1 /* tc-i386.c -- Assemble code for the Intel 80386
2 Copyright (C) 1989-2020 Free Software Foundation, Inc.
4 This file is part of GAS, the GNU Assembler.
6 GAS is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
11 GAS is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GAS; see the file COPYING. If not, write to the Free
18 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
21 /* Intel 80386 machine specific gas.
25 Bugs & suggestions are completely welcome. This is free software.
26 Please help us make it better. */
29 #include "safe-ctype.h"
31 #include "dwarf2dbg.h"
32 #include "dw2gencfi.h"
33 #include "elf/x86-64.h"
34 #include "opcodes/i386-init.h"
39 #ifdef HAVE_SYS_PARAM_H
40 #include <sys/param.h>
43 #define INT_MAX (int) (((unsigned) (-1)) >> 1)
47 #ifndef INFER_ADDR_PREFIX
48 #define INFER_ADDR_PREFIX 1
52 #define DEFAULT_ARCH "i386"
57 #define INLINE __inline__
63 /* Prefixes will be emitted in the order defined below.
64 WAIT_PREFIX must be the first prefix since FWAIT is really is an
65 instruction, and so must come before any prefixes.
66 The preferred prefix order is SEG_PREFIX, ADDR_PREFIX, DATA_PREFIX,
67 REP_PREFIX/HLE_PREFIX, LOCK_PREFIX. */
73 #define HLE_PREFIX REP_PREFIX
74 #define BND_PREFIX REP_PREFIX
76 #define REX_PREFIX 6 /* must come last. */
77 #define MAX_PREFIXES 7 /* max prefixes per opcode */
79 /* we define the syntax here (modulo base,index,scale syntax) */
80 #define REGISTER_PREFIX '%'
81 #define IMMEDIATE_PREFIX '$'
82 #define ABSOLUTE_PREFIX '*'
84 /* these are the instruction mnemonic suffixes in AT&T syntax or
85 memory operand size in Intel syntax. */
86 #define WORD_MNEM_SUFFIX 'w'
87 #define BYTE_MNEM_SUFFIX 'b'
88 #define SHORT_MNEM_SUFFIX 's'
89 #define LONG_MNEM_SUFFIX 'l'
90 #define QWORD_MNEM_SUFFIX 'q'
91 /* Intel Syntax. Use a non-ascii letter since since it never appears
93 #define LONG_DOUBLE_MNEM_SUFFIX '\1'
95 #define END_OF_INSN '\0'
97 /* This matches the C -> StaticRounding alias in the opcode table. */
98 #define commutative staticrounding
101 'templates' is for grouping together 'template' structures for opcodes
102 of the same name. This is only used for storing the insns in the grand
103 ole hash table of insns.
104 The templates themselves start at START and range up to (but not including)
109 const insn_template *start;
110 const insn_template *end;
114 /* 386 operand encoding bytes: see 386 book for details of this. */
117 unsigned int regmem; /* codes register or memory operand */
118 unsigned int reg; /* codes register operand (or extended opcode) */
119 unsigned int mode; /* how to interpret regmem & reg */
123 /* x86-64 extension prefix. */
124 typedef int rex_byte;
126 /* 386 opcode byte to code indirect addressing. */
135 /* x86 arch names, types and features */
138 const char *name; /* arch name */
139 unsigned int len; /* arch string length */
140 enum processor_type type; /* arch type */
141 i386_cpu_flags flags; /* cpu feature flags */
142 unsigned int skip; /* show_arch should skip this. */
146 /* Used to turn off indicated flags. */
149 const char *name; /* arch name */
150 unsigned int len; /* arch string length */
151 i386_cpu_flags flags; /* cpu feature flags */
155 static void update_code_flag (int, int);
156 static void set_code_flag (int);
157 static void set_16bit_gcc_code_flag (int);
158 static void set_intel_syntax (int);
159 static void set_intel_mnemonic (int);
160 static void set_allow_index_reg (int);
161 static void set_check (int);
162 static void set_cpu_arch (int);
164 static void pe_directive_secrel (int);
166 static void signed_cons (int);
167 static char *output_invalid (int c);
168 static int i386_finalize_immediate (segT, expressionS *, i386_operand_type,
170 static int i386_finalize_displacement (segT, expressionS *, i386_operand_type,
172 static int i386_att_operand (char *);
173 static int i386_intel_operand (char *, int);
174 static int i386_intel_simplify (expressionS *);
175 static int i386_intel_parse_name (const char *, expressionS *);
176 static const reg_entry *parse_register (char *, char **);
177 static char *parse_insn (char *, char *);
178 static char *parse_operands (char *, const char *);
179 static void swap_operands (void);
180 static void swap_2_operands (int, int);
181 static enum flag_code i386_addressing_mode (void);
182 static void optimize_imm (void);
183 static void optimize_disp (void);
184 static const insn_template *match_template (char);
185 static int check_string (void);
186 static int process_suffix (void);
187 static int check_byte_reg (void);
188 static int check_long_reg (void);
189 static int check_qword_reg (void);
190 static int check_word_reg (void);
191 static int finalize_imm (void);
192 static int process_operands (void);
193 static const seg_entry *build_modrm_byte (void);
194 static void output_insn (void);
195 static void output_imm (fragS *, offsetT);
196 static void output_disp (fragS *, offsetT);
198 static void s_bss (int);
200 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
201 static void handle_large_common (int small ATTRIBUTE_UNUSED);
203 /* GNU_PROPERTY_X86_ISA_1_USED. */
204 static unsigned int x86_isa_1_used;
205 /* GNU_PROPERTY_X86_FEATURE_2_USED. */
206 static unsigned int x86_feature_2_used;
207 /* Generate x86 used ISA and feature properties. */
208 static unsigned int x86_used_note = DEFAULT_X86_USED_NOTE;
211 static const char *default_arch = DEFAULT_ARCH;
213 /* parse_register() returns this when a register alias cannot be used. */
214 static const reg_entry bad_reg = { "<bad>", OPERAND_TYPE_NONE, 0, 0,
215 { Dw2Inval, Dw2Inval } };
217 /* This struct describes rounding control and SAE in the instruction. */
231 static struct RC_Operation rc_op;
233 /* The struct describes masking, applied to OPERAND in the instruction.
234 MASK is a pointer to the corresponding mask register. ZEROING tells
235 whether merging or zeroing mask is used. */
236 struct Mask_Operation
238 const reg_entry *mask;
239 unsigned int zeroing;
240 /* The operand where this operation is associated. */
244 static struct Mask_Operation mask_op;
246 /* The struct describes broadcasting, applied to OPERAND. FACTOR is
248 struct Broadcast_Operation
250 /* Type of broadcast: {1to2}, {1to4}, {1to8}, or {1to16}. */
253 /* Index of broadcasted operand. */
256 /* Number of bytes to broadcast. */
260 static struct Broadcast_Operation broadcast_op;
265 /* VEX prefix is either 2 byte or 3 byte. EVEX is 4 byte. */
266 unsigned char bytes[4];
268 /* Destination or source register specifier. */
269 const reg_entry *register_specifier;
272 /* 'md_assemble ()' gathers together information and puts it into a
279 const reg_entry *regs;
284 operand_size_mismatch,
285 operand_type_mismatch,
286 register_type_mismatch,
287 number_of_operands_mismatch,
288 invalid_instruction_suffix,
290 unsupported_with_intel_mnemonic,
294 invalid_vsib_address,
295 invalid_vector_register_set,
296 invalid_tmm_register_set,
297 unsupported_vector_index_register,
298 unsupported_broadcast,
301 mask_not_on_destination,
304 rc_sae_operand_not_last_imm,
305 invalid_register_operand,
310 /* TM holds the template for the insn were currently assembling. */
313 /* SUFFIX holds the instruction size suffix for byte, word, dword
314 or qword, if given. */
317 /* OPERANDS gives the number of given operands. */
318 unsigned int operands;
320 /* REG_OPERANDS, DISP_OPERANDS, MEM_OPERANDS, IMM_OPERANDS give the number
321 of given register, displacement, memory operands and immediate
323 unsigned int reg_operands, disp_operands, mem_operands, imm_operands;
325 /* TYPES [i] is the type (see above #defines) which tells us how to
326 use OP[i] for the corresponding operand. */
327 i386_operand_type types[MAX_OPERANDS];
329 /* Displacement expression, immediate expression, or register for each
331 union i386_op op[MAX_OPERANDS];
333 /* Flags for operands. */
334 unsigned int flags[MAX_OPERANDS];
335 #define Operand_PCrel 1
336 #define Operand_Mem 2
338 /* Relocation type for operand */
339 enum bfd_reloc_code_real reloc[MAX_OPERANDS];
341 /* BASE_REG, INDEX_REG, and LOG2_SCALE_FACTOR are used to encode
342 the base index byte below. */
343 const reg_entry *base_reg;
344 const reg_entry *index_reg;
345 unsigned int log2_scale_factor;
347 /* SEG gives the seg_entries of this insn. They are zero unless
348 explicit segment overrides are given. */
349 const seg_entry *seg[2];
351 /* Copied first memory operand string, for re-checking. */
354 /* PREFIX holds all the given prefix opcodes (usually null).
355 PREFIXES is the number of prefix opcodes. */
356 unsigned int prefixes;
357 unsigned char prefix[MAX_PREFIXES];
359 /* Register is in low 3 bits of opcode. */
360 bfd_boolean short_form;
362 /* The operand to a branch insn indicates an absolute branch. */
363 bfd_boolean jumpabsolute;
365 /* Extended states. */
373 xstate_ymm = 1 << 2 | xstate_xmm,
375 xstate_zmm = 1 << 3 | xstate_ymm,
380 /* Has GOTPC or TLS relocation. */
381 bfd_boolean has_gotpc_tls_reloc;
383 /* RM and SIB are the modrm byte and the sib byte where the
384 addressing modes of this insn are encoded. */
391 /* Masking attributes. */
392 struct Mask_Operation *mask;
394 /* Rounding control and SAE attributes. */
395 struct RC_Operation *rounding;
397 /* Broadcasting attributes. */
398 struct Broadcast_Operation *broadcast;
400 /* Compressed disp8*N attribute. */
401 unsigned int memshift;
403 /* Prefer load or store in encoding. */
406 dir_encoding_default = 0,
412 /* Prefer 8bit or 32bit displacement in encoding. */
415 disp_encoding_default = 0,
420 /* Prefer the REX byte in encoding. */
421 bfd_boolean rex_encoding;
423 /* Disable instruction size optimization. */
424 bfd_boolean no_optimize;
426 /* How to encode vector instructions. */
429 vex_encoding_default = 0,
437 const char *rep_prefix;
440 const char *hle_prefix;
442 /* Have BND prefix. */
443 const char *bnd_prefix;
445 /* Have NOTRACK prefix. */
446 const char *notrack_prefix;
449 enum i386_error error;
452 typedef struct _i386_insn i386_insn;
454 /* Link RC type with corresponding string, that'll be looked for in
463 static const struct RC_name RC_NamesTable[] =
465 { rne, STRING_COMMA_LEN ("rn-sae") },
466 { rd, STRING_COMMA_LEN ("rd-sae") },
467 { ru, STRING_COMMA_LEN ("ru-sae") },
468 { rz, STRING_COMMA_LEN ("rz-sae") },
469 { saeonly, STRING_COMMA_LEN ("sae") },
472 /* List of chars besides those in app.c:symbol_chars that can start an
473 operand. Used to prevent the scrubber eating vital white-space. */
474 const char extra_symbol_chars[] = "*%-([{}"
483 #if ((defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) \
484 && !defined (TE_GNU) \
485 && !defined (TE_LINUX) \
486 && !defined (TE_FreeBSD) \
487 && !defined (TE_DragonFly) \
488 && !defined (TE_NetBSD))
489 /* This array holds the chars that always start a comment. If the
490 pre-processor is disabled, these aren't very useful. The option
491 --divide will remove '/' from this list. */
492 const char *i386_comment_chars = "#/";
493 #define SVR4_COMMENT_CHARS 1
494 #define PREFIX_SEPARATOR '\\'
497 const char *i386_comment_chars = "#";
498 #define PREFIX_SEPARATOR '/'
501 /* This array holds the chars that only start a comment at the beginning of
502 a line. If the line seems to have the form '# 123 filename'
503 .line and .file directives will appear in the pre-processed output.
504 Note that input_file.c hand checks for '#' at the beginning of the
505 first line of the input file. This is because the compiler outputs
506 #NO_APP at the beginning of its output.
507 Also note that comments started like this one will always work if
508 '/' isn't otherwise defined. */
509 const char line_comment_chars[] = "#/";
511 const char line_separator_chars[] = ";";
513 /* Chars that can be used to separate mant from exp in floating point
515 const char EXP_CHARS[] = "eE";
517 /* Chars that mean this number is a floating point constant
520 const char FLT_CHARS[] = "fFdDxX";
522 /* Tables for lexical analysis. */
523 static char mnemonic_chars[256];
524 static char register_chars[256];
525 static char operand_chars[256];
526 static char identifier_chars[256];
527 static char digit_chars[256];
529 /* Lexical macros. */
530 #define is_mnemonic_char(x) (mnemonic_chars[(unsigned char) x])
531 #define is_operand_char(x) (operand_chars[(unsigned char) x])
532 #define is_register_char(x) (register_chars[(unsigned char) x])
533 #define is_space_char(x) ((x) == ' ')
534 #define is_identifier_char(x) (identifier_chars[(unsigned char) x])
535 #define is_digit_char(x) (digit_chars[(unsigned char) x])
537 /* All non-digit non-letter characters that may occur in an operand. */
538 static char operand_special_chars[] = "%$-+(,)*._~/<>|&^!:[@]";
540 /* md_assemble() always leaves the strings it's passed unaltered. To
541 effect this we maintain a stack of saved characters that we've smashed
542 with '\0's (indicating end of strings for various sub-fields of the
543 assembler instruction). */
544 static char save_stack[32];
545 static char *save_stack_p;
546 #define END_STRING_AND_SAVE(s) \
547 do { *save_stack_p++ = *(s); *(s) = '\0'; } while (0)
548 #define RESTORE_END_STRING(s) \
549 do { *(s) = *--save_stack_p; } while (0)
551 /* The instruction we're assembling. */
554 /* Possible templates for current insn. */
555 static const templates *current_templates;
557 /* Per instruction expressionS buffers: max displacements & immediates. */
558 static expressionS disp_expressions[MAX_MEMORY_OPERANDS];
559 static expressionS im_expressions[MAX_IMMEDIATE_OPERANDS];
561 /* Current operand we are working on. */
562 static int this_operand = -1;
564 /* We support four different modes. FLAG_CODE variable is used to distinguish
572 static enum flag_code flag_code;
573 static unsigned int object_64bit;
574 static unsigned int disallow_64bit_reloc;
575 static int use_rela_relocations = 0;
576 /* __tls_get_addr/___tls_get_addr symbol for TLS. */
577 static const char *tls_get_addr;
579 #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \
580 || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
581 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
583 /* The ELF ABI to use. */
591 static enum x86_elf_abi x86_elf_abi = I386_ABI;
594 #if defined (TE_PE) || defined (TE_PEP)
595 /* Use big object file format. */
596 static int use_big_obj = 0;
599 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
600 /* 1 if generating code for a shared library. */
601 static int shared = 0;
604 /* 1 for intel syntax,
606 static int intel_syntax = 0;
608 static enum x86_64_isa
610 amd64 = 1, /* AMD64 ISA. */
611 intel64 /* Intel64 ISA. */
614 /* 1 for intel mnemonic,
615 0 if att mnemonic. */
616 static int intel_mnemonic = !SYSV386_COMPAT;
618 /* 1 if pseudo registers are permitted. */
619 static int allow_pseudo_reg = 0;
621 /* 1 if register prefix % not required. */
622 static int allow_naked_reg = 0;
624 /* 1 if the assembler should add BND prefix for all control-transferring
625 instructions supporting it, even if this prefix wasn't specified
627 static int add_bnd_prefix = 0;
629 /* 1 if pseudo index register, eiz/riz, is allowed . */
630 static int allow_index_reg = 0;
632 /* 1 if the assembler should ignore LOCK prefix, even if it was
633 specified explicitly. */
634 static int omit_lock_prefix = 0;
636 /* 1 if the assembler should encode lfence, mfence, and sfence as
637 "lock addl $0, (%{re}sp)". */
638 static int avoid_fence = 0;
640 /* 1 if lfence should be inserted after every load. */
641 static int lfence_after_load = 0;
643 /* Non-zero if lfence should be inserted before indirect branch. */
644 static enum lfence_before_indirect_branch_kind
646 lfence_branch_none = 0,
647 lfence_branch_register,
648 lfence_branch_memory,
651 lfence_before_indirect_branch;
653 /* Non-zero if lfence should be inserted before ret. */
654 static enum lfence_before_ret_kind
656 lfence_before_ret_none = 0,
657 lfence_before_ret_not,
658 lfence_before_ret_or,
659 lfence_before_ret_shl
663 /* Types of previous instruction is .byte or prefix. */
678 /* 1 if the assembler should generate relax relocations. */
680 static int generate_relax_relocations
681 = DEFAULT_GENERATE_X86_RELAX_RELOCATIONS;
683 static enum check_kind
689 sse_check, operand_check = check_warning;
691 /* Non-zero if branches should be aligned within power of 2 boundary. */
692 static int align_branch_power = 0;
694 /* Types of branches to align. */
695 enum align_branch_kind
697 align_branch_none = 0,
698 align_branch_jcc = 1,
699 align_branch_fused = 2,
700 align_branch_jmp = 3,
701 align_branch_call = 4,
702 align_branch_indirect = 5,
706 /* Type bits of branches to align. */
707 enum align_branch_bit
709 align_branch_jcc_bit = 1 << align_branch_jcc,
710 align_branch_fused_bit = 1 << align_branch_fused,
711 align_branch_jmp_bit = 1 << align_branch_jmp,
712 align_branch_call_bit = 1 << align_branch_call,
713 align_branch_indirect_bit = 1 << align_branch_indirect,
714 align_branch_ret_bit = 1 << align_branch_ret
717 static unsigned int align_branch = (align_branch_jcc_bit
718 | align_branch_fused_bit
719 | align_branch_jmp_bit);
721 /* Types of condition jump used by macro-fusion. */
724 mf_jcc_jo = 0, /* base opcode 0x70 */
725 mf_jcc_jc, /* base opcode 0x72 */
726 mf_jcc_je, /* base opcode 0x74 */
727 mf_jcc_jna, /* base opcode 0x76 */
728 mf_jcc_js, /* base opcode 0x78 */
729 mf_jcc_jp, /* base opcode 0x7a */
730 mf_jcc_jl, /* base opcode 0x7c */
731 mf_jcc_jle, /* base opcode 0x7e */
734 /* Types of compare flag-modifying insntructions used by macro-fusion. */
737 mf_cmp_test_and, /* test/cmp */
738 mf_cmp_alu_cmp, /* add/sub/cmp */
739 mf_cmp_incdec /* inc/dec */
742 /* The maximum padding size for fused jcc. CMP like instruction can
743 be 9 bytes and jcc can be 6 bytes. Leave room just in case for
745 #define MAX_FUSED_JCC_PADDING_SIZE 20
747 /* The maximum number of prefixes added for an instruction. */
748 static unsigned int align_branch_prefix_size = 5;
751 1. Clear the REX_W bit with register operand if possible.
752 2. Above plus use 128bit vector instruction to clear the full vector
755 static int optimize = 0;
758 1. Clear the REX_W bit with register operand if possible.
759 2. Above plus use 128bit vector instruction to clear the full vector
761 3. Above plus optimize "test{q,l,w} $imm8,%r{64,32,16}" to
764 static int optimize_for_space = 0;
766 /* Register prefix used for error message. */
767 static const char *register_prefix = "%";
769 /* Used in 16 bit gcc mode to add an l suffix to call, ret, enter,
770 leave, push, and pop instructions so that gcc has the same stack
771 frame as in 32 bit mode. */
772 static char stackop_size = '\0';
774 /* Non-zero to optimize code alignment. */
775 int optimize_align_code = 1;
777 /* Non-zero to quieten some warnings. */
778 static int quiet_warnings = 0;
781 static const char *cpu_arch_name = NULL;
782 static char *cpu_sub_arch_name = NULL;
784 /* CPU feature flags. */
785 static i386_cpu_flags cpu_arch_flags = CPU_UNKNOWN_FLAGS;
787 /* If we have selected a cpu we are generating instructions for. */
788 static int cpu_arch_tune_set = 0;
790 /* Cpu we are generating instructions for. */
791 enum processor_type cpu_arch_tune = PROCESSOR_UNKNOWN;
793 /* CPU feature flags of cpu we are generating instructions for. */
794 static i386_cpu_flags cpu_arch_tune_flags;
796 /* CPU instruction set architecture used. */
797 enum processor_type cpu_arch_isa = PROCESSOR_UNKNOWN;
799 /* CPU feature flags of instruction set architecture used. */
800 i386_cpu_flags cpu_arch_isa_flags;
802 /* If set, conditional jumps are not automatically promoted to handle
803 larger than a byte offset. */
804 static unsigned int no_cond_jump_promotion = 0;
806 /* Encode SSE instructions with VEX prefix. */
807 static unsigned int sse2avx;
809 /* Encode scalar AVX instructions with specific vector length. */
816 /* Encode VEX WIG instructions with specific vex.w. */
823 /* Encode scalar EVEX LIG instructions with specific vector length. */
831 /* Encode EVEX WIG instructions with specific evex.w. */
838 /* Value to encode in EVEX RC bits, for SAE-only instructions. */
839 static enum rc_type evexrcig = rne;
841 /* Pre-defined "_GLOBAL_OFFSET_TABLE_". */
842 static symbolS *GOT_symbol;
844 /* The dwarf2 return column, adjusted for 32 or 64 bit. */
845 unsigned int x86_dwarf2_return_column;
847 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
848 int x86_cie_data_alignment;
850 /* Interface to relax_segment.
851 There are 3 major relax states for 386 jump insns because the
852 different types of jumps add different sizes to frags when we're
853 figuring out what sort of jump to choose to reach a given label.
855 BRANCH_PADDING, BRANCH_PREFIX and FUSED_JCC_PADDING are used to align
856 branches which are handled by md_estimate_size_before_relax() and
857 i386_generic_table_relax_frag(). */
860 #define UNCOND_JUMP 0
862 #define COND_JUMP86 2
863 #define BRANCH_PADDING 3
864 #define BRANCH_PREFIX 4
865 #define FUSED_JCC_PADDING 5
870 #define SMALL16 (SMALL | CODE16)
872 #define BIG16 (BIG | CODE16)
876 #define INLINE __inline__
882 #define ENCODE_RELAX_STATE(type, size) \
883 ((relax_substateT) (((type) << 2) | (size)))
884 #define TYPE_FROM_RELAX_STATE(s) \
886 #define DISP_SIZE_FROM_RELAX_STATE(s) \
887 ((((s) & 3) == BIG ? 4 : (((s) & 3) == BIG16 ? 2 : 1)))
889 /* This table is used by relax_frag to promote short jumps to long
890 ones where necessary. SMALL (short) jumps may be promoted to BIG
891 (32 bit long) ones, and SMALL16 jumps to BIG16 (16 bit long). We
892 don't allow a short jump in a 32 bit code segment to be promoted to
893 a 16 bit offset jump because it's slower (requires data size
894 prefix), and doesn't work, unless the destination is in the bottom
895 64k of the code segment (The top 16 bits of eip are zeroed). */
897 const relax_typeS md_relax_table[] =
900 1) most positive reach of this state,
901 2) most negative reach of this state,
902 3) how many bytes this mode will have in the variable part of the frag
903 4) which index into the table to try if we can't fit into this one. */
905 /* UNCOND_JUMP states. */
906 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP, BIG)},
907 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP, BIG16)},
908 /* dword jmp adds 4 bytes to frag:
909 0 extra opcode bytes, 4 displacement bytes. */
911 /* word jmp adds 2 byte2 to frag:
912 0 extra opcode bytes, 2 displacement bytes. */
915 /* COND_JUMP states. */
916 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP, BIG)},
917 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP, BIG16)},
918 /* dword conditionals adds 5 bytes to frag:
919 1 extra opcode byte, 4 displacement bytes. */
921 /* word conditionals add 3 bytes to frag:
922 1 extra opcode byte, 2 displacement bytes. */
925 /* COND_JUMP86 states. */
926 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86, BIG)},
927 {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86, BIG16)},
928 /* dword conditionals adds 5 bytes to frag:
929 1 extra opcode byte, 4 displacement bytes. */
931 /* word conditionals add 4 bytes to frag:
932 1 displacement byte and a 3 byte long branch insn. */
936 static const arch_entry cpu_arch[] =
938 /* Do not replace the first two entries - i386_target_format()
939 relies on them being there in this order. */
940 { STRING_COMMA_LEN ("generic32"), PROCESSOR_GENERIC32,
941 CPU_GENERIC32_FLAGS, 0 },
942 { STRING_COMMA_LEN ("generic64"), PROCESSOR_GENERIC64,
943 CPU_GENERIC64_FLAGS, 0 },
944 { STRING_COMMA_LEN ("i8086"), PROCESSOR_UNKNOWN,
946 { STRING_COMMA_LEN ("i186"), PROCESSOR_UNKNOWN,
948 { STRING_COMMA_LEN ("i286"), PROCESSOR_UNKNOWN,
950 { STRING_COMMA_LEN ("i386"), PROCESSOR_I386,
952 { STRING_COMMA_LEN ("i486"), PROCESSOR_I486,
954 { STRING_COMMA_LEN ("i586"), PROCESSOR_PENTIUM,
956 { STRING_COMMA_LEN ("i686"), PROCESSOR_PENTIUMPRO,
958 { STRING_COMMA_LEN ("pentium"), PROCESSOR_PENTIUM,
960 { STRING_COMMA_LEN ("pentiumpro"), PROCESSOR_PENTIUMPRO,
961 CPU_PENTIUMPRO_FLAGS, 0 },
962 { STRING_COMMA_LEN ("pentiumii"), PROCESSOR_PENTIUMPRO,
964 { STRING_COMMA_LEN ("pentiumiii"),PROCESSOR_PENTIUMPRO,
966 { STRING_COMMA_LEN ("pentium4"), PROCESSOR_PENTIUM4,
968 { STRING_COMMA_LEN ("prescott"), PROCESSOR_NOCONA,
970 { STRING_COMMA_LEN ("nocona"), PROCESSOR_NOCONA,
971 CPU_NOCONA_FLAGS, 0 },
972 { STRING_COMMA_LEN ("yonah"), PROCESSOR_CORE,
974 { STRING_COMMA_LEN ("core"), PROCESSOR_CORE,
976 { STRING_COMMA_LEN ("merom"), PROCESSOR_CORE2,
977 CPU_CORE2_FLAGS, 1 },
978 { STRING_COMMA_LEN ("core2"), PROCESSOR_CORE2,
979 CPU_CORE2_FLAGS, 0 },
980 { STRING_COMMA_LEN ("corei7"), PROCESSOR_COREI7,
981 CPU_COREI7_FLAGS, 0 },
982 { STRING_COMMA_LEN ("l1om"), PROCESSOR_L1OM,
984 { STRING_COMMA_LEN ("k1om"), PROCESSOR_K1OM,
986 { STRING_COMMA_LEN ("iamcu"), PROCESSOR_IAMCU,
987 CPU_IAMCU_FLAGS, 0 },
988 { STRING_COMMA_LEN ("k6"), PROCESSOR_K6,
990 { STRING_COMMA_LEN ("k6_2"), PROCESSOR_K6,
992 { STRING_COMMA_LEN ("athlon"), PROCESSOR_ATHLON,
993 CPU_ATHLON_FLAGS, 0 },
994 { STRING_COMMA_LEN ("sledgehammer"), PROCESSOR_K8,
996 { STRING_COMMA_LEN ("opteron"), PROCESSOR_K8,
998 { STRING_COMMA_LEN ("k8"), PROCESSOR_K8,
1000 { STRING_COMMA_LEN ("amdfam10"), PROCESSOR_AMDFAM10,
1001 CPU_AMDFAM10_FLAGS, 0 },
1002 { STRING_COMMA_LEN ("bdver1"), PROCESSOR_BD,
1003 CPU_BDVER1_FLAGS, 0 },
1004 { STRING_COMMA_LEN ("bdver2"), PROCESSOR_BD,
1005 CPU_BDVER2_FLAGS, 0 },
1006 { STRING_COMMA_LEN ("bdver3"), PROCESSOR_BD,
1007 CPU_BDVER3_FLAGS, 0 },
1008 { STRING_COMMA_LEN ("bdver4"), PROCESSOR_BD,
1009 CPU_BDVER4_FLAGS, 0 },
1010 { STRING_COMMA_LEN ("znver1"), PROCESSOR_ZNVER,
1011 CPU_ZNVER1_FLAGS, 0 },
1012 { STRING_COMMA_LEN ("znver2"), PROCESSOR_ZNVER,
1013 CPU_ZNVER2_FLAGS, 0 },
1014 { STRING_COMMA_LEN ("btver1"), PROCESSOR_BT,
1015 CPU_BTVER1_FLAGS, 0 },
1016 { STRING_COMMA_LEN ("btver2"), PROCESSOR_BT,
1017 CPU_BTVER2_FLAGS, 0 },
1018 { STRING_COMMA_LEN (".8087"), PROCESSOR_UNKNOWN,
1019 CPU_8087_FLAGS, 0 },
1020 { STRING_COMMA_LEN (".287"), PROCESSOR_UNKNOWN,
1022 { STRING_COMMA_LEN (".387"), PROCESSOR_UNKNOWN,
1024 { STRING_COMMA_LEN (".687"), PROCESSOR_UNKNOWN,
1026 { STRING_COMMA_LEN (".cmov"), PROCESSOR_UNKNOWN,
1027 CPU_CMOV_FLAGS, 0 },
1028 { STRING_COMMA_LEN (".fxsr"), PROCESSOR_UNKNOWN,
1029 CPU_FXSR_FLAGS, 0 },
1030 { STRING_COMMA_LEN (".mmx"), PROCESSOR_UNKNOWN,
1032 { STRING_COMMA_LEN (".sse"), PROCESSOR_UNKNOWN,
1034 { STRING_COMMA_LEN (".sse2"), PROCESSOR_UNKNOWN,
1035 CPU_SSE2_FLAGS, 0 },
1036 { STRING_COMMA_LEN (".sse3"), PROCESSOR_UNKNOWN,
1037 CPU_SSE3_FLAGS, 0 },
1038 { STRING_COMMA_LEN (".sse4a"), PROCESSOR_UNKNOWN,
1039 CPU_SSE4A_FLAGS, 0 },
1040 { STRING_COMMA_LEN (".ssse3"), PROCESSOR_UNKNOWN,
1041 CPU_SSSE3_FLAGS, 0 },
1042 { STRING_COMMA_LEN (".sse4.1"), PROCESSOR_UNKNOWN,
1043 CPU_SSE4_1_FLAGS, 0 },
1044 { STRING_COMMA_LEN (".sse4.2"), PROCESSOR_UNKNOWN,
1045 CPU_SSE4_2_FLAGS, 0 },
1046 { STRING_COMMA_LEN (".sse4"), PROCESSOR_UNKNOWN,
1047 CPU_SSE4_2_FLAGS, 0 },
1048 { STRING_COMMA_LEN (".avx"), PROCESSOR_UNKNOWN,
1050 { STRING_COMMA_LEN (".avx2"), PROCESSOR_UNKNOWN,
1051 CPU_AVX2_FLAGS, 0 },
1052 { STRING_COMMA_LEN (".avx512f"), PROCESSOR_UNKNOWN,
1053 CPU_AVX512F_FLAGS, 0 },
1054 { STRING_COMMA_LEN (".avx512cd"), PROCESSOR_UNKNOWN,
1055 CPU_AVX512CD_FLAGS, 0 },
1056 { STRING_COMMA_LEN (".avx512er"), PROCESSOR_UNKNOWN,
1057 CPU_AVX512ER_FLAGS, 0 },
1058 { STRING_COMMA_LEN (".avx512pf"), PROCESSOR_UNKNOWN,
1059 CPU_AVX512PF_FLAGS, 0 },
1060 { STRING_COMMA_LEN (".avx512dq"), PROCESSOR_UNKNOWN,
1061 CPU_AVX512DQ_FLAGS, 0 },
1062 { STRING_COMMA_LEN (".avx512bw"), PROCESSOR_UNKNOWN,
1063 CPU_AVX512BW_FLAGS, 0 },
1064 { STRING_COMMA_LEN (".avx512vl"), PROCESSOR_UNKNOWN,
1065 CPU_AVX512VL_FLAGS, 0 },
1066 { STRING_COMMA_LEN (".vmx"), PROCESSOR_UNKNOWN,
1068 { STRING_COMMA_LEN (".vmfunc"), PROCESSOR_UNKNOWN,
1069 CPU_VMFUNC_FLAGS, 0 },
1070 { STRING_COMMA_LEN (".smx"), PROCESSOR_UNKNOWN,
1072 { STRING_COMMA_LEN (".xsave"), PROCESSOR_UNKNOWN,
1073 CPU_XSAVE_FLAGS, 0 },
1074 { STRING_COMMA_LEN (".xsaveopt"), PROCESSOR_UNKNOWN,
1075 CPU_XSAVEOPT_FLAGS, 0 },
1076 { STRING_COMMA_LEN (".xsavec"), PROCESSOR_UNKNOWN,
1077 CPU_XSAVEC_FLAGS, 0 },
1078 { STRING_COMMA_LEN (".xsaves"), PROCESSOR_UNKNOWN,
1079 CPU_XSAVES_FLAGS, 0 },
1080 { STRING_COMMA_LEN (".aes"), PROCESSOR_UNKNOWN,
1082 { STRING_COMMA_LEN (".pclmul"), PROCESSOR_UNKNOWN,
1083 CPU_PCLMUL_FLAGS, 0 },
1084 { STRING_COMMA_LEN (".clmul"), PROCESSOR_UNKNOWN,
1085 CPU_PCLMUL_FLAGS, 1 },
1086 { STRING_COMMA_LEN (".fsgsbase"), PROCESSOR_UNKNOWN,
1087 CPU_FSGSBASE_FLAGS, 0 },
1088 { STRING_COMMA_LEN (".rdrnd"), PROCESSOR_UNKNOWN,
1089 CPU_RDRND_FLAGS, 0 },
1090 { STRING_COMMA_LEN (".f16c"), PROCESSOR_UNKNOWN,
1091 CPU_F16C_FLAGS, 0 },
1092 { STRING_COMMA_LEN (".bmi2"), PROCESSOR_UNKNOWN,
1093 CPU_BMI2_FLAGS, 0 },
1094 { STRING_COMMA_LEN (".fma"), PROCESSOR_UNKNOWN,
1096 { STRING_COMMA_LEN (".fma4"), PROCESSOR_UNKNOWN,
1097 CPU_FMA4_FLAGS, 0 },
1098 { STRING_COMMA_LEN (".xop"), PROCESSOR_UNKNOWN,
1100 { STRING_COMMA_LEN (".lwp"), PROCESSOR_UNKNOWN,
1102 { STRING_COMMA_LEN (".movbe"), PROCESSOR_UNKNOWN,
1103 CPU_MOVBE_FLAGS, 0 },
1104 { STRING_COMMA_LEN (".cx16"), PROCESSOR_UNKNOWN,
1105 CPU_CX16_FLAGS, 0 },
1106 { STRING_COMMA_LEN (".ept"), PROCESSOR_UNKNOWN,
1108 { STRING_COMMA_LEN (".lzcnt"), PROCESSOR_UNKNOWN,
1109 CPU_LZCNT_FLAGS, 0 },
1110 { STRING_COMMA_LEN (".popcnt"), PROCESSOR_UNKNOWN,
1111 CPU_POPCNT_FLAGS, 0 },
1112 { STRING_COMMA_LEN (".hle"), PROCESSOR_UNKNOWN,
1114 { STRING_COMMA_LEN (".rtm"), PROCESSOR_UNKNOWN,
1116 { STRING_COMMA_LEN (".invpcid"), PROCESSOR_UNKNOWN,
1117 CPU_INVPCID_FLAGS, 0 },
1118 { STRING_COMMA_LEN (".clflush"), PROCESSOR_UNKNOWN,
1119 CPU_CLFLUSH_FLAGS, 0 },
1120 { STRING_COMMA_LEN (".nop"), PROCESSOR_UNKNOWN,
1122 { STRING_COMMA_LEN (".syscall"), PROCESSOR_UNKNOWN,
1123 CPU_SYSCALL_FLAGS, 0 },
1124 { STRING_COMMA_LEN (".rdtscp"), PROCESSOR_UNKNOWN,
1125 CPU_RDTSCP_FLAGS, 0 },
1126 { STRING_COMMA_LEN (".3dnow"), PROCESSOR_UNKNOWN,
1127 CPU_3DNOW_FLAGS, 0 },
1128 { STRING_COMMA_LEN (".3dnowa"), PROCESSOR_UNKNOWN,
1129 CPU_3DNOWA_FLAGS, 0 },
1130 { STRING_COMMA_LEN (".padlock"), PROCESSOR_UNKNOWN,
1131 CPU_PADLOCK_FLAGS, 0 },
1132 { STRING_COMMA_LEN (".pacifica"), PROCESSOR_UNKNOWN,
1133 CPU_SVME_FLAGS, 1 },
1134 { STRING_COMMA_LEN (".svme"), PROCESSOR_UNKNOWN,
1135 CPU_SVME_FLAGS, 0 },
1136 { STRING_COMMA_LEN (".sse4a"), PROCESSOR_UNKNOWN,
1137 CPU_SSE4A_FLAGS, 0 },
1138 { STRING_COMMA_LEN (".abm"), PROCESSOR_UNKNOWN,
1140 { STRING_COMMA_LEN (".bmi"), PROCESSOR_UNKNOWN,
1142 { STRING_COMMA_LEN (".tbm"), PROCESSOR_UNKNOWN,
1144 { STRING_COMMA_LEN (".adx"), PROCESSOR_UNKNOWN,
1146 { STRING_COMMA_LEN (".rdseed"), PROCESSOR_UNKNOWN,
1147 CPU_RDSEED_FLAGS, 0 },
1148 { STRING_COMMA_LEN (".prfchw"), PROCESSOR_UNKNOWN,
1149 CPU_PRFCHW_FLAGS, 0 },
1150 { STRING_COMMA_LEN (".smap"), PROCESSOR_UNKNOWN,
1151 CPU_SMAP_FLAGS, 0 },
1152 { STRING_COMMA_LEN (".mpx"), PROCESSOR_UNKNOWN,
1154 { STRING_COMMA_LEN (".sha"), PROCESSOR_UNKNOWN,
1156 { STRING_COMMA_LEN (".clflushopt"), PROCESSOR_UNKNOWN,
1157 CPU_CLFLUSHOPT_FLAGS, 0 },
1158 { STRING_COMMA_LEN (".prefetchwt1"), PROCESSOR_UNKNOWN,
1159 CPU_PREFETCHWT1_FLAGS, 0 },
1160 { STRING_COMMA_LEN (".se1"), PROCESSOR_UNKNOWN,
1162 { STRING_COMMA_LEN (".clwb"), PROCESSOR_UNKNOWN,
1163 CPU_CLWB_FLAGS, 0 },
1164 { STRING_COMMA_LEN (".avx512ifma"), PROCESSOR_UNKNOWN,
1165 CPU_AVX512IFMA_FLAGS, 0 },
1166 { STRING_COMMA_LEN (".avx512vbmi"), PROCESSOR_UNKNOWN,
1167 CPU_AVX512VBMI_FLAGS, 0 },
1168 { STRING_COMMA_LEN (".avx512_4fmaps"), PROCESSOR_UNKNOWN,
1169 CPU_AVX512_4FMAPS_FLAGS, 0 },
1170 { STRING_COMMA_LEN (".avx512_4vnniw"), PROCESSOR_UNKNOWN,
1171 CPU_AVX512_4VNNIW_FLAGS, 0 },
1172 { STRING_COMMA_LEN (".avx512_vpopcntdq"), PROCESSOR_UNKNOWN,
1173 CPU_AVX512_VPOPCNTDQ_FLAGS, 0 },
1174 { STRING_COMMA_LEN (".avx512_vbmi2"), PROCESSOR_UNKNOWN,
1175 CPU_AVX512_VBMI2_FLAGS, 0 },
1176 { STRING_COMMA_LEN (".avx512_vnni"), PROCESSOR_UNKNOWN,
1177 CPU_AVX512_VNNI_FLAGS, 0 },
1178 { STRING_COMMA_LEN (".avx512_bitalg"), PROCESSOR_UNKNOWN,
1179 CPU_AVX512_BITALG_FLAGS, 0 },
1180 { STRING_COMMA_LEN (".clzero"), PROCESSOR_UNKNOWN,
1181 CPU_CLZERO_FLAGS, 0 },
1182 { STRING_COMMA_LEN (".mwaitx"), PROCESSOR_UNKNOWN,
1183 CPU_MWAITX_FLAGS, 0 },
1184 { STRING_COMMA_LEN (".ospke"), PROCESSOR_UNKNOWN,
1185 CPU_OSPKE_FLAGS, 0 },
1186 { STRING_COMMA_LEN (".rdpid"), PROCESSOR_UNKNOWN,
1187 CPU_RDPID_FLAGS, 0 },
1188 { STRING_COMMA_LEN (".ptwrite"), PROCESSOR_UNKNOWN,
1189 CPU_PTWRITE_FLAGS, 0 },
1190 { STRING_COMMA_LEN (".ibt"), PROCESSOR_UNKNOWN,
1192 { STRING_COMMA_LEN (".shstk"), PROCESSOR_UNKNOWN,
1193 CPU_SHSTK_FLAGS, 0 },
1194 { STRING_COMMA_LEN (".gfni"), PROCESSOR_UNKNOWN,
1195 CPU_GFNI_FLAGS, 0 },
1196 { STRING_COMMA_LEN (".vaes"), PROCESSOR_UNKNOWN,
1197 CPU_VAES_FLAGS, 0 },
1198 { STRING_COMMA_LEN (".vpclmulqdq"), PROCESSOR_UNKNOWN,
1199 CPU_VPCLMULQDQ_FLAGS, 0 },
1200 { STRING_COMMA_LEN (".wbnoinvd"), PROCESSOR_UNKNOWN,
1201 CPU_WBNOINVD_FLAGS, 0 },
1202 { STRING_COMMA_LEN (".pconfig"), PROCESSOR_UNKNOWN,
1203 CPU_PCONFIG_FLAGS, 0 },
1204 { STRING_COMMA_LEN (".waitpkg"), PROCESSOR_UNKNOWN,
1205 CPU_WAITPKG_FLAGS, 0 },
1206 { STRING_COMMA_LEN (".cldemote"), PROCESSOR_UNKNOWN,
1207 CPU_CLDEMOTE_FLAGS, 0 },
1208 { STRING_COMMA_LEN (".amx_int8"), PROCESSOR_UNKNOWN,
1209 CPU_AMX_INT8_FLAGS, 0 },
1210 { STRING_COMMA_LEN (".amx_bf16"), PROCESSOR_UNKNOWN,
1211 CPU_AMX_BF16_FLAGS, 0 },
1212 { STRING_COMMA_LEN (".amx_tile"), PROCESSOR_UNKNOWN,
1213 CPU_AMX_TILE_FLAGS, 0 },
1214 { STRING_COMMA_LEN (".movdiri"), PROCESSOR_UNKNOWN,
1215 CPU_MOVDIRI_FLAGS, 0 },
1216 { STRING_COMMA_LEN (".movdir64b"), PROCESSOR_UNKNOWN,
1217 CPU_MOVDIR64B_FLAGS, 0 },
1218 { STRING_COMMA_LEN (".avx512_bf16"), PROCESSOR_UNKNOWN,
1219 CPU_AVX512_BF16_FLAGS, 0 },
1220 { STRING_COMMA_LEN (".avx512_vp2intersect"), PROCESSOR_UNKNOWN,
1221 CPU_AVX512_VP2INTERSECT_FLAGS, 0 },
1222 { STRING_COMMA_LEN (".enqcmd"), PROCESSOR_UNKNOWN,
1223 CPU_ENQCMD_FLAGS, 0 },
1224 { STRING_COMMA_LEN (".serialize"), PROCESSOR_UNKNOWN,
1225 CPU_SERIALIZE_FLAGS, 0 },
1226 { STRING_COMMA_LEN (".rdpru"), PROCESSOR_UNKNOWN,
1227 CPU_RDPRU_FLAGS, 0 },
1228 { STRING_COMMA_LEN (".mcommit"), PROCESSOR_UNKNOWN,
1229 CPU_MCOMMIT_FLAGS, 0 },
1230 { STRING_COMMA_LEN (".sev_es"), PROCESSOR_UNKNOWN,
1231 CPU_SEV_ES_FLAGS, 0 },
1232 { STRING_COMMA_LEN (".tsxldtrk"), PROCESSOR_UNKNOWN,
1233 CPU_TSXLDTRK_FLAGS, 0 },
1236 static const noarch_entry cpu_noarch[] =
1238 { STRING_COMMA_LEN ("no87"), CPU_ANY_X87_FLAGS },
1239 { STRING_COMMA_LEN ("no287"), CPU_ANY_287_FLAGS },
1240 { STRING_COMMA_LEN ("no387"), CPU_ANY_387_FLAGS },
1241 { STRING_COMMA_LEN ("no687"), CPU_ANY_687_FLAGS },
1242 { STRING_COMMA_LEN ("nocmov"), CPU_ANY_CMOV_FLAGS },
1243 { STRING_COMMA_LEN ("nofxsr"), CPU_ANY_FXSR_FLAGS },
1244 { STRING_COMMA_LEN ("nommx"), CPU_ANY_MMX_FLAGS },
1245 { STRING_COMMA_LEN ("nosse"), CPU_ANY_SSE_FLAGS },
1246 { STRING_COMMA_LEN ("nosse2"), CPU_ANY_SSE2_FLAGS },
1247 { STRING_COMMA_LEN ("nosse3"), CPU_ANY_SSE3_FLAGS },
1248 { STRING_COMMA_LEN ("nosse4a"), CPU_ANY_SSE4A_FLAGS },
1249 { STRING_COMMA_LEN ("nossse3"), CPU_ANY_SSSE3_FLAGS },
1250 { STRING_COMMA_LEN ("nosse4.1"), CPU_ANY_SSE4_1_FLAGS },
1251 { STRING_COMMA_LEN ("nosse4.2"), CPU_ANY_SSE4_2_FLAGS },
1252 { STRING_COMMA_LEN ("nosse4"), CPU_ANY_SSE4_1_FLAGS },
1253 { STRING_COMMA_LEN ("noavx"), CPU_ANY_AVX_FLAGS },
1254 { STRING_COMMA_LEN ("noavx2"), CPU_ANY_AVX2_FLAGS },
1255 { STRING_COMMA_LEN ("noavx512f"), CPU_ANY_AVX512F_FLAGS },
1256 { STRING_COMMA_LEN ("noavx512cd"), CPU_ANY_AVX512CD_FLAGS },
1257 { STRING_COMMA_LEN ("noavx512er"), CPU_ANY_AVX512ER_FLAGS },
1258 { STRING_COMMA_LEN ("noavx512pf"), CPU_ANY_AVX512PF_FLAGS },
1259 { STRING_COMMA_LEN ("noavx512dq"), CPU_ANY_AVX512DQ_FLAGS },
1260 { STRING_COMMA_LEN ("noavx512bw"), CPU_ANY_AVX512BW_FLAGS },
1261 { STRING_COMMA_LEN ("noavx512vl"), CPU_ANY_AVX512VL_FLAGS },
1262 { STRING_COMMA_LEN ("noavx512ifma"), CPU_ANY_AVX512IFMA_FLAGS },
1263 { STRING_COMMA_LEN ("noavx512vbmi"), CPU_ANY_AVX512VBMI_FLAGS },
1264 { STRING_COMMA_LEN ("noavx512_4fmaps"), CPU_ANY_AVX512_4FMAPS_FLAGS },
1265 { STRING_COMMA_LEN ("noavx512_4vnniw"), CPU_ANY_AVX512_4VNNIW_FLAGS },
1266 { STRING_COMMA_LEN ("noavx512_vpopcntdq"), CPU_ANY_AVX512_VPOPCNTDQ_FLAGS },
1267 { STRING_COMMA_LEN ("noavx512_vbmi2"), CPU_ANY_AVX512_VBMI2_FLAGS },
1268 { STRING_COMMA_LEN ("noavx512_vnni"), CPU_ANY_AVX512_VNNI_FLAGS },
1269 { STRING_COMMA_LEN ("noavx512_bitalg"), CPU_ANY_AVX512_BITALG_FLAGS },
1270 { STRING_COMMA_LEN ("noibt"), CPU_ANY_IBT_FLAGS },
1271 { STRING_COMMA_LEN ("noshstk"), CPU_ANY_SHSTK_FLAGS },
1272 { STRING_COMMA_LEN ("noamx_int8"), CPU_ANY_AMX_INT8_FLAGS },
1273 { STRING_COMMA_LEN ("noamx_bf16"), CPU_ANY_AMX_BF16_FLAGS },
1274 { STRING_COMMA_LEN ("noamx_tile"), CPU_ANY_AMX_TILE_FLAGS },
1275 { STRING_COMMA_LEN ("nomovdiri"), CPU_ANY_MOVDIRI_FLAGS },
1276 { STRING_COMMA_LEN ("nomovdir64b"), CPU_ANY_MOVDIR64B_FLAGS },
1277 { STRING_COMMA_LEN ("noavx512_bf16"), CPU_ANY_AVX512_BF16_FLAGS },
1278 { STRING_COMMA_LEN ("noavx512_vp2intersect"),
1279 CPU_ANY_AVX512_VP2INTERSECT_FLAGS },
1280 { STRING_COMMA_LEN ("noenqcmd"), CPU_ANY_ENQCMD_FLAGS },
1281 { STRING_COMMA_LEN ("noserialize"), CPU_ANY_SERIALIZE_FLAGS },
1282 { STRING_COMMA_LEN ("notsxldtrk"), CPU_ANY_TSXLDTRK_FLAGS },
1286 /* Like s_lcomm_internal in gas/read.c but the alignment string
1287 is allowed to be optional. */
1290 pe_lcomm_internal (int needs_align, symbolS *symbolP, addressT size)
1297 && *input_line_pointer == ',')
1299 align = parse_align (needs_align - 1);
1301 if (align == (addressT) -1)
1316 bss_alloc (symbolP, size, align);
1321 pe_lcomm (int needs_align)
1323 s_comm_internal (needs_align * 2, pe_lcomm_internal);
1327 const pseudo_typeS md_pseudo_table[] =
1329 #if !defined(OBJ_AOUT) && !defined(USE_ALIGN_PTWO)
1330 {"align", s_align_bytes, 0},
1332 {"align", s_align_ptwo, 0},
1334 {"arch", set_cpu_arch, 0},
1338 {"lcomm", pe_lcomm, 1},
1340 {"ffloat", float_cons, 'f'},
1341 {"dfloat", float_cons, 'd'},
1342 {"tfloat", float_cons, 'x'},
1344 {"slong", signed_cons, 4},
1345 {"noopt", s_ignore, 0},
1346 {"optim", s_ignore, 0},
1347 {"code16gcc", set_16bit_gcc_code_flag, CODE_16BIT},
1348 {"code16", set_code_flag, CODE_16BIT},
1349 {"code32", set_code_flag, CODE_32BIT},
1351 {"code64", set_code_flag, CODE_64BIT},
1353 {"intel_syntax", set_intel_syntax, 1},
1354 {"att_syntax", set_intel_syntax, 0},
1355 {"intel_mnemonic", set_intel_mnemonic, 1},
1356 {"att_mnemonic", set_intel_mnemonic, 0},
1357 {"allow_index_reg", set_allow_index_reg, 1},
1358 {"disallow_index_reg", set_allow_index_reg, 0},
1359 {"sse_check", set_check, 0},
1360 {"operand_check", set_check, 1},
1361 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
1362 {"largecomm", handle_large_common, 0},
1364 {"file", dwarf2_directive_file, 0},
1365 {"loc", dwarf2_directive_loc, 0},
1366 {"loc_mark_labels", dwarf2_directive_loc_mark_labels, 0},
1369 {"secrel32", pe_directive_secrel, 0},
1374 /* For interface with expression (). */
1375 extern char *input_line_pointer;
1377 /* Hash table for instruction mnemonic lookup. */
1378 static struct hash_control *op_hash;
1380 /* Hash table for register lookup. */
1381 static struct hash_control *reg_hash;
1383 /* Various efficient no-op patterns for aligning code labels.
1384 Note: Don't try to assemble the instructions in the comments.
1385 0L and 0w are not legal. */
1386 static const unsigned char f32_1[] =
1388 static const unsigned char f32_2[] =
1389 {0x66,0x90}; /* xchg %ax,%ax */
1390 static const unsigned char f32_3[] =
1391 {0x8d,0x76,0x00}; /* leal 0(%esi),%esi */
1392 static const unsigned char f32_4[] =
1393 {0x8d,0x74,0x26,0x00}; /* leal 0(%esi,1),%esi */
1394 static const unsigned char f32_6[] =
1395 {0x8d,0xb6,0x00,0x00,0x00,0x00}; /* leal 0L(%esi),%esi */
1396 static const unsigned char f32_7[] =
1397 {0x8d,0xb4,0x26,0x00,0x00,0x00,0x00}; /* leal 0L(%esi,1),%esi */
1398 static const unsigned char f16_3[] =
1399 {0x8d,0x74,0x00}; /* lea 0(%si),%si */
1400 static const unsigned char f16_4[] =
1401 {0x8d,0xb4,0x00,0x00}; /* lea 0W(%si),%si */
1402 static const unsigned char jump_disp8[] =
1403 {0xeb}; /* jmp disp8 */
1404 static const unsigned char jump32_disp32[] =
1405 {0xe9}; /* jmp disp32 */
1406 static const unsigned char jump16_disp32[] =
1407 {0x66,0xe9}; /* jmp disp32 */
1408 /* 32-bit NOPs patterns. */
1409 static const unsigned char *const f32_patt[] = {
1410 f32_1, f32_2, f32_3, f32_4, NULL, f32_6, f32_7
1412 /* 16-bit NOPs patterns. */
1413 static const unsigned char *const f16_patt[] = {
1414 f32_1, f32_2, f16_3, f16_4
1416 /* nopl (%[re]ax) */
1417 static const unsigned char alt_3[] =
1419 /* nopl 0(%[re]ax) */
1420 static const unsigned char alt_4[] =
1421 {0x0f,0x1f,0x40,0x00};
1422 /* nopl 0(%[re]ax,%[re]ax,1) */
1423 static const unsigned char alt_5[] =
1424 {0x0f,0x1f,0x44,0x00,0x00};
1425 /* nopw 0(%[re]ax,%[re]ax,1) */
1426 static const unsigned char alt_6[] =
1427 {0x66,0x0f,0x1f,0x44,0x00,0x00};
1428 /* nopl 0L(%[re]ax) */
1429 static const unsigned char alt_7[] =
1430 {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00};
1431 /* nopl 0L(%[re]ax,%[re]ax,1) */
1432 static const unsigned char alt_8[] =
1433 {0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1434 /* nopw 0L(%[re]ax,%[re]ax,1) */
1435 static const unsigned char alt_9[] =
1436 {0x66,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1437 /* nopw %cs:0L(%[re]ax,%[re]ax,1) */
1438 static const unsigned char alt_10[] =
1439 {0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1440 /* data16 nopw %cs:0L(%eax,%eax,1) */
1441 static const unsigned char alt_11[] =
1442 {0x66,0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00};
1443 /* 32-bit and 64-bit NOPs patterns. */
1444 static const unsigned char *const alt_patt[] = {
1445 f32_1, f32_2, alt_3, alt_4, alt_5, alt_6, alt_7, alt_8,
1446 alt_9, alt_10, alt_11
1449 /* Genenerate COUNT bytes of NOPs to WHERE from PATT with the maximum
1450 size of a single NOP instruction MAX_SINGLE_NOP_SIZE. */
1453 i386_output_nops (char *where, const unsigned char *const *patt,
1454 int count, int max_single_nop_size)
1457 /* Place the longer NOP first. */
1460 const unsigned char *nops;
1462 if (max_single_nop_size < 1)
1464 as_fatal (_("i386_output_nops called to generate nops of at most %d bytes!"),
1465 max_single_nop_size);
1469 nops = patt[max_single_nop_size - 1];
1471 /* Use the smaller one if the requsted one isn't available. */
1474 max_single_nop_size--;
1475 nops = patt[max_single_nop_size - 1];
1478 last = count % max_single_nop_size;
1481 for (offset = 0; offset < count; offset += max_single_nop_size)
1482 memcpy (where + offset, nops, max_single_nop_size);
1486 nops = patt[last - 1];
1489 /* Use the smaller one plus one-byte NOP if the needed one
1492 nops = patt[last - 1];
1493 memcpy (where + offset, nops, last);
1494 where[offset + last] = *patt[0];
1497 memcpy (where + offset, nops, last);
1502 fits_in_imm7 (offsetT num)
1504 return (num & 0x7f) == num;
1508 fits_in_imm31 (offsetT num)
1510 return (num & 0x7fffffff) == num;
1513 /* Genenerate COUNT bytes of NOPs to WHERE with the maximum size of a
1514 single NOP instruction LIMIT. */
1517 i386_generate_nops (fragS *fragP, char *where, offsetT count, int limit)
1519 const unsigned char *const *patt = NULL;
1520 int max_single_nop_size;
1521 /* Maximum number of NOPs before switching to jump over NOPs. */
1522 int max_number_of_nops;
1524 switch (fragP->fr_type)
1529 case rs_machine_dependent:
1530 /* Allow NOP padding for jumps and calls. */
1531 if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PADDING
1532 || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == FUSED_JCC_PADDING)
1539 /* We need to decide which NOP sequence to use for 32bit and
1540 64bit. When -mtune= is used:
1542 1. For PROCESSOR_I386, PROCESSOR_I486, PROCESSOR_PENTIUM and
1543 PROCESSOR_GENERIC32, f32_patt will be used.
1544 2. For the rest, alt_patt will be used.
1546 When -mtune= isn't used, alt_patt will be used if
1547 cpu_arch_isa_flags has CpuNop. Otherwise, f32_patt will
1550 When -march= or .arch is used, we can't use anything beyond
1551 cpu_arch_isa_flags. */
1553 if (flag_code == CODE_16BIT)
1556 max_single_nop_size = sizeof (f16_patt) / sizeof (f16_patt[0]);
1557 /* Limit number of NOPs to 2 in 16-bit mode. */
1558 max_number_of_nops = 2;
1562 if (fragP->tc_frag_data.isa == PROCESSOR_UNKNOWN)
1564 /* PROCESSOR_UNKNOWN means that all ISAs may be used. */
1565 switch (cpu_arch_tune)
1567 case PROCESSOR_UNKNOWN:
1568 /* We use cpu_arch_isa_flags to check if we SHOULD
1569 optimize with nops. */
1570 if (fragP->tc_frag_data.isa_flags.bitfield.cpunop)
1575 case PROCESSOR_PENTIUM4:
1576 case PROCESSOR_NOCONA:
1577 case PROCESSOR_CORE:
1578 case PROCESSOR_CORE2:
1579 case PROCESSOR_COREI7:
1580 case PROCESSOR_L1OM:
1581 case PROCESSOR_K1OM:
1582 case PROCESSOR_GENERIC64:
1584 case PROCESSOR_ATHLON:
1586 case PROCESSOR_AMDFAM10:
1588 case PROCESSOR_ZNVER:
1592 case PROCESSOR_I386:
1593 case PROCESSOR_I486:
1594 case PROCESSOR_PENTIUM:
1595 case PROCESSOR_PENTIUMPRO:
1596 case PROCESSOR_IAMCU:
1597 case PROCESSOR_GENERIC32:
1604 switch (fragP->tc_frag_data.tune)
1606 case PROCESSOR_UNKNOWN:
1607 /* When cpu_arch_isa is set, cpu_arch_tune shouldn't be
1608 PROCESSOR_UNKNOWN. */
1612 case PROCESSOR_I386:
1613 case PROCESSOR_I486:
1614 case PROCESSOR_PENTIUM:
1615 case PROCESSOR_IAMCU:
1617 case PROCESSOR_ATHLON:
1619 case PROCESSOR_AMDFAM10:
1621 case PROCESSOR_ZNVER:
1623 case PROCESSOR_GENERIC32:
1624 /* We use cpu_arch_isa_flags to check if we CAN optimize
1626 if (fragP->tc_frag_data.isa_flags.bitfield.cpunop)
1631 case PROCESSOR_PENTIUMPRO:
1632 case PROCESSOR_PENTIUM4:
1633 case PROCESSOR_NOCONA:
1634 case PROCESSOR_CORE:
1635 case PROCESSOR_CORE2:
1636 case PROCESSOR_COREI7:
1637 case PROCESSOR_L1OM:
1638 case PROCESSOR_K1OM:
1639 if (fragP->tc_frag_data.isa_flags.bitfield.cpunop)
1644 case PROCESSOR_GENERIC64:
1650 if (patt == f32_patt)
1652 max_single_nop_size = sizeof (f32_patt) / sizeof (f32_patt[0]);
1653 /* Limit number of NOPs to 2 for older processors. */
1654 max_number_of_nops = 2;
1658 max_single_nop_size = sizeof (alt_patt) / sizeof (alt_patt[0]);
1659 /* Limit number of NOPs to 7 for newer processors. */
1660 max_number_of_nops = 7;
1665 limit = max_single_nop_size;
1667 if (fragP->fr_type == rs_fill_nop)
1669 /* Output NOPs for .nop directive. */
1670 if (limit > max_single_nop_size)
1672 as_bad_where (fragP->fr_file, fragP->fr_line,
1673 _("invalid single nop size: %d "
1674 "(expect within [0, %d])"),
1675 limit, max_single_nop_size);
1679 else if (fragP->fr_type != rs_machine_dependent)
1680 fragP->fr_var = count;
1682 if ((count / max_single_nop_size) > max_number_of_nops)
1684 /* Generate jump over NOPs. */
1685 offsetT disp = count - 2;
1686 if (fits_in_imm7 (disp))
1688 /* Use "jmp disp8" if possible. */
1690 where[0] = jump_disp8[0];
1696 unsigned int size_of_jump;
1698 if (flag_code == CODE_16BIT)
1700 where[0] = jump16_disp32[0];
1701 where[1] = jump16_disp32[1];
1706 where[0] = jump32_disp32[0];
1710 count -= size_of_jump + 4;
1711 if (!fits_in_imm31 (count))
1713 as_bad_where (fragP->fr_file, fragP->fr_line,
1714 _("jump over nop padding out of range"));
1718 md_number_to_chars (where + size_of_jump, count, 4);
1719 where += size_of_jump + 4;
1723 /* Generate multiple NOPs. */
1724 i386_output_nops (where, patt, count, limit);
1728 operand_type_all_zero (const union i386_operand_type *x)
1730 switch (ARRAY_SIZE(x->array))
1741 return !x->array[0];
1748 operand_type_set (union i386_operand_type *x, unsigned int v)
1750 switch (ARRAY_SIZE(x->array))
1766 x->bitfield.class = ClassNone;
1767 x->bitfield.instance = InstanceNone;
1771 operand_type_equal (const union i386_operand_type *x,
1772 const union i386_operand_type *y)
1774 switch (ARRAY_SIZE(x->array))
1777 if (x->array[2] != y->array[2])
1781 if (x->array[1] != y->array[1])
1785 return x->array[0] == y->array[0];
1793 cpu_flags_all_zero (const union i386_cpu_flags *x)
1795 switch (ARRAY_SIZE(x->array))
1810 return !x->array[0];
1817 cpu_flags_equal (const union i386_cpu_flags *x,
1818 const union i386_cpu_flags *y)
1820 switch (ARRAY_SIZE(x->array))
1823 if (x->array[3] != y->array[3])
1827 if (x->array[2] != y->array[2])
1831 if (x->array[1] != y->array[1])
1835 return x->array[0] == y->array[0];
1843 cpu_flags_check_cpu64 (i386_cpu_flags f)
1845 return !((flag_code == CODE_64BIT && f.bitfield.cpuno64)
1846 || (flag_code != CODE_64BIT && f.bitfield.cpu64));
1849 static INLINE i386_cpu_flags
1850 cpu_flags_and (i386_cpu_flags x, i386_cpu_flags y)
1852 switch (ARRAY_SIZE (x.array))
1855 x.array [3] &= y.array [3];
1858 x.array [2] &= y.array [2];
1861 x.array [1] &= y.array [1];
1864 x.array [0] &= y.array [0];
1872 static INLINE i386_cpu_flags
1873 cpu_flags_or (i386_cpu_flags x, i386_cpu_flags y)
1875 switch (ARRAY_SIZE (x.array))
1878 x.array [3] |= y.array [3];
1881 x.array [2] |= y.array [2];
1884 x.array [1] |= y.array [1];
1887 x.array [0] |= y.array [0];
1895 static INLINE i386_cpu_flags
1896 cpu_flags_and_not (i386_cpu_flags x, i386_cpu_flags y)
1898 switch (ARRAY_SIZE (x.array))
1901 x.array [3] &= ~y.array [3];
1904 x.array [2] &= ~y.array [2];
1907 x.array [1] &= ~y.array [1];
1910 x.array [0] &= ~y.array [0];
1918 static const i386_cpu_flags avx512 = CPU_ANY_AVX512F_FLAGS;
1920 #define CPU_FLAGS_ARCH_MATCH 0x1
1921 #define CPU_FLAGS_64BIT_MATCH 0x2
1923 #define CPU_FLAGS_PERFECT_MATCH \
1924 (CPU_FLAGS_ARCH_MATCH | CPU_FLAGS_64BIT_MATCH)
1926 /* Return CPU flags match bits. */
1929 cpu_flags_match (const insn_template *t)
1931 i386_cpu_flags x = t->cpu_flags;
1932 int match = cpu_flags_check_cpu64 (x) ? CPU_FLAGS_64BIT_MATCH : 0;
1934 x.bitfield.cpu64 = 0;
1935 x.bitfield.cpuno64 = 0;
1937 if (cpu_flags_all_zero (&x))
1939 /* This instruction is available on all archs. */
1940 match |= CPU_FLAGS_ARCH_MATCH;
1944 /* This instruction is available only on some archs. */
1945 i386_cpu_flags cpu = cpu_arch_flags;
1947 /* AVX512VL is no standalone feature - match it and then strip it. */
1948 if (x.bitfield.cpuavx512vl && !cpu.bitfield.cpuavx512vl)
1950 x.bitfield.cpuavx512vl = 0;
1952 cpu = cpu_flags_and (x, cpu);
1953 if (!cpu_flags_all_zero (&cpu))
1955 if (x.bitfield.cpuavx)
1957 /* We need to check a few extra flags with AVX. */
1958 if (cpu.bitfield.cpuavx
1959 && (!t->opcode_modifier.sse2avx
1960 || (sse2avx && !i.prefix[DATA_PREFIX]))
1961 && (!x.bitfield.cpuaes || cpu.bitfield.cpuaes)
1962 && (!x.bitfield.cpugfni || cpu.bitfield.cpugfni)
1963 && (!x.bitfield.cpupclmul || cpu.bitfield.cpupclmul))
1964 match |= CPU_FLAGS_ARCH_MATCH;
1966 else if (x.bitfield.cpuavx512f)
1968 /* We need to check a few extra flags with AVX512F. */
1969 if (cpu.bitfield.cpuavx512f
1970 && (!x.bitfield.cpugfni || cpu.bitfield.cpugfni)
1971 && (!x.bitfield.cpuvaes || cpu.bitfield.cpuvaes)
1972 && (!x.bitfield.cpuvpclmulqdq || cpu.bitfield.cpuvpclmulqdq))
1973 match |= CPU_FLAGS_ARCH_MATCH;
1976 match |= CPU_FLAGS_ARCH_MATCH;
1982 static INLINE i386_operand_type
1983 operand_type_and (i386_operand_type x, i386_operand_type y)
1985 if (x.bitfield.class != y.bitfield.class)
1986 x.bitfield.class = ClassNone;
1987 if (x.bitfield.instance != y.bitfield.instance)
1988 x.bitfield.instance = InstanceNone;
1990 switch (ARRAY_SIZE (x.array))
1993 x.array [2] &= y.array [2];
1996 x.array [1] &= y.array [1];
1999 x.array [0] &= y.array [0];
2007 static INLINE i386_operand_type
2008 operand_type_and_not (i386_operand_type x, i386_operand_type y)
2010 gas_assert (y.bitfield.class == ClassNone);
2011 gas_assert (y.bitfield.instance == InstanceNone);
2013 switch (ARRAY_SIZE (x.array))
2016 x.array [2] &= ~y.array [2];
2019 x.array [1] &= ~y.array [1];
2022 x.array [0] &= ~y.array [0];
2030 static INLINE i386_operand_type
2031 operand_type_or (i386_operand_type x, i386_operand_type y)
2033 gas_assert (x.bitfield.class == ClassNone ||
2034 y.bitfield.class == ClassNone ||
2035 x.bitfield.class == y.bitfield.class);
2036 gas_assert (x.bitfield.instance == InstanceNone ||
2037 y.bitfield.instance == InstanceNone ||
2038 x.bitfield.instance == y.bitfield.instance);
2040 switch (ARRAY_SIZE (x.array))
2043 x.array [2] |= y.array [2];
2046 x.array [1] |= y.array [1];
2049 x.array [0] |= y.array [0];
2057 static INLINE i386_operand_type
2058 operand_type_xor (i386_operand_type x, i386_operand_type y)
2060 gas_assert (y.bitfield.class == ClassNone);
2061 gas_assert (y.bitfield.instance == InstanceNone);
2063 switch (ARRAY_SIZE (x.array))
2066 x.array [2] ^= y.array [2];
2069 x.array [1] ^= y.array [1];
2072 x.array [0] ^= y.array [0];
2080 static const i386_operand_type disp16 = OPERAND_TYPE_DISP16;
2081 static const i386_operand_type disp32 = OPERAND_TYPE_DISP32;
2082 static const i386_operand_type disp32s = OPERAND_TYPE_DISP32S;
2083 static const i386_operand_type disp16_32 = OPERAND_TYPE_DISP16_32;
2084 static const i386_operand_type anydisp = OPERAND_TYPE_ANYDISP;
2085 static const i386_operand_type anyimm = OPERAND_TYPE_ANYIMM;
2086 static const i386_operand_type regxmm = OPERAND_TYPE_REGXMM;
2087 static const i386_operand_type regmask = OPERAND_TYPE_REGMASK;
2088 static const i386_operand_type imm8 = OPERAND_TYPE_IMM8;
2089 static const i386_operand_type imm8s = OPERAND_TYPE_IMM8S;
2090 static const i386_operand_type imm16 = OPERAND_TYPE_IMM16;
2091 static const i386_operand_type imm32 = OPERAND_TYPE_IMM32;
2092 static const i386_operand_type imm32s = OPERAND_TYPE_IMM32S;
2093 static const i386_operand_type imm64 = OPERAND_TYPE_IMM64;
2094 static const i386_operand_type imm16_32 = OPERAND_TYPE_IMM16_32;
2095 static const i386_operand_type imm16_32s = OPERAND_TYPE_IMM16_32S;
2096 static const i386_operand_type imm16_32_32s = OPERAND_TYPE_IMM16_32_32S;
2107 operand_type_check (i386_operand_type t, enum operand_type c)
2112 return t.bitfield.class == Reg;
2115 return (t.bitfield.imm8
2119 || t.bitfield.imm32s
2120 || t.bitfield.imm64);
2123 return (t.bitfield.disp8
2124 || t.bitfield.disp16
2125 || t.bitfield.disp32
2126 || t.bitfield.disp32s
2127 || t.bitfield.disp64);
2130 return (t.bitfield.disp8
2131 || t.bitfield.disp16
2132 || t.bitfield.disp32
2133 || t.bitfield.disp32s
2134 || t.bitfield.disp64
2135 || t.bitfield.baseindex);
2144 /* Return 1 if there is no conflict in 8bit/16bit/32bit/64bit/80bit size
2145 between operand GIVEN and opeand WANTED for instruction template T. */
2148 match_operand_size (const insn_template *t, unsigned int wanted,
2151 return !((i.types[given].bitfield.byte
2152 && !t->operand_types[wanted].bitfield.byte)
2153 || (i.types[given].bitfield.word
2154 && !t->operand_types[wanted].bitfield.word)
2155 || (i.types[given].bitfield.dword
2156 && !t->operand_types[wanted].bitfield.dword)
2157 || (i.types[given].bitfield.qword
2158 && !t->operand_types[wanted].bitfield.qword)
2159 || (i.types[given].bitfield.tbyte
2160 && !t->operand_types[wanted].bitfield.tbyte));
2163 /* Return 1 if there is no conflict in SIMD register between operand
2164 GIVEN and opeand WANTED for instruction template T. */
2167 match_simd_size (const insn_template *t, unsigned int wanted,
2170 return !((i.types[given].bitfield.xmmword
2171 && !t->operand_types[wanted].bitfield.xmmword)
2172 || (i.types[given].bitfield.ymmword
2173 && !t->operand_types[wanted].bitfield.ymmword)
2174 || (i.types[given].bitfield.zmmword
2175 && !t->operand_types[wanted].bitfield.zmmword)
2176 || (i.types[given].bitfield.tmmword
2177 && !t->operand_types[wanted].bitfield.tmmword));
2180 /* Return 1 if there is no conflict in any size between operand GIVEN
2181 and opeand WANTED for instruction template T. */
2184 match_mem_size (const insn_template *t, unsigned int wanted,
2187 return (match_operand_size (t, wanted, given)
2188 && !((i.types[given].bitfield.unspecified
2190 && !t->operand_types[wanted].bitfield.unspecified)
2191 || (i.types[given].bitfield.fword
2192 && !t->operand_types[wanted].bitfield.fword)
2193 /* For scalar opcode templates to allow register and memory
2194 operands at the same time, some special casing is needed
2195 here. Also for v{,p}broadcast*, {,v}pmov{s,z}*, and
2196 down-conversion vpmov*. */
2197 || ((t->operand_types[wanted].bitfield.class == RegSIMD
2198 && t->operand_types[wanted].bitfield.byte
2199 + t->operand_types[wanted].bitfield.word
2200 + t->operand_types[wanted].bitfield.dword
2201 + t->operand_types[wanted].bitfield.qword
2202 > !!t->opcode_modifier.broadcast)
2203 ? (i.types[given].bitfield.xmmword
2204 || i.types[given].bitfield.ymmword
2205 || i.types[given].bitfield.zmmword)
2206 : !match_simd_size(t, wanted, given))));
2209 /* Return value has MATCH_STRAIGHT set if there is no size conflict on any
2210 operands for instruction template T, and it has MATCH_REVERSE set if there
2211 is no size conflict on any operands for the template with operands reversed
2212 (and the template allows for reversing in the first place). */
2214 #define MATCH_STRAIGHT 1
2215 #define MATCH_REVERSE 2
2217 static INLINE unsigned int
2218 operand_size_match (const insn_template *t)
2220 unsigned int j, match = MATCH_STRAIGHT;
2222 /* Don't check non-absolute jump instructions. */
2223 if (t->opcode_modifier.jump
2224 && t->opcode_modifier.jump != JUMP_ABSOLUTE)
2227 /* Check memory and accumulator operand size. */
2228 for (j = 0; j < i.operands; j++)
2230 if (i.types[j].bitfield.class != Reg
2231 && i.types[j].bitfield.class != RegSIMD
2232 && t->opcode_modifier.anysize)
2235 if (t->operand_types[j].bitfield.class == Reg
2236 && !match_operand_size (t, j, j))
2242 if (t->operand_types[j].bitfield.class == RegSIMD
2243 && !match_simd_size (t, j, j))
2249 if (t->operand_types[j].bitfield.instance == Accum
2250 && (!match_operand_size (t, j, j) || !match_simd_size (t, j, j)))
2256 if ((i.flags[j] & Operand_Mem) && !match_mem_size (t, j, j))
2263 if (!t->opcode_modifier.d)
2267 i.error = operand_size_mismatch;
2271 /* Check reverse. */
2272 gas_assert (i.operands >= 2 && i.operands <= 3);
2274 for (j = 0; j < i.operands; j++)
2276 unsigned int given = i.operands - j - 1;
2278 if (t->operand_types[j].bitfield.class == Reg
2279 && !match_operand_size (t, j, given))
2282 if (t->operand_types[j].bitfield.class == RegSIMD
2283 && !match_simd_size (t, j, given))
2286 if (t->operand_types[j].bitfield.instance == Accum
2287 && (!match_operand_size (t, j, given)
2288 || !match_simd_size (t, j, given)))
2291 if ((i.flags[given] & Operand_Mem) && !match_mem_size (t, j, given))
2295 return match | MATCH_REVERSE;
2299 operand_type_match (i386_operand_type overlap,
2300 i386_operand_type given)
2302 i386_operand_type temp = overlap;
2304 temp.bitfield.unspecified = 0;
2305 temp.bitfield.byte = 0;
2306 temp.bitfield.word = 0;
2307 temp.bitfield.dword = 0;
2308 temp.bitfield.fword = 0;
2309 temp.bitfield.qword = 0;
2310 temp.bitfield.tbyte = 0;
2311 temp.bitfield.xmmword = 0;
2312 temp.bitfield.ymmword = 0;
2313 temp.bitfield.zmmword = 0;
2314 temp.bitfield.tmmword = 0;
2315 if (operand_type_all_zero (&temp))
2318 if (given.bitfield.baseindex == overlap.bitfield.baseindex)
2322 i.error = operand_type_mismatch;
2326 /* If given types g0 and g1 are registers they must be of the same type
2327 unless the expected operand type register overlap is null.
2328 Some Intel syntax memory operand size checking also happens here. */
2331 operand_type_register_match (i386_operand_type g0,
2332 i386_operand_type t0,
2333 i386_operand_type g1,
2334 i386_operand_type t1)
2336 if (g0.bitfield.class != Reg
2337 && g0.bitfield.class != RegSIMD
2338 && (!operand_type_check (g0, anymem)
2339 || g0.bitfield.unspecified
2340 || (t0.bitfield.class != Reg
2341 && t0.bitfield.class != RegSIMD)))
2344 if (g1.bitfield.class != Reg
2345 && g1.bitfield.class != RegSIMD
2346 && (!operand_type_check (g1, anymem)
2347 || g1.bitfield.unspecified
2348 || (t1.bitfield.class != Reg
2349 && t1.bitfield.class != RegSIMD)))
2352 if (g0.bitfield.byte == g1.bitfield.byte
2353 && g0.bitfield.word == g1.bitfield.word
2354 && g0.bitfield.dword == g1.bitfield.dword
2355 && g0.bitfield.qword == g1.bitfield.qword
2356 && g0.bitfield.xmmword == g1.bitfield.xmmword
2357 && g0.bitfield.ymmword == g1.bitfield.ymmword
2358 && g0.bitfield.zmmword == g1.bitfield.zmmword)
2361 if (!(t0.bitfield.byte & t1.bitfield.byte)
2362 && !(t0.bitfield.word & t1.bitfield.word)
2363 && !(t0.bitfield.dword & t1.bitfield.dword)
2364 && !(t0.bitfield.qword & t1.bitfield.qword)
2365 && !(t0.bitfield.xmmword & t1.bitfield.xmmword)
2366 && !(t0.bitfield.ymmword & t1.bitfield.ymmword)
2367 && !(t0.bitfield.zmmword & t1.bitfield.zmmword))
2370 i.error = register_type_mismatch;
2375 static INLINE unsigned int
2376 register_number (const reg_entry *r)
2378 unsigned int nr = r->reg_num;
2380 if (r->reg_flags & RegRex)
2383 if (r->reg_flags & RegVRex)
2389 static INLINE unsigned int
2390 mode_from_disp_size (i386_operand_type t)
2392 if (t.bitfield.disp8)
2394 else if (t.bitfield.disp16
2395 || t.bitfield.disp32
2396 || t.bitfield.disp32s)
2403 fits_in_signed_byte (addressT num)
2405 return num + 0x80 <= 0xff;
2409 fits_in_unsigned_byte (addressT num)
2415 fits_in_unsigned_word (addressT num)
2417 return num <= 0xffff;
2421 fits_in_signed_word (addressT num)
2423 return num + 0x8000 <= 0xffff;
2427 fits_in_signed_long (addressT num ATTRIBUTE_UNUSED)
2432 return num + 0x80000000 <= 0xffffffff;
2434 } /* fits_in_signed_long() */
2437 fits_in_unsigned_long (addressT num ATTRIBUTE_UNUSED)
2442 return num <= 0xffffffff;
2444 } /* fits_in_unsigned_long() */
2447 fits_in_disp8 (offsetT num)
2449 int shift = i.memshift;
2455 mask = (1 << shift) - 1;
2457 /* Return 0 if NUM isn't properly aligned. */
2461 /* Check if NUM will fit in 8bit after shift. */
2462 return fits_in_signed_byte (num >> shift);
2466 fits_in_imm4 (offsetT num)
2468 return (num & 0xf) == num;
2471 static i386_operand_type
2472 smallest_imm_type (offsetT num)
2474 i386_operand_type t;
2476 operand_type_set (&t, 0);
2477 t.bitfield.imm64 = 1;
2479 if (cpu_arch_tune != PROCESSOR_I486 && num == 1)
2481 /* This code is disabled on the 486 because all the Imm1 forms
2482 in the opcode table are slower on the i486. They're the
2483 versions with the implicitly specified single-position
2484 displacement, which has another syntax if you really want to
2486 t.bitfield.imm1 = 1;
2487 t.bitfield.imm8 = 1;
2488 t.bitfield.imm8s = 1;
2489 t.bitfield.imm16 = 1;
2490 t.bitfield.imm32 = 1;
2491 t.bitfield.imm32s = 1;
2493 else if (fits_in_signed_byte (num))
2495 t.bitfield.imm8 = 1;
2496 t.bitfield.imm8s = 1;
2497 t.bitfield.imm16 = 1;
2498 t.bitfield.imm32 = 1;
2499 t.bitfield.imm32s = 1;
2501 else if (fits_in_unsigned_byte (num))
2503 t.bitfield.imm8 = 1;
2504 t.bitfield.imm16 = 1;
2505 t.bitfield.imm32 = 1;
2506 t.bitfield.imm32s = 1;
2508 else if (fits_in_signed_word (num) || fits_in_unsigned_word (num))
2510 t.bitfield.imm16 = 1;
2511 t.bitfield.imm32 = 1;
2512 t.bitfield.imm32s = 1;
2514 else if (fits_in_signed_long (num))
2516 t.bitfield.imm32 = 1;
2517 t.bitfield.imm32s = 1;
2519 else if (fits_in_unsigned_long (num))
2520 t.bitfield.imm32 = 1;
2526 offset_in_range (offsetT val, int size)
2532 case 1: mask = ((addressT) 1 << 8) - 1; break;
2533 case 2: mask = ((addressT) 1 << 16) - 1; break;
2534 case 4: mask = ((addressT) 2 << 31) - 1; break;
2536 case 8: mask = ((addressT) 2 << 63) - 1; break;
2541 if ((val & ~mask) != 0 && (val & ~mask) != ~mask)
2543 char buf1[40], buf2[40];
2545 sprint_value (buf1, val);
2546 sprint_value (buf2, val & mask);
2547 as_warn (_("%s shortened to %s"), buf1, buf2);
2562 a. PREFIX_EXIST if attempting to add a prefix where one from the
2563 same class already exists.
2564 b. PREFIX_LOCK if lock prefix is added.
2565 c. PREFIX_REP if rep/repne prefix is added.
2566 d. PREFIX_DS if ds prefix is added.
2567 e. PREFIX_OTHER if other prefix is added.
2570 static enum PREFIX_GROUP
2571 add_prefix (unsigned int prefix)
2573 enum PREFIX_GROUP ret = PREFIX_OTHER;
2576 if (prefix >= REX_OPCODE && prefix < REX_OPCODE + 16
2577 && flag_code == CODE_64BIT)
2579 if ((i.prefix[REX_PREFIX] & prefix & REX_W)
2580 || (i.prefix[REX_PREFIX] & prefix & REX_R)
2581 || (i.prefix[REX_PREFIX] & prefix & REX_X)
2582 || (i.prefix[REX_PREFIX] & prefix & REX_B))
2593 case DS_PREFIX_OPCODE:
2596 case CS_PREFIX_OPCODE:
2597 case ES_PREFIX_OPCODE:
2598 case FS_PREFIX_OPCODE:
2599 case GS_PREFIX_OPCODE:
2600 case SS_PREFIX_OPCODE:
2604 case REPNE_PREFIX_OPCODE:
2605 case REPE_PREFIX_OPCODE:
2610 case LOCK_PREFIX_OPCODE:
2619 case ADDR_PREFIX_OPCODE:
2623 case DATA_PREFIX_OPCODE:
2627 if (i.prefix[q] != 0)
2635 i.prefix[q] |= prefix;
2638 as_bad (_("same type of prefix used twice"));
2644 update_code_flag (int value, int check)
2646 PRINTF_LIKE ((*as_error));
2648 flag_code = (enum flag_code) value;
2649 if (flag_code == CODE_64BIT)
2651 cpu_arch_flags.bitfield.cpu64 = 1;
2652 cpu_arch_flags.bitfield.cpuno64 = 0;
2656 cpu_arch_flags.bitfield.cpu64 = 0;
2657 cpu_arch_flags.bitfield.cpuno64 = 1;
2659 if (value == CODE_64BIT && !cpu_arch_flags.bitfield.cpulm )
2662 as_error = as_fatal;
2665 (*as_error) (_("64bit mode not supported on `%s'."),
2666 cpu_arch_name ? cpu_arch_name : default_arch);
2668 if (value == CODE_32BIT && !cpu_arch_flags.bitfield.cpui386)
2671 as_error = as_fatal;
2674 (*as_error) (_("32bit mode not supported on `%s'."),
2675 cpu_arch_name ? cpu_arch_name : default_arch);
2677 stackop_size = '\0';
2681 set_code_flag (int value)
2683 update_code_flag (value, 0);
2687 set_16bit_gcc_code_flag (int new_code_flag)
2689 flag_code = (enum flag_code) new_code_flag;
2690 if (flag_code != CODE_16BIT)
2692 cpu_arch_flags.bitfield.cpu64 = 0;
2693 cpu_arch_flags.bitfield.cpuno64 = 1;
2694 stackop_size = LONG_MNEM_SUFFIX;
2698 set_intel_syntax (int syntax_flag)
2700 /* Find out if register prefixing is specified. */
2701 int ask_naked_reg = 0;
2704 if (!is_end_of_line[(unsigned char) *input_line_pointer])
2707 int e = get_symbol_name (&string);
2709 if (strcmp (string, "prefix") == 0)
2711 else if (strcmp (string, "noprefix") == 0)
2714 as_bad (_("bad argument to syntax directive."));
2715 (void) restore_line_pointer (e);
2717 demand_empty_rest_of_line ();
2719 intel_syntax = syntax_flag;
2721 if (ask_naked_reg == 0)
2722 allow_naked_reg = (intel_syntax
2723 && (bfd_get_symbol_leading_char (stdoutput) != '\0'));
2725 allow_naked_reg = (ask_naked_reg < 0);
2727 expr_set_rank (O_full_ptr, syntax_flag ? 10 : 0);
2729 identifier_chars['%'] = intel_syntax && allow_naked_reg ? '%' : 0;
2730 identifier_chars['$'] = intel_syntax ? '$' : 0;
2731 register_prefix = allow_naked_reg ? "" : "%";
2735 set_intel_mnemonic (int mnemonic_flag)
2737 intel_mnemonic = mnemonic_flag;
2741 set_allow_index_reg (int flag)
2743 allow_index_reg = flag;
2747 set_check (int what)
2749 enum check_kind *kind;
2754 kind = &operand_check;
2765 if (!is_end_of_line[(unsigned char) *input_line_pointer])
2768 int e = get_symbol_name (&string);
2770 if (strcmp (string, "none") == 0)
2772 else if (strcmp (string, "warning") == 0)
2773 *kind = check_warning;
2774 else if (strcmp (string, "error") == 0)
2775 *kind = check_error;
2777 as_bad (_("bad argument to %s_check directive."), str);
2778 (void) restore_line_pointer (e);
2781 as_bad (_("missing argument for %s_check directive"), str);
2783 demand_empty_rest_of_line ();
2787 check_cpu_arch_compatible (const char *name ATTRIBUTE_UNUSED,
2788 i386_cpu_flags new_flag ATTRIBUTE_UNUSED)
2790 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
2791 static const char *arch;
2793 /* Intel LIOM is only supported on ELF. */
2799 /* Use cpu_arch_name if it is set in md_parse_option. Otherwise
2800 use default_arch. */
2801 arch = cpu_arch_name;
2803 arch = default_arch;
2806 /* If we are targeting Intel MCU, we must enable it. */
2807 if (get_elf_backend_data (stdoutput)->elf_machine_code != EM_IAMCU
2808 || new_flag.bitfield.cpuiamcu)
2811 /* If we are targeting Intel L1OM, we must enable it. */
2812 if (get_elf_backend_data (stdoutput)->elf_machine_code != EM_L1OM
2813 || new_flag.bitfield.cpul1om)
2816 /* If we are targeting Intel K1OM, we must enable it. */
2817 if (get_elf_backend_data (stdoutput)->elf_machine_code != EM_K1OM
2818 || new_flag.bitfield.cpuk1om)
2821 as_bad (_("`%s' is not supported on `%s'"), name, arch);
2826 set_cpu_arch (int dummy ATTRIBUTE_UNUSED)
2830 if (!is_end_of_line[(unsigned char) *input_line_pointer])
2833 int e = get_symbol_name (&string);
2835 i386_cpu_flags flags;
2837 for (j = 0; j < ARRAY_SIZE (cpu_arch); j++)
2839 if (strcmp (string, cpu_arch[j].name) == 0)
2841 check_cpu_arch_compatible (string, cpu_arch[j].flags);
2845 cpu_arch_name = cpu_arch[j].name;
2846 cpu_sub_arch_name = NULL;
2847 cpu_arch_flags = cpu_arch[j].flags;
2848 if (flag_code == CODE_64BIT)
2850 cpu_arch_flags.bitfield.cpu64 = 1;
2851 cpu_arch_flags.bitfield.cpuno64 = 0;
2855 cpu_arch_flags.bitfield.cpu64 = 0;
2856 cpu_arch_flags.bitfield.cpuno64 = 1;
2858 cpu_arch_isa = cpu_arch[j].type;
2859 cpu_arch_isa_flags = cpu_arch[j].flags;
2860 if (!cpu_arch_tune_set)
2862 cpu_arch_tune = cpu_arch_isa;
2863 cpu_arch_tune_flags = cpu_arch_isa_flags;
2868 flags = cpu_flags_or (cpu_arch_flags,
2871 if (!cpu_flags_equal (&flags, &cpu_arch_flags))
2873 if (cpu_sub_arch_name)
2875 char *name = cpu_sub_arch_name;
2876 cpu_sub_arch_name = concat (name,
2878 (const char *) NULL);
2882 cpu_sub_arch_name = xstrdup (cpu_arch[j].name);
2883 cpu_arch_flags = flags;
2884 cpu_arch_isa_flags = flags;
2888 = cpu_flags_or (cpu_arch_isa_flags,
2890 (void) restore_line_pointer (e);
2891 demand_empty_rest_of_line ();
2896 if (*string == '.' && j >= ARRAY_SIZE (cpu_arch))
2898 /* Disable an ISA extension. */
2899 for (j = 0; j < ARRAY_SIZE (cpu_noarch); j++)
2900 if (strcmp (string + 1, cpu_noarch [j].name) == 0)
2902 flags = cpu_flags_and_not (cpu_arch_flags,
2903 cpu_noarch[j].flags);
2904 if (!cpu_flags_equal (&flags, &cpu_arch_flags))
2906 if (cpu_sub_arch_name)
2908 char *name = cpu_sub_arch_name;
2909 cpu_sub_arch_name = concat (name, string,
2910 (const char *) NULL);
2914 cpu_sub_arch_name = xstrdup (string);
2915 cpu_arch_flags = flags;
2916 cpu_arch_isa_flags = flags;
2918 (void) restore_line_pointer (e);
2919 demand_empty_rest_of_line ();
2923 j = ARRAY_SIZE (cpu_arch);
2926 if (j >= ARRAY_SIZE (cpu_arch))
2927 as_bad (_("no such architecture: `%s'"), string);
2929 *input_line_pointer = e;
2932 as_bad (_("missing cpu architecture"));
2934 no_cond_jump_promotion = 0;
2935 if (*input_line_pointer == ','
2936 && !is_end_of_line[(unsigned char) input_line_pointer[1]])
2941 ++input_line_pointer;
2942 e = get_symbol_name (&string);
2944 if (strcmp (string, "nojumps") == 0)
2945 no_cond_jump_promotion = 1;
2946 else if (strcmp (string, "jumps") == 0)
2949 as_bad (_("no such architecture modifier: `%s'"), string);
2951 (void) restore_line_pointer (e);
2954 demand_empty_rest_of_line ();
2957 enum bfd_architecture
2960 if (cpu_arch_isa == PROCESSOR_L1OM)
2962 if (OUTPUT_FLAVOR != bfd_target_elf_flavour
2963 || flag_code != CODE_64BIT)
2964 as_fatal (_("Intel L1OM is 64bit ELF only"));
2965 return bfd_arch_l1om;
2967 else if (cpu_arch_isa == PROCESSOR_K1OM)
2969 if (OUTPUT_FLAVOR != bfd_target_elf_flavour
2970 || flag_code != CODE_64BIT)
2971 as_fatal (_("Intel K1OM is 64bit ELF only"));
2972 return bfd_arch_k1om;
2974 else if (cpu_arch_isa == PROCESSOR_IAMCU)
2976 if (OUTPUT_FLAVOR != bfd_target_elf_flavour
2977 || flag_code == CODE_64BIT)
2978 as_fatal (_("Intel MCU is 32bit ELF only"));
2979 return bfd_arch_iamcu;
2982 return bfd_arch_i386;
2988 if (!strncmp (default_arch, "x86_64", 6))
2990 if (cpu_arch_isa == PROCESSOR_L1OM)
2992 if (OUTPUT_FLAVOR != bfd_target_elf_flavour
2993 || default_arch[6] != '\0')
2994 as_fatal (_("Intel L1OM is 64bit ELF only"));
2995 return bfd_mach_l1om;
2997 else if (cpu_arch_isa == PROCESSOR_K1OM)
2999 if (OUTPUT_FLAVOR != bfd_target_elf_flavour
3000 || default_arch[6] != '\0')
3001 as_fatal (_("Intel K1OM is 64bit ELF only"));
3002 return bfd_mach_k1om;
3004 else if (default_arch[6] == '\0')
3005 return bfd_mach_x86_64;
3007 return bfd_mach_x64_32;
3009 else if (!strcmp (default_arch, "i386")
3010 || !strcmp (default_arch, "iamcu"))
3012 if (cpu_arch_isa == PROCESSOR_IAMCU)
3014 if (OUTPUT_FLAVOR != bfd_target_elf_flavour)
3015 as_fatal (_("Intel MCU is 32bit ELF only"));
3016 return bfd_mach_i386_iamcu;
3019 return bfd_mach_i386_i386;
3022 as_fatal (_("unknown architecture"));
3028 const char *hash_err;
3030 /* Support pseudo prefixes like {disp32}. */
3031 lex_type ['{'] = LEX_BEGIN_NAME;
3033 /* Initialize op_hash hash table. */
3034 op_hash = hash_new ();
3037 const insn_template *optab;
3038 templates *core_optab;
3040 /* Setup for loop. */
3042 core_optab = XNEW (templates);
3043 core_optab->start = optab;
3048 if (optab->name == NULL
3049 || strcmp (optab->name, (optab - 1)->name) != 0)
3051 /* different name --> ship out current template list;
3052 add to hash table; & begin anew. */
3053 core_optab->end = optab;
3054 hash_err = hash_insert (op_hash,
3056 (void *) core_optab);
3059 as_fatal (_("can't hash %s: %s"),
3063 if (optab->name == NULL)
3065 core_optab = XNEW (templates);
3066 core_optab->start = optab;
3071 /* Initialize reg_hash hash table. */
3072 reg_hash = hash_new ();
3074 const reg_entry *regtab;
3075 unsigned int regtab_size = i386_regtab_size;
3077 for (regtab = i386_regtab; regtab_size--; regtab++)
3079 hash_err = hash_insert (reg_hash, regtab->reg_name, (void *) regtab);
3081 as_fatal (_("can't hash %s: %s"),
3087 /* Fill in lexical tables: mnemonic_chars, operand_chars. */
3092 for (c = 0; c < 256; c++)
3097 mnemonic_chars[c] = c;
3098 register_chars[c] = c;
3099 operand_chars[c] = c;
3101 else if (ISLOWER (c))
3103 mnemonic_chars[c] = c;
3104 register_chars[c] = c;
3105 operand_chars[c] = c;
3107 else if (ISUPPER (c))
3109 mnemonic_chars[c] = TOLOWER (c);
3110 register_chars[c] = mnemonic_chars[c];
3111 operand_chars[c] = c;
3113 else if (c == '{' || c == '}')
3115 mnemonic_chars[c] = c;
3116 operand_chars[c] = c;
3118 #ifdef SVR4_COMMENT_CHARS
3119 else if (c == '\\' && strchr (i386_comment_chars, '/'))
3120 operand_chars[c] = c;
3123 if (ISALPHA (c) || ISDIGIT (c))
3124 identifier_chars[c] = c;
3127 identifier_chars[c] = c;
3128 operand_chars[c] = c;
3133 identifier_chars['@'] = '@';
3136 identifier_chars['?'] = '?';
3137 operand_chars['?'] = '?';
3139 digit_chars['-'] = '-';
3140 mnemonic_chars['_'] = '_';
3141 mnemonic_chars['-'] = '-';
3142 mnemonic_chars['.'] = '.';
3143 identifier_chars['_'] = '_';
3144 identifier_chars['.'] = '.';
3146 for (p = operand_special_chars; *p != '\0'; p++)
3147 operand_chars[(unsigned char) *p] = *p;
3150 if (flag_code == CODE_64BIT)
3152 #if defined (OBJ_COFF) && defined (TE_PE)
3153 x86_dwarf2_return_column = (OUTPUT_FLAVOR == bfd_target_coff_flavour
3156 x86_dwarf2_return_column = 16;
3158 x86_cie_data_alignment = -8;
3162 x86_dwarf2_return_column = 8;
3163 x86_cie_data_alignment = -4;
3166 /* NB: FUSED_JCC_PADDING frag must have sufficient room so that it
3167 can be turned into BRANCH_PREFIX frag. */
3168 if (align_branch_prefix_size > MAX_FUSED_JCC_PADDING_SIZE)
3173 i386_print_statistics (FILE *file)
3175 hash_print_statistics (file, "i386 opcode", op_hash);
3176 hash_print_statistics (file, "i386 register", reg_hash);
3181 /* Debugging routines for md_assemble. */
3182 static void pte (insn_template *);
3183 static void pt (i386_operand_type);
3184 static void pe (expressionS *);
3185 static void ps (symbolS *);
3188 pi (const char *line, i386_insn *x)
3192 fprintf (stdout, "%s: template ", line);
3194 fprintf (stdout, " address: base %s index %s scale %x\n",
3195 x->base_reg ? x->base_reg->reg_name : "none",
3196 x->index_reg ? x->index_reg->reg_name : "none",
3197 x->log2_scale_factor);
3198 fprintf (stdout, " modrm: mode %x reg %x reg/mem %x\n",
3199 x->rm.mode, x->rm.reg, x->rm.regmem);
3200 fprintf (stdout, " sib: base %x index %x scale %x\n",
3201 x->sib.base, x->sib.index, x->sib.scale);
3202 fprintf (stdout, " rex: 64bit %x extX %x extY %x extZ %x\n",
3203 (x->rex & REX_W) != 0,
3204 (x->rex & REX_R) != 0,
3205 (x->rex & REX_X) != 0,
3206 (x->rex & REX_B) != 0);
3207 for (j = 0; j < x->operands; j++)
3209 fprintf (stdout, " #%d: ", j + 1);
3211 fprintf (stdout, "\n");
3212 if (x->types[j].bitfield.class == Reg
3213 || x->types[j].bitfield.class == RegMMX
3214 || x->types[j].bitfield.class == RegSIMD
3215 || x->types[j].bitfield.class == RegMask
3216 || x->types[j].bitfield.class == SReg
3217 || x->types[j].bitfield.class == RegCR
3218 || x->types[j].bitfield.class == RegDR
3219 || x->types[j].bitfield.class == RegTR
3220 || x->types[j].bitfield.class == RegBND)
3221 fprintf (stdout, "%s\n", x->op[j].regs->reg_name);
3222 if (operand_type_check (x->types[j], imm))
3224 if (operand_type_check (x->types[j], disp))
3225 pe (x->op[j].disps);
3230 pte (insn_template *t)
3233 fprintf (stdout, " %d operands ", t->operands);
3234 fprintf (stdout, "opcode %x ", t->base_opcode);
3235 if (t->extension_opcode != None)
3236 fprintf (stdout, "ext %x ", t->extension_opcode);
3237 if (t->opcode_modifier.d)
3238 fprintf (stdout, "D");
3239 if (t->opcode_modifier.w)
3240 fprintf (stdout, "W");
3241 fprintf (stdout, "\n");
3242 for (j = 0; j < t->operands; j++)
3244 fprintf (stdout, " #%d type ", j + 1);
3245 pt (t->operand_types[j]);
3246 fprintf (stdout, "\n");
3253 fprintf (stdout, " operation %d\n", e->X_op);
3254 fprintf (stdout, " add_number %ld (%lx)\n",
3255 (long) e->X_add_number, (long) e->X_add_number);
3256 if (e->X_add_symbol)
3258 fprintf (stdout, " add_symbol ");
3259 ps (e->X_add_symbol);
3260 fprintf (stdout, "\n");
3264 fprintf (stdout, " op_symbol ");
3265 ps (e->X_op_symbol);
3266 fprintf (stdout, "\n");
3273 fprintf (stdout, "%s type %s%s",
3275 S_IS_EXTERNAL (s) ? "EXTERNAL " : "",
3276 segment_name (S_GET_SEGMENT (s)));
3279 static struct type_name
3281 i386_operand_type mask;
3284 const type_names[] =
3286 { OPERAND_TYPE_REG8, "r8" },
3287 { OPERAND_TYPE_REG16, "r16" },
3288 { OPERAND_TYPE_REG32, "r32" },
3289 { OPERAND_TYPE_REG64, "r64" },
3290 { OPERAND_TYPE_ACC8, "acc8" },
3291 { OPERAND_TYPE_ACC16, "acc16" },
3292 { OPERAND_TYPE_ACC32, "acc32" },
3293 { OPERAND_TYPE_ACC64, "acc64" },
3294 { OPERAND_TYPE_IMM8, "i8" },
3295 { OPERAND_TYPE_IMM8, "i8s" },
3296 { OPERAND_TYPE_IMM16, "i16" },
3297 { OPERAND_TYPE_IMM32, "i32" },
3298 { OPERAND_TYPE_IMM32S, "i32s" },
3299 { OPERAND_TYPE_IMM64, "i64" },
3300 { OPERAND_TYPE_IMM1, "i1" },
3301 { OPERAND_TYPE_BASEINDEX, "BaseIndex" },
3302 { OPERAND_TYPE_DISP8, "d8" },
3303 { OPERAND_TYPE_DISP16, "d16" },
3304 { OPERAND_TYPE_DISP32, "d32" },
3305 { OPERAND_TYPE_DISP32S, "d32s" },
3306 { OPERAND_TYPE_DISP64, "d64" },
3307 { OPERAND_TYPE_INOUTPORTREG, "InOutPortReg" },
3308 { OPERAND_TYPE_SHIFTCOUNT, "ShiftCount" },
3309 { OPERAND_TYPE_CONTROL, "control reg" },
3310 { OPERAND_TYPE_TEST, "test reg" },
3311 { OPERAND_TYPE_DEBUG, "debug reg" },
3312 { OPERAND_TYPE_FLOATREG, "FReg" },
3313 { OPERAND_TYPE_FLOATACC, "FAcc" },
3314 { OPERAND_TYPE_SREG, "SReg" },
3315 { OPERAND_TYPE_REGMMX, "rMMX" },
3316 { OPERAND_TYPE_REGXMM, "rXMM" },
3317 { OPERAND_TYPE_REGYMM, "rYMM" },
3318 { OPERAND_TYPE_REGZMM, "rZMM" },
3319 { OPERAND_TYPE_REGTMM, "rTMM" },
3320 { OPERAND_TYPE_REGMASK, "Mask reg" },
3324 pt (i386_operand_type t)
3327 i386_operand_type a;
3329 for (j = 0; j < ARRAY_SIZE (type_names); j++)
3331 a = operand_type_and (t, type_names[j].mask);
3332 if (operand_type_equal (&a, &type_names[j].mask))
3333 fprintf (stdout, "%s, ", type_names[j].name);
3338 #endif /* DEBUG386 */
3340 static bfd_reloc_code_real_type
3341 reloc (unsigned int size,
3344 bfd_reloc_code_real_type other)
3346 if (other != NO_RELOC)
3348 reloc_howto_type *rel;
3353 case BFD_RELOC_X86_64_GOT32:
3354 return BFD_RELOC_X86_64_GOT64;
3356 case BFD_RELOC_X86_64_GOTPLT64:
3357 return BFD_RELOC_X86_64_GOTPLT64;
3359 case BFD_RELOC_X86_64_PLTOFF64:
3360 return BFD_RELOC_X86_64_PLTOFF64;
3362 case BFD_RELOC_X86_64_GOTPC32:
3363 other = BFD_RELOC_X86_64_GOTPC64;
3365 case BFD_RELOC_X86_64_GOTPCREL:
3366 other = BFD_RELOC_X86_64_GOTPCREL64;
3368 case BFD_RELOC_X86_64_TPOFF32:
3369 other = BFD_RELOC_X86_64_TPOFF64;
3371 case BFD_RELOC_X86_64_DTPOFF32:
3372 other = BFD_RELOC_X86_64_DTPOFF64;
3378 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
3379 if (other == BFD_RELOC_SIZE32)
3382 other = BFD_RELOC_SIZE64;
3385 as_bad (_("there are no pc-relative size relocations"));
3391 /* Sign-checking 4-byte relocations in 16-/32-bit code is pointless. */
3392 if (size == 4 && (flag_code != CODE_64BIT || disallow_64bit_reloc))
3395 rel = bfd_reloc_type_lookup (stdoutput, other);
3397 as_bad (_("unknown relocation (%u)"), other);
3398 else if (size != bfd_get_reloc_size (rel))
3399 as_bad (_("%u-byte relocation cannot be applied to %u-byte field"),
3400 bfd_get_reloc_size (rel),
3402 else if (pcrel && !rel->pc_relative)
3403 as_bad (_("non-pc-relative relocation for pc-relative field"));
3404 else if ((rel->complain_on_overflow == complain_overflow_signed
3406 || (rel->complain_on_overflow == complain_overflow_unsigned
3408 as_bad (_("relocated field and relocation type differ in signedness"));
3417 as_bad (_("there are no unsigned pc-relative relocations"));
3420 case 1: return BFD_RELOC_8_PCREL;
3421 case 2: return BFD_RELOC_16_PCREL;
3422 case 4: return BFD_RELOC_32_PCREL;
3423 case 8: return BFD_RELOC_64_PCREL;
3425 as_bad (_("cannot do %u byte pc-relative relocation"), size);
3432 case 4: return BFD_RELOC_X86_64_32S;
3437 case 1: return BFD_RELOC_8;
3438 case 2: return BFD_RELOC_16;
3439 case 4: return BFD_RELOC_32;
3440 case 8: return BFD_RELOC_64;
3442 as_bad (_("cannot do %s %u byte relocation"),
3443 sign > 0 ? "signed" : "unsigned", size);
3449 /* Here we decide which fixups can be adjusted to make them relative to
3450 the beginning of the section instead of the symbol. Basically we need
3451 to make sure that the dynamic relocations are done correctly, so in
3452 some cases we force the original symbol to be used. */
3455 tc_i386_fix_adjustable (fixS *fixP ATTRIBUTE_UNUSED)
3457 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
3461 /* Don't adjust pc-relative references to merge sections in 64-bit
3463 if (use_rela_relocations
3464 && (S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_MERGE) != 0
3468 /* The x86_64 GOTPCREL are represented as 32bit PCrel relocations
3469 and changed later by validate_fix. */
3470 if (GOT_symbol && fixP->fx_subsy == GOT_symbol
3471 && fixP->fx_r_type == BFD_RELOC_32_PCREL)
3474 /* Adjust_reloc_syms doesn't know about the GOT. Need to keep symbol
3475 for size relocations. */
3476 if (fixP->fx_r_type == BFD_RELOC_SIZE32
3477 || fixP->fx_r_type == BFD_RELOC_SIZE64
3478 || fixP->fx_r_type == BFD_RELOC_386_GOTOFF
3479 || fixP->fx_r_type == BFD_RELOC_386_GOT32
3480 || fixP->fx_r_type == BFD_RELOC_386_GOT32X
3481 || fixP->fx_r_type == BFD_RELOC_386_TLS_GD
3482 || fixP->fx_r_type == BFD_RELOC_386_TLS_LDM
3483 || fixP->fx_r_type == BFD_RELOC_386_TLS_LDO_32
3484 || fixP->fx_r_type == BFD_RELOC_386_TLS_IE_32
3485 || fixP->fx_r_type == BFD_RELOC_386_TLS_IE
3486 || fixP->fx_r_type == BFD_RELOC_386_TLS_GOTIE
3487 || fixP->fx_r_type == BFD_RELOC_386_TLS_LE_32
3488 || fixP->fx_r_type == BFD_RELOC_386_TLS_LE
3489 || fixP->fx_r_type == BFD_RELOC_386_TLS_GOTDESC
3490 || fixP->fx_r_type == BFD_RELOC_386_TLS_DESC_CALL
3491 || fixP->fx_r_type == BFD_RELOC_X86_64_GOT32
3492 || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPCREL
3493 || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPCRELX
3494 || fixP->fx_r_type == BFD_RELOC_X86_64_REX_GOTPCRELX
3495 || fixP->fx_r_type == BFD_RELOC_X86_64_TLSGD
3496 || fixP->fx_r_type == BFD_RELOC_X86_64_TLSLD
3497 || fixP->fx_r_type == BFD_RELOC_X86_64_DTPOFF32
3498 || fixP->fx_r_type == BFD_RELOC_X86_64_DTPOFF64
3499 || fixP->fx_r_type == BFD_RELOC_X86_64_GOTTPOFF
3500 || fixP->fx_r_type == BFD_RELOC_X86_64_TPOFF32
3501 || fixP->fx_r_type == BFD_RELOC_X86_64_TPOFF64
3502 || fixP->fx_r_type == BFD_RELOC_X86_64_GOTOFF64
3503 || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPC32_TLSDESC
3504 || fixP->fx_r_type == BFD_RELOC_X86_64_TLSDESC_CALL
3505 || fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT
3506 || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
3513 intel_float_operand (const char *mnemonic)
3515 /* Note that the value returned is meaningful only for opcodes with (memory)
3516 operands, hence the code here is free to improperly handle opcodes that
3517 have no operands (for better performance and smaller code). */
3519 if (mnemonic[0] != 'f')
3520 return 0; /* non-math */
3522 switch (mnemonic[1])
3524 /* fclex, fdecstp, fdisi, femms, feni, fincstp, finit, fsetpm, and
3525 the fs segment override prefix not currently handled because no
3526 call path can make opcodes without operands get here */
3528 return 2 /* integer op */;
3530 if (mnemonic[2] == 'd' && (mnemonic[3] == 'c' || mnemonic[3] == 'e'))
3531 return 3; /* fldcw/fldenv */
3534 if (mnemonic[2] != 'o' /* fnop */)
3535 return 3; /* non-waiting control op */
3538 if (mnemonic[2] == 's')
3539 return 3; /* frstor/frstpm */
3542 if (mnemonic[2] == 'a')
3543 return 3; /* fsave */
3544 if (mnemonic[2] == 't')
3546 switch (mnemonic[3])
3548 case 'c': /* fstcw */
3549 case 'd': /* fstdw */
3550 case 'e': /* fstenv */
3551 case 's': /* fsts[gw] */
3557 if (mnemonic[2] == 'r' || mnemonic[2] == 's')
3558 return 0; /* fxsave/fxrstor are not really math ops */
3565 /* Build the VEX prefix. */
3568 build_vex_prefix (const insn_template *t)
3570 unsigned int register_specifier;
3571 unsigned int implied_prefix;
3572 unsigned int vector_length;
3575 /* Check register specifier. */
3576 if (i.vex.register_specifier)
3578 register_specifier =
3579 ~register_number (i.vex.register_specifier) & 0xf;
3580 gas_assert ((i.vex.register_specifier->reg_flags & RegVRex) == 0);
3583 register_specifier = 0xf;
3585 /* Use 2-byte VEX prefix by swapping destination and source operand
3586 if there are more than 1 register operand. */
3587 if (i.reg_operands > 1
3588 && i.vec_encoding != vex_encoding_vex3
3589 && i.dir_encoding == dir_encoding_default
3590 && i.operands == i.reg_operands
3591 && operand_type_equal (&i.types[0], &i.types[i.operands - 1])
3592 && i.tm.opcode_modifier.vexopcode == VEX0F
3593 && (i.tm.opcode_modifier.load || i.tm.opcode_modifier.d)
3596 unsigned int xchg = i.operands - 1;
3597 union i386_op temp_op;
3598 i386_operand_type temp_type;
3600 temp_type = i.types[xchg];
3601 i.types[xchg] = i.types[0];
3602 i.types[0] = temp_type;
3603 temp_op = i.op[xchg];
3604 i.op[xchg] = i.op[0];
3607 gas_assert (i.rm.mode == 3);
3611 i.rm.regmem = i.rm.reg;
3614 if (i.tm.opcode_modifier.d)
3615 i.tm.base_opcode ^= (i.tm.base_opcode & 0xee) != 0x6e
3616 ? Opcode_SIMD_FloatD : Opcode_SIMD_IntD;
3617 else /* Use the next insn. */
3621 /* Use 2-byte VEX prefix by swapping commutative source operands if there
3622 are no memory operands and at least 3 register ones. */
3623 if (i.reg_operands >= 3
3624 && i.vec_encoding != vex_encoding_vex3
3625 && i.reg_operands == i.operands - i.imm_operands
3626 && i.tm.opcode_modifier.vex
3627 && i.tm.opcode_modifier.commutative
3628 && (i.tm.opcode_modifier.sse2avx || optimize > 1)
3630 && i.vex.register_specifier
3631 && !(i.vex.register_specifier->reg_flags & RegRex))
3633 unsigned int xchg = i.operands - i.reg_operands;
3634 union i386_op temp_op;
3635 i386_operand_type temp_type;
3637 gas_assert (i.tm.opcode_modifier.vexopcode == VEX0F);
3638 gas_assert (!i.tm.opcode_modifier.sae);
3639 gas_assert (operand_type_equal (&i.types[i.operands - 2],
3640 &i.types[i.operands - 3]));
3641 gas_assert (i.rm.mode == 3);
3643 temp_type = i.types[xchg];
3644 i.types[xchg] = i.types[xchg + 1];
3645 i.types[xchg + 1] = temp_type;
3646 temp_op = i.op[xchg];
3647 i.op[xchg] = i.op[xchg + 1];
3648 i.op[xchg + 1] = temp_op;
3651 xchg = i.rm.regmem | 8;
3652 i.rm.regmem = ~register_specifier & 0xf;
3653 gas_assert (!(i.rm.regmem & 8));
3654 i.vex.register_specifier += xchg - i.rm.regmem;
3655 register_specifier = ~xchg & 0xf;
3658 if (i.tm.opcode_modifier.vex == VEXScalar)
3659 vector_length = avxscalar;
3660 else if (i.tm.opcode_modifier.vex == VEX256)
3666 /* Determine vector length from the last multi-length vector
3669 for (op = t->operands; op--;)
3670 if (t->operand_types[op].bitfield.xmmword
3671 && t->operand_types[op].bitfield.ymmword
3672 && i.types[op].bitfield.ymmword)
3679 switch ((i.tm.base_opcode >> (i.tm.opcode_length << 3)) & 0xff)
3684 case DATA_PREFIX_OPCODE:
3687 case REPE_PREFIX_OPCODE:
3690 case REPNE_PREFIX_OPCODE:
3697 /* Check the REX.W bit and VEXW. */
3698 if (i.tm.opcode_modifier.vexw == VEXWIG)
3699 w = (vexwig == vexw1 || (i.rex & REX_W)) ? 1 : 0;
3700 else if (i.tm.opcode_modifier.vexw)
3701 w = i.tm.opcode_modifier.vexw == VEXW1 ? 1 : 0;
3703 w = (flag_code == CODE_64BIT ? i.rex & REX_W : vexwig == vexw1) ? 1 : 0;
3705 /* Use 2-byte VEX prefix if possible. */
3707 && i.vec_encoding != vex_encoding_vex3
3708 && i.tm.opcode_modifier.vexopcode == VEX0F
3709 && (i.rex & (REX_W | REX_X | REX_B)) == 0)
3711 /* 2-byte VEX prefix. */
3715 i.vex.bytes[0] = 0xc5;
3717 /* Check the REX.R bit. */
3718 r = (i.rex & REX_R) ? 0 : 1;
3719 i.vex.bytes[1] = (r << 7
3720 | register_specifier << 3
3721 | vector_length << 2
3726 /* 3-byte VEX prefix. */
3731 switch (i.tm.opcode_modifier.vexopcode)
3735 i.vex.bytes[0] = 0xc4;
3739 i.vex.bytes[0] = 0xc4;
3743 i.vex.bytes[0] = 0xc4;
3747 i.vex.bytes[0] = 0x8f;
3751 i.vex.bytes[0] = 0x8f;
3755 i.vex.bytes[0] = 0x8f;
3761 /* The high 3 bits of the second VEX byte are 1's compliment
3762 of RXB bits from REX. */
3763 i.vex.bytes[1] = (~i.rex & 0x7) << 5 | m;
3765 i.vex.bytes[2] = (w << 7
3766 | register_specifier << 3
3767 | vector_length << 2
3772 static INLINE bfd_boolean
3773 is_evex_encoding (const insn_template *t)
3775 return t->opcode_modifier.evex || t->opcode_modifier.disp8memshift
3776 || t->opcode_modifier.broadcast || t->opcode_modifier.masking
3777 || t->opcode_modifier.sae;
3780 static INLINE bfd_boolean
3781 is_any_vex_encoding (const insn_template *t)
3783 return t->opcode_modifier.vex || t->opcode_modifier.vexopcode
3784 || is_evex_encoding (t);
3787 /* Build the EVEX prefix. */
3790 build_evex_prefix (void)
3792 unsigned int register_specifier;
3793 unsigned int implied_prefix;
3795 rex_byte vrex_used = 0;
3797 /* Check register specifier. */
3798 if (i.vex.register_specifier)
3800 gas_assert ((i.vrex & REX_X) == 0);
3802 register_specifier = i.vex.register_specifier->reg_num;
3803 if ((i.vex.register_specifier->reg_flags & RegRex))
3804 register_specifier += 8;
3805 /* The upper 16 registers are encoded in the fourth byte of the
3807 if (!(i.vex.register_specifier->reg_flags & RegVRex))
3808 i.vex.bytes[3] = 0x8;
3809 register_specifier = ~register_specifier & 0xf;
3813 register_specifier = 0xf;
3815 /* Encode upper 16 vector index register in the fourth byte of
3817 if (!(i.vrex & REX_X))
3818 i.vex.bytes[3] = 0x8;
3823 switch ((i.tm.base_opcode >> 8) & 0xff)
3828 case DATA_PREFIX_OPCODE:
3831 case REPE_PREFIX_OPCODE:
3834 case REPNE_PREFIX_OPCODE:
3841 /* 4 byte EVEX prefix. */
3843 i.vex.bytes[0] = 0x62;
3846 switch (i.tm.opcode_modifier.vexopcode)
3862 /* The high 3 bits of the second EVEX byte are 1's compliment of RXB
3864 i.vex.bytes[1] = (~i.rex & 0x7) << 5 | m;
3866 /* The fifth bit of the second EVEX byte is 1's compliment of the
3867 REX_R bit in VREX. */
3868 if (!(i.vrex & REX_R))
3869 i.vex.bytes[1] |= 0x10;
3873 if ((i.reg_operands + i.imm_operands) == i.operands)
3875 /* When all operands are registers, the REX_X bit in REX is not
3876 used. We reuse it to encode the upper 16 registers, which is
3877 indicated by the REX_B bit in VREX. The REX_X bit is encoded
3878 as 1's compliment. */
3879 if ((i.vrex & REX_B))
3882 i.vex.bytes[1] &= ~0x40;
3886 /* EVEX instructions shouldn't need the REX prefix. */
3887 i.vrex &= ~vrex_used;
3888 gas_assert (i.vrex == 0);
3890 /* Check the REX.W bit and VEXW. */
3891 if (i.tm.opcode_modifier.vexw == VEXWIG)
3892 w = (evexwig == evexw1 || (i.rex & REX_W)) ? 1 : 0;
3893 else if (i.tm.opcode_modifier.vexw)
3894 w = i.tm.opcode_modifier.vexw == VEXW1 ? 1 : 0;
3896 w = (flag_code == CODE_64BIT ? i.rex & REX_W : evexwig == evexw1) ? 1 : 0;
3898 /* Encode the U bit. */
3899 implied_prefix |= 0x4;
3901 /* The third byte of the EVEX prefix. */
3902 i.vex.bytes[2] = (w << 7 | register_specifier << 3 | implied_prefix);
3904 /* The fourth byte of the EVEX prefix. */
3905 /* The zeroing-masking bit. */
3906 if (i.mask && i.mask->zeroing)
3907 i.vex.bytes[3] |= 0x80;
3909 /* Don't always set the broadcast bit if there is no RC. */
3912 /* Encode the vector length. */
3913 unsigned int vec_length;
3915 if (!i.tm.opcode_modifier.evex
3916 || i.tm.opcode_modifier.evex == EVEXDYN)
3920 /* Determine vector length from the last multi-length vector
3922 for (op = i.operands; op--;)
3923 if (i.tm.operand_types[op].bitfield.xmmword
3924 + i.tm.operand_types[op].bitfield.ymmword
3925 + i.tm.operand_types[op].bitfield.zmmword > 1)
3927 if (i.types[op].bitfield.zmmword)
3929 i.tm.opcode_modifier.evex = EVEX512;
3932 else if (i.types[op].bitfield.ymmword)
3934 i.tm.opcode_modifier.evex = EVEX256;
3937 else if (i.types[op].bitfield.xmmword)
3939 i.tm.opcode_modifier.evex = EVEX128;
3942 else if (i.broadcast && (int) op == i.broadcast->operand)
3944 switch (i.broadcast->bytes)
3947 i.tm.opcode_modifier.evex = EVEX512;
3950 i.tm.opcode_modifier.evex = EVEX256;
3953 i.tm.opcode_modifier.evex = EVEX128;
3962 if (op >= MAX_OPERANDS)
3966 switch (i.tm.opcode_modifier.evex)
3968 case EVEXLIG: /* LL' is ignored */
3969 vec_length = evexlig << 5;
3972 vec_length = 0 << 5;
3975 vec_length = 1 << 5;
3978 vec_length = 2 << 5;
3984 i.vex.bytes[3] |= vec_length;
3985 /* Encode the broadcast bit. */
3987 i.vex.bytes[3] |= 0x10;
3991 if (i.rounding->type != saeonly)
3992 i.vex.bytes[3] |= 0x10 | (i.rounding->type << 5);
3994 i.vex.bytes[3] |= 0x10 | (evexrcig << 5);
3997 if (i.mask && i.mask->mask)
3998 i.vex.bytes[3] |= i.mask->mask->reg_num;
4002 process_immext (void)
4006 /* These AMD 3DNow! and SSE2 instructions have an opcode suffix
4007 which is coded in the same place as an 8-bit immediate field
4008 would be. Here we fake an 8-bit immediate operand from the
4009 opcode suffix stored in tm.extension_opcode.
4011 AVX instructions also use this encoding, for some of
4012 3 argument instructions. */
4014 gas_assert (i.imm_operands <= 1
4016 || (is_any_vex_encoding (&i.tm)
4017 && i.operands <= 4)));
4019 exp = &im_expressions[i.imm_operands++];
4020 i.op[i.operands].imms = exp;
4021 i.types[i.operands] = imm8;
4023 exp->X_op = O_constant;
4024 exp->X_add_number = i.tm.extension_opcode;
4025 i.tm.extension_opcode = None;
4032 switch (i.tm.opcode_modifier.hleprefixok)
4037 as_bad (_("invalid instruction `%s' after `%s'"),
4038 i.tm.name, i.hle_prefix);
4041 if (i.prefix[LOCK_PREFIX])
4043 as_bad (_("missing `lock' with `%s'"), i.hle_prefix);
4047 case HLEPrefixRelease:
4048 if (i.prefix[HLE_PREFIX] != XRELEASE_PREFIX_OPCODE)
4050 as_bad (_("instruction `%s' after `xacquire' not allowed"),
4054 if (i.mem_operands == 0 || !(i.flags[i.operands - 1] & Operand_Mem))
4056 as_bad (_("memory destination needed for instruction `%s'"
4057 " after `xrelease'"), i.tm.name);
4064 /* Try the shortest encoding by shortening operand size. */
4067 optimize_encoding (void)
4071 if (optimize_for_space
4072 && !is_any_vex_encoding (&i.tm)
4073 && i.reg_operands == 1
4074 && i.imm_operands == 1
4075 && !i.types[1].bitfield.byte
4076 && i.op[0].imms->X_op == O_constant
4077 && fits_in_imm7 (i.op[0].imms->X_add_number)
4078 && (i.tm.base_opcode == 0xa8
4079 || (i.tm.base_opcode == 0xf6
4080 && i.tm.extension_opcode == 0x0)))
4083 test $imm7, %r64/%r32/%r16 -> test $imm7, %r8
4085 unsigned int base_regnum = i.op[1].regs->reg_num;
4086 if (flag_code == CODE_64BIT || base_regnum < 4)
4088 i.types[1].bitfield.byte = 1;
4089 /* Ignore the suffix. */
4091 /* Convert to byte registers. */
4092 if (i.types[1].bitfield.word)
4094 else if (i.types[1].bitfield.dword)
4098 if (!(i.op[1].regs->reg_flags & RegRex) && base_regnum < 4)
4103 else if (flag_code == CODE_64BIT
4104 && !is_any_vex_encoding (&i.tm)
4105 && ((i.types[1].bitfield.qword
4106 && i.reg_operands == 1
4107 && i.imm_operands == 1
4108 && i.op[0].imms->X_op == O_constant
4109 && ((i.tm.base_opcode == 0xb8
4110 && i.tm.extension_opcode == None
4111 && fits_in_unsigned_long (i.op[0].imms->X_add_number))
4112 || (fits_in_imm31 (i.op[0].imms->X_add_number)
4113 && ((i.tm.base_opcode == 0x24
4114 || i.tm.base_opcode == 0xa8)
4115 || (i.tm.base_opcode == 0x80
4116 && i.tm.extension_opcode == 0x4)
4117 || ((i.tm.base_opcode == 0xf6
4118 || (i.tm.base_opcode | 1) == 0xc7)
4119 && i.tm.extension_opcode == 0x0)))
4120 || (fits_in_imm7 (i.op[0].imms->X_add_number)
4121 && i.tm.base_opcode == 0x83
4122 && i.tm.extension_opcode == 0x4)))
4123 || (i.types[0].bitfield.qword
4124 && ((i.reg_operands == 2
4125 && i.op[0].regs == i.op[1].regs
4126 && (i.tm.base_opcode == 0x30
4127 || i.tm.base_opcode == 0x28))
4128 || (i.reg_operands == 1
4130 && i.tm.base_opcode == 0x30)))))
4133 andq $imm31, %r64 -> andl $imm31, %r32
4134 andq $imm7, %r64 -> andl $imm7, %r32
4135 testq $imm31, %r64 -> testl $imm31, %r32
4136 xorq %r64, %r64 -> xorl %r32, %r32
4137 subq %r64, %r64 -> subl %r32, %r32
4138 movq $imm31, %r64 -> movl $imm31, %r32
4139 movq $imm32, %r64 -> movl $imm32, %r32
4141 i.tm.opcode_modifier.norex64 = 1;
4142 if (i.tm.base_opcode == 0xb8 || (i.tm.base_opcode | 1) == 0xc7)
4145 movq $imm31, %r64 -> movl $imm31, %r32
4146 movq $imm32, %r64 -> movl $imm32, %r32
4148 i.tm.operand_types[0].bitfield.imm32 = 1;
4149 i.tm.operand_types[0].bitfield.imm32s = 0;
4150 i.tm.operand_types[0].bitfield.imm64 = 0;
4151 i.types[0].bitfield.imm32 = 1;
4152 i.types[0].bitfield.imm32s = 0;
4153 i.types[0].bitfield.imm64 = 0;
4154 i.types[1].bitfield.dword = 1;
4155 i.types[1].bitfield.qword = 0;
4156 if ((i.tm.base_opcode | 1) == 0xc7)
4159 movq $imm31, %r64 -> movl $imm31, %r32
4161 i.tm.base_opcode = 0xb8;
4162 i.tm.extension_opcode = None;
4163 i.tm.opcode_modifier.w = 0;
4164 i.tm.opcode_modifier.modrm = 0;
4168 else if (optimize > 1
4169 && !optimize_for_space
4170 && !is_any_vex_encoding (&i.tm)
4171 && i.reg_operands == 2
4172 && i.op[0].regs == i.op[1].regs
4173 && ((i.tm.base_opcode & ~(Opcode_D | 1)) == 0x8
4174 || (i.tm.base_opcode & ~(Opcode_D | 1)) == 0x20)
4175 && (flag_code != CODE_64BIT || !i.types[0].bitfield.dword))
4178 andb %rN, %rN -> testb %rN, %rN
4179 andw %rN, %rN -> testw %rN, %rN
4180 andq %rN, %rN -> testq %rN, %rN
4181 orb %rN, %rN -> testb %rN, %rN
4182 orw %rN, %rN -> testw %rN, %rN
4183 orq %rN, %rN -> testq %rN, %rN
4185 and outside of 64-bit mode
4187 andl %rN, %rN -> testl %rN, %rN
4188 orl %rN, %rN -> testl %rN, %rN
4190 i.tm.base_opcode = 0x84 | (i.tm.base_opcode & 1);
4192 else if (i.reg_operands == 3
4193 && i.op[0].regs == i.op[1].regs
4194 && !i.types[2].bitfield.xmmword
4195 && (i.tm.opcode_modifier.vex
4196 || ((!i.mask || i.mask->zeroing)
4198 && is_evex_encoding (&i.tm)
4199 && (i.vec_encoding != vex_encoding_evex
4200 || cpu_arch_isa_flags.bitfield.cpuavx512vl
4201 || i.tm.cpu_flags.bitfield.cpuavx512vl
4202 || (i.tm.operand_types[2].bitfield.zmmword
4203 && i.types[2].bitfield.ymmword))))
4204 && ((i.tm.base_opcode == 0x55
4205 || i.tm.base_opcode == 0x6655
4206 || i.tm.base_opcode == 0x66df
4207 || i.tm.base_opcode == 0x57
4208 || i.tm.base_opcode == 0x6657
4209 || i.tm.base_opcode == 0x66ef
4210 || i.tm.base_opcode == 0x66f8
4211 || i.tm.base_opcode == 0x66f9
4212 || i.tm.base_opcode == 0x66fa
4213 || i.tm.base_opcode == 0x66fb
4214 || i.tm.base_opcode == 0x42
4215 || i.tm.base_opcode == 0x6642
4216 || i.tm.base_opcode == 0x47
4217 || i.tm.base_opcode == 0x6647)
4218 && i.tm.extension_opcode == None))
4221 VOP, one of vandnps, vandnpd, vxorps, vxorpd, vpsubb, vpsubd,
4223 EVEX VOP %zmmM, %zmmM, %zmmN
4224 -> VEX VOP %xmmM, %xmmM, %xmmN (M and N < 16)
4225 -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2)
4226 EVEX VOP %ymmM, %ymmM, %ymmN
4227 -> VEX VOP %xmmM, %xmmM, %xmmN (M and N < 16)
4228 -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2)
4229 VEX VOP %ymmM, %ymmM, %ymmN
4230 -> VEX VOP %xmmM, %xmmM, %xmmN
4231 VOP, one of vpandn and vpxor:
4232 VEX VOP %ymmM, %ymmM, %ymmN
4233 -> VEX VOP %xmmM, %xmmM, %xmmN
4234 VOP, one of vpandnd and vpandnq:
4235 EVEX VOP %zmmM, %zmmM, %zmmN
4236 -> VEX vpandn %xmmM, %xmmM, %xmmN (M and N < 16)
4237 -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2)
4238 EVEX VOP %ymmM, %ymmM, %ymmN
4239 -> VEX vpandn %xmmM, %xmmM, %xmmN (M and N < 16)
4240 -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2)
4241 VOP, one of vpxord and vpxorq:
4242 EVEX VOP %zmmM, %zmmM, %zmmN
4243 -> VEX vpxor %xmmM, %xmmM, %xmmN (M and N < 16)
4244 -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2)
4245 EVEX VOP %ymmM, %ymmM, %ymmN
4246 -> VEX vpxor %xmmM, %xmmM, %xmmN (M and N < 16)
4247 -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2)
4248 VOP, one of kxord and kxorq:
4249 VEX VOP %kM, %kM, %kN
4250 -> VEX kxorw %kM, %kM, %kN
4251 VOP, one of kandnd and kandnq:
4252 VEX VOP %kM, %kM, %kN
4253 -> VEX kandnw %kM, %kM, %kN
4255 if (is_evex_encoding (&i.tm))
4257 if (i.vec_encoding != vex_encoding_evex)
4259 i.tm.opcode_modifier.vex = VEX128;
4260 i.tm.opcode_modifier.vexw = VEXW0;
4261 i.tm.opcode_modifier.evex = 0;
4263 else if (optimize > 1)
4264 i.tm.opcode_modifier.evex = EVEX128;
4268 else if (i.tm.operand_types[0].bitfield.class == RegMask)
4270 i.tm.base_opcode &= 0xff;
4271 i.tm.opcode_modifier.vexw = VEXW0;
4274 i.tm.opcode_modifier.vex = VEX128;
4276 if (i.tm.opcode_modifier.vex)
4277 for (j = 0; j < 3; j++)
4279 i.types[j].bitfield.xmmword = 1;
4280 i.types[j].bitfield.ymmword = 0;
4283 else if (i.vec_encoding != vex_encoding_evex
4284 && !i.types[0].bitfield.zmmword
4285 && !i.types[1].bitfield.zmmword
4288 && is_evex_encoding (&i.tm)
4289 && ((i.tm.base_opcode & ~Opcode_SIMD_IntD) == 0x666f
4290 || (i.tm.base_opcode & ~Opcode_SIMD_IntD) == 0xf36f
4291 || (i.tm.base_opcode & ~Opcode_SIMD_IntD) == 0xf26f
4292 || (i.tm.base_opcode & ~4) == 0x66db
4293 || (i.tm.base_opcode & ~4) == 0x66eb)
4294 && i.tm.extension_opcode == None)
4297 VOP, one of vmovdqa32, vmovdqa64, vmovdqu8, vmovdqu16,
4298 vmovdqu32 and vmovdqu64:
4299 EVEX VOP %xmmM, %xmmN
4300 -> VEX vmovdqa|vmovdqu %xmmM, %xmmN (M and N < 16)
4301 EVEX VOP %ymmM, %ymmN
4302 -> VEX vmovdqa|vmovdqu %ymmM, %ymmN (M and N < 16)
4304 -> VEX vmovdqa|vmovdqu %xmmM, mem (M < 16)
4306 -> VEX vmovdqa|vmovdqu %ymmM, mem (M < 16)
4308 -> VEX mvmovdqa|vmovdquem, %xmmN (N < 16)
4310 -> VEX vmovdqa|vmovdqu mem, %ymmN (N < 16)
4311 VOP, one of vpand, vpandn, vpor, vpxor:
4312 EVEX VOP{d,q} %xmmL, %xmmM, %xmmN
4313 -> VEX VOP %xmmL, %xmmM, %xmmN (L, M, and N < 16)
4314 EVEX VOP{d,q} %ymmL, %ymmM, %ymmN
4315 -> VEX VOP %ymmL, %ymmM, %ymmN (L, M, and N < 16)
4316 EVEX VOP{d,q} mem, %xmmM, %xmmN
4317 -> VEX VOP mem, %xmmM, %xmmN (M and N < 16)
4318 EVEX VOP{d,q} mem, %ymmM, %ymmN
4319 -> VEX VOP mem, %ymmM, %ymmN (M and N < 16)
4321 for (j = 0; j < i.operands; j++)
4322 if (operand_type_check (i.types[j], disp)
4323 && i.op[j].disps->X_op == O_constant)
4325 /* Since the VEX prefix has 2 or 3 bytes, the EVEX prefix
4326 has 4 bytes, EVEX Disp8 has 1 byte and VEX Disp32 has 4
4327 bytes, we choose EVEX Disp8 over VEX Disp32. */
4328 int evex_disp8, vex_disp8;
4329 unsigned int memshift = i.memshift;
4330 offsetT n = i.op[j].disps->X_add_number;
4332 evex_disp8 = fits_in_disp8 (n);
4334 vex_disp8 = fits_in_disp8 (n);
4335 if (evex_disp8 != vex_disp8)
4337 i.memshift = memshift;
4341 i.types[j].bitfield.disp8 = vex_disp8;
4344 if ((i.tm.base_opcode & ~Opcode_SIMD_IntD) == 0xf26f)
4345 i.tm.base_opcode ^= 0xf36f ^ 0xf26f;
4346 i.tm.opcode_modifier.vex
4347 = i.types[0].bitfield.ymmword ? VEX256 : VEX128;
4348 i.tm.opcode_modifier.vexw = VEXW0;
4349 /* VPAND, VPOR, and VPXOR are commutative. */
4350 if (i.reg_operands == 3 && i.tm.base_opcode != 0x66df)
4351 i.tm.opcode_modifier.commutative = 1;
4352 i.tm.opcode_modifier.evex = 0;
4353 i.tm.opcode_modifier.masking = 0;
4354 i.tm.opcode_modifier.broadcast = 0;
4355 i.tm.opcode_modifier.disp8memshift = 0;
4358 i.types[j].bitfield.disp8
4359 = fits_in_disp8 (i.op[j].disps->X_add_number);
4363 /* Return non-zero for load instruction. */
4369 int any_vex_p = is_any_vex_encoding (&i.tm);
4370 unsigned int base_opcode = i.tm.base_opcode | 1;
4374 /* Anysize insns: lea, invlpg, clflush, prefetchnta, prefetcht0,
4375 prefetcht1, prefetcht2, prefetchtw, bndmk, bndcl, bndcu, bndcn,
4376 bndstx, bndldx, prefetchwt1, clflushopt, clwb, cldemote. */
4377 if (i.tm.opcode_modifier.anysize)
4380 /* pop, popf, popa. */
4381 if (strcmp (i.tm.name, "pop") == 0
4382 || i.tm.base_opcode == 0x9d
4383 || i.tm.base_opcode == 0x61)
4386 /* movs, cmps, lods, scas. */
4387 if ((i.tm.base_opcode | 0xb) == 0xaf)
4391 if (base_opcode == 0x6f
4392 || i.tm.base_opcode == 0xd7)
4394 /* NB: For AMD-specific insns with implicit memory operands,
4395 they're intentionally not covered. */
4398 /* No memory operand. */
4399 if (!i.mem_operands)
4405 if (i.tm.base_opcode == 0xae
4406 && i.tm.opcode_modifier.vex
4407 && i.tm.opcode_modifier.vexopcode == VEX0F
4408 && i.tm.extension_opcode == 2)
4413 /* test, not, neg, mul, imul, div, idiv. */
4414 if ((i.tm.base_opcode == 0xf6 || i.tm.base_opcode == 0xf7)
4415 && i.tm.extension_opcode != 1)
4419 if (base_opcode == 0xff && i.tm.extension_opcode <= 1)
4422 /* add, or, adc, sbb, and, sub, xor, cmp. */
4423 if (i.tm.base_opcode >= 0x80 && i.tm.base_opcode <= 0x83)
4426 /* bt, bts, btr, btc. */
4427 if (i.tm.base_opcode == 0xfba
4428 && (i.tm.extension_opcode >= 4 && i.tm.extension_opcode <= 7))
4431 /* rol, ror, rcl, rcr, shl/sal, shr, sar. */
4432 if ((base_opcode == 0xc1
4433 || (i.tm.base_opcode >= 0xd0 && i.tm.base_opcode <= 0xd3))
4434 && i.tm.extension_opcode != 6)
4437 /* cmpxchg8b, cmpxchg16b, xrstors. */
4438 if (i.tm.base_opcode == 0xfc7
4439 && (i.tm.extension_opcode == 1 || i.tm.extension_opcode == 3))
4442 /* fxrstor, ldmxcsr, xrstor. */
4443 if (i.tm.base_opcode == 0xfae
4444 && (i.tm.extension_opcode == 1
4445 || i.tm.extension_opcode == 2
4446 || i.tm.extension_opcode == 5))
4449 /* lgdt, lidt, lmsw. */
4450 if (i.tm.base_opcode == 0xf01
4451 && (i.tm.extension_opcode == 2
4452 || i.tm.extension_opcode == 3
4453 || i.tm.extension_opcode == 6))
4457 if (i.tm.base_opcode == 0xfc7
4458 && i.tm.extension_opcode == 6)
4461 /* Check for x87 instructions. */
4462 if (i.tm.base_opcode >= 0xd8 && i.tm.base_opcode <= 0xdf)
4464 /* Skip fst, fstp, fstenv, fstcw. */
4465 if (i.tm.base_opcode == 0xd9
4466 && (i.tm.extension_opcode == 2
4467 || i.tm.extension_opcode == 3
4468 || i.tm.extension_opcode == 6
4469 || i.tm.extension_opcode == 7))
4472 /* Skip fisttp, fist, fistp, fstp. */
4473 if (i.tm.base_opcode == 0xdb
4474 && (i.tm.extension_opcode == 1
4475 || i.tm.extension_opcode == 2
4476 || i.tm.extension_opcode == 3
4477 || i.tm.extension_opcode == 7))
4480 /* Skip fisttp, fst, fstp, fsave, fstsw. */
4481 if (i.tm.base_opcode == 0xdd
4482 && (i.tm.extension_opcode == 1
4483 || i.tm.extension_opcode == 2
4484 || i.tm.extension_opcode == 3
4485 || i.tm.extension_opcode == 6
4486 || i.tm.extension_opcode == 7))
4489 /* Skip fisttp, fist, fistp, fbstp, fistp. */
4490 if (i.tm.base_opcode == 0xdf
4491 && (i.tm.extension_opcode == 1
4492 || i.tm.extension_opcode == 2
4493 || i.tm.extension_opcode == 3
4494 || i.tm.extension_opcode == 6
4495 || i.tm.extension_opcode == 7))
4502 dest = i.operands - 1;
4504 /* Check fake imm8 operand and 3 source operands. */
4505 if ((i.tm.opcode_modifier.immext
4506 || i.tm.opcode_modifier.vexsources == VEX3SOURCES)
4507 && i.types[dest].bitfield.imm8)
4510 /* add, or, adc, sbb, and, sub, xor, cmp, test, xchg, xadd */
4512 && (base_opcode == 0x1
4513 || base_opcode == 0x9
4514 || base_opcode == 0x11
4515 || base_opcode == 0x19
4516 || base_opcode == 0x21
4517 || base_opcode == 0x29
4518 || base_opcode == 0x31
4519 || base_opcode == 0x39
4520 || (i.tm.base_opcode >= 0x84 && i.tm.base_opcode <= 0x87)
4521 || base_opcode == 0xfc1))
4524 /* Check for load instruction. */
4525 return (i.types[dest].bitfield.class != ClassNone
4526 || i.types[dest].bitfield.instance == Accum);
4529 /* Output lfence, 0xfaee8, after instruction. */
4532 insert_lfence_after (void)
4534 if (lfence_after_load && load_insn_p ())
4536 /* There are also two REP string instructions that require
4537 special treatment. Specifically, the compare string (CMPS)
4538 and scan string (SCAS) instructions set EFLAGS in a manner
4539 that depends on the data being compared/scanned. When used
4540 with a REP prefix, the number of iterations may therefore
4541 vary depending on this data. If the data is a program secret
4542 chosen by the adversary using an LVI method,
4543 then this data-dependent behavior may leak some aspect
4545 if (((i.tm.base_opcode | 0x1) == 0xa7
4546 || (i.tm.base_opcode | 0x1) == 0xaf)
4547 && i.prefix[REP_PREFIX])
4549 as_warn (_("`%s` changes flags which would affect control flow behavior"),
4552 char *p = frag_more (3);
4559 /* Output lfence, 0xfaee8, before instruction. */
4562 insert_lfence_before (void)
4566 if (is_any_vex_encoding (&i.tm))
4569 if (i.tm.base_opcode == 0xff
4570 && (i.tm.extension_opcode == 2 || i.tm.extension_opcode == 4))
4572 /* Insert lfence before indirect branch if needed. */
4574 if (lfence_before_indirect_branch == lfence_branch_none)
4577 if (i.operands != 1)
4580 if (i.reg_operands == 1)
4582 /* Indirect branch via register. Don't insert lfence with
4583 -mlfence-after-load=yes. */
4584 if (lfence_after_load
4585 || lfence_before_indirect_branch == lfence_branch_memory)
4588 else if (i.mem_operands == 1
4589 && lfence_before_indirect_branch != lfence_branch_register)
4591 as_warn (_("indirect `%s` with memory operand should be avoided"),
4598 if (last_insn.kind != last_insn_other
4599 && last_insn.seg == now_seg)
4601 as_warn_where (last_insn.file, last_insn.line,
4602 _("`%s` skips -mlfence-before-indirect-branch on `%s`"),
4603 last_insn.name, i.tm.name);
4614 /* Output or/not/shl and lfence before near ret. */
4615 if (lfence_before_ret != lfence_before_ret_none
4616 && (i.tm.base_opcode == 0xc2
4617 || i.tm.base_opcode == 0xc3))
4619 if (last_insn.kind != last_insn_other
4620 && last_insn.seg == now_seg)
4622 as_warn_where (last_insn.file, last_insn.line,
4623 _("`%s` skips -mlfence-before-ret on `%s`"),
4624 last_insn.name, i.tm.name);
4628 /* Near ret ingore operand size override under CPU64. */
4629 char prefix = flag_code == CODE_64BIT
4631 : i.prefix[DATA_PREFIX] ? 0x66 : 0x0;
4633 if (lfence_before_ret == lfence_before_ret_not)
4635 /* not: 0xf71424, may add prefix
4636 for operand size override or 64-bit code. */
4637 p = frag_more ((prefix ? 2 : 0) + 6 + 3);
4651 p = frag_more ((prefix ? 1 : 0) + 4 + 3);
4654 if (lfence_before_ret == lfence_before_ret_or)
4656 /* or: 0x830c2400, may add prefix
4657 for operand size override or 64-bit code. */
4663 /* shl: 0xc1242400, may add prefix
4664 for operand size override or 64-bit code. */
4679 /* This is the guts of the machine-dependent assembler. LINE points to a
4680 machine dependent instruction. This function is supposed to emit
4681 the frags/bytes it assembles to. */
4684 md_assemble (char *line)
4687 char mnemonic[MAX_MNEM_SIZE], mnem_suffix;
4688 const insn_template *t;
4690 /* Initialize globals. */
4691 memset (&i, '\0', sizeof (i));
4692 for (j = 0; j < MAX_OPERANDS; j++)
4693 i.reloc[j] = NO_RELOC;
4694 memset (disp_expressions, '\0', sizeof (disp_expressions));
4695 memset (im_expressions, '\0', sizeof (im_expressions));
4696 save_stack_p = save_stack;
4698 /* First parse an instruction mnemonic & call i386_operand for the operands.
4699 We assume that the scrubber has arranged it so that line[0] is the valid
4700 start of a (possibly prefixed) mnemonic. */
4702 line = parse_insn (line, mnemonic);
4705 mnem_suffix = i.suffix;
4707 line = parse_operands (line, mnemonic);
4709 xfree (i.memop1_string);
4710 i.memop1_string = NULL;
4714 /* Now we've parsed the mnemonic into a set of templates, and have the
4715 operands at hand. */
4717 /* All Intel opcodes have reversed operands except for "bound", "enter",
4718 "monitor*", "mwait*", "tpause", and "umwait". We also don't reverse
4719 intersegment "jmp" and "call" instructions with 2 immediate operands so
4720 that the immediate segment precedes the offset, as it does when in AT&T
4724 && (strcmp (mnemonic, "bound") != 0)
4725 && (strcmp (mnemonic, "invlpga") != 0)
4726 && (strncmp (mnemonic, "monitor", 7) != 0)
4727 && (strncmp (mnemonic, "mwait", 5) != 0)
4728 && (strcmp (mnemonic, "tpause") != 0)
4729 && (strcmp (mnemonic, "umwait") != 0)
4730 && !(operand_type_check (i.types[0], imm)
4731 && operand_type_check (i.types[1], imm)))
4734 /* The order of the immediates should be reversed
4735 for 2 immediates extrq and insertq instructions */
4736 if (i.imm_operands == 2
4737 && (strcmp (mnemonic, "extrq") == 0
4738 || strcmp (mnemonic, "insertq") == 0))
4739 swap_2_operands (0, 1);
4744 /* Don't optimize displacement for movabs since it only takes 64bit
4747 && i.disp_encoding != disp_encoding_32bit
4748 && (flag_code != CODE_64BIT
4749 || strcmp (mnemonic, "movabs") != 0))
4752 /* Next, we find a template that matches the given insn,
4753 making sure the overlap of the given operands types is consistent
4754 with the template operand types. */
4756 if (!(t = match_template (mnem_suffix)))
4759 if (sse_check != check_none
4760 && !i.tm.opcode_modifier.noavx
4761 && !i.tm.cpu_flags.bitfield.cpuavx
4762 && !i.tm.cpu_flags.bitfield.cpuavx512f
4763 && (i.tm.cpu_flags.bitfield.cpusse
4764 || i.tm.cpu_flags.bitfield.cpusse2
4765 || i.tm.cpu_flags.bitfield.cpusse3
4766 || i.tm.cpu_flags.bitfield.cpussse3
4767 || i.tm.cpu_flags.bitfield.cpusse4_1
4768 || i.tm.cpu_flags.bitfield.cpusse4_2
4769 || i.tm.cpu_flags.bitfield.cpupclmul
4770 || i.tm.cpu_flags.bitfield.cpuaes
4771 || i.tm.cpu_flags.bitfield.cpusha
4772 || i.tm.cpu_flags.bitfield.cpugfni))
4774 (sse_check == check_warning
4776 : as_bad) (_("SSE instruction `%s' is used"), i.tm.name);
4779 if (i.tm.opcode_modifier.fwait)
4780 if (!add_prefix (FWAIT_OPCODE))
4783 /* Check if REP prefix is OK. */
4784 if (i.rep_prefix && !i.tm.opcode_modifier.repprefixok)
4786 as_bad (_("invalid instruction `%s' after `%s'"),
4787 i.tm.name, i.rep_prefix);
4791 /* Check for lock without a lockable instruction. Destination operand
4792 must be memory unless it is xchg (0x86). */
4793 if (i.prefix[LOCK_PREFIX]
4794 && (!i.tm.opcode_modifier.islockable
4795 || i.mem_operands == 0
4796 || (i.tm.base_opcode != 0x86
4797 && !(i.flags[i.operands - 1] & Operand_Mem))))
4799 as_bad (_("expecting lockable instruction after `lock'"));
4803 /* Check for data size prefix on VEX/XOP/EVEX encoded and SIMD insns. */
4804 if (i.prefix[DATA_PREFIX]
4805 && (is_any_vex_encoding (&i.tm)
4806 || i.tm.operand_types[i.imm_operands].bitfield.class >= RegMMX
4807 || i.tm.operand_types[i.imm_operands + 1].bitfield.class >= RegMMX))
4809 as_bad (_("data size prefix invalid with `%s'"), i.tm.name);
4813 /* Check if HLE prefix is OK. */
4814 if (i.hle_prefix && !check_hle ())
4817 /* Check BND prefix. */
4818 if (i.bnd_prefix && !i.tm.opcode_modifier.bndprefixok)
4819 as_bad (_("expecting valid branch instruction after `bnd'"));
4821 /* Check NOTRACK prefix. */
4822 if (i.notrack_prefix && !i.tm.opcode_modifier.notrackprefixok)
4823 as_bad (_("expecting indirect branch instruction after `notrack'"));
4825 if (i.tm.cpu_flags.bitfield.cpumpx)
4827 if (flag_code == CODE_64BIT && i.prefix[ADDR_PREFIX])
4828 as_bad (_("32-bit address isn't allowed in 64-bit MPX instructions."));
4829 else if (flag_code != CODE_16BIT
4830 ? i.prefix[ADDR_PREFIX]
4831 : i.mem_operands && !i.prefix[ADDR_PREFIX])
4832 as_bad (_("16-bit address isn't allowed in MPX instructions"));
4835 /* Insert BND prefix. */
4836 if (add_bnd_prefix && i.tm.opcode_modifier.bndprefixok)
4838 if (!i.prefix[BND_PREFIX])
4839 add_prefix (BND_PREFIX_OPCODE);
4840 else if (i.prefix[BND_PREFIX] != BND_PREFIX_OPCODE)
4842 as_warn (_("replacing `rep'/`repe' prefix by `bnd'"));
4843 i.prefix[BND_PREFIX] = BND_PREFIX_OPCODE;
4847 /* Check string instruction segment overrides. */
4848 if (i.tm.opcode_modifier.isstring >= IS_STRING_ES_OP0)
4850 gas_assert (i.mem_operands);
4851 if (!check_string ())
4853 i.disp_operands = 0;
4856 if (optimize && !i.no_optimize && i.tm.opcode_modifier.optimize)
4857 optimize_encoding ();
4859 if (!process_suffix ())
4862 /* Update operand types and check extended states. */
4863 for (j = 0; j < i.operands; j++)
4865 i.types[j] = operand_type_and (i.types[j], i.tm.operand_types[j]);
4866 switch (i.tm.operand_types[j].bitfield.class)
4871 i.xstate |= xstate_mmx;
4874 i.xstate |= xstate_zmm;
4877 if (i.tm.operand_types[j].bitfield.tmmword)
4878 i.xstate |= xstate_tmm;
4879 else if (i.tm.operand_types[j].bitfield.zmmword)
4880 i.xstate |= xstate_zmm;
4881 else if (i.tm.operand_types[j].bitfield.ymmword)
4882 i.xstate |= xstate_ymm;
4883 else if (i.tm.operand_types[j].bitfield.xmmword)
4884 i.xstate |= xstate_xmm;
4889 /* Make still unresolved immediate matches conform to size of immediate
4890 given in i.suffix. */
4891 if (!finalize_imm ())
4894 if (i.types[0].bitfield.imm1)
4895 i.imm_operands = 0; /* kludge for shift insns. */
4897 /* We only need to check those implicit registers for instructions
4898 with 3 operands or less. */
4899 if (i.operands <= 3)
4900 for (j = 0; j < i.operands; j++)
4901 if (i.types[j].bitfield.instance != InstanceNone
4902 && !i.types[j].bitfield.xmmword)
4905 /* For insns with operands there are more diddles to do to the opcode. */
4908 if (!process_operands ())
4911 else if (!quiet_warnings && i.tm.opcode_modifier.ugh)
4913 /* UnixWare fsub no args is alias for fsubp, fadd -> faddp, etc. */
4914 as_warn (_("translating to `%sp'"), i.tm.name);
4917 if (is_any_vex_encoding (&i.tm))
4919 if (!cpu_arch_flags.bitfield.cpui286)
4921 as_bad (_("instruction `%s' isn't supported outside of protected mode."),
4926 /* Check for explicit REX prefix. */
4927 if (i.prefix[REX_PREFIX] || i.rex_encoding)
4929 as_bad (_("REX prefix invalid with `%s'"), i.tm.name);
4933 if (i.tm.opcode_modifier.vex)
4934 build_vex_prefix (t);
4936 build_evex_prefix ();
4938 /* The individual REX.RXBW bits got consumed. */
4939 i.rex &= REX_OPCODE;
4942 /* Handle conversion of 'int $3' --> special int3 insn. XOP or FMA4
4943 instructions may define INT_OPCODE as well, so avoid this corner
4944 case for those instructions that use MODRM. */
4945 if (i.tm.base_opcode == INT_OPCODE
4946 && !i.tm.opcode_modifier.modrm
4947 && i.op[0].imms->X_add_number == 3)
4949 i.tm.base_opcode = INT3_OPCODE;
4953 if ((i.tm.opcode_modifier.jump == JUMP
4954 || i.tm.opcode_modifier.jump == JUMP_BYTE
4955 || i.tm.opcode_modifier.jump == JUMP_DWORD)
4956 && i.op[0].disps->X_op == O_constant)
4958 /* Convert "jmp constant" (and "call constant") to a jump (call) to
4959 the absolute address given by the constant. Since ix86 jumps and
4960 calls are pc relative, we need to generate a reloc. */
4961 i.op[0].disps->X_add_symbol = &abs_symbol;
4962 i.op[0].disps->X_op = O_symbol;
4965 /* For 8 bit registers we need an empty rex prefix. Also if the
4966 instruction already has a prefix, we need to convert old
4967 registers to new ones. */
4969 if ((i.types[0].bitfield.class == Reg && i.types[0].bitfield.byte
4970 && (i.op[0].regs->reg_flags & RegRex64) != 0)
4971 || (i.types[1].bitfield.class == Reg && i.types[1].bitfield.byte
4972 && (i.op[1].regs->reg_flags & RegRex64) != 0)
4973 || (((i.types[0].bitfield.class == Reg && i.types[0].bitfield.byte)
4974 || (i.types[1].bitfield.class == Reg && i.types[1].bitfield.byte))
4979 i.rex |= REX_OPCODE;
4980 for (x = 0; x < 2; x++)
4982 /* Look for 8 bit operand that uses old registers. */
4983 if (i.types[x].bitfield.class == Reg && i.types[x].bitfield.byte
4984 && (i.op[x].regs->reg_flags & RegRex64) == 0)
4986 gas_assert (!(i.op[x].regs->reg_flags & RegRex));
4987 /* In case it is "hi" register, give up. */
4988 if (i.op[x].regs->reg_num > 3)
4989 as_bad (_("can't encode register '%s%s' in an "
4990 "instruction requiring REX prefix."),
4991 register_prefix, i.op[x].regs->reg_name);
4993 /* Otherwise it is equivalent to the extended register.
4994 Since the encoding doesn't change this is merely
4995 cosmetic cleanup for debug output. */
4997 i.op[x].regs = i.op[x].regs + 8;
5002 if (i.rex == 0 && i.rex_encoding)
5004 /* Check if we can add a REX_OPCODE byte. Look for 8 bit operand
5005 that uses legacy register. If it is "hi" register, don't add
5006 the REX_OPCODE byte. */
5008 for (x = 0; x < 2; x++)
5009 if (i.types[x].bitfield.class == Reg
5010 && i.types[x].bitfield.byte
5011 && (i.op[x].regs->reg_flags & RegRex64) == 0
5012 && i.op[x].regs->reg_num > 3)
5014 gas_assert (!(i.op[x].regs->reg_flags & RegRex));
5015 i.rex_encoding = FALSE;
5024 add_prefix (REX_OPCODE | i.rex);
5026 insert_lfence_before ();
5028 /* We are ready to output the insn. */
5031 insert_lfence_after ();
5033 last_insn.seg = now_seg;
5035 if (i.tm.opcode_modifier.isprefix)
5037 last_insn.kind = last_insn_prefix;
5038 last_insn.name = i.tm.name;
5039 last_insn.file = as_where (&last_insn.line);
5042 last_insn.kind = last_insn_other;
5046 parse_insn (char *line, char *mnemonic)
5049 char *token_start = l;
5052 const insn_template *t;
5058 while ((*mnem_p = mnemonic_chars[(unsigned char) *l]) != 0)
5063 if (mnem_p >= mnemonic + MAX_MNEM_SIZE)
5065 as_bad (_("no such instruction: `%s'"), token_start);
5070 if (!is_space_char (*l)
5071 && *l != END_OF_INSN
5073 || (*l != PREFIX_SEPARATOR
5076 as_bad (_("invalid character %s in mnemonic"),
5077 output_invalid (*l));
5080 if (token_start == l)
5082 if (!intel_syntax && *l == PREFIX_SEPARATOR)
5083 as_bad (_("expecting prefix; got nothing"));
5085 as_bad (_("expecting mnemonic; got nothing"));
5089 /* Look up instruction (or prefix) via hash table. */
5090 current_templates = (const templates *) hash_find (op_hash, mnemonic);
5092 if (*l != END_OF_INSN
5093 && (!is_space_char (*l) || l[1] != END_OF_INSN)
5094 && current_templates
5095 && current_templates->start->opcode_modifier.isprefix)
5097 if (!cpu_flags_check_cpu64 (current_templates->start->cpu_flags))
5099 as_bad ((flag_code != CODE_64BIT
5100 ? _("`%s' is only supported in 64-bit mode")
5101 : _("`%s' is not supported in 64-bit mode")),
5102 current_templates->start->name);
5105 /* If we are in 16-bit mode, do not allow addr16 or data16.
5106 Similarly, in 32-bit mode, do not allow addr32 or data32. */
5107 if ((current_templates->start->opcode_modifier.size == SIZE16
5108 || current_templates->start->opcode_modifier.size == SIZE32)
5109 && flag_code != CODE_64BIT
5110 && ((current_templates->start->opcode_modifier.size == SIZE32)
5111 ^ (flag_code == CODE_16BIT)))
5113 as_bad (_("redundant %s prefix"),
5114 current_templates->start->name);
5117 if (current_templates->start->opcode_length == 0)
5119 /* Handle pseudo prefixes. */
5120 switch (current_templates->start->base_opcode)
5124 i.disp_encoding = disp_encoding_8bit;
5128 i.disp_encoding = disp_encoding_32bit;
5132 i.dir_encoding = dir_encoding_load;
5136 i.dir_encoding = dir_encoding_store;
5140 i.vec_encoding = vex_encoding_vex;
5144 i.vec_encoding = vex_encoding_vex3;
5148 i.vec_encoding = vex_encoding_evex;
5152 i.rex_encoding = TRUE;
5156 i.no_optimize = TRUE;
5164 /* Add prefix, checking for repeated prefixes. */
5165 switch (add_prefix (current_templates->start->base_opcode))
5170 if (current_templates->start->cpu_flags.bitfield.cpuibt)
5171 i.notrack_prefix = current_templates->start->name;
5174 if (current_templates->start->cpu_flags.bitfield.cpuhle)
5175 i.hle_prefix = current_templates->start->name;
5176 else if (current_templates->start->cpu_flags.bitfield.cpumpx)
5177 i.bnd_prefix = current_templates->start->name;
5179 i.rep_prefix = current_templates->start->name;
5185 /* Skip past PREFIX_SEPARATOR and reset token_start. */
5192 if (!current_templates)
5194 /* Deprecated functionality (new code should use pseudo-prefixes instead):
5195 Check if we should swap operand or force 32bit displacement in
5197 if (mnem_p - 2 == dot_p && dot_p[1] == 's')
5198 i.dir_encoding = dir_encoding_swap;
5199 else if (mnem_p - 3 == dot_p
5202 i.disp_encoding = disp_encoding_8bit;
5203 else if (mnem_p - 4 == dot_p
5207 i.disp_encoding = disp_encoding_32bit;
5212 current_templates = (const templates *) hash_find (op_hash, mnemonic);
5215 if (!current_templates)
5218 if (mnem_p > mnemonic)
5220 /* See if we can get a match by trimming off a suffix. */
5223 case WORD_MNEM_SUFFIX:
5224 if (intel_syntax && (intel_float_operand (mnemonic) & 2))
5225 i.suffix = SHORT_MNEM_SUFFIX;
5228 case BYTE_MNEM_SUFFIX:
5229 case QWORD_MNEM_SUFFIX:
5230 i.suffix = mnem_p[-1];
5232 current_templates = (const templates *) hash_find (op_hash,
5235 case SHORT_MNEM_SUFFIX:
5236 case LONG_MNEM_SUFFIX:
5239 i.suffix = mnem_p[-1];
5241 current_templates = (const templates *) hash_find (op_hash,
5250 if (intel_float_operand (mnemonic) == 1)
5251 i.suffix = SHORT_MNEM_SUFFIX;
5253 i.suffix = LONG_MNEM_SUFFIX;
5255 current_templates = (const templates *) hash_find (op_hash,
5262 if (!current_templates)
5264 as_bad (_("no such instruction: `%s'"), token_start);
5269 if (current_templates->start->opcode_modifier.jump == JUMP
5270 || current_templates->start->opcode_modifier.jump == JUMP_BYTE)
5272 /* Check for a branch hint. We allow ",pt" and ",pn" for
5273 predict taken and predict not taken respectively.
5274 I'm not sure that branch hints actually do anything on loop
5275 and jcxz insns (JumpByte) for current Pentium4 chips. They
5276 may work in the future and it doesn't hurt to accept them
5278 if (l[0] == ',' && l[1] == 'p')
5282 if (!add_prefix (DS_PREFIX_OPCODE))
5286 else if (l[2] == 'n')
5288 if (!add_prefix (CS_PREFIX_OPCODE))
5294 /* Any other comma loses. */
5297 as_bad (_("invalid character %s in mnemonic"),
5298 output_invalid (*l));
5302 /* Check if instruction is supported on specified architecture. */
5304 for (t = current_templates->start; t < current_templates->end; ++t)
5306 supported |= cpu_flags_match (t);
5307 if (supported == CPU_FLAGS_PERFECT_MATCH)
5309 if (!cpu_arch_flags.bitfield.cpui386 && (flag_code != CODE_16BIT))
5310 as_warn (_("use .code16 to ensure correct addressing mode"));
5316 if (!(supported & CPU_FLAGS_64BIT_MATCH))
5317 as_bad (flag_code == CODE_64BIT
5318 ? _("`%s' is not supported in 64-bit mode")
5319 : _("`%s' is only supported in 64-bit mode"),
5320 current_templates->start->name);
5322 as_bad (_("`%s' is not supported on `%s%s'"),
5323 current_templates->start->name,
5324 cpu_arch_name ? cpu_arch_name : default_arch,
5325 cpu_sub_arch_name ? cpu_sub_arch_name : "");
5331 parse_operands (char *l, const char *mnemonic)
5335 /* 1 if operand is pending after ','. */
5336 unsigned int expecting_operand = 0;
5338 /* Non-zero if operand parens not balanced. */
5339 unsigned int paren_not_balanced;
5341 while (*l != END_OF_INSN)
5343 /* Skip optional white space before operand. */
5344 if (is_space_char (*l))
5346 if (!is_operand_char (*l) && *l != END_OF_INSN && *l != '"')
5348 as_bad (_("invalid character %s before operand %d"),
5349 output_invalid (*l),
5353 token_start = l; /* After white space. */
5354 paren_not_balanced = 0;
5355 while (paren_not_balanced || *l != ',')
5357 if (*l == END_OF_INSN)
5359 if (paren_not_balanced)
5362 as_bad (_("unbalanced parenthesis in operand %d."),
5365 as_bad (_("unbalanced brackets in operand %d."),
5370 break; /* we are done */
5372 else if (!is_operand_char (*l) && !is_space_char (*l) && *l != '"')
5374 as_bad (_("invalid character %s in operand %d"),
5375 output_invalid (*l),
5382 ++paren_not_balanced;
5384 --paren_not_balanced;
5389 ++paren_not_balanced;
5391 --paren_not_balanced;
5395 if (l != token_start)
5396 { /* Yes, we've read in another operand. */
5397 unsigned int operand_ok;
5398 this_operand = i.operands++;
5399 if (i.operands > MAX_OPERANDS)
5401 as_bad (_("spurious operands; (%d operands/instruction max)"),
5405 i.types[this_operand].bitfield.unspecified = 1;
5406 /* Now parse operand adding info to 'i' as we go along. */
5407 END_STRING_AND_SAVE (l);
5409 if (i.mem_operands > 1)
5411 as_bad (_("too many memory references for `%s'"),
5418 i386_intel_operand (token_start,
5419 intel_float_operand (mnemonic));
5421 operand_ok = i386_att_operand (token_start);
5423 RESTORE_END_STRING (l);
5429 if (expecting_operand)
5431 expecting_operand_after_comma:
5432 as_bad (_("expecting operand after ','; got nothing"));
5437 as_bad (_("expecting operand before ','; got nothing"));
5442 /* Now *l must be either ',' or END_OF_INSN. */
5445 if (*++l == END_OF_INSN)
5447 /* Just skip it, if it's \n complain. */
5448 goto expecting_operand_after_comma;
5450 expecting_operand = 1;
5457 swap_2_operands (int xchg1, int xchg2)
5459 union i386_op temp_op;
5460 i386_operand_type temp_type;
5461 unsigned int temp_flags;
5462 enum bfd_reloc_code_real temp_reloc;
5464 temp_type = i.types[xchg2];
5465 i.types[xchg2] = i.types[xchg1];
5466 i.types[xchg1] = temp_type;
5468 temp_flags = i.flags[xchg2];
5469 i.flags[xchg2] = i.flags[xchg1];
5470 i.flags[xchg1] = temp_flags;
5472 temp_op = i.op[xchg2];
5473 i.op[xchg2] = i.op[xchg1];
5474 i.op[xchg1] = temp_op;
5476 temp_reloc = i.reloc[xchg2];
5477 i.reloc[xchg2] = i.reloc[xchg1];
5478 i.reloc[xchg1] = temp_reloc;
5482 if (i.mask->operand == xchg1)
5483 i.mask->operand = xchg2;
5484 else if (i.mask->operand == xchg2)
5485 i.mask->operand = xchg1;
5489 if (i.broadcast->operand == xchg1)
5490 i.broadcast->operand = xchg2;
5491 else if (i.broadcast->operand == xchg2)
5492 i.broadcast->operand = xchg1;
5496 if (i.rounding->operand == xchg1)
5497 i.rounding->operand = xchg2;
5498 else if (i.rounding->operand == xchg2)
5499 i.rounding->operand = xchg1;
5504 swap_operands (void)
5510 swap_2_operands (1, i.operands - 2);
5514 swap_2_operands (0, i.operands - 1);
5520 if (i.mem_operands == 2)
5522 const seg_entry *temp_seg;
5523 temp_seg = i.seg[0];
5524 i.seg[0] = i.seg[1];
5525 i.seg[1] = temp_seg;
5529 /* Try to ensure constant immediates are represented in the smallest
5534 char guess_suffix = 0;
5538 guess_suffix = i.suffix;
5539 else if (i.reg_operands)
5541 /* Figure out a suffix from the last register operand specified.
5542 We can't do this properly yet, i.e. excluding special register
5543 instances, but the following works for instructions with
5544 immediates. In any case, we can't set i.suffix yet. */
5545 for (op = i.operands; --op >= 0;)
5546 if (i.types[op].bitfield.class != Reg)
5548 else if (i.types[op].bitfield.byte)
5550 guess_suffix = BYTE_MNEM_SUFFIX;
5553 else if (i.types[op].bitfield.word)
5555 guess_suffix = WORD_MNEM_SUFFIX;
5558 else if (i.types[op].bitfield.dword)
5560 guess_suffix = LONG_MNEM_SUFFIX;
5563 else if (i.types[op].bitfield.qword)
5565 guess_suffix = QWORD_MNEM_SUFFIX;
5569 else if ((flag_code == CODE_16BIT) ^ (i.prefix[DATA_PREFIX] != 0))
5570 guess_suffix = WORD_MNEM_SUFFIX;
5572 for (op = i.operands; --op >= 0;)
5573 if (operand_type_check (i.types[op], imm))
5575 switch (i.op[op].imms->X_op)
5578 /* If a suffix is given, this operand may be shortened. */
5579 switch (guess_suffix)
5581 case LONG_MNEM_SUFFIX:
5582 i.types[op].bitfield.imm32 = 1;
5583 i.types[op].bitfield.imm64 = 1;
5585 case WORD_MNEM_SUFFIX:
5586 i.types[op].bitfield.imm16 = 1;
5587 i.types[op].bitfield.imm32 = 1;
5588 i.types[op].bitfield.imm32s = 1;
5589 i.types[op].bitfield.imm64 = 1;
5591 case BYTE_MNEM_SUFFIX:
5592 i.types[op].bitfield.imm8 = 1;
5593 i.types[op].bitfield.imm8s = 1;
5594 i.types[op].bitfield.imm16 = 1;
5595 i.types[op].bitfield.imm32 = 1;
5596 i.types[op].bitfield.imm32s = 1;
5597 i.types[op].bitfield.imm64 = 1;
5601 /* If this operand is at most 16 bits, convert it
5602 to a signed 16 bit number before trying to see
5603 whether it will fit in an even smaller size.
5604 This allows a 16-bit operand such as $0xffe0 to
5605 be recognised as within Imm8S range. */
5606 if ((i.types[op].bitfield.imm16)
5607 && (i.op[op].imms->X_add_number & ~(offsetT) 0xffff) == 0)
5609 i.op[op].imms->X_add_number =
5610 (((i.op[op].imms->X_add_number & 0xffff) ^ 0x8000) - 0x8000);
5613 /* Store 32-bit immediate in 64-bit for 64-bit BFD. */
5614 if ((i.types[op].bitfield.imm32)
5615 && ((i.op[op].imms->X_add_number & ~(((offsetT) 2 << 31) - 1))
5618 i.op[op].imms->X_add_number = ((i.op[op].imms->X_add_number
5619 ^ ((offsetT) 1 << 31))
5620 - ((offsetT) 1 << 31));
5624 = operand_type_or (i.types[op],
5625 smallest_imm_type (i.op[op].imms->X_add_number));
5627 /* We must avoid matching of Imm32 templates when 64bit
5628 only immediate is available. */
5629 if (guess_suffix == QWORD_MNEM_SUFFIX)
5630 i.types[op].bitfield.imm32 = 0;
5637 /* Symbols and expressions. */
5639 /* Convert symbolic operand to proper sizes for matching, but don't
5640 prevent matching a set of insns that only supports sizes other
5641 than those matching the insn suffix. */
5643 i386_operand_type mask, allowed;
5644 const insn_template *t;
5646 operand_type_set (&mask, 0);
5647 operand_type_set (&allowed, 0);
5649 for (t = current_templates->start;
5650 t < current_templates->end;
5653 allowed = operand_type_or (allowed, t->operand_types[op]);
5654 allowed = operand_type_and (allowed, anyimm);
5656 switch (guess_suffix)
5658 case QWORD_MNEM_SUFFIX:
5659 mask.bitfield.imm64 = 1;
5660 mask.bitfield.imm32s = 1;
5662 case LONG_MNEM_SUFFIX:
5663 mask.bitfield.imm32 = 1;
5665 case WORD_MNEM_SUFFIX:
5666 mask.bitfield.imm16 = 1;
5668 case BYTE_MNEM_SUFFIX:
5669 mask.bitfield.imm8 = 1;
5674 allowed = operand_type_and (mask, allowed);
5675 if (!operand_type_all_zero (&allowed))
5676 i.types[op] = operand_type_and (i.types[op], mask);
5683 /* Try to use the smallest displacement type too. */
5685 optimize_disp (void)
5689 for (op = i.operands; --op >= 0;)
5690 if (operand_type_check (i.types[op], disp))
5692 if (i.op[op].disps->X_op == O_constant)
5694 offsetT op_disp = i.op[op].disps->X_add_number;
5696 if (i.types[op].bitfield.disp16
5697 && (op_disp & ~(offsetT) 0xffff) == 0)
5699 /* If this operand is at most 16 bits, convert
5700 to a signed 16 bit number and don't use 64bit
5702 op_disp = (((op_disp & 0xffff) ^ 0x8000) - 0x8000);
5703 i.types[op].bitfield.disp64 = 0;
5706 /* Optimize 64-bit displacement to 32-bit for 64-bit BFD. */
5707 if (i.types[op].bitfield.disp32
5708 && (op_disp & ~(((offsetT) 2 << 31) - 1)) == 0)
5710 /* If this operand is at most 32 bits, convert
5711 to a signed 32 bit number and don't use 64bit
5713 op_disp &= (((offsetT) 2 << 31) - 1);
5714 op_disp = (op_disp ^ ((offsetT) 1 << 31)) - ((addressT) 1 << 31);
5715 i.types[op].bitfield.disp64 = 0;
5718 if (!op_disp && i.types[op].bitfield.baseindex)
5720 i.types[op].bitfield.disp8 = 0;
5721 i.types[op].bitfield.disp16 = 0;
5722 i.types[op].bitfield.disp32 = 0;
5723 i.types[op].bitfield.disp32s = 0;
5724 i.types[op].bitfield.disp64 = 0;
5728 else if (flag_code == CODE_64BIT)
5730 if (fits_in_signed_long (op_disp))
5732 i.types[op].bitfield.disp64 = 0;
5733 i.types[op].bitfield.disp32s = 1;
5735 if (i.prefix[ADDR_PREFIX]
5736 && fits_in_unsigned_long (op_disp))
5737 i.types[op].bitfield.disp32 = 1;
5739 if ((i.types[op].bitfield.disp32
5740 || i.types[op].bitfield.disp32s
5741 || i.types[op].bitfield.disp16)
5742 && fits_in_disp8 (op_disp))
5743 i.types[op].bitfield.disp8 = 1;
5745 else if (i.reloc[op] == BFD_RELOC_386_TLS_DESC_CALL
5746 || i.reloc[op] == BFD_RELOC_X86_64_TLSDESC_CALL)
5748 fix_new_exp (frag_now, frag_more (0) - frag_now->fr_literal, 0,
5749 i.op[op].disps, 0, i.reloc[op]);
5750 i.types[op].bitfield.disp8 = 0;
5751 i.types[op].bitfield.disp16 = 0;
5752 i.types[op].bitfield.disp32 = 0;
5753 i.types[op].bitfield.disp32s = 0;
5754 i.types[op].bitfield.disp64 = 0;
5757 /* We only support 64bit displacement on constants. */
5758 i.types[op].bitfield.disp64 = 0;
5762 /* Return 1 if there is a match in broadcast bytes between operand
5763 GIVEN and instruction template T. */
5766 match_broadcast_size (const insn_template *t, unsigned int given)
5768 return ((t->opcode_modifier.broadcast == BYTE_BROADCAST
5769 && i.types[given].bitfield.byte)
5770 || (t->opcode_modifier.broadcast == WORD_BROADCAST
5771 && i.types[given].bitfield.word)
5772 || (t->opcode_modifier.broadcast == DWORD_BROADCAST
5773 && i.types[given].bitfield.dword)
5774 || (t->opcode_modifier.broadcast == QWORD_BROADCAST
5775 && i.types[given].bitfield.qword));
5778 /* Check if operands are valid for the instruction. */
5781 check_VecOperands (const insn_template *t)
5786 /* Templates allowing for ZMMword as well as YMMword and/or XMMword for
5787 any one operand are implicity requiring AVX512VL support if the actual
5788 operand size is YMMword or XMMword. Since this function runs after
5789 template matching, there's no need to check for YMMword/XMMword in
5791 cpu = cpu_flags_and (t->cpu_flags, avx512);
5792 if (!cpu_flags_all_zero (&cpu)
5793 && !t->cpu_flags.bitfield.cpuavx512vl
5794 && !cpu_arch_flags.bitfield.cpuavx512vl)
5796 for (op = 0; op < t->operands; ++op)
5798 if (t->operand_types[op].bitfield.zmmword
5799 && (i.types[op].bitfield.ymmword
5800 || i.types[op].bitfield.xmmword))
5802 i.error = unsupported;
5808 /* Without VSIB byte, we can't have a vector register for index. */
5809 if (!t->opcode_modifier.sib
5811 && (i.index_reg->reg_type.bitfield.xmmword
5812 || i.index_reg->reg_type.bitfield.ymmword
5813 || i.index_reg->reg_type.bitfield.zmmword))
5815 i.error = unsupported_vector_index_register;
5819 /* Check if default mask is allowed. */
5820 if (t->opcode_modifier.nodefmask
5821 && (!i.mask || i.mask->mask->reg_num == 0))
5823 i.error = no_default_mask;
5827 /* For VSIB byte, we need a vector register for index, and all vector
5828 registers must be distinct. */
5829 if (t->opcode_modifier.sib && t->opcode_modifier.sib != SIBMEM)
5832 || !((t->opcode_modifier.sib == VECSIB128
5833 && i.index_reg->reg_type.bitfield.xmmword)
5834 || (t->opcode_modifier.sib == VECSIB256
5835 && i.index_reg->reg_type.bitfield.ymmword)
5836 || (t->opcode_modifier.sib == VECSIB512
5837 && i.index_reg->reg_type.bitfield.zmmword)))
5839 i.error = invalid_vsib_address;
5843 gas_assert (i.reg_operands == 2 || i.mask);
5844 if (i.reg_operands == 2 && !i.mask)
5846 gas_assert (i.types[0].bitfield.class == RegSIMD);
5847 gas_assert (i.types[0].bitfield.xmmword
5848 || i.types[0].bitfield.ymmword);
5849 gas_assert (i.types[2].bitfield.class == RegSIMD);
5850 gas_assert (i.types[2].bitfield.xmmword
5851 || i.types[2].bitfield.ymmword);
5852 if (operand_check == check_none)
5854 if (register_number (i.op[0].regs)
5855 != register_number (i.index_reg)
5856 && register_number (i.op[2].regs)
5857 != register_number (i.index_reg)
5858 && register_number (i.op[0].regs)
5859 != register_number (i.op[2].regs))
5861 if (operand_check == check_error)
5863 i.error = invalid_vector_register_set;
5866 as_warn (_("mask, index, and destination registers should be distinct"));
5868 else if (i.reg_operands == 1 && i.mask)
5870 if (i.types[1].bitfield.class == RegSIMD
5871 && (i.types[1].bitfield.xmmword
5872 || i.types[1].bitfield.ymmword
5873 || i.types[1].bitfield.zmmword)
5874 && (register_number (i.op[1].regs)
5875 == register_number (i.index_reg)))
5877 if (operand_check == check_error)
5879 i.error = invalid_vector_register_set;
5882 if (operand_check != check_none)
5883 as_warn (_("index and destination registers should be distinct"));
5888 /* For AMX instructions with three tmmword operands, all tmmword operand must be
5890 if (t->operand_types[0].bitfield.tmmword
5891 && i.reg_operands == 3)
5893 if (register_number (i.op[0].regs)
5894 == register_number (i.op[1].regs)
5895 || register_number (i.op[0].regs)
5896 == register_number (i.op[2].regs)
5897 || register_number (i.op[1].regs)
5898 == register_number (i.op[2].regs))
5900 i.error = invalid_tmm_register_set;
5905 /* Check if broadcast is supported by the instruction and is applied
5906 to the memory operand. */
5909 i386_operand_type type, overlap;
5911 /* Check if specified broadcast is supported in this instruction,
5912 and its broadcast bytes match the memory operand. */
5913 op = i.broadcast->operand;
5914 if (!t->opcode_modifier.broadcast
5915 || !(i.flags[op] & Operand_Mem)
5916 || (!i.types[op].bitfield.unspecified
5917 && !match_broadcast_size (t, op)))
5920 i.error = unsupported_broadcast;
5924 i.broadcast->bytes = ((1 << (t->opcode_modifier.broadcast - 1))
5925 * i.broadcast->type);
5926 operand_type_set (&type, 0);
5927 switch (i.broadcast->bytes)
5930 type.bitfield.word = 1;
5933 type.bitfield.dword = 1;
5936 type.bitfield.qword = 1;
5939 type.bitfield.xmmword = 1;
5942 type.bitfield.ymmword = 1;
5945 type.bitfield.zmmword = 1;
5951 overlap = operand_type_and (type, t->operand_types[op]);
5952 if (t->operand_types[op].bitfield.class == RegSIMD
5953 && t->operand_types[op].bitfield.byte
5954 + t->operand_types[op].bitfield.word
5955 + t->operand_types[op].bitfield.dword
5956 + t->operand_types[op].bitfield.qword > 1)
5958 overlap.bitfield.xmmword = 0;
5959 overlap.bitfield.ymmword = 0;
5960 overlap.bitfield.zmmword = 0;
5962 if (operand_type_all_zero (&overlap))
5965 if (t->opcode_modifier.checkregsize)
5969 type.bitfield.baseindex = 1;
5970 for (j = 0; j < i.operands; ++j)
5973 && !operand_type_register_match(i.types[j],
5974 t->operand_types[j],
5976 t->operand_types[op]))
5981 /* If broadcast is supported in this instruction, we need to check if
5982 operand of one-element size isn't specified without broadcast. */
5983 else if (t->opcode_modifier.broadcast && i.mem_operands)
5985 /* Find memory operand. */
5986 for (op = 0; op < i.operands; op++)
5987 if (i.flags[op] & Operand_Mem)
5989 gas_assert (op < i.operands);
5990 /* Check size of the memory operand. */
5991 if (match_broadcast_size (t, op))
5993 i.error = broadcast_needed;
5998 op = MAX_OPERANDS - 1; /* Avoid uninitialized variable warning. */
6000 /* Check if requested masking is supported. */
6003 switch (t->opcode_modifier.masking)
6007 case MERGING_MASKING:
6008 if (i.mask->zeroing)
6011 i.error = unsupported_masking;
6015 case DYNAMIC_MASKING:
6016 /* Memory destinations allow only merging masking. */
6017 if (i.mask->zeroing && i.mem_operands)
6019 /* Find memory operand. */
6020 for (op = 0; op < i.operands; op++)
6021 if (i.flags[op] & Operand_Mem)
6023 gas_assert (op < i.operands);
6024 if (op == i.operands - 1)
6026 i.error = unsupported_masking;
6036 /* Check if masking is applied to dest operand. */
6037 if (i.mask && (i.mask->operand != (int) (i.operands - 1)))
6039 i.error = mask_not_on_destination;
6046 if (!t->opcode_modifier.sae
6047 || (i.rounding->type != saeonly && !t->opcode_modifier.staticrounding))
6049 i.error = unsupported_rc_sae;
6052 /* If the instruction has several immediate operands and one of
6053 them is rounding, the rounding operand should be the last
6054 immediate operand. */
6055 if (i.imm_operands > 1
6056 && i.rounding->operand != (int) (i.imm_operands - 1))
6058 i.error = rc_sae_operand_not_last_imm;
6063 /* Check the special Imm4 cases; must be the first operand. */
6064 if (t->cpu_flags.bitfield.cpuxop && t->operands == 5)
6066 if (i.op[0].imms->X_op != O_constant
6067 || !fits_in_imm4 (i.op[0].imms->X_add_number))
6073 /* Turn off Imm<N> so that update_imm won't complain. */
6074 operand_type_set (&i.types[0], 0);
6077 /* Check vector Disp8 operand. */
6078 if (t->opcode_modifier.disp8memshift
6079 && i.disp_encoding != disp_encoding_32bit)
6082 i.memshift = t->opcode_modifier.broadcast - 1;
6083 else if (t->opcode_modifier.disp8memshift != DISP8_SHIFT_VL)
6084 i.memshift = t->opcode_modifier.disp8memshift;
6087 const i386_operand_type *type = NULL;
6090 for (op = 0; op < i.operands; op++)
6091 if (i.flags[op] & Operand_Mem)
6093 if (t->opcode_modifier.evex == EVEXLIG)
6094 i.memshift = 2 + (i.suffix == QWORD_MNEM_SUFFIX);
6095 else if (t->operand_types[op].bitfield.xmmword
6096 + t->operand_types[op].bitfield.ymmword
6097 + t->operand_types[op].bitfield.zmmword <= 1)
6098 type = &t->operand_types[op];
6099 else if (!i.types[op].bitfield.unspecified)
6100 type = &i.types[op];
6102 else if (i.types[op].bitfield.class == RegSIMD
6103 && t->opcode_modifier.evex != EVEXLIG)
6105 if (i.types[op].bitfield.zmmword)
6107 else if (i.types[op].bitfield.ymmword && i.memshift < 5)
6109 else if (i.types[op].bitfield.xmmword && i.memshift < 4)
6115 if (type->bitfield.zmmword)
6117 else if (type->bitfield.ymmword)
6119 else if (type->bitfield.xmmword)
6123 /* For the check in fits_in_disp8(). */
6124 if (i.memshift == 0)
6128 for (op = 0; op < i.operands; op++)
6129 if (operand_type_check (i.types[op], disp)
6130 && i.op[op].disps->X_op == O_constant)
6132 if (fits_in_disp8 (i.op[op].disps->X_add_number))
6134 i.types[op].bitfield.disp8 = 1;
6137 i.types[op].bitfield.disp8 = 0;
6146 /* Check if encoding requirements are met by the instruction. */
6149 VEX_check_encoding (const insn_template *t)
6151 if (i.vec_encoding == vex_encoding_error)
6153 i.error = unsupported;
6157 if (i.vec_encoding == vex_encoding_evex)
6159 /* This instruction must be encoded with EVEX prefix. */
6160 if (!is_evex_encoding (t))
6162 i.error = unsupported;
6168 if (!t->opcode_modifier.vex)
6170 /* This instruction template doesn't have VEX prefix. */
6171 if (i.vec_encoding != vex_encoding_default)
6173 i.error = unsupported;
6182 static const insn_template *
6183 match_template (char mnem_suffix)
6185 /* Points to template once we've found it. */
6186 const insn_template *t;
6187 i386_operand_type overlap0, overlap1, overlap2, overlap3;
6188 i386_operand_type overlap4;
6189 unsigned int found_reverse_match;
6190 i386_opcode_modifier suffix_check;
6191 i386_operand_type operand_types [MAX_OPERANDS];
6192 int addr_prefix_disp;
6193 unsigned int j, size_match, check_register;
6194 enum i386_error specific_error = 0;
6196 #if MAX_OPERANDS != 5
6197 # error "MAX_OPERANDS must be 5."
6200 found_reverse_match = 0;
6201 addr_prefix_disp = -1;
6203 /* Prepare for mnemonic suffix check. */
6204 memset (&suffix_check, 0, sizeof (suffix_check));
6205 switch (mnem_suffix)
6207 case BYTE_MNEM_SUFFIX:
6208 suffix_check.no_bsuf = 1;
6210 case WORD_MNEM_SUFFIX:
6211 suffix_check.no_wsuf = 1;
6213 case SHORT_MNEM_SUFFIX:
6214 suffix_check.no_ssuf = 1;
6216 case LONG_MNEM_SUFFIX:
6217 suffix_check.no_lsuf = 1;
6219 case QWORD_MNEM_SUFFIX:
6220 suffix_check.no_qsuf = 1;
6223 /* NB: In Intel syntax, normally we can check for memory operand
6224 size when there is no mnemonic suffix. But jmp and call have
6225 2 different encodings with Dword memory operand size, one with
6226 No_ldSuf and the other without. i.suffix is set to
6227 LONG_DOUBLE_MNEM_SUFFIX to skip the one with No_ldSuf. */
6228 if (i.suffix == LONG_DOUBLE_MNEM_SUFFIX)
6229 suffix_check.no_ldsuf = 1;
6232 /* Must have right number of operands. */
6233 i.error = number_of_operands_mismatch;
6235 for (t = current_templates->start; t < current_templates->end; t++)
6237 addr_prefix_disp = -1;
6238 found_reverse_match = 0;
6240 if (i.operands != t->operands)
6243 /* Check processor support. */
6244 i.error = unsupported;
6245 if (cpu_flags_match (t) != CPU_FLAGS_PERFECT_MATCH)
6248 /* Check AT&T mnemonic. */
6249 i.error = unsupported_with_intel_mnemonic;
6250 if (intel_mnemonic && t->opcode_modifier.attmnemonic)
6253 /* Check AT&T/Intel syntax. */
6254 i.error = unsupported_syntax;
6255 if ((intel_syntax && t->opcode_modifier.attsyntax)
6256 || (!intel_syntax && t->opcode_modifier.intelsyntax))
6259 /* Check Intel64/AMD64 ISA. */
6263 /* Default: Don't accept Intel64. */
6264 if (t->opcode_modifier.isa64 == INTEL64)
6268 /* -mamd64: Don't accept Intel64 and Intel64 only. */
6269 if (t->opcode_modifier.isa64 >= INTEL64)
6273 /* -mintel64: Don't accept AMD64. */
6274 if (t->opcode_modifier.isa64 == AMD64 && flag_code == CODE_64BIT)
6279 /* Check the suffix. */
6280 i.error = invalid_instruction_suffix;
6281 if ((t->opcode_modifier.no_bsuf && suffix_check.no_bsuf)
6282 || (t->opcode_modifier.no_wsuf && suffix_check.no_wsuf)
6283 || (t->opcode_modifier.no_lsuf && suffix_check.no_lsuf)
6284 || (t->opcode_modifier.no_ssuf && suffix_check.no_ssuf)
6285 || (t->opcode_modifier.no_qsuf && suffix_check.no_qsuf)
6286 || (t->opcode_modifier.no_ldsuf && suffix_check.no_ldsuf))
6289 size_match = operand_size_match (t);
6293 /* This is intentionally not
6295 if (i.jumpabsolute != (t->opcode_modifier.jump == JUMP_ABSOLUTE))
6297 as the case of a missing * on the operand is accepted (perhaps with
6298 a warning, issued further down). */
6299 if (i.jumpabsolute && t->opcode_modifier.jump != JUMP_ABSOLUTE)
6301 i.error = operand_type_mismatch;
6305 for (j = 0; j < MAX_OPERANDS; j++)
6306 operand_types[j] = t->operand_types[j];
6308 /* In general, don't allow
6309 - 64-bit operands outside of 64-bit mode,
6310 - 32-bit operands on pre-386. */
6311 j = i.imm_operands + (t->operands > i.imm_operands + 1);
6312 if (((i.suffix == QWORD_MNEM_SUFFIX
6313 && flag_code != CODE_64BIT
6314 && (t->base_opcode != 0x0fc7
6315 || t->extension_opcode != 1 /* cmpxchg8b */))
6316 || (i.suffix == LONG_MNEM_SUFFIX
6317 && !cpu_arch_flags.bitfield.cpui386))
6319 ? (t->opcode_modifier.mnemonicsize != IGNORESIZE
6320 && !intel_float_operand (t->name))
6321 : intel_float_operand (t->name) != 2)
6322 && (t->operands == i.imm_operands
6323 || (operand_types[i.imm_operands].bitfield.class != RegMMX
6324 && operand_types[i.imm_operands].bitfield.class != RegSIMD
6325 && operand_types[i.imm_operands].bitfield.class != RegMask)
6326 || (operand_types[j].bitfield.class != RegMMX
6327 && operand_types[j].bitfield.class != RegSIMD
6328 && operand_types[j].bitfield.class != RegMask))
6329 && !t->opcode_modifier.sib)
6332 /* Do not verify operands when there are none. */
6335 if (VEX_check_encoding (t))
6337 specific_error = i.error;
6341 /* We've found a match; break out of loop. */
6345 if (!t->opcode_modifier.jump
6346 || t->opcode_modifier.jump == JUMP_ABSOLUTE)
6348 /* There should be only one Disp operand. */
6349 for (j = 0; j < MAX_OPERANDS; j++)
6350 if (operand_type_check (operand_types[j], disp))
6352 if (j < MAX_OPERANDS)
6354 bfd_boolean override = (i.prefix[ADDR_PREFIX] != 0);
6356 addr_prefix_disp = j;
6358 /* Address size prefix will turn Disp64/Disp32S/Disp32/Disp16
6359 operand into Disp32/Disp32/Disp16/Disp32 operand. */
6363 override = !override;
6366 if (operand_types[j].bitfield.disp32
6367 && operand_types[j].bitfield.disp16)
6369 operand_types[j].bitfield.disp16 = override;
6370 operand_types[j].bitfield.disp32 = !override;
6372 operand_types[j].bitfield.disp32s = 0;
6373 operand_types[j].bitfield.disp64 = 0;
6377 if (operand_types[j].bitfield.disp32s
6378 || operand_types[j].bitfield.disp64)
6380 operand_types[j].bitfield.disp64 &= !override;
6381 operand_types[j].bitfield.disp32s &= !override;
6382 operand_types[j].bitfield.disp32 = override;
6384 operand_types[j].bitfield.disp16 = 0;
6390 /* Force 0x8b encoding for "mov foo@GOT, %eax". */
6391 if (i.reloc[0] == BFD_RELOC_386_GOT32 && t->base_opcode == 0xa0)
6394 /* We check register size if needed. */
6395 if (t->opcode_modifier.checkregsize)
6397 check_register = (1 << t->operands) - 1;
6399 check_register &= ~(1 << i.broadcast->operand);
6404 overlap0 = operand_type_and (i.types[0], operand_types[0]);
6405 switch (t->operands)
6408 if (!operand_type_match (overlap0, i.types[0]))
6412 /* xchg %eax, %eax is a special case. It is an alias for nop
6413 only in 32bit mode and we can use opcode 0x90. In 64bit
6414 mode, we can't use 0x90 for xchg %eax, %eax since it should
6415 zero-extend %eax to %rax. */
6416 if (flag_code == CODE_64BIT
6417 && t->base_opcode == 0x90
6418 && i.types[0].bitfield.instance == Accum
6419 && i.types[0].bitfield.dword
6420 && i.types[1].bitfield.instance == Accum
6421 && i.types[1].bitfield.dword)
6423 /* xrelease mov %eax, <disp> is another special case. It must not
6424 match the accumulator-only encoding of mov. */
6425 if (flag_code != CODE_64BIT
6427 && t->base_opcode == 0xa0
6428 && i.types[0].bitfield.instance == Accum
6429 && (i.flags[1] & Operand_Mem))
6434 if (!(size_match & MATCH_STRAIGHT))
6436 /* Reverse direction of operands if swapping is possible in the first
6437 place (operands need to be symmetric) and
6438 - the load form is requested, and the template is a store form,
6439 - the store form is requested, and the template is a load form,
6440 - the non-default (swapped) form is requested. */
6441 overlap1 = operand_type_and (operand_types[0], operand_types[1]);
6442 if (t->opcode_modifier.d && i.reg_operands == i.operands
6443 && !operand_type_all_zero (&overlap1))
6444 switch (i.dir_encoding)
6446 case dir_encoding_load:
6447 if (operand_type_check (operand_types[i.operands - 1], anymem)
6448 || t->opcode_modifier.regmem)
6452 case dir_encoding_store:
6453 if (!operand_type_check (operand_types[i.operands - 1], anymem)
6454 && !t->opcode_modifier.regmem)
6458 case dir_encoding_swap:
6461 case dir_encoding_default:
6464 /* If we want store form, we skip the current load. */
6465 if ((i.dir_encoding == dir_encoding_store
6466 || i.dir_encoding == dir_encoding_swap)
6467 && i.mem_operands == 0
6468 && t->opcode_modifier.load)
6473 overlap1 = operand_type_and (i.types[1], operand_types[1]);
6474 if (!operand_type_match (overlap0, i.types[0])
6475 || !operand_type_match (overlap1, i.types[1])
6476 || ((check_register & 3) == 3
6477 && !operand_type_register_match (i.types[0],
6482 /* Check if other direction is valid ... */
6483 if (!t->opcode_modifier.d)
6487 if (!(size_match & MATCH_REVERSE))
6489 /* Try reversing direction of operands. */
6490 overlap0 = operand_type_and (i.types[0], operand_types[i.operands - 1]);
6491 overlap1 = operand_type_and (i.types[i.operands - 1], operand_types[0]);
6492 if (!operand_type_match (overlap0, i.types[0])
6493 || !operand_type_match (overlap1, i.types[i.operands - 1])
6495 && !operand_type_register_match (i.types[0],
6496 operand_types[i.operands - 1],
6497 i.types[i.operands - 1],
6500 /* Does not match either direction. */
6503 /* found_reverse_match holds which of D or FloatR
6505 if (!t->opcode_modifier.d)
6506 found_reverse_match = 0;
6507 else if (operand_types[0].bitfield.tbyte)
6508 found_reverse_match = Opcode_FloatD;
6509 else if (operand_types[0].bitfield.xmmword
6510 || operand_types[i.operands - 1].bitfield.xmmword
6511 || operand_types[0].bitfield.class == RegMMX
6512 || operand_types[i.operands - 1].bitfield.class == RegMMX
6513 || is_any_vex_encoding(t))
6514 found_reverse_match = (t->base_opcode & 0xee) != 0x6e
6515 ? Opcode_SIMD_FloatD : Opcode_SIMD_IntD;
6517 found_reverse_match = Opcode_D;
6518 if (t->opcode_modifier.floatr)
6519 found_reverse_match |= Opcode_FloatR;
6523 /* Found a forward 2 operand match here. */
6524 switch (t->operands)
6527 overlap4 = operand_type_and (i.types[4],
6531 overlap3 = operand_type_and (i.types[3],
6535 overlap2 = operand_type_and (i.types[2],
6540 switch (t->operands)
6543 if (!operand_type_match (overlap4, i.types[4])
6544 || !operand_type_register_match (i.types[3],
6551 if (!operand_type_match (overlap3, i.types[3])
6552 || ((check_register & 0xa) == 0xa
6553 && !operand_type_register_match (i.types[1],
6557 || ((check_register & 0xc) == 0xc
6558 && !operand_type_register_match (i.types[2],
6565 /* Here we make use of the fact that there are no
6566 reverse match 3 operand instructions. */
6567 if (!operand_type_match (overlap2, i.types[2])
6568 || ((check_register & 5) == 5
6569 && !operand_type_register_match (i.types[0],
6573 || ((check_register & 6) == 6
6574 && !operand_type_register_match (i.types[1],
6582 /* Found either forward/reverse 2, 3 or 4 operand match here:
6583 slip through to break. */
6586 /* Check if vector operands are valid. */
6587 if (check_VecOperands (t))
6589 specific_error = i.error;
6593 /* Check if VEX/EVEX encoding requirements can be satisfied. */
6594 if (VEX_check_encoding (t))
6596 specific_error = i.error;
6600 /* We've found a match; break out of loop. */
6604 if (t == current_templates->end)
6606 /* We found no match. */
6607 const char *err_msg;
6608 switch (specific_error ? specific_error : i.error)
6612 case operand_size_mismatch:
6613 err_msg = _("operand size mismatch");
6615 case operand_type_mismatch:
6616 err_msg = _("operand type mismatch");
6618 case register_type_mismatch:
6619 err_msg = _("register type mismatch");
6621 case number_of_operands_mismatch:
6622 err_msg = _("number of operands mismatch");
6624 case invalid_instruction_suffix:
6625 err_msg = _("invalid instruction suffix");
6628 err_msg = _("constant doesn't fit in 4 bits");
6630 case unsupported_with_intel_mnemonic:
6631 err_msg = _("unsupported with Intel mnemonic");
6633 case unsupported_syntax:
6634 err_msg = _("unsupported syntax");
6637 as_bad (_("unsupported instruction `%s'"),
6638 current_templates->start->name);
6640 case invalid_sib_address:
6641 err_msg = _("invalid SIB address");
6643 case invalid_vsib_address:
6644 err_msg = _("invalid VSIB address");
6646 case invalid_vector_register_set:
6647 err_msg = _("mask, index, and destination registers must be distinct");
6649 case invalid_tmm_register_set:
6650 err_msg = _("all tmm registers must be distinct");
6652 case unsupported_vector_index_register:
6653 err_msg = _("unsupported vector index register");
6655 case unsupported_broadcast:
6656 err_msg = _("unsupported broadcast");
6658 case broadcast_needed:
6659 err_msg = _("broadcast is needed for operand of such type");
6661 case unsupported_masking:
6662 err_msg = _("unsupported masking");
6664 case mask_not_on_destination:
6665 err_msg = _("mask not on destination operand");
6667 case no_default_mask:
6668 err_msg = _("default mask isn't allowed");
6670 case unsupported_rc_sae:
6671 err_msg = _("unsupported static rounding/sae");
6673 case rc_sae_operand_not_last_imm:
6675 err_msg = _("RC/SAE operand must precede immediate operands");
6677 err_msg = _("RC/SAE operand must follow immediate operands");
6679 case invalid_register_operand:
6680 err_msg = _("invalid register operand");
6683 as_bad (_("%s for `%s'"), err_msg,
6684 current_templates->start->name);
6688 if (!quiet_warnings)
6691 && (i.jumpabsolute != (t->opcode_modifier.jump == JUMP_ABSOLUTE)))
6692 as_warn (_("indirect %s without `*'"), t->name);
6694 if (t->opcode_modifier.isprefix
6695 && t->opcode_modifier.mnemonicsize == IGNORESIZE)
6697 /* Warn them that a data or address size prefix doesn't
6698 affect assembly of the next line of code. */
6699 as_warn (_("stand-alone `%s' prefix"), t->name);
6703 /* Copy the template we found. */
6706 if (addr_prefix_disp != -1)
6707 i.tm.operand_types[addr_prefix_disp]
6708 = operand_types[addr_prefix_disp];
6710 if (found_reverse_match)
6712 /* If we found a reverse match we must alter the opcode direction
6713 bit and clear/flip the regmem modifier one. found_reverse_match
6714 holds bits to change (different for int & float insns). */
6716 i.tm.base_opcode ^= found_reverse_match;
6718 i.tm.operand_types[0] = operand_types[i.operands - 1];
6719 i.tm.operand_types[i.operands - 1] = operand_types[0];
6721 /* Certain SIMD insns have their load forms specified in the opcode
6722 table, and hence we need to _set_ RegMem instead of clearing it.
6723 We need to avoid setting the bit though on insns like KMOVW. */
6724 i.tm.opcode_modifier.regmem
6725 = i.tm.opcode_modifier.modrm && i.tm.opcode_modifier.d
6726 && i.tm.operands > 2U - i.tm.opcode_modifier.sse2avx
6727 && !i.tm.opcode_modifier.regmem;
6736 unsigned int es_op = i.tm.opcode_modifier.isstring - IS_STRING_ES_OP0;
6737 unsigned int op = i.tm.operand_types[0].bitfield.baseindex ? es_op : 0;
6739 if (i.seg[op] != NULL && i.seg[op] != &es)
6741 as_bad (_("`%s' operand %u must use `%ses' segment"),
6743 intel_syntax ? i.tm.operands - es_op : es_op + 1,
6748 /* There's only ever one segment override allowed per instruction.
6749 This instruction possibly has a legal segment override on the
6750 second operand, so copy the segment to where non-string
6751 instructions store it, allowing common code. */
6752 i.seg[op] = i.seg[1];
6758 process_suffix (void)
6760 /* If matched instruction specifies an explicit instruction mnemonic
6762 if (i.tm.opcode_modifier.size == SIZE16)
6763 i.suffix = WORD_MNEM_SUFFIX;
6764 else if (i.tm.opcode_modifier.size == SIZE32)
6765 i.suffix = LONG_MNEM_SUFFIX;
6766 else if (i.tm.opcode_modifier.size == SIZE64)
6767 i.suffix = QWORD_MNEM_SUFFIX;
6768 else if (i.reg_operands
6769 && (i.operands > 1 || i.types[0].bitfield.class == Reg)
6770 && !i.tm.opcode_modifier.addrprefixopreg)
6772 unsigned int numop = i.operands;
6774 /* movsx/movzx want only their source operand considered here, for the
6775 ambiguity checking below. The suffix will be replaced afterwards
6776 to represent the destination (register). */
6777 if (((i.tm.base_opcode | 8) == 0xfbe && i.tm.opcode_modifier.w)
6778 || (i.tm.base_opcode == 0x63 && i.tm.cpu_flags.bitfield.cpu64))
6781 /* crc32 needs REX.W set regardless of suffix / source operand size. */
6782 if (i.tm.base_opcode == 0xf20f38f0
6783 && i.tm.operand_types[1].bitfield.qword)
6786 /* If there's no instruction mnemonic suffix we try to invent one
6787 based on GPR operands. */
6790 /* We take i.suffix from the last register operand specified,
6791 Destination register type is more significant than source
6792 register type. crc32 in SSE4.2 prefers source register
6794 unsigned int op = i.tm.base_opcode != 0xf20f38f0 ? i.operands : 1;
6797 if (i.tm.operand_types[op].bitfield.instance == InstanceNone
6798 || i.tm.operand_types[op].bitfield.instance == Accum)
6800 if (i.types[op].bitfield.class != Reg)
6802 if (i.types[op].bitfield.byte)
6803 i.suffix = BYTE_MNEM_SUFFIX;
6804 else if (i.types[op].bitfield.word)
6805 i.suffix = WORD_MNEM_SUFFIX;
6806 else if (i.types[op].bitfield.dword)
6807 i.suffix = LONG_MNEM_SUFFIX;
6808 else if (i.types[op].bitfield.qword)
6809 i.suffix = QWORD_MNEM_SUFFIX;
6815 /* As an exception, movsx/movzx silently default to a byte source
6817 if ((i.tm.base_opcode | 8) == 0xfbe && i.tm.opcode_modifier.w
6818 && !i.suffix && !intel_syntax)
6819 i.suffix = BYTE_MNEM_SUFFIX;
6821 else if (i.suffix == BYTE_MNEM_SUFFIX)
6824 && i.tm.opcode_modifier.mnemonicsize == IGNORESIZE
6825 && i.tm.opcode_modifier.no_bsuf)
6827 else if (!check_byte_reg ())
6830 else if (i.suffix == LONG_MNEM_SUFFIX)
6833 && i.tm.opcode_modifier.mnemonicsize == IGNORESIZE
6834 && i.tm.opcode_modifier.no_lsuf
6835 && !i.tm.opcode_modifier.todword
6836 && !i.tm.opcode_modifier.toqword)
6838 else if (!check_long_reg ())
6841 else if (i.suffix == QWORD_MNEM_SUFFIX)
6844 && i.tm.opcode_modifier.mnemonicsize == IGNORESIZE
6845 && i.tm.opcode_modifier.no_qsuf
6846 && !i.tm.opcode_modifier.todword
6847 && !i.tm.opcode_modifier.toqword)
6849 else if (!check_qword_reg ())
6852 else if (i.suffix == WORD_MNEM_SUFFIX)
6855 && i.tm.opcode_modifier.mnemonicsize == IGNORESIZE
6856 && i.tm.opcode_modifier.no_wsuf)
6858 else if (!check_word_reg ())
6861 else if (intel_syntax
6862 && i.tm.opcode_modifier.mnemonicsize == IGNORESIZE)
6863 /* Do nothing if the instruction is going to ignore the prefix. */
6868 /* Undo the movsx/movzx change done above. */
6871 else if (i.tm.opcode_modifier.mnemonicsize == DEFAULTSIZE
6874 i.suffix = stackop_size;
6875 if (stackop_size == LONG_MNEM_SUFFIX)
6877 /* stackop_size is set to LONG_MNEM_SUFFIX for the
6878 .code16gcc directive to support 16-bit mode with
6879 32-bit address. For IRET without a suffix, generate
6880 16-bit IRET (opcode 0xcf) to return from an interrupt
6882 if (i.tm.base_opcode == 0xcf)
6884 i.suffix = WORD_MNEM_SUFFIX;
6885 as_warn (_("generating 16-bit `iret' for .code16gcc directive"));
6887 /* Warn about changed behavior for segment register push/pop. */
6888 else if ((i.tm.base_opcode | 1) == 0x07)
6889 as_warn (_("generating 32-bit `%s', unlike earlier gas versions"),
6894 && (i.tm.opcode_modifier.jump == JUMP_ABSOLUTE
6895 || i.tm.opcode_modifier.jump == JUMP_BYTE
6896 || i.tm.opcode_modifier.jump == JUMP_INTERSEGMENT
6897 || (i.tm.base_opcode == 0x0f01 /* [ls][gi]dt */
6898 && i.tm.extension_opcode <= 3)))
6903 if (!i.tm.opcode_modifier.no_qsuf)
6905 if (i.tm.opcode_modifier.jump == JUMP_BYTE
6906 || i.tm.opcode_modifier.no_lsuf)
6907 i.suffix = QWORD_MNEM_SUFFIX;
6912 if (!i.tm.opcode_modifier.no_lsuf)
6913 i.suffix = LONG_MNEM_SUFFIX;
6916 if (!i.tm.opcode_modifier.no_wsuf)
6917 i.suffix = WORD_MNEM_SUFFIX;
6923 && (i.tm.opcode_modifier.mnemonicsize != DEFAULTSIZE
6924 /* Also cover lret/retf/iret in 64-bit mode. */
6925 || (flag_code == CODE_64BIT
6926 && !i.tm.opcode_modifier.no_lsuf
6927 && !i.tm.opcode_modifier.no_qsuf))
6928 && i.tm.opcode_modifier.mnemonicsize != IGNORESIZE
6929 /* Explicit sizing prefixes are assumed to disambiguate insns. */
6930 && !i.prefix[DATA_PREFIX] && !(i.prefix[REX_PREFIX] & REX_W)
6931 /* Accept FLDENV et al without suffix. */
6932 && (i.tm.opcode_modifier.no_ssuf || i.tm.opcode_modifier.floatmf))
6934 unsigned int suffixes, evex = 0;
6936 suffixes = !i.tm.opcode_modifier.no_bsuf;
6937 if (!i.tm.opcode_modifier.no_wsuf)
6939 if (!i.tm.opcode_modifier.no_lsuf)
6941 if (!i.tm.opcode_modifier.no_ldsuf)
6943 if (!i.tm.opcode_modifier.no_ssuf)
6945 if (flag_code == CODE_64BIT && !i.tm.opcode_modifier.no_qsuf)
6948 /* For [XYZ]MMWORD operands inspect operand sizes. While generally
6949 also suitable for AT&T syntax mode, it was requested that this be
6950 restricted to just Intel syntax. */
6951 if (intel_syntax && is_any_vex_encoding (&i.tm) && !i.broadcast)
6955 for (op = 0; op < i.tm.operands; ++op)
6957 if (is_evex_encoding (&i.tm)
6958 && !cpu_arch_flags.bitfield.cpuavx512vl)
6960 if (i.tm.operand_types[op].bitfield.ymmword)
6961 i.tm.operand_types[op].bitfield.xmmword = 0;
6962 if (i.tm.operand_types[op].bitfield.zmmword)
6963 i.tm.operand_types[op].bitfield.ymmword = 0;
6964 if (!i.tm.opcode_modifier.evex
6965 || i.tm.opcode_modifier.evex == EVEXDYN)
6966 i.tm.opcode_modifier.evex = EVEX512;
6969 if (i.tm.operand_types[op].bitfield.xmmword
6970 + i.tm.operand_types[op].bitfield.ymmword
6971 + i.tm.operand_types[op].bitfield.zmmword < 2)
6974 /* Any properly sized operand disambiguates the insn. */
6975 if (i.types[op].bitfield.xmmword
6976 || i.types[op].bitfield.ymmword
6977 || i.types[op].bitfield.zmmword)
6979 suffixes &= ~(7 << 6);
6984 if ((i.flags[op] & Operand_Mem)
6985 && i.tm.operand_types[op].bitfield.unspecified)
6987 if (i.tm.operand_types[op].bitfield.xmmword)
6989 if (i.tm.operand_types[op].bitfield.ymmword)
6991 if (i.tm.operand_types[op].bitfield.zmmword)
6993 if (is_evex_encoding (&i.tm))
6999 /* Are multiple suffixes / operand sizes allowed? */
7000 if (suffixes & (suffixes - 1))
7003 && (i.tm.opcode_modifier.mnemonicsize != DEFAULTSIZE
7004 || operand_check == check_error))
7006 as_bad (_("ambiguous operand size for `%s'"), i.tm.name);
7009 if (operand_check == check_error)
7011 as_bad (_("no instruction mnemonic suffix given and "
7012 "no register operands; can't size `%s'"), i.tm.name);
7015 if (operand_check == check_warning)
7016 as_warn (_("%s; using default for `%s'"),
7018 ? _("ambiguous operand size")
7019 : _("no instruction mnemonic suffix given and "
7020 "no register operands"),
7023 if (i.tm.opcode_modifier.floatmf)
7024 i.suffix = SHORT_MNEM_SUFFIX;
7025 else if ((i.tm.base_opcode | 8) == 0xfbe
7026 || (i.tm.base_opcode == 0x63
7027 && i.tm.cpu_flags.bitfield.cpu64))
7028 /* handled below */;
7030 i.tm.opcode_modifier.evex = evex;
7031 else if (flag_code == CODE_16BIT)
7032 i.suffix = WORD_MNEM_SUFFIX;
7033 else if (!i.tm.opcode_modifier.no_lsuf)
7034 i.suffix = LONG_MNEM_SUFFIX;
7036 i.suffix = QWORD_MNEM_SUFFIX;
7040 if ((i.tm.base_opcode | 8) == 0xfbe
7041 || (i.tm.base_opcode == 0x63 && i.tm.cpu_flags.bitfield.cpu64))
7043 /* In Intel syntax, movsx/movzx must have a "suffix" (checked above).
7044 In AT&T syntax, if there is no suffix (warned about above), the default
7045 will be byte extension. */
7046 if (i.tm.opcode_modifier.w && i.suffix && i.suffix != BYTE_MNEM_SUFFIX)
7047 i.tm.base_opcode |= 1;
7049 /* For further processing, the suffix should represent the destination
7050 (register). This is already the case when one was used with
7051 mov[sz][bw]*, but we need to replace it for mov[sz]x, or if there was
7052 no suffix to begin with. */
7053 if (i.tm.opcode_modifier.w || i.tm.base_opcode == 0x63 || !i.suffix)
7055 if (i.types[1].bitfield.word)
7056 i.suffix = WORD_MNEM_SUFFIX;
7057 else if (i.types[1].bitfield.qword)
7058 i.suffix = QWORD_MNEM_SUFFIX;
7060 i.suffix = LONG_MNEM_SUFFIX;
7062 i.tm.opcode_modifier.w = 0;
7066 if (!i.tm.opcode_modifier.modrm && i.reg_operands && i.tm.operands < 3)
7067 i.short_form = (i.tm.operand_types[0].bitfield.class == Reg)
7068 != (i.tm.operand_types[1].bitfield.class == Reg);
7070 /* Change the opcode based on the operand size given by i.suffix. */
7073 /* Size floating point instruction. */
7074 case LONG_MNEM_SUFFIX:
7075 if (i.tm.opcode_modifier.floatmf)
7077 i.tm.base_opcode ^= 4;
7081 case WORD_MNEM_SUFFIX:
7082 case QWORD_MNEM_SUFFIX:
7083 /* It's not a byte, select word/dword operation. */
7084 if (i.tm.opcode_modifier.w)
7087 i.tm.base_opcode |= 8;
7089 i.tm.base_opcode |= 1;
7092 case SHORT_MNEM_SUFFIX:
7093 /* Now select between word & dword operations via the operand
7094 size prefix, except for instructions that will ignore this
7096 if (i.suffix != QWORD_MNEM_SUFFIX
7097 && i.tm.opcode_modifier.mnemonicsize != IGNORESIZE
7098 && !i.tm.opcode_modifier.floatmf
7099 && !is_any_vex_encoding (&i.tm)
7100 && ((i.suffix == LONG_MNEM_SUFFIX) == (flag_code == CODE_16BIT)
7101 || (flag_code == CODE_64BIT
7102 && i.tm.opcode_modifier.jump == JUMP_BYTE)))
7104 unsigned int prefix = DATA_PREFIX_OPCODE;
7106 if (i.tm.opcode_modifier.jump == JUMP_BYTE) /* jcxz, loop */
7107 prefix = ADDR_PREFIX_OPCODE;
7109 if (!add_prefix (prefix))
7113 /* Set mode64 for an operand. */
7114 if (i.suffix == QWORD_MNEM_SUFFIX
7115 && flag_code == CODE_64BIT
7116 && !i.tm.opcode_modifier.norex64
7117 && !i.tm.opcode_modifier.vexw
7118 /* Special case for xchg %rax,%rax. It is NOP and doesn't
7120 && ! (i.operands == 2
7121 && i.tm.base_opcode == 0x90
7122 && i.tm.extension_opcode == None
7123 && i.types[0].bitfield.instance == Accum
7124 && i.types[0].bitfield.qword
7125 && i.types[1].bitfield.instance == Accum
7126 && i.types[1].bitfield.qword))
7132 /* Select word/dword/qword operation with explict data sizing prefix
7133 when there are no suitable register operands. */
7134 if (i.tm.opcode_modifier.w
7135 && (i.prefix[DATA_PREFIX] || (i.prefix[REX_PREFIX] & REX_W))
7137 || (i.reg_operands == 1
7139 && (i.tm.operand_types[0].bitfield.instance == RegC
7141 || i.tm.operand_types[0].bitfield.instance == RegD
7142 || i.tm.operand_types[1].bitfield.instance == RegD
7144 || i.tm.base_opcode == 0xf20f38f0))))
7145 i.tm.base_opcode |= 1;
7149 if (i.tm.opcode_modifier.addrprefixopreg)
7151 gas_assert (!i.suffix);
7152 gas_assert (i.reg_operands);
7154 if (i.tm.operand_types[0].bitfield.instance == Accum
7157 /* The address size override prefix changes the size of the
7159 if (flag_code == CODE_64BIT
7160 && i.op[0].regs->reg_type.bitfield.word)
7162 as_bad (_("16-bit addressing unavailable for `%s'"),
7167 if ((flag_code == CODE_32BIT
7168 ? i.op[0].regs->reg_type.bitfield.word
7169 : i.op[0].regs->reg_type.bitfield.dword)
7170 && !add_prefix (ADDR_PREFIX_OPCODE))
7175 /* Check invalid register operand when the address size override
7176 prefix changes the size of register operands. */
7178 enum { need_word, need_dword, need_qword } need;
7180 if (flag_code == CODE_32BIT)
7181 need = i.prefix[ADDR_PREFIX] ? need_word : need_dword;
7182 else if (i.prefix[ADDR_PREFIX])
7185 need = flag_code == CODE_64BIT ? need_qword : need_word;
7187 for (op = 0; op < i.operands; op++)
7189 if (i.types[op].bitfield.class != Reg)
7195 if (i.op[op].regs->reg_type.bitfield.word)
7199 if (i.op[op].regs->reg_type.bitfield.dword)
7203 if (i.op[op].regs->reg_type.bitfield.qword)
7208 as_bad (_("invalid register operand size for `%s'"),
7219 check_byte_reg (void)
7223 for (op = i.operands; --op >= 0;)
7225 /* Skip non-register operands. */
7226 if (i.types[op].bitfield.class != Reg)
7229 /* If this is an eight bit register, it's OK. If it's the 16 or
7230 32 bit version of an eight bit register, we will just use the
7231 low portion, and that's OK too. */
7232 if (i.types[op].bitfield.byte)
7235 /* I/O port address operands are OK too. */
7236 if (i.tm.operand_types[op].bitfield.instance == RegD
7237 && i.tm.operand_types[op].bitfield.word)
7240 /* crc32 only wants its source operand checked here. */
7241 if (i.tm.base_opcode == 0xf20f38f0 && op)
7244 /* Any other register is bad. */
7245 as_bad (_("`%s%s' not allowed with `%s%c'"),
7246 register_prefix, i.op[op].regs->reg_name,
7247 i.tm.name, i.suffix);
7254 check_long_reg (void)
7258 for (op = i.operands; --op >= 0;)
7259 /* Skip non-register operands. */
7260 if (i.types[op].bitfield.class != Reg)
7262 /* Reject eight bit registers, except where the template requires
7263 them. (eg. movzb) */
7264 else if (i.types[op].bitfield.byte
7265 && (i.tm.operand_types[op].bitfield.class == Reg
7266 || i.tm.operand_types[op].bitfield.instance == Accum)
7267 && (i.tm.operand_types[op].bitfield.word
7268 || i.tm.operand_types[op].bitfield.dword))
7270 as_bad (_("`%s%s' not allowed with `%s%c'"),
7272 i.op[op].regs->reg_name,
7277 /* Error if the e prefix on a general reg is missing. */
7278 else if (i.types[op].bitfield.word
7279 && (i.tm.operand_types[op].bitfield.class == Reg
7280 || i.tm.operand_types[op].bitfield.instance == Accum)
7281 && i.tm.operand_types[op].bitfield.dword)
7283 as_bad (_("incorrect register `%s%s' used with `%c' suffix"),
7284 register_prefix, i.op[op].regs->reg_name,
7288 /* Warn if the r prefix on a general reg is present. */
7289 else if (i.types[op].bitfield.qword
7290 && (i.tm.operand_types[op].bitfield.class == Reg
7291 || i.tm.operand_types[op].bitfield.instance == Accum)
7292 && i.tm.operand_types[op].bitfield.dword)
7295 && i.tm.opcode_modifier.toqword
7296 && i.types[0].bitfield.class != RegSIMD)
7298 /* Convert to QWORD. We want REX byte. */
7299 i.suffix = QWORD_MNEM_SUFFIX;
7303 as_bad (_("incorrect register `%s%s' used with `%c' suffix"),
7304 register_prefix, i.op[op].regs->reg_name,
7313 check_qword_reg (void)
7317 for (op = i.operands; --op >= 0; )
7318 /* Skip non-register operands. */
7319 if (i.types[op].bitfield.class != Reg)
7321 /* Reject eight bit registers, except where the template requires
7322 them. (eg. movzb) */
7323 else if (i.types[op].bitfield.byte
7324 && (i.tm.operand_types[op].bitfield.class == Reg
7325 || i.tm.operand_types[op].bitfield.instance == Accum)
7326 && (i.tm.operand_types[op].bitfield.word
7327 || i.tm.operand_types[op].bitfield.dword))
7329 as_bad (_("`%s%s' not allowed with `%s%c'"),
7331 i.op[op].regs->reg_name,
7336 /* Warn if the r prefix on a general reg is missing. */
7337 else if ((i.types[op].bitfield.word
7338 || i.types[op].bitfield.dword)
7339 && (i.tm.operand_types[op].bitfield.class == Reg
7340 || i.tm.operand_types[op].bitfield.instance == Accum)
7341 && i.tm.operand_types[op].bitfield.qword)
7343 /* Prohibit these changes in the 64bit mode, since the
7344 lowering is more complicated. */
7346 && i.tm.opcode_modifier.todword
7347 && i.types[0].bitfield.class != RegSIMD)
7349 /* Convert to DWORD. We don't want REX byte. */
7350 i.suffix = LONG_MNEM_SUFFIX;
7354 as_bad (_("incorrect register `%s%s' used with `%c' suffix"),
7355 register_prefix, i.op[op].regs->reg_name,
7364 check_word_reg (void)
7367 for (op = i.operands; --op >= 0;)
7368 /* Skip non-register operands. */
7369 if (i.types[op].bitfield.class != Reg)
7371 /* Reject eight bit registers, except where the template requires
7372 them. (eg. movzb) */
7373 else if (i.types[op].bitfield.byte
7374 && (i.tm.operand_types[op].bitfield.class == Reg
7375 || i.tm.operand_types[op].bitfield.instance == Accum)
7376 && (i.tm.operand_types[op].bitfield.word
7377 || i.tm.operand_types[op].bitfield.dword))
7379 as_bad (_("`%s%s' not allowed with `%s%c'"),
7381 i.op[op].regs->reg_name,
7386 /* Error if the e or r prefix on a general reg is present. */
7387 else if ((i.types[op].bitfield.dword
7388 || i.types[op].bitfield.qword)
7389 && (i.tm.operand_types[op].bitfield.class == Reg
7390 || i.tm.operand_types[op].bitfield.instance == Accum)
7391 && i.tm.operand_types[op].bitfield.word)
7393 as_bad (_("incorrect register `%s%s' used with `%c' suffix"),
7394 register_prefix, i.op[op].regs->reg_name,
7402 update_imm (unsigned int j)
7404 i386_operand_type overlap = i.types[j];
7405 if ((overlap.bitfield.imm8
7406 || overlap.bitfield.imm8s
7407 || overlap.bitfield.imm16
7408 || overlap.bitfield.imm32
7409 || overlap.bitfield.imm32s
7410 || overlap.bitfield.imm64)
7411 && !operand_type_equal (&overlap, &imm8)
7412 && !operand_type_equal (&overlap, &imm8s)
7413 && !operand_type_equal (&overlap, &imm16)
7414 && !operand_type_equal (&overlap, &imm32)
7415 && !operand_type_equal (&overlap, &imm32s)
7416 && !operand_type_equal (&overlap, &imm64))
7420 i386_operand_type temp;
7422 operand_type_set (&temp, 0);
7423 if (i.suffix == BYTE_MNEM_SUFFIX)
7425 temp.bitfield.imm8 = overlap.bitfield.imm8;
7426 temp.bitfield.imm8s = overlap.bitfield.imm8s;
7428 else if (i.suffix == WORD_MNEM_SUFFIX)
7429 temp.bitfield.imm16 = overlap.bitfield.imm16;
7430 else if (i.suffix == QWORD_MNEM_SUFFIX)
7432 temp.bitfield.imm64 = overlap.bitfield.imm64;
7433 temp.bitfield.imm32s = overlap.bitfield.imm32s;
7436 temp.bitfield.imm32 = overlap.bitfield.imm32;
7439 else if (operand_type_equal (&overlap, &imm16_32_32s)
7440 || operand_type_equal (&overlap, &imm16_32)
7441 || operand_type_equal (&overlap, &imm16_32s))
7443 if ((flag_code == CODE_16BIT) ^ (i.prefix[DATA_PREFIX] != 0))
7448 else if (i.prefix[REX_PREFIX] & REX_W)
7449 overlap = operand_type_and (overlap, imm32s);
7450 else if (i.prefix[DATA_PREFIX])
7451 overlap = operand_type_and (overlap,
7452 flag_code != CODE_16BIT ? imm16 : imm32);
7453 if (!operand_type_equal (&overlap, &imm8)
7454 && !operand_type_equal (&overlap, &imm8s)
7455 && !operand_type_equal (&overlap, &imm16)
7456 && !operand_type_equal (&overlap, &imm32)
7457 && !operand_type_equal (&overlap, &imm32s)
7458 && !operand_type_equal (&overlap, &imm64))
7460 as_bad (_("no instruction mnemonic suffix given; "
7461 "can't determine immediate size"));
7465 i.types[j] = overlap;
7475 /* Update the first 2 immediate operands. */
7476 n = i.operands > 2 ? 2 : i.operands;
7479 for (j = 0; j < n; j++)
7480 if (update_imm (j) == 0)
7483 /* The 3rd operand can't be immediate operand. */
7484 gas_assert (operand_type_check (i.types[2], imm) == 0);
7491 process_operands (void)
7493 /* Default segment register this instruction will use for memory
7494 accesses. 0 means unknown. This is only for optimizing out
7495 unnecessary segment overrides. */
7496 const seg_entry *default_seg = 0;
7498 if (i.tm.opcode_modifier.sse2avx)
7500 /* Legacy encoded insns allow explicit REX prefixes, so these prefixes
7502 i.rex |= i.prefix[REX_PREFIX] & (REX_W | REX_R | REX_X | REX_B);
7503 i.prefix[REX_PREFIX] = 0;
7506 /* ImmExt should be processed after SSE2AVX. */
7507 else if (i.tm.opcode_modifier.immext)
7510 if (i.tm.opcode_modifier.sse2avx && i.tm.opcode_modifier.vexvvvv)
7512 unsigned int dupl = i.operands;
7513 unsigned int dest = dupl - 1;
7516 /* The destination must be an xmm register. */
7517 gas_assert (i.reg_operands
7518 && MAX_OPERANDS > dupl
7519 && operand_type_equal (&i.types[dest], ®xmm));
7521 if (i.tm.operand_types[0].bitfield.instance == Accum
7522 && i.tm.operand_types[0].bitfield.xmmword)
7524 if (i.tm.opcode_modifier.vexsources == VEX3SOURCES)
7526 /* Keep xmm0 for instructions with VEX prefix and 3
7528 i.tm.operand_types[0].bitfield.instance = InstanceNone;
7529 i.tm.operand_types[0].bitfield.class = RegSIMD;
7534 /* We remove the first xmm0 and keep the number of
7535 operands unchanged, which in fact duplicates the
7537 for (j = 1; j < i.operands; j++)
7539 i.op[j - 1] = i.op[j];
7540 i.types[j - 1] = i.types[j];
7541 i.tm.operand_types[j - 1] = i.tm.operand_types[j];
7542 i.flags[j - 1] = i.flags[j];
7546 else if (i.tm.opcode_modifier.implicit1stxmm0)
7548 gas_assert ((MAX_OPERANDS - 1) > dupl
7549 && (i.tm.opcode_modifier.vexsources
7552 /* Add the implicit xmm0 for instructions with VEX prefix
7554 for (j = i.operands; j > 0; j--)
7556 i.op[j] = i.op[j - 1];
7557 i.types[j] = i.types[j - 1];
7558 i.tm.operand_types[j] = i.tm.operand_types[j - 1];
7559 i.flags[j] = i.flags[j - 1];
7562 = (const reg_entry *) hash_find (reg_hash, "xmm0");
7563 i.types[0] = regxmm;
7564 i.tm.operand_types[0] = regxmm;
7567 i.reg_operands += 2;
7572 i.op[dupl] = i.op[dest];
7573 i.types[dupl] = i.types[dest];
7574 i.tm.operand_types[dupl] = i.tm.operand_types[dest];
7575 i.flags[dupl] = i.flags[dest];
7584 i.op[dupl] = i.op[dest];
7585 i.types[dupl] = i.types[dest];
7586 i.tm.operand_types[dupl] = i.tm.operand_types[dest];
7587 i.flags[dupl] = i.flags[dest];
7590 if (i.tm.opcode_modifier.immext)
7593 else if (i.tm.operand_types[0].bitfield.instance == Accum
7594 && i.tm.operand_types[0].bitfield.xmmword)
7598 for (j = 1; j < i.operands; j++)
7600 i.op[j - 1] = i.op[j];
7601 i.types[j - 1] = i.types[j];
7603 /* We need to adjust fields in i.tm since they are used by
7604 build_modrm_byte. */
7605 i.tm.operand_types [j - 1] = i.tm.operand_types [j];
7607 i.flags[j - 1] = i.flags[j];
7614 else if (i.tm.opcode_modifier.implicitquadgroup)
7616 unsigned int regnum, first_reg_in_group, last_reg_in_group;
7618 /* The second operand must be {x,y,z}mmN, where N is a multiple of 4. */
7619 gas_assert (i.operands >= 2 && i.types[1].bitfield.class == RegSIMD);
7620 regnum = register_number (i.op[1].regs);
7621 first_reg_in_group = regnum & ~3;
7622 last_reg_in_group = first_reg_in_group + 3;
7623 if (regnum != first_reg_in_group)
7624 as_warn (_("source register `%s%s' implicitly denotes"
7625 " `%s%.3s%u' to `%s%.3s%u' source group in `%s'"),
7626 register_prefix, i.op[1].regs->reg_name,
7627 register_prefix, i.op[1].regs->reg_name, first_reg_in_group,
7628 register_prefix, i.op[1].regs->reg_name, last_reg_in_group,
7631 else if (i.tm.opcode_modifier.regkludge)
7633 /* The imul $imm, %reg instruction is converted into
7634 imul $imm, %reg, %reg, and the clr %reg instruction
7635 is converted into xor %reg, %reg. */
7637 unsigned int first_reg_op;
7639 if (operand_type_check (i.types[0], reg))
7643 /* Pretend we saw the extra register operand. */
7644 gas_assert (i.reg_operands == 1
7645 && i.op[first_reg_op + 1].regs == 0);
7646 i.op[first_reg_op + 1].regs = i.op[first_reg_op].regs;
7647 i.types[first_reg_op + 1] = i.types[first_reg_op];
7652 if (i.tm.opcode_modifier.modrm)
7654 /* The opcode is completed (modulo i.tm.extension_opcode which
7655 must be put into the modrm byte). Now, we make the modrm and
7656 index base bytes based on all the info we've collected. */
7658 default_seg = build_modrm_byte ();
7660 else if (i.types[0].bitfield.class == SReg)
7662 if (flag_code != CODE_64BIT
7663 ? i.tm.base_opcode == POP_SEG_SHORT
7664 && i.op[0].regs->reg_num == 1
7665 : (i.tm.base_opcode | 1) == POP_SEG386_SHORT
7666 && i.op[0].regs->reg_num < 4)
7668 as_bad (_("you can't `%s %s%s'"),
7669 i.tm.name, register_prefix, i.op[0].regs->reg_name);
7672 if ( i.op[0].regs->reg_num > 3 && i.tm.opcode_length == 1 )
7674 i.tm.base_opcode ^= POP_SEG_SHORT ^ POP_SEG386_SHORT;
7675 i.tm.opcode_length = 2;
7677 i.tm.base_opcode |= (i.op[0].regs->reg_num << 3);
7679 else if ((i.tm.base_opcode & ~0x3) == MOV_AX_DISP32)
7683 else if (i.tm.opcode_modifier.isstring)
7685 /* For the string instructions that allow a segment override
7686 on one of their operands, the default segment is ds. */
7689 else if (i.short_form)
7691 /* The register or float register operand is in operand
7693 unsigned int op = i.tm.operand_types[0].bitfield.class != Reg;
7695 /* Register goes in low 3 bits of opcode. */
7696 i.tm.base_opcode |= i.op[op].regs->reg_num;
7697 if ((i.op[op].regs->reg_flags & RegRex) != 0)
7699 if (!quiet_warnings && i.tm.opcode_modifier.ugh)
7701 /* Warn about some common errors, but press on regardless.
7702 The first case can be generated by gcc (<= 2.8.1). */
7703 if (i.operands == 2)
7705 /* Reversed arguments on faddp, fsubp, etc. */
7706 as_warn (_("translating to `%s %s%s,%s%s'"), i.tm.name,
7707 register_prefix, i.op[!intel_syntax].regs->reg_name,
7708 register_prefix, i.op[intel_syntax].regs->reg_name);
7712 /* Extraneous `l' suffix on fp insn. */
7713 as_warn (_("translating to `%s %s%s'"), i.tm.name,
7714 register_prefix, i.op[0].regs->reg_name);
7719 if ((i.seg[0] || i.prefix[SEG_PREFIX])
7720 && i.tm.base_opcode == 0x8d /* lea */
7721 && !is_any_vex_encoding(&i.tm))
7723 if (!quiet_warnings)
7724 as_warn (_("segment override on `%s' is ineffectual"), i.tm.name);
7728 i.prefix[SEG_PREFIX] = 0;
7732 /* If a segment was explicitly specified, and the specified segment
7733 is neither the default nor the one already recorded from a prefix,
7734 use an opcode prefix to select it. If we never figured out what
7735 the default segment is, then default_seg will be zero at this
7736 point, and the specified segment prefix will always be used. */
7738 && i.seg[0] != default_seg
7739 && i.seg[0]->seg_prefix != i.prefix[SEG_PREFIX])
7741 if (!add_prefix (i.seg[0]->seg_prefix))
7747 static INLINE void set_rex_vrex (const reg_entry *r, unsigned int rex_bit,
7748 bfd_boolean do_sse2avx)
7750 if (r->reg_flags & RegRex)
7752 if (i.rex & rex_bit)
7753 as_bad (_("same type of prefix used twice"));
7756 else if (do_sse2avx && (i.rex & rex_bit) && i.vex.register_specifier)
7758 gas_assert (i.vex.register_specifier == r);
7759 i.vex.register_specifier += 8;
7762 if (r->reg_flags & RegVRex)
7766 static const seg_entry *
7767 build_modrm_byte (void)
7769 const seg_entry *default_seg = 0;
7770 unsigned int source, dest;
7773 vex_3_sources = i.tm.opcode_modifier.vexsources == VEX3SOURCES;
7776 unsigned int nds, reg_slot;
7779 dest = i.operands - 1;
7782 /* There are 2 kinds of instructions:
7783 1. 5 operands: 4 register operands or 3 register operands
7784 plus 1 memory operand plus one Imm4 operand, VexXDS, and
7785 VexW0 or VexW1. The destination must be either XMM, YMM or
7787 2. 4 operands: 4 register operands or 3 register operands
7788 plus 1 memory operand, with VexXDS. */
7789 gas_assert ((i.reg_operands == 4
7790 || (i.reg_operands == 3 && i.mem_operands == 1))
7791 && i.tm.opcode_modifier.vexvvvv == VEXXDS
7792 && i.tm.opcode_modifier.vexw
7793 && i.tm.operand_types[dest].bitfield.class == RegSIMD);
7795 /* If VexW1 is set, the first non-immediate operand is the source and
7796 the second non-immediate one is encoded in the immediate operand. */
7797 if (i.tm.opcode_modifier.vexw == VEXW1)
7799 source = i.imm_operands;
7800 reg_slot = i.imm_operands + 1;
7804 source = i.imm_operands + 1;
7805 reg_slot = i.imm_operands;
7808 if (i.imm_operands == 0)
7810 /* When there is no immediate operand, generate an 8bit
7811 immediate operand to encode the first operand. */
7812 exp = &im_expressions[i.imm_operands++];
7813 i.op[i.operands].imms = exp;
7814 i.types[i.operands] = imm8;
7817 gas_assert (i.tm.operand_types[reg_slot].bitfield.class == RegSIMD);
7818 exp->X_op = O_constant;
7819 exp->X_add_number = register_number (i.op[reg_slot].regs) << 4;
7820 gas_assert ((i.op[reg_slot].regs->reg_flags & RegVRex) == 0);
7824 gas_assert (i.imm_operands == 1);
7825 gas_assert (fits_in_imm4 (i.op[0].imms->X_add_number));
7826 gas_assert (!i.tm.opcode_modifier.immext);
7828 /* Turn on Imm8 again so that output_imm will generate it. */
7829 i.types[0].bitfield.imm8 = 1;
7831 gas_assert (i.tm.operand_types[reg_slot].bitfield.class == RegSIMD);
7832 i.op[0].imms->X_add_number
7833 |= register_number (i.op[reg_slot].regs) << 4;
7834 gas_assert ((i.op[reg_slot].regs->reg_flags & RegVRex) == 0);
7837 gas_assert (i.tm.operand_types[nds].bitfield.class == RegSIMD);
7838 i.vex.register_specifier = i.op[nds].regs;
7843 /* i.reg_operands MUST be the number of real register operands;
7844 implicit registers do not count. If there are 3 register
7845 operands, it must be a instruction with VexNDS. For a
7846 instruction with VexNDD, the destination register is encoded
7847 in VEX prefix. If there are 4 register operands, it must be
7848 a instruction with VEX prefix and 3 sources. */
7849 if (i.mem_operands == 0
7850 && ((i.reg_operands == 2
7851 && i.tm.opcode_modifier.vexvvvv <= VEXXDS)
7852 || (i.reg_operands == 3
7853 && i.tm.opcode_modifier.vexvvvv == VEXXDS)
7854 || (i.reg_operands == 4 && vex_3_sources)))
7862 /* When there are 3 operands, one of them may be immediate,
7863 which may be the first or the last operand. Otherwise,
7864 the first operand must be shift count register (cl) or it
7865 is an instruction with VexNDS. */
7866 gas_assert (i.imm_operands == 1
7867 || (i.imm_operands == 0
7868 && (i.tm.opcode_modifier.vexvvvv == VEXXDS
7869 || (i.types[0].bitfield.instance == RegC
7870 && i.types[0].bitfield.byte))));
7871 if (operand_type_check (i.types[0], imm)
7872 || (i.types[0].bitfield.instance == RegC
7873 && i.types[0].bitfield.byte))
7879 /* When there are 4 operands, the first two must be 8bit
7880 immediate operands. The source operand will be the 3rd
7883 For instructions with VexNDS, if the first operand
7884 an imm8, the source operand is the 2nd one. If the last
7885 operand is imm8, the source operand is the first one. */
7886 gas_assert ((i.imm_operands == 2
7887 && i.types[0].bitfield.imm8
7888 && i.types[1].bitfield.imm8)
7889 || (i.tm.opcode_modifier.vexvvvv == VEXXDS
7890 && i.imm_operands == 1
7891 && (i.types[0].bitfield.imm8
7892 || i.types[i.operands - 1].bitfield.imm8
7894 if (i.imm_operands == 2)
7898 if (i.types[0].bitfield.imm8)
7905 if (is_evex_encoding (&i.tm))
7907 /* For EVEX instructions, when there are 5 operands, the
7908 first one must be immediate operand. If the second one
7909 is immediate operand, the source operand is the 3th
7910 one. If the last one is immediate operand, the source
7911 operand is the 2nd one. */
7912 gas_assert (i.imm_operands == 2
7913 && i.tm.opcode_modifier.sae
7914 && operand_type_check (i.types[0], imm));
7915 if (operand_type_check (i.types[1], imm))
7917 else if (operand_type_check (i.types[4], imm))
7931 /* RC/SAE operand could be between DEST and SRC. That happens
7932 when one operand is GPR and the other one is XMM/YMM/ZMM
7934 if (i.rounding && i.rounding->operand == (int) dest)
7937 if (i.tm.opcode_modifier.vexvvvv == VEXXDS)
7939 /* For instructions with VexNDS, the register-only source
7940 operand must be a 32/64bit integer, XMM, YMM, ZMM, or mask
7941 register. It is encoded in VEX prefix. */
7943 i386_operand_type op;
7946 /* Swap two source operands if needed. */
7947 if (i.tm.opcode_modifier.swapsources)
7955 op = i.tm.operand_types[vvvv];
7956 if ((dest + 1) >= i.operands
7957 || ((op.bitfield.class != Reg
7958 || (!op.bitfield.dword && !op.bitfield.qword))
7959 && op.bitfield.class != RegSIMD
7960 && !operand_type_equal (&op, ®mask)))
7962 i.vex.register_specifier = i.op[vvvv].regs;
7968 /* One of the register operands will be encoded in the i.rm.reg
7969 field, the other in the combined i.rm.mode and i.rm.regmem
7970 fields. If no form of this instruction supports a memory
7971 destination operand, then we assume the source operand may
7972 sometimes be a memory operand and so we need to store the
7973 destination in the i.rm.reg field. */
7974 if (!i.tm.opcode_modifier.regmem
7975 && operand_type_check (i.tm.operand_types[dest], anymem) == 0)
7977 i.rm.reg = i.op[dest].regs->reg_num;
7978 i.rm.regmem = i.op[source].regs->reg_num;
7979 set_rex_vrex (i.op[dest].regs, REX_R, i.tm.opcode_modifier.sse2avx);
7980 set_rex_vrex (i.op[source].regs, REX_B, FALSE);
7984 i.rm.reg = i.op[source].regs->reg_num;
7985 i.rm.regmem = i.op[dest].regs->reg_num;
7986 set_rex_vrex (i.op[dest].regs, REX_B, i.tm.opcode_modifier.sse2avx);
7987 set_rex_vrex (i.op[source].regs, REX_R, FALSE);
7989 if (flag_code != CODE_64BIT && (i.rex & REX_R))
7991 if (i.types[!i.tm.opcode_modifier.regmem].bitfield.class != RegCR)
7994 add_prefix (LOCK_PREFIX_OPCODE);
7998 { /* If it's not 2 reg operands... */
8003 unsigned int fake_zero_displacement = 0;
8006 for (op = 0; op < i.operands; op++)
8007 if (i.flags[op] & Operand_Mem)
8009 gas_assert (op < i.operands);
8011 if (i.tm.opcode_modifier.sib)
8013 /* The index register of VSIB shouldn't be RegIZ. */
8014 if (i.tm.opcode_modifier.sib != SIBMEM
8015 && i.index_reg->reg_num == RegIZ)
8018 i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING;
8021 i.sib.base = NO_BASE_REGISTER;
8022 i.sib.scale = i.log2_scale_factor;
8023 i.types[op].bitfield.disp8 = 0;
8024 i.types[op].bitfield.disp16 = 0;
8025 i.types[op].bitfield.disp64 = 0;
8026 if (flag_code != CODE_64BIT || i.prefix[ADDR_PREFIX])
8028 /* Must be 32 bit */
8029 i.types[op].bitfield.disp32 = 1;
8030 i.types[op].bitfield.disp32s = 0;
8034 i.types[op].bitfield.disp32 = 0;
8035 i.types[op].bitfield.disp32s = 1;
8039 /* Since the mandatory SIB always has index register, so
8040 the code logic remains unchanged. The non-mandatory SIB
8041 without index register is allowed and will be handled
8045 if (i.index_reg->reg_num == RegIZ)
8046 i.sib.index = NO_INDEX_REGISTER;
8048 i.sib.index = i.index_reg->reg_num;
8049 set_rex_vrex (i.index_reg, REX_X, FALSE);
8055 if (i.base_reg == 0)
8058 if (!i.disp_operands)
8059 fake_zero_displacement = 1;
8060 if (i.index_reg == 0)
8062 i386_operand_type newdisp;
8064 /* Both check for VSIB and mandatory non-vector SIB. */
8065 gas_assert (!i.tm.opcode_modifier.sib
8066 || i.tm.opcode_modifier.sib == SIBMEM);
8067 /* Operand is just <disp> */
8068 if (flag_code == CODE_64BIT)
8070 /* 64bit mode overwrites the 32bit absolute
8071 addressing by RIP relative addressing and
8072 absolute addressing is encoded by one of the
8073 redundant SIB forms. */
8074 i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING;
8075 i.sib.base = NO_BASE_REGISTER;
8076 i.sib.index = NO_INDEX_REGISTER;
8077 newdisp = (!i.prefix[ADDR_PREFIX] ? disp32s : disp32);
8079 else if ((flag_code == CODE_16BIT)
8080 ^ (i.prefix[ADDR_PREFIX] != 0))
8082 i.rm.regmem = NO_BASE_REGISTER_16;
8087 i.rm.regmem = NO_BASE_REGISTER;
8090 i.types[op] = operand_type_and_not (i.types[op], anydisp);
8091 i.types[op] = operand_type_or (i.types[op], newdisp);
8093 else if (!i.tm.opcode_modifier.sib)
8095 /* !i.base_reg && i.index_reg */
8096 if (i.index_reg->reg_num == RegIZ)
8097 i.sib.index = NO_INDEX_REGISTER;
8099 i.sib.index = i.index_reg->reg_num;
8100 i.sib.base = NO_BASE_REGISTER;
8101 i.sib.scale = i.log2_scale_factor;
8102 i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING;
8103 i.types[op].bitfield.disp8 = 0;
8104 i.types[op].bitfield.disp16 = 0;
8105 i.types[op].bitfield.disp64 = 0;
8106 if (flag_code != CODE_64BIT || i.prefix[ADDR_PREFIX])
8108 /* Must be 32 bit */
8109 i.types[op].bitfield.disp32 = 1;
8110 i.types[op].bitfield.disp32s = 0;
8114 i.types[op].bitfield.disp32 = 0;
8115 i.types[op].bitfield.disp32s = 1;
8117 if ((i.index_reg->reg_flags & RegRex) != 0)
8121 /* RIP addressing for 64bit mode. */
8122 else if (i.base_reg->reg_num == RegIP)
8124 gas_assert (!i.tm.opcode_modifier.sib);
8125 i.rm.regmem = NO_BASE_REGISTER;
8126 i.types[op].bitfield.disp8 = 0;
8127 i.types[op].bitfield.disp16 = 0;
8128 i.types[op].bitfield.disp32 = 0;
8129 i.types[op].bitfield.disp32s = 1;
8130 i.types[op].bitfield.disp64 = 0;
8131 i.flags[op] |= Operand_PCrel;
8132 if (! i.disp_operands)
8133 fake_zero_displacement = 1;
8135 else if (i.base_reg->reg_type.bitfield.word)
8137 gas_assert (!i.tm.opcode_modifier.sib);
8138 switch (i.base_reg->reg_num)
8141 if (i.index_reg == 0)
8143 else /* (%bx,%si) -> 0, or (%bx,%di) -> 1 */
8144 i.rm.regmem = i.index_reg->reg_num - 6;
8148 if (i.index_reg == 0)
8151 if (operand_type_check (i.types[op], disp) == 0)
8153 /* fake (%bp) into 0(%bp) */
8154 if (i.disp_encoding == disp_encoding_32bit)
8155 /* NB: Use disp16 since there is no disp32
8157 i.types[op].bitfield.disp16 = 1;
8159 i.types[op].bitfield.disp8 = 1;
8160 fake_zero_displacement = 1;
8163 else /* (%bp,%si) -> 2, or (%bp,%di) -> 3 */
8164 i.rm.regmem = i.index_reg->reg_num - 6 + 2;
8166 default: /* (%si) -> 4 or (%di) -> 5 */
8167 i.rm.regmem = i.base_reg->reg_num - 6 + 4;
8169 i.rm.mode = mode_from_disp_size (i.types[op]);
8171 else /* i.base_reg and 32/64 bit mode */
8173 if (flag_code == CODE_64BIT
8174 && operand_type_check (i.types[op], disp))
8176 i.types[op].bitfield.disp16 = 0;
8177 i.types[op].bitfield.disp64 = 0;
8178 if (i.prefix[ADDR_PREFIX] == 0)
8180 i.types[op].bitfield.disp32 = 0;
8181 i.types[op].bitfield.disp32s = 1;
8185 i.types[op].bitfield.disp32 = 1;
8186 i.types[op].bitfield.disp32s = 0;
8190 if (!i.tm.opcode_modifier.sib)
8191 i.rm.regmem = i.base_reg->reg_num;
8192 if ((i.base_reg->reg_flags & RegRex) != 0)
8194 i.sib.base = i.base_reg->reg_num;
8195 /* x86-64 ignores REX prefix bit here to avoid decoder
8197 if (!(i.base_reg->reg_flags & RegRex)
8198 && (i.base_reg->reg_num == EBP_REG_NUM
8199 || i.base_reg->reg_num == ESP_REG_NUM))
8201 if (i.base_reg->reg_num == 5 && i.disp_operands == 0)
8203 fake_zero_displacement = 1;
8204 if (i.disp_encoding == disp_encoding_32bit)
8205 i.types[op].bitfield.disp32 = 1;
8207 i.types[op].bitfield.disp8 = 1;
8209 i.sib.scale = i.log2_scale_factor;
8210 if (i.index_reg == 0)
8212 /* Only check for VSIB. */
8213 gas_assert (i.tm.opcode_modifier.sib != VECSIB128
8214 && i.tm.opcode_modifier.sib != VECSIB256
8215 && i.tm.opcode_modifier.sib != VECSIB512);
8217 /* <disp>(%esp) becomes two byte modrm with no index
8218 register. We've already stored the code for esp
8219 in i.rm.regmem ie. ESCAPE_TO_TWO_BYTE_ADDRESSING.
8220 Any base register besides %esp will not use the
8221 extra modrm byte. */
8222 i.sib.index = NO_INDEX_REGISTER;
8224 else if (!i.tm.opcode_modifier.sib)
8226 if (i.index_reg->reg_num == RegIZ)
8227 i.sib.index = NO_INDEX_REGISTER;
8229 i.sib.index = i.index_reg->reg_num;
8230 i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING;
8231 if ((i.index_reg->reg_flags & RegRex) != 0)
8236 && (i.reloc[op] == BFD_RELOC_386_TLS_DESC_CALL
8237 || i.reloc[op] == BFD_RELOC_X86_64_TLSDESC_CALL))
8241 if (!fake_zero_displacement
8245 fake_zero_displacement = 1;
8246 if (i.disp_encoding == disp_encoding_8bit)
8247 i.types[op].bitfield.disp8 = 1;
8249 i.types[op].bitfield.disp32 = 1;
8251 i.rm.mode = mode_from_disp_size (i.types[op]);
8255 if (fake_zero_displacement)
8257 /* Fakes a zero displacement assuming that i.types[op]
8258 holds the correct displacement size. */
8261 gas_assert (i.op[op].disps == 0);
8262 exp = &disp_expressions[i.disp_operands++];
8263 i.op[op].disps = exp;
8264 exp->X_op = O_constant;
8265 exp->X_add_number = 0;
8266 exp->X_add_symbol = (symbolS *) 0;
8267 exp->X_op_symbol = (symbolS *) 0;
8275 if (i.tm.opcode_modifier.vexsources == XOP2SOURCES)
8277 if (operand_type_check (i.types[0], imm))
8278 i.vex.register_specifier = NULL;
8281 /* VEX.vvvv encodes one of the sources when the first
8282 operand is not an immediate. */
8283 if (i.tm.opcode_modifier.vexw == VEXW0)
8284 i.vex.register_specifier = i.op[0].regs;
8286 i.vex.register_specifier = i.op[1].regs;
8289 /* Destination is a XMM register encoded in the ModRM.reg
8291 i.rm.reg = i.op[2].regs->reg_num;
8292 if ((i.op[2].regs->reg_flags & RegRex) != 0)
8295 /* ModRM.rm and VEX.B encodes the other source. */
8296 if (!i.mem_operands)
8300 if (i.tm.opcode_modifier.vexw == VEXW0)
8301 i.rm.regmem = i.op[1].regs->reg_num;
8303 i.rm.regmem = i.op[0].regs->reg_num;
8305 if ((i.op[1].regs->reg_flags & RegRex) != 0)
8309 else if (i.tm.opcode_modifier.vexvvvv == VEXLWP)
8311 i.vex.register_specifier = i.op[2].regs;
8312 if (!i.mem_operands)
8315 i.rm.regmem = i.op[1].regs->reg_num;
8316 if ((i.op[1].regs->reg_flags & RegRex) != 0)
8320 /* Fill in i.rm.reg or i.rm.regmem field with register operand
8321 (if any) based on i.tm.extension_opcode. Again, we must be
8322 careful to make sure that segment/control/debug/test/MMX
8323 registers are coded into the i.rm.reg field. */
8324 else if (i.reg_operands)
8327 unsigned int vex_reg = ~0;
8329 for (op = 0; op < i.operands; op++)
8330 if (i.types[op].bitfield.class == Reg
8331 || i.types[op].bitfield.class == RegBND
8332 || i.types[op].bitfield.class == RegMask
8333 || i.types[op].bitfield.class == SReg
8334 || i.types[op].bitfield.class == RegCR
8335 || i.types[op].bitfield.class == RegDR
8336 || i.types[op].bitfield.class == RegTR
8337 || i.types[op].bitfield.class == RegSIMD
8338 || i.types[op].bitfield.class == RegMMX)
8343 else if (i.tm.opcode_modifier.vexvvvv == VEXXDS)
8345 /* For instructions with VexNDS, the register-only
8346 source operand is encoded in VEX prefix. */
8347 gas_assert (mem != (unsigned int) ~0);
8352 gas_assert (op < i.operands);
8356 /* Check register-only source operand when two source
8357 operands are swapped. */
8358 if (!i.tm.operand_types[op].bitfield.baseindex
8359 && i.tm.operand_types[op + 1].bitfield.baseindex)
8363 gas_assert (mem == (vex_reg + 1)
8364 && op < i.operands);
8369 gas_assert (vex_reg < i.operands);
8373 else if (i.tm.opcode_modifier.vexvvvv == VEXNDD)
8375 /* For instructions with VexNDD, the register destination
8376 is encoded in VEX prefix. */
8377 if (i.mem_operands == 0)
8379 /* There is no memory operand. */
8380 gas_assert ((op + 2) == i.operands);
8385 /* There are only 2 non-immediate operands. */
8386 gas_assert (op < i.imm_operands + 2
8387 && i.operands == i.imm_operands + 2);
8388 vex_reg = i.imm_operands + 1;
8392 gas_assert (op < i.operands);
8394 if (vex_reg != (unsigned int) ~0)
8396 i386_operand_type *type = &i.tm.operand_types[vex_reg];
8398 if ((type->bitfield.class != Reg
8399 || (!type->bitfield.dword && !type->bitfield.qword))
8400 && type->bitfield.class != RegSIMD
8401 && !operand_type_equal (type, ®mask))
8404 i.vex.register_specifier = i.op[vex_reg].regs;
8407 /* Don't set OP operand twice. */
8410 /* If there is an extension opcode to put here, the
8411 register number must be put into the regmem field. */
8412 if (i.tm.extension_opcode != None)
8414 i.rm.regmem = i.op[op].regs->reg_num;
8415 set_rex_vrex (i.op[op].regs, REX_B,
8416 i.tm.opcode_modifier.sse2avx);
8420 i.rm.reg = i.op[op].regs->reg_num;
8421 set_rex_vrex (i.op[op].regs, REX_R,
8422 i.tm.opcode_modifier.sse2avx);
8426 /* Now, if no memory operand has set i.rm.mode = 0, 1, 2 we
8427 must set it to 3 to indicate this is a register operand
8428 in the regmem field. */
8429 if (!i.mem_operands)
8433 /* Fill in i.rm.reg field with extension opcode (if any). */
8434 if (i.tm.extension_opcode != None)
8435 i.rm.reg = i.tm.extension_opcode;
8441 frag_opcode_byte (unsigned char byte)
8443 if (now_seg != absolute_section)
8444 FRAG_APPEND_1_CHAR (byte);
8446 ++abs_section_offset;
8450 flip_code16 (unsigned int code16)
8452 gas_assert (i.tm.operands == 1);
8454 return !(i.prefix[REX_PREFIX] & REX_W)
8455 && (code16 ? i.tm.operand_types[0].bitfield.disp32
8456 || i.tm.operand_types[0].bitfield.disp32s
8457 : i.tm.operand_types[0].bitfield.disp16)
8462 output_branch (void)
8468 relax_substateT subtype;
8472 if (now_seg == absolute_section)
8474 as_bad (_("relaxable branches not supported in absolute section"));
8478 code16 = flag_code == CODE_16BIT ? CODE16 : 0;
8479 size = i.disp_encoding == disp_encoding_32bit ? BIG : SMALL;
8482 if (i.prefix[DATA_PREFIX] != 0)
8486 code16 ^= flip_code16(code16);
8488 /* Pentium4 branch hints. */
8489 if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE /* not taken */
8490 || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE /* taken */)
8495 if (i.prefix[REX_PREFIX] != 0)
8501 /* BND prefixed jump. */
8502 if (i.prefix[BND_PREFIX] != 0)
8508 if (i.prefixes != 0)
8509 as_warn (_("skipping prefixes on `%s'"), i.tm.name);
8511 /* It's always a symbol; End frag & setup for relax.
8512 Make sure there is enough room in this frag for the largest
8513 instruction we may generate in md_convert_frag. This is 2
8514 bytes for the opcode and room for the prefix and largest
8516 frag_grow (prefix + 2 + 4);
8517 /* Prefix and 1 opcode byte go in fr_fix. */
8518 p = frag_more (prefix + 1);
8519 if (i.prefix[DATA_PREFIX] != 0)
8520 *p++ = DATA_PREFIX_OPCODE;
8521 if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE
8522 || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE)
8523 *p++ = i.prefix[SEG_PREFIX];
8524 if (i.prefix[BND_PREFIX] != 0)
8525 *p++ = BND_PREFIX_OPCODE;
8526 if (i.prefix[REX_PREFIX] != 0)
8527 *p++ = i.prefix[REX_PREFIX];
8528 *p = i.tm.base_opcode;
8530 if ((unsigned char) *p == JUMP_PC_RELATIVE)
8531 subtype = ENCODE_RELAX_STATE (UNCOND_JUMP, size);
8532 else if (cpu_arch_flags.bitfield.cpui386)
8533 subtype = ENCODE_RELAX_STATE (COND_JUMP, size);
8535 subtype = ENCODE_RELAX_STATE (COND_JUMP86, size);
8538 sym = i.op[0].disps->X_add_symbol;
8539 off = i.op[0].disps->X_add_number;
8541 if (i.op[0].disps->X_op != O_constant
8542 && i.op[0].disps->X_op != O_symbol)
8544 /* Handle complex expressions. */
8545 sym = make_expr_symbol (i.op[0].disps);
8549 /* 1 possible extra opcode + 4 byte displacement go in var part.
8550 Pass reloc in fr_var. */
8551 frag_var (rs_machine_dependent, 5, i.reloc[0], subtype, sym, off, p);
8554 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
8555 /* Return TRUE iff PLT32 relocation should be used for branching to
8559 need_plt32_p (symbolS *s)
8561 /* PLT32 relocation is ELF only. */
8566 /* Don't emit PLT32 relocation on Solaris: neither native linker nor
8567 krtld support it. */
8571 /* Since there is no need to prepare for PLT branch on x86-64, we
8572 can generate R_X86_64_PLT32, instead of R_X86_64_PC32, which can
8573 be used as a marker for 32-bit PC-relative branches. */
8577 /* Weak or undefined symbol need PLT32 relocation. */
8578 if (S_IS_WEAK (s) || !S_IS_DEFINED (s))
8581 /* Non-global symbol doesn't need PLT32 relocation. */
8582 if (! S_IS_EXTERNAL (s))
8585 /* Other global symbols need PLT32 relocation. NB: Symbol with
8586 non-default visibilities are treated as normal global symbol
8587 so that PLT32 relocation can be used as a marker for 32-bit
8588 PC-relative branches. It is useful for linker relaxation. */
8599 bfd_reloc_code_real_type jump_reloc = i.reloc[0];
8601 if (i.tm.opcode_modifier.jump == JUMP_BYTE)
8603 /* This is a loop or jecxz type instruction. */
8605 if (i.prefix[ADDR_PREFIX] != 0)
8607 frag_opcode_byte (ADDR_PREFIX_OPCODE);
8610 /* Pentium4 branch hints. */
8611 if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE /* not taken */
8612 || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE /* taken */)
8614 frag_opcode_byte (i.prefix[SEG_PREFIX]);
8623 if (flag_code == CODE_16BIT)
8626 if (i.prefix[DATA_PREFIX] != 0)
8628 frag_opcode_byte (DATA_PREFIX_OPCODE);
8630 code16 ^= flip_code16(code16);
8638 /* BND prefixed jump. */
8639 if (i.prefix[BND_PREFIX] != 0)
8641 frag_opcode_byte (i.prefix[BND_PREFIX]);
8645 if (i.prefix[REX_PREFIX] != 0)
8647 frag_opcode_byte (i.prefix[REX_PREFIX]);
8651 if (i.prefixes != 0)
8652 as_warn (_("skipping prefixes on `%s'"), i.tm.name);
8654 if (now_seg == absolute_section)
8656 abs_section_offset += i.tm.opcode_length + size;
8660 p = frag_more (i.tm.opcode_length + size);
8661 switch (i.tm.opcode_length)
8664 *p++ = i.tm.base_opcode >> 8;
8667 *p++ = i.tm.base_opcode;
8673 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
8675 && jump_reloc == NO_RELOC
8676 && need_plt32_p (i.op[0].disps->X_add_symbol))
8677 jump_reloc = BFD_RELOC_X86_64_PLT32;
8680 jump_reloc = reloc (size, 1, 1, jump_reloc);
8682 fixP = fix_new_exp (frag_now, p - frag_now->fr_literal, size,
8683 i.op[0].disps, 1, jump_reloc);
8685 /* All jumps handled here are signed, but don't use a signed limit
8686 check for 32 and 16 bit jumps as we want to allow wrap around at
8687 4G and 64k respectively. */
8689 fixP->fx_signed = 1;
8693 output_interseg_jump (void)
8701 if (flag_code == CODE_16BIT)
8705 if (i.prefix[DATA_PREFIX] != 0)
8712 gas_assert (!i.prefix[REX_PREFIX]);
8718 if (i.prefixes != 0)
8719 as_warn (_("skipping prefixes on `%s'"), i.tm.name);
8721 if (now_seg == absolute_section)
8723 abs_section_offset += prefix + 1 + 2 + size;
8727 /* 1 opcode; 2 segment; offset */
8728 p = frag_more (prefix + 1 + 2 + size);
8730 if (i.prefix[DATA_PREFIX] != 0)
8731 *p++ = DATA_PREFIX_OPCODE;
8733 if (i.prefix[REX_PREFIX] != 0)
8734 *p++ = i.prefix[REX_PREFIX];
8736 *p++ = i.tm.base_opcode;
8737 if (i.op[1].imms->X_op == O_constant)
8739 offsetT n = i.op[1].imms->X_add_number;
8742 && !fits_in_unsigned_word (n)
8743 && !fits_in_signed_word (n))
8745 as_bad (_("16-bit jump out of range"));
8748 md_number_to_chars (p, n, size);
8751 fix_new_exp (frag_now, p - frag_now->fr_literal, size,
8752 i.op[1].imms, 0, reloc (size, 0, 0, i.reloc[1]));
8753 if (i.op[0].imms->X_op != O_constant)
8754 as_bad (_("can't handle non absolute segment in `%s'"),
8756 md_number_to_chars (p + size, (valueT) i.op[0].imms->X_add_number, 2);
8759 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
8764 asection *seg = now_seg;
8765 subsegT subseg = now_subseg;
8767 unsigned int alignment, align_size_1;
8768 unsigned int isa_1_descsz, feature_2_descsz, descsz;
8769 unsigned int isa_1_descsz_raw, feature_2_descsz_raw;
8770 unsigned int padding;
8772 if (!IS_ELF || !x86_used_note)
8775 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_X86;
8777 /* The .note.gnu.property section layout:
8779 Field Length Contents
8782 n_descsz 4 The note descriptor size
8783 n_type 4 NT_GNU_PROPERTY_TYPE_0
8785 n_desc n_descsz The program property array
8789 /* Create the .note.gnu.property section. */
8790 sec = subseg_new (NOTE_GNU_PROPERTY_SECTION_NAME, 0);
8791 bfd_set_section_flags (sec,
8798 if (get_elf_backend_data (stdoutput)->s->elfclass == ELFCLASS64)
8809 bfd_set_section_alignment (sec, alignment);
8810 elf_section_type (sec) = SHT_NOTE;
8812 /* GNU_PROPERTY_X86_ISA_1_USED: 4-byte type + 4-byte data size
8814 isa_1_descsz_raw = 4 + 4 + 4;
8815 /* Align GNU_PROPERTY_X86_ISA_1_USED. */
8816 isa_1_descsz = (isa_1_descsz_raw + align_size_1) & ~align_size_1;
8818 feature_2_descsz_raw = isa_1_descsz;
8819 /* GNU_PROPERTY_X86_FEATURE_2_USED: 4-byte type + 4-byte data size
8821 feature_2_descsz_raw += 4 + 4 + 4;
8822 /* Align GNU_PROPERTY_X86_FEATURE_2_USED. */
8823 feature_2_descsz = ((feature_2_descsz_raw + align_size_1)
8826 descsz = feature_2_descsz;
8827 /* Section size: n_namsz + n_descsz + n_type + n_name + n_descsz. */
8828 p = frag_more (4 + 4 + 4 + 4 + descsz);
8830 /* Write n_namsz. */
8831 md_number_to_chars (p, (valueT) 4, 4);
8833 /* Write n_descsz. */
8834 md_number_to_chars (p + 4, (valueT) descsz, 4);
8837 md_number_to_chars (p + 4 * 2, (valueT) NT_GNU_PROPERTY_TYPE_0, 4);
8840 memcpy (p + 4 * 3, "GNU", 4);
8842 /* Write 4-byte type. */
8843 md_number_to_chars (p + 4 * 4,
8844 (valueT) GNU_PROPERTY_X86_ISA_1_USED, 4);
8846 /* Write 4-byte data size. */
8847 md_number_to_chars (p + 4 * 5, (valueT) 4, 4);
8849 /* Write 4-byte data. */
8850 md_number_to_chars (p + 4 * 6, (valueT) x86_isa_1_used, 4);
8852 /* Zero out paddings. */
8853 padding = isa_1_descsz - isa_1_descsz_raw;
8855 memset (p + 4 * 7, 0, padding);
8857 /* Write 4-byte type. */
8858 md_number_to_chars (p + isa_1_descsz + 4 * 4,
8859 (valueT) GNU_PROPERTY_X86_FEATURE_2_USED, 4);
8861 /* Write 4-byte data size. */
8862 md_number_to_chars (p + isa_1_descsz + 4 * 5, (valueT) 4, 4);
8864 /* Write 4-byte data. */
8865 md_number_to_chars (p + isa_1_descsz + 4 * 6,
8866 (valueT) x86_feature_2_used, 4);
8868 /* Zero out paddings. */
8869 padding = feature_2_descsz - feature_2_descsz_raw;
8871 memset (p + isa_1_descsz + 4 * 7, 0, padding);
8873 /* We probably can't restore the current segment, for there likely
8876 subseg_set (seg, subseg);
8881 encoding_length (const fragS *start_frag, offsetT start_off,
8882 const char *frag_now_ptr)
8884 unsigned int len = 0;
8886 if (start_frag != frag_now)
8888 const fragS *fr = start_frag;
8893 } while (fr && fr != frag_now);
8896 return len - start_off + (frag_now_ptr - frag_now->fr_literal);
8899 /* Return 1 for test, and, cmp, add, sub, inc and dec which may
8900 be macro-fused with conditional jumps.
8901 NB: If TEST/AND/CMP/ADD/SUB/INC/DEC is of RIP relative address,
8902 or is one of the following format:
8915 maybe_fused_with_jcc_p (enum mf_cmp_kind* mf_cmp_p)
8917 /* No RIP address. */
8918 if (i.base_reg && i.base_reg->reg_num == RegIP)
8921 /* No VEX/EVEX encoding. */
8922 if (is_any_vex_encoding (&i.tm))
8925 /* add, sub without add/sub m, imm. */
8926 if (i.tm.base_opcode <= 5
8927 || (i.tm.base_opcode >= 0x28 && i.tm.base_opcode <= 0x2d)
8928 || ((i.tm.base_opcode | 3) == 0x83
8929 && (i.tm.extension_opcode == 0x5
8930 || i.tm.extension_opcode == 0x0)))
8932 *mf_cmp_p = mf_cmp_alu_cmp;
8933 return !(i.mem_operands && i.imm_operands);
8936 /* and without and m, imm. */
8937 if ((i.tm.base_opcode >= 0x20 && i.tm.base_opcode <= 0x25)
8938 || ((i.tm.base_opcode | 3) == 0x83
8939 && i.tm.extension_opcode == 0x4))
8941 *mf_cmp_p = mf_cmp_test_and;
8942 return !(i.mem_operands && i.imm_operands);
8945 /* test without test m imm. */
8946 if ((i.tm.base_opcode | 1) == 0x85
8947 || (i.tm.base_opcode | 1) == 0xa9
8948 || ((i.tm.base_opcode | 1) == 0xf7
8949 && i.tm.extension_opcode == 0))
8951 *mf_cmp_p = mf_cmp_test_and;
8952 return !(i.mem_operands && i.imm_operands);
8955 /* cmp without cmp m, imm. */
8956 if ((i.tm.base_opcode >= 0x38 && i.tm.base_opcode <= 0x3d)
8957 || ((i.tm.base_opcode | 3) == 0x83
8958 && (i.tm.extension_opcode == 0x7)))
8960 *mf_cmp_p = mf_cmp_alu_cmp;
8961 return !(i.mem_operands && i.imm_operands);
8964 /* inc, dec without inc/dec m. */
8965 if ((i.tm.cpu_flags.bitfield.cpuno64
8966 && (i.tm.base_opcode | 0xf) == 0x4f)
8967 || ((i.tm.base_opcode | 1) == 0xff
8968 && i.tm.extension_opcode <= 0x1))
8970 *mf_cmp_p = mf_cmp_incdec;
8971 return !i.mem_operands;
8977 /* Return 1 if a FUSED_JCC_PADDING frag should be generated. */
8980 add_fused_jcc_padding_frag_p (enum mf_cmp_kind* mf_cmp_p)
8982 /* NB: Don't work with COND_JUMP86 without i386. */
8983 if (!align_branch_power
8984 || now_seg == absolute_section
8985 || !cpu_arch_flags.bitfield.cpui386
8986 || !(align_branch & align_branch_fused_bit))
8989 if (maybe_fused_with_jcc_p (mf_cmp_p))
8991 if (last_insn.kind == last_insn_other
8992 || last_insn.seg != now_seg)
8995 as_warn_where (last_insn.file, last_insn.line,
8996 _("`%s` skips -malign-branch-boundary on `%s`"),
8997 last_insn.name, i.tm.name);
9003 /* Return 1 if a BRANCH_PREFIX frag should be generated. */
9006 add_branch_prefix_frag_p (void)
9008 /* NB: Don't work with COND_JUMP86 without i386. Don't add prefix
9009 to PadLock instructions since they include prefixes in opcode. */
9010 if (!align_branch_power
9011 || !align_branch_prefix_size
9012 || now_seg == absolute_section
9013 || i.tm.cpu_flags.bitfield.cpupadlock
9014 || !cpu_arch_flags.bitfield.cpui386)
9017 /* Don't add prefix if it is a prefix or there is no operand in case
9018 that segment prefix is special. */
9019 if (!i.operands || i.tm.opcode_modifier.isprefix)
9022 if (last_insn.kind == last_insn_other
9023 || last_insn.seg != now_seg)
9027 as_warn_where (last_insn.file, last_insn.line,
9028 _("`%s` skips -malign-branch-boundary on `%s`"),
9029 last_insn.name, i.tm.name);
9034 /* Return 1 if a BRANCH_PADDING frag should be generated. */
9037 add_branch_padding_frag_p (enum align_branch_kind *branch_p,
9038 enum mf_jcc_kind *mf_jcc_p)
9042 /* NB: Don't work with COND_JUMP86 without i386. */
9043 if (!align_branch_power
9044 || now_seg == absolute_section
9045 || !cpu_arch_flags.bitfield.cpui386)
9050 /* Check for jcc and direct jmp. */
9051 if (i.tm.opcode_modifier.jump == JUMP)
9053 if (i.tm.base_opcode == JUMP_PC_RELATIVE)
9055 *branch_p = align_branch_jmp;
9056 add_padding = align_branch & align_branch_jmp_bit;
9060 /* Because J<cc> and JN<cc> share same group in macro-fusible table,
9061 igore the lowest bit. */
9062 *mf_jcc_p = (i.tm.base_opcode & 0x0e) >> 1;
9063 *branch_p = align_branch_jcc;
9064 if ((align_branch & align_branch_jcc_bit))
9068 else if (is_any_vex_encoding (&i.tm))
9070 else if ((i.tm.base_opcode | 1) == 0xc3)
9073 *branch_p = align_branch_ret;
9074 if ((align_branch & align_branch_ret_bit))
9079 /* Check for indirect jmp, direct and indirect calls. */
9080 if (i.tm.base_opcode == 0xe8)
9083 *branch_p = align_branch_call;
9084 if ((align_branch & align_branch_call_bit))
9087 else if (i.tm.base_opcode == 0xff
9088 && (i.tm.extension_opcode == 2
9089 || i.tm.extension_opcode == 4))
9091 /* Indirect call and jmp. */
9092 *branch_p = align_branch_indirect;
9093 if ((align_branch & align_branch_indirect_bit))
9100 && (i.op[0].disps->X_op == O_symbol
9101 || (i.op[0].disps->X_op == O_subtract
9102 && i.op[0].disps->X_op_symbol == GOT_symbol)))
9104 symbolS *s = i.op[0].disps->X_add_symbol;
9105 /* No padding to call to global or undefined tls_get_addr. */
9106 if ((S_IS_EXTERNAL (s) || !S_IS_DEFINED (s))
9107 && strcmp (S_GET_NAME (s), tls_get_addr) == 0)
9113 && last_insn.kind != last_insn_other
9114 && last_insn.seg == now_seg)
9117 as_warn_where (last_insn.file, last_insn.line,
9118 _("`%s` skips -malign-branch-boundary on `%s`"),
9119 last_insn.name, i.tm.name);
9129 fragS *insn_start_frag;
9130 offsetT insn_start_off;
9131 fragS *fragP = NULL;
9132 enum align_branch_kind branch = align_branch_none;
9133 /* The initializer is arbitrary just to avoid uninitialized error.
9134 it's actually either assigned in add_branch_padding_frag_p
9135 or never be used. */
9136 enum mf_jcc_kind mf_jcc = mf_jcc_jo;
9138 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
9139 if (IS_ELF && x86_used_note && now_seg != absolute_section)
9141 if (i.tm.cpu_flags.bitfield.cpucmov)
9142 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_CMOV;
9143 if (i.tm.cpu_flags.bitfield.cpusse)
9144 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_SSE;
9145 if (i.tm.cpu_flags.bitfield.cpusse2)
9146 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_SSE2;
9147 if (i.tm.cpu_flags.bitfield.cpusse3)
9148 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_SSE3;
9149 if (i.tm.cpu_flags.bitfield.cpussse3)
9150 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_SSSE3;
9151 if (i.tm.cpu_flags.bitfield.cpusse4_1)
9152 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_SSE4_1;
9153 if (i.tm.cpu_flags.bitfield.cpusse4_2)
9154 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_SSE4_2;
9155 if (i.tm.cpu_flags.bitfield.cpuavx)
9156 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX;
9157 if (i.tm.cpu_flags.bitfield.cpuavx2)
9158 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX2;
9159 if (i.tm.cpu_flags.bitfield.cpufma)
9160 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_FMA;
9161 if (i.tm.cpu_flags.bitfield.cpuavx512f)
9162 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512F;
9163 if (i.tm.cpu_flags.bitfield.cpuavx512cd)
9164 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512CD;
9165 if (i.tm.cpu_flags.bitfield.cpuavx512er)
9166 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512ER;
9167 if (i.tm.cpu_flags.bitfield.cpuavx512pf)
9168 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512PF;
9169 if (i.tm.cpu_flags.bitfield.cpuavx512vl)
9170 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512VL;
9171 if (i.tm.cpu_flags.bitfield.cpuavx512dq)
9172 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512DQ;
9173 if (i.tm.cpu_flags.bitfield.cpuavx512bw)
9174 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512BW;
9175 if (i.tm.cpu_flags.bitfield.cpuavx512_4fmaps)
9176 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_4FMAPS;
9177 if (i.tm.cpu_flags.bitfield.cpuavx512_4vnniw)
9178 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_4VNNIW;
9179 if (i.tm.cpu_flags.bitfield.cpuavx512_bitalg)
9180 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_BITALG;
9181 if (i.tm.cpu_flags.bitfield.cpuavx512ifma)
9182 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_IFMA;
9183 if (i.tm.cpu_flags.bitfield.cpuavx512vbmi)
9184 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_VBMI;
9185 if (i.tm.cpu_flags.bitfield.cpuavx512_vbmi2)
9186 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_VBMI2;
9187 if (i.tm.cpu_flags.bitfield.cpuavx512_vnni)
9188 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_VNNI;
9189 if (i.tm.cpu_flags.bitfield.cpuavx512_bf16)
9190 x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_AVX512_BF16;
9192 if (i.tm.cpu_flags.bitfield.cpu8087
9193 || i.tm.cpu_flags.bitfield.cpu287
9194 || i.tm.cpu_flags.bitfield.cpu387
9195 || i.tm.cpu_flags.bitfield.cpu687
9196 || i.tm.cpu_flags.bitfield.cpufisttp)
9197 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_X87;
9198 if ((i.xstate & xstate_mmx)
9199 || i.tm.base_opcode == 0xf77 /* emms */
9200 || i.tm.base_opcode == 0xf0e /* femms */)
9201 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_MMX;
9202 if ((i.xstate & xstate_xmm))
9203 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XMM;
9204 if ((i.xstate & xstate_ymm) == xstate_ymm)
9205 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_YMM;
9206 if ((i.xstate & xstate_zmm) == xstate_zmm)
9207 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_ZMM;
9208 if (i.tm.cpu_flags.bitfield.cpufxsr)
9209 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_FXSR;
9210 if (i.tm.cpu_flags.bitfield.cpuxsave)
9211 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XSAVE;
9212 if (i.tm.cpu_flags.bitfield.cpuxsaveopt)
9213 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XSAVEOPT;
9214 if (i.tm.cpu_flags.bitfield.cpuxsavec)
9215 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XSAVEC;
9217 if ((i.xstate & xstate_tmm) == xstate_tmm
9218 || i.tm.cpu_flags.bitfield.cpuamx_tile)
9219 x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_TMM;
9223 /* Tie dwarf2 debug info to the address at the start of the insn.
9224 We can't do this after the insn has been output as the current
9225 frag may have been closed off. eg. by frag_var. */
9226 dwarf2_emit_insn (0);
9228 insn_start_frag = frag_now;
9229 insn_start_off = frag_now_fix ();
9231 if (add_branch_padding_frag_p (&branch, &mf_jcc))
9234 /* Branch can be 8 bytes. Leave some room for prefixes. */
9235 unsigned int max_branch_padding_size = 14;
9237 /* Align section to boundary. */
9238 record_alignment (now_seg, align_branch_power);
9240 /* Make room for padding. */
9241 frag_grow (max_branch_padding_size);
9243 /* Start of the padding. */
9248 frag_var (rs_machine_dependent, max_branch_padding_size, 0,
9249 ENCODE_RELAX_STATE (BRANCH_PADDING, 0),
9252 fragP->tc_frag_data.mf_type = mf_jcc;
9253 fragP->tc_frag_data.branch_type = branch;
9254 fragP->tc_frag_data.max_bytes = max_branch_padding_size;
9258 if (i.tm.opcode_modifier.jump == JUMP)
9260 else if (i.tm.opcode_modifier.jump == JUMP_BYTE
9261 || i.tm.opcode_modifier.jump == JUMP_DWORD)
9263 else if (i.tm.opcode_modifier.jump == JUMP_INTERSEGMENT)
9264 output_interseg_jump ();
9267 /* Output normal instructions here. */
9271 unsigned int prefix;
9272 enum mf_cmp_kind mf_cmp;
9275 && (i.tm.base_opcode == 0xfaee8
9276 || i.tm.base_opcode == 0xfaef0
9277 || i.tm.base_opcode == 0xfaef8))
9279 /* Encode lfence, mfence, and sfence as
9280 f0 83 04 24 00 lock addl $0x0, (%{re}sp). */
9281 if (now_seg != absolute_section)
9283 offsetT val = 0x240483f0ULL;
9286 md_number_to_chars (p, val, 5);
9289 abs_section_offset += 5;
9293 /* Some processors fail on LOCK prefix. This options makes
9294 assembler ignore LOCK prefix and serves as a workaround. */
9295 if (omit_lock_prefix)
9297 if (i.tm.base_opcode == LOCK_PREFIX_OPCODE)
9299 i.prefix[LOCK_PREFIX] = 0;
9303 /* Skip if this is a branch. */
9305 else if (add_fused_jcc_padding_frag_p (&mf_cmp))
9307 /* Make room for padding. */
9308 frag_grow (MAX_FUSED_JCC_PADDING_SIZE);
9313 frag_var (rs_machine_dependent, MAX_FUSED_JCC_PADDING_SIZE, 0,
9314 ENCODE_RELAX_STATE (FUSED_JCC_PADDING, 0),
9317 fragP->tc_frag_data.mf_type = mf_cmp;
9318 fragP->tc_frag_data.branch_type = align_branch_fused;
9319 fragP->tc_frag_data.max_bytes = MAX_FUSED_JCC_PADDING_SIZE;
9321 else if (add_branch_prefix_frag_p ())
9323 unsigned int max_prefix_size = align_branch_prefix_size;
9325 /* Make room for padding. */
9326 frag_grow (max_prefix_size);
9331 frag_var (rs_machine_dependent, max_prefix_size, 0,
9332 ENCODE_RELAX_STATE (BRANCH_PREFIX, 0),
9335 fragP->tc_frag_data.max_bytes = max_prefix_size;
9338 /* Since the VEX/EVEX prefix contains the implicit prefix, we
9339 don't need the explicit prefix. */
9340 if (!i.tm.opcode_modifier.vex && !i.tm.opcode_modifier.evex)
9342 switch (i.tm.opcode_length)
9345 if (i.tm.base_opcode & 0xff000000)
9347 prefix = (i.tm.base_opcode >> 24) & 0xff;
9348 if (!i.tm.cpu_flags.bitfield.cpupadlock
9349 || prefix != REPE_PREFIX_OPCODE
9350 || (i.prefix[REP_PREFIX] != REPE_PREFIX_OPCODE))
9351 add_prefix (prefix);
9355 if ((i.tm.base_opcode & 0xff0000) != 0)
9357 prefix = (i.tm.base_opcode >> 16) & 0xff;
9358 add_prefix (prefix);
9364 /* Check for pseudo prefixes. */
9365 as_bad_where (insn_start_frag->fr_file,
9366 insn_start_frag->fr_line,
9367 _("pseudo prefix without instruction"));
9373 #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF)
9374 /* For x32, add a dummy REX_OPCODE prefix for mov/add with
9375 R_X86_64_GOTTPOFF relocation so that linker can safely
9376 perform IE->LE optimization. A dummy REX_OPCODE prefix
9377 is also needed for lea with R_X86_64_GOTPC32_TLSDESC
9378 relocation for GDesc -> IE/LE optimization. */
9379 if (x86_elf_abi == X86_64_X32_ABI
9381 && (i.reloc[0] == BFD_RELOC_X86_64_GOTTPOFF
9382 || i.reloc[0] == BFD_RELOC_X86_64_GOTPC32_TLSDESC)
9383 && i.prefix[REX_PREFIX] == 0)
9384 add_prefix (REX_OPCODE);
9387 /* The prefix bytes. */
9388 for (j = ARRAY_SIZE (i.prefix), q = i.prefix; j > 0; j--, q++)
9390 frag_opcode_byte (*q);
9394 for (j = 0, q = i.prefix; j < ARRAY_SIZE (i.prefix); j++, q++)
9400 frag_opcode_byte (*q);
9403 /* There should be no other prefixes for instructions
9408 /* For EVEX instructions i.vrex should become 0 after
9409 build_evex_prefix. For VEX instructions upper 16 registers
9410 aren't available, so VREX should be 0. */
9413 /* Now the VEX prefix. */
9414 if (now_seg != absolute_section)
9416 p = frag_more (i.vex.length);
9417 for (j = 0; j < i.vex.length; j++)
9418 p[j] = i.vex.bytes[j];
9421 abs_section_offset += i.vex.length;
9424 /* Now the opcode; be careful about word order here! */
9425 if (now_seg == absolute_section)
9426 abs_section_offset += i.tm.opcode_length;
9427 else if (i.tm.opcode_length == 1)
9429 FRAG_APPEND_1_CHAR (i.tm.base_opcode);
9433 switch (i.tm.opcode_length)
9437 *p++ = (i.tm.base_opcode >> 24) & 0xff;
9438 *p++ = (i.tm.base_opcode >> 16) & 0xff;
9442 *p++ = (i.tm.base_opcode >> 16) & 0xff;
9452 /* Put out high byte first: can't use md_number_to_chars! */
9453 *p++ = (i.tm.base_opcode >> 8) & 0xff;
9454 *p = i.tm.base_opcode & 0xff;
9457 /* Now the modrm byte and sib byte (if present). */
9458 if (i.tm.opcode_modifier.modrm)
9460 frag_opcode_byte ((i.rm.regmem << 0)
9462 | (i.rm.mode << 6));
9463 /* If i.rm.regmem == ESP (4)
9464 && i.rm.mode != (Register mode)
9466 ==> need second modrm byte. */
9467 if (i.rm.regmem == ESCAPE_TO_TWO_BYTE_ADDRESSING
9469 && !(i.base_reg && i.base_reg->reg_type.bitfield.word))
9470 frag_opcode_byte ((i.sib.base << 0)
9471 | (i.sib.index << 3)
9472 | (i.sib.scale << 6));
9475 if (i.disp_operands)
9476 output_disp (insn_start_frag, insn_start_off);
9479 output_imm (insn_start_frag, insn_start_off);
9482 * frag_now_fix () returning plain abs_section_offset when we're in the
9483 * absolute section, and abs_section_offset not getting updated as data
9484 * gets added to the frag breaks the logic below.
9486 if (now_seg != absolute_section)
9488 j = encoding_length (insn_start_frag, insn_start_off, frag_more (0));
9490 as_warn (_("instruction length of %u bytes exceeds the limit of 15"),
9494 /* NB: Don't add prefix with GOTPC relocation since
9495 output_disp() above depends on the fixed encoding
9496 length. Can't add prefix with TLS relocation since
9497 it breaks TLS linker optimization. */
9498 unsigned int max = i.has_gotpc_tls_reloc ? 0 : 15 - j;
9499 /* Prefix count on the current instruction. */
9500 unsigned int count = i.vex.length;
9502 for (k = 0; k < ARRAY_SIZE (i.prefix); k++)
9503 /* REX byte is encoded in VEX/EVEX prefix. */
9504 if (i.prefix[k] && (k != REX_PREFIX || !i.vex.length))
9507 /* Count prefixes for extended opcode maps. */
9509 switch (i.tm.opcode_length)
9512 if (((i.tm.base_opcode >> 16) & 0xff) == 0xf)
9515 switch ((i.tm.base_opcode >> 8) & 0xff)
9527 if (((i.tm.base_opcode >> 8) & 0xff) == 0xf)
9536 if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype)
9539 /* Set the maximum prefix size in BRANCH_PREFIX
9541 if (fragP->tc_frag_data.max_bytes > max)
9542 fragP->tc_frag_data.max_bytes = max;
9543 if (fragP->tc_frag_data.max_bytes > count)
9544 fragP->tc_frag_data.max_bytes -= count;
9546 fragP->tc_frag_data.max_bytes = 0;
9550 /* Remember the maximum prefix size in FUSED_JCC_PADDING
9552 unsigned int max_prefix_size;
9553 if (align_branch_prefix_size > max)
9554 max_prefix_size = max;
9556 max_prefix_size = align_branch_prefix_size;
9557 if (max_prefix_size > count)
9558 fragP->tc_frag_data.max_prefix_length
9559 = max_prefix_size - count;
9562 /* Use existing segment prefix if possible. Use CS
9563 segment prefix in 64-bit mode. In 32-bit mode, use SS
9564 segment prefix with ESP/EBP base register and use DS
9565 segment prefix without ESP/EBP base register. */
9566 if (i.prefix[SEG_PREFIX])
9567 fragP->tc_frag_data.default_prefix = i.prefix[SEG_PREFIX];
9568 else if (flag_code == CODE_64BIT)
9569 fragP->tc_frag_data.default_prefix = CS_PREFIX_OPCODE;
9571 && (i.base_reg->reg_num == 4
9572 || i.base_reg->reg_num == 5))
9573 fragP->tc_frag_data.default_prefix = SS_PREFIX_OPCODE;
9575 fragP->tc_frag_data.default_prefix = DS_PREFIX_OPCODE;
9580 /* NB: Don't work with COND_JUMP86 without i386. */
9581 if (align_branch_power
9582 && now_seg != absolute_section
9583 && cpu_arch_flags.bitfield.cpui386)
9585 /* Terminate each frag so that we can add prefix and check for
9587 frag_wane (frag_now);
9594 pi ("" /*line*/, &i);
9596 #endif /* DEBUG386 */
9599 /* Return the size of the displacement operand N. */
9602 disp_size (unsigned int n)
9606 if (i.types[n].bitfield.disp64)
9608 else if (i.types[n].bitfield.disp8)
9610 else if (i.types[n].bitfield.disp16)
9615 /* Return the size of the immediate operand N. */
9618 imm_size (unsigned int n)
9621 if (i.types[n].bitfield.imm64)
9623 else if (i.types[n].bitfield.imm8 || i.types[n].bitfield.imm8s)
9625 else if (i.types[n].bitfield.imm16)
9631 output_disp (fragS *insn_start_frag, offsetT insn_start_off)
9636 for (n = 0; n < i.operands; n++)
9638 if (operand_type_check (i.types[n], disp))
9640 int size = disp_size (n);
9642 if (now_seg == absolute_section)
9643 abs_section_offset += size;
9644 else if (i.op[n].disps->X_op == O_constant)
9646 offsetT val = i.op[n].disps->X_add_number;
9648 val = offset_in_range (val >> (size == 1 ? i.memshift : 0),
9650 p = frag_more (size);
9651 md_number_to_chars (p, val, size);
9655 enum bfd_reloc_code_real reloc_type;
9656 int sign = i.types[n].bitfield.disp32s;
9657 int pcrel = (i.flags[n] & Operand_PCrel) != 0;
9660 /* We can't have 8 bit displacement here. */
9661 gas_assert (!i.types[n].bitfield.disp8);
9663 /* The PC relative address is computed relative
9664 to the instruction boundary, so in case immediate
9665 fields follows, we need to adjust the value. */
9666 if (pcrel && i.imm_operands)
9671 for (n1 = 0; n1 < i.operands; n1++)
9672 if (operand_type_check (i.types[n1], imm))
9674 /* Only one immediate is allowed for PC
9675 relative address. */
9676 gas_assert (sz == 0);
9678 i.op[n].disps->X_add_number -= sz;
9680 /* We should find the immediate. */
9681 gas_assert (sz != 0);
9684 p = frag_more (size);
9685 reloc_type = reloc (size, pcrel, sign, i.reloc[n]);
9687 && GOT_symbol == i.op[n].disps->X_add_symbol
9688 && (((reloc_type == BFD_RELOC_32
9689 || reloc_type == BFD_RELOC_X86_64_32S
9690 || (reloc_type == BFD_RELOC_64
9692 && (i.op[n].disps->X_op == O_symbol
9693 || (i.op[n].disps->X_op == O_add
9694 && ((symbol_get_value_expression
9695 (i.op[n].disps->X_op_symbol)->X_op)
9697 || reloc_type == BFD_RELOC_32_PCREL))
9701 reloc_type = BFD_RELOC_386_GOTPC;
9702 i.has_gotpc_tls_reloc = TRUE;
9703 i.op[n].imms->X_add_number +=
9704 encoding_length (insn_start_frag, insn_start_off, p);
9706 else if (reloc_type == BFD_RELOC_64)
9707 reloc_type = BFD_RELOC_X86_64_GOTPC64;
9709 /* Don't do the adjustment for x86-64, as there
9710 the pcrel addressing is relative to the _next_
9711 insn, and that is taken care of in other code. */
9712 reloc_type = BFD_RELOC_X86_64_GOTPC32;
9714 else if (align_branch_power)
9718 case BFD_RELOC_386_TLS_GD:
9719 case BFD_RELOC_386_TLS_LDM:
9720 case BFD_RELOC_386_TLS_IE:
9721 case BFD_RELOC_386_TLS_IE_32:
9722 case BFD_RELOC_386_TLS_GOTIE:
9723 case BFD_RELOC_386_TLS_GOTDESC:
9724 case BFD_RELOC_386_TLS_DESC_CALL:
9725 case BFD_RELOC_X86_64_TLSGD:
9726 case BFD_RELOC_X86_64_TLSLD:
9727 case BFD_RELOC_X86_64_GOTTPOFF:
9728 case BFD_RELOC_X86_64_GOTPC32_TLSDESC:
9729 case BFD_RELOC_X86_64_TLSDESC_CALL:
9730 i.has_gotpc_tls_reloc = TRUE;
9735 fixP = fix_new_exp (frag_now, p - frag_now->fr_literal,
9736 size, i.op[n].disps, pcrel,
9738 /* Check for "call/jmp *mem", "mov mem, %reg",
9739 "test %reg, mem" and "binop mem, %reg" where binop
9740 is one of adc, add, and, cmp, or, sbb, sub, xor
9741 instructions without data prefix. Always generate
9742 R_386_GOT32X for "sym*GOT" operand in 32-bit mode. */
9743 if (i.prefix[DATA_PREFIX] == 0
9744 && (generate_relax_relocations
9747 && i.rm.regmem == 5))
9749 || (i.rm.mode == 0 && i.rm.regmem == 5))
9750 && !is_any_vex_encoding(&i.tm)
9751 && ((i.operands == 1
9752 && i.tm.base_opcode == 0xff
9753 && (i.rm.reg == 2 || i.rm.reg == 4))
9755 && (i.tm.base_opcode == 0x8b
9756 || i.tm.base_opcode == 0x85
9757 || (i.tm.base_opcode & ~0x38) == 0x03))))
9761 fixP->fx_tcbit = i.rex != 0;
9763 && (i.base_reg->reg_num == RegIP))
9764 fixP->fx_tcbit2 = 1;
9767 fixP->fx_tcbit2 = 1;
9775 output_imm (fragS *insn_start_frag, offsetT insn_start_off)
9780 for (n = 0; n < i.operands; n++)
9782 /* Skip SAE/RC Imm operand in EVEX. They are already handled. */
9783 if (i.rounding && (int) n == i.rounding->operand)
9786 if (operand_type_check (i.types[n], imm))
9788 int size = imm_size (n);
9790 if (now_seg == absolute_section)
9791 abs_section_offset += size;
9792 else if (i.op[n].imms->X_op == O_constant)
9796 val = offset_in_range (i.op[n].imms->X_add_number,
9798 p = frag_more (size);
9799 md_number_to_chars (p, val, size);
9803 /* Not absolute_section.
9804 Need a 32-bit fixup (don't support 8bit
9805 non-absolute imms). Try to support other
9807 enum bfd_reloc_code_real reloc_type;
9810 if (i.types[n].bitfield.imm32s
9811 && (i.suffix == QWORD_MNEM_SUFFIX
9812 || (!i.suffix && i.tm.opcode_modifier.no_lsuf)))
9817 p = frag_more (size);
9818 reloc_type = reloc (size, 0, sign, i.reloc[n]);
9820 /* This is tough to explain. We end up with this one if we
9821 * have operands that look like
9822 * "_GLOBAL_OFFSET_TABLE_+[.-.L284]". The goal here is to
9823 * obtain the absolute address of the GOT, and it is strongly
9824 * preferable from a performance point of view to avoid using
9825 * a runtime relocation for this. The actual sequence of
9826 * instructions often look something like:
9831 * addl $_GLOBAL_OFFSET_TABLE_+[.-.L66],%ebx
9833 * The call and pop essentially return the absolute address
9834 * of the label .L66 and store it in %ebx. The linker itself
9835 * will ultimately change the first operand of the addl so
9836 * that %ebx points to the GOT, but to keep things simple, the
9837 * .o file must have this operand set so that it generates not
9838 * the absolute address of .L66, but the absolute address of
9839 * itself. This allows the linker itself simply treat a GOTPC
9840 * relocation as asking for a pcrel offset to the GOT to be
9841 * added in, and the addend of the relocation is stored in the
9842 * operand field for the instruction itself.
9844 * Our job here is to fix the operand so that it would add
9845 * the correct offset so that %ebx would point to itself. The
9846 * thing that is tricky is that .-.L66 will point to the
9847 * beginning of the instruction, so we need to further modify
9848 * the operand so that it will point to itself. There are
9849 * other cases where you have something like:
9851 * .long $_GLOBAL_OFFSET_TABLE_+[.-.L66]
9853 * and here no correction would be required. Internally in
9854 * the assembler we treat operands of this form as not being
9855 * pcrel since the '.' is explicitly mentioned, and I wonder
9856 * whether it would simplify matters to do it this way. Who
9857 * knows. In earlier versions of the PIC patches, the
9858 * pcrel_adjust field was used to store the correction, but
9859 * since the expression is not pcrel, I felt it would be
9860 * confusing to do it this way. */
9862 if ((reloc_type == BFD_RELOC_32
9863 || reloc_type == BFD_RELOC_X86_64_32S
9864 || reloc_type == BFD_RELOC_64)
9866 && GOT_symbol == i.op[n].imms->X_add_symbol
9867 && (i.op[n].imms->X_op == O_symbol
9868 || (i.op[n].imms->X_op == O_add
9869 && ((symbol_get_value_expression
9870 (i.op[n].imms->X_op_symbol)->X_op)
9874 reloc_type = BFD_RELOC_386_GOTPC;
9876 reloc_type = BFD_RELOC_X86_64_GOTPC32;
9878 reloc_type = BFD_RELOC_X86_64_GOTPC64;
9879 i.has_gotpc_tls_reloc = TRUE;
9880 i.op[n].imms->X_add_number +=
9881 encoding_length (insn_start_frag, insn_start_off, p);
9883 fix_new_exp (frag_now, p - frag_now->fr_literal, size,
9884 i.op[n].imms, 0, reloc_type);
9890 /* x86_cons_fix_new is called via the expression parsing code when a
9891 reloc is needed. We use this hook to get the correct .got reloc. */
9892 static int cons_sign = -1;
9895 x86_cons_fix_new (fragS *frag, unsigned int off, unsigned int len,
9896 expressionS *exp, bfd_reloc_code_real_type r)
9898 r = reloc (len, 0, cons_sign, r);
9901 if (exp->X_op == O_secrel)
9903 exp->X_op = O_symbol;
9904 r = BFD_RELOC_32_SECREL;
9908 fix_new_exp (frag, off, len, exp, 0, r);
9911 /* Export the ABI address size for use by TC_ADDRESS_BYTES for the
9912 purpose of the `.dc.a' internal pseudo-op. */
9915 x86_address_bytes (void)
9917 if ((stdoutput->arch_info->mach & bfd_mach_x64_32))
9919 return stdoutput->arch_info->bits_per_address / 8;
9922 #if !(defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined (OBJ_MACH_O)) \
9924 # define lex_got(reloc, adjust, types) NULL
9926 /* Parse operands of the form
9927 <symbol>@GOTOFF+<nnn>
9928 and similar .plt or .got references.
9930 If we find one, set up the correct relocation in RELOC and copy the
9931 input string, minus the `@GOTOFF' into a malloc'd buffer for
9932 parsing by the calling routine. Return this buffer, and if ADJUST
9933 is non-null set it to the length of the string we removed from the
9934 input line. Otherwise return NULL. */
9936 lex_got (enum bfd_reloc_code_real *rel,
9938 i386_operand_type *types)
9940 /* Some of the relocations depend on the size of what field is to
9941 be relocated. But in our callers i386_immediate and i386_displacement
9942 we don't yet know the operand size (this will be set by insn
9943 matching). Hence we record the word32 relocation here,
9944 and adjust the reloc according to the real size in reloc(). */
9945 static const struct {
9948 const enum bfd_reloc_code_real rel[2];
9949 const i386_operand_type types64;
9951 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
9952 { STRING_COMMA_LEN ("SIZE"), { BFD_RELOC_SIZE32,
9954 OPERAND_TYPE_IMM32_64 },
9956 { STRING_COMMA_LEN ("PLTOFF"), { _dummy_first_bfd_reloc_code_real,
9957 BFD_RELOC_X86_64_PLTOFF64 },
9958 OPERAND_TYPE_IMM64 },
9959 { STRING_COMMA_LEN ("PLT"), { BFD_RELOC_386_PLT32,
9960 BFD_RELOC_X86_64_PLT32 },
9961 OPERAND_TYPE_IMM32_32S_DISP32 },
9962 { STRING_COMMA_LEN ("GOTPLT"), { _dummy_first_bfd_reloc_code_real,
9963 BFD_RELOC_X86_64_GOTPLT64 },
9964 OPERAND_TYPE_IMM64_DISP64 },
9965 { STRING_COMMA_LEN ("GOTOFF"), { BFD_RELOC_386_GOTOFF,
9966 BFD_RELOC_X86_64_GOTOFF64 },
9967 OPERAND_TYPE_IMM64_DISP64 },
9968 { STRING_COMMA_LEN ("GOTPCREL"), { _dummy_first_bfd_reloc_code_real,
9969 BFD_RELOC_X86_64_GOTPCREL },
9970 OPERAND_TYPE_IMM32_32S_DISP32 },
9971 { STRING_COMMA_LEN ("TLSGD"), { BFD_RELOC_386_TLS_GD,
9972 BFD_RELOC_X86_64_TLSGD },
9973 OPERAND_TYPE_IMM32_32S_DISP32 },
9974 { STRING_COMMA_LEN ("TLSLDM"), { BFD_RELOC_386_TLS_LDM,
9975 _dummy_first_bfd_reloc_code_real },
9976 OPERAND_TYPE_NONE },
9977 { STRING_COMMA_LEN ("TLSLD"), { _dummy_first_bfd_reloc_code_real,
9978 BFD_RELOC_X86_64_TLSLD },
9979 OPERAND_TYPE_IMM32_32S_DISP32 },
9980 { STRING_COMMA_LEN ("GOTTPOFF"), { BFD_RELOC_386_TLS_IE_32,
9981 BFD_RELOC_X86_64_GOTTPOFF },
9982 OPERAND_TYPE_IMM32_32S_DISP32 },
9983 { STRING_COMMA_LEN ("TPOFF"), { BFD_RELOC_386_TLS_LE_32,
9984 BFD_RELOC_X86_64_TPOFF32 },
9985 OPERAND_TYPE_IMM32_32S_64_DISP32_64 },
9986 { STRING_COMMA_LEN ("NTPOFF"), { BFD_RELOC_386_TLS_LE,
9987 _dummy_first_bfd_reloc_code_real },
9988 OPERAND_TYPE_NONE },
9989 { STRING_COMMA_LEN ("DTPOFF"), { BFD_RELOC_386_TLS_LDO_32,
9990 BFD_RELOC_X86_64_DTPOFF32 },
9991 OPERAND_TYPE_IMM32_32S_64_DISP32_64 },
9992 { STRING_COMMA_LEN ("GOTNTPOFF"),{ BFD_RELOC_386_TLS_GOTIE,
9993 _dummy_first_bfd_reloc_code_real },
9994 OPERAND_TYPE_NONE },
9995 { STRING_COMMA_LEN ("INDNTPOFF"),{ BFD_RELOC_386_TLS_IE,
9996 _dummy_first_bfd_reloc_code_real },
9997 OPERAND_TYPE_NONE },
9998 { STRING_COMMA_LEN ("GOT"), { BFD_RELOC_386_GOT32,
9999 BFD_RELOC_X86_64_GOT32 },
10000 OPERAND_TYPE_IMM32_32S_64_DISP32 },
10001 { STRING_COMMA_LEN ("TLSDESC"), { BFD_RELOC_386_TLS_GOTDESC,
10002 BFD_RELOC_X86_64_GOTPC32_TLSDESC },
10003 OPERAND_TYPE_IMM32_32S_DISP32 },
10004 { STRING_COMMA_LEN ("TLSCALL"), { BFD_RELOC_386_TLS_DESC_CALL,
10005 BFD_RELOC_X86_64_TLSDESC_CALL },
10006 OPERAND_TYPE_IMM32_32S_DISP32 },
10011 #if defined (OBJ_MAYBE_ELF)
10016 for (cp = input_line_pointer; *cp != '@'; cp++)
10017 if (is_end_of_line[(unsigned char) *cp] || *cp == ',')
10020 for (j = 0; j < ARRAY_SIZE (gotrel); j++)
10022 int len = gotrel[j].len;
10023 if (strncasecmp (cp + 1, gotrel[j].str, len) == 0)
10025 if (gotrel[j].rel[object_64bit] != 0)
10028 char *tmpbuf, *past_reloc;
10030 *rel = gotrel[j].rel[object_64bit];
10034 if (flag_code != CODE_64BIT)
10036 types->bitfield.imm32 = 1;
10037 types->bitfield.disp32 = 1;
10040 *types = gotrel[j].types64;
10043 if (j != 0 && GOT_symbol == NULL)
10044 GOT_symbol = symbol_find_or_make (GLOBAL_OFFSET_TABLE_NAME);
10046 /* The length of the first part of our input line. */
10047 first = cp - input_line_pointer;
10049 /* The second part goes from after the reloc token until
10050 (and including) an end_of_line char or comma. */
10051 past_reloc = cp + 1 + len;
10053 while (!is_end_of_line[(unsigned char) *cp] && *cp != ',')
10055 second = cp + 1 - past_reloc;
10057 /* Allocate and copy string. The trailing NUL shouldn't
10058 be necessary, but be safe. */
10059 tmpbuf = XNEWVEC (char, first + second + 2);
10060 memcpy (tmpbuf, input_line_pointer, first);
10061 if (second != 0 && *past_reloc != ' ')
10062 /* Replace the relocation token with ' ', so that
10063 errors like foo@GOTOFF1 will be detected. */
10064 tmpbuf[first++] = ' ';
10066 /* Increment length by 1 if the relocation token is
10071 memcpy (tmpbuf + first, past_reloc, second);
10072 tmpbuf[first + second] = '\0';
10076 as_bad (_("@%s reloc is not supported with %d-bit output format"),
10077 gotrel[j].str, 1 << (5 + object_64bit));
10082 /* Might be a symbol version string. Don't as_bad here. */
10091 /* Parse operands of the form
10092 <symbol>@SECREL32+<nnn>
10094 If we find one, set up the correct relocation in RELOC and copy the
10095 input string, minus the `@SECREL32' into a malloc'd buffer for
10096 parsing by the calling routine. Return this buffer, and if ADJUST
10097 is non-null set it to the length of the string we removed from the
10098 input line. Otherwise return NULL.
10100 This function is copied from the ELF version above adjusted for PE targets. */
10103 lex_got (enum bfd_reloc_code_real *rel ATTRIBUTE_UNUSED,
10104 int *adjust ATTRIBUTE_UNUSED,
10105 i386_operand_type *types)
10107 static const struct
10111 const enum bfd_reloc_code_real rel[2];
10112 const i386_operand_type types64;
10116 { STRING_COMMA_LEN ("SECREL32"), { BFD_RELOC_32_SECREL,
10117 BFD_RELOC_32_SECREL },
10118 OPERAND_TYPE_IMM32_32S_64_DISP32_64 },
10124 for (cp = input_line_pointer; *cp != '@'; cp++)
10125 if (is_end_of_line[(unsigned char) *cp] || *cp == ',')
10128 for (j = 0; j < ARRAY_SIZE (gotrel); j++)
10130 int len = gotrel[j].len;
10132 if (strncasecmp (cp + 1, gotrel[j].str, len) == 0)
10134 if (gotrel[j].rel[object_64bit] != 0)
10137 char *tmpbuf, *past_reloc;
10139 *rel = gotrel[j].rel[object_64bit];
10145 if (flag_code != CODE_64BIT)
10147 types->bitfield.imm32 = 1;
10148 types->bitfield.disp32 = 1;
10151 *types = gotrel[j].types64;
10154 /* The length of the first part of our input line. */
10155 first = cp - input_line_pointer;
10157 /* The second part goes from after the reloc token until
10158 (and including) an end_of_line char or comma. */
10159 past_reloc = cp + 1 + len;
10161 while (!is_end_of_line[(unsigned char) *cp] && *cp != ',')
10163 second = cp + 1 - past_reloc;
10165 /* Allocate and copy string. The trailing NUL shouldn't
10166 be necessary, but be safe. */
10167 tmpbuf = XNEWVEC (char, first + second + 2);
10168 memcpy (tmpbuf, input_line_pointer, first);
10169 if (second != 0 && *past_reloc != ' ')
10170 /* Replace the relocation token with ' ', so that
10171 errors like foo@SECLREL321 will be detected. */
10172 tmpbuf[first++] = ' ';
10173 memcpy (tmpbuf + first, past_reloc, second);
10174 tmpbuf[first + second] = '\0';
10178 as_bad (_("@%s reloc is not supported with %d-bit output format"),
10179 gotrel[j].str, 1 << (5 + object_64bit));
10184 /* Might be a symbol version string. Don't as_bad here. */
10190 bfd_reloc_code_real_type
10191 x86_cons (expressionS *exp, int size)
10193 bfd_reloc_code_real_type got_reloc = NO_RELOC;
10195 intel_syntax = -intel_syntax;
10198 if (size == 4 || (object_64bit && size == 8))
10200 /* Handle @GOTOFF and the like in an expression. */
10202 char *gotfree_input_line;
10205 save = input_line_pointer;
10206 gotfree_input_line = lex_got (&got_reloc, &adjust, NULL);
10207 if (gotfree_input_line)
10208 input_line_pointer = gotfree_input_line;
10212 if (gotfree_input_line)
10214 /* expression () has merrily parsed up to the end of line,
10215 or a comma - in the wrong buffer. Transfer how far
10216 input_line_pointer has moved to the right buffer. */
10217 input_line_pointer = (save
10218 + (input_line_pointer - gotfree_input_line)
10220 free (gotfree_input_line);
10221 if (exp->X_op == O_constant
10222 || exp->X_op == O_absent
10223 || exp->X_op == O_illegal
10224 || exp->X_op == O_register
10225 || exp->X_op == O_big)
10227 char c = *input_line_pointer;
10228 *input_line_pointer = 0;
10229 as_bad (_("missing or invalid expression `%s'"), save);
10230 *input_line_pointer = c;
10232 else if ((got_reloc == BFD_RELOC_386_PLT32
10233 || got_reloc == BFD_RELOC_X86_64_PLT32)
10234 && exp->X_op != O_symbol)
10236 char c = *input_line_pointer;
10237 *input_line_pointer = 0;
10238 as_bad (_("invalid PLT expression `%s'"), save);
10239 *input_line_pointer = c;
10246 intel_syntax = -intel_syntax;
10249 i386_intel_simplify (exp);
10255 signed_cons (int size)
10257 if (flag_code == CODE_64BIT)
10265 pe_directive_secrel (int dummy ATTRIBUTE_UNUSED)
10272 if (exp.X_op == O_symbol)
10273 exp.X_op = O_secrel;
10275 emit_expr (&exp, 4);
10277 while (*input_line_pointer++ == ',');
10279 input_line_pointer--;
10280 demand_empty_rest_of_line ();
10284 /* Handle Vector operations. */
10287 check_VecOperations (char *op_string, char *op_end)
10289 const reg_entry *mask;
10294 && (op_end == NULL || op_string < op_end))
10297 if (*op_string == '{')
10301 /* Check broadcasts. */
10302 if (strncmp (op_string, "1to", 3) == 0)
10307 goto duplicated_vec_op;
10310 if (*op_string == '8')
10312 else if (*op_string == '4')
10314 else if (*op_string == '2')
10316 else if (*op_string == '1'
10317 && *(op_string+1) == '6')
10324 as_bad (_("Unsupported broadcast: `%s'"), saved);
10329 broadcast_op.type = bcst_type;
10330 broadcast_op.operand = this_operand;
10331 broadcast_op.bytes = 0;
10332 i.broadcast = &broadcast_op;
10334 /* Check masking operation. */
10335 else if ((mask = parse_register (op_string, &end_op)) != NULL)
10337 if (mask == &bad_reg)
10340 /* k0 can't be used for write mask. */
10341 if (mask->reg_type.bitfield.class != RegMask || !mask->reg_num)
10343 as_bad (_("`%s%s' can't be used for write mask"),
10344 register_prefix, mask->reg_name);
10350 mask_op.mask = mask;
10351 mask_op.zeroing = 0;
10352 mask_op.operand = this_operand;
10358 goto duplicated_vec_op;
10360 i.mask->mask = mask;
10362 /* Only "{z}" is allowed here. No need to check
10363 zeroing mask explicitly. */
10364 if (i.mask->operand != this_operand)
10366 as_bad (_("invalid write mask `%s'"), saved);
10371 op_string = end_op;
10373 /* Check zeroing-flag for masking operation. */
10374 else if (*op_string == 'z')
10378 mask_op.mask = NULL;
10379 mask_op.zeroing = 1;
10380 mask_op.operand = this_operand;
10385 if (i.mask->zeroing)
10388 as_bad (_("duplicated `%s'"), saved);
10392 i.mask->zeroing = 1;
10394 /* Only "{%k}" is allowed here. No need to check mask
10395 register explicitly. */
10396 if (i.mask->operand != this_operand)
10398 as_bad (_("invalid zeroing-masking `%s'"),
10407 goto unknown_vec_op;
10409 if (*op_string != '}')
10411 as_bad (_("missing `}' in `%s'"), saved);
10416 /* Strip whitespace since the addition of pseudo prefixes
10417 changed how the scrubber treats '{'. */
10418 if (is_space_char (*op_string))
10424 /* We don't know this one. */
10425 as_bad (_("unknown vector operation: `%s'"), saved);
10429 if (i.mask && i.mask->zeroing && !i.mask->mask)
10431 as_bad (_("zeroing-masking only allowed with write mask"));
10439 i386_immediate (char *imm_start)
10441 char *save_input_line_pointer;
10442 char *gotfree_input_line;
10445 i386_operand_type types;
10447 operand_type_set (&types, ~0);
10449 if (i.imm_operands == MAX_IMMEDIATE_OPERANDS)
10451 as_bad (_("at most %d immediate operands are allowed"),
10452 MAX_IMMEDIATE_OPERANDS);
10456 exp = &im_expressions[i.imm_operands++];
10457 i.op[this_operand].imms = exp;
10459 if (is_space_char (*imm_start))
10462 save_input_line_pointer = input_line_pointer;
10463 input_line_pointer = imm_start;
10465 gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types);
10466 if (gotfree_input_line)
10467 input_line_pointer = gotfree_input_line;
10469 exp_seg = expression (exp);
10471 SKIP_WHITESPACE ();
10473 /* Handle vector operations. */
10474 if (*input_line_pointer == '{')
10476 input_line_pointer = check_VecOperations (input_line_pointer,
10478 if (input_line_pointer == NULL)
10482 if (*input_line_pointer)
10483 as_bad (_("junk `%s' after expression"), input_line_pointer);
10485 input_line_pointer = save_input_line_pointer;
10486 if (gotfree_input_line)
10488 free (gotfree_input_line);
10490 if (exp->X_op == O_constant || exp->X_op == O_register)
10491 exp->X_op = O_illegal;
10494 return i386_finalize_immediate (exp_seg, exp, types, imm_start);
10498 i386_finalize_immediate (segT exp_seg ATTRIBUTE_UNUSED, expressionS *exp,
10499 i386_operand_type types, const char *imm_start)
10501 if (exp->X_op == O_absent || exp->X_op == O_illegal || exp->X_op == O_big)
10504 as_bad (_("missing or invalid immediate expression `%s'"),
10508 else if (exp->X_op == O_constant)
10510 /* Size it properly later. */
10511 i.types[this_operand].bitfield.imm64 = 1;
10512 /* If not 64bit, sign extend val. */
10513 if (flag_code != CODE_64BIT
10514 && (exp->X_add_number & ~(((addressT) 2 << 31) - 1)) == 0)
10516 = (exp->X_add_number ^ ((addressT) 1 << 31)) - ((addressT) 1 << 31);
10518 #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT))
10519 else if (OUTPUT_FLAVOR == bfd_target_aout_flavour
10520 && exp_seg != absolute_section
10521 && exp_seg != text_section
10522 && exp_seg != data_section
10523 && exp_seg != bss_section
10524 && exp_seg != undefined_section
10525 && !bfd_is_com_section (exp_seg))
10527 as_bad (_("unimplemented segment %s in operand"), exp_seg->name);
10531 else if (!intel_syntax && exp_seg == reg_section)
10534 as_bad (_("illegal immediate register operand %s"), imm_start);
10539 /* This is an address. The size of the address will be
10540 determined later, depending on destination register,
10541 suffix, or the default for the section. */
10542 i.types[this_operand].bitfield.imm8 = 1;
10543 i.types[this_operand].bitfield.imm16 = 1;
10544 i.types[this_operand].bitfield.imm32 = 1;
10545 i.types[this_operand].bitfield.imm32s = 1;
10546 i.types[this_operand].bitfield.imm64 = 1;
10547 i.types[this_operand] = operand_type_and (i.types[this_operand],
10555 i386_scale (char *scale)
10558 char *save = input_line_pointer;
10560 input_line_pointer = scale;
10561 val = get_absolute_expression ();
10566 i.log2_scale_factor = 0;
10569 i.log2_scale_factor = 1;
10572 i.log2_scale_factor = 2;
10575 i.log2_scale_factor = 3;
10579 char sep = *input_line_pointer;
10581 *input_line_pointer = '\0';
10582 as_bad (_("expecting scale factor of 1, 2, 4, or 8: got `%s'"),
10584 *input_line_pointer = sep;
10585 input_line_pointer = save;
10589 if (i.log2_scale_factor != 0 && i.index_reg == 0)
10591 as_warn (_("scale factor of %d without an index register"),
10592 1 << i.log2_scale_factor);
10593 i.log2_scale_factor = 0;
10595 scale = input_line_pointer;
10596 input_line_pointer = save;
10601 i386_displacement (char *disp_start, char *disp_end)
10605 char *save_input_line_pointer;
10606 char *gotfree_input_line;
10608 i386_operand_type bigdisp, types = anydisp;
10611 if (i.disp_operands == MAX_MEMORY_OPERANDS)
10613 as_bad (_("at most %d displacement operands are allowed"),
10614 MAX_MEMORY_OPERANDS);
10618 operand_type_set (&bigdisp, 0);
10620 || i.types[this_operand].bitfield.baseindex
10621 || (current_templates->start->opcode_modifier.jump != JUMP
10622 && current_templates->start->opcode_modifier.jump != JUMP_DWORD))
10624 i386_addressing_mode ();
10625 override = (i.prefix[ADDR_PREFIX] != 0);
10626 if (flag_code == CODE_64BIT)
10630 bigdisp.bitfield.disp32s = 1;
10631 bigdisp.bitfield.disp64 = 1;
10634 bigdisp.bitfield.disp32 = 1;
10636 else if ((flag_code == CODE_16BIT) ^ override)
10637 bigdisp.bitfield.disp16 = 1;
10639 bigdisp.bitfield.disp32 = 1;
10643 /* For PC-relative branches, the width of the displacement may be
10644 dependent upon data size, but is never dependent upon address size.
10645 Also make sure to not unintentionally match against a non-PC-relative
10646 branch template. */
10647 static templates aux_templates;
10648 const insn_template *t = current_templates->start;
10649 bfd_boolean has_intel64 = FALSE;
10651 aux_templates.start = t;
10652 while (++t < current_templates->end)
10654 if (t->opcode_modifier.jump
10655 != current_templates->start->opcode_modifier.jump)
10657 if ((t->opcode_modifier.isa64 >= INTEL64))
10658 has_intel64 = TRUE;
10660 if (t < current_templates->end)
10662 aux_templates.end = t;
10663 current_templates = &aux_templates;
10666 override = (i.prefix[DATA_PREFIX] != 0);
10667 if (flag_code == CODE_64BIT)
10669 if ((override || i.suffix == WORD_MNEM_SUFFIX)
10670 && (!intel64 || !has_intel64))
10671 bigdisp.bitfield.disp16 = 1;
10673 bigdisp.bitfield.disp32s = 1;
10678 override = (i.suffix == (flag_code != CODE_16BIT
10680 : LONG_MNEM_SUFFIX));
10681 bigdisp.bitfield.disp32 = 1;
10682 if ((flag_code == CODE_16BIT) ^ override)
10684 bigdisp.bitfield.disp32 = 0;
10685 bigdisp.bitfield.disp16 = 1;
10689 i.types[this_operand] = operand_type_or (i.types[this_operand],
10692 exp = &disp_expressions[i.disp_operands];
10693 i.op[this_operand].disps = exp;
10695 save_input_line_pointer = input_line_pointer;
10696 input_line_pointer = disp_start;
10697 END_STRING_AND_SAVE (disp_end);
10699 #ifndef GCC_ASM_O_HACK
10700 #define GCC_ASM_O_HACK 0
10703 END_STRING_AND_SAVE (disp_end + 1);
10704 if (i.types[this_operand].bitfield.baseIndex
10705 && displacement_string_end[-1] == '+')
10707 /* This hack is to avoid a warning when using the "o"
10708 constraint within gcc asm statements.
10711 #define _set_tssldt_desc(n,addr,limit,type) \
10712 __asm__ __volatile__ ( \
10713 "movw %w2,%0\n\t" \
10714 "movw %w1,2+%0\n\t" \
10715 "rorl $16,%1\n\t" \
10716 "movb %b1,4+%0\n\t" \
10717 "movb %4,5+%0\n\t" \
10718 "movb $0,6+%0\n\t" \
10719 "movb %h1,7+%0\n\t" \
10721 : "=o"(*(n)) : "q" (addr), "ri"(limit), "i"(type))
10723 This works great except that the output assembler ends
10724 up looking a bit weird if it turns out that there is
10725 no offset. You end up producing code that looks like:
10738 So here we provide the missing zero. */
10740 *displacement_string_end = '0';
10743 gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types);
10744 if (gotfree_input_line)
10745 input_line_pointer = gotfree_input_line;
10747 exp_seg = expression (exp);
10749 SKIP_WHITESPACE ();
10750 if (*input_line_pointer)
10751 as_bad (_("junk `%s' after expression"), input_line_pointer);
10753 RESTORE_END_STRING (disp_end + 1);
10755 input_line_pointer = save_input_line_pointer;
10756 if (gotfree_input_line)
10758 free (gotfree_input_line);
10760 if (exp->X_op == O_constant || exp->X_op == O_register)
10761 exp->X_op = O_illegal;
10764 ret = i386_finalize_displacement (exp_seg, exp, types, disp_start);
10766 RESTORE_END_STRING (disp_end);
10772 i386_finalize_displacement (segT exp_seg ATTRIBUTE_UNUSED, expressionS *exp,
10773 i386_operand_type types, const char *disp_start)
10775 i386_operand_type bigdisp;
10778 /* We do this to make sure that the section symbol is in
10779 the symbol table. We will ultimately change the relocation
10780 to be relative to the beginning of the section. */
10781 if (i.reloc[this_operand] == BFD_RELOC_386_GOTOFF
10782 || i.reloc[this_operand] == BFD_RELOC_X86_64_GOTPCREL
10783 || i.reloc[this_operand] == BFD_RELOC_X86_64_GOTOFF64)
10785 if (exp->X_op != O_symbol)
10788 if (S_IS_LOCAL (exp->X_add_symbol)
10789 && S_GET_SEGMENT (exp->X_add_symbol) != undefined_section
10790 && S_GET_SEGMENT (exp->X_add_symbol) != expr_section)
10791 section_symbol (S_GET_SEGMENT (exp->X_add_symbol));
10792 exp->X_op = O_subtract;
10793 exp->X_op_symbol = GOT_symbol;
10794 if (i.reloc[this_operand] == BFD_RELOC_X86_64_GOTPCREL)
10795 i.reloc[this_operand] = BFD_RELOC_32_PCREL;
10796 else if (i.reloc[this_operand] == BFD_RELOC_X86_64_GOTOFF64)
10797 i.reloc[this_operand] = BFD_RELOC_64;
10799 i.reloc[this_operand] = BFD_RELOC_32;
10802 else if (exp->X_op == O_absent
10803 || exp->X_op == O_illegal
10804 || exp->X_op == O_big)
10807 as_bad (_("missing or invalid displacement expression `%s'"),
10812 else if (flag_code == CODE_64BIT
10813 && !i.prefix[ADDR_PREFIX]
10814 && exp->X_op == O_constant)
10816 /* Since displacement is signed extended to 64bit, don't allow
10817 disp32 and turn off disp32s if they are out of range. */
10818 i.types[this_operand].bitfield.disp32 = 0;
10819 if (!fits_in_signed_long (exp->X_add_number))
10821 i.types[this_operand].bitfield.disp32s = 0;
10822 if (i.types[this_operand].bitfield.baseindex)
10824 as_bad (_("0x%lx out range of signed 32bit displacement"),
10825 (long) exp->X_add_number);
10831 #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT))
10832 else if (exp->X_op != O_constant
10833 && OUTPUT_FLAVOR == bfd_target_aout_flavour
10834 && exp_seg != absolute_section
10835 && exp_seg != text_section
10836 && exp_seg != data_section
10837 && exp_seg != bss_section
10838 && exp_seg != undefined_section
10839 && !bfd_is_com_section (exp_seg))
10841 as_bad (_("unimplemented segment %s in operand"), exp_seg->name);
10846 if (current_templates->start->opcode_modifier.jump == JUMP_BYTE
10847 /* Constants get taken care of by optimize_disp(). */
10848 && exp->X_op != O_constant)
10849 i.types[this_operand].bitfield.disp8 = 1;
10851 /* Check if this is a displacement only operand. */
10852 bigdisp = i.types[this_operand];
10853 bigdisp.bitfield.disp8 = 0;
10854 bigdisp.bitfield.disp16 = 0;
10855 bigdisp.bitfield.disp32 = 0;
10856 bigdisp.bitfield.disp32s = 0;
10857 bigdisp.bitfield.disp64 = 0;
10858 if (operand_type_all_zero (&bigdisp))
10859 i.types[this_operand] = operand_type_and (i.types[this_operand],
10865 /* Return the active addressing mode, taking address override and
10866 registers forming the address into consideration. Update the
10867 address override prefix if necessary. */
10869 static enum flag_code
10870 i386_addressing_mode (void)
10872 enum flag_code addr_mode;
10874 if (i.prefix[ADDR_PREFIX])
10875 addr_mode = flag_code == CODE_32BIT ? CODE_16BIT : CODE_32BIT;
10876 else if (flag_code == CODE_16BIT
10877 && current_templates->start->cpu_flags.bitfield.cpumpx
10878 /* Avoid replacing the "16-bit addressing not allowed" diagnostic
10879 from md_assemble() by "is not a valid base/index expression"
10880 when there is a base and/or index. */
10881 && !i.types[this_operand].bitfield.baseindex)
10883 /* MPX insn memory operands with neither base nor index must be forced
10884 to use 32-bit addressing in 16-bit mode. */
10885 addr_mode = CODE_32BIT;
10886 i.prefix[ADDR_PREFIX] = ADDR_PREFIX_OPCODE;
10888 gas_assert (!i.types[this_operand].bitfield.disp16);
10889 gas_assert (!i.types[this_operand].bitfield.disp32);
10893 addr_mode = flag_code;
10895 #if INFER_ADDR_PREFIX
10896 if (i.mem_operands == 0)
10898 /* Infer address prefix from the first memory operand. */
10899 const reg_entry *addr_reg = i.base_reg;
10901 if (addr_reg == NULL)
10902 addr_reg = i.index_reg;
10906 if (addr_reg->reg_type.bitfield.dword)
10907 addr_mode = CODE_32BIT;
10908 else if (flag_code != CODE_64BIT
10909 && addr_reg->reg_type.bitfield.word)
10910 addr_mode = CODE_16BIT;
10912 if (addr_mode != flag_code)
10914 i.prefix[ADDR_PREFIX] = ADDR_PREFIX_OPCODE;
10916 /* Change the size of any displacement too. At most one
10917 of Disp16 or Disp32 is set.
10918 FIXME. There doesn't seem to be any real need for
10919 separate Disp16 and Disp32 flags. The same goes for
10920 Imm16 and Imm32. Removing them would probably clean
10921 up the code quite a lot. */
10922 if (flag_code != CODE_64BIT
10923 && (i.types[this_operand].bitfield.disp16
10924 || i.types[this_operand].bitfield.disp32))
10925 i.types[this_operand]
10926 = operand_type_xor (i.types[this_operand], disp16_32);
10936 /* Make sure the memory operand we've been dealt is valid.
10937 Return 1 on success, 0 on a failure. */
10940 i386_index_check (const char *operand_string)
10942 const char *kind = "base/index";
10943 enum flag_code addr_mode = i386_addressing_mode ();
10945 if (current_templates->start->opcode_modifier.isstring
10946 && !current_templates->start->cpu_flags.bitfield.cpupadlock
10947 && (current_templates->end[-1].opcode_modifier.isstring
10948 || i.mem_operands))
10950 /* Memory operands of string insns are special in that they only allow
10951 a single register (rDI, rSI, or rBX) as their memory address. */
10952 const reg_entry *expected_reg;
10953 static const char *di_si[][2] =
10959 static const char *bx[] = { "ebx", "bx", "rbx" };
10961 kind = "string address";
10963 if (current_templates->start->opcode_modifier.repprefixok)
10965 int es_op = current_templates->end[-1].opcode_modifier.isstring
10966 - IS_STRING_ES_OP0;
10969 if (!current_templates->end[-1].operand_types[0].bitfield.baseindex
10970 || ((!i.mem_operands != !intel_syntax)
10971 && current_templates->end[-1].operand_types[1]
10972 .bitfield.baseindex))
10974 expected_reg = hash_find (reg_hash, di_si[addr_mode][op == es_op]);
10977 expected_reg = hash_find (reg_hash, bx[addr_mode]);
10979 if (i.base_reg != expected_reg
10981 || operand_type_check (i.types[this_operand], disp))
10983 /* The second memory operand must have the same size as
10987 && !((addr_mode == CODE_64BIT
10988 && i.base_reg->reg_type.bitfield.qword)
10989 || (addr_mode == CODE_32BIT
10990 ? i.base_reg->reg_type.bitfield.dword
10991 : i.base_reg->reg_type.bitfield.word)))
10994 as_warn (_("`%s' is not valid here (expected `%c%s%s%c')"),
10996 intel_syntax ? '[' : '(',
10998 expected_reg->reg_name,
10999 intel_syntax ? ']' : ')');
11006 as_bad (_("`%s' is not a valid %s expression"),
11007 operand_string, kind);
11012 if (addr_mode != CODE_16BIT)
11014 /* 32-bit/64-bit checks. */
11016 && ((addr_mode == CODE_64BIT
11017 ? !i.base_reg->reg_type.bitfield.qword
11018 : !i.base_reg->reg_type.bitfield.dword)
11019 || (i.index_reg && i.base_reg->reg_num == RegIP)
11020 || i.base_reg->reg_num == RegIZ))
11022 && !i.index_reg->reg_type.bitfield.xmmword
11023 && !i.index_reg->reg_type.bitfield.ymmword
11024 && !i.index_reg->reg_type.bitfield.zmmword
11025 && ((addr_mode == CODE_64BIT
11026 ? !i.index_reg->reg_type.bitfield.qword
11027 : !i.index_reg->reg_type.bitfield.dword)
11028 || !i.index_reg->reg_type.bitfield.baseindex)))
11031 /* bndmk, bndldx, bndstx and mandatory non-vector SIB have special restrictions. */
11032 if (current_templates->start->base_opcode == 0xf30f1b
11033 || (current_templates->start->base_opcode & ~1) == 0x0f1a
11034 || current_templates->start->opcode_modifier.sib == SIBMEM)
11036 /* They cannot use RIP-relative addressing. */
11037 if (i.base_reg && i.base_reg->reg_num == RegIP)
11039 as_bad (_("`%s' cannot be used here"), operand_string);
11043 /* bndldx and bndstx ignore their scale factor. */
11044 if ((current_templates->start->base_opcode & ~1) == 0x0f1a
11045 && i.log2_scale_factor)
11046 as_warn (_("register scaling is being ignored here"));
11051 /* 16-bit checks. */
11053 && (!i.base_reg->reg_type.bitfield.word
11054 || !i.base_reg->reg_type.bitfield.baseindex))
11056 && (!i.index_reg->reg_type.bitfield.word
11057 || !i.index_reg->reg_type.bitfield.baseindex
11059 && i.base_reg->reg_num < 6
11060 && i.index_reg->reg_num >= 6
11061 && i.log2_scale_factor == 0))))
11068 /* Handle vector immediates. */
11071 RC_SAE_immediate (const char *imm_start)
11073 unsigned int match_found, j;
11074 const char *pstr = imm_start;
11082 for (j = 0; j < ARRAY_SIZE (RC_NamesTable); j++)
11084 if (!strncmp (pstr, RC_NamesTable[j].name, RC_NamesTable[j].len))
11088 rc_op.type = RC_NamesTable[j].type;
11089 rc_op.operand = this_operand;
11090 i.rounding = &rc_op;
11094 as_bad (_("duplicated `%s'"), imm_start);
11097 pstr += RC_NamesTable[j].len;
11105 if (*pstr++ != '}')
11107 as_bad (_("Missing '}': '%s'"), imm_start);
11110 /* RC/SAE immediate string should contain nothing more. */;
11113 as_bad (_("Junk after '}': '%s'"), imm_start);
11117 exp = &im_expressions[i.imm_operands++];
11118 i.op[this_operand].imms = exp;
11120 exp->X_op = O_constant;
11121 exp->X_add_number = 0;
11122 exp->X_add_symbol = (symbolS *) 0;
11123 exp->X_op_symbol = (symbolS *) 0;
11125 i.types[this_operand].bitfield.imm8 = 1;
11129 /* Only string instructions can have a second memory operand, so
11130 reduce current_templates to just those if it contains any. */
11132 maybe_adjust_templates (void)
11134 const insn_template *t;
11136 gas_assert (i.mem_operands == 1);
11138 for (t = current_templates->start; t < current_templates->end; ++t)
11139 if (t->opcode_modifier.isstring)
11142 if (t < current_templates->end)
11144 static templates aux_templates;
11145 bfd_boolean recheck;
11147 aux_templates.start = t;
11148 for (; t < current_templates->end; ++t)
11149 if (!t->opcode_modifier.isstring)
11151 aux_templates.end = t;
11153 /* Determine whether to re-check the first memory operand. */
11154 recheck = (aux_templates.start != current_templates->start
11155 || t != current_templates->end);
11157 current_templates = &aux_templates;
11161 i.mem_operands = 0;
11162 if (i.memop1_string != NULL
11163 && i386_index_check (i.memop1_string) == 0)
11165 i.mem_operands = 1;
11172 /* Parse OPERAND_STRING into the i386_insn structure I. Returns zero
11176 i386_att_operand (char *operand_string)
11178 const reg_entry *r;
11180 char *op_string = operand_string;
11182 if (is_space_char (*op_string))
11185 /* We check for an absolute prefix (differentiating,
11186 for example, 'jmp pc_relative_label' from 'jmp *absolute_label'. */
11187 if (*op_string == ABSOLUTE_PREFIX)
11190 if (is_space_char (*op_string))
11192 i.jumpabsolute = TRUE;
11195 /* Check if operand is a register. */
11196 if ((r = parse_register (op_string, &end_op)) != NULL)
11198 i386_operand_type temp;
11203 /* Check for a segment override by searching for ':' after a
11204 segment register. */
11205 op_string = end_op;
11206 if (is_space_char (*op_string))
11208 if (*op_string == ':' && r->reg_type.bitfield.class == SReg)
11210 switch (r->reg_num)
11213 i.seg[i.mem_operands] = &es;
11216 i.seg[i.mem_operands] = &cs;
11219 i.seg[i.mem_operands] = &ss;
11222 i.seg[i.mem_operands] = &ds;
11225 i.seg[i.mem_operands] = &fs;
11228 i.seg[i.mem_operands] = &gs;
11232 /* Skip the ':' and whitespace. */
11234 if (is_space_char (*op_string))
11237 if (!is_digit_char (*op_string)
11238 && !is_identifier_char (*op_string)
11239 && *op_string != '('
11240 && *op_string != ABSOLUTE_PREFIX)
11242 as_bad (_("bad memory operand `%s'"), op_string);
11245 /* Handle case of %es:*foo. */
11246 if (*op_string == ABSOLUTE_PREFIX)
11249 if (is_space_char (*op_string))
11251 i.jumpabsolute = TRUE;
11253 goto do_memory_reference;
11256 /* Handle vector operations. */
11257 if (*op_string == '{')
11259 op_string = check_VecOperations (op_string, NULL);
11260 if (op_string == NULL)
11266 as_bad (_("junk `%s' after register"), op_string);
11269 temp = r->reg_type;
11270 temp.bitfield.baseindex = 0;
11271 i.types[this_operand] = operand_type_or (i.types[this_operand],
11273 i.types[this_operand].bitfield.unspecified = 0;
11274 i.op[this_operand].regs = r;
11277 else if (*op_string == REGISTER_PREFIX)
11279 as_bad (_("bad register name `%s'"), op_string);
11282 else if (*op_string == IMMEDIATE_PREFIX)
11285 if (i.jumpabsolute)
11287 as_bad (_("immediate operand illegal with absolute jump"));
11290 if (!i386_immediate (op_string))
11293 else if (RC_SAE_immediate (operand_string))
11295 /* If it is a RC or SAE immediate, do nothing. */
11298 else if (is_digit_char (*op_string)
11299 || is_identifier_char (*op_string)
11300 || *op_string == '"'
11301 || *op_string == '(')
11303 /* This is a memory reference of some sort. */
11306 /* Start and end of displacement string expression (if found). */
11307 char *displacement_string_start;
11308 char *displacement_string_end;
11311 do_memory_reference:
11312 if (i.mem_operands == 1 && !maybe_adjust_templates ())
11314 if ((i.mem_operands == 1
11315 && !current_templates->start->opcode_modifier.isstring)
11316 || i.mem_operands == 2)
11318 as_bad (_("too many memory references for `%s'"),
11319 current_templates->start->name);
11323 /* Check for base index form. We detect the base index form by
11324 looking for an ')' at the end of the operand, searching
11325 for the '(' matching it, and finding a REGISTER_PREFIX or ','
11327 base_string = op_string + strlen (op_string);
11329 /* Handle vector operations. */
11330 vop_start = strchr (op_string, '{');
11331 if (vop_start && vop_start < base_string)
11333 if (check_VecOperations (vop_start, base_string) == NULL)
11335 base_string = vop_start;
11339 if (is_space_char (*base_string))
11342 /* If we only have a displacement, set-up for it to be parsed later. */
11343 displacement_string_start = op_string;
11344 displacement_string_end = base_string + 1;
11346 if (*base_string == ')')
11349 unsigned int parens_balanced = 1;
11350 /* We've already checked that the number of left & right ()'s are
11351 equal, so this loop will not be infinite. */
11355 if (*base_string == ')')
11357 if (*base_string == '(')
11360 while (parens_balanced);
11362 temp_string = base_string;
11364 /* Skip past '(' and whitespace. */
11366 if (is_space_char (*base_string))
11369 if (*base_string == ','
11370 || ((i.base_reg = parse_register (base_string, &end_op))
11373 displacement_string_end = temp_string;
11375 i.types[this_operand].bitfield.baseindex = 1;
11379 if (i.base_reg == &bad_reg)
11381 base_string = end_op;
11382 if (is_space_char (*base_string))
11386 /* There may be an index reg or scale factor here. */
11387 if (*base_string == ',')
11390 if (is_space_char (*base_string))
11393 if ((i.index_reg = parse_register (base_string, &end_op))
11396 if (i.index_reg == &bad_reg)
11398 base_string = end_op;
11399 if (is_space_char (*base_string))
11401 if (*base_string == ',')
11404 if (is_space_char (*base_string))
11407 else if (*base_string != ')')
11409 as_bad (_("expecting `,' or `)' "
11410 "after index register in `%s'"),
11415 else if (*base_string == REGISTER_PREFIX)
11417 end_op = strchr (base_string, ',');
11420 as_bad (_("bad register name `%s'"), base_string);
11424 /* Check for scale factor. */
11425 if (*base_string != ')')
11427 char *end_scale = i386_scale (base_string);
11432 base_string = end_scale;
11433 if (is_space_char (*base_string))
11435 if (*base_string != ')')
11437 as_bad (_("expecting `)' "
11438 "after scale factor in `%s'"),
11443 else if (!i.index_reg)
11445 as_bad (_("expecting index register or scale factor "
11446 "after `,'; got '%c'"),
11451 else if (*base_string != ')')
11453 as_bad (_("expecting `,' or `)' "
11454 "after base register in `%s'"),
11459 else if (*base_string == REGISTER_PREFIX)
11461 end_op = strchr (base_string, ',');
11464 as_bad (_("bad register name `%s'"), base_string);
11469 /* If there's an expression beginning the operand, parse it,
11470 assuming displacement_string_start and
11471 displacement_string_end are meaningful. */
11472 if (displacement_string_start != displacement_string_end)
11474 if (!i386_displacement (displacement_string_start,
11475 displacement_string_end))
11479 /* Special case for (%dx) while doing input/output op. */
11481 && i.base_reg->reg_type.bitfield.instance == RegD
11482 && i.base_reg->reg_type.bitfield.word
11483 && i.index_reg == 0
11484 && i.log2_scale_factor == 0
11485 && i.seg[i.mem_operands] == 0
11486 && !operand_type_check (i.types[this_operand], disp))
11488 i.types[this_operand] = i.base_reg->reg_type;
11492 if (i386_index_check (operand_string) == 0)
11494 i.flags[this_operand] |= Operand_Mem;
11495 if (i.mem_operands == 0)
11496 i.memop1_string = xstrdup (operand_string);
11501 /* It's not a memory operand; argh! */
11502 as_bad (_("invalid char %s beginning operand %d `%s'"),
11503 output_invalid (*op_string),
11508 return 1; /* Normal return. */
11511 /* Calculate the maximum variable size (i.e., excluding fr_fix)
11512 that an rs_machine_dependent frag may reach. */
11515 i386_frag_max_var (fragS *frag)
11517 /* The only relaxable frags are for jumps.
11518 Unconditional jumps can grow by 4 bytes and others by 5 bytes. */
11519 gas_assert (frag->fr_type == rs_machine_dependent);
11520 return TYPE_FROM_RELAX_STATE (frag->fr_subtype) == UNCOND_JUMP ? 4 : 5;
11523 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
11525 elf_symbol_resolved_in_segment_p (symbolS *fr_symbol, offsetT fr_var)
11527 /* STT_GNU_IFUNC symbol must go through PLT. */
11528 if ((symbol_get_bfdsym (fr_symbol)->flags
11529 & BSF_GNU_INDIRECT_FUNCTION) != 0)
11532 if (!S_IS_EXTERNAL (fr_symbol))
11533 /* Symbol may be weak or local. */
11534 return !S_IS_WEAK (fr_symbol);
11536 /* Global symbols with non-default visibility can't be preempted. */
11537 if (ELF_ST_VISIBILITY (S_GET_OTHER (fr_symbol)) != STV_DEFAULT)
11540 if (fr_var != NO_RELOC)
11541 switch ((enum bfd_reloc_code_real) fr_var)
11543 case BFD_RELOC_386_PLT32:
11544 case BFD_RELOC_X86_64_PLT32:
11545 /* Symbol with PLT relocation may be preempted. */
11551 /* Global symbols with default visibility in a shared library may be
11552 preempted by another definition. */
11557 /* Table 3-2. Macro-Fusible Instructions in Haswell Microarchitecture
11558 Note also work for Skylake and Cascadelake.
11559 ---------------------------------------------------------------------
11560 | JCC | ADD/SUB/CMP | INC/DEC | TEST/AND |
11561 | ------ | ----------- | ------- | -------- |
11563 | Jno | N | N | Y |
11564 | Jc/Jb | Y | N | Y |
11565 | Jae/Jnb | Y | N | Y |
11566 | Je/Jz | Y | Y | Y |
11567 | Jne/Jnz | Y | Y | Y |
11568 | Jna/Jbe | Y | N | Y |
11569 | Ja/Jnbe | Y | N | Y |
11571 | Jns | N | N | Y |
11572 | Jp/Jpe | N | N | Y |
11573 | Jnp/Jpo | N | N | Y |
11574 | Jl/Jnge | Y | Y | Y |
11575 | Jge/Jnl | Y | Y | Y |
11576 | Jle/Jng | Y | Y | Y |
11577 | Jg/Jnle | Y | Y | Y |
11578 --------------------------------------------------------------------- */
11580 i386_macro_fusible_p (enum mf_cmp_kind mf_cmp, enum mf_jcc_kind mf_jcc)
11582 if (mf_cmp == mf_cmp_alu_cmp)
11583 return ((mf_jcc >= mf_jcc_jc && mf_jcc <= mf_jcc_jna)
11584 || mf_jcc == mf_jcc_jl || mf_jcc == mf_jcc_jle);
11585 if (mf_cmp == mf_cmp_incdec)
11586 return (mf_jcc == mf_jcc_je || mf_jcc == mf_jcc_jl
11587 || mf_jcc == mf_jcc_jle);
11588 if (mf_cmp == mf_cmp_test_and)
11593 /* Return the next non-empty frag. */
11596 i386_next_non_empty_frag (fragS *fragP)
11598 /* There may be a frag with a ".fill 0" when there is no room in
11599 the current frag for frag_grow in output_insn. */
11600 for (fragP = fragP->fr_next;
11602 && fragP->fr_type == rs_fill
11603 && fragP->fr_fix == 0);
11604 fragP = fragP->fr_next)
11609 /* Return the next jcc frag after BRANCH_PADDING. */
11612 i386_next_fusible_jcc_frag (fragS *maybe_cmp_fragP, fragS *pad_fragP)
11614 fragS *branch_fragP;
11618 if (pad_fragP->fr_type == rs_machine_dependent
11619 && (TYPE_FROM_RELAX_STATE (pad_fragP->fr_subtype)
11620 == BRANCH_PADDING))
11622 branch_fragP = i386_next_non_empty_frag (pad_fragP);
11623 if (branch_fragP->fr_type != rs_machine_dependent)
11625 if (TYPE_FROM_RELAX_STATE (branch_fragP->fr_subtype) == COND_JUMP
11626 && i386_macro_fusible_p (maybe_cmp_fragP->tc_frag_data.mf_type,
11627 pad_fragP->tc_frag_data.mf_type))
11628 return branch_fragP;
11634 /* Classify BRANCH_PADDING, BRANCH_PREFIX and FUSED_JCC_PADDING frags. */
11637 i386_classify_machine_dependent_frag (fragS *fragP)
11641 fragS *branch_fragP;
11643 unsigned int max_prefix_length;
11645 if (fragP->tc_frag_data.classified)
11648 /* First scan for BRANCH_PADDING and FUSED_JCC_PADDING. Convert
11649 FUSED_JCC_PADDING and merge BRANCH_PADDING. */
11650 for (next_fragP = fragP;
11651 next_fragP != NULL;
11652 next_fragP = next_fragP->fr_next)
11654 next_fragP->tc_frag_data.classified = 1;
11655 if (next_fragP->fr_type == rs_machine_dependent)
11656 switch (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype))
11658 case BRANCH_PADDING:
11659 /* The BRANCH_PADDING frag must be followed by a branch
11661 branch_fragP = i386_next_non_empty_frag (next_fragP);
11662 next_fragP->tc_frag_data.u.branch_fragP = branch_fragP;
11664 case FUSED_JCC_PADDING:
11665 /* Check if this is a fused jcc:
11667 CMP like instruction
11671 cmp_fragP = i386_next_non_empty_frag (next_fragP);
11672 pad_fragP = i386_next_non_empty_frag (cmp_fragP);
11673 branch_fragP = i386_next_fusible_jcc_frag (next_fragP, pad_fragP);
11676 /* The BRANCH_PADDING frag is merged with the
11677 FUSED_JCC_PADDING frag. */
11678 next_fragP->tc_frag_data.u.branch_fragP = branch_fragP;
11679 /* CMP like instruction size. */
11680 next_fragP->tc_frag_data.cmp_size = cmp_fragP->fr_fix;
11681 frag_wane (pad_fragP);
11682 /* Skip to branch_fragP. */
11683 next_fragP = branch_fragP;
11685 else if (next_fragP->tc_frag_data.max_prefix_length)
11687 /* Turn FUSED_JCC_PADDING into BRANCH_PREFIX if it isn't
11689 next_fragP->fr_subtype
11690 = ENCODE_RELAX_STATE (BRANCH_PREFIX, 0);
11691 next_fragP->tc_frag_data.max_bytes
11692 = next_fragP->tc_frag_data.max_prefix_length;
11693 /* This will be updated in the BRANCH_PREFIX scan. */
11694 next_fragP->tc_frag_data.max_prefix_length = 0;
11697 frag_wane (next_fragP);
11702 /* Stop if there is no BRANCH_PREFIX. */
11703 if (!align_branch_prefix_size)
11706 /* Scan for BRANCH_PREFIX. */
11707 for (; fragP != NULL; fragP = fragP->fr_next)
11709 if (fragP->fr_type != rs_machine_dependent
11710 || (TYPE_FROM_RELAX_STATE (fragP->fr_subtype)
11714 /* Count all BRANCH_PREFIX frags before BRANCH_PADDING and
11715 COND_JUMP_PREFIX. */
11716 max_prefix_length = 0;
11717 for (next_fragP = fragP;
11718 next_fragP != NULL;
11719 next_fragP = next_fragP->fr_next)
11721 if (next_fragP->fr_type == rs_fill)
11722 /* Skip rs_fill frags. */
11724 else if (next_fragP->fr_type != rs_machine_dependent)
11725 /* Stop for all other frags. */
11728 /* rs_machine_dependent frags. */
11729 if (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype)
11732 /* Count BRANCH_PREFIX frags. */
11733 if (max_prefix_length >= MAX_FUSED_JCC_PADDING_SIZE)
11735 max_prefix_length = MAX_FUSED_JCC_PADDING_SIZE;
11736 frag_wane (next_fragP);
11740 += next_fragP->tc_frag_data.max_bytes;
11742 else if ((TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype)
11744 || (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype)
11745 == FUSED_JCC_PADDING))
11747 /* Stop at BRANCH_PADDING and FUSED_JCC_PADDING. */
11748 fragP->tc_frag_data.u.padding_fragP = next_fragP;
11752 /* Stop for other rs_machine_dependent frags. */
11756 fragP->tc_frag_data.max_prefix_length = max_prefix_length;
11758 /* Skip to the next frag. */
11759 fragP = next_fragP;
11763 /* Compute padding size for
11766 CMP like instruction
11768 COND_JUMP/UNCOND_JUMP
11773 COND_JUMP/UNCOND_JUMP
11777 i386_branch_padding_size (fragS *fragP, offsetT address)
11779 unsigned int offset, size, padding_size;
11780 fragS *branch_fragP = fragP->tc_frag_data.u.branch_fragP;
11782 /* The start address of the BRANCH_PADDING or FUSED_JCC_PADDING frag. */
11784 address = fragP->fr_address;
11785 address += fragP->fr_fix;
11787 /* CMP like instrunction size. */
11788 size = fragP->tc_frag_data.cmp_size;
11790 /* The base size of the branch frag. */
11791 size += branch_fragP->fr_fix;
11793 /* Add opcode and displacement bytes for the rs_machine_dependent
11795 if (branch_fragP->fr_type == rs_machine_dependent)
11796 size += md_relax_table[branch_fragP->fr_subtype].rlx_length;
11798 /* Check if branch is within boundary and doesn't end at the last
11800 offset = address & ((1U << align_branch_power) - 1);
11801 if ((offset + size) >= (1U << align_branch_power))
11802 /* Padding needed to avoid crossing boundary. */
11803 padding_size = (1U << align_branch_power) - offset;
11805 /* No padding needed. */
11808 /* The return value may be saved in tc_frag_data.length which is
11810 if (!fits_in_unsigned_byte (padding_size))
11813 return padding_size;
11816 /* i386_generic_table_relax_frag()
11818 Handle BRANCH_PADDING, BRANCH_PREFIX and FUSED_JCC_PADDING frags to
11819 grow/shrink padding to align branch frags. Hand others to
11823 i386_generic_table_relax_frag (segT segment, fragS *fragP, long stretch)
11825 if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PADDING
11826 || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == FUSED_JCC_PADDING)
11828 long padding_size = i386_branch_padding_size (fragP, 0);
11829 long grow = padding_size - fragP->tc_frag_data.length;
11831 /* When the BRANCH_PREFIX frag is used, the computed address
11832 must match the actual address and there should be no padding. */
11833 if (fragP->tc_frag_data.padding_address
11834 && (fragP->tc_frag_data.padding_address != fragP->fr_address
11838 /* Update the padding size. */
11840 fragP->tc_frag_data.length = padding_size;
11844 else if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PREFIX)
11846 fragS *padding_fragP, *next_fragP;
11847 long padding_size, left_size, last_size;
11849 padding_fragP = fragP->tc_frag_data.u.padding_fragP;
11850 if (!padding_fragP)
11851 /* Use the padding set by the leading BRANCH_PREFIX frag. */
11852 return (fragP->tc_frag_data.length
11853 - fragP->tc_frag_data.last_length);
11855 /* Compute the relative address of the padding frag in the very
11856 first time where the BRANCH_PREFIX frag sizes are zero. */
11857 if (!fragP->tc_frag_data.padding_address)
11858 fragP->tc_frag_data.padding_address
11859 = padding_fragP->fr_address - (fragP->fr_address - stretch);
11861 /* First update the last length from the previous interation. */
11862 left_size = fragP->tc_frag_data.prefix_length;
11863 for (next_fragP = fragP;
11864 next_fragP != padding_fragP;
11865 next_fragP = next_fragP->fr_next)
11866 if (next_fragP->fr_type == rs_machine_dependent
11867 && (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype)
11872 int max = next_fragP->tc_frag_data.max_bytes;
11876 if (max > left_size)
11881 next_fragP->tc_frag_data.last_length = size;
11885 next_fragP->tc_frag_data.last_length = 0;
11888 /* Check the padding size for the padding frag. */
11889 padding_size = i386_branch_padding_size
11890 (padding_fragP, (fragP->fr_address
11891 + fragP->tc_frag_data.padding_address));
11893 last_size = fragP->tc_frag_data.prefix_length;
11894 /* Check if there is change from the last interation. */
11895 if (padding_size == last_size)
11897 /* Update the expected address of the padding frag. */
11898 padding_fragP->tc_frag_data.padding_address
11899 = (fragP->fr_address + padding_size
11900 + fragP->tc_frag_data.padding_address);
11904 if (padding_size > fragP->tc_frag_data.max_prefix_length)
11906 /* No padding if there is no sufficient room. Clear the
11907 expected address of the padding frag. */
11908 padding_fragP->tc_frag_data.padding_address = 0;
11912 /* Store the expected address of the padding frag. */
11913 padding_fragP->tc_frag_data.padding_address
11914 = (fragP->fr_address + padding_size
11915 + fragP->tc_frag_data.padding_address);
11917 fragP->tc_frag_data.prefix_length = padding_size;
11919 /* Update the length for the current interation. */
11920 left_size = padding_size;
11921 for (next_fragP = fragP;
11922 next_fragP != padding_fragP;
11923 next_fragP = next_fragP->fr_next)
11924 if (next_fragP->fr_type == rs_machine_dependent
11925 && (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype)
11930 int max = next_fragP->tc_frag_data.max_bytes;
11934 if (max > left_size)
11939 next_fragP->tc_frag_data.length = size;
11943 next_fragP->tc_frag_data.length = 0;
11946 return (fragP->tc_frag_data.length
11947 - fragP->tc_frag_data.last_length);
11949 return relax_frag (segment, fragP, stretch);
11952 /* md_estimate_size_before_relax()
11954 Called just before relax() for rs_machine_dependent frags. The x86
11955 assembler uses these frags to handle variable size jump
11958 Any symbol that is now undefined will not become defined.
11959 Return the correct fr_subtype in the frag.
11960 Return the initial "guess for variable size of frag" to caller.
11961 The guess is actually the growth beyond the fixed part. Whatever
11962 we do to grow the fixed or variable part contributes to our
11966 md_estimate_size_before_relax (fragS *fragP, segT segment)
11968 if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PADDING
11969 || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PREFIX
11970 || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == FUSED_JCC_PADDING)
11972 i386_classify_machine_dependent_frag (fragP);
11973 return fragP->tc_frag_data.length;
11976 /* We've already got fragP->fr_subtype right; all we have to do is
11977 check for un-relaxable symbols. On an ELF system, we can't relax
11978 an externally visible symbol, because it may be overridden by a
11980 if (S_GET_SEGMENT (fragP->fr_symbol) != segment
11981 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
11983 && !elf_symbol_resolved_in_segment_p (fragP->fr_symbol,
11986 #if defined (OBJ_COFF) && defined (TE_PE)
11987 || (OUTPUT_FLAVOR == bfd_target_coff_flavour
11988 && S_IS_WEAK (fragP->fr_symbol))
11992 /* Symbol is undefined in this segment, or we need to keep a
11993 reloc so that weak symbols can be overridden. */
11994 int size = (fragP->fr_subtype & CODE16) ? 2 : 4;
11995 enum bfd_reloc_code_real reloc_type;
11996 unsigned char *opcode;
11999 if (fragP->fr_var != NO_RELOC)
12000 reloc_type = (enum bfd_reloc_code_real) fragP->fr_var;
12001 else if (size == 2)
12002 reloc_type = BFD_RELOC_16_PCREL;
12003 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
12004 else if (need_plt32_p (fragP->fr_symbol))
12005 reloc_type = BFD_RELOC_X86_64_PLT32;
12008 reloc_type = BFD_RELOC_32_PCREL;
12010 old_fr_fix = fragP->fr_fix;
12011 opcode = (unsigned char *) fragP->fr_opcode;
12013 switch (TYPE_FROM_RELAX_STATE (fragP->fr_subtype))
12016 /* Make jmp (0xeb) a (d)word displacement jump. */
12018 fragP->fr_fix += size;
12019 fix_new (fragP, old_fr_fix, size,
12021 fragP->fr_offset, 1,
12027 && (!no_cond_jump_promotion || fragP->fr_var != NO_RELOC))
12029 /* Negate the condition, and branch past an
12030 unconditional jump. */
12033 /* Insert an unconditional jump. */
12035 /* We added two extra opcode bytes, and have a two byte
12037 fragP->fr_fix += 2 + 2;
12038 fix_new (fragP, old_fr_fix + 2, 2,
12040 fragP->fr_offset, 1,
12044 /* Fall through. */
12047 if (no_cond_jump_promotion && fragP->fr_var == NO_RELOC)
12051 fragP->fr_fix += 1;
12052 fixP = fix_new (fragP, old_fr_fix, 1,
12054 fragP->fr_offset, 1,
12055 BFD_RELOC_8_PCREL);
12056 fixP->fx_signed = 1;
12060 /* This changes the byte-displacement jump 0x7N
12061 to the (d)word-displacement jump 0x0f,0x8N. */
12062 opcode[1] = opcode[0] + 0x10;
12063 opcode[0] = TWO_BYTE_OPCODE_ESCAPE;
12064 /* We've added an opcode byte. */
12065 fragP->fr_fix += 1 + size;
12066 fix_new (fragP, old_fr_fix + 1, size,
12068 fragP->fr_offset, 1,
12073 BAD_CASE (fragP->fr_subtype);
12077 return fragP->fr_fix - old_fr_fix;
12080 /* Guess size depending on current relax state. Initially the relax
12081 state will correspond to a short jump and we return 1, because
12082 the variable part of the frag (the branch offset) is one byte
12083 long. However, we can relax a section more than once and in that
12084 case we must either set fr_subtype back to the unrelaxed state,
12085 or return the value for the appropriate branch. */
12086 return md_relax_table[fragP->fr_subtype].rlx_length;
12089 /* Called after relax() is finished.
12091 In: Address of frag.
12092 fr_type == rs_machine_dependent.
12093 fr_subtype is what the address relaxed to.
12095 Out: Any fixSs and constants are set up.
12096 Caller will turn frag into a ".space 0". */
12099 md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT sec ATTRIBUTE_UNUSED,
12102 unsigned char *opcode;
12103 unsigned char *where_to_put_displacement = NULL;
12104 offsetT target_address;
12105 offsetT opcode_address;
12106 unsigned int extension = 0;
12107 offsetT displacement_from_opcode_start;
12109 if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PADDING
12110 || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == FUSED_JCC_PADDING
12111 || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PREFIX)
12113 /* Generate nop padding. */
12114 unsigned int size = fragP->tc_frag_data.length;
12117 if (size > fragP->tc_frag_data.max_bytes)
12123 const char *branch = "branch";
12124 const char *prefix = "";
12125 fragS *padding_fragP;
12126 if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype)
12129 padding_fragP = fragP->tc_frag_data.u.padding_fragP;
12130 switch (fragP->tc_frag_data.default_prefix)
12135 case CS_PREFIX_OPCODE:
12138 case DS_PREFIX_OPCODE:
12141 case ES_PREFIX_OPCODE:
12144 case FS_PREFIX_OPCODE:
12147 case GS_PREFIX_OPCODE:
12150 case SS_PREFIX_OPCODE:
12155 msg = _("%s:%u: add %d%s at 0x%llx to align "
12156 "%s within %d-byte boundary\n");
12158 msg = _("%s:%u: add additional %d%s at 0x%llx to "
12159 "align %s within %d-byte boundary\n");
12163 padding_fragP = fragP;
12164 msg = _("%s:%u: add %d%s-byte nop at 0x%llx to align "
12165 "%s within %d-byte boundary\n");
12169 switch (padding_fragP->tc_frag_data.branch_type)
12171 case align_branch_jcc:
12174 case align_branch_fused:
12175 branch = "fused jcc";
12177 case align_branch_jmp:
12180 case align_branch_call:
12183 case align_branch_indirect:
12184 branch = "indiret branch";
12186 case align_branch_ret:
12193 fprintf (stdout, msg,
12194 fragP->fr_file, fragP->fr_line, size, prefix,
12195 (long long) fragP->fr_address, branch,
12196 1 << align_branch_power);
12198 if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PREFIX)
12199 memset (fragP->fr_opcode,
12200 fragP->tc_frag_data.default_prefix, size);
12202 i386_generate_nops (fragP, (char *) fragP->fr_opcode,
12204 fragP->fr_fix += size;
12209 opcode = (unsigned char *) fragP->fr_opcode;
12211 /* Address we want to reach in file space. */
12212 target_address = S_GET_VALUE (fragP->fr_symbol) + fragP->fr_offset;
12214 /* Address opcode resides at in file space. */
12215 opcode_address = fragP->fr_address + fragP->fr_fix;
12217 /* Displacement from opcode start to fill into instruction. */
12218 displacement_from_opcode_start = target_address - opcode_address;
12220 if ((fragP->fr_subtype & BIG) == 0)
12222 /* Don't have to change opcode. */
12223 extension = 1; /* 1 opcode + 1 displacement */
12224 where_to_put_displacement = &opcode[1];
12228 if (no_cond_jump_promotion
12229 && TYPE_FROM_RELAX_STATE (fragP->fr_subtype) != UNCOND_JUMP)
12230 as_warn_where (fragP->fr_file, fragP->fr_line,
12231 _("long jump required"));
12233 switch (fragP->fr_subtype)
12235 case ENCODE_RELAX_STATE (UNCOND_JUMP, BIG):
12236 extension = 4; /* 1 opcode + 4 displacement */
12238 where_to_put_displacement = &opcode[1];
12241 case ENCODE_RELAX_STATE (UNCOND_JUMP, BIG16):
12242 extension = 2; /* 1 opcode + 2 displacement */
12244 where_to_put_displacement = &opcode[1];
12247 case ENCODE_RELAX_STATE (COND_JUMP, BIG):
12248 case ENCODE_RELAX_STATE (COND_JUMP86, BIG):
12249 extension = 5; /* 2 opcode + 4 displacement */
12250 opcode[1] = opcode[0] + 0x10;
12251 opcode[0] = TWO_BYTE_OPCODE_ESCAPE;
12252 where_to_put_displacement = &opcode[2];
12255 case ENCODE_RELAX_STATE (COND_JUMP, BIG16):
12256 extension = 3; /* 2 opcode + 2 displacement */
12257 opcode[1] = opcode[0] + 0x10;
12258 opcode[0] = TWO_BYTE_OPCODE_ESCAPE;
12259 where_to_put_displacement = &opcode[2];
12262 case ENCODE_RELAX_STATE (COND_JUMP86, BIG16):
12267 where_to_put_displacement = &opcode[3];
12271 BAD_CASE (fragP->fr_subtype);
12276 /* If size if less then four we are sure that the operand fits,
12277 but if it's 4, then it could be that the displacement is larger
12279 if (DISP_SIZE_FROM_RELAX_STATE (fragP->fr_subtype) == 4
12281 && ((addressT) (displacement_from_opcode_start - extension
12282 + ((addressT) 1 << 31))
12283 > (((addressT) 2 << 31) - 1)))
12285 as_bad_where (fragP->fr_file, fragP->fr_line,
12286 _("jump target out of range"));
12287 /* Make us emit 0. */
12288 displacement_from_opcode_start = extension;
12290 /* Now put displacement after opcode. */
12291 md_number_to_chars ((char *) where_to_put_displacement,
12292 (valueT) (displacement_from_opcode_start - extension),
12293 DISP_SIZE_FROM_RELAX_STATE (fragP->fr_subtype));
12294 fragP->fr_fix += extension;
12297 /* Apply a fixup (fixP) to segment data, once it has been determined
12298 by our caller that we have all the info we need to fix it up.
12300 Parameter valP is the pointer to the value of the bits.
12302 On the 386, immediates, displacements, and data pointers are all in
12303 the same (little-endian) format, so we don't need to care about which
12304 we are handling. */
12307 md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
12309 char *p = fixP->fx_where + fixP->fx_frag->fr_literal;
12310 valueT value = *valP;
12312 #if !defined (TE_Mach)
12313 if (fixP->fx_pcrel)
12315 switch (fixP->fx_r_type)
12321 fixP->fx_r_type = BFD_RELOC_64_PCREL;
12324 case BFD_RELOC_X86_64_32S:
12325 fixP->fx_r_type = BFD_RELOC_32_PCREL;
12328 fixP->fx_r_type = BFD_RELOC_16_PCREL;
12331 fixP->fx_r_type = BFD_RELOC_8_PCREL;
12336 if (fixP->fx_addsy != NULL
12337 && (fixP->fx_r_type == BFD_RELOC_32_PCREL
12338 || fixP->fx_r_type == BFD_RELOC_64_PCREL
12339 || fixP->fx_r_type == BFD_RELOC_16_PCREL
12340 || fixP->fx_r_type == BFD_RELOC_8_PCREL)
12341 && !use_rela_relocations)
12343 /* This is a hack. There should be a better way to handle this.
12344 This covers for the fact that bfd_install_relocation will
12345 subtract the current location (for partial_inplace, PC relative
12346 relocations); see more below. */
12350 || OUTPUT_FLAVOR == bfd_target_coff_flavour
12353 value += fixP->fx_where + fixP->fx_frag->fr_address;
12355 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
12358 segT sym_seg = S_GET_SEGMENT (fixP->fx_addsy);
12360 if ((sym_seg == seg
12361 || (symbol_section_p (fixP->fx_addsy)
12362 && sym_seg != absolute_section))
12363 && !generic_force_reloc (fixP))
12365 /* Yes, we add the values in twice. This is because
12366 bfd_install_relocation subtracts them out again. I think
12367 bfd_install_relocation is broken, but I don't dare change
12369 value += fixP->fx_where + fixP->fx_frag->fr_address;
12373 #if defined (OBJ_COFF) && defined (TE_PE)
12374 /* For some reason, the PE format does not store a
12375 section address offset for a PC relative symbol. */
12376 if (S_GET_SEGMENT (fixP->fx_addsy) != seg
12377 || S_IS_WEAK (fixP->fx_addsy))
12378 value += md_pcrel_from (fixP);
12381 #if defined (OBJ_COFF) && defined (TE_PE)
12382 if (fixP->fx_addsy != NULL
12383 && S_IS_WEAK (fixP->fx_addsy)
12384 /* PR 16858: Do not modify weak function references. */
12385 && ! fixP->fx_pcrel)
12387 #if !defined (TE_PEP)
12388 /* For x86 PE weak function symbols are neither PC-relative
12389 nor do they set S_IS_FUNCTION. So the only reliable way
12390 to detect them is to check the flags of their containing
12392 if (S_GET_SEGMENT (fixP->fx_addsy) != NULL
12393 && S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_CODE)
12397 value -= S_GET_VALUE (fixP->fx_addsy);
12401 /* Fix a few things - the dynamic linker expects certain values here,
12402 and we must not disappoint it. */
12403 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
12404 if (IS_ELF && fixP->fx_addsy)
12405 switch (fixP->fx_r_type)
12407 case BFD_RELOC_386_PLT32:
12408 case BFD_RELOC_X86_64_PLT32:
12409 /* Make the jump instruction point to the address of the operand.
12410 At runtime we merely add the offset to the actual PLT entry.
12411 NB: Subtract the offset size only for jump instructions. */
12412 if (fixP->fx_pcrel)
12416 case BFD_RELOC_386_TLS_GD:
12417 case BFD_RELOC_386_TLS_LDM:
12418 case BFD_RELOC_386_TLS_IE_32:
12419 case BFD_RELOC_386_TLS_IE:
12420 case BFD_RELOC_386_TLS_GOTIE:
12421 case BFD_RELOC_386_TLS_GOTDESC:
12422 case BFD_RELOC_X86_64_TLSGD:
12423 case BFD_RELOC_X86_64_TLSLD:
12424 case BFD_RELOC_X86_64_GOTTPOFF:
12425 case BFD_RELOC_X86_64_GOTPC32_TLSDESC:
12426 value = 0; /* Fully resolved at runtime. No addend. */
12428 case BFD_RELOC_386_TLS_LE:
12429 case BFD_RELOC_386_TLS_LDO_32:
12430 case BFD_RELOC_386_TLS_LE_32:
12431 case BFD_RELOC_X86_64_DTPOFF32:
12432 case BFD_RELOC_X86_64_DTPOFF64:
12433 case BFD_RELOC_X86_64_TPOFF32:
12434 case BFD_RELOC_X86_64_TPOFF64:
12435 S_SET_THREAD_LOCAL (fixP->fx_addsy);
12438 case BFD_RELOC_386_TLS_DESC_CALL:
12439 case BFD_RELOC_X86_64_TLSDESC_CALL:
12440 value = 0; /* Fully resolved at runtime. No addend. */
12441 S_SET_THREAD_LOCAL (fixP->fx_addsy);
12445 case BFD_RELOC_VTABLE_INHERIT:
12446 case BFD_RELOC_VTABLE_ENTRY:
12453 #endif /* defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) */
12455 #endif /* !defined (TE_Mach) */
12457 /* Are we finished with this relocation now? */
12458 if (fixP->fx_addsy == NULL)
12460 #if defined (OBJ_COFF) && defined (TE_PE)
12461 else if (fixP->fx_addsy != NULL && S_IS_WEAK (fixP->fx_addsy))
12464 /* Remember value for tc_gen_reloc. */
12465 fixP->fx_addnumber = value;
12466 /* Clear out the frag for now. */
12470 else if (use_rela_relocations)
12472 fixP->fx_no_overflow = 1;
12473 /* Remember value for tc_gen_reloc. */
12474 fixP->fx_addnumber = value;
12478 md_number_to_chars (p, value, fixP->fx_size);
12482 md_atof (int type, char *litP, int *sizeP)
12484 /* This outputs the LITTLENUMs in REVERSE order;
12485 in accord with the bigendian 386. */
12486 return ieee_md_atof (type, litP, sizeP, FALSE);
12489 static char output_invalid_buf[sizeof (unsigned char) * 2 + 6];
12492 output_invalid (int c)
12495 snprintf (output_invalid_buf, sizeof (output_invalid_buf),
12498 snprintf (output_invalid_buf, sizeof (output_invalid_buf),
12499 "(0x%x)", (unsigned char) c);
12500 return output_invalid_buf;
12503 /* Verify that @r can be used in the current context. */
12505 static bfd_boolean check_register (const reg_entry *r)
12507 if (allow_pseudo_reg)
12510 if (operand_type_all_zero (&r->reg_type))
12513 if ((r->reg_type.bitfield.dword
12514 || (r->reg_type.bitfield.class == SReg && r->reg_num > 3)
12515 || r->reg_type.bitfield.class == RegCR
12516 || r->reg_type.bitfield.class == RegDR)
12517 && !cpu_arch_flags.bitfield.cpui386)
12520 if (r->reg_type.bitfield.class == RegTR
12521 && (flag_code == CODE_64BIT
12522 || !cpu_arch_flags.bitfield.cpui386
12523 || cpu_arch_isa_flags.bitfield.cpui586
12524 || cpu_arch_isa_flags.bitfield.cpui686))
12527 if (r->reg_type.bitfield.class == RegMMX && !cpu_arch_flags.bitfield.cpummx)
12530 if (!cpu_arch_flags.bitfield.cpuavx512f)
12532 if (r->reg_type.bitfield.zmmword
12533 || r->reg_type.bitfield.class == RegMask)
12536 if (!cpu_arch_flags.bitfield.cpuavx)
12538 if (r->reg_type.bitfield.ymmword)
12541 if (!cpu_arch_flags.bitfield.cpusse && r->reg_type.bitfield.xmmword)
12546 if (r->reg_type.bitfield.tmmword
12547 && (!cpu_arch_flags.bitfield.cpuamx_tile
12548 || flag_code != CODE_64BIT))
12551 if (r->reg_type.bitfield.class == RegBND && !cpu_arch_flags.bitfield.cpumpx)
12554 /* Don't allow fake index register unless allow_index_reg isn't 0. */
12555 if (!allow_index_reg && r->reg_num == RegIZ)
12558 /* Upper 16 vector registers are only available with VREX in 64bit
12559 mode, and require EVEX encoding. */
12560 if (r->reg_flags & RegVRex)
12562 if (!cpu_arch_flags.bitfield.cpuavx512f
12563 || flag_code != CODE_64BIT)
12566 if (i.vec_encoding == vex_encoding_default)
12567 i.vec_encoding = vex_encoding_evex;
12568 else if (i.vec_encoding != vex_encoding_evex)
12569 i.vec_encoding = vex_encoding_error;
12572 if (((r->reg_flags & (RegRex64 | RegRex)) || r->reg_type.bitfield.qword)
12573 && (!cpu_arch_flags.bitfield.cpulm || r->reg_type.bitfield.class != RegCR)
12574 && flag_code != CODE_64BIT)
12577 if (r->reg_type.bitfield.class == SReg && r->reg_num == RegFlat
12584 /* REG_STRING starts *before* REGISTER_PREFIX. */
12586 static const reg_entry *
12587 parse_real_register (char *reg_string, char **end_op)
12589 char *s = reg_string;
12591 char reg_name_given[MAX_REG_NAME_SIZE + 1];
12592 const reg_entry *r;
12594 /* Skip possible REGISTER_PREFIX and possible whitespace. */
12595 if (*s == REGISTER_PREFIX)
12598 if (is_space_char (*s))
12601 p = reg_name_given;
12602 while ((*p++ = register_chars[(unsigned char) *s]) != '\0')
12604 if (p >= reg_name_given + MAX_REG_NAME_SIZE)
12605 return (const reg_entry *) NULL;
12609 /* For naked regs, make sure that we are not dealing with an identifier.
12610 This prevents confusing an identifier like `eax_var' with register
12612 if (allow_naked_reg && identifier_chars[(unsigned char) *s])
12613 return (const reg_entry *) NULL;
12617 r = (const reg_entry *) hash_find (reg_hash, reg_name_given);
12619 /* Handle floating point regs, allowing spaces in the (i) part. */
12620 if (r == i386_regtab /* %st is first entry of table */)
12622 if (!cpu_arch_flags.bitfield.cpu8087
12623 && !cpu_arch_flags.bitfield.cpu287
12624 && !cpu_arch_flags.bitfield.cpu387
12625 && !allow_pseudo_reg)
12626 return (const reg_entry *) NULL;
12628 if (is_space_char (*s))
12633 if (is_space_char (*s))
12635 if (*s >= '0' && *s <= '7')
12637 int fpr = *s - '0';
12639 if (is_space_char (*s))
12644 r = (const reg_entry *) hash_find (reg_hash, "st(0)");
12649 /* We have "%st(" then garbage. */
12650 return (const reg_entry *) NULL;
12654 return r && check_register (r) ? r : NULL;
12657 /* REG_STRING starts *before* REGISTER_PREFIX. */
12659 static const reg_entry *
12660 parse_register (char *reg_string, char **end_op)
12662 const reg_entry *r;
12664 if (*reg_string == REGISTER_PREFIX || allow_naked_reg)
12665 r = parse_real_register (reg_string, end_op);
12670 char *save = input_line_pointer;
12674 input_line_pointer = reg_string;
12675 c = get_symbol_name (®_string);
12676 symbolP = symbol_find (reg_string);
12677 if (symbolP && S_GET_SEGMENT (symbolP) == reg_section)
12679 const expressionS *e = symbol_get_value_expression (symbolP);
12681 know (e->X_op == O_register);
12682 know (e->X_add_number >= 0
12683 && (valueT) e->X_add_number < i386_regtab_size);
12684 r = i386_regtab + e->X_add_number;
12685 if (!check_register (r))
12687 as_bad (_("register '%s%s' cannot be used here"),
12688 register_prefix, r->reg_name);
12691 *end_op = input_line_pointer;
12693 *input_line_pointer = c;
12694 input_line_pointer = save;
12700 i386_parse_name (char *name, expressionS *e, char *nextcharP)
12702 const reg_entry *r;
12703 char *end = input_line_pointer;
12706 r = parse_register (name, &input_line_pointer);
12707 if (r && end <= input_line_pointer)
12709 *nextcharP = *input_line_pointer;
12710 *input_line_pointer = 0;
12713 e->X_op = O_register;
12714 e->X_add_number = r - i386_regtab;
12717 e->X_op = O_illegal;
12720 input_line_pointer = end;
12722 return intel_syntax ? i386_intel_parse_name (name, e) : 0;
12726 md_operand (expressionS *e)
12729 const reg_entry *r;
12731 switch (*input_line_pointer)
12733 case REGISTER_PREFIX:
12734 r = parse_real_register (input_line_pointer, &end);
12737 e->X_op = O_register;
12738 e->X_add_number = r - i386_regtab;
12739 input_line_pointer = end;
12744 gas_assert (intel_syntax);
12745 end = input_line_pointer++;
12747 if (*input_line_pointer == ']')
12749 ++input_line_pointer;
12750 e->X_op_symbol = make_expr_symbol (e);
12751 e->X_add_symbol = NULL;
12752 e->X_add_number = 0;
12757 e->X_op = O_absent;
12758 input_line_pointer = end;
12765 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
12766 const char *md_shortopts = "kVQ:sqnO::";
12768 const char *md_shortopts = "qnO::";
12771 #define OPTION_32 (OPTION_MD_BASE + 0)
12772 #define OPTION_64 (OPTION_MD_BASE + 1)
12773 #define OPTION_DIVIDE (OPTION_MD_BASE + 2)
12774 #define OPTION_MARCH (OPTION_MD_BASE + 3)
12775 #define OPTION_MTUNE (OPTION_MD_BASE + 4)
12776 #define OPTION_MMNEMONIC (OPTION_MD_BASE + 5)
12777 #define OPTION_MSYNTAX (OPTION_MD_BASE + 6)
12778 #define OPTION_MINDEX_REG (OPTION_MD_BASE + 7)
12779 #define OPTION_MNAKED_REG (OPTION_MD_BASE + 8)
12780 #define OPTION_MRELAX_RELOCATIONS (OPTION_MD_BASE + 9)
12781 #define OPTION_MSSE2AVX (OPTION_MD_BASE + 10)
12782 #define OPTION_MSSE_CHECK (OPTION_MD_BASE + 11)
12783 #define OPTION_MOPERAND_CHECK (OPTION_MD_BASE + 12)
12784 #define OPTION_MAVXSCALAR (OPTION_MD_BASE + 13)
12785 #define OPTION_X32 (OPTION_MD_BASE + 14)
12786 #define OPTION_MADD_BND_PREFIX (OPTION_MD_BASE + 15)
12787 #define OPTION_MEVEXLIG (OPTION_MD_BASE + 16)
12788 #define OPTION_MEVEXWIG (OPTION_MD_BASE + 17)
12789 #define OPTION_MBIG_OBJ (OPTION_MD_BASE + 18)
12790 #define OPTION_MOMIT_LOCK_PREFIX (OPTION_MD_BASE + 19)
12791 #define OPTION_MEVEXRCIG (OPTION_MD_BASE + 20)
12792 #define OPTION_MSHARED (OPTION_MD_BASE + 21)
12793 #define OPTION_MAMD64 (OPTION_MD_BASE + 22)
12794 #define OPTION_MINTEL64 (OPTION_MD_BASE + 23)
12795 #define OPTION_MFENCE_AS_LOCK_ADD (OPTION_MD_BASE + 24)
12796 #define OPTION_X86_USED_NOTE (OPTION_MD_BASE + 25)
12797 #define OPTION_MVEXWIG (OPTION_MD_BASE + 26)
12798 #define OPTION_MALIGN_BRANCH_BOUNDARY (OPTION_MD_BASE + 27)
12799 #define OPTION_MALIGN_BRANCH_PREFIX_SIZE (OPTION_MD_BASE + 28)
12800 #define OPTION_MALIGN_BRANCH (OPTION_MD_BASE + 29)
12801 #define OPTION_MBRANCHES_WITH_32B_BOUNDARIES (OPTION_MD_BASE + 30)
12802 #define OPTION_MLFENCE_AFTER_LOAD (OPTION_MD_BASE + 31)
12803 #define OPTION_MLFENCE_BEFORE_INDIRECT_BRANCH (OPTION_MD_BASE + 32)
12804 #define OPTION_MLFENCE_BEFORE_RET (OPTION_MD_BASE + 33)
12806 struct option md_longopts[] =
12808 {"32", no_argument, NULL, OPTION_32},
12809 #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
12810 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
12811 {"64", no_argument, NULL, OPTION_64},
12813 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
12814 {"x32", no_argument, NULL, OPTION_X32},
12815 {"mshared", no_argument, NULL, OPTION_MSHARED},
12816 {"mx86-used-note", required_argument, NULL, OPTION_X86_USED_NOTE},
12818 {"divide", no_argument, NULL, OPTION_DIVIDE},
12819 {"march", required_argument, NULL, OPTION_MARCH},
12820 {"mtune", required_argument, NULL, OPTION_MTUNE},
12821 {"mmnemonic", required_argument, NULL, OPTION_MMNEMONIC},
12822 {"msyntax", required_argument, NULL, OPTION_MSYNTAX},
12823 {"mindex-reg", no_argument, NULL, OPTION_MINDEX_REG},
12824 {"mnaked-reg", no_argument, NULL, OPTION_MNAKED_REG},
12825 {"msse2avx", no_argument, NULL, OPTION_MSSE2AVX},
12826 {"msse-check", required_argument, NULL, OPTION_MSSE_CHECK},
12827 {"moperand-check", required_argument, NULL, OPTION_MOPERAND_CHECK},
12828 {"mavxscalar", required_argument, NULL, OPTION_MAVXSCALAR},
12829 {"mvexwig", required_argument, NULL, OPTION_MVEXWIG},
12830 {"madd-bnd-prefix", no_argument, NULL, OPTION_MADD_BND_PREFIX},
12831 {"mevexlig", required_argument, NULL, OPTION_MEVEXLIG},
12832 {"mevexwig", required_argument, NULL, OPTION_MEVEXWIG},
12833 # if defined (TE_PE) || defined (TE_PEP)
12834 {"mbig-obj", no_argument, NULL, OPTION_MBIG_OBJ},
12836 {"momit-lock-prefix", required_argument, NULL, OPTION_MOMIT_LOCK_PREFIX},
12837 {"mfence-as-lock-add", required_argument, NULL, OPTION_MFENCE_AS_LOCK_ADD},
12838 {"mrelax-relocations", required_argument, NULL, OPTION_MRELAX_RELOCATIONS},
12839 {"mevexrcig", required_argument, NULL, OPTION_MEVEXRCIG},
12840 {"malign-branch-boundary", required_argument, NULL, OPTION_MALIGN_BRANCH_BOUNDARY},
12841 {"malign-branch-prefix-size", required_argument, NULL, OPTION_MALIGN_BRANCH_PREFIX_SIZE},
12842 {"malign-branch", required_argument, NULL, OPTION_MALIGN_BRANCH},
12843 {"mbranches-within-32B-boundaries", no_argument, NULL, OPTION_MBRANCHES_WITH_32B_BOUNDARIES},
12844 {"mlfence-after-load", required_argument, NULL, OPTION_MLFENCE_AFTER_LOAD},
12845 {"mlfence-before-indirect-branch", required_argument, NULL,
12846 OPTION_MLFENCE_BEFORE_INDIRECT_BRANCH},
12847 {"mlfence-before-ret", required_argument, NULL, OPTION_MLFENCE_BEFORE_RET},
12848 {"mamd64", no_argument, NULL, OPTION_MAMD64},
12849 {"mintel64", no_argument, NULL, OPTION_MINTEL64},
12850 {NULL, no_argument, NULL, 0}
12852 size_t md_longopts_size = sizeof (md_longopts);
12855 md_parse_option (int c, const char *arg)
12858 char *arch, *next, *saved, *type;
12863 optimize_align_code = 0;
12867 quiet_warnings = 1;
12870 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
12871 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
12872 should be emitted or not. FIXME: Not implemented. */
12874 if ((arg[0] != 'y' && arg[0] != 'n') || arg[1])
12878 /* -V: SVR4 argument to print version ID. */
12880 print_version_id ();
12883 /* -k: Ignore for FreeBSD compatibility. */
12888 /* -s: On i386 Solaris, this tells the native assembler to use
12889 .stab instead of .stab.excl. We always use .stab anyhow. */
12892 case OPTION_MSHARED:
12896 case OPTION_X86_USED_NOTE:
12897 if (strcasecmp (arg, "yes") == 0)
12899 else if (strcasecmp (arg, "no") == 0)
12902 as_fatal (_("invalid -mx86-used-note= option: `%s'"), arg);
12907 #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
12908 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
12911 const char **list, **l;
12913 list = bfd_target_list ();
12914 for (l = list; *l != NULL; l++)
12915 if (CONST_STRNEQ (*l, "elf64-x86-64")
12916 || strcmp (*l, "coff-x86-64") == 0
12917 || strcmp (*l, "pe-x86-64") == 0
12918 || strcmp (*l, "pei-x86-64") == 0
12919 || strcmp (*l, "mach-o-x86-64") == 0)
12921 default_arch = "x86_64";
12925 as_fatal (_("no compiled in support for x86_64"));
12931 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
12935 const char **list, **l;
12937 list = bfd_target_list ();
12938 for (l = list; *l != NULL; l++)
12939 if (CONST_STRNEQ (*l, "elf32-x86-64"))
12941 default_arch = "x86_64:32";
12945 as_fatal (_("no compiled in support for 32bit x86_64"));
12949 as_fatal (_("32bit x86_64 is only supported for ELF"));
12954 default_arch = "i386";
12957 case OPTION_DIVIDE:
12958 #ifdef SVR4_COMMENT_CHARS
12963 n = XNEWVEC (char, strlen (i386_comment_chars) + 1);
12965 for (s = i386_comment_chars; *s != '\0'; s++)
12969 i386_comment_chars = n;
12975 saved = xstrdup (arg);
12977 /* Allow -march=+nosse. */
12983 as_fatal (_("invalid -march= option: `%s'"), arg);
12984 next = strchr (arch, '+');
12987 for (j = 0; j < ARRAY_SIZE (cpu_arch); j++)
12989 if (strcmp (arch, cpu_arch [j].name) == 0)
12992 if (! cpu_arch[j].flags.bitfield.cpui386)
12995 cpu_arch_name = cpu_arch[j].name;
12996 cpu_sub_arch_name = NULL;
12997 cpu_arch_flags = cpu_arch[j].flags;
12998 cpu_arch_isa = cpu_arch[j].type;
12999 cpu_arch_isa_flags = cpu_arch[j].flags;
13000 if (!cpu_arch_tune_set)
13002 cpu_arch_tune = cpu_arch_isa;
13003 cpu_arch_tune_flags = cpu_arch_isa_flags;
13007 else if (*cpu_arch [j].name == '.'
13008 && strcmp (arch, cpu_arch [j].name + 1) == 0)
13010 /* ISA extension. */
13011 i386_cpu_flags flags;
13013 flags = cpu_flags_or (cpu_arch_flags,
13014 cpu_arch[j].flags);
13016 if (!cpu_flags_equal (&flags, &cpu_arch_flags))
13018 if (cpu_sub_arch_name)
13020 char *name = cpu_sub_arch_name;
13021 cpu_sub_arch_name = concat (name,
13023 (const char *) NULL);
13027 cpu_sub_arch_name = xstrdup (cpu_arch[j].name);
13028 cpu_arch_flags = flags;
13029 cpu_arch_isa_flags = flags;
13033 = cpu_flags_or (cpu_arch_isa_flags,
13034 cpu_arch[j].flags);
13039 if (j >= ARRAY_SIZE (cpu_arch))
13041 /* Disable an ISA extension. */
13042 for (j = 0; j < ARRAY_SIZE (cpu_noarch); j++)
13043 if (strcmp (arch, cpu_noarch [j].name) == 0)
13045 i386_cpu_flags flags;
13047 flags = cpu_flags_and_not (cpu_arch_flags,
13048 cpu_noarch[j].flags);
13049 if (!cpu_flags_equal (&flags, &cpu_arch_flags))
13051 if (cpu_sub_arch_name)
13053 char *name = cpu_sub_arch_name;
13054 cpu_sub_arch_name = concat (arch,
13055 (const char *) NULL);
13059 cpu_sub_arch_name = xstrdup (arch);
13060 cpu_arch_flags = flags;
13061 cpu_arch_isa_flags = flags;
13066 if (j >= ARRAY_SIZE (cpu_noarch))
13067 j = ARRAY_SIZE (cpu_arch);
13070 if (j >= ARRAY_SIZE (cpu_arch))
13071 as_fatal (_("invalid -march= option: `%s'"), arg);
13075 while (next != NULL);
13081 as_fatal (_("invalid -mtune= option: `%s'"), arg);
13082 for (j = 0; j < ARRAY_SIZE (cpu_arch); j++)
13084 if (strcmp (arg, cpu_arch [j].name) == 0)
13086 cpu_arch_tune_set = 1;
13087 cpu_arch_tune = cpu_arch [j].type;
13088 cpu_arch_tune_flags = cpu_arch[j].flags;
13092 if (j >= ARRAY_SIZE (cpu_arch))
13093 as_fatal (_("invalid -mtune= option: `%s'"), arg);
13096 case OPTION_MMNEMONIC:
13097 if (strcasecmp (arg, "att") == 0)
13098 intel_mnemonic = 0;
13099 else if (strcasecmp (arg, "intel") == 0)
13100 intel_mnemonic = 1;
13102 as_fatal (_("invalid -mmnemonic= option: `%s'"), arg);
13105 case OPTION_MSYNTAX:
13106 if (strcasecmp (arg, "att") == 0)
13108 else if (strcasecmp (arg, "intel") == 0)
13111 as_fatal (_("invalid -msyntax= option: `%s'"), arg);
13114 case OPTION_MINDEX_REG:
13115 allow_index_reg = 1;
13118 case OPTION_MNAKED_REG:
13119 allow_naked_reg = 1;
13122 case OPTION_MSSE2AVX:
13126 case OPTION_MSSE_CHECK:
13127 if (strcasecmp (arg, "error") == 0)
13128 sse_check = check_error;
13129 else if (strcasecmp (arg, "warning") == 0)
13130 sse_check = check_warning;
13131 else if (strcasecmp (arg, "none") == 0)
13132 sse_check = check_none;
13134 as_fatal (_("invalid -msse-check= option: `%s'"), arg);
13137 case OPTION_MOPERAND_CHECK:
13138 if (strcasecmp (arg, "error") == 0)
13139 operand_check = check_error;
13140 else if (strcasecmp (arg, "warning") == 0)
13141 operand_check = check_warning;
13142 else if (strcasecmp (arg, "none") == 0)
13143 operand_check = check_none;
13145 as_fatal (_("invalid -moperand-check= option: `%s'"), arg);
13148 case OPTION_MAVXSCALAR:
13149 if (strcasecmp (arg, "128") == 0)
13150 avxscalar = vex128;
13151 else if (strcasecmp (arg, "256") == 0)
13152 avxscalar = vex256;
13154 as_fatal (_("invalid -mavxscalar= option: `%s'"), arg);
13157 case OPTION_MVEXWIG:
13158 if (strcmp (arg, "0") == 0)
13160 else if (strcmp (arg, "1") == 0)
13163 as_fatal (_("invalid -mvexwig= option: `%s'"), arg);
13166 case OPTION_MADD_BND_PREFIX:
13167 add_bnd_prefix = 1;
13170 case OPTION_MEVEXLIG:
13171 if (strcmp (arg, "128") == 0)
13172 evexlig = evexl128;
13173 else if (strcmp (arg, "256") == 0)
13174 evexlig = evexl256;
13175 else if (strcmp (arg, "512") == 0)
13176 evexlig = evexl512;
13178 as_fatal (_("invalid -mevexlig= option: `%s'"), arg);
13181 case OPTION_MEVEXRCIG:
13182 if (strcmp (arg, "rne") == 0)
13184 else if (strcmp (arg, "rd") == 0)
13186 else if (strcmp (arg, "ru") == 0)
13188 else if (strcmp (arg, "rz") == 0)
13191 as_fatal (_("invalid -mevexrcig= option: `%s'"), arg);
13194 case OPTION_MEVEXWIG:
13195 if (strcmp (arg, "0") == 0)
13197 else if (strcmp (arg, "1") == 0)
13200 as_fatal (_("invalid -mevexwig= option: `%s'"), arg);
13203 # if defined (TE_PE) || defined (TE_PEP)
13204 case OPTION_MBIG_OBJ:
13209 case OPTION_MOMIT_LOCK_PREFIX:
13210 if (strcasecmp (arg, "yes") == 0)
13211 omit_lock_prefix = 1;
13212 else if (strcasecmp (arg, "no") == 0)
13213 omit_lock_prefix = 0;
13215 as_fatal (_("invalid -momit-lock-prefix= option: `%s'"), arg);
13218 case OPTION_MFENCE_AS_LOCK_ADD:
13219 if (strcasecmp (arg, "yes") == 0)
13221 else if (strcasecmp (arg, "no") == 0)
13224 as_fatal (_("invalid -mfence-as-lock-add= option: `%s'"), arg);
13227 case OPTION_MLFENCE_AFTER_LOAD:
13228 if (strcasecmp (arg, "yes") == 0)
13229 lfence_after_load = 1;
13230 else if (strcasecmp (arg, "no") == 0)
13231 lfence_after_load = 0;
13233 as_fatal (_("invalid -mlfence-after-load= option: `%s'"), arg);
13236 case OPTION_MLFENCE_BEFORE_INDIRECT_BRANCH:
13237 if (strcasecmp (arg, "all") == 0)
13239 lfence_before_indirect_branch = lfence_branch_all;
13240 if (lfence_before_ret == lfence_before_ret_none)
13241 lfence_before_ret = lfence_before_ret_shl;
13243 else if (strcasecmp (arg, "memory") == 0)
13244 lfence_before_indirect_branch = lfence_branch_memory;
13245 else if (strcasecmp (arg, "register") == 0)
13246 lfence_before_indirect_branch = lfence_branch_register;
13247 else if (strcasecmp (arg, "none") == 0)
13248 lfence_before_indirect_branch = lfence_branch_none;
13250 as_fatal (_("invalid -mlfence-before-indirect-branch= option: `%s'"),
13254 case OPTION_MLFENCE_BEFORE_RET:
13255 if (strcasecmp (arg, "or") == 0)
13256 lfence_before_ret = lfence_before_ret_or;
13257 else if (strcasecmp (arg, "not") == 0)
13258 lfence_before_ret = lfence_before_ret_not;
13259 else if (strcasecmp (arg, "shl") == 0 || strcasecmp (arg, "yes") == 0)
13260 lfence_before_ret = lfence_before_ret_shl;
13261 else if (strcasecmp (arg, "none") == 0)
13262 lfence_before_ret = lfence_before_ret_none;
13264 as_fatal (_("invalid -mlfence-before-ret= option: `%s'"),
13268 case OPTION_MRELAX_RELOCATIONS:
13269 if (strcasecmp (arg, "yes") == 0)
13270 generate_relax_relocations = 1;
13271 else if (strcasecmp (arg, "no") == 0)
13272 generate_relax_relocations = 0;
13274 as_fatal (_("invalid -mrelax-relocations= option: `%s'"), arg);
13277 case OPTION_MALIGN_BRANCH_BOUNDARY:
13280 long int align = strtoul (arg, &end, 0);
13285 align_branch_power = 0;
13288 else if (align >= 16)
13291 for (align_power = 0;
13293 align >>= 1, align_power++)
13295 /* Limit alignment power to 31. */
13296 if (align == 1 && align_power < 32)
13298 align_branch_power = align_power;
13303 as_fatal (_("invalid -malign-branch-boundary= value: %s"), arg);
13307 case OPTION_MALIGN_BRANCH_PREFIX_SIZE:
13310 int align = strtoul (arg, &end, 0);
13311 /* Some processors only support 5 prefixes. */
13312 if (*end == '\0' && align >= 0 && align < 6)
13314 align_branch_prefix_size = align;
13317 as_fatal (_("invalid -malign-branch-prefix-size= value: %s"),
13322 case OPTION_MALIGN_BRANCH:
13324 saved = xstrdup (arg);
13328 next = strchr (type, '+');
13331 if (strcasecmp (type, "jcc") == 0)
13332 align_branch |= align_branch_jcc_bit;
13333 else if (strcasecmp (type, "fused") == 0)
13334 align_branch |= align_branch_fused_bit;
13335 else if (strcasecmp (type, "jmp") == 0)
13336 align_branch |= align_branch_jmp_bit;
13337 else if (strcasecmp (type, "call") == 0)
13338 align_branch |= align_branch_call_bit;
13339 else if (strcasecmp (type, "ret") == 0)
13340 align_branch |= align_branch_ret_bit;
13341 else if (strcasecmp (type, "indirect") == 0)
13342 align_branch |= align_branch_indirect_bit;
13344 as_fatal (_("invalid -malign-branch= option: `%s'"), arg);
13347 while (next != NULL);
13351 case OPTION_MBRANCHES_WITH_32B_BOUNDARIES:
13352 align_branch_power = 5;
13353 align_branch_prefix_size = 5;
13354 align_branch = (align_branch_jcc_bit
13355 | align_branch_fused_bit
13356 | align_branch_jmp_bit);
13359 case OPTION_MAMD64:
13363 case OPTION_MINTEL64:
13371 /* Turn off -Os. */
13372 optimize_for_space = 0;
13374 else if (*arg == 's')
13376 optimize_for_space = 1;
13377 /* Turn on all encoding optimizations. */
13378 optimize = INT_MAX;
13382 optimize = atoi (arg);
13383 /* Turn off -Os. */
13384 optimize_for_space = 0;
13394 #define MESSAGE_TEMPLATE \
13398 output_message (FILE *stream, char *p, char *message, char *start,
13399 int *left_p, const char *name, int len)
13401 int size = sizeof (MESSAGE_TEMPLATE);
13402 int left = *left_p;
13404 /* Reserve 2 spaces for ", " or ",\0" */
13407 /* Check if there is any room. */
13415 p = mempcpy (p, name, len);
13419 /* Output the current message now and start a new one. */
13422 fprintf (stream, "%s\n", message);
13424 left = size - (start - message) - len - 2;
13426 gas_assert (left >= 0);
13428 p = mempcpy (p, name, len);
13436 show_arch (FILE *stream, int ext, int check)
13438 static char message[] = MESSAGE_TEMPLATE;
13439 char *start = message + 27;
13441 int size = sizeof (MESSAGE_TEMPLATE);
13448 left = size - (start - message);
13449 for (j = 0; j < ARRAY_SIZE (cpu_arch); j++)
13451 /* Should it be skipped? */
13452 if (cpu_arch [j].skip)
13455 name = cpu_arch [j].name;
13456 len = cpu_arch [j].len;
13459 /* It is an extension. Skip if we aren't asked to show it. */
13470 /* It is an processor. Skip if we show only extension. */
13473 else if (check && ! cpu_arch[j].flags.bitfield.cpui386)
13475 /* It is an impossible processor - skip. */
13479 p = output_message (stream, p, message, start, &left, name, len);
13482 /* Display disabled extensions. */
13484 for (j = 0; j < ARRAY_SIZE (cpu_noarch); j++)
13486 name = cpu_noarch [j].name;
13487 len = cpu_noarch [j].len;
13488 p = output_message (stream, p, message, start, &left, name,
13493 fprintf (stream, "%s\n", message);
13497 md_show_usage (FILE *stream)
13499 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
13500 fprintf (stream, _("\
13501 -Qy, -Qn ignored\n\
13502 -V print assembler version number\n\
13505 fprintf (stream, _("\
13506 -n Do not optimize code alignment\n\
13507 -q quieten some warnings\n"));
13508 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
13509 fprintf (stream, _("\
13512 #if defined BFD64 && (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
13513 || defined (TE_PE) || defined (TE_PEP))
13514 fprintf (stream, _("\
13515 --32/--64/--x32 generate 32bit/64bit/x32 code\n"));
13517 #ifdef SVR4_COMMENT_CHARS
13518 fprintf (stream, _("\
13519 --divide do not treat `/' as a comment character\n"));
13521 fprintf (stream, _("\
13522 --divide ignored\n"));
13524 fprintf (stream, _("\
13525 -march=CPU[,+EXTENSION...]\n\
13526 generate code for CPU and EXTENSION, CPU is one of:\n"));
13527 show_arch (stream, 0, 1);
13528 fprintf (stream, _("\
13529 EXTENSION is combination of:\n"));
13530 show_arch (stream, 1, 0);
13531 fprintf (stream, _("\
13532 -mtune=CPU optimize for CPU, CPU is one of:\n"));
13533 show_arch (stream, 0, 0);
13534 fprintf (stream, _("\
13535 -msse2avx encode SSE instructions with VEX prefix\n"));
13536 fprintf (stream, _("\
13537 -msse-check=[none|error|warning] (default: warning)\n\
13538 check SSE instructions\n"));
13539 fprintf (stream, _("\
13540 -moperand-check=[none|error|warning] (default: warning)\n\
13541 check operand combinations for validity\n"));
13542 fprintf (stream, _("\
13543 -mavxscalar=[128|256] (default: 128)\n\
13544 encode scalar AVX instructions with specific vector\n\
13546 fprintf (stream, _("\
13547 -mvexwig=[0|1] (default: 0)\n\
13548 encode VEX instructions with specific VEX.W value\n\
13549 for VEX.W bit ignored instructions\n"));
13550 fprintf (stream, _("\
13551 -mevexlig=[128|256|512] (default: 128)\n\
13552 encode scalar EVEX instructions with specific vector\n\
13554 fprintf (stream, _("\
13555 -mevexwig=[0|1] (default: 0)\n\
13556 encode EVEX instructions with specific EVEX.W value\n\
13557 for EVEX.W bit ignored instructions\n"));
13558 fprintf (stream, _("\
13559 -mevexrcig=[rne|rd|ru|rz] (default: rne)\n\
13560 encode EVEX instructions with specific EVEX.RC value\n\
13561 for SAE-only ignored instructions\n"));
13562 fprintf (stream, _("\
13563 -mmnemonic=[att|intel] "));
13564 if (SYSV386_COMPAT)
13565 fprintf (stream, _("(default: att)\n"));
13567 fprintf (stream, _("(default: intel)\n"));
13568 fprintf (stream, _("\
13569 use AT&T/Intel mnemonic\n"));
13570 fprintf (stream, _("\
13571 -msyntax=[att|intel] (default: att)\n\
13572 use AT&T/Intel syntax\n"));
13573 fprintf (stream, _("\
13574 -mindex-reg support pseudo index registers\n"));
13575 fprintf (stream, _("\
13576 -mnaked-reg don't require `%%' prefix for registers\n"));
13577 fprintf (stream, _("\
13578 -madd-bnd-prefix add BND prefix for all valid branches\n"));
13579 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
13580 fprintf (stream, _("\
13581 -mshared disable branch optimization for shared code\n"));
13582 fprintf (stream, _("\
13583 -mx86-used-note=[no|yes] "));
13584 if (DEFAULT_X86_USED_NOTE)
13585 fprintf (stream, _("(default: yes)\n"));
13587 fprintf (stream, _("(default: no)\n"));
13588 fprintf (stream, _("\
13589 generate x86 used ISA and feature properties\n"));
13591 #if defined (TE_PE) || defined (TE_PEP)
13592 fprintf (stream, _("\
13593 -mbig-obj generate big object files\n"));
13595 fprintf (stream, _("\
13596 -momit-lock-prefix=[no|yes] (default: no)\n\
13597 strip all lock prefixes\n"));
13598 fprintf (stream, _("\
13599 -mfence-as-lock-add=[no|yes] (default: no)\n\
13600 encode lfence, mfence and sfence as\n\
13601 lock addl $0x0, (%%{re}sp)\n"));
13602 fprintf (stream, _("\
13603 -mrelax-relocations=[no|yes] "));
13604 if (DEFAULT_GENERATE_X86_RELAX_RELOCATIONS)
13605 fprintf (stream, _("(default: yes)\n"));
13607 fprintf (stream, _("(default: no)\n"));
13608 fprintf (stream, _("\
13609 generate relax relocations\n"));
13610 fprintf (stream, _("\
13611 -malign-branch-boundary=NUM (default: 0)\n\
13612 align branches within NUM byte boundary\n"));
13613 fprintf (stream, _("\
13614 -malign-branch=TYPE[+TYPE...] (default: jcc+fused+jmp)\n\
13615 TYPE is combination of jcc, fused, jmp, call, ret,\n\
13617 specify types of branches to align\n"));
13618 fprintf (stream, _("\
13619 -malign-branch-prefix-size=NUM (default: 5)\n\
13620 align branches with NUM prefixes per instruction\n"));
13621 fprintf (stream, _("\
13622 -mbranches-within-32B-boundaries\n\
13623 align branches within 32 byte boundary\n"));
13624 fprintf (stream, _("\
13625 -mlfence-after-load=[no|yes] (default: no)\n\
13626 generate lfence after load\n"));
13627 fprintf (stream, _("\
13628 -mlfence-before-indirect-branch=[none|all|register|memory] (default: none)\n\
13629 generate lfence before indirect near branch\n"));
13630 fprintf (stream, _("\
13631 -mlfence-before-ret=[none|or|not|shl|yes] (default: none)\n\
13632 generate lfence before ret\n"));
13633 fprintf (stream, _("\
13634 -mamd64 accept only AMD64 ISA [default]\n"));
13635 fprintf (stream, _("\
13636 -mintel64 accept only Intel64 ISA\n"));
13639 #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \
13640 || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
13641 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
13643 /* Pick the target format to use. */
13646 i386_target_format (void)
13648 if (!strncmp (default_arch, "x86_64", 6))
13650 update_code_flag (CODE_64BIT, 1);
13651 if (default_arch[6] == '\0')
13652 x86_elf_abi = X86_64_ABI;
13654 x86_elf_abi = X86_64_X32_ABI;
13656 else if (!strcmp (default_arch, "i386"))
13657 update_code_flag (CODE_32BIT, 1);
13658 else if (!strcmp (default_arch, "iamcu"))
13660 update_code_flag (CODE_32BIT, 1);
13661 if (cpu_arch_isa == PROCESSOR_UNKNOWN)
13663 static const i386_cpu_flags iamcu_flags = CPU_IAMCU_FLAGS;
13664 cpu_arch_name = "iamcu";
13665 cpu_sub_arch_name = NULL;
13666 cpu_arch_flags = iamcu_flags;
13667 cpu_arch_isa = PROCESSOR_IAMCU;
13668 cpu_arch_isa_flags = iamcu_flags;
13669 if (!cpu_arch_tune_set)
13671 cpu_arch_tune = cpu_arch_isa;
13672 cpu_arch_tune_flags = cpu_arch_isa_flags;
13675 else if (cpu_arch_isa != PROCESSOR_IAMCU)
13676 as_fatal (_("Intel MCU doesn't support `%s' architecture"),
13680 as_fatal (_("unknown architecture"));
13682 if (cpu_flags_all_zero (&cpu_arch_isa_flags))
13683 cpu_arch_isa_flags = cpu_arch[flag_code == CODE_64BIT].flags;
13684 if (cpu_flags_all_zero (&cpu_arch_tune_flags))
13685 cpu_arch_tune_flags = cpu_arch[flag_code == CODE_64BIT].flags;
13687 switch (OUTPUT_FLAVOR)
13689 #if defined (OBJ_MAYBE_AOUT) || defined (OBJ_AOUT)
13690 case bfd_target_aout_flavour:
13691 return AOUT_TARGET_FORMAT;
13693 #if defined (OBJ_MAYBE_COFF) || defined (OBJ_COFF)
13694 # if defined (TE_PE) || defined (TE_PEP)
13695 case bfd_target_coff_flavour:
13696 if (flag_code == CODE_64BIT)
13697 return use_big_obj ? "pe-bigobj-x86-64" : "pe-x86-64";
13699 return use_big_obj ? "pe-bigobj-i386" : "pe-i386";
13700 # elif defined (TE_GO32)
13701 case bfd_target_coff_flavour:
13702 return "coff-go32";
13704 case bfd_target_coff_flavour:
13705 return "coff-i386";
13708 #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF)
13709 case bfd_target_elf_flavour:
13711 const char *format;
13713 switch (x86_elf_abi)
13716 format = ELF_TARGET_FORMAT;
13718 tls_get_addr = "___tls_get_addr";
13722 use_rela_relocations = 1;
13725 tls_get_addr = "__tls_get_addr";
13727 format = ELF_TARGET_FORMAT64;
13729 case X86_64_X32_ABI:
13730 use_rela_relocations = 1;
13733 tls_get_addr = "__tls_get_addr";
13735 disallow_64bit_reloc = 1;
13736 format = ELF_TARGET_FORMAT32;
13739 if (cpu_arch_isa == PROCESSOR_L1OM)
13741 if (x86_elf_abi != X86_64_ABI)
13742 as_fatal (_("Intel L1OM is 64bit only"));
13743 return ELF_TARGET_L1OM_FORMAT;
13745 else if (cpu_arch_isa == PROCESSOR_K1OM)
13747 if (x86_elf_abi != X86_64_ABI)
13748 as_fatal (_("Intel K1OM is 64bit only"));
13749 return ELF_TARGET_K1OM_FORMAT;
13751 else if (cpu_arch_isa == PROCESSOR_IAMCU)
13753 if (x86_elf_abi != I386_ABI)
13754 as_fatal (_("Intel MCU is 32bit only"));
13755 return ELF_TARGET_IAMCU_FORMAT;
13761 #if defined (OBJ_MACH_O)
13762 case bfd_target_mach_o_flavour:
13763 if (flag_code == CODE_64BIT)
13765 use_rela_relocations = 1;
13767 return "mach-o-x86-64";
13770 return "mach-o-i386";
13778 #endif /* OBJ_MAYBE_ more than one */
13781 md_undefined_symbol (char *name)
13783 if (name[0] == GLOBAL_OFFSET_TABLE_NAME[0]
13784 && name[1] == GLOBAL_OFFSET_TABLE_NAME[1]
13785 && name[2] == GLOBAL_OFFSET_TABLE_NAME[2]
13786 && strcmp (name, GLOBAL_OFFSET_TABLE_NAME) == 0)
13790 if (symbol_find (name))
13791 as_bad (_("GOT already in symbol table"));
13792 GOT_symbol = symbol_new (name, undefined_section,
13793 (valueT) 0, &zero_address_frag);
13800 /* Round up a section size to the appropriate boundary. */
13803 md_section_align (segT segment ATTRIBUTE_UNUSED, valueT size)
13805 #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT))
13806 if (OUTPUT_FLAVOR == bfd_target_aout_flavour)
13808 /* For a.out, force the section size to be aligned. If we don't do
13809 this, BFD will align it for us, but it will not write out the
13810 final bytes of the section. This may be a bug in BFD, but it is
13811 easier to fix it here since that is how the other a.out targets
13815 align = bfd_section_alignment (segment);
13816 size = ((size + (1 << align) - 1) & (-((valueT) 1 << align)));
13823 /* On the i386, PC-relative offsets are relative to the start of the
13824 next instruction. That is, the address of the offset, plus its
13825 size, since the offset is always the last part of the insn. */
13828 md_pcrel_from (fixS *fixP)
13830 return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address;
13836 s_bss (int ignore ATTRIBUTE_UNUSED)
13840 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
13842 obj_elf_section_change_hook ();
13844 temp = get_absolute_expression ();
13845 subseg_set (bss_section, (subsegT) temp);
13846 demand_empty_rest_of_line ();
13851 /* Remember constant directive. */
13854 i386_cons_align (int ignore ATTRIBUTE_UNUSED)
13856 if (last_insn.kind != last_insn_directive
13857 && (bfd_section_flags (now_seg) & SEC_CODE))
13859 last_insn.seg = now_seg;
13860 last_insn.kind = last_insn_directive;
13861 last_insn.name = "constant directive";
13862 last_insn.file = as_where (&last_insn.line);
13863 if (lfence_before_ret != lfence_before_ret_none)
13865 if (lfence_before_indirect_branch != lfence_branch_none)
13866 as_warn (_("constant directive skips -mlfence-before-ret "
13867 "and -mlfence-before-indirect-branch"));
13869 as_warn (_("constant directive skips -mlfence-before-ret"));
13871 else if (lfence_before_indirect_branch != lfence_branch_none)
13872 as_warn (_("constant directive skips -mlfence-before-indirect-branch"));
13877 i386_validate_fix (fixS *fixp)
13879 if (fixp->fx_subsy)
13881 if (fixp->fx_subsy == GOT_symbol)
13883 if (fixp->fx_r_type == BFD_RELOC_32_PCREL)
13887 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
13888 if (fixp->fx_tcbit2)
13889 fixp->fx_r_type = (fixp->fx_tcbit
13890 ? BFD_RELOC_X86_64_REX_GOTPCRELX
13891 : BFD_RELOC_X86_64_GOTPCRELX);
13894 fixp->fx_r_type = BFD_RELOC_X86_64_GOTPCREL;
13899 fixp->fx_r_type = BFD_RELOC_386_GOTOFF;
13901 fixp->fx_r_type = BFD_RELOC_X86_64_GOTOFF64;
13903 fixp->fx_subsy = 0;
13906 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
13909 /* NB: Commit 292676c1 resolved PLT32 reloc aganst local symbol
13910 to section. Since PLT32 relocation must be against symbols,
13911 turn such PLT32 relocation into PC32 relocation. */
13913 && (fixp->fx_r_type == BFD_RELOC_386_PLT32
13914 || fixp->fx_r_type == BFD_RELOC_X86_64_PLT32)
13915 && symbol_section_p (fixp->fx_addsy))
13916 fixp->fx_r_type = BFD_RELOC_32_PCREL;
13919 if (fixp->fx_r_type == BFD_RELOC_386_GOT32
13920 && fixp->fx_tcbit2)
13921 fixp->fx_r_type = BFD_RELOC_386_GOT32X;
13928 tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixp)
13931 bfd_reloc_code_real_type code;
13933 switch (fixp->fx_r_type)
13935 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
13936 case BFD_RELOC_SIZE32:
13937 case BFD_RELOC_SIZE64:
13938 if (S_IS_DEFINED (fixp->fx_addsy)
13939 && !S_IS_EXTERNAL (fixp->fx_addsy))
13941 /* Resolve size relocation against local symbol to size of
13942 the symbol plus addend. */
13943 valueT value = S_GET_SIZE (fixp->fx_addsy) + fixp->fx_offset;
13944 if (fixp->fx_r_type == BFD_RELOC_SIZE32
13945 && !fits_in_unsigned_long (value))
13946 as_bad_where (fixp->fx_file, fixp->fx_line,
13947 _("symbol size computation overflow"));
13948 fixp->fx_addsy = NULL;
13949 fixp->fx_subsy = NULL;
13950 md_apply_fix (fixp, (valueT *) &value, NULL);
13954 /* Fall through. */
13956 case BFD_RELOC_X86_64_PLT32:
13957 case BFD_RELOC_X86_64_GOT32:
13958 case BFD_RELOC_X86_64_GOTPCREL:
13959 case BFD_RELOC_X86_64_GOTPCRELX:
13960 case BFD_RELOC_X86_64_REX_GOTPCRELX:
13961 case BFD_RELOC_386_PLT32:
13962 case BFD_RELOC_386_GOT32:
13963 case BFD_RELOC_386_GOT32X:
13964 case BFD_RELOC_386_GOTOFF:
13965 case BFD_RELOC_386_GOTPC:
13966 case BFD_RELOC_386_TLS_GD:
13967 case BFD_RELOC_386_TLS_LDM:
13968 case BFD_RELOC_386_TLS_LDO_32:
13969 case BFD_RELOC_386_TLS_IE_32:
13970 case BFD_RELOC_386_TLS_IE:
13971 case BFD_RELOC_386_TLS_GOTIE:
13972 case BFD_RELOC_386_TLS_LE_32:
13973 case BFD_RELOC_386_TLS_LE:
13974 case BFD_RELOC_386_TLS_GOTDESC:
13975 case BFD_RELOC_386_TLS_DESC_CALL:
13976 case BFD_RELOC_X86_64_TLSGD:
13977 case BFD_RELOC_X86_64_TLSLD:
13978 case BFD_RELOC_X86_64_DTPOFF32:
13979 case BFD_RELOC_X86_64_DTPOFF64:
13980 case BFD_RELOC_X86_64_GOTTPOFF:
13981 case BFD_RELOC_X86_64_TPOFF32:
13982 case BFD_RELOC_X86_64_TPOFF64:
13983 case BFD_RELOC_X86_64_GOTOFF64:
13984 case BFD_RELOC_X86_64_GOTPC32:
13985 case BFD_RELOC_X86_64_GOT64:
13986 case BFD_RELOC_X86_64_GOTPCREL64:
13987 case BFD_RELOC_X86_64_GOTPC64:
13988 case BFD_RELOC_X86_64_GOTPLT64:
13989 case BFD_RELOC_X86_64_PLTOFF64:
13990 case BFD_RELOC_X86_64_GOTPC32_TLSDESC:
13991 case BFD_RELOC_X86_64_TLSDESC_CALL:
13992 case BFD_RELOC_RVA:
13993 case BFD_RELOC_VTABLE_ENTRY:
13994 case BFD_RELOC_VTABLE_INHERIT:
13996 case BFD_RELOC_32_SECREL:
13998 code = fixp->fx_r_type;
14000 case BFD_RELOC_X86_64_32S:
14001 if (!fixp->fx_pcrel)
14003 /* Don't turn BFD_RELOC_X86_64_32S into BFD_RELOC_32. */
14004 code = fixp->fx_r_type;
14007 /* Fall through. */
14009 if (fixp->fx_pcrel)
14011 switch (fixp->fx_size)
14014 as_bad_where (fixp->fx_file, fixp->fx_line,
14015 _("can not do %d byte pc-relative relocation"),
14017 code = BFD_RELOC_32_PCREL;
14019 case 1: code = BFD_RELOC_8_PCREL; break;
14020 case 2: code = BFD_RELOC_16_PCREL; break;
14021 case 4: code = BFD_RELOC_32_PCREL; break;
14023 case 8: code = BFD_RELOC_64_PCREL; break;
14029 switch (fixp->fx_size)
14032 as_bad_where (fixp->fx_file, fixp->fx_line,
14033 _("can not do %d byte relocation"),
14035 code = BFD_RELOC_32;
14037 case 1: code = BFD_RELOC_8; break;
14038 case 2: code = BFD_RELOC_16; break;
14039 case 4: code = BFD_RELOC_32; break;
14041 case 8: code = BFD_RELOC_64; break;
14048 if ((code == BFD_RELOC_32
14049 || code == BFD_RELOC_32_PCREL
14050 || code == BFD_RELOC_X86_64_32S)
14052 && fixp->fx_addsy == GOT_symbol)
14055 code = BFD_RELOC_386_GOTPC;
14057 code = BFD_RELOC_X86_64_GOTPC32;
14059 if ((code == BFD_RELOC_64 || code == BFD_RELOC_64_PCREL)
14061 && fixp->fx_addsy == GOT_symbol)
14063 code = BFD_RELOC_X86_64_GOTPC64;
14066 rel = XNEW (arelent);
14067 rel->sym_ptr_ptr = XNEW (asymbol *);
14068 *rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
14070 rel->address = fixp->fx_frag->fr_address + fixp->fx_where;
14072 if (!use_rela_relocations)
14074 /* HACK: Since i386 ELF uses Rel instead of Rela, encode the
14075 vtable entry to be used in the relocation's section offset. */
14076 if (fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY)
14077 rel->address = fixp->fx_offset;
14078 #if defined (OBJ_COFF) && defined (TE_PE)
14079 else if (fixp->fx_addsy && S_IS_WEAK (fixp->fx_addsy))
14080 rel->addend = fixp->fx_addnumber - (S_GET_VALUE (fixp->fx_addsy) * 2);
14085 /* Use the rela in 64bit mode. */
14088 if (disallow_64bit_reloc)
14091 case BFD_RELOC_X86_64_DTPOFF64:
14092 case BFD_RELOC_X86_64_TPOFF64:
14093 case BFD_RELOC_64_PCREL:
14094 case BFD_RELOC_X86_64_GOTOFF64:
14095 case BFD_RELOC_X86_64_GOT64:
14096 case BFD_RELOC_X86_64_GOTPCREL64:
14097 case BFD_RELOC_X86_64_GOTPC64:
14098 case BFD_RELOC_X86_64_GOTPLT64:
14099 case BFD_RELOC_X86_64_PLTOFF64:
14100 as_bad_where (fixp->fx_file, fixp->fx_line,
14101 _("cannot represent relocation type %s in x32 mode"),
14102 bfd_get_reloc_code_name (code));
14108 if (!fixp->fx_pcrel)
14109 rel->addend = fixp->fx_offset;
14113 case BFD_RELOC_X86_64_PLT32:
14114 case BFD_RELOC_X86_64_GOT32:
14115 case BFD_RELOC_X86_64_GOTPCREL:
14116 case BFD_RELOC_X86_64_GOTPCRELX:
14117 case BFD_RELOC_X86_64_REX_GOTPCRELX:
14118 case BFD_RELOC_X86_64_TLSGD:
14119 case BFD_RELOC_X86_64_TLSLD:
14120 case BFD_RELOC_X86_64_GOTTPOFF:
14121 case BFD_RELOC_X86_64_GOTPC32_TLSDESC:
14122 case BFD_RELOC_X86_64_TLSDESC_CALL:
14123 rel->addend = fixp->fx_offset - fixp->fx_size;
14126 rel->addend = (section->vma
14128 + fixp->fx_addnumber
14129 + md_pcrel_from (fixp));
14134 rel->howto = bfd_reloc_type_lookup (stdoutput, code);
14135 if (rel->howto == NULL)
14137 as_bad_where (fixp->fx_file, fixp->fx_line,
14138 _("cannot represent relocation type %s"),
14139 bfd_get_reloc_code_name (code));
14140 /* Set howto to a garbage value so that we can keep going. */
14141 rel->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32);
14142 gas_assert (rel->howto != NULL);
14148 #include "tc-i386-intel.c"
14151 tc_x86_parse_to_dw2regnum (expressionS *exp)
14153 int saved_naked_reg;
14154 char saved_register_dot;
14156 saved_naked_reg = allow_naked_reg;
14157 allow_naked_reg = 1;
14158 saved_register_dot = register_chars['.'];
14159 register_chars['.'] = '.';
14160 allow_pseudo_reg = 1;
14161 expression_and_evaluate (exp);
14162 allow_pseudo_reg = 0;
14163 register_chars['.'] = saved_register_dot;
14164 allow_naked_reg = saved_naked_reg;
14166 if (exp->X_op == O_register && exp->X_add_number >= 0)
14168 if ((addressT) exp->X_add_number < i386_regtab_size)
14170 exp->X_op = O_constant;
14171 exp->X_add_number = i386_regtab[exp->X_add_number]
14172 .dw2_regnum[flag_code >> 1];
14175 exp->X_op = O_illegal;
14180 tc_x86_frame_initial_instructions (void)
14182 static unsigned int sp_regno[2];
14184 if (!sp_regno[flag_code >> 1])
14186 char *saved_input = input_line_pointer;
14187 char sp[][4] = {"esp", "rsp"};
14190 input_line_pointer = sp[flag_code >> 1];
14191 tc_x86_parse_to_dw2regnum (&exp);
14192 gas_assert (exp.X_op == O_constant);
14193 sp_regno[flag_code >> 1] = exp.X_add_number;
14194 input_line_pointer = saved_input;
14197 cfi_add_CFA_def_cfa (sp_regno[flag_code >> 1], -x86_cie_data_alignment);
14198 cfi_add_CFA_offset (x86_dwarf2_return_column, x86_cie_data_alignment);
14202 x86_dwarf2_addr_size (void)
14204 #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF)
14205 if (x86_elf_abi == X86_64_X32_ABI)
14208 return bfd_arch_bits_per_address (stdoutput) / 8;
14212 i386_elf_section_type (const char *str, size_t len)
14214 if (flag_code == CODE_64BIT
14215 && len == sizeof ("unwind") - 1
14216 && strncmp (str, "unwind", 6) == 0)
14217 return SHT_X86_64_UNWIND;
14224 i386_solaris_fix_up_eh_frame (segT sec)
14226 if (flag_code == CODE_64BIT)
14227 elf_section_type (sec) = SHT_X86_64_UNWIND;
14233 tc_pe_dwarf2_emit_offset (symbolS *symbol, unsigned int size)
14237 exp.X_op = O_secrel;
14238 exp.X_add_symbol = symbol;
14239 exp.X_add_number = 0;
14240 emit_expr (&exp, size);
14244 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
14245 /* For ELF on x86-64, add support for SHF_X86_64_LARGE. */
14248 x86_64_section_letter (int letter, const char **ptr_msg)
14250 if (flag_code == CODE_64BIT)
14253 return SHF_X86_64_LARGE;
14255 *ptr_msg = _("bad .section directive: want a,l,w,x,M,S,G,T in string");
14258 *ptr_msg = _("bad .section directive: want a,w,x,M,S,G,T in string");
14263 x86_64_section_word (char *str, size_t len)
14265 if (len == 5 && flag_code == CODE_64BIT && CONST_STRNEQ (str, "large"))
14266 return SHF_X86_64_LARGE;
14272 handle_large_common (int small ATTRIBUTE_UNUSED)
14274 if (flag_code != CODE_64BIT)
14276 s_comm_internal (0, elf_common_parse);
14277 as_warn (_(".largecomm supported only in 64bit mode, producing .comm"));
14281 static segT lbss_section;
14282 asection *saved_com_section_ptr = elf_com_section_ptr;
14283 asection *saved_bss_section = bss_section;
14285 if (lbss_section == NULL)
14287 flagword applicable;
14288 segT seg = now_seg;
14289 subsegT subseg = now_subseg;
14291 /* The .lbss section is for local .largecomm symbols. */
14292 lbss_section = subseg_new (".lbss", 0);
14293 applicable = bfd_applicable_section_flags (stdoutput);
14294 bfd_set_section_flags (lbss_section, applicable & SEC_ALLOC);
14295 seg_info (lbss_section)->bss = 1;
14297 subseg_set (seg, subseg);
14300 elf_com_section_ptr = &_bfd_elf_large_com_section;
14301 bss_section = lbss_section;
14303 s_comm_internal (0, elf_common_parse);
14305 elf_com_section_ptr = saved_com_section_ptr;
14306 bss_section = saved_bss_section;
14309 #endif /* OBJ_ELF || OBJ_MAYBE_ELF */