1 /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000)
2 Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000
3 Free Software Foundation, Inc.
4 Written by Ian Lance Taylor, Cygnus Support.
6 This file is part of GAS, the GNU Assembler.
8 GAS is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GAS is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GAS; see the file COPYING. If not, write to the Free
20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
28 #include "opcode/ppc.h"
32 #include "dwarf2dbg.h"
39 /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
41 /* Tell the main code what the endianness is. */
42 extern int target_big_endian;
44 /* Whether or not, we've set target_big_endian. */
45 static int set_target_endian = 0;
47 /* Whether to use user friendly register names. */
48 #ifndef TARGET_REG_NAMES_P
50 #define TARGET_REG_NAMES_P true
52 #define TARGET_REG_NAMES_P false
56 static boolean reg_names_p = TARGET_REG_NAMES_P;
58 static boolean register_name PARAMS ((expressionS *));
59 static void ppc_set_cpu PARAMS ((void));
60 static unsigned long ppc_insert_operand
61 PARAMS ((unsigned long insn, const struct powerpc_operand *operand,
62 offsetT val, char *file, unsigned int line));
63 static void ppc_macro PARAMS ((char *str, const struct powerpc_macro *macro));
64 static void ppc_byte PARAMS ((int));
65 static int ppc_is_toc_sym PARAMS ((symbolS *sym));
66 static void ppc_tc PARAMS ((int));
69 static void ppc_comm PARAMS ((int));
70 static void ppc_bb PARAMS ((int));
71 static void ppc_bc PARAMS ((int));
72 static void ppc_bf PARAMS ((int));
73 static void ppc_biei PARAMS ((int));
74 static void ppc_bs PARAMS ((int));
75 static void ppc_eb PARAMS ((int));
76 static void ppc_ec PARAMS ((int));
77 static void ppc_ef PARAMS ((int));
78 static void ppc_es PARAMS ((int));
79 static void ppc_csect PARAMS ((int));
80 static void ppc_change_csect PARAMS ((symbolS *));
81 static void ppc_function PARAMS ((int));
82 static void ppc_extern PARAMS ((int));
83 static void ppc_lglobl PARAMS ((int));
84 static void ppc_section PARAMS ((int));
85 static void ppc_named_section PARAMS ((int));
86 static void ppc_stabx PARAMS ((int));
87 static void ppc_rename PARAMS ((int));
88 static void ppc_toc PARAMS ((int));
89 static void ppc_xcoff_cons PARAMS ((int));
90 static void ppc_machine PARAMS ((int));
91 static void ppc_vbyte PARAMS ((int));
95 static bfd_reloc_code_real_type ppc_elf_suffix PARAMS ((char **, expressionS *));
96 static void ppc_elf_cons PARAMS ((int));
97 static void ppc_elf_rdata PARAMS ((int));
98 static void ppc_elf_lcomm PARAMS ((int));
99 static void ppc_elf_validate_fix PARAMS ((fixS *, segT));
103 static void ppc_set_current_section PARAMS ((segT));
104 static void ppc_previous PARAMS ((int));
105 static void ppc_pdata PARAMS ((int));
106 static void ppc_ydata PARAMS ((int));
107 static void ppc_reldata PARAMS ((int));
108 static void ppc_rdata PARAMS ((int));
109 static void ppc_ualong PARAMS ((int));
110 static void ppc_znop PARAMS ((int));
111 static void ppc_pe_comm PARAMS ((int));
112 static void ppc_pe_section PARAMS ((int));
113 static void ppc_pe_function PARAMS ((int));
114 static void ppc_pe_tocd PARAMS ((int));
117 /* Generic assembler global variables which must be defined by all
121 /* This string holds the chars that always start a comment. If the
122 pre-processor is disabled, these aren't very useful. The macro
123 tc_comment_chars points to this. We use this, rather than the
124 usual comment_chars, so that we can switch for Solaris conventions. */
125 static const char ppc_solaris_comment_chars[] = "#!";
126 static const char ppc_eabi_comment_chars[] = "#";
128 #ifdef TARGET_SOLARIS_COMMENT
129 const char *ppc_comment_chars = ppc_solaris_comment_chars;
131 const char *ppc_comment_chars = ppc_eabi_comment_chars;
134 const char comment_chars[] = "#";
137 /* Characters which start a comment at the beginning of a line. */
138 const char line_comment_chars[] = "#";
140 /* Characters which may be used to separate multiple commands on a
142 const char line_separator_chars[] = ";";
144 /* Characters which are used to indicate an exponent in a floating
146 const char EXP_CHARS[] = "eE";
148 /* Characters which mean that a number is a floating point constant,
150 const char FLT_CHARS[] = "dD";
152 /* The target specific pseudo-ops which we support. */
154 const pseudo_typeS md_pseudo_table[] =
156 /* Pseudo-ops which must be overridden. */
157 { "byte", ppc_byte, 0 },
160 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
161 legitimately belong in the obj-*.c file. However, XCOFF is based
162 on COFF, and is only implemented for the RS/6000. We just use
163 obj-coff.c, and add what we need here. */
164 { "comm", ppc_comm, 0 },
165 { "lcomm", ppc_comm, 1 },
169 { "bi", ppc_biei, 0 },
171 { "csect", ppc_csect, 0 },
172 { "data", ppc_section, 'd' },
176 { "ei", ppc_biei, 1 },
178 { "extern", ppc_extern, 0 },
179 { "function", ppc_function, 0 },
180 { "lglobl", ppc_lglobl, 0 },
181 { "rename", ppc_rename, 0 },
182 { "section", ppc_named_section, 0 },
183 { "stabx", ppc_stabx, 0 },
184 { "text", ppc_section, 't' },
185 { "toc", ppc_toc, 0 },
186 { "long", ppc_xcoff_cons, 2 },
187 { "llong", ppc_xcoff_cons, 3 },
188 { "word", ppc_xcoff_cons, 1 },
189 { "short", ppc_xcoff_cons, 1 },
190 { "vbyte", ppc_vbyte, 0 },
191 { "machine", ppc_machine, 0 },
195 { "long", ppc_elf_cons, 4 },
196 { "word", ppc_elf_cons, 2 },
197 { "short", ppc_elf_cons, 2 },
198 { "rdata", ppc_elf_rdata, 0 },
199 { "rodata", ppc_elf_rdata, 0 },
200 { "lcomm", ppc_elf_lcomm, 0 },
201 { "file", dwarf2_directive_file, 0 },
202 { "loc", dwarf2_directive_loc, 0 },
206 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format */
207 { "previous", ppc_previous, 0 },
208 { "pdata", ppc_pdata, 0 },
209 { "ydata", ppc_ydata, 0 },
210 { "reldata", ppc_reldata, 0 },
211 { "rdata", ppc_rdata, 0 },
212 { "ualong", ppc_ualong, 0 },
213 { "znop", ppc_znop, 0 },
214 { "comm", ppc_pe_comm, 0 },
215 { "lcomm", ppc_pe_comm, 1 },
216 { "section", ppc_pe_section, 0 },
217 { "function", ppc_pe_function,0 },
218 { "tocd", ppc_pe_tocd, 0 },
221 /* This pseudo-op is used even when not generating XCOFF output. */
228 /* Predefined register names if -mregnames (or default for Windows NT). */
229 /* In general, there are lots of them, in an attempt to be compatible */
230 /* with a number of other Windows NT assemblers. */
232 /* Structure to hold information about predefined registers. */
239 /* List of registers that are pre-defined:
241 Each general register has predefined names of the form:
242 1. r<reg_num> which has the value <reg_num>.
243 2. r.<reg_num> which has the value <reg_num>.
245 Each floating point register has predefined names of the form:
246 1. f<reg_num> which has the value <reg_num>.
247 2. f.<reg_num> which has the value <reg_num>.
249 Each vector unit register has predefined names of the form:
250 1. v<reg_num> which has the value <reg_num>.
251 2. v.<reg_num> which has the value <reg_num>.
253 Each condition register has predefined names of the form:
254 1. cr<reg_num> which has the value <reg_num>.
255 2. cr.<reg_num> which has the value <reg_num>.
257 There are individual registers as well:
258 sp or r.sp has the value 1
259 rtoc or r.toc has the value 2
260 fpscr has the value 0
266 dsisr has the value 18
268 sdr1 has the value 25
269 srr0 has the value 26
270 srr1 has the value 27
272 The table is sorted. Suitable for searching by a binary search. */
274 static const struct pd_reg pre_defined_registers[] =
276 { "cr.0", 0 }, /* Condition Registers */
296 { "dar", 19 }, /* Data Access Register */
297 { "dec", 22 }, /* Decrementer */
298 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
300 { "f.0", 0 }, /* Floating point registers */
368 { "lr", 8 }, /* Link Register */
372 { "r.0", 0 }, /* General Purpose Registers */
405 { "r.sp", 1 }, /* Stack Pointer */
407 { "r.toc", 2 }, /* Pointer to the table of contents */
409 { "r0", 0 }, /* More general purpose registers */
442 { "rtoc", 2 }, /* Table of contents */
444 { "sdr1", 25 }, /* Storage Description Register 1 */
448 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
449 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
451 { "v.0", 0 }, /* Vector registers */
521 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
523 /* Given NAME, find the register number associated with that name, return
524 the integer value associated with the given name or -1 on failure. */
526 static int reg_name_search
527 PARAMS ((const struct pd_reg *, int, const char * name));
530 reg_name_search (regs, regcount, name)
531 const struct pd_reg *regs;
535 int middle, low, high;
543 middle = (low + high) / 2;
544 cmp = strcasecmp (name, regs[middle].name);
550 return regs[middle].value;
558 * Summary of register_name().
560 * in: Input_line_pointer points to 1st char of operand.
562 * out: A expressionS.
563 * The operand may have been a register: in this case, X_op == O_register,
564 * X_add_number is set to the register number, and truth is returned.
565 * Input_line_pointer->(next non-blank) char after operand, or is in its
570 register_name (expressionP)
571 expressionS *expressionP;
578 /* Find the spelling of the operand */
579 start = name = input_line_pointer;
580 if (name[0] == '%' && isalpha (name[1]))
581 name = ++input_line_pointer;
583 else if (!reg_names_p || !isalpha (name[0]))
586 c = get_symbol_end ();
587 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
589 /* look to see if it's in the register table */
592 expressionP->X_op = O_register;
593 expressionP->X_add_number = reg_number;
595 /* make the rest nice */
596 expressionP->X_add_symbol = NULL;
597 expressionP->X_op_symbol = NULL;
598 *input_line_pointer = c; /* put back the delimiting char */
603 /* reset the line as if we had not done anything */
604 *input_line_pointer = c; /* put back the delimiting char */
605 input_line_pointer = start; /* reset input_line pointer */
610 /* This function is called for each symbol seen in an expression. It
611 handles the special parsing which PowerPC assemblers are supposed
612 to use for condition codes. */
614 /* Whether to do the special parsing. */
615 static boolean cr_operand;
617 /* Names to recognize in a condition code. This table is sorted. */
618 static const struct pd_reg cr_names[] =
635 /* Parsing function. This returns non-zero if it recognized an
639 ppc_parse_name (name, expr)
648 val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0],
653 expr->X_op = O_constant;
654 expr->X_add_number = val;
659 /* Local variables. */
661 /* The type of processor we are assembling for. This is one or more
662 of the PPC_OPCODE flags defined in opcode/ppc.h. */
663 static int ppc_cpu = 0;
665 /* The size of the processor we are assembling for. This is either
666 PPC_OPCODE_32 or PPC_OPCODE_64. */
667 static unsigned long ppc_size = PPC_OPCODE_32;
669 /* Whether to target xcoff64 */
670 static int ppc_xcoff64 = 0;
672 /* Opcode hash table. */
673 static struct hash_control *ppc_hash;
675 /* Macro hash table. */
676 static struct hash_control *ppc_macro_hash;
679 /* What type of shared library support to use */
680 static enum { SHLIB_NONE, SHLIB_PIC, SHLIB_MRELOCATABLE } shlib = SHLIB_NONE;
682 /* Flags to set in the elf header */
683 static flagword ppc_flags = 0;
685 /* Whether this is Solaris or not. */
686 #ifdef TARGET_SOLARIS_COMMENT
687 #define SOLARIS_P true
689 #define SOLARIS_P false
692 static boolean msolaris = SOLARIS_P;
697 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
698 using a bunch of different sections. These assembler sections,
699 however, are all encompassed within the .text or .data sections of
700 the final output file. We handle this by using different
701 subsegments within these main segments. */
703 /* Next subsegment to allocate within the .text segment. */
704 static subsegT ppc_text_subsegment = 2;
706 /* Linked list of csects in the text section. */
707 static symbolS *ppc_text_csects;
709 /* Next subsegment to allocate within the .data segment. */
710 static subsegT ppc_data_subsegment = 2;
712 /* Linked list of csects in the data section. */
713 static symbolS *ppc_data_csects;
715 /* The current csect. */
716 static symbolS *ppc_current_csect;
718 /* The RS/6000 assembler uses a TOC which holds addresses of functions
719 and variables. Symbols are put in the TOC with the .tc pseudo-op.
720 A special relocation is used when accessing TOC entries. We handle
721 the TOC as a subsegment within the .data segment. We set it up if
722 we see a .toc pseudo-op, and save the csect symbol here. */
723 static symbolS *ppc_toc_csect;
725 /* The first frag in the TOC subsegment. */
726 static fragS *ppc_toc_frag;
728 /* The first frag in the first subsegment after the TOC in the .data
729 segment. NULL if there are no subsegments after the TOC. */
730 static fragS *ppc_after_toc_frag;
732 /* The current static block. */
733 static symbolS *ppc_current_block;
735 /* The COFF debugging section; set by md_begin. This is not the
736 .debug section, but is instead the secret BFD section which will
737 cause BFD to set the section number of a symbol to N_DEBUG. */
738 static asection *ppc_coff_debug_section;
740 #endif /* OBJ_XCOFF */
744 /* Various sections that we need for PE coff support. */
745 static segT ydata_section;
746 static segT pdata_section;
747 static segT reldata_section;
748 static segT rdata_section;
749 static segT tocdata_section;
751 /* The current section and the previous section. See ppc_previous. */
752 static segT ppc_previous_section;
753 static segT ppc_current_section;
758 symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
762 CONST char *md_shortopts = "b:l:usm:K:VQ:";
764 CONST char *md_shortopts = "um:";
766 struct option md_longopts[] = {
767 {NULL, no_argument, NULL, 0}
769 size_t md_longopts_size = sizeof (md_longopts);
772 md_parse_option (c, arg)
779 /* -u means that any undefined symbols should be treated as
780 external, which is the default for gas anyhow. */
785 /* Solaris as takes -le (presumably for little endian). For completeness
786 sake, recognize -be also. */
787 if (strcmp (arg, "e") == 0)
789 target_big_endian = 0;
790 set_target_endian = 1;
798 if (strcmp (arg, "e") == 0)
800 target_big_endian = 1;
801 set_target_endian = 1;
809 /* Recognize -K PIC */
810 if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
813 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
821 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
823 if (strcmp (arg, "64") == 0)
825 else if (strcmp (arg, "32") == 0)
832 /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2
834 if (strcmp (arg, "pwrx") == 0 || strcmp (arg, "pwr2") == 0)
835 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_POWER2;
836 /* -mpwr means to assemble for the IBM POWER (RIOS1). */
837 else if (strcmp (arg, "pwr") == 0)
838 ppc_cpu = PPC_OPCODE_POWER;
839 /* -m601 means to assemble for the Motorola PowerPC 601, which includes
840 instructions that are holdovers from the Power. */
841 else if (strcmp (arg, "601") == 0)
842 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_601;
843 /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the
844 Motorola PowerPC 603/604. */
845 else if (strcmp (arg, "ppc") == 0
846 || strcmp (arg, "ppc32") == 0
847 || strcmp (arg, "403") == 0
848 || strcmp (arg, "405") == 0
849 || strcmp (arg, "603") == 0
850 || strcmp (arg, "604") == 0)
851 ppc_cpu = PPC_OPCODE_PPC;
852 else if (strcmp (arg, "7400") == 0)
853 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_ALTIVEC;
854 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
856 else if (strcmp (arg, "ppc64") == 0 || strcmp (arg, "620") == 0)
858 ppc_cpu = PPC_OPCODE_PPC;
859 ppc_size = PPC_OPCODE_64;
861 else if (strcmp (arg, "ppc64bridge") == 0)
863 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_64_BRIDGE;
864 ppc_size = PPC_OPCODE_64;
866 /* -mcom means assemble for the common intersection between Power
867 and PowerPC. At present, we just allow the union, rather
868 than the intersection. */
869 else if (strcmp (arg, "com") == 0)
870 ppc_cpu = PPC_OPCODE_COMMON;
871 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
872 else if (strcmp (arg, "any") == 0)
873 ppc_cpu = PPC_OPCODE_ANY;
875 else if (strcmp (arg, "regnames") == 0)
878 else if (strcmp (arg, "no-regnames") == 0)
882 /* -mrelocatable/-mrelocatable-lib -- warn about initializations that require relocation */
883 else if (strcmp (arg, "relocatable") == 0)
885 shlib = SHLIB_MRELOCATABLE;
886 ppc_flags |= EF_PPC_RELOCATABLE;
889 else if (strcmp (arg, "relocatable-lib") == 0)
891 shlib = SHLIB_MRELOCATABLE;
892 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
895 /* -memb, set embedded bit */
896 else if (strcmp (arg, "emb") == 0)
897 ppc_flags |= EF_PPC_EMB;
899 /* -mlittle/-mbig set the endianess */
900 else if (strcmp (arg, "little") == 0 || strcmp (arg, "little-endian") == 0)
902 target_big_endian = 0;
903 set_target_endian = 1;
906 else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0)
908 target_big_endian = 1;
909 set_target_endian = 1;
912 else if (strcmp (arg, "solaris") == 0)
915 ppc_comment_chars = ppc_solaris_comment_chars;
918 else if (strcmp (arg, "no-solaris") == 0)
921 ppc_comment_chars = ppc_eabi_comment_chars;
926 as_bad (_("invalid switch -m%s"), arg);
932 /* -V: SVR4 argument to print version ID. */
937 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
938 should be emitted or not. FIXME: Not implemented. */
942 /* Solaris takes -s to specify that .stabs go in a .stabs section,
943 rather than .stabs.excl, which is ignored by the linker.
944 FIXME: Not implemented. */
960 md_show_usage (stream)
963 fprintf (stream, _("\
966 -mpwrx, -mpwr2 generate code for IBM POWER/2 (RIOS2)\n\
967 -mpwr generate code for IBM POWER (RIOS1)\n\
968 -m601 generate code for Motorola PowerPC 601\n\
969 -mppc, -mppc32, -m403, -m405, -m603, -m604\n\
970 generate code for Motorola PowerPC 603/604\n\
971 -mppc64, -m620 generate code for Motorola PowerPC 620\n\
972 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
973 -mcom generate code Power/PowerPC common instructions\n\
974 -many generate code for any architecture (PWR/PWRX/PPC)\n\
975 -mregnames Allow symbolic names for registers\n\
976 -mno-regnames Do not allow symbolic names for registers\n"));
978 fprintf (stream, _("\
979 -mrelocatable support for GCC's -mrelocatble option\n\
980 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
981 -memb set PPC_EMB bit in ELF flags\n\
982 -mlittle, -mlittle-endian\n\
983 generate code for a little endian machine\n\
984 -mbig, -mbig-endian generate code for a big endian machine\n\
985 -msolaris generate code for Solaris\n\
986 -mno-solaris do not generate code for Solaris\n\
987 -V print assembler version number\n\
988 -Qy, -Qn ignored\n"));
992 /* Set ppc_cpu if it is not already set. */
997 const char *default_os = TARGET_OS;
998 const char *default_cpu = TARGET_CPU;
1002 if (strncmp (default_os, "aix", 3) == 0
1003 && default_os[3] >= '4' && default_os[3] <= '9')
1004 ppc_cpu = PPC_OPCODE_COMMON;
1005 else if (strncmp (default_os, "aix3", 4) == 0)
1006 ppc_cpu = PPC_OPCODE_POWER;
1007 else if (strcmp (default_cpu, "rs6000") == 0)
1008 ppc_cpu = PPC_OPCODE_POWER;
1009 else if (strcmp (default_cpu, "powerpc") == 0
1010 || strcmp (default_cpu, "powerpcle") == 0)
1011 ppc_cpu = PPC_OPCODE_PPC;
1013 as_fatal (_("Unknown default cpu = %s, os = %s"), default_cpu, default_os);
1017 /* Figure out the BFD architecture to use. */
1019 enum bfd_architecture
1022 const char *default_cpu = TARGET_CPU;
1025 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1026 return bfd_arch_powerpc;
1027 else if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1028 return bfd_arch_rs6000;
1029 else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1031 if (strcmp (default_cpu, "rs6000") == 0)
1032 return bfd_arch_rs6000;
1033 else if (strcmp (default_cpu, "powerpc") == 0
1034 || strcmp (default_cpu, "powerpcle") == 0)
1035 return bfd_arch_powerpc;
1038 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1039 return bfd_arch_unknown;
1045 return (ppc_size == PPC_OPCODE_64) ? 620 : 0;
1051 return (ppc_xcoff64) ? 3 : 2;
1059 return (target_big_endian ? "pe-powerpc" : "pe-powerpcle");
1062 return (ppc_xcoff64 ? "aixcoff64-rs6000" : "aixcoff-rs6000");
1065 return "xcoff-powermac";
1069 return (target_big_endian ? "elf32-powerpc" : "elf32-powerpcle");
1073 /* This function is called when the assembler starts up. It is called
1074 after the options have been parsed and the output file has been
1080 register const struct powerpc_opcode *op;
1081 const struct powerpc_opcode *op_end;
1082 const struct powerpc_macro *macro;
1083 const struct powerpc_macro *macro_end;
1084 boolean dup_insn = false;
1089 /* Set the ELF flags if desired. */
1090 if (ppc_flags && !msolaris)
1091 bfd_set_private_flags (stdoutput, ppc_flags);
1094 /* Insert the opcodes into a hash table. */
1095 ppc_hash = hash_new ();
1097 op_end = powerpc_opcodes + powerpc_num_opcodes;
1098 for (op = powerpc_opcodes; op < op_end; op++)
1100 know ((op->opcode & op->mask) == op->opcode);
1102 if ((op->flags & ppc_cpu) != 0
1103 && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0
1104 || (op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == ppc_size
1105 || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0))
1109 retval = hash_insert (ppc_hash, op->name, (PTR) op);
1110 if (retval != (const char *) NULL)
1112 /* Ignore Power duplicates for -m601 */
1113 if ((ppc_cpu & PPC_OPCODE_601) != 0
1114 && (op->flags & PPC_OPCODE_POWER) != 0)
1117 as_bad (_("Internal assembler error for instruction %s"), op->name);
1123 /* Insert the macros into a hash table. */
1124 ppc_macro_hash = hash_new ();
1126 macro_end = powerpc_macros + powerpc_num_macros;
1127 for (macro = powerpc_macros; macro < macro_end; macro++)
1129 if ((macro->flags & ppc_cpu) != 0)
1133 retval = hash_insert (ppc_macro_hash, macro->name, (PTR) macro);
1134 if (retval != (const char *) NULL)
1136 as_bad (_("Internal assembler error for macro %s"), macro->name);
1145 /* Tell the main code what the endianness is if it is not overidden by the user. */
1146 if (!set_target_endian)
1148 set_target_endian = 1;
1149 target_big_endian = PPC_BIG_ENDIAN;
1153 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1155 /* Create dummy symbols to serve as initial csects. This forces the
1156 text csects to precede the data csects. These symbols will not
1158 ppc_text_csects = symbol_make ("dummy\001");
1159 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
1160 ppc_data_csects = symbol_make ("dummy\001");
1161 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
1166 ppc_current_section = text_section;
1167 ppc_previous_section = 0;
1172 /* Insert an operand value into an instruction. */
1174 static unsigned long
1175 ppc_insert_operand (insn, operand, val, file, line)
1177 const struct powerpc_operand *operand;
1182 if (operand->bits != 32)
1187 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1189 if ((operand->flags & PPC_OPERAND_SIGNOPT) != 0)
1190 max = (1 << operand->bits) - 1;
1192 max = (1 << (operand->bits - 1)) - 1;
1193 min = - (1 << (operand->bits - 1));
1195 if (ppc_size == PPC_OPCODE_32)
1197 /* Some people write 32 bit hex constants with the sign
1198 extension done by hand. This shouldn't really be
1199 valid, but, to permit this code to assemble on a 64
1200 bit host, we sign extend the 32 bit value. */
1202 && (val & (offsetT) 0x80000000) != 0
1203 && (val & (offsetT) 0xffffffff) == val)
1212 max = (1 << operand->bits) - 1;
1216 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1221 if (test < (offsetT) min || test > (offsetT) max)
1224 _("operand out of range (%s not between %ld and %ld)");
1227 sprint_value (buf, test);
1228 if (file == (char *) NULL)
1229 as_bad (err, buf, min, max);
1231 as_bad_where (file, line, err, buf, min, max);
1235 if (operand->insert)
1240 insn = (*operand->insert) (insn, (long) val, &errmsg);
1241 if (errmsg != (const char *) NULL)
1245 insn |= (((long) val & ((1 << operand->bits) - 1))
1253 /* Parse @got, etc. and return the desired relocation. */
1254 static bfd_reloc_code_real_type
1255 ppc_elf_suffix (str_p, exp_p)
1262 bfd_reloc_code_real_type reloc;
1270 struct map_bfd *ptr;
1272 #define MAP(str,reloc) { str, sizeof (str)-1, reloc }
1274 static struct map_bfd mapping[] = {
1275 MAP ("l", BFD_RELOC_LO16),
1276 MAP ("h", BFD_RELOC_HI16),
1277 MAP ("ha", BFD_RELOC_HI16_S),
1278 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN),
1279 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN),
1280 MAP ("got", BFD_RELOC_16_GOTOFF),
1281 MAP ("got@l", BFD_RELOC_LO16_GOTOFF),
1282 MAP ("got@h", BFD_RELOC_HI16_GOTOFF),
1283 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF),
1284 MAP ("fixup", BFD_RELOC_CTOR), /* warnings with -mrelocatable */
1285 MAP ("plt", BFD_RELOC_24_PLT_PCREL),
1286 MAP ("pltrel24", BFD_RELOC_24_PLT_PCREL),
1287 MAP ("copy", BFD_RELOC_PPC_COPY),
1288 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT),
1289 MAP ("local24pc", BFD_RELOC_PPC_LOCAL24PC),
1290 MAP ("local", BFD_RELOC_PPC_LOCAL24PC),
1291 MAP ("pltrel", BFD_RELOC_32_PLT_PCREL),
1292 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF),
1293 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF),
1294 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF),
1295 MAP ("sdarel", BFD_RELOC_GPREL16),
1296 MAP ("sectoff", BFD_RELOC_32_BASEREL),
1297 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL),
1298 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL),
1299 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL),
1300 MAP ("naddr", BFD_RELOC_PPC_EMB_NADDR32),
1301 MAP ("naddr16", BFD_RELOC_PPC_EMB_NADDR16),
1302 MAP ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO),
1303 MAP ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI),
1304 MAP ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA),
1305 MAP ("sdai16", BFD_RELOC_PPC_EMB_SDAI16),
1306 MAP ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL),
1307 MAP ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16),
1308 MAP ("sda21", BFD_RELOC_PPC_EMB_SDA21),
1309 MAP ("mrkref", BFD_RELOC_PPC_EMB_MRKREF),
1310 MAP ("relsect", BFD_RELOC_PPC_EMB_RELSEC16),
1311 MAP ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO),
1312 MAP ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI),
1313 MAP ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA),
1314 MAP ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD),
1315 MAP ("relsda", BFD_RELOC_PPC_EMB_RELSDA),
1316 MAP ("xgot", BFD_RELOC_PPC_TOC16),
1318 { (char *)0, 0, BFD_RELOC_UNUSED }
1322 return BFD_RELOC_UNUSED;
1324 for (ch = *str, str2 = ident;
1325 (str2 < ident + sizeof (ident) - 1
1326 && (isalnum (ch) || ch == '@'));
1329 *str2++ = (islower (ch)) ? ch : tolower (ch);
1336 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
1337 if (ch == ptr->string[0]
1338 && len == ptr->length
1339 && memcmp (ident, ptr->string, ptr->length) == 0)
1341 if (exp_p->X_add_number != 0
1342 && (ptr->reloc == BFD_RELOC_16_GOTOFF
1343 || ptr->reloc == BFD_RELOC_LO16_GOTOFF
1344 || ptr->reloc == BFD_RELOC_HI16_GOTOFF
1345 || ptr->reloc == BFD_RELOC_HI16_S_GOTOFF))
1346 as_warn (_("identifier+constant@got means identifier@got+constant"));
1348 /* Now check for identifier@suffix+constant */
1349 if (*str == '-' || *str == '+')
1351 char *orig_line = input_line_pointer;
1352 expressionS new_exp;
1354 input_line_pointer = str;
1355 expression (&new_exp);
1356 if (new_exp.X_op == O_constant)
1358 exp_p->X_add_number += new_exp.X_add_number;
1359 str = input_line_pointer;
1362 if (&input_line_pointer != str_p)
1363 input_line_pointer = orig_line;
1370 return BFD_RELOC_UNUSED;
1373 /* Like normal .long/.short/.word, except support @got, etc. */
1374 /* clobbers input_line_pointer, checks */
1377 ppc_elf_cons (nbytes)
1378 register int nbytes; /* 1=.byte, 2=.word, 4=.long */
1381 bfd_reloc_code_real_type reloc;
1383 if (is_it_end_of_statement ())
1385 demand_empty_rest_of_line ();
1392 if (exp.X_op == O_symbol
1393 && *input_line_pointer == '@'
1394 && (reloc = ppc_elf_suffix (&input_line_pointer, &exp)) != BFD_RELOC_UNUSED)
1396 reloc_howto_type *reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
1397 int size = bfd_get_reloc_size (reloc_howto);
1400 as_bad (_("%s relocations do not fit in %d bytes\n"), reloc_howto->name, nbytes);
1404 register char *p = frag_more ((int) nbytes);
1405 int offset = nbytes - size;
1407 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size, &exp, 0, reloc);
1411 emit_expr (&exp, (unsigned int) nbytes);
1413 while (*input_line_pointer++ == ',');
1415 input_line_pointer--; /* Put terminator back into stream. */
1416 demand_empty_rest_of_line ();
1419 /* Solaris pseduo op to change to the .rodata section. */
1424 char *save_line = input_line_pointer;
1425 static char section[] = ".rodata\n";
1427 /* Just pretend this is .section .rodata */
1428 input_line_pointer = section;
1429 obj_elf_section (xxx);
1431 input_line_pointer = save_line;
1434 /* Pseudo op to make file scope bss items */
1437 int xxx ATTRIBUTE_UNUSED;
1439 register char *name;
1443 register symbolS *symbolP;
1450 name = input_line_pointer;
1451 c = get_symbol_end ();
1453 /* just after name is now '\0' */
1454 p = input_line_pointer;
1457 if (*input_line_pointer != ',')
1459 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1460 ignore_rest_of_line ();
1464 input_line_pointer++; /* skip ',' */
1465 if ((size = get_absolute_expression ()) < 0)
1467 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
1468 ignore_rest_of_line ();
1472 /* The third argument to .lcomm is the alignment. */
1473 if (*input_line_pointer != ',')
1477 ++input_line_pointer;
1478 align = get_absolute_expression ();
1481 as_warn (_("ignoring bad alignment"));
1487 symbolP = symbol_find_or_make (name);
1490 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
1492 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1493 S_GET_NAME (symbolP));
1494 ignore_rest_of_line ();
1498 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
1500 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1501 S_GET_NAME (symbolP),
1502 (long) S_GET_VALUE (symbolP),
1505 ignore_rest_of_line ();
1511 old_subsec = now_subseg;
1514 /* convert to a power of 2 alignment */
1515 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
1518 as_bad (_("Common alignment not a power of 2"));
1519 ignore_rest_of_line ();
1526 record_alignment (bss_section, align2);
1527 subseg_set (bss_section, 0);
1529 frag_align (align2, 0, 0);
1530 if (S_GET_SEGMENT (symbolP) == bss_section)
1531 symbol_get_frag (symbolP)->fr_symbol = 0;
1532 symbol_set_frag (symbolP, frag_now);
1533 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
1536 S_SET_SIZE (symbolP, size);
1537 S_SET_SEGMENT (symbolP, bss_section);
1538 subseg_set (old_sec, old_subsec);
1539 demand_empty_rest_of_line ();
1542 /* Validate any relocations emitted for -mrelocatable, possibly adding
1543 fixups for word relocations in writable segments, so we can adjust
1546 ppc_elf_validate_fix (fixp, seg)
1550 if (fixp->fx_done || fixp->fx_pcrel)
1559 case SHLIB_MRELOCATABLE:
1560 if (fixp->fx_r_type <= BFD_RELOC_UNUSED
1561 && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
1562 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
1563 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
1564 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
1565 && fixp->fx_r_type != BFD_RELOC_32_BASEREL
1566 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
1567 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
1568 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
1569 && strcmp (segment_name (seg), ".got2") != 0
1570 && strcmp (segment_name (seg), ".dtors") != 0
1571 && strcmp (segment_name (seg), ".ctors") != 0
1572 && strcmp (segment_name (seg), ".fixup") != 0
1573 && strcmp (segment_name (seg), ".stab") != 0
1574 && strcmp (segment_name (seg), ".gcc_except_table") != 0
1575 && strcmp (segment_name (seg), ".eh_frame") != 0
1576 && strcmp (segment_name (seg), ".ex_shared") != 0)
1578 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
1579 || fixp->fx_r_type != BFD_RELOC_CTOR)
1581 as_bad_where (fixp->fx_file, fixp->fx_line,
1582 _("Relocation cannot be done when using -mrelocatable"));
1588 #endif /* OBJ_ELF */
1593 * Summary of parse_toc_entry().
1595 * in: Input_line_pointer points to the '[' in one of:
1597 * [toc] [tocv] [toc32] [toc64]
1599 * Anything else is an error of one kind or another.
1602 * return value: success or failure
1603 * toc_kind: kind of toc reference
1604 * input_line_pointer:
1605 * success: first char after the ']'
1606 * failure: unchanged
1610 * [toc] - rv == success, toc_kind = default_toc
1611 * [tocv] - rv == success, toc_kind = data_in_toc
1612 * [toc32] - rv == success, toc_kind = must_be_32
1613 * [toc64] - rv == success, toc_kind = must_be_64
1617 enum toc_size_qualifier
1619 default_toc, /* The toc cell constructed should be the system default size */
1620 data_in_toc, /* This is a direct reference to a toc cell */
1621 must_be_32, /* The toc cell constructed must be 32 bits wide */
1622 must_be_64 /* The toc cell constructed must be 64 bits wide */
1626 parse_toc_entry(toc_kind)
1627 enum toc_size_qualifier *toc_kind;
1632 enum toc_size_qualifier t;
1634 /* save the input_line_pointer */
1635 start = input_line_pointer;
1637 /* skip over the '[' , and whitespace */
1638 ++input_line_pointer;
1641 /* find the spelling of the operand */
1642 toc_spec = input_line_pointer;
1643 c = get_symbol_end ();
1645 if (strcmp(toc_spec, "toc") == 0)
1649 else if (strcmp(toc_spec, "tocv") == 0)
1653 else if (strcmp(toc_spec, "toc32") == 0)
1657 else if (strcmp(toc_spec, "toc64") == 0)
1663 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
1664 *input_line_pointer = c; /* put back the delimiting char */
1665 input_line_pointer = start; /* reset input_line pointer */
1669 /* now find the ']' */
1670 *input_line_pointer = c; /* put back the delimiting char */
1672 SKIP_WHITESPACE (); /* leading whitespace could be there. */
1673 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
1677 as_bad (_("syntax error: expected `]', found `%c'"), c);
1678 input_line_pointer = start; /* reset input_line pointer */
1682 *toc_kind = t; /* set return value */
1688 /* We need to keep a list of fixups. We can't simply generate them as
1689 we go, because that would require us to first create the frag, and
1690 that would screw up references to ``.''. */
1696 bfd_reloc_code_real_type reloc;
1699 #define MAX_INSN_FIXUPS (5)
1701 /* This routine is called for each instruction to be assembled. */
1708 const struct powerpc_opcode *opcode;
1710 const unsigned char *opindex_ptr;
1714 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
1719 bfd_reloc_code_real_type reloc;
1722 /* Get the opcode. */
1723 for (s = str; *s != '\0' && ! isspace (*s); s++)
1728 /* Look up the opcode in the hash table. */
1729 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
1730 if (opcode == (const struct powerpc_opcode *) NULL)
1732 const struct powerpc_macro *macro;
1734 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
1735 if (macro == (const struct powerpc_macro *) NULL)
1736 as_bad (_("Unrecognized opcode: `%s'"), str);
1738 ppc_macro (s, macro);
1743 insn = opcode->opcode;
1746 while (isspace (*str))
1749 /* PowerPC operands are just expressions. The only real issue is
1750 that a few operand types are optional. All cases which might use
1751 an optional operand separate the operands only with commas (in
1752 some cases parentheses are used, as in ``lwz 1,0(1)'' but such
1753 cases never have optional operands). There is never more than
1754 one optional operand for an instruction. So, before we start
1755 seriously parsing the operands, we check to see if we have an
1756 optional operand, and, if we do, we count the number of commas to
1757 see whether the operand should be omitted. */
1759 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
1761 const struct powerpc_operand *operand;
1763 operand = &powerpc_operands[*opindex_ptr];
1764 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
1766 unsigned int opcount;
1768 /* There is an optional operand. Count the number of
1769 commas in the input line. */
1776 while ((s = strchr (s, ',')) != (char *) NULL)
1783 /* If there are fewer operands in the line then are called
1784 for by the instruction, we want to skip the optional
1786 if (opcount < strlen (opcode->operands))
1793 /* Gather the operands. */
1797 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
1799 const struct powerpc_operand *operand;
1805 if (next_opindex == 0)
1806 operand = &powerpc_operands[*opindex_ptr];
1809 operand = &powerpc_operands[next_opindex];
1815 /* If this is a fake operand, then we do not expect anything
1817 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
1819 insn = (*operand->insert) (insn, 0L, &errmsg);
1820 if (errmsg != (const char *) NULL)
1825 /* If this is an optional operand, and we are skipping it, just
1827 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
1830 if (operand->insert)
1832 insn = (*operand->insert) (insn, 0L, &errmsg);
1833 if (errmsg != (const char *) NULL)
1836 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
1837 next_opindex = *opindex_ptr + 1;
1841 /* Gather the operand. */
1842 hold = input_line_pointer;
1843 input_line_pointer = str;
1846 if (*input_line_pointer == '[')
1848 /* We are expecting something like the second argument here:
1850 lwz r4,[toc].GS.0.static_int(rtoc)
1851 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
1852 The argument following the `]' must be a symbol name, and the
1853 register must be the toc register: 'rtoc' or '2'
1855 The effect is to 0 as the displacement field
1856 in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
1857 the appropriate variation) reloc against it based on the symbol.
1858 The linker will build the toc, and insert the resolved toc offset.
1861 o The size of the toc entry is currently assumed to be
1862 32 bits. This should not be assumed to be a hard coded
1864 o In an effort to cope with a change from 32 to 64 bits,
1865 there are also toc entries that are specified to be
1866 either 32 or 64 bits:
1867 lwz r4,[toc32].GS.0.static_int(rtoc)
1868 lwz r4,[toc64].GS.0.static_int(rtoc)
1869 These demand toc entries of the specified size, and the
1870 instruction probably requires it.
1874 enum toc_size_qualifier toc_kind;
1875 bfd_reloc_code_real_type toc_reloc;
1877 /* go parse off the [tocXX] part */
1878 valid_toc = parse_toc_entry(&toc_kind);
1882 /* Note: message has already been issued. */
1883 /* FIXME: what sort of recovery should we do? */
1884 /* demand_rest_of_line(); return; ? */
1887 /* Now get the symbol following the ']' */
1893 /* In this case, we may not have seen the symbol yet, since */
1894 /* it is allowed to appear on a .extern or .globl or just be */
1895 /* a label in the .data section. */
1896 toc_reloc = BFD_RELOC_PPC_TOC16;
1899 /* 1. The symbol must be defined and either in the toc */
1900 /* section, or a global. */
1901 /* 2. The reloc generated must have the TOCDEFN flag set in */
1902 /* upper bit mess of the reloc type. */
1903 /* FIXME: It's a little confusing what the tocv qualifier can */
1904 /* be used for. At the very least, I've seen three */
1905 /* uses, only one of which I'm sure I can explain. */
1906 if (ex.X_op == O_symbol)
1908 assert (ex.X_add_symbol != NULL);
1909 if (symbol_get_bfdsym (ex.X_add_symbol)->section
1912 as_bad(_("[tocv] symbol is not a toc symbol"));
1916 toc_reloc = BFD_RELOC_PPC_TOC16;
1919 /* FIXME: these next two specifically specify 32/64 bit toc */
1920 /* entries. We don't support them today. Is this the */
1921 /* right way to say that? */
1922 toc_reloc = BFD_RELOC_UNUSED;
1923 as_bad (_("Unimplemented toc32 expression modifier"));
1926 /* FIXME: see above */
1927 toc_reloc = BFD_RELOC_UNUSED;
1928 as_bad (_("Unimplemented toc64 expression modifier"));
1932 _("Unexpected return value [%d] from parse_toc_entry!\n"),
1938 /* We need to generate a fixup for this expression. */
1939 if (fc >= MAX_INSN_FIXUPS)
1940 as_fatal (_("too many fixups"));
1942 fixups[fc].reloc = toc_reloc;
1943 fixups[fc].exp = ex;
1944 fixups[fc].opindex = *opindex_ptr;
1947 /* Ok. We've set up the fixup for the instruction. Now make it
1948 look like the constant 0 was found here */
1950 ex.X_op = O_constant;
1951 ex.X_add_number = 0;
1952 ex.X_add_symbol = NULL;
1953 ex.X_op_symbol = NULL;
1959 if (! register_name (&ex))
1961 if ((operand->flags & PPC_OPERAND_CR) != 0)
1968 str = input_line_pointer;
1969 input_line_pointer = hold;
1971 if (ex.X_op == O_illegal)
1972 as_bad (_("illegal operand"));
1973 else if (ex.X_op == O_absent)
1974 as_bad (_("missing operand"));
1975 else if (ex.X_op == O_register)
1977 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
1980 else if (ex.X_op == O_constant)
1983 /* Allow @HA, @L, @H on constants. */
1984 char *orig_str = str;
1986 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
1993 case BFD_RELOC_LO16:
1994 /* X_unsigned is the default, so if the user has done
1995 something which cleared it, we always produce a
1998 && (operand->flags & PPC_OPERAND_SIGNED) == 0)
1999 ex.X_add_number &= 0xffff;
2001 ex.X_add_number = (((ex.X_add_number & 0xffff)
2006 case BFD_RELOC_HI16:
2007 ex.X_add_number = (ex.X_add_number >> 16) & 0xffff;
2010 case BFD_RELOC_HI16_S:
2011 ex.X_add_number = ((((ex.X_add_number >> 16) & 0xffff)
2012 + ((ex.X_add_number >> 15) & 1))
2017 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2021 else if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2023 /* For the absoulte forms of branchs, convert the PC relative form back into
2025 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
2029 case BFD_RELOC_PPC_B26:
2030 reloc = BFD_RELOC_PPC_BA26;
2032 case BFD_RELOC_PPC_B16:
2033 reloc = BFD_RELOC_PPC_BA16;
2035 case BFD_RELOC_PPC_B16_BRTAKEN:
2036 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
2038 case BFD_RELOC_PPC_B16_BRNTAKEN:
2039 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
2046 /* We need to generate a fixup for this expression. */
2047 if (fc >= MAX_INSN_FIXUPS)
2048 as_fatal (_("too many fixups"));
2049 fixups[fc].exp = ex;
2050 fixups[fc].opindex = 0;
2051 fixups[fc].reloc = reloc;
2054 #endif /* OBJ_ELF */
2058 /* We need to generate a fixup for this expression. */
2059 if (fc >= MAX_INSN_FIXUPS)
2060 as_fatal (_("too many fixups"));
2061 fixups[fc].exp = ex;
2062 fixups[fc].opindex = *opindex_ptr;
2063 fixups[fc].reloc = BFD_RELOC_UNUSED;
2072 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
2080 /* The call to expression should have advanced str past any
2083 && (endc != ',' || *str != '\0'))
2085 as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc);
2093 while (isspace (*str))
2097 as_bad (_("junk at end of line: `%s'"), str);
2099 /* Write out the instruction. */
2101 md_number_to_chars (f, insn, 4);
2104 dwarf2_emit_insn (4);
2107 /* Create any fixups. At this point we do not use a
2108 bfd_reloc_code_real_type, but instead just use the
2109 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2110 handle fixups for any operand type, although that is admittedly
2111 not a very exciting feature. We pick a BFD reloc type in
2113 for (i = 0; i < fc; i++)
2115 const struct powerpc_operand *operand;
2117 operand = &powerpc_operands[fixups[i].opindex];
2118 if (fixups[i].reloc != BFD_RELOC_UNUSED)
2120 reloc_howto_type *reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
2128 size = bfd_get_reloc_size (reloc_howto);
2129 offset = target_big_endian ? (4 - size) : 0;
2131 if (size < 1 || size > 4)
2134 fixP = fix_new_exp (frag_now, f - frag_now->fr_literal + offset, size,
2135 &fixups[i].exp, reloc_howto->pc_relative,
2138 /* Turn off complaints that the addend is too large for things like
2140 switch (fixups[i].reloc)
2142 case BFD_RELOC_16_GOTOFF:
2143 case BFD_RELOC_PPC_TOC16:
2144 case BFD_RELOC_LO16:
2145 case BFD_RELOC_HI16:
2146 case BFD_RELOC_HI16_S:
2147 fixP->fx_no_overflow = 1;
2154 fix_new_exp (frag_now, f - frag_now->fr_literal, 4,
2156 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
2157 ((bfd_reloc_code_real_type)
2158 (fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
2162 /* Handle a macro. Gather all the operands, transform them as
2163 described by the macro, and call md_assemble recursively. All the
2164 operands are separated by commas; we don't accept parentheses
2165 around operands here. */
2168 ppc_macro (str, macro)
2170 const struct powerpc_macro *macro;
2181 /* Gather the users operands into the operands array. */
2186 if (count >= sizeof operands / sizeof operands[0])
2188 operands[count++] = s;
2189 s = strchr (s, ',');
2190 if (s == (char *) NULL)
2195 if (count != macro->operands)
2197 as_bad (_("wrong number of operands"));
2201 /* Work out how large the string must be (the size is unbounded
2202 because it includes user input). */
2204 format = macro->format;
2205 while (*format != '\0')
2214 arg = strtol (format + 1, &send, 10);
2215 know (send != format && arg >= 0 && arg < count);
2216 len += strlen (operands[arg]);
2221 /* Put the string together. */
2222 complete = s = (char *) alloca (len + 1);
2223 format = macro->format;
2224 while (*format != '\0')
2230 arg = strtol (format + 1, &send, 10);
2231 strcpy (s, operands[arg]);
2238 /* Assemble the constructed instruction. */
2239 md_assemble (complete);
2243 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED */
2246 ppc_section_letter (letter, ptr_msg)
2253 *ptr_msg = _("Bad .section directive: want a,w,x,e in string");
2258 ppc_section_word (str, len)
2262 if (len == 7 && strncmp (str, "exclude", 7) == 0)
2269 ppc_section_type (str, len)
2273 if (len == 7 && strncmp (str, "ordered", 7) == 0)
2280 ppc_section_flags (flags, attr, type)
2285 if (type == SHT_ORDERED)
2286 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
2288 if (attr & SHF_EXCLUDE)
2289 flags |= SEC_EXCLUDE;
2293 #endif /* OBJ_ELF */
2296 /* Pseudo-op handling. */
2298 /* The .byte pseudo-op. This is similar to the normal .byte
2299 pseudo-op, but it can also take a single ASCII string. */
2303 int ignore ATTRIBUTE_UNUSED;
2305 if (*input_line_pointer != '\"')
2311 /* Gather characters. A real double quote is doubled. Unusual
2312 characters are not permitted. */
2313 ++input_line_pointer;
2318 c = *input_line_pointer++;
2322 if (*input_line_pointer != '\"')
2324 ++input_line_pointer;
2327 FRAG_APPEND_1_CHAR (c);
2330 demand_empty_rest_of_line ();
2335 /* XCOFF specific pseudo-op handling. */
2337 /* This is set if we are creating a .stabx symbol, since we don't want
2338 to handle symbol suffixes for such symbols. */
2339 static boolean ppc_stab_symbol;
2341 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2342 symbols in the .bss segment as though they were local common
2343 symbols, and uses a different smclas. */
2349 asection *current_seg = now_seg;
2350 subsegT current_subseg = now_subseg;
2356 symbolS *lcomm_sym = NULL;
2360 name = input_line_pointer;
2361 endc = get_symbol_end ();
2362 end_name = input_line_pointer;
2365 if (*input_line_pointer != ',')
2367 as_bad (_("missing size"));
2368 ignore_rest_of_line ();
2371 ++input_line_pointer;
2373 size = get_absolute_expression ();
2376 as_bad (_("negative size"));
2377 ignore_rest_of_line ();
2383 /* The third argument to .comm is the alignment. */
2384 if (*input_line_pointer != ',')
2388 ++input_line_pointer;
2389 align = get_absolute_expression ();
2392 as_warn (_("ignoring bad alignment"));
2411 /* The third argument to .lcomm appears to be the real local
2412 common symbol to create. References to the symbol named in
2413 the first argument are turned into references to the third
2415 if (*input_line_pointer != ',')
2417 as_bad (_("missing real symbol name"));
2418 ignore_rest_of_line ();
2421 ++input_line_pointer;
2423 lcomm_name = input_line_pointer;
2424 lcomm_endc = get_symbol_end ();
2426 lcomm_sym = symbol_find_or_make (lcomm_name);
2428 *input_line_pointer = lcomm_endc;
2432 sym = symbol_find_or_make (name);
2435 if (S_IS_DEFINED (sym)
2436 || S_GET_VALUE (sym) != 0)
2438 as_bad (_("attempt to redefine symbol"));
2439 ignore_rest_of_line ();
2443 record_alignment (bss_section, align);
2446 || ! S_IS_DEFINED (lcomm_sym))
2455 S_SET_EXTERNAL (sym);
2459 symbol_get_tc (lcomm_sym)->output = 1;
2460 def_sym = lcomm_sym;
2464 subseg_set (bss_section, 1);
2465 frag_align (align, 0, 0);
2467 symbol_set_frag (def_sym, frag_now);
2468 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
2469 def_size, (char *) NULL);
2471 S_SET_SEGMENT (def_sym, bss_section);
2472 symbol_get_tc (def_sym)->align = align;
2476 /* Align the size of lcomm_sym. */
2477 symbol_get_frag (lcomm_sym)->fr_offset =
2478 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
2479 &~ ((1 << align) - 1));
2480 if (align > symbol_get_tc (lcomm_sym)->align)
2481 symbol_get_tc (lcomm_sym)->align = align;
2486 /* Make sym an offset from lcomm_sym. */
2487 S_SET_SEGMENT (sym, bss_section);
2488 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
2489 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
2490 symbol_get_frag (lcomm_sym)->fr_offset += size;
2493 subseg_set (current_seg, current_subseg);
2495 demand_empty_rest_of_line ();
2498 /* The .csect pseudo-op. This switches us into a different
2499 subsegment. The first argument is a symbol whose value is the
2500 start of the .csect. In COFF, csect symbols get special aux
2501 entries defined by the x_csect field of union internal_auxent. The
2502 optional second argument is the alignment (the default is 2). */
2506 int ignore ATTRIBUTE_UNUSED;
2512 name = input_line_pointer;
2513 endc = get_symbol_end ();
2515 sym = symbol_find_or_make (name);
2517 *input_line_pointer = endc;
2519 if (S_GET_NAME (sym)[0] == '\0')
2521 /* An unnamed csect is assumed to be [PR]. */
2522 symbol_get_tc (sym)->class = XMC_PR;
2525 ppc_change_csect (sym);
2527 if (*input_line_pointer == ',')
2529 ++input_line_pointer;
2530 symbol_get_tc (sym)->align = get_absolute_expression ();
2533 demand_empty_rest_of_line ();
2536 /* Change to a different csect. */
2539 ppc_change_csect (sym)
2542 if (S_IS_DEFINED (sym))
2543 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
2551 /* This is a new csect. We need to look at the symbol class to
2552 figure out whether it should go in the text section or the
2555 switch (symbol_get_tc (sym)->class)
2565 S_SET_SEGMENT (sym, text_section);
2566 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
2567 ++ppc_text_subsegment;
2568 list_ptr = &ppc_text_csects;
2577 if (ppc_toc_csect != NULL
2578 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
2579 == ppc_data_subsegment))
2581 S_SET_SEGMENT (sym, data_section);
2582 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
2583 ++ppc_data_subsegment;
2584 list_ptr = &ppc_data_csects;
2590 /* We set the obstack chunk size to a small value before
2591 changing subsegments, so that we don't use a lot of memory
2592 space for what may be a small section. */
2593 hold_chunksize = chunksize;
2596 subseg_new (segment_name (S_GET_SEGMENT (sym)),
2597 symbol_get_tc (sym)->subseg);
2599 chunksize = hold_chunksize;
2602 ppc_after_toc_frag = frag_now;
2604 symbol_set_frag (sym, frag_now);
2605 S_SET_VALUE (sym, (valueT) frag_now_fix ());
2607 symbol_get_tc (sym)->align = (ppc_xcoff64) ? 3 : 2;
2608 symbol_get_tc (sym)->output = 1;
2609 symbol_get_tc (sym)->within = sym;
2611 for (list = *list_ptr;
2612 symbol_get_tc (list)->next != (symbolS *) NULL;
2613 list = symbol_get_tc (list)->next)
2615 symbol_get_tc (list)->next = sym;
2617 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
2618 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
2622 ppc_current_csect = sym;
2625 /* This function handles the .text and .data pseudo-ops. These
2626 pseudo-ops aren't really used by XCOFF; we implement them for the
2627 convenience of people who aren't used to XCOFF. */
2638 else if (type == 'd')
2643 sym = symbol_find_or_make (name);
2645 ppc_change_csect (sym);
2647 demand_empty_rest_of_line ();
2650 /* This function handles the .section pseudo-op. This is mostly to
2651 give an error, since XCOFF only supports .text, .data and .bss, but
2652 we do permit the user to name the text or data section. */
2655 ppc_named_section (ignore)
2656 int ignore ATTRIBUTE_UNUSED;
2659 const char *real_name;
2663 user_name = input_line_pointer;
2664 c = get_symbol_end ();
2666 if (strcmp (user_name, ".text") == 0)
2667 real_name = ".text[PR]";
2668 else if (strcmp (user_name, ".data") == 0)
2669 real_name = ".data[RW]";
2672 as_bad (_("The XCOFF file format does not support arbitrary sections"));
2673 *input_line_pointer = c;
2674 ignore_rest_of_line ();
2678 *input_line_pointer = c;
2680 sym = symbol_find_or_make (real_name);
2682 ppc_change_csect (sym);
2684 demand_empty_rest_of_line ();
2687 /* The .extern pseudo-op. We create an undefined symbol. */
2691 int ignore ATTRIBUTE_UNUSED;
2696 name = input_line_pointer;
2697 endc = get_symbol_end ();
2699 (void) symbol_find_or_make (name);
2701 *input_line_pointer = endc;
2703 demand_empty_rest_of_line ();
2706 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
2710 int ignore ATTRIBUTE_UNUSED;
2716 name = input_line_pointer;
2717 endc = get_symbol_end ();
2719 sym = symbol_find_or_make (name);
2721 *input_line_pointer = endc;
2723 symbol_get_tc (sym)->output = 1;
2725 demand_empty_rest_of_line ();
2728 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
2729 although I don't know why it bothers. */
2733 int ignore ATTRIBUTE_UNUSED;
2740 name = input_line_pointer;
2741 endc = get_symbol_end ();
2743 sym = symbol_find_or_make (name);
2745 *input_line_pointer = endc;
2747 if (*input_line_pointer != ',')
2749 as_bad (_("missing rename string"));
2750 ignore_rest_of_line ();
2753 ++input_line_pointer;
2755 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
2757 demand_empty_rest_of_line ();
2760 /* The .stabx pseudo-op. This is similar to a normal .stabs
2761 pseudo-op, but slightly different. A sample is
2762 .stabx "main:F-1",.main,142,0
2763 The first argument is the symbol name to create. The second is the
2764 value, and the third is the storage class. The fourth seems to be
2765 always zero, and I am assuming it is the type. */
2769 int ignore ATTRIBUTE_UNUSED;
2776 name = demand_copy_C_string (&len);
2778 if (*input_line_pointer != ',')
2780 as_bad (_("missing value"));
2783 ++input_line_pointer;
2785 ppc_stab_symbol = true;
2786 sym = symbol_make (name);
2787 ppc_stab_symbol = false;
2789 symbol_get_tc (sym)->real_name = name;
2791 (void) expression (&exp);
2798 as_bad (_("illegal .stabx expression; zero assumed"));
2799 exp.X_add_number = 0;
2802 S_SET_VALUE (sym, (valueT) exp.X_add_number);
2803 symbol_set_frag (sym, &zero_address_frag);
2807 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
2808 symbol_set_value_expression (sym, &exp);
2812 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
2813 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
2818 /* The value is some complex expression. This will probably
2819 fail at some later point, but this is probably the right
2820 thing to do here. */
2821 symbol_set_value_expression (sym, &exp);
2825 S_SET_SEGMENT (sym, ppc_coff_debug_section);
2826 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
2828 if (*input_line_pointer != ',')
2830 as_bad (_("missing class"));
2833 ++input_line_pointer;
2835 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
2837 if (*input_line_pointer != ',')
2839 as_bad (_("missing type"));
2842 ++input_line_pointer;
2844 S_SET_DATA_TYPE (sym, get_absolute_expression ());
2846 symbol_get_tc (sym)->output = 1;
2848 if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
2849 symbol_get_tc (sym)->within = ppc_current_block;
2851 if (exp.X_op != O_symbol
2852 || ! S_IS_EXTERNAL (exp.X_add_symbol)
2853 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
2854 ppc_frob_label (sym);
2857 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
2858 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
2859 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
2860 symbol_get_tc (ppc_current_csect)->within = sym;
2863 demand_empty_rest_of_line ();
2866 /* The .function pseudo-op. This takes several arguments. The first
2867 argument seems to be the external name of the symbol. The second
2868 argment seems to be the label for the start of the function. gcc
2869 uses the same name for both. I have no idea what the third and
2870 fourth arguments are meant to be. The optional fifth argument is
2871 an expression for the size of the function. In COFF this symbol
2872 gets an aux entry like that used for a csect. */
2875 ppc_function (ignore)
2876 int ignore ATTRIBUTE_UNUSED;
2884 name = input_line_pointer;
2885 endc = get_symbol_end ();
2887 /* Ignore any [PR] suffix. */
2888 name = ppc_canonicalize_symbol_name (name);
2889 s = strchr (name, '[');
2890 if (s != (char *) NULL
2891 && strcmp (s + 1, "PR]") == 0)
2894 ext_sym = symbol_find_or_make (name);
2896 *input_line_pointer = endc;
2898 if (*input_line_pointer != ',')
2900 as_bad (_("missing symbol name"));
2901 ignore_rest_of_line ();
2904 ++input_line_pointer;
2906 name = input_line_pointer;
2907 endc = get_symbol_end ();
2909 lab_sym = symbol_find_or_make (name);
2911 *input_line_pointer = endc;
2913 if (ext_sym != lab_sym)
2917 exp.X_op = O_symbol;
2918 exp.X_add_symbol = lab_sym;
2919 exp.X_op_symbol = NULL;
2920 exp.X_add_number = 0;
2922 symbol_set_value_expression (ext_sym, &exp);
2925 if (symbol_get_tc (ext_sym)->class == -1)
2926 symbol_get_tc (ext_sym)->class = XMC_PR;
2927 symbol_get_tc (ext_sym)->output = 1;
2929 if (*input_line_pointer == ',')
2933 /* Ignore the third argument. */
2934 ++input_line_pointer;
2935 expression (&ignore);
2936 if (*input_line_pointer == ',')
2938 /* Ignore the fourth argument. */
2939 ++input_line_pointer;
2940 expression (&ignore);
2941 if (*input_line_pointer == ',')
2943 /* The fifth argument is the function size. */
2944 ++input_line_pointer;
2945 symbol_get_tc (ext_sym)->size = symbol_new ("L0\001",
2948 &zero_address_frag);
2949 pseudo_set (symbol_get_tc (ext_sym)->size);
2954 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
2955 SF_SET_FUNCTION (ext_sym);
2956 SF_SET_PROCESS (ext_sym);
2957 coff_add_linesym (ext_sym);
2959 demand_empty_rest_of_line ();
2962 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
2967 int ignore ATTRIBUTE_UNUSED;
2971 sym = symbol_make (".bf");
2972 S_SET_SEGMENT (sym, text_section);
2973 symbol_set_frag (sym, frag_now);
2974 S_SET_VALUE (sym, frag_now_fix ());
2975 S_SET_STORAGE_CLASS (sym, C_FCN);
2977 coff_line_base = get_absolute_expression ();
2979 S_SET_NUMBER_AUXILIARY (sym, 1);
2980 SA_SET_SYM_LNNO (sym, coff_line_base);
2982 symbol_get_tc (sym)->output = 1;
2984 ppc_frob_label (sym);
2986 demand_empty_rest_of_line ();
2989 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
2990 ".ef", except that the line number is absolute, not relative to the
2991 most recent ".bf" symbol. */
2995 int ignore ATTRIBUTE_UNUSED;
2999 sym = symbol_make (".ef");
3000 S_SET_SEGMENT (sym, text_section);
3001 symbol_set_frag (sym, frag_now);
3002 S_SET_VALUE (sym, frag_now_fix ());
3003 S_SET_STORAGE_CLASS (sym, C_FCN);
3004 S_SET_NUMBER_AUXILIARY (sym, 1);
3005 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3006 symbol_get_tc (sym)->output = 1;
3008 ppc_frob_label (sym);
3010 demand_empty_rest_of_line ();
3013 /* The .bi and .ei pseudo-ops. These take a string argument and
3014 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3021 static symbolS *last_biei;
3028 name = demand_copy_C_string (&len);
3030 /* The value of these symbols is actually file offset. Here we set
3031 the value to the index into the line number entries. In
3032 ppc_frob_symbols we set the fix_line field, which will cause BFD
3033 to do the right thing. */
3035 sym = symbol_make (name);
3036 /* obj-coff.c currently only handles line numbers correctly in the
3038 S_SET_SEGMENT (sym, text_section);
3039 S_SET_VALUE (sym, coff_n_line_nos);
3040 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3042 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
3043 symbol_get_tc (sym)->output = 1;
3045 for (look = last_biei ? last_biei : symbol_rootP;
3046 (look != (symbolS *) NULL
3047 && (S_GET_STORAGE_CLASS (look) == C_FILE
3048 || S_GET_STORAGE_CLASS (look) == C_BINCL
3049 || S_GET_STORAGE_CLASS (look) == C_EINCL));
3050 look = symbol_next (look))
3052 if (look != (symbolS *) NULL)
3054 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3055 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
3059 demand_empty_rest_of_line ();
3062 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3063 There is one argument, which is a csect symbol. The value of the
3064 .bs symbol is the index of this csect symbol. */
3068 int ignore ATTRIBUTE_UNUSED;
3075 if (ppc_current_block != NULL)
3076 as_bad (_("nested .bs blocks"));
3078 name = input_line_pointer;
3079 endc = get_symbol_end ();
3081 csect = symbol_find_or_make (name);
3083 *input_line_pointer = endc;
3085 sym = symbol_make (".bs");
3086 S_SET_SEGMENT (sym, now_seg);
3087 S_SET_STORAGE_CLASS (sym, C_BSTAT);
3088 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3089 symbol_get_tc (sym)->output = 1;
3091 symbol_get_tc (sym)->within = csect;
3093 ppc_frob_label (sym);
3095 ppc_current_block = sym;
3097 demand_empty_rest_of_line ();
3100 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3104 int ignore ATTRIBUTE_UNUSED;
3108 if (ppc_current_block == NULL)
3109 as_bad (_(".es without preceding .bs"));
3111 sym = symbol_make (".es");
3112 S_SET_SEGMENT (sym, now_seg);
3113 S_SET_STORAGE_CLASS (sym, C_ESTAT);
3114 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3115 symbol_get_tc (sym)->output = 1;
3117 ppc_frob_label (sym);
3119 ppc_current_block = NULL;
3121 demand_empty_rest_of_line ();
3124 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3129 int ignore ATTRIBUTE_UNUSED;
3133 sym = symbol_make (".bb");
3134 S_SET_SEGMENT (sym, text_section);
3135 symbol_set_frag (sym, frag_now);
3136 S_SET_VALUE (sym, frag_now_fix ());
3137 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3139 S_SET_NUMBER_AUXILIARY (sym, 1);
3140 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3142 symbol_get_tc (sym)->output = 1;
3144 SF_SET_PROCESS (sym);
3146 ppc_frob_label (sym);
3148 demand_empty_rest_of_line ();
3151 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3156 int ignore ATTRIBUTE_UNUSED;
3160 sym = symbol_make (".eb");
3161 S_SET_SEGMENT (sym, text_section);
3162 symbol_set_frag (sym, frag_now);
3163 S_SET_VALUE (sym, frag_now_fix ());
3164 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3165 S_SET_NUMBER_AUXILIARY (sym, 1);
3166 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3167 symbol_get_tc (sym)->output = 1;
3169 SF_SET_PROCESS (sym);
3171 ppc_frob_label (sym);
3173 demand_empty_rest_of_line ();
3176 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3181 int ignore ATTRIBUTE_UNUSED;
3187 name = demand_copy_C_string (&len);
3188 sym = symbol_make (name);
3189 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3190 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3191 S_SET_STORAGE_CLASS (sym, C_BCOMM);
3192 S_SET_VALUE (sym, 0);
3193 symbol_get_tc (sym)->output = 1;
3195 ppc_frob_label (sym);
3197 demand_empty_rest_of_line ();
3200 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3204 int ignore ATTRIBUTE_UNUSED;
3208 sym = symbol_make (".ec");
3209 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3210 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3211 S_SET_STORAGE_CLASS (sym, C_ECOMM);
3212 S_SET_VALUE (sym, 0);
3213 symbol_get_tc (sym)->output = 1;
3215 ppc_frob_label (sym);
3217 demand_empty_rest_of_line ();
3220 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3224 int ignore ATTRIBUTE_UNUSED;
3226 if (ppc_toc_csect != (symbolS *) NULL)
3227 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
3234 subseg = ppc_data_subsegment;
3235 ++ppc_data_subsegment;
3237 subseg_new (segment_name (data_section), subseg);
3238 ppc_toc_frag = frag_now;
3240 sym = symbol_find_or_make ("TOC[TC0]");
3241 symbol_set_frag (sym, frag_now);
3242 S_SET_SEGMENT (sym, data_section);
3243 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3244 symbol_get_tc (sym)->subseg = subseg;
3245 symbol_get_tc (sym)->output = 1;
3246 symbol_get_tc (sym)->within = sym;
3248 ppc_toc_csect = sym;
3250 for (list = ppc_data_csects;
3251 symbol_get_tc (list)->next != (symbolS *) NULL;
3252 list = symbol_get_tc (list)->next)
3254 symbol_get_tc (list)->next = sym;
3256 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3257 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3261 ppc_current_csect = ppc_toc_csect;
3263 demand_empty_rest_of_line ();
3266 /* The AIX assembler automatically aligns the operands of a .long or
3267 .short pseudo-op, and we want to be compatible. */
3270 ppc_xcoff_cons (log_size)
3273 frag_align (log_size, 0, 0);
3274 record_alignment (now_seg, log_size);
3275 cons (1 << log_size);
3280 int dummy ATTRIBUTE_UNUSED;
3282 discard_rest_of_line();
3283 /* What does aix use this for? */
3288 int dummy ATTRIBUTE_UNUSED;
3293 (void) expression (&exp);
3295 if (exp.X_op != O_constant)
3297 as_bad (_("non-constant byte count"));
3301 byte_count = exp.X_add_number;
3303 if (*input_line_pointer != ',')
3305 as_bad (_("missing value"));
3309 ++input_line_pointer;
3313 #endif /* OBJ_XCOFF */
3315 /* The .tc pseudo-op. This is used when generating either XCOFF or
3316 ELF. This takes two or more arguments.
3318 When generating XCOFF output, the first argument is the name to
3319 give to this location in the toc; this will be a symbol with class
3320 TC. The rest of the arguments are 4 byte values to actually put at
3321 this location in the TOC; often there is just one more argument, a
3322 relocateable symbol reference.
3324 When not generating XCOFF output, the arguments are the same, but
3325 the first argument is simply ignored. */
3329 int ignore ATTRIBUTE_UNUSED;
3333 /* Define the TOC symbol name. */
3339 if (ppc_toc_csect == (symbolS *) NULL
3340 || ppc_toc_csect != ppc_current_csect)
3342 as_bad (_(".tc not in .toc section"));
3343 ignore_rest_of_line ();
3347 name = input_line_pointer;
3348 endc = get_symbol_end ();
3350 sym = symbol_find_or_make (name);
3352 *input_line_pointer = endc;
3354 if (S_IS_DEFINED (sym))
3358 label = symbol_get_tc (ppc_current_csect)->within;
3359 if (symbol_get_tc (label)->class != XMC_TC0)
3361 as_bad (_(".tc with no label"));
3362 ignore_rest_of_line ();
3366 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
3367 symbol_set_frag (label, symbol_get_frag (sym));
3368 S_SET_VALUE (label, S_GET_VALUE (sym));
3370 while (! is_end_of_line[(unsigned char) *input_line_pointer])
3371 ++input_line_pointer;
3376 S_SET_SEGMENT (sym, now_seg);
3377 symbol_set_frag (sym, frag_now);
3378 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3379 symbol_get_tc (sym)->class = XMC_TC;
3380 symbol_get_tc (sym)->output = 1;
3382 ppc_frob_label (sym);
3385 #else /* ! defined (OBJ_XCOFF) */
3387 /* Skip the TOC symbol name. */
3388 while (is_part_of_name (*input_line_pointer)
3389 || *input_line_pointer == '['
3390 || *input_line_pointer == ']'
3391 || *input_line_pointer == '{'
3392 || *input_line_pointer == '}')
3393 ++input_line_pointer;
3395 /* Align to a four byte boundary. */
3396 frag_align (2, 0, 0);
3397 record_alignment (now_seg, 2);
3399 #endif /* ! defined (OBJ_XCOFF) */
3401 if (*input_line_pointer != ',')
3402 demand_empty_rest_of_line ();
3405 ++input_line_pointer;
3406 cons ((ppc_size == PPC_OPCODE_64) ? 8 : 4);
3412 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format */
3414 /* Set the current section. */
3416 ppc_set_current_section (new)
3419 ppc_previous_section = ppc_current_section;
3420 ppc_current_section = new;
3423 /* pseudo-op: .previous
3424 behaviour: toggles the current section with the previous section.
3426 warnings: "No previous section"
3429 ppc_previous(ignore)
3430 int ignore ATTRIBUTE_UNUSED;
3434 if (ppc_previous_section == NULL)
3436 as_warn(_("No previous section to return to. Directive ignored."));
3440 subseg_set(ppc_previous_section, 0);
3442 ppc_set_current_section(ppc_previous_section);
3445 /* pseudo-op: .pdata
3446 behaviour: predefined read only data section
3450 initial: .section .pdata "adr3"
3451 a - don't know -- maybe a misprint
3452 d - initialized data
3454 3 - double word aligned (that would be 4 byte boundary)
3457 Tag index tables (also known as the function table) for exception
3458 handling, debugging, etc.
3463 int ignore ATTRIBUTE_UNUSED;
3465 if (pdata_section == 0)
3467 pdata_section = subseg_new (".pdata", 0);
3469 bfd_set_section_flags (stdoutput, pdata_section,
3470 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
3471 | SEC_READONLY | SEC_DATA ));
3473 bfd_set_section_alignment (stdoutput, pdata_section, 2);
3477 pdata_section = subseg_new(".pdata", 0);
3479 ppc_set_current_section(pdata_section);
3482 /* pseudo-op: .ydata
3483 behaviour: predefined read only data section
3487 initial: .section .ydata "drw3"
3488 a - don't know -- maybe a misprint
3489 d - initialized data
3491 3 - double word aligned (that would be 4 byte boundary)
3493 Tag tables (also known as the scope table) for exception handling,
3498 int ignore ATTRIBUTE_UNUSED;
3500 if (ydata_section == 0)
3502 ydata_section = subseg_new (".ydata", 0);
3503 bfd_set_section_flags (stdoutput, ydata_section,
3504 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
3505 | SEC_READONLY | SEC_DATA ));
3507 bfd_set_section_alignment (stdoutput, ydata_section, 3);
3511 ydata_section = subseg_new (".ydata", 0);
3513 ppc_set_current_section(ydata_section);
3516 /* pseudo-op: .reldata
3517 behaviour: predefined read write data section
3518 double word aligned (4-byte)
3519 FIXME: relocation is applied to it
3520 FIXME: what's the difference between this and .data?
3523 initial: .section .reldata "drw3"
3524 d - initialized data
3527 3 - double word aligned (that would be 8 byte boundary)
3530 Like .data, but intended to hold data subject to relocation, such as
3531 function descriptors, etc.
3535 int ignore ATTRIBUTE_UNUSED;
3537 if (reldata_section == 0)
3539 reldata_section = subseg_new (".reldata", 0);
3541 bfd_set_section_flags (stdoutput, reldata_section,
3542 ( SEC_ALLOC | SEC_LOAD | SEC_RELOC
3545 bfd_set_section_alignment (stdoutput, reldata_section, 2);
3549 reldata_section = subseg_new (".reldata", 0);
3551 ppc_set_current_section(reldata_section);
3554 /* pseudo-op: .rdata
3555 behaviour: predefined read only data section
3559 initial: .section .rdata "dr3"
3560 d - initialized data
3562 3 - double word aligned (that would be 4 byte boundary)
3566 int ignore ATTRIBUTE_UNUSED;
3568 if (rdata_section == 0)
3570 rdata_section = subseg_new (".rdata", 0);
3571 bfd_set_section_flags (stdoutput, rdata_section,
3572 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
3573 | SEC_READONLY | SEC_DATA ));
3575 bfd_set_section_alignment (stdoutput, rdata_section, 2);
3579 rdata_section = subseg_new (".rdata", 0);
3581 ppc_set_current_section(rdata_section);
3584 /* pseudo-op: .ualong
3585 behaviour: much like .int, with the exception that no alignment is
3587 FIXME: test the alignment statement
3593 int ignore ATTRIBUTE_UNUSED;
3599 /* pseudo-op: .znop <symbol name>
3600 behaviour: Issue a nop instruction
3601 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
3602 the supplied symbol name.
3604 warnings: Missing symbol name
3608 int ignore ATTRIBUTE_UNUSED;
3611 const struct powerpc_opcode *opcode;
3617 /* Strip out the symbol name */
3625 symbol_name = input_line_pointer;
3626 c = get_symbol_end ();
3628 name = xmalloc (input_line_pointer - symbol_name + 1);
3629 strcpy (name, symbol_name);
3631 sym = symbol_find_or_make (name);
3633 *input_line_pointer = c;
3637 /* Look up the opcode in the hash table. */
3638 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
3640 /* stick in the nop */
3641 insn = opcode->opcode;
3643 /* Write out the instruction. */
3645 md_number_to_chars (f, insn, 4);
3647 f - frag_now->fr_literal,
3652 BFD_RELOC_16_GOT_PCREL);
3665 register char *name;
3669 register symbolS *symbolP;
3672 name = input_line_pointer;
3673 c = get_symbol_end ();
3675 /* just after name is now '\0' */
3676 p = input_line_pointer;
3679 if (*input_line_pointer != ',')
3681 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
3682 ignore_rest_of_line ();
3686 input_line_pointer++; /* skip ',' */
3687 if ((temp = get_absolute_expression ()) < 0)
3689 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
3690 ignore_rest_of_line ();
3696 /* The third argument to .comm is the alignment. */
3697 if (*input_line_pointer != ',')
3701 ++input_line_pointer;
3702 align = get_absolute_expression ();
3705 as_warn (_("ignoring bad alignment"));
3712 symbolP = symbol_find_or_make (name);
3715 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
3717 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
3718 S_GET_NAME (symbolP));
3719 ignore_rest_of_line ();
3723 if (S_GET_VALUE (symbolP))
3725 if (S_GET_VALUE (symbolP) != (valueT) temp)
3726 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
3727 S_GET_NAME (symbolP),
3728 (long) S_GET_VALUE (symbolP),
3733 S_SET_VALUE (symbolP, (valueT) temp);
3734 S_SET_EXTERNAL (symbolP);
3737 demand_empty_rest_of_line ();
3741 * implement the .section pseudo op:
3742 * .section name {, "flags"}
3744 * | +--- optional flags: 'b' for bss
3746 * +-- section name 'l' for lib
3750 * 'd' (apparently m88k for data)
3752 * But if the argument is not a quoted string, treat it as a
3753 * subsegment number.
3755 * FIXME: this is a copy of the section processing from obj-coff.c, with
3756 * additions/changes for the moto-pas assembler support. There are three
3759 * FIXME: I just noticed this. This doesn't work at all really. It it
3760 * setting bits that bfd probably neither understands or uses. The
3761 * correct approach (?) will have to incorporate extra fields attached
3762 * to the section to hold the system specific stuff. (krk)
3765 * 'a' - unknown - referred to in documentation, but no definition supplied
3766 * 'c' - section has code
3767 * 'd' - section has initialized data
3768 * 'u' - section has uninitialized data
3769 * 'i' - section contains directives (info)
3770 * 'n' - section can be discarded
3771 * 'R' - remove section at link time
3773 * Section Protection:
3774 * 'r' - section is readable
3775 * 'w' - section is writeable
3776 * 'x' - section is executable
3777 * 's' - section is sharable
3779 * Section Alignment:
3780 * '0' - align to byte boundary
3781 * '1' - align to halfword undary
3782 * '2' - align to word boundary
3783 * '3' - align to doubleword boundary
3784 * '4' - align to quadword boundary
3785 * '5' - align to 32 byte boundary
3786 * '6' - align to 64 byte boundary
3791 ppc_pe_section (ignore)
3792 int ignore ATTRIBUTE_UNUSED;
3794 /* Strip out the section name */
3803 section_name = input_line_pointer;
3804 c = get_symbol_end ();
3806 name = xmalloc (input_line_pointer - section_name + 1);
3807 strcpy (name, section_name);
3809 *input_line_pointer = c;
3814 flags = SEC_NO_FLAGS;
3816 if (strcmp (name, ".idata$2") == 0)
3820 else if (strcmp (name, ".idata$3") == 0)
3824 else if (strcmp (name, ".idata$4") == 0)
3828 else if (strcmp (name, ".idata$5") == 0)
3832 else if (strcmp (name, ".idata$6") == 0)
3837 align = 4; /* default alignment to 16 byte boundary */
3839 if (*input_line_pointer == ',')
3841 ++input_line_pointer;
3843 if (*input_line_pointer != '"')
3844 exp = get_absolute_expression ();
3847 ++input_line_pointer;
3848 while (*input_line_pointer != '"'
3849 && ! is_end_of_line[(unsigned char) *input_line_pointer])
3851 switch (*input_line_pointer)
3853 /* Section Contents */
3854 case 'a': /* unknown */
3855 as_bad (_("Unsupported section attribute -- 'a'"));
3857 case 'c': /* code section */
3860 case 'd': /* section has initialized data */
3863 case 'u': /* section has uninitialized data */
3864 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
3868 case 'i': /* section contains directives (info) */
3869 /* FIXME: This is IMAGE_SCN_LNK_INFO
3871 flags |= SEC_HAS_CONTENTS;
3873 case 'n': /* section can be discarded */
3876 case 'R': /* Remove section at link time */
3877 flags |= SEC_NEVER_LOAD;
3880 /* Section Protection */
3881 case 'r': /* section is readable */
3882 flags |= IMAGE_SCN_MEM_READ;
3884 case 'w': /* section is writeable */
3885 flags |= IMAGE_SCN_MEM_WRITE;
3887 case 'x': /* section is executable */
3888 flags |= IMAGE_SCN_MEM_EXECUTE;
3890 case 's': /* section is sharable */
3891 flags |= IMAGE_SCN_MEM_SHARED;
3894 /* Section Alignment */
3895 case '0': /* align to byte boundary */
3896 flags |= IMAGE_SCN_ALIGN_1BYTES;
3899 case '1': /* align to halfword boundary */
3900 flags |= IMAGE_SCN_ALIGN_2BYTES;
3903 case '2': /* align to word boundary */
3904 flags |= IMAGE_SCN_ALIGN_4BYTES;
3907 case '3': /* align to doubleword boundary */
3908 flags |= IMAGE_SCN_ALIGN_8BYTES;
3911 case '4': /* align to quadword boundary */
3912 flags |= IMAGE_SCN_ALIGN_16BYTES;
3915 case '5': /* align to 32 byte boundary */
3916 flags |= IMAGE_SCN_ALIGN_32BYTES;
3919 case '6': /* align to 64 byte boundary */
3920 flags |= IMAGE_SCN_ALIGN_64BYTES;
3925 as_bad(_("unknown section attribute '%c'"),
3926 *input_line_pointer);
3929 ++input_line_pointer;
3931 if (*input_line_pointer == '"')
3932 ++input_line_pointer;
3936 sec = subseg_new (name, (subsegT) exp);
3938 ppc_set_current_section(sec);
3940 if (flags != SEC_NO_FLAGS)
3942 if (! bfd_set_section_flags (stdoutput, sec, flags))
3943 as_bad (_("error setting flags for \"%s\": %s"),
3944 bfd_section_name (stdoutput, sec),
3945 bfd_errmsg (bfd_get_error ()));
3948 bfd_set_section_alignment(stdoutput, sec, align);
3953 ppc_pe_function (ignore)
3954 int ignore ATTRIBUTE_UNUSED;
3960 name = input_line_pointer;
3961 endc = get_symbol_end ();
3963 ext_sym = symbol_find_or_make (name);
3965 *input_line_pointer = endc;
3967 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
3968 SF_SET_FUNCTION (ext_sym);
3969 SF_SET_PROCESS (ext_sym);
3970 coff_add_linesym (ext_sym);
3972 demand_empty_rest_of_line ();
3976 ppc_pe_tocd (ignore)
3977 int ignore ATTRIBUTE_UNUSED;
3979 if (tocdata_section == 0)
3981 tocdata_section = subseg_new (".tocd", 0);
3982 /* FIXME: section flags won't work */
3983 bfd_set_section_flags (stdoutput, tocdata_section,
3984 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
3985 | SEC_READONLY | SEC_DATA ));
3987 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
3991 rdata_section = subseg_new (".tocd", 0);
3994 ppc_set_current_section(tocdata_section);
3996 demand_empty_rest_of_line ();
3999 /* Don't adjust TOC relocs to use the section symbol. */
4002 ppc_pe_fix_adjustable (fix)
4005 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
4012 /* XCOFF specific symbol and file handling. */
4014 /* Canonicalize the symbol name. We use the to force the suffix, if
4015 any, to use square brackets, and to be in upper case. */
4018 ppc_canonicalize_symbol_name (name)
4023 if (ppc_stab_symbol)
4026 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
4040 for (s++; *s != '\0' && *s != brac; s++)
4044 if (*s == '\0' || s[1] != '\0')
4045 as_bad (_("bad symbol suffix"));
4053 /* Set the class of a symbol based on the suffix, if any. This is
4054 called whenever a new symbol is created. */
4057 ppc_symbol_new_hook (sym)
4060 struct ppc_tc_sy *tc;
4063 tc = symbol_get_tc (sym);
4067 tc->real_name = NULL;
4073 if (ppc_stab_symbol)
4076 s = strchr (S_GET_NAME (sym), '[');
4077 if (s == (const char *) NULL)
4079 /* There is no suffix. */
4088 if (strcmp (s, "BS]") == 0)
4092 if (strcmp (s, "DB]") == 0)
4094 else if (strcmp (s, "DS]") == 0)
4098 if (strcmp (s, "GL]") == 0)
4102 if (strcmp (s, "PR]") == 0)
4106 if (strcmp (s, "RO]") == 0)
4108 else if (strcmp (s, "RW]") == 0)
4112 if (strcmp (s, "SV]") == 0)
4116 if (strcmp (s, "TC]") == 0)
4118 else if (strcmp (s, "TI]") == 0)
4120 else if (strcmp (s, "TB]") == 0)
4122 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
4123 tc->class = XMC_TC0;
4126 if (strcmp (s, "UA]") == 0)
4128 else if (strcmp (s, "UC]") == 0)
4132 if (strcmp (s, "XO]") == 0)
4137 if (tc->class == -1)
4138 as_bad (_("Unrecognized symbol suffix"));
4141 /* Set the class of a label based on where it is defined. This
4142 handles symbols without suffixes. Also, move the symbol so that it
4143 follows the csect symbol. */
4146 ppc_frob_label (sym)
4149 if (ppc_current_csect != (symbolS *) NULL)
4151 if (symbol_get_tc (sym)->class == -1)
4152 symbol_get_tc (sym)->class = symbol_get_tc (ppc_current_csect)->class;
4154 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4155 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
4156 &symbol_rootP, &symbol_lastP);
4157 symbol_get_tc (ppc_current_csect)->within = sym;
4161 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4162 seen. It tells ppc_adjust_symtab whether it needs to look through
4165 static boolean ppc_saw_abs;
4167 /* Change the name of a symbol just before writing it out. Set the
4168 real name if the .rename pseudo-op was used. Otherwise, remove any
4169 class suffix. Return 1 if the symbol should not be included in the
4173 ppc_frob_symbol (sym)
4176 static symbolS *ppc_last_function;
4177 static symbolS *set_end;
4179 /* Discard symbols that should not be included in the output symbol
4181 if (! symbol_used_in_reloc_p (sym)
4182 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
4183 || (! S_IS_EXTERNAL (sym)
4184 && ! symbol_get_tc (sym)->output
4185 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
4188 if (symbol_get_tc (sym)->real_name != (char *) NULL)
4189 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
4195 name = S_GET_NAME (sym);
4196 s = strchr (name, '[');
4197 if (s != (char *) NULL)
4203 snew = xmalloc (len + 1);
4204 memcpy (snew, name, len);
4207 S_SET_NAME (sym, snew);
4211 if (set_end != (symbolS *) NULL)
4213 SA_SET_SYM_ENDNDX (set_end, sym);
4217 if (SF_GET_FUNCTION (sym))
4219 if (ppc_last_function != (symbolS *) NULL)
4220 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4221 ppc_last_function = sym;
4222 if (symbol_get_tc (sym)->size != (symbolS *) NULL)
4224 resolve_symbol_value (symbol_get_tc (sym)->size, 1);
4225 SA_SET_SYM_FSIZE (sym,
4226 (long) S_GET_VALUE (symbol_get_tc (sym)->size));
4229 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
4230 && strcmp (S_GET_NAME (sym), ".ef") == 0)
4232 if (ppc_last_function == (symbolS *) NULL)
4233 as_bad (_(".ef with no preceding .function"));
4236 set_end = ppc_last_function;
4237 ppc_last_function = NULL;
4239 /* We don't have a C_EFCN symbol, but we need to force the
4240 COFF backend to believe that it has seen one. */
4241 coff_last_function = NULL;
4245 if (! S_IS_EXTERNAL (sym)
4246 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
4247 && S_GET_STORAGE_CLASS (sym) != C_FILE
4248 && S_GET_STORAGE_CLASS (sym) != C_FCN
4249 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
4250 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
4251 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
4252 && S_GET_STORAGE_CLASS (sym) != C_BINCL
4253 && S_GET_STORAGE_CLASS (sym) != C_EINCL
4254 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
4255 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
4257 if (S_GET_STORAGE_CLASS (sym) == C_EXT
4258 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
4261 union internal_auxent *a;
4263 /* Create a csect aux. */
4264 i = S_GET_NUMBER_AUXILIARY (sym);
4265 S_SET_NUMBER_AUXILIARY (sym, i + 1);
4266 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
4267 if (symbol_get_tc (sym)->class == XMC_TC0)
4269 /* This is the TOC table. */
4270 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
4271 a->x_csect.x_scnlen.l = 0;
4272 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
4274 else if (symbol_get_tc (sym)->subseg != 0)
4276 /* This is a csect symbol. x_scnlen is the size of the
4278 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
4279 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
4280 S_GET_SEGMENT (sym))
4281 - S_GET_VALUE (sym));
4284 resolve_symbol_value (symbol_get_tc (sym)->next, 1);
4285 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
4286 - S_GET_VALUE (sym));
4288 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
4290 else if (S_GET_SEGMENT (sym) == bss_section)
4292 /* This is a common symbol. */
4293 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
4294 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
4295 if (S_IS_EXTERNAL (sym))
4296 symbol_get_tc (sym)->class = XMC_RW;
4298 symbol_get_tc (sym)->class = XMC_BS;
4300 else if (S_GET_SEGMENT (sym) == absolute_section)
4302 /* This is an absolute symbol. The csect will be created by
4303 ppc_adjust_symtab. */
4305 a->x_csect.x_smtyp = XTY_LD;
4306 if (symbol_get_tc (sym)->class == -1)
4307 symbol_get_tc (sym)->class = XMC_XO;
4309 else if (! S_IS_DEFINED (sym))
4311 /* This is an external symbol. */
4312 a->x_csect.x_scnlen.l = 0;
4313 a->x_csect.x_smtyp = XTY_ER;
4315 else if (symbol_get_tc (sym)->class == XMC_TC)
4319 /* This is a TOC definition. x_scnlen is the size of the
4321 next = symbol_next (sym);
4322 while (symbol_get_tc (next)->class == XMC_TC0)
4323 next = symbol_next (next);
4324 if (next == (symbolS *) NULL
4325 || symbol_get_tc (next)->class != XMC_TC)
4327 if (ppc_after_toc_frag == (fragS *) NULL)
4328 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
4330 - S_GET_VALUE (sym));
4332 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
4333 - S_GET_VALUE (sym));
4337 resolve_symbol_value (next, 1);
4338 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
4339 - S_GET_VALUE (sym));
4341 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
4347 /* This is a normal symbol definition. x_scnlen is the
4348 symbol index of the containing csect. */
4349 if (S_GET_SEGMENT (sym) == text_section)
4350 csect = ppc_text_csects;
4351 else if (S_GET_SEGMENT (sym) == data_section)
4352 csect = ppc_data_csects;
4356 /* Skip the initial dummy symbol. */
4357 csect = symbol_get_tc (csect)->next;
4359 if (csect == (symbolS *) NULL)
4361 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
4362 a->x_csect.x_scnlen.l = 0;
4366 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
4368 resolve_symbol_value (symbol_get_tc (csect)->next, 1);
4369 if (S_GET_VALUE (symbol_get_tc (csect)->next)
4370 > S_GET_VALUE (sym))
4372 csect = symbol_get_tc (csect)->next;
4375 a->x_csect.x_scnlen.p =
4376 coffsymbol (symbol_get_bfdsym (csect))->native;
4377 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
4380 a->x_csect.x_smtyp = XTY_LD;
4383 a->x_csect.x_parmhash = 0;
4384 a->x_csect.x_snhash = 0;
4385 if (symbol_get_tc (sym)->class == -1)
4386 a->x_csect.x_smclas = XMC_PR;
4388 a->x_csect.x_smclas = symbol_get_tc (sym)->class;
4389 a->x_csect.x_stab = 0;
4390 a->x_csect.x_snstab = 0;
4392 /* Don't let the COFF backend resort these symbols. */
4393 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
4395 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
4397 /* We want the value to be the symbol index of the referenced
4398 csect symbol. BFD will do that for us if we set the right
4402 coffsymbol (symbol_get_bfdsym
4403 (symbol_get_tc (sym)->within))->native));
4404 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
4406 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
4411 /* The value is the offset from the enclosing csect. */
4412 block = symbol_get_tc (sym)->within;
4413 csect = symbol_get_tc (block)->within;
4414 resolve_symbol_value (csect, 1);
4415 S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect));
4417 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
4418 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
4420 /* We want the value to be a file offset into the line numbers.
4421 BFD will do that for us if we set the right flags. We have
4422 already set the value correctly. */
4423 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
4429 /* Adjust the symbol table. This creates csect symbols for all
4430 absolute symbols. */
4433 ppc_adjust_symtab ()
4440 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
4444 union internal_auxent *a;
4446 if (S_GET_SEGMENT (sym) != absolute_section)
4449 csect = symbol_create (".abs[XO]", absolute_section,
4450 S_GET_VALUE (sym), &zero_address_frag);
4451 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
4452 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
4453 i = S_GET_NUMBER_AUXILIARY (csect);
4454 S_SET_NUMBER_AUXILIARY (csect, i + 1);
4455 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
4456 a->x_csect.x_scnlen.l = 0;
4457 a->x_csect.x_smtyp = XTY_SD;
4458 a->x_csect.x_parmhash = 0;
4459 a->x_csect.x_snhash = 0;
4460 a->x_csect.x_smclas = XMC_XO;
4461 a->x_csect.x_stab = 0;
4462 a->x_csect.x_snstab = 0;
4464 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
4466 i = S_GET_NUMBER_AUXILIARY (sym);
4467 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
4468 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
4469 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
4472 ppc_saw_abs = false;
4475 /* Set the VMA for a section. This is called on all the sections in
4479 ppc_frob_section (sec)
4482 static bfd_size_type vma = 0;
4484 bfd_set_section_vma (stdoutput, sec, vma);
4485 vma += bfd_section_size (stdoutput, sec);
4488 #endif /* OBJ_XCOFF */
4490 /* Turn a string in input_line_pointer into a floating point constant
4491 of type TYPE, and store the appropriate bytes in *LITP. The number
4492 of LITTLENUMS emitted is stored in *SIZEP. An error message is
4493 returned, or NULL on OK. */
4496 md_atof (type, litp, sizep)
4502 LITTLENUM_TYPE words[4];
4518 return _("bad call to md_atof");
4521 t = atof_ieee (input_line_pointer, type, words);
4523 input_line_pointer = t;
4527 if (target_big_endian)
4529 for (i = 0; i < prec; i++)
4531 md_number_to_chars (litp, (valueT) words[i], 2);
4537 for (i = prec - 1; i >= 0; i--)
4539 md_number_to_chars (litp, (valueT) words[i], 2);
4547 /* Write a value out to the object file, using the appropriate
4551 md_number_to_chars (buf, val, n)
4556 if (target_big_endian)
4557 number_to_chars_bigendian (buf, val, n);
4559 number_to_chars_littleendian (buf, val, n);
4562 /* Align a section (I don't know why this is machine dependent). */
4565 md_section_align (seg, addr)
4569 int align = bfd_get_section_alignment (stdoutput, seg);
4571 return ((addr + (1 << align) - 1) & (-1 << align));
4574 /* We don't have any form of relaxing. */
4577 md_estimate_size_before_relax (fragp, seg)
4578 fragS *fragp ATTRIBUTE_UNUSED;
4579 asection *seg ATTRIBUTE_UNUSED;
4585 /* Convert a machine dependent frag. We never generate these. */
4588 md_convert_frag (abfd, sec, fragp)
4589 bfd *abfd ATTRIBUTE_UNUSED;
4590 asection *sec ATTRIBUTE_UNUSED;
4591 fragS *fragp ATTRIBUTE_UNUSED;
4596 /* We have no need to default values of symbols. */
4599 md_undefined_symbol (name)
4600 char *name ATTRIBUTE_UNUSED;
4605 /* Functions concerning relocs. */
4607 /* The location from which a PC relative jump should be calculated,
4608 given a PC relative reloc. */
4611 md_pcrel_from_section (fixp, sec)
4613 segT sec ATTRIBUTE_UNUSED;
4615 return fixp->fx_frag->fr_address + fixp->fx_where;
4620 /* This is called to see whether a fixup should be adjusted to use a
4621 section symbol. We take the opportunity to change a fixup against
4622 a symbol in the TOC subsegment into a reloc against the
4623 corresponding .tc symbol. */
4626 ppc_fix_adjustable (fix)
4631 resolve_symbol_value (fix->fx_addsy, 1);
4632 val = S_GET_VALUE (fix->fx_addsy);
4633 if (ppc_toc_csect != (symbolS *) NULL
4634 && fix->fx_addsy != (symbolS *) NULL
4635 && fix->fx_addsy != ppc_toc_csect
4636 && S_GET_SEGMENT (fix->fx_addsy) == data_section
4637 && val >= ppc_toc_frag->fr_address
4638 && (ppc_after_toc_frag == (fragS *) NULL
4639 || val < ppc_after_toc_frag->fr_address))
4643 for (sy = symbol_next (ppc_toc_csect);
4644 sy != (symbolS *) NULL;
4645 sy = symbol_next (sy))
4647 if (symbol_get_tc (sy)->class == XMC_TC0)
4649 if (symbol_get_tc (sy)->class != XMC_TC)
4651 resolve_symbol_value (sy, 1);
4652 if (val == S_GET_VALUE (sy))
4655 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
4660 as_bad_where (fix->fx_file, fix->fx_line,
4661 _("symbol in .toc does not match any .tc"));
4664 /* Possibly adjust the reloc to be against the csect. */
4665 if (fix->fx_addsy != (symbolS *) NULL
4666 && symbol_get_tc (fix->fx_addsy)->subseg == 0
4667 && symbol_get_tc (fix->fx_addsy)->class != XMC_TC0
4668 && symbol_get_tc (fix->fx_addsy)->class != XMC_TC
4669 && S_GET_SEGMENT (fix->fx_addsy) != bss_section
4670 /* Don't adjust if this is a reloc in the toc section. */
4671 && (S_GET_SEGMENT (fix->fx_addsy) != data_section
4672 || ppc_toc_csect == NULL
4673 || val < ppc_toc_frag->fr_address
4674 || (ppc_after_toc_frag != NULL
4675 && val >= ppc_after_toc_frag->fr_address)))
4679 if (S_GET_SEGMENT (fix->fx_addsy) == text_section)
4680 csect = ppc_text_csects;
4681 else if (S_GET_SEGMENT (fix->fx_addsy) == data_section)
4682 csect = ppc_data_csects;
4686 /* Skip the initial dummy symbol. */
4687 csect = symbol_get_tc (csect)->next;
4689 if (csect != (symbolS *) NULL)
4691 while (symbol_get_tc (csect)->next != (symbolS *) NULL
4692 && (symbol_get_frag (symbol_get_tc (csect)->next)->fr_address
4695 /* If the csect address equals the symbol value, then we
4696 have to look through the full symbol table to see
4697 whether this is the csect we want. Note that we will
4698 only get here if the csect has zero length. */
4699 if ((symbol_get_frag (csect)->fr_address == val)
4700 && S_GET_VALUE (csect) == S_GET_VALUE (fix->fx_addsy))
4704 for (scan = symbol_next (csect);
4706 scan = symbol_next (scan))
4708 if (symbol_get_tc (scan)->subseg != 0)
4710 if (scan == fix->fx_addsy)
4714 /* If we found the symbol before the next csect
4715 symbol, then this is the csect we want. */
4716 if (scan == fix->fx_addsy)
4720 csect = symbol_get_tc (csect)->next;
4723 fix->fx_offset += (S_GET_VALUE (fix->fx_addsy)
4724 - symbol_get_frag (csect)->fr_address);
4725 fix->fx_addsy = csect;
4729 /* Adjust a reloc against a .lcomm symbol to be against the base
4731 if (fix->fx_addsy != (symbolS *) NULL
4732 && S_GET_SEGMENT (fix->fx_addsy) == bss_section
4733 && ! S_IS_EXTERNAL (fix->fx_addsy))
4735 resolve_symbol_value (symbol_get_frag (fix->fx_addsy)->fr_symbol, 1);
4737 (S_GET_VALUE (fix->fx_addsy)
4738 - S_GET_VALUE (symbol_get_frag (fix->fx_addsy)->fr_symbol));
4739 fix->fx_addsy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
4745 /* A reloc from one csect to another must be kept. The assembler
4746 will, of course, keep relocs between sections, and it will keep
4747 absolute relocs, but we need to force it to keep PC relative relocs
4748 between two csects in the same section. */
4751 ppc_force_relocation (fix)
4754 /* At this point fix->fx_addsy should already have been converted to
4755 a csect symbol. If the csect does not include the fragment, then
4756 we need to force the relocation. */
4758 && fix->fx_addsy != NULL
4759 && symbol_get_tc (fix->fx_addsy)->subseg != 0
4760 && ((symbol_get_frag (fix->fx_addsy)->fr_address
4761 > fix->fx_frag->fr_address)
4762 || (symbol_get_tc (fix->fx_addsy)->next != NULL
4763 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
4764 <= fix->fx_frag->fr_address))))
4770 #endif /* OBJ_XCOFF */
4772 /* See whether a symbol is in the TOC section. */
4775 ppc_is_toc_sym (sym)
4779 return symbol_get_tc (sym)->class == XMC_TC;
4781 return strcmp (segment_name (S_GET_SEGMENT (sym)), ".got") == 0;
4785 /* Apply a fixup to the object code. This is called for all the
4786 fixups we generated by the call to fix_new_exp, above. In the call
4787 above we used a reloc code which was the largest legal reloc code
4788 plus the operand index. Here we undo that to recover the operand
4789 index. At this point all symbol values should be fully resolved,
4790 and we attempt to completely resolve the reloc. If we can not do
4791 that, we determine the correct reloc code and put it back in the
4795 md_apply_fix3 (fixp, valuep, seg)
4804 if (fixp->fx_addsy != NULL)
4806 /* `*valuep' may contain the value of the symbol on which the reloc
4807 will be based; we have to remove it. */
4808 if (symbol_used_in_reloc_p (fixp->fx_addsy)
4809 && S_GET_SEGMENT (fixp->fx_addsy) != absolute_section
4810 && S_GET_SEGMENT (fixp->fx_addsy) != undefined_section
4811 && ! bfd_is_com_section (S_GET_SEGMENT (fixp->fx_addsy)))
4812 value -= S_GET_VALUE (fixp->fx_addsy);
4814 /* FIXME: Why '+'? Better yet, what exactly is '*valuep'
4815 supposed to be? I think this is related to various similar
4816 FIXMEs in tc-i386.c and tc-sparc.c. */
4818 value += fixp->fx_frag->fr_address + fixp->fx_where;
4825 /* FIXME FIXME FIXME: The value we are passed in *valuep includes
4826 the symbol values. Since we are using BFD_ASSEMBLER, if we are
4827 doing this relocation the code in write.c is going to call
4828 bfd_install_relocation, which is also going to use the symbol
4829 value. That means that if the reloc is fully resolved we want to
4830 use *valuep since bfd_install_relocation is not being used.
4831 However, if the reloc is not fully resolved we do not want to use
4832 *valuep, and must use fx_offset instead. However, if the reloc
4833 is PC relative, we do want to use *valuep since it includes the
4834 result of md_pcrel_from. This is confusing. */
4835 if (fixp->fx_addsy == (symbolS *) NULL)
4840 else if (fixp->fx_pcrel)
4844 value = fixp->fx_offset;
4845 if (fixp->fx_subsy != (symbolS *) NULL)
4847 if (S_GET_SEGMENT (fixp->fx_subsy) == absolute_section)
4848 value -= S_GET_VALUE (fixp->fx_subsy);
4851 /* We can't actually support subtracting a symbol. */
4852 as_bad_where (fixp->fx_file, fixp->fx_line,
4853 _("expression too complex"));
4859 if ((int) fixp->fx_r_type >= (int) BFD_RELOC_UNUSED)
4862 const struct powerpc_operand *operand;
4866 opindex = (int) fixp->fx_r_type - (int) BFD_RELOC_UNUSED;
4868 operand = &powerpc_operands[opindex];
4871 /* It appears that an instruction like
4873 when LC..1 is not a TOC symbol does not generate a reloc. It
4874 uses the offset of LC..1 within its csect. However, .long
4875 LC..1 will generate a reloc. I can't find any documentation
4876 on how these cases are to be distinguished, so this is a wild
4877 guess. These cases are generated by gcc -mminimal-toc. */
4878 if ((operand->flags & PPC_OPERAND_PARENS) != 0
4879 && operand->bits == 16
4880 && operand->shift == 0
4881 && operand->insert == NULL
4882 && fixp->fx_addsy != NULL
4883 && symbol_get_tc (fixp->fx_addsy)->subseg != 0
4884 && symbol_get_tc (fixp->fx_addsy)->class != XMC_TC
4885 && symbol_get_tc (fixp->fx_addsy)->class != XMC_TC0
4886 && S_GET_SEGMENT (fixp->fx_addsy) != bss_section)
4888 value = fixp->fx_offset;
4893 /* Fetch the instruction, insert the fully resolved operand
4894 value, and stuff the instruction back again. */
4895 where = fixp->fx_frag->fr_literal + fixp->fx_where;
4896 if (target_big_endian)
4897 insn = bfd_getb32 ((unsigned char *) where);
4899 insn = bfd_getl32 ((unsigned char *) where);
4900 insn = ppc_insert_operand (insn, operand, (offsetT) value,
4901 fixp->fx_file, fixp->fx_line);
4902 if (target_big_endian)
4903 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
4905 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
4909 /* Nothing else to do here. */
4913 /* Determine a BFD reloc value based on the operand information.
4914 We are only prepared to turn a few of the operands into
4916 FIXME: We need to handle the DS field at the very least.
4917 FIXME: Selecting the reloc type is a bit haphazard; perhaps
4918 there should be a new field in the operand table. */
4919 if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
4920 && operand->bits == 26
4921 && operand->shift == 0)
4922 fixp->fx_r_type = BFD_RELOC_PPC_B26;
4923 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
4924 && operand->bits == 16
4925 && operand->shift == 0)
4926 fixp->fx_r_type = BFD_RELOC_PPC_B16;
4927 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
4928 && operand->bits == 26
4929 && operand->shift == 0)
4930 fixp->fx_r_type = BFD_RELOC_PPC_BA26;
4931 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
4932 && operand->bits == 16
4933 && operand->shift == 0)
4934 fixp->fx_r_type = BFD_RELOC_PPC_BA16;
4935 else if ((operand->flags & PPC_OPERAND_PARENS) != 0
4936 && operand->bits == 16
4937 && operand->shift == 0
4938 && fixp->fx_addsy != NULL
4939 && ppc_is_toc_sym (fixp->fx_addsy))
4942 if (target_big_endian)
4943 fixp->fx_where += 2;
4944 fixp->fx_r_type = BFD_RELOC_PPC_TOC16;
4951 /* Use expr_symbol_where to see if this is an expression
4953 if (expr_symbol_where (fixp->fx_addsy, &sfile, &sline))
4954 as_bad_where (fixp->fx_file, fixp->fx_line,
4955 _("unresolved expression that must be resolved"));
4957 as_bad_where (fixp->fx_file, fixp->fx_line,
4958 _("unsupported relocation type"));
4966 ppc_elf_validate_fix (fixp, seg);
4968 switch (fixp->fx_r_type)
4971 case BFD_RELOC_CTOR:
4973 fixp->fx_r_type = BFD_RELOC_32_PCREL;
4977 case BFD_RELOC_32_PCREL:
4978 case BFD_RELOC_32_BASEREL:
4979 case BFD_RELOC_PPC_EMB_NADDR32:
4980 md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where,
4986 fixp->fx_r_type = BFD_RELOC_64_PCREL;
4988 case BFD_RELOC_64_PCREL:
4989 md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where,
4992 case BFD_RELOC_LO16:
4994 case BFD_RELOC_GPREL16:
4995 case BFD_RELOC_16_GOT_PCREL:
4996 case BFD_RELOC_16_GOTOFF:
4997 case BFD_RELOC_LO16_GOTOFF:
4998 case BFD_RELOC_HI16_GOTOFF:
4999 case BFD_RELOC_HI16_S_GOTOFF:
5000 case BFD_RELOC_LO16_BASEREL:
5001 case BFD_RELOC_HI16_BASEREL:
5002 case BFD_RELOC_HI16_S_BASEREL:
5003 case BFD_RELOC_PPC_EMB_NADDR16:
5004 case BFD_RELOC_PPC_EMB_NADDR16_LO:
5005 case BFD_RELOC_PPC_EMB_NADDR16_HI:
5006 case BFD_RELOC_PPC_EMB_NADDR16_HA:
5007 case BFD_RELOC_PPC_EMB_SDAI16:
5008 case BFD_RELOC_PPC_EMB_SDA2REL:
5009 case BFD_RELOC_PPC_EMB_SDA2I16:
5010 case BFD_RELOC_PPC_EMB_RELSEC16:
5011 case BFD_RELOC_PPC_EMB_RELST_LO:
5012 case BFD_RELOC_PPC_EMB_RELST_HI:
5013 case BFD_RELOC_PPC_EMB_RELST_HA:
5014 case BFD_RELOC_PPC_EMB_RELSDA:
5015 case BFD_RELOC_PPC_TOC16:
5018 if (fixp->fx_addsy != NULL)
5019 as_bad_where (fixp->fx_file, fixp->fx_line,
5020 _("cannot emit PC relative %s relocation against %s"),
5021 bfd_get_reloc_code_name (fixp->fx_r_type),
5022 S_GET_NAME (fixp->fx_addsy));
5024 as_bad_where (fixp->fx_file, fixp->fx_line,
5025 _("cannot emit PC relative %s relocation"),
5026 bfd_get_reloc_code_name (fixp->fx_r_type));
5029 md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where,
5033 /* This case happens when you write, for example,
5035 where L1 and L2 are defined later. */
5036 case BFD_RELOC_HI16:
5039 md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where,
5042 case BFD_RELOC_HI16_S:
5045 md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where,
5046 (value + 0x8000) >> 16, 2);
5049 /* Because SDA21 modifies the register field, the size is set to 4
5050 bytes, rather than 2, so offset it here appropriately */
5051 case BFD_RELOC_PPC_EMB_SDA21:
5055 md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where
5056 + ((target_big_endian) ? 2 : 0),
5064 md_number_to_chars (fixp->fx_frag->fr_literal + fixp->fx_where,
5068 case BFD_RELOC_24_PLT_PCREL:
5069 case BFD_RELOC_PPC_LOCAL24PC:
5070 if (!fixp->fx_pcrel && !fixp->fx_done)
5078 /* Fetch the instruction, insert the fully resolved operand
5079 value, and stuff the instruction back again. */
5080 where = fixp->fx_frag->fr_literal + fixp->fx_where;
5081 if (target_big_endian)
5082 insn = bfd_getb32 ((unsigned char *) where);
5084 insn = bfd_getl32 ((unsigned char *) where);
5085 if ((value & 3) != 0)
5086 as_bad_where (fixp->fx_file, fixp->fx_line,
5087 _("must branch to an address a multiple of 4"));
5088 if ((offsetT) value < -0x40000000
5089 || (offsetT) value >= 0x40000000)
5090 as_bad_where (fixp->fx_file, fixp->fx_line,
5091 _("@local or @plt branch destination is too far away, %ld bytes"),
5093 insn = insn | (value & 0x03fffffc);
5094 if (target_big_endian)
5095 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5097 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5101 case BFD_RELOC_VTABLE_INHERIT:
5104 && !S_IS_DEFINED (fixp->fx_addsy)
5105 && !S_IS_WEAK (fixp->fx_addsy))
5106 S_SET_WEAK (fixp->fx_addsy);
5109 case BFD_RELOC_VTABLE_ENTRY:
5115 _("Gas failure, reloc value %d\n"), fixp->fx_r_type);
5122 fixp->fx_addnumber = value;
5124 if (fixp->fx_r_type != BFD_RELOC_PPC_TOC16)
5125 fixp->fx_addnumber = 0;
5129 fixp->fx_addnumber = 0;
5131 /* We want to use the offset within the data segment of the
5132 symbol, not the actual VMA of the symbol. */
5133 fixp->fx_addnumber =
5134 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixp->fx_addsy));
5142 /* Generate a reloc for a fixup. */
5145 tc_gen_reloc (seg, fixp)
5146 asection *seg ATTRIBUTE_UNUSED;
5151 reloc = (arelent *) xmalloc (sizeof (arelent));
5153 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
5154 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
5155 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
5156 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
5157 if (reloc->howto == (reloc_howto_type *) NULL)
5159 as_bad_where (fixp->fx_file, fixp->fx_line,
5160 _("reloc %d not supported by object file format"), (int)fixp->fx_r_type);
5163 reloc->addend = fixp->fx_addnumber;