1 /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000)
2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
3 2004, 2005, 2006, 2007, 2008, 2009 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 3, 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, 51 Franklin Street - Fifth Floor, Boston, MA
24 #include "safe-ctype.h"
26 #include "dw2gencfi.h"
27 #include "opcode/ppc.h"
31 #include "dwarf2dbg.h"
38 /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
40 /* Tell the main code what the endianness is. */
41 extern int target_big_endian;
43 /* Whether or not, we've set target_big_endian. */
44 static int set_target_endian = 0;
46 /* Whether to use user friendly register names. */
47 #ifndef TARGET_REG_NAMES_P
49 #define TARGET_REG_NAMES_P TRUE
51 #define TARGET_REG_NAMES_P FALSE
55 /* Macros for calculating LO, HI, HA, HIGHER, HIGHERA, HIGHEST,
58 /* #lo(value) denotes the least significant 16 bits of the indicated. */
59 #define PPC_LO(v) ((v) & 0xffff)
61 /* #hi(value) denotes bits 16 through 31 of the indicated value. */
62 #define PPC_HI(v) (((v) >> 16) & 0xffff)
64 /* #ha(value) denotes the high adjusted value: bits 16 through 31 of
65 the indicated value, compensating for #lo() being treated as a
67 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
69 /* #higher(value) denotes bits 32 through 47 of the indicated value. */
70 #define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff)
72 /* #highera(value) denotes bits 32 through 47 of the indicated value,
73 compensating for #lo() being treated as a signed number. */
74 #define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000)
76 /* #highest(value) denotes bits 48 through 63 of the indicated value. */
77 #define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff)
79 /* #highesta(value) denotes bits 48 through 63 of the indicated value,
80 compensating for #lo being treated as a signed number. */
81 #define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000)
83 #define SEX16(val) ((((val) & 0xffff) ^ 0x8000) - 0x8000)
85 static bfd_boolean reg_names_p = TARGET_REG_NAMES_P;
87 static void ppc_macro (char *, const struct powerpc_macro *);
88 static void ppc_byte (int);
90 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
91 static void ppc_tc (int);
92 static void ppc_machine (int);
96 static void ppc_comm (int);
97 static void ppc_bb (int);
98 static void ppc_bc (int);
99 static void ppc_bf (int);
100 static void ppc_biei (int);
101 static void ppc_bs (int);
102 static void ppc_eb (int);
103 static void ppc_ec (int);
104 static void ppc_ef (int);
105 static void ppc_es (int);
106 static void ppc_csect (int);
107 static void ppc_change_csect (symbolS *, offsetT);
108 static void ppc_function (int);
109 static void ppc_extern (int);
110 static void ppc_lglobl (int);
111 static void ppc_section (int);
112 static void ppc_named_section (int);
113 static void ppc_stabx (int);
114 static void ppc_rename (int);
115 static void ppc_toc (int);
116 static void ppc_xcoff_cons (int);
117 static void ppc_vbyte (int);
121 static void ppc_elf_cons (int);
122 static void ppc_elf_rdata (int);
123 static void ppc_elf_lcomm (int);
127 static void ppc_previous (int);
128 static void ppc_pdata (int);
129 static void ppc_ydata (int);
130 static void ppc_reldata (int);
131 static void ppc_rdata (int);
132 static void ppc_ualong (int);
133 static void ppc_znop (int);
134 static void ppc_pe_comm (int);
135 static void ppc_pe_section (int);
136 static void ppc_pe_function (int);
137 static void ppc_pe_tocd (int);
140 /* Generic assembler global variables which must be defined by all
144 /* This string holds the chars that always start a comment. If the
145 pre-processor is disabled, these aren't very useful. The macro
146 tc_comment_chars points to this. We use this, rather than the
147 usual comment_chars, so that we can switch for Solaris conventions. */
148 static const char ppc_solaris_comment_chars[] = "#!";
149 static const char ppc_eabi_comment_chars[] = "#";
151 #ifdef TARGET_SOLARIS_COMMENT
152 const char *ppc_comment_chars = ppc_solaris_comment_chars;
154 const char *ppc_comment_chars = ppc_eabi_comment_chars;
157 const char comment_chars[] = "#";
160 /* Characters which start a comment at the beginning of a line. */
161 const char line_comment_chars[] = "#";
163 /* Characters which may be used to separate multiple commands on a
165 const char line_separator_chars[] = ";";
167 /* Characters which are used to indicate an exponent in a floating
169 const char EXP_CHARS[] = "eE";
171 /* Characters which mean that a number is a floating point constant,
173 const char FLT_CHARS[] = "dD";
175 /* Anything that can start an operand needs to be mentioned here,
176 to stop the input scrubber eating whitespace. */
177 const char ppc_symbol_chars[] = "%[";
179 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
180 int ppc_cie_data_alignment;
182 /* The type of processor we are assembling for. This is one or more
183 of the PPC_OPCODE flags defined in opcode/ppc.h. */
184 ppc_cpu_t ppc_cpu = 0;
186 /* The target specific pseudo-ops which we support. */
188 const pseudo_typeS md_pseudo_table[] =
190 /* Pseudo-ops which must be overridden. */
191 { "byte", ppc_byte, 0 },
194 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
195 legitimately belong in the obj-*.c file. However, XCOFF is based
196 on COFF, and is only implemented for the RS/6000. We just use
197 obj-coff.c, and add what we need here. */
198 { "comm", ppc_comm, 0 },
199 { "lcomm", ppc_comm, 1 },
203 { "bi", ppc_biei, 0 },
205 { "csect", ppc_csect, 0 },
206 { "data", ppc_section, 'd' },
210 { "ei", ppc_biei, 1 },
212 { "extern", ppc_extern, 0 },
213 { "function", ppc_function, 0 },
214 { "lglobl", ppc_lglobl, 0 },
215 { "rename", ppc_rename, 0 },
216 { "section", ppc_named_section, 0 },
217 { "stabx", ppc_stabx, 0 },
218 { "text", ppc_section, 't' },
219 { "toc", ppc_toc, 0 },
220 { "long", ppc_xcoff_cons, 2 },
221 { "llong", ppc_xcoff_cons, 3 },
222 { "word", ppc_xcoff_cons, 1 },
223 { "short", ppc_xcoff_cons, 1 },
224 { "vbyte", ppc_vbyte, 0 },
228 { "llong", ppc_elf_cons, 8 },
229 { "quad", ppc_elf_cons, 8 },
230 { "long", ppc_elf_cons, 4 },
231 { "word", ppc_elf_cons, 2 },
232 { "short", ppc_elf_cons, 2 },
233 { "rdata", ppc_elf_rdata, 0 },
234 { "rodata", ppc_elf_rdata, 0 },
235 { "lcomm", ppc_elf_lcomm, 0 },
239 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
240 { "previous", ppc_previous, 0 },
241 { "pdata", ppc_pdata, 0 },
242 { "ydata", ppc_ydata, 0 },
243 { "reldata", ppc_reldata, 0 },
244 { "rdata", ppc_rdata, 0 },
245 { "ualong", ppc_ualong, 0 },
246 { "znop", ppc_znop, 0 },
247 { "comm", ppc_pe_comm, 0 },
248 { "lcomm", ppc_pe_comm, 1 },
249 { "section", ppc_pe_section, 0 },
250 { "function", ppc_pe_function,0 },
251 { "tocd", ppc_pe_tocd, 0 },
254 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
256 { "machine", ppc_machine, 0 },
263 /* Predefined register names if -mregnames (or default for Windows NT).
264 In general, there are lots of them, in an attempt to be compatible
265 with a number of other Windows NT assemblers. */
267 /* Structure to hold information about predefined registers. */
274 /* List of registers that are pre-defined:
276 Each general register has predefined names of the form:
277 1. r<reg_num> which has the value <reg_num>.
278 2. r.<reg_num> which has the value <reg_num>.
280 Each floating point register has predefined names of the form:
281 1. f<reg_num> which has the value <reg_num>.
282 2. f.<reg_num> which has the value <reg_num>.
284 Each vector unit register has predefined names of the form:
285 1. v<reg_num> which has the value <reg_num>.
286 2. v.<reg_num> which has the value <reg_num>.
288 Each condition register has predefined names of the form:
289 1. cr<reg_num> which has the value <reg_num>.
290 2. cr.<reg_num> which has the value <reg_num>.
292 There are individual registers as well:
293 sp or r.sp has the value 1
294 rtoc or r.toc has the value 2
295 fpscr has the value 0
301 dsisr has the value 18
303 sdr1 has the value 25
304 srr0 has the value 26
305 srr1 has the value 27
307 The table is sorted. Suitable for searching by a binary search. */
309 static const struct pd_reg pre_defined_registers[] =
311 { "cr.0", 0 }, /* Condition Registers */
331 { "dar", 19 }, /* Data Access Register */
332 { "dec", 22 }, /* Decrementer */
333 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
335 { "f.0", 0 }, /* Floating point registers */
362 { "f.32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
428 { "f32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
469 /* Quantization registers used with pair single instructions. */
487 { "lr", 8 }, /* Link Register */
491 { "r.0", 0 }, /* General Purpose Registers */
524 { "r.sp", 1 }, /* Stack Pointer */
526 { "r.toc", 2 }, /* Pointer to the table of contents */
528 { "r0", 0 }, /* More general purpose registers */
561 { "rtoc", 2 }, /* Table of contents */
563 { "sdr1", 25 }, /* Storage Description Register 1 */
567 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
568 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
570 { "v.0", 0 }, /* Vector (Altivec/VMX) registers */
636 { "vs.0", 0 }, /* Vector Scalar (VSX) registers (ISA 2.06). */
770 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
772 /* Given NAME, find the register number associated with that name, return
773 the integer value associated with the given name or -1 on failure. */
776 reg_name_search (const struct pd_reg *regs, int regcount, const char *name)
778 int middle, low, high;
786 middle = (low + high) / 2;
787 cmp = strcasecmp (name, regs[middle].name);
793 return regs[middle].value;
801 * Summary of register_name.
803 * in: Input_line_pointer points to 1st char of operand.
805 * out: A expressionS.
806 * The operand may have been a register: in this case, X_op == O_register,
807 * X_add_number is set to the register number, and truth is returned.
808 * Input_line_pointer->(next non-blank) char after operand, or is in its
813 register_name (expressionS *expressionP)
820 /* Find the spelling of the operand. */
821 start = name = input_line_pointer;
822 if (name[0] == '%' && ISALPHA (name[1]))
823 name = ++input_line_pointer;
825 else if (!reg_names_p || !ISALPHA (name[0]))
828 c = get_symbol_end ();
829 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
831 /* Put back the delimiting char. */
832 *input_line_pointer = c;
834 /* Look to see if it's in the register table. */
837 expressionP->X_op = O_register;
838 expressionP->X_add_number = reg_number;
840 /* Make the rest nice. */
841 expressionP->X_add_symbol = NULL;
842 expressionP->X_op_symbol = NULL;
846 /* Reset the line as if we had not done anything. */
847 input_line_pointer = start;
851 /* This function is called for each symbol seen in an expression. It
852 handles the special parsing which PowerPC assemblers are supposed
853 to use for condition codes. */
855 /* Whether to do the special parsing. */
856 static bfd_boolean cr_operand;
858 /* Names to recognize in a condition code. This table is sorted. */
859 static const struct pd_reg cr_names[] =
876 /* Parsing function. This returns non-zero if it recognized an
880 ppc_parse_name (const char *name, expressionS *expr)
889 val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0],
894 expr->X_op = O_constant;
895 expr->X_add_number = val;
900 /* Local variables. */
902 /* Whether to target xcoff64/elf64. */
903 static unsigned int ppc_obj64 = BFD_DEFAULT_TARGET_SIZE == 64;
905 /* Opcode hash table. */
906 static struct hash_control *ppc_hash;
908 /* Macro hash table. */
909 static struct hash_control *ppc_macro_hash;
912 /* What type of shared library support to use. */
913 static enum { SHLIB_NONE, SHLIB_PIC, SHLIB_MRELOCATABLE } shlib = SHLIB_NONE;
915 /* Flags to set in the elf header. */
916 static flagword ppc_flags = 0;
918 /* Whether this is Solaris or not. */
919 #ifdef TARGET_SOLARIS_COMMENT
920 #define SOLARIS_P TRUE
922 #define SOLARIS_P FALSE
925 static bfd_boolean msolaris = SOLARIS_P;
930 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
931 using a bunch of different sections. These assembler sections,
932 however, are all encompassed within the .text or .data sections of
933 the final output file. We handle this by using different
934 subsegments within these main segments. */
936 /* Next subsegment to allocate within the .text segment. */
937 static subsegT ppc_text_subsegment = 2;
939 /* Linked list of csects in the text section. */
940 static symbolS *ppc_text_csects;
942 /* Next subsegment to allocate within the .data segment. */
943 static subsegT ppc_data_subsegment = 2;
945 /* Linked list of csects in the data section. */
946 static symbolS *ppc_data_csects;
948 /* The current csect. */
949 static symbolS *ppc_current_csect;
951 /* The RS/6000 assembler uses a TOC which holds addresses of functions
952 and variables. Symbols are put in the TOC with the .tc pseudo-op.
953 A special relocation is used when accessing TOC entries. We handle
954 the TOC as a subsegment within the .data segment. We set it up if
955 we see a .toc pseudo-op, and save the csect symbol here. */
956 static symbolS *ppc_toc_csect;
958 /* The first frag in the TOC subsegment. */
959 static fragS *ppc_toc_frag;
961 /* The first frag in the first subsegment after the TOC in the .data
962 segment. NULL if there are no subsegments after the TOC. */
963 static fragS *ppc_after_toc_frag;
965 /* The current static block. */
966 static symbolS *ppc_current_block;
968 /* The COFF debugging section; set by md_begin. This is not the
969 .debug section, but is instead the secret BFD section which will
970 cause BFD to set the section number of a symbol to N_DEBUG. */
971 static asection *ppc_coff_debug_section;
973 #endif /* OBJ_XCOFF */
977 /* Various sections that we need for PE coff support. */
978 static segT ydata_section;
979 static segT pdata_section;
980 static segT reldata_section;
981 static segT rdata_section;
982 static segT tocdata_section;
984 /* The current section and the previous section. See ppc_previous. */
985 static segT ppc_previous_section;
986 static segT ppc_current_section;
991 symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
992 #define PPC_APUINFO_ISEL 0x40
993 #define PPC_APUINFO_PMR 0x41
994 #define PPC_APUINFO_RFMCI 0x42
995 #define PPC_APUINFO_CACHELCK 0x43
996 #define PPC_APUINFO_SPE 0x100
997 #define PPC_APUINFO_EFS 0x101
998 #define PPC_APUINFO_BRLOCK 0x102
1001 * We keep a list of APUinfo
1003 unsigned long *ppc_apuinfo_list;
1004 unsigned int ppc_apuinfo_num;
1005 unsigned int ppc_apuinfo_num_alloc;
1006 #endif /* OBJ_ELF */
1009 const char *const md_shortopts = "b:l:usm:K:VQ:";
1011 const char *const md_shortopts = "um:";
1013 const struct option md_longopts[] = {
1014 {NULL, no_argument, NULL, 0}
1016 const size_t md_longopts_size = sizeof (md_longopts);
1019 /* Handle -m options that set cpu type, and .machine arg. */
1022 parse_cpu (const char *arg)
1024 ppc_cpu_t retain_flags =
1025 ppc_cpu & (PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX | PPC_OPCODE_SPE);
1027 /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2
1029 if (strcmp (arg, "pwrx") == 0 || strcmp (arg, "pwr2") == 0)
1030 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_POWER2 | PPC_OPCODE_32;
1031 /* -mpwr means to assemble for the IBM POWER (RIOS1). */
1032 else if (strcmp (arg, "pwr") == 0)
1033 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_32;
1034 /* -m601 means to assemble for the PowerPC 601, which includes
1035 instructions that are holdovers from the Power. */
1036 else if (strcmp (arg, "601") == 0)
1037 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
1038 | PPC_OPCODE_601 | PPC_OPCODE_32);
1039 /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the
1041 else if (strcmp (arg, "ppc") == 0
1042 || strcmp (arg, "ppc32") == 0
1043 || strcmp (arg, "603") == 0
1044 || strcmp (arg, "604") == 0)
1045 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
1046 /* Do all PPC750s have paired single ops? */
1047 else if (strcmp (arg, "750cl") == 0)
1048 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_PPCPS;
1049 else if (strcmp (arg, "403") == 0)
1050 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
1051 | PPC_OPCODE_403 | PPC_OPCODE_32);
1052 else if (strcmp (arg, "405") == 0)
1053 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
1054 | PPC_OPCODE_403 | PPC_OPCODE_405 | PPC_OPCODE_32);
1055 else if (strcmp (arg, "440") == 0
1056 || strcmp (arg, "464") == 0)
1057 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32
1058 | PPC_OPCODE_440 | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI);
1059 else if (strcmp (arg, "7400") == 0
1060 || strcmp (arg, "7410") == 0
1061 || strcmp (arg, "7450") == 0
1062 || strcmp (arg, "7455") == 0)
1063 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
1064 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_32);
1065 else if (strcmp (arg, "e300") == 0)
1066 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32
1068 else if (strcmp (arg, "altivec") == 0)
1071 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC;
1073 retain_flags |= PPC_OPCODE_ALTIVEC;
1075 else if (strcmp (arg, "vsx") == 0)
1078 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC;
1080 retain_flags |= PPC_OPCODE_VSX;
1082 else if (strcmp (arg, "e500") == 0 || strcmp (arg, "e500x2") == 0)
1084 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
1085 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
1086 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
1087 | PPC_OPCODE_RFMCI | PPC_OPCODE_E500MC);
1089 else if (strcmp (arg, "e500mc") == 0)
1091 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_ISEL
1092 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
1093 | PPC_OPCODE_RFMCI | PPC_OPCODE_E500MC);
1095 else if (strcmp (arg, "spe") == 0)
1098 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_EFS;
1100 retain_flags |= PPC_OPCODE_SPE;
1102 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
1104 else if (strcmp (arg, "ppc64") == 0 || strcmp (arg, "620") == 0)
1106 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
1108 else if (strcmp (arg, "ppc64bridge") == 0)
1110 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
1111 | PPC_OPCODE_64_BRIDGE | PPC_OPCODE_64);
1113 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
1114 else if (strcmp (arg, "booke") == 0 || strcmp (arg, "booke32") == 0)
1116 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32;
1118 else if (strcmp (arg, "power4") == 0)
1120 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
1121 | PPC_OPCODE_64 | PPC_OPCODE_POWER4);
1123 else if (strcmp (arg, "power5") == 0)
1125 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
1126 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
1127 | PPC_OPCODE_POWER5);
1129 else if (strcmp (arg, "power6") == 0)
1131 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
1132 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
1133 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6
1134 | PPC_OPCODE_ALTIVEC);
1136 else if (strcmp (arg, "power7") == 0)
1138 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
1139 | PPC_OPCODE_ISEL | PPC_OPCODE_64
1140 | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5
1141 | PPC_OPCODE_POWER6 | PPC_OPCODE_POWER7
1142 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX);
1144 else if (strcmp (arg, "cell") == 0)
1146 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
1147 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
1148 | PPC_OPCODE_CELL | PPC_OPCODE_ALTIVEC);
1150 /* -mcom means assemble for the common intersection between Power
1151 and PowerPC. At present, we just allow the union, rather
1152 than the intersection. */
1153 else if (strcmp (arg, "com") == 0)
1154 ppc_cpu = PPC_OPCODE_COMMON | PPC_OPCODE_32;
1155 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
1156 else if (strcmp (arg, "any") == 0)
1157 ppc_cpu |= PPC_OPCODE_ANY;
1161 /* Make sure the the Altivec, VSX and SPE bits are not lost. */
1162 ppc_cpu |= retain_flags;
1167 md_parse_option (int c, char *arg)
1172 /* -u means that any undefined symbols should be treated as
1173 external, which is the default for gas anyhow. */
1178 /* Solaris as takes -le (presumably for little endian). For completeness
1179 sake, recognize -be also. */
1180 if (strcmp (arg, "e") == 0)
1182 target_big_endian = 0;
1183 set_target_endian = 1;
1191 if (strcmp (arg, "e") == 0)
1193 target_big_endian = 1;
1194 set_target_endian = 1;
1202 /* Recognize -K PIC. */
1203 if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
1206 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1214 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
1216 if (strcmp (arg, "64") == 0)
1221 as_fatal (_("%s unsupported"), "-a64");
1224 else if (strcmp (arg, "32") == 0)
1231 if (parse_cpu (arg))
1234 else if (strcmp (arg, "regnames") == 0)
1237 else if (strcmp (arg, "no-regnames") == 0)
1238 reg_names_p = FALSE;
1241 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1242 that require relocation. */
1243 else if (strcmp (arg, "relocatable") == 0)
1245 shlib = SHLIB_MRELOCATABLE;
1246 ppc_flags |= EF_PPC_RELOCATABLE;
1249 else if (strcmp (arg, "relocatable-lib") == 0)
1251 shlib = SHLIB_MRELOCATABLE;
1252 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1255 /* -memb, set embedded bit. */
1256 else if (strcmp (arg, "emb") == 0)
1257 ppc_flags |= EF_PPC_EMB;
1259 /* -mlittle/-mbig set the endianess. */
1260 else if (strcmp (arg, "little") == 0
1261 || strcmp (arg, "little-endian") == 0)
1263 target_big_endian = 0;
1264 set_target_endian = 1;
1267 else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0)
1269 target_big_endian = 1;
1270 set_target_endian = 1;
1273 else if (strcmp (arg, "solaris") == 0)
1276 ppc_comment_chars = ppc_solaris_comment_chars;
1279 else if (strcmp (arg, "no-solaris") == 0)
1282 ppc_comment_chars = ppc_eabi_comment_chars;
1287 as_bad (_("invalid switch -m%s"), arg);
1293 /* -V: SVR4 argument to print version ID. */
1295 print_version_id ();
1298 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1299 should be emitted or not. FIXME: Not implemented. */
1303 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1304 rather than .stabs.excl, which is ignored by the linker.
1305 FIXME: Not implemented. */
1321 md_show_usage (FILE *stream)
1323 fprintf (stream, _("\
1325 -a32 generate ELF32/XCOFF32\n\
1326 -a64 generate ELF64/XCOFF64\n\
1328 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1329 -mpwr generate code for POWER (RIOS1)\n\
1330 -m601 generate code for PowerPC 601\n\
1331 -mppc, -mppc32, -m603, -m604\n\
1332 generate code for PowerPC 603/604\n\
1333 -m403 generate code for PowerPC 403\n\
1334 -m405 generate code for PowerPC 405\n\
1335 -m440 generate code for PowerPC 440\n\
1336 -m464 generate code for PowerPC 464\n\
1337 -m7400, -m7410, -m7450, -m7455\n\
1338 generate code for PowerPC 7400/7410/7450/7455\n\
1339 -m750cl generate code for PowerPC 750cl\n"));
1340 fprintf (stream, _("\
1341 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1342 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1343 -mbooke generate code for 32-bit PowerPC BookE\n\
1344 -mpower4 generate code for Power4 architecture\n\
1345 -mpower5 generate code for Power5 architecture\n\
1346 -mpower6 generate code for Power6 architecture\n\
1347 -mpower7 generate code for Power7 architecture\n\
1348 -mcell generate code for Cell Broadband Engine architecture\n\
1349 -mcom generate code Power/PowerPC common instructions\n\
1350 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1351 fprintf (stream, _("\
1352 -maltivec generate code for AltiVec\n\
1353 -mvsx generate code for Vector-Scalar (VSX) instructions\n\
1354 -me300 generate code for PowerPC e300 family\n\
1355 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1356 -me500mc, generate code for Freescale e500mc core complex\n\
1357 -mspe generate code for Motorola SPE instructions\n\
1358 -mregnames Allow symbolic names for registers\n\
1359 -mno-regnames Do not allow symbolic names for registers\n"));
1361 fprintf (stream, _("\
1362 -mrelocatable support for GCC's -mrelocatble option\n\
1363 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1364 -memb set PPC_EMB bit in ELF flags\n\
1365 -mlittle, -mlittle-endian, -l, -le\n\
1366 generate code for a little endian machine\n\
1367 -mbig, -mbig-endian, -b, -be\n\
1368 generate code for a big endian machine\n\
1369 -msolaris generate code for Solaris\n\
1370 -mno-solaris do not generate code for Solaris\n\
1371 -V print assembler version number\n\
1372 -Qy, -Qn ignored\n"));
1376 /* Set ppc_cpu if it is not already set. */
1381 const char *default_os = TARGET_OS;
1382 const char *default_cpu = TARGET_CPU;
1384 if ((ppc_cpu & ~PPC_OPCODE_ANY) == 0)
1387 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
1388 else if (strncmp (default_os, "aix", 3) == 0
1389 && default_os[3] >= '4' && default_os[3] <= '9')
1390 ppc_cpu |= PPC_OPCODE_COMMON | PPC_OPCODE_32;
1391 else if (strncmp (default_os, "aix3", 4) == 0)
1392 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1393 else if (strcmp (default_cpu, "rs6000") == 0)
1394 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1395 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1396 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
1398 as_fatal (_("Unknown default cpu = %s, os = %s"),
1399 default_cpu, default_os);
1403 /* Figure out the BFD architecture to use. This function and ppc_mach
1404 are called well before md_begin, when the output file is opened. */
1406 enum bfd_architecture
1409 const char *default_cpu = TARGET_CPU;
1412 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1413 return bfd_arch_powerpc;
1414 else if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1415 return bfd_arch_rs6000;
1416 else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1418 if (strcmp (default_cpu, "rs6000") == 0)
1419 return bfd_arch_rs6000;
1420 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1421 return bfd_arch_powerpc;
1424 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1425 return bfd_arch_unknown;
1432 return bfd_mach_ppc64;
1433 else if (ppc_arch () == bfd_arch_rs6000)
1434 return bfd_mach_rs6k;
1436 return bfd_mach_ppc;
1440 ppc_target_format (void)
1444 return target_big_endian ? "pe-powerpc" : "pe-powerpcle";
1446 return "xcoff-powermac";
1449 return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000");
1451 return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000");
1457 return "elf32-powerpc-vxworks";
1459 return (target_big_endian
1460 ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc")
1461 : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle"));
1466 /* Insert opcodes and macros into hash tables. Called at startup and
1470 ppc_setup_opcodes (void)
1472 const struct powerpc_opcode *op;
1473 const struct powerpc_opcode *op_end;
1474 const struct powerpc_macro *macro;
1475 const struct powerpc_macro *macro_end;
1476 bfd_boolean bad_insn = FALSE;
1478 if (ppc_hash != NULL)
1479 hash_die (ppc_hash);
1480 if (ppc_macro_hash != NULL)
1481 hash_die (ppc_macro_hash);
1483 /* Insert the opcodes into a hash table. */
1484 ppc_hash = hash_new ();
1486 if (ENABLE_CHECKING)
1490 /* Check operand masks. Code here and in the disassembler assumes
1491 all the 1's in the mask are contiguous. */
1492 for (i = 0; i < num_powerpc_operands; ++i)
1494 unsigned long mask = powerpc_operands[i].bitm;
1495 unsigned long right_bit;
1498 right_bit = mask & -mask;
1500 right_bit = mask & -mask;
1501 if (mask != right_bit)
1503 as_bad (_("powerpc_operands[%d].bitm invalid"), i);
1506 for (j = i + 1; j < num_powerpc_operands; ++j)
1507 if (memcmp (&powerpc_operands[i], &powerpc_operands[j],
1508 sizeof (powerpc_operands[0])) == 0)
1510 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1517 op_end = powerpc_opcodes + powerpc_num_opcodes;
1518 for (op = powerpc_opcodes; op < op_end; op++)
1520 if (ENABLE_CHECKING)
1522 const unsigned char *o;
1523 unsigned long omask = op->mask;
1525 if (op != powerpc_opcodes)
1527 /* The major opcodes had better be sorted. Code in the
1528 disassembler assumes the insns are sorted according to
1530 if (PPC_OP (op[0].opcode) < PPC_OP (op[-1].opcode))
1532 as_bad (_("major opcode is not sorted for %s"),
1537 /* Warn if the table isn't more strictly ordered.
1538 Unfortunately it doesn't seem possible to order the
1539 table on much more than the major opcode, which makes
1540 it difficult to implement a binary search in the
1541 disassembler. The problem is that we have multiple
1542 ways to disassemble instructions, and we usually want
1543 to choose a more specific form (with more bits set in
1544 the opcode) than a more general form. eg. all of the
1545 following are equivalent:
1546 bne label # opcode = 0x40820000, mask = 0xff830003
1547 bf 2,label # opcode = 0x40800000, mask = 0xff800003
1548 bc 4,2,label # opcode = 0x40000000, mask = 0xfc000003
1550 There are also cases where the table needs to be out
1551 of order to disassemble the correct instruction for
1552 processor variants. */
1555 unsigned long t1 = op[0].opcode;
1556 unsigned long t2 = op[-1].opcode;
1558 if (((t1 ^ t2) & 0xfc0007ff) == 0
1559 && (t1 & 0xfc0006df) == 0x7c000286)
1561 /* spr field is split. */
1562 t1 = ((t1 & ~0x1ff800)
1563 | ((t1 & 0xf800) << 5) | ((t1 & 0x1f0000) >> 5));
1564 t2 = ((t2 & ~0x1ff800)
1565 | ((t2 & 0xf800) << 5) | ((t2 & 0x1f0000) >> 5));
1568 as_warn (_("%s (%08lx %08lx) after %s (%08lx %08lx)"),
1569 op[0].name, op[0].opcode, op[0].mask,
1570 op[-1].name, op[-1].opcode, op[-1].mask);
1574 /* The mask had better not trim off opcode bits. */
1575 if ((op->opcode & omask) != op->opcode)
1577 as_bad (_("mask trims opcode bits for %s"),
1582 /* The operands must not overlap the opcode or each other. */
1583 for (o = op->operands; *o; ++o)
1584 if (*o >= num_powerpc_operands)
1586 as_bad (_("operand index error for %s"),
1592 const struct powerpc_operand *operand = &powerpc_operands[*o];
1593 if (operand->shift >= 0)
1595 unsigned long mask = operand->bitm << operand->shift;
1598 as_bad (_("operand %d overlap in %s"),
1599 (int) (o - op->operands), op->name);
1607 if ((op->flags & ppc_cpu & ~(PPC_OPCODE_32 | PPC_OPCODE_64)) != 0
1608 && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0
1609 || ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64))
1610 == (ppc_cpu & (PPC_OPCODE_32 | PPC_OPCODE_64)))
1611 || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0)
1612 && !(ppc_cpu & op->deprecated))
1616 retval = hash_insert (ppc_hash, op->name, (void *) op);
1619 /* Ignore Power duplicates for -m601. */
1620 if ((ppc_cpu & PPC_OPCODE_601) != 0
1621 && (op->flags & PPC_OPCODE_POWER) != 0)
1624 as_bad (_("duplicate instruction %s"),
1631 if ((ppc_cpu & PPC_OPCODE_ANY) != 0)
1632 for (op = powerpc_opcodes; op < op_end; op++)
1633 hash_insert (ppc_hash, op->name, (void *) op);
1635 /* Insert the macros into a hash table. */
1636 ppc_macro_hash = hash_new ();
1638 macro_end = powerpc_macros + powerpc_num_macros;
1639 for (macro = powerpc_macros; macro < macro_end; macro++)
1641 if ((macro->flags & ppc_cpu) != 0)
1645 retval = hash_insert (ppc_macro_hash, macro->name, (void *) macro);
1646 if (retval != (const char *) NULL)
1648 as_bad (_("duplicate macro %s"), macro->name);
1658 /* This function is called when the assembler starts up. It is called
1659 after the options have been parsed and the output file has been
1667 ppc_cie_data_alignment = ppc_obj64 ? -8 : -4;
1670 /* Set the ELF flags if desired. */
1671 if (ppc_flags && !msolaris)
1672 bfd_set_private_flags (stdoutput, ppc_flags);
1675 ppc_setup_opcodes ();
1677 /* Tell the main code what the endianness is if it is not overridden
1679 if (!set_target_endian)
1681 set_target_endian = 1;
1682 target_big_endian = PPC_BIG_ENDIAN;
1686 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1688 /* Create dummy symbols to serve as initial csects. This forces the
1689 text csects to precede the data csects. These symbols will not
1691 ppc_text_csects = symbol_make ("dummy\001");
1692 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
1693 ppc_data_csects = symbol_make ("dummy\001");
1694 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
1699 ppc_current_section = text_section;
1700 ppc_previous_section = 0;
1709 if (ppc_apuinfo_list == NULL)
1712 /* Ok, so write the section info out. We have this layout:
1716 0 8 length of "APUinfo\0"
1717 4 (n*4) number of APU's (4 bytes each)
1720 20 APU#1 first APU's info
1721 24 APU#2 second APU's info
1726 asection *seg = now_seg;
1727 subsegT subseg = now_subseg;
1728 asection *apuinfo_secp = (asection *) NULL;
1731 /* Create the .PPC.EMB.apuinfo section. */
1732 apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0);
1733 bfd_set_section_flags (stdoutput,
1735 SEC_HAS_CONTENTS | SEC_READONLY);
1738 md_number_to_chars (p, (valueT) 8, 4);
1741 md_number_to_chars (p, (valueT) ppc_apuinfo_num * 4, 4);
1744 md_number_to_chars (p, (valueT) 2, 4);
1747 strcpy (p, "APUinfo");
1749 for (i = 0; i < ppc_apuinfo_num; i++)
1752 md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4);
1755 frag_align (2, 0, 0);
1757 /* We probably can't restore the current segment, for there likely
1760 subseg_set (seg, subseg);
1765 /* Insert an operand value into an instruction. */
1767 static unsigned long
1768 ppc_insert_operand (unsigned long insn,
1769 const struct powerpc_operand *operand,
1775 long min, max, right;
1777 max = operand->bitm;
1781 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1783 if ((operand->flags & PPC_OPERAND_SIGNOPT) == 0)
1784 max = (max >> 1) & -right;
1785 min = ~max & -right;
1788 if ((operand->flags & PPC_OPERAND_PLUS1) != 0)
1791 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1800 /* Some people write constants with the sign extension done by
1801 hand but only up to 32 bits. This shouldn't really be valid,
1802 but, to permit this code to assemble on a 64-bit host, we
1803 sign extend the 32-bit value to 64 bits if so doing makes the
1806 && (offsetT) (val - 0x80000000 - 0x80000000) >= min
1807 && (offsetT) (val - 0x80000000 - 0x80000000) <= max
1808 && ((val - 0x80000000 - 0x80000000) & (right - 1)) == 0)
1809 val = val - 0x80000000 - 0x80000000;
1811 /* Similarly, people write expressions like ~(1<<15), and expect
1812 this to be OK for a 32-bit unsigned value. */
1814 && (offsetT) (val + 0x80000000 + 0x80000000) >= min
1815 && (offsetT) (val + 0x80000000 + 0x80000000) <= max
1816 && ((val + 0x80000000 + 0x80000000) & (right - 1)) == 0)
1817 val = val + 0x80000000 + 0x80000000;
1821 || (val & (right - 1)) != 0)
1822 as_bad_value_out_of_range (_("operand"), val, min, max, file, line);
1825 if (operand->insert)
1830 insn = (*operand->insert) (insn, (long) val, ppc_cpu, &errmsg);
1831 if (errmsg != (const char *) NULL)
1832 as_bad_where (file, line, "%s", errmsg);
1835 insn |= ((long) val & operand->bitm) << operand->shift;
1842 /* Parse @got, etc. and return the desired relocation. */
1843 static bfd_reloc_code_real_type
1844 ppc_elf_suffix (char **str_p, expressionS *exp_p)
1848 unsigned int length : 8;
1849 unsigned int valid32 : 1;
1850 unsigned int valid64 : 1;
1859 const struct map_bfd *ptr;
1861 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1862 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1863 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1865 static const struct map_bfd mapping[] = {
1866 MAP ("l", BFD_RELOC_LO16),
1867 MAP ("h", BFD_RELOC_HI16),
1868 MAP ("ha", BFD_RELOC_HI16_S),
1869 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN),
1870 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN),
1871 MAP ("got", BFD_RELOC_16_GOTOFF),
1872 MAP ("got@l", BFD_RELOC_LO16_GOTOFF),
1873 MAP ("got@h", BFD_RELOC_HI16_GOTOFF),
1874 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF),
1875 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF),
1876 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF),
1877 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF),
1878 MAP ("copy", BFD_RELOC_PPC_COPY),
1879 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT),
1880 MAP ("sectoff", BFD_RELOC_16_BASEREL),
1881 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL),
1882 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL),
1883 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL),
1884 MAP ("tls", BFD_RELOC_PPC_TLS),
1885 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD),
1886 MAP ("dtprel", BFD_RELOC_PPC_DTPREL),
1887 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO),
1888 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI),
1889 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA),
1890 MAP ("tprel", BFD_RELOC_PPC_TPREL),
1891 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO),
1892 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI),
1893 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA),
1894 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16),
1895 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO),
1896 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI),
1897 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA),
1898 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16),
1899 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO),
1900 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI),
1901 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA),
1902 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16),
1903 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO),
1904 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI),
1905 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA),
1906 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16),
1907 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO),
1908 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI),
1909 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA),
1910 MAP32 ("fixup", BFD_RELOC_CTOR),
1911 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL),
1912 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL),
1913 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC),
1914 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC),
1915 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL),
1916 MAP32 ("sdarel", BFD_RELOC_GPREL16),
1917 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32),
1918 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16),
1919 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO),
1920 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI),
1921 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA),
1922 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16),
1923 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL),
1924 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16),
1925 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21),
1926 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF),
1927 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16),
1928 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO),
1929 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI),
1930 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA),
1931 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD),
1932 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA),
1933 MAP32 ("xgot", BFD_RELOC_PPC_TOC16),
1934 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER),
1935 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S),
1936 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST),
1937 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S),
1938 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC),
1939 MAP64 ("toc", BFD_RELOC_PPC_TOC16),
1940 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO),
1941 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI),
1942 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA),
1943 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER),
1944 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA),
1945 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST),
1946 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA),
1947 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER),
1948 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA),
1949 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST),
1950 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA),
1951 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED }
1955 return BFD_RELOC_UNUSED;
1957 for (ch = *str, str2 = ident;
1958 (str2 < ident + sizeof (ident) - 1
1959 && (ISALNUM (ch) || ch == '@'));
1962 *str2++ = TOLOWER (ch);
1969 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
1970 if (ch == ptr->string[0]
1971 && len == ptr->length
1972 && memcmp (ident, ptr->string, ptr->length) == 0
1973 && (ppc_obj64 ? ptr->valid64 : ptr->valid32))
1975 int reloc = ptr->reloc;
1977 if (!ppc_obj64 && exp_p->X_add_number != 0)
1981 case BFD_RELOC_16_GOTOFF:
1982 case BFD_RELOC_LO16_GOTOFF:
1983 case BFD_RELOC_HI16_GOTOFF:
1984 case BFD_RELOC_HI16_S_GOTOFF:
1985 as_warn (_("identifier+constant@got means "
1986 "identifier@got+constant"));
1989 case BFD_RELOC_PPC_GOT_TLSGD16:
1990 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
1991 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
1992 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
1993 case BFD_RELOC_PPC_GOT_TLSLD16:
1994 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
1995 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
1996 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
1997 case BFD_RELOC_PPC_GOT_DTPREL16:
1998 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
1999 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
2000 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
2001 case BFD_RELOC_PPC_GOT_TPREL16:
2002 case BFD_RELOC_PPC_GOT_TPREL16_LO:
2003 case BFD_RELOC_PPC_GOT_TPREL16_HI:
2004 case BFD_RELOC_PPC_GOT_TPREL16_HA:
2005 as_bad (_("symbol+offset not supported for got tls"));
2010 /* Now check for identifier@suffix+constant. */
2011 if (*str == '-' || *str == '+')
2013 char *orig_line = input_line_pointer;
2014 expressionS new_exp;
2016 input_line_pointer = str;
2017 expression (&new_exp);
2018 if (new_exp.X_op == O_constant)
2020 exp_p->X_add_number += new_exp.X_add_number;
2021 str = input_line_pointer;
2024 if (&input_line_pointer != str_p)
2025 input_line_pointer = orig_line;
2029 if (reloc == (int) BFD_RELOC_PPC64_TOC
2030 && exp_p->X_op == O_symbol
2031 && strcmp (S_GET_NAME (exp_p->X_add_symbol), ".TOC.") == 0)
2033 /* Change the symbol so that the dummy .TOC. symbol can be
2034 omitted from the object file. */
2035 exp_p->X_add_symbol = &abs_symbol;
2038 return (bfd_reloc_code_real_type) reloc;
2041 return BFD_RELOC_UNUSED;
2044 /* Like normal .long/.short/.word, except support @got, etc.
2045 Clobbers input_line_pointer, checks end-of-line. */
2047 ppc_elf_cons (int nbytes /* 1=.byte, 2=.word, 4=.long, 8=.llong */)
2050 bfd_reloc_code_real_type reloc;
2052 if (is_it_end_of_statement ())
2054 demand_empty_rest_of_line ();
2061 if (exp.X_op == O_symbol
2062 && *input_line_pointer == '@'
2063 && (reloc = ppc_elf_suffix (&input_line_pointer,
2064 &exp)) != BFD_RELOC_UNUSED)
2066 reloc_howto_type *reloc_howto;
2069 reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
2070 size = bfd_get_reloc_size (reloc_howto);
2074 as_bad (_("%s relocations do not fit in %d bytes\n"),
2075 reloc_howto->name, nbytes);
2082 p = frag_more (nbytes);
2084 if (target_big_endian)
2085 offset = nbytes - size;
2086 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
2091 emit_expr (&exp, (unsigned int) nbytes);
2093 while (*input_line_pointer++ == ',');
2095 /* Put terminator back into stream. */
2096 input_line_pointer--;
2097 demand_empty_rest_of_line ();
2100 /* Solaris pseduo op to change to the .rodata section. */
2102 ppc_elf_rdata (int xxx)
2104 char *save_line = input_line_pointer;
2105 static char section[] = ".rodata\n";
2107 /* Just pretend this is .section .rodata */
2108 input_line_pointer = section;
2109 obj_elf_section (xxx);
2111 input_line_pointer = save_line;
2114 /* Pseudo op to make file scope bss items. */
2116 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED)
2129 name = input_line_pointer;
2130 c = get_symbol_end ();
2132 /* just after name is now '\0'. */
2133 p = input_line_pointer;
2136 if (*input_line_pointer != ',')
2138 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
2139 ignore_rest_of_line ();
2143 input_line_pointer++; /* skip ',' */
2144 if ((size = get_absolute_expression ()) < 0)
2146 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
2147 ignore_rest_of_line ();
2151 /* The third argument to .lcomm is the alignment. */
2152 if (*input_line_pointer != ',')
2156 ++input_line_pointer;
2157 align = get_absolute_expression ();
2160 as_warn (_("ignoring bad alignment"));
2166 symbolP = symbol_find_or_make (name);
2169 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
2171 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
2172 S_GET_NAME (symbolP));
2173 ignore_rest_of_line ();
2177 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
2179 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
2180 S_GET_NAME (symbolP),
2181 (long) S_GET_VALUE (symbolP),
2184 ignore_rest_of_line ();
2190 old_subsec = now_subseg;
2193 /* Convert to a power of 2 alignment. */
2194 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
2197 as_bad (_("Common alignment not a power of 2"));
2198 ignore_rest_of_line ();
2205 record_alignment (bss_section, align2);
2206 subseg_set (bss_section, 0);
2208 frag_align (align2, 0, 0);
2209 if (S_GET_SEGMENT (symbolP) == bss_section)
2210 symbol_get_frag (symbolP)->fr_symbol = 0;
2211 symbol_set_frag (symbolP, frag_now);
2212 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
2215 S_SET_SIZE (symbolP, size);
2216 S_SET_SEGMENT (symbolP, bss_section);
2217 subseg_set (old_sec, old_subsec);
2218 demand_empty_rest_of_line ();
2221 /* Validate any relocations emitted for -mrelocatable, possibly adding
2222 fixups for word relocations in writable segments, so we can adjust
2225 ppc_elf_validate_fix (fixS *fixp, segT seg)
2227 if (fixp->fx_done || fixp->fx_pcrel)
2236 case SHLIB_MRELOCATABLE:
2237 if (fixp->fx_r_type <= BFD_RELOC_UNUSED
2238 && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
2239 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
2240 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
2241 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
2242 && fixp->fx_r_type != BFD_RELOC_16_BASEREL
2243 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
2244 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
2245 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
2246 && (seg->flags & SEC_LOAD) != 0
2247 && strcmp (segment_name (seg), ".got2") != 0
2248 && strcmp (segment_name (seg), ".dtors") != 0
2249 && strcmp (segment_name (seg), ".ctors") != 0
2250 && strcmp (segment_name (seg), ".fixup") != 0
2251 && strcmp (segment_name (seg), ".gcc_except_table") != 0
2252 && strcmp (segment_name (seg), ".eh_frame") != 0
2253 && strcmp (segment_name (seg), ".ex_shared") != 0)
2255 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
2256 || fixp->fx_r_type != BFD_RELOC_CTOR)
2258 as_bad_where (fixp->fx_file, fixp->fx_line,
2259 _("Relocation cannot be done when using -mrelocatable"));
2266 /* Prevent elf_frob_file_before_adjust removing a weak undefined
2267 function descriptor sym if the corresponding code sym is used. */
2270 ppc_frob_file_before_adjust (void)
2278 for (symp = symbol_rootP; symp; symp = symbol_next (symp))
2285 name = S_GET_NAME (symp);
2289 if (! S_IS_WEAK (symp)
2290 || S_IS_DEFINED (symp))
2293 len = strlen (name) + 1;
2294 dotname = xmalloc (len + 1);
2296 memcpy (dotname + 1, name, len);
2297 dotsym = symbol_find_noref (dotname, 1);
2299 if (dotsym != NULL && (symbol_used_p (dotsym)
2300 || symbol_used_in_reloc_p (dotsym)))
2301 symbol_mark_used (symp);
2305 toc = bfd_get_section_by_name (stdoutput, ".toc");
2307 && bfd_section_size (stdoutput, toc) > 0x10000)
2308 as_warn (_("TOC section size exceeds 64k"));
2310 /* Don't emit .TOC. symbol. */
2311 symp = symbol_find (".TOC.");
2313 symbol_remove (symp, &symbol_rootP, &symbol_lastP);
2315 #endif /* OBJ_ELF */
2320 * Summary of parse_toc_entry.
2322 * in: Input_line_pointer points to the '[' in one of:
2324 * [toc] [tocv] [toc32] [toc64]
2326 * Anything else is an error of one kind or another.
2329 * return value: success or failure
2330 * toc_kind: kind of toc reference
2331 * input_line_pointer:
2332 * success: first char after the ']'
2333 * failure: unchanged
2337 * [toc] - rv == success, toc_kind = default_toc
2338 * [tocv] - rv == success, toc_kind = data_in_toc
2339 * [toc32] - rv == success, toc_kind = must_be_32
2340 * [toc64] - rv == success, toc_kind = must_be_64
2344 enum toc_size_qualifier
2346 default_toc, /* The toc cell constructed should be the system default size */
2347 data_in_toc, /* This is a direct reference to a toc cell */
2348 must_be_32, /* The toc cell constructed must be 32 bits wide */
2349 must_be_64 /* The toc cell constructed must be 64 bits wide */
2353 parse_toc_entry (enum toc_size_qualifier *toc_kind)
2358 enum toc_size_qualifier t;
2360 /* Save the input_line_pointer. */
2361 start = input_line_pointer;
2363 /* Skip over the '[' , and whitespace. */
2364 ++input_line_pointer;
2367 /* Find the spelling of the operand. */
2368 toc_spec = input_line_pointer;
2369 c = get_symbol_end ();
2371 if (strcmp (toc_spec, "toc") == 0)
2375 else if (strcmp (toc_spec, "tocv") == 0)
2379 else if (strcmp (toc_spec, "toc32") == 0)
2383 else if (strcmp (toc_spec, "toc64") == 0)
2389 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
2390 *input_line_pointer = c;
2391 input_line_pointer = start;
2395 /* Now find the ']'. */
2396 *input_line_pointer = c;
2398 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2399 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
2403 as_bad (_("syntax error: expected `]', found `%c'"), c);
2404 input_line_pointer = start;
2415 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2417 ppc_apuinfo_section_add (unsigned int apu, unsigned int version)
2421 /* Check we don't already exist. */
2422 for (i = 0; i < ppc_apuinfo_num; i++)
2423 if (ppc_apuinfo_list[i] == APUID (apu, version))
2426 if (ppc_apuinfo_num == ppc_apuinfo_num_alloc)
2428 if (ppc_apuinfo_num_alloc == 0)
2430 ppc_apuinfo_num_alloc = 4;
2431 ppc_apuinfo_list = (unsigned long *)
2432 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2436 ppc_apuinfo_num_alloc += 4;
2437 ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list,
2438 sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2441 ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version);
2447 /* We need to keep a list of fixups. We can't simply generate them as
2448 we go, because that would require us to first create the frag, and
2449 that would screw up references to ``.''. */
2455 bfd_reloc_code_real_type reloc;
2458 #define MAX_INSN_FIXUPS (5)
2460 /* This routine is called for each instruction to be assembled. */
2463 md_assemble (char *str)
2466 const struct powerpc_opcode *opcode;
2468 const unsigned char *opindex_ptr;
2472 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
2478 bfd_reloc_code_real_type reloc;
2481 /* Get the opcode. */
2482 for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
2487 /* Look up the opcode in the hash table. */
2488 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
2489 if (opcode == (const struct powerpc_opcode *) NULL)
2491 const struct powerpc_macro *macro;
2493 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
2494 if (macro == (const struct powerpc_macro *) NULL)
2495 as_bad (_("Unrecognized opcode: `%s'"), str);
2497 ppc_macro (s, macro);
2502 insn = opcode->opcode;
2505 while (ISSPACE (*str))
2508 /* PowerPC operands are just expressions. The only real issue is
2509 that a few operand types are optional. All cases which might use
2510 an optional operand separate the operands only with commas (in some
2511 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2512 have optional operands). Most instructions with optional operands
2513 have only one. Those that have more than one optional operand can
2514 take either all their operands or none. So, before we start seriously
2515 parsing the operands, we check to see if we have optional operands,
2516 and if we do, we count the number of commas to see which operands
2517 have been omitted. */
2519 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2521 const struct powerpc_operand *operand;
2523 operand = &powerpc_operands[*opindex_ptr];
2524 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
2526 unsigned int opcount;
2527 unsigned int num_operands_expected;
2530 /* There is an optional operand. Count the number of
2531 commas in the input line. */
2538 while ((s = strchr (s, ',')) != (char *) NULL)
2545 /* Compute the number of expected operands.
2546 Do not count fake operands. */
2547 for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++)
2548 if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0)
2549 ++ num_operands_expected;
2551 /* If there are fewer operands in the line then are called
2552 for by the instruction, we want to skip the optional
2554 if (opcount < num_operands_expected)
2561 /* Gather the operands. */
2565 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2567 const struct powerpc_operand *operand;
2573 if (next_opindex == 0)
2574 operand = &powerpc_operands[*opindex_ptr];
2577 operand = &powerpc_operands[next_opindex];
2582 /* If this is a fake operand, then we do not expect anything
2584 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
2586 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2587 if (errmsg != (const char *) NULL)
2588 as_bad ("%s", errmsg);
2592 /* If this is an optional operand, and we are skipping it, just
2594 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
2597 if (operand->insert)
2599 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2600 if (errmsg != (const char *) NULL)
2601 as_bad ("%s", errmsg);
2603 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
2604 next_opindex = *opindex_ptr + 1;
2608 /* Gather the operand. */
2609 hold = input_line_pointer;
2610 input_line_pointer = str;
2613 if (*input_line_pointer == '[')
2615 /* We are expecting something like the second argument here:
2617 * lwz r4,[toc].GS.0.static_int(rtoc)
2618 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2619 * The argument following the `]' must be a symbol name, and the
2620 * register must be the toc register: 'rtoc' or '2'
2622 * The effect is to 0 as the displacement field
2623 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2624 * the appropriate variation) reloc against it based on the symbol.
2625 * The linker will build the toc, and insert the resolved toc offset.
2628 * o The size of the toc entry is currently assumed to be
2629 * 32 bits. This should not be assumed to be a hard coded
2631 * o In an effort to cope with a change from 32 to 64 bits,
2632 * there are also toc entries that are specified to be
2633 * either 32 or 64 bits:
2634 * lwz r4,[toc32].GS.0.static_int(rtoc)
2635 * lwz r4,[toc64].GS.0.static_int(rtoc)
2636 * These demand toc entries of the specified size, and the
2637 * instruction probably requires it.
2641 enum toc_size_qualifier toc_kind;
2642 bfd_reloc_code_real_type toc_reloc;
2644 /* Go parse off the [tocXX] part. */
2645 valid_toc = parse_toc_entry (&toc_kind);
2649 /* Note: message has already been issued.
2650 FIXME: what sort of recovery should we do?
2651 demand_rest_of_line (); return; ? */
2654 /* Now get the symbol following the ']'. */
2660 /* In this case, we may not have seen the symbol yet,
2661 since it is allowed to appear on a .extern or .globl
2662 or just be a label in the .data section. */
2663 toc_reloc = BFD_RELOC_PPC_TOC16;
2666 /* 1. The symbol must be defined and either in the toc
2667 section, or a global.
2668 2. The reloc generated must have the TOCDEFN flag set
2669 in upper bit mess of the reloc type.
2670 FIXME: It's a little confusing what the tocv
2671 qualifier can be used for. At the very least, I've
2672 seen three uses, only one of which I'm sure I can
2674 if (ex.X_op == O_symbol)
2676 assert (ex.X_add_symbol != NULL);
2677 if (symbol_get_bfdsym (ex.X_add_symbol)->section
2680 as_bad (_("[tocv] symbol is not a toc symbol"));
2684 toc_reloc = BFD_RELOC_PPC_TOC16;
2687 /* FIXME: these next two specifically specify 32/64 bit
2688 toc entries. We don't support them today. Is this
2689 the right way to say that? */
2690 toc_reloc = BFD_RELOC_UNUSED;
2691 as_bad (_("Unimplemented toc32 expression modifier"));
2694 /* FIXME: see above. */
2695 toc_reloc = BFD_RELOC_UNUSED;
2696 as_bad (_("Unimplemented toc64 expression modifier"));
2700 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2706 /* We need to generate a fixup for this expression. */
2707 if (fc >= MAX_INSN_FIXUPS)
2708 as_fatal (_("too many fixups"));
2710 fixups[fc].reloc = toc_reloc;
2711 fixups[fc].exp = ex;
2712 fixups[fc].opindex = *opindex_ptr;
2715 /* Ok. We've set up the fixup for the instruction. Now make it
2716 look like the constant 0 was found here. */
2718 ex.X_op = O_constant;
2719 ex.X_add_number = 0;
2720 ex.X_add_symbol = NULL;
2721 ex.X_op_symbol = NULL;
2727 if ((reg_names_p && (operand->flags & PPC_OPERAND_CR) != 0)
2728 || !register_name (&ex))
2730 char save_lex = lex_type['%'];
2732 if ((operand->flags & PPC_OPERAND_CR) != 0)
2735 lex_type['%'] |= LEX_BEGIN_NAME;
2739 lex_type['%'] = save_lex;
2743 str = input_line_pointer;
2744 input_line_pointer = hold;
2746 if (ex.X_op == O_illegal)
2747 as_bad (_("illegal operand"));
2748 else if (ex.X_op == O_absent)
2749 as_bad (_("missing operand"));
2750 else if (ex.X_op == O_register)
2752 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2753 ppc_cpu, (char *) NULL, 0);
2755 else if (ex.X_op == O_constant)
2758 /* Allow @HA, @L, @H on constants. */
2759 char *orig_str = str;
2761 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2768 case BFD_RELOC_LO16:
2769 /* X_unsigned is the default, so if the user has done
2770 something which cleared it, we always produce a
2772 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2773 ex.X_add_number &= 0xffff;
2775 ex.X_add_number = SEX16 (ex.X_add_number);
2778 case BFD_RELOC_HI16:
2779 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2780 ex.X_add_number = PPC_HI (ex.X_add_number);
2782 ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number));
2785 case BFD_RELOC_HI16_S:
2786 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2787 ex.X_add_number = PPC_HA (ex.X_add_number);
2789 ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number));
2792 case BFD_RELOC_PPC64_HIGHER:
2793 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2794 ex.X_add_number = PPC_HIGHER (ex.X_add_number);
2796 ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number));
2799 case BFD_RELOC_PPC64_HIGHER_S:
2800 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2801 ex.X_add_number = PPC_HIGHERA (ex.X_add_number);
2803 ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number));
2806 case BFD_RELOC_PPC64_HIGHEST:
2807 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2808 ex.X_add_number = PPC_HIGHEST (ex.X_add_number);
2810 ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number));
2813 case BFD_RELOC_PPC64_HIGHEST_S:
2814 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2815 ex.X_add_number = PPC_HIGHESTA (ex.X_add_number);
2817 ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number));
2820 #endif /* OBJ_ELF */
2821 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2822 ppc_cpu, (char *) NULL, 0);
2827 if (ex.X_op == O_symbol && str[0] == '(')
2829 const char *sym_name = S_GET_NAME (ex.X_add_symbol);
2830 if (sym_name[0] == '.')
2833 if (strcasecmp (sym_name, "__tls_get_addr") == 0)
2835 expressionS tls_exp;
2837 hold = input_line_pointer;
2838 input_line_pointer = str + 1;
2839 expression (&tls_exp);
2840 if (tls_exp.X_op == O_symbol)
2842 reloc = BFD_RELOC_UNUSED;
2843 if (strncasecmp (input_line_pointer, "@tlsgd)", 7) == 0)
2845 reloc = BFD_RELOC_PPC_TLSGD;
2846 input_line_pointer += 7;
2848 else if (strncasecmp (input_line_pointer, "@tlsld)", 7) == 0)
2850 reloc = BFD_RELOC_PPC_TLSLD;
2851 input_line_pointer += 7;
2853 if (reloc != BFD_RELOC_UNUSED)
2856 str = input_line_pointer;
2858 if (fc >= MAX_INSN_FIXUPS)
2859 as_fatal (_("too many fixups"));
2860 fixups[fc].exp = tls_exp;
2861 fixups[fc].opindex = *opindex_ptr;
2862 fixups[fc].reloc = reloc;
2866 input_line_pointer = hold;
2870 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2872 /* Some TLS tweaks. */
2878 case BFD_RELOC_PPC_TLS:
2879 insn = ppc_insert_operand (insn, operand, ppc_obj64 ? 13 : 2,
2880 ppc_cpu, (char *) NULL, 0);
2883 /* We'll only use the 32 (or 64) bit form of these relocations
2884 in constants. Instructions get the 16 bit form. */
2885 case BFD_RELOC_PPC_DTPREL:
2886 reloc = BFD_RELOC_PPC_DTPREL16;
2888 case BFD_RELOC_PPC_TPREL:
2889 reloc = BFD_RELOC_PPC_TPREL16;
2893 /* For the absolute forms of branches, convert the PC
2894 relative form back into the absolute. */
2895 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
2899 case BFD_RELOC_PPC_B26:
2900 reloc = BFD_RELOC_PPC_BA26;
2902 case BFD_RELOC_PPC_B16:
2903 reloc = BFD_RELOC_PPC_BA16;
2905 case BFD_RELOC_PPC_B16_BRTAKEN:
2906 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
2908 case BFD_RELOC_PPC_B16_BRNTAKEN:
2909 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
2917 && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0)
2922 reloc = BFD_RELOC_PPC64_ADDR16_DS;
2924 case BFD_RELOC_LO16:
2925 reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
2927 case BFD_RELOC_16_GOTOFF:
2928 reloc = BFD_RELOC_PPC64_GOT16_DS;
2930 case BFD_RELOC_LO16_GOTOFF:
2931 reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
2933 case BFD_RELOC_LO16_PLTOFF:
2934 reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
2936 case BFD_RELOC_16_BASEREL:
2937 reloc = BFD_RELOC_PPC64_SECTOFF_DS;
2939 case BFD_RELOC_LO16_BASEREL:
2940 reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
2942 case BFD_RELOC_PPC_TOC16:
2943 reloc = BFD_RELOC_PPC64_TOC16_DS;
2945 case BFD_RELOC_PPC64_TOC16_LO:
2946 reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
2948 case BFD_RELOC_PPC64_PLTGOT16:
2949 reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
2951 case BFD_RELOC_PPC64_PLTGOT16_LO:
2952 reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
2954 case BFD_RELOC_PPC_DTPREL16:
2955 reloc = BFD_RELOC_PPC64_DTPREL16_DS;
2957 case BFD_RELOC_PPC_DTPREL16_LO:
2958 reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS;
2960 case BFD_RELOC_PPC_TPREL16:
2961 reloc = BFD_RELOC_PPC64_TPREL16_DS;
2963 case BFD_RELOC_PPC_TPREL16_LO:
2964 reloc = BFD_RELOC_PPC64_TPREL16_LO_DS;
2966 case BFD_RELOC_PPC_GOT_DTPREL16:
2967 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
2968 case BFD_RELOC_PPC_GOT_TPREL16:
2969 case BFD_RELOC_PPC_GOT_TPREL16_LO:
2972 as_bad (_("unsupported relocation for DS offset field"));
2978 /* We need to generate a fixup for this expression. */
2979 if (fc >= MAX_INSN_FIXUPS)
2980 as_fatal (_("too many fixups"));
2981 fixups[fc].exp = ex;
2982 fixups[fc].opindex = *opindex_ptr;
2983 fixups[fc].reloc = reloc;
2989 /* We need to generate a fixup for this expression. */
2990 if (fc >= MAX_INSN_FIXUPS)
2991 as_fatal (_("too many fixups"));
2992 fixups[fc].exp = ex;
2993 fixups[fc].opindex = *opindex_ptr;
2994 fixups[fc].reloc = BFD_RELOC_UNUSED;
2997 #endif /* OBJ_ELF */
3003 /* If expecting more operands, then we want to see "),". */
3004 if (*str == endc && opindex_ptr[1] != 0)
3008 while (ISSPACE (*str));
3012 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
3020 /* The call to expression should have advanced str past any
3023 && (endc != ',' || *str != '\0'))
3025 as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc);
3033 while (ISSPACE (*str))
3037 as_bad (_("junk at end of line: `%s'"), str);
3040 /* Do we need/want a APUinfo section? */
3041 if ((ppc_cpu & PPC_OPCODE_E500MC) != 0)
3043 /* These are all version "1". */
3044 if (opcode->flags & PPC_OPCODE_SPE)
3045 ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1);
3046 if (opcode->flags & PPC_OPCODE_ISEL)
3047 ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1);
3048 if (opcode->flags & PPC_OPCODE_EFS)
3049 ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1);
3050 if (opcode->flags & PPC_OPCODE_BRLOCK)
3051 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1);
3052 if (opcode->flags & PPC_OPCODE_PMR)
3053 ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1);
3054 if (opcode->flags & PPC_OPCODE_CACHELCK)
3055 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1);
3056 if (opcode->flags & PPC_OPCODE_RFMCI)
3057 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1);
3061 /* Write out the instruction. */
3063 addr_mod = frag_now_fix () & 3;
3064 if (frag_now->has_code && frag_now->insn_addr != addr_mod)
3065 as_bad (_("instruction address is not a multiple of 4"));
3066 frag_now->insn_addr = addr_mod;
3067 frag_now->has_code = 1;
3068 md_number_to_chars (f, insn, 4);
3071 dwarf2_emit_insn (4);
3074 /* Create any fixups. At this point we do not use a
3075 bfd_reloc_code_real_type, but instead just use the
3076 BFD_RELOC_UNUSED plus the operand index. This lets us easily
3077 handle fixups for any operand type, although that is admittedly
3078 not a very exciting feature. We pick a BFD reloc type in
3080 for (i = 0; i < fc; i++)
3082 if (fixups[i].reloc != BFD_RELOC_UNUSED)
3084 reloc_howto_type *reloc_howto;
3089 reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
3093 size = bfd_get_reloc_size (reloc_howto);
3094 offset = target_big_endian ? (4 - size) : 0;
3096 if (size < 1 || size > 4)
3099 fixP = fix_new_exp (frag_now,
3100 f - frag_now->fr_literal + offset,
3103 reloc_howto->pc_relative,
3106 /* Turn off complaints that the addend is too large for things like
3108 switch (fixups[i].reloc)
3110 case BFD_RELOC_16_GOTOFF:
3111 case BFD_RELOC_PPC_TOC16:
3112 case BFD_RELOC_LO16:
3113 case BFD_RELOC_HI16:
3114 case BFD_RELOC_HI16_S:
3116 case BFD_RELOC_PPC64_HIGHER:
3117 case BFD_RELOC_PPC64_HIGHER_S:
3118 case BFD_RELOC_PPC64_HIGHEST:
3119 case BFD_RELOC_PPC64_HIGHEST_S:
3121 fixP->fx_no_overflow = 1;
3129 const struct powerpc_operand *operand;
3131 operand = &powerpc_operands[fixups[i].opindex];
3132 fix_new_exp (frag_now,
3133 f - frag_now->fr_literal,
3136 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
3137 ((bfd_reloc_code_real_type)
3138 (fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
3143 /* Handle a macro. Gather all the operands, transform them as
3144 described by the macro, and call md_assemble recursively. All the
3145 operands are separated by commas; we don't accept parentheses
3146 around operands here. */
3149 ppc_macro (char *str, const struct powerpc_macro *macro)
3160 /* Gather the users operands into the operands array. */
3165 if (count >= sizeof operands / sizeof operands[0])
3167 operands[count++] = s;
3168 s = strchr (s, ',');
3169 if (s == (char *) NULL)
3174 if (count != macro->operands)
3176 as_bad (_("wrong number of operands"));
3180 /* Work out how large the string must be (the size is unbounded
3181 because it includes user input). */
3183 format = macro->format;
3184 while (*format != '\0')
3193 arg = strtol (format + 1, &send, 10);
3194 know (send != format && arg < count);
3195 len += strlen (operands[arg]);
3200 /* Put the string together. */
3201 complete = s = (char *) alloca (len + 1);
3202 format = macro->format;
3203 while (*format != '\0')
3209 arg = strtol (format + 1, &send, 10);
3210 strcpy (s, operands[arg]);
3217 /* Assemble the constructed instruction. */
3218 md_assemble (complete);
3222 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
3225 ppc_section_letter (int letter, char **ptr_msg)
3230 *ptr_msg = _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
3235 ppc_section_word (char *str, size_t len)
3237 if (len == 7 && strncmp (str, "exclude", 7) == 0)
3244 ppc_section_type (char *str, size_t len)
3246 if (len == 7 && strncmp (str, "ordered", 7) == 0)
3253 ppc_section_flags (flagword flags, bfd_vma attr, int type)
3255 if (type == SHT_ORDERED)
3256 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
3258 if (attr & SHF_EXCLUDE)
3259 flags |= SEC_EXCLUDE;
3263 #endif /* OBJ_ELF */
3266 /* Pseudo-op handling. */
3268 /* The .byte pseudo-op. This is similar to the normal .byte
3269 pseudo-op, but it can also take a single ASCII string. */
3272 ppc_byte (int ignore ATTRIBUTE_UNUSED)
3274 if (*input_line_pointer != '\"')
3280 /* Gather characters. A real double quote is doubled. Unusual
3281 characters are not permitted. */
3282 ++input_line_pointer;
3287 c = *input_line_pointer++;
3291 if (*input_line_pointer != '\"')
3293 ++input_line_pointer;
3296 FRAG_APPEND_1_CHAR (c);
3299 demand_empty_rest_of_line ();
3304 /* XCOFF specific pseudo-op handling. */
3306 /* This is set if we are creating a .stabx symbol, since we don't want
3307 to handle symbol suffixes for such symbols. */
3308 static bfd_boolean ppc_stab_symbol;
3310 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
3311 symbols in the .bss segment as though they were local common
3312 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
3313 aligns .comm and .lcomm to 4 bytes. */
3316 ppc_comm (int lcomm)
3318 asection *current_seg = now_seg;
3319 subsegT current_subseg = now_subseg;
3325 symbolS *lcomm_sym = NULL;
3329 name = input_line_pointer;
3330 endc = get_symbol_end ();
3331 end_name = input_line_pointer;
3334 if (*input_line_pointer != ',')
3336 as_bad (_("missing size"));
3337 ignore_rest_of_line ();
3340 ++input_line_pointer;
3342 size = get_absolute_expression ();
3345 as_bad (_("negative size"));
3346 ignore_rest_of_line ();
3352 /* The third argument to .comm is the alignment. */
3353 if (*input_line_pointer != ',')
3357 ++input_line_pointer;
3358 align = get_absolute_expression ();
3361 as_warn (_("ignoring bad alignment"));
3376 /* The third argument to .lcomm appears to be the real local
3377 common symbol to create. References to the symbol named in
3378 the first argument are turned into references to the third
3380 if (*input_line_pointer != ',')
3382 as_bad (_("missing real symbol name"));
3383 ignore_rest_of_line ();
3386 ++input_line_pointer;
3388 lcomm_name = input_line_pointer;
3389 lcomm_endc = get_symbol_end ();
3391 lcomm_sym = symbol_find_or_make (lcomm_name);
3393 *input_line_pointer = lcomm_endc;
3397 sym = symbol_find_or_make (name);
3400 if (S_IS_DEFINED (sym)
3401 || S_GET_VALUE (sym) != 0)
3403 as_bad (_("attempt to redefine symbol"));
3404 ignore_rest_of_line ();
3408 record_alignment (bss_section, align);
3411 || ! S_IS_DEFINED (lcomm_sym))
3420 S_SET_EXTERNAL (sym);
3424 symbol_get_tc (lcomm_sym)->output = 1;
3425 def_sym = lcomm_sym;
3429 subseg_set (bss_section, 1);
3430 frag_align (align, 0, 0);
3432 symbol_set_frag (def_sym, frag_now);
3433 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
3434 def_size, (char *) NULL);
3436 S_SET_SEGMENT (def_sym, bss_section);
3437 symbol_get_tc (def_sym)->align = align;
3441 /* Align the size of lcomm_sym. */
3442 symbol_get_frag (lcomm_sym)->fr_offset =
3443 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
3444 &~ ((1 << align) - 1));
3445 if (align > symbol_get_tc (lcomm_sym)->align)
3446 symbol_get_tc (lcomm_sym)->align = align;
3451 /* Make sym an offset from lcomm_sym. */
3452 S_SET_SEGMENT (sym, bss_section);
3453 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
3454 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
3455 symbol_get_frag (lcomm_sym)->fr_offset += size;
3458 subseg_set (current_seg, current_subseg);
3460 demand_empty_rest_of_line ();
3463 /* The .csect pseudo-op. This switches us into a different
3464 subsegment. The first argument is a symbol whose value is the
3465 start of the .csect. In COFF, csect symbols get special aux
3466 entries defined by the x_csect field of union internal_auxent. The
3467 optional second argument is the alignment (the default is 2). */
3470 ppc_csect (int ignore ATTRIBUTE_UNUSED)
3477 name = input_line_pointer;
3478 endc = get_symbol_end ();
3480 sym = symbol_find_or_make (name);
3482 *input_line_pointer = endc;
3484 if (S_GET_NAME (sym)[0] == '\0')
3486 /* An unnamed csect is assumed to be [PR]. */
3487 symbol_get_tc (sym)->class = XMC_PR;
3491 if (*input_line_pointer == ',')
3493 ++input_line_pointer;
3494 align = get_absolute_expression ();
3497 ppc_change_csect (sym, align);
3499 demand_empty_rest_of_line ();
3502 /* Change to a different csect. */
3505 ppc_change_csect (symbolS *sym, offsetT align)
3507 if (S_IS_DEFINED (sym))
3508 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
3518 /* This is a new csect. We need to look at the symbol class to
3519 figure out whether it should go in the text section or the
3523 switch (symbol_get_tc (sym)->class)
3533 S_SET_SEGMENT (sym, text_section);
3534 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
3535 ++ppc_text_subsegment;
3536 list_ptr = &ppc_text_csects;
3546 if (ppc_toc_csect != NULL
3547 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
3548 == ppc_data_subsegment))
3550 S_SET_SEGMENT (sym, data_section);
3551 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
3552 ++ppc_data_subsegment;
3553 list_ptr = &ppc_data_csects;
3559 /* We set the obstack chunk size to a small value before
3560 changing subsegments, so that we don't use a lot of memory
3561 space for what may be a small section. */
3562 hold_chunksize = chunksize;
3565 sec = subseg_new (segment_name (S_GET_SEGMENT (sym)),
3566 symbol_get_tc (sym)->subseg);
3568 chunksize = hold_chunksize;
3571 ppc_after_toc_frag = frag_now;
3573 record_alignment (sec, align);
3575 frag_align_code (align, 0);
3577 frag_align (align, 0, 0);
3579 symbol_set_frag (sym, frag_now);
3580 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3582 symbol_get_tc (sym)->align = align;
3583 symbol_get_tc (sym)->output = 1;
3584 symbol_get_tc (sym)->within = sym;
3586 for (list = *list_ptr;
3587 symbol_get_tc (list)->next != (symbolS *) NULL;
3588 list = symbol_get_tc (list)->next)
3590 symbol_get_tc (list)->next = sym;
3592 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3593 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3597 ppc_current_csect = sym;
3600 /* This function handles the .text and .data pseudo-ops. These
3601 pseudo-ops aren't really used by XCOFF; we implement them for the
3602 convenience of people who aren't used to XCOFF. */
3605 ppc_section (int type)
3612 else if (type == 'd')
3617 sym = symbol_find_or_make (name);
3619 ppc_change_csect (sym, 2);
3621 demand_empty_rest_of_line ();
3624 /* This function handles the .section pseudo-op. This is mostly to
3625 give an error, since XCOFF only supports .text, .data and .bss, but
3626 we do permit the user to name the text or data section. */
3629 ppc_named_section (int ignore ATTRIBUTE_UNUSED)
3632 const char *real_name;
3636 user_name = input_line_pointer;
3637 c = get_symbol_end ();
3639 if (strcmp (user_name, ".text") == 0)
3640 real_name = ".text[PR]";
3641 else if (strcmp (user_name, ".data") == 0)
3642 real_name = ".data[RW]";
3645 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3646 *input_line_pointer = c;
3647 ignore_rest_of_line ();
3651 *input_line_pointer = c;
3653 sym = symbol_find_or_make (real_name);
3655 ppc_change_csect (sym, 2);
3657 demand_empty_rest_of_line ();
3660 /* The .extern pseudo-op. We create an undefined symbol. */
3663 ppc_extern (int ignore ATTRIBUTE_UNUSED)
3668 name = input_line_pointer;
3669 endc = get_symbol_end ();
3671 (void) symbol_find_or_make (name);
3673 *input_line_pointer = endc;
3675 demand_empty_rest_of_line ();
3678 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3681 ppc_lglobl (int ignore ATTRIBUTE_UNUSED)
3687 name = input_line_pointer;
3688 endc = get_symbol_end ();
3690 sym = symbol_find_or_make (name);
3692 *input_line_pointer = endc;
3694 symbol_get_tc (sym)->output = 1;
3696 demand_empty_rest_of_line ();
3699 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3700 although I don't know why it bothers. */
3703 ppc_rename (int ignore ATTRIBUTE_UNUSED)
3710 name = input_line_pointer;
3711 endc = get_symbol_end ();
3713 sym = symbol_find_or_make (name);
3715 *input_line_pointer = endc;
3717 if (*input_line_pointer != ',')
3719 as_bad (_("missing rename string"));
3720 ignore_rest_of_line ();
3723 ++input_line_pointer;
3725 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
3727 demand_empty_rest_of_line ();
3730 /* The .stabx pseudo-op. This is similar to a normal .stabs
3731 pseudo-op, but slightly different. A sample is
3732 .stabx "main:F-1",.main,142,0
3733 The first argument is the symbol name to create. The second is the
3734 value, and the third is the storage class. The fourth seems to be
3735 always zero, and I am assuming it is the type. */
3738 ppc_stabx (int ignore ATTRIBUTE_UNUSED)
3745 name = demand_copy_C_string (&len);
3747 if (*input_line_pointer != ',')
3749 as_bad (_("missing value"));
3752 ++input_line_pointer;
3754 ppc_stab_symbol = TRUE;
3755 sym = symbol_make (name);
3756 ppc_stab_symbol = FALSE;
3758 symbol_get_tc (sym)->real_name = name;
3760 (void) expression (&exp);
3767 as_bad (_("illegal .stabx expression; zero assumed"));
3768 exp.X_add_number = 0;
3771 S_SET_VALUE (sym, (valueT) exp.X_add_number);
3772 symbol_set_frag (sym, &zero_address_frag);
3776 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
3777 symbol_set_value_expression (sym, &exp);
3781 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
3782 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
3787 /* The value is some complex expression. This will probably
3788 fail at some later point, but this is probably the right
3789 thing to do here. */
3790 symbol_set_value_expression (sym, &exp);
3794 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3795 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3797 if (*input_line_pointer != ',')
3799 as_bad (_("missing class"));
3802 ++input_line_pointer;
3804 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
3806 if (*input_line_pointer != ',')
3808 as_bad (_("missing type"));
3811 ++input_line_pointer;
3813 S_SET_DATA_TYPE (sym, get_absolute_expression ());
3815 symbol_get_tc (sym)->output = 1;
3817 if (S_GET_STORAGE_CLASS (sym) == C_STSYM) {
3819 symbol_get_tc (sym)->within = ppc_current_block;
3824 .stabx "z",arrays_,133,0
3827 .comm arrays_,13768,3
3829 resolve_symbol_value will copy the exp's "within" into sym's when the
3830 offset is 0. Since this seems to be corner case problem,
3831 only do the correction for storage class C_STSYM. A better solution
3832 would be to have the tc field updated in ppc_symbol_new_hook. */
3834 if (exp.X_op == O_symbol)
3836 symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block;
3840 if (exp.X_op != O_symbol
3841 || ! S_IS_EXTERNAL (exp.X_add_symbol)
3842 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
3843 ppc_frob_label (sym);
3846 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3847 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
3848 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
3849 symbol_get_tc (ppc_current_csect)->within = sym;
3852 demand_empty_rest_of_line ();
3855 /* The .function pseudo-op. This takes several arguments. The first
3856 argument seems to be the external name of the symbol. The second
3857 argument seems to be the label for the start of the function. gcc
3858 uses the same name for both. I have no idea what the third and
3859 fourth arguments are meant to be. The optional fifth argument is
3860 an expression for the size of the function. In COFF this symbol
3861 gets an aux entry like that used for a csect. */
3864 ppc_function (int ignore ATTRIBUTE_UNUSED)
3872 name = input_line_pointer;
3873 endc = get_symbol_end ();
3875 /* Ignore any [PR] suffix. */
3876 name = ppc_canonicalize_symbol_name (name);
3877 s = strchr (name, '[');
3878 if (s != (char *) NULL
3879 && strcmp (s + 1, "PR]") == 0)
3882 ext_sym = symbol_find_or_make (name);
3884 *input_line_pointer = endc;
3886 if (*input_line_pointer != ',')
3888 as_bad (_("missing symbol name"));
3889 ignore_rest_of_line ();
3892 ++input_line_pointer;
3894 name = input_line_pointer;
3895 endc = get_symbol_end ();
3897 lab_sym = symbol_find_or_make (name);
3899 *input_line_pointer = endc;
3901 if (ext_sym != lab_sym)
3905 exp.X_op = O_symbol;
3906 exp.X_add_symbol = lab_sym;
3907 exp.X_op_symbol = NULL;
3908 exp.X_add_number = 0;
3910 symbol_set_value_expression (ext_sym, &exp);
3913 if (symbol_get_tc (ext_sym)->class == -1)
3914 symbol_get_tc (ext_sym)->class = XMC_PR;
3915 symbol_get_tc (ext_sym)->output = 1;
3917 if (*input_line_pointer == ',')
3921 /* Ignore the third argument. */
3922 ++input_line_pointer;
3923 expression (&ignore);
3924 if (*input_line_pointer == ',')
3926 /* Ignore the fourth argument. */
3927 ++input_line_pointer;
3928 expression (&ignore);
3929 if (*input_line_pointer == ',')
3931 /* The fifth argument is the function size. */
3932 ++input_line_pointer;
3933 symbol_get_tc (ext_sym)->size = symbol_new ("L0\001",
3936 &zero_address_frag);
3937 pseudo_set (symbol_get_tc (ext_sym)->size);
3942 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
3943 SF_SET_FUNCTION (ext_sym);
3944 SF_SET_PROCESS (ext_sym);
3945 coff_add_linesym (ext_sym);
3947 demand_empty_rest_of_line ();
3950 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3951 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3952 with the correct line number */
3954 static symbolS *saved_bi_sym = 0;
3957 ppc_bf (int ignore ATTRIBUTE_UNUSED)
3961 sym = symbol_make (".bf");
3962 S_SET_SEGMENT (sym, text_section);
3963 symbol_set_frag (sym, frag_now);
3964 S_SET_VALUE (sym, frag_now_fix ());
3965 S_SET_STORAGE_CLASS (sym, C_FCN);
3967 coff_line_base = get_absolute_expression ();
3969 S_SET_NUMBER_AUXILIARY (sym, 1);
3970 SA_SET_SYM_LNNO (sym, coff_line_base);
3972 /* Line number for bi. */
3975 S_SET_VALUE (saved_bi_sym, coff_n_line_nos);
3980 symbol_get_tc (sym)->output = 1;
3982 ppc_frob_label (sym);
3984 demand_empty_rest_of_line ();
3987 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3988 ".ef", except that the line number is absolute, not relative to the
3989 most recent ".bf" symbol. */
3992 ppc_ef (int ignore ATTRIBUTE_UNUSED)
3996 sym = symbol_make (".ef");
3997 S_SET_SEGMENT (sym, text_section);
3998 symbol_set_frag (sym, frag_now);
3999 S_SET_VALUE (sym, frag_now_fix ());
4000 S_SET_STORAGE_CLASS (sym, C_FCN);
4001 S_SET_NUMBER_AUXILIARY (sym, 1);
4002 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
4003 symbol_get_tc (sym)->output = 1;
4005 ppc_frob_label (sym);
4007 demand_empty_rest_of_line ();
4010 /* The .bi and .ei pseudo-ops. These take a string argument and
4011 generates a C_BINCL or C_EINCL symbol, which goes at the start of
4012 the symbol list. The value of .bi will be know when the next .bf
4018 static symbolS *last_biei;
4025 name = demand_copy_C_string (&len);
4027 /* The value of these symbols is actually file offset. Here we set
4028 the value to the index into the line number entries. In
4029 ppc_frob_symbols we set the fix_line field, which will cause BFD
4030 to do the right thing. */
4032 sym = symbol_make (name);
4033 /* obj-coff.c currently only handles line numbers correctly in the
4035 S_SET_SEGMENT (sym, text_section);
4036 S_SET_VALUE (sym, coff_n_line_nos);
4037 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4039 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
4040 symbol_get_tc (sym)->output = 1;
4048 for (look = last_biei ? last_biei : symbol_rootP;
4049 (look != (symbolS *) NULL
4050 && (S_GET_STORAGE_CLASS (look) == C_FILE
4051 || S_GET_STORAGE_CLASS (look) == C_BINCL
4052 || S_GET_STORAGE_CLASS (look) == C_EINCL));
4053 look = symbol_next (look))
4055 if (look != (symbolS *) NULL)
4057 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4058 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
4062 demand_empty_rest_of_line ();
4065 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
4066 There is one argument, which is a csect symbol. The value of the
4067 .bs symbol is the index of this csect symbol. */
4070 ppc_bs (int ignore ATTRIBUTE_UNUSED)
4077 if (ppc_current_block != NULL)
4078 as_bad (_("nested .bs blocks"));
4080 name = input_line_pointer;
4081 endc = get_symbol_end ();
4083 csect = symbol_find_or_make (name);
4085 *input_line_pointer = endc;
4087 sym = symbol_make (".bs");
4088 S_SET_SEGMENT (sym, now_seg);
4089 S_SET_STORAGE_CLASS (sym, C_BSTAT);
4090 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4091 symbol_get_tc (sym)->output = 1;
4093 symbol_get_tc (sym)->within = csect;
4095 ppc_frob_label (sym);
4097 ppc_current_block = sym;
4099 demand_empty_rest_of_line ();
4102 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
4105 ppc_es (int ignore ATTRIBUTE_UNUSED)
4109 if (ppc_current_block == NULL)
4110 as_bad (_(".es without preceding .bs"));
4112 sym = symbol_make (".es");
4113 S_SET_SEGMENT (sym, now_seg);
4114 S_SET_STORAGE_CLASS (sym, C_ESTAT);
4115 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4116 symbol_get_tc (sym)->output = 1;
4118 ppc_frob_label (sym);
4120 ppc_current_block = NULL;
4122 demand_empty_rest_of_line ();
4125 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
4129 ppc_bb (int ignore ATTRIBUTE_UNUSED)
4133 sym = symbol_make (".bb");
4134 S_SET_SEGMENT (sym, text_section);
4135 symbol_set_frag (sym, frag_now);
4136 S_SET_VALUE (sym, frag_now_fix ());
4137 S_SET_STORAGE_CLASS (sym, C_BLOCK);
4139 S_SET_NUMBER_AUXILIARY (sym, 1);
4140 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
4142 symbol_get_tc (sym)->output = 1;
4144 SF_SET_PROCESS (sym);
4146 ppc_frob_label (sym);
4148 demand_empty_rest_of_line ();
4151 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
4155 ppc_eb (int ignore ATTRIBUTE_UNUSED)
4159 sym = symbol_make (".eb");
4160 S_SET_SEGMENT (sym, text_section);
4161 symbol_set_frag (sym, frag_now);
4162 S_SET_VALUE (sym, frag_now_fix ());
4163 S_SET_STORAGE_CLASS (sym, C_BLOCK);
4164 S_SET_NUMBER_AUXILIARY (sym, 1);
4165 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
4166 symbol_get_tc (sym)->output = 1;
4168 SF_SET_PROCESS (sym);
4170 ppc_frob_label (sym);
4172 demand_empty_rest_of_line ();
4175 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
4179 ppc_bc (int ignore ATTRIBUTE_UNUSED)
4185 name = demand_copy_C_string (&len);
4186 sym = symbol_make (name);
4187 S_SET_SEGMENT (sym, ppc_coff_debug_section);
4188 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4189 S_SET_STORAGE_CLASS (sym, C_BCOMM);
4190 S_SET_VALUE (sym, 0);
4191 symbol_get_tc (sym)->output = 1;
4193 ppc_frob_label (sym);
4195 demand_empty_rest_of_line ();
4198 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
4201 ppc_ec (int ignore ATTRIBUTE_UNUSED)
4205 sym = symbol_make (".ec");
4206 S_SET_SEGMENT (sym, ppc_coff_debug_section);
4207 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4208 S_SET_STORAGE_CLASS (sym, C_ECOMM);
4209 S_SET_VALUE (sym, 0);
4210 symbol_get_tc (sym)->output = 1;
4212 ppc_frob_label (sym);
4214 demand_empty_rest_of_line ();
4217 /* The .toc pseudo-op. Switch to the .toc subsegment. */
4220 ppc_toc (int ignore ATTRIBUTE_UNUSED)
4222 if (ppc_toc_csect != (symbolS *) NULL)
4223 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
4230 subseg = ppc_data_subsegment;
4231 ++ppc_data_subsegment;
4233 subseg_new (segment_name (data_section), subseg);
4234 ppc_toc_frag = frag_now;
4236 sym = symbol_find_or_make ("TOC[TC0]");
4237 symbol_set_frag (sym, frag_now);
4238 S_SET_SEGMENT (sym, data_section);
4239 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4240 symbol_get_tc (sym)->subseg = subseg;
4241 symbol_get_tc (sym)->output = 1;
4242 symbol_get_tc (sym)->within = sym;
4244 ppc_toc_csect = sym;
4246 for (list = ppc_data_csects;
4247 symbol_get_tc (list)->next != (symbolS *) NULL;
4248 list = symbol_get_tc (list)->next)
4250 symbol_get_tc (list)->next = sym;
4252 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4253 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
4257 ppc_current_csect = ppc_toc_csect;
4259 demand_empty_rest_of_line ();
4262 /* The AIX assembler automatically aligns the operands of a .long or
4263 .short pseudo-op, and we want to be compatible. */
4266 ppc_xcoff_cons (int log_size)
4268 frag_align (log_size, 0, 0);
4269 record_alignment (now_seg, log_size);
4270 cons (1 << log_size);
4274 ppc_vbyte (int dummy ATTRIBUTE_UNUSED)
4279 (void) expression (&exp);
4281 if (exp.X_op != O_constant)
4283 as_bad (_("non-constant byte count"));
4287 byte_count = exp.X_add_number;
4289 if (*input_line_pointer != ',')
4291 as_bad (_("missing value"));
4295 ++input_line_pointer;
4299 #endif /* OBJ_XCOFF */
4300 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
4302 /* The .tc pseudo-op. This is used when generating either XCOFF or
4303 ELF. This takes two or more arguments.
4305 When generating XCOFF output, the first argument is the name to
4306 give to this location in the toc; this will be a symbol with class
4307 TC. The rest of the arguments are N-byte values to actually put at
4308 this location in the TOC; often there is just one more argument, a
4309 relocatable symbol reference. The size of the value to store
4310 depends on target word size. A 32-bit target uses 4-byte values, a
4311 64-bit target uses 8-byte values.
4313 When not generating XCOFF output, the arguments are the same, but
4314 the first argument is simply ignored. */
4317 ppc_tc (int ignore ATTRIBUTE_UNUSED)
4321 /* Define the TOC symbol name. */
4327 if (ppc_toc_csect == (symbolS *) NULL
4328 || ppc_toc_csect != ppc_current_csect)
4330 as_bad (_(".tc not in .toc section"));
4331 ignore_rest_of_line ();
4335 name = input_line_pointer;
4336 endc = get_symbol_end ();
4338 sym = symbol_find_or_make (name);
4340 *input_line_pointer = endc;
4342 if (S_IS_DEFINED (sym))
4346 label = symbol_get_tc (ppc_current_csect)->within;
4347 if (symbol_get_tc (label)->class != XMC_TC0)
4349 as_bad (_(".tc with no label"));
4350 ignore_rest_of_line ();
4354 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
4355 symbol_set_frag (label, symbol_get_frag (sym));
4356 S_SET_VALUE (label, S_GET_VALUE (sym));
4358 while (! is_end_of_line[(unsigned char) *input_line_pointer])
4359 ++input_line_pointer;
4364 S_SET_SEGMENT (sym, now_seg);
4365 symbol_set_frag (sym, frag_now);
4366 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4367 symbol_get_tc (sym)->class = XMC_TC;
4368 symbol_get_tc (sym)->output = 1;
4370 ppc_frob_label (sym);
4373 #endif /* OBJ_XCOFF */
4377 /* Skip the TOC symbol name. */
4378 while (is_part_of_name (*input_line_pointer)
4379 || *input_line_pointer == ' '
4380 || *input_line_pointer == '['
4381 || *input_line_pointer == ']'
4382 || *input_line_pointer == '{'
4383 || *input_line_pointer == '}')
4384 ++input_line_pointer;
4386 /* Align to a four/eight byte boundary. */
4387 align = ppc_obj64 ? 3 : 2;
4388 frag_align (align, 0, 0);
4389 record_alignment (now_seg, align);
4390 #endif /* OBJ_ELF */
4392 if (*input_line_pointer != ',')
4393 demand_empty_rest_of_line ();
4396 ++input_line_pointer;
4397 cons (ppc_obj64 ? 8 : 4);
4401 /* Pseudo-op .machine. */
4404 ppc_machine (int ignore ATTRIBUTE_UNUSED)
4407 #define MAX_HISTORY 100
4408 static ppc_cpu_t *cpu_history;
4409 static int curr_hist;
4413 if (*input_line_pointer == '"')
4416 cpu_string = demand_copy_C_string (&len);
4421 cpu_string = input_line_pointer;
4422 c = get_symbol_end ();
4423 cpu_string = xstrdup (cpu_string);
4424 *input_line_pointer = c;
4427 if (cpu_string != NULL)
4429 ppc_cpu_t old_cpu = ppc_cpu;
4432 for (p = cpu_string; *p != 0; p++)
4435 if (strcmp (cpu_string, "push") == 0)
4437 if (cpu_history == NULL)
4438 cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history));
4440 if (curr_hist >= MAX_HISTORY)
4441 as_bad (_(".machine stack overflow"));
4443 cpu_history[curr_hist++] = ppc_cpu;
4445 else if (strcmp (cpu_string, "pop") == 0)
4448 as_bad (_(".machine stack underflow"));
4450 ppc_cpu = cpu_history[--curr_hist];
4452 else if (parse_cpu (cpu_string))
4455 as_bad (_("invalid machine `%s'"), cpu_string);
4457 if (ppc_cpu != old_cpu)
4458 ppc_setup_opcodes ();
4461 demand_empty_rest_of_line ();
4464 /* See whether a symbol is in the TOC section. */
4467 ppc_is_toc_sym (symbolS *sym)
4470 return symbol_get_tc (sym)->class == XMC_TC;
4473 const char *sname = segment_name (S_GET_SEGMENT (sym));
4475 return strcmp (sname, ".toc") == 0;
4477 return strcmp (sname, ".got") == 0;
4480 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4484 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4486 /* Set the current section. */
4488 ppc_set_current_section (segT new)
4490 ppc_previous_section = ppc_current_section;
4491 ppc_current_section = new;
4494 /* pseudo-op: .previous
4495 behaviour: toggles the current section with the previous section.
4497 warnings: "No previous section" */
4500 ppc_previous (int ignore ATTRIBUTE_UNUSED)
4504 if (ppc_previous_section == NULL)
4506 as_warn (_("No previous section to return to. Directive ignored."));
4510 subseg_set (ppc_previous_section, 0);
4512 ppc_set_current_section (ppc_previous_section);
4515 /* pseudo-op: .pdata
4516 behaviour: predefined read only data section
4520 initial: .section .pdata "adr3"
4521 a - don't know -- maybe a misprint
4522 d - initialized data
4524 3 - double word aligned (that would be 4 byte boundary)
4527 Tag index tables (also known as the function table) for exception
4528 handling, debugging, etc. */
4531 ppc_pdata (int ignore ATTRIBUTE_UNUSED)
4533 if (pdata_section == 0)
4535 pdata_section = subseg_new (".pdata", 0);
4537 bfd_set_section_flags (stdoutput, pdata_section,
4538 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4539 | SEC_READONLY | SEC_DATA ));
4541 bfd_set_section_alignment (stdoutput, pdata_section, 2);
4545 pdata_section = subseg_new (".pdata", 0);
4547 ppc_set_current_section (pdata_section);
4550 /* pseudo-op: .ydata
4551 behaviour: predefined read only data section
4555 initial: .section .ydata "drw3"
4556 a - don't know -- maybe a misprint
4557 d - initialized data
4559 3 - double word aligned (that would be 4 byte boundary)
4561 Tag tables (also known as the scope table) for exception handling,
4565 ppc_ydata (int ignore ATTRIBUTE_UNUSED)
4567 if (ydata_section == 0)
4569 ydata_section = subseg_new (".ydata", 0);
4570 bfd_set_section_flags (stdoutput, ydata_section,
4571 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4572 | SEC_READONLY | SEC_DATA ));
4574 bfd_set_section_alignment (stdoutput, ydata_section, 3);
4578 ydata_section = subseg_new (".ydata", 0);
4580 ppc_set_current_section (ydata_section);
4583 /* pseudo-op: .reldata
4584 behaviour: predefined read write data section
4585 double word aligned (4-byte)
4586 FIXME: relocation is applied to it
4587 FIXME: what's the difference between this and .data?
4590 initial: .section .reldata "drw3"
4591 d - initialized data
4594 3 - double word aligned (that would be 8 byte boundary)
4597 Like .data, but intended to hold data subject to relocation, such as
4598 function descriptors, etc. */
4601 ppc_reldata (int ignore ATTRIBUTE_UNUSED)
4603 if (reldata_section == 0)
4605 reldata_section = subseg_new (".reldata", 0);
4607 bfd_set_section_flags (stdoutput, reldata_section,
4608 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4611 bfd_set_section_alignment (stdoutput, reldata_section, 2);
4615 reldata_section = subseg_new (".reldata", 0);
4617 ppc_set_current_section (reldata_section);
4620 /* pseudo-op: .rdata
4621 behaviour: predefined read only data section
4625 initial: .section .rdata "dr3"
4626 d - initialized data
4628 3 - double word aligned (that would be 4 byte boundary) */
4631 ppc_rdata (int ignore ATTRIBUTE_UNUSED)
4633 if (rdata_section == 0)
4635 rdata_section = subseg_new (".rdata", 0);
4636 bfd_set_section_flags (stdoutput, rdata_section,
4637 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4638 | SEC_READONLY | SEC_DATA ));
4640 bfd_set_section_alignment (stdoutput, rdata_section, 2);
4644 rdata_section = subseg_new (".rdata", 0);
4646 ppc_set_current_section (rdata_section);
4649 /* pseudo-op: .ualong
4650 behaviour: much like .int, with the exception that no alignment is
4652 FIXME: test the alignment statement
4657 ppc_ualong (int ignore ATTRIBUTE_UNUSED)
4663 /* pseudo-op: .znop <symbol name>
4664 behaviour: Issue a nop instruction
4665 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4666 the supplied symbol name.
4668 warnings: Missing symbol name */
4671 ppc_znop (int ignore ATTRIBUTE_UNUSED)
4674 const struct powerpc_opcode *opcode;
4685 /* Strip out the symbol name. */
4686 symbol_name = input_line_pointer;
4687 c = get_symbol_end ();
4689 name = xmalloc (input_line_pointer - symbol_name + 1);
4690 strcpy (name, symbol_name);
4692 sym = symbol_find_or_make (name);
4694 *input_line_pointer = c;
4698 /* Look up the opcode in the hash table. */
4699 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
4701 /* Stick in the nop. */
4702 insn = opcode->opcode;
4704 /* Write out the instruction. */
4706 md_number_to_chars (f, insn, 4);
4708 f - frag_now->fr_literal,
4713 BFD_RELOC_16_GOT_PCREL);
4723 ppc_pe_comm (int lcomm)
4732 name = input_line_pointer;
4733 c = get_symbol_end ();
4735 /* just after name is now '\0'. */
4736 p = input_line_pointer;
4739 if (*input_line_pointer != ',')
4741 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4742 ignore_rest_of_line ();
4746 input_line_pointer++; /* skip ',' */
4747 if ((temp = get_absolute_expression ()) < 0)
4749 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
4750 ignore_rest_of_line ();
4756 /* The third argument to .comm is the alignment. */
4757 if (*input_line_pointer != ',')
4761 ++input_line_pointer;
4762 align = get_absolute_expression ();
4765 as_warn (_("ignoring bad alignment"));
4772 symbolP = symbol_find_or_make (name);
4775 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
4777 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4778 S_GET_NAME (symbolP));
4779 ignore_rest_of_line ();
4783 if (S_GET_VALUE (symbolP))
4785 if (S_GET_VALUE (symbolP) != (valueT) temp)
4786 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4787 S_GET_NAME (symbolP),
4788 (long) S_GET_VALUE (symbolP),
4793 S_SET_VALUE (symbolP, (valueT) temp);
4794 S_SET_EXTERNAL (symbolP);
4795 S_SET_SEGMENT (symbolP, bfd_com_section_ptr);
4798 demand_empty_rest_of_line ();
4802 * implement the .section pseudo op:
4803 * .section name {, "flags"}
4805 * | +--- optional flags: 'b' for bss
4807 * +-- section name 'l' for lib
4811 * 'd' (apparently m88k for data)
4813 * But if the argument is not a quoted string, treat it as a
4814 * subsegment number.
4816 * FIXME: this is a copy of the section processing from obj-coff.c, with
4817 * additions/changes for the moto-pas assembler support. There are three
4820 * FIXME: I just noticed this. This doesn't work at all really. It it
4821 * setting bits that bfd probably neither understands or uses. The
4822 * correct approach (?) will have to incorporate extra fields attached
4823 * to the section to hold the system specific stuff. (krk)
4826 * 'a' - unknown - referred to in documentation, but no definition supplied
4827 * 'c' - section has code
4828 * 'd' - section has initialized data
4829 * 'u' - section has uninitialized data
4830 * 'i' - section contains directives (info)
4831 * 'n' - section can be discarded
4832 * 'R' - remove section at link time
4834 * Section Protection:
4835 * 'r' - section is readable
4836 * 'w' - section is writeable
4837 * 'x' - section is executable
4838 * 's' - section is sharable
4840 * Section Alignment:
4841 * '0' - align to byte boundary
4842 * '1' - align to halfword undary
4843 * '2' - align to word boundary
4844 * '3' - align to doubleword boundary
4845 * '4' - align to quadword boundary
4846 * '5' - align to 32 byte boundary
4847 * '6' - align to 64 byte boundary
4852 ppc_pe_section (int ignore ATTRIBUTE_UNUSED)
4854 /* Strip out the section name. */
4863 section_name = input_line_pointer;
4864 c = get_symbol_end ();
4866 name = xmalloc (input_line_pointer - section_name + 1);
4867 strcpy (name, section_name);
4869 *input_line_pointer = c;
4874 flags = SEC_NO_FLAGS;
4876 if (strcmp (name, ".idata$2") == 0)
4880 else if (strcmp (name, ".idata$3") == 0)
4884 else if (strcmp (name, ".idata$4") == 0)
4888 else if (strcmp (name, ".idata$5") == 0)
4892 else if (strcmp (name, ".idata$6") == 0)
4897 /* Default alignment to 16 byte boundary. */
4900 if (*input_line_pointer == ',')
4902 ++input_line_pointer;
4904 if (*input_line_pointer != '"')
4905 exp = get_absolute_expression ();
4908 ++input_line_pointer;
4909 while (*input_line_pointer != '"'
4910 && ! is_end_of_line[(unsigned char) *input_line_pointer])
4912 switch (*input_line_pointer)
4914 /* Section Contents */
4915 case 'a': /* unknown */
4916 as_bad (_("Unsupported section attribute -- 'a'"));
4918 case 'c': /* code section */
4921 case 'd': /* section has initialized data */
4924 case 'u': /* section has uninitialized data */
4925 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4929 case 'i': /* section contains directives (info) */
4930 /* FIXME: This is IMAGE_SCN_LNK_INFO
4932 flags |= SEC_HAS_CONTENTS;
4934 case 'n': /* section can be discarded */
4937 case 'R': /* Remove section at link time */
4938 flags |= SEC_NEVER_LOAD;
4940 #if IFLICT_BRAIN_DAMAGE
4941 /* Section Protection */
4942 case 'r': /* section is readable */
4943 flags |= IMAGE_SCN_MEM_READ;
4945 case 'w': /* section is writeable */
4946 flags |= IMAGE_SCN_MEM_WRITE;
4948 case 'x': /* section is executable */
4949 flags |= IMAGE_SCN_MEM_EXECUTE;
4951 case 's': /* section is sharable */
4952 flags |= IMAGE_SCN_MEM_SHARED;
4955 /* Section Alignment */
4956 case '0': /* align to byte boundary */
4957 flags |= IMAGE_SCN_ALIGN_1BYTES;
4960 case '1': /* align to halfword boundary */
4961 flags |= IMAGE_SCN_ALIGN_2BYTES;
4964 case '2': /* align to word boundary */
4965 flags |= IMAGE_SCN_ALIGN_4BYTES;
4968 case '3': /* align to doubleword boundary */
4969 flags |= IMAGE_SCN_ALIGN_8BYTES;
4972 case '4': /* align to quadword boundary */
4973 flags |= IMAGE_SCN_ALIGN_16BYTES;
4976 case '5': /* align to 32 byte boundary */
4977 flags |= IMAGE_SCN_ALIGN_32BYTES;
4980 case '6': /* align to 64 byte boundary */
4981 flags |= IMAGE_SCN_ALIGN_64BYTES;
4986 as_bad (_("unknown section attribute '%c'"),
4987 *input_line_pointer);
4990 ++input_line_pointer;
4992 if (*input_line_pointer == '"')
4993 ++input_line_pointer;
4997 sec = subseg_new (name, (subsegT) exp);
4999 ppc_set_current_section (sec);
5001 if (flags != SEC_NO_FLAGS)
5003 if (! bfd_set_section_flags (stdoutput, sec, flags))
5004 as_bad (_("error setting flags for \"%s\": %s"),
5005 bfd_section_name (stdoutput, sec),
5006 bfd_errmsg (bfd_get_error ()));
5009 bfd_set_section_alignment (stdoutput, sec, align);
5013 ppc_pe_function (int ignore ATTRIBUTE_UNUSED)
5019 name = input_line_pointer;
5020 endc = get_symbol_end ();
5022 ext_sym = symbol_find_or_make (name);
5024 *input_line_pointer = endc;
5026 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
5027 SF_SET_FUNCTION (ext_sym);
5028 SF_SET_PROCESS (ext_sym);
5029 coff_add_linesym (ext_sym);
5031 demand_empty_rest_of_line ();
5035 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED)
5037 if (tocdata_section == 0)
5039 tocdata_section = subseg_new (".tocd", 0);
5040 /* FIXME: section flags won't work. */
5041 bfd_set_section_flags (stdoutput, tocdata_section,
5042 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
5043 | SEC_READONLY | SEC_DATA));
5045 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
5049 rdata_section = subseg_new (".tocd", 0);
5052 ppc_set_current_section (tocdata_section);
5054 demand_empty_rest_of_line ();
5057 /* Don't adjust TOC relocs to use the section symbol. */
5060 ppc_pe_fix_adjustable (fixS *fix)
5062 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
5069 /* XCOFF specific symbol and file handling. */
5071 /* Canonicalize the symbol name. We use the to force the suffix, if
5072 any, to use square brackets, and to be in upper case. */
5075 ppc_canonicalize_symbol_name (char *name)
5079 if (ppc_stab_symbol)
5082 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
5096 for (s++; *s != '\0' && *s != brac; s++)
5099 if (*s == '\0' || s[1] != '\0')
5100 as_bad (_("bad symbol suffix"));
5108 /* Set the class of a symbol based on the suffix, if any. This is
5109 called whenever a new symbol is created. */
5112 ppc_symbol_new_hook (symbolS *sym)
5114 struct ppc_tc_sy *tc;
5117 tc = symbol_get_tc (sym);
5121 tc->real_name = NULL;
5127 if (ppc_stab_symbol)
5130 s = strchr (S_GET_NAME (sym), '[');
5131 if (s == (const char *) NULL)
5133 /* There is no suffix. */
5142 if (strcmp (s, "BS]") == 0)
5146 if (strcmp (s, "DB]") == 0)
5148 else if (strcmp (s, "DS]") == 0)
5152 if (strcmp (s, "GL]") == 0)
5156 if (strcmp (s, "PR]") == 0)
5160 if (strcmp (s, "RO]") == 0)
5162 else if (strcmp (s, "RW]") == 0)
5166 if (strcmp (s, "SV]") == 0)
5170 if (strcmp (s, "TC]") == 0)
5172 else if (strcmp (s, "TI]") == 0)
5174 else if (strcmp (s, "TB]") == 0)
5176 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
5177 tc->class = XMC_TC0;
5180 if (strcmp (s, "UA]") == 0)
5182 else if (strcmp (s, "UC]") == 0)
5186 if (strcmp (s, "XO]") == 0)
5191 if (tc->class == -1)
5192 as_bad (_("Unrecognized symbol suffix"));
5195 /* Set the class of a label based on where it is defined. This
5196 handles symbols without suffixes. Also, move the symbol so that it
5197 follows the csect symbol. */
5200 ppc_frob_label (symbolS *sym)
5202 if (ppc_current_csect != (symbolS *) NULL)
5204 if (symbol_get_tc (sym)->class == -1)
5205 symbol_get_tc (sym)->class = symbol_get_tc (ppc_current_csect)->class;
5207 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
5208 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
5209 &symbol_rootP, &symbol_lastP);
5210 symbol_get_tc (ppc_current_csect)->within = sym;
5214 dwarf2_emit_label (sym);
5218 /* This variable is set by ppc_frob_symbol if any absolute symbols are
5219 seen. It tells ppc_adjust_symtab whether it needs to look through
5222 static bfd_boolean ppc_saw_abs;
5224 /* Change the name of a symbol just before writing it out. Set the
5225 real name if the .rename pseudo-op was used. Otherwise, remove any
5226 class suffix. Return 1 if the symbol should not be included in the
5230 ppc_frob_symbol (symbolS *sym)
5232 static symbolS *ppc_last_function;
5233 static symbolS *set_end;
5235 /* Discard symbols that should not be included in the output symbol
5237 if (! symbol_used_in_reloc_p (sym)
5238 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
5239 || (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5240 && ! symbol_get_tc (sym)->output
5241 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
5244 /* This one will disappear anyway. Don't make a csect sym for it. */
5245 if (sym == abs_section_sym)
5248 if (symbol_get_tc (sym)->real_name != (char *) NULL)
5249 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
5255 name = S_GET_NAME (sym);
5256 s = strchr (name, '[');
5257 if (s != (char *) NULL)
5263 snew = xmalloc (len + 1);
5264 memcpy (snew, name, len);
5267 S_SET_NAME (sym, snew);
5271 if (set_end != (symbolS *) NULL)
5273 SA_SET_SYM_ENDNDX (set_end, sym);
5277 if (SF_GET_FUNCTION (sym))
5279 if (ppc_last_function != (symbolS *) NULL)
5280 as_bad (_("two .function pseudo-ops with no intervening .ef"));
5281 ppc_last_function = sym;
5282 if (symbol_get_tc (sym)->size != (symbolS *) NULL)
5284 resolve_symbol_value (symbol_get_tc (sym)->size);
5285 SA_SET_SYM_FSIZE (sym,
5286 (long) S_GET_VALUE (symbol_get_tc (sym)->size));
5289 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
5290 && strcmp (S_GET_NAME (sym), ".ef") == 0)
5292 if (ppc_last_function == (symbolS *) NULL)
5293 as_bad (_(".ef with no preceding .function"));
5296 set_end = ppc_last_function;
5297 ppc_last_function = NULL;
5299 /* We don't have a C_EFCN symbol, but we need to force the
5300 COFF backend to believe that it has seen one. */
5301 coff_last_function = NULL;
5305 if (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5306 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
5307 && S_GET_STORAGE_CLASS (sym) != C_FILE
5308 && S_GET_STORAGE_CLASS (sym) != C_FCN
5309 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
5310 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
5311 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
5312 && S_GET_STORAGE_CLASS (sym) != C_BINCL
5313 && S_GET_STORAGE_CLASS (sym) != C_EINCL
5314 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
5315 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
5317 if (S_GET_STORAGE_CLASS (sym) == C_EXT
5318 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
5321 union internal_auxent *a;
5323 /* Create a csect aux. */
5324 i = S_GET_NUMBER_AUXILIARY (sym);
5325 S_SET_NUMBER_AUXILIARY (sym, i + 1);
5326 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
5327 if (symbol_get_tc (sym)->class == XMC_TC0)
5329 /* This is the TOC table. */
5330 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
5331 a->x_csect.x_scnlen.l = 0;
5332 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5334 else if (symbol_get_tc (sym)->subseg != 0)
5336 /* This is a csect symbol. x_scnlen is the size of the
5338 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
5339 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5340 S_GET_SEGMENT (sym))
5341 - S_GET_VALUE (sym));
5344 resolve_symbol_value (symbol_get_tc (sym)->next);
5345 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
5346 - S_GET_VALUE (sym));
5348 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
5350 else if (S_GET_SEGMENT (sym) == bss_section)
5352 /* This is a common symbol. */
5353 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
5354 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
5355 if (S_IS_EXTERNAL (sym))
5356 symbol_get_tc (sym)->class = XMC_RW;
5358 symbol_get_tc (sym)->class = XMC_BS;
5360 else if (S_GET_SEGMENT (sym) == absolute_section)
5362 /* This is an absolute symbol. The csect will be created by
5363 ppc_adjust_symtab. */
5365 a->x_csect.x_smtyp = XTY_LD;
5366 if (symbol_get_tc (sym)->class == -1)
5367 symbol_get_tc (sym)->class = XMC_XO;
5369 else if (! S_IS_DEFINED (sym))
5371 /* This is an external symbol. */
5372 a->x_csect.x_scnlen.l = 0;
5373 a->x_csect.x_smtyp = XTY_ER;
5375 else if (symbol_get_tc (sym)->class == XMC_TC)
5379 /* This is a TOC definition. x_scnlen is the size of the
5381 next = symbol_next (sym);
5382 while (symbol_get_tc (next)->class == XMC_TC0)
5383 next = symbol_next (next);
5384 if (next == (symbolS *) NULL
5385 || symbol_get_tc (next)->class != XMC_TC)
5387 if (ppc_after_toc_frag == (fragS *) NULL)
5388 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5390 - S_GET_VALUE (sym));
5392 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
5393 - S_GET_VALUE (sym));
5397 resolve_symbol_value (next);
5398 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
5399 - S_GET_VALUE (sym));
5401 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5407 /* This is a normal symbol definition. x_scnlen is the
5408 symbol index of the containing csect. */
5409 if (S_GET_SEGMENT (sym) == text_section)
5410 csect = ppc_text_csects;
5411 else if (S_GET_SEGMENT (sym) == data_section)
5412 csect = ppc_data_csects;
5416 /* Skip the initial dummy symbol. */
5417 csect = symbol_get_tc (csect)->next;
5419 if (csect == (symbolS *) NULL)
5421 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
5422 a->x_csect.x_scnlen.l = 0;
5426 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
5428 resolve_symbol_value (symbol_get_tc (csect)->next);
5429 if (S_GET_VALUE (symbol_get_tc (csect)->next)
5430 > S_GET_VALUE (sym))
5432 csect = symbol_get_tc (csect)->next;
5435 a->x_csect.x_scnlen.p =
5436 coffsymbol (symbol_get_bfdsym (csect))->native;
5437 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
5440 a->x_csect.x_smtyp = XTY_LD;
5443 a->x_csect.x_parmhash = 0;
5444 a->x_csect.x_snhash = 0;
5445 if (symbol_get_tc (sym)->class == -1)
5446 a->x_csect.x_smclas = XMC_PR;
5448 a->x_csect.x_smclas = symbol_get_tc (sym)->class;
5449 a->x_csect.x_stab = 0;
5450 a->x_csect.x_snstab = 0;
5452 /* Don't let the COFF backend resort these symbols. */
5453 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
5455 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
5457 /* We want the value to be the symbol index of the referenced
5458 csect symbol. BFD will do that for us if we set the right
5460 asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within);
5461 combined_entry_type *c = coffsymbol (bsym)->native;
5463 S_SET_VALUE (sym, (valueT) (size_t) c);
5464 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
5466 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
5471 /* The value is the offset from the enclosing csect. */
5472 block = symbol_get_tc (sym)->within;
5473 csect = symbol_get_tc (block)->within;
5474 resolve_symbol_value (csect);
5475 S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect));
5477 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
5478 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
5480 /* We want the value to be a file offset into the line numbers.
5481 BFD will do that for us if we set the right flags. We have
5482 already set the value correctly. */
5483 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
5489 /* Adjust the symbol table. This creates csect symbols for all
5490 absolute symbols. */
5493 ppc_adjust_symtab (void)
5500 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
5504 union internal_auxent *a;
5506 if (S_GET_SEGMENT (sym) != absolute_section)
5509 csect = symbol_create (".abs[XO]", absolute_section,
5510 S_GET_VALUE (sym), &zero_address_frag);
5511 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
5512 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
5513 i = S_GET_NUMBER_AUXILIARY (csect);
5514 S_SET_NUMBER_AUXILIARY (csect, i + 1);
5515 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
5516 a->x_csect.x_scnlen.l = 0;
5517 a->x_csect.x_smtyp = XTY_SD;
5518 a->x_csect.x_parmhash = 0;
5519 a->x_csect.x_snhash = 0;
5520 a->x_csect.x_smclas = XMC_XO;
5521 a->x_csect.x_stab = 0;
5522 a->x_csect.x_snstab = 0;
5524 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
5526 i = S_GET_NUMBER_AUXILIARY (sym);
5527 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
5528 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
5529 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
5532 ppc_saw_abs = FALSE;
5535 /* Set the VMA for a section. This is called on all the sections in
5539 ppc_frob_section (asection *sec)
5541 static bfd_vma vma = 0;
5543 vma = md_section_align (sec, vma);
5544 bfd_set_section_vma (stdoutput, sec, vma);
5545 vma += bfd_section_size (stdoutput, sec);
5548 #endif /* OBJ_XCOFF */
5551 md_atof (int type, char *litp, int *sizep)
5553 return ieee_md_atof (type, litp, sizep, target_big_endian);
5556 /* Write a value out to the object file, using the appropriate
5560 md_number_to_chars (char *buf, valueT val, int n)
5562 if (target_big_endian)
5563 number_to_chars_bigendian (buf, val, n);
5565 number_to_chars_littleendian (buf, val, n);
5568 /* Align a section (I don't know why this is machine dependent). */
5571 md_section_align (asection *seg ATTRIBUTE_UNUSED, valueT addr)
5576 int align = bfd_get_section_alignment (stdoutput, seg);
5578 return ((addr + (1 << align) - 1) & (-1 << align));
5582 /* We don't have any form of relaxing. */
5585 md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED,
5586 asection *seg ATTRIBUTE_UNUSED)
5592 /* Convert a machine dependent frag. We never generate these. */
5595 md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
5596 asection *sec ATTRIBUTE_UNUSED,
5597 fragS *fragp ATTRIBUTE_UNUSED)
5602 /* We have no need to default values of symbols. */
5605 md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
5610 /* Functions concerning relocs. */
5612 /* The location from which a PC relative jump should be calculated,
5613 given a PC relative reloc. */
5616 md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED)
5618 return fixp->fx_frag->fr_address + fixp->fx_where;
5623 /* This is called to see whether a fixup should be adjusted to use a
5624 section symbol. We take the opportunity to change a fixup against
5625 a symbol in the TOC subsegment into a reloc against the
5626 corresponding .tc symbol. */
5629 ppc_fix_adjustable (fixS *fix)
5631 valueT val = resolve_symbol_value (fix->fx_addsy);
5632 segT symseg = S_GET_SEGMENT (fix->fx_addsy);
5633 TC_SYMFIELD_TYPE *tc;
5635 if (symseg == absolute_section)
5638 if (ppc_toc_csect != (symbolS *) NULL
5639 && fix->fx_addsy != ppc_toc_csect
5640 && symseg == data_section
5641 && val >= ppc_toc_frag->fr_address
5642 && (ppc_after_toc_frag == (fragS *) NULL
5643 || val < ppc_after_toc_frag->fr_address))
5647 for (sy = symbol_next (ppc_toc_csect);
5648 sy != (symbolS *) NULL;
5649 sy = symbol_next (sy))
5651 TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy);
5653 if (sy_tc->class == XMC_TC0)
5655 if (sy_tc->class != XMC_TC)
5657 if (val == resolve_symbol_value (sy))
5660 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
5665 as_bad_where (fix->fx_file, fix->fx_line,
5666 _("symbol in .toc does not match any .tc"));
5669 /* Possibly adjust the reloc to be against the csect. */
5670 tc = symbol_get_tc (fix->fx_addsy);
5672 && tc->class != XMC_TC0
5673 && tc->class != XMC_TC
5674 && symseg != bss_section
5675 /* Don't adjust if this is a reloc in the toc section. */
5676 && (symseg != data_section
5677 || ppc_toc_csect == NULL
5678 || val < ppc_toc_frag->fr_address
5679 || (ppc_after_toc_frag != NULL
5680 && val >= ppc_after_toc_frag->fr_address)))
5683 symbolS *next_csect;
5685 if (symseg == text_section)
5686 csect = ppc_text_csects;
5687 else if (symseg == data_section)
5688 csect = ppc_data_csects;
5692 /* Skip the initial dummy symbol. */
5693 csect = symbol_get_tc (csect)->next;
5695 if (csect != (symbolS *) NULL)
5697 while ((next_csect = symbol_get_tc (csect)->next) != (symbolS *) NULL
5698 && (symbol_get_frag (next_csect)->fr_address <= val))
5700 /* If the csect address equals the symbol value, then we
5701 have to look through the full symbol table to see
5702 whether this is the csect we want. Note that we will
5703 only get here if the csect has zero length. */
5704 if (symbol_get_frag (csect)->fr_address == val
5705 && S_GET_VALUE (csect) == val)
5709 for (scan = symbol_next (csect);
5711 scan = symbol_next (scan))
5713 if (symbol_get_tc (scan)->subseg != 0)
5715 if (scan == fix->fx_addsy)
5719 /* If we found the symbol before the next csect
5720 symbol, then this is the csect we want. */
5721 if (scan == fix->fx_addsy)
5728 fix->fx_offset += val - symbol_get_frag (csect)->fr_address;
5729 fix->fx_addsy = csect;
5734 /* Adjust a reloc against a .lcomm symbol to be against the base
5736 if (symseg == bss_section
5737 && ! S_IS_EXTERNAL (fix->fx_addsy))
5739 symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
5741 fix->fx_offset += val - resolve_symbol_value (sy);
5748 /* A reloc from one csect to another must be kept. The assembler
5749 will, of course, keep relocs between sections, and it will keep
5750 absolute relocs, but we need to force it to keep PC relative relocs
5751 between two csects in the same section. */
5754 ppc_force_relocation (fixS *fix)
5756 /* At this point fix->fx_addsy should already have been converted to
5757 a csect symbol. If the csect does not include the fragment, then
5758 we need to force the relocation. */
5760 && fix->fx_addsy != NULL
5761 && symbol_get_tc (fix->fx_addsy)->subseg != 0
5762 && ((symbol_get_frag (fix->fx_addsy)->fr_address
5763 > fix->fx_frag->fr_address)
5764 || (symbol_get_tc (fix->fx_addsy)->next != NULL
5765 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
5766 <= fix->fx_frag->fr_address))))
5769 return generic_force_reloc (fix);
5772 #endif /* OBJ_XCOFF */
5775 /* If this function returns non-zero, it guarantees that a relocation
5776 will be emitted for a fixup. */
5779 ppc_force_relocation (fixS *fix)
5781 /* Branch prediction relocations must force a relocation, as must
5782 the vtable description relocs. */
5783 switch (fix->fx_r_type)
5785 case BFD_RELOC_PPC_B16_BRTAKEN:
5786 case BFD_RELOC_PPC_B16_BRNTAKEN:
5787 case BFD_RELOC_PPC_BA16_BRTAKEN:
5788 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5789 case BFD_RELOC_24_PLT_PCREL:
5790 case BFD_RELOC_PPC64_TOC:
5796 if (fix->fx_r_type >= BFD_RELOC_PPC_TLS
5797 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)
5800 return generic_force_reloc (fix);
5804 ppc_fix_adjustable (fixS *fix)
5806 return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
5807 && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
5808 && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
5809 && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
5810 && fix->fx_r_type != BFD_RELOC_GPREL16
5811 && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT
5812 && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY
5813 && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS
5814 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA));
5818 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
5819 rs_align_code frag. */
5822 ppc_handle_align (struct frag *fragP)
5824 valueT count = (fragP->fr_next->fr_address
5825 - (fragP->fr_address + fragP->fr_fix));
5827 if (count != 0 && (count & 3) == 0)
5829 char *dest = fragP->fr_literal + fragP->fr_fix;
5832 md_number_to_chars (dest, 0x60000000, 4);
5834 if ((ppc_cpu & PPC_OPCODE_POWER6) != 0)
5836 /* For power6, we want the last nop to be a group terminating
5837 one, "ori 1,1,0". Do this by inserting an rs_fill frag
5838 immediately after this one, with its address set to the last
5839 nop location. This will automatically reduce the number of
5840 nops in the current frag by one. */
5843 struct frag *group_nop = xmalloc (SIZEOF_STRUCT_FRAG + 4);
5845 memcpy (group_nop, fragP, SIZEOF_STRUCT_FRAG);
5846 group_nop->fr_address = group_nop->fr_next->fr_address - 4;
5847 group_nop->fr_fix = 0;
5848 group_nop->fr_offset = 1;
5849 group_nop->fr_type = rs_fill;
5850 fragP->fr_next = group_nop;
5851 dest = group_nop->fr_literal;
5854 md_number_to_chars (dest, 0x60210000, 4);
5859 /* Apply a fixup to the object code. This is called for all the
5860 fixups we generated by the call to fix_new_exp, above. In the call
5861 above we used a reloc code which was the largest legal reloc code
5862 plus the operand index. Here we undo that to recover the operand
5863 index. At this point all symbol values should be fully resolved,
5864 and we attempt to completely resolve the reloc. If we can not do
5865 that, we determine the correct reloc code and put it back in the
5869 md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
5871 valueT value = * valP;
5874 if (fixP->fx_addsy != NULL)
5876 /* Hack around bfd_install_relocation brain damage. */
5878 value += fixP->fx_frag->fr_address + fixP->fx_where;
5883 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5884 the symbol values. If we are doing this relocation the code in
5885 write.c is going to call bfd_install_relocation, which is also
5886 going to use the symbol value. That means that if the reloc is
5887 fully resolved we want to use *valP since bfd_install_relocation is
5889 However, if the reloc is not fully resolved we do not want to use
5890 *valP, and must use fx_offset instead. However, if the reloc
5891 is PC relative, we do want to use *valP since it includes the
5892 result of md_pcrel_from. This is confusing. */
5893 if (fixP->fx_addsy == (symbolS *) NULL)
5896 else if (fixP->fx_pcrel)
5900 value = fixP->fx_offset;
5903 if (fixP->fx_subsy != (symbolS *) NULL)
5905 /* We can't actually support subtracting a symbol. */
5906 as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
5909 if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
5912 const struct powerpc_operand *operand;
5916 opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED;
5918 operand = &powerpc_operands[opindex];
5921 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5922 does not generate a reloc. It uses the offset of `sym' within its
5923 csect. Other usages, such as `.long sym', generate relocs. This
5924 is the documented behaviour of non-TOC symbols. */
5925 if ((operand->flags & PPC_OPERAND_PARENS) != 0
5926 && (operand->bitm & 0xfff0) == 0xfff0
5927 && operand->shift == 0
5928 && (operand->insert == NULL || ppc_obj64)
5929 && fixP->fx_addsy != NULL
5930 && symbol_get_tc (fixP->fx_addsy)->subseg != 0
5931 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC
5932 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC0
5933 && S_GET_SEGMENT (fixP->fx_addsy) != bss_section)
5935 value = fixP->fx_offset;
5940 /* Fetch the instruction, insert the fully resolved operand
5941 value, and stuff the instruction back again. */
5942 where = fixP->fx_frag->fr_literal + fixP->fx_where;
5943 if (target_big_endian)
5944 insn = bfd_getb32 ((unsigned char *) where);
5946 insn = bfd_getl32 ((unsigned char *) where);
5947 insn = ppc_insert_operand (insn, operand, (offsetT) value,
5948 fixP->tc_fix_data.ppc_cpu,
5949 fixP->fx_file, fixP->fx_line);
5950 if (target_big_endian)
5951 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5953 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5956 /* Nothing else to do here. */
5959 assert (fixP->fx_addsy != NULL);
5961 /* Determine a BFD reloc value based on the operand information.
5962 We are only prepared to turn a few of the operands into
5964 if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5965 && operand->bitm == 0x3fffffc
5966 && operand->shift == 0)
5967 fixP->fx_r_type = BFD_RELOC_PPC_B26;
5968 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5969 && operand->bitm == 0xfffc
5970 && operand->shift == 0)
5972 fixP->fx_r_type = BFD_RELOC_PPC_B16;
5975 if (target_big_endian)
5976 fixP->fx_where += 2;
5979 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5980 && operand->bitm == 0x3fffffc
5981 && operand->shift == 0)
5982 fixP->fx_r_type = BFD_RELOC_PPC_BA26;
5983 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5984 && operand->bitm == 0xfffc
5985 && operand->shift == 0)
5987 fixP->fx_r_type = BFD_RELOC_PPC_BA16;
5990 if (target_big_endian)
5991 fixP->fx_where += 2;
5994 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5995 else if ((operand->flags & PPC_OPERAND_PARENS) != 0
5996 && (operand->bitm & 0xfff0) == 0xfff0
5997 && operand->shift == 0)
5999 if (ppc_is_toc_sym (fixP->fx_addsy))
6001 fixP->fx_r_type = BFD_RELOC_PPC_TOC16;
6004 && (operand->flags & PPC_OPERAND_DS) != 0)
6005 fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS;
6010 fixP->fx_r_type = BFD_RELOC_16;
6013 && (operand->flags & PPC_OPERAND_DS) != 0)
6014 fixP->fx_r_type = BFD_RELOC_PPC64_ADDR16_DS;
6018 if (target_big_endian)
6019 fixP->fx_where += 2;
6021 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
6027 /* Use expr_symbol_where to see if this is an expression
6029 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
6030 as_bad_where (fixP->fx_file, fixP->fx_line,
6031 _("unresolved expression that must be resolved"));
6033 as_bad_where (fixP->fx_file, fixP->fx_line,
6034 _("unsupported relocation against %s"),
6035 S_GET_NAME (fixP->fx_addsy));
6043 ppc_elf_validate_fix (fixP, seg);
6045 switch (fixP->fx_r_type)
6047 case BFD_RELOC_CTOR:
6054 fixP->fx_r_type = BFD_RELOC_32_PCREL;
6058 case BFD_RELOC_32_PCREL:
6059 case BFD_RELOC_PPC_EMB_NADDR32:
6060 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6067 fixP->fx_r_type = BFD_RELOC_64_PCREL;
6070 case BFD_RELOC_64_PCREL:
6071 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6075 case BFD_RELOC_GPREL16:
6076 case BFD_RELOC_16_GOT_PCREL:
6077 case BFD_RELOC_16_GOTOFF:
6078 case BFD_RELOC_LO16_GOTOFF:
6079 case BFD_RELOC_HI16_GOTOFF:
6080 case BFD_RELOC_HI16_S_GOTOFF:
6081 case BFD_RELOC_16_BASEREL:
6082 case BFD_RELOC_LO16_BASEREL:
6083 case BFD_RELOC_HI16_BASEREL:
6084 case BFD_RELOC_HI16_S_BASEREL:
6085 case BFD_RELOC_PPC_EMB_NADDR16:
6086 case BFD_RELOC_PPC_EMB_NADDR16_LO:
6087 case BFD_RELOC_PPC_EMB_NADDR16_HI:
6088 case BFD_RELOC_PPC_EMB_NADDR16_HA:
6089 case BFD_RELOC_PPC_EMB_SDAI16:
6090 case BFD_RELOC_PPC_EMB_SDA2REL:
6091 case BFD_RELOC_PPC_EMB_SDA2I16:
6092 case BFD_RELOC_PPC_EMB_RELSEC16:
6093 case BFD_RELOC_PPC_EMB_RELST_LO:
6094 case BFD_RELOC_PPC_EMB_RELST_HI:
6095 case BFD_RELOC_PPC_EMB_RELST_HA:
6096 case BFD_RELOC_PPC_EMB_RELSDA:
6097 case BFD_RELOC_PPC_TOC16:
6099 case BFD_RELOC_PPC64_TOC16_LO:
6100 case BFD_RELOC_PPC64_TOC16_HI:
6101 case BFD_RELOC_PPC64_TOC16_HA:
6105 if (fixP->fx_addsy != NULL)
6106 as_bad_where (fixP->fx_file, fixP->fx_line,
6107 _("cannot emit PC relative %s relocation against %s"),
6108 bfd_get_reloc_code_name (fixP->fx_r_type),
6109 S_GET_NAME (fixP->fx_addsy));
6111 as_bad_where (fixP->fx_file, fixP->fx_line,
6112 _("cannot emit PC relative %s relocation"),
6113 bfd_get_reloc_code_name (fixP->fx_r_type));
6116 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6122 fixP->fx_r_type = BFD_RELOC_16_PCREL;
6125 case BFD_RELOC_16_PCREL:
6126 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6130 case BFD_RELOC_LO16:
6132 fixP->fx_r_type = BFD_RELOC_LO16_PCREL;
6135 case BFD_RELOC_LO16_PCREL:
6136 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6140 /* This case happens when you write, for example,
6142 where L1 and L2 are defined later. */
6143 case BFD_RELOC_HI16:
6145 fixP->fx_r_type = BFD_RELOC_HI16_PCREL;
6148 case BFD_RELOC_HI16_PCREL:
6149 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6153 case BFD_RELOC_HI16_S:
6155 fixP->fx_r_type = BFD_RELOC_HI16_S_PCREL;
6158 case BFD_RELOC_HI16_S_PCREL:
6159 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6164 case BFD_RELOC_PPC64_HIGHER:
6167 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6168 PPC_HIGHER (value), 2);
6171 case BFD_RELOC_PPC64_HIGHER_S:
6174 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6175 PPC_HIGHERA (value), 2);
6178 case BFD_RELOC_PPC64_HIGHEST:
6181 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6182 PPC_HIGHEST (value), 2);
6185 case BFD_RELOC_PPC64_HIGHEST_S:
6188 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6189 PPC_HIGHESTA (value), 2);
6192 case BFD_RELOC_PPC64_ADDR16_DS:
6193 case BFD_RELOC_PPC64_ADDR16_LO_DS:
6194 case BFD_RELOC_PPC64_GOT16_DS:
6195 case BFD_RELOC_PPC64_GOT16_LO_DS:
6196 case BFD_RELOC_PPC64_PLT16_LO_DS:
6197 case BFD_RELOC_PPC64_SECTOFF_DS:
6198 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
6199 case BFD_RELOC_PPC64_TOC16_DS:
6200 case BFD_RELOC_PPC64_TOC16_LO_DS:
6201 case BFD_RELOC_PPC64_PLTGOT16_DS:
6202 case BFD_RELOC_PPC64_PLTGOT16_LO_DS:
6206 char *where = fixP->fx_frag->fr_literal + fixP->fx_where;
6207 unsigned long val, mask;
6209 if (target_big_endian)
6210 val = bfd_getb32 (where - 2);
6212 val = bfd_getl32 (where);
6214 /* lq insns reserve the four lsbs. */
6215 if ((ppc_cpu & PPC_OPCODE_POWER4) != 0
6216 && (val & (0x3f << 26)) == (56u << 26))
6218 val |= value & mask;
6219 if (target_big_endian)
6220 bfd_putb16 ((bfd_vma) val, where);
6222 bfd_putl16 ((bfd_vma) val, where);
6226 case BFD_RELOC_PPC_B16_BRTAKEN:
6227 case BFD_RELOC_PPC_B16_BRNTAKEN:
6228 case BFD_RELOC_PPC_BA16_BRTAKEN:
6229 case BFD_RELOC_PPC_BA16_BRNTAKEN:
6232 case BFD_RELOC_PPC_TLS:
6233 case BFD_RELOC_PPC_TLSGD:
6234 case BFD_RELOC_PPC_TLSLD:
6237 case BFD_RELOC_PPC_DTPMOD:
6238 case BFD_RELOC_PPC_TPREL16:
6239 case BFD_RELOC_PPC_TPREL16_LO:
6240 case BFD_RELOC_PPC_TPREL16_HI:
6241 case BFD_RELOC_PPC_TPREL16_HA:
6242 case BFD_RELOC_PPC_TPREL:
6243 case BFD_RELOC_PPC_DTPREL16:
6244 case BFD_RELOC_PPC_DTPREL16_LO:
6245 case BFD_RELOC_PPC_DTPREL16_HI:
6246 case BFD_RELOC_PPC_DTPREL16_HA:
6247 case BFD_RELOC_PPC_DTPREL:
6248 case BFD_RELOC_PPC_GOT_TLSGD16:
6249 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
6250 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
6251 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
6252 case BFD_RELOC_PPC_GOT_TLSLD16:
6253 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
6254 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
6255 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
6256 case BFD_RELOC_PPC_GOT_TPREL16:
6257 case BFD_RELOC_PPC_GOT_TPREL16_LO:
6258 case BFD_RELOC_PPC_GOT_TPREL16_HI:
6259 case BFD_RELOC_PPC_GOT_TPREL16_HA:
6260 case BFD_RELOC_PPC_GOT_DTPREL16:
6261 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
6262 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
6263 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
6264 case BFD_RELOC_PPC64_TPREL16_DS:
6265 case BFD_RELOC_PPC64_TPREL16_LO_DS:
6266 case BFD_RELOC_PPC64_TPREL16_HIGHER:
6267 case BFD_RELOC_PPC64_TPREL16_HIGHERA:
6268 case BFD_RELOC_PPC64_TPREL16_HIGHEST:
6269 case BFD_RELOC_PPC64_TPREL16_HIGHESTA:
6270 case BFD_RELOC_PPC64_DTPREL16_DS:
6271 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
6272 case BFD_RELOC_PPC64_DTPREL16_HIGHER:
6273 case BFD_RELOC_PPC64_DTPREL16_HIGHERA:
6274 case BFD_RELOC_PPC64_DTPREL16_HIGHEST:
6275 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA:
6276 S_SET_THREAD_LOCAL (fixP->fx_addsy);
6279 /* Because SDA21 modifies the register field, the size is set to 4
6280 bytes, rather than 2, so offset it here appropriately. */
6281 case BFD_RELOC_PPC_EMB_SDA21:
6285 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where
6286 + ((target_big_endian) ? 2 : 0),
6293 /* This can occur if there is a bug in the input assembler, eg:
6294 ".byte <undefined_symbol> - ." */
6296 as_bad (_("Unable to handle reference to symbol %s"),
6297 S_GET_NAME (fixP->fx_addsy));
6299 as_bad (_("Unable to resolve expression"));
6303 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6307 case BFD_RELOC_24_PLT_PCREL:
6308 case BFD_RELOC_PPC_LOCAL24PC:
6309 if (!fixP->fx_pcrel && !fixP->fx_done)
6317 /* Fetch the instruction, insert the fully resolved operand
6318 value, and stuff the instruction back again. */
6319 where = fixP->fx_frag->fr_literal + fixP->fx_where;
6320 if (target_big_endian)
6321 insn = bfd_getb32 ((unsigned char *) where);
6323 insn = bfd_getl32 ((unsigned char *) where);
6324 if ((value & 3) != 0)
6325 as_bad_where (fixP->fx_file, fixP->fx_line,
6326 _("must branch to an address a multiple of 4"));
6327 if ((offsetT) value < -0x40000000
6328 || (offsetT) value >= 0x40000000)
6329 as_bad_where (fixP->fx_file, fixP->fx_line,
6330 _("@local or @plt branch destination is too far away, %ld bytes"),
6332 insn = insn | (value & 0x03fffffc);
6333 if (target_big_endian)
6334 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
6336 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
6340 case BFD_RELOC_VTABLE_INHERIT:
6343 && !S_IS_DEFINED (fixP->fx_addsy)
6344 && !S_IS_WEAK (fixP->fx_addsy))
6345 S_SET_WEAK (fixP->fx_addsy);
6348 case BFD_RELOC_VTABLE_ENTRY:
6353 /* Generated by reference to `sym@tocbase'. The sym is
6354 ignored by the linker. */
6355 case BFD_RELOC_PPC64_TOC:
6361 _("Gas failure, reloc value %d\n"), fixP->fx_r_type);
6368 fixP->fx_addnumber = value;
6370 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6371 from the section contents. If we are going to be emitting a reloc
6372 then the section contents are immaterial, so don't warn if they
6373 happen to overflow. Leave such warnings to ld. */
6375 fixP->fx_no_overflow = 1;
6377 if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
6378 fixP->fx_addnumber = 0;
6382 fixP->fx_addnumber = 0;
6384 /* We want to use the offset within the toc, not the actual VMA
6386 fixP->fx_addnumber =
6387 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy))
6388 - S_GET_VALUE (ppc_toc_csect);
6394 /* Generate a reloc for a fixup. */
6397 tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
6401 reloc = (arelent *) xmalloc (sizeof (arelent));
6403 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
6404 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
6405 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
6406 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
6407 if (reloc->howto == (reloc_howto_type *) NULL)
6409 as_bad_where (fixp->fx_file, fixp->fx_line,
6410 _("reloc %d not supported by object file format"),
6411 (int) fixp->fx_r_type);
6414 reloc->addend = fixp->fx_addnumber;
6420 ppc_cfi_frame_initial_instructions (void)
6422 cfi_add_CFA_def_cfa (1, 0);
6426 tc_ppc_regname_to_dw2regnum (char *regname)
6428 unsigned int regnum = -1;
6432 static struct { char *name; int dw2regnum; } regnames[] =
6434 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6435 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6436 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6437 { "spe_acc", 111 }, { "spefscr", 112 }
6440 for (i = 0; i < ARRAY_SIZE (regnames); ++i)
6441 if (strcmp (regnames[i].name, regname) == 0)
6442 return regnames[i].dw2regnum;
6444 if (regname[0] == 'r' || regname[0] == 'f' || regname[0] == 'v')
6446 p = regname + 1 + (regname[1] == '.');
6447 regnum = strtoul (p, &q, 10);
6448 if (p == q || *q || regnum >= 32)
6450 if (regname[0] == 'f')
6452 else if (regname[0] == 'v')
6455 else if (regname[0] == 'c' && regname[1] == 'r')
6457 p = regname + 2 + (regname[2] == '.');
6458 if (p[0] < '0' || p[0] > '7' || p[1])
6460 regnum = p[0] - '0' + 68;