1 /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000)
2 Copyright (C) 1994-2015 Free Software Foundation, Inc.
3 Written by Ian Lance Taylor, Cygnus Support.
5 This file is part of GAS, the GNU Assembler.
7 GAS is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 GAS is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GAS; see the file COPYING. If not, write to the Free
19 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
23 #include "safe-ctype.h"
25 #include "dw2gencfi.h"
26 #include "opcode/ppc.h"
30 #include "elf/ppc64.h"
31 #include "dwarf2dbg.h"
39 #include "coff/xcoff.h"
43 /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
45 /* Tell the main code what the endianness is. */
46 extern int target_big_endian;
48 /* Whether or not, we've set target_big_endian. */
49 static int set_target_endian = 0;
51 /* Whether to use user friendly register names. */
52 #ifndef TARGET_REG_NAMES_P
54 #define TARGET_REG_NAMES_P TRUE
56 #define TARGET_REG_NAMES_P FALSE
60 /* Macros for calculating LO, HI, HA, HIGHER, HIGHERA, HIGHEST,
63 /* #lo(value) denotes the least significant 16 bits of the indicated. */
64 #define PPC_LO(v) ((v) & 0xffff)
66 /* #hi(value) denotes bits 16 through 31 of the indicated value. */
67 #define PPC_HI(v) (((v) >> 16) & 0xffff)
69 /* #ha(value) denotes the high adjusted value: bits 16 through 31 of
70 the indicated value, compensating for #lo() being treated as a
72 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
74 /* #higher(value) denotes bits 32 through 47 of the indicated value. */
75 #define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff)
77 /* #highera(value) denotes bits 32 through 47 of the indicated value,
78 compensating for #lo() being treated as a signed number. */
79 #define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000)
81 /* #highest(value) denotes bits 48 through 63 of the indicated value. */
82 #define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff)
84 /* #highesta(value) denotes bits 48 through 63 of the indicated value,
85 compensating for #lo being treated as a signed number. */
86 #define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000)
88 #define SEX16(val) (((val) ^ 0x8000) - 0x8000)
90 /* For the time being on ppc64, don't report overflow on @h and @ha
91 applied to constants. */
92 #define REPORT_OVERFLOW_HI 0
94 static bfd_boolean reg_names_p = TARGET_REG_NAMES_P;
96 static void ppc_macro (char *, const struct powerpc_macro *);
97 static void ppc_byte (int);
99 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
100 static void ppc_tc (int);
101 static void ppc_machine (int);
105 static void ppc_comm (int);
106 static void ppc_bb (int);
107 static void ppc_bc (int);
108 static void ppc_bf (int);
109 static void ppc_biei (int);
110 static void ppc_bs (int);
111 static void ppc_eb (int);
112 static void ppc_ec (int);
113 static void ppc_ef (int);
114 static void ppc_es (int);
115 static void ppc_csect (int);
116 static void ppc_dwsect (int);
117 static void ppc_change_csect (symbolS *, offsetT);
118 static void ppc_function (int);
119 static void ppc_extern (int);
120 static void ppc_lglobl (int);
121 static void ppc_ref (int);
122 static void ppc_section (int);
123 static void ppc_named_section (int);
124 static void ppc_stabx (int);
125 static void ppc_rename (int);
126 static void ppc_toc (int);
127 static void ppc_xcoff_cons (int);
128 static void ppc_vbyte (int);
132 static void ppc_elf_rdata (int);
133 static void ppc_elf_lcomm (int);
134 static void ppc_elf_localentry (int);
135 static void ppc_elf_abiversion (int);
139 static void ppc_previous (int);
140 static void ppc_pdata (int);
141 static void ppc_ydata (int);
142 static void ppc_reldata (int);
143 static void ppc_rdata (int);
144 static void ppc_ualong (int);
145 static void ppc_znop (int);
146 static void ppc_pe_comm (int);
147 static void ppc_pe_section (int);
148 static void ppc_pe_function (int);
149 static void ppc_pe_tocd (int);
152 /* Generic assembler global variables which must be defined by all
156 /* This string holds the chars that always start a comment. If the
157 pre-processor is disabled, these aren't very useful. The macro
158 tc_comment_chars points to this. We use this, rather than the
159 usual comment_chars, so that we can switch for Solaris conventions. */
160 static const char ppc_solaris_comment_chars[] = "#!";
161 static const char ppc_eabi_comment_chars[] = "#";
163 #ifdef TARGET_SOLARIS_COMMENT
164 const char *ppc_comment_chars = ppc_solaris_comment_chars;
166 const char *ppc_comment_chars = ppc_eabi_comment_chars;
169 const char comment_chars[] = "#";
172 /* Characters which start a comment at the beginning of a line. */
173 const char line_comment_chars[] = "#";
175 /* Characters which may be used to separate multiple commands on a
177 const char line_separator_chars[] = ";";
179 /* Characters which are used to indicate an exponent in a floating
181 const char EXP_CHARS[] = "eE";
183 /* Characters which mean that a number is a floating point constant,
185 const char FLT_CHARS[] = "dD";
187 /* Anything that can start an operand needs to be mentioned here,
188 to stop the input scrubber eating whitespace. */
189 const char ppc_symbol_chars[] = "%[";
191 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
192 int ppc_cie_data_alignment;
194 /* The dwarf2 minimum instruction length. */
195 int ppc_dwarf2_line_min_insn_length;
197 /* More than this number of nops in an alignment op gets a branch
199 unsigned long nop_limit = 4;
201 /* The type of processor we are assembling for. This is one or more
202 of the PPC_OPCODE flags defined in opcode/ppc.h. */
203 ppc_cpu_t ppc_cpu = 0;
204 ppc_cpu_t sticky = 0;
206 /* Value for ELF e_flags EF_PPC64_ABI. */
207 unsigned int ppc_abiversion = 0;
209 /* Flags set on encountering toc relocs. */
211 has_large_toc_reloc = 1,
212 has_small_toc_reloc = 2
215 /* Warn on emitting data to code sections. */
217 unsigned long last_insn;
221 /* The target specific pseudo-ops which we support. */
223 const pseudo_typeS md_pseudo_table[] =
225 /* Pseudo-ops which must be overridden. */
226 { "byte", ppc_byte, 0 },
229 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
230 legitimately belong in the obj-*.c file. However, XCOFF is based
231 on COFF, and is only implemented for the RS/6000. We just use
232 obj-coff.c, and add what we need here. */
233 { "comm", ppc_comm, 0 },
234 { "lcomm", ppc_comm, 1 },
238 { "bi", ppc_biei, 0 },
240 { "csect", ppc_csect, 0 },
241 { "dwsect", ppc_dwsect, 0 },
242 { "data", ppc_section, 'd' },
246 { "ei", ppc_biei, 1 },
248 { "extern", ppc_extern, 0 },
249 { "function", ppc_function, 0 },
250 { "lglobl", ppc_lglobl, 0 },
251 { "ref", ppc_ref, 0 },
252 { "rename", ppc_rename, 0 },
253 { "section", ppc_named_section, 0 },
254 { "stabx", ppc_stabx, 0 },
255 { "text", ppc_section, 't' },
256 { "toc", ppc_toc, 0 },
257 { "long", ppc_xcoff_cons, 2 },
258 { "llong", ppc_xcoff_cons, 3 },
259 { "word", ppc_xcoff_cons, 1 },
260 { "short", ppc_xcoff_cons, 1 },
261 { "vbyte", ppc_vbyte, 0 },
265 { "llong", cons, 8 },
266 { "rdata", ppc_elf_rdata, 0 },
267 { "rodata", ppc_elf_rdata, 0 },
268 { "lcomm", ppc_elf_lcomm, 0 },
269 { "localentry", ppc_elf_localentry, 0 },
270 { "abiversion", ppc_elf_abiversion, 0 },
274 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
275 { "previous", ppc_previous, 0 },
276 { "pdata", ppc_pdata, 0 },
277 { "ydata", ppc_ydata, 0 },
278 { "reldata", ppc_reldata, 0 },
279 { "rdata", ppc_rdata, 0 },
280 { "ualong", ppc_ualong, 0 },
281 { "znop", ppc_znop, 0 },
282 { "comm", ppc_pe_comm, 0 },
283 { "lcomm", ppc_pe_comm, 1 },
284 { "section", ppc_pe_section, 0 },
285 { "function", ppc_pe_function,0 },
286 { "tocd", ppc_pe_tocd, 0 },
289 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
291 { "machine", ppc_machine, 0 },
298 /* Predefined register names if -mregnames (or default for Windows NT).
299 In general, there are lots of them, in an attempt to be compatible
300 with a number of other Windows NT assemblers. */
302 /* Structure to hold information about predefined registers. */
309 /* List of registers that are pre-defined:
311 Each general register has predefined names of the form:
312 1. r<reg_num> which has the value <reg_num>.
313 2. r.<reg_num> which has the value <reg_num>.
315 Each floating point register has predefined names of the form:
316 1. f<reg_num> which has the value <reg_num>.
317 2. f.<reg_num> which has the value <reg_num>.
319 Each vector unit register has predefined names of the form:
320 1. v<reg_num> which has the value <reg_num>.
321 2. v.<reg_num> which has the value <reg_num>.
323 Each condition register has predefined names of the form:
324 1. cr<reg_num> which has the value <reg_num>.
325 2. cr.<reg_num> which has the value <reg_num>.
327 There are individual registers as well:
328 sp or r.sp has the value 1
329 rtoc or r.toc has the value 2
330 fpscr has the value 0
336 dsisr has the value 18
338 sdr1 has the value 25
339 srr0 has the value 26
340 srr1 has the value 27
342 The table is sorted. Suitable for searching by a binary search. */
344 static const struct pd_reg pre_defined_registers[] =
346 { "cr.0", 0 }, /* Condition Registers */
366 { "dar", 19 }, /* Data Access Register */
367 { "dec", 22 }, /* Decrementer */
368 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
370 { "f.0", 0 }, /* Floating point registers */
397 { "f.32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
463 { "f32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
504 /* Quantization registers used with pair single instructions. */
522 { "lr", 8 }, /* Link Register */
526 { "r.0", 0 }, /* General Purpose Registers */
559 { "r.sp", 1 }, /* Stack Pointer */
561 { "r.toc", 2 }, /* Pointer to the table of contents */
563 { "r0", 0 }, /* More general purpose registers */
596 { "rtoc", 2 }, /* Table of contents */
598 { "sdr1", 25 }, /* Storage Description Register 1 */
602 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
603 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
605 { "v.0", 0 }, /* Vector (Altivec/VMX) registers */
671 { "vs.0", 0 }, /* Vector Scalar (VSX) registers (ISA 2.06). */
805 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
807 /* Given NAME, find the register number associated with that name, return
808 the integer value associated with the given name or -1 on failure. */
811 reg_name_search (const struct pd_reg *regs, int regcount, const char *name)
813 int middle, low, high;
821 middle = (low + high) / 2;
822 cmp = strcasecmp (name, regs[middle].name);
828 return regs[middle].value;
836 * Summary of register_name.
838 * in: Input_line_pointer points to 1st char of operand.
840 * out: A expressionS.
841 * The operand may have been a register: in this case, X_op == O_register,
842 * X_add_number is set to the register number, and truth is returned.
843 * Input_line_pointer->(next non-blank) char after operand, or is in its
848 register_name (expressionS *expressionP)
855 /* Find the spelling of the operand. */
856 start = name = input_line_pointer;
857 if (name[0] == '%' && ISALPHA (name[1]))
858 name = ++input_line_pointer;
860 else if (!reg_names_p || !ISALPHA (name[0]))
863 c = get_symbol_name (&name);
864 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
866 /* Put back the delimiting char. */
867 *input_line_pointer = c;
869 /* Look to see if it's in the register table. */
872 expressionP->X_op = O_register;
873 expressionP->X_add_number = reg_number;
875 /* Make the rest nice. */
876 expressionP->X_add_symbol = NULL;
877 expressionP->X_op_symbol = NULL;
881 /* Reset the line as if we had not done anything. */
882 input_line_pointer = start;
886 /* This function is called for each symbol seen in an expression. It
887 handles the special parsing which PowerPC assemblers are supposed
888 to use for condition codes. */
890 /* Whether to do the special parsing. */
891 static bfd_boolean cr_operand;
893 /* Names to recognize in a condition code. This table is sorted. */
894 static const struct pd_reg cr_names[] =
911 /* Parsing function. This returns non-zero if it recognized an
915 ppc_parse_name (const char *name, expressionS *exp)
924 val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0],
929 exp->X_op = O_constant;
930 exp->X_add_number = val;
935 /* Local variables. */
937 /* Whether to target xcoff64/elf64. */
938 static unsigned int ppc_obj64 = BFD_DEFAULT_TARGET_SIZE == 64;
940 /* Opcode hash table. */
941 static struct hash_control *ppc_hash;
943 /* Macro hash table. */
944 static struct hash_control *ppc_macro_hash;
947 /* What type of shared library support to use. */
948 static enum { SHLIB_NONE, SHLIB_PIC, SHLIB_MRELOCATABLE } shlib = SHLIB_NONE;
950 /* Flags to set in the elf header. */
951 static flagword ppc_flags = 0;
953 /* Whether this is Solaris or not. */
954 #ifdef TARGET_SOLARIS_COMMENT
955 #define SOLARIS_P TRUE
957 #define SOLARIS_P FALSE
960 static bfd_boolean msolaris = SOLARIS_P;
965 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
966 using a bunch of different sections. These assembler sections,
967 however, are all encompassed within the .text or .data sections of
968 the final output file. We handle this by using different
969 subsegments within these main segments. */
971 /* Next subsegment to allocate within the .text segment. */
972 static subsegT ppc_text_subsegment = 2;
974 /* Linked list of csects in the text section. */
975 static symbolS *ppc_text_csects;
977 /* Next subsegment to allocate within the .data segment. */
978 static subsegT ppc_data_subsegment = 2;
980 /* Linked list of csects in the data section. */
981 static symbolS *ppc_data_csects;
983 /* The current csect. */
984 static symbolS *ppc_current_csect;
986 /* The RS/6000 assembler uses a TOC which holds addresses of functions
987 and variables. Symbols are put in the TOC with the .tc pseudo-op.
988 A special relocation is used when accessing TOC entries. We handle
989 the TOC as a subsegment within the .data segment. We set it up if
990 we see a .toc pseudo-op, and save the csect symbol here. */
991 static symbolS *ppc_toc_csect;
993 /* The first frag in the TOC subsegment. */
994 static fragS *ppc_toc_frag;
996 /* The first frag in the first subsegment after the TOC in the .data
997 segment. NULL if there are no subsegments after the TOC. */
998 static fragS *ppc_after_toc_frag;
1000 /* The current static block. */
1001 static symbolS *ppc_current_block;
1003 /* The COFF debugging section; set by md_begin. This is not the
1004 .debug section, but is instead the secret BFD section which will
1005 cause BFD to set the section number of a symbol to N_DEBUG. */
1006 static asection *ppc_coff_debug_section;
1008 /* Structure to set the length field of the dwarf sections. */
1009 struct dw_subsection {
1010 /* Subsections are simply linked. */
1011 struct dw_subsection *link;
1013 /* The subsection number. */
1016 /* Expression to compute the length of the section. */
1017 expressionS end_exp;
1020 static struct dw_section {
1021 /* Corresponding section. */
1024 /* Simply linked list of subsections with a label. */
1025 struct dw_subsection *list_subseg;
1027 /* The anonymous subsection. */
1028 struct dw_subsection *anon_subseg;
1029 } dw_sections[XCOFF_DWSECT_NBR_NAMES];
1030 #endif /* OBJ_XCOFF */
1034 /* Various sections that we need for PE coff support. */
1035 static segT ydata_section;
1036 static segT pdata_section;
1037 static segT reldata_section;
1038 static segT rdata_section;
1039 static segT tocdata_section;
1041 /* The current section and the previous section. See ppc_previous. */
1042 static segT ppc_previous_section;
1043 static segT ppc_current_section;
1048 symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
1049 #define PPC_APUINFO_ISEL 0x40
1050 #define PPC_APUINFO_PMR 0x41
1051 #define PPC_APUINFO_RFMCI 0x42
1052 #define PPC_APUINFO_CACHELCK 0x43
1053 #define PPC_APUINFO_SPE 0x100
1054 #define PPC_APUINFO_EFS 0x101
1055 #define PPC_APUINFO_BRLOCK 0x102
1056 #define PPC_APUINFO_VLE 0x104
1059 * We keep a list of APUinfo
1061 unsigned long *ppc_apuinfo_list;
1062 unsigned int ppc_apuinfo_num;
1063 unsigned int ppc_apuinfo_num_alloc;
1064 #endif /* OBJ_ELF */
1067 const char *const md_shortopts = "b:l:usm:K:VQ:";
1069 const char *const md_shortopts = "um:";
1071 #define OPTION_NOPS (OPTION_MD_BASE + 0)
1072 const struct option md_longopts[] = {
1073 {"nops", required_argument, NULL, OPTION_NOPS},
1074 {"ppc476-workaround", no_argument, &warn_476, 1},
1075 {"no-ppc476-workaround", no_argument, &warn_476, 0},
1076 {NULL, no_argument, NULL, 0}
1078 const size_t md_longopts_size = sizeof (md_longopts);
1081 md_parse_option (int c, char *arg)
1088 /* -u means that any undefined symbols should be treated as
1089 external, which is the default for gas anyhow. */
1094 /* Solaris as takes -le (presumably for little endian). For completeness
1095 sake, recognize -be also. */
1096 if (strcmp (arg, "e") == 0)
1098 target_big_endian = 0;
1099 set_target_endian = 1;
1100 if (ppc_cpu & PPC_OPCODE_VLE)
1101 as_bad (_("the use of -mvle requires big endian."));
1109 if (strcmp (arg, "e") == 0)
1111 target_big_endian = 1;
1112 set_target_endian = 1;
1120 /* Recognize -K PIC. */
1121 if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
1124 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1132 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
1134 if (strcmp (arg, "64") == 0)
1138 if (ppc_cpu & PPC_OPCODE_VLE)
1139 as_bad (_("the use of -mvle requires -a32."));
1141 as_fatal (_("%s unsupported"), "-a64");
1144 else if (strcmp (arg, "32") == 0)
1151 new_cpu = ppc_parse_cpu (ppc_cpu, &sticky, arg);
1155 if (strcmp (arg, "vle") == 0)
1157 if (set_target_endian && target_big_endian == 0)
1158 as_bad (_("the use of -mvle requires big endian."));
1160 as_bad (_("the use of -mvle requires -a32."));
1164 else if (strcmp (arg, "regnames") == 0)
1167 else if (strcmp (arg, "no-regnames") == 0)
1168 reg_names_p = FALSE;
1171 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1172 that require relocation. */
1173 else if (strcmp (arg, "relocatable") == 0)
1175 shlib = SHLIB_MRELOCATABLE;
1176 ppc_flags |= EF_PPC_RELOCATABLE;
1179 else if (strcmp (arg, "relocatable-lib") == 0)
1181 shlib = SHLIB_MRELOCATABLE;
1182 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1185 /* -memb, set embedded bit. */
1186 else if (strcmp (arg, "emb") == 0)
1187 ppc_flags |= EF_PPC_EMB;
1189 /* -mlittle/-mbig set the endianness. */
1190 else if (strcmp (arg, "little") == 0
1191 || strcmp (arg, "little-endian") == 0)
1193 target_big_endian = 0;
1194 set_target_endian = 1;
1195 if (ppc_cpu & PPC_OPCODE_VLE)
1196 as_bad (_("the use of -mvle requires big endian."));
1199 else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0)
1201 target_big_endian = 1;
1202 set_target_endian = 1;
1205 else if (strcmp (arg, "solaris") == 0)
1208 ppc_comment_chars = ppc_solaris_comment_chars;
1211 else if (strcmp (arg, "no-solaris") == 0)
1214 ppc_comment_chars = ppc_eabi_comment_chars;
1219 as_bad (_("invalid switch -m%s"), arg);
1225 /* -V: SVR4 argument to print version ID. */
1227 print_version_id ();
1230 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1231 should be emitted or not. FIXME: Not implemented. */
1235 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1236 rather than .stabs.excl, which is ignored by the linker.
1237 FIXME: Not implemented. */
1248 nop_limit = strtoul (optarg, &end, 0);
1250 as_bad (_("--nops needs a numeric argument"));
1265 md_show_usage (FILE *stream)
1267 fprintf (stream, _("\
1269 -a32 generate ELF32/XCOFF32\n\
1270 -a64 generate ELF64/XCOFF64\n\
1272 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1273 -mpwr generate code for POWER (RIOS1)\n\
1274 -m601 generate code for PowerPC 601\n\
1275 -mppc, -mppc32, -m603, -m604\n\
1276 generate code for PowerPC 603/604\n\
1277 -m403 generate code for PowerPC 403\n\
1278 -m405 generate code for PowerPC 405\n\
1279 -m440 generate code for PowerPC 440\n\
1280 -m464 generate code for PowerPC 464\n\
1281 -m476 generate code for PowerPC 476\n\
1282 -m7400, -m7410, -m7450, -m7455\n\
1283 generate code for PowerPC 7400/7410/7450/7455\n\
1284 -m750cl generate code for PowerPC 750cl\n\
1285 -m821, -m850, -m860 generate code for PowerPC 821/850/860\n"));
1286 fprintf (stream, _("\
1287 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1288 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1289 -mbooke generate code for 32-bit PowerPC BookE\n\
1290 -ma2 generate code for A2 architecture\n\
1291 -mpower4, -mpwr4 generate code for Power4 architecture\n\
1292 -mpower5, -mpwr5, -mpwr5x\n\
1293 generate code for Power5 architecture\n\
1294 -mpower6, -mpwr6 generate code for Power6 architecture\n\
1295 -mpower7, -mpwr7 generate code for Power7 architecture\n\
1296 -mpower8, -mpwr8 generate code for Power8 architecture\n\
1297 -mpower9, -mpwr9 generate code for Power9 architecture\n\
1298 -mcell generate code for Cell Broadband Engine architecture\n\
1299 -mcom generate code Power/PowerPC common instructions\n\
1300 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1301 fprintf (stream, _("\
1302 -maltivec generate code for AltiVec\n\
1303 -mvsx generate code for Vector-Scalar (VSX) instructions\n\
1304 -mhtm generate code for Hardware Transactional Memory\n\
1305 -me300 generate code for PowerPC e300 family\n\
1306 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1307 -me500mc, generate code for Freescale e500mc core complex\n\
1308 -me500mc64, generate code for Freescale e500mc64 core complex\n\
1309 -me5500, generate code for Freescale e5500 core complex\n\
1310 -me6500, generate code for Freescale e6500 core complex\n\
1311 -mspe generate code for Motorola SPE instructions\n\
1312 -mvle generate code for Freescale VLE instructions\n\
1313 -mtitan generate code for AppliedMicro Titan core complex\n\
1314 -mregnames Allow symbolic names for registers\n\
1315 -mno-regnames Do not allow symbolic names for registers\n"));
1317 fprintf (stream, _("\
1318 -mrelocatable support for GCC's -mrelocatble option\n\
1319 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1320 -memb set PPC_EMB bit in ELF flags\n\
1321 -mlittle, -mlittle-endian, -le\n\
1322 generate code for a little endian machine\n\
1323 -mbig, -mbig-endian, -be\n\
1324 generate code for a big endian machine\n\
1325 -msolaris generate code for Solaris\n\
1326 -mno-solaris do not generate code for Solaris\n\
1327 -K PIC set EF_PPC_RELOCATABLE_LIB in ELF flags\n\
1328 -V print assembler version number\n\
1329 -Qy, -Qn ignored\n"));
1331 fprintf (stream, _("\
1332 -nops=count when aligning, more than COUNT nops uses a branch\n\
1333 -ppc476-workaround warn if emitting data to code sections\n"));
1336 /* Set ppc_cpu if it is not already set. */
1341 const char *default_os = TARGET_OS;
1342 const char *default_cpu = TARGET_CPU;
1344 if ((ppc_cpu & ~(ppc_cpu_t) PPC_OPCODE_ANY) == 0)
1347 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_64;
1348 else if (strncmp (default_os, "aix", 3) == 0
1349 && default_os[3] >= '4' && default_os[3] <= '9')
1350 ppc_cpu |= PPC_OPCODE_COMMON;
1351 else if (strncmp (default_os, "aix3", 4) == 0)
1352 ppc_cpu |= PPC_OPCODE_POWER;
1353 else if (strcmp (default_cpu, "rs6000") == 0)
1354 ppc_cpu |= PPC_OPCODE_POWER;
1355 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1356 ppc_cpu |= PPC_OPCODE_PPC;
1358 as_fatal (_("unknown default cpu = %s, os = %s"),
1359 default_cpu, default_os);
1363 /* Figure out the BFD architecture to use. This function and ppc_mach
1364 are called well before md_begin, when the output file is opened. */
1366 enum bfd_architecture
1369 const char *default_cpu = TARGET_CPU;
1372 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1373 return bfd_arch_powerpc;
1374 if ((ppc_cpu & PPC_OPCODE_VLE) != 0)
1375 return bfd_arch_powerpc;
1376 if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1377 return bfd_arch_rs6000;
1378 if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1380 if (strcmp (default_cpu, "rs6000") == 0)
1381 return bfd_arch_rs6000;
1382 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1383 return bfd_arch_powerpc;
1386 as_fatal (_("neither Power nor PowerPC opcodes were selected."));
1387 return bfd_arch_unknown;
1394 return bfd_mach_ppc64;
1395 else if (ppc_arch () == bfd_arch_rs6000)
1396 return bfd_mach_rs6k;
1397 else if (ppc_cpu & PPC_OPCODE_TITAN)
1398 return bfd_mach_ppc_titan;
1399 else if (ppc_cpu & PPC_OPCODE_VLE)
1400 return bfd_mach_ppc_vle;
1402 return bfd_mach_ppc;
1406 ppc_target_format (void)
1410 return target_big_endian ? "pe-powerpc" : "pe-powerpcle";
1412 return "xcoff-powermac";
1415 return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000");
1417 return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000");
1423 return (ppc_obj64 ? "elf64-powerpc-freebsd" : "elf32-powerpc-freebsd");
1424 # elif defined (TE_VXWORKS)
1425 return "elf32-powerpc-vxworks";
1427 return (target_big_endian
1428 ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc")
1429 : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle"));
1434 /* Validate one entry in powerpc_opcodes[] or vle_opcodes[].
1435 Return TRUE if there's a problem, otherwise FALSE. */
1438 insn_validate (const struct powerpc_opcode *op)
1440 const unsigned char *o;
1441 unsigned long omask = op->mask;
1443 /* The mask had better not trim off opcode bits. */
1444 if ((op->opcode & omask) != op->opcode)
1446 as_bad (_("mask trims opcode bits for %s"), op->name);
1450 /* The operands must not overlap the opcode or each other. */
1451 for (o = op->operands; *o; ++o)
1453 if (*o >= num_powerpc_operands)
1455 as_bad (_("operand index error for %s"), op->name);
1460 const struct powerpc_operand *operand = &powerpc_operands[*o];
1461 if (operand->shift != (int) PPC_OPSHIFT_INV)
1465 if (operand->shift >= 0)
1466 mask = operand->bitm << operand->shift;
1468 mask = operand->bitm >> -operand->shift;
1471 as_bad (_("operand %d overlap in %s"),
1472 (int) (o - op->operands), op->name);
1482 /* Insert opcodes and macros into hash tables. Called at startup and
1483 for .machine pseudo. */
1486 ppc_setup_opcodes (void)
1488 const struct powerpc_opcode *op;
1489 const struct powerpc_opcode *op_end;
1490 const struct powerpc_macro *macro;
1491 const struct powerpc_macro *macro_end;
1492 bfd_boolean bad_insn = FALSE;
1494 if (ppc_hash != NULL)
1495 hash_die (ppc_hash);
1496 if (ppc_macro_hash != NULL)
1497 hash_die (ppc_macro_hash);
1499 /* Insert the opcodes into a hash table. */
1500 ppc_hash = hash_new ();
1502 if (ENABLE_CHECKING)
1506 /* An index into powerpc_operands is stored in struct fix
1507 fx_pcrel_adjust which is 8 bits wide. */
1508 gas_assert (num_powerpc_operands < 256);
1510 /* Check operand masks. Code here and in the disassembler assumes
1511 all the 1's in the mask are contiguous. */
1512 for (i = 0; i < num_powerpc_operands; ++i)
1514 unsigned long mask = powerpc_operands[i].bitm;
1515 unsigned long right_bit;
1518 right_bit = mask & -mask;
1520 right_bit = mask & -mask;
1521 if (mask != right_bit)
1523 as_bad (_("powerpc_operands[%d].bitm invalid"), i);
1526 for (j = i + 1; j < num_powerpc_operands; ++j)
1527 if (memcmp (&powerpc_operands[i], &powerpc_operands[j],
1528 sizeof (powerpc_operands[0])) == 0)
1530 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1537 op_end = powerpc_opcodes + powerpc_num_opcodes;
1538 for (op = powerpc_opcodes; op < op_end; op++)
1540 if (ENABLE_CHECKING)
1542 if (op != powerpc_opcodes)
1544 int old_opcode = PPC_OP (op[-1].opcode);
1545 int new_opcode = PPC_OP (op[0].opcode);
1547 #ifdef PRINT_OPCODE_TABLE
1548 printf ("%-14s\t#%04u\tmajor op: 0x%x\top: 0x%x\tmask: 0x%x\tflags: 0x%llx\n",
1549 op->name, (unsigned int) (op - powerpc_opcodes),
1550 (unsigned int) new_opcode, (unsigned int) op->opcode,
1551 (unsigned int) op->mask, (unsigned long long) op->flags);
1554 /* The major opcodes had better be sorted. Code in the
1555 disassembler assumes the insns are sorted according to
1557 if (new_opcode < old_opcode)
1559 as_bad (_("major opcode is not sorted for %s"),
1564 bad_insn |= insn_validate (op);
1567 if ((ppc_cpu & op->flags) != 0
1568 && !(ppc_cpu & op->deprecated))
1572 retval = hash_insert (ppc_hash, op->name, (void *) op);
1575 as_bad (_("duplicate instruction %s"),
1582 if ((ppc_cpu & PPC_OPCODE_ANY) != 0)
1583 for (op = powerpc_opcodes; op < op_end; op++)
1584 hash_insert (ppc_hash, op->name, (void *) op);
1586 op_end = vle_opcodes + vle_num_opcodes;
1587 for (op = vle_opcodes; op < op_end; op++)
1589 if (ENABLE_CHECKING)
1591 if (op != vle_opcodes)
1593 unsigned old_seg, new_seg;
1595 old_seg = VLE_OP (op[-1].opcode, op[-1].mask);
1596 old_seg = VLE_OP_TO_SEG (old_seg);
1597 new_seg = VLE_OP (op[0].opcode, op[0].mask);
1598 new_seg = VLE_OP_TO_SEG (new_seg);
1600 #ifdef PRINT_OPCODE_TABLE
1601 printf ("%-14s\t#%04u\tmajor op: 0x%x\top: 0x%x\tmask: 0x%x\tflags: 0x%llx\n",
1602 op->name, (unsigned int) (op - powerpc_opcodes),
1603 (unsigned int) new_seg, (unsigned int) op->opcode,
1604 (unsigned int) op->mask, (unsigned long long) op->flags);
1606 /* The major opcodes had better be sorted. Code in the
1607 disassembler assumes the insns are sorted according to
1609 if (new_seg < old_seg)
1611 as_bad (_("major opcode is not sorted for %s"),
1617 bad_insn |= insn_validate (op);
1620 if ((ppc_cpu & op->flags) != 0
1621 && !(ppc_cpu & op->deprecated))
1625 retval = hash_insert (ppc_hash, op->name, (void *) op);
1628 as_bad (_("duplicate instruction %s"),
1635 if ((ppc_cpu & PPC_OPCODE_VLE) != 0)
1636 for (op = vle_opcodes; op < op_end; op++)
1637 hash_insert (ppc_hash, op->name, (void *) op);
1639 /* Insert the macros into a hash table. */
1640 ppc_macro_hash = hash_new ();
1642 macro_end = powerpc_macros + powerpc_num_macros;
1643 for (macro = powerpc_macros; macro < macro_end; macro++)
1645 if ((macro->flags & ppc_cpu) != 0 || (ppc_cpu & PPC_OPCODE_ANY) != 0)
1649 retval = hash_insert (ppc_macro_hash, macro->name, (void *) macro);
1650 if (retval != (const char *) NULL)
1652 as_bad (_("duplicate macro %s"), macro->name);
1662 /* This function is called when the assembler starts up. It is called
1663 after the options have been parsed and the output file has been
1671 ppc_cie_data_alignment = ppc_obj64 ? -8 : -4;
1672 ppc_dwarf2_line_min_insn_length = (ppc_cpu & PPC_OPCODE_VLE) ? 2 : 4;
1675 /* Set the ELF flags if desired. */
1676 if (ppc_flags && !msolaris)
1677 bfd_set_private_flags (stdoutput, ppc_flags);
1680 ppc_setup_opcodes ();
1682 /* Tell the main code what the endianness is if it is not overridden
1684 if (!set_target_endian)
1686 set_target_endian = 1;
1687 target_big_endian = PPC_BIG_ENDIAN;
1691 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1693 /* Create dummy symbols to serve as initial csects. This forces the
1694 text csects to precede the data csects. These symbols will not
1696 ppc_text_csects = symbol_make ("dummy\001");
1697 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
1698 ppc_data_csects = symbol_make ("dummy\001");
1699 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
1704 ppc_current_section = text_section;
1705 ppc_previous_section = 0;
1714 if (ppc_apuinfo_list == NULL)
1717 /* Ok, so write the section info out. We have this layout:
1721 0 8 length of "APUinfo\0"
1722 4 (n*4) number of APU's (4 bytes each)
1725 20 APU#1 first APU's info
1726 24 APU#2 second APU's info
1731 asection *seg = now_seg;
1732 subsegT subseg = now_subseg;
1733 asection *apuinfo_secp = (asection *) NULL;
1736 /* Create the .PPC.EMB.apuinfo section. */
1737 apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0);
1738 bfd_set_section_flags (stdoutput,
1740 SEC_HAS_CONTENTS | SEC_READONLY);
1743 md_number_to_chars (p, (valueT) 8, 4);
1746 md_number_to_chars (p, (valueT) ppc_apuinfo_num * 4, 4);
1749 md_number_to_chars (p, (valueT) 2, 4);
1752 strcpy (p, "APUinfo");
1754 for (i = 0; i < ppc_apuinfo_num; i++)
1757 md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4);
1760 frag_align (2, 0, 0);
1762 /* We probably can't restore the current segment, for there likely
1765 subseg_set (seg, subseg);
1770 /* Insert an operand value into an instruction. */
1772 static unsigned long
1773 ppc_insert_operand (unsigned long insn,
1774 const struct powerpc_operand *operand,
1780 long min, max, right;
1782 max = operand->bitm;
1786 if ((operand->flags & PPC_OPERAND_SIGNOPT) != 0)
1788 /* Extend the allowed range for addis to [-65536, 65535].
1789 Similarly for some VLE high part insns. For 64-bit it
1790 would be good to disable this for signed fields since the
1791 value is sign extended into the high 32 bits of the register.
1792 If the value is, say, an address, then we might care about
1793 the high bits. However, gcc as of 2014-06 uses unsigned
1794 values when loading the high part of 64-bit constants using
1796 Use the same extended range for cmpli, to allow at least
1798 min = ~max & -right;
1800 else if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1802 max = (max >> 1) & -right;
1803 min = ~max & -right;
1806 if ((operand->flags & PPC_OPERAND_PLUS1) != 0)
1809 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1818 /* Some people write constants with the sign extension done by
1819 hand but only up to 32 bits. This shouldn't really be valid,
1820 but, to permit this code to assemble on a 64-bit host, we
1821 sign extend the 32-bit value to 64 bits if so doing makes the
1824 && (offsetT) (val - 0x80000000 - 0x80000000) >= min
1825 && (offsetT) (val - 0x80000000 - 0x80000000) <= max
1826 && ((val - 0x80000000 - 0x80000000) & (right - 1)) == 0)
1827 val = val - 0x80000000 - 0x80000000;
1829 /* Similarly, people write expressions like ~(1<<15), and expect
1830 this to be OK for a 32-bit unsigned value. */
1832 && (offsetT) (val + 0x80000000 + 0x80000000) >= min
1833 && (offsetT) (val + 0x80000000 + 0x80000000) <= max
1834 && ((val + 0x80000000 + 0x80000000) & (right - 1)) == 0)
1835 val = val + 0x80000000 + 0x80000000;
1839 || (val & (right - 1)) != 0)
1840 as_bad_value_out_of_range (_("operand"), val, min, max, file, line);
1843 if (operand->insert)
1848 insn = (*operand->insert) (insn, (long) val, cpu, &errmsg);
1849 if (errmsg != (const char *) NULL)
1850 as_bad_where (file, line, "%s", errmsg);
1852 else if (operand->shift >= 0)
1853 insn |= ((long) val & operand->bitm) << operand->shift;
1855 insn |= ((long) val & operand->bitm) >> -operand->shift;
1862 /* Parse @got, etc. and return the desired relocation. */
1863 static bfd_reloc_code_real_type
1864 ppc_elf_suffix (char **str_p, expressionS *exp_p)
1868 unsigned int length : 8;
1869 unsigned int valid32 : 1;
1870 unsigned int valid64 : 1;
1879 const struct map_bfd *ptr;
1881 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1882 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1883 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1885 static const struct map_bfd mapping[] = {
1886 MAP ("l", BFD_RELOC_LO16),
1887 MAP ("h", BFD_RELOC_HI16),
1888 MAP ("ha", BFD_RELOC_HI16_S),
1889 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN),
1890 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN),
1891 MAP ("got", BFD_RELOC_16_GOTOFF),
1892 MAP ("got@l", BFD_RELOC_LO16_GOTOFF),
1893 MAP ("got@h", BFD_RELOC_HI16_GOTOFF),
1894 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF),
1895 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF),
1896 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF),
1897 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF),
1898 MAP ("copy", BFD_RELOC_PPC_COPY),
1899 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT),
1900 MAP ("sectoff", BFD_RELOC_16_BASEREL),
1901 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL),
1902 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL),
1903 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL),
1904 MAP ("tls", BFD_RELOC_PPC_TLS),
1905 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD),
1906 MAP ("dtprel", BFD_RELOC_PPC_DTPREL),
1907 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO),
1908 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI),
1909 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA),
1910 MAP ("tprel", BFD_RELOC_PPC_TPREL),
1911 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO),
1912 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI),
1913 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA),
1914 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16),
1915 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO),
1916 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI),
1917 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA),
1918 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16),
1919 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO),
1920 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI),
1921 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA),
1922 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16),
1923 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO),
1924 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI),
1925 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA),
1926 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16),
1927 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO),
1928 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI),
1929 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA),
1930 MAP32 ("fixup", BFD_RELOC_CTOR),
1931 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL),
1932 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL),
1933 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC),
1934 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC),
1935 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL),
1936 MAP32 ("sdarel", BFD_RELOC_GPREL16),
1937 MAP32 ("sdarel@l", BFD_RELOC_PPC_VLE_SDAREL_LO16A),
1938 MAP32 ("sdarel@h", BFD_RELOC_PPC_VLE_SDAREL_HI16A),
1939 MAP32 ("sdarel@ha", BFD_RELOC_PPC_VLE_SDAREL_HA16A),
1940 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32),
1941 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16),
1942 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO),
1943 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI),
1944 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA),
1945 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16),
1946 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL),
1947 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16),
1948 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21),
1949 MAP32 ("sda21@l", BFD_RELOC_PPC_VLE_SDA21_LO),
1950 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF),
1951 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16),
1952 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO),
1953 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI),
1954 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA),
1955 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD),
1956 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA),
1957 MAP32 ("xgot", BFD_RELOC_PPC_TOC16),
1958 MAP64 ("high", BFD_RELOC_PPC64_ADDR16_HIGH),
1959 MAP64 ("higha", BFD_RELOC_PPC64_ADDR16_HIGHA),
1960 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER),
1961 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S),
1962 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST),
1963 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S),
1964 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC),
1965 MAP64 ("toc", BFD_RELOC_PPC_TOC16),
1966 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO),
1967 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI),
1968 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA),
1969 MAP64 ("dtprel@high", BFD_RELOC_PPC64_DTPREL16_HIGH),
1970 MAP64 ("dtprel@higha", BFD_RELOC_PPC64_DTPREL16_HIGHA),
1971 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER),
1972 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA),
1973 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST),
1974 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA),
1975 MAP64 ("localentry", BFD_RELOC_PPC64_ADDR64_LOCAL),
1976 MAP64 ("tprel@high", BFD_RELOC_PPC64_TPREL16_HIGH),
1977 MAP64 ("tprel@higha", BFD_RELOC_PPC64_TPREL16_HIGHA),
1978 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER),
1979 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA),
1980 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST),
1981 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA),
1982 { (char *) 0, 0, 0, 0, BFD_RELOC_NONE }
1986 return BFD_RELOC_NONE;
1988 for (ch = *str, str2 = ident;
1989 (str2 < ident + sizeof (ident) - 1
1990 && (ISALNUM (ch) || ch == '@'));
1993 *str2++ = TOLOWER (ch);
2000 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
2001 if (ch == ptr->string[0]
2002 && len == ptr->length
2003 && memcmp (ident, ptr->string, ptr->length) == 0
2004 && (ppc_obj64 ? ptr->valid64 : ptr->valid32))
2006 int reloc = ptr->reloc;
2008 if (!ppc_obj64 && exp_p->X_add_number != 0)
2012 case BFD_RELOC_16_GOTOFF:
2013 case BFD_RELOC_LO16_GOTOFF:
2014 case BFD_RELOC_HI16_GOTOFF:
2015 case BFD_RELOC_HI16_S_GOTOFF:
2016 as_warn (_("identifier+constant@got means "
2017 "identifier@got+constant"));
2020 case BFD_RELOC_PPC_GOT_TLSGD16:
2021 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
2022 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
2023 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
2024 case BFD_RELOC_PPC_GOT_TLSLD16:
2025 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
2026 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
2027 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
2028 case BFD_RELOC_PPC_GOT_DTPREL16:
2029 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
2030 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
2031 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
2032 case BFD_RELOC_PPC_GOT_TPREL16:
2033 case BFD_RELOC_PPC_GOT_TPREL16_LO:
2034 case BFD_RELOC_PPC_GOT_TPREL16_HI:
2035 case BFD_RELOC_PPC_GOT_TPREL16_HA:
2036 as_bad (_("symbol+offset not supported for got tls"));
2041 /* Now check for identifier@suffix+constant. */
2042 if (*str == '-' || *str == '+')
2044 char *orig_line = input_line_pointer;
2045 expressionS new_exp;
2047 input_line_pointer = str;
2048 expression (&new_exp);
2049 if (new_exp.X_op == O_constant)
2051 exp_p->X_add_number += new_exp.X_add_number;
2052 str = input_line_pointer;
2055 if (&input_line_pointer != str_p)
2056 input_line_pointer = orig_line;
2060 if (reloc == (int) BFD_RELOC_PPC64_TOC
2061 && exp_p->X_op == O_symbol
2062 && strcmp (S_GET_NAME (exp_p->X_add_symbol), ".TOC.") == 0)
2064 /* Change the symbol so that the dummy .TOC. symbol can be
2065 omitted from the object file. */
2066 exp_p->X_add_symbol = &abs_symbol;
2069 return (bfd_reloc_code_real_type) reloc;
2072 return BFD_RELOC_NONE;
2075 /* Support @got, etc. on constants emitted via .short, .int etc. */
2077 bfd_reloc_code_real_type
2078 ppc_elf_parse_cons (expressionS *exp, unsigned int nbytes)
2081 if (nbytes >= 2 && *input_line_pointer == '@')
2082 return ppc_elf_suffix (&input_line_pointer, exp);
2083 return BFD_RELOC_NONE;
2086 /* Warn when emitting data to code sections, unless we are emitting
2087 a relocation that ld --ppc476-workaround uses to recognise data
2088 *and* there was an unconditional branch prior to the data. */
2091 ppc_elf_cons_fix_check (expressionS *exp ATTRIBUTE_UNUSED,
2092 unsigned int nbytes, fixS *fix)
2095 && (now_seg->flags & SEC_CODE) != 0
2098 || !(fix->fx_r_type == BFD_RELOC_32
2099 || fix->fx_r_type == BFD_RELOC_CTOR
2100 || fix->fx_r_type == BFD_RELOC_32_PCREL)
2101 || !(last_seg == now_seg && last_subseg == now_subseg)
2102 || !((last_insn & (0x3f << 26)) == (18u << 26)
2103 || ((last_insn & (0x3f << 26)) == (16u << 26)
2104 && (last_insn & (0x14 << 21)) == (0x14 << 21))
2105 || ((last_insn & (0x3f << 26)) == (19u << 26)
2106 && (last_insn & (0x3ff << 1)) == (16u << 1)
2107 && (last_insn & (0x14 << 21)) == (0x14 << 21)))))
2109 /* Flag that we've warned. */
2113 as_warn (_("data in executable section"));
2117 /* Solaris pseduo op to change to the .rodata section. */
2119 ppc_elf_rdata (int xxx)
2121 char *save_line = input_line_pointer;
2122 static char section[] = ".rodata\n";
2124 /* Just pretend this is .section .rodata */
2125 input_line_pointer = section;
2126 obj_elf_section (xxx);
2128 input_line_pointer = save_line;
2131 /* Pseudo op to make file scope bss items. */
2133 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED)
2146 c = get_symbol_name (&name);
2148 /* Just after name is now '\0'. */
2149 p = input_line_pointer;
2151 SKIP_WHITESPACE_AFTER_NAME ();
2152 if (*input_line_pointer != ',')
2154 as_bad (_("expected comma after symbol-name: rest of line ignored."));
2155 ignore_rest_of_line ();
2159 input_line_pointer++; /* skip ',' */
2160 if ((size = get_absolute_expression ()) < 0)
2162 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
2163 ignore_rest_of_line ();
2167 /* The third argument to .lcomm is the alignment. */
2168 if (*input_line_pointer != ',')
2172 ++input_line_pointer;
2173 align = get_absolute_expression ();
2176 as_warn (_("ignoring bad alignment"));
2182 symbolP = symbol_find_or_make (name);
2185 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
2187 as_bad (_("ignoring attempt to re-define symbol `%s'."),
2188 S_GET_NAME (symbolP));
2189 ignore_rest_of_line ();
2193 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
2195 as_bad (_("length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
2196 S_GET_NAME (symbolP),
2197 (long) S_GET_VALUE (symbolP),
2200 ignore_rest_of_line ();
2206 old_subsec = now_subseg;
2209 /* Convert to a power of 2 alignment. */
2210 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
2213 as_bad (_("common alignment not a power of 2"));
2214 ignore_rest_of_line ();
2221 record_alignment (bss_section, align2);
2222 subseg_set (bss_section, 1);
2224 frag_align (align2, 0, 0);
2225 if (S_GET_SEGMENT (symbolP) == bss_section)
2226 symbol_get_frag (symbolP)->fr_symbol = 0;
2227 symbol_set_frag (symbolP, frag_now);
2228 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
2231 S_SET_SIZE (symbolP, size);
2232 S_SET_SEGMENT (symbolP, bss_section);
2233 subseg_set (old_sec, old_subsec);
2234 demand_empty_rest_of_line ();
2237 /* Pseudo op to set symbol local entry point. */
2239 ppc_elf_localentry (int ignore ATTRIBUTE_UNUSED)
2242 char c = get_symbol_name (&name);
2247 elf_symbol_type *elfsym;
2249 p = input_line_pointer;
2251 SKIP_WHITESPACE_AFTER_NAME ();
2252 if (*input_line_pointer != ',')
2255 as_bad (_("expected comma after name `%s' in .localentry directive"),
2258 ignore_rest_of_line ();
2261 input_line_pointer++;
2263 if (exp.X_op == O_absent)
2265 as_bad (_("missing expression in .localentry directive"));
2266 exp.X_op = O_constant;
2267 exp.X_add_number = 0;
2270 sym = symbol_find_or_make (name);
2273 if (resolve_expression (&exp)
2274 && exp.X_op == O_constant)
2276 unsigned char encoded = PPC64_SET_LOCAL_ENTRY_OFFSET (exp.X_add_number);
2278 if (exp.X_add_number != (offsetT) PPC64_LOCAL_ENTRY_OFFSET (encoded))
2279 as_bad (_(".localentry expression for `%s' "
2280 "is not a valid power of 2"), S_GET_NAME (sym));
2283 bfdsym = symbol_get_bfdsym (sym);
2284 elfsym = elf_symbol_from (bfd_asymbol_bfd (bfdsym), bfdsym);
2285 gas_assert (elfsym);
2286 elfsym->internal_elf_sym.st_other &= ~STO_PPC64_LOCAL_MASK;
2287 elfsym->internal_elf_sym.st_other |= encoded;
2288 if (ppc_abiversion == 0)
2293 as_bad (_(".localentry expression for `%s' "
2294 "does not evaluate to a constant"), S_GET_NAME (sym));
2296 demand_empty_rest_of_line ();
2299 /* Pseudo op to set ABI version. */
2301 ppc_elf_abiversion (int ignore ATTRIBUTE_UNUSED)
2306 if (exp.X_op == O_absent)
2308 as_bad (_("missing expression in .abiversion directive"));
2309 exp.X_op = O_constant;
2310 exp.X_add_number = 0;
2313 if (resolve_expression (&exp)
2314 && exp.X_op == O_constant)
2315 ppc_abiversion = exp.X_add_number;
2317 as_bad (_(".abiversion expression does not evaluate to a constant"));
2318 demand_empty_rest_of_line ();
2321 /* Set ABI version in output file. */
2325 if (ppc_obj64 && ppc_abiversion != 0)
2327 elf_elfheader (stdoutput)->e_flags &= ~EF_PPC64_ABI;
2328 elf_elfheader (stdoutput)->e_flags |= ppc_abiversion & EF_PPC64_ABI;
2332 /* Validate any relocations emitted for -mrelocatable, possibly adding
2333 fixups for word relocations in writable segments, so we can adjust
2336 ppc_elf_validate_fix (fixS *fixp, segT seg)
2338 if (fixp->fx_done || fixp->fx_pcrel)
2347 case SHLIB_MRELOCATABLE:
2348 if (fixp->fx_r_type != BFD_RELOC_16_GOTOFF
2349 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
2350 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
2351 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
2352 && fixp->fx_r_type != BFD_RELOC_16_BASEREL
2353 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
2354 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
2355 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
2356 && (seg->flags & SEC_LOAD) != 0
2357 && strcmp (segment_name (seg), ".got2") != 0
2358 && strcmp (segment_name (seg), ".dtors") != 0
2359 && strcmp (segment_name (seg), ".ctors") != 0
2360 && strcmp (segment_name (seg), ".fixup") != 0
2361 && strcmp (segment_name (seg), ".gcc_except_table") != 0
2362 && strcmp (segment_name (seg), ".eh_frame") != 0
2363 && strcmp (segment_name (seg), ".ex_shared") != 0)
2365 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
2366 || fixp->fx_r_type != BFD_RELOC_CTOR)
2368 as_bad_where (fixp->fx_file, fixp->fx_line,
2369 _("relocation cannot be done when using -mrelocatable"));
2376 /* Prevent elf_frob_file_before_adjust removing a weak undefined
2377 function descriptor sym if the corresponding code sym is used. */
2380 ppc_frob_file_before_adjust (void)
2388 for (symp = symbol_rootP; symp; symp = symbol_next (symp))
2395 name = S_GET_NAME (symp);
2399 if (! S_IS_WEAK (symp)
2400 || S_IS_DEFINED (symp))
2403 len = strlen (name) + 1;
2404 dotname = xmalloc (len + 1);
2406 memcpy (dotname + 1, name, len);
2407 dotsym = symbol_find_noref (dotname, 1);
2409 if (dotsym != NULL && (symbol_used_p (dotsym)
2410 || symbol_used_in_reloc_p (dotsym)))
2411 symbol_mark_used (symp);
2415 toc = bfd_get_section_by_name (stdoutput, ".toc");
2417 && toc_reloc_types != has_large_toc_reloc
2418 && bfd_section_size (stdoutput, toc) > 0x10000)
2419 as_warn (_("TOC section size exceeds 64k"));
2422 /* .TOC. used in an opd entry as .TOC.@tocbase doesn't need to be
2423 emitted. Other uses of .TOC. will cause the symbol to be marked
2424 with BSF_KEEP in md_apply_fix. */
2427 ppc_elf_adjust_symtab (void)
2432 symp = symbol_find (".TOC.");
2435 asymbol *bsym = symbol_get_bfdsym (symp);
2436 if ((bsym->flags & BSF_KEEP) == 0)
2437 symbol_remove (symp, &symbol_rootP, &symbol_lastP);
2441 #endif /* OBJ_ELF */
2446 * Summary of parse_toc_entry.
2448 * in: Input_line_pointer points to the '[' in one of:
2450 * [toc] [tocv] [toc32] [toc64]
2452 * Anything else is an error of one kind or another.
2455 * return value: success or failure
2456 * toc_kind: kind of toc reference
2457 * input_line_pointer:
2458 * success: first char after the ']'
2459 * failure: unchanged
2463 * [toc] - rv == success, toc_kind = default_toc
2464 * [tocv] - rv == success, toc_kind = data_in_toc
2465 * [toc32] - rv == success, toc_kind = must_be_32
2466 * [toc64] - rv == success, toc_kind = must_be_64
2470 enum toc_size_qualifier
2472 default_toc, /* The toc cell constructed should be the system default size */
2473 data_in_toc, /* This is a direct reference to a toc cell */
2474 must_be_32, /* The toc cell constructed must be 32 bits wide */
2475 must_be_64 /* The toc cell constructed must be 64 bits wide */
2479 parse_toc_entry (enum toc_size_qualifier *toc_kind)
2484 enum toc_size_qualifier t;
2486 /* Save the input_line_pointer. */
2487 start = input_line_pointer;
2489 /* Skip over the '[' , and whitespace. */
2490 ++input_line_pointer;
2493 /* Find the spelling of the operand. */
2494 c = get_symbol_name (&toc_spec);
2496 if (strcmp (toc_spec, "toc") == 0)
2500 else if (strcmp (toc_spec, "tocv") == 0)
2504 else if (strcmp (toc_spec, "toc32") == 0)
2508 else if (strcmp (toc_spec, "toc64") == 0)
2514 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
2515 *input_line_pointer = c;
2516 input_line_pointer = start;
2520 /* Now find the ']'. */
2521 *input_line_pointer = c;
2523 SKIP_WHITESPACE_AFTER_NAME (); /* leading whitespace could be there. */
2524 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
2528 as_bad (_("syntax error: expected `]', found `%c'"), c);
2529 input_line_pointer = start;
2538 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
2539 /* See whether a symbol is in the TOC section. */
2542 ppc_is_toc_sym (symbolS *sym)
2545 return (symbol_get_tc (sym)->symbol_class == XMC_TC
2546 || symbol_get_tc (sym)->symbol_class == XMC_TC0);
2549 const char *sname = segment_name (S_GET_SEGMENT (sym));
2551 return strcmp (sname, ".toc") == 0;
2553 return strcmp (sname, ".got") == 0;
2556 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
2560 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2562 ppc_apuinfo_section_add (unsigned int apu, unsigned int version)
2566 /* Check we don't already exist. */
2567 for (i = 0; i < ppc_apuinfo_num; i++)
2568 if (ppc_apuinfo_list[i] == APUID (apu, version))
2571 if (ppc_apuinfo_num == ppc_apuinfo_num_alloc)
2573 if (ppc_apuinfo_num_alloc == 0)
2575 ppc_apuinfo_num_alloc = 4;
2576 ppc_apuinfo_list = (unsigned long *)
2577 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2581 ppc_apuinfo_num_alloc += 4;
2582 ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list,
2583 sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2586 ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version);
2592 /* We need to keep a list of fixups. We can't simply generate them as
2593 we go, because that would require us to first create the frag, and
2594 that would screw up references to ``.''. */
2600 bfd_reloc_code_real_type reloc;
2603 #define MAX_INSN_FIXUPS (5)
2606 #define E_OR2I_INSN 0x7000C000
2607 #define E_AND2I_DOT_INSN 0x7000C800
2608 #define E_OR2IS_INSN 0x7000D000
2609 #define E_LIS_INSN 0x7000E000
2610 #define E_AND2IS_DOT_INSN 0x7000E800
2613 #define E_ADD2I_DOT_INSN 0x70008800
2614 #define E_ADD2IS_INSN 0x70009000
2615 #define E_CMP16I_INSN 0x70009800
2616 #define E_MULL2I_INSN 0x7000A000
2617 #define E_CMPL16I_INSN 0x7000A800
2618 #define E_CMPH16I_INSN 0x7000B000
2619 #define E_CMPHL16I_INSN 0x7000B800
2621 /* This routine is called for each instruction to be assembled. */
2624 md_assemble (char *str)
2627 const struct powerpc_opcode *opcode;
2629 const unsigned char *opindex_ptr;
2633 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
2638 unsigned int insn_length;
2640 /* Get the opcode. */
2641 for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
2646 /* Look up the opcode in the hash table. */
2647 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
2648 if (opcode == (const struct powerpc_opcode *) NULL)
2650 const struct powerpc_macro *macro;
2652 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
2653 if (macro == (const struct powerpc_macro *) NULL)
2654 as_bad (_("unrecognized opcode: `%s'"), str);
2656 ppc_macro (s, macro);
2661 insn = opcode->opcode;
2664 while (ISSPACE (*str))
2667 /* PowerPC operands are just expressions. The only real issue is
2668 that a few operand types are optional. All cases which might use
2669 an optional operand separate the operands only with commas (in some
2670 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2671 have optional operands). Most instructions with optional operands
2672 have only one. Those that have more than one optional operand can
2673 take either all their operands or none. So, before we start seriously
2674 parsing the operands, we check to see if we have optional operands,
2675 and if we do, we count the number of commas to see which operands
2676 have been omitted. */
2678 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2680 const struct powerpc_operand *operand;
2682 operand = &powerpc_operands[*opindex_ptr];
2683 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
2685 unsigned int opcount;
2686 unsigned int num_operands_expected;
2688 /* There is an optional operand. Count the number of
2689 commas in the input line. */
2696 while ((s = strchr (s, ',')) != (char *) NULL)
2703 /* Compute the number of expected operands.
2704 Do not count fake operands. */
2705 for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++)
2706 if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0)
2707 ++ num_operands_expected;
2709 /* If there are fewer operands in the line then are called
2710 for by the instruction, we want to skip the optional
2712 if (opcount < num_operands_expected)
2719 /* Gather the operands. */
2723 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2725 const struct powerpc_operand *operand;
2731 if (next_opindex == 0)
2732 operand = &powerpc_operands[*opindex_ptr];
2735 operand = &powerpc_operands[next_opindex];
2740 /* If this is a fake operand, then we do not expect anything
2742 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
2744 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2745 if (errmsg != (const char *) NULL)
2746 as_bad ("%s", errmsg);
2750 /* If this is an optional operand, and we are skipping it, just
2752 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
2755 long val = ppc_optional_operand_value (operand);
2756 if (operand->insert)
2758 insn = (*operand->insert) (insn, val, ppc_cpu, &errmsg);
2759 if (errmsg != (const char *) NULL)
2760 as_bad ("%s", errmsg);
2762 else if (operand->shift >= 0)
2763 insn |= ((long) val & operand->bitm) << operand->shift;
2765 insn |= ((long) val & operand->bitm) >> -operand->shift;
2767 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
2768 next_opindex = *opindex_ptr + 1;
2772 /* Gather the operand. */
2773 hold = input_line_pointer;
2774 input_line_pointer = str;
2777 if (*input_line_pointer == '[')
2779 /* We are expecting something like the second argument here:
2781 * lwz r4,[toc].GS.0.static_int(rtoc)
2782 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2783 * The argument following the `]' must be a symbol name, and the
2784 * register must be the toc register: 'rtoc' or '2'
2786 * The effect is to 0 as the displacement field
2787 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2788 * the appropriate variation) reloc against it based on the symbol.
2789 * The linker will build the toc, and insert the resolved toc offset.
2792 * o The size of the toc entry is currently assumed to be
2793 * 32 bits. This should not be assumed to be a hard coded
2795 * o In an effort to cope with a change from 32 to 64 bits,
2796 * there are also toc entries that are specified to be
2797 * either 32 or 64 bits:
2798 * lwz r4,[toc32].GS.0.static_int(rtoc)
2799 * lwz r4,[toc64].GS.0.static_int(rtoc)
2800 * These demand toc entries of the specified size, and the
2801 * instruction probably requires it.
2805 enum toc_size_qualifier toc_kind;
2806 bfd_reloc_code_real_type toc_reloc;
2808 /* Go parse off the [tocXX] part. */
2809 valid_toc = parse_toc_entry (&toc_kind);
2813 ignore_rest_of_line ();
2817 /* Now get the symbol following the ']'. */
2823 /* In this case, we may not have seen the symbol yet,
2824 since it is allowed to appear on a .extern or .globl
2825 or just be a label in the .data section. */
2826 toc_reloc = BFD_RELOC_PPC_TOC16;
2829 /* 1. The symbol must be defined and either in the toc
2830 section, or a global.
2831 2. The reloc generated must have the TOCDEFN flag set
2832 in upper bit mess of the reloc type.
2833 FIXME: It's a little confusing what the tocv
2834 qualifier can be used for. At the very least, I've
2835 seen three uses, only one of which I'm sure I can
2837 if (ex.X_op == O_symbol)
2839 gas_assert (ex.X_add_symbol != NULL);
2840 if (symbol_get_bfdsym (ex.X_add_symbol)->section
2843 as_bad (_("[tocv] symbol is not a toc symbol"));
2847 toc_reloc = BFD_RELOC_PPC_TOC16;
2850 /* FIXME: these next two specifically specify 32/64 bit
2851 toc entries. We don't support them today. Is this
2852 the right way to say that? */
2853 toc_reloc = BFD_RELOC_NONE;
2854 as_bad (_("unimplemented toc32 expression modifier"));
2857 /* FIXME: see above. */
2858 toc_reloc = BFD_RELOC_NONE;
2859 as_bad (_("unimplemented toc64 expression modifier"));
2863 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2869 /* We need to generate a fixup for this expression. */
2870 if (fc >= MAX_INSN_FIXUPS)
2871 as_fatal (_("too many fixups"));
2873 fixups[fc].reloc = toc_reloc;
2874 fixups[fc].exp = ex;
2875 fixups[fc].opindex = *opindex_ptr;
2878 /* Ok. We've set up the fixup for the instruction. Now make it
2879 look like the constant 0 was found here. */
2881 ex.X_op = O_constant;
2882 ex.X_add_number = 0;
2883 ex.X_add_symbol = NULL;
2884 ex.X_op_symbol = NULL;
2891 && (((operand->flags & PPC_OPERAND_CR_BIT) != 0)
2892 || ((operand->flags & PPC_OPERAND_CR_REG) != 0)))
2893 || !register_name (&ex))
2895 char save_lex = lex_type['%'];
2897 if (((operand->flags & PPC_OPERAND_CR_REG) != 0)
2898 || (operand->flags & PPC_OPERAND_CR_BIT) != 0)
2901 lex_type['%'] |= LEX_BEGIN_NAME;
2905 lex_type['%'] = save_lex;
2909 str = input_line_pointer;
2910 input_line_pointer = hold;
2912 if (ex.X_op == O_illegal)
2913 as_bad (_("illegal operand"));
2914 else if (ex.X_op == O_absent)
2915 as_bad (_("missing operand"));
2916 else if (ex.X_op == O_register)
2918 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2919 ppc_cpu, (char *) NULL, 0);
2921 else if (ex.X_op == O_constant)
2924 /* Allow @HA, @L, @H on constants. */
2925 bfd_reloc_code_real_type reloc;
2926 char *orig_str = str;
2928 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_NONE)
2935 case BFD_RELOC_LO16:
2936 ex.X_add_number &= 0xffff;
2937 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
2938 ex.X_add_number = SEX16 (ex.X_add_number);
2941 case BFD_RELOC_HI16:
2942 if (REPORT_OVERFLOW_HI && ppc_obj64)
2944 /* PowerPC64 @h is tested for overflow. */
2945 ex.X_add_number = (addressT) ex.X_add_number >> 16;
2946 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
2948 addressT sign = (((addressT) -1 >> 16) + 1) >> 1;
2950 = ((addressT) ex.X_add_number ^ sign) - sign;
2956 case BFD_RELOC_PPC64_ADDR16_HIGH:
2957 ex.X_add_number = PPC_HI (ex.X_add_number);
2958 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
2959 ex.X_add_number = SEX16 (ex.X_add_number);
2962 case BFD_RELOC_HI16_S:
2963 if (REPORT_OVERFLOW_HI && ppc_obj64)
2965 /* PowerPC64 @ha is tested for overflow. */
2967 = ((addressT) ex.X_add_number + 0x8000) >> 16;
2968 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
2970 addressT sign = (((addressT) -1 >> 16) + 1) >> 1;
2972 = ((addressT) ex.X_add_number ^ sign) - sign;
2978 case BFD_RELOC_PPC64_ADDR16_HIGHA:
2979 ex.X_add_number = PPC_HA (ex.X_add_number);
2980 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
2981 ex.X_add_number = SEX16 (ex.X_add_number);
2984 case BFD_RELOC_PPC64_HIGHER:
2985 ex.X_add_number = PPC_HIGHER (ex.X_add_number);
2986 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
2987 ex.X_add_number = SEX16 (ex.X_add_number);
2990 case BFD_RELOC_PPC64_HIGHER_S:
2991 ex.X_add_number = PPC_HIGHERA (ex.X_add_number);
2992 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
2993 ex.X_add_number = SEX16 (ex.X_add_number);
2996 case BFD_RELOC_PPC64_HIGHEST:
2997 ex.X_add_number = PPC_HIGHEST (ex.X_add_number);
2998 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
2999 ex.X_add_number = SEX16 (ex.X_add_number);
3002 case BFD_RELOC_PPC64_HIGHEST_S:
3003 ex.X_add_number = PPC_HIGHESTA (ex.X_add_number);
3004 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
3005 ex.X_add_number = SEX16 (ex.X_add_number);
3008 #endif /* OBJ_ELF */
3009 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
3010 ppc_cpu, (char *) NULL, 0);
3014 bfd_reloc_code_real_type reloc = BFD_RELOC_NONE;
3016 if (ex.X_op == O_symbol && str[0] == '(')
3018 const char *sym_name = S_GET_NAME (ex.X_add_symbol);
3019 if (sym_name[0] == '.')
3022 if (strcasecmp (sym_name, "__tls_get_addr") == 0)
3024 expressionS tls_exp;
3026 hold = input_line_pointer;
3027 input_line_pointer = str + 1;
3028 expression (&tls_exp);
3029 if (tls_exp.X_op == O_symbol)
3031 reloc = BFD_RELOC_NONE;
3032 if (strncasecmp (input_line_pointer, "@tlsgd)", 7) == 0)
3034 reloc = BFD_RELOC_PPC_TLSGD;
3035 input_line_pointer += 7;
3037 else if (strncasecmp (input_line_pointer, "@tlsld)", 7) == 0)
3039 reloc = BFD_RELOC_PPC_TLSLD;
3040 input_line_pointer += 7;
3042 if (reloc != BFD_RELOC_NONE)
3045 str = input_line_pointer;
3047 if (fc >= MAX_INSN_FIXUPS)
3048 as_fatal (_("too many fixups"));
3049 fixups[fc].exp = tls_exp;
3050 fixups[fc].opindex = *opindex_ptr;
3051 fixups[fc].reloc = reloc;
3055 input_line_pointer = hold;
3059 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_NONE)
3061 /* Some TLS tweaks. */
3067 case BFD_RELOC_PPC_TLS:
3068 if (!_bfd_elf_ppc_at_tls_transform (opcode->opcode, 0))
3069 as_bad (_("@tls may not be used with \"%s\" operands"),
3071 else if (operand->shift != 11)
3072 as_bad (_("@tls may only be used in last operand"));
3074 insn = ppc_insert_operand (insn, operand,
3076 ppc_cpu, (char *) NULL, 0);
3079 /* We'll only use the 32 (or 64) bit form of these relocations
3080 in constants. Instructions get the 16 bit form. */
3081 case BFD_RELOC_PPC_DTPREL:
3082 reloc = BFD_RELOC_PPC_DTPREL16;
3084 case BFD_RELOC_PPC_TPREL:
3085 reloc = BFD_RELOC_PPC_TPREL16;
3090 if (opcode->opcode == (19 << 26) + (2 << 1)
3091 && reloc == BFD_RELOC_HI16_S)
3092 reloc = BFD_RELOC_PPC_REL16DX_HA;
3094 /* If VLE-mode convert LO/HI/HA relocations. */
3095 if (opcode->flags & PPC_OPCODE_VLE)
3097 int tmp_insn = insn & opcode->mask;
3099 int use_d_reloc = (tmp_insn == E_OR2I_INSN
3100 || tmp_insn == E_AND2I_DOT_INSN
3101 || tmp_insn == E_OR2IS_INSN
3102 || tmp_insn == E_LIS_INSN
3103 || tmp_insn == E_AND2IS_DOT_INSN);
3106 int use_a_reloc = (tmp_insn == E_ADD2I_DOT_INSN
3107 || tmp_insn == E_ADD2IS_INSN
3108 || tmp_insn == E_CMP16I_INSN
3109 || tmp_insn == E_MULL2I_INSN
3110 || tmp_insn == E_CMPL16I_INSN
3111 || tmp_insn == E_CMPH16I_INSN
3112 || tmp_insn == E_CMPHL16I_INSN);
3119 case BFD_RELOC_PPC_EMB_SDA21:
3120 reloc = BFD_RELOC_PPC_VLE_SDA21;
3123 case BFD_RELOC_LO16:
3125 reloc = BFD_RELOC_PPC_VLE_LO16D;
3126 else if (use_a_reloc)
3127 reloc = BFD_RELOC_PPC_VLE_LO16A;
3130 case BFD_RELOC_HI16:
3132 reloc = BFD_RELOC_PPC_VLE_HI16D;
3133 else if (use_a_reloc)
3134 reloc = BFD_RELOC_PPC_VLE_HI16A;
3137 case BFD_RELOC_HI16_S:
3139 reloc = BFD_RELOC_PPC_VLE_HA16D;
3140 else if (use_a_reloc)
3141 reloc = BFD_RELOC_PPC_VLE_HA16A;
3144 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
3146 reloc = BFD_RELOC_PPC_VLE_SDAREL_LO16D;
3149 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
3151 reloc = BFD_RELOC_PPC_VLE_SDAREL_HI16D;
3154 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
3156 reloc = BFD_RELOC_PPC_VLE_SDAREL_HA16D;
3161 #endif /* OBJ_ELF */
3163 if (reloc != BFD_RELOC_NONE)
3165 /* Determine a BFD reloc value based on the operand information.
3166 We are only prepared to turn a few of the operands into
3168 else if ((operand->flags & (PPC_OPERAND_RELATIVE
3169 | PPC_OPERAND_ABSOLUTE)) != 0
3170 && operand->bitm == 0x3fffffc
3171 && operand->shift == 0)
3172 reloc = BFD_RELOC_PPC_B26;
3173 else if ((operand->flags & (PPC_OPERAND_RELATIVE
3174 | PPC_OPERAND_ABSOLUTE)) != 0
3175 && operand->bitm == 0xfffc
3176 && operand->shift == 0)
3177 reloc = BFD_RELOC_PPC_B16;
3178 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
3179 && operand->bitm == 0x1fe
3180 && operand->shift == -1)
3181 reloc = BFD_RELOC_PPC_VLE_REL8;
3182 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
3183 && operand->bitm == 0xfffe
3184 && operand->shift == 0)
3185 reloc = BFD_RELOC_PPC_VLE_REL15;
3186 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
3187 && operand->bitm == 0x1fffffe
3188 && operand->shift == 0)
3189 reloc = BFD_RELOC_PPC_VLE_REL24;
3190 else if ((operand->flags & PPC_OPERAND_NEGATIVE) == 0
3191 && (operand->bitm & 0xfff0) == 0xfff0
3192 && operand->shift == 0)
3194 reloc = BFD_RELOC_16;
3195 #if defined OBJ_XCOFF || defined OBJ_ELF
3196 /* Note: the symbol may be not yet defined. */
3197 if ((operand->flags & PPC_OPERAND_PARENS) != 0
3198 && ppc_is_toc_sym (ex.X_add_symbol))
3200 reloc = BFD_RELOC_PPC_TOC16;
3202 as_warn (_("assuming %s on symbol"),
3203 ppc_obj64 ? "@toc" : "@xgot");
3209 /* For the absolute forms of branches, convert the PC
3210 relative form back into the absolute. */
3211 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
3215 case BFD_RELOC_PPC_B26:
3216 reloc = BFD_RELOC_PPC_BA26;
3218 case BFD_RELOC_PPC_B16:
3219 reloc = BFD_RELOC_PPC_BA16;
3222 case BFD_RELOC_PPC_B16_BRTAKEN:
3223 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
3225 case BFD_RELOC_PPC_B16_BRNTAKEN:
3226 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
3237 case BFD_RELOC_PPC_TOC16:
3238 toc_reloc_types |= has_small_toc_reloc;
3240 case BFD_RELOC_PPC64_TOC16_LO:
3241 case BFD_RELOC_PPC64_TOC16_HI:
3242 case BFD_RELOC_PPC64_TOC16_HA:
3243 toc_reloc_types |= has_large_toc_reloc;
3250 && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0)
3255 reloc = BFD_RELOC_PPC64_ADDR16_DS;
3257 case BFD_RELOC_LO16:
3258 reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
3260 case BFD_RELOC_16_GOTOFF:
3261 reloc = BFD_RELOC_PPC64_GOT16_DS;
3263 case BFD_RELOC_LO16_GOTOFF:
3264 reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
3266 case BFD_RELOC_LO16_PLTOFF:
3267 reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
3269 case BFD_RELOC_16_BASEREL:
3270 reloc = BFD_RELOC_PPC64_SECTOFF_DS;
3272 case BFD_RELOC_LO16_BASEREL:
3273 reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
3275 case BFD_RELOC_PPC_TOC16:
3276 reloc = BFD_RELOC_PPC64_TOC16_DS;
3278 case BFD_RELOC_PPC64_TOC16_LO:
3279 reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
3281 case BFD_RELOC_PPC64_PLTGOT16:
3282 reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
3284 case BFD_RELOC_PPC64_PLTGOT16_LO:
3285 reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
3287 case BFD_RELOC_PPC_DTPREL16:
3288 reloc = BFD_RELOC_PPC64_DTPREL16_DS;
3290 case BFD_RELOC_PPC_DTPREL16_LO:
3291 reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS;
3293 case BFD_RELOC_PPC_TPREL16:
3294 reloc = BFD_RELOC_PPC64_TPREL16_DS;
3296 case BFD_RELOC_PPC_TPREL16_LO:
3297 reloc = BFD_RELOC_PPC64_TPREL16_LO_DS;
3299 case BFD_RELOC_PPC_GOT_DTPREL16:
3300 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
3301 case BFD_RELOC_PPC_GOT_TPREL16:
3302 case BFD_RELOC_PPC_GOT_TPREL16_LO:
3305 as_bad (_("unsupported relocation for DS offset field"));
3311 /* We need to generate a fixup for this expression. */
3312 if (fc >= MAX_INSN_FIXUPS)
3313 as_fatal (_("too many fixups"));
3314 fixups[fc].exp = ex;
3315 fixups[fc].opindex = *opindex_ptr;
3316 fixups[fc].reloc = reloc;
3324 /* If expecting more operands, then we want to see "),". */
3325 if (*str == endc && opindex_ptr[1] != 0)
3329 while (ISSPACE (*str));
3333 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
3341 /* The call to expression should have advanced str past any
3344 && (endc != ',' || *str != '\0'))
3347 as_bad (_("syntax error; end of line, expected `%c'"), endc);
3349 as_bad (_("syntax error; found `%c', expected `%c'"), *str, endc);
3357 while (ISSPACE (*str))
3361 as_bad (_("junk at end of line: `%s'"), str);
3364 /* Do we need/want an APUinfo section? */
3365 if ((ppc_cpu & (PPC_OPCODE_E500 | PPC_OPCODE_E500MC | PPC_OPCODE_VLE)) != 0
3368 /* These are all version "1". */
3369 if (opcode->flags & PPC_OPCODE_SPE)
3370 ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1);
3371 if (opcode->flags & PPC_OPCODE_ISEL)
3372 ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1);
3373 if (opcode->flags & PPC_OPCODE_EFS)
3374 ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1);
3375 if (opcode->flags & PPC_OPCODE_BRLOCK)
3376 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1);
3377 if (opcode->flags & PPC_OPCODE_PMR)
3378 ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1);
3379 if (opcode->flags & PPC_OPCODE_CACHELCK)
3380 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1);
3381 if (opcode->flags & PPC_OPCODE_RFMCI)
3382 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1);
3383 /* Only set the VLE flag if the instruction has been pulled via
3384 the VLE instruction set. This way the flag is guaranteed to
3385 be set for VLE-only instructions or for VLE-only processors,
3386 however it'll remain clear for dual-mode instructions on
3387 dual-mode and, more importantly, standard-mode processors. */
3388 if ((ppc_cpu & opcode->flags) == PPC_OPCODE_VLE)
3389 ppc_apuinfo_section_add (PPC_APUINFO_VLE, 1);
3393 /* Write out the instruction. */
3394 /* Differentiate between two and four byte insns. */
3395 if (ppc_mach () == bfd_mach_ppc_vle)
3397 if (PPC_OP_SE_VLE (insn))
3401 addr_mod = frag_now_fix () & 1;
3406 addr_mod = frag_now_fix () & 3;
3408 /* All instructions can start on a 2 byte boundary for VLE. */
3409 f = frag_more (insn_length);
3410 if (frag_now->has_code && frag_now->insn_addr != addr_mod)
3412 if (ppc_mach() == bfd_mach_ppc_vle)
3413 as_bad (_("instruction address is not a multiple of 2"));
3415 as_bad (_("instruction address is not a multiple of 4"));
3417 frag_now->insn_addr = addr_mod;
3418 frag_now->has_code = 1;
3419 md_number_to_chars (f, insn, insn_length);
3422 last_subseg = now_subseg;
3425 dwarf2_emit_insn (insn_length);
3428 /* Create any fixups. */
3429 for (i = 0; i < fc; i++)
3432 if (fixups[i].reloc != BFD_RELOC_NONE)
3434 reloc_howto_type *reloc_howto;
3438 reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
3442 size = bfd_get_reloc_size (reloc_howto);
3443 offset = target_big_endian ? (insn_length - size) : 0;
3445 fixP = fix_new_exp (frag_now,
3446 f - frag_now->fr_literal + offset,
3449 reloc_howto->pc_relative,
3454 const struct powerpc_operand *operand;
3456 operand = &powerpc_operands[fixups[i].opindex];
3457 fixP = fix_new_exp (frag_now,
3458 f - frag_now->fr_literal,
3461 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
3464 fixP->fx_pcrel_adjust = fixups[i].opindex;
3468 /* Handle a macro. Gather all the operands, transform them as
3469 described by the macro, and call md_assemble recursively. All the
3470 operands are separated by commas; we don't accept parentheses
3471 around operands here. */
3474 ppc_macro (char *str, const struct powerpc_macro *macro)
3485 /* Gather the users operands into the operands array. */
3490 if (count >= sizeof operands / sizeof operands[0])
3492 operands[count++] = s;
3493 s = strchr (s, ',');
3494 if (s == (char *) NULL)
3499 if (count != macro->operands)
3501 as_bad (_("wrong number of operands"));
3505 /* Work out how large the string must be (the size is unbounded
3506 because it includes user input). */
3508 format = macro->format;
3509 while (*format != '\0')
3518 arg = strtol (format + 1, &send, 10);
3519 know (send != format && arg < count);
3520 len += strlen (operands[arg]);
3525 /* Put the string together. */
3526 complete = s = (char *) alloca (len + 1);
3527 format = macro->format;
3528 while (*format != '\0')
3534 arg = strtol (format + 1, &send, 10);
3535 strcpy (s, operands[arg]);
3542 /* Assemble the constructed instruction. */
3543 md_assemble (complete);
3547 /* For ELF, add support for SHT_ORDERED. */
3550 ppc_section_type (char *str, size_t len)
3552 if (len == 7 && strncmp (str, "ordered", 7) == 0)
3559 ppc_section_flags (flagword flags, bfd_vma attr ATTRIBUTE_UNUSED, int type)
3561 if (type == SHT_ORDERED)
3562 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
3566 #endif /* OBJ_ELF */
3569 /* Pseudo-op handling. */
3571 /* The .byte pseudo-op. This is similar to the normal .byte
3572 pseudo-op, but it can also take a single ASCII string. */
3575 ppc_byte (int ignore ATTRIBUTE_UNUSED)
3579 if (*input_line_pointer != '\"')
3585 /* Gather characters. A real double quote is doubled. Unusual
3586 characters are not permitted. */
3587 ++input_line_pointer;
3592 c = *input_line_pointer++;
3596 if (*input_line_pointer != '\"')
3598 ++input_line_pointer;
3601 FRAG_APPEND_1_CHAR (c);
3605 if (warn_476 && count != 0 && (now_seg->flags & SEC_CODE) != 0)
3606 as_warn (_("data in executable section"));
3607 demand_empty_rest_of_line ();
3612 /* XCOFF specific pseudo-op handling. */
3614 /* This is set if we are creating a .stabx symbol, since we don't want
3615 to handle symbol suffixes for such symbols. */
3616 static bfd_boolean ppc_stab_symbol;
3618 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
3619 symbols in the .bss segment as though they were local common
3620 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
3621 aligns .comm and .lcomm to 4 bytes. */
3624 ppc_comm (int lcomm)
3626 asection *current_seg = now_seg;
3627 subsegT current_subseg = now_subseg;
3633 symbolS *lcomm_sym = NULL;
3637 endc = get_symbol_name (&name);
3638 end_name = input_line_pointer;
3639 (void) restore_line_pointer (endc);
3641 if (*input_line_pointer != ',')
3643 as_bad (_("missing size"));
3644 ignore_rest_of_line ();
3647 ++input_line_pointer;
3649 size = get_absolute_expression ();
3652 as_bad (_("negative size"));
3653 ignore_rest_of_line ();
3659 /* The third argument to .comm is the alignment. */
3660 if (*input_line_pointer != ',')
3664 ++input_line_pointer;
3665 align = get_absolute_expression ();
3668 as_warn (_("ignoring bad alignment"));
3678 /* The third argument to .lcomm appears to be the real local
3679 common symbol to create. References to the symbol named in
3680 the first argument are turned into references to the third
3682 if (*input_line_pointer != ',')
3684 as_bad (_("missing real symbol name"));
3685 ignore_rest_of_line ();
3688 ++input_line_pointer;
3690 lcomm_endc = get_symbol_name (&lcomm_name);
3692 lcomm_sym = symbol_find_or_make (lcomm_name);
3694 (void) restore_line_pointer (lcomm_endc);
3696 /* The fourth argument to .lcomm is the alignment. */
3697 if (*input_line_pointer != ',')
3706 ++input_line_pointer;
3707 align = get_absolute_expression ();
3710 as_warn (_("ignoring bad alignment"));
3717 sym = symbol_find_or_make (name);
3720 if (S_IS_DEFINED (sym)
3721 || S_GET_VALUE (sym) != 0)
3723 as_bad (_("attempt to redefine symbol"));
3724 ignore_rest_of_line ();
3728 record_alignment (bss_section, align);
3731 || ! S_IS_DEFINED (lcomm_sym))
3740 S_SET_EXTERNAL (sym);
3744 symbol_get_tc (lcomm_sym)->output = 1;
3745 def_sym = lcomm_sym;
3749 subseg_set (bss_section, 1);
3750 frag_align (align, 0, 0);
3752 symbol_set_frag (def_sym, frag_now);
3753 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
3754 def_size, (char *) NULL);
3756 S_SET_SEGMENT (def_sym, bss_section);
3757 symbol_get_tc (def_sym)->align = align;
3761 /* Align the size of lcomm_sym. */
3762 symbol_get_frag (lcomm_sym)->fr_offset =
3763 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
3764 &~ ((1 << align) - 1));
3765 if (align > symbol_get_tc (lcomm_sym)->align)
3766 symbol_get_tc (lcomm_sym)->align = align;
3771 /* Make sym an offset from lcomm_sym. */
3772 S_SET_SEGMENT (sym, bss_section);
3773 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
3774 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
3775 symbol_get_frag (lcomm_sym)->fr_offset += size;
3778 subseg_set (current_seg, current_subseg);
3780 demand_empty_rest_of_line ();
3783 /* The .csect pseudo-op. This switches us into a different
3784 subsegment. The first argument is a symbol whose value is the
3785 start of the .csect. In COFF, csect symbols get special aux
3786 entries defined by the x_csect field of union internal_auxent. The
3787 optional second argument is the alignment (the default is 2). */
3790 ppc_csect (int ignore ATTRIBUTE_UNUSED)
3797 endc = get_symbol_name (&name);
3799 sym = symbol_find_or_make (name);
3801 (void) restore_line_pointer (endc);
3803 if (S_GET_NAME (sym)[0] == '\0')
3805 /* An unnamed csect is assumed to be [PR]. */
3806 symbol_get_tc (sym)->symbol_class = XMC_PR;
3810 if (*input_line_pointer == ',')
3812 ++input_line_pointer;
3813 align = get_absolute_expression ();
3816 ppc_change_csect (sym, align);
3818 demand_empty_rest_of_line ();
3821 /* Change to a different csect. */
3824 ppc_change_csect (symbolS *sym, offsetT align)
3826 if (S_IS_DEFINED (sym))
3827 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
3837 /* This is a new csect. We need to look at the symbol class to
3838 figure out whether it should go in the text section or the
3842 switch (symbol_get_tc (sym)->symbol_class)
3852 S_SET_SEGMENT (sym, text_section);
3853 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
3854 ++ppc_text_subsegment;
3855 list_ptr = &ppc_text_csects;
3865 if (ppc_toc_csect != NULL
3866 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
3867 == ppc_data_subsegment))
3869 S_SET_SEGMENT (sym, data_section);
3870 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
3871 ++ppc_data_subsegment;
3872 list_ptr = &ppc_data_csects;
3878 /* We set the obstack chunk size to a small value before
3879 changing subsegments, so that we don't use a lot of memory
3880 space for what may be a small section. */
3881 hold_chunksize = chunksize;
3884 sec = subseg_new (segment_name (S_GET_SEGMENT (sym)),
3885 symbol_get_tc (sym)->subseg);
3887 chunksize = hold_chunksize;
3890 ppc_after_toc_frag = frag_now;
3892 record_alignment (sec, align);
3894 frag_align_code (align, 0);
3896 frag_align (align, 0, 0);
3898 symbol_set_frag (sym, frag_now);
3899 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3901 symbol_get_tc (sym)->align = align;
3902 symbol_get_tc (sym)->output = 1;
3903 symbol_get_tc (sym)->within = sym;
3905 for (list = *list_ptr;
3906 symbol_get_tc (list)->next != (symbolS *) NULL;
3907 list = symbol_get_tc (list)->next)
3909 symbol_get_tc (list)->next = sym;
3911 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3912 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3916 ppc_current_csect = sym;
3920 ppc_change_debug_section (unsigned int idx, subsegT subseg)
3924 const struct xcoff_dwsect_name *dw = &xcoff_dwsect_names[idx];
3926 sec = subseg_new (dw->name, subseg);
3927 oldflags = bfd_get_section_flags (stdoutput, sec);
3928 if (oldflags == SEC_NO_FLAGS)
3930 /* Just created section. */
3931 gas_assert (dw_sections[idx].sect == NULL);
3933 bfd_set_section_flags (stdoutput, sec, SEC_DEBUGGING);
3934 bfd_set_section_alignment (stdoutput, sec, 0);
3935 dw_sections[idx].sect = sec;
3938 /* Not anymore in a csect. */
3939 ppc_current_csect = NULL;
3942 /* The .dwsect pseudo-op. Defines a DWARF section. Syntax is:
3943 .dwsect flag [, opt-label ]
3947 ppc_dwsect (int ignore ATTRIBUTE_UNUSED)
3951 const struct xcoff_dwsect_name *dw;
3952 struct dw_subsection *subseg;
3953 struct dw_section *dws;
3957 flag = get_absolute_expression ();
3959 for (i = 0; i < XCOFF_DWSECT_NBR_NAMES; i++)
3960 if (xcoff_dwsect_names[i].flag == flag)
3962 dw = &xcoff_dwsect_names[i];
3966 /* Parse opt-label. */
3967 if (*input_line_pointer == ',')
3972 ++input_line_pointer;
3974 c = get_symbol_name (&label);
3975 opt_label = symbol_find_or_make (label);
3976 (void) restore_line_pointer (c);
3981 demand_empty_rest_of_line ();
3983 /* Return now in case of unknown subsection. */
3986 as_bad (_("no known dwarf XCOFF section for flag 0x%08x\n"),
3991 /* Find the subsection. */
3992 dws = &dw_sections[i];
3994 if (opt_label != NULL && S_IS_DEFINED (opt_label))
3996 /* Sanity check (note that in theory S_GET_SEGMENT mustn't be null). */
3997 if (dws->sect == NULL || S_GET_SEGMENT (opt_label) != dws->sect)
3999 as_bad (_("label %s was not defined in this dwarf section"),
4000 S_GET_NAME (opt_label));
4001 subseg = dws->anon_subseg;
4005 subseg = symbol_get_tc (opt_label)->u.dw;
4010 /* Switch to the subsection. */
4011 ppc_change_debug_section (i, subseg->subseg);
4015 /* Create a new dw subsection. */
4016 subseg = (struct dw_subsection *)
4017 xmalloc (sizeof (struct dw_subsection));
4019 if (opt_label == NULL)
4021 /* The anonymous one. */
4023 subseg->link = NULL;
4024 dws->anon_subseg = subseg;
4029 if (dws->list_subseg != NULL)
4030 subseg->subseg = dws->list_subseg->subseg + 1;
4034 subseg->link = dws->list_subseg;
4035 dws->list_subseg = subseg;
4036 symbol_get_tc (opt_label)->u.dw = subseg;
4039 ppc_change_debug_section (i, subseg->subseg);
4043 /* Add the length field. */
4044 expressionS *exp = &subseg->end_exp;
4047 if (opt_label != NULL)
4048 symbol_set_value_now (opt_label);
4050 /* Add the length field. Note that according to the AIX assembler
4051 manual, the size of the length field is 4 for powerpc32 but
4052 12 for powerpc64. */
4055 /* Write the 64bit marker. */
4056 md_number_to_chars (frag_more (4), -1, 4);
4059 exp->X_op = O_subtract;
4060 exp->X_op_symbol = symbol_temp_new_now ();
4061 exp->X_add_symbol = symbol_temp_make ();
4063 sz = ppc_obj64 ? 8 : 4;
4064 exp->X_add_number = -sz;
4065 emit_expr (exp, sz);
4070 /* This function handles the .text and .data pseudo-ops. These
4071 pseudo-ops aren't really used by XCOFF; we implement them for the
4072 convenience of people who aren't used to XCOFF. */
4075 ppc_section (int type)
4082 else if (type == 'd')
4087 sym = symbol_find_or_make (name);
4089 ppc_change_csect (sym, 2);
4091 demand_empty_rest_of_line ();
4094 /* This function handles the .section pseudo-op. This is mostly to
4095 give an error, since XCOFF only supports .text, .data and .bss, but
4096 we do permit the user to name the text or data section. */
4099 ppc_named_section (int ignore ATTRIBUTE_UNUSED)
4102 const char *real_name;
4106 c = get_symbol_name (&user_name);
4108 if (strcmp (user_name, ".text") == 0)
4109 real_name = ".text[PR]";
4110 else if (strcmp (user_name, ".data") == 0)
4111 real_name = ".data[RW]";
4114 as_bad (_("the XCOFF file format does not support arbitrary sections"));
4115 (void) restore_line_pointer (c);
4116 ignore_rest_of_line ();
4120 (void) restore_line_pointer (c);
4122 sym = symbol_find_or_make (real_name);
4124 ppc_change_csect (sym, 2);
4126 demand_empty_rest_of_line ();
4129 /* The .extern pseudo-op. We create an undefined symbol. */
4132 ppc_extern (int ignore ATTRIBUTE_UNUSED)
4137 endc = get_symbol_name (&name);
4139 (void) symbol_find_or_make (name);
4141 (void) restore_line_pointer (endc);
4143 demand_empty_rest_of_line ();
4146 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
4149 ppc_lglobl (int ignore ATTRIBUTE_UNUSED)
4155 endc = get_symbol_name (&name);
4157 sym = symbol_find_or_make (name);
4159 (void) restore_line_pointer (endc);
4161 symbol_get_tc (sym)->output = 1;
4163 demand_empty_rest_of_line ();
4166 /* The .ref pseudo-op. It takes a list of symbol names and inserts R_REF
4167 relocations at the beginning of the current csect.
4169 (In principle, there's no reason why the relocations _have_ to be at
4170 the beginning. Anywhere in the csect would do. However, inserting
4171 at the beginning is what the native assmebler does, and it helps to
4172 deal with cases where the .ref statements follow the section contents.)
4174 ??? .refs don't work for empty .csects. However, the native assembler
4175 doesn't report an error in this case, and neither yet do we. */
4178 ppc_ref (int ignore ATTRIBUTE_UNUSED)
4183 if (ppc_current_csect == NULL)
4185 as_bad (_(".ref outside .csect"));
4186 ignore_rest_of_line ();
4192 c = get_symbol_name (&name);
4194 fix_at_start (symbol_get_frag (ppc_current_csect), 0,
4195 symbol_find_or_make (name), 0, FALSE, BFD_RELOC_NONE);
4197 *input_line_pointer = c;
4198 SKIP_WHITESPACE_AFTER_NAME ();
4199 c = *input_line_pointer;
4202 input_line_pointer++;
4204 if (is_end_of_line[(unsigned char) *input_line_pointer])
4206 as_bad (_("missing symbol name"));
4207 ignore_rest_of_line ();
4214 demand_empty_rest_of_line ();
4217 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
4218 although I don't know why it bothers. */
4221 ppc_rename (int ignore ATTRIBUTE_UNUSED)
4228 endc = get_symbol_name (&name);
4230 sym = symbol_find_or_make (name);
4232 (void) restore_line_pointer (endc);
4234 if (*input_line_pointer != ',')
4236 as_bad (_("missing rename string"));
4237 ignore_rest_of_line ();
4240 ++input_line_pointer;
4242 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
4244 demand_empty_rest_of_line ();
4247 /* The .stabx pseudo-op. This is similar to a normal .stabs
4248 pseudo-op, but slightly different. A sample is
4249 .stabx "main:F-1",.main,142,0
4250 The first argument is the symbol name to create. The second is the
4251 value, and the third is the storage class. The fourth seems to be
4252 always zero, and I am assuming it is the type. */
4255 ppc_stabx (int ignore ATTRIBUTE_UNUSED)
4262 name = demand_copy_C_string (&len);
4264 if (*input_line_pointer != ',')
4266 as_bad (_("missing value"));
4269 ++input_line_pointer;
4271 ppc_stab_symbol = TRUE;
4272 sym = symbol_make (name);
4273 ppc_stab_symbol = FALSE;
4275 symbol_get_tc (sym)->real_name = name;
4277 (void) expression (&exp);
4284 as_bad (_("illegal .stabx expression; zero assumed"));
4285 exp.X_add_number = 0;
4288 S_SET_VALUE (sym, (valueT) exp.X_add_number);
4289 symbol_set_frag (sym, &zero_address_frag);
4293 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
4294 symbol_set_value_expression (sym, &exp);
4298 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
4299 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
4304 /* The value is some complex expression. This will probably
4305 fail at some later point, but this is probably the right
4306 thing to do here. */
4307 symbol_set_value_expression (sym, &exp);
4311 S_SET_SEGMENT (sym, ppc_coff_debug_section);
4312 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4314 if (*input_line_pointer != ',')
4316 as_bad (_("missing class"));
4319 ++input_line_pointer;
4321 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
4323 if (*input_line_pointer != ',')
4325 as_bad (_("missing type"));
4328 ++input_line_pointer;
4330 S_SET_DATA_TYPE (sym, get_absolute_expression ());
4332 symbol_get_tc (sym)->output = 1;
4334 if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
4339 .stabx "z",arrays_,133,0
4342 .comm arrays_,13768,3
4344 resolve_symbol_value will copy the exp's "within" into sym's when the
4345 offset is 0. Since this seems to be corner case problem,
4346 only do the correction for storage class C_STSYM. A better solution
4347 would be to have the tc field updated in ppc_symbol_new_hook. */
4349 if (exp.X_op == O_symbol)
4351 if (ppc_current_block == NULL)
4352 as_bad (_(".stabx of storage class stsym must be within .bs/.es"));
4354 symbol_get_tc (sym)->within = ppc_current_block;
4355 symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block;
4359 if (exp.X_op != O_symbol
4360 || ! S_IS_EXTERNAL (exp.X_add_symbol)
4361 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
4362 ppc_frob_label (sym);
4365 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4366 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
4367 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
4368 symbol_get_tc (ppc_current_csect)->within = sym;
4371 demand_empty_rest_of_line ();
4374 /* The .function pseudo-op. This takes several arguments. The first
4375 argument seems to be the external name of the symbol. The second
4376 argument seems to be the label for the start of the function. gcc
4377 uses the same name for both. I have no idea what the third and
4378 fourth arguments are meant to be. The optional fifth argument is
4379 an expression for the size of the function. In COFF this symbol
4380 gets an aux entry like that used for a csect. */
4383 ppc_function (int ignore ATTRIBUTE_UNUSED)
4391 endc = get_symbol_name (&name);
4393 /* Ignore any [PR] suffix. */
4394 name = ppc_canonicalize_symbol_name (name);
4395 s = strchr (name, '[');
4396 if (s != (char *) NULL
4397 && strcmp (s + 1, "PR]") == 0)
4400 ext_sym = symbol_find_or_make (name);
4402 (void) restore_line_pointer (endc);
4404 if (*input_line_pointer != ',')
4406 as_bad (_("missing symbol name"));
4407 ignore_rest_of_line ();
4410 ++input_line_pointer;
4412 endc = get_symbol_name (&name);
4414 lab_sym = symbol_find_or_make (name);
4416 (void) restore_line_pointer (endc);
4418 if (ext_sym != lab_sym)
4422 exp.X_op = O_symbol;
4423 exp.X_add_symbol = lab_sym;
4424 exp.X_op_symbol = NULL;
4425 exp.X_add_number = 0;
4427 symbol_set_value_expression (ext_sym, &exp);
4430 if (symbol_get_tc (ext_sym)->symbol_class == -1)
4431 symbol_get_tc (ext_sym)->symbol_class = XMC_PR;
4432 symbol_get_tc (ext_sym)->output = 1;
4434 if (*input_line_pointer == ',')
4438 /* Ignore the third argument. */
4439 ++input_line_pointer;
4441 if (*input_line_pointer == ',')
4443 /* Ignore the fourth argument. */
4444 ++input_line_pointer;
4446 if (*input_line_pointer == ',')
4448 /* The fifth argument is the function size. */
4449 ++input_line_pointer;
4450 symbol_get_tc (ext_sym)->u.size = symbol_new
4451 ("L0\001", absolute_section,(valueT) 0, &zero_address_frag);
4452 pseudo_set (symbol_get_tc (ext_sym)->u.size);
4457 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
4458 SF_SET_FUNCTION (ext_sym);
4459 SF_SET_PROCESS (ext_sym);
4460 coff_add_linesym (ext_sym);
4462 demand_empty_rest_of_line ();
4465 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
4466 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
4467 with the correct line number */
4469 static symbolS *saved_bi_sym = 0;
4472 ppc_bf (int ignore ATTRIBUTE_UNUSED)
4476 sym = symbol_make (".bf");
4477 S_SET_SEGMENT (sym, text_section);
4478 symbol_set_frag (sym, frag_now);
4479 S_SET_VALUE (sym, frag_now_fix ());
4480 S_SET_STORAGE_CLASS (sym, C_FCN);
4482 coff_line_base = get_absolute_expression ();
4484 S_SET_NUMBER_AUXILIARY (sym, 1);
4485 SA_SET_SYM_LNNO (sym, coff_line_base);
4487 /* Line number for bi. */
4490 S_SET_VALUE (saved_bi_sym, coff_n_line_nos);
4495 symbol_get_tc (sym)->output = 1;
4497 ppc_frob_label (sym);
4499 demand_empty_rest_of_line ();
4502 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
4503 ".ef", except that the line number is absolute, not relative to the
4504 most recent ".bf" symbol. */
4507 ppc_ef (int ignore ATTRIBUTE_UNUSED)
4511 sym = symbol_make (".ef");
4512 S_SET_SEGMENT (sym, text_section);
4513 symbol_set_frag (sym, frag_now);
4514 S_SET_VALUE (sym, frag_now_fix ());
4515 S_SET_STORAGE_CLASS (sym, C_FCN);
4516 S_SET_NUMBER_AUXILIARY (sym, 1);
4517 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
4518 symbol_get_tc (sym)->output = 1;
4520 ppc_frob_label (sym);
4522 demand_empty_rest_of_line ();
4525 /* The .bi and .ei pseudo-ops. These take a string argument and
4526 generates a C_BINCL or C_EINCL symbol, which goes at the start of
4527 the symbol list. The value of .bi will be know when the next .bf
4533 static symbolS *last_biei;
4540 name = demand_copy_C_string (&len);
4542 /* The value of these symbols is actually file offset. Here we set
4543 the value to the index into the line number entries. In
4544 ppc_frob_symbols we set the fix_line field, which will cause BFD
4545 to do the right thing. */
4547 sym = symbol_make (name);
4548 /* obj-coff.c currently only handles line numbers correctly in the
4550 S_SET_SEGMENT (sym, text_section);
4551 S_SET_VALUE (sym, coff_n_line_nos);
4552 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4554 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
4555 symbol_get_tc (sym)->output = 1;
4563 for (look = last_biei ? last_biei : symbol_rootP;
4564 (look != (symbolS *) NULL
4565 && (S_GET_STORAGE_CLASS (look) == C_FILE
4566 || S_GET_STORAGE_CLASS (look) == C_BINCL
4567 || S_GET_STORAGE_CLASS (look) == C_EINCL));
4568 look = symbol_next (look))
4570 if (look != (symbolS *) NULL)
4572 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4573 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
4577 demand_empty_rest_of_line ();
4580 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
4581 There is one argument, which is a csect symbol. The value of the
4582 .bs symbol is the index of this csect symbol. */
4585 ppc_bs (int ignore ATTRIBUTE_UNUSED)
4592 if (ppc_current_block != NULL)
4593 as_bad (_("nested .bs blocks"));
4595 endc = get_symbol_name (&name);
4597 csect = symbol_find_or_make (name);
4599 (void) restore_line_pointer (endc);
4601 sym = symbol_make (".bs");
4602 S_SET_SEGMENT (sym, now_seg);
4603 S_SET_STORAGE_CLASS (sym, C_BSTAT);
4604 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4605 symbol_get_tc (sym)->output = 1;
4607 symbol_get_tc (sym)->within = csect;
4609 ppc_frob_label (sym);
4611 ppc_current_block = sym;
4613 demand_empty_rest_of_line ();
4616 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
4619 ppc_es (int ignore ATTRIBUTE_UNUSED)
4623 if (ppc_current_block == NULL)
4624 as_bad (_(".es without preceding .bs"));
4626 sym = symbol_make (".es");
4627 S_SET_SEGMENT (sym, now_seg);
4628 S_SET_STORAGE_CLASS (sym, C_ESTAT);
4629 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4630 symbol_get_tc (sym)->output = 1;
4632 ppc_frob_label (sym);
4634 ppc_current_block = NULL;
4636 demand_empty_rest_of_line ();
4639 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
4643 ppc_bb (int ignore ATTRIBUTE_UNUSED)
4647 sym = symbol_make (".bb");
4648 S_SET_SEGMENT (sym, text_section);
4649 symbol_set_frag (sym, frag_now);
4650 S_SET_VALUE (sym, frag_now_fix ());
4651 S_SET_STORAGE_CLASS (sym, C_BLOCK);
4653 S_SET_NUMBER_AUXILIARY (sym, 1);
4654 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
4656 symbol_get_tc (sym)->output = 1;
4658 SF_SET_PROCESS (sym);
4660 ppc_frob_label (sym);
4662 demand_empty_rest_of_line ();
4665 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
4669 ppc_eb (int ignore ATTRIBUTE_UNUSED)
4673 sym = symbol_make (".eb");
4674 S_SET_SEGMENT (sym, text_section);
4675 symbol_set_frag (sym, frag_now);
4676 S_SET_VALUE (sym, frag_now_fix ());
4677 S_SET_STORAGE_CLASS (sym, C_BLOCK);
4678 S_SET_NUMBER_AUXILIARY (sym, 1);
4679 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
4680 symbol_get_tc (sym)->output = 1;
4682 SF_SET_PROCESS (sym);
4684 ppc_frob_label (sym);
4686 demand_empty_rest_of_line ();
4689 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
4693 ppc_bc (int ignore ATTRIBUTE_UNUSED)
4699 name = demand_copy_C_string (&len);
4700 sym = symbol_make (name);
4701 S_SET_SEGMENT (sym, ppc_coff_debug_section);
4702 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4703 S_SET_STORAGE_CLASS (sym, C_BCOMM);
4704 S_SET_VALUE (sym, 0);
4705 symbol_get_tc (sym)->output = 1;
4707 ppc_frob_label (sym);
4709 demand_empty_rest_of_line ();
4712 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
4715 ppc_ec (int ignore ATTRIBUTE_UNUSED)
4719 sym = symbol_make (".ec");
4720 S_SET_SEGMENT (sym, ppc_coff_debug_section);
4721 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4722 S_SET_STORAGE_CLASS (sym, C_ECOMM);
4723 S_SET_VALUE (sym, 0);
4724 symbol_get_tc (sym)->output = 1;
4726 ppc_frob_label (sym);
4728 demand_empty_rest_of_line ();
4731 /* The .toc pseudo-op. Switch to the .toc subsegment. */
4734 ppc_toc (int ignore ATTRIBUTE_UNUSED)
4736 if (ppc_toc_csect != (symbolS *) NULL)
4737 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
4744 subseg = ppc_data_subsegment;
4745 ++ppc_data_subsegment;
4747 subseg_new (segment_name (data_section), subseg);
4748 ppc_toc_frag = frag_now;
4750 sym = symbol_find_or_make ("TOC[TC0]");
4751 symbol_set_frag (sym, frag_now);
4752 S_SET_SEGMENT (sym, data_section);
4753 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4754 symbol_get_tc (sym)->subseg = subseg;
4755 symbol_get_tc (sym)->output = 1;
4756 symbol_get_tc (sym)->within = sym;
4758 ppc_toc_csect = sym;
4760 for (list = ppc_data_csects;
4761 symbol_get_tc (list)->next != (symbolS *) NULL;
4762 list = symbol_get_tc (list)->next)
4764 symbol_get_tc (list)->next = sym;
4766 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4767 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
4771 ppc_current_csect = ppc_toc_csect;
4773 demand_empty_rest_of_line ();
4776 /* The AIX assembler automatically aligns the operands of a .long or
4777 .short pseudo-op, and we want to be compatible. */
4780 ppc_xcoff_cons (int log_size)
4782 frag_align (log_size, 0, 0);
4783 record_alignment (now_seg, log_size);
4784 cons (1 << log_size);
4788 ppc_vbyte (int dummy ATTRIBUTE_UNUSED)
4793 (void) expression (&exp);
4795 if (exp.X_op != O_constant)
4797 as_bad (_("non-constant byte count"));
4801 byte_count = exp.X_add_number;
4803 if (*input_line_pointer != ',')
4805 as_bad (_("missing value"));
4809 ++input_line_pointer;
4814 ppc_xcoff_end (void)
4818 for (i = 0; i < XCOFF_DWSECT_NBR_NAMES; i++)
4820 struct dw_section *dws = &dw_sections[i];
4821 struct dw_subsection *dwss;
4823 if (dws->anon_subseg)
4825 dwss = dws->anon_subseg;
4826 dwss->link = dws->list_subseg;
4829 dwss = dws->list_subseg;
4831 for (; dwss != NULL; dwss = dwss->link)
4832 if (dwss->end_exp.X_add_symbol != NULL)
4834 subseg_set (dws->sect, dwss->subseg);
4835 symbol_set_value_now (dwss->end_exp.X_add_symbol);
4840 #endif /* OBJ_XCOFF */
4841 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
4843 /* The .tc pseudo-op. This is used when generating either XCOFF or
4844 ELF. This takes two or more arguments.
4846 When generating XCOFF output, the first argument is the name to
4847 give to this location in the toc; this will be a symbol with class
4848 TC. The rest of the arguments are N-byte values to actually put at
4849 this location in the TOC; often there is just one more argument, a
4850 relocatable symbol reference. The size of the value to store
4851 depends on target word size. A 32-bit target uses 4-byte values, a
4852 64-bit target uses 8-byte values.
4854 When not generating XCOFF output, the arguments are the same, but
4855 the first argument is simply ignored. */
4858 ppc_tc (int ignore ATTRIBUTE_UNUSED)
4862 /* Define the TOC symbol name. */
4868 if (ppc_toc_csect == (symbolS *) NULL
4869 || ppc_toc_csect != ppc_current_csect)
4871 as_bad (_(".tc not in .toc section"));
4872 ignore_rest_of_line ();
4876 endc = get_symbol_name (&name);
4878 sym = symbol_find_or_make (name);
4880 (void) restore_line_pointer (endc);
4882 if (S_IS_DEFINED (sym))
4886 label = symbol_get_tc (ppc_current_csect)->within;
4887 if (symbol_get_tc (label)->symbol_class != XMC_TC0)
4889 as_bad (_(".tc with no label"));
4890 ignore_rest_of_line ();
4894 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
4895 symbol_set_frag (label, symbol_get_frag (sym));
4896 S_SET_VALUE (label, S_GET_VALUE (sym));
4898 while (! is_end_of_line[(unsigned char) *input_line_pointer])
4899 ++input_line_pointer;
4904 S_SET_SEGMENT (sym, now_seg);
4905 symbol_set_frag (sym, frag_now);
4906 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4907 symbol_get_tc (sym)->symbol_class = XMC_TC;
4908 symbol_get_tc (sym)->output = 1;
4910 ppc_frob_label (sym);
4913 #endif /* OBJ_XCOFF */
4917 /* Skip the TOC symbol name. */
4918 while (is_part_of_name (*input_line_pointer)
4919 || *input_line_pointer == ' '
4920 || *input_line_pointer == '['
4921 || *input_line_pointer == ']'
4922 || *input_line_pointer == '{'
4923 || *input_line_pointer == '}')
4924 ++input_line_pointer;
4926 /* Align to a four/eight byte boundary. */
4927 align = ppc_obj64 ? 3 : 2;
4928 frag_align (align, 0, 0);
4929 record_alignment (now_seg, align);
4930 #endif /* OBJ_ELF */
4932 if (*input_line_pointer != ',')
4933 demand_empty_rest_of_line ();
4936 ++input_line_pointer;
4937 cons (ppc_obj64 ? 8 : 4);
4941 /* Pseudo-op .machine. */
4944 ppc_machine (int ignore ATTRIBUTE_UNUSED)
4948 #define MAX_HISTORY 100
4949 static ppc_cpu_t *cpu_history;
4950 static int curr_hist;
4954 c = get_symbol_name (&cpu_string);
4955 cpu_string = xstrdup (cpu_string);
4956 (void) restore_line_pointer (c);
4958 if (cpu_string != NULL)
4960 ppc_cpu_t old_cpu = ppc_cpu;
4964 for (p = cpu_string; *p != 0; p++)
4967 if (strcmp (cpu_string, "push") == 0)
4969 if (cpu_history == NULL)
4970 cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history));
4972 if (curr_hist >= MAX_HISTORY)
4973 as_bad (_(".machine stack overflow"));
4975 cpu_history[curr_hist++] = ppc_cpu;
4977 else if (strcmp (cpu_string, "pop") == 0)
4980 as_bad (_(".machine stack underflow"));
4982 ppc_cpu = cpu_history[--curr_hist];
4984 else if ((new_cpu = ppc_parse_cpu (ppc_cpu, &sticky, cpu_string)) != 0)
4987 as_bad (_("invalid machine `%s'"), cpu_string);
4989 if (ppc_cpu != old_cpu)
4990 ppc_setup_opcodes ();
4993 demand_empty_rest_of_line ();
4995 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4999 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
5001 /* Set the current section. */
5003 ppc_set_current_section (segT new)
5005 ppc_previous_section = ppc_current_section;
5006 ppc_current_section = new;
5009 /* pseudo-op: .previous
5010 behaviour: toggles the current section with the previous section.
5012 warnings: "No previous section" */
5015 ppc_previous (int ignore ATTRIBUTE_UNUSED)
5017 if (ppc_previous_section == NULL)
5019 as_warn (_("no previous section to return to, ignored."));
5023 subseg_set (ppc_previous_section, 0);
5025 ppc_set_current_section (ppc_previous_section);
5028 /* pseudo-op: .pdata
5029 behaviour: predefined read only data section
5033 initial: .section .pdata "adr3"
5034 a - don't know -- maybe a misprint
5035 d - initialized data
5037 3 - double word aligned (that would be 4 byte boundary)
5040 Tag index tables (also known as the function table) for exception
5041 handling, debugging, etc. */
5044 ppc_pdata (int ignore ATTRIBUTE_UNUSED)
5046 if (pdata_section == 0)
5048 pdata_section = subseg_new (".pdata", 0);
5050 bfd_set_section_flags (stdoutput, pdata_section,
5051 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
5052 | SEC_READONLY | SEC_DATA ));
5054 bfd_set_section_alignment (stdoutput, pdata_section, 2);
5058 pdata_section = subseg_new (".pdata", 0);
5060 ppc_set_current_section (pdata_section);
5063 /* pseudo-op: .ydata
5064 behaviour: predefined read only data section
5068 initial: .section .ydata "drw3"
5069 a - don't know -- maybe a misprint
5070 d - initialized data
5072 3 - double word aligned (that would be 4 byte boundary)
5074 Tag tables (also known as the scope table) for exception handling,
5078 ppc_ydata (int ignore ATTRIBUTE_UNUSED)
5080 if (ydata_section == 0)
5082 ydata_section = subseg_new (".ydata", 0);
5083 bfd_set_section_flags (stdoutput, ydata_section,
5084 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
5085 | SEC_READONLY | SEC_DATA ));
5087 bfd_set_section_alignment (stdoutput, ydata_section, 3);
5091 ydata_section = subseg_new (".ydata", 0);
5093 ppc_set_current_section (ydata_section);
5096 /* pseudo-op: .reldata
5097 behaviour: predefined read write data section
5098 double word aligned (4-byte)
5099 FIXME: relocation is applied to it
5100 FIXME: what's the difference between this and .data?
5103 initial: .section .reldata "drw3"
5104 d - initialized data
5107 3 - double word aligned (that would be 8 byte boundary)
5110 Like .data, but intended to hold data subject to relocation, such as
5111 function descriptors, etc. */
5114 ppc_reldata (int ignore ATTRIBUTE_UNUSED)
5116 if (reldata_section == 0)
5118 reldata_section = subseg_new (".reldata", 0);
5120 bfd_set_section_flags (stdoutput, reldata_section,
5121 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
5124 bfd_set_section_alignment (stdoutput, reldata_section, 2);
5128 reldata_section = subseg_new (".reldata", 0);
5130 ppc_set_current_section (reldata_section);
5133 /* pseudo-op: .rdata
5134 behaviour: predefined read only data section
5138 initial: .section .rdata "dr3"
5139 d - initialized data
5141 3 - double word aligned (that would be 4 byte boundary) */
5144 ppc_rdata (int ignore ATTRIBUTE_UNUSED)
5146 if (rdata_section == 0)
5148 rdata_section = subseg_new (".rdata", 0);
5149 bfd_set_section_flags (stdoutput, rdata_section,
5150 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
5151 | SEC_READONLY | SEC_DATA ));
5153 bfd_set_section_alignment (stdoutput, rdata_section, 2);
5157 rdata_section = subseg_new (".rdata", 0);
5159 ppc_set_current_section (rdata_section);
5162 /* pseudo-op: .ualong
5163 behaviour: much like .int, with the exception that no alignment is
5165 FIXME: test the alignment statement
5170 ppc_ualong (int ignore ATTRIBUTE_UNUSED)
5176 /* pseudo-op: .znop <symbol name>
5177 behaviour: Issue a nop instruction
5178 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
5179 the supplied symbol name.
5181 warnings: Missing symbol name */
5184 ppc_znop (int ignore ATTRIBUTE_UNUSED)
5187 const struct powerpc_opcode *opcode;
5194 /* Strip out the symbol name. */
5195 c = get_symbol_name (&symbol_name);
5197 name = xmalloc (input_line_pointer - symbol_name + 1);
5198 strcpy (name, symbol_name);
5200 sym = symbol_find_or_make (name);
5202 *input_line_pointer = c;
5204 SKIP_WHITESPACE_AFTER_NAME ();
5206 /* Look up the opcode in the hash table. */
5207 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
5209 /* Stick in the nop. */
5210 insn = opcode->opcode;
5212 /* Write out the instruction. */
5214 md_number_to_chars (f, insn, 4);
5216 f - frag_now->fr_literal,
5221 BFD_RELOC_16_GOT_PCREL);
5231 ppc_pe_comm (int lcomm)
5240 c = get_symbol_name (&name);
5242 /* just after name is now '\0'. */
5243 p = input_line_pointer;
5245 SKIP_WHITESPACE_AFTER_NAME ();
5246 if (*input_line_pointer != ',')
5248 as_bad (_("expected comma after symbol-name: rest of line ignored."));
5249 ignore_rest_of_line ();
5253 input_line_pointer++; /* skip ',' */
5254 if ((temp = get_absolute_expression ()) < 0)
5256 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
5257 ignore_rest_of_line ();
5263 /* The third argument to .comm is the alignment. */
5264 if (*input_line_pointer != ',')
5268 ++input_line_pointer;
5269 align = get_absolute_expression ();
5272 as_warn (_("ignoring bad alignment"));
5279 symbolP = symbol_find_or_make (name);
5282 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
5284 as_bad (_("ignoring attempt to re-define symbol `%s'."),
5285 S_GET_NAME (symbolP));
5286 ignore_rest_of_line ();
5290 if (S_GET_VALUE (symbolP))
5292 if (S_GET_VALUE (symbolP) != (valueT) temp)
5293 as_bad (_("length of .comm \"%s\" is already %ld. Not changed to %ld."),
5294 S_GET_NAME (symbolP),
5295 (long) S_GET_VALUE (symbolP),
5300 S_SET_VALUE (symbolP, (valueT) temp);
5301 S_SET_EXTERNAL (symbolP);
5302 S_SET_SEGMENT (symbolP, bfd_com_section_ptr);
5305 demand_empty_rest_of_line ();
5309 * implement the .section pseudo op:
5310 * .section name {, "flags"}
5312 * | +--- optional flags: 'b' for bss
5314 * +-- section name 'l' for lib
5318 * 'd' (apparently m88k for data)
5320 * But if the argument is not a quoted string, treat it as a
5321 * subsegment number.
5323 * FIXME: this is a copy of the section processing from obj-coff.c, with
5324 * additions/changes for the moto-pas assembler support. There are three
5327 * FIXME: I just noticed this. This doesn't work at all really. It it
5328 * setting bits that bfd probably neither understands or uses. The
5329 * correct approach (?) will have to incorporate extra fields attached
5330 * to the section to hold the system specific stuff. (krk)
5333 * 'a' - unknown - referred to in documentation, but no definition supplied
5334 * 'c' - section has code
5335 * 'd' - section has initialized data
5336 * 'u' - section has uninitialized data
5337 * 'i' - section contains directives (info)
5338 * 'n' - section can be discarded
5339 * 'R' - remove section at link time
5341 * Section Protection:
5342 * 'r' - section is readable
5343 * 'w' - section is writeable
5344 * 'x' - section is executable
5345 * 's' - section is sharable
5347 * Section Alignment:
5348 * '0' - align to byte boundary
5349 * '1' - align to halfword undary
5350 * '2' - align to word boundary
5351 * '3' - align to doubleword boundary
5352 * '4' - align to quadword boundary
5353 * '5' - align to 32 byte boundary
5354 * '6' - align to 64 byte boundary
5359 ppc_pe_section (int ignore ATTRIBUTE_UNUSED)
5361 /* Strip out the section name. */
5370 c = get_symbol_name (§ion_name);
5372 name = xmalloc (input_line_pointer - section_name + 1);
5373 strcpy (name, section_name);
5375 *input_line_pointer = c;
5377 SKIP_WHITESPACE_AFTER_NAME ();
5380 flags = SEC_NO_FLAGS;
5382 if (strcmp (name, ".idata$2") == 0)
5386 else if (strcmp (name, ".idata$3") == 0)
5390 else if (strcmp (name, ".idata$4") == 0)
5394 else if (strcmp (name, ".idata$5") == 0)
5398 else if (strcmp (name, ".idata$6") == 0)
5403 /* Default alignment to 16 byte boundary. */
5406 if (*input_line_pointer == ',')
5408 ++input_line_pointer;
5410 if (*input_line_pointer != '"')
5411 exp = get_absolute_expression ();
5414 ++input_line_pointer;
5415 while (*input_line_pointer != '"'
5416 && ! is_end_of_line[(unsigned char) *input_line_pointer])
5418 switch (*input_line_pointer)
5420 /* Section Contents */
5421 case 'a': /* unknown */
5422 as_bad (_("unsupported section attribute -- 'a'"));
5424 case 'c': /* code section */
5427 case 'd': /* section has initialized data */
5430 case 'u': /* section has uninitialized data */
5431 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
5435 case 'i': /* section contains directives (info) */
5436 /* FIXME: This is IMAGE_SCN_LNK_INFO
5438 flags |= SEC_HAS_CONTENTS;
5440 case 'n': /* section can be discarded */
5443 case 'R': /* Remove section at link time */
5444 flags |= SEC_NEVER_LOAD;
5446 #if IFLICT_BRAIN_DAMAGE
5447 /* Section Protection */
5448 case 'r': /* section is readable */
5449 flags |= IMAGE_SCN_MEM_READ;
5451 case 'w': /* section is writeable */
5452 flags |= IMAGE_SCN_MEM_WRITE;
5454 case 'x': /* section is executable */
5455 flags |= IMAGE_SCN_MEM_EXECUTE;
5457 case 's': /* section is sharable */
5458 flags |= IMAGE_SCN_MEM_SHARED;
5461 /* Section Alignment */
5462 case '0': /* align to byte boundary */
5463 flags |= IMAGE_SCN_ALIGN_1BYTES;
5466 case '1': /* align to halfword boundary */
5467 flags |= IMAGE_SCN_ALIGN_2BYTES;
5470 case '2': /* align to word boundary */
5471 flags |= IMAGE_SCN_ALIGN_4BYTES;
5474 case '3': /* align to doubleword boundary */
5475 flags |= IMAGE_SCN_ALIGN_8BYTES;
5478 case '4': /* align to quadword boundary */
5479 flags |= IMAGE_SCN_ALIGN_16BYTES;
5482 case '5': /* align to 32 byte boundary */
5483 flags |= IMAGE_SCN_ALIGN_32BYTES;
5486 case '6': /* align to 64 byte boundary */
5487 flags |= IMAGE_SCN_ALIGN_64BYTES;
5492 as_bad (_("unknown section attribute '%c'"),
5493 *input_line_pointer);
5496 ++input_line_pointer;
5498 if (*input_line_pointer == '"')
5499 ++input_line_pointer;
5503 sec = subseg_new (name, (subsegT) exp);
5505 ppc_set_current_section (sec);
5507 if (flags != SEC_NO_FLAGS)
5509 if (! bfd_set_section_flags (stdoutput, sec, flags))
5510 as_bad (_("error setting flags for \"%s\": %s"),
5511 bfd_section_name (stdoutput, sec),
5512 bfd_errmsg (bfd_get_error ()));
5515 bfd_set_section_alignment (stdoutput, sec, align);
5519 ppc_pe_function (int ignore ATTRIBUTE_UNUSED)
5525 endc = get_symbol_name (&name);
5527 ext_sym = symbol_find_or_make (name);
5529 (void) restore_line_pointer (endc);
5531 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
5532 SF_SET_FUNCTION (ext_sym);
5533 SF_SET_PROCESS (ext_sym);
5534 coff_add_linesym (ext_sym);
5536 demand_empty_rest_of_line ();
5540 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED)
5542 if (tocdata_section == 0)
5544 tocdata_section = subseg_new (".tocd", 0);
5545 /* FIXME: section flags won't work. */
5546 bfd_set_section_flags (stdoutput, tocdata_section,
5547 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
5548 | SEC_READONLY | SEC_DATA));
5550 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
5554 rdata_section = subseg_new (".tocd", 0);
5557 ppc_set_current_section (tocdata_section);
5559 demand_empty_rest_of_line ();
5562 /* Don't adjust TOC relocs to use the section symbol. */
5565 ppc_pe_fix_adjustable (fixS *fix)
5567 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
5574 /* XCOFF specific symbol and file handling. */
5576 /* Canonicalize the symbol name. We use the to force the suffix, if
5577 any, to use square brackets, and to be in upper case. */
5580 ppc_canonicalize_symbol_name (char *name)
5584 if (ppc_stab_symbol)
5587 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
5601 for (s++; *s != '\0' && *s != brac; s++)
5604 if (*s == '\0' || s[1] != '\0')
5605 as_bad (_("bad symbol suffix"));
5613 /* Set the class of a symbol based on the suffix, if any. This is
5614 called whenever a new symbol is created. */
5617 ppc_symbol_new_hook (symbolS *sym)
5619 struct ppc_tc_sy *tc;
5622 tc = symbol_get_tc (sym);
5625 tc->symbol_class = -1;
5626 tc->real_name = NULL;
5633 if (ppc_stab_symbol)
5636 s = strchr (S_GET_NAME (sym), '[');
5637 if (s == (const char *) NULL)
5639 /* There is no suffix. */
5648 if (strcmp (s, "BS]") == 0)
5649 tc->symbol_class = XMC_BS;
5652 if (strcmp (s, "DB]") == 0)
5653 tc->symbol_class = XMC_DB;
5654 else if (strcmp (s, "DS]") == 0)
5655 tc->symbol_class = XMC_DS;
5658 if (strcmp (s, "GL]") == 0)
5659 tc->symbol_class = XMC_GL;
5662 if (strcmp (s, "PR]") == 0)
5663 tc->symbol_class = XMC_PR;
5666 if (strcmp (s, "RO]") == 0)
5667 tc->symbol_class = XMC_RO;
5668 else if (strcmp (s, "RW]") == 0)
5669 tc->symbol_class = XMC_RW;
5672 if (strcmp (s, "SV]") == 0)
5673 tc->symbol_class = XMC_SV;
5676 if (strcmp (s, "TC]") == 0)
5677 tc->symbol_class = XMC_TC;
5678 else if (strcmp (s, "TI]") == 0)
5679 tc->symbol_class = XMC_TI;
5680 else if (strcmp (s, "TB]") == 0)
5681 tc->symbol_class = XMC_TB;
5682 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
5683 tc->symbol_class = XMC_TC0;
5686 if (strcmp (s, "UA]") == 0)
5687 tc->symbol_class = XMC_UA;
5688 else if (strcmp (s, "UC]") == 0)
5689 tc->symbol_class = XMC_UC;
5692 if (strcmp (s, "XO]") == 0)
5693 tc->symbol_class = XMC_XO;
5697 if (tc->symbol_class == -1)
5698 as_bad (_("unrecognized symbol suffix"));
5701 /* Set the class of a label based on where it is defined. This
5702 handles symbols without suffixes. Also, move the symbol so that it
5703 follows the csect symbol. */
5706 ppc_frob_label (symbolS *sym)
5708 if (ppc_current_csect != (symbolS *) NULL)
5710 if (symbol_get_tc (sym)->symbol_class == -1)
5711 symbol_get_tc (sym)->symbol_class = symbol_get_tc (ppc_current_csect)->symbol_class;
5713 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
5714 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
5715 &symbol_rootP, &symbol_lastP);
5716 symbol_get_tc (ppc_current_csect)->within = sym;
5717 symbol_get_tc (sym)->within = ppc_current_csect;
5721 dwarf2_emit_label (sym);
5725 /* This variable is set by ppc_frob_symbol if any absolute symbols are
5726 seen. It tells ppc_adjust_symtab whether it needs to look through
5729 static bfd_boolean ppc_saw_abs;
5731 /* Change the name of a symbol just before writing it out. Set the
5732 real name if the .rename pseudo-op was used. Otherwise, remove any
5733 class suffix. Return 1 if the symbol should not be included in the
5737 ppc_frob_symbol (symbolS *sym)
5739 static symbolS *ppc_last_function;
5740 static symbolS *set_end;
5742 /* Discard symbols that should not be included in the output symbol
5744 if (! symbol_used_in_reloc_p (sym)
5745 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
5746 || (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5747 && ! symbol_get_tc (sym)->output
5748 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
5751 /* This one will disappear anyway. Don't make a csect sym for it. */
5752 if (sym == abs_section_sym)
5755 if (symbol_get_tc (sym)->real_name != (char *) NULL)
5756 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
5762 name = S_GET_NAME (sym);
5763 s = strchr (name, '[');
5764 if (s != (char *) NULL)
5770 snew = xmalloc (len + 1);
5771 memcpy (snew, name, len);
5774 S_SET_NAME (sym, snew);
5778 if (set_end != (symbolS *) NULL)
5780 SA_SET_SYM_ENDNDX (set_end, sym);
5784 if (SF_GET_FUNCTION (sym))
5786 if (ppc_last_function != (symbolS *) NULL)
5787 as_bad (_("two .function pseudo-ops with no intervening .ef"));
5788 ppc_last_function = sym;
5789 if (symbol_get_tc (sym)->u.size != (symbolS *) NULL)
5791 resolve_symbol_value (symbol_get_tc (sym)->u.size);
5792 SA_SET_SYM_FSIZE (sym,
5793 (long) S_GET_VALUE (symbol_get_tc (sym)->u.size));
5796 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
5797 && strcmp (S_GET_NAME (sym), ".ef") == 0)
5799 if (ppc_last_function == (symbolS *) NULL)
5800 as_bad (_(".ef with no preceding .function"));
5803 set_end = ppc_last_function;
5804 ppc_last_function = NULL;
5806 /* We don't have a C_EFCN symbol, but we need to force the
5807 COFF backend to believe that it has seen one. */
5808 coff_last_function = NULL;
5812 if (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5813 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
5814 && S_GET_STORAGE_CLASS (sym) != C_FILE
5815 && S_GET_STORAGE_CLASS (sym) != C_FCN
5816 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
5817 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
5818 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
5819 && S_GET_STORAGE_CLASS (sym) != C_BINCL
5820 && S_GET_STORAGE_CLASS (sym) != C_EINCL
5821 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
5822 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
5824 if (S_GET_STORAGE_CLASS (sym) == C_EXT
5825 || S_GET_STORAGE_CLASS (sym) == C_AIX_WEAKEXT
5826 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
5829 union internal_auxent *a;
5831 /* Create a csect aux. */
5832 i = S_GET_NUMBER_AUXILIARY (sym);
5833 S_SET_NUMBER_AUXILIARY (sym, i + 1);
5834 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
5835 if (symbol_get_tc (sym)->symbol_class == XMC_TC0)
5837 /* This is the TOC table. */
5838 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
5839 a->x_csect.x_scnlen.l = 0;
5840 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5842 else if (symbol_get_tc (sym)->subseg != 0)
5844 /* This is a csect symbol. x_scnlen is the size of the
5846 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
5847 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5848 S_GET_SEGMENT (sym))
5849 - S_GET_VALUE (sym));
5852 resolve_symbol_value (symbol_get_tc (sym)->next);
5853 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
5854 - S_GET_VALUE (sym));
5856 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
5858 else if (S_GET_SEGMENT (sym) == bss_section)
5860 /* This is a common symbol. */
5861 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
5862 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
5863 if (S_IS_EXTERNAL (sym))
5864 symbol_get_tc (sym)->symbol_class = XMC_RW;
5866 symbol_get_tc (sym)->symbol_class = XMC_BS;
5868 else if (S_GET_SEGMENT (sym) == absolute_section)
5870 /* This is an absolute symbol. The csect will be created by
5871 ppc_adjust_symtab. */
5873 a->x_csect.x_smtyp = XTY_LD;
5874 if (symbol_get_tc (sym)->symbol_class == -1)
5875 symbol_get_tc (sym)->symbol_class = XMC_XO;
5877 else if (! S_IS_DEFINED (sym))
5879 /* This is an external symbol. */
5880 a->x_csect.x_scnlen.l = 0;
5881 a->x_csect.x_smtyp = XTY_ER;
5883 else if (symbol_get_tc (sym)->symbol_class == XMC_TC)
5887 /* This is a TOC definition. x_scnlen is the size of the
5889 next = symbol_next (sym);
5890 while (symbol_get_tc (next)->symbol_class == XMC_TC0)
5891 next = symbol_next (next);
5892 if (next == (symbolS *) NULL
5893 || symbol_get_tc (next)->symbol_class != XMC_TC)
5895 if (ppc_after_toc_frag == (fragS *) NULL)
5896 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5898 - S_GET_VALUE (sym));
5900 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
5901 - S_GET_VALUE (sym));
5905 resolve_symbol_value (next);
5906 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
5907 - S_GET_VALUE (sym));
5909 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5915 /* This is a normal symbol definition. x_scnlen is the
5916 symbol index of the containing csect. */
5917 if (S_GET_SEGMENT (sym) == text_section)
5918 csect = ppc_text_csects;
5919 else if (S_GET_SEGMENT (sym) == data_section)
5920 csect = ppc_data_csects;
5924 /* Skip the initial dummy symbol. */
5925 csect = symbol_get_tc (csect)->next;
5927 if (csect == (symbolS *) NULL)
5929 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
5930 a->x_csect.x_scnlen.l = 0;
5934 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
5936 resolve_symbol_value (symbol_get_tc (csect)->next);
5937 if (S_GET_VALUE (symbol_get_tc (csect)->next)
5938 > S_GET_VALUE (sym))
5940 csect = symbol_get_tc (csect)->next;
5943 a->x_csect.x_scnlen.p =
5944 coffsymbol (symbol_get_bfdsym (csect))->native;
5945 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
5948 a->x_csect.x_smtyp = XTY_LD;
5951 a->x_csect.x_parmhash = 0;
5952 a->x_csect.x_snhash = 0;
5953 if (symbol_get_tc (sym)->symbol_class == -1)
5954 a->x_csect.x_smclas = XMC_PR;
5956 a->x_csect.x_smclas = symbol_get_tc (sym)->symbol_class;
5957 a->x_csect.x_stab = 0;
5958 a->x_csect.x_snstab = 0;
5960 /* Don't let the COFF backend resort these symbols. */
5961 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
5963 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
5965 /* We want the value to be the symbol index of the referenced
5966 csect symbol. BFD will do that for us if we set the right
5968 asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within);
5969 combined_entry_type *c = coffsymbol (bsym)->native;
5971 S_SET_VALUE (sym, (valueT) (size_t) c);
5972 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
5974 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
5979 block = symbol_get_tc (sym)->within;
5982 /* The value is the offset from the enclosing csect. */
5985 csect = symbol_get_tc (block)->within;
5986 resolve_symbol_value (csect);
5987 base = S_GET_VALUE (csect);
5992 S_SET_VALUE (sym, S_GET_VALUE (sym) - base);
5994 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
5995 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
5997 /* We want the value to be a file offset into the line numbers.
5998 BFD will do that for us if we set the right flags. We have
5999 already set the value correctly. */
6000 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
6006 /* Adjust the symbol table. This creates csect symbols for all
6007 absolute symbols. */
6010 ppc_adjust_symtab (void)
6017 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
6021 union internal_auxent *a;
6023 if (S_GET_SEGMENT (sym) != absolute_section)
6026 csect = symbol_create (".abs[XO]", absolute_section,
6027 S_GET_VALUE (sym), &zero_address_frag);
6028 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
6029 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
6030 i = S_GET_NUMBER_AUXILIARY (csect);
6031 S_SET_NUMBER_AUXILIARY (csect, i + 1);
6032 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
6033 a->x_csect.x_scnlen.l = 0;
6034 a->x_csect.x_smtyp = XTY_SD;
6035 a->x_csect.x_parmhash = 0;
6036 a->x_csect.x_snhash = 0;
6037 a->x_csect.x_smclas = XMC_XO;
6038 a->x_csect.x_stab = 0;
6039 a->x_csect.x_snstab = 0;
6041 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
6043 i = S_GET_NUMBER_AUXILIARY (sym);
6044 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
6045 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
6046 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
6049 ppc_saw_abs = FALSE;
6052 /* Set the VMA for a section. This is called on all the sections in
6056 ppc_frob_section (asection *sec)
6058 static bfd_vma vma = 0;
6060 /* Dwarf sections start at 0. */
6061 if (bfd_get_section_flags (NULL, sec) & SEC_DEBUGGING)
6064 vma = md_section_align (sec, vma);
6065 bfd_set_section_vma (stdoutput, sec, vma);
6066 vma += bfd_section_size (stdoutput, sec);
6069 #endif /* OBJ_XCOFF */
6072 md_atof (int type, char *litp, int *sizep)
6074 return ieee_md_atof (type, litp, sizep, target_big_endian);
6077 /* Write a value out to the object file, using the appropriate
6081 md_number_to_chars (char *buf, valueT val, int n)
6083 if (target_big_endian)
6084 number_to_chars_bigendian (buf, val, n);
6086 number_to_chars_littleendian (buf, val, n);
6089 /* Align a section (I don't know why this is machine dependent). */
6092 md_section_align (asection *seg ATTRIBUTE_UNUSED, valueT addr)
6097 int align = bfd_get_section_alignment (stdoutput, seg);
6099 return ((addr + (1 << align) - 1) & -(1 << align));
6103 /* We don't have any form of relaxing. */
6106 md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED,
6107 asection *seg ATTRIBUTE_UNUSED)
6113 /* Convert a machine dependent frag. We never generate these. */
6116 md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
6117 asection *sec ATTRIBUTE_UNUSED,
6118 fragS *fragp ATTRIBUTE_UNUSED)
6123 /* We have no need to default values of symbols. */
6126 md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
6131 /* Functions concerning relocs. */
6133 /* The location from which a PC relative jump should be calculated,
6134 given a PC relative reloc. */
6137 md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED)
6139 return fixp->fx_frag->fr_address + fixp->fx_where;
6144 /* This is called to see whether a fixup should be adjusted to use a
6145 section symbol. We take the opportunity to change a fixup against
6146 a symbol in the TOC subsegment into a reloc against the
6147 corresponding .tc symbol. */
6150 ppc_fix_adjustable (fixS *fix)
6152 valueT val = resolve_symbol_value (fix->fx_addsy);
6153 segT symseg = S_GET_SEGMENT (fix->fx_addsy);
6154 TC_SYMFIELD_TYPE *tc;
6156 if (symseg == absolute_section)
6159 /* Always adjust symbols in debugging sections. */
6160 if (bfd_get_section_flags (stdoutput, symseg) & SEC_DEBUGGING)
6163 if (ppc_toc_csect != (symbolS *) NULL
6164 && fix->fx_addsy != ppc_toc_csect
6165 && symseg == data_section
6166 && val >= ppc_toc_frag->fr_address
6167 && (ppc_after_toc_frag == (fragS *) NULL
6168 || val < ppc_after_toc_frag->fr_address))
6172 for (sy = symbol_next (ppc_toc_csect);
6173 sy != (symbolS *) NULL;
6174 sy = symbol_next (sy))
6176 TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy);
6178 if (sy_tc->symbol_class == XMC_TC0)
6180 if (sy_tc->symbol_class != XMC_TC)
6182 if (val == resolve_symbol_value (sy))
6185 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
6190 as_bad_where (fix->fx_file, fix->fx_line,
6191 _("symbol in .toc does not match any .tc"));
6194 /* Possibly adjust the reloc to be against the csect. */
6195 tc = symbol_get_tc (fix->fx_addsy);
6197 && tc->symbol_class != XMC_TC0
6198 && tc->symbol_class != XMC_TC
6199 && symseg != bss_section
6200 /* Don't adjust if this is a reloc in the toc section. */
6201 && (symseg != data_section
6202 || ppc_toc_csect == NULL
6203 || val < ppc_toc_frag->fr_address
6204 || (ppc_after_toc_frag != NULL
6205 && val >= ppc_after_toc_frag->fr_address)))
6207 symbolS *csect = tc->within;
6209 /* If the symbol was not declared by a label (eg: a section symbol),
6210 use the section instead of the csect. This doesn't happen in
6211 normal AIX assembly code. */
6213 csect = seg_info (symseg)->sym;
6215 fix->fx_offset += val - symbol_get_frag (csect)->fr_address;
6216 fix->fx_addsy = csect;
6221 /* Adjust a reloc against a .lcomm symbol to be against the base
6223 if (symseg == bss_section
6224 && ! S_IS_EXTERNAL (fix->fx_addsy))
6226 symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
6228 fix->fx_offset += val - resolve_symbol_value (sy);
6235 /* A reloc from one csect to another must be kept. The assembler
6236 will, of course, keep relocs between sections, and it will keep
6237 absolute relocs, but we need to force it to keep PC relative relocs
6238 between two csects in the same section. */
6241 ppc_force_relocation (fixS *fix)
6243 /* At this point fix->fx_addsy should already have been converted to
6244 a csect symbol. If the csect does not include the fragment, then
6245 we need to force the relocation. */
6247 && fix->fx_addsy != NULL
6248 && symbol_get_tc (fix->fx_addsy)->subseg != 0
6249 && ((symbol_get_frag (fix->fx_addsy)->fr_address
6250 > fix->fx_frag->fr_address)
6251 || (symbol_get_tc (fix->fx_addsy)->next != NULL
6252 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
6253 <= fix->fx_frag->fr_address))))
6256 return generic_force_reloc (fix);
6260 ppc_new_dot_label (symbolS *sym)
6262 /* Anchor this label to the current csect for relocations. */
6263 symbol_get_tc (sym)->within = ppc_current_csect;
6266 #endif /* OBJ_XCOFF */
6269 /* If this function returns non-zero, it guarantees that a relocation
6270 will be emitted for a fixup. */
6273 ppc_force_relocation (fixS *fix)
6275 /* Branch prediction relocations must force a relocation, as must
6276 the vtable description relocs. */
6277 switch (fix->fx_r_type)
6279 case BFD_RELOC_PPC_B16_BRTAKEN:
6280 case BFD_RELOC_PPC_B16_BRNTAKEN:
6281 case BFD_RELOC_PPC_BA16_BRTAKEN:
6282 case BFD_RELOC_PPC_BA16_BRNTAKEN:
6283 case BFD_RELOC_24_PLT_PCREL:
6284 case BFD_RELOC_PPC64_TOC:
6286 case BFD_RELOC_PPC_B26:
6287 case BFD_RELOC_PPC_BA26:
6288 case BFD_RELOC_PPC_B16:
6289 case BFD_RELOC_PPC_BA16:
6290 /* All branch fixups targeting a localentry symbol must
6291 force a relocation. */
6294 asymbol *bfdsym = symbol_get_bfdsym (fix->fx_addsy);
6295 elf_symbol_type *elfsym
6296 = elf_symbol_from (bfd_asymbol_bfd (bfdsym), bfdsym);
6297 gas_assert (elfsym);
6298 if ((STO_PPC64_LOCAL_MASK & elfsym->internal_elf_sym.st_other) != 0)
6306 if (fix->fx_r_type >= BFD_RELOC_PPC_TLS
6307 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)
6310 return generic_force_reloc (fix);
6314 ppc_fix_adjustable (fixS *fix)
6316 switch (fix->fx_r_type)
6318 /* All branch fixups targeting a localentry symbol must
6319 continue using the symbol. */
6320 case BFD_RELOC_PPC_B26:
6321 case BFD_RELOC_PPC_BA26:
6322 case BFD_RELOC_PPC_B16:
6323 case BFD_RELOC_PPC_BA16:
6324 case BFD_RELOC_PPC_B16_BRTAKEN:
6325 case BFD_RELOC_PPC_B16_BRNTAKEN:
6326 case BFD_RELOC_PPC_BA16_BRTAKEN:
6327 case BFD_RELOC_PPC_BA16_BRNTAKEN:
6330 asymbol *bfdsym = symbol_get_bfdsym (fix->fx_addsy);
6331 elf_symbol_type *elfsym
6332 = elf_symbol_from (bfd_asymbol_bfd (bfdsym), bfdsym);
6333 gas_assert (elfsym);
6334 if ((STO_PPC64_LOCAL_MASK & elfsym->internal_elf_sym.st_other) != 0)
6342 return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
6343 && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
6344 && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
6345 && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
6346 && fix->fx_r_type != BFD_RELOC_PPC64_GOT16_DS
6347 && fix->fx_r_type != BFD_RELOC_PPC64_GOT16_LO_DS
6348 && fix->fx_r_type != BFD_RELOC_GPREL16
6349 && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT
6350 && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY
6351 && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS
6352 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA));
6357 ppc_frag_check (struct frag *fragP)
6359 if (!fragP->has_code)
6362 if (ppc_mach() == bfd_mach_ppc_vle)
6364 if (((fragP->fr_address + fragP->insn_addr) & 1) != 0)
6365 as_bad (_("instruction address is not a multiple of 2"));
6369 if (((fragP->fr_address + fragP->insn_addr) & 3) != 0)
6370 as_bad (_("instruction address is not a multiple of 4"));
6374 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
6375 rs_align_code frag. */
6378 ppc_handle_align (struct frag *fragP)
6380 valueT count = (fragP->fr_next->fr_address
6381 - (fragP->fr_address + fragP->fr_fix));
6383 if (ppc_mach() == bfd_mach_ppc_vle && count != 0 && (count & 1) == 0)
6385 char *dest = fragP->fr_literal + fragP->fr_fix;
6388 md_number_to_chars (dest, 0x4400, 2);
6390 else if (count != 0 && (count & 3) == 0)
6392 char *dest = fragP->fr_literal + fragP->fr_fix;
6396 if (count > 4 * nop_limit && count < 0x2000000)
6400 /* Make a branch, then follow with nops. Insert another
6401 frag to handle the nops. */
6402 md_number_to_chars (dest, 0x48000000 + count, 4);
6407 rest = xmalloc (SIZEOF_STRUCT_FRAG + 4);
6408 memcpy (rest, fragP, SIZEOF_STRUCT_FRAG);
6409 fragP->fr_next = rest;
6411 rest->fr_address += rest->fr_fix + 4;
6413 /* If we leave the next frag as rs_align_code we'll come here
6414 again, resulting in a bunch of branches rather than a
6415 branch followed by nops. */
6416 rest->fr_type = rs_align;
6417 dest = rest->fr_literal;
6420 md_number_to_chars (dest, 0x60000000, 4);
6422 if ((ppc_cpu & PPC_OPCODE_POWER6) != 0
6423 || (ppc_cpu & PPC_OPCODE_POWER7) != 0
6424 || (ppc_cpu & PPC_OPCODE_POWER8) != 0
6425 || (ppc_cpu & PPC_OPCODE_POWER9) != 0)
6427 /* For power6, power7, power8 and power9, we want the last nop to be
6428 a group terminating one. Do this by inserting an rs_fill frag
6429 immediately after this one, with its address set to the last nop
6430 location. This will automatically reduce the number of nops in
6431 the current frag by one. */
6434 struct frag *group_nop = xmalloc (SIZEOF_STRUCT_FRAG + 4);
6436 memcpy (group_nop, fragP, SIZEOF_STRUCT_FRAG);
6437 group_nop->fr_address = group_nop->fr_next->fr_address - 4;
6438 group_nop->fr_fix = 0;
6439 group_nop->fr_offset = 1;
6440 group_nop->fr_type = rs_fill;
6441 fragP->fr_next = group_nop;
6442 dest = group_nop->fr_literal;
6445 if ((ppc_cpu & PPC_OPCODE_POWER7) != 0
6446 || (ppc_cpu & PPC_OPCODE_POWER8) != 0
6447 || (ppc_cpu & PPC_OPCODE_POWER9) != 0)
6449 if (ppc_cpu & PPC_OPCODE_E500MC)
6450 /* e500mc group terminating nop: "ori 0,0,0". */
6451 md_number_to_chars (dest, 0x60000000, 4);
6453 /* power7/power8/power9 group terminating nop: "ori 2,2,0". */
6454 md_number_to_chars (dest, 0x60420000, 4);
6457 /* power6 group terminating nop: "ori 1,1,0". */
6458 md_number_to_chars (dest, 0x60210000, 4);
6463 /* Apply a fixup to the object code. This is called for all the
6464 fixups we generated by the calls to fix_new_exp, above. */
6467 md_apply_fix (fixS *fixP, valueT *valP, segT seg)
6469 valueT value = * valP;
6471 const struct powerpc_operand *operand;
6474 if (fixP->fx_addsy != NULL)
6476 /* Hack around bfd_install_relocation brain damage. */
6478 value += fixP->fx_frag->fr_address + fixP->fx_where;
6480 if (fixP->fx_addsy == abs_section_sym)
6486 /* FIXME FIXME FIXME: The value we are passed in *valP includes
6487 the symbol values. If we are doing this relocation the code in
6488 write.c is going to call bfd_install_relocation, which is also
6489 going to use the symbol value. That means that if the reloc is
6490 fully resolved we want to use *valP since bfd_install_relocation is
6492 However, if the reloc is not fully resolved we do not want to
6493 use *valP, and must use fx_offset instead. If the relocation
6494 is PC-relative, we then need to re-apply md_pcrel_from_section
6495 to this new relocation value. */
6496 if (fixP->fx_addsy == (symbolS *) NULL)
6501 value = fixP->fx_offset;
6503 value -= md_pcrel_from_section (fixP, seg);
6507 if (fixP->fx_subsy != (symbolS *) NULL)
6509 /* We can't actually support subtracting a symbol. */
6510 as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
6514 if (fixP->fx_pcrel_adjust != 0)
6516 /* This is a fixup on an instruction. */
6517 int opindex = fixP->fx_pcrel_adjust & 0xff;
6519 operand = &powerpc_operands[opindex];
6521 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
6522 does not generate a reloc. It uses the offset of `sym' within its
6523 csect. Other usages, such as `.long sym', generate relocs. This
6524 is the documented behaviour of non-TOC symbols. */
6525 if ((operand->flags & PPC_OPERAND_PARENS) != 0
6526 && (operand->bitm & 0xfff0) == 0xfff0
6527 && operand->shift == 0
6528 && (operand->insert == NULL || ppc_obj64)
6529 && fixP->fx_addsy != NULL
6530 && symbol_get_tc (fixP->fx_addsy)->subseg != 0
6531 && symbol_get_tc (fixP->fx_addsy)->symbol_class != XMC_TC
6532 && symbol_get_tc (fixP->fx_addsy)->symbol_class != XMC_TC0
6533 && S_GET_SEGMENT (fixP->fx_addsy) != bss_section)
6535 value = fixP->fx_offset;
6539 /* During parsing of instructions, a TOC16 reloc is generated for
6540 instructions such as 'lwz RT,SYM(RB)' if SYM is a symbol defined
6541 in the toc. But at parse time, SYM may be not yet defined, so
6542 check again here. */
6543 if (fixP->fx_r_type == BFD_RELOC_16
6544 && fixP->fx_addsy != NULL
6545 && ppc_is_toc_sym (fixP->fx_addsy))
6546 fixP->fx_r_type = BFD_RELOC_PPC_TOC16;
6550 /* Calculate value to be stored in field. */
6552 switch (fixP->fx_r_type)
6555 case BFD_RELOC_PPC64_ADDR16_LO_DS:
6556 case BFD_RELOC_PPC_VLE_LO16A:
6557 case BFD_RELOC_PPC_VLE_LO16D:
6559 case BFD_RELOC_LO16:
6560 case BFD_RELOC_LO16_PCREL:
6561 fieldval = value & 0xffff;
6563 if (operand != NULL && (operand->flags & PPC_OPERAND_SIGNED) != 0)
6564 fieldval = SEX16 (fieldval);
6565 fixP->fx_no_overflow = 1;
6568 case BFD_RELOC_HI16:
6569 case BFD_RELOC_HI16_PCREL:
6571 if (REPORT_OVERFLOW_HI && ppc_obj64)
6573 fieldval = value >> 16;
6574 if (operand != NULL && (operand->flags & PPC_OPERAND_SIGNED) != 0)
6576 valueT sign = (((valueT) -1 >> 16) + 1) >> 1;
6577 fieldval = ((valueT) fieldval ^ sign) - sign;
6583 case BFD_RELOC_PPC_VLE_HI16A:
6584 case BFD_RELOC_PPC_VLE_HI16D:
6585 case BFD_RELOC_PPC64_ADDR16_HIGH:
6587 fieldval = PPC_HI (value);
6588 goto sign_extend_16;
6590 case BFD_RELOC_HI16_S:
6591 case BFD_RELOC_HI16_S_PCREL:
6592 case BFD_RELOC_PPC_REL16DX_HA:
6594 if (REPORT_OVERFLOW_HI && ppc_obj64)
6596 fieldval = (value + 0x8000) >> 16;
6597 if (operand != NULL && (operand->flags & PPC_OPERAND_SIGNED) != 0)
6599 valueT sign = (((valueT) -1 >> 16) + 1) >> 1;
6600 fieldval = ((valueT) fieldval ^ sign) - sign;
6606 case BFD_RELOC_PPC_VLE_HA16A:
6607 case BFD_RELOC_PPC_VLE_HA16D:
6608 case BFD_RELOC_PPC64_ADDR16_HIGHA:
6610 fieldval = PPC_HA (value);
6611 goto sign_extend_16;
6614 case BFD_RELOC_PPC64_HIGHER:
6615 fieldval = PPC_HIGHER (value);
6616 goto sign_extend_16;
6618 case BFD_RELOC_PPC64_HIGHER_S:
6619 fieldval = PPC_HIGHERA (value);
6620 goto sign_extend_16;
6622 case BFD_RELOC_PPC64_HIGHEST:
6623 fieldval = PPC_HIGHEST (value);
6624 goto sign_extend_16;
6626 case BFD_RELOC_PPC64_HIGHEST_S:
6627 fieldval = PPC_HIGHESTA (value);
6628 goto sign_extend_16;
6635 if (operand != NULL)
6637 /* Handle relocs in an insn. */
6638 switch (fixP->fx_r_type)
6641 /* The following relocs can't be calculated by the assembler.
6642 Leave the field zero. */
6643 case BFD_RELOC_PPC_TPREL16:
6644 case BFD_RELOC_PPC_TPREL16_LO:
6645 case BFD_RELOC_PPC_TPREL16_HI:
6646 case BFD_RELOC_PPC_TPREL16_HA:
6647 case BFD_RELOC_PPC_DTPREL16:
6648 case BFD_RELOC_PPC_DTPREL16_LO:
6649 case BFD_RELOC_PPC_DTPREL16_HI:
6650 case BFD_RELOC_PPC_DTPREL16_HA:
6651 case BFD_RELOC_PPC_GOT_TLSGD16:
6652 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
6653 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
6654 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
6655 case BFD_RELOC_PPC_GOT_TLSLD16:
6656 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
6657 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
6658 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
6659 case BFD_RELOC_PPC_GOT_TPREL16:
6660 case BFD_RELOC_PPC_GOT_TPREL16_LO:
6661 case BFD_RELOC_PPC_GOT_TPREL16_HI:
6662 case BFD_RELOC_PPC_GOT_TPREL16_HA:
6663 case BFD_RELOC_PPC_GOT_DTPREL16:
6664 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
6665 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
6666 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
6667 case BFD_RELOC_PPC64_TPREL16_DS:
6668 case BFD_RELOC_PPC64_TPREL16_LO_DS:
6669 case BFD_RELOC_PPC64_TPREL16_HIGH:
6670 case BFD_RELOC_PPC64_TPREL16_HIGHA:
6671 case BFD_RELOC_PPC64_TPREL16_HIGHER:
6672 case BFD_RELOC_PPC64_TPREL16_HIGHERA:
6673 case BFD_RELOC_PPC64_TPREL16_HIGHEST:
6674 case BFD_RELOC_PPC64_TPREL16_HIGHESTA:
6675 case BFD_RELOC_PPC64_DTPREL16_HIGH:
6676 case BFD_RELOC_PPC64_DTPREL16_HIGHA:
6677 case BFD_RELOC_PPC64_DTPREL16_DS:
6678 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
6679 case BFD_RELOC_PPC64_DTPREL16_HIGHER:
6680 case BFD_RELOC_PPC64_DTPREL16_HIGHERA:
6681 case BFD_RELOC_PPC64_DTPREL16_HIGHEST:
6682 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA:
6683 gas_assert (fixP->fx_addsy != NULL);
6684 S_SET_THREAD_LOCAL (fixP->fx_addsy);
6688 /* These also should leave the field zero for the same
6689 reason. Note that older versions of gas wrote values
6690 here. If we want to go back to the old behaviour, then
6691 all _LO and _LO_DS cases will need to be treated like
6692 BFD_RELOC_LO16_PCREL above. Similarly for _HI etc. */
6693 case BFD_RELOC_16_GOTOFF:
6694 case BFD_RELOC_LO16_GOTOFF:
6695 case BFD_RELOC_HI16_GOTOFF:
6696 case BFD_RELOC_HI16_S_GOTOFF:
6697 case BFD_RELOC_LO16_PLTOFF:
6698 case BFD_RELOC_HI16_PLTOFF:
6699 case BFD_RELOC_HI16_S_PLTOFF:
6700 case BFD_RELOC_GPREL16:
6701 case BFD_RELOC_16_BASEREL:
6702 case BFD_RELOC_LO16_BASEREL:
6703 case BFD_RELOC_HI16_BASEREL:
6704 case BFD_RELOC_HI16_S_BASEREL:
6705 case BFD_RELOC_PPC_TOC16:
6706 case BFD_RELOC_PPC64_TOC16_LO:
6707 case BFD_RELOC_PPC64_TOC16_HI:
6708 case BFD_RELOC_PPC64_TOC16_HA:
6709 case BFD_RELOC_PPC64_PLTGOT16:
6710 case BFD_RELOC_PPC64_PLTGOT16_LO:
6711 case BFD_RELOC_PPC64_PLTGOT16_HI:
6712 case BFD_RELOC_PPC64_PLTGOT16_HA:
6713 case BFD_RELOC_PPC64_GOT16_DS:
6714 case BFD_RELOC_PPC64_GOT16_LO_DS:
6715 case BFD_RELOC_PPC64_PLT16_LO_DS:
6716 case BFD_RELOC_PPC64_SECTOFF_DS:
6717 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
6718 case BFD_RELOC_PPC64_TOC16_DS:
6719 case BFD_RELOC_PPC64_TOC16_LO_DS:
6720 case BFD_RELOC_PPC64_PLTGOT16_DS:
6721 case BFD_RELOC_PPC64_PLTGOT16_LO_DS:
6722 case BFD_RELOC_PPC_EMB_NADDR16:
6723 case BFD_RELOC_PPC_EMB_NADDR16_LO:
6724 case BFD_RELOC_PPC_EMB_NADDR16_HI:
6725 case BFD_RELOC_PPC_EMB_NADDR16_HA:
6726 case BFD_RELOC_PPC_EMB_SDAI16:
6727 case BFD_RELOC_PPC_EMB_SDA2I16:
6728 case BFD_RELOC_PPC_EMB_SDA2REL:
6729 case BFD_RELOC_PPC_EMB_SDA21:
6730 case BFD_RELOC_PPC_EMB_MRKREF:
6731 case BFD_RELOC_PPC_EMB_RELSEC16:
6732 case BFD_RELOC_PPC_EMB_RELST_LO:
6733 case BFD_RELOC_PPC_EMB_RELST_HI:
6734 case BFD_RELOC_PPC_EMB_RELST_HA:
6735 case BFD_RELOC_PPC_EMB_BIT_FLD:
6736 case BFD_RELOC_PPC_EMB_RELSDA:
6737 case BFD_RELOC_PPC_VLE_SDA21:
6738 case BFD_RELOC_PPC_VLE_SDA21_LO:
6739 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
6740 case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
6741 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
6742 case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
6743 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
6744 case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
6745 gas_assert (fixP->fx_addsy != NULL);
6748 case BFD_RELOC_PPC_TLS:
6749 case BFD_RELOC_PPC_TLSGD:
6750 case BFD_RELOC_PPC_TLSLD:
6756 case BFD_RELOC_PPC_B16:
6757 /* Adjust the offset to the instruction boundary. */
6762 case BFD_RELOC_VTABLE_INHERIT:
6763 case BFD_RELOC_VTABLE_ENTRY:
6764 case BFD_RELOC_PPC_DTPMOD:
6765 case BFD_RELOC_PPC_TPREL:
6766 case BFD_RELOC_PPC_DTPREL:
6767 case BFD_RELOC_PPC_COPY:
6768 case BFD_RELOC_PPC_GLOB_DAT:
6769 case BFD_RELOC_32_PLT_PCREL:
6770 case BFD_RELOC_PPC_EMB_NADDR32:
6771 case BFD_RELOC_PPC64_TOC:
6772 case BFD_RELOC_CTOR:
6774 case BFD_RELOC_32_PCREL:
6777 case BFD_RELOC_64_PCREL:
6778 case BFD_RELOC_PPC64_ADDR64_LOCAL:
6779 as_bad_where (fixP->fx_file, fixP->fx_line,
6780 _("%s unsupported as instruction fixup"),
6781 bfd_get_reloc_code_name (fixP->fx_r_type));
6790 /* powerpc uses RELA style relocs, so if emitting a reloc the field
6791 contents can stay at zero. */
6792 #define APPLY_RELOC fixP->fx_done
6794 #define APPLY_RELOC 1
6796 if ((fieldval != 0 && APPLY_RELOC) || operand->insert != NULL)
6799 unsigned char *where;
6801 /* Fetch the instruction, insert the fully resolved operand
6802 value, and stuff the instruction back again. */
6803 where = (unsigned char *) fixP->fx_frag->fr_literal + fixP->fx_where;
6804 if (target_big_endian)
6806 if (fixP->fx_size == 4)
6807 insn = bfd_getb32 (where);
6809 insn = bfd_getb16 (where);
6813 if (fixP->fx_size == 4)
6814 insn = bfd_getl32 (where);
6816 insn = bfd_getl16 (where);
6818 insn = ppc_insert_operand (insn, operand, fieldval,
6819 fixP->tc_fix_data.ppc_cpu,
6820 fixP->fx_file, fixP->fx_line);
6821 if (target_big_endian)
6823 if (fixP->fx_size == 4)
6824 bfd_putb32 (insn, where);
6826 bfd_putb16 (insn, where);
6830 if (fixP->fx_size == 4)
6831 bfd_putl32 (insn, where);
6833 bfd_putl16 (insn, where);
6838 /* Nothing else to do here. */
6841 gas_assert (fixP->fx_addsy != NULL);
6842 if (fixP->fx_r_type == BFD_RELOC_NONE)
6847 /* Use expr_symbol_where to see if this is an expression
6849 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
6850 as_bad_where (fixP->fx_file, fixP->fx_line,
6851 _("unresolved expression that must be resolved"));
6853 as_bad_where (fixP->fx_file, fixP->fx_line,
6854 _("unsupported relocation against %s"),
6855 S_GET_NAME (fixP->fx_addsy));
6862 /* Handle relocs in data. */
6863 switch (fixP->fx_r_type)
6865 case BFD_RELOC_VTABLE_INHERIT:
6867 && !S_IS_DEFINED (fixP->fx_addsy)
6868 && !S_IS_WEAK (fixP->fx_addsy))
6869 S_SET_WEAK (fixP->fx_addsy);
6872 case BFD_RELOC_VTABLE_ENTRY:
6877 /* These can appear with @l etc. in data. */
6878 case BFD_RELOC_LO16:
6879 case BFD_RELOC_LO16_PCREL:
6880 case BFD_RELOC_HI16:
6881 case BFD_RELOC_HI16_PCREL:
6882 case BFD_RELOC_HI16_S:
6883 case BFD_RELOC_HI16_S_PCREL:
6884 case BFD_RELOC_PPC64_HIGHER:
6885 case BFD_RELOC_PPC64_HIGHER_S:
6886 case BFD_RELOC_PPC64_HIGHEST:
6887 case BFD_RELOC_PPC64_HIGHEST_S:
6888 case BFD_RELOC_PPC64_ADDR16_HIGH:
6889 case BFD_RELOC_PPC64_ADDR16_HIGHA:
6890 case BFD_RELOC_PPC64_ADDR64_LOCAL:
6893 case BFD_RELOC_PPC_DTPMOD:
6894 case BFD_RELOC_PPC_TPREL:
6895 case BFD_RELOC_PPC_DTPREL:
6896 S_SET_THREAD_LOCAL (fixP->fx_addsy);
6899 /* Just punt all of these to the linker. */
6900 case BFD_RELOC_PPC_B16_BRTAKEN:
6901 case BFD_RELOC_PPC_B16_BRNTAKEN:
6902 case BFD_RELOC_16_GOTOFF:
6903 case BFD_RELOC_LO16_GOTOFF:
6904 case BFD_RELOC_HI16_GOTOFF:
6905 case BFD_RELOC_HI16_S_GOTOFF:
6906 case BFD_RELOC_LO16_PLTOFF:
6907 case BFD_RELOC_HI16_PLTOFF:
6908 case BFD_RELOC_HI16_S_PLTOFF:
6909 case BFD_RELOC_PPC_COPY:
6910 case BFD_RELOC_PPC_GLOB_DAT:
6911 case BFD_RELOC_16_BASEREL:
6912 case BFD_RELOC_LO16_BASEREL:
6913 case BFD_RELOC_HI16_BASEREL:
6914 case BFD_RELOC_HI16_S_BASEREL:
6915 case BFD_RELOC_PPC_TLS:
6916 case BFD_RELOC_PPC_DTPREL16_LO:
6917 case BFD_RELOC_PPC_DTPREL16_HI:
6918 case BFD_RELOC_PPC_DTPREL16_HA:
6919 case BFD_RELOC_PPC_TPREL16_LO:
6920 case BFD_RELOC_PPC_TPREL16_HI:
6921 case BFD_RELOC_PPC_TPREL16_HA:
6922 case BFD_RELOC_PPC_GOT_TLSGD16:
6923 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
6924 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
6925 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
6926 case BFD_RELOC_PPC_GOT_TLSLD16:
6927 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
6928 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
6929 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
6930 case BFD_RELOC_PPC_GOT_DTPREL16:
6931 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
6932 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
6933 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
6934 case BFD_RELOC_PPC_GOT_TPREL16:
6935 case BFD_RELOC_PPC_GOT_TPREL16_LO:
6936 case BFD_RELOC_PPC_GOT_TPREL16_HI:
6937 case BFD_RELOC_PPC_GOT_TPREL16_HA:
6938 case BFD_RELOC_24_PLT_PCREL:
6939 case BFD_RELOC_PPC_LOCAL24PC:
6940 case BFD_RELOC_32_PLT_PCREL:
6941 case BFD_RELOC_GPREL16:
6942 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
6943 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
6944 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
6945 case BFD_RELOC_PPC_EMB_NADDR32:
6946 case BFD_RELOC_PPC_EMB_NADDR16:
6947 case BFD_RELOC_PPC_EMB_NADDR16_LO:
6948 case BFD_RELOC_PPC_EMB_NADDR16_HI:
6949 case BFD_RELOC_PPC_EMB_NADDR16_HA:
6950 case BFD_RELOC_PPC_EMB_SDAI16:
6951 case BFD_RELOC_PPC_EMB_SDA2REL:
6952 case BFD_RELOC_PPC_EMB_SDA2I16:
6953 case BFD_RELOC_PPC_EMB_SDA21:
6954 case BFD_RELOC_PPC_VLE_SDA21_LO:
6955 case BFD_RELOC_PPC_EMB_MRKREF:
6956 case BFD_RELOC_PPC_EMB_RELSEC16:
6957 case BFD_RELOC_PPC_EMB_RELST_LO:
6958 case BFD_RELOC_PPC_EMB_RELST_HI:
6959 case BFD_RELOC_PPC_EMB_RELST_HA:
6960 case BFD_RELOC_PPC_EMB_BIT_FLD:
6961 case BFD_RELOC_PPC_EMB_RELSDA:
6962 case BFD_RELOC_PPC64_TOC:
6963 case BFD_RELOC_PPC_TOC16:
6964 case BFD_RELOC_PPC64_TOC16_LO:
6965 case BFD_RELOC_PPC64_TOC16_HI:
6966 case BFD_RELOC_PPC64_TOC16_HA:
6967 case BFD_RELOC_PPC64_DTPREL16_HIGH:
6968 case BFD_RELOC_PPC64_DTPREL16_HIGHA:
6969 case BFD_RELOC_PPC64_DTPREL16_HIGHER:
6970 case BFD_RELOC_PPC64_DTPREL16_HIGHERA:
6971 case BFD_RELOC_PPC64_DTPREL16_HIGHEST:
6972 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA:
6973 case BFD_RELOC_PPC64_TPREL16_HIGH:
6974 case BFD_RELOC_PPC64_TPREL16_HIGHA:
6975 case BFD_RELOC_PPC64_TPREL16_HIGHER:
6976 case BFD_RELOC_PPC64_TPREL16_HIGHERA:
6977 case BFD_RELOC_PPC64_TPREL16_HIGHEST:
6978 case BFD_RELOC_PPC64_TPREL16_HIGHESTA:
6984 case BFD_RELOC_NONE:
6986 case BFD_RELOC_CTOR:
6988 case BFD_RELOC_32_PCREL:
6991 case BFD_RELOC_64_PCREL:
6993 case BFD_RELOC_16_PCREL:
6999 _("Gas failure, reloc value %d\n"), fixP->fx_r_type);
7004 if (fixP->fx_size && APPLY_RELOC)
7005 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
7006 fieldval, fixP->fx_size);
7008 && (seg->flags & SEC_CODE) != 0
7009 && fixP->fx_size == 4
7012 && (fixP->fx_r_type == BFD_RELOC_32
7013 || fixP->fx_r_type == BFD_RELOC_CTOR
7014 || fixP->fx_r_type == BFD_RELOC_32_PCREL))
7015 as_warn_where (fixP->fx_file, fixP->fx_line,
7016 _("data in executable section"));
7019 /* We are only able to convert some relocs to pc-relative. */
7020 if (!fixP->fx_done && fixP->fx_pcrel)
7022 switch (fixP->fx_r_type)
7024 case BFD_RELOC_LO16:
7025 fixP->fx_r_type = BFD_RELOC_LO16_PCREL;
7028 case BFD_RELOC_HI16:
7029 fixP->fx_r_type = BFD_RELOC_HI16_PCREL;
7032 case BFD_RELOC_HI16_S:
7033 fixP->fx_r_type = BFD_RELOC_HI16_S_PCREL;
7037 fixP->fx_r_type = BFD_RELOC_64_PCREL;
7041 fixP->fx_r_type = BFD_RELOC_32_PCREL;
7045 fixP->fx_r_type = BFD_RELOC_16_PCREL;
7048 /* Some of course are already pc-relative. */
7049 case BFD_RELOC_LO16_PCREL:
7050 case BFD_RELOC_HI16_PCREL:
7051 case BFD_RELOC_HI16_S_PCREL:
7052 case BFD_RELOC_PPC_REL16DX_HA:
7053 case BFD_RELOC_64_PCREL:
7054 case BFD_RELOC_32_PCREL:
7055 case BFD_RELOC_16_PCREL:
7056 case BFD_RELOC_PPC_B16:
7057 case BFD_RELOC_PPC_B16_BRTAKEN:
7058 case BFD_RELOC_PPC_B16_BRNTAKEN:
7059 case BFD_RELOC_PPC_B26:
7060 case BFD_RELOC_PPC_LOCAL24PC:
7061 case BFD_RELOC_24_PLT_PCREL:
7062 case BFD_RELOC_32_PLT_PCREL:
7063 case BFD_RELOC_64_PLT_PCREL:
7064 case BFD_RELOC_PPC_VLE_REL8:
7065 case BFD_RELOC_PPC_VLE_REL15:
7066 case BFD_RELOC_PPC_VLE_REL24:
7075 /* Use expr_symbol_where to see if this is an
7076 expression symbol. */
7077 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
7078 as_bad_where (fixP->fx_file, fixP->fx_line,
7079 _("unresolved expression that must"
7082 as_bad_where (fixP->fx_file, fixP->fx_line,
7083 _("cannot emit PC relative %s relocation"
7085 bfd_get_reloc_code_name (fixP->fx_r_type),
7086 S_GET_NAME (fixP->fx_addsy));
7089 as_bad_where (fixP->fx_file, fixP->fx_line,
7090 _("unable to resolve expression"));
7097 ppc_elf_validate_fix (fixP, seg);
7098 fixP->fx_addnumber = value;
7100 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
7101 from the section contents. If we are going to be emitting a reloc
7102 then the section contents are immaterial, so don't warn if they
7103 happen to overflow. Leave such warnings to ld. */
7106 fixP->fx_no_overflow = 1;
7108 /* Arrange to emit .TOC. as a normal symbol if used in anything
7109 but .TOC.@tocbase. */
7111 && fixP->fx_r_type != BFD_RELOC_PPC64_TOC
7112 && fixP->fx_addsy != NULL
7113 && strcmp (S_GET_NAME (fixP->fx_addsy), ".TOC.") == 0)
7114 symbol_get_bfdsym (fixP->fx_addsy)->flags |= BSF_KEEP;
7117 if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
7118 fixP->fx_addnumber = 0;
7122 fixP->fx_addnumber = 0;
7124 /* We want to use the offset within the toc, not the actual VMA
7126 fixP->fx_addnumber =
7127 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy))
7128 - S_GET_VALUE (ppc_toc_csect);
7129 /* Set *valP to avoid errors. */
7136 /* Generate a reloc for a fixup. */
7139 tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
7143 reloc = (arelent *) xmalloc (sizeof (arelent));
7145 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
7146 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
7147 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
7148 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
7149 if (reloc->howto == (reloc_howto_type *) NULL)
7151 as_bad_where (fixp->fx_file, fixp->fx_line,
7152 _("reloc %d not supported by object file format"),
7153 (int) fixp->fx_r_type);
7156 reloc->addend = fixp->fx_addnumber;
7162 ppc_cfi_frame_initial_instructions (void)
7164 cfi_add_CFA_def_cfa (1, 0);
7168 tc_ppc_regname_to_dw2regnum (char *regname)
7170 unsigned int regnum = -1;
7174 static struct { char *name; int dw2regnum; } regnames[] =
7176 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
7177 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
7178 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
7179 { "spe_acc", 111 }, { "spefscr", 112 }
7182 for (i = 0; i < ARRAY_SIZE (regnames); ++i)
7183 if (strcmp (regnames[i].name, regname) == 0)
7184 return regnames[i].dw2regnum;
7186 if (regname[0] == 'r' || regname[0] == 'f' || regname[0] == 'v')
7188 p = regname + 1 + (regname[1] == '.');
7189 regnum = strtoul (p, &q, 10);
7190 if (p == q || *q || regnum >= 32)
7192 if (regname[0] == 'f')
7194 else if (regname[0] == 'v')
7197 else if (regname[0] == 'c' && regname[1] == 'r')
7199 p = regname + 2 + (regname[2] == '.');
7200 if (p[0] < '0' || p[0] > '7' || p[1])
7202 regnum = p[0] - '0' + 68;