1 /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000)
2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
3 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
4 Written by Ian Lance Taylor, Cygnus Support.
6 This file is part of GAS, the GNU Assembler.
8 GAS is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3, or (at your option)
13 GAS is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GAS; see the file COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
24 #include "safe-ctype.h"
26 #include "dw2gencfi.h"
27 #include "opcode/ppc.h"
31 #include "dwarf2dbg.h"
38 /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
40 /* Tell the main code what the endianness is. */
41 extern int target_big_endian;
43 /* Whether or not, we've set target_big_endian. */
44 static int set_target_endian = 0;
46 /* Whether to use user friendly register names. */
47 #ifndef TARGET_REG_NAMES_P
49 #define TARGET_REG_NAMES_P TRUE
51 #define TARGET_REG_NAMES_P FALSE
55 /* Macros for calculating LO, HI, HA, HIGHER, HIGHERA, HIGHEST,
58 /* #lo(value) denotes the least significant 16 bits of the indicated. */
59 #define PPC_LO(v) ((v) & 0xffff)
61 /* #hi(value) denotes bits 16 through 31 of the indicated value. */
62 #define PPC_HI(v) (((v) >> 16) & 0xffff)
64 /* #ha(value) denotes the high adjusted value: bits 16 through 31 of
65 the indicated value, compensating for #lo() being treated as a
67 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
69 /* #higher(value) denotes bits 32 through 47 of the indicated value. */
70 #define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff)
72 /* #highera(value) denotes bits 32 through 47 of the indicated value,
73 compensating for #lo() being treated as a signed number. */
74 #define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000)
76 /* #highest(value) denotes bits 48 through 63 of the indicated value. */
77 #define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff)
79 /* #highesta(value) denotes bits 48 through 63 of the indicated value,
80 compensating for #lo being treated as a signed number. */
81 #define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000)
83 #define SEX16(val) ((((val) & 0xffff) ^ 0x8000) - 0x8000)
85 static bfd_boolean reg_names_p = TARGET_REG_NAMES_P;
87 static void ppc_macro (char *, const struct powerpc_macro *);
88 static void ppc_byte (int);
90 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
91 static void ppc_tc (int);
92 static void ppc_machine (int);
96 static void ppc_comm (int);
97 static void ppc_bb (int);
98 static void ppc_bc (int);
99 static void ppc_bf (int);
100 static void ppc_biei (int);
101 static void ppc_bs (int);
102 static void ppc_eb (int);
103 static void ppc_ec (int);
104 static void ppc_ef (int);
105 static void ppc_es (int);
106 static void ppc_csect (int);
107 static void ppc_change_csect (symbolS *, offsetT);
108 static void ppc_function (int);
109 static void ppc_extern (int);
110 static void ppc_lglobl (int);
111 static void ppc_ref (int);
112 static void ppc_section (int);
113 static void ppc_named_section (int);
114 static void ppc_stabx (int);
115 static void ppc_rename (int);
116 static void ppc_toc (int);
117 static void ppc_xcoff_cons (int);
118 static void ppc_vbyte (int);
122 static void ppc_elf_cons (int);
123 static void ppc_elf_rdata (int);
124 static void ppc_elf_lcomm (int);
128 static void ppc_previous (int);
129 static void ppc_pdata (int);
130 static void ppc_ydata (int);
131 static void ppc_reldata (int);
132 static void ppc_rdata (int);
133 static void ppc_ualong (int);
134 static void ppc_znop (int);
135 static void ppc_pe_comm (int);
136 static void ppc_pe_section (int);
137 static void ppc_pe_function (int);
138 static void ppc_pe_tocd (int);
141 /* Generic assembler global variables which must be defined by all
145 /* This string holds the chars that always start a comment. If the
146 pre-processor is disabled, these aren't very useful. The macro
147 tc_comment_chars points to this. We use this, rather than the
148 usual comment_chars, so that we can switch for Solaris conventions. */
149 static const char ppc_solaris_comment_chars[] = "#!";
150 static const char ppc_eabi_comment_chars[] = "#";
152 #ifdef TARGET_SOLARIS_COMMENT
153 const char *ppc_comment_chars = ppc_solaris_comment_chars;
155 const char *ppc_comment_chars = ppc_eabi_comment_chars;
158 const char comment_chars[] = "#";
161 /* Characters which start a comment at the beginning of a line. */
162 const char line_comment_chars[] = "#";
164 /* Characters which may be used to separate multiple commands on a
166 const char line_separator_chars[] = ";";
168 /* Characters which are used to indicate an exponent in a floating
170 const char EXP_CHARS[] = "eE";
172 /* Characters which mean that a number is a floating point constant,
174 const char FLT_CHARS[] = "dD";
176 /* Anything that can start an operand needs to be mentioned here,
177 to stop the input scrubber eating whitespace. */
178 const char ppc_symbol_chars[] = "%[";
180 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
181 int ppc_cie_data_alignment;
183 /* More than this number of nops in an alignment op gets a branch
185 unsigned long nop_limit = 4;
187 /* The type of processor we are assembling for. This is one or more
188 of the PPC_OPCODE flags defined in opcode/ppc.h. */
189 ppc_cpu_t ppc_cpu = 0;
191 /* Flags set on encountering toc relocs. */
193 has_large_toc_reloc = 1,
194 has_small_toc_reloc = 2
197 /* The target specific pseudo-ops which we support. */
199 const pseudo_typeS md_pseudo_table[] =
201 /* Pseudo-ops which must be overridden. */
202 { "byte", ppc_byte, 0 },
205 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
206 legitimately belong in the obj-*.c file. However, XCOFF is based
207 on COFF, and is only implemented for the RS/6000. We just use
208 obj-coff.c, and add what we need here. */
209 { "comm", ppc_comm, 0 },
210 { "lcomm", ppc_comm, 1 },
214 { "bi", ppc_biei, 0 },
216 { "csect", ppc_csect, 0 },
217 { "data", ppc_section, 'd' },
221 { "ei", ppc_biei, 1 },
223 { "extern", ppc_extern, 0 },
224 { "function", ppc_function, 0 },
225 { "lglobl", ppc_lglobl, 0 },
226 { "ref", ppc_ref, 0 },
227 { "rename", ppc_rename, 0 },
228 { "section", ppc_named_section, 0 },
229 { "stabx", ppc_stabx, 0 },
230 { "text", ppc_section, 't' },
231 { "toc", ppc_toc, 0 },
232 { "long", ppc_xcoff_cons, 2 },
233 { "llong", ppc_xcoff_cons, 3 },
234 { "word", ppc_xcoff_cons, 1 },
235 { "short", ppc_xcoff_cons, 1 },
236 { "vbyte", ppc_vbyte, 0 },
240 { "llong", ppc_elf_cons, 8 },
241 { "quad", ppc_elf_cons, 8 },
242 { "long", ppc_elf_cons, 4 },
243 { "word", ppc_elf_cons, 2 },
244 { "short", ppc_elf_cons, 2 },
245 { "rdata", ppc_elf_rdata, 0 },
246 { "rodata", ppc_elf_rdata, 0 },
247 { "lcomm", ppc_elf_lcomm, 0 },
251 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
252 { "previous", ppc_previous, 0 },
253 { "pdata", ppc_pdata, 0 },
254 { "ydata", ppc_ydata, 0 },
255 { "reldata", ppc_reldata, 0 },
256 { "rdata", ppc_rdata, 0 },
257 { "ualong", ppc_ualong, 0 },
258 { "znop", ppc_znop, 0 },
259 { "comm", ppc_pe_comm, 0 },
260 { "lcomm", ppc_pe_comm, 1 },
261 { "section", ppc_pe_section, 0 },
262 { "function", ppc_pe_function,0 },
263 { "tocd", ppc_pe_tocd, 0 },
266 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
268 { "machine", ppc_machine, 0 },
275 /* Predefined register names if -mregnames (or default for Windows NT).
276 In general, there are lots of them, in an attempt to be compatible
277 with a number of other Windows NT assemblers. */
279 /* Structure to hold information about predefined registers. */
286 /* List of registers that are pre-defined:
288 Each general register has predefined names of the form:
289 1. r<reg_num> which has the value <reg_num>.
290 2. r.<reg_num> which has the value <reg_num>.
292 Each floating point register has predefined names of the form:
293 1. f<reg_num> which has the value <reg_num>.
294 2. f.<reg_num> which has the value <reg_num>.
296 Each vector unit register has predefined names of the form:
297 1. v<reg_num> which has the value <reg_num>.
298 2. v.<reg_num> which has the value <reg_num>.
300 Each condition register has predefined names of the form:
301 1. cr<reg_num> which has the value <reg_num>.
302 2. cr.<reg_num> which has the value <reg_num>.
304 There are individual registers as well:
305 sp or r.sp has the value 1
306 rtoc or r.toc has the value 2
307 fpscr has the value 0
313 dsisr has the value 18
315 sdr1 has the value 25
316 srr0 has the value 26
317 srr1 has the value 27
319 The table is sorted. Suitable for searching by a binary search. */
321 static const struct pd_reg pre_defined_registers[] =
323 { "cr.0", 0 }, /* Condition Registers */
343 { "dar", 19 }, /* Data Access Register */
344 { "dec", 22 }, /* Decrementer */
345 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
347 { "f.0", 0 }, /* Floating point registers */
374 { "f.32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
440 { "f32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
481 /* Quantization registers used with pair single instructions. */
499 { "lr", 8 }, /* Link Register */
503 { "r.0", 0 }, /* General Purpose Registers */
536 { "r.sp", 1 }, /* Stack Pointer */
538 { "r.toc", 2 }, /* Pointer to the table of contents */
540 { "r0", 0 }, /* More general purpose registers */
573 { "rtoc", 2 }, /* Table of contents */
575 { "sdr1", 25 }, /* Storage Description Register 1 */
579 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
580 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
582 { "v.0", 0 }, /* Vector (Altivec/VMX) registers */
648 { "vs.0", 0 }, /* Vector Scalar (VSX) registers (ISA 2.06). */
782 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
784 /* Given NAME, find the register number associated with that name, return
785 the integer value associated with the given name or -1 on failure. */
788 reg_name_search (const struct pd_reg *regs, int regcount, const char *name)
790 int middle, low, high;
798 middle = (low + high) / 2;
799 cmp = strcasecmp (name, regs[middle].name);
805 return regs[middle].value;
813 * Summary of register_name.
815 * in: Input_line_pointer points to 1st char of operand.
817 * out: A expressionS.
818 * The operand may have been a register: in this case, X_op == O_register,
819 * X_add_number is set to the register number, and truth is returned.
820 * Input_line_pointer->(next non-blank) char after operand, or is in its
825 register_name (expressionS *expressionP)
832 /* Find the spelling of the operand. */
833 start = name = input_line_pointer;
834 if (name[0] == '%' && ISALPHA (name[1]))
835 name = ++input_line_pointer;
837 else if (!reg_names_p || !ISALPHA (name[0]))
840 c = get_symbol_end ();
841 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
843 /* Put back the delimiting char. */
844 *input_line_pointer = c;
846 /* Look to see if it's in the register table. */
849 expressionP->X_op = O_register;
850 expressionP->X_add_number = reg_number;
852 /* Make the rest nice. */
853 expressionP->X_add_symbol = NULL;
854 expressionP->X_op_symbol = NULL;
858 /* Reset the line as if we had not done anything. */
859 input_line_pointer = start;
863 /* This function is called for each symbol seen in an expression. It
864 handles the special parsing which PowerPC assemblers are supposed
865 to use for condition codes. */
867 /* Whether to do the special parsing. */
868 static bfd_boolean cr_operand;
870 /* Names to recognize in a condition code. This table is sorted. */
871 static const struct pd_reg cr_names[] =
888 /* Parsing function. This returns non-zero if it recognized an
892 ppc_parse_name (const char *name, expressionS *exp)
901 val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0],
906 exp->X_op = O_constant;
907 exp->X_add_number = val;
912 /* Local variables. */
914 /* Whether to target xcoff64/elf64. */
915 static unsigned int ppc_obj64 = BFD_DEFAULT_TARGET_SIZE == 64;
917 /* Opcode hash table. */
918 static struct hash_control *ppc_hash;
920 /* Macro hash table. */
921 static struct hash_control *ppc_macro_hash;
924 /* What type of shared library support to use. */
925 static enum { SHLIB_NONE, SHLIB_PIC, SHLIB_MRELOCATABLE } shlib = SHLIB_NONE;
927 /* Flags to set in the elf header. */
928 static flagword ppc_flags = 0;
930 /* Whether this is Solaris or not. */
931 #ifdef TARGET_SOLARIS_COMMENT
932 #define SOLARIS_P TRUE
934 #define SOLARIS_P FALSE
937 static bfd_boolean msolaris = SOLARIS_P;
942 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
943 using a bunch of different sections. These assembler sections,
944 however, are all encompassed within the .text or .data sections of
945 the final output file. We handle this by using different
946 subsegments within these main segments. */
948 /* Next subsegment to allocate within the .text segment. */
949 static subsegT ppc_text_subsegment = 2;
951 /* Linked list of csects in the text section. */
952 static symbolS *ppc_text_csects;
954 /* Next subsegment to allocate within the .data segment. */
955 static subsegT ppc_data_subsegment = 2;
957 /* Linked list of csects in the data section. */
958 static symbolS *ppc_data_csects;
960 /* The current csect. */
961 static symbolS *ppc_current_csect;
963 /* The RS/6000 assembler uses a TOC which holds addresses of functions
964 and variables. Symbols are put in the TOC with the .tc pseudo-op.
965 A special relocation is used when accessing TOC entries. We handle
966 the TOC as a subsegment within the .data segment. We set it up if
967 we see a .toc pseudo-op, and save the csect symbol here. */
968 static symbolS *ppc_toc_csect;
970 /* The first frag in the TOC subsegment. */
971 static fragS *ppc_toc_frag;
973 /* The first frag in the first subsegment after the TOC in the .data
974 segment. NULL if there are no subsegments after the TOC. */
975 static fragS *ppc_after_toc_frag;
977 /* The current static block. */
978 static symbolS *ppc_current_block;
980 /* The COFF debugging section; set by md_begin. This is not the
981 .debug section, but is instead the secret BFD section which will
982 cause BFD to set the section number of a symbol to N_DEBUG. */
983 static asection *ppc_coff_debug_section;
985 #endif /* OBJ_XCOFF */
989 /* Various sections that we need for PE coff support. */
990 static segT ydata_section;
991 static segT pdata_section;
992 static segT reldata_section;
993 static segT rdata_section;
994 static segT tocdata_section;
996 /* The current section and the previous section. See ppc_previous. */
997 static segT ppc_previous_section;
998 static segT ppc_current_section;
1003 symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
1004 #define PPC_APUINFO_ISEL 0x40
1005 #define PPC_APUINFO_PMR 0x41
1006 #define PPC_APUINFO_RFMCI 0x42
1007 #define PPC_APUINFO_CACHELCK 0x43
1008 #define PPC_APUINFO_SPE 0x100
1009 #define PPC_APUINFO_EFS 0x101
1010 #define PPC_APUINFO_BRLOCK 0x102
1013 * We keep a list of APUinfo
1015 unsigned long *ppc_apuinfo_list;
1016 unsigned int ppc_apuinfo_num;
1017 unsigned int ppc_apuinfo_num_alloc;
1018 #endif /* OBJ_ELF */
1021 const char *const md_shortopts = "b:l:usm:K:VQ:";
1023 const char *const md_shortopts = "um:";
1025 #define OPTION_NOPS (OPTION_MD_BASE + 0)
1026 const struct option md_longopts[] = {
1027 {"nops", required_argument, NULL, OPTION_NOPS},
1028 {NULL, no_argument, NULL, 0}
1030 const size_t md_longopts_size = sizeof (md_longopts);
1033 md_parse_option (int c, char *arg)
1040 /* -u means that any undefined symbols should be treated as
1041 external, which is the default for gas anyhow. */
1046 /* Solaris as takes -le (presumably for little endian). For completeness
1047 sake, recognize -be also. */
1048 if (strcmp (arg, "e") == 0)
1050 target_big_endian = 0;
1051 set_target_endian = 1;
1059 if (strcmp (arg, "e") == 0)
1061 target_big_endian = 1;
1062 set_target_endian = 1;
1070 /* Recognize -K PIC. */
1071 if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
1074 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1082 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
1084 if (strcmp (arg, "64") == 0)
1089 as_fatal (_("%s unsupported"), "-a64");
1092 else if (strcmp (arg, "32") == 0)
1099 if ((new_cpu = ppc_parse_cpu (ppc_cpu, arg)) != 0)
1102 else if (strcmp (arg, "regnames") == 0)
1105 else if (strcmp (arg, "no-regnames") == 0)
1106 reg_names_p = FALSE;
1109 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1110 that require relocation. */
1111 else if (strcmp (arg, "relocatable") == 0)
1113 shlib = SHLIB_MRELOCATABLE;
1114 ppc_flags |= EF_PPC_RELOCATABLE;
1117 else if (strcmp (arg, "relocatable-lib") == 0)
1119 shlib = SHLIB_MRELOCATABLE;
1120 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1123 /* -memb, set embedded bit. */
1124 else if (strcmp (arg, "emb") == 0)
1125 ppc_flags |= EF_PPC_EMB;
1127 /* -mlittle/-mbig set the endianess. */
1128 else if (strcmp (arg, "little") == 0
1129 || strcmp (arg, "little-endian") == 0)
1131 target_big_endian = 0;
1132 set_target_endian = 1;
1135 else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0)
1137 target_big_endian = 1;
1138 set_target_endian = 1;
1141 else if (strcmp (arg, "solaris") == 0)
1144 ppc_comment_chars = ppc_solaris_comment_chars;
1147 else if (strcmp (arg, "no-solaris") == 0)
1150 ppc_comment_chars = ppc_eabi_comment_chars;
1155 as_bad (_("invalid switch -m%s"), arg);
1161 /* -V: SVR4 argument to print version ID. */
1163 print_version_id ();
1166 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1167 should be emitted or not. FIXME: Not implemented. */
1171 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1172 rather than .stabs.excl, which is ignored by the linker.
1173 FIXME: Not implemented. */
1184 nop_limit = strtoul (optarg, &end, 0);
1186 as_bad (_("--nops needs a numeric argument"));
1198 md_show_usage (FILE *stream)
1200 fprintf (stream, _("\
1202 -a32 generate ELF32/XCOFF32\n\
1203 -a64 generate ELF64/XCOFF64\n\
1205 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1206 -mpwr generate code for POWER (RIOS1)\n\
1207 -m601 generate code for PowerPC 601\n\
1208 -mppc, -mppc32, -m603, -m604\n\
1209 generate code for PowerPC 603/604\n\
1210 -m403 generate code for PowerPC 403\n\
1211 -m405 generate code for PowerPC 405\n\
1212 -m440 generate code for PowerPC 440\n\
1213 -m464 generate code for PowerPC 464\n\
1214 -m476 generate code for PowerPC 476\n\
1215 -m7400, -m7410, -m7450, -m7455\n\
1216 generate code for PowerPC 7400/7410/7450/7455\n\
1217 -m750cl generate code for PowerPC 750cl\n"));
1218 fprintf (stream, _("\
1219 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1220 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1221 -mbooke generate code for 32-bit PowerPC BookE\n\
1222 -ma2 generate code for A2 architecture\n\
1223 -mpower4, -mpwr4 generate code for Power4 architecture\n\
1224 -mpower5, -mpwr5, -mpwr5x\n\
1225 generate code for Power5 architecture\n\
1226 -mpower6, -mpwr6 generate code for Power6 architecture\n\
1227 -mpower7, -mpwr7 generate code for Power7 architecture\n\
1228 -mcell generate code for Cell Broadband Engine architecture\n\
1229 -mcom generate code Power/PowerPC common instructions\n\
1230 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1231 fprintf (stream, _("\
1232 -maltivec generate code for AltiVec\n\
1233 -mvsx generate code for Vector-Scalar (VSX) instructions\n\
1234 -me300 generate code for PowerPC e300 family\n\
1235 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1236 -me500mc, generate code for Freescale e500mc core complex\n\
1237 -me500mc64, generate code for Freescale e500mc64 core complex\n\
1238 -mspe generate code for Motorola SPE instructions\n\
1239 -mtitan generate code for AppliedMicro Titan core complex\n\
1240 -mregnames Allow symbolic names for registers\n\
1241 -mno-regnames Do not allow symbolic names for registers\n"));
1243 fprintf (stream, _("\
1244 -mrelocatable support for GCC's -mrelocatble option\n\
1245 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1246 -memb set PPC_EMB bit in ELF flags\n\
1247 -mlittle, -mlittle-endian, -l, -le\n\
1248 generate code for a little endian machine\n\
1249 -mbig, -mbig-endian, -b, -be\n\
1250 generate code for a big endian machine\n\
1251 -msolaris generate code for Solaris\n\
1252 -mno-solaris do not generate code for Solaris\n\
1253 -V print assembler version number\n\
1254 -Qy, -Qn ignored\n"));
1256 fprintf (stream, _("\
1257 -nops=count when aligning, more than COUNT nops uses a branch\n"));
1260 /* Set ppc_cpu if it is not already set. */
1265 const char *default_os = TARGET_OS;
1266 const char *default_cpu = TARGET_CPU;
1268 if ((ppc_cpu & ~(ppc_cpu_t) PPC_OPCODE_ANY) == 0)
1271 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_64;
1272 else if (strncmp (default_os, "aix", 3) == 0
1273 && default_os[3] >= '4' && default_os[3] <= '9')
1274 ppc_cpu |= PPC_OPCODE_COMMON;
1275 else if (strncmp (default_os, "aix3", 4) == 0)
1276 ppc_cpu |= PPC_OPCODE_POWER;
1277 else if (strcmp (default_cpu, "rs6000") == 0)
1278 ppc_cpu |= PPC_OPCODE_POWER;
1279 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1280 ppc_cpu |= PPC_OPCODE_PPC;
1282 as_fatal (_("Unknown default cpu = %s, os = %s"),
1283 default_cpu, default_os);
1287 /* Figure out the BFD architecture to use. This function and ppc_mach
1288 are called well before md_begin, when the output file is opened. */
1290 enum bfd_architecture
1293 const char *default_cpu = TARGET_CPU;
1296 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1297 return bfd_arch_powerpc;
1298 else if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1299 return bfd_arch_rs6000;
1300 else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1302 if (strcmp (default_cpu, "rs6000") == 0)
1303 return bfd_arch_rs6000;
1304 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1305 return bfd_arch_powerpc;
1308 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1309 return bfd_arch_unknown;
1316 return bfd_mach_ppc64;
1317 else if (ppc_arch () == bfd_arch_rs6000)
1318 return bfd_mach_rs6k;
1319 else if (ppc_cpu & PPC_OPCODE_TITAN)
1320 return bfd_mach_ppc_titan;
1322 return bfd_mach_ppc;
1326 ppc_target_format (void)
1330 return target_big_endian ? "pe-powerpc" : "pe-powerpcle";
1332 return "xcoff-powermac";
1335 return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000");
1337 return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000");
1343 return "elf32-powerpc-vxworks";
1345 return (target_big_endian
1346 ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc")
1347 : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle"));
1352 /* Insert opcodes and macros into hash tables. Called at startup and
1356 ppc_setup_opcodes (void)
1358 const struct powerpc_opcode *op;
1359 const struct powerpc_opcode *op_end;
1360 const struct powerpc_macro *macro;
1361 const struct powerpc_macro *macro_end;
1362 bfd_boolean bad_insn = FALSE;
1364 if (ppc_hash != NULL)
1365 hash_die (ppc_hash);
1366 if (ppc_macro_hash != NULL)
1367 hash_die (ppc_macro_hash);
1369 /* Insert the opcodes into a hash table. */
1370 ppc_hash = hash_new ();
1372 if (ENABLE_CHECKING)
1376 /* Check operand masks. Code here and in the disassembler assumes
1377 all the 1's in the mask are contiguous. */
1378 for (i = 0; i < num_powerpc_operands; ++i)
1380 unsigned long mask = powerpc_operands[i].bitm;
1381 unsigned long right_bit;
1384 right_bit = mask & -mask;
1386 right_bit = mask & -mask;
1387 if (mask != right_bit)
1389 as_bad (_("powerpc_operands[%d].bitm invalid"), i);
1392 for (j = i + 1; j < num_powerpc_operands; ++j)
1393 if (memcmp (&powerpc_operands[i], &powerpc_operands[j],
1394 sizeof (powerpc_operands[0])) == 0)
1396 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1403 op_end = powerpc_opcodes + powerpc_num_opcodes;
1404 for (op = powerpc_opcodes; op < op_end; op++)
1406 if (ENABLE_CHECKING)
1408 const unsigned char *o;
1409 unsigned long omask = op->mask;
1411 if (op != powerpc_opcodes)
1413 /* The major opcodes had better be sorted. Code in the
1414 disassembler assumes the insns are sorted according to
1416 if (PPC_OP (op[0].opcode) < PPC_OP (op[-1].opcode))
1418 as_bad (_("major opcode is not sorted for %s"),
1423 /* Warn if the table isn't more strictly ordered.
1424 Unfortunately it doesn't seem possible to order the
1425 table on much more than the major opcode, which makes
1426 it difficult to implement a binary search in the
1427 disassembler. The problem is that we have multiple
1428 ways to disassemble instructions, and we usually want
1429 to choose a more specific form (with more bits set in
1430 the opcode) than a more general form. eg. all of the
1431 following are equivalent:
1432 bne label # opcode = 0x40820000, mask = 0xff830003
1433 bf 2,label # opcode = 0x40800000, mask = 0xff800003
1434 bc 4,2,label # opcode = 0x40000000, mask = 0xfc000003
1436 There are also cases where the table needs to be out
1437 of order to disassemble the correct instruction for
1438 processor variants. */
1441 unsigned long t1 = op[0].opcode;
1442 unsigned long t2 = op[-1].opcode;
1444 if (((t1 ^ t2) & 0xfc0007ff) == 0
1445 && (t1 & 0xfc0006df) == 0x7c000286)
1447 /* spr field is split. */
1448 t1 = ((t1 & ~0x1ff800)
1449 | ((t1 & 0xf800) << 5) | ((t1 & 0x1f0000) >> 5));
1450 t2 = ((t2 & ~0x1ff800)
1451 | ((t2 & 0xf800) << 5) | ((t2 & 0x1f0000) >> 5));
1454 as_warn (_("%s (%08lx %08lx) after %s (%08lx %08lx)"),
1455 op[0].name, op[0].opcode, op[0].mask,
1456 op[-1].name, op[-1].opcode, op[-1].mask);
1460 /* The mask had better not trim off opcode bits. */
1461 if ((op->opcode & omask) != op->opcode)
1463 as_bad (_("mask trims opcode bits for %s"),
1468 /* The operands must not overlap the opcode or each other. */
1469 for (o = op->operands; *o; ++o)
1470 if (*o >= num_powerpc_operands)
1472 as_bad (_("operand index error for %s"),
1478 const struct powerpc_operand *operand = &powerpc_operands[*o];
1479 if (operand->shift >= 0)
1481 unsigned long mask = operand->bitm << operand->shift;
1484 as_bad (_("operand %d overlap in %s"),
1485 (int) (o - op->operands), op->name);
1493 if ((ppc_cpu & op->flags) != 0
1494 && !(ppc_cpu & op->deprecated))
1498 retval = hash_insert (ppc_hash, op->name, (void *) op);
1501 as_bad (_("duplicate instruction %s"),
1508 if ((ppc_cpu & PPC_OPCODE_ANY) != 0)
1509 for (op = powerpc_opcodes; op < op_end; op++)
1510 hash_insert (ppc_hash, op->name, (void *) op);
1512 /* Insert the macros into a hash table. */
1513 ppc_macro_hash = hash_new ();
1515 macro_end = powerpc_macros + powerpc_num_macros;
1516 for (macro = powerpc_macros; macro < macro_end; macro++)
1518 if ((macro->flags & ppc_cpu) != 0 || (ppc_cpu & PPC_OPCODE_ANY) != 0)
1522 retval = hash_insert (ppc_macro_hash, macro->name, (void *) macro);
1523 if (retval != (const char *) NULL)
1525 as_bad (_("duplicate macro %s"), macro->name);
1535 /* This function is called when the assembler starts up. It is called
1536 after the options have been parsed and the output file has been
1544 ppc_cie_data_alignment = ppc_obj64 ? -8 : -4;
1547 /* Set the ELF flags if desired. */
1548 if (ppc_flags && !msolaris)
1549 bfd_set_private_flags (stdoutput, ppc_flags);
1552 ppc_setup_opcodes ();
1554 /* Tell the main code what the endianness is if it is not overridden
1556 if (!set_target_endian)
1558 set_target_endian = 1;
1559 target_big_endian = PPC_BIG_ENDIAN;
1563 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1565 /* Create dummy symbols to serve as initial csects. This forces the
1566 text csects to precede the data csects. These symbols will not
1568 ppc_text_csects = symbol_make ("dummy\001");
1569 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
1570 ppc_data_csects = symbol_make ("dummy\001");
1571 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
1576 ppc_current_section = text_section;
1577 ppc_previous_section = 0;
1586 if (ppc_apuinfo_list == NULL)
1589 /* Ok, so write the section info out. We have this layout:
1593 0 8 length of "APUinfo\0"
1594 4 (n*4) number of APU's (4 bytes each)
1597 20 APU#1 first APU's info
1598 24 APU#2 second APU's info
1603 asection *seg = now_seg;
1604 subsegT subseg = now_subseg;
1605 asection *apuinfo_secp = (asection *) NULL;
1608 /* Create the .PPC.EMB.apuinfo section. */
1609 apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0);
1610 bfd_set_section_flags (stdoutput,
1612 SEC_HAS_CONTENTS | SEC_READONLY);
1615 md_number_to_chars (p, (valueT) 8, 4);
1618 md_number_to_chars (p, (valueT) ppc_apuinfo_num * 4, 4);
1621 md_number_to_chars (p, (valueT) 2, 4);
1624 strcpy (p, "APUinfo");
1626 for (i = 0; i < ppc_apuinfo_num; i++)
1629 md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4);
1632 frag_align (2, 0, 0);
1634 /* We probably can't restore the current segment, for there likely
1637 subseg_set (seg, subseg);
1642 /* Insert an operand value into an instruction. */
1644 static unsigned long
1645 ppc_insert_operand (unsigned long insn,
1646 const struct powerpc_operand *operand,
1652 long min, max, right;
1654 max = operand->bitm;
1658 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1660 if ((operand->flags & PPC_OPERAND_SIGNOPT) == 0)
1661 max = (max >> 1) & -right;
1662 min = ~max & -right;
1665 if ((operand->flags & PPC_OPERAND_PLUS1) != 0)
1668 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1677 /* Some people write constants with the sign extension done by
1678 hand but only up to 32 bits. This shouldn't really be valid,
1679 but, to permit this code to assemble on a 64-bit host, we
1680 sign extend the 32-bit value to 64 bits if so doing makes the
1683 && (offsetT) (val - 0x80000000 - 0x80000000) >= min
1684 && (offsetT) (val - 0x80000000 - 0x80000000) <= max
1685 && ((val - 0x80000000 - 0x80000000) & (right - 1)) == 0)
1686 val = val - 0x80000000 - 0x80000000;
1688 /* Similarly, people write expressions like ~(1<<15), and expect
1689 this to be OK for a 32-bit unsigned value. */
1691 && (offsetT) (val + 0x80000000 + 0x80000000) >= min
1692 && (offsetT) (val + 0x80000000 + 0x80000000) <= max
1693 && ((val + 0x80000000 + 0x80000000) & (right - 1)) == 0)
1694 val = val + 0x80000000 + 0x80000000;
1698 || (val & (right - 1)) != 0)
1699 as_bad_value_out_of_range (_("operand"), val, min, max, file, line);
1702 if (operand->insert)
1707 insn = (*operand->insert) (insn, (long) val, cpu, &errmsg);
1708 if (errmsg != (const char *) NULL)
1709 as_bad_where (file, line, "%s", errmsg);
1712 insn |= ((long) val & operand->bitm) << operand->shift;
1719 /* Parse @got, etc. and return the desired relocation. */
1720 static bfd_reloc_code_real_type
1721 ppc_elf_suffix (char **str_p, expressionS *exp_p)
1725 unsigned int length : 8;
1726 unsigned int valid32 : 1;
1727 unsigned int valid64 : 1;
1736 const struct map_bfd *ptr;
1738 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1739 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1740 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1742 static const struct map_bfd mapping[] = {
1743 MAP ("l", BFD_RELOC_LO16),
1744 MAP ("h", BFD_RELOC_HI16),
1745 MAP ("ha", BFD_RELOC_HI16_S),
1746 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN),
1747 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN),
1748 MAP ("got", BFD_RELOC_16_GOTOFF),
1749 MAP ("got@l", BFD_RELOC_LO16_GOTOFF),
1750 MAP ("got@h", BFD_RELOC_HI16_GOTOFF),
1751 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF),
1752 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF),
1753 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF),
1754 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF),
1755 MAP ("copy", BFD_RELOC_PPC_COPY),
1756 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT),
1757 MAP ("sectoff", BFD_RELOC_16_BASEREL),
1758 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL),
1759 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL),
1760 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL),
1761 MAP ("tls", BFD_RELOC_PPC_TLS),
1762 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD),
1763 MAP ("dtprel", BFD_RELOC_PPC_DTPREL),
1764 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO),
1765 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI),
1766 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA),
1767 MAP ("tprel", BFD_RELOC_PPC_TPREL),
1768 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO),
1769 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI),
1770 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA),
1771 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16),
1772 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO),
1773 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI),
1774 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA),
1775 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16),
1776 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO),
1777 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI),
1778 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA),
1779 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16),
1780 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO),
1781 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI),
1782 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA),
1783 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16),
1784 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO),
1785 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI),
1786 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA),
1787 MAP32 ("fixup", BFD_RELOC_CTOR),
1788 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL),
1789 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL),
1790 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC),
1791 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC),
1792 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL),
1793 MAP32 ("sdarel", BFD_RELOC_GPREL16),
1794 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32),
1795 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16),
1796 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO),
1797 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI),
1798 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA),
1799 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16),
1800 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL),
1801 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16),
1802 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21),
1803 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF),
1804 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16),
1805 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO),
1806 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI),
1807 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA),
1808 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD),
1809 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA),
1810 MAP32 ("xgot", BFD_RELOC_PPC_TOC16),
1811 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER),
1812 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S),
1813 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST),
1814 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S),
1815 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC),
1816 MAP64 ("toc", BFD_RELOC_PPC_TOC16),
1817 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO),
1818 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI),
1819 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA),
1820 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER),
1821 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA),
1822 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST),
1823 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA),
1824 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER),
1825 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA),
1826 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST),
1827 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA),
1828 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED }
1832 return BFD_RELOC_UNUSED;
1834 for (ch = *str, str2 = ident;
1835 (str2 < ident + sizeof (ident) - 1
1836 && (ISALNUM (ch) || ch == '@'));
1839 *str2++ = TOLOWER (ch);
1846 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
1847 if (ch == ptr->string[0]
1848 && len == ptr->length
1849 && memcmp (ident, ptr->string, ptr->length) == 0
1850 && (ppc_obj64 ? ptr->valid64 : ptr->valid32))
1852 int reloc = ptr->reloc;
1854 if (!ppc_obj64 && exp_p->X_add_number != 0)
1858 case BFD_RELOC_16_GOTOFF:
1859 case BFD_RELOC_LO16_GOTOFF:
1860 case BFD_RELOC_HI16_GOTOFF:
1861 case BFD_RELOC_HI16_S_GOTOFF:
1862 as_warn (_("identifier+constant@got means "
1863 "identifier@got+constant"));
1866 case BFD_RELOC_PPC_GOT_TLSGD16:
1867 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
1868 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
1869 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
1870 case BFD_RELOC_PPC_GOT_TLSLD16:
1871 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
1872 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
1873 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
1874 case BFD_RELOC_PPC_GOT_DTPREL16:
1875 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
1876 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
1877 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
1878 case BFD_RELOC_PPC_GOT_TPREL16:
1879 case BFD_RELOC_PPC_GOT_TPREL16_LO:
1880 case BFD_RELOC_PPC_GOT_TPREL16_HI:
1881 case BFD_RELOC_PPC_GOT_TPREL16_HA:
1882 as_bad (_("symbol+offset not supported for got tls"));
1887 /* Now check for identifier@suffix+constant. */
1888 if (*str == '-' || *str == '+')
1890 char *orig_line = input_line_pointer;
1891 expressionS new_exp;
1893 input_line_pointer = str;
1894 expression (&new_exp);
1895 if (new_exp.X_op == O_constant)
1897 exp_p->X_add_number += new_exp.X_add_number;
1898 str = input_line_pointer;
1901 if (&input_line_pointer != str_p)
1902 input_line_pointer = orig_line;
1906 if (reloc == (int) BFD_RELOC_PPC64_TOC
1907 && exp_p->X_op == O_symbol
1908 && strcmp (S_GET_NAME (exp_p->X_add_symbol), ".TOC.") == 0)
1910 /* Change the symbol so that the dummy .TOC. symbol can be
1911 omitted from the object file. */
1912 exp_p->X_add_symbol = &abs_symbol;
1915 return (bfd_reloc_code_real_type) reloc;
1918 return BFD_RELOC_UNUSED;
1921 /* Like normal .long/.short/.word, except support @got, etc.
1922 Clobbers input_line_pointer, checks end-of-line. */
1924 ppc_elf_cons (int nbytes /* 1=.byte, 2=.word, 4=.long, 8=.llong */)
1927 bfd_reloc_code_real_type reloc;
1929 if (is_it_end_of_statement ())
1931 demand_empty_rest_of_line ();
1938 if (exp.X_op == O_symbol
1939 && *input_line_pointer == '@'
1940 && (reloc = ppc_elf_suffix (&input_line_pointer,
1941 &exp)) != BFD_RELOC_UNUSED)
1943 reloc_howto_type *reloc_howto;
1946 reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
1947 size = bfd_get_reloc_size (reloc_howto);
1951 as_bad (_("%s relocations do not fit in %d bytes\n"),
1952 reloc_howto->name, nbytes);
1959 p = frag_more (nbytes);
1960 memset (p, 0, nbytes);
1962 if (target_big_endian)
1963 offset = nbytes - size;
1964 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
1969 emit_expr (&exp, (unsigned int) nbytes);
1971 while (*input_line_pointer++ == ',');
1973 /* Put terminator back into stream. */
1974 input_line_pointer--;
1975 demand_empty_rest_of_line ();
1978 /* Solaris pseduo op to change to the .rodata section. */
1980 ppc_elf_rdata (int xxx)
1982 char *save_line = input_line_pointer;
1983 static char section[] = ".rodata\n";
1985 /* Just pretend this is .section .rodata */
1986 input_line_pointer = section;
1987 obj_elf_section (xxx);
1989 input_line_pointer = save_line;
1992 /* Pseudo op to make file scope bss items. */
1994 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED)
2007 name = input_line_pointer;
2008 c = get_symbol_end ();
2010 /* just after name is now '\0'. */
2011 p = input_line_pointer;
2014 if (*input_line_pointer != ',')
2016 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
2017 ignore_rest_of_line ();
2021 input_line_pointer++; /* skip ',' */
2022 if ((size = get_absolute_expression ()) < 0)
2024 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
2025 ignore_rest_of_line ();
2029 /* The third argument to .lcomm is the alignment. */
2030 if (*input_line_pointer != ',')
2034 ++input_line_pointer;
2035 align = get_absolute_expression ();
2038 as_warn (_("ignoring bad alignment"));
2044 symbolP = symbol_find_or_make (name);
2047 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
2049 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
2050 S_GET_NAME (symbolP));
2051 ignore_rest_of_line ();
2055 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
2057 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
2058 S_GET_NAME (symbolP),
2059 (long) S_GET_VALUE (symbolP),
2062 ignore_rest_of_line ();
2068 old_subsec = now_subseg;
2071 /* Convert to a power of 2 alignment. */
2072 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
2075 as_bad (_("Common alignment not a power of 2"));
2076 ignore_rest_of_line ();
2083 record_alignment (bss_section, align2);
2084 subseg_set (bss_section, 0);
2086 frag_align (align2, 0, 0);
2087 if (S_GET_SEGMENT (symbolP) == bss_section)
2088 symbol_get_frag (symbolP)->fr_symbol = 0;
2089 symbol_set_frag (symbolP, frag_now);
2090 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
2093 S_SET_SIZE (symbolP, size);
2094 S_SET_SEGMENT (symbolP, bss_section);
2095 subseg_set (old_sec, old_subsec);
2096 demand_empty_rest_of_line ();
2099 /* Validate any relocations emitted for -mrelocatable, possibly adding
2100 fixups for word relocations in writable segments, so we can adjust
2103 ppc_elf_validate_fix (fixS *fixp, segT seg)
2105 if (fixp->fx_done || fixp->fx_pcrel)
2114 case SHLIB_MRELOCATABLE:
2115 if (fixp->fx_r_type <= BFD_RELOC_UNUSED
2116 && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
2117 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
2118 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
2119 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
2120 && fixp->fx_r_type != BFD_RELOC_16_BASEREL
2121 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
2122 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
2123 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
2124 && (seg->flags & SEC_LOAD) != 0
2125 && strcmp (segment_name (seg), ".got2") != 0
2126 && strcmp (segment_name (seg), ".dtors") != 0
2127 && strcmp (segment_name (seg), ".ctors") != 0
2128 && strcmp (segment_name (seg), ".fixup") != 0
2129 && strcmp (segment_name (seg), ".gcc_except_table") != 0
2130 && strcmp (segment_name (seg), ".eh_frame") != 0
2131 && strcmp (segment_name (seg), ".ex_shared") != 0)
2133 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
2134 || fixp->fx_r_type != BFD_RELOC_CTOR)
2136 as_bad_where (fixp->fx_file, fixp->fx_line,
2137 _("Relocation cannot be done when using -mrelocatable"));
2144 /* Prevent elf_frob_file_before_adjust removing a weak undefined
2145 function descriptor sym if the corresponding code sym is used. */
2148 ppc_frob_file_before_adjust (void)
2156 for (symp = symbol_rootP; symp; symp = symbol_next (symp))
2163 name = S_GET_NAME (symp);
2167 if (! S_IS_WEAK (symp)
2168 || S_IS_DEFINED (symp))
2171 len = strlen (name) + 1;
2172 dotname = xmalloc (len + 1);
2174 memcpy (dotname + 1, name, len);
2175 dotsym = symbol_find_noref (dotname, 1);
2177 if (dotsym != NULL && (symbol_used_p (dotsym)
2178 || symbol_used_in_reloc_p (dotsym)))
2179 symbol_mark_used (symp);
2183 toc = bfd_get_section_by_name (stdoutput, ".toc");
2185 && toc_reloc_types != has_large_toc_reloc
2186 && bfd_section_size (stdoutput, toc) > 0x10000)
2187 as_warn (_("TOC section size exceeds 64k"));
2189 /* Don't emit .TOC. symbol. */
2190 symp = symbol_find (".TOC.");
2192 symbol_remove (symp, &symbol_rootP, &symbol_lastP);
2194 #endif /* OBJ_ELF */
2199 * Summary of parse_toc_entry.
2201 * in: Input_line_pointer points to the '[' in one of:
2203 * [toc] [tocv] [toc32] [toc64]
2205 * Anything else is an error of one kind or another.
2208 * return value: success or failure
2209 * toc_kind: kind of toc reference
2210 * input_line_pointer:
2211 * success: first char after the ']'
2212 * failure: unchanged
2216 * [toc] - rv == success, toc_kind = default_toc
2217 * [tocv] - rv == success, toc_kind = data_in_toc
2218 * [toc32] - rv == success, toc_kind = must_be_32
2219 * [toc64] - rv == success, toc_kind = must_be_64
2223 enum toc_size_qualifier
2225 default_toc, /* The toc cell constructed should be the system default size */
2226 data_in_toc, /* This is a direct reference to a toc cell */
2227 must_be_32, /* The toc cell constructed must be 32 bits wide */
2228 must_be_64 /* The toc cell constructed must be 64 bits wide */
2232 parse_toc_entry (enum toc_size_qualifier *toc_kind)
2237 enum toc_size_qualifier t;
2239 /* Save the input_line_pointer. */
2240 start = input_line_pointer;
2242 /* Skip over the '[' , and whitespace. */
2243 ++input_line_pointer;
2246 /* Find the spelling of the operand. */
2247 toc_spec = input_line_pointer;
2248 c = get_symbol_end ();
2250 if (strcmp (toc_spec, "toc") == 0)
2254 else if (strcmp (toc_spec, "tocv") == 0)
2258 else if (strcmp (toc_spec, "toc32") == 0)
2262 else if (strcmp (toc_spec, "toc64") == 0)
2268 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
2269 *input_line_pointer = c;
2270 input_line_pointer = start;
2274 /* Now find the ']'. */
2275 *input_line_pointer = c;
2277 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2278 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
2282 as_bad (_("syntax error: expected `]', found `%c'"), c);
2283 input_line_pointer = start;
2294 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2296 ppc_apuinfo_section_add (unsigned int apu, unsigned int version)
2300 /* Check we don't already exist. */
2301 for (i = 0; i < ppc_apuinfo_num; i++)
2302 if (ppc_apuinfo_list[i] == APUID (apu, version))
2305 if (ppc_apuinfo_num == ppc_apuinfo_num_alloc)
2307 if (ppc_apuinfo_num_alloc == 0)
2309 ppc_apuinfo_num_alloc = 4;
2310 ppc_apuinfo_list = (unsigned long *)
2311 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2315 ppc_apuinfo_num_alloc += 4;
2316 ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list,
2317 sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2320 ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version);
2326 /* We need to keep a list of fixups. We can't simply generate them as
2327 we go, because that would require us to first create the frag, and
2328 that would screw up references to ``.''. */
2334 bfd_reloc_code_real_type reloc;
2337 #define MAX_INSN_FIXUPS (5)
2339 /* This routine is called for each instruction to be assembled. */
2342 md_assemble (char *str)
2345 const struct powerpc_opcode *opcode;
2347 const unsigned char *opindex_ptr;
2351 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
2357 bfd_reloc_code_real_type reloc;
2360 /* Get the opcode. */
2361 for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
2366 /* Look up the opcode in the hash table. */
2367 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
2368 if (opcode == (const struct powerpc_opcode *) NULL)
2370 const struct powerpc_macro *macro;
2372 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
2373 if (macro == (const struct powerpc_macro *) NULL)
2374 as_bad (_("Unrecognized opcode: `%s'"), str);
2376 ppc_macro (s, macro);
2381 insn = opcode->opcode;
2384 while (ISSPACE (*str))
2387 /* PowerPC operands are just expressions. The only real issue is
2388 that a few operand types are optional. All cases which might use
2389 an optional operand separate the operands only with commas (in some
2390 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2391 have optional operands). Most instructions with optional operands
2392 have only one. Those that have more than one optional operand can
2393 take either all their operands or none. So, before we start seriously
2394 parsing the operands, we check to see if we have optional operands,
2395 and if we do, we count the number of commas to see which operands
2396 have been omitted. */
2398 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2400 const struct powerpc_operand *operand;
2402 operand = &powerpc_operands[*opindex_ptr];
2403 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
2405 unsigned int opcount;
2406 unsigned int num_operands_expected;
2408 /* There is an optional operand. Count the number of
2409 commas in the input line. */
2416 while ((s = strchr (s, ',')) != (char *) NULL)
2423 /* Compute the number of expected operands.
2424 Do not count fake operands. */
2425 for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++)
2426 if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0)
2427 ++ num_operands_expected;
2429 /* If there are fewer operands in the line then are called
2430 for by the instruction, we want to skip the optional
2432 if (opcount < num_operands_expected)
2439 /* Gather the operands. */
2443 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2445 const struct powerpc_operand *operand;
2451 if (next_opindex == 0)
2452 operand = &powerpc_operands[*opindex_ptr];
2455 operand = &powerpc_operands[next_opindex];
2460 /* If this is a fake operand, then we do not expect anything
2462 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
2464 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2465 if (errmsg != (const char *) NULL)
2466 as_bad ("%s", errmsg);
2470 /* If this is an optional operand, and we are skipping it, just
2472 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
2475 if (operand->insert)
2477 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2478 if (errmsg != (const char *) NULL)
2479 as_bad ("%s", errmsg);
2481 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
2482 next_opindex = *opindex_ptr + 1;
2486 /* Gather the operand. */
2487 hold = input_line_pointer;
2488 input_line_pointer = str;
2491 if (*input_line_pointer == '[')
2493 /* We are expecting something like the second argument here:
2495 * lwz r4,[toc].GS.0.static_int(rtoc)
2496 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2497 * The argument following the `]' must be a symbol name, and the
2498 * register must be the toc register: 'rtoc' or '2'
2500 * The effect is to 0 as the displacement field
2501 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2502 * the appropriate variation) reloc against it based on the symbol.
2503 * The linker will build the toc, and insert the resolved toc offset.
2506 * o The size of the toc entry is currently assumed to be
2507 * 32 bits. This should not be assumed to be a hard coded
2509 * o In an effort to cope with a change from 32 to 64 bits,
2510 * there are also toc entries that are specified to be
2511 * either 32 or 64 bits:
2512 * lwz r4,[toc32].GS.0.static_int(rtoc)
2513 * lwz r4,[toc64].GS.0.static_int(rtoc)
2514 * These demand toc entries of the specified size, and the
2515 * instruction probably requires it.
2519 enum toc_size_qualifier toc_kind;
2520 bfd_reloc_code_real_type toc_reloc;
2522 /* Go parse off the [tocXX] part. */
2523 valid_toc = parse_toc_entry (&toc_kind);
2527 /* Note: message has already been issued.
2528 FIXME: what sort of recovery should we do?
2529 demand_rest_of_line (); return; ? */
2532 /* Now get the symbol following the ']'. */
2538 /* In this case, we may not have seen the symbol yet,
2539 since it is allowed to appear on a .extern or .globl
2540 or just be a label in the .data section. */
2541 toc_reloc = BFD_RELOC_PPC_TOC16;
2544 /* 1. The symbol must be defined and either in the toc
2545 section, or a global.
2546 2. The reloc generated must have the TOCDEFN flag set
2547 in upper bit mess of the reloc type.
2548 FIXME: It's a little confusing what the tocv
2549 qualifier can be used for. At the very least, I've
2550 seen three uses, only one of which I'm sure I can
2552 if (ex.X_op == O_symbol)
2554 gas_assert (ex.X_add_symbol != NULL);
2555 if (symbol_get_bfdsym (ex.X_add_symbol)->section
2558 as_bad (_("[tocv] symbol is not a toc symbol"));
2562 toc_reloc = BFD_RELOC_PPC_TOC16;
2565 /* FIXME: these next two specifically specify 32/64 bit
2566 toc entries. We don't support them today. Is this
2567 the right way to say that? */
2568 toc_reloc = BFD_RELOC_UNUSED;
2569 as_bad (_("Unimplemented toc32 expression modifier"));
2572 /* FIXME: see above. */
2573 toc_reloc = BFD_RELOC_UNUSED;
2574 as_bad (_("Unimplemented toc64 expression modifier"));
2578 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2584 /* We need to generate a fixup for this expression. */
2585 if (fc >= MAX_INSN_FIXUPS)
2586 as_fatal (_("too many fixups"));
2588 fixups[fc].reloc = toc_reloc;
2589 fixups[fc].exp = ex;
2590 fixups[fc].opindex = *opindex_ptr;
2593 /* Ok. We've set up the fixup for the instruction. Now make it
2594 look like the constant 0 was found here. */
2596 ex.X_op = O_constant;
2597 ex.X_add_number = 0;
2598 ex.X_add_symbol = NULL;
2599 ex.X_op_symbol = NULL;
2605 if ((reg_names_p && (operand->flags & PPC_OPERAND_CR) != 0)
2606 || !register_name (&ex))
2608 char save_lex = lex_type['%'];
2610 if ((operand->flags & PPC_OPERAND_CR) != 0)
2613 lex_type['%'] |= LEX_BEGIN_NAME;
2617 lex_type['%'] = save_lex;
2621 str = input_line_pointer;
2622 input_line_pointer = hold;
2624 if (ex.X_op == O_illegal)
2625 as_bad (_("illegal operand"));
2626 else if (ex.X_op == O_absent)
2627 as_bad (_("missing operand"));
2628 else if (ex.X_op == O_register)
2630 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2631 ppc_cpu, (char *) NULL, 0);
2633 else if (ex.X_op == O_constant)
2636 /* Allow @HA, @L, @H on constants. */
2637 char *orig_str = str;
2639 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2646 case BFD_RELOC_LO16:
2647 /* X_unsigned is the default, so if the user has done
2648 something which cleared it, we always produce a
2650 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2651 ex.X_add_number &= 0xffff;
2653 ex.X_add_number = SEX16 (ex.X_add_number);
2656 case BFD_RELOC_HI16:
2657 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2658 ex.X_add_number = PPC_HI (ex.X_add_number);
2660 ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number));
2663 case BFD_RELOC_HI16_S:
2664 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2665 ex.X_add_number = PPC_HA (ex.X_add_number);
2667 ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number));
2670 case BFD_RELOC_PPC64_HIGHER:
2671 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2672 ex.X_add_number = PPC_HIGHER (ex.X_add_number);
2674 ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number));
2677 case BFD_RELOC_PPC64_HIGHER_S:
2678 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2679 ex.X_add_number = PPC_HIGHERA (ex.X_add_number);
2681 ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number));
2684 case BFD_RELOC_PPC64_HIGHEST:
2685 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2686 ex.X_add_number = PPC_HIGHEST (ex.X_add_number);
2688 ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number));
2691 case BFD_RELOC_PPC64_HIGHEST_S:
2692 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2693 ex.X_add_number = PPC_HIGHESTA (ex.X_add_number);
2695 ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number));
2698 #endif /* OBJ_ELF */
2699 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2700 ppc_cpu, (char *) NULL, 0);
2705 if (ex.X_op == O_symbol && str[0] == '(')
2707 const char *sym_name = S_GET_NAME (ex.X_add_symbol);
2708 if (sym_name[0] == '.')
2711 if (strcasecmp (sym_name, "__tls_get_addr") == 0)
2713 expressionS tls_exp;
2715 hold = input_line_pointer;
2716 input_line_pointer = str + 1;
2717 expression (&tls_exp);
2718 if (tls_exp.X_op == O_symbol)
2720 reloc = BFD_RELOC_UNUSED;
2721 if (strncasecmp (input_line_pointer, "@tlsgd)", 7) == 0)
2723 reloc = BFD_RELOC_PPC_TLSGD;
2724 input_line_pointer += 7;
2726 else if (strncasecmp (input_line_pointer, "@tlsld)", 7) == 0)
2728 reloc = BFD_RELOC_PPC_TLSLD;
2729 input_line_pointer += 7;
2731 if (reloc != BFD_RELOC_UNUSED)
2734 str = input_line_pointer;
2736 if (fc >= MAX_INSN_FIXUPS)
2737 as_fatal (_("too many fixups"));
2738 fixups[fc].exp = tls_exp;
2739 fixups[fc].opindex = *opindex_ptr;
2740 fixups[fc].reloc = reloc;
2744 input_line_pointer = hold;
2748 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2750 /* Some TLS tweaks. */
2756 case BFD_RELOC_PPC_TLS:
2757 if (!_bfd_elf_ppc_at_tls_transform (opcode->opcode, 0))
2758 as_bad (_("@tls may not be used with \"%s\" operands"),
2760 else if (operand->shift != 11)
2761 as_bad (_("@tls may only be used in last operand"));
2763 insn = ppc_insert_operand (insn, operand,
2765 ppc_cpu, (char *) NULL, 0);
2768 /* We'll only use the 32 (or 64) bit form of these relocations
2769 in constants. Instructions get the 16 bit form. */
2770 case BFD_RELOC_PPC_DTPREL:
2771 reloc = BFD_RELOC_PPC_DTPREL16;
2773 case BFD_RELOC_PPC_TPREL:
2774 reloc = BFD_RELOC_PPC_TPREL16;
2778 /* For the absolute forms of branches, convert the PC
2779 relative form back into the absolute. */
2780 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
2784 case BFD_RELOC_PPC_B26:
2785 reloc = BFD_RELOC_PPC_BA26;
2787 case BFD_RELOC_PPC_B16:
2788 reloc = BFD_RELOC_PPC_BA16;
2790 case BFD_RELOC_PPC_B16_BRTAKEN:
2791 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
2793 case BFD_RELOC_PPC_B16_BRNTAKEN:
2794 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
2803 case BFD_RELOC_PPC_TOC16:
2804 toc_reloc_types |= has_small_toc_reloc;
2806 case BFD_RELOC_PPC64_TOC16_LO:
2807 case BFD_RELOC_PPC64_TOC16_HI:
2808 case BFD_RELOC_PPC64_TOC16_HA:
2809 toc_reloc_types |= has_large_toc_reloc;
2816 && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0)
2821 reloc = BFD_RELOC_PPC64_ADDR16_DS;
2823 case BFD_RELOC_LO16:
2824 reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
2826 case BFD_RELOC_16_GOTOFF:
2827 reloc = BFD_RELOC_PPC64_GOT16_DS;
2829 case BFD_RELOC_LO16_GOTOFF:
2830 reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
2832 case BFD_RELOC_LO16_PLTOFF:
2833 reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
2835 case BFD_RELOC_16_BASEREL:
2836 reloc = BFD_RELOC_PPC64_SECTOFF_DS;
2838 case BFD_RELOC_LO16_BASEREL:
2839 reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
2841 case BFD_RELOC_PPC_TOC16:
2842 reloc = BFD_RELOC_PPC64_TOC16_DS;
2844 case BFD_RELOC_PPC64_TOC16_LO:
2845 reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
2847 case BFD_RELOC_PPC64_PLTGOT16:
2848 reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
2850 case BFD_RELOC_PPC64_PLTGOT16_LO:
2851 reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
2853 case BFD_RELOC_PPC_DTPREL16:
2854 reloc = BFD_RELOC_PPC64_DTPREL16_DS;
2856 case BFD_RELOC_PPC_DTPREL16_LO:
2857 reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS;
2859 case BFD_RELOC_PPC_TPREL16:
2860 reloc = BFD_RELOC_PPC64_TPREL16_DS;
2862 case BFD_RELOC_PPC_TPREL16_LO:
2863 reloc = BFD_RELOC_PPC64_TPREL16_LO_DS;
2865 case BFD_RELOC_PPC_GOT_DTPREL16:
2866 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
2867 case BFD_RELOC_PPC_GOT_TPREL16:
2868 case BFD_RELOC_PPC_GOT_TPREL16_LO:
2871 as_bad (_("unsupported relocation for DS offset field"));
2877 /* We need to generate a fixup for this expression. */
2878 if (fc >= MAX_INSN_FIXUPS)
2879 as_fatal (_("too many fixups"));
2880 fixups[fc].exp = ex;
2881 fixups[fc].opindex = *opindex_ptr;
2882 fixups[fc].reloc = reloc;
2888 /* We need to generate a fixup for this expression. */
2889 if (fc >= MAX_INSN_FIXUPS)
2890 as_fatal (_("too many fixups"));
2891 fixups[fc].exp = ex;
2892 fixups[fc].opindex = *opindex_ptr;
2893 fixups[fc].reloc = BFD_RELOC_UNUSED;
2896 #endif /* OBJ_ELF */
2902 /* If expecting more operands, then we want to see "),". */
2903 if (*str == endc && opindex_ptr[1] != 0)
2907 while (ISSPACE (*str));
2911 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
2919 /* The call to expression should have advanced str past any
2922 && (endc != ',' || *str != '\0'))
2925 as_bad (_("syntax error; end of line, expected `%c'"), endc);
2927 as_bad (_("syntax error; found `%c', expected `%c'"), *str, endc);
2935 while (ISSPACE (*str))
2939 as_bad (_("junk at end of line: `%s'"), str);
2942 /* Do we need/want a APUinfo section? */
2943 if ((ppc_cpu & (PPC_OPCODE_E500 | PPC_OPCODE_E500MC)) != 0)
2945 /* These are all version "1". */
2946 if (opcode->flags & PPC_OPCODE_SPE)
2947 ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1);
2948 if (opcode->flags & PPC_OPCODE_ISEL)
2949 ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1);
2950 if (opcode->flags & PPC_OPCODE_EFS)
2951 ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1);
2952 if (opcode->flags & PPC_OPCODE_BRLOCK)
2953 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1);
2954 if (opcode->flags & PPC_OPCODE_PMR)
2955 ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1);
2956 if (opcode->flags & PPC_OPCODE_CACHELCK)
2957 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1);
2958 if (opcode->flags & PPC_OPCODE_RFMCI)
2959 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1);
2963 /* Write out the instruction. */
2965 addr_mod = frag_now_fix () & 3;
2966 if (frag_now->has_code && frag_now->insn_addr != addr_mod)
2967 as_bad (_("instruction address is not a multiple of 4"));
2968 frag_now->insn_addr = addr_mod;
2969 frag_now->has_code = 1;
2970 md_number_to_chars (f, insn, 4);
2973 dwarf2_emit_insn (4);
2976 /* Create any fixups. At this point we do not use a
2977 bfd_reloc_code_real_type, but instead just use the
2978 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2979 handle fixups for any operand type, although that is admittedly
2980 not a very exciting feature. We pick a BFD reloc type in
2982 for (i = 0; i < fc; i++)
2984 if (fixups[i].reloc != BFD_RELOC_UNUSED)
2986 reloc_howto_type *reloc_howto;
2991 reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
2995 size = bfd_get_reloc_size (reloc_howto);
2996 offset = target_big_endian ? (4 - size) : 0;
2998 if (size < 1 || size > 4)
3001 fixP = fix_new_exp (frag_now,
3002 f - frag_now->fr_literal + offset,
3005 reloc_howto->pc_relative,
3008 /* Turn off complaints that the addend is too large for things like
3010 switch (fixups[i].reloc)
3012 case BFD_RELOC_16_GOTOFF:
3013 case BFD_RELOC_PPC_TOC16:
3014 case BFD_RELOC_LO16:
3015 case BFD_RELOC_HI16:
3016 case BFD_RELOC_HI16_S:
3018 case BFD_RELOC_PPC64_HIGHER:
3019 case BFD_RELOC_PPC64_HIGHER_S:
3020 case BFD_RELOC_PPC64_HIGHEST:
3021 case BFD_RELOC_PPC64_HIGHEST_S:
3023 fixP->fx_no_overflow = 1;
3031 const struct powerpc_operand *operand;
3033 operand = &powerpc_operands[fixups[i].opindex];
3034 fix_new_exp (frag_now,
3035 f - frag_now->fr_literal,
3038 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
3039 ((bfd_reloc_code_real_type)
3040 (fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
3045 /* Handle a macro. Gather all the operands, transform them as
3046 described by the macro, and call md_assemble recursively. All the
3047 operands are separated by commas; we don't accept parentheses
3048 around operands here. */
3051 ppc_macro (char *str, const struct powerpc_macro *macro)
3062 /* Gather the users operands into the operands array. */
3067 if (count >= sizeof operands / sizeof operands[0])
3069 operands[count++] = s;
3070 s = strchr (s, ',');
3071 if (s == (char *) NULL)
3076 if (count != macro->operands)
3078 as_bad (_("wrong number of operands"));
3082 /* Work out how large the string must be (the size is unbounded
3083 because it includes user input). */
3085 format = macro->format;
3086 while (*format != '\0')
3095 arg = strtol (format + 1, &send, 10);
3096 know (send != format && arg < count);
3097 len += strlen (operands[arg]);
3102 /* Put the string together. */
3103 complete = s = (char *) alloca (len + 1);
3104 format = macro->format;
3105 while (*format != '\0')
3111 arg = strtol (format + 1, &send, 10);
3112 strcpy (s, operands[arg]);
3119 /* Assemble the constructed instruction. */
3120 md_assemble (complete);
3124 /* For ELF, add support for SHT_ORDERED. */
3127 ppc_section_type (char *str, size_t len)
3129 if (len == 7 && strncmp (str, "ordered", 7) == 0)
3136 ppc_section_flags (flagword flags, bfd_vma attr ATTRIBUTE_UNUSED, int type)
3138 if (type == SHT_ORDERED)
3139 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
3143 #endif /* OBJ_ELF */
3146 /* Pseudo-op handling. */
3148 /* The .byte pseudo-op. This is similar to the normal .byte
3149 pseudo-op, but it can also take a single ASCII string. */
3152 ppc_byte (int ignore ATTRIBUTE_UNUSED)
3154 if (*input_line_pointer != '\"')
3160 /* Gather characters. A real double quote is doubled. Unusual
3161 characters are not permitted. */
3162 ++input_line_pointer;
3167 c = *input_line_pointer++;
3171 if (*input_line_pointer != '\"')
3173 ++input_line_pointer;
3176 FRAG_APPEND_1_CHAR (c);
3179 demand_empty_rest_of_line ();
3184 /* XCOFF specific pseudo-op handling. */
3186 /* This is set if we are creating a .stabx symbol, since we don't want
3187 to handle symbol suffixes for such symbols. */
3188 static bfd_boolean ppc_stab_symbol;
3190 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
3191 symbols in the .bss segment as though they were local common
3192 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
3193 aligns .comm and .lcomm to 4 bytes. */
3196 ppc_comm (int lcomm)
3198 asection *current_seg = now_seg;
3199 subsegT current_subseg = now_subseg;
3205 symbolS *lcomm_sym = NULL;
3209 name = input_line_pointer;
3210 endc = get_symbol_end ();
3211 end_name = input_line_pointer;
3214 if (*input_line_pointer != ',')
3216 as_bad (_("missing size"));
3217 ignore_rest_of_line ();
3220 ++input_line_pointer;
3222 size = get_absolute_expression ();
3225 as_bad (_("negative size"));
3226 ignore_rest_of_line ();
3232 /* The third argument to .comm is the alignment. */
3233 if (*input_line_pointer != ',')
3237 ++input_line_pointer;
3238 align = get_absolute_expression ();
3241 as_warn (_("ignoring bad alignment"));
3256 /* The third argument to .lcomm appears to be the real local
3257 common symbol to create. References to the symbol named in
3258 the first argument are turned into references to the third
3260 if (*input_line_pointer != ',')
3262 as_bad (_("missing real symbol name"));
3263 ignore_rest_of_line ();
3266 ++input_line_pointer;
3268 lcomm_name = input_line_pointer;
3269 lcomm_endc = get_symbol_end ();
3271 lcomm_sym = symbol_find_or_make (lcomm_name);
3273 *input_line_pointer = lcomm_endc;
3277 sym = symbol_find_or_make (name);
3280 if (S_IS_DEFINED (sym)
3281 || S_GET_VALUE (sym) != 0)
3283 as_bad (_("attempt to redefine symbol"));
3284 ignore_rest_of_line ();
3288 record_alignment (bss_section, align);
3291 || ! S_IS_DEFINED (lcomm_sym))
3300 S_SET_EXTERNAL (sym);
3304 symbol_get_tc (lcomm_sym)->output = 1;
3305 def_sym = lcomm_sym;
3309 subseg_set (bss_section, 1);
3310 frag_align (align, 0, 0);
3312 symbol_set_frag (def_sym, frag_now);
3313 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
3314 def_size, (char *) NULL);
3316 S_SET_SEGMENT (def_sym, bss_section);
3317 symbol_get_tc (def_sym)->align = align;
3321 /* Align the size of lcomm_sym. */
3322 symbol_get_frag (lcomm_sym)->fr_offset =
3323 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
3324 &~ ((1 << align) - 1));
3325 if (align > symbol_get_tc (lcomm_sym)->align)
3326 symbol_get_tc (lcomm_sym)->align = align;
3331 /* Make sym an offset from lcomm_sym. */
3332 S_SET_SEGMENT (sym, bss_section);
3333 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
3334 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
3335 symbol_get_frag (lcomm_sym)->fr_offset += size;
3338 subseg_set (current_seg, current_subseg);
3340 demand_empty_rest_of_line ();
3343 /* The .csect pseudo-op. This switches us into a different
3344 subsegment. The first argument is a symbol whose value is the
3345 start of the .csect. In COFF, csect symbols get special aux
3346 entries defined by the x_csect field of union internal_auxent. The
3347 optional second argument is the alignment (the default is 2). */
3350 ppc_csect (int ignore ATTRIBUTE_UNUSED)
3357 name = input_line_pointer;
3358 endc = get_symbol_end ();
3360 sym = symbol_find_or_make (name);
3362 *input_line_pointer = endc;
3364 if (S_GET_NAME (sym)[0] == '\0')
3366 /* An unnamed csect is assumed to be [PR]. */
3367 symbol_get_tc (sym)->symbol_class = XMC_PR;
3371 if (*input_line_pointer == ',')
3373 ++input_line_pointer;
3374 align = get_absolute_expression ();
3377 ppc_change_csect (sym, align);
3379 demand_empty_rest_of_line ();
3382 /* Change to a different csect. */
3385 ppc_change_csect (symbolS *sym, offsetT align)
3387 if (S_IS_DEFINED (sym))
3388 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
3398 /* This is a new csect. We need to look at the symbol class to
3399 figure out whether it should go in the text section or the
3403 switch (symbol_get_tc (sym)->symbol_class)
3413 S_SET_SEGMENT (sym, text_section);
3414 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
3415 ++ppc_text_subsegment;
3416 list_ptr = &ppc_text_csects;
3426 if (ppc_toc_csect != NULL
3427 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
3428 == ppc_data_subsegment))
3430 S_SET_SEGMENT (sym, data_section);
3431 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
3432 ++ppc_data_subsegment;
3433 list_ptr = &ppc_data_csects;
3439 /* We set the obstack chunk size to a small value before
3440 changing subsegments, so that we don't use a lot of memory
3441 space for what may be a small section. */
3442 hold_chunksize = chunksize;
3445 sec = subseg_new (segment_name (S_GET_SEGMENT (sym)),
3446 symbol_get_tc (sym)->subseg);
3448 chunksize = hold_chunksize;
3451 ppc_after_toc_frag = frag_now;
3453 record_alignment (sec, align);
3455 frag_align_code (align, 0);
3457 frag_align (align, 0, 0);
3459 symbol_set_frag (sym, frag_now);
3460 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3462 symbol_get_tc (sym)->align = align;
3463 symbol_get_tc (sym)->output = 1;
3464 symbol_get_tc (sym)->within = sym;
3466 for (list = *list_ptr;
3467 symbol_get_tc (list)->next != (symbolS *) NULL;
3468 list = symbol_get_tc (list)->next)
3470 symbol_get_tc (list)->next = sym;
3472 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3473 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3477 ppc_current_csect = sym;
3480 /* This function handles the .text and .data pseudo-ops. These
3481 pseudo-ops aren't really used by XCOFF; we implement them for the
3482 convenience of people who aren't used to XCOFF. */
3485 ppc_section (int type)
3492 else if (type == 'd')
3497 sym = symbol_find_or_make (name);
3499 ppc_change_csect (sym, 2);
3501 demand_empty_rest_of_line ();
3504 /* This function handles the .section pseudo-op. This is mostly to
3505 give an error, since XCOFF only supports .text, .data and .bss, but
3506 we do permit the user to name the text or data section. */
3509 ppc_named_section (int ignore ATTRIBUTE_UNUSED)
3512 const char *real_name;
3516 user_name = input_line_pointer;
3517 c = get_symbol_end ();
3519 if (strcmp (user_name, ".text") == 0)
3520 real_name = ".text[PR]";
3521 else if (strcmp (user_name, ".data") == 0)
3522 real_name = ".data[RW]";
3525 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3526 *input_line_pointer = c;
3527 ignore_rest_of_line ();
3531 *input_line_pointer = c;
3533 sym = symbol_find_or_make (real_name);
3535 ppc_change_csect (sym, 2);
3537 demand_empty_rest_of_line ();
3540 /* The .extern pseudo-op. We create an undefined symbol. */
3543 ppc_extern (int ignore ATTRIBUTE_UNUSED)
3548 name = input_line_pointer;
3549 endc = get_symbol_end ();
3551 (void) symbol_find_or_make (name);
3553 *input_line_pointer = endc;
3555 demand_empty_rest_of_line ();
3558 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3561 ppc_lglobl (int ignore ATTRIBUTE_UNUSED)
3567 name = input_line_pointer;
3568 endc = get_symbol_end ();
3570 sym = symbol_find_or_make (name);
3572 *input_line_pointer = endc;
3574 symbol_get_tc (sym)->output = 1;
3576 demand_empty_rest_of_line ();
3579 /* The .ref pseudo-op. It takes a list of symbol names and inserts R_REF
3580 relocations at the beginning of the current csect.
3582 (In principle, there's no reason why the relocations _have_ to be at
3583 the beginning. Anywhere in the csect would do. However, inserting
3584 at the beginning is what the native assmebler does, and it helps to
3585 deal with cases where the .ref statements follow the section contents.)
3587 ??? .refs don't work for empty .csects. However, the native assembler
3588 doesn't report an error in this case, and neither yet do we. */
3591 ppc_ref (int ignore ATTRIBUTE_UNUSED)
3596 if (ppc_current_csect == NULL)
3598 as_bad (_(".ref outside .csect"));
3599 ignore_rest_of_line ();
3605 name = input_line_pointer;
3606 c = get_symbol_end ();
3608 fix_at_start (symbol_get_frag (ppc_current_csect), 0,
3609 symbol_find_or_make (name), 0, FALSE, BFD_RELOC_NONE);
3611 *input_line_pointer = c;
3613 c = *input_line_pointer;
3616 input_line_pointer++;
3618 if (is_end_of_line[(unsigned char) *input_line_pointer])
3620 as_bad (_("missing symbol name"));
3621 ignore_rest_of_line ();
3628 demand_empty_rest_of_line ();
3631 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3632 although I don't know why it bothers. */
3635 ppc_rename (int ignore ATTRIBUTE_UNUSED)
3642 name = input_line_pointer;
3643 endc = get_symbol_end ();
3645 sym = symbol_find_or_make (name);
3647 *input_line_pointer = endc;
3649 if (*input_line_pointer != ',')
3651 as_bad (_("missing rename string"));
3652 ignore_rest_of_line ();
3655 ++input_line_pointer;
3657 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
3659 demand_empty_rest_of_line ();
3662 /* The .stabx pseudo-op. This is similar to a normal .stabs
3663 pseudo-op, but slightly different. A sample is
3664 .stabx "main:F-1",.main,142,0
3665 The first argument is the symbol name to create. The second is the
3666 value, and the third is the storage class. The fourth seems to be
3667 always zero, and I am assuming it is the type. */
3670 ppc_stabx (int ignore ATTRIBUTE_UNUSED)
3677 name = demand_copy_C_string (&len);
3679 if (*input_line_pointer != ',')
3681 as_bad (_("missing value"));
3684 ++input_line_pointer;
3686 ppc_stab_symbol = TRUE;
3687 sym = symbol_make (name);
3688 ppc_stab_symbol = FALSE;
3690 symbol_get_tc (sym)->real_name = name;
3692 (void) expression (&exp);
3699 as_bad (_("illegal .stabx expression; zero assumed"));
3700 exp.X_add_number = 0;
3703 S_SET_VALUE (sym, (valueT) exp.X_add_number);
3704 symbol_set_frag (sym, &zero_address_frag);
3708 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
3709 symbol_set_value_expression (sym, &exp);
3713 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
3714 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
3719 /* The value is some complex expression. This will probably
3720 fail at some later point, but this is probably the right
3721 thing to do here. */
3722 symbol_set_value_expression (sym, &exp);
3726 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3727 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3729 if (*input_line_pointer != ',')
3731 as_bad (_("missing class"));
3734 ++input_line_pointer;
3736 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
3738 if (*input_line_pointer != ',')
3740 as_bad (_("missing type"));
3743 ++input_line_pointer;
3745 S_SET_DATA_TYPE (sym, get_absolute_expression ());
3747 symbol_get_tc (sym)->output = 1;
3749 if (S_GET_STORAGE_CLASS (sym) == C_STSYM) {
3751 symbol_get_tc (sym)->within = ppc_current_block;
3756 .stabx "z",arrays_,133,0
3759 .comm arrays_,13768,3
3761 resolve_symbol_value will copy the exp's "within" into sym's when the
3762 offset is 0. Since this seems to be corner case problem,
3763 only do the correction for storage class C_STSYM. A better solution
3764 would be to have the tc field updated in ppc_symbol_new_hook. */
3766 if (exp.X_op == O_symbol)
3768 symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block;
3772 if (exp.X_op != O_symbol
3773 || ! S_IS_EXTERNAL (exp.X_add_symbol)
3774 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
3775 ppc_frob_label (sym);
3778 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3779 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
3780 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
3781 symbol_get_tc (ppc_current_csect)->within = sym;
3784 demand_empty_rest_of_line ();
3787 /* The .function pseudo-op. This takes several arguments. The first
3788 argument seems to be the external name of the symbol. The second
3789 argument seems to be the label for the start of the function. gcc
3790 uses the same name for both. I have no idea what the third and
3791 fourth arguments are meant to be. The optional fifth argument is
3792 an expression for the size of the function. In COFF this symbol
3793 gets an aux entry like that used for a csect. */
3796 ppc_function (int ignore ATTRIBUTE_UNUSED)
3804 name = input_line_pointer;
3805 endc = get_symbol_end ();
3807 /* Ignore any [PR] suffix. */
3808 name = ppc_canonicalize_symbol_name (name);
3809 s = strchr (name, '[');
3810 if (s != (char *) NULL
3811 && strcmp (s + 1, "PR]") == 0)
3814 ext_sym = symbol_find_or_make (name);
3816 *input_line_pointer = endc;
3818 if (*input_line_pointer != ',')
3820 as_bad (_("missing symbol name"));
3821 ignore_rest_of_line ();
3824 ++input_line_pointer;
3826 name = input_line_pointer;
3827 endc = get_symbol_end ();
3829 lab_sym = symbol_find_or_make (name);
3831 *input_line_pointer = endc;
3833 if (ext_sym != lab_sym)
3837 exp.X_op = O_symbol;
3838 exp.X_add_symbol = lab_sym;
3839 exp.X_op_symbol = NULL;
3840 exp.X_add_number = 0;
3842 symbol_set_value_expression (ext_sym, &exp);
3845 if (symbol_get_tc (ext_sym)->symbol_class == -1)
3846 symbol_get_tc (ext_sym)->symbol_class = XMC_PR;
3847 symbol_get_tc (ext_sym)->output = 1;
3849 if (*input_line_pointer == ',')
3853 /* Ignore the third argument. */
3854 ++input_line_pointer;
3856 if (*input_line_pointer == ',')
3858 /* Ignore the fourth argument. */
3859 ++input_line_pointer;
3861 if (*input_line_pointer == ',')
3863 /* The fifth argument is the function size. */
3864 ++input_line_pointer;
3865 symbol_get_tc (ext_sym)->size = symbol_new ("L0\001",
3868 &zero_address_frag);
3869 pseudo_set (symbol_get_tc (ext_sym)->size);
3874 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
3875 SF_SET_FUNCTION (ext_sym);
3876 SF_SET_PROCESS (ext_sym);
3877 coff_add_linesym (ext_sym);
3879 demand_empty_rest_of_line ();
3882 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3883 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3884 with the correct line number */
3886 static symbolS *saved_bi_sym = 0;
3889 ppc_bf (int ignore ATTRIBUTE_UNUSED)
3893 sym = symbol_make (".bf");
3894 S_SET_SEGMENT (sym, text_section);
3895 symbol_set_frag (sym, frag_now);
3896 S_SET_VALUE (sym, frag_now_fix ());
3897 S_SET_STORAGE_CLASS (sym, C_FCN);
3899 coff_line_base = get_absolute_expression ();
3901 S_SET_NUMBER_AUXILIARY (sym, 1);
3902 SA_SET_SYM_LNNO (sym, coff_line_base);
3904 /* Line number for bi. */
3907 S_SET_VALUE (saved_bi_sym, coff_n_line_nos);
3912 symbol_get_tc (sym)->output = 1;
3914 ppc_frob_label (sym);
3916 demand_empty_rest_of_line ();
3919 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3920 ".ef", except that the line number is absolute, not relative to the
3921 most recent ".bf" symbol. */
3924 ppc_ef (int ignore ATTRIBUTE_UNUSED)
3928 sym = symbol_make (".ef");
3929 S_SET_SEGMENT (sym, text_section);
3930 symbol_set_frag (sym, frag_now);
3931 S_SET_VALUE (sym, frag_now_fix ());
3932 S_SET_STORAGE_CLASS (sym, C_FCN);
3933 S_SET_NUMBER_AUXILIARY (sym, 1);
3934 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3935 symbol_get_tc (sym)->output = 1;
3937 ppc_frob_label (sym);
3939 demand_empty_rest_of_line ();
3942 /* The .bi and .ei pseudo-ops. These take a string argument and
3943 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3944 the symbol list. The value of .bi will be know when the next .bf
3950 static symbolS *last_biei;
3957 name = demand_copy_C_string (&len);
3959 /* The value of these symbols is actually file offset. Here we set
3960 the value to the index into the line number entries. In
3961 ppc_frob_symbols we set the fix_line field, which will cause BFD
3962 to do the right thing. */
3964 sym = symbol_make (name);
3965 /* obj-coff.c currently only handles line numbers correctly in the
3967 S_SET_SEGMENT (sym, text_section);
3968 S_SET_VALUE (sym, coff_n_line_nos);
3969 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3971 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
3972 symbol_get_tc (sym)->output = 1;
3980 for (look = last_biei ? last_biei : symbol_rootP;
3981 (look != (symbolS *) NULL
3982 && (S_GET_STORAGE_CLASS (look) == C_FILE
3983 || S_GET_STORAGE_CLASS (look) == C_BINCL
3984 || S_GET_STORAGE_CLASS (look) == C_EINCL));
3985 look = symbol_next (look))
3987 if (look != (symbolS *) NULL)
3989 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3990 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
3994 demand_empty_rest_of_line ();
3997 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3998 There is one argument, which is a csect symbol. The value of the
3999 .bs symbol is the index of this csect symbol. */
4002 ppc_bs (int ignore ATTRIBUTE_UNUSED)
4009 if (ppc_current_block != NULL)
4010 as_bad (_("nested .bs blocks"));
4012 name = input_line_pointer;
4013 endc = get_symbol_end ();
4015 csect = symbol_find_or_make (name);
4017 *input_line_pointer = endc;
4019 sym = symbol_make (".bs");
4020 S_SET_SEGMENT (sym, now_seg);
4021 S_SET_STORAGE_CLASS (sym, C_BSTAT);
4022 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4023 symbol_get_tc (sym)->output = 1;
4025 symbol_get_tc (sym)->within = csect;
4027 ppc_frob_label (sym);
4029 ppc_current_block = sym;
4031 demand_empty_rest_of_line ();
4034 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
4037 ppc_es (int ignore ATTRIBUTE_UNUSED)
4041 if (ppc_current_block == NULL)
4042 as_bad (_(".es without preceding .bs"));
4044 sym = symbol_make (".es");
4045 S_SET_SEGMENT (sym, now_seg);
4046 S_SET_STORAGE_CLASS (sym, C_ESTAT);
4047 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4048 symbol_get_tc (sym)->output = 1;
4050 ppc_frob_label (sym);
4052 ppc_current_block = NULL;
4054 demand_empty_rest_of_line ();
4057 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
4061 ppc_bb (int ignore ATTRIBUTE_UNUSED)
4065 sym = symbol_make (".bb");
4066 S_SET_SEGMENT (sym, text_section);
4067 symbol_set_frag (sym, frag_now);
4068 S_SET_VALUE (sym, frag_now_fix ());
4069 S_SET_STORAGE_CLASS (sym, C_BLOCK);
4071 S_SET_NUMBER_AUXILIARY (sym, 1);
4072 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
4074 symbol_get_tc (sym)->output = 1;
4076 SF_SET_PROCESS (sym);
4078 ppc_frob_label (sym);
4080 demand_empty_rest_of_line ();
4083 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
4087 ppc_eb (int ignore ATTRIBUTE_UNUSED)
4091 sym = symbol_make (".eb");
4092 S_SET_SEGMENT (sym, text_section);
4093 symbol_set_frag (sym, frag_now);
4094 S_SET_VALUE (sym, frag_now_fix ());
4095 S_SET_STORAGE_CLASS (sym, C_BLOCK);
4096 S_SET_NUMBER_AUXILIARY (sym, 1);
4097 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
4098 symbol_get_tc (sym)->output = 1;
4100 SF_SET_PROCESS (sym);
4102 ppc_frob_label (sym);
4104 demand_empty_rest_of_line ();
4107 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
4111 ppc_bc (int ignore ATTRIBUTE_UNUSED)
4117 name = demand_copy_C_string (&len);
4118 sym = symbol_make (name);
4119 S_SET_SEGMENT (sym, ppc_coff_debug_section);
4120 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4121 S_SET_STORAGE_CLASS (sym, C_BCOMM);
4122 S_SET_VALUE (sym, 0);
4123 symbol_get_tc (sym)->output = 1;
4125 ppc_frob_label (sym);
4127 demand_empty_rest_of_line ();
4130 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
4133 ppc_ec (int ignore ATTRIBUTE_UNUSED)
4137 sym = symbol_make (".ec");
4138 S_SET_SEGMENT (sym, ppc_coff_debug_section);
4139 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4140 S_SET_STORAGE_CLASS (sym, C_ECOMM);
4141 S_SET_VALUE (sym, 0);
4142 symbol_get_tc (sym)->output = 1;
4144 ppc_frob_label (sym);
4146 demand_empty_rest_of_line ();
4149 /* The .toc pseudo-op. Switch to the .toc subsegment. */
4152 ppc_toc (int ignore ATTRIBUTE_UNUSED)
4154 if (ppc_toc_csect != (symbolS *) NULL)
4155 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
4162 subseg = ppc_data_subsegment;
4163 ++ppc_data_subsegment;
4165 subseg_new (segment_name (data_section), subseg);
4166 ppc_toc_frag = frag_now;
4168 sym = symbol_find_or_make ("TOC[TC0]");
4169 symbol_set_frag (sym, frag_now);
4170 S_SET_SEGMENT (sym, data_section);
4171 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4172 symbol_get_tc (sym)->subseg = subseg;
4173 symbol_get_tc (sym)->output = 1;
4174 symbol_get_tc (sym)->within = sym;
4176 ppc_toc_csect = sym;
4178 for (list = ppc_data_csects;
4179 symbol_get_tc (list)->next != (symbolS *) NULL;
4180 list = symbol_get_tc (list)->next)
4182 symbol_get_tc (list)->next = sym;
4184 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4185 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
4189 ppc_current_csect = ppc_toc_csect;
4191 demand_empty_rest_of_line ();
4194 /* The AIX assembler automatically aligns the operands of a .long or
4195 .short pseudo-op, and we want to be compatible. */
4198 ppc_xcoff_cons (int log_size)
4200 frag_align (log_size, 0, 0);
4201 record_alignment (now_seg, log_size);
4202 cons (1 << log_size);
4206 ppc_vbyte (int dummy ATTRIBUTE_UNUSED)
4211 (void) expression (&exp);
4213 if (exp.X_op != O_constant)
4215 as_bad (_("non-constant byte count"));
4219 byte_count = exp.X_add_number;
4221 if (*input_line_pointer != ',')
4223 as_bad (_("missing value"));
4227 ++input_line_pointer;
4231 #endif /* OBJ_XCOFF */
4232 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
4234 /* The .tc pseudo-op. This is used when generating either XCOFF or
4235 ELF. This takes two or more arguments.
4237 When generating XCOFF output, the first argument is the name to
4238 give to this location in the toc; this will be a symbol with class
4239 TC. The rest of the arguments are N-byte values to actually put at
4240 this location in the TOC; often there is just one more argument, a
4241 relocatable symbol reference. The size of the value to store
4242 depends on target word size. A 32-bit target uses 4-byte values, a
4243 64-bit target uses 8-byte values.
4245 When not generating XCOFF output, the arguments are the same, but
4246 the first argument is simply ignored. */
4249 ppc_tc (int ignore ATTRIBUTE_UNUSED)
4253 /* Define the TOC symbol name. */
4259 if (ppc_toc_csect == (symbolS *) NULL
4260 || ppc_toc_csect != ppc_current_csect)
4262 as_bad (_(".tc not in .toc section"));
4263 ignore_rest_of_line ();
4267 name = input_line_pointer;
4268 endc = get_symbol_end ();
4270 sym = symbol_find_or_make (name);
4272 *input_line_pointer = endc;
4274 if (S_IS_DEFINED (sym))
4278 label = symbol_get_tc (ppc_current_csect)->within;
4279 if (symbol_get_tc (label)->symbol_class != XMC_TC0)
4281 as_bad (_(".tc with no label"));
4282 ignore_rest_of_line ();
4286 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
4287 symbol_set_frag (label, symbol_get_frag (sym));
4288 S_SET_VALUE (label, S_GET_VALUE (sym));
4290 while (! is_end_of_line[(unsigned char) *input_line_pointer])
4291 ++input_line_pointer;
4296 S_SET_SEGMENT (sym, now_seg);
4297 symbol_set_frag (sym, frag_now);
4298 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4299 symbol_get_tc (sym)->symbol_class = XMC_TC;
4300 symbol_get_tc (sym)->output = 1;
4302 ppc_frob_label (sym);
4305 #endif /* OBJ_XCOFF */
4309 /* Skip the TOC symbol name. */
4310 while (is_part_of_name (*input_line_pointer)
4311 || *input_line_pointer == ' '
4312 || *input_line_pointer == '['
4313 || *input_line_pointer == ']'
4314 || *input_line_pointer == '{'
4315 || *input_line_pointer == '}')
4316 ++input_line_pointer;
4318 /* Align to a four/eight byte boundary. */
4319 align = ppc_obj64 ? 3 : 2;
4320 frag_align (align, 0, 0);
4321 record_alignment (now_seg, align);
4322 #endif /* OBJ_ELF */
4324 if (*input_line_pointer != ',')
4325 demand_empty_rest_of_line ();
4328 ++input_line_pointer;
4329 cons (ppc_obj64 ? 8 : 4);
4333 /* Pseudo-op .machine. */
4336 ppc_machine (int ignore ATTRIBUTE_UNUSED)
4339 #define MAX_HISTORY 100
4340 static ppc_cpu_t *cpu_history;
4341 static int curr_hist;
4345 if (*input_line_pointer == '"')
4348 cpu_string = demand_copy_C_string (&len);
4353 cpu_string = input_line_pointer;
4354 c = get_symbol_end ();
4355 cpu_string = xstrdup (cpu_string);
4356 *input_line_pointer = c;
4359 if (cpu_string != NULL)
4361 ppc_cpu_t old_cpu = ppc_cpu;
4365 for (p = cpu_string; *p != 0; p++)
4368 if (strcmp (cpu_string, "push") == 0)
4370 if (cpu_history == NULL)
4371 cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history));
4373 if (curr_hist >= MAX_HISTORY)
4374 as_bad (_(".machine stack overflow"));
4376 cpu_history[curr_hist++] = ppc_cpu;
4378 else if (strcmp (cpu_string, "pop") == 0)
4381 as_bad (_(".machine stack underflow"));
4383 ppc_cpu = cpu_history[--curr_hist];
4385 else if ((new_cpu = ppc_parse_cpu (ppc_cpu, cpu_string)) != 0)
4388 as_bad (_("invalid machine `%s'"), cpu_string);
4390 if (ppc_cpu != old_cpu)
4391 ppc_setup_opcodes ();
4394 demand_empty_rest_of_line ();
4397 /* See whether a symbol is in the TOC section. */
4400 ppc_is_toc_sym (symbolS *sym)
4403 return symbol_get_tc (sym)->symbol_class == XMC_TC;
4406 const char *sname = segment_name (S_GET_SEGMENT (sym));
4408 return strcmp (sname, ".toc") == 0;
4410 return strcmp (sname, ".got") == 0;
4413 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4417 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4419 /* Set the current section. */
4421 ppc_set_current_section (segT new)
4423 ppc_previous_section = ppc_current_section;
4424 ppc_current_section = new;
4427 /* pseudo-op: .previous
4428 behaviour: toggles the current section with the previous section.
4430 warnings: "No previous section" */
4433 ppc_previous (int ignore ATTRIBUTE_UNUSED)
4437 if (ppc_previous_section == NULL)
4439 as_warn (_("No previous section to return to. Directive ignored."));
4443 subseg_set (ppc_previous_section, 0);
4445 ppc_set_current_section (ppc_previous_section);
4448 /* pseudo-op: .pdata
4449 behaviour: predefined read only data section
4453 initial: .section .pdata "adr3"
4454 a - don't know -- maybe a misprint
4455 d - initialized data
4457 3 - double word aligned (that would be 4 byte boundary)
4460 Tag index tables (also known as the function table) for exception
4461 handling, debugging, etc. */
4464 ppc_pdata (int ignore ATTRIBUTE_UNUSED)
4466 if (pdata_section == 0)
4468 pdata_section = subseg_new (".pdata", 0);
4470 bfd_set_section_flags (stdoutput, pdata_section,
4471 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4472 | SEC_READONLY | SEC_DATA ));
4474 bfd_set_section_alignment (stdoutput, pdata_section, 2);
4478 pdata_section = subseg_new (".pdata", 0);
4480 ppc_set_current_section (pdata_section);
4483 /* pseudo-op: .ydata
4484 behaviour: predefined read only data section
4488 initial: .section .ydata "drw3"
4489 a - don't know -- maybe a misprint
4490 d - initialized data
4492 3 - double word aligned (that would be 4 byte boundary)
4494 Tag tables (also known as the scope table) for exception handling,
4498 ppc_ydata (int ignore ATTRIBUTE_UNUSED)
4500 if (ydata_section == 0)
4502 ydata_section = subseg_new (".ydata", 0);
4503 bfd_set_section_flags (stdoutput, ydata_section,
4504 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4505 | SEC_READONLY | SEC_DATA ));
4507 bfd_set_section_alignment (stdoutput, ydata_section, 3);
4511 ydata_section = subseg_new (".ydata", 0);
4513 ppc_set_current_section (ydata_section);
4516 /* pseudo-op: .reldata
4517 behaviour: predefined read write data section
4518 double word aligned (4-byte)
4519 FIXME: relocation is applied to it
4520 FIXME: what's the difference between this and .data?
4523 initial: .section .reldata "drw3"
4524 d - initialized data
4527 3 - double word aligned (that would be 8 byte boundary)
4530 Like .data, but intended to hold data subject to relocation, such as
4531 function descriptors, etc. */
4534 ppc_reldata (int ignore ATTRIBUTE_UNUSED)
4536 if (reldata_section == 0)
4538 reldata_section = subseg_new (".reldata", 0);
4540 bfd_set_section_flags (stdoutput, reldata_section,
4541 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4544 bfd_set_section_alignment (stdoutput, reldata_section, 2);
4548 reldata_section = subseg_new (".reldata", 0);
4550 ppc_set_current_section (reldata_section);
4553 /* pseudo-op: .rdata
4554 behaviour: predefined read only data section
4558 initial: .section .rdata "dr3"
4559 d - initialized data
4561 3 - double word aligned (that would be 4 byte boundary) */
4564 ppc_rdata (int ignore ATTRIBUTE_UNUSED)
4566 if (rdata_section == 0)
4568 rdata_section = subseg_new (".rdata", 0);
4569 bfd_set_section_flags (stdoutput, rdata_section,
4570 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4571 | SEC_READONLY | SEC_DATA ));
4573 bfd_set_section_alignment (stdoutput, rdata_section, 2);
4577 rdata_section = subseg_new (".rdata", 0);
4579 ppc_set_current_section (rdata_section);
4582 /* pseudo-op: .ualong
4583 behaviour: much like .int, with the exception that no alignment is
4585 FIXME: test the alignment statement
4590 ppc_ualong (int ignore ATTRIBUTE_UNUSED)
4596 /* pseudo-op: .znop <symbol name>
4597 behaviour: Issue a nop instruction
4598 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4599 the supplied symbol name.
4601 warnings: Missing symbol name */
4604 ppc_znop (int ignore ATTRIBUTE_UNUSED)
4607 const struct powerpc_opcode *opcode;
4618 /* Strip out the symbol name. */
4619 symbol_name = input_line_pointer;
4620 c = get_symbol_end ();
4622 name = xmalloc (input_line_pointer - symbol_name + 1);
4623 strcpy (name, symbol_name);
4625 sym = symbol_find_or_make (name);
4627 *input_line_pointer = c;
4631 /* Look up the opcode in the hash table. */
4632 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
4634 /* Stick in the nop. */
4635 insn = opcode->opcode;
4637 /* Write out the instruction. */
4639 md_number_to_chars (f, insn, 4);
4641 f - frag_now->fr_literal,
4646 BFD_RELOC_16_GOT_PCREL);
4656 ppc_pe_comm (int lcomm)
4665 name = input_line_pointer;
4666 c = get_symbol_end ();
4668 /* just after name is now '\0'. */
4669 p = input_line_pointer;
4672 if (*input_line_pointer != ',')
4674 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4675 ignore_rest_of_line ();
4679 input_line_pointer++; /* skip ',' */
4680 if ((temp = get_absolute_expression ()) < 0)
4682 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
4683 ignore_rest_of_line ();
4689 /* The third argument to .comm is the alignment. */
4690 if (*input_line_pointer != ',')
4694 ++input_line_pointer;
4695 align = get_absolute_expression ();
4698 as_warn (_("ignoring bad alignment"));
4705 symbolP = symbol_find_or_make (name);
4708 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
4710 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4711 S_GET_NAME (symbolP));
4712 ignore_rest_of_line ();
4716 if (S_GET_VALUE (symbolP))
4718 if (S_GET_VALUE (symbolP) != (valueT) temp)
4719 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4720 S_GET_NAME (symbolP),
4721 (long) S_GET_VALUE (symbolP),
4726 S_SET_VALUE (symbolP, (valueT) temp);
4727 S_SET_EXTERNAL (symbolP);
4728 S_SET_SEGMENT (symbolP, bfd_com_section_ptr);
4731 demand_empty_rest_of_line ();
4735 * implement the .section pseudo op:
4736 * .section name {, "flags"}
4738 * | +--- optional flags: 'b' for bss
4740 * +-- section name 'l' for lib
4744 * 'd' (apparently m88k for data)
4746 * But if the argument is not a quoted string, treat it as a
4747 * subsegment number.
4749 * FIXME: this is a copy of the section processing from obj-coff.c, with
4750 * additions/changes for the moto-pas assembler support. There are three
4753 * FIXME: I just noticed this. This doesn't work at all really. It it
4754 * setting bits that bfd probably neither understands or uses. The
4755 * correct approach (?) will have to incorporate extra fields attached
4756 * to the section to hold the system specific stuff. (krk)
4759 * 'a' - unknown - referred to in documentation, but no definition supplied
4760 * 'c' - section has code
4761 * 'd' - section has initialized data
4762 * 'u' - section has uninitialized data
4763 * 'i' - section contains directives (info)
4764 * 'n' - section can be discarded
4765 * 'R' - remove section at link time
4767 * Section Protection:
4768 * 'r' - section is readable
4769 * 'w' - section is writeable
4770 * 'x' - section is executable
4771 * 's' - section is sharable
4773 * Section Alignment:
4774 * '0' - align to byte boundary
4775 * '1' - align to halfword undary
4776 * '2' - align to word boundary
4777 * '3' - align to doubleword boundary
4778 * '4' - align to quadword boundary
4779 * '5' - align to 32 byte boundary
4780 * '6' - align to 64 byte boundary
4785 ppc_pe_section (int ignore ATTRIBUTE_UNUSED)
4787 /* Strip out the section name. */
4796 section_name = input_line_pointer;
4797 c = get_symbol_end ();
4799 name = xmalloc (input_line_pointer - section_name + 1);
4800 strcpy (name, section_name);
4802 *input_line_pointer = c;
4807 flags = SEC_NO_FLAGS;
4809 if (strcmp (name, ".idata$2") == 0)
4813 else if (strcmp (name, ".idata$3") == 0)
4817 else if (strcmp (name, ".idata$4") == 0)
4821 else if (strcmp (name, ".idata$5") == 0)
4825 else if (strcmp (name, ".idata$6") == 0)
4830 /* Default alignment to 16 byte boundary. */
4833 if (*input_line_pointer == ',')
4835 ++input_line_pointer;
4837 if (*input_line_pointer != '"')
4838 exp = get_absolute_expression ();
4841 ++input_line_pointer;
4842 while (*input_line_pointer != '"'
4843 && ! is_end_of_line[(unsigned char) *input_line_pointer])
4845 switch (*input_line_pointer)
4847 /* Section Contents */
4848 case 'a': /* unknown */
4849 as_bad (_("Unsupported section attribute -- 'a'"));
4851 case 'c': /* code section */
4854 case 'd': /* section has initialized data */
4857 case 'u': /* section has uninitialized data */
4858 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4862 case 'i': /* section contains directives (info) */
4863 /* FIXME: This is IMAGE_SCN_LNK_INFO
4865 flags |= SEC_HAS_CONTENTS;
4867 case 'n': /* section can be discarded */
4870 case 'R': /* Remove section at link time */
4871 flags |= SEC_NEVER_LOAD;
4873 #if IFLICT_BRAIN_DAMAGE
4874 /* Section Protection */
4875 case 'r': /* section is readable */
4876 flags |= IMAGE_SCN_MEM_READ;
4878 case 'w': /* section is writeable */
4879 flags |= IMAGE_SCN_MEM_WRITE;
4881 case 'x': /* section is executable */
4882 flags |= IMAGE_SCN_MEM_EXECUTE;
4884 case 's': /* section is sharable */
4885 flags |= IMAGE_SCN_MEM_SHARED;
4888 /* Section Alignment */
4889 case '0': /* align to byte boundary */
4890 flags |= IMAGE_SCN_ALIGN_1BYTES;
4893 case '1': /* align to halfword boundary */
4894 flags |= IMAGE_SCN_ALIGN_2BYTES;
4897 case '2': /* align to word boundary */
4898 flags |= IMAGE_SCN_ALIGN_4BYTES;
4901 case '3': /* align to doubleword boundary */
4902 flags |= IMAGE_SCN_ALIGN_8BYTES;
4905 case '4': /* align to quadword boundary */
4906 flags |= IMAGE_SCN_ALIGN_16BYTES;
4909 case '5': /* align to 32 byte boundary */
4910 flags |= IMAGE_SCN_ALIGN_32BYTES;
4913 case '6': /* align to 64 byte boundary */
4914 flags |= IMAGE_SCN_ALIGN_64BYTES;
4919 as_bad (_("unknown section attribute '%c'"),
4920 *input_line_pointer);
4923 ++input_line_pointer;
4925 if (*input_line_pointer == '"')
4926 ++input_line_pointer;
4930 sec = subseg_new (name, (subsegT) exp);
4932 ppc_set_current_section (sec);
4934 if (flags != SEC_NO_FLAGS)
4936 if (! bfd_set_section_flags (stdoutput, sec, flags))
4937 as_bad (_("error setting flags for \"%s\": %s"),
4938 bfd_section_name (stdoutput, sec),
4939 bfd_errmsg (bfd_get_error ()));
4942 bfd_set_section_alignment (stdoutput, sec, align);
4946 ppc_pe_function (int ignore ATTRIBUTE_UNUSED)
4952 name = input_line_pointer;
4953 endc = get_symbol_end ();
4955 ext_sym = symbol_find_or_make (name);
4957 *input_line_pointer = endc;
4959 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
4960 SF_SET_FUNCTION (ext_sym);
4961 SF_SET_PROCESS (ext_sym);
4962 coff_add_linesym (ext_sym);
4964 demand_empty_rest_of_line ();
4968 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED)
4970 if (tocdata_section == 0)
4972 tocdata_section = subseg_new (".tocd", 0);
4973 /* FIXME: section flags won't work. */
4974 bfd_set_section_flags (stdoutput, tocdata_section,
4975 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4976 | SEC_READONLY | SEC_DATA));
4978 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
4982 rdata_section = subseg_new (".tocd", 0);
4985 ppc_set_current_section (tocdata_section);
4987 demand_empty_rest_of_line ();
4990 /* Don't adjust TOC relocs to use the section symbol. */
4993 ppc_pe_fix_adjustable (fixS *fix)
4995 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
5002 /* XCOFF specific symbol and file handling. */
5004 /* Canonicalize the symbol name. We use the to force the suffix, if
5005 any, to use square brackets, and to be in upper case. */
5008 ppc_canonicalize_symbol_name (char *name)
5012 if (ppc_stab_symbol)
5015 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
5029 for (s++; *s != '\0' && *s != brac; s++)
5032 if (*s == '\0' || s[1] != '\0')
5033 as_bad (_("bad symbol suffix"));
5041 /* Set the class of a symbol based on the suffix, if any. This is
5042 called whenever a new symbol is created. */
5045 ppc_symbol_new_hook (symbolS *sym)
5047 struct ppc_tc_sy *tc;
5050 tc = symbol_get_tc (sym);
5053 tc->symbol_class = -1;
5054 tc->real_name = NULL;
5060 if (ppc_stab_symbol)
5063 s = strchr (S_GET_NAME (sym), '[');
5064 if (s == (const char *) NULL)
5066 /* There is no suffix. */
5075 if (strcmp (s, "BS]") == 0)
5076 tc->symbol_class = XMC_BS;
5079 if (strcmp (s, "DB]") == 0)
5080 tc->symbol_class = XMC_DB;
5081 else if (strcmp (s, "DS]") == 0)
5082 tc->symbol_class = XMC_DS;
5085 if (strcmp (s, "GL]") == 0)
5086 tc->symbol_class = XMC_GL;
5089 if (strcmp (s, "PR]") == 0)
5090 tc->symbol_class = XMC_PR;
5093 if (strcmp (s, "RO]") == 0)
5094 tc->symbol_class = XMC_RO;
5095 else if (strcmp (s, "RW]") == 0)
5096 tc->symbol_class = XMC_RW;
5099 if (strcmp (s, "SV]") == 0)
5100 tc->symbol_class = XMC_SV;
5103 if (strcmp (s, "TC]") == 0)
5104 tc->symbol_class = XMC_TC;
5105 else if (strcmp (s, "TI]") == 0)
5106 tc->symbol_class = XMC_TI;
5107 else if (strcmp (s, "TB]") == 0)
5108 tc->symbol_class = XMC_TB;
5109 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
5110 tc->symbol_class = XMC_TC0;
5113 if (strcmp (s, "UA]") == 0)
5114 tc->symbol_class = XMC_UA;
5115 else if (strcmp (s, "UC]") == 0)
5116 tc->symbol_class = XMC_UC;
5119 if (strcmp (s, "XO]") == 0)
5120 tc->symbol_class = XMC_XO;
5124 if (tc->symbol_class == -1)
5125 as_bad (_("Unrecognized symbol suffix"));
5128 /* Set the class of a label based on where it is defined. This
5129 handles symbols without suffixes. Also, move the symbol so that it
5130 follows the csect symbol. */
5133 ppc_frob_label (symbolS *sym)
5135 if (ppc_current_csect != (symbolS *) NULL)
5137 if (symbol_get_tc (sym)->symbol_class == -1)
5138 symbol_get_tc (sym)->symbol_class = symbol_get_tc (ppc_current_csect)->symbol_class;
5140 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
5141 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
5142 &symbol_rootP, &symbol_lastP);
5143 symbol_get_tc (ppc_current_csect)->within = sym;
5147 dwarf2_emit_label (sym);
5151 /* This variable is set by ppc_frob_symbol if any absolute symbols are
5152 seen. It tells ppc_adjust_symtab whether it needs to look through
5155 static bfd_boolean ppc_saw_abs;
5157 /* Change the name of a symbol just before writing it out. Set the
5158 real name if the .rename pseudo-op was used. Otherwise, remove any
5159 class suffix. Return 1 if the symbol should not be included in the
5163 ppc_frob_symbol (symbolS *sym)
5165 static symbolS *ppc_last_function;
5166 static symbolS *set_end;
5168 /* Discard symbols that should not be included in the output symbol
5170 if (! symbol_used_in_reloc_p (sym)
5171 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
5172 || (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5173 && ! symbol_get_tc (sym)->output
5174 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
5177 /* This one will disappear anyway. Don't make a csect sym for it. */
5178 if (sym == abs_section_sym)
5181 if (symbol_get_tc (sym)->real_name != (char *) NULL)
5182 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
5188 name = S_GET_NAME (sym);
5189 s = strchr (name, '[');
5190 if (s != (char *) NULL)
5196 snew = xmalloc (len + 1);
5197 memcpy (snew, name, len);
5200 S_SET_NAME (sym, snew);
5204 if (set_end != (symbolS *) NULL)
5206 SA_SET_SYM_ENDNDX (set_end, sym);
5210 if (SF_GET_FUNCTION (sym))
5212 if (ppc_last_function != (symbolS *) NULL)
5213 as_bad (_("two .function pseudo-ops with no intervening .ef"));
5214 ppc_last_function = sym;
5215 if (symbol_get_tc (sym)->size != (symbolS *) NULL)
5217 resolve_symbol_value (symbol_get_tc (sym)->size);
5218 SA_SET_SYM_FSIZE (sym,
5219 (long) S_GET_VALUE (symbol_get_tc (sym)->size));
5222 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
5223 && strcmp (S_GET_NAME (sym), ".ef") == 0)
5225 if (ppc_last_function == (symbolS *) NULL)
5226 as_bad (_(".ef with no preceding .function"));
5229 set_end = ppc_last_function;
5230 ppc_last_function = NULL;
5232 /* We don't have a C_EFCN symbol, but we need to force the
5233 COFF backend to believe that it has seen one. */
5234 coff_last_function = NULL;
5238 if (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5239 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
5240 && S_GET_STORAGE_CLASS (sym) != C_FILE
5241 && S_GET_STORAGE_CLASS (sym) != C_FCN
5242 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
5243 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
5244 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
5245 && S_GET_STORAGE_CLASS (sym) != C_BINCL
5246 && S_GET_STORAGE_CLASS (sym) != C_EINCL
5247 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
5248 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
5250 if (S_GET_STORAGE_CLASS (sym) == C_EXT
5251 || S_GET_STORAGE_CLASS (sym) == C_AIX_WEAKEXT
5252 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
5255 union internal_auxent *a;
5257 /* Create a csect aux. */
5258 i = S_GET_NUMBER_AUXILIARY (sym);
5259 S_SET_NUMBER_AUXILIARY (sym, i + 1);
5260 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
5261 if (symbol_get_tc (sym)->symbol_class == XMC_TC0)
5263 /* This is the TOC table. */
5264 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
5265 a->x_csect.x_scnlen.l = 0;
5266 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5268 else if (symbol_get_tc (sym)->subseg != 0)
5270 /* This is a csect symbol. x_scnlen is the size of the
5272 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
5273 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5274 S_GET_SEGMENT (sym))
5275 - S_GET_VALUE (sym));
5278 resolve_symbol_value (symbol_get_tc (sym)->next);
5279 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
5280 - S_GET_VALUE (sym));
5282 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
5284 else if (S_GET_SEGMENT (sym) == bss_section)
5286 /* This is a common symbol. */
5287 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
5288 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
5289 if (S_IS_EXTERNAL (sym))
5290 symbol_get_tc (sym)->symbol_class = XMC_RW;
5292 symbol_get_tc (sym)->symbol_class = XMC_BS;
5294 else if (S_GET_SEGMENT (sym) == absolute_section)
5296 /* This is an absolute symbol. The csect will be created by
5297 ppc_adjust_symtab. */
5299 a->x_csect.x_smtyp = XTY_LD;
5300 if (symbol_get_tc (sym)->symbol_class == -1)
5301 symbol_get_tc (sym)->symbol_class = XMC_XO;
5303 else if (! S_IS_DEFINED (sym))
5305 /* This is an external symbol. */
5306 a->x_csect.x_scnlen.l = 0;
5307 a->x_csect.x_smtyp = XTY_ER;
5309 else if (symbol_get_tc (sym)->symbol_class == XMC_TC)
5313 /* This is a TOC definition. x_scnlen is the size of the
5315 next = symbol_next (sym);
5316 while (symbol_get_tc (next)->symbol_class == XMC_TC0)
5317 next = symbol_next (next);
5318 if (next == (symbolS *) NULL
5319 || symbol_get_tc (next)->symbol_class != XMC_TC)
5321 if (ppc_after_toc_frag == (fragS *) NULL)
5322 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5324 - S_GET_VALUE (sym));
5326 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
5327 - S_GET_VALUE (sym));
5331 resolve_symbol_value (next);
5332 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
5333 - S_GET_VALUE (sym));
5335 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5341 /* This is a normal symbol definition. x_scnlen is the
5342 symbol index of the containing csect. */
5343 if (S_GET_SEGMENT (sym) == text_section)
5344 csect = ppc_text_csects;
5345 else if (S_GET_SEGMENT (sym) == data_section)
5346 csect = ppc_data_csects;
5350 /* Skip the initial dummy symbol. */
5351 csect = symbol_get_tc (csect)->next;
5353 if (csect == (symbolS *) NULL)
5355 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
5356 a->x_csect.x_scnlen.l = 0;
5360 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
5362 resolve_symbol_value (symbol_get_tc (csect)->next);
5363 if (S_GET_VALUE (symbol_get_tc (csect)->next)
5364 > S_GET_VALUE (sym))
5366 csect = symbol_get_tc (csect)->next;
5369 a->x_csect.x_scnlen.p =
5370 coffsymbol (symbol_get_bfdsym (csect))->native;
5371 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
5374 a->x_csect.x_smtyp = XTY_LD;
5377 a->x_csect.x_parmhash = 0;
5378 a->x_csect.x_snhash = 0;
5379 if (symbol_get_tc (sym)->symbol_class == -1)
5380 a->x_csect.x_smclas = XMC_PR;
5382 a->x_csect.x_smclas = symbol_get_tc (sym)->symbol_class;
5383 a->x_csect.x_stab = 0;
5384 a->x_csect.x_snstab = 0;
5386 /* Don't let the COFF backend resort these symbols. */
5387 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
5389 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
5391 /* We want the value to be the symbol index of the referenced
5392 csect symbol. BFD will do that for us if we set the right
5394 asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within);
5395 combined_entry_type *c = coffsymbol (bsym)->native;
5397 S_SET_VALUE (sym, (valueT) (size_t) c);
5398 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
5400 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
5405 /* The value is the offset from the enclosing csect. */
5406 block = symbol_get_tc (sym)->within;
5407 csect = symbol_get_tc (block)->within;
5408 resolve_symbol_value (csect);
5409 S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect));
5411 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
5412 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
5414 /* We want the value to be a file offset into the line numbers.
5415 BFD will do that for us if we set the right flags. We have
5416 already set the value correctly. */
5417 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
5423 /* Adjust the symbol table. This creates csect symbols for all
5424 absolute symbols. */
5427 ppc_adjust_symtab (void)
5434 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
5438 union internal_auxent *a;
5440 if (S_GET_SEGMENT (sym) != absolute_section)
5443 csect = symbol_create (".abs[XO]", absolute_section,
5444 S_GET_VALUE (sym), &zero_address_frag);
5445 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
5446 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
5447 i = S_GET_NUMBER_AUXILIARY (csect);
5448 S_SET_NUMBER_AUXILIARY (csect, i + 1);
5449 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
5450 a->x_csect.x_scnlen.l = 0;
5451 a->x_csect.x_smtyp = XTY_SD;
5452 a->x_csect.x_parmhash = 0;
5453 a->x_csect.x_snhash = 0;
5454 a->x_csect.x_smclas = XMC_XO;
5455 a->x_csect.x_stab = 0;
5456 a->x_csect.x_snstab = 0;
5458 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
5460 i = S_GET_NUMBER_AUXILIARY (sym);
5461 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
5462 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
5463 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
5466 ppc_saw_abs = FALSE;
5469 /* Set the VMA for a section. This is called on all the sections in
5473 ppc_frob_section (asection *sec)
5475 static bfd_vma vma = 0;
5477 vma = md_section_align (sec, vma);
5478 bfd_set_section_vma (stdoutput, sec, vma);
5479 vma += bfd_section_size (stdoutput, sec);
5482 #endif /* OBJ_XCOFF */
5485 md_atof (int type, char *litp, int *sizep)
5487 return ieee_md_atof (type, litp, sizep, target_big_endian);
5490 /* Write a value out to the object file, using the appropriate
5494 md_number_to_chars (char *buf, valueT val, int n)
5496 if (target_big_endian)
5497 number_to_chars_bigendian (buf, val, n);
5499 number_to_chars_littleendian (buf, val, n);
5502 /* Align a section (I don't know why this is machine dependent). */
5505 md_section_align (asection *seg ATTRIBUTE_UNUSED, valueT addr)
5510 int align = bfd_get_section_alignment (stdoutput, seg);
5512 return ((addr + (1 << align) - 1) & (-1 << align));
5516 /* We don't have any form of relaxing. */
5519 md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED,
5520 asection *seg ATTRIBUTE_UNUSED)
5526 /* Convert a machine dependent frag. We never generate these. */
5529 md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
5530 asection *sec ATTRIBUTE_UNUSED,
5531 fragS *fragp ATTRIBUTE_UNUSED)
5536 /* We have no need to default values of symbols. */
5539 md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
5544 /* Functions concerning relocs. */
5546 /* The location from which a PC relative jump should be calculated,
5547 given a PC relative reloc. */
5550 md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED)
5552 return fixp->fx_frag->fr_address + fixp->fx_where;
5557 /* This is called to see whether a fixup should be adjusted to use a
5558 section symbol. We take the opportunity to change a fixup against
5559 a symbol in the TOC subsegment into a reloc against the
5560 corresponding .tc symbol. */
5563 ppc_fix_adjustable (fixS *fix)
5565 valueT val = resolve_symbol_value (fix->fx_addsy);
5566 segT symseg = S_GET_SEGMENT (fix->fx_addsy);
5567 TC_SYMFIELD_TYPE *tc;
5569 if (symseg == absolute_section)
5572 if (ppc_toc_csect != (symbolS *) NULL
5573 && fix->fx_addsy != ppc_toc_csect
5574 && symseg == data_section
5575 && val >= ppc_toc_frag->fr_address
5576 && (ppc_after_toc_frag == (fragS *) NULL
5577 || val < ppc_after_toc_frag->fr_address))
5581 for (sy = symbol_next (ppc_toc_csect);
5582 sy != (symbolS *) NULL;
5583 sy = symbol_next (sy))
5585 TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy);
5587 if (sy_tc->symbol_class == XMC_TC0)
5589 if (sy_tc->symbol_class != XMC_TC)
5591 if (val == resolve_symbol_value (sy))
5594 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
5599 as_bad_where (fix->fx_file, fix->fx_line,
5600 _("symbol in .toc does not match any .tc"));
5603 /* Possibly adjust the reloc to be against the csect. */
5604 tc = symbol_get_tc (fix->fx_addsy);
5606 && tc->symbol_class != XMC_TC0
5607 && tc->symbol_class != XMC_TC
5608 && symseg != bss_section
5609 /* Don't adjust if this is a reloc in the toc section. */
5610 && (symseg != data_section
5611 || ppc_toc_csect == NULL
5612 || val < ppc_toc_frag->fr_address
5613 || (ppc_after_toc_frag != NULL
5614 && val >= ppc_after_toc_frag->fr_address)))
5617 symbolS *next_csect;
5619 if (symseg == text_section)
5620 csect = ppc_text_csects;
5621 else if (symseg == data_section)
5622 csect = ppc_data_csects;
5626 /* Skip the initial dummy symbol. */
5627 csect = symbol_get_tc (csect)->next;
5629 if (csect != (symbolS *) NULL)
5631 while ((next_csect = symbol_get_tc (csect)->next) != (symbolS *) NULL
5632 && (symbol_get_frag (next_csect)->fr_address <= val))
5634 /* If the csect address equals the symbol value, then we
5635 have to look through the full symbol table to see
5636 whether this is the csect we want. Note that we will
5637 only get here if the csect has zero length. */
5638 if (symbol_get_frag (csect)->fr_address == val
5639 && S_GET_VALUE (csect) == val)
5643 for (scan = symbol_next (csect);
5645 scan = symbol_next (scan))
5647 if (symbol_get_tc (scan)->subseg != 0)
5649 if (scan == fix->fx_addsy)
5653 /* If we found the symbol before the next csect
5654 symbol, then this is the csect we want. */
5655 if (scan == fix->fx_addsy)
5662 fix->fx_offset += val - symbol_get_frag (csect)->fr_address;
5663 fix->fx_addsy = csect;
5668 /* Adjust a reloc against a .lcomm symbol to be against the base
5670 if (symseg == bss_section
5671 && ! S_IS_EXTERNAL (fix->fx_addsy))
5673 symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
5675 fix->fx_offset += val - resolve_symbol_value (sy);
5682 /* A reloc from one csect to another must be kept. The assembler
5683 will, of course, keep relocs between sections, and it will keep
5684 absolute relocs, but we need to force it to keep PC relative relocs
5685 between two csects in the same section. */
5688 ppc_force_relocation (fixS *fix)
5690 /* At this point fix->fx_addsy should already have been converted to
5691 a csect symbol. If the csect does not include the fragment, then
5692 we need to force the relocation. */
5694 && fix->fx_addsy != NULL
5695 && symbol_get_tc (fix->fx_addsy)->subseg != 0
5696 && ((symbol_get_frag (fix->fx_addsy)->fr_address
5697 > fix->fx_frag->fr_address)
5698 || (symbol_get_tc (fix->fx_addsy)->next != NULL
5699 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
5700 <= fix->fx_frag->fr_address))))
5703 return generic_force_reloc (fix);
5706 #endif /* OBJ_XCOFF */
5709 /* If this function returns non-zero, it guarantees that a relocation
5710 will be emitted for a fixup. */
5713 ppc_force_relocation (fixS *fix)
5715 /* Branch prediction relocations must force a relocation, as must
5716 the vtable description relocs. */
5717 switch (fix->fx_r_type)
5719 case BFD_RELOC_PPC_B16_BRTAKEN:
5720 case BFD_RELOC_PPC_B16_BRNTAKEN:
5721 case BFD_RELOC_PPC_BA16_BRTAKEN:
5722 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5723 case BFD_RELOC_24_PLT_PCREL:
5724 case BFD_RELOC_PPC64_TOC:
5730 if (fix->fx_r_type >= BFD_RELOC_PPC_TLS
5731 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)
5734 return generic_force_reloc (fix);
5738 ppc_fix_adjustable (fixS *fix)
5740 return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
5741 && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
5742 && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
5743 && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
5744 && fix->fx_r_type != BFD_RELOC_PPC64_GOT16_DS
5745 && fix->fx_r_type != BFD_RELOC_PPC64_GOT16_LO_DS
5746 && fix->fx_r_type != BFD_RELOC_GPREL16
5747 && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT
5748 && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY
5749 && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS
5750 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA));
5754 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
5755 rs_align_code frag. */
5758 ppc_handle_align (struct frag *fragP)
5760 valueT count = (fragP->fr_next->fr_address
5761 - (fragP->fr_address + fragP->fr_fix));
5763 if (count != 0 && (count & 3) == 0)
5765 char *dest = fragP->fr_literal + fragP->fr_fix;
5769 if (count > 4 * nop_limit && count < 0x2000000)
5773 /* Make a branch, then follow with nops. Insert another
5774 frag to handle the nops. */
5775 md_number_to_chars (dest, 0x48000000 + count, 4);
5780 rest = xmalloc (SIZEOF_STRUCT_FRAG + 4);
5781 memcpy (rest, fragP, SIZEOF_STRUCT_FRAG);
5782 fragP->fr_next = rest;
5784 rest->fr_address += rest->fr_fix + 4;
5786 /* If we leave the next frag as rs_align_code we'll come here
5787 again, resulting in a bunch of branches rather than a
5788 branch followed by nops. */
5789 rest->fr_type = rs_align;
5790 dest = rest->fr_literal;
5793 md_number_to_chars (dest, 0x60000000, 4);
5795 if ((ppc_cpu & PPC_OPCODE_POWER6) != 0
5796 || (ppc_cpu & PPC_OPCODE_POWER7) != 0)
5798 /* For power6 and power7, we want the last nop to be a group
5799 terminating one. Do this by inserting an rs_fill frag immediately
5800 after this one, with its address set to the last nop location.
5801 This will automatically reduce the number of nops in the current
5805 struct frag *group_nop = xmalloc (SIZEOF_STRUCT_FRAG + 4);
5807 memcpy (group_nop, fragP, SIZEOF_STRUCT_FRAG);
5808 group_nop->fr_address = group_nop->fr_next->fr_address - 4;
5809 group_nop->fr_fix = 0;
5810 group_nop->fr_offset = 1;
5811 group_nop->fr_type = rs_fill;
5812 fragP->fr_next = group_nop;
5813 dest = group_nop->fr_literal;
5816 if ((ppc_cpu & PPC_OPCODE_POWER7) != 0)
5817 /* power7 group terminating nop: "ori 2,2,0". */
5818 md_number_to_chars (dest, 0x60420000, 4);
5820 /* power6 group terminating nop: "ori 1,1,0". */
5821 md_number_to_chars (dest, 0x60210000, 4);
5826 /* Apply a fixup to the object code. This is called for all the
5827 fixups we generated by the call to fix_new_exp, above. In the call
5828 above we used a reloc code which was the largest legal reloc code
5829 plus the operand index. Here we undo that to recover the operand
5830 index. At this point all symbol values should be fully resolved,
5831 and we attempt to completely resolve the reloc. If we can not do
5832 that, we determine the correct reloc code and put it back in the
5836 md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
5838 valueT value = * valP;
5841 if (fixP->fx_addsy != NULL)
5843 /* Hack around bfd_install_relocation brain damage. */
5845 value += fixP->fx_frag->fr_address + fixP->fx_where;
5850 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5851 the symbol values. If we are doing this relocation the code in
5852 write.c is going to call bfd_install_relocation, which is also
5853 going to use the symbol value. That means that if the reloc is
5854 fully resolved we want to use *valP since bfd_install_relocation is
5856 However, if the reloc is not fully resolved we do not want to
5857 use *valP, and must use fx_offset instead. If the relocation
5858 is PC-relative, we then need to re-apply md_pcrel_from_section
5859 to this new relocation value. */
5860 if (fixP->fx_addsy == (symbolS *) NULL)
5865 value = fixP->fx_offset;
5867 value -= md_pcrel_from_section (fixP, seg);
5871 if (fixP->fx_subsy != (symbolS *) NULL)
5873 /* We can't actually support subtracting a symbol. */
5874 as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
5877 if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
5880 const struct powerpc_operand *operand;
5884 opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED;
5886 operand = &powerpc_operands[opindex];
5889 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5890 does not generate a reloc. It uses the offset of `sym' within its
5891 csect. Other usages, such as `.long sym', generate relocs. This
5892 is the documented behaviour of non-TOC symbols. */
5893 if ((operand->flags & PPC_OPERAND_PARENS) != 0
5894 && (operand->bitm & 0xfff0) == 0xfff0
5895 && operand->shift == 0
5896 && (operand->insert == NULL || ppc_obj64)
5897 && fixP->fx_addsy != NULL
5898 && symbol_get_tc (fixP->fx_addsy)->subseg != 0
5899 && symbol_get_tc (fixP->fx_addsy)->symbol_class != XMC_TC
5900 && symbol_get_tc (fixP->fx_addsy)->symbol_class != XMC_TC0
5901 && S_GET_SEGMENT (fixP->fx_addsy) != bss_section)
5903 value = fixP->fx_offset;
5908 /* Fetch the instruction, insert the fully resolved operand
5909 value, and stuff the instruction back again. */
5910 where = fixP->fx_frag->fr_literal + fixP->fx_where;
5911 if (target_big_endian)
5912 insn = bfd_getb32 ((unsigned char *) where);
5914 insn = bfd_getl32 ((unsigned char *) where);
5915 insn = ppc_insert_operand (insn, operand, (offsetT) value,
5916 fixP->tc_fix_data.ppc_cpu,
5917 fixP->fx_file, fixP->fx_line);
5918 if (target_big_endian)
5919 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5921 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5924 /* Nothing else to do here. */
5927 gas_assert (fixP->fx_addsy != NULL);
5929 /* Determine a BFD reloc value based on the operand information.
5930 We are only prepared to turn a few of the operands into
5932 if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5933 && operand->bitm == 0x3fffffc
5934 && operand->shift == 0)
5935 fixP->fx_r_type = BFD_RELOC_PPC_B26;
5936 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5937 && operand->bitm == 0xfffc
5938 && operand->shift == 0)
5940 fixP->fx_r_type = BFD_RELOC_PPC_B16;
5943 if (target_big_endian)
5944 fixP->fx_where += 2;
5947 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5948 && operand->bitm == 0x3fffffc
5949 && operand->shift == 0)
5950 fixP->fx_r_type = BFD_RELOC_PPC_BA26;
5951 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5952 && operand->bitm == 0xfffc
5953 && operand->shift == 0)
5955 fixP->fx_r_type = BFD_RELOC_PPC_BA16;
5958 if (target_big_endian)
5959 fixP->fx_where += 2;
5962 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5963 else if ((operand->flags & PPC_OPERAND_PARENS) != 0
5964 && (operand->bitm & 0xfff0) == 0xfff0
5965 && operand->shift == 0)
5967 if (ppc_is_toc_sym (fixP->fx_addsy))
5969 fixP->fx_r_type = BFD_RELOC_PPC_TOC16;
5972 && (operand->flags & PPC_OPERAND_DS) != 0)
5973 fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS;
5978 fixP->fx_r_type = BFD_RELOC_16;
5981 && (operand->flags & PPC_OPERAND_DS) != 0)
5982 fixP->fx_r_type = BFD_RELOC_PPC64_ADDR16_DS;
5986 if (target_big_endian)
5987 fixP->fx_where += 2;
5989 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5995 /* Use expr_symbol_where to see if this is an expression
5997 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
5998 as_bad_where (fixP->fx_file, fixP->fx_line,
5999 _("unresolved expression that must be resolved"));
6001 as_bad_where (fixP->fx_file, fixP->fx_line,
6002 _("unsupported relocation against %s"),
6003 S_GET_NAME (fixP->fx_addsy));
6011 ppc_elf_validate_fix (fixP, seg);
6013 switch (fixP->fx_r_type)
6015 case BFD_RELOC_CTOR:
6022 fixP->fx_r_type = BFD_RELOC_32_PCREL;
6026 case BFD_RELOC_32_PCREL:
6027 case BFD_RELOC_PPC_EMB_NADDR32:
6028 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6035 fixP->fx_r_type = BFD_RELOC_64_PCREL;
6038 case BFD_RELOC_64_PCREL:
6039 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6043 case BFD_RELOC_GPREL16:
6044 case BFD_RELOC_16_GOT_PCREL:
6045 case BFD_RELOC_16_GOTOFF:
6046 case BFD_RELOC_LO16_GOTOFF:
6047 case BFD_RELOC_HI16_GOTOFF:
6048 case BFD_RELOC_HI16_S_GOTOFF:
6049 case BFD_RELOC_16_BASEREL:
6050 case BFD_RELOC_LO16_BASEREL:
6051 case BFD_RELOC_HI16_BASEREL:
6052 case BFD_RELOC_HI16_S_BASEREL:
6053 case BFD_RELOC_PPC_EMB_NADDR16:
6054 case BFD_RELOC_PPC_EMB_NADDR16_LO:
6055 case BFD_RELOC_PPC_EMB_NADDR16_HI:
6056 case BFD_RELOC_PPC_EMB_NADDR16_HA:
6057 case BFD_RELOC_PPC_EMB_SDAI16:
6058 case BFD_RELOC_PPC_EMB_SDA2REL:
6059 case BFD_RELOC_PPC_EMB_SDA2I16:
6060 case BFD_RELOC_PPC_EMB_RELSEC16:
6061 case BFD_RELOC_PPC_EMB_RELST_LO:
6062 case BFD_RELOC_PPC_EMB_RELST_HI:
6063 case BFD_RELOC_PPC_EMB_RELST_HA:
6064 case BFD_RELOC_PPC_EMB_RELSDA:
6065 case BFD_RELOC_PPC_TOC16:
6067 case BFD_RELOC_PPC64_TOC16_LO:
6068 case BFD_RELOC_PPC64_TOC16_HI:
6069 case BFD_RELOC_PPC64_TOC16_HA:
6073 if (fixP->fx_addsy != NULL)
6074 as_bad_where (fixP->fx_file, fixP->fx_line,
6075 _("cannot emit PC relative %s relocation against %s"),
6076 bfd_get_reloc_code_name (fixP->fx_r_type),
6077 S_GET_NAME (fixP->fx_addsy));
6079 as_bad_where (fixP->fx_file, fixP->fx_line,
6080 _("cannot emit PC relative %s relocation"),
6081 bfd_get_reloc_code_name (fixP->fx_r_type));
6084 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6090 fixP->fx_r_type = BFD_RELOC_16_PCREL;
6093 case BFD_RELOC_16_PCREL:
6094 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6098 case BFD_RELOC_LO16:
6100 fixP->fx_r_type = BFD_RELOC_LO16_PCREL;
6103 case BFD_RELOC_LO16_PCREL:
6104 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6108 /* This case happens when you write, for example,
6110 where L1 and L2 are defined later. */
6111 case BFD_RELOC_HI16:
6113 fixP->fx_r_type = BFD_RELOC_HI16_PCREL;
6116 case BFD_RELOC_HI16_PCREL:
6117 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6121 case BFD_RELOC_HI16_S:
6123 fixP->fx_r_type = BFD_RELOC_HI16_S_PCREL;
6126 case BFD_RELOC_HI16_S_PCREL:
6127 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6132 case BFD_RELOC_NONE:
6137 case BFD_RELOC_PPC64_HIGHER:
6140 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6141 PPC_HIGHER (value), 2);
6144 case BFD_RELOC_PPC64_HIGHER_S:
6147 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6148 PPC_HIGHERA (value), 2);
6151 case BFD_RELOC_PPC64_HIGHEST:
6154 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6155 PPC_HIGHEST (value), 2);
6158 case BFD_RELOC_PPC64_HIGHEST_S:
6161 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6162 PPC_HIGHESTA (value), 2);
6165 case BFD_RELOC_PPC64_ADDR16_DS:
6166 case BFD_RELOC_PPC64_ADDR16_LO_DS:
6167 case BFD_RELOC_PPC64_GOT16_DS:
6168 case BFD_RELOC_PPC64_GOT16_LO_DS:
6169 case BFD_RELOC_PPC64_PLT16_LO_DS:
6170 case BFD_RELOC_PPC64_SECTOFF_DS:
6171 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
6172 case BFD_RELOC_PPC64_TOC16_DS:
6173 case BFD_RELOC_PPC64_TOC16_LO_DS:
6174 case BFD_RELOC_PPC64_PLTGOT16_DS:
6175 case BFD_RELOC_PPC64_PLTGOT16_LO_DS:
6179 char *where = fixP->fx_frag->fr_literal + fixP->fx_where;
6180 unsigned long val, mask;
6182 if (target_big_endian)
6183 val = bfd_getb32 (where - 2);
6185 val = bfd_getl32 (where);
6187 /* lq insns reserve the four lsbs. */
6188 if ((ppc_cpu & PPC_OPCODE_POWER4) != 0
6189 && (val & (0x3f << 26)) == (56u << 26))
6191 val |= value & mask;
6192 if (target_big_endian)
6193 bfd_putb16 ((bfd_vma) val, where);
6195 bfd_putl16 ((bfd_vma) val, where);
6199 case BFD_RELOC_PPC_B16_BRTAKEN:
6200 case BFD_RELOC_PPC_B16_BRNTAKEN:
6201 case BFD_RELOC_PPC_BA16_BRTAKEN:
6202 case BFD_RELOC_PPC_BA16_BRNTAKEN:
6205 case BFD_RELOC_PPC_TLS:
6206 case BFD_RELOC_PPC_TLSGD:
6207 case BFD_RELOC_PPC_TLSLD:
6210 case BFD_RELOC_PPC_DTPMOD:
6211 case BFD_RELOC_PPC_TPREL16:
6212 case BFD_RELOC_PPC_TPREL16_LO:
6213 case BFD_RELOC_PPC_TPREL16_HI:
6214 case BFD_RELOC_PPC_TPREL16_HA:
6215 case BFD_RELOC_PPC_TPREL:
6216 case BFD_RELOC_PPC_DTPREL16:
6217 case BFD_RELOC_PPC_DTPREL16_LO:
6218 case BFD_RELOC_PPC_DTPREL16_HI:
6219 case BFD_RELOC_PPC_DTPREL16_HA:
6220 case BFD_RELOC_PPC_DTPREL:
6221 case BFD_RELOC_PPC_GOT_TLSGD16:
6222 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
6223 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
6224 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
6225 case BFD_RELOC_PPC_GOT_TLSLD16:
6226 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
6227 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
6228 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
6229 case BFD_RELOC_PPC_GOT_TPREL16:
6230 case BFD_RELOC_PPC_GOT_TPREL16_LO:
6231 case BFD_RELOC_PPC_GOT_TPREL16_HI:
6232 case BFD_RELOC_PPC_GOT_TPREL16_HA:
6233 case BFD_RELOC_PPC_GOT_DTPREL16:
6234 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
6235 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
6236 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
6237 case BFD_RELOC_PPC64_TPREL16_DS:
6238 case BFD_RELOC_PPC64_TPREL16_LO_DS:
6239 case BFD_RELOC_PPC64_TPREL16_HIGHER:
6240 case BFD_RELOC_PPC64_TPREL16_HIGHERA:
6241 case BFD_RELOC_PPC64_TPREL16_HIGHEST:
6242 case BFD_RELOC_PPC64_TPREL16_HIGHESTA:
6243 case BFD_RELOC_PPC64_DTPREL16_DS:
6244 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
6245 case BFD_RELOC_PPC64_DTPREL16_HIGHER:
6246 case BFD_RELOC_PPC64_DTPREL16_HIGHERA:
6247 case BFD_RELOC_PPC64_DTPREL16_HIGHEST:
6248 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA:
6249 S_SET_THREAD_LOCAL (fixP->fx_addsy);
6252 /* Because SDA21 modifies the register field, the size is set to 4
6253 bytes, rather than 2, so offset it here appropriately. */
6254 case BFD_RELOC_PPC_EMB_SDA21:
6258 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where
6259 + ((target_big_endian) ? 2 : 0),
6266 /* This can occur if there is a bug in the input assembler, eg:
6267 ".byte <undefined_symbol> - ." */
6269 as_bad (_("Unable to handle reference to symbol %s"),
6270 S_GET_NAME (fixP->fx_addsy));
6272 as_bad (_("Unable to resolve expression"));
6276 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6280 case BFD_RELOC_24_PLT_PCREL:
6281 case BFD_RELOC_PPC_LOCAL24PC:
6282 if (!fixP->fx_pcrel && !fixP->fx_done)
6290 /* Fetch the instruction, insert the fully resolved operand
6291 value, and stuff the instruction back again. */
6292 where = fixP->fx_frag->fr_literal + fixP->fx_where;
6293 if (target_big_endian)
6294 insn = bfd_getb32 ((unsigned char *) where);
6296 insn = bfd_getl32 ((unsigned char *) where);
6297 if ((value & 3) != 0)
6298 as_bad_where (fixP->fx_file, fixP->fx_line,
6299 _("must branch to an address a multiple of 4"));
6300 if ((offsetT) value < -0x40000000
6301 || (offsetT) value >= 0x40000000)
6302 as_bad_where (fixP->fx_file, fixP->fx_line,
6303 _("@local or @plt branch destination is too far away, %ld bytes"),
6305 insn = insn | (value & 0x03fffffc);
6306 if (target_big_endian)
6307 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
6309 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
6313 case BFD_RELOC_VTABLE_INHERIT:
6316 && !S_IS_DEFINED (fixP->fx_addsy)
6317 && !S_IS_WEAK (fixP->fx_addsy))
6318 S_SET_WEAK (fixP->fx_addsy);
6321 case BFD_RELOC_VTABLE_ENTRY:
6326 /* Generated by reference to `sym@tocbase'. The sym is
6327 ignored by the linker. */
6328 case BFD_RELOC_PPC64_TOC:
6334 _("Gas failure, reloc value %d\n"), fixP->fx_r_type);
6341 fixP->fx_addnumber = value;
6343 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6344 from the section contents. If we are going to be emitting a reloc
6345 then the section contents are immaterial, so don't warn if they
6346 happen to overflow. Leave such warnings to ld. */
6348 fixP->fx_no_overflow = 1;
6350 if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
6351 fixP->fx_addnumber = 0;
6355 fixP->fx_addnumber = 0;
6357 /* We want to use the offset within the toc, not the actual VMA
6359 fixP->fx_addnumber =
6360 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy))
6361 - S_GET_VALUE (ppc_toc_csect);
6367 /* Generate a reloc for a fixup. */
6370 tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
6374 reloc = (arelent *) xmalloc (sizeof (arelent));
6376 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
6377 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
6378 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
6379 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
6380 if (reloc->howto == (reloc_howto_type *) NULL)
6382 as_bad_where (fixp->fx_file, fixp->fx_line,
6383 _("reloc %d not supported by object file format"),
6384 (int) fixp->fx_r_type);
6387 reloc->addend = fixp->fx_addnumber;
6393 ppc_cfi_frame_initial_instructions (void)
6395 cfi_add_CFA_def_cfa (1, 0);
6399 tc_ppc_regname_to_dw2regnum (char *regname)
6401 unsigned int regnum = -1;
6405 static struct { char *name; int dw2regnum; } regnames[] =
6407 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6408 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6409 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6410 { "spe_acc", 111 }, { "spefscr", 112 }
6413 for (i = 0; i < ARRAY_SIZE (regnames); ++i)
6414 if (strcmp (regnames[i].name, regname) == 0)
6415 return regnames[i].dw2regnum;
6417 if (regname[0] == 'r' || regname[0] == 'f' || regname[0] == 'v')
6419 p = regname + 1 + (regname[1] == '.');
6420 regnum = strtoul (p, &q, 10);
6421 if (p == q || *q || regnum >= 32)
6423 if (regname[0] == 'f')
6425 else if (regname[0] == 'v')
6428 else if (regname[0] == 'c' && regname[1] == 'r')
6430 p = regname + 2 + (regname[2] == '.');
6431 if (p[0] < '0' || p[0] > '7' || p[1])
6433 regnum = p[0] - '0' + 68;