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, 2011, 2012
4 Free Software Foundation, Inc.
5 Written by Ian Lance Taylor, Cygnus Support.
7 This file is part of GAS, the GNU Assembler.
9 GAS is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3, or (at your option)
14 GAS is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GAS; see the file COPYING. If not, write to the Free
21 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
25 #include "safe-ctype.h"
27 #include "dw2gencfi.h"
28 #include "opcode/ppc.h"
32 #include "dwarf2dbg.h"
40 #include "coff/xcoff.h"
44 /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
46 /* Tell the main code what the endianness is. */
47 extern int target_big_endian;
49 /* Whether or not, we've set target_big_endian. */
50 static int set_target_endian = 0;
52 /* Whether to use user friendly register names. */
53 #ifndef TARGET_REG_NAMES_P
55 #define TARGET_REG_NAMES_P TRUE
57 #define TARGET_REG_NAMES_P FALSE
61 /* Macros for calculating LO, HI, HA, HIGHER, HIGHERA, HIGHEST,
64 /* #lo(value) denotes the least significant 16 bits of the indicated. */
65 #define PPC_LO(v) ((v) & 0xffff)
67 /* Split the indicated value with the msbs in bits 11-15
68 and the lsbs in bits 21-31. */
69 #define PPC_VLE_SPLIT16A(v) ((v & 0xf800) << 11) | (v & 0x7ff)
71 /* Split the indicated value with the msbs in bits 6-10
72 and the lsbs in bits 21-31. */
73 #define PPC_VLE_SPLIT16D(v) ((v & 0xf800) << 5) | (v & 0x7ff)
75 /* #lo(value) denotes the lsb 16 bits in split16a format. */
76 #define PPC_VLE_LO16A(v) PPC_VLE_SPLIT16A(PPC_LO(v))
78 /* #lo(value) denotes the lsb 16 bits in split16d format. */
79 #define PPC_VLE_LO16D(v) PPC_VLE_SPLIT16D(PPC_LO(v))
81 /* #hi(value) denotes bits 16 through 31 of the indicated value. */
82 #define PPC_HI(v) (((v) >> 16) & 0xffff)
84 /* #lo(value) denotes the msb 16 bits in split16a format. */
85 #define PPC_VLE_HI16A(v) PPC_VLE_SPLIT16A(PPC_HI(v))
87 /* #lo(value) denotes the msb 16 bits in split16d format. */
88 #define PPC_VLE_HI16D(v) PPC_VLE_SPLIT16D(PPC_HI(v))
90 /* #ha(value) denotes the high adjusted value: bits 16 through 31 of
91 the indicated value, compensating for #lo() being treated as a
93 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
95 /* #ha(value) denotes the high adjusted value in split16a format. */
96 #define PPC_VLE_HA16A(v) PPC_VLE_SPLIT16A(PPC_HA(v))
98 /* #ha(value) denotes the high adjusted value in split16d format. */
99 #define PPC_VLE_HA16D(v) PPC_VLE_SPLIT16D(PPC_HA(v))
101 /* #higher(value) denotes bits 32 through 47 of the indicated value. */
102 #define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff)
104 /* #highera(value) denotes bits 32 through 47 of the indicated value,
105 compensating for #lo() being treated as a signed number. */
106 #define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000)
108 /* #highest(value) denotes bits 48 through 63 of the indicated value. */
109 #define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff)
111 /* #highesta(value) denotes bits 48 through 63 of the indicated value,
112 compensating for #lo being treated as a signed number. */
113 #define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000)
115 #define SEX16(val) ((((val) & 0xffff) ^ 0x8000) - 0x8000)
117 static bfd_boolean reg_names_p = TARGET_REG_NAMES_P;
119 static void ppc_macro (char *, const struct powerpc_macro *);
120 static void ppc_byte (int);
122 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
123 static void ppc_tc (int);
124 static void ppc_machine (int);
128 static void ppc_comm (int);
129 static void ppc_bb (int);
130 static void ppc_bc (int);
131 static void ppc_bf (int);
132 static void ppc_biei (int);
133 static void ppc_bs (int);
134 static void ppc_eb (int);
135 static void ppc_ec (int);
136 static void ppc_ef (int);
137 static void ppc_es (int);
138 static void ppc_csect (int);
139 static void ppc_dwsect (int);
140 static void ppc_change_csect (symbolS *, offsetT);
141 static void ppc_function (int);
142 static void ppc_extern (int);
143 static void ppc_lglobl (int);
144 static void ppc_ref (int);
145 static void ppc_section (int);
146 static void ppc_named_section (int);
147 static void ppc_stabx (int);
148 static void ppc_rename (int);
149 static void ppc_toc (int);
150 static void ppc_xcoff_cons (int);
151 static void ppc_vbyte (int);
155 static void ppc_elf_cons (int);
156 static void ppc_elf_rdata (int);
157 static void ppc_elf_lcomm (int);
161 static void ppc_previous (int);
162 static void ppc_pdata (int);
163 static void ppc_ydata (int);
164 static void ppc_reldata (int);
165 static void ppc_rdata (int);
166 static void ppc_ualong (int);
167 static void ppc_znop (int);
168 static void ppc_pe_comm (int);
169 static void ppc_pe_section (int);
170 static void ppc_pe_function (int);
171 static void ppc_pe_tocd (int);
174 /* Generic assembler global variables which must be defined by all
178 /* This string holds the chars that always start a comment. If the
179 pre-processor is disabled, these aren't very useful. The macro
180 tc_comment_chars points to this. We use this, rather than the
181 usual comment_chars, so that we can switch for Solaris conventions. */
182 static const char ppc_solaris_comment_chars[] = "#!";
183 static const char ppc_eabi_comment_chars[] = "#";
185 #ifdef TARGET_SOLARIS_COMMENT
186 const char *ppc_comment_chars = ppc_solaris_comment_chars;
188 const char *ppc_comment_chars = ppc_eabi_comment_chars;
191 const char comment_chars[] = "#";
194 /* Characters which start a comment at the beginning of a line. */
195 const char line_comment_chars[] = "#";
197 /* Characters which may be used to separate multiple commands on a
199 const char line_separator_chars[] = ";";
201 /* Characters which are used to indicate an exponent in a floating
203 const char EXP_CHARS[] = "eE";
205 /* Characters which mean that a number is a floating point constant,
207 const char FLT_CHARS[] = "dD";
209 /* Anything that can start an operand needs to be mentioned here,
210 to stop the input scrubber eating whitespace. */
211 const char ppc_symbol_chars[] = "%[";
213 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
214 int ppc_cie_data_alignment;
216 /* The dwarf2 minimum instruction length. */
217 int ppc_dwarf2_line_min_insn_length;
219 /* More than this number of nops in an alignment op gets a branch
221 unsigned long nop_limit = 4;
223 /* The type of processor we are assembling for. This is one or more
224 of the PPC_OPCODE flags defined in opcode/ppc.h. */
225 ppc_cpu_t ppc_cpu = 0;
226 ppc_cpu_t sticky = 0;
228 /* Flags set on encountering toc relocs. */
230 has_large_toc_reloc = 1,
231 has_small_toc_reloc = 2
234 /* The target specific pseudo-ops which we support. */
236 const pseudo_typeS md_pseudo_table[] =
238 /* Pseudo-ops which must be overridden. */
239 { "byte", ppc_byte, 0 },
242 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
243 legitimately belong in the obj-*.c file. However, XCOFF is based
244 on COFF, and is only implemented for the RS/6000. We just use
245 obj-coff.c, and add what we need here. */
246 { "comm", ppc_comm, 0 },
247 { "lcomm", ppc_comm, 1 },
251 { "bi", ppc_biei, 0 },
253 { "csect", ppc_csect, 0 },
254 { "dwsect", ppc_dwsect, 0 },
255 { "data", ppc_section, 'd' },
259 { "ei", ppc_biei, 1 },
261 { "extern", ppc_extern, 0 },
262 { "function", ppc_function, 0 },
263 { "lglobl", ppc_lglobl, 0 },
264 { "ref", ppc_ref, 0 },
265 { "rename", ppc_rename, 0 },
266 { "section", ppc_named_section, 0 },
267 { "stabx", ppc_stabx, 0 },
268 { "text", ppc_section, 't' },
269 { "toc", ppc_toc, 0 },
270 { "long", ppc_xcoff_cons, 2 },
271 { "llong", ppc_xcoff_cons, 3 },
272 { "word", ppc_xcoff_cons, 1 },
273 { "short", ppc_xcoff_cons, 1 },
274 { "vbyte", ppc_vbyte, 0 },
278 { "llong", ppc_elf_cons, 8 },
279 { "quad", ppc_elf_cons, 8 },
280 { "long", ppc_elf_cons, 4 },
281 { "word", ppc_elf_cons, 2 },
282 { "short", ppc_elf_cons, 2 },
283 { "rdata", ppc_elf_rdata, 0 },
284 { "rodata", ppc_elf_rdata, 0 },
285 { "lcomm", ppc_elf_lcomm, 0 },
289 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
290 { "previous", ppc_previous, 0 },
291 { "pdata", ppc_pdata, 0 },
292 { "ydata", ppc_ydata, 0 },
293 { "reldata", ppc_reldata, 0 },
294 { "rdata", ppc_rdata, 0 },
295 { "ualong", ppc_ualong, 0 },
296 { "znop", ppc_znop, 0 },
297 { "comm", ppc_pe_comm, 0 },
298 { "lcomm", ppc_pe_comm, 1 },
299 { "section", ppc_pe_section, 0 },
300 { "function", ppc_pe_function,0 },
301 { "tocd", ppc_pe_tocd, 0 },
304 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
306 { "machine", ppc_machine, 0 },
313 /* Predefined register names if -mregnames (or default for Windows NT).
314 In general, there are lots of them, in an attempt to be compatible
315 with a number of other Windows NT assemblers. */
317 /* Structure to hold information about predefined registers. */
324 /* List of registers that are pre-defined:
326 Each general register has predefined names of the form:
327 1. r<reg_num> which has the value <reg_num>.
328 2. r.<reg_num> which has the value <reg_num>.
330 Each floating point register has predefined names of the form:
331 1. f<reg_num> which has the value <reg_num>.
332 2. f.<reg_num> which has the value <reg_num>.
334 Each vector unit register has predefined names of the form:
335 1. v<reg_num> which has the value <reg_num>.
336 2. v.<reg_num> which has the value <reg_num>.
338 Each condition register has predefined names of the form:
339 1. cr<reg_num> which has the value <reg_num>.
340 2. cr.<reg_num> which has the value <reg_num>.
342 There are individual registers as well:
343 sp or r.sp has the value 1
344 rtoc or r.toc has the value 2
345 fpscr has the value 0
351 dsisr has the value 18
353 sdr1 has the value 25
354 srr0 has the value 26
355 srr1 has the value 27
357 The table is sorted. Suitable for searching by a binary search. */
359 static const struct pd_reg pre_defined_registers[] =
361 { "cr.0", 0 }, /* Condition Registers */
381 { "dar", 19 }, /* Data Access Register */
382 { "dec", 22 }, /* Decrementer */
383 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
385 { "f.0", 0 }, /* Floating point registers */
412 { "f.32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
478 { "f32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
519 /* Quantization registers used with pair single instructions. */
537 { "lr", 8 }, /* Link Register */
541 { "r.0", 0 }, /* General Purpose Registers */
574 { "r.sp", 1 }, /* Stack Pointer */
576 { "r.toc", 2 }, /* Pointer to the table of contents */
578 { "r0", 0 }, /* More general purpose registers */
611 { "rtoc", 2 }, /* Table of contents */
613 { "sdr1", 25 }, /* Storage Description Register 1 */
617 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
618 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
620 { "v.0", 0 }, /* Vector (Altivec/VMX) registers */
686 { "vs.0", 0 }, /* Vector Scalar (VSX) registers (ISA 2.06). */
820 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
822 /* Given NAME, find the register number associated with that name, return
823 the integer value associated with the given name or -1 on failure. */
826 reg_name_search (const struct pd_reg *regs, int regcount, const char *name)
828 int middle, low, high;
836 middle = (low + high) / 2;
837 cmp = strcasecmp (name, regs[middle].name);
843 return regs[middle].value;
851 * Summary of register_name.
853 * in: Input_line_pointer points to 1st char of operand.
855 * out: A expressionS.
856 * The operand may have been a register: in this case, X_op == O_register,
857 * X_add_number is set to the register number, and truth is returned.
858 * Input_line_pointer->(next non-blank) char after operand, or is in its
863 register_name (expressionS *expressionP)
870 /* Find the spelling of the operand. */
871 start = name = input_line_pointer;
872 if (name[0] == '%' && ISALPHA (name[1]))
873 name = ++input_line_pointer;
875 else if (!reg_names_p || !ISALPHA (name[0]))
878 c = get_symbol_end ();
879 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
881 /* Put back the delimiting char. */
882 *input_line_pointer = c;
884 /* Look to see if it's in the register table. */
887 expressionP->X_op = O_register;
888 expressionP->X_add_number = reg_number;
890 /* Make the rest nice. */
891 expressionP->X_add_symbol = NULL;
892 expressionP->X_op_symbol = NULL;
896 /* Reset the line as if we had not done anything. */
897 input_line_pointer = start;
901 /* This function is called for each symbol seen in an expression. It
902 handles the special parsing which PowerPC assemblers are supposed
903 to use for condition codes. */
905 /* Whether to do the special parsing. */
906 static bfd_boolean cr_operand;
908 /* Names to recognize in a condition code. This table is sorted. */
909 static const struct pd_reg cr_names[] =
926 /* Parsing function. This returns non-zero if it recognized an
930 ppc_parse_name (const char *name, expressionS *exp)
939 val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0],
944 exp->X_op = O_constant;
945 exp->X_add_number = val;
950 /* Local variables. */
952 /* Whether to target xcoff64/elf64. */
953 static unsigned int ppc_obj64 = BFD_DEFAULT_TARGET_SIZE == 64;
955 /* Opcode hash table. */
956 static struct hash_control *ppc_hash;
958 /* Macro hash table. */
959 static struct hash_control *ppc_macro_hash;
962 /* What type of shared library support to use. */
963 static enum { SHLIB_NONE, SHLIB_PIC, SHLIB_MRELOCATABLE } shlib = SHLIB_NONE;
965 /* Flags to set in the elf header. */
966 static flagword ppc_flags = 0;
968 /* Whether this is Solaris or not. */
969 #ifdef TARGET_SOLARIS_COMMENT
970 #define SOLARIS_P TRUE
972 #define SOLARIS_P FALSE
975 static bfd_boolean msolaris = SOLARIS_P;
980 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
981 using a bunch of different sections. These assembler sections,
982 however, are all encompassed within the .text or .data sections of
983 the final output file. We handle this by using different
984 subsegments within these main segments. */
986 /* Next subsegment to allocate within the .text segment. */
987 static subsegT ppc_text_subsegment = 2;
989 /* Linked list of csects in the text section. */
990 static symbolS *ppc_text_csects;
992 /* Next subsegment to allocate within the .data segment. */
993 static subsegT ppc_data_subsegment = 2;
995 /* Linked list of csects in the data section. */
996 static symbolS *ppc_data_csects;
998 /* The current csect. */
999 static symbolS *ppc_current_csect;
1001 /* The RS/6000 assembler uses a TOC which holds addresses of functions
1002 and variables. Symbols are put in the TOC with the .tc pseudo-op.
1003 A special relocation is used when accessing TOC entries. We handle
1004 the TOC as a subsegment within the .data segment. We set it up if
1005 we see a .toc pseudo-op, and save the csect symbol here. */
1006 static symbolS *ppc_toc_csect;
1008 /* The first frag in the TOC subsegment. */
1009 static fragS *ppc_toc_frag;
1011 /* The first frag in the first subsegment after the TOC in the .data
1012 segment. NULL if there are no subsegments after the TOC. */
1013 static fragS *ppc_after_toc_frag;
1015 /* The current static block. */
1016 static symbolS *ppc_current_block;
1018 /* The COFF debugging section; set by md_begin. This is not the
1019 .debug section, but is instead the secret BFD section which will
1020 cause BFD to set the section number of a symbol to N_DEBUG. */
1021 static asection *ppc_coff_debug_section;
1023 /* Structure to set the length field of the dwarf sections. */
1024 struct dw_subsection {
1025 /* Subsections are simply linked. */
1026 struct dw_subsection *link;
1028 /* The subsection number. */
1031 /* Expression to compute the length of the section. */
1032 expressionS end_exp;
1035 static struct dw_section {
1036 /* Corresponding section. */
1039 /* Simply linked list of subsections with a label. */
1040 struct dw_subsection *list_subseg;
1042 /* The anonymous subsection. */
1043 struct dw_subsection *anon_subseg;
1044 } dw_sections[XCOFF_DWSECT_NBR_NAMES];
1045 #endif /* OBJ_XCOFF */
1049 /* Various sections that we need for PE coff support. */
1050 static segT ydata_section;
1051 static segT pdata_section;
1052 static segT reldata_section;
1053 static segT rdata_section;
1054 static segT tocdata_section;
1056 /* The current section and the previous section. See ppc_previous. */
1057 static segT ppc_previous_section;
1058 static segT ppc_current_section;
1063 symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
1064 #define PPC_APUINFO_ISEL 0x40
1065 #define PPC_APUINFO_PMR 0x41
1066 #define PPC_APUINFO_RFMCI 0x42
1067 #define PPC_APUINFO_CACHELCK 0x43
1068 #define PPC_APUINFO_SPE 0x100
1069 #define PPC_APUINFO_EFS 0x101
1070 #define PPC_APUINFO_BRLOCK 0x102
1071 #define PPC_APUINFO_VLE 0x104
1074 * We keep a list of APUinfo
1076 unsigned long *ppc_apuinfo_list;
1077 unsigned int ppc_apuinfo_num;
1078 unsigned int ppc_apuinfo_num_alloc;
1079 #endif /* OBJ_ELF */
1082 const char *const md_shortopts = "b:l:usm:K:VQ:";
1084 const char *const md_shortopts = "um:";
1086 #define OPTION_NOPS (OPTION_MD_BASE + 0)
1087 const struct option md_longopts[] = {
1088 {"nops", required_argument, NULL, OPTION_NOPS},
1089 {NULL, no_argument, NULL, 0}
1091 const size_t md_longopts_size = sizeof (md_longopts);
1094 md_parse_option (int c, char *arg)
1101 /* -u means that any undefined symbols should be treated as
1102 external, which is the default for gas anyhow. */
1107 /* Solaris as takes -le (presumably for little endian). For completeness
1108 sake, recognize -be also. */
1109 if (strcmp (arg, "e") == 0)
1111 target_big_endian = 0;
1112 set_target_endian = 1;
1113 if (ppc_cpu & PPC_OPCODE_VLE)
1114 as_bad (_("the use of -mvle requires big endian."));
1122 if (strcmp (arg, "e") == 0)
1124 target_big_endian = 1;
1125 set_target_endian = 1;
1133 /* Recognize -K PIC. */
1134 if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
1137 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1145 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
1147 if (strcmp (arg, "64") == 0)
1151 if (ppc_cpu & PPC_OPCODE_VLE)
1152 as_bad (_("the use of -mvle requires -a32."));
1154 as_fatal (_("%s unsupported"), "-a64");
1157 else if (strcmp (arg, "32") == 0)
1164 new_cpu = ppc_parse_cpu (ppc_cpu, &sticky, arg);
1168 if (strcmp (arg, "vle") == 0)
1170 if (set_target_endian && target_big_endian == 0)
1171 as_bad (_("the use of -mvle requires big endian."));
1173 as_bad (_("the use of -mvle requires -a32."));
1177 else if (strcmp (arg, "regnames") == 0)
1180 else if (strcmp (arg, "no-regnames") == 0)
1181 reg_names_p = FALSE;
1184 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1185 that require relocation. */
1186 else if (strcmp (arg, "relocatable") == 0)
1188 shlib = SHLIB_MRELOCATABLE;
1189 ppc_flags |= EF_PPC_RELOCATABLE;
1192 else if (strcmp (arg, "relocatable-lib") == 0)
1194 shlib = SHLIB_MRELOCATABLE;
1195 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1198 /* -memb, set embedded bit. */
1199 else if (strcmp (arg, "emb") == 0)
1200 ppc_flags |= EF_PPC_EMB;
1202 /* -mlittle/-mbig set the endianness. */
1203 else if (strcmp (arg, "little") == 0
1204 || strcmp (arg, "little-endian") == 0)
1206 target_big_endian = 0;
1207 set_target_endian = 1;
1208 if (ppc_cpu & PPC_OPCODE_VLE)
1209 as_bad (_("the use of -mvle requires big endian."));
1212 else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0)
1214 target_big_endian = 1;
1215 set_target_endian = 1;
1218 else if (strcmp (arg, "solaris") == 0)
1221 ppc_comment_chars = ppc_solaris_comment_chars;
1224 else if (strcmp (arg, "no-solaris") == 0)
1227 ppc_comment_chars = ppc_eabi_comment_chars;
1232 as_bad (_("invalid switch -m%s"), arg);
1238 /* -V: SVR4 argument to print version ID. */
1240 print_version_id ();
1243 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1244 should be emitted or not. FIXME: Not implemented. */
1248 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1249 rather than .stabs.excl, which is ignored by the linker.
1250 FIXME: Not implemented. */
1261 nop_limit = strtoul (optarg, &end, 0);
1263 as_bad (_("--nops needs a numeric argument"));
1275 md_show_usage (FILE *stream)
1277 fprintf (stream, _("\
1279 -a32 generate ELF32/XCOFF32\n\
1280 -a64 generate ELF64/XCOFF64\n\
1282 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1283 -mpwr generate code for POWER (RIOS1)\n\
1284 -m601 generate code for PowerPC 601\n\
1285 -mppc, -mppc32, -m603, -m604\n\
1286 generate code for PowerPC 603/604\n\
1287 -m403 generate code for PowerPC 403\n\
1288 -m405 generate code for PowerPC 405\n\
1289 -m440 generate code for PowerPC 440\n\
1290 -m464 generate code for PowerPC 464\n\
1291 -m476 generate code for PowerPC 476\n\
1292 -m7400, -m7410, -m7450, -m7455\n\
1293 generate code for PowerPC 7400/7410/7450/7455\n\
1294 -m750cl generate code for PowerPC 750cl\n"));
1295 fprintf (stream, _("\
1296 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1297 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1298 -mbooke generate code for 32-bit PowerPC BookE\n\
1299 -ma2 generate code for A2 architecture\n\
1300 -mpower4, -mpwr4 generate code for Power4 architecture\n\
1301 -mpower5, -mpwr5, -mpwr5x\n\
1302 generate code for Power5 architecture\n\
1303 -mpower6, -mpwr6 generate code for Power6 architecture\n\
1304 -mpower7, -mpwr7 generate code for Power7 architecture\n\
1305 -mcell generate code for Cell Broadband Engine architecture\n\
1306 -mcom generate code Power/PowerPC common instructions\n\
1307 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1308 fprintf (stream, _("\
1309 -maltivec generate code for AltiVec\n\
1310 -mvsx generate code for Vector-Scalar (VSX) instructions\n\
1311 -me300 generate code for PowerPC e300 family\n\
1312 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1313 -me500mc, generate code for Freescale e500mc core complex\n\
1314 -me500mc64, generate code for Freescale e500mc64 core complex\n\
1315 -me5500, generate code for Freescale e5500 core complex\n\
1316 -me6500, generate code for Freescale e6500 core complex\n\
1317 -mspe generate code for Motorola SPE instructions\n\
1318 -mvle generate code for Freescale VLE instructions\n\
1319 -mtitan generate code for AppliedMicro Titan core complex\n\
1320 -mregnames Allow symbolic names for registers\n\
1321 -mno-regnames Do not allow symbolic names for registers\n"));
1323 fprintf (stream, _("\
1324 -mrelocatable support for GCC's -mrelocatble option\n\
1325 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1326 -memb set PPC_EMB bit in ELF flags\n\
1327 -mlittle, -mlittle-endian, -le\n\
1328 generate code for a little endian machine\n\
1329 -mbig, -mbig-endian, -be\n\
1330 generate code for a big endian machine\n\
1331 -msolaris generate code for Solaris\n\
1332 -mno-solaris do not generate code for Solaris\n\
1333 -K PIC set EF_PPC_RELOCATABLE_LIB in ELF flags\n\
1334 -V print assembler version number\n\
1335 -Qy, -Qn ignored\n"));
1337 fprintf (stream, _("\
1338 -nops=count when aligning, more than COUNT nops uses a branch\n"));
1341 /* Set ppc_cpu if it is not already set. */
1346 const char *default_os = TARGET_OS;
1347 const char *default_cpu = TARGET_CPU;
1349 if ((ppc_cpu & ~(ppc_cpu_t) PPC_OPCODE_ANY) == 0)
1352 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_64;
1353 else if (strncmp (default_os, "aix", 3) == 0
1354 && default_os[3] >= '4' && default_os[3] <= '9')
1355 ppc_cpu |= PPC_OPCODE_COMMON;
1356 else if (strncmp (default_os, "aix3", 4) == 0)
1357 ppc_cpu |= PPC_OPCODE_POWER;
1358 else if (strcmp (default_cpu, "rs6000") == 0)
1359 ppc_cpu |= PPC_OPCODE_POWER;
1360 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1361 ppc_cpu |= PPC_OPCODE_PPC;
1363 as_fatal (_("unknown default cpu = %s, os = %s"),
1364 default_cpu, default_os);
1368 /* Figure out the BFD architecture to use. This function and ppc_mach
1369 are called well before md_begin, when the output file is opened. */
1371 enum bfd_architecture
1374 const char *default_cpu = TARGET_CPU;
1377 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1378 return bfd_arch_powerpc;
1379 if ((ppc_cpu & PPC_OPCODE_VLE) != 0)
1380 return bfd_arch_powerpc;
1381 if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1382 return bfd_arch_rs6000;
1383 if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1385 if (strcmp (default_cpu, "rs6000") == 0)
1386 return bfd_arch_rs6000;
1387 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1388 return bfd_arch_powerpc;
1391 as_fatal (_("neither Power nor PowerPC opcodes were selected."));
1392 return bfd_arch_unknown;
1399 return bfd_mach_ppc64;
1400 else if (ppc_arch () == bfd_arch_rs6000)
1401 return bfd_mach_rs6k;
1402 else if (ppc_cpu & PPC_OPCODE_TITAN)
1403 return bfd_mach_ppc_titan;
1404 else if (ppc_cpu & PPC_OPCODE_VLE)
1405 return bfd_mach_ppc_vle;
1407 return bfd_mach_ppc;
1411 ppc_target_format (void)
1415 return target_big_endian ? "pe-powerpc" : "pe-powerpcle";
1417 return "xcoff-powermac";
1420 return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000");
1422 return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000");
1428 return (ppc_obj64 ? "elf64-powerpc-freebsd" : "elf32-powerpc-freebsd");
1429 # elif defined (TE_VXWORKS)
1430 return "elf32-powerpc-vxworks";
1432 return (target_big_endian
1433 ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc")
1434 : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle"));
1439 /* Validate one entry in powerpc_opcodes[] or vle_opcodes[].
1440 Return TRUE if there's a problem, otherwise FALSE. */
1443 insn_validate (const struct powerpc_opcode *op)
1445 const unsigned char *o;
1446 unsigned long omask = op->mask;
1448 /* The mask had better not trim off opcode bits. */
1449 if ((op->opcode & omask) != op->opcode)
1451 as_bad (_("mask trims opcode bits for %s"), op->name);
1455 /* The operands must not overlap the opcode or each other. */
1456 for (o = op->operands; *o; ++o)
1458 if (*o >= num_powerpc_operands)
1460 as_bad (_("operand index error for %s"), op->name);
1465 const struct powerpc_operand *operand = &powerpc_operands[*o];
1466 if (operand->shift != PPC_OPSHIFT_INV)
1470 if (operand->shift >= 0)
1471 mask = operand->bitm << operand->shift;
1473 mask = operand->bitm >> -operand->shift;
1476 as_bad (_("operand %d overlap in %s"),
1477 (int) (o - op->operands), op->name);
1487 /* Insert opcodes and macros into hash tables. Called at startup and
1488 for .machine pseudo. */
1491 ppc_setup_opcodes (void)
1493 const struct powerpc_opcode *op;
1494 const struct powerpc_opcode *op_end;
1495 const struct powerpc_macro *macro;
1496 const struct powerpc_macro *macro_end;
1497 bfd_boolean bad_insn = FALSE;
1499 if (ppc_hash != NULL)
1500 hash_die (ppc_hash);
1501 if (ppc_macro_hash != NULL)
1502 hash_die (ppc_macro_hash);
1504 /* Insert the opcodes into a hash table. */
1505 ppc_hash = hash_new ();
1507 if (ENABLE_CHECKING)
1511 /* An index into powerpc_operands is stored in struct fix
1512 fx_pcrel_adjust which is 8 bits wide. */
1513 gas_assert (num_powerpc_operands < 256);
1515 /* Check operand masks. Code here and in the disassembler assumes
1516 all the 1's in the mask are contiguous. */
1517 for (i = 0; i < num_powerpc_operands; ++i)
1519 unsigned long mask = powerpc_operands[i].bitm;
1520 unsigned long right_bit;
1523 right_bit = mask & -mask;
1525 right_bit = mask & -mask;
1526 if (mask != right_bit)
1528 as_bad (_("powerpc_operands[%d].bitm invalid"), i);
1531 for (j = i + 1; j < num_powerpc_operands; ++j)
1532 if (memcmp (&powerpc_operands[i], &powerpc_operands[j],
1533 sizeof (powerpc_operands[0])) == 0)
1535 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1542 op_end = powerpc_opcodes + powerpc_num_opcodes;
1543 for (op = powerpc_opcodes; op < op_end; op++)
1545 if (ENABLE_CHECKING)
1547 if (op != powerpc_opcodes)
1549 int old_opcode = PPC_OP (op[-1].opcode);
1550 int new_opcode = PPC_OP (op[0].opcode);
1552 #ifdef PRINT_OPCODE_TABLE
1553 printf ("%-14s\t#%04d\tmajor op: 0x%x\top: 0x%x\tmask: 0x%x\tflags: 0x%llx\n",
1554 op->name, op - powerpc_opcodes, (unsigned int) new_opcode,
1555 (unsigned int) op->opcode, (unsigned int) op->mask,
1556 (unsigned long long) op->flags);
1559 /* The major opcodes had better be sorted. Code in the
1560 disassembler assumes the insns are sorted according to
1562 if (new_opcode < old_opcode)
1564 as_bad (_("major opcode is not sorted for %s"),
1569 bad_insn |= insn_validate (op);
1572 if ((ppc_cpu & op->flags) != 0
1573 && !(ppc_cpu & op->deprecated))
1577 retval = hash_insert (ppc_hash, op->name, (void *) op);
1580 as_bad (_("duplicate instruction %s"),
1587 if ((ppc_cpu & PPC_OPCODE_ANY) != 0)
1588 for (op = powerpc_opcodes; op < op_end; op++)
1589 hash_insert (ppc_hash, op->name, (void *) op);
1591 op_end = vle_opcodes + vle_num_opcodes;
1592 for (op = vle_opcodes; op < op_end; op++)
1594 if (ENABLE_CHECKING)
1596 if (op != vle_opcodes)
1598 unsigned old_seg, new_seg;
1600 old_seg = VLE_OP (op[-1].opcode, op[-1].mask);
1601 old_seg = VLE_OP_TO_SEG (old_seg);
1602 new_seg = VLE_OP (op[0].opcode, op[0].mask);
1603 new_seg = VLE_OP_TO_SEG (new_seg);
1605 #ifdef PRINT_OPCODE_TABLE
1606 printf ("%-14s\t#%04d\tmajor op: 0x%x\top: 0x%x\tmask: 0x%x\tflags: 0x%llx\n",
1607 op->name, op - powerpc_opcodes, (unsigned int) new_opcode,
1608 (unsigned int) op->opcode, (unsigned int) op->mask,
1609 (unsigned long long) op->flags);
1611 /* The major opcodes had better be sorted. Code in the
1612 disassembler assumes the insns are sorted according to
1614 if (new_seg < old_seg)
1616 as_bad (_("major opcode is not sorted for %s"),
1622 bad_insn |= insn_validate (op);
1625 if ((ppc_cpu & op->flags) != 0
1626 && !(ppc_cpu & op->deprecated))
1630 retval = hash_insert (ppc_hash, op->name, (void *) op);
1633 as_bad (_("duplicate instruction %s"),
1640 if ((ppc_cpu & PPC_OPCODE_VLE) != 0)
1641 for (op = vle_opcodes; op < op_end; op++)
1642 hash_insert (ppc_hash, op->name, (void *) op);
1644 /* Insert the macros into a hash table. */
1645 ppc_macro_hash = hash_new ();
1647 macro_end = powerpc_macros + powerpc_num_macros;
1648 for (macro = powerpc_macros; macro < macro_end; macro++)
1650 if ((macro->flags & ppc_cpu) != 0 || (ppc_cpu & PPC_OPCODE_ANY) != 0)
1654 retval = hash_insert (ppc_macro_hash, macro->name, (void *) macro);
1655 if (retval != (const char *) NULL)
1657 as_bad (_("duplicate macro %s"), macro->name);
1667 /* This function is called when the assembler starts up. It is called
1668 after the options have been parsed and the output file has been
1676 ppc_cie_data_alignment = ppc_obj64 ? -8 : -4;
1677 ppc_dwarf2_line_min_insn_length = (ppc_cpu & PPC_OPCODE_VLE) ? 2 : 4;
1680 /* Set the ELF flags if desired. */
1681 if (ppc_flags && !msolaris)
1682 bfd_set_private_flags (stdoutput, ppc_flags);
1685 ppc_setup_opcodes ();
1687 /* Tell the main code what the endianness is if it is not overridden
1689 if (!set_target_endian)
1691 set_target_endian = 1;
1692 target_big_endian = PPC_BIG_ENDIAN;
1696 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1698 /* Create dummy symbols to serve as initial csects. This forces the
1699 text csects to precede the data csects. These symbols will not
1701 ppc_text_csects = symbol_make ("dummy\001");
1702 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
1703 ppc_data_csects = symbol_make ("dummy\001");
1704 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
1709 ppc_current_section = text_section;
1710 ppc_previous_section = 0;
1719 if (ppc_apuinfo_list == NULL)
1722 /* Ok, so write the section info out. We have this layout:
1726 0 8 length of "APUinfo\0"
1727 4 (n*4) number of APU's (4 bytes each)
1730 20 APU#1 first APU's info
1731 24 APU#2 second APU's info
1736 asection *seg = now_seg;
1737 subsegT subseg = now_subseg;
1738 asection *apuinfo_secp = (asection *) NULL;
1741 /* Create the .PPC.EMB.apuinfo section. */
1742 apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0);
1743 bfd_set_section_flags (stdoutput,
1745 SEC_HAS_CONTENTS | SEC_READONLY);
1748 md_number_to_chars (p, (valueT) 8, 4);
1751 md_number_to_chars (p, (valueT) ppc_apuinfo_num * 4, 4);
1754 md_number_to_chars (p, (valueT) 2, 4);
1757 strcpy (p, "APUinfo");
1759 for (i = 0; i < ppc_apuinfo_num; i++)
1762 md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4);
1765 frag_align (2, 0, 0);
1767 /* We probably can't restore the current segment, for there likely
1770 subseg_set (seg, subseg);
1775 /* Insert an operand value into an instruction. */
1777 static unsigned long
1778 ppc_insert_operand (unsigned long insn,
1779 const struct powerpc_operand *operand,
1785 long min, max, right;
1787 max = operand->bitm;
1791 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1793 if ((operand->flags & PPC_OPERAND_SIGNOPT) == 0)
1794 max = (max >> 1) & -right;
1795 min = ~max & -right;
1798 if ((operand->flags & PPC_OPERAND_PLUS1) != 0)
1801 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1810 /* Some people write constants with the sign extension done by
1811 hand but only up to 32 bits. This shouldn't really be valid,
1812 but, to permit this code to assemble on a 64-bit host, we
1813 sign extend the 32-bit value to 64 bits if so doing makes the
1816 && (offsetT) (val - 0x80000000 - 0x80000000) >= min
1817 && (offsetT) (val - 0x80000000 - 0x80000000) <= max
1818 && ((val - 0x80000000 - 0x80000000) & (right - 1)) == 0)
1819 val = val - 0x80000000 - 0x80000000;
1821 /* Similarly, people write expressions like ~(1<<15), and expect
1822 this to be OK for a 32-bit unsigned value. */
1824 && (offsetT) (val + 0x80000000 + 0x80000000) >= min
1825 && (offsetT) (val + 0x80000000 + 0x80000000) <= max
1826 && ((val + 0x80000000 + 0x80000000) & (right - 1)) == 0)
1827 val = val + 0x80000000 + 0x80000000;
1831 || (val & (right - 1)) != 0)
1832 as_bad_value_out_of_range (_("operand"), val, min, max, file, line);
1835 if (operand->insert)
1840 insn = (*operand->insert) (insn, (long) val, cpu, &errmsg);
1841 if (errmsg != (const char *) NULL)
1842 as_bad_where (file, line, "%s", errmsg);
1844 else if (operand->shift >= 0)
1845 insn |= ((long) val & operand->bitm) << operand->shift;
1847 insn |= ((long) val & operand->bitm) >> -operand->shift;
1854 /* Parse @got, etc. and return the desired relocation. */
1855 static bfd_reloc_code_real_type
1856 ppc_elf_suffix (char **str_p, expressionS *exp_p)
1860 unsigned int length : 8;
1861 unsigned int valid32 : 1;
1862 unsigned int valid64 : 1;
1871 const struct map_bfd *ptr;
1873 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1874 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1875 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1877 static const struct map_bfd mapping[] = {
1878 MAP ("l", BFD_RELOC_LO16),
1879 MAP ("h", BFD_RELOC_HI16),
1880 MAP ("ha", BFD_RELOC_HI16_S),
1881 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN),
1882 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN),
1883 MAP ("got", BFD_RELOC_16_GOTOFF),
1884 MAP ("got@l", BFD_RELOC_LO16_GOTOFF),
1885 MAP ("got@h", BFD_RELOC_HI16_GOTOFF),
1886 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF),
1887 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF),
1888 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF),
1889 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF),
1890 MAP ("copy", BFD_RELOC_PPC_COPY),
1891 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT),
1892 MAP ("sectoff", BFD_RELOC_16_BASEREL),
1893 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL),
1894 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL),
1895 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL),
1896 MAP ("tls", BFD_RELOC_PPC_TLS),
1897 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD),
1898 MAP ("dtprel", BFD_RELOC_PPC_DTPREL),
1899 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO),
1900 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI),
1901 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA),
1902 MAP ("tprel", BFD_RELOC_PPC_TPREL),
1903 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO),
1904 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI),
1905 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA),
1906 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16),
1907 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO),
1908 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI),
1909 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA),
1910 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16),
1911 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO),
1912 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI),
1913 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA),
1914 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16),
1915 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO),
1916 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI),
1917 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA),
1918 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16),
1919 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO),
1920 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI),
1921 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA),
1922 MAP32 ("fixup", BFD_RELOC_CTOR),
1923 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL),
1924 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL),
1925 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC),
1926 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC),
1927 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL),
1928 MAP32 ("sdarel", BFD_RELOC_GPREL16),
1929 MAP32 ("sdarel@l", BFD_RELOC_PPC_VLE_SDAREL_LO16A),
1930 MAP32 ("sdarel@h", BFD_RELOC_PPC_VLE_SDAREL_HI16A),
1931 MAP32 ("sdarel@ha", BFD_RELOC_PPC_VLE_SDAREL_HA16A),
1932 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32),
1933 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16),
1934 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO),
1935 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI),
1936 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA),
1937 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16),
1938 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL),
1939 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16),
1940 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21),
1941 MAP32 ("sda21@l", BFD_RELOC_PPC_VLE_SDA21_LO),
1942 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF),
1943 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16),
1944 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO),
1945 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI),
1946 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA),
1947 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD),
1948 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA),
1949 MAP32 ("xgot", BFD_RELOC_PPC_TOC16),
1950 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER),
1951 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S),
1952 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST),
1953 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S),
1954 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC),
1955 MAP64 ("toc", BFD_RELOC_PPC_TOC16),
1956 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO),
1957 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI),
1958 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA),
1959 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER),
1960 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA),
1961 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST),
1962 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA),
1963 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER),
1964 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA),
1965 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST),
1966 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA),
1967 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED }
1971 return BFD_RELOC_UNUSED;
1973 for (ch = *str, str2 = ident;
1974 (str2 < ident + sizeof (ident) - 1
1975 && (ISALNUM (ch) || ch == '@'));
1978 *str2++ = TOLOWER (ch);
1985 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
1986 if (ch == ptr->string[0]
1987 && len == ptr->length
1988 && memcmp (ident, ptr->string, ptr->length) == 0
1989 && (ppc_obj64 ? ptr->valid64 : ptr->valid32))
1991 int reloc = ptr->reloc;
1993 if (!ppc_obj64 && exp_p->X_add_number != 0)
1997 case BFD_RELOC_16_GOTOFF:
1998 case BFD_RELOC_LO16_GOTOFF:
1999 case BFD_RELOC_HI16_GOTOFF:
2000 case BFD_RELOC_HI16_S_GOTOFF:
2001 as_warn (_("identifier+constant@got means "
2002 "identifier@got+constant"));
2005 case BFD_RELOC_PPC_GOT_TLSGD16:
2006 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
2007 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
2008 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
2009 case BFD_RELOC_PPC_GOT_TLSLD16:
2010 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
2011 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
2012 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
2013 case BFD_RELOC_PPC_GOT_DTPREL16:
2014 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
2015 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
2016 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
2017 case BFD_RELOC_PPC_GOT_TPREL16:
2018 case BFD_RELOC_PPC_GOT_TPREL16_LO:
2019 case BFD_RELOC_PPC_GOT_TPREL16_HI:
2020 case BFD_RELOC_PPC_GOT_TPREL16_HA:
2021 as_bad (_("symbol+offset not supported for got tls"));
2026 /* Now check for identifier@suffix+constant. */
2027 if (*str == '-' || *str == '+')
2029 char *orig_line = input_line_pointer;
2030 expressionS new_exp;
2032 input_line_pointer = str;
2033 expression (&new_exp);
2034 if (new_exp.X_op == O_constant)
2036 exp_p->X_add_number += new_exp.X_add_number;
2037 str = input_line_pointer;
2040 if (&input_line_pointer != str_p)
2041 input_line_pointer = orig_line;
2045 if (reloc == (int) BFD_RELOC_PPC64_TOC
2046 && exp_p->X_op == O_symbol
2047 && strcmp (S_GET_NAME (exp_p->X_add_symbol), ".TOC.") == 0)
2049 /* Change the symbol so that the dummy .TOC. symbol can be
2050 omitted from the object file. */
2051 exp_p->X_add_symbol = &abs_symbol;
2054 return (bfd_reloc_code_real_type) reloc;
2057 return BFD_RELOC_UNUSED;
2060 /* Like normal .long/.short/.word, except support @got, etc.
2061 Clobbers input_line_pointer, checks end-of-line. */
2063 ppc_elf_cons (int nbytes /* 1=.byte, 2=.word, 4=.long, 8=.llong */)
2066 bfd_reloc_code_real_type reloc;
2068 if (is_it_end_of_statement ())
2070 demand_empty_rest_of_line ();
2077 if (exp.X_op == O_symbol
2078 && *input_line_pointer == '@'
2079 && (reloc = ppc_elf_suffix (&input_line_pointer,
2080 &exp)) != BFD_RELOC_UNUSED)
2082 reloc_howto_type *reloc_howto;
2085 reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
2086 size = bfd_get_reloc_size (reloc_howto);
2090 as_bad (_("%s relocations do not fit in %d bytes\n"),
2091 reloc_howto->name, nbytes);
2098 p = frag_more (nbytes);
2099 memset (p, 0, nbytes);
2101 if (target_big_endian)
2102 offset = nbytes - size;
2103 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
2108 emit_expr (&exp, (unsigned int) nbytes);
2110 while (*input_line_pointer++ == ',');
2112 /* Put terminator back into stream. */
2113 input_line_pointer--;
2114 demand_empty_rest_of_line ();
2117 /* Solaris pseduo op to change to the .rodata section. */
2119 ppc_elf_rdata (int xxx)
2121 char *save_line = input_line_pointer;
2122 static char section[] = ".rodata\n";
2124 /* Just pretend this is .section .rodata */
2125 input_line_pointer = section;
2126 obj_elf_section (xxx);
2128 input_line_pointer = save_line;
2131 /* Pseudo op to make file scope bss items. */
2133 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED)
2146 name = input_line_pointer;
2147 c = get_symbol_end ();
2149 /* just after name is now '\0'. */
2150 p = input_line_pointer;
2153 if (*input_line_pointer != ',')
2155 as_bad (_("expected comma after symbol-name: rest of line ignored."));
2156 ignore_rest_of_line ();
2160 input_line_pointer++; /* skip ',' */
2161 if ((size = get_absolute_expression ()) < 0)
2163 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
2164 ignore_rest_of_line ();
2168 /* The third argument to .lcomm is the alignment. */
2169 if (*input_line_pointer != ',')
2173 ++input_line_pointer;
2174 align = get_absolute_expression ();
2177 as_warn (_("ignoring bad alignment"));
2183 symbolP = symbol_find_or_make (name);
2186 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
2188 as_bad (_("ignoring attempt to re-define symbol `%s'."),
2189 S_GET_NAME (symbolP));
2190 ignore_rest_of_line ();
2194 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
2196 as_bad (_("length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
2197 S_GET_NAME (symbolP),
2198 (long) S_GET_VALUE (symbolP),
2201 ignore_rest_of_line ();
2207 old_subsec = now_subseg;
2210 /* Convert to a power of 2 alignment. */
2211 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
2214 as_bad (_("common alignment not a power of 2"));
2215 ignore_rest_of_line ();
2222 record_alignment (bss_section, align2);
2223 subseg_set (bss_section, 0);
2225 frag_align (align2, 0, 0);
2226 if (S_GET_SEGMENT (symbolP) == bss_section)
2227 symbol_get_frag (symbolP)->fr_symbol = 0;
2228 symbol_set_frag (symbolP, frag_now);
2229 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
2232 S_SET_SIZE (symbolP, size);
2233 S_SET_SEGMENT (symbolP, bss_section);
2234 subseg_set (old_sec, old_subsec);
2235 demand_empty_rest_of_line ();
2238 /* Validate any relocations emitted for -mrelocatable, possibly adding
2239 fixups for word relocations in writable segments, so we can adjust
2242 ppc_elf_validate_fix (fixS *fixp, segT seg)
2244 if (fixp->fx_done || fixp->fx_pcrel)
2253 case SHLIB_MRELOCATABLE:
2254 if (fixp->fx_r_type <= BFD_RELOC_UNUSED
2255 && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
2256 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
2257 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
2258 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
2259 && fixp->fx_r_type != BFD_RELOC_16_BASEREL
2260 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
2261 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
2262 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
2263 && (seg->flags & SEC_LOAD) != 0
2264 && strcmp (segment_name (seg), ".got2") != 0
2265 && strcmp (segment_name (seg), ".dtors") != 0
2266 && strcmp (segment_name (seg), ".ctors") != 0
2267 && strcmp (segment_name (seg), ".fixup") != 0
2268 && strcmp (segment_name (seg), ".gcc_except_table") != 0
2269 && strcmp (segment_name (seg), ".eh_frame") != 0
2270 && strcmp (segment_name (seg), ".ex_shared") != 0)
2272 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
2273 || fixp->fx_r_type != BFD_RELOC_CTOR)
2275 as_bad_where (fixp->fx_file, fixp->fx_line,
2276 _("relocation cannot be done when using -mrelocatable"));
2283 /* Prevent elf_frob_file_before_adjust removing a weak undefined
2284 function descriptor sym if the corresponding code sym is used. */
2287 ppc_frob_file_before_adjust (void)
2295 for (symp = symbol_rootP; symp; symp = symbol_next (symp))
2302 name = S_GET_NAME (symp);
2306 if (! S_IS_WEAK (symp)
2307 || S_IS_DEFINED (symp))
2310 len = strlen (name) + 1;
2311 dotname = xmalloc (len + 1);
2313 memcpy (dotname + 1, name, len);
2314 dotsym = symbol_find_noref (dotname, 1);
2316 if (dotsym != NULL && (symbol_used_p (dotsym)
2317 || symbol_used_in_reloc_p (dotsym)))
2318 symbol_mark_used (symp);
2322 toc = bfd_get_section_by_name (stdoutput, ".toc");
2324 && toc_reloc_types != has_large_toc_reloc
2325 && bfd_section_size (stdoutput, toc) > 0x10000)
2326 as_warn (_("TOC section size exceeds 64k"));
2329 /* .TOC. used in an opd entry as .TOC.@tocbase doesn't need to be
2330 emitted. Other uses of .TOC. will cause the symbol to be marked
2331 with BSF_KEEP in md_apply_fix. */
2334 ppc_elf_adjust_symtab (void)
2339 symp = symbol_find (".TOC.");
2342 asymbol *bsym = symbol_get_bfdsym (symp);
2343 if ((bsym->flags & BSF_KEEP) == 0)
2344 symbol_remove (symp, &symbol_rootP, &symbol_lastP);
2350 #endif /* OBJ_ELF */
2355 * Summary of parse_toc_entry.
2357 * in: Input_line_pointer points to the '[' in one of:
2359 * [toc] [tocv] [toc32] [toc64]
2361 * Anything else is an error of one kind or another.
2364 * return value: success or failure
2365 * toc_kind: kind of toc reference
2366 * input_line_pointer:
2367 * success: first char after the ']'
2368 * failure: unchanged
2372 * [toc] - rv == success, toc_kind = default_toc
2373 * [tocv] - rv == success, toc_kind = data_in_toc
2374 * [toc32] - rv == success, toc_kind = must_be_32
2375 * [toc64] - rv == success, toc_kind = must_be_64
2379 enum toc_size_qualifier
2381 default_toc, /* The toc cell constructed should be the system default size */
2382 data_in_toc, /* This is a direct reference to a toc cell */
2383 must_be_32, /* The toc cell constructed must be 32 bits wide */
2384 must_be_64 /* The toc cell constructed must be 64 bits wide */
2388 parse_toc_entry (enum toc_size_qualifier *toc_kind)
2393 enum toc_size_qualifier t;
2395 /* Save the input_line_pointer. */
2396 start = input_line_pointer;
2398 /* Skip over the '[' , and whitespace. */
2399 ++input_line_pointer;
2402 /* Find the spelling of the operand. */
2403 toc_spec = input_line_pointer;
2404 c = get_symbol_end ();
2406 if (strcmp (toc_spec, "toc") == 0)
2410 else if (strcmp (toc_spec, "tocv") == 0)
2414 else if (strcmp (toc_spec, "toc32") == 0)
2418 else if (strcmp (toc_spec, "toc64") == 0)
2424 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
2425 *input_line_pointer = c;
2426 input_line_pointer = start;
2430 /* Now find the ']'. */
2431 *input_line_pointer = c;
2433 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2434 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
2438 as_bad (_("syntax error: expected `]', found `%c'"), c);
2439 input_line_pointer = start;
2448 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
2449 /* See whether a symbol is in the TOC section. */
2452 ppc_is_toc_sym (symbolS *sym)
2455 return symbol_get_tc (sym)->symbol_class == XMC_TC;
2458 const char *sname = segment_name (S_GET_SEGMENT (sym));
2460 return strcmp (sname, ".toc") == 0;
2462 return strcmp (sname, ".got") == 0;
2465 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
2469 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2471 ppc_apuinfo_section_add (unsigned int apu, unsigned int version)
2475 /* Check we don't already exist. */
2476 for (i = 0; i < ppc_apuinfo_num; i++)
2477 if (ppc_apuinfo_list[i] == APUID (apu, version))
2480 if (ppc_apuinfo_num == ppc_apuinfo_num_alloc)
2482 if (ppc_apuinfo_num_alloc == 0)
2484 ppc_apuinfo_num_alloc = 4;
2485 ppc_apuinfo_list = (unsigned long *)
2486 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2490 ppc_apuinfo_num_alloc += 4;
2491 ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list,
2492 sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2495 ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version);
2501 /* We need to keep a list of fixups. We can't simply generate them as
2502 we go, because that would require us to first create the frag, and
2503 that would screw up references to ``.''. */
2509 bfd_reloc_code_real_type reloc;
2512 #define MAX_INSN_FIXUPS (5)
2515 #define E_OR2I_INSN 0x7000C000
2516 #define E_AND2I_DOT_INSN 0x7000C800
2517 #define E_OR2IS_INSN 0x7000D000
2518 #define E_LIS_INSN 0x7000E000
2519 #define E_AND2IS_DOT_INSN 0x7000E800
2522 #define E_ADD2I_DOT_INSN 0x70008800
2523 #define E_ADD2IS_INSN 0x70009000
2524 #define E_CMP16I_INSN 0x70009800
2525 #define E_MULL2I_INSN 0x7000A000
2526 #define E_CMPL16I_INSN 0x7000A800
2527 #define E_CMPH16I_INSN 0x7000B000
2528 #define E_CMPHL16I_INSN 0x7000B800
2530 /* This routine is called for each instruction to be assembled. */
2533 md_assemble (char *str)
2536 const struct powerpc_opcode *opcode;
2538 const unsigned char *opindex_ptr;
2542 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
2547 unsigned int insn_length;
2549 /* Get the opcode. */
2550 for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
2555 /* Look up the opcode in the hash table. */
2556 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
2557 if (opcode == (const struct powerpc_opcode *) NULL)
2559 const struct powerpc_macro *macro;
2561 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
2562 if (macro == (const struct powerpc_macro *) NULL)
2563 as_bad (_("unrecognized opcode: `%s'"), str);
2565 ppc_macro (s, macro);
2570 insn = opcode->opcode;
2573 while (ISSPACE (*str))
2576 /* PowerPC operands are just expressions. The only real issue is
2577 that a few operand types are optional. All cases which might use
2578 an optional operand separate the operands only with commas (in some
2579 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2580 have optional operands). Most instructions with optional operands
2581 have only one. Those that have more than one optional operand can
2582 take either all their operands or none. So, before we start seriously
2583 parsing the operands, we check to see if we have optional operands,
2584 and if we do, we count the number of commas to see which operands
2585 have been omitted. */
2587 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2589 const struct powerpc_operand *operand;
2591 operand = &powerpc_operands[*opindex_ptr];
2592 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
2594 unsigned int opcount;
2595 unsigned int num_operands_expected;
2597 /* There is an optional operand. Count the number of
2598 commas in the input line. */
2605 while ((s = strchr (s, ',')) != (char *) NULL)
2612 /* Compute the number of expected operands.
2613 Do not count fake operands. */
2614 for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++)
2615 if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0)
2616 ++ num_operands_expected;
2618 /* If there are fewer operands in the line then are called
2619 for by the instruction, we want to skip the optional
2621 if (opcount < num_operands_expected)
2628 /* Gather the operands. */
2632 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2634 const struct powerpc_operand *operand;
2640 if (next_opindex == 0)
2641 operand = &powerpc_operands[*opindex_ptr];
2644 operand = &powerpc_operands[next_opindex];
2649 /* If this is a fake operand, then we do not expect anything
2651 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
2653 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2654 if (errmsg != (const char *) NULL)
2655 as_bad ("%s", errmsg);
2659 /* If this is an optional operand, and we are skipping it, just
2661 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
2664 if (operand->insert)
2666 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2667 if (errmsg != (const char *) NULL)
2668 as_bad ("%s", errmsg);
2670 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
2671 next_opindex = *opindex_ptr + 1;
2675 /* Gather the operand. */
2676 hold = input_line_pointer;
2677 input_line_pointer = str;
2680 if (*input_line_pointer == '[')
2682 /* We are expecting something like the second argument here:
2684 * lwz r4,[toc].GS.0.static_int(rtoc)
2685 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2686 * The argument following the `]' must be a symbol name, and the
2687 * register must be the toc register: 'rtoc' or '2'
2689 * The effect is to 0 as the displacement field
2690 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2691 * the appropriate variation) reloc against it based on the symbol.
2692 * The linker will build the toc, and insert the resolved toc offset.
2695 * o The size of the toc entry is currently assumed to be
2696 * 32 bits. This should not be assumed to be a hard coded
2698 * o In an effort to cope with a change from 32 to 64 bits,
2699 * there are also toc entries that are specified to be
2700 * either 32 or 64 bits:
2701 * lwz r4,[toc32].GS.0.static_int(rtoc)
2702 * lwz r4,[toc64].GS.0.static_int(rtoc)
2703 * These demand toc entries of the specified size, and the
2704 * instruction probably requires it.
2708 enum toc_size_qualifier toc_kind;
2709 bfd_reloc_code_real_type toc_reloc;
2711 /* Go parse off the [tocXX] part. */
2712 valid_toc = parse_toc_entry (&toc_kind);
2716 /* Note: message has already been issued.
2717 FIXME: what sort of recovery should we do?
2718 demand_rest_of_line (); return; ? */
2721 /* Now get the symbol following the ']'. */
2727 /* In this case, we may not have seen the symbol yet,
2728 since it is allowed to appear on a .extern or .globl
2729 or just be a label in the .data section. */
2730 toc_reloc = BFD_RELOC_PPC_TOC16;
2733 /* 1. The symbol must be defined and either in the toc
2734 section, or a global.
2735 2. The reloc generated must have the TOCDEFN flag set
2736 in upper bit mess of the reloc type.
2737 FIXME: It's a little confusing what the tocv
2738 qualifier can be used for. At the very least, I've
2739 seen three uses, only one of which I'm sure I can
2741 if (ex.X_op == O_symbol)
2743 gas_assert (ex.X_add_symbol != NULL);
2744 if (symbol_get_bfdsym (ex.X_add_symbol)->section
2747 as_bad (_("[tocv] symbol is not a toc symbol"));
2751 toc_reloc = BFD_RELOC_PPC_TOC16;
2754 /* FIXME: these next two specifically specify 32/64 bit
2755 toc entries. We don't support them today. Is this
2756 the right way to say that? */
2757 toc_reloc = BFD_RELOC_UNUSED;
2758 as_bad (_("unimplemented toc32 expression modifier"));
2761 /* FIXME: see above. */
2762 toc_reloc = BFD_RELOC_UNUSED;
2763 as_bad (_("unimplemented toc64 expression modifier"));
2767 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2773 /* We need to generate a fixup for this expression. */
2774 if (fc >= MAX_INSN_FIXUPS)
2775 as_fatal (_("too many fixups"));
2777 fixups[fc].reloc = toc_reloc;
2778 fixups[fc].exp = ex;
2779 fixups[fc].opindex = *opindex_ptr;
2782 /* Ok. We've set up the fixup for the instruction. Now make it
2783 look like the constant 0 was found here. */
2785 ex.X_op = O_constant;
2786 ex.X_add_number = 0;
2787 ex.X_add_symbol = NULL;
2788 ex.X_op_symbol = NULL;
2795 && (((operand->flags & PPC_OPERAND_CR_BIT) != 0)
2796 || ((operand->flags & PPC_OPERAND_CR_REG) != 0)))
2797 || !register_name (&ex))
2799 char save_lex = lex_type['%'];
2801 if (((operand->flags & PPC_OPERAND_CR_REG) != 0)
2802 || (operand->flags & PPC_OPERAND_CR_BIT) != 0)
2805 lex_type['%'] |= LEX_BEGIN_NAME;
2809 lex_type['%'] = save_lex;
2813 str = input_line_pointer;
2814 input_line_pointer = hold;
2816 if (ex.X_op == O_illegal)
2817 as_bad (_("illegal operand"));
2818 else if (ex.X_op == O_absent)
2819 as_bad (_("missing operand"));
2820 else if (ex.X_op == O_register)
2822 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2823 ppc_cpu, (char *) NULL, 0);
2825 else if (ex.X_op == O_constant)
2828 /* Allow @HA, @L, @H on constants. */
2829 bfd_reloc_code_real_type reloc;
2830 char *orig_str = str;
2832 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2839 case BFD_RELOC_LO16:
2840 /* X_unsigned is the default, so if the user has done
2841 something which cleared it, we always produce a
2843 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2844 ex.X_add_number &= 0xffff;
2846 ex.X_add_number = SEX16 (ex.X_add_number);
2849 case BFD_RELOC_HI16:
2850 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2851 ex.X_add_number = PPC_HI (ex.X_add_number);
2853 ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number));
2856 case BFD_RELOC_HI16_S:
2857 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2858 ex.X_add_number = PPC_HA (ex.X_add_number);
2860 ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number));
2863 case BFD_RELOC_PPC64_HIGHER:
2864 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2865 ex.X_add_number = PPC_HIGHER (ex.X_add_number);
2867 ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number));
2870 case BFD_RELOC_PPC64_HIGHER_S:
2871 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2872 ex.X_add_number = PPC_HIGHERA (ex.X_add_number);
2874 ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number));
2877 case BFD_RELOC_PPC64_HIGHEST:
2878 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2879 ex.X_add_number = PPC_HIGHEST (ex.X_add_number);
2881 ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number));
2884 case BFD_RELOC_PPC64_HIGHEST_S:
2885 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2886 ex.X_add_number = PPC_HIGHESTA (ex.X_add_number);
2888 ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number));
2891 #endif /* OBJ_ELF */
2892 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2893 ppc_cpu, (char *) NULL, 0);
2897 bfd_reloc_code_real_type reloc = BFD_RELOC_UNUSED;
2899 if (ex.X_op == O_symbol && str[0] == '(')
2901 const char *sym_name = S_GET_NAME (ex.X_add_symbol);
2902 if (sym_name[0] == '.')
2905 if (strcasecmp (sym_name, "__tls_get_addr") == 0)
2907 expressionS tls_exp;
2909 hold = input_line_pointer;
2910 input_line_pointer = str + 1;
2911 expression (&tls_exp);
2912 if (tls_exp.X_op == O_symbol)
2914 reloc = BFD_RELOC_UNUSED;
2915 if (strncasecmp (input_line_pointer, "@tlsgd)", 7) == 0)
2917 reloc = BFD_RELOC_PPC_TLSGD;
2918 input_line_pointer += 7;
2920 else if (strncasecmp (input_line_pointer, "@tlsld)", 7) == 0)
2922 reloc = BFD_RELOC_PPC_TLSLD;
2923 input_line_pointer += 7;
2925 if (reloc != BFD_RELOC_UNUSED)
2928 str = input_line_pointer;
2930 if (fc >= MAX_INSN_FIXUPS)
2931 as_fatal (_("too many fixups"));
2932 fixups[fc].exp = tls_exp;
2933 fixups[fc].opindex = *opindex_ptr;
2934 fixups[fc].reloc = reloc;
2938 input_line_pointer = hold;
2942 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2944 /* Some TLS tweaks. */
2950 case BFD_RELOC_PPC_TLS:
2951 if (!_bfd_elf_ppc_at_tls_transform (opcode->opcode, 0))
2952 as_bad (_("@tls may not be used with \"%s\" operands"),
2954 else if (operand->shift != 11)
2955 as_bad (_("@tls may only be used in last operand"));
2957 insn = ppc_insert_operand (insn, operand,
2959 ppc_cpu, (char *) NULL, 0);
2962 /* We'll only use the 32 (or 64) bit form of these relocations
2963 in constants. Instructions get the 16 bit form. */
2964 case BFD_RELOC_PPC_DTPREL:
2965 reloc = BFD_RELOC_PPC_DTPREL16;
2967 case BFD_RELOC_PPC_TPREL:
2968 reloc = BFD_RELOC_PPC_TPREL16;
2972 /* If VLE-mode convert LO/HI/HA relocations. */
2973 if (opcode->flags & PPC_OPCODE_VLE)
2975 int tmp_insn = insn & opcode->mask;
2977 int use_d_reloc = (tmp_insn == E_OR2I_INSN
2978 || tmp_insn == E_AND2I_DOT_INSN
2979 || tmp_insn == E_OR2IS_INSN
2980 || tmp_insn == E_LIS_INSN
2981 || tmp_insn == E_AND2IS_DOT_INSN);
2984 int use_a_reloc = (tmp_insn == E_ADD2I_DOT_INSN
2985 || tmp_insn == E_ADD2IS_INSN
2986 || tmp_insn == E_CMP16I_INSN
2987 || tmp_insn == E_MULL2I_INSN
2988 || tmp_insn == E_CMPL16I_INSN
2989 || tmp_insn == E_CMPH16I_INSN
2990 || tmp_insn == E_CMPHL16I_INSN);
2997 case BFD_RELOC_PPC_EMB_SDA21:
2998 reloc = BFD_RELOC_PPC_VLE_SDA21;
3001 case BFD_RELOC_LO16:
3003 reloc = BFD_RELOC_PPC_VLE_LO16D;
3004 else if (use_a_reloc)
3005 reloc = BFD_RELOC_PPC_VLE_LO16A;
3008 case BFD_RELOC_HI16:
3010 reloc = BFD_RELOC_PPC_VLE_HI16D;
3011 else if (use_a_reloc)
3012 reloc = BFD_RELOC_PPC_VLE_HI16A;
3015 case BFD_RELOC_HI16_S:
3017 reloc = BFD_RELOC_PPC_VLE_HA16D;
3018 else if (use_a_reloc)
3019 reloc = BFD_RELOC_PPC_VLE_HA16A;
3022 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
3024 reloc = BFD_RELOC_PPC_VLE_SDAREL_LO16D;
3027 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
3029 reloc = BFD_RELOC_PPC_VLE_SDAREL_HI16D;
3032 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
3034 reloc = BFD_RELOC_PPC_VLE_SDAREL_HA16D;
3039 /* For the absolute forms of branches, convert the PC
3040 relative form back into the absolute. */
3041 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
3045 case BFD_RELOC_PPC_B26:
3046 reloc = BFD_RELOC_PPC_BA26;
3048 case BFD_RELOC_PPC_B16:
3049 reloc = BFD_RELOC_PPC_BA16;
3051 case BFD_RELOC_PPC_B16_BRTAKEN:
3052 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
3054 case BFD_RELOC_PPC_B16_BRNTAKEN:
3055 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
3064 case BFD_RELOC_PPC_TOC16:
3065 toc_reloc_types |= has_small_toc_reloc;
3067 case BFD_RELOC_PPC64_TOC16_LO:
3068 case BFD_RELOC_PPC64_TOC16_HI:
3069 case BFD_RELOC_PPC64_TOC16_HA:
3070 toc_reloc_types |= has_large_toc_reloc;
3076 if ((operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0)
3081 reloc = BFD_RELOC_PPC64_ADDR16_DS;
3083 case BFD_RELOC_LO16:
3084 reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
3086 case BFD_RELOC_16_GOTOFF:
3087 reloc = BFD_RELOC_PPC64_GOT16_DS;
3089 case BFD_RELOC_LO16_GOTOFF:
3090 reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
3092 case BFD_RELOC_LO16_PLTOFF:
3093 reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
3095 case BFD_RELOC_16_BASEREL:
3096 reloc = BFD_RELOC_PPC64_SECTOFF_DS;
3098 case BFD_RELOC_LO16_BASEREL:
3099 reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
3101 case BFD_RELOC_PPC_TOC16:
3102 reloc = BFD_RELOC_PPC64_TOC16_DS;
3104 case BFD_RELOC_PPC64_TOC16_LO:
3105 reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
3107 case BFD_RELOC_PPC64_PLTGOT16:
3108 reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
3110 case BFD_RELOC_PPC64_PLTGOT16_LO:
3111 reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
3113 case BFD_RELOC_PPC_DTPREL16:
3114 reloc = BFD_RELOC_PPC64_DTPREL16_DS;
3116 case BFD_RELOC_PPC_DTPREL16_LO:
3117 reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS;
3119 case BFD_RELOC_PPC_TPREL16:
3120 reloc = BFD_RELOC_PPC64_TPREL16_DS;
3122 case BFD_RELOC_PPC_TPREL16_LO:
3123 reloc = BFD_RELOC_PPC64_TPREL16_LO_DS;
3125 case BFD_RELOC_PPC_GOT_DTPREL16:
3126 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
3127 case BFD_RELOC_PPC_GOT_TPREL16:
3128 case BFD_RELOC_PPC_GOT_TPREL16_LO:
3131 as_bad (_("unsupported relocation for DS offset field"));
3136 #endif /* OBJ_ELF */
3138 if (reloc != BFD_RELOC_UNUSED)
3140 /* Determine a BFD reloc value based on the operand information.
3141 We are only prepared to turn a few of the operands into
3143 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
3144 && operand->bitm == 0x3fffffc
3145 && operand->shift == 0)
3146 reloc = BFD_RELOC_PPC_B26;
3147 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
3148 && operand->bitm == 0xfffc
3149 && operand->shift == 0)
3150 reloc = BFD_RELOC_PPC_B16;
3151 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
3152 && operand->bitm == 0x1fe
3153 && operand->shift == -1)
3154 reloc = BFD_RELOC_PPC_VLE_REL8;
3155 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
3156 && operand->bitm == 0xfffe
3157 && operand->shift == 0)
3158 reloc = BFD_RELOC_PPC_VLE_REL15;
3159 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
3160 && operand->bitm == 0x1fffffe
3161 && operand->shift == 0)
3162 reloc = BFD_RELOC_PPC_VLE_REL24;
3163 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
3164 && operand->bitm == 0x3fffffc
3165 && operand->shift == 0)
3166 reloc = BFD_RELOC_PPC_BA26;
3167 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
3168 && operand->bitm == 0xfffc
3169 && operand->shift == 0)
3170 reloc = BFD_RELOC_PPC_BA16;
3171 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
3172 else if ((operand->flags & PPC_OPERAND_PARENS) != 0
3173 && (operand->bitm & 0xfff0) == 0xfff0
3174 && operand->shift == 0)
3176 if (ppc_is_toc_sym (ex.X_add_symbol))
3178 reloc = BFD_RELOC_PPC_TOC16;
3181 && (operand->flags & PPC_OPERAND_DS) != 0)
3182 reloc = BFD_RELOC_PPC64_TOC16_DS;
3187 reloc = BFD_RELOC_16;
3190 && (operand->flags & PPC_OPERAND_DS) != 0)
3191 reloc = BFD_RELOC_PPC64_ADDR16_DS;
3195 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
3197 /* We need to generate a fixup for this expression. */
3198 if (fc >= MAX_INSN_FIXUPS)
3199 as_fatal (_("too many fixups"));
3200 fixups[fc].exp = ex;
3201 fixups[fc].opindex = *opindex_ptr;
3202 fixups[fc].reloc = reloc;
3210 /* If expecting more operands, then we want to see "),". */
3211 if (*str == endc && opindex_ptr[1] != 0)
3215 while (ISSPACE (*str));
3219 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
3227 /* The call to expression should have advanced str past any
3230 && (endc != ',' || *str != '\0'))
3233 as_bad (_("syntax error; end of line, expected `%c'"), endc);
3235 as_bad (_("syntax error; found `%c', expected `%c'"), *str, endc);
3243 while (ISSPACE (*str))
3247 as_bad (_("junk at end of line: `%s'"), str);
3250 /* Do we need/want an APUinfo section? */
3251 if ((ppc_cpu & (PPC_OPCODE_E500 | PPC_OPCODE_E500MC | PPC_OPCODE_VLE)) != 0)
3253 /* These are all version "1". */
3254 if (opcode->flags & PPC_OPCODE_SPE)
3255 ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1);
3256 if (opcode->flags & PPC_OPCODE_ISEL)
3257 ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1);
3258 if (opcode->flags & PPC_OPCODE_EFS)
3259 ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1);
3260 if (opcode->flags & PPC_OPCODE_BRLOCK)
3261 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1);
3262 if (opcode->flags & PPC_OPCODE_PMR)
3263 ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1);
3264 if (opcode->flags & PPC_OPCODE_CACHELCK)
3265 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1);
3266 if (opcode->flags & PPC_OPCODE_RFMCI)
3267 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1);
3268 if (opcode->flags & PPC_OPCODE_VLE)
3269 ppc_apuinfo_section_add (PPC_APUINFO_VLE, 1);
3273 /* Write out the instruction. */
3274 /* Differentiate between two and four byte insns. */
3275 if (ppc_mach () == bfd_mach_ppc_vle)
3277 if (PPC_OP_SE_VLE (insn))
3281 addr_mod = frag_now_fix () & 1;
3286 addr_mod = frag_now_fix () & 3;
3288 /* All instructions can start on a 2 byte boundary for VLE. */
3289 f = frag_more (insn_length);
3290 if (frag_now->has_code && frag_now->insn_addr != addr_mod)
3292 if (ppc_mach() == bfd_mach_ppc_vle)
3293 as_bad (_("instruction address is not a multiple of 2"));
3295 as_bad (_("instruction address is not a multiple of 4"));
3297 frag_now->insn_addr = addr_mod;
3298 frag_now->has_code = 1;
3299 md_number_to_chars (f, insn, insn_length);
3302 dwarf2_emit_insn (insn_length);
3305 /* Create any fixups. */
3306 for (i = 0; i < fc; i++)
3309 if (fixups[i].reloc != BFD_RELOC_UNUSED)
3311 reloc_howto_type *reloc_howto;
3315 reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
3319 size = bfd_get_reloc_size (reloc_howto);
3320 offset = target_big_endian ? (insn_length - size) : 0;
3322 if (size < 1 || size > 4)
3325 fixP = fix_new_exp (frag_now,
3326 f - frag_now->fr_literal + offset,
3329 reloc_howto->pc_relative,
3334 const struct powerpc_operand *operand;
3336 operand = &powerpc_operands[fixups[i].opindex];
3337 fixP = fix_new_exp (frag_now,
3338 f - frag_now->fr_literal,
3341 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
3344 fixP->fx_pcrel_adjust = fixups[i].opindex;
3348 /* Handle a macro. Gather all the operands, transform them as
3349 described by the macro, and call md_assemble recursively. All the
3350 operands are separated by commas; we don't accept parentheses
3351 around operands here. */
3354 ppc_macro (char *str, const struct powerpc_macro *macro)
3365 /* Gather the users operands into the operands array. */
3370 if (count >= sizeof operands / sizeof operands[0])
3372 operands[count++] = s;
3373 s = strchr (s, ',');
3374 if (s == (char *) NULL)
3379 if (count != macro->operands)
3381 as_bad (_("wrong number of operands"));
3385 /* Work out how large the string must be (the size is unbounded
3386 because it includes user input). */
3388 format = macro->format;
3389 while (*format != '\0')
3398 arg = strtol (format + 1, &send, 10);
3399 know (send != format && arg < count);
3400 len += strlen (operands[arg]);
3405 /* Put the string together. */
3406 complete = s = (char *) alloca (len + 1);
3407 format = macro->format;
3408 while (*format != '\0')
3414 arg = strtol (format + 1, &send, 10);
3415 strcpy (s, operands[arg]);
3422 /* Assemble the constructed instruction. */
3423 md_assemble (complete);
3427 /* For ELF, add support for SHT_ORDERED. */
3430 ppc_section_type (char *str, size_t len)
3432 if (len == 7 && strncmp (str, "ordered", 7) == 0)
3439 ppc_section_flags (flagword flags, bfd_vma attr ATTRIBUTE_UNUSED, int type)
3441 if (type == SHT_ORDERED)
3442 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
3446 #endif /* OBJ_ELF */
3449 /* Pseudo-op handling. */
3451 /* The .byte pseudo-op. This is similar to the normal .byte
3452 pseudo-op, but it can also take a single ASCII string. */
3455 ppc_byte (int ignore ATTRIBUTE_UNUSED)
3457 if (*input_line_pointer != '\"')
3463 /* Gather characters. A real double quote is doubled. Unusual
3464 characters are not permitted. */
3465 ++input_line_pointer;
3470 c = *input_line_pointer++;
3474 if (*input_line_pointer != '\"')
3476 ++input_line_pointer;
3479 FRAG_APPEND_1_CHAR (c);
3482 demand_empty_rest_of_line ();
3487 /* XCOFF specific pseudo-op handling. */
3489 /* This is set if we are creating a .stabx symbol, since we don't want
3490 to handle symbol suffixes for such symbols. */
3491 static bfd_boolean ppc_stab_symbol;
3493 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
3494 symbols in the .bss segment as though they were local common
3495 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
3496 aligns .comm and .lcomm to 4 bytes. */
3499 ppc_comm (int lcomm)
3501 asection *current_seg = now_seg;
3502 subsegT current_subseg = now_subseg;
3508 symbolS *lcomm_sym = NULL;
3512 name = input_line_pointer;
3513 endc = get_symbol_end ();
3514 end_name = input_line_pointer;
3517 if (*input_line_pointer != ',')
3519 as_bad (_("missing size"));
3520 ignore_rest_of_line ();
3523 ++input_line_pointer;
3525 size = get_absolute_expression ();
3528 as_bad (_("negative size"));
3529 ignore_rest_of_line ();
3535 /* The third argument to .comm is the alignment. */
3536 if (*input_line_pointer != ',')
3540 ++input_line_pointer;
3541 align = get_absolute_expression ();
3544 as_warn (_("ignoring bad alignment"));
3559 /* The third argument to .lcomm appears to be the real local
3560 common symbol to create. References to the symbol named in
3561 the first argument are turned into references to the third
3563 if (*input_line_pointer != ',')
3565 as_bad (_("missing real symbol name"));
3566 ignore_rest_of_line ();
3569 ++input_line_pointer;
3571 lcomm_name = input_line_pointer;
3572 lcomm_endc = get_symbol_end ();
3574 lcomm_sym = symbol_find_or_make (lcomm_name);
3576 *input_line_pointer = lcomm_endc;
3580 sym = symbol_find_or_make (name);
3583 if (S_IS_DEFINED (sym)
3584 || S_GET_VALUE (sym) != 0)
3586 as_bad (_("attempt to redefine symbol"));
3587 ignore_rest_of_line ();
3591 record_alignment (bss_section, align);
3594 || ! S_IS_DEFINED (lcomm_sym))
3603 S_SET_EXTERNAL (sym);
3607 symbol_get_tc (lcomm_sym)->output = 1;
3608 def_sym = lcomm_sym;
3612 subseg_set (bss_section, 1);
3613 frag_align (align, 0, 0);
3615 symbol_set_frag (def_sym, frag_now);
3616 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
3617 def_size, (char *) NULL);
3619 S_SET_SEGMENT (def_sym, bss_section);
3620 symbol_get_tc (def_sym)->align = align;
3624 /* Align the size of lcomm_sym. */
3625 symbol_get_frag (lcomm_sym)->fr_offset =
3626 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
3627 &~ ((1 << align) - 1));
3628 if (align > symbol_get_tc (lcomm_sym)->align)
3629 symbol_get_tc (lcomm_sym)->align = align;
3634 /* Make sym an offset from lcomm_sym. */
3635 S_SET_SEGMENT (sym, bss_section);
3636 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
3637 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
3638 symbol_get_frag (lcomm_sym)->fr_offset += size;
3641 subseg_set (current_seg, current_subseg);
3643 demand_empty_rest_of_line ();
3646 /* The .csect pseudo-op. This switches us into a different
3647 subsegment. The first argument is a symbol whose value is the
3648 start of the .csect. In COFF, csect symbols get special aux
3649 entries defined by the x_csect field of union internal_auxent. The
3650 optional second argument is the alignment (the default is 2). */
3653 ppc_csect (int ignore ATTRIBUTE_UNUSED)
3660 name = input_line_pointer;
3661 endc = get_symbol_end ();
3663 sym = symbol_find_or_make (name);
3665 *input_line_pointer = endc;
3667 if (S_GET_NAME (sym)[0] == '\0')
3669 /* An unnamed csect is assumed to be [PR]. */
3670 symbol_get_tc (sym)->symbol_class = XMC_PR;
3674 if (*input_line_pointer == ',')
3676 ++input_line_pointer;
3677 align = get_absolute_expression ();
3680 ppc_change_csect (sym, align);
3682 demand_empty_rest_of_line ();
3685 /* Change to a different csect. */
3688 ppc_change_csect (symbolS *sym, offsetT align)
3690 if (S_IS_DEFINED (sym))
3691 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
3701 /* This is a new csect. We need to look at the symbol class to
3702 figure out whether it should go in the text section or the
3706 switch (symbol_get_tc (sym)->symbol_class)
3716 S_SET_SEGMENT (sym, text_section);
3717 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
3718 ++ppc_text_subsegment;
3719 list_ptr = &ppc_text_csects;
3729 if (ppc_toc_csect != NULL
3730 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
3731 == ppc_data_subsegment))
3733 S_SET_SEGMENT (sym, data_section);
3734 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
3735 ++ppc_data_subsegment;
3736 list_ptr = &ppc_data_csects;
3742 /* We set the obstack chunk size to a small value before
3743 changing subsegments, so that we don't use a lot of memory
3744 space for what may be a small section. */
3745 hold_chunksize = chunksize;
3748 sec = subseg_new (segment_name (S_GET_SEGMENT (sym)),
3749 symbol_get_tc (sym)->subseg);
3751 chunksize = hold_chunksize;
3754 ppc_after_toc_frag = frag_now;
3756 record_alignment (sec, align);
3758 frag_align_code (align, 0);
3760 frag_align (align, 0, 0);
3762 symbol_set_frag (sym, frag_now);
3763 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3765 symbol_get_tc (sym)->align = align;
3766 symbol_get_tc (sym)->output = 1;
3767 symbol_get_tc (sym)->within = sym;
3769 for (list = *list_ptr;
3770 symbol_get_tc (list)->next != (symbolS *) NULL;
3771 list = symbol_get_tc (list)->next)
3773 symbol_get_tc (list)->next = sym;
3775 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3776 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3780 ppc_current_csect = sym;
3784 ppc_change_debug_section (unsigned int idx, subsegT subseg)
3788 const struct xcoff_dwsect_name *dw = &xcoff_dwsect_names[idx];
3790 sec = subseg_new (dw->name, subseg);
3791 oldflags = bfd_get_section_flags (stdoutput, sec);
3792 if (oldflags == SEC_NO_FLAGS)
3794 /* Just created section. */
3795 gas_assert (dw_sections[idx].sect == NULL);
3797 bfd_set_section_flags (stdoutput, sec, SEC_DEBUGGING);
3798 bfd_set_section_alignment (stdoutput, sec, 0);
3799 dw_sections[idx].sect = sec;
3802 /* Not anymore in a csect. */
3803 ppc_current_csect = NULL;
3806 /* The .dwsect pseudo-op. Defines a DWARF section. Syntax is:
3807 .dwsect flag [, opt-label ]
3811 ppc_dwsect (int ignore ATTRIBUTE_UNUSED)
3815 const struct xcoff_dwsect_name *dw;
3816 struct dw_subsection *subseg;
3817 struct dw_section *dws;
3821 flag = get_absolute_expression ();
3823 for (i = 0; i < XCOFF_DWSECT_NBR_NAMES; i++)
3824 if (xcoff_dwsect_names[i].flag == flag)
3826 dw = &xcoff_dwsect_names[i];
3830 /* Parse opt-label. */
3831 if (*input_line_pointer == ',')
3836 ++input_line_pointer;
3838 label = input_line_pointer;
3839 c = get_symbol_end ();
3840 opt_label = symbol_find_or_make (label);
3841 *input_line_pointer = c;
3846 demand_empty_rest_of_line ();
3848 /* Return now in case of unknown subsection. */
3851 as_bad (_("no known dwarf XCOFF section for flag 0x%08x\n"),
3856 /* Find the subsection. */
3857 dws = &dw_sections[i];
3859 if (opt_label != NULL && S_IS_DEFINED (opt_label))
3861 /* Sanity check (note that in theory S_GET_SEGMENT mustn't be null). */
3862 if (dws->sect == NULL || S_GET_SEGMENT (opt_label) != dws->sect)
3864 as_bad (_("label %s was not defined in this dwarf section"),
3865 S_GET_NAME (opt_label));
3866 subseg = dws->anon_subseg;
3870 subseg = symbol_get_tc (opt_label)->u.dw;
3875 /* Switch to the subsection. */
3876 ppc_change_debug_section (i, subseg->subseg);
3880 /* Create a new dw subsection. */
3881 subseg = (struct dw_subsection *)
3882 xmalloc (sizeof (struct dw_subsection));
3884 if (opt_label == NULL)
3886 /* The anonymous one. */
3888 subseg->link = NULL;
3889 dws->anon_subseg = subseg;
3894 if (dws->list_subseg != NULL)
3895 subseg->subseg = dws->list_subseg->subseg + 1;
3899 subseg->link = dws->list_subseg;
3900 dws->list_subseg = subseg;
3901 symbol_get_tc (opt_label)->u.dw = subseg;
3904 ppc_change_debug_section (i, subseg->subseg);
3908 /* Add the length field. */
3909 expressionS *exp = &subseg->end_exp;
3912 if (opt_label != NULL)
3913 symbol_set_value_now (opt_label);
3915 /* Add the length field. Note that according to the AIX assembler
3916 manual, the size of the length field is 4 for powerpc32 but
3917 12 for powerpc64. */
3920 /* Write the 64bit marker. */
3921 md_number_to_chars (frag_more (4), -1, 4);
3924 exp->X_op = O_subtract;
3925 exp->X_op_symbol = symbol_temp_new_now ();
3926 exp->X_add_symbol = symbol_temp_make ();
3928 sz = ppc_obj64 ? 8 : 4;
3929 exp->X_add_number = -sz;
3930 emit_expr (exp, sz);
3935 /* This function handles the .text and .data pseudo-ops. These
3936 pseudo-ops aren't really used by XCOFF; we implement them for the
3937 convenience of people who aren't used to XCOFF. */
3940 ppc_section (int type)
3947 else if (type == 'd')
3952 sym = symbol_find_or_make (name);
3954 ppc_change_csect (sym, 2);
3956 demand_empty_rest_of_line ();
3959 /* This function handles the .section pseudo-op. This is mostly to
3960 give an error, since XCOFF only supports .text, .data and .bss, but
3961 we do permit the user to name the text or data section. */
3964 ppc_named_section (int ignore ATTRIBUTE_UNUSED)
3967 const char *real_name;
3971 user_name = input_line_pointer;
3972 c = get_symbol_end ();
3974 if (strcmp (user_name, ".text") == 0)
3975 real_name = ".text[PR]";
3976 else if (strcmp (user_name, ".data") == 0)
3977 real_name = ".data[RW]";
3980 as_bad (_("the XCOFF file format does not support arbitrary sections"));
3981 *input_line_pointer = c;
3982 ignore_rest_of_line ();
3986 *input_line_pointer = c;
3988 sym = symbol_find_or_make (real_name);
3990 ppc_change_csect (sym, 2);
3992 demand_empty_rest_of_line ();
3995 /* The .extern pseudo-op. We create an undefined symbol. */
3998 ppc_extern (int ignore ATTRIBUTE_UNUSED)
4003 name = input_line_pointer;
4004 endc = get_symbol_end ();
4006 (void) symbol_find_or_make (name);
4008 *input_line_pointer = endc;
4010 demand_empty_rest_of_line ();
4013 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
4016 ppc_lglobl (int ignore ATTRIBUTE_UNUSED)
4022 name = input_line_pointer;
4023 endc = get_symbol_end ();
4025 sym = symbol_find_or_make (name);
4027 *input_line_pointer = endc;
4029 symbol_get_tc (sym)->output = 1;
4031 demand_empty_rest_of_line ();
4034 /* The .ref pseudo-op. It takes a list of symbol names and inserts R_REF
4035 relocations at the beginning of the current csect.
4037 (In principle, there's no reason why the relocations _have_ to be at
4038 the beginning. Anywhere in the csect would do. However, inserting
4039 at the beginning is what the native assmebler does, and it helps to
4040 deal with cases where the .ref statements follow the section contents.)
4042 ??? .refs don't work for empty .csects. However, the native assembler
4043 doesn't report an error in this case, and neither yet do we. */
4046 ppc_ref (int ignore ATTRIBUTE_UNUSED)
4051 if (ppc_current_csect == NULL)
4053 as_bad (_(".ref outside .csect"));
4054 ignore_rest_of_line ();
4060 name = input_line_pointer;
4061 c = get_symbol_end ();
4063 fix_at_start (symbol_get_frag (ppc_current_csect), 0,
4064 symbol_find_or_make (name), 0, FALSE, BFD_RELOC_NONE);
4066 *input_line_pointer = c;
4068 c = *input_line_pointer;
4071 input_line_pointer++;
4073 if (is_end_of_line[(unsigned char) *input_line_pointer])
4075 as_bad (_("missing symbol name"));
4076 ignore_rest_of_line ();
4083 demand_empty_rest_of_line ();
4086 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
4087 although I don't know why it bothers. */
4090 ppc_rename (int ignore ATTRIBUTE_UNUSED)
4097 name = input_line_pointer;
4098 endc = get_symbol_end ();
4100 sym = symbol_find_or_make (name);
4102 *input_line_pointer = endc;
4104 if (*input_line_pointer != ',')
4106 as_bad (_("missing rename string"));
4107 ignore_rest_of_line ();
4110 ++input_line_pointer;
4112 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
4114 demand_empty_rest_of_line ();
4117 /* The .stabx pseudo-op. This is similar to a normal .stabs
4118 pseudo-op, but slightly different. A sample is
4119 .stabx "main:F-1",.main,142,0
4120 The first argument is the symbol name to create. The second is the
4121 value, and the third is the storage class. The fourth seems to be
4122 always zero, and I am assuming it is the type. */
4125 ppc_stabx (int ignore ATTRIBUTE_UNUSED)
4132 name = demand_copy_C_string (&len);
4134 if (*input_line_pointer != ',')
4136 as_bad (_("missing value"));
4139 ++input_line_pointer;
4141 ppc_stab_symbol = TRUE;
4142 sym = symbol_make (name);
4143 ppc_stab_symbol = FALSE;
4145 symbol_get_tc (sym)->real_name = name;
4147 (void) expression (&exp);
4154 as_bad (_("illegal .stabx expression; zero assumed"));
4155 exp.X_add_number = 0;
4158 S_SET_VALUE (sym, (valueT) exp.X_add_number);
4159 symbol_set_frag (sym, &zero_address_frag);
4163 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
4164 symbol_set_value_expression (sym, &exp);
4168 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
4169 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
4174 /* The value is some complex expression. This will probably
4175 fail at some later point, but this is probably the right
4176 thing to do here. */
4177 symbol_set_value_expression (sym, &exp);
4181 S_SET_SEGMENT (sym, ppc_coff_debug_section);
4182 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4184 if (*input_line_pointer != ',')
4186 as_bad (_("missing class"));
4189 ++input_line_pointer;
4191 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
4193 if (*input_line_pointer != ',')
4195 as_bad (_("missing type"));
4198 ++input_line_pointer;
4200 S_SET_DATA_TYPE (sym, get_absolute_expression ());
4202 symbol_get_tc (sym)->output = 1;
4204 if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
4209 .stabx "z",arrays_,133,0
4212 .comm arrays_,13768,3
4214 resolve_symbol_value will copy the exp's "within" into sym's when the
4215 offset is 0. Since this seems to be corner case problem,
4216 only do the correction for storage class C_STSYM. A better solution
4217 would be to have the tc field updated in ppc_symbol_new_hook. */
4219 if (exp.X_op == O_symbol)
4221 if (ppc_current_block == NULL)
4222 as_bad (_(".stabx of storage class stsym must be within .bs/.es"));
4224 symbol_get_tc (sym)->within = ppc_current_block;
4225 symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block;
4229 if (exp.X_op != O_symbol
4230 || ! S_IS_EXTERNAL (exp.X_add_symbol)
4231 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
4232 ppc_frob_label (sym);
4235 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4236 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
4237 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
4238 symbol_get_tc (ppc_current_csect)->within = sym;
4241 demand_empty_rest_of_line ();
4244 /* The .function pseudo-op. This takes several arguments. The first
4245 argument seems to be the external name of the symbol. The second
4246 argument seems to be the label for the start of the function. gcc
4247 uses the same name for both. I have no idea what the third and
4248 fourth arguments are meant to be. The optional fifth argument is
4249 an expression for the size of the function. In COFF this symbol
4250 gets an aux entry like that used for a csect. */
4253 ppc_function (int ignore ATTRIBUTE_UNUSED)
4261 name = input_line_pointer;
4262 endc = get_symbol_end ();
4264 /* Ignore any [PR] suffix. */
4265 name = ppc_canonicalize_symbol_name (name);
4266 s = strchr (name, '[');
4267 if (s != (char *) NULL
4268 && strcmp (s + 1, "PR]") == 0)
4271 ext_sym = symbol_find_or_make (name);
4273 *input_line_pointer = endc;
4275 if (*input_line_pointer != ',')
4277 as_bad (_("missing symbol name"));
4278 ignore_rest_of_line ();
4281 ++input_line_pointer;
4283 name = input_line_pointer;
4284 endc = get_symbol_end ();
4286 lab_sym = symbol_find_or_make (name);
4288 *input_line_pointer = endc;
4290 if (ext_sym != lab_sym)
4294 exp.X_op = O_symbol;
4295 exp.X_add_symbol = lab_sym;
4296 exp.X_op_symbol = NULL;
4297 exp.X_add_number = 0;
4299 symbol_set_value_expression (ext_sym, &exp);
4302 if (symbol_get_tc (ext_sym)->symbol_class == -1)
4303 symbol_get_tc (ext_sym)->symbol_class = XMC_PR;
4304 symbol_get_tc (ext_sym)->output = 1;
4306 if (*input_line_pointer == ',')
4310 /* Ignore the third argument. */
4311 ++input_line_pointer;
4313 if (*input_line_pointer == ',')
4315 /* Ignore the fourth argument. */
4316 ++input_line_pointer;
4318 if (*input_line_pointer == ',')
4320 /* The fifth argument is the function size. */
4321 ++input_line_pointer;
4322 symbol_get_tc (ext_sym)->u.size = symbol_new
4323 ("L0\001", absolute_section,(valueT) 0, &zero_address_frag);
4324 pseudo_set (symbol_get_tc (ext_sym)->u.size);
4329 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
4330 SF_SET_FUNCTION (ext_sym);
4331 SF_SET_PROCESS (ext_sym);
4332 coff_add_linesym (ext_sym);
4334 demand_empty_rest_of_line ();
4337 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
4338 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
4339 with the correct line number */
4341 static symbolS *saved_bi_sym = 0;
4344 ppc_bf (int ignore ATTRIBUTE_UNUSED)
4348 sym = symbol_make (".bf");
4349 S_SET_SEGMENT (sym, text_section);
4350 symbol_set_frag (sym, frag_now);
4351 S_SET_VALUE (sym, frag_now_fix ());
4352 S_SET_STORAGE_CLASS (sym, C_FCN);
4354 coff_line_base = get_absolute_expression ();
4356 S_SET_NUMBER_AUXILIARY (sym, 1);
4357 SA_SET_SYM_LNNO (sym, coff_line_base);
4359 /* Line number for bi. */
4362 S_SET_VALUE (saved_bi_sym, coff_n_line_nos);
4367 symbol_get_tc (sym)->output = 1;
4369 ppc_frob_label (sym);
4371 demand_empty_rest_of_line ();
4374 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
4375 ".ef", except that the line number is absolute, not relative to the
4376 most recent ".bf" symbol. */
4379 ppc_ef (int ignore ATTRIBUTE_UNUSED)
4383 sym = symbol_make (".ef");
4384 S_SET_SEGMENT (sym, text_section);
4385 symbol_set_frag (sym, frag_now);
4386 S_SET_VALUE (sym, frag_now_fix ());
4387 S_SET_STORAGE_CLASS (sym, C_FCN);
4388 S_SET_NUMBER_AUXILIARY (sym, 1);
4389 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
4390 symbol_get_tc (sym)->output = 1;
4392 ppc_frob_label (sym);
4394 demand_empty_rest_of_line ();
4397 /* The .bi and .ei pseudo-ops. These take a string argument and
4398 generates a C_BINCL or C_EINCL symbol, which goes at the start of
4399 the symbol list. The value of .bi will be know when the next .bf
4405 static symbolS *last_biei;
4412 name = demand_copy_C_string (&len);
4414 /* The value of these symbols is actually file offset. Here we set
4415 the value to the index into the line number entries. In
4416 ppc_frob_symbols we set the fix_line field, which will cause BFD
4417 to do the right thing. */
4419 sym = symbol_make (name);
4420 /* obj-coff.c currently only handles line numbers correctly in the
4422 S_SET_SEGMENT (sym, text_section);
4423 S_SET_VALUE (sym, coff_n_line_nos);
4424 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4426 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
4427 symbol_get_tc (sym)->output = 1;
4435 for (look = last_biei ? last_biei : symbol_rootP;
4436 (look != (symbolS *) NULL
4437 && (S_GET_STORAGE_CLASS (look) == C_FILE
4438 || S_GET_STORAGE_CLASS (look) == C_BINCL
4439 || S_GET_STORAGE_CLASS (look) == C_EINCL));
4440 look = symbol_next (look))
4442 if (look != (symbolS *) NULL)
4444 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4445 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
4449 demand_empty_rest_of_line ();
4452 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
4453 There is one argument, which is a csect symbol. The value of the
4454 .bs symbol is the index of this csect symbol. */
4457 ppc_bs (int ignore ATTRIBUTE_UNUSED)
4464 if (ppc_current_block != NULL)
4465 as_bad (_("nested .bs blocks"));
4467 name = input_line_pointer;
4468 endc = get_symbol_end ();
4470 csect = symbol_find_or_make (name);
4472 *input_line_pointer = endc;
4474 sym = symbol_make (".bs");
4475 S_SET_SEGMENT (sym, now_seg);
4476 S_SET_STORAGE_CLASS (sym, C_BSTAT);
4477 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4478 symbol_get_tc (sym)->output = 1;
4480 symbol_get_tc (sym)->within = csect;
4482 ppc_frob_label (sym);
4484 ppc_current_block = sym;
4486 demand_empty_rest_of_line ();
4489 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
4492 ppc_es (int ignore ATTRIBUTE_UNUSED)
4496 if (ppc_current_block == NULL)
4497 as_bad (_(".es without preceding .bs"));
4499 sym = symbol_make (".es");
4500 S_SET_SEGMENT (sym, now_seg);
4501 S_SET_STORAGE_CLASS (sym, C_ESTAT);
4502 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4503 symbol_get_tc (sym)->output = 1;
4505 ppc_frob_label (sym);
4507 ppc_current_block = NULL;
4509 demand_empty_rest_of_line ();
4512 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
4516 ppc_bb (int ignore ATTRIBUTE_UNUSED)
4520 sym = symbol_make (".bb");
4521 S_SET_SEGMENT (sym, text_section);
4522 symbol_set_frag (sym, frag_now);
4523 S_SET_VALUE (sym, frag_now_fix ());
4524 S_SET_STORAGE_CLASS (sym, C_BLOCK);
4526 S_SET_NUMBER_AUXILIARY (sym, 1);
4527 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
4529 symbol_get_tc (sym)->output = 1;
4531 SF_SET_PROCESS (sym);
4533 ppc_frob_label (sym);
4535 demand_empty_rest_of_line ();
4538 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
4542 ppc_eb (int ignore ATTRIBUTE_UNUSED)
4546 sym = symbol_make (".eb");
4547 S_SET_SEGMENT (sym, text_section);
4548 symbol_set_frag (sym, frag_now);
4549 S_SET_VALUE (sym, frag_now_fix ());
4550 S_SET_STORAGE_CLASS (sym, C_BLOCK);
4551 S_SET_NUMBER_AUXILIARY (sym, 1);
4552 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
4553 symbol_get_tc (sym)->output = 1;
4555 SF_SET_PROCESS (sym);
4557 ppc_frob_label (sym);
4559 demand_empty_rest_of_line ();
4562 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
4566 ppc_bc (int ignore ATTRIBUTE_UNUSED)
4572 name = demand_copy_C_string (&len);
4573 sym = symbol_make (name);
4574 S_SET_SEGMENT (sym, ppc_coff_debug_section);
4575 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4576 S_SET_STORAGE_CLASS (sym, C_BCOMM);
4577 S_SET_VALUE (sym, 0);
4578 symbol_get_tc (sym)->output = 1;
4580 ppc_frob_label (sym);
4582 demand_empty_rest_of_line ();
4585 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
4588 ppc_ec (int ignore ATTRIBUTE_UNUSED)
4592 sym = symbol_make (".ec");
4593 S_SET_SEGMENT (sym, ppc_coff_debug_section);
4594 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4595 S_SET_STORAGE_CLASS (sym, C_ECOMM);
4596 S_SET_VALUE (sym, 0);
4597 symbol_get_tc (sym)->output = 1;
4599 ppc_frob_label (sym);
4601 demand_empty_rest_of_line ();
4604 /* The .toc pseudo-op. Switch to the .toc subsegment. */
4607 ppc_toc (int ignore ATTRIBUTE_UNUSED)
4609 if (ppc_toc_csect != (symbolS *) NULL)
4610 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
4617 subseg = ppc_data_subsegment;
4618 ++ppc_data_subsegment;
4620 subseg_new (segment_name (data_section), subseg);
4621 ppc_toc_frag = frag_now;
4623 sym = symbol_find_or_make ("TOC[TC0]");
4624 symbol_set_frag (sym, frag_now);
4625 S_SET_SEGMENT (sym, data_section);
4626 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4627 symbol_get_tc (sym)->subseg = subseg;
4628 symbol_get_tc (sym)->output = 1;
4629 symbol_get_tc (sym)->within = sym;
4631 ppc_toc_csect = sym;
4633 for (list = ppc_data_csects;
4634 symbol_get_tc (list)->next != (symbolS *) NULL;
4635 list = symbol_get_tc (list)->next)
4637 symbol_get_tc (list)->next = sym;
4639 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4640 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
4644 ppc_current_csect = ppc_toc_csect;
4646 demand_empty_rest_of_line ();
4649 /* The AIX assembler automatically aligns the operands of a .long or
4650 .short pseudo-op, and we want to be compatible. */
4653 ppc_xcoff_cons (int log_size)
4655 frag_align (log_size, 0, 0);
4656 record_alignment (now_seg, log_size);
4657 cons (1 << log_size);
4661 ppc_vbyte (int dummy ATTRIBUTE_UNUSED)
4666 (void) expression (&exp);
4668 if (exp.X_op != O_constant)
4670 as_bad (_("non-constant byte count"));
4674 byte_count = exp.X_add_number;
4676 if (*input_line_pointer != ',')
4678 as_bad (_("missing value"));
4682 ++input_line_pointer;
4687 ppc_xcoff_end (void)
4691 for (i = 0; i < XCOFF_DWSECT_NBR_NAMES; i++)
4693 struct dw_section *dws = &dw_sections[i];
4694 struct dw_subsection *dwss;
4696 if (dws->anon_subseg)
4698 dwss = dws->anon_subseg;
4699 dwss->link = dws->list_subseg;
4702 dwss = dws->list_subseg;
4704 for (; dwss != NULL; dwss = dwss->link)
4705 if (dwss->end_exp.X_add_symbol != NULL)
4707 subseg_set (dws->sect, dwss->subseg);
4708 symbol_set_value_now (dwss->end_exp.X_add_symbol);
4713 #endif /* OBJ_XCOFF */
4714 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
4716 /* The .tc pseudo-op. This is used when generating either XCOFF or
4717 ELF. This takes two or more arguments.
4719 When generating XCOFF output, the first argument is the name to
4720 give to this location in the toc; this will be a symbol with class
4721 TC. The rest of the arguments are N-byte values to actually put at
4722 this location in the TOC; often there is just one more argument, a
4723 relocatable symbol reference. The size of the value to store
4724 depends on target word size. A 32-bit target uses 4-byte values, a
4725 64-bit target uses 8-byte values.
4727 When not generating XCOFF output, the arguments are the same, but
4728 the first argument is simply ignored. */
4731 ppc_tc (int ignore ATTRIBUTE_UNUSED)
4735 /* Define the TOC symbol name. */
4741 if (ppc_toc_csect == (symbolS *) NULL
4742 || ppc_toc_csect != ppc_current_csect)
4744 as_bad (_(".tc not in .toc section"));
4745 ignore_rest_of_line ();
4749 name = input_line_pointer;
4750 endc = get_symbol_end ();
4752 sym = symbol_find_or_make (name);
4754 *input_line_pointer = endc;
4756 if (S_IS_DEFINED (sym))
4760 label = symbol_get_tc (ppc_current_csect)->within;
4761 if (symbol_get_tc (label)->symbol_class != XMC_TC0)
4763 as_bad (_(".tc with no label"));
4764 ignore_rest_of_line ();
4768 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
4769 symbol_set_frag (label, symbol_get_frag (sym));
4770 S_SET_VALUE (label, S_GET_VALUE (sym));
4772 while (! is_end_of_line[(unsigned char) *input_line_pointer])
4773 ++input_line_pointer;
4778 S_SET_SEGMENT (sym, now_seg);
4779 symbol_set_frag (sym, frag_now);
4780 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4781 symbol_get_tc (sym)->symbol_class = XMC_TC;
4782 symbol_get_tc (sym)->output = 1;
4784 ppc_frob_label (sym);
4787 #endif /* OBJ_XCOFF */
4791 /* Skip the TOC symbol name. */
4792 while (is_part_of_name (*input_line_pointer)
4793 || *input_line_pointer == ' '
4794 || *input_line_pointer == '['
4795 || *input_line_pointer == ']'
4796 || *input_line_pointer == '{'
4797 || *input_line_pointer == '}')
4798 ++input_line_pointer;
4800 /* Align to a four/eight byte boundary. */
4801 align = ppc_obj64 ? 3 : 2;
4802 frag_align (align, 0, 0);
4803 record_alignment (now_seg, align);
4804 #endif /* OBJ_ELF */
4806 if (*input_line_pointer != ',')
4807 demand_empty_rest_of_line ();
4810 ++input_line_pointer;
4811 cons (ppc_obj64 ? 8 : 4);
4815 /* Pseudo-op .machine. */
4818 ppc_machine (int ignore ATTRIBUTE_UNUSED)
4821 #define MAX_HISTORY 100
4822 static ppc_cpu_t *cpu_history;
4823 static int curr_hist;
4827 if (*input_line_pointer == '"')
4830 cpu_string = demand_copy_C_string (&len);
4835 cpu_string = input_line_pointer;
4836 c = get_symbol_end ();
4837 cpu_string = xstrdup (cpu_string);
4838 *input_line_pointer = c;
4841 if (cpu_string != NULL)
4843 ppc_cpu_t old_cpu = ppc_cpu;
4847 for (p = cpu_string; *p != 0; p++)
4850 if (strcmp (cpu_string, "push") == 0)
4852 if (cpu_history == NULL)
4853 cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history));
4855 if (curr_hist >= MAX_HISTORY)
4856 as_bad (_(".machine stack overflow"));
4858 cpu_history[curr_hist++] = ppc_cpu;
4860 else if (strcmp (cpu_string, "pop") == 0)
4863 as_bad (_(".machine stack underflow"));
4865 ppc_cpu = cpu_history[--curr_hist];
4867 else if ((new_cpu = ppc_parse_cpu (ppc_cpu, &sticky, cpu_string)) != 0)
4870 as_bad (_("invalid machine `%s'"), cpu_string);
4872 if (ppc_cpu != old_cpu)
4873 ppc_setup_opcodes ();
4876 demand_empty_rest_of_line ();
4878 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4882 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4884 /* Set the current section. */
4886 ppc_set_current_section (segT new)
4888 ppc_previous_section = ppc_current_section;
4889 ppc_current_section = new;
4892 /* pseudo-op: .previous
4893 behaviour: toggles the current section with the previous section.
4895 warnings: "No previous section" */
4898 ppc_previous (int ignore ATTRIBUTE_UNUSED)
4900 if (ppc_previous_section == NULL)
4902 as_warn (_("no previous section to return to, ignored."));
4906 subseg_set (ppc_previous_section, 0);
4908 ppc_set_current_section (ppc_previous_section);
4911 /* pseudo-op: .pdata
4912 behaviour: predefined read only data section
4916 initial: .section .pdata "adr3"
4917 a - don't know -- maybe a misprint
4918 d - initialized data
4920 3 - double word aligned (that would be 4 byte boundary)
4923 Tag index tables (also known as the function table) for exception
4924 handling, debugging, etc. */
4927 ppc_pdata (int ignore ATTRIBUTE_UNUSED)
4929 if (pdata_section == 0)
4931 pdata_section = subseg_new (".pdata", 0);
4933 bfd_set_section_flags (stdoutput, pdata_section,
4934 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4935 | SEC_READONLY | SEC_DATA ));
4937 bfd_set_section_alignment (stdoutput, pdata_section, 2);
4941 pdata_section = subseg_new (".pdata", 0);
4943 ppc_set_current_section (pdata_section);
4946 /* pseudo-op: .ydata
4947 behaviour: predefined read only data section
4951 initial: .section .ydata "drw3"
4952 a - don't know -- maybe a misprint
4953 d - initialized data
4955 3 - double word aligned (that would be 4 byte boundary)
4957 Tag tables (also known as the scope table) for exception handling,
4961 ppc_ydata (int ignore ATTRIBUTE_UNUSED)
4963 if (ydata_section == 0)
4965 ydata_section = subseg_new (".ydata", 0);
4966 bfd_set_section_flags (stdoutput, ydata_section,
4967 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4968 | SEC_READONLY | SEC_DATA ));
4970 bfd_set_section_alignment (stdoutput, ydata_section, 3);
4974 ydata_section = subseg_new (".ydata", 0);
4976 ppc_set_current_section (ydata_section);
4979 /* pseudo-op: .reldata
4980 behaviour: predefined read write data section
4981 double word aligned (4-byte)
4982 FIXME: relocation is applied to it
4983 FIXME: what's the difference between this and .data?
4986 initial: .section .reldata "drw3"
4987 d - initialized data
4990 3 - double word aligned (that would be 8 byte boundary)
4993 Like .data, but intended to hold data subject to relocation, such as
4994 function descriptors, etc. */
4997 ppc_reldata (int ignore ATTRIBUTE_UNUSED)
4999 if (reldata_section == 0)
5001 reldata_section = subseg_new (".reldata", 0);
5003 bfd_set_section_flags (stdoutput, reldata_section,
5004 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
5007 bfd_set_section_alignment (stdoutput, reldata_section, 2);
5011 reldata_section = subseg_new (".reldata", 0);
5013 ppc_set_current_section (reldata_section);
5016 /* pseudo-op: .rdata
5017 behaviour: predefined read only data section
5021 initial: .section .rdata "dr3"
5022 d - initialized data
5024 3 - double word aligned (that would be 4 byte boundary) */
5027 ppc_rdata (int ignore ATTRIBUTE_UNUSED)
5029 if (rdata_section == 0)
5031 rdata_section = subseg_new (".rdata", 0);
5032 bfd_set_section_flags (stdoutput, rdata_section,
5033 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
5034 | SEC_READONLY | SEC_DATA ));
5036 bfd_set_section_alignment (stdoutput, rdata_section, 2);
5040 rdata_section = subseg_new (".rdata", 0);
5042 ppc_set_current_section (rdata_section);
5045 /* pseudo-op: .ualong
5046 behaviour: much like .int, with the exception that no alignment is
5048 FIXME: test the alignment statement
5053 ppc_ualong (int ignore ATTRIBUTE_UNUSED)
5059 /* pseudo-op: .znop <symbol name>
5060 behaviour: Issue a nop instruction
5061 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
5062 the supplied symbol name.
5064 warnings: Missing symbol name */
5067 ppc_znop (int ignore ATTRIBUTE_UNUSED)
5070 const struct powerpc_opcode *opcode;
5077 /* Strip out the symbol name. */
5078 symbol_name = input_line_pointer;
5079 c = get_symbol_end ();
5081 name = xmalloc (input_line_pointer - symbol_name + 1);
5082 strcpy (name, symbol_name);
5084 sym = symbol_find_or_make (name);
5086 *input_line_pointer = c;
5090 /* Look up the opcode in the hash table. */
5091 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
5093 /* Stick in the nop. */
5094 insn = opcode->opcode;
5096 /* Write out the instruction. */
5098 md_number_to_chars (f, insn, 4);
5100 f - frag_now->fr_literal,
5105 BFD_RELOC_16_GOT_PCREL);
5115 ppc_pe_comm (int lcomm)
5124 name = input_line_pointer;
5125 c = get_symbol_end ();
5127 /* just after name is now '\0'. */
5128 p = input_line_pointer;
5131 if (*input_line_pointer != ',')
5133 as_bad (_("expected comma after symbol-name: rest of line ignored."));
5134 ignore_rest_of_line ();
5138 input_line_pointer++; /* skip ',' */
5139 if ((temp = get_absolute_expression ()) < 0)
5141 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
5142 ignore_rest_of_line ();
5148 /* The third argument to .comm is the alignment. */
5149 if (*input_line_pointer != ',')
5153 ++input_line_pointer;
5154 align = get_absolute_expression ();
5157 as_warn (_("ignoring bad alignment"));
5164 symbolP = symbol_find_or_make (name);
5167 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
5169 as_bad (_("ignoring attempt to re-define symbol `%s'."),
5170 S_GET_NAME (symbolP));
5171 ignore_rest_of_line ();
5175 if (S_GET_VALUE (symbolP))
5177 if (S_GET_VALUE (symbolP) != (valueT) temp)
5178 as_bad (_("length of .comm \"%s\" is already %ld. Not changed to %ld."),
5179 S_GET_NAME (symbolP),
5180 (long) S_GET_VALUE (symbolP),
5185 S_SET_VALUE (symbolP, (valueT) temp);
5186 S_SET_EXTERNAL (symbolP);
5187 S_SET_SEGMENT (symbolP, bfd_com_section_ptr);
5190 demand_empty_rest_of_line ();
5194 * implement the .section pseudo op:
5195 * .section name {, "flags"}
5197 * | +--- optional flags: 'b' for bss
5199 * +-- section name 'l' for lib
5203 * 'd' (apparently m88k for data)
5205 * But if the argument is not a quoted string, treat it as a
5206 * subsegment number.
5208 * FIXME: this is a copy of the section processing from obj-coff.c, with
5209 * additions/changes for the moto-pas assembler support. There are three
5212 * FIXME: I just noticed this. This doesn't work at all really. It it
5213 * setting bits that bfd probably neither understands or uses. The
5214 * correct approach (?) will have to incorporate extra fields attached
5215 * to the section to hold the system specific stuff. (krk)
5218 * 'a' - unknown - referred to in documentation, but no definition supplied
5219 * 'c' - section has code
5220 * 'd' - section has initialized data
5221 * 'u' - section has uninitialized data
5222 * 'i' - section contains directives (info)
5223 * 'n' - section can be discarded
5224 * 'R' - remove section at link time
5226 * Section Protection:
5227 * 'r' - section is readable
5228 * 'w' - section is writeable
5229 * 'x' - section is executable
5230 * 's' - section is sharable
5232 * Section Alignment:
5233 * '0' - align to byte boundary
5234 * '1' - align to halfword undary
5235 * '2' - align to word boundary
5236 * '3' - align to doubleword boundary
5237 * '4' - align to quadword boundary
5238 * '5' - align to 32 byte boundary
5239 * '6' - align to 64 byte boundary
5244 ppc_pe_section (int ignore ATTRIBUTE_UNUSED)
5246 /* Strip out the section name. */
5255 section_name = input_line_pointer;
5256 c = get_symbol_end ();
5258 name = xmalloc (input_line_pointer - section_name + 1);
5259 strcpy (name, section_name);
5261 *input_line_pointer = c;
5266 flags = SEC_NO_FLAGS;
5268 if (strcmp (name, ".idata$2") == 0)
5272 else if (strcmp (name, ".idata$3") == 0)
5276 else if (strcmp (name, ".idata$4") == 0)
5280 else if (strcmp (name, ".idata$5") == 0)
5284 else if (strcmp (name, ".idata$6") == 0)
5289 /* Default alignment to 16 byte boundary. */
5292 if (*input_line_pointer == ',')
5294 ++input_line_pointer;
5296 if (*input_line_pointer != '"')
5297 exp = get_absolute_expression ();
5300 ++input_line_pointer;
5301 while (*input_line_pointer != '"'
5302 && ! is_end_of_line[(unsigned char) *input_line_pointer])
5304 switch (*input_line_pointer)
5306 /* Section Contents */
5307 case 'a': /* unknown */
5308 as_bad (_("unsupported section attribute -- 'a'"));
5310 case 'c': /* code section */
5313 case 'd': /* section has initialized data */
5316 case 'u': /* section has uninitialized data */
5317 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
5321 case 'i': /* section contains directives (info) */
5322 /* FIXME: This is IMAGE_SCN_LNK_INFO
5324 flags |= SEC_HAS_CONTENTS;
5326 case 'n': /* section can be discarded */
5329 case 'R': /* Remove section at link time */
5330 flags |= SEC_NEVER_LOAD;
5332 #if IFLICT_BRAIN_DAMAGE
5333 /* Section Protection */
5334 case 'r': /* section is readable */
5335 flags |= IMAGE_SCN_MEM_READ;
5337 case 'w': /* section is writeable */
5338 flags |= IMAGE_SCN_MEM_WRITE;
5340 case 'x': /* section is executable */
5341 flags |= IMAGE_SCN_MEM_EXECUTE;
5343 case 's': /* section is sharable */
5344 flags |= IMAGE_SCN_MEM_SHARED;
5347 /* Section Alignment */
5348 case '0': /* align to byte boundary */
5349 flags |= IMAGE_SCN_ALIGN_1BYTES;
5352 case '1': /* align to halfword boundary */
5353 flags |= IMAGE_SCN_ALIGN_2BYTES;
5356 case '2': /* align to word boundary */
5357 flags |= IMAGE_SCN_ALIGN_4BYTES;
5360 case '3': /* align to doubleword boundary */
5361 flags |= IMAGE_SCN_ALIGN_8BYTES;
5364 case '4': /* align to quadword boundary */
5365 flags |= IMAGE_SCN_ALIGN_16BYTES;
5368 case '5': /* align to 32 byte boundary */
5369 flags |= IMAGE_SCN_ALIGN_32BYTES;
5372 case '6': /* align to 64 byte boundary */
5373 flags |= IMAGE_SCN_ALIGN_64BYTES;
5378 as_bad (_("unknown section attribute '%c'"),
5379 *input_line_pointer);
5382 ++input_line_pointer;
5384 if (*input_line_pointer == '"')
5385 ++input_line_pointer;
5389 sec = subseg_new (name, (subsegT) exp);
5391 ppc_set_current_section (sec);
5393 if (flags != SEC_NO_FLAGS)
5395 if (! bfd_set_section_flags (stdoutput, sec, flags))
5396 as_bad (_("error setting flags for \"%s\": %s"),
5397 bfd_section_name (stdoutput, sec),
5398 bfd_errmsg (bfd_get_error ()));
5401 bfd_set_section_alignment (stdoutput, sec, align);
5405 ppc_pe_function (int ignore ATTRIBUTE_UNUSED)
5411 name = input_line_pointer;
5412 endc = get_symbol_end ();
5414 ext_sym = symbol_find_or_make (name);
5416 *input_line_pointer = endc;
5418 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
5419 SF_SET_FUNCTION (ext_sym);
5420 SF_SET_PROCESS (ext_sym);
5421 coff_add_linesym (ext_sym);
5423 demand_empty_rest_of_line ();
5427 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED)
5429 if (tocdata_section == 0)
5431 tocdata_section = subseg_new (".tocd", 0);
5432 /* FIXME: section flags won't work. */
5433 bfd_set_section_flags (stdoutput, tocdata_section,
5434 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
5435 | SEC_READONLY | SEC_DATA));
5437 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
5441 rdata_section = subseg_new (".tocd", 0);
5444 ppc_set_current_section (tocdata_section);
5446 demand_empty_rest_of_line ();
5449 /* Don't adjust TOC relocs to use the section symbol. */
5452 ppc_pe_fix_adjustable (fixS *fix)
5454 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
5461 /* XCOFF specific symbol and file handling. */
5463 /* Canonicalize the symbol name. We use the to force the suffix, if
5464 any, to use square brackets, and to be in upper case. */
5467 ppc_canonicalize_symbol_name (char *name)
5471 if (ppc_stab_symbol)
5474 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
5488 for (s++; *s != '\0' && *s != brac; s++)
5491 if (*s == '\0' || s[1] != '\0')
5492 as_bad (_("bad symbol suffix"));
5500 /* Set the class of a symbol based on the suffix, if any. This is
5501 called whenever a new symbol is created. */
5504 ppc_symbol_new_hook (symbolS *sym)
5506 struct ppc_tc_sy *tc;
5509 tc = symbol_get_tc (sym);
5512 tc->symbol_class = -1;
5513 tc->real_name = NULL;
5520 if (ppc_stab_symbol)
5523 s = strchr (S_GET_NAME (sym), '[');
5524 if (s == (const char *) NULL)
5526 /* There is no suffix. */
5535 if (strcmp (s, "BS]") == 0)
5536 tc->symbol_class = XMC_BS;
5539 if (strcmp (s, "DB]") == 0)
5540 tc->symbol_class = XMC_DB;
5541 else if (strcmp (s, "DS]") == 0)
5542 tc->symbol_class = XMC_DS;
5545 if (strcmp (s, "GL]") == 0)
5546 tc->symbol_class = XMC_GL;
5549 if (strcmp (s, "PR]") == 0)
5550 tc->symbol_class = XMC_PR;
5553 if (strcmp (s, "RO]") == 0)
5554 tc->symbol_class = XMC_RO;
5555 else if (strcmp (s, "RW]") == 0)
5556 tc->symbol_class = XMC_RW;
5559 if (strcmp (s, "SV]") == 0)
5560 tc->symbol_class = XMC_SV;
5563 if (strcmp (s, "TC]") == 0)
5564 tc->symbol_class = XMC_TC;
5565 else if (strcmp (s, "TI]") == 0)
5566 tc->symbol_class = XMC_TI;
5567 else if (strcmp (s, "TB]") == 0)
5568 tc->symbol_class = XMC_TB;
5569 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
5570 tc->symbol_class = XMC_TC0;
5573 if (strcmp (s, "UA]") == 0)
5574 tc->symbol_class = XMC_UA;
5575 else if (strcmp (s, "UC]") == 0)
5576 tc->symbol_class = XMC_UC;
5579 if (strcmp (s, "XO]") == 0)
5580 tc->symbol_class = XMC_XO;
5584 if (tc->symbol_class == -1)
5585 as_bad (_("unrecognized symbol suffix"));
5588 /* Set the class of a label based on where it is defined. This
5589 handles symbols without suffixes. Also, move the symbol so that it
5590 follows the csect symbol. */
5593 ppc_frob_label (symbolS *sym)
5595 if (ppc_current_csect != (symbolS *) NULL)
5597 if (symbol_get_tc (sym)->symbol_class == -1)
5598 symbol_get_tc (sym)->symbol_class = symbol_get_tc (ppc_current_csect)->symbol_class;
5600 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
5601 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
5602 &symbol_rootP, &symbol_lastP);
5603 symbol_get_tc (ppc_current_csect)->within = sym;
5604 symbol_get_tc (sym)->within = ppc_current_csect;
5608 dwarf2_emit_label (sym);
5612 /* This variable is set by ppc_frob_symbol if any absolute symbols are
5613 seen. It tells ppc_adjust_symtab whether it needs to look through
5616 static bfd_boolean ppc_saw_abs;
5618 /* Change the name of a symbol just before writing it out. Set the
5619 real name if the .rename pseudo-op was used. Otherwise, remove any
5620 class suffix. Return 1 if the symbol should not be included in the
5624 ppc_frob_symbol (symbolS *sym)
5626 static symbolS *ppc_last_function;
5627 static symbolS *set_end;
5629 /* Discard symbols that should not be included in the output symbol
5631 if (! symbol_used_in_reloc_p (sym)
5632 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
5633 || (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5634 && ! symbol_get_tc (sym)->output
5635 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
5638 /* This one will disappear anyway. Don't make a csect sym for it. */
5639 if (sym == abs_section_sym)
5642 if (symbol_get_tc (sym)->real_name != (char *) NULL)
5643 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
5649 name = S_GET_NAME (sym);
5650 s = strchr (name, '[');
5651 if (s != (char *) NULL)
5657 snew = xmalloc (len + 1);
5658 memcpy (snew, name, len);
5661 S_SET_NAME (sym, snew);
5665 if (set_end != (symbolS *) NULL)
5667 SA_SET_SYM_ENDNDX (set_end, sym);
5671 if (SF_GET_FUNCTION (sym))
5673 if (ppc_last_function != (symbolS *) NULL)
5674 as_bad (_("two .function pseudo-ops with no intervening .ef"));
5675 ppc_last_function = sym;
5676 if (symbol_get_tc (sym)->u.size != (symbolS *) NULL)
5678 resolve_symbol_value (symbol_get_tc (sym)->u.size);
5679 SA_SET_SYM_FSIZE (sym,
5680 (long) S_GET_VALUE (symbol_get_tc (sym)->u.size));
5683 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
5684 && strcmp (S_GET_NAME (sym), ".ef") == 0)
5686 if (ppc_last_function == (symbolS *) NULL)
5687 as_bad (_(".ef with no preceding .function"));
5690 set_end = ppc_last_function;
5691 ppc_last_function = NULL;
5693 /* We don't have a C_EFCN symbol, but we need to force the
5694 COFF backend to believe that it has seen one. */
5695 coff_last_function = NULL;
5699 if (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5700 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
5701 && S_GET_STORAGE_CLASS (sym) != C_FILE
5702 && S_GET_STORAGE_CLASS (sym) != C_FCN
5703 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
5704 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
5705 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
5706 && S_GET_STORAGE_CLASS (sym) != C_BINCL
5707 && S_GET_STORAGE_CLASS (sym) != C_EINCL
5708 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
5709 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
5711 if (S_GET_STORAGE_CLASS (sym) == C_EXT
5712 || S_GET_STORAGE_CLASS (sym) == C_AIX_WEAKEXT
5713 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
5716 union internal_auxent *a;
5718 /* Create a csect aux. */
5719 i = S_GET_NUMBER_AUXILIARY (sym);
5720 S_SET_NUMBER_AUXILIARY (sym, i + 1);
5721 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
5722 if (symbol_get_tc (sym)->symbol_class == XMC_TC0)
5724 /* This is the TOC table. */
5725 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
5726 a->x_csect.x_scnlen.l = 0;
5727 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5729 else if (symbol_get_tc (sym)->subseg != 0)
5731 /* This is a csect symbol. x_scnlen is the size of the
5733 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
5734 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5735 S_GET_SEGMENT (sym))
5736 - S_GET_VALUE (sym));
5739 resolve_symbol_value (symbol_get_tc (sym)->next);
5740 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
5741 - S_GET_VALUE (sym));
5743 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
5745 else if (S_GET_SEGMENT (sym) == bss_section)
5747 /* This is a common symbol. */
5748 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
5749 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
5750 if (S_IS_EXTERNAL (sym))
5751 symbol_get_tc (sym)->symbol_class = XMC_RW;
5753 symbol_get_tc (sym)->symbol_class = XMC_BS;
5755 else if (S_GET_SEGMENT (sym) == absolute_section)
5757 /* This is an absolute symbol. The csect will be created by
5758 ppc_adjust_symtab. */
5760 a->x_csect.x_smtyp = XTY_LD;
5761 if (symbol_get_tc (sym)->symbol_class == -1)
5762 symbol_get_tc (sym)->symbol_class = XMC_XO;
5764 else if (! S_IS_DEFINED (sym))
5766 /* This is an external symbol. */
5767 a->x_csect.x_scnlen.l = 0;
5768 a->x_csect.x_smtyp = XTY_ER;
5770 else if (symbol_get_tc (sym)->symbol_class == XMC_TC)
5774 /* This is a TOC definition. x_scnlen is the size of the
5776 next = symbol_next (sym);
5777 while (symbol_get_tc (next)->symbol_class == XMC_TC0)
5778 next = symbol_next (next);
5779 if (next == (symbolS *) NULL
5780 || symbol_get_tc (next)->symbol_class != XMC_TC)
5782 if (ppc_after_toc_frag == (fragS *) NULL)
5783 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5785 - S_GET_VALUE (sym));
5787 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
5788 - S_GET_VALUE (sym));
5792 resolve_symbol_value (next);
5793 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
5794 - S_GET_VALUE (sym));
5796 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5802 /* This is a normal symbol definition. x_scnlen is the
5803 symbol index of the containing csect. */
5804 if (S_GET_SEGMENT (sym) == text_section)
5805 csect = ppc_text_csects;
5806 else if (S_GET_SEGMENT (sym) == data_section)
5807 csect = ppc_data_csects;
5811 /* Skip the initial dummy symbol. */
5812 csect = symbol_get_tc (csect)->next;
5814 if (csect == (symbolS *) NULL)
5816 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
5817 a->x_csect.x_scnlen.l = 0;
5821 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
5823 resolve_symbol_value (symbol_get_tc (csect)->next);
5824 if (S_GET_VALUE (symbol_get_tc (csect)->next)
5825 > S_GET_VALUE (sym))
5827 csect = symbol_get_tc (csect)->next;
5830 a->x_csect.x_scnlen.p =
5831 coffsymbol (symbol_get_bfdsym (csect))->native;
5832 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
5835 a->x_csect.x_smtyp = XTY_LD;
5838 a->x_csect.x_parmhash = 0;
5839 a->x_csect.x_snhash = 0;
5840 if (symbol_get_tc (sym)->symbol_class == -1)
5841 a->x_csect.x_smclas = XMC_PR;
5843 a->x_csect.x_smclas = symbol_get_tc (sym)->symbol_class;
5844 a->x_csect.x_stab = 0;
5845 a->x_csect.x_snstab = 0;
5847 /* Don't let the COFF backend resort these symbols. */
5848 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
5850 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
5852 /* We want the value to be the symbol index of the referenced
5853 csect symbol. BFD will do that for us if we set the right
5855 asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within);
5856 combined_entry_type *c = coffsymbol (bsym)->native;
5858 S_SET_VALUE (sym, (valueT) (size_t) c);
5859 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
5861 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
5866 block = symbol_get_tc (sym)->within;
5869 /* The value is the offset from the enclosing csect. */
5872 csect = symbol_get_tc (block)->within;
5873 resolve_symbol_value (csect);
5874 base = S_GET_VALUE (csect);
5879 S_SET_VALUE (sym, S_GET_VALUE (sym) - base);
5881 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
5882 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
5884 /* We want the value to be a file offset into the line numbers.
5885 BFD will do that for us if we set the right flags. We have
5886 already set the value correctly. */
5887 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
5893 /* Adjust the symbol table. This creates csect symbols for all
5894 absolute symbols. */
5897 ppc_adjust_symtab (void)
5904 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
5908 union internal_auxent *a;
5910 if (S_GET_SEGMENT (sym) != absolute_section)
5913 csect = symbol_create (".abs[XO]", absolute_section,
5914 S_GET_VALUE (sym), &zero_address_frag);
5915 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
5916 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
5917 i = S_GET_NUMBER_AUXILIARY (csect);
5918 S_SET_NUMBER_AUXILIARY (csect, i + 1);
5919 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
5920 a->x_csect.x_scnlen.l = 0;
5921 a->x_csect.x_smtyp = XTY_SD;
5922 a->x_csect.x_parmhash = 0;
5923 a->x_csect.x_snhash = 0;
5924 a->x_csect.x_smclas = XMC_XO;
5925 a->x_csect.x_stab = 0;
5926 a->x_csect.x_snstab = 0;
5928 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
5930 i = S_GET_NUMBER_AUXILIARY (sym);
5931 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
5932 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
5933 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
5936 ppc_saw_abs = FALSE;
5939 /* Set the VMA for a section. This is called on all the sections in
5943 ppc_frob_section (asection *sec)
5945 static bfd_vma vma = 0;
5947 /* Dwarf sections start at 0. */
5948 if (bfd_get_section_flags (NULL, sec) & SEC_DEBUGGING)
5951 vma = md_section_align (sec, vma);
5952 bfd_set_section_vma (stdoutput, sec, vma);
5953 vma += bfd_section_size (stdoutput, sec);
5956 #endif /* OBJ_XCOFF */
5959 md_atof (int type, char *litp, int *sizep)
5961 return ieee_md_atof (type, litp, sizep, target_big_endian);
5964 /* Write a value out to the object file, using the appropriate
5968 md_number_to_chars (char *buf, valueT val, int n)
5970 if (target_big_endian)
5971 number_to_chars_bigendian (buf, val, n);
5973 number_to_chars_littleendian (buf, val, n);
5976 /* Align a section (I don't know why this is machine dependent). */
5979 md_section_align (asection *seg ATTRIBUTE_UNUSED, valueT addr)
5984 int align = bfd_get_section_alignment (stdoutput, seg);
5986 return ((addr + (1 << align) - 1) & (-1 << align));
5990 /* We don't have any form of relaxing. */
5993 md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED,
5994 asection *seg ATTRIBUTE_UNUSED)
6000 /* Convert a machine dependent frag. We never generate these. */
6003 md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
6004 asection *sec ATTRIBUTE_UNUSED,
6005 fragS *fragp ATTRIBUTE_UNUSED)
6010 /* We have no need to default values of symbols. */
6013 md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
6018 /* Functions concerning relocs. */
6020 /* The location from which a PC relative jump should be calculated,
6021 given a PC relative reloc. */
6024 md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED)
6026 return fixp->fx_frag->fr_address + fixp->fx_where;
6031 /* This is called to see whether a fixup should be adjusted to use a
6032 section symbol. We take the opportunity to change a fixup against
6033 a symbol in the TOC subsegment into a reloc against the
6034 corresponding .tc symbol. */
6037 ppc_fix_adjustable (fixS *fix)
6039 valueT val = resolve_symbol_value (fix->fx_addsy);
6040 segT symseg = S_GET_SEGMENT (fix->fx_addsy);
6041 TC_SYMFIELD_TYPE *tc;
6043 if (symseg == absolute_section)
6046 /* Always adjust symbols in debugging sections. */
6047 if (bfd_get_section_flags (stdoutput, symseg) & SEC_DEBUGGING)
6050 if (ppc_toc_csect != (symbolS *) NULL
6051 && fix->fx_addsy != ppc_toc_csect
6052 && symseg == data_section
6053 && val >= ppc_toc_frag->fr_address
6054 && (ppc_after_toc_frag == (fragS *) NULL
6055 || val < ppc_after_toc_frag->fr_address))
6059 for (sy = symbol_next (ppc_toc_csect);
6060 sy != (symbolS *) NULL;
6061 sy = symbol_next (sy))
6063 TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy);
6065 if (sy_tc->symbol_class == XMC_TC0)
6067 if (sy_tc->symbol_class != XMC_TC)
6069 if (val == resolve_symbol_value (sy))
6072 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
6077 as_bad_where (fix->fx_file, fix->fx_line,
6078 _("symbol in .toc does not match any .tc"));
6081 /* Possibly adjust the reloc to be against the csect. */
6082 tc = symbol_get_tc (fix->fx_addsy);
6084 && tc->symbol_class != XMC_TC0
6085 && tc->symbol_class != XMC_TC
6086 && symseg != bss_section
6087 /* Don't adjust if this is a reloc in the toc section. */
6088 && (symseg != data_section
6089 || ppc_toc_csect == NULL
6090 || val < ppc_toc_frag->fr_address
6091 || (ppc_after_toc_frag != NULL
6092 && val >= ppc_after_toc_frag->fr_address)))
6094 symbolS *csect = tc->within;
6096 /* If the symbol was not declared by a label (eg: a section symbol),
6097 use the section instead of the csect. This doesn't happen in
6098 normal AIX assembly code. */
6100 csect = seg_info (symseg)->sym;
6102 fix->fx_offset += val - symbol_get_frag (csect)->fr_address;
6103 fix->fx_addsy = csect;
6108 /* Adjust a reloc against a .lcomm symbol to be against the base
6110 if (symseg == bss_section
6111 && ! S_IS_EXTERNAL (fix->fx_addsy))
6113 symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
6115 fix->fx_offset += val - resolve_symbol_value (sy);
6122 /* A reloc from one csect to another must be kept. The assembler
6123 will, of course, keep relocs between sections, and it will keep
6124 absolute relocs, but we need to force it to keep PC relative relocs
6125 between two csects in the same section. */
6128 ppc_force_relocation (fixS *fix)
6130 /* At this point fix->fx_addsy should already have been converted to
6131 a csect symbol. If the csect does not include the fragment, then
6132 we need to force the relocation. */
6134 && fix->fx_addsy != NULL
6135 && symbol_get_tc (fix->fx_addsy)->subseg != 0
6136 && ((symbol_get_frag (fix->fx_addsy)->fr_address
6137 > fix->fx_frag->fr_address)
6138 || (symbol_get_tc (fix->fx_addsy)->next != NULL
6139 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
6140 <= fix->fx_frag->fr_address))))
6143 return generic_force_reloc (fix);
6147 ppc_new_dot_label (symbolS *sym)
6149 /* Anchor this label to the current csect for relocations. */
6150 symbol_get_tc (sym)->within = ppc_current_csect;
6153 #endif /* OBJ_XCOFF */
6156 /* If this function returns non-zero, it guarantees that a relocation
6157 will be emitted for a fixup. */
6160 ppc_force_relocation (fixS *fix)
6162 /* Branch prediction relocations must force a relocation, as must
6163 the vtable description relocs. */
6164 switch (fix->fx_r_type)
6166 case BFD_RELOC_PPC_B16_BRTAKEN:
6167 case BFD_RELOC_PPC_B16_BRNTAKEN:
6168 case BFD_RELOC_PPC_BA16_BRTAKEN:
6169 case BFD_RELOC_PPC_BA16_BRNTAKEN:
6170 case BFD_RELOC_24_PLT_PCREL:
6171 case BFD_RELOC_PPC64_TOC:
6177 if (fix->fx_r_type >= BFD_RELOC_PPC_TLS
6178 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)
6181 return generic_force_reloc (fix);
6185 ppc_fix_adjustable (fixS *fix)
6187 return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
6188 && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
6189 && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
6190 && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
6191 && fix->fx_r_type != BFD_RELOC_PPC64_GOT16_DS
6192 && fix->fx_r_type != BFD_RELOC_PPC64_GOT16_LO_DS
6193 && fix->fx_r_type != BFD_RELOC_GPREL16
6194 && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT
6195 && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY
6196 && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS
6197 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA));
6202 ppc_frag_check (struct frag *fragP)
6204 if (!fragP->has_code)
6207 if (ppc_mach() == bfd_mach_ppc_vle)
6209 if (((fragP->fr_address + fragP->insn_addr) & 1) != 0)
6210 as_bad (_("instruction address is not a multiple of 2"));
6214 if (((fragP->fr_address + fragP->insn_addr) & 3) != 0)
6215 as_bad (_("instruction address is not a multiple of 4"));
6219 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
6220 rs_align_code frag. */
6223 ppc_handle_align (struct frag *fragP)
6225 valueT count = (fragP->fr_next->fr_address
6226 - (fragP->fr_address + fragP->fr_fix));
6228 if (ppc_mach() == bfd_mach_ppc_vle && count != 0 && (count & 1) == 0)
6230 char *dest = fragP->fr_literal + fragP->fr_fix;
6233 md_number_to_chars (dest, 0x4400, 2);
6235 else if (count != 0 && (count & 3) == 0)
6237 char *dest = fragP->fr_literal + fragP->fr_fix;
6241 if (count > 4 * nop_limit && count < 0x2000000)
6245 /* Make a branch, then follow with nops. Insert another
6246 frag to handle the nops. */
6247 md_number_to_chars (dest, 0x48000000 + count, 4);
6252 rest = xmalloc (SIZEOF_STRUCT_FRAG + 4);
6253 memcpy (rest, fragP, SIZEOF_STRUCT_FRAG);
6254 fragP->fr_next = rest;
6256 rest->fr_address += rest->fr_fix + 4;
6258 /* If we leave the next frag as rs_align_code we'll come here
6259 again, resulting in a bunch of branches rather than a
6260 branch followed by nops. */
6261 rest->fr_type = rs_align;
6262 dest = rest->fr_literal;
6265 md_number_to_chars (dest, 0x60000000, 4);
6267 if ((ppc_cpu & PPC_OPCODE_POWER6) != 0
6268 || (ppc_cpu & PPC_OPCODE_POWER7) != 0)
6270 /* For power6 and power7, we want the last nop to be a group
6271 terminating one. Do this by inserting an rs_fill frag immediately
6272 after this one, with its address set to the last nop location.
6273 This will automatically reduce the number of nops in the current
6277 struct frag *group_nop = xmalloc (SIZEOF_STRUCT_FRAG + 4);
6279 memcpy (group_nop, fragP, SIZEOF_STRUCT_FRAG);
6280 group_nop->fr_address = group_nop->fr_next->fr_address - 4;
6281 group_nop->fr_fix = 0;
6282 group_nop->fr_offset = 1;
6283 group_nop->fr_type = rs_fill;
6284 fragP->fr_next = group_nop;
6285 dest = group_nop->fr_literal;
6288 if ((ppc_cpu & PPC_OPCODE_POWER7) != 0)
6290 if (ppc_cpu & PPC_OPCODE_E500MC)
6291 /* e500mc group terminating nop: "ori 0,0,0". */
6292 md_number_to_chars (dest, 0x60000000, 4);
6294 /* power7 group terminating nop: "ori 2,2,0". */
6295 md_number_to_chars (dest, 0x60420000, 4);
6298 /* power6 group terminating nop: "ori 1,1,0". */
6299 md_number_to_chars (dest, 0x60210000, 4);
6304 /* Apply a fixup to the object code. This is called for all the
6305 fixups we generated by the calls to fix_new_exp, above. */
6308 md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
6310 valueT value = * valP;
6313 if (fixP->fx_addsy != NULL)
6315 /* Hack around bfd_install_relocation brain damage. */
6317 value += fixP->fx_frag->fr_address + fixP->fx_where;
6322 /* FIXME FIXME FIXME: The value we are passed in *valP includes
6323 the symbol values. If we are doing this relocation the code in
6324 write.c is going to call bfd_install_relocation, which is also
6325 going to use the symbol value. That means that if the reloc is
6326 fully resolved we want to use *valP since bfd_install_relocation is
6328 However, if the reloc is not fully resolved we do not want to
6329 use *valP, and must use fx_offset instead. If the relocation
6330 is PC-relative, we then need to re-apply md_pcrel_from_section
6331 to this new relocation value. */
6332 if (fixP->fx_addsy == (symbolS *) NULL)
6337 value = fixP->fx_offset;
6339 value -= md_pcrel_from_section (fixP, seg);
6343 if (fixP->fx_subsy != (symbolS *) NULL)
6345 /* We can't actually support subtracting a symbol. */
6346 as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
6349 if (fixP->fx_pcrel_adjust != 0)
6351 /* Handle relocs in an insn. */
6353 int opindex = fixP->fx_pcrel_adjust & 0xff;
6354 const struct powerpc_operand *operand = &powerpc_operands[opindex];
6360 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
6361 does not generate a reloc. It uses the offset of `sym' within its
6362 csect. Other usages, such as `.long sym', generate relocs. This
6363 is the documented behaviour of non-TOC symbols. */
6364 if ((operand->flags & PPC_OPERAND_PARENS) != 0
6365 && (operand->bitm & 0xfff0) == 0xfff0
6366 && operand->shift == 0
6367 && (operand->insert == NULL || ppc_obj64)
6368 && fixP->fx_addsy != NULL
6369 && symbol_get_tc (fixP->fx_addsy)->subseg != 0
6370 && symbol_get_tc (fixP->fx_addsy)->symbol_class != XMC_TC
6371 && symbol_get_tc (fixP->fx_addsy)->symbol_class != XMC_TC0
6372 && S_GET_SEGMENT (fixP->fx_addsy) != bss_section)
6374 value = fixP->fx_offset;
6379 switch (fixP->fx_r_type)
6382 case BFD_RELOC_PPC64_ADDR16_LO_DS:
6387 case BFD_RELOC_LO16:
6389 fixP->fx_r_type = BFD_RELOC_LO16_PCREL;
6391 case BFD_RELOC_LO16_PCREL:
6392 fieldval = SEX16 (value);
6395 case BFD_RELOC_HI16:
6397 fixP->fx_r_type = BFD_RELOC_HI16_PCREL;
6399 case BFD_RELOC_HI16_PCREL:
6400 fieldval = SEX16 (PPC_HI (value));
6403 case BFD_RELOC_HI16_S:
6405 fixP->fx_r_type = BFD_RELOC_HI16_S_PCREL;
6407 case BFD_RELOC_HI16_S_PCREL:
6408 fieldval = SEX16 (PPC_HA (value));
6412 case BFD_RELOC_PPC64_HIGHER:
6415 fieldval = SEX16 (PPC_HIGHER (value));
6418 case BFD_RELOC_PPC64_HIGHER_S:
6421 fieldval = SEX16 (PPC_HIGHERA (value));
6424 case BFD_RELOC_PPC64_HIGHEST:
6427 fieldval = SEX16 (PPC_HIGHEST (value));
6430 case BFD_RELOC_PPC64_HIGHEST_S:
6433 fieldval = SEX16 (PPC_HIGHESTA (value));
6436 /* The following relocs can't be calculated by the assembler.
6437 Leave the field zero. */
6438 case BFD_RELOC_PPC_TPREL16:
6439 case BFD_RELOC_PPC_TPREL16_LO:
6440 case BFD_RELOC_PPC_TPREL16_HI:
6441 case BFD_RELOC_PPC_TPREL16_HA:
6442 case BFD_RELOC_PPC_DTPREL16:
6443 case BFD_RELOC_PPC_DTPREL16_LO:
6444 case BFD_RELOC_PPC_DTPREL16_HI:
6445 case BFD_RELOC_PPC_DTPREL16_HA:
6446 case BFD_RELOC_PPC_GOT_TLSGD16:
6447 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
6448 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
6449 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
6450 case BFD_RELOC_PPC_GOT_TLSLD16:
6451 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
6452 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
6453 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
6454 case BFD_RELOC_PPC_GOT_TPREL16:
6455 case BFD_RELOC_PPC_GOT_TPREL16_LO:
6456 case BFD_RELOC_PPC_GOT_TPREL16_HI:
6457 case BFD_RELOC_PPC_GOT_TPREL16_HA:
6458 case BFD_RELOC_PPC_GOT_DTPREL16:
6459 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
6460 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
6461 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
6462 case BFD_RELOC_PPC64_TPREL16_DS:
6463 case BFD_RELOC_PPC64_TPREL16_LO_DS:
6464 case BFD_RELOC_PPC64_TPREL16_HIGHER:
6465 case BFD_RELOC_PPC64_TPREL16_HIGHERA:
6466 case BFD_RELOC_PPC64_TPREL16_HIGHEST:
6467 case BFD_RELOC_PPC64_TPREL16_HIGHESTA:
6468 case BFD_RELOC_PPC64_DTPREL16_DS:
6469 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
6470 case BFD_RELOC_PPC64_DTPREL16_HIGHER:
6471 case BFD_RELOC_PPC64_DTPREL16_HIGHERA:
6472 case BFD_RELOC_PPC64_DTPREL16_HIGHEST:
6473 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA:
6474 gas_assert (fixP->fx_addsy != NULL);
6475 S_SET_THREAD_LOCAL (fixP->fx_addsy);
6481 /* These also should leave the field zero for the same
6482 reason. Note that older versions of gas wrote values
6483 here. If we want to go back to the old behaviour, then
6484 all _LO and _LO_DS cases will need to be treated like
6485 BFD_RELOC_LO16_PCREL above. Similarly for _HI etc. */
6486 case BFD_RELOC_16_GOTOFF:
6487 case BFD_RELOC_LO16_GOTOFF:
6488 case BFD_RELOC_HI16_GOTOFF:
6489 case BFD_RELOC_HI16_S_GOTOFF:
6490 case BFD_RELOC_LO16_PLTOFF:
6491 case BFD_RELOC_HI16_PLTOFF:
6492 case BFD_RELOC_HI16_S_PLTOFF:
6493 case BFD_RELOC_GPREL16:
6494 case BFD_RELOC_16_BASEREL:
6495 case BFD_RELOC_LO16_BASEREL:
6496 case BFD_RELOC_HI16_BASEREL:
6497 case BFD_RELOC_HI16_S_BASEREL:
6498 case BFD_RELOC_PPC_TOC16:
6499 case BFD_RELOC_PPC64_TOC16_LO:
6500 case BFD_RELOC_PPC64_TOC16_HI:
6501 case BFD_RELOC_PPC64_TOC16_HA:
6502 case BFD_RELOC_PPC64_PLTGOT16:
6503 case BFD_RELOC_PPC64_PLTGOT16_LO:
6504 case BFD_RELOC_PPC64_PLTGOT16_HI:
6505 case BFD_RELOC_PPC64_PLTGOT16_HA:
6506 case BFD_RELOC_PPC64_GOT16_DS:
6507 case BFD_RELOC_PPC64_GOT16_LO_DS:
6508 case BFD_RELOC_PPC64_PLT16_LO_DS:
6509 case BFD_RELOC_PPC64_SECTOFF_DS:
6510 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
6511 case BFD_RELOC_PPC64_TOC16_DS:
6512 case BFD_RELOC_PPC64_TOC16_LO_DS:
6513 case BFD_RELOC_PPC64_PLTGOT16_DS:
6514 case BFD_RELOC_PPC64_PLTGOT16_LO_DS:
6515 case BFD_RELOC_PPC_EMB_NADDR16:
6516 case BFD_RELOC_PPC_EMB_NADDR16_LO:
6517 case BFD_RELOC_PPC_EMB_NADDR16_HI:
6518 case BFD_RELOC_PPC_EMB_NADDR16_HA:
6519 case BFD_RELOC_PPC_EMB_SDAI16:
6520 case BFD_RELOC_PPC_EMB_SDA2I16:
6521 case BFD_RELOC_PPC_EMB_SDA2REL:
6522 case BFD_RELOC_PPC_EMB_SDA21:
6523 case BFD_RELOC_PPC_EMB_MRKREF:
6524 case BFD_RELOC_PPC_EMB_RELSEC16:
6525 case BFD_RELOC_PPC_EMB_RELST_LO:
6526 case BFD_RELOC_PPC_EMB_RELST_HI:
6527 case BFD_RELOC_PPC_EMB_RELST_HA:
6528 case BFD_RELOC_PPC_EMB_BIT_FLD:
6529 case BFD_RELOC_PPC_EMB_RELSDA:
6530 case BFD_RELOC_PPC_VLE_SDA21:
6531 case BFD_RELOC_PPC_VLE_SDA21_LO:
6532 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
6533 case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
6534 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
6535 case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
6536 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
6537 case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
6538 gas_assert (fixP->fx_addsy != NULL);
6541 case BFD_RELOC_PPC_TLS:
6542 case BFD_RELOC_PPC_TLSGD:
6543 case BFD_RELOC_PPC_TLSLD:
6555 /* powerpc uses RELA style relocs, so if emitting a reloc the field
6556 contents can stay at zero. */
6557 #define APPLY_RELOC fixP->fx_done
6559 #define APPLY_RELOC 1
6561 if ((fieldval != 0 && APPLY_RELOC) || operand->insert != NULL)
6563 /* Fetch the instruction, insert the fully resolved operand
6564 value, and stuff the instruction back again. */
6565 where = fixP->fx_frag->fr_literal + fixP->fx_where;
6566 if (target_big_endian)
6568 if (fixP->fx_size == 4)
6569 insn = bfd_getb32 ((unsigned char *) where);
6571 insn = bfd_getb16 ((unsigned char *) where);
6575 if (fixP->fx_size == 4)
6576 insn = bfd_getl32 ((unsigned char *) where);
6578 insn = bfd_getl16 ((unsigned char *) where);
6580 insn = ppc_insert_operand (insn, operand, fieldval,
6581 fixP->tc_fix_data.ppc_cpu,
6582 fixP->fx_file, fixP->fx_line);
6583 if (target_big_endian)
6585 if (fixP->fx_size == 4)
6586 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
6588 bfd_putb16 ((bfd_vma) insn, (unsigned char *) where);
6592 if (fixP->fx_size == 4)
6593 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
6595 bfd_putl16 ((bfd_vma) insn, (unsigned char *) where);
6600 /* Nothing else to do here. */
6603 gas_assert (fixP->fx_addsy != NULL);
6604 if (fixP->fx_r_type == BFD_RELOC_UNUSED)
6609 /* Use expr_symbol_where to see if this is an expression
6611 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
6612 as_bad_where (fixP->fx_file, fixP->fx_line,
6613 _("unresolved expression that must be resolved"));
6615 as_bad_where (fixP->fx_file, fixP->fx_line,
6616 _("unsupported relocation against %s"),
6617 S_GET_NAME (fixP->fx_addsy));
6625 offsetT fieldval = value;
6627 /* Handle relocs in data. */
6628 switch (fixP->fx_r_type)
6630 case BFD_RELOC_CTOR:
6637 fixP->fx_r_type = BFD_RELOC_32_PCREL;
6640 case BFD_RELOC_32_PCREL:
6648 fixP->fx_r_type = BFD_RELOC_64_PCREL;
6651 case BFD_RELOC_64_PCREL:
6657 fixP->fx_r_type = BFD_RELOC_16_PCREL;
6660 case BFD_RELOC_16_PCREL:
6675 /* Use expr_symbol_where to see if this is an
6676 expression symbol. */
6677 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
6678 as_bad_where (fixP->fx_file, fixP->fx_line,
6679 _("unresolved expression that must"
6682 as_bad_where (fixP->fx_file, fixP->fx_line,
6683 _("cannot emit PC relative %s relocation"
6685 bfd_get_reloc_code_name (fixP->fx_r_type),
6686 S_GET_NAME (fixP->fx_addsy));
6689 as_bad_where (fixP->fx_file, fixP->fx_line,
6690 _("unable to resolve expression"));
6697 case BFD_RELOC_VTABLE_INHERIT:
6699 && !S_IS_DEFINED (fixP->fx_addsy)
6700 && !S_IS_WEAK (fixP->fx_addsy))
6701 S_SET_WEAK (fixP->fx_addsy);
6704 case BFD_RELOC_VTABLE_ENTRY:
6709 /* These can appear with @l etc. in data. */
6710 case BFD_RELOC_LO16:
6712 fixP->fx_r_type = BFD_RELOC_LO16_PCREL;
6713 case BFD_RELOC_LO16_PCREL:
6717 case BFD_RELOC_HI16:
6719 fixP->fx_r_type = BFD_RELOC_HI16_PCREL;
6720 case BFD_RELOC_HI16_PCREL:
6722 fieldval = PPC_HI (value);
6725 case BFD_RELOC_HI16_S:
6727 fixP->fx_r_type = BFD_RELOC_HI16_S_PCREL;
6728 case BFD_RELOC_HI16_S_PCREL:
6730 fieldval = PPC_HA (value);
6733 case BFD_RELOC_PPC64_HIGHER:
6737 fieldval = PPC_HIGHER (value);
6740 case BFD_RELOC_PPC64_HIGHER_S:
6744 fieldval = PPC_HIGHERA (value);
6747 case BFD_RELOC_PPC64_HIGHEST:
6751 fieldval = PPC_HIGHEST (value);
6754 case BFD_RELOC_PPC64_HIGHEST_S:
6758 fieldval = PPC_HIGHESTA (value);
6761 case BFD_RELOC_PPC_DTPMOD:
6762 case BFD_RELOC_PPC_TPREL:
6763 case BFD_RELOC_PPC_DTPREL:
6764 S_SET_THREAD_LOCAL (fixP->fx_addsy);
6767 /* Just punt all of these to the linker. */
6768 case BFD_RELOC_PPC_B16_BRTAKEN:
6769 case BFD_RELOC_PPC_B16_BRNTAKEN:
6770 case BFD_RELOC_16_GOTOFF:
6771 case BFD_RELOC_LO16_GOTOFF:
6772 case BFD_RELOC_HI16_GOTOFF:
6773 case BFD_RELOC_HI16_S_GOTOFF:
6774 case BFD_RELOC_LO16_PLTOFF:
6775 case BFD_RELOC_HI16_PLTOFF:
6776 case BFD_RELOC_HI16_S_PLTOFF:
6777 case BFD_RELOC_PPC_COPY:
6778 case BFD_RELOC_PPC_GLOB_DAT:
6779 case BFD_RELOC_16_BASEREL:
6780 case BFD_RELOC_LO16_BASEREL:
6781 case BFD_RELOC_HI16_BASEREL:
6782 case BFD_RELOC_HI16_S_BASEREL:
6783 case BFD_RELOC_PPC_TLS:
6784 case BFD_RELOC_PPC_DTPREL16_LO:
6785 case BFD_RELOC_PPC_DTPREL16_HI:
6786 case BFD_RELOC_PPC_DTPREL16_HA:
6787 case BFD_RELOC_PPC_TPREL16_LO:
6788 case BFD_RELOC_PPC_TPREL16_HI:
6789 case BFD_RELOC_PPC_TPREL16_HA:
6790 case BFD_RELOC_PPC_GOT_TLSGD16:
6791 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
6792 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
6793 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
6794 case BFD_RELOC_PPC_GOT_TLSLD16:
6795 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
6796 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
6797 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
6798 case BFD_RELOC_PPC_GOT_DTPREL16:
6799 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
6800 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
6801 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
6802 case BFD_RELOC_PPC_GOT_TPREL16:
6803 case BFD_RELOC_PPC_GOT_TPREL16_LO:
6804 case BFD_RELOC_PPC_GOT_TPREL16_HI:
6805 case BFD_RELOC_PPC_GOT_TPREL16_HA:
6806 case BFD_RELOC_24_PLT_PCREL:
6807 case BFD_RELOC_PPC_LOCAL24PC:
6808 case BFD_RELOC_32_PLT_PCREL:
6809 case BFD_RELOC_GPREL16:
6810 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
6811 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
6812 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
6813 case BFD_RELOC_PPC_EMB_NADDR32:
6814 case BFD_RELOC_PPC_EMB_NADDR16:
6815 case BFD_RELOC_PPC_EMB_NADDR16_LO:
6816 case BFD_RELOC_PPC_EMB_NADDR16_HI:
6817 case BFD_RELOC_PPC_EMB_NADDR16_HA:
6818 case BFD_RELOC_PPC_EMB_SDAI16:
6819 case BFD_RELOC_PPC_EMB_SDA2REL:
6820 case BFD_RELOC_PPC_EMB_SDA2I16:
6821 case BFD_RELOC_PPC_EMB_SDA21:
6822 case BFD_RELOC_PPC_VLE_SDA21_LO:
6823 case BFD_RELOC_PPC_EMB_MRKREF:
6824 case BFD_RELOC_PPC_EMB_RELSEC16:
6825 case BFD_RELOC_PPC_EMB_RELST_LO:
6826 case BFD_RELOC_PPC_EMB_RELST_HI:
6827 case BFD_RELOC_PPC_EMB_RELST_HA:
6828 case BFD_RELOC_PPC_EMB_BIT_FLD:
6829 case BFD_RELOC_PPC_EMB_RELSDA:
6830 case BFD_RELOC_PPC64_TOC:
6831 case BFD_RELOC_PPC_TOC16:
6832 case BFD_RELOC_PPC64_TOC16_LO:
6833 case BFD_RELOC_PPC64_TOC16_HI:
6834 case BFD_RELOC_PPC64_TOC16_HA:
6835 case BFD_RELOC_PPC64_DTPREL16_HIGHER:
6836 case BFD_RELOC_PPC64_DTPREL16_HIGHERA:
6837 case BFD_RELOC_PPC64_DTPREL16_HIGHEST:
6838 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA:
6839 case BFD_RELOC_PPC64_TPREL16_HIGHER:
6840 case BFD_RELOC_PPC64_TPREL16_HIGHERA:
6841 case BFD_RELOC_PPC64_TPREL16_HIGHEST:
6842 case BFD_RELOC_PPC64_TPREL16_HIGHESTA:
6848 case BFD_RELOC_NONE:
6854 _("Gas failure, reloc value %d\n"), fixP->fx_r_type);
6859 if (size && APPLY_RELOC)
6860 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6865 ppc_elf_validate_fix (fixP, seg);
6866 fixP->fx_addnumber = value;
6868 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6869 from the section contents. If we are going to be emitting a reloc
6870 then the section contents are immaterial, so don't warn if they
6871 happen to overflow. Leave such warnings to ld. */
6874 fixP->fx_no_overflow = 1;
6876 /* Arrange to emit .TOC. as a normal symbol if used in anything
6877 but .TOC.@tocbase. */
6879 && fixP->fx_r_type != BFD_RELOC_PPC64_TOC
6880 && fixP->fx_addsy != NULL
6881 && strcmp (S_GET_NAME (fixP->fx_addsy), ".TOC.") == 0)
6882 symbol_get_bfdsym (fixP->fx_addsy)->flags |= BSF_KEEP;
6885 if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
6886 fixP->fx_addnumber = 0;
6890 fixP->fx_addnumber = 0;
6892 /* We want to use the offset within the toc, not the actual VMA
6894 fixP->fx_addnumber =
6895 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy))
6896 - S_GET_VALUE (ppc_toc_csect);
6902 /* Generate a reloc for a fixup. */
6905 tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
6909 reloc = (arelent *) xmalloc (sizeof (arelent));
6911 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
6912 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
6913 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
6914 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
6915 if (reloc->howto == (reloc_howto_type *) NULL)
6917 as_bad_where (fixp->fx_file, fixp->fx_line,
6918 _("reloc %d not supported by object file format"),
6919 (int) fixp->fx_r_type);
6922 reloc->addend = fixp->fx_addnumber;
6928 ppc_cfi_frame_initial_instructions (void)
6930 cfi_add_CFA_def_cfa (1, 0);
6934 tc_ppc_regname_to_dw2regnum (char *regname)
6936 unsigned int regnum = -1;
6940 static struct { char *name; int dw2regnum; } regnames[] =
6942 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6943 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6944 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6945 { "spe_acc", 111 }, { "spefscr", 112 }
6948 for (i = 0; i < ARRAY_SIZE (regnames); ++i)
6949 if (strcmp (regnames[i].name, regname) == 0)
6950 return regnames[i].dw2regnum;
6952 if (regname[0] == 'r' || regname[0] == 'f' || regname[0] == 'v')
6954 p = regname + 1 + (regname[1] == '.');
6955 regnum = strtoul (p, &q, 10);
6956 if (p == q || *q || regnum >= 32)
6958 if (regname[0] == 'f')
6960 else if (regname[0] == 'v')
6963 else if (regname[0] == 'c' && regname[1] == 'r')
6965 p = regname + 2 + (regname[2] == '.');
6966 if (p[0] < '0' || p[0] > '7' || p[1])
6968 regnum = p[0] - '0' + 68;