sysv4.h revision 110611
1/* Target definitions for GNU compiler for PowerPC running System V.4 2 Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2003 3 Free Software Foundation, Inc. 4 Contributed by Cygnus Support. 5 6This file is part of GNU CC. 7 8GNU CC is free software; you can redistribute it and/or modify 9it under the terms of the GNU General Public License as published by 10the Free Software Foundation; either version 2, or (at your option) 11any later version. 12 13GNU CC is distributed in the hope that it will be useful, 14but WITHOUT ANY WARRANTY; without even the implied warranty of 15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16GNU General Public License for more details. 17 18You should have received a copy of the GNU General Public License 19along with GNU CC; see the file COPYING. If not, write to 20the Free Software Foundation, 59 Temple Place - Suite 330, 21Boston, MA 02111-1307, USA. */ 22 23 24/* Yes! We are ELF. */ 25#define TARGET_OBJECT_FORMAT OBJECT_ELF 26 27/* Default ABI to compile code for. */ 28#define DEFAULT_ABI rs6000_current_abi 29 30/* Default ABI to use. */ 31#define RS6000_ABI_NAME "sysv" 32 33/* Override rs6000.h definition. */ 34#undef ASM_DEFAULT_SPEC 35#define ASM_DEFAULT_SPEC "-mppc" 36 37/* Override rs6000.h definition. */ 38#undef CPP_DEFAULT_SPEC 39#define CPP_DEFAULT_SPEC "-D_ARCH_PPC" 40 41/* Small data support types. */ 42enum rs6000_sdata_type { 43 SDATA_NONE, /* No small data support. */ 44 SDATA_DATA, /* Just put data in .sbss/.sdata, don't use relocs. */ 45 SDATA_SYSV, /* Use r13 to point to .sdata/.sbss. */ 46 SDATA_EABI /* Use r13 like above, r2 points to .sdata2/.sbss2. */ 47}; 48 49extern enum rs6000_sdata_type rs6000_sdata; 50 51/* V.4/eabi switches. */ 52#define MASK_NO_BITFIELD_TYPE 0x40000000 /* Set PCC_BITFIELD_TYPE_MATTERS to 0. */ 53#define MASK_STRICT_ALIGN 0x20000000 /* Set STRICT_ALIGNMENT to 1. */ 54#define MASK_RELOCATABLE 0x10000000 /* GOT pointers are PC relative. */ 55#define MASK_EABI 0x08000000 /* Adhere to eabi, not System V spec. */ 56#define MASK_LITTLE_ENDIAN 0x04000000 /* Target is little endian. */ 57#define MASK_REGNAMES 0x02000000 /* Use alternate register names. */ 58#define MASK_PROTOTYPE 0x01000000 /* Only prototyped fcns pass variable args. */ 59#define MASK_NO_BITFIELD_WORD 0x00800000 /* Bitfields cannot cross word boundaries */ 60 61#define TARGET_NO_BITFIELD_TYPE (target_flags & MASK_NO_BITFIELD_TYPE) 62#define TARGET_STRICT_ALIGN (target_flags & MASK_STRICT_ALIGN) 63#define TARGET_RELOCATABLE (target_flags & MASK_RELOCATABLE) 64#define TARGET_EABI (target_flags & MASK_EABI) 65#define TARGET_LITTLE_ENDIAN (target_flags & MASK_LITTLE_ENDIAN) 66#define TARGET_REGNAMES (target_flags & MASK_REGNAMES) 67#define TARGET_PROTOTYPE (target_flags & MASK_PROTOTYPE) 68#define TARGET_NO_BITFIELD_WORD (target_flags & MASK_NO_BITFIELD_WORD) 69#define TARGET_TOC ((target_flags & MASK_64BIT) \ 70 || ((target_flags & (MASK_RELOCATABLE \ 71 | MASK_MINIMAL_TOC)) \ 72 && flag_pic > 1) \ 73 || DEFAULT_ABI == ABI_AIX) 74 75#define TARGET_BITFIELD_TYPE (! TARGET_NO_BITFIELD_TYPE) 76#define TARGET_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN) 77#define TARGET_NO_PROTOTYPE (! TARGET_PROTOTYPE) 78#define TARGET_NO_TOC (! TARGET_TOC) 79#define TARGET_NO_EABI (! TARGET_EABI) 80 81/* Strings provided by SUBTARGET_OPTIONS */ 82extern const char *rs6000_abi_name; 83extern const char *rs6000_sdata_name; 84 85/* Override rs6000.h definition. */ 86#undef SUBTARGET_OPTIONS 87#define SUBTARGET_OPTIONS \ 88 { "call-", &rs6000_abi_name, N_("Select ABI calling convention") }, \ 89 { "sdata=", &rs6000_sdata_name, N_("Select method for sdata handling") } 90 91/* Max # of bytes for variables to automatically be put into the .sdata 92 or .sdata2 sections. */ 93extern int g_switch_value; /* Value of the -G xx switch. */ 94extern int g_switch_set; /* Whether -G xx was passed. */ 95 96#define SDATA_DEFAULT_SIZE 8 97 98/* Note, V.4 no longer uses a normal TOC, so make -mfull-toc, be just 99 the same as -mminimal-toc. */ 100/* Override rs6000.h definition. */ 101#undef SUBTARGET_SWITCHES 102#define SUBTARGET_SWITCHES \ 103 { "bit-align", -MASK_NO_BITFIELD_TYPE, \ 104 N_("Align to the base type of the bit-field") }, \ 105 { "no-bit-align", MASK_NO_BITFIELD_TYPE, \ 106 N_("Don't align to the base type of the bit-field") }, \ 107 { "strict-align", MASK_STRICT_ALIGN, \ 108 N_("Don't assume that unaligned accesses are handled by the system") }, \ 109 { "no-strict-align", -MASK_STRICT_ALIGN, \ 110 N_("Assume that unaligned accesses are handled by the system") }, \ 111 { "relocatable", MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC, \ 112 N_("Produce code relocatable at runtime") }, \ 113 { "no-relocatable", -MASK_RELOCATABLE, \ 114 N_("Don't produce code relocatable at runtime") }, \ 115 { "relocatable-lib", MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC, \ 116 N_("Produce code relocatable at runtime") }, \ 117 { "no-relocatable-lib", -MASK_RELOCATABLE, \ 118 N_("Don't produce code relocatable at runtime") }, \ 119 { "little-endian", MASK_LITTLE_ENDIAN, \ 120 N_("Produce little endian code") }, \ 121 { "little", MASK_LITTLE_ENDIAN, \ 122 N_("Produce little endian code") }, \ 123 { "big-endian", -MASK_LITTLE_ENDIAN, \ 124 N_("Produce big endian code") }, \ 125 { "big", -MASK_LITTLE_ENDIAN, \ 126 N_("Produce big endian code") }, \ 127 { "no-toc", 0, N_("no description yet") }, \ 128 { "toc", MASK_MINIMAL_TOC, N_("no description yet") }, \ 129 { "full-toc", MASK_MINIMAL_TOC, N_("no description yet") }, \ 130 { "prototype", MASK_PROTOTYPE, N_("no description yet") }, \ 131 { "no-prototype", -MASK_PROTOTYPE, N_("no description yet") }, \ 132 { "no-traceback", 0, N_("no description yet") }, \ 133 { "eabi", MASK_EABI, N_("Use EABI") }, \ 134 { "no-eabi", -MASK_EABI, N_("Don't use EABI") }, \ 135 { "bit-word", -MASK_NO_BITFIELD_WORD, "" }, \ 136 { "no-bit-word", MASK_NO_BITFIELD_WORD, \ 137 N_("Do not allow bit-fields to cross word boundaries") }, \ 138 { "regnames", MASK_REGNAMES, \ 139 N_("Use alternate register names") }, \ 140 { "no-regnames", -MASK_REGNAMES, \ 141 N_("Don't use alternate register names") }, \ 142 { "sdata", 0, N_("no description yet") }, \ 143 { "no-sdata", 0, N_("no description yet") }, \ 144 { "sim", 0, \ 145 N_("Link with libsim.a, libc.a and sim-crt0.o") }, \ 146 { "ads", 0, \ 147 N_("Link with libads.a, libc.a and crt0.o") }, \ 148 { "yellowknife", 0, \ 149 N_("Link with libyk.a, libc.a and crt0.o") }, \ 150 { "mvme", 0, \ 151 N_("Link with libmvme.a, libc.a and crt0.o") }, \ 152 { "emb", 0, \ 153 N_("Set the PPC_EMB bit in the ELF flags header") }, \ 154 { "vxworks", 0, N_("no description yet") }, \ 155 { "shlib", 0, N_("no description yet") }, \ 156 EXTRA_SUBTARGET_SWITCHES \ 157 { "newlib", 0, N_("no description yet") }, 158 159/* This is meant to be redefined in the host dependent files. */ 160#define EXTRA_SUBTARGET_SWITCHES 161 162/* Sometimes certain combinations of command options do not make sense 163 on a particular target machine. You can define a macro 164 `OVERRIDE_OPTIONS' to take account of this. This macro, if 165 defined, is executed once just after all the command options have 166 been parsed. 167 168 The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to 169 get control. */ 170 171#define SUBTARGET_OVERRIDE_OPTIONS \ 172do { \ 173 if (!g_switch_set) \ 174 g_switch_value = SDATA_DEFAULT_SIZE; \ 175 \ 176 if (!strcmp (rs6000_abi_name, "sysv")) \ 177 rs6000_current_abi = ABI_V4; \ 178 else if (!strcmp (rs6000_abi_name, "sysv-noeabi")) \ 179 { \ 180 rs6000_current_abi = ABI_V4; \ 181 target_flags &= ~ MASK_EABI; \ 182 } \ 183 else if (!strcmp (rs6000_abi_name, "sysv-eabi") \ 184 || !strcmp (rs6000_abi_name, "eabi")) \ 185 { \ 186 rs6000_current_abi = ABI_V4; \ 187 target_flags |= MASK_EABI; \ 188 } \ 189 else if (!strcmp (rs6000_abi_name, "aix")) \ 190 { \ 191 rs6000_current_abi = ABI_AIX_NODESC; \ 192 target_flags |= MASK_EABI; \ 193 } \ 194 else if (!strcmp (rs6000_abi_name, "aixdesc")) \ 195 rs6000_current_abi = ABI_AIX; \ 196 else if (!strcmp (rs6000_abi_name, "freebsd")) \ 197 rs6000_current_abi = ABI_V4; \ 198 else if (!strcmp (rs6000_abi_name, "linux")) \ 199 rs6000_current_abi = ABI_V4; \ 200 else if (!strcmp (rs6000_abi_name, "gnu")) \ 201 rs6000_current_abi = ABI_V4; \ 202 else if (!strcmp (rs6000_abi_name, "netbsd")) \ 203 rs6000_current_abi = ABI_V4; \ 204 else if (!strcmp (rs6000_abi_name, "i960-old")) \ 205 { \ 206 rs6000_current_abi = ABI_V4; \ 207 target_flags |= (MASK_LITTLE_ENDIAN | MASK_EABI \ 208 | MASK_NO_BITFIELD_WORD); \ 209 target_flags &= ~MASK_STRICT_ALIGN; \ 210 } \ 211 else \ 212 { \ 213 rs6000_current_abi = ABI_V4; \ 214 error ("bad value for -mcall-%s", rs6000_abi_name); \ 215 } \ 216 \ 217 if (rs6000_sdata_name) \ 218 { \ 219 if (!strcmp (rs6000_sdata_name, "none")) \ 220 rs6000_sdata = SDATA_NONE; \ 221 else if (!strcmp (rs6000_sdata_name, "data")) \ 222 rs6000_sdata = SDATA_DATA; \ 223 else if (!strcmp (rs6000_sdata_name, "default")) \ 224 rs6000_sdata = (TARGET_EABI) ? SDATA_EABI : SDATA_SYSV; \ 225 else if (!strcmp (rs6000_sdata_name, "sysv")) \ 226 rs6000_sdata = SDATA_SYSV; \ 227 else if (!strcmp (rs6000_sdata_name, "eabi")) \ 228 rs6000_sdata = SDATA_EABI; \ 229 else \ 230 error ("bad value for -msdata=%s", rs6000_sdata_name); \ 231 } \ 232 else if (DEFAULT_ABI == ABI_V4) \ 233 { \ 234 rs6000_sdata = SDATA_DATA; \ 235 rs6000_sdata_name = "data"; \ 236 } \ 237 else \ 238 { \ 239 rs6000_sdata = SDATA_NONE; \ 240 rs6000_sdata_name = "none"; \ 241 } \ 242 \ 243 if (TARGET_RELOCATABLE && \ 244 (rs6000_sdata == SDATA_EABI || rs6000_sdata == SDATA_SYSV)) \ 245 { \ 246 rs6000_sdata = SDATA_DATA; \ 247 error ("-mrelocatable and -msdata=%s are incompatible", \ 248 rs6000_sdata_name); \ 249 } \ 250 \ 251 else if (flag_pic && \ 252 (rs6000_sdata == SDATA_EABI || rs6000_sdata == SDATA_SYSV)) \ 253 { \ 254 rs6000_sdata = SDATA_DATA; \ 255 error ("-f%s and -msdata=%s are incompatible", \ 256 (flag_pic > 1) ? "PIC" : "pic", \ 257 rs6000_sdata_name); \ 258 } \ 259 \ 260 if (rs6000_sdata != SDATA_NONE && DEFAULT_ABI != ABI_V4) \ 261 { \ 262 rs6000_sdata = SDATA_NONE; \ 263 error ("-msdata=%s and -mcall-%s are incompatible", \ 264 rs6000_sdata_name, rs6000_abi_name); \ 265 } \ 266 \ 267 if (TARGET_RELOCATABLE && !TARGET_MINIMAL_TOC) \ 268 { \ 269 target_flags |= MASK_MINIMAL_TOC; \ 270 error ("-mrelocatable and -mno-minimal-toc are incompatible"); \ 271 } \ 272 \ 273 if (TARGET_RELOCATABLE && rs6000_current_abi == ABI_AIX) \ 274 { \ 275 target_flags &= ~MASK_RELOCATABLE; \ 276 error ("-mrelocatable and -mcall-%s are incompatible", \ 277 rs6000_abi_name); \ 278 } \ 279 \ 280 if (flag_pic > 1 && rs6000_current_abi == ABI_AIX) \ 281 { \ 282 flag_pic = 0; \ 283 error ("-fPIC and -mcall-%s are incompatible", \ 284 rs6000_abi_name); \ 285 } \ 286 \ 287 if (rs6000_current_abi == ABI_AIX && TARGET_LITTLE_ENDIAN) \ 288 { \ 289 target_flags &= ~MASK_LITTLE_ENDIAN; \ 290 error ("-mcall-aixdesc must be big endian"); \ 291 } \ 292 \ 293 /* Treat -fPIC the same as -mrelocatable. */ \ 294 if (flag_pic > 1) \ 295 target_flags |= MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC; \ 296 \ 297 else if (TARGET_RELOCATABLE) \ 298 flag_pic = 2; \ 299 \ 300} while (0) 301 302 303/* Override rs6000.h definition. */ 304#undef TARGET_DEFAULT 305#define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS) 306 307/* Override rs6000.h definition. */ 308#undef PROCESSOR_DEFAULT 309#define PROCESSOR_DEFAULT PROCESSOR_PPC750 310 311#define FIXED_R2 1 312/* System V.4 uses register 13 as a pointer to the small data area, 313 so it is not available to the normal user. */ 314#define FIXED_R13 1 315 316/* Size of the V.4 varargs area if needed. */ 317/* Override rs6000.h definition. */ 318#undef RS6000_VARARGS_AREA 319#define RS6000_VARARGS_AREA ((cfun->machine->sysv_varargs_p) ? RS6000_VARARGS_SIZE : 0) 320 321/* Override default big endianism definitions in rs6000.h. */ 322#undef BYTES_BIG_ENDIAN 323#undef WORDS_BIG_ENDIAN 324#define BYTES_BIG_ENDIAN (TARGET_BIG_ENDIAN) 325#define WORDS_BIG_ENDIAN (TARGET_BIG_ENDIAN) 326 327/* Define this to set the endianness to use in libgcc2.c, which can 328 not depend on target_flags. */ 329#if !defined(_LITTLE_ENDIAN) && !defined(__sun__) 330#define LIBGCC2_WORDS_BIG_ENDIAN 1 331#else 332#define LIBGCC2_WORDS_BIG_ENDIAN 0 333#endif 334 335/* Define cutoff for using external functions to save floating point. 336 Currently on V.4, always use inline stores. */ 337#define FP_SAVE_INLINE(FIRST_REG) ((FIRST_REG) < 64) 338 339/* Put jump tables in read-only memory, rather than in .text. */ 340#define JUMP_TABLES_IN_TEXT_SECTION 0 341 342/* Prefix and suffix to use to saving floating point. */ 343#define SAVE_FP_PREFIX "_savefpr_" 344#define SAVE_FP_SUFFIX "_l" 345 346/* Prefix and suffix to use to restoring floating point. */ 347#define RESTORE_FP_PREFIX "_restfpr_" 348#define RESTORE_FP_SUFFIX "_l" 349 350/* Type used for ptrdiff_t, as a string used in a declaration. */ 351#define PTRDIFF_TYPE "int" 352 353/* Type used for wchar_t, as a string used in a declaration. */ 354/* Override svr4.h definition. */ 355#undef WCHAR_TYPE 356#define WCHAR_TYPE "long int" 357 358/* Width of wchar_t in bits. */ 359/* Override svr4.h definition. */ 360#undef WCHAR_TYPE_SIZE 361#define WCHAR_TYPE_SIZE 32 362 363/* Make int foo : 8 not cause structures to be aligned to an int boundary. */ 364/* Override elfos.h definition. */ 365#undef PCC_BITFIELD_TYPE_MATTERS 366#define PCC_BITFIELD_TYPE_MATTERS (TARGET_BITFIELD_TYPE) 367 368#undef BITFIELD_NBYTES_LIMITED 369#define BITFIELD_NBYTES_LIMITED (TARGET_NO_BITFIELD_WORD) 370 371/* Define this macro to be the value 1 if instructions will fail to 372 work if given data not on the nominal alignment. If instructions 373 will merely go slower in that case, define this macro as 0. */ 374#undef STRICT_ALIGNMENT 375#define STRICT_ALIGNMENT (TARGET_STRICT_ALIGN) 376 377/* Alignment in bits of the stack boundary. Note, in order to allow building 378 one set of libraries with -mno-eabi instead of eabi libraries and non-eabi 379 versions, just use 64 as the stack boundary. */ 380#undef STACK_BOUNDARY 381#define STACK_BOUNDARY (TARGET_ALTIVEC_ABI ? 128 : 64) 382 383/* Real stack boundary as mandated by the appropriate ABI. */ 384#define ABI_STACK_BOUNDARY ((TARGET_EABI && !TARGET_ALTIVEC_ABI) ? 64 : 128) 385 386/* No data type wants to be aligned rounder than this. */ 387#undef BIGGEST_ALIGNMENT 388#define BIGGEST_ALIGNMENT ((TARGET_EABI && !TARGET_ALTIVEC) ? 64 : 128) 389 390/* An expression for the alignment of a structure field FIELD if the 391 alignment computed in the usual way is COMPUTED. */ 392#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \ 393 ((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE) \ 394 ? 128 : COMPUTED) 395 396/* Define this macro as an expression for the alignment of a type 397 (given by TYPE as a tree node) if the alignment computed in the 398 usual way is COMPUTED and the alignment explicitly specified was 399 SPECIFIED. */ 400#define ROUND_TYPE_ALIGN(TYPE, COMPUTED, SPECIFIED) \ 401 ((TARGET_ALTIVEC && TREE_CODE (TYPE) == VECTOR_TYPE) \ 402 ? MAX (MAX ((COMPUTED), (SPECIFIED)), 128) \ 403 : MAX (COMPUTED, SPECIFIED)) 404 405#undef BIGGEST_FIELD_ALIGNMENT 406 407/* Use ELF style section commands. */ 408 409#define TEXT_SECTION_ASM_OP "\t.section\t\".text\"" 410 411#define DATA_SECTION_ASM_OP "\t.section\t\".data\"" 412 413#define BSS_SECTION_ASM_OP "\t.section\t\".bss\"" 414 415/* Override elfos.h definition. */ 416#undef INIT_SECTION_ASM_OP 417#define INIT_SECTION_ASM_OP "\t.section\t\".init\",\"ax\"" 418 419/* Override elfos.h definition. */ 420#undef FINI_SECTION_ASM_OP 421#define FINI_SECTION_ASM_OP "\t.section\t\".fini\",\"ax\"" 422 423#define TOC_SECTION_ASM_OP "\t.section\t\".got\",\"aw\"" 424 425/* Put PC relative got entries in .got2. */ 426#define MINIMAL_TOC_SECTION_ASM_OP \ 427 ((TARGET_RELOCATABLE || flag_pic) ? "\t.section\t\".got2\",\"aw\"" : "\t.section\t\".got1\",\"aw\"") 428 429#define SDATA_SECTION_ASM_OP "\t.section\t\".sdata\",\"aw\"" 430#define SDATA2_SECTION_ASM_OP "\t.section\t\".sdata2\",\"a\"" 431#define SBSS_SECTION_ASM_OP "\t.section\t\".sbss\",\"aw\",@nobits" 432 433/* Besides the usual ELF sections, we need a toc section. */ 434/* Override elfos.h definition. */ 435#undef EXTRA_SECTIONS 436#define EXTRA_SECTIONS in_const, in_toc, in_sdata, in_sdata2, in_sbss, in_init, in_fini 437 438/* Override elfos.h definition. */ 439#undef EXTRA_SECTION_FUNCTIONS 440#define EXTRA_SECTION_FUNCTIONS \ 441 CONST_SECTION_FUNCTION \ 442 TOC_SECTION_FUNCTION \ 443 SDATA_SECTION_FUNCTION \ 444 SDATA2_SECTION_FUNCTION \ 445 SBSS_SECTION_FUNCTION \ 446 INIT_SECTION_FUNCTION \ 447 FINI_SECTION_FUNCTION 448 449#define TOC_SECTION_FUNCTION \ 450void \ 451toc_section () \ 452{ \ 453 if (in_section != in_toc) \ 454 { \ 455 in_section = in_toc; \ 456 if (DEFAULT_ABI == ABI_AIX \ 457 && TARGET_MINIMAL_TOC \ 458 && !TARGET_RELOCATABLE) \ 459 { \ 460 if (! toc_initialized) \ 461 { \ 462 toc_initialized = 1; \ 463 fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP); \ 464 ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "LCTOC", 0); \ 465 fprintf (asm_out_file, "\t.tc "); \ 466 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1[TC],"); \ 467 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \ 468 fprintf (asm_out_file, "\n"); \ 469 \ 470 fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \ 471 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \ 472 fprintf (asm_out_file, " = .+32768\n"); \ 473 } \ 474 else \ 475 fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \ 476 } \ 477 else if (DEFAULT_ABI == ABI_AIX && !TARGET_RELOCATABLE) \ 478 fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP); \ 479 else \ 480 { \ 481 fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \ 482 if (! toc_initialized) \ 483 { \ 484 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \ 485 fprintf (asm_out_file, " = .+32768\n"); \ 486 toc_initialized = 1; \ 487 } \ 488 } \ 489 } \ 490} \ 491 \ 492extern int in_toc_section PARAMS ((void)); \ 493int in_toc_section () \ 494{ \ 495 return in_section == in_toc; \ 496} 497 498#define SDATA_SECTION_FUNCTION \ 499void \ 500sdata_section () \ 501{ \ 502 if (in_section != in_sdata) \ 503 { \ 504 in_section = in_sdata; \ 505 fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP); \ 506 } \ 507} 508 509#define SDATA2_SECTION_FUNCTION \ 510void \ 511sdata2_section () \ 512{ \ 513 if (in_section != in_sdata2) \ 514 { \ 515 in_section = in_sdata2; \ 516 fprintf (asm_out_file, "%s\n", SDATA2_SECTION_ASM_OP); \ 517 } \ 518} 519 520#define SBSS_SECTION_FUNCTION \ 521void \ 522sbss_section () \ 523{ \ 524 if (in_section != in_sbss) \ 525 { \ 526 in_section = in_sbss; \ 527 fprintf (asm_out_file, "%s\n", SBSS_SECTION_ASM_OP); \ 528 } \ 529} 530 531#define INIT_SECTION_FUNCTION \ 532void \ 533init_section () \ 534{ \ 535 if (in_section != in_init) \ 536 { \ 537 in_section = in_init; \ 538 fprintf (asm_out_file, "%s\n", INIT_SECTION_ASM_OP); \ 539 } \ 540} 541 542#define FINI_SECTION_FUNCTION \ 543void \ 544fini_section () \ 545{ \ 546 if (in_section != in_fini) \ 547 { \ 548 in_section = in_fini; \ 549 fprintf (asm_out_file, "%s\n", FINI_SECTION_ASM_OP); \ 550 } \ 551} 552 553/* A C statement or statements to switch to the appropriate section 554 for output of RTX in mode MODE. You can assume that RTX is some 555 kind of constant in RTL. The argument MODE is redundant except in 556 the case of a `const_int' rtx. Select the section by calling 557 `text_section' or one of the alternatives for other sections. 558 559 Do not define this macro if you put all constants in the read-only 560 data section. */ 561 562/* Override elfos.h definition. */ 563#undef SELECT_RTX_SECTION 564#define SELECT_RTX_SECTION(MODE, X, ALIGN) rs6000_select_rtx_section (MODE, X) 565 566/* A C statement or statements to switch to the appropriate 567 section for output of DECL. DECL is either a `VAR_DECL' node 568 or a constant of some sort. RELOC indicates whether forming 569 the initial value of DECL requires link-time relocations. */ 570 571/* Override elfos.h definition. */ 572#undef SELECT_SECTION 573#define SELECT_SECTION(DECL, RELOC, ALIGN) rs6000_select_section (DECL, RELOC) 574 575/* A C statement to build up a unique section name, expressed as a 576 STRING_CST node, and assign it to DECL_SECTION_NAME (decl). 577 RELOC indicates whether the initial value of EXP requires 578 link-time relocations. If you do not define this macro, GCC will use 579 the symbol name prefixed by `.' as the section name. Note - this 580 macro can now be called for uninitialized data items as well as 581 initialised data and functions. */ 582 583/* Override elfos.h definition. */ 584#undef UNIQUE_SECTION 585#define UNIQUE_SECTION(DECL, RELOC) rs6000_unique_section (DECL, RELOC) 586 587/* Return non-zero if this entry is to be written into the constant pool 588 in a special way. We do so if this is a SYMBOL_REF, LABEL_REF or a CONST 589 containing one of them. If -mfp-in-toc (the default), we also do 590 this for floating-point constants. We actually can only do this 591 if the FP formats of the target and host machines are the same, but 592 we can't check that since not every file that uses 593 GO_IF_LEGITIMATE_ADDRESS_P includes real.h. 594 595 Unlike AIX, we don't key off of -mminimal-toc, but instead do not 596 allow floating point constants in the TOC if -mrelocatable. */ 597 598#undef ASM_OUTPUT_SPECIAL_POOL_ENTRY_P 599#define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE) \ 600 (TARGET_TOC \ 601 && (GET_CODE (X) == SYMBOL_REF \ 602 || (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS \ 603 && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF) \ 604 || GET_CODE (X) == LABEL_REF \ 605 || (GET_CODE (X) == CONST_INT \ 606 && GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode)) \ 607 || (!TARGET_NO_FP_IN_TOC \ 608 && !TARGET_RELOCATABLE \ 609 && GET_CODE (X) == CONST_DOUBLE \ 610 && GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT \ 611 && BITS_PER_WORD == HOST_BITS_PER_INT))) 612 613/* These macros generate the special .type and .size directives which 614 are used to set the corresponding fields of the linker symbol table 615 entries in an ELF object file under SVR4. These macros also output 616 the starting labels for the relevant functions/objects. */ 617 618/* Write the extra assembler code needed to declare a function properly. 619 Some svr4 assemblers need to also have something extra said about the 620 function's return value. We allow for that here. */ 621 622extern int rs6000_pic_labelno; 623 624/* Override elfos.h definition. */ 625#undef ASM_DECLARE_FUNCTION_NAME 626#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ 627 do { \ 628 const char *const init_ptr = (TARGET_64BIT) ? ".quad" : ".long"; \ 629 \ 630 if (TARGET_RELOCATABLE \ 631 && (get_pool_size () != 0 || current_function_profile) \ 632 && uses_TOC()) \ 633 { \ 634 char buf[256]; \ 635 \ 636 ASM_OUTPUT_INTERNAL_LABEL (FILE, "LCL", rs6000_pic_labelno); \ 637 \ 638 ASM_GENERATE_INTERNAL_LABEL (buf, "LCTOC", 1); \ 639 fprintf (FILE, "\t%s ", init_ptr); \ 640 assemble_name (FILE, buf); \ 641 putc ('-', FILE); \ 642 ASM_GENERATE_INTERNAL_LABEL (buf, "LCF", rs6000_pic_labelno); \ 643 assemble_name (FILE, buf); \ 644 putc ('\n', FILE); \ 645 } \ 646 \ 647 fprintf (FILE, "%s", TYPE_ASM_OP); \ 648 assemble_name (FILE, NAME); \ 649 putc (',', FILE); \ 650 fprintf (FILE, TYPE_OPERAND_FMT, "function"); \ 651 putc ('\n', FILE); \ 652 ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \ 653 \ 654 if (DEFAULT_ABI == ABI_AIX) \ 655 { \ 656 const char *desc_name, *orig_name; \ 657 \ 658 STRIP_NAME_ENCODING (orig_name, NAME); \ 659 desc_name = orig_name; \ 660 while (*desc_name == '.') \ 661 desc_name++; \ 662 \ 663 if (TREE_PUBLIC (DECL)) \ 664 fprintf (FILE, "\t.globl %s\n", desc_name); \ 665 \ 666 fprintf (FILE, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \ 667 fprintf (FILE, "%s:\n", desc_name); \ 668 fprintf (FILE, "\t%s %s\n", init_ptr, orig_name); \ 669 fprintf (FILE, "\t%s _GLOBAL_OFFSET_TABLE_\n", init_ptr); \ 670 if (DEFAULT_ABI == ABI_AIX) \ 671 fprintf (FILE, "\t%s 0\n", init_ptr); \ 672 fprintf (FILE, "\t.previous\n"); \ 673 } \ 674 ASM_OUTPUT_LABEL (FILE, NAME); \ 675 } while (0) 676 677/* A C compound statement that outputs the assembler code for a thunk function, 678 used to implement C++ virtual function calls with multiple inheritance. The 679 thunk acts as a wrapper around a virtual function, adjusting the implicit 680 object parameter before handing control off to the real function. 681 682 First, emit code to add the integer DELTA to the location that contains the 683 incoming first argument. Assume that this argument contains a pointer, and 684 is the one used to pass the this' pointer in C++. This is the incoming 685 argument *before* the function prologue, e.g. %o0' on a sparc. The 686 addition must preserve the values of all other incoming arguments. 687 688 After the addition, emit code to jump to FUNCTION, which is a 689 FUNCTION_DECL'. This is a direct pure jump, not a call, and does not touch 690 the return address. Hence returning from FUNCTION will return to whoever 691 called the current thunk'. 692 693 The effect must be as if FUNCTION had been called directly with the adjusted 694 first argument. This macro is responsible for emitting all of the code for 695 a thunk function; FUNCTION_PROLOGUE' and FUNCTION_EPILOGUE' are not 696 invoked. 697 698 The THUNK_FNDECL is redundant. (DELTA and FUNCTION have already been 699 extracted from it.) It might possibly be useful on some targets, but 700 probably not. 701 702 If you do not define this macro, the target-independent code in the C++ 703 frontend will generate a less efficient heavyweight thunk that calls 704 FUNCTION instead of jumping to it. The generic approach does not support 705 varargs. */ 706 707#define ASM_OUTPUT_MI_THUNK(FILE, THUNK_FNDECL, DELTA, FUNCTION) \ 708 output_mi_thunk (FILE, THUNK_FNDECL, DELTA, FUNCTION) 709 710/* The USER_LABEL_PREFIX stuff is affected by the -fleading-underscore 711 flag. The LOCAL_LABEL_PREFIX variable is used by dbxelf.h. */ 712 713#define LOCAL_LABEL_PREFIX "." 714#define USER_LABEL_PREFIX "" 715 716/* svr4.h overrides ASM_OUTPUT_INTERNAL_LABEL. */ 717 718#define ASM_OUTPUT_INTERNAL_LABEL_PREFIX(FILE,PREFIX) \ 719 asm_fprintf (FILE, "%L%s", PREFIX) 720 721#define ASM_OUTPUT_LABEL(FILE,NAME) \ 722 (assemble_name (FILE, NAME), fputs (":\n", FILE)) 723 724/* This is how to output a command to make the user-level label named NAME 725 defined for reference from other files. */ 726 727#define ASM_GLOBALIZE_LABEL(FILE,NAME) \ 728 do { fputs ("\t.globl ", FILE); \ 729 assemble_name (FILE, NAME); putc ('\n', FILE);} while (0) 730 731/* This says how to output assembler code to declare an 732 uninitialized internal linkage data object. Under SVR4, 733 the linker seems to want the alignment of data objects 734 to depend on their types. We do exactly that here. */ 735 736#define LOCAL_ASM_OP "\t.local\t" 737 738#define LCOMM_ASM_OP "\t.lcomm\t" 739 740/* Override elfos.h definition. */ 741#undef ASM_OUTPUT_ALIGNED_LOCAL 742#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \ 743do { \ 744 if (rs6000_sdata != SDATA_NONE && (SIZE) > 0 \ 745 && (SIZE) <= g_switch_value) \ 746 { \ 747 sbss_section (); \ 748 ASM_OUTPUT_ALIGN (FILE, exact_log2 (ALIGN / BITS_PER_UNIT)); \ 749 ASM_OUTPUT_LABEL (FILE, NAME); \ 750 ASM_OUTPUT_SKIP (FILE, SIZE); \ 751 if (!flag_inhibit_size_directive && (SIZE) > 0) \ 752 { \ 753 fprintf (FILE, "%s", SIZE_ASM_OP); \ 754 assemble_name (FILE, NAME); \ 755 fprintf (FILE, ",%d\n", SIZE); \ 756 } \ 757 } \ 758 else \ 759 { \ 760 fprintf (FILE, "%s", LCOMM_ASM_OP); \ 761 assemble_name ((FILE), (NAME)); \ 762 fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \ 763 } \ 764} while (0) 765 766/* Describe how to emit uninitialized external linkage items. */ 767#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ 768do { \ 769 ASM_GLOBALIZE_LABEL (FILE, NAME); \ 770 ASM_OUTPUT_ALIGNED_LOCAL (FILE, NAME, SIZE, ALIGN); \ 771} while (0) 772 773/* This is how to output code to push a register on the stack. 774 It need not be very fast code. 775 776 On the rs6000, we must keep the backchain up to date. In order 777 to simplify things, always allocate 16 bytes for a push (System V 778 wants to keep stack aligned to a 16 byte boundary). */ 779 780#define ASM_OUTPUT_REG_PUSH(FILE, REGNO) \ 781do { \ 782 if (DEFAULT_ABI == ABI_V4) \ 783 asm_fprintf (FILE, \ 784 (TARGET_32BIT \ 785 ? "\t{stu|stwu} %s,-16(%s)\n\t{st|stw} %s,12(%s)\n" \ 786 : "\tstdu %s,-32(%s)\n\tstd %s,24(%s)\n"), \ 787 reg_names[1], reg_names[1], reg_names[REGNO], \ 788 reg_names[1]); \ 789} while (0) 790 791/* This is how to output an insn to pop a register from the stack. 792 It need not be very fast code. */ 793 794#define ASM_OUTPUT_REG_POP(FILE, REGNO) \ 795do { \ 796 if (DEFAULT_ABI == ABI_V4) \ 797 asm_fprintf (FILE, \ 798 (TARGET_32BIT \ 799 ? "\t{l|lwz} %s,12(%s)\n\t{ai|addic} %s,%s,16\n" \ 800 : "\tld %s,24(%s)\n\t{ai|addic} %s,%s,32\n"), \ 801 reg_names[REGNO], reg_names[1], reg_names[1], \ 802 reg_names[1]); \ 803} while (0) 804 805/* Switch Recognition by gcc.c. Add -G xx support. */ 806 807/* Override svr4.h definition. */ 808#undef SWITCH_TAKES_ARG 809#define SWITCH_TAKES_ARG(CHAR) \ 810 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \ 811 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \ 812 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \ 813 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \ 814 || (CHAR) == 'B' || (CHAR) == 'b' || (CHAR) == 'G') 815 816/* Output .file. */ 817/* Override elfos.h definition. */ 818#undef ASM_FILE_START 819#define ASM_FILE_START(FILE) \ 820do { \ 821 output_file_directive ((FILE), main_input_filename); \ 822 rs6000_file_start (FILE, TARGET_CPU_DEFAULT); \ 823} while (0) 824 825 826extern int fixuplabelno; 827 828/* Handle constructors specially for -mrelocatable. */ 829#define TARGET_ASM_CONSTRUCTOR rs6000_elf_asm_out_constructor 830#define TARGET_ASM_DESTRUCTOR rs6000_elf_asm_out_destructor 831 832/* This is the end of what might become sysv4.h. */ 833 834/* Use DWARF 2 debugging information by default. */ 835#undef PREFERRED_DEBUGGING_TYPE 836#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG 837 838/* Historically we have also supported stabs debugging. */ 839#define DBX_DEBUGGING_INFO 840 841/* If we are referencing a function that is static or is known to be 842 in this file, make the SYMBOL_REF special. We can use this to indicate 843 that we can branch to this function without emitting a no-op after the 844 call. For real AIX calling sequences, we also replace the 845 function name with the real name (1 or 2 leading .'s), rather than 846 the function descriptor name. This saves a lot of overriding code 847 to read the prefixes. */ 848 849#undef ENCODE_SECTION_INFO 850#define ENCODE_SECTION_INFO(DECL) rs6000_encode_section_info (DECL) 851 852/* The ELF version doesn't encode [DS] or whatever at the end of symbols. */ 853 854#define RS6000_OUTPUT_BASENAME(FILE, NAME) \ 855 assemble_name (FILE, NAME) 856 857/* This macro gets just the user-specified name 858 out of the string in a SYMBOL_REF. Discard 859 a leading * or @. */ 860#define STRIP_NAME_ENCODING(VAR,SYMBOL_NAME) \ 861do { \ 862 const char *_name = SYMBOL_NAME; \ 863 while (*_name == '*' || *_name == '@') \ 864 _name++; \ 865 (VAR) = _name; \ 866} while (0) 867 868/* This is how to output a reference to a user-level label named NAME. 869 `assemble_name' uses this. */ 870 871/* Override elfos.h definition. */ 872#undef ASM_OUTPUT_LABELREF 873#define ASM_OUTPUT_LABELREF(FILE,NAME) \ 874do { \ 875 const char *_name = NAME; \ 876 if (*_name == '@') \ 877 _name++; \ 878 \ 879 if (*_name == '*') \ 880 fprintf (FILE, "%s", _name + 1); \ 881 else \ 882 asm_fprintf (FILE, "%U%s", _name); \ 883} while (0) 884 885/* But, to make this work, we have to output the stabs for the function 886 name *first*... */ 887 888#define DBX_FUNCTION_FIRST 889 890/* This is the end of what might become sysv4dbx.h. */ 891 892#ifndef TARGET_VERSION 893#define TARGET_VERSION fprintf (stderr, " (PowerPC System V.4)"); 894#endif 895 896#ifndef CPP_PREDEFINES 897#define CPP_PREDEFINES \ 898 "-DPPC -Dunix -D__svr4__ -Asystem=unix -Asystem=svr4 -Acpu=powerpc -Amachine=powerpc" 899#endif 900 901/* Pass various options to the assembler. */ 902/* Override svr4.h definition. */ 903#undef ASM_SPEC 904#define ASM_SPEC "%(asm_cpu) \ 905%{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \ 906%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \ 907%{mrelocatable} %{mrelocatable-lib} %{fpic:-K PIC} %{fPIC:-K PIC} \ 908%{memb} %{!memb: %{msdata: -memb} %{msdata=eabi: -memb}} \ 909%{mlittle} %{mlittle-endian} %{mbig} %{mbig-endian} \ 910%{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \ 911 %{mcall-freebsd: -mbig} \ 912 %{mcall-i960-old: -mlittle} \ 913 %{mcall-linux: -mbig} \ 914 %{mcall-gnu: -mbig} \ 915 %{mcall-netbsd: -mbig} \ 916}}}}" 917 918#define CC1_ENDIAN_BIG_SPEC "" 919 920#define CC1_ENDIAN_LITTLE_SPEC "\ 921%{!mstrict-align: %{!mno-strict-align: \ 922 %{!mcall-i960-old: \ 923 -mstrict-align \ 924 } \ 925}}" 926 927#define CC1_ENDIAN_DEFAULT_SPEC "%(cc1_endian_big)" 928 929/* Pass -G xxx to the compiler and set correct endian mode. */ 930#define CC1_SPEC "%{G*} \ 931%{mlittle: %(cc1_endian_little)} %{!mlittle: %{mlittle-endian: %(cc1_endian_little)}} \ 932%{mbig: %(cc1_endian_big)} %{!mbig: %{mbig-endian: %(cc1_endian_big)}} \ 933%{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \ 934 %{mcall-aixdesc: -mbig %(cc1_endian_big) } \ 935 %{mcall-freebsd: -mbig %(cc1_endian_big) } \ 936 %{mcall-i960-old: -mlittle %(cc1_endian_little) } \ 937 %{mcall-linux: -mbig %(cc1_endian_big) } \ 938 %{mcall-gnu: -mbig %(cc1_endian_big) } \ 939 %{mcall-netbsd: -mbig %(cc1_endian_big) } \ 940 %{!mcall-aixdesc: %{!mcall-freebsd: %{!mcall-i960-old: %{!mcall-linux: %{!mcall-gnu: %{!mcall-netbsd: \ 941 %(cc1_endian_default) \ 942 }}}}}} \ 943}}}} \ 944%{mno-sdata: -msdata=none } \ 945%{meabi: %{!mcall-*: -mcall-sysv }} \ 946%{!meabi: %{!mno-eabi: \ 947 %{mrelocatable: -meabi } \ 948 %{mcall-freebsd: -mno-eabi } \ 949 %{mcall-i960-old: -meabi } \ 950 %{mcall-linux: -mno-eabi } \ 951 %{mcall-gnu: -mno-eabi } \ 952 %{mcall-netbsd: -mno-eabi }}} \ 953%{msdata: -msdata=default} \ 954%{mno-sdata: -msdata=none} \ 955%{profile: -p}" 956 957/* Don't put -Y P,<path> for cross compilers. */ 958#ifndef CROSS_COMPILE 959#define LINK_PATH_SPEC "\ 960%{!R*:%{L*:-R %*}} \ 961%{!nostdlib: %{!YP,*: \ 962 %{compat-bsd: \ 963 %{p:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \ 964 %{!p:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}} \ 965 %{!R*: %{!L*: -R /usr/ucblib}} \ 966 %{!compat-bsd: \ 967 %{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \ 968 %{!p:-Y P,/usr/ccs/lib:/usr/lib}}}}" 969 970#else 971#define LINK_PATH_SPEC "" 972#endif 973 974/* Default starting address if specified. */ 975#define LINK_START_SPEC "\ 976%{mads: %(link_start_ads) } \ 977%{myellowknife: %(link_start_yellowknife) } \ 978%{mmvme: %(link_start_mvme) } \ 979%{msim: %(link_start_sim) } \ 980%{mcall-freebsd: %(link_start_freebsd) } \ 981%{mcall-linux: %(link_start_linux) } \ 982%{mcall-gnu: %(link_start_gnu) } \ 983%{mcall-netbsd: %(link_start_netbsd) } \ 984%{!mads: %{!myellowknife: %{!mmvme: %{!msim: %{!mcall-linux: %{!mcall-gnu: \ 985 %{!mcall-netbsd: %{!mcall-freebsd: %(link_start_default) }}}}}}}}" 986 987#define LINK_START_DEFAULT_SPEC "" 988 989/* Override svr4.h definition. */ 990#undef LINK_SPEC 991#define LINK_SPEC "\ 992%{h*} %{v:-V} %{!msdata=none:%{G*}} %{msdata=none:-G0} \ 993%{YP,*} %{R*} \ 994%{Qy:} %{!Qn:-Qy} \ 995%(link_shlib) \ 996%{!Wl,-T*: %{!T*: %(link_start) }} \ 997%(link_target) \ 998%(link_os)" 999 1000/* For now, turn off shared libraries by default. */ 1001#ifndef SHARED_LIB_SUPPORT 1002#define NO_SHARED_LIB_SUPPORT 1003#endif 1004 1005#ifndef NO_SHARED_LIB_SUPPORT 1006/* Shared libraries are default. */ 1007#define LINK_SHLIB_SPEC "\ 1008%{!static: %(link_path) %{!R*:%{L*:-R %*}}} \ 1009%{mshlib: } \ 1010%{static:-dn -Bstatic} \ 1011%{shared:-G -dy -z text} \ 1012%{symbolic:-Bsymbolic -G -dy -z text}" 1013 1014#else 1015/* Shared libraries are not default. */ 1016#define LINK_SHLIB_SPEC "\ 1017%{mshlib: %(link_path) } \ 1018%{!mshlib: %{!shared: %{!symbolic: -dn -Bstatic}}} \ 1019%{static: } \ 1020%{shared:-G -dy -z text %(link_path) } \ 1021%{symbolic:-Bsymbolic -G -dy -z text %(link_path) }" 1022#endif 1023 1024/* Override the default target of the linker. */ 1025#define LINK_TARGET_SPEC "\ 1026%{mlittle: --oformat elf32-powerpcle } %{mlittle-endian: --oformat elf32-powerpcle } \ 1027%{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \ 1028 %{mcall-i960-old: --oformat elf32-powerpcle} \ 1029 }}}}" 1030 1031/* Any specific OS flags. */ 1032#define LINK_OS_SPEC "\ 1033%{mads: %(link_os_ads) } \ 1034%{myellowknife: %(link_os_yellowknife) } \ 1035%{mmvme: %(link_os_mvme) } \ 1036%{msim: %(link_os_sim) } \ 1037%{mcall-freebsd: %(link_os_freebsd) } \ 1038%{mcall-linux: %(link_os_linux) } \ 1039%{mcall-gnu: %(link_os_gnu) } \ 1040%{mcall-netbsd: %(link_os_netbsd) } \ 1041%{!mads: %{!myellowknife: %{!mmvme: %{!msim: %{!mcall-freebsd: %{!mcall-linux: %{!mcall-gnu: %{!mcall-netbsd: %(link_os_default) }}}}}}}}" 1042 1043#define LINK_OS_DEFAULT_SPEC "" 1044 1045#define CPP_SYSV_SPEC \ 1046"%{mrelocatable*: -D_RELOCATABLE} \ 1047%{fpic: -D__PIC__=1 -D__pic__=1} \ 1048%{!fpic: %{fPIC: -D__PIC__=2 -D__pic__=2}} \ 1049%{mlong-double-128: -D__LONG_DOUBLE_128__=1} \ 1050%{!mlong-double-64: %(cpp_longdouble_default)} \ 1051%{mcall-sysv: -D_CALL_SYSV} \ 1052%{mcall-aix: -D_CALL_AIX} %{mcall-aixdesc: -D_CALL_AIX -D_CALL_AIXDESC} \ 1053%{!mcall-sysv: %{!mcall-aix: %{!mcall-aixdesc: %(cpp_sysv_default) }}} \ 1054%{msoft-float: -D_SOFT_FLOAT} \ 1055%{!msoft-float: %{!mhard-float: \ 1056 %{mcpu=401: -D_SOFT_FLOAT} \ 1057 %{mcpu=403: -D_SOFT_FLOAT} \ 1058 %{mcpu=405: -D_SOFT_FLOAT} \ 1059 %{mcpu=ec603e: -D_SOFT_FLOAT} \ 1060 %{mcpu=801: -D_SOFT_FLOAT} \ 1061 %{mcpu=821: -D_SOFT_FLOAT} \ 1062 %{mcpu=823: -D_SOFT_FLOAT} \ 1063 %{mcpu=860: -D_SOFT_FLOAT} \ 1064 %{!mcpu*: %(cpp_float_default) }}}" 1065 1066/* Whether floating point is disabled by default. */ 1067#define CPP_FLOAT_DEFAULT_SPEC "" 1068 1069/* Whether 'long double' is 128 bits by default. */ 1070#define CPP_LONGDOUBLE_DEFAULT_SPEC "" 1071 1072#define CPP_SYSV_DEFAULT_SPEC "-D_CALL_SYSV" 1073 1074#define CPP_ENDIAN_BIG_SPEC "-D_BIG_ENDIAN -D__BIG_ENDIAN__ -Amachine=bigendian" 1075 1076#define CPP_ENDIAN_LITTLE_SPEC "-D_LITTLE_ENDIAN -D__LITTLE_ENDIAN__ -Amachine=littleendian" 1077 1078#define CPP_ENDIAN_SPEC \ 1079"%{mlittle: %(cpp_endian_little) } \ 1080%{mlittle-endian: %(cpp_endian_little) } \ 1081%{mbig: %(cpp_endian_big) } \ 1082%{mbig-endian: %(cpp_endian_big) } \ 1083%{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \ 1084 %{mcall-freebsd: %(cpp_endian_big) } \ 1085 %{mcall-linux: %(cpp_endian_big) } \ 1086 %{mcall-gnu: %(cpp_endian_big) } \ 1087 %{mcall-netbsd: %(cpp_endian_big) } \ 1088 %{mcall-i960-old: %(cpp_endian_little) } \ 1089 %{mcall-aixdesc: %(cpp_endian_big) } \ 1090 %{!mcall-linux: %{!mcall-gnu: %{!mcall-freebsd: %{!mcall-netbsd: %{!mcall-aixdesc: %(cpp_endian_default) }}}}}}}}}" 1091 1092#define CPP_ENDIAN_DEFAULT_SPEC "%(cpp_endian_big)" 1093 1094/* Override rs6000.h definition. */ 1095#undef CPP_SPEC 1096#define CPP_SPEC "%{posix: -D_POSIX_SOURCE} %(cpp_sysv) %(cpp_endian) %(cpp_cpu) \ 1097%{mads: %(cpp_os_ads) } \ 1098%{myellowknife: %(cpp_os_yellowknife) } \ 1099%{mmvme: %(cpp_os_mvme) } \ 1100%{msim: %(cpp_os_sim) } \ 1101%{mcall-freebsd: %(cpp_os_freebsd) } \ 1102%{mcall-linux: %(cpp_os_linux) } \ 1103%{mcall-gnu: %(cpp_os_gnu) } \ 1104%{mcall-netbsd: %(cpp_os_netbsd) } \ 1105%{!mads: %{!myellowknife: %{!mmvme: %{!msim: %{!mcall-freebsd: %{!mcall-linux: %{!mcall-gnu: %{!mcall-netbsd: %(cpp_os_default) }}}}}}}}" 1106 1107#define CPP_OS_DEFAULT_SPEC "" 1108 1109/* Override svr4.h definition. */ 1110#undef STARTFILE_SPEC 1111#define STARTFILE_SPEC "\ 1112%{mads: %(startfile_ads) } \ 1113%{myellowknife: %(startfile_yellowknife) } \ 1114%{mmvme: %(startfile_mvme) } \ 1115%{msim: %(startfile_sim) } \ 1116%{mcall-freebsd: %(startfile_freebsd) } \ 1117%{mcall-linux: %(startfile_linux) } \ 1118%{mcall-gnu: %(startfile_gnu) } \ 1119%{mcall-netbsd: %(startfile_netbsd) } \ 1120%{!mads: %{!myellowknife: %{!mmvme: %{!msim: %{!mcall-freebsd: %{!mcall-linux: %{!mcall-gnu: %{!mcall-netbsd: %(startfile_default) }}}}}}}}" 1121 1122#define STARTFILE_DEFAULT_SPEC "" 1123 1124/* Override svr4.h definition. */ 1125#undef LIB_SPEC 1126#define LIB_SPEC "\ 1127%{mads: %(lib_ads) } \ 1128%{myellowknife: %(lib_yellowknife) } \ 1129%{mmvme: %(lib_mvme) } \ 1130%{msim: %(lib_sim) } \ 1131%{mcall-freebsd: %(lib_freebsd) } \ 1132%{mcall-linux: %(lib_linux) } \ 1133%{mcall-gnu: %(lib_gnu) } \ 1134%{mcall-netbsd: %(lib_netbsd) } \ 1135%{!mads: %{!myellowknife: %{!mmvme: %{!msim: %{!mcall-freebsd: %{!mcall-linux: %{!mcall-gnu: %{!mcall-netbsd: %(lib_default) }}}}}}}}" 1136 1137#define LIB_DEFAULT_SPEC "" 1138 1139/* Override svr4.h definition. */ 1140#undef ENDFILE_SPEC 1141#define ENDFILE_SPEC "crtsavres.o%s \ 1142%{mads: %(endfile_ads)} \ 1143%{myellowknife: %(endfile_yellowknife)} \ 1144%{mmvme: %(endfile_mvme)} \ 1145%{msim: %(endfile_sim)} \ 1146%{mcall-freebsd: %(endfile_freebsd) } \ 1147%{mcall-linux: %(endfile_linux) } \ 1148%{mcall-gnu: %(endfile_gnu) } \ 1149%{mcall-netbsd: %(endfile_netbsd) } \ 1150%{mvxworks: %(endfile_vxworks) } \ 1151%{!mads: %{!myellowknife: %{!mmvme: %{!msim: %{!mcall-freebsd: %{!mcall-linux: %{!mcall-gnu: %{!mcall-netbsd: %{!mvxworks: %(endfile_default) }}}}}}}}}" 1152 1153#define ENDFILE_DEFAULT_SPEC "" 1154 1155/* Motorola ADS support. */ 1156#define LIB_ADS_SPEC "--start-group -lads -lc --end-group" 1157 1158#define STARTFILE_ADS_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s" 1159 1160#define ENDFILE_ADS_SPEC "crtend.o%s ecrtn.o%s" 1161 1162#define LINK_START_ADS_SPEC "-T ads.ld%s" 1163 1164#define LINK_OS_ADS_SPEC "" 1165 1166#define CPP_OS_ADS_SPEC "" 1167 1168/* Motorola Yellowknife support. */ 1169#define LIB_YELLOWKNIFE_SPEC "--start-group -lyk -lc --end-group" 1170 1171#define STARTFILE_YELLOWKNIFE_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s" 1172 1173#define ENDFILE_YELLOWKNIFE_SPEC "crtend.o%s ecrtn.o%s" 1174 1175#define LINK_START_YELLOWKNIFE_SPEC "-T yellowknife.ld%s" 1176 1177#define LINK_OS_YELLOWKNIFE_SPEC "" 1178 1179#define CPP_OS_YELLOWKNIFE_SPEC "" 1180 1181/* Motorola MVME support. */ 1182#define LIB_MVME_SPEC "--start-group -lmvme -lc --end-group" 1183 1184#define STARTFILE_MVME_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s" 1185 1186#define ENDFILE_MVME_SPEC "crtend.o%s ecrtn.o%s" 1187 1188#define LINK_START_MVME_SPEC "-Ttext 0x40000" 1189 1190#define LINK_OS_MVME_SPEC "" 1191 1192#define CPP_OS_MVME_SPEC "" 1193 1194/* PowerPC simulator based on netbsd system calls support. */ 1195#define LIB_SIM_SPEC "--start-group -lsim -lc --end-group" 1196 1197#define STARTFILE_SIM_SPEC "ecrti.o%s sim-crt0.o%s crtbegin.o%s" 1198 1199#define ENDFILE_SIM_SPEC "crtend.o%s ecrtn.o%s" 1200 1201#define LINK_START_SIM_SPEC "" 1202 1203#define LINK_OS_SIM_SPEC "-m elf32ppcsim" 1204 1205#define CPP_OS_SIM_SPEC "" 1206 1207/* FreeBSD support. */ 1208 1209#define CPP_OS_FREEBSD_SPEC "\ 1210 -D__PPC__ -D__ppc__ -D__PowerPC__ -D__powerpc__ \ 1211 -Acpu=powerpc -Amachine=powerpc" 1212 1213#define STARTFILE_FREEBSD_SPEC FBSD_STARTFILE_SPEC 1214#define ENDFILE_FREEBSD_SPEC FBSD_ENDFILE_SPEC 1215#define LIB_FREEBSD_SPEC FBSD_LIB_SPEC 1216#define LINK_START_FREEBSD_SPEC "" 1217 1218#define LINK_OS_FREEBSD_SPEC "\ 1219 %{symbolic:-Bsymbolic}" 1220 1221/* GNU/Linux support. */ 1222#ifdef USE_GNULIBC_1 1223#define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \ 1224%{!mnewlib: -lc }" 1225#else 1226#define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \ 1227%{!mnewlib: %{shared:-lc} %{!shared: %{pthread:-lpthread } \ 1228%{profile:-lc_p} %{!profile:-lc}}}" 1229#endif 1230 1231#ifdef USE_GNULIBC_1 1232#define STARTFILE_LINUX_SPEC "\ 1233%{!shared: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \ 1234%{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \ 1235%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}" 1236#else 1237#define STARTFILE_LINUX_SPEC "\ 1238%{!shared: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \ 1239%{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \ 1240%{static:crtbeginT.o%s} \ 1241%{!static:%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}" 1242#endif 1243 1244#define ENDFILE_LINUX_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \ 1245%{mnewlib: ecrtn.o%s} %{!mnewlib: crtn.o%s}" 1246 1247#define LINK_START_LINUX_SPEC "" 1248 1249#define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \ 1250 %{rdynamic:-export-dynamic} \ 1251 %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}" 1252 1253#if !defined(USE_GNULIBC_1) && defined(HAVE_LD_EH_FRAME_HDR) 1254# define LINK_EH_SPEC "%{!static:--eh-frame-hdr} " 1255#endif 1256 1257#ifdef USE_GNULIBC_1 1258#define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \ 1259%{!undef: \ 1260 %{!ansi: \ 1261 %{!std=*:-Dunix -D__unix -Dlinux -D__linux} \ 1262 %{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}} \ 1263-Asystem=unix -Asystem=posix" 1264#else 1265#define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \ 1266%{!undef: \ 1267 %{!ansi: \ 1268 %{!std=*:-Dunix -D__unix -Dlinux -D__linux} \ 1269 %{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}} \ 1270-Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}" 1271#endif 1272 1273/* GNU/Hurd support. */ 1274#define LIB_GNU_SPEC "%{mnewlib: --start-group -lgnu -lc --end-group } \ 1275%{!mnewlib: %{shared:-lc} %{!shared: %{pthread:-lpthread } \ 1276%{profile:-lc_p} %{!profile:-lc}}}" 1277 1278#define STARTFILE_GNU_SPEC "\ 1279%{!shared: %{!static: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}} \ 1280%{static: %{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}}} \ 1281%{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \ 1282%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}" 1283 1284#define ENDFILE_GNU_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \ 1285%{mnewlib: ecrtn.o%s} %{!mnewlib: crtn.o%s}" 1286 1287#define LINK_START_GNU_SPEC "" 1288 1289#define LINK_OS_GNU_SPEC "-m elf32ppclinux %{!shared: %{!static: \ 1290 %{rdynamic:-export-dynamic} \ 1291 %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}" 1292 1293#define CPP_OS_GNU_SPEC "-D__unix__ -D__gnu_hurd__ -D__GNU__ \ 1294%{!undef: \ 1295 %{!ansi: -Dunix -D__unix}} \ 1296-Asystem=gnu -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}" 1297 1298/* NetBSD support. */ 1299#define LIB_NETBSD_SPEC "\ 1300%{profile:-lgmon -lc_p} %{!profile:-lc}" 1301 1302#define STARTFILE_NETBSD_SPEC "\ 1303ncrti.o%s crt0.o%s \ 1304%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}" 1305 1306#define ENDFILE_NETBSD_SPEC "\ 1307%{!shared:crtend.o%s} %{shared:crtendS.o%s} \ 1308ncrtn.o%s" 1309 1310#define LINK_START_NETBSD_SPEC "\ 1311" 1312 1313#define LINK_OS_NETBSD_SPEC "\ 1314%{!shared: %{!static: \ 1315 %{rdynamic:-export-dynamic} \ 1316 %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}}}" 1317 1318#define CPP_OS_NETBSD_SPEC "\ 1319-D__powerpc__ -D__NetBSD__ -D__ELF__ -D__KPRINTF_ATTRIBUTE__" 1320 1321/* RTEMS support. */ 1322 1323#define CPP_OS_RTEMS_SPEC "\ 1324%{!mcpu*: %{!Dppc*: %{!Dmpc*: -Dmpc750} } }\ 1325%{mcpu=403: %{!Dppc*: %{!Dmpc*: -Dppc403} } } \ 1326%{mcpu=505: %{!Dppc*: %{!Dmpc*: -Dmpc505} } } \ 1327%{mcpu=601: %{!Dppc*: %{!Dmpc*: -Dppc601} } } \ 1328%{mcpu=602: %{!Dppc*: %{!Dmpc*: -Dppc602} } } \ 1329%{mcpu=603: %{!Dppc*: %{!Dmpc*: -Dppc603} } } \ 1330%{mcpu=603e: %{!Dppc*: %{!Dmpc*: -Dppc603e} } } \ 1331%{mcpu=604: %{!Dppc*: %{!Dmpc*: -Dmpc604} } } \ 1332%{mcpu=750: %{!Dppc*: %{!Dmpc*: -Dmpc750} } } \ 1333%{mcpu=821: %{!Dppc*: %{!Dmpc*: -Dmpc821} } } \ 1334%{mcpu=860: %{!Dppc*: %{!Dmpc*: -Dmpc860} } }" 1335 1336/* VxWorks support. */ 1337/* VxWorks does all the library stuff itself. */ 1338#define LIB_VXWORKS_SPEC "" 1339 1340/* VxWorks provides the functionality of crt0.o and friends itself. */ 1341 1342#define STARTFILE_VXWORKS_SPEC "" 1343 1344#define ENDFILE_VXWORKS_SPEC "" 1345 1346/* Because it uses ld -r, vxworks has no start/end files, nor starting 1347 address. */ 1348 1349#define LINK_START_VXWORKS_SPEC "" 1350 1351#define LINK_OS_VXWORKS_SPEC "-r" 1352 1353#define CPP_OS_VXWORKS_SPEC "\ 1354-DCPU_FAMILY=PPC \ 1355%{!mcpu*: \ 1356 %{mpowerpc*: -DCPU=PPC603} \ 1357 %{!mno-powerpc: -DCPU=PPC603}} \ 1358%{mcpu=powerpc: -DCPU=PPC603} \ 1359%{mcpu=401: -DCPU=PPC403} \ 1360%{mcpu=403: -DCPU=PPC403} \ 1361%{mcpu=405: -DCPU=PPC405} \ 1362%{mcpu=601: -DCPU=PPC601} \ 1363%{mcpu=602: -DCPU=PPC603} \ 1364%{mcpu=603: -DCPU=PPC603} \ 1365%{mcpu=603e: -DCPU=PPC603} \ 1366%{mcpu=ec603e: -DCPU=PPC603} \ 1367%{mcpu=604: -DCPU=PPC604} \ 1368%{mcpu=604e: -DCPU=PPC604} \ 1369%{mcpu=620: -DCPU=PPC604} \ 1370%{mcpu=740: -DCPU=PPC603} \ 1371%{mcpu=7450: -DCPU=PPC603} \ 1372%{mcpu=750: -DCPU=PPC603} \ 1373%{mcpu=801: -DCPU=PPC603} \ 1374%{mcpu=821: -DCPU=PPC603} \ 1375%{mcpu=823: -DCPU=PPC603} \ 1376%{mcpu=860: -DCPU=PPC603}" 1377 1378/* Define any extra SPECS that the compiler needs to generate. */ 1379/* Override rs6000.h definition. */ 1380#undef SUBTARGET_EXTRA_SPECS 1381#define SUBTARGET_EXTRA_SPECS \ 1382 { "cpp_sysv", CPP_SYSV_SPEC }, \ 1383 { "cpp_sysv_default", CPP_SYSV_DEFAULT_SPEC }, \ 1384 { "cpp_endian_default", CPP_ENDIAN_DEFAULT_SPEC }, \ 1385 { "cpp_endian", CPP_ENDIAN_SPEC }, \ 1386 { "lib_ads", LIB_ADS_SPEC }, \ 1387 { "lib_yellowknife", LIB_YELLOWKNIFE_SPEC }, \ 1388 { "lib_mvme", LIB_MVME_SPEC }, \ 1389 { "lib_sim", LIB_SIM_SPEC }, \ 1390 { "lib_freebsd", LIB_FREEBSD_SPEC }, \ 1391 { "lib_gnu", LIB_GNU_SPEC }, \ 1392 { "lib_linux", LIB_LINUX_SPEC }, \ 1393 { "lib_netbsd", LIB_NETBSD_SPEC }, \ 1394 { "lib_vxworks", LIB_VXWORKS_SPEC }, \ 1395 { "lib_default", LIB_DEFAULT_SPEC }, \ 1396 { "startfile_ads", STARTFILE_ADS_SPEC }, \ 1397 { "startfile_yellowknife", STARTFILE_YELLOWKNIFE_SPEC }, \ 1398 { "startfile_mvme", STARTFILE_MVME_SPEC }, \ 1399 { "startfile_sim", STARTFILE_SIM_SPEC }, \ 1400 { "startfile_freebsd", STARTFILE_FREEBSD_SPEC }, \ 1401 { "startfile_gnu", STARTFILE_GNU_SPEC }, \ 1402 { "startfile_linux", STARTFILE_LINUX_SPEC }, \ 1403 { "startfile_netbsd", STARTFILE_NETBSD_SPEC }, \ 1404 { "startfile_vxworks", STARTFILE_VXWORKS_SPEC }, \ 1405 { "startfile_default", STARTFILE_DEFAULT_SPEC }, \ 1406 { "endfile_ads", ENDFILE_ADS_SPEC }, \ 1407 { "endfile_yellowknife", ENDFILE_YELLOWKNIFE_SPEC }, \ 1408 { "endfile_mvme", ENDFILE_MVME_SPEC }, \ 1409 { "endfile_sim", ENDFILE_SIM_SPEC }, \ 1410 { "endfile_freebsd", ENDFILE_FREEBSD_SPEC }, \ 1411 { "endfile_gnu", ENDFILE_GNU_SPEC }, \ 1412 { "endfile_linux", ENDFILE_LINUX_SPEC }, \ 1413 { "endfile_netbsd", ENDFILE_NETBSD_SPEC }, \ 1414 { "endfile_vxworks", ENDFILE_VXWORKS_SPEC }, \ 1415 { "endfile_default", ENDFILE_DEFAULT_SPEC }, \ 1416 { "link_path", LINK_PATH_SPEC }, \ 1417 { "link_shlib", LINK_SHLIB_SPEC }, \ 1418 { "link_target", LINK_TARGET_SPEC }, \ 1419 { "link_start", LINK_START_SPEC }, \ 1420 { "link_start_ads", LINK_START_ADS_SPEC }, \ 1421 { "link_start_yellowknife", LINK_START_YELLOWKNIFE_SPEC }, \ 1422 { "link_start_mvme", LINK_START_MVME_SPEC }, \ 1423 { "link_start_sim", LINK_START_SIM_SPEC }, \ 1424 { "link_start_freebsd", LINK_START_FREEBSD_SPEC }, \ 1425 { "link_start_gnu", LINK_START_GNU_SPEC }, \ 1426 { "link_start_linux", LINK_START_LINUX_SPEC }, \ 1427 { "link_start_netbsd", LINK_START_NETBSD_SPEC }, \ 1428 { "link_start_vxworks", LINK_START_VXWORKS_SPEC }, \ 1429 { "link_start_default", LINK_START_DEFAULT_SPEC }, \ 1430 { "link_os", LINK_OS_SPEC }, \ 1431 { "link_os_ads", LINK_OS_ADS_SPEC }, \ 1432 { "link_os_yellowknife", LINK_OS_YELLOWKNIFE_SPEC }, \ 1433 { "link_os_mvme", LINK_OS_MVME_SPEC }, \ 1434 { "link_os_sim", LINK_OS_SIM_SPEC }, \ 1435 { "link_os_freebsd", LINK_OS_FREEBSD_SPEC }, \ 1436 { "link_os_linux", LINK_OS_LINUX_SPEC }, \ 1437 { "link_os_gnu", LINK_OS_GNU_SPEC }, \ 1438 { "link_os_netbsd", LINK_OS_NETBSD_SPEC }, \ 1439 { "link_os_vxworks", LINK_OS_VXWORKS_SPEC }, \ 1440 { "link_os_default", LINK_OS_DEFAULT_SPEC }, \ 1441 { "cc1_endian_big", CC1_ENDIAN_BIG_SPEC }, \ 1442 { "cc1_endian_little", CC1_ENDIAN_LITTLE_SPEC }, \ 1443 { "cc1_endian_default", CC1_ENDIAN_DEFAULT_SPEC }, \ 1444 { "cpp_endian_big", CPP_ENDIAN_BIG_SPEC }, \ 1445 { "cpp_endian_little", CPP_ENDIAN_LITTLE_SPEC }, \ 1446 { "cpp_float_default", CPP_FLOAT_DEFAULT_SPEC }, \ 1447 { "cpp_longdouble_default", CPP_LONGDOUBLE_DEFAULT_SPEC }, \ 1448 { "cpp_os_ads", CPP_OS_ADS_SPEC }, \ 1449 { "cpp_os_yellowknife", CPP_OS_YELLOWKNIFE_SPEC }, \ 1450 { "cpp_os_mvme", CPP_OS_MVME_SPEC }, \ 1451 { "cpp_os_sim", CPP_OS_SIM_SPEC }, \ 1452 { "cpp_os_freebsd", CPP_OS_FREEBSD_SPEC }, \ 1453 { "cpp_os_gnu", CPP_OS_GNU_SPEC }, \ 1454 { "cpp_os_linux", CPP_OS_LINUX_SPEC }, \ 1455 { "cpp_os_netbsd", CPP_OS_NETBSD_SPEC }, \ 1456 { "cpp_os_vxworks", CPP_OS_VXWORKS_SPEC }, \ 1457 { "cpp_os_rtems", CPP_OS_RTEMS_SPEC }, \ 1458 { "cpp_os_default", CPP_OS_DEFAULT_SPEC }, 1459 1460/* Define this macro as a C expression for the initializer of an 1461 array of string to tell the driver program which options are 1462 defaults for this target and thus do not need to be handled 1463 specially when using `MULTILIB_OPTIONS'. 1464 1465 Do not define this macro if `MULTILIB_OPTIONS' is not defined in 1466 the target makefile fragment or if none of the options listed in 1467 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */ 1468 1469#define MULTILIB_DEFAULTS { "mbig", "mcall-sysv" } 1470 1471/* Define this macro if the code for function profiling should come 1472 before the function prologue. Normally, the profiling code comes 1473 after. */ 1474#define PROFILE_BEFORE_PROLOGUE 1 1475 1476/* Function name to call to do profiling. */ 1477#define RS6000_MCOUNT "_mcount" 1478 1479/* Define this macro (to a value of 1) if you want to support the 1480 Win32 style pragmas #pragma pack(push,<n>)' and #pragma 1481 pack(pop)'. The pack(push,<n>) pragma specifies the maximum 1482 alignment (in bytes) of fields within a structure, in much the 1483 same way as the __aligned__' and __packed__' __attribute__'s 1484 do. A pack value of zero resets the behaviour to the default. 1485 Successive invocations of this pragma cause the previous values to 1486 be stacked, so that invocations of #pragma pack(pop)' will return 1487 to the previous value. */ 1488 1489#define HANDLE_PRAGMA_PACK_PUSH_POP 1 1490 1491/* Define library calls for quad FP operations. These are all part of the 1492 PowerPC 32bit ABI. */ 1493#define ADDTF3_LIBCALL "_q_add" 1494#define DIVTF3_LIBCALL "_q_div" 1495#define EXTENDDFTF2_LIBCALL "_q_dtoq" 1496#define EQTF2_LIBCALL "_q_feq" 1497#define GETF2_LIBCALL "_q_fge" 1498#define GTTF2_LIBCALL "_q_fgt" 1499#define LETF2_LIBCALL "_q_fle" 1500#define LTTF2_LIBCALL "_q_flt" 1501#define NETF2_LIBCALL "_q_fne" 1502#define FLOATSITF2_LIBCALL "_q_itoq" 1503#define MULTF3_LIBCALL "_q_mul" 1504#define NEGTF2_LIBCALL "_q_neg" 1505#define TRUNCTFDF2_LIBCALL "_q_qtod" 1506#define FIX_TRUNCTFSI2_LIBCALL "_q_qtoi" 1507#define TRUNCTFSF2_LIBCALL "_q_qtos" 1508#define FIXUNS_TRUNCTFSI2_LIBCALL "_q_qtou" 1509#define SQRTTF_LIBCALL "_q_sqrt" 1510#define EXTENDSFTF2_LIBCALL "_q_stoq" 1511#define SUBTF3_LIBCALL "_q_sub" 1512#define FLOATUNSSITF2_LIBCALL "_q_utoq" 1513 1514#define INIT_TARGET_OPTABS \ 1515 do { \ 1516 if (TARGET_HARD_FLOAT) \ 1517 { \ 1518 add_optab->handlers[(int) TFmode].libfunc \ 1519 = init_one_libfunc (ADDTF3_LIBCALL); \ 1520 sub_optab->handlers[(int) TFmode].libfunc \ 1521 = init_one_libfunc (SUBTF3_LIBCALL); \ 1522 neg_optab->handlers[(int) TFmode].libfunc \ 1523 = init_one_libfunc (NEGTF2_LIBCALL); \ 1524 smul_optab->handlers[(int) TFmode].libfunc \ 1525 = init_one_libfunc (MULTF3_LIBCALL); \ 1526 sdiv_optab->handlers[(int) TFmode].libfunc \ 1527 = init_one_libfunc (DIVTF3_LIBCALL); \ 1528 eqtf2_libfunc = init_one_libfunc (EQTF2_LIBCALL); \ 1529 netf2_libfunc = init_one_libfunc (NETF2_LIBCALL); \ 1530 gttf2_libfunc = init_one_libfunc (GTTF2_LIBCALL); \ 1531 getf2_libfunc = init_one_libfunc (GETF2_LIBCALL); \ 1532 lttf2_libfunc = init_one_libfunc (LTTF2_LIBCALL); \ 1533 letf2_libfunc = init_one_libfunc (LETF2_LIBCALL); \ 1534 trunctfsf2_libfunc = init_one_libfunc (TRUNCTFSF2_LIBCALL); \ 1535 trunctfdf2_libfunc = init_one_libfunc (TRUNCTFDF2_LIBCALL); \ 1536 extendsftf2_libfunc = init_one_libfunc (EXTENDSFTF2_LIBCALL); \ 1537 extenddftf2_libfunc = init_one_libfunc (EXTENDDFTF2_LIBCALL); \ 1538 floatsitf_libfunc = init_one_libfunc (FLOATSITF2_LIBCALL); \ 1539 fixtfsi_libfunc = init_one_libfunc (FIX_TRUNCTFSI2_LIBCALL); \ 1540 fixunstfsi_libfunc \ 1541 = init_one_libfunc (FIXUNS_TRUNCTFSI2_LIBCALL); \ 1542 if (TARGET_PPC_GPOPT || TARGET_POWER2) \ 1543 sqrt_optab->handlers[(int) TFmode].libfunc \ 1544 = init_one_libfunc (SQRTTF_LIBCALL); \ 1545 } \ 1546 } while (0) 1547 1548/* Select a format to encode pointers in exception handling data. CODE 1549 is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is 1550 true if the symbol may be affected by dynamic relocations. */ 1551#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ 1552 ((flag_pic || TARGET_RELOCATABLE) \ 1553 ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4) \ 1554 : DW_EH_PE_absptr) 1555 1556#define TARGET_ASM_EXCEPTION_SECTION readonly_data_section 1557 1558#define DOUBLE_INT_ASM_OP "\t.quad\t" 1559 1560/* Generate entries in .fixup for relocatable addresses. */ 1561#define RELOCATABLE_NEEDS_FIXUP 1562