1/* Target definitions for GNU compiler for PowerPC running System V.4 2 Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 3 2004, 2005, 2006, 2007 Free Software Foundation, Inc. 4 Contributed by Cygnus Support. 5 6 This file is part of GCC. 7 8 GCC is free software; you can redistribute it and/or modify it 9 under the terms of the GNU General Public License as published 10 by the Free Software Foundation; either version 2, or (at your 11 option) any later version. 12 13 GCC is distributed in the hope that it will be useful, but WITHOUT 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 16 License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with GCC; see the file COPYING. If not, write to the 20 Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, 21 MA 02110-1301, USA. */ 22 23/* Header files should be C++ aware in general. */ 24#undef NO_IMPLICIT_EXTERN_C 25#define NO_IMPLICIT_EXTERN_C 26 27/* Yes! We are ELF. */ 28#define TARGET_OBJECT_FORMAT OBJECT_ELF 29 30/* Default ABI to compile code for. */ 31#define DEFAULT_ABI rs6000_current_abi 32 33/* Default ABI to use. */ 34#define RS6000_ABI_NAME "sysv" 35 36/* Override rs6000.h definition. */ 37#undef ASM_DEFAULT_SPEC 38#define ASM_DEFAULT_SPEC "-mppc" 39 40/* Small data support types. */ 41enum rs6000_sdata_type { 42 SDATA_NONE, /* No small data support. */ 43 SDATA_DATA, /* Just put data in .sbss/.sdata, don't use relocs. */ 44 SDATA_SYSV, /* Use r13 to point to .sdata/.sbss. */ 45 SDATA_EABI /* Use r13 like above, r2 points to .sdata2/.sbss2. */ 46}; 47 48extern enum rs6000_sdata_type rs6000_sdata; 49 50#define TARGET_TOC ((target_flags & MASK_64BIT) \ 51 || ((target_flags & (MASK_RELOCATABLE \ 52 | MASK_MINIMAL_TOC)) \ 53 && flag_pic > 1) \ 54 || DEFAULT_ABI == ABI_AIX) 55 56#define TARGET_BITFIELD_TYPE (! TARGET_NO_BITFIELD_TYPE) 57#define TARGET_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN) 58#define TARGET_NO_PROTOTYPE (! TARGET_PROTOTYPE) 59#define TARGET_NO_TOC (! TARGET_TOC) 60#define TARGET_NO_EABI (! TARGET_EABI) 61 62#ifdef HAVE_AS_REL16 63#undef TARGET_SECURE_PLT 64#define TARGET_SECURE_PLT secure_plt 65#endif 66 67extern const char *rs6000_abi_name; 68extern const char *rs6000_sdata_name; 69extern const char *rs6000_tls_size_string; /* For -mtls-size= */ 70 71#define SDATA_DEFAULT_SIZE 8 72 73/* Sometimes certain combinations of command options do not make sense 74 on a particular target machine. You can define a macro 75 `OVERRIDE_OPTIONS' to take account of this. This macro, if 76 defined, is executed once just after all the command options have 77 been parsed. 78 79 The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to 80 get control. */ 81 82#define SUBTARGET_OVERRIDE_OPTIONS \ 83do { \ 84 if (!g_switch_set) \ 85 g_switch_value = SDATA_DEFAULT_SIZE; \ 86 \ 87 if (rs6000_abi_name == NULL) \ 88 rs6000_abi_name = RS6000_ABI_NAME; \ 89 \ 90 if (!strcmp (rs6000_abi_name, "sysv")) \ 91 rs6000_current_abi = ABI_V4; \ 92 else if (!strcmp (rs6000_abi_name, "sysv-noeabi")) \ 93 { \ 94 rs6000_current_abi = ABI_V4; \ 95 target_flags &= ~ MASK_EABI; \ 96 } \ 97 else if (!strcmp (rs6000_abi_name, "sysv-eabi") \ 98 || !strcmp (rs6000_abi_name, "eabi")) \ 99 { \ 100 rs6000_current_abi = ABI_V4; \ 101 target_flags |= MASK_EABI; \ 102 } \ 103 else if (!strcmp (rs6000_abi_name, "aixdesc")) \ 104 rs6000_current_abi = ABI_AIX; \ 105 else if (!strcmp (rs6000_abi_name, "freebsd")) \ 106 rs6000_current_abi = ABI_V4; \ 107 else if (!strcmp (rs6000_abi_name, "linux")) \ 108 { \ 109 if (TARGET_64BIT) \ 110 rs6000_current_abi = ABI_AIX; \ 111 else \ 112 rs6000_current_abi = ABI_V4; \ 113 } \ 114 else if (!strcmp (rs6000_abi_name, "gnu")) \ 115 rs6000_current_abi = ABI_V4; \ 116 else if (!strcmp (rs6000_abi_name, "netbsd")) \ 117 rs6000_current_abi = ABI_V4; \ 118 else if (!strcmp (rs6000_abi_name, "openbsd")) \ 119 rs6000_current_abi = ABI_V4; \ 120 else if (!strcmp (rs6000_abi_name, "i960-old")) \ 121 { \ 122 rs6000_current_abi = ABI_V4; \ 123 target_flags |= (MASK_LITTLE_ENDIAN | MASK_EABI \ 124 | MASK_NO_BITFIELD_WORD); \ 125 target_flags &= ~MASK_STRICT_ALIGN; \ 126 } \ 127 else \ 128 { \ 129 rs6000_current_abi = ABI_V4; \ 130 error ("bad value for -mcall-%s", rs6000_abi_name); \ 131 } \ 132 \ 133 if (rs6000_sdata_name) \ 134 { \ 135 if (!strcmp (rs6000_sdata_name, "none")) \ 136 rs6000_sdata = SDATA_NONE; \ 137 else if (!strcmp (rs6000_sdata_name, "data")) \ 138 rs6000_sdata = SDATA_DATA; \ 139 else if (!strcmp (rs6000_sdata_name, "default")) \ 140 rs6000_sdata = (TARGET_EABI) ? SDATA_EABI : SDATA_SYSV; \ 141 else if (!strcmp (rs6000_sdata_name, "sysv")) \ 142 rs6000_sdata = SDATA_SYSV; \ 143 else if (!strcmp (rs6000_sdata_name, "eabi")) \ 144 rs6000_sdata = SDATA_EABI; \ 145 else \ 146 error ("bad value for -msdata=%s", rs6000_sdata_name); \ 147 } \ 148 else if (DEFAULT_ABI == ABI_V4) \ 149 { \ 150 rs6000_sdata = SDATA_DATA; \ 151 rs6000_sdata_name = "data"; \ 152 } \ 153 else \ 154 { \ 155 rs6000_sdata = SDATA_NONE; \ 156 rs6000_sdata_name = "none"; \ 157 } \ 158 \ 159 if (TARGET_RELOCATABLE && \ 160 (rs6000_sdata == SDATA_EABI || rs6000_sdata == SDATA_SYSV)) \ 161 { \ 162 rs6000_sdata = SDATA_DATA; \ 163 error ("-mrelocatable and -msdata=%s are incompatible", \ 164 rs6000_sdata_name); \ 165 } \ 166 \ 167 else if (flag_pic && DEFAULT_ABI != ABI_AIX \ 168 && (rs6000_sdata == SDATA_EABI \ 169 || rs6000_sdata == SDATA_SYSV)) \ 170 { \ 171 rs6000_sdata = SDATA_DATA; \ 172 error ("-f%s and -msdata=%s are incompatible", \ 173 (flag_pic > 1) ? "PIC" : "pic", \ 174 rs6000_sdata_name); \ 175 } \ 176 \ 177 if ((rs6000_sdata != SDATA_NONE && DEFAULT_ABI != ABI_V4) \ 178 || (rs6000_sdata == SDATA_EABI && !TARGET_EABI)) \ 179 { \ 180 rs6000_sdata = SDATA_NONE; \ 181 error ("-msdata=%s and -mcall-%s are incompatible", \ 182 rs6000_sdata_name, rs6000_abi_name); \ 183 } \ 184 \ 185 targetm.have_srodata_section = rs6000_sdata == SDATA_EABI; \ 186 \ 187 if (TARGET_RELOCATABLE && !TARGET_MINIMAL_TOC) \ 188 { \ 189 target_flags |= MASK_MINIMAL_TOC; \ 190 error ("-mrelocatable and -mno-minimal-toc are incompatible"); \ 191 } \ 192 \ 193 if (TARGET_RELOCATABLE && rs6000_current_abi == ABI_AIX) \ 194 { \ 195 target_flags &= ~MASK_RELOCATABLE; \ 196 error ("-mrelocatable and -mcall-%s are incompatible", \ 197 rs6000_abi_name); \ 198 } \ 199 \ 200 if (!TARGET_64BIT && flag_pic > 1 && rs6000_current_abi == ABI_AIX) \ 201 { \ 202 flag_pic = 0; \ 203 error ("-fPIC and -mcall-%s are incompatible", \ 204 rs6000_abi_name); \ 205 } \ 206 \ 207 if (rs6000_current_abi == ABI_AIX && TARGET_LITTLE_ENDIAN) \ 208 { \ 209 target_flags &= ~MASK_LITTLE_ENDIAN; \ 210 error ("-mcall-aixdesc must be big endian"); \ 211 } \ 212 \ 213 if (TARGET_SECURE_PLT != secure_plt) \ 214 { \ 215 error ("-msecure-plt not supported by your assembler"); \ 216 } \ 217 \ 218 /* Treat -fPIC the same as -mrelocatable. */ \ 219 if (flag_pic > 1 && DEFAULT_ABI != ABI_AIX) \ 220 { \ 221 target_flags |= MASK_RELOCATABLE | MASK_MINIMAL_TOC; \ 222 TARGET_NO_FP_IN_TOC = 1; \ 223 } \ 224 \ 225 else if (TARGET_RELOCATABLE) \ 226 flag_pic = 2; \ 227} while (0) 228 229#ifndef RS6000_BI_ARCH 230# define SUBSUBTARGET_OVERRIDE_OPTIONS \ 231do { \ 232 if ((TARGET_DEFAULT ^ target_flags) & MASK_64BIT) \ 233 error ("-m%s not supported in this configuration", \ 234 (target_flags & MASK_64BIT) ? "64" : "32"); \ 235} while (0) 236#endif 237 238/* Override rs6000.h definition. */ 239#undef TARGET_DEFAULT 240#define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS) 241 242/* Override rs6000.h definition. */ 243#undef PROCESSOR_DEFAULT 244#define PROCESSOR_DEFAULT PROCESSOR_PPC750 245 246/* SVR4 only defined for PowerPC, so short-circuit POWER patterns. */ 247#undef TARGET_POWER 248#define TARGET_POWER 0 249 250#define FIXED_R2 1 251/* System V.4 uses register 13 as a pointer to the small data area, 252 so it is not available to the normal user. */ 253#define FIXED_R13 1 254 255/* Override default big endianism definitions in rs6000.h. */ 256#undef BYTES_BIG_ENDIAN 257#undef WORDS_BIG_ENDIAN 258#define BYTES_BIG_ENDIAN (TARGET_BIG_ENDIAN) 259#define WORDS_BIG_ENDIAN (TARGET_BIG_ENDIAN) 260 261/* Define this to set the endianness to use in libgcc2.c, which can 262 not depend on target_flags. */ 263#if !defined(__LITTLE_ENDIAN__) && !defined(__sun__) 264#define LIBGCC2_WORDS_BIG_ENDIAN 1 265#else 266#define LIBGCC2_WORDS_BIG_ENDIAN 0 267#endif 268 269/* Define cutoff for using external functions to save floating point. 270 Currently on V.4, always use inline stores. */ 271#define FP_SAVE_INLINE(FIRST_REG) ((FIRST_REG) < 64) 272 273/* Put jump tables in read-only memory, rather than in .text. */ 274#define JUMP_TABLES_IN_TEXT_SECTION 0 275 276/* Prefix and suffix to use to saving floating point. */ 277#define SAVE_FP_PREFIX "_savefpr_" 278#define SAVE_FP_SUFFIX "_l" 279 280/* Prefix and suffix to use to restoring floating point. */ 281#define RESTORE_FP_PREFIX "_restfpr_" 282#define RESTORE_FP_SUFFIX "_l" 283 284/* Type used for ptrdiff_t, as a string used in a declaration. */ 285#ifndef PTRDIFF_TYPE 286#define PTRDIFF_TYPE "int" 287#endif 288 289/* Type used for wchar_t, as a string used in a declaration. */ 290/* Override svr4.h definition. */ 291#undef WCHAR_TYPE 292#define WCHAR_TYPE "long int" 293 294/* Width of wchar_t in bits. */ 295/* Override svr4.h definition. */ 296#undef WCHAR_TYPE_SIZE 297#define WCHAR_TYPE_SIZE 32 298 299/* Make int foo : 8 not cause structures to be aligned to an int boundary. */ 300/* Override elfos.h definition. */ 301#undef PCC_BITFIELD_TYPE_MATTERS 302#define PCC_BITFIELD_TYPE_MATTERS (TARGET_BITFIELD_TYPE) 303 304#undef BITFIELD_NBYTES_LIMITED 305#define BITFIELD_NBYTES_LIMITED (TARGET_NO_BITFIELD_WORD) 306 307/* Define this macro to be the value 1 if instructions will fail to 308 work if given data not on the nominal alignment. If instructions 309 will merely go slower in that case, define this macro as 0. */ 310#undef STRICT_ALIGNMENT 311#define STRICT_ALIGNMENT (TARGET_STRICT_ALIGN) 312 313/* Define this macro if you wish to preserve a certain alignment for 314 the stack pointer, greater than what the hardware enforces. The 315 definition is a C expression for the desired alignment (measured 316 in bits). This macro must evaluate to a value equal to or larger 317 than STACK_BOUNDARY. 318 For the SYSV ABI and variants the alignment of the stack pointer 319 is usually controlled manually in rs6000.c. However, to maintain 320 alignment across alloca () in all circumstances, 321 PREFERRED_STACK_BOUNDARY needs to be set as well. 322 This has the additional advantage of allowing a bigger maximum 323 alignment of user objects on the stack. */ 324 325#undef PREFERRED_STACK_BOUNDARY 326#define PREFERRED_STACK_BOUNDARY 128 327 328/* Real stack boundary as mandated by the appropriate ABI. */ 329#define ABI_STACK_BOUNDARY \ 330 ((TARGET_EABI && !TARGET_ALTIVEC && !TARGET_ALTIVEC_ABI) ? 64 : 128) 331 332/* An expression for the alignment of a structure field FIELD if the 333 alignment computed in the usual way is COMPUTED. */ 334#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \ 335 ((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE) \ 336 ? 128 : COMPUTED) 337 338#undef BIGGEST_FIELD_ALIGNMENT 339 340/* Use ELF style section commands. */ 341 342#define TEXT_SECTION_ASM_OP "\t.section\t\".text\"" 343 344#define DATA_SECTION_ASM_OP "\t.section\t\".data\"" 345 346#define BSS_SECTION_ASM_OP "\t.section\t\".bss\"" 347 348/* Override elfos.h definition. */ 349#undef INIT_SECTION_ASM_OP 350#define INIT_SECTION_ASM_OP "\t.section\t\".init\",\"ax\"" 351 352/* Override elfos.h definition. */ 353#undef FINI_SECTION_ASM_OP 354#define FINI_SECTION_ASM_OP "\t.section\t\".fini\",\"ax\"" 355 356#define TOC_SECTION_ASM_OP "\t.section\t\".got\",\"aw\"" 357 358/* Put PC relative got entries in .got2. */ 359#define MINIMAL_TOC_SECTION_ASM_OP \ 360 (TARGET_RELOCATABLE || (flag_pic && DEFAULT_ABI != ABI_AIX) \ 361 ? "\t.section\t\".got2\",\"aw\"" : "\t.section\t\".got1\",\"aw\"") 362 363#define SDATA_SECTION_ASM_OP "\t.section\t\".sdata\",\"aw\"" 364#define SDATA2_SECTION_ASM_OP "\t.section\t\".sdata2\",\"a\"" 365#define SBSS_SECTION_ASM_OP "\t.section\t\".sbss\",\"aw\",@nobits" 366 367/* Override default elf definitions. */ 368#define TARGET_ASM_INIT_SECTIONS rs6000_elf_asm_init_sections 369#undef TARGET_ASM_RELOC_RW_MASK 370#define TARGET_ASM_RELOC_RW_MASK rs6000_elf_reloc_rw_mask 371#undef TARGET_ASM_SELECT_RTX_SECTION 372#define TARGET_ASM_SELECT_RTX_SECTION rs6000_elf_select_rtx_section 373 374/* Return nonzero if this entry is to be written into the constant pool 375 in a special way. We do so if this is a SYMBOL_REF, LABEL_REF or a CONST 376 containing one of them. If -mfp-in-toc (the default), we also do 377 this for floating-point constants. We actually can only do this 378 if the FP formats of the target and host machines are the same, but 379 we can't check that since not every file that uses 380 GO_IF_LEGITIMATE_ADDRESS_P includes real.h. 381 382 Unlike AIX, we don't key off of -mminimal-toc, but instead do not 383 allow floating point constants in the TOC if -mrelocatable. */ 384 385#undef ASM_OUTPUT_SPECIAL_POOL_ENTRY_P 386#define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE) \ 387 (TARGET_TOC \ 388 && (GET_CODE (X) == SYMBOL_REF \ 389 || (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS \ 390 && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF) \ 391 || GET_CODE (X) == LABEL_REF \ 392 || (GET_CODE (X) == CONST_INT \ 393 && GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode)) \ 394 || (!TARGET_NO_FP_IN_TOC \ 395 && !TARGET_RELOCATABLE \ 396 && GET_CODE (X) == CONST_DOUBLE \ 397 && SCALAR_FLOAT_MODE_P (GET_MODE (X)) \ 398 && BITS_PER_WORD == HOST_BITS_PER_INT))) 399 400/* These macros generate the special .type and .size directives which 401 are used to set the corresponding fields of the linker symbol table 402 entries in an ELF object file under SVR4. These macros also output 403 the starting labels for the relevant functions/objects. */ 404 405/* Write the extra assembler code needed to declare a function properly. 406 Some svr4 assemblers need to also have something extra said about the 407 function's return value. We allow for that here. */ 408 409extern int rs6000_pic_labelno; 410 411/* Override elfos.h definition. */ 412#undef ASM_DECLARE_FUNCTION_NAME 413#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ 414 rs6000_elf_declare_function_name ((FILE), (NAME), (DECL)) 415 416/* The USER_LABEL_PREFIX stuff is affected by the -fleading-underscore 417 flag. The LOCAL_LABEL_PREFIX variable is used by dbxelf.h. */ 418 419#define LOCAL_LABEL_PREFIX "." 420#define USER_LABEL_PREFIX "" 421 422/* svr4.h overrides (*targetm.asm_out.internal_label). */ 423 424#define ASM_OUTPUT_INTERNAL_LABEL_PREFIX(FILE,PREFIX) \ 425 asm_fprintf (FILE, "%L%s", PREFIX) 426 427/* Globalizing directive for a label. */ 428#define GLOBAL_ASM_OP "\t.globl " 429 430/* This says how to output assembler code to declare an 431 uninitialized internal linkage data object. Under SVR4, 432 the linker seems to want the alignment of data objects 433 to depend on their types. We do exactly that here. */ 434 435#define LOCAL_ASM_OP "\t.local\t" 436 437#define LCOMM_ASM_OP "\t.lcomm\t" 438 439/* Describe how to emit uninitialized local items. */ 440#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \ 441do { \ 442 if ((DECL) && rs6000_elf_in_small_data_p (DECL)) \ 443 { \ 444 switch_to_section (sbss_section); \ 445 ASM_OUTPUT_ALIGN (FILE, exact_log2 (ALIGN / BITS_PER_UNIT)); \ 446 ASM_OUTPUT_LABEL (FILE, NAME); \ 447 ASM_OUTPUT_SKIP (FILE, SIZE); \ 448 if (!flag_inhibit_size_directive && (SIZE) > 0) \ 449 ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, SIZE); \ 450 } \ 451 else \ 452 { \ 453 fprintf (FILE, "%s", LCOMM_ASM_OP); \ 454 assemble_name ((FILE), (NAME)); \ 455 fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \ 456 (SIZE), (ALIGN) / BITS_PER_UNIT); \ 457 } \ 458 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \ 459} while (0) 460 461/* Describe how to emit uninitialized external linkage items. */ 462#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ 463do { \ 464 ASM_OUTPUT_ALIGNED_DECL_LOCAL (FILE, DECL, NAME, SIZE, ALIGN); \ 465} while (0) 466 467#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN 468/* To support -falign-* switches we need to use .p2align so 469 that alignment directives in code sections will be padded 470 with no-op instructions, rather than zeroes. */ 471#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \ 472 if ((LOG) != 0) \ 473 { \ 474 if ((MAX_SKIP) == 0) \ 475 fprintf ((FILE), "\t.p2align %d\n", (LOG)); \ 476 else \ 477 fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \ 478 } 479#endif 480 481/* This is how to output code to push a register on the stack. 482 It need not be very fast code. 483 484 On the rs6000, we must keep the backchain up to date. In order 485 to simplify things, always allocate 16 bytes for a push (System V 486 wants to keep stack aligned to a 16 byte boundary). */ 487 488#define ASM_OUTPUT_REG_PUSH(FILE, REGNO) \ 489do { \ 490 if (DEFAULT_ABI == ABI_V4) \ 491 asm_fprintf (FILE, \ 492 "\t{stu|stwu} %s,-16(%s)\n\t{st|stw} %s,12(%s)\n", \ 493 reg_names[1], reg_names[1], reg_names[REGNO], \ 494 reg_names[1]); \ 495} while (0) 496 497/* This is how to output an insn to pop a register from the stack. 498 It need not be very fast code. */ 499 500#define ASM_OUTPUT_REG_POP(FILE, REGNO) \ 501do { \ 502 if (DEFAULT_ABI == ABI_V4) \ 503 asm_fprintf (FILE, \ 504 "\t{l|lwz} %s,12(%s)\n\t{ai|addic} %s,%s,16\n", \ 505 reg_names[REGNO], reg_names[1], reg_names[1], \ 506 reg_names[1]); \ 507} while (0) 508 509/* Switch Recognition by gcc.c. Add -G xx support. */ 510 511/* Override svr4.h definition. */ 512#undef SWITCH_TAKES_ARG 513#define SWITCH_TAKES_ARG(CHAR) \ 514 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \ 515 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \ 516 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \ 517 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \ 518 || (CHAR) == 'B' || (CHAR) == 'b' || (CHAR) == 'G') 519 520extern int fixuplabelno; 521 522/* Handle constructors specially for -mrelocatable. */ 523#define TARGET_ASM_CONSTRUCTOR rs6000_elf_asm_out_constructor 524#define TARGET_ASM_DESTRUCTOR rs6000_elf_asm_out_destructor 525 526/* This is the end of what might become sysv4.h. */ 527 528/* Use DWARF 2 debugging information by default. */ 529#undef PREFERRED_DEBUGGING_TYPE 530#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG 531 532/* Historically we have also supported stabs debugging. */ 533#define DBX_DEBUGGING_INFO 1 534 535#define TARGET_ENCODE_SECTION_INFO rs6000_elf_encode_section_info 536#define TARGET_IN_SMALL_DATA_P rs6000_elf_in_small_data_p 537 538/* The ELF version doesn't encode [DS] or whatever at the end of symbols. */ 539 540#define RS6000_OUTPUT_BASENAME(FILE, NAME) \ 541 assemble_name (FILE, NAME) 542 543/* We have to output the stabs for the function name *first*, before 544 outputting its label. */ 545 546#define DBX_FUNCTION_FIRST 547 548/* This is the end of what might become sysv4dbx.h. */ 549 550#ifndef TARGET_VERSION 551#define TARGET_VERSION fprintf (stderr, " (PowerPC System V.4)"); 552#endif 553 554#define TARGET_OS_SYSV_CPP_BUILTINS() \ 555 do \ 556 { \ 557 if (target_flags_explicit \ 558 & MASK_RELOCATABLE) \ 559 builtin_define ("_RELOCATABLE"); \ 560 } \ 561 while (0) 562 563#ifndef TARGET_OS_CPP_BUILTINS 564#define TARGET_OS_CPP_BUILTINS() \ 565 do \ 566 { \ 567 builtin_define_std ("PPC"); \ 568 builtin_define_std ("unix"); \ 569 builtin_define ("__svr4__"); \ 570 builtin_assert ("system=unix"); \ 571 builtin_assert ("system=svr4"); \ 572 builtin_assert ("cpu=powerpc"); \ 573 builtin_assert ("machine=powerpc"); \ 574 TARGET_OS_SYSV_CPP_BUILTINS (); \ 575 } \ 576 while (0) 577#endif 578 579/* Pass various options to the assembler. */ 580/* Override svr4.h definition. */ 581#undef ASM_SPEC 582#define ASM_SPEC "%(asm_cpu) \ 583%{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \ 584%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \ 585%{mrelocatable} %{mrelocatable-lib} %{fpic|fpie|fPIC|fPIE:-K PIC} \ 586%{memb|msdata|msdata=eabi: -memb} \ 587%{mlittle|mlittle-endian:-mlittle; \ 588 mbig|mbig-endian :-mbig; \ 589 mcall-aixdesc | \ 590 mcall-freebsd | \ 591 mcall-netbsd | \ 592 mcall-openbsd | \ 593 mcall-linux | \ 594 mcall-gnu :-mbig; \ 595 mcall-i960-old :-mlittle}" 596 597#define CC1_ENDIAN_BIG_SPEC "" 598 599#define CC1_ENDIAN_LITTLE_SPEC "\ 600%{!mstrict-align: %{!mno-strict-align: \ 601 %{!mcall-i960-old: \ 602 -mstrict-align \ 603 } \ 604}}" 605 606#define CC1_ENDIAN_DEFAULT_SPEC "%(cc1_endian_big)" 607 608#ifndef CC1_SECURE_PLT_DEFAULT_SPEC 609#define CC1_SECURE_PLT_DEFAULT_SPEC "" 610#endif 611 612/* Pass -G xxx to the compiler and set correct endian mode. */ 613#define CC1_SPEC "%{G*} \ 614%{mlittle|mlittle-endian: %(cc1_endian_little); \ 615 mbig |mbig-endian : %(cc1_endian_big); \ 616 mcall-aixdesc | \ 617 mcall-freebsd | \ 618 mcall-netbsd | \ 619 mcall-openbsd | \ 620 mcall-linux | \ 621 mcall-gnu : -mbig %(cc1_endian_big); \ 622 mcall-i960-old : -mlittle %(cc1_endian_little); \ 623 : %(cc1_endian_default)} \ 624%{meabi: %{!mcall-*: -mcall-sysv }} \ 625%{!meabi: %{!mno-eabi: \ 626 %{mrelocatable: -meabi } \ 627 %{mcall-freebsd: -mno-eabi } \ 628 %{mcall-i960-old: -meabi } \ 629 %{mcall-linux: -mno-eabi } \ 630 %{mcall-gnu: -mno-eabi } \ 631 %{mcall-netbsd: -mno-eabi } \ 632 %{mcall-openbsd: -mno-eabi }}} \ 633%{msdata: -msdata=default} \ 634%{mno-sdata: -msdata=none} \ 635%{!mbss-plt: %{!msecure-plt: %(cc1_secure_plt_default)}} \ 636%{profile: -p}" 637 638/* Don't put -Y P,<path> for cross compilers. */ 639#ifndef CROSS_DIRECTORY_STRUCTURE 640#define LINK_PATH_SPEC "\ 641%{!R*:%{L*:-R %*}} \ 642%{!nostdlib: %{!YP,*: \ 643 %{compat-bsd: \ 644 %{p:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \ 645 %{!p:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}} \ 646 %{!R*: %{!L*: -R /usr/ucblib}} \ 647 %{!compat-bsd: \ 648 %{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \ 649 %{!p:-Y P,/usr/ccs/lib:/usr/lib}}}}" 650 651#else 652#define LINK_PATH_SPEC "" 653#endif 654 655/* Default starting address if specified. */ 656#define LINK_START_SPEC "\ 657%{mads : %(link_start_ads) ; \ 658 myellowknife : %(link_start_yellowknife) ; \ 659 mmvme : %(link_start_mvme) ; \ 660 msim : %(link_start_sim) ; \ 661 mwindiss : %(link_start_windiss) ; \ 662 mcall-freebsd: %(link_start_freebsd) ; \ 663 mcall-linux : %(link_start_linux) ; \ 664 mcall-gnu : %(link_start_gnu) ; \ 665 mcall-netbsd : %(link_start_netbsd) ; \ 666 mcall-openbsd: %(link_start_openbsd) ; \ 667 : %(link_start_default) }" 668 669#define LINK_START_DEFAULT_SPEC "" 670 671/* Override svr4.h definition. */ 672#undef LINK_SPEC 673#define LINK_SPEC "\ 674%{h*} %{v:-V} %{!msdata=none:%{G*}} %{msdata=none:-G0} \ 675%{YP,*} %{R*} \ 676%{Qy:} %{!Qn:-Qy} \ 677%(link_shlib) \ 678%{!Wl,-T*: %{!T*: %(link_start) }} \ 679%(link_target) \ 680%(link_os)" 681 682/* For now, turn off shared libraries by default. */ 683#ifndef SHARED_LIB_SUPPORT 684#define NO_SHARED_LIB_SUPPORT 685#endif 686 687#ifndef NO_SHARED_LIB_SUPPORT 688/* Shared libraries are default. */ 689#define LINK_SHLIB_SPEC "\ 690%{!static: %(link_path) %{!R*:%{L*:-R %*}}} \ 691%{mshlib: } \ 692%{static:-dn -Bstatic} \ 693%{shared:-G -dy -z text} \ 694%{symbolic:-Bsymbolic -G -dy -z text}" 695 696#else 697/* Shared libraries are not default. */ 698#define LINK_SHLIB_SPEC "\ 699%{mshlib: %(link_path) } \ 700%{!mshlib: %{!shared: %{!symbolic: -dn -Bstatic}}} \ 701%{static: } \ 702%{shared:-G -dy -z text %(link_path) } \ 703%{symbolic:-Bsymbolic -G -dy -z text %(link_path) }" 704#endif 705 706/* Override the default target of the linker. */ 707#define LINK_TARGET_SPEC "\ 708%{mlittle: --oformat elf32-powerpcle } %{mlittle-endian: --oformat elf32-powerpcle } \ 709%{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \ 710 %{mcall-i960-old: --oformat elf32-powerpcle} \ 711 }}}}" 712 713/* Any specific OS flags. */ 714#define LINK_OS_SPEC "\ 715%{mads : %(link_os_ads) ; \ 716 myellowknife : %(link_os_yellowknife) ; \ 717 mmvme : %(link_os_mvme) ; \ 718 msim : %(link_os_sim) ; \ 719 mwindiss : %(link_os_windiss) ; \ 720 mcall-freebsd: %(link_os_freebsd) ; \ 721 mcall-linux : %(link_os_linux) ; \ 722 mcall-gnu : %(link_os_gnu) ; \ 723 mcall-netbsd : %(link_os_netbsd) ; \ 724 mcall-openbsd: %(link_os_openbsd) ; \ 725 : %(link_os_default) }" 726 727#define LINK_OS_DEFAULT_SPEC "" 728 729/* Override rs6000.h definition. */ 730#undef CPP_SPEC 731#define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \ 732%{mads : %(cpp_os_ads) ; \ 733 myellowknife : %(cpp_os_yellowknife) ; \ 734 mmvme : %(cpp_os_mvme) ; \ 735 msim : %(cpp_os_sim) ; \ 736 mwindiss : %(cpp_os_windiss) ; \ 737 mcall-freebsd: %(cpp_os_freebsd) ; \ 738 mcall-linux : %(cpp_os_linux) ; \ 739 mcall-gnu : %(cpp_os_gnu) ; \ 740 mcall-netbsd : %(cpp_os_netbsd) ; \ 741 mcall-openbsd: %(cpp_os_openbsd) ; \ 742 : %(cpp_os_default) }" 743 744#define CPP_OS_DEFAULT_SPEC "" 745 746/* Override svr4.h definition. */ 747#undef STARTFILE_SPEC 748#define STARTFILE_SPEC "\ 749%{mads : %(startfile_ads) ; \ 750 myellowknife : %(startfile_yellowknife) ; \ 751 mmvme : %(startfile_mvme) ; \ 752 msim : %(startfile_sim) ; \ 753 mwindiss : %(startfile_windiss) ; \ 754 mcall-freebsd: %(startfile_freebsd) ; \ 755 mcall-linux : %(startfile_linux) ; \ 756 mcall-gnu : %(startfile_gnu) ; \ 757 mcall-netbsd : %(startfile_netbsd) ; \ 758 mcall-openbsd: %(startfile_openbsd) ; \ 759 : %(startfile_default) }" 760 761#define STARTFILE_DEFAULT_SPEC "" 762 763/* Override svr4.h definition. */ 764#undef LIB_SPEC 765#define LIB_SPEC "\ 766%{mads : %(lib_ads) ; \ 767 myellowknife : %(lib_yellowknife) ; \ 768 mmvme : %(lib_mvme) ; \ 769 msim : %(lib_sim) ; \ 770 mwindiss : %(lib_windiss) ; \ 771 mcall-freebsd: %(lib_freebsd) ; \ 772 mcall-linux : %(lib_linux) ; \ 773 mcall-gnu : %(lib_gnu) ; \ 774 mcall-netbsd : %(lib_netbsd) ; \ 775 mcall-openbsd: %(lib_openbsd) ; \ 776 : %(lib_default) }" 777 778#define LIB_DEFAULT_SPEC "" 779 780/* Override svr4.h definition. */ 781#undef ENDFILE_SPEC 782#define ENDFILE_SPEC "\ 783%{mads : crtsavres.o%s %(endfile_ads) ; \ 784 myellowknife : crtsavres.o%s %(endfile_yellowknife) ; \ 785 mmvme : crtsavres.o%s %(endfile_mvme) ; \ 786 msim : crtsavres.o%s %(endfile_sim) ; \ 787 mwindiss : %(endfile_windiss) ; \ 788 mcall-freebsd: crtsavres.o%s %(endfile_freebsd) ; \ 789 mcall-linux : crtsavres.o%s %(endfile_linux) ; \ 790 mcall-gnu : crtsavres.o%s %(endfile_gnu) ; \ 791 mcall-netbsd : crtsavres.o%s %(endfile_netbsd) ; \ 792 mcall-openbsd: crtsavres.o%s %(endfile_openbsd) ; \ 793 : %(crtsavres_default) %(endfile_default) }" 794 795#define CRTSAVRES_DEFAULT_SPEC "crtsavres.o%s" 796 797#define ENDFILE_DEFAULT_SPEC "" 798 799/* Motorola ADS support. */ 800#define LIB_ADS_SPEC "--start-group -lads -lc --end-group" 801 802#define STARTFILE_ADS_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s" 803 804#define ENDFILE_ADS_SPEC "crtend.o%s ecrtn.o%s" 805 806#define LINK_START_ADS_SPEC "-T ads.ld%s" 807 808#define LINK_OS_ADS_SPEC "" 809 810#define CPP_OS_ADS_SPEC "" 811 812/* Motorola Yellowknife support. */ 813#define LIB_YELLOWKNIFE_SPEC "--start-group -lyk -lc --end-group" 814 815#define STARTFILE_YELLOWKNIFE_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s" 816 817#define ENDFILE_YELLOWKNIFE_SPEC "crtend.o%s ecrtn.o%s" 818 819#define LINK_START_YELLOWKNIFE_SPEC "-T yellowknife.ld%s" 820 821#define LINK_OS_YELLOWKNIFE_SPEC "" 822 823#define CPP_OS_YELLOWKNIFE_SPEC "" 824 825/* Motorola MVME support. */ 826#define LIB_MVME_SPEC "--start-group -lmvme -lc --end-group" 827 828#define STARTFILE_MVME_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s" 829 830#define ENDFILE_MVME_SPEC "crtend.o%s ecrtn.o%s" 831 832#define LINK_START_MVME_SPEC "-Ttext 0x40000" 833 834#define LINK_OS_MVME_SPEC "" 835 836#define CPP_OS_MVME_SPEC "" 837 838/* PowerPC simulator based on netbsd system calls support. */ 839#define LIB_SIM_SPEC "--start-group -lsim -lc --end-group" 840 841#define STARTFILE_SIM_SPEC "ecrti.o%s sim-crt0.o%s crtbegin.o%s" 842 843#define ENDFILE_SIM_SPEC "crtend.o%s ecrtn.o%s" 844 845#define LINK_START_SIM_SPEC "" 846 847#define LINK_OS_SIM_SPEC "-m elf32ppcsim" 848 849#define CPP_OS_SIM_SPEC "" 850 851/* FreeBSD support. */ 852 853#define CPP_OS_FREEBSD_SPEC "\ 854 -D__PPC__ -D__ppc__ -D__PowerPC__ -D__powerpc__ \ 855 -Acpu=powerpc -Amachine=powerpc" 856 857#define STARTFILE_FREEBSD_SPEC FBSD_STARTFILE_SPEC 858#define ENDFILE_FREEBSD_SPEC FBSD_ENDFILE_SPEC 859#define LIB_FREEBSD_SPEC FBSD_LIB_SPEC 860#define LINK_START_FREEBSD_SPEC "" 861 862#define LINK_OS_FREEBSD_SPEC "\ 863 %{p:%nconsider using `-pg' instead of `-p' with gprof(1)} \ 864 %{v:-V} \ 865 %{assert*} %{R*} %{rpath*} %{defsym*} \ 866 %{shared:-Bshareable %{h*} %{soname*}} \ 867 %{!shared: \ 868 %{!static: \ 869 %{rdynamic: -export-dynamic} \ 870 %{!dynamic-linker:-dynamic-linker %(fbsd_dynamic_linker) }} \ 871 %{static:-Bstatic}} \ 872 %{symbolic:-Bsymbolic}" 873 874/* GNU/Linux support. */ 875#define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \ 876%{!mnewlib: %{pthread:-lpthread} %{shared:-lc} \ 877%{!shared: %{profile:-lc_p} %{!profile:-lc}}}" 878 879#ifdef HAVE_LD_PIE 880#define STARTFILE_LINUX_SPEC "\ 881%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \ 882%{mnewlib:ecrti.o%s;:crti.o%s} \ 883%{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}" 884#else 885#define STARTFILE_LINUX_SPEC "\ 886%{!shared: %{pg|p|profile:gcrt1.o%s;:crt1.o%s}} \ 887%{mnewlib:ecrti.o%s;:crti.o%s} \ 888%{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}" 889#endif 890 891#define ENDFILE_LINUX_SPEC "\ 892%{shared|pie:crtendS.o%s;:crtend.o%s} \ 893%{mnewlib:ecrtn.o%s;:crtn.o%s}" 894 895#define LINK_START_LINUX_SPEC "" 896 897#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1" 898#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0" 899#if UCLIBC_DEFAULT 900#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:%{muclibc:%e-mglibc and -muclibc used together}" G ";:" U "}" 901#else 902#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:%{mglibc:%e-mglibc and -muclibc used together}" U ";:" G "}" 903#endif 904#define LINUX_DYNAMIC_LINKER \ 905 CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER) 906 907#define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \ 908 %{rdynamic:-export-dynamic} \ 909 %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "}}}" 910 911#if defined(HAVE_LD_EH_FRAME_HDR) 912# define LINK_EH_SPEC "%{!static:--eh-frame-hdr} " 913#endif 914 915#define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \ 916%{!undef: \ 917 %{!ansi: \ 918 %{!std=*:-Dunix -D__unix -Dlinux -D__linux} \ 919 %{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}} \ 920-Asystem=linux -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}" 921 922/* GNU/Hurd support. */ 923#define LIB_GNU_SPEC "%{mnewlib: --start-group -lgnu -lc --end-group } \ 924%{!mnewlib: %{shared:-lc} %{!shared: %{pthread:-lpthread } \ 925%{profile:-lc_p} %{!profile:-lc}}}" 926 927#define STARTFILE_GNU_SPEC "\ 928%{!shared: %{!static: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}} \ 929%{static: %{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}}} \ 930%{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \ 931%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}" 932 933#define ENDFILE_GNU_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \ 934%{mnewlib: ecrtn.o%s} %{!mnewlib: crtn.o%s}" 935 936#define LINK_START_GNU_SPEC "" 937 938#define LINK_OS_GNU_SPEC "-m elf32ppclinux %{!shared: %{!static: \ 939 %{rdynamic:-export-dynamic} \ 940 %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}" 941 942#define CPP_OS_GNU_SPEC "-D__unix__ -D__gnu_hurd__ -D__GNU__ \ 943%{!undef: \ 944 %{!ansi: -Dunix -D__unix}} \ 945-Asystem=gnu -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}" 946 947/* NetBSD support. */ 948#define LIB_NETBSD_SPEC "\ 949%{profile:-lgmon -lc_p} %{!profile:-lc}" 950 951#define STARTFILE_NETBSD_SPEC "\ 952ncrti.o%s crt0.o%s \ 953%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}" 954 955#define ENDFILE_NETBSD_SPEC "\ 956%{!shared:crtend.o%s} %{shared:crtendS.o%s} \ 957ncrtn.o%s" 958 959#define LINK_START_NETBSD_SPEC "\ 960" 961 962#define LINK_OS_NETBSD_SPEC "\ 963%{!shared: %{!static: \ 964 %{rdynamic:-export-dynamic} \ 965 %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}}}" 966 967#define CPP_OS_NETBSD_SPEC "\ 968-D__powerpc__ -D__NetBSD__ -D__KPRINTF_ATTRIBUTE__" 969 970/* OpenBSD support. */ 971#ifndef LIB_OPENBSD_SPEC 972#define LIB_OPENBSD_SPEC "%{!shared:%{pthread:-lpthread%{p:_p}%{!p:%{pg:_p}}}} %{!shared:-lc%{p:_p}%{!p:%{pg:_p}}}" 973#endif 974 975#ifndef STARTFILE_OPENBSD_SPEC 976#define STARTFILE_OPENBSD_SPEC "\ 977%{!shared: %{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}}} \ 978%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}" 979#endif 980 981#ifndef ENDFILE_OPENBSD_SPEC 982#define ENDFILE_OPENBSD_SPEC "\ 983%{!shared:crtend.o%s} %{shared:crtendS.o%s}" 984#endif 985 986#ifndef LINK_START_OPENBSD_SPEC 987#define LINK_START_OPENBSD_SPEC "-Ttext 0x400074" 988#endif 989 990#ifndef LINK_OS_OPENBSD_SPEC 991#define LINK_OS_OPENBSD_SPEC "" 992#endif 993 994#ifndef CPP_OS_OPENBSD_SPEC 995#define CPP_OS_OPENBSD_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_POSIX_THREADS}" 996#endif 997 998/* WindISS support. */ 999 1000#define LIB_WINDISS_SPEC "--start-group -li -lcfp -lwindiss -lram -limpl -limpfp --end-group" 1001 1002#define CPP_OS_WINDISS_SPEC "\ 1003-D__rtasim \ 1004-D__EABI__ \ 1005-D__ppc \ 1006%{!msoft-float: -D__hardfp} \ 1007" 1008 1009#define STARTFILE_WINDISS_SPEC "crt0.o%s crtbegin.o%s" 1010 1011#define ENDFILE_WINDISS_SPEC "crtend.o%s" 1012 1013#define LINK_START_WINDISS_SPEC "" 1014 1015#define LINK_OS_WINDISS_SPEC "" 1016 1017/* Define any extra SPECS that the compiler needs to generate. */ 1018/* Override rs6000.h definition. */ 1019#undef SUBTARGET_EXTRA_SPECS 1020#define SUBTARGET_EXTRA_SPECS \ 1021 { "crtsavres_default", CRTSAVRES_DEFAULT_SPEC }, \ 1022 { "lib_ads", LIB_ADS_SPEC }, \ 1023 { "lib_yellowknife", LIB_YELLOWKNIFE_SPEC }, \ 1024 { "lib_mvme", LIB_MVME_SPEC }, \ 1025 { "lib_sim", LIB_SIM_SPEC }, \ 1026 { "lib_freebsd", LIB_FREEBSD_SPEC }, \ 1027 { "lib_gnu", LIB_GNU_SPEC }, \ 1028 { "lib_linux", LIB_LINUX_SPEC }, \ 1029 { "lib_netbsd", LIB_NETBSD_SPEC }, \ 1030 { "lib_openbsd", LIB_OPENBSD_SPEC }, \ 1031 { "lib_windiss", LIB_WINDISS_SPEC }, \ 1032 { "lib_default", LIB_DEFAULT_SPEC }, \ 1033 { "startfile_ads", STARTFILE_ADS_SPEC }, \ 1034 { "startfile_yellowknife", STARTFILE_YELLOWKNIFE_SPEC }, \ 1035 { "startfile_mvme", STARTFILE_MVME_SPEC }, \ 1036 { "startfile_sim", STARTFILE_SIM_SPEC }, \ 1037 { "startfile_freebsd", STARTFILE_FREEBSD_SPEC }, \ 1038 { "startfile_gnu", STARTFILE_GNU_SPEC }, \ 1039 { "startfile_linux", STARTFILE_LINUX_SPEC }, \ 1040 { "startfile_netbsd", STARTFILE_NETBSD_SPEC }, \ 1041 { "startfile_openbsd", STARTFILE_OPENBSD_SPEC }, \ 1042 { "startfile_windiss", STARTFILE_WINDISS_SPEC }, \ 1043 { "startfile_default", STARTFILE_DEFAULT_SPEC }, \ 1044 { "endfile_ads", ENDFILE_ADS_SPEC }, \ 1045 { "endfile_yellowknife", ENDFILE_YELLOWKNIFE_SPEC }, \ 1046 { "endfile_mvme", ENDFILE_MVME_SPEC }, \ 1047 { "endfile_sim", ENDFILE_SIM_SPEC }, \ 1048 { "endfile_freebsd", ENDFILE_FREEBSD_SPEC }, \ 1049 { "endfile_gnu", ENDFILE_GNU_SPEC }, \ 1050 { "endfile_linux", ENDFILE_LINUX_SPEC }, \ 1051 { "endfile_netbsd", ENDFILE_NETBSD_SPEC }, \ 1052 { "endfile_openbsd", ENDFILE_OPENBSD_SPEC }, \ 1053 { "endfile_windiss", ENDFILE_WINDISS_SPEC }, \ 1054 { "endfile_default", ENDFILE_DEFAULT_SPEC }, \ 1055 { "link_path", LINK_PATH_SPEC }, \ 1056 { "link_shlib", LINK_SHLIB_SPEC }, \ 1057 { "link_target", LINK_TARGET_SPEC }, \ 1058 { "link_start", LINK_START_SPEC }, \ 1059 { "link_start_ads", LINK_START_ADS_SPEC }, \ 1060 { "link_start_yellowknife", LINK_START_YELLOWKNIFE_SPEC }, \ 1061 { "link_start_mvme", LINK_START_MVME_SPEC }, \ 1062 { "link_start_sim", LINK_START_SIM_SPEC }, \ 1063 { "link_start_freebsd", LINK_START_FREEBSD_SPEC }, \ 1064 { "link_start_gnu", LINK_START_GNU_SPEC }, \ 1065 { "link_start_linux", LINK_START_LINUX_SPEC }, \ 1066 { "link_start_netbsd", LINK_START_NETBSD_SPEC }, \ 1067 { "link_start_openbsd", LINK_START_OPENBSD_SPEC }, \ 1068 { "link_start_windiss", LINK_START_WINDISS_SPEC }, \ 1069 { "link_start_default", LINK_START_DEFAULT_SPEC }, \ 1070 { "link_os", LINK_OS_SPEC }, \ 1071 { "link_os_ads", LINK_OS_ADS_SPEC }, \ 1072 { "link_os_yellowknife", LINK_OS_YELLOWKNIFE_SPEC }, \ 1073 { "link_os_mvme", LINK_OS_MVME_SPEC }, \ 1074 { "link_os_sim", LINK_OS_SIM_SPEC }, \ 1075 { "link_os_freebsd", LINK_OS_FREEBSD_SPEC }, \ 1076 { "link_os_linux", LINK_OS_LINUX_SPEC }, \ 1077 { "link_os_gnu", LINK_OS_GNU_SPEC }, \ 1078 { "link_os_netbsd", LINK_OS_NETBSD_SPEC }, \ 1079 { "link_os_openbsd", LINK_OS_OPENBSD_SPEC }, \ 1080 { "link_os_windiss", LINK_OS_WINDISS_SPEC }, \ 1081 { "link_os_default", LINK_OS_DEFAULT_SPEC }, \ 1082 { "cc1_endian_big", CC1_ENDIAN_BIG_SPEC }, \ 1083 { "cc1_endian_little", CC1_ENDIAN_LITTLE_SPEC }, \ 1084 { "cc1_endian_default", CC1_ENDIAN_DEFAULT_SPEC }, \ 1085 { "cc1_secure_plt_default", CC1_SECURE_PLT_DEFAULT_SPEC }, \ 1086 { "cpp_os_ads", CPP_OS_ADS_SPEC }, \ 1087 { "cpp_os_yellowknife", CPP_OS_YELLOWKNIFE_SPEC }, \ 1088 { "cpp_os_mvme", CPP_OS_MVME_SPEC }, \ 1089 { "cpp_os_sim", CPP_OS_SIM_SPEC }, \ 1090 { "cpp_os_freebsd", CPP_OS_FREEBSD_SPEC }, \ 1091 { "cpp_os_gnu", CPP_OS_GNU_SPEC }, \ 1092 { "cpp_os_linux", CPP_OS_LINUX_SPEC }, \ 1093 { "cpp_os_netbsd", CPP_OS_NETBSD_SPEC }, \ 1094 { "cpp_os_openbsd", CPP_OS_OPENBSD_SPEC }, \ 1095 { "cpp_os_windiss", CPP_OS_WINDISS_SPEC }, \ 1096 { "cpp_os_default", CPP_OS_DEFAULT_SPEC }, \ 1097 { "fbsd_dynamic_linker", FBSD_DYNAMIC_LINKER }, \ 1098 SUBSUBTARGET_EXTRA_SPECS 1099 1100#define SUBSUBTARGET_EXTRA_SPECS 1101 1102/* Define this macro as a C expression for the initializer of an 1103 array of string to tell the driver program which options are 1104 defaults for this target and thus do not need to be handled 1105 specially when using `MULTILIB_OPTIONS'. 1106 1107 Do not define this macro if `MULTILIB_OPTIONS' is not defined in 1108 the target makefile fragment or if none of the options listed in 1109 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */ 1110 1111#define MULTILIB_DEFAULTS { "mbig", "mcall-sysv" } 1112 1113/* Define this macro if the code for function profiling should come 1114 before the function prologue. Normally, the profiling code comes 1115 after. */ 1116#define PROFILE_BEFORE_PROLOGUE 1 1117 1118/* Function name to call to do profiling. */ 1119#define RS6000_MCOUNT "_mcount" 1120 1121/* Define this macro (to a value of 1) if you want to support the 1122 Win32 style pragmas #pragma pack(push,<n>)' and #pragma 1123 pack(pop)'. The pack(push,<n>) pragma specifies the maximum 1124 alignment (in bytes) of fields within a structure, in much the 1125 same way as the __aligned__' and __packed__' __attribute__'s 1126 do. A pack value of zero resets the behavior to the default. 1127 Successive invocations of this pragma cause the previous values to 1128 be stacked, so that invocations of #pragma pack(pop)' will return 1129 to the previous value. */ 1130 1131#define HANDLE_PRAGMA_PACK_PUSH_POP 1 1132 1133/* Select a format to encode pointers in exception handling data. CODE 1134 is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is 1135 true if the symbol may be affected by dynamic relocations. */ 1136#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ 1137 ((flag_pic || TARGET_RELOCATABLE) \ 1138 ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4) \ 1139 : DW_EH_PE_absptr) 1140 1141#define DOUBLE_INT_ASM_OP "\t.quad\t" 1142 1143/* Generate entries in .fixup for relocatable addresses. */ 1144#define RELOCATABLE_NEEDS_FIXUP 1 1145 1146/* This target uses the sysv4.opt file. */ 1147#define TARGET_USES_SYSV4_OPT 1 1148