gcc/config/mips/iris6.h

   1 /* Definitions of target machine for GNU compiler.  IRIX version 6.
   2    Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003, 2004
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GCC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 /* No more special IRIX 5 handling.  */
  23 #undef TARGET_IRIX5
  24 #define TARGET_IRIX5 0
  25
  26 /* Default to -mabi=n32 and -mips3.  */
  27 #undef MULTILIB_DEFAULTS
  28 #define MULTILIB_DEFAULTS { "mabi=n32" }
  29
  30 /* The IRIX 6 O32 assembler cannot calculate label differences, while both
  31    the N32/N64 assembler and gas can.  Override setting in iris5.h file.  */
  32 #undef DWARF2_UNWIND_INFO
  33 #define DWARF2_UNWIND_INFO !TARGET_SGI_O32_AS
  34
  35 /* The IRIX 6 assembler will sometimes assign labels to the wrong
  36    section unless the labels are within .ent/.end blocks.  Therefore,
  37    we avoid creating such labels.  */
  38 #define DWARF2_GENERATE_TEXT_SECTION_LABEL 0
  39
  40 /* wchar_t is defined differently with and without -mabi=64.  */
  41
  42 #undef WCHAR_TYPE
  43 #define WCHAR_TYPE (Pmode == DImode ? "int" : "long int")
  44
  45 #undef WCHAR_TYPE_SIZE
  46 #define WCHAR_TYPE_SIZE 32
  47
  48 /* Same for wint_t.  */
  49
  50 #undef WINT_TYPE
  51 #define WINT_TYPE (Pmode == DImode ? "int" : "long int")
  52
  53 #undef WINT_TYPE_SIZE
  54 #define WINT_TYPE_SIZE 32
  55
  56 /* For IRIX 6, -mabi=64 implies TARGET_LONG64.  */
  57 /* This is handled in override_options.  */
  58
  59 /* Default to the mips2 ISA for the O32 ABI.  */
  60 #undef SUBTARGET_CC1_SPEC
  61 #define SUBTARGET_CC1_SPEC "%{mabi=32: %{!mips*: -mips2}}"
  62
  63 /* #line directives let the O32 assembler create object files that cause the
  64    O32 linker to crash.  */
  65 #undef SUBTARGET_CPP_SPEC
  66 #define SUBTARGET_CPP_SPEC "%{mabi=32: %{.S:-P}}"
  67
  68 /* We must pass -D_LONGLONG always, even when -ansi is used, because IRIX 6
  69    system header files require it.  This is OK, because gcc never warns
  70    when long long is used in system header files.  Alternatively, we can
  71    add support for the SGI builtin type __long_long.  */
  72
  73 /* The GNU C++ standard library requires that __EXTENSIONS__ and
  74    _SGI_SOURCE be defined on at least IRIX 6.2 and probably all IRIX 6
  75    prior to 6.5.  They normally get defined if !ansi, for g++ we want
  76    them regardless.  We don't need this on IRIX 6.5 itself, but it
  77    shouldn't hurt other than the namespace pollution.  */
  78
  79 /* Undefine because this includes iris5.h.  */
  80 #undef  TARGET_OS_CPP_BUILTINS
  81 #define TARGET_OS_CPP_BUILTINS()                        \
  82     do {                                                \
  83         builtin_define_std ("host_mips");               \
  84         builtin_define ("_LONGLONG");                   \
  85         builtin_define ("_MODERN_C");                   \
  86         builtin_define ("_SVR4_SOURCE");                \
  87         builtin_define_std ("SYSTYPE_SVR4");            \
  88         builtin_define ("__DSO__");                     \
  89         builtin_define_std ("unix");                    \
  90         builtin_define_std ("sgi");                     \
  91         builtin_assert ("system=svr4");                 \
  92         builtin_assert ("system=unix");                 \
  93         builtin_assert ("machine=sgi");                 \
  94                                                         \
  95      if (mips_abi == ABI_32)                            \
  96       {                                                 \
  97         builtin_define ("_ABIO32=1");                   \
  98         builtin_define ("_MIPS_SIM=_ABIO32");           \
  99         builtin_define ("_MIPS_SZLONG=32");             \
 100         builtin_define ("_MIPS_SZPTR=32");              \
 101       }                                                 \
 102      else if (mips_abi == ABI_64)                       \
 103       {                                                 \
 104         builtin_define ("_ABI64=3");                    \
 105         builtin_define ("_MIPS_SIM=_ABI64");            \
 106         builtin_define ("_MIPS_SZLONG=64");             \
 107         builtin_define ("_MIPS_SZPTR=64");              \
 108       }                                                 \
 109      else                                               \
 110       {                                                 \
 111         builtin_define ("_ABIN32=2");                   \
 112         builtin_define ("_MIPS_SIM=_ABIN32");           \
 113         builtin_define ("_MIPS_SZLONG=32");             \
 114         builtin_define ("_MIPS_SZPTR=32");              \
 115       }                                                 \
 116                                                         \
 117      if (!TARGET_FLOAT64)                               \
 118         builtin_define ("_MIPS_FPSET=16");              \
 119      else                                               \
 120         builtin_define ("_MIPS_FPSET=32");              \
 121                                                         \
 122      if (!TARGET_INT64)                                 \
 123         builtin_define ("_MIPS_SZINT=32");              \
 124      else                                               \
 125         builtin_define ("_MIPS_SZINT=64");              \
 126                                                         \
 127      if (!ISA_MIPS1 && !ISA_MIPS2)                      \
 128         builtin_define ("_COMPILER_VERSION=601");       \
 129                                                         \
 130      /* IRIX 6.5.18 and above provide many ISO C99      \
 131         features protected by the __c99 macro.          \
 132         libstdc++ v3 needs them as well.  */            \
 133      if ((!c_dialect_cxx () && flag_isoc99)             \
 134          || c_dialect_cxx ())                           \
 135         builtin_define ("__c99");                       \
 136                                                         \
 137      if (c_dialect_cxx ())                              \
 138       {                                                 \
 139         builtin_define ("__EXTENSIONS__");              \
 140         builtin_define ("_SGI_SOURCE");                 \
 141       }                                                 \
 142                                                         \
 143      if (!flag_iso)                                     \
 144        {                                                \
 145          builtin_define ("__EXTENSIONS__");             \
 146          builtin_define ("_SGI_SOURCE");                \
 147        }                                                \
 148 } while (0)
 149
 150 /* IRIX 6 uses DWARF-2.  */
 151 #define DWARF2_DEBUGGING_INFO 1
 152 #define MIPS_DEBUGGING_INFO 1
 153 #undef PREFERRED_DEBUGGING_TYPE
 154 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
 155
 156 /* Force the generation of dwarf .debug_frame sections even if not
 157    compiling -g.  This guarantees that we can unwind the stack.  */
 158 #define DWARF2_FRAME_INFO !TARGET_SGI_O32_AS
 159
 160 /* The size in bytes of a DWARF field indicating an offset or length
 161    relative to a debug info section, specified to be 4 bytes in the DWARF-2
 162    specification.  The SGI/MIPS ABI defines it to be the same as PTR_SIZE.  */
 163 #define DWARF_OFFSET_SIZE PTR_SIZE
 164
 165 /* The size in bytes of the initial length field in a debug info
 166    section.  The DWARF 3 (draft) specification defines this to be
 167    either 4 or 12 (with a 4-byte "escape" word when it's 12), but the
 168    SGI/MIPS ABI predates this standard and defines it to be the same
 169    as DWARF_OFFSET_SIZE.  */
 170 #define DWARF_INITIAL_LENGTH_SIZE DWARF_OFFSET_SIZE
 171
 172 /* There is no GNU as port for IRIX 6 yet, so we set MD_EXEC_PREFIX so that
 173    gcc will automatically find SGI as instead of searching the user's path.
 174    The latter can fail when building a cross compiler if the user has . in
 175    the path before /usr/bin, since then gcc will find and try to use the link
 176    to the cross assembler which can't possibly work.  */
 177
 178 #undef MD_EXEC_PREFIX
 179 #define MD_EXEC_PREFIX "/usr/bin/"
 180
 181 /* We have no need for MD_STARTFILE_PREFIX.  */
 182 #undef MD_STARTFILE_PREFIX
 183
 184 #undef MACHINE_TYPE
 185 #define MACHINE_TYPE "SGI running IRIX 6.x"
 186
 187 /* Stuff we need for IRIX 6 that isn't in IRIX 5.  */
 188
 189 /* The SGI assembler doesn't like labels before the .ent, so we must output
 190    the .ent and function name here, which is the normal place for it.  */
 191
 192 #undef ASM_DECLARE_FUNCTION_NAME
 193 #define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL)                   \
 194   do {                                                                  \
 195     if (mips_abi != ABI_32)                                             \
 196       {                                                                 \
 197         fputs ("\t.ent\t", STREAM);                                     \
 198         assemble_name (STREAM, NAME);                                   \
 199         fputs ("\n", STREAM);                                           \
 200         assemble_name (STREAM, NAME);                                   \
 201         fputs (":\n", STREAM);                                          \
 202       }                                                                 \
 203   } while (0)
 204
 205 /* Likewise, the SGI assembler doesn't like labels after the .end, so we
 206    must output the .end here.  */
 207 #undef ASM_DECLARE_FUNCTION_SIZE
 208 #define ASM_DECLARE_FUNCTION_SIZE(STREAM, NAME, DECL)                   \
 209   do {                                                                  \
 210     if (mips_abi == ABI_32)                                             \
 211       {                                                                 \
 212         tree name_tree = get_identifier (NAME);                         \
 213         TREE_ASM_WRITTEN (name_tree) = 1;                               \
 214       }                                                                 \
 215     else                                                                \
 216       {                                                                 \
 217         fputs ("\t.end\t", STREAM);                                     \
 218         assemble_name (STREAM, NAME);                                   \
 219         fputs ("\n", STREAM);                                           \
 220       }                                                                 \
 221   } while (0)
 222
 223 /* Tell function_prologue in mips.c that we have already output the .ent/.end
 224    pseudo-ops.  */
 225 #undef FUNCTION_NAME_ALREADY_DECLARED
 226 #define FUNCTION_NAME_ALREADY_DECLARED (mips_abi != ABI_32)
 227
 228 #undef SET_ASM_OP       /* Has no equivalent.  See ASM_OUTPUT_DEF below.  */
 229
 230 #if 0
 231 /* This is *NOT* how to equate one symbol to another symbol.  The assembler
 232    '=' syntax just equates a name to a constant expression.
 233    See ASM_OUTPUT_WEAK_ALIAS.  */
 234
 235 #define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2)                              \
 236  do {   fprintf ((FILE), "\t");                                         \
 237         assemble_name (FILE, LABEL1);                                   \
 238         fprintf (FILE, " = ");                                          \
 239         assemble_name (FILE, LABEL2);                                   \
 240         fprintf (FILE, "\n");                                           \
 241   } while (0)
 242 #endif
 243
 244 /* Define the strings used for the special svr4 .type and .size directives.  */
 245
 246 #define TYPE_ASM_OP     "\t.type\t"
 247 #define SIZE_ASM_OP     "\t.size\t"
 248
 249 /* IRIX assembler does not support the init_priority C++ attribute.  */
 250 #undef SUPPORTS_INIT_PRIORITY
 251 #define SUPPORTS_INIT_PRIORITY 0
 252
 253 /* A linker error can empirically be avoided by removing duplicate
 254    library search directories.  */
 255 #define LINK_ELIMINATE_DUPLICATE_LDIRECTORIES 1
 256
 257 #define POPSECTION_ASM_OP       "\t.popsection"
 258
 259 /* ??? If no mabi=X option give, but a mipsX option is, then should depend
 260    on the mipsX option.  */
 261 /* If no mips[3,4] option given, give the appropriate default for mabi=X */
 262 #undef SUBTARGET_ASM_SPEC
 263 #define SUBTARGET_ASM_SPEC "%{!mabi*:-n32} %{mabi=32:-32} %{!mips*: %{!mabi*:-mips3} %{mabi=32:-mips2} %{mabi=n32|mabi=64:-mips3}}"
 264
 265 /* Must pass -g0 to the assembler, otherwise it may overwrite our
 266    debug info with its own debug info.  */
 267 /* Must pass -show instead of -v.  */
 268 /* Must pass -G 0 to the assembler, otherwise we may get warnings about
 269    GOT overflow.  */
 270 /* Must pass -w to the assembler to quiet warnings about .ent/.end for dwarf2.  */
 271 #if ((TARGET_CPU_DEFAULT | TARGET_DEFAULT) & MASK_GAS) == 0
 272 /* We have a separate file for gas.  */
 273 #undef SUBTARGET_MIPS_AS_ASM_SPEC
 274 #define SUBTARGET_MIPS_AS_ASM_SPEC "%{v:-show} -G 0 -w"
 275
 276 #undef SUBTARGET_ASM_DEBUGGING_SPEC
 277 #define SUBTARGET_ASM_DEBUGGING_SPEC "-g0"
 278
 279 /* The MIPS assembler occasionally misoptimizes.  Since GCC should be
 280    doing scheduling anyhow, just turn off optimization in the assembler.  */
 281 #undef SUBTARGET_ASM_OPTIMIZING_SPEC
 282 #define SUBTARGET_ASM_OPTIMIZING_SPEC "-O0"
 283 #endif
 284
 285 /* The assembler now accepts .section pseudo-ops, but it does not allow
 286    one to change the section in the middle of a function, so we can't use
 287    the INIT_SECTION_ASM_OP code in crtstuff.  But we can build up the ctor
 288    and dtor lists this way, so we use -init and -fini to invoke the
 289    do_global_* functions instead of running collect2.  */
 290
 291 #undef BSS_SECTION_ASM_OP
 292 #define BSS_SECTION_ASM_OP_32   "\t.data"
 293 #define BSS_SECTION_ASM_OP_64   "\t.section\t.bss"
 294 #define BSS_SECTION_ASM_OP                      \
 295   (mips_abi != ABI_32 && mips_abi != ABI_O64    \
 296    ? BSS_SECTION_ASM_OP_64                      \
 297    : BSS_SECTION_ASM_OP_32)
 298
 299 #undef READONLY_DATA_SECTION_ASM_OP
 300 #define READONLY_DATA_SECTION_ASM_OP_32 "\t.rdata"
 301 #define READONLY_DATA_SECTION_ASM_OP_64 "\t.section\t.rodata"
 302 #define READONLY_DATA_SECTION_ASM_OP            \
 303   (mips_abi != ABI_32 && mips_abi != ABI_O64    \
 304    ? READONLY_DATA_SECTION_ASM_OP_64            \
 305    : READONLY_DATA_SECTION_ASM_OP_32)
 306
 307 /* The default definition in defaults.h cannot cope with the runtime-variable
 308    definition of DWARF2_UNWIND_INFO above, so define here explicitly.  */
 309 #define EH_FRAME_SECTION_NAME ".eh_frame"
 310
 311 /* MUST_USE_SJLJ_EXCEPTIONS has the same problem.  */
 312 #define MUST_USE_SJLJ_EXCEPTIONS (DWARF2_UNWIND_INFO == 0)
 313
 314 /* The native IRIX 6 O32 assembler doesn't support named sections, while
 315    the N32/N64 assembler does.  We need crt{begin, end}.o for the N32/N64
 316    ABIs, but there's no way to disable them for just one multilib.
 317    Therefore we provide dummy definitions to allow crtstuff.c to compile,
 318    but the resulting files are not used for the O32 ABI.  */
 319
 320 #if (defined _ABIO32 && _MIPS_SIM == _ABIO32) \
 321   && ((TARGET_CPU_DEFAULT | TARGET_DEFAULT) & MASK_GAS) == 0
 322
 323 /* Provide dummy definitions.  */
 324 #define CTORS_SECTION_ASM_OP ""
 325 #define DTORS_SECTION_ASM_OP ""
 326
 327 /* Undef so JCR_SECTION_NAME isn't defined and __JCR_{LIST, END}__ are not
 328    used.  */
 329 #undef TARGET_ASM_NAMED_SECTION
 330
 331 /* Undef so __EH_FRAME_BEGIN__/__FRAME_END__ are not used.  */
 332 #undef EH_FRAME_SECTION_NAME
 333
 334 #endif /* _MIPS_SIM == _ABIO32 && !GAS */
 335
 336 /* SGI assembler needs all sorts of extra help to do alignment properly.  */
 337 #undef ASM_OUTPUT_ALIGN
 338 #define ASM_OUTPUT_ALIGN irix_asm_output_align
 339
 340 #undef MAX_OFILE_ALIGNMENT
 341 #define MAX_OFILE_ALIGNMENT (32768*8)
 342
 343 /* ??? SGI assembler may core dump when compiling with -g.
 344    Sometimes as succeeds, but then we get a linker error. (cmds.c in 072.sc)
 345    Getting rid of .file solves both problems.  */
 346 #undef ASM_OUTPUT_FILENAME
 347 #define ASM_OUTPUT_FILENAME(STREAM, NUM_SOURCE_FILENAMES, NAME) \
 348 do                                                              \
 349   {                                                             \
 350     if (mips_abi == ABI_32)                                     \
 351       fprintf (STREAM, "\t.file\t%d ", NUM_SOURCE_FILENAMES);   \
 352     else                                                        \
 353       fprintf (STREAM, "\t#.file\t%d ", NUM_SOURCE_FILENAMES);  \
 354     output_quoted_string (STREAM, NAME);                        \
 355     fputs ("\n", STREAM);                                       \
 356   }                                                             \
 357 while (0)
 358
 359 /* ??? SGI assembler gives warning whenever .lcomm is used.  */
 360 #undef ASM_OUTPUT_ALIGNED_LOCAL
 361 #define ASM_OUTPUT_ALIGNED_LOCAL(STREAM, NAME, SIZE, ALIGN)                \
 362 do                                                                         \
 363   {                                                                        \
 364     if (mips_abi != ABI_32 && mips_abi != ABI_O64)                         \
 365       {                                                                    \
 366         bss_section ();                                                    \
 367         mips_declare_object (STREAM, NAME, "", ":\n", 0);                  \
 368         ASM_OUTPUT_ALIGN (STREAM, floor_log2 (ALIGN / BITS_PER_UNIT));     \
 369         ASM_OUTPUT_SKIP (STREAM, SIZE);                                    \
 370       }                                                                    \
 371     else                                                                   \
 372       mips_declare_common_object (STREAM, NAME, "\n\t.lcomm\t",            \
 373                                   SIZE, ALIGN, false);                     \
 374   }                                                                        \
 375 while (0)
 376
 377 /* A C statement (sans semicolon) to output to the stdio stream
 378    FILE the assembler definition of uninitialized global DECL named
 379    NAME whose size is SIZE bytes and alignment is ALIGN bytes.
 380    Try to use asm_output_aligned_bss to implement this macro.  */
 381
 382 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
 383   asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
 384
 385 #undef ASM_DECLARE_OBJECT_NAME
 386 #define ASM_DECLARE_OBJECT_NAME mips_declare_object_name
 387
 388 #undef ASM_FINISH_DECLARE_OBJECT
 389 #define ASM_FINISH_DECLARE_OBJECT mips_finish_declare_object
 390
 391 #undef LOCAL_LABEL_PREFIX
 392 #define LOCAL_LABEL_PREFIX ((mips_abi == ABI_32 || mips_abi == ABI_O64) \
 393                             ? "$" : ".")
 394
 395 /* Profiling is supported via libprof1.a not -lc_p as in IRIX 3.  */
 396 /* ??? If no mabi=X option give, but a mipsX option is, then should depend
 397    on the mipsX option.  */
 398 #undef IRIX_STARTFILE_SPEC
 399 #define IRIX_STARTFILE_SPEC \
 400   "%{!shared: \
 401      %{mabi=32:%{pg:gcrt1.o%s} \
 402        %{!pg:%{p:mcrt1.o%s libprof1.a%s}%{!p:crt1.o%s}}} \
 403      %{mabi=n32: \
 404        %{mips4:%{pg:/usr/lib32/mips4/gcrt1.o%s} \
 405          %{!pg:%{p:/usr/lib32/mips4/mcrt1.o%s /usr/lib32/mips4/libprof1.a%s} \
 406            %{!p:/usr/lib32/mips4/crt1.o%s}}} \
 407        %{!mips4:%{pg:/usr/lib32/mips3/gcrt1.o%s} \
 408          %{!pg:%{p:/usr/lib32/mips3/mcrt1.o%s /usr/lib32/mips3/libprof1.a%s} \
 409            %{!p:/usr/lib32/mips3/crt1.o%s}}}} \
 410      %{mabi=64: \
 411        %{mips4:%{pg:/usr/lib64/mips4/gcrt1.o} \
 412          %{!pg:%{p:/usr/lib64/mips4/mcrt1.o /usr/lib64/mips4/libprof1.a} \
 413            %{!p:/usr/lib64/mips4/crt1.o}}} \
 414        %{!mips4:%{pg:/usr/lib64/mips3/gcrt1.o} \
 415          %{!pg:%{p:/usr/lib64/mips3/mcrt1.o /usr/lib64/mips3/libprof1.a} \
 416            %{!p:/usr/lib64/mips3/crt1.o}}}} \
 417      %{!mabi*: \
 418        %{mips4:%{pg:/usr/lib32/mips4/gcrt1.o%s} \
 419          %{!pg:%{p:/usr/lib32/mips4/mcrt1.o%s /usr/lib32/mips4/libprof1.a%s} \
 420            %{!p:/usr/lib32/mips4/crt1.o%s}}} \
 421        %{!mips4:%{pg:/usr/lib32/mips3/gcrt1.o%s} \
 422          %{!pg:%{p:/usr/lib32/mips3/mcrt1.o%s /usr/lib32/mips3/libprof1.a%s} \
 423            %{!p:/usr/lib32/mips3/crt1.o%s}}}}}"
 424
 425 #undef STARTFILE_SPEC
 426 #define STARTFILE_SPEC "%(irix_startfile_spec) crtbegin.o%s"
 427
 428 #undef LIB_SPEC
 429 #define LIB_SPEC \
 430   "%{mabi=n32: %{mips4:-L/usr/lib32/mips4} %{!mips4:-L/usr/lib32/mips3} \
 431      -L/usr/lib32} \
 432    %{mabi=64: %{mips4:-L/usr/lib64/mips4} %{!mips4:-L/usr/lib64/mips3} \
 433      -L/usr/lib64} \
 434    %{!mabi*: %{mips4:-L/usr/lib32/mips4} %{!mips4:-L/usr/lib32/mips3} \
 435      -L/usr/lib32} \
 436    %{!shared: \
 437      -dont_warn_unused %{p:libprof1.a%s}%{pg:libprof1.a%s} -lc -warn_unused}"
 438
 439 /* Avoid getting two warnings for libgcc.a everytime we link.  */
 440 #undef LIBGCC_SPEC
 441 #define LIBGCC_SPEC "-dont_warn_unused -lgcc -warn_unused"
 442
 443 /* ??? If no mabi=X option give, but a mipsX option is, then should depend
 444    on the mipsX option.  */
 445 #undef IRIX_ENDFILE_SPEC
 446 #define IRIX_ENDFILE_SPEC \
 447   "%{!shared: \
 448      %{mabi=32:crtn.o%s}\
 449      %{mabi=n32:%{mips4:/usr/lib32/mips4/crtn.o%s}\
 450        %{!mips4:/usr/lib32/mips3/crtn.o%s}}\
 451      %{mabi=64:%{mips4:/usr/lib64/mips4/crtn.o%s}\
 452        %{!mips4:/usr/lib64/mips3/crtn.o%s}}\
 453      %{!mabi*:%{mips4:/usr/lib32/mips4/crtn.o%s}\
 454        %{!mips4:/usr/lib32/mips3/crtn.o%s}}}"
 455
 456 #undef ENDFILE_SPEC
 457 #define ENDFILE_SPEC "crtend.o%s %(irix_endfile_spec)"
 458
 459 /* ??? If no mabi=X option give, but a mipsX option is, then should depend
 460    on the mipsX option.  */
 461 #undef LINK_SPEC
 462 #define LINK_SPEC "\
 463 %{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{mips4} \
 464 %{bestGnum} %{shared} %{non_shared} \
 465 %{call_shared} %{no_archive} %{exact_version} %{w} \
 466 %{!shared: %{!non_shared: %{!call_shared:%{!r: -call_shared -no_unresolved}}}} \
 467 %{rpath} %{!mabi=32: -init __do_global_ctors -fini __do_global_dtors} \
 468 %{shared:-hidden_symbol __do_global_ctors,__do_global_ctors_1,__do_global_dtors} \
 469 -_SYSTYPE_SVR4 -woff 131 \
 470 %{mabi=32: -32}%{mabi=n32: -n32}%{mabi=64: -64}%{!mabi*: -n32}"
 471
 472 /* We need to disable collecting for the N32 and N64 ABIs.  */
 473 #define COLLECT_PARSE_FLAG(FLAG)                                \
 474 do {                                                            \
 475   if (! strcmp (FLAG, "-n32") || ! strcmp (FLAG, "-64"))        \
 476     do_collecting = 0;                                          \
 477   if (! strcmp (FLAG, "-32") || ! strcmp (FLAG, "-o32"))        \
 478     do_collecting = 1;                                          \
 479 } while (0)
 480
 481 #define MIPS_TFMODE_FORMAT mips_extended_format