gcc/config/mips/iris6.h

   1 /* Definitions of target machine for GNU compiler.  Iris version 6.
   2    Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000, 2001, 2002, 2003
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GNU CC.
   6
   7 GNU CC 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 GNU CC 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 GNU CC; 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 /* Let mips.c know we need the Irix6 functions.  */
  23 #define TARGET_IRIX6 1
  24
  25 /* Default to -mabi=n32 and -mips3.  */
  26 #define MIPS_ISA_DEFAULT 3
  27 #define MIPS_ABI_DEFAULT ABI_N32
  28 #define MULTILIB_DEFAULTS { "mabi=n32" }
  29
  30 #ifndef TARGET_DEFAULT
  31 #define TARGET_DEFAULT (MASK_ABICALLS|MASK_FLOAT64|MASK_64BIT)
  32 #endif
  33
  34 #include "mips/iris5.h"
  35
  36 /* Irix6 assembler does handle DWARF2 directives.  Override setting in
  37    irix5.h file.  */
  38 #undef DWARF2_UNWIND_INFO
  39
  40 /* The Irix6 assembler will sometimes assign labels to the wrong
  41    section unless the labels are within .ent/.end blocks.  Therefore,
  42    we avoid creating such labels.  */
  43 #define DWARF2_GENERATE_TEXT_SECTION_LABEL 0
  44
  45 /* wchar_t is defined differently with and without -mabi=64.  */
  46
  47 #undef WCHAR_TYPE
  48 #define WCHAR_TYPE (Pmode == DImode ? "int" : "long int")
  49
  50 #undef WCHAR_TYPE_SIZE
  51 #define WCHAR_TYPE_SIZE 32
  52
  53 /* Same for wint_t.  */
  54
  55 #undef WINT_TYPE
  56 #define WINT_TYPE (Pmode == DImode ? "int" : "long int")
  57
  58 #undef WINT_TYPE_SIZE
  59 #define WINT_TYPE_SIZE 32
  60
  61 /* For Irix 6, -mabi=64 implies TARGET_LONG64.  */
  62 /* This is handled in override_options.  */
  63
  64 #undef SUBTARGET_CC1_SPEC
  65 #define SUBTARGET_CC1_SPEC ""
  66
  67 /* We must pass -D_LONGLONG always, even when -ansi is used, because irix6
  68    system header files require it.  This is OK, because gcc never warns
  69    when long long is used in system header files.  Alternatively, we can
  70    add support for the SGI builtin type __long_long.  */
  71
  72 /* The GNU C++ standard library requires that __EXTENSIONS__ and
  73    _SGI_SOURCE be defined on at least irix6.2 and probably all IRIX 6
  74    prior to 6.5.  They normally get defined if !ansi, for g++ we want
  75    them regardless.  We don't need this on IRIX 6.5 itself, but it
  76    shouldn't hurt other than the namespace pollution.  */
  77
  78 /* Undefine because this includes iris5.h.  */
  79 #undef  TARGET_OS_CPP_BUILTINS
  80 #define TARGET_OS_CPP_BUILTINS()                        \
  81     do {                                                \
  82         builtin_define_std ("host_mips");               \
  83         builtin_define ("_LONGLONG");                   \
  84         builtin_define ("_MODERN_C");                   \
  85         builtin_define ("_SVR4_SOURCE");                \
  86         builtin_define_std ("SYSTYPE_SVR4");            \
  87         builtin_define ("__DSO__");                     \
  88         builtin_define_std ("unix");                    \
  89         builtin_define_std ("sgi");                     \
  90         builtin_assert ("system=svr4");                 \
  91         builtin_assert ("system=unix");                 \
  92         builtin_assert ("machine=sgi");                 \
  93                                                         \
  94      if (mips_abi == ABI_32)                            \
  95       {                                                 \
  96         builtin_define ("_MIPS_SIM=_MIPS_SIM_ABI32");   \
  97         builtin_define ("_MIPS_SZLONG=32");             \
  98         builtin_define ("_MIPS_SZPTR=32");              \
  99       }                                                 \
 100      else if (mips_abi == ABI_64)                       \
 101       {                                                 \
 102         builtin_define ("_ABI64=3");                    \
 103         builtin_define ("_MIPS_SIM=_ABI64");            \
 104         builtin_define ("_MIPS_SZLONG=64");             \
 105         builtin_define ("_MIPS_SZPTR=64");              \
 106       }                                                 \
 107      else                                               \
 108       {                                                 \
 109         builtin_define ("_ABIN32=2");                   \
 110         builtin_define ("_MIPS_SIM=_ABIN32");           \
 111         builtin_define ("_MIPS_SZLONG=32");             \
 112         builtin_define ("_MIPS_SZPTR=32");              \
 113       }                                                 \
 114                                                         \
 115      if (!TARGET_FLOAT64)                               \
 116         builtin_define ("_MIPS_FPSET=16");              \
 117      else                                               \
 118         builtin_define ("_MIPS_FPSET=32");              \
 119                                                         \
 120      if (!TARGET_INT64)                                 \
 121         builtin_define ("_MIPS_SZINT=32");              \
 122      else                                               \
 123         builtin_define ("_MIPS_SZINT=64");              \
 124                                                         \
 125      if (!ISA_MIPS1 && !ISA_MIPS2)                      \
 126         builtin_define ("_COMPILER_VERSION=601");       \
 127                                                         \
 128      /* IRIX 6.5.18 and above provide many ISO C99      \
 129         features protected by the __c99 macro.          \
 130         libstdc++ v3 needs them as well.  */            \
 131      if ((c_language == clk_c && flag_isoc99)           \
 132          || c_language == clk_cplusplus)                \
 133         builtin_define ("__c99");                       \
 134                                                         \
 135      if (c_language == clk_cplusplus)                   \
 136       {                                                 \
 137         builtin_define ("__EXTENSIONS__");              \
 138         builtin_define ("_SGI_SOURCE");                 \
 139       }                                                 \
 140                                                         \
 141      if (!flag_iso)                                     \
 142        {                                                \
 143          builtin_define ("__EXTENSIONS__");             \
 144          builtin_define ("_SGI_SOURCE");                \
 145        }                                                \
 146 } while (0)
 147
 148 /* Irix 6 uses DWARF-2.  */
 149 #define DWARF2_DEBUGGING_INFO 1
 150 #define MIPS_DEBUGGING_INFO 1
 151 #undef PREFERRED_DEBUGGING_TYPE
 152 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
 153
 154 /* Force the generation of dwarf .debug_frame sections even if not
 155    compiling -g.  This guarantees that we can unwind the stack.  */
 156 #define DWARF2_FRAME_INFO 1
 157
 158 /* The size in bytes of a DWARF field indicating an offset or length
 159    relative to a debug info section, specified to be 4 bytes in the DWARF-2
 160    specification.  The SGI/MIPS ABI defines it to be the same as PTR_SIZE.  */
 161 #define DWARF_OFFSET_SIZE PTR_SIZE
 162
 163 /* There is no GNU as port for Irix6 yet, so we set MD_EXEC_PREFIX so that
 164    gcc will automatically find SGI as instead of searching the user's path.
 165    The latter can fail when building a cross compiler if the user has . in
 166    the path before /usr/bin, since then gcc will find and try to use the link
 167    to the cross assembler which can't possibly work.  */
 168
 169 #undef MD_EXEC_PREFIX
 170 #define MD_EXEC_PREFIX "/usr/bin/"
 171
 172 /* We have no need for MD_STARTFILE_PREFIX.  */
 173 #undef MD_STARTFILE_PREFIX
 174
 175 #undef MACHINE_TYPE
 176 #define MACHINE_TYPE "SGI running IRIX 6.x"
 177
 178 /* Irix 5 stuff that we don't need for Irix 6.  */
 179 /* ??? We do need this for the -mabi=32 switch though.  */
 180 #undef ASM_OUTPUT_UNDEF_FUNCTION
 181 #undef ASM_OUTPUT_EXTERNAL_LIBCALL
 182 #undef ASM_DECLARE_FUNCTION_SIZE
 183
 184 /* Stuff we need for Irix 6 that isn't in Irix 5.  */
 185
 186 /* The SGI assembler doesn't like labels before the .ent, so we must output
 187    the .ent and function name here, which is the normal place for it.  */
 188
 189 #undef ASM_DECLARE_FUNCTION_NAME
 190 #define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL)                   \
 191   do {                                                                  \
 192     fputs ("\t.ent\t", STREAM);                                         \
 193     assemble_name (STREAM, NAME);                                       \
 194     fputs ("\n", STREAM);                                               \
 195     assemble_name (STREAM, NAME);                                       \
 196     fputs (":\n", STREAM);                                              \
 197   } while (0)
 198
 199 /* Likewise, the SGI assembler doesn't like labels after the .end, so we
 200    must output the .end here.  */
 201 #define ASM_DECLARE_FUNCTION_SIZE(STREAM, NAME, DECL)                   \
 202   do {                                                                  \
 203     fputs ("\t.end\t", STREAM);                                         \
 204     assemble_name (STREAM, NAME);                                       \
 205     fputs ("\n", STREAM);                                               \
 206   } while (0)
 207
 208 /* Tell function_prologue in mips.c that we have already output the .ent/.end
 209    pseudo-ops.  */
 210 #define FUNCTION_NAME_ALREADY_DECLARED
 211
 212 #undef SET_ASM_OP       /* Has no equivalent.  See ASM_OUTPUT_DEF below.  */
 213
 214 #if 0
 215 /* This is *NOT* how to equate one symbol to another symbol.  The assembler
 216    '=' syntax just equates a name to a constant expression.
 217    See ASM_OUTPUT_WEAK_ALIAS.  */
 218
 219 #define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2)                              \
 220  do {   fprintf ((FILE), "\t");                                         \
 221         assemble_name (FILE, LABEL1);                                   \
 222         fprintf (FILE, " = ");                                          \
 223         assemble_name (FILE, LABEL2);                                   \
 224         fprintf (FILE, "\n");                                           \
 225   } while (0)
 226 #endif
 227
 228 /* Define the strings used for the special svr4 .type and .size directives.  */
 229
 230 #define TYPE_ASM_OP     "\t.type\t"
 231 #define SIZE_ASM_OP     "\t.size\t"
 232
 233 /* Irix assembler does not support the init_priority C++ attribute.  */
 234 #undef SUPPORTS_INIT_PRIORITY
 235 #define SUPPORTS_INIT_PRIORITY 0
 236
 237 /* A linker error can empirically be avoided by removing duplicate
 238    library search directories.  */
 239 #define LINK_ELIMINATE_DUPLICATE_LDIRECTORIES 1
 240
 241 #define POPSECTION_ASM_OP       "\t.popsection"
 242
 243 /* ??? If no mabi=X option give, but a mipsX option is, then should depend
 244    on the mipsX option.  */
 245 /* If no mips[3,4] option given, give the appropriate default for mabi=X */
 246 #undef SUBTARGET_ASM_SPEC
 247 #define SUBTARGET_ASM_SPEC "%{!mabi*:-n32} %{!mips*: %{!mabi*:-mips3} %{mabi=n32|mabi=64:-mips3}}"
 248
 249 /* Must pass -g0 to the assembler, otherwise it may overwrite our
 250    debug info with its own debug info.  */
 251 /* Must pass -show instead of -v.  */
 252 /* Must pass -G 0 to the assembler, otherwise we may get warnings about
 253    GOT overflow.  */
 254 /* ??? We pass -w to disable all assembler warnings.  The `label should be
 255    inside .ent/.end block' warning that we get for DWARF II debug info labels
 256    is particularly annoying.  */
 257 #undef SUBTARGET_MIPS_AS_ASM_SPEC
 258 #define SUBTARGET_MIPS_AS_ASM_SPEC "%{v:-show} -G 0 -w"
 259
 260 #undef SUBTARGET_ASM_DEBUGGING_SPEC
 261 #define SUBTARGET_ASM_DEBUGGING_SPEC "-g0"
 262
 263 /* The MIPS assembler occasionally misoptimizes.  Since GCC should be
 264    doing scheduling anyhow, just turn off optimization in the assembler.  */
 265 #undef SUBTARGET_ASM_OPTIMIZING_SPEC
 266 #define SUBTARGET_ASM_OPTIMIZING_SPEC "-O0"
 267
 268 /* The assembler now accepts .section pseudo-ops, but it does not allow
 269    one to change the section in the middle of a function, so we can't use
 270    the INIT_SECTION_ASM_OP code in crtstuff.  But we can build up the ctor
 271    and dtor lists this way, so we use -init and -fini to invoke the
 272    do_global_* functions instead of running collect2.  */
 273
 274 #define BSS_SECTION_ASM_OP      "\t.section\t.bss"
 275
 276 #undef READONLY_DATA_SECTION_ASM_OP
 277 #define READONLY_DATA_SECTION_ASM_OP_32 "\t.rdata"
 278 #define READONLY_DATA_SECTION_ASM_OP_64 "\t.section\t.rodata"
 279 #define READONLY_DATA_SECTION_ASM_OP            \
 280   (mips_abi != ABI_32 && mips_abi != ABI_O64    \
 281    ? READONLY_DATA_SECTION_ASM_OP_64            \
 282    : READONLY_DATA_SECTION_ASM_OP_32)
 283
 284 /* A default list of other sections which we might be "in" at any given
 285    time.  For targets that use additional sections (e.g. .tdesc) you
 286    should override this definition in the target-specific file which
 287    includes this file.  */
 288
 289 #undef EXTRA_SECTIONS
 290 #define EXTRA_SECTIONS in_sdata
 291
 292 /* A default list of extra section function definitions.  For targets
 293    that use additional sections (e.g. .tdesc) you should override this
 294    definition in the target-specific file which includes this file.  */
 295
 296 #undef EXTRA_SECTION_FUNCTIONS
 297 #define EXTRA_SECTION_FUNCTIONS                                         \
 298 void                                                                    \
 299 sdata_section ()                                                        \
 300 {                                                                       \
 301   if (in_section != in_sdata)                                           \
 302     {                                                                   \
 303       fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP);             \
 304       in_section = in_sdata;                                            \
 305     }                                                                   \
 306 }                                                                       \
 307                                                                         \
 308 const char *                                                            \
 309 current_section_name ()                                                 \
 310 {                                                                       \
 311   switch (in_section)                                                   \
 312     {                                                                   \
 313     case no_section:    return NULL;                                    \
 314     case in_text:       return ".text";                                 \
 315     case in_data:       return ".data";                                 \
 316     case in_sdata:      return ".sdata";                                \
 317     case in_bss:        return ".bss";                                  \
 318     case in_readonly_data:                                              \
 319       if (mips_abi != ABI_32 && mips_abi != ABI_O64)                    \
 320         return ".rodata";                                               \
 321       else                                                              \
 322         return ".rdata";                                                \
 323     case in_named:                                                      \
 324       return in_named_name;                                             \
 325     }                                                                   \
 326   abort ();                                                             \
 327 }                                                                       \
 328                                                                         \
 329 unsigned int                                                            \
 330 current_section_flags ()                                                \
 331 {                                                                       \
 332   switch (in_section)                                                   \
 333     {                                                                   \
 334     case no_section:    return 0;                                       \
 335     case in_text:       return SECTION_CODE;                            \
 336     case in_data:       return SECTION_WRITE;                           \
 337     case in_sdata:      return SECTION_WRITE | SECTION_SMALL;           \
 338     case in_bss:        return SECTION_WRITE | SECTION_BSS;             \
 339     case in_readonly_data: return 0;                                    \
 340     case in_named:      return get_named_section_flags (in_named_name); \
 341     }                                                                   \
 342   abort ();                                                             \
 343 }
 344
 345 /* Switch into a generic section.  */
 346 #undef TARGET_ASM_NAMED_SECTION
 347 #define TARGET_ASM_NAMED_SECTION  iris6_asm_named_section
 348
 349 /* SGI assembler needs all sorts of extra help to do alignment properly.  */
 350 #undef ASM_OUTPUT_ALIGN
 351 #define ASM_OUTPUT_ALIGN iris6_asm_output_align
 352 #undef ASM_FILE_START
 353 #define ASM_FILE_START  iris6_asm_file_start
 354 #undef ASM_FILE_END
 355 #define ASM_FILE_END    iris6_asm_file_end
 356
 357 #undef MAX_OFILE_ALIGNMENT
 358 #define MAX_OFILE_ALIGNMENT (32768*8)
 359
 360 /* ??? SGI assembler may core dump when compiling with -g.
 361    Sometimes as succeeds, but then we get a linker error. (cmds.c in 072.sc)
 362    Getting rid of .file solves both problems.  */
 363 #undef ASM_OUTPUT_FILENAME
 364 #define ASM_OUTPUT_FILENAME(STREAM, NUM_SOURCE_FILENAMES, NAME) \
 365 do                                                              \
 366   {                                                             \
 367     fprintf (STREAM, "\t#.file\t%d ", NUM_SOURCE_FILENAMES);    \
 368     output_quoted_string (STREAM, NAME);                        \
 369     fputs ("\n", STREAM);                                       \
 370   }                                                             \
 371 while (0)
 372
 373 /* ??? SGI assembler gives warning whenever .lcomm is used.  */
 374 #undef ASM_OUTPUT_LOCAL
 375 #define ASM_OUTPUT_ALIGNED_LOCAL(STREAM, NAME, SIZE, ALIGN)                \
 376 do                                                                         \
 377   {                                                                        \
 378     if (mips_abi != ABI_32 && mips_abi != ABI_O64)                         \
 379       {                                                                    \
 380         bss_section ();                                                    \
 381         mips_declare_object (STREAM, NAME, "", ":\n", 0);                  \
 382         ASM_OUTPUT_ALIGN (STREAM, floor_log2 (ALIGN / BITS_PER_UNIT));     \
 383         ASM_OUTPUT_SKIP (STREAM, SIZE);                                    \
 384       }                                                                    \
 385     else                                                                   \
 386       mips_declare_object (STREAM, NAME, "\n\t.lcomm\t", ",%u\n", (SIZE)); \
 387   }                                                                        \
 388 while (0)
 389
 390 /* A C statement (sans semicolon) to output to the stdio stream
 391    FILE the assembler definition of uninitialized global DECL named
 392    NAME whose size is SIZE bytes and alignment is ALIGN bytes.
 393    Try to use asm_output_aligned_bss to implement this macro.  */
 394
 395 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
 396   asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
 397
 398 /* Write the extra assembler code needed to declare an object properly.  */
 399
 400 #undef ASM_DECLARE_OBJECT_NAME
 401 #define ASM_DECLARE_OBJECT_NAME(STREAM, NAME, DECL)                     \
 402 do                                                                      \
 403  {                                                                      \
 404    HOST_WIDE_INT size;                                                  \
 405    size_directive_output = 0;                                           \
 406    if (!flag_inhibit_size_directive && DECL_SIZE (DECL))                \
 407      {                                                                  \
 408        size_directive_output = 1;                                       \
 409        size = int_size_in_bytes (TREE_TYPE (DECL));                     \
 410        ASM_OUTPUT_SIZE_DIRECTIVE (STREAM, NAME, size);                  \
 411      }                                                                  \
 412    mips_declare_object (STREAM, NAME, "", ":\n", 0);                    \
 413  }                                                                      \
 414 while (0)
 415
 416 /* Define the `__builtin_va_list' type for the ABI.  On Irix6, this
 417    type is `char *'.  */
 418 #undef BUILD_VA_LIST_TYPE
 419 #define BUILD_VA_LIST_TYPE(VALIST) \
 420   (VALIST) = build_pointer_type (char_type_node)
 421
 422 /* Output the size directive for a decl in rest_of_decl_compilation
 423    in the case where we did not do so before the initializer.
 424    Once we find the error_mark_node, we know that the value of
 425    size_directive_output was set
 426    by ASM_DECLARE_OBJECT_NAME when it was run for the same decl.  */
 427
 428 #undef ASM_FINISH_DECLARE_OBJECT
 429 #define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END)         \
 430 do {                                                                     \
 431      const char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0);             \
 432      HOST_WIDE_INT size;                                                 \
 433      if (!flag_inhibit_size_directive && DECL_SIZE (DECL)                \
 434          && ! AT_END && TOP_LEVEL                                        \
 435          && DECL_INITIAL (DECL) == error_mark_node                       \
 436          && !size_directive_output)                                      \
 437        {                                                                 \
 438          size_directive_output = 1;                                      \
 439          size = int_size_in_bytes (TREE_TYPE (DECL));                    \
 440          ASM_OUTPUT_SIZE_DIRECTIVE (FILE, name, size);                   \
 441        }                                                                 \
 442    } while (0)
 443
 444 #undef LOCAL_LABEL_PREFIX
 445 #define LOCAL_LABEL_PREFIX ((mips_abi == ABI_32 || mips_abi == ABI_O64) \
 446                             ? "$" : ".")
 447
 448 /* Profiling is supported via libprof1.a not -lc_p as in Irix 3.  */
 449 /* ??? If no mabi=X option give, but a mipsX option is, then should depend
 450    on the mipsX option.  */
 451 #undef STARTFILE_SPEC
 452 #define STARTFILE_SPEC \
 453   "%{!shared: \
 454      %{mabi=32:%{pg:gcrt1.o%s} \
 455        %{!pg:%{p:mcrt1.o%s libprof1.a%s}%{!p:crt1.o%s}}} \
 456      %{mabi=n32: \
 457        %{mips4:%{pg:/usr/lib32/mips4/gcrt1.o%s} \
 458          %{!pg:%{p:/usr/lib32/mips4/mcrt1.o%s /usr/lib32/mips4/libprof1.a%s} \
 459            %{!p:/usr/lib32/mips4/crt1.o%s}}} \
 460        %{!mips4:%{pg:/usr/lib32/mips3/gcrt1.o%s} \
 461          %{!pg:%{p:/usr/lib32/mips3/mcrt1.o%s /usr/lib32/mips3/libprof1.a%s} \
 462            %{!p:/usr/lib32/mips3/crt1.o%s}}}} \
 463      %{mabi=64: \
 464        %{mips4:%{pg:/usr/lib64/mips4/gcrt1.o} \
 465          %{!pg:%{p:/usr/lib64/mips4/mcrt1.o /usr/lib64/mips4/libprof1.a} \
 466            %{!p:/usr/lib64/mips4/crt1.o}}} \
 467        %{!mips4:%{pg:/usr/lib64/mips3/gcrt1.o} \
 468          %{!pg:%{p:/usr/lib64/mips3/mcrt1.o /usr/lib64/mips3/libprof1.a} \
 469            %{!p:/usr/lib64/mips3/crt1.o}}}} \
 470      %{!mabi*: \
 471        %{mips4:%{pg:/usr/lib32/mips4/gcrt1.o%s} \
 472          %{!pg:%{p:/usr/lib32/mips4/mcrt1.o%s /usr/lib32/mips4/libprof1.a%s} \
 473            %{!p:/usr/lib32/mips4/crt1.o%s}}} \
 474        %{!mips4:%{pg:/usr/lib32/mips3/gcrt1.o%s} \
 475          %{!pg:%{p:/usr/lib32/mips3/mcrt1.o%s /usr/lib32/mips3/libprof1.a%s} \
 476            %{!p:/usr/lib32/mips3/crt1.o%s}}}}} \
 477    crtbegin.o%s"
 478
 479 #undef LIB_SPEC
 480 #define LIB_SPEC \
 481   "%{mabi=n32: %{mips4:-L/usr/lib32/mips4} %{!mips4:-L/usr/lib32/mips3} \
 482      -L/usr/lib32} \
 483    %{mabi=64: %{mips4:-L/usr/lib64/mips4} %{!mips4:-L/usr/lib64/mips3} \
 484      -L/usr/lib64} \
 485    %{!mabi*: %{mips4:-L/usr/lib32/mips4} %{!mips4:-L/usr/lib32/mips3} \
 486      -L/usr/lib32} \
 487    %{!shared: \
 488      -dont_warn_unused %{p:libprof1.a%s}%{pg:libprof1.a%s} -lc -warn_unused}"
 489
 490 /* Avoid getting two warnings for libgcc.a everytime we link.  */
 491 #undef LIBGCC_SPEC
 492 #define LIBGCC_SPEC "-dont_warn_unused -lgcc -warn_unused"
 493
 494 /* ??? If no mabi=X option give, but a mipsX option is, then should depend
 495    on the mipsX option.  */
 496 #undef ENDFILE_SPEC
 497 #define ENDFILE_SPEC \
 498   "crtend.o%s \
 499    %{!shared: \
 500      %{mabi=32:crtn.o%s}\
 501      %{mabi=n32:%{mips4:/usr/lib32/mips4/crtn.o%s}\
 502        %{!mips4:/usr/lib32/mips3/crtn.o%s}}\
 503      %{mabi=64:%{mips4:/usr/lib64/mips4/crtn.o%s}\
 504        %{!mips4:/usr/lib64/mips3/crtn.o%s}}\
 505      %{!mabi*:%{mips4:/usr/lib32/mips4/crtn.o%s}\
 506        %{!mips4:/usr/lib32/mips3/crtn.o%s}}}"
 507
 508 /* ??? If no mabi=X option give, but a mipsX option is, then should depend
 509    on the mipsX option.  */
 510 #undef LINK_SPEC
 511 #define LINK_SPEC "\
 512 %{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{mips4} \
 513 %{bestGnum} %{shared} %{non_shared} \
 514 %{call_shared} %{no_archive} %{exact_version} %{w} \
 515 %{!shared: %{!non_shared: %{!call_shared: -call_shared -no_unresolved}}} \
 516 %{rpath} -init __do_global_ctors -fini __do_global_dtors \
 517 %{shared:-hidden_symbol __do_global_ctors,__do_global_ctors_1,__do_global_dtors} \
 518 -_SYSTYPE_SVR4 -woff 131 \
 519 %{mabi=32: -32}%{mabi=n32: -n32}%{mabi=64: -64}%{!mabi*: -n32}"
 520
 521 #define MIPS_TFMODE_FORMAT ibm_extended_format