gcc/config/mips/iris6.h

   1 /* Definitions of target machine for GNU compiler.  Iris version 6.
   2    Copyright (C) 1994, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
   3
   4 This file is part of GNU CC.
   5
   6 GNU CC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU CC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU CC; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21 /* Default to -mabi=n32 and -mips3.  */
  22 #define MIPS_ISA_DEFAULT 3
  23 #define MIPS_ABI_DEFAULT ABI_N32
  24 #define MULTILIB_DEFAULTS { "mabi=n32" }
  25
  26 #ifndef TARGET_DEFAULT
  27 #define TARGET_DEFAULT (MASK_ABICALLS|MASK_FLOAT64|MASK_64BIT)
  28 #endif
  29
  30 #include "mips/iris5.h"
  31 #include "mips/abi64.h"
  32
  33 /* For Irix 6, -mabi=64 implies TARGET_LONG64.  */
  34 /* This is handled in override_options.  */
  35
  36 #undef SUBTARGET_CC1_SPEC
  37 #define SUBTARGET_CC1_SPEC "%{static: -mno-abicalls}"
  38
  39 /* We must pass -D_LONGLONG always, even when -ansi is used, because irix6
  40    system header files require it.  This is OK, because gcc never warns
  41    when long long is used in system header files.  Alternatively, we can
  42    add support for the SGI builtin type __long_long.  */
  43 #undef CPP_PREDEFINES
  44 #define CPP_PREDEFINES \
  45  "-Dunix -Dmips -Dsgi -Dhost_mips -DMIPSEB -D_MIPSEB -DSYSTYPE_SVR4 \
  46   -D_LONGLONG -D_SVR4_SOURCE -D_MODERN_C -D__DSO__ \
  47   -Asystem(unix) -Asystem(svr4) -Acpu(mips) -Amachine(sgi)"
  48
  49 #undef SUBTARGET_CPP_SIZE_SPEC
  50 #define SUBTARGET_CPP_SIZE_SPEC "\
  51 %{mabi=32: -D__SIZE_TYPE__=unsigned\\ int -D__PTRDIFF_TYPE__=int} \
  52 %{mabi=n32: -D__SIZE_TYPE__=unsigned\\ int -D__PTRDIFF_TYPE__=int} \
  53 %{mabi=64: -D__SIZE_TYPE__=long\\ unsigned\\ int -D__PTRDIFF_TYPE__=long\\ int} \
  54 %{!mabi*: -D__SIZE_TYPE__=unsigned\\ int -D__PTRDIFF_TYPE__=int}"
  55
  56 /* We must make -mips3 do what -mlong64 used to do.  */
  57 /* ??? If no mipsX option given, but a mabi=X option is, then should set
  58    _MIPS_ISA based on the mabi=X option.  */
  59 /* ??? If no mabi=X option give, but a mipsX option is, then should set
  60    _MIPS_SIM based on the mipsX option.  */
  61 /* ??? Same for _MIPS_SZINT.  */
  62 /* ??? Same for _MIPS_SZPTR.  */
  63 /* ??? Same for __SIZE_TYPE and __PTRDIFF_TYPE.  */
  64 #undef SUBTARGET_CPP_SPEC
  65 #define SUBTARGET_CPP_SPEC "\
  66 %{!ansi:-D__EXTENSIONS__ -D_SGI_SOURCE} \
  67 %{mfp32: -D_MIPS_FPSET=16}%{!mfp32: -D_MIPS_FPSET=32} \
  68 %{mips1: -D_MIPS_ISA=_MIPS_ISA_MIPS1} \
  69 %{mips2: -D_MIPS_ISA=_MIPS_ISA_MIPS2} \
  70 %{mips3: -D_MIPS_ISA=_MIPS_ISA_MIPS3} \
  71 %{mips4: -D_MIPS_ISA=_MIPS_ISA_MIPS4} \
  72 %{!mips*: -D_MIPS_ISA=_MIPS_ISA_MIPS3} \
  73 %{mabi=32: -D_MIPS_SIM=_MIPS_SIM_ABI32} \
  74 %{mabi=n32: -D_ABIN32=2 -D_MIPS_SIM=_ABIN32} \
  75 %{mabi=64: -D_ABI64=3 -D_MIPS_SIM=_ABI64} \
  76 %{!mabi*: -D_ABIN32=2 -D_MIPS_SIM=_ABIN32} \
  77 %{!mint64: -D_MIPS_SZINT=32}%{mint64: -D_MIPS_SZINT=64} \
  78 %{mabi=32: -D_MIPS_SZLONG=32} \
  79 %{mabi=n32: -D_MIPS_SZLONG=32} \
  80 %{mabi=64: -D_MIPS_SZLONG=64} \
  81 %{!mabi*: -D_MIPS_SZLONG=32} \
  82 %{mabi=32: -D_MIPS_SZPTR=32} \
  83 %{mabi=n32: -D_MIPS_SZPTR=32} \
  84 %{mabi=64: -D_MIPS_SZPTR=64} \
  85 %{!mabi*: -D_MIPS_SZPTR=32} \
  86 %{!mips1:%{!mips2: -D_COMPILER_VERSION=601}}            \
  87 %{!mips*: -U__mips -D__mips=3} \
  88 %{mabi=32: -U__mips64} \
  89 %{mabi=n32: -D__mips64} \
  90 %{mabi=64: -D__mips64} \
  91 %{!mabi*: -D__mips64}"
  92
  93 /* Irix 6 uses DWARF-2.  */
  94 #define DWARF2_DEBUGGING_INFO
  95 #define MIPS_DEBUGGING_INFO
  96 #undef PREFERRED_DEBUGGING_TYPE
  97 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
  98
  99 /* The size in bytes of a DWARF field indicating an offset or length
 100    relative to a debug info section, specified to be 4 bytes in the DWARF-2
 101    specification.  The SGI/MIPS ABI defines it to be the same as PTR_SIZE.  */
 102 #define DWARF_OFFSET_SIZE PTR_SIZE
 103
 104 /* There is no GNU as port for Irix6 yet, so we set MD_EXEC_PREFIX so that
 105    gcc will automatically find SGI as instead of searching the user's path.
 106    The latter can fail when building a cross compiler if the user has . in
 107    the path before /usr/bin, since then gcc will find and try to use the link
 108    to the cross assembler which can't possibly work.  */
 109
 110 #undef MD_EXEC_PREFIX
 111 #define MD_EXEC_PREFIX "/usr/bin/"
 112
 113 /* We have no need for MD_STARTFILE_PREFIX.  */
 114 #undef MD_STARTFILE_PREFIX
 115
 116 #undef MACHINE_TYPE
 117 #define MACHINE_TYPE "SGI running IRIX 6.x"
 118
 119 /* The Irix 6.0.1 assembler doesn't like labels in the text section, so
 120    just avoid emitting them.  */
 121 #define ASM_IDENTIFY_GCC(x) ((void)0)
 122 #define ASM_IDENTIFY_LANGUAGE(x) ((void)0)
 123
 124 /* Irix 5 stuff that we don't need for Irix 6.  */
 125 /* ??? We do need this for the -mabi=32 switch though.  */
 126 #undef ASM_OUTPUT_UNDEF_FUNCTION
 127 #undef ASM_OUTPUT_EXTERNAL_LIBCALL
 128 #undef ASM_DECLARE_FUNCTION_SIZE
 129
 130 /* Stuff we need for Irix 6 that isn't in Irix 5.  */
 131
 132 /* The SGI assembler doesn't like labels before the .ent, so we must output
 133    the .ent and function name here, which is the normal place for it.  */
 134
 135 #undef ASM_DECLARE_FUNCTION_NAME
 136 #define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL)                   \
 137   do {                                                                  \
 138     fputs ("\t.ent\t", STREAM);                                         \
 139     assemble_name (STREAM, NAME);                                       \
 140     fputs ("\n", STREAM);                                               \
 141     assemble_name (STREAM, NAME);                                       \
 142     fputs (":\n", STREAM);                                              \
 143   } while (0)
 144
 145 /* Likewise, the SGI assembler doesn't like labels after the .end, so we
 146    must output the .end here.  */
 147 #define ASM_DECLARE_FUNCTION_SIZE(STREAM, NAME, DECL)                   \
 148   do {                                                                  \
 149     fputs ("\t.end\t", STREAM);                                         \
 150     assemble_name (STREAM, NAME);                                       \
 151     fputs ("\n", STREAM);                                               \
 152   } while (0)
 153
 154 /* Tell function_prologue in mips.c that we have already output the .ent/.end
 155    pseudo-ops.  */
 156 #define FUNCTION_NAME_ALREADY_DECLARED
 157
 158 #undef SET_ASM_OP       /* Has no equivalent.  See ASM_OUTPUT_DEF below.  */
 159
 160 #if 0
 161 /* This is *NOT* how to equate one symbol to another symbol.  The assembler
 162    '=' syntax just equates a name to a constant expression.
 163    See ASM_OUTPUT_WEAK_ALIAS.  */
 164
 165 #define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2)                              \
 166  do {   fprintf ((FILE), "\t");                                         \
 167         assemble_name (FILE, LABEL1);                                   \
 168         fprintf (FILE, " = ");                                          \
 169         assemble_name (FILE, LABEL2);                                   \
 170         fprintf (FILE, "\n");                                           \
 171   } while (0)
 172 #endif
 173
 174 /* Define the strings used for the special svr4 .type and .size directives.  */
 175
 176 #define TYPE_ASM_OP     ".type"
 177 #define SIZE_ASM_OP     ".size"
 178
 179 /* This is how we tell the assembler that a symbol is weak.  */
 180
 181 #define ASM_OUTPUT_WEAK_ALIAS(FILE,NAME,VALUE)  \
 182  do {                                           \
 183   fputs ("\t.weakext\t", FILE);                 \
 184   assemble_name (FILE, NAME);                   \
 185   if (VALUE)                                    \
 186     {                                           \
 187       fputc (' ', FILE);                        \
 188       assemble_name (FILE, VALUE);              \
 189     }                                           \
 190   fputc ('\n', FILE);                           \
 191  } while (0)
 192
 193 #define ASM_WEAKEN_LABEL(FILE,NAME) ASM_OUTPUT_WEAK_ALIAS(FILE,NAME,0)
 194
 195 #define POPSECTION_ASM_OP       ".popsection"
 196
 197 #define DEBUG_INFO_SECTION      ".debug_info,0x7000001e,0,0,1"
 198 #define DEBUG_LINE_SECTION      ".debug_line,0x7000001e,0,0,1"
 199 #define SFNAMES_SECTION         ".debug_sfnames,0x7000001e,0,0,1"
 200 #define SRCINFO_SECTION         ".debug_srcinfo,0x7000001e,0,0,1"
 201 #define MACINFO_SECTION         ".debug_macinfo,0x7000001e,0,0,1"
 202 #define PUBNAMES_SECTION        ".debug_pubnames,0x7000001e,0,0,1"
 203 #define ARANGES_SECTION         ".debug_aranges,0x7000001e,0,0,1"
 204 #define FRAME_SECTION           ".debug_frame,0x7000001e,0x08000000,0,1"
 205 #define ABBREV_SECTION          ".debug_abbrev,0x7000001e,0,0,1"
 206
 207 /* ??? If no mabi=X option give, but a mipsX option is, then should depend
 208    on the mipsX option.  */
 209 #undef SUBTARGET_ASM_SPEC
 210 #define SUBTARGET_ASM_SPEC "%{!mabi*:-n32}"
 211
 212 /* Must pass -g0 to the assembler, otherwise it may overwrite our
 213    debug info with its own debug info. */
 214 /* Must pass -show instead of -v.  */
 215 /* Must pass -G 0 to the assembler, otherwise we may get warnings about
 216    GOT overflow.  */
 217 /* ??? We pass -w to disable all assembler warnings.  The `label should be
 218    inside .ent/.end block' warning that we get for DWARF II debug info labels
 219    is particularly annoying.  */
 220 #undef SUBTARGET_MIPS_AS_ASM_SPEC
 221 #define SUBTARGET_MIPS_AS_ASM_SPEC "%{v:-show} -G 0 -w"
 222
 223 #undef SUBTARGET_ASM_DEBUGGING_SPEC
 224 #define SUBTARGET_ASM_DEBUGGING_SPEC "-g0"
 225
 226 /* Stuff for constructors.  Start here.  */
 227
 228 /* The assembler now accepts .section pseudo-ops, but it does not allow
 229    one to change the section in the middle of a function, so we can't use
 230    the INIT_SECTION_ASM_OP code in crtstuff.  But we can build up the ctor
 231    and dtor lists this way, so we use -init and -fini to invoke the
 232    do_global_* functions instead of running collect2.  */
 233
 234 #define BSS_SECTION_ASM_OP      ".section\t.bss"
 235 #define CONST_SECTION_ASM_OP_32 "\t.rdata"
 236 #define CONST_SECTION_ASM_OP_64 ".section\t.rodata"
 237
 238 /* The IRIX 6 assembler .section directive takes four additional args:
 239    section type, flags, entry size, and alignment.  The alignment of the
 240    .ctors and .dtors sections needs to be the same as the size of a pointer
 241    so that the linker doesn't add padding between elements.  */
 242 #if defined (CRT_BEGIN) || defined (CRT_END)
 243
 244 /* If we are included from crtstuff.c, these need to be plain strings.
 245    _MIPS_SZPTR is defined in SUBTARGET_CPP_SPEC above.  */
 246 #if _MIPS_SZPTR == 64
 247 #define CTORS_SECTION_ASM_OP ".section\t.ctors,1,2,0,8"
 248 #define DTORS_SECTION_ASM_OP ".section\t.dtors,1,2,0,8"
 249 #else /* _MIPS_SZPTR != 64 */
 250 #define CTORS_SECTION_ASM_OP ".section\t.ctors,1,2,0,4"
 251 #define DTORS_SECTION_ASM_OP ".section\t.dtors,1,2,0,4"
 252 #endif /* _MIPS_SZPTR == 64 */
 253
 254 #else /* ! (defined (CRT_BEGIN) || defined (CRT_END)) */
 255
 256 /* If we are included from varasm.c, these need to depend on -mabi.  */
 257 #define CTORS_SECTION_ASM_OP \
 258   (TARGET_LONG64 ? ".section\t.ctors,1,2,0,8" : ".section\t.ctors,1,2,0,4")
 259 #define DTORS_SECTION_ASM_OP \
 260   (TARGET_LONG64 ? ".section\t.dtors,1,2,0,8" : ".section\t.dtors,1,2,0,4")
 261 #endif /* defined (CRT_BEGIN) || defined (CRT_END) */
 262
 263 /* dwarf2out will handle padding this data properly.  We definitely don't
 264    want it 8-byte aligned on n32.  */
 265 #define EH_FRAME_SECTION_ASM_OP ".section\t.eh_frame,1,2,0,1"
 266
 267 /* A default list of other sections which we might be "in" at any given
 268    time.  For targets that use additional sections (e.g. .tdesc) you
 269    should override this definition in the target-specific file which
 270    includes this file.  */
 271
 272 #undef EXTRA_SECTIONS
 273 #define EXTRA_SECTIONS in_sdata, in_rdata, in_const, in_ctors, in_dtors
 274
 275 /* A default list of extra section function definitions.  For targets
 276    that use additional sections (e.g. .tdesc) you should override this
 277    definition in the target-specific file which includes this file.  */
 278
 279 /* ??? rdata_section is now same as svr4 const_section.  */
 280
 281 #undef EXTRA_SECTION_FUNCTIONS
 282 #define EXTRA_SECTION_FUNCTIONS                                         \
 283 void                                                                    \
 284 sdata_section ()                                                        \
 285 {                                                                       \
 286   if (in_section != in_sdata)                                           \
 287     {                                                                   \
 288       fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP);             \
 289       in_section = in_sdata;                                            \
 290     }                                                                   \
 291 }                                                                       \
 292                                                                         \
 293 void                                                                    \
 294 rdata_section ()                                                        \
 295 {                                                                       \
 296   if (in_section != in_rdata)                                           \
 297     {                                                                   \
 298       if (mips_abi != ABI_32)                                           \
 299         fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP_64);        \
 300       else                                                              \
 301         fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP_32);        \
 302       in_section = in_rdata;                                            \
 303     }                                                                   \
 304 }                                                                       \
 305   CTORS_SECTION_FUNCTION                                                \
 306   DTORS_SECTION_FUNCTION
 307
 308 #define CTORS_SECTION_FUNCTION                                          \
 309 void                                                                    \
 310 ctors_section ()                                                        \
 311 {                                                                       \
 312   if (in_section != in_ctors)                                           \
 313     {                                                                   \
 314       fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP);             \
 315       in_section = in_ctors;                                            \
 316     }                                                                   \
 317 }
 318
 319 #define DTORS_SECTION_FUNCTION                                          \
 320 void                                                                    \
 321 dtors_section ()                                                        \
 322 {                                                                       \
 323   if (in_section != in_dtors)                                           \
 324     {                                                                   \
 325       fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP);             \
 326       in_section = in_dtors;                                            \
 327     }                                                                   \
 328 }
 329
 330 /* A C statement (sans semicolon) to output an element in the table of
 331    global constructors.  */
 332 #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME)                               \
 333   do {                                                                  \
 334     ctors_section ();                                                   \
 335     fprintf (FILE, "\t%s\t ",                                           \
 336              TARGET_LONG64 ? ".dword" : ".word");                       \
 337     assemble_name (FILE, NAME);                                         \
 338     fprintf (FILE, "\n");                                               \
 339   } while (0)
 340
 341 /* A C statement (sans semicolon) to output an element in the table of
 342    global destructors.  */
 343 #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME)                                \
 344   do {                                                                  \
 345     dtors_section ();                                                   \
 346     fprintf (FILE, "\t%s\t ",                                           \
 347              TARGET_LONG64 ? ".dword" : ".word");                       \
 348     assemble_name (FILE, NAME);                                         \
 349     fprintf (FILE, "\n");                                               \
 350   } while (0)
 351
 352 /* A C statement to output something to the assembler file to switch to section
 353    NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL or
 354    NULL_TREE.  */
 355
 356 #define ASM_OUTPUT_SECTION_NAME(F, DECL, NAME, RELOC)                   \
 357 do {                                                                    \
 358   extern FILE *asm_out_text_file;                                       \
 359   if ((DECL) && TREE_CODE (DECL) == FUNCTION_DECL)                      \
 360     fprintf (asm_out_text_file, "\t.section %s,1,6,4,4\n", (NAME));     \
 361   else if ((DECL) && DECL_READONLY_SECTION (DECL, RELOC))               \
 362     fprintf (F, "\t.section %s,1,2,0,8\n", (NAME));                     \
 363   else                                                                  \
 364     fprintf (F, "\t.section %s,1,3,0,8\n", (NAME));                     \
 365 } while (0)
 366
 367 /* Stuff for constructors.  End here.  */
 368
 369 /* ??? Perhaps just include svr4.h in this file?  */
 370
 371 /* ??? SGI assembler may core dump when compiling with -g.
 372    Sometimes as succeeds, but then we get a linker error. (cmds.c in 072.sc)
 373    Getting rid of .file solves both problems.  */
 374 #undef ASM_OUTPUT_FILENAME
 375 #define ASM_OUTPUT_FILENAME(STREAM, NUM_SOURCE_FILENAMES, NAME) \
 376 do                                                              \
 377   {                                                             \
 378     fprintf (STREAM, "\t#.file\t%d ", NUM_SOURCE_FILENAMES);    \
 379     output_quoted_string (STREAM, NAME);                        \
 380     fputs ("\n", STREAM);                                       \
 381   }                                                             \
 382 while (0)
 383
 384 /* ??? SGI assembler gives warning whenever .lcomm is used.  */
 385 #undef ASM_OUTPUT_LOCAL
 386 #define ASM_OUTPUT_ALIGNED_LOCAL(STREAM, NAME, SIZE, ALIGN)                \
 387 do                                                                         \
 388   {                                                                        \
 389     if (mips_abi != ABI_32)                                                \
 390       {                                                                    \
 391         fprintf (STREAM, "%s\n", BSS_SECTION_ASM_OP);                      \
 392         mips_declare_object (STREAM, NAME, "", ":\n", 0);                  \
 393         ASM_OUTPUT_ALIGN (STREAM, floor_log2 (ALIGN / BITS_PER_UNIT));     \
 394         ASM_OUTPUT_SKIP (STREAM, SIZE);                                    \
 395         fprintf (STREAM, "\t%s\n", POPSECTION_ASM_OP);                     \
 396       }                                                                    \
 397     else                                                                   \
 398       mips_declare_object (STREAM, NAME, "\n\t.lcomm\t", ",%u\n", (SIZE)); \
 399   }                                                                        \
 400 while (0)
 401
 402 /* A C statement (sans semicolon) to output to the stdio stream
 403    FILE the assembler definition of uninitialized global DECL named
 404    NAME whose size is SIZE bytes and alignment is ALIGN bytes.
 405    Try to use asm_output_aligned_bss to implement this macro.  */
 406
 407 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
 408   asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
 409
 410 /* Write the extra assembler code needed to declare an object properly.  */
 411
 412 #undef ASM_DECLARE_OBJECT_NAME
 413 #define ASM_DECLARE_OBJECT_NAME(STREAM, NAME, DECL)                     \
 414 do                                                                      \
 415  {                                                                      \
 416    size_directive_output = 0;                                           \
 417    if (!flag_inhibit_size_directive && DECL_SIZE (DECL))        \
 418      {                                                                  \
 419        size_directive_output = 1;                                       \
 420        fprintf (STREAM, "\t%s\t ", SIZE_ASM_OP);                        \
 421        assemble_name (STREAM, NAME);                                    \
 422        fprintf (STREAM, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
 423      }                                                                  \
 424    mips_declare_object (STREAM, NAME, "", ":\n", 0);                    \
 425  }                                                                      \
 426 while (0)
 427
 428 /* Output the size directive for a decl in rest_of_decl_compilation
 429    in the case where we did not do so before the initializer.
 430    Once we find the error_mark_node, we know that the value of
 431    size_directive_output was set
 432    by ASM_DECLARE_OBJECT_NAME when it was run for the same decl.  */
 433
 434 #define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END)         \
 435 do {                                                                     \
 436      char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0);                   \
 437      if (!flag_inhibit_size_directive && DECL_SIZE (DECL)                \
 438          && ! AT_END && TOP_LEVEL                                        \
 439          && DECL_INITIAL (DECL) == error_mark_node                       \
 440          && !size_directive_output)                                      \
 441        {                                                                 \
 442          size_directive_output = 1;                                      \
 443          fprintf (FILE, "\t%s\t ", SIZE_ASM_OP);                         \
 444          assemble_name (FILE, name);                                     \
 445          fprintf (FILE, ",%d\n",  int_size_in_bytes (TREE_TYPE (DECL))); \
 446        }                                                                 \
 447    } while (0)
 448
 449 #undef LOCAL_LABEL_PREFIX
 450 #define LOCAL_LABEL_PREFIX (mips_abi == ABI_32 ? "$" : ".")
 451
 452 /* Profiling is supported via libprof1.a not -lc_p as in Irix 3.  */
 453 /* ??? If no mabi=X option give, but a mipsX option is, then should depend
 454    on the mipsX option.  */
 455 #undef STARTFILE_SPEC
 456 #define STARTFILE_SPEC \
 457   "%{!static:%{!shared: \
 458      %{mabi=32:%{pg:gcrt1.o%s} \
 459        %{!pg:%{p:mcrt1.o%s libprof1.a%s}%{!p:crt1.o%s}}} \
 460      %{mabi=n32: \
 461        %{mips4:%{pg:/usr/lib32/mips4/gcrt1.o%s} \
 462          %{!pg:%{p:/usr/lib32/mips4/mcrt1.o%s /usr/lib32/mips4/libprof1.a%s} \
 463            %{!p:/usr/lib32/mips4/crt1.o%s}}} \
 464        %{!mips4:%{pg:/usr/lib32/mips3/gcrt1.o%s} \
 465          %{!pg:%{p:/usr/lib32/mips3/mcrt1.o%s /usr/lib32/mips3/libprof1.a%s} \
 466            %{!p:/usr/lib32/mips3/crt1.o%s}}}} \
 467      %{mabi=64: \
 468        %{mips4:%{pg:/usr/lib64/mips4/gcrt1.o} \
 469          %{!pg:%{p:/usr/lib64/mips4/mcrt1.o /usr/lib64/mips4/libprof1.a} \
 470            %{!p:/usr/lib64/mips4/crt1.o}}} \
 471        %{!mips4:%{pg:/usr/lib64/mips3/gcrt1.o} \
 472          %{!pg:%{p:/usr/lib64/mips3/mcrt1.o /usr/lib64/mips3/libprof1.a} \
 473            %{!p:/usr/lib64/mips3/crt1.o}}}} \
 474      %{!mabi*: \
 475        %{mips4:%{pg:/usr/lib32/mips4/gcrt1.o%s} \
 476          %{!pg:%{p:/usr/lib32/mips4/mcrt1.o%s /usr/lib32/mips4/libprof1.a%s} \
 477            %{!p:/usr/lib32/mips4/crt1.o%s}}} \
 478        %{!mips4:%{pg:/usr/lib32/mips3/gcrt1.o%s} \
 479          %{!pg:%{p:/usr/lib32/mips3/mcrt1.o%s /usr/lib32/mips3/libprof1.a%s} \
 480            %{!p:/usr/lib32/mips3/crt1.o%s}}}}}} \
 481    %{static: \
 482      %{mabi=32:%{pg:/usr/lib/nonshared/gcrt1.o%s} \
 483        %{!pg:%{p:/usr/lib/nonshared/mcrt1.o%s /usr/lib/nonshared/libprof1.a%s} \
 484          %{!p:/usr/lib/nonshared/crt1.o%s}}} \
 485      %{mabi=n32: \
 486        %{mips4:%{pg:/usr/lib32/mips4/nonshared/gcrt1.o%s} \
 487          %{!pg:%{p:/usr/lib32/mips4/nonshared/mcrt1.o%s \
 488              /usr/lib32/mips4/nonshared/libprof1.a%s} \
 489            %{!p:/usr/lib32/mips4/nonshared/crt1.o%s}}} \
 490        %{!mips4:%{pg:/usr/lib32/mips3/nonshared/gcrt1.o%s} \
 491          %{!pg:%{p:/usr/lib32/mips3/nonshared/mcrt1.o%s \
 492              /usr/lib32/mips3/nonshared/libprof1.a%s} \
 493            %{!p:/usr/lib32/mips3/nonshared/crt1.o%s}}}} \
 494      %{mabi=64: \
 495        %{mips4:%{pg:/usr/lib64/mips4/nonshared/gcrt1.o} \
 496          %{!pg:%{p:/usr/lib64/mips4/nonshared/mcrt1.o \
 497              /usr/lib64/mips4/nonshared/libprof1.a} \
 498            %{!p:/usr/lib64/mips4/nonshared/crt1.o}}} \
 499        %{!mips4:%{pg:/usr/lib64/mips3/nonshared/gcrt1.o} \
 500          %{!pg:%{p:/usr/lib64/mips3/nonshared/mcrt1.o \
 501              /usr/lib64/mips3/nonshared/libprof1.a} \
 502            %{!p:/usr/lib64/mips3/nonshared/crt1.o}}}} \
 503      %{!mabi*: \
 504        %{mips4:%{pg:/usr/lib32/mips4/nonshared/gcrt1.o%s} \
 505          %{!pg:%{p:/usr/lib32/mips4/nonshared/mcrt1.o%s \
 506              /usr/lib32/mips4/nonshared/libprof1.a%s} \
 507            %{!p:/usr/lib32/mips4/nonshared/crt1.o%s}}} \
 508        %{!mips4:%{pg:/usr/lib32/mips3/nonshared/gcrt1.o%s} \
 509          %{!pg:%{p:/usr/lib32/mips3/nonshared/mcrt1.o%s \
 510            /usr/lib32/mips3/nonshared/libprof1.a%s} \
 511          %{!pg:%{p:/usr/lib32/mips3/nonshared/mcrt1.o%s \
 512              /usr/lib32/mips3/nonshared/libprof1.a%s} \
 513            %{!p:/usr/lib32/mips3/nonshared/crt1.o%s}}}}}} \
 514    crtbegin.o%s"
 515
 516 #undef LIB_SPEC
 517 #define LIB_SPEC \
 518   "%{mabi=n32: %{mips4:-L/usr/lib32/mips4} %{!mips4:-L/usr/lib32/mips3} \
 519      -L/usr/lib32} \
 520    %{mabi=64: %{mips4:-L/usr/lib64/mips4} %{!mips4:-L/usr/lib64/mips3} \
 521      -L/usr/lib64} \
 522    %{!mabi*: %{mips4:-L/usr/lib32/mips4} %{!mips4:-L/usr/lib32/mips3} \
 523      -L/usr/lib32} \
 524    %{!shared: \
 525      -dont_warn_unused %{p:libprof1.a%s}%{pg:libprof1.a%s} -lc -warn_unused}"
 526
 527 /* Avoid getting two warnings for libgcc.a everytime we link.  */
 528 #undef LIBGCC_SPEC
 529 #define LIBGCC_SPEC "-dont_warn_unused -lgcc -warn_unused"
 530
 531 /* ??? If no mabi=X option give, but a mipsX option is, then should depend
 532    on the mipsX option.  */
 533 #undef ENDFILE_SPEC
 534 #define ENDFILE_SPEC \
 535   "crtend.o%s \
 536    %{!shared: \
 537      %{mabi=32:crtn.o%s}\
 538      %{mabi=n32:%{mips4:/usr/lib32/mips4/crtn.o%s}\
 539        %{!mips4:/usr/lib32/mips3/crtn.o%s}}\
 540      %{mabi=64:%{mips4:/usr/lib64/mips4/crtn.o%s}\
 541        %{!mips4:/usr/lib64/mips3/crtn.o%s}}\
 542      %{!mabi*:%{mips4:/usr/lib32/mips4/crtn.o%s}\
 543        %{!mips4:/usr/lib32/mips3/crtn.o%s}}}"
 544
 545 /* ??? If no mabi=X option give, but a mipsX option is, then should depend
 546    on the mipsX option.  */
 547 #undef LINK_SPEC
 548 #define LINK_SPEC "\
 549 %{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{mips4} \
 550 %{bestGnum} %{shared} %{non_shared} \
 551 %{call_shared} %{no_archive} %{exact_version} %{w} \
 552 %{static: -non_shared} \
 553 %{!static: \
 554   %{!shared: %{!non_shared: %{!call_shared: -call_shared -no_unresolved}}}} \
 555 %{rpath} -init __do_global_ctors -fini __do_global_dtors \
 556 %{shared:-hidden_symbol __do_global_ctors,__do_global_dtors,__EH_FRAME_BEGIN__,__frame_dummy} \
 557 -_SYSTYPE_SVR4 %{mabi=32: -32}%{mabi=n32: -n32}%{mabi=64: -64} %{!mabi*: -n32}"