gcc/config/sol2.h

   1 /* Operating system specific defines to be used when targeting GCC for any
   2    Solaris 2 system.
   3    Copyright (C) 2002-2018 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 3, 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 COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 /* We are compiling for Solaris 2 now.  */
  22 #define TARGET_SOLARIS 1
  23
  24 /* wchar_t is called differently in <wchar.h> for 32 and 64-bit
  25    compilations.  This is called for by SCD 2.4.1, p. 6-83, Figure 6-65
  26    (32-bit) and p. 6P-10, Figure 6.38 (64-bit).  */
  27
  28 #undef WCHAR_TYPE
  29 #define WCHAR_TYPE (TARGET_64BIT ? "int" : "long int")
  30
  31 #undef WCHAR_TYPE_SIZE
  32 #define WCHAR_TYPE_SIZE 32
  33
  34 /* Same for wint_t.  See SCD 2.4.1, p. 6-83, Figure 6-66 (32-bit).  There's
  35    no corresponding 64-bit definition, but this is what Solaris 8
  36    <iso/wchar_iso.h> uses.  */
  37
  38 #undef WINT_TYPE
  39 #define WINT_TYPE (TARGET_64BIT ? "int" : "long int")
  40
  41 #undef WINT_TYPE_SIZE
  42 #define WINT_TYPE_SIZE 32
  43
  44 #define SIG_ATOMIC_TYPE "int"
  45
  46 /* ??? This definition of int8_t follows the system header but does
  47    not conform to C99.  Likewise int_fast8_t, int_least8_t.  */
  48 #define INT8_TYPE "char"
  49 #define INT16_TYPE "short int"
  50 #define INT32_TYPE "int"
  51 #define INT64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int")
  52 #define UINT8_TYPE "unsigned char"
  53 #define UINT16_TYPE "short unsigned int"
  54 #define UINT32_TYPE "unsigned int"
  55 #define UINT64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
  56
  57 #define INT_LEAST8_TYPE "char"
  58 #define INT_LEAST16_TYPE "short int"
  59 #define INT_LEAST32_TYPE "int"
  60 #define INT_LEAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int")
  61 #define UINT_LEAST8_TYPE "unsigned char"
  62 #define UINT_LEAST16_TYPE "short unsigned int"
  63 #define UINT_LEAST32_TYPE "unsigned int"
  64 #define UINT_LEAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
  65
  66 #define INT_FAST8_TYPE "char"
  67 #define INT_FAST16_TYPE "int"
  68 #define INT_FAST32_TYPE "int"
  69 #define INT_FAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int")
  70 #define UINT_FAST8_TYPE "unsigned char"
  71 #define UINT_FAST16_TYPE "unsigned int"
  72 #define UINT_FAST32_TYPE "unsigned int"
  73 #define UINT_FAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
  74
  75 #define INTPTR_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "int")
  76 #define UINTPTR_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "unsigned int")
  77
  78 #undef CPP_SUBTARGET_SPEC
  79 #define CPP_SUBTARGET_SPEC "\
  80 %{pthreads|pthread:-D_REENTRANT -D_PTHREADS}"
  81
  82 /* Names to predefine in the preprocessor for this target machine.  */
  83 #define TARGET_SUB_OS_CPP_BUILTINS()
  84 #define TARGET_OS_CPP_BUILTINS()                        \
  85   do {                                                  \
  86     builtin_define_std ("unix");                        \
  87     builtin_define_std ("sun");                         \
  88     builtin_define ("__svr4__");                        \
  89     builtin_define ("__SVR4");                          \
  90     builtin_assert ("system=unix");                     \
  91     builtin_assert ("system=svr4");                     \
  92     /* For C++ we need to add some additional macro     \
  93        definitions required by the C++ standard         \
  94        library.  */                                     \
  95     if (c_dialect_cxx ())                               \
  96       {                                                 \
  97         switch (cxx_dialect)                            \
  98           {                                             \
  99           case cxx98:                                   \
 100           case cxx11:                                   \
 101           case cxx14:                                   \
 102             /* C++11 and C++14 are based on C99.        \
 103                libstdc++ makes use of C99 features      \
 104                even for C++98.  */                      \
 105             builtin_define ("__STDC_VERSION__=199901L");\
 106             break;                                      \
 107                                                         \
 108           default:                                      \
 109             /* C++17 is based on C11.  */               \
 110             builtin_define ("__STDC_VERSION__=201112L");\
 111             break;                                      \
 112           }                                             \
 113         builtin_define ("_XOPEN_SOURCE=600");           \
 114         builtin_define ("_LARGEFILE_SOURCE=1");         \
 115         builtin_define ("_LARGEFILE64_SOURCE=1");       \
 116         builtin_define ("_FILE_OFFSET_BITS=64");        \
 117         builtin_define ("__EXTENSIONS__");              \
 118       }                                                 \
 119     TARGET_SUB_OS_CPP_BUILTINS();                       \
 120   } while (0)
 121
 122 #define SUBTARGET_OVERRIDE_OPTIONS                      \
 123   do {                                                  \
 124     solaris_override_options ();                        \
 125   } while (0)
 126
 127 #if DEFAULT_ARCH32_P
 128 #define MULTILIB_DEFAULTS { "m32" }
 129 #else
 130 #define MULTILIB_DEFAULTS { "m64" }
 131 #endif
 132
 133 #if DEFAULT_ARCH32_P
 134 #define DEF_ARCH32_SPEC(__str) "%{!m64:" __str "}"
 135 #define DEF_ARCH64_SPEC(__str) "%{m64:" __str "}"
 136 #else
 137 #define DEF_ARCH32_SPEC(__str) "%{m32:" __str "}"
 138 #define DEF_ARCH64_SPEC(__str) "%{!m32:" __str "}"
 139 #endif
 140
 141 /* It's safe to pass -s always, even if -g is not used.  Those options are
 142    handled by both Sun as and GNU as.  */
 143 #define ASM_SPEC_BASE \
 144 "%{v:-V} %{Qy:} %{!Qn:-Qy} %{Ym,*} -s %(asm_cpu)"
 145
 146 #define ASM_PIC_SPEC " %{" FPIE_OR_FPIC_SPEC ":-K PIC}"
 147
 148 #undef ASM_CPU_DEFAULT_SPEC
 149 #define ASM_CPU_DEFAULT_SPEC \
 150 (DEFAULT_ARCH32_P ? "\
 151 %{m64:" ASM_CPU64_DEFAULT_SPEC "} \
 152 %{!m64:" ASM_CPU32_DEFAULT_SPEC "} \
 153 " : "\
 154 %{m32:" ASM_CPU32_DEFAULT_SPEC "} \
 155 %{!m32:" ASM_CPU64_DEFAULT_SPEC "} \
 156 ")
 157
 158 #undef LIB_SPEC
 159 #define LIB_SPEC \
 160   "%{!symbolic:\
 161      %{pthreads|pthread:-lpthread} \
 162      %{p|pg:-ldl} -lc}"
 163
 164 #ifndef CROSS_DIRECTORY_STRUCTURE
 165 #undef MD_EXEC_PREFIX
 166 #define MD_EXEC_PREFIX "/usr/ccs/bin/"
 167 #endif
 168
 169 /* Enable constructor priorities if the configured linker supports it.  */
 170 #undef SUPPORTS_INIT_PRIORITY
 171 #define SUPPORTS_INIT_PRIORITY HAVE_INITFINI_ARRAY_SUPPORT
 172
 173 /* Solaris libc and libm implement multiple behaviours for various
 174    interfaces that have changed over the years in different versions of the
 175    C standard.  The behaviour is controlled by linking corresponding
 176    values-*.o objects.  Each of these objects contain alternate definitions
 177    of one or more variables that the libraries use to select which
 178    conflicting behaviour they should exhibit.  There are two sets of these
 179    objects, values-X*.o and values-xpg*.o.
 180
 181    The values-X[ac].o objects set the variable _lib_version.  The Studio C
 182    compilers use values-Xc.o with either -Xc or (since Studio 12.6)
 183    -pedantic to select strictly conformant ISO C behaviour, otherwise
 184    values-Xa.o.  Since -pedantic is a diagnostic option only in GCC, we
 185    need to specifiy the -std=c* options and -std=iso9899:199409.  We
 186    traditionally include -ansi, which affects C and C++, and also -std=c++*
 187    for consistency.
 188
 189    The values-xpg[46].o objects define either or both __xpg[46] variables,
 190    selecting XPG4 mode (__xpg4) and conforming C99/SUSv3 behavior (__xpg6).
 191
 192    Since GCC 5, gcc defaults to -std=gnu11 or higher, so we link
 193    values-xpg6.o to get C99 semantics.  Besides, most of the runtime
 194    libraries always require C99 semantics.
 195
 196    Since only one instance of _lib_version and __xpg[46] takes effekt (the
 197    first in ld.so.1's search path), we only link the values-*.o files into
 198    executable programs.  */
 199 #undef STARTFILE_ARCH_SPEC
 200 #define STARTFILE_ARCH_SPEC \
 201   "%{!shared:%{!symbolic: \
 202      %{ansi|std=c*|std=iso9899\\:199409:values-Xc.o%s; :values-Xa.o%s} \
 203      %{std=c90|std=gnu90:values-xpg4.o%s; :values-xpg6.o%s}}}"
 204
 205 #if defined(HAVE_LD_PIE) && defined(HAVE_SOLARIS_CRTS)
 206 #define STARTFILE_CRTBEGIN_SPEC "%{static:crtbegin.o%s; \
 207                                    shared|" PIE_SPEC ":crtbeginS.o%s; \
 208                                    :crtbegin.o%s}"
 209 #else
 210 #define STARTFILE_CRTBEGIN_SPEC "crtbegin.o%s"
 211 #endif
 212
 213 #if ENABLE_VTABLE_VERIFY
 214 #if SUPPORTS_INIT_PRIORITY
 215 #define STARTFILE_VTV_SPEC \
 216   "%{fvtable-verify=none:%s; \
 217      fvtable-verify=preinit:vtv_start_preinit.o%s; \
 218      fvtable-verify=std:vtv_start.o%s}"
 219 #define ENDFILE_VTV_SPEC \
 220   "%{fvtable-verify=none:%s; \
 221      fvtable-verify=preinit:vtv_end_preinit.o%s; \
 222      fvtable-verify=std:vtv_end.o%s}"
 223 #else /* !SUPPORTS_INIT_PRIORITY */
 224 #define STARTFILE_VTV_SPEC \
 225   "%{fvtable-verify=*: \
 226      %e-fvtable-verify=%* is not supported in this configuration}"
 227 #define ENDFILE_VTV_SPEC ""
 228 #endif /* !SUPPORTS_INIT_PRIORITY */
 229 #else /* !ENABLE_VTABLE_VERIFY */
 230 #define STARTFILE_VTV_SPEC ""
 231 #define ENDFILE_VTV_SPEC ""
 232 #endif /* !ENABLE_VTABLE_VERIFY */
 233
 234 /* We don't use the standard svr4 STARTFILE_SPEC because it's wrong for us.  */
 235 #undef STARTFILE_SPEC
 236 #ifdef HAVE_SOLARIS_CRTS
 237 /* Since Solaris 11.4, the OS delivers crt1.o, crti.o, and crtn.o, with a hook
 238    for compiler-dependent stuff like profile handling.  */
 239 #define STARTFILE_SPEC "%{!shared:%{!symbolic: \
 240                           crt1.o%s \
 241                           %{p:%e-p is not supported; \
 242                             pg:crtpg.o%s gmon.o%s; \
 243                               :crtp.o%s}}} \
 244                         crti.o%s %(startfile_arch) %(startfile_crtbegin) \
 245                         %(startfile_vtv)"
 246 #else
 247 #define STARTFILE_SPEC "%{!shared:%{!symbolic: \
 248                           %{p:mcrt1.o%s; \
 249                             pg:gcrt1.o%s gmon.o%s; \
 250                               :crt1.o%s}}} \
 251                         crti.o%s %(startfile_arch) %(startfile_crtbegin) \
 252                         %(startfile_vtv)"
 253 #endif
 254
 255 #if defined(HAVE_LD_PIE) && defined(HAVE_SOLARIS_CRTS)
 256 #define ENDFILE_CRTEND_SPEC "%{static:crtend.o%s; \
 257                                shared|" PIE_SPEC ":crtendS.o%s; \
 258                                :crtend.o%s}"
 259 #else
 260 #define ENDFILE_CRTEND_SPEC "crtend.o%s"
 261 #endif
 262
 263 #undef  ENDFILE_SPEC
 264 #define ENDFILE_SPEC \
 265   "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
 266    %(endfile_arch) %(endfile_vtv) %(endfile_crtend) crtn.o%s"
 267
 268 #undef LINK_ARCH32_SPEC_BASE
 269 #define LINK_ARCH32_SPEC_BASE \
 270   "%{G:-G} \
 271    %{YP,*} \
 272    %{R*} \
 273    %{!YP,*:%{p|pg:-Y P,%R/usr/lib/libp%R/lib:%R/usr/lib} \
 274            %{!p:%{!pg:-Y P,%R/lib:%R/usr/lib}}}"
 275
 276 #undef LINK_ARCH32_SPEC
 277 #define LINK_ARCH32_SPEC LINK_ARCH32_SPEC_BASE
 278
 279 /* This should be the same as LINK_ARCH32_SPEC_BASE, except with
 280    ARCH64_SUBDIR appended to the paths.  */
 281 #undef LINK_ARCH64_SPEC_BASE
 282 #define LINK_ARCH64_SPEC_BASE \
 283   "%{G:-G} \
 284    %{YP,*} \
 285    %{R*} \
 286    %{!YP,*:%{p|pg:-Y P,%R/usr/lib/libp/" ARCH64_SUBDIR ":%R/lib/" ARCH64_SUBDIR ":%R/usr/lib/" ARCH64_SUBDIR "} \
 287            %{!p:%{!pg:-Y P,%R/lib/" ARCH64_SUBDIR ":%R/usr/lib/" ARCH64_SUBDIR "}}}"
 288
 289 #undef LINK_ARCH64_SPEC
 290 #ifndef USE_GLD
 291 /* FIXME: Used to be SPARC-only.  Not SPARC-specfic but for the model name!  */
 292 #define LINK_ARCH64_SPEC \
 293   "%{mcmodel=medlow:-M /usr/lib/ld/" ARCH64_SUBDIR "/map.below4G} " \
 294   LINK_ARCH64_SPEC_BASE
 295 #else
 296 #define LINK_ARCH64_SPEC LINK_ARCH64_SPEC_BASE
 297 #endif
 298
 299 #ifdef USE_GLD
 300 #if DEFAULT_ARCH32_P
 301 #define ARCH_DEFAULT_EMULATION ARCH32_EMULATION
 302 #else
 303 #define ARCH_DEFAULT_EMULATION ARCH64_EMULATION
 304 #endif
 305 #define TARGET_LD_EMULATION "%{m32:-m " ARCH32_EMULATION "}" \
 306                             "%{m64:-m " ARCH64_EMULATION "}" \
 307                             "%{!m32:%{!m64:-m " ARCH_DEFAULT_EMULATION "}} "
 308 #else
 309 #define TARGET_LD_EMULATION ""
 310 #endif
 311
 312 #undef LINK_ARCH_SPEC
 313 #if DISABLE_MULTILIB
 314 #if DEFAULT_ARCH32_P
 315 #define LINK_ARCH_SPEC TARGET_LD_EMULATION " \
 316 %{m32:%(link_arch32)} \
 317 %{m64:%edoes not support multilib} \
 318 %{!m32:%{!m64:%(link_arch_default)}} \
 319 "
 320 #else
 321 #define LINK_ARCH_SPEC TARGET_LD_EMULATION " \
 322 %{m32:%edoes not support multilib} \
 323 %{m64:%(link_arch64)} \
 324 %{!m32:%{!m64:%(link_arch_default)}} \
 325 "
 326 #endif
 327 #else
 328 #define LINK_ARCH_SPEC TARGET_LD_EMULATION " \
 329 %{m32:%(link_arch32)} \
 330 %{m64:%(link_arch64)} \
 331 %{!m32:%{!m64:%(link_arch_default)}}"
 332 #endif
 333
 334 #define LINK_ARCH_DEFAULT_SPEC \
 335 (DEFAULT_ARCH32_P ? LINK_ARCH32_SPEC : LINK_ARCH64_SPEC)
 336
 337 #undef SUBTARGET_EXTRA_SPECS
 338 #define SUBTARGET_EXTRA_SPECS \
 339   { "startfile_arch",           STARTFILE_ARCH_SPEC },          \
 340   { "startfile_crtbegin",       STARTFILE_CRTBEGIN_SPEC },      \
 341   { "startfile_vtv",            STARTFILE_VTV_SPEC },           \
 342   { "link_arch32",              LINK_ARCH32_SPEC },             \
 343   { "link_arch64",              LINK_ARCH64_SPEC },             \
 344   { "link_arch_default",        LINK_ARCH_DEFAULT_SPEC },       \
 345   { "link_arch",                LINK_ARCH_SPEC },               \
 346   { "endfile_arch",             ENDFILE_ARCH_SPEC },            \
 347   { "endfile_crtend",           ENDFILE_CRTEND_SPEC },          \
 348   { "endfile_vtv",              ENDFILE_VTV_SPEC },             \
 349   SUBTARGET_CPU_EXTRA_SPECS
 350
 351 /* C++11 programs need -lrt for nanosleep.  */
 352 #define TIME_LIBRARY "rt"
 353
 354 #ifndef USE_GLD
 355 /* With Sun ld, -rdynamic is a no-op.  */
 356 #define RDYNAMIC_SPEC ""
 357 #else
 358 /* GNU ld needs --export-dynamic to implement -rdynamic.  */
 359 #define RDYNAMIC_SPEC "--export-dynamic"
 360 #endif
 361
 362 #ifndef USE_GLD
 363 /* Prefer native form with Solaris ld.  */
 364 #define SYSROOT_SPEC "-z sysroot=%R"
 365 #endif
 366
 367 #ifndef USE_GLD
 368 /* With Sun ld, use mapfile to enforce direct binding to libgcc_s unwinder.  */
 369 #define LINK_LIBGCC_MAPFILE_SPEC \
 370   "%{shared|shared-libgcc:-M %slibgcc-unwind.map}"
 371 #else
 372 /* GNU ld doesn't support direct binding.  */
 373 #define LINK_LIBGCC_MAPFILE_SPEC ""
 374 #endif
 375
 376 /* Clear hardware capabilities, either explicitly or with OpenMP:
 377    #pragma openmp declare simd creates clones for SSE2, AVX, and AVX2.  */
 378 #ifdef HAVE_LD_CLEARCAP
 379 #define LINK_CLEARCAP_SPEC " %{mclear-hwcap|fopenmp*:-M %sclearcap.map}"
 380 #else
 381 #define LINK_CLEARCAP_SPEC ""
 382 #endif
 383
 384 #undef  LINK_SPEC
 385 #define LINK_SPEC \
 386   "%{h*} %{v:-V} \
 387    %{!shared:%{!static:%{rdynamic: " RDYNAMIC_SPEC "}}} \
 388    %{static:-dn -Bstatic} \
 389    %{shared:-G -dy %{!mimpure-text:-z text}} " \
 390    LINK_LIBGCC_MAPFILE_SPEC LINK_CLEARCAP_SPEC " \
 391    %{symbolic:-Bsymbolic -G -dy -z text} \
 392    %(link_arch) \
 393    %{Qy:} %{!Qn:-Qy}"
 394
 395 /* Use --as-needed/-z ignore -lgcc_s for eh support.  */
 396 #ifdef HAVE_LD_AS_NEEDED
 397 #define USE_LD_AS_NEEDED 1
 398 #endif
 399
 400 #ifdef USE_GLD
 401 /* Solaris 11 build 135+ implements dl_iterate_phdr.  GNU ld needs
 402    --eh-frame-hdr to create the required .eh_frame_hdr sections.  */
 403 #if defined(HAVE_LD_EH_FRAME_HDR) && defined(TARGET_DL_ITERATE_PHDR)
 404 #define LINK_EH_SPEC "%{!static|static-pie:--eh-frame-hdr} "
 405 #endif /* HAVE_LD_EH_FRAME && TARGET_DL_ITERATE_PHDR */
 406 #endif
 407
 408 #if defined(HAVE_LD_PIE) && defined(HAVE_SOLARIS_CRTS)
 409 #ifdef USE_GLD
 410 /* Assert -z text by default to match Solaris ld.  */
 411 #define LD_PIE_SPEC "-pie %{!mimpure-text:-z text}"
 412 #else
 413 /* Solaris ld needs -z type=pie instead of -pie.  */
 414 #define LD_PIE_SPEC "-z type=pie %{mimpure-text:-z textoff}"
 415 #endif
 416 #else
 417 /* Error out if some part of PIE support is missing.  */
 418 #define LINK_PIE_SPEC \
 419   "%{no-pie:} %{pie:%e-pie is not supported in this configuration} "
 420 #endif
 421
 422 /* collect2.c can only parse GNU nm -n output.  Solaris nm needs -png to
 423    produce the same format.  */
 424 #define NM_FLAGS "-png"
 425 \f
 426 #define STDC_0_IN_SYSTEM_HEADERS 1
 427
 428 /* Support Solaris-specific format checking for cmn_err.  */
 429 #define TARGET_N_FORMAT_TYPES 1
 430 #define TARGET_FORMAT_TYPES solaris_format_types
 431
 432 /* #pragma init and #pragma fini are implemented on top of init and
 433    fini attributes.  */
 434 #define SOLARIS_ATTRIBUTE_TABLE                                         \
 435   { "init",      0, 0, true,  false,  false, false, NULL, NULL },       \
 436   { "fini",      0, 0, true,  false,  false, false, NULL, NULL }
 437
 438 /* Solaris-specific #pragmas are implemented on top of attributes.  Hook in
 439    the bits from config/sol2.c.  */
 440 #define SUBTARGET_INSERT_ATTRIBUTES solaris_insert_attributes
 441 #define SUBTARGET_ATTRIBUTE_TABLE SOLARIS_ATTRIBUTE_TABLE
 442
 443 /* Allow macro expansion in #pragma pack.  */
 444 #define HANDLE_PRAGMA_PACK_WITH_EXPANSION
 445
 446 #define TARGET_CXX_DECL_MANGLING_CONTEXT solaris_cxx_decl_mangling_context
 447
 448 /* Solaris/x86 as and gas support unquoted section names.  */
 449 #ifndef SECTION_NAME_FORMAT
 450 #define SECTION_NAME_FORMAT     "%s"
 451 #endif
 452
 453 /* This is how to declare the size of a function.  For Solaris, we output
 454    any .init or .fini entries here.  */
 455 #undef ASM_DECLARE_FUNCTION_SIZE
 456 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL)            \
 457   do                                                            \
 458     {                                                           \
 459       if (!flag_inhibit_size_directive)                         \
 460         ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME);                 \
 461       solaris_output_init_fini (FILE, DECL);                    \
 462     }                                                           \
 463   while (0)
 464
 465 #ifndef USE_GAS
 466 #undef TARGET_ASM_ASSEMBLE_VISIBILITY
 467 #define TARGET_ASM_ASSEMBLE_VISIBILITY solaris_assemble_visibility
 468
 469 #define AS_NEEDS_DASH_FOR_PIPED_INPUT
 470
 471 /* The Solaris assembler cannot grok .stabd directives.  */
 472 #undef NO_DBX_BNSYM_ENSYM
 473 #define NO_DBX_BNSYM_ENSYM 1
 474 #endif
 475
 476 /* Solaris has an implementation of __enable_execute_stack.  */
 477 #define HAVE_ENABLE_EXECUTE_STACK
 478
 479 /* Static stack checking is supported by means of probes.  */
 480 #define STACK_CHECK_STATIC_BUILTIN 1
 481
 482 #define TARGET_POSIX_IO
 483
 484 /* Solaris 10 has the float and long double forms of math functions.
 485    We redefine this hook so the version from elfos.h header won't be used.  */
 486 #undef TARGET_LIBC_HAS_FUNCTION
 487 #define TARGET_LIBC_HAS_FUNCTION default_libc_has_function
 488
 489 extern GTY(()) tree solaris_pending_aligns;
 490 extern GTY(()) tree solaris_pending_inits;
 491 extern GTY(()) tree solaris_pending_finis;