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 ("__EXTENSIONS__");              \
 117       }                                                 \
 118     TARGET_SUB_OS_CPP_BUILTINS();                       \
 119   } while (0)
 120
 121 #define SUBTARGET_OVERRIDE_OPTIONS                      \
 122   do {                                                  \
 123     solaris_override_options ();                        \
 124   } while (0)
 125
 126 #if DEFAULT_ARCH32_P
 127 #define MULTILIB_DEFAULTS { "m32" }
 128 #else
 129 #define MULTILIB_DEFAULTS { "m64" }
 130 #endif
 131
 132 #if DEFAULT_ARCH32_P
 133 #define DEF_ARCH32_SPEC(__str) "%{!m64:" __str "}"
 134 #define DEF_ARCH64_SPEC(__str) "%{m64:" __str "}"
 135 #else
 136 #define DEF_ARCH32_SPEC(__str) "%{m32:" __str "}"
 137 #define DEF_ARCH64_SPEC(__str) "%{!m32:" __str "}"
 138 #endif
 139
 140 /* It's safe to pass -s always, even if -g is not used.  Those options are
 141    handled by both Sun as and GNU as.  */
 142 #define ASM_SPEC_BASE \
 143 "%{v:-V} %{Qy:} %{!Qn:-Qy} %{Ym,*} -s %(asm_cpu)"
 144
 145 #define ASM_PIC_SPEC " %{" FPIE_OR_FPIC_SPEC ":-K PIC}"
 146
 147 #undef ASM_CPU_DEFAULT_SPEC
 148 #define ASM_CPU_DEFAULT_SPEC \
 149 (DEFAULT_ARCH32_P ? "\
 150 %{m64:" ASM_CPU64_DEFAULT_SPEC "} \
 151 %{!m64:" ASM_CPU32_DEFAULT_SPEC "} \
 152 " : "\
 153 %{m32:" ASM_CPU32_DEFAULT_SPEC "} \
 154 %{!m32:" ASM_CPU64_DEFAULT_SPEC "} \
 155 ")
 156
 157 #undef LIB_SPEC
 158 #define LIB_SPEC \
 159   "%{!symbolic:\
 160      %{pthreads|pthread:-lpthread} \
 161      %{p|pg:-ldl} -lc}"
 162
 163 #ifndef CROSS_DIRECTORY_STRUCTURE
 164 #undef MD_EXEC_PREFIX
 165 #define MD_EXEC_PREFIX "/usr/ccs/bin/"
 166 #endif
 167
 168 /* Enable constructor priorities if the configured linker supports it.  */
 169 #undef SUPPORTS_INIT_PRIORITY
 170 #define SUPPORTS_INIT_PRIORITY HAVE_INITFINI_ARRAY_SUPPORT
 171
 172 /* Solaris libc and libm implement multiple behaviours for various
 173    interfaces that have changed over the years in different versions of the
 174    C standard.  The behaviour is controlled by linking corresponding
 175    values-*.o objects.  Each of these objects contain alternate definitions
 176    of one or more variables that the libraries use to select which
 177    conflicting behaviour they should exhibit.  There are two sets of these
 178    objects, values-X*.o and values-xpg*.o.
 179
 180    The values-X[ac].o objects set the variable _lib_version.  The Studio C
 181    compilers use values-Xc.o with either -Xc or (since Studio 12.6)
 182    -pedantic to select strictly conformant ISO C behaviour, otherwise
 183    values-Xa.o.
 184
 185    The values-xpg[46].o objects define either or both __xpg[46] variables,
 186    selecting XPG4 mode (__xpg4) and conforming C99/SUSv3 behavior (__xpg6).
 187
 188    Since GCC 5, gcc defaults to -std=gnu11 or higher, so we link
 189    values-xpg6.o to get C99 semantics.  Besides, most of the runtime
 190    libraries always require C99 semantics.
 191
 192    Since only one instance of _lib_version and __xpg[46] takes effekt (the
 193    first in ld.so.1's search path), we only link the values-*.o files into
 194    executable programs.  */
 195 #undef STARTFILE_ARCH_SPEC
 196 #define STARTFILE_ARCH_SPEC \
 197   "%{!shared:%{!symbolic: \
 198      %{pedantic:values-Xc.o%s; :values-Xa.o%s} \
 199      %{std=c90|std=gnu90:values-xpg4.o%s; :values-xpg6.o%s}}}"
 200
 201 #if defined(HAVE_LD_PIE) && defined(HAVE_SOLARIS_CRTS)
 202 #define STARTFILE_CRTBEGIN_SPEC "%{static:crtbegin.o%s; \
 203                                    shared|" PIE_SPEC ":crtbeginS.o%s; \
 204                                    :crtbegin.o%s}"
 205 #else
 206 #define STARTFILE_CRTBEGIN_SPEC "crtbegin.o%s"
 207 #endif
 208
 209 #if ENABLE_VTABLE_VERIFY
 210 #if SUPPORTS_INIT_PRIORITY
 211 #define STARTFILE_VTV_SPEC \
 212   "%{fvtable-verify=none:%s; \
 213      fvtable-verify=preinit:vtv_start_preinit.o%s; \
 214      fvtable-verify=std:vtv_start.o%s}"
 215 #define ENDFILE_VTV_SPEC \
 216   "%{fvtable-verify=none:%s; \
 217      fvtable-verify=preinit:vtv_end_preinit.o%s; \
 218      fvtable-verify=std:vtv_end.o%s}"
 219 #else /* !SUPPORTS_INIT_PRIORITY */
 220 #define STARTFILE_VTV_SPEC \
 221   "%{fvtable-verify=*: \
 222      %e-fvtable-verify=%* is not supported in this configuration}"
 223 #define ENDFILE_VTV_SPEC ""
 224 #endif /* !SUPPORTS_INIT_PRIORITY */
 225 #else /* !ENABLE_VTABLE_VERIFY */
 226 #define STARTFILE_VTV_SPEC ""
 227 #define ENDFILE_VTV_SPEC ""
 228 #endif /* !ENABLE_VTABLE_VERIFY */
 229
 230 /* We don't use the standard svr4 STARTFILE_SPEC because it's wrong for us.  */
 231 #undef STARTFILE_SPEC
 232 #ifdef HAVE_SOLARIS_CRTS
 233 /* Since Solaris 11.4, the OS delivers crt1.o, crti.o, and crtn.o, with a hook
 234    for compiler-dependent stuff like profile handling.  */
 235 #define STARTFILE_SPEC "%{!shared:%{!symbolic: \
 236                           crt1.o%s \
 237                           %{p:%e-p is not supported; \
 238                             pg:crtpg.o%s gmon.o%s; \
 239                               :crtp.o%s}}} \
 240                         crti.o%s %(startfile_arch) %(startfile_crtbegin) \
 241                         %(startfile_vtv)"
 242 #else
 243 #define STARTFILE_SPEC "%{!shared:%{!symbolic: \
 244                           %{p:mcrt1.o%s; \
 245                             pg:gcrt1.o%s gmon.o%s; \
 246                               :crt1.o%s}}} \
 247                         crti.o%s %(startfile_arch) %(startfile_crtbegin) \
 248                         %(startfile_vtv)"
 249 #endif
 250
 251 #if defined(HAVE_LD_PIE) && defined(HAVE_SOLARIS_CRTS)
 252 #define ENDFILE_CRTEND_SPEC "%{static:crtend.o%s; \
 253                                shared|" PIE_SPEC ":crtendS.o%s; \
 254                                :crtend.o%s}"
 255 #else
 256 #define ENDFILE_CRTEND_SPEC "crtend.o%s"
 257 #endif
 258
 259 #undef  ENDFILE_SPEC
 260 #define ENDFILE_SPEC \
 261   "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
 262    %(endfile_arch) %(endfile_vtv) %(endfile_crtend) crtn.o%s"
 263
 264 #undef LINK_ARCH32_SPEC_BASE
 265 #define LINK_ARCH32_SPEC_BASE \
 266   "%{G:-G} \
 267    %{YP,*} \
 268    %{R*} \
 269    %{!YP,*:%{p|pg:-Y P,%R/usr/lib/libp%R/lib:%R/usr/lib} \
 270            %{!p:%{!pg:-Y P,%R/lib:%R/usr/lib}}}"
 271
 272 #undef LINK_ARCH32_SPEC
 273 #define LINK_ARCH32_SPEC LINK_ARCH32_SPEC_BASE
 274
 275 /* This should be the same as LINK_ARCH32_SPEC_BASE, except with
 276    ARCH64_SUBDIR appended to the paths.  */
 277 #undef LINK_ARCH64_SPEC_BASE
 278 #define LINK_ARCH64_SPEC_BASE \
 279   "%{G:-G} \
 280    %{YP,*} \
 281    %{R*} \
 282    %{!YP,*:%{p|pg:-Y P,%R/usr/lib/libp/" ARCH64_SUBDIR ":%R/lib/" ARCH64_SUBDIR ":%R/usr/lib/" ARCH64_SUBDIR "} \
 283            %{!p:%{!pg:-Y P,%R/lib/" ARCH64_SUBDIR ":%R/usr/lib/" ARCH64_SUBDIR "}}}"
 284
 285 #undef LINK_ARCH64_SPEC
 286 #ifndef USE_GLD
 287 /* FIXME: Used to be SPARC-only.  Not SPARC-specfic but for the model name!  */
 288 #define LINK_ARCH64_SPEC \
 289   "%{mcmodel=medlow:-M /usr/lib/ld/" ARCH64_SUBDIR "/map.below4G} " \
 290   LINK_ARCH64_SPEC_BASE
 291 #else
 292 #define LINK_ARCH64_SPEC LINK_ARCH64_SPEC_BASE
 293 #endif
 294
 295 #ifdef USE_GLD
 296 #if DEFAULT_ARCH32_P
 297 #define ARCH_DEFAULT_EMULATION ARCH32_EMULATION
 298 #else
 299 #define ARCH_DEFAULT_EMULATION ARCH64_EMULATION
 300 #endif
 301 #define TARGET_LD_EMULATION "%{m32:-m " ARCH32_EMULATION "}" \
 302                             "%{m64:-m " ARCH64_EMULATION "}" \
 303                             "%{!m32:%{!m64:-m " ARCH_DEFAULT_EMULATION "}} "
 304 #else
 305 #define TARGET_LD_EMULATION ""
 306 #endif
 307
 308 #undef LINK_ARCH_SPEC
 309 #if DISABLE_MULTILIB
 310 #if DEFAULT_ARCH32_P
 311 #define LINK_ARCH_SPEC TARGET_LD_EMULATION " \
 312 %{m32:%(link_arch32)} \
 313 %{m64:%edoes not support multilib} \
 314 %{!m32:%{!m64:%(link_arch_default)}} \
 315 "
 316 #else
 317 #define LINK_ARCH_SPEC TARGET_LD_EMULATION " \
 318 %{m32:%edoes not support multilib} \
 319 %{m64:%(link_arch64)} \
 320 %{!m32:%{!m64:%(link_arch_default)}} \
 321 "
 322 #endif
 323 #else
 324 #define LINK_ARCH_SPEC TARGET_LD_EMULATION " \
 325 %{m32:%(link_arch32)} \
 326 %{m64:%(link_arch64)} \
 327 %{!m32:%{!m64:%(link_arch_default)}}"
 328 #endif
 329
 330 #define LINK_ARCH_DEFAULT_SPEC \
 331 (DEFAULT_ARCH32_P ? LINK_ARCH32_SPEC : LINK_ARCH64_SPEC)
 332
 333 #undef SUBTARGET_EXTRA_SPECS
 334 #define SUBTARGET_EXTRA_SPECS \
 335   { "startfile_arch",           STARTFILE_ARCH_SPEC },          \
 336   { "startfile_crtbegin",       STARTFILE_CRTBEGIN_SPEC },      \
 337   { "startfile_vtv",            STARTFILE_VTV_SPEC },           \
 338   { "link_arch32",              LINK_ARCH32_SPEC },             \
 339   { "link_arch64",              LINK_ARCH64_SPEC },             \
 340   { "link_arch_default",        LINK_ARCH_DEFAULT_SPEC },       \
 341   { "link_arch",                LINK_ARCH_SPEC },               \
 342   { "endfile_arch",             ENDFILE_ARCH_SPEC },            \
 343   { "endfile_crtend",           ENDFILE_CRTEND_SPEC },          \
 344   { "endfile_vtv",              ENDFILE_VTV_SPEC },             \
 345   SUBTARGET_CPU_EXTRA_SPECS
 346
 347 /* C++11 programs need -lrt for nanosleep.  */
 348 #define TIME_LIBRARY "rt"
 349
 350 #ifndef USE_GLD
 351 /* With Sun ld, -rdynamic is a no-op.  */
 352 #define RDYNAMIC_SPEC ""
 353 #else
 354 /* GNU ld needs --export-dynamic to implement -rdynamic.  */
 355 #define RDYNAMIC_SPEC "--export-dynamic"
 356 #endif
 357
 358 #ifndef USE_GLD
 359 /* Prefer native form with Solaris ld.  */
 360 #define SYSROOT_SPEC "-z sysroot=%R"
 361 #endif
 362
 363 #ifndef USE_GLD
 364 /* With Sun ld, use mapfile to enforce direct binding to libgcc_s unwinder.  */
 365 #define LINK_LIBGCC_MAPFILE_SPEC \
 366   "%{shared|shared-libgcc:-M %slibgcc-unwind.map}"
 367 #else
 368 /* GNU ld doesn't support direct binding.  */
 369 #define LINK_LIBGCC_MAPFILE_SPEC ""
 370 #endif
 371
 372 /* Clear hardware capabilities, either explicitly or with OpenMP:
 373    #pragma openmp declare simd creates clones for SSE2, AVX, and AVX2.  */
 374 #ifdef HAVE_LD_CLEARCAP
 375 #define LINK_CLEARCAP_SPEC " %{mclear-hwcap|fopenmp*:-M %sclearcap.map}"
 376 #else
 377 #define LINK_CLEARCAP_SPEC ""
 378 #endif
 379
 380 #undef  LINK_SPEC
 381 #define LINK_SPEC \
 382   "%{h*} %{v:-V} \
 383    %{!shared:%{!static:%{rdynamic: " RDYNAMIC_SPEC "}}} \
 384    %{static:-dn -Bstatic} \
 385    %{shared:-G -dy %{!mimpure-text:-z text}} " \
 386    LINK_LIBGCC_MAPFILE_SPEC LINK_CLEARCAP_SPEC " \
 387    %{symbolic:-Bsymbolic -G -dy -z text} \
 388    %(link_arch) \
 389    %{Qy:} %{!Qn:-Qy}"
 390
 391 /* Use --as-needed/-z ignore -lgcc_s for eh support.  */
 392 #ifdef HAVE_LD_AS_NEEDED
 393 #define USE_LD_AS_NEEDED 1
 394 #endif
 395
 396 #ifdef USE_GLD
 397 /* Solaris 11 build 135+ implements dl_iterate_phdr.  GNU ld needs
 398    --eh-frame-hdr to create the required .eh_frame_hdr sections.  */
 399 #if defined(HAVE_LD_EH_FRAME_HDR) && defined(TARGET_DL_ITERATE_PHDR)
 400 #define LINK_EH_SPEC "%{!static|static-pie:--eh-frame-hdr} "
 401 #endif /* HAVE_LD_EH_FRAME && TARGET_DL_ITERATE_PHDR */
 402 #endif
 403
 404 #if defined(HAVE_LD_PIE) && defined(HAVE_SOLARIS_CRTS)
 405 #ifdef USE_GLD
 406 /* Assert -z text by default to match Solaris ld.  */
 407 #define LD_PIE_SPEC "-pie %{!mimpure-text:-z text}"
 408 #else
 409 /* Solaris ld needs -z type=pie instead of -pie.  */
 410 #define LD_PIE_SPEC "-z type=pie %{mimpure-text:-z textoff}"
 411 #endif
 412 #else
 413 /* Error out if some part of PIE support is missing.  */
 414 #define LINK_PIE_SPEC \
 415   "%{no-pie:} %{pie:%e-pie is not supported in this configuration} "
 416 #endif
 417
 418 /* collect2.c can only parse GNU nm -n output.  Solaris nm needs -png to
 419    produce the same format.  */
 420 #define NM_FLAGS "-png"
 421 \f
 422 /* The system headers under Solaris 2 are C++-aware since 2.0.  */
 423 #define NO_IMPLICIT_EXTERN_C
 424
 425 #define STDC_0_IN_SYSTEM_HEADERS 1
 426
 427 /* Support Solaris-specific format checking for cmn_err.  */
 428 #define TARGET_N_FORMAT_TYPES 1
 429 #define TARGET_FORMAT_TYPES solaris_format_types
 430
 431 /* #pragma init and #pragma fini are implemented on top of init and
 432    fini attributes.  */
 433 #define SOLARIS_ATTRIBUTE_TABLE                                         \
 434   { "init",      0, 0, true,  false,  false, false, NULL, NULL },       \
 435   { "fini",      0, 0, true,  false,  false, false, NULL, NULL }
 436
 437 /* Solaris-specific #pragmas are implemented on top of attributes.  Hook in
 438    the bits from config/sol2.c.  */
 439 #define SUBTARGET_INSERT_ATTRIBUTES solaris_insert_attributes
 440 #define SUBTARGET_ATTRIBUTE_TABLE SOLARIS_ATTRIBUTE_TABLE
 441
 442 /* Allow macro expansion in #pragma pack.  */
 443 #define HANDLE_PRAGMA_PACK_WITH_EXPANSION
 444
 445 #define TARGET_CXX_DECL_MANGLING_CONTEXT solaris_cxx_decl_mangling_context
 446
 447 /* Solaris/x86 as and gas support unquoted section names.  */
 448 #ifndef SECTION_NAME_FORMAT
 449 #define SECTION_NAME_FORMAT     "%s"
 450 #endif
 451
 452 /* This is how to declare the size of a function.  For Solaris, we output
 453    any .init or .fini entries here.  */
 454 #undef ASM_DECLARE_FUNCTION_SIZE
 455 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL)            \
 456   do                                                            \
 457     {                                                           \
 458       if (!flag_inhibit_size_directive)                         \
 459         ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME);                 \
 460       solaris_output_init_fini (FILE, DECL);                    \
 461     }                                                           \
 462   while (0)
 463
 464 #ifndef USE_GAS
 465 #undef TARGET_ASM_ASSEMBLE_VISIBILITY
 466 #define TARGET_ASM_ASSEMBLE_VISIBILITY solaris_assemble_visibility
 467
 468 #define AS_NEEDS_DASH_FOR_PIPED_INPUT
 469
 470 /* The Solaris assembler cannot grok .stabd directives.  */
 471 #undef NO_DBX_BNSYM_ENSYM
 472 #define NO_DBX_BNSYM_ENSYM 1
 473 #endif
 474
 475 /* Solaris has an implementation of __enable_execute_stack.  */
 476 #define HAVE_ENABLE_EXECUTE_STACK
 477
 478 /* Static stack checking is supported by means of probes.  */
 479 #define STACK_CHECK_STATIC_BUILTIN 1
 480
 481 #define TARGET_POSIX_IO
 482
 483 /* Solaris 10 has the float and long double forms of math functions.
 484    We redefine this hook so the version from elfos.h header won't be used.  */
 485 #undef TARGET_LIBC_HAS_FUNCTION
 486 #define TARGET_LIBC_HAS_FUNCTION default_libc_has_function
 487
 488 extern GTY(()) tree solaris_pending_aligns;
 489 extern GTY(()) tree solaris_pending_inits;
 490 extern GTY(()) tree solaris_pending_finis;