gcc/config/sol2.h

   1 /* Operating system specific defines to be used when targeting GCC for any
   2    Solaris 2 system.
   3    Copyright (C) 2002-2015 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             builtin_define ("__STDC_VERSION__=199901L");\
  98             builtin_define ("_XOPEN_SOURCE=600");       \
  99             builtin_define ("_LARGEFILE_SOURCE=1");     \
 100             builtin_define ("_LARGEFILE64_SOURCE=1");   \
 101             builtin_define ("__EXTENSIONS__");          \
 102           }                                             \
 103         TARGET_SUB_OS_CPP_BUILTINS();                   \
 104     } while (0)
 105
 106 #define SUBTARGET_OVERRIDE_OPTIONS                      \
 107   do {                                                  \
 108     solaris_override_options ();                        \
 109   } while (0)
 110
 111 #if DEFAULT_ARCH32_P
 112 #define MULTILIB_DEFAULTS { "m32" }
 113 #else
 114 #define MULTILIB_DEFAULTS { "m64" }
 115 #endif
 116
 117 #if DEFAULT_ARCH32_P
 118 #define DEF_ARCH32_SPEC(__str) "%{!m64:" __str "}"
 119 #define DEF_ARCH64_SPEC(__str) "%{m64:" __str "}"
 120 #else
 121 #define DEF_ARCH32_SPEC(__str) "%{m32:" __str "}"
 122 #define DEF_ARCH64_SPEC(__str) "%{!m32:" __str "}"
 123 #endif
 124
 125 /* It's safe to pass -s always, even if -g is not used.  Those options are
 126    handled by both Sun as and GNU as.  */
 127 #define ASM_SPEC_BASE \
 128 "%{v:-V} %{Qy:} %{!Qn:-Qy} %{Ym,*} -s %(asm_cpu)"
 129
 130 #define ASM_PIC_SPEC " %{" FPIE_OR_FPIC_SPEC ":-K PIC}"
 131
 132 #undef ASM_CPU_DEFAULT_SPEC
 133 #define ASM_CPU_DEFAULT_SPEC \
 134 (DEFAULT_ARCH32_P ? "\
 135 %{m64:" ASM_CPU64_DEFAULT_SPEC "} \
 136 %{!m64:" ASM_CPU32_DEFAULT_SPEC "} \
 137 " : "\
 138 %{m32:" ASM_CPU32_DEFAULT_SPEC "} \
 139 %{!m32:" ASM_CPU64_DEFAULT_SPEC "} \
 140 ")
 141
 142 #undef LIB_SPEC
 143 #define LIB_SPEC \
 144   "%{!symbolic:\
 145      %{pthreads|pthread:-lpthread} \
 146      %{p|pg:-ldl} -lc}"
 147
 148 #ifndef CROSS_DIRECTORY_STRUCTURE
 149 #undef MD_EXEC_PREFIX
 150 #define MD_EXEC_PREFIX "/usr/ccs/bin/"
 151 #endif
 152
 153 #undef STARTFILE_ARCH_SPEC
 154 #define STARTFILE_ARCH_SPEC "%{ansi:values-Xc.o%s} \
 155                             %{!ansi:values-Xa.o%s}"
 156
 157 #if defined(HAVE_LD_PIE) && defined(HAVE_SOLARIS_CRTS)
 158 #define STARTFILE_CRTBEGIN_SPEC "%{shared:crtbeginS.o%s} \
 159                                  %{" PIE_SPEC ":crtbeginS.o%s} \
 160                                  %{" NO_PIE_SPEC ":crtbegin.o%s}"
 161 #else
 162 #define STARTFILE_CRTBEGIN_SPEC "crtbegin.o%s"
 163 #endif
 164
 165 /* We don't use the standard svr4 STARTFILE_SPEC because it's wrong for us.  */
 166 #undef STARTFILE_SPEC
 167 #ifdef HAVE_SOLARIS_CRTS
 168 /* Since Solaris 11.x and Solaris 12, the OS delivers crt1.o, crti.o, and
 169    crtn.o, with a hook for compiler-dependent stuff like profile handling.  */
 170 #define STARTFILE_SPEC "%{!shared:%{!symbolic: \
 171                           crt1.o%s \
 172                           %{p:%e-p is not supported; \
 173                             pg:crtpg.o%s gmon.o%s; \
 174                               :crtp.o%s}}} \
 175                         crti.o%s %(startfile_arch) %(startfile_crtbegin)"
 176 #else
 177 #define STARTFILE_SPEC "%{!shared:%{!symbolic: \
 178                           %{p:mcrt1.o%s; \
 179                             pg:gcrt1.o%s gmon.o%s; \
 180                               :crt1.o%s}}} \
 181                         crti.o%s %(startfile_arch) %(startfile_crtbegin)"
 182 #endif
 183
 184 #if defined(HAVE_LD_PIE) && defined(HAVE_SOLARIS_CRTS)
 185 #define ENDFILE_CRTEND_SPEC "%{shared:crtendS.o%s;: \
 186                                %{" PIE_SPEC ":crtendS.o%s} \
 187                                %{" NO_PIE_SPEC ":crtend.o%s}}"
 188 #else
 189 #define ENDFILE_CRTEND_SPEC "crtend.o%s"
 190 #endif
 191
 192 #undef  ENDFILE_SPEC
 193 #define ENDFILE_SPEC \
 194   "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
 195    %(endfile_arch) %(endfile_crtend) crtn.o%s"
 196
 197 #undef LINK_ARCH32_SPEC_BASE
 198 #define LINK_ARCH32_SPEC_BASE \
 199   "%{G:-G} \
 200    %{YP,*} \
 201    %{R*} \
 202    %{!YP,*:%{p|pg:-Y P,%R/usr/lib/libp%R/lib:%R/usr/lib} \
 203            %{!p:%{!pg:-Y P,%R/lib:%R/usr/lib}}}"
 204
 205 #undef LINK_ARCH32_SPEC
 206 #define LINK_ARCH32_SPEC LINK_ARCH32_SPEC_BASE
 207
 208 /* This should be the same as LINK_ARCH32_SPEC_BASE, except with
 209    ARCH64_SUBDIR appended to the paths.  */
 210 #undef LINK_ARCH64_SPEC_BASE
 211 #define LINK_ARCH64_SPEC_BASE \
 212   "%{G:-G} \
 213    %{YP,*} \
 214    %{R*} \
 215    %{!YP,*:%{p|pg:-Y P,%R/usr/lib/libp/" ARCH64_SUBDIR ":%R/lib/" ARCH64_SUBDIR ":%R/usr/lib/" ARCH64_SUBDIR "} \
 216            %{!p:%{!pg:-Y P,%R/lib/" ARCH64_SUBDIR ":%R/usr/lib/" ARCH64_SUBDIR "}}}"
 217
 218 #undef LINK_ARCH64_SPEC
 219 #ifndef USE_GLD
 220 /* FIXME: Used to be SPARC-only.  Not SPARC-specfic but for the model name!  */
 221 #define LINK_ARCH64_SPEC \
 222   "%{mcmodel=medlow:-M /usr/lib/ld/" ARCH64_SUBDIR "/map.below4G} " \
 223   LINK_ARCH64_SPEC_BASE
 224 #else
 225 #define LINK_ARCH64_SPEC LINK_ARCH64_SPEC_BASE
 226 #endif
 227
 228 #ifdef USE_GLD
 229 #if DEFAULT_ARCH32_P
 230 #define ARCH_DEFAULT_EMULATION ARCH32_EMULATION
 231 #else
 232 #define ARCH_DEFAULT_EMULATION ARCH64_EMULATION
 233 #endif
 234 #define TARGET_LD_EMULATION "%{m32:-m " ARCH32_EMULATION "}" \
 235                             "%{m64:-m " ARCH64_EMULATION "}" \
 236                             "%{!m32:%{!m64:-m " ARCH_DEFAULT_EMULATION "}} "
 237 #else
 238 #define TARGET_LD_EMULATION ""
 239 #endif
 240
 241 #undef LINK_ARCH_SPEC
 242 #if DISABLE_MULTILIB
 243 #if DEFAULT_ARCH32_P
 244 #define LINK_ARCH_SPEC TARGET_LD_EMULATION " \
 245 %{m32:%(link_arch32)} \
 246 %{m64:%edoes not support multilib} \
 247 %{!m32:%{!m64:%(link_arch_default)}} \
 248 "
 249 #else
 250 #define LINK_ARCH_SPEC TARGET_LD_EMULATION " \
 251 %{m32:%edoes not support multilib} \
 252 %{m64:%(link_arch64)} \
 253 %{!m32:%{!m64:%(link_arch_default)}} \
 254 "
 255 #endif
 256 #else
 257 #define LINK_ARCH_SPEC TARGET_LD_EMULATION " \
 258 %{m32:%(link_arch32)} \
 259 %{m64:%(link_arch64)} \
 260 %{!m32:%{!m64:%(link_arch_default)}}"
 261 #endif
 262
 263 #define LINK_ARCH_DEFAULT_SPEC \
 264 (DEFAULT_ARCH32_P ? LINK_ARCH32_SPEC : LINK_ARCH64_SPEC)
 265
 266 #undef SUBTARGET_EXTRA_SPECS
 267 #define SUBTARGET_EXTRA_SPECS \
 268   { "startfile_arch",           STARTFILE_ARCH_SPEC },          \
 269   { "startfile_crtbegin",       STARTFILE_CRTBEGIN_SPEC },      \
 270   { "link_arch32",              LINK_ARCH32_SPEC },             \
 271   { "link_arch64",              LINK_ARCH64_SPEC },             \
 272   { "link_arch_default",        LINK_ARCH_DEFAULT_SPEC },       \
 273   { "link_arch",                LINK_ARCH_SPEC },               \
 274   { "endfile_arch",             ENDFILE_ARCH_SPEC },            \
 275   { "endfile_crtend",           ENDFILE_CRTEND_SPEC },  \
 276   SUBTARGET_CPU_EXTRA_SPECS
 277
 278 /* C++11 programs need -lrt for nanosleep.  */
 279 #define TIME_LIBRARY "rt"
 280
 281 #ifndef USE_GLD
 282 /* With Sun ld, -rdynamic is a no-op.  */
 283 #define RDYNAMIC_SPEC ""
 284 #else
 285 /* GNU ld needs --export-dynamic to implement -rdynamic.  */
 286 #define RDYNAMIC_SPEC "--export-dynamic"
 287 #endif
 288
 289 #ifndef USE_GLD
 290 /* With Sun ld, use mapfile to enforce direct binding to libgcc_s unwinder.  */
 291 #define LINK_LIBGCC_MAPFILE_SPEC \
 292   "%{shared|shared-libgcc:-M %slibgcc-unwind.map}"
 293 #else
 294 /* GNU ld doesn't support direct binding.  */
 295 #define LINK_LIBGCC_MAPFILE_SPEC ""
 296 #endif
 297
 298 /* Clear hardware capabilities, either explicitly or with OpenMP:
 299    #pragma openmp declare simd creates clones for SSE2, AVX, and AVX2.  */
 300 #ifdef HAVE_LD_CLEARCAP
 301 #define LINK_CLEARCAP_SPEC " %{mclear-hwcap|fopenmp*:-M %sclearcap.map}"
 302 #else
 303 #define LINK_CLEARCAP_SPEC ""
 304 #endif
 305
 306 #undef  LINK_SPEC
 307 #define LINK_SPEC \
 308   "%{h*} %{v:-V} \
 309    %{!shared:%{!static:%{rdynamic: " RDYNAMIC_SPEC "}}} \
 310    %{static:-dn -Bstatic} \
 311    %{shared:-G -dy %{!mimpure-text:-z text}} " \
 312    LINK_LIBGCC_MAPFILE_SPEC LINK_CLEARCAP_SPEC " \
 313    %{symbolic:-Bsymbolic -G -dy -z text} \
 314    %(link_arch) \
 315    %{Qy:} %{!Qn:-Qy}"
 316
 317 /* Use --as-needed/-z ignore -lgcc_s for eh support.  */
 318 #ifdef HAVE_LD_AS_NEEDED
 319 #define USE_LD_AS_NEEDED 1
 320 #endif
 321
 322 #ifdef USE_GLD
 323 /* Solaris 11 build 135+ implements dl_iterate_phdr.  GNU ld needs
 324    --eh-frame-hdr to create the required .eh_frame_hdr sections.  */
 325 #if defined(HAVE_LD_EH_FRAME_HDR) && defined(TARGET_DL_ITERATE_PHDR)
 326 #define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
 327 #endif /* HAVE_LD_EH_FRAME && TARGET_DL_ITERATE_PHDR */
 328 #endif
 329
 330 #if defined(HAVE_LD_PIE) && defined(HAVE_SOLARIS_CRTS)
 331 #ifdef USE_GLD
 332 /* Assert -z text by default to match Solaris ld.  */
 333 #define LD_PIE_SPEC "-pie %{!mimpure-text:-z text}"
 334 #else
 335 /* Solaris ld needs -z type=pie instead of -pie.  */
 336 #define LD_PIE_SPEC "-z type=pie %{mimpure-text:-z textoff}"
 337 #endif
 338 #else
 339 /* Error out if some part of PIE support is missing.  */
 340 #define LINK_PIE_SPEC \
 341   "%{no-pie:} %{pie:%e-pie is not supported in this configuration} "
 342 #endif
 343
 344 /* collect2.c can only parse GNU nm -n output.  Solaris nm needs -png to
 345    produce the same format.  */
 346 #define NM_FLAGS "-png"
 347 \f
 348 /* The system headers under Solaris 2 are C++-aware since 2.0.  */
 349 #define NO_IMPLICIT_EXTERN_C
 350
 351 #define STDC_0_IN_SYSTEM_HEADERS 1
 352
 353 /* Support Solaris-specific format checking for cmn_err.  */
 354 #define TARGET_N_FORMAT_TYPES 1
 355 #define TARGET_FORMAT_TYPES solaris_format_types
 356
 357 /* #pragma init and #pragma fini are implemented on top of init and
 358    fini attributes.  */
 359 #define SOLARIS_ATTRIBUTE_TABLE                                         \
 360   { "init",      0, 0, true,  false,  false, NULL, false },             \
 361   { "fini",      0, 0, true,  false,  false, NULL, false }
 362
 363 /* Solaris-specific #pragmas are implemented on top of attributes.  Hook in
 364    the bits from config/sol2.c.  */
 365 #define SUBTARGET_INSERT_ATTRIBUTES solaris_insert_attributes
 366 #define SUBTARGET_ATTRIBUTE_TABLE SOLARIS_ATTRIBUTE_TABLE
 367
 368 /* Allow macro expansion in #pragma pack.  */
 369 #define HANDLE_PRAGMA_PACK_WITH_EXPANSION
 370
 371 #define TARGET_CXX_DECL_MANGLING_CONTEXT solaris_cxx_decl_mangling_context
 372
 373 /* Solaris/x86 as and gas support unquoted section names.  */
 374 #ifndef SECTION_NAME_FORMAT
 375 #define SECTION_NAME_FORMAT     "%s"
 376 #endif
 377
 378 /* This is how to declare the size of a function.  For Solaris, we output
 379    any .init or .fini entries here.  */
 380 #undef ASM_DECLARE_FUNCTION_SIZE
 381 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL)            \
 382   do                                                            \
 383     {                                                           \
 384       if (!flag_inhibit_size_directive)                         \
 385         ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME);                 \
 386       solaris_output_init_fini (FILE, DECL);                    \
 387     }                                                           \
 388   while (0)
 389
 390 #ifndef USE_GAS
 391 #undef TARGET_ASM_ASSEMBLE_VISIBILITY
 392 #define TARGET_ASM_ASSEMBLE_VISIBILITY solaris_assemble_visibility
 393
 394 #define AS_NEEDS_DASH_FOR_PIPED_INPUT
 395
 396 /* The Solaris assembler cannot grok .stabd directives.  */
 397 #undef NO_DBX_BNSYM_ENSYM
 398 #define NO_DBX_BNSYM_ENSYM 1
 399 #endif
 400
 401 #ifndef USE_GLD
 402 /* The Solaris linker doesn't understand constructor priorities.  */
 403 #undef SUPPORTS_INIT_PRIORITY
 404 #define SUPPORTS_INIT_PRIORITY 0
 405 #endif
 406
 407 /* Solaris has an implementation of __enable_execute_stack.  */
 408 #define HAVE_ENABLE_EXECUTE_STACK
 409
 410 /* Static stack checking is supported by means of probes.  */
 411 #define STACK_CHECK_STATIC_BUILTIN 1
 412
 413 #define TARGET_POSIX_IO
 414
 415 /* Solaris 10 has the float and long double forms of math functions.
 416    We redefine this hook so the version from elfos.h header won't be used.  */
 417 #undef TARGET_LIBC_HAS_FUNCTION
 418 #define TARGET_LIBC_HAS_FUNCTION default_libc_has_function
 419
 420 extern GTY(()) tree solaris_pending_aligns;
 421 extern GTY(()) tree solaris_pending_inits;
 422 extern GTY(()) tree solaris_pending_finis;