gcc/config/sol2.h

   1 /* Operating system specific defines to be used when targeting GCC for any
   2    Solaris 2 system.
   3    Copyright 2002, 2003, 2004, 2007, 2008, 2009, 2010, 2011
   4    Free Software Foundation, Inc.
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 3, or (at your option)
  11 any later version.
  12
  13 GCC is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21
  22 /* We are compiling for Solaris 2 now.  */
  23 #define TARGET_SOLARIS 1
  24
  25 /* Solaris 2 (at least as of 2.5.1) uses a 32-bit wchar_t.  */
  26 #undef WCHAR_TYPE
  27 #define WCHAR_TYPE "long int"
  28
  29 #undef WCHAR_TYPE_SIZE
  30 #define WCHAR_TYPE_SIZE BITS_PER_WORD
  31
  32 /* Solaris 2 uses a wint_t different from the default. This is required
  33    by the SCD 2.4.1, p. 6-83, Figure 6-66.  */
  34 #undef  WINT_TYPE
  35 #define WINT_TYPE "long int"
  36
  37 #undef  WINT_TYPE_SIZE
  38 #define WINT_TYPE_SIZE BITS_PER_WORD
  39
  40 #define SIG_ATOMIC_TYPE "int"
  41
  42 /* ??? This definition of int8_t follows the system header but does
  43    not conform to C99.  Likewise int_fast8_t, int_least8_t.  */
  44 #define INT8_TYPE "char"
  45 #define INT16_TYPE "short int"
  46 #define INT32_TYPE "int"
  47 #define INT64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int")
  48 #define UINT8_TYPE "unsigned char"
  49 #define UINT16_TYPE "short unsigned int"
  50 #define UINT32_TYPE "unsigned int"
  51 #define UINT64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
  52
  53 #define INT_LEAST8_TYPE "char"
  54 #define INT_LEAST16_TYPE "short int"
  55 #define INT_LEAST32_TYPE "int"
  56 #define INT_LEAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int")
  57 #define UINT_LEAST8_TYPE "unsigned char"
  58 #define UINT_LEAST16_TYPE "short unsigned int"
  59 #define UINT_LEAST32_TYPE "unsigned int"
  60 #define UINT_LEAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
  61
  62 #define INT_FAST8_TYPE "char"
  63 #define INT_FAST16_TYPE "int"
  64 #define INT_FAST32_TYPE "int"
  65 #define INT_FAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "long long int")
  66 #define UINT_FAST8_TYPE "unsigned char"
  67 #define UINT_FAST16_TYPE "unsigned int"
  68 #define UINT_FAST32_TYPE "unsigned int"
  69 #define UINT_FAST64_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "long long unsigned int")
  70
  71 #define INTPTR_TYPE (LONG_TYPE_SIZE == 64 ? "long int" : "int")
  72 #define UINTPTR_TYPE (LONG_TYPE_SIZE == 64 ? "long unsigned int" : "unsigned int")
  73
  74 #undef CPP_SUBTARGET_SPEC
  75 #define CPP_SUBTARGET_SPEC "\
  76 %{pthreads|pthread:-D_REENTRANT -D_PTHREADS}"
  77
  78 /* Names to predefine in the preprocessor for this target machine.  */
  79 #define TARGET_SUB_OS_CPP_BUILTINS()
  80 #define TARGET_OS_CPP_BUILTINS()                        \
  81     do {                                                \
  82         builtin_define_std ("unix");                    \
  83         builtin_define_std ("sun");                     \
  84         builtin_define ("__svr4__");                    \
  85         builtin_define ("__SVR4");                      \
  86         builtin_assert ("system=unix");                 \
  87         builtin_assert ("system=svr4");                 \
  88         /* For C++ we need to add some additional macro \
  89            definitions required by the C++ standard     \
  90            library.  */                                 \
  91         if (c_dialect_cxx ())                           \
  92           {                                             \
  93             builtin_define ("__STDC_VERSION__=199901L");\
  94             builtin_define ("_XOPEN_SOURCE=600");       \
  95             builtin_define ("_LARGEFILE_SOURCE=1");     \
  96             builtin_define ("_LARGEFILE64_SOURCE=1");   \
  97             builtin_define ("__EXTENSIONS__");          \
  98           }                                             \
  99         TARGET_SUB_OS_CPP_BUILTINS();                   \
 100     } while (0)
 101
 102 /* It's safe to pass -s always, even if -g is not used.  Those options are
 103    handled by both Sun as and GNU as.  */
 104 #define ASM_SPEC_BASE \
 105 "%{v:-V} %{Qy:} %{!Qn:-Qy} %{Ym,*} -s %(asm_cpu)"
 106
 107 #define ASM_PIC_SPEC " %{fpic|fpie|fPIC|fPIE:-K PIC}"
 108
 109 #undef LIB_SPEC
 110 #define LIB_SPEC \
 111   "%{!symbolic:\
 112      %{pthreads|pthread:-lpthread} \
 113      %{pthreads|pthread|fprofile-generate*:" LIB_TLS_SPEC "} \
 114      %{p|pg:-ldl} -lc}"
 115
 116 #ifndef CROSS_DIRECTORY_STRUCTURE
 117 #undef MD_EXEC_PREFIX
 118 #define MD_EXEC_PREFIX "/usr/ccs/bin/"
 119
 120 #undef MD_STARTFILE_PREFIX
 121 #define MD_STARTFILE_PREFIX "/usr/ccs/lib/"
 122 #endif
 123
 124 #undef STARTFILE_ARCH32_SPEC
 125 #define STARTFILE_ARCH32_SPEC "%{ansi:values-Xc.o%s} \
 126                             %{!ansi:values-Xa.o%s}"
 127
 128 #undef STARTFILE_ARCH_SPEC
 129 #define STARTFILE_ARCH_SPEC STARTFILE_ARCH32_SPEC
 130
 131 /* We don't use the standard svr4 STARTFILE_SPEC because it's wrong for us.  */
 132 #undef STARTFILE_SPEC
 133 #define STARTFILE_SPEC "%{!shared: \
 134                          %{!symbolic: \
 135                           %{p:mcrt1.o%s} \
 136                           %{!p: \
 137                             %{pg:gcrt1.o%s gmon.o%s} \
 138                             %{!pg:crt1.o%s}}}} \
 139                         crti.o%s %(startfile_arch) \
 140                         crtbegin.o%s"
 141
 142 #undef  ENDFILE_SPEC
 143 #define ENDFILE_SPEC \
 144   "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
 145    crtend.o%s crtn.o%s"
 146
 147 #undef LINK_ARCH32_SPEC_BASE
 148 #define LINK_ARCH32_SPEC_BASE \
 149   "%{G:-G} \
 150    %{YP,*} \
 151    %{R*} \
 152    %{!YP,*:%{p|pg:-Y P,%R/usr/ccs/lib/libp:%R/usr/lib/libp:%R/usr/ccs/lib:%R/lib:%R/usr/lib} \
 153            %{!p:%{!pg:-Y P,%R/usr/ccs/lib:%R/lib:%R/usr/lib}}}"
 154
 155 #undef LINK_ARCH32_SPEC
 156 #define LINK_ARCH32_SPEC LINK_ARCH32_SPEC_BASE
 157
 158 #undef LINK_ARCH_SPEC
 159 #define LINK_ARCH_SPEC LINK_ARCH32_SPEC
 160
 161 #ifndef USE_GLD
 162 /* With Sun ld, -rdynamic is a no-op.  */
 163 #define RDYNAMIC_SPEC ""
 164 #else
 165 /* GNU ld needs --export-dynamic to implement -rdynamic.  */
 166 #define RDYNAMIC_SPEC "--export-dynamic"
 167 #endif
 168
 169 #undef  LINK_SPEC
 170 #define LINK_SPEC \
 171   "%{h*} %{v:-V} \
 172    %{!shared:%{!static:%{rdynamic: " RDYNAMIC_SPEC "}}} \
 173    %{static:-dn -Bstatic} \
 174    %{shared:-G -dy %{!mimpure-text:-z text}} \
 175    %{symbolic:-Bsymbolic -G -dy -z text} \
 176    %{pthreads|pthread|fprofile-generate*:" LIB_THREAD_LDFLAGS_SPEC "} \
 177    %(link_arch) \
 178    %{Qy:} %{!Qn:-Qy}"
 179
 180 #ifdef USE_GLD
 181 /* Solaris 11 build 135+ implements dl_iterate_phdr.  GNU ld needs
 182    --eh-frame-hdr to create the required .eh_frame_hdr sections.  */
 183 #if defined(HAVE_LD_EH_FRAME_HDR) && defined(TARGET_DL_ITERATE_PHDR)
 184 #define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
 185 #endif /* HAVE_LD_EH_FRAME && TARGET_DL_ITERATE_PHDR */
 186 #endif
 187
 188 #ifndef USE_GLD
 189 /* The default MFLIB_SPEC is GNU ld specific.  */
 190 #define MFLIB_SPEC ""
 191 #endif
 192
 193 /* collect2.c can only parse GNU nm -n output.  Solaris nm needs -png to
 194    produce the same format.  */
 195 #define NM_FLAGS "-png"
 196 \f
 197 /* The system headers under Solaris 2 are C++-aware since 2.0.  */
 198 #define NO_IMPLICIT_EXTERN_C
 199
 200 #define STDC_0_IN_SYSTEM_HEADERS 1
 201
 202 /* Support Solaris-specific format checking for cmn_err.  */
 203 #define TARGET_N_FORMAT_TYPES 1
 204 #define TARGET_FORMAT_TYPES solaris_format_types
 205
 206 /* #pragma init and #pragma fini are implemented on top of init and
 207    fini attributes.  */
 208 #define SOLARIS_ATTRIBUTE_TABLE                                         \
 209   { "init",      0, 0, true,  false,  false, NULL, false },             \
 210   { "fini",      0, 0, true,  false,  false, NULL, false }
 211
 212 /* Solaris-specific #pragmas are implemented on top of attributes.  Hook in
 213    the bits from config/sol2.c.  */
 214 #define SUBTARGET_INSERT_ATTRIBUTES solaris_insert_attributes
 215 #define SUBTARGET_ATTRIBUTE_TABLE SOLARIS_ATTRIBUTE_TABLE
 216
 217 /* Allow macro expansion in #pragma pack.  */
 218 #define HANDLE_PRAGMA_PACK_WITH_EXPANSION
 219
 220 #define TARGET_CXX_DECL_MANGLING_CONTEXT solaris_cxx_decl_mangling_context
 221
 222 /* Solaris/x86 as and gas support unquoted section names.  */
 223 #define SECTION_NAME_FORMAT     "%s"
 224
 225 /* This is how to declare the size of a function.  For Solaris, we output
 226    any .init or .fini entries here.  */
 227 #undef ASM_DECLARE_FUNCTION_SIZE
 228 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL)            \
 229   do                                                            \
 230     {                                                           \
 231       if (!flag_inhibit_size_directive)                         \
 232         ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME);                 \
 233       solaris_output_init_fini (FILE, DECL);                    \
 234     }                                                           \
 235   while (0)
 236
 237 /* Solaris as has a bug: a .common directive in .tbss or .tdata section
 238    behaves as .tls_common rather than normal non-TLS .common.  */
 239 #undef  ASM_OUTPUT_ALIGNED_COMMON
 240 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN)              \
 241   do                                                                    \
 242     {                                                                   \
 243       if (TARGET_SUN_TLS                                                \
 244           && in_section                                                 \
 245           && ((in_section->common.flags & SECTION_TLS) == SECTION_TLS)) \
 246         switch_to_section (bss_section);                                \
 247       fprintf ((FILE), "%s", COMMON_ASM_OP);                            \
 248       assemble_name ((FILE), (NAME));                                   \
 249       fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",          \
 250                (SIZE), (ALIGN) / BITS_PER_UNIT);                        \
 251     }                                                                   \
 252   while (0)
 253
 254 #ifndef USE_GAS
 255 #undef TARGET_ASM_ASSEMBLE_VISIBILITY
 256 #define TARGET_ASM_ASSEMBLE_VISIBILITY solaris_assemble_visibility
 257
 258 #define AS_NEEDS_DASH_FOR_PIPED_INPUT
 259
 260 /* The Solaris assembler cannot grok .stabd directives.  */
 261 #undef NO_DBX_BNSYM_ENSYM
 262 #define NO_DBX_BNSYM_ENSYM 1
 263 #endif
 264
 265 #ifndef USE_GLD
 266 /* The Solaris linker doesn't understand constructor priorities.  */
 267 #undef SUPPORTS_INIT_PRIORITY
 268 #define SUPPORTS_INIT_PRIORITY 0
 269 #endif
 270
 271 /* Solaris has an implementation of __enable_execute_stack.  */
 272 #define HAVE_ENABLE_EXECUTE_STACK
 273
 274 /* Static stack checking is supported by means of probes.  */
 275 #define STACK_CHECK_STATIC_BUILTIN 1
 276
 277 #define TARGET_POSIX_IO
 278
 279 extern GTY(()) tree solaris_pending_aligns;
 280 extern GTY(()) tree solaris_pending_inits;
 281 extern GTY(()) tree solaris_pending_finis;