components/developer/illumos-gcc/files/unleashed.h

   1 /* Operating system specific defines to be used when targeting GCC for any
   2    Unleashed
   3    Copyright (C) 2002-2014 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 #define SIG_ATOMIC_TYPE "int"
  22
  23 /* Names to predefine in the preprocessor for this target machine.  */
  24 #define TARGET_OS_CPP_BUILTINS()                        \
  25     do {                                                \
  26         builtin_define_std ("unix");                    \
  27         builtin_define_std ("sun");                     \
  28         builtin_define ("__svr4__");                    \
  29         builtin_define ("__SVR4");                      \
  30         builtin_define ("__unleashed__");               \
  31         builtin_assert ("system=unix");                 \
  32         builtin_assert ("system=svr4");                 \
  33     } while (0)
  34
  35 /* The Solaris linker will not merge a read-only .eh_frame section
  36    with a read-write .eh_frame section.  None of the encodings used
  37    with non-PIC code require runtime relocations.  In 64-bit mode,
  38    since there is no backwards compatibility issue, we use a read-only
  39    section for .eh_frame.  In 32-bit mode, we use a writable .eh_frame
  40    section in order to be compatible with G++ for Solaris x86.  */
  41 #undef EH_TABLES_CAN_BE_READ_ONLY
  42 #define EH_TABLES_CAN_BE_READ_ONLY (TARGET_64BIT)
  43
  44 /* Use --as-needed/-z ignore -lgcc_s for eh support.  */
  45 #ifdef HAVE_LD_AS_NEEDED
  46 #define USE_LD_AS_NEEDED 1
  47 #endif
  48
  49 #undef STARTFILE_SPEC
  50 #define STARTFILE_SPEC "%{!shared:%{p|pg:gcrt1.o%s;:crt1.o%s}} " \
  51         "%{ansi:values-Xc.o%s}%{!ansi:values-Xa.o%s} " \
  52         "crti.o%s crtbegin.o%s"
  53 #undef ENDFILE_SPEC
  54 #define ENDFILE_SPEC "crtend.o%s crtn.o%s"
  55
  56 /* XXX our headers should be fixed to use the same integral types for these  on both 32 and 64 bit */
  57 #undef WCHAR_TYPE
  58 #define WCHAR_TYPE (TARGET_64BIT ? "int" : "long int")
  59 #undef WCHAR_TYPE_SIZE
  60 #define WCHAR_TYPE_SIZE 32
  61 #undef WINT_TYPE
  62 #define WINT_TYPE (TARGET_64BIT ? "int" : "long int")
  63 #undef WINT_TYPE_SIZE
  64 #define WINT_TYPE_SIZE 32
  65
  66 /* sunld spec */
  67 #define LINK_SPEC \
  68         "%{h*} %{YP,*} %{R*} %{shared:-G -dy %{!mimpure-text:-z text}} " \
  69         "%{static:-dn -Bstatic} %{symbolic:-Bsymbolic -G -dy -z text}"
  70
  71 #define STARTFILE_PREFIX_SPEC "%{m32:/lib/i386/ /usr/lib/i386/}%{!m32:/lib/ /lib/amd64/ /usr/lib/ /usr/lib/amd64/}"
  72
  73 #undef LIB_SPEC
  74 #define LIB_SPEC "%{!shared:%{pthread:-lpthread} %{p|pg:-ldl} -lc}"
  75
  76 /* The system headers under Solaris 2 are C++-aware since 2.0.  */
  77 #define NO_IMPLICIT_EXTERN_C
  78
  79 /* Allow macro expansion in #pragma pack.  */
  80 #define HANDLE_PRAGMA_PACK_WITH_EXPANSION 1
  81 #define HANDLE_PRAGMA_PACK_PUSH_POP 1
  82
  83 /* Support Solaris-specific format checking for cmn_err.  */
  84 #define TARGET_N_FORMAT_TYPES 1
  85 #define TARGET_FORMAT_TYPES solaris_format_types
  86 extern GTY(()) tree solaris_pending_aligns;
  87 extern GTY(()) tree solaris_pending_inits;
  88 extern GTY(()) tree solaris_pending_finis;
  89
  90 /* #pragma init and #pragma fini are implemented on top of init and
  91    fini attributes.  */
  92 #define SOLARIS_ATTRIBUTE_TABLE                                         \
  93   { "init",      0, 0, true,  false,  false, NULL },                    \
  94   { "fini",      0, 0, true,  false,  false, NULL }
  95 /* Solaris-specific #pragmas are implemented on top of attributes.  Hook in
  96    the bits from config/sol2.c.  */
  97 #define SUBTARGET_INSERT_ATTRIBUTES solaris_insert_attributes
  98 #define SUBTARGET_ATTRIBUTE_TABLE SOLARIS_ATTRIBUTE_TABLE
  99
 100 /* Register the Solaris-specific #pragma directives.  */
 101 #define REGISTER_SUBTARGET_PRAGMAS() solaris_register_pragmas ()
 102
 103 /* Output a simple call for .init/.fini.  */
 104 #define ASM_OUTPUT_CALL(FILE, FN)                               \
 105   do                                                            \
 106     {                                                           \
 107       fprintf (FILE, "\tcall\t");                               \
 108       print_operand (FILE, XEXP (DECL_RTL (FN), 0), 'P');       \
 109       fprintf (FILE, "\n");                                     \
 110     }                                                           \
 111   while (0)
 112
 113 #define SUBTARGET_OVERRIDE_OPTIONS                              \
 114   do                                                            \
 115     {                                                           \
 116       if (flag_omit_frame_pointer == 2)                         \
 117         flag_omit_frame_pointer = 0;                            \
 118     }                                                           \
 119   while (0)
 120
 121 #undef TARGET_SUBTARGET_DEFAULT
 122 #define TARGET_SUBTARGET_DEFAULT (MASK_80387 | MASK_IEEE_FP     \
 123                                   | MASK_FLOAT_RETURNS)
 124
 125 #define SUBTARGET_OPTIMIZATION_OPTIONS                  \
 126   do                                                    \
 127     {                                                   \
 128       if (optimize >= 1)                                \
 129         target_flags |= MASK_OMIT_LEAF_FRAME_POINTER;   \
 130     }                                                   \
 131   while (0)
 132 #undef SUBTARGET_RETURN_IN_MEMORY
 133 #define SUBTARGET_RETURN_IN_MEMORY(TYPE, FNTYPE) \
 134         ix86_sol10_return_in_memory (TYPE, FNTYPE)
 135
 136 /* This is how to declare the size of a function.  For Solaris, we output
 137    any .init or .fini entries here.  */
 138 #undef ASM_DECLARE_FUNCTION_SIZE
 139 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL)            \
 140   do                                                            \
 141     {                                                           \
 142       if (!flag_inhibit_size_directive)                         \
 143         ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME);                 \
 144       solaris_output_init_fini (FILE, DECL);                    \
 145     }                                                           \
 146   while (0)
 147
 148 /* Only recent versions of Solaris 11 ld properly support hidden .gnu.linkonce
 149    sections, so don't use them.  */
 150 #define USE_HIDDEN_LINKONCE 0
 151
 152 #undef SWITCH_TAKES_ARG
 153 #define SWITCH_TAKES_ARG(CHAR) \
 154   (DEFAULT_SWITCH_TAKES_ARG(CHAR) \
 155    || (CHAR) == 'R' \
 156    || (CHAR) == 'h' \
 157    || (CHAR) == 'z')