gcc/config/netbsd.h

   1 /* Base configuration file for all NetBSD targets.
   2    Copyright (C) 1997-2017 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 3, or (at your option)
   9 any later version.
  10
  11 GCC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING3.  If not see
  18 <http://www.gnu.org/licenses/>.  */
  19
  20 /* TARGET_OS_CPP_BUILTINS() common to all NetBSD targets.  */
  21 #define NETBSD_OS_CPP_BUILTINS_COMMON()         \
  22   do                                            \
  23     {                                           \
  24       builtin_define ("__NetBSD__");            \
  25       builtin_define ("__unix__");              \
  26       builtin_assert ("system=bsd");            \
  27       builtin_assert ("system=unix");           \
  28       builtin_assert ("system=NetBSD");         \
  29     }                                           \
  30   while (0)
  31
  32 /* CPP_SPEC parts common to all NetBSD targets.  */
  33 #define NETBSD_CPP_SPEC                         \
  34   "%{posix:-D_POSIX_SOURCE} \
  35    %{pthread:-D_REENTRANT -D_PTHREADS}"
  36
  37 /* NETBSD_NATIVE is defined when gcc is integrated into the NetBSD
  38    source tree so it can be configured appropriately without using
  39    the GNU configure/build mechanism.  */
  40
  41 #ifdef NETBSD_NATIVE
  42
  43 /* Look for the include files in the system-defined places.  */
  44
  45 #undef GPLUSPLUS_INCLUDE_DIR
  46 #define GPLUSPLUS_INCLUDE_DIR "/usr/include/g++"
  47
  48 #undef GCC_INCLUDE_DIR
  49 #define GCC_INCLUDE_DIR "/usr/include"
  50
  51 #undef INCLUDE_DEFAULTS
  52 #define INCLUDE_DEFAULTS                        \
  53   {                                             \
  54     { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },     \
  55     { GCC_INCLUDE_DIR, "GCC", 0, 0 },           \
  56     { 0, 0, 0, 0 }                              \
  57   }
  58
  59 /* Under NetBSD, the normal location of the compiler back ends is the
  60    /usr/libexec directory.  */
  61
  62 #undef STANDARD_EXEC_PREFIX
  63 #define STANDARD_EXEC_PREFIX            "/usr/libexec/"
  64
  65 /* Under NetBSD, the normal location of the various *crt*.o files is the
  66    /usr/lib directory.  */
  67
  68 #undef STANDARD_STARTFILE_PREFIX
  69 #define STANDARD_STARTFILE_PREFIX       "/usr/lib/"
  70
  71 #endif /* NETBSD_NATIVE */
  72
  73
  74 /* Provide a LIB_SPEC appropriate for NetBSD.  Here we:
  75
  76    1. Select the appropriate set of libs, depending on whether we're
  77       profiling.
  78
  79    2. Include the pthread library if -pthread is specified (only
  80       if threads are enabled).
  81
  82    3. Include the posix library if -posix is specified.
  83
  84    FIXME: Could eliminate the duplication here if we were allowed to
  85    use string concatenation.  */
  86
  87 #define NETBSD_LIB_SPEC         \
  88   "%{pthread:                   \
  89      %{!p:                      \
  90        %{!pg:-lpthread}}        \
  91      %{p:-lpthread_p}           \
  92      %{pg:-lpthread_p}}         \
  93    %{posix:                     \
  94      %{!p:                      \
  95        %{!pg:-lposix}}          \
  96      %{p:-lposix_p}             \
  97      %{pg:-lposix_p}}           \
  98    %{shared:-lc}                \
  99    %{!shared:                   \
 100      %{!symbolic:               \
 101        %{!p:                    \
 102          %{!pg:-lc}}            \
 103        %{p:-lc_p}               \
 104        %{pg:-lc_p}}}"
 105
 106 #undef LIB_SPEC
 107 #define LIB_SPEC NETBSD_LIB_SPEC
 108
 109 /* Provide a LIBGCC_SPEC appropriate for NetBSD.  */
 110
 111 #ifdef NETBSD_NATIVE
 112 #define NETBSD_LIBGCC_SPEC      \
 113   "%{!symbolic:                 \
 114      %{!shared:                 \
 115        %{!p:                    \
 116          %{!pg: -lgcc}}}        \
 117      %{shared: -lgcc_pic}       \
 118      %{p: -lgcc_p}              \
 119      %{pg: -lgcc_p}}"
 120 #else
 121 #define NETBSD_LIBGCC_SPEC "-lgcc"
 122 #endif
 123
 124 #undef LIBGCC_SPEC
 125 #define LIBGCC_SPEC NETBSD_LIBGCC_SPEC
 126
 127 #if defined(HAVE_LD_EH_FRAME_HDR)
 128 #define LINK_EH_SPEC "%{!static|static-pie:--eh-frame-hdr} "
 129 #endif
 130
 131 #undef TARGET_LIBC_HAS_FUNCTION
 132 #define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function
 133
 134 /* When building shared libraries, the initialization and finalization
 135    functions for the library are .init and .fini respectively.  */
 136
 137 #define COLLECT_SHARED_INIT_FUNC(STREAM,FUNC)                           \
 138   do {                                                                  \
 139     fprintf ((STREAM), "void __init() __asm__ (\".init\");");           \
 140     fprintf ((STREAM), "void __init() {\n\t%s();\n}\n", (FUNC));        \
 141   } while (0)
 142
 143 #define COLLECT_SHARED_FINI_FUNC(STREAM,FUNC)                           \
 144   do {                                                                  \
 145     fprintf ((STREAM), "void __fini() __asm__ (\".fini\");");           \
 146     fprintf ((STREAM), "void __fini() {\n\t%s();\n}\n", (FUNC));        \
 147   } while (0)
 148
 149 #undef TARGET_POSIX_IO
 150 #define TARGET_POSIX_IO
 151
 152 /* Don't assume anything about the header files.  */
 153 #undef  NO_IMPLICIT_EXTERN_C
 154 #define NO_IMPLICIT_EXTERN_C    1
 155
 156 /* Define some types that are the same on all NetBSD platforms,
 157    making them agree with <machine/ansi.h>.  */
 158
 159 #undef WCHAR_TYPE
 160 #define WCHAR_TYPE "int"
 161
 162 #undef WCHAR_TYPE_SIZE
 163 #define WCHAR_TYPE_SIZE 32
 164
 165 #undef WINT_TYPE
 166 #define WINT_TYPE "int"
 167
 168 #undef  SUBTARGET_INIT_BUILTINS
 169 #define SUBTARGET_INIT_BUILTINS                                         \
 170   do {                                                                  \
 171     netbsd_patch_builtins ();                                           \
 172   } while(0)