external/gpl3/gcc/files/minix-spec.h

   1 /* Base configuration file for all FreeBSD targets.
   2    Copyright (C) 1999, 2000, 2001, 2004, 2005 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 2, 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 COPYING.  If not, write to
  18 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  19 Boston, MA 02110-1301, USA.  */
  20
  21 /* Common MINIX configuration.
  22    All MINIX architectures should include this file, which will specify
  23    their commonalities.
  24 */
  25
  26 /* In case we need to know.  */
  27 #define USING_CONFIG_MINIX_SPEC 1
  28
  29 /* This defines which switch letters take arguments.  On FreeBSD, most of
  30    the normal cases (defined in gcc.c) apply, and we also have -h* and
  31    -z* options (for the linker) (coming from SVR4).
  32    We also have -R (alias --rpath), no -z, --soname (-h), --assert etc.  */
  33
  34 #define MINIX_SWITCH_TAKES_ARG(CHAR)                                    \
  35   (DEFAULT_SWITCH_TAKES_ARG (CHAR)                                      \
  36     || (CHAR) == 'h'                                                    \
  37     || (CHAR) == 'z' /* ignored by ld */                                \
  38     || (CHAR) == 'R')
  39
  40 /* This defines which multi-letter switches take arguments.  */
  41
  42 #define MINIX_WORD_SWITCH_TAKES_ARG(STR)                                        \
  43   (DEFAULT_WORD_SWITCH_TAKES_ARG (STR)                                  \
  44    || !strcmp ((STR), "rpath") || !strcmp ((STR), "rpath-link")         \
  45    || !strcmp ((STR), "soname") || !strcmp ((STR), "defsym")            \
  46    || !strcmp ((STR), "assert") || !strcmp ((STR), "dynamic-linker"))
  47
  48 #define MINIX_TARGET_OS_CPP_BUILTINS()                                  \
  49   do                                                                    \
  50     {                                                                   \
  51                 builtin_define ("__minix");                             \
  52                 MINIX_TARGET_CPU_CPP_BUILTINS();                        \
  53     }                                                                   \
  54   while (0)
  55
  56 /* Define the default MINIX-specific per-CPU hook code.  */
  57 #define MINIX_TARGET_CPU_CPP_BUILTINS() do {} while (0)
  58
  59 /* Provide a CPP_SPEC appropriate for MINIX.  We just deal with the GCC
  60    option `-posix', and PIC issues.  */
  61
  62 #define MINIX_CPP_SPEC "                                                        \
  63   %(cpp_cpu)                                                            \
  64   %(cpp_arch)                                                           \
  65   %{posix:-D_POSIX_SOURCE}"
  66
  67 /* Provide a STARTFILE_SPEC appropriate for MINIX.  Here we add
  68    the magical crtbegin.o file (see crtstuff.c) which provides part
  69         of the support for getting C++ file-scope static object constructed
  70         before entering `main'.  */
  71
  72 #define MINIX_STARTFILE_SPEC \
  73   "%{!shared: \
  74      %{pg:gcrt0%O%s} %{!pg:%{p:gcrt0%O%s} \
  75                        %{!p:%{profile:gcrt0%O%s} \
  76                          %{!profile:crt0%O%s}}}} \
  77    crti%O%s %{!shared:crtbegin%O%s} %{shared:crtbeginS%O%s}"
  78
  79 /* Provide a ENDFILE_SPEC appropriate for MINIX.  Here we tack on
  80    the magical crtend.o file (see crtstuff.c) which provides part of
  81         the support for getting C++ file-scope static object constructed
  82         before entering `main', followed by a normal "finalizer" file,
  83         `crtn.o'.  */
  84
  85 #define MINIX_ENDFILE_SPEC \
  86   "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
  87
  88 /* Provide a LIB_SPEC appropriate for MINIX.  Just select the appropriate
  89    libc, depending on whether we're doing profiling or need threads support.
  90    (similar to the default, except no -lg, and no -p).  */
  91
  92 #define MINIX_LIB_SPEC "                                                        \
  93   %{pthread: %eThe -pthread option is only supported on MINIX when gcc \
  94 is built with the --enable-threads configure-time option.}              \
  95   %{!shared:                                                            \
  96     %{!pg: -lc}                                                         \
  97     %{pg:  -lc_p}                                                       \
  98   }"
  99
 100 /* Provide a LINK_SPEC appropriate for MINIX.  Here we provide support
 101    for the special GCC options -static and -shared, which allow us to
 102    link things in one of these three modes by applying the appropriate
 103    combinations of options at link-time. We like to support here for
 104    as many of the other GNU linker options as possible. But I don't
 105    have the time to search for those flags. I am sure how to add
 106    support for -soname shared_object_name. H.J.
 107
 108    I took out %{v:%{!V:-V}}. It is too much :-(. They can use
 109    -Wl,-V.
 110
 111    When the -shared link option is used a final link is not being
 112    done.  */
 113
 114 #define MINIX_LINK_SPEC "                                                       \
 115   %{p:%nconsider using `-pg' instead of `-p' with gprof(1) }            \
 116   %{v:-V}                                                               \
 117   %{assert*} %{R*} %{rpath*} %{defsym*}                                 \
 118   %{shared:-Bshareable %{h*} %{soname*}}                                \
 119   %{!shared:                                                            \
 120     %{!static:                                                          \
 121       %{rdynamic:-export-dynamic}                                       \
 122       %{!dynamic-linker:-dynamic-linker %(minix_dynamic_linker) }}      \
 123     %{static:-Bstatic}}                                                 \
 124   %{symbolic:-Bsymbolic}"
 125
 126
 127 /* Under MINIX, just like on NetBSD, the normal location of the various
 128  *    *crt*.o files is the /usr/lib directory.  */
 129
 130 #undef STANDARD_STARTFILE_PREFIX
 131 #define STANDARD_STARTFILE_PREFIX       "/usr/lib/"
 132 #undef STANDARD_STARTFILE_PREFIX_1
 133 #define STANDARD_STARTFILE_PREFIX_1     "/usr/lib/"
 134
 135 #define MINIX_DYNAMIC_LINKER "/libexec/ld-elf.so.1"
 136
 137 #define MINIX_SUBTARGET_EXTRA_SPECS \
 138   { "minix_dynamic_linker", MINIX_DYNAMIC_LINKER }