gcc/config/interix.h

   1 /* Operating system specific defines to be used when targeting GCC for
   2    Interix
   3    Copyright (C) 1994, 1995, 1999, 2002, 2004 Free Software Foundation, Inc.
   4    Donn Terry, Softway Systems, Inc. (donn@softway.com)
   5    Modified from code
   6       Contributed by Douglas B. Rupp (drupp@cs.washington.edu).
   7
   8 This file is part of GCC.
   9
  10 GCC is free software; you can redistribute it and/or modify
  11 it under the terms of the GNU General Public License as published by
  12 the Free Software Foundation; either version 2, or (at your option)
  13 any later version.
  14
  15 GCC is distributed in the hope that it will be useful,
  16 but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 GNU General Public License for more details.
  19
  20 You should have received a copy of the GNU General Public License
  21 along with GCC; see the file COPYING.  If not, write to
  22 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  23 Boston, MA 02110-1301, USA.  */
  24
  25 /* POSIX/Uni-thread only for now.  Look at the winnt version
  26 for windows/multi thread */
  27
  28 /* We need multiple -lc -lcpsx because they mutually refer;
  29    that should go away someday */
  30
  31 #undef LIB_SPEC
  32 #define LIB_SPEC "\
  33  %{!shared:%{!dynamic:-lc -lcpsx -lc -lcpsx %$INTERIX_ROOT/usr/lib/psxdll.a \
  34  %$INTERIX_ROOT/usr/lib/psxdll2.a \
  35  }} \
  36  %{!G:%{!dynamic:-lc -lcpsx -lc -lcpsx %$INTERIX_ROOT/usr/lib/psxdll.a \
  37  %$INTERIX_ROOT/usr/lib/psxdll2.a \
  38  }} \
  39  %{dynamic:-lc %$INTERIX_ROOT/usr/lib/psxdll.a \
  40  %$INTERIX_ROOT/usr/lib/psxdll2.a \
  41  } \
  42  %{v}"
  43
  44 #undef LINK_SPEC
  45 #define LINK_SPEC "%{!shared:-stack 0x400000,0x10000} \
  46                    -subsystem posix \
  47                    %{g} \
  48                    %{dynamic:-Bdynamic} \
  49                    %{static:-Bstatic} \
  50                    %{shared:--shared -Bdynamic} \
  51                    %{G:--shared -Bdynamic} \
  52                    %{symbolic:--shared -Bsymbolic -Bdynamic} \
  53                    %{soname*:--soname %*} \
  54                    %{rpath*:--rpath %*} \
  55                    "
  56
  57 #undef STARTFILE_SPEC
  58 #define STARTFILE_SPEC  \
  59   "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}} %{shared:crti%O%s}"
  60
  61 #undef WORD_SWITCH_TAKES_ARG
  62 #define WORD_SWITCH_TAKES_ARG(STR)                                      \
  63  ((DEFAULT_WORD_SWITCH_TAKES_ARG (STR)                                  \
  64  || !strcmp(STR, "rpath"))                                              \
  65   && strcmp (STR, "Tdata") && strcmp (STR, "Ttext")                     \
  66   && strcmp (STR, "Tbss"))
  67
  68
  69 #define STDC_0_IN_SYSTEM_HEADERS 1
  70
  71 #define HANDLE_SYSV_PRAGMA 1
  72 #undef HANDLE_PRAGMA_WEAK  /* until the link format can handle it */
  73
  74 /* Names to predefine in the preprocessor for this target machine.  */
  75
  76 #define DBX_DEBUGGING_INFO 1
  77 #define SDB_DEBUGGING_INFO 1
  78 #undef PREFERRED_DEBUGGING_TYPE
  79 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
  80
  81
  82 /* TARGET_DEFAULT from configure */
  83
  84 #undef WCHAR_TYPE
  85 #undef WCHAR_TYPE_SIZE
  86 #define WCHAR_TYPE "short unsigned int"
  87 #define WCHAR_TYPE_SIZE 16
  88
  89 /* Our strategy for finding global constructors is a bit different, although
  90    not a lot.  */
  91 #define DO_GLOBAL_CTORS_BODY                                            \
  92 do {                                                                    \
  93   int i;                                                                \
  94   unsigned long nptrs;                                                  \
  95   func_ptr *p;                                                          \
  96   asm(                                                                  \
  97        "     .section .ctor_head, \"rw\"\n"                             \
  98        "1:\n"                                                           \
  99        "     .text \n"                                                  \
 100        ASM_LOAD_ADDR(1b,%0)                                             \
 101        : "=r" (p) : : "cc");                                            \
 102   for (nptrs = 0; p[nptrs] != 0; nptrs++);                              \
 103   for (i = nptrs-1; i >= 0; i--)                                        \
 104     p[i] ();                                                            \
 105 } while (0)
 106
 107 #define DO_GLOBAL_DTORS_BODY                                            \
 108 do {                                                                    \
 109   func_ptr *p;                                                          \
 110   asm(                                                                  \
 111        "     .section .dtor_head, \"rw\"\n"                             \
 112        "1:\n"                                                           \
 113        "     .text \n"                                                  \
 114        ASM_LOAD_ADDR(1b,%0)                                             \
 115        : "=r" (p) : : "cc");                                            \
 116   while (*p)                                                            \
 117     {                                                                   \
 118       p++;                                                              \
 119       (*(p-1)) ();                                                      \
 120     }                                                                   \
 121 } while (0)