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, 2007, 2010
   4    Free Software Foundation, Inc.
   5    Donn Terry, Softway Systems, Inc. (donn@softway.com)
   6    Modified from code
   7       Contributed by Douglas B. Rupp (drupp@cs.washington.edu).
   8
   9 This file is part of GCC.
  10
  11 GCC is free software; you can redistribute it and/or modify
  12 it under the terms of the GNU General Public License as published by
  13 the Free Software Foundation; either version 3, or (at your option)
  14 any later version.
  15
  16 GCC is distributed in the hope that it will be useful,
  17 but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 GNU General Public License for more details.
  20
  21 You should have received a copy of the GNU General Public License
  22 along with GCC; see the file COPYING3.  If not see
  23 <http://www.gnu.org/licenses/>.  */
  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
  66
  67 #define STDC_0_IN_SYSTEM_HEADERS 1
  68
  69 #define HANDLE_SYSV_PRAGMA 1
  70 #undef HANDLE_PRAGMA_WEAK  /* until the link format can handle it */
  71
  72 /* Names to predefine in the preprocessor for this target machine.  */
  73
  74 #define DBX_DEBUGGING_INFO 1
  75 #define SDB_DEBUGGING_INFO 1
  76 #undef PREFERRED_DEBUGGING_TYPE
  77 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
  78
  79
  80 /* TARGET_DEFAULT from configure */
  81
  82 #undef WCHAR_TYPE
  83 #undef WCHAR_TYPE_SIZE
  84 #define WCHAR_TYPE "short unsigned int"
  85 #define WCHAR_TYPE_SIZE 16
  86
  87 /* Our strategy for finding global constructors is a bit different, although
  88    not a lot.  */
  89 #define DO_GLOBAL_CTORS_BODY                                            \
  90 do {                                                                    \
  91   int i;                                                                \
  92   unsigned long nptrs;                                                  \
  93   func_ptr *p;                                                          \
  94   asm(                                                                  \
  95        "     .section .ctor_head, \"rw\"\n"                             \
  96        "1:\n"                                                           \
  97        "     .text \n"                                                  \
  98        ASM_LOAD_ADDR(1b,%0)                                             \
  99        : "=r" (p) : : "cc");                                            \
 100   for (nptrs = 0; p[nptrs] != 0; nptrs++);                              \
 101   for (i = nptrs-1; i >= 0; i--)                                        \
 102     p[i] ();                                                            \
 103 } while (0)
 104
 105 #define DO_GLOBAL_DTORS_BODY                                            \
 106 do {                                                                    \
 107   func_ptr *p;                                                          \
 108   asm(                                                                  \
 109        "     .section .dtor_head, \"rw\"\n"                             \
 110        "1:\n"                                                           \
 111        "     .text \n"                                                  \
 112        ASM_LOAD_ADDR(1b,%0)                                             \
 113        : "=r" (p) : : "cc");                                            \
 114   while (*p)                                                            \
 115     {                                                                   \
 116       p++;                                                              \
 117       (*(p-1)) ();                                                      \
 118     }                                                                   \
 119 } while (0)