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 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, 59 Temple Place - Suite 330,
  23 Boston, MA 02111-1307, USA.  */
  24
  25 #ifndef TARGET_MEM_FUNCTIONS
  26 #define TARGET_MEM_FUNCTIONS
  27 #endif
  28
  29 /* POSIX/Uni-thread only for now.  Look at the winnt version
  30 for windows/multi thread */
  31
  32 /* We need multiple -lc -lcpsx because they mutually refer;
  33    that should go away someday */
  34
  35 #undef LIB_SPEC
  36 #define LIB_SPEC "\
  37  %{!shared:%{!dynamic:-lc -lcpsx -lc -lcpsx %$INTERIX_ROOT/usr/lib/psxdll.a \
  38  %$INTERIX_ROOT/usr/lib/psxdll2.a \
  39  }} \
  40  %{!G:%{!dynamic:-lc -lcpsx -lc -lcpsx %$INTERIX_ROOT/usr/lib/psxdll.a \
  41  %$INTERIX_ROOT/usr/lib/psxdll2.a \
  42  }} \
  43  %{dynamic:-lc %$INTERIX_ROOT/usr/lib/psxdll.a \
  44  %$INTERIX_ROOT/usr/lib/psxdll2.a \
  45  } \
  46  %{v}"
  47
  48 #undef LINK_SPEC
  49 #define LINK_SPEC "%{!shared:-stack 0x400000,0x10000} \
  50                    -subsystem posix \
  51                    %{g} \
  52                    %{dynamic:-Bdynamic} \
  53                    %{static:-Bstatic} \
  54                    %{shared:--shared -Bdynamic} \
  55                    %{G:--shared -Bdynamic} \
  56                    %{symbolic:--shared -Bsymbolic -Bdynamic} \
  57                    %{soname*:--soname %*} \
  58                    %{rpath*:--rpath %*} \
  59                    "
  60
  61 #undef STARTFILE_SPEC
  62 #define STARTFILE_SPEC  \
  63   "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}} %{shared:crti%O%s}"
  64
  65 #undef WORD_SWITCH_TAKES_ARG
  66 #define WORD_SWITCH_TAKES_ARG(STR)                                      \
  67  ((DEFAULT_WORD_SWITCH_TAKES_ARG (STR)                                  \
  68  || !strcmp(STR, "rpath"))                                              \
  69   && strcmp (STR, "Tdata") && strcmp (STR, "Ttext")                     \
  70   && strcmp (STR, "Tbss"))
  71
  72
  73 #define STDC_0_IN_SYSTEM_HEADERS 1
  74
  75 #define HANDLE_SYSV_PRAGMA 1
  76 #undef HANDLE_PRAGMA_WEAK  /* until the link format can handle it */
  77
  78 /* Names to predefine in the preprocessor for this target machine.  */
  79
  80 #define DBX_DEBUGGING_INFO 1
  81 #define SDB_DEBUGGING_INFO 1
  82 #undef PREFERRED_DEBUGGING_TYPE
  83 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
  84
  85
  86 /* TARGET_DEFAULT from configure */
  87
  88 #undef WCHAR_TYPE
  89 #undef WCHAR_TYPE_SIZE
  90 #define WCHAR_TYPE "short unsigned int"
  91 #define WCHAR_TYPE_SIZE 16
  92
  93 /* Our strategy for finding global constructors is a bit different, although
  94    not a lot.  */
  95 #define DO_GLOBAL_CTORS_BODY                                            \
  96 do {                                                                    \
  97   int i;                                                                \
  98   unsigned long nptrs;                                                  \
  99   func_ptr *p;                                                          \
 100   asm(                                                                  \
 101        "     .section .ctor_head, \"rw\"\n"                             \
 102        "1:\n"                                                           \
 103        "     .text \n"                                                  \
 104        ASM_LOAD_ADDR(1b,%0)                                             \
 105        : "=r" (p) : : "cc");                                            \
 106   for (nptrs = 0; p[nptrs] != 0; nptrs++);                              \
 107   for (i = nptrs-1; i >= 0; i--)                                        \
 108     p[i] ();                                                            \
 109 } while (0)
 110
 111 #define DO_GLOBAL_DTORS_BODY                                            \
 112 do {                                                                    \
 113   func_ptr *p;                                                          \
 114   asm(                                                                  \
 115        "     .section .dtor_head, \"rw\"\n"                             \
 116        "1:\n"                                                           \
 117        "     .text \n"                                                  \
 118        ASM_LOAD_ADDR(1b,%0)                                             \
 119        : "=r" (p) : : "cc");                                            \
 120   while (*p)                                                            \
 121     {                                                                   \
 122       p++;                                                              \
 123       (*(p-1)) ();                                                      \
 124     }                                                                   \
 125 } while (0)