contrib/gcc/config/i386/win-nt.h

   1 /* Operating system specific defines to be used when targeting GCC for
   2    Windows NT 3.x on an i386.
   3    Copyright (C) 1994, 1995 Free Software Foundation, Inc.
   4    Contributed by Douglas B. Rupp (drupp@cs.washington.edu).
   5
   6 This file is part of GNU CC.
   7
   8 GNU CC is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2, or (at your option)
  11 any later version.
  12
  13 GNU CC is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GNU CC; see the file COPYING.  If not, write to
  20 the Free Software Foundation, 59 Temple Place - Suite 330,
  21 Boston, MA 02111-1307, USA. */
  22
  23 #define YES_UNDERSCORES
  24
  25 #include "i386/gas.h"
  26
  27 #ifdef CPP_PREDEFINES
  28 #undef CPP_PREDEFINES
  29 #endif
  30 #define CPP_PREDEFINES "-Dunix -Di386 -DWIN32 -D_WIN32 \
  31   -DWINNT -D_M_IX86=300 -D_X86_=1 -D__STDC__=0 -DALMOST_STDC -D_MSC_VER=800 \
  32   -D__stdcall=__attribute__((__stdcall__)) \
  33   -D__cdecl=__attribute__((__cdecl__)) \
  34   -D_cdecl=__attribute__((__cdecl__)) \
  35   -Asystem(unix) -Asystem(winnt) -Acpu(i386) -Amachine(i386)"
  36
  37 #define SIZE_TYPE "unsigned int"
  38 #define PTRDIFF_TYPE "int"
  39 #define WCHAR_UNSIGNED 1
  40 #define WCHAR_TYPE_SIZE 16
  41 #define WCHAR_TYPE "short unsigned int"
  42 #undef LONG_DOUBLE_TYPE_SIZE
  43 #define LONG_DOUBLE_TYPE_SIZE 64
  44 #define HAVE_ATEXIT 1
  45
  46 #undef EXTRA_SECTIONS
  47 #define EXTRA_SECTIONS in_ctor, in_dtor
  48
  49 #undef EXTRA_SECTION_FUNCTIONS
  50 #define EXTRA_SECTION_FUNCTIONS                                 \
  51   CTOR_SECTION_FUNCTION                                         \
  52   DTOR_SECTION_FUNCTION
  53
  54 #define CTOR_SECTION_FUNCTION                                   \
  55 void                                                            \
  56 ctor_section ()                                                 \
  57 {                                                               \
  58   if (in_section != in_ctor)                                    \
  59     {                                                           \
  60       fprintf (asm_out_file, "\t.section .ctor\n");             \
  61       in_section = in_ctor;                                     \
  62     }                                                           \
  63 }
  64
  65 #define DTOR_SECTION_FUNCTION                                   \
  66 void                                                            \
  67 dtor_section ()                                                 \
  68 {                                                               \
  69   if (in_section != in_dtor)                                    \
  70     {                                                           \
  71       fprintf (asm_out_file, "\t.section .dtor\n");             \
  72       in_section = in_dtor;                                     \
  73     }                                                           \
  74 }
  75
  76 #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME)       \
  77   do {                                          \
  78     ctor_section ();                            \
  79     fprintf (FILE, "%s\t", ASM_LONG);           \
  80     assemble_name (FILE, NAME);                 \
  81     fprintf (FILE, "\n");                       \
  82   } while (0)
  83
  84 #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME)        \
  85   do {                                          \
  86     dtor_section ();                            \
  87     fprintf (FILE, "%s\t", ASM_LONG);           \
  88     assemble_name (FILE, NAME);                 \
  89     fprintf (FILE, "\n");                       \
  90   } while (0)
  91
  92 /* Define this macro if references to a symbol must be treated
  93    differently depending on something about the variable or
  94    function named by the symbol (such as what section it is in).
  95
  96    On i386, if using PIC, mark a SYMBOL_REF for a non-global symbol
  97    so that we may access it directly in the GOT.
  98
  99    On i386 running Windows NT, modify the assembler name with a suffix
 100    consisting of an atsign (@) followed by string of digits that represents
 101    the number of bytes of arguments passed to the function, if it has the
 102    attribute STDCALL. */
 103
 104 #ifdef ENCODE_SECTION_INFO
 105 #undef ENCODE_SECTION_INFO
 106 #define ENCODE_SECTION_INFO(DECL)                                       \
 107 do                                                                      \
 108   {                                                                     \
 109     if (flag_pic)                                                       \
 110       {                                                                 \
 111         rtx rtl = (TREE_CODE_CLASS (TREE_CODE (DECL)) != 'd'            \
 112                    ? TREE_CST_RTL (DECL) : DECL_RTL (DECL));            \
 113         SYMBOL_REF_FLAG (XEXP (rtl, 0))                                 \
 114           = (TREE_CODE_CLASS (TREE_CODE (DECL)) != 'd'                  \
 115              || ! TREE_PUBLIC (DECL));                                  \
 116       }                                                                 \
 117     if (TREE_CODE (DECL) == FUNCTION_DECL)                              \
 118       if (lookup_attribute ("stdcall",                                  \
 119                             TYPE_ATTRIBUTES (TREE_TYPE (DECL))))        \
 120         XEXP (DECL_RTL (DECL), 0) =                                     \
 121           gen_rtx (SYMBOL_REF, Pmode, gen_stdcall_suffix (DECL));       \
 122   }                                                                     \
 123 while (0)
 124 #endif
 125
 126 /* The global __fltused is necessary to cause the printf/scanf routines
 127    for outputting/inputting floating point numbers to be loaded.  Since this
 128    is kind of hard to detect, we just do it all the time. */
 129
 130 #ifdef ASM_FILE_START
 131 #undef ASM_FILE_START
 132 #endif
 133 #define ASM_FILE_START(FILE) \
 134   do {  output_file_directive (FILE, main_input_filename);      \
 135         fprintf (FILE, ".global\t__fltused\n");                 \
 136   } while (0)
 137
 138 /* if the switch "-mwindows" is passed to ld, then specify to the Microsoft
 139    linker the proper switches and libraries to build a graphical program */
 140
 141 #undef LIB_SPEC
 142 #define LIB_SPEC "%{mwindows:-subsystem windows -e _WinMainCRTStartup \
 143   USER32.LIB%s GDI32.LIB%s COMDLG32.LIB%s WINSPOOL.LIB%s} \
 144  %{!mwindows:-subsystem console -e _mainCRTStartup} \
 145  %{mcrtmt:LIBCMT.LIB%s KERNEL32.LIB%s ADVAPI32.LIB%s} \
 146  %{!mcrtmt:LIBC.LIB%s KERNEL32.LIB%s ADVAPI32.LIB%s} \
 147  %{v}"
 148
 149 #include "winnt/win-nt.h"
 150