reactos/lib/sdk/crt/startup/mscmain.c

   1 /**
   2  * This file has no copyright assigned and is placed in the Public Domain.
   3  * This file is part of the w64 mingw-runtime package.
   4  * No warranty is given; refer to the file DISCLAIMER.PD within this package.
   5  */
   6
   7 #include <windows.h>
   8 #include <stdlib.h>
   9 #include <stdio.h>
  10 #include <stdarg.h>
  11 #include <rtcapi.h>
  12 #include <assert.h>
  13 #include <internal.h>
  14
  15 #if defined(_M_IX86)
  16 #pragma comment(linker, "/alternatename:__RTC_Initialize=__RTC_NoInitialize")
  17 #elif defined(_M_IA64) || defined(_M_AMD64) || defined(_M_ARM)
  18 #pragma comment(linker, "/alternatename:_RTC_Initialize=_RTC_NoInitialize")
  19 #else
  20 #error Unsupported platform
  21 #endif
  22
  23 /*
  24  * Initializer / constructor handling
  25  * see http://msdn.microsoft.com/en-us/library/bb918180.aspx
  26  * Destructors are registered from the initializers using atexit()
  27  */
  28
  29 extern _PVFV __xi_a[];
  30 extern _PVFV __xi_z[];
  31 extern _PVFV __xc_a[];
  32 extern _PVFV __xc_z[];
  33
  34 static
  35 void
  36 __do_xtors(
  37     _PVFV *start,
  38     _PVFV *end)
  39 {
  40     _PVFV *current;
  41     for (current = start; current < end; current++)
  42     {
  43         if (*current != NULL)
  44             (*current)();
  45     }
  46 }
  47
  48 void _pei386_runtime_relocator(void)
  49 {
  50 }
  51
  52 int __mingw_init_ehandler(void)
  53 {
  54     /* Nothing to do */
  55     return 1;
  56 }
  57
  58 void
  59 __do_global_ctors(void)
  60 {
  61     __do_xtors(__xi_a, __xi_z);
  62     __do_xtors(__xc_a, __xc_z);
  63 }
  64
  65 BOOL
  66 WINAPI
  67 _CRT_INIT0(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpReserved)
  68 {
  69     return TRUE;
  70 }
  71
  72 int
  73 __cdecl
  74 Catch_RTC_Failure(
  75     int errType,
  76     const wchar_t *file,
  77     int line,
  78     const wchar_t *module,
  79     const wchar_t *format,
  80     ...)
  81 {
  82     /* FIXME: better failure routine */
  83     __debugbreak();
  84     return 0;
  85 }
  86
  87 extern
  88 void
  89 __cdecl
  90 _RTC_NoInitialize(void)
  91 {
  92     /* Do nothing, if RunTmChk.lib is not pulled in */
  93 }
  94
  95 _RTC_error_fnW
  96 __cdecl
  97 _CRT_RTC_INITW(
  98     void *_Res0,
  99     void **_Res1,
 100     int _Res2,
 101     int _Res3,
 102     int _Res4)
 103 {
 104     return &Catch_RTC_Failure;
 105 }
 106
 107 static int initialized = 0;
 108
 109 void
 110 __main(void)
 111 {
 112     if (!initialized)
 113     {
 114         initialized = 1;
 115
 116         _RTC_Initialize();
 117
 118         __do_global_ctors ();
 119     }
 120 }
 121
 122