libobjc_entry.c

来自「GCC编译器源代码」· C语言 代码 · 共 56 行

/* GNU Objective C Runtime DLL Entry
   Copyright (C) 1997 Free Software Foundation, Inc.
   Contributed by Scott Christley <[e-mail]>

This file is part of GNU CC.

GNU CC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.

GNU CC is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING.  If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

/* As a special exception, if you link this library with files compiled with
   GCC to produce an executable, this does not cause the resulting executable
   to be covered by the GNU General Public License. This exception does not
   however invalidate any other reasons why the executable file might be
   covered by the GNU General Public License.  */

#include <windows.h>

/*
  DLL entry function for Objective-C Runtime library
  This function gets called everytime a process/thread attaches to DLL
  */
WINBOOL WINAPI DllMain(HANDLE hInst, ULONG ul_reason_for_call,
        LPVOID lpReserved)
{
  switch(ul_reason_for_call)
    {
    case DLL_PROCESS_ATTACH:
      break;
    case DLL_PROCESS_DETACH:
      break;
    case DLL_THREAD_ATTACH:
      break;
    case DLL_THREAD_DETACH:
      break;
    }
  return TRUE;
}

/*
  This section terminates the list of imports under GCC. If you do not
  include this then you will have problems when linking with DLLs.
  */
asm (".section .idata$3\n" ".long 0,0,0,0,0,0,0,0");