dlls/wow64win/syscall.c

   1 /*
   2  * WoW64 syscall wrapping
   3  *
   4  * Copyright 2021 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <stdarg.h>
  22
  23 #include "ntstatus.h"
  24 #define WIN32_NO_STATUS
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winnt.h"
  28 #include "winternl.h"
  29 #include "wow64win_private.h"
  30
  31 static void * const win32_syscalls[] =
  32 {
  33 #define SYSCALL_ENTRY(func) wow64_ ## func,
  34     ALL_WIN32_SYSCALLS
  35 #undef SYSCALL_ENTRY
  36 };
  37
  38 static const char * const win32_syscall_names[] =
  39 {
  40 #define SYSCALL_ENTRY(func) #func,
  41     ALL_WIN32_SYSCALLS
  42 #undef SYSCALL_ENTRY
  43 };
  44
  45 SYSTEM_SERVICE_TABLE sdwhwin32 =
  46 {
  47     (ULONG_PTR *)win32_syscalls,
  48     (ULONG_PTR *)win32_syscall_names,
  49     ARRAY_SIZE(win32_syscalls),
  50     NULL
  51 };
  52
  53
  54 BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, void *reserved )
  55 {
  56     if (reason != DLL_PROCESS_ATTACH) return TRUE;
  57     LdrDisableThreadCalloutsForDll( inst );
  58     NtCurrentTeb()->Peb->KernelCallbackTable = user_callbacks;
  59     return TRUE;
  60 }