MdePkg/Library/BaseLib/Ia32/SetJump.c

   1 /** @file
   2   Implementation of SetJump() on IA-32.
   3
   4   Copyright (c) 2006 - 2007, Intel Corporation<BR>
   5   All rights reserved. This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 //
  16 // Include common header file for this module.
  17 //
  18 #include <BaseLibInternals.h>
  19
  20
  21 VOID
  22 EFIAPI
  23 InternalAssertJumpBuffer (
  24   IN      BASE_LIBRARY_JUMP_BUFFER  *JumpBuffer
  25   );
  26
  27 _declspec (naked)
  28 UINTN
  29 EFIAPI
  30 SetJump (
  31   OUT     BASE_LIBRARY_JUMP_BUFFER  *JumpBuffer
  32   )
  33 {
  34   _asm {
  35     push    [esp + 4]
  36     call    InternalAssertJumpBuffer
  37     pop     ecx
  38     pop     ecx
  39     mov     edx, [esp]
  40     mov     [edx], ebx
  41     mov     [edx + 4], esi
  42     mov     [edx + 8], edi
  43     mov     [edx + 12], ebp
  44     mov     [edx + 16], esp
  45     mov     [edx + 20], ecx
  46     xor     eax, eax
  47     jmp     ecx
  48   }
  49 }
  50