MdePkg/Library/BaseLib/X64/SetJump.S

   1 #------------------------------------------------------------------------------
   2 #
   3 # Copyright (c) 2006 - 2008, Intel Corporation
   4 # All rights reserved. This program and the accompanying materials
   5 # are licensed and made available under the terms and conditions of the BSD License
   6 # which accompanies this distribution.  The full text of the license may be found at
   7 # http://opensource.org/licenses/bsd-license.php
   8 #
   9 # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11 #
  12 # Module Name:
  13 #
  14 #   SetJump.S
  15 #
  16 # Abstract:
  17 #
  18 #   Implementation of SetJump() on x86_64
  19 #
  20 #------------------------------------------------------------------------------
  21
  22 ASM_GLOBAL ASM_PFX(SetJump)
  23 ASM_PFX(SetJump):
  24     push   %rcx
  25     add    $0xffffffffffffffe0,%rsp
  26     call   ASM_PFX(InternalAssertJumpBuffer)
  27     add    $0x20,%rsp
  28     pop    %rcx
  29     pop    %rdx
  30     mov    %rbx,(%rcx)
  31     mov    %rsp,0x8(%rcx)
  32     mov    %rbp,0x10(%rcx)
  33     mov    %rdi,0x18(%rcx)
  34     mov    %rsi,0x20(%rcx)
  35     mov    %r12,0x28(%rcx)
  36     mov    %r13,0x30(%rcx)
  37     mov    %r14,0x38(%rcx)
  38     mov    %r15,0x40(%rcx)
  39     mov    %rdx,0x48(%rcx)
  40     xor    %rax,%rax
  41     jmpq   *%rdx