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e1f414b6 | 1 | #------------------------------------------------------------------------------\r |
2 | #\r | |
1f86b07d | 3 | # Copyright (c) 2006 - 2008, Intel Corporation\r |
e1f414b6 | 4 | # All rights reserved. This program and the accompanying materials\r |
5 | # are licensed and made available under the terms and conditions of the BSD License\r | |
6 | # which accompanies this distribution. The full text of the license may be found at\r | |
7 | # http://opensource.org/licenses/bsd-license.php\r | |
8 | #\r | |
9 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
10 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
11 | #\r | |
12 | # Module Name:\r | |
13 | #\r | |
1f86b07d | 14 | # SetJump.S\r |
e1f414b6 | 15 | #\r |
16 | # Abstract:\r | |
17 | #\r | |
18 | # Implementation of SetJump() on IA-32.\r | |
19 | #\r | |
20 | #------------------------------------------------------------------------------\r | |
21 | \r | |
132f41f0 | 22 | ASM_GLOBAL ASM_PFX(SetJump), ASM_PFX(InternalAssertJumpBuffer)\r |
e1f414b6 | 23 | \r |
24 | #------------------------------------------------------------------------------\r | |
25 | # UINTN\r | |
26 | # EFIAPI\r | |
27 | # SetJump (\r | |
28 | # OUT BASE_LIBRARY_JUMP_BUFFER *JumpBuffer\r | |
29 | # );\r | |
30 | #------------------------------------------------------------------------------\r | |
31 | ASM_PFX(SetJump):\r | |
32 | pushl 0x4(%esp)\r | |
57246fe0 | 33 | call ASM_PFX(InternalAssertJumpBuffer) # To validate JumpBuffer\r |
e1f414b6 | 34 | pop %ecx\r |
57246fe0 | 35 | pop %ecx # ecx <- return address\r |
e1f414b6 | 36 | movl (%esp), %edx\r |
37 | movl %ebx, (%edx)\r | |
38 | movl %esi, 4(%edx)\r | |
39 | movl %edi, 8(%edx)\r | |
40 | movl %ebp, 12(%edx)\r | |
41 | movl %esp, 16(%edx)\r | |
57246fe0 | 42 | movl %ecx, 20(%edx) # eip value to restore in LongJump\r |
e1f414b6 | 43 | xorl %eax, %eax\r |
44 | jmp *%ecx\r |