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94e68c3e 1/** @file\r
4cbd2175 2 Long Jump functions.\r
94e68c3e 3\r
4 Copyright (c) 2006, Intel Corporation\r
5 All rights reserved. This program and the accompanying materials\r
6 are licensed and made available under the terms and conditions of the BSD License\r
7 which accompanies this distribution. The full text of the license may be found at\r
8 http://opensource.org/licenses/bsd-license.php\r
9\r
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
12\r
13 Module Name: LongJump.c\r
14\r
15**/\r
16\r
1ea5ca46 17/**\r
18 Worker function that checks ASSERT condition for JumpBuffer\r
19\r
20 Checks ASSERT condition for JumpBuffer.\r
21\r
22 If JumpBuffer is NULL, then ASSERT().\r
23 For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().\r
24\r
25 @param JumpBuffer A pointer to CPU context buffer.\r
26\r
27**/\r
94e68c3e 28VOID\r
4cbd2175 29InternalAssertJumpBuffer (\r
30 IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer\r
31 );\r
32\r
1ea5ca46 33/**\r
34 Restores the CPU context that was saved with SetJump().\r
35\r
36 Restores the CPU context from the buffer specified by JumpBuffer.\r
37 This function never returns to the caller.\r
38 Instead is resumes execution based on the state of JumpBuffer.\r
39\r
40 @param JumpBuffer A pointer to CPU context buffer.\r
41 @param Value The value to return when the SetJump() context is restored.\r
42\r
43**/\r
4cbd2175 44VOID\r
45EFIAPI\r
46InternalLongJump (\r
47 IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer,\r
48 IN UINTN Value\r
94e68c3e 49 );\r
50\r
51/**\r
52 Restores the CPU context that was saved with SetJump().\r
53\r
54 Restores the CPU context from the buffer specified by JumpBuffer.\r
55 This function never returns to the caller.\r
56 Instead is resumes execution based on the state of JumpBuffer.\r
57\r
58 If JumpBuffer is NULL, then ASSERT().\r
1ea5ca46 59 For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().\r
94e68c3e 60 If Value is 0, then ASSERT().\r
61\r
62 @param JumpBuffer A pointer to CPU context buffer.\r
63 @param Value The value to return when the SetJump() context is restored.\r
64\r
65**/\r
66VOID\r
67EFIAPI\r
68LongJump (\r
4cbd2175 69 IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer,\r
70 IN UINTN Value\r
94e68c3e 71 )\r
72{\r
4cbd2175 73 InternalAssertJumpBuffer (JumpBuffer);\r
0ffa1286 74 ASSERT (Value != 0);\r
75\r
4cbd2175 76 InternalLongJump (JumpBuffer, Value);\r
94e68c3e 77}\r