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1 | /** @file\r | |
2 | Implementation of SetJump() and LongJump() on EBC.\r | |
3 | \r | |
4 | SetJump() and LongJump() are not currently supported for the EBC processor type.\r | |
5 | Implementation for EBC just returns 0 for SetJump(), and ASSERT() for LongJump().\r | |
6 | \r | |
7 | Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r | |
8 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
9 | \r | |
10 | **/\r | |
11 | \r | |
12 | #include "BaseLibInternals.h"\r | |
13 | \r | |
14 | /**\r | |
15 | Saves the current CPU context that can be restored with a call to LongJump() and returns 0.\r | |
16 | \r | |
17 | Saves the current CPU context in the buffer specified by JumpBuffer and returns 0. The initial\r | |
18 | call to SetJump() must always return 0. Subsequent calls to LongJump() cause a non-zero\r | |
19 | value to be returned by SetJump().\r | |
20 | \r | |
21 | If JumpBuffer is NULL, then ASSERT().\r | |
22 | For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().\r | |
23 | \r | |
24 | @param JumpBuffer A pointer to CPU context buffer.\r | |
25 | \r | |
26 | @retval 0 Indicates a return from SetJump().\r | |
27 | \r | |
28 | **/\r | |
29 | RETURNS_TWICE\r | |
30 | UINTN\r | |
31 | EFIAPI\r | |
32 | SetJump (\r | |
33 | OUT BASE_LIBRARY_JUMP_BUFFER *JumpBuffer\r | |
34 | )\r | |
35 | {\r | |
36 | InternalAssertJumpBuffer (JumpBuffer);\r | |
37 | return 0;\r | |
38 | }\r | |
39 | \r | |
40 | /**\r | |
41 | Restores the CPU context that was saved with SetJump().\r | |
42 | \r | |
43 | Restores the CPU context from the buffer specified by JumpBuffer.\r | |
44 | This function never returns to the caller.\r | |
45 | Instead it resumes execution based on the state of JumpBuffer.\r | |
46 | \r | |
47 | @param JumpBuffer A pointer to CPU context buffer.\r | |
48 | @param Value The value to return when the SetJump() context is restored.\r | |
49 | \r | |
50 | **/\r | |
51 | VOID\r | |
52 | EFIAPI\r | |
53 | InternalLongJump (\r | |
54 | IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer,\r | |
55 | IN UINTN Value\r | |
56 | )\r | |
57 | {\r | |
58 | //\r | |
59 | // This function cannot work on EBC\r | |
60 | //\r | |
61 | ASSERT (FALSE);\r | |
62 | }\r |