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ebd04fc2 | 1 | #------------------------------------------------------------------------------ \r |
2 | #\r | |
bb817c56 HT |
3 | # Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>\r |
4 | # Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r | |
5 | # This program and the accompanying materials\r | |
ebd04fc2 | 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 | |
35a17154 | 8 | # http://opensource.org/licenses/bsd-license.php.\r |
ebd04fc2 | 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 | #------------------------------------------------------------------------------\r | |
14 | .text\r | |
15 | .p2align 2\r | |
16 | \r | |
17 | .globl ASM_PFX(SetJump)\r | |
e7cb469e | 18 | INTERWORK_FUNC(SetJump) |
19 | \r | |
ebd04fc2 | 20 | .globl ASM_PFX(InternalLongJump)\r |
e7cb469e | 21 | INTERWORK_FUNC(InternalLongJump) |
ebd04fc2 | 22 | \r |
23 | #/**\r | |
24 | # Saves the current CPU context that can be restored with a call to LongJump() and returns 0.#\r | |
25 | #\r | |
26 | # Saves the current CPU context in the buffer specified by JumpBuffer and returns 0. The initial\r | |
27 | # call to SetJump() must always return 0. Subsequent calls to LongJump() cause a non-zero\r | |
28 | # value to be returned by SetJump().\r | |
29 | #\r | |
30 | # If JumpBuffer is NULL, then ASSERT().\r | |
31 | # For IPF CPUs, if JumpBuffer is not aligned on a 16-byte boundary, then ASSERT().\r | |
32 | #\r | |
33 | # @param JumpBuffer A pointer to CPU context buffer.\r | |
34 | #\r | |
35 | #**/\r | |
36 | #\r | |
37 | #UINTN\r | |
38 | #EFIAPI\r | |
39 | #SetJump (\r | |
40 | # IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer // R0\r | |
41 | # );\r | |
42 | #\r | |
43 | ASM_PFX(SetJump):\r | |
44 | mov r3, r13\r | |
45 | stmia r0, {r3-r12,r14}\r | |
46 | eor r0, r0, r0\r | |
47 | bx lr\r | |
48 | \r | |
49 | #/**\r | |
50 | # Restores the CPU context that was saved with SetJump().#\r | |
51 | #\r | |
52 | # Restores the CPU context from the buffer specified by JumpBuffer.\r | |
53 | # This function never returns to the caller.\r | |
54 | # Instead is resumes execution based on the state of JumpBuffer.\r | |
55 | #\r | |
56 | # @param JumpBuffer A pointer to CPU context buffer.\r | |
57 | # @param Value The value to return when the SetJump() context is restored.\r | |
58 | #\r | |
59 | #**/\r | |
60 | #VOID\r | |
61 | #EFIAPI\r | |
62 | #InternalLongJump (\r | |
63 | # IN BASE_LIBRARY_JUMP_BUFFER *JumpBuffer, // R0\r | |
64 | # IN UINTN Value // R1\r | |
65 | # );\r | |
66 | #\r | |
67 | ASM_PFX(InternalLongJump):\r | |
68 | ldmia r0, {r3-r12,r14}\r | |
69 | mov r13, r3\r | |
70 | mov r0, r1\r | |
71 | bx lr\r | |
72 | \r | |
7f22d351 | 73 | ASM_FUNCTION_REMOVE_IF_UNREFERENCED\r |