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aaddd3ea ME |
1 | #ifndef _ASM_POWERPC_CODE_PATCHING_H |
2 | #define _ASM_POWERPC_CODE_PATCHING_H | |
3 | ||
4 | /* | |
5 | * Copyright 2008, Michael Ellerman, IBM Corporation. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * as published by the Free Software Foundation; either version | |
10 | * 2 of the License, or (at your option) any later version. | |
11 | */ | |
12 | ||
13 | /* Flags for create_branch: | |
14 | * "b" == create_branch(addr, target, 0); | |
15 | * "ba" == create_branch(addr, target, BRANCH_ABSOLUTE); | |
16 | * "bl" == create_branch(addr, target, BRANCH_SET_LINK); | |
17 | * "bla" == create_branch(addr, target, BRANCH_ABSOLUTE | BRANCH_SET_LINK); | |
18 | */ | |
19 | #define BRANCH_SET_LINK 0x1 | |
20 | #define BRANCH_ABSOLUTE 0x2 | |
21 | ||
e7a57273 ME |
22 | unsigned int create_branch(const unsigned int *addr, |
23 | unsigned long target, int flags); | |
24 | void patch_branch(unsigned int *addr, unsigned long target, int flags); | |
25 | void patch_instruction(unsigned int *addr, unsigned int instr); | |
aaddd3ea ME |
26 | |
27 | #endif /* _ASM_POWERPC_CODE_PATCHING_H */ |