diff options
| author | Michael Ellerman <michael@ellerman.id.au> | 2008-06-24 11:32:21 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2008-07-01 11:28:18 +1000 |
| commit | aaddd3eacaeaef3503035750b3f21ac2bfe97cbf (patch) | |
| tree | 2bac0bedc2185edec916679d218e1c8b89276453 /include/asm-powerpc/code-patching.h | |
| parent | 73f38fe1b563a9d23ffacbda7b51decf41b0c49c (diff) | |
powerpc: Move code patching code into arch/powerpc/lib/code-patching.c
We currently have a few routines for patching code in asm/system.h, because
they didn't fit anywhere else. I'd like to clean them up a little and add
some more, so first move them into a dedicated C file - they don't need to
be inlined.
While we're moving the code, drop create_function_call(), it's intended
caller never got merged and will be replaced in future with something
different.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/code-patching.h')
| -rw-r--r-- | include/asm-powerpc/code-patching.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/asm-powerpc/code-patching.h b/include/asm-powerpc/code-patching.h new file mode 100644 index 00000000000..0b91fdf944d --- /dev/null +++ b/include/asm-powerpc/code-patching.h @@ -0,0 +1,25 @@ +#ifndef _ASM_POWERPC_CODE_PATCHING_H +#define _ASM_POWERPC_CODE_PATCHING_H + +/* + * Copyright 2008, Michael Ellerman, IBM Corporation. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +/* Flags for create_branch: + * "b" == create_branch(addr, target, 0); + * "ba" == create_branch(addr, target, BRANCH_ABSOLUTE); + * "bl" == create_branch(addr, target, BRANCH_SET_LINK); + * "bla" == create_branch(addr, target, BRANCH_ABSOLUTE | BRANCH_SET_LINK); + */ +#define BRANCH_SET_LINK 0x1 +#define BRANCH_ABSOLUTE 0x2 + +extern void create_branch(unsigned long addr, unsigned long target, int flags); +extern void create_instruction(unsigned long addr, unsigned int instr); + +#endif /* _ASM_POWERPC_CODE_PATCHING_H */ |