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parisc: add support for patching multiple words

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add patch_text_multiple() which allows to patch multiple
text words in memory. This can be used to copy functions.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Sven Schnelle
2019-06-05 22:32:17 +02:00
committed by Helge Deller
parent 79c3ba3206
commit 4e87ace902
2 changed files with 62 additions and 17 deletions
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4
arch/parisc/include/asm/patch.h
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@@ -4,8 +4,10 @@
/* stop machine and patch kernel text */
void patch_text(void *addr, unsigned int insn);
void patch_text_multiple(void *addr, u32 *insn, unsigned int len);
/* patch kernel text with machine already stopped (e.g. in kgdb) */
void __patch_text(void *addr, unsigned int insn);
void __patch_text(void *addr, u32 insn);
void __patch_text_multiple(void *addr, u32 *insn, unsigned int len);
#endif