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| author | Paul Mundt <lethal@linux-sh.org> | 2008-12-08 12:02:28 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-12-22 18:44:02 +0900 |
| commit | b5cfeac990cc164a3d3422aab88ac5b138fa822d (patch) | |
| tree | b87cfa078ee4bfe56c207266cbd4fd8ba1e8df3f /arch | |
| parent | 4bc3e7192cf9a47d9864c4e8259859be55a480b3 (diff) | |
| download | linux-b5cfeac990cc164a3d3422aab88ac5b138fa822d.tar.gz linux-b5cfeac990cc164a3d3422aab88ac5b138fa822d.tar.bz2 linux-b5cfeac990cc164a3d3422aab88ac5b138fa822d.zip | |
sh: Provide ftrace_make_call()/ftrace_make_nop().
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sh/kernel/ftrace.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/sh/kernel/ftrace.c b/arch/sh/kernel/ftrace.c index 6c193d56c2e7..4c3247477aa3 100644 --- a/arch/sh/kernel/ftrace.c +++ b/arch/sh/kernel/ftrace.c @@ -1,5 +1,6 @@ /* * Copyright (C) 2008 Matt Fleming <mjf@gentoo.org> + * Copyright (C) 2008 Paul Mundt <lethal@linux-sh.org> * * Code for replacing ftrace calls with jumps. * @@ -100,6 +101,29 @@ int ftrace_update_ftrace_func(ftrace_func_t func) return ftrace_modify_code(ip + MCOUNT_INSN_OFFSET, old, new); } +int ftrace_make_nop(struct module *mod, + struct dyn_ftrace *rec, unsigned long addr) +{ + unsigned char *new, *old; + unsigned long ip = rec->ip; + + old = ftrace_call_replace(ip, addr); + new = ftrace_nop_replace(); + + return ftrace_modify_code(rec->ip, old, new); +} + +int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr) +{ + unsigned char *new, *old; + unsigned long ip = rec->ip; + + old = ftrace_nop_replace(); + new = ftrace_call_replace(ip, addr); + + return ftrace_modify_code(rec->ip, old, new); +} + int __init ftrace_dyn_arch_init(void *data) { /* The return code is retured via data */ |