diff options
| author | Abhishek Sagar <sagar.abhishek@gmail.com> | 2008-06-21 22:17:27 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-06-24 00:10:56 +0400 |
| commit | 395a59d0f8e86bb39cd700c3d185d30c670bb958 (patch) | |
| tree | 1558e635efcede901c5dbe9acd625d475db5b369 /include/asm-x86/ftrace.h | |
| parent | f34bfb1beef8a17ba3d46b60f8fa19ffedc1ed8d (diff) | |
| download | linux-395a59d0f8e86bb39cd700c3d185d30c670bb958.tar.xz | |
ftrace: store mcount address in rec->ip
Record the address of the mcount call-site. Currently all archs except sparc64
record the address of the instruction following the mcount call-site. Some
general cleanups are entailed. Storing mcount addresses in rec->ip enables
looking them up in the kprobe hash table later on to check if they're kprobe'd.
Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com>
Cc: davem@davemloft.net
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/ftrace.h')
| -rw-r--r-- | include/asm-x86/ftrace.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/asm-x86/ftrace.h b/include/asm-x86/ftrace.h new file mode 100644 index 000000000000..c184441133f2 --- /dev/null +++ b/include/asm-x86/ftrace.h @@ -0,0 +1,14 @@ +#ifndef _ASM_X86_FTRACE +#define _ASM_SPARC64_FTRACE + +#ifdef CONFIG_FTRACE +#define MCOUNT_ADDR ((long)(mcount)) +#define MCOUNT_INSN_SIZE 5 /* sizeof mcount call */ + +#ifndef __ASSEMBLY__ +extern void mcount(void); +#endif + +#endif /* CONFIG_FTRACE */ + +#endif /* _ASM_X86_FTRACE */ |