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authorAbhishek Sagar <sagar.abhishek@gmail.com>2008-06-21 14:17:27 -0400
committerIngo Molnar <mingo@elte.hu>2008-06-23 16:10:56 -0400
commit395a59d0f8e86bb39cd700c3d185d30c670bb958 (patch)
tree1558e635efcede901c5dbe9acd625d475db5b369 /include/asm-x86/ftrace.h
parentf34bfb1beef8a17ba3d46b60f8fa19ffedc1ed8d (diff)
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.h14
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 @@
1#ifndef _ASM_X86_FTRACE
2#define _ASM_SPARC64_FTRACE
3
4#ifdef CONFIG_FTRACE
5#define MCOUNT_ADDR ((long)(mcount))
6#define MCOUNT_INSN_SIZE 5 /* sizeof mcount call */
7
8#ifndef __ASSEMBLY__
9extern void mcount(void);
10#endif
11
12#endif /* CONFIG_FTRACE */
13
14#endif /* _ASM_X86_FTRACE */