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| author | Abhishek Sagar <sagar.abhishek@gmail.com> | 2008-06-21 23:47:27 +0530 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-06-23 22:10:56 +0200 |
| commit | 395a59d0f8e86bb39cd700c3d185d30c670bb958 (patch) | |
| tree | 1558e635efcede901c5dbe9acd625d475db5b369 /include/linux/ftrace.h | |
| parent | f34bfb1beef8a17ba3d46b60f8fa19ffedc1ed8d (diff) | |
| download | blackbird-op-linux-395a59d0f8e86bb39cd700c3d185d30c670bb958.tar.gz blackbird-op-linux-395a59d0f8e86bb39cd700c3d185d30c670bb958.zip | |
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/linux/ftrace.h')
| -rw-r--r-- | include/linux/ftrace.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 20e14d0093c7..366098d591de 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -31,7 +31,6 @@ int unregister_ftrace_function(struct ftrace_ops *ops); void clear_ftrace_function(void); extern void ftrace_stub(unsigned long a0, unsigned long a1); -extern void mcount(void); #else /* !CONFIG_FTRACE */ # define register_ftrace_function(ops) do { } while (0) @@ -54,7 +53,7 @@ enum { struct dyn_ftrace { struct hlist_node node; - unsigned long ip; + unsigned long ip; /* address of mcount call-site */ unsigned long flags; }; |
