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| author |   Steven Rostedt <rostedt@goodmis.org> | 2008-08-14 15:45:09 -0400 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-10-14 10:34:47 +0200 |
| commit | 90d595fe5ca4b685465c068907e6e554760abea8 (patch) | |
| tree | 03f98454af8c6756177aa053ae7440373007f67d /kernel/trace/ftrace.c | |
| parent | ftrace: mcount call site on boot nops core (diff) | |
| download | linux-dev-90d595fe5ca4b685465c068907e6e554760abea8.tar.xz linux-dev-90d595fe5ca4b685465c068907e6e554760abea8.zip | |
ftrace: enable mcount recording for modules
This patch enables the loading of the __mcount_section of modules and
changing all the callers of mcount into nops.
The modification is done before the init_module function is called, so
again, we do not need to use kstop_machine to make these changes.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace/ftrace.c')
| -rw-r--r-- | kernel/trace/ftrace.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index df96d5990c04..ea45bb1c0fd6 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -1541,6 +1541,11 @@ static int ftrace_convert_nops(unsigned long *start, return 0; } +void ftrace_init_module(unsigned long *start, unsigned long *end) +{ + ftrace_convert_nops(start, end); +} + extern unsigned long __start_mcount_loc[]; extern unsigned long __stop_mcount_loc[]; |