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>
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index df96d59..ea45bb1c 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -1541,6 +1541,11 @@
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[];