lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ftrace: startup tester on dynamic tracing.

Browse Source 
This patch adds a startup self test on dynamic code modification
and filters. The test filters on a specific function, makes sure that
no other function is traced, exectutes the function, then makes sure that
the function is traced.

This patch also fixes a slight bug with the ftrace selftest, where
tracer_enabled was not being set.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Steven Rostedt
2008-05-12 21:20:45 +02:00
committed by Thomas Gleixner
parent 7bd2f24c2f
commit 77a2b37d22
3 changed files with 130 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/ftrace.h
View File

@ -55,6 +55,7 @@ struct dyn_ftrace {
};
int ftrace_force_update(void);
void ftrace_set_filter(unsigned char *buf, int len, int reset);
/* defined in arch */
extern int ftrace_ip_converted(unsigned long ip);
@ -70,6 +71,7 @@ extern void ftrace_call(void);
extern void mcount_call(void);
#else
# define ftrace_force_update() ({ 0; })
# define ftrace_set_filter(buf, len, reset) do { } while (0)
#endif
static inline void tracer_disable(void)