GitHub-Mirror/linux-bl808
2
0
Fork 0
mirror of https://github.com/Fishwaldo/linux-bl808.git synced 2025-06-17 20:25:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

tracing: Add perf counter support for syscalls tracing

Browse source 
The perf counter support is automated for usual trace events. But we
have to define specific callbacks for this to handle syscalls trace
events

Make 'perf stat -e syscalls:sys_enter_blah' work with syscall style
tracepoints.

Signed-off-by: Jason Baron <jbaron@redhat.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Jiaying Zhang <jiayingz@google.com>
Cc: Martin Bligh <mbligh@google.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
This commit is contained in:
Jason Baron 2009-08-10 16:53:02 -04:00 • committed by Frederic Weisbecker
parent 64c12e0444
commit f4b5ffccc8
4 changed files with 181 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

7
include/trace/syscall.h
View file

@ -57,6 +57,13 @@ extern int reg_event_syscall_exit(void *ptr);
extern void unreg_event_syscall_exit(void *ptr);
enum print_line_t print_syscall_enter(struct trace_iterator *iter, int flags);
enum print_line_t print_syscall_exit(struct trace_iterator *iter, int flags);
#endif
#ifdef CONFIG_EVENT_PROFILE
int reg_prof_syscall_enter(char *name);
void unreg_prof_syscall_enter(char *name);
int reg_prof_syscall_exit(char *name);
void unreg_prof_syscall_exit(char *name);
#endif
#endif /* _TRACE_SYSCALL_H */