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| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2010-10-21 19:13:23 +0900 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-10-21 15:59:06 -0200 |
| commit | cf6eb489e5c04c8f8d5fd7bf90b8346c987688bc (patch) | |
| tree | 3da471c3ae3f99cdcbec26cc95412a4b44506f3c /tools/perf/util/probe-event.h | |
| parent | 632941c4f8fbd5b90dcb1672cd0422dfd7332bc9 (diff) | |
| download | linux-cf6eb489e5c04c8f8d5fd7bf90b8346c987688bc.tar.bz2 | |
perf probe: Show accessible local variables
Add -V (--vars) option for listing accessible local variables at given probe
point. This will help finding which local variables are available for event
arguments.
e.g.)
# perf probe -V call_timer_fn:23
Available variables at call_timer_fn:23
@<run_timer_softirq+345>
function_type* fn
int preempt_count
long unsigned int data
struct list_head work_list
struct list_head* head
struct timer_list* timer
struct tvec_base* base
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20101021101323.3542.40282.stgit@ltc236.sdl.hitachi.co.jp>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/probe-event.h')
| -rw-r--r-- | tools/perf/util/probe-event.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h index 5af39243a25b..727a7fe81a02 100644 --- a/tools/perf/util/probe-event.h +++ b/tools/perf/util/probe-event.h @@ -90,6 +90,12 @@ struct line_range { struct list_head line_list; /* Visible lines */ }; +/* List of variables */ +struct variable_list { + struct probe_trace_point point; /* Actual probepoint */ + struct strlist *vars; /* Available variables */ +}; + /* Command string to events */ extern int parse_perf_probe_command(const char *cmd, struct perf_probe_event *pev); @@ -115,6 +121,8 @@ extern int add_perf_probe_events(struct perf_probe_event *pevs, int npevs, extern int del_perf_probe_events(struct strlist *dellist); extern int show_perf_probe_events(void); extern int show_line_range(struct line_range *lr); +extern int show_available_vars(struct perf_probe_event *pevs, int npevs, + int max_probe_points); /* Maximum index number of event-name postfix */ |