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| author | Masami Hiramatsu <mhiramat@redhat.com> | 2010-04-21 21:56:40 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-04-26 20:35:20 +0200 |
| commit | ef4a356574426877d569f8b6579325537eb7909b (patch) | |
| tree | 0416c4ab1740a5ff6a07c01eee3e371128881110 /tools/perf/util/probe-finder.h | |
| parent | perf probe: Fix to exit callback soon after finding too many probe points (diff) | |
| download | linux-ef4a356574426877d569f8b6579325537eb7909b.tar.xz linux-ef4a356574426877d569f8b6579325537eb7909b.zip | |
perf probe: Add --max-probes option
Add --max-probes option to change the maximum limit of
findable probe points per event, since inlined function can be
expanded into thousands of probe points. Default value is 128.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Suggested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
LKML-Reference: <20100421195640.24664.62984.stgit@localhost6.localdomain6>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/probe-finder.h')
| -rw-r--r-- | tools/perf/util/probe-finder.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/perf/util/probe-finder.h b/tools/perf/util/probe-finder.h index 310ce897229c..66f1980e3855 100644 --- a/tools/perf/util/probe-finder.h +++ b/tools/perf/util/probe-finder.h @@ -18,7 +18,8 @@ static inline int is_c_varname(const char *name) #ifdef DWARF_SUPPORT /* Find kprobe_trace_events specified by perf_probe_event from debuginfo */ extern int find_kprobe_trace_events(int fd, struct perf_probe_event *pev, - struct kprobe_trace_event **tevs); + struct kprobe_trace_event **tevs, + int max_tevs); /* Find a perf_probe_point from debuginfo */ extern int find_perf_probe_point(int fd, unsigned long addr, @@ -32,7 +33,8 @@ extern int find_line_range(int fd, struct line_range *lr); struct probe_finder { struct perf_probe_event *pev; /* Target probe event */ struct kprobe_trace_event *tevs; /* Result trace events */ - int ntevs; /* number of trace events */ + int ntevs; /* Number of trace events */ + int max_tevs; /* Max number of trace events */ /* For function searching */ int lno; /* Line number */ |