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Commit 6cfd1f68 authored by Masami Hiramatsu's avatar Masami Hiramatsu Committed by Arnaldo Carvalho de Melo
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perf probe: Add --no-inlines option to avoid searching inline functions 



Add --no-inlines(--inlines) option to avoid searching inline functions.

Searching all functions which matches glob pattern can take a long time
and find a lot of inline functions.

With this option perf-probe searches target on the non-inlined
functions.

Signed-off-by: default avatarMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Hemant Kumar <hemant@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20150508010333.24812.86568.stgit@localhost.localdomain


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent ddb2f58f

tools/perf/Documentation/perf-probe.txt

+4 −0
Original line number Diff line number Diff line
@@ -83,6 +83,10 @@ OPTIONS 
	(Only for --vars) Show external defined variables in addition to local

	variables.



--no-inlines::

	(Only for --add) Search only for non-inlined functions. The functions

	which do not have instances are ignored.



-F::

--funcs[=FILTER]::

	Show available functions in given module or kernel. With -x/--exec,

tools/perf/builtin-probe.c

+2 −0
Original line number Diff line number Diff line
@@ -379,6 +379,8 @@ __cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused) 
	OPT_CALLBACK('m', "module", NULL, "modname|path",

		"target module name (for online) or path (for offline)",

		opt_set_target),

	OPT_BOOLEAN('\0', "no-inlines", &probe_conf.no_inlines,

		"Don't search inlined functions"),

#endif

	OPT__DRY_RUN(&probe_event_dry_run),

	OPT_INTEGER('\0', "max-probes", &probe_conf.max_probes,

tools/perf/util/probe-event.h

+1 −0
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ 
struct probe_conf {

	bool	show_ext_vars;

	bool	force_add;

	bool	no_inlines;

	int	max_probes;

};

extern struct probe_conf probe_conf;

tools/perf/util/probe-finder.c

+1 −1
Original line number Diff line number Diff line
@@ -943,7 +943,7 @@ static int probe_point_search_cb(Dwarf_Die *sp_die, void *data) 
			/* TODO: Check the address in this function */

			param->retval = call_probe_finder(sp_die, pf);

		}

	} else

	} else if (!probe_conf.no_inlines)

		/* Inlined function: search instances */

		param->retval = die_walk_instances(sp_die,

					probe_point_inline_cb, (void *)pf);