perf script: Add option resolving vmlinux path (0bc8d205) · Commits · 戴 / test

Add the option get the path of [kernel.kallsyms]. Specify '--show-kernel-path' option to use this function. This patch enables other applications to use this output easily. Without --show-kernel-path option ffffffff81467612 irq_return ([kernel.kallsyms]) ffffffff81467612 irq_return ([kernel.kallsyms]) 7f24fc02a6b3 _start (/lib64/ld-2.14.so) [snip] With --show-kernel-path option ffffffff81467612 irq_return (/lib/modules/3.2.0+/build/vmlinux) ffffffff81467612 irq_return (/lib/modules/3.2.0+/build/vmlinux) 7f24fc02a6b3 _start (/lib64/ld-2.14.so) [snip] Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: yrl.pp-manager.tt@hitachi.com Link: http://lkml.kernel.org/r/20120130044320.2384.73322.stgit@linux3 Signed-off-by:

Akihiro Nagai <akihiro.nagai.hw@hitachi.com> Signed-off-by:

Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/Documentation/perf-script.txt

+3 −0

Original line number	Diff line number	Diff line
		@@ -200,6 +200,9 @@ OPTIONS
		It currently includes: cpu and numa topology of the host system.
		It can only be used with the perf script report mode.

		--show-kernel-path::
		Try to resolve the path of [kernel.kallsyms]

		SEE ALSO
		--------
		linkperf:perf-record[1], linkperf:perf-script-perl[1],

tools/perf/builtin-script.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1155,6 +1155,9 @@ static const struct option options[] = {
		"only display events for these comms"),
		OPT_BOOLEAN('I', "show-info", &show_full_info,
		"display extended information from perf.data file"),
		OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path,
		"Show the path of [kernel.kallsyms]"),

		OPT_END()
		};

tools/perf/util/map.c

+6 −3

Original line number	Diff line number	Diff line
		@@ -216,9 +216,12 @@ size_t map__fprintf_dsoname(struct map map, FILE fp)
		{
		const char *dsoname;

		if (map && map->dso && map->dso->name)
		if (map && map->dso && (map->dso->name \|\| map->dso->long_name)) {
		if (symbol_conf.show_kernel_path && map->dso->long_name)
		dsoname = map->dso->long_name;
		else if (map->dso->name)
		dsoname = map->dso->name;
		else
		} else
		dsoname = "[unknown]";

		return fprintf(fp, "%s", dsoname);

tools/perf/util/symbol.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -70,6 +70,7 @@ struct symbol_conf {
		unsigned short priv_size;
		unsigned short nr_events;
		bool try_vmlinux_path,
		show_kernel_path,
		use_modules,
		sort_by_name,
		show_nr_samples,

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