Messages in this thread | | | Date | Mon, 22 Aug 2011 07:03:31 -0600 | From | David Ahern <> | Subject | Re: [PATCH -tip v3 5/5] perf script: add option resolving vmlinux path |
| |
On 08/11/2011 06:06 AM, Akihiro Nagai wrote: > 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 > > # perf script -f ip,dso > ffffffff81467612 irq_return ([kernel.kallsyms]) > ffffffff81467612 irq_return ([kernel.kallsyms]) > 7f24fc02a6b3 _start (/lib64/ld-2.14.so) > [snip] > > With --show-kernel-path option > > # perf script -f ip,dso --show-kernel-path > ffffffff81467612 irq_return (/lib/modules/3.0.0+/build/vmlinux) > ffffffff81467612 irq_return (/lib/modules/3.0.0+/build/vmlinux) > 7f24fc02a6b3 _start (/lib64/ld-2.14.so) > [snip] > > Signed-off-by: Akihiro Nagai <akihiro.nagai.hw@hitachi.com> > Cc: Peter Zijlstra <peterz@infradead.org> > Cc: Frederic Weisbecker <fweisbec@gmail.com> > Cc: Paul Mackerras <paulus@samba.org> > Cc: Ingo Molnar <mingo@elte.hu> > Cc: Arnaldo Carvalho de Melo <acme@infradead.org> > Cc: David Ahern <dsahern@gmail.com> > Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> > --- > > tools/perf/Documentation/perf-script.txt | 3 +++ > tools/perf/builtin-script.c | 2 ++ > tools/perf/util/map.c | 9 ++++++--- > tools/perf/util/symbol.h | 1 + > 4 files changed, 12 insertions(+), 3 deletions(-) > > diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt > index ee4d477..5383671 100644 > --- a/tools/perf/Documentation/perf-script.txt > +++ b/tools/perf/Documentation/perf-script.txt > @@ -188,6 +188,9 @@ OPTIONS > CPUs are specified with -: 0-2. Default is to report samples on all > CPUs. > > +--show-kernel-path:: > + Try to resolve the path of [kernel.kallsyms] > + > SEE ALSO > -------- > linkperf:perf-record[1], linkperf:perf-script-perl[1], > diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c > index 78797b3..ba5d3bb 100644 > --- a/tools/perf/builtin-script.c > +++ b/tools/perf/builtin-script.c > @@ -1095,6 +1095,8 @@ static const struct option options[] = { > "addr,offs", > parse_output_fields), > OPT_STRING('c', "cpu", &cpu_list, "cpu", "list of cpus to profile"), > + OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path, > + "Show the path of [kernel.kallsyms]"), > > OPT_END() > }; > diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c > index 530a5ea..6ba4909 100644 > --- a/tools/perf/util/map.c > +++ b/tools/perf/util/map.c > @@ -204,9 +204,12 @@ void map__print_dsoname(struct map *self) > { > const char *dsoname; > > - if (self && self->dso && self->dso->name) > - dsoname = self->dso->name; > - else > + if (self && self->dso && (self->dso->name || self->dso->long_name)) { > + if (symbol_conf.show_kernel_path && self->dso->long_name) > + dsoname = self->dso->long_name; > + else if (self->dso->name) > + dsoname = self->dso->name; > + } else > dsoname = "[unknown]"; > > printf("%s", dsoname); > diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h > index 554b2fe..3a63c92 100644 > --- a/tools/perf/util/symbol.h > +++ b/tools/perf/util/symbol.h > @@ -69,6 +69,7 @@ struct strlist; > struct symbol_conf { > unsigned short priv_size; > bool try_vmlinux_path, > + show_kernel_path, > use_modules, > sort_by_name, > show_nr_samples, >
Acked-By: David Ahern <dsahern@gmail.com>
| |