perf report: Add --symbol-filter option

Add new --symbol-filter command line option to set appropriate filter
string.

Its short version is missing as I couldn't find an ideal one and
--filter option of perf record also has no short version.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1331887855-874-4-git-send-email-namhyung.kim@lge.com
Signed-off-by: Namhyung Kim <namhyung.kim@lge.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 8e91c6e..80fb907 100644 (file)
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -50,6 +50,7 @@ struct perf_report {
        const char              *pretty_printing_style;
        symbol_filter_t         annotate_init;
        const char              *cpu_list;
+       const char              *symbol_filter_str;
        DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
 };
 
@@ -400,6 +401,9 @@ static int __cmd_report(struct perf_report *rep)
        list_for_each_entry(pos, &session->evlist->entries, node) {
                struct hists *hists = &pos->hists;
 
+               if (pos->idx == 0)
+                       hists->symbol_filter_str = rep->symbol_filter_str;
+
                hists__collapse_resort(hists);
                hists__output_resort(hists);
                nr_samples += hists->stats.nr_events[PERF_RECORD_SAMPLE];
@@ -591,6 +595,8 @@ int cmd_report(int argc, const char **argv, const char *prefix __used)
                   "only consider symbols in these comms"),
        OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
                   "only consider these symbols"),
+       OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter",
+                  "only show symbols that (partially) match with this filter"),
        OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
                   "width[,width...]",
                   "don't try to adjust column width, use these fixed values"),