perf report: Add --dsos parameter

So that we can filter by dso. Symbols in other dsos won't be
accounted for.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1246399282-20934-2-git-send-email-acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 16 insertions, 0 deletions

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index ed391db9e0f8..7c6b6e776718 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -16,6 +16,7 @@
 #include "util/symbol.h"
 #include "util/string.h"
 #include "util/callchain.h"
+#include "util/strlist.h"
 
 #include "perf.h"
 #include "util/header.h"
@@ -32,6 +33,8 @@ static char		*vmlinux = NULL;
 
 static char             default_sort_order[] = "comm,dso";
 static char             *sort_order = default_sort_order;
+static char             *dso_list_str;
+static struct strlist   *dso_list;
 
 static int              input;
 static int              show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV;
@@ -1272,6 +1275,9 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head)
         if (show & show_mask) {
                 struct symbol *sym = resolve_symbol(thread, &map, &dso, &ip);
 
+                if (dso_list && dso && dso->name && !strlist__has_entry(dso_list, dso->name))
+                        return 0;
+
                 if (hist_entry__add(thread, map, dso, sym, ip, chain, level, period)) {
                         eprintf("problem incrementing symbol count, skipping event\n");
                         return -1;
@@ -1659,6 +1665,8 @@ static const struct option options[] = {
         OPT_BOOLEAN('x', "exclude-other", &exclude_other,
                     "Only display entries with parent-match"),
         OPT_BOOLEAN('c', "callchain", &callchain, "Display callchains"),
+        OPT_STRING('d', "dsos", &dso_list_str, "dso[,dso...]",
+                   "only consider symbols in these dsos"),
         OPT_END()
 };
 
@@ -1698,6 +1706,14 @@ int cmd_report(int argc, const char **argv, const char *prefix)
         if (argc)
                 usage_with_options(report_usage, options);
 
+        if (dso_list_str) {
+                dso_list = strlist__new(true, dso_list_str);
+                if (!dso_list) {
+                        fprintf(stderr, "problems parsing dso list\n");
+                        exit(129);
+                }
+        }
+
         setup_pager();
 
         return __cmd_report();