1 files changed, 15 insertions, 0 deletions

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 7b139e1e7e86..555aefd7fe01 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -28,6 +28,8 @@
 #include "util/hist.h"
 #include "util/session.h"
 
+#include <linux/bitmap.h>
+
 static char             const *input_name = "perf.data";
 
 static bool             force, use_tui, use_stdio;
@@ -38,6 +40,9 @@ static bool		print_line;
 
 static const char *sym_hist_filter;
 
+static const char       *cpu_list;
+static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
+
 static int perf_evlist__add_sample(struct perf_evlist *evlist,
                                    struct perf_sample *sample,
                                    struct perf_evsel *evsel,
@@ -90,6 +95,9 @@ static int process_sample_event(union perf_event *event,
                 return -1;
         }
 
+        if (cpu_list && !test_bit(sample->cpu, cpu_bitmap))
+                return 0;
+
         if (!al.filtered &&
             perf_evlist__add_sample(session->evlist, sample, evsel, &al)) {
                 pr_warning("problem incrementing symbol count, "
@@ -177,6 +185,12 @@ static int __cmd_annotate(void)
         if (session == NULL)
                 return -ENOMEM;
 
+        if (cpu_list) {
+                ret = perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap);
+                if (ret)
+                        goto out_delete;
+        }
+
         ret = perf_session__process_events(session, &event_ops);
         if (ret)
                 goto out_delete;
@@ -252,6 +266,7 @@ static const struct option options[] = {
                     "print matching source lines (may be slow)"),
         OPT_BOOLEAN('P', "full-paths", &full_paths,
                     "Don't shorten the displayed pathnames"),
+        OPT_STRING('c', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
         OPT_END()
 };