Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf into perf/urgent

Pull perf/urgent fixes from Jiri Olsa:

  * Fix memory leak and backward compatibility macros for pevent
    filter enums in traceevent library (Steven Rostedt)

  * Disable libdw unwind for all but x86 arch (Jiri Olsa)

  * Fix memory leak in sample_ustack (Masanari Iida)

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

4 files changed, 12 insertions, 2 deletions

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index baec7d887da4..b83184f2d484 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -4344,6 +4344,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
                                               format, len_arg, arg);
                                 trace_seq_terminate(&p);
                                 trace_seq_puts(s, p.buffer);
+                                trace_seq_destroy(&p);
                                 arg = arg->next;
                                 break;
                         default:
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 791c539374c7..feab94281634 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -876,8 +876,8 @@ struct event_filter {
 struct event_filter *pevent_filter_alloc(struct pevent *pevent);
 
 /* for backward compatibility */
-#define FILTER_NONE             PEVENT_ERRNO__FILTER_NOT_FOUND
-#define FILTER_NOEXIST          PEVENT_ERRNO__NO_FILTER
+#define FILTER_NONE             PEVENT_ERRNO__NO_FILTER
+#define FILTER_NOEXIST          PEVENT_ERRNO__FILTER_NOT_FOUND
 #define FILTER_MISS             PEVENT_ERRNO__FILTER_MISS
 #define FILTER_MATCH            PEVENT_ERRNO__FILTER_MATCH
 
diff --git a/tools/perf/arch/x86/tests/dwarf-unwind.c b/tools/perf/arch/x86/tests/dwarf-unwind.c
index b602ad93ce63..b8c0102c70c8 100644
--- a/tools/perf/arch/x86/tests/dwarf-unwind.c
+++ b/tools/perf/arch/x86/tests/dwarf-unwind.c
@@ -26,6 +26,7 @@ static int sample_ustack(struct perf_sample *sample,
         map = map_groups__find(&thread->mg, MAP__FUNCTION, (u64) sp);
         if (!map) {
                 pr_debug("failed to get stack map\n");
+                free(buf);
                 return -1;
         }
 
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index ee21fa95ebcf..a71fb395e38f 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -34,6 +34,14 @@ ifeq ($(ARCH),arm)
   LIBUNWIND_LIBS = -lunwind -lunwind-arm
 endif
 
+# So far there's only x86 libdw unwind support merged in perf.
+# Disable it on all other architectures in case libdw unwind
+# support is detected in system. Add supported architectures
+# to the check.
+ifneq ($(ARCH),x86)
+  NO_LIBDW_DWARF_UNWIND := 1
+endif
+
 ifeq ($(LIBUNWIND_LIBS),)
   NO_LIBUNWIND := 1
 else