linux-kernel - [PATCH 1/8] perf tools: Fix bug in 'perf list event

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Date:	Fri, 27 Dec 2013 18:03:27 -0500
From:	Dongsheng Yang <yangds.fnst@...fujitsu.com>
To:	acme@...hat.com, mingo@...nel.org, dsahern@...il.com,
	linux-kernel@...r.kernel.org
Cc:	Dongsheng Yang <yangds.fnst@...fujitsu.com>
Subject: [PATCH 1/8] perf tools: Fix bug in 'perf list event_glob'.

As what the usage showing, we can input a event_glob as an argument to list
all symbols. But it does not work well right now.

Example:
	# perf list kvmmmu

	List of pre-defined events (to be used in -e):

This patch make it work well as follows.

Verification:
	# perf list kvmmmu

	List of pre-defined events (to be used in -e):
	  kvmmmu:kvm_mmu_pagetable_walk                      [Tracepoint event]
	  kvmmmu:kvm_mmu_paging_element                      [Tracepoint event]
	  kvmmmu:kvm_mmu_set_accessed_bit                    [Tracepoint event]
	  kvmmmu:kvm_mmu_set_dirty_bit                       [Tracepoint event]
	  kvmmmu:kvm_mmu_walker_error                        [Tracepoint event]
	  kvmmmu:kvm_mmu_get_page                            [Tracepoint event]
	  kvmmmu:kvm_mmu_sync_page                           [Tracepoint event]
	  kvmmmu:kvm_mmu_unsync_page                         [Tracepoint event]
	  kvmmmu:kvm_mmu_prepare_zap_page                    [Tracepoint event]
	  kvmmmu:mark_mmio_spte                              [Tracepoint event]
	  kvmmmu:handle_mmio_page_fault                      [Tracepoint event]
	  kvmmmu:fast_page_fault                             [Tracepoint event]

Signed-off-by: Dongsheng Yang <yangds.fnst@...fujitsu.com>
---
 tools/perf/util/parse-events.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 094c28b..d887ea4 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1236,6 +1236,8 @@ void print_events(const char *event_glob, bool name_only)
 
 	print_pmu_events(event_glob, name_only);
 
+	print_tracepoint_events(event_glob, NULL, name_only);
+
 	if (event_glob != NULL)
 		return;
 
@@ -1254,8 +1256,6 @@ void print_events(const char *event_glob, bool name_only)
 			event_type_descriptors[PERF_TYPE_BREAKPOINT]);
 		printf("\n");
 	}
-
-	print_tracepoint_events(NULL, NULL, name_only);
 }
 
 int parse_events__is_hardcoded_term(struct parse_events_term *term)
-- 
1.8.2.1

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