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|---|---|
| From | Arnaldo Carvalho de Melo <acme@kernel.org> |
| Newsgroups | linux.kernel |
| Subject | [PATCH 1/2] perf list: Add support for PERF_COUNT_SW_BPF_OUT |
| Date | Thu, 17 Dec 2015 02:00:04 +0100 |
| Message-ID | <qGv5i-DM-63@gated-at.bofh.it> (permalink) |
| References | <qGv5h-DM-43@gated-at.bofh.it> |
| X-Original-To | Ingo Molnar <mingo@kernel.org> |
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| X-Original-Cc | linux-kernel@vger.kernel.org, Arnaldo Carvalho de Melo <acme@redhat.com>, Adrian Hunter <adrian.hunter@intel.com>, Alexei Starovoitov <ast@kernel.org>, David Ahern <dsahern@gmail.com>, Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>, Wang Nan <wangnan0@huawei.com>, William Cohen <wcohen@redhat.com> |
| X-Original-Date | Wed, 16 Dec 2015 21:56:10 -0300 |
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From: Arnaldo Carvalho de Melo <acme@redhat.com>
When PERF_COUNT_SW_BPF_OUTPUT was added to the kernel we should've
added it to tools/perf, where it is used just to list events.
This ended up causing a segfault in commands like "perf list stall".
Fix it by adding that new software counter.
A patch to robustify perf to not segfault when the next counter gets
added in the kernel will follow this one.
Reported-by: Ingo Molnar <mingo@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Cc: William Cohen <wcohen@redhat.com>
Link: http://lkml.kernel.org/n/tip-uya354upi3eprsey6mi5962d@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/parse-events.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index e48d9da75707..40ae92a8673c 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -124,6 +124,10 @@ struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = {
.symbol = "dummy",
.alias = "",
},
+ [PERF_COUNT_SW_BPF_OUTPUT] = {
+ .symbol = "bpf-output",
+ .alias = "",
+ },
};
#define __PERF_EVENT_FIELD(config, name) \
--
2.1.0
--
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[GIT PULL 0/2] perf/urgent fix Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 02:00 +0100 [PATCH 2/2] perf list: Robustify event printing routine Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 02:00 +0100 [PATCH 1/2] perf list: Add support for PERF_COUNT_SW_BPF_OUT Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-12-17 02:00 +0100 Re: [GIT PULL 0/2] perf/urgent fix Ingo Molnar <mingo@kernel.org> - 2015-12-18 09:50 +0100
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