diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-05 13:08:11 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-12-17 14:57:02 -0300 |
| commit | 42da438c1bc4ad9b904401aff03678ddbf1329b0 (patch) | |
| tree | 9cfdcded8755a0daf9f7107c716d294c5d64b921 /tools/perf/builtin-trace.c | |
| parent | 3fcb10e496505e5573a7fc386cd1152781d37fe6 (diff) | |
perf trace: We need to consider "nr" if "__syscall_nr" is not there
To cope with older kernels that don't have this patch backported:
026842d148b9 ("tracing/syscalls: Rename "/format" tracepoint field name "nr" to "__syscall_nr:")
This makes 'perf trace' work again in RHEL7 kernels.
Cc: Taeung Song <treeze.taeung@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-6h1syw2isegnhb1bjmtr9x9k@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-trace.c')
| -rw-r--r-- | tools/perf/builtin-trace.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 2a347ed7bdf4..98aff12af9e6 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -258,7 +258,8 @@ static int perf_evsel__init_syscall_tp(struct perf_evsel *evsel) struct syscall_tp *sc = evsel->priv = malloc(sizeof(struct syscall_tp)); if (evsel->priv != NULL) { - if (perf_evsel__init_tp_uint_field(evsel, &sc->id, "__syscall_nr")) + if (perf_evsel__init_tp_uint_field(evsel, &sc->id, "__syscall_nr") && + perf_evsel__init_tp_uint_field(evsel, &sc->id, "nr")) goto out_delete; return 0; } |