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| author | Adrian Hunter <adrian.hunter@intel.com> | 2020-07-10 17:10:55 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-08-06 13:20:17 +0200 |
| commit | 2c9a11af84b19e42a8e51a3cac6e08efc546d281 (patch) | |
| tree | fee260231d9d9dbd1ce1bed3bf2961f367b9d3a1 /tools | |
| parent | perf intel-pt: Fix duplicate branch after CBR (diff) | |
| download | linux-2c9a11af84b19e42a8e51a3cac6e08efc546d281.tar.xz linux-2c9a11af84b19e42a8e51a3cac6e08efc546d281.zip | |
perf tools: Improve aux_output not supported error
For example:
Before:
$ perf record -e '{intel_pt/branch=0/,branch-loads/aux-output/ppp}' -- ls -l
Error:
branch-loads: PMU Hardware doesn't support sampling/overflow-interrupts. Try 'perf stat'
After:
$ perf record -e '{intel_pt/branch=0/,branch-loads/aux-output/ppp}' -- ls -l
Error:
branch-loads: PMU Hardware doesn't support 'aux_output' feature
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20200710151104.15137-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/evsel.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 11794d3b7879..b1845f799d81 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -2535,6 +2535,10 @@ int evsel__open_strerror(struct evsel *evsel, struct target *target, "No such device - did you specify an out-of-range profile CPU?"); break; case EOPNOTSUPP: + if (evsel->core.attr.aux_output) + return scnprintf(msg, size, + "%s: PMU Hardware doesn't support 'aux_output' feature", + evsel__name(evsel)); if (evsel->core.attr.sample_period != 0) return scnprintf(msg, size, "%s: PMU Hardware doesn't support sampling/overflow-interrupts. Try 'perf stat'", |