[PATCH 2/2] perf annotate: Add error log in symbol__annotate()
From: Li Huafei <hidden>
Date: 2021-07-26 12:37:44
Also in:
lkml
Subsystem:
performance events subsystem, the rest · Maintainers:
Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo, Namhyung Kim, Linus Torvalds
When users use the perf annotate feature on unsupported machines, error logs should be printed for user feedback. Signed-off-by: Li Huafei <redacted> --- tools/perf/util/annotate.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index aa04a3655236..cb280de3369f 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c@@ -2192,8 +2192,10 @@ int symbol__annotate(struct map_symbol *ms, struct evsel *evsel, return errno; args.arch = arch = arch__find(arch_name); - if (arch == NULL) + if (arch == NULL) { + pr_err("%s: unsupported arch %s\n", __func__, arch_name); return ENOTSUP; + } if (parch) *parch = arch;
--
2.17.1