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perf unwind: Suppress massive unsupported target platform errors

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When cross-analyzing perf data recorded on an another platform, massive
unsupported target platform errors are printed. So let's show this message
as warning and only once.

Signed-off-by: Changbin Du <changbin.du@huawei.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Hui Wang <hw.huiwang@huawei.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20230426032246.3608596-1-changbin.du@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Changbin Du 2023-04-26 11:22:46 +08:00 • committed by Arnaldo Carvalho de Melo
parent 69b0e11261
commit c31380140f
1 changed files with 1 additions and 1 deletions
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2
tools/perf/util/unwind-libunwind.c
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@ -56,7 +56,7 @@ int unwind__prepare_access(struct maps *maps, struct map *map, bool *initialized
}
if (!ops) {
pr_err("unwind: target platform=%s is not supported\n", arch);
pr_warning_once("unwind: target platform=%s is not supported\n", arch);
return 0;
}
out_register: