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From: Changbin Du <changbin.du@huawei.com>
To: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>
CC: Mark Rutland <mark.rutland@arm.com>,
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<linux-perf-users@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Hui Wang <hw.huiwang@huawei.com>,
Changbin Du <changbin.du@huawei.com>
Subject: [PATCH] perf: unwind: suppress massive unsupported target platform
errors
Date: Wed, 26 Apr 2023 11:22:46 +0800
Message-ID: <20230426032246.3608596-1-changbin.du@huawei.com>
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perf: unwind: suppress massive unsupported target platform errors
|
|
Commit Message
Changbin Du
April 26, 2023, 3:22 a.m. UTC
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>
---
tools/perf/util/unwind-libunwind.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Comments
Em Wed, Apr 26, 2023 at 11:22:46AM +0800, Changbin Du escreveu: > 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. Thanks, applied. - Arnaldo > Signed-off-by: Changbin Du <changbin.du@huawei.com> > --- > tools/perf/util/unwind-libunwind.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c > index 509c287ee762..e95adbedf6ed 100644 > --- a/tools/perf/util/unwind-libunwind.c > +++ b/tools/perf/util/unwind-libunwind.c > @@ -54,7 +54,7 @@ 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: > -- > 2.25.1 >
diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c index 509c287ee762..e95adbedf6ed 100644 --- a/tools/perf/util/unwind-libunwind.c +++ b/tools/perf/util/unwind-libunwind.c @@ -54,7 +54,7 @@ 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: