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| author |   Li Huafei <lihuafei1@huawei.com> | 2021-07-26 20:38:53 +0800 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-08-02 09:56:18 -0300 |
| commit | 4502da0efbdd3119fb94a491fa90c6d761bbed92 (patch) | |
| tree | b168a2ed5080111c9f60f0574bd523a0fa083b6c | |
| parent | perf beauty: Reuse the generic arch errno switch (diff) | |
| download | linux-dev-4502da0efbdd3119fb94a491fa90c6d761bbed92.tar.xz linux-dev-4502da0efbdd3119fb94a491fa90c6d761bbed92.zip | |
perf env: Normalize aarch64.* and arm64.* to arm64 in normalize_arch()
On my aarch64 big endian machine, the perf annotate does not work.
# perf annotate
Percent | Source code & Disassembly of [kernel.kallsyms] for cycles (253 samples, percent: local period)
--------------------------------------------------------------------------------------------------------------
Percent | Source code & Disassembly of [kernel.kallsyms] for cycles (1 samples, percent: local period)
------------------------------------------------------------------------------------------------------------
Percent | Source code & Disassembly of [kernel.kallsyms] for cycles (47 samples, percent: local period)
-------------------------------------------------------------------------------------------------------------
...
This is because the arch_find() function uses the normalized architecture
name provided by normalize_arch(), and my machine's architecture name
aarch64_be is not normalized to arm64. Like other architectures such as
arm and powerpc, we can fuzzy match the architecture names associated with
aarch64.* and normalize them.
It seems that there is also arm64_be architecture name, which we also
normalize to arm64.
Signed-off-by: Li Huafei <lihuafei1@huawei.com>
Reviewed-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Dengcheng Zhu <dzhu@wavecomp.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin Liška <mliska@suse.cz>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Zhang Jinhao <zhangjinhao2@huawei.com>
Link: http //lore.kernel.org/lkml/20210726123854.13463-1-lihuafei1@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/env.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c index cec2e6cad8aa..ab341050be46 100644 --- a/tools/perf/util/env.c +++ b/tools/perf/util/env.c @@ -349,7 +349,7 @@ static const char *normalize_arch(char *arch) return "x86"; if (!strcmp(arch, "sun4u") || !strncmp(arch, "sparc", 5)) return "sparc"; - if (!strcmp(arch, "aarch64") || !strcmp(arch, "arm64")) + if (!strncmp(arch, "aarch64", 7) || !strncmp(arch, "arm64", 5)) return "arm64"; if (!strncmp(arch, "arm", 3) || !strcmp(arch, "sa110")) return "arm"; |