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perf evsel: display dmesg command of showing a hardcoded path

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In non-FHS compliant distros like NixOS, nothing resides in `/bin`
and `/usr/bin`. Instead dynamically symlinked into
`/run/current-system/sw/bin/`, the executable resides in `/nix/store`.

With this patch,`/bin` prefix from the dmesg command in the error
message is stripped.

Link: https://github.com/NixOS/nixpkgs/pull/258027

Signed-off-by: Masum Reza <masumrezarock100@gmail.com>
Cc: Yunseong Kim <yskelg@gmail.com>
Cc: Ze Gao <zegao2021@gmail.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Link: https://lore.kernel.org/r/20240922112619.149429-1-masumrezarock100@gmail.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Masum Reza 2024-09-22 16:56:16 +05:30 committed by Namhyung Kim
parent eb0a59e9e1
commit f115506d2c
1 changed files with 1 additions and 1 deletions
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2
tools/perf/util/evsel.c
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@ -3415,7 +3415,7 @@ int evsel__open_strerror(struct evsel *evsel, struct target *target,
return scnprintf(msg, size,
"The sys_perf_event_open() syscall returned with %d (%s) for event (%s).\n"
"/bin/dmesg | grep -i perf may provide additional information.\n",
"\"dmesg | grep -i perf\" may provide additional information.\n",
err, str_error_r(err, sbuf, sizeof(sbuf)), evsel__name(evsel));
}