[PATCH] perf evsel: display dmesg command of showing a hardcoded path

Masum Reza posted 1 patch 2 months, 1 week ago
There is a newer version of this series
tools/perf/util/evsel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
[PATCH] perf evsel: display dmesg command of showing a hardcoded path
Posted by Masum Reza 2 months, 1 week ago
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
---
 tools/perf/util/evsel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index bc603193c477..7a06b7cfdc7e 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -3342,7 +3342,7 @@ 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));
 }
 
-- 
2.46.0