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author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2015-04-01 19:25:42 +0900 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-04-10 10:21:30 -0300 |
commit | 8cb0aa4c2db395b143cd5165586dc17677960002 (patch) | |
tree | fc15a499e0f56b1ef24436d247f3b04c2128e57d /lib | |
parent | 7afb3fab390871b1d20b1dbb94e03b8a3861cb0d (diff) | |
download | linux-8cb0aa4c2db395b143cd5165586dc17677960002.tar.bz2 |
perf probe: Check the orphaned -x option
To avoid probing in unintended binary, the orphaned -x option must be
checked and warned.
Without this patch, following command sets up the probe in the kernel.
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# perf probe -a strcpy -x ./perf
Added new event:
probe:strcpy (on strcpy)
You can now use it in all perf tools, such as:
perf record -e probe:strcpy -aR sleep 1
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But in this case, it seems that the user may want to probe in the perf
binary. With this patch, perf-probe correctly handles the orphaned -x.
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# perf probe -a strcpy -x ./perf
Error: -x/-m must follow the probe definitions.
...
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Reported-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20150401102541.17137.75477.stgit@localhost.localdomain
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions