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author | Ingo Molnar <mingo@kernel.org> | 2012-05-14 16:43:40 +0400 |
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committer | Ingo Molnar <mingo@kernel.org> | 2012-05-14 16:43:40 +0400 |
commit | 9cba26e66d09bf394ae5a739627a1dc8b7cae6f4 (patch) | |
tree | f03743d576a0c7826b9921ad47e70370ebe80a22 /tools/perf/Documentation | |
parent | ec83db0f78cd44c3b586ec1c3a348d1a8a389797 (diff) | |
parent | 73eff9f56e15598c8399c0b86899fd889b97f085 (diff) | |
download | linux-9cba26e66d09bf394ae5a739627a1dc8b7cae6f4.tar.xz |
Merge branch 'perf/uprobes' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/uprobes
Diffstat (limited to 'tools/perf/Documentation')
-rw-r--r-- | tools/perf/Documentation/perf-probe.txt | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf-probe.txt b/tools/perf/Documentation/perf-probe.txt index 2780d9ce48bf..b715cb71592b 100644 --- a/tools/perf/Documentation/perf-probe.txt +++ b/tools/perf/Documentation/perf-probe.txt @@ -77,7 +77,8 @@ OPTIONS -F:: --funcs:: - Show available functions in given module or kernel. + Show available functions in given module or kernel. With -x/--exec, + can also list functions in a user space executable / shared library. --filter=FILTER:: (Only for --vars and --funcs) Set filter. FILTER is a combination of glob @@ -98,6 +99,15 @@ OPTIONS --max-probes:: Set the maximum number of probe points for an event. Default is 128. +-x:: +--exec=PATH:: + Specify path to the executable or shared library file for user + space tracing. Can also be used with --funcs option. + +In absence of -m/-x options, perf probe checks if the first argument after +the options is an absolute path name. If its an absolute path, perf probe +uses it as a target module/target user space binary to probe. + PROBE SYNTAX ------------ Probe points are defined by following syntax. @@ -182,6 +192,13 @@ Delete all probes on schedule(). ./perf probe --del='schedule*' +Add probes at zfree() function on /bin/zsh + + ./perf probe -x /bin/zsh zfree or ./perf probe /bin/zsh zfree + +Add probes at malloc() function on libc + + ./perf probe -x /lib/libc.so.6 malloc or ./perf probe /lib/libc.so.6 malloc SEE ALSO -------- |