Commit-ID: 580d9e00fdfb85e65c5097dcd739c6efcdbadc96 Gitweb: http://git.kernel.org/tip/580d9e00fdfb85e65c5097dcd739c6efcdbadc96 Author: Motohiro KOSAKI <kosaki.motohiro@xxxxxxxxxxxxxx> AuthorDate: Mon, 18 Jan 2010 21:35:05 -0500 Committer: Ingo Molnar <mingo@xxxxxxx> CommitDate: Wed, 20 Jan 2010 07:18:14 +0100 kprobetrace, doc: Shell needs single quote to use $ character Shell interprets $val as shell variable, thus we need quote if we use the echo command. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> Signed-off-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx> Cc: systemtap <systemtap@xxxxxxxxxxxxxxxxxx> Cc: DLE <dle-develop@xxxxxxxxxxxxxxxxxxxxx> LKML-Reference: <20100119023505.31880.17367.stgit@xxxxxxxxxxxxxxxxxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- Documentation/trace/kprobetrace.txt | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/trace/kprobetrace.txt b/Documentation/trace/kprobetrace.txt index f30978e..ab57f02 100644 --- a/Documentation/trace/kprobetrace.txt +++ b/Documentation/trace/kprobetrace.txt @@ -79,7 +79,7 @@ Usage examples To add a probe as a new event, write a new definition to kprobe_events as below. - echo p:myprobe do_sys_open dfd=%ax filename=%dx flags=%cx mode=+4($stack) > /sys/kernel/debug/tracing/kprobe_events + echo 'p:myprobe do_sys_open dfd=%ax filename=%dx flags=%cx mode=+4($stack)' > /sys/kernel/debug/tracing/kprobe_events This sets a kprobe on the top of do_sys_open() function with recording 1st to 4th arguments as "myprobe" event. Note, which register/stack entry is @@ -88,7 +88,7 @@ the ABI, please try to use probe subcommand of perf-tools (you can find it under tools/perf/). As this example shows, users can choose more familiar names for each arguments. - echo r:myretprobe do_sys_open $retval >> /sys/kernel/debug/tracing/kprobe_events + echo 'r:myretprobe do_sys_open $retval' >> /sys/kernel/debug/tracing/kprobe_events This sets a kretprobe on the return point of do_sys_open() function with recording return value as "myretprobe" event. -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
|