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| author | Masami Hiramatsu <mhiramat@redhat.com> | 2009-11-03 19:12:47 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-11-04 13:02:48 +0100 |
| commit | 77b44d1b7c28360910cdbd427fb62d485c08674c (patch) | |
| tree | 00db4f966b488abb88e5f3884ab2635e06f3f1d6 /kernel/trace/Kconfig | |
| parent | 91365bbe4f8c39a821f390f785d606304d6dee3c (diff) | |
| download | lwn-77b44d1b7c28360910cdbd427fb62d485c08674c.tar.gz lwn-77b44d1b7c28360910cdbd427fb62d485c08674c.zip | |
tracing/kprobes: Rename Kprobe-tracer to kprobe-event
Rename Kprobes-based event tracer to kprobes-based tracing event
(kprobe-event), since it is not a tracer but an extensible
tracing event interface.
This also changes CONFIG_KPROBE_TRACER to CONFIG_KPROBE_EVENT
and sets it y by default.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Jim Keniston <jkenisto@us.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
LKML-Reference: <20091104001247.3454.14131.stgit@harusame>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace/Kconfig')
| -rw-r--r-- | kernel/trace/Kconfig | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 15372a9f2399..f05671609a89 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -428,17 +428,22 @@ config BLK_DEV_IO_TRACE If unsure, say N. -config KPROBE_TRACER +config KPROBE_EVENT depends on KPROBES depends on X86 - bool "Trace kprobes" + bool "Enable kprobes-based dynamic events" select TRACING - select GENERIC_TRACER + default y help - This tracer probes everywhere where kprobes can probe it, and - records various registers and memories specified by user. - This also allows you to trace kprobe probe points as a dynamic - defined events. It provides per-probe event filtering interface. + This allows the user to add tracing events (similar to tracepoints) on the fly + via the ftrace interface. See Documentation/trace/kprobetrace.txt + for more details. + + Those events can be inserted wherever kprobes can probe, and record + various register and memory values. + + This option is also required by perf-probe subcommand of perf tools. If + you want to use perf tools, this option is strongly recommended. config DYNAMIC_FTRACE bool "enable/disable ftrace tracepoints dynamically" |