From: Masami Hiramatsu <mhiramat@kernel.org>
To: Steven Rostedt <rostedt@goodmis.org>, Jonathan Corbet <corbet@lwn.net>
Cc: mhiramat@kernel.org, linux-kernel@vger.kernel.org,
linux-doc@vger.kernel.org, Randy Dunlap <rdunlap@infradead.org>,
Ingo Molnar <mingo@kernel.org>
Subject: [PATCH v2 5/6] Documentation: tracing: Add %return suffix description
Date: Tue, 1 Sep 2020 16:57:20 +0900 [thread overview]
Message-ID: <159894704033.1478826.8727007789230325537.stgit@devnote2> (raw)
In-Reply-To: <159894698993.1478826.2813843560314595660.stgit@devnote2>
Add a description of the %return suffix option for kprobe tracer.
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
Changes in v2
- Use a tab for indentation as other lines do.
---
Documentation/trace/kprobetrace.rst | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/trace/kprobetrace.rst b/Documentation/trace/kprobetrace.rst
index c1709165c553..a18eb97a263c 100644
--- a/Documentation/trace/kprobetrace.rst
+++ b/Documentation/trace/kprobetrace.rst
@@ -30,6 +30,7 @@ Synopsis of kprobe_events
p[:[GRP/]EVENT] [MOD:]SYM[+offs]|MEMADDR [FETCHARGS] : Set a probe
r[MAXACTIVE][:[GRP/]EVENT] [MOD:]SYM[+0] [FETCHARGS] : Set a return probe
+ p:[GRP/]EVENT] [MOD:]SYM[+0]%return [FETCHARGS] : Set a return probe
-:[GRP/]EVENT : Clear a probe
GRP : Group name. If omitted, use "kprobes" for it.
@@ -37,6 +38,7 @@ Synopsis of kprobe_events
based on SYM+offs or MEMADDR.
MOD : Module name which has given SYM.
SYM[+offs] : Symbol+offset where the probe is inserted.
+ SYM%return : Return address of the symbol
MEMADDR : Address where the probe is inserted.
MAXACTIVE : Maximum number of instances of the specified function that
can be probed simultaneously, or 0 for the default value
next prev parent reply other threads:[~2020-09-01 7:57 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-01 7:56 [PATCH v2 0/6] tracing/boot: Add new options for tracing specific period Masami Hiramatsu
2020-09-01 7:56 ` [PATCH v2 1/6] kprobes: tracing/kprobes: Fix to kill kprobes on initmem after boot Masami Hiramatsu
2020-09-01 7:56 ` [PATCH v2 2/6] tracing/boot: Add per-instance tracing_on option support Masami Hiramatsu
2020-09-01 7:57 ` [PATCH v2 3/6] Documentation: tracing: Add tracing_on option to boot-time tracer Masami Hiramatsu
2020-09-01 7:57 ` [PATCH v2 4/6] tracing/kprobes: Support perf-style return probe Masami Hiramatsu
2020-09-10 0:49 ` Masami Hiramatsu
2020-09-01 7:57 ` Masami Hiramatsu [this message]
2020-09-01 7:57 ` [PATCH v2 6/6] Documentation: tracing: boot: Add an example of tracing function-calls Masami Hiramatsu
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