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Message-Id: <1452253193-30502-4-git-send-email-treeze.taeung@gmail.com>
Date: Fri, 8 Jan 2016 20:39:33 +0900
From: Taeung Song <treeze.taeung@...il.com>
To: Arnaldo Carvalho de Melo <acme@...nel.org>
Cc: linux-kernel@...r.kernel.org, Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Ingo Molnar <mingo@...nel.org>,
Taeung Song <treeze.taeung@...il.com>
Subject: [PATCH v13 03/23] perf config: Document 'buildid.dir' variable in man page
Explain 'buildid.dir' variable.
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Jiri Olsa <jolsa@...nel.org>
Signed-off-by: Taeung Song <treeze.taeung@...il.com>
---
tools/perf/Documentation/perf-config.txt | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt
index 9d752ca..8835215 100644
--- a/tools/perf/Documentation/perf-config.txt
+++ b/tools/perf/Documentation/perf-config.txt
@@ -153,6 +153,21 @@ tui.*, gtk.*::
By setting value, TUI or GTK can be enabled or not. But it is needed
that perf detects the required library for them during build.
+buildid.*::
+ buildid.dir::
+ Each executable and shared library in modern distributions comes with a
+ content based identifier that, if available, will be inserted in a
+ 'perf.data' file header to, at analysis time find what is needed to do
+ symbol resolution, code annotation, etc.
+
+ The recording tools also stores a hard link or copy in a per-user
+ directory, $HOME/.debug/, of binaries, shared libraries, /proc/kallsyms
+ and /proc/kcore files to be used at analysis time.
+
+ The buildid.dir variable can be used to either change this directory
+ cache location, or to disable it altogether. If you want to disable it,
+ set buildid.dir to /dev/null. The default is $HOME/.debug
+
SEE ALSO
--------
linkperf:perf[1]
--
2.5.0
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