linux-kernel - [PATCH] perf diff: Add kallsyms option

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Message-Id: <1427212317-7018-1-git-send-email-dsahern@gmail.com>
Date:	Tue, 24 Mar 2015 09:51:57 -0600
From:	David Ahern <dsahern@...il.com>
To:	acme@...nel.org
Cc:	linux-kernel@...r.kernel.org, David Ahern <dsahern@...il.com>,
	Jiri Olsa <jolsa@...hat.com>
Subject: [PATCH] perf diff: Add kallsyms option

Required for off-box analysis to convert kernel addresses.

Signed-off-by: David Ahern <dsahern@...il.com>
Cc: Jiri Olsa <jolsa@...hat.com>
---
 tools/perf/Documentation/perf-diff.txt | 3 +++
 tools/perf/builtin-diff.c              | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/tools/perf/Documentation/perf-diff.txt b/tools/perf/Documentation/perf-diff.txt
index 518266192d67..d1deb573877f 100644
--- a/tools/perf/Documentation/perf-diff.txt
+++ b/tools/perf/Documentation/perf-diff.txt
@@ -31,6 +31,9 @@ OPTIONS
 --dump-raw-trace::
         Dump raw trace in ASCII.
 
+--kallsyms=<file>::
+        kallsyms pathname
+
 -m::
 --modules::
         Load module symbols. WARNING: use only with -k and LIVE kernel
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 473887d1d61a..df6307b4050a 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -791,6 +791,8 @@ static const struct option options[] = {
 	OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
 		    "dump raw trace in ASCII"),
 	OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
+	OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name,
+		   "file", "kallsyms pathname"),
 	OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
 		    "load module symbols - WARNING: use only with -k and LIVE kernel"),
 	OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
-- 
2.2.1

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