linux-kernel - [PATCH 7/7] perf annotate: Make it to be able to skip unannotatable symbols

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Message-Id: <1360227734-375-8-git-send-email-namhyung@kernel.org>
Date:	Thu,  7 Feb 2013 18:02:14 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Pekka Enberg <penberg@...nel.org>,
	Andi Kleen <andi@...stfloor.org>,
	Borislav Petkov <bp@...en8.de>, Jiri Olsa <jolsa@...hat.com>,
	Namhyung Kim <namhyung.kim@....com>
Subject: [PATCH 7/7] perf annotate: Make it to be able to skip unannotatable symbols

From: Namhyung Kim <namhyung.kim@....com>

Add --skip-missing option for skipping symbols that cannot be used for
annotation.  It's the case of kernel symbols that user doesn't have a
vmlinux image file.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/builtin-annotate.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 68e3a16abd3d..2e6961ea3184 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -37,6 +37,7 @@ struct perf_annotate {
 	bool	   force, use_tui, use_stdio, use_gtk;
 	bool	   full_paths;
 	bool	   print_line;
+	bool	   skip_missing;
 	const char *sym_hist_filter;
 	const char *cpu_list;
 	DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
@@ -139,11 +140,21 @@ find_next:
 		}
 
 		if (use_browser == 2) {
-			hist_entry__gtk_annotate(he, evidx, NULL);
-			return;
+			int ret;
+
+			ret = hist_entry__gtk_annotate(he, evidx, NULL);
+			if (!ret || !ann->skip_missing)
+				return;
+
+			/* skip missing symbols */
+			nd = rb_next(nd);
 		} else if (use_browser == 1) {
 			key = hist_entry__tui_annotate(he, evidx, NULL);
 			switch (key) {
+			case -1:
+				if (!ann->skip_missing)
+					return;
+				/* fall through */
 			case K_RIGHT:
 				next = rb_next(nd);
 				break;
@@ -288,6 +299,8 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused)
 		    "print matching source lines (may be slow)"),
 	OPT_BOOLEAN('P', "full-paths", &annotate.full_paths,
 		    "Don't shorten the displayed pathnames"),
+	OPT_BOOLEAN(0, "skip-missing", &annotate.skip_missing,
+		    "Skip symbols that cannot be annotated"),
 	OPT_STRING('C', "cpu", &annotate.cpu_list, "cpu", "list of cpus to profile"),
 	OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
 		   "Look for files with symbols relative to this directory"),
-- 
1.7.11.7

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