linux-kernel - [PATCH 03/13] perf annotate browser: Use the disasm

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Message-Id: <1334867644-2722-4-git-send-email-acme@infradead.org>
Date:	Thu, 19 Apr 2012 17:33:58 -0300
From:	Arnaldo Carvalho de Melo <acme@...radead.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Mike Galbraith <efault@....de>,
	Namhyung Kim <namhyung@...il.com>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Stephane Eranian <eranian@...gle.com>
Subject: [PATCH 03/13] perf annotate browser: Use the disasm_line instruction name and operand fields

From: Arnaldo Carvalho de Melo <acme@...hat.com>

No need to reparse it everytime.

Cc: David Ahern <dsahern@...il.com>
Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Mike Galbraith <efault@....de>
Cc: Namhyung Kim <namhyung@...il.com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Stephane Eranian <eranian@...gle.com>
Link: http://lkml.kernel.org/n/tip-90ncot487p4h5rzkn8h2whou@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/ui/browsers/annotate.c |   29 ++++++++++-------------------
 1 file changed, 10 insertions(+), 19 deletions(-)

diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index bc540b1..0bc3e65 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -260,22 +260,16 @@ static bool annotate_browser__callq(struct annotate_browser *browser,
 				    void *arg, int delay_secs)
 {
 	struct map_symbol *ms = browser->b.priv;
+	struct disasm_line *dl = browser->selection;
 	struct symbol *sym = ms->sym;
 	struct annotation *notes;
 	struct symbol *target;
-	char *s = strstr(browser->selection->line, "callq ");
 	u64 ip;
 
-	if (s == NULL)
+	if (strcmp(dl->name, "callq"))
 		return false;
 
-	s = strchr(s, ' ');
-	if (s++ == NULL) {
-		ui_helpline__puts("Invallid callq instruction.");
-		return true;
-	}
-
-	ip = strtoull(s, NULL, 16);
+	ip = strtoull(dl->operands, NULL, 16);
 	ip = ms->map->map_ip(ms->map, ip);
 	target = map__find_symbol(ms->map, ip, NULL);
 	if (target == NULL) {
@@ -321,22 +315,19 @@ struct disasm_line *annotate_browser__find_offset(struct annotate_browser *brows
 
 static bool annotate_browser__jump(struct annotate_browser *browser)
 {
-	const char *jumps[] = { "je ", "jne ", "ja ", "jmpq ", "js ", "jmp ", NULL };
-	struct disasm_line *dl;
+	const char *jumps[] = { "je", "jne", "ja", "jmpq", "js", "jmp", NULL };
+	struct disasm_line *dl = browser->selection;
 	s64 idx, offset;
-	char *s = NULL;
+	char *s;
 	int i = 0;
 
-	while (jumps[i]) {
-		s = strstr(browser->selection->line, jumps[i++]);
-		if (s)
-			break;
-	}
+	while (jumps[i] && strcmp(dl->name, jumps[i]))
+		++i;
 
-	if (s == NULL)
+	if (jumps[i] == NULL)
 		return false;
 
-	s = strchr(s, '+');
+	s = strchr(dl->operands, '+');
 	if (s++ == NULL) {
 		ui_helpline__puts("Invallid jump instruction.");
 		return true;
-- 
1.7.9.2.358.g22243

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