linux-kernel - [PATCH] perf probe: Allow of casting an array of char to string

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Message-Id: <1348117932-786-1-git-send-email-hyc.lee@gmail.com>
Date:	Thu, 20 Sep 2012 14:12:12 +0900
From:	Hyeoncheol Lee <hyc.lee@...il.com>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Subject: [PATCH] perf probe: Allow of casting an array of char to string

Before casting a type of a variable to string,
convert_variable_type() confirms that the type is a pointer or
an array. if it is a pointer to char, it is casted to string.
but in case of an array of char, it isn't

Cc: Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
Cc: Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
Signed-off-by: Hyeoncheol Lee <hyc.lee@...il.com>
---
 tools/perf/util/probe-finder.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 1daf5c1..be03293 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -413,12 +413,12 @@ static int convert_variable_type(Dwarf_Die *vr_die,
 				   dwarf_diename(vr_die), dwarf_diename(&type));
 			return -EINVAL;
 		}
+		if (die_get_real_type(&type, &type) == NULL) {
+			pr_warning("Failed to get a type"
+				   " information.\n");
+			return -ENOENT;
+		}
 		if (ret == DW_TAG_pointer_type) {
-			if (die_get_real_type(&type, &type) == NULL) {
-				pr_warning("Failed to get a type"
-					   " information.\n");
-				return -ENOENT;
-			}
 			while (*ref_ptr)
 				ref_ptr = &(*ref_ptr)->next;
 			/* Add new reference with offset +0 */
-- 
1.7.10.4

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