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Subject[tip:perf/core] perf probe: Allow of casting an array of char to string
Commit-ID:  7ce28b5b5b320e26ac6a0e352d5005bce3530e05
Gitweb: http://git.kernel.org/tip/7ce28b5b5b320e26ac6a0e352d5005bce3530e05
Author: Hyeoncheol Lee <hyc.lee@gmail.com>
AuthorDate: Tue, 11 Sep 2012 16:57:28 +0900
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Thu, 24 Jan 2013 16:40:20 -0300

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. then if it is a pointer
to char, it is casted to string. but in case of an array of char, it
isn't

Signed-off-by: H.C. Lee <hyc.lee@gmail.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/CANFS6bb75e8a_UtyAD9yF73hfXDy0N8tSjDz=a+Vna=Y8ORMHg@mail.gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.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 */

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