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From: tip-bot for Masami Hiramatsu on 17 Mar 2010 07:30
Commit-ID: a1d37d5285bcda07f9c0b80a2634ca20ab545297
Gitweb: http://git.kernel.org/tip/a1d37d5285bcda07f9c0b80a2634ca20ab545297
Author: Masami Hiramatsu <mhiramat(a)redhat.com>
AuthorDate: Tue, 16 Mar 2010 18:05:21 -0400
Committer: Ingo Molnar <mingo(a)elte.hu>
CommitDate: Wed, 17 Mar 2010 11:32:29 +0100

perf tools: Introduce xzalloc() for detecting out of memory conditions

Introducing xzalloc() which wrapping zalloc() for detecting out
of memory conditions.

Signed-off-by: Masami Hiramatsu <mhiramat(a)redhat.com>
Cc: systemtap <systemtap(a)sources.redhat.com>
Cc: DLE <dle-develop(a)lists.sourceforge.net>
Cc: Frederic Weisbecker <fweisbec(a)gmail.com>
Cc: Arnaldo Carvalho de Melo <acme(a)redhat.com>
Cc: Paul Mackerras <paulus(a)samba.org>
Cc: Mike Galbraith <efault(a)gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra(a)chello.nl>
LKML-Reference: <20100316220521.32050.85155.stgit(a)localhost6.localdomain6>
[ -v2: small cleanups in surrounding code ]
Signed-off-by: Ingo Molnar <mingo(a)elte.hu>
---
tools/perf/util/util.h | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 0f5b2a6..5270108 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -295,6 +295,13 @@ extern void *xmemdupz(const void *data, size_t len);
extern char *xstrndup(const char *str, size_t len);
extern void *xrealloc(void *ptr, size_t size) __attribute__((weak));

+static inline void *xzalloc(size_t size)
+{
+ void *buf = xmalloc(size);
+
+ return memset(buf, 0, size);
+}
+
static inline void *zalloc(size_t size)
{
return calloc(1, size);
@@ -309,6 +316,7 @@ static inline int has_extension(const char *filename, const char *ext)
{
size_t len = strlen(filename);
size_t extlen = strlen(ext);
+
return len > extlen && !memcmp(filename + len - extlen, ext, extlen);
}

@@ -322,6 +330,7 @@ static inline int has_extension(const char *filename, const char *ext)
#undef isalnum
#undef tolower
#undef toupper
+
extern unsigned char sane_ctype[256];
#define GIT_SPACE 0x01
#define GIT_DIGIT 0x02
--
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