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[tip:perf/core] perf tools: Introduce xzalloc() for detecting out of memory conditions
- From: tip-bot for Masami Hiramatsu <mhiramat at redhat dot com>
- To: linux-tip-commits at vger dot kernel dot org
- Cc: linux-kernel at vger dot kernel dot org, paulus at samba dot org, acme at redhat dot com, hpa at zytor dot com, mingo at redhat dot com, a dot p dot zijlstra at chello dot nl, efault at gmx dot de, dle-develop at lists dot sourceforge dot net, fweisbec at gmail dot com, tglx at linutronix dot de, mhiramat at redhat dot com, mingo at elte dot hu, systemtap at sources dot redhat dot com
- Date: Wed, 17 Mar 2010 11:27:35 GMT
- Subject: [tip:perf/core] perf tools: Introduce xzalloc() for detecting out of memory conditions
- Git-commit-id: a1d37d5285bcda07f9c0b80a2634ca20ab545297
- References: <20100316220521.32050.85155.stgit@localhost6.localdomain6>
- Reply-to: mingo at redhat dot com, hpa at zytor dot com, acme at redhat dot com, paulus at samba dot org, linux-kernel at vger dot kernel dot org, a dot p dot zijlstra at chello dot nl, efault at gmx dot de, dle-develop at lists dot sourceforge dot net, fweisbec at gmail dot com, tglx at linutronix dot de, mhiramat at redhat dot com, systemtap at sources dot redhat dot com, mingo at elte dot hu
Commit-ID: a1d37d5285bcda07f9c0b80a2634ca20ab545297
Gitweb: http://git.kernel.org/tip/a1d37d5285bcda07f9c0b80a2634ca20ab545297
Author: Masami Hiramatsu <mhiramat@redhat.com>
AuthorDate: Tue, 16 Mar 2010 18:05:21 -0400
Committer: Ingo Molnar <mingo@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@redhat.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20100316220521.32050.85155.stgit@localhost6.localdomain6>
[ -v2: small cleanups in surrounding code ]
Signed-off-by: Ingo Molnar <mingo@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