From: amodra <amodra@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 31 May 2016 11:08:54 +0000 (+0000)
Subject: Don't needlessly clear xmemdup allocated memory.
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=4f3b47d3bcf42f5cdc90a8842463cb63e31a3707;p=thirdparty%2Fgcc.git

Don't needlessly clear xmemdup allocated memory.

	* xmemdup.c (xmemdup): Use xmalloc rather than xcalloc.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@236917 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index 289617b2690d..d6b200e0ef2e 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,7 @@
+2016-05-31  Alan Modra  <amodra@gmail.com>
+
+	* xmemdup.c (xmemdup): Use xmalloc rather than xcalloc.
+
 2016-05-19  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c++/70498
diff --git a/libiberty/xmemdup.c b/libiberty/xmemdup.c
index aa56f0bf572b..4602afd7d9f6 100644
--- a/libiberty/xmemdup.c
+++ b/libiberty/xmemdup.c
@@ -1,4 +1,4 @@
-/* xmemdup.c -- Duplicate a memory buffer, using xcalloc.
+/* xmemdup.c -- Duplicate a memory buffer, using xmalloc.
    This trivial function is in the public domain.
    Jeff Garzik, September 1999.  */
 
@@ -34,6 +34,8 @@ allocated, the remaining memory is zeroed.
 PTR
 xmemdup (const PTR input, size_t copy_size, size_t alloc_size)
 {
-  PTR output = xcalloc (1, alloc_size);
+  PTR output = xmalloc (alloc_size);
+  if (alloc_size > copy_size)
+    memset ((char *) output + copy_size, 0, alloc_size - copy_size);
   return (PTR) memcpy (output, input, copy_size);
 }