From: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Tue, 29 Apr 2014 19:15:45 +0000 (-0500)
Subject: More fixes for unsafe compiler optimization
X-Git-Tag: glibc-2.20~576
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1775babf2be39c3e09eb8b855379d0aca867abeb;p=thirdparty%2Fglibc.git

More fixes for unsafe compiler optimization

GCC 4.9 -ftree-loop-distribute-patterns now may transform loops in
memcpy.  Add the alias to internal GLIBC symbol to avoid PLT creation.
---

diff --git a/ChangeLog b/ChangeLog
index 6bacb5c25d1..054072fb36c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2014-04-30  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
+
+	* * sysdeps/generic/symbol-hacks.h (memcpy): Add internal alias.
+
 2014-04-30  Yang Yingliang  <yangyingliang@huawei.com>
 
 	* nptl/pthread_cond_broadcast.c (__pthread_cond_broadcast):
diff --git a/sysdeps/generic/symbol-hacks.h b/sysdeps/generic/symbol-hacks.h
index 9eaf014ff24..6bec24b7a01 100644
--- a/sysdeps/generic/symbol-hacks.h
+++ b/sysdeps/generic/symbol-hacks.h
@@ -3,4 +3,5 @@
 #if !defined __ASSEMBLER__ && !defined NOT_IN_libc && defined SHARED
 asm ("memmove = __GI_memmove");
 asm ("memset = __GI_memset");
+asm ("memcpy = __GI_memcpy");
 #endif