From: H.J. Lu <hjl.tools@gmail.com>
Date: Thu, 9 Jun 2016 11:38:34 +0000 (-0700)
Subject: X86-64: Add dummy memcopy.h and wordcopy.c
X-Git-Tag: glibc-2.24~132
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=75437079e4c5a7416052940ca641a41ddbf6f5fd;p=thirdparty%2Fglibc.git

X86-64: Add dummy memcopy.h and wordcopy.c

Since x86-64 no longer uses memory copy functions, add dummy memcopy.h
and wordcopy.c to reduce code size.  It reduces the size of libc.so by
about 1 KB.

	* sysdeps/x86_64/memcopy.h: New file.
	* sysdeps/x86_64/wordcopy.c: Likewise.
---

diff --git a/ChangeLog b/ChangeLog
index e5a6209053d..9c417f23212 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2016-06-09  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* sysdeps/x86_64/memcopy.h: New file.
+	* sysdeps/x86_64/wordcopy.c: Likewise.
+
 2016-06-09  Florian Weimer  <fweimer@redhat.com>
 
 	Prevent GCC 6 <cstdlib> from including /usr/include/stdlib.h.
diff --git a/sysdeps/x86_64/memcopy.h b/sysdeps/x86_64/memcopy.h
new file mode 100644
index 00000000000..590b6cb16b8
--- /dev/null
+++ b/sysdeps/x86_64/memcopy.h
@@ -0,0 +1 @@
+/* X86-64 doesn't use memory copy functions.  */
diff --git a/sysdeps/x86_64/wordcopy.c b/sysdeps/x86_64/wordcopy.c
new file mode 100644
index 00000000000..590b6cb16b8
--- /dev/null
+++ b/sysdeps/x86_64/wordcopy.c
@@ -0,0 +1 @@
+/* X86-64 doesn't use memory copy functions.  */