Make both stpcpy and strcpy be assembly language implementations

on amd64.

Submitted by:	Guillaume Morin (guillaume at morinfr.org)
Reviewed by:	kib, jhb
Approved by:	re (bz)
MFC after:	1 month

1 files changed, 38 insertions, 0 deletions

diff --git a/lib/libc/amd64/string/strcpy.c b/lib/libc/amd64/string/strcpy.c
new file mode 100644
index 0000000..11a24eb
--- /dev/null
+++ b/lib/libc/amd64/string/strcpy.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright 2011 George V. Neville-Neil. All rights reserved.
+ *
+ * The compilation of software known as FreeBSD is distributed under the
+ * following terms:
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+char *__stpcpy(char * __restrict, const char * __restrict);
+
+char *
+strcpy(char * __restrict to, const char * __restrict from)
+{
+	__stpcpy(to, from);
+	return(to);
+}