restructure libc/string + libc/arch/*/string coperation regarding

(potentially) MD versions (function dependent, not filename dependent)
split out memcpy/memmove/bcopy and strchr/index/strrchr/rindex
Bring back amd64 .S versions

And the final touch: switch all architectures temporarily to MI
memcpy.c, which contains syslog + abort for overlapping copies.  A nice
harsh undefined behaviour.  We will clean the entire userland of the
remaining issues in this catagory, then switch to the optimised memcpy
which skips the memmove check.

I tried to cut this change into pieces, but testing each sub-step on
every architecture is too time consuming and mindnumbing.
ok miod

1 files changed, 0 insertions, 59 deletions

diff --git a/lib/libc/arch/vax/string/index.S b/lib/libc/arch/vax/string/index.S
deleted file mode 100644
index 1e578da4cc5..00000000000
--- a/lib/libc/arch/vax/string/index.S
+++ /dev/null
@@ -1,59 +0,0 @@
-/*	$OpenBSD: index.S,v 1.6 2013/07/05 21:10:50 miod Exp $ */
-/*
- * Copyright (c) 1980, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * 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.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
- */
-
-/*
- * Find the first occurrence of c in the string cp.
- * Return pointer to match or null pointer.
- *
- * char *
- * index(cp, c)
- *	char *cp, c;
- */
-#include "DEFS.h"
-
-/* Alas not quite twice as fast as the generic C version on a uvax2 */
-
-ENTRY(index, 0)
-	movq	4(%ap),%r0	# r0 = cp; r1 = c
-	tstb	%r1		# special case, looking for '\0'
-	jeql	3f
-1:
-	cmpb	(%r0),%r1
-	jeql	2f
-	tstb	(%r0)+
-	jneq	1b
-	clrl	%r0		# return NULL if no match
-2:
-	ret
-3:
-	tstb	(%r0)+
-	jneq	3b
-	decl	%r0
-	jbr	2b