| /*- |
| * Copyright (c) 1997 The NetBSD Foundation, Inc. |
| * All rights reserved. |
| * |
| * This code is derived from software contributed to The NetBSD Foundation |
| * by Neil A. Carson and Mark Brinicombe |
| * |
| * 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. All advertising materials mentioning features or use of this software |
| * must display the following acknowledgement: |
| * This product includes software developed by the NetBSD |
| * Foundation, Inc. and its contributors. |
| * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. |
| * |
| * Adapted for uClibc from NetBSD bcopy.S,v 1.2 1997/10/09 |
| * by Erik Andersen <andersen@codepoet.org> |
| */ |
| |
| /* bcopy = memcpy/memmove with arguments reversed. */ |
| |
| #include <features.h> |
| #include <bits/arm_asm.h> |
| |
| #ifdef __UCLIBC_SUSV3_LEGACY__ |
| |
| .text |
| .global bcopy |
| .type bcopy,%function |
| .align 4 |
| |
| #if defined(__thumb__) && !defined(__thumb2__) |
| .thumb_func |
| bcopy: |
| push {r2, lr} |
| mov ip, r0 |
| mov r0, r1 |
| mov r1, ip |
| bl _memcpy |
| POP_RET |
| #else |
| bcopy: |
| /* switch the source and destination registers */ |
| eor r0, r1, r0 |
| eor r1, r0, r1 |
| eor r0, r1, r0 |
| b _memcpy /* (PLT) */ |
| #endif |
| |
| .size bcopy,.-bcopy |
| |
| #endif |