memset.S

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    1 /*
    2  * Copyright (C) 2013 Andrew Turner
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  */
   27 
   28 #include <machine/asm.h>
   29 __FBSDID("$FreeBSD: releng/10.2/sys/libkern/arm/memset.S 248395 2013-03-16 23:11:55Z andrew $");
   30 
   31 #ifdef __ARM_EABI__
   32 
   33 /*
   34  * This implements
   35  *  void __aeabi_memset(void *dest, size_t len, int c)
   36  * by calling:
   37  *  void *memset(dest, c, len)
   38  *
   39  * The arguments are in r0-r2, r3 can be used as a scratch register.
   40  */
   41 ENTRY_NP(__aeabi_memset)
   42         mov     r3, r2
   43         mov     r2, r1
   44         mov     r1, r3
   45         b       memset
   46 END(__aeabi_memset)
   47 
   48 #endif
   49

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FreeBSD/Linux Kernel Cross Reference sys/libkern/arm/memset.S

FreeBSD/Linux Kernel Cross Reference
sys/libkern/arm/memset.S