forked from len0rd/rockbox
6ea328f0f1
Even though ARMv7-M has a hardware divider, 64-bit division is
handled in software and needs a div0 handler. The libgcc routines
call __aeabi_{i,l}div0 so we alias those to __div0.
Change-Id: I5152c43d39e25e03f31404753f13978a614aca06
55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2009 by Michael Sevakis
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*
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* Miscellaneous compiler support routines.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied
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*
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****************************************************************************/
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#include "plugin.h"
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#if defined(ARM_NEED_DIV0)
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void __attribute__((naked)) __div0(void)
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{
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asm volatile("bx %0" : : "r"(rb->__div0));
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}
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#if defined(CPU_ARM_MICRO)
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void __aeabi_idiv0(void) __attribute__((alias("__div0")));
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void __aeabi_ldiv0(void) __attribute__((alias("__div0")));
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#endif
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#endif
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void *memcpy(void *dest, const void *src, size_t n)
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{
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return rb->memcpy(dest, src, n);
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}
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void *memset(void *dest, int c, size_t n)
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{
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return rb->memset(dest, c, n);
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}
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void *memmove(void *dest, const void *src, size_t n)
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{
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return rb->memmove(dest, src, n);
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}
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int memcmp(const void *s1, const void *s2, size_t n)
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{
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return rb->memcmp(s1, s2, n);
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}
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