66 lines
2.7 KiB
C
66 lines
2.7 KiB
C
/*
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* Copyright (c) 2015 ARM Ltd
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the company may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stddef.h>
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#include <_ansi.h>
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/* According to the run-time ABI for the ARM Architecture, this
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function is allowed to corrupt only the integer core register
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permitted to be corrupted by the [AAPCS] (r0-r3, ip, lr, and
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CPSR).
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Therefore, we can't just simply use alias to support the function
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aeabi_memset for the targets with FP register. Instead, versions
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for these specific targets are written in assembler (in
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aeabi_memset-soft.S). */
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/* NOTE: This ifdef MUST match the one in aeabi_memset-soft.S. */
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#if !defined (__SOFTFP__)
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/* Defined in aeabi_memset-soft.S. */
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#else
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/* Support the alias for the __aeabi_memset which may
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assume memory alignment. */
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void __aeabi_memset4 (void *dest, size_t n, int c)
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_ATTRIBUTE ((alias ("__aeabi_memset")));
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void __aeabi_memset8 (void *dest, size_t n, int c)
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_ATTRIBUTE ((alias ("__aeabi_memset")));
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/* Support the routine __aeabi_memset. Can't alias to memset
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because it's not defined in the same translation unit. */
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void __aeabi_memset (void *dest, size_t n, int c)
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{
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/*Note that relative to ANSI memset, __aeabi_memset hase the order
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of its second and third arguments reversed. */
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extern void memset (void *dest, int c, size_t n);
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memset (dest, c, n);
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}
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#endif
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