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62 lines
2.1 KiB
ArmAsm
62 lines
2.1 KiB
ArmAsm
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/*
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Copyright (c) 2013, Raspberry Pi Foundation
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Copyright (c) 2013, RISC OS Open Ltd
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All rights reserved.
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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 are met:
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* 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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* 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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* Neither the name of the copyright holder nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING 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 <linux/linkage.h>
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#include "arm-mem.h"
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#include "memcpymove.h"
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/* Prevent the stack from becoming executable */
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#if defined(__linux__) && defined(__ELF__)
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.section .note.GNU-stack,"",%progbits
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#endif
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.text
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.arch armv6
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.object_arch armv4
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.arm
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.altmacro
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.p2align 2
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/*
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* void *memcpy(void * restrict s1, const void * restrict s2, size_t n);
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* On entry:
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* a1 = pointer to destination
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* a2 = pointer to source
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* a3 = number of bytes to copy
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* On exit:
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* a1 preserved
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*/
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.set prefetch_distance, 3
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ENTRY(mmiocpy)
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ENTRY(memcpy)
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memcpy 0
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ENDPROC(memcpy)
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ENDPROC(mmiocpy)
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