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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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3ac0f4526d
In an effort to clarify and simplify the annotation of assembly functions in the kernel new macros have been introduced. These replace ENTRY and ENDPROC and also add a new annotation for static functions which previously had no ENTRY equivalent. Update the annotations in the library code to the new macros. Signed-off-by: Mark Brown <broonie@kernel.org> [will: Use SYM_FUNC_START_WEAK_PI] Signed-off-by: Will Deacon <will@kernel.org>
68 lines
1.2 KiB
ArmAsm
68 lines
1.2 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2013 ARM Ltd.
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* Copyright (C) 2013 Linaro.
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*
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* This code is based on glibc cortex strings work originally authored by Linaro
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* be found @
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*
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* http://bazaar.launchpad.net/~linaro-toolchain-dev/cortex-strings/trunk/
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* files/head:/src/aarch64/
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*/
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#include <linux/linkage.h>
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#include <asm/assembler.h>
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#include <asm/cache.h>
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/*
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* Copy a buffer from src to dest (alignment handled by the hardware)
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*
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* Parameters:
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* x0 - dest
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* x1 - src
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* x2 - n
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* Returns:
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* x0 - dest
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*/
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.macro ldrb1 ptr, regB, val
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ldrb \ptr, [\regB], \val
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.endm
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.macro strb1 ptr, regB, val
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strb \ptr, [\regB], \val
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.endm
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.macro ldrh1 ptr, regB, val
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ldrh \ptr, [\regB], \val
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.endm
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.macro strh1 ptr, regB, val
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strh \ptr, [\regB], \val
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.endm
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.macro ldr1 ptr, regB, val
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ldr \ptr, [\regB], \val
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.endm
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.macro str1 ptr, regB, val
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str \ptr, [\regB], \val
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.endm
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.macro ldp1 ptr, regB, regC, val
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ldp \ptr, \regB, [\regC], \val
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.endm
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.macro stp1 ptr, regB, regC, val
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stp \ptr, \regB, [\regC], \val
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.endm
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.weak memcpy
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SYM_FUNC_START_ALIAS(__memcpy)
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SYM_FUNC_START_PI(memcpy)
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#include "copy_template.S"
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ret
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SYM_FUNC_END_PI(memcpy)
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EXPORT_SYMBOL(memcpy)
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SYM_FUNC_END_ALIAS(__memcpy)
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EXPORT_SYMBOL(__memcpy)
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