u-boot/arch/riscv/include/asm/string.h
Heinrich Schuchardt 8f0dc4cfd1 riscv: assembler versions of memcpy, memmove, memset
Provide optimized versions of memcpy(), memmove(), memset() copied from
the Linux kernel.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2021-04-08 15:37:29 +08:00

43 lines
1.2 KiB
C

/*
* Copyright (C) 2011 Andes Technology Corporation
* Copyright (C) 2010 Shawn Lin (nobuhiro@andestech.com)
* Copyright (C) 2011 Macpaul Lin (macpaul@andestech.com)
* Copyright (C) 2017 Rick Chen (rick@andestech.com)
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#ifndef __ASM_RISCV_STRING_H
#define __ASM_RISCV_STRING_H
/*
* We don't do inline string functions, since the
* optimised inline asm versions are not small.
*/
#undef __HAVE_ARCH_STRRCHR
#undef __HAVE_ARCH_STRCHR
#undef __HAVE_ARCH_MEMCHR
#undef __HAVE_ARCH_MEMZERO
#undef __HAVE_ARCH_MEMCPY
#if CONFIG_IS_ENABLED(USE_ARCH_MEMCPY)
#define __HAVE_ARCH_MEMCPY
#endif
extern void *memcpy(void *, const void *, __kernel_size_t);
#undef __HAVE_ARCH_MEMMOVE
#if CONFIG_IS_ENABLED(USE_ARCH_MEMMOVE)
#define __HAVE_ARCH_MEMMOVE
#endif
extern void *memmove(void *, const void *, __kernel_size_t);
#undef __HAVE_ARCH_MEMZERO
#if CONFIG_IS_ENABLED(USE_ARCH_MEMSET)
#define __HAVE_ARCH_MEMSET
#endif
extern void *memset(void *, int, __kernel_size_t);
#endif /* __ASM_RISCV_STRING_H */