4e062fc955
This patch enables the use of the optimized memset(), memmove() & memcpy() versions recently added on ARM64. Please note that these optimized functions are now only enabled for recent GCC versions (>= 9.4), as earlier GCC versions throw these errors: aarch64-linux-ar: warning: arch/arm/lib/memset-arm64.o: unsupported GNU_PROPERTY_TYPE (5) type: 0xc0000000 ... Signed-off-by: Stefan Roese <sr@denx.de> [trini: Make this default to off as it causes problems on some platforms still] Signed-off-by: Tom Rini <trini@konsulko.com>
58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
#ifndef __ASM_ARM_STRING_H
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#define __ASM_ARM_STRING_H
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#include <config.h>
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/*
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* We don't do inline string functions, since the
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* optimised inline asm versions are not small.
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*/
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#undef __HAVE_ARCH_STRRCHR
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extern char * strrchr(const char * s, int c);
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#undef __HAVE_ARCH_STRCHR
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extern char * strchr(const char * s, int c);
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#if CONFIG_IS_ENABLED(USE_ARCH_MEMCPY)
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#define __HAVE_ARCH_MEMCPY
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#endif
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extern void * memcpy(void *, const void *, __kernel_size_t);
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#if CONFIG_IS_ENABLED(USE_ARCH_MEMMOVE)
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#define __HAVE_ARCH_MEMMOVE
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#else
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#undef __HAVE_ARCH_MEMMOVE
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#endif
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extern void * memmove(void *, const void *, __kernel_size_t);
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#undef __HAVE_ARCH_MEMCHR
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extern void * memchr(const void *, int, __kernel_size_t);
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#undef __HAVE_ARCH_MEMZERO
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#if CONFIG_IS_ENABLED(USE_ARCH_MEMSET)
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#define __HAVE_ARCH_MEMSET
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#endif
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extern void * memset(void *, int, __kernel_size_t);
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#if 0
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extern void __memzero(void *ptr, __kernel_size_t n);
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#define memset(p,v,n) \
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({ \
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if ((n) != 0) { \
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if (__builtin_constant_p((v)) && (v) == 0) \
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__memzero((p),(n)); \
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else \
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memset((p),(v),(n)); \
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} \
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(p); \
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})
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#define memzero(p,n) ({ if ((n) != 0) __memzero((p),(n)); (p); })
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#else
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extern void memzero(void *ptr, __kernel_size_t n);
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#endif
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#endif
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