From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- arch/m68k/include/asm/string.h | 74 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 arch/m68k/include/asm/string.h (limited to 'arch/m68k/include/asm/string.h') diff --git a/arch/m68k/include/asm/string.h b/arch/m68k/include/asm/string.h new file mode 100644 index 000000000..f759d944c --- /dev/null +++ b/arch/m68k/include/asm/string.h @@ -0,0 +1,74 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _M68K_STRING_H_ +#define _M68K_STRING_H_ + +#include +#include + +#define __HAVE_ARCH_STRNLEN +static inline size_t strnlen(const char *s, size_t count) +{ + const char *sc = s; + + asm volatile ("\n" + "1: subq.l #1,%1\n" + " jcs 2f\n" + " tst.b (%0)+\n" + " jne 1b\n" + " subq.l #1,%0\n" + "2:" + : "+a" (sc), "+d" (count)); + return sc - s; +} + +#define __HAVE_ARCH_STRNCPY +static inline char *strncpy(char *dest, const char *src, size_t n) +{ + char *xdest = dest; + + asm volatile ("\n" + " jra 2f\n" + "1: move.b (%1),(%0)+\n" + " jeq 2f\n" + " addq.l #1,%1\n" + "2: subq.l #1,%2\n" + " jcc 1b\n" + : "+a" (dest), "+a" (src), "+d" (n) + : : "memory"); + return xdest; +} + +#ifndef CONFIG_COLDFIRE +#define __HAVE_ARCH_STRCMP +static inline int strcmp(const char *cs, const char *ct) +{ + char res; + + asm ("\n" + "1: move.b (%0)+,%2\n" /* get *cs */ + " cmp.b (%1)+,%2\n" /* compare a byte */ + " jne 2f\n" /* not equal, break out */ + " tst.b %2\n" /* at end of cs? */ + " jne 1b\n" /* no, keep going */ + " jra 3f\n" /* strings are equal */ + "2: sub.b -(%1),%2\n" /* *cs - *ct */ + "3:" + : "+a" (cs), "+a" (ct), "=d" (res)); + return res; +} +#endif /* CONFIG_COLDFIRE */ + +#define __HAVE_ARCH_MEMMOVE +extern void *memmove(void *, const void *, __kernel_size_t); + +#define memcmp(d, s, n) __builtin_memcmp(d, s, n) + +#define __HAVE_ARCH_MEMSET +extern void *memset(void *, int, __kernel_size_t); +#define memset(d, c, n) __builtin_memset(d, c, n) + +#define __HAVE_ARCH_MEMCPY +extern void *memcpy(void *, const void *, __kernel_size_t); +#define memcpy(d, s, n) __builtin_memcpy(d, s, n) + +#endif /* _M68K_STRING_H_ */ -- cgit v1.2.3