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Location: vmkdrivers/BLD/build/HEADERS/92-vmkdrivers-asm-x64/vmkernel64/release/asm/string.h
95e39e5412bd
2.7 KiB
text/x-chdr
ESXi-6.0-GA
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 | #ifndef _X86_64_STRING_H_
#define _X86_64_STRING_H_
#ifdef __KERNEL__
#if defined(__VMKLNX__)
extern inline char *
#else /* !defined(__VMKLNX__) */
#define __HAVE_ARCH_STRCPY
static inline char *
#endif /* defined(__VMKLNX__) */
strcpy(char *dst, __const char *src)
{
char *retval = dst;
while((*dst++ = *src++)) {
;
}
return retval;
}
#if !defined(__VMKLNX__)
#define __HAVE_ARCH_STRNCMP
static inline int
strncmp(const char *s1, const char *s2, size_t count)
{
int res = 0;
while (count > 0) {
res = *s1 - *s2;
if (res != 0 || *s1 == 0) {
break;
}
count--;
s1++;
s2++;
}
return res;
}
#define __HAVE_ARCH_STRCAT
static inline char *
strcat(char *dst, __const char *src)
{
char *ptr=dst;
for (ptr=dst;*ptr != '\0'; ptr++) {
continue;
}
for ( ; *src!='\0'; ptr++,src++) {
*ptr = *src;
}
*ptr = '\0';
return dst;
}
#define __HAVE_ARCH_STRLEN
static inline size_t strlen(const char * s)
{
int d0;
register int __res;
__asm__ __volatile__(
"repne\n\t"
"scasb\n\t"
"notl %0\n\t"
"decl %0"
:"=c" (__res), "=&D" (d0) :"1" (s),"a" (0), "0" (0xffffffffffffffff));
return __res;
}
#define __HAVE_ARCH_STRSTR
extern char *strstr(const char *cs, const char *ct);
/* Written 2002 by Andi Kleen */
/* Only used for special circumstances. Stolen from i386/string.h */
static __always_inline void *
__inline_memcpy(void * to, const void * from, size_t n)
{
unsigned long d0, d1, d2;
__asm__ __volatile__(
"rep ; movsl\n\t"
"testb $2,%b4\n\t"
"je 1f\n\t"
"movsw\n"
"1:\ttestb $1,%b4\n\t"
"je 2f\n\t"
"movsb\n"
"2:"
: "=&c" (d0), "=&D" (d1), "=&S" (d2)
:"0" (n/4), "q" (n),"1" ((long) to),"2" ((long) from)
: "memory");
return (to);
}
/* Even with __builtin_ the compiler may decide to use the out of line
function. */
#define __HAVE_ARCH_MEMCPY 1
extern void *__memcpy(void *to, const void *from, size_t len);
#define memcpy(dst,src,len) \
({ size_t __len = (len); \
void *__ret; \
if (__builtin_constant_p(len) && __len >= 64) \
__ret = __memcpy((dst),(src),__len); \
else \
__ret = __builtin_memcpy((dst),(src),__len); \
__ret; })
#define __HAVE_ARCH_MEMSET
void *memset(void *s, int c, size_t n);
#endif /* !defined(__VMKLNX__) */
#define __HAVE_ARCH_MEMMOVE
void * memmove(void * dest,const void *src,size_t count);
#if !defined(__VMKLNX__)
int memcmp(const void * cs,const void * ct,size_t count);
#endif /* !defined(__VMKLNX__) */
size_t strlen(const char * s);
char *strcpy(char * dest,const char *src);
char *strcat(char * dest, const char * src);
#if !defined(__VMKLNX__)
int strcmp(const char * cs,const char * ct);
#endif /* !defined(__VMKLNX__) */
#endif /* __KERNEL__ */
#endif
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