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This commit is contained in:
fslongjin
2022-07-12 20:39:33 +08:00
parent a5ce84c26e
commit 39a09ffd72
4 changed files with 237 additions and 10 deletions
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13
kernel/common/glib.h
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@ -283,13 +283,6 @@ int strcmp(char *FirstPart, char *SecondPart)
return __res;
}
// void *memset_c(void *dst, unsigned char c, ul n)
// {
// unsigned char *s = (unsigned char *)dst;
// for (int i = 0; i < n; ++i)
// s[i] = c;
// return dst;
// }
// 从io口读入8个bit
unsigned char io_in8(unsigned short port)
@ -541,7 +534,7 @@ static inline uint64_t copy_to_user(void *dst, void *src, uint64_t size)
*/
long strnlen_user(const char *src, unsigned long maxlen);
char *strncpy(char *Dest, const char *Src, long Count)
char *strncpy(char *dst, const char *src, long count)
{
__asm__ __volatile__("cld \n\t"
"1: \n\t"
@ -555,9 +548,9 @@ char *strncpy(char *Dest, const char *Src, long Count)
"stosb \n\t"
"2: \n\t"
:
: "S"(Src), "D"(Dest), "c"(Count)
: "S"(src), "D"(dst), "c"(count)
: "ax", "memory");
return Dest;
return dst;
}
long strncpy_from_user(char *dst, const char *src, unsigned long size)