/* * 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. */ #define __IN_STRING_C #include <linux/module.h>#include <linux/string.h> char *strcpy(char *dest, const char *src){ return __kernel_strcpy(dest, src);}EXPORT_SYMBOL(strcpy); void *memset(void *s, int c, size_t count){ void *xs = s; size_t temp, temp1; if (!count) return xs; c &= 0xff; c |= c << 8; c |= c << 16; if ((long)s & 1) { char *cs = s; *cs++ = c; s = cs; count--; } if (count > 2 && (long)s & 2) { short *ss = s; *ss++ = c; s = ss; count -= 2; } temp = count >> 2; if (temp) { long *ls = s; asm volatile ( " movel %1,%2\n" " andw #7,%2\n" " lsrl #3,%1\n" " negw %2\n" " jmp %%pc@(2f,%2:w:2)\n" "1: movel %3,%0@+\n" " movel %3,%0@+\n" " movel %3,%0@+\n" " movel %3,%0@+\n" " movel %3,%0@+\n" " movel %3,%0@+\n" " movel %3,%0@+\n" " movel %3,%0@+\n" "2: dbra %1,1b\n" " clrw %1\n" " subql #1,%1\n" " jpl 1b" : "=a" (ls), "=d" (temp), "=&d" (temp1) : "d" (c), "0" (ls), "1" (temp)); s = ls; } if (count & 2) { short *ss = s; *ss++ = c; s = ss; } if (count & 1) { char *cs = s; *cs = c; } return xs;}EXPORT_SYMBOL(memset); void *memcpy(void *to, const void *from, size_t n){ void *xto = to; size_t temp, temp1; if (!n) return xto; if ((long)to & 1) { char *cto = to; const char *cfrom = from; *cto++ = *cfrom++; to = cto; from = cfrom; n--; } if (n > 2 && (long)to & 2) { short *sto = to; const short *sfrom = from; *sto++ = *sfrom++; to = sto; from = sfrom; n -= 2; } temp = n >> 2; if (temp) { long *lto = to; const long *lfrom = from; asm volatile ( " movel %2,%3\n" " andw #7,%3\n" " lsrl #3,%2\n" " negw %3\n" " jmp %%pc@(1f,%3:w:2)\n" "4: movel %0@+,%1@+\n" " movel %0@+,%1@+\n" " movel %0@+,%1@+\n" " movel %0@+,%1@+\n" " movel %0@+,%1@+\n" " movel %0@+,%1@+\n" " movel %0@+,%1@+\n" " movel %0@+,%1@+\n" "1: dbra %2,4b\n" " clrw %2\n" " subql #1,%2\n" " jpl 4b" : "=a" (lfrom), "=a" (lto), "=d" (temp), "=&d" (temp1) : "0" (lfrom), "1" (lto), "2" (temp)); to = lto; from = lfrom; } if (n & 2) { short *sto = to; const short *sfrom = from; *sto++ = *sfrom++; to = sto; from = sfrom; } if (n & 1) { char *cto = to; const char *cfrom = from; *cto = *cfrom; } return xto;}EXPORT_SYMBOL(memcpy); void *memmove(void *dest, const void *src, size_t n){ void *xdest = dest; size_t temp; if (!n) return xdest; if (dest < src) { if ((long)dest & 1) { char *cdest = dest; const char *csrc = src; *cdest++ = *csrc++; dest = cdest; src = csrc; n--; } if (n > 2 && (long)dest & 2) { short *sdest = dest; const short *ssrc = src; *sdest++ = *ssrc++; dest = sdest; src = ssrc; n -= 2; } temp = n >> 2; if (temp) { long *ldest = dest; const long *lsrc = src; temp--; do *ldest++ = *lsrc++; while (temp--); dest = ldest; src = lsrc; } if (n & 2) { short *sdest = dest; const short *ssrc = src; *sdest++ = *ssrc++; dest = sdest; src = ssrc; } if (n & 1) { char *cdest = dest; const char *csrc = src; *cdest = *csrc; } } else { dest = (char *)dest + n; src = (const char *)src + n; if ((long)dest & 1) { char *cdest = dest; const char *csrc = src; *--cdest = *--csrc; dest = cdest; src = csrc; n--; } if (n > 2 && (long)dest & 2) { short *sdest = dest; const short *ssrc = src; *--sdest = *--ssrc; dest = sdest; src = ssrc; n -= 2; } temp = n >> 2; if (temp) { long *ldest = dest; const long *lsrc = src; temp--; do *--ldest = *--lsrc; while (temp--); dest = ldest; src = lsrc; } if (n & 2) { short *sdest = dest; const short *ssrc = src; *--sdest = *--ssrc; dest = sdest; src = ssrc; } if (n & 1) { char *cdest = dest; const char *csrc = src; *--cdest = *--csrc; } } return xdest;}EXPORT_SYMBOL(memmove); int memcmp(const void *cs, const void *ct, size_t count){ const unsigned char *su1, *su2; for (su1 = cs, su2 = ct; count > 0; ++su1, ++su2, count--) if (*su1 != *su2) return *su1 < *su2 ? -1 : +1; return 0;}EXPORT_SYMBOL(memcmp);
/*
* 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.
*/
#define __IN_STRING_C
#include <linux/module.h>
#include <linux/string.h>
char *strcpy(char *dest, const char *src)
{
return __kernel_strcpy(dest, src);
}
EXPORT_SYMBOL(strcpy);
void *memset(void *s, int c, size_t count)
{
void *xs = s;
size_t temp, temp1;
if (!count)
return xs;
c &= 0xff;
c |= c << 8;
c |= c << 16;
if ((long)s & 1) {
char *cs = s;
*cs++ = c;
s = cs;
count--;
}
if (count > 2 && (long)s & 2) {
short *ss = s;
*ss++ = c;
s = ss;
count -= 2;
}
temp = count >> 2;
if (temp) {
long *ls = s;
asm volatile (
" movel %1,%2\n"
" andw #7,%2\n"
" lsrl #3,%1\n"
" negw %2\n"
" jmp %%pc@(2f,%2:w:2)\n"
"1: movel %3,%0@+\n"
" movel %3,%0@+\n"
" movel %3,%0@+\n"
" movel %3,%0@+\n"
" movel %3,%0@+\n"
" movel %3,%0@+\n"
" movel %3,%0@+\n"
" movel %3,%0@+\n"
"2: dbra %1,1b\n"
" clrw %1\n"
" subql #1,%1\n"
" jpl 1b"
: "=a" (ls), "=d" (temp), "=&d" (temp1)
: "d" (c), "0" (ls), "1" (temp));
s = ls;
}
if (count & 2) {
short *ss = s;
*ss++ = c;
s = ss;
}
if (count & 1) {
char *cs = s;
*cs = c;
}
return xs;
}
EXPORT_SYMBOL(memset);
void *memcpy(void *to, const void *from, size_t n)
{
void *xto = to;
size_t temp, temp1;
if (!n)
return xto;
if ((long)to & 1) {
char *cto = to;
const char *cfrom = from;
*cto++ = *cfrom++;
to = cto;
from = cfrom;
n--;
}
if (n > 2 && (long)to & 2) {
short *sto = to;
const short *sfrom = from;
*sto++ = *sfrom++;
to = sto;
from = sfrom;
n -= 2;
}
temp = n >> 2;
if (temp) {
long *lto = to;
const long *lfrom = from;
asm volatile (
" movel %2,%3\n"
" andw #7,%3\n"
" lsrl #3,%2\n"
" negw %3\n"
" jmp %%pc@(1f,%3:w:2)\n"
"4: movel %0@+,%1@+\n"
" movel %0@+,%1@+\n"
" movel %0@+,%1@+\n"
" movel %0@+,%1@+\n"
" movel %0@+,%1@+\n"
" movel %0@+,%1@+\n"
" movel %0@+,%1@+\n"
" movel %0@+,%1@+\n"
"1: dbra %2,4b\n"
" clrw %2\n"
" subql #1,%2\n"
" jpl 4b"
: "=a" (lfrom), "=a" (lto), "=d" (temp), "=&d" (temp1)
: "0" (lfrom), "1" (lto), "2" (temp));
to = lto;
from = lfrom;
}
if (n & 2) {
short *sto = to;
const short *sfrom = from;
*sto++ = *sfrom++;
to = sto;
from = sfrom;
}
if (n & 1) {
char *cto = to;
const char *cfrom = from;
*cto = *cfrom;
}
return xto;
}
EXPORT_SYMBOL(memcpy);
void *memmove(void *dest, const void *src, size_t n)
{
void *xdest = dest;
size_t temp;
if (!n)
return xdest;
if (dest < src) {
if ((long)dest & 1) {
char *cdest = dest;
const char *csrc = src;
*cdest++ = *csrc++;
dest = cdest;
src = csrc;
n--;
}
if (n > 2 && (long)dest & 2) {
short *sdest = dest;
const short *ssrc = src;
*sdest++ = *ssrc++;
dest = sdest;
src = ssrc;
n -= 2;
}
temp = n >> 2;
if (temp) {
long *ldest = dest;
const long *lsrc = src;
temp--;
do
*ldest++ = *lsrc++;
while (temp--);
dest = ldest;
src = lsrc;
}
if (n & 2) {
short *sdest = dest;
const short *ssrc = src;
*sdest++ = *ssrc++;
dest = sdest;
src = ssrc;
}
if (n & 1) {
char *cdest = dest;
const char *csrc = src;
*cdest = *csrc;
}
} else {
dest = (char *)dest + n;
src = (const char *)src + n;
if ((long)dest & 1) {
char *cdest = dest;
const char *csrc = src;
*--cdest = *--csrc;
dest = cdest;
src = csrc;
n--;
}
if (n > 2 && (long)dest & 2) {
short *sdest = dest;
const short *ssrc = src;
*--sdest = *--ssrc;
dest = sdest;
src = ssrc;
n -= 2;
}
temp = n >> 2;
if (temp) {
long *ldest = dest;
const long *lsrc = src;
temp--;
do
*--ldest = *--lsrc;
while (temp--);
dest = ldest;
src = lsrc;
}
if (n & 2) {
short *sdest = dest;
const short *ssrc = src;
*--sdest = *--ssrc;
dest = sdest;
src = ssrc;
}
if (n & 1) {
char *cdest = dest;
const char *csrc = src;
*--cdest = *--csrc;
}
}
return xdest;
}
EXPORT_SYMBOL(memmove);
int memcmp(const void *cs, const void *ct, size_t count)
{
const unsigned char *su1, *su2;
for (su1 = cs, su2 = ct; count > 0; ++su1, ++su2, count--)
if (*su1 != *su2)
return *su1 < *su2 ? -1 : +1;
return 0;
}
EXPORT_SYMBOL(memcmp);