mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-28 07:04:00 +08:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
/* Copyright (C) 1991, 1997 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
/* Slight modifications for pa-risc linux - Paul Bame <bame@debian.org> */
|
|
|
|
#include <linux/types.h>
|
|
#include <asm/string.h>
|
|
|
|
#define OPSIZ (BITS_PER_LONG/8)
|
|
typedef unsigned long op_t;
|
|
|
|
void *
|
|
memset (void *dstpp, int sc, size_t len)
|
|
{
|
|
unsigned int c = sc;
|
|
long int dstp = (long int) dstpp;
|
|
|
|
if (len >= 8)
|
|
{
|
|
size_t xlen;
|
|
op_t cccc;
|
|
|
|
cccc = (unsigned char) c;
|
|
cccc |= cccc << 8;
|
|
cccc |= cccc << 16;
|
|
if (OPSIZ > 4)
|
|
/* Do the shift in two steps to avoid warning if long has 32 bits. */
|
|
cccc |= (cccc << 16) << 16;
|
|
|
|
/* There are at least some bytes to set.
|
|
No need to test for LEN == 0 in this alignment loop. */
|
|
while (dstp % OPSIZ != 0)
|
|
{
|
|
((unsigned char *) dstp)[0] = c;
|
|
dstp += 1;
|
|
len -= 1;
|
|
}
|
|
|
|
/* Write 8 `op_t' per iteration until less than 8 `op_t' remain. */
|
|
xlen = len / (OPSIZ * 8);
|
|
while (xlen > 0)
|
|
{
|
|
((op_t *) dstp)[0] = cccc;
|
|
((op_t *) dstp)[1] = cccc;
|
|
((op_t *) dstp)[2] = cccc;
|
|
((op_t *) dstp)[3] = cccc;
|
|
((op_t *) dstp)[4] = cccc;
|
|
((op_t *) dstp)[5] = cccc;
|
|
((op_t *) dstp)[6] = cccc;
|
|
((op_t *) dstp)[7] = cccc;
|
|
dstp += 8 * OPSIZ;
|
|
xlen -= 1;
|
|
}
|
|
len %= OPSIZ * 8;
|
|
|
|
/* Write 1 `op_t' per iteration until less than OPSIZ bytes remain. */
|
|
xlen = len / OPSIZ;
|
|
while (xlen > 0)
|
|
{
|
|
((op_t *) dstp)[0] = cccc;
|
|
dstp += OPSIZ;
|
|
xlen -= 1;
|
|
}
|
|
len %= OPSIZ;
|
|
}
|
|
|
|
/* Write the last few bytes. */
|
|
while (len > 0)
|
|
{
|
|
((unsigned char *) dstp)[0] = c;
|
|
dstp += 1;
|
|
len -= 1;
|
|
}
|
|
|
|
return dstpp;
|
|
}
|