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authorHelge Deller <deller@gmx.de>2019-02-06 23:21:10 +0100
committerHelge Deller <deller@gmx.de>2019-08-03 08:56:57 +0200
commit83af58f8068ea3f7b3c537c37a30887bfa585069 (patch)
treece1b09ba9adda2675dd7486bc53e4a2fb79f6853 /arch/parisc/lib/memset.c
parentec4d396b635070e0caf5888d58cb9eedc8dd73d9 (diff)
downloadlinux-83af58f8068ea3f7b3c537c37a30887bfa585069.tar.bz2
parisc: Add assembly implementations for memset, strlen, strcpy, strncpy and strcat
Add performance-optimized versions of some string functions. Signed-off-by: Helge Deller <deller@gmx.de> Tested-by: Sven Schnelle <svens@stackframe.org>
Diffstat (limited to 'arch/parisc/lib/memset.c')
-rw-r--r--arch/parisc/lib/memset.c91
1 files changed, 0 insertions, 91 deletions
diff --git a/arch/parisc/lib/memset.c b/arch/parisc/lib/memset.c
deleted file mode 100644
index 1d7929bd7642..000000000000
--- a/arch/parisc/lib/memset.c
+++ /dev/null
@@ -1,91 +0,0 @@
-/* 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;
-}