From 3116126871400c8737a9df0145f66534f097c06c Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 18 Mar 1998 14:42:25 +0000 Subject: Update. 1998-03-18 14:25 Ulrich Drepper * string/bits/string2.h: Add optimization for strdup. Always define __strsep and __strtok_r and make real names available when feature select macros are defined. 1998-03-18 Andreas Jaeger * manual/install.texi (Installation): Use i486-linux as example instead of the unsupported sunos4. (Reporting Bugs): Mention glibcbug script. (Tools for Installation): gcc 2.8.1/egcs 1.0.2 is required. 1998-03-16 Andreas Schwab * posix/wordexp-tst.sh: Make portable. Add more tests. * posix/Makefile (do-globtest do-wordexp-test): New targets. 1998-03-18 13:38 Ulrich Drepper * sysdeps/unix/sysv/linux/libc-start.c: Moved to ... * sysdeps/generic/libc-start.c: ...here, replacing former content. * sysdeps/unix/sysv/linux/Dist: Add netash/ash.h and netpacket/packet.h. * sysdeps/unix/sysv/linux/bits/socket.h: Pretty print. 1998-03-17 Andreas Schwab * sysdeps/unix/sysv/linux/bits/resource.h: Remove trailing comma in enumerator for strict standard compliance. * sysdeps/generic/bits/resource.h: Likewise. 1998-03-18 10:04 Philip Blundell * sysdeps/arm/sysdep.h (__ARM_USES_FP): Deleted. (PLTJMP): New macro. * sysdeps/arm/fpu/__longjmp.S: New file, implementation of longjmp() when floating point enabled. * sysdeps/arm/fpu/setjmp.S: Likewise for setjmp(). * sysdeps/arm/__longjmp.S: Remove floating point code. * sysdeps/arm/setjmp.S: Likewise. * sysdeps/arm/bsd-setjmp.S: Call __sigsetjmp by correct name. * sysdeps/arm/bsd-_setjmp.S: Likewise. * sysdeps/arm/memset.S: New file; optimised ARM implementation of memset(). * sysdeps/generic/setsockopt.c (setsockopt): Keep in step with prototype. 1998-03-17 16:16 Philip Blundell Based on patches from Pat Beirne and Scott Bambrough: * sysdeps/arm/__longjmp.S: Use ip, not r2, as temporary. * sysdeps/arm/bits/fenv.h: New file. * sysdeps/arm/dl-machine.h: New file. Add ELF support. * sysdeps/arm/elf/setjmp.S: Likewise. * sysdeps/arm/elf/start.S: Likewise. * sysdeps/arm/init-first.c: Likewise. * sysdeps/arm/setjmp.S: Call __sigjmp_save through PLT * sysdeps/arm/sysdep.h: Change format of .type directive. Correct comment about floating point to reflect current reality. * sysdeps/unix/arm/brk.S: Support PIC. * sysdeps/unix/arm/sysdep.S (syscall_error): Support PIC and re-entrant code. * sysdeps/unix/sysv/linux/arm/socket.S: Check correctly for error return; call syscall_error through PLT. * sysdeps/unix/sysv/linux/arm/sysdep.h (ENTRY): Correct error jump. 1998-03-04 12:01 Philip Blundell * sysdeps/unix/sysv/linux/netpacket/packet.h: New file. * sysdeps/unix/sysv/linux/netash/ash.h: Likewise. * sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Install them. --- sysdeps/arm/memset.S | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 sysdeps/arm/memset.S (limited to 'sysdeps/arm/memset.S') diff --git a/sysdeps/arm/memset.S b/sysdeps/arm/memset.S new file mode 100644 index 0000000..a986d68 --- /dev/null +++ b/sysdeps/arm/memset.S @@ -0,0 +1,68 @@ +/* Copyright (C) 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Philip Blundell + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include + +/* void *memset (dstpp, c, len) */ + +ENTRY(memset) + mov a4, a1 + cmp a3, $8 @ at least 8 bytes to do? + blt 2f + orr a2, a2, a2, lsl $8 + orr a2, a2, a2, lsl $16 +1: + tst a4, $3 @ aligned yet? + strneb a2, [a4], $1 + subne a3, a3, $1 + bne 1b + mov ip, a2 +1: + cmp a3, $8 @ 8 bytes still to do? + blt 2f + stmia a4!, {a2, ip} + sub a3, a3, $8 + cmp a3, $8 @ 8 bytes still to do? + blt 2f + stmia a4!, {a2, ip} + sub a3, a3, $8 + cmp a3, $8 @ 8 bytes still to do? + blt 2f + stmia a4!, {a2, ip} + sub a3, a3, $8 + cmp a3, $8 @ 8 bytes still to do? + stmgeia a4!, {a2, ip} + subge a3, a3, $8 + bge 1b +2: + movs a3, a3 @ anything left? + RETINSTR(moveq,pc,lr) @ nope + rsb a3, a3, $7 + add pc, pc, a3, lsl $2 + mov r0, r0 + strb a2, [a4], $1 + strb a2, [a4], $1 + strb a2, [a4], $1 + strb a2, [a4], $1 + strb a2, [a4], $1 + strb a2, [a4], $1 + strb a2, [a4], $1 + strb a2, [a4], $1 + RETINSTR(mov,pc,lr) +END(memset) -- cgit v1.1