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authorUlrich Drepper <drepper@redhat.com>1998-03-18 14:42:25 +0000
committerUlrich Drepper <drepper@redhat.com>1998-03-18 14:42:25 +0000
commit3116126871400c8737a9df0145f66534f097c06c (patch)
tree9a41a87b932c3963a7d482ceabc8de92c69bef5b /sysdeps/arm/memset.S
parent52cda95831cdc685d74b99334a06fb1f69996dc4 (diff)
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Update.
1998-03-18 14:25  Ulrich Drepper  <drepper@cygnus.com>

	* 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  <aj@arthur.rhein-neckar.de>

	* 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  <schwab@issan.informatik.uni-dortmund.de>

	* 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  <drepper@cygnus.com>

	* 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  <schwab@issan.informatik.uni-dortmund.de>

	* 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  <pb@nexus.co.uk>

	* 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  <pb@nexus.co.uk>

	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  <pb@nexus.co.uk>

	* 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.
Diffstat (limited to 'sysdeps/arm/memset.S')
-rw-r--r--sysdeps/arm/memset.S68
1 files changed, 68 insertions, 0 deletions
diff --git a/sysdeps/arm/memset.S b/sysdeps/arm/memset.S
new file mode 100644
index 0000000000..a986d687da
--- /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 <philb@gnu.org>
+
+   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 <sysdep.h>
+
+/* 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)