glibc/sysdeps/alpha/strncpy.S
Ulrich Drepper 104d0bd3ef Update.
2000-12-08  Jakub Jelinek  <jakub@redhat.com>

	* elf/dl-load.c (fillin_rpath): Don't assume there is '\0' at
	cp + len.  Compute where from dirname.
	Reported by <jreiser@BitWagon.com>.

2000-12-08  Richard Henderson  <rth@twiddle.net>

	* sysdeps/alpha/_mcount.S: Fix typo.
	* sysdeps/alpha/strncpy.S: Likewise.

	* sysdeps/alpha/alphaev6/Implies: New file.
	* sysdeps/alpha/alphaev67/Implies: New file.
	* sysdeps/alpha/alphaev67/ffs.S: New file.
	* sysdeps/alpha/alphaev67/ffsll.S: New file.
	* sysdeps/alpha/alphaev67/rawmemchr.S: New file.
	* sysdeps/alpha/alphaev67/stpcpy.S: New file.
	* sysdeps/alpha/alphaev67/stpncpy.S: New file.
	* sysdeps/alpha/rawmemchr.S: New file.
	* sysdeps/alpha/strcat.S: Tail call to __stxcpy.
	* sysdeps/alpha/strcpy.S: Likewise.

	From GMP 3.1.1:
	* sysdeps/alpha/alphaev6/addmul_1.s: New file.

	From rick.gorton@alpha-processor.com:
	* sysdeps/alpha/alphaev6/memchr.S: New file.
	* sysdeps/alpha/alphaev6/memcpy.S: New file.
	* sysdeps/alpha/alphaev6/memset.S: New file.
	* sysdeps/alpha/alphaev6/stxcpy.S: New file.
	* sysdeps/alpha/alphaev6/stxncpy.S: New file.
	* sysdeps/alpha/alphaev67/strcat.S: New file.
	* sysdeps/alpha/alphaev67/strchr.S: New file.
	* sysdeps/alpha/alphaev67/strlen.S: New file.
	* sysdeps/alpha/alphaev67/strncat.S: New file.
	* sysdeps/alpha/htonl.S: Use a shorter sequence.

2000-12-08  Jakub Jelinek  <jakub@redhat.com>

	* inet/getnameinfo.c (getnameinfo): Fix NI_NOFQDN support.
	Reported by <pspencer@fields.utoronto.ca>.

2000-12-07  Jes Sorensen  <jes@linuxcare.com>

	* sysdeps/ia64/elf/start.S (__data_start): Add __data_start variable.
	Pointed out by Hans Boehm.

2000-12-07  H.J. Lu  <hjl@gnu.org>

	* elf/dl-version.c (match_symbol): Check map->l_name[0] for printing.

2000-12-07  Andreas Jaeger  <aj@suse.de>

	* misc/error.c: Add format attributes for __error and __error_at_line.

	* nscd/dbg_log.h: Add format attribute.

2000-12-08  Ulrich Drepper  <drepper@redhat.com>

	* misc/sys/syslog.h: Add format attributes to syslog and vsyslog.
	Patch by Joseph S. Myers <jsm28@cam.ac.uk>.

	* sysdeps/generic/dl-cache.c (HWCAP_CHECK): Fix access to _dl_hwcap.
	* manual/install.texi: Recommend to set LANGUAGE=C LC_ALL=C during
2000-12-08 17:27:11 +00:00

88 lines
2.4 KiB
ArmAsm

/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
Contributed by Richard Henderson (rth@tamu.edu)
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 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. */
/* Copy no more than COUNT bytes of the null-terminated string from
SRC to DST. If SRC does not cover all of COUNT, the balance is
zeroed. */
#include <sysdep.h>
.set noat
.set noreorder
.text
ENTRY(strncpy)
ldgp gp, 0(pv)
#ifdef PROF
lda AT, _mcount
jsr AT, (AT), _mcount
#endif
.prologue 1
mov a0, v0 # set return value now
beq a2, $zerocount
jsr t9, __stxncpy # do the work of the copy
bne a2, $multiword # do we have full words left?
.align 3
subq t8, 1, t2 # e0 : guess not
subq t10, 1, t3 # .. e1 :
or t2, t8, t2 # e0 : clear the bits between the last
or t3, t10, t3 # .. e1 : written byte and the last byte in
andnot t3, t2, t3 # e0 : COUNT
zap t0, t3, t0 # e1 :
stq_u t0, 0(a0) # e0 :
ret # .. e1 :
$multiword:
subq t8, 1, t7 # e0 : clear the final bits in the prev
or t7, t8, t7 # e1 : word
zapnot t0, t7, t0 # e0 :
subq a2, 1, a2 # .. e1 :
stq_u t0, 0(a0) # e0 :
addq a0, 8, a0 # .. e1 :
beq a2, 1f # e1 :
blbc a2, 0f # e1 :
stq_u zero, 0(a0) # e0 : zero one word
subq a2, 1, a2 # .. e1 :
addq a0, 8, a0 # e0 :
beq a2, 1f # .. e1 :
0: stq_u zero, 0(a0) # e0 : zero two words
subq a2, 2, a2 # .. e1 :
stq_u zero, 8(a0) # e0 :
addq a0, 16, a0 # .. e1 :
bne a2, 0b # e1 :
unop
1: ldq_u t0, 0(a0) # e0 : clear the leading bits in the final
subq t10, 1, t7 # .. e1 : word
or t7, t10, t7 # e0 :
zap t0, t7, t0 # e1 (stall)
stq_u t0, 0(a0) # e0 :
$zerocount:
ret # .. e1 :
END(strncpy)