mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 00:31:08 +00:00
5a82c74822
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
88 lines
2.3 KiB
ArmAsm
88 lines
2.3 KiB
ArmAsm
/* Copyright (C) 1996-2019 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 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, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
/* 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)
|
|
libc_hidden_builtin_def (strncpy)
|