mirror of
https://sourceware.org/git/glibc.git
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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
108 lines
2.9 KiB
ArmAsm
108 lines
2.9 KiB
ArmAsm
/* Optimized strcpy implementation for PowerPC476.
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Copyright (C) 2010-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<https://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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/* strcpy
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Register Use
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r3:destination and return address
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r4:source address
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r10:temp destination address
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Implementation description
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Loop by checking 2 words at a time, with dlmzb. Check if there is a null
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in the 2 words. If there is a null jump to end checking to determine
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where in the last 8 bytes it is. Copy the appropriate bytes of the last
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8 according to the null position. */
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EALIGN (strcpy, 5, 0)
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neg r7,r4
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subi r4,r4,1
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clrlwi. r8,r7,29
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subi r10,r3,1
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beq L(pre_word8_loop)
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mtctr r8
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L(loop):
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lbzu r5,0x01(r4)
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cmpi cr5,r5,0x0
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stbu r5,0x01(r10)
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beq cr5,L(end_strcpy)
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bdnz L(loop)
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L(pre_word8_loop):
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subi r4,r4,3
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subi r10,r10,3
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L(word8_loop):
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lwzu r5,0x04(r4)
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lwzu r6,0x04(r4)
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dlmzb. r11,r5,r6
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bne L(byte_copy)
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stwu r5,0x04(r10)
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stwu r6,0x04(r10)
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lwzu r5,0x04(r4)
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lwzu r6,0x04(r4)
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dlmzb. r11,r5,r6
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bne L(byte_copy)
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stwu r5,0x04(r10)
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stwu r6,0x04(r10)
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lwzu r5,0x04(r4)
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lwzu r6,0x04(r4)
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dlmzb. r11,r5,r6
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bne L(byte_copy)
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stwu r5,0x04(r10)
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stwu r6,0x04(r10)
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lwzu r5,0x04(r4)
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lwzu r6,0x04(r4)
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dlmzb. r11,r5,r6
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bne L(byte_copy)
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stwu r5,0x04(r10)
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stwu r6,0x04(r10)
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b L(word8_loop)
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L(last_bytes_copy):
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stwu r5,0x04(r10)
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subi r11,r11,4
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mtctr r11
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addi r10,r10,3
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subi r4,r4,1
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L(last_bytes_copy_loop):
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lbzu r5,0x01(r4)
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stbu r5,0x01(r10)
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bdnz L(last_bytes_copy_loop)
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blr
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L(byte_copy):
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blt L(last_bytes_copy)
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mtctr r11
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addi r10,r10,3
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subi r4,r4,5
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L(last_bytes_copy_loop2):
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lbzu r5,0x01(r4)
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stbu r5,0x01(r10)
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bdnz L(last_bytes_copy_loop2)
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L(end_strcpy):
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blr
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END (strcpy)
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libc_hidden_builtin_def (strcpy)
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