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
143 lines
3.1 KiB
ArmAsm
143 lines
3.1 KiB
ArmAsm
/* memchr (str, ch, n) -- Return pointer to first occurrence of CH in STR less
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than N.
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For SPARC v7.
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Copyright (C) 1996-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jj@ultra.linux.cz> and
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David S. Miller <davem@caip.rutgers.edu>.
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This version is developed using the same algorithm as the fast C
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version which carries the following introduction:
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Based on strlen implementation by Torbjorn Granlund (tege@sics.se),
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with help from Dan Sahlin (dan@sics.se) and
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commentary by Jim Blandy (jimb@ai.mit.edu);
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adaptation to memchr suggested by Dick Karpinski (dick@cca.ucsf.edu),
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and implemented by Roland McGrath (roland@ai.mit.edu).
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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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.text
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.align 4
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ENTRY(__memchr)
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andcc %o1, 0xff, %o1
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sll %o1, 8, %g6
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andcc %o0, 3, %g0
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or %o1, %g6, %g6
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sll %g6, 16, %o3
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be 10f
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or %o3, %g6, %g2
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cmp %o2, 0
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be 9f
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sethi %hi(0x80808080), %o4
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ldub [%o0], %g4
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cmp %g4, %o1
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be 1f
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add %o0, 1, %o0
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subcc %o2, 1, %o2
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be 9f
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andcc %o0, 3, %g0
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be 4f
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or %o4, %lo(0x80808080), %o3
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ldub [%o0], %g4
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cmp %g4, %o1
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be 1f
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add %o0, 1, %o0
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subcc %o2, 1, %o2
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be 9f
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andcc %o0, 3, %g0
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be 5f
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sethi %hi(0x01010101), %o5
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ldub [%o0], %g4
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cmp %g4, %o1
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be 1f
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add %o0, 1, %o0
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subcc %o2, 1, %o2
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bne,a 7f
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and %o2, 3, %g1
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retl
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clr %o0
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1: retl
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sub %o0, 1, %o0
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10: sethi %hi(0x80808080), %o4
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or %o4, %lo(0x80808080), %o3
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4: sethi %hi(0x01010101), %o5
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5: and %o2, 3, %g1
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7: andcc %o2, 0xfffffffc, %o2
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be 0f
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or %o5, %lo(0x01010101), %g6
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ld [%o0], %g4
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6: xor %g4, %g2, %g5
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add %o0, 4, %o0
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sub %g5, %g6, %g5
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andcc %g5, %o3, %g0
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bne 8f
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subcc %o2, 4, %o2
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bne,a 6b
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ld [%o0], %g4
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0: cmp %g1, 0
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1: be 9f
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add %o0, 4, %o0
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ldub [%o0 - 4], %g4
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cmp %g4, %o1
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be 4f
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cmp %g1, 1
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be 9f
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ldub [%o0 - 3], %g4
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cmp %g4, %o1
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be 3f
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cmp %g1, 2
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be 9f
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ldub [%o0 - 2], %g4
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cmp %g4, %o1
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be 2f
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nop
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9: retl
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clr %o0
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/* Check every byte. */
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8: srl %g4, 24, %g5
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and %g5, 0xff, %g5
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cmp %g5, %o1
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be 4f
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srl %g4, 16, %g5
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and %g5, 0xff, %g5
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cmp %g5, %o1
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be 3f
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srl %g4, 8, %g5
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and %g5, 0xff, %g5
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cmp %g5, %o1
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be 2f
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and %g4, 0xff, %g5
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cmp %g5, %o1
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be 1f
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cmp %o2, 0
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bne,a 6b
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ld [%o0], %g4
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b 1b
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cmp %g1, 0
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1: retl
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sub %o0, 1, %o0
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2: retl
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sub %o0, 2, %o0
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3: retl
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sub %o0, 3, %o0
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4: retl
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sub %o0, 4, %o0
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END(__memchr)
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weak_alias (__memchr, memchr)
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libc_hidden_builtin_def (memchr)
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