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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
113 lines
3.4 KiB
C
113 lines
3.4 KiB
C
/* Copyright (C) 2003-2019 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 <jakub@redhat.com>, 2003.
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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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#ifndef _LOWLEVELLOCK_H
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#define _LOWLEVELLOCK_H 1
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#include <time.h>
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#include <sys/param.h>
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#include <bits/pthreadtypes.h>
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#include <atomic.h>
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#include <kernel-features.h>
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#include <lowlevellock-futex.h>
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static inline int
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__attribute__ ((always_inline))
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__lll_trylock (int *futex)
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{
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return atomic_compare_and_exchange_val_24_acq (futex, 1, 0) != 0;
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}
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#define lll_trylock(futex) __lll_trylock (&(futex))
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static inline int
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__attribute__ ((always_inline))
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__lll_cond_trylock (int *futex)
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{
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return atomic_compare_and_exchange_val_24_acq (futex, 2, 0) != 0;
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}
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#define lll_cond_trylock(futex) __lll_cond_trylock (&(futex))
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extern void __lll_lock_wait_private (int *futex) attribute_hidden;
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extern void __lll_lock_wait (int *futex, int private) attribute_hidden;
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static inline void
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__attribute__ ((always_inline))
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__lll_lock (int *futex, int private)
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{
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int val = atomic_compare_and_exchange_val_24_acq (futex, 1, 0);
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if (__glibc_unlikely (val != 0))
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{
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if (__builtin_constant_p (private) && private == LLL_PRIVATE)
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__lll_lock_wait_private (futex);
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else
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__lll_lock_wait (futex, private);
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}
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}
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#define lll_lock(futex, private) __lll_lock (&(futex), private)
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static inline void
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__attribute__ ((always_inline))
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__lll_cond_lock (int *futex, int private)
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{
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int val = atomic_compare_and_exchange_val_24_acq (futex, 2, 0);
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if (__glibc_unlikely (val != 0))
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__lll_lock_wait (futex, private);
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}
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#define lll_cond_lock(futex, private) __lll_cond_lock (&(futex), private)
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extern int __lll_clocklock_wait (int *futex, clockid_t, const struct timespec *,
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int private) attribute_hidden;
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static inline int
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__attribute__ ((always_inline))
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__lll_clocklock (int *futex, clockid_t clockid,
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const struct timespec *abstime, int private)
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{
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int val = atomic_compare_and_exchange_val_24_acq (futex, 1, 0);
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int result = 0;
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if (__glibc_unlikely (val != 0))
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result = __lll_clocklock_wait (futex, clockid, abstime, private);
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return result;
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}
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#define lll_clocklock(futex, clockid, abstime, private) \
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__lll_clocklock (&(futex), clockid, abstime, private)
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#define lll_unlock(lock, private) \
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((void) ({ \
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int *__futex = &(lock); \
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int __private = (private); \
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int __val = atomic_exchange_24_rel (__futex, 0); \
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if (__glibc_unlikely (__val > 1)) \
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lll_futex_wake (__futex, 1, __private); \
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}))
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#define lll_islocked(futex) \
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(futex != 0)
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/* Initializers for lock. */
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#define LLL_LOCK_INITIALIZER (0)
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#define LLL_LOCK_INITIALIZER_LOCKED (1)
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#endif /* lowlevellock.h */
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