mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-26 12:41:05 +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
92 lines
2.8 KiB
C
92 lines
2.8 KiB
C
/* Copyright (C) 2002-2019 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
|
|
|
|
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/>. */
|
|
|
|
#include <stdlib.h>
|
|
#include "pthreadP.h"
|
|
|
|
|
|
void
|
|
__cleanup_fct_attribute
|
|
__pthread_register_cancel_defer (__pthread_unwind_buf_t *buf)
|
|
{
|
|
struct pthread_unwind_buf *ibuf = (struct pthread_unwind_buf *) buf;
|
|
struct pthread *self = THREAD_SELF;
|
|
|
|
/* Store old info. */
|
|
ibuf->priv.data.prev = THREAD_GETMEM (self, cleanup_jmp_buf);
|
|
ibuf->priv.data.cleanup = THREAD_GETMEM (self, cleanup);
|
|
|
|
int cancelhandling = THREAD_GETMEM (self, cancelhandling);
|
|
|
|
/* Disable asynchronous cancellation for now. */
|
|
if (__glibc_unlikely (cancelhandling & CANCELTYPE_BITMASK))
|
|
while (1)
|
|
{
|
|
int curval = THREAD_ATOMIC_CMPXCHG_VAL (self, cancelhandling,
|
|
cancelhandling
|
|
& ~CANCELTYPE_BITMASK,
|
|
cancelhandling);
|
|
if (__glibc_likely (curval == cancelhandling))
|
|
/* Successfully replaced the value. */
|
|
break;
|
|
|
|
/* Prepare for the next round. */
|
|
cancelhandling = curval;
|
|
}
|
|
|
|
ibuf->priv.data.canceltype = (cancelhandling & CANCELTYPE_BITMASK
|
|
? PTHREAD_CANCEL_ASYNCHRONOUS
|
|
: PTHREAD_CANCEL_DEFERRED);
|
|
|
|
/* Store the new cleanup handler info. */
|
|
THREAD_SETMEM (self, cleanup_jmp_buf, (struct pthread_unwind_buf *) buf);
|
|
}
|
|
|
|
|
|
void
|
|
__cleanup_fct_attribute
|
|
__pthread_unregister_cancel_restore (__pthread_unwind_buf_t *buf)
|
|
{
|
|
struct pthread *self = THREAD_SELF;
|
|
struct pthread_unwind_buf *ibuf = (struct pthread_unwind_buf *) buf;
|
|
|
|
THREAD_SETMEM (self, cleanup_jmp_buf, ibuf->priv.data.prev);
|
|
|
|
int cancelhandling;
|
|
if (ibuf->priv.data.canceltype != PTHREAD_CANCEL_DEFERRED
|
|
&& ((cancelhandling = THREAD_GETMEM (self, cancelhandling))
|
|
& CANCELTYPE_BITMASK) == 0)
|
|
{
|
|
while (1)
|
|
{
|
|
int curval = THREAD_ATOMIC_CMPXCHG_VAL (self, cancelhandling,
|
|
cancelhandling
|
|
| CANCELTYPE_BITMASK,
|
|
cancelhandling);
|
|
if (__glibc_likely (curval == cancelhandling))
|
|
/* Successfully replaced the value. */
|
|
break;
|
|
|
|
/* Prepare for the next round. */
|
|
cancelhandling = curval;
|
|
}
|
|
|
|
CANCELLATION_P (self);
|
|
}
|
|
}
|