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Consolidate pthread_atfork
The pthread_atfork is similar between Linux and Hurd, only the compat version bits differs. The generic version is place at sysdeps/pthread with a common name. It also fixes an issue with Hurd license, where the static-only object did not use LGPL + exception. Checked on x86_64-linux-gnu, i686-linux-gnu, and with a build for i686-gnu.
This commit is contained in:
Adhemerval Zanella
parent
d0c4083386
commit
9f70985569
@ -121,7 +121,6 @@ libpthread-routines := pt-attr pt-attr-destroy pt-attr-getdetachstate \
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pt-sigstate-destroy \
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pt-sigstate \
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\
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old_pt-atfork \
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pt-kill \
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pt-getcpuclockid \
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\
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@ -165,9 +164,8 @@ headers := \
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distribute :=
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routines := forward libc_pthread_init alloca_cutoff pt-atfork htlfreeres
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routines := forward libc_pthread_init alloca_cutoff htlfreeres
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shared-only-routines = forward
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static-only-routines = pt-atfork
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extra-libs := libpthread
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extra-libs-others := $(extra-libs)
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@ -52,7 +52,6 @@ routines = \
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nptl_nthreads \
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nptl_setxid \
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nptlfreeres \
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old_pthread_atfork \
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old_pthread_cond_broadcast \
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old_pthread_cond_destroy \
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old_pthread_cond_init \
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@ -1,26 +0,0 @@
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/* Register fork handlers. Generic version.
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Copyright (C) 2002-2021 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 <shlib-compat.h>
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#if SHLIB_COMPAT(libpthread, GLIBC_2_12, GLIBC_2_23)
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# define __pthread_atfork __dyn_pthread_atfork
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# include "pt-atfork.c"
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# undef __pthread_atfork
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compat_symbol (libpthread, __dyn_pthread_atfork, pthread_atfork, GLIBC_2_12);
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#endif
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@ -1,41 +0,0 @@
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/* Register fork handlers. Generic version.
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Copyright (C) 2002-2021 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 <pthread.h>
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#include <pt-internal.h>
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#include <dso_handle.h>
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#include <register-atfork.h>
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/* Hide the symbol so that no definition but the one locally in the
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executable or DSO is used. */
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int
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#ifndef __pthread_atfork
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/* Don't mark the compatibility function as hidden. */
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attribute_hidden
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#endif
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__pthread_atfork (void (*prepare) (void),
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void (*parent) (void),
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void (*child) (void))
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{
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return __register_atfork (prepare, parent, child, __dso_handle);
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}
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#ifndef __pthread_atfork
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extern int pthread_atfork (void (*prepare) (void), void (*parent) (void),
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void (*child) (void)) attribute_hidden;
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weak_alias (__pthread_atfork, pthread_atfork)
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#endif
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4
sysdeps/htl/pthread_atfork_compat.h
Normal file
4
sysdeps/htl/pthread_atfork_compat.h
Normal file
@ -0,0 +1,4 @@
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/* The compat version for the dynamic pthread_atfork provided by libpthread,
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before supported __dso_handle was added. */
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#define PTHREAD_ATFORK_COMPAT_INTRODUCED GLIBC_2_12
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#define PTHREAD_ATFORK_COMPAT_OBSOLETED GLIBC_2_23
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4
sysdeps/nptl/pthread_atfork_compat.h
Normal file
4
sysdeps/nptl/pthread_atfork_compat.h
Normal file
@ -0,0 +1,4 @@
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/* The compat versions for the dynamic pthread_atfork provided by libpthread,
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before supported __dso_handle was added. */
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#define PTHREAD_ATFORK_COMPAT_INTRODUCED GLIBC_2_0
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#define PTHREAD_ATFORK_COMPAT_OBSOLETED GLIBC_2_3
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@ -29,7 +29,7 @@ endif
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ifneq (,$(filter $(subdir),htl nptl))
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headers += threads.h
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routines += thrd_current thrd_equal thrd_sleep thrd_yield
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routines += thrd_current thrd_equal thrd_sleep thrd_yield pthread_atfork
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$(libpthread-routines-var) += \
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call_once \
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@ -45,6 +45,7 @@ $(libpthread-routines-var) += \
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mtx_timedlock \
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mtx_trylock \
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mtx_unlock \
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pthread_atfork_compat \
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thrd_create \
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thrd_detach \
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thrd_exit \
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@ -134,6 +135,7 @@ tests-time64 := \
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tst-sem5-time64 \
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tst-thrd-sleep-time64 \
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static-only-routines = pthread_atfork
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# Files which must not be linked with libpthread.
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tests-nolibpthread += tst-unload
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@ -36,6 +36,7 @@
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#include "pthreadP.h"
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#include <register-atfork.h>
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#include <dso_handle.h>
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#include <register-atfork.h>
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/* Hide the symbol so that no definition but the one locally in the
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@ -1,6 +1,6 @@
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/* Copyright (C) 2002-2021 Free Software Foundation, Inc.
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/* Compat pthread_atfork implementation.
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Copyright (C) 2002-2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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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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@ -16,11 +16,13 @@
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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 <pthread_atfork_compat.h>
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#include <shlib-compat.h>
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#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_3)
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# define __pthread_atfork __dyn_pthread_atfork
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# include "pthread_atfork.c"
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# undef __pthread_atfork
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compat_symbol (libpthread, __dyn_pthread_atfork, pthread_atfork, GLIBC_2_0);
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compat_symbol (libpthread, __dyn_pthread_atfork, pthread_atfork,
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PTHREAD_ATFORK_COMPAT_INTRODUCED);
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#endif
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