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author | Ulrich Drepper <drepper@redhat.com> | 2002-12-12 10:28:11 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2002-12-12 10:28:11 +0000 |
commit | 14e7aeceff58b18f970126e1562b0dbf340e2d6c (patch) | |
tree | d2f9c7bea22ec0d4d8617a2bd068c9f5ca0a9678 /nptl/sysdeps/unix/sysv/linux/libc_pthread_init.c | |
parent | 688e7bfe2b069ade0353cc41ba1582d12d897714 (diff) | |
download | glibc-14e7aeceff58b18f970126e1562b0dbf340e2d6c.tar.gz glibc-14e7aeceff58b18f970126e1562b0dbf340e2d6c.tar.xz glibc-14e7aeceff58b18f970126e1562b0dbf340e2d6c.zip |
Update.
2002-12-12 Ulrich Drepper <drepper@redhat.com> * sysdeps/unix/sysv/linux/fork-gen.c: Renamed to... * sysdeps/unix/sysv/linux/libc_pthread_init.c: ...this. Initialize __libc_locking_needed. * init.c (__pthread_initialize_minimal): Call __libc_pthread_init instead of __register_pthread_fork_handler. * sysdeps/pthread/bits/libc-lock.h: Declare __libc_locking_needed. * sysdeps/unix/sysv/linux/Makefile (sysdep_routimes): Replace fork-gen with libc_pthread_init. * sysdeps/unix/sysv/linux/Versions: Use __libc_pthread_init instead of __register_pthread_fork_handler. * sysdeps/unix/sysv/linux/fork.h: Declare __libc_pthread_init instead of __register_pthread_fork_handler. * sysdeps/unix/sysv/linux/i386/lowlevellock.h: Use __libc_locking_needed to determine whether lock prefix can be avoided. * sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S: Likewise.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/libc_pthread_init.c')
-rw-r--r-- | nptl/sysdeps/unix/sysv/linux/libc_pthread_init.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/libc_pthread_init.c b/nptl/sysdeps/unix/sysv/linux/libc_pthread_init.c new file mode 100644 index 0000000000..d7f1c03b5e --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/libc_pthread_init.c @@ -0,0 +1,47 @@ +/* Copyright (C) 2002 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <list.h> +#include "fork.h" +#include <bits/libc-lock.h> + + +static struct fork_handler pthread_child_handler; + +/* Global variable signalled when locking is needed. */ +int __libc_locking_needed; + + +void +__libc_pthread_init (ptr, reclaim) + unsigned long int *ptr; + void (*reclaim) (void); +{ + /* Remember the pointer to the generation counter in libpthread. */ + __fork_generation_pointer = ptr; + + /* Called by a child after fork. */ + pthread_child_handler.handler = reclaim; + + /* The fork handler needed by libpthread. */ + list_add_tail (&pthread_child_handler.list, &__fork_child_list); + + /* Signal the internal locking code that locking is needed now. */ + __libc_locking_needed = 1; +} |