diff options
Diffstat (limited to 'nptl/libc_pthread_init.c')
-rw-r--r-- | nptl/libc_pthread_init.c | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/nptl/libc_pthread_init.c b/nptl/libc_pthread_init.c deleted file mode 100644 index 0db7a10893..0000000000 --- a/nptl/libc_pthread_init.c +++ /dev/null @@ -1,88 +0,0 @@ -/* Copyright (C) 2002-2017 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 - <http://www.gnu.org/licenses/>. */ - -#include <unistd.h> -#include <list.h> -#include <fork.h> -#include <dl-sysdep.h> -#include <tls.h> -#include <string.h> -#include <pthreadP.h> -#include <libc-lock.h> -#include <sysdep.h> -#include <ldsodefs.h> - - -unsigned long int *__fork_generation_pointer; - - -#ifdef TLS_MULTIPLE_THREADS_IN_TCB -void -#else -extern int __libc_multiple_threads attribute_hidden; - -int * -#endif -internal_function -__libc_pthread_init (unsigned long int *ptr, void (*reclaim) (void), - const struct pthread_functions *functions) -{ - /* Remember the pointer to the generation counter in libpthread. */ - __fork_generation_pointer = ptr; - - /* Called by a child after fork. */ - __register_atfork (NULL, NULL, reclaim, NULL); - -#ifdef SHARED - /* Copy the function pointers into an array in libc. This enables - access with just one memory reference but moreso, it prevents - hijacking the function pointers with just one pointer change. We - "encrypt" the function pointers since we cannot write-protect the - array easily enough. */ - union ptrhack - { - struct pthread_functions pf; -# define NPTRS (sizeof (struct pthread_functions) / sizeof (void *)) - void *parr[NPTRS]; - } __attribute__ ((may_alias)) const *src; - union ptrhack *dest; - - src = (const void *) functions; - dest = (void *) &__libc_pthread_functions; - - for (size_t cnt = 0; cnt < NPTRS; ++cnt) - { - void *p = src->parr[cnt]; - PTR_MANGLE (p); - dest->parr[cnt] = p; - } - __libc_pthread_functions_init = 1; -#endif - -#ifndef TLS_MULTIPLE_THREADS_IN_TCB - return &__libc_multiple_threads; -#endif -} - -#ifdef SHARED -libc_freeres_fn (freeres_libptread) -{ - if (__libc_pthread_functions_init) - PTHFCT_CALL (ptr_freeres, ()); -} -#endif |