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author | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
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committer | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
commit | 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch) | |
tree | 4470480d904b65cf14ca524f96f79eca818c3eaf /nptl/libc_pthread_init.c | |
parent | 199fc19d3aaaf57944ef036e15904febe877fc93 (diff) | |
download | glibc-zack/build-layout-experiment.tar glibc-zack/build-layout-experiment.tar.gz glibc-zack/build-layout-experiment.tar.bz2 glibc-zack/build-layout-experiment.zip |
Prepare for radical source tree reorganization.zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).
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 |