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c2afe83352
[USE_TLS && HAVE___THREAD]: Just include the sysdeps/generic file, which does the right thing when __thread support is available. * descr.h (struct _pthread_descr_struct) [USE_TLS && HAVE___THREAD]: Omit `p_libc_specific', `p_errnop', `p_errno', `p_h_errnop', `p_h_errno', `p_resp', and `p_res' members. * pthread.c (__pthread_initialize_minimal) [USE_TLS && HAVE___THREAD]: Don't initialize `p_errnop' and `p_h_errnop' members. (__pthread_reset_main_thread): Likewise. (__pthread_initialize_manager): Likewise. * manager.c (__pthread_manager, pthread_handle_create): Likewise. * pthread.c (pthread_initialize) [USE_TLS && HAVE___THREAD]: Don't initialize `p_resp' member. (__pthread_reset_main_thread): Likewise. * manager.c (pthread_handle_create): Likewise. * specific.c (libc_internal_tsd_set, libc_internal_tsd_get): Conditionalize these on [!(USE_TLS && HAVE___THREAD)]. * errno.c [USE_TLS && HAVE___THREAD] (__h_errno_location, __res_state): Don't define these at all. * sysdeps/i386/tls.h (INSTALL_DTV): Add parens around arguments! (INSTALL_NEW_DTV, GET_DTV): Likewise. * sysdeps/sh/tls.h (INSTALL_DTV, INSTALL_NEW_DTV, GET_DTV): Likewise. * weaks.c: Don't include <errno.h> here. 2002-08-01 Roland McGrath <roland@redhat.com> * sysdeps/i386/tls.h (TLS_DO_MODIFY_LDT): New macro, broken out of TLS_INIT_TP. (TLS_DO_SET_THREAD_AREA): New macro, uses thread_set_area syscall. (TLS_SETUP_GS_SEGMENT): New macro, try one or the other or both. (TLS_INIT_TP): Use that.
55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
/* libc-internal interface for thread-specific data. LinuxThreads version.
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Copyright (C) 1997,98,99,2001,02 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 Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef _BITS_LIBC_TSD_H
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#define _BITS_LIBC_TSD_H 1
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/* Fast thread-specific data internal to libc. */
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enum __libc_tsd_key_t { _LIBC_TSD_KEY_MALLOC = 0,
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_LIBC_TSD_KEY_DL_ERROR,
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_LIBC_TSD_KEY_RPC_VARS,
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_LIBC_TSD_KEY_N };
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#include <tls.h>
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#if USE_TLS && HAVE___THREAD
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/* When __thread works, the generic definition is what we want. */
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# include <sysdeps/generic/bits/libc-tsd.h>
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#else
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extern void *(*__libc_internal_tsd_get) (enum __libc_tsd_key_t) __THROW;
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extern int (*__libc_internal_tsd_set) (enum __libc_tsd_key_t,
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__const void *) __THROW;
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#define __libc_tsd_define(CLASS, KEY) CLASS void *__libc_tsd_##KEY##_data;
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#define __libc_tsd_get(KEY) \
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(__libc_internal_tsd_get != NULL \
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? __libc_internal_tsd_get (_LIBC_TSD_KEY_##KEY) \
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: __libc_tsd_##KEY##_data)
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#define __libc_tsd_set(KEY, VALUE) \
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(__libc_internal_tsd_set != NULL \
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? __libc_internal_tsd_set (_LIBC_TSD_KEY_##KEY, (VALUE)) \
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: ((__libc_tsd_##KEY##_data = (VALUE)), 0))
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#endif
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#endif /* bits/libc-tsd.h */
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