e28a3d8bf2
* configure.tgt: Handle i386 like i[456]86. * config/generic/tls.h [!HAVE_ARCH_GTM_THREAD] (gtm_thr): Don't take address. * config/generic/tls.cc [!HAVE_ARCH_GTM_THREAD || !HAVE_ARCH_GTM_THREAD_DISP] (_gtm_thr_tls): New variable. From-SVN: r181163
66 lines
2.4 KiB
C++
66 lines
2.4 KiB
C++
/* Copyright (C) 2008, 2009, 2011 Free Software Foundation, Inc.
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Contributed by Richard Henderson <rth@redhat.com>.
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This file is part of the GNU Transactional Memory Library (libitm).
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Libitm is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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Libitm is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef LIBITM_TLS_H
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#define LIBITM_TLS_H 1
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namespace GTM HIDDEN {
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#if !defined(HAVE_ARCH_GTM_THREAD) || !defined(HAVE_ARCH_GTM_THREAD_DISP)
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// Provides a single place to store all this libraries thread-local data.
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struct gtm_thread_tls
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{
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#ifndef HAVE_ARCH_GTM_THREAD
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// The currently active transaction. Elided if the target provides
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// some efficient mechanism for storing this.
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gtm_thread *thr;
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#endif
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#ifndef HAVE_ARCH_GTM_THREAD_DISP
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// The dispatch table for the STM implementation currently in use. Elided
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// if the target provides some efficient mechanism for storing this.
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abi_dispatch *disp;
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#endif
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};
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extern __thread gtm_thread_tls _gtm_thr_tls;
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#endif
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#ifndef HAVE_ARCH_GTM_THREAD
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// If the target does not provide optimized access to the thread-local
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// data, simply access the TLS variable defined above.
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static inline gtm_thread *gtm_thr() { return _gtm_thr_tls.thr; }
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static inline void set_gtm_thr(gtm_thread *x) { _gtm_thr_tls.thr = x; }
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#endif
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#ifndef HAVE_ARCH_GTM_THREAD_DISP
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// If the target does not provide optimized access to the currently
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// active dispatch table, simply access via GTM_THR.
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static inline abi_dispatch * abi_disp() { return _gtm_thr_tls.disp; }
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static inline void set_abi_disp(abi_dispatch *x) { _gtm_thr_tls.disp = x; }
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#endif
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} // namespace GTM
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#endif // LIBITM_TLS_H
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