/* Copyright (C) 2008-2014 Free Software Foundation, Inc. Contributed by Richard Henderson <rth@redhat.com>. This file is part of the GNU Transactional Memory Library (libitm). Libitm is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Libitm 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 General Public License for more details. Under Section 7 of GPL version 3, you are granted additional permissions described in the GCC Runtime Library Exception, version 3.1, as published by the Free Software Foundation. You should have received a copy of the GNU General Public License and a copy of the GCC Runtime Library Exception along with this program; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see <http://www.gnu.org/licenses/>. */ #include "libitm_i.h" using namespace GTM; int ITM_REGPARM _ITM_versionCompatible (int version) { return version == _ITM_VERSION_NO; } const char * ITM_REGPARM _ITM_libraryVersion (void) { return "GNU libitm " _ITM_VERSION; } _ITM_howExecuting ITM_REGPARM _ITM_inTransaction (void) { #if defined(USE_HTM_FASTPATH) // If we use the HTM fastpath, we cannot reliably detect whether we are // in a transaction because this function can be called outside of // a transaction and thus we can't deduce this by looking at just the serial // lock. This function isn't used in practice currently, so the easiest // way to handle it is to just abort. if (htm_fastpath && htm_transaction_active()) htm_abort(); #endif struct gtm_thread *tx = gtm_thr(); if (tx && (tx->nesting > 0)) { if (tx->state & gtm_thread::STATE_IRREVOCABLE) return inIrrevocableTransaction; else return inRetryableTransaction; } return outsideTransaction; } _ITM_transactionId_t ITM_REGPARM _ITM_getTransactionId (void) { #if defined(USE_HTM_FASTPATH) // See ITM_inTransaction. if (htm_fastpath && htm_transaction_active()) htm_abort(); #endif struct gtm_thread *tx = gtm_thr(); return (tx && (tx->nesting > 0)) ? tx->id : _ITM_noTransactionId; } void ITM_REGPARM ITM_NORETURN _ITM_error (const _ITM_srcLocation * loc UNUSED, int errorCode UNUSED) { abort (); }