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authorBen Cheng <bccheng@google.com>2012-10-01 10:30:31 -0700
committerBen Cheng <bccheng@google.com>2012-10-01 10:30:31 -0700
commit82bcbebce43f0227f506d75a5b764b6847041bae (patch)
treefe9f8597b48a430c4daeb5123e3e8eb28e6f9da9 /gcc-4.7/libitm/query.cc
parent3c052de3bb16ac53b6b6ed659ec7557eb84c7590 (diff)
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Initial check-in of gcc 4.7.2.
Change-Id: I4a2f5a921c21741a0e18bda986d77e5f1bef0365
Diffstat (limited to 'gcc-4.7/libitm/query.cc')
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1 files changed, 70 insertions, 0 deletions
diff --git a/gcc-4.7/libitm/query.cc b/gcc-4.7/libitm/query.cc
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+/* Copyright (C) 2008, 2009, 2011 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)
+{
+ 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)
+{
+ 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 ();
+}