1 files changed, 84 insertions, 0 deletions
diff --git a/gcc-4.8.3/libitm/query.cc b/gcc-4.8.3/libitm/query.cc
new file mode 100644
index 000000000..39a35b3e3
--- /dev/null
+++ b/gcc-4.8.3/libitm/query.cc
@@ -0,0 +1,84 @@
+/* Copyright (C) 2008-2013 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 ();
+}