diff options
author | phh <none@none> | 2012-01-01 11:17:59 -0500 |
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committer | phh <none@none> | 2012-01-01 11:17:59 -0500 |
commit | c616ef13733aed0671ae2435394195f7ee163e05 (patch) | |
tree | 55aaaf5477257f2d207ddb3742202f24d24c83b3 /src/share/vm/runtime/os_ext.hpp | |
parent | 8396c2d922dc2917f5082a642e896139d08f955f (diff) |
7125934: Add a fast unordered timestamp capability to Hotspot on x86/x64
Summary: Add rdtsc detection and inline generation.
Reviewed-by: kamg, dholmes
Contributed-by: karen.kinnear@oracle.com
Diffstat (limited to 'src/share/vm/runtime/os_ext.hpp')
-rw-r--r-- | src/share/vm/runtime/os_ext.hpp | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/share/vm/runtime/os_ext.hpp b/src/share/vm/runtime/os_ext.hpp new file mode 100644 index 000000000..6b610528e --- /dev/null +++ b/src/share/vm/runtime/os_ext.hpp @@ -0,0 +1,34 @@ +/* + * Copyright (c) 2011 Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code 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 + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + * + */ + +#ifndef SHARE_VM_RUNTIME_OS_EXT_HPP +#define SHARE_VM_RUNTIME_OS_EXT_HPP + + public: + static void init_globals_ext() {} // Run from init_globals(). + // See os.hpp/cpp and init.cpp. + + private: + +#endif // SHARE_VM_RUNTIME_OS_EXT_HPP |