--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/runtime/vm_version.hpp Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,72 @@
+/*
+ * Copyright 1997-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+// VM_Version provides information about the VM.
+
+class Abstract_VM_Version: AllStatic {
+ protected:
+ friend class VMStructs;
+ static const char* _s_vm_release;
+ static const char* _s_internal_vm_info_string;
+ // These are set by machine-dependent initializations
+ static bool _supports_cx8;
+ static unsigned int _logical_processors_per_package;
+ static int _vm_major_version;
+ static int _vm_minor_version;
+ static int _vm_build_number;
+ static bool _initialized;
+ public:
+ static void initialize();
+
+ // Name
+ static const char* vm_name();
+ // Vendor
+ static const char* vm_vendor();
+ // VM version information string printed by launcher (java -version)
+ static const char* vm_info_string();
+ static const char* vm_release();
+ static const char* vm_platform_string();
+
+ static int vm_major_version() { assert(_initialized, "not initialized"); return _vm_major_version; }
+ static int vm_minor_version() { assert(_initialized, "not initialized"); return _vm_minor_version; }
+ static int vm_build_number() { assert(_initialized, "not initialized"); return _vm_build_number; }
+
+ // Gets the jvm_version_info.jvm_version defined in jvm.h
+ static unsigned int jvm_version();
+
+ // Internal version providing additional build information
+ static const char* internal_vm_info_string();
+
+ // does HW support an 8-byte compare-exchange operation?
+ static bool supports_cx8() {return _supports_cx8;}
+ static unsigned int logical_processors_per_package() {
+ return _logical_processors_per_package;
+ }
+
+ // Number of page sizes efficiently supported by the hardware. Most chips now
+ // support two sizes, thus this default implementation. Processor-specific
+ // subclasses should define new versions to hide this one as needed. Note
+ // that the O/S may support more sizes, but at most this many are used.
+ static uint page_size_count() { return 2; }
+};