Sun, 02 Mar 2008 16:10:12 -0800
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
Summary: Default values set by cms ergonomics are set with FLAG_SET_DEFAULT so down stream the values look like the default values and affect how later parameters are set. Set these values with FLAG_SET_ERGO instead and adjust how later parameters are interpreted.
Reviewed-by: iveresov, apetrusenko, pbk, ysr
duke@435 | 1 | /* |
duke@435 | 2 | * Copyright 1997-2006 Sun Microsystems, Inc. All Rights Reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
duke@435 | 21 | * have any questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
duke@435 | 25 | // Register function to be called by before_exit |
duke@435 | 26 | extern "C" { void register_on_exit_function(void (*func)(void)) ;} |
duke@435 | 27 | |
duke@435 | 28 | // Execute code before all handles are released and thread is killed; prologue to vm_exit |
duke@435 | 29 | extern void before_exit(JavaThread * thread); |
duke@435 | 30 | |
duke@435 | 31 | // Forced VM exit (i.e, internal error or JVM_Exit) |
duke@435 | 32 | extern void vm_exit(int code); |
duke@435 | 33 | |
duke@435 | 34 | // Wrapper for ::exit() |
duke@435 | 35 | extern void vm_direct_exit(int code); |
duke@435 | 36 | |
duke@435 | 37 | // Shutdown the VM but do not exit the process |
duke@435 | 38 | extern void vm_shutdown(); |
duke@435 | 39 | // Shutdown the VM and abort the process |
duke@435 | 40 | extern void vm_abort(); |
duke@435 | 41 | |
duke@435 | 42 | // Trigger any necessary notification of the VM being shutdown |
duke@435 | 43 | extern void notify_vm_shutdown(); |
duke@435 | 44 | |
duke@435 | 45 | // VM exit if error occurs during initialization of VM |
duke@435 | 46 | extern void vm_exit_during_initialization(Handle exception); |
duke@435 | 47 | extern void vm_exit_during_initialization(symbolHandle exception_name, const char* message); |
duke@435 | 48 | extern void vm_exit_during_initialization(const char* error, const char* message = NULL); |
duke@435 | 49 | extern void vm_shutdown_during_initialization(const char* error, const char* message = NULL); |
duke@435 | 50 | |
duke@435 | 51 | class JDK_Version : AllStatic { |
duke@435 | 52 | friend class VMStructs; |
duke@435 | 53 | private: |
duke@435 | 54 | static jdk_version_info _version_info; |
duke@435 | 55 | static bool _pre_jdk16_version; |
duke@435 | 56 | static int _jdk_version; // JDK version number representing the release |
duke@435 | 57 | // i.e. n in 1.n.x (= jdk_minor_version()) |
duke@435 | 58 | |
duke@435 | 59 | public: |
duke@435 | 60 | static void initialize(); |
duke@435 | 61 | static int jdk_major_version() { return JDK_VERSION_MAJOR(_version_info.jdk_version); } |
duke@435 | 62 | static int jdk_minor_version() { return JDK_VERSION_MINOR(_version_info.jdk_version); } |
duke@435 | 63 | static int jdk_micro_version() { return JDK_VERSION_MICRO(_version_info.jdk_version); } |
duke@435 | 64 | static int jdk_build_number() { return JDK_VERSION_BUILD(_version_info.jdk_version); } |
duke@435 | 65 | |
duke@435 | 66 | static bool is_pre_jdk16_version() { return _pre_jdk16_version; } |
duke@435 | 67 | static bool is_jdk12x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 2; } |
duke@435 | 68 | static bool is_jdk13x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 3; } |
duke@435 | 69 | static bool is_jdk14x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 4; } |
duke@435 | 70 | static bool is_jdk15x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 5; } |
duke@435 | 71 | static bool is_jdk16x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 6; } |
duke@435 | 72 | static bool is_jdk17x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 7; } |
duke@435 | 73 | |
duke@435 | 74 | static bool supports_thread_park_blocker() { return _version_info.thread_park_blocker; } |
duke@435 | 75 | |
duke@435 | 76 | static bool is_gte_jdk14x_version() { |
duke@435 | 77 | // Keep the semantics of this that the version number is >= 1.4 |
duke@435 | 78 | assert(is_jdk_version_initialized(), "Not initialized"); |
duke@435 | 79 | return _jdk_version >= 4; |
duke@435 | 80 | } |
duke@435 | 81 | static bool is_gte_jdk15x_version() { |
duke@435 | 82 | // Keep the semantics of this that the version number is >= 1.5 |
duke@435 | 83 | assert(is_jdk_version_initialized(), "Not initialized"); |
duke@435 | 84 | return _jdk_version >= 5; |
duke@435 | 85 | } |
duke@435 | 86 | static bool is_gte_jdk16x_version() { |
duke@435 | 87 | // Keep the semantics of this that the version number is >= 1.6 |
duke@435 | 88 | assert(is_jdk_version_initialized(), "Not initialized"); |
duke@435 | 89 | return _jdk_version >= 6; |
duke@435 | 90 | } |
duke@435 | 91 | |
duke@435 | 92 | static bool is_gte_jdk17x_version() { |
duke@435 | 93 | // Keep the semantics of this that the version number is >= 1.7 |
duke@435 | 94 | assert(is_jdk_version_initialized(), "Not initialized"); |
duke@435 | 95 | return _jdk_version >= 7; |
duke@435 | 96 | } |
duke@435 | 97 | |
duke@435 | 98 | static bool is_jdk_version_initialized() { |
duke@435 | 99 | return _jdk_version > 0; |
duke@435 | 100 | } |
duke@435 | 101 | |
duke@435 | 102 | // These methods are defined to deal with pre JDK 1.6 versions |
duke@435 | 103 | static void set_jdk12x_version() { |
duke@435 | 104 | assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize"); |
duke@435 | 105 | _jdk_version = 2; |
duke@435 | 106 | _version_info.jdk_version = (1 << 24) | (2 << 16); |
duke@435 | 107 | } |
duke@435 | 108 | static void set_jdk13x_version() { |
duke@435 | 109 | assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize"); |
duke@435 | 110 | _jdk_version = 3; |
duke@435 | 111 | _version_info.jdk_version = (1 << 24) | (3 << 16); |
duke@435 | 112 | } |
duke@435 | 113 | static void set_jdk14x_version() { |
duke@435 | 114 | assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize"); |
duke@435 | 115 | _jdk_version = 4; |
duke@435 | 116 | _version_info.jdk_version = (1 << 24) | (4 << 16); |
duke@435 | 117 | } |
duke@435 | 118 | static void set_jdk15x_version() { |
duke@435 | 119 | assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize"); |
duke@435 | 120 | _jdk_version = 5; |
duke@435 | 121 | _version_info.jdk_version = (1 << 24) | (5 << 16); |
duke@435 | 122 | } |
duke@435 | 123 | }; |