Mercurial > hg > truffle
annotate src/share/vm/runtime/java.hpp @ 176:6b648fefb395
6705523: Fix for 6695506 will violate spec when used in JDK6
Summary: Make max classfile version number dependent on JDK version
Reviewed-by: acorn, never
| author | kamg |
|---|---|
| date | Thu, 22 May 2008 13:03:52 -0400 |
| parents | a61af66fc99e |
| children | d1605aabd0a1 8d852b81e775 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * Copyright 1997-2006 Sun Microsystems, Inc. All Rights Reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 // Register function to be called by before_exit | |
| 26 extern "C" { void register_on_exit_function(void (*func)(void)) ;} | |
| 27 | |
| 28 // Execute code before all handles are released and thread is killed; prologue to vm_exit | |
| 29 extern void before_exit(JavaThread * thread); | |
| 30 | |
| 31 // Forced VM exit (i.e, internal error or JVM_Exit) | |
| 32 extern void vm_exit(int code); | |
| 33 | |
| 34 // Wrapper for ::exit() | |
| 35 extern void vm_direct_exit(int code); | |
| 36 | |
| 37 // Shutdown the VM but do not exit the process | |
| 38 extern void vm_shutdown(); | |
| 39 // Shutdown the VM and abort the process | |
| 40 extern void vm_abort(); | |
| 41 | |
| 42 // Trigger any necessary notification of the VM being shutdown | |
| 43 extern void notify_vm_shutdown(); | |
| 44 | |
| 45 // VM exit if error occurs during initialization of VM | |
| 46 extern void vm_exit_during_initialization(Handle exception); | |
| 47 extern void vm_exit_during_initialization(symbolHandle exception_name, const char* message); | |
| 48 extern void vm_exit_during_initialization(const char* error, const char* message = NULL); | |
| 49 extern void vm_shutdown_during_initialization(const char* error, const char* message = NULL); | |
| 50 | |
| 51 class JDK_Version : AllStatic { | |
| 52 friend class VMStructs; | |
| 53 private: | |
| 54 static jdk_version_info _version_info; | |
| 55 static bool _pre_jdk16_version; | |
| 56 static int _jdk_version; // JDK version number representing the release | |
| 57 // i.e. n in 1.n.x (= jdk_minor_version()) | |
| 58 | |
| 59 public: | |
| 60 static void initialize(); | |
| 61 static int jdk_major_version() { return JDK_VERSION_MAJOR(_version_info.jdk_version); } | |
| 62 static int jdk_minor_version() { return JDK_VERSION_MINOR(_version_info.jdk_version); } | |
| 63 static int jdk_micro_version() { return JDK_VERSION_MICRO(_version_info.jdk_version); } | |
| 64 static int jdk_build_number() { return JDK_VERSION_BUILD(_version_info.jdk_version); } | |
| 65 | |
| 66 static bool is_pre_jdk16_version() { return _pre_jdk16_version; } | |
| 67 static bool is_jdk12x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 2; } | |
| 68 static bool is_jdk13x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 3; } | |
| 69 static bool is_jdk14x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 4; } | |
| 70 static bool is_jdk15x_version() { assert(is_jdk_version_initialized(), "must have been initialized"); return _jdk_version == 5; } | |
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71 |
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72 static bool is_jdk16x_version() { |
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73 if (is_jdk_version_initialized()) { |
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74 return _jdk_version == 6; |
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75 } else { |
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76 assert(is_pre_jdk16_version(), "must have been initialized"); |
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77 return false; |
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78 } |
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79 } |
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80 |
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81 static bool is_jdk17x_version() { |
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82 if (is_jdk_version_initialized()) { |
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83 return _jdk_version == 7; |
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84 } else { |
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85 assert(is_pre_jdk16_version(), "must have been initialized"); |
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86 return false; |
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87 } |
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88 } |
| 0 | 89 |
| 90 static bool supports_thread_park_blocker() { return _version_info.thread_park_blocker; } | |
| 91 | |
| 92 static bool is_gte_jdk14x_version() { | |
| 93 // Keep the semantics of this that the version number is >= 1.4 | |
| 94 assert(is_jdk_version_initialized(), "Not initialized"); | |
| 95 return _jdk_version >= 4; | |
| 96 } | |
| 97 static bool is_gte_jdk15x_version() { | |
| 98 // Keep the semantics of this that the version number is >= 1.5 | |
| 99 assert(is_jdk_version_initialized(), "Not initialized"); | |
| 100 return _jdk_version >= 5; | |
| 101 } | |
| 102 static bool is_gte_jdk16x_version() { | |
| 103 // Keep the semantics of this that the version number is >= 1.6 | |
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104 if (is_jdk_version_initialized()) { |
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105 return _jdk_version >= 6; |
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106 } else { |
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107 assert(is_pre_jdk16_version(), "Not initialized"); |
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108 return false; |
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109 } |
| 0 | 110 } |
| 111 | |
| 112 static bool is_gte_jdk17x_version() { | |
| 113 // Keep the semantics of this that the version number is >= 1.7 | |
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114 if (is_jdk_version_initialized()) { |
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115 return _jdk_version >= 7; |
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116 } else { |
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117 assert(is_pre_jdk16_version(), "Not initialized"); |
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118 return false; |
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119 } |
| 0 | 120 } |
| 121 | |
| 122 static bool is_jdk_version_initialized() { | |
| 123 return _jdk_version > 0; | |
| 124 } | |
| 125 | |
| 126 // These methods are defined to deal with pre JDK 1.6 versions | |
| 127 static void set_jdk12x_version() { | |
| 128 assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize"); | |
| 129 _jdk_version = 2; | |
| 130 _version_info.jdk_version = (1 << 24) | (2 << 16); | |
| 131 } | |
| 132 static void set_jdk13x_version() { | |
| 133 assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize"); | |
| 134 _jdk_version = 3; | |
| 135 _version_info.jdk_version = (1 << 24) | (3 << 16); | |
| 136 } | |
| 137 static void set_jdk14x_version() { | |
| 138 assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize"); | |
| 139 _jdk_version = 4; | |
| 140 _version_info.jdk_version = (1 << 24) | (4 << 16); | |
| 141 } | |
| 142 static void set_jdk15x_version() { | |
| 143 assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize"); | |
| 144 _jdk_version = 5; | |
| 145 _version_info.jdk_version = (1 << 24) | (5 << 16); | |
| 146 } | |
| 147 }; |