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src/share/vm/runtime/java.hpp@6b648fefb395 (annotated)

src/share/vm/runtime/java.hpp

Thu, 22 May 2008 13:03:52 -0400

author

kamg

date

Thu, 22 May 2008 13:03:52 -0400

changeset 611

6b648fefb395

parent 435

a61af66fc99e

child 631

d1605aabd0a1

child 662

8d852b81e775

permissions

-rw-r--r--

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

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; }
kamg@611	71
kamg@611	72	static bool is_jdk16x_version() {
kamg@611	73	if (is_jdk_version_initialized()) {
kamg@611	74	return _jdk_version == 6;
kamg@611	75	} else {
kamg@611	76	assert(is_pre_jdk16_version(), "must have been initialized");
kamg@611	77	return false;
kamg@611	78	}
kamg@611	79	}
kamg@611	80
kamg@611	81	static bool is_jdk17x_version() {
kamg@611	82	if (is_jdk_version_initialized()) {
kamg@611	83	return _jdk_version == 7;
kamg@611	84	} else {
kamg@611	85	assert(is_pre_jdk16_version(), "must have been initialized");
kamg@611	86	return false;
kamg@611	87	}
kamg@611	88	}
duke@435	89
duke@435	90	static bool supports_thread_park_blocker() { return _version_info.thread_park_blocker; }
duke@435	91
duke@435	92	static bool is_gte_jdk14x_version() {
duke@435	93	// Keep the semantics of this that the version number is >= 1.4
duke@435	94	assert(is_jdk_version_initialized(), "Not initialized");
duke@435	95	return _jdk_version >= 4;
duke@435	96	}
duke@435	97	static bool is_gte_jdk15x_version() {
duke@435	98	// Keep the semantics of this that the version number is >= 1.5
duke@435	99	assert(is_jdk_version_initialized(), "Not initialized");
duke@435	100	return _jdk_version >= 5;
duke@435	101	}
duke@435	102	static bool is_gte_jdk16x_version() {
duke@435	103	// Keep the semantics of this that the version number is >= 1.6
kamg@611	104	if (is_jdk_version_initialized()) {
kamg@611	105	return _jdk_version >= 6;
kamg@611	106	} else {
kamg@611	107	assert(is_pre_jdk16_version(), "Not initialized");
kamg@611	108	return false;
kamg@611	109	}
duke@435	110	}
duke@435	111
duke@435	112	static bool is_gte_jdk17x_version() {
duke@435	113	// Keep the semantics of this that the version number is >= 1.7
kamg@611	114	if (is_jdk_version_initialized()) {
kamg@611	115	return _jdk_version >= 7;
kamg@611	116	} else {
kamg@611	117	assert(is_pre_jdk16_version(), "Not initialized");
kamg@611	118	return false;
kamg@611	119	}
duke@435	120	}
duke@435	121
duke@435	122	static bool is_jdk_version_initialized() {
duke@435	123	return _jdk_version > 0;
duke@435	124	}
duke@435	125
duke@435	126	// These methods are defined to deal with pre JDK 1.6 versions
duke@435	127	static void set_jdk12x_version() {
duke@435	128	assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize");
duke@435	129	_jdk_version = 2;
duke@435	130	_version_info.jdk_version = (1 << 24) | (2 << 16);
duke@435	131	}
duke@435	132	static void set_jdk13x_version() {
duke@435	133	assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize");
duke@435	134	_jdk_version = 3;
duke@435	135	_version_info.jdk_version = (1 << 24) | (3 << 16);
duke@435	136	}
duke@435	137	static void set_jdk14x_version() {
duke@435	138	assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize");
duke@435	139	_jdk_version = 4;
duke@435	140	_version_info.jdk_version = (1 << 24) | (4 << 16);
duke@435	141	}
duke@435	142	static void set_jdk15x_version() {
duke@435	143	assert(_pre_jdk16_version && !is_jdk_version_initialized(), "must not initialize");
duke@435	144	_jdk_version = 5;
duke@435	145	_version_info.jdk_version = (1 << 24) | (5 << 16);
duke@435	146	}
duke@435	147	};