Mercurial > hg > truffle
annotate src/share/vm/services/management.hpp @ 1721:413ad0331a0c
6977924: Changes for 6975078 produce build error with certain gcc versions
Summary: The changes introduced for 6975078 assign badHeapOopVal to the _allocation field in the ResourceObj class. In 32 bit linux builds with certain versions of gcc this assignment will be flagged as an error while compiling allocation.cpp. In 32 bit builds the constant value badHeapOopVal (which is cast to an intptr_t) is negative. The _allocation field is typed as an unsigned intptr_t and gcc catches this as an error.
Reviewed-by: jcoomes, ysr, phh
| author | johnc |
|---|---|
| date | Wed, 18 Aug 2010 10:59:06 -0700 |
| parents | c18cbe5936b8 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2003, 2005, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 class OopClosure; | |
| 26 class ThreadSnapshot; | |
| 27 | |
| 28 class Management : public AllStatic { | |
| 29 private: | |
| 30 static PerfVariable* _begin_vm_creation_time; | |
| 31 static PerfVariable* _end_vm_creation_time; | |
| 32 static PerfVariable* _vm_init_done_time; | |
| 33 static jmmOptionalSupport _optional_support; | |
| 34 static TimeStamp _stamp; // Timestamp since vm init done time | |
| 35 | |
| 36 // Management klasses | |
| 37 static klassOop _sensor_klass; | |
| 38 static klassOop _threadInfo_klass; | |
| 39 static klassOop _memoryUsage_klass; | |
| 40 static klassOop _memoryPoolMXBean_klass; | |
| 41 static klassOop _memoryManagerMXBean_klass; | |
| 42 static klassOop _garbageCollectorMXBean_klass; | |
| 43 static klassOop _managementFactory_klass; | |
| 44 | |
| 45 static klassOop load_and_initialize_klass(symbolHandle sh, TRAPS); | |
| 46 | |
| 47 public: | |
| 48 static void init(); | |
| 49 static void initialize(TRAPS); | |
| 50 | |
| 51 static jlong ticks_to_ms(jlong ticks); | |
| 52 static jlong timestamp(); | |
| 53 | |
| 54 static void oops_do(OopClosure* f); | |
| 55 static void* get_jmm_interface(int version); | |
| 56 static void get_optional_support(jmmOptionalSupport* support); | |
| 57 | |
| 58 static void get_loaded_classes(JavaThread* cur_thread, GrowableArray<KlassHandle>* klass_handle_array); | |
| 59 | |
| 60 static void record_vm_startup_time(jlong begin, jlong duration); | |
| 61 static void record_vm_init_completed() { | |
| 62 // Initialize the timestamp to get the current time | |
| 63 _vm_init_done_time->set_value(os::javaTimeMillis()); | |
| 64 | |
| 65 // Update the timestamp to the vm init done time | |
| 66 _stamp.update(); | |
| 67 } | |
| 68 | |
| 69 static jlong vm_init_done_time() { | |
| 70 return _vm_init_done_time->get_value(); | |
| 71 } | |
| 72 | |
| 73 // methods to return a klassOop. | |
| 74 static klassOop java_lang_management_ThreadInfo_klass(TRAPS); | |
| 75 static klassOop java_lang_management_MemoryUsage_klass(TRAPS); | |
| 76 static klassOop java_lang_management_MemoryPoolMXBean_klass(TRAPS); | |
| 77 static klassOop java_lang_management_MemoryManagerMXBean_klass(TRAPS); | |
| 78 static klassOop java_lang_management_GarbageCollectorMXBean_klass(TRAPS); | |
| 79 static klassOop sun_management_Sensor_klass(TRAPS); | |
| 80 static klassOop sun_management_ManagementFactory_klass(TRAPS); | |
| 81 | |
| 82 static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, TRAPS); | |
| 83 static instanceOop create_thread_info_instance(ThreadSnapshot* snapshot, objArrayHandle monitors_array, typeArrayHandle depths_array, objArrayHandle synchronizers_array, TRAPS); | |
| 84 }; | |
| 85 | |
| 86 class TraceVmCreationTime : public StackObj { | |
| 87 private: | |
| 88 TimeStamp _timer; | |
| 89 jlong _begin_time; | |
| 90 | |
| 91 public: | |
| 92 TraceVmCreationTime() {} | |
| 93 ~TraceVmCreationTime() {} | |
| 94 | |
| 95 void start() | |
| 96 { _timer.update_to(0); _begin_time = os::javaTimeMillis(); } | |
| 97 | |
| 98 /** | |
| 99 * Only call this if initialization completes successfully; it will | |
| 100 * crash if PerfMemory_exit() has already been called (usually by | |
| 101 * os::shutdown() when there was an initialization failure). | |
| 102 */ | |
| 103 void end() | |
| 104 { Management::record_vm_startup_time(_begin_time, _timer.milliseconds()); } | |
| 105 | |
| 106 }; |