author | coleenp |
Wed, 22 May 2013 14:37:49 -0400 | |
changeset 17826 | 9ad5cd464a75 |
parent 13728 | 882756847a04 |
child 20388 | 2cf7b26682dc |
permissions | -rw-r--r-- |
1 | 1 |
/* |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
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* Copyright (c) 2004, 2012, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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6941466: Oracle rebranding changes for Hotspot repositories
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
f4b087cbb361
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trims
parents:
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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* |
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*/ |
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package sun.jvm.hotspot.utilities; |
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import java.io.*; |
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import java.nio.channels.*; |
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import java.util.*; |
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import sun.jvm.hotspot.debugger.*; |
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import sun.jvm.hotspot.memory.*; |
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import sun.jvm.hotspot.oops.*; |
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import sun.jvm.hotspot.runtime.*; |
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||
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/* |
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* This class writes Java heap in hprof binary format. This format is |
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* used by Heap Analysis Tool (HAT). The class is heavily influenced |
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* by 'hprof_io.c' of 1.5 new hprof implementation. |
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*/ |
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||
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/* hprof binary format: (result either written to a file or sent over |
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* the network). |
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* |
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* WARNING: This format is still under development, and is subject to |
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* change without notice. |
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* |
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* header "JAVA PROFILE 1.0.1" (0-terminated) |
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* u4 size of identifiers. Identifiers are used to represent |
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* UTF8 strings, objects, stack traces, etc. They usually |
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* have the same size as host pointers. For example, on |
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* Solaris and Win32, the size is 4. |
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* u4 high word |
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* u4 low word number of milliseconds since 0:00 GMT, 1/1/70 |
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* [record]* a sequence of records. |
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* |
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*/ |
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||
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/* |
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* |
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* Record format: |
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* |
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* u1 a TAG denoting the type of the record |
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* u4 number of *microseconds* since the time stamp in the |
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* header. (wraps around in a little more than an hour) |
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* u4 number of bytes *remaining* in the record. Note that |
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* this number excludes the tag and the length field itself. |
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* [u1]* BODY of the record (a sequence of bytes) |
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*/ |
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||
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/* |
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* The following TAGs are supported: |
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* |
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* TAG BODY notes |
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*---------------------------------------------------------- |
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* HPROF_UTF8 a UTF8-encoded name |
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* |
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* id name ID |
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* [u1]* UTF8 characters (no trailing zero) |
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* |
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* HPROF_LOAD_CLASS a newly loaded class |
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* |
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* u4 class serial number (> 0) |
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* id class object ID |
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* u4 stack trace serial number |
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* id class name ID |
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* |
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* HPROF_UNLOAD_CLASS an unloading class |
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* |
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* u4 class serial_number |
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* |
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* HPROF_FRAME a Java stack frame |
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* |
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* id stack frame ID |
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* id method name ID |
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* id method signature ID |
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* id source file name ID |
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* u4 class serial number |
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* i4 line number. >0: normal |
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* -1: unknown |
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* -2: compiled method |
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* -3: native method |
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* |
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* HPROF_TRACE a Java stack trace |
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* |
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* u4 stack trace serial number |
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* u4 thread serial number |
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* u4 number of frames |
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* [id]* stack frame IDs |
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* |
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* |
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* HPROF_ALLOC_SITES a set of heap allocation sites, obtained after GC |
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* |
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* u2 flags 0x0001: incremental vs. complete |
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* 0x0002: sorted by allocation vs. live |
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* 0x0004: whether to force a GC |
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* u4 cutoff ratio |
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* u4 total live bytes |
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* u4 total live instances |
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* u8 total bytes allocated |
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* u8 total instances allocated |
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* u4 number of sites that follow |
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* [u1 is_array: 0: normal object |
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* 2: object array |
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* 4: boolean array |
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* 5: char array |
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* 6: float array |
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* 7: double array |
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* 8: byte array |
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* 9: short array |
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* 10: int array |
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* 11: long array |
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* u4 class serial number (may be zero during startup) |
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* u4 stack trace serial number |
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* u4 number of bytes alive |
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* u4 number of instances alive |
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* u4 number of bytes allocated |
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* u4]* number of instance allocated |
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* |
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* HPROF_START_THREAD a newly started thread. |
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* |
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* u4 thread serial number (> 0) |
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* id thread object ID |
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* u4 stack trace serial number |
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* id thread name ID |
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* id thread group name ID |
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* id thread group parent name ID |
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* |
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* HPROF_END_THREAD a terminating thread. |
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* |
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* u4 thread serial number |
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* |
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* HPROF_HEAP_SUMMARY heap summary |
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* |
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* u4 total live bytes |
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* u4 total live instances |
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* u8 total bytes allocated |
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* u8 total instances allocated |
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* |
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* HPROF_HEAP_DUMP denote a heap dump |
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* |
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* [heap dump sub-records]* |
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* |
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* There are four kinds of heap dump sub-records: |
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* |
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* u1 sub-record type |
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* |
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* HPROF_GC_ROOT_UNKNOWN unknown root |
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* |
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* id object ID |
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* |
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* HPROF_GC_ROOT_THREAD_OBJ thread object |
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* |
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* id thread object ID (may be 0 for a |
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* thread newly attached through JNI) |
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* u4 thread sequence number |
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* u4 stack trace sequence number |
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* |
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* HPROF_GC_ROOT_JNI_GLOBAL JNI global ref root |
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* |
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* id object ID |
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* id JNI global ref ID |
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* |
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* HPROF_GC_ROOT_JNI_LOCAL JNI local ref |
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* |
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* id object ID |
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* u4 thread serial number |
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* u4 frame # in stack trace (-1 for empty) |
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* |
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* HPROF_GC_ROOT_JAVA_FRAME Java stack frame |
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* |
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* id object ID |
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* u4 thread serial number |
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* u4 frame # in stack trace (-1 for empty) |
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* |
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* HPROF_GC_ROOT_NATIVE_STACK Native stack |
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* |
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* id object ID |
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* u4 thread serial number |
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* |
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* HPROF_GC_ROOT_STICKY_CLASS System class |
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* |
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* id object ID |
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* |
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* HPROF_GC_ROOT_THREAD_BLOCK Reference from thread block |
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* |
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* id object ID |
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* u4 thread serial number |
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* |
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* HPROF_GC_ROOT_MONITOR_USED Busy monitor |
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* |
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* id object ID |
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* |
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* HPROF_GC_CLASS_DUMP dump of a class object |
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* |
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* id class object ID |
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* u4 stack trace serial number |
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* id super class object ID |
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* id class loader object ID |
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* id signers object ID |
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* id protection domain object ID |
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* id reserved |
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* id reserved |
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* |
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* u4 instance size (in bytes) |
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* |
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* u2 size of constant pool |
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* [u2, constant pool index, |
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* ty, type |
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* 2: object |
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* 4: boolean |
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* 5: char |
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* 6: float |
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* 7: double |
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* 8: byte |
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* 9: short |
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* 10: int |
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* 11: long |
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* vl]* and value |
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* |
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* u2 number of static fields |
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* [id, static field name, |
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* ty, type, |
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* vl]* and value |
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* |
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* u2 number of inst. fields (not inc. super) |
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* [id, instance field name, |
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* ty]* type |
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* |
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* HPROF_GC_INSTANCE_DUMP dump of a normal object |
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* |
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* id object ID |
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* u4 stack trace serial number |
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* id class object ID |
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* u4 number of bytes that follow |
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* [vl]* instance field values (class, followed |
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* by super, super's super ...) |
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* |
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* HPROF_GC_OBJ_ARRAY_DUMP dump of an object array |
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* |
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* id array object ID |
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* u4 stack trace serial number |
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* u4 number of elements |
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* id array class ID |
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* [id]* elements |
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* |
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* HPROF_GC_PRIM_ARRAY_DUMP dump of a primitive array |
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* |
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* id array object ID |
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* u4 stack trace serial number |
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* u4 number of elements |
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* u1 element type |
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* 4: boolean array |
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* 5: char array |
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* 6: float array |
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* 7: double array |
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* 8: byte array |
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* 9: short array |
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* 10: int array |
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* 11: long array |
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* [u1]* elements |
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* |
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282 |
* HPROF_CPU_SAMPLES a set of sample traces of running threads |
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* |
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* u4 total number of samples |
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* u4 # of traces |
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* [u4 # of samples |
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* u4]* stack trace serial number |
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* |
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* HPROF_CONTROL_SETTINGS the settings of on/off switches |
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* |
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* u4 0x00000001: alloc traces on/off |
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* 0x00000002: cpu sampling on/off |
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* u2 stack trace depth |
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* |
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*/ |
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297 |
public class HeapHprofBinWriter extends AbstractHeapGraphWriter { |
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// hprof binary file header |
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private static final String HPROF_HEADER = "JAVA PROFILE 1.0.1"; |
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301 |
// constants in enum HprofTag |
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private static final int HPROF_UTF8 = 0x01; |
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private static final int HPROF_LOAD_CLASS = 0x02; |
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private static final int HPROF_UNLOAD_CLASS = 0x03; |
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private static final int HPROF_FRAME = 0x04; |
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private static final int HPROF_TRACE = 0x05; |
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private static final int HPROF_ALLOC_SITES = 0x06; |
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private static final int HPROF_HEAP_SUMMARY = 0x07; |
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private static final int HPROF_START_THREAD = 0x0A; |
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private static final int HPROF_END_THREAD = 0x0B; |
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private static final int HPROF_HEAP_DUMP = 0x0C; |
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private static final int HPROF_CPU_SAMPLES = 0x0D; |
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private static final int HPROF_CONTROL_SETTINGS = 0x0E; |
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314 |
||
315 |
// Heap dump constants |
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316 |
// constants in enum HprofGcTag |
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317 |
private static final int HPROF_GC_ROOT_UNKNOWN = 0xFF; |
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private static final int HPROF_GC_ROOT_JNI_GLOBAL = 0x01; |
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private static final int HPROF_GC_ROOT_JNI_LOCAL = 0x02; |
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private static final int HPROF_GC_ROOT_JAVA_FRAME = 0x03; |
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private static final int HPROF_GC_ROOT_NATIVE_STACK = 0x04; |
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private static final int HPROF_GC_ROOT_STICKY_CLASS = 0x05; |
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private static final int HPROF_GC_ROOT_THREAD_BLOCK = 0x06; |
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private static final int HPROF_GC_ROOT_MONITOR_USED = 0x07; |
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private static final int HPROF_GC_ROOT_THREAD_OBJ = 0x08; |
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private static final int HPROF_GC_CLASS_DUMP = 0x20; |
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327 |
private static final int HPROF_GC_INSTANCE_DUMP = 0x21; |
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328 |
private static final int HPROF_GC_OBJ_ARRAY_DUMP = 0x22; |
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329 |
private static final int HPROF_GC_PRIM_ARRAY_DUMP = 0x23; |
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330 |
||
331 |
// constants in enum HprofType |
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332 |
private static final int HPROF_ARRAY_OBJECT = 1; |
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private static final int HPROF_NORMAL_OBJECT = 2; |
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private static final int HPROF_BOOLEAN = 4; |
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335 |
private static final int HPROF_CHAR = 5; |
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336 |
private static final int HPROF_FLOAT = 6; |
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337 |
private static final int HPROF_DOUBLE = 7; |
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338 |
private static final int HPROF_BYTE = 8; |
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339 |
private static final int HPROF_SHORT = 9; |
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340 |
private static final int HPROF_INT = 10; |
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341 |
private static final int HPROF_LONG = 11; |
|
342 |
||
343 |
// Java type codes |
|
344 |
private static final int JVM_SIGNATURE_BOOLEAN = 'Z'; |
|
345 |
private static final int JVM_SIGNATURE_CHAR = 'C'; |
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346 |
private static final int JVM_SIGNATURE_BYTE = 'B'; |
|
347 |
private static final int JVM_SIGNATURE_SHORT = 'S'; |
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348 |
private static final int JVM_SIGNATURE_INT = 'I'; |
|
349 |
private static final int JVM_SIGNATURE_LONG = 'J'; |
|
350 |
private static final int JVM_SIGNATURE_FLOAT = 'F'; |
|
351 |
private static final int JVM_SIGNATURE_DOUBLE = 'D'; |
|
352 |
private static final int JVM_SIGNATURE_ARRAY = '['; |
|
353 |
private static final int JVM_SIGNATURE_CLASS = 'L'; |
|
354 |
||
355 |
||
356 |
public synchronized void write(String fileName) throws IOException { |
|
357 |
// open file stream and create buffered data output stream |
|
358 |
FileOutputStream fos = new FileOutputStream(fileName); |
|
359 |
FileChannel chn = fos.getChannel(); |
|
360 |
out = new DataOutputStream(new BufferedOutputStream(fos)); |
|
361 |
||
362 |
VM vm = VM.getVM(); |
|
363 |
dbg = vm.getDebugger(); |
|
364 |
objectHeap = vm.getObjectHeap(); |
|
365 |
symTbl = vm.getSymbolTable(); |
|
366 |
||
367 |
OBJ_ID_SIZE = (int) vm.getOopSize(); |
|
368 |
||
369 |
BOOLEAN_BASE_OFFSET = TypeArray.baseOffsetInBytes(BasicType.T_BOOLEAN); |
|
370 |
BYTE_BASE_OFFSET = TypeArray.baseOffsetInBytes(BasicType.T_BYTE); |
|
371 |
CHAR_BASE_OFFSET = TypeArray.baseOffsetInBytes(BasicType.T_CHAR); |
|
372 |
SHORT_BASE_OFFSET = TypeArray.baseOffsetInBytes(BasicType.T_SHORT); |
|
373 |
INT_BASE_OFFSET = TypeArray.baseOffsetInBytes(BasicType.T_INT); |
|
374 |
LONG_BASE_OFFSET = TypeArray.baseOffsetInBytes(BasicType.T_LONG); |
|
375 |
FLOAT_BASE_OFFSET = TypeArray.baseOffsetInBytes(BasicType.T_FLOAT); |
|
376 |
DOUBLE_BASE_OFFSET = TypeArray.baseOffsetInBytes(BasicType.T_DOUBLE); |
|
377 |
OBJECT_BASE_OFFSET = TypeArray.baseOffsetInBytes(BasicType.T_OBJECT); |
|
378 |
||
379 |
BOOLEAN_SIZE = objectHeap.getBooleanSize(); |
|
380 |
BYTE_SIZE = objectHeap.getByteSize(); |
|
381 |
CHAR_SIZE = objectHeap.getCharSize(); |
|
382 |
SHORT_SIZE = objectHeap.getShortSize(); |
|
383 |
INT_SIZE = objectHeap.getIntSize(); |
|
384 |
LONG_SIZE = objectHeap.getLongSize(); |
|
385 |
FLOAT_SIZE = objectHeap.getFloatSize(); |
|
386 |
DOUBLE_SIZE = objectHeap.getDoubleSize(); |
|
387 |
||
388 |
// hprof bin format header |
|
389 |
writeFileHeader(); |
|
390 |
||
391 |
// dummy stack trace without any frames so that |
|
392 |
// HAT can be run without -stack false option |
|
393 |
writeDummyTrace(); |
|
394 |
||
395 |
// hprof UTF-8 symbols section |
|
396 |
writeSymbols(); |
|
397 |
// HPROF_LOAD_CLASS records for all classes |
|
398 |
writeClasses(); |
|
399 |
||
400 |
// write heap data now |
|
401 |
out.writeByte((byte)HPROF_HEAP_DUMP); |
|
402 |
out.writeInt(0); // relative timestamp |
|
403 |
||
404 |
// remember position of dump length, we will fixup |
|
405 |
// length later - hprof format requires length. |
|
406 |
out.flush(); |
|
407 |
long dumpStart = chn.position(); |
|
408 |
||
409 |
// write dummy length of 0 and we'll fix it later. |
|
410 |
out.writeInt(0); |
|
411 |
||
412 |
// write CLASS_DUMP records |
|
413 |
writeClassDumpRecords(); |
|
414 |
||
415 |
// this will write heap data into the buffer stream |
|
416 |
super.write(); |
|
417 |
||
418 |
// flush buffer stream and throw it. |
|
419 |
out.flush(); |
|
420 |
out = null; |
|
421 |
||
422 |
// now get current position to calculate length |
|
423 |
long dumpEnd = chn.position(); |
|
424 |
// calculate length of heap data |
|
425 |
int dumpLen = (int) (dumpEnd - dumpStart - 4); |
|
426 |
||
427 |
// seek the position to write length |
|
428 |
chn.position(dumpStart); |
|
429 |
||
430 |
// write length as integer |
|
431 |
fos.write((dumpLen >>> 24) & 0xFF); |
|
432 |
fos.write((dumpLen >>> 16) & 0xFF); |
|
433 |
fos.write((dumpLen >>> 8) & 0xFF); |
|
434 |
fos.write((dumpLen >>> 0) & 0xFF); |
|
435 |
||
436 |
// close the file stream |
|
437 |
fos.close(); |
|
438 |
} |
|
439 |
||
440 |
private void writeClassDumpRecords() throws IOException { |
|
441 |
SystemDictionary sysDict = VM.getVM().getSystemDictionary(); |
|
442 |
try { |
|
443 |
sysDict.allClassesDo(new SystemDictionary.ClassVisitor() { |
|
444 |
public void visit(Klass k) { |
|
445 |
try { |
|
446 |
writeClassDumpRecord(k); |
|
447 |
} catch (IOException e) { |
|
448 |
throw new RuntimeException(e); |
|
449 |
} |
|
450 |
} |
|
451 |
}); |
|
452 |
} catch (RuntimeException re) { |
|
453 |
handleRuntimeException(re); |
|
454 |
} |
|
455 |
} |
|
456 |
||
457 |
protected void writeClass(Instance instance) throws IOException { |
|
8878
a6283814032c
7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
never
parents:
8729
diff
changeset
|
458 |
Klass reflectedKlass = java_lang_Class.asKlass(instance); |
1 | 459 |
// dump instance record only for primitive type Class objects. |
460 |
// all other Class objects are covered by writeClassDumpRecords. |
|
461 |
if (reflectedKlass == null) { |
|
462 |
writeInstance(instance); |
|
463 |
} |
|
464 |
} |
|
465 |
||
466 |
private void writeClassDumpRecord(Klass k) throws IOException { |
|
467 |
out.writeByte((byte)HPROF_GC_CLASS_DUMP); |
|
468 |
writeObjectID(k.getJavaMirror()); |
|
469 |
out.writeInt(DUMMY_STACK_TRACE_ID); |
|
470 |
Klass superKlass = k.getJavaSuper(); |
|
471 |
if (superKlass != null) { |
|
472 |
writeObjectID(superKlass.getJavaMirror()); |
|
473 |
} else { |
|
474 |
writeObjectID(null); |
|
475 |
} |
|
476 |
||
477 |
if (k instanceof InstanceKlass) { |
|
478 |
InstanceKlass ik = (InstanceKlass) k; |
|
479 |
writeObjectID(ik.getClassLoader()); |
|
17826
9ad5cd464a75
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents:
13728
diff
changeset
|
480 |
writeObjectID(null); // ik.getJavaMirror().getSigners()); |
9ad5cd464a75
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents:
13728
diff
changeset
|
481 |
writeObjectID(null); // ik.getJavaMirror().getProtectionDomain()); |
1 | 482 |
// two reserved id fields |
483 |
writeObjectID(null); |
|
484 |
writeObjectID(null); |
|
485 |
List fields = getInstanceFields(ik); |
|
486 |
int instSize = getSizeForFields(fields); |
|
487 |
classDataCache.put(ik, new ClassData(instSize, fields)); |
|
488 |
out.writeInt(instSize); |
|
489 |
||
490 |
// For now, ignore constant pool - HAT ignores too! |
|
491 |
// output number of cp entries as zero. |
|
492 |
out.writeShort((short) 0); |
|
493 |
||
494 |
List declaredFields = ik.getImmediateFields(); |
|
495 |
List staticFields = new ArrayList(); |
|
496 |
List instanceFields = new ArrayList(); |
|
497 |
Iterator itr = null; |
|
498 |
for (itr = declaredFields.iterator(); itr.hasNext();) { |
|
499 |
Field field = (Field) itr.next(); |
|
500 |
if (field.isStatic()) { |
|
501 |
staticFields.add(field); |
|
502 |
} else { |
|
503 |
instanceFields.add(field); |
|
504 |
} |
|
505 |
} |
|
506 |
||
507 |
// dump static field descriptors |
|
508 |
writeFieldDescriptors(staticFields, ik); |
|
509 |
||
510 |
// dump instance field descriptors |
|
511 |
writeFieldDescriptors(instanceFields, null); |
|
512 |
} else { |
|
513 |
if (k instanceof ObjArrayKlass) { |
|
514 |
ObjArrayKlass oak = (ObjArrayKlass) k; |
|
515 |
Klass bottomKlass = oak.getBottomKlass(); |
|
516 |
if (bottomKlass instanceof InstanceKlass) { |
|
517 |
InstanceKlass ik = (InstanceKlass) bottomKlass; |
|
518 |
writeObjectID(ik.getClassLoader()); |
|
17826
9ad5cd464a75
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents:
13728
diff
changeset
|
519 |
writeObjectID(null); // ik.getJavaMirror().getSigners()); |
9ad5cd464a75
8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents:
13728
diff
changeset
|
520 |
writeObjectID(null); // ik.getJavaMirror().getProtectionDomain()); |
1 | 521 |
} else { |
522 |
writeObjectID(null); |
|
523 |
writeObjectID(null); |
|
524 |
writeObjectID(null); |
|
525 |
} |
|
526 |
} else { |
|
527 |
writeObjectID(null); |
|
528 |
writeObjectID(null); |
|
529 |
writeObjectID(null); |
|
530 |
} |
|
531 |
// two reserved id fields |
|
532 |
writeObjectID(null); |
|
533 |
writeObjectID(null); |
|
534 |
// write zero instance size -- as instance size |
|
535 |
// is variable for arrays. |
|
536 |
out.writeInt(0); |
|
537 |
// no constant pool for array klasses |
|
538 |
out.writeShort((short) 0); |
|
539 |
// no static fields for array klasses |
|
540 |
out.writeShort((short) 0); |
|
541 |
// no instance fields for array klasses |
|
542 |
out.writeShort((short) 0); |
|
543 |
} |
|
544 |
} |
|
545 |
||
546 |
protected void writeJavaThread(JavaThread jt, int index) throws IOException { |
|
547 |
out.writeByte((byte) HPROF_GC_ROOT_THREAD_OBJ); |
|
548 |
writeObjectID(jt.getThreadObj()); |
|
549 |
out.writeInt(index); |
|
550 |
out.writeInt(DUMMY_STACK_TRACE_ID); |
|
551 |
writeLocalJNIHandles(jt, index); |
|
552 |
} |
|
553 |
||
554 |
protected void writeLocalJNIHandles(JavaThread jt, int index) throws IOException { |
|
555 |
final int threadIndex = index; |
|
556 |
JNIHandleBlock blk = jt.activeHandles(); |
|
557 |
if (blk != null) { |
|
558 |
try { |
|
559 |
blk.oopsDo(new AddressVisitor() { |
|
560 |
public void visitAddress(Address handleAddr) { |
|
561 |
try { |
|
562 |
if (handleAddr != null) { |
|
563 |
OopHandle oopHandle = handleAddr.getOopHandleAt(0); |
|
564 |
Oop oop = objectHeap.newOop(oopHandle); |
|
565 |
// exclude JNI handles hotspot internal objects |
|
566 |
if (oop != null && isJavaVisible(oop)) { |
|
567 |
out.writeByte((byte) HPROF_GC_ROOT_JNI_LOCAL); |
|
568 |
writeObjectID(oop); |
|
569 |
out.writeInt(threadIndex); |
|
570 |
out.writeInt(EMPTY_FRAME_DEPTH); |
|
571 |
} |
|
572 |
} |
|
573 |
} catch (IOException exp) { |
|
574 |
throw new RuntimeException(exp); |
|
575 |
} |
|
576 |
} |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
577 |
public void visitCompOopAddress(Address handleAddr) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
578 |
throw new RuntimeException( |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
579 |
" Should not reach here. JNIHandles are not compressed \n"); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
580 |
} |
1 | 581 |
}); |
582 |
} catch (RuntimeException re) { |
|
583 |
handleRuntimeException(re); |
|
584 |
} |
|
585 |
} |
|
586 |
} |
|
587 |
||
588 |
protected void writeGlobalJNIHandle(Address handleAddr) throws IOException { |
|
589 |
OopHandle oopHandle = handleAddr.getOopHandleAt(0); |
|
590 |
Oop oop = objectHeap.newOop(oopHandle); |
|
591 |
// exclude JNI handles of hotspot internal objects |
|
592 |
if (oop != null && isJavaVisible(oop)) { |
|
593 |
out.writeByte((byte) HPROF_GC_ROOT_JNI_GLOBAL); |
|
594 |
writeObjectID(oop); |
|
595 |
// use JNIHandle address as ID |
|
596 |
writeObjectID(getAddressValue(handleAddr)); |
|
597 |
} |
|
598 |
} |
|
599 |
||
600 |
protected void writeObjectArray(ObjArray array) throws IOException { |
|
601 |
out.writeByte((byte) HPROF_GC_OBJ_ARRAY_DUMP); |
|
602 |
writeObjectID(array); |
|
603 |
out.writeInt(DUMMY_STACK_TRACE_ID); |
|
604 |
out.writeInt((int) array.getLength()); |
|
605 |
writeObjectID(array.getKlass().getJavaMirror()); |
|
606 |
final int length = (int) array.getLength(); |
|
607 |
for (int index = 0; index < length; index++) { |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
608 |
OopHandle handle = array.getOopHandleAt(index); |
1 | 609 |
writeObjectID(getAddressValue(handle)); |
610 |
} |
|
611 |
} |
|
612 |
||
613 |
protected void writePrimitiveArray(TypeArray array) throws IOException { |
|
614 |
out.writeByte((byte) HPROF_GC_PRIM_ARRAY_DUMP); |
|
615 |
writeObjectID(array); |
|
616 |
out.writeInt(DUMMY_STACK_TRACE_ID); |
|
617 |
out.writeInt((int) array.getLength()); |
|
618 |
TypeArrayKlass tak = (TypeArrayKlass) array.getKlass(); |
|
619 |
final int type = (int) tak.getElementType(); |
|
620 |
out.writeByte((byte) type); |
|
621 |
switch (type) { |
|
622 |
case TypeArrayKlass.T_BOOLEAN: |
|
623 |
writeBooleanArray(array); |
|
624 |
break; |
|
625 |
case TypeArrayKlass.T_CHAR: |
|
626 |
writeCharArray(array); |
|
627 |
break; |
|
628 |
case TypeArrayKlass.T_FLOAT: |
|
629 |
writeFloatArray(array); |
|
630 |
break; |
|
631 |
case TypeArrayKlass.T_DOUBLE: |
|
632 |
writeDoubleArray(array); |
|
633 |
break; |
|
634 |
case TypeArrayKlass.T_BYTE: |
|
635 |
writeByteArray(array); |
|
636 |
break; |
|
637 |
case TypeArrayKlass.T_SHORT: |
|
638 |
writeShortArray(array); |
|
639 |
break; |
|
640 |
case TypeArrayKlass.T_INT: |
|
641 |
writeIntArray(array); |
|
642 |
break; |
|
643 |
case TypeArrayKlass.T_LONG: |
|
644 |
writeLongArray(array); |
|
645 |
break; |
|
646 |
default: |
|
647 |
throw new RuntimeException("should not reach here"); |
|
648 |
} |
|
649 |
} |
|
650 |
||
651 |
private void writeBooleanArray(TypeArray array) throws IOException { |
|
652 |
final int length = (int) array.getLength(); |
|
653 |
for (int index = 0; index < length; index++) { |
|
654 |
long offset = BOOLEAN_BASE_OFFSET + index * BOOLEAN_SIZE; |
|
655 |
out.writeBoolean(array.getHandle().getJBooleanAt(offset)); |
|
656 |
} |
|
657 |
} |
|
658 |
||
659 |
private void writeByteArray(TypeArray array) throws IOException { |
|
660 |
final int length = (int) array.getLength(); |
|
661 |
for (int index = 0; index < length; index++) { |
|
662 |
long offset = BYTE_BASE_OFFSET + index * BYTE_SIZE; |
|
663 |
out.writeByte(array.getHandle().getJByteAt(offset)); |
|
664 |
} |
|
665 |
} |
|
666 |
||
667 |
private void writeShortArray(TypeArray array) throws IOException { |
|
668 |
final int length = (int) array.getLength(); |
|
669 |
for (int index = 0; index < length; index++) { |
|
670 |
long offset = SHORT_BASE_OFFSET + index * SHORT_SIZE; |
|
671 |
out.writeShort(array.getHandle().getJShortAt(offset)); |
|
672 |
} |
|
673 |
} |
|
674 |
||
675 |
private void writeIntArray(TypeArray array) throws IOException { |
|
676 |
final int length = (int) array.getLength(); |
|
677 |
for (int index = 0; index < length; index++) { |
|
678 |
long offset = INT_BASE_OFFSET + index * INT_SIZE; |
|
679 |
out.writeInt(array.getHandle().getJIntAt(offset)); |
|
680 |
} |
|
681 |
} |
|
682 |
||
683 |
private void writeLongArray(TypeArray array) throws IOException { |
|
684 |
final int length = (int) array.getLength(); |
|
685 |
for (int index = 0; index < length; index++) { |
|
686 |
long offset = LONG_BASE_OFFSET + index * LONG_SIZE; |
|
687 |
out.writeLong(array.getHandle().getJLongAt(offset)); |
|
688 |
} |
|
689 |
} |
|
690 |
||
691 |
private void writeCharArray(TypeArray array) throws IOException { |
|
692 |
final int length = (int) array.getLength(); |
|
693 |
for (int index = 0; index < length; index++) { |
|
694 |
long offset = CHAR_BASE_OFFSET + index * CHAR_SIZE; |
|
695 |
out.writeChar(array.getHandle().getJCharAt(offset)); |
|
696 |
} |
|
697 |
} |
|
698 |
||
699 |
private void writeFloatArray(TypeArray array) throws IOException { |
|
700 |
final int length = (int) array.getLength(); |
|
701 |
for (int index = 0; index < length; index++) { |
|
702 |
long offset = FLOAT_BASE_OFFSET + index * FLOAT_SIZE; |
|
703 |
out.writeFloat(array.getHandle().getJFloatAt(offset)); |
|
704 |
} |
|
705 |
} |
|
706 |
||
707 |
private void writeDoubleArray(TypeArray array) throws IOException { |
|
708 |
final int length = (int) array.getLength(); |
|
709 |
for (int index = 0; index < length; index++) { |
|
710 |
long offset = DOUBLE_BASE_OFFSET + index * DOUBLE_SIZE; |
|
711 |
out.writeDouble(array.getHandle().getJDoubleAt(offset)); |
|
712 |
} |
|
713 |
} |
|
714 |
||
715 |
protected void writeInstance(Instance instance) throws IOException { |
|
716 |
out.writeByte((byte) HPROF_GC_INSTANCE_DUMP); |
|
717 |
writeObjectID(instance); |
|
718 |
out.writeInt(DUMMY_STACK_TRACE_ID); |
|
719 |
Klass klass = instance.getKlass(); |
|
720 |
writeObjectID(klass.getJavaMirror()); |
|
721 |
||
722 |
ClassData cd = (ClassData) classDataCache.get(klass); |
|
723 |
if (Assert.ASSERTS_ENABLED) { |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
8878
diff
changeset
|
724 |
Assert.that(cd != null, "can not get class data for " + klass.getName().asString() + klass.getAddress()); |
1 | 725 |
} |
726 |
List fields = cd.fields; |
|
727 |
int size = cd.instSize; |
|
728 |
out.writeInt(size); |
|
729 |
for (Iterator itr = fields.iterator(); itr.hasNext();) { |
|
730 |
writeField((Field) itr.next(), instance); |
|
731 |
} |
|
732 |
} |
|
733 |
||
734 |
//-- Internals only below this point |
|
735 |
||
736 |
private void writeFieldDescriptors(List fields, InstanceKlass ik) |
|
737 |
throws IOException { |
|
738 |
// ik == null for instance fields. |
|
739 |
out.writeShort((short) fields.size()); |
|
740 |
for (Iterator itr = fields.iterator(); itr.hasNext();) { |
|
741 |
Field field = (Field) itr.next(); |
|
742 |
Symbol name = symTbl.probe(field.getID().getName()); |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
5547
diff
changeset
|
743 |
writeSymbolID(name); |
1 | 744 |
char typeCode = (char) field.getSignature().getByteAt(0); |
745 |
int kind = signatureToHprofKind(typeCode); |
|
746 |
out.writeByte((byte)kind); |
|
747 |
if (ik != null) { |
|
748 |
// static field |
|
8729
cdb7525d39cb
7030300: more nightly failures after statics in Class changes
never
parents:
8076
diff
changeset
|
749 |
writeField(field, ik.getJavaMirror()); |
1 | 750 |
} |
751 |
} |
|
752 |
} |
|
753 |
||
754 |
public static int signatureToHprofKind(char ch) { |
|
755 |
switch (ch) { |
|
756 |
case JVM_SIGNATURE_CLASS: |
|
757 |
case JVM_SIGNATURE_ARRAY: |
|
758 |
return HPROF_NORMAL_OBJECT; |
|
759 |
case JVM_SIGNATURE_BOOLEAN: |
|
760 |
return HPROF_BOOLEAN; |
|
761 |
case JVM_SIGNATURE_CHAR: |
|
762 |
return HPROF_CHAR; |
|
763 |
case JVM_SIGNATURE_FLOAT: |
|
764 |
return HPROF_FLOAT; |
|
765 |
case JVM_SIGNATURE_DOUBLE: |
|
766 |
return HPROF_DOUBLE; |
|
767 |
case JVM_SIGNATURE_BYTE: |
|
768 |
return HPROF_BYTE; |
|
769 |
case JVM_SIGNATURE_SHORT: |
|
770 |
return HPROF_SHORT; |
|
771 |
case JVM_SIGNATURE_INT: |
|
772 |
return HPROF_INT; |
|
773 |
case JVM_SIGNATURE_LONG: |
|
774 |
return HPROF_LONG; |
|
775 |
default: |
|
776 |
throw new RuntimeException("should not reach here"); |
|
777 |
} |
|
778 |
} |
|
779 |
||
780 |
private void writeField(Field field, Oop oop) throws IOException { |
|
781 |
char typeCode = (char) field.getSignature().getByteAt(0); |
|
782 |
switch (typeCode) { |
|
783 |
case JVM_SIGNATURE_BOOLEAN: |
|
784 |
out.writeBoolean(((BooleanField)field).getValue(oop)); |
|
785 |
break; |
|
786 |
case JVM_SIGNATURE_CHAR: |
|
787 |
out.writeChar(((CharField)field).getValue(oop)); |
|
788 |
break; |
|
789 |
case JVM_SIGNATURE_BYTE: |
|
790 |
out.writeByte(((ByteField)field).getValue(oop)); |
|
791 |
break; |
|
792 |
case JVM_SIGNATURE_SHORT: |
|
793 |
out.writeShort(((ShortField)field).getValue(oop)); |
|
794 |
break; |
|
795 |
case JVM_SIGNATURE_INT: |
|
796 |
out.writeInt(((IntField)field).getValue(oop)); |
|
797 |
break; |
|
798 |
case JVM_SIGNATURE_LONG: |
|
799 |
out.writeLong(((LongField)field).getValue(oop)); |
|
800 |
break; |
|
801 |
case JVM_SIGNATURE_FLOAT: |
|
802 |
out.writeFloat(((FloatField)field).getValue(oop)); |
|
803 |
break; |
|
804 |
case JVM_SIGNATURE_DOUBLE: |
|
805 |
out.writeDouble(((DoubleField)field).getValue(oop)); |
|
806 |
break; |
|
807 |
case JVM_SIGNATURE_CLASS: |
|
808 |
case JVM_SIGNATURE_ARRAY: { |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
809 |
if (VM.getVM().isCompressedOopsEnabled()) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
810 |
OopHandle handle = ((NarrowOopField)field).getValueAsOopHandle(oop); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
811 |
writeObjectID(getAddressValue(handle)); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
812 |
} else { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
813 |
OopHandle handle = ((OopField)field).getValueAsOopHandle(oop); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
814 |
writeObjectID(getAddressValue(handle)); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
815 |
} |
1 | 816 |
break; |
817 |
} |
|
818 |
default: |
|
819 |
throw new RuntimeException("should not reach here"); |
|
820 |
} |
|
821 |
} |
|
822 |
||
823 |
private void writeHeader(int tag, int len) throws IOException { |
|
824 |
out.writeByte((byte)tag); |
|
825 |
out.writeInt(0); // current ticks |
|
826 |
out.writeInt(len); |
|
827 |
} |
|
828 |
||
829 |
private void writeDummyTrace() throws IOException { |
|
830 |
writeHeader(HPROF_TRACE, 3 * 4); |
|
831 |
out.writeInt(DUMMY_STACK_TRACE_ID); |
|
832 |
out.writeInt(0); |
|
833 |
out.writeInt(0); |
|
834 |
} |
|
835 |
||
836 |
private void writeSymbols() throws IOException { |
|
837 |
try { |
|
838 |
symTbl.symbolsDo(new SymbolTable.SymbolVisitor() { |
|
839 |
public void visit(Symbol sym) { |
|
840 |
try { |
|
841 |
writeSymbol(sym); |
|
842 |
} catch (IOException exp) { |
|
843 |
throw new RuntimeException(exp); |
|
844 |
} |
|
845 |
} |
|
846 |
}); |
|
847 |
} catch (RuntimeException re) { |
|
848 |
handleRuntimeException(re); |
|
849 |
} |
|
850 |
} |
|
851 |
||
852 |
private void writeSymbol(Symbol sym) throws IOException { |
|
853 |
byte[] buf = sym.asString().getBytes("UTF-8"); |
|
854 |
writeHeader(HPROF_UTF8, buf.length + OBJ_ID_SIZE); |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
5547
diff
changeset
|
855 |
writeSymbolID(sym); |
1 | 856 |
out.write(buf); |
857 |
} |
|
858 |
||
859 |
private void writeClasses() throws IOException { |
|
860 |
// write class list (id, name) association |
|
861 |
SystemDictionary sysDict = VM.getVM().getSystemDictionary(); |
|
862 |
try { |
|
863 |
sysDict.allClassesDo(new SystemDictionary.ClassVisitor() { |
|
864 |
private int serialNum = 1; |
|
865 |
public void visit(Klass k) { |
|
866 |
try { |
|
867 |
Instance clazz = k.getJavaMirror(); |
|
868 |
writeHeader(HPROF_LOAD_CLASS, 2 * (OBJ_ID_SIZE + 4)); |
|
869 |
out.writeInt(serialNum); |
|
870 |
writeObjectID(clazz); |
|
871 |
out.writeInt(DUMMY_STACK_TRACE_ID); |
|
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
5547
diff
changeset
|
872 |
writeSymbolID(k.getName()); |
1 | 873 |
serialNum++; |
874 |
} catch (IOException exp) { |
|
875 |
throw new RuntimeException(exp); |
|
876 |
} |
|
877 |
} |
|
878 |
}); |
|
879 |
} catch (RuntimeException re) { |
|
880 |
handleRuntimeException(re); |
|
881 |
} |
|
882 |
} |
|
883 |
||
884 |
// writes hprof binary file header |
|
885 |
private void writeFileHeader() throws IOException { |
|
886 |
// version string |
|
887 |
out.writeBytes(HPROF_HEADER); |
|
888 |
out.writeByte((byte)'\0'); |
|
889 |
||
890 |
// write identifier size. we use pointers as identifiers. |
|
891 |
out.writeInt(OBJ_ID_SIZE); |
|
892 |
||
893 |
// timestamp -- file creation time. |
|
894 |
out.writeLong(System.currentTimeMillis()); |
|
895 |
} |
|
896 |
||
897 |
// writes unique ID for an object |
|
898 |
private void writeObjectID(Oop oop) throws IOException { |
|
899 |
OopHandle handle = (oop != null)? oop.getHandle() : null; |
|
900 |
long address = getAddressValue(handle); |
|
901 |
writeObjectID(address); |
|
902 |
} |
|
903 |
||
8076
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
5547
diff
changeset
|
904 |
private void writeSymbolID(Symbol sym) throws IOException { |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
5547
diff
changeset
|
905 |
writeObjectID(getAddressValue(sym.getAddress())); |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
5547
diff
changeset
|
906 |
} |
96d498ec7ae1
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
5547
diff
changeset
|
907 |
|
1 | 908 |
private void writeObjectID(long address) throws IOException { |
909 |
if (OBJ_ID_SIZE == 4) { |
|
910 |
out.writeInt((int) address); |
|
911 |
} else { |
|
912 |
out.writeLong(address); |
|
913 |
} |
|
914 |
} |
|
915 |
||
916 |
private long getAddressValue(Address addr) { |
|
917 |
return (addr == null)? 0L : dbg.getAddressValue(addr); |
|
918 |
} |
|
919 |
||
920 |
// get all declared as well as inherited (directly/indirectly) fields |
|
921 |
private static List/*<Field>*/ getInstanceFields(InstanceKlass ik) { |
|
922 |
InstanceKlass klass = ik; |
|
923 |
List res = new ArrayList(); |
|
924 |
while (klass != null) { |
|
925 |
List curFields = klass.getImmediateFields(); |
|
926 |
for (Iterator itr = curFields.iterator(); itr.hasNext();) { |
|
927 |
Field f = (Field) itr.next(); |
|
928 |
if (! f.isStatic()) { |
|
929 |
res.add(f); |
|
930 |
} |
|
931 |
} |
|
932 |
klass = (InstanceKlass) klass.getSuper(); |
|
933 |
} |
|
934 |
return res; |
|
935 |
} |
|
936 |
||
937 |
// get size in bytes (in stream) required for given fields. Note |
|
938 |
// that this is not the same as object size in heap. The size in |
|
939 |
// heap will include size of padding/alignment bytes as well. |
|
940 |
private int getSizeForFields(List fields) { |
|
941 |
int size = 0; |
|
942 |
for (Iterator itr = fields.iterator(); itr.hasNext();) { |
|
943 |
Field field = (Field) itr.next(); |
|
944 |
char typeCode = (char) field.getSignature().getByteAt(0); |
|
945 |
switch (typeCode) { |
|
946 |
case JVM_SIGNATURE_BOOLEAN: |
|
947 |
case JVM_SIGNATURE_BYTE: |
|
948 |
size++; |
|
949 |
break; |
|
950 |
case JVM_SIGNATURE_CHAR: |
|
951 |
case JVM_SIGNATURE_SHORT: |
|
952 |
size += 2; |
|
953 |
break; |
|
954 |
case JVM_SIGNATURE_INT: |
|
955 |
case JVM_SIGNATURE_FLOAT: |
|
956 |
size += 4; |
|
957 |
break; |
|
958 |
case JVM_SIGNATURE_CLASS: |
|
959 |
case JVM_SIGNATURE_ARRAY: |
|
960 |
size += OBJ_ID_SIZE; |
|
961 |
break; |
|
962 |
case JVM_SIGNATURE_LONG: |
|
963 |
case JVM_SIGNATURE_DOUBLE: |
|
964 |
size += 8; |
|
965 |
break; |
|
966 |
default: |
|
967 |
throw new RuntimeException("should not reach here"); |
|
968 |
} |
|
969 |
} |
|
970 |
return size; |
|
971 |
} |
|
972 |
||
973 |
// We don't have allocation site info. We write a dummy |
|
974 |
// stack trace with this id. |
|
975 |
private static final int DUMMY_STACK_TRACE_ID = 1; |
|
976 |
private static final int EMPTY_FRAME_DEPTH = -1; |
|
977 |
||
978 |
private DataOutputStream out; |
|
979 |
private Debugger dbg; |
|
980 |
private ObjectHeap objectHeap; |
|
981 |
private SymbolTable symTbl; |
|
982 |
||
983 |
// oopSize of the debuggee |
|
984 |
private int OBJ_ID_SIZE; |
|
985 |
||
986 |
private long BOOLEAN_BASE_OFFSET; |
|
987 |
private long BYTE_BASE_OFFSET; |
|
988 |
private long CHAR_BASE_OFFSET; |
|
989 |
private long SHORT_BASE_OFFSET; |
|
990 |
private long INT_BASE_OFFSET; |
|
991 |
private long LONG_BASE_OFFSET; |
|
992 |
private long FLOAT_BASE_OFFSET; |
|
993 |
private long DOUBLE_BASE_OFFSET; |
|
994 |
private long OBJECT_BASE_OFFSET; |
|
995 |
||
996 |
private long BOOLEAN_SIZE; |
|
997 |
private long BYTE_SIZE; |
|
998 |
private long CHAR_SIZE; |
|
999 |
private long SHORT_SIZE; |
|
1000 |
private long INT_SIZE; |
|
1001 |
private long LONG_SIZE; |
|
1002 |
private long FLOAT_SIZE; |
|
1003 |
private long DOUBLE_SIZE; |
|
1004 |
||
1005 |
private static class ClassData { |
|
1006 |
int instSize; |
|
1007 |
List fields; |
|
1008 |
ClassData(int instSize, List fields) { |
|
1009 |
this.instSize = instSize; |
|
1010 |
this.fields = fields; |
|
1011 |
} |
|
1012 |
} |
|
1013 |
||
1014 |
private Map classDataCache = new HashMap(); // <InstanceKlass, ClassData> |
|
1015 |
} |