truffle: src/share/vm/services/heapDumper.cpp annotate

annotate src/share/vm/services/heapDumper.cpp @ 2143:17c778814856

6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun Summary: Check buffer size before using and use dynamic buffer sizes for subsequent calls. Reviewed-by: kamg, dholmes

author	coleenp
date	Fri, 14 Jan 2011 13:47:53 -0500
parents	f95d63e2154a
children	3582bf76420e

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
1775 30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	2 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
0 a61af66fc99e Initial load duke parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load duke parents: diff changeset	4 *
a61af66fc99e Initial load duke parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load duke parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load duke parents: diff changeset	7 * published by the Free Software Foundation.
a61af66fc99e Initial load duke parents: diff changeset	8 *
a61af66fc99e Initial load duke parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load duke parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load duke parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load duke parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load duke parents: diff changeset	13 * accompanied this code).
a61af66fc99e Initial load duke parents: diff changeset	14 *
a61af66fc99e Initial load duke parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load duke parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load duke parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load duke parents: diff changeset	18 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1142 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1142 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1142 diff changeset	21 * questions.
0 a61af66fc99e Initial load duke parents: diff changeset	22 *
a61af66fc99e Initial load duke parents: diff changeset	23 */
a61af66fc99e Initial load duke parents: diff changeset	24
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	25 #include "precompiled.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	26 #include "classfile/symbolTable.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	27 #include "classfile/systemDictionary.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	28 #include "classfile/vmSymbols.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	29 #include "gc_implementation/shared/vmGCOperations.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	30 #include "memory/genCollectedHeap.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	31 #include "memory/universe.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	32 #include "oops/objArrayKlass.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	33 #include "runtime/javaCalls.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	34 #include "runtime/jniHandles.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	35 #include "runtime/reflectionUtils.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	36 #include "runtime/vframe.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	37 #include "runtime/vmThread.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	38 #include "runtime/vm_operations.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	39 #include "services/heapDumper.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	40 #include "services/threadService.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	41 #include "utilities/ostream.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	42 #ifndef SERIALGC
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	43 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1775 diff changeset	44 #endif
0 a61af66fc99e Initial load duke parents: diff changeset	45
a61af66fc99e Initial load duke parents: diff changeset	46 /*
a61af66fc99e Initial load duke parents: diff changeset	47 * HPROF binary format - description copied from:
a61af66fc99e Initial load duke parents: diff changeset	48 * src/share/demo/jvmti/hprof/hprof_io.c
a61af66fc99e Initial load duke parents: diff changeset	49 *
a61af66fc99e Initial load duke parents: diff changeset	50 *
a61af66fc99e Initial load duke parents: diff changeset	51 * header "JAVA PROFILE 1.0.1" or "JAVA PROFILE 1.0.2"
a61af66fc99e Initial load duke parents: diff changeset	52 * (0-terminated)
a61af66fc99e Initial load duke parents: diff changeset	53 *
a61af66fc99e Initial load duke parents: diff changeset	54 * u4 size of identifiers. Identifiers are used to represent
a61af66fc99e Initial load duke parents: diff changeset	55 * UTF8 strings, objects, stack traces, etc. They usually
a61af66fc99e Initial load duke parents: diff changeset	56 * have the same size as host pointers. For example, on
a61af66fc99e Initial load duke parents: diff changeset	57 * Solaris and Win32, the size is 4.
a61af66fc99e Initial load duke parents: diff changeset	58 * u4 high word
a61af66fc99e Initial load duke parents: diff changeset	59 * u4 low word number of milliseconds since 0:00 GMT, 1/1/70
a61af66fc99e Initial load duke parents: diff changeset	60 * [record]* a sequence of records.
a61af66fc99e Initial load duke parents: diff changeset	61 *
a61af66fc99e Initial load duke parents: diff changeset	62 *
a61af66fc99e Initial load duke parents: diff changeset	63 * Record format:
a61af66fc99e Initial load duke parents: diff changeset	64 *
a61af66fc99e Initial load duke parents: diff changeset	65 * u1 a TAG denoting the type of the record
a61af66fc99e Initial load duke parents: diff changeset	66 * u4 number of microseconds since the time stamp in the
a61af66fc99e Initial load duke parents: diff changeset	67 * header. (wraps around in a little more than an hour)
a61af66fc99e Initial load duke parents: diff changeset	68 * u4 number of bytes remaining in the record. Note that
a61af66fc99e Initial load duke parents: diff changeset	69 * this number excludes the tag and the length field itself.
a61af66fc99e Initial load duke parents: diff changeset	70 * [u1]* BODY of the record (a sequence of bytes)
a61af66fc99e Initial load duke parents: diff changeset	71 *
a61af66fc99e Initial load duke parents: diff changeset	72 *
a61af66fc99e Initial load duke parents: diff changeset	73 * The following TAGs are supported:
a61af66fc99e Initial load duke parents: diff changeset	74 *
a61af66fc99e Initial load duke parents: diff changeset	75 * TAG BODY notes
a61af66fc99e Initial load duke parents: diff changeset	76 *----------------------------------------------------------
a61af66fc99e Initial load duke parents: diff changeset	77 * HPROF_UTF8 a UTF8-encoded name
a61af66fc99e Initial load duke parents: diff changeset	78 *
a61af66fc99e Initial load duke parents: diff changeset	79 * id name ID
a61af66fc99e Initial load duke parents: diff changeset	80 * [u1]* UTF8 characters (no trailing zero)
a61af66fc99e Initial load duke parents: diff changeset	81 *
a61af66fc99e Initial load duke parents: diff changeset	82 * HPROF_LOAD_CLASS a newly loaded class
a61af66fc99e Initial load duke parents: diff changeset	83 *
a61af66fc99e Initial load duke parents: diff changeset	84 * u4 class serial number (> 0)
a61af66fc99e Initial load duke parents: diff changeset	85 * id class object ID
a61af66fc99e Initial load duke parents: diff changeset	86 * u4 stack trace serial number
a61af66fc99e Initial load duke parents: diff changeset	87 * id class name ID
a61af66fc99e Initial load duke parents: diff changeset	88 *
a61af66fc99e Initial load duke parents: diff changeset	89 * HPROF_UNLOAD_CLASS an unloading class
a61af66fc99e Initial load duke parents: diff changeset	90 *
a61af66fc99e Initial load duke parents: diff changeset	91 * u4 class serial_number
a61af66fc99e Initial load duke parents: diff changeset	92 *
a61af66fc99e Initial load duke parents: diff changeset	93 * HPROF_FRAME a Java stack frame
a61af66fc99e Initial load duke parents: diff changeset	94 *
a61af66fc99e Initial load duke parents: diff changeset	95 * id stack frame ID
a61af66fc99e Initial load duke parents: diff changeset	96 * id method name ID
a61af66fc99e Initial load duke parents: diff changeset	97 * id method signature ID
a61af66fc99e Initial load duke parents: diff changeset	98 * id source file name ID
a61af66fc99e Initial load duke parents: diff changeset	99 * u4 class serial number
a61af66fc99e Initial load duke parents: diff changeset	100 * i4 line number. >0: normal
a61af66fc99e Initial load duke parents: diff changeset	101 * -1: unknown
a61af66fc99e Initial load duke parents: diff changeset	102 * -2: compiled method
a61af66fc99e Initial load duke parents: diff changeset	103 * -3: native method
a61af66fc99e Initial load duke parents: diff changeset	104 *
a61af66fc99e Initial load duke parents: diff changeset	105 * HPROF_TRACE a Java stack trace
a61af66fc99e Initial load duke parents: diff changeset	106 *
a61af66fc99e Initial load duke parents: diff changeset	107 * u4 stack trace serial number
a61af66fc99e Initial load duke parents: diff changeset	108 * u4 thread serial number
a61af66fc99e Initial load duke parents: diff changeset	109 * u4 number of frames
a61af66fc99e Initial load duke parents: diff changeset	110 * [id]* stack frame IDs
a61af66fc99e Initial load duke parents: diff changeset	111 *
a61af66fc99e Initial load duke parents: diff changeset	112 *
a61af66fc99e Initial load duke parents: diff changeset	113 * HPROF_ALLOC_SITES a set of heap allocation sites, obtained after GC
a61af66fc99e Initial load duke parents: diff changeset	114 *
a61af66fc99e Initial load duke parents: diff changeset	115 * u2 flags 0x0001: incremental vs. complete
a61af66fc99e Initial load duke parents: diff changeset	116 * 0x0002: sorted by allocation vs. live
a61af66fc99e Initial load duke parents: diff changeset	117 * 0x0004: whether to force a GC
a61af66fc99e Initial load duke parents: diff changeset	118 * u4 cutoff ratio
a61af66fc99e Initial load duke parents: diff changeset	119 * u4 total live bytes
a61af66fc99e Initial load duke parents: diff changeset	120 * u4 total live instances
a61af66fc99e Initial load duke parents: diff changeset	121 * u8 total bytes allocated
a61af66fc99e Initial load duke parents: diff changeset	122 * u8 total instances allocated
a61af66fc99e Initial load duke parents: diff changeset	123 * u4 number of sites that follow
a61af66fc99e Initial load duke parents: diff changeset	124 * [u1 is_array: 0: normal object
a61af66fc99e Initial load duke parents: diff changeset	125 * 2: object array
a61af66fc99e Initial load duke parents: diff changeset	126 * 4: boolean array
a61af66fc99e Initial load duke parents: diff changeset	127 * 5: char array
a61af66fc99e Initial load duke parents: diff changeset	128 * 6: float array
a61af66fc99e Initial load duke parents: diff changeset	129 * 7: double array
a61af66fc99e Initial load duke parents: diff changeset	130 * 8: byte array
a61af66fc99e Initial load duke parents: diff changeset	131 * 9: short array
a61af66fc99e Initial load duke parents: diff changeset	132 * 10: int array
a61af66fc99e Initial load duke parents: diff changeset	133 * 11: long array
a61af66fc99e Initial load duke parents: diff changeset	134 * u4 class serial number (may be zero during startup)
a61af66fc99e Initial load duke parents: diff changeset	135 * u4 stack trace serial number
a61af66fc99e Initial load duke parents: diff changeset	136 * u4 number of bytes alive
a61af66fc99e Initial load duke parents: diff changeset	137 * u4 number of instances alive
a61af66fc99e Initial load duke parents: diff changeset	138 * u4 number of bytes allocated
a61af66fc99e Initial load duke parents: diff changeset	139 * u4]* number of instance allocated
a61af66fc99e Initial load duke parents: diff changeset	140 *
a61af66fc99e Initial load duke parents: diff changeset	141 * HPROF_START_THREAD a newly started thread.
a61af66fc99e Initial load duke parents: diff changeset	142 *
a61af66fc99e Initial load duke parents: diff changeset	143 * u4 thread serial number (> 0)
a61af66fc99e Initial load duke parents: diff changeset	144 * id thread object ID
a61af66fc99e Initial load duke parents: diff changeset	145 * u4 stack trace serial number
a61af66fc99e Initial load duke parents: diff changeset	146 * id thread name ID
a61af66fc99e Initial load duke parents: diff changeset	147 * id thread group name ID
a61af66fc99e Initial load duke parents: diff changeset	148 * id thread group parent name ID
a61af66fc99e Initial load duke parents: diff changeset	149 *
a61af66fc99e Initial load duke parents: diff changeset	150 * HPROF_END_THREAD a terminating thread.
a61af66fc99e Initial load duke parents: diff changeset	151 *
a61af66fc99e Initial load duke parents: diff changeset	152 * u4 thread serial number
a61af66fc99e Initial load duke parents: diff changeset	153 *
a61af66fc99e Initial load duke parents: diff changeset	154 * HPROF_HEAP_SUMMARY heap summary
a61af66fc99e Initial load duke parents: diff changeset	155 *
a61af66fc99e Initial load duke parents: diff changeset	156 * u4 total live bytes
a61af66fc99e Initial load duke parents: diff changeset	157 * u4 total live instances
a61af66fc99e Initial load duke parents: diff changeset	158 * u8 total bytes allocated
a61af66fc99e Initial load duke parents: diff changeset	159 * u8 total instances allocated
a61af66fc99e Initial load duke parents: diff changeset	160 *
a61af66fc99e Initial load duke parents: diff changeset	161 * HPROF_HEAP_DUMP denote a heap dump
a61af66fc99e Initial load duke parents: diff changeset	162 *
a61af66fc99e Initial load duke parents: diff changeset	163 * [heap dump sub-records]*
a61af66fc99e Initial load duke parents: diff changeset	164 *
a61af66fc99e Initial load duke parents: diff changeset	165 * There are four kinds of heap dump sub-records:
a61af66fc99e Initial load duke parents: diff changeset	166 *
a61af66fc99e Initial load duke parents: diff changeset	167 * u1 sub-record type
a61af66fc99e Initial load duke parents: diff changeset	168 *
a61af66fc99e Initial load duke parents: diff changeset	169 * HPROF_GC_ROOT_UNKNOWN unknown root
a61af66fc99e Initial load duke parents: diff changeset	170 *
a61af66fc99e Initial load duke parents: diff changeset	171 * id object ID
a61af66fc99e Initial load duke parents: diff changeset	172 *
a61af66fc99e Initial load duke parents: diff changeset	173 * HPROF_GC_ROOT_THREAD_OBJ thread object
a61af66fc99e Initial load duke parents: diff changeset	174 *
a61af66fc99e Initial load duke parents: diff changeset	175 * id thread object ID (may be 0 for a
a61af66fc99e Initial load duke parents: diff changeset	176 * thread newly attached through JNI)
a61af66fc99e Initial load duke parents: diff changeset	177 * u4 thread sequence number
a61af66fc99e Initial load duke parents: diff changeset	178 * u4 stack trace sequence number
a61af66fc99e Initial load duke parents: diff changeset	179 *
a61af66fc99e Initial load duke parents: diff changeset	180 * HPROF_GC_ROOT_JNI_GLOBAL JNI global ref root
a61af66fc99e Initial load duke parents: diff changeset	181 *
a61af66fc99e Initial load duke parents: diff changeset	182 * id object ID
a61af66fc99e Initial load duke parents: diff changeset	183 * id JNI global ref ID
a61af66fc99e Initial load duke parents: diff changeset	184 *
a61af66fc99e Initial load duke parents: diff changeset	185 * HPROF_GC_ROOT_JNI_LOCAL JNI local ref
a61af66fc99e Initial load duke parents: diff changeset	186 *
a61af66fc99e Initial load duke parents: diff changeset	187 * id object ID
a61af66fc99e Initial load duke parents: diff changeset	188 * u4 thread serial number
a61af66fc99e Initial load duke parents: diff changeset	189 * u4 frame # in stack trace (-1 for empty)
a61af66fc99e Initial load duke parents: diff changeset	190 *
a61af66fc99e Initial load duke parents: diff changeset	191 * HPROF_GC_ROOT_JAVA_FRAME Java stack frame
a61af66fc99e Initial load duke parents: diff changeset	192 *
a61af66fc99e Initial load duke parents: diff changeset	193 * id object ID
a61af66fc99e Initial load duke parents: diff changeset	194 * u4 thread serial number
a61af66fc99e Initial load duke parents: diff changeset	195 * u4 frame # in stack trace (-1 for empty)
a61af66fc99e Initial load duke parents: diff changeset	196 *
a61af66fc99e Initial load duke parents: diff changeset	197 * HPROF_GC_ROOT_NATIVE_STACK Native stack
a61af66fc99e Initial load duke parents: diff changeset	198 *
a61af66fc99e Initial load duke parents: diff changeset	199 * id object ID
a61af66fc99e Initial load duke parents: diff changeset	200 * u4 thread serial number
a61af66fc99e Initial load duke parents: diff changeset	201 *
a61af66fc99e Initial load duke parents: diff changeset	202 * HPROF_GC_ROOT_STICKY_CLASS System class
a61af66fc99e Initial load duke parents: diff changeset	203 *
a61af66fc99e Initial load duke parents: diff changeset	204 * id object ID
a61af66fc99e Initial load duke parents: diff changeset	205 *
a61af66fc99e Initial load duke parents: diff changeset	206 * HPROF_GC_ROOT_THREAD_BLOCK Reference from thread block
a61af66fc99e Initial load duke parents: diff changeset	207 *
a61af66fc99e Initial load duke parents: diff changeset	208 * id object ID
a61af66fc99e Initial load duke parents: diff changeset	209 * u4 thread serial number
a61af66fc99e Initial load duke parents: diff changeset	210 *
a61af66fc99e Initial load duke parents: diff changeset	211 * HPROF_GC_ROOT_MONITOR_USED Busy monitor
a61af66fc99e Initial load duke parents: diff changeset	212 *
a61af66fc99e Initial load duke parents: diff changeset	213 * id object ID
a61af66fc99e Initial load duke parents: diff changeset	214 *
a61af66fc99e Initial load duke parents: diff changeset	215 * HPROF_GC_CLASS_DUMP dump of a class object
a61af66fc99e Initial load duke parents: diff changeset	216 *
a61af66fc99e Initial load duke parents: diff changeset	217 * id class object ID
a61af66fc99e Initial load duke parents: diff changeset	218 * u4 stack trace serial number
a61af66fc99e Initial load duke parents: diff changeset	219 * id super class object ID
a61af66fc99e Initial load duke parents: diff changeset	220 * id class loader object ID
a61af66fc99e Initial load duke parents: diff changeset	221 * id signers object ID
a61af66fc99e Initial load duke parents: diff changeset	222 * id protection domain object ID
a61af66fc99e Initial load duke parents: diff changeset	223 * id reserved
a61af66fc99e Initial load duke parents: diff changeset	224 * id reserved
a61af66fc99e Initial load duke parents: diff changeset	225 *
a61af66fc99e Initial load duke parents: diff changeset	226 * u4 instance size (in bytes)
a61af66fc99e Initial load duke parents: diff changeset	227 *
a61af66fc99e Initial load duke parents: diff changeset	228 * u2 size of constant pool
a61af66fc99e Initial load duke parents: diff changeset	229 * [u2, constant pool index,
a61af66fc99e Initial load duke parents: diff changeset	230 * ty, type
a61af66fc99e Initial load duke parents: diff changeset	231 * 2: object
a61af66fc99e Initial load duke parents: diff changeset	232 * 4: boolean
a61af66fc99e Initial load duke parents: diff changeset	233 * 5: char
a61af66fc99e Initial load duke parents: diff changeset	234 * 6: float
a61af66fc99e Initial load duke parents: diff changeset	235 * 7: double
a61af66fc99e Initial load duke parents: diff changeset	236 * 8: byte
a61af66fc99e Initial load duke parents: diff changeset	237 * 9: short
a61af66fc99e Initial load duke parents: diff changeset	238 * 10: int
a61af66fc99e Initial load duke parents: diff changeset	239 * 11: long
a61af66fc99e Initial load duke parents: diff changeset	240 * vl]* and value
a61af66fc99e Initial load duke parents: diff changeset	241 *
a61af66fc99e Initial load duke parents: diff changeset	242 * u2 number of static fields
a61af66fc99e Initial load duke parents: diff changeset	243 * [id, static field name,
a61af66fc99e Initial load duke parents: diff changeset	244 * ty, type,
a61af66fc99e Initial load duke parents: diff changeset	245 * vl]* and value
a61af66fc99e Initial load duke parents: diff changeset	246 *
a61af66fc99e Initial load duke parents: diff changeset	247 * u2 number of inst. fields (not inc. super)
a61af66fc99e Initial load duke parents: diff changeset	248 * [id, instance field name,
a61af66fc99e Initial load duke parents: diff changeset	249 * ty]* type
a61af66fc99e Initial load duke parents: diff changeset	250 *
a61af66fc99e Initial load duke parents: diff changeset	251 * HPROF_GC_INSTANCE_DUMP dump of a normal object
a61af66fc99e Initial load duke parents: diff changeset	252 *
a61af66fc99e Initial load duke parents: diff changeset	253 * id object ID
a61af66fc99e Initial load duke parents: diff changeset	254 * u4 stack trace serial number
a61af66fc99e Initial load duke parents: diff changeset	255 * id class object ID
a61af66fc99e Initial load duke parents: diff changeset	256 * u4 number of bytes that follow
a61af66fc99e Initial load duke parents: diff changeset	257 * [vl]* instance field values (class, followed
a61af66fc99e Initial load duke parents: diff changeset	258 * by super, super's super ...)
a61af66fc99e Initial load duke parents: diff changeset	259 *
a61af66fc99e Initial load duke parents: diff changeset	260 * HPROF_GC_OBJ_ARRAY_DUMP dump of an object array
a61af66fc99e Initial load duke parents: diff changeset	261 *
a61af66fc99e Initial load duke parents: diff changeset	262 * id array object ID
a61af66fc99e Initial load duke parents: diff changeset	263 * u4 stack trace serial number
a61af66fc99e Initial load duke parents: diff changeset	264 * u4 number of elements
a61af66fc99e Initial load duke parents: diff changeset	265 * id array class ID
a61af66fc99e Initial load duke parents: diff changeset	266 * [id]* elements
a61af66fc99e Initial load duke parents: diff changeset	267 *
a61af66fc99e Initial load duke parents: diff changeset	268 * HPROF_GC_PRIM_ARRAY_DUMP dump of a primitive array
a61af66fc99e Initial load duke parents: diff changeset	269 *
a61af66fc99e Initial load duke parents: diff changeset	270 * id array object ID
a61af66fc99e Initial load duke parents: diff changeset	271 * u4 stack trace serial number
a61af66fc99e Initial load duke parents: diff changeset	272 * u4 number of elements
a61af66fc99e Initial load duke parents: diff changeset	273 * u1 element type
a61af66fc99e Initial load duke parents: diff changeset	274 * 4: boolean array
a61af66fc99e Initial load duke parents: diff changeset	275 * 5: char array
a61af66fc99e Initial load duke parents: diff changeset	276 * 6: float array
a61af66fc99e Initial load duke parents: diff changeset	277 * 7: double array
a61af66fc99e Initial load duke parents: diff changeset	278 * 8: byte array
a61af66fc99e Initial load duke parents: diff changeset	279 * 9: short array
a61af66fc99e Initial load duke parents: diff changeset	280 * 10: int array
a61af66fc99e Initial load duke parents: diff changeset	281 * 11: long array
a61af66fc99e Initial load duke parents: diff changeset	282 * [u1]* elements
a61af66fc99e Initial load duke parents: diff changeset	283 *
a61af66fc99e Initial load duke parents: diff changeset	284 * HPROF_CPU_SAMPLES a set of sample traces of running threads
a61af66fc99e Initial load duke parents: diff changeset	285 *
a61af66fc99e Initial load duke parents: diff changeset	286 * u4 total number of samples
a61af66fc99e Initial load duke parents: diff changeset	287 * u4 # of traces
a61af66fc99e Initial load duke parents: diff changeset	288 * [u4 # of samples
a61af66fc99e Initial load duke parents: diff changeset	289 * u4]* stack trace serial number
a61af66fc99e Initial load duke parents: diff changeset	290 *
a61af66fc99e Initial load duke parents: diff changeset	291 * HPROF_CONTROL_SETTINGS the settings of on/off switches
a61af66fc99e Initial load duke parents: diff changeset	292 *
a61af66fc99e Initial load duke parents: diff changeset	293 * u4 0x00000001: alloc traces on/off
a61af66fc99e Initial load duke parents: diff changeset	294 * 0x00000002: cpu sampling on/off
a61af66fc99e Initial load duke parents: diff changeset	295 * u2 stack trace depth
a61af66fc99e Initial load duke parents: diff changeset	296 *
a61af66fc99e Initial load duke parents: diff changeset	297 *
a61af66fc99e Initial load duke parents: diff changeset	298 * When the header is "JAVA PROFILE 1.0.2" a heap dump can optionally
a61af66fc99e Initial load duke parents: diff changeset	299 * be generated as a sequence of heap dump segments. This sequence is
a61af66fc99e Initial load duke parents: diff changeset	300 * terminated by an end record. The additional tags allowed by format
a61af66fc99e Initial load duke parents: diff changeset	301 * "JAVA PROFILE 1.0.2" are:
a61af66fc99e Initial load duke parents: diff changeset	302 *
a61af66fc99e Initial load duke parents: diff changeset	303 * HPROF_HEAP_DUMP_SEGMENT denote a heap dump segment
a61af66fc99e Initial load duke parents: diff changeset	304 *
a61af66fc99e Initial load duke parents: diff changeset	305 * [heap dump sub-records]*
a61af66fc99e Initial load duke parents: diff changeset	306 * The same sub-record types allowed by HPROF_HEAP_DUMP
a61af66fc99e Initial load duke parents: diff changeset	307 *
a61af66fc99e Initial load duke parents: diff changeset	308 * HPROF_HEAP_DUMP_END denotes the end of a heap dump
a61af66fc99e Initial load duke parents: diff changeset	309 *
a61af66fc99e Initial load duke parents: diff changeset	310 */
a61af66fc99e Initial load duke parents: diff changeset	311
a61af66fc99e Initial load duke parents: diff changeset	312
a61af66fc99e Initial load duke parents: diff changeset	313 // HPROF tags
a61af66fc99e Initial load duke parents: diff changeset	314
a61af66fc99e Initial load duke parents: diff changeset	315 typedef enum {
a61af66fc99e Initial load duke parents: diff changeset	316 // top-level records
a61af66fc99e Initial load duke parents: diff changeset	317 HPROF_UTF8 = 0x01,
a61af66fc99e Initial load duke parents: diff changeset	318 HPROF_LOAD_CLASS = 0x02,
a61af66fc99e Initial load duke parents: diff changeset	319 HPROF_UNLOAD_CLASS = 0x03,
a61af66fc99e Initial load duke parents: diff changeset	320 HPROF_FRAME = 0x04,
a61af66fc99e Initial load duke parents: diff changeset	321 HPROF_TRACE = 0x05,
a61af66fc99e Initial load duke parents: diff changeset	322 HPROF_ALLOC_SITES = 0x06,
a61af66fc99e Initial load duke parents: diff changeset	323 HPROF_HEAP_SUMMARY = 0x07,
a61af66fc99e Initial load duke parents: diff changeset	324 HPROF_START_THREAD = 0x0A,
a61af66fc99e Initial load duke parents: diff changeset	325 HPROF_END_THREAD = 0x0B,
a61af66fc99e Initial load duke parents: diff changeset	326 HPROF_HEAP_DUMP = 0x0C,
a61af66fc99e Initial load duke parents: diff changeset	327 HPROF_CPU_SAMPLES = 0x0D,
a61af66fc99e Initial load duke parents: diff changeset	328 HPROF_CONTROL_SETTINGS = 0x0E,
a61af66fc99e Initial load duke parents: diff changeset	329
a61af66fc99e Initial load duke parents: diff changeset	330 // 1.0.2 record types
a61af66fc99e Initial load duke parents: diff changeset	331 HPROF_HEAP_DUMP_SEGMENT = 0x1C,
a61af66fc99e Initial load duke parents: diff changeset	332 HPROF_HEAP_DUMP_END = 0x2C,
a61af66fc99e Initial load duke parents: diff changeset	333
a61af66fc99e Initial load duke parents: diff changeset	334 // field types
a61af66fc99e Initial load duke parents: diff changeset	335 HPROF_ARRAY_OBJECT = 0x01,
a61af66fc99e Initial load duke parents: diff changeset	336 HPROF_NORMAL_OBJECT = 0x02,
a61af66fc99e Initial load duke parents: diff changeset	337 HPROF_BOOLEAN = 0x04,
a61af66fc99e Initial load duke parents: diff changeset	338 HPROF_CHAR = 0x05,
a61af66fc99e Initial load duke parents: diff changeset	339 HPROF_FLOAT = 0x06,
a61af66fc99e Initial load duke parents: diff changeset	340 HPROF_DOUBLE = 0x07,
a61af66fc99e Initial load duke parents: diff changeset	341 HPROF_BYTE = 0x08,
a61af66fc99e Initial load duke parents: diff changeset	342 HPROF_SHORT = 0x09,
a61af66fc99e Initial load duke parents: diff changeset	343 HPROF_INT = 0x0A,
a61af66fc99e Initial load duke parents: diff changeset	344 HPROF_LONG = 0x0B,
a61af66fc99e Initial load duke parents: diff changeset	345
a61af66fc99e Initial load duke parents: diff changeset	346 // data-dump sub-records
a61af66fc99e Initial load duke parents: diff changeset	347 HPROF_GC_ROOT_UNKNOWN = 0xFF,
a61af66fc99e Initial load duke parents: diff changeset	348 HPROF_GC_ROOT_JNI_GLOBAL = 0x01,
a61af66fc99e Initial load duke parents: diff changeset	349 HPROF_GC_ROOT_JNI_LOCAL = 0x02,
a61af66fc99e Initial load duke parents: diff changeset	350 HPROF_GC_ROOT_JAVA_FRAME = 0x03,
a61af66fc99e Initial load duke parents: diff changeset	351 HPROF_GC_ROOT_NATIVE_STACK = 0x04,
a61af66fc99e Initial load duke parents: diff changeset	352 HPROF_GC_ROOT_STICKY_CLASS = 0x05,
a61af66fc99e Initial load duke parents: diff changeset	353 HPROF_GC_ROOT_THREAD_BLOCK = 0x06,
a61af66fc99e Initial load duke parents: diff changeset	354 HPROF_GC_ROOT_MONITOR_USED = 0x07,
a61af66fc99e Initial load duke parents: diff changeset	355 HPROF_GC_ROOT_THREAD_OBJ = 0x08,
a61af66fc99e Initial load duke parents: diff changeset	356 HPROF_GC_CLASS_DUMP = 0x20,
a61af66fc99e Initial load duke parents: diff changeset	357 HPROF_GC_INSTANCE_DUMP = 0x21,
a61af66fc99e Initial load duke parents: diff changeset	358 HPROF_GC_OBJ_ARRAY_DUMP = 0x22,
a61af66fc99e Initial load duke parents: diff changeset	359 HPROF_GC_PRIM_ARRAY_DUMP = 0x23
a61af66fc99e Initial load duke parents: diff changeset	360 } hprofTag;
a61af66fc99e Initial load duke parents: diff changeset	361
a61af66fc99e Initial load duke parents: diff changeset	362 // Default stack trace ID (used for dummy HPROF_TRACE record)
a61af66fc99e Initial load duke parents: diff changeset	363 enum {
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	364 STACK_TRACE_ID = 1,
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	365 INITIAL_CLASS_COUNT = 200
0 a61af66fc99e Initial load duke parents: diff changeset	366 };
a61af66fc99e Initial load duke parents: diff changeset	367
a61af66fc99e Initial load duke parents: diff changeset	368 // Supports I/O operations on a dump file
a61af66fc99e Initial load duke parents: diff changeset	369
a61af66fc99e Initial load duke parents: diff changeset	370 class DumpWriter : public StackObj {
a61af66fc99e Initial load duke parents: diff changeset	371 private:
a61af66fc99e Initial load duke parents: diff changeset	372 enum {
a61af66fc99e Initial load duke parents: diff changeset	373 io_buffer_size = 8*M
a61af66fc99e Initial load duke parents: diff changeset	374 };
a61af66fc99e Initial load duke parents: diff changeset	375
a61af66fc99e Initial load duke parents: diff changeset	376 int _fd; // file descriptor (-1 if dump file not open)
a61af66fc99e Initial load duke parents: diff changeset	377 jlong _bytes_written; // number of byte written to dump file
a61af66fc99e Initial load duke parents: diff changeset	378
a61af66fc99e Initial load duke parents: diff changeset	379 char* _buffer; // internal buffer
a61af66fc99e Initial load duke parents: diff changeset	380 int _size;
a61af66fc99e Initial load duke parents: diff changeset	381 int _pos;
a61af66fc99e Initial load duke parents: diff changeset	382
a61af66fc99e Initial load duke parents: diff changeset	383 char* _error; // error message when I/O fails
a61af66fc99e Initial load duke parents: diff changeset	384
a61af66fc99e Initial load duke parents: diff changeset	385 void set_file_descriptor(int fd) { _fd = fd; }
a61af66fc99e Initial load duke parents: diff changeset	386 int file_descriptor() const { return _fd; }
a61af66fc99e Initial load duke parents: diff changeset	387
a61af66fc99e Initial load duke parents: diff changeset	388 char* buffer() const { return _buffer; }
a61af66fc99e Initial load duke parents: diff changeset	389 int buffer_size() const { return _size; }
a61af66fc99e Initial load duke parents: diff changeset	390 int position() const { return _pos; }
a61af66fc99e Initial load duke parents: diff changeset	391 void set_position(int pos) { _pos = pos; }
a61af66fc99e Initial load duke parents: diff changeset	392
a61af66fc99e Initial load duke parents: diff changeset	393 void set_error(const char* error) { _error = (char*)os::strdup(error); }
a61af66fc99e Initial load duke parents: diff changeset	394
a61af66fc99e Initial load duke parents: diff changeset	395 // all I/O go through this function
a61af66fc99e Initial load duke parents: diff changeset	396 void write_internal(void* s, int len);
a61af66fc99e Initial load duke parents: diff changeset	397
a61af66fc99e Initial load duke parents: diff changeset	398 public:
a61af66fc99e Initial load duke parents: diff changeset	399 DumpWriter(const char* path);
a61af66fc99e Initial load duke parents: diff changeset	400 ~DumpWriter();
a61af66fc99e Initial load duke parents: diff changeset	401
a61af66fc99e Initial load duke parents: diff changeset	402 void close();
a61af66fc99e Initial load duke parents: diff changeset	403 bool is_open() const { return file_descriptor() >= 0; }
a61af66fc99e Initial load duke parents: diff changeset	404 void flush();
a61af66fc99e Initial load duke parents: diff changeset	405
a61af66fc99e Initial load duke parents: diff changeset	406 // total number of bytes written to the disk
a61af66fc99e Initial load duke parents: diff changeset	407 jlong bytes_written() const { return _bytes_written; }
a61af66fc99e Initial load duke parents: diff changeset	408
a61af66fc99e Initial load duke parents: diff changeset	409 // adjust the number of bytes written to disk (used to keep the count
a61af66fc99e Initial load duke parents: diff changeset	410 // of the number of bytes written in case of rewrites)
a61af66fc99e Initial load duke parents: diff changeset	411 void adjust_bytes_written(jlong n) { _bytes_written += n; }
a61af66fc99e Initial load duke parents: diff changeset	412
a61af66fc99e Initial load duke parents: diff changeset	413 // number of (buffered) bytes as yet unwritten to the dump file
a61af66fc99e Initial load duke parents: diff changeset	414 jlong bytes_unwritten() const { return (jlong)position(); }
a61af66fc99e Initial load duke parents: diff changeset	415
a61af66fc99e Initial load duke parents: diff changeset	416 char* error() const { return _error; }
a61af66fc99e Initial load duke parents: diff changeset	417
a61af66fc99e Initial load duke parents: diff changeset	418 jlong current_offset();
a61af66fc99e Initial load duke parents: diff changeset	419 void seek_to_offset(jlong pos);
a61af66fc99e Initial load duke parents: diff changeset	420
a61af66fc99e Initial load duke parents: diff changeset	421 // writer functions
a61af66fc99e Initial load duke parents: diff changeset	422 void write_raw(void* s, int len);
a61af66fc99e Initial load duke parents: diff changeset	423 void write_u1(u1 x) { write_raw((void*)&x, 1); }
a61af66fc99e Initial load duke parents: diff changeset	424 void write_u2(u2 x);
a61af66fc99e Initial load duke parents: diff changeset	425 void write_u4(u4 x);
a61af66fc99e Initial load duke parents: diff changeset	426 void write_u8(u8 x);
a61af66fc99e Initial load duke parents: diff changeset	427 void write_objectID(oop o);
a61af66fc99e Initial load duke parents: diff changeset	428 void write_classID(Klass* k);
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	429 void write_id(u4 x);
0 a61af66fc99e Initial load duke parents: diff changeset	430 };
a61af66fc99e Initial load duke parents: diff changeset	431
a61af66fc99e Initial load duke parents: diff changeset	432 DumpWriter::DumpWriter(const char* path) {
a61af66fc99e Initial load duke parents: diff changeset	433 // try to allocate an I/O buffer of io_buffer_size. If there isn't
a61af66fc99e Initial load duke parents: diff changeset	434 // sufficient memory then reduce size until we can allocate something.
a61af66fc99e Initial load duke parents: diff changeset	435 _size = io_buffer_size;
a61af66fc99e Initial load duke parents: diff changeset	436 do {
a61af66fc99e Initial load duke parents: diff changeset	437 _buffer = (char*)os::malloc(_size);
a61af66fc99e Initial load duke parents: diff changeset	438 if (_buffer == NULL) {
a61af66fc99e Initial load duke parents: diff changeset	439 _size = _size >> 1;
a61af66fc99e Initial load duke parents: diff changeset	440 }
a61af66fc99e Initial load duke parents: diff changeset	441 } while (_buffer == NULL && _size > 0);
a61af66fc99e Initial load duke parents: diff changeset	442 assert((_size > 0 && _buffer != NULL) \|\| (_size == 0 && _buffer == NULL), "sanity check");
a61af66fc99e Initial load duke parents: diff changeset	443 _pos = 0;
a61af66fc99e Initial load duke parents: diff changeset	444 _error = NULL;
a61af66fc99e Initial load duke parents: diff changeset	445 _bytes_written = 0L;
a61af66fc99e Initial load duke parents: diff changeset	446 _fd = os::create_binary_file(path, false); // don't replace existing file
a61af66fc99e Initial load duke parents: diff changeset	447
a61af66fc99e Initial load duke parents: diff changeset	448 // if the open failed we record the error
a61af66fc99e Initial load duke parents: diff changeset	449 if (_fd < 0) {
a61af66fc99e Initial load duke parents: diff changeset	450 _error = (char*)os::strdup(strerror(errno));
a61af66fc99e Initial load duke parents: diff changeset	451 }
a61af66fc99e Initial load duke parents: diff changeset	452 }
a61af66fc99e Initial load duke parents: diff changeset	453
a61af66fc99e Initial load duke parents: diff changeset	454 DumpWriter::~DumpWriter() {
a61af66fc99e Initial load duke parents: diff changeset	455 // flush and close dump file
2143 17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	456 if (is_open()) {
0 a61af66fc99e Initial load duke parents: diff changeset	457 close();
a61af66fc99e Initial load duke parents: diff changeset	458 }
a61af66fc99e Initial load duke parents: diff changeset	459 if (_buffer != NULL) os::free(_buffer);
a61af66fc99e Initial load duke parents: diff changeset	460 if (_error != NULL) os::free(_error);
a61af66fc99e Initial load duke parents: diff changeset	461 }
a61af66fc99e Initial load duke parents: diff changeset	462
a61af66fc99e Initial load duke parents: diff changeset	463 // closes dump file (if open)
a61af66fc99e Initial load duke parents: diff changeset	464 void DumpWriter::close() {
a61af66fc99e Initial load duke parents: diff changeset	465 // flush and close dump file
2143 17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	466 if (is_open()) {
0 a61af66fc99e Initial load duke parents: diff changeset	467 flush();
a61af66fc99e Initial load duke parents: diff changeset	468 ::close(file_descriptor());
2143 17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	469 set_file_descriptor(-1);
0 a61af66fc99e Initial load duke parents: diff changeset	470 }
a61af66fc99e Initial load duke parents: diff changeset	471 }
a61af66fc99e Initial load duke parents: diff changeset	472
a61af66fc99e Initial load duke parents: diff changeset	473 // write directly to the file
a61af66fc99e Initial load duke parents: diff changeset	474 void DumpWriter::write_internal(void* s, int len) {
a61af66fc99e Initial load duke parents: diff changeset	475 if (is_open()) {
a61af66fc99e Initial load duke parents: diff changeset	476 int n = ::write(file_descriptor(), s, len);
a61af66fc99e Initial load duke parents: diff changeset	477 if (n > 0) {
a61af66fc99e Initial load duke parents: diff changeset	478 _bytes_written += n;
a61af66fc99e Initial load duke parents: diff changeset	479 }
a61af66fc99e Initial load duke parents: diff changeset	480 if (n != len) {
a61af66fc99e Initial load duke parents: diff changeset	481 if (n < 0) {
a61af66fc99e Initial load duke parents: diff changeset	482 set_error(strerror(errno));
a61af66fc99e Initial load duke parents: diff changeset	483 } else {
a61af66fc99e Initial load duke parents: diff changeset	484 set_error("file size limit");
a61af66fc99e Initial load duke parents: diff changeset	485 }
a61af66fc99e Initial load duke parents: diff changeset	486 ::close(file_descriptor());
a61af66fc99e Initial load duke parents: diff changeset	487 set_file_descriptor(-1);
a61af66fc99e Initial load duke parents: diff changeset	488 }
a61af66fc99e Initial load duke parents: diff changeset	489 }
a61af66fc99e Initial load duke parents: diff changeset	490 }
a61af66fc99e Initial load duke parents: diff changeset	491
a61af66fc99e Initial load duke parents: diff changeset	492 // write raw bytes
a61af66fc99e Initial load duke parents: diff changeset	493 void DumpWriter::write_raw(void* s, int len) {
a61af66fc99e Initial load duke parents: diff changeset	494 if (is_open()) {
a61af66fc99e Initial load duke parents: diff changeset	495 // flush buffer to make toom
a61af66fc99e Initial load duke parents: diff changeset	496 if ((position()+ len) >= buffer_size()) {
a61af66fc99e Initial load duke parents: diff changeset	497 flush();
a61af66fc99e Initial load duke parents: diff changeset	498 }
a61af66fc99e Initial load duke parents: diff changeset	499
a61af66fc99e Initial load duke parents: diff changeset	500 // buffer not available or too big to buffer it
a61af66fc99e Initial load duke parents: diff changeset	501 if ((buffer() == NULL) \|\| (len >= buffer_size())) {
a61af66fc99e Initial load duke parents: diff changeset	502 write_internal(s, len);
a61af66fc99e Initial load duke parents: diff changeset	503 } else {
a61af66fc99e Initial load duke parents: diff changeset	504 // Should optimize this for u1/u2/u4/u8 sizes.
a61af66fc99e Initial load duke parents: diff changeset	505 memcpy(buffer() + position(), s, len);
a61af66fc99e Initial load duke parents: diff changeset	506 set_position(position() + len);
a61af66fc99e Initial load duke parents: diff changeset	507 }
a61af66fc99e Initial load duke parents: diff changeset	508 }
a61af66fc99e Initial load duke parents: diff changeset	509 }
a61af66fc99e Initial load duke parents: diff changeset	510
a61af66fc99e Initial load duke parents: diff changeset	511 // flush any buffered bytes to the file
a61af66fc99e Initial load duke parents: diff changeset	512 void DumpWriter::flush() {
a61af66fc99e Initial load duke parents: diff changeset	513 if (is_open() && position() > 0) {
a61af66fc99e Initial load duke parents: diff changeset	514 write_internal(buffer(), position());
a61af66fc99e Initial load duke parents: diff changeset	515 set_position(0);
a61af66fc99e Initial load duke parents: diff changeset	516 }
a61af66fc99e Initial load duke parents: diff changeset	517 }
a61af66fc99e Initial load duke parents: diff changeset	518
a61af66fc99e Initial load duke parents: diff changeset	519
a61af66fc99e Initial load duke parents: diff changeset	520 jlong DumpWriter::current_offset() {
a61af66fc99e Initial load duke parents: diff changeset	521 if (is_open()) {
a61af66fc99e Initial load duke parents: diff changeset	522 // the offset is the file offset plus whatever we have buffered
a61af66fc99e Initial load duke parents: diff changeset	523 jlong offset = os::current_file_offset(file_descriptor());
a61af66fc99e Initial load duke parents: diff changeset	524 assert(offset >= 0, "lseek failed");
a61af66fc99e Initial load duke parents: diff changeset	525 return offset + (jlong)position();
a61af66fc99e Initial load duke parents: diff changeset	526 } else {
a61af66fc99e Initial load duke parents: diff changeset	527 return (jlong)-1;
a61af66fc99e Initial load duke parents: diff changeset	528 }
a61af66fc99e Initial load duke parents: diff changeset	529 }
a61af66fc99e Initial load duke parents: diff changeset	530
a61af66fc99e Initial load duke parents: diff changeset	531 void DumpWriter::seek_to_offset(jlong off) {
a61af66fc99e Initial load duke parents: diff changeset	532 assert(off >= 0, "bad offset");
a61af66fc99e Initial load duke parents: diff changeset	533
a61af66fc99e Initial load duke parents: diff changeset	534 // need to flush before seeking
a61af66fc99e Initial load duke parents: diff changeset	535 flush();
a61af66fc99e Initial load duke parents: diff changeset	536
a61af66fc99e Initial load duke parents: diff changeset	537 // may be closed due to I/O error
a61af66fc99e Initial load duke parents: diff changeset	538 if (is_open()) {
a61af66fc99e Initial load duke parents: diff changeset	539 jlong n = os::seek_to_file_offset(file_descriptor(), off);
a61af66fc99e Initial load duke parents: diff changeset	540 assert(n >= 0, "lseek failed");
a61af66fc99e Initial load duke parents: diff changeset	541 }
a61af66fc99e Initial load duke parents: diff changeset	542 }
a61af66fc99e Initial load duke parents: diff changeset	543
a61af66fc99e Initial load duke parents: diff changeset	544 void DumpWriter::write_u2(u2 x) {
a61af66fc99e Initial load duke parents: diff changeset	545 u2 v;
a61af66fc99e Initial load duke parents: diff changeset	546 Bytes::put_Java_u2((address)&v, x);
a61af66fc99e Initial load duke parents: diff changeset	547 write_raw((void*)&v, 2);
a61af66fc99e Initial load duke parents: diff changeset	548 }
a61af66fc99e Initial load duke parents: diff changeset	549
a61af66fc99e Initial load duke parents: diff changeset	550 void DumpWriter::write_u4(u4 x) {
a61af66fc99e Initial load duke parents: diff changeset	551 u4 v;
a61af66fc99e Initial load duke parents: diff changeset	552 Bytes::put_Java_u4((address)&v, x);
a61af66fc99e Initial load duke parents: diff changeset	553 write_raw((void*)&v, 4);
a61af66fc99e Initial load duke parents: diff changeset	554 }
a61af66fc99e Initial load duke parents: diff changeset	555
a61af66fc99e Initial load duke parents: diff changeset	556 void DumpWriter::write_u8(u8 x) {
a61af66fc99e Initial load duke parents: diff changeset	557 u8 v;
a61af66fc99e Initial load duke parents: diff changeset	558 Bytes::put_Java_u8((address)&v, x);
a61af66fc99e Initial load duke parents: diff changeset	559 write_raw((void*)&v, 8);
a61af66fc99e Initial load duke parents: diff changeset	560 }
a61af66fc99e Initial load duke parents: diff changeset	561
a61af66fc99e Initial load duke parents: diff changeset	562 void DumpWriter::write_objectID(oop o) {
a61af66fc99e Initial load duke parents: diff changeset	563 address a = (address)((uintptr_t)o);
a61af66fc99e Initial load duke parents: diff changeset	564 #ifdef _LP64
a61af66fc99e Initial load duke parents: diff changeset	565 write_u8((u8)a);
a61af66fc99e Initial load duke parents: diff changeset	566 #else
a61af66fc99e Initial load duke parents: diff changeset	567 write_u4((u4)a);
a61af66fc99e Initial load duke parents: diff changeset	568 #endif
a61af66fc99e Initial load duke parents: diff changeset	569 }
a61af66fc99e Initial load duke parents: diff changeset	570
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	571 void DumpWriter::write_id(u4 x) {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	572 #ifdef _LP64
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	573 write_u8((u8) x);
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	574 #else
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	575 write_u4(x);
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	576 #endif
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	577 }
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	578
0 a61af66fc99e Initial load duke parents: diff changeset	579 // We use java mirror as the class ID
a61af66fc99e Initial load duke parents: diff changeset	580 void DumpWriter::write_classID(Klass* k) {
a61af66fc99e Initial load duke parents: diff changeset	581 write_objectID(k->java_mirror());
a61af66fc99e Initial load duke parents: diff changeset	582 }
a61af66fc99e Initial load duke parents: diff changeset	583
a61af66fc99e Initial load duke parents: diff changeset	584
a61af66fc99e Initial load duke parents: diff changeset	585
a61af66fc99e Initial load duke parents: diff changeset	586 // Support class with a collection of functions used when dumping the heap
a61af66fc99e Initial load duke parents: diff changeset	587
a61af66fc99e Initial load duke parents: diff changeset	588 class DumperSupport : AllStatic {
a61af66fc99e Initial load duke parents: diff changeset	589 public:
a61af66fc99e Initial load duke parents: diff changeset	590
a61af66fc99e Initial load duke parents: diff changeset	591 // write a header of the given type
a61af66fc99e Initial load duke parents: diff changeset	592 static void write_header(DumpWriter* writer, hprofTag tag, u4 len);
a61af66fc99e Initial load duke parents: diff changeset	593
a61af66fc99e Initial load duke parents: diff changeset	594 // returns hprof tag for the given type signature
a61af66fc99e Initial load duke parents: diff changeset	595 static hprofTag sig2tag(symbolOop sig);
a61af66fc99e Initial load duke parents: diff changeset	596 // returns hprof tag for the given basic type
a61af66fc99e Initial load duke parents: diff changeset	597 static hprofTag type2tag(BasicType type);
a61af66fc99e Initial load duke parents: diff changeset	598
a61af66fc99e Initial load duke parents: diff changeset	599 // returns the size of the instance of the given class
a61af66fc99e Initial load duke parents: diff changeset	600 static u4 instance_size(klassOop k);
a61af66fc99e Initial load duke parents: diff changeset	601
a61af66fc99e Initial load duke parents: diff changeset	602 // dump a jfloat
a61af66fc99e Initial load duke parents: diff changeset	603 static void dump_float(DumpWriter* writer, jfloat f);
a61af66fc99e Initial load duke parents: diff changeset	604 // dump a jdouble
a61af66fc99e Initial load duke parents: diff changeset	605 static void dump_double(DumpWriter* writer, jdouble d);
a61af66fc99e Initial load duke parents: diff changeset	606 // dumps the raw value of the given field
a61af66fc99e Initial load duke parents: diff changeset	607 static void dump_field_value(DumpWriter* writer, char type, address addr);
a61af66fc99e Initial load duke parents: diff changeset	608 // dumps static fields of the given class
a61af66fc99e Initial load duke parents: diff changeset	609 static void dump_static_fields(DumpWriter* writer, klassOop k);
a61af66fc99e Initial load duke parents: diff changeset	610 // dump the raw values of the instance fields of the given object
a61af66fc99e Initial load duke parents: diff changeset	611 static void dump_instance_fields(DumpWriter* writer, oop o);
a61af66fc99e Initial load duke parents: diff changeset	612 // dumps the definition of the instance fields for a given class
a61af66fc99e Initial load duke parents: diff changeset	613 static void dump_instance_field_descriptors(DumpWriter* writer, klassOop k);
a61af66fc99e Initial load duke parents: diff changeset	614 // creates HPROF_GC_INSTANCE_DUMP record for the given object
a61af66fc99e Initial load duke parents: diff changeset	615 static void dump_instance(DumpWriter* writer, oop o);
a61af66fc99e Initial load duke parents: diff changeset	616 // creates HPROF_GC_CLASS_DUMP record for the given class and each of its
a61af66fc99e Initial load duke parents: diff changeset	617 // array classes
a61af66fc99e Initial load duke parents: diff changeset	618 static void dump_class_and_array_classes(DumpWriter* writer, klassOop k);
a61af66fc99e Initial load duke parents: diff changeset	619 // creates HPROF_GC_CLASS_DUMP record for a given primitive array
a61af66fc99e Initial load duke parents: diff changeset	620 // class (and each multi-dimensional array class too)
a61af66fc99e Initial load duke parents: diff changeset	621 static void dump_basic_type_array_class(DumpWriter* writer, klassOop k);
a61af66fc99e Initial load duke parents: diff changeset	622
a61af66fc99e Initial load duke parents: diff changeset	623 // creates HPROF_GC_OBJ_ARRAY_DUMP record for the given object array
a61af66fc99e Initial load duke parents: diff changeset	624 static void dump_object_array(DumpWriter* writer, objArrayOop array);
a61af66fc99e Initial load duke parents: diff changeset	625 // creates HPROF_GC_PRIM_ARRAY_DUMP record for the given type array
a61af66fc99e Initial load duke parents: diff changeset	626 static void dump_prim_array(DumpWriter* writer, typeArrayOop array);
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	627 // create HPROF_FRAME record for the given method and bci
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	628 static void dump_stack_frame(DumpWriter* writer, int frame_serial_num, int class_serial_num, methodOop m, int bci);
0 a61af66fc99e Initial load duke parents: diff changeset	629 };
a61af66fc99e Initial load duke parents: diff changeset	630
a61af66fc99e Initial load duke parents: diff changeset	631 // write a header of the given type
a61af66fc99e Initial load duke parents: diff changeset	632 void DumperSupport:: write_header(DumpWriter* writer, hprofTag tag, u4 len) {
a61af66fc99e Initial load duke parents: diff changeset	633 writer->write_u1((u1)tag);
a61af66fc99e Initial load duke parents: diff changeset	634 writer->write_u4(0); // current ticks
a61af66fc99e Initial load duke parents: diff changeset	635 writer->write_u4(len);
a61af66fc99e Initial load duke parents: diff changeset	636 }
a61af66fc99e Initial load duke parents: diff changeset	637
a61af66fc99e Initial load duke parents: diff changeset	638 // returns hprof tag for the given type signature
a61af66fc99e Initial load duke parents: diff changeset	639 hprofTag DumperSupport::sig2tag(symbolOop sig) {
a61af66fc99e Initial load duke parents: diff changeset	640 switch (sig->byte_at(0)) {
a61af66fc99e Initial load duke parents: diff changeset	641 case JVM_SIGNATURE_CLASS : return HPROF_NORMAL_OBJECT;
a61af66fc99e Initial load duke parents: diff changeset	642 case JVM_SIGNATURE_ARRAY : return HPROF_NORMAL_OBJECT;
a61af66fc99e Initial load duke parents: diff changeset	643 case JVM_SIGNATURE_BYTE : return HPROF_BYTE;
a61af66fc99e Initial load duke parents: diff changeset	644 case JVM_SIGNATURE_CHAR : return HPROF_CHAR;
a61af66fc99e Initial load duke parents: diff changeset	645 case JVM_SIGNATURE_FLOAT : return HPROF_FLOAT;
a61af66fc99e Initial load duke parents: diff changeset	646 case JVM_SIGNATURE_DOUBLE : return HPROF_DOUBLE;
a61af66fc99e Initial load duke parents: diff changeset	647 case JVM_SIGNATURE_INT : return HPROF_INT;
a61af66fc99e Initial load duke parents: diff changeset	648 case JVM_SIGNATURE_LONG : return HPROF_LONG;
a61af66fc99e Initial load duke parents: diff changeset	649 case JVM_SIGNATURE_SHORT : return HPROF_SHORT;
a61af66fc99e Initial load duke parents: diff changeset	650 case JVM_SIGNATURE_BOOLEAN : return HPROF_BOOLEAN;
a61af66fc99e Initial load duke parents: diff changeset	651 default : ShouldNotReachHere(); /* to shut up compiler */ return HPROF_BYTE;
a61af66fc99e Initial load duke parents: diff changeset	652 }
a61af66fc99e Initial load duke parents: diff changeset	653 }
a61af66fc99e Initial load duke parents: diff changeset	654
a61af66fc99e Initial load duke parents: diff changeset	655 hprofTag DumperSupport::type2tag(BasicType type) {
a61af66fc99e Initial load duke parents: diff changeset	656 switch (type) {
a61af66fc99e Initial load duke parents: diff changeset	657 case T_BYTE : return HPROF_BYTE;
a61af66fc99e Initial load duke parents: diff changeset	658 case T_CHAR : return HPROF_CHAR;
a61af66fc99e Initial load duke parents: diff changeset	659 case T_FLOAT : return HPROF_FLOAT;
a61af66fc99e Initial load duke parents: diff changeset	660 case T_DOUBLE : return HPROF_DOUBLE;
a61af66fc99e Initial load duke parents: diff changeset	661 case T_INT : return HPROF_INT;
a61af66fc99e Initial load duke parents: diff changeset	662 case T_LONG : return HPROF_LONG;
a61af66fc99e Initial load duke parents: diff changeset	663 case T_SHORT : return HPROF_SHORT;
a61af66fc99e Initial load duke parents: diff changeset	664 case T_BOOLEAN : return HPROF_BOOLEAN;
a61af66fc99e Initial load duke parents: diff changeset	665 default : ShouldNotReachHere(); /* to shut up compiler */ return HPROF_BYTE;
a61af66fc99e Initial load duke parents: diff changeset	666 }
a61af66fc99e Initial load duke parents: diff changeset	667 }
a61af66fc99e Initial load duke parents: diff changeset	668
a61af66fc99e Initial load duke parents: diff changeset	669 // dump a jfloat
a61af66fc99e Initial load duke parents: diff changeset	670 void DumperSupport::dump_float(DumpWriter* writer, jfloat f) {
a61af66fc99e Initial load duke parents: diff changeset	671 if (g_isnan(f)) {
a61af66fc99e Initial load duke parents: diff changeset	672 writer->write_u4(0x7fc00000); // collapsing NaNs
a61af66fc99e Initial load duke parents: diff changeset	673 } else {
a61af66fc99e Initial load duke parents: diff changeset	674 union {
a61af66fc99e Initial load duke parents: diff changeset	675 int i;
a61af66fc99e Initial load duke parents: diff changeset	676 float f;
a61af66fc99e Initial load duke parents: diff changeset	677 } u;
a61af66fc99e Initial load duke parents: diff changeset	678 u.f = (float)f;
a61af66fc99e Initial load duke parents: diff changeset	679 writer->write_u4((u4)u.i);
a61af66fc99e Initial load duke parents: diff changeset	680 }
a61af66fc99e Initial load duke parents: diff changeset	681 }
a61af66fc99e Initial load duke parents: diff changeset	682
a61af66fc99e Initial load duke parents: diff changeset	683 // dump a jdouble
a61af66fc99e Initial load duke parents: diff changeset	684 void DumperSupport::dump_double(DumpWriter* writer, jdouble d) {
a61af66fc99e Initial load duke parents: diff changeset	685 union {
a61af66fc99e Initial load duke parents: diff changeset	686 jlong l;
a61af66fc99e Initial load duke parents: diff changeset	687 double d;
a61af66fc99e Initial load duke parents: diff changeset	688 } u;
a61af66fc99e Initial load duke parents: diff changeset	689 if (g_isnan(d)) { // collapsing NaNs
a61af66fc99e Initial load duke parents: diff changeset	690 u.l = (jlong)(0x7ff80000);
a61af66fc99e Initial load duke parents: diff changeset	691 u.l = (u.l << 32);
a61af66fc99e Initial load duke parents: diff changeset	692 } else {
a61af66fc99e Initial load duke parents: diff changeset	693 u.d = (double)d;
a61af66fc99e Initial load duke parents: diff changeset	694 }
a61af66fc99e Initial load duke parents: diff changeset	695 writer->write_u8((u8)u.l);
a61af66fc99e Initial load duke parents: diff changeset	696 }
a61af66fc99e Initial load duke parents: diff changeset	697
a61af66fc99e Initial load duke parents: diff changeset	698 // dumps the raw value of the given field
a61af66fc99e Initial load duke parents: diff changeset	699 void DumperSupport::dump_field_value(DumpWriter* writer, char type, address addr) {
a61af66fc99e Initial load duke parents: diff changeset	700 switch (type) {
a61af66fc99e Initial load duke parents: diff changeset	701 case JVM_SIGNATURE_CLASS :
a61af66fc99e Initial load duke parents: diff changeset	702 case JVM_SIGNATURE_ARRAY : {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 29 diff changeset	703 oop o;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 29 diff changeset	704 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 29 diff changeset	705 o = oopDesc::load_decode_heap_oop((narrowOop*)addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 29 diff changeset	706 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 29 diff changeset	707 o = oopDesc::load_decode_heap_oop((oop*)addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 29 diff changeset	708 }
0 a61af66fc99e Initial load duke parents: diff changeset	709
a61af66fc99e Initial load duke parents: diff changeset	710 // reflection and sun.misc.Unsafe classes may have a reference to a
a61af66fc99e Initial load duke parents: diff changeset	711 // klassOop so filter it out.
a61af66fc99e Initial load duke parents: diff changeset	712 if (o != NULL && o->is_klass()) {
a61af66fc99e Initial load duke parents: diff changeset	713 o = NULL;
a61af66fc99e Initial load duke parents: diff changeset	714 }
a61af66fc99e Initial load duke parents: diff changeset	715
a61af66fc99e Initial load duke parents: diff changeset	716 // FIXME: When sharing is enabled we don't emit field references to objects
a61af66fc99e Initial load duke parents: diff changeset	717 // in shared spaces. We can remove this once we write records for the classes
a61af66fc99e Initial load duke parents: diff changeset	718 // and strings that are shared.
a61af66fc99e Initial load duke parents: diff changeset	719 if (o != NULL && o->is_shared()) {
a61af66fc99e Initial load duke parents: diff changeset	720 o = NULL;
a61af66fc99e Initial load duke parents: diff changeset	721 }
a61af66fc99e Initial load duke parents: diff changeset	722 writer->write_objectID(o);
a61af66fc99e Initial load duke parents: diff changeset	723 break;
a61af66fc99e Initial load duke parents: diff changeset	724 }
a61af66fc99e Initial load duke parents: diff changeset	725 case JVM_SIGNATURE_BYTE : {
a61af66fc99e Initial load duke parents: diff changeset	726 jbyte* b = (jbyte*)addr;
a61af66fc99e Initial load duke parents: diff changeset	727 writer->write_u1((u1)*b);
a61af66fc99e Initial load duke parents: diff changeset	728 break;
a61af66fc99e Initial load duke parents: diff changeset	729 }
a61af66fc99e Initial load duke parents: diff changeset	730 case JVM_SIGNATURE_CHAR : {
a61af66fc99e Initial load duke parents: diff changeset	731 jchar* c = (jchar*)addr;
a61af66fc99e Initial load duke parents: diff changeset	732 writer->write_u2((u2)*c);
a61af66fc99e Initial load duke parents: diff changeset	733 break;
a61af66fc99e Initial load duke parents: diff changeset	734 }
a61af66fc99e Initial load duke parents: diff changeset	735 case JVM_SIGNATURE_SHORT : {
a61af66fc99e Initial load duke parents: diff changeset	736 jshort* s = (jshort*)addr;
a61af66fc99e Initial load duke parents: diff changeset	737 writer->write_u2((u2)*s);
a61af66fc99e Initial load duke parents: diff changeset	738 break;
a61af66fc99e Initial load duke parents: diff changeset	739 }
a61af66fc99e Initial load duke parents: diff changeset	740 case JVM_SIGNATURE_FLOAT : {
a61af66fc99e Initial load duke parents: diff changeset	741 jfloat* f = (jfloat*)addr;
a61af66fc99e Initial load duke parents: diff changeset	742 dump_float(writer, *f);
a61af66fc99e Initial load duke parents: diff changeset	743 break;
a61af66fc99e Initial load duke parents: diff changeset	744 }
a61af66fc99e Initial load duke parents: diff changeset	745 case JVM_SIGNATURE_DOUBLE : {
a61af66fc99e Initial load duke parents: diff changeset	746 jdouble* f = (jdouble*)addr;
a61af66fc99e Initial load duke parents: diff changeset	747 dump_double(writer, *f);
a61af66fc99e Initial load duke parents: diff changeset	748 break;
a61af66fc99e Initial load duke parents: diff changeset	749 }
a61af66fc99e Initial load duke parents: diff changeset	750 case JVM_SIGNATURE_INT : {
a61af66fc99e Initial load duke parents: diff changeset	751 jint* i = (jint*)addr;
a61af66fc99e Initial load duke parents: diff changeset	752 writer->write_u4((u4)*i);
a61af66fc99e Initial load duke parents: diff changeset	753 break;
a61af66fc99e Initial load duke parents: diff changeset	754 }
a61af66fc99e Initial load duke parents: diff changeset	755 case JVM_SIGNATURE_LONG : {
a61af66fc99e Initial load duke parents: diff changeset	756 jlong* l = (jlong*)addr;
a61af66fc99e Initial load duke parents: diff changeset	757 writer->write_u8((u8)*l);
a61af66fc99e Initial load duke parents: diff changeset	758 break;
a61af66fc99e Initial load duke parents: diff changeset	759 }
a61af66fc99e Initial load duke parents: diff changeset	760 case JVM_SIGNATURE_BOOLEAN : {
a61af66fc99e Initial load duke parents: diff changeset	761 jboolean* b = (jboolean*)addr;
a61af66fc99e Initial load duke parents: diff changeset	762 writer->write_u1((u1)*b);
a61af66fc99e Initial load duke parents: diff changeset	763 break;
a61af66fc99e Initial load duke parents: diff changeset	764 }
a61af66fc99e Initial load duke parents: diff changeset	765 default : ShouldNotReachHere();
a61af66fc99e Initial load duke parents: diff changeset	766 }
a61af66fc99e Initial load duke parents: diff changeset	767 }
a61af66fc99e Initial load duke parents: diff changeset	768
a61af66fc99e Initial load duke parents: diff changeset	769 // returns the size of the instance of the given class
a61af66fc99e Initial load duke parents: diff changeset	770 u4 DumperSupport::instance_size(klassOop k) {
a61af66fc99e Initial load duke parents: diff changeset	771 HandleMark hm;
a61af66fc99e Initial load duke parents: diff changeset	772 instanceKlassHandle ikh = instanceKlassHandle(Thread::current(), k);
a61af66fc99e Initial load duke parents: diff changeset	773
a61af66fc99e Initial load duke parents: diff changeset	774 int size = 0;
a61af66fc99e Initial load duke parents: diff changeset	775
a61af66fc99e Initial load duke parents: diff changeset	776 for (FieldStream fld(ikh, false, false); !fld.eos(); fld.next()) {
a61af66fc99e Initial load duke parents: diff changeset	777 if (!fld.access_flags().is_static()) {
a61af66fc99e Initial load duke parents: diff changeset	778 symbolOop sig = fld.signature();
a61af66fc99e Initial load duke parents: diff changeset	779 switch (sig->byte_at(0)) {
a61af66fc99e Initial load duke parents: diff changeset	780 case JVM_SIGNATURE_CLASS :
a61af66fc99e Initial load duke parents: diff changeset	781 case JVM_SIGNATURE_ARRAY : size += oopSize; break;
a61af66fc99e Initial load duke parents: diff changeset	782
a61af66fc99e Initial load duke parents: diff changeset	783 case JVM_SIGNATURE_BYTE :
a61af66fc99e Initial load duke parents: diff changeset	784 case JVM_SIGNATURE_BOOLEAN : size += 1; break;
a61af66fc99e Initial load duke parents: diff changeset	785
a61af66fc99e Initial load duke parents: diff changeset	786 case JVM_SIGNATURE_CHAR :
a61af66fc99e Initial load duke parents: diff changeset	787 case JVM_SIGNATURE_SHORT : size += 2; break;
a61af66fc99e Initial load duke parents: diff changeset	788
a61af66fc99e Initial load duke parents: diff changeset	789 case JVM_SIGNATURE_INT :
a61af66fc99e Initial load duke parents: diff changeset	790 case JVM_SIGNATURE_FLOAT : size += 4; break;
a61af66fc99e Initial load duke parents: diff changeset	791
a61af66fc99e Initial load duke parents: diff changeset	792 case JVM_SIGNATURE_LONG :
a61af66fc99e Initial load duke parents: diff changeset	793 case JVM_SIGNATURE_DOUBLE : size += 8; break;
a61af66fc99e Initial load duke parents: diff changeset	794
a61af66fc99e Initial load duke parents: diff changeset	795 default : ShouldNotReachHere();
a61af66fc99e Initial load duke parents: diff changeset	796 }
a61af66fc99e Initial load duke parents: diff changeset	797 }
a61af66fc99e Initial load duke parents: diff changeset	798 }
a61af66fc99e Initial load duke parents: diff changeset	799 return (u4)size;
a61af66fc99e Initial load duke parents: diff changeset	800 }
a61af66fc99e Initial load duke parents: diff changeset	801
a61af66fc99e Initial load duke parents: diff changeset	802 // dumps static fields of the given class
a61af66fc99e Initial load duke parents: diff changeset	803 void DumperSupport::dump_static_fields(DumpWriter* writer, klassOop k) {
a61af66fc99e Initial load duke parents: diff changeset	804 HandleMark hm;
a61af66fc99e Initial load duke parents: diff changeset	805 instanceKlassHandle ikh = instanceKlassHandle(Thread::current(), k);
a61af66fc99e Initial load duke parents: diff changeset	806
a61af66fc99e Initial load duke parents: diff changeset	807 // pass 1 - count the static fields
a61af66fc99e Initial load duke parents: diff changeset	808 u2 field_count = 0;
a61af66fc99e Initial load duke parents: diff changeset	809 for (FieldStream fldc(ikh, true, true); !fldc.eos(); fldc.next()) {
a61af66fc99e Initial load duke parents: diff changeset	810 if (fldc.access_flags().is_static()) field_count++;
a61af66fc99e Initial load duke parents: diff changeset	811 }
a61af66fc99e Initial load duke parents: diff changeset	812
a61af66fc99e Initial load duke parents: diff changeset	813 writer->write_u2(field_count);
a61af66fc99e Initial load duke parents: diff changeset	814
a61af66fc99e Initial load duke parents: diff changeset	815 // pass 2 - dump the field descriptors and raw values
a61af66fc99e Initial load duke parents: diff changeset	816 for (FieldStream fld(ikh, true, true); !fld.eos(); fld.next()) {
a61af66fc99e Initial load duke parents: diff changeset	817 if (fld.access_flags().is_static()) {
a61af66fc99e Initial load duke parents: diff changeset	818 symbolOop sig = fld.signature();
a61af66fc99e Initial load duke parents: diff changeset	819
a61af66fc99e Initial load duke parents: diff changeset	820 writer->write_objectID(fld.name()); // name
a61af66fc99e Initial load duke parents: diff changeset	821 writer->write_u1(sig2tag(sig)); // type
a61af66fc99e Initial load duke parents: diff changeset	822
a61af66fc99e Initial load duke parents: diff changeset	823 // value
a61af66fc99e Initial load duke parents: diff changeset	824 int offset = fld.offset();
a61af66fc99e Initial load duke parents: diff changeset	825 address addr = (address)k + offset;
a61af66fc99e Initial load duke parents: diff changeset	826
a61af66fc99e Initial load duke parents: diff changeset	827 dump_field_value(writer, sig->byte_at(0), addr);
a61af66fc99e Initial load duke parents: diff changeset	828 }
a61af66fc99e Initial load duke parents: diff changeset	829 }
a61af66fc99e Initial load duke parents: diff changeset	830 }
a61af66fc99e Initial load duke parents: diff changeset	831
a61af66fc99e Initial load duke parents: diff changeset	832 // dump the raw values of the instance fields of the given object
a61af66fc99e Initial load duke parents: diff changeset	833 void DumperSupport::dump_instance_fields(DumpWriter* writer, oop o) {
a61af66fc99e Initial load duke parents: diff changeset	834 HandleMark hm;
a61af66fc99e Initial load duke parents: diff changeset	835 instanceKlassHandle ikh = instanceKlassHandle(Thread::current(), o->klass());
a61af66fc99e Initial load duke parents: diff changeset	836
a61af66fc99e Initial load duke parents: diff changeset	837 for (FieldStream fld(ikh, false, false); !fld.eos(); fld.next()) {
a61af66fc99e Initial load duke parents: diff changeset	838 if (!fld.access_flags().is_static()) {
a61af66fc99e Initial load duke parents: diff changeset	839 symbolOop sig = fld.signature();
a61af66fc99e Initial load duke parents: diff changeset	840 address addr = (address)o + fld.offset();
a61af66fc99e Initial load duke parents: diff changeset	841
a61af66fc99e Initial load duke parents: diff changeset	842 dump_field_value(writer, sig->byte_at(0), addr);
a61af66fc99e Initial load duke parents: diff changeset	843 }
a61af66fc99e Initial load duke parents: diff changeset	844 }
a61af66fc99e Initial load duke parents: diff changeset	845 }
a61af66fc99e Initial load duke parents: diff changeset	846
a61af66fc99e Initial load duke parents: diff changeset	847 // dumps the definition of the instance fields for a given class
a61af66fc99e Initial load duke parents: diff changeset	848 void DumperSupport::dump_instance_field_descriptors(DumpWriter* writer, klassOop k) {
a61af66fc99e Initial load duke parents: diff changeset	849 HandleMark hm;
a61af66fc99e Initial load duke parents: diff changeset	850 instanceKlassHandle ikh = instanceKlassHandle(Thread::current(), k);
a61af66fc99e Initial load duke parents: diff changeset	851
a61af66fc99e Initial load duke parents: diff changeset	852 // pass 1 - count the instance fields
a61af66fc99e Initial load duke parents: diff changeset	853 u2 field_count = 0;
a61af66fc99e Initial load duke parents: diff changeset	854 for (FieldStream fldc(ikh, true, true); !fldc.eos(); fldc.next()) {
a61af66fc99e Initial load duke parents: diff changeset	855 if (!fldc.access_flags().is_static()) field_count++;
a61af66fc99e Initial load duke parents: diff changeset	856 }
a61af66fc99e Initial load duke parents: diff changeset	857
a61af66fc99e Initial load duke parents: diff changeset	858 writer->write_u2(field_count);
a61af66fc99e Initial load duke parents: diff changeset	859
a61af66fc99e Initial load duke parents: diff changeset	860 // pass 2 - dump the field descriptors
a61af66fc99e Initial load duke parents: diff changeset	861 for (FieldStream fld(ikh, true, true); !fld.eos(); fld.next()) {
a61af66fc99e Initial load duke parents: diff changeset	862 if (!fld.access_flags().is_static()) {
a61af66fc99e Initial load duke parents: diff changeset	863 symbolOop sig = fld.signature();
a61af66fc99e Initial load duke parents: diff changeset	864
a61af66fc99e Initial load duke parents: diff changeset	865 writer->write_objectID(fld.name()); // name
a61af66fc99e Initial load duke parents: diff changeset	866 writer->write_u1(sig2tag(sig)); // type
a61af66fc99e Initial load duke parents: diff changeset	867 }
a61af66fc99e Initial load duke parents: diff changeset	868 }
a61af66fc99e Initial load duke parents: diff changeset	869 }
a61af66fc99e Initial load duke parents: diff changeset	870
a61af66fc99e Initial load duke parents: diff changeset	871 // creates HPROF_GC_INSTANCE_DUMP record for the given object
a61af66fc99e Initial load duke parents: diff changeset	872 void DumperSupport::dump_instance(DumpWriter* writer, oop o) {
a61af66fc99e Initial load duke parents: diff changeset	873 klassOop k = o->klass();
a61af66fc99e Initial load duke parents: diff changeset	874
a61af66fc99e Initial load duke parents: diff changeset	875 writer->write_u1(HPROF_GC_INSTANCE_DUMP);
a61af66fc99e Initial load duke parents: diff changeset	876 writer->write_objectID(o);
a61af66fc99e Initial load duke parents: diff changeset	877 writer->write_u4(STACK_TRACE_ID);
a61af66fc99e Initial load duke parents: diff changeset	878
a61af66fc99e Initial load duke parents: diff changeset	879 // class ID
a61af66fc99e Initial load duke parents: diff changeset	880 writer->write_classID(Klass::cast(k));
a61af66fc99e Initial load duke parents: diff changeset	881
a61af66fc99e Initial load duke parents: diff changeset	882 // number of bytes that follow
a61af66fc99e Initial load duke parents: diff changeset	883 writer->write_u4(instance_size(k) );
a61af66fc99e Initial load duke parents: diff changeset	884
a61af66fc99e Initial load duke parents: diff changeset	885 // field values
a61af66fc99e Initial load duke parents: diff changeset	886 dump_instance_fields(writer, o);
a61af66fc99e Initial load duke parents: diff changeset	887 }
a61af66fc99e Initial load duke parents: diff changeset	888
a61af66fc99e Initial load duke parents: diff changeset	889 // creates HPROF_GC_CLASS_DUMP record for the given class and each of
a61af66fc99e Initial load duke parents: diff changeset	890 // its array classes
a61af66fc99e Initial load duke parents: diff changeset	891 void DumperSupport::dump_class_and_array_classes(DumpWriter* writer, klassOop k) {
a61af66fc99e Initial load duke parents: diff changeset	892 Klass* klass = Klass::cast(k);
a61af66fc99e Initial load duke parents: diff changeset	893 assert(klass->oop_is_instance(), "not an instanceKlass");
a61af66fc99e Initial load duke parents: diff changeset	894 instanceKlass* ik = (instanceKlass*)klass;
a61af66fc99e Initial load duke parents: diff changeset	895
a61af66fc99e Initial load duke parents: diff changeset	896 writer->write_u1(HPROF_GC_CLASS_DUMP);
a61af66fc99e Initial load duke parents: diff changeset	897
a61af66fc99e Initial load duke parents: diff changeset	898 // class ID
a61af66fc99e Initial load duke parents: diff changeset	899 writer->write_classID(ik);
a61af66fc99e Initial load duke parents: diff changeset	900 writer->write_u4(STACK_TRACE_ID);
a61af66fc99e Initial load duke parents: diff changeset	901
a61af66fc99e Initial load duke parents: diff changeset	902 // super class ID
a61af66fc99e Initial load duke parents: diff changeset	903 klassOop java_super = ik->java_super();
a61af66fc99e Initial load duke parents: diff changeset	904 if (java_super == NULL) {
a61af66fc99e Initial load duke parents: diff changeset	905 writer->write_objectID(NULL);
a61af66fc99e Initial load duke parents: diff changeset	906 } else {
a61af66fc99e Initial load duke parents: diff changeset	907 writer->write_classID(Klass::cast(java_super));
a61af66fc99e Initial load duke parents: diff changeset	908 }
a61af66fc99e Initial load duke parents: diff changeset	909
a61af66fc99e Initial load duke parents: diff changeset	910 writer->write_objectID(ik->class_loader());
a61af66fc99e Initial load duke parents: diff changeset	911 writer->write_objectID(ik->signers());
a61af66fc99e Initial load duke parents: diff changeset	912 writer->write_objectID(ik->protection_domain());
a61af66fc99e Initial load duke parents: diff changeset	913
a61af66fc99e Initial load duke parents: diff changeset	914 // reserved
a61af66fc99e Initial load duke parents: diff changeset	915 writer->write_objectID(NULL);
a61af66fc99e Initial load duke parents: diff changeset	916 writer->write_objectID(NULL);
a61af66fc99e Initial load duke parents: diff changeset	917
a61af66fc99e Initial load duke parents: diff changeset	918 // instance size
a61af66fc99e Initial load duke parents: diff changeset	919 writer->write_u4(DumperSupport::instance_size(k));
a61af66fc99e Initial load duke parents: diff changeset	920
a61af66fc99e Initial load duke parents: diff changeset	921 // size of constant pool - ignored by HAT 1.1
a61af66fc99e Initial load duke parents: diff changeset	922 writer->write_u2(0);
a61af66fc99e Initial load duke parents: diff changeset	923
a61af66fc99e Initial load duke parents: diff changeset	924 // number of static fields
a61af66fc99e Initial load duke parents: diff changeset	925 dump_static_fields(writer, k);
a61af66fc99e Initial load duke parents: diff changeset	926
a61af66fc99e Initial load duke parents: diff changeset	927 // description of instance fields
a61af66fc99e Initial load duke parents: diff changeset	928 dump_instance_field_descriptors(writer, k);
a61af66fc99e Initial load duke parents: diff changeset	929
a61af66fc99e Initial load duke parents: diff changeset	930 // array classes
a61af66fc99e Initial load duke parents: diff changeset	931 k = klass->array_klass_or_null();
a61af66fc99e Initial load duke parents: diff changeset	932 while (k != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	933 Klass* klass = Klass::cast(k);
a61af66fc99e Initial load duke parents: diff changeset	934 assert(klass->oop_is_objArray(), "not an objArrayKlass");
a61af66fc99e Initial load duke parents: diff changeset	935
a61af66fc99e Initial load duke parents: diff changeset	936 writer->write_u1(HPROF_GC_CLASS_DUMP);
a61af66fc99e Initial load duke parents: diff changeset	937 writer->write_classID(klass);
a61af66fc99e Initial load duke parents: diff changeset	938 writer->write_u4(STACK_TRACE_ID);
a61af66fc99e Initial load duke parents: diff changeset	939
a61af66fc99e Initial load duke parents: diff changeset	940 // super class of array classes is java.lang.Object
a61af66fc99e Initial load duke parents: diff changeset	941 java_super = klass->java_super();
a61af66fc99e Initial load duke parents: diff changeset	942 assert(java_super != NULL, "checking");
a61af66fc99e Initial load duke parents: diff changeset	943 writer->write_classID(Klass::cast(java_super));
a61af66fc99e Initial load duke parents: diff changeset	944
a61af66fc99e Initial load duke parents: diff changeset	945 writer->write_objectID(ik->class_loader());
a61af66fc99e Initial load duke parents: diff changeset	946 writer->write_objectID(ik->signers());
a61af66fc99e Initial load duke parents: diff changeset	947 writer->write_objectID(ik->protection_domain());
a61af66fc99e Initial load duke parents: diff changeset	948
a61af66fc99e Initial load duke parents: diff changeset	949 writer->write_objectID(NULL); // reserved
a61af66fc99e Initial load duke parents: diff changeset	950 writer->write_objectID(NULL);
a61af66fc99e Initial load duke parents: diff changeset	951 writer->write_u4(0); // instance size
a61af66fc99e Initial load duke parents: diff changeset	952 writer->write_u2(0); // constant pool
a61af66fc99e Initial load duke parents: diff changeset	953 writer->write_u2(0); // static fields
a61af66fc99e Initial load duke parents: diff changeset	954 writer->write_u2(0); // instance fields
a61af66fc99e Initial load duke parents: diff changeset	955
a61af66fc99e Initial load duke parents: diff changeset	956 // get the array class for the next rank
a61af66fc99e Initial load duke parents: diff changeset	957 k = klass->array_klass_or_null();
a61af66fc99e Initial load duke parents: diff changeset	958 }
a61af66fc99e Initial load duke parents: diff changeset	959 }
a61af66fc99e Initial load duke parents: diff changeset	960
a61af66fc99e Initial load duke parents: diff changeset	961 // creates HPROF_GC_CLASS_DUMP record for a given primitive array
a61af66fc99e Initial load duke parents: diff changeset	962 // class (and each multi-dimensional array class too)
a61af66fc99e Initial load duke parents: diff changeset	963 void DumperSupport::dump_basic_type_array_class(DumpWriter* writer, klassOop k) {
a61af66fc99e Initial load duke parents: diff changeset	964 // array classes
a61af66fc99e Initial load duke parents: diff changeset	965 while (k != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	966 Klass* klass = Klass::cast(k);
a61af66fc99e Initial load duke parents: diff changeset	967
a61af66fc99e Initial load duke parents: diff changeset	968 writer->write_u1(HPROF_GC_CLASS_DUMP);
a61af66fc99e Initial load duke parents: diff changeset	969 writer->write_classID(klass);
a61af66fc99e Initial load duke parents: diff changeset	970 writer->write_u4(STACK_TRACE_ID);
a61af66fc99e Initial load duke parents: diff changeset	971
a61af66fc99e Initial load duke parents: diff changeset	972 // super class of array classes is java.lang.Object
a61af66fc99e Initial load duke parents: diff changeset	973 klassOop java_super = klass->java_super();
a61af66fc99e Initial load duke parents: diff changeset	974 assert(java_super != NULL, "checking");
a61af66fc99e Initial load duke parents: diff changeset	975 writer->write_classID(Klass::cast(java_super));
a61af66fc99e Initial load duke parents: diff changeset	976
a61af66fc99e Initial load duke parents: diff changeset	977 writer->write_objectID(NULL); // loader
a61af66fc99e Initial load duke parents: diff changeset	978 writer->write_objectID(NULL); // signers
a61af66fc99e Initial load duke parents: diff changeset	979 writer->write_objectID(NULL); // protection domain
a61af66fc99e Initial load duke parents: diff changeset	980
a61af66fc99e Initial load duke parents: diff changeset	981 writer->write_objectID(NULL); // reserved
a61af66fc99e Initial load duke parents: diff changeset	982 writer->write_objectID(NULL);
a61af66fc99e Initial load duke parents: diff changeset	983 writer->write_u4(0); // instance size
a61af66fc99e Initial load duke parents: diff changeset	984 writer->write_u2(0); // constant pool
a61af66fc99e Initial load duke parents: diff changeset	985 writer->write_u2(0); // static fields
a61af66fc99e Initial load duke parents: diff changeset	986 writer->write_u2(0); // instance fields
a61af66fc99e Initial load duke parents: diff changeset	987
a61af66fc99e Initial load duke parents: diff changeset	988 // get the array class for the next rank
a61af66fc99e Initial load duke parents: diff changeset	989 k = klass->array_klass_or_null();
a61af66fc99e Initial load duke parents: diff changeset	990 }
a61af66fc99e Initial load duke parents: diff changeset	991 }
a61af66fc99e Initial load duke parents: diff changeset	992
a61af66fc99e Initial load duke parents: diff changeset	993 // creates HPROF_GC_OBJ_ARRAY_DUMP record for the given object array
a61af66fc99e Initial load duke parents: diff changeset	994 void DumperSupport::dump_object_array(DumpWriter* writer, objArrayOop array) {
a61af66fc99e Initial load duke parents: diff changeset	995
a61af66fc99e Initial load duke parents: diff changeset	996 // filter this
a61af66fc99e Initial load duke parents: diff changeset	997 if (array->klass() == Universe::systemObjArrayKlassObj()) return;
a61af66fc99e Initial load duke parents: diff changeset	998
a61af66fc99e Initial load duke parents: diff changeset	999 writer->write_u1(HPROF_GC_OBJ_ARRAY_DUMP);
a61af66fc99e Initial load duke parents: diff changeset	1000 writer->write_objectID(array);
a61af66fc99e Initial load duke parents: diff changeset	1001 writer->write_u4(STACK_TRACE_ID);
a61af66fc99e Initial load duke parents: diff changeset	1002 writer->write_u4((u4)array->length());
a61af66fc99e Initial load duke parents: diff changeset	1003
a61af66fc99e Initial load duke parents: diff changeset	1004 // array class ID
a61af66fc99e Initial load duke parents: diff changeset	1005 writer->write_classID(Klass::cast(array->klass()));
a61af66fc99e Initial load duke parents: diff changeset	1006
a61af66fc99e Initial load duke parents: diff changeset	1007 // [id]* elements
a61af66fc99e Initial load duke parents: diff changeset	1008 for (int index=0; index<array->length(); index++) {
a61af66fc99e Initial load duke parents: diff changeset	1009 oop o = array->obj_at(index);
a61af66fc99e Initial load duke parents: diff changeset	1010 writer->write_objectID(o);
a61af66fc99e Initial load duke parents: diff changeset	1011 }
a61af66fc99e Initial load duke parents: diff changeset	1012 }
a61af66fc99e Initial load duke parents: diff changeset	1013
a61af66fc99e Initial load duke parents: diff changeset	1014 #define WRITE_ARRAY(Array, Type, Size) \
a61af66fc99e Initial load duke parents: diff changeset	1015 for (int i=0; i<Array->length(); i++) { writer->write_##Size((Size)array->Type##_at(i)); }
a61af66fc99e Initial load duke parents: diff changeset	1016
a61af66fc99e Initial load duke parents: diff changeset	1017
a61af66fc99e Initial load duke parents: diff changeset	1018 // creates HPROF_GC_PRIM_ARRAY_DUMP record for the given type array
a61af66fc99e Initial load duke parents: diff changeset	1019 void DumperSupport::dump_prim_array(DumpWriter* writer, typeArrayOop array) {
a61af66fc99e Initial load duke parents: diff changeset	1020 BasicType type = typeArrayKlass::cast(array->klass())->element_type();
a61af66fc99e Initial load duke parents: diff changeset	1021
a61af66fc99e Initial load duke parents: diff changeset	1022 writer->write_u1(HPROF_GC_PRIM_ARRAY_DUMP);
a61af66fc99e Initial load duke parents: diff changeset	1023 writer->write_objectID(array);
a61af66fc99e Initial load duke parents: diff changeset	1024 writer->write_u4(STACK_TRACE_ID);
a61af66fc99e Initial load duke parents: diff changeset	1025 writer->write_u4((u4)array->length());
a61af66fc99e Initial load duke parents: diff changeset	1026 writer->write_u1(type2tag(type));
a61af66fc99e Initial load duke parents: diff changeset	1027
a61af66fc99e Initial load duke parents: diff changeset	1028 // nothing to copy
a61af66fc99e Initial load duke parents: diff changeset	1029 if (array->length() == 0) {
a61af66fc99e Initial load duke parents: diff changeset	1030 return;
a61af66fc99e Initial load duke parents: diff changeset	1031 }
a61af66fc99e Initial load duke parents: diff changeset	1032
a61af66fc99e Initial load duke parents: diff changeset	1033 // If the byte ordering is big endian then we can copy most types directly
29 d5fc211aea19 6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM kvn parents: 0 diff changeset	1034 int length_in_bytes = array->length() * type2aelembytes(type);
0 a61af66fc99e Initial load duke parents: diff changeset	1035 assert(length_in_bytes > 0, "nothing to copy");
a61af66fc99e Initial load duke parents: diff changeset	1036
a61af66fc99e Initial load duke parents: diff changeset	1037 switch (type) {
a61af66fc99e Initial load duke parents: diff changeset	1038 case T_INT : {
a61af66fc99e Initial load duke parents: diff changeset	1039 if (Bytes::is_Java_byte_ordering_different()) {
a61af66fc99e Initial load duke parents: diff changeset	1040 WRITE_ARRAY(array, int, u4);
a61af66fc99e Initial load duke parents: diff changeset	1041 } else {
a61af66fc99e Initial load duke parents: diff changeset	1042 writer->write_raw((void*)(array->int_at_addr(0)), length_in_bytes);
a61af66fc99e Initial load duke parents: diff changeset	1043 }
a61af66fc99e Initial load duke parents: diff changeset	1044 break;
a61af66fc99e Initial load duke parents: diff changeset	1045 }
a61af66fc99e Initial load duke parents: diff changeset	1046 case T_BYTE : {
a61af66fc99e Initial load duke parents: diff changeset	1047 writer->write_raw((void*)(array->byte_at_addr(0)), length_in_bytes);
a61af66fc99e Initial load duke parents: diff changeset	1048 break;
a61af66fc99e Initial load duke parents: diff changeset	1049 }
a61af66fc99e Initial load duke parents: diff changeset	1050 case T_CHAR : {
a61af66fc99e Initial load duke parents: diff changeset	1051 if (Bytes::is_Java_byte_ordering_different()) {
a61af66fc99e Initial load duke parents: diff changeset	1052 WRITE_ARRAY(array, char, u2);
a61af66fc99e Initial load duke parents: diff changeset	1053 } else {
a61af66fc99e Initial load duke parents: diff changeset	1054 writer->write_raw((void*)(array->char_at_addr(0)), length_in_bytes);
a61af66fc99e Initial load duke parents: diff changeset	1055 }
a61af66fc99e Initial load duke parents: diff changeset	1056 break;
a61af66fc99e Initial load duke parents: diff changeset	1057 }
a61af66fc99e Initial load duke parents: diff changeset	1058 case T_SHORT : {
a61af66fc99e Initial load duke parents: diff changeset	1059 if (Bytes::is_Java_byte_ordering_different()) {
a61af66fc99e Initial load duke parents: diff changeset	1060 WRITE_ARRAY(array, short, u2);
a61af66fc99e Initial load duke parents: diff changeset	1061 } else {
a61af66fc99e Initial load duke parents: diff changeset	1062 writer->write_raw((void*)(array->short_at_addr(0)), length_in_bytes);
a61af66fc99e Initial load duke parents: diff changeset	1063 }
a61af66fc99e Initial load duke parents: diff changeset	1064 break;
a61af66fc99e Initial load duke parents: diff changeset	1065 }
a61af66fc99e Initial load duke parents: diff changeset	1066 case T_BOOLEAN : {
a61af66fc99e Initial load duke parents: diff changeset	1067 if (Bytes::is_Java_byte_ordering_different()) {
a61af66fc99e Initial load duke parents: diff changeset	1068 WRITE_ARRAY(array, bool, u1);
a61af66fc99e Initial load duke parents: diff changeset	1069 } else {
a61af66fc99e Initial load duke parents: diff changeset	1070 writer->write_raw((void*)(array->bool_at_addr(0)), length_in_bytes);
a61af66fc99e Initial load duke parents: diff changeset	1071 }
a61af66fc99e Initial load duke parents: diff changeset	1072 break;
a61af66fc99e Initial load duke parents: diff changeset	1073 }
a61af66fc99e Initial load duke parents: diff changeset	1074 case T_LONG : {
a61af66fc99e Initial load duke parents: diff changeset	1075 if (Bytes::is_Java_byte_ordering_different()) {
a61af66fc99e Initial load duke parents: diff changeset	1076 WRITE_ARRAY(array, long, u8);
a61af66fc99e Initial load duke parents: diff changeset	1077 } else {
a61af66fc99e Initial load duke parents: diff changeset	1078 writer->write_raw((void*)(array->long_at_addr(0)), length_in_bytes);
a61af66fc99e Initial load duke parents: diff changeset	1079 }
a61af66fc99e Initial load duke parents: diff changeset	1080 break;
a61af66fc99e Initial load duke parents: diff changeset	1081 }
a61af66fc99e Initial load duke parents: diff changeset	1082
a61af66fc99e Initial load duke parents: diff changeset	1083 // handle float/doubles in a special value to ensure than NaNs are
a61af66fc99e Initial load duke parents: diff changeset	1084 // written correctly. TO DO: Check if we can avoid this on processors that
a61af66fc99e Initial load duke parents: diff changeset	1085 // use IEEE 754.
a61af66fc99e Initial load duke parents: diff changeset	1086
a61af66fc99e Initial load duke parents: diff changeset	1087 case T_FLOAT : {
a61af66fc99e Initial load duke parents: diff changeset	1088 for (int i=0; i<array->length(); i++) {
a61af66fc99e Initial load duke parents: diff changeset	1089 dump_float( writer, array->float_at(i) );
a61af66fc99e Initial load duke parents: diff changeset	1090 }
a61af66fc99e Initial load duke parents: diff changeset	1091 break;
a61af66fc99e Initial load duke parents: diff changeset	1092 }
a61af66fc99e Initial load duke parents: diff changeset	1093 case T_DOUBLE : {
a61af66fc99e Initial load duke parents: diff changeset	1094 for (int i=0; i<array->length(); i++) {
a61af66fc99e Initial load duke parents: diff changeset	1095 dump_double( writer, array->double_at(i) );
a61af66fc99e Initial load duke parents: diff changeset	1096 }
a61af66fc99e Initial load duke parents: diff changeset	1097 break;
a61af66fc99e Initial load duke parents: diff changeset	1098 }
a61af66fc99e Initial load duke parents: diff changeset	1099 default : ShouldNotReachHere();
a61af66fc99e Initial load duke parents: diff changeset	1100 }
a61af66fc99e Initial load duke parents: diff changeset	1101 }
a61af66fc99e Initial load duke parents: diff changeset	1102
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1103 // create a HPROF_FRAME record of the given methodOop and bci
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1104 void DumperSupport::dump_stack_frame(DumpWriter* writer,
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1105 int frame_serial_num,
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1106 int class_serial_num,
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1107 methodOop m,
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1108 int bci) {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1109 int line_number;
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1110 if (m->is_native()) {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1111 line_number = -3; // native frame
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1112 } else {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1113 line_number = m->line_number_from_bci(bci);
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1114 }
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1115
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1116 write_header(writer, HPROF_FRAME, 4oopSize + 2sizeof(u4));
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1117 writer->write_id(frame_serial_num); // frame serial number
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1118 writer->write_objectID(m->name()); // method's name
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1119 writer->write_objectID(m->signature()); // method's signature
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1120
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1121 assert(Klass::cast(m->method_holder())->oop_is_instance(), "not instanceKlass");
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1122 writer->write_objectID(instanceKlass::cast(m->method_holder())->source_file_name()); // source file name
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1123 writer->write_u4(class_serial_num); // class serial number
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1124 writer->write_u4((u4) line_number); // line number
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1125 }
0 a61af66fc99e Initial load duke parents: diff changeset	1126
a61af66fc99e Initial load duke parents: diff changeset	1127 // Support class used to generate HPROF_UTF8 records from the entries in the
a61af66fc99e Initial load duke parents: diff changeset	1128 // SymbolTable.
a61af66fc99e Initial load duke parents: diff changeset	1129
a61af66fc99e Initial load duke parents: diff changeset	1130 class SymbolTableDumper : public OopClosure {
a61af66fc99e Initial load duke parents: diff changeset	1131 private:
a61af66fc99e Initial load duke parents: diff changeset	1132 DumpWriter* _writer;
a61af66fc99e Initial load duke parents: diff changeset	1133 DumpWriter* writer() const { return _writer; }
a61af66fc99e Initial load duke parents: diff changeset	1134 public:
a61af66fc99e Initial load duke parents: diff changeset	1135 SymbolTableDumper(DumpWriter* writer) { _writer = writer; }
a61af66fc99e Initial load duke parents: diff changeset	1136 void do_oop(oop* obj_p);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 29 diff changeset	1137 void do_oop(narrowOop* obj_p) { ShouldNotReachHere(); }
0 a61af66fc99e Initial load duke parents: diff changeset	1138 };
a61af66fc99e Initial load duke parents: diff changeset	1139
a61af66fc99e Initial load duke parents: diff changeset	1140 void SymbolTableDumper::do_oop(oop* obj_p) {
a61af66fc99e Initial load duke parents: diff changeset	1141 ResourceMark rm;
a61af66fc99e Initial load duke parents: diff changeset	1142 symbolOop sym = (symbolOop)*obj_p;
a61af66fc99e Initial load duke parents: diff changeset	1143
a61af66fc99e Initial load duke parents: diff changeset	1144 int len = sym->utf8_length();
a61af66fc99e Initial load duke parents: diff changeset	1145 if (len > 0) {
a61af66fc99e Initial load duke parents: diff changeset	1146 char* s = sym->as_utf8();
a61af66fc99e Initial load duke parents: diff changeset	1147 DumperSupport::write_header(writer(), HPROF_UTF8, oopSize + len);
a61af66fc99e Initial load duke parents: diff changeset	1148 writer()->write_objectID(sym);
a61af66fc99e Initial load duke parents: diff changeset	1149 writer()->write_raw(s, len);
a61af66fc99e Initial load duke parents: diff changeset	1150 }
a61af66fc99e Initial load duke parents: diff changeset	1151 }
a61af66fc99e Initial load duke parents: diff changeset	1152
a61af66fc99e Initial load duke parents: diff changeset	1153
a61af66fc99e Initial load duke parents: diff changeset	1154 // Support class used to generate HPROF_GC_ROOT_JNI_LOCAL records
a61af66fc99e Initial load duke parents: diff changeset	1155
a61af66fc99e Initial load duke parents: diff changeset	1156 class JNILocalsDumper : public OopClosure {
a61af66fc99e Initial load duke parents: diff changeset	1157 private:
a61af66fc99e Initial load duke parents: diff changeset	1158 DumpWriter* _writer;
a61af66fc99e Initial load duke parents: diff changeset	1159 u4 _thread_serial_num;
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1160 int _frame_num;
0 a61af66fc99e Initial load duke parents: diff changeset	1161 DumpWriter* writer() const { return _writer; }
a61af66fc99e Initial load duke parents: diff changeset	1162 public:
a61af66fc99e Initial load duke parents: diff changeset	1163 JNILocalsDumper(DumpWriter* writer, u4 thread_serial_num) {
a61af66fc99e Initial load duke parents: diff changeset	1164 _writer = writer;
a61af66fc99e Initial load duke parents: diff changeset	1165 _thread_serial_num = thread_serial_num;
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1166 _frame_num = -1; // default - empty stack
0 a61af66fc99e Initial load duke parents: diff changeset	1167 }
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1168 void set_frame_number(int n) { _frame_num = n; }
0 a61af66fc99e Initial load duke parents: diff changeset	1169 void do_oop(oop* obj_p);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 29 diff changeset	1170 void do_oop(narrowOop* obj_p) { ShouldNotReachHere(); }
0 a61af66fc99e Initial load duke parents: diff changeset	1171 };
a61af66fc99e Initial load duke parents: diff changeset	1172
a61af66fc99e Initial load duke parents: diff changeset	1173
a61af66fc99e Initial load duke parents: diff changeset	1174 void JNILocalsDumper::do_oop(oop* obj_p) {
a61af66fc99e Initial load duke parents: diff changeset	1175 // ignore null or deleted handles
a61af66fc99e Initial load duke parents: diff changeset	1176 oop o = *obj_p;
a61af66fc99e Initial load duke parents: diff changeset	1177 if (o != NULL && o != JNIHandles::deleted_handle()) {
a61af66fc99e Initial load duke parents: diff changeset	1178 writer()->write_u1(HPROF_GC_ROOT_JNI_LOCAL);
a61af66fc99e Initial load duke parents: diff changeset	1179 writer()->write_objectID(o);
a61af66fc99e Initial load duke parents: diff changeset	1180 writer()->write_u4(_thread_serial_num);
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1181 writer()->write_u4((u4)_frame_num);
0 a61af66fc99e Initial load duke parents: diff changeset	1182 }
a61af66fc99e Initial load duke parents: diff changeset	1183 }
a61af66fc99e Initial load duke parents: diff changeset	1184
a61af66fc99e Initial load duke parents: diff changeset	1185
a61af66fc99e Initial load duke parents: diff changeset	1186 // Support class used to generate HPROF_GC_ROOT_JNI_GLOBAL records
a61af66fc99e Initial load duke parents: diff changeset	1187
a61af66fc99e Initial load duke parents: diff changeset	1188 class JNIGlobalsDumper : public OopClosure {
a61af66fc99e Initial load duke parents: diff changeset	1189 private:
a61af66fc99e Initial load duke parents: diff changeset	1190 DumpWriter* _writer;
a61af66fc99e Initial load duke parents: diff changeset	1191 DumpWriter* writer() const { return _writer; }
a61af66fc99e Initial load duke parents: diff changeset	1192
a61af66fc99e Initial load duke parents: diff changeset	1193 public:
a61af66fc99e Initial load duke parents: diff changeset	1194 JNIGlobalsDumper(DumpWriter* writer) {
a61af66fc99e Initial load duke parents: diff changeset	1195 _writer = writer;
a61af66fc99e Initial load duke parents: diff changeset	1196 }
a61af66fc99e Initial load duke parents: diff changeset	1197 void do_oop(oop* obj_p);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 29 diff changeset	1198 void do_oop(narrowOop* obj_p) { ShouldNotReachHere(); }
0 a61af66fc99e Initial load duke parents: diff changeset	1199 };
a61af66fc99e Initial load duke parents: diff changeset	1200
a61af66fc99e Initial load duke parents: diff changeset	1201 void JNIGlobalsDumper::do_oop(oop* obj_p) {
a61af66fc99e Initial load duke parents: diff changeset	1202 oop o = *obj_p;
a61af66fc99e Initial load duke parents: diff changeset	1203
a61af66fc99e Initial load duke parents: diff changeset	1204 // ignore these
a61af66fc99e Initial load duke parents: diff changeset	1205 if (o == NULL \|\| o == JNIHandles::deleted_handle()) return;
a61af66fc99e Initial load duke parents: diff changeset	1206
a61af66fc99e Initial load duke parents: diff changeset	1207 // we ignore global ref to symbols and other internal objects
a61af66fc99e Initial load duke parents: diff changeset	1208 if (o->is_instance() \|\| o->is_objArray() \|\| o->is_typeArray()) {
a61af66fc99e Initial load duke parents: diff changeset	1209 writer()->write_u1(HPROF_GC_ROOT_JNI_GLOBAL);
a61af66fc99e Initial load duke parents: diff changeset	1210 writer()->write_objectID(o);
a61af66fc99e Initial load duke parents: diff changeset	1211 writer()->write_objectID((oopDesc*)obj_p); // global ref ID
a61af66fc99e Initial load duke parents: diff changeset	1212 }
a61af66fc99e Initial load duke parents: diff changeset	1213 };
a61af66fc99e Initial load duke parents: diff changeset	1214
a61af66fc99e Initial load duke parents: diff changeset	1215
a61af66fc99e Initial load duke parents: diff changeset	1216 // Support class used to generate HPROF_GC_ROOT_MONITOR_USED records
a61af66fc99e Initial load duke parents: diff changeset	1217
a61af66fc99e Initial load duke parents: diff changeset	1218 class MonitorUsedDumper : public OopClosure {
a61af66fc99e Initial load duke parents: diff changeset	1219 private:
a61af66fc99e Initial load duke parents: diff changeset	1220 DumpWriter* _writer;
a61af66fc99e Initial load duke parents: diff changeset	1221 DumpWriter* writer() const { return _writer; }
a61af66fc99e Initial load duke parents: diff changeset	1222 public:
a61af66fc99e Initial load duke parents: diff changeset	1223 MonitorUsedDumper(DumpWriter* writer) {
a61af66fc99e Initial load duke parents: diff changeset	1224 _writer = writer;
a61af66fc99e Initial load duke parents: diff changeset	1225 }
a61af66fc99e Initial load duke parents: diff changeset	1226 void do_oop(oop* obj_p) {
a61af66fc99e Initial load duke parents: diff changeset	1227 writer()->write_u1(HPROF_GC_ROOT_MONITOR_USED);
a61af66fc99e Initial load duke parents: diff changeset	1228 writer()->write_objectID(*obj_p);
a61af66fc99e Initial load duke parents: diff changeset	1229 }
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 29 diff changeset	1230 void do_oop(narrowOop* obj_p) { ShouldNotReachHere(); }
0 a61af66fc99e Initial load duke parents: diff changeset	1231 };
a61af66fc99e Initial load duke parents: diff changeset	1232
a61af66fc99e Initial load duke parents: diff changeset	1233
a61af66fc99e Initial load duke parents: diff changeset	1234 // Support class used to generate HPROF_GC_ROOT_STICKY_CLASS records
a61af66fc99e Initial load duke parents: diff changeset	1235
a61af66fc99e Initial load duke parents: diff changeset	1236 class StickyClassDumper : public OopClosure {
a61af66fc99e Initial load duke parents: diff changeset	1237 private:
a61af66fc99e Initial load duke parents: diff changeset	1238 DumpWriter* _writer;
a61af66fc99e Initial load duke parents: diff changeset	1239 DumpWriter* writer() const { return _writer; }
a61af66fc99e Initial load duke parents: diff changeset	1240 public:
a61af66fc99e Initial load duke parents: diff changeset	1241 StickyClassDumper(DumpWriter* writer) {
a61af66fc99e Initial load duke parents: diff changeset	1242 _writer = writer;
a61af66fc99e Initial load duke parents: diff changeset	1243 }
a61af66fc99e Initial load duke parents: diff changeset	1244 void do_oop(oop* obj_p);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 29 diff changeset	1245 void do_oop(narrowOop* obj_p) { ShouldNotReachHere(); }
0 a61af66fc99e Initial load duke parents: diff changeset	1246 };
a61af66fc99e Initial load duke parents: diff changeset	1247
a61af66fc99e Initial load duke parents: diff changeset	1248 void StickyClassDumper::do_oop(oop* obj_p) {
a61af66fc99e Initial load duke parents: diff changeset	1249 if (*obj_p != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	1250 oop o = *obj_p;
a61af66fc99e Initial load duke parents: diff changeset	1251 if (o->is_klass()) {
a61af66fc99e Initial load duke parents: diff changeset	1252 klassOop k = klassOop(o);
a61af66fc99e Initial load duke parents: diff changeset	1253 if (Klass::cast(k)->oop_is_instance()) {
a61af66fc99e Initial load duke parents: diff changeset	1254 instanceKlass* ik = instanceKlass::cast(k);
a61af66fc99e Initial load duke parents: diff changeset	1255 writer()->write_u1(HPROF_GC_ROOT_STICKY_CLASS);
a61af66fc99e Initial load duke parents: diff changeset	1256 writer()->write_classID(ik);
a61af66fc99e Initial load duke parents: diff changeset	1257 }
a61af66fc99e Initial load duke parents: diff changeset	1258 }
a61af66fc99e Initial load duke parents: diff changeset	1259 }
a61af66fc99e Initial load duke parents: diff changeset	1260 }
a61af66fc99e Initial load duke parents: diff changeset	1261
a61af66fc99e Initial load duke parents: diff changeset	1262
a61af66fc99e Initial load duke parents: diff changeset	1263 class VM_HeapDumper;
a61af66fc99e Initial load duke parents: diff changeset	1264
a61af66fc99e Initial load duke parents: diff changeset	1265 // Support class using when iterating over the heap.
a61af66fc99e Initial load duke parents: diff changeset	1266
a61af66fc99e Initial load duke parents: diff changeset	1267 class HeapObjectDumper : public ObjectClosure {
a61af66fc99e Initial load duke parents: diff changeset	1268 private:
a61af66fc99e Initial load duke parents: diff changeset	1269 VM_HeapDumper* _dumper;
a61af66fc99e Initial load duke parents: diff changeset	1270 DumpWriter* _writer;
a61af66fc99e Initial load duke parents: diff changeset	1271
a61af66fc99e Initial load duke parents: diff changeset	1272 VM_HeapDumper* dumper() { return _dumper; }
a61af66fc99e Initial load duke parents: diff changeset	1273 DumpWriter* writer() { return _writer; }
a61af66fc99e Initial load duke parents: diff changeset	1274
a61af66fc99e Initial load duke parents: diff changeset	1275 // used to indicate that a record has been writen
a61af66fc99e Initial load duke parents: diff changeset	1276 void mark_end_of_record();
a61af66fc99e Initial load duke parents: diff changeset	1277
a61af66fc99e Initial load duke parents: diff changeset	1278 public:
a61af66fc99e Initial load duke parents: diff changeset	1279 HeapObjectDumper(VM_HeapDumper* dumper, DumpWriter* writer) {
a61af66fc99e Initial load duke parents: diff changeset	1280 _dumper = dumper;
a61af66fc99e Initial load duke parents: diff changeset	1281 _writer = writer;
a61af66fc99e Initial load duke parents: diff changeset	1282 }
a61af66fc99e Initial load duke parents: diff changeset	1283
a61af66fc99e Initial load duke parents: diff changeset	1284 // called for each object in the heap
a61af66fc99e Initial load duke parents: diff changeset	1285 void do_object(oop o);
a61af66fc99e Initial load duke parents: diff changeset	1286 };
a61af66fc99e Initial load duke parents: diff changeset	1287
a61af66fc99e Initial load duke parents: diff changeset	1288 void HeapObjectDumper::do_object(oop o) {
a61af66fc99e Initial load duke parents: diff changeset	1289 // hide the sentinel for deleted handles
a61af66fc99e Initial load duke parents: diff changeset	1290 if (o == JNIHandles::deleted_handle()) return;
a61af66fc99e Initial load duke parents: diff changeset	1291
a61af66fc99e Initial load duke parents: diff changeset	1292 // ignore KlassKlass objects
a61af66fc99e Initial load duke parents: diff changeset	1293 if (o->is_klass()) return;
a61af66fc99e Initial load duke parents: diff changeset	1294
a61af66fc99e Initial load duke parents: diff changeset	1295 // skip classes as these emitted as HPROF_GC_CLASS_DUMP records
1142 4ce7240d622c 6914300: ciEnv should export all well known classes never parents: 1046 diff changeset	1296 if (o->klass() == SystemDictionary::Class_klass()) {
0 a61af66fc99e Initial load duke parents: diff changeset	1297 if (!java_lang_Class::is_primitive(o)) {
a61af66fc99e Initial load duke parents: diff changeset	1298 return;
a61af66fc99e Initial load duke parents: diff changeset	1299 }
a61af66fc99e Initial load duke parents: diff changeset	1300 }
a61af66fc99e Initial load duke parents: diff changeset	1301
a61af66fc99e Initial load duke parents: diff changeset	1302 // create a HPROF_GC_INSTANCE record for each object
a61af66fc99e Initial load duke parents: diff changeset	1303 if (o->is_instance()) {
a61af66fc99e Initial load duke parents: diff changeset	1304 DumperSupport::dump_instance(writer(), o);
a61af66fc99e Initial load duke parents: diff changeset	1305 mark_end_of_record();
a61af66fc99e Initial load duke parents: diff changeset	1306 } else {
a61af66fc99e Initial load duke parents: diff changeset	1307 // create a HPROF_GC_OBJ_ARRAY_DUMP record for each object array
a61af66fc99e Initial load duke parents: diff changeset	1308 if (o->is_objArray()) {
a61af66fc99e Initial load duke parents: diff changeset	1309 DumperSupport::dump_object_array(writer(), objArrayOop(o));
a61af66fc99e Initial load duke parents: diff changeset	1310 mark_end_of_record();
a61af66fc99e Initial load duke parents: diff changeset	1311 } else {
a61af66fc99e Initial load duke parents: diff changeset	1312 // create a HPROF_GC_PRIM_ARRAY_DUMP record for each type array
a61af66fc99e Initial load duke parents: diff changeset	1313 if (o->is_typeArray()) {
a61af66fc99e Initial load duke parents: diff changeset	1314 DumperSupport::dump_prim_array(writer(), typeArrayOop(o));
a61af66fc99e Initial load duke parents: diff changeset	1315 mark_end_of_record();
a61af66fc99e Initial load duke parents: diff changeset	1316 }
a61af66fc99e Initial load duke parents: diff changeset	1317 }
a61af66fc99e Initial load duke parents: diff changeset	1318 }
a61af66fc99e Initial load duke parents: diff changeset	1319 }
a61af66fc99e Initial load duke parents: diff changeset	1320
a61af66fc99e Initial load duke parents: diff changeset	1321 // The VM operation that performs the heap dump
a61af66fc99e Initial load duke parents: diff changeset	1322 class VM_HeapDumper : public VM_GC_Operation {
a61af66fc99e Initial load duke parents: diff changeset	1323 private:
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1324 static VM_HeapDumper* _global_dumper;
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1325 static DumpWriter* _global_writer;
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1326 DumpWriter* _local_writer;
1775 30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1327 JavaThread* _oome_thread;
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1328 methodOop _oome_constructor;
0 a61af66fc99e Initial load duke parents: diff changeset	1329 bool _gc_before_heap_dump;
a61af66fc99e Initial load duke parents: diff changeset	1330 bool _is_segmented_dump;
a61af66fc99e Initial load duke parents: diff changeset	1331 jlong _dump_start;
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1332 GrowableArray<Klass> _klass_map;
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1333 ThreadStackTrace** _stack_traces;
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1334 int _num_threads;
0 a61af66fc99e Initial load duke parents: diff changeset	1335
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1336 // accessors and setters
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1337 static VM_HeapDumper* dumper() { assert(_global_dumper != NULL, "Error"); return _global_dumper; }
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1338 static DumpWriter* writer() { assert(_global_writer != NULL, "Error"); return _global_writer; }
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1339 void set_global_dumper() {
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1340 assert(_global_dumper == NULL, "Error");
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1341 _global_dumper = this;
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1342 }
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1343 void set_global_writer() {
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1344 assert(_global_writer == NULL, "Error");
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1345 _global_writer = _local_writer;
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1346 }
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1347 void clear_global_dumper() { _global_dumper = NULL; }
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1348 void clear_global_writer() { _global_writer = NULL; }
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1349
0 a61af66fc99e Initial load duke parents: diff changeset	1350 bool is_segmented_dump() const { return _is_segmented_dump; }
a61af66fc99e Initial load duke parents: diff changeset	1351 void set_segmented_dump() { _is_segmented_dump = true; }
a61af66fc99e Initial load duke parents: diff changeset	1352 jlong dump_start() const { return _dump_start; }
a61af66fc99e Initial load duke parents: diff changeset	1353 void set_dump_start(jlong pos);
a61af66fc99e Initial load duke parents: diff changeset	1354
a61af66fc99e Initial load duke parents: diff changeset	1355 bool skip_operation() const;
a61af66fc99e Initial load duke parents: diff changeset	1356
a61af66fc99e Initial load duke parents: diff changeset	1357 // writes a HPROF_LOAD_CLASS record
a61af66fc99e Initial load duke parents: diff changeset	1358 static void do_load_class(klassOop k);
a61af66fc99e Initial load duke parents: diff changeset	1359
a61af66fc99e Initial load duke parents: diff changeset	1360 // writes a HPROF_GC_CLASS_DUMP record for the given class
a61af66fc99e Initial load duke parents: diff changeset	1361 // (and each array class too)
a61af66fc99e Initial load duke parents: diff changeset	1362 static void do_class_dump(klassOop k);
a61af66fc99e Initial load duke parents: diff changeset	1363
a61af66fc99e Initial load duke parents: diff changeset	1364 // writes a HPROF_GC_CLASS_DUMP records for a given basic type
a61af66fc99e Initial load duke parents: diff changeset	1365 // array (and each multi-dimensional array too)
a61af66fc99e Initial load duke parents: diff changeset	1366 static void do_basic_type_array_class_dump(klassOop k);
a61af66fc99e Initial load duke parents: diff changeset	1367
a61af66fc99e Initial load duke parents: diff changeset	1368 // HPROF_GC_ROOT_THREAD_OBJ records
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1369 int do_thread(JavaThread* thread, u4 thread_serial_num);
0 a61af66fc99e Initial load duke parents: diff changeset	1370 void do_threads();
a61af66fc99e Initial load duke parents: diff changeset	1371
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1372 void add_class_serial_number(Klass* k, int serial_num) {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1373 _klass_map->at_put_grow(serial_num, k);
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1374 }
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1375
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1376 // HPROF_TRACE and HPROF_FRAME records
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1377 void dump_stack_traces();
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1378
0 a61af66fc99e Initial load duke parents: diff changeset	1379 // writes a HPROF_HEAP_DUMP or HPROF_HEAP_DUMP_SEGMENT record
a61af66fc99e Initial load duke parents: diff changeset	1380 void write_dump_header();
a61af66fc99e Initial load duke parents: diff changeset	1381
a61af66fc99e Initial load duke parents: diff changeset	1382 // fixes up the length of the current dump record
a61af66fc99e Initial load duke parents: diff changeset	1383 void write_current_dump_record_length();
a61af66fc99e Initial load duke parents: diff changeset	1384
a61af66fc99e Initial load duke parents: diff changeset	1385 // fixes up the current dump record )and writes HPROF_HEAP_DUMP_END
a61af66fc99e Initial load duke parents: diff changeset	1386 // record in the case of a segmented heap dump)
a61af66fc99e Initial load duke parents: diff changeset	1387 void end_of_dump();
a61af66fc99e Initial load duke parents: diff changeset	1388
a61af66fc99e Initial load duke parents: diff changeset	1389 public:
1775 30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1390 VM_HeapDumper(DumpWriter* writer, bool gc_before_heap_dump, bool oome) :
0 a61af66fc99e Initial load duke parents: diff changeset	1391 VM_GC_Operation(0 /* total collections, dummy, ignored */,
a61af66fc99e Initial load duke parents: diff changeset	1392 0 /* total full collections, dummy, ignored */,
a61af66fc99e Initial load duke parents: diff changeset	1393 gc_before_heap_dump) {
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1394 _local_writer = writer;
0 a61af66fc99e Initial load duke parents: diff changeset	1395 _gc_before_heap_dump = gc_before_heap_dump;
a61af66fc99e Initial load duke parents: diff changeset	1396 _is_segmented_dump = false;
a61af66fc99e Initial load duke parents: diff changeset	1397 _dump_start = (jlong)-1;
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1398 _klass_map = new (ResourceObj::C_HEAP) GrowableArray<Klass*>(INITIAL_CLASS_COUNT, true);
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1399 _stack_traces = NULL;
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1400 _num_threads = 0;
1775 30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1401 if (oome) {
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1402 assert(!Thread::current()->is_VM_thread(), "Dump from OutOfMemoryError cannot be called by the VMThread");
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1403 // get OutOfMemoryError zero-parameter constructor
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1404 instanceKlass* oome_ik = instanceKlass::cast(SystemDictionary::OutOfMemoryError_klass());
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1405 _oome_constructor = oome_ik->find_method(vmSymbols::object_initializer_name(),
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1406 vmSymbols::void_method_signature());
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1407 // get thread throwing OOME when generating the heap dump at OOME
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1408 _oome_thread = JavaThread::current();
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1409 } else {
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1410 _oome_thread = NULL;
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1411 _oome_constructor = NULL;
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1412 }
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1413 }
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1414 ~VM_HeapDumper() {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1415 if (_stack_traces != NULL) {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1416 for (int i=0; i < _num_threads; i++) {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1417 delete _stack_traces[i];
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1418 }
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1419 FREE_C_HEAP_ARRAY(ThreadStackTrace*, _stack_traces);
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1420 }
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1421 delete _klass_map;
0 a61af66fc99e Initial load duke parents: diff changeset	1422 }
a61af66fc99e Initial load duke parents: diff changeset	1423
a61af66fc99e Initial load duke parents: diff changeset	1424 VMOp_Type type() const { return VMOp_HeapDumper; }
a61af66fc99e Initial load duke parents: diff changeset	1425 // used to mark sub-record boundary
a61af66fc99e Initial load duke parents: diff changeset	1426 void check_segment_length();
a61af66fc99e Initial load duke parents: diff changeset	1427 void doit();
a61af66fc99e Initial load duke parents: diff changeset	1428 };
a61af66fc99e Initial load duke parents: diff changeset	1429
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1430 VM_HeapDumper* VM_HeapDumper::_global_dumper = NULL;
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1431 DumpWriter* VM_HeapDumper::_global_writer = NULL;
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1432
0 a61af66fc99e Initial load duke parents: diff changeset	1433 bool VM_HeapDumper::skip_operation() const {
a61af66fc99e Initial load duke parents: diff changeset	1434 return false;
a61af66fc99e Initial load duke parents: diff changeset	1435 }
a61af66fc99e Initial load duke parents: diff changeset	1436
a61af66fc99e Initial load duke parents: diff changeset	1437 // sets the dump starting position
a61af66fc99e Initial load duke parents: diff changeset	1438 void VM_HeapDumper::set_dump_start(jlong pos) {
a61af66fc99e Initial load duke parents: diff changeset	1439 _dump_start = pos;
a61af66fc99e Initial load duke parents: diff changeset	1440 }
a61af66fc99e Initial load duke parents: diff changeset	1441
a61af66fc99e Initial load duke parents: diff changeset	1442 // writes a HPROF_HEAP_DUMP or HPROF_HEAP_DUMP_SEGMENT record
a61af66fc99e Initial load duke parents: diff changeset	1443 void VM_HeapDumper::write_dump_header() {
a61af66fc99e Initial load duke parents: diff changeset	1444 if (writer()->is_open()) {
a61af66fc99e Initial load duke parents: diff changeset	1445 if (is_segmented_dump()) {
a61af66fc99e Initial load duke parents: diff changeset	1446 writer()->write_u1(HPROF_HEAP_DUMP_SEGMENT);
a61af66fc99e Initial load duke parents: diff changeset	1447 } else {
a61af66fc99e Initial load duke parents: diff changeset	1448 writer()->write_u1(HPROF_HEAP_DUMP);
a61af66fc99e Initial load duke parents: diff changeset	1449 }
a61af66fc99e Initial load duke parents: diff changeset	1450 writer()->write_u4(0); // current ticks
a61af66fc99e Initial load duke parents: diff changeset	1451
a61af66fc99e Initial load duke parents: diff changeset	1452 // record the starting position for the dump (its length will be fixed up later)
a61af66fc99e Initial load duke parents: diff changeset	1453 set_dump_start(writer()->current_offset());
a61af66fc99e Initial load duke parents: diff changeset	1454 writer()->write_u4(0);
a61af66fc99e Initial load duke parents: diff changeset	1455 }
a61af66fc99e Initial load duke parents: diff changeset	1456 }
a61af66fc99e Initial load duke parents: diff changeset	1457
a61af66fc99e Initial load duke parents: diff changeset	1458 // fixes up the length of the current dump record
a61af66fc99e Initial load duke parents: diff changeset	1459 void VM_HeapDumper::write_current_dump_record_length() {
a61af66fc99e Initial load duke parents: diff changeset	1460 if (writer()->is_open()) {
a61af66fc99e Initial load duke parents: diff changeset	1461 assert(dump_start() >= 0, "no dump start recorded");
a61af66fc99e Initial load duke parents: diff changeset	1462
a61af66fc99e Initial load duke parents: diff changeset	1463 // calculate the size of the dump record
a61af66fc99e Initial load duke parents: diff changeset	1464 jlong dump_end = writer()->current_offset();
a61af66fc99e Initial load duke parents: diff changeset	1465 jlong dump_len = (dump_end - dump_start() - 4);
a61af66fc99e Initial load duke parents: diff changeset	1466
a61af66fc99e Initial load duke parents: diff changeset	1467 // record length must fit in a u4
a61af66fc99e Initial load duke parents: diff changeset	1468 if (dump_len > (jlong)(4L*(jlong)G)) {
a61af66fc99e Initial load duke parents: diff changeset	1469 warning("record is too large");
a61af66fc99e Initial load duke parents: diff changeset	1470 }
a61af66fc99e Initial load duke parents: diff changeset	1471
a61af66fc99e Initial load duke parents: diff changeset	1472 // seek to the dump start and fix-up the length
a61af66fc99e Initial load duke parents: diff changeset	1473 writer()->seek_to_offset(dump_start());
a61af66fc99e Initial load duke parents: diff changeset	1474 writer()->write_u4((u4)dump_len);
a61af66fc99e Initial load duke parents: diff changeset	1475
a61af66fc99e Initial load duke parents: diff changeset	1476 // adjust the total size written to keep the bytes written correct.
a61af66fc99e Initial load duke parents: diff changeset	1477 writer()->adjust_bytes_written(-((long) sizeof(u4)));
a61af66fc99e Initial load duke parents: diff changeset	1478
a61af66fc99e Initial load duke parents: diff changeset	1479 // seek to dump end so we can continue
a61af66fc99e Initial load duke parents: diff changeset	1480 writer()->seek_to_offset(dump_end);
a61af66fc99e Initial load duke parents: diff changeset	1481
a61af66fc99e Initial load duke parents: diff changeset	1482 // no current dump record
a61af66fc99e Initial load duke parents: diff changeset	1483 set_dump_start((jlong)-1);
a61af66fc99e Initial load duke parents: diff changeset	1484 }
a61af66fc99e Initial load duke parents: diff changeset	1485 }
a61af66fc99e Initial load duke parents: diff changeset	1486
a61af66fc99e Initial load duke parents: diff changeset	1487 // used on a sub-record boundary to check if we need to start a
a61af66fc99e Initial load duke parents: diff changeset	1488 // new segment.
a61af66fc99e Initial load duke parents: diff changeset	1489 void VM_HeapDumper::check_segment_length() {
a61af66fc99e Initial load duke parents: diff changeset	1490 if (writer()->is_open()) {
a61af66fc99e Initial load duke parents: diff changeset	1491 if (is_segmented_dump()) {
a61af66fc99e Initial load duke parents: diff changeset	1492 // don't use current_offset that would be too expensive on a per record basis
a61af66fc99e Initial load duke parents: diff changeset	1493 jlong dump_end = writer()->bytes_written() + writer()->bytes_unwritten();
a61af66fc99e Initial load duke parents: diff changeset	1494 assert(dump_end == writer()->current_offset(), "checking");
a61af66fc99e Initial load duke parents: diff changeset	1495 jlong dump_len = (dump_end - dump_start() - 4);
a61af66fc99e Initial load duke parents: diff changeset	1496 assert(dump_len >= 0 && dump_len <= max_juint, "bad dump length");
a61af66fc99e Initial load duke parents: diff changeset	1497
a61af66fc99e Initial load duke parents: diff changeset	1498 if (dump_len > (jlong)HeapDumpSegmentSize) {
a61af66fc99e Initial load duke parents: diff changeset	1499 write_current_dump_record_length();
a61af66fc99e Initial load duke parents: diff changeset	1500 write_dump_header();
a61af66fc99e Initial load duke parents: diff changeset	1501 }
a61af66fc99e Initial load duke parents: diff changeset	1502 }
a61af66fc99e Initial load duke parents: diff changeset	1503 }
a61af66fc99e Initial load duke parents: diff changeset	1504 }
a61af66fc99e Initial load duke parents: diff changeset	1505
a61af66fc99e Initial load duke parents: diff changeset	1506 // fixes up the current dump record )and writes HPROF_HEAP_DUMP_END
a61af66fc99e Initial load duke parents: diff changeset	1507 // record in the case of a segmented heap dump)
a61af66fc99e Initial load duke parents: diff changeset	1508 void VM_HeapDumper::end_of_dump() {
a61af66fc99e Initial load duke parents: diff changeset	1509 if (writer()->is_open()) {
a61af66fc99e Initial load duke parents: diff changeset	1510 write_current_dump_record_length();
a61af66fc99e Initial load duke parents: diff changeset	1511
a61af66fc99e Initial load duke parents: diff changeset	1512 // for segmented dump we write the end record
a61af66fc99e Initial load duke parents: diff changeset	1513 if (is_segmented_dump()) {
a61af66fc99e Initial load duke parents: diff changeset	1514 writer()->write_u1(HPROF_HEAP_DUMP_END);
a61af66fc99e Initial load duke parents: diff changeset	1515 writer()->write_u4(0);
a61af66fc99e Initial load duke parents: diff changeset	1516 writer()->write_u4(0);
a61af66fc99e Initial load duke parents: diff changeset	1517 }
a61af66fc99e Initial load duke parents: diff changeset	1518 }
a61af66fc99e Initial load duke parents: diff changeset	1519 }
a61af66fc99e Initial load duke parents: diff changeset	1520
a61af66fc99e Initial load duke parents: diff changeset	1521 // marks sub-record boundary
a61af66fc99e Initial load duke parents: diff changeset	1522 void HeapObjectDumper::mark_end_of_record() {
a61af66fc99e Initial load duke parents: diff changeset	1523 dumper()->check_segment_length();
a61af66fc99e Initial load duke parents: diff changeset	1524 }
a61af66fc99e Initial load duke parents: diff changeset	1525
a61af66fc99e Initial load duke parents: diff changeset	1526 // writes a HPROF_LOAD_CLASS record for the class (and each of its
a61af66fc99e Initial load duke parents: diff changeset	1527 // array classes)
a61af66fc99e Initial load duke parents: diff changeset	1528 void VM_HeapDumper::do_load_class(klassOop k) {
a61af66fc99e Initial load duke parents: diff changeset	1529 static u4 class_serial_num = 0;
a61af66fc99e Initial load duke parents: diff changeset	1530
a61af66fc99e Initial load duke parents: diff changeset	1531 // len of HPROF_LOAD_CLASS record
a61af66fc99e Initial load duke parents: diff changeset	1532 u4 remaining = 2oopSize + 2sizeof(u4);
a61af66fc99e Initial load duke parents: diff changeset	1533
a61af66fc99e Initial load duke parents: diff changeset	1534 // write a HPROF_LOAD_CLASS for the class and each array class
a61af66fc99e Initial load duke parents: diff changeset	1535 do {
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1536 DumperSupport::write_header(writer(), HPROF_LOAD_CLASS, remaining);
0 a61af66fc99e Initial load duke parents: diff changeset	1537
a61af66fc99e Initial load duke parents: diff changeset	1538 // class serial number is just a number
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1539 writer()->write_u4(++class_serial_num);
0 a61af66fc99e Initial load duke parents: diff changeset	1540
a61af66fc99e Initial load duke parents: diff changeset	1541 // class ID
a61af66fc99e Initial load duke parents: diff changeset	1542 Klass* klass = Klass::cast(k);
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1543 writer()->write_classID(klass);
0 a61af66fc99e Initial load duke parents: diff changeset	1544
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1545 // add the klassOop and class serial number pair
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1546 dumper()->add_class_serial_number(klass, class_serial_num);
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1547
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1548 writer()->write_u4(STACK_TRACE_ID);
0 a61af66fc99e Initial load duke parents: diff changeset	1549
a61af66fc99e Initial load duke parents: diff changeset	1550 // class name ID
a61af66fc99e Initial load duke parents: diff changeset	1551 symbolOop name = klass->name();
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1552 writer()->write_objectID(name);
0 a61af66fc99e Initial load duke parents: diff changeset	1553
a61af66fc99e Initial load duke parents: diff changeset	1554 // write a LOAD_CLASS record for the array type (if it exists)
a61af66fc99e Initial load duke parents: diff changeset	1555 k = klass->array_klass_or_null();
a61af66fc99e Initial load duke parents: diff changeset	1556 } while (k != NULL);
a61af66fc99e Initial load duke parents: diff changeset	1557 }
a61af66fc99e Initial load duke parents: diff changeset	1558
a61af66fc99e Initial load duke parents: diff changeset	1559 // writes a HPROF_GC_CLASS_DUMP record for the given class
a61af66fc99e Initial load duke parents: diff changeset	1560 void VM_HeapDumper::do_class_dump(klassOop k) {
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1561 DumperSupport::dump_class_and_array_classes(writer(), k);
0 a61af66fc99e Initial load duke parents: diff changeset	1562 }
a61af66fc99e Initial load duke parents: diff changeset	1563
a61af66fc99e Initial load duke parents: diff changeset	1564 // writes a HPROF_GC_CLASS_DUMP records for a given basic type
a61af66fc99e Initial load duke parents: diff changeset	1565 // array (and each multi-dimensional array too)
a61af66fc99e Initial load duke parents: diff changeset	1566 void VM_HeapDumper::do_basic_type_array_class_dump(klassOop k) {
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1567 DumperSupport::dump_basic_type_array_class(writer(), k);
0 a61af66fc99e Initial load duke parents: diff changeset	1568 }
a61af66fc99e Initial load duke parents: diff changeset	1569
a61af66fc99e Initial load duke parents: diff changeset	1570 // Walk the stack of the given thread.
a61af66fc99e Initial load duke parents: diff changeset	1571 // Dumps a HPROF_GC_ROOT_JAVA_FRAME record for each local
a61af66fc99e Initial load duke parents: diff changeset	1572 // Dumps a HPROF_GC_ROOT_JNI_LOCAL record for each JNI local
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1573 //
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1574 // It returns the number of Java frames in this thread stack
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1575 int VM_HeapDumper::do_thread(JavaThread* java_thread, u4 thread_serial_num) {
0 a61af66fc99e Initial load duke parents: diff changeset	1576 JNILocalsDumper blk(writer(), thread_serial_num);
a61af66fc99e Initial load duke parents: diff changeset	1577
a61af66fc99e Initial load duke parents: diff changeset	1578 oop threadObj = java_thread->threadObj();
a61af66fc99e Initial load duke parents: diff changeset	1579 assert(threadObj != NULL, "sanity check");
a61af66fc99e Initial load duke parents: diff changeset	1580
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1581 int stack_depth = 0;
0 a61af66fc99e Initial load duke parents: diff changeset	1582 if (java_thread->has_last_Java_frame()) {
a61af66fc99e Initial load duke parents: diff changeset	1583
a61af66fc99e Initial load duke parents: diff changeset	1584 // vframes are resource allocated
a61af66fc99e Initial load duke parents: diff changeset	1585 Thread* current_thread = Thread::current();
a61af66fc99e Initial load duke parents: diff changeset	1586 ResourceMark rm(current_thread);
a61af66fc99e Initial load duke parents: diff changeset	1587 HandleMark hm(current_thread);
a61af66fc99e Initial load duke parents: diff changeset	1588
a61af66fc99e Initial load duke parents: diff changeset	1589 RegisterMap reg_map(java_thread);
a61af66fc99e Initial load duke parents: diff changeset	1590 frame f = java_thread->last_frame();
a61af66fc99e Initial load duke parents: diff changeset	1591 vframe* vf = vframe::new_vframe(&f, &reg_map, java_thread);
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1592 frame* last_entry_frame = NULL;
1775 30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1593 int extra_frames = 0;
0 a61af66fc99e Initial load duke parents: diff changeset	1594
1775 30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1595 if (java_thread == _oome_thread && _oome_constructor != NULL) {
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1596 extra_frames++;
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1597 }
0 a61af66fc99e Initial load duke parents: diff changeset	1598 while (vf != NULL) {
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1599 blk.set_frame_number(stack_depth);
0 a61af66fc99e Initial load duke parents: diff changeset	1600 if (vf->is_java_frame()) {
a61af66fc99e Initial load duke parents: diff changeset	1601
a61af66fc99e Initial load duke parents: diff changeset	1602 // java frame (interpreted, compiled, ...)
a61af66fc99e Initial load duke parents: diff changeset	1603 javaVFrame *jvf = javaVFrame::cast(vf);
a61af66fc99e Initial load duke parents: diff changeset	1604 if (!(jvf->method()->is_native())) {
a61af66fc99e Initial load duke parents: diff changeset	1605 StackValueCollection* locals = jvf->locals();
a61af66fc99e Initial load duke parents: diff changeset	1606 for (int slot=0; slot<locals->size(); slot++) {
a61af66fc99e Initial load duke parents: diff changeset	1607 if (locals->at(slot)->type() == T_OBJECT) {
a61af66fc99e Initial load duke parents: diff changeset	1608 oop o = locals->obj_at(slot)();
a61af66fc99e Initial load duke parents: diff changeset	1609
a61af66fc99e Initial load duke parents: diff changeset	1610 if (o != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	1611 writer()->write_u1(HPROF_GC_ROOT_JAVA_FRAME);
a61af66fc99e Initial load duke parents: diff changeset	1612 writer()->write_objectID(o);
a61af66fc99e Initial load duke parents: diff changeset	1613 writer()->write_u4(thread_serial_num);
1775 30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1614 writer()->write_u4((u4) (stack_depth + extra_frames));
0 a61af66fc99e Initial load duke parents: diff changeset	1615 }
a61af66fc99e Initial load duke parents: diff changeset	1616 }
a61af66fc99e Initial load duke parents: diff changeset	1617 }
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1618 } else {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1619 // native frame
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1620 if (stack_depth == 0) {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1621 // JNI locals for the top frame.
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1622 java_thread->active_handles()->oops_do(&blk);
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1623 } else {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1624 if (last_entry_frame != NULL) {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1625 // JNI locals for the entry frame
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1626 assert(last_entry_frame->is_entry_frame(), "checking");
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1627 last_entry_frame->entry_frame_call_wrapper()->handles()->oops_do(&blk);
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1628 }
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1629 }
0 a61af66fc99e Initial load duke parents: diff changeset	1630 }
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1631 // increment only for Java frames
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1632 stack_depth++;
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1633 last_entry_frame = NULL;
0 a61af66fc99e Initial load duke parents: diff changeset	1634
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1635 } else {
0 a61af66fc99e Initial load duke parents: diff changeset	1636 // externalVFrame - if it's an entry frame then report any JNI locals
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1637 // as roots when we find the corresponding native javaVFrame
0 a61af66fc99e Initial load duke parents: diff changeset	1638 frame* fr = vf->frame_pointer();
a61af66fc99e Initial load duke parents: diff changeset	1639 assert(fr != NULL, "sanity check");
a61af66fc99e Initial load duke parents: diff changeset	1640 if (fr->is_entry_frame()) {
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1641 last_entry_frame = fr;
0 a61af66fc99e Initial load duke parents: diff changeset	1642 }
a61af66fc99e Initial load duke parents: diff changeset	1643 }
a61af66fc99e Initial load duke parents: diff changeset	1644 vf = vf->sender();
a61af66fc99e Initial load duke parents: diff changeset	1645 }
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1646 } else {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1647 // no last java frame but there may be JNI locals
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1648 java_thread->active_handles()->oops_do(&blk);
0 a61af66fc99e Initial load duke parents: diff changeset	1649 }
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1650 return stack_depth;
0 a61af66fc99e Initial load duke parents: diff changeset	1651 }
a61af66fc99e Initial load duke parents: diff changeset	1652
a61af66fc99e Initial load duke parents: diff changeset	1653
a61af66fc99e Initial load duke parents: diff changeset	1654 // write a HPROF_GC_ROOT_THREAD_OBJ record for each java thread. Then walk
a61af66fc99e Initial load duke parents: diff changeset	1655 // the stack so that locals and JNI locals are dumped.
a61af66fc99e Initial load duke parents: diff changeset	1656 void VM_HeapDumper::do_threads() {
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1657 for (int i=0; i < _num_threads; i++) {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1658 JavaThread* thread = _stack_traces[i]->thread();
0 a61af66fc99e Initial load duke parents: diff changeset	1659 oop threadObj = thread->threadObj();
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1660 u4 thread_serial_num = i+1;
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1661 u4 stack_serial_num = thread_serial_num + STACK_TRACE_ID;
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1662 writer()->write_u1(HPROF_GC_ROOT_THREAD_OBJ);
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1663 writer()->write_objectID(threadObj);
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1664 writer()->write_u4(thread_serial_num); // thread number
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1665 writer()->write_u4(stack_serial_num); // stack trace serial number
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1666 int num_frames = do_thread(thread, thread_serial_num);
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1667 assert(num_frames == _stack_traces[i]->get_stack_depth(),
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1668 "total number of Java frames not matched");
0 a61af66fc99e Initial load duke parents: diff changeset	1669 }
a61af66fc99e Initial load duke parents: diff changeset	1670 }
a61af66fc99e Initial load duke parents: diff changeset	1671
a61af66fc99e Initial load duke parents: diff changeset	1672
a61af66fc99e Initial load duke parents: diff changeset	1673 // The VM operation that dumps the heap. The dump consists of the following
a61af66fc99e Initial load duke parents: diff changeset	1674 // records:
a61af66fc99e Initial load duke parents: diff changeset	1675 //
a61af66fc99e Initial load duke parents: diff changeset	1676 // HPROF_HEADER
a61af66fc99e Initial load duke parents: diff changeset	1677 // [HPROF_UTF8]*
a61af66fc99e Initial load duke parents: diff changeset	1678 // [HPROF_LOAD_CLASS]*
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1679 // [[HPROF_FRAME]\|HPROF_TRACE]
0 a61af66fc99e Initial load duke parents: diff changeset	1680 // [HPROF_GC_CLASS_DUMP]*
a61af66fc99e Initial load duke parents: diff changeset	1681 // HPROF_HEAP_DUMP
a61af66fc99e Initial load duke parents: diff changeset	1682 //
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1683 // The HPROF_TRACE records represent the stack traces where the heap dump
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1684 // is generated and a "dummy trace" record which does not include
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1685 // any frames. The dummy trace record is used to be referenced as the
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1686 // unknown object alloc site.
0 a61af66fc99e Initial load duke parents: diff changeset	1687 //
a61af66fc99e Initial load duke parents: diff changeset	1688 // The HPROF_HEAP_DUMP record has a length following by sub-records. To allow
a61af66fc99e Initial load duke parents: diff changeset	1689 // the heap dump be generated in a single pass we remember the position of
a61af66fc99e Initial load duke parents: diff changeset	1690 // the dump length and fix it up after all sub-records have been written.
a61af66fc99e Initial load duke parents: diff changeset	1691 // To generate the sub-records we iterate over the heap, writing
a61af66fc99e Initial load duke parents: diff changeset	1692 // HPROF_GC_INSTANCE_DUMP, HPROF_GC_OBJ_ARRAY_DUMP, and HPROF_GC_PRIM_ARRAY_DUMP
a61af66fc99e Initial load duke parents: diff changeset	1693 // records as we go. Once that is done we write records for some of the GC
a61af66fc99e Initial load duke parents: diff changeset	1694 // roots.
a61af66fc99e Initial load duke parents: diff changeset	1695
a61af66fc99e Initial load duke parents: diff changeset	1696 void VM_HeapDumper::doit() {
a61af66fc99e Initial load duke parents: diff changeset	1697
a61af66fc99e Initial load duke parents: diff changeset	1698 HandleMark hm;
a61af66fc99e Initial load duke parents: diff changeset	1699 CollectedHeap* ch = Universe::heap();
a61af66fc99e Initial load duke parents: diff changeset	1700 if (_gc_before_heap_dump) {
a61af66fc99e Initial load duke parents: diff changeset	1701 ch->collect_as_vm_thread(GCCause::_heap_dump);
a61af66fc99e Initial load duke parents: diff changeset	1702 } else {
a61af66fc99e Initial load duke parents: diff changeset	1703 // make the heap parsable (no need to retire TLABs)
a61af66fc99e Initial load duke parents: diff changeset	1704 ch->ensure_parsability(false);
a61af66fc99e Initial load duke parents: diff changeset	1705 }
a61af66fc99e Initial load duke parents: diff changeset	1706
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1707 // At this point we should be the only dumper active, so
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1708 // the following should be safe.
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1709 set_global_dumper();
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1710 set_global_writer();
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1711
0 a61af66fc99e Initial load duke parents: diff changeset	1712 // Write the file header - use 1.0.2 for large heaps, otherwise 1.0.1
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	1713 size_t used = ch->used();
0 a61af66fc99e Initial load duke parents: diff changeset	1714 const char* header;
a61af66fc99e Initial load duke parents: diff changeset	1715 if (used > (size_t)SegmentedHeapDumpThreshold) {
a61af66fc99e Initial load duke parents: diff changeset	1716 set_segmented_dump();
a61af66fc99e Initial load duke parents: diff changeset	1717 header = "JAVA PROFILE 1.0.2";
a61af66fc99e Initial load duke parents: diff changeset	1718 } else {
a61af66fc99e Initial load duke parents: diff changeset	1719 header = "JAVA PROFILE 1.0.1";
a61af66fc99e Initial load duke parents: diff changeset	1720 }
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1721
0 a61af66fc99e Initial load duke parents: diff changeset	1722 // header is few bytes long - no chance to overflow int
a61af66fc99e Initial load duke parents: diff changeset	1723 writer()->write_raw((void*)header, (int)strlen(header));
a61af66fc99e Initial load duke parents: diff changeset	1724 writer()->write_u1(0); // terminator
a61af66fc99e Initial load duke parents: diff changeset	1725 writer()->write_u4(oopSize);
a61af66fc99e Initial load duke parents: diff changeset	1726 writer()->write_u8(os::javaTimeMillis());
a61af66fc99e Initial load duke parents: diff changeset	1727
a61af66fc99e Initial load duke parents: diff changeset	1728 // HPROF_UTF8 records
a61af66fc99e Initial load duke parents: diff changeset	1729 SymbolTableDumper sym_dumper(writer());
a61af66fc99e Initial load duke parents: diff changeset	1730 SymbolTable::oops_do(&sym_dumper);
a61af66fc99e Initial load duke parents: diff changeset	1731
a61af66fc99e Initial load duke parents: diff changeset	1732 // write HPROF_LOAD_CLASS records
a61af66fc99e Initial load duke parents: diff changeset	1733 SystemDictionary::classes_do(&do_load_class);
a61af66fc99e Initial load duke parents: diff changeset	1734 Universe::basic_type_classes_do(&do_load_class);
a61af66fc99e Initial load duke parents: diff changeset	1735
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1736 // write HPROF_FRAME and HPROF_TRACE records
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1737 // this must be called after _klass_map is built when iterating the classes above.
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1738 dump_stack_traces();
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1739
0 a61af66fc99e Initial load duke parents: diff changeset	1740 // write HPROF_HEAP_DUMP or HPROF_HEAP_DUMP_SEGMENT
a61af66fc99e Initial load duke parents: diff changeset	1741 write_dump_header();
a61af66fc99e Initial load duke parents: diff changeset	1742
a61af66fc99e Initial load duke parents: diff changeset	1743 // Writes HPROF_GC_CLASS_DUMP records
a61af66fc99e Initial load duke parents: diff changeset	1744 SystemDictionary::classes_do(&do_class_dump);
a61af66fc99e Initial load duke parents: diff changeset	1745 Universe::basic_type_classes_do(&do_basic_type_array_class_dump);
a61af66fc99e Initial load duke parents: diff changeset	1746 check_segment_length();
a61af66fc99e Initial load duke parents: diff changeset	1747
a61af66fc99e Initial load duke parents: diff changeset	1748 // writes HPROF_GC_INSTANCE_DUMP records.
a61af66fc99e Initial load duke parents: diff changeset	1749 // After each sub-record is written check_segment_length will be invoked. When
a61af66fc99e Initial load duke parents: diff changeset	1750 // generated a segmented heap dump this allows us to check if the current
a61af66fc99e Initial load duke parents: diff changeset	1751 // segment exceeds a threshold and if so, then a new segment is started.
a61af66fc99e Initial load duke parents: diff changeset	1752 // The HPROF_GC_CLASS_DUMP and HPROF_GC_INSTANCE_DUMP are the vast bulk
a61af66fc99e Initial load duke parents: diff changeset	1753 // of the heap dump.
a61af66fc99e Initial load duke parents: diff changeset	1754 HeapObjectDumper obj_dumper(this, writer());
517 e9be0e04635a 6689653: JMapPerm fails with UseConcMarkSweepIncGC and compressed oops off jmasa parents: 396 diff changeset	1755 Universe::heap()->safe_object_iterate(&obj_dumper);
0 a61af66fc99e Initial load duke parents: diff changeset	1756
a61af66fc99e Initial load duke parents: diff changeset	1757 // HPROF_GC_ROOT_THREAD_OBJ + frames + jni locals
a61af66fc99e Initial load duke parents: diff changeset	1758 do_threads();
a61af66fc99e Initial load duke parents: diff changeset	1759 check_segment_length();
a61af66fc99e Initial load duke parents: diff changeset	1760
a61af66fc99e Initial load duke parents: diff changeset	1761 // HPROF_GC_ROOT_MONITOR_USED
a61af66fc99e Initial load duke parents: diff changeset	1762 MonitorUsedDumper mon_dumper(writer());
a61af66fc99e Initial load duke parents: diff changeset	1763 ObjectSynchronizer::oops_do(&mon_dumper);
a61af66fc99e Initial load duke parents: diff changeset	1764 check_segment_length();
a61af66fc99e Initial load duke parents: diff changeset	1765
a61af66fc99e Initial load duke parents: diff changeset	1766 // HPROF_GC_ROOT_JNI_GLOBAL
a61af66fc99e Initial load duke parents: diff changeset	1767 JNIGlobalsDumper jni_dumper(writer());
a61af66fc99e Initial load duke parents: diff changeset	1768 JNIHandles::oops_do(&jni_dumper);
a61af66fc99e Initial load duke parents: diff changeset	1769 check_segment_length();
a61af66fc99e Initial load duke parents: diff changeset	1770
a61af66fc99e Initial load duke parents: diff changeset	1771 // HPROF_GC_ROOT_STICKY_CLASS
a61af66fc99e Initial load duke parents: diff changeset	1772 StickyClassDumper class_dumper(writer());
a61af66fc99e Initial load duke parents: diff changeset	1773 SystemDictionary::always_strong_oops_do(&class_dumper);
a61af66fc99e Initial load duke parents: diff changeset	1774
a61af66fc99e Initial load duke parents: diff changeset	1775 // fixes up the length of the dump record. In the case of a segmented
a61af66fc99e Initial load duke parents: diff changeset	1776 // heap then the HPROF_HEAP_DUMP_END record is also written.
a61af66fc99e Initial load duke parents: diff changeset	1777 end_of_dump();
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1778
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1779 // Now we clear the global variables, so that a future dumper might run.
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1780 clear_global_dumper();
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1781 clear_global_writer();
0 a61af66fc99e Initial load duke parents: diff changeset	1782 }
a61af66fc99e Initial load duke parents: diff changeset	1783
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1784 void VM_HeapDumper::dump_stack_traces() {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1785 // write a HPROF_TRACE record without any frames to be referenced as object alloc sites
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1786 DumperSupport::write_header(writer(), HPROF_TRACE, 3*sizeof(u4));
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1787 writer()->write_u4((u4) STACK_TRACE_ID);
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1788 writer()->write_u4(0); // thread number
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1789 writer()->write_u4(0); // frame count
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1790
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1791 _stack_traces = NEW_C_HEAP_ARRAY(ThreadStackTrace*, Threads::number_of_threads());
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1792 int frame_serial_num = 0;
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1793 for (JavaThread* thread = Threads::first(); thread != NULL ; thread = thread->next()) {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1794 oop threadObj = thread->threadObj();
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1795 if (threadObj != NULL && !thread->is_exiting() && !thread->is_hidden_from_external_view()) {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1796 // dump thread stack trace
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1797 ThreadStackTrace* stack_trace = new ThreadStackTrace(thread, false);
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1798 stack_trace->dump_stack_at_safepoint(-1);
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1799 _stack_traces[_num_threads++] = stack_trace;
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1800
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1801 // write HPROF_FRAME records for this thread's stack trace
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1802 int depth = stack_trace->get_stack_depth();
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1803 int thread_frame_start = frame_serial_num;
1775 30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1804 int extra_frames = 0;
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1805 // write fake frame that makes it look like the thread, which caused OOME,
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1806 // is in the OutOfMemoryError zero-parameter constructor
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1807 if (thread == _oome_thread && _oome_constructor != NULL) {
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1808 int oome_serial_num = _klass_map->find(Klass::cast(_oome_constructor->method_holder()));
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1809 // the class serial number starts from 1
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1810 assert(oome_serial_num > 0, "OutOfMemoryError class not found");
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1811 DumperSupport::dump_stack_frame(writer(), ++frame_serial_num, oome_serial_num,
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1812 _oome_constructor, 0);
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1813 extra_frames++;
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1814 }
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1815 for (int j=0; j < depth; j++) {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1816 StackFrameInfo* frame = stack_trace->stack_frame_at(j);
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1817 methodOop m = frame->method();
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1818 int class_serial_num = _klass_map->find(Klass::cast(m->method_holder()));
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1819 // the class serial number starts from 1
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1820 assert(class_serial_num > 0, "class not found");
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1821 DumperSupport::dump_stack_frame(writer(), ++frame_serial_num, class_serial_num, m, frame->bci());
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1822 }
1775 30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1823 depth += extra_frames;
396 4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1824
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1825 // write HPROF_TRACE record for one thread
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1826 DumperSupport::write_header(writer(), HPROF_TRACE, 3sizeof(u4) + depthoopSize);
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1827 int stack_serial_num = _num_threads + STACK_TRACE_ID;
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1828 writer()->write_u4(stack_serial_num); // stack trace serial number
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1829 writer()->write_u4((u4) _num_threads); // thread serial number
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1830 writer()->write_u4(depth); // frame count
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1831 for (int j=1; j <= depth; j++) {
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1832 writer()->write_id(thread_frame_start + j);
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1833 }
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1834 }
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1835 }
4d05b7cb7842 6306922: Dump dump created by +HeapDumpOnOutOfMemoryError should include stack traces for stack roots mchung parents: 356 diff changeset	1836 }
0 a61af66fc99e Initial load duke parents: diff changeset	1837
a61af66fc99e Initial load duke parents: diff changeset	1838 // dump the heap to given path.
a61af66fc99e Initial load duke parents: diff changeset	1839 int HeapDumper::dump(const char* path) {
a61af66fc99e Initial load duke parents: diff changeset	1840 assert(path != NULL && strlen(path) > 0, "path missing");
a61af66fc99e Initial load duke parents: diff changeset	1841
a61af66fc99e Initial load duke parents: diff changeset	1842 // print message in interactive case
a61af66fc99e Initial load duke parents: diff changeset	1843 if (print_to_tty()) {
a61af66fc99e Initial load duke parents: diff changeset	1844 tty->print_cr("Dumping heap to %s ...", path);
a61af66fc99e Initial load duke parents: diff changeset	1845 timer()->start();
a61af66fc99e Initial load duke parents: diff changeset	1846 }
a61af66fc99e Initial load duke parents: diff changeset	1847
a61af66fc99e Initial load duke parents: diff changeset	1848 // create the dump writer. If the file can be opened then bail
a61af66fc99e Initial load duke parents: diff changeset	1849 DumpWriter writer(path);
a61af66fc99e Initial load duke parents: diff changeset	1850 if (!writer.is_open()) {
a61af66fc99e Initial load duke parents: diff changeset	1851 set_error(writer.error());
a61af66fc99e Initial load duke parents: diff changeset	1852 if (print_to_tty()) {
a61af66fc99e Initial load duke parents: diff changeset	1853 tty->print_cr("Unable to create %s: %s", path,
a61af66fc99e Initial load duke parents: diff changeset	1854 (error() != NULL) ? error() : "reason unknown");
a61af66fc99e Initial load duke parents: diff changeset	1855 }
a61af66fc99e Initial load duke parents: diff changeset	1856 return -1;
a61af66fc99e Initial load duke parents: diff changeset	1857 }
a61af66fc99e Initial load duke parents: diff changeset	1858
a61af66fc99e Initial load duke parents: diff changeset	1859 // generate the dump
1775 30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1860 VM_HeapDumper dumper(&writer, _gc_before_heap_dump, _oome);
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1861 if (Thread::current()->is_VM_thread()) {
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1862 assert(SafepointSynchronize::is_at_safepoint(), "Expected to be called at a safepoint");
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1863 dumper.doit();
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1864 } else {
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1865 VMThread::execute(&dumper);
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1866 }
0 a61af66fc99e Initial load duke parents: diff changeset	1867
a61af66fc99e Initial load duke parents: diff changeset	1868 // close dump file and record any error that the writer may have encountered
a61af66fc99e Initial load duke parents: diff changeset	1869 writer.close();
a61af66fc99e Initial load duke parents: diff changeset	1870 set_error(writer.error());
a61af66fc99e Initial load duke parents: diff changeset	1871
a61af66fc99e Initial load duke parents: diff changeset	1872 // print message in interactive case
a61af66fc99e Initial load duke parents: diff changeset	1873 if (print_to_tty()) {
a61af66fc99e Initial load duke parents: diff changeset	1874 timer()->stop();
a61af66fc99e Initial load duke parents: diff changeset	1875 if (error() == NULL) {
a61af66fc99e Initial load duke parents: diff changeset	1876 char msg[256];
a61af66fc99e Initial load duke parents: diff changeset	1877 sprintf(msg, "Heap dump file created [%s bytes in %3.3f secs]",
a61af66fc99e Initial load duke parents: diff changeset	1878 os::jlong_format_specifier(), timer()->seconds());
a61af66fc99e Initial load duke parents: diff changeset	1879 tty->print_cr(msg, writer.bytes_written());
a61af66fc99e Initial load duke parents: diff changeset	1880 } else {
a61af66fc99e Initial load duke parents: diff changeset	1881 tty->print_cr("Dump file is incomplete: %s", writer.error());
a61af66fc99e Initial load duke parents: diff changeset	1882 }
a61af66fc99e Initial load duke parents: diff changeset	1883 }
a61af66fc99e Initial load duke parents: diff changeset	1884
a61af66fc99e Initial load duke parents: diff changeset	1885 return (writer.error() == NULL) ? 0 : -1;
a61af66fc99e Initial load duke parents: diff changeset	1886 }
a61af66fc99e Initial load duke parents: diff changeset	1887
a61af66fc99e Initial load duke parents: diff changeset	1888 // stop timer (if still active), and free any error string we might be holding
a61af66fc99e Initial load duke parents: diff changeset	1889 HeapDumper::~HeapDumper() {
a61af66fc99e Initial load duke parents: diff changeset	1890 if (timer()->is_active()) {
a61af66fc99e Initial load duke parents: diff changeset	1891 timer()->stop();
a61af66fc99e Initial load duke parents: diff changeset	1892 }
a61af66fc99e Initial load duke parents: diff changeset	1893 set_error(NULL);
a61af66fc99e Initial load duke parents: diff changeset	1894 }
a61af66fc99e Initial load duke parents: diff changeset	1895
a61af66fc99e Initial load duke parents: diff changeset	1896
a61af66fc99e Initial load duke parents: diff changeset	1897 // returns the error string (resource allocated), or NULL
a61af66fc99e Initial load duke parents: diff changeset	1898 char* HeapDumper::error_as_C_string() const {
a61af66fc99e Initial load duke parents: diff changeset	1899 if (error() != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	1900 char* str = NEW_RESOURCE_ARRAY(char, strlen(error())+1);
a61af66fc99e Initial load duke parents: diff changeset	1901 strcpy(str, error());
a61af66fc99e Initial load duke parents: diff changeset	1902 return str;
a61af66fc99e Initial load duke parents: diff changeset	1903 } else {
a61af66fc99e Initial load duke parents: diff changeset	1904 return NULL;
a61af66fc99e Initial load duke parents: diff changeset	1905 }
a61af66fc99e Initial load duke parents: diff changeset	1906 }
a61af66fc99e Initial load duke parents: diff changeset	1907
a61af66fc99e Initial load duke parents: diff changeset	1908 // set the error string
a61af66fc99e Initial load duke parents: diff changeset	1909 void HeapDumper::set_error(char* error) {
a61af66fc99e Initial load duke parents: diff changeset	1910 if (_error != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	1911 os::free(_error);
a61af66fc99e Initial load duke parents: diff changeset	1912 }
a61af66fc99e Initial load duke parents: diff changeset	1913 if (error == NULL) {
a61af66fc99e Initial load duke parents: diff changeset	1914 _error = NULL;
a61af66fc99e Initial load duke parents: diff changeset	1915 } else {
a61af66fc99e Initial load duke parents: diff changeset	1916 _error = os::strdup(error);
a61af66fc99e Initial load duke parents: diff changeset	1917 assert(_error != NULL, "allocation failure");
a61af66fc99e Initial load duke parents: diff changeset	1918 }
a61af66fc99e Initial load duke parents: diff changeset	1919 }
a61af66fc99e Initial load duke parents: diff changeset	1920
1775 30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1921 // Called by out-of-memory error reporting by a single Java thread
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1922 // outside of a JVM safepoint
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1923 void HeapDumper::dump_heap_from_oome() {
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1924 HeapDumper::dump_heap(true);
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1925 }
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1926
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1927 // Called by error reporting by a single Java thread outside of a JVM safepoint,
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1928 // or by heap dumping by the VM thread during a (GC) safepoint. Thus, these various
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1929 // callers are strictly serialized and guaranteed not to interfere below. For more
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1930 // general use, however, this method will need modification to prevent
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1931 // inteference when updating the static variables base_path and dump_file_seq below.
0 a61af66fc99e Initial load duke parents: diff changeset	1932 void HeapDumper::dump_heap() {
1775 30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1933 HeapDumper::dump_heap(false);
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1934 }
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1935
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	1936 void HeapDumper::dump_heap(bool oome) {
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1937 static char base_path[JVM_MAXPATHLEN] = {'\0'};
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1938 static uint dump_file_seq = 0;
2143 17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1939 char* my_path;
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1940 const int max_digit_chars = 20;
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1941
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1942 const char* dump_file_name = "java_pid";
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1943 const char* dump_file_ext = ".hprof";
0 a61af66fc99e Initial load duke parents: diff changeset	1944
a61af66fc99e Initial load duke parents: diff changeset	1945 // The dump file defaults to java_pid<pid>.hprof in the current working
a61af66fc99e Initial load duke parents: diff changeset	1946 // directory. HeapDumpPath=<file> can be used to specify an alternative
a61af66fc99e Initial load duke parents: diff changeset	1947 // dump file name or a directory where dump file is created.
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1948 if (dump_file_seq == 0) { // first time in, we initialize base_path
2143 17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1949 // Calculate potentially longest base path and check if we have enough
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1950 // allocated statically.
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1951 const size_t total_length =
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1952 (HeapDumpPath == NULL ? 0 : strlen(HeapDumpPath)) +
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1953 strlen(os::file_separator()) + max_digit_chars +
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1954 strlen(dump_file_name) + strlen(dump_file_ext) + 1;
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1955 if (total_length > sizeof(base_path)) {
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1956 warning("Cannot create heap dump file. HeapDumpPath is too long.");
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1957 return;
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1958 }
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1959
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1960 bool use_default_filename = true;
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1961 if (HeapDumpPath == NULL \|\| HeapDumpPath[0] == '\0') {
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1962 // HeapDumpPath=<file> not specified
0 a61af66fc99e Initial load duke parents: diff changeset	1963 } else {
2143 17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1964 strncpy(base_path, HeapDumpPath, sizeof(base_path));
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1965 // check if the path is a directory (must exist)
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1966 DIR* dir = os::opendir(base_path);
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1967 if (dir == NULL) {
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1968 use_default_filename = false;
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1969 } else {
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1970 // HeapDumpPath specified a directory. We append a file separator
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1971 // (if needed).
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1972 os::closedir(dir);
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1973 size_t fs_len = strlen(os::file_separator());
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1974 if (strlen(base_path) >= fs_len) {
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1975 char* end = base_path;
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1976 end += (strlen(base_path) - fs_len);
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1977 if (strcmp(end, os::file_separator()) != 0) {
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1978 strcat(base_path, os::file_separator());
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1979 }
0 a61af66fc99e Initial load duke parents: diff changeset	1980 }
a61af66fc99e Initial load duke parents: diff changeset	1981 }
a61af66fc99e Initial load duke parents: diff changeset	1982 }
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1983 // If HeapDumpPath wasn't a file name then we append the default name
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1984 if (use_default_filename) {
2143 17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1985 const size_t dlen = strlen(base_path); // if heap dump dir specified
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1986 jio_snprintf(&base_path[dlen], sizeof(base_path)-dlen, "%s%d%s",
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1987 dump_file_name, os::current_process_id(), dump_file_ext);
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1988 }
2143 17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1989 const size_t len = strlen(base_path) + 1;
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1990 my_path = (char*)os::malloc(len);
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1991 if (my_path == NULL) {
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1992 warning("Cannot create heap dump file. Out of system memory.");
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1993 return;
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1994 }
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1995 strncpy(my_path, base_path, len);
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1996 } else {
c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	1997 // Append a sequence number id for dumps following the first
2143 17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1998 const size_t len = strlen(base_path) + max_digit_chars + 2; // for '.' and \0
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	1999 my_path = (char*)os::malloc(len);
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	2000 if (my_path == NULL) {
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	2001 warning("Cannot create heap dump file. Out of system memory.");
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	2002 return;
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	2003 }
17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	2004 jio_snprintf(my_path, len, "%s.%d", base_path, dump_file_seq);
0 a61af66fc99e Initial load duke parents: diff changeset	2005 }
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	2006 dump_file_seq++; // increment seq number for next time we dump
0 a61af66fc99e Initial load duke parents: diff changeset	2007
a61af66fc99e Initial load duke parents: diff changeset	2008 HeapDumper dumper(false /* no GC before heap dump */,
1775 30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	2009 true /* send to tty */,
30f67acf635d 6765718: Indicate which thread throwing OOME when generating the heap dump at OOME thurka parents: 1552 diff changeset	2010 oome /* pass along out-of-memory-error flag */);
615 c6c601a0f2d6 6797870: Add -XX:+{HeapDump,PrintClassHistogram}{Before,After}FullGC ysr parents: 517 diff changeset	2011 dumper.dump(my_path);
2143 17c778814856 6811367: Fix code in HeapDumper::dump_heap() to avoid buffer overrun coleenp parents: 1972 diff changeset	2012 os::free(my_path);
0 a61af66fc99e Initial load duke parents: diff changeset	2013 }

Mercurial > hg > truffle

annotate src/share/vm/services/heapDumper.cpp @ 2143:17c778814856