/* * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of Oracle nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef HPROF_B_SPEC_H #define HPROF_B_SPEC_H /* Hprof binary format enums and spec. */ /* Need to #define or typedef HprofId before including this file. * hprof used ObjectIndex or 4 bytes, but it can be 4 or 8 byte type. */ /* -------------------------------------------------------------------- */ /* -------------------------------------------------------------------- */ /* -------------------------------------------------------------------- */ /* * hprof binary format: (result either written to a file or sent over * the network). * * WARNING: This format is still under development, and is subject to * change without notice. * * header "JAVA PROFILE 1.0.1" or "JAVA PROFILE 1.0.2" (0-terminated) * u4 size of identifiers. Identifiers are used to represent * UTF8 strings, objects, stack traces, etc. They usually * have the same size as host pointers. For example, on * Solaris and Win32, the size is 4. * u4 high word * u4 low word number of milliseconds since 0:00 GMT, 1/1/70 * [record]* a sequence of records. */ /* * Record format: * * u1 a TAG denoting the type of the record * u4 number of *microseconds* since the time stamp in the * header. (wraps around in a little more than an hour) * u4 number of bytes *remaining* in the record. Note that * this number excludes the tag and the length field itself. * [u1]* BODY of the record (a sequence of bytes) */ /* * The following TAGs are supported: * * TAG BODY notes *---------------------------------------------------------- * HPROF_UTF8 a UTF8-encoded name * * id name ID * [u1]* UTF8 characters (no trailing zero) * * HPROF_LOAD_CLASS a newly loaded class * * u4 class serial number (> 0) * id class object ID * u4 stack trace serial number * id class name ID * * HPROF_UNLOAD_CLASS an unloading class * * u4 class serial_number * * HPROF_FRAME a Java stack frame * * id stack frame ID * id method name ID * id method signature ID * id source file name ID * u4 class serial number * i4 line number. >0: normal * -1: unknown * -2: compiled method * -3: native method * * HPROF_TRACE a Java stack trace * * u4 stack trace serial number * u4 thread serial number * u4 number of frames * [id]* stack frame IDs * * * HPROF_ALLOC_SITES a set of heap allocation sites, obtained after GC * * u2 flags 0x0001: incremental vs. complete * 0x0002: sorted by allocation vs. live * 0x0004: whether to force a GC * u4 cutoff ratio * u4 total live bytes * u4 total live instances * u8 total bytes allocated * u8 total instances allocated * u4 number of sites that follow * [u1 is_array: 0: normal object * 2: object array * 4: boolean array * 5: char array * 6: float array * 7: double array * 8: byte array * 9: short array * 10: int array * 11: long array * u4 class serial number (may be zero during startup) * u4 stack trace serial number * u4 number of bytes alive * u4 number of instances alive * u4 number of bytes allocated * u4]* number of instance allocated * * HPROF_START_THREAD a newly started thread. * * u4 thread serial number (> 0) * id thread object ID * u4 stack trace serial number * id thread name ID * id thread group name ID * id thread group parent name ID * * HPROF_END_THREAD a terminating thread. * * u4 thread serial number * * HPROF_HEAP_SUMMARY heap summary * * u4 total live bytes * u4 total live instances * u8 total bytes allocated * u8 total instances allocated * * HPROF_HEAP_DUMP or HPROF_HEAP_DUMP_SEGMENT denote a heap dump * * [heap dump sub-records]* * * There are four kinds of heap dump sub-records: * * u1 sub-record type * * HPROF_GC_ROOT_UNKNOWN unknown root * * id object ID * * HPROF_GC_ROOT_THREAD_OBJ thread object * * id thread object ID (may be 0 for a * thread newly attached through JNI) * u4 thread sequence number * u4 stack trace sequence number * * HPROF_GC_ROOT_JNI_GLOBAL JNI global ref root * * id object ID * id JNI global ref ID * * HPROF_GC_ROOT_JNI_LOCAL JNI local ref * * id object ID * u4 thread serial number * u4 frame # in stack trace (-1 for empty) * * HPROF_GC_ROOT_JAVA_FRAME Java stack frame * * id object ID * u4 thread serial number * u4 frame # in stack trace (-1 for empty) * * HPROF_GC_ROOT_NATIVE_STACK Native stack * * id object ID * u4 thread serial number * * HPROF_GC_ROOT_STICKY_CLASS System class * * id object ID * * HPROF_GC_ROOT_THREAD_BLOCK Reference from thread block * * id object ID * u4 thread serial number * * HPROF_GC_ROOT_MONITOR_USED Busy monitor * * id object ID * * HPROF_GC_CLASS_DUMP dump of a class object * * id class object ID * u4 stack trace serial number * id super class object ID * id class loader object ID * id signers object ID * id protection domain object ID * id reserved * id reserved * * u4 instance size (in bytes) * * u2 size of constant pool * [u2, constant pool index, * ty, type * 2: object * 4: boolean * 5: char * 6: float * 7: double * 8: byte * 9: short * 10: int * 11: long * vl]* and value * * u2 number of static fields * [id, static field name, * ty, type, * vl]* and value * * u2 number of inst. fields (not inc. super) * [id, instance field name, * ty]* type * * HPROF_GC_INSTANCE_DUMP dump of a normal object * * id object ID * u4 stack trace serial number * id class object ID * u4 number of bytes that follow * [vl]* instance field values (class, followed * by super, super's super ...) * * HPROF_GC_OBJ_ARRAY_DUMP dump of an object array * * id array object ID * u4 stack trace serial number * u4 number of elements * id array class ID * [id]* elements * * HPROF_GC_PRIM_ARRAY_DUMP dump of a primitive array * * id array object ID * u4 stack trace serial number * u4 number of elements * u1 element type * 4: boolean array * 5: char array * 6: float array * 7: double array * 8: byte array * 9: short array * 10: int array * 11: long array * [u1]* elements * * HPROF_HEAP_DUMP_END terminates series of heap dump segments * * HPROF_CPU_SAMPLES a set of sample traces of running threads * * u4 total number of samples * u4 # of traces * [u4 # of samples * u4]* stack trace serial number * * HPROF_CONTROL_SETTINGS the settings of on/off switches * * u4 0x00000001: alloc traces on/off * 0x00000002: cpu sampling on/off * u2 stack trace depth * */ typedef enum HprofTag { HPROF_UTF8 = 0x01, HPROF_LOAD_CLASS = 0x02, HPROF_UNLOAD_CLASS = 0x03, HPROF_FRAME = 0x04, HPROF_TRACE = 0x05, HPROF_ALLOC_SITES = 0x06, HPROF_HEAP_SUMMARY = 0x07, HPROF_START_THREAD = 0x0A, HPROF_END_THREAD = 0x0B, HPROF_HEAP_DUMP = 0x0C, HPROF_HEAP_DUMP_SEGMENT = 0x1C, /* 1.0.2 only */ HPROF_HEAP_DUMP_END = 0x2C, /* 1.0.2 only */ HPROF_CPU_SAMPLES = 0x0D, HPROF_CONTROL_SETTINGS = 0x0E } HprofTag; /* * Heap dump constants */ typedef enum HprofGcTag { HPROF_GC_ROOT_UNKNOWN = 0xFF, HPROF_GC_ROOT_JNI_GLOBAL = 0x01, HPROF_GC_ROOT_JNI_LOCAL = 0x02, HPROF_GC_ROOT_JAVA_FRAME = 0x03, HPROF_GC_ROOT_NATIVE_STACK = 0x04, HPROF_GC_ROOT_STICKY_CLASS = 0x05, HPROF_GC_ROOT_THREAD_BLOCK = 0x06, HPROF_GC_ROOT_MONITOR_USED = 0x07, HPROF_GC_ROOT_THREAD_OBJ = 0x08, HPROF_GC_CLASS_DUMP = 0x20, HPROF_GC_INSTANCE_DUMP = 0x21, HPROF_GC_OBJ_ARRAY_DUMP = 0x22, HPROF_GC_PRIM_ARRAY_DUMP = 0x23 } HprofGcTag; enum HprofType { HPROF_ARRAY_OBJECT = 1, HPROF_NORMAL_OBJECT = 2, HPROF_BOOLEAN = 4, HPROF_CHAR = 5, HPROF_FLOAT = 6, HPROF_DOUBLE = 7, HPROF_BYTE = 8, HPROF_SHORT = 9, HPROF_INT = 10, HPROF_LONG = 11 }; typedef unsigned char HprofType; #define HPROF_TYPE_SIZES \ { \ /*Object?*/ sizeof(HprofId), \ /*Object?*/ sizeof(HprofId), \ /*Array*/ sizeof(HprofId), \ /*Object?*/ sizeof(HprofId), \ /*jboolean*/ 1, \ /*jchar*/ 2, \ /*jfloat*/ 4, \ /*jdouble*/ 8, \ /*jbyte*/ 1, \ /*jshort*/ 2, \ /*jint*/ 4, \ /*jlong*/ 8 \ } #define HPROF_TYPE_IS_PRIMITIVE(ty) ((ty)>=HPROF_BOOLEAN) #endif