116 lines
3.7 KiB
C
Executable File
116 lines
3.7 KiB
C
Executable File
/*
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* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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/*
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* This header file defines the data structures sent by the VM
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* through the JVMTI CompiledMethodLoad callback function via the
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* "void * compile_info" parameter. The memory pointed to by the
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* compile_info parameter may not be referenced after returning from
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* the CompiledMethodLoad callback. These are VM implementation
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* specific data structures that may evolve in future releases. A
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* JVMTI agent should interpret a non-NULL compile_info as a pointer
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* to a region of memory containing a list of records. In a typical
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* usage scenario, a JVMTI agent would cast each record to a
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* jvmtiCompiledMethodLoadRecordHeader, a struct that represents
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* arbitrary information. This struct contains a kind field to indicate
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* the kind of information being passed, and a pointer to the next
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* record. If the kind field indicates inlining information, then the
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* agent would cast the record to a jvmtiCompiledMethodLoadInlineRecord.
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* This record contains an array of PCStackInfo structs, which indicate
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* for every pc address what are the methods on the invocation stack.
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* The "methods" and "bcis" fields in each PCStackInfo struct specify a
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* 1-1 mapping between these inlined methods and their bytecode indices.
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* This can be used to derive the proper source lines of the inlined
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* methods.
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*/
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#ifndef _JVMTI_CMLR_H_
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#define _JVMTI_CMLR_H_
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enum {
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JVMTI_CMLR_MAJOR_VERSION_1 = 0x00000001,
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JVMTI_CMLR_MINOR_VERSION_0 = 0x00000000,
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JVMTI_CMLR_MAJOR_VERSION = 0x00000001,
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JVMTI_CMLR_MINOR_VERSION = 0x00000000
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/*
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* This comment is for the "JDK import from HotSpot" sanity check:
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* version: 1.0.0
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*/
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};
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typedef enum {
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JVMTI_CMLR_DUMMY = 1,
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JVMTI_CMLR_INLINE_INFO = 2
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} jvmtiCMLRKind;
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/*
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* Record that represents arbitrary information passed through JVMTI
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* CompiledMethodLoadEvent void pointer.
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*/
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typedef struct _jvmtiCompiledMethodLoadRecordHeader {
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jvmtiCMLRKind kind; /* id for the kind of info passed in the record */
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jint majorinfoversion; /* major and minor info version values. Init'ed */
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jint minorinfoversion; /* to current version value in jvmtiExport.cpp. */
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struct _jvmtiCompiledMethodLoadRecordHeader* next;
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} jvmtiCompiledMethodLoadRecordHeader;
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/*
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* Record that gives information about the methods on the compile-time
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* stack at a specific pc address of a compiled method. Each element in
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* the methods array maps to same element in the bcis array.
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*/
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typedef struct _PCStackInfo {
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void* pc; /* the pc address for this compiled method */
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jint numstackframes; /* number of methods on the stack */
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jmethodID* methods; /* array of numstackframes method ids */
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jint* bcis; /* array of numstackframes bytecode indices */
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} PCStackInfo;
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/*
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* Record that contains inlining information for each pc address of
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* an nmethod.
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*/
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typedef struct _jvmtiCompiledMethodLoadInlineRecord {
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jvmtiCompiledMethodLoadRecordHeader header; /* common header for casting */
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jint numpcs; /* number of pc descriptors in this nmethod */
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PCStackInfo* pcinfo; /* array of numpcs pc descriptors */
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} jvmtiCompiledMethodLoadInlineRecord;
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/*
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* Dummy record used to test that we can pass records with different
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* information through the void pointer provided that they can be cast
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* to a jvmtiCompiledMethodLoadRecordHeader.
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*/
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typedef struct _jvmtiCompiledMethodLoadDummyRecord {
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jvmtiCompiledMethodLoadRecordHeader header; /* common header for casting */
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char message[50];
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} jvmtiCompiledMethodLoadDummyRecord;
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#endif
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