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| f7932f | 1 | /* |
| D | 2 | * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. |
| 3 | * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. | |
| 4 | * | |
| 5 | * | |
| 6 | * | |
| 7 | * | |
| 8 | * | |
| 9 | * | |
| 10 | * | |
| 11 | * | |
| 12 | * | |
| 13 | * | |
| 14 | * | |
| 15 | * | |
| 16 | * | |
| 17 | * | |
| 18 | * | |
| 19 | * | |
| 20 | * | |
| 21 | * | |
| 22 | * | |
| 23 | * | |
| 24 | */ | |
| 25 | ||
| 26 | /* | |
| 27 | * This header file defines the data structures sent by the VM | |
| 28 | * through the JVMTI CompiledMethodLoad callback function via the | |
| 29 | * "void * compile_info" parameter. The memory pointed to by the | |
| 30 | * compile_info parameter may not be referenced after returning from | |
| 31 | * the CompiledMethodLoad callback. These are VM implementation | |
| 32 | * specific data structures that may evolve in future releases. A | |
| 33 | * JVMTI agent should interpret a non-NULL compile_info as a pointer | |
| 34 | * to a region of memory containing a list of records. In a typical | |
| 35 | * usage scenario, a JVMTI agent would cast each record to a | |
| 36 | * jvmtiCompiledMethodLoadRecordHeader, a struct that represents | |
| 37 | * arbitrary information. This struct contains a kind field to indicate | |
| 38 | * the kind of information being passed, and a pointer to the next | |
| 39 | * record. If the kind field indicates inlining information, then the | |
| 40 | * agent would cast the record to a jvmtiCompiledMethodLoadInlineRecord. | |
| 41 | * This record contains an array of PCStackInfo structs, which indicate | |
| 42 | * for every pc address what are the methods on the invocation stack. | |
| 43 | * The "methods" and "bcis" fields in each PCStackInfo struct specify a | |
| 44 | * 1-1 mapping between these inlined methods and their bytecode indices. | |
| 45 | * This can be used to derive the proper source lines of the inlined | |
| 46 | * methods. | |
| 47 | */ | |
| 48 | ||
| 49 | #ifndef _JVMTI_CMLR_H_ | |
| 50 | #define _JVMTI_CMLR_H_ | |
| 51 | ||
| 52 | enum { | |
| 53 | JVMTI_CMLR_MAJOR_VERSION_1 = 0x00000001, | |
| 54 | JVMTI_CMLR_MINOR_VERSION_0 = 0x00000000, | |
| 55 | ||
| 56 | JVMTI_CMLR_MAJOR_VERSION = 0x00000001, | |
| 57 | JVMTI_CMLR_MINOR_VERSION = 0x00000000 | |
| 58 | ||
| 59 | /* | |
| 60 | * This comment is for the "JDK import from HotSpot" sanity check: | |
| 61 | * version: 1.0.0 | |
| 62 | */ | |
| 63 | }; | |
| 64 | ||
| 65 | typedef enum { | |
| 66 | JVMTI_CMLR_DUMMY = 1, | |
| 67 | JVMTI_CMLR_INLINE_INFO = 2 | |
| 68 | } jvmtiCMLRKind; | |
| 69 | ||
| 70 | /* | |
| 71 | * Record that represents arbitrary information passed through JVMTI | |
| 72 | * CompiledMethodLoadEvent void pointer. | |
| 73 | */ | |
| 74 | typedef struct _jvmtiCompiledMethodLoadRecordHeader { | |
| 75 | jvmtiCMLRKind kind; /* id for the kind of info passed in the record */ | |
| 76 | jint majorinfoversion; /* major and minor info version values. Init'ed */ | |
| 77 | jint minorinfoversion; /* to current version value in jvmtiExport.cpp. */ | |
| 78 | ||
| 79 | struct _jvmtiCompiledMethodLoadRecordHeader* next; | |
| 80 | } jvmtiCompiledMethodLoadRecordHeader; | |
| 81 | ||
| 82 | /* | |
| 83 | * Record that gives information about the methods on the compile-time | |
| 84 | * stack at a specific pc address of a compiled method. Each element in | |
| 85 | * the methods array maps to same element in the bcis array. | |
| 86 | */ | |
| 87 | typedef struct _PCStackInfo { | |
| 88 | void* pc; /* the pc address for this compiled method */ | |
| 89 | jint numstackframes; /* number of methods on the stack */ | |
| 90 | jmethodID* methods; /* array of numstackframes method ids */ | |
| 91 | jint* bcis; /* array of numstackframes bytecode indices */ | |
| 92 | } PCStackInfo; | |
| 93 | ||
| 94 | /* | |
| 95 | * Record that contains inlining information for each pc address of | |
| 96 | * an nmethod. | |
| 97 | */ | |
| 98 | typedef struct _jvmtiCompiledMethodLoadInlineRecord { | |
| 99 | jvmtiCompiledMethodLoadRecordHeader header; /* common header for casting */ | |
| 100 | jint numpcs; /* number of pc descriptors in this nmethod */ | |
| 101 | PCStackInfo* pcinfo; /* array of numpcs pc descriptors */ | |
| 102 | } jvmtiCompiledMethodLoadInlineRecord; | |
| 103 | ||
| 104 | /* | |
| 105 | * Dummy record used to test that we can pass records with different | |
| 106 | * information through the void pointer provided that they can be cast | |
| 107 | * to a jvmtiCompiledMethodLoadRecordHeader. | |
| 108 | */ | |
| 109 | ||
| 110 | typedef struct _jvmtiCompiledMethodLoadDummyRecord { | |
| 111 | jvmtiCompiledMethodLoadRecordHeader header; /* common header for casting */ | |
| 112 | char message[50]; | |
| 113 | } jvmtiCompiledMethodLoadDummyRecord; | |
| 114 | ||
| 115 | #endif | |
