Mercurial > hg > truffle
comparison src/share/vm/code/jvmticmlr.h @ 1184:7fbf850d87b7
6580131: 3/4 CompiledMethodLoad events don't produce the expected extra notifications to describe inlining
Summary: Add support for additional implementation specific info to the JVM/TI CompiledMethodLoad event via the compile_info parameter.
Reviewed-by: never, ohair, tbell, tdeneau
Contributed-by: Vasanth Venkatachalam <vasanth.venkatachalam@amd.com>
author | dcubed |
---|---|
date | Wed, 13 Jan 2010 09:39:46 -0700 |
parents | |
children | c18cbe5936b8 |
comparison
equal
deleted
inserted
replaced
1121:98cd9901c161 | 1184:7fbf850d87b7 |
---|---|
1 /* | |
2 * Copyright 2010 Sun Microsystems, Inc. All Rights Reserved. | |
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. Sun designates this | |
8 * particular file as subject to the "Classpath" exception as provided | |
9 * by Sun in the LICENSE file that accompanied this code. | |
10 * | |
11 * This code is distributed in the hope that it will be useful, but WITHOUT | |
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 * version 2 for more details (a copy is included in the LICENSE file that | |
15 * accompanied this code). | |
16 * | |
17 * You should have received a copy of the GNU General Public License version | |
18 * 2 along with this work; if not, write to the Free Software Foundation, | |
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
20 * | |
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
22 * CA 95054 USA or visit www.sun.com if you need additional information or | |
23 * have any questions. | |
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 |