jdk8-mips64-public/hotspot: src/share/vm/code/jvmticmlr.h@a248d0be1309 (annotated)

src/share/vm/code/jvmticmlr.h@a248d0be1309 (annotated)

src/share/vm/code/jvmticmlr.h

Mon, 19 Aug 2019 10:11:31 +0200

author: neugens
date: Mon, 19 Aug 2019 10:11:31 +0200
changeset 9861: a248d0be1309
parent 1907: c18cbe5936b8
child 6876: 710a3c8b516e
permissions: -rw-r--r--

8229401: Fix JFR code cache test failures
8223689: Add JFR Thread Sampling Support
8223690: Add JFR BiasedLock Event Support
8223691: Add JFR G1 Region Type Change Event Support
8223692: Add JFR G1 Heap Summary Event Support
Summary: Backport JFR from JDK11, additional fixes
Reviewed-by: neugens, apetushkov
Contributed-by: denghui.ddh@alibaba-inc.com

 /*
  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this
  * particular file as subject to the "Classpath" exception as provided
  * by Oracle in the LICENSE file that accompanied this code.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 /*
  * This header file defines the data structures sent by the VM
  * through the JVMTI CompiledMethodLoad callback function via the
  * "void * compile_info" parameter. The memory pointed to by the
  * compile_info parameter may not be referenced after returning from
  * the CompiledMethodLoad callback. These are VM implementation
  * specific data structures that may evolve in future releases. A
  * JVMTI agent should interpret a non-NULL compile_info as a pointer
  * to a region of memory containing a list of records. In a typical
  * usage scenario, a JVMTI agent would cast each record to a
  * jvmtiCompiledMethodLoadRecordHeader, a struct that represents
  * arbitrary information. This struct contains a kind field to indicate
  * the kind of information being passed, and a pointer to the next
  * record. If the kind field indicates inlining information, then the
  * agent would cast the record to a jvmtiCompiledMethodLoadInlineRecord.
  * This record contains an array of PCStackInfo structs, which indicate
  * for every pc address what are the methods on the invocation stack.
  * The "methods" and "bcis" fields in each PCStackInfo struct specify a
  * 1-1 mapping between these inlined methods and their bytecode indices.
  * This can be used to derive the proper source lines of the inlined
  * methods.
  */
 #ifndef _JVMTI_CMLR_H_
 #define _JVMTI_CMLR_H_
 enum {
     JVMTI_CMLR_MAJOR_VERSION_1 = 0x00000001,
     JVMTI_CMLR_MINOR_VERSION_0 = 0x00000000,
     JVMTI_CMLR_MAJOR_VERSION   = 0x00000001,
     JVMTI_CMLR_MINOR_VERSION   = 0x00000000
     /*
      * This comment is for the "JDK import from HotSpot" sanity check:
      * version: 1.0.0
      */
 };
 typedef enum {
     JVMTI_CMLR_DUMMY       = 1,
     JVMTI_CMLR_INLINE_INFO = 2
 } jvmtiCMLRKind;
 /*
  * Record that represents arbitrary information passed through JVMTI
  * CompiledMethodLoadEvent void pointer.
  */
 typedef struct _jvmtiCompiledMethodLoadRecordHeader {
   jvmtiCMLRKind kind;     /* id for the kind of info passed in the record */
   jint majorinfoversion;  /* major and minor info version values. Init'ed */
   jint minorinfoversion;  /* to current version value in jvmtiExport.cpp. */
   struct _jvmtiCompiledMethodLoadRecordHeader* next;
 } jvmtiCompiledMethodLoadRecordHeader;
 /*
  * Record that gives information about the methods on the compile-time
  * stack at a specific pc address of a compiled method. Each element in
  * the methods array maps to same element in the bcis array.
  */
 typedef struct _PCStackInfo {
   void* pc;             /* the pc address for this compiled method */
   jint numstackframes;  /* number of methods on the stack */
   jmethodID* methods;   /* array of numstackframes method ids */
   jint* bcis;           /* array of numstackframes bytecode indices */
 } PCStackInfo;
 /*
  * Record that contains inlining information for each pc address of
  * an nmethod.
  */
 typedef struct _jvmtiCompiledMethodLoadInlineRecord {
   jvmtiCompiledMethodLoadRecordHeader header;  /* common header for casting */
   jint numpcs;          /* number of pc descriptors in this nmethod */
   PCStackInfo* pcinfo;  /* array of numpcs pc descriptors */
 } jvmtiCompiledMethodLoadInlineRecord;
 /*
  * Dummy record used to test that we can pass records with different
  * information through the void pointer provided that they can be cast
  * to a jvmtiCompiledMethodLoadRecordHeader.
  */
 typedef struct _jvmtiCompiledMethodLoadDummyRecord {
   jvmtiCompiledMethodLoadRecordHeader header;  /* common header for casting */
   char message[50];
 } jvmtiCompiledMethodLoadDummyRecord;
 #endif

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src/share/vm/code/jvmticmlr.h@a248d0be1309 (annotated)

src/share/vm/code/jvmticmlr.h