1 /* 2 * Copyright (c) 2006, 2018, Oracle and/or its affiliates. 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 #ifndef __FollowRefObject_h 24 #define __FollowRefObject_h 25 26 #include <jvmti.h> 27 28 #ifdef __cplusplus 29 extern "C" { 30 #endif 31 32 /* ============================================================================= */ 33 34 void jvmti_FollowRefObject_init(); 35 36 /* ============================================================================= */ 37 38 #define DBG(x) x 39 #define DEREF(ptr) (((ptr) == NULL ? 0 : *(ptr))) 40 41 extern jvmtiHeapCallbacks g_wrongHeapCallbacks; /* Callbacks that blame */ 42 43 extern const char * const g_refKindStr[28]; /* JVMTI_HEAP_REFERENCE_xxx */ 44 45 /* ============================================================================= */ 46 47 #define MAX_TAG 1000 48 #define MAX_REFS (MAX_TAG * 3) 49 50 #define FLAG_TAG_SET 0x01 51 52 extern char * g_szTagInfo[MAX_TAG]; 53 extern char g_tagFlags[MAX_TAG]; 54 extern int g_tagVisitCount[MAX_TAG]; 55 56 void markTagSet(jlong tag_val); 57 void markTagVisited(jlong tag_val); 58 59 jboolean checkThatAllTagsVisited(); 60 61 /* ============================================================================= */ 62 63 typedef struct { 64 65 jlong _tagFrom, 66 _tagTo; 67 68 jint _refKind; 69 70 int _expectedCount, 71 _actualCount; 72 73 } RefToVerify; 74 75 extern int g_refsToVerifyCnt; 76 77 extern RefToVerify g_refsToVerify[MAX_REFS]; 78 79 jboolean markRefToVerify(jlong tagFrom, jlong tagTo, int refKind); 80 81 /* ============================================================================= */ 82 83 extern int g_fakeUserData; 84 extern int g_userDataError; 85 86 #define CHECK_USER_DATA(p) checkUserData(__FILE__, __LINE__, (p)) 87 88 void checkUserData(const char * szFile, const int line, void * user_data); 89 90 /* ============================================================================= */ 91 92 void printHeapRefCallbackInfo( 93 jvmtiHeapReferenceKind reference_kind, 94 const jvmtiHeapReferenceInfo* reference_info, 95 jlong class_tag, 96 jlong referrer_class_tag, 97 jlong size, 98 jlong* tag_ptr, 99 jlong* referrer_tag_ptr, 100 jint length); 101 102 /* ============================================================================= */ 103 104 #ifdef __cplusplus 105 } 106 #endif 107 108 #endif