1 /*
2 * Copyright (c) 2003, 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
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <string.h>
27 #include <jvmti.h>
28 #include "agent_common.h"
29
30 #include "nsk_tools.h"
31 #include "JVMTITools.h"
32 #include "jvmti_tools.h"
33 #include "jni_tools.h"
34
35 extern "C" {
36
37 #define STATUS_FAILED 2
38 #define PASSED 0
39
40 static volatile jint result = PASSED;
41 static volatile long wrongStepEv = 0;
42
43 static jvmtiEnv *jvmti = NULL;
44 static jvmtiEventCallbacks callbacks;
45 static jvmtiCapabilities caps;
46
47 /** callback functions **/
48 void JNICALL
49 SingleStep(jvmtiEnv *jvmti_env, JNIEnv* jni_env, jthread thread,
50 jmethodID method, jlocation location) {
51 jvmtiPhase phase;
52
53 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(GetPhase,
54 jvmti_env, &phase))) {
55 result = STATUS_FAILED;
56 NSK_COMPLAIN0("TEST FAILED: unable to obtain phase of the VM execution during SingleStep callback\n\n");
57 }
58 else {
59 if (phase != JVMTI_PHASE_LIVE) {
60 wrongStepEv++;
61 result = STATUS_FAILED;
62 NSK_COMPLAIN1("TEST FAILED: SingleStep event received during non-live phase %s\n",
63 TranslatePhase(phase));
64 }
65 }
66 }
67
68 void JNICALL
69 VMDeath(jvmtiEnv *jvmti_env, JNIEnv *env) {
70 NSK_DISPLAY0("VMDeath event received\n");
71
72 if (wrongStepEv != 0) {
73 NSK_COMPLAIN1(
74 "TEST FAILED: there are %d SingleStep events\n"
75 "sent during non-live phase of the VM execution\n",
76 wrongStepEv);
77 }
78
79 if (result == STATUS_FAILED)
80 exit(95 + STATUS_FAILED);
81 }
82 /************************/
83
84 #ifdef STATIC_BUILD
85 JNIEXPORT jint JNICALL Agent_OnLoad_singlestep002(JavaVM *jvm, char *options, void *reserved) {
86 return Agent_Initialize(jvm, options, reserved);
87 }
88 JNIEXPORT jint JNICALL Agent_OnAttach_singlestep002(JavaVM *jvm, char *options, void *reserved) {
89 return Agent_Initialize(jvm, options, reserved);
90 }
91 JNIEXPORT jint JNI_OnLoad_singlestep002(JavaVM *jvm, char *options, void *reserved) {
92 return JNI_VERSION_1_8;
93 }
94 #endif
95 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
96 /* init framework and parse options */
97 if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
98 return JNI_ERR;
99
100 /* create JVMTI environment */
101 if (!NSK_VERIFY((jvmti =
102 nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
103 return JNI_ERR;
104
105 /* add capability to generate compiled method events */
106 memset(&caps, 0, sizeof(jvmtiCapabilities));
107 caps.can_generate_single_step_events = 1;
108 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(AddCapabilities,
109 jvmti, &caps)))
110 return JNI_ERR;
111
112 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(GetCapabilities,
113 jvmti, &caps)))
114 return JNI_ERR;
115
116 if (!caps.can_generate_single_step_events)
117 NSK_DISPLAY0("Warning: generation of single step events is not implemented\n");
118
119 /* set event callback */
120 NSK_DISPLAY0("setting event callbacks ...\n");
121 (void) memset(&callbacks, 0, sizeof(callbacks));
122 callbacks.SingleStep = &SingleStep;
123 callbacks.VMDeath = &VMDeath;
124 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(SetEventCallbacks,
125 jvmti, &callbacks, sizeof(callbacks))))
126 return JNI_ERR;
127
128 NSK_DISPLAY0("setting event callbacks done\nenabling JVMTI events ...\n");
129 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode,
130 jvmti, JVMTI_ENABLE, JVMTI_EVENT_SINGLE_STEP, NULL)))
131 return JNI_ERR;
132 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB4(SetEventNotificationMode,
133 jvmti, JVMTI_ENABLE, JVMTI_EVENT_VM_DEATH, NULL)))
134 return JNI_ERR;
135 NSK_DISPLAY0("enabling the events done\n\n");
136
137 return JNI_OK;
138 }
139
140 }