1 /*
2 * Copyright (c) 2007, 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 #include <stdio.h>
24 #include <string.h>
25 #include "jvmti.h"
26 #include <jvmti_tools.h>
27 #include "JVMTITools.h"
28 #include "agent_common.h"
29
30 extern "C" {
31
32 /* ============================================================================= */
33
34 static jvmtiEnv *jvmti = NULL;
35 static jvmtiCapabilities caps;
36 static jvmtiEventCallbacks callbacks;
37
38 /* ============================================================================= */
39
40 JNIEXPORT jboolean JNICALL
41 Java_nsk_jvmti_ForceEarlyReturn_ForceEarlyReturn001_suspendThread (
42 JNIEnv *env
43 , jclass cls
44 , jobject earlyReturnThread
45 )
46 {
47 if (!NSK_JVMTI_VERIFY(
48 jvmti ->SuspendThread (earlyReturnThread )
49 )
50 )
51 return JNI_FALSE;
52
53 return JNI_TRUE;
54 }
55
56 /* ============================================================================= */
57
58 JNIEXPORT jboolean JNICALL
59 Java_nsk_jvmti_ForceEarlyReturn_ForceEarlyReturn001_resumeThread (
60 JNIEnv *env
61 , jclass klass
62 , jobject earlyReturnThread
63 )
64 {
65 if (!NSK_JVMTI_VERIFY(
66 jvmti ->ResumeThread (earlyReturnThread )
67 )
68 )
69 return JNI_FALSE;
70
71 return JNI_TRUE;
72 }
73
74 /* ============================================================================= */
75
76 JNIEXPORT jboolean JNICALL
77 Java_nsk_jvmti_ForceEarlyReturn_ForceEarlyReturn001_doForceEarlyReturnObject (
78 JNIEnv *env
79 , jclass klass
80 , jthread earlyReturnThread
81 , jobject valueToReturn
82 )
83 {
84 if (!NSK_JVMTI_VERIFY(
85 jvmti ->ForceEarlyReturnObject (earlyReturnThread , valueToReturn )
86 )
87 )
88 return JNI_FALSE;
89
90 return JNI_TRUE;
91 }
92
93 /* ============================================================================= */
94
95 JNIEXPORT jboolean JNICALL
96 Java_nsk_jvmti_ForceEarlyReturn_ForceEarlyReturn001_doForceEarlyReturnInt(
97 JNIEnv *env
98 , jclass klass
99 , jthread earlyReturnThread
100 , jint valueToReturn
101 )
102 {
103 if (!NSK_JVMTI_VERIFY(
104 jvmti ->ForceEarlyReturnInt (earlyReturnThread , valueToReturn )
105 )
106 )
107 return JNI_FALSE;
108
109 return JNI_TRUE;
110 }
111
112 /* ============================================================================= */
113
114 JNIEXPORT jboolean JNICALL
115 Java_nsk_jvmti_ForceEarlyReturn_ForceEarlyReturn001_doForceEarlyReturnLong (
116 JNIEnv *env
117 , jclass klass
118 , jthread earlyReturnThread
119 , jlong valueToReturn
120 )
121 {
122 if (!NSK_JVMTI_VERIFY(
123 jvmti ->ForceEarlyReturnLong (earlyReturnThread , valueToReturn )
124 )
125 )
126 return JNI_FALSE;
127
128 return JNI_TRUE;
129 }
130
131 /* ============================================================================= */
132
133 JNIEXPORT jboolean JNICALL
134 Java_nsk_jvmti_ForceEarlyReturn_ForceEarlyReturn001_doForceEarlyReturnFloat (
135 JNIEnv *env
136 , jclass klass
137 , jthread earlyReturnThread
138 , jfloat valueToReturn
139 )
140 {
141 if (!NSK_JVMTI_VERIFY(
142 jvmti ->ForceEarlyReturnFloat (earlyReturnThread , valueToReturn )
143 )
144 )
145 return JNI_FALSE;
146
147 return JNI_TRUE;
148 }
149
150 /* ============================================================================= */
151
152 JNIEXPORT jboolean JNICALL
153 Java_nsk_jvmti_ForceEarlyReturn_ForceEarlyReturn001_doForceEarlyReturnDouble (
154 JNIEnv *env
155 , jclass klass
156 , jthread earlyReturnThread
157 , jdouble valueToReturn
158 )
159 {
160 if (!NSK_JVMTI_VERIFY(
161 jvmti ->ForceEarlyReturnDouble (earlyReturnThread , valueToReturn )
162 )
163 )
164 return JNI_FALSE;
165
166 return JNI_TRUE;
167 }
168
169 /* ============================================================================= */
170
171 JNIEXPORT jboolean JNICALL
172 Java_nsk_jvmti_ForceEarlyReturn_ForceEarlyReturn001_doForceEarlyReturnVoid (
173 JNIEnv *env
174 , jclass klass
175 , jthread earlyReturnThread
176 )
177 {
178 if (!NSK_JVMTI_VERIFY(
179 jvmti ->ForceEarlyReturnVoid (earlyReturnThread )
180 )
181 )
182 return JNI_FALSE;
183
184 return JNI_TRUE;
185 }
186
187 /* ============================================================================= */
188
189 /* Agent initialization procedure */
190 #ifdef STATIC_BUILD
191 JNIEXPORT jint JNICALL Agent_OnLoad_ForceEarlyReturn001(JavaVM *jvm, char *options, void *reserved) {
192 return Agent_Initialize(jvm, options, reserved);
193 }
194 JNIEXPORT jint JNICALL Agent_OnAttach_ForceEarlyReturn001(JavaVM *jvm, char *options, void *reserved) {
195 return Agent_Initialize(jvm, options, reserved);
196 }
197 JNIEXPORT jint JNI_OnLoad_ForceEarlyReturn001(JavaVM *jvm, char *options, void *reserved) {
198 return JNI_VERSION_1_8;
199 }
200 #endif
201 jint Agent_Initialize(JavaVM *vm, char *options, void *reserved)
202 {
203 jvmtiCapabilities caps;
204
205 if (!NSK_VERIFY(
206 (jvmti = nsk_jvmti_createJVMTIEnv(vm, reserved)) != NULL
207 )
208 )
209 return JNI_ERR;
210
211 if (!NSK_JVMTI_VERIFY(jvmti ->GetCapabilities (&caps)
212 )
213 )
214 return JNI_ERR;
215
216 // Register all necessary JVM capabilities
217 caps.can_force_early_return = 1;
218 caps.can_suspend = 1;
219
220 if (!NSK_JVMTI_VERIFY(jvmti ->AddCapabilities (&caps)
221 )
222 )
223 return JNI_ERR;
224
225 return JNI_OK;
226 }
227
228 }