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
24 #include <stdlib.h>
25 #include <string.h>
26 #include "jvmti.h"
27 #include "jni_tools.h"
28 #include "jvmti_tools.h"
29 #include "agent_common.h"
30
31 extern "C" {
32
33 /* ============================================================================= */
34
35 static jlong timeout = 0;
36
37 static char segment1[3000] = "";
38 static char segment2[3000] = "";
39
40 static const char* const illegal_segments[] = {"", "tmp/"};
41
42 jboolean use_segment2 = JNI_FALSE;
43
44 jvmtiPhase jvmti_phase_to_check = JVMTI_PHASE_ONLOAD;
45
46 /* ============================================================================= */
47
48 /**
49 * Add segment to bootstrap classloader path.
50 * @returns NSK_FALSE if any error occured.
51 */
52 static int addSegment(jvmtiEnv* jvmti, const char segment[], const char where[]) {
53 NSK_DISPLAY1("Add segment: \"%s\"\n", segment);
54 if (!NSK_JVMTI_VERIFY(
55 NSK_CPP_STUB2(AddToBootstrapClassLoaderSearch, jvmti, segment))) {
56 NSK_COMPLAIN1("TEST FAILURE: failed to add segment %s\n", segment);
57 return NSK_FALSE;
58 }
59 NSK_DISPLAY0(" ... added\n");
60
61 return NSK_TRUE;
62 }
63
64 /**
65 * Try to add illegal segment to bootstrap classloader path and check that expected error
66 * (expectedError) is returned.
67 * @returns NSK_FALSE if no error or wronf error is occured.
68 */
69 static int addIllegalSegment(jvmtiEnv* jvmti, const char segment[], const char where[], jvmtiError expectedError) {
70 NSK_DISPLAY1("Add illegal segment: \"%s\"\n", segment);
71 if (!NSK_JVMTI_VERIFY_CODE(expectedError,
72 NSK_CPP_STUB2(AddToBootstrapClassLoaderSearch, jvmti, segment))) {
73
74 NSK_COMPLAIN2("TEST FAILURE: got wrong error when tried to add segment %s (expected error=%s)\n",
75 segment, TranslateError(expectedError));
76 return NSK_FALSE;
77 }
78 NSK_DISPLAY0(" ... not added\n");
79
80 return NSK_TRUE;
81 }
82
83 /*
84 * Check that attempt to add illegal segment causes the error.
85 */
86 static void checkLivePhaseForIllegalArgs (jvmtiEnv* jvmti, const char where[]) {
87 size_t i;
88
89 for (i = 0; i < sizeof(illegal_segments)/sizeof(char*); i++) {
90 if (!addIllegalSegment(jvmti, illegal_segments[i], where, JVMTI_ERROR_ILLEGAL_ARGUMENT)) {
91 nsk_jvmti_setFailStatus();
92 NSK_BEFORE_TRACE(exit(nsk_jvmti_getStatus()));
93 }
94 }
95 }
96
97 /* ============================================================================= */
98
99 void JNICALL
100 callbackVMInit(jvmtiEnv *jvmti, JNIEnv *env, jthread thread) {
101 NSK_DISPLAY0(">>> Testcase #1: Add bootstrap class load segment(s) in VMInit (live phase)\n");
102
103 // At first check that it is not possible to add anything other than an existing JAR file
104 checkLivePhaseForIllegalArgs(jvmti, "VMInit()");
105
106 if (!addSegment(jvmti, segment1, "VMInit()")) {
107 nsk_jvmti_setFailStatus();
108 NSK_BEFORE_TRACE(exit(nsk_jvmti_getStatus()));
109 }
110
111 if (use_segment2 == JNI_FALSE) return;
112
113 if (!addSegment(jvmti, segment2, "VMInit()")) {
114 nsk_jvmti_setFailStatus();
115 NSK_BEFORE_TRACE(exit(nsk_jvmti_getStatus()));
116 }
117 }
118
119 /*
120 * Check that it is possible to add to the boot class path before VMDeath event return.
121 */
122 void JNICALL
123 callbackVMDeath(jvmtiEnv *jvmti, JNIEnv* jni) {
124 jvmtiPhase phase;
125
126 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB2(GetPhase, jvmti, &phase))) {
127 NSK_COMPLAIN0("TEST FAILURE: unable to get phase\n");
128 nsk_jvmti_setFailStatus();
129 NSK_BEFORE_TRACE(exit(nsk_jvmti_getStatus()));
130 }
131
132 if (!NSK_VERIFY(phase == JVMTI_PHASE_LIVE)) {
133 NSK_DISPLAY0(">>> Testcase #1: Add bootstrap class load segment(s) in VMDeath (live phase)\n");
134
135 // At first check that it is not possible to add anything other than an existing JAR file
136 checkLivePhaseForIllegalArgs(jvmti, "VMDeath()");
137
138 /* Check, that it is possible to add a JAR file containing a class that is already
139 * loaded (or is in the process of being loaded) by a _bootstrap_ class loader.
140 */
141
142 if (!addSegment(jvmti, segment1, "VMDeath()")) {
143 nsk_jvmti_setFailStatus();
144 NSK_BEFORE_TRACE(exit(nsk_jvmti_getStatus()));
145 }
146
147 if (use_segment2 == JNI_FALSE) return;
148 // otherwise add to classpath
149 if (!addSegment(jvmti, segment2, "VMDeath()")) {
150 nsk_jvmti_setFailStatus();
151 NSK_BEFORE_TRACE(exit(nsk_jvmti_getStatus()));
152 }
153 }
154 }
155
156 /** Agent library initialization. */
157 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
158 jvmtiEnv* jvmti;
159 const char *p_segment1, *p_segment2, *phase_to_check;
160
161 jvmti = NULL;
162 p_segment1 = p_segment2 = phase_to_check = NULL;
163
164 if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
165 return JNI_ERR;
166
167 timeout = nsk_jvmti_getWaitTime() * 60 * 1000;
168
169 p_segment1 = nsk_jvmti_findOptionStringValue("segment1", NULL);
170 if (!NSK_VERIFY(p_segment1 != NULL)) {
171 return JNI_ERR;
172 } else {
173 strncpy(segment1, p_segment1, (size_t) sizeof(segment1)/sizeof(char));
174 segment1[(size_t) sizeof(segment1)/sizeof(char) - 1] = 0;
175 }
176
177 // 'segment2' parameter is not mandatory
178 p_segment2 = nsk_jvmti_findOptionStringValue("segment2", NULL);
179 if (p_segment2 != NULL) {
180 strncpy(segment2, p_segment2, (size_t) sizeof(segment2)/sizeof(char));
181 segment2[(size_t) sizeof(segment2)/sizeof(char) - 1] = 0;
182 use_segment2 = JNI_TRUE;
183 }
184
185 if (!NSK_VERIFY((jvmti =
186 nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
187 return JNI_ERR;
188
189 // Check what phase(s) we are going to test
190 phase_to_check = nsk_jvmti_findOptionStringValue("phasetocheck", NULL);
191 if (!NSK_VERIFY(phase_to_check != NULL)) {
192 return JNI_ERR;
193 } else if (strcmp(phase_to_check, "onload") == 0) {
194 jvmti_phase_to_check = JVMTI_PHASE_ONLOAD;
195 } else if (strcmp(phase_to_check, "live") == 0) {
196 jvmti_phase_to_check = JVMTI_PHASE_LIVE;
197 }
198
199 if (jvmti_phase_to_check == JVMTI_PHASE_ONLOAD) {
200 NSK_DISPLAY0(">>> Testcase #1: Add bootstrap class load segment in Agent_OnLoad()\n");
201 if (!addSegment(jvmti, segment1, "Agent_OnLoad()")) {
202 return JNI_ERR;
203 }
204
205 if (!addSegment(jvmti, segment2, "Agent_OnLoad()")) {
206 return JNI_ERR;
207 }
208
209 return JNI_OK;
210 }
211
212 /* For Live phase enable events and set callbacks for them */
213 NSK_DISPLAY1("Set callback for events: %s\n", "VM_INIT, VM_DEATH");
214 {
215 jvmtiEventCallbacks eventCallbacks;
216 memset(&eventCallbacks, 0, sizeof(eventCallbacks));
217
218 eventCallbacks.VMInit = callbackVMInit;
219 eventCallbacks.VMDeath = callbackVMDeath;
220
221 if (!NSK_JVMTI_VERIFY(NSK_CPP_STUB3(SetEventCallbacks, jvmti,
222 &eventCallbacks, sizeof(eventCallbacks)))) {
223 return JNI_ERR;
224 }
225 }
226 NSK_DISPLAY0(" ... set\n");
227
228 NSK_DISPLAY1("Enable events: %s\n", "VM_INIT, VM_DEATH");
229 {
230
231 jvmtiEvent eventsList[] = { JVMTI_EVENT_VM_INIT, JVMTI_EVENT_VM_DEATH };
232 if (!NSK_VERIFY(nsk_jvmti_enableEvents(
233 JVMTI_ENABLE, sizeof(eventsList)/sizeof(jvmtiEvent), eventsList, NULL))) {
234 return JNI_ERR;
235 }
236 }
237 NSK_DISPLAY0(" ... enabled\n");
238
239 return JNI_OK;
240 }
241
242 /* ============================================================================= */
243
244 }