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 <string.h>
26 #include "jvmti.h"
27 #include "agent_common.h"
28 #include "JVMTITools.h"
29
30 extern "C" {
31
32
33 #define PASSED 0
34 #define STATUS_FAILED 2
35
36 static jvmtiEnv *jvmti = NULL;
37 static jint result = PASSED;
38 static jboolean printdump = JNI_FALSE;
39
40 #ifdef STATIC_BUILD
Agent_OnLoad_methloc002(JavaVM * jvm,char * options,void * reserved)41 JNIEXPORT jint JNICALL Agent_OnLoad_methloc002(JavaVM *jvm, char *options, void *reserved) {
42 return Agent_Initialize(jvm, options, reserved);
43 }
Agent_OnAttach_methloc002(JavaVM * jvm,char * options,void * reserved)44 JNIEXPORT jint JNICALL Agent_OnAttach_methloc002(JavaVM *jvm, char *options, void *reserved) {
45 return Agent_Initialize(jvm, options, reserved);
46 }
JNI_OnLoad_methloc002(JavaVM * jvm,char * options,void * reserved)47 JNIEXPORT jint JNI_OnLoad_methloc002(JavaVM *jvm, char *options, void *reserved) {
48 return JNI_VERSION_1_8;
49 }
50 #endif
Agent_Initialize(JavaVM * jvm,char * options,void * reserved)51 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
52 jint res;
53
54 if (options != NULL && strcmp(options, "printdump") == 0) {
55 printdump = JNI_TRUE;
56 }
57
58 res = jvm->GetEnv((void **) &jvmti, JVMTI_VERSION_1_1);
59 if (res != JNI_OK || jvmti == NULL) {
60 printf("Wrong result of a valid call to GetEnv!\n");
61 return JNI_ERR;
62 }
63
64 return JNI_OK;
65 }
66
67 JNIEXPORT jint JNICALL
Java_nsk_jvmti_GetMethodLocation_methloc002_check(JNIEnv * env,jclass cls)68 Java_nsk_jvmti_GetMethodLocation_methloc002_check(JNIEnv *env, jclass cls) {
69 jvmtiError err;
70 jmethodID mid;
71 jlocation startLocation;
72 jlocation endLocation;
73
74 if (jvmti == NULL) {
75 printf("JVMTI client was not properly loaded!\n");
76 return STATUS_FAILED;
77 }
78
79 mid = env->GetMethodID(cls, "<init>", "()V");
80 if (mid == NULL) {
81 printf("Cannot get method ID for \"<init>\"!\n");
82 return STATUS_FAILED;
83 }
84
85 if (printdump == JNI_TRUE) {
86 printf(">>> invalid method check ...\n");
87 }
88 err = jvmti->GetMethodLocation(NULL, &startLocation, &endLocation);
89 if (err != JVMTI_ERROR_INVALID_METHODID) {
90 printf("Error expected: JVMTI_ERROR_INVALID_METHODID,\n");
91 printf("\tactual: %s (%d)\n", TranslateError(err), err);
92 result = STATUS_FAILED;
93 }
94
95 if (printdump == JNI_TRUE) {
96 printf(">>> (startLocationPtr) null pointer check ...\n");
97 }
98 err = jvmti->GetMethodLocation(mid, NULL, &endLocation);
99 if (err != JVMTI_ERROR_NULL_POINTER) {
100 printf("(startLocationPtr) error expected: JVMTI_ERROR_NULL_POINTER,\n");
101 printf("\tactual: %s (%d)\n", TranslateError(err), err);
102 result = STATUS_FAILED;
103 }
104
105 if (printdump == JNI_TRUE) {
106 printf(">>> (endLocationPtr) null pointer check ...\n");
107 }
108 err = jvmti->GetMethodLocation(mid, &startLocation, NULL);
109 if (err != JVMTI_ERROR_NULL_POINTER) {
110 printf("(endLocationPtr) error expected: JVMTI_ERROR_NULL_POINTER,\n");
111 printf("\tactual: %s (%d)\n", TranslateError(err), err);
112 result = STATUS_FAILED;
113 }
114
115 mid = env->GetStaticMethodID(cls, "check", "()I");
116 if (mid == NULL) {
117 printf("Cannot get method ID for \"check\"!\n");
118 return STATUS_FAILED;
119 }
120
121 if (printdump == JNI_TRUE) {
122 printf(">>> native method check ...\n");
123 }
124 err = jvmti->GetMethodLocation(mid, &startLocation, &endLocation);
125 if (err != JVMTI_ERROR_NATIVE_METHOD) {
126 printf("Error expected: JVMTI_ERROR_NATIVE_METHOD,\n");
127 printf("\tactual: %s (%d)\n", TranslateError(err), err);
128 result = STATUS_FAILED;
129 }
130
131 if (printdump == JNI_TRUE) {
132 printf(">>> ... done\n");
133 }
134
135 return result;
136 }
137
138 }
139