1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/*
* Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include <stdio.h>
#include <string.h>
#include "jvmti.h"
#include "agent_common.h"
#include "JVMTITools.h"
extern "C" {
#define PASSED 0
#define STATUS_FAILED 2
static jvmtiEnv *jvmti = NULL;
static jint result = PASSED;
static jboolean printdump = JNI_FALSE;
#ifdef STATIC_BUILD
JNIEXPORT jint JNICALL Agent_OnLoad_methmod002(JavaVM *jvm, char *options, void *reserved) {
return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNICALL Agent_OnAttach_methmod002(JavaVM *jvm, char *options, void *reserved) {
return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNI_OnLoad_methmod002(JavaVM *jvm, char *options, void *reserved) {
return JNI_VERSION_1_8;
}
#endif
jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
jint res;
if (options != NULL && strcmp(options, "printdump") == 0) {
printdump = JNI_TRUE;
}
res = jvm->GetEnv((void **) &jvmti, JVMTI_VERSION_1_1);
if (res != JNI_OK || jvmti == NULL) {
printf("Wrong result of a valid call to GetEnv!\n");
return JNI_ERR;
}
return JNI_OK;
}
JNIEXPORT jint JNICALL
Java_nsk_jvmti_GetMethodModifiers_methmod002_check(JNIEnv *env, jclass cls) {
jvmtiError err;
jmethodID mid;
jint modifiers;
if (jvmti == NULL) {
printf("JVMTI client was not properly loaded!\n");
return STATUS_FAILED;
}
mid = env->GetMethodID(cls, "<init>", "()V");
if (mid == NULL) {
printf("Cannot get method ID!\n");
return STATUS_FAILED;
}
if (printdump == JNI_TRUE) {
printf(">>> invalid method check ...\n");
}
err = jvmti->GetMethodModifiers(NULL, &modifiers);
if (err != JVMTI_ERROR_INVALID_METHODID) {
printf("Error expected: JVMTI_ERROR_INVALID_METHODID,\n");
printf("\tactual: %s (%d)\n", TranslateError(err), err);
result = STATUS_FAILED;
}
if (printdump == JNI_TRUE) {
printf(">>> null pointer check ...\n");
}
err = jvmti->GetMethodModifiers(mid, NULL);
if (err != JVMTI_ERROR_NULL_POINTER) {
printf("Error expected: JVMTI_ERROR_NULL_POINTER,\n");
printf("\tactual: %s (%d)\n", TranslateError(err), err);
result = STATUS_FAILED;
}
if (printdump == JNI_TRUE) {
printf(">>> ... done\n");
}
return result;
}
}
|
