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 <stdarg.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 
  29 #include <jvmti.h>
  30 #include "agent_common.h"
  31 
  32 #include "nsk_tools.h"
  33 #include "JVMTITools.h"
  34 #include "jvmti_tools.h"
  35 
  36 extern "C" {
  37 
  38 #define PASSED  0
  39 #define STATUS_FAILED  2
  40 
  41 /* the highly recommended system properties are below */
  42 #define PROP_NUM 6
  43 static const char *expected_props[PROP_NUM] = {
  44     "java.vm.vendor",
  45     "java.vm.version",
  46     "java.vm.name",
  47     "java.vm.info",
  48     "java.library.path",
  49     "java.class.path"
  50 };
  51 
  52 static jvmtiEventCallbacks callbacks;
  53 static jint result = PASSED;
  54 
  55 static int findProp(char *prop) {
  56     int i;
  57 
  58     for (i=0; i<PROP_NUM; i++) {
  59         if (strcmp(expected_props[i], prop) == 0) {
  60             NSK_DISPLAY1("CHECK PASSED: found highly recommended system property \"%s\" as expected\n",
  61                 expected_props[i]);
  62             return 1; /* the property found */
  63         }
  64     }
  65 
  66     NSK_DISPLAY1("\tsystem property \"%s\" not found among highly recommended ones\n",
  67         prop);
  68     return 0; /* the property not found */
  69 }
  70 
  71 static void checkProps(jvmtiEnv *jvmti_env, const char *stepMsg) {
  72     jint count;
  73     char **propKeys;
  74     char *prop;
  75     int i;
  76     int foundProps = 0;
  77 
  78     NSK_DISPLAY1("%s: Getting system property keys ...\n",
  79         stepMsg);
  80     if (!NSK_JVMTI_VERIFY(jvmti_env->GetSystemProperties(&count, &propKeys))) {
  81         result = STATUS_FAILED;
  82         return;
  83     }
  84     NSK_DISPLAY1("%d keys obtained\n",
  85         count);
  86 
  87     if (count < PROP_NUM) {
  88         result = STATUS_FAILED;
  89         NSK_COMPLAIN2("TEST FAILED: GetSystemProperties() returns %d system property keys\n\texpected at least %d",
  90             count, PROP_NUM);
  91     }
  92 
  93     for (i=0; i< count; i++) {
  94         NSK_DISPLAY2("%d) getting property for the key \"%s\":\n",
  95             i+1, propKeys[i]);
  96        if (!NSK_JVMTI_VERIFY(jvmti_env->GetSystemProperty((const char*) propKeys[i], &prop))) {
  97            result = STATUS_FAILED;
  98            return;
  99         }
 100         NSK_DISPLAY1("\tproperty=\"%s\"\n",
 101             prop);
 102 
 103         foundProps += findProp(propKeys[i]);
 104 
 105         NSK_DISPLAY0("\tdeallocating system property\n");
 106         if (!NSK_JVMTI_VERIFY(jvmti_env->Deallocate((unsigned char*) prop))) {
 107             result = STATUS_FAILED;
 108             return;
 109         }
 110 
 111         NSK_DISPLAY0("\tdeallocating the system property key\n\n");
 112         if (!NSK_JVMTI_VERIFY(jvmti_env->Deallocate((unsigned char*) propKeys[i]))) {
 113             result = STATUS_FAILED;
 114             return;
 115         }
 116     }
 117 
 118 /*    NSK_DISPLAY0("Deallocating the property key array ...\n");
 119     if (!NSK_JVMTI_VERIFY(jvmti_env->Deallocate((unsigned char*) &propKeys))) {
 120         result = STATUS_FAILED;
 121         return;
 122     }*/
 123 
 124     if (foundProps != PROP_NUM) {
 125         result = STATUS_FAILED;
 126         NSK_COMPLAIN2("TEST FAILED: only %d highly recommended system properties found\n\tinstead of %d as expected\n",
 127             foundProps, PROP_NUM);
 128     }
 129 }
 130 
 131 /** callback functions **/
 132 void JNICALL
 133 VMInit(jvmtiEnv *jvmti_env, JNIEnv *env, jthread thr) {
 134     NSK_DISPLAY0("VMInit event received\n");
 135 
 136     checkProps(jvmti_env, ">>> b) TEST CASE \"VMInit\"");
 137 }
 138 
 139 void JNICALL
 140 VMDeath(jvmtiEnv *jvmti_env, JNIEnv *env) {
 141     NSK_DISPLAY0("VMDeath event received\n");
 142 
 143     checkProps(jvmti_env, ">>> c) TEST CASE \"VMDeath\"");
 144 
 145     if (result == STATUS_FAILED)
 146         exit(STATUS_FAILED);
 147 }
 148 /************************/
 149 
 150 JNIEXPORT jint JNICALL
 151 Java_nsk_jvmti_scenarios_general_1functions_GF01_gf01t001_check(JNIEnv *env, jobject obj) {
 152     return result;
 153 }
 154 
 155 #ifdef STATIC_BUILD
 156 JNIEXPORT jint JNICALL Agent_OnLoad_gf01t001(JavaVM *jvm, char *options, void *reserved) {
 157     return Agent_Initialize(jvm, options, reserved);
 158 }
 159 JNIEXPORT jint JNICALL Agent_OnAttach_gf01t001(JavaVM *jvm, char *options, void *reserved) {
 160     return Agent_Initialize(jvm, options, reserved);
 161 }
 162 JNIEXPORT jint JNI_OnLoad_gf01t001(JavaVM *jvm, char *options, void *reserved) {
 163     return JNI_VERSION_1_8;
 164 }
 165 #endif
 166 jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
 167     jvmtiEnv *jvmti;
 168 
 169     /* init framework and parse options */
 170     if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
 171         return JNI_ERR;
 172 
 173     /* create JVMTI environment */
 174     if (!NSK_VERIFY((jvmti =
 175             nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
 176         return JNI_ERR;
 177 
 178     NSK_DISPLAY0("setting event callbacks ...\n");
 179 
 180     (void) memset(&callbacks, 0, sizeof(callbacks));
 181     callbacks.VMInit = &VMInit;
 182     callbacks.VMDeath = &VMDeath;
 183     if (!NSK_JVMTI_VERIFY(jvmti->SetEventCallbacks(&callbacks, sizeof(callbacks))))
 184         return JNI_ERR;
 185 
 186     NSK_DISPLAY0("setting event callbacks done\nenabling events ...\n");
 187 
 188     if (!NSK_JVMTI_VERIFY(jvmti->SetEventNotificationMode(JVMTI_ENABLE, JVMTI_EVENT_VM_DEATH, NULL)))
 189         return JNI_ERR;
 190     if (!NSK_JVMTI_VERIFY(jvmti->SetEventNotificationMode(JVMTI_ENABLE, JVMTI_EVENT_VM_INIT, NULL)))
 191         return JNI_ERR;
 192 
 193     NSK_DISPLAY0("enabling events done\n\n");
 194 
 195     checkProps(jvmti, ">>> a) TEST CASE \"OnLoad\"");
 196 
 197     return JNI_OK;
 198 }
 199 
 200 }