218 lines
8.1 KiB
C++
218 lines
8.1 KiB
C++
/*
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* Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <jvmti.h>
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#include "agent_common.h"
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#include "nsk_tools.h"
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#include "JVMTITools.h"
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#include "jvmti_tools.h"
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extern "C" {
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#define METH_NUM 3 /* overall number of methods */
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#define STATUS_FAILED 2
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#define PASSED 0
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typedef struct { /* local variable info */
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char *v_name; /* a variable name */
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char *v_sign; /* JVM type signature */
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} localVar;
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/* expected local variable info are below */
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static localVar constr_lv[] = { /* constructor's local variables */
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{(char*) "this", (char*) "Lnsk/jvmti/GetLocalVariableTable/localtab004a;"},
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{(char*) "constr_i", (char*) "I"},
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{(char*) "constr_l", (char*) "J"},
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{(char*) "constr_d", (char*) "D"},
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{(char*) "constr_f", (char*) "F"},
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{(char*) "constr_c", (char*) "C"}
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};
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static localVar finMeth_lv[] = { /* finMethod()'s local variables */
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{(char*) "this", (char*) "Lnsk/jvmti/GetLocalVariableTable/localtab004a;"},
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{(char*) "fin_c", (char*) "C"},
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{(char*) "fin_i", (char*) "J"},
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{(char*) "fin_j", (char*) "I"},
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{(char*) "fin_k", (char*) "J"},
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{(char*) "fin_l", (char*) "J"},
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{(char*) "fin_f", (char*) "F"}
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};
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static localVar statMeth_lv[] = { /* statMethod()'s local variables */
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{(char*) "stat_x", (char*) "I"},
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{(char*) "stat_y", (char*) "I"},
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{(char*) "stat_z", (char*) "I"},
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{(char*) "stat_j", (char*) "D"},
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{(char*) "stat_i", (char*) "I"}
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};
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typedef struct { /* local variables of a method */
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int inst; /* type of a method: 0- static; 1- instance */
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char *m_name; /* a method name */
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char *m_sign; /* JVM signature of a method */
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int vcount; /* overall number of local variables */
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localVar *vars;
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jmethodID mid; /* JNI's method ID */
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} methodInfo;
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/* list of tested methods */
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static methodInfo methInfo[] = {
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{1, (char*) "<init>", (char*) "()V", 6, constr_lv, NULL},
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{1, (char*) "finMethod", (char*) "(CJIJ)V", 7, finMeth_lv, NULL},
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{0, (char*) "statMethod", (char*) "(III)D", 5, statMeth_lv, NULL}
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};
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static jvmtiEnv *jvmti = NULL;
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static jvmtiCapabilities caps;
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static int checkAttr(JNIEnv *jni_env, jclass testedCls) {
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int i, j, k;
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int totRes = PASSED;
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jint count = -1;
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jvmtiLocalVariableEntry *lv_table;
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for (i=0; i<METH_NUM; i++) {
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/* get the JNI method ID for a method with name m_name and
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signature m_sign */
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if (methInfo[i].inst) /* an instance method */
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methInfo[i].mid = jni_env->GetMethodID(testedCls, methInfo[i].m_name, methInfo[i].m_sign);
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else /* a static method */
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methInfo[i].mid = jni_env->GetStaticMethodID(testedCls, methInfo[i].m_name, methInfo[i].m_sign);
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if (methInfo[i].mid == NULL) {
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NSK_COMPLAIN3("TEST FAILURE: unable to get the method ID for the %s method \"%s\", signature \"%s\"\n\n",
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methInfo[i].inst?"instance":"static",
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methInfo[i].m_name, methInfo[i].m_sign);
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return STATUS_FAILED;
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}
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/* get the LocalVariableTable attribute */
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if (!NSK_JVMTI_VERIFY(jvmti->GetLocalVariableTable(methInfo[i].mid, &count, &lv_table))) {
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NSK_COMPLAIN3("TEST FAILED: unable to get local variable table\n\tfor the %s method \"%s\", signature \"%s\"\n\n",
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methInfo[i].inst?"instance":"static",
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methInfo[i].m_name, methInfo[i].m_sign);
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return STATUS_FAILED;
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} else {
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if (count != methInfo[i].vcount) {
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totRes = STATUS_FAILED;
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NSK_COMPLAIN5(
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"TEST FAILED: %s method \"%s\", signature \"%s\": found %d vars in the LocalVariableTable, expected %d\n"
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"\tHere are the found vars:\n",
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methInfo[i].inst?"instance":"static",
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methInfo[i].m_name, methInfo[i].m_sign,
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count, methInfo[i].vcount);
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for (j=0; j<count; j++)
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NSK_COMPLAIN3("\t#%d) name: \"%s\", signature: \"%s\"\n",
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j+1, lv_table[j].name, lv_table[j].signature);
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NSK_COMPLAIN0("\n");
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continue;
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}
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else {
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NSK_DISPLAY4(
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"Checking vars in the LocalVariableTable of the %s method \"%s\", signature \"%s\" ...\n"
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"\tfound %d local vars as expected\n",
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methInfo[i].inst?"instance":"static",
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methInfo[i].m_name, methInfo[i].m_sign, count);
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}
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for (j=0; j<count; j++) {
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for (k=0; k<count; k++) {
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if (strcmp(lv_table[j].name, methInfo[i].vars[k].v_name) == 0) {
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if (strcmp(lv_table[j].signature, methInfo[i].vars[k].v_sign) != 0) {
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NSK_COMPLAIN6(
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"TEST FAILED: %s method: \"%s\", signature: \"%s\": var \"%s\" "
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"has signature \"%s\" in the LocalVariableTable, expected \"%s\"\n\n",
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methInfo[i].inst?"instance":"static",
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methInfo[i].m_name, methInfo[i].m_sign,
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lv_table[j].name, lv_table[j].signature,
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methInfo[i].vars[k].v_sign);
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totRes = STATUS_FAILED;
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break;
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}
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else
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NSK_DISPLAY2("\tfound var \"%s\", signature: \"%s\" as expected\n",
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lv_table[j].name, lv_table[j].signature);
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}
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}
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}
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NSK_DISPLAY0("\n");
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}
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}
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return totRes;
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}
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JNIEXPORT jint JNICALL
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Java_nsk_jvmti_GetLocalVariableTable_localtab004_check(
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JNIEnv *env, jobject obj, jobject testedObj) {
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jclass testedCls = env->GetObjectClass(testedObj);
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if (!caps.can_access_local_variables)
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return PASSED;
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return checkAttr(env, testedCls);
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}
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#ifdef STATIC_BUILD
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JNIEXPORT jint JNICALL Agent_OnLoad_localtab004(JavaVM *jvm, char *options, void *reserved) {
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return Agent_Initialize(jvm, options, reserved);
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}
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JNIEXPORT jint JNICALL Agent_OnAttach_localtab004(JavaVM *jvm, char *options, void *reserved) {
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return Agent_Initialize(jvm, options, reserved);
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}
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JNIEXPORT jint JNI_OnLoad_localtab004(JavaVM *jvm, char *options, void *reserved) {
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return JNI_VERSION_1_8;
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}
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#endif
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jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
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/* init framework and parse options */
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if (!NSK_VERIFY(nsk_jvmti_parseOptions(options)))
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return JNI_ERR;
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/* create JVMTI environment */
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if (!NSK_VERIFY((jvmti =
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nsk_jvmti_createJVMTIEnv(jvm, reserved)) != NULL))
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return JNI_ERR;
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/* add capability to access local variables */
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memset(&caps, 0, sizeof(jvmtiCapabilities));
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caps.can_access_local_variables = 1;
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if (!NSK_JVMTI_VERIFY(jvmti->AddCapabilities(&caps)))
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return JNI_ERR;
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if (!NSK_JVMTI_VERIFY(jvmti->GetCapabilities(&caps)))
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return JNI_ERR;
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if (!caps.can_access_local_variables)
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NSK_DISPLAY0("Warning: access to local variables is not implemented\n");
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return JNI_OK;
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}
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}
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