224 lines
6.6 KiB
C++
224 lines
6.6 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 "JVMTITools.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef JNI_ENV_ARG
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#ifdef __cplusplus
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#define JNI_ENV_ARG(x, y) y
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#define JNI_ENV_PTR(x) x
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#else
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#define JNI_ENV_ARG(x,y) x, y
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#define JNI_ENV_PTR(x) (*x)
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#endif
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#endif
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#define PASSED 0
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#define STATUS_FAILED 2
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#define ACC_PUBLIC 0x0001
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#define ACC_PRIVATE 0x0002
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#define ACC_PROTECTED 0x0004
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#define ACC_STATIC 0x0008
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#define ACC_FINAL 0x0010
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#define ACC_SUPER 0x0020
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#define ACC_VOLATILE 0x0040
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#define ACC_TRANSIENT 0x0080
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#define ACC_NATIVE 0x0100
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#define ACC_INTERFACE 0x0200
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#define ACC_ABSTRACT 0x0400
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#define ACC_STRICT 0x0800
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typedef struct {
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const char *name;
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const char *sig;
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jboolean is_static;
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} field_info;
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static jvmtiEnv *jvmti = NULL;
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static jint result = PASSED;
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static jboolean printdump = JNI_FALSE;
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static field_info fields[] = {
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{ "field0", "I", JNI_FALSE },
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{ "field1", "I", JNI_FALSE },
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{ "field2", "I", JNI_FALSE },
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{ "field3", "I", JNI_FALSE },
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{ "field4", "I", JNI_FALSE },
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{ "field5", "I", JNI_FALSE },
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{ "field6", "I", JNI_FALSE },
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{ "field7", "I", JNI_FALSE },
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{ "field8", "I", JNI_FALSE },
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{ "field9", "I", JNI_FALSE },
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{ "field10", "I", JNI_FALSE },
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{ "field11", "I", JNI_FALSE },
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{ "field12", "I", JNI_FALSE },
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{ "field13", "I", JNI_FALSE },
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{ "field14", "I", JNI_FALSE },
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{ "field15", "I", JNI_FALSE },
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{ "field16", "I", JNI_FALSE },
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{ "field17", "I", JNI_FALSE },
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{ "field18", "I", JNI_FALSE },
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{ "field19", "I", JNI_FALSE },
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{ "field20", "I", JNI_FALSE },
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{ "field21", "I", JNI_FALSE },
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{ "field22", "I", JNI_FALSE },
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{ "field23", "I", JNI_FALSE },
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{ "field24", "I", JNI_TRUE },
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{ "field25", "I", JNI_TRUE },
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{ "field26", "I", JNI_TRUE },
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{ "field27", "I", JNI_TRUE },
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{ "field28", "I", JNI_TRUE },
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{ "field29", "I", JNI_TRUE },
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{ "field30", "I", JNI_TRUE },
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{ "field31", "I", JNI_TRUE },
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{ "field32", "I", JNI_TRUE },
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{ "field33", "I", JNI_TRUE },
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{ "field34", "I", JNI_TRUE },
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{ "field35", "I", JNI_TRUE },
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{ "field36", "I", JNI_TRUE },
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{ "field37", "I", JNI_TRUE },
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{ "field38", "I", JNI_TRUE },
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{ "field39", "I", JNI_TRUE },
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{ "field40", "I", JNI_TRUE },
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{ "field41", "I", JNI_TRUE },
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{ "field42", "I", JNI_TRUE },
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{ "field43", "I", JNI_TRUE },
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{ "field44", "I", JNI_TRUE },
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{ "field45", "I", JNI_TRUE },
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{ "field46", "I", JNI_TRUE },
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{ "field47", "I", JNI_TRUE }
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};
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#ifdef STATIC_BUILD
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JNIEXPORT jint JNICALL Agent_OnLoad_getfldmdf004(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_getfldmdf004(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_getfldmdf004(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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jint res;
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if (options != NULL && strcmp(options, "printdump") == 0) {
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printdump = JNI_TRUE;
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}
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res = JNI_ENV_PTR(jvm)->GetEnv(JNI_ENV_ARG(jvm, (void **) &jvmti),
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JVMTI_VERSION_1_1);
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if (res != JNI_OK || jvmti == NULL) {
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printf("Wrong result of a valid call to GetEnv!\n");
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return JNI_ERR;
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}
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return JNI_OK;
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}
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void printModifiers(jint mod) {
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if (mod & ACC_PUBLIC) printf(" PUBLIC");
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if (mod & ACC_PRIVATE) printf(" PRIVATE");
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if (mod & ACC_PROTECTED) printf(" PROTECTED");
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if (mod & ACC_STATIC) printf(" STATIC");
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if (mod & ACC_FINAL) printf(" FINAL");
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if (mod & ACC_SUPER) printf(" SUPER");
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if (mod & ACC_VOLATILE) printf(" VOLATILE");
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if (mod & ACC_TRANSIENT) printf(" TRANSIENT");
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if (mod & ACC_NATIVE) printf(" NATIVE");
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if (mod & ACC_INTERFACE) printf(" INTERFACE");
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if (mod & ACC_ABSTRACT) printf(" ABSTRACT");
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if (mod & ACC_STRICT) printf(" STRICT");
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printf(" (0x%0x)\n", mod);
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}
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JNIEXPORT void JNICALL
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Java_nsk_jvmti_GetFieldModifiers_getfldmdf004_check(JNIEnv *env,
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jclass cls, jint i, jint mod) {
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jvmtiError err;
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jfieldID fid;
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jint modifiers;
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if (jvmti == NULL) {
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printf("JVMTI client was not properly loaded!\n");
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result = STATUS_FAILED;
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return;
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}
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if (fields[i].is_static == JNI_TRUE) {
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fid = JNI_ENV_PTR(env)->GetStaticFieldID(JNI_ENV_ARG(env, cls),
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fields[i].name, fields[i].sig);
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} else {
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fid = JNI_ENV_PTR(env)->GetFieldID(JNI_ENV_ARG(env, cls),
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fields[i].name, fields[i].sig);
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}
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if (fid == NULL) {
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printf("(%d) cannot get field ID for %s:\"%s\"\n",
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i, fields[i].name, fields[i].sig);
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result = STATUS_FAILED;
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return;
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}
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err = jvmti->GetFieldModifiers(cls, fid, &modifiers);
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if (err != JVMTI_ERROR_NONE) {
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printf("(GetFieldModifiers#%d) unexpected error: %s (%d)\n",
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i, TranslateError(err), err);
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result = STATUS_FAILED;
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return;
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}
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if (printdump == JNI_TRUE) {
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printf(">>> %2d:", i);
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printModifiers(modifiers);
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}
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if (modifiers != mod) {
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printf("(%2d) access flags expected:", i);
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printModifiers(mod);
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printf("\t\t actual:");
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printModifiers(modifiers);
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result = STATUS_FAILED;
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}
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}
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JNIEXPORT int JNICALL
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Java_nsk_jvmti_GetFieldModifiers_getfldmdf004_getRes(JNIEnv *env, jclass cls) {
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return result;
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}
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#ifdef __cplusplus
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}
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#endif
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