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/*
* 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"
#ifdef __cplusplus
extern "C" {
#endif
#ifndef JNI_ENV_ARG
#ifdef __cplusplus
#define JNI_ENV_ARG(x, y) y
#define JNI_ENV_PTR(x) x
#else
#define JNI_ENV_ARG(x,y) x, y
#define JNI_ENV_PTR(x) (*x)
#endif
#endif
#define PASSED 0
#define STATUS_FAILED 2
#define ACC_PUBLIC 0x0001
#define ACC_PRIVATE 0x0002
#define ACC_PROTECTED 0x0004
#define ACC_STATIC 0x0008
#define ACC_FINAL 0x0010
#define ACC_SUPER 0x0020
#define ACC_VOLATILE 0x0040
#define ACC_TRANSIENT 0x0080
#define ACC_NATIVE 0x0100
#define ACC_INTERFACE 0x0200
#define ACC_ABSTRACT 0x0400
#define ACC_STRICT 0x0800
typedef struct {
char *name;
char *sig;
jboolean is_static;
} field_info;
static jvmtiEnv *jvmti = NULL;
static jint result = PASSED;
static jboolean printdump = JNI_FALSE;
static field_info fields[] = {
{ "field0", "I", JNI_FALSE },
{ "field1", "I", JNI_FALSE },
{ "field2", "I", JNI_FALSE },
{ "field3", "I", JNI_FALSE },
{ "field4", "I", JNI_FALSE },
{ "field5", "I", JNI_FALSE },
{ "field6", "I", JNI_FALSE },
{ "field7", "I", JNI_FALSE },
{ "field8", "I", JNI_FALSE },
{ "field9", "I", JNI_FALSE },
{ "field10", "I", JNI_FALSE },
{ "field11", "I", JNI_FALSE },
{ "field12", "I", JNI_FALSE },
{ "field13", "I", JNI_FALSE },
{ "field14", "I", JNI_FALSE },
{ "field15", "I", JNI_FALSE },
{ "field16", "I", JNI_FALSE },
{ "field17", "I", JNI_FALSE },
{ "field18", "I", JNI_FALSE },
{ "field19", "I", JNI_FALSE },
{ "field20", "I", JNI_FALSE },
{ "field21", "I", JNI_FALSE },
{ "field22", "I", JNI_FALSE },
{ "field23", "I", JNI_FALSE },
{ "field24", "I", JNI_TRUE },
{ "field25", "I", JNI_TRUE },
{ "field26", "I", JNI_TRUE },
{ "field27", "I", JNI_TRUE },
{ "field28", "I", JNI_TRUE },
{ "field29", "I", JNI_TRUE },
{ "field30", "I", JNI_TRUE },
{ "field31", "I", JNI_TRUE },
{ "field32", "I", JNI_TRUE },
{ "field33", "I", JNI_TRUE },
{ "field34", "I", JNI_TRUE },
{ "field35", "I", JNI_TRUE },
{ "field36", "I", JNI_TRUE },
{ "field37", "I", JNI_TRUE },
{ "field38", "I", JNI_TRUE },
{ "field39", "I", JNI_TRUE },
{ "field40", "I", JNI_TRUE },
{ "field41", "I", JNI_TRUE },
{ "field42", "I", JNI_TRUE },
{ "field43", "I", JNI_TRUE },
{ "field44", "I", JNI_TRUE },
{ "field45", "I", JNI_TRUE },
{ "field46", "I", JNI_TRUE },
{ "field47", "I", JNI_TRUE }
};
#ifdef STATIC_BUILD
JNIEXPORT jint JNICALL Agent_OnLoad_getfldmdf004(JavaVM *jvm, char *options, void *reserved) {
return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNICALL Agent_OnAttach_getfldmdf004(JavaVM *jvm, char *options, void *reserved) {
return Agent_Initialize(jvm, options, reserved);
}
JNIEXPORT jint JNI_OnLoad_getfldmdf004(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 = JNI_ENV_PTR(jvm)->GetEnv(JNI_ENV_ARG(jvm, (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;
}
void printModifiers(jint mod) {
if (mod & ACC_PUBLIC) printf(" PUBLIC");
if (mod & ACC_PRIVATE) printf(" PRIVATE");
if (mod & ACC_PROTECTED) printf(" PROTECTED");
if (mod & ACC_STATIC) printf(" STATIC");
if (mod & ACC_FINAL) printf(" FINAL");
if (mod & ACC_SUPER) printf(" SUPER");
if (mod & ACC_VOLATILE) printf(" VOLATILE");
if (mod & ACC_TRANSIENT) printf(" TRANSIENT");
if (mod & ACC_NATIVE) printf(" NATIVE");
if (mod & ACC_INTERFACE) printf(" INTERFACE");
if (mod & ACC_ABSTRACT) printf(" ABSTRACT");
if (mod & ACC_STRICT) printf(" STRICT");
printf(" (0x%0x)\n", mod);
}
JNIEXPORT void JNICALL
Java_nsk_jvmti_GetFieldModifiers_getfldmdf004_check(JNIEnv *env,
jclass cls, jint i, jint mod) {
jvmtiError err;
jfieldID fid;
jint modifiers;
if (jvmti == NULL) {
printf("JVMTI client was not properly loaded!\n");
result = STATUS_FAILED;
return;
}
if (fields[i].is_static == JNI_TRUE) {
fid = JNI_ENV_PTR(env)->GetStaticFieldID(JNI_ENV_ARG(env, cls),
fields[i].name, fields[i].sig);
} else {
fid = JNI_ENV_PTR(env)->GetFieldID(JNI_ENV_ARG(env, cls),
fields[i].name, fields[i].sig);
}
if (fid == NULL) {
printf("(%d) cannot get field ID for %s:\"%s\"\n",
i, fields[i].name, fields[i].sig);
result = STATUS_FAILED;
return;
}
err = (*jvmti)->GetFieldModifiers(jvmti, cls, fid, &modifiers);
if (err != JVMTI_ERROR_NONE) {
printf("(GetFieldModifiers#%d) unexpected error: %s (%d)\n",
i, TranslateError(err), err);
result = STATUS_FAILED;
return;
}
if (printdump == JNI_TRUE) {
printf(">>> %2d:", i);
printModifiers(modifiers);
}
if (modifiers != mod) {
printf("(%2d) access flags expected:", i);
printModifiers(mod);
printf("\t\t actual:");
printModifiers(modifiers);
result = STATUS_FAILED;
}
}
JNIEXPORT int JNICALL
Java_nsk_jvmti_GetFieldModifiers_getfldmdf004_getRes(JNIEnv *env, jclass cls) {
return result;
}
#ifdef __cplusplus
}
#endif
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