196 lines
6.0 KiB
C
196 lines
6.0 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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typedef struct {
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int class_id;
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char *name;
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char *signature;
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jboolean is_static;
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jboolean is_synthetic;
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} method_info;
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static jvmtiEnv *jvmti = NULL;
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static jvmtiCapabilities caps;
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static jint result = PASSED;
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static jboolean printdump = JNI_FALSE;
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static method_info methods[] = {
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{1, "meth_stat", "(ILjava/lang/String;)[F", JNI_TRUE, JNI_FALSE},
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{1, "meth_1", "(CCC)C", JNI_FALSE, JNI_FALSE},
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{1, "class$", "(Ljava/lang/String;)Ljava/lang/Class;", JNI_TRUE, JNI_TRUE},
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{1, "access$000",
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"(Lnsk/jvmti/IsMethodSynthetic/issynth001a;)I", JNI_TRUE, JNI_TRUE},
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{1, "nmeth", "()V", JNI_FALSE, JNI_FALSE},
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{1, "check", "(Ljava/lang/Class;Ljava/lang/Class;)I", JNI_TRUE, JNI_FALSE},
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{2, "<init>", "()V", JNI_FALSE, JNI_FALSE},
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{2, "run",
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"([Ljava/lang/String;Ljava/io/PrintStream;)I", JNI_TRUE, JNI_FALSE},
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{3, "meth_inn", "(Ljava/lang/String;J)V", JNI_FALSE, JNI_FALSE},
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};
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#ifdef STATIC_BUILD
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JNIEXPORT jint JNICALL Agent_OnLoad_issynth001(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_issynth001(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_issynth001(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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jvmtiError err;
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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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err = (*jvmti)->GetPotentialCapabilities(jvmti, &caps);
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if (err != JVMTI_ERROR_NONE) {
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printf("(GetPotentialCapabilities) unexpected error: %s (%d)\n",
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TranslateError(err), err);
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return JNI_ERR;
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}
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err = (*jvmti)->AddCapabilities(jvmti, &caps);
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if (err != JVMTI_ERROR_NONE) {
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printf("(AddCapabilities) unexpected error: %s (%d)\n",
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TranslateError(err), err);
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return JNI_ERR;
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}
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err = (*jvmti)->GetCapabilities(jvmti, &caps);
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if (err != JVMTI_ERROR_NONE) {
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printf("(GetCapabilities) unexpected error: %s (%d)\n",
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TranslateError(err), err);
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return JNI_ERR;
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}
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if (!caps.can_get_synthetic_attribute) {
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printf("Warning: IsMethodSynthetic is not implemented\n");
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}
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return JNI_OK;
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}
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char const *jbooleanToString(jboolean flag) {
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return ((flag == JNI_TRUE) ? "true" : "false");
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}
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JNIEXPORT jint JNICALL
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Java_nsk_jvmti_IsMethodSynthetic_issynth001a_check(JNIEnv *env,
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jclass cls1, jclass cls2, jclass cls3) {
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jvmtiError err;
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jclass cl;
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jmethodID mid;
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jboolean is_synthetic;
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size_t i;
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if (!caps.can_get_synthetic_attribute) {
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return result;
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}
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for (i = 0; i < sizeof(methods)/sizeof(method_info); i++) {
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cl = ((methods[i].class_id == 1) ? cls1 :
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((methods[i].class_id == 2) ? cls2 : cls3));
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if (methods[i].is_static == JNI_TRUE) {
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mid = JNI_ENV_PTR(env)->GetStaticMethodID(JNI_ENV_ARG(env, cl),
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methods[i].name, methods[i].signature);
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} else {
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mid = JNI_ENV_PTR(env)->GetMethodID(JNI_ENV_ARG(env, cl),
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methods[i].name, methods[i].signature);
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}
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if (mid == NULL) {
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printf("Cannot find MethodID for \"%s%s\"\n",
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methods[i].name, methods[i].signature);
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result = STATUS_FAILED;
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continue;
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}
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err = (*jvmti)->IsMethodSynthetic(jvmti, mid, &is_synthetic);
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if (err != JVMTI_ERROR_NONE) {
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printf("(IsMethodSynthetic) unexpected error: %s (%d)\n",
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TranslateError(err), err);
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result = STATUS_FAILED;
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}
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if (printdump == JNI_TRUE) {
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printf(">>> %s%s - %s\n", methods[i].name, methods[i].signature,
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jbooleanToString(is_synthetic));
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}
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if (is_synthetic != methods[i].is_synthetic) {
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printf("(%s%s) wrong is_synthetic value: %s, expected: %s\n",
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methods[i].name, methods[i].signature,
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jbooleanToString(is_synthetic),
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jbooleanToString(methods[i].is_synthetic));
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result = STATUS_FAILED;
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}
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}
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return result;
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}
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JNIEXPORT void JNICALL
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Java_nsk_jvmti_IsMethodSynthetic_issynth001a_nmeth(JNIEnv *env, jclass cls) {
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}
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#ifdef __cplusplus
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}
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#endif
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