128 lines
3.9 KiB
C++
128 lines
3.9 KiB
C++
/*
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* Copyright (c) 2003, 2022, 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 "jvmti_common.h"
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extern "C" {
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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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const char *cls_sig;
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const char *name;
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const char *sig;
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jlocation loc;
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} frame_info;
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static jvmtiEnv *jvmti_env = NULL;
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static jint result = PASSED;
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static frame_info fi =
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{"Lframeloc02;", "check",
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"(Ljava/lang/Thread;)I", -1};
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JNIEXPORT jint JNICALL
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Agent_OnLoad(JavaVM *jvm, char *options, void *reserved) {
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jint res = jvm->GetEnv((void **) &jvmti_env, JVMTI_VERSION_1_1);
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if (res != JNI_OK || jvmti_env == NULL) {
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LOG("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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JNIEXPORT jint JNICALL
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Java_frameloc02_check(JNIEnv *env, jclass cls, jthread thr) {
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jvmtiError err;
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jclass klass;
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jmethodID mid;
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jlocation loc;
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char *cls_sig, *name, *sig, *generic;
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char buffer[32];
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LOG(">>> acquiring frame location ...\n");
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err = jvmti_env->GetFrameLocation(thr, 0, &mid, &loc);
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if (err != JVMTI_ERROR_NONE) {
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LOG("(GetFrameLocation) unexpected error: %s (%d)\n", TranslateError(err), err);
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result = STATUS_FAILED;
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return result;
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}
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LOG(">>> retrieving class/method info ...\n");
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err = jvmti_env->GetMethodDeclaringClass(mid, &klass);
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if (err != JVMTI_ERROR_NONE) {
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LOG("(GetMethodDeclaringClass) unexpected error: %s (%d)\n", TranslateError(err), err);
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result = STATUS_FAILED;
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return result;
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}
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err = jvmti_env->GetClassSignature(klass, &cls_sig, &generic);
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if (err != JVMTI_ERROR_NONE) {
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LOG("(GetClassSignature) unexpected error: %s (%d)\n", TranslateError(err), err);
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result = STATUS_FAILED;
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return result;
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}
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err = jvmti_env->GetMethodName(mid, &name, &sig, &generic);
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if (err != JVMTI_ERROR_NONE) {
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LOG("(GetMethodName) unexpected error: %s (%d)\n", TranslateError(err), err);
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result = STATUS_FAILED;
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return result;
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}
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LOG(">>> class: \"%s\"\n", cls_sig);
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LOG(">>> method: \"%s%s\"\n", name, sig);
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LOG(">>> location: %s\n", jlong_to_string(loc, buffer));
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if (cls_sig == NULL || strcmp(cls_sig, fi.cls_sig) != 0) {
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LOG("(GetFrameLocation) wrong class: \"%s\"\n", cls_sig);
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LOG(", expected: \"%s\"\n", fi.cls_sig);
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result = STATUS_FAILED;
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}
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if (name == NULL || strcmp(name, fi.name) != 0) {
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LOG("(GetFrameLocation) wrong method name: \"%s\"", name);
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LOG(", expected: \"%s\"\n", fi.name);
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result = STATUS_FAILED;
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}
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if (sig == NULL || strcmp(sig, fi.sig) != 0) {
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LOG("(GetFrameLocation) wrong method signature: \"%s\"", sig);
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LOG(", expected: \"%s\"\n", fi.sig);
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result = STATUS_FAILED;
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}
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if (loc != fi.loc) {
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LOG("(GetFrameLocation) wrong location: %s", jlong_to_string(loc, buffer));
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LOG(", expected: %s\n", jlong_to_string(fi.loc, buffer));
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result = STATUS_FAILED;
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}
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LOG(">>> ... done\n");
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return result;
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}
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}
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