831 lines
27 KiB
C++
831 lines
27 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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#include "jni_tools.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 *name;
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const char *sig;
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jint value;
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} var_info;
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typedef struct {
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jboolean isObsolete;
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const char *name;
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const char *sig;
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jint line;
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jint count;
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var_info *vars;
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const char *desc;
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} frame_info;
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static jvmtiEnv *jvmti = NULL;
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static jvmtiCapabilities caps;
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static jvmtiEventCallbacks callbacks;
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static jint result = PASSED;
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static jboolean printdump = JNI_FALSE;
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static jbyteArray classBytes;
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static jmethodID midRun = NULL;
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static jmethodID mid1 = NULL;
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static jmethodID mid2 = NULL;
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static jfieldID fid1 = NULL;
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static jfieldID fid2 = NULL;
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static jint stepEventsExpected = 0;
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static jint bpEventsExpected = 0;
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static jint popEventsExpected = 0;
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static jint accessEventsExpected = 0;
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static jint modificationEventsExpected = 0;
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static jint exceptionEventsExpected = 0;
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static jint catchEventsExpected = 0;
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static jint stepEventsCount = 0;
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static jint bpEventsCount = 0;
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static jint popEventsCount = 0;
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static jint accessEventsCount = 0;
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static jint modificationEventsCount = 0;
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static jint exceptionEventsCount = 0;
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static jint catchEventsCount = 0;
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static jint redefinesCount = 0;
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static const char *cls_exp = "Lnsk/jvmti/RedefineClasses/redefclass027a;";
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static var_info run[] = {
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{ "this", "Lnsk/jvmti/RedefineClasses/redefclass027a;", 0 },
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{ "localInt1", "I", 1 }
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};
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static var_info method1[] = {
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{ "this", "Lnsk/jvmti/RedefineClasses/redefclass027a;", 0 },
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{ "argInt1", "I", 10 },
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{ "localInt2", "I", 2 },
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{ "ex", "Ljava/lang/Exception;", 0 }
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};
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static var_info pop[] = {
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{ "this", "Lnsk/jvmti/RedefineClasses/redefclass027a;", 0 },
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{ "argInt1", "I", 10 },
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{ "localInt2", "I", 2 },
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{ "ex", "Ljava/lang/Exception;", 0 }
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};
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static var_info method2[] = {
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{ "this", "Lnsk/jvmti/RedefineClasses/redefclass027a;", 0 },
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{ "argInt2", "I", 20 },
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{ "localInt4", "I", 4 }
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};
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static frame_info frames[] = {
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{ JNI_FALSE, "run", "()V", 97, 2, run, "bp" },
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{ JNI_FALSE, "run", "()V", 97, 2, run, "step" },
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{ JNI_FALSE, "run", "()V", 99, 2, run, "mod" },
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{ JNI_FALSE, "method2", "(I)V", 116, 3, method2, "acc" },
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{ JNI_FALSE, "method2", "(I)V", 117, 3, method2, "exc" },
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{ JNI_FALSE, "method1", "(I)V", 108, 4, method1, "catch" },
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{ JNI_FALSE, "method1", "(I)V", 112, 4, pop, "pop" },
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};
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void check(jvmtiEnv *jvmti_env, jthread thr, jclass cls, jmethodID mid,
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jlocation loc, jint i) {
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jvmtiError err;
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char *sigClass, *name = NULL, *sig = NULL, *generic;
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const char *desc;
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jboolean is_obsolete;
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jvmtiLineNumberEntry *lines = NULL;
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jvmtiLocalVariableEntry *table = NULL;
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jint line = -1;
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jint entryCount = 0;
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jint varValue = -1;
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jint j, k;
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char buffer[32];
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if (i >= (jint) (sizeof(frames)/sizeof(frame_info))) {
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printf("%d -- too many frames\n", i);
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result = STATUS_FAILED;
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return;
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}
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desc = frames[i].desc;
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err = jvmti_env->GetClassSignature(cls, &sigClass, &generic);
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if (err != JVMTI_ERROR_NONE) {
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printf("(GetClassSignature#%s) unexpected error: %s (%d)\n",
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desc, TranslateError(err), err);
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result = STATUS_FAILED;
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}
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if (sigClass == NULL || strcmp(sigClass, cls_exp) != 0) {
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printf("(%s) wrong class sig: \"%s\",", desc, sigClass);
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printf(" expected: \"%s\"\n", cls_exp);
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if (sigClass != NULL) {
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jvmti_env->Deallocate((unsigned char *)sigClass);
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}
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result = STATUS_FAILED;
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} else {
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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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printf("(GetMethodName#%s) unexpected error: %s (%d)\n",
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desc, TranslateError(err), err);
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result = STATUS_FAILED;
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}
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err = jvmti_env->IsMethodObsolete(mid, &is_obsolete);
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if (err != JVMTI_ERROR_NONE) {
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printf("(IsMethodObsolete#%s) unexpected error: %s (%d)\n",
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desc, 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%s\"%s", desc, sigClass, name, sig,
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(is_obsolete == JNI_TRUE) ? " (obsolete)" : "");
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printf(", location=%s\n", jlong_to_string(loc, buffer));
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}
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if (frames[i].isObsolete != is_obsolete) {
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printf("(%s) %s obsolete method\n", desc,
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(is_obsolete == JNI_TRUE) ? "unexpected" : "should be");
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result = STATUS_FAILED;
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}
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if (name == NULL || strcmp(name, frames[i].name) != 0) {
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printf("(%s) wrong method name: \"%s\",", desc, name);
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printf(" expected: \"%s\"\n", frames[i].name);
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result = STATUS_FAILED;
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}
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if (sig == NULL || strcmp(sig, frames[i].sig) != 0) {
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printf("(%s) wrong method sig: \"%s\",", desc, sig);
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printf(" expected: \"%s\"\n", frames[i].sig);
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result = STATUS_FAILED;
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}
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err = jvmti_env->GetLineNumberTable(mid,
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&entryCount, &lines);
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if (err != JVMTI_ERROR_NONE) {
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printf("(GetLineNumberTable#%s) unexpected error: %s (%d)\n",
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desc, TranslateError(err), err);
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result = STATUS_FAILED;
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}
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if (lines != NULL && entryCount > 0) {
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for (k = 0; k < entryCount; k++) {
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if (loc < lines[k].start_location) {
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break;
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}
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}
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line = lines[k-1].line_number;
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}
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if (line != frames[i].line) {
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printf("(%s) wrong line number: %d, expected: %d\n",
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desc, line, frames[i].line);
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result = STATUS_FAILED;
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}
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err = jvmti_env->GetLocalVariableTable(mid,
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&entryCount, &table);
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if (err != JVMTI_ERROR_NONE) {
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printf("(GetLocalVariableTable#%s) unexpected error: %s (%d)\n",
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desc, TranslateError(err), err);
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result = STATUS_FAILED;
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}
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if (frames[i].count != entryCount) {
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printf("(%s) wrong number of locals: %d, expected: %d\n",
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desc, entryCount, frames[i].count);
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result = STATUS_FAILED;
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}
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if (table != NULL) {
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for (k = 0; k < frames[i].count; k++) {
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for (j = 0; j < entryCount; j++) {
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if (strcmp(table[j].name, frames[i].vars[k].name) == 0 &&
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strcmp(table[j].signature, frames[i].vars[k].sig) == 0) {
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if (printdump == JNI_TRUE) {
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printf(">>> var \"%s:%s\": ",
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table[j].name, table[j].signature);
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printf("start_location=%s, length=%d",
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jlong_to_string(table[j].start_location, buffer),
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table[j].length);
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}
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if (table[j].signature[0] == 'I' &&
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loc >= table[j].start_location &&
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loc <= (table[j].start_location + table[j].length)) {
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err = jvmti_env->GetLocalInt(thr,
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0, table[j].slot, &varValue);
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if (err != JVMTI_ERROR_NONE) {
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printf("(GetLocalInt#%s) unexpected error: %s (%d)\n",
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desc, TranslateError(err), err);
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result = STATUS_FAILED;
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}
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else {
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if (printdump == JNI_TRUE) {
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printf(", tvalue=%d\n", varValue);
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}
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if (varValue != frames[i].vars[k].value) {
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printf("(%s) wrong local var \"%s:%s\" value: %d,",
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desc, table[j].name, table[j].signature,
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varValue);
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printf(" expected: %d\n", frames[i].vars[k].value);
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result = STATUS_FAILED;
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}
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}
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} else if (printdump == JNI_TRUE) {
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printf("\n");
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}
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break;
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}
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}
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if (j == entryCount) {
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printf("(%s) var \"%s %s\" not found\n",
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desc, frames[i].vars[k].name, frames[i].vars[k].sig);
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result = STATUS_FAILED;
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}
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}
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}
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}
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if (sigClass != NULL) {
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jvmti_env->Deallocate((unsigned char *)sigClass);
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}
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if (name != NULL) {
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jvmti_env->Deallocate((unsigned char *)name);
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}
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if (sig != NULL) {
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jvmti_env->Deallocate((unsigned char *)sig);
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}
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if (lines != NULL) {
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jvmti_env->Deallocate((unsigned char *)lines);
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}
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if (table != NULL) {
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for (j = 0; j < entryCount; j++) {
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jvmti_env->Deallocate((unsigned char *)(table[j].name));
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jvmti_env->Deallocate((unsigned char *)(table[j].signature));
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}
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jvmti_env->Deallocate((unsigned char *)table);
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}
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}
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void redefine(jvmtiEnv *jvmti_env, JNIEnv *env, jclass cls) {
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jvmtiClassDefinition classDef;
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jvmtiError err;
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classDef.klass = cls;
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classDef.class_byte_count = env->GetArrayLength(classBytes);
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classDef.class_bytes = (unsigned char *) env->GetByteArrayElements(classBytes, NULL);
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if (printdump == JNI_TRUE) {
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printf(">>> about to call RedefineClasses %d\n", redefinesCount);
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}
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err = jvmti_env->RedefineClasses(1, &classDef);
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if (err != JVMTI_ERROR_NONE) {
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printf("(RedefineClasses#%d) unexpected error: %s (%d)\n",
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redefinesCount, TranslateError(err), err);
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result = STATUS_FAILED;
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}
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redefinesCount++;
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}
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void JNICALL Breakpoint(jvmtiEnv *jvmti_env, JNIEnv *env,
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jthread thread, jmethodID method, jlocation location) {
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jvmtiError err;
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jclass klass;
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if (midRun != method) {
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printf("bp: don't know where we get called from\n");
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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(">>> breakpoint in \"run\"\n");
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}
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err = jvmti_env->GetMethodDeclaringClass(method, &klass);
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if (err != JVMTI_ERROR_NONE) {
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printf("(GetMethodDeclaringClass) unexpected error: %s (%d)\n",
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TranslateError(err), err);
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result = STATUS_FAILED;
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return;
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}
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check(jvmti_env, thread, klass, method, location, 0);
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bpEventsCount++;
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err = jvmti_env->ClearBreakpoint(midRun, 0);
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if (err != JVMTI_ERROR_NONE) {
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printf("(ClearBreakpoint) 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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redefine(jvmti_env, (JNIEnv *)env, klass);
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err = jvmti_env->SetEventNotificationMode(JVMTI_ENABLE,
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JVMTI_EVENT_SINGLE_STEP, thread);
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if (err == JVMTI_ERROR_NONE) {
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stepEventsExpected++;
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} else {
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printf("Cannot enable single step: %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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}
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void JNICALL SingleStep(jvmtiEnv *jvmti_env, JNIEnv *env, jthread thread,
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jmethodID method, jlocation location) {
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jvmtiError err;
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jclass klass;
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if (midRun != method) {
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printf("step: don't know where we get called from\n");
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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(">>> single step in \"run\"\n");
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}
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err = jvmti_env->GetMethodDeclaringClass(method, &klass);
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if (err != JVMTI_ERROR_NONE) {
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printf("(GetMethodDeclaringClass) unexpected error: %s (%d)\n",
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TranslateError(err), err);
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result = STATUS_FAILED;
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return;
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}
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check(jvmti_env, thread, klass, method, location, 1);
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stepEventsCount++;
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err = jvmti_env->SetEventNotificationMode(JVMTI_DISABLE,
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JVMTI_EVENT_SINGLE_STEP, thread);
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if (err != JVMTI_ERROR_NONE) {
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printf("Cannot disable single step: %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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redefine(jvmti_env, (JNIEnv *)env, klass);
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|
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if (caps.can_generate_exception_events) {
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err = jvmti_env->SetEventNotificationMode(JVMTI_ENABLE,
|
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JVMTI_EVENT_EXCEPTION, thread);
|
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if (err == JVMTI_ERROR_NONE) {
|
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exceptionEventsExpected++;
|
|
} else {
|
|
printf("Cannot enable exception: %s (%d)\n",
|
|
TranslateError(err), err);
|
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result = STATUS_FAILED;
|
|
}
|
|
}
|
|
}
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|
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void JNICALL FieldModification(jvmtiEnv *jvmti_env, JNIEnv *env,
|
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jthread thread, jmethodID method, jlocation location,
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jclass field_klass, jobject obj, jfieldID field, char sig, jvalue new_value) {
|
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jvmtiError err;
|
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jclass klass;
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|
|
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if (printdump == JNI_TRUE) {
|
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printf(">>> field modification\n");
|
|
}
|
|
|
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err = jvmti_env->GetMethodDeclaringClass(method, &klass);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("(GetMethodDeclaringClass) unexpected error: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
result = STATUS_FAILED;
|
|
return;
|
|
}
|
|
|
|
check(jvmti_env, thread, klass, method, location, 2);
|
|
modificationEventsCount++;
|
|
|
|
redefine(jvmti_env, (JNIEnv *)env, klass);
|
|
}
|
|
|
|
void JNICALL FieldAccess(jvmtiEnv *jvmti_env, JNIEnv *env,
|
|
jthread thread, jmethodID method, jlocation location,
|
|
jclass field_klass, jobject obj, jfieldID field) {
|
|
jvmtiError err;
|
|
jclass klass;
|
|
|
|
if (printdump == JNI_TRUE) {
|
|
printf(">>> field access\n");
|
|
}
|
|
|
|
err = jvmti_env->GetMethodDeclaringClass(method, &klass);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("(GetMethodDeclaringClass) unexpected error: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
result = STATUS_FAILED;
|
|
return;
|
|
}
|
|
|
|
check(jvmti_env, thread, klass, method, location, 3);
|
|
accessEventsCount++;
|
|
|
|
redefine(jvmti_env, (JNIEnv *)env, klass);
|
|
}
|
|
|
|
void JNICALL Exception(jvmtiEnv *jvmti_env, JNIEnv *env, jthread thread,
|
|
jmethodID method, jlocation location, jobject exception,
|
|
jmethodID catch_method, jlocation catch_location) {
|
|
jvmtiError err;
|
|
jclass klass;
|
|
|
|
if (printdump == JNI_TRUE) {
|
|
printf(">>> exception\n");
|
|
}
|
|
|
|
err = jvmti_env->GetMethodDeclaringClass(method, &klass);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("(GetMethodDeclaringClass) unexpected error: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
result = STATUS_FAILED;
|
|
return;
|
|
}
|
|
|
|
check(jvmti_env, thread, klass, method, location, 4);
|
|
exceptionEventsCount++;
|
|
|
|
err = jvmti_env->SetEventNotificationMode(JVMTI_DISABLE,
|
|
JVMTI_EVENT_EXCEPTION, thread);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("Cannot disable exception: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
result = STATUS_FAILED;
|
|
}
|
|
|
|
redefine(jvmti_env, (JNIEnv *)env, klass);
|
|
|
|
err = jvmti_env->SetEventNotificationMode(JVMTI_ENABLE,
|
|
JVMTI_EVENT_EXCEPTION_CATCH, thread);
|
|
if (err == JVMTI_ERROR_NONE) {
|
|
catchEventsExpected++;
|
|
} else {
|
|
printf("Cannot enable exception catch: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
result = STATUS_FAILED;
|
|
}
|
|
}
|
|
|
|
void JNICALL ExceptionCatch(jvmtiEnv *jvmti_env, JNIEnv *env,
|
|
jthread thread, jmethodID method, jlocation location, jobject exception) {
|
|
jvmtiError err;
|
|
jclass klass;
|
|
|
|
if (printdump == JNI_TRUE) {
|
|
printf(">>> catch\n");
|
|
}
|
|
|
|
err = jvmti_env->GetMethodDeclaringClass(method, &klass);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("(GetMethodDeclaringClass) unexpected error: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
result = STATUS_FAILED;
|
|
return;
|
|
}
|
|
|
|
check(jvmti_env, thread, klass, method, location, 5);
|
|
catchEventsCount++;
|
|
|
|
redefine(jvmti_env, (JNIEnv *)env, klass);
|
|
|
|
err = jvmti_env->SetEventNotificationMode(JVMTI_DISABLE,
|
|
JVMTI_EVENT_EXCEPTION_CATCH, thread);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("Cannot disable exception catch: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
result = STATUS_FAILED;
|
|
}
|
|
|
|
if (caps.can_generate_frame_pop_events) {
|
|
err = jvmti_env->SetEventNotificationMode(JVMTI_ENABLE,
|
|
JVMTI_EVENT_FRAME_POP, NULL);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("Failed to enable FRAME_POP event: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
result = STATUS_FAILED;
|
|
} else {
|
|
err = jvmti_env->NotifyFramePop(thread, 0);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("(NotifyFramePop) unexpected error: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
result = STATUS_FAILED;
|
|
} else {
|
|
popEventsExpected++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void JNICALL FramePop(jvmtiEnv *jvmti_env, JNIEnv *env, jthread thread,
|
|
jmethodID method, jboolean wasPopedByException) {
|
|
jvmtiError err;
|
|
jclass klass;
|
|
jmethodID mid;
|
|
jlocation loc;
|
|
|
|
if (printdump == JNI_TRUE) {
|
|
printf(">>> frame pop\n");
|
|
}
|
|
|
|
err = jvmti_env->GetFrameLocation(thread, 0, &mid, &loc);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("(GetFrameLocation#pop) unexpected error: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
result = STATUS_FAILED;
|
|
}
|
|
|
|
err = jvmti_env->GetMethodDeclaringClass(method, &klass);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("(GetMethodDeclaringClass) unexpected error: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
result = STATUS_FAILED;
|
|
return;
|
|
}
|
|
|
|
check(jvmti_env, thread, klass, method, loc, 6);
|
|
popEventsCount++;
|
|
|
|
redefine(jvmti_env, (JNIEnv *)env, klass);
|
|
}
|
|
|
|
#ifdef STATIC_BUILD
|
|
JNIEXPORT jint JNICALL Agent_OnLoad_redefclass027(JavaVM *jvm, char *options, void *reserved) {
|
|
return Agent_Initialize(jvm, options, reserved);
|
|
}
|
|
JNIEXPORT jint JNICALL Agent_OnAttach_redefclass027(JavaVM *jvm, char *options, void *reserved) {
|
|
return Agent_Initialize(jvm, options, reserved);
|
|
}
|
|
JNIEXPORT jint JNI_OnLoad_redefclass027(JavaVM *jvm, char *options, void *reserved) {
|
|
return JNI_VERSION_1_8;
|
|
}
|
|
#endif
|
|
jint Agent_Initialize(JavaVM *jvm, char *options, void *reserved) {
|
|
jvmtiError err;
|
|
jint res;
|
|
|
|
if (options != NULL && strcmp(options, "printdump") == 0) {
|
|
printdump = JNI_TRUE;
|
|
}
|
|
|
|
res = jvm->GetEnv((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;
|
|
}
|
|
|
|
err = jvmti->GetPotentialCapabilities(&caps);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("(GetPotentialCapabilities) unexpected error: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
return JNI_ERR;
|
|
}
|
|
|
|
err = jvmti->AddCapabilities(&caps);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("(AddCapabilities) unexpected error: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
return JNI_ERR;
|
|
}
|
|
|
|
err = jvmti->GetCapabilities(&caps);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("(GetCapabilities) unexpected error: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
return JNI_ERR;
|
|
}
|
|
|
|
if (!caps.can_redefine_classes) {
|
|
printf("Warning: RedefineClasses is not implemented\n");
|
|
}
|
|
|
|
if (!caps.can_get_line_numbers) {
|
|
printf("Warning: GetLineNumberTable is not implemented\n");
|
|
}
|
|
|
|
if (!caps.can_access_local_variables) {
|
|
printf("Warning: access to local variables is not implemented\n");
|
|
}
|
|
|
|
if (caps.can_redefine_classes) {
|
|
if (caps.can_generate_breakpoint_events) {
|
|
callbacks.Breakpoint = &Breakpoint;
|
|
} else {
|
|
printf("Warning: Breakpoint event is not implemented\n");
|
|
}
|
|
if (caps.can_generate_single_step_events) {
|
|
callbacks.SingleStep = &SingleStep;
|
|
} else {
|
|
printf("Warning: SingleStep event is not implemented\n");
|
|
}
|
|
if (caps.can_generate_exception_events) {
|
|
callbacks.Exception = &Exception;
|
|
callbacks.ExceptionCatch = &ExceptionCatch;
|
|
} else {
|
|
printf("Warning: exception events are not implemented\n");
|
|
}
|
|
if (caps.can_generate_frame_pop_events) {
|
|
callbacks.FramePop = &FramePop;
|
|
} else {
|
|
printf("Warning: FramePop event is not implemented\n");
|
|
}
|
|
if (caps.can_generate_field_access_events) {
|
|
callbacks.FieldAccess = &FieldAccess;
|
|
} else {
|
|
printf("Warning: FieldAccess event is not implemented\n");
|
|
}
|
|
if (caps.can_generate_field_modification_events) {
|
|
callbacks.FieldModification = &FieldModification;
|
|
} else {
|
|
printf("Warning: FieldModification event is not implemented\n");
|
|
}
|
|
err = jvmti->SetEventCallbacks(&callbacks, sizeof(callbacks));
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("(SetEventCallbacks) unexpected error: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
return JNI_ERR;
|
|
}
|
|
}
|
|
|
|
return JNI_OK;
|
|
}
|
|
|
|
JNIEXPORT void JNICALL
|
|
Java_nsk_jvmti_RedefineClasses_redefclass027_getReady(JNIEnv *env, jclass cls,
|
|
jclass clazz, jbyteArray bytes) {
|
|
jvmtiError err;
|
|
|
|
if (jvmti == NULL) {
|
|
printf("JVMTI client was not properly loaded!\n");
|
|
result = STATUS_FAILED;
|
|
return;
|
|
}
|
|
|
|
if (!caps.can_redefine_classes ||
|
|
!caps.can_get_line_numbers ||
|
|
!caps.can_access_local_variables) return;
|
|
|
|
classBytes = (jbyteArray) env->NewGlobalRef(bytes);
|
|
|
|
midRun = env->GetMethodID(clazz, "run", "()V");
|
|
if (midRun == NULL) {
|
|
printf("Cannot find Method ID for method run\n");
|
|
result = STATUS_FAILED;
|
|
}
|
|
|
|
mid1 = env->GetMethodID(clazz, "method1", "(I)V");
|
|
if (mid1 == NULL) {
|
|
printf("Cannot find Method ID for method1\n");
|
|
result = STATUS_FAILED;
|
|
}
|
|
|
|
mid2 = env->GetMethodID(clazz, "method2", "(I)V");
|
|
if (mid2 == NULL) {
|
|
printf("Cannot find Method ID for method2\n");
|
|
result = STATUS_FAILED;
|
|
}
|
|
|
|
if (caps.can_generate_breakpoint_events && midRun != NULL) {
|
|
err = jvmti->SetBreakpoint(midRun, 0);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("(SetBreakpoint) unexpected error: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
result = STATUS_FAILED;
|
|
} else {
|
|
err = jvmti->SetEventNotificationMode(JVMTI_ENABLE,
|
|
JVMTI_EVENT_BREAKPOINT, NULL);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("Failed to enable BREAKPOINT event: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
result = STATUS_FAILED;
|
|
} else {
|
|
bpEventsExpected++;
|
|
}
|
|
}
|
|
}
|
|
|
|
fid1 = env->GetStaticFieldID(clazz, "staticInt", "I");
|
|
if (fid1 == NULL) {
|
|
printf("Cannot find Field ID for staticInt\n");
|
|
result = STATUS_FAILED;
|
|
}
|
|
|
|
if (caps.can_generate_field_modification_events && fid1 != NULL) {
|
|
err = jvmti->SetFieldModificationWatch(clazz, fid1);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("(SetFieldModificationWatch) unexpected error: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
result = STATUS_FAILED;
|
|
} else {
|
|
err = jvmti->SetEventNotificationMode(JVMTI_ENABLE,
|
|
JVMTI_EVENT_FIELD_MODIFICATION, NULL);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("Failed to enable FIELD_MODIFICATION event: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
result = STATUS_FAILED;
|
|
} else {
|
|
modificationEventsExpected++;
|
|
}
|
|
}
|
|
}
|
|
|
|
fid2 = env->GetFieldID(clazz, "instanceInt", "I");
|
|
if (fid2 == NULL) {
|
|
printf("Cannot find Field ID for instanceInt\n");
|
|
result = STATUS_FAILED;
|
|
}
|
|
|
|
if (caps.can_generate_field_access_events && fid2 != NULL) {
|
|
err = jvmti->SetFieldAccessWatch(clazz, fid2);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("(SetFieldAccessWatch) unexpected error: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
result = STATUS_FAILED;
|
|
} else {
|
|
err = jvmti->SetEventNotificationMode(JVMTI_ENABLE,
|
|
JVMTI_EVENT_FIELD_ACCESS, NULL);
|
|
if (err != JVMTI_ERROR_NONE) {
|
|
printf("Failed to enable FIELD_ACCESS event: %s (%d)\n",
|
|
TranslateError(err), err);
|
|
result = STATUS_FAILED;
|
|
} else {
|
|
accessEventsExpected++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
JNIEXPORT jint JNICALL
|
|
Java_nsk_jvmti_RedefineClasses_redefclass027_check(JNIEnv *env, jclass cls) {
|
|
if (bpEventsCount != bpEventsExpected) {
|
|
printf("Wrong number of breakpoint events: %d, expected: %d\n",
|
|
bpEventsCount, bpEventsExpected);
|
|
result = STATUS_FAILED;
|
|
}
|
|
if (stepEventsCount != stepEventsExpected) {
|
|
printf("Wrong number of step events: %d, expected: %d\n",
|
|
stepEventsCount, stepEventsExpected);
|
|
result = STATUS_FAILED;
|
|
}
|
|
if (modificationEventsCount != modificationEventsExpected) {
|
|
printf("Wrong number of modification watch events: %d, expected: %d\n",
|
|
modificationEventsCount, modificationEventsExpected);
|
|
result = STATUS_FAILED;
|
|
}
|
|
if (accessEventsCount != accessEventsExpected) {
|
|
printf("Wrong number of access watch events: %d, expected: %d\n",
|
|
accessEventsCount, accessEventsExpected);
|
|
result = STATUS_FAILED;
|
|
}
|
|
if (exceptionEventsCount != exceptionEventsExpected) {
|
|
printf("Wrong number of exception events: %d, expected: %d\n",
|
|
exceptionEventsCount, exceptionEventsExpected);
|
|
result = STATUS_FAILED;
|
|
}
|
|
if (catchEventsCount != catchEventsExpected) {
|
|
printf("Wrong number of catch exception events: %d, expected: %d\n",
|
|
catchEventsCount, catchEventsExpected);
|
|
result = STATUS_FAILED;
|
|
}
|
|
if (popEventsCount != popEventsExpected) {
|
|
printf("Wrong number of frame pop events: %d, expected: %d\n",
|
|
popEventsCount, popEventsExpected);
|
|
result = STATUS_FAILED;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
}
|