/*
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* Copyright (c) 1998, 2005, 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. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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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 "util.h"
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#include "MethodImpl.h"
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#include "inStream.h"
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#include "outStream.h"
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static jboolean
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lineTable(PacketInputStream *in, PacketOutputStream *out)
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{
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jvmtiError error;
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jint count = 0;
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jvmtiLineNumberEntry *table = NULL;
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jmethodID method;
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jlocation firstCodeIndex;
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jlocation lastCodeIndex;
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jboolean isNative;
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/* JVMDI needed the class, but JVMTI does not so we ignore it */
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(void)inStream_readClassRef(getEnv(), in);
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if (inStream_error(in)) {
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return JNI_TRUE;
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}
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method = inStream_readMethodID(in);
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if (inStream_error(in)) {
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return JNI_TRUE;
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}
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/*
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* JVMTI behavior for the calls below is unspecified for native
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* methods, so we must check explicitly.
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*/
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isNative = isMethodNative(method);
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if (isNative) {
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outStream_setError(out, JDWP_ERROR(NATIVE_METHOD));
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return JNI_TRUE;
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}
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error = methodLocation(method, &firstCodeIndex, &lastCodeIndex);
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if (error != JVMTI_ERROR_NONE) {
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outStream_setError(out, map2jdwpError(error));
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return JNI_TRUE;
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}
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(void)outStream_writeLocation(out, firstCodeIndex);
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(void)outStream_writeLocation(out, lastCodeIndex);
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error = JVMTI_FUNC_PTR(gdata->jvmti,GetLineNumberTable)
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(gdata->jvmti, method, &count, &table);
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if (error == JVMTI_ERROR_ABSENT_INFORMATION) {
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/*
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* Indicate no line info with an empty table. The code indices
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* are still useful, so we don't want to return an error
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*/
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(void)outStream_writeInt(out, 0);
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} else if (error == JVMTI_ERROR_NONE) {
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jint i;
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(void)outStream_writeInt(out, count);
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for (i = 0; (i < count) && !outStream_error(out); i++) {
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(void)outStream_writeLocation(out, table[i].start_location);
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(void)outStream_writeInt(out, table[i].line_number);
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}
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jvmtiDeallocate(table);
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} else {
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outStream_setError(out, map2jdwpError(error));
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}
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return JNI_TRUE;
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}
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static jboolean
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doVariableTable(PacketInputStream *in, PacketOutputStream *out,
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int outputGenerics)
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{
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jvmtiError error;
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jint count;
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jvmtiLocalVariableEntry *table;
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jmethodID method;
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jint argsSize;
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jboolean isNative;
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/* JVMDI needed the class, but JVMTI does not so we ignore it */
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(void)inStream_readClassRef(getEnv(), in);
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if (inStream_error(in)) {
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return JNI_TRUE;
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}
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method = inStream_readMethodID(in);
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if (inStream_error(in)) {
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return JNI_TRUE;
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}
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/*
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* JVMTI behavior for the calls below is unspecified for native
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* methods, so we must check explicitly.
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*/
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isNative = isMethodNative(method);
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if (isNative) {
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outStream_setError(out, JDWP_ERROR(NATIVE_METHOD));
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return JNI_TRUE;
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}
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error = JVMTI_FUNC_PTR(gdata->jvmti,GetArgumentsSize)
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(gdata->jvmti, method, &argsSize);
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if (error != JVMTI_ERROR_NONE) {
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outStream_setError(out, map2jdwpError(error));
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return JNI_TRUE;
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}
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error = JVMTI_FUNC_PTR(gdata->jvmti,GetLocalVariableTable)
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(gdata->jvmti, method, &count, &table);
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if (error == JVMTI_ERROR_NONE) {
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jint i;
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(void)outStream_writeInt(out, argsSize);
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(void)outStream_writeInt(out, count);
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for (i = 0; (i < count) && !outStream_error(out); i++) {
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jvmtiLocalVariableEntry *entry = &table[i];
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(void)outStream_writeLocation(out, entry->start_location);
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(void)outStream_writeString(out, entry->name);
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(void)outStream_writeString(out, entry->signature);
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if (outputGenerics == 1) {
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writeGenericSignature(out, entry->generic_signature);
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}
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(void)outStream_writeInt(out, entry->length);
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(void)outStream_writeInt(out, entry->slot);
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jvmtiDeallocate(entry->name);
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jvmtiDeallocate(entry->signature);
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if (entry->generic_signature != NULL) {
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jvmtiDeallocate(entry->generic_signature);
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}
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}
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jvmtiDeallocate(table);
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} else {
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outStream_setError(out, map2jdwpError(error));
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}
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return JNI_TRUE;
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}
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static jboolean
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variableTable(PacketInputStream *in, PacketOutputStream *out) {
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return doVariableTable(in, out, 0);
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}
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static jboolean
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variableTableWithGenerics(PacketInputStream *in, PacketOutputStream *out) {
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return doVariableTable(in, out, 1);
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}
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static jboolean
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bytecodes(PacketInputStream *in, PacketOutputStream *out)
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{
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jvmtiError error;
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unsigned char * bcp;
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jint bytecodeCount;
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jmethodID method;
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/* JVMDI needed the class, but JVMTI does not so we ignore it */
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(void)inStream_readClassRef(getEnv(), in);
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if (inStream_error(in)) {
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return JNI_TRUE;
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}
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method = inStream_readMethodID(in);
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if (inStream_error(in)) {
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return JNI_TRUE;
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}
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/* Initialize assuming no bytecodes and no error */
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error = JVMTI_ERROR_NONE;
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bytecodeCount = 0;
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bcp = NULL;
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/* Only non-native methods have bytecodes, don't even ask if native. */
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if ( !isMethodNative(method) ) {
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error = JVMTI_FUNC_PTR(gdata->jvmti,GetBytecodes)
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(gdata->jvmti, method, &bytecodeCount, &bcp);
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}
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if (error != JVMTI_ERROR_NONE) {
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outStream_setError(out, map2jdwpError(error));
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} else {
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(void)outStream_writeByteArray(out, bytecodeCount, (jbyte *)bcp);
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jvmtiDeallocate(bcp);
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}
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return JNI_TRUE;
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}
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static jboolean
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isObsolete(PacketInputStream *in, PacketOutputStream *out)
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{
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jboolean isObsolete;
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jmethodID method;
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/* JVMDI needed the class, but JVMTI does not so we ignore it */
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(void)inStream_readClassRef(getEnv(), in);
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if (inStream_error(in)) {
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return JNI_TRUE;
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}
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method = inStream_readMethodID(in);
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if (inStream_error(in)) {
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return JNI_TRUE;
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}
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isObsolete = isMethodObsolete(method);
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(void)outStream_writeBoolean(out, isObsolete);
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return JNI_TRUE;
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}
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void *Method_Cmds[] = { (void *)0x5
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,(void *)lineTable
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,(void *)variableTable
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,(void *)bytecodes
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,(void *)isObsolete
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,(void *)variableTableWithGenerics
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};
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