| /* | |
| * Copyright (c) 1998, 2005, 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. Oracle designates this | |
| * particular file as subject to the "Classpath" exception as provided | |
| * by Oracle in the LICENSE file that accompanied this code. | |
| * | |
| * 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 "util.h" | |
| #include "StackFrameImpl.h" | |
| #include "inStream.h" | |
| #include "outStream.h" | |
| #include "threadControl.h" | |
| #include "FrameID.h" | |
| static jdwpError | |
| validateThreadFrame(jthread thread, FrameID frame) | |
| { | |
| jvmtiError error; | |
| jdwpError serror; | |
| jint count; | |
| error = threadControl_suspendCount(thread, &count); | |
| if ( error == JVMTI_ERROR_NONE ) { | |
| if ( count > 0 ) { | |
| serror = validateFrameID(thread, frame); | |
| } else { | |
| serror = JDWP_ERROR(THREAD_NOT_SUSPENDED); | |
| } | |
| } else { | |
| serror = map2jdwpError(error); | |
| } | |
| return serror; | |
| } | |
| static jdwpError | |
| writeVariableValue(JNIEnv *env, PacketOutputStream *out, jthread thread, | |
| FrameNumber fnum, jint slot, jbyte typeKey) | |
| { | |
| jvmtiError error; | |
| jvalue value; | |
| if (isObjectTag(typeKey)) { | |
| WITH_LOCAL_REFS(env, 1) { | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,GetLocalObject) | |
| (gdata->jvmti, thread, fnum, slot, &value.l); | |
| if (error != JVMTI_ERROR_NONE) { | |
| outStream_setError(out, map2jdwpError(error)); | |
| } else { | |
| (void)outStream_writeByte(out, specificTypeKey(env, value.l)); | |
| (void)outStream_writeObjectRef(env, out, value.l); | |
| } | |
| } END_WITH_LOCAL_REFS(env); | |
| } else { | |
| /* | |
| * For primitive types, the type key is bounced back as is. | |
| */ | |
| (void)outStream_writeByte(out, typeKey); | |
| switch (typeKey) { | |
| case JDWP_TAG(BYTE): { | |
| jint intValue; | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,GetLocalInt) | |
| (gdata->jvmti, thread, fnum, slot, &intValue); | |
| (void)outStream_writeByte(out, (jbyte)intValue); | |
| break; | |
| } | |
| case JDWP_TAG(CHAR): { | |
| jint intValue; | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,GetLocalInt) | |
| (gdata->jvmti, thread, fnum, slot, &intValue); | |
| (void)outStream_writeChar(out, (jchar)intValue); | |
| break; | |
| } | |
| case JDWP_TAG(FLOAT): | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,GetLocalFloat) | |
| (gdata->jvmti, thread, fnum, slot, &value.f); | |
| (void)outStream_writeFloat(out, value.f); | |
| break; | |
| case JDWP_TAG(DOUBLE): | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,GetLocalDouble) | |
| (gdata->jvmti, thread, fnum, slot, &value.d); | |
| (void)outStream_writeDouble(out, value.d); | |
| break; | |
| case JDWP_TAG(INT): | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,GetLocalInt) | |
| (gdata->jvmti, thread, fnum, slot, &value.i); | |
| (void)outStream_writeInt(out, value.i); | |
| break; | |
| case JDWP_TAG(LONG): | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,GetLocalLong) | |
| (gdata->jvmti, thread, fnum, slot, &value.j); | |
| (void)outStream_writeLong(out, value.j); | |
| break; | |
| case JDWP_TAG(SHORT): { | |
| jint intValue; | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,GetLocalInt) | |
| (gdata->jvmti, thread, fnum, slot, &intValue); | |
| (void)outStream_writeShort(out, (jshort)intValue); | |
| break; | |
| } | |
| case JDWP_TAG(BOOLEAN):{ | |
| jint intValue; | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,GetLocalInt) | |
| (gdata->jvmti, thread, fnum, slot, &intValue); | |
| (void)outStream_writeBoolean(out, (jboolean)intValue); | |
| break; | |
| } | |
| default: | |
| return JDWP_ERROR(INVALID_TAG); | |
| } | |
| } | |
| return map2jdwpError(error); | |
| } | |
| static jdwpError | |
| readVariableValue(JNIEnv *env, PacketInputStream *in, jthread thread, | |
| FrameNumber fnum, jint slot, jbyte typeKey) | |
| { | |
| jvmtiError error; | |
| jvalue value; | |
| if (isObjectTag(typeKey)) { | |
| value.l = inStream_readObjectRef(env, in); | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,SetLocalObject) | |
| (gdata->jvmti, thread, fnum, slot, value.l); | |
| } else { | |
| switch (typeKey) { | |
| case JDWP_TAG(BYTE): | |
| value.b = inStream_readByte(in); | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,SetLocalInt) | |
| (gdata->jvmti, thread, fnum, slot, value.b); | |
| break; | |
| case JDWP_TAG(CHAR): | |
| value.c = inStream_readChar(in); | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,SetLocalInt) | |
| (gdata->jvmti, thread, fnum, slot, value.c); | |
| break; | |
| case JDWP_TAG(FLOAT): | |
| value.f = inStream_readFloat(in); | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,SetLocalFloat) | |
| (gdata->jvmti, thread, fnum, slot, value.f); | |
| break; | |
| case JDWP_TAG(DOUBLE): | |
| value.d = inStream_readDouble(in); | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,SetLocalDouble) | |
| (gdata->jvmti, thread, fnum, slot, value.d); | |
| break; | |
| case JDWP_TAG(INT): | |
| value.i = inStream_readInt(in); | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,SetLocalInt) | |
| (gdata->jvmti, thread, fnum, slot, value.i); | |
| break; | |
| case JDWP_TAG(LONG): | |
| value.j = inStream_readLong(in); | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,SetLocalLong) | |
| (gdata->jvmti, thread, fnum, slot, value.j); | |
| break; | |
| case JDWP_TAG(SHORT): | |
| value.s = inStream_readShort(in); | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,SetLocalInt) | |
| (gdata->jvmti, thread, fnum, slot, value.s); | |
| break; | |
| case JDWP_TAG(BOOLEAN): | |
| value.z = inStream_readBoolean(in); | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,SetLocalInt) | |
| (gdata->jvmti, thread, fnum, slot, value.z); | |
| break; | |
| default: | |
| return JDWP_ERROR(INVALID_TAG); | |
| } | |
| } | |
| return map2jdwpError(error); | |
| } | |
| static jboolean | |
| getValues(PacketInputStream *in, PacketOutputStream *out) | |
| { | |
| JNIEnv *env; | |
| int i; | |
| jdwpError serror; | |
| jthread thread; | |
| FrameID frame; | |
| jint variableCount; | |
| env = getEnv(); | |
| thread = inStream_readThreadRef(env, in); | |
| if (inStream_error(in)) { | |
| return JNI_TRUE; | |
| } | |
| frame = inStream_readFrameID(in); | |
| if (inStream_error(in)) { | |
| return JNI_TRUE; | |
| } | |
| variableCount = inStream_readInt(in); | |
| if (inStream_error(in)) { | |
| return JNI_TRUE; | |
| } | |
| /* | |
| * Validate the frame id | |
| */ | |
| serror = validateThreadFrame(thread, frame); | |
| if (serror != JDWP_ERROR(NONE)) { | |
| outStream_setError(out, serror); | |
| return JNI_TRUE; | |
| } | |
| (void)outStream_writeInt(out, variableCount); | |
| for (i = 0; (i < variableCount) && !outStream_error(out); i++) { | |
| jint slot; | |
| jbyte typeKey; | |
| FrameNumber fnum; | |
| slot = inStream_readInt(in); | |
| if (inStream_error(in)) | |
| break; | |
| typeKey = inStream_readByte(in); | |
| if (inStream_error(in)) | |
| break; | |
| fnum = getFrameNumber(frame); | |
| serror = writeVariableValue(env, out, thread, fnum, slot, typeKey); | |
| if (serror != JDWP_ERROR(NONE)) { | |
| outStream_setError(out, serror); | |
| break; | |
| } | |
| } | |
| return JNI_TRUE; | |
| } | |
| static jboolean | |
| setValues(PacketInputStream *in, PacketOutputStream *out) | |
| { | |
| JNIEnv *env; | |
| jint i; | |
| jdwpError serror; | |
| jthread thread; | |
| FrameID frame; | |
| jint variableCount; | |
| env = getEnv(); | |
| thread = inStream_readThreadRef(env, in); | |
| if (inStream_error(in)) { | |
| return JNI_TRUE; | |
| } | |
| frame = inStream_readFrameID(in); | |
| if (inStream_error(in)) { | |
| return JNI_TRUE; | |
| } | |
| variableCount = inStream_readInt(in); | |
| if (inStream_error(in)) { | |
| return JNI_TRUE; | |
| } | |
| /* | |
| * Validate the frame id | |
| */ | |
| serror = validateThreadFrame(thread, frame); | |
| if (serror != JDWP_ERROR(NONE)) { | |
| outStream_setError(out, serror); | |
| return JNI_TRUE; | |
| } | |
| for (i = 0; (i < variableCount) && !inStream_error(in); i++) { | |
| jint slot; | |
| jbyte typeKey; | |
| FrameNumber fnum; | |
| slot = inStream_readInt(in); | |
| if (inStream_error(in)) { | |
| return JNI_TRUE; | |
| } | |
| typeKey = inStream_readByte(in); | |
| if (inStream_error(in)) { | |
| return JNI_TRUE; | |
| } | |
| fnum = getFrameNumber(frame); | |
| serror = readVariableValue(env, in, thread, fnum, slot, typeKey); | |
| if (serror != JDWP_ERROR(NONE)) | |
| break; | |
| } | |
| if (serror != JDWP_ERROR(NONE)) { | |
| outStream_setError(out, serror); | |
| } | |
| return JNI_TRUE; | |
| } | |
| static jboolean | |
| thisObject(PacketInputStream *in, PacketOutputStream *out) | |
| { | |
| JNIEnv *env; | |
| jdwpError serror; | |
| jthread thread; | |
| FrameID frame; | |
| env = getEnv(); | |
| thread = inStream_readThreadRef(env, in); | |
| if (inStream_error(in)) { | |
| return JNI_TRUE; | |
| } | |
| frame = inStream_readFrameID(in); | |
| if (inStream_error(in)) { | |
| return JNI_TRUE; | |
| } | |
| /* | |
| * Validate the frame id | |
| */ | |
| serror = validateThreadFrame(thread, frame); | |
| if (serror != JDWP_ERROR(NONE)) { | |
| outStream_setError(out, serror); | |
| return JNI_TRUE; | |
| } | |
| WITH_LOCAL_REFS(env, 2) { | |
| jvmtiError error; | |
| jmethodID method; | |
| jlocation location; | |
| FrameNumber fnum; | |
| /* | |
| * Find out if the given frame is for a static or native method. | |
| */ | |
| fnum = getFrameNumber(frame); | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,GetFrameLocation) | |
| (gdata->jvmti, thread, fnum, &method, &location); | |
| if (error == JVMTI_ERROR_NONE) { | |
| jint modifiers; | |
| error = methodModifiers(method, &modifiers); | |
| if (error == JVMTI_ERROR_NONE) { | |
| jobject this_object; | |
| /* | |
| * Return null for static or native methods; otherwise, the JVM | |
| * spec guarantees that "this" is in slot 0 | |
| */ | |
| if (modifiers & (MOD_STATIC | MOD_NATIVE)) { | |
| this_object = NULL; | |
| (void)outStream_writeByte(out, specificTypeKey(env, this_object)); | |
| (void)outStream_writeObjectRef(env, out, this_object); | |
| } else { | |
| error = JVMTI_FUNC_PTR(gdata->jvmti,GetLocalObject) | |
| (gdata->jvmti, thread, fnum, 0, &this_object); | |
| if (error == JVMTI_ERROR_NONE) { | |
| (void)outStream_writeByte(out, specificTypeKey(env, this_object)); | |
| (void)outStream_writeObjectRef(env, out, this_object); | |
| } | |
| } | |
| } | |
| } | |
| serror = map2jdwpError(error); | |
| } END_WITH_LOCAL_REFS(env); | |
| if (serror != JDWP_ERROR(NONE)) | |
| outStream_setError(out, serror); | |
| return JNI_TRUE; | |
| } | |
| static jboolean | |
| popFrames(PacketInputStream *in, PacketOutputStream *out) | |
| { | |
| jvmtiError error; | |
| jdwpError serror; | |
| jthread thread; | |
| FrameID frame; | |
| FrameNumber fnum; | |
| thread = inStream_readThreadRef(getEnv(), in); | |
| if (inStream_error(in)) { | |
| return JNI_TRUE; | |
| } | |
| frame = inStream_readFrameID(in); | |
| if (inStream_error(in)) { | |
| return JNI_TRUE; | |
| } | |
| /* | |
| * Validate the frame id | |
| */ | |
| serror = validateThreadFrame(thread, frame); | |
| if (serror != JDWP_ERROR(NONE)) { | |
| outStream_setError(out, serror); | |
| return JNI_TRUE; | |
| } | |
| if (threadControl_isDebugThread(thread)) { | |
| outStream_setError(out, JDWP_ERROR(INVALID_THREAD)); | |
| return JNI_TRUE; | |
| } | |
| fnum = getFrameNumber(frame); | |
| error = threadControl_popFrames(thread, fnum); | |
| if (error != JVMTI_ERROR_NONE) { | |
| serror = map2jdwpError(error); | |
| outStream_setError(out, serror); | |
| } | |
| return JNI_TRUE; | |
| } | |
| void *StackFrame_Cmds[] = { (void *)0x4 | |
| ,(void *)getValues | |
| ,(void *)setValues | |
| ,(void *)thisObject | |
| ,(void *)popFrames | |
| }; |