1 /* src/native/vm/VMVirtualMachine.c - jdwp->jvmti interface
3 Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
4 C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
5 E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
6 J. Wenninger, Institut f. Computersprachen - TU Wien
8 This file is part of CACAO.
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License as
12 published by the Free Software Foundation; either version 2, or (at
13 your option) any later version.
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
25 Contact: cacao@cacaojvm.org
27 Authors: Martin Platter
29 Changes: Samuel Vinson
32 $Id: VMVirtualMachine.c 4969 2006-05-29 09:41:02Z motse $
36 #include "toolbox/logging.h"
37 #include "native/jni.h"
38 #include "native/include/java_lang_Thread.h"
39 #include "native/include/java_nio_ByteBuffer.h"
40 #include "native/include/java_lang_Class.h"
41 #include "native/include/java_lang_ClassLoader.h"
42 #include "native/include/java_lang_reflect_Method.h"
43 #include "native/include/gnu_classpath_jdwp_event_EventRequest.h"
44 #include "native/include/gnu_classpath_jdwp_VMVirtualMachine.h"
45 #include "native/jvmti/jvmti.h"
46 #include "native/jvmti/VMjdwp.h"
51 * Class: gnu_classpath_jdwp_VMVirtualMachine
52 * Method: suspendThread
53 * Signature: (Ljava/lang/Thread;)V
55 JNIEXPORT void JNICALL Java_gnu_classpath_jdwp_VMVirtualMachine_suspendThread(JNIEnv *env, jclass clazz, struct java_lang_Thread* par1)
57 (*jvmtienv)->SuspendThread(jvmtienv, (jthread) par1);
61 * Class: gnu_classpath_jdwp_VMVirtualMachine
62 * Method: resumeThread
63 * Signature: (Ljava/lang/Thread;)V
65 JNIEXPORT void JNICALL Java_gnu_classpath_jdwp_VMVirtualMachine_resumeThread(JNIEnv *env, jclass clazz, struct java_lang_Thread* par1)
67 (*jvmtienv)->ResumeThread(jvmtienv, (jthread) par1);
72 * Class: gnu_classpath_jdwp_VMVirtualMachine
73 * Method: getSuspendCount
74 * Signature: (Ljava/lang/Thread;)I
76 JNIEXPORT s4 JNICALL Java_gnu_classpath_jdwp_VMVirtualMachine_getSuspendCount(JNIEnv *env, jclass clazz, struct java_lang_Thread* par1) {
77 log_text ("VMVirtualMachine_getSuspendCount: not supported");
82 * Class: gnu_classpath_jdwp_VMVirtualMachine
83 * Method: getAllLoadedClassesCount
86 JNIEXPORT s4 JNICALL Java_gnu_classpath_jdwp_VMVirtualMachine_getAllLoadedClassesCount(JNIEnv *env, jclass clazz) {
92 if (JVMTI_ERROR_NONE != (err= (*jvmtienv)->
93 GetLoadedClasses(jvmtienv, &count, &classes))) {
94 (*jvmtienv)->GetErrorName(jvmtienv,err, &errdesc);
95 fprintf(stderr,"jvmti error: %s\n",errdesc);
96 (*jvmtienv)->Deallocate(jvmtienv,(unsigned char*)errdesc);
100 (*jvmtienv)->Deallocate(jvmtienv,(unsigned char*)classes);
105 * Class: gnu_classpath_jdwp_VMVirtualMachine
106 * Method: getAllLoadedClasses
107 * Signature: ()Ljava/util/Iterator
109 JNIEXPORT struct java_util_Iterator* JNICALL Java_gnu_classpath_jdwp_VMVirtualMachine_getAllLoadedClasses(JNIEnv *env, jclass clazz) {
110 jclass *classes, *cl;
120 if (JVMTI_ERROR_NONE != (err= (*jvmtienv)->
121 GetLoadedClasses(jvmtienv, &classcount, &classes))) {
122 (*jvmtienv)->GetErrorName(jvmtienv,err, &errdesc);
123 fprintf(stderr,"jvmti error: %s\n",errdesc);
126 /* we should throw JDWP Exception INTERNAL = 113;*/
127 /* env->ThrowNew(env,ec,"jvmti error occoured"); */
131 cl = (*env)->FindClass(env,"java.lang.Class");
132 if (!cl) return NULL;
134 /* Arrays.asList(Object[] classes)->List.Iterator()->Iterator */
135 joa = (*env)->NewObjectArray(env, (jsize)classcount, cl , NULL);
136 if (!joa) return NULL;
138 for (i = 0; i < classcount; i++)
139 (*env)->SetObjectArrayElement(env,joa,(jsize)i, (jobject)classes[i]);
140 (*jvmtienv)->Deallocate(jvmtienv, (unsigned char*)classes);
142 cl = (*env)->FindClass(env,"java.util.Arrays");
143 if (!cl) return NULL;
145 m = (*env)->GetStaticMethodID(env, cl, "asList", "([Ljava/lang/Object;)Ljava/util/List;");
148 ol = (*env)->CallStaticObjectMethod(env,(jclass)cl,m,joa);
149 if (!ol) return NULL;
151 cl = (*env)->FindClass(env,"java.util.List");
152 if (!cl) return NULL;
153 m = (*env)->GetMethodID(env,cl,"iterator","()Ljava/util/Iterator;");
155 oi = (*env)->CallObjectMethod(env,ol,m);
157 return (struct java_util_Iterator*)oi;
160 /* Class: gnu/classpath/jdwp/VMVirtualMachine
161 * Method: getClassStatus
162 * Signature: (Ljava/lang/Class;)I
164 JNIEXPORT s4 JNICALL Java_gnu_classpath_jdwp_VMVirtualMachine_getClassStatus(JNIEnv *env, jclass clazz, struct java_lang_Class* par1) {
166 (*jvmtienv)->GetClassStatus(jvmtienv, (jclass) par1, &status);
171 * Class: gnu/classpath/jdwp/VMVirtualMachine
172 * Method: getAllClassMethods
173 * Signature: (Ljava/lang/Class;)[Lgnu/classpath/jdwp/VMMethod;
175 JNIEXPORT java_objectarray* JNICALL Java_gnu_classpath_jdwp_VMVirtualMachine_getAllClassMethods(JNIEnv *env, jclass clazz, struct java_lang_Class* par1) {
177 jmethodID* methodID, m;
186 if (JVMTI_ERROR_NONE != (err= (*jvmtienv)->
187 GetClassMethods(jvmtienv, (jclass) par1,
188 &count, &methodID))) {
189 (*jvmtienv)->GetErrorName(jvmtienv,err, &errdesc);
190 fprintf(stderr,"jvmti error: %s\n",errdesc);
191 (*jvmtienv)->Deallocate(jvmtienv, (unsigned char *)errdesc);
197 GetStaticMethodID(env, clazz, "getClassMethod",
198 "(Ljava/lang/Class;J)Lgnu/classpath/jdwp/VMMethod;");
201 cl = (*env)->FindClass(env,"gnu.classpath.jdwp.VMMethod");
202 if (!cl) return NULL;
204 joa = (*env)->NewObjectArray(env, (jsize)count, cl , NULL);
205 if (!joa) return NULL;
206 fprintf(stderr, "VMVirtualMachine_getAllClassMethods 3\n");
207 for (i = 0; i < count; i++) {
209 CallStaticObjectMethod(env,clazz,m,(jobject)par1, methodID[i]);
210 if (!ol) return NULL;
211 (*env)->SetObjectArrayElement(env,joa,(jsize)i, ol);
218 * Class: gnu/classpath/jdwp/VMVirtualMachine
219 * Method: getClassMethod
220 * Signature: (Ljava/lang/Class;J)Lgnu/classpath/jdwp/VMMethod;
222 JNIEXPORT struct gnu_classpath_jdwp_VMMethod* JNICALL Java_gnu_classpath_jdwp_VMVirtualMachine_getClassMethod(JNIEnv *env, jclass clazz, struct java_lang_Class* par1, s8 par2) {
227 cl = (*env)->FindClass(env,"gnu.classpath.jdwp.VMMethod");
228 if (!cl) return NULL;
230 m = (*env)->GetMethodID(env, cl, "<init>", "(Ljava/lang/Class;J)V");
233 ol = (*env)->NewObject(env, cl, m, par1, par2);
235 return (struct gnu_classpath_jdwp_VMMethod*)ol;
240 * Class: gnu/classpath/jdwp/VMVirtualMachine
242 * Signature: (Ljava/lang/Thread;II)Ljava/util/ArrayList;
244 JNIEXPORT struct java_util_ArrayList* JNICALL Java_gnu_classpath_jdwp_VMVirtualMachine_getFrames(JNIEnv *env, jclass clazz, struct java_lang_Thread* par1, s4 par2, s4 par3) {
245 log_text ("VMVirtualMachine_getFrames - IMPLEMENT ME!!!");
246 /* jclass ec = (*env)->FindClass(env,"gnu/classpath/jdwp/JdwpInternalErrorException");
247 if (JVMTI_ERROR_NONE != (*jvmtienv)->GetClassStatus(jvmtienv, par1, &status))
248 env->ThrowNew(env,ec,"jvmti error occoured");*/
254 * Class: gnu/classpath/jdwp/VMVirtualMachine
256 * Signature: (Ljava/lang/Thread;Ljava/nio/ByteBuffer;)Lgnu/classpath/jdwp/VMFrame;
258 JNIEXPORT struct gnu_classpath_jdwp_VMFrame* JNICALL Java_gnu_classpath_jdwp_VMVirtualMachine_getFrame(JNIEnv *env, jclass clazz, struct java_lang_Thread* par1, struct java_nio_ByteBuffer* par2) {
259 log_text ("VMVirtualMachine_getFrame - IMPLEMENT ME!!!");
265 * Class: gnu/classpath/jdwp/VMVirtualMachine
266 * Method: getFrameCount
267 * Signature: (Ljava/lang/Thread;)I
269 JNIEXPORT s4 JNICALL Java_gnu_classpath_jdwp_VMVirtualMachine_getFrameCount(JNIEnv *env, jclass clazz, struct java_lang_Thread* par1) {
271 (*jvmtienv)->GetFrameCount(jvmtienv, (jthread)par1, &count);
277 * Class: gnu/classpath/jdwp/VMVirtualMachine
278 * Method: getThreadStatus
279 * Signature: (Ljava/lang/Thread;)I
281 JNIEXPORT s4 JNICALL Java_gnu_classpath_jdwp_VMVirtualMachine_getThreadStatus(JNIEnv *env, jclass clazz, struct java_lang_Thread* par1) {
283 if (JVMTI_ERROR_NONE != (*jvmtienv)->GetThreadState(jvmtienv, (jthread)par1, &status))
285 if (status && JVMTI_THREAD_STATE_ALIVE) {
286 if (status && JVMTI_THREAD_STATE_WAITING) {
287 return 4; /* WAIT - see JdwpConstants */
289 if (status && JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER) {
290 return 3; /* MONITOR - see JdwpConstants */
292 if (status && JVMTI_THREAD_STATE_SLEEPING) {
293 return 2; /* SLEEPING - see JdwpConstants */
295 return 1; /* RUNNING - see JdwpConstants */
297 return 0; /* ZOMBIE - see JdwpConstants */
298 return -1; /* some error */
303 * Class: gnu/classpath/jdwp/VMVirtualMachine
304 * Method: getLoadRequests
305 * Signature: (Ljava/lang/ClassLoader;)Ljava/util/ArrayList;
307 JNIEXPORT struct java_util_ArrayList* JNICALL Java_gnu_classpath_jdwp_VMVirtualMachine_getLoadRequests(JNIEnv *env, jclass clazz, struct java_lang_ClassLoader* par1) {
308 log_text ("VMVirtualMachine_getLoadRequests(");
314 * Class: gnu/classpath/jdwp/VMVirtualMachine
315 * Method: executeMethod
316 * Signature: (Ljava/lang/Object;Ljava/lang/Thread;Ljava/lang/Class;Ljava/lang/reflect/Method;[Ljava/lang/Object;Z)Lgnu/classpath/jdwp/util/MethodResult;
318 JNIEXPORT struct gnu_classpath_jdwp_util_MethodResult* JNICALL Java_gnu_classpath_jdwp_VMVirtualMachine_executeMethod(JNIEnv *env, jclass clazz, struct java_lang_Object* par1, struct java_lang_Thread* par2, struct java_lang_Class* par3, struct java_lang_reflect_Method* par4, java_objectarray* par5, s4 par6) {
319 log_text ("VMVirtualMachine_executeMethod");
325 * Class: gnu/classpath/jdwp/VMVirtualMachine
326 * Method: getSourceFile
327 * Signature: (Ljava/lang/Class;)Ljava/lang/String;
329 JNIEXPORT struct java_lang_String* JNICALL Java_gnu_classpath_jdwp_VMVirtualMachine_getSourceFile(JNIEnv *env, jclass clazz, struct java_lang_Class* par1) {
334 GetSourceFileName(jvmtienv, (jclass)par1, &srcname);
335 str = (*env)->NewString(env,(jchar*)srcname,(jsize)strlen(srcname));
337 return (struct java_lang_String*)str;
340 /* match JdwpConstants.EventKind to jvmtiEvent constants */
341 static jvmtiEvent EventKind2jvmtiEvent(jbyte kind){
343 case /* SINGLE_STEP */ 1: return JVMTI_EVENT_SINGLE_STEP;
344 case /* BREAKPOINT */ 2: return JVMTI_EVENT_BREAKPOINT;
345 case /* FRAME_POP */ 3: return JVMTI_EVENT_FRAME_POP;
346 case /* EXCEPTION */ 4: return JVMTI_EVENT_EXCEPTION;
347 case /* USER_DEFINED */ 5: return -1; /* can this be matched ? */
348 case /* THREAD_START */ 6: return JVMTI_EVENT_THREAD_START;
349 case /* THREAD_END */ 7: return JVMTI_EVENT_THREAD_END;
350 case /* CLASS_PREPARE */ 8: return JVMTI_EVENT_CLASS_PREPARE;
351 case /* CLASS_UNLOAD */ 9: return -1; /* can this be matched ? */
352 case /* CLASS_LOAD */ 10: return JVMTI_EVENT_CLASS_LOAD;
353 case /* FIELD_ACCESS */ 20: return JVMTI_EVENT_FIELD_ACCESS;
354 case /* FIELD_MODIFICATION */ 21: return JVMTI_EVENT_FIELD_MODIFICATION;
355 case /* EXCEPTION_CATCH */ 30: return JVMTI_EVENT_EXCEPTION_CATCH;
356 case /* METHOD_ENTRY */ 40: return JVMTI_EVENT_METHOD_ENTRY;
357 case /* METHOD_EXIT */ 41: return JVMTI_EVENT_METHOD_EXIT;
358 case /* VM_INIT */ 90: return JVMTI_EVENT_VM_INIT;
359 case /* VM_DEATH */ 99: return JVMTI_EVENT_VM_DEATH;
360 case /* VM_DISCONNECTED */ 100: return -1; /* can this be matched ? */
366 * Class: gnu/classpath/jdwp/VMVirtualMachine
367 * Method: registerEvent
368 * Signature: (Lgnu/classpath/jdwp/event/EventRequest;)V
370 JNIEXPORT void JNICALL Java_gnu_classpath_jdwp_VMVirtualMachine_registerEvent(JNIEnv *env, jclass clazz, struct gnu_classpath_jdwp_event_EventRequest* par1) {
375 erc = (*env)->FindClass(env,"gnu.classpath.jdwp.event.EventRequest");
377 kindid = (*env)->GetFieldID(env, erc, "_kind", "B");
378 kind = (*env)->GetByteField(env, (jobject)par1, kindid);
381 SetEventNotificationMode(jvmtienv, JVMTI_ENABLE,
382 EventKind2jvmtiEvent(kind), NULL);
384 /* todo: error handling, suspend policy */
389 * Class: gnu/classpath/jdwp/VMVirtualMachine
390 * Method: unregisterEvent
391 * Signature: (Lgnu/classpath/jdwp/event/EventRequest;)V
393 JNIEXPORT void JNICALL Java_gnu_classpath_jdwp_VMVirtualMachine_unregisterEvent(JNIEnv *env, jclass clazz, struct gnu_classpath_jdwp_event_EventRequest* par1) {
398 erc = (*env)->FindClass(env,"gnu.classpath.jdwp.event.EventRequest");
400 kindid = (*env)->GetFieldID(env, erc, "_kind", "B");
401 kind = (*env)->GetByteField(env, (jobject)par1, kindid);
404 SetEventNotificationMode(jvmtienv, JVMTI_DISABLE,
405 EventKind2jvmtiEvent(kind), NULL);
407 /* todo: error handling, suspend policy */
412 * Class: gnu/classpath/jdwp/VMVirtualMachine
413 * Method: clearEvents
416 JNIEXPORT void JNICALL Java_gnu_classpath_jdwp_VMVirtualMachine_clearEvents(JNIEnv *env, jclass clazz, s4 par1) {
417 /* jvmti events are not saved */
418 log_text ("VMVirtualMachine_clearEvents IMPLEMENT ME!!!");
423 * These are local overrides for various environment variables in Emacs.
424 * Please do not remove this and leave it at the end of the file, where
425 * Emacs will automagically detect them.
426 * ---------------------------------------------------------------------
429 * indent-tabs-mode: t