/*
* Send a polite "VM is dying" message to the debugger.
*
* Skips the usual "event token" stuff.
*/
bool dvmJdwpPostVMDeath(JdwpState* state)
{
ALOGV("EVENT: %s", dvmJdwpEventKindStr(EK_VM_DEATH));
ExpandBuf* pReq = eventPrep();
expandBufAdd1(pReq, SP_NONE);
expandBufAdd4BE(pReq, 1);
expandBufAdd1(pReq, EK_VM_DEATH);
expandBufAdd4BE(pReq, 0);
eventFinish(state, pReq);
return true;
}
/*
* Tell the debugger that we have finished initializing. This is always
* sent, even if the debugger hasn't requested it.
*
* This should be sent "before the main thread is started and before
* any application code has been executed". The thread ID in the message
* must be for the main thread.
*/
bool dvmJdwpPostVMStart(JdwpState* state, bool suspend)
{
JdwpSuspendPolicy suspendPolicy;
ObjectId threadId = dvmDbgGetThreadSelfId();
if (suspend)
suspendPolicy = SP_ALL;
else
suspendPolicy = SP_NONE;
/* probably don't need this here */
lockEventMutex(state);
ExpandBuf* pReq = NULL;
if (true) {
ALOGV("EVENT: %s", dvmJdwpEventKindStr(EK_VM_START));
ALOGV(" suspendPolicy=%s", dvmJdwpSuspendPolicyStr(suspendPolicy));
pReq = eventPrep();
expandBufAdd1(pReq, suspendPolicy);
expandBufAdd4BE(pReq, 1);
expandBufAdd1(pReq, EK_VM_START);
expandBufAdd4BE(pReq, 0); /* requestId */
expandBufAdd8BE(pReq, threadId);
}
unlockEventMutex(state);
/* send request and possibly suspend ourselves */
if (pReq != NULL) {
int oldStatus = dvmDbgThreadWaiting();
if (suspendPolicy != SP_NONE)
dvmJdwpSetWaitForEventThread(state, threadId);
eventFinish(state, pReq);
suspendByPolicy(state, suspendPolicy);
dvmDbgThreadContinuing(oldStatus);
}
return true;
}
/* check controller buttons */
inline int
padCheckState ( padBtnData *pdata )
{
switch ( padCheck ( pdata ) )
{
case 0:
// *pdata->exitapp = 1;
break ;
case PAD_TRIANGLE:
dbgprintf ( "PAD_TRIANGLE" ) ;
*pdata->exitapp = 1;
break;
case PAD_CIRCLE:
dbgprintf ( "PAD_CIRCLE" ) ;
*pdata->exitapp = 1;
break ;
case PAD_CROSS:
dbgprintf ( "PAD_CROSS" ) ;
*pdata->exitapp = 1;
break ;
case PAD_SQUARE:
dbgprintf ( "PAD_SQUARE" ) ;
*pdata->exitapp = 1;
break;
case PAD_SELECT:
dbgprintf ( "PAD_SELECT" ) ;
*pdata->exitapp = 1;
break;
case PAD_START:
dbgprintf ( "PAD_START" ) ;
eventFinish ( pdata->edata ) ;
*pdata->exitapp = 0;
break;
default:
dbgprintf ( "default" ) ;
// *pdata->exitapp = 1;
break ;
}
return 0 ;
}
/*
* A thread is starting or stopping.
*
* Valid mods:
* Count, ThreadOnly
*/
bool dvmJdwpPostThreadChange(JdwpState* state, ObjectId threadId, bool start)
{
JdwpSuspendPolicy suspendPolicy = SP_NONE;
assert(threadId == dvmDbgGetThreadSelfId());
/*
* I don't think this can happen.
*/
if (invokeInProgress(state)) {
ALOGW("Not posting thread change during invoke");
return false;
}
ModBasket basket;
memset(&basket, 0, sizeof(basket));
basket.threadId = threadId;
/* don't allow the list to be updated while we scan it */
lockEventMutex(state);
JdwpEvent** matchList = allocMatchList(state);
int matchCount = 0;
if (start)
findMatchingEvents(state, EK_THREAD_START, &basket, matchList,
&matchCount);
else
findMatchingEvents(state, EK_THREAD_DEATH, &basket, matchList,
&matchCount);
ExpandBuf* pReq = NULL;
if (matchCount != 0) {
ALOGV("EVENT: %s(%d total) thread=%llx)",
dvmJdwpEventKindStr(matchList[0]->eventKind), matchCount,
basket.threadId);
suspendPolicy = scanSuspendPolicy(matchList, matchCount);
ALOGV(" suspendPolicy=%s",
dvmJdwpSuspendPolicyStr(suspendPolicy));
pReq = eventPrep();
expandBufAdd1(pReq, suspendPolicy);
expandBufAdd4BE(pReq, matchCount);
for (int i = 0; i < matchCount; i++) {
expandBufAdd1(pReq, matchList[i]->eventKind);
expandBufAdd4BE(pReq, matchList[i]->requestId);
expandBufAdd8BE(pReq, basket.threadId);
}
}
cleanupMatchList(state, matchList, matchCount);
unlockEventMutex(state);
/* send request and possibly suspend ourselves */
if (pReq != NULL) {
int oldStatus = dvmDbgThreadWaiting();
if (suspendPolicy != SP_NONE)
dvmJdwpSetWaitForEventThread(state, basket.threadId);
eventFinish(state, pReq);
suspendByPolicy(state, suspendPolicy);
dvmDbgThreadContinuing(oldStatus);
}
return matchCount != 0;
}
/*
* A location of interest has been reached. This handles:
* Breakpoint
* SingleStep
* MethodEntry
* MethodExit
* These four types must be grouped together in a single response. The
* "eventFlags" indicates the type of event(s) that have happened.
*
* Valid mods:
* Count, ThreadOnly, ClassOnly, ClassMatch, ClassExclude, InstanceOnly
* LocationOnly (for breakpoint/step only)
* Step (for step only)
*
* Interesting test cases:
* - Put a breakpoint on a native method. Eclipse creates METHOD_ENTRY
* and METHOD_EXIT events with a ClassOnly mod on the method's class.
* - Use "run to line". Eclipse creates a BREAKPOINT with Count=1.
* - Single-step to a line with a breakpoint. Should get a single
* event message with both events in it.
*/
bool dvmJdwpPostLocationEvent(JdwpState* state, const JdwpLocation* pLoc,
ObjectId thisPtr, int eventFlags)
{
JdwpSuspendPolicy suspendPolicy = SP_NONE;
ModBasket basket;
char* nameAlloc = NULL;
memset(&basket, 0, sizeof(basket));
basket.pLoc = pLoc;
basket.classId = pLoc->classId;
basket.thisPtr = thisPtr;
basket.threadId = dvmDbgGetThreadSelfId();
basket.className = nameAlloc =
dvmDescriptorToName(dvmDbgGetClassDescriptor(pLoc->classId));
/*
* On rare occasions we may need to execute interpreted code in the VM
* while handling a request from the debugger. Don't fire breakpoints
* while doing so. (I don't think we currently do this at all, so
* this is mostly paranoia.)
*/
if (basket.threadId == state->debugThreadId) {
ALOGV("Ignoring location event in JDWP thread");
free(nameAlloc);
return false;
}
/*
* The debugger variable display tab may invoke the interpreter to format
* complex objects. We want to ignore breakpoints and method entry/exit
* traps while working on behalf of the debugger.
*
* If we don't ignore them, the VM will get hung up, because we'll
* suspend on a breakpoint while the debugger is still waiting for its
* method invocation to complete.
*/
if (invokeInProgress(state)) {
ALOGV("Not checking breakpoints during invoke (%s)", basket.className);
free(nameAlloc);
return false;
}
/* don't allow the list to be updated while we scan it */
lockEventMutex(state);
JdwpEvent** matchList = allocMatchList(state);
int matchCount = 0;
if ((eventFlags & DBG_BREAKPOINT) != 0)
findMatchingEvents(state, EK_BREAKPOINT, &basket, matchList,
&matchCount);
if ((eventFlags & DBG_SINGLE_STEP) != 0)
findMatchingEvents(state, EK_SINGLE_STEP, &basket, matchList,
&matchCount);
if ((eventFlags & DBG_METHOD_ENTRY) != 0)
findMatchingEvents(state, EK_METHOD_ENTRY, &basket, matchList,
&matchCount);
if ((eventFlags & DBG_METHOD_EXIT) != 0)
findMatchingEvents(state, EK_METHOD_EXIT, &basket, matchList,
&matchCount);
ExpandBuf* pReq = NULL;
if (matchCount != 0) {
ALOGV("EVENT: %s(%d total) %s.%s thread=%llx code=%llx)",
dvmJdwpEventKindStr(matchList[0]->eventKind), matchCount,
basket.className,
dvmDbgGetMethodName(pLoc->classId, pLoc->methodId),
basket.threadId, pLoc->idx);
suspendPolicy = scanSuspendPolicy(matchList, matchCount);
ALOGV(" suspendPolicy=%s",
dvmJdwpSuspendPolicyStr(suspendPolicy));
pReq = eventPrep();
expandBufAdd1(pReq, suspendPolicy);
expandBufAdd4BE(pReq, matchCount);
for (int i = 0; i < matchCount; i++) {
expandBufAdd1(pReq, matchList[i]->eventKind);
expandBufAdd4BE(pReq, matchList[i]->requestId);
expandBufAdd8BE(pReq, basket.threadId);
dvmJdwpAddLocation(pReq, pLoc);
}
}
cleanupMatchList(state, matchList, matchCount);
unlockEventMutex(state);
/* send request and possibly suspend ourselves */
if (pReq != NULL) {
int oldStatus = dvmDbgThreadWaiting();
if (suspendPolicy != SP_NONE)
dvmJdwpSetWaitForEventThread(state, basket.threadId);
eventFinish(state, pReq);
suspendByPolicy(state, suspendPolicy);
dvmDbgThreadContinuing(oldStatus);
}
free(nameAlloc);
return matchCount != 0;
}
/*
* Announce that a class has been loaded.
*
* Valid mods:
* Count, ThreadOnly, ClassOnly, ClassMatch, ClassExclude
*/
bool dvmJdwpPostClassPrepare(JdwpState* state, int tag, RefTypeId refTypeId,
const char* signature, int status)
{
JdwpSuspendPolicy suspendPolicy = SP_NONE;
ModBasket basket;
char* nameAlloc = NULL;
memset(&basket, 0, sizeof(basket));
basket.classId = refTypeId;
basket.threadId = dvmDbgGetThreadSelfId();
basket.className = nameAlloc =
dvmDescriptorToName(dvmDbgGetClassDescriptor(basket.classId));
/* suppress class prep caused by debugger */
if (invokeInProgress(state)) {
ALOGV("Not posting class prep caused by invoke (%s)",basket.className);
free(nameAlloc);
return false;
}
/* don't allow the list to be updated while we scan it */
lockEventMutex(state);
JdwpEvent** matchList = allocMatchList(state);
int matchCount = 0;
findMatchingEvents(state, EK_CLASS_PREPARE, &basket, matchList,
&matchCount);
ExpandBuf* pReq = NULL;
if (matchCount != 0) {
ALOGV("EVENT: %s(%d total) thread=%llx)",
dvmJdwpEventKindStr(matchList[0]->eventKind), matchCount,
basket.threadId);
suspendPolicy = scanSuspendPolicy(matchList, matchCount);
ALOGV(" suspendPolicy=%s",
dvmJdwpSuspendPolicyStr(suspendPolicy));
if (basket.threadId == state->debugThreadId) {
/*
* JDWP says that, for a class prep in the debugger thread, we
* should set threadId to null and if any threads were supposed
* to be suspended then we suspend all other threads.
*/
ALOGV(" NOTE: class prepare in debugger thread!");
basket.threadId = 0;
if (suspendPolicy == SP_EVENT_THREAD)
suspendPolicy = SP_ALL;
}
pReq = eventPrep();
expandBufAdd1(pReq, suspendPolicy);
expandBufAdd4BE(pReq, matchCount);
for (int i = 0; i < matchCount; i++) {
expandBufAdd1(pReq, matchList[i]->eventKind);
expandBufAdd4BE(pReq, matchList[i]->requestId);
expandBufAdd8BE(pReq, basket.threadId);
expandBufAdd1(pReq, tag);
expandBufAdd8BE(pReq, refTypeId);
expandBufAddUtf8String(pReq, (const u1*) signature);
expandBufAdd4BE(pReq, status);
}
}
cleanupMatchList(state, matchList, matchCount);
unlockEventMutex(state);
/* send request and possibly suspend ourselves */
if (pReq != NULL) {
int oldStatus = dvmDbgThreadWaiting();
if (suspendPolicy != SP_NONE)
dvmJdwpSetWaitForEventThread(state, basket.threadId);
eventFinish(state, pReq);
suspendByPolicy(state, suspendPolicy);
dvmDbgThreadContinuing(oldStatus);
}
free(nameAlloc);
return matchCount != 0;
}
/*
* An exception has been thrown. It may or may not have been caught.
*
* Valid mods:
* Count, ThreadOnly, ClassOnly, ClassMatch, ClassExclude, LocationOnly,
* ExceptionOnly, InstanceOnly
*
* The "exceptionId" has not been added to the GC-visible object registry,
* because there's a pretty good chance that we're not going to send it
* up the debugger.
*/
bool dvmJdwpPostException(JdwpState* state, const JdwpLocation* pThrowLoc,
ObjectId exceptionId, RefTypeId exceptionClassId,
const JdwpLocation* pCatchLoc, ObjectId thisPtr)
{
JdwpSuspendPolicy suspendPolicy = SP_NONE;
ModBasket basket;
char* nameAlloc = NULL;
memset(&basket, 0, sizeof(basket));
basket.pLoc = pThrowLoc;
basket.classId = pThrowLoc->classId;
basket.threadId = dvmDbgGetThreadSelfId();
basket.className = nameAlloc =
dvmDescriptorToName(dvmDbgGetClassDescriptor(basket.classId));
basket.excepClassId = exceptionClassId;
basket.caught = (pCatchLoc->classId != 0);
basket.thisPtr = thisPtr;
/* don't try to post an exception caused by the debugger */
if (invokeInProgress(state)) {
ALOGV("Not posting exception hit during invoke (%s)",basket.className);
free(nameAlloc);
return false;
}
/* don't allow the list to be updated while we scan it */
lockEventMutex(state);
JdwpEvent** matchList = allocMatchList(state);
int matchCount = 0;
findMatchingEvents(state, EK_EXCEPTION, &basket, matchList, &matchCount);
ExpandBuf* pReq = NULL;
if (matchCount != 0) {
ALOGV("EVENT: %s(%d total) thread=%llx exceptId=%llx caught=%d)",
dvmJdwpEventKindStr(matchList[0]->eventKind), matchCount,
basket.threadId, exceptionId, basket.caught);
ALOGV(" throw: %d %llx %x %lld (%s.%s)", pThrowLoc->typeTag,
pThrowLoc->classId, pThrowLoc->methodId, pThrowLoc->idx,
dvmDbgGetClassDescriptor(pThrowLoc->classId),
dvmDbgGetMethodName(pThrowLoc->classId, pThrowLoc->methodId));
if (pCatchLoc->classId == 0) {
ALOGV(" catch: (not caught)");
} else {
ALOGV(" catch: %d %llx %x %lld (%s.%s)", pCatchLoc->typeTag,
pCatchLoc->classId, pCatchLoc->methodId, pCatchLoc->idx,
dvmDbgGetClassDescriptor(pCatchLoc->classId),
dvmDbgGetMethodName(pCatchLoc->classId, pCatchLoc->methodId));
}
suspendPolicy = scanSuspendPolicy(matchList, matchCount);
ALOGV(" suspendPolicy=%s",
dvmJdwpSuspendPolicyStr(suspendPolicy));
pReq = eventPrep();
expandBufAdd1(pReq, suspendPolicy);
expandBufAdd4BE(pReq, matchCount);
for (int i = 0; i < matchCount; i++) {
expandBufAdd1(pReq, matchList[i]->eventKind);
expandBufAdd4BE(pReq, matchList[i]->requestId);
expandBufAdd8BE(pReq, basket.threadId);
dvmJdwpAddLocation(pReq, pThrowLoc);
expandBufAdd1(pReq, JT_OBJECT);
expandBufAdd8BE(pReq, exceptionId);
dvmJdwpAddLocation(pReq, pCatchLoc);
}
/* don't let the GC discard it */
dvmDbgRegisterObjectId(exceptionId);
}
cleanupMatchList(state, matchList, matchCount);
unlockEventMutex(state);
/* send request and possibly suspend ourselves */
if (pReq != NULL) {
int oldStatus = dvmDbgThreadWaiting();
if (suspendPolicy != SP_NONE)
dvmJdwpSetWaitForEventThread(state, basket.threadId);
eventFinish(state, pReq);
suspendByPolicy(state, suspendPolicy);
dvmDbgThreadContinuing(oldStatus);
}
free(nameAlloc);
return matchCount != 0;
}