WebSVN – HelenOS – Diff – /trunk/kernel/generic/src/udebug/udebug.c



        mutex_unlock(&TASK->udebug.lock);
 
        udebug_wait_for_go(&THREAD->udebug.go_wq);
 
        goto restart;
        /* Must try again - have to lose stoppability atomically. */
    } else {
        ++TASK->udebug.not_stoppable_count;
        ASSERT(THREAD->udebug.stoppable == true);
        THREAD->udebug.stoppable = false;
 

    }
 
    mutex_lock(&TASK->udebug.lock);
    mutex_lock(&THREAD->udebug.lock);
 
    /* Must only generate events when in debugging session and is go. */
    if (THREAD->udebug.debug_active != true ||
        THREAD->udebug.stop == true ||
        (TASK->udebug.evmask & UDEBUG_EVMASK(etype)) == 0) {
        mutex_unlock(&THREAD->udebug.lock);
        mutex_unlock(&TASK->udebug.lock);

    mutex_lock(&THREAD->udebug.lock);
 
    LOG("udebug_thread_e_event\n");
    LOG("- check state\n");
 
    /* Must only generate events when in debugging session. */
    if (THREAD->udebug.debug_active != true) {
/*      printf("- debug_active: %s, udebug.stop: %s\n",
            THREAD->udebug.debug_active ? "yes(+)" : "no(-)",
            THREAD->udebug.stop ? "yes(-)" : "no(+)");*/
        mutex_unlock(&THREAD->udebug.lock);

    call = THREAD->udebug.go_call;
    THREAD->udebug.go_call = NULL;
    IPC_SET_RETVAL(call->data, 0);
    IPC_SET_ARG1(call->data, UDEBUG_EVENT_THREAD_E);
 
    /* Prevent any further debug activity in thread. */
    THREAD->udebug.debug_active = false;
    THREAD->udebug.cur_event = 0;       /* none */
    THREAD->udebug.stop = true; /* set to initial value */
 
    ipc_answer(&TASK->answerbox, call);
 
    mutex_unlock(&THREAD->udebug.lock);
    mutex_unlock(&TASK->udebug.lock);
 
    /* Leave int_lock enabled. */
    /* This event does not sleep - debugging has finished in this thread. */
}
 
/**
 * Terminate task debugging session.
 *

        flags = t->flags;
 
        spinlock_unlock(&t->lock);
        interrupts_restore(ipl);
 
        /* Only process userspace threads. */
        if ((flags & THREAD_FLAG_USPACE) != 0) {
            /* Prevent any further debug activity in thread. */
            t->udebug.debug_active = false;
            t->udebug.cur_event = 0;    /* none */
 
            /* Is the thread still go? */
            if (t->udebug.stop == false) {
                /*
                * Yes, so clear go. As debug_active == false,
                 * this doesn't affect anything.
                 */

Subversion Repositories HelenOS

(root)/trunk/kernel/generic/src/udebug/udebug.c – Rev 3468 → 3600

Rev 3468		Rev 3600
Line 245...		Line 245...
245	mutex_unlock(&TASK->udebug.lock);	245	mutex_unlock(&TASK->udebug.lock);
246		246
247	udebug_wait_for_go(&THREAD->udebug.go_wq);	247	udebug_wait_for_go(&THREAD->udebug.go_wq);
248		248
249	goto restart;	249	goto restart;
250	/* must try again - have to lose stoppability atomically */	250	/* Must try again - have to lose stoppability atomically. */
251	} else {	251	} else {
252	++TASK->udebug.not_stoppable_count;	252	++TASK->udebug.not_stoppable_count;
253	ASSERT(THREAD->udebug.stoppable == true);	253	ASSERT(THREAD->udebug.stoppable == true);
254	THREAD->udebug.stoppable = false;	254	THREAD->udebug.stoppable = false;
255		255
Line 319...		Line 319...
319	}	319	}
320		320
321	mutex_lock(&TASK->udebug.lock);	321	mutex_lock(&TASK->udebug.lock);
322	mutex_lock(&THREAD->udebug.lock);	322	mutex_lock(&THREAD->udebug.lock);
323		323
324	/* Must only generate events when in debugging session and have go */	324	/* Must only generate events when in debugging session and is go. */
325	if (THREAD->udebug.debug_active != true \|\|	325	if (THREAD->udebug.debug_active != true \|\|
326	THREAD->udebug.stop == true \|\|	326	THREAD->udebug.stop == true \|\|
327	(TASK->udebug.evmask & UDEBUG_EVMASK(etype)) == 0) {	327	(TASK->udebug.evmask & UDEBUG_EVMASK(etype)) == 0) {
328	mutex_unlock(&THREAD->udebug.lock);	328	mutex_unlock(&THREAD->udebug.lock);
329	mutex_unlock(&TASK->udebug.lock);	329	mutex_unlock(&TASK->udebug.lock);
Line 437...		Line 437...
437	mutex_lock(&THREAD->udebug.lock);	437	mutex_lock(&THREAD->udebug.lock);
438		438
439	LOG("udebug_thread_e_event\n");	439	LOG("udebug_thread_e_event\n");
440	LOG("- check state\n");	440	LOG("- check state\n");
441		441
442	/* Must only generate events when in debugging session */	442	/* Must only generate events when in debugging session. */
443	if (THREAD->udebug.debug_active != true) {	443	if (THREAD->udebug.debug_active != true) {
444	/* printf("- debug_active: %s, udebug.stop: %s\n",	444	/* printf("- debug_active: %s, udebug.stop: %s\n",
445	THREAD->udebug.debug_active ? "yes(+)" : "no(-)",	445	THREAD->udebug.debug_active ? "yes(+)" : "no(-)",
446	THREAD->udebug.stop ? "yes(-)" : "no(+)");*/	446	THREAD->udebug.stop ? "yes(-)" : "no(+)");*/
447	mutex_unlock(&THREAD->udebug.lock);	447	mutex_unlock(&THREAD->udebug.lock);
Line 454...		Line 454...
454	call = THREAD->udebug.go_call;	454	call = THREAD->udebug.go_call;
455	THREAD->udebug.go_call = NULL;	455	THREAD->udebug.go_call = NULL;
456	IPC_SET_RETVAL(call->data, 0);	456	IPC_SET_RETVAL(call->data, 0);
457	IPC_SET_ARG1(call->data, UDEBUG_EVENT_THREAD_E);	457	IPC_SET_ARG1(call->data, UDEBUG_EVENT_THREAD_E);
458		458
459	/* Prevent any further debug activity in thread */	459	/* Prevent any further debug activity in thread. */
460	THREAD->udebug.debug_active = false;	460	THREAD->udebug.debug_active = false;
461	THREAD->udebug.cur_event = 0; /* none */	461	THREAD->udebug.cur_event = 0; /* none */
462	THREAD->udebug.stop = true; /* set to initial value */	462	THREAD->udebug.stop = true; /* set to initial value */
463		463
464	ipc_answer(&TASK->answerbox, call);	464	ipc_answer(&TASK->answerbox, call);
465		465
466	mutex_unlock(&THREAD->udebug.lock);	466	mutex_unlock(&THREAD->udebug.lock);
467	mutex_unlock(&TASK->udebug.lock);	467	mutex_unlock(&TASK->udebug.lock);
468		468
469	/* Leave int_lock enabled */	469	/* Leave int_lock enabled. */
470	/* This event does not sleep - debugging has finished in this thread */	470	/* This event does not sleep - debugging has finished in this thread. */
471	}	471	}
472		472
473	/**	473	/**
474	* Terminate task debugging session.	474	* Terminate task debugging session.
475	*	475	*
Line 510...		Line 510...
510	flags = t->flags;	510	flags = t->flags;
511		511
512	spinlock_unlock(&t->lock);	512	spinlock_unlock(&t->lock);
513	interrupts_restore(ipl);	513	interrupts_restore(ipl);
514		514
515	/* Only process userspace threads */	515	/* Only process userspace threads. */
516	if ((flags & THREAD_FLAG_USPACE) != 0) {	516	if ((flags & THREAD_FLAG_USPACE) != 0) {
517	/* Prevent any further debug activity in thread */	517	/* Prevent any further debug activity in thread. */
518	t->udebug.debug_active = false;	518	t->udebug.debug_active = false;
519	t->udebug.cur_event = 0; /* none */	519	t->udebug.cur_event = 0; /* none */
520		520
521	/* Still has go? */	521	/* Is the thread still go? */
522	if (t->udebug.stop == false) {	522	if (t->udebug.stop == false) {
523	/*	523	/*
524	* Yes, so clear go. As debug_active == false,	524	* Yes, so clear go. As debug_active == false,
525	* this doesn't affect anything.	525	* this doesn't affect anything.
526	*/	526	*/