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Rev 2834 Rev 2835
Line 130... Line 130...
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    ipl = interrupts_disable();
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    ipl = interrupts_disable();
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    ta = get_lock_callee_task(phone);
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    ta = get_lock_callee_task(phone);
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    klog_printf("task %llu", ta->taskid);
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    klog_printf("task %llu", ta->taskid);
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    //TODO: UDEBUG_TS_BEGINNING
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    if (ta->dt_state == UDEBUG_TS_BEGINNING &&
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    if (ta->dt_state != UDEBUG_TS_ACTIVE) {
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        ta->dt_state != UDEBUG_TS_ACTIVE) {
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        spinlock_unlock(&ta->lock);
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        spinlock_unlock(&ta->lock);
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        interrupts_restore(ipl);
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        interrupts_restore(ipl);
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        klog_printf("udebug_rp_begin(): task not in TS_BEGINNING");
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        klog_printf("udebug_rp_begin(): task not being debugged");
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        return EINVAL;
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        return EINVAL;
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    }
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    }
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    /* Clear debug_active from all of the task's userspace threads */
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    /* Finish debugging of all userspace threads */
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 - 
 
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    for (cur = ta->th_head.next; cur != &ta->th_head; cur = cur->next) {
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    for (cur = ta->th_head.next; cur != &ta->th_head; cur = cur->next) {
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        t = list_get_instance(cur, thread_t, th_link);
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        t = list_get_instance(cur, thread_t, th_link);
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        spinlock_lock(&t->lock);
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        spinlock_lock(&t->lock);
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        if ((t->flags & THREAD_FLAG_USPACE) != 0)
 - 
 
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            t->debug_active = true;
 - 
 
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        spinlock_unlock(&t->lock);
 - 
 
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    }
 - 
 
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    /* Now respond to unanswered GO calls and reset thread states */
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        /* Only process userspace threads */
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    for (cur = ta->th_head.next; cur != &ta->th_head; cur = cur->next) {
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        if ((t->flags & THREAD_FLAG_USPACE) != 0) {
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        t = list_get_instance(cur, thread_t, th_link);
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            /* Prevent any further debug activity in thread */
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 - 
 
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        spinlock_lock(&t->lock);
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            t->debug_active = false;
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        /* Still has go? */
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            /* Still has go? */
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        if ((t->flags & THREAD_FLAG_USPACE) != 0 &&
 - 
 
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            t->debug_stop == false) {
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            if (t->debug_stop == false) {
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            /*
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                /*
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             * Yes, so clear go. As debug_active == false,
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                * Yes, so clear go. As debug_active == false,
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             * this doesn't affect anything.
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                 * this doesn't affect anything.
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             */
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                 */
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            t->debug_stop = true;  
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                t->debug_stop = true;  
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            /* Answer GO call */
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                /* Answer GO call */
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            ipc_answer(&ta->answerbox, t->debug_go_call);
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                ipc_answer(&ta->answerbox, t->debug_go_call);
171 
        } else {
 164 
            } else {
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            /*
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                /*
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             * Debug_stop is already at initial value.
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                 * Debug_stop is already at initial value.
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             * Yet this means the thread needs waking up.
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                 * Yet this means the thread needs waking up.
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             */
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                 */
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            waitq_wakeup(&t->go_wq, WAKEUP_FIRST);
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                waitq_wakeup(&t->go_wq, WAKEUP_FIRST);
- 
 
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            }
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        }
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        }
- 
 
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        spinlock_unlock(&t->lock);
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        spinlock_unlock(&t->lock);
179 
    }
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    }
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    ta->dt_state = UDEBUG_TS_INACTIVE;
 176 
    ta->dt_state = UDEBUG_TS_INACTIVE;
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