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Compare Revisions

• This comparison shows the changes necessary to convert path

  → /trunk/kernel/generic @ 3614

  → /trunk/kernel/generic @ 3617

  ↔ Reverse comparison

• Compare Path:	Rev

  With Path:	Rev

Ignore whitespace Rev 3614 → Rev 3617

/trunk/kernel/generic/include/udebug/udebug.h
194,7 → 194,7
unative_t a4, unative_t a5, unative_t a6, unative_t id, unative_t rc,
bool end_variant);
void udebug_thread_b_event(struct thread *t);
void udebug_thread_b_event_attach(struct thread *t, struct task *ta);
void udebug_thread_e_event(void);
void udebug_stoppable_begin(void);

/trunk/kernel/generic/src/proc/thread.c
763,14 → 763,20
return (unative_t) rc;
}
}
#ifdef CONFIG_UDEBUG
/*
* Generate udebug THREAD_B event and attach the thread.
* This must be done atomically (with the debug locks held),
* otherwise we would either miss some thread or receive
* THREAD_B events for threads that already existed
* and could be detected with THREAD_READ before.
*/
udebug_thread_b_event_attach(t, TASK);
#else
thread_attach(t, TASK);
#endif
thread_ready(t);
#ifdef CONFIG_UDEBUG
/* Generate udebug THREAD_B event */
udebug_thread_b_event(t);
#endif
return 0;
} else
free(kernel_uarg);

/trunk/kernel/generic/src/udebug/udebug.c
305,15 → 305,23
udebug_wait_for_go(&THREAD->udebug.go_wq);
}
/** Thread-creation event hook.
/** Thread-creation event hook combined with attaching the thread.
*
* Must be called when a new userspace thread is created in the debugged
* task. Generates a THREAD_B event.
* task. Generates a THREAD_B event. Also attaches the thread @a t
* to the task @a ta.
*
* This is necessary to avoid a race condition where the BEGIN and THREAD_READ
* requests would be handled inbetween attaching the thread and checking it
* for being in a debugging session to send the THREAD_B event. We could then
* either miss threads or get some threads both in the thread list
* and get a THREAD_B event for them.
*
* @param t Structure of the thread being created. Not locked, as the
* thread is not executing yet.
* @param ta Task to which the thread should be attached.
*/
void udebug_thread_b_event(struct thread *t)
void udebug_thread_b_event_attach(struct thread *t, struct task *ta)
{
call_t *call;
320,6 → 328,8
mutex_lock(&TASK->udebug.lock);
mutex_lock(&THREAD->udebug.lock);
thread_attach(t, ta);
LOG("udebug_thread_b_event\n");
LOG("- check state\n");