| /branches/tracing/kernel/generic/include/proc/thread.h |
|---|
| 211,6 → 211,8 |
| call_t *debug_go_call; |
| unative_t syscall_args[6]; |
| istate_t *uspace_state; |
| bool debug_in_before_thread_runs; |
| /** What type of event are we stopped in or 0 if none */ |
| udebug_event_t cur_event; |
| bool debug_stop; |
| /branches/tracing/kernel/generic/include/udebug/udebug.h |
|---|
| 211,6 → 211,8 |
| void udebug_stoppable_begin(void); |
| void udebug_stoppable_end(void); |
| void udebug_before_thread_runs(void); |
| void udebug_breakpoint_event(uintptr_t addr); |
| void udebug_trap_event(uintptr_t addr); |
| /branches/tracing/kernel/generic/src/time/clock.c |
|---|
| 190,16 → 190,14 |
| spinlock_unlock(&THREAD->lock); |
| if (!ticks && !PREEMPTION_DISABLED) { |
| /* |
| * Make thread stoppable when preempted. |
| * Necessary to be able to stop CPU-bound threads |
| * that don't do any syscalls. |
| */ |
| udebug_stoppable_begin(); |
| scheduler(); |
| udebug_stoppable_end(); |
| /* |
| * Give udebug chance to stop the thread |
| * before it begins executing. |
| */ |
| udebug_before_thread_runs(); |
| } |
| } |
| /branches/tracing/kernel/generic/src/udebug/udebug.c |
|---|
| 193,6 → 193,34 |
| } |
| } |
| /** Upon being scheduled to run, check if the current thread should stop. |
| * |
| * This function is called from clock(). Preemption is enabled. |
| * interrupts are disabled, but since this is called after |
| * being scheduled-in, we can enable them, if we're careful enough |
| * not to allow arbitrary recursion. |
| */ |
| void udebug_before_thread_runs(void) |
| { |
| ipl_t ipl; |
| /* This will happen if we get preempted inside this function. */ |
| if (THREAD->debug_in_before_thread_runs) |
| return; |
| THREAD->debug_in_before_thread_runs = true; |
| ipl = interrupts_enable(); |
| /* Now we're free to do whatever we need (lock mutexes, etc.) */ |
| /* Check if we're supposed to stop */ |
| udebug_stoppable_begin(); |
| udebug_stoppable_end(); |
| interrupts_restore(ipl); |
| THREAD->debug_in_before_thread_runs = false; |
| } |
| void udebug_syscall_event(unative_t a1, unative_t a2, unative_t a3, |
| unative_t a4, unative_t a5, unative_t a6, unative_t id, unative_t rc, |
| bool end_variant) |