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rtems: Relax mode checks in rtems_signal_catch()

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Check only for invalid modes if a valid handler is presented to
rtems_signal_catch().  When NULL is used for the handler, ASR processing
is disabled and the mode is not used.

Update #4244.
This commit is contained in:
Sebastian Huber
2021-03-17 08:09:49 +01:00
parent fa1e7ea054
commit 53bd5e3246
1 changed files with 8 additions and 2 deletions
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10
cpukit/rtems/src/signalcatch.c
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@@ -39,7 +39,10 @@ rtems_status_code rtems_signal_catch(
ISR_lock_Context lock_context;
#if defined(RTEMS_SMP) || CPU_ENABLE_ROBUST_THREAD_DISPATCH == TRUE
if ( !_Modes_Is_interrupt_level_supported( mode_set ) ) {
if (
asr_handler != NULL &&
!_Modes_Is_interrupt_level_supported( mode_set )
) {
return RTEMS_NOT_IMPLEMENTED;
}
#endif
@@ -47,7 +50,10 @@ rtems_status_code rtems_signal_catch(
executing = _Thread_State_acquire_for_executing( &lock_context );
#if defined(RTEMS_SMP)
if ( !_Modes_Is_preempt_mode_supported( mode_set, executing ) ) {
if (
asr_handler != NULL &&
!_Modes_Is_preempt_mode_supported( mode_set, executing )
) {
_Thread_State_release( executing, &lock_context );
return RTEMS_NOT_IMPLEMENTED;
}