diff options
Diffstat (limited to 'cpukit/score/include/rtems/score/threaddispatch.h')
| -rw-r--r-- | cpukit/score/include/rtems/score/threaddispatch.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/cpukit/score/include/rtems/score/threaddispatch.h b/cpukit/score/include/rtems/score/threaddispatch.h index f4ca096783..0238f8f5d5 100644 --- a/cpukit/score/include/rtems/score/threaddispatch.h +++ b/cpukit/score/include/rtems/score/threaddispatch.h @@ -28,6 +28,18 @@ extern "C" { * @{ */ +#if defined(RTEMS_SMP) || ( CPU_ENABLE_ROBUST_THREAD_DISPATCH == TRUE ) +/** + * @brief Enables a robust thread dispatch. + * + * On each change of the thread dispatch disable level from one to zero the + * interrupt status is checked. In case interrupts are disabled and SMP is + * enabled or the CPU port needs it, then the system terminates with the fatal + * internal error INTERNAL_ERROR_BAD_THREAD_DISPATCH_ENVIRONMENT. + */ +#define RTEMS_SCORE_ROBUST_THREAD_DISPATCH +#endif + /** * @brief Indicates if the executing thread is inside a thread dispatch * critical section. @@ -206,7 +218,12 @@ RTEMS_INLINE_ROUTINE void _Thread_Dispatch_enable( Per_CPU_Control *cpu_self ) _ISR_Local_disable( level ); - if ( cpu_self->dispatch_necessary ) { + if ( + cpu_self->dispatch_necessary +#if defined(RTEMS_SCORE_ROBUST_THREAD_DISPATCH) + || !_ISR_Is_enabled( level ) +#endif + ) { _Thread_Do_dispatch( cpu_self, level ); } else { cpu_self->thread_dispatch_disable_level = 0; |