From 84e6f15c828869eb7d293096cfcfa0563b5752b3 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Thu, 10 Nov 2016 12:02:28 +0100 Subject: score: Robust thread dispatch On SMP configurations, it is a fatal error to call blocking operating system with interrupts disabled, since this prevents delivery of inter-processor interrupts. This could lead to executing threads which are not allowed to execute resulting in undefined behaviour. The ARM Cortex-M port has a similar problem, since the interrupt state is not a part of the thread context. Update #2811. --- cpukit/score/cpu/powerpc/rtems/score/cpu.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'cpukit/score/cpu/powerpc/rtems/score/cpu.h') diff --git a/cpukit/score/cpu/powerpc/rtems/score/cpu.h b/cpukit/score/cpu/powerpc/rtems/score/cpu.h index 903bfa5216..91f8f63342 100644 --- a/cpukit/score/cpu/powerpc/rtems/score/cpu.h +++ b/cpukit/score/cpu/powerpc/rtems/score/cpu.h @@ -555,6 +555,8 @@ typedef struct { /* conservative setting (FALSE); probably doesn't affect performance too much */ #define CPU_USE_DEFERRED_FP_SWITCH FALSE +#define CPU_ENABLE_ROBUST_THREAD_DISPATCH FALSE + /* * Processor defined structures required for cpukit/score. */ -- cgit v1.2.3