diff options
Diffstat (limited to 'cpukit/score/cpu/i386/rtems/score/cpu.h')
| -rw-r--r-- | cpukit/score/cpu/i386/rtems/score/cpu.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/cpukit/score/cpu/i386/rtems/score/cpu.h b/cpukit/score/cpu/i386/rtems/score/cpu.h index 354166b336..c8218d1a04 100644 --- a/cpukit/score/cpu/i386/rtems/score/cpu.h +++ b/cpukit/score/cpu/i386/rtems/score/cpu.h @@ -287,6 +287,16 @@ SCORE_EXTERN void *_CPU_Interrupt_stack_high; uint32_t _CPU_ISR_Get_level( void ); +/* Make sure interrupt stack has space for ISR + * 'vector' arg at the top and that it is aligned + * properly. + */ + +#define _CPU_Interrupt_stack_setup( _lo, _hi ) \ + do { \ + _hi = (void*)(((uintptr_t)(_hi) - 4) & ~ (CPU_STACK_ALIGNMENT - 1)); \ + } while (0) + #endif /* ASM */ /* end of ISR handler macros */ |