diff options
Diffstat (limited to 'src/kernel/ao_task.h')
| -rw-r--r-- | src/kernel/ao_task.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/kernel/ao_task.h b/src/kernel/ao_task.h index f1dbd654..30b018ff 100644 --- a/src/kernel/ao_task.h +++ b/src/kernel/ao_task.h @@ -26,6 +26,17 @@ #define HAS_TASK_INFO 1 #endif +/* arm stacks must be 32-bit aligned */ +#ifdef __arm__ +#define AO_STACK_ALIGNMENT __attribute__ ((aligned(4))) +#endif +#ifdef SDCC +#define AO_STACK_ALIGNMENT +#endif +#ifdef __AVR__ +#define AO_STACK_ALIGNMENT +#endif + /* An AltOS task */ struct ao_task { __xdata void *wchan; /* current wait channel (NULL if running) */ @@ -37,7 +48,7 @@ struct ao_task { struct ao_list queue; struct ao_list alarm_queue; #endif - uint8_t stack[AO_STACK_SIZE]; /* saved stack */ + uint8_t stack[AO_STACK_SIZE] AO_STACK_ALIGNMENT; /* saved stack */ #if HAS_SAMPLE_PROFILE uint32_t ticks; uint32_t yields; |