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altos: ARM ABI requires 8-byte aligned stack
[fw/altos]
/
src
/
kernel
/
ao_task.h
diff --git
a/src/kernel/ao_task.h
b/src/kernel/ao_task.h
index d27ef060384b375100930fd886d0fb7506326d3f..03b629693c0e44baa9ba61a24caa39edc6d61ff4 100644
(file)
--- a/
src/kernel/ao_task.h
+++ b/
src/kernel/ao_task.h
@@
-26,10
+26,10
@@
#define HAS_TASK_INFO 1
#endif
#define HAS_TASK_INFO 1
#endif
-/* arm stacks must be
32
-bit aligned */
+/* arm stacks must be
64
-bit aligned */
#ifndef AO_STACK_ALIGNMENT
#ifdef __arm__
#ifndef AO_STACK_ALIGNMENT
#ifdef __arm__
-#define AO_STACK_ALIGNMENT __attribute__ ((aligned(
4
)))
+#define AO_STACK_ALIGNMENT __attribute__ ((aligned(
8
)))
#else
#define AO_STACK_ALIGNMENT
#endif
#else
#define AO_STACK_ALIGNMENT
#endif
@@
-50,11
+50,11
@@
struct ao_task {
struct ao_list queue;
struct ao_list alarm_queue;
#endif
struct ao_list queue;
struct ao_list alarm_queue;
#endif
- /* Provide both 32-bit and 8-bit stacks
, always 32-bit aligned
*/
+ /* Provide both 32-bit and 8-bit stacks */
union {
uint32_t stack32[AO_STACK_SIZE>>2];
uint8_t stack8[AO_STACK_SIZE];
union {
uint32_t stack32[AO_STACK_SIZE>>2];
uint8_t stack8[AO_STACK_SIZE];
- };
+ }
AO_STACK_ALIGNMENT
;
#if HAS_SAMPLE_PROFILE
uint32_t ticks;
uint32_t yields;
#if HAS_SAMPLE_PROFILE
uint32_t ticks;
uint32_t yields;