diff options
Diffstat (limited to 'os/ports')
| -rw-r--r-- | os/ports/GCC/ARMCMx/chcore_v6m.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/os/ports/GCC/ARMCMx/chcore_v6m.h b/os/ports/GCC/ARMCMx/chcore_v6m.h index 0b0a41858..1a086b2bf 100644 --- a/os/ports/GCC/ARMCMx/chcore_v6m.h +++ b/os/ports/GCC/ARMCMx/chcore_v6m.h @@ -102,8 +102,9 @@ struct intctx { * @details This size depends on the idle thread implementation, usually
* the idle thread should take no more space than those reserved
* by @p INT_REQUIRED_STACK.
- * @note In this port it is set to 4 because the idle thread does have
- * a stack frame when compiling without optimizations.
+ * @note In this port it is set to 8 because the idle thread does have
+ * a stack frame when compiling without optimizations. You may
+ * reduce this value to zero when compiling with optimizations.
*/
#ifndef IDLE_THREAD_STACK_SIZE
#define IDLE_THREAD_STACK_SIZE 8
@@ -116,8 +117,9 @@ struct intctx { * This value can be zero on those architecture where there is a
* separate interrupt stack and the stack space between @p intctx and
* @p extctx is known to be zero.
- * @note This port requires some extra stack space for interrupt handling
- * representing the frame of the function @p chSchDoRescheduleI().
+ * @note In this port it is conservatively set to 16 because the function
+ * @p chSchDoRescheduleI() can have a stack frame, expecially with
+ * compiler optimizations disabled.
*/
#ifndef INT_REQUIRED_STACK
#define INT_REQUIRED_STACK 16
|