sim: fix color running stack crash when use -Os
#include "sim_internal.h"
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define STACK_MARGIN_WORDS 32
+
/****************************************************************************
* Public Functions
****************************************************************************/
@@ -171,7 +177,7 @@ void nostackprotect_function sim_stack_color(void *stackbase,
if (nbytes == 0) /* 0: colorize the running stack */
{
stkend = up_getsp();
- if (stkend > (uintptr_t)&sp)
+ if (stkend < (uintptr_t)&sp)
{
stkend = (uintptr_t)&sp;
}
@@ -183,6 +189,7 @@ void nostackprotect_function sim_stack_color(void *stackbase,
stkend = STACK_ALIGN_DOWN(stkend);
nwords = (stkend - (uintptr_t)stackbase) >> 2;
+ nwords = nwords > STACK_MARGIN_WORDS ? nwords - STACK_MARGIN_WORDS : 0;
/* Set the entire stack to the coloration value */
