stmhal: Use stackctrl framework.

stmhal/main.c

@@ -40,6 +40,7 @@
 #include "parse.h"
 #include "obj.h"
 #include "runtime.h"
+#include "stackctrl.h"
 #include "gc.h"
 #include "gccollect.h"
 #include "pybstdio.h"
@@ -186,6 +187,11 @@ static const char fresh_readme_txt[] =
 int main(void) {
     // TODO disable JTAG
 
+    stack_ctrl_init();
+    // Stack limit should be less than real stack size, so we
+    // had chance to recover from limit hit.
+    stack_set_limit(&_ram_end - &_heap_end - 512);
+
     /* STM32F4xx HAL library initialization:
          - Configure the Flash prefetch, instruction and Data caches
          - Configure the Systick to generate an interrupt each 1 msec