zephyr: Enable stack checking and micropython.mem_info().

zephyr/main.c

@@ -7,6 +7,7 @@
 #include "py/runtime.h"
 #include "py/repl.h"
 #include "py/gc.h"
+#include "py/stackctrl.h"
 #include "lib/utils/pyexec.h"
 
 void do_str(const char *src, mp_parse_input_kind_t input_kind) {
@@ -35,6 +36,9 @@ static char heap[16 * 1024];
 int real_main(void) {
     int stack_dummy;
     stack_top = (char*)&stack_dummy;
+    mp_stack_set_top(stack_top);
+    // Should be set to stack size in prj.mdef minus fuzz factor
+    mp_stack_set_limit(3584);
 
     #if MICROPY_ENABLE_GC
     gc_init(heap, heap + sizeof(heap));

zephyr/mpconfigport.h

@@ -5,6 +5,7 @@
 #define MICROPY_COMP_CONST (0)
 #define MICROPY_COMP_DOUBLE_TUPLE_ASSIGN (0)
 
+#define MICROPY_STACK_CHECK         (1)
 #define MICROPY_ENABLE_GC           (1)
 #define MICROPY_HELPER_REPL         (1)
 #define MICROPY_REPL_AUTO_INDENT    (1)
@@ -23,6 +24,7 @@
 #define MICROPY_PY_COLLECTIONS      (0)
 #define MICROPY_PY_CMATH            (0)
 #define MICROPY_PY_IO               (0)
+#define MICROPY_PY_MICROPYTHON_MEM_INFO (1)
 #define MICROPY_PY_STRUCT           (0)
 #define MICROPY_PY_SYS_MODULES      (0)
 #define MICROPY_LONGINT_IMPL (MICROPY_LONGINT_IMPL_LONGLONG)