Add stack checking functions

2020-02-21 23:01:04 +01:00
parent b5d4bf5528
commit 68fc473372
3 changed files with 71 additions and 2 deletions
--- a/stm-firmware/include/reflow-controller/stack-check.h
+++ b/stm-firmware/include/reflow-controller/stack-check.h
@@ -18,8 +18,24 @@
 * If not, see <http://www.gnu.org/licenses/>.
 */

-
 #ifndef __STACK_CHECK_H__
 #define __STACK_CHECK_H__

+#include <stdint.h>
+
+#define STACK_CHECK_MIN_HEAP_GAP 16UL
+
+int32_t stack_check_get_usage();
+
+int32_t stack_check_get_free();
+
+static inline uint32_t read_stack_pointer()
+{
+	uint32_t stack_pointer;
+
+	__asm__ __volatile__ ("mov %0, sp\n\t" : "=r"(stack_pointer) : : );
+
+	return stack_pointer;
+}
+
 #endif /* __STACK_CHECK_H__ */