thesis: Complete 2.2

thesis/listings/wrap.c

@@ -0,0 +1,10 @@
+#include <stddef.h>
+
+extern void *__real_malloc(size_t size);
+
+void *__wrap_malloc(size_t size) {
+    // before call to malloc
+    void *ret = __real_malloc(size);
+    // after call to malloc
+    return ret;
+}