1 files changed, 19 insertions, 0 deletions
diff --git a/wrap.c b/wrap.c
new file mode 100644
index 0000000..5ed0bc8
--- /dev/null
+++ b/wrap.c
@@ -0,0 +1,19 @@
+#include <stddef.h>
+
+#include "wrap.h"
+
+void *(*_REAL(malloc))(size_t size) = NULL;
+void (*_REAL(free))(void *ptr) = NULL;
+void *(*_REAL(calloc))(size_t nmemb, size_t size) = NULL;
+void *(*_REAL(realloc))(void *ptr, size_t size) = NULL;
+
+#ifdef __GNUC__
+void __attribute__((constructor)) __wrap_init()
+{
+    // set the real values up as soon as possible
+    REAL(malloc);
+    REAL(free);
+    REAL(calloc);
+    REAL(realloc);
+}
+#endif