OrionLibC

diff --git a/include/stdlib.h b/include/stdlib.h
new file mode 100644
index 0000000..b1265c2
--- /dev/null
+++ b/include/stdlib.h
@@ -0,0 +1,25 @@
+#ifndef _STDLIB_H
+#define _STDLIB_H
+
+#define EXIT_SUCCESS 0
+#define EXIT_FAILURE 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+_Noreturn void abort(void);
+int atexit(void (*)(void));
+int atoi(const char *);
+void free(void *);
+char *getenv(const char *);
+void *malloc(size_t);
+void *calloc(size_t, size_t);
+_Noreturn void exit(int status);
+int abs(int);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif