diff --git a/libc/runtime/crti.S b/libc/runtime/crti.S
new file mode 100644
index 0000000..9385571
--- /dev/null
+++ b/libc/runtime/crti.S
@@ -0,0 +1,13 @@
+.section .init
+.global _init
+.type _init, @function
+_init:
+	push %rbp
+	movq %rsp, %rbp
+
+.section .fini
+.global _fini
+.type _fini, @function
+_fini:
+	push %rbp
+	movq %rsp, %rbp
diff --git a/libc/runtime/crti.c b/libc/runtime/crti.c
deleted file mode 100644
index e69de29..0000000
diff --git a/libc/runtime/crtn.S b/libc/runtime/crtn.S
new file mode 100644
index 0000000..2fe55b4
--- /dev/null
+++ b/libc/runtime/crtn.S
@@ -0,0 +1,7 @@
+.section .init
+	popq %rbp
+	ret
+
+.section .fini
+	popq %rbp
+	ret
diff --git a/libc/runtime/crtn.c b/libc/runtime/crtn.c
deleted file mode 100644
index e69de29..0000000