auto import from //depot/cupcake/@135843
diff --git a/libc/arch-arm/syscalls/__rt_sigtimedwait.S b/libc/arch-arm/syscalls/__rt_sigtimedwait.S
new file mode 100644
index 0000000..0fb1573
--- /dev/null
+++ b/libc/arch-arm/syscalls/__rt_sigtimedwait.S
@@ -0,0 +1,19 @@
+/* autogenerated by gensyscalls.py */
+#include <sys/linux-syscalls.h>
+
+ .text
+ .type __rt_sigtimedwait, #function
+ .globl __rt_sigtimedwait
+ .align 4
+ .fnstart
+
+__rt_sigtimedwait:
+ .save {r4, r7}
+ stmfd sp!, {r4, r7}
+ ldr r7, =__NR_rt_sigtimedwait
+ swi #0
+ ldmfd sp!, {r4, r7}
+ movs r0, r0
+ bxpl lr
+ b __set_syscall_errno
+ .fnend