wrong comment, the function retfromsyscall does not exist.
ﾶ
Reference: /n/patches.lsub.org/patch/retfromsyscall
Date: Thu Jul 12 16:05:48 CES 2012
Signed-off-by: esoriano@lsub.org

--- /sys/src/nix/k10/syscall.c	Thu Apr 12 12:26:28 2012
+++ /sys/src/nix/k10/syscall.c	Thu Jul 12 16:00:27 2012
@@ -317,7 +317,6 @@
 	/*
 	 * NIX: for the execac() syscall, what follows is done within
 	 * the system call, because it never returns.
-	 * See acore.c:/^retfromsyscall
 	 */
 
 	noerrorsleft();