[src/trunk]: src/sys/arch/usermode/usermode Clean child_return()

[reinoud <reinoud%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/fb55b0881e13
branches:  trunk
changeset: 768899:fb55b0881e13
user:      reinoud <reinoud%NetBSD.org@localhost>
date:      Sun Aug 28 19:39:05 2011 +0000

description:
Clean child_return()

diffstat:

 sys/arch/usermode/usermode/syscall.c |  16 +++++++++-------
 1 files changed, 9 insertions(+), 7 deletions(-)

diffs (50 lines):

diff -r 784daf1b777f -r fb55b0881e13 sys/arch/usermode/usermode/syscall.c
--- a/sys/arch/usermode/usermode/syscall.c      Sun Aug 28 19:38:20 2011 +0000
+++ b/sys/arch/usermode/usermode/syscall.c      Sun Aug 28 19:39:05 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: syscall.c,v 1.3 2011/08/27 21:17:26 reinoud Exp $ */
+/* $NetBSD: syscall.c,v 1.4 2011/08/28 19:39:05 reinoud Exp $ */
 
 /*-
  * Copyright (c) 2007 Jared D. McNeill <jmcneill%invisible.ca@localhost>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: syscall.c,v 1.3 2011/08/27 21:17:26 reinoud Exp $");
+__KERNEL_RCSID(0, "$NetBSD: syscall.c,v 1.4 2011/08/28 19:39:05 reinoud Exp $");
 
 #include <sys/types.h>
 #include <sys/param.h>
@@ -36,24 +36,26 @@
 #include <sys/lwp.h>
 #include <sys/sched.h>
 #include <sys/userret.h>
+#include <sys/ktrace.h>
+#include <sys/syscall.h>
 #include <machine/pcb.h>
+#include <machine/thunk.h>
 
 void   syscall(void);
 
 void
 child_return(void *arg)
 {
-printf("child returned! arg %p\n", arg);
-printf("xxx now what? switch to `userland' i.e. new code?\n");
        lwp_t *l = arg;
 //     struct pcb *pcb = lwp_getpcb(l);
 //     struct trapframe *frame = pcb->pcb_tf;
 
-/* XXX? */
-       //frame->tf_r0 = 0;
+       /* XXX? */
+//     frame->registers[0] = 0;
 
+printf("child returned! arg %p\n", arg);
        mi_userret(l);
-//     ktrsysret(SYS_fork, 0, 0);
+       ktrsysret(SYS_fork, 0, 0);
 }
 
 void