Module Name: src Committed By: reinoud Date: Sat Aug 27 21:17:27 UTC 2011
Modified Files: src/sys/arch/usermode/usermode: syscall.c Log Message: Add dirty copy of child_return() To generate a diff of this commit: cvs rdiff -u -r1.2 -r1.3 src/sys/arch/usermode/usermode/syscall.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/sys/arch/usermode/usermode/syscall.c diff -u src/sys/arch/usermode/usermode/syscall.c:1.2 src/sys/arch/usermode/usermode/syscall.c:1.3 --- src/sys/arch/usermode/usermode/syscall.c:1.2 Wed Oct 21 16:07:00 2009 +++ src/sys/arch/usermode/usermode/syscall.c Sat Aug 27 21:17:26 2011 @@ -1,4 +1,4 @@ -/* $NetBSD: syscall.c,v 1.2 2009/10/21 16:07:00 snj Exp $ */ +/* $NetBSD: syscall.c,v 1.3 2011/08/27 21:17:26 reinoud Exp $ */ /*- * Copyright (c) 2007 Jared D. McNeill <jmcne...@invisible.ca> @@ -27,21 +27,37 @@ */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: syscall.c,v 1.2 2009/10/21 16:07:00 snj Exp $"); +__KERNEL_RCSID(0, "$NetBSD: syscall.c,v 1.3 2011/08/27 21:17:26 reinoud Exp $"); #include <sys/types.h> #include <sys/param.h> #include <sys/systm.h> #include <sys/proc.h> +#include <sys/lwp.h> +#include <sys/sched.h> +#include <sys/userret.h> +#include <machine/pcb.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; + + mi_userret(l); +// ktrsysret(SYS_fork, 0, 0); } void syscall(void) { +printf("syscall called !\n"); }