[src/trunk]: src/sys/compat/netbsd32 Fix _lwp_ctl for big endian 64-bit platf...

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

details:   https://anonhg.NetBSD.org/src/rev/153a7a3d4edb
branches:  trunk
changeset: 808360:153a7a3d4edb
user:      matt <matt%NetBSD.org@localhost>
date:      Fri May 15 07:45:15 2015 +0000

description:
Fix _lwp_ctl for big endian 64-bit platforms.  (little-endian too but not
as noticable).

diffstat:

 sys/compat/netbsd32/netbsd32_lwp.c |  18 ++++++++++++------
 1 files changed, 12 insertions(+), 6 deletions(-)

diffs (38 lines):

diff -r 3fc7ec65b7b0 -r 153a7a3d4edb sys/compat/netbsd32/netbsd32_lwp.c
--- a/sys/compat/netbsd32/netbsd32_lwp.c        Fri May 15 06:58:59 2015 +0000
+++ b/sys/compat/netbsd32/netbsd32_lwp.c        Fri May 15 07:45:15 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: netbsd32_lwp.c,v 1.15 2013/03/29 01:04:30 christos Exp $       */
+/*     $NetBSD: netbsd32_lwp.c,v 1.16 2015/05/15 07:45:15 matt Exp $   */
 
 /*
  *  Copyright (c) 2005, 2006, 2007 The NetBSD Foundation.
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: netbsd32_lwp.c,v 1.15 2013/03/29 01:04:30 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: netbsd32_lwp.c,v 1.16 2015/05/15 07:45:15 matt Exp $");
 
 #include <sys/types.h>
 #include <sys/param.h>
@@ -280,9 +280,15 @@
                syscallarg(int) features;
                syscallarg(netbsd32_pointer_t) address;
        } */
-       struct sys__lwp_ctl_args ua;
+       int error, features;
+       vaddr_t vaddr;
 
-       NETBSD32TO64_UAP(features);
-       NETBSD32TOP_UAP(address, struct lwpctl *);
-       return sys__lwp_ctl(l, &ua, retval);
+       features = SCARG(uap, features);
+       features &= ~(LWPCTL_FEATURE_CURCPU | LWPCTL_FEATURE_PCTR);
+       if (features != 0)
+               return ENODEV;
+       if ((error = lwp_ctl_alloc(&vaddr)) != 0)
+               return error;
+       return copyout(&vaddr, SCARG_P32(uap, address),
+           sizeof(netbsd32_pointer_t));
 }