[src/trunk]: src/sys/arch/sparc64/sparc64 Pass on the P_32 flag on fork and s...

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

details:   https://anonhg.NetBSD.org/src/rev/2da0669af474
branches:  trunk
changeset: 532248:2da0669af474
user:      eeh <eeh%NetBSD.org@localhost>
date:      Mon Jun 03 18:08:43 2002 +0000

description:
Pass on the P_32 flag on fork and support fork syscall returns using
%g7 as the completion address.

diffstat:

 sys/arch/sparc64/sparc64/vm_machdep.c |  10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diffs (31 lines):

diff -r 4240ace6a517 -r 2da0669af474 sys/arch/sparc64/sparc64/vm_machdep.c
--- a/sys/arch/sparc64/sparc64/vm_machdep.c     Mon Jun 03 16:17:57 2002 +0000
+++ b/sys/arch/sparc64/sparc64/vm_machdep.c     Mon Jun 03 18:08:43 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: vm_machdep.c,v 1.42 2002/05/14 02:34:15 eeh Exp $ */
+/*     $NetBSD: vm_machdep.c,v 1.43 2002/06/03 18:08:43 eeh Exp $ */
 
 /*
  * Copyright (c) 1996-2002 Eduardo Horvath.  All rights reserved.
@@ -281,6 +281,9 @@
        } else
                p2->p_md.md_fpstate = NULL;
 
+       if (p1->p_flag & P_32)
+               p2->p_flag |= P_32;
+
        /*
         * Setup (kernel) stack frame that will by-pass the child
         * out of the kernel. (The trap frame invariably resides at
@@ -299,7 +302,10 @@
                tf2->tf_out[6] = (u_int64_t)(u_long)stack + stacksize;
 
        /* Duplicate efforts of syscall(), but slightly differently */
-       if (tf2->tf_global[1] & SYSCALL_G2RFLAG) {
+       if (tf2->tf_global[1] & SYSCALL_G7RFLAG) {
+               /* jmp %g2 (or %g7, deprecated) on success */
+               tf2->tf_npc = tf2->tf_global[7];
+       } else if (tf2->tf_global[1] & SYSCALL_G2RFLAG) {
                /* jmp %g2 (or %g7, deprecated) on success */
                tf2->tf_npc = tf2->tf_global[2];
        } else {