SunOS emulation trap#2 handling from NetBSD (gwr via scottr)

diff --git a/sys/arch/amiga/amiga/trap.c b/sys/arch/amiga/amiga/trap.c
index 3b8ed3b..6ea8e96 100644 (file)
--- a/sys/arch/amiga/amiga/trap.c
+++ b/sys/arch/amiga/amiga/trap.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: trap.c,v 1.12 1997/02/21 08:51:49 niklas Exp $        */
+/*     $OpenBSD: trap.c,v 1.13 1997/04/10 08:51:04 niklas Exp $        */
 /*     $NetBSD: trap.c,v 1.53 1997/01/16 15:30:57 gwr Exp $    */
 
 /*
@@ -708,13 +708,14 @@ trap(type, code, v, frame)
        case T_TRAP15|T_USER:
 #ifdef COMPAT_SUNOS
                /*
-                * XXX This comment/code is not consistent XXX
-                * SunOS seems to use Trap #2 for some obscure 
-                * fpu operations.  So far, just ignore it, but
-                * DONT trap on it.. 
+                * SunOS uses Trap #2 for a "CPU cache flush"
+                * Just flush the on-chip caches and return.
+                * XXX - Too bad m68k BSD uses trap 2...
                 */
                if (p->p_emul == &emul_sunos) {
-                       userret(p, frame.f_pc, sticks); 
+                       ICIA();
+                       DCIU();
+                       /* get out fast */
                        return;
                }
 #endif