niklas pointed out the new MDP_UNCACHE_WX might break fork/exec.

always set/clear in setregs() now

2 files changed, 12 insertions, 16 deletions

diff --git a/sys/arch/m68k/m68k/sunos_machdep.c b/sys/arch/m68k/m68k/sunos_machdep.c
index 25e3ed7694f..20250bd9565 100644
--- a/sys/arch/m68k/m68k/sunos_machdep.c
+++ b/sys/arch/m68k/m68k/sunos_machdep.c
@@ -88,21 +88,6 @@ struct sunos_sigframe {
 };
 
 /*
- * SunOS' ld.so does self-modifying code without knowing about the 040's
- * cache purging needs.  So we need to uncache writeable executable pages.
- */
-void
-sunos_setregs(p, pack, stack, retval)
-	register struct proc *p;
-	struct exec_package *pack;
-	u_long stack;
-	register_t *retval;
-{
-	setregs(p, pack, stack, retval);
-	p->p_md.md_flags |= MDP_UNCACHE_WX;
-}
-
-/*
  * much simpler sendsig() for SunOS processes, as SunOS does the whole
  * context-saving in usermode. For now, no hardware information (ie.
  * frames for buserror etc) is saved. This could be fatal, so I take 
diff --git a/sys/arch/mvme68k/mvme68k/machdep.c b/sys/arch/mvme68k/mvme68k/machdep.c
index f237d375f85..697c8406519 100644
--- a/sys/arch/mvme68k/mvme68k/machdep.c
+++ b/sys/arch/mvme68k/mvme68k/machdep.c
@@ -1,4 +1,4 @@
-/*	$Id: machdep.c,v 1.4 1995/11/28 01:24:40 deraadt Exp $ */
+/*	$Id: machdep.c,v 1.5 1995/11/29 17:02:49 deraadt Exp $ */
 
 /*
  * Copyright (c) 1995 Theo de Raadt
@@ -416,6 +416,17 @@ setregs(p, pack, stack, retval)
 	p->p_addr->u_pcb.pcb_fpregs.fpf_null = 0;
 	m68881_restore(&p->p_addr->u_pcb.pcb_fpregs);
 #endif
+#ifdef COMPAT_SUNOS
+	/*
+	 * SunOS' ld.so does self-modifying code without knowing
+	 * about the 040's cache purging needs.  So we need to uncache
+	 * writeable executable pages.
+	 */
+	if (p->p_emul == &emul_sunos)
+		p->p_md.md_flags |= MDP_UNCACHE_WX;
+	else
+		p->p_md.md_flags &= ~MDP_UNCACHE_WX;
+#endif
 #ifdef COMPAT_HPUX
 	p->p_md.md_flags &= ~MDP_HPUXMMAP;
 	if (p->p_emul == &emul_hpux) {