Various changes to support OSF1 emulation:

* Move the user stack from VM_MAXUSER_ADDRESS to a place below the 32bit
  boundary (needed to support 32bit OSF programs).  This should also save
  one pagetable per process.
* Add cvtqlsv to the set of instructions handled by the floating point
  software completion code.
* Disable all floating point exceptions by default.
* A minor change to execve to allow the OSF1 image activator to support
  dynamic loading.

2 files changed, 8 insertions, 7 deletions

diff --git a/sys/kern/init_main.c b/sys/kern/init_main.c
index 609e001..9269b26 100644
--- a/sys/kern/init_main.c
+++ b/sys/kern/init_main.c
@@ -39,7 +39,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)init_main.c	8.9 (Berkeley) 1/21/94
- * $Id: init_main.c,v 1.100 1998/12/19 02:55:33 julian Exp $
+ * $Id: init_main.c,v 1.101 1998/12/19 08:23:31 julian Exp $
  */
 
 #include "opt_devfs.h"
@@ -636,7 +636,7 @@ start_init(p)
 	/*
 	 * Need just enough stack to hold the faked-up "execve()" arguments.
 	 */
-	addr = trunc_page(VM_MAXUSER_ADDRESS - PAGE_SIZE);
+	addr = trunc_page(USRSTACK - PAGE_SIZE);
 	if (vm_map_find(&p->p_vmspace->vm_map, NULL, 0, &addr, PAGE_SIZE, FALSE, VM_PROT_ALL, VM_PROT_ALL, 0) != 0)
 		panic("init: couldn't allocate argument space");
 	p->p_vmspace->vm_maxsaddr = (caddr_t)addr;
diff --git a/sys/kern/kern_exec.c b/sys/kern/kern_exec.c
index 93e7bbd..fc23c6e 100644
--- a/sys/kern/kern_exec.c
+++ b/sys/kern/kern_exec.c
@@ -23,7 +23,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: kern_exec.c,v 1.90 1998/12/16 16:28:57 bde Exp $
+ *	$Id: kern_exec.c,v 1.91 1998/12/27 18:03:29 dfr Exp $
  */
 
 #include <sys/param.h>
@@ -149,6 +149,7 @@ interpret:
 	}
 
 	imgp->vp = ndp->ni_vp;
+	imgp->fname = uap->fname;
 
 	/*
 	 * Check file permissions (also 'opens' file)
@@ -323,8 +324,8 @@ exec_fail_dealloc:
 		kmem_free_wakeup(exec_map, (vm_offset_t)imgp->stringbase,
 			ARG_MAX + PAGE_SIZE);
 
-	if (ndp->ni_vp) {
-		vrele(ndp->ni_vp);
+	if (imgp->vp) {
+		vrele(imgp->vp);
 		zfree(namei_zone, ndp->ni_cnd.cn_pnbuf);
 	}
 
@@ -438,8 +439,8 @@ exec_new_vmspace(imgp)
 	if (vmspace->vm_refcnt == 1) {
 		if (vmspace->vm_shm)
 			shmexit(imgp->proc);
-		pmap_remove_pages(&vmspace->vm_pmap, 0, USRSTACK);
-		vm_map_remove(map, 0, USRSTACK);
+		pmap_remove_pages(&vmspace->vm_pmap, 0, VM_MAXUSER_ADDRESS);
+		vm_map_remove(map, 0, VM_MAXUSER_ADDRESS);
 	} else {
 		vmspace_exec(imgp->proc);
 		vmspace = imgp->proc->p_vmspace;