xnu-344.23.tar.gz

[apple/xnu.git] / bsd / kern / kern_exec.c

diff --git a/bsd/kern/kern_exec.c b/bsd/kern/kern_exec.c
index 88b0a60c3ada531a0a271af0b9887ab0aec429dc..6eb6ebe8fd295ee59e2bb18397bfdd1511566c6d 100644 (file)
--- a/bsd/kern/kern_exec.c
+++ b/bsd/kern/kern_exec.c
@@ -3,22 +3,19 @@
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
  * 
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
  * 
  * @APPLE_LICENSE_HEADER_END@
  */
@@ -169,7 +166,7 @@ execve(p, uap, retval)
        vm_map_t old_map;
        vm_map_t map;
        int i;
-       boolean_t               clean_regions = FALSE;
+       boolean_t               new_shared_regions = FALSE;
        union {
                /* #! and name of interpreter */
                char                    ex_shell[SHSIZE];
@@ -535,11 +532,23 @@ again:
        VOP_UNLOCK(vp, 0, p);
        if(ws_cache_name) {
                tws_handle_startup_file(task, cred->cr_uid, 
-                       ws_cache_name, vp, &clean_regions);
+                       ws_cache_name, vp, &new_shared_regions);
+       }
+       if (new_shared_regions) {
+               shared_region_mapping_t new_shared_region;
+               shared_region_mapping_t old_shared_region;
+       
+               if (shared_file_create_system_region(&new_shared_region))
+                       panic("couldn't create system_shared_region\n");
+
+               vm_get_shared_region(task, &old_shared_region);
+               vm_set_shared_region(task, new_shared_region);
+
+               shared_region_mapping_dealloc(old_shared_region);
        }
 
        lret = load_machfile(vp, mach_header, arch_offset,
-               arch_size, &load_result, thr_act, map, clean_regions);
+                               arch_size, &load_result, thr_act, map);
 
        if (lret != LOAD_SUCCESS) {
                error = load_return_to_errno(lret);
@@ -832,8 +841,8 @@ create_unix_stack(map, user_stack, customstack, p)
 
        p->user_stack = user_stack;
        if (!customstack) {
-               size = round_page_64(unix_stack_size(p));
-               addr = trunc_page_32(user_stack - size);
+               size = round_page(unix_stack_size(p));
+               addr = trunc_page(user_stack - size);
                return (vm_allocate(map,&addr, size, FALSE));
        } else
                return(KERN_SUCCESS);