xnu-1504.3.12.tar.gz

[apple/xnu.git] / bsd / dev / i386 / stubs.c

diff --git a/bsd/dev/i386/stubs.c b/bsd/dev/i386/stubs.c
index f4a56c042d455856c84a780f3ab68e90c25687a2..ddc759c29b54cf2eb1f1f7458084f9c511aee40f 100644 (file)
--- a/bsd/dev/i386/stubs.c
+++ b/bsd/dev/i386/stubs.c
@@ -1,31 +1,29 @@
 /*
- * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
+ * 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. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
  * 
- * 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.  The rights granted to you under the 
- * License may not be used to create, or enable the creation or 
- * redistribution of, unlawful or unlicensed copies of an Apple operating 
- * system, or to circumvent, violate, or enable the circumvention or 
- * violation of, any terms of an Apple operating system software license 
- * agreement.
- *
- * 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 
- * 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 
+ * 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
+ * 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.
- *
- * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
+ * 
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * Copyright (c) 1997 by Apple Computer, Inc., all rights reserved
@@ -45,12 +43,12 @@
 #include <kern/task.h>
 #include <kern/thread.h>
 #include <vm/vm_map.h>
+#include <machine/machine_routines.h>
 
 /* XXX should be elsewhere (cpeak) */
-extern int     set_bsduthreadargs(thread_t, void *, void *);
 extern void    *get_bsduthreadarg(thread_t);
 extern int     *get_bsduthreadrval(thread_t);
-extern int     *get_bsduthreadlowpridelay(thread_t);
+extern void    *find_user_regs(thread_t);
 
 /* 
  * copy a null terminated string from the kernel address space into
@@ -119,56 +117,27 @@ copywithin(void *src, void *dst, size_t count)
        return 0;
 }
 
-int
-set_bsduthreadargs(thread_t th, void * pcb, __unused void *ignored_arg)
-{
-       struct uthread * ut;
-       struct proc *p = current_proc();
-
-       ut = get_bsdthread_info(th);
-       ut->uu_ar0 = (int *)pcb;
-
-       /*
-        * Delayed binding of thread credential to process credential.
-        *
-        * XXX This doesn't really belong here, but the i386 code has a
-        * XXX number of seemingly gratuitous structural differences that
-        * XXX make this the most appropriate place to do the work.
-        */
-       if (ut->uu_ucred != p->p_ucred &&
-           (ut->uu_flag & UT_SETUID) == 0) {
-               kauth_cred_t old = ut->uu_ucred;
-               proc_lock(p);
-               ut->uu_ucred = p->p_ucred;
-               kauth_cred_ref(ut->uu_ucred);
-               proc_unlock(p);
-               if (old != NOCRED)
-                       kauth_cred_rele(old);
-       }
-
-       return(1);
-}
-
 void *
 get_bsduthreadarg(thread_t th)
 {
+        void   *arg_ptr;
 struct uthread *ut;
+  
        ut = get_bsdthread_info(th);
-       return((void *)(ut->uu_arg));
+
+       if (ml_thread_is64bit(th) == TRUE)
+               arg_ptr = (void *)saved_state64(find_user_regs(th));
+       else
+               arg_ptr = (void *)(ut->uu_arg);
+
+       return(arg_ptr);
 }
 
 int *
 get_bsduthreadrval(thread_t th)
 {
 struct uthread *ut;
-       ut = get_bsdthread_info(th);
-       return(&ut->uu_rval[0]);
-}
 
-int *
-get_bsduthreadlowpridelay(thread_t th)
-{
-struct uthread *ut;
        ut = get_bsdthread_info(th);
-       return(&ut->uu_lowpri_delay);
+       return(&ut->uu_rval[0]);
 }