/*
- * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2004 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) 1995, 1997 Apple Computer, Inc. All Rights Reserved */
/*
kern_return_t result;
if (parent->task == kernel_task)
- result = task_create_internal(TASK_NULL, FALSE, &task);
+ result = task_create_internal(TASK_NULL, FALSE, FALSE, &task);
else
- result = task_create_internal(parent->task, TRUE, &task);
+ result = task_create_internal(parent->task, TRUE, (parent->p_flag & P_LP64), &task);
if (result != KERN_SUCCESS)
printf("fork/procdup: task_create failed. Code: 0x%x\n", result);
child->task = task;
set_bsdtask_info(task, child);
if (parent->p_flag & P_LP64) {
task_set_64bit(task, TRUE);
+ vm_map_set_64bit(get_task_map(task));
child->p_flag |= P_LP64;
-#ifdef __PPC__
/* LP64todo - clean up this hacked mapping of commpage */
pmap_map_sharedpage(task, get_map_pmap(get_task_map(task)));
vm_map_commpage64(get_task_map(task));
-#endif /* __PPC__ */
} else {
task_set_64bit(task, FALSE);
+ vm_map_set_32bit(get_task_map(task));
child->p_flag &= ~P_LP64;
+#ifdef __i386__
+ /*
+ * On Intel, the comm page doesn't get mapped automatically
+ * because it goes beyond the end of the VM map in the current
+ * 3GB/1GB address space model.
+ * XXX This explicit mapping will probably become unnecessary
+ * when we switch to the new 4GB/4GB address space model.
+ */
+ vm_map_commpage32(get_task_map(task));
+#endif /* __i386__ */
}
if (child->p_nice != 0)
resetpriority(child);
* Increase reference counts on shared objects.
* The p_stats and p_sigacts substructs are set in vm_fork.
*/
- p2->p_flag = (p1->p_flag & (P_LP64 | P_CLASSIC | P_AFFINITY));
+ p2->p_flag = (p1->p_flag & (P_LP64 | P_TRANSLATED | P_AFFINITY));
if (p1->p_flag & P_PROFIL)
startprofclock(p2);
/*
uth_parent = (struct uthread *)get_bsdthread_info(current_thread());
if ((task == current_task()) &&
(uth_parent != NULL) &&
- (uth_parent->uu_ucred != NOCRED)) {
+ (IS_VALID_CRED(uth_parent->uu_ucred))) {
+ /*
+ * XXX The new thread is, in theory, being created in context
+ * XXX of parent thread, so a direct reference to the parent
+ * XXX is OK.
+ */
+ kauth_cred_ref(uth_parent->uu_ucred);
uth->uu_ucred = uth_parent->uu_ucred;
- kauth_cred_ref(uth->uu_ucred);
/* the credential we just inherited is an assumed credential */
if (uth_parent->uu_flag & UT_SETUID)
uth->uu_flag |= UT_SETUID;
sel->wql = 0;
}
- if (uth->uu_ucred != NOCRED)
- kauth_cred_rele(uth->uu_ucred);
+ if (IS_VALID_CRED(uth->uu_ucred)) {
+ kauth_cred_t oldcred = uth->uu_ucred;
+ uth->uu_ucred = NOCRED;
+ kauth_cred_unref(&oldcred);
+ }
if ((task != kernel_task) && p) {
funnel_state = thread_funnel_set(kernel_flock, TRUE);
projects / apple / xnu.git / blobdiff