X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/a3d08fcd5120d2aa8303b6349ca8b14e3f284af3..eb6b6ca394357805f2bdba989abae309f718b4d8:/osfmk/kern/syscall_emulation.c diff --git a/osfmk/kern/syscall_emulation.c b/osfmk/kern/syscall_emulation.c index 028e523d9..b2de9dfb8 100644 --- a/osfmk/kern/syscall_emulation.c +++ b/osfmk/kern/syscall_emulation.c @@ -1,170 +1,78 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ - * - * 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 Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * @APPLE_OSREFERENCE_LICENSE_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. + * + * 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 OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. - * - * @APPLE_LICENSE_HEADER_END@ + * 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_OSREFERENCE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ -/* +/* * Mach Operating System * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University * All Rights Reserved. - * + * * Permission to use, copy, modify and ditribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. - * + * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * + * * Carnegie Mellon requests users of this software to return to - * + * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 - * + * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ /* */ - +#include #include #include #include +#include + +#include #include -#include #include #include + +#include #include -#include /* for syscall_emulation_sync */ /* * Exported interface */ -/* - * WARNING: - * This code knows that kalloc() allocates memory most efficiently - * in sizes that are powers of 2, and asks for those sizes. - */ - -/* - * Go from number of entries to size of struct eml_dispatch and back. - */ -#define base_size (sizeof(struct eml_dispatch) - sizeof(eml_routine_t)) -#define count_to_size(count) \ - (base_size + sizeof(vm_offset_t) * (count)) - -#define size_to_count(size) \ - ( ((size) - base_size) / sizeof(vm_offset_t) ) - -/* Forwards */ -kern_return_t -task_set_emulation_vector_internal( - task_t task, - int vector_start, - emulation_vector_t emulation_vector, - mach_msg_type_number_t emulation_vector_count); - -/* - * eml_init: initialize user space emulation code - */ -void -eml_init(void) -{ -} - -/* - * eml_task_reference() [Exported] - * - * Bumps the reference count on the common emulation - * vector. - */ - -void -eml_task_reference( - task_t task, - task_t parent) -{ - register eml_dispatch_t eml; - - if (parent == TASK_NULL) - eml = EML_DISPATCH_NULL; - else - eml = parent->eml_dispatch; - - if (eml != EML_DISPATCH_NULL) { - mutex_lock(&eml->lock); - eml->ref_count++; - mutex_unlock(&eml->lock); - } - task->eml_dispatch = eml; -} - - -/* - * eml_task_deallocate() [Exported] - * - * Cleans up after the emulation code when a process exits. - */ - -void -eml_task_deallocate( - task_t task) -{ - register eml_dispatch_t eml; - - eml = task->eml_dispatch; - if (eml != EML_DISPATCH_NULL) { - int count; - - mutex_lock(&eml->lock); - count = --eml->ref_count; - mutex_unlock(&eml->lock); - - if (count == 0) - kfree((vm_offset_t)eml, count_to_size(eml->disp_count)); - - task->eml_dispatch = EML_DISPATCH_NULL; - } -} - -/* - * task_set_emulation_vector: [Server Entry] - * set a list of emulated system calls for this task. - */ -kern_return_t -task_set_emulation_vector_internal( - task_t task, - int vector_start, - emulation_vector_t emulation_vector, - mach_msg_type_number_t emulation_vector_count) -{ - return KERN_NOT_SUPPORTED; -} - /* * task_set_emulation_vector: [Server Entry] * @@ -173,10 +81,10 @@ task_set_emulation_vector_internal( */ kern_return_t task_set_emulation_vector( - task_t task, - int vector_start, - emulation_vector_t emulation_vector, - mach_msg_type_number_t emulation_vector_count) + __unused task_t task, + __unused int vector_start, + __unused emulation_vector_t emulation_vector, + __unused mach_msg_type_number_t emulation_vector_count) { return KERN_NOT_SUPPORTED; } @@ -189,10 +97,10 @@ task_set_emulation_vector( */ kern_return_t task_get_emulation_vector( - task_t task, - int *vector_start, /* out */ - emulation_vector_t *emulation_vector, /* out */ - mach_msg_type_number_t *emulation_vector_count) /* out */ + __unused task_t task, + __unused int *vector_start, /* out */ + __unused emulation_vector_t *emulation_vector, /* out */ + __unused mach_msg_type_number_t *emulation_vector_count)/* out */ { return KERN_NOT_SUPPORTED; } @@ -203,13 +111,9 @@ task_get_emulation_vector( */ kern_return_t task_set_emulation( - task_t task, - vm_offset_t routine_entry_pt, - int routine_number) + __unused task_t task, + __unused vm_offset_t routine_entry_pt, + __unused int routine_number) { return KERN_NOT_SUPPORTED; } - - - -