darling-xnu/osfmk/kern/syscall_sw.h
2023-05-16 21:41:14 -07:00

117 lines
4.3 KiB
C

/*
* Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
*
* @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, 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 distribute 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.
*/
/*
*/
#ifndef _KERN_SYSCALL_SW_H_
#define _KERN_SYSCALL_SW_H_
#include <mach_assert.h>
/*
* mach_trap_stack indicates the trap may discard
* its kernel stack. Some architectures may need
* to save more state in the pcb for these traps.
*/
#if CONFIG_REQUIRES_U32_MUNGING
typedef void mach_munge_t(void *);
#elif __arm__ && (__BIGGEST_ALIGNMENT__ > 4)
typedef int mach_munge_t(const void *, void *);
#endif
typedef struct {
int mach_trap_arg_count; /* Number of trap arguments (Arch independant) */
kern_return_t (*mach_trap_function)(void *);
#if CONFIG_REQUIRES_U32_MUNGING || (__arm__ && (__BIGGEST_ALIGNMENT__ > 4))
mach_munge_t *mach_trap_arg_munge32; /* system call argument munger routine for 32-bit */
#endif
int mach_trap_u32_words; /* number of 32-bit words to copyin for U32 */
#if MACH_ASSERT
const char* mach_trap_name;
#endif /* MACH_ASSERT */
} mach_trap_t;
#define MACH_TRAP_TABLE_COUNT 128
extern const mach_trap_t mach_trap_table[];
extern const int mach_trap_count;
#if CONFIG_REQUIRES_U32_MUNGING || (__arm__ && (__BIGGEST_ALIGNMENT__ > 4))
#if !MACH_ASSERT
#define MACH_TRAP(name, arg_count, u32_arg_words, munge32) \
{ (arg_count), (kern_return_t (*)(void *)) (name), munge32, (u32_arg_words) }
#else /* !MACH_ASSERT */
#define MACH_TRAP(name, arg_count, u32_arg_words, munge32) \
{ (arg_count), (kern_return_t (*)(void *)) (name), munge32, (u32_arg_words), #name }
#endif /* !MACH_ASSERT */
#else /* !CONFIG_REQUIRES_U32_MUNGING || (__arm__ && (__BIGGEST_ALIGNMENT__ > 4)) */
#if !MACH_ASSERT
#define MACH_TRAP(name, arg_count, u32_arg_words, munge32) \
{ (arg_count), (kern_return_t (*)(void *)) (name), (u32_arg_words) }
#else /* !MACH_ASSERT */
#define MACH_TRAP(name, arg_count, u32_arg_words, munge32) \
{ (arg_count), (kern_return_t (*)(void *)) (name), (u32_arg_words), #name }
#endif /* !MACH_ASSERT */
#endif /* !CONFIG_REQUIRES_U32_MUNGING */
#endif /* _KERN_SYSCALL_SW_H_ */