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2 * Copyright (c) 2004-2014 Apple Inc. All rights reserved.
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
29 #ifndef _SYS_SYSENT_H_
30 #define _SYS_SYSENT_H_
32 #include <sys/appleapiopts.h>
33 #include <sys/cdefs.h>
36 #ifdef __APPLE_API_PRIVATE
38 typedef int32_t sy_call_t(struct proc
*, void *, int *);
39 #if CONFIG_REQUIRES_U32_MUNGING
40 typedef void sy_munge_t(void *);
43 struct sysent
{ /* system call table */
44 sy_call_t
*sy_call
; /* implementing function */
45 #if CONFIG_REQUIRES_U32_MUNGING || (__arm__ && (__BIGGEST_ALIGNMENT__ > 4))
46 sy_munge_t
*sy_arg_munge32
; /* system call arguments munger for 32-bit process */
48 int32_t sy_return_type
; /* system call return types */
49 int16_t sy_narg
; /* number of args */
50 uint16_t sy_arg_bytes
; /* Total size of arguments in bytes for
55 #ifndef __INIT_SYSENT_C__
56 extern struct sysent sysent
[];
57 #endif /* __INIT_SYSENT_C__ */
59 extern unsigned int nsysent
;
62 * Valid values for sy_cancel
64 #define _SYSCALL_CANCEL_NONE 0 /* Not a cancellation point */
65 #define _SYSCALL_CANCEL_PRE 1 /* Canbe cancelled on entry itself */
66 #define _SYSCALL_CANCEL_POST 2 /* Can only be cancelled after syscall is run */
69 * Valid values for sy_return_type
71 #define _SYSCALL_RET_NONE 0
72 #define _SYSCALL_RET_INT_T 1
73 #define _SYSCALL_RET_UINT_T 2
74 #define _SYSCALL_RET_OFF_T 3
75 #define _SYSCALL_RET_ADDR_T 4
76 #define _SYSCALL_RET_SIZE_T 5
77 #define _SYSCALL_RET_SSIZE_T 6
78 #define _SYSCALL_RET_UINT64_T 7
80 #endif /* __APPLE_API_PRIVATE */
81 #endif /* KERNEL_PRIVATE */
83 #endif /* !_SYS_SYSENT_H_ */