1 | /* |
2 | * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
5 | * |
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. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
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. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | /* |
29 | * @OSF_COPYRIGHT@ |
30 | */ |
31 | /* |
32 | * Mach Operating System |
33 | * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University |
34 | * All Rights Reserved. |
35 | * |
36 | * Permission to use, copy, modify and distribute this software and its |
37 | * documentation is hereby granted, provided that both the copyright |
38 | * notice and this permission notice appear in all copies of the |
39 | * software, derivative works or modified versions, and any portions |
40 | * thereof, and that both notices appear in supporting documentation. |
41 | * |
42 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" |
43 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR |
44 | * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. |
45 | * |
46 | * Carnegie Mellon requests users of this software to return to |
47 | * |
48 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU |
49 | * School of Computer Science |
50 | * Carnegie Mellon University |
51 | * Pittsburgh PA 15213-3890 |
52 | * |
53 | * any improvements or extensions that they make and grant Carnegie Mellon |
54 | * the rights to redistribute these changes. |
55 | */ |
56 | /* |
57 | */ |
58 | |
59 | #ifndef _KERN_SYSCALL_SW_H_ |
60 | #define _KERN_SYSCALL_SW_H_ |
61 | |
62 | #include <mach_assert.h> |
63 | #include <mach/kern_return.h> |
64 | |
65 | /* |
66 | * mach_trap_stack indicates the trap may discard |
67 | * its kernel stack. Some architectures may need |
68 | * to save more state in the pcb for these traps. |
69 | */ |
70 | |
71 | /* Keep this in sync with DTrace's version in bsd/dev/dtrace/systrace.c */ |
72 | #if CONFIG_REQUIRES_U32_MUNGING |
73 | typedef void mach_munge_t(void *); |
74 | #elif __arm__ && (__BIGGEST_ALIGNMENT__ > 4) |
75 | typedef int mach_munge_t(const void *, void *); |
76 | #endif |
77 | |
78 | typedef struct { |
79 | unsigned char mach_trap_arg_count; /* Number of trap arguments (Arch independant) */ |
80 | unsigned char mach_trap_u32_words; /* number of 32-bit words to copyin for U32 */ |
81 | unsigned char mach_trap_returns_port; |
82 | unsigned char __mach_trap_padding; |
83 | kern_return_t (*mach_trap_function)(void *); |
84 | #if CONFIG_REQUIRES_U32_MUNGING || (__arm__ && (__BIGGEST_ALIGNMENT__ > 4)) |
85 | mach_munge_t *mach_trap_arg_munge32; /* system call argument munger routine for 32-bit */ |
86 | #endif |
87 | #if MACH_ASSERT |
88 | const char *mach_trap_name; |
89 | #endif /* MACH_ASSERT */ |
90 | } mach_trap_t; |
91 | |
92 | #define MACH_TRAP_TABLE_COUNT 128 |
93 | |
94 | extern const mach_trap_t mach_trap_table[MACH_TRAP_TABLE_COUNT]; |
95 | extern const int mach_trap_count; |
96 | extern const char * const mach_syscall_name_table[MACH_TRAP_TABLE_COUNT]; |
97 | |
98 | #if CONFIG_REQUIRES_U32_MUNGING || (__arm__ && (__BIGGEST_ALIGNMENT__ > 4)) |
99 | #define MACH_TRAP_MUNGE(arg) .mach_trap_arg_munge32 = arg, |
100 | #else |
101 | #define MACH_TRAP_MUNGE(arg) |
102 | #endif |
103 | |
104 | #if MACH_ASSERT |
105 | #define MACH_TRAP_NAME(arg) .mach_trap_name = #arg, |
106 | #else |
107 | #define MACH_TRAP_NAME(arg) |
108 | #endif |
109 | |
110 | #define MACH_TRAP(name, arg_count, u32_arg_words, munge32, ...) { \ |
111 | .mach_trap_arg_count = arg_count, \ |
112 | .mach_trap_u32_words = u32_arg_words, \ |
113 | .mach_trap_function = (kern_return_t (*)(void *)) (name), \ |
114 | MACH_TRAP_MUNGE(munge32) \ |
115 | MACH_TRAP_NAME(name) \ |
116 | __VA_ARGS__ \ |
117 | } |
118 | |
119 | #endif /* _KERN_SYSCALL_SW_H_ */ |
120 | |