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 [email protected] 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