1*27b03b36SApple OSS Distributions /* 2*27b03b36SApple OSS Distributions * Copyright (c) 2004-2014 Apple Inc. All rights reserved. 3*27b03b36SApple OSS Distributions * 4*27b03b36SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*27b03b36SApple OSS Distributions * 6*27b03b36SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*27b03b36SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*27b03b36SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*27b03b36SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*27b03b36SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*27b03b36SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*27b03b36SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*27b03b36SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*27b03b36SApple OSS Distributions * 15*27b03b36SApple OSS Distributions * Please obtain a copy of the License at 16*27b03b36SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*27b03b36SApple OSS Distributions * 18*27b03b36SApple OSS Distributions * The Original Code and all software distributed under the License are 19*27b03b36SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*27b03b36SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*27b03b36SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*27b03b36SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*27b03b36SApple OSS Distributions * Please see the License for the specific language governing rights and 24*27b03b36SApple OSS Distributions * limitations under the License. 25*27b03b36SApple OSS Distributions * 26*27b03b36SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*27b03b36SApple OSS Distributions */ 28*27b03b36SApple OSS Distributions 29*27b03b36SApple OSS Distributions #ifndef _SYS_SYSENT_H_ 30*27b03b36SApple OSS Distributions #define _SYS_SYSENT_H_ 31*27b03b36SApple OSS Distributions 32*27b03b36SApple OSS Distributions #include <sys/appleapiopts.h> 33*27b03b36SApple OSS Distributions #include <sys/cdefs.h> 34*27b03b36SApple OSS Distributions 35*27b03b36SApple OSS Distributions #ifdef KERNEL_PRIVATE 36*27b03b36SApple OSS Distributions #ifdef __APPLE_API_PRIVATE 37*27b03b36SApple OSS Distributions 38*27b03b36SApple OSS Distributions typedef int32_t sy_call_t(struct proc *, void *, int *); 39*27b03b36SApple OSS Distributions #if CONFIG_REQUIRES_U32_MUNGING 40*27b03b36SApple OSS Distributions typedef void sy_munge_t(void *); 41*27b03b36SApple OSS Distributions #elif __arm__ && (__BIGGEST_ALIGNMENT__ > 4) 42*27b03b36SApple OSS Distributions typedef int sy_munge_t(const void *, void *); 43*27b03b36SApple OSS Distributions #endif 44*27b03b36SApple OSS Distributions 45*27b03b36SApple OSS Distributions struct sysent { /* system call table */ 46*27b03b36SApple OSS Distributions sy_call_t *sy_call; /* implementing function */ 47*27b03b36SApple OSS Distributions #if CONFIG_REQUIRES_U32_MUNGING || (__arm__ && (__BIGGEST_ALIGNMENT__ > 4)) 48*27b03b36SApple OSS Distributions sy_munge_t *sy_arg_munge32; /* system call arguments munger for 32-bit process */ 49*27b03b36SApple OSS Distributions #endif 50*27b03b36SApple OSS Distributions int32_t sy_return_type; /* system call return types */ 51*27b03b36SApple OSS Distributions int16_t sy_narg; /* number of args */ 52*27b03b36SApple OSS Distributions uint16_t sy_arg_bytes; /* Total size of arguments in bytes for 53*27b03b36SApple OSS Distributions * 32-bit system calls 54*27b03b36SApple OSS Distributions */ 55*27b03b36SApple OSS Distributions }; 56*27b03b36SApple OSS Distributions 57*27b03b36SApple OSS Distributions extern const struct sysent sysent[]; 58*27b03b36SApple OSS Distributions extern const unsigned int nsysent; 59*27b03b36SApple OSS Distributions 60*27b03b36SApple OSS Distributions /* 61*27b03b36SApple OSS Distributions * Valid values for sy_cancel 62*27b03b36SApple OSS Distributions */ 63*27b03b36SApple OSS Distributions #define _SYSCALL_CANCEL_NONE 0 /* Not a cancellation point */ 64*27b03b36SApple OSS Distributions #define _SYSCALL_CANCEL_PRE 1 /* Canbe cancelled on entry itself */ 65*27b03b36SApple OSS Distributions #define _SYSCALL_CANCEL_POST 2 /* Can only be cancelled after syscall is run */ 66*27b03b36SApple OSS Distributions 67*27b03b36SApple OSS Distributions /* 68*27b03b36SApple OSS Distributions * Valid values for sy_return_type 69*27b03b36SApple OSS Distributions */ 70*27b03b36SApple OSS Distributions #define _SYSCALL_RET_NONE 0 71*27b03b36SApple OSS Distributions #define _SYSCALL_RET_INT_T 1 72*27b03b36SApple OSS Distributions #define _SYSCALL_RET_UINT_T 2 73*27b03b36SApple OSS Distributions #define _SYSCALL_RET_OFF_T 3 74*27b03b36SApple OSS Distributions #define _SYSCALL_RET_ADDR_T 4 75*27b03b36SApple OSS Distributions #define _SYSCALL_RET_SIZE_T 5 76*27b03b36SApple OSS Distributions #define _SYSCALL_RET_SSIZE_T 6 77*27b03b36SApple OSS Distributions #define _SYSCALL_RET_UINT64_T 7 78*27b03b36SApple OSS Distributions 79*27b03b36SApple OSS Distributions #endif /* __APPLE_API_PRIVATE */ 80*27b03b36SApple OSS Distributions #endif /* KERNEL_PRIVATE */ 81*27b03b36SApple OSS Distributions 82*27b03b36SApple OSS Distributions #endif /* !_SYS_SYSENT_H_ */ 83