1*8d741a5dSApple OSS Distributions/* 2*8d741a5dSApple OSS Distributions * Copyright (c) 1999-2007 Apple Inc. All rights reserved. 3*8d741a5dSApple OSS Distributions * 4*8d741a5dSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*8d741a5dSApple OSS Distributions * 6*8d741a5dSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*8d741a5dSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*8d741a5dSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*8d741a5dSApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*8d741a5dSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*8d741a5dSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*8d741a5dSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*8d741a5dSApple OSS Distributions * terms of an Apple operating system software license agreement. 14*8d741a5dSApple OSS Distributions * 15*8d741a5dSApple OSS Distributions * Please obtain a copy of the License at 16*8d741a5dSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*8d741a5dSApple OSS Distributions * 18*8d741a5dSApple OSS Distributions * The Original Code and all software distributed under the License are 19*8d741a5dSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*8d741a5dSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*8d741a5dSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*8d741a5dSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*8d741a5dSApple OSS Distributions * Please see the License for the specific language governing rights and 24*8d741a5dSApple OSS Distributions * limitations under the License. 25*8d741a5dSApple OSS Distributions * 26*8d741a5dSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*8d741a5dSApple OSS Distributions */ 28*8d741a5dSApple OSS Distributions/* Copyright (c) 1992 NeXT Computer, Inc. All rights reserved. */ 29*8d741a5dSApple OSS Distributions 30*8d741a5dSApple OSS Distributions#include "SYS.h" 31*8d741a5dSApple OSS Distributions 32*8d741a5dSApple OSS Distributions#if defined(__i386__) 33*8d741a5dSApple OSS Distributions 34*8d741a5dSApple OSS DistributionsLEAF(___syscall, 0) 35*8d741a5dSApple OSS Distributions popl %ecx // ret addr 36*8d741a5dSApple OSS Distributions popl %eax // syscall number 37*8d741a5dSApple OSS Distributions pushl %ecx 38*8d741a5dSApple OSS Distributions UNIX_SYSCALL_TRAP 39*8d741a5dSApple OSS Distributions movl (%esp),%edx // add one element to stack so 40*8d741a5dSApple OSS Distributions pushl %ecx // caller "pop" will work 41*8d741a5dSApple OSS Distributions jnb 2f 42*8d741a5dSApple OSS Distributions BRANCH_EXTERN(tramp_cerror) 43*8d741a5dSApple OSS Distributions2: 44*8d741a5dSApple OSS DistributionsEND(___syscall) 45*8d741a5dSApple OSS Distributions 46*8d741a5dSApple OSS Distributions#elif defined(__x86_64__) 47*8d741a5dSApple OSS Distributions 48*8d741a5dSApple OSS Distributions// For x86-64, the kernel slides the argument list for us. 49*8d741a5dSApple OSS Distributions// The number of arguments here is variable, but our macros ignore 50*8d741a5dSApple OSS Distributions// that value anyway. 51*8d741a5dSApple OSS Distributions__SYSCALL(___syscall, syscall, 0); 52*8d741a5dSApple OSS Distributions 53*8d741a5dSApple OSS Distributions#elif defined(__arm__) 54*8d741a5dSApple OSS Distributions 55*8d741a5dSApple OSS Distributions__SYSCALL(___syscall, syscall, 7) 56*8d741a5dSApple OSS Distributions 57*8d741a5dSApple OSS Distributions#elif defined(__arm64__) 58*8d741a5dSApple OSS Distributions 59*8d741a5dSApple OSS Distributions/* 60*8d741a5dSApple OSS Distributions * Ignore nominal number of arguments: just pop from stack and let the kernel 61*8d741a5dSApple OSS Distributions * interpret. 62*8d741a5dSApple OSS Distributions */ 63*8d741a5dSApple OSS Distributions#include <mach/arm64/asm.h> 64*8d741a5dSApple OSS DistributionsMI_ENTRY_POINT(___syscall) 65*8d741a5dSApple OSS Distributions ldp x1, x2, [sp] 66*8d741a5dSApple OSS Distributions ldp x3, x4, [sp, #16] 67*8d741a5dSApple OSS Distributions ldp x5, x6, [sp, #32] 68*8d741a5dSApple OSS Distributions ldr x7, [sp, #48] 69*8d741a5dSApple OSS Distributions DO_SYSCALL(SYS_syscall, cerror) 70*8d741a5dSApple OSS Distributions ret 71*8d741a5dSApple OSS Distributions#else 72*8d741a5dSApple OSS Distributions#error Unsupported architecture 73*8d741a5dSApple OSS Distributions#endif 74