1*f6217f89SApple OSS Distributions/* 2*f6217f89SApple OSS Distributions * Copyright (c) 1999-2007 Apple Inc. All rights reserved. 3*f6217f89SApple OSS Distributions * 4*f6217f89SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*f6217f89SApple OSS Distributions * 6*f6217f89SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*f6217f89SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*f6217f89SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*f6217f89SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*f6217f89SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*f6217f89SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*f6217f89SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*f6217f89SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*f6217f89SApple OSS Distributions * 15*f6217f89SApple OSS Distributions * Please obtain a copy of the License at 16*f6217f89SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*f6217f89SApple OSS Distributions * 18*f6217f89SApple OSS Distributions * The Original Code and all software distributed under the License are 19*f6217f89SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*f6217f89SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*f6217f89SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*f6217f89SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*f6217f89SApple OSS Distributions * Please see the License for the specific language governing rights and 24*f6217f89SApple OSS Distributions * limitations under the License. 25*f6217f89SApple OSS Distributions * 26*f6217f89SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*f6217f89SApple OSS Distributions */ 28*f6217f89SApple OSS Distributions/* Copyright (c) 1992 NeXT Computer, Inc. All rights reserved. */ 29*f6217f89SApple OSS Distributions 30*f6217f89SApple OSS Distributions#include "SYS.h" 31*f6217f89SApple OSS Distributions 32*f6217f89SApple OSS Distributions#if defined(__i386__) 33*f6217f89SApple OSS Distributions 34*f6217f89SApple OSS DistributionsLEAF(___syscall, 0) 35*f6217f89SApple OSS Distributions popl %ecx // ret addr 36*f6217f89SApple OSS Distributions popl %eax // syscall number 37*f6217f89SApple OSS Distributions pushl %ecx 38*f6217f89SApple OSS Distributions UNIX_SYSCALL_TRAP 39*f6217f89SApple OSS Distributions movl (%esp),%edx // add one element to stack so 40*f6217f89SApple OSS Distributions pushl %ecx // caller "pop" will work 41*f6217f89SApple OSS Distributions jnb 2f 42*f6217f89SApple OSS Distributions BRANCH_EXTERN(tramp_cerror) 43*f6217f89SApple OSS Distributions2: 44*f6217f89SApple OSS DistributionsEND(___syscall) 45*f6217f89SApple OSS Distributions 46*f6217f89SApple OSS Distributions#elif defined(__x86_64__) 47*f6217f89SApple OSS Distributions 48*f6217f89SApple OSS Distributions// For x86-64, the kernel slides the argument list for us. 49*f6217f89SApple OSS Distributions// The number of arguments here is variable, but our macros ignore 50*f6217f89SApple OSS Distributions// that value anyway. 51*f6217f89SApple OSS Distributions__SYSCALL(___syscall, syscall, 0); 52*f6217f89SApple OSS Distributions 53*f6217f89SApple OSS Distributions#elif defined(__arm__) 54*f6217f89SApple OSS Distributions 55*f6217f89SApple OSS Distributions__SYSCALL(___syscall, syscall, 7) 56*f6217f89SApple OSS Distributions 57*f6217f89SApple OSS Distributions#elif defined(__arm64__) 58*f6217f89SApple OSS Distributions 59*f6217f89SApple OSS Distributions/* 60*f6217f89SApple OSS Distributions * Ignore nominal number of arguments: just pop from stack and let the kernel 61*f6217f89SApple OSS Distributions * interpret. 62*f6217f89SApple OSS Distributions */ 63*f6217f89SApple OSS Distributions#include <mach/arm64/asm.h> 64*f6217f89SApple OSS DistributionsMI_ENTRY_POINT(___syscall) 65*f6217f89SApple OSS Distributions ldp x1, x2, [sp] 66*f6217f89SApple OSS Distributions ldp x3, x4, [sp, #16] 67*f6217f89SApple OSS Distributions ldp x5, x6, [sp, #32] 68*f6217f89SApple OSS Distributions ldr x7, [sp, #48] 69*f6217f89SApple OSS Distributions DO_SYSCALL(SYS_syscall, cerror) 70*f6217f89SApple OSS Distributions ret 71*f6217f89SApple OSS Distributions#else 72*f6217f89SApple OSS Distributions#error Unsupported architecture 73*f6217f89SApple OSS Distributions#endif 74