1*8d741a5dSApple OSS Distributions/* 2*8d741a5dSApple OSS Distributions * Copyright (c) 1999-2015 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 31*8d741a5dSApple OSS Distributions#include "SYS.h" 32*8d741a5dSApple OSS Distributions 33*8d741a5dSApple OSS Distributions#if defined(__i386__) 34*8d741a5dSApple OSS Distributions 35*8d741a5dSApple OSS Distributions/* 36*8d741a5dSApple OSS Distributions * i386 needs custom assembly to transform the return from syscalls 37*8d741a5dSApple OSS Distributions * into a proper stack for a function call out to cerror{,_nocancel}. 38*8d741a5dSApple OSS Distributions */ 39*8d741a5dSApple OSS Distributions 40*8d741a5dSApple OSS DistributionsLABEL(tramp_cerror) 41*8d741a5dSApple OSS Distributions mov %esp, %edx 42*8d741a5dSApple OSS Distributions andl $0xfffffff0, %esp 43*8d741a5dSApple OSS Distributions subl $16, %esp 44*8d741a5dSApple OSS Distributions movl %edx, 4(%esp) 45*8d741a5dSApple OSS Distributions movl %eax, (%esp) 46*8d741a5dSApple OSS Distributions CALL_EXTERN(_cerror) 47*8d741a5dSApple OSS Distributions movl 4(%esp), %esp 48*8d741a5dSApple OSS Distributions ret 49*8d741a5dSApple OSS Distributions 50*8d741a5dSApple OSS DistributionsLABEL(tramp_cerror_nocancel) 51*8d741a5dSApple OSS Distributions mov %esp, %edx 52*8d741a5dSApple OSS Distributions andl $0xfffffff0, %esp 53*8d741a5dSApple OSS Distributions subl $16, %esp 54*8d741a5dSApple OSS Distributions movl %edx, 4(%esp) 55*8d741a5dSApple OSS Distributions movl %eax, (%esp) 56*8d741a5dSApple OSS Distributions CALL_EXTERN(_cerror_nocancel) 57*8d741a5dSApple OSS Distributions movl 4(%esp), %esp 58*8d741a5dSApple OSS Distributions ret 59*8d741a5dSApple OSS Distributions 60*8d741a5dSApple OSS DistributionsLABEL(__sysenter_trap) 61*8d741a5dSApple OSS Distributions popl %edx 62*8d741a5dSApple OSS Distributions movl %esp, %ecx 63*8d741a5dSApple OSS Distributions sysenter 64*8d741a5dSApple OSS Distributions 65*8d741a5dSApple OSS Distributions .globl _i386_get_ldt 66*8d741a5dSApple OSS Distributions ALIGN 67*8d741a5dSApple OSS Distributions_i386_get_ldt: 68*8d741a5dSApple OSS Distributions movl $6,%eax 69*8d741a5dSApple OSS Distributions MACHDEP_SYSCALL_TRAP 70*8d741a5dSApple OSS Distributions jnb 2f 71*8d741a5dSApple OSS Distributions jmp tramp_cerror 72*8d741a5dSApple OSS Distributions2: ret 73*8d741a5dSApple OSS Distributions 74*8d741a5dSApple OSS Distributions 75*8d741a5dSApple OSS Distributions .globl _i386_set_ldt 76*8d741a5dSApple OSS Distributions ALIGN 77*8d741a5dSApple OSS Distributions_i386_set_ldt: 78*8d741a5dSApple OSS Distributions movl $5,%eax 79*8d741a5dSApple OSS Distributions MACHDEP_SYSCALL_TRAP 80*8d741a5dSApple OSS Distributions jnb 2f 81*8d741a5dSApple OSS Distributions jmp tramp_cerror 82*8d741a5dSApple OSS Distributions2: ret 83*8d741a5dSApple OSS Distributions 84*8d741a5dSApple OSS Distributions ALIGN 85*8d741a5dSApple OSS Distributions .globl __thread_set_tsd_base 86*8d741a5dSApple OSS Distributions__thread_set_tsd_base: 87*8d741a5dSApple OSS Distributions pushl 4(%esp) 88*8d741a5dSApple OSS Distributions pushl $0 89*8d741a5dSApple OSS Distributions movl $3,%eax 90*8d741a5dSApple OSS Distributions MACHDEP_SYSCALL_TRAP 91*8d741a5dSApple OSS Distributions addl $8,%esp 92*8d741a5dSApple OSS Distributions ret 93*8d741a5dSApple OSS Distributions 94*8d741a5dSApple OSS Distributions#elif defined(__x86_64__) 95*8d741a5dSApple OSS Distributions 96*8d741a5dSApple OSS Distributions .globl _i386_get_ldt 97*8d741a5dSApple OSS Distributions ALIGN 98*8d741a5dSApple OSS Distributions_i386_get_ldt: 99*8d741a5dSApple OSS Distributions movl $SYSCALL_CONSTRUCT_MDEP(6), %eax 100*8d741a5dSApple OSS Distributions MACHDEP_SYSCALL_TRAP 101*8d741a5dSApple OSS Distributions jnb 2f 102*8d741a5dSApple OSS Distributions movq %rax, %rdi 103*8d741a5dSApple OSS Distributions jmp _cerror 104*8d741a5dSApple OSS Distributions2: ret 105*8d741a5dSApple OSS Distributions 106*8d741a5dSApple OSS Distributions 107*8d741a5dSApple OSS Distributions .globl _i386_set_ldt 108*8d741a5dSApple OSS Distributions ALIGN 109*8d741a5dSApple OSS Distributions_i386_set_ldt: 110*8d741a5dSApple OSS Distributions movl $SYSCALL_CONSTRUCT_MDEP(5), %eax 111*8d741a5dSApple OSS Distributions MACHDEP_SYSCALL_TRAP 112*8d741a5dSApple OSS Distributions jnb 2f 113*8d741a5dSApple OSS Distributions movq %rax, %rdi 114*8d741a5dSApple OSS Distributions jmp _cerror 115*8d741a5dSApple OSS Distributions2: ret 116*8d741a5dSApple OSS Distributions 117*8d741a5dSApple OSS Distributions ALIGN 118*8d741a5dSApple OSS Distributions .globl __thread_set_tsd_base 119*8d741a5dSApple OSS Distributions__thread_set_tsd_base: 120*8d741a5dSApple OSS Distributions movl $0, %esi // 0 as the second argument 121*8d741a5dSApple OSS Distributions movl $ SYSCALL_CONSTRUCT_MDEP(3), %eax // Machine-dependent syscall number 3 122*8d741a5dSApple OSS Distributions MACHDEP_SYSCALL_TRAP 123*8d741a5dSApple OSS Distributions ret 124*8d741a5dSApple OSS Distributions 125*8d741a5dSApple OSS Distributions#elif defined(__arm__) 126*8d741a5dSApple OSS Distributions 127*8d741a5dSApple OSS Distributions .align 2 128*8d741a5dSApple OSS Distributions .globl __thread_set_tsd_base 129*8d741a5dSApple OSS Distributions__thread_set_tsd_base: 130*8d741a5dSApple OSS Distributions mov r3, #2 131*8d741a5dSApple OSS Distributions mov r12, #0x80000000 132*8d741a5dSApple OSS Distributions swi #SWI_SYSCALL 133*8d741a5dSApple OSS Distributions bx lr 134*8d741a5dSApple OSS Distributions 135*8d741a5dSApple OSS Distributions#elif defined(__arm64__) 136*8d741a5dSApple OSS Distributions 137*8d741a5dSApple OSS Distributions .align 2 138*8d741a5dSApple OSS Distributions .globl __thread_set_tsd_base 139*8d741a5dSApple OSS Distributions__thread_set_tsd_base: 140*8d741a5dSApple OSS Distributions mov x3, #2 141*8d741a5dSApple OSS Distributions mov x16, #0x80000000 142*8d741a5dSApple OSS Distributions svc #SWI_SYSCALL 143*8d741a5dSApple OSS Distributions ret 144*8d741a5dSApple OSS Distributions 145*8d741a5dSApple OSS Distributions#else 146*8d741a5dSApple OSS Distributions#error unknown architecture 147*8d741a5dSApple OSS Distributions#endif 148*8d741a5dSApple OSS Distributions 149*8d741a5dSApple OSS Distributions.subsections_via_symbols 150