1*5e3eaea3SApple OSS Distributions/* 2*5e3eaea3SApple OSS Distributions * Copyright (c) 1999-2015 Apple Inc. All rights reserved. 3*5e3eaea3SApple OSS Distributions * 4*5e3eaea3SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*5e3eaea3SApple OSS Distributions * 6*5e3eaea3SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*5e3eaea3SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*5e3eaea3SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*5e3eaea3SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*5e3eaea3SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*5e3eaea3SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*5e3eaea3SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*5e3eaea3SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*5e3eaea3SApple OSS Distributions * 15*5e3eaea3SApple OSS Distributions * Please obtain a copy of the License at 16*5e3eaea3SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*5e3eaea3SApple OSS Distributions * 18*5e3eaea3SApple OSS Distributions * The Original Code and all software distributed under the License are 19*5e3eaea3SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*5e3eaea3SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*5e3eaea3SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*5e3eaea3SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*5e3eaea3SApple OSS Distributions * Please see the License for the specific language governing rights and 24*5e3eaea3SApple OSS Distributions * limitations under the License. 25*5e3eaea3SApple OSS Distributions * 26*5e3eaea3SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*5e3eaea3SApple OSS Distributions */ 28*5e3eaea3SApple OSS Distributions/* Copyright (c) 1992 NeXT Computer, Inc. All rights reserved. 29*5e3eaea3SApple OSS Distributions */ 30*5e3eaea3SApple OSS Distributions 31*5e3eaea3SApple OSS Distributions#include "SYS.h" 32*5e3eaea3SApple OSS Distributions 33*5e3eaea3SApple OSS Distributions#if defined(__i386__) 34*5e3eaea3SApple OSS Distributions 35*5e3eaea3SApple OSS Distributions/* 36*5e3eaea3SApple OSS Distributions * i386 needs custom assembly to transform the return from syscalls 37*5e3eaea3SApple OSS Distributions * into a proper stack for a function call out to cerror{,_nocancel}. 38*5e3eaea3SApple OSS Distributions */ 39*5e3eaea3SApple OSS Distributions 40*5e3eaea3SApple OSS DistributionsLABEL(tramp_cerror) 41*5e3eaea3SApple OSS Distributions mov %esp, %edx 42*5e3eaea3SApple OSS Distributions andl $0xfffffff0, %esp 43*5e3eaea3SApple OSS Distributions subl $16, %esp 44*5e3eaea3SApple OSS Distributions movl %edx, 4(%esp) 45*5e3eaea3SApple OSS Distributions movl %eax, (%esp) 46*5e3eaea3SApple OSS Distributions CALL_EXTERN(_cerror) 47*5e3eaea3SApple OSS Distributions movl 4(%esp), %esp 48*5e3eaea3SApple OSS Distributions ret 49*5e3eaea3SApple OSS Distributions 50*5e3eaea3SApple OSS DistributionsLABEL(tramp_cerror_nocancel) 51*5e3eaea3SApple OSS Distributions mov %esp, %edx 52*5e3eaea3SApple OSS Distributions andl $0xfffffff0, %esp 53*5e3eaea3SApple OSS Distributions subl $16, %esp 54*5e3eaea3SApple OSS Distributions movl %edx, 4(%esp) 55*5e3eaea3SApple OSS Distributions movl %eax, (%esp) 56*5e3eaea3SApple OSS Distributions CALL_EXTERN(_cerror_nocancel) 57*5e3eaea3SApple OSS Distributions movl 4(%esp), %esp 58*5e3eaea3SApple OSS Distributions ret 59*5e3eaea3SApple OSS Distributions 60*5e3eaea3SApple OSS DistributionsLABEL(__sysenter_trap) 61*5e3eaea3SApple OSS Distributions popl %edx 62*5e3eaea3SApple OSS Distributions movl %esp, %ecx 63*5e3eaea3SApple OSS Distributions sysenter 64*5e3eaea3SApple OSS Distributions 65*5e3eaea3SApple OSS Distributions .globl _i386_get_ldt 66*5e3eaea3SApple OSS Distributions ALIGN 67*5e3eaea3SApple OSS Distributions_i386_get_ldt: 68*5e3eaea3SApple OSS Distributions movl $6,%eax 69*5e3eaea3SApple OSS Distributions MACHDEP_SYSCALL_TRAP 70*5e3eaea3SApple OSS Distributions jnb 2f 71*5e3eaea3SApple OSS Distributions jmp tramp_cerror 72*5e3eaea3SApple OSS Distributions2: ret 73*5e3eaea3SApple OSS Distributions 74*5e3eaea3SApple OSS Distributions 75*5e3eaea3SApple OSS Distributions .globl _i386_set_ldt 76*5e3eaea3SApple OSS Distributions ALIGN 77*5e3eaea3SApple OSS Distributions_i386_set_ldt: 78*5e3eaea3SApple OSS Distributions movl $5,%eax 79*5e3eaea3SApple OSS Distributions MACHDEP_SYSCALL_TRAP 80*5e3eaea3SApple OSS Distributions jnb 2f 81*5e3eaea3SApple OSS Distributions jmp tramp_cerror 82*5e3eaea3SApple OSS Distributions2: ret 83*5e3eaea3SApple OSS Distributions 84*5e3eaea3SApple OSS Distributions ALIGN 85*5e3eaea3SApple OSS Distributions .globl __thread_set_tsd_base 86*5e3eaea3SApple OSS Distributions__thread_set_tsd_base: 87*5e3eaea3SApple OSS Distributions pushl 4(%esp) 88*5e3eaea3SApple OSS Distributions pushl $0 89*5e3eaea3SApple OSS Distributions movl $3,%eax 90*5e3eaea3SApple OSS Distributions MACHDEP_SYSCALL_TRAP 91*5e3eaea3SApple OSS Distributions addl $8,%esp 92*5e3eaea3SApple OSS Distributions ret 93*5e3eaea3SApple OSS Distributions 94*5e3eaea3SApple OSS Distributions#elif defined(__x86_64__) 95*5e3eaea3SApple OSS Distributions 96*5e3eaea3SApple OSS Distributions .globl _i386_get_ldt 97*5e3eaea3SApple OSS Distributions ALIGN 98*5e3eaea3SApple OSS Distributions_i386_get_ldt: 99*5e3eaea3SApple OSS Distributions movl $SYSCALL_CONSTRUCT_MDEP(6), %eax 100*5e3eaea3SApple OSS Distributions MACHDEP_SYSCALL_TRAP 101*5e3eaea3SApple OSS Distributions jnb 2f 102*5e3eaea3SApple OSS Distributions movq %rax, %rdi 103*5e3eaea3SApple OSS Distributions jmp _cerror 104*5e3eaea3SApple OSS Distributions2: ret 105*5e3eaea3SApple OSS Distributions 106*5e3eaea3SApple OSS Distributions 107*5e3eaea3SApple OSS Distributions .globl _i386_set_ldt 108*5e3eaea3SApple OSS Distributions ALIGN 109*5e3eaea3SApple OSS Distributions_i386_set_ldt: 110*5e3eaea3SApple OSS Distributions movl $SYSCALL_CONSTRUCT_MDEP(5), %eax 111*5e3eaea3SApple OSS Distributions MACHDEP_SYSCALL_TRAP 112*5e3eaea3SApple OSS Distributions jnb 2f 113*5e3eaea3SApple OSS Distributions movq %rax, %rdi 114*5e3eaea3SApple OSS Distributions jmp _cerror 115*5e3eaea3SApple OSS Distributions2: ret 116*5e3eaea3SApple OSS Distributions 117*5e3eaea3SApple OSS Distributions ALIGN 118*5e3eaea3SApple OSS Distributions .globl __thread_set_tsd_base 119*5e3eaea3SApple OSS Distributions__thread_set_tsd_base: 120*5e3eaea3SApple OSS Distributions movl $0, %esi // 0 as the second argument 121*5e3eaea3SApple OSS Distributions movl $ SYSCALL_CONSTRUCT_MDEP(3), %eax // Machine-dependent syscall number 3 122*5e3eaea3SApple OSS Distributions MACHDEP_SYSCALL_TRAP 123*5e3eaea3SApple OSS Distributions ret 124*5e3eaea3SApple OSS Distributions 125*5e3eaea3SApple OSS Distributions#elif defined(__arm__) 126*5e3eaea3SApple OSS Distributions 127*5e3eaea3SApple OSS Distributions .align 2 128*5e3eaea3SApple OSS Distributions .globl __thread_set_tsd_base 129*5e3eaea3SApple OSS Distributions__thread_set_tsd_base: 130*5e3eaea3SApple OSS Distributions mov r3, #2 131*5e3eaea3SApple OSS Distributions mov r12, #0x80000000 132*5e3eaea3SApple OSS Distributions swi #SWI_SYSCALL 133*5e3eaea3SApple OSS Distributions bx lr 134*5e3eaea3SApple OSS Distributions 135*5e3eaea3SApple OSS Distributions#elif defined(__arm64__) 136*5e3eaea3SApple OSS Distributions 137*5e3eaea3SApple OSS Distributions .align 2 138*5e3eaea3SApple OSS Distributions .globl __thread_set_tsd_base 139*5e3eaea3SApple OSS Distributions__thread_set_tsd_base: 140*5e3eaea3SApple OSS Distributions mov x3, #2 141*5e3eaea3SApple OSS Distributions mov x16, #0x80000000 142*5e3eaea3SApple OSS Distributions svc #SWI_SYSCALL 143*5e3eaea3SApple OSS Distributions ret 144*5e3eaea3SApple OSS Distributions 145*5e3eaea3SApple OSS Distributions#else 146*5e3eaea3SApple OSS Distributions#error unknown architecture 147*5e3eaea3SApple OSS Distributions#endif 148*5e3eaea3SApple OSS Distributions 149*5e3eaea3SApple OSS Distributions.subsections_via_symbols 150