1*27b03b36SApple OSS Distributions/* 2*27b03b36SApple OSS Distributions * Copyright (c) 1999-2015 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/* Copyright (c) 1992 NeXT Computer, Inc. All rights reserved. 29*27b03b36SApple OSS Distributions */ 30*27b03b36SApple OSS Distributions 31*27b03b36SApple OSS Distributions#include "SYS.h" 32*27b03b36SApple OSS Distributions 33*27b03b36SApple OSS Distributions#if defined(__i386__) 34*27b03b36SApple OSS Distributions 35*27b03b36SApple OSS Distributions/* 36*27b03b36SApple OSS Distributions * i386 needs custom assembly to transform the return from syscalls 37*27b03b36SApple OSS Distributions * into a proper stack for a function call out to cerror{,_nocancel}. 38*27b03b36SApple OSS Distributions */ 39*27b03b36SApple OSS Distributions 40*27b03b36SApple OSS DistributionsLABEL(tramp_cerror) 41*27b03b36SApple OSS Distributions mov %esp, %edx 42*27b03b36SApple OSS Distributions andl $0xfffffff0, %esp 43*27b03b36SApple OSS Distributions subl $16, %esp 44*27b03b36SApple OSS Distributions movl %edx, 4(%esp) 45*27b03b36SApple OSS Distributions movl %eax, (%esp) 46*27b03b36SApple OSS Distributions CALL_EXTERN(_cerror) 47*27b03b36SApple OSS Distributions movl 4(%esp), %esp 48*27b03b36SApple OSS Distributions ret 49*27b03b36SApple OSS Distributions 50*27b03b36SApple OSS DistributionsLABEL(tramp_cerror_nocancel) 51*27b03b36SApple OSS Distributions mov %esp, %edx 52*27b03b36SApple OSS Distributions andl $0xfffffff0, %esp 53*27b03b36SApple OSS Distributions subl $16, %esp 54*27b03b36SApple OSS Distributions movl %edx, 4(%esp) 55*27b03b36SApple OSS Distributions movl %eax, (%esp) 56*27b03b36SApple OSS Distributions CALL_EXTERN(_cerror_nocancel) 57*27b03b36SApple OSS Distributions movl 4(%esp), %esp 58*27b03b36SApple OSS Distributions ret 59*27b03b36SApple OSS Distributions 60*27b03b36SApple OSS DistributionsLABEL(__sysenter_trap) 61*27b03b36SApple OSS Distributions popl %edx 62*27b03b36SApple OSS Distributions movl %esp, %ecx 63*27b03b36SApple OSS Distributions sysenter 64*27b03b36SApple OSS Distributions 65*27b03b36SApple OSS Distributions .globl _i386_get_ldt 66*27b03b36SApple OSS Distributions ALIGN 67*27b03b36SApple OSS Distributions_i386_get_ldt: 68*27b03b36SApple OSS Distributions movl $6,%eax 69*27b03b36SApple OSS Distributions MACHDEP_SYSCALL_TRAP 70*27b03b36SApple OSS Distributions jnb 2f 71*27b03b36SApple OSS Distributions jmp tramp_cerror 72*27b03b36SApple OSS Distributions2: ret 73*27b03b36SApple OSS Distributions 74*27b03b36SApple OSS Distributions 75*27b03b36SApple OSS Distributions .globl _i386_set_ldt 76*27b03b36SApple OSS Distributions ALIGN 77*27b03b36SApple OSS Distributions_i386_set_ldt: 78*27b03b36SApple OSS Distributions movl $5,%eax 79*27b03b36SApple OSS Distributions MACHDEP_SYSCALL_TRAP 80*27b03b36SApple OSS Distributions jnb 2f 81*27b03b36SApple OSS Distributions jmp tramp_cerror 82*27b03b36SApple OSS Distributions2: ret 83*27b03b36SApple OSS Distributions 84*27b03b36SApple OSS Distributions ALIGN 85*27b03b36SApple OSS Distributions .globl __thread_set_tsd_base 86*27b03b36SApple OSS Distributions__thread_set_tsd_base: 87*27b03b36SApple OSS Distributions pushl 4(%esp) 88*27b03b36SApple OSS Distributions pushl $0 89*27b03b36SApple OSS Distributions movl $3,%eax 90*27b03b36SApple OSS Distributions MACHDEP_SYSCALL_TRAP 91*27b03b36SApple OSS Distributions addl $8,%esp 92*27b03b36SApple OSS Distributions ret 93*27b03b36SApple OSS Distributions 94*27b03b36SApple OSS Distributions#elif defined(__x86_64__) 95*27b03b36SApple OSS Distributions 96*27b03b36SApple OSS Distributions .globl _i386_get_ldt 97*27b03b36SApple OSS Distributions ALIGN 98*27b03b36SApple OSS Distributions_i386_get_ldt: 99*27b03b36SApple OSS Distributions movl $SYSCALL_CONSTRUCT_MDEP(6), %eax 100*27b03b36SApple OSS Distributions MACHDEP_SYSCALL_TRAP 101*27b03b36SApple OSS Distributions jnb 2f 102*27b03b36SApple OSS Distributions movq %rax, %rdi 103*27b03b36SApple OSS Distributions jmp _cerror 104*27b03b36SApple OSS Distributions2: ret 105*27b03b36SApple OSS Distributions 106*27b03b36SApple OSS Distributions 107*27b03b36SApple OSS Distributions .globl _i386_set_ldt 108*27b03b36SApple OSS Distributions ALIGN 109*27b03b36SApple OSS Distributions_i386_set_ldt: 110*27b03b36SApple OSS Distributions movl $SYSCALL_CONSTRUCT_MDEP(5), %eax 111*27b03b36SApple OSS Distributions MACHDEP_SYSCALL_TRAP 112*27b03b36SApple OSS Distributions jnb 2f 113*27b03b36SApple OSS Distributions movq %rax, %rdi 114*27b03b36SApple OSS Distributions jmp _cerror 115*27b03b36SApple OSS Distributions2: ret 116*27b03b36SApple OSS Distributions 117*27b03b36SApple OSS Distributions ALIGN 118*27b03b36SApple OSS Distributions .globl __thread_set_tsd_base 119*27b03b36SApple OSS Distributions__thread_set_tsd_base: 120*27b03b36SApple OSS Distributions movl $0, %esi // 0 as the second argument 121*27b03b36SApple OSS Distributions movl $ SYSCALL_CONSTRUCT_MDEP(3), %eax // Machine-dependent syscall number 3 122*27b03b36SApple OSS Distributions MACHDEP_SYSCALL_TRAP 123*27b03b36SApple OSS Distributions ret 124*27b03b36SApple OSS Distributions 125*27b03b36SApple OSS Distributions#elif defined(__arm__) 126*27b03b36SApple OSS Distributions 127*27b03b36SApple OSS Distributions .align 2 128*27b03b36SApple OSS Distributions .globl __thread_set_tsd_base 129*27b03b36SApple OSS Distributions__thread_set_tsd_base: 130*27b03b36SApple OSS Distributions mov r3, #2 131*27b03b36SApple OSS Distributions mov r12, #0x80000000 132*27b03b36SApple OSS Distributions swi #SWI_SYSCALL 133*27b03b36SApple OSS Distributions bx lr 134*27b03b36SApple OSS Distributions 135*27b03b36SApple OSS Distributions#elif defined(__arm64__) 136*27b03b36SApple OSS Distributions 137*27b03b36SApple OSS Distributions .align 2 138*27b03b36SApple OSS Distributions .globl __thread_set_tsd_base 139*27b03b36SApple OSS Distributions__thread_set_tsd_base: 140*27b03b36SApple OSS Distributions mov x3, #2 141*27b03b36SApple OSS Distributions mov x16, #0x80000000 142*27b03b36SApple OSS Distributions svc #SWI_SYSCALL 143*27b03b36SApple OSS Distributions ret 144*27b03b36SApple OSS Distributions 145*27b03b36SApple OSS Distributions#else 146*27b03b36SApple OSS Distributions#error unknown architecture 147*27b03b36SApple OSS Distributions#endif 148*27b03b36SApple OSS Distributions 149*27b03b36SApple OSS Distributions.subsections_via_symbols 150