1*94d3b452SApple OSS Distributions/* 2*94d3b452SApple OSS Distributions * Copyright (c) 1999-2015 Apple Inc. All rights reserved. 3*94d3b452SApple OSS Distributions * 4*94d3b452SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*94d3b452SApple OSS Distributions * 6*94d3b452SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*94d3b452SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*94d3b452SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*94d3b452SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*94d3b452SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*94d3b452SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*94d3b452SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*94d3b452SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*94d3b452SApple OSS Distributions * 15*94d3b452SApple OSS Distributions * Please obtain a copy of the License at 16*94d3b452SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*94d3b452SApple OSS Distributions * 18*94d3b452SApple OSS Distributions * The Original Code and all software distributed under the License are 19*94d3b452SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*94d3b452SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*94d3b452SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*94d3b452SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*94d3b452SApple OSS Distributions * Please see the License for the specific language governing rights and 24*94d3b452SApple OSS Distributions * limitations under the License. 25*94d3b452SApple OSS Distributions * 26*94d3b452SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*94d3b452SApple OSS Distributions */ 28*94d3b452SApple OSS Distributions/* Copyright (c) 1992 NeXT Computer, Inc. All rights reserved. 29*94d3b452SApple OSS Distributions */ 30*94d3b452SApple OSS Distributions 31*94d3b452SApple OSS Distributions#include "SYS.h" 32*94d3b452SApple OSS Distributions 33*94d3b452SApple OSS Distributions#if defined(__i386__) 34*94d3b452SApple OSS Distributions 35*94d3b452SApple OSS Distributions/* 36*94d3b452SApple OSS Distributions * i386 needs custom assembly to transform the return from syscalls 37*94d3b452SApple OSS Distributions * into a proper stack for a function call out to cerror{,_nocancel}. 38*94d3b452SApple OSS Distributions */ 39*94d3b452SApple OSS Distributions 40*94d3b452SApple OSS DistributionsLABEL(tramp_cerror) 41*94d3b452SApple OSS Distributions mov %esp, %edx 42*94d3b452SApple OSS Distributions andl $0xfffffff0, %esp 43*94d3b452SApple OSS Distributions subl $16, %esp 44*94d3b452SApple OSS Distributions movl %edx, 4(%esp) 45*94d3b452SApple OSS Distributions movl %eax, (%esp) 46*94d3b452SApple OSS Distributions CALL_EXTERN(_cerror) 47*94d3b452SApple OSS Distributions movl 4(%esp), %esp 48*94d3b452SApple OSS Distributions ret 49*94d3b452SApple OSS Distributions 50*94d3b452SApple OSS DistributionsLABEL(tramp_cerror_nocancel) 51*94d3b452SApple OSS Distributions mov %esp, %edx 52*94d3b452SApple OSS Distributions andl $0xfffffff0, %esp 53*94d3b452SApple OSS Distributions subl $16, %esp 54*94d3b452SApple OSS Distributions movl %edx, 4(%esp) 55*94d3b452SApple OSS Distributions movl %eax, (%esp) 56*94d3b452SApple OSS Distributions CALL_EXTERN(_cerror_nocancel) 57*94d3b452SApple OSS Distributions movl 4(%esp), %esp 58*94d3b452SApple OSS Distributions ret 59*94d3b452SApple OSS Distributions 60*94d3b452SApple OSS DistributionsLABEL(__sysenter_trap) 61*94d3b452SApple OSS Distributions popl %edx 62*94d3b452SApple OSS Distributions movl %esp, %ecx 63*94d3b452SApple OSS Distributions sysenter 64*94d3b452SApple OSS Distributions 65*94d3b452SApple OSS Distributions .globl _i386_get_ldt 66*94d3b452SApple OSS Distributions ALIGN 67*94d3b452SApple OSS Distributions_i386_get_ldt: 68*94d3b452SApple OSS Distributions movl $6,%eax 69*94d3b452SApple OSS Distributions MACHDEP_SYSCALL_TRAP 70*94d3b452SApple OSS Distributions jnb 2f 71*94d3b452SApple OSS Distributions jmp tramp_cerror 72*94d3b452SApple OSS Distributions2: ret 73*94d3b452SApple OSS Distributions 74*94d3b452SApple OSS Distributions 75*94d3b452SApple OSS Distributions .globl _i386_set_ldt 76*94d3b452SApple OSS Distributions ALIGN 77*94d3b452SApple OSS Distributions_i386_set_ldt: 78*94d3b452SApple OSS Distributions movl $5,%eax 79*94d3b452SApple OSS Distributions MACHDEP_SYSCALL_TRAP 80*94d3b452SApple OSS Distributions jnb 2f 81*94d3b452SApple OSS Distributions jmp tramp_cerror 82*94d3b452SApple OSS Distributions2: ret 83*94d3b452SApple OSS Distributions 84*94d3b452SApple OSS Distributions ALIGN 85*94d3b452SApple OSS Distributions .globl __thread_set_tsd_base 86*94d3b452SApple OSS Distributions__thread_set_tsd_base: 87*94d3b452SApple OSS Distributions pushl 4(%esp) 88*94d3b452SApple OSS Distributions pushl $0 89*94d3b452SApple OSS Distributions movl $3,%eax 90*94d3b452SApple OSS Distributions MACHDEP_SYSCALL_TRAP 91*94d3b452SApple OSS Distributions addl $8,%esp 92*94d3b452SApple OSS Distributions ret 93*94d3b452SApple OSS Distributions 94*94d3b452SApple OSS Distributions#elif defined(__x86_64__) 95*94d3b452SApple OSS Distributions 96*94d3b452SApple OSS Distributions .globl _i386_get_ldt 97*94d3b452SApple OSS Distributions ALIGN 98*94d3b452SApple OSS Distributions_i386_get_ldt: 99*94d3b452SApple OSS Distributions movl $SYSCALL_CONSTRUCT_MDEP(6), %eax 100*94d3b452SApple OSS Distributions MACHDEP_SYSCALL_TRAP 101*94d3b452SApple OSS Distributions jnb 2f 102*94d3b452SApple OSS Distributions movq %rax, %rdi 103*94d3b452SApple OSS Distributions jmp _cerror 104*94d3b452SApple OSS Distributions2: ret 105*94d3b452SApple OSS Distributions 106*94d3b452SApple OSS Distributions 107*94d3b452SApple OSS Distributions .globl _i386_set_ldt 108*94d3b452SApple OSS Distributions ALIGN 109*94d3b452SApple OSS Distributions_i386_set_ldt: 110*94d3b452SApple OSS Distributions movl $SYSCALL_CONSTRUCT_MDEP(5), %eax 111*94d3b452SApple OSS Distributions MACHDEP_SYSCALL_TRAP 112*94d3b452SApple OSS Distributions jnb 2f 113*94d3b452SApple OSS Distributions movq %rax, %rdi 114*94d3b452SApple OSS Distributions jmp _cerror 115*94d3b452SApple OSS Distributions2: ret 116*94d3b452SApple OSS Distributions 117*94d3b452SApple OSS Distributions ALIGN 118*94d3b452SApple OSS Distributions .globl __thread_set_tsd_base 119*94d3b452SApple OSS Distributions__thread_set_tsd_base: 120*94d3b452SApple OSS Distributions movl $0, %esi // 0 as the second argument 121*94d3b452SApple OSS Distributions movl $ SYSCALL_CONSTRUCT_MDEP(3), %eax // Machine-dependent syscall number 3 122*94d3b452SApple OSS Distributions MACHDEP_SYSCALL_TRAP 123*94d3b452SApple OSS Distributions ret 124*94d3b452SApple OSS Distributions 125*94d3b452SApple OSS Distributions#elif defined(__arm__) 126*94d3b452SApple OSS Distributions 127*94d3b452SApple OSS Distributions .align 2 128*94d3b452SApple OSS Distributions .globl __thread_set_tsd_base 129*94d3b452SApple OSS Distributions__thread_set_tsd_base: 130*94d3b452SApple OSS Distributions mov r3, #2 131*94d3b452SApple OSS Distributions mov r12, #0x80000000 132*94d3b452SApple OSS Distributions swi #SWI_SYSCALL 133*94d3b452SApple OSS Distributions bx lr 134*94d3b452SApple OSS Distributions 135*94d3b452SApple OSS Distributions#elif defined(__arm64__) 136*94d3b452SApple OSS Distributions 137*94d3b452SApple OSS Distributions .align 2 138*94d3b452SApple OSS Distributions .globl __thread_set_tsd_base 139*94d3b452SApple OSS Distributions__thread_set_tsd_base: 140*94d3b452SApple OSS Distributions mov x3, #2 141*94d3b452SApple OSS Distributions mov x16, #0x80000000 142*94d3b452SApple OSS Distributions svc #SWI_SYSCALL 143*94d3b452SApple OSS Distributions ret 144*94d3b452SApple OSS Distributions 145*94d3b452SApple OSS Distributions#else 146*94d3b452SApple OSS Distributions#error unknown architecture 147*94d3b452SApple OSS Distributions#endif 148*94d3b452SApple OSS Distributions 149*94d3b452SApple OSS Distributions.subsections_via_symbols 150