1*043036a2SApple OSS Distributions/* 2*043036a2SApple OSS Distributions * Copyright (c) 1999-2015 Apple Inc. All rights reserved. 3*043036a2SApple OSS Distributions * 4*043036a2SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*043036a2SApple OSS Distributions * 6*043036a2SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*043036a2SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*043036a2SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*043036a2SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*043036a2SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*043036a2SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*043036a2SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*043036a2SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*043036a2SApple OSS Distributions * 15*043036a2SApple OSS Distributions * Please obtain a copy of the License at 16*043036a2SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*043036a2SApple OSS Distributions * 18*043036a2SApple OSS Distributions * The Original Code and all software distributed under the License are 19*043036a2SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*043036a2SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*043036a2SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*043036a2SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*043036a2SApple OSS Distributions * Please see the License for the specific language governing rights and 24*043036a2SApple OSS Distributions * limitations under the License. 25*043036a2SApple OSS Distributions * 26*043036a2SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*043036a2SApple OSS Distributions */ 28*043036a2SApple OSS Distributions/* Copyright (c) 1992 NeXT Computer, Inc. All rights reserved. 29*043036a2SApple OSS Distributions */ 30*043036a2SApple OSS Distributions 31*043036a2SApple OSS Distributions#include "SYS.h" 32*043036a2SApple OSS Distributions 33*043036a2SApple OSS Distributions#if defined(__i386__) 34*043036a2SApple OSS Distributions 35*043036a2SApple OSS Distributions/* 36*043036a2SApple OSS Distributions * i386 needs custom assembly to transform the return from syscalls 37*043036a2SApple OSS Distributions * into a proper stack for a function call out to cerror{,_nocancel}. 38*043036a2SApple OSS Distributions */ 39*043036a2SApple OSS Distributions 40*043036a2SApple OSS DistributionsLABEL(tramp_cerror) 41*043036a2SApple OSS Distributions mov %esp, %edx 42*043036a2SApple OSS Distributions andl $0xfffffff0, %esp 43*043036a2SApple OSS Distributions subl $16, %esp 44*043036a2SApple OSS Distributions movl %edx, 4(%esp) 45*043036a2SApple OSS Distributions movl %eax, (%esp) 46*043036a2SApple OSS Distributions CALL_EXTERN(_cerror) 47*043036a2SApple OSS Distributions movl 4(%esp), %esp 48*043036a2SApple OSS Distributions ret 49*043036a2SApple OSS Distributions 50*043036a2SApple OSS DistributionsLABEL(tramp_cerror_nocancel) 51*043036a2SApple OSS Distributions mov %esp, %edx 52*043036a2SApple OSS Distributions andl $0xfffffff0, %esp 53*043036a2SApple OSS Distributions subl $16, %esp 54*043036a2SApple OSS Distributions movl %edx, 4(%esp) 55*043036a2SApple OSS Distributions movl %eax, (%esp) 56*043036a2SApple OSS Distributions CALL_EXTERN(_cerror_nocancel) 57*043036a2SApple OSS Distributions movl 4(%esp), %esp 58*043036a2SApple OSS Distributions ret 59*043036a2SApple OSS Distributions 60*043036a2SApple OSS DistributionsLABEL(__sysenter_trap) 61*043036a2SApple OSS Distributions popl %edx 62*043036a2SApple OSS Distributions movl %esp, %ecx 63*043036a2SApple OSS Distributions sysenter 64*043036a2SApple OSS Distributions 65*043036a2SApple OSS Distributions .globl _i386_get_ldt 66*043036a2SApple OSS Distributions ALIGN 67*043036a2SApple OSS Distributions_i386_get_ldt: 68*043036a2SApple OSS Distributions movl $6,%eax 69*043036a2SApple OSS Distributions MACHDEP_SYSCALL_TRAP 70*043036a2SApple OSS Distributions jnb 2f 71*043036a2SApple OSS Distributions jmp tramp_cerror 72*043036a2SApple OSS Distributions2: ret 73*043036a2SApple OSS Distributions 74*043036a2SApple OSS Distributions 75*043036a2SApple OSS Distributions .globl _i386_set_ldt 76*043036a2SApple OSS Distributions ALIGN 77*043036a2SApple OSS Distributions_i386_set_ldt: 78*043036a2SApple OSS Distributions movl $5,%eax 79*043036a2SApple OSS Distributions MACHDEP_SYSCALL_TRAP 80*043036a2SApple OSS Distributions jnb 2f 81*043036a2SApple OSS Distributions jmp tramp_cerror 82*043036a2SApple OSS Distributions2: ret 83*043036a2SApple OSS Distributions 84*043036a2SApple OSS Distributions ALIGN 85*043036a2SApple OSS Distributions .globl __thread_set_tsd_base 86*043036a2SApple OSS Distributions__thread_set_tsd_base: 87*043036a2SApple OSS Distributions pushl 4(%esp) 88*043036a2SApple OSS Distributions pushl $0 89*043036a2SApple OSS Distributions movl $3,%eax 90*043036a2SApple OSS Distributions MACHDEP_SYSCALL_TRAP 91*043036a2SApple OSS Distributions addl $8,%esp 92*043036a2SApple OSS Distributions ret 93*043036a2SApple OSS Distributions 94*043036a2SApple OSS Distributions#elif defined(__x86_64__) 95*043036a2SApple OSS Distributions 96*043036a2SApple OSS Distributions .globl _i386_get_ldt 97*043036a2SApple OSS Distributions ALIGN 98*043036a2SApple OSS Distributions_i386_get_ldt: 99*043036a2SApple OSS Distributions movl $SYSCALL_CONSTRUCT_MDEP(6), %eax 100*043036a2SApple OSS Distributions MACHDEP_SYSCALL_TRAP 101*043036a2SApple OSS Distributions jnb 2f 102*043036a2SApple OSS Distributions movq %rax, %rdi 103*043036a2SApple OSS Distributions jmp _cerror 104*043036a2SApple OSS Distributions2: ret 105*043036a2SApple OSS Distributions 106*043036a2SApple OSS Distributions 107*043036a2SApple OSS Distributions .globl _i386_set_ldt 108*043036a2SApple OSS Distributions ALIGN 109*043036a2SApple OSS Distributions_i386_set_ldt: 110*043036a2SApple OSS Distributions movl $SYSCALL_CONSTRUCT_MDEP(5), %eax 111*043036a2SApple OSS Distributions MACHDEP_SYSCALL_TRAP 112*043036a2SApple OSS Distributions jnb 2f 113*043036a2SApple OSS Distributions movq %rax, %rdi 114*043036a2SApple OSS Distributions jmp _cerror 115*043036a2SApple OSS Distributions2: ret 116*043036a2SApple OSS Distributions 117*043036a2SApple OSS Distributions ALIGN 118*043036a2SApple OSS Distributions .globl __thread_set_tsd_base 119*043036a2SApple OSS Distributions__thread_set_tsd_base: 120*043036a2SApple OSS Distributions movl $0, %esi // 0 as the second argument 121*043036a2SApple OSS Distributions movl $ SYSCALL_CONSTRUCT_MDEP(3), %eax // Machine-dependent syscall number 3 122*043036a2SApple OSS Distributions MACHDEP_SYSCALL_TRAP 123*043036a2SApple OSS Distributions ret 124*043036a2SApple OSS Distributions 125*043036a2SApple OSS Distributions#elif defined(__arm__) 126*043036a2SApple OSS Distributions 127*043036a2SApple OSS Distributions .align 2 128*043036a2SApple OSS Distributions .globl __thread_set_tsd_base 129*043036a2SApple OSS Distributions__thread_set_tsd_base: 130*043036a2SApple OSS Distributions mov r3, #2 131*043036a2SApple OSS Distributions mov r12, #0x80000000 132*043036a2SApple OSS Distributions swi #SWI_SYSCALL 133*043036a2SApple OSS Distributions bx lr 134*043036a2SApple OSS Distributions 135*043036a2SApple OSS Distributions#elif defined(__arm64__) 136*043036a2SApple OSS Distributions 137*043036a2SApple OSS Distributions .align 2 138*043036a2SApple OSS Distributions .globl __thread_set_tsd_base 139*043036a2SApple OSS Distributions__thread_set_tsd_base: 140*043036a2SApple OSS Distributions mov x3, #2 141*043036a2SApple OSS Distributions mov x16, #0x80000000 142*043036a2SApple OSS Distributions svc #SWI_SYSCALL 143*043036a2SApple OSS Distributions ret 144*043036a2SApple OSS Distributions 145*043036a2SApple OSS Distributions#else 146*043036a2SApple OSS Distributions#error unknown architecture 147*043036a2SApple OSS Distributions#endif 148*043036a2SApple OSS Distributions 149*043036a2SApple OSS Distributions.subsections_via_symbols 150