1*e7776783SApple OSS Distributions/* 2*e7776783SApple OSS Distributions * Copyright (c) 1999-2015 Apple Inc. All rights reserved. 3*e7776783SApple OSS Distributions * 4*e7776783SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*e7776783SApple OSS Distributions * 6*e7776783SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*e7776783SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*e7776783SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*e7776783SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*e7776783SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*e7776783SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*e7776783SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*e7776783SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*e7776783SApple OSS Distributions * 15*e7776783SApple OSS Distributions * Please obtain a copy of the License at 16*e7776783SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*e7776783SApple OSS Distributions * 18*e7776783SApple OSS Distributions * The Original Code and all software distributed under the License are 19*e7776783SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*e7776783SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*e7776783SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*e7776783SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*e7776783SApple OSS Distributions * Please see the License for the specific language governing rights and 24*e7776783SApple OSS Distributions * limitations under the License. 25*e7776783SApple OSS Distributions * 26*e7776783SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*e7776783SApple OSS Distributions */ 28*e7776783SApple OSS Distributions/* Copyright (c) 1992 NeXT Computer, Inc. All rights reserved. 29*e7776783SApple OSS Distributions */ 30*e7776783SApple OSS Distributions 31*e7776783SApple OSS Distributions#include "SYS.h" 32*e7776783SApple OSS Distributions 33*e7776783SApple OSS Distributions#if defined(__i386__) 34*e7776783SApple OSS Distributions 35*e7776783SApple OSS Distributions/* 36*e7776783SApple OSS Distributions * i386 needs custom assembly to transform the return from syscalls 37*e7776783SApple OSS Distributions * into a proper stack for a function call out to cerror{,_nocancel}. 38*e7776783SApple OSS Distributions */ 39*e7776783SApple OSS Distributions 40*e7776783SApple OSS DistributionsLABEL(tramp_cerror) 41*e7776783SApple OSS Distributions mov %esp, %edx 42*e7776783SApple OSS Distributions andl $0xfffffff0, %esp 43*e7776783SApple OSS Distributions subl $16, %esp 44*e7776783SApple OSS Distributions movl %edx, 4(%esp) 45*e7776783SApple OSS Distributions movl %eax, (%esp) 46*e7776783SApple OSS Distributions CALL_EXTERN(_cerror) 47*e7776783SApple OSS Distributions movl 4(%esp), %esp 48*e7776783SApple OSS Distributions ret 49*e7776783SApple OSS Distributions 50*e7776783SApple OSS DistributionsLABEL(tramp_cerror_nocancel) 51*e7776783SApple OSS Distributions mov %esp, %edx 52*e7776783SApple OSS Distributions andl $0xfffffff0, %esp 53*e7776783SApple OSS Distributions subl $16, %esp 54*e7776783SApple OSS Distributions movl %edx, 4(%esp) 55*e7776783SApple OSS Distributions movl %eax, (%esp) 56*e7776783SApple OSS Distributions CALL_EXTERN(_cerror_nocancel) 57*e7776783SApple OSS Distributions movl 4(%esp), %esp 58*e7776783SApple OSS Distributions ret 59*e7776783SApple OSS Distributions 60*e7776783SApple OSS DistributionsLABEL(__sysenter_trap) 61*e7776783SApple OSS Distributions popl %edx 62*e7776783SApple OSS Distributions movl %esp, %ecx 63*e7776783SApple OSS Distributions sysenter 64*e7776783SApple OSS Distributions 65*e7776783SApple OSS Distributions .globl _i386_get_ldt 66*e7776783SApple OSS Distributions ALIGN 67*e7776783SApple OSS Distributions_i386_get_ldt: 68*e7776783SApple OSS Distributions movl $6,%eax 69*e7776783SApple OSS Distributions MACHDEP_SYSCALL_TRAP 70*e7776783SApple OSS Distributions jnb 2f 71*e7776783SApple OSS Distributions jmp tramp_cerror 72*e7776783SApple OSS Distributions2: ret 73*e7776783SApple OSS Distributions 74*e7776783SApple OSS Distributions 75*e7776783SApple OSS Distributions .globl _i386_set_ldt 76*e7776783SApple OSS Distributions ALIGN 77*e7776783SApple OSS Distributions_i386_set_ldt: 78*e7776783SApple OSS Distributions movl $5,%eax 79*e7776783SApple OSS Distributions MACHDEP_SYSCALL_TRAP 80*e7776783SApple OSS Distributions jnb 2f 81*e7776783SApple OSS Distributions jmp tramp_cerror 82*e7776783SApple OSS Distributions2: ret 83*e7776783SApple OSS Distributions 84*e7776783SApple OSS Distributions ALIGN 85*e7776783SApple OSS Distributions .globl __thread_set_tsd_base 86*e7776783SApple OSS Distributions__thread_set_tsd_base: 87*e7776783SApple OSS Distributions pushl 4(%esp) 88*e7776783SApple OSS Distributions pushl $0 89*e7776783SApple OSS Distributions movl $3,%eax 90*e7776783SApple OSS Distributions MACHDEP_SYSCALL_TRAP 91*e7776783SApple OSS Distributions addl $8,%esp 92*e7776783SApple OSS Distributions ret 93*e7776783SApple OSS Distributions 94*e7776783SApple OSS Distributions#elif defined(__x86_64__) 95*e7776783SApple OSS Distributions 96*e7776783SApple OSS Distributions .globl _i386_get_ldt 97*e7776783SApple OSS Distributions ALIGN 98*e7776783SApple OSS Distributions_i386_get_ldt: 99*e7776783SApple OSS Distributions movl $SYSCALL_CONSTRUCT_MDEP(6), %eax 100*e7776783SApple OSS Distributions MACHDEP_SYSCALL_TRAP 101*e7776783SApple OSS Distributions jnb 2f 102*e7776783SApple OSS Distributions movq %rax, %rdi 103*e7776783SApple OSS Distributions jmp _cerror 104*e7776783SApple OSS Distributions2: ret 105*e7776783SApple OSS Distributions 106*e7776783SApple OSS Distributions 107*e7776783SApple OSS Distributions .globl _i386_set_ldt 108*e7776783SApple OSS Distributions ALIGN 109*e7776783SApple OSS Distributions_i386_set_ldt: 110*e7776783SApple OSS Distributions movl $SYSCALL_CONSTRUCT_MDEP(5), %eax 111*e7776783SApple OSS Distributions MACHDEP_SYSCALL_TRAP 112*e7776783SApple OSS Distributions jnb 2f 113*e7776783SApple OSS Distributions movq %rax, %rdi 114*e7776783SApple OSS Distributions jmp _cerror 115*e7776783SApple OSS Distributions2: ret 116*e7776783SApple OSS Distributions 117*e7776783SApple OSS Distributions ALIGN 118*e7776783SApple OSS Distributions .globl __thread_set_tsd_base 119*e7776783SApple OSS Distributions__thread_set_tsd_base: 120*e7776783SApple OSS Distributions movl $0, %esi // 0 as the second argument 121*e7776783SApple OSS Distributions movl $ SYSCALL_CONSTRUCT_MDEP(3), %eax // Machine-dependent syscall number 3 122*e7776783SApple OSS Distributions MACHDEP_SYSCALL_TRAP 123*e7776783SApple OSS Distributions ret 124*e7776783SApple OSS Distributions 125*e7776783SApple OSS Distributions#elif defined(__arm__) 126*e7776783SApple OSS Distributions 127*e7776783SApple OSS Distributions .align 2 128*e7776783SApple OSS Distributions .globl __thread_set_tsd_base 129*e7776783SApple OSS Distributions__thread_set_tsd_base: 130*e7776783SApple OSS Distributions mov r3, #2 131*e7776783SApple OSS Distributions mov r12, #0x80000000 132*e7776783SApple OSS Distributions swi #SWI_SYSCALL 133*e7776783SApple OSS Distributions bx lr 134*e7776783SApple OSS Distributions 135*e7776783SApple OSS Distributions#elif defined(__arm64__) 136*e7776783SApple OSS Distributions 137*e7776783SApple OSS Distributions .align 2 138*e7776783SApple OSS Distributions .globl __thread_set_tsd_base 139*e7776783SApple OSS Distributions__thread_set_tsd_base: 140*e7776783SApple OSS Distributions mov x3, #2 141*e7776783SApple OSS Distributions mov x16, #0x80000000 142*e7776783SApple OSS Distributions svc #SWI_SYSCALL 143*e7776783SApple OSS Distributions ret 144*e7776783SApple OSS Distributions 145*e7776783SApple OSS Distributions#else 146*e7776783SApple OSS Distributions#error unknown architecture 147*e7776783SApple OSS Distributions#endif 148*e7776783SApple OSS Distributions 149*e7776783SApple OSS Distributions.subsections_via_symbols 150