1*f6217f89SApple OSS Distributions/* 2*f6217f89SApple OSS Distributions * Copyright (c) 1999-2015 Apple Inc. All rights reserved. 3*f6217f89SApple OSS Distributions * 4*f6217f89SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*f6217f89SApple OSS Distributions * 6*f6217f89SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*f6217f89SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*f6217f89SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*f6217f89SApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*f6217f89SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*f6217f89SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*f6217f89SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*f6217f89SApple OSS Distributions * terms of an Apple operating system software license agreement. 14*f6217f89SApple OSS Distributions * 15*f6217f89SApple OSS Distributions * Please obtain a copy of the License at 16*f6217f89SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*f6217f89SApple OSS Distributions * 18*f6217f89SApple OSS Distributions * The Original Code and all software distributed under the License are 19*f6217f89SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*f6217f89SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*f6217f89SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*f6217f89SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*f6217f89SApple OSS Distributions * Please see the License for the specific language governing rights and 24*f6217f89SApple OSS Distributions * limitations under the License. 25*f6217f89SApple OSS Distributions * 26*f6217f89SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*f6217f89SApple OSS Distributions */ 28*f6217f89SApple OSS Distributions/* Copyright (c) 1992 NeXT Computer, Inc. All rights reserved. 29*f6217f89SApple OSS Distributions */ 30*f6217f89SApple OSS Distributions 31*f6217f89SApple OSS Distributions#include "SYS.h" 32*f6217f89SApple OSS Distributions 33*f6217f89SApple OSS Distributions#if defined(__i386__) 34*f6217f89SApple OSS Distributions 35*f6217f89SApple OSS Distributions/* 36*f6217f89SApple OSS Distributions * i386 needs custom assembly to transform the return from syscalls 37*f6217f89SApple OSS Distributions * into a proper stack for a function call out to cerror{,_nocancel}. 38*f6217f89SApple OSS Distributions */ 39*f6217f89SApple OSS Distributions 40*f6217f89SApple OSS DistributionsLABEL(tramp_cerror) 41*f6217f89SApple OSS Distributions mov %esp, %edx 42*f6217f89SApple OSS Distributions andl $0xfffffff0, %esp 43*f6217f89SApple OSS Distributions subl $16, %esp 44*f6217f89SApple OSS Distributions movl %edx, 4(%esp) 45*f6217f89SApple OSS Distributions movl %eax, (%esp) 46*f6217f89SApple OSS Distributions CALL_EXTERN(_cerror) 47*f6217f89SApple OSS Distributions movl 4(%esp), %esp 48*f6217f89SApple OSS Distributions ret 49*f6217f89SApple OSS Distributions 50*f6217f89SApple OSS DistributionsLABEL(tramp_cerror_nocancel) 51*f6217f89SApple OSS Distributions mov %esp, %edx 52*f6217f89SApple OSS Distributions andl $0xfffffff0, %esp 53*f6217f89SApple OSS Distributions subl $16, %esp 54*f6217f89SApple OSS Distributions movl %edx, 4(%esp) 55*f6217f89SApple OSS Distributions movl %eax, (%esp) 56*f6217f89SApple OSS Distributions CALL_EXTERN(_cerror_nocancel) 57*f6217f89SApple OSS Distributions movl 4(%esp), %esp 58*f6217f89SApple OSS Distributions ret 59*f6217f89SApple OSS Distributions 60*f6217f89SApple OSS DistributionsLABEL(__sysenter_trap) 61*f6217f89SApple OSS Distributions popl %edx 62*f6217f89SApple OSS Distributions movl %esp, %ecx 63*f6217f89SApple OSS Distributions sysenter 64*f6217f89SApple OSS Distributions 65*f6217f89SApple OSS Distributions .globl _i386_get_ldt 66*f6217f89SApple OSS Distributions ALIGN 67*f6217f89SApple OSS Distributions_i386_get_ldt: 68*f6217f89SApple OSS Distributions movl $6,%eax 69*f6217f89SApple OSS Distributions MACHDEP_SYSCALL_TRAP 70*f6217f89SApple OSS Distributions jnb 2f 71*f6217f89SApple OSS Distributions jmp tramp_cerror 72*f6217f89SApple OSS Distributions2: ret 73*f6217f89SApple OSS Distributions 74*f6217f89SApple OSS Distributions 75*f6217f89SApple OSS Distributions .globl _i386_set_ldt 76*f6217f89SApple OSS Distributions ALIGN 77*f6217f89SApple OSS Distributions_i386_set_ldt: 78*f6217f89SApple OSS Distributions movl $5,%eax 79*f6217f89SApple OSS Distributions MACHDEP_SYSCALL_TRAP 80*f6217f89SApple OSS Distributions jnb 2f 81*f6217f89SApple OSS Distributions jmp tramp_cerror 82*f6217f89SApple OSS Distributions2: ret 83*f6217f89SApple OSS Distributions 84*f6217f89SApple OSS Distributions ALIGN 85*f6217f89SApple OSS Distributions .globl __thread_set_tsd_base 86*f6217f89SApple OSS Distributions__thread_set_tsd_base: 87*f6217f89SApple OSS Distributions pushl 4(%esp) 88*f6217f89SApple OSS Distributions pushl $0 89*f6217f89SApple OSS Distributions movl $3,%eax 90*f6217f89SApple OSS Distributions MACHDEP_SYSCALL_TRAP 91*f6217f89SApple OSS Distributions addl $8,%esp 92*f6217f89SApple OSS Distributions ret 93*f6217f89SApple OSS Distributions 94*f6217f89SApple OSS Distributions#elif defined(__x86_64__) 95*f6217f89SApple OSS Distributions 96*f6217f89SApple OSS Distributions .globl _i386_get_ldt 97*f6217f89SApple OSS Distributions ALIGN 98*f6217f89SApple OSS Distributions_i386_get_ldt: 99*f6217f89SApple OSS Distributions movl $SYSCALL_CONSTRUCT_MDEP(6), %eax 100*f6217f89SApple OSS Distributions MACHDEP_SYSCALL_TRAP 101*f6217f89SApple OSS Distributions jnb 2f 102*f6217f89SApple OSS Distributions movq %rax, %rdi 103*f6217f89SApple OSS Distributions jmp _cerror 104*f6217f89SApple OSS Distributions2: ret 105*f6217f89SApple OSS Distributions 106*f6217f89SApple OSS Distributions 107*f6217f89SApple OSS Distributions .globl _i386_set_ldt 108*f6217f89SApple OSS Distributions ALIGN 109*f6217f89SApple OSS Distributions_i386_set_ldt: 110*f6217f89SApple OSS Distributions movl $SYSCALL_CONSTRUCT_MDEP(5), %eax 111*f6217f89SApple OSS Distributions MACHDEP_SYSCALL_TRAP 112*f6217f89SApple OSS Distributions jnb 2f 113*f6217f89SApple OSS Distributions movq %rax, %rdi 114*f6217f89SApple OSS Distributions jmp _cerror 115*f6217f89SApple OSS Distributions2: ret 116*f6217f89SApple OSS Distributions 117*f6217f89SApple OSS Distributions ALIGN 118*f6217f89SApple OSS Distributions .globl __thread_set_tsd_base 119*f6217f89SApple OSS Distributions__thread_set_tsd_base: 120*f6217f89SApple OSS Distributions movl $0, %esi // 0 as the second argument 121*f6217f89SApple OSS Distributions movl $ SYSCALL_CONSTRUCT_MDEP(3), %eax // Machine-dependent syscall number 3 122*f6217f89SApple OSS Distributions MACHDEP_SYSCALL_TRAP 123*f6217f89SApple OSS Distributions ret 124*f6217f89SApple OSS Distributions 125*f6217f89SApple OSS Distributions#elif defined(__arm__) 126*f6217f89SApple OSS Distributions 127*f6217f89SApple OSS Distributions .align 2 128*f6217f89SApple OSS Distributions .globl __thread_set_tsd_base 129*f6217f89SApple OSS Distributions__thread_set_tsd_base: 130*f6217f89SApple OSS Distributions mov r3, #2 131*f6217f89SApple OSS Distributions mov r12, #0x80000000 132*f6217f89SApple OSS Distributions swi #SWI_SYSCALL 133*f6217f89SApple OSS Distributions bx lr 134*f6217f89SApple OSS Distributions 135*f6217f89SApple OSS Distributions#elif defined(__arm64__) 136*f6217f89SApple OSS Distributions 137*f6217f89SApple OSS Distributions .align 2 138*f6217f89SApple OSS Distributions .globl __thread_set_tsd_base 139*f6217f89SApple OSS Distributions__thread_set_tsd_base: 140*f6217f89SApple OSS Distributions mov x3, #2 141*f6217f89SApple OSS Distributions mov x16, #0x80000000 142*f6217f89SApple OSS Distributions svc #SWI_SYSCALL 143*f6217f89SApple OSS Distributions ret 144*f6217f89SApple OSS Distributions 145*f6217f89SApple OSS Distributions#else 146*f6217f89SApple OSS Distributions#error unknown architecture 147*f6217f89SApple OSS Distributions#endif 148*f6217f89SApple OSS Distributions 149*f6217f89SApple OSS Distributions.subsections_via_symbols 150