| | 1 | /* |
| | 2 | * Copyright (c) 2007-2009 Apple Inc. All rights reserved. |
| | 3 | * |
| | 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
| | 5 | * |
| | 6 | * This file contains Original Code and/or Modifications of Original Code |
| | 7 | * as defined in and that are subject to the Apple Public Source License |
| | 8 | * Version 2.0 (the 'License'). You may not use this file except in |
| | 9 | * compliance with the License. The rights granted to you under the License |
| | 10 | * may not be used to create, or enable the creation or redistribution of, |
| | 11 | * unlawful or unlicensed copies of an Apple operating system, or to |
| | 12 | * circumvent, violate, or enable the circumvention or violation of, any |
| | 13 | * terms of an Apple operating system software license agreement. |
| | 14 | * |
| | 15 | * Please obtain a copy of the License at |
| | 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
| | 17 | * |
| | 18 | * The Original Code and all software distributed under the License are |
| | 19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
| | 20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| | 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
| | 22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| | 23 | * Please see the License for the specific language governing rights and |
| | 24 | * limitations under the License. |
| | 25 | * |
| | 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
| | 27 | */ |
| | 28 | #include <arm/asm.h> |
| | 29 | #include <arm/proc_reg.h> |
| | 30 | #include "assym.s" |
| | 31 | |
| | 32 | #if defined(__arm__) |
| | 33 | #include "globals_asm.h" |
| | 34 | #elif defined(__arm64__) |
| | 35 | /* We're fine, use adrp, add */ |
| | 36 | #else |
| | 37 | #error Unknown architecture. |
| | 38 | #endif |
| | 39 | |
| | 40 | .section __BOOTDATA, __data // Aligned data |
| | 41 | |
| | 42 | .align 14 |
| | 43 | |
| | 44 | .globl EXT(intstack_low_guard) |
| | 45 | LEXT(intstack_low_guard) |
| | 46 | .space (PAGE_MAX_SIZE_NUM) |
| | 47 | |
| | 48 | /* IRQ stack */ |
| | 49 | .globl EXT(intstack) // Boot processor IRQ stack |
| | 50 | LEXT(intstack) |
| | 51 | .space (INTSTACK_SIZE_NUM) |
| | 52 | .globl EXT(intstack_top) |
| | 53 | LEXT(intstack_top) |
| | 54 | |
| | 55 | .globl EXT(intstack_high_guard) |
| | 56 | LEXT(intstack_high_guard) |
| | 57 | .space (PAGE_MAX_SIZE_NUM) |
| | 58 | |
| | 59 | /* Low guard for fiq/exception stack is shared w/ interrupt stack high guard */ |
| | 60 | |
| | 61 | #ifndef __arm64__ |
| | 62 | |
| | 63 | .globl EXT(fiqstack) // Boot processor FIQ stack |
| | 64 | LEXT(fiqstack) |
| | 65 | .space (FIQSTACK_SIZE_NUM) |
| | 66 | .globl EXT(fiqstack_top) // Boot processor FIQ stack top |
| | 67 | LEXT(fiqstack_top) |
| | 68 | |
| | 69 | .globl EXT(fiqstack_high_guard) |
| | 70 | LEXT(fiqstack_high_guard) |
| | 71 | .space (PAGE_MAX_SIZE_NUM) |
| | 72 | |
| | 73 | #else |
| | 74 | |
| | 75 | .global EXT(excepstack) |
| | 76 | LEXT(excepstack) |
| | 77 | .space (EXCEPSTACK_SIZE_NUM) |
| | 78 | .globl EXT(excepstack_top) |
| | 79 | LEXT(excepstack_top) |
| | 80 | |
| | 81 | .globl EXT(excepstack_high_guard) |
| | 82 | LEXT(excepstack_high_guard) |
| | 83 | .space (PAGE_MAX_SIZE_NUM) |
| | 84 | |
| | 85 | #endif |
| | 86 | |
| | 87 | // Must align to 16K here, due to <rdar://problem/33268668> |
| | 88 | .global EXT(kd_early_buffer) |
| | 89 | .align 14 |
| | 90 | LEXT(kd_early_buffer) // space for kdebug's early event buffer |
| | 91 | .space 16*1024,0 |
| | 92 | |
| | 93 | .section __DATA, __data // Aligned data |
| | 94 | .align 3 // unsigned long long aligned Section |
| | 95 | .globl EXT(RTClockData) |
| | 96 | LEXT(RTClockData) // Real Time clock area |
| | 97 | .space RTCLOCKDataSize_NUM,0 // (filled with 0s) |
| | 98 | |
| | 99 | #if TRASH_VFP_ON_SAVE |
| | 100 | .align 4 |
| | 101 | .globl EXT(vfptrash_data) |
| | 102 | LEXT(vfptrash_data) |
| | 103 | .fill 64, 4, 0xca55e77e |
| | 104 | #endif |
| | 105 | |
| | 106 | #if __arm64__ |
| | 107 | .section __DATA, __const |
| | 108 | |
| | 109 | #if defined(KERNEL_INTEGRITY_KTRR) |
| | 110 | /* reserve space for read only page tables */ |
| | 111 | .align 14 |
| | 112 | LEXT(ropagetable_begin) |
| | 113 | .space 14*16*1024,0 |
| | 114 | #else |
| | 115 | LEXT(ropagetable_begin) |
| | 116 | #endif /* defined(KERNEL_INTEGRITY_KTRR)*/ |
| | 117 | |
| | 118 | LEXT(ropagetable_end) |
| | 119 | |
| | 120 | .globl EXT(ropagetable_begin) |
| | 121 | .globl EXT(ropagetable_end) |
| | 122 | #endif /* __arm64__ */ |
| | 123 | |
| | 124 | /* vim: set ts=4: */ |
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