projects / apple / xnu.git / blame
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|---|---|---|
| 5ba3f43e A |
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 | ||
| 41 | .section __DATA, __data // Aligned data | |
| 42 | ||
| 43 | #if __arm64__ | |
| 44 | /* | |
| 45 | * Exception stack; this is above the interrupt stack so we don't squash the interrupt | |
| 46 | * stack on an exception. | |
| 47 | */ | |
| 48 | .global EXT(excepstack) | |
| 49 | LEXT(excepstack) | |
| 50 | .space (4096) | |
| 51 | .globl EXT(excepstack_top) | |
| 52 | LEXT(excepstack_top) | |
| 53 | #endif | |
| 54 | ||
| 55 | /* IRQ stack */ | |
| 56 | .globl EXT(intstack) // Boot processor IRQ stack | |
| 57 | LEXT(intstack) | |
| 58 | .space (4*4096) | |
| 59 | .globl EXT(intstack_top) | |
| 60 | LEXT(intstack_top) | |
| 61 | ||
| 62 | ||
| 63 | .align 12 // Page aligned Section | |
| 64 | ||
| 65 | .globl EXT(fiqstack) // Boot processor FIQ stack | |
| 66 | LEXT(fiqstack) | |
| 67 | .space (4096) // One page size | |
| 68 | .globl EXT(fiqstack_top) // Boot processor FIQ stack top | |
| 69 | LEXT(fiqstack_top) | |
| 70 | ||
| 71 | .globl EXT(CpuDataEntries) | |
| 72 | .align 12 // Page aligned | |
| 73 | LEXT(CpuDataEntries) // Cpu Data Entry Array | |
| 74 | .space (cdeSize_NUM*MAX_CPUS_NUM),0 // (filled with 0s) | |
| 75 | ||
| 76 | .globl EXT(BootCpuData) | |
| 77 | .align 12 // Page aligned | |
| 78 | LEXT(BootCpuData) // Per cpu data area | |
| 79 | .space cdSize_NUM,0 // (filled with 0s) | |
| 80 | ||
| 81 | .align 3 // unsigned long long aligned Section | |
| 82 | .globl EXT(RTClockData) | |
| 83 | LEXT(RTClockData) // Real Time clock area | |
| 84 | .space RTCLOCKDataSize_NUM,0 // (filled with 0s) | |
| 85 | ||
| 86 | #if TRASH_VFP_ON_SAVE | |
| 87 | .align 4 | |
| 88 | .globl EXT(vfptrash_data) | |
| 89 | LEXT(vfptrash_data) | |
| 90 | .fill 64, 4, 0xca55e77e | |
| 91 | #endif | |
| 92 | ||
| 93 | // Must align to 16K here, due to <rdar://problem/33268668> | |
| 94 | .global EXT(kd_early_buffer) | |
| 95 | .align 14 | |
| 96 | LEXT(kd_early_buffer) // space for kdebug's early event buffer | |
| 97 | .space 16*1024,0 | |
| 98 | ||
| 99 | #if __arm64__ | |
| 100 | .section __DATA, __const | |
| 101 | ||
| 102 | #if defined(KERNEL_INTEGRITY_KTRR) | |
| 103 | /* reserve space for read only page tables */ | |
| 104 | .align 14 | |
| 105 | LEXT(ropagetable_begin) | |
| 106 | .space 16*16*1024,0 | |
| 107 | #else | |
| 108 | LEXT(ropagetable_begin) | |
| 109 | #endif /* defined(KERNEL_INTEGRITY_KTRR)*/ | |
| 110 | ||
| 111 | LEXT(ropagetable_end) | |
| 112 | ||
| 113 | .globl EXT(ropagetable_begin) | |
| 114 | .globl EXT(ropagetable_end) | |
| 115 | #endif /* __arm64__ */ | |
| 116 | ||
| 117 | /* vim: set ts=4: */ |