projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| c65d76ed SG |
1 | /* |
| 2 | * crt0-efi-aarch64.S - PE/COFF header for aarch64 EFI applications | |
| 3 | * | |
| 4 | * Copright (C) 2014 Linaro Ltd. <ard.biesheuvel@linaro.org> | |
| 5 | * | |
| 6 | * SPDX-License-Identifier: GPL-2.0+ BSD-2-Clause | |
| 7 | * | |
| 8 | * This file is taken and modified from the gnu-efi project. | |
| 9 | */ | |
| 10 | ||
| 268ec6e0 HS |
11 | #include <asm-generic/pe.h> |
| 12 | ||
| c65d76ed SG |
13 | .section .text.head |
| 14 | ||
| 15 | /* | |
| 16 | * Magic "MZ" signature for PE/COFF | |
| 17 | */ | |
| 18 | .globl ImageBase | |
| 19 | ImageBase: | |
| 20 | .ascii "MZ" | |
| 21 | .skip 58 /* 'MZ' + pad + offset == 64 */ | |
| 22 | .long pe_header - ImageBase /* Offset to the PE header */ | |
| 23 | pe_header: | |
| 24 | .ascii "PE" | |
| 25 | .short 0 | |
| 26 | coff_header: | |
| 27 | .short 0xaa64 /* AArch64 */ | |
| 28 | .short 2 /* nr_sections */ | |
| 29 | .long 0 /* TimeDateStamp */ | |
| 30 | .long 0 /* PointerToSymbolTable */ | |
| 31 | .long 1 /* NumberOfSymbols */ | |
| 32 | .short section_table - optional_header /* SizeOfOptionalHeader */ | |
| 33 | /* | |
| 34 | * Characteristics: IMAGE_FILE_DEBUG_STRIPPED | | |
| 35 | * IMAGE_FILE_EXECUTABLE_IMAGE | IMAGE_FILE_LINE_NUMS_STRIPPED | |
| 36 | */ | |
| 37 | .short 0x206 | |
| 38 | optional_header: | |
| 39 | .short 0x20b /* PE32+ format */ | |
| 40 | .byte 0x02 /* MajorLinkerVersion */ | |
| 41 | .byte 0x14 /* MinorLinkerVersion */ | |
| 42 | .long _edata - _start /* SizeOfCode */ | |
| 43 | .long 0 /* SizeOfInitializedData */ | |
| 44 | .long 0 /* SizeOfUninitializedData */ | |
| 45 | .long _start - ImageBase /* AddressOfEntryPoint */ | |
| 46 | .long _start - ImageBase /* BaseOfCode */ | |
| 47 | ||
| 48 | extra_header_fields: | |
| 49 | .quad 0 /* ImageBase */ | |
| 50 | .long 0x20 /* SectionAlignment */ | |
| 51 | .long 0x8 /* FileAlignment */ | |
| 52 | .short 0 /* MajorOperatingSystemVersion */ | |
| 53 | .short 0 /* MinorOperatingSystemVersion */ | |
| 54 | .short 0 /* MajorImageVersion */ | |
| 55 | .short 0 /* MinorImageVersion */ | |
| 56 | .short 0 /* MajorSubsystemVersion */ | |
| 57 | .short 0 /* MinorSubsystemVersion */ | |
| 58 | .long 0 /* Win32VersionValue */ | |
| 59 | ||
| 60 | .long _edata - ImageBase /* SizeOfImage */ | |
| 61 | ||
| 62 | /* | |
| 63 | * Everything before the kernel image is considered part of the header | |
| 64 | */ | |
| 65 | .long _start - ImageBase /* SizeOfHeaders */ | |
| 66 | .long 0 /* CheckSum */ | |
| 268ec6e0 | 67 | .short IMAGE_SUBSYSTEM_EFI_APPLICATION /* Subsystem */ |
| c65d76ed SG |
68 | .short 0 /* DllCharacteristics */ |
| 69 | .quad 0 /* SizeOfStackReserve */ | |
| 70 | .quad 0 /* SizeOfStackCommit */ | |
| 71 | .quad 0 /* SizeOfHeapReserve */ | |
| 72 | .quad 0 /* SizeOfHeapCommit */ | |
| 73 | .long 0 /* LoaderFlags */ | |
| 74 | .long 0x6 /* NumberOfRvaAndSizes */ | |
| 75 | ||
| 76 | .quad 0 /* ExportTable */ | |
| 77 | .quad 0 /* ImportTable */ | |
| 78 | .quad 0 /* ResourceTable */ | |
| 79 | .quad 0 /* ExceptionTable */ | |
| 80 | .quad 0 /* CertificationTable */ | |
| 81 | .quad 0 /* BaseRelocationTable */ | |
| 82 | ||
| 83 | /* Section table */ | |
| 84 | section_table: | |
| 85 | ||
| 86 | /* | |
| 87 | * The EFI application loader requires a relocation section | |
| 88 | * because EFI applications must be relocatable. This is a | |
| 89 | * dummy section as far as we are concerned. | |
| 90 | */ | |
| 91 | .ascii ".reloc" | |
| 92 | .byte 0 | |
| 93 | .byte 0 /* end of 0 padding of section name */ | |
| 94 | .long 0 | |
| 95 | .long 0 | |
| 96 | .long 0 /* SizeOfRawData */ | |
| 97 | .long 0 /* PointerToRawData */ | |
| 98 | .long 0 /* PointerToRelocations */ | |
| 99 | .long 0 /* PointerToLineNumbers */ | |
| 100 | .short 0 /* NumberOfRelocations */ | |
| 101 | .short 0 /* NumberOfLineNumbers */ | |
| 102 | .long 0x42100040 /* Characteristics (section flags) */ | |
| 103 | ||
| 104 | ||
| 105 | .ascii ".text" | |
| 106 | .byte 0 | |
| 107 | .byte 0 | |
| 108 | .byte 0 /* end of 0 padding of section name */ | |
| 109 | .long _edata - _start /* VirtualSize */ | |
| 110 | .long _start - ImageBase /* VirtualAddress */ | |
| 111 | .long _edata - _start /* SizeOfRawData */ | |
| 112 | .long _start - ImageBase /* PointerToRawData */ | |
| 113 | ||
| 114 | .long 0 /* PointerToRelocations (0 for executables) */ | |
| 115 | .long 0 /* PointerToLineNumbers (0 for executables) */ | |
| 116 | .short 0 /* NumberOfRelocations (0 for executables) */ | |
| 117 | .short 0 /* NumberOfLineNumbers (0 for executables) */ | |
| 118 | .long 0xe0500020 /* Characteristics (section flags) */ | |
| 119 | ||
| 120 | _start: | |
| 121 | stp x29, x30, [sp, #-32]! | |
| 122 | mov x29, sp | |
| 123 | ||
| 124 | stp x0, x1, [sp, #16] | |
| 125 | mov x2, x0 | |
| 126 | mov x3, x1 | |
| 127 | adr x0, ImageBase | |
| 128 | adrp x1, _DYNAMIC | |
| 129 | add x1, x1, #:lo12:_DYNAMIC | |
| 130 | bl _relocate | |
| 131 | cbnz x0, 0f | |
| 132 | ||
| 133 | ldp x0, x1, [sp, #16] | |
| 134 | bl efi_main | |
| 135 | ||
| 136 | 0: ldp x29, x30, [sp], #32 | |
| 137 | ret |