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gerrit.cesnet.cz / github / trini / u-boot / a35c33c0dc9ef9d2ab44cf677ac17a359c79b019 / . / arch / arm / lib / crt0_aarch64_efi.S
blob: 368933ecf2d6edfe2542ebb182efe2c0dffc75fa [file] [log] [blame]
Tom Rini4549e782018-05-06 18:27:01 -0400[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0+ OR BSD-2-Clause */
Simon Glassc65d76e2016-11-07 08:47:11 -0700[diff] [blame]2/*
3 * crt0-efi-aarch64.S - PE/COFF header for aarch64 EFI applications
4 *
5 * Copright (C) 2014 Linaro Ltd. <ard.biesheuvel@linaro.org>
6 *
Simon Glassc65d76e2016-11-07 08:47:11 -0700[diff] [blame]7 *
8 * This file is taken and modified from the gnu-efi project.
9 */
10
Heinrich Schuchardt268ec6e2018-01-31 18:45:35 +0000[diff] [blame]11#include <asm-generic/pe.h>
12
Simon Glassc65d76e2016-11-07 08:47:11 -0700[diff] [blame]13 .section .text.head
14
15 /*
16 * Magic "MZ" signature for PE/COFF
17 */
18 .globl ImageBase
19ImageBase:
Heinrich Schuchardta35c33c2019-07-11 06:39:32 +0200[diff] [blame^]20 .short IMAGE_DOS_SIGNATURE /* 'MZ' */
Simon Glassc65d76e2016-11-07 08:47:11 -0700[diff] [blame]21 .skip 58 /* 'MZ' + pad + offset == 64 */
22 .long pe_header - ImageBase /* Offset to the PE header */
23pe_header:
Heinrich Schuchardta35c33c2019-07-11 06:39:32 +0200[diff] [blame^]24 .long IMAGE_NT_SIGNATURE /* 'PE' */
Simon Glassc65d76e2016-11-07 08:47:11 -0700[diff] [blame]25coff_header:
Heinrich Schuchardta35c33c2019-07-11 06:39:32 +0200[diff] [blame^]26 .short IMAGE_FILE_MACHINE_ARM64 /* AArch64 */
Simon Glassc65d76e2016-11-07 08:47:11 -0700[diff] [blame]27 .short 2 /* nr_sections */
28 .long 0 /* TimeDateStamp */
29 .long 0 /* PointerToSymbolTable */
Bin Mengfb8ebf52018-10-02 07:39:33 -0700[diff] [blame]30 .long 0 /* NumberOfSymbols */
Simon Glassc65d76e2016-11-07 08:47:11 -0700[diff] [blame]31 .short section_table - optional_header /* SizeOfOptionalHeader */
Bin Mengfb8ebf52018-10-02 07:39:33 -0700[diff] [blame]32 /* Characteristics */
33 .short (IMAGE_FILE_EXECUTABLE_IMAGE | \
34 IMAGE_FILE_LINE_NUMS_STRIPPED | \
35 IMAGE_FILE_LOCAL_SYMS_STRIPPED | \
36 IMAGE_FILE_DEBUG_STRIPPED)
Simon Glassc65d76e2016-11-07 08:47:11 -0700[diff] [blame]37optional_header:
Heinrich Schuchardta35c33c2019-07-11 06:39:32 +0200[diff] [blame^]38 .short IMAGE_NT_OPTIONAL_HDR64_MAGIC /* PE32+ format */
Simon Glassc65d76e2016-11-07 08:47:11 -0700[diff] [blame]39 .byte 0x02 /* MajorLinkerVersion */
40 .byte 0x14 /* MinorLinkerVersion */
41 .long _edata - _start /* SizeOfCode */
42 .long 0 /* SizeOfInitializedData */
43 .long 0 /* SizeOfUninitializedData */
44 .long _start - ImageBase /* AddressOfEntryPoint */
45 .long _start - ImageBase /* BaseOfCode */
46
47extra_header_fields:
48 .quad 0 /* ImageBase */
49 .long 0x20 /* SectionAlignment */
50 .long 0x8 /* FileAlignment */
51 .short 0 /* MajorOperatingSystemVersion */
52 .short 0 /* MinorOperatingSystemVersion */
53 .short 0 /* MajorImageVersion */
54 .short 0 /* MinorImageVersion */
55 .short 0 /* MajorSubsystemVersion */
56 .short 0 /* MinorSubsystemVersion */
57 .long 0 /* Win32VersionValue */
58
59 .long _edata - ImageBase /* SizeOfImage */
60
61 /*
62 * Everything before the kernel image is considered part of the header
63 */
64 .long _start - ImageBase /* SizeOfHeaders */
65 .long 0 /* CheckSum */
Heinrich Schuchardt268ec6e2018-01-31 18:45:35 +0000[diff] [blame]66 .short IMAGE_SUBSYSTEM_EFI_APPLICATION /* Subsystem */
Simon Glassc65d76e2016-11-07 08:47:11 -0700[diff] [blame]67 .short 0 /* DllCharacteristics */
68 .quad 0 /* SizeOfStackReserve */
69 .quad 0 /* SizeOfStackCommit */
70 .quad 0 /* SizeOfHeapReserve */
71 .quad 0 /* SizeOfHeapCommit */
72 .long 0 /* LoaderFlags */
73 .long 0x6 /* NumberOfRvaAndSizes */
74
75 .quad 0 /* ExportTable */
76 .quad 0 /* ImportTable */
77 .quad 0 /* ResourceTable */
78 .quad 0 /* ExceptionTable */
79 .quad 0 /* CertificationTable */
80 .quad 0 /* BaseRelocationTable */
81
82 /* Section table */
83section_table:
84
85 /*
86 * The EFI application loader requires a relocation section
87 * because EFI applications must be relocatable. This is a
88 * dummy section as far as we are concerned.
89 */
90 .ascii ".reloc"
91 .byte 0
92 .byte 0 /* end of 0 padding of section name */
93 .long 0
94 .long 0
95 .long 0 /* SizeOfRawData */
96 .long 0 /* PointerToRawData */
97 .long 0 /* PointerToRelocations */
98 .long 0 /* PointerToLineNumbers */
99 .short 0 /* NumberOfRelocations */
100 .short 0 /* NumberOfLineNumbers */
101 .long 0x42100040 /* Characteristics (section flags) */
102
103
104 .ascii ".text"
105 .byte 0
106 .byte 0
107 .byte 0 /* end of 0 padding of section name */
108 .long _edata - _start /* VirtualSize */
109 .long _start - ImageBase /* VirtualAddress */
110 .long _edata - _start /* SizeOfRawData */
111 .long _start - ImageBase /* PointerToRawData */
112
113 .long 0 /* PointerToRelocations (0 for executables) */
114 .long 0 /* PointerToLineNumbers (0 for executables) */
115 .short 0 /* NumberOfRelocations (0 for executables) */
116 .short 0 /* NumberOfLineNumbers (0 for executables) */
117 .long 0xe0500020 /* Characteristics (section flags) */
118
119_start:
120 stp x29, x30, [sp, #-32]!
121 mov x29, sp
122
123 stp x0, x1, [sp, #16]
Simon Glassc65d76e2016-11-07 08:47:11 -0700[diff] [blame]124 adr x0, ImageBase
125 adrp x1, _DYNAMIC
126 add x1, x1, #:lo12:_DYNAMIC
127 bl _relocate
128 cbnz x0, 0f
129
130 ldp x0, x1, [sp, #16]
131 bl efi_main
132
1330: ldp x29, x30, [sp], #32
134 ret