2 * Copyright (C) 2013-2015 Linaro Ltd
3 * Authors: Roy Franz <roy.franz@linaro.org>
4 * Ard Biesheuvel <ard.biesheuvel@linaro.org>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
12 #ifdef CONFIG_EFI_STUB
13 @ This is almost but not quite a NOP, since it does clobber the
14 @ condition flags. But it is the best we can do for EFI, since
15 @ PE/COFF expects the magic string "MZ" at offset 0, while the
16 @ ARM/Linux boot protocol expects an executable instruction
18 .inst 'M' | ('Z' << 8) | (0x1310 << 16) @ tstne r0, #0x4d000
25 #ifdef CONFIG_EFI_STUB
26 .set start_offset, __efi_start - start
29 @ The PE header can be anywhere in the file, but for
30 @ simplicity we keep it together with the MSDOS header
31 @ The offset to the PE/COFF header needs to be at offset
32 @ 0x3C in the MSDOS header.
33 @ The only 2 fields of the MSDOS header that are used are this
34 @ PE/COFF offset, and the "MZ" bytes at offset 0x0.
36 .long pe_header - start @ Offset to the PE header.
42 .short 0x01c2 @ ARM or Thumb
43 .short 2 @ nr_sections
44 .long 0 @ TimeDateStamp
45 .long 0 @ PointerToSymbolTable
46 .long 1 @ NumberOfSymbols
47 .short section_table - optional_header
48 @ SizeOfOptionalHeader
49 .short 0x306 @ Characteristics.
50 @ IMAGE_FILE_32BIT_MACHINE |
51 @ IMAGE_FILE_DEBUG_STRIPPED |
52 @ IMAGE_FILE_EXECUTABLE_IMAGE |
53 @ IMAGE_FILE_LINE_NUMS_STRIPPED
56 .short 0x10b @ PE32 format
57 .byte 0x02 @ MajorLinkerVersion
58 .byte 0x14 @ MinorLinkerVersion
59 .long _end - __efi_start @ SizeOfCode
60 .long 0 @ SizeOfInitializedData
61 .long 0 @ SizeOfUninitializedData
62 .long efi_stub_entry - start @ AddressOfEntryPoint
63 .long start_offset @ BaseOfCode
68 .long 0x200 @ SectionAlignment
69 .long 0x200 @ FileAlignment
70 .short 0 @ MajorOperatingSystemVersion
71 .short 0 @ MinorOperatingSystemVersion
72 .short 0 @ MajorImageVersion
73 .short 0 @ MinorImageVersion
74 .short 0 @ MajorSubsystemVersion
75 .short 0 @ MinorSubsystemVersion
76 .long 0 @ Win32VersionValue
78 .long _end - start @ SizeOfImage
79 .long start_offset @ SizeOfHeaders
81 .short 0xa @ Subsystem (EFI application)
82 .short 0 @ DllCharacteristics
83 .long 0 @ SizeOfStackReserve
84 .long 0 @ SizeOfStackCommit
85 .long 0 @ SizeOfHeapReserve
86 .long 0 @ SizeOfHeapCommit
88 .long 0x6 @ NumberOfRvaAndSizes
92 .quad 0 @ ResourceTable
93 .quad 0 @ ExceptionTable
94 .quad 0 @ CertificationTable
95 .quad 0 @ BaseRelocationTable
99 @ The EFI application loader requires a relocation section
100 @ because EFI applications must be relocatable. This is a
101 @ dummy section as far as we are concerned.
104 .long 0 @ VirtualSize
105 .long 0 @ VirtualAddress
106 .long 0 @ SizeOfRawData
107 .long 0 @ PointerToRawData
108 .long 0 @ PointerToRelocations
109 .long 0 @ PointerToLineNumbers
110 .short 0 @ NumberOfRelocations
111 .short 0 @ NumberOfLineNumbers
112 .long 0x42100040 @ Characteristics
115 .long _end - __efi_start @ VirtualSize
116 .long __efi_start @ VirtualAddress
117 .long _edata - __efi_start @ SizeOfRawData
118 .long __efi_start @ PointerToRawData
119 .long 0 @ PointerToRelocations
120 .long 0 @ PointerToLineNumbers
121 .short 0 @ NumberOfRelocations
122 .short 0 @ NumberOfLineNumbers
123 .long 0xe0500020 @ Characteristics