efi-header.S (3542B)
1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * Copyright (C) 2020 Western Digital Corporation or its affiliates. 4 * Adapted from arch/arm64/kernel/efi-header.S 5 */ 6 7#include <linux/pe.h> 8#include <linux/sizes.h> 9 10 .macro __EFI_PE_HEADER 11 .long PE_MAGIC 12coff_header: 13#ifdef CONFIG_64BIT 14 .short IMAGE_FILE_MACHINE_RISCV64 // Machine 15#else 16 .short IMAGE_FILE_MACHINE_RISCV32 // Machine 17#endif 18 .short section_count // NumberOfSections 19 .long 0 // TimeDateStamp 20 .long 0 // PointerToSymbolTable 21 .long 0 // NumberOfSymbols 22 .short section_table - optional_header // SizeOfOptionalHeader 23 .short IMAGE_FILE_DEBUG_STRIPPED | \ 24 IMAGE_FILE_EXECUTABLE_IMAGE | \ 25 IMAGE_FILE_LINE_NUMS_STRIPPED // Characteristics 26 27optional_header: 28#ifdef CONFIG_64BIT 29 .short PE_OPT_MAGIC_PE32PLUS // PE32+ format 30#else 31 .short PE_OPT_MAGIC_PE32 // PE32 format 32#endif 33 .byte 0x02 // MajorLinkerVersion 34 .byte 0x14 // MinorLinkerVersion 35 .long __pecoff_text_end - efi_header_end // SizeOfCode 36 .long __pecoff_data_virt_size // SizeOfInitializedData 37 .long 0 // SizeOfUninitializedData 38 .long __efistub_efi_pe_entry - _start // AddressOfEntryPoint 39 .long efi_header_end - _start // BaseOfCode 40#ifdef CONFIG_32BIT 41 .long __pecoff_text_end - _start // BaseOfData 42#endif 43 44extra_header_fields: 45 .quad 0 // ImageBase 46 .long PECOFF_SECTION_ALIGNMENT // SectionAlignment 47 .long PECOFF_FILE_ALIGNMENT // FileAlignment 48 .short 0 // MajorOperatingSystemVersion 49 .short 0 // MinorOperatingSystemVersion 50 .short LINUX_EFISTUB_MAJOR_VERSION // MajorImageVersion 51 .short LINUX_EFISTUB_MINOR_VERSION // MinorImageVersion 52 .short 0 // MajorSubsystemVersion 53 .short 0 // MinorSubsystemVersion 54 .long 0 // Win32VersionValue 55 56 .long _end - _start // SizeOfImage 57 58 // Everything before the kernel image is considered part of the header 59 .long efi_header_end - _start // SizeOfHeaders 60 .long 0 // CheckSum 61 .short IMAGE_SUBSYSTEM_EFI_APPLICATION // Subsystem 62 .short 0 // DllCharacteristics 63 .quad 0 // SizeOfStackReserve 64 .quad 0 // SizeOfStackCommit 65 .quad 0 // SizeOfHeapReserve 66 .quad 0 // SizeOfHeapCommit 67 .long 0 // LoaderFlags 68 .long (section_table - .) / 8 // NumberOfRvaAndSizes 69 70 .quad 0 // ExportTable 71 .quad 0 // ImportTable 72 .quad 0 // ResourceTable 73 .quad 0 // ExceptionTable 74 .quad 0 // CertificationTable 75 .quad 0 // BaseRelocationTable 76 77 // Section table 78section_table: 79 .ascii ".text\0\0\0" 80 .long __pecoff_text_end - efi_header_end // VirtualSize 81 .long efi_header_end - _start // VirtualAddress 82 .long __pecoff_text_end - efi_header_end // SizeOfRawData 83 .long efi_header_end - _start // PointerToRawData 84 85 .long 0 // PointerToRelocations 86 .long 0 // PointerToLineNumbers 87 .short 0 // NumberOfRelocations 88 .short 0 // NumberOfLineNumbers 89 .long IMAGE_SCN_CNT_CODE | \ 90 IMAGE_SCN_MEM_READ | \ 91 IMAGE_SCN_MEM_EXECUTE // Characteristics 92 93 .ascii ".data\0\0\0" 94 .long __pecoff_data_virt_size // VirtualSize 95 .long __pecoff_text_end - _start // VirtualAddress 96 .long __pecoff_data_raw_size // SizeOfRawData 97 .long __pecoff_text_end - _start // PointerToRawData 98 99 .long 0 // PointerToRelocations 100 .long 0 // PointerToLineNumbers 101 .short 0 // NumberOfRelocations 102 .short 0 // NumberOfLineNumbers 103 .long IMAGE_SCN_CNT_INITIALIZED_DATA | \ 104 IMAGE_SCN_MEM_READ | \ 105 IMAGE_SCN_MEM_WRITE // Characteristics 106 107 .set section_count, (. - section_table) / 40 108 109 .balign 0x1000 110efi_header_end: 111 .endm