112 lines
3.5 KiB
ArmAsm
112 lines
3.5 KiB
ArmAsm
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2020 Western Digital Corporation or its affiliates.
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* Adapted from arch/arm64/kernel/efi-header.S
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*/
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#include <linux/pe.h>
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#include <linux/sizes.h>
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.macro __EFI_PE_HEADER
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.long PE_MAGIC
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coff_header:
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#ifdef CONFIG_64BIT
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.short IMAGE_FILE_MACHINE_RISCV64 // Machine
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#else
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.short IMAGE_FILE_MACHINE_RISCV32 // Machine
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#endif
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.short section_count // NumberOfSections
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.long 0 // TimeDateStamp
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.long 0 // PointerToSymbolTable
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.long 0 // NumberOfSymbols
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.short section_table - optional_header // SizeOfOptionalHeader
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.short IMAGE_FILE_DEBUG_STRIPPED | \
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IMAGE_FILE_EXECUTABLE_IMAGE | \
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IMAGE_FILE_LINE_NUMS_STRIPPED // Characteristics
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optional_header:
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#ifdef CONFIG_64BIT
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.short PE_OPT_MAGIC_PE32PLUS // PE32+ format
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#else
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.short PE_OPT_MAGIC_PE32 // PE32 format
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#endif
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.byte 0x02 // MajorLinkerVersion
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.byte 0x14 // MinorLinkerVersion
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.long __pecoff_text_end - efi_header_end // SizeOfCode
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.long __pecoff_data_virt_size // SizeOfInitializedData
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.long 0 // SizeOfUninitializedData
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.long __efistub_efi_pe_entry - _start // AddressOfEntryPoint
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.long efi_header_end - _start // BaseOfCode
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#ifdef CONFIG_32BIT
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.long __pecoff_text_end - _start // BaseOfData
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#endif
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extra_header_fields:
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.quad 0 // ImageBase
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.long PECOFF_SECTION_ALIGNMENT // SectionAlignment
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.long PECOFF_FILE_ALIGNMENT // FileAlignment
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.short 0 // MajorOperatingSystemVersion
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.short 0 // MinorOperatingSystemVersion
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.short LINUX_EFISTUB_MAJOR_VERSION // MajorImageVersion
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.short LINUX_EFISTUB_MINOR_VERSION // MinorImageVersion
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.short 0 // MajorSubsystemVersion
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.short 0 // MinorSubsystemVersion
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.long 0 // Win32VersionValue
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.long _end - _start // SizeOfImage
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// Everything before the kernel image is considered part of the header
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.long efi_header_end - _start // SizeOfHeaders
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.long 0 // CheckSum
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.short IMAGE_SUBSYSTEM_EFI_APPLICATION // Subsystem
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.short 0 // DllCharacteristics
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.quad 0 // SizeOfStackReserve
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.quad 0 // SizeOfStackCommit
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.quad 0 // SizeOfHeapReserve
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.quad 0 // SizeOfHeapCommit
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.long 0 // LoaderFlags
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.long (section_table - .) / 8 // NumberOfRvaAndSizes
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.quad 0 // ExportTable
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.quad 0 // ImportTable
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.quad 0 // ResourceTable
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.quad 0 // ExceptionTable
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.quad 0 // CertificationTable
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.quad 0 // BaseRelocationTable
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// Section table
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section_table:
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.ascii ".text\0\0\0"
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.long __pecoff_text_end - efi_header_end // VirtualSize
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.long efi_header_end - _start // VirtualAddress
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.long __pecoff_text_end - efi_header_end // SizeOfRawData
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.long efi_header_end - _start // PointerToRawData
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.long 0 // PointerToRelocations
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.long 0 // PointerToLineNumbers
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.short 0 // NumberOfRelocations
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.short 0 // NumberOfLineNumbers
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.long IMAGE_SCN_CNT_CODE | \
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IMAGE_SCN_MEM_READ | \
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IMAGE_SCN_MEM_EXECUTE // Characteristics
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.ascii ".data\0\0\0"
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.long __pecoff_data_virt_size // VirtualSize
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.long __pecoff_text_end - _start // VirtualAddress
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.long __pecoff_data_raw_size // SizeOfRawData
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.long __pecoff_text_end - _start // PointerToRawData
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.long 0 // PointerToRelocations
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.long 0 // PointerToLineNumbers
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.short 0 // NumberOfRelocations
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.short 0 // NumberOfLineNumbers
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.long IMAGE_SCN_CNT_INITIALIZED_DATA | \
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IMAGE_SCN_MEM_READ | \
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IMAGE_SCN_MEM_WRITE // Characteristics
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.set section_count, (. - section_table) / 40
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.balign 0x1000
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efi_header_end:
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.endm
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