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arch/arm64/kernel/efi-header.S
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81f7e3824 Initial Release, ... |
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/* * Copyright (C) 2013 - 2017 Linaro, Ltd. * Copyright (C) 2013, 2014 Red Hat, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/pe.h> #include <linux/sizes.h> .macro __EFI_PE_HEADER .long PE_MAGIC coff_header: .short IMAGE_FILE_MACHINE_ARM64 // Machine .short section_count // NumberOfSections .long 0 // TimeDateStamp .long 0 // PointerToSymbolTable .long 0 // NumberOfSymbols .short section_table - optional_header // SizeOfOptionalHeader .short IMAGE_FILE_DEBUG_STRIPPED | \ IMAGE_FILE_EXECUTABLE_IMAGE | \ IMAGE_FILE_LINE_NUMS_STRIPPED // Characteristics optional_header: .short PE_OPT_MAGIC_PE32PLUS // PE32+ format .byte 0x02 // MajorLinkerVersion .byte 0x14 // MinorLinkerVersion .long __initdata_begin - efi_header_end // SizeOfCode .long __pecoff_data_size // SizeOfInitializedData .long 0 // SizeOfUninitializedData .long __efistub_entry - _head // AddressOfEntryPoint .long efi_header_end - _head // BaseOfCode extra_header_fields: .quad 0 // ImageBase .long SZ_4K // SectionAlignment .long PECOFF_FILE_ALIGNMENT // FileAlignment .short 0 // MajorOperatingSystemVersion .short 0 // MinorOperatingSystemVersion .short 0 // MajorImageVersion .short 0 // MinorImageVersion .short 0 // MajorSubsystemVersion .short 0 // MinorSubsystemVersion .long 0 // Win32VersionValue .long _end - _head // SizeOfImage // Everything before the kernel image is considered part of the header .long efi_header_end - _head // SizeOfHeaders .long 0 // CheckSum .short IMAGE_SUBSYSTEM_EFI_APPLICATION // Subsystem .short 0 // DllCharacteristics .quad 0 // SizeOfStackReserve .quad 0 // SizeOfStackCommit .quad 0 // SizeOfHeapReserve .quad 0 // SizeOfHeapCommit .long 0 // LoaderFlags .long (section_table - .) / 8 // NumberOfRvaAndSizes .quad 0 // ExportTable .quad 0 // ImportTable .quad 0 // ResourceTable .quad 0 // ExceptionTable .quad 0 // CertificationTable .quad 0 // BaseRelocationTable #ifdef CONFIG_DEBUG_EFI .long efi_debug_table - _head // DebugTable .long efi_debug_table_size #endif // Section table section_table: .ascii ".text\0\0\0" .long __initdata_begin - efi_header_end // VirtualSize .long efi_header_end - _head // VirtualAddress .long __initdata_begin - efi_header_end // SizeOfRawData .long efi_header_end - _head // PointerToRawData .long 0 // PointerToRelocations .long 0 // PointerToLineNumbers .short 0 // NumberOfRelocations .short 0 // NumberOfLineNumbers .long IMAGE_SCN_CNT_CODE | \ IMAGE_SCN_MEM_READ | \ IMAGE_SCN_MEM_EXECUTE // Characteristics .ascii ".data\0\0\0" .long __pecoff_data_size // VirtualSize .long __initdata_begin - _head // VirtualAddress .long __pecoff_data_rawsize // SizeOfRawData .long __initdata_begin - _head // PointerToRawData .long 0 // PointerToRelocations .long 0 // PointerToLineNumbers .short 0 // NumberOfRelocations .short 0 // NumberOfLineNumbers .long IMAGE_SCN_CNT_INITIALIZED_DATA | \ IMAGE_SCN_MEM_READ | \ IMAGE_SCN_MEM_WRITE // Characteristics .set section_count, (. - section_table) / 40 #ifdef CONFIG_DEBUG_EFI /* * The debug table is referenced via its Relative Virtual Address (RVA), * which is only defined for those parts of the image that are covered * by a section declaration. Since this header is not covered by any * section, the debug table must be emitted elsewhere. So stick it in * the .init.rodata section instead. * * Note that the EFI debug entry itself may legally have a zero RVA, * which means we can simply put it right after the section headers. */ __INITRODATA .align 2 efi_debug_table: // EFI_IMAGE_DEBUG_DIRECTORY_ENTRY .long 0 // Characteristics .long 0 // TimeDateStamp .short 0 // MajorVersion .short 0 // MinorVersion .long IMAGE_DEBUG_TYPE_CODEVIEW // Type .long efi_debug_entry_size // SizeOfData .long 0 // RVA .long efi_debug_entry - _head // FileOffset .set efi_debug_table_size, . - efi_debug_table .previous efi_debug_entry: // EFI_IMAGE_DEBUG_CODEVIEW_NB10_ENTRY .ascii "NB10" // Signature .long 0 // Unknown .long 0 // Unknown2 .long 0 // Unknown3 .asciz VMLINUX_PATH .set efi_debug_entry_size, . - efi_debug_entry #endif /* * EFI will load .text onwards at the 4k section alignment * described in the PE/COFF header. To ensure that instruction * sequences using an adrp and a :lo12: immediate will function * correctly at this alignment, we must ensure that .text is * placed at a 4k boundary in the Image to begin with. */ .align 12 efi_header_end: .endm |