199 lines
6.4 KiB
C
199 lines
6.4 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2006,2007 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef GRUB_EFI_PE32_HEADER
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#define GRUB_EFI_PE32_HEADER 1
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#include <grub/types.h>
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/* The MSDOS compatibility stub. This was copied from the output of
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objcopy, and it is not necessary to care about what this means. */
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#define GRUB_PE32_MSDOS_STUB \
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{ \
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0x4d, 0x5a, 0x90, 0x00, 0x03, 0x00, 0x00, 0x00, \
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0x04, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, \
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0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
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0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
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0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, \
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0x0e, 0x1f, 0xba, 0x0e, 0x00, 0xb4, 0x09, 0xcd, \
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0x21, 0xb8, 0x01, 0x4c, 0xcd, 0x21, 0x54, 0x68, \
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0x69, 0x73, 0x20, 0x70, 0x72, 0x6f, 0x67, 0x72, \
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0x61, 0x6d, 0x20, 0x63, 0x61, 0x6e, 0x6e, 0x6f, \
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0x74, 0x20, 0x62, 0x65, 0x20, 0x72, 0x75, 0x6e, \
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0x20, 0x69, 0x6e, 0x20, 0x44, 0x4f, 0x53, 0x20, \
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0x6d, 0x6f, 0x64, 0x65, 0x2e, 0x0d, 0x0d, 0x0a, \
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0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 \
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}
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#define GRUB_PE32_MSDOS_STUB_SIZE 0x80
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/* According to the spec, the minimal alignment is 512 bytes...
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But some examples (such as EFI drivers in the Intel
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Sample Implementation) use 32 bytes (0x20) instead, and it seems
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to be working. For now, GRUB uses 512 bytes for safety. */
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#define GRUB_PE32_SECTION_ALIGNMENT 0x200
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#define GRUB_PE32_FILE_ALIGNMENT GRUB_PE32_SECTION_ALIGNMENT
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struct grub_pe32_coff_header
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{
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grub_uint16_t machine;
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grub_uint16_t num_sections;
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grub_uint32_t time;
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grub_uint32_t symtab_offset;
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grub_uint32_t num_symbols;
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grub_uint16_t optional_header_size;
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grub_uint16_t characteristics;
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};
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#define GRUB_PE32_MACHINE_I386 0x14c
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#define GRUB_PE32_RELOCS_STRIPPED 0x0001
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#define GRUB_PE32_EXECUTABLE_IMAGE 0x0002
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#define GRUB_PE32_LINE_NUMS_STRIPPED 0x0004
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#define GRUB_PE32_LOCAL_SYMS_STRIPPED 0x0008
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#define GRUB_PE32_AGGRESSIVE_WS_TRIM 0x0010
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#define GRUB_PE32_LARGE_ADDRESS_AWARE 0x0020
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#define GRUB_PE32_16BIT_MACHINE 0x0040
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#define GRUB_PE32_BYTES_REVERSED_LO 0x0080
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#define GRUB_PE32_32BIT_MACHINE 0x0100
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#define GRUB_PE32_DEBUG_STRIPPED 0x0200
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#define GRUB_PE32_REMOVABLE_RUN_FROM_SWAP 0x0400
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#define GRUB_PE32_SYSTEM 0x1000
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#define GRUB_PE32_DLL 0x2000
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#define GRUB_PE32_UP_SYSTEM_ONLY 0x4000
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#define GRUB_PE32_BYTES_REVERSED_HI 0x8000
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struct grub_pe32_data_directory
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{
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grub_uint32_t rva;
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grub_uint32_t size;
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};
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struct grub_pe32_optional_header
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{
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grub_uint16_t magic;
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grub_uint8_t major_linker_version;
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grub_uint8_t minor_linker_version;
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grub_uint32_t code_size;
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grub_uint32_t data_size;
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grub_uint32_t bss_size;
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grub_uint32_t entry_addr;
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grub_uint32_t code_base;
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grub_uint32_t data_base;
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grub_uint32_t image_base;
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grub_uint32_t section_alignment;
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grub_uint32_t file_alignment;
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grub_uint16_t major_os_version;
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grub_uint16_t minor_os_version;
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grub_uint16_t major_image_version;
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grub_uint16_t minor_image_version;
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grub_uint16_t major_subsystem_version;
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grub_uint16_t minor_subsystem_version;
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grub_uint32_t reserved;
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grub_uint32_t image_size;
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grub_uint32_t header_size;
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grub_uint32_t checksum;
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grub_uint16_t subsystem;
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grub_uint16_t dll_characteristics;
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grub_uint32_t stack_reserve_size;
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grub_uint32_t stack_commit_size;
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grub_uint32_t heap_reserve_size;
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grub_uint32_t heap_commit_size;
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grub_uint32_t loader_flags;
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grub_uint32_t num_data_directories;
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/* Data directories. */
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struct grub_pe32_data_directory export_table;
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struct grub_pe32_data_directory import_table;
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struct grub_pe32_data_directory resource_table;
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struct grub_pe32_data_directory exception_table;
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struct grub_pe32_data_directory certificate_table;
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struct grub_pe32_data_directory base_relocation_table;
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struct grub_pe32_data_directory debug;
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struct grub_pe32_data_directory architecture;
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struct grub_pe32_data_directory global_ptr;
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struct grub_pe32_data_directory tls_table;
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struct grub_pe32_data_directory load_config_table;
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struct grub_pe32_data_directory bound_import;
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struct grub_pe32_data_directory iat;
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struct grub_pe32_data_directory delay_import_descriptor;
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struct grub_pe32_data_directory com_runtime_header;
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struct grub_pe32_data_directory reserved_entry;
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};
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#define GRUB_PE32_PE32_MAGIC 0x10b
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#define GRUB_PE32_SUBSYSTEM_EFI_APPLICATION 10
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#define GRUB_PE32_NUM_DATA_DIRECTORIES 16
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struct grub_pe32_section_table
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{
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char name[8];
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grub_uint32_t virtual_size;
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grub_uint32_t virtual_address;
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grub_uint32_t raw_data_size;
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grub_uint32_t raw_data_offset;
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grub_uint32_t relocations_offset;
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grub_uint32_t line_numbers_offset;
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grub_uint16_t num_relocations;
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grub_uint16_t num_line_numbers;
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grub_uint32_t characteristics;
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};
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#define GRUB_PE32_SCN_CNT_CODE 0x00000020
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#define GRUB_PE32_SCN_CNT_INITIALIZED_DATA 0x00000040
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#define GRUB_PE32_SCN_MEM_DISCARDABLE 0x02000000
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#define GRUB_PE32_SCN_MEM_EXECUTE 0x20000000
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#define GRUB_PE32_SCN_MEM_READ 0x40000000
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#define GRUB_PE32_SCN_MEM_WRITE 0x80000000
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struct grub_pe32_header
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{
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/* This should be filled in with GRUB_PE32_MSDOS_STUB. */
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grub_uint8_t msdos_stub[GRUB_PE32_MSDOS_STUB_SIZE];
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/* This is always PE\0\0. */
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char signature[4];
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/* The COFF file header. */
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struct grub_pe32_coff_header coff_header;
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/* The Optional header. */
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struct grub_pe32_optional_header optional_header;
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};
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struct grub_pe32_fixup_block
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{
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grub_uint32_t page_rva;
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grub_uint32_t block_size;
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grub_uint16_t entries[0];
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};
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#define GRUB_PE32_FIXUP_ENTRY(type, offset) (((type) << 12) | (offset))
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#define GRUB_PE32_REL_BASED_ABSOLUTE 0
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#define GRUB_PE32_REL_BASED_HIGHLOW 3
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#endif /* ! GRUB_EFI_PE32_HEADER */
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