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1. Optimization for WIMBOOT mode.
2. Add WIMBOOT for UEFI mode.
This commit is contained in:
longpanda
195
wimboot/wimboot-2.7.3/src/peloader.h
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195
wimboot/wimboot-2.7.3/src/peloader.h
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#ifndef _PELOADER_H
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#define _PELOADER_H
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/*
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* Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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/**
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* @file
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*
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* PE image loader
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*
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*/
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#include <stdint.h>
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#include "wimboot.h"
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/** DOS MZ header */
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struct mz_header {
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/** Magic number */
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uint16_t magic;
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/** Bytes on last page of file */
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uint16_t cblp;
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/** Pages in file */
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uint16_t cp;
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/** Relocations */
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uint16_t crlc;
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/** Size of header in paragraphs */
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uint16_t cparhdr;
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/** Minimum extra paragraphs needed */
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uint16_t minalloc;
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/** Maximum extra paragraphs needed */
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uint16_t maxalloc;
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/** Initial (relative) SS value */
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uint16_t ss;
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/** Initial SP value */
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uint16_t sp;
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/** Checksum */
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uint16_t csum;
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/** Initial IP value */
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uint16_t ip;
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/** Initial (relative) CS value */
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uint16_t cs;
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/** File address of relocation table */
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uint16_t lfarlc;
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/** Overlay number */
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uint16_t ovno;
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/** Reserved words */
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uint16_t res[4];
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/** OEM identifier (for oeminfo) */
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uint16_t oemid;
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/** OEM information; oemid specific */
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uint16_t oeminfo;
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/** Reserved words */
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uint16_t res2[10];
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/** File address of new exe header */
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uint32_t lfanew;
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} __attribute__ (( packed ));
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/** MZ header magic */
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#define MZ_HEADER_MAGIC 0x5a4d
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/** COFF file header */
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struct coff_header {
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/** Magic number */
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uint16_t magic;
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/** Number of sections */
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uint16_t num_sections;
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/** Timestamp (seconds since the Epoch) */
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uint32_t timestamp;
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/** Offset to symbol table */
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uint32_t symtab;
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/** Number of symbol table entries */
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uint32_t num_syms;
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/** Length of optional header */
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uint16_t opthdr_len;
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/** Flags */
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uint16_t flags;
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} __attribute__ (( packed ));
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/** COFF section */
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struct coff_section {
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/** Section name */
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char name[8];
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/** Physical address or virtual length */
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union {
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/** Physical address */
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uint32_t physical;
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/** Virtual length */
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uint32_t virtual_len;
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} misc;
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/** Virtual address */
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uint32_t virtual;
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/** Length of raw data */
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uint32_t raw_len;
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/** Offset to raw data */
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uint32_t raw;
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/** Offset to relocations */
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uint32_t relocations;
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/** Offset to line numbers */
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uint32_t line_numbers;
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/** Number of relocations */
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uint16_t num_relocations;
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/** Number of line numbers */
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uint16_t num_line_numbers;
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/** Flags */
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uint32_t flags;
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} __attribute__ (( packed ));
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/** PE file header */
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struct pe_header {
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/** Magic number */
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uint32_t magic;
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/** COFF header */
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struct coff_header coff;
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} __attribute__ (( packed ));
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/** PE header magic */
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#define PE_HEADER_MAGIC 0x00004550
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/** PE optional header */
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struct pe_optional_header {
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/** Magic number */
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uint16_t magic;
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/** Major linker version */
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uint8_t linker_major;
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/** Minor linker version */
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uint8_t linker_minor;
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/** Length of code */
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uint32_t text_len;
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/** Length of initialised data */
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uint32_t data_len;
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/** Length of uninitialised data */
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uint32_t bss_len;
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/** Entry point */
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uint32_t entry;
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/** Base of code */
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uint32_t text;
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/** Base of data */
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uint32_t data;
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/** Image base address */
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uint32_t base;
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/** Section alignment */
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uint32_t section_align;
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/** File alignment */
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uint32_t file_align;
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/** Major operating system version */
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uint16_t os_major;
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/** Minor operating system version */
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uint16_t os_minor;
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/** Major image version */
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uint16_t image_major;
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/** Minor image version */
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uint16_t image_minor;
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/** Major subsystem version */
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uint16_t subsystem_major;
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/** Minor subsystem version */
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uint16_t subsystem_minor;
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/** Win32 version */
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uint32_t win32_version;
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/** Size of image */
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uint32_t len;
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/** Size of headers */
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uint32_t header_len;
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/* Plus extra fields that we don't care about */
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} __attribute__ (( packed ));
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/** A loaded PE image */
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struct loaded_pe {
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/** Base address */
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void *base;
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/** Length */
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size_t len;
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/** Entry point */
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void ( * entry ) ( struct bootapp_descriptor *bootapp );
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};
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extern int load_pe ( const void *data, size_t len, struct loaded_pe *pe );
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#endif /* _PELOADER_H */
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