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83 lines
3.4 KiB
C#
83 lines
3.4 KiB
C#
using System.Runtime.InteropServices;
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namespace BurnOutSharp.Models.LinearExecutable
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{
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/// <summary>
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/// The object table contains information that describes each segment in
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/// an executable file. This information includes segment length, segment
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/// type, and segment-relocation data. The following list summarizes the
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/// values found in in the segment table (the locations are relative to
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/// the beginning of each entry):
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/// </summary>
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/// <remarks>
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/// Entries in the Object Table are numbered starting from one.
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/// </remarks>
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/// <see href="https://faydoc.tripod.com/formats/exe-LE.htm"/>
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/// <see href="http://www.edm2.com/index.php/LX_-_Linear_eXecutable_Module_Format_Description"/>
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[StructLayout(LayoutKind.Sequential)]
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public class ObjectTableEntry
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{
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/// <summary>
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/// Virtual memory size.
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/// </summary>
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/// <remarks>
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/// This is the size of the object that will be allocated when the object
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/// is loaded. The object's virtual size (rounded up to the page size value)
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/// must be greater than or equal to the total size of the pages in the EXE
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/// file for the object. This memory size must also be large enough to
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/// contain all of the iterated data and uninitialized data in the EXE file.
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/// </remarks>
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public uint VirtualSegmentSize;
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/// <summary>
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/// Relocation Base Address.
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/// </summary>
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/// <remarks>
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/// The relocation base address the object is currently relocated to. If the
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/// internal relocation fixups for the module have been removed, this is the
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/// address the object will be allocated at by the loader.
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/// </remarks>
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public uint RelocationBaseAddress;
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/// <summary>
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/// Flag bits for the object.
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/// </summary>
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public ObjectFlags ObjectFlags;
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/// <summary>
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/// Object Page Table Index.
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/// </summary>
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/// <remarks>
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/// This specifies the number of the first object page table entry for this object.
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/// The object page table specifies where in the EXE file a page can be found for
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/// a given object and specifies per-page attributes.
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///
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/// The object table entries are ordered by logical page in the object table. In
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/// other words the object table entries are sorted based on the object page table
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/// index value.
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/// </remarks>
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public uint PageTableIndex;
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/// <summary>
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/// # of object page table entries for this object.
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/// </summary>
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/// <remarks>
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/// Any logical pages at the end of an object that do not have an entry in the object
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/// page table associated with them are handled as zero filled or invalid pages by
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/// the loader.
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///
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/// When the last logical pages of an object are not specified with an object page
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/// table entry, they are treated as either zero filled pages or invalid pages based
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/// on the last entry in the object page table for that object. If the last entry
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/// was neither a zero filled or invalid page, then the additional pages are treated
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/// as zero filled pages.
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/// </remarks>
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public uint PageTableEntries;
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/// <summary>
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/// Reserved for future use. Must be set to zero.
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/// </summary>
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public uint Reserved;
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}
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}
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