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52 lines
2.5 KiB
C#
52 lines
2.5 KiB
C#
namespace BurnOutSharp.Models.PortableExecutable
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{
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/// <summary>
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/// The base relocation table contains entries for all base relocations in
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/// the image. The Base Relocation Table field in the optional header data
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/// directories gives the number of bytes in the base relocation table. For
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/// more information, see Optional Header Data Directories (Image Only).
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/// The base relocation table is divided into blocks. Each block represents
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/// the base relocations for a 4K page. Each block must start on a 32-bit boundary.
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///
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/// The loader is not required to process base relocations that are resolved by
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/// the linker, unless the load image cannot be loaded at the image base that is
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/// specified in the PE header.
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///
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/// To apply a base relocation, the difference is calculated between the preferred
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/// base address and the base where the image is actually loaded. If the image is
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/// loaded at its preferred base, the difference is zero and thus the base
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/// relocations do not have to be applied.
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/// </summary>
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/// <see href="https://learn.microsoft.com/en-us/windows/win32/debug/pe-format"/>
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public class BaseRelocationBlock
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{
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/// <summary>
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/// The image base plus the page RVA is added to each offset to create
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/// the VA where the base relocation must be applied.
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/// </summary>
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public uint PageRVA;
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/// <summary>
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/// The total number of bytes in the base relocation block, including
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/// the Page RVA and Block Size fields and the Type/Offset fields that
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/// follow.
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/// </summary>
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public uint BlockSize;
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/// <summary>
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/// The Block Size field is then followed by any number of Type or Offset
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/// field entries. Each entry is a WORD (2 bytes) and has the following
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/// structure:
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///
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/// 4 bits - Type - Stored in the high 4 bits of the WORD, a value
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/// that indicates the type of base relocation to be
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/// applied. For more information, see <see cref="BaseRelocationTypes"/>
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/// 12 bits - Offset - Stored in the remaining 12 bits of the WORD, an
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/// offset from the starting address that was specified
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/// in the Page RVA field for the block. This offset
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/// specifies where the base relocation is to be applied.
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/// </summary>
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public BaseRelocationTypeOffsetFieldEntry[] TypeOffsetFieldEntries;
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}
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}
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