75 lines
2.5 KiB
C#
75 lines
2.5 KiB
C#
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///////////////////////////////////////////////////////////////////////////////
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//
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// Microsoft Research Singularity
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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///////////////////////////////////////////////////////////////////////////////
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//
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// Simple PE Loader for Singularity
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//
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// Currently does not support:
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// x64
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// sections loaded at separate addresses
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// loading at preferred address
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// #define verbose
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namespace Microsoft.Singularity.Loader
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{
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using System;
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using System.Diagnostics;
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using System.Runtime.InteropServices;
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using System.Threading;
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using Microsoft.Singularity;
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using Microsoft.Singularity.Io;
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[CLSCompliant(false)]
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internal struct SectionHeader
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{
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internal const uint IMAGE_SCN_MEM_DISCARDABLE = 0x02000000; // Can be discarded.
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internal const uint IMAGE_SCN_MEM_READ = 0x40000000; // Is readable.
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internal const uint IMAGE_SCN_MEM_WRITE = 0x80000000; // Is writeable.
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// State
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internal readonly String name;
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internal readonly uint virtualSize;
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internal readonly uint virtualAddress;
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internal readonly uint sizeOfRawData;
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internal readonly uint pointerToRawData;
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internal readonly uint characteristics;
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internal SectionHeader(IoMemory mem, ref int offset)
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{
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if (offset + 40 > mem.Length) {
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Error.AccessOutOfRange();
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}
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name = mem.ReadAsciiZeroString(offset, 8);
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virtualSize = mem.Read32Unchecked(offset + 8);
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virtualAddress = mem.Read32Unchecked(offset + 12);
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sizeOfRawData = mem.Read32Unchecked(offset + 16);
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pointerToRawData = mem.Read32Unchecked(offset + 20);
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characteristics = mem.Read32Unchecked(offset + 36);
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offset += 40;
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}
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[Conditional("DEBUG")]
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internal void DumpToStream()
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{
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Tracing.Log(Tracing.Debug,
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" {0:x8}..{1:x8} [{2:x8}..{3:x8}] char={4:x8}",
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virtualAddress, virtualAddress + virtualSize,
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pointerToRawData, pointerToRawData + sizeOfRawData,
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characteristics);
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}
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internal bool IsDiscardable
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{
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get { return ((characteristics & IMAGE_SCN_MEM_DISCARDABLE) != 0); }
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}
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}
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}
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