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using LibHac.Common.FixedArrays;
using LibHac.Fs;
using LibHac.Loader;
using LibHac.Tools.FsSystem;
using Ryujinx.Common.Logging;
using System;
using System.Text;
using System.Text.RegularExpressions;
namespace Ryujinx.HLE.Loaders.Executables
{
partial class NsoExecutable : IExecutable
{
public byte[] Program { get; }
public Span<byte> Text => Program.AsSpan((int)TextOffset, (int)TextSize);
public Span<byte> Ro => Program.AsSpan((int)RoOffset, (int)RoSize);
public Span<byte> Data => Program.AsSpan((int)DataOffset, (int)DataSize);
public uint TextOffset { get; }
public uint RoOffset { get; }
public uint DataOffset { get; }
public uint BssOffset => DataOffset + (uint)Data.Length;
public uint TextSize { get; }
public uint RoSize { get; }
public uint DataSize { get; }
public uint BssSize { get; }
public string Name;
public Array32<byte> BuildId;
[GeneratedRegex(@"[a-z]:[\\/][ -~]{5,}\.nss", RegexOptions.IgnoreCase | RegexOptions.CultureInvariant)]
private static partial Regex ModuleRegex();
[GeneratedRegex(@"sdk_version: ([0-9.]*)")]
private static partial Regex FsSdkRegex();
[GeneratedRegex(@"SDK MW[ -~]*")]
private static partial Regex SdkMwRegex();
public NsoExecutable(IStorage inStorage, string name = null)
{
NsoReader reader = new NsoReader();
reader.Initialize(inStorage.AsFile(OpenMode.Read)).ThrowIfFailure();
TextOffset = reader.Header.Segments[0].MemoryOffset;
RoOffset = reader.Header.Segments[1].MemoryOffset;
DataOffset = reader.Header.Segments[2].MemoryOffset;
BssSize = reader.Header.BssSize;
reader.GetSegmentSize(NsoReader.SegmentType.Data, out uint uncompressedSize).ThrowIfFailure();
Program = new byte[DataOffset + uncompressedSize];
TextSize = DecompressSection(reader, NsoReader.SegmentType.Text, TextOffset);
RoSize = DecompressSection(reader, NsoReader.SegmentType.Ro, RoOffset);
DataSize = DecompressSection(reader, NsoReader.SegmentType.Data, DataOffset);
Name = name;
BuildId = reader.Header.ModuleId;
PrintRoSectionInfo();
}
private uint DecompressSection(NsoReader reader, NsoReader.SegmentType segmentType, uint offset)
{
reader.GetSegmentSize(segmentType, out uint uncompressedSize).ThrowIfFailure();
var span = Program.AsSpan((int)offset, (int)uncompressedSize);
reader.ReadSegment(segmentType, span).ThrowIfFailure();
return uncompressedSize;
}
private void PrintRoSectionInfo()
{
string rawTextBuffer = Encoding.ASCII.GetString(Ro);
StringBuilder stringBuilder = new StringBuilder();
string modulePath = null;
if (BitConverter.ToInt32(Ro.Slice(0, 4)) == 0)
{
int length = BitConverter.ToInt32(Ro.Slice(4, 4));
if (length > 0)
{
modulePath = Encoding.UTF8.GetString(Ro.Slice(8, length));
}
}
if (string.IsNullOrEmpty(modulePath))
{
Match moduleMatch = ModuleRegex().Match(rawTextBuffer);
if (moduleMatch.Success)
{
modulePath = moduleMatch.Value;
}
}
stringBuilder.AppendLine($" Module: {modulePath}");
Match fsSdkMatch = FsSdkRegex().Match(rawTextBuffer);
if (fsSdkMatch.Success)
{
stringBuilder.AppendLine($" FS SDK Version: {fsSdkMatch.Value.Replace("sdk_version: ", "")}");
}
MatchCollection sdkMwMatches = SdkMwRegex().Matches(rawTextBuffer);
if (sdkMwMatches.Count != 0)
{
string libHeader = " SDK Libraries: ";
string libContent = string.Join($"\n{new string(' ', libHeader.Length)}", sdkMwMatches);
stringBuilder.AppendLine($"{libHeader}{libContent}");
}
if (stringBuilder.Length > 0)
{
Logger.Info?.Print(LogClass.Loader, $"{Name}:\n{stringBuilder.ToString().TrimEnd('\r', '\n')}");
}
}
}
}
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