public void Run()
{
foreach (var file in Files)
{
using var stream = new FileStream(file, FileMode.Open, FileAccess.Read);
if (ArArchiveFile.IsAr(stream))
{
var options = new ArArchiveFileReaderOptions(ArArchiveKind.GNU);
var archive = ArArchiveFile.Read(stream, options);
foreach (var objFile in archive.Files)
{
if (objFile is ArElfFile elfFile)
{
ProcessElf(objFile.Name, elfFile.ElfObjectFile);
}
}
}
else if (ElfObjectFile.IsElf(stream))
{
var elfObjectFile = ElfObjectFile.Read(stream, new ElfReaderOptions()
{
ReadOnly = true
});
ProcessElf(Path.GetFileName(file), elfObjectFile);
}
}
}
public void CheckLibraryWithELF()
{
var cppName = "helloworld";
var cppObj = $"{cppName}.o";
var cppLib = $"lib{cppName}.a";
File.Delete(cppObj);
File.Delete(cppLib);
LinuxUtil.RunLinuxExe("gcc", $"{cppName}.cpp -c -o {cppObj}");
LinuxUtil.RunLinuxExe("ar", $"rcs {cppLib} {cppObj}");
using (var stream = new FileStream(cppLib, FileMode.Open, FileAccess.Read))
{
Assert.True(ArArchiveFile.IsAr(stream));
var arFile = ArArchiveFile.Read(stream, new ArArchiveFileReaderOptions(ArArchiveKind.GNU)
{
ProcessObjectFiles = false
});
var elfFile = arFile.Files.FirstOrDefault(x => x.Name == cppObj);
Assert.NotNull(elfFile, $"Unable to find {cppObj} file in {cppLib}");
Assert.NotNull(arFile.SymbolTable, $"Unable to find symbol table in {cppLib}");
Assert.AreEqual(1, arFile.SymbolTable.Symbols.Count, "Invalid number of symbols in Symbol table");
Assert.AreEqual("main", arFile.SymbolTable.Symbols[0].Name, "Invalid symbol found");
Assert.AreEqual(elfFile, arFile.SymbolTable.Symbols[0].File, "Invalid symbol to file found");
var outStream = new MemoryStream();
arFile.Write(outStream);
var newArray = outStream.ToArray();
outStream.Position = 0;
var cppLibCopy = $"lib{cppName}_copy.a";
using (var copyStream = new FileStream(cppLibCopy, FileMode.Create, FileAccess.Write))
{
outStream.CopyTo(copyStream);
}
var originalStream = new MemoryStream();
stream.Position = 0;
stream.CopyTo(originalStream);
var originalArray = originalStream.ToArray();
Assert.AreEqual(originalArray, newArray, $"Non binary matching between file {cppLib} and {cppLibCopy}");
}
}
public void CheckInvalidHeader()
{
// Incorrect magic length
{
var stream = new MemoryStream(new byte[] { 1, 2, 3, 4 });
Assert.False(ArArchiveFile.IsAr(stream, out var diagnostics));
ExpectDiagnostics(diagnostics, DiagnosticId.AR_ERR_InvalidMagicLength);
}
// Correct length, magic invalid
{
var stream = new MemoryStream(new byte[]
{
(byte)'!',
(byte)'<',
(byte)'a',
(byte)'r',
(byte)'c',
(byte)'h',
(byte)'>',
(byte)'?',
});
Assert.False(ArArchiveFile.IsAr(stream, out var diagnostics));
ExpectDiagnostics(diagnostics, DiagnosticId.AR_ERR_MagicNotFound);
}
// Valid
{
var stream = new MemoryStream(new byte[]
{
(byte)'!',
(byte)'<',
(byte)'a',
(byte)'r',
(byte)'c',
(byte)'h',
(byte)'>',
(byte)'\n',
});
Assert.True(ArArchiveFile.IsAr(stream, out var diagnostics));
ExpectNoDiagnostics(diagnostics);
}
}