/// <summary>
/// Performs the link.
/// </summary>
/// <param name="TheLibrary">The root library to link.</param>
/// <returns>CompileResult.OK if the link succeeded. Otherwise, CompileResult.Fail.</returns>
public static CompileResult Link(IL.ILLibrary TheLibrary, bool dependency = false, string Name = null)
{
bool OK = true;
// If: Link to ELF and Libraries
// - Link sub-libs to .a files
// - Link main lib to .elf file (if present)
// If: Link to ISO
// - Generate basic link-script
// - Generate full link-script by inserting necessary file location instructions for all object files
// - Execute ld to build bin file
// - Execute ISO9660Generator to build .ISO file
if (Options.LinkMode == Options.LinkModes.ELF)
{
// Check for main method. If found, that library gets linked to Executable not Shared Lib
List<string> depLibNames = new List<string>();
foreach (IL.ILLibrary depLib in TheLibrary.Dependencies)
{
string depLibName = Utilities.CleanFileName(depLib.TheAssembly.GetName().Name);
if (Options.ShortenDependencyNames)
{
if (!DependencyNameMapping.ContainsKey(depLibName))
{
DependencyNameMapping.Add(depLibName, (NameGenerator++).ToString());
}
depLibName = DependencyNameMapping[depLibName];
}
depLibNames.Add(depLibName);
OK = OK && (Link(depLib, true, depLibName) == CompileResult.OK);
if (!OK)
{
break;
}
}
if (!OK)
{
return CompileResult.Fail;
}
List<ASM.ASMBlock> SequencedASMBlocks = new List<ASM.ASMBlock>();
SequencedASMBlocks.AddRange(TheLibrary.TheASMLibrary.ASMBlocks);
SequencedASMBlocks.Sort(GetOrder);
SequencedASMBlocks.ForEach(delegate(ASM.ASMBlock block)
{
if (block != null && block.OriginMethodInfo != null)
{
DebugDataWriter.AddMethodMapping(block.OriginMethodInfo.ID, block.ASMOutputFilePath);
}
});
// Find start method if any, use as ENTRY point
bool ExecutableOutput = false;
string EntryPoint = null;
if (IL.ILLibrary.SpecialMethods.ContainsKey(typeof(Attributes.MainMethodAttribute)))
{
Types.MethodInfo mainMethodInfo = IL.ILLibrary.SpecialMethods[typeof(Attributes.MainMethodAttribute)].First();
IL.ILBlock mainMethodBlock = TheLibrary.GetILBlock(mainMethodInfo, false);
if (mainMethodBlock != null)
{
ExecutableOutput = true;
EntryPoint = mainMethodInfo.ID;
}
}
if (Options.ShortenDependencyNames && string.IsNullOrWhiteSpace(Name))
{
Name = "Driver";
}
string AssemblyName = string.IsNullOrWhiteSpace(Name) ? Utilities.CleanFileName(TheLibrary.TheAssembly.GetName().Name) : Name;
DebugDataWriter.SaveDataFiles(Options.OutputPath, AssemblyName);
DebugDataWriter.SaveLibraryInfo(Options.OutputPath, TheLibrary);
LinkInformation LinkInfo = new LinkInformation()
{
ToolsPath = Options.ToolsPath,
LinkScriptCmdPath = Path.Combine(Options.OutputPath, @"DriversCompiler\" + AssemblyName + "_linker_command.txt"),
LinkScriptPath = Path.Combine(Options.OutputPath, @"DriversCompiler\" + AssemblyName + "_linker.ld"),
BinPath = Path.Combine(Options.OutputPath, "Output\\" + (ExecutableOutput ? AssemblyName + ".elf" : "Lib" + AssemblyName + ".a")),
MapPath = Path.Combine(Options.OutputPath, AssemblyName + ".map"),
ASMPath = Path.Combine(Options.OutputPath, AssemblyName + ".new.asm"),
LdWorkingDir = Path.Combine(Options.OutputPath, "") + "\\",
ExecutableOutput = ExecutableOutput,
EntryPoint = EntryPoint,
SequencedASMBlocks = SequencedASMBlocks,
depLibNames = depLibNames
};
if (!Directory.Exists(Path.GetDirectoryName(LinkInfo.BinPath)))
{
Directory.CreateDirectory(Path.GetDirectoryName(LinkInfo.BinPath));
}
OK = TargetArchitecture.TargetFunctions.LinkELF(TheLibrary, LinkInfo);
if (OK)
{
DebugDataWriter.ProcessMapFile(LinkInfo.MapPath);
}
}
else if (Options.LinkMode == Options.LinkModes.ISO)
{
List<ASM.ASMBlock> SequencedASMBlocks = new List<ASM.ASMBlock>();
List<IL.ILLibrary> FlattenedLibs = TheLibrary.Flatten();
foreach (IL.ILLibrary depLib in FlattenedLibs)
{
SequencedASMBlocks.AddRange(depLib.TheASMLibrary.ASMBlocks);
DebugDataWriter.SaveLibraryInfo(Options.OutputPath, depLib);
}
SequencedASMBlocks.Sort(GetOrder);
SequencedASMBlocks.ForEach(delegate(ASM.ASMBlock block)
{
if (block != null && block.OriginMethodInfo != null)
{
DebugDataWriter.AddMethodMapping(block.OriginMethodInfo.ID, block.ASMOutputFilePath);
}
});
string AssemblyName = Utilities.CleanFileName(TheLibrary.TheAssembly.GetName().Name);
DebugDataWriter.SaveDataFiles(Options.OutputPath, AssemblyName);
DebugDataWriter.SaveLibraryInfo(Options.OutputPath, TheLibrary);
LinkInformation LinkInfo = new LinkInformation()
{
ToolsPath = Options.ToolsPath,
ISOGenPath = Path.Combine(Options.ToolsPath, @"ISO9660Generator.exe"),
ISOToolsDirPath = Path.Combine(Options.ToolsPath, @"ISO"),
ISODirPath = Path.Combine(Options.OutputPath, @"DriversCompiler\ISO"),
LinkScriptPath = Path.Combine(Options.OutputPath, @"DriversCompiler\linker.ld"),
BinPath = Path.Combine(Options.OutputPath, @"DriversCompiler\ISO\Kernel.bin"),
ISOLinuxPath = Path.Combine(Options.OutputPath, @"DriversCompiler\ISO\" + (Options.BuildMode == Options.BuildModes.Debug ? "isolinux-debug.bin" : "isolinux.bin")),
ISOPath = Path.Combine(Options.OutputPath, AssemblyName + ".iso"),
MapPath = Path.Combine(Options.OutputPath, AssemblyName + ".map"),
ASMPath = Path.Combine(Options.OutputPath, AssemblyName + ".new.asm"),
LdWorkingDir = Path.Combine(Options.OutputPath, "DriversCompiler") + "\\",
SequencedASMBlocks = SequencedASMBlocks
};
if (Directory.Exists(LinkInfo.ISODirPath))
{
Directory.Delete(LinkInfo.ISODirPath, true);
}
CopyDirectory(LinkInfo.ISOToolsDirPath, LinkInfo.ISODirPath, true);
OK = TargetArchitecture.TargetFunctions.LinkISO(TheLibrary, LinkInfo);
if (OK)
{
DebugDataWriter.ProcessMapFile(LinkInfo.MapPath);
}
}
return OK ? CompileResult.OK : CompileResult.Fail;
}
