static ILoaderResult Load(string input, AssemblerPackageOutputType inputType)
{
if (!System.IO.File.Exists(input))
{
throw new FileNotFoundException($"Source input file {input} not found.", input);
}
// Loader Stage 1 - read file
ILoaderResult loaded;
using (var fs = new FileStream(input, FileMode.Open, FileAccess.Read, FileShare.Read))
{
switch (inputType)
{
case AssemblerPackageOutputType.Elf32:
loaded = new LoaderElf32(fs).LoadImage();
break;
case AssemblerPackageOutputType.Elf64:
loaded = new LoaderElf64(fs).LoadImage();
break;
default:
throw new InvalidOperationException($"Unknown packaging format: {inputType}");
}
}
return(loaded);
}
static ICompilationResult Assemble(string output, AssemblerPackageOutputType outputType, string format, string input)
{
if (!System.IO.File.Exists(input))
{
return(CompilationResultBase.Error($"Source input file {input} not found."));
}
if (System.IO.File.Exists(output))
{
Console.Error.WriteLine($"Executable output file {output} already exists.");
// DEBUG
System.IO.File.Delete(output);
//return -4;
}
// Compile.
ICompilationResult compilation;
{
Console.Out.WriteLine($"Compiling source file: {input}");
IBytecodeCompiler?compiler = null;
switch (outputType)
{
case AssemblerPackageOutputType.Elf32:
Console.Out.WriteLine($"Packaging bytecode as: {Enum.GetName(typeof(AssemblerPackageOutputType), outputType)}");
compiler = new BytecodeCompiler <UInt32>();
break;
case AssemblerPackageOutputType.Elf64:
Console.Out.WriteLine($"Packaging bytecode as: {Enum.GetName(typeof(AssemblerPackageOutputType), outputType)}");
compiler = new BytecodeCompiler <UInt64>();
break;
default:
Console.Error.WriteLine($"Unsupported assembler output type {outputType}.");
System.Environment.Exit(-5);
return(null);
}
compilation = compiler.Compile(input);
if (compilation.Errors.Count > 0)
{
Console.Error.WriteLine($"Compilation failed with {compilation.Errors.Count} errors.");
return(compilation);
}
}
// Package.
IPackager packager;
using (var fs = new FileStream(output, FileMode.Create, FileAccess.Write, FileShare.None, 4096, FileOptions.SequentialScan))
{
switch (outputType)
{
case AssemblerPackageOutputType.AOut32:
packager = new PackagerAOut32((CompilationResult32)compilation);
packager.Write(fs);
break;
case AssemblerPackageOutputType.Elf32:
packager = new PackagerElf32((CompilationResult32)compilation);
packager.Write(fs);
break;
case AssemblerPackageOutputType.Elf64:
packager = new PackagerElf64((CompilationResult64)compilation);
packager.Write(fs);
break;
default:
throw new InvalidOperationException($"Unknown packaging format: {outputType}");
}
fs.Flush();
fs.Close();
}
return(compilation);
}
