internal static byte[] SerializeModuleAsBitcode(this Module module)
{
LLVMMemoryBufferRef bufferRef = module.WriteBitcodeToMemoryBuffer();
byte[] serialized = CopyBytesFromMemoryBufferRef(bufferRef);
LLVMSharp.LLVM.DisposeMemoryBuffer(bufferRef);
return(serialized);
}
private static byte[] CopyBytesFromMemoryBufferRef(LLVMMemoryBufferRef bufferRef)
{
IntPtr start = LLVMSharp.LLVM.GetBufferStart(bufferRef);
var size = LLVMSharp.LLVM.GetBufferSize(bufferRef);
byte[] copy = new byte[size];
Marshal.Copy(start, copy, 0, size);
return(copy);
}
internal static Module DeserializeModuleAsBitcode(this byte[] moduleBytes, LLVMContextRef contextRef)
{
LLVMMemoryBufferRef bufferRef = CreateMemoryBufferRefFromBytes(moduleBytes);
LLVMModuleRef moduleRef;
try
{
if (LLVMSharp.LLVM.ParseBitcodeInContext2(contextRef, bufferRef, out moduleRef) != false)
{
throw new ArgumentException("Failed to load bitcode module", nameof(moduleBytes));
}
return(moduleRef.ModuleFromModuleRef());
}
finally
{
LLVMSharp.LLVM.DisposeMemoryBuffer(bufferRef);
}
}
public static extern int ParseBitcode(LLVMMemoryBufferRef* MemBuf, ref LLVMModuleRef * OutModule, [MarshalAs(UnmanagedType.LPStr)] ref StringBuilder OutMessage);
public static extern LLVMObjectFileRef* CreateObjectFile(LLVMMemoryBufferRef* MemBuf);
public static extern void DisposeMemoryBuffer(LLVMMemoryBufferRef* MemBuf);
public static extern int CreateMemoryBufferWithSTDIN(ref LLVMMemoryBufferRef * OutMemBuf, [MarshalAs(UnmanagedType.LPStr)] ref StringBuilder OutMessage);
public static extern int CreateMemoryBufferWithContentsOfFile([In][MarshalAs(UnmanagedType.LPStr)] string Path, ref LLVMMemoryBufferRef * OutMemBuf, [MarshalAs(UnmanagedType.LPStr)] ref StringBuilder OutMessage);
public DisposableBuffer(LLVMMemoryBufferRef buffer) => this.buffer = buffer;
internal MemoryBuffer(LLVMMemoryBufferRef memoryBuffer) => _memoryBuffer = memoryBuffer;
internal MemoryBuffer(LLVMMemoryBufferRef bufferHandle)
{
bufferHandle.ValidateNotDefault(nameof(bufferHandle));
BufferHandle_ = bufferHandle;
}
internal MemoryBuffer(LLVMMemoryBufferRef bufferHandle)
{
BufferHandle_ = bufferHandle;
}
internal void Release() => _memoryBuffer = new LLVMMemoryBufferRef();
public static extern int GetBitcodeModuleInContext(LLVMContextRef* ContextRef, LLVMMemoryBufferRef* MemBuf, ref LLVMModuleRef * OutM, [MarshalAs(UnmanagedType.LPStr)] ref StringBuilder OutMessage);
/// <summary>Initializes a new instance of the <see cref="MemoryBuffer"/> class from a byte array</summary>
/// <param name="memoryBufferRef">An instance of the LLVMMemoryBufferRef type that will be tracked by this object.</param>
public MemoryBuffer(LLVMMemoryBufferRef memoryBufferRef)
{
BufferHandle = memoryBufferRef;
}
public static extern int GetBitcodeModuleProvider(LLVMMemoryBufferRef* MemBuf, ref LLVMModuleProviderRef * OutMP, [MarshalAs(UnmanagedType.LPStr)] ref StringBuilder OutMessage);
private static extern LLVMSharedObjectBufferRef LLVMOrcMakeSharedObjectBuffer(LLVMMemoryBufferRef ObjBuffer);
