public override Stream RequestCodeStream() { LinkerStream stream = base.RequestCodeStream() as LinkerStream; VirtualMemoryStream vms = (VirtualMemoryStream)stream.BaseStream; if (address == IntPtr.Zero) { address = new IntPtr(vms.Base.ToInt64() + vms.Position); } return(stream); }
/// <summary> /// Allocates a stream of the specified size from the section. /// </summary> /// <param name="size">The size.</param> /// <param name="alignment">The alignment.</param> /// <returns></returns> public Stream Allocate(int size, int alignment) { Stream stream = this.stream; if (stream == null) { // Request 4Mb of memory VirtualMemoryStream vms = new VirtualMemoryStream(global::Mosa.Internal.Runtime.MemoryPageManager, 1024 * 1024 * 4); // Save the stream for further references this.stream = stream = vms; base.VirtualAddress = vms.Base; } if (size != 0 && size > (stream.Length - stream.Position)) throw new OutOfMemoryException(@"Not enough space in section to allocate symbol."); return stream; }
/// <summary> /// Allocates a stream of the specified size from the section. /// </summary> /// <param name="size">The size.</param> /// <param name="alignment">The alignment.</param> /// <returns></returns> public Stream Allocate(int size, int alignment) { Stream stream = this.stream; if (null == stream) { // Request 64K of memory VirtualMemoryStream vms = new VirtualMemoryStream(global::Mosa.Vm.Runtime.MemoryPageManager, 16 * 4096); // Save the stream for further references this.stream = stream = vms; base.VirtualAddress = vms.Base; } if (size != 0 && size > (stream.Length - stream.Position)) throw new OutOfMemoryException(@"Not enough space in section to allocate symbol."); return stream; }
/// <summary> /// Allocates a symbol of the given name in the specified section. /// </summary> /// <param name="name">The name of the symbol.</param> /// <param name="section">The executable section to allocate from.</param> /// <param name="size">The number of bytes to allocate. If zero, indicates an unknown amount of memory is required.</param> /// <param name="alignment">The alignment. A value of zero indicates the use of a default alignment for the section.</param> /// <returns> /// A stream, which can be used to populate the section. /// </returns> public override Stream Allocate(string name, SectionKind section, int size, int alignment) { LinkerStream stream = (LinkerStream)base.Allocate(name, section, size, alignment); try { VirtualMemoryStream vms = (VirtualMemoryStream)stream.BaseStream; LinkerSymbol symbol = GetSymbol(name); symbol.VirtualAddress = new IntPtr(vms.Base.ToInt64() + vms.Position); Trace.WriteLine("Symbol " + name + " located at 0x" + symbol.VirtualAddress.ToInt32().ToString("x08")); } catch { stream.Dispose(); throw; } return(stream); }