Ejemplo n.º 1
0
        public void Finalize(BasicBlocks basicBlocks)
        {
            foreach (var block in included)
            {
                if (!basicBlocks.Contains(block))
                    continue;

                Trace(block);
            }
        }
Ejemplo n.º 2
0
        private void EmitProtectedRegionTable()
        {
            var trace = CreateTraceLog("Regions");

            var protectedRegionTableSymbol = MethodCompiler.Linker.CreateSymbol(MethodCompiler.Method.FullName + Metadata.ProtectedRegionTable, SectionKind.ROData, NativeAlignment, 0);
            var writer = new EndianAwareBinaryWriter(protectedRegionTableSymbol.Stream, Architecture.Endianness);

            int sectioncount = 0;

            // 1. Number of Regions (dummy for now)
            writer.Write((uint)0);

            foreach (var region in MethodCompiler.ProtectedRegions)
            {
                var handler = (uint)codeEmitter.GetPosition(region.Handler.HandlerStart);

                if (trace.Active)
                {
                    trace.Log("Handler: " + region.Handler.TryStart.ToString("X4") + " to " + region.Handler.TryEnd.ToString("X4") + " Handler: " + region.Handler.HandlerStart.ToString("X4") + " Offset: [" + handler.ToString("X4") + "]");
                }

                List <Tuple <int, int> > sections = new List <Tuple <int, int> >();

                foreach (var block in region.IncludedBlocks)
                {
                    // Check if block continues to exist
                    if (!BasicBlocks.Contains(block))
                    {
                        continue;
                    }

                    int start = codeEmitter.GetPosition(block.Label);
                    int end   = codeEmitter.GetPosition(block.Label + 0x0F000000);

                    if (trace.Active)
                    {
                        trace.Log("   Block: " + block.ToString() + " [" + start.ToString() + "-" + end.ToString() + "]");
                    }

                    AddSection(sections, start, end);
                }

                foreach (var s in sections)
                {
                    int start = s.Item1;
                    int end   = s.Item2;

                    sectioncount++;

                    var name = MethodCompiler.Method.FullName + Metadata.ProtectedRegionTable + "$" + sectioncount.ToString();
                    var protectedRegionDefinition = CreateProtectedRegionDefinition(name, (uint)start, (uint)end, handler, region.Handler.HandlerType, region.Handler.Type);
                    MethodCompiler.Linker.Link(LinkType.AbsoluteAddress, NativePatchType, protectedRegionTableSymbol, (int)writer.Position, 0, protectedRegionDefinition, 0);
                    writer.WriteZeroBytes(TypeLayout.NativePointerSize);

                    if (trace.Active)
                    {
                        trace.Log("     Section: [" + start.ToString() + "-" + end.ToString() + "]");
                    }
                }
            }

            // 1. Number of Regions (now put the real number)
            writer.Position = 0;
            writer.Write(sectioncount);
        }