Better process implementation (#491)

* Initial implementation of KProcess

* Some improvements to the memory manager, implement back guest stack trace printing

* Better GetInfo implementation, improve checking in some places with information from process capabilities

* Allow the cpu to read/write from the correct memory locations for accesses crossing a page boundary

* Change long -> ulong for address/size on memory related methods to avoid unnecessary casts

* Attempt at implementing ldr:ro with new KProcess

* Allow BSS with size 0 on ldr:ro

* Add checking for memory block slab heap usage, return errors if full, exit gracefully

* Use KMemoryBlockSize const from KMemoryManager

* Allow all methods to read from non-contiguous locations

* Fix for TransactParcelAuto

* Address PR feedback, additionally fix some small issues related to the KIP loader and implement SVCs GetProcessId, GetProcessList, GetSystemInfo, CreatePort and ManageNamedPort

* Fix wrong check for source pages count from page list on MapPhysicalMemory

* Fix some issues with UnloadNro on ldr:ro

1 files changed, 0 insertions, 205 deletions

diff --git a/Ryujinx.HLE/Loaders/Executable.cs b/Ryujinx.HLE/Loaders/Executable.cs
deleted file mode 100644
index d4d79073..00000000
--- a/Ryujinx.HLE/Loaders/Executable.cs
+++ /dev/null
@@ -1,205 +0,0 @@
-using ChocolArm64.Memory;
-using Ryujinx.HLE.HOS;
-using Ryujinx.HLE.HOS.Kernel;
-using Ryujinx.HLE.Loaders.Executables;
-using Ryujinx.HLE.Utilities;
-using System;
-using System.Collections.Generic;
-using System.Collections.ObjectModel;
-using System.IO;
-using System.Linq;
-
-namespace Ryujinx.HLE.Loaders
-{
-    class Executable
-    {
-        private MemoryManager Memory;
-
-        private List<ElfDyn> Dynamic;
-
-        public ReadOnlyCollection<ElfSym> SymbolTable;
-
-        public string Name { get; private set; }
-
-        public string FilePath { get; private set; }
-
-        public long ImageBase { get; private set; }
-        public long ImageEnd  { get; private set; }
-
-        private KMemoryManager MemoryManager;
-
-        public Executable(IExecutable Exe, KMemoryManager MemoryManager, MemoryManager Memory, long ImageBase)
-        {
-            Dynamic = new List<ElfDyn>();
-
-            FilePath = Exe.FilePath;
-
-            if (FilePath != null)
-            {
-                Name = Path.GetFileNameWithoutExtension(FilePath.Replace(Homebrew.TemporaryNroSuffix, ""));
-            }
-
-            this.Memory        = Memory;
-            this.MemoryManager = MemoryManager;
-            this.ImageBase     = ImageBase;
-            this.ImageEnd      = ImageBase;
-
-            long TextPosition = ImageBase + (uint)Exe.TextOffset;
-            long ROPosition   = ImageBase + (uint)Exe.ROOffset;
-            long DataPosition = ImageBase + (uint)Exe.DataOffset;
-
-            long TextSize = (uint)IntUtils.AlignUp(Exe.Text.Length, KMemoryManager.PageSize);
-            long ROSize   = (uint)IntUtils.AlignUp(Exe.RO.Length, KMemoryManager.PageSize);
-            long DataSize = (uint)IntUtils.AlignUp(Exe.Data.Length, KMemoryManager.PageSize);
-            long BssSize  = (uint)IntUtils.AlignUp(Exe.BssSize, KMemoryManager.PageSize);
-
-            long DataAndBssSize = BssSize + DataSize;
-
-            ImageEnd = DataPosition + DataAndBssSize;
-
-            if (Exe.SourceAddress == 0)
-            {
-                MemoryManager.HleMapProcessCode(TextPosition, TextSize + ROSize + DataAndBssSize);
-
-                MemoryManager.SetProcessMemoryPermission(ROPosition, ROSize, MemoryPermission.Read);
-                MemoryManager.SetProcessMemoryPermission(DataPosition, DataAndBssSize, MemoryPermission.ReadAndWrite);
-
-                Memory.WriteBytes(TextPosition, Exe.Text);
-                Memory.WriteBytes(ROPosition, Exe.RO);
-                Memory.WriteBytes(DataPosition, Exe.Data);
-            }
-            else
-            {
-                long Result = MemoryManager.MapProcessCodeMemory(TextPosition, Exe.SourceAddress, TextSize + ROSize + DataSize);
-
-                if (Result != 0)
-                {
-                    throw new InvalidOperationException();
-                }
-
-                MemoryManager.SetProcessMemoryPermission(ROPosition, ROSize, MemoryPermission.Read);
-                MemoryManager.SetProcessMemoryPermission(DataPosition, DataSize, MemoryPermission.ReadAndWrite);
-
-                if (Exe.BssAddress != 0 && Exe.BssSize != 0)
-                {
-                    Result = MemoryManager.MapProcessCodeMemory(DataPosition + DataSize, Exe.BssAddress, BssSize);
-
-                    if (Result != 0)
-                    {
-                        throw new InvalidOperationException();
-                    }
-
-                    MemoryManager.SetProcessMemoryPermission(DataPosition + DataSize, BssSize, MemoryPermission.ReadAndWrite);
-                }
-            }
-
-            if (Exe.Mod0Offset == 0)
-            {
-                return;
-            }
-
-            long Mod0Offset = ImageBase + Exe.Mod0Offset;
-
-            int  Mod0Magic        = Memory.ReadInt32(Mod0Offset + 0x0);
-            long DynamicOffset    = Memory.ReadInt32(Mod0Offset + 0x4)  + Mod0Offset;
-            long BssStartOffset   = Memory.ReadInt32(Mod0Offset + 0x8)  + Mod0Offset;
-            long BssEndOffset     = Memory.ReadInt32(Mod0Offset + 0xc)  + Mod0Offset;
-            long EhHdrStartOffset = Memory.ReadInt32(Mod0Offset + 0x10) + Mod0Offset;
-            long EhHdrEndOffset   = Memory.ReadInt32(Mod0Offset + 0x14) + Mod0Offset;
-            long ModObjOffset     = Memory.ReadInt32(Mod0Offset + 0x18) + Mod0Offset;
-
-            while (true)
-            {
-                long TagVal = Memory.ReadInt64(DynamicOffset + 0);
-                long Value  = Memory.ReadInt64(DynamicOffset + 8);
-
-                DynamicOffset += 0x10;
-
-                ElfDynTag Tag = (ElfDynTag)TagVal;
-
-                if (Tag == ElfDynTag.DT_NULL)
-                {
-                    break;
-                }
-
-                Dynamic.Add(new ElfDyn(Tag, Value));
-            }
-
-            long StrTblAddr = ImageBase + GetFirstValue(ElfDynTag.DT_STRTAB);
-            long SymTblAddr = ImageBase + GetFirstValue(ElfDynTag.DT_SYMTAB);
-
-            long SymEntSize = GetFirstValue(ElfDynTag.DT_SYMENT);
-
-            List<ElfSym> Symbols = new List<ElfSym>();
-
-            while ((ulong)SymTblAddr < (ulong)StrTblAddr)
-            {
-                ElfSym Sym = GetSymbol(SymTblAddr, StrTblAddr);
-
-                Symbols.Add(Sym);
-
-                SymTblAddr += SymEntSize;
-            }
-
-            SymbolTable = Array.AsReadOnly(Symbols.OrderBy(x => x.Value).ToArray());
-        }
-
-        private ElfRel GetRelocation(long Position)
-        {
-            long Offset = Memory.ReadInt64(Position + 0);
-            long Info   = Memory.ReadInt64(Position + 8);
-            long Addend = Memory.ReadInt64(Position + 16);
-
-            int RelType = (int)(Info >> 0);
-            int SymIdx  = (int)(Info >> 32);
-
-            ElfSym Symbol = GetSymbol(SymIdx);
-
-            return new ElfRel(Offset, Addend, Symbol, (ElfRelType)RelType);
-        }
-
-        private ElfSym GetSymbol(int Index)
-        {
-            long StrTblAddr = ImageBase + GetFirstValue(ElfDynTag.DT_STRTAB);
-            long SymTblAddr = ImageBase + GetFirstValue(ElfDynTag.DT_SYMTAB);
-
-            long SymEntSize = GetFirstValue(ElfDynTag.DT_SYMENT);
-
-            long Position = SymTblAddr + Index * SymEntSize;
-
-            return GetSymbol(Position, StrTblAddr);
-        }
-
-        private ElfSym GetSymbol(long Position, long StrTblAddr)
-        {
-            int  NameIndex = Memory.ReadInt32(Position + 0);
-            int  Info      = Memory.ReadByte(Position + 4);
-            int  Other     = Memory.ReadByte(Position + 5);
-            int  SHIdx     = Memory.ReadInt16(Position + 6);
-            long Value     = Memory.ReadInt64(Position + 8);
-            long Size      = Memory.ReadInt64(Position + 16);
-
-            string Name = string.Empty;
-
-            for (int Chr; (Chr = Memory.ReadByte(StrTblAddr + NameIndex++)) != 0;)
-            {
-                Name += (char)Chr;
-            }
-
-            return new ElfSym(Name, Info, Other, SHIdx, Value, Size);
-        }
-
-        private long GetFirstValue(ElfDynTag Tag)
-        {
-            foreach (ElfDyn Entry in Dynamic)
-            {
-                if (Entry.Tag == Tag)
-                {
-                    return Entry.Value;
-                }
-            }
-
-            return 0;
-        }
-    }
-}
\ No newline at end of file