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Refactor PtcInfo (#2625)

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* Refactor `PtcInfo`

This change reduces the coupling of `PtcInfo` by moving relocation
tracking to the backend. `RelocEntry`s remains as `RelocEntry`s through
out the pipeline until it actually needs to be written to the PTC
streams. Keeping this representation makes inspecting and manipulating
relocations after compilations less painful. This is something I needed
to do to patch relocations to 0 to diff dumps.

Contributes to #1125.

* Turn `Symbol` & `RelocInfo` into readonly structs

* Add documentation to `CompiledFunction`

* Remove `Compiler.Compile<T>`

Remove `Compiler.Compile<T>` and replace it by `Map<T>` of the
`CompiledFunction` returned.
This commit is contained in:
FICTURE7 2021-09-14 03:23:37 +04:00 • committed by GitHub
parent ac4ec1a015
commit a9343c9364
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19 changed files with 256 additions and 247 deletions
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48
ARMeilleure/Translation/PTC/Ptc.cs
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@ -1,9 +1,9 @@
using ARMeilleure.CodeGen;
using ARMeilleure.CodeGen.Linking;
using ARMeilleure.CodeGen.Unwinding;
using ARMeilleure.CodeGen.X86;
using ARMeilleure.Common;
using ARMeilleure.Memory;
using ARMeilleure.Translation.Cache;
using Ryujinx.Common;
using Ryujinx.Common.Configuration;
using Ryujinx.Common.Logging;
@ -727,15 +727,10 @@ namespace ARMeilleure.Translation.PTC
UnwindInfo unwindInfo,
bool highCq)
{
CompiledFunction cFunc = new CompiledFunction(code, unwindInfo);
var cFunc = new CompiledFunction(code, unwindInfo, RelocInfo.Empty);
var gFunc = cFunc.Map<GuestFunction>();
IntPtr codePtr = JitCache.Map(cFunc);
GuestFunction gFunc = Marshal.GetDelegateForFunctionPointer<GuestFunction>(codePtr);
TranslatedFunction tFunc = new TranslatedFunction(gFunc, callCounter, guestSize, highCq);
return tFunc;
return new TranslatedFunction(gFunc, callCounter, guestSize, highCq);
}
private static void UpdateInfo(InfoEntry infoEntry)
@ -889,10 +884,14 @@ namespace ARMeilleure.Translation.PTC
return XXHash128.ComputeHash(memory.GetSpan(address, checked((int)(guestSize))));
}
internal static void WriteInfoCodeRelocUnwindInfo(ulong address, ulong guestSize, Hash128 hash, bool highCq, PtcInfo ptcInfo)
internal static void WriteCompiledFunction(ulong address, ulong guestSize, Hash128 hash, bool highCq, CompiledFunction compiledFunc)
{
lock (_lock)
{
byte[] code = compiledFunc.Code;
RelocInfo relocInfo = compiledFunc.RelocInfo;
UnwindInfo unwindInfo = compiledFunc.UnwindInfo;
InfoEntry infoEntry = new InfoEntry();
infoEntry.Address = address;
@ -900,18 +899,37 @@ namespace ARMeilleure.Translation.PTC
infoEntry.Hash = hash;
infoEntry.HighCq = highCq;
infoEntry.Stubbed = false;
infoEntry.CodeLength = ptcInfo.Code.Length;
infoEntry.RelocEntriesCount = ptcInfo.RelocEntriesCount;
infoEntry.CodeLength = code.Length;
infoEntry.RelocEntriesCount = relocInfo.Entries.Length;
SerializeStructure(_infosStream, infoEntry);
WriteCode(ptcInfo.Code.AsSpan());
WriteCode(code.AsSpan());
// WriteReloc.
ptcInfo.RelocStream.WriteTo(_relocsStream);
using var relocInfoWriter = new BinaryWriter(_relocsStream, EncodingCache.UTF8NoBOM, true);
foreach (RelocEntry entry in relocInfo.Entries)
{
relocInfoWriter.Write(entry.Position);
relocInfoWriter.Write((byte)entry.Symbol.Type);
relocInfoWriter.Write(entry.Symbol.Value);
}
// WriteUnwindInfo.
ptcInfo.UnwindInfoStream.WriteTo(_unwindInfosStream);
using var unwindInfoWriter = new BinaryWriter(_unwindInfosStream, EncodingCache.UTF8NoBOM, true);
unwindInfoWriter.Write(unwindInfo.PushEntries.Length);
foreach (UnwindPushEntry unwindPushEntry in unwindInfo.PushEntries)
{
unwindInfoWriter.Write((int)unwindPushEntry.PseudoOp);
unwindInfoWriter.Write(unwindPushEntry.PrologOffset);
unwindInfoWriter.Write(unwindPushEntry.RegIndex);
unwindInfoWriter.Write(unwindPushEntry.StackOffsetOrAllocSize);
}
unwindInfoWriter.Write(unwindInfo.PrologSize);
}
}