Refactor PtcInfo (#2625)

* 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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@ -1,3 +1,4 @@
using ARMeilleure.CodeGen;
using ARMeilleure.Common;
using ARMeilleure.Decoders;
using ARMeilleure.Diagnostics;
@ -279,32 +280,30 @@ namespace ARMeilleure.Translation
Logger.EndPass(PassName.RegisterUsage);
OperandType[] argTypes = new OperandType[] { OperandType.I64 };
var retType = OperandType.I64;
var argTypes = new OperandType[] { OperandType.I64 };
CompilerOptions options = highCq ? CompilerOptions.HighCq : CompilerOptions.None;
var options = highCq ? CompilerOptions.HighCq : CompilerOptions.None;
GuestFunction func;
if (!context.HasPtc)
if (context.HasPtc)
{
func = Compiler.Compile<GuestFunction>(cfg, argTypes, OperandType.I64, options);
options |= CompilerOptions.Relocatable;
}
else
CompiledFunction compiledFunc = Compiler.Compile(cfg, argTypes, retType, options);
if (context.HasPtc)
{
using PtcInfo ptcInfo = new PtcInfo();
func = Compiler.Compile<GuestFunction>(cfg, argTypes, OperandType.I64, options, ptcInfo);
Hash128 hash = Ptc.ComputeHash(Memory, address, funcSize);
Ptc.WriteInfoCodeRelocUnwindInfo(address, funcSize, hash, highCq, ptcInfo);
Ptc.WriteCompiledFunction(address, funcSize, hash, highCq, compiledFunc);
}
var result = new TranslatedFunction(func, counter, funcSize, highCq);
GuestFunction func = compiledFunc.Map<GuestFunction>();
Allocators.ResetAll();
return result;
return new TranslatedFunction(func, counter, funcSize, highCq);
}
private struct Range