Files
FEX-Emu--FEX/FEXCore/include/FEXCore/Debug/InternalThreadState.h
T
2025-02-11 13:42:45 -08:00

120 lines
3.4 KiB
C++

// SPDX-License-Identifier: MIT
#pragma once
#include <FEXCore/Core/Context.h>
#include <FEXCore/Core/CoreState.h>
#include <FEXCore/Core/SignalDelegator.h>
#include <FEXCore/Utils/Event.h>
#include <FEXCore/Utils/InterruptableConditionVariable.h>
#include <FEXCore/Utils/Threads.h>
#include <FEXCore/Utils/TypeDefines.h>
#include <FEXCore/fextl/memory.h>
#include <FEXCore/fextl/vector.h>
#include <shared_mutex>
#include <type_traits>
namespace FEXCore {
class LookupCache;
class CompileService;
struct JITSymbolBuffer;
} // namespace FEXCore
namespace FEXCore::Context {
class Context;
}
namespace FEXCore::CPU {
class CPUBackend;
} // namespace FEXCore::CPU
namespace FEXCore::Frontend {
class Decoder;
}
namespace FEXCore::IR {
class OpDispatchBuilder;
class PassManager;
} // namespace FEXCore::IR
namespace FEXCore::Profiler {
struct ThreadStats;
};
namespace FEXCore::Core {
// Special-purpose replacement for std::unique_ptr to allow InternalThreadState to be standard layout.
// Since a NonMovableUniquePtr is neither copyable nor movable, its only function is to own and release the contained object.
template<typename T>
struct NonMovableUniquePtr {
NonMovableUniquePtr() noexcept = default;
NonMovableUniquePtr(const NonMovableUniquePtr&) = delete;
NonMovableUniquePtr& operator=(const NonMovableUniquePtr& UPtr) = delete;
NonMovableUniquePtr& operator=(fextl::unique_ptr<T> UPtr) noexcept {
Ptr = UPtr.release();
return *this;
}
~NonMovableUniquePtr() {
fextl::default_delete<T> {}(Ptr);
}
T* operator->() const noexcept {
return Ptr;
}
std::add_lvalue_reference_t<T> operator*() const noexcept {
return *Ptr;
}
T* get() const noexcept {
return Ptr;
}
operator bool() const noexcept {
return Ptr != nullptr;
}
private:
T* Ptr = nullptr;
};
static_assert(!std::is_move_constructible_v<NonMovableUniquePtr<int>>);
static_assert(!std::is_move_assignable_v<NonMovableUniquePtr<int>>);
struct InternalThreadState : public FEXCore::Allocator::FEXAllocOperators {
FEXCore::Core::CpuStateFrame* const CurrentFrame = &BaseFrameState;
FEXCore::Context::Context* const CTX;
NonMovableUniquePtr<FEXCore::IR::OpDispatchBuilder> OpDispatcher;
NonMovableUniquePtr<FEXCore::CPU::CPUBackend> CPUBackend;
NonMovableUniquePtr<FEXCore::LookupCache> LookupCache;
NonMovableUniquePtr<FEXCore::Frontend::Decoder> FrontendDecoder;
NonMovableUniquePtr<FEXCore::IR::PassManager> PassManager;
NonMovableUniquePtr<JITSymbolBuffer> SymbolBuffer;
std::shared_ptr<FEXCore::CompileService> CompileService;
std::shared_mutex ObjectCacheRefCounter {};
// This pointer is owned by the frontend.
FEXCore::Profiler::ThreadStats* ThreadStats {};
///< Data pointer for exclusive use by the frontend
void* FrontendPtr;
// BaseFrameState should always be at the end, directly before the interrupt fault page
alignas(16) FEXCore::Core::CpuStateFrame BaseFrameState {};
// Can be reprotected as RO to trigger an interrupt at generated code block entrypoints
alignas(FEXCore::Utils::FEX_PAGE_SIZE) uint8_t InterruptFaultPage[FEXCore::Utils::FEX_PAGE_SIZE];
};
static_assert(std::is_standard_layout_v<FEXCore::Core::InternalThreadState>);
static_assert(
(offsetof(FEXCore::Core::InternalThreadState, InterruptFaultPage) - offsetof(FEXCore::Core::InternalThreadState, BaseFrameState)) < 4096,
"Fault page is outside of immediate range from CPU state");
} // namespace FEXCore::Core