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Merge pull request #5503 from Sonicadvance1/154

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FEXCore: Allow InterruptFaultPage to be significantly further away
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LC authored and GitHub committed 2026-05-19 12:22:18 -04:00
2 parents d4c80d9094 7d1c625e32
commit e4daea406e
2 files changed
+13 -6
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FEXCore/Source/Interface/Core/JIT/JIT.cpp
+9 -2
View File
@@ -776,8 +776,15 @@ void Arm64JITCore::EmitSuspendInterruptCheck() {
if (CTX->Config.NeedsPendingInterruptFaultCheck) {
// Trigger a fault if there are any pending interrupts
// Used only for suspend on WIN32 at the moment
strb(ARMEmitter::XReg::zr, STATE,
offsetof(FEXCore::Core::InternalThreadState, InterruptFaultPage) - offsetof(FEXCore::Core::InternalThreadState, BaseFrameState));
constexpr size_t InterruptPageOffset =
offsetof(FEXCore::Core::InternalThreadState, InterruptFaultPage) - offsetof(FEXCore::Core::InternalThreadState, BaseFrameState);
if constexpr (InterruptPageOffset <= 32760) {
str(ARMEmitter::XReg::zr, STATE, InterruptPageOffset);
} else {
// Need to use vector 128-bit store for this range.
// Doesn't matter which register we use to store.
str(ARMEmitter::QReg::q0, STATE, InterruptPageOffset);
}
}
#ifdef ARCHITECTURE_arm64ec
FEXCore/include/FEXCore/Debug/InternalThreadState.h
+4 -4
View File
@@ -125,9 +125,9 @@ struct alignas(FEXCore::Utils::FEX_PAGE_SIZE) InternalThreadState : public FEXCo
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)) <
FEXCore::Utils::FEX_PAGE_SIZE,
"Fault page is outside of immediate range from CPU state");
static_assert(sizeof(FEXCore::Core::InternalThreadState) == (FEXCore::Utils::FEX_PAGE_SIZE * 2));
// Maximum unsigned-offset store range for fault page.
static_assert(
(offsetof(FEXCore::Core::InternalThreadState, InterruptFaultPage) - offsetof(FEXCore::Core::InternalThreadState, BaseFrameState)) <= 65520,
"Fault page is outside of immediate range from CPU state");
} // namespace FEXCore::Core