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Windows: Rise a non-continuable excetpion for STATUS_STACK_BUFFER_OVERRUN

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Jacek Caban committed 2026-09-06 15:20:30 +02:00
1 parent 9f511d5d78
commit d704bd3cef
5 files changed
+20 -3
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Source/Windows/ARM64EC/Module.cpp
+9 -1
View File
@@ -87,10 +87,12 @@ void* WineSyscallDispatcher;
uint64_t WineNtContinueSyscallId;
uint64_t WineNtAllocateVirtualMemorySyscallId;
uint64_t WineNtProtectVirtualMemorySyscallId;
uint64_t WineNtRaiseExceptionSyscallId;
NTSTATUS NtContinueNative(ARM64_NT_CONTEXT* NativeContext, BOOLEAN Alert);
NTSTATUS NtAllocateVirtualMemoryNative(HANDLE, PVOID*, ULONG_PTR, SIZE_T*, ULONG, ULONG);
NTSTATUS NtProtectVirtualMemoryNative(HANDLE, PVOID*, SIZE_T*, ULONG, ULONG*);
NTSTATUS NtRaiseExceptionNative(EXCEPTION_RECORD*, ARM64_NT_CONTEXT*, BOOL);
static fextl::string AppConfigName {};
[[noreturn]]
@@ -260,6 +262,8 @@ void ParseWineSyscallNumbers(HMODULE NtDll) {
WineNtAllocateVirtualMemorySyscallId = CurSyscallId;
} else if (strcmp(it->Name, "NtProtectVirtualMemory") == 0) {
WineNtProtectVirtualMemorySyscallId = CurSyscallId;
} else if (strcmp(it->Name, "NtRaiseException") == 0) {
WineNtRaiseExceptionSyscallId = CurSyscallId;
}
}
}
@@ -500,7 +504,8 @@ static void RethrowGuestException(const EXCEPTION_RECORD& Rec, ARM64_NT_CONTEXT&
EFlags &= ~(1 << FEXCore::X86State::RFLAG_TF_RAW_LOC);
CTX->SetFlagsFromCompactedEFLAGS(Thread, EFlags);
Args->Rec = FEX::Windows::HandleGuestException(Fault, Rec, Args->Context.Pc, Args->Context.X8, Args->Context.X0);
BOOL FirstChance = TRUE;
Args->Rec = FEX::Windows::HandleGuestException(Fault, Rec, Args->Context.Pc, Args->Context.X8, Args->Context.X0, FirstChance);
if (Args->Rec.ExceptionCode == EXCEPTION_SINGLE_STEP) {
Args->Context.Cpsr &= ~(1 << 21); // PSTATE.SS
} else if (Args->Rec.ExceptionCode == EXCEPTION_BREAKPOINT) {
@@ -508,6 +513,9 @@ static void RethrowGuestException(const EXCEPTION_RECORD& Rec, ARM64_NT_CONTEXT&
Args->Context.Pc -= 1;
}
if (!FirstChance) {
NtRaiseExceptionNative(&Args->Rec, &Args->Context, FirstChance);
}
Context.Sp = reinterpret_cast<uint64_t>(Args);
Context.Pc = KiUserExceptionDispatcher;
}