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Save/restore fs/gs segments when re-entering host code

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This commit is contained in:
Luke Street
2025-10-05 13:58:40 -06:00
parent 04516b246c
commit cd7baffc5e
44 changed files with 669 additions and 20 deletions
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7
dll/kernel32/errhandlingapi.cpp
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@@ -14,17 +14,20 @@ namespace kernel32 {
void setLastErrorFromErrno() { wibo::lastError = wibo::winErrorFromErrno(errno); }
DWORD WIN_FUNC GetLastError() {
WIN_API_SEGMENT_GUARD();
DEBUG_LOG("GetLastError() -> %u\n", wibo::lastError);
return wibo::lastError;
}
void WIN_FUNC SetLastError(DWORD dwErrCode) {
WIN_API_SEGMENT_GUARD();
DEBUG_LOG("SetLastError(%u)\n", dwErrCode);
wibo::lastError = dwErrCode;
}
void WIN_FUNC RaiseException(DWORD dwExceptionCode, DWORD dwExceptionFlags, DWORD nNumberOfArguments,
const ULONG_PTR *lpArguments) {
WIN_API_SEGMENT_GUARD();
DEBUG_LOG("RaiseException(0x%x, 0x%x, %u, %p)\n", dwExceptionCode, dwExceptionFlags, nNumberOfArguments,
lpArguments);
(void)dwExceptionFlags;
@@ -34,12 +37,14 @@ void WIN_FUNC RaiseException(DWORD dwExceptionCode, DWORD dwExceptionFlags, DWOR
}
PVOID WIN_FUNC AddVectoredExceptionHandler(ULONG First, PVECTORED_EXCEPTION_HANDLER Handler) {
WIN_API_SEGMENT_GUARD();
DEBUG_LOG("STUB: AddVectoredExceptionHandler(%u, %p)\n", First, Handler);
return reinterpret_cast<PVOID>(Handler);
}
LPTOP_LEVEL_EXCEPTION_FILTER WIN_FUNC
SetUnhandledExceptionFilter(LPTOP_LEVEL_EXCEPTION_FILTER lpTopLevelExceptionFilter) {
WIN_API_SEGMENT_GUARD();
DEBUG_LOG("STUB: SetUnhandledExceptionFilter(%p)\n", lpTopLevelExceptionFilter);
LPTOP_LEVEL_EXCEPTION_FILTER previous = g_topLevelExceptionFilter;
g_topLevelExceptionFilter = lpTopLevelExceptionFilter;
@@ -47,11 +52,13 @@ SetUnhandledExceptionFilter(LPTOP_LEVEL_EXCEPTION_FILTER lpTopLevelExceptionFilt
}
LONG WIN_FUNC UnhandledExceptionFilter(PEXCEPTION_POINTERS ExceptionInfo) {
WIN_API_SEGMENT_GUARD();
DEBUG_LOG("STUB: UnhandledExceptionFilter(%p)\n", ExceptionInfo);
return EXCEPTION_EXECUTE_HANDLER;
}
UINT WIN_FUNC SetErrorMode(UINT uMode) {
WIN_API_SEGMENT_GUARD();
DEBUG_LOG("STUB: SetErrorMode(%u)\n", uMode);
UINT previous = g_processErrorMode;
g_processErrorMode = uMode;