mirror of
https://github.com/decompals/wibo.git
synced 2025-12-12 06:45:05 +00:00
88 lines
2.5 KiB
C++
88 lines
2.5 KiB
C++
#include "errhandlingapi.h"
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#include "common.h"
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#include "context.h"
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#include "errors.h"
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#include "internal.h"
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namespace {
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LPTOP_LEVEL_EXCEPTION_FILTER g_topLevelExceptionFilter = nullptr;
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UINT g_processErrorMode = 0;
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} // namespace
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namespace kernel32 {
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DWORD getLastError() { return wibo::getThreadTibForHost()->lastErrorValue; }
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void setLastError(DWORD error) { wibo::getThreadTibForHost()->lastErrorValue = error; }
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void setLastErrorFromErrno() { setLastError(wibo::winErrorFromErrno(errno)); }
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DWORD WIN_FUNC GetLastError() {
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#ifndef NDEBUG
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{
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HOST_CONTEXT_GUARD();
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DEBUG_LOG("GetLastError() -> %u\n", getLastError());
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}
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#endif
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// In guest context, fetch via TIB
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DWORD err;
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__asm__ __volatile__("movl %%fs:%c1, %0" : "=r"(err) : "i"(offsetof(TIB, lastErrorValue)));
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return err;
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}
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void WIN_FUNC SetLastError(DWORD dwErrCode) {
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#ifndef NDEBUG
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{
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HOST_CONTEXT_GUARD();
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DEBUG_LOG("SetLastError(%u)\n", dwErrCode);
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}
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#endif
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// In guest context, store via TIB
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__asm__ __volatile__("movl %0, %%fs:%c1" : : "r"(dwErrCode), "i"(offsetof(TIB, lastErrorValue)) : "memory");
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}
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void WIN_FUNC RaiseException(DWORD dwExceptionCode, DWORD dwExceptionFlags, DWORD nNumberOfArguments,
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const ULONG_PTR *lpArguments) {
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HOST_CONTEXT_GUARD();
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DEBUG_LOG("RaiseException(0x%x, 0x%x, %u, %p)\n", dwExceptionCode, dwExceptionFlags, nNumberOfArguments,
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lpArguments);
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(void)dwExceptionFlags;
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(void)nNumberOfArguments;
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(void)lpArguments;
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exitInternal(dwExceptionCode);
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}
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PVOID WIN_FUNC AddVectoredExceptionHandler(ULONG First, PVECTORED_EXCEPTION_HANDLER Handler) {
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HOST_CONTEXT_GUARD();
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DEBUG_LOG("STUB: AddVectoredExceptionHandler(%u, %p)\n", First, Handler);
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return reinterpret_cast<PVOID>(Handler);
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}
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LPTOP_LEVEL_EXCEPTION_FILTER WIN_FUNC
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SetUnhandledExceptionFilter(LPTOP_LEVEL_EXCEPTION_FILTER lpTopLevelExceptionFilter) {
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HOST_CONTEXT_GUARD();
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DEBUG_LOG("STUB: SetUnhandledExceptionFilter(%p)\n", lpTopLevelExceptionFilter);
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LPTOP_LEVEL_EXCEPTION_FILTER previous = g_topLevelExceptionFilter;
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g_topLevelExceptionFilter = lpTopLevelExceptionFilter;
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return previous;
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}
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LONG WIN_FUNC UnhandledExceptionFilter(PEXCEPTION_POINTERS ExceptionInfo) {
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HOST_CONTEXT_GUARD();
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DEBUG_LOG("STUB: UnhandledExceptionFilter(%p)\n", ExceptionInfo);
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return EXCEPTION_EXECUTE_HANDLER;
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}
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UINT WIN_FUNC SetErrorMode(UINT uMode) {
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HOST_CONTEXT_GUARD();
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DEBUG_LOG("STUB: SetErrorMode(%u)\n", uMode);
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UINT previous = g_processErrorMode;
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g_processErrorMode = uMode;
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return previous;
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}
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} // namespace kernel32
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