在Win64結構化異常跟蹤(從Programming against the x64 exception handling support, part 7: Putting it all together, or building a stack walk routine)讀取時,我轉換了代碼StackWalk64.cpp。Win64異常堆棧走不顯示條目
procedure DumpExceptionStack();
var
LContext : CONTEXT;
LUnwindHistoryTable : _UNWIND_HISTORY_TABLE;
LRuntimeFunction : Pointer;
LImageBase : ULONGLONG;
HandlerData : Pointer;
EstablisherFrame : ULONG64;
NvContext : KNONVOLATILE_CONTEXT_POINTERS;
LLineNumber : integer;
LModuleName : UnicodeString;
LPublicAddr : pointer;
LPublicName : UnicodeString;
LUnitName : UnicodeString;
begin
//
// First, we'll get the caller's context.
//
RtlCaptureContext(LContext);
//
// Initialize the (optional) unwind history table.
//
LUnwindHistoryTable := Default(_UNWIND_HISTORY_TABLE);
// LUnwindHistoryTable.Unwind := True;
//
// This unwind loop intentionally skips the first call frame, as it shall
// correspond to the call to StackTrace64, which we aren't interested in.
//
repeat
//
// Try to look up unwind metadata for the current function.
//
LRuntimeFunction := RtlLookupFunctionEntry(LContext.Rip,
LImageBase,
LUnwindHistoryTable);
NvContext := Default(KNONVOLATILE_CONTEXT_POINTERS);
if not Assigned(LRuntimeFunction) then
begin
//
// If we don't have a RUNTIME_FUNCTION, then we've encountered
// a leaf function. Adjust the stack approprately.
//
//LContext.Rip := (ULONG64)(*(PULONG64)Context.Rsp);
LContext.Rip := ULONG64(Pointer(LContext.Rsp)^);
LContext.Rsp := LContext.Rsp + 8;
end
else
begin
//
// Otherwise, call upon RtlVirtualUnwind to execute the unwind for
// us.
//
RtlVirtualUnwind(UNW_FLAG_NHANDLER,
LImageBase,
LContext.Rip,
LRuntimeFunction,
LContext,
HandlerData,
EstablisherFrame,
NvContext);
end;
//
// If we reach an RIP of zero, this means that we've walked off the end
// of the call stack and are done.
//
if LContext.Rip = 0 then
Break;
//
// Display the context. Note that we don't bother showing the XMM
// context, although we have the nonvolatile portion of it.
//
if madMapFile.GetMapFileInfos(Pointer(LContext.Rip),
LModuleName,
LUnitName,
LPublicName,
LPublicAddr,
LLineNumber) then
begin
Writeln(Format('%p %s.%s %d', [Pointer(LContext.Rip), LUnitName, LPublicName, LLineNumber{, LSEHType}]));
end;
until LContext.Rip = 0;
end;
然後我把它改爲:
procedure Main();
begin
try
try
try
try
DumpExceptionStack();
finally
//
end;
except
on E : Exception do
raise
end;
except
on E : Exception do
raise
end;
except
on E : Exception do
raise
end;
end;
當我運行應用程序(只是一個控制檯應用程序),我只得到一個條目Main
,但我期待有是四(三個嵌套異常,最後一個)。
難道是我誤解了,並且DumpExceptionStack
只會給出我在引發異常時感興趣的結果嗎?如果是這樣的話,那麼需要進行的修改將會得到所有的異常堆棧(如果可能的話) - 也就是說。有四個輸出爲Main
?
出於好奇,在這裏試圖建立什麼? –
@大衛:理解。 –
使用C++代碼不會更容易嗎? –