[Lazarus] Listing out a call stack...

[Graeme Geldenhuys]

On 8/25/08, Dominique Louis <dominique at savagesoftware.com.au> wrote:
> Hi all,
>    Is there anyway for me to output a call stack at run-time?


----------------------------------------------------
procedure DumpStack;
Var
  Message : String;
  i : longint;
begin
  writeln(' Stack trace:');
//  Dump_Stack(StdOut, get_frame);

  Writeln(stdout,'An unhandled exception occurred at
$',HexStr(Ptrint(ExceptAddr),sizeof(PtrInt)*2),' :');
  if ExceptObject is exception then
   begin
     Message:=Exception(ExceptObject).ClassName+' :
'+Exception(ExceptObject).Message;
     Writeln(stdout,Message);
   end
  else
   Writeln(stdout,'Exception object ',ExceptObject.ClassName,' is not
of class Exception.');
  Writeln(stdout,BackTraceStrFunc(ExceptAddr));
  if (ExceptFrameCount>0) then
    begin
      for i:=0 to ExceptFrameCount-1 do
        Writeln(stdout,BackTraceStrFunc(ExceptFrames[i]));
    end;
  Writeln(stdout,'');
end;
----------------------------------------------------

Please note that the above needs stdout to be available, so Windows
applications must be compiler without gui option enabled (-WG must not
be specified).

I think there is such a function in LCLProc unit as well...


Regards,
  - Graeme -


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