[fpc-pascal] Logging full runtime-error/exception backtrace

[Martin]

On 20/02/2012 14:58, leledumbo wrote:
> I want to log the full runtime-error/exception backtrace to a file. I've
> tried all methods explained
> http://wiki.lazarus.freepascal.org/Logging_exceptions here  but none seems
> to give the full backtrace. i.e. when compiled with -gl, instead of just the
> address, I could also get "line NN of file XX.pas". How could I do it?
>

If you ship with debug info, then see gdbmidebugger.pp
   function TGDBMIDebuggerCommand.Execute: Boolean;

         Report :=  BackTraceStrFunc(ExceptAddr);
         Report2 := Report;
         Frames := ExceptFrames;
         for I := 0 to ExceptFrameCount - 1 do begin
           Report := Report + LineEnding + BackTraceStrFunc(Frames[I]);
           if i < 5
           then Report2 := Report;
         end;

-------

If you do not want to ship with debug info:

- compile with debug info
- keep a copy of the file with debug info
- use strip[.exe] to remove  the debug info from shipping version
- dump addresses

when you get the addresses, you can use gdb and the copy with debug info 
that you kept (must match 100% the shipped version)

you will need a smass script calling gdb for each address


gdb.exe -i mi project1.exe  --eval-command="info line *0x428f60"  
--eval-command=q