On 02 Oct 2010, at 15:07, Juha Manninen (gmail) wrote:
> On Saturday 02 October 2010 12:21:20 Jonas Maebe wrote:
>> Compile with -gl, or set a breakpoint on FPC_RANGEERROR
>
> Forgot to tell, I compiled with "-gw -gh".
> "-gw" should be as good as "-gl".
It has nothing to do with being "as good as", they do different things (just
like "-gw" and "-gh" do different things).
> Now I tried with -gl but no luck. I get an Assembly window:
> http://koti.phnet.fi/juhamann/Lazarus/AssemblyRangeCheck.jpg
> but no source lines.
-gl shows the source code lines next to the hexadecimal addresses when a
backtrace is printed to the console. The assembly window in that screenshot is
completely unrelated.
> Should I build the compiler with debug info?
That is not required.
>
> In any case FPC should give better feedback to the user about range check
> errors. A RunError and an Assembly window are quite useless.
FPC nor the RTL ever show assembly an window. That is something
Lazarus-specific. And when Lazarus shows an assembly window, it presumably can
also show a callstack window.
> Because of "-gh" I am getting the following output always when closing
> Lazarus. Only the numbers change with Lazarus versions and compile options.
>
> Likely it is not a "real" error. Vincent Snijders suspected it is a bug in
> the
> way heaptrc does its counting in a 64-bit system. In a 32-bit system it works.
As long as it says "0 unfreed memory blocks : 0", there is no problem.
Jonas
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