[Lazarus] heaptrc - Is it even worth using?
Sergei Gorelkin
sergei_gorelkin at mail.ru
Mon Oct 5 19:31:48 CEST 2009
Lee Jenkins wrote:
>
> Now, for my own personal education:
>
> (skipped)
>
> In the above trace, it looks like (and I have confirmed) the leak occurs
> inside of the LoadMappings method when I was using the TXMLDocument
> object before updating my lazarus snapshot, but I am curious as to why
> the addresses shown after "$00422EBB TMAPPINGREADER__LOADMAPPINGS" are
> blank and do not show entry into or use of TXMLDocument object.
> Unfortunately, I am not that experienced or skilled in the lower level
> stuff.
>
> Thanks for any clarification.
>
That's most probably because the fcl-xml package was compiled without
debug info. Heaptrc uses debug info to resolve addresses into function
names. Recompling the RTL and packages with `make clean all OPT=-gl;
sudo make install' command typically solves such issues.
Lineinfo stuff is also not bug-free. Sometimes it helps (at least,
helped for me) to run 'gdb your_program' at console and then enter
'disassemble <address>'. Gdb reads debuginfo in a different way, and
therefore sometimes it prints function names where lineinfo fails.
Regards,
Sergei
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