Hi, how can i detect if the heap is used? Because 99,9 % of the programs don't use malloc, and alloca can often be used instead, only malloc is no problem.
Regards, Rolf mspgcc-users@lists.sourceforge.net schrieb am 27.08.05 08:32:38: > > At 03:22 27-08-05 +0200, you wrote: > >nobo...@web.de wrote: > >> in the stackcheck example &_end is used for the stack check > >> and the comment says that _end is defined by the linker. > >> Because the heap begins behind the bss segment and grows > >> towards the stack this seem to mean that stackcheck can only work > >> if the heap is unused. > >> Is this right? > > > >yes > > > > > >if you have a heap (use of malloc/free) then the stack check has to be > >done differently. one solution is to preclaculate a lowest allowed > >address and put the stackmarker there: > > > > extern unsigned short __stack; > > unsigned short *address = (unsigned short *)(__stack-50); > > > > Or write a small wrapper around malloc which determines which address is > still available for the stack. > > Nico Coesel > > > > ------------------------------------------------------- > SF.Net email is Sponsored by the Better Software Conference & EXPO > September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices > Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA > Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf > _______________________________________________ > Mspgcc-users mailing list > Mspgcc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/mspgcc-users
