Am Saturday 11 August 2012 17:34:44 schrieb Marco van de Voort: > In our previous episode, Rainer Stratmann said: > > But not the 80x86 CPU. It is still the same opcode for a call ($E8). > > Maybe not the call, but changing or adding address encoding is quite > realistic. > > I assume you tested your code for PIC cases (which are quite common on > *nix?)
The call ($E8) itself operates with a relative adress as I found out and write already and documented in the piece of code shown in a previous mail. > http://en.wikipedia.org/wiki/Position-independent_code > > FPC supports PIC > > And of course finding a perfect starting point so that you don't find false > positives when you find $E8 inside the address (change 1 in 256 obviously) If there is a $E8 then also the calculated absolute adress from the following 4 bytes must point to the searching text translate function. So errors are likely rare. _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
