Am 07.11.2016 um 03:42 schrieb Gennady Agranov: > Hi, > > I have submitted a bug - http://bugs.freepascal.org/view.php?id=30872 > (misaligned data exception on > ARMv7) > > And this big was resolved as "won't fix" > > 1. I understand that one has to work really hard to encounter this bug - and > there are easy > workarounds, but it there are also different ways to resolve this bug - e.g. > just giving a hint > would suffice - IMHO
While this is possible, if you - as said below - use packrecords 1, you will get a hint on every use of such a cardinal as the compiler normally does not know the final address of a variable in a program but only its alignment requirements. So even if a cardinal is the first element of a such a record, the compiler cannot assume that this field is actually properly aligned because packrecords 1 relaxes also the alignment requirements of the whole record, so the record itself might be start at an unaligned address. This makes imo such a hint useless. Or what are the conditions when you want to emit the hint? > > 2. All our units use {$PACKRECORDS 1} in order to be layout compatible with > Delphi and we always can > add padding or change the field order - if only compiler warned us that field > is not properly > aligned for the target platform... > > 3. And a separate question - if the bug is closed - is there any way to add a > note to it? You can reopen it to add the note. _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-devel