hi, during development a cross platform appliacation on x86 workstation i've enabled an alignemnt checking [1] to catch possible erroneous code before it appears on client's sparc/arm cpu with sigbus ;)
it works pretty fine and catches alignment violations but Jakub Jelinek had told me (on glibc bugzilla) that gcc on x86 can still dereference an unaligned pointer (except for vector insns). i suppose it means that gcc can emit e.g. movl for access a short int (or maybe others scenarios) in some cases and violates cpu alignment rules. so, is it possible to instruct gcc-x86 to always use suitable loads/stores like on sparc/arm? [1] "AC" bit - http://en.wikipedia.org/wiki/FLAGS_register_(computing) BR, Pawel.
