On Thu, Jul 01, 2004 at 17:42:52 +0200, Stephane List wrote: > Hi, > > I want to write a Linux driver that will be generic for ARM and Intel. > It will use some structures. The driver will exchange struct with > hardware, so data must always have the same alignment. > > On ARM920, I think that we can't have a pointer on an address that is > not multiple of 4. So what is the good pratice ? Use the __attribute__ modifier on affected structures and elements. [snap] > Why not to define something like a global macro called PRAGMA or ... > instead of all this kind of hack ? Macro can't expand to directives. That's one of numerous reasons gcc prefers __attribute__ -- macros can expand to __attribute__ declarations. ------------------------------------------------------------------------------- Jan 'Bulb' Hudec <bulb@ucw.cz>
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