On Thu, Jan 31, 2013 at 02:59:47PM -0600, Kim Phillips wrote: > On Thu, 31 Jan 2013 09:28:01 +0000 > Russell King - ARM Linux <[email protected]> wrote: > > > On Wed, Jan 30, 2013 at 08:09:00PM -0600, Kim Phillips wrote: > > > v2: > > > - at91 and lpd270 builds fixed by limiting to ARMv6 and above > > > (i.e., ARM cores that have support for the 'rev' instruction). > > > Otherwise, the compiler emits calls to libgcc's __bswapsi2 on > > > these ARMv4/v5 builds (and arch ARM doesn't link with libgcc). > > > > Which compiler version? gcc 4.5.4 doesn't do this, except for the 16-bit > > swap, so I doubt that any later compiler does. > > I've tried both gcc 4.6.3 [1] and 4.6.4 [2]. If you can point me to > a 4.5.x, I'll try that, too, but as it stands now, if one moves the > code added to swab.h below outside of its armv6 protection, > gcc adds calls to __bswapsi2.
Take a look at the message I sent on the 29th towards the beginning of this thread for details of gcc 4.5.4 behaviour. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
