On Fri, 11 Jul 2014 15:27:56 +0200 Lennart Poettering <lenn...@poettering.net> wrote:
> On Fri, 11.07.14 15:04, Michael Olbrich (m.olbr...@pengutronix.de) > wrote: > > > gcc does not define WORDS_BIGENDIAN for big-endian PowerPC. It > > defines __BIG_ENDIAN__ instead. So also check for __BIG_ENDIAN__ to > > determine if the system is big-endian. > > Hmm, the sources currently use three different ways to detect > endianess: > > 1) WORDS_BIGENDIAN (which appears to be an autoconf thing actually, > enabled via AC_C_BIGENDIAN, which we never call currently) > 2) __BTYE_ORDER == __BIG_ENDIAN which appears to be be defined in > endian.h always by glibc > 3) __BIG_ENDIAN__ appears to be quite common too? gcc thing? > > Also this: > > http://sourceforge.net/p/predef/wiki/Endianness/ > > We should probably stick to one of these things. Probably #2 or #3... > > I can't find any normative documentation about these things. Given > that the #2 is at least unconditional part of glibc, I'd say to > convert everything to that. Would that work for you on ppc-be too? Jakub explained us endianity checks with GCC in https://bugzilla.redhat.com/show_bug.cgi?id=962091#c48 Dan _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
