On Thu, 27 Jun 2013 13:06:07 +0200 Dimitry Andric <dimi...@andric.com> wrote:
> On 2013-06-27 02:02, Kevin Day wrote: > > Are you supposed to be able to use gcc to build userland binaries > > if you built world with clang? > > > > I'm on -CURRENT as of a few days ago (using armv6 but i'm not sure > > if that matters). > > Yes, the arch matters a lot. For arm, adding __clear_cache() to > libgcc was explicitly disabled by Andrew here: > > http://svnweb.freebsd.org/base?view=revision&revision=244382 > > "Don't provide clear_cache or the __sync_* functions on ARM with clang > as they are provided by clang as builtin functions." > > Maybe those functions should be in libgcc after all, if other programs > depend on this. The reason to disable __clear_cache is incorrect in r244382 as it is a builtin in clang, but calls into an external copy of __clear_cache. The reason __clear_cache was disabled was because of a bug in clang where it is unable to compile a builtin function, however I only found this out recently. The issue with clang has been fixed, and, as of r251791 __clear_cache is enabled in compiler-rt. Andrew > > -Dimitry > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to > "freebsd-hackers-unsubscr...@freebsd.org" > > _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
