On 02/01/2008 03:46 AM, Jakub Jelinek wrote: > On Thu, Jan 31, 2008 at 07:50:42PM -0500, Kyle McMartin wrote: >> On Thu, Jan 31, 2008 at 04:47:55PM -0800, Roland McGrath wrote: >>>> Why are we building kernels with this broken compiler? >>>> >>>> http://bugzilla.kernel.org/show_bug.cgi?id=8501 >>>> >>>> http://koji.fedoraproject.org/koji/getfile?taskID=388196&name=build.log >>> Why are we building these broken kernels with our shiny new compiler? >>> >> Does using -ffreestanding fix these references to libgcc? I notice >> we're not using it when we build x86 or powerpc kernels, where we see >> this... > > No, even -ffreestanding assumes libgcc is used. libgcc.a is mostly[1] > self-contained and assumed to be present in both -fhosted and -ffreestanding > linking. This is nothing new, has been like that for many years. > AFAIK kernel on several architectures uses libgcc.a, on those where it > intentionally decides not to do that, it either needs to supply its own > implementation of the needed entrypoints, or make sure they are not needed. > In this case you should put in an asm optimization barrier into the loop > to avoid optimizing the loop into modulo. See the gcc PR opened for it. > The below patch fixes it too, but that just leads to the next error (on ppc64): drivers/input/mouse/psmouse-base.c:45: error: __param_proto causes a section type conflict Was someone supposed to test building the kernel package with the new compiler before making it the default? --- linux-2.6.24.noarch.orig/include/linux/time.h +++ linux-2.6.24.noarch/include/linux/time.h @@ -169,7 +169,7 @@ extern struct timeval ns_to_timeval(cons * @a: pointer to timespec to be incremented * @ns: unsigned nanoseconds value to be added */ -static inline void timespec_add_ns(struct timespec *a, u64 ns) +static inline void timespec_add_ns(struct timespec *a, volatile u64 ns) { ns += a->tv_nsec; while(unlikely(ns >= NSEC_PER_SEC)) { -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
