Missing symbol for zero build on bsd port repo using Fedora

[Michael Franz]

Andrew,

I tried to build using the standard jdk7 (not bsd project) and got the same
errors.  Since this is a stock Fedora 10,this does not seem to be an issue
with the source tree, but with my compiler.  How do I get
my gcc to generate i486 instead of i386?

Michael

On Wed, Mar 11, 2009 at 5:39 AM, Andrew Haley <aph at redhat.com> wrote:

> Gary Benson wrote:
> > Michael Franz wrote:
> >> I am trying to build zero using the latest bsd repo and getting the
> >> following error.  I cannot figure out where it is coming from and
> >> thus what I am missing.
> >>
> >>
> /home/mfranz/developer/icedtea/IcedTea7-Tip/openjdk-ecj/build/linux-i586/hotspot/outputdir/linux_zero_core/product/libjvm.so:
> >> undefined reference to `__sync_val_compare_and_swap_4'
> >>
> /home/mfranz/developer/icedtea/IcedTea7-Tip/openjdk-ecj/build/linux-i586/hotspot/outputdir/linux_zero_core/product/libjvm.so:
> >> undefined reference to `__sync_add_and_fetch_4'
> >> collect2: ld returned 1 exit status
> >
> > These come from the gcc atomic intrinsics in
> > ports/hotspot/src/os_cpu/linux_zero/vm/atomic_linux_zero.inline.hpp
> > (or its BSD equivalent).  If gcc doesn't know how to generate inline
> > assembly for your platform it drops in calls to functions like those.
> > I'm guessing you're on x86 or ppc?  gcc ought to be able to handle
> > that, so maybe it's just a case of enabling something there, but I'm
> > no expert.  aph would know more...
>
> The most likely explanation is that the g++ being used is building for the
> i386 architecture, which doesn't have the atomic instructions.  We need
> i486 or above.
>
> Andrew.
>
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