[ECOS] ld segfaults

[Bart Veer]

>>>>> "Mark" == Mark Grosberg <mark@nolab.conman.org> writes:

    Mark> Hello all,

    Mark> I'm not quite sure how to report this bug. It seems to be a
    Mark> problem with GNU ld for i386-elf as distributed from
    Mark> eCosCentric (and installed via the ecos-install.sh script).

    Mark> So far we have tried it on a RedHat 7.3 SMP machine and a
    Mark> RedHat 8 laptop. In both cases, we can (sometimes) get ld to
    Mark> core dump. This seems easier to do -ffunction-sections and
    Mark> -fvtable-gc.

    <snip>

    Mark> Has anybody else experienced these problems? This is rather
    Mark> hard to reproduce. As our code changes slightly, the bug
    Mark> comes or goes. I'm rather reluctant to just go off and build
    Mark> the latest binutils without knowing what that may effect.

    Mark> Could this just be an issue with the versions of Linux we
    Mark> are using?

Those tools were built under RH7.3, so the version of Linux should not
be a problem. It does look like you are hitting some bug in ld which
only triggers under certain boundary conditions. I have not
encountered this bug myself, or had any similar reports.

A good first step would be to build the current release of binutils,
2.14, http://sources.redhat.com/binutils. The bug may well have been
fixed already. If that does not work then you may have to debug ld
itself. Unfortunately I suspect that you will not be able to provide a
small testcase for the binutils folks to look at, because any attempt
to simplify the problem will make it go away.

Bart

-- 
Bart Veer                       eCos Configuration Architect
http://www.ecoscentric.com/     The eCos and RedBoot experts

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