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List:       gentoo-user
Subject:    Re: [gentoo-user] GCC 4.7.2-r1 build failing with bus error
From:       Paul Hartman <paul.hartman+gentoo () gmail ! com>
Date:       2013-04-15 21:17:54
Message-ID: CAEH5T2NekriQHPX7HYWDsd2P0RSoDVx=PXgGLqEt5H4e=1uu8Q () mail ! gmail ! com
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On Fri, Apr 12, 2013 at 11:37 PM, Nilesh Govindrajan <me@nileshgr.com> wrote:
> Hi,
>
> For some weird reason, I'm unable to build gcc 4.7.2-r1.
> This is the error -
> /bin/sh: line 1:  3871 Bus error               build/genautomata
> /var/tmp/portage/sys-devel/gcc-4.7.2-r1/work/gcc-4.7.2/gcc/config/i386/i386.md
> insn-conditions.md > tmp-automata.c
>
> The thing is, I had downloaded a hardened stage 3 by mistake and then
> switched profile to non hardened.
>
> Could it be because the kernel is compiled with the hardened toolchain?

I think bus error means the compiler tried to access illegal memory
region or illegal instruction. Maybe a compiler bug? Wrong arch?

I don't know anything about hardened so I don't know if it could be
blocking access to memory somehow.

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