Re: [avr-gcc-list] avr-gcc & ld segfaults when compiling micropendous programs

[Fabio Varesano]

Thanks for the suggestions. I uploaded intermediate files there.
However, I then updated to binutils current snapshot and the bug is no 
more there. Marked the issue as fixed. Hopefully the bug report will 
be useful for people on 2.22 having the same issue.

Thanks for your help.

On 01/22/2012 02:35 PM, Georg-Johann Lay wrote:
> Fabio Varesano schrieb:
> > > > Hi all,
> > > >
> > > > I recently bought a Micropendous board.. I'm now trying to have some
> > > > of the examples available to be compiled but they all fails with a
> > > > segmentation fault (See bottom of the mail).
> > > >
> > > > I'm using avr-gcc 4.6.2 on a 64bit Archlinux. An example of such
> > > > firmware is VirtualSerial available from
> > > > http://micropendous.googlecode.com/files/Micropendous-2011-11-26.zip
> > > >
> > > > What do you think?
> > >
> > > As is it the linker that crashes and not the compiler: What version of
> > > binutils do you use?
> > >
> > > Does it work without relaxing?
> >
> > It's binutils 2.22 and yes it's not shown when relaxing is not enabled.
> >
> > It does look like a bug to me which I reported to
> > http://sourceware.org/bugzilla/show_bug.cgi?id=13612 with a simple
> > test case showing the issue.
>
> Thanks for reporting.
>
> But notice that binutils cannot chew C code. Maybe it's better to
> attach the compiler output? Use -save-temps to get intermediate .s
> assembler file. Better attach it together with the linker options you
> use.
>
> Notice that binutils developers in general don't have AVR environment
> installed or even know what "AVR" is; suppose it's a generic bug and
> someone working for PowerPC would like to fix it.
>
> The less barriers a bug report contains, the more likely someone will
> take care of the bug; thus the report should not refer to avr-gcc or
> avr-libc.
>
> Does the code need objects from avr-libc to link against?
> Or can you get the bug without referring to libc?
>
> Johann