gcc 3.1 produces bus errors on arm-linux

gcc 3.1 produces bus errors on arm-linux

[Nick Patavalis]

Hi,

I was scanning mailing lists for something related to my problem, and
came upon a posting by Tobias Hunger at the gcc-help mailing list (31
Jul 2002, http://gcc.gnu.org/ml/gcc-help/2002-07/msg00296.html)

The problem I'm witnessing is exactly the same as the one described in
the above-mentioned post (trying to run any binary that requires a
glibc 2.2.[35] compiled with gcc 3.1, causes a segfault; static
binaries work fine). Since from the followups at the list I could not
see any resolution, I tought I'd write to ask if any progress has been
made with this.

Thanks in advance
/npat

Nick Patavalis
inAccess Networks S.A.

-- 
A commune is where people join together to share their lack of wealth.
  -- Richard M. Stallman

Re: gcc 3.1 produces bus errors on arm-linux

[Tobias Hunger]

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I just tried the normal, unpatched gcc 3.1.1 code. Same problem:-( glibc 
compiles, everything using it gives a bus error on my sharp Zaurus.

- -- 
Gruss,
Tobias

- ------------------------------------------------------------
Tobias Hunger           The box said: 'Windows 95 or better'
tobias@fresco.org                      So I installed Linux.
- ------------------------------------------------------------
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Re: gcc 3.1 produces bus errors on arm-linux

[Tobias Hunger]

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On Wednesday 31 July 2002 16:55, Momchil Velikov wrote:
> >>>>> "Tobias" == Tobias Hunger <tobias@fresco.org> writes:
>
> Tobias> configure -target=arm-linux --host=i686-linux \
>                   ^^
> You actually configured like this or a typo?

Sorry, cut'n'paste error. I of course used --target.

- -- 
Gruss,
Tobias

- ------------------------------------------------------------
Tobias Hunger           The box said: 'Windows 95 or better'
tobias@fresco.org                      So I installed Linux.
- ------------------------------------------------------------
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Re: gcc 3.1 produces bus errors on arm-linux

[Momchil Velikov]

>>>>> "Tobias" == Tobias Hunger <tobias@fresco.org> writes:
Tobias> configure -target=arm-linux --host=i686-linux \
                  ^^
You actually configured like this or a typo?

~velco

gcc 3.1 produces bus errors on arm-linux

[Tobias Hunger]

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Hi!

I successfully managed to build a crosscompiling gcc from i686-linux to 
arm-linux.

Using the sources from here: 
ftp://ftp.de.debian.org/debian/pool/main/g/gcc-3.1/gcc-3.1_3.1.1ds2.orig.tar.gz  
ftp://ftp.de.debian.org/debian/pool/main/g/gcc-3.1/gcc-3.1_3.1.1ds2-0pre3.diff.gz

I used these configure options to build a cross-gcc:
configure -target=arm-linux --host=i686-linux \
                 --build=i686-linux \
                 --prefix=/path \
                 --enable-languages=c \
                 --disable-threads \
                 --disable-shared

Then I build glibc (sources from today's CVS), using these configure args:
configure \
       --host arm-linux --build i686-linux \
       --disable-profile \
       --enable-add-ons \
       --prefix=/usr \
       --infodir=/usr/share/info \
       --libdir=/lib \
       --mandir=/usr/share/man \
       --enable-shared \
       --with-headers=/path/linux/include

This gives me a nice little libc that I then install to my Zaurus. ldconfig 
finds them all right. Any application I start from that moment on gives me a 
Bus error. I tried diffrent versions of glibc (2.2.4 and 2.2.5), all show the 
same behaviour. I further tried diffrent optimization flags (-march=rmv4 
- -mtune=strongarm1100 -mapcs-32 -fexpensive-optimizations -fomit-frame-pointer 
- -O3 down to no extra flags at all). The same sources of glibc work fine with 
the gcc-2.95.x toolchains you can download. So my guess is that gcc 3.1(.1) 
produces buggy code. How can I further debug this? Any ideas?

- -- 
Gruss,
Tobias

- ------------------------------------------------------------
Tobias Hunger           The box said: 'Windows 95 or better'
tobias@fresco.org                      So I installed Linux.
- ------------------------------------------------------------
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