Guile under Guix on Arm

Guile under Guix on Arm

[Andreas Enge]

Hello,

   ./pre-inst-env guix build guile-static-stripped-tarball --target=armv5-linux-gnueabi
(after enabling armv5 as explained under porting in the guix manual)
results in the following error:

  CC       libguile_2.0_la-fluids.lo
finalizers.c:166:1: error: static declaration of 'GC_set_finalizer_notifier' follows non-static declaration
In file included from ../libguile/bdw-gc.h:47:0,
                 from finalizers.c:26:
/nix/store/8wkjgpb4b81ha352zz4fn3pvcwnj8x8c-libgc-7.2d/include/gc/gc.h:177:21: note: previous declaration of 'GC_set_finalizer_notifier' was here
make[3]: *** [libguile_2.0_la-finalizers.lo] Error 1
make[3]: *** Waiting for unfinished jobs....
make[3]: Leaving directory `/tmp/nix-build-guile-static-2.0.9.drv-0/guile-2.0.9/libguile'
make[2]: *** [all] Error 2
make[2]: Leaving directory `/tmp/nix-build-guile-static-2.0.9.drv-0/guile-2.0.9/libguile'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/tmp/nix-build-guile-static-2.0.9.drv-0/guile-2.0.9'
make: *** [all] Error 2
phase `build' failed after 54 seconds

Indeed, line 177 of gc.h is:
GC_API void GC_CALL GC_set_finalizer_notifier(GC_finalizer_notifier_proc);

And line 47 of bdw-gc.h is:
#include <gc/gc.h>

The static redefinition is in lines 164 ff. of finalizers.c:
#ifndef HAVE_GC_SET_FINALIZER_NOTIFIER
static void
GC_set_finalizer_notifier (void (*notifier) (void))
{
  GC_finalizer_notifier = notifier;
}
#endif

And config.h contains
/* #undef HAVE_GC_SET_FINALIZER_NOTIFIER */

"By hand", I did compile guile-2.0.9 without problem.

A problem in guile, or with the guile package in guix with respect to cross
compiling?

Andreas

Re: Guile under Guix on Arm

[Ludovic Courtès]

Andreas Enge <andreas@enge.fr> skribis:

>    ./pre-inst-env guix build guile-static-stripped-tarball --target=armv5-linux-gnueabi
> (after enabling armv5 as explained under porting in the guix manual)
> results in the following error:
>
>   CC       libguile_2.0_la-fluids.lo
> finalizers.c:166:1: error: static declaration of 'GC_set_finalizer_notifier' follows non-static declaration
> In file included from ../libguile/bdw-gc.h:47:0,
>                  from finalizers.c:26:
> /nix/store/8wkjgpb4b81ha352zz4fn3pvcwnj8x8c-libgc-7.2d/include/gc/gc.h:177:21: note: previous declaration of 'GC_set_finalizer_notifier' was here

[...]

> And config.h contains
> /* #undef HAVE_GC_SET_FINALIZER_NOTIFIER */

Could you check in config.log why ‘GC_set_finalizer_notifier’ was
considered unavailable?

That could be worked around by adding
‘ac_cv func_GC_set_finalizer_notifier=yes’ to #:configure-flags, but I
suspect there’s another issue hiding here.

Thanks,
Ludo’.

Re: Guile under Guix on Arm

[Andreas Enge]

On Tue, Oct 29, 2013 at 09:51:51PM +0100, Ludovic Courtès wrote:
> Could you check in config.log why ‘GC_set_finalizer_notifier’ was
> considered unavailable?

Here is an excerpt of config.log:

configure:48599: checking for GC_set_finalizer_notifier
configure:48599: armv5-linux-gnueabi-gcc -o conftest -I/nix/store/8wkjgpb4b81ha352zz4fn3pvcwnj8x8c-libgc-7.2d/include   -g -O2  -ldl conftest.c -L/nix/store/8wkjgpb4b81ha352zz4fn3pvcwnj8x8c-libgc-7.2d/lib -lgc   -lcrypt -lm  >&5
/nix/store/nf41xld171gr7zyzamb6lk7c2fx3cgn0-gcc-cross-armv5-linux-gnueabi-4.7.3/libexec/gcc/armv5-linux-gnueabi/ld: warning: libpthread.so.0, needed by /nix/store/8wkjgpb4b81ha352zz4fn3pvcwnj8x8c-libgc-7.2d/lib/libgc.so, not found (try using -rpath or -rpath-link)
/nix/store/8wkjgpb4b81ha352zz4fn3pvcwnj8x8c-libgc-7.2d/lib/libgc.so: undefined reference to `pthread_detach@GLIBC_2.4'
/nix/store/8wkjgpb4b81ha352zz4fn3pvcwnj8x8c-libgc-7.2d/lib/libgc.so: undefined reference to `pthread_attr_getstack@GLIBC_2.4'
/nix/store/8wkjgpb4b81ha352zz4fn3pvcwnj8x8c-libgc-7.2d/lib/libgc.so: undefined reference to `pthread_create@GLIBC_2.4'
/nix/store/8wkjgpb4b81ha352zz4fn3pvcwnj8x8c-libgc-7.2d/lib/libgc.so: undefined reference to `sem_getvalue@GLIBC_2.4'
/nix/store/8wkjgpb4b81ha352zz4fn3pvcwnj8x8c-libgc-7.2d/lib/libgc.so: undefined reference to `pthread_cancel@GLIBC_2.4'
... (lots of further warnings concerning threads).
collect2: error: ld returned 1 exit status
configure:48599: $? = 1

Andreas

Re: Guile under Guix on Arm

[Ludovic Courtès]

Andreas Enge <andreas@enge.fr> skribis:

> On Tue, Oct 29, 2013 at 09:51:51PM +0100, Ludovic Courtès wrote:
>> Could you check in config.log why ‘GC_set_finalizer_notifier’ was
>> considered unavailable?
>
> Here is an excerpt of config.log:
>
> configure:48599: checking for GC_set_finalizer_notifier
> configure:48599: armv5-linux-gnueabi-gcc -o conftest -I/nix/store/8wkjgpb4b81ha352zz4fn3pvcwnj8x8c-libgc-7.2d/include   -g -O2  -l

I wanted to try and investigate, but then I realized the breadth and
depth of the triplet mess:

  • We want what config.guess calls armv5tel-linux-gnueabi (as found on
    the GuruPlug and many other devices);

  • Binutils calls it “armv5t”;

  • GCC calls it “armv5”, and presumably needs both --with-arch=armv5t
    and some --with-abi configure flag;

  • libc (in ports/sysdeps/arm/preconfigure) doesn’t seem to care about
    the architecture name, but it does recognize the “linux-gnueabi”
    part.

So I guess that will need some thought.

In particular, I guess ‘gcc-configure-flags-for-triplet’ should return
the ‘--target’ flag in addition to the others (so it can remove the
“tel” suffix here), and we probably need
‘binutils-configure-flags-for-triplet’ as well.

Thoughts?

Ludo’.