there is a workaround (gcc-3.2), therefore the severity could be
reduced, otoh it's generating wrong code. please could you check, if
this one is reproducible in gcc-3.4?
The last awk sucessfully built on m68k is the 3.3 branch 20040728.
Matthias
Fumitoshi UKAI writes:
> clone 278135 -1
> reassign -1 gcc-3.3
> retitle -1 gcc-3.3: __fixunsdfdi problem on m68k
> severity -1 critical
> retitle 278135 gawk: FTBFS on m68k: clobber.awk test fails with "internal
> error" with gcc-3.3
> thanks
>
> I confirm RC Bug#278135 on crest.debian.org's dchroot unstable, so I
> track down it with help of gotom and we suspect this is because of
> __fixunsdfdi in libgcc.a of gcc-3.3 (1:3.3.5-1).
>
> I confirm that gawk-3.1.4-1 (was succsessfully built on Aug 7 2004) is
> also failed to build from source on m68k with gcc-3.3 now and
> gawk-3.1.4-1.2 (was failed to build now with default gcc) can be built
> from source on m68k with gcc-3.2 now.
>
> I think it is very critical bug, because all binaries that do casting
> from double to unsigned int would include __fixunsdfdi code fragment
> in it instead of just refering shared object, so that we need to
> recompile such binaries after this bug is fixed.
> (and currently m68k's buildd uses gcc-3.3 as /usr/bin/gcc)
>
> This is small example to reproduce this problem.
>
> crest% vi test.c
> #include <stdio.h>
> #include <stdint.h>
>
> int main()
> {
> int x;
> double y = 831.0;
> x = (uintmax_t) y;
> return x;
> }
> crest% cc -g -o t test.c
> crest% ./t
> zsh: bus error ./t
> crest% gdb ./t
> GNU gdb 6.1-debian
> Copyright 2004 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you are
> welcome to change it and/or distribute copies of it under certain conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB. Type "show warranty" for details.
> This GDB was configured as "m68k-linux"...Using host libthread_db library
> "/lib/libthread_db.so.1".
>
> (gdb) run
> Starting program: /home/ukai/tmp/t
>
> Program received signal SIGBUS, Bus error.
> 0xc003cebe in __libc_start_main () from /lib/libc.so.6
> (gdb) bt
> #0 0xc003cebe in __libc_start_main () from /lib/libc.so.6
> #1 0x800004ce in __fixunsdfdi ()
> #2 0x80000466 in main () at test.c:8
>
> Regards,
> Fumitoshi UKAI
>
>
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