error while x-compiling libgcc2.c

[Florent DEFAY <spira dot inhabitant at gmail dot com>]

Hi,

I am workingon a new port.
Target: 16 bits, no hard mul.

My problem is when I try to compile libgcc2, it finishes with error:
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/home/guest1/gcc/build_target/./gcc/xgcc
-B/home/guest1/gcc/build_target/./gcc/
-B/home/guest1/target/target/bin/ -B/home/guest1/target/target/lib/
-isystem /home/guest1/target/target/include -isystem
/home/guest1/target/target/sys-include -O2 -g -g -O2 -O2  -O2 -g -g
-O2   -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE   -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
-isystem ./include   -g  -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED
-Dinhibit_libc  -I. -I. -I../.././gcc -I../../../gcc-4.3.3/libgcc
-I../../../gcc-4.3.3/libgcc/. -I../../../gcc-4.3.3/libgcc/../gcc
-I../../../gcc-4.3.3/libgcc/../include   -o _muldi3.o -MT _muldi3.o
-MD -MP -MF _muldi3.dep -DL_muldi3 -c
../../../gcc-4.3.3/libgcc/../gcc/libgcc2.c \

xgcc: Internal error: Segmentation fault (program cc1)
Please submit a full bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
make: *** [_muldi3.o] Error 1
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Here is the piece of code in libgcc2.c which provokes the crash:
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#ifdef L_muldi3
DWtype
__muldi3 (DWtype u, DWtype v)
{
  const DWunion uu = {.ll = u};
  const DWunion vv = {.ll = v};
  DWunion w = {.ll = __umulsidi3 (uu.s.low, vv.s.low)};

  w.s.high += ((UWtype) uu.s.low * (UWtype) vv.s.high
               + (UWtype) uu.s.high * (UWtype) vv.s.low);

  return w.ll;
}
#endif
_________________________________________________________________


More precisely the crash is on this line:
 DWunion w = {.ll = __umulsidi3 (uu.s.low, vv.s.low)};

I don't know what's wrong in my machine description. I tried to
include a pattern "umulsidi3" but it does not change anything.
I do not find the definition of this __umulsidi3.

Has someone any idea ? any clue ?

Thank you.
Regards.

Florent