Hi,
The Internal error: abort in get_output_file_with_visibility, at
gengtype.c:1998, seen sometimes on kFreeBSD, seems to be here:
> err = regcomp (files_rules[rulix].frul_re,
> files_rules[rulix].frul_srcexpr,
> files_rules[rulix].frul_rflags);
> if (err)
> {
> /* The regular expression compilation fails only when
> file_rules is buggy. */
> gcc_unreachable ();
So it seems to fail to compile a regex, but apparently not always.
Unfortunately we can't see the return value / error (and nobody could
reproduce this yet outside of the buildds), but I guess an error that
might happen only _sometimes_ is REG_ESPACE (The regex routines ran out
of memory).
This happens inside of a loop, so maybe something is exhausting
resources and leaving too little memory for when some unused-yet regex
needs to be compiled? A new obstack is created on each iteration but
they were not being properly freed until this commit (fixing it in GCC
4.7.0, but not in GCC 4.6.3) :
http://gcc.gnu.org/viewcvs?view=revision&revision=172832
So I guess that could be worth a try?
Also in another commit I noticed a change that might be important when
multiple jobs are running (though this doesn't seem to be the situation
yet for gcc-4.6 on kFreeBSD) :
http://gcc.gnu.org/viewcvs/trunk/gcc/Makefile.in?r1=177358&r2=177357&pathrev=177358
Specifically this part:
@@ -3853,9 +3862,10 @@
gtyp-input.list
# First, parse all files and save a state file.
$(RUN_GEN) build/gengtype$(build_exeext) $(GENGTYPE_FLAGS) \
- -S $(srcdir) -I gtyp-input.list -w gtype.state
+ -S $(srcdir) -I gtyp-input.list -w tmp-gtype.state
# Second, read the state file and generate all files. This ensure that
# gtype.state is correctly read:
+ $(SHELL) $(srcdir)/../move-if-change tmp-gtype.state gtype.state
$(RUN_GEN) build/gengtype$(build_exeext) $(GENGTYPE_FLAGS) \
-r gtype.state
$(STAMP) s-gtype
Thanks,
Regards,
--
Steven Chamberlain
steven@pyro.eu.org