[Bug bootstrap/44959] [4.6 Regression] bootstrap failed at Comparing stages 2 and 3

["ro at CeBiTec dot Uni-Bielefeld.DE" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44959

--- Comment #37 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> 2012-09-14 13:54:42 UTC ---
> --- Comment #32 from Hin-Tak Leung <htl10 at users dot sourceforge.net>
> 2012-09-01 11:22:55 UTC ---
> Went back to 4.5.0 and commenting out '#STAGE2_CFLAGS += -gtoggle' in
> config/bootstrap-debug.mk have it going beyond stage2/3 comparison. So I don't
> know how I managed to build 4.6.1 once
> (http://gcc.gnu.org/ml/gcc-testresults/2011-08/msg00587.html).
>
> I'll just go back and try every one of them with that mod, and run 'make -k
> check' afterwards.

Please forget about gcc 4.5.x: I don't test that branch any longer, so
even if you find something useful, it's almost guaranteed that I won't
touch that branch.

> "-gtoggle" seems to do more than just toggling -g - after strip'ing, the
> objects still differ by an extra text section in one of them. (anybody can have
> a look at the attached tarballs of object files in this report).

If you had mentioned -gtoggle previously, you'd have saved all of us a
long useless hunt: different object files with and without -gtoggle can
easily be reproduced with a trivial source file.

I'll try to have a look what's going on.

    Rainer