I have just been checking out the entire gcc tree (head 4.0.0) and run a clean
rebuild:
cd build_directory
rm -r *
../gcc/configure --target=avr --prefix=/home/bmh --disable-nls --with-dwarf2
--enable-languages="c"
make all
(Note that I have used --with-dwarf2!) What I am getting is :-( :
../../gcc/gcc/libgcc2.c:535: internal compiler error: in simplify_subreg, at
simplify-rtx.c:3671
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
make[2]: *** [libgcc/./_muldi3.o] Fehler 1
make[2]: Leaving directory `/home/bmh/gnucvs/head/build/gcc'
make[1]: *** [stmp-multilib] Fehler 2
make[1]: Leaving directory `/home/bmh/gnucvs/head/build/gcc'
make: *** [all-gcc] Fehler 2
When building head 4.0.0 without --with-dwarf2, the build succeeds. I have
made the same observation with last week's snapshot on another build system.
Unfortunate thing is: dwarf-2 is the main debugging format for all the windows
users that use the Atmel debugger (avr-gdb is so slow under cygwin that it is
almost not useful to use it).
Yours,
Björn
--
Summary: dwarf-2 support is broken for head 4.0.0
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: bjoern dot m dot haase at web dot de
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-linux
GCC host triplet: i686-linux
GCC target triplet: avr-unknown-none
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19885
