This was the error I got from gcc-4.1.1 while attempting to compile gcc-3.4.3.
$ arm-none-linux-gnueabi-gcc -O2 -DIN_GCC -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem
./include -fomit-frame-pointer -fPIC -g0 -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2
-D__GCC_FLOAT_NOT_NEEDED -I. -I. -I../../gcc -I../../gcc/.
-I../../gcc/../include -fexceptions -c ../../gcc/unwind-dw2.c -o
libgcc/./unwind-dw2.o -save-temps
../../gcc/unwind-dw2.c: In function 'extract_cie_info':
../../gcc/unwind-dw2.c:328: warning: pointer targets in passing argument 1 of
'strlen' differ in signedness
../../gcc/unwind-dw2.c:381: warning: dereferencing type-punned pointer will
break strict-aliasing rules
../../gcc/unwind-dw2.c: In function 'execute_cfa_program':
../../gcc/unwind-dw2.c:844: warning: dereferencing type-punned pointer will
break strict-aliasing rules
../../gcc/unwind-dw2.c: In function 'uw_frame_state_for':
../../gcc/unwind-dw2.c:1060: warning: dereferencing type-punned pointer will
break strict-aliasing rules
../../gcc/unwind-dw2.c: In function 'init_dwarf_reg_size_table':
../../gcc/unwind-dw2.c:1272: internal compiler error: in
arm_dbx_register_number, at config/arm/arm.c:15183
--
Summary: ICE while compiling gcc-3.4.3 with gcc-4.1.1
Product: gcc
Version: 4.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: mriben at globallocate dot com
GCC host triplet: i686-host_pc-linux-gnu
GCC target triplet: arm-none-linux-gnueabi
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29693
