On Monday 28 August 2006 19:30, Bernd Trog wrote: > On Sun, 27 Aug 2006, Rolf Magnus wrote: > > On Sunday 27 August 2006 14:37, Bernd Trog wrote: > > > --- Rolf Magnus <[EMAIL PROTECTED]> wrote: > > > > Well, this is with sjlj exception handling. I now managed to compile > > > > it with the newer exception handling method, and (at least I think > > > > that was > > > > > > Interesting. How do you switch between these two exception handling > > > methods? > > > > It's a configure switch for building gcc and libstdc++. From configure > > --help: > > > > --enable-sjlj-exceptions > > force use of builtin_setjmp for exceptions > > [default=auto] > > > > I used that at the begining, because I couldn't get it to compile > > otherwise. > > OK, does this mean that I have to disable the sjlj exceptions with > --enable-sjlj-exceptions=no > to get the newer, smaller exception handling method?
The default is auto. I thought it was the exception handling that was responsible for the size decrease. But this seems not to be the case. > When I configure gcc-4.1.1 with this flag, make fails with: > [...] > gcc -c -g -O2 -DIN_GCC -DCROSS_COMPILE -W -Wall -Wwrite-strings > -Wstrict-proto types -Wmissing-prototypes -pedantic -Wno-long-long > -Wno-variadic-macros -Wold-sty le-definition -Wmissing-format-attribute > -Wno-error -DHAVE_CONFIG_H -DGENERATOR_ FILE -I. -Ibuild > -I/src/source/gcc-4.1.1/gcc -I/src/source/gcc-4.1.1/gcc/build > -I/src/source/gcc-4.1.1/gcc/../include > -I/src/source/gcc-4.1.1/gcc/../libcpp/include > -o build/insn-conditions.o insn-conditions.c > In file included from insn-conditions.c:45: > /src/source/gcc-4.1.1/gcc/except.h:155:6: error: #error > "EH_RETURN_DATA_REGNO required" > [...] It seems I never got the other exception code. I have no clue why the code size at one point suddenly dropped from 20k to 11k. _______________________________________________ AVR-GCC-list mailing list AVR-GCC-list@nongnu.org http://lists.nongnu.org/mailman/listinfo/avr-gcc-list
