2015-04-18 22:15 GMT+03:00 Ralph Doncaster <ralphdoncas...@gmail.com>: > On a x86_64 linux box I successfully built a gcc RC-20150418 toolchain > including binutils-2.25 and avr-libc r2473(svn). > > I noticed some warnings in the logs: > ../../../source/gcc-5.0.1-RC-20150418/gcc/vec.h:1048: warning: invalid > access to non-static data member âvec<ipa_polymorphic_call_context, > va_heap, vl_embed>::m_vecdataâ of NULL object > ../../../source/gcc-5.0.1-RC-20150418/gcc/vec.h:1048: warning: > (perhaps the âoffsetofâ macro was used incorrectly) > > but the build completed successfully > > One small problem I found is that earlier snapshots (RC-20150405 I > think) built OK without texinfo, but this RC build fails without it. > I just installed texinfo instead of trying to fix the configure > script. > > I compiled a small C program with -mmcu=attiny84,-Os and got a good > binary. I also tried -Os -ftlo, and got a good binary. > Unfortunately, despite the announced optimization improvements for lto > and ipa, I'm seeing slightly larger binaries than 4.9.2. Hopefully > the next 5.x release will surpass 4.9.2. > > Here's the build scripts I used if anyone wants to repeat it: > https://github.com/nerdralph/nerdralph/tree/master/avr/make-avr-gcc >
Thank you for testing and reporting. Denis.
