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Re: Second GCC 5.1 Release Candidate successful avr target build


2015-04-18 22:15 GMT+03:00 Ralph Doncaster <ralphdoncaster@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 Ãvec<ipa_polymorphic_call_context,
> va_heap, vl_embed>::m_vecdataà of NULL object
> ../../../source/gcc-5.0.1-RC-20150418/gcc/vec.h:1048: warning:
> (perhaps the Ãoffsetofà 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.


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