Re: [GIT PULL] arch: remove obsolete architecture ports

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On Mon, 02 Apr 2018 00:17:30 PDT (-0700), Arnd Bergmann wrote:
- openrisc, risc-v and nds32 are still in the process of finishing their
  support or getting it added to mainline gcc in the first place.
  They all have patched gcc-7.3 ports that work to some degree, but
  complete upstream support won't happen before gcc-8.1. Csky posted
  their first kernel patch set last week, their situation will be similar.

FWIW, RISC-V landed in GCC 7. The 7.3.0 release (and binutils-2.30) is the first one we recommend for kernel development as there have been a handful of bug fixes, but there's nothing major. SiFive ships GCC versions with a few extra patches applied, and while I still recommend people use these they should all be performance improvements at this point. With compilers you never know if a performance improvement is hiding a bug, but what's tagged as gcc-7.3.0 passes the test suite.

Our 32-bit glibc port isn't upstream yet, but our 32-bit kernel is a bit of a mess so that's not the blocking issue in rv32-land right now :).



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