On 05.01.2016 13:06, Jose E. Marchesi wrote:
> The default cpu option for -m32 in sparc is very very conservative: a v7
> cpu. It may be worth it to consider bumping it to ultrasparc/v9a or, at
> least v9, when GCC is built for sparcv9-* targets...
right, but v9 seems to imply 64bit/sparc64. used this patch to work
around it on sparc32:
http://anonscm.debian.org/viewvc/gcccvs/branches/sid/gcc-6/debian/patches/sparc-force-cpu.diff?revision=8487&view=markup
Seems to be a bit of confussion with the triplets:
sparc-*-* -> This is a 32-bit sparc. Using -mcpu=v7/cypruss in a GCC
targetting sparc-* is just fine.
sparcv9-*-* -> This is for 32-bit v8+ binaries running on a 64-bit sparc
v9. Using -mcpu=v9 in a GCC targetting sparcv9-* would
be a reasonable default here. It currently uses v7.
Your patch above uses -mcpu=ultrasparc, and that is not right for
sparc-* triplets targetting 32-bit processors.
ohh ... ok, but 32bit sparc is gone in Debian anyway. If somebody wants to
revive this architecture, then we probably would have to change the triplet as well.
