Am 02.06.2014 22:30, schrieb Eric Botcazou: >> I have successfully built without the switch, but I am not sure of the >> effects at runtime. > > For sure libitm cannot work, there is a 'flushw' in config/sparc/sjlj.S. > >> If V9 is indeed required, is there a way to build without those libs? Or >> has pre V9 support been dropped at some point? > > No, V8 is still supported, but nobody has ported the libraries to it. > >> IMHO an efficiency enhancement should not prevent running less >> efficiently on a supported architecture. If target triple is >> sparcv9-*-*, the next case will match and will add the "-mcpu=v9" to >> XCFLAGS, but adding it for non-v9 sparc-*-* targets is at least weird. > > Well, V9 is about 20 years old now so defaulting to it is not unreasonable, > especially for all the native OSes. But patches are of course welcome.
V9 is currently bound to 64bit, you can't build a sparc-linux-gnu compiler defaulting to V9 without patches. But anyway, Debian did drop the sparc port two months ago anyway. Matthias
