On Tue, Nov 24, 2015 at 11:38:53AM +0100, Arnd Bergmann wrote: > I suggested using -mcpu=cortex-a15 because there are old gcc versions > that don't know about -march=armv7ve or -march=armv7-a+idiv yet, but > that do understand -mcpu=cortex-a15.
That's not all. The bigger problem is that there are toolchains out there which accept these options, but do _not_ support IDIV in either ARM or Thumb mode. I'm afraid that makes it impossible to add this feature to the mainline kernel in this form: we need to run a test build to check that -march=armv7ve or what-not really does work through both GCC and GAS. Given that Ubuntu 14.04 LTS suffers with this, it's something that must be resolved. -- FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
