Am 27.09.2013 06:14, schrieb Ramkumar Ramachandra: > arch/um/defconfig only lists one default configuration, and that applies > only to the i386 architecture. Replace it with two minimal > configuration files generated using `make savedefconfig`: > > i386_defconfig and x86_64_defconfig > > The build scripts now require two updates: > > 1. um's Kconfig (arch/x86/um/Kconfig) should specify an ARCH_DEFCONFIG > section explicitly pointing to these scripts if the required > variables are set. Take care to remove the DEFCONFIG_LIST section > defined in the included file arch/um/Kconfig.common. > > 2. um's Makefile (arch/um/Makefile) should set KBUILD_DEFCONFIG properly > for the top-level Makefile to pick up. Copy the logic in > arch/x86/Makefile to properly pick the defconfig file depending on > the actual architecture; except we're working with $SUBARCH here, > instead of $ARCH. > > Now, you can do: > > $ ARCH=um make defconfig > $ ARCH=um make > > and successfully build User-Mode Linux on an x86_64 box in default > configuration.
I don't much like the commit message, but I will amend it myself. I.e. defconfig worked always on x86_64, you have to specify SUBARCH=x86_64. Your patch adds the handy feature that make defconfig will use the host arch automatically. Patch queued for 3.13-rc1. Thanks, //richard -- 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/
