Messages in this thread | | | Date | Mon, 30 Nov 2015 11:26:36 -0800 | From | Florian Fainelli <> | Subject | Re: [PATCH 1/1] kconfig: add CPU endian selection beconfig and leconfig |
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On 27/11/15 15:49, Scott Branden wrote: > Hi Florian, > > On 15-11-27 10:39 AM, Florian Fainelli wrote: >> Le 26/11/2015 11:59, Scott Branden a écrit : >>> Add support for switching defconfig between big and little endian CPU. >>> Various CPU types have ability to select big and little endian >>> CPU in the kernel configuration. >>> >>> "make beconfig" will set CONFIG_CPU_BIG_ENDIAN >>> "make leconfig" will unset CONFIG_CPU_BIG_ENDIAN >> >> I believe I understand what you are trying to achieve here, which is to >> have an identical defconfig file that you can share between a big-endian >> and little-endian kernel? > You understand correct - ARM64 maintainers have only allowed 1 defconfig > upstream and it supports little endian. And it doesn't make sense to > have another defconfig with a single line difference upstreamed. Yet > the defconfig does not allow the system to boot in big endian mode. >> >> Is not this something better left to a build system which understands >> what config fragments are in general? > Every build system would need to invent their own procedure. By adding > this into the upstream kernel there is no need to. > make defconfig > make beconfig (or make leconfig) > make
In my experience build systems like OpenWrt, Yocto/OE know about config fragments, but have a harder time dealing with running multiple make targets within the Linux source tree...
>> >> Since we seem to have support for fragments now with kvm and friends, >> having this does not seem to be a big stretch though. > Yes, that is why I proposed place it in a common location.
Fair enough. -- Florian
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