No, we must not require cross-compilers to all ubuntu kernel supported
architectures to change a config of just one arch.
Ubuntu kernel build machinery must provide a way to rebuild a single
arch kernel with different options without rebuilding configs of all
other arches.
Please seek help from kernel team on how to tweak single arch config
without cross compilers to all other arches.
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
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Packages, which is subscribed to linux-5.4 in Ubuntu.
https://bugs.launchpad.net/bugs/1863116
Title:
debian/rules editconfigs does not work on s390x to change s390x only
configs
Status in Ubuntu on IBM z Systems:
Incomplete
Status in linux package in Ubuntu:
New
Status in linux-5.4 package in Ubuntu:
New
Bug description:
On s390x
pull-lp-source linux-5.4
cd linux-*
fakeroot ./debian/rules clean
./debian/rules editconfig
dh_testdir;
/bin/bash -e debian/scripts/misc/kernelconfig editconfigs
Do you want to edit config: amd64/config.flavour.generic? [Y/n] n
...
scripts/Kconfig.include:35: compiler 'x86_64-linux-gnu-gcc' not found
make[3]: *** [../scripts/kconfig/Makefile:73: syncconfig] Error 1
make[2]: *** [/home/ubuntu/linux-5.4-5.4.0/Makefile:594: syncconfig] Error 2
make[2]: Leaving directory '/home/ubuntu/linux-5.4-5.4.0/build'
make[1]: *** [Makefile:179: sub-make] Error 2
make[1]: Leaving directory '/home/ubuntu/linux-5.4-5.4.0'
make: *** [debian/rules.d/1-maintainer.mk:44: editconfigs] Error 2
And indeed i do not have x86_64-linux-gnu-gcc crosscompiler available
to build on s390x for amd64, and also I don't want to touch amd64
configs. Only s390x ones.
As a user, I should be able to rebuild ports architecture kernel with
tweaked config for testing, self-hosted without cross-compilers.
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