Arch Linux User Repository

The PKGBUILD supports customization via environment variables. Here's a list of all of them:
_makemenuconfig: Invokes make menuconfig (default configuration menu) before compilation starts
_makenconfig: Invokes make nconfig (nicer configuration menu) before compilation starts
_makexconfig: Invokes make xconfig (GUI configuration menu) before compilation starts
_use_current: Will use the configuration of the running kernel, if the running kernel is compiled with IKCONFIG_PROC
_copyfinalconfig: Copies the final kernel configuration into the repository root as kconfig-new before compilation starts
_localmodcfg: Only compiles modules found in modprobed-db's database (which decreases compilation time and kernel size)
_use_llvm_lto: Compiles the kernel with LLVM instead of GCC. Should work, if not write a comment
_subarch: Specifies the sub architecture to compile for (see the PKGBUILD file for a list of all subarches). Default is 40 (Generic-x86-64), which is \compatible with all amd64 processors. Must be a number
_debug: Force enables debug options when set to y, force disables debug options when set to n or uses the config defaults when unset

All of these variables just need to be set for them to apply, except for _subarch and _debug.

If you want a dead simple way to compile this package, you can try out my build tool. It includes a few no nonsense changes to the kernel configuration and allows you to configure the PKGBUILD in a simple manner and decrease build time. And if you don't want that, using makepkg as-is works fine too.

Kernel has been updated and is now maintained again.

Thank you metak for creating this package in the first place.

@rayzorben You should boot the default arch kernel, plug in all your devices so it loads appropriate modules and then create modprobe.db. It seems like something might be missing in your build and that's why bluetooth is not working? As for the options, I'll add some description in the future.

Would love to see some basic instructions pinned with what the options are. I discovered them through the PKGBUILD but still wasn't sure what to do with them.

That being said, I had a few trial and errors regardless. I felt like env _subarch=35 _localmodcfg=y _use_current=y would be the best combo while running my fully functioning system. However it seems that _localmodcfg for some reason is causing issues with bluetooth. Bluetooth was there, it could see devices, it said my mouse was connected, but it would not work. Rebuilding without _localmodcfg works though.

OK, turning debug info off works.

(Maybe because I have CONFIG_DEBUG_INFO_BTF turned on in my kernel config which causes resolve_btfids to be called during DKMS build. Let me try turning most debug options off.)

@xuanruiqi After testing nvidia-dkms I couldn't reproduce it. It builds fine (gcc & llvm). It's definitely something on your system that's causing this. Try building in clean environment?

I was building nvidia-dkms. Some modules like nvidia need btf info to build properly, so maybe you want to put it under an option or something like that. AFAIK a lot of people use nvidia-dkms.

@xuanruiqi I had to comment out that line in PKGBUILD file when I synced it with stock arch because it would fail to build. (not enabled on Clear) It needs some other debugging things enabled like CONFIG_DEBUG_INFO, CONFIG_DEBUG_INFO_BTF, CONFIG_PAHOLE_HAS_SPLIT_BTF which will increase the size and compilation time. I can enable the debug info if others want it, but I would rather not.

As for dkms error, I just tried building random module (rtl88x2bu) and it builds fine. (gcc & llvm) Please specify which module/versions, etc. (whole build log)

SOLUTION: please fix the PKGBUILD, add this line, otherwise external DKMS modules can't be built:

install -Dt "$builddir/tools/bpf/resolve_btfids" tools/bpf/resolve_btfids/resolve_btfids

See diff in official linux package commit history.

Hey all! With LLVM compiled kernel (5.16.2), I get this error when I try to compile DKMS modules:

/bin/sh: line 1: ./tools/bpf/resolve_btfids/resolve_btfids: No such file or directory

This error is absent in linux-clear <=5.16.1.

GCC doesn't work either. I suspect this is a really silly mistake, but I can't fix it...

@metak Thank you!

@k0r0ng It's not enabled by default in CLR config file, I've enabled it in ˙5.15.14-1˙.