From: Michael Olbrich <m.olbrich@pengutronix.de>
To: Ian Abbott <abbotti@mev.co.uk>
Cc: ptxdist <ptxdist@pengutronix.de>
Subject: Re: [ptxdist] Getting error 'kernel' must depend on 'host-system-python3' for 'python3'!
Date: Thu, 28 Mar 2024 09:10:47 +0100 [thread overview]
Message-ID: <ZgUmB_o911YDK_Ut@pengutronix.de> (raw)
In-Reply-To: <4cfc5e0b-86fd-452d-8f1d-ea8a109673f1@mev.co.uk>
On Wed, Mar 27, 2024 at 05:17:21PM +0000, Ian Abbott wrote:
> I'm getting this error when trying to build a kernel that has "Kernel
> hacking > Compile-time checks and compiler options > Generate BTF typeinfo
> (DEBUG_INFO_BTF)" enabled in the configuration:
>
> --------------------------------------------------------------------
> ----------------------
> target: kernel.compile
> ----------------------
>
> make: Entering directory '/mnt/lindata/work/abbotti/ptxdist/projects/its-ipt4-demo/platform-its-ipt4-demo/build-target/linux-6.6.21'
> make[1]: Entering directory '/mnt/lindata/work/abbotti/ptxdist/projects/its-ipt4-demo/platform-its-ipt4-demo/build-target/linux-6.6.21-build'
> GEN Makefile
> DESCEND bpf/resolve_btfids
> CALL /mnt/lindata/work/abbotti/ptxdist/projects/its-ipt4-demo/platform-its-ipt4-demo/build-target/linux-6.6.21/scripts/checksyscalls.sh
> GEN /mnt/lindata/work/abbotti/ptxdist/projects/its-ipt4-demo/platform-its-ipt4-demo/build-target/linux-6.6.21-build/tools/bpf/resolve_btfids/libbpf/bpf_helper_defs.h
> INSTALL libsubcmd_headers
>
> 'kernel' must depend on 'host-system-python3' for 'python3'!
>
> make[5]: *** [Makefile:160: /mnt/lindata/work/abbotti/ptxdist/projects/its-ipt4-demo/platform-its-ipt4-demo/build-target/linux-6.6.21-build/tools/bpf/resolve_btfids/libbpf/bpf_helper_defs.h]
> Error 1
> make[5]: *** Deleting file '/mnt/lindata/work/abbotti/ptxdist/projects/its-ipt4-demo/platform-its-ipt4-demo/build-target/linux-6.6.21-build/tools/bpf/resolve_btfids/libbpf/bpf_helper_defs.h'
> make[4]: *** [Makefile:63: /mnt/lindata/work/abbotti/ptxdist/projects/its-ipt4-demo/platform-its-ipt4-demo/build-target/linux-6.6.21-build/tools/bpf/resolve_btfids//libbpf/libbpf.a]
> Error 2
> make[4]: *** Waiting for unfinished jobs....
> make[3]: *** [Makefile:76: bpf/resolve_btfids] Error 2
> make[2]: *** [/mnt/lindata/work/abbotti/ptxdist/projects/its-ipt4-demo/platform-its-ipt4-demo/build-target/linux-6.6.21/Makefile:1355:
> tools/bpf/resolve_btfids] Error 2
> make[1]: *** [/mnt/lindata/work/abbotti/ptxdist/projects/its-ipt4-demo/platform-its-ipt4-demo/build-target/linux-6.6.21/Makefile:234:
> __sub-make] Error 2
> make[1]: Leaving directory '/mnt/lindata/work/abbotti/ptxdist/projects/its-ipt4-demo/platform-its-ipt4-demo/build-target/linux-6.6.21-build'
> make: *** [Makefile:234: __sub-make] Error 2
> make: Leaving directory '/mnt/lindata/work/abbotti/ptxdist/projects/its-ipt4-demo/platform-its-ipt4-demo/build-target/linux-6.6.21'
> make: *** [/mnt/lindata/work/abbotti/ptxdist/ptxdist/ptxdist_git/ptxdist/rules/kernel.make:251: /home/abbotti/work/ptxdist/projects/its-ipt4-demo/platform-its-ipt4-demo/state/kernel.compile]
> Error 2
> --------------------------------------------------------------------
>
> I could live without it. It is required for RestrictFileSystems= in systemd
> service units according to
> <https://github.com/systemd/systemd/blob/main/README>. But is there an easy
> fix?
Put this in "platforms/kernel.fixup.in" in your BSP:
------------------------------->8----------------------------
## SECTION=base_kernel
config KERNEL
select HOST_SYSTEM_PYTHON3
------------------------------->8----------------------------
> I'm currently using ptxdist 2024.03.0 but is also reproducible on the
> ptxdist master branch.
We should add that dependency Upstream as well. Something like
config KERNEL_PYTHON3
prompt "ensure Python3 is available"
bool
help
Python3 is needed at build-time when CONFIG_DEBUG_INFO_BTF is
enabled.
Michael
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next prev parent reply other threads:[~2024-03-28 8:10 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-27 17:17 Ian Abbott
2024-03-28 8:10 ` Michael Olbrich [this message]
2024-03-28 10:59 ` Ian Abbott
2024-03-28 11:36 ` Ian Abbott
2024-03-28 11:52 ` Ian Abbott
2024-03-28 15:04 ` Michael Olbrich
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