linux-kernel - Re: [ERROR] HELP NEEDED

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Message-ID: <ZSKcwGbe0ZDWSdHQ@debian.me>
Date:   Sun, 8 Oct 2023 19:12:48 +0700
From:   Bagas Sanjaya <bagasdotme@...il.com>
To:     Gilbert Adikankwu <gilbertadikankwu@...il.com>,
        Linux Outreachy <outreachy@...ts.linux.dev>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:     Julia Lawall <Julia.Lawall@...ia.fr>,
        Andy Lutomirski <luto@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>
Subject: Re: [ERROR] HELP NEEDED

On Sun, Oct 08, 2023 at 12:12:17AM +0100, Gilbert Adikankwu wrote:
> Hello fellow community member,
> 
> I'm trying to build the kernel on Ubuntu 22.04 LTS natively installed
> on my computer and I'm getting this error message:
> 
> arch/x86/entry/thunk_64.o: warning: objtool: missing symbol table
> make[2]: *** [scripts/Makefile.build:361: arch/x86/entry/thunk_64.o] Error 1
> make[2]: *** Deleting file 'arch/x86/entry/thunk_64.o'
> make[1]: *** [scripts/Makefile.build:497: arch/x86/entry] Error 2
> make: *** [Makefile:1764: arch/x86] Error 2
> 
> It seems like a file is missing but I don't know if that is possible
> because I just cloned the repository and didn't touch any file.
> 

You should always clean up the tree first (`make mrproper`), then do
the build as usual. To speed up build time, you can try copying your
current kernel configuration (can be found either in `/boot/` directory
or in `/proc/config.gz`), then trim it up with `make localmodconfig`.
Make sure that all options needed by your computer are enabled (you
may have to plug all peripherals available on your hand) as well as
options related to kernel subsystem/driver you're hacking. For more
information, see Documentation/admin-guide/quickly-build-trimmed-linux.rst.

Thanks.

-- 
An old man doll... just what I always wanted! - Clara

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