Re: [PATCH v4.1 00/10] x86/entry/vdso: clean up the vdso build, vdso updates

On January 14, 2026 11:00:55 PM PST, Thorsten Leemhuis <[email protected]> wrote:
>[stripped down the list of recipients quite a bit] 
>
>On 1/6/26 22:18, H. Peter Anvin wrote:
>> [...]
>> This patchset cleans up the vdso build by building the 32- and 64-bit
>> vdsos in separate directories, moving the vdso2c tool to
>> arch/x86/tools, and by merging common code and especially Makefile
>> rules between the 32- and 64-bit vdsos to the greatest extent
>> possible. [...]
>
>Lo! My daily -next builds for Fedora failed on x86_64 (other archs
>worked fine). Haven't checked, but from the error message I wonder
>if this might be due to the changes from this patch-set that showed
>up in -next today:
>
>+ /usr/bin/make -s 'HOSTCFLAGS=-O2  -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2    ' 'HOSTLDFLAGS=-Wl,-z,relro -Wl,--as-needed  -Wl,-z,pack-relative-relocs -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-hardened-ld-errors -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -Wl,--build-id=sha1 -specs=/usr/lib/rpm/redhat/redhat-package-notes  ' ARCH=x86_64 INSTALL_MOD_PATH=/builddir/build/BUILD/kernel-6.19.0-build/BUILDROOT vdso_install KERNELRELEASE=6.19.0-0.0.next.20260115.439.vanilla.fc44.x86_64+rt
>readelf: Error: 'arch/x86/entry/vdso/vdso32.so.dbg': No such file
>readelf: Error: 'arch/x86/entry/vdso/vdso64.so.dbg': No such file
>scripts/Makefile.vdsoinst:33: warning: overriding recipe for target '/builddir/build/BUILD/kernel-6.19.0-build/BUILDROOT/lib/modules/6.19.0-0.0.next.20260115.439.vanilla.fc44.x86_64+rt/vdso/.build-id/.debug'
>scripts/Makefile.vdsoinst:33: warning: ignoring old recipe for target '/builddir/build/BUILD/kernel-6.19.0-build/BUILDROOT/lib/modules/6.19.0-0.0.next.20260115.439.vanilla.fc44.x86_64+rt/vdso/.build-id/.debug'
>make[2]: *** No rule to make target 'arch/x86/entry/vdso/vdso32.so.dbg', needed by '/builddir/build/BUILD/kernel-6.19.0-build/BUILDROOT/lib/modules/6.19.0-0.0.next.20260115.439.vanilla.fc44.x86_64+rt/vdso/vdso32.so'.  Stop.
>make[1]: *** [/builddir/build/BUILD/kernel-6.19.0-build/kernel-next-20260115/linux-6.19.0-0.0.next.20260115.439.vanilla.fc44.x86_64/Makefile:1459: vdso_install] Error 2
>make: *** [Makefile:256: __sub-make] Error 2
>
>Full log:
>https://download.copr.fedorainfracloud.org/results/@kernel-vanilla/next/fedora-rawhide-x86_64/10010857-next-next-all/builder-live.log.gz
>
>Ciao, Thorsten

Looks like it. Specifically it looks like it needs a tweak to make vdso_install. I'll look at it in a few hours.