Hi all,
After merging the kbuild tree, today's linux-next build (x86_64
allmodconfig) produced this warning:
arch/x86/entry/vdso/Makefile:135: FORCE prerequisite is missing
arch/x86/entry/vdso/Makefile:135: FORCE prerequisite is missing
arch/x86/entry/vdso/Makefile:135: FORCE prerequisite is missing
Exposed by commit
0fc7db58e2a6 ("kbuild: warn if FORCE is missing for if_changed(_dep,_rule) and filechk")
Not sure why we need 3 of these :-(
--
Cheers,
Stephen Rothwell
On Fri, Aug 20, 2021 at 8:28 AM Stephen Rothwell [off-list ref] wrote:
Hi all,
After merging the kbuild tree, today's linux-next build (x86_64
allmodconfig) produced this warning:
arch/x86/entry/vdso/Makefile:135: FORCE prerequisite is missing
arch/x86/entry/vdso/Makefile:135: FORCE prerequisite is missing
arch/x86/entry/vdso/Makefile:135: FORCE prerequisite is missing
Exposed by commit
0fc7db58e2a6 ("kbuild: warn if FORCE is missing for if_changed(_dep,_rule) and filechk")
Not sure why we need 3 of these :-(
This is a pattern rule, which generates
vdso64.so, vdso32.so, and vdsox32.so
The warning is produced as a side-effect
of the recipe. That is why 3 warnings.
Otherwise, I do not know how to implement it.
BTW, a fix for x86 Makefile exists in the patchwork.
https://lore.kernel.org/patchwork/patch/1478798/
--
Best Regards
Masahiro Yamada