On Tue Nov 21, 2023 at 9:23 AM AEST, Masahiro Yamada wrote: > crtsavres.o is linked to modules. However, as explained in commit > d0e628cd817f ("kbuild: doc: clarify the difference between extra-y > and always-y"), 'make modules' does not build extra-y. > > For example, the following command fails: > > $ make ARCH=powerpc LLVM=1 KBUILD_MODPOST_WARN=1 mrproper ps3_defconfig > modules > [snip] > LD [M] arch/powerpc/platforms/cell/spufs/spufs.ko > ld.lld: error: cannot open arch/powerpc/lib/crtsavres.o: No such file or > directory > make[3]: *** [scripts/Makefile.modfinal:56: > arch/powerpc/platforms/cell/spufs/spufs.ko] Error 1 > make[2]: *** [Makefile:1844: modules] Error 2 > make[1]: *** [/home/masahiro/workspace/linux-kbuild/Makefile:350: > __build_one_by_one] Error 2 > make: *** [Makefile:234: __sub-make] Error 2 >
Thanks. Is this the correct Fixes tag? Fixes: d0e628cd817f ("powerpc/64: Do not link crtsavres.o in vmlinux") Hmm, looks like LLD might just do this now automatically for us too without --save-restore-funcs (https://reviews.llvm.org/D79977). But we probably still need it for older versions, so we still need your patch. Reviewed-by: Nicholas Piggin <npig...@gmail.com> > Signed-off-by: Masahiro Yamada <masahi...@kernel.org> > --- > > arch/powerpc/lib/Makefile | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile > index 51ad0397c17a..6eac63e79a89 100644 > --- a/arch/powerpc/lib/Makefile > +++ b/arch/powerpc/lib/Makefile > @@ -45,7 +45,7 @@ obj-$(CONFIG_FUNCTION_ERROR_INJECTION) += > error-inject.o > # so it is only needed for modules, and only for older linkers which > # do not support --save-restore-funcs > ifndef CONFIG_LD_IS_BFD > -extra-$(CONFIG_PPC64) += crtsavres.o > +always-$(CONFIG_PPC64) += crtsavres.o > endif > > obj-$(CONFIG_PPC_BOOK3S_64) += copyuser_power7.o copypage_power7.o \