On Tue, Jul 19, 2022 at 5:41 PM Jiri Slaby <jslaby@xxxxxxx> wrote: > > Until the link-vmlinux.sh split (cf. the commit below), the linker was > run with jobserver set in MAKEFLAGS. After the split, the command in > Makefile.vmlinux_o is not prefixed by "+" anymore, so this information > is lost. > > Restore it as linkers working in parallel (esp. the LTO ones) make a use > of it. In this case, it is gcc producing this warning otherwise: > lto-wrapper: warning: jobserver is not available: ‘--jobserver-auth=’ is not present in ‘MAKEFLAGS’ > > Cc: Sedat Dilek <sedat.dilek@xxxxxxxxx> > Cc: Masahiro Yamada <masahiroy@xxxxxxxxxx> > Cc: Michal Marek <michal.lkml@xxxxxxxxxxx> > Cc: Nick Desaulniers <ndesaulniers@xxxxxxxxxx> > Cc: Signed-off-by: Martin Liska <mliska@xxxxxxx> > Fixes: 5d45950dfbb1 (kbuild: move vmlinux.o link to scripts/Makefile.vmlinux_o) > Signed-off-by: Jiri Slaby <jslaby@xxxxxxx> > --- > > Notes: > [v2] only commit message updated Did you read my previous email? https://lore.kernel.org/linux-kbuild/CAK7LNAS46hrVh3FNiHHL8_Hqp85VgWnsHyjQ4t-TFH_H344NOg@xxxxxxxxxxxxxx/ > > scripts/Makefile.vmlinux_o | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/scripts/Makefile.vmlinux_o b/scripts/Makefile.vmlinux_o > index 84019814f33f..886db0659d9c 100644 > --- a/scripts/Makefile.vmlinux_o > +++ b/scripts/Makefile.vmlinux_o > @@ -65,7 +65,7 @@ define rule_ld_vmlinux.o > endef > > vmlinux.o: $(initcalls-lds) $(KBUILD_VMLINUX_OBJS) $(KBUILD_VMLINUX_LIBS) FORCE > - $(call if_changed_rule,ld_vmlinux.o) > + +$(call if_changed_rule,ld_vmlinux.o) > > targets += vmlinux.o > > -- > 2.37.1 > -- Best Regards Masahiro Yamada
