On Tue, Jul 19, 2022 at 5:41 PM Jiri Slaby <jslaby@xxxxxxx> wrote: > > From: Martin Liska <mliska@xxxxxxx> > > Prefix command in makefile run in order to preserve access to jobserver. > This is needed for gcc at least. > > Fixes this warning: > lto-wrapper: warning: jobserver is not available: ‘--jobserver-auth=’ is not present in ‘MAKEFLAGS’ What is lto-wrapper ? > > Cc: Sedat Dilek <sedat.dilek@xxxxxxxxx> > Cc: Masahiro Yamada <masahiroy@xxxxxxxxxx> > Cc: Michal Marek <michal.lkml@xxxxxxxxxxx> > Cc: Nick Desaulniers <ndesaulniers@xxxxxxxxxx> > Fixes: 5d45950dfbb1 (kbuild: move vmlinux.o link to scripts/Makefile.vmlinux_o) > Signed-off-by: Martin Liska <mliska@xxxxxxx> > Signed-off-by: Jiri Slaby <jslaby@xxxxxxx> > --- > > Notes: > [v2] this is new in v2 > > scripts/Makefile.build | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/scripts/Makefile.build b/scripts/Makefile.build > index bb63374fb055..493f3c4e8461 100644 > --- a/scripts/Makefile.build > +++ b/scripts/Makefile.build > @@ -247,8 +247,8 @@ endef > > # Built-in and composite module parts > $(obj)/%.o: $(src)/%.c $(recordmcount_source) FORCE > - $(call if_changed_rule,cc_o_c) > - $(call cmd,force_checksrc) > + +$(call if_changed_rule,cc_o_c) > + +$(call cmd,force_checksrc) cmd_force_checksrc invokes sparse. How is it related to GCC? > > # To make this rule robust against "Argument list too long" error, > # ensure to add $(obj)/ prefix by a shell command. > @@ -457,7 +457,7 @@ endef > $(multi-obj-m): objtool-enabled := $(delay-objtool) > $(multi-obj-m): part-of-module := y > $(multi-obj-m): %.o: %.mod FORCE > - $(call if_changed_rule,ld_multi_m) > + +$(call if_changed_rule,ld_multi_m) > $(call multi_depend, $(multi-obj-m), .o, -objs -y -m) cmd_ld_multi_m invokes $(LD) directly. How is it related to gcc? > > targets := $(filter-out $(PHONY), $(targets)) > -- > 2.37.1 > -- Best Regards Masahiro Yamada
