On Wed, 15 Jul 2020 at 06:26, Arvind Sankar <nivedita@xxxxxxxxxxxx> wrote: > > vmlinux-objs-y is added to targets, which currently means that the EFI > stub gets added to the targets as well. It shouldn't be added since it > is built elsewhere. > > This confuses Makefile.build which interprets the EFI stub as a target > $(obj)/$(objtree)/drivers/firmware/efi/libstub/lib.a > and will create drivers/firmware/efi/libstub/ underneath > arch/x86/boot/compressed, to hold this supposed target, if building > out-of-tree. [0] > > Fix this by pulling the stub out of vmlinux-objs-y into efi-obj-y. > > [0] See scripts/Makefile.build near the end: > # Create directories for object files if they do not exist > > Signed-off-by: Arvind Sankar <nivedita@xxxxxxxxxxxx> Acked-by: Ard Biesheuvel <ardb@xxxxxxxxxx> > --- > arch/x86/boot/compressed/Makefile | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile > index 7619742f91c9..5a828fde7a42 100644 > --- a/arch/x86/boot/compressed/Makefile > +++ b/arch/x86/boot/compressed/Makefile > @@ -90,8 +90,8 @@ endif > > vmlinux-objs-$(CONFIG_ACPI) += $(obj)/acpi.o > > -vmlinux-objs-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a > vmlinux-objs-$(CONFIG_EFI_MIXED) += $(obj)/efi_thunk_$(BITS).o > +efi-obj-$(CONFIG_EFI_STUB) = $(objtree)/drivers/firmware/efi/libstub/lib.a > > # The compressed kernel is built with -fPIC/-fPIE so that a boot loader > # can place it anywhere in memory and it will still run. However, since > @@ -115,7 +115,7 @@ endef > quiet_cmd_check-and-link-vmlinux = LD $@ > cmd_check-and-link-vmlinux = $(cmd_check_data_rel); $(cmd_ld) > > -$(obj)/vmlinux: $(vmlinux-objs-y) FORCE > +$(obj)/vmlinux: $(vmlinux-objs-y) $(efi-obj-y) FORCE > $(call if_changed,check-and-link-vmlinux) > > OBJCOPYFLAGS_vmlinux.bin := -R .comment -S > -- > 2.26.2 >
