From 095aabe338d166f3a9c87bcc9b9b84ba80fdaddf Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Mon, 22 May 2023 08:24:49 +0200 Subject: [PATCH] efi/libstub: zboot: Avoid eager evaluation of objcopy flags The Make variable containing the objcopy flags may be constructed from the output of build tools operating on build artifacts, and these may not exist when doing a make clean. So avoid evaluating them eagerly, to prevent spurious build warnings. Suggested-by: Pedro Falcato Tested-by: Alan Bartlett Signed-off-by: Ard Biesheuvel --- drivers/firmware/efi/libstub/Makefile.zboot | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/efi/libstub/Makefile.zboot b/drivers/firmware/efi/libstub/Makefile.zboot index 89ef820..2c48962 100644 --- a/drivers/firmware/efi/libstub/Makefile.zboot +++ b/drivers/firmware/efi/libstub/Makefile.zboot @@ -32,7 +32,8 @@ zboot-size-len-$(CONFIG_KERNEL_GZIP) := 0 $(obj)/vmlinuz: $(obj)/vmlinux.bin FORCE $(call if_changed,$(zboot-method-y)) -OBJCOPYFLAGS_vmlinuz.o := -I binary -O $(EFI_ZBOOT_BFD_TARGET) $(EFI_ZBOOT_OBJCOPY_FLAGS) \ +# avoid eager evaluation to prevent references to non-existent build artifacts +OBJCOPYFLAGS_vmlinuz.o = -I binary -O $(EFI_ZBOOT_BFD_TARGET) $(EFI_ZBOOT_OBJCOPY_FLAGS) \ --rename-section .data=.gzdata,load,alloc,readonly,contents $(obj)/vmlinuz.o: $(obj)/vmlinuz FORCE $(call if_changed,objcopy) -- 2.7.4