With this patch an EFI application can be built out of multiple source files.
All object files that are to be included into the EFI application %.efi must be added to variable %-objs. E.g.
helloworld-objs = helloworld.o
script/Makefile.lib automatically generates file %_efi.d containing the dependency definition.
This file is included in the next run of make. From now on all objects in %-objs are built.
The %_efi.d file should be included in the source distribution.
After adding a new file to %-objs the first make run will fail due to the outdated %_efi.d file.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- v2 new patch --- lib/efi_loader/Makefile | 3 +++ lib/efi_loader/helloworld_efi.d | 1 + scripts/Makefile.lib | 12 ++++++++++-- 3 files changed, 14 insertions(+), 2 deletions(-) create mode 100644 lib/efi_loader/helloworld_efi.d
diff --git a/lib/efi_loader/Makefile b/lib/efi_loader/Makefile index 5200497230..d6a9635cc8 100644 --- a/lib/efi_loader/Makefile +++ b/lib/efi_loader/Makefile @@ -10,6 +10,9 @@ CFLAGS_helloworld.o := $(CFLAGS_EFI) CFLAGS_REMOVE_helloworld.o := $(CFLAGS_NON_EFI)
+helloworld-objs = \ +helloworld.o + ifneq ($(CONFIG_CMD_BOOTEFI_HELLO_COMPILE),) always += helloworld.efi endif diff --git a/lib/efi_loader/helloworld_efi.d b/lib/efi_loader/helloworld_efi.d new file mode 100644 index 0000000000..892db64c8b --- /dev/null +++ b/lib/efi_loader/helloworld_efi.d @@ -0,0 +1 @@ +lib/efi_loader/helloworld_efi.d: lib/efi_loader/helloworld.o diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index ebc74f8987..1a9f32902d 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -373,14 +373,22 @@ $(obj)/%.efi: $(obj)/%_efi.so
quiet_cmd_efi_ld = LD $@ cmd_efi_ld = $(LD) -nostdlib -znocombreloc -T $(EFI_LDS_PATH) -shared \ - -Bsymbolic $^ -o $@ + -Bsymbolic $(foreach _s, $($*-objs), $(obj)/$(_s)) -o $@
EFI_LDS_PATH = $(srctree)/arch/$(ARCH)/lib/$(EFI_LDS)
-$(obj)/%_efi.so: $(obj)/%.o arch/$(ARCH)/lib/$(EFI_CRT0) \ +.PRECIOUS: $(obj)/%_efi.d + +$(obj)/%_efi.so: $(obj)/%.o $(obj)/%.d arch/$(ARCH)/lib/$(EFI_CRT0) \ arch/$(ARCH)/lib/$(EFI_RELOC) + @echo $(obj)/$*_efi.d: $(foreach _s, $($*-objs), $(obj)/$(_s)) \ + > $(obj)/$*_efi.d $(call cmd,efi_ld)
+$(obj)/%.d:; + +include $(wildcard $(foreach _s, $(filter %_efi.o, $(obj-y)), $(_s:.o=.d))) + # ACPI # --------------------------------------------------------------------------- quiet_cmd_acpi_c_asl= ASL $<