scripts/Makefile.lib: generalize building built in EFI app

Replace all occurences of helloworld by generalized forms.
This allows us to build additional EFI applications that are
included into the U-Boot binary without loading
scripts/Makefile.lib with specific filenames.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

scripts/Makefile.lib

@@ -359,20 +359,22 @@ cmd_S_ttf=						\
 $(obj)/%.S: $(src)/%.ttf
 	$(call cmd,S_ttf)
 
-# EFI Hello World application
+# EFI applications
+# A Makefile target *.efi is built as EFI application.
+# A Makefile target *_efi.S wraps *.efi as built-in EFI application.
 # ---------------------------------------------------------------------------
 
 # Generate an assembly file to wrap the EFI app
-cmd_S_efi=						\
-(							\
-	echo '.section .rodata.efi.init,"a"';		\
-	echo '.balign 16';				\
-	echo '.global __efi_helloworld_begin';		\
-	echo '__efi_helloworld_begin:';		\
-	echo '.incbin "$<" ';				\
-	echo '__efi_helloworld_end:';			\
-	echo '.global __efi_helloworld_end';		\
-	echo '.balign 16';				\
+cmd_S_efi=					\
+(						\
+	echo '.section .rodata.$*.init,"a"';	\
+	echo '.balign 16';			\
+	echo '.global __efi_$*_begin';		\
+	echo '__efi_$*_begin:';			\
+	echo '.incbin "$<" ';			\
+	echo '__efi_$*_end:';			\
+	echo '.global __efi_$*_end';		\
+	echo '.balign 16';			\
 ) > $@
 
 $(obj)/%_efi.S: $(obj)/%.efi
@@ -383,7 +385,7 @@ cmd_efi_objcopy = $(OBJCOPY) -j .header -j .text -j .sdata -j .data -j \
 		.dynamic -j .dynsym  -j .rel* -j .rela* -j .reloc \
 		$(if $(EFI_TARGET),$(EFI_TARGET),-O binary) $^ $@
 
-$(obj)/%.efi: $(obj)/%.so
+$(obj)/%.efi: $(obj)/%_efi.so
 	$(call cmd,efi_objcopy)
 
 quiet_cmd_efi_ld = LD      $@
@@ -392,7 +394,7 @@ cmd_efi_ld = $(LD) -nostdlib -znocombreloc -T $(EFI_LDS_PATH) -shared \
 
 EFI_LDS_PATH = $(srctree)/arch/$(ARCH)/lib/$(EFI_LDS)
 
-$(obj)/helloworld.so: $(obj)/helloworld.o arch/$(ARCH)/lib/$(EFI_CRT0) \
+$(obj)/%_efi.so: $(obj)/%.o arch/$(ARCH)/lib/$(EFI_CRT0) \
 		arch/$(ARCH)/lib/$(EFI_RELOC)
 	$(call cmd,efi_ld)