[build] Add efidrv.cab target for UEFI Secure Boot signing

Signed-off-by: Michael Brown <mcb30@ipxe.org>

src/Makefile

 EINFO		:= ./util/einfo
 GENKEYMAP	:= ./util/genkeymap.pl
 DOXYGEN		:= doxygen
+LCAB		:= lcab
 BINUTILS_DIR	:= /usr
 BFD_DIR		:= $(BINUTILS_DIR)
 ZLIB_DIR	:= /usr

src/Makefile.housekeeping

 #
 define media_template
 $(if $(filter $(1),$(AUTO_MEDIA)),$(call auto_media_template,$(1)))
-$$(BIN)/all$(1)s : $$(foreach DRIVER,$$(DRIVERS),$$(BIN)/$$(DRIVER).$(1))
+LIST_$(1) := $$(if $$(LIST_NAME_$(1)),$$($$(LIST_NAME_$(1))),$$(DRIVERS))
+ALL_$(1) = $$(foreach ITEM,$$(LIST_$(1)),$$(BIN)/$$(ITEM).$(1))
+$$(BIN)/all$(1)s : $$(ALL_$(1))
 $$(BIN)/allall : $$(BIN)/all$(1)s
 all$(1)s : $$(BIN)/all$(1)s
 allall : $$(BIN)/allall

src/arch/i386/Makefile.pcbios

 FINALISE_rom	= $(PERL) $(FIXROM)
 FINALISE_mrom	= $(FINALISE_rom)
 
-# Add per-ROM targets for "allroms"
+# Use $(ROMS) rather than $(DRIVERS) for "allroms" and "allmroms"
 #
-$(BIN)/allroms : $(foreach ROM,$(ROMS),$(BIN)/$(ROM).rom)
-$(BIN)/allmroms : $(foreach ROM,$(ROMS),$(BIN)/$(ROM).mrom)
-allroms : $(BIN)/allroms
-allmroms : $(BIN)/allmroms
+LIST_NAME_rom := ROMS
+LIST_NAME_mrom := ROMS
 
 # rule to make a non-emulation ISO boot image
 NON_AUTO_MEDIA	+= iso

src/arch/x86/Makefile.efi

 #
 NON_AUTO_MEDIA	+= efi
 NON_AUTO_MEDIA	+= efidrv
+NON_AUTO_MEDIA	+= drv.efi
+NON_AUTO_MEDIA	+= efirom
 
 # Rules for building EFI files
 #
 	$(QM)$(ECHO) "  [FINISH] $@"
 	$(Q)$(ELF2EFI) --subsystem=11 $< $@
 
+$(BIN)/%.drv.efi : $(BIN)/%.efidrv
+	$(QM)$(ECHO) "  [FINISH] $@"
+	$(Q)$(CP) $< $@
+
 $(BIN)/%.efirom : $(BIN)/%.efidrv $(EFIROM)
 	$(QM)$(ECHO) "  [FINISH] $@"
 	$(Q)$(EFIROM) -v $(TGT_PCI_VENDOR) -d $(TGT_PCI_DEVICE) $< $@
+
+$(BIN)/efidrv.cab : $(BIN)/alldrv.efis # $(ALL_drv.efi) is not yet defined
+	$(QM)$(ECHO) "  [CAB] $@"
+	$(Q)$(LCAB) -n -q $(ALL_drv.efi) $@