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- # SPDX-License-Identifier: GPL-2.0
- obj-y += main.o
- # Create $(fwdir) from $(CONFIG_EXTRA_FIRMWARE_DIR) -- if it doesn't have a
- # leading /, it's relative to $(srctree).
- fwdir := $(CONFIG_EXTRA_FIRMWARE_DIR)
- fwdir := $(addprefix $(srctree)/,$(filter-out /%,$(fwdir)))$(filter /%,$(fwdir))
- firmware := $(addsuffix .gen.o, $(CONFIG_EXTRA_FIRMWARE))
- obj-y += $(firmware)
- FWNAME = $(patsubst $(obj)/%.gen.S,%,$@)
- FWSTR = $(subst $(comma),_,$(subst /,_,$(subst .,_,$(subst -,_,$(FWNAME)))))
- ASM_WORD = $(if $(CONFIG_64BIT),.quad,.long)
- ASM_ALIGN = $(if $(CONFIG_64BIT),3,2)
- PROGBITS = $(if $(CONFIG_ARM),%,@)progbits
- filechk_fwbin = \
- echo "/* Generated by $(src)/Makefile */" ;\
- echo " .section .rodata" ;\
- echo " .p2align 4" ;\
- echo "_fw_$(FWSTR)_bin:" ;\
- echo " .incbin \"$(fwdir)/$(FWNAME)\"" ;\
- echo "_fw_end:" ;\
- echo " .section .rodata.str,\"aMS\",$(PROGBITS),1" ;\
- echo " .p2align $(ASM_ALIGN)" ;\
- echo "_fw_$(FWSTR)_name:" ;\
- echo " .string \"$(FWNAME)\"" ;\
- echo " .section .builtin_fw,\"a\",$(PROGBITS)" ;\
- echo " .p2align $(ASM_ALIGN)" ;\
- echo " $(ASM_WORD) _fw_$(FWSTR)_name" ;\
- echo " $(ASM_WORD) _fw_$(FWSTR)_bin" ;\
- echo " $(ASM_WORD) _fw_end - _fw_$(FWSTR)_bin"
- $(obj)/%.gen.S: FORCE
- $(call filechk,fwbin)
- # The .o files depend on the binaries directly; the .S files don't.
- $(addprefix $(obj)/, $(firmware)): $(obj)/%.gen.o: $(fwdir)/%
- targets := $(patsubst $(obj)/%,%, \
- $(shell find $(obj) -name \*.gen.S 2>/dev/null))
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