OSCL-LXR

0001 # SPDX-License-Identifier: GPL-2.0
0002 obj-y  += main.o
0003
0004 # Create $(fwdir) from $(CONFIG_EXTRA_FIRMWARE_DIR) -- if it doesn't have a
0005 # leading /, it's relative to $(srctree).
0006 fwdir := $(CONFIG_EXTRA_FIRMWARE_DIR)
0007 fwdir := $(addprefix $(srctree)/,$(filter-out /%,$(fwdir)))$(filter /%,$(fwdir))
0008
0009 firmware  := $(addsuffix .gen.o, $(CONFIG_EXTRA_FIRMWARE))
0010 obj-y += $(firmware)
0011
0012 FWNAME    = $(patsubst $(obj)/%.gen.S,%,$@)
0013 FWSTR     = $(subst $(comma),_,$(subst /,_,$(subst .,_,$(subst -,_,$(FWNAME)))))
0014 ASM_WORD  = $(if $(CONFIG_64BIT),.quad,.long)
0015 ASM_ALIGN = $(if $(CONFIG_64BIT),3,2)
0016 PROGBITS  = $(if $(CONFIG_ARM),%,@)progbits
0017
0018 filechk_fwbin = \
0019         echo "/* Generated by $(src)/Makefile */"               ;\
0020         echo "    .section .rodata"                             ;\
0021         echo "    .p2align 4"                                   ;\
0022         echo "_fw_$(FWSTR)_bin:"                                ;\
0023         echo "    .incbin \"$(fwdir)/$(FWNAME)\""               ;\
0024         echo "_fw_end:"                                         ;\
0025         echo "    .section .rodata.str,\"aMS\",$(PROGBITS),1"   ;\
0026         echo "    .p2align $(ASM_ALIGN)"                        ;\
0027         echo "_fw_$(FWSTR)_name:"                               ;\
0028         echo "    .string \"$(FWNAME)\""                        ;\
0029         echo "    .section .builtin_fw,\"a\",$(PROGBITS)"       ;\
0030         echo "    .p2align $(ASM_ALIGN)"                        ;\
0031         echo "    $(ASM_WORD) _fw_$(FWSTR)_name"                ;\
0032         echo "    $(ASM_WORD) _fw_$(FWSTR)_bin"                 ;\
0033         echo "    $(ASM_WORD) _fw_end - _fw_$(FWSTR)_bin"
0034
0035 $(obj)/%.gen.S: FORCE
0036         $(call filechk,fwbin)
0037
0038 # The .o files depend on the binaries directly; the .S files don't.
0039 $(addprefix $(obj)/, $(firmware)): $(obj)/%.gen.o: $(fwdir)/%
0040
0041 targets := $(patsubst $(obj)/%,%, \
0042                                 $(shell find $(obj) -name \*.gen.S 2>/dev/null))