projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
| df85b2d7 | 2 | |
| 3470d9eb | 3 | # Create $(fwdir) from $(CONFIG_EXTRA_FIRMWARE_DIR) -- if it doesn't have a |
| df85b2d7 MT |
4 | # leading /, it's relative to $(srctree). |
| 5 | fwdir := $(subst $(quote),,$(CONFIG_EXTRA_FIRMWARE_DIR)) | |
| 3470d9eb MY |
6 | fwdir := $(addprefix $(srctree)/,$(filter-out /%,$(fwdir)))$(filter /%,$(fwdir)) |
| 7 | ||
| 8 | obj-y := $(addsuffix .gen.o, $(subst $(quote),,$(CONFIG_EXTRA_FIRMWARE))) | |
| 9 | ||
| 10 | FWNAME = $(patsubst $(obj)/%.gen.S,%,$@) | |
| 11 | FWSTR = $(subst /,_,$(subst .,_,$(subst -,_,$(FWNAME)))) | |
| 12 | ASM_WORD = $(if $(CONFIG_64BIT),.quad,.long) | |
| 13 | ASM_ALIGN = $(if $(CONFIG_64BIT),3,2) | |
| 14 | PROGBITS = $(if $(CONFIG_ARM),%,@)progbits | |
| 15 | ||
| 16 | filechk_fwbin = { \ | |
| 17 | echo "/* Generated by $(src)/Makefile */" ;\ | |
| 18 | echo " .section .rodata" ;\ | |
| 19 | echo " .p2align $(ASM_ALIGN)" ;\ | |
| 20 | echo "_fw_$(FWSTR)_bin:" ;\ | |
| 21 | echo " .incbin \"$(fwdir)/$(FWNAME)\"" ;\ | |
| 22 | echo "_fw_end:" ;\ | |
| 23 | echo " .section .rodata.str,\"aMS\",$(PROGBITS),1" ;\ | |
| 24 | echo " .p2align $(ASM_ALIGN)" ;\ | |
| 25 | echo "_fw_$(FWSTR)_name:" ;\ | |
| 26 | echo " .string \"$(FWNAME)\"" ;\ | |
| 27 | echo " .section .builtin_fw,\"a\",$(PROGBITS)" ;\ | |
| 28 | echo " .p2align $(ASM_ALIGN)" ;\ | |
| 29 | echo " $(ASM_WORD) _fw_$(FWSTR)_name" ;\ | |
| 30 | echo " $(ASM_WORD) _fw_$(FWSTR)_bin" ;\ | |
| 31 | echo " $(ASM_WORD) _fw_end - _fw_$(FWSTR)_bin" ;\ | |
| 32 | } | |
| 33 | ||
| 34 | $(obj)/%.gen.S: FORCE | |
| 35 | $(call filechk,fwbin) | |
| df85b2d7 MT |
36 | |
| 37 | # The .o files depend on the binaries directly; the .S files don't. | |
| 3470d9eb | 38 | $(addprefix $(obj)/, $(obj-y)): $(obj)/%.gen.o: $(fwdir)/% |
| df85b2d7 MT |
39 | |
| 40 | targets := $(patsubst $(obj)/%,%, \ | |
| 41 | $(shell find $(obj) -name \*.gen.S 2>/dev/null)) |