| # SPDX-License-Identifier: GPL-2.0 |
| |
| # Create $(fwdir) from $(CONFIG_EXTRA_FIRMWARE_DIR) -- if it doesn't have a |
| # leading /, it's relative to $(srctree). |
| fwdir := $(subst $(quote),,$(CONFIG_EXTRA_FIRMWARE_DIR)) |
| fwdir := $(addprefix $(srctree)/,$(filter-out /%,$(fwdir)))$(filter /%,$(fwdir)) |
| |
| obj-y := $(addsuffix .gen.o, $(subst $(quote),,$(CONFIG_EXTRA_FIRMWARE))) |
| |
| FWNAME = $(patsubst $(obj)/%.gen.S,%,$@) |
| FWSTR = $(subst /,_,$(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 $(ASM_ALIGN)" ;\ |
| echo "_fw_$(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)/, $(obj-y)): $(obj)/%.gen.o: $(fwdir)/% |
| |
| targets := $(patsubst $(obj)/%,%, \ |
| $(shell find $(obj) -name \*.gen.S 2>/dev/null)) |