diff options
Diffstat (limited to 'drivers/base/firmware_loader/builtin/Makefile')
| -rw-r--r-- | drivers/base/firmware_loader/builtin/Makefile | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/base/firmware_loader/builtin/Makefile b/drivers/base/firmware_loader/builtin/Makefile new file mode 100644 index 000000000..6c067dedc --- /dev/null +++ b/drivers/base/firmware_loader/builtin/Makefile @@ -0,0 +1,42 @@ +# 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)) |