Merge remote-tracking branches 'asoc/fix/rt5663', 'asoc/fix/tlv320aic31xx' and 'asoc...
[sfrench/cifs-2.6.git] / firmware / Makefile
1 # SPDX-License-Identifier: GPL-2.0
2 #
3 # kbuild file for firmware/
4 #
5
6 # Create $(fwabs) from $(CONFIG_EXTRA_FIRMWARE_DIR) -- if it doesn't have a
7 # leading /, it's relative to $(srctree).
8 fwdir := $(subst $(quote),,$(CONFIG_EXTRA_FIRMWARE_DIR))
9 fwabs := $(addprefix $(srctree)/,$(filter-out /%,$(fwdir)))$(filter /%,$(fwdir))
10
11 fw-external-y := $(subst $(quote),,$(CONFIG_EXTRA_FIRMWARE))
12
13 quiet_cmd_fwbin = MK_FW   $@
14       cmd_fwbin = FWNAME="$(patsubst firmware/%.gen.S,%,$@)";                \
15                   FWSTR="$(subst /,_,$(subst .,_,$(subst -,_,$(patsubst      \
16                                 firmware/%.gen.S,%,$@))))";                  \
17                   ASM_WORD=$(if $(CONFIG_64BIT),.quad,.long);                \
18                   ASM_ALIGN=$(if $(CONFIG_64BIT),3,2);                       \
19                   PROGBITS=$(if $(CONFIG_ARM),%,@)progbits;                  \
20                   echo "/* Generated by firmware/Makefile */"           > $@;\
21                   echo "    .section .rodata"                           >>$@;\
22                   echo "    .p2align $${ASM_ALIGN}"                     >>$@;\
23                   echo "_fw_$${FWSTR}_bin:"                             >>$@;\
24                   echo "    .incbin \"$(2)\""                           >>$@;\
25                   echo "_fw_end:"                                       >>$@;\
26                   echo "   .section .rodata.str,\"aMS\",$${PROGBITS},1" >>$@;\
27                   echo "    .p2align $${ASM_ALIGN}"                     >>$@;\
28                   echo "_fw_$${FWSTR}_name:"                            >>$@;\
29                   echo "    .string \"$$FWNAME\""                       >>$@;\
30                   echo "    .section .builtin_fw,\"a\",$${PROGBITS}"    >>$@;\
31                   echo "    .p2align $${ASM_ALIGN}"                     >>$@;\
32                   echo "    $${ASM_WORD} _fw_$${FWSTR}_name"            >>$@;\
33                   echo "    $${ASM_WORD} _fw_$${FWSTR}_bin"             >>$@;\
34                   echo "    $${ASM_WORD} _fw_end - _fw_$${FWSTR}_bin"   >>$@;
35
36 # One of these files will change, or come into existence, whenever
37 # the configuration changes between 32-bit and 64-bit. The .S files
38 # need to change when that happens.
39 wordsize_deps := $(wildcard include/config/64bit.h include/config/32bit.h \
40                 include/config/ppc32.h include/config/ppc64.h \
41                 include/config/superh32.h include/config/superh64.h \
42                 include/config/x86_32.h include/config/x86_64.h \
43                 firmware/Makefile)
44
45 $(patsubst %,$(obj)/%.gen.S, $(fw-external-y)): %: $(wordsize_deps) \
46                 include/config/extra/firmware/dir.h
47         $(call cmd,fwbin,$(fwabs)/$(patsubst $(obj)/%.gen.S,%,$@))
48
49 # The .o files depend on the binaries directly; the .S files don't.
50 $(patsubst %,$(obj)/%.gen.o, $(fw-external-y)): $(obj)/%.gen.o: $(fwdir)/%
51
52 obj-y                            += $(patsubst %,%.gen.o, $(fw-external-y))
53
54 ifeq ($(KBUILD_SRC),)
55 # Makefile.build only creates subdirectories for O= builds, but external
56 # firmware might live outside the kernel source tree
57 _dummy := $(foreach d,$(addprefix $(obj)/,$(dir $(fw-external-y))), $(shell [ -d $(d) ] || mkdir -p $(d)))
58 endif
59
60 targets := $(patsubst $(obj)/%,%, \
61                                 $(shell find $(obj) -name \*.gen.S 2>/dev/null))