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Juan Castilloa3487d12015-08-18 14:23:04 +01001#
Masahiro Yamadac7517052018-01-26 11:42:01 +09002# Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
Juan Castilloa3487d12015-08-18 14:23:04 +01003#
dp-armfa3cf0b2017-05-03 09:38:09 +01004# SPDX-License-Identifier: BSD-3-Clause
Juan Castilloa3487d12015-08-18 14:23:04 +01005#
6
Evan Lloyd870a18c2015-12-02 18:41:22 +00007# Report an error if the eval make function is not available.
8$(eval eval_available := T)
9ifneq (${eval_available},T)
10 $(error This makefile only works with a Make program that supports $$(eval))
11endif
12
Evan Lloydf2697142015-12-02 18:17:37 +000013# Some utility macros for manipulating awkward (whitespace) characters.
14blank :=
15space :=${blank} ${blank}
16
17# A user defined function to recursively search for a filename below a directory
18# $1 is the directory root of the recursive search (blank for current directory).
19# $2 is the file name to search for.
20define rwildcard
21$(strip $(foreach d,$(wildcard ${1}*),$(call rwildcard,${d}/,${2}) $(filter $(subst *,%,%${2}),${d})))
22endef
23
Yatharth Kochar115352c2015-10-02 13:58:52 +010024# This table is used in converting lower case to upper case.
25uppercase_table:=a,A b,B c,C d,D e,E f,F g,G h,H i,I j,J k,K l,L m,M n,N o,O p,P q,Q r,R s,S t,T u,U v,V w,W x,X y,Y z,Z
26
27# Internal macro used for converting lower case to upper case.
28# $(1) = upper case table
29# $(2) = String to convert
30define uppercase_internal
31$(if $(1),$$(subst $(firstword $(1)),$(call uppercase_internal,$(wordlist 2,$(words $(1)),$(1)),$(2))),$(2))
32endef
33
34# A macro for converting a string to upper case
35# $(1) = String to convert
36define uppercase
37$(eval uppercase_result:=$(call uppercase_internal,$(uppercase_table),$(1)))$(uppercase_result)
38endef
39
Juan Castilloa3487d12015-08-18 14:23:04 +010040# Convenience function for adding build definitions
41# $(eval $(call add_define,FOO)) will have:
42# -DFOO if $(FOO) is empty; -DFOO=$(FOO) otherwise
43define add_define
44 DEFINES += -D$(1)$(if $(value $(1)),=$(value $(1)),)
45endef
46
Soren Brinkmann9efe6572016-06-09 13:36:27 -070047# Convenience function for adding build definitions
48# $(eval $(call add_define_val,FOO,BAR)) will have:
49# -DFOO=BAR
50define add_define_val
51 DEFINES += -D$(1)=$(2)
52endef
53
Juan Castilloa3487d12015-08-18 14:23:04 +010054# Convenience function for verifying option has a boolean value
55# $(eval $(call assert_boolean,FOO)) will assert FOO is 0 or 1
56define assert_boolean
Masahiro Yamada1ab9e922017-05-23 23:45:01 +090057 $(if $(filter-out 0 1,$($1)),$(error $1 must be boolean))
Juan Castilloa3487d12015-08-18 14:23:04 +010058endef
59
Jeenu Viswambharanfca76802017-01-16 16:52:35 +0000600-9 := 0 1 2 3 4 5 6 7 8 9
61
62# Function to verify that a given option $(1) contains a numeric value
63define assert_numeric
64$(if $($(1)),,$(error $(1) must not be empty))
65$(eval __numeric := $($(1)))
66$(foreach d,$(0-9),$(eval __numeric := $(subst $(d),,$(__numeric))))
67$(if $(__numeric),$(error $(1) must be numeric))
68endef
69
Juan Castilloa3487d12015-08-18 14:23:04 +010070# IMG_LINKERFILE defines the linker script corresponding to a BL stage
71# $(1) = BL stage (2, 30, 31, 32, 33)
72define IMG_LINKERFILE
73 ${BUILD_DIR}/bl$(1).ld
74endef
75
76# IMG_MAPFILE defines the output file describing the memory map corresponding
77# to a BL stage
78# $(1) = BL stage (2, 30, 31, 32, 33)
79define IMG_MAPFILE
80 ${BUILD_DIR}/bl$(1).map
81endef
82
83# IMG_ELF defines the elf file corresponding to a BL stage
84# $(1) = BL stage (2, 30, 31, 32, 33)
85define IMG_ELF
86 ${BUILD_DIR}/bl$(1).elf
87endef
88
89# IMG_DUMP defines the symbols dump file corresponding to a BL stage
90# $(1) = BL stage (2, 30, 31, 32, 33)
91define IMG_DUMP
92 ${BUILD_DIR}/bl$(1).dump
93endef
94
95# IMG_BIN defines the default image file corresponding to a BL stage
96# $(1) = BL stage (2, 30, 31, 32, 33)
97define IMG_BIN
98 ${BUILD_PLAT}/bl$(1).bin
99endef
100
Masahiro Yamada6c2b4592018-01-26 11:42:01 +0900101# TOOL_ADD_PAYLOAD appends the command line arguments required by fiptool to
102# package a new payload and/or by cert_create to generate certificate.
103# Optionally, it adds the dependency on this payload
Juan Castilloa3487d12015-08-18 14:23:04 +0100104# $(1) = payload filename (i.e. bl31.bin)
Masahiro Yamadac85deee2017-12-23 23:56:18 +0900105# $(2) = command line option for the specified payload (i.e. --soc-fw)
Masahiro Yamada5c3ae332018-01-26 11:42:01 +0900106# $(3) = tool target dependency (optional) (ex. build/fvp/release/bl31.bin)
Masahiro Yamadacd7711d2018-01-26 11:42:01 +0900107# $(4) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip)
Masahiro Yamada6c2b4592018-01-26 11:42:01 +0900108define TOOL_ADD_PAYLOAD
Masahiro Yamada714a6922018-01-26 11:42:01 +0900109 $(4)FIP_ARGS += $(2) $(1)
110 $(if $(3),$(4)FIP_DEPS += $(3))
Masahiro Yamadaec154ad2018-01-26 11:42:01 +0900111 $(4)CRT_ARGS += $(2) $(1)
112 $(if $(3),$(4)CRT_DEPS += $(3))
Juan Castilloa3487d12015-08-18 14:23:04 +0100113endef
114
Masahiro Yamadabfb64ac2018-02-01 16:31:09 +0900115# TOOL_ADD_IMG_PAYLOAD works like TOOL_ADD_PAYLOAD, but applies image filters
116# before passing them to host tools if BL*_PRE_TOOL_FILTER is defined.
117# $(1) = image_type (scp_bl2, bl33, etc.)
118# $(2) = payload filepath (ex. build/fvp/release/bl31.bin)
119# $(3) = command line option for the specified payload (ex. --soc-fw)
120# $(4) = tool target dependency (optional) (ex. build/fvp/release/bl31.bin)
121# $(5) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip)
122
123define TOOL_ADD_IMG_PAYLOAD
124
125$(eval PRE_TOOL_FILTER := $($(call uppercase,$(1))_PRE_TOOL_FILTER))
126
127ifneq ($(PRE_TOOL_FILTER),)
128
129$(eval PROCESSED_PATH := $(BUILD_PLAT)/$(1).bin$($(PRE_TOOL_FILTER)_SUFFIX))
130
131$(call $(PRE_TOOL_FILTER)_RULE,$(PROCESSED_PATH),$(2))
132
133$(PROCESSED_PATH): $(4)
134
135$(call TOOL_ADD_PAYLOAD,$(PROCESSED_PATH),$(3),$(PROCESSED_PATH),$(5))
136
137else
138$(call TOOL_ADD_PAYLOAD,$(2),$(3),$(4),$(5))
139endif
140endef
141
Yatharth Kochard1a93432015-10-12 12:33:47 +0100142# CERT_ADD_CMD_OPT adds a new command line option to the cert_create invocation
Juan Castilloa3487d12015-08-18 14:23:04 +0100143# $(1) = parameter filename
144# $(2) = cert_create command line option for the specified parameter
Masahiro Yamada5ebfda32018-01-26 11:42:01 +0900145# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip)
Juan Castilloa3487d12015-08-18 14:23:04 +0100146define CERT_ADD_CMD_OPT
Masahiro Yamada5ebfda32018-01-26 11:42:01 +0900147 $(3)CRT_ARGS += $(2) $(1)
Juan Castilloa3487d12015-08-18 14:23:04 +0100148endef
149
Masahiro Yamada4d156802018-01-26 11:42:01 +0900150# TOOL_ADD_IMG allows the platform to specify an external image to be packed
151# in the FIP and/or for which certificate is generated. It also adds a
152# dependency on the image file, aborting the build if the file does not exist.
Masahiro Yamada9c5ca522018-01-26 11:42:01 +0900153# $(1) = image_type (scp_bl2, bl33, etc.)
Masahiro Yamadac85deee2017-12-23 23:56:18 +0900154# $(2) = command line option for fiptool (--scp-fw, --nt-fw, etc)
Masahiro Yamadacd7711d2018-01-26 11:42:01 +0900155# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip)
Juan Castilloa3487d12015-08-18 14:23:04 +0100156# Example:
Masahiro Yamada9c5ca522018-01-26 11:42:01 +0900157# $(eval $(call TOOL_ADD_IMG,bl33,--nt-fw))
Masahiro Yamada4d156802018-01-26 11:42:01 +0900158define TOOL_ADD_IMG
Masahiro Yamada9c5ca522018-01-26 11:42:01 +0900159 # Build option to specify the image filename (SCP_BL2, BL33, etc)
160 # This is the uppercase form of the first parameter
161 $(eval _V := $(call uppercase,$(1)))
162
Masahiro Yamada714a6922018-01-26 11:42:01 +0900163 $(3)CRT_DEPS += check_$(1)
164 $(3)FIP_DEPS += check_$(1)
Masahiro Yamadabfb64ac2018-02-01 16:31:09 +0900165 $(call TOOL_ADD_IMG_PAYLOAD,$(1),$(value $(_V)),$(2),,$(3))
Juan Castilloa3487d12015-08-18 14:23:04 +0100166
Masahiro Yamada9dff1562017-12-24 13:08:00 +0900167.PHONY: check_$(1)
Juan Castilloa3487d12015-08-18 14:23:04 +0100168check_$(1):
Masahiro Yamada9c5ca522018-01-26 11:42:01 +0900169 $$(if $(value $(_V)),,$$(error "Platform '${PLAT}' requires $(_V). Please set $(_V) to point to the right file"))
170 $$(if $(wildcard $(value $(_V))),,$$(error '$(_V)=$(value $(_V))' was specified, but '$(value $(_V))' does not exist))
Juan Castilloa3487d12015-08-18 14:23:04 +0100171endef
172
Juan Castilloa3487d12015-08-18 14:23:04 +0100173################################################################################
Masahiro Yamadaeff36a92018-01-26 11:42:01 +0900174# Generic image processing filters
175################################################################################
176
177# GZIP
178define GZIP_RULE
179$(1): $(2)
180 @echo " GZIP $$@"
181 $(Q)gzip -n -f -9 $$< --stdout > $$@
182endef
183
184GZIP_SUFFIX := .gz
185
186################################################################################
Juan Castilloa3487d12015-08-18 14:23:04 +0100187# Auxiliary macros to build TF images from sources
188################################################################################
189
Masahiro Yamadae487bb62016-12-22 15:23:05 +0900190MAKE_DEP = -Wp,-MD,$(DEP) -MT $$@ -MP
Juan Castilloa3487d12015-08-18 14:23:04 +0100191
192# MAKE_C builds a C source file and generates the dependency file
193# $(1) = output directory
194# $(2) = source file (%.c)
Yatharth Kochar115352c2015-10-02 13:58:52 +0100195# $(3) = BL stage (2, 2u, 30, 31, 32, 33)
Juan Castilloa3487d12015-08-18 14:23:04 +0100196define MAKE_C
197
198$(eval OBJ := $(1)/$(patsubst %.c,%.o,$(notdir $(2))))
Masahiro Yamada56c53f62016-12-22 14:02:27 +0900199$(eval DEP := $(patsubst %.o,%.d,$(OBJ)))
Yatharth Kochar115352c2015-10-02 13:58:52 +0100200$(eval IMAGE := IMAGE_BL$(call uppercase,$(3)))
Juan Castilloa3487d12015-08-18 14:23:04 +0100201
Stephen Warrenc4d562a2018-02-21 17:13:50 -0700202$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | bl$(3)_dirs
Juan Castilloa3487d12015-08-18 14:23:04 +0100203 @echo " CC $$<"
Masahiro Yamada56c53f62016-12-22 14:02:27 +0900204 $$(Q)$$(CC) $$(TF_CFLAGS) $$(CFLAGS) -D$(IMAGE) $(MAKE_DEP) -c $$< -o $$@
Juan Castilloa3487d12015-08-18 14:23:04 +0100205
Masahiro Yamada56c53f62016-12-22 14:02:27 +0900206-include $(DEP)
Juan Castilloa3487d12015-08-18 14:23:04 +0100207
208endef
209
210
211# MAKE_S builds an assembly source file and generates the dependency file
212# $(1) = output directory
213# $(2) = assembly file (%.S)
Yatharth Kochar115352c2015-10-02 13:58:52 +0100214# $(3) = BL stage (2, 2u, 30, 31, 32, 33)
Juan Castilloa3487d12015-08-18 14:23:04 +0100215define MAKE_S
216
217$(eval OBJ := $(1)/$(patsubst %.S,%.o,$(notdir $(2))))
Masahiro Yamada56c53f62016-12-22 14:02:27 +0900218$(eval DEP := $(patsubst %.o,%.d,$(OBJ)))
Yatharth Kochar115352c2015-10-02 13:58:52 +0100219$(eval IMAGE := IMAGE_BL$(call uppercase,$(3)))
Juan Castilloa3487d12015-08-18 14:23:04 +0100220
Stephen Warrenc4d562a2018-02-21 17:13:50 -0700221$(OBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | bl$(3)_dirs
Juan Castilloa3487d12015-08-18 14:23:04 +0100222 @echo " AS $$<"
Masahiro Yamada56c53f62016-12-22 14:02:27 +0900223 $$(Q)$$(AS) $$(ASFLAGS) -D$(IMAGE) $(MAKE_DEP) -c $$< -o $$@
Juan Castilloa3487d12015-08-18 14:23:04 +0100224
Masahiro Yamada56c53f62016-12-22 14:02:27 +0900225-include $(DEP)
Juan Castilloa3487d12015-08-18 14:23:04 +0100226
227endef
228
229
230# MAKE_LD generate the linker script using the C preprocessor
231# $(1) = output linker script
232# $(2) = input template
Masahiro Yamada4abe9232017-01-12 10:48:22 +0900233# $(3) = BL stage (2, 2u, 30, 31, 32, 33)
Juan Castilloa3487d12015-08-18 14:23:04 +0100234define MAKE_LD
235
Masahiro Yamada56c53f62016-12-22 14:02:27 +0900236$(eval DEP := $(1).d)
Juan Castilloa3487d12015-08-18 14:23:04 +0100237
Stephen Warrenc4d562a2018-02-21 17:13:50 -0700238$(1): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | bl$(3)_dirs
Juan Castilloa3487d12015-08-18 14:23:04 +0100239 @echo " PP $$<"
Masahiro Yamada56c53f62016-12-22 14:02:27 +0900240 $$(Q)$$(CPP) $$(CPPFLAGS) -P -D__ASSEMBLY__ -D__LINKER__ $(MAKE_DEP) -o $$@ $$<
Juan Castilloa3487d12015-08-18 14:23:04 +0100241
Masahiro Yamada56c53f62016-12-22 14:02:27 +0900242-include $(DEP)
Juan Castilloa3487d12015-08-18 14:23:04 +0100243
244endef
245
246
247# MAKE_OBJS builds both C and assembly source files
248# $(1) = output directory
249# $(2) = list of source files (both C and assembly)
250# $(3) = BL stage (2, 30, 31, 32, 33)
251define MAKE_OBJS
252 $(eval C_OBJS := $(filter %.c,$(2)))
253 $(eval REMAIN := $(filter-out %.c,$(2)))
254 $(eval $(foreach obj,$(C_OBJS),$(call MAKE_C,$(1),$(obj),$(3))))
255
256 $(eval S_OBJS := $(filter %.S,$(REMAIN)))
257 $(eval REMAIN := $(filter-out %.S,$(REMAIN)))
258 $(eval $(foreach obj,$(S_OBJS),$(call MAKE_S,$(1),$(obj),$(3))))
259
260 $(and $(REMAIN),$(error Unexpected source files present: $(REMAIN)))
261endef
262
263
264# NOTE: The line continuation '\' is required in the next define otherwise we
265# end up with a line-feed characer at the end of the last c filename.
Evan Lloyda71d2592015-12-02 18:56:06 +0000266# Also bear this issue in mind if extending the list of supported filetypes.
Juan Castilloa3487d12015-08-18 14:23:04 +0100267define SOURCES_TO_OBJS
268 $(notdir $(patsubst %.c,%.o,$(filter %.c,$(1)))) \
269 $(notdir $(patsubst %.S,%.o,$(filter %.S,$(1))))
270endef
271
Patrick Georgi8a10e342016-01-28 14:46:18 +0100272# Allow overriding the timestamp, for example for reproducible builds, or to
273# synchronize timestamps across multiple projects.
274# This must be set to a C string (including quotes where applicable).
275BUILD_MESSAGE_TIMESTAMP ?= __TIME__", "__DATE__
Juan Castilloa3487d12015-08-18 14:23:04 +0100276
277# MAKE_BL macro defines the targets and options to build each BL image.
278# Arguments:
Yatharth Kochar115352c2015-10-02 13:58:52 +0100279# $(1) = BL stage (2, 2u, 30, 31, 32, 33)
Juan Castillo8e04dec2016-01-05 11:55:36 +0000280# $(2) = FIP command line option (if empty, image will not be included in the FIP)
Masahiro Yamadacd7711d2018-01-26 11:42:01 +0900281# $(3) = FIP prefix (optional) (if FWU_, target is fwu_fip instead of fip)
Juan Castilloa3487d12015-08-18 14:23:04 +0100282define MAKE_BL
283 $(eval BUILD_DIR := ${BUILD_PLAT}/bl$(1))
Yatharth Kochar115352c2015-10-02 13:58:52 +0100284 $(eval BL_SOURCES := $(BL$(call uppercase,$(1))_SOURCES))
285 $(eval SOURCES := $(BL_SOURCES) $(BL_COMMON_SOURCES) $(PLAT_BL_COMMON_SOURCES))
Juan Castilloa3487d12015-08-18 14:23:04 +0100286 $(eval OBJS := $(addprefix $(BUILD_DIR)/,$(call SOURCES_TO_OBJS,$(SOURCES))))
287 $(eval LINKERFILE := $(call IMG_LINKERFILE,$(1)))
288 $(eval MAPFILE := $(call IMG_MAPFILE,$(1)))
289 $(eval ELF := $(call IMG_ELF,$(1)))
290 $(eval DUMP := $(call IMG_DUMP,$(1)))
291 $(eval BIN := $(call IMG_BIN,$(1)))
Yatharth Kochar115352c2015-10-02 13:58:52 +0100292 $(eval BL_LINKERFILE := $(BL$(call uppercase,$(1))_LINKERFILE))
Evan Lloyd93d3b702015-12-03 12:19:30 +0000293 # We use sort only to get a list of unique object directory names.
294 # ordering is not relevant but sort removes duplicates.
Evan Lloyd4c3055f2017-04-07 16:58:57 +0100295 $(eval TEMP_OBJ_DIRS := $(sort $(dir ${OBJS} ${LINKERFILE})))
Evan Lloyd93d3b702015-12-03 12:19:30 +0000296 # The $(dir ) function leaves a trailing / on the directory names
Masahiro Yamada823482b2017-01-19 19:31:00 +0900297 # Rip off the / to match directory names with make rule targets.
298 $(eval OBJ_DIRS := $(patsubst %/,%,$(TEMP_OBJ_DIRS)))
Evan Lloyd93d3b702015-12-03 12:19:30 +0000299
300# Create generators for object directory structure
Juan Castilloa3487d12015-08-18 14:23:04 +0100301
Masahiro Yamadae2395b42017-11-04 03:12:28 +0900302$(eval $(call MAKE_PREREQ_DIR,${BUILD_DIR},${BUILD_PLAT}))
Evan Lloyd4c3055f2017-04-07 16:58:57 +0100303
304$(eval $(foreach objd,${OBJ_DIRS},$(call MAKE_PREREQ_DIR,${objd},${BUILD_DIR})))
Juan Castilloa3487d12015-08-18 14:23:04 +0100305
Evan Lloyd93d3b702015-12-03 12:19:30 +0000306.PHONY : bl${1}_dirs
Juan Castilloa3487d12015-08-18 14:23:04 +0100307
Evan Lloyd93d3b702015-12-03 12:19:30 +0000308# We use order-only prerequisites to ensure that directories are created,
309# but do not cause re-builds every time a file is written.
310bl${1}_dirs: | ${OBJ_DIRS}
311
312$(eval $(call MAKE_OBJS,$(BUILD_DIR),$(SOURCES),$(1)))
Masahiro Yamada4abe9232017-01-12 10:48:22 +0900313$(eval $(call MAKE_LD,$(LINKERFILE),$(BL_LINKERFILE),$(1)))
Evan Lloyd93d3b702015-12-03 12:19:30 +0000314
315$(ELF): $(OBJS) $(LINKERFILE) | bl$(1)_dirs
Juan Castilloa3487d12015-08-18 14:23:04 +0100316 @echo " LD $$@"
Evan Lloydcf6e9d42015-12-03 12:58:52 +0000317ifdef MAKE_BUILD_STRINGS
318 $(call MAKE_BUILD_STRINGS, $(BUILD_DIR)/build_message.o)
319else
Patrick Georgi8a10e342016-01-28 14:46:18 +0100320 @echo 'const char build_message[] = "Built : "$(BUILD_MESSAGE_TIMESTAMP); \
Juan Castilloa3487d12015-08-18 14:23:04 +0100321 const char version_string[] = "${VERSION_STRING}";' | \
Masahiro Yamada49071ae2016-12-22 12:39:55 +0900322 $$(CC) $$(TF_CFLAGS) $$(CFLAGS) -xc -c - -o $(BUILD_DIR)/build_message.o
Evan Lloydcf6e9d42015-12-03 12:58:52 +0000323endif
Douglas Raillardd0c82732017-06-22 14:44:48 +0100324 $$(Q)$$(LD) -o $$@ $$(TF_LDFLAGS) $$(LDFLAGS) -Map=$(MAPFILE) \
Soby Mathew07a667d2017-05-10 11:48:04 +0100325 --script $(LINKERFILE) $(BUILD_DIR)/build_message.o $(OBJS) $(LDLIBS)
Juan Castilloa3487d12015-08-18 14:23:04 +0100326
327$(DUMP): $(ELF)
328 @echo " OD $$@"
329 $${Q}$${OD} -dx $$< > $$@
330
331$(BIN): $(ELF)
332 @echo " BIN $$@"
333 $$(Q)$$(OC) -O binary $$< $$@
Evan Lloyd1c5f3602017-04-11 16:52:00 +0100334 @${ECHO_BLANK_LINE}
Juan Castilloa3487d12015-08-18 14:23:04 +0100335 @echo "Built $$@ successfully"
Evan Lloyd1c5f3602017-04-11 16:52:00 +0100336 @${ECHO_BLANK_LINE}
Juan Castilloa3487d12015-08-18 14:23:04 +0100337
338.PHONY: bl$(1)
Evan Lloyd93d3b702015-12-03 12:19:30 +0000339bl$(1): $(BIN) $(DUMP)
Juan Castilloa3487d12015-08-18 14:23:04 +0100340
341all: bl$(1)
342
Masahiro Yamadabfb64ac2018-02-01 16:31:09 +0900343$(if $(2),$(call TOOL_ADD_IMG_PAYLOAD,bl$(1),$(BIN),--$(2),$(BIN),$(3)))
Juan Castilloa3487d12015-08-18 14:23:04 +0100344
345endef
346
Soby Mathewab4181d2017-12-14 17:44:56 +0000347# Convert device tree source file names to matching blobs
348# $(1) = input dts
Nishanth Menon4ac02ba2016-10-14 01:13:57 +0000349define SOURCES_TO_DTBS
350 $(notdir $(patsubst %.dts,%.dtb,$(filter %.dts,$(1))))
351endef
352
Soby Mathewab4181d2017-12-14 17:44:56 +0000353# MAKE_FDT_DIRS macro creates the prerequisite directories that host the
354# FDT binaries
355# $(1) = output directory
356# $(2) = input dts
357define MAKE_FDT_DIRS
358 $(eval DTBS := $(addprefix $(1)/,$(call SOURCES_TO_DTBS,$(2))))
Nishanth Menon4ac02ba2016-10-14 01:13:57 +0000359 $(eval TEMP_DTB_DIRS := $(sort $(dir ${DTBS})))
360 # The $(dir ) function leaves a trailing / on the directory names
361 # Rip off the / to match directory names with make rule targets.
362 $(eval DTB_DIRS := $(patsubst %/,%,$(TEMP_DTB_DIRS)))
363
364$(eval $(foreach objd,${DTB_DIRS},$(call MAKE_PREREQ_DIR,${objd},${BUILD_DIR})))
365
366fdt_dirs: ${DTB_DIRS}
Nishanth Menon4ac02ba2016-10-14 01:13:57 +0000367endef
368
Soby Mathewab4181d2017-12-14 17:44:56 +0000369# MAKE_DTB generate the Flattened device tree binary
Nishanth Menon4ac02ba2016-10-14 01:13:57 +0000370# $(1) = output directory
371# $(2) = input dts
372define MAKE_DTB
373
Soby Mathewab4181d2017-12-14 17:44:56 +0000374$(eval DOBJ := $(addprefix $(1)/,$(call SOURCES_TO_DTBS,$(2))))
Yann Gautier2cf1dbc2018-06-18 16:00:23 +0200375$(eval DPRE := $(addprefix $(1)/,$(patsubst %.dts,%.pre.dts,$(notdir $(2)))))
Nishanth Menon4ac02ba2016-10-14 01:13:57 +0000376$(eval DEP := $(patsubst %.dtb,%.d,$(DOBJ)))
377
Stephen Warrenc4d562a2018-02-21 17:13:50 -0700378$(DOBJ): $(2) $(filter-out %.d,$(MAKEFILE_LIST)) | fdt_dirs
Yann Gautier2cf1dbc2018-06-18 16:00:23 +0200379 @echo " CPP $$<"
380 $$(Q)$$(CPP) $$(CPPFLAGS) -x assembler-with-cpp -o $(DPRE) $$<
Soby Mathewab4181d2017-12-14 17:44:56 +0000381 @echo " DTC $$<"
Yann Gautier2cf1dbc2018-06-18 16:00:23 +0200382 $$(Q)$$(DTC) $$(DTC_FLAGS) -i fdts -d $(DEP) -o $$@ $(DPRE)
Nishanth Menon4ac02ba2016-10-14 01:13:57 +0000383
384-include $(DEP)
385
386endef
387
388# MAKE_DTBS builds flattened device tree sources
389# $(1) = output directory
390# $(2) = list of flattened device tree source files
391define MAKE_DTBS
392 $(eval DOBJS := $(filter %.dts,$(2)))
393 $(eval REMAIN := $(filter-out %.dts,$(2)))
Soby Mathewab4181d2017-12-14 17:44:56 +0000394 $(and $(REMAIN),$(error FDT_SOURCES contain non-DTS files: $(REMAIN)))
Nishanth Menon4ac02ba2016-10-14 01:13:57 +0000395 $(eval $(foreach obj,$(DOBJS),$(call MAKE_DTB,$(1),$(obj))))
396
Soby Mathewab4181d2017-12-14 17:44:56 +0000397 $(eval $(call MAKE_FDT_DIRS,$(1),$(2)))
398
399dtbs: $(DTBS)
400all: dtbs
Nishanth Menon4ac02ba2016-10-14 01:13:57 +0000401endef