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Tom Rini83d290c2018-05-06 17:58:06 -04001# SPDX-License-Identifier: GPL-2.0
Masahiro Yamada22433fc2014-02-04 17:24:27 +09002# Backward compatibility
3asflags-y += $(EXTRA_AFLAGS)
4ccflags-y += $(EXTRA_CFLAGS)
5cppflags-y += $(EXTRA_CPPFLAGS)
6ldflags-y += $(EXTRA_LDFLAGS)
7
8#
9# flags that take effect in sub directories
10export KBUILD_SUBDIR_ASFLAGS := $(KBUILD_SUBDIR_ASFLAGS) $(subdir-asflags-y)
11export KBUILD_SUBDIR_CCFLAGS := $(KBUILD_SUBDIR_CCFLAGS) $(subdir-ccflags-y)
12
13# Figure out what we need to build from the various variables
14# ===========================================================================
15
16# When an object is listed to be built compiled-in and modular,
17# only build the compiled-in version
18
19obj-m := $(filter-out $(obj-y),$(obj-m))
20
21# Libraries are always collected in one lib file.
22# Filter out objects already built-in
23
24lib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m)))
25
26
27# Handle objects in subdirs
28# ---------------------------------------------------------------------------
29# o if we encounter foo/ in $(obj-y), replace it by foo/built-in.o
30# and add the directory to the list of dirs to descend into: $(subdir-y)
Masahiro Yamada45f0ad92014-06-16 18:56:38 +090031# o if we encounter foo/ in $(obj-m), remove it from $(obj-m)
Masahiro Yamada22433fc2014-02-04 17:24:27 +090032# and add the directory to the list of dirs to descend into: $(subdir-m)
33
34# Determine modorder.
35# Unfortunately, we don't have information about ordering between -y
36# and -m subdirs. Just put -y's first.
37modorder := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko))
38
39__subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y)))
40subdir-y += $(__subdir-y)
41__subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m)))
42subdir-m += $(__subdir-m)
43obj-y := $(patsubst %/, %/built-in.o, $(obj-y))
44obj-m := $(filter-out %/, $(obj-m))
45
46# Subdirectories we need to descend into
47
48subdir-ym := $(sort $(subdir-y) $(subdir-m))
49
Masahiro Yamada45f0ad92014-06-16 18:56:38 +090050# if $(foo-objs) exists, foo.o is a composite object
Masahiro Yamada22433fc2014-02-04 17:24:27 +090051multi-used-y := $(sort $(foreach m,$(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
52multi-used-m := $(sort $(foreach m,$(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
53multi-used := $(multi-used-y) $(multi-used-m)
54single-used-m := $(sort $(filter-out $(multi-used-m),$(obj-m)))
55
56# Build list of the parts of our composite objects, our composite
57# objects depend on those (obviously)
58multi-objs-y := $(foreach m, $(multi-used-y), $($(m:.o=-objs)) $($(m:.o=-y)))
59multi-objs-m := $(foreach m, $(multi-used-m), $($(m:.o=-objs)) $($(m:.o=-y)))
Masahiro Yamada22433fc2014-02-04 17:24:27 +090060
61# $(subdir-obj-y) is the list of objects in $(obj-y) which uses dir/ to
62# tell kbuild to descend
63subdir-obj-y := $(filter %/built-in.o, $(obj-y))
64
Masahiro Yamada22433fc2014-02-04 17:24:27 +090065# Replace multi-part objects by their individual parts, look at local dir only
66real-objs-y := $(foreach m, $(filter-out $(subdir-obj-y), $(obj-y)), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m))) $(extra-y)
67real-objs-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m)))
68
69# Add subdir path
70
71extra-y := $(addprefix $(obj)/,$(extra-y))
72always := $(addprefix $(obj)/,$(always))
73targets := $(addprefix $(obj)/,$(targets))
74modorder := $(addprefix $(obj)/,$(modorder))
75obj-y := $(addprefix $(obj)/,$(obj-y))
76obj-m := $(addprefix $(obj)/,$(obj-m))
77lib-y := $(addprefix $(obj)/,$(lib-y))
78subdir-obj-y := $(addprefix $(obj)/,$(subdir-obj-y))
79real-objs-y := $(addprefix $(obj)/,$(real-objs-y))
80real-objs-m := $(addprefix $(obj)/,$(real-objs-m))
81single-used-m := $(addprefix $(obj)/,$(single-used-m))
82multi-used-y := $(addprefix $(obj)/,$(multi-used-y))
83multi-used-m := $(addprefix $(obj)/,$(multi-used-m))
84multi-objs-y := $(addprefix $(obj)/,$(multi-objs-y))
85multi-objs-m := $(addprefix $(obj)/,$(multi-objs-m))
86subdir-ym := $(addprefix $(obj)/,$(subdir-ym))
Masahiro Yamada22433fc2014-02-04 17:24:27 +090087
88# These flags are needed for modversions and compiling, so we define them here
89# already
Masahiro Yamada45f0ad92014-06-16 18:56:38 +090090# $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will
Masahiro Yamada22433fc2014-02-04 17:24:27 +090091# end up in (or would, if it gets compiled in)
92# Note: Files that end up in two or more modules are compiled without the
93# KBUILD_MODNAME definition. The reason is that any made-up name would
94# differ in different configs.
Masahiro Yamadab5a20462020-04-17 16:21:36 +090095name-fix = $(squote)$(quote)$(subst $(comma),_,$(subst -,_,$1))$(quote)$(squote)
96basename_flags = -DKBUILD_BASENAME=$(call name-fix,$(basetarget))
Masahiro Yamada22433fc2014-02-04 17:24:27 +090097modname_flags = $(if $(filter 1,$(words $(modname))),\
Masahiro Yamadab5a20462020-04-17 16:21:36 +090098 -DKBUILD_MODNAME=$(call name-fix,$(modname)))
Masahiro Yamada22433fc2014-02-04 17:24:27 +090099
Masahiro Yamada026f9cf2014-03-05 16:59:40 +0900100orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900101 $(ccflags-y) $(CFLAGS_$(basetarget).o)
102_c_flags = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags))
Simon Glass3834f412015-07-31 09:31:18 -0600103orig_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900104 $(asflags-y) $(AFLAGS_$(basetarget).o)
Simon Glass3834f412015-07-31 09:31:18 -0600105_a_flags = $(filter-out $(AFLAGS_REMOVE_$(basetarget).o), $(orig_a_flags))
Masahiro Yamada026f9cf2014-03-05 16:59:40 +0900106_cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F))
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900107
108#
109# Enable gcov profiling flags for a file, directory or for all files depending
110# on variables GCOV_PROFILE_obj.o, GCOV_PROFILE and CONFIG_GCOV_PROFILE_ALL
111# (in this order)
112#
113ifeq ($(CONFIG_GCOV_KERNEL),y)
114_c_flags += $(if $(patsubst n%,, \
115 $(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \
116 $(CFLAGS_GCOV))
117endif
118
Masahiro Yamada98bd0e02015-07-05 01:56:55 +0900119#
120# Enable address sanitizer flags for kernel except some files or directories
121# we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE)
122#
123ifeq ($(CONFIG_KASAN),y)
124_c_flags += $(if $(patsubst n%,, \
125 $(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \
126 $(CFLAGS_KASAN))
127endif
128
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900129# If building the kernel in a separate objtree expand all occurrences
130# of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/').
131
132ifeq ($(KBUILD_SRC),)
133__c_flags = $(_c_flags)
134__a_flags = $(_a_flags)
135__cpp_flags = $(_cpp_flags)
136else
137
138# -I$(obj) locates generated .h files
139# $(call addtree,-I$(obj)) locates .h files in srctree, from generated .c files
140# and locates generated .h files
141# FIXME: Replace both with specific CFLAGS* statements in the makefiles
Tom Rini5972ff02020-03-11 18:11:17 -0400142__c_flags = $(if $(obj),$(call addtree,-I$(src)) -I$(obj)) \
143 $(call flags,_c_flags)
144__a_flags = $(call flags,_a_flags)
145__cpp_flags = $(call flags,_cpp_flags)
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900146endif
147
Masahiro Yamada6825a952014-02-04 17:24:28 +0900148# Modified for U-Boot: LINUXINCLUDE -> UBOOTINCLUDE
149c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900150 $(__c_flags) $(modkern_cflags) \
Masahiro Yamadab5a20462020-04-17 16:21:36 +0900151 $(basename_flags) $(modname_flags)
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900152
Masahiro Yamada6825a952014-02-04 17:24:28 +0900153a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900154 $(__a_flags) $(modkern_aflags)
155
Masahiro Yamada6825a952014-02-04 17:24:28 +0900156cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900157 $(__cpp_flags)
158
Tom Rini587e4a42020-03-27 11:46:27 -0400159ld_flags = $(KBUILD_LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F))
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900160
Simon Glass6d427c62016-11-25 20:15:59 -0700161# Try these files in order to find the U-Boot-specific .dtsi include file
Simon Glass511fd0b2017-11-12 21:52:05 -0700162u_boot_dtsi_options = $(strip $(wildcard $(dir $<)$(basename $(notdir $<))-u-boot.dtsi) \
Tom Rini0f7faf02017-05-24 11:04:03 -0400163 $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi) \
164 $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi) \
165 $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi) \
Simon Glass511fd0b2017-11-12 21:52:05 -0700166 $(wildcard $(dir $<)u-boot.dtsi))
167
168u_boot_dtsi_options_raw = $(warning Automatic .dtsi inclusion: options: \
169 $(dir $<)$(basename $(notdir $<))-u-boot.dtsi \
170 $(dir $<)$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi \
171 $(dir $<)$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi \
172 $(dir $<)$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi \
173 $(dir $<)u-boot.dtsi ... \
174 found: $(if $(u_boot_dtsi_options),"$(u_boot_dtsi_options)",nothing!))
Simon Glass6d427c62016-11-25 20:15:59 -0700175
176# Uncomment for debugging
Simon Glass511fd0b2017-11-12 21:52:05 -0700177# This shows all the files that were considered and the one that we chose.
Simon Glassed966832021-12-16 20:59:23 -0700178ifdef DEVICE_TREE_DEBUG
179u_boot_dtsi_options_debug = $(warning $(u_boot_dtsi_options_raw))
180endif
Simon Glass6d427c62016-11-25 20:15:59 -0700181
182# We use the first match
Simon Glass511fd0b2017-11-12 21:52:05 -0700183u_boot_dtsi = $(strip $(u_boot_dtsi_options_debug) \
184 $(notdir $(firstword $(u_boot_dtsi_options))))
Simon Glass6d427c62016-11-25 20:15:59 -0700185
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +0900186# Modified for U-Boot
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900187dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \
Andy Shevchenko672c1702022-03-30 12:30:04 +0300188 $(UBOOTINCLUDE) \
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +0900189 -I$(srctree)/arch/$(ARCH)/dts \
Simon Glass5957ac22014-06-11 23:29:44 -0600190 -I$(srctree)/arch/$(ARCH)/dts/include \
Simon Glassb116aff2016-11-25 20:15:58 -0700191 -I$(srctree)/include \
Simon Glassb116aff2016-11-25 20:15:58 -0700192 -D__ASSEMBLY__ \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900193 -undef -D__DTS__
194
195# Finds the multi-part object the current object will be linked into
196modname-multi = $(sort $(foreach m,$(multi-used),\
197 $(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=))))
198
Masahiro Yamadacb6e7b02014-10-30 11:06:10 +0900199# Useful for describing the dependency of composite objects
200# Usage:
201# $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add)
202define multi_depend
203$(foreach m, $(notdir $1), \
204 $(eval $(obj)/$m: \
205 $(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s)))))))
206endef
207
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900208# LEX
209# ---------------------------------------------------------------------------
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900210quiet_cmd_flex = LEX $@
Eugeniu Roscae91610d2018-05-19 14:13:50 +0200211 cmd_flex = $(LEX) -o$@ -L $<
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900212
Eugeniu Roscae91610d2018-05-19 14:13:50 +0200213$(obj)/%.lex.c: $(src)/%.l FORCE
214 $(call if_changed,flex)
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900215
216# YACC
217# ---------------------------------------------------------------------------
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900218quiet_cmd_bison = YACC $@
Eugeniu Roscae91610d2018-05-19 14:13:50 +0200219 cmd_bison = $(YACC) -o$@ -t -l $<
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900220
Eugeniu Roscae91610d2018-05-19 14:13:50 +0200221$(obj)/%.tab.c: $(src)/%.y FORCE
222 $(call if_changed,bison)
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900223
224quiet_cmd_bison_h = YACC $@
Eugeniu Roscae91610d2018-05-19 14:13:50 +0200225 cmd_bison_h = $(YACC) -o/dev/null --defines=$@ -t -l $<
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900226
Eugeniu Roscae91610d2018-05-19 14:13:50 +0200227$(obj)/%.tab.h: $(src)/%.y FORCE
228 $(call if_changed,bison_h)
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900229
230# Shipped files
231# ===========================================================================
232
233quiet_cmd_shipped = SHIPPED $@
234cmd_shipped = cat $< > $@
235
236$(obj)/%: $(src)/%_shipped
237 $(call cmd,shipped)
238
239# Commands useful for building a boot image
240# ===========================================================================
Masahiro Yamada45f0ad92014-06-16 18:56:38 +0900241#
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900242# Use as following:
243#
244# target: source(s) FORCE
245# $(if_changed,ld/objcopy/gzip)
246#
247# and add target to extra-y so that we know we have to
248# read in the saved command line
249
250# Linking
251# ---------------------------------------------------------------------------
252
253quiet_cmd_ld = LD $@
Tom Rini587e4a42020-03-27 11:46:27 -0400254cmd_ld = $(LD) $(ld_flags) $(filter-out FORCE,$^) -o $@
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900255
256# Objcopy
257# ---------------------------------------------------------------------------
258
259quiet_cmd_objcopy = OBJCOPY $@
260cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
261
262# Gzip
263# ---------------------------------------------------------------------------
264
265quiet_cmd_gzip = GZIP $@
266cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \
267 (rm -f $@ ; false)
268
269# DTC
270# ---------------------------------------------------------------------------
271
Tom Rinie0d1a892020-02-24 12:50:33 -0500272# Disable noisy checks by default
273ifeq ($(findstring 1,$(KBUILD_ENABLE_EXTRA_GCC_CHECKS)),)
274DTC_FLAGS += -Wno-unit_address_vs_reg \
275 -Wno-unit_address_format \
276 -Wno-avoid_unnecessary_addr_size \
277 -Wno-alias_paths \
Tom Rini5972ff02020-03-11 18:11:17 -0400278 -Wno-graph_child_address \
279 -Wno-graph_port \
280 -Wno-unique_unit_address \
Tom Rini7a212e52020-02-24 12:50:35 -0500281 -Wno-simple_bus_reg \
Tom Rinie0d1a892020-02-24 12:50:33 -0500282 -Wno-pci_device_reg
Tom Riniaacf2642020-02-24 12:50:34 -0500283
284# U-Boot specific disables
285DTC_FLAGS += -Wno-pci_bridge \
286 -Wno-pci_device_bus_num
Tom Rinie0d1a892020-02-24 12:50:33 -0500287endif
288
289ifneq ($(findstring 2,$(KBUILD_ENABLE_EXTRA_GCC_CHECKS)),)
290DTC_FLAGS += -Wnode_name_chars_strict \
291 -Wproperty_name_chars_strict
292endif
293
294DTC_FLAGS += $(DTC_FLAGS_$(basetarget))
295
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900296# Generate an assembly file to wrap the output of the device tree compiler
297quiet_cmd_dt_S_dtb= DTB $@
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +0900298# Modified for U-Boot
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900299cmd_dt_S_dtb= \
300( \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900301 echo '.section .dtb.init.rodata,"a"'; \
Simon Glass5c30bf42014-11-14 18:18:19 -0700302 echo '.balign 16'; \
Maxime Ripard716f9082016-07-05 10:26:35 +0200303 echo '.global __dtb_$(subst -,_,$(*F))_begin'; \
304 echo '__dtb_$(subst -,_,$(*F))_begin:'; \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900305 echo '.incbin "$<" '; \
Maxime Ripard716f9082016-07-05 10:26:35 +0200306 echo '__dtb_$(subst -,_,$(*F))_end:'; \
307 echo '.global __dtb_$(subst -,_,$(*F))_end'; \
Simon Glass5c30bf42014-11-14 18:18:19 -0700308 echo '.balign 16'; \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900309) > $@
310
311$(obj)/%.dtb.S: $(obj)/%.dtb
312 $(call cmd,dt_S_dtb)
313
Michal Simek36766d32020-07-22 14:58:25 +0200314ifeq ($(CONFIG_OF_LIBFDT_OVERLAY),y)
Jean-Jacques Hiblot47818e22019-10-22 16:39:16 +0200315DTC_FLAGS += -@
316endif
317
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900318quiet_cmd_dtc = DTC $@
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +0900319# Modified for U-Boot
Tom Rini74529462017-05-17 14:06:08 -0400320# Bring in any U-Boot-specific include at the end of the file
Rasmus Villemoesa77f4682021-11-21 14:52:51 +0100321# And finally any custom .dtsi fragments specified with CONFIG_DEVICE_TREE_INCLUDES
Masahiro Yamada98bd0e02015-07-05 01:56:55 +0900322cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
Masahiro Yamada0c544112018-09-19 11:35:57 +0900323 (cat $<; $(if $(u_boot_dtsi),echo '$(pound)include "$(u_boot_dtsi)"')) > $(pre-tmp); \
Rasmus Villemoesa77f4682021-11-21 14:52:51 +0100324 $(foreach f,$(subst $(quote),,$(CONFIG_DEVICE_TREE_INCLUDES)), \
325 echo '$(pound)include "$(f)"' >> $(pre-tmp);) \
Tom Rini473fc272021-06-17 18:07:25 -0400326 $(HOSTCC) -E $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $(pre-tmp) ; \
Pavel Machekc4aaf2e2015-04-06 15:46:44 +0200327 $(DTC) -O dtb -o $@ -b 0 \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900328 -i $(dir $<) $(DTC_FLAGS) \
Simon Glass1653b6a2019-12-06 21:41:44 -0700329 -d $(depfile).dtc.tmp $(dtc-tmp) || \
330 (echo "Check $(shell pwd)/$(pre-tmp) for errors" && false) \
331 ; \
Roger Pau Monnee420a382021-02-13 11:06:32 +0100332 sed "s:$(pre-tmp):$(<):" $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900333
334$(obj)/%.dtb: $(src)/%.dts FORCE
335 $(call if_changed_dep,dtc)
336
Masahiro Yamadaecc97092017-10-11 23:56:10 +0900337pre-tmp = $(subst $(comma),_,$(dot-target).pre.tmp)
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900338dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
339
Pantelis Antoniouda0b3a92017-09-04 23:12:20 +0300340# DTCO
341# ---------------------------------------------------------------------------
342
343quiet_cmd_dtco = DTCO $@
344# Rule for objects only; does not put specific u-boot include at the end
345# No generation of assembly file either
346# Modified for U-Boot
347cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \
Michal Simek1e7883f2019-02-11 14:51:02 +0100348 $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
Pantelis Antoniouda0b3a92017-09-04 23:12:20 +0300349 $(DTC) -@ -O dtb -o $@ -b 0 \
350 -i $(dir $<) $(DTC_FLAGS) \
351 -d $(depfile).dtc.tmp $(dtc-tmp) ; \
352 cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
353
354$(obj)/%.dtbo: $(src)/%.dts FORCE
355 $(call if_changed_dep,dtco)
356
Simon Glass30a1dca2016-01-14 18:10:35 -0700357# Fonts
358# ---------------------------------------------------------------------------
359
360# Generate an assembly file to wrap the font data
361quiet_cmd_S_ttf= TTF $@
362# Modified for U-Boot
363cmd_S_ttf= \
364( \
365 echo '.section .rodata.ttf.init,"a"'; \
366 echo '.balign 16'; \
367 echo '.global __ttf_$(*F)_begin'; \
368 echo '__ttf_$(*F)_begin:'; \
369 echo '.incbin "$<" '; \
370 echo '__ttf_$(*F)_end:'; \
371 echo '.global __ttf_$(*F)_end'; \
372 echo '.balign 16'; \
373) > $@
374
375$(obj)/%.S: $(src)/%.ttf
376 $(call cmd,S_ttf)
377
Simon Glass84e63ab2021-11-19 13:24:03 -0700378# Splash logos
379# ---------------------------------------------------------------------------
380
381# Generate an assembly file to wrap the splash data
382quiet_cmd_S_splash= TTF $@
383# Modified for U-Boot
384cmd_S_splash= \
385( \
386 echo '.section .rodata.splash.init,"a"'; \
387 echo '.balign 16'; \
388 echo '.global __splash_$(*F)_begin'; \
389 echo '__splash_$(*F)_begin:'; \
390 echo '.incbin "$<" '; \
391 echo '__splash_$(*F)_end:'; \
392 echo '.global __splash_$(*F)_end'; \
393 echo '.balign 16'; \
394) > $@
395
396$(obj)/%.S: $(src)/%.bmp
397 $(call cmd,S_splash)
398
Heinrich Schuchardtb0763102017-09-05 16:07:17 +0200399# EFI applications
400# A Makefile target *.efi is built as EFI application.
401# A Makefile target *_efi.S wraps *.efi as built-in EFI application.
Simon Glassc7ae3df2016-11-07 08:47:08 -0700402# ---------------------------------------------------------------------------
403
404# Generate an assembly file to wrap the EFI app
Heinrich Schuchardtb0763102017-09-05 16:07:17 +0200405cmd_S_efi= \
406( \
407 echo '.section .rodata.$*.init,"a"'; \
408 echo '.balign 16'; \
409 echo '.global __efi_$*_begin'; \
410 echo '__efi_$*_begin:'; \
411 echo '.incbin "$<" '; \
412 echo '__efi_$*_end:'; \
413 echo '.global __efi_$*_end'; \
414 echo '.balign 16'; \
Simon Glassc7ae3df2016-11-07 08:47:08 -0700415) > $@
416
417$(obj)/%_efi.S: $(obj)/%.efi
418 $(call cmd,S_efi)
419
Andrew F. Davisf19f1312017-01-06 16:23:59 -0600420quiet_cmd_efi_objcopy = OBJCOPY $@
421cmd_efi_objcopy = $(OBJCOPY) -j .header -j .text -j .sdata -j .data -j \
422 .dynamic -j .dynsym -j .rel* -j .rela* -j .reloc \
Simon Glassc7ae3df2016-11-07 08:47:08 -0700423 $(if $(EFI_TARGET),$(EFI_TARGET),-O binary) $^ $@
424
Heinrich Schuchardtb0763102017-09-05 16:07:17 +0200425$(obj)/%.efi: $(obj)/%_efi.so
Andrew F. Davisf19f1312017-01-06 16:23:59 -0600426 $(call cmd,efi_objcopy)
427
428quiet_cmd_efi_ld = LD $@
429cmd_efi_ld = $(LD) -nostdlib -znocombreloc -T $(EFI_LDS_PATH) -shared \
Alistair Delvaaf484012021-10-20 21:31:31 +0000430 -Bsymbolic -znorelro -s $^ -o $@
Andrew F. Davisf19f1312017-01-06 16:23:59 -0600431
Simon Glassc7ae3df2016-11-07 08:47:08 -0700432EFI_LDS_PATH = $(srctree)/arch/$(ARCH)/lib/$(EFI_LDS)
433
Heinrich Schuchardt4ed0d3c2019-07-22 07:59:23 +0200434$(obj)/efi_crt0.o: $(srctree)/arch/$(ARCH)/lib/$(EFI_CRT0:.o=.S) FORCE
Heinrich Schuchardt2f61b132018-06-02 19:00:41 +0200435 $(call if_changed_dep,as_o_S)
436
437$(obj)/efi_reloc.o: $(srctree)/arch/$(ARCH)/lib/$(EFI_RELOC:.o=.c) $(recordmcount_source) FORCE
438 $(call cmd,force_checksrc)
439 $(call if_changed_rule,cc_o_c)
440
Heinrich Schuchardte6161002019-03-11 22:04:51 +0100441$(obj)/%_efi.so: $(obj)/%.o $(obj)/efi_crt0.o $(obj)/efi_reloc.o $(obj)/efi_freestanding.o
Andrew F. Davisf19f1312017-01-06 16:23:59 -0600442 $(call cmd,efi_ld)
Simon Glassc7ae3df2016-11-07 08:47:08 -0700443
Jan Kiszkab37a0b52020-05-04 14:38:29 +0200444targets += $(obj)/efi_crt0.o $(obj)/efi_reloc.o $(obj)/efi_freestanding.o
445
Marek Behúnc1094982021-05-20 13:24:03 +0200446CFLAGS_REMOVE_efi_reloc.o := $(LTO_CFLAGS)
447CFLAGS_REMOVE_efi_freestanding.o := $(LTO_CFLAGS)
448
Saket Sinha867bcb62015-08-22 12:20:55 +0530449# ACPI
450# ---------------------------------------------------------------------------
Simon Glassc1865bb2019-07-28 14:16:28 -0600451#
452# This first sends the file (typically dsdt.asl) through the preprocessor
453# resolve includes and any CONFIG options used. This produces dsdt.asl.tmp
454# which is pure ASL code. The Intel ASL (ACPI (Advanced Configuration and Power
455# Interface) Source Language compiler (iasl) then converts this ASL code into a
456# C file containing the hex data to build into U-Boot. This file is called
Philippe Reynes5d94cbd2022-02-22 14:54:39 +0100457# dsdt_generated.hex (despite us setting the prefix to .../dsdt_generated.asl.tmp)
458# so must be renamed to dsdt_generated.c for consumption by the build system.
Simon Glassc1865bb2019-07-28 14:16:28 -0600459ASL_TMP = $(patsubst %.c,%.asl.tmp,$@)
460
Bin Meng68af8d82016-05-07 07:46:16 -0700461quiet_cmd_acpi_c_asl= ASL $<
Saket Sinha867bcb62015-08-22 12:20:55 +0530462cmd_acpi_c_asl= \
Simon Glass89c27982020-04-08 16:57:37 -0600463 $(CPP) -x assembler-with-cpp -D__ASSEMBLY__ -D__ACPI__ \
464 -P $(UBOOTINCLUDE) -o $(ASL_TMP) $< && \
Simon Glassa16f4882021-12-01 09:02:44 -0700465 iasl -p $@ -I $(srctree)/board/$(BOARDDIR) -tc $(ASL_TMP) \
466 $(if $(KBUILD_VERBOSE:1=), >/dev/null) && \
Simon Glassc1865bb2019-07-28 14:16:28 -0600467 mv $(patsubst %.c,%.hex,$@) $@
Saket Sinha867bcb62015-08-22 12:20:55 +0530468
Philippe Reynes5d94cbd2022-02-22 14:54:39 +0100469$(obj)/dsdt_generated.c: $(src)/dsdt.asl
Saket Sinha867bcb62015-08-22 12:20:55 +0530470 $(call cmd,acpi_c_asl)
Philippe Reynes5d94cbd2022-02-22 14:54:39 +0100471 $(Q)sed -i -e "s,dsdt_generated_aml_code,AmlCode," $@
Saket Sinha867bcb62015-08-22 12:20:55 +0530472
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900473# Bzip2
474# ---------------------------------------------------------------------------
475
476# Bzip2 and LZMA do not include size in file... so we have to fake that;
477# append the size as a 32-bit littleendian number as gzip does.
478size_append = printf $(shell \
479dec_size=0; \
480for F in $1; do \
481 fsize=$$(stat -c "%s" $$F); \
482 dec_size=$$(expr $$dec_size + $$fsize); \
483done; \
484printf "%08x\n" $$dec_size | \
485 sed 's/\(..\)/\1 /g' | { \
486 read ch0 ch1 ch2 ch3; \
487 for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \
488 printf '%s%03o' '\\' $$((0x$$ch)); \
489 done; \
490 } \
491)
492
493quiet_cmd_bzip2 = BZIP2 $@
494cmd_bzip2 = (cat $(filter-out FORCE,$^) | \
495 bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
496 (rm -f $@ ; false)
497
498# Lzma
499# ---------------------------------------------------------------------------
500
501quiet_cmd_lzma = LZMA $@
502cmd_lzma = (cat $(filter-out FORCE,$^) | \
503 lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
504 (rm -f $@ ; false)
505
506quiet_cmd_lzo = LZO $@
507cmd_lzo = (cat $(filter-out FORCE,$^) | \
508 lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
509 (rm -f $@ ; false)
510
511quiet_cmd_lz4 = LZ4 $@
512cmd_lz4 = (cat $(filter-out FORCE,$^) | \
513 lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
514 (rm -f $@ ; false)
515
516# U-Boot mkimage
517# ---------------------------------------------------------------------------
518
519MKIMAGE := $(srctree)/scripts/mkuboot.sh
520
521# SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces
522# the number of overrides in arch makefiles
523UIMAGE_ARCH ?= $(SRCARCH)
524UIMAGE_COMPRESSION ?= $(if $(2),$(2),none)
525UIMAGE_OPTS-y ?=
526UIMAGE_TYPE ?= kernel
527UIMAGE_LOADADDR ?= arch_must_set_this
528UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR)
529UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)'
530UIMAGE_IN ?= $<
531UIMAGE_OUT ?= $@
532
533quiet_cmd_uimage = UIMAGE $(UIMAGE_OUT)
534 cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \
535 -C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \
536 -T $(UIMAGE_TYPE) \
537 -a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \
538 -n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT)
539
540# XZ
541# ---------------------------------------------------------------------------
542# Use xzkern to compress the kernel image and xzmisc to compress other things.
543#
544# xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage
545# of the kernel decompressor. A BCJ filter is used if it is available for
546# the target architecture. xzkern also appends uncompressed size of the data
547# using size_append. The .xz format has the size information available at
548# the end of the file too, but it's in more complex format and it's good to
549# avoid changing the part of the boot code that reads the uncompressed size.
550# Note that the bytes added by size_append will make the xz tool think that
551# the file is corrupt. This is expected.
552#
553# xzmisc doesn't use size_append, so it can be used to create normal .xz
554# files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very
555# big dictionary would increase the memory usage too much in the multi-call
556# decompression mode. A BCJ filter isn't used either.
557quiet_cmd_xzkern = XZKERN $@
558cmd_xzkern = (cat $(filter-out FORCE,$^) | \
559 sh $(srctree)/scripts/xz_wrap.sh && \
560 $(call size_append, $(filter-out FORCE,$^))) > $@ || \
561 (rm -f $@ ; false)
562
563quiet_cmd_xzmisc = XZMISC $@
564cmd_xzmisc = (cat $(filter-out FORCE,$^) | \
565 xz --check=crc32 --lzma2=dict=1MiB) > $@ || \
566 (rm -f $@ ; false)
Masahiro Yamadaba8dd772014-06-04 10:12:21 +0900567
568# Additional commands for U-Boot
569#
570# mkimage
571# ---------------------------------------------------------------------------
Sven Ebenfeld1f6a6642016-11-06 16:37:58 +0100572MKIMAGEOUTPUT ?= /dev/null
Masahiro Yamadaba8dd772014-06-04 10:12:21 +0900573quiet_cmd_mkimage = MKIMAGE $@
574cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
Rasmus Villemoes06587612018-03-23 12:08:02 +0100575 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
Simon Goldschmidtd6937422018-02-14 06:44:36 +0100576
577# fdtgrep
578# ---------------------------------------------------------------------------
579# Pass the original device tree file through fdtgrep twice. The first pass
580# removes any unwanted nodes (i.e. those which don't have the
581# 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
582# pass removes various unused properties from the remaining nodes.
583# The output is typically a much smaller device tree file.
Simon Glassf86ca5a2022-04-30 00:56:52 -0600584ifeq ($(CONFIG_VPL_BUILD),y)
585fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-vpl
586else
Simon Goldschmidtd6937422018-02-14 06:44:36 +0100587ifeq ($(CONFIG_TPL_BUILD),y)
588fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-tpl
589else
590fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-spl
591endif
Simon Glassf86ca5a2022-04-30 00:56:52 -0600592endif
Simon Goldschmidtd6937422018-02-14 06:44:36 +0100593quiet_cmd_fdtgrep = FDTGREP $@
594 cmd_fdtgrep = $(objtree)/tools/fdtgrep $(fdtgrep_props) -RT $< \
595 -n /chosen -n /config -O dtb | \
596 $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
Patrick Delaunayc7a88da2019-02-11 12:49:57 +0100597 -P u-boot,dm-pre-reloc -P u-boot,dm-spl -P u-boot,dm-tpl \
Simon Glassf86ca5a2022-04-30 00:56:52 -0600598 -P u-boot,dm-vpl \
Simon Goldschmidtd6937422018-02-14 06:44:36 +0100599 $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
Anatolij Gustschin43b6e382020-01-12 15:57:42 +0100600
601# fdt_rm_props
602# ---------------------------------------------------------------------------
603# Pass the original device tree file through fdtgrep. This removes various
604# unused properties. The output is typically a smaller device tree file.
605quiet_cmd_fdt_rm_props = FDTGREP $@
606 cmd_fdt_rm_props = cat $< | $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
607 $(addprefix -P ,$(subst $\",,$(CONFIG_OF_REMOVE_PROPS)))
Masahiro Yamadab5a20462020-04-17 16:21:36 +0900608
609# ASM offsets
610# ---------------------------------------------------------------------------
611
612# Default sed regexp - multiline due to syntax constraints
613define sed-offsets
614 "s:[[:space:]]*\.ascii[[:space:]]*\"\(.*\)\":\1:; \
615 /^->/{s:->#\(.*\):/* \1 */:; \
616 s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
617 s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
618 s:->::; p;}"
619endef
620
621# Use filechk to avoid rebuilds when a header changes, but the resulting file
622# does not
623define filechk_offsets
624 (set -e; \
625 echo "#ifndef $2"; \
626 echo "#define $2"; \
627 echo "/*"; \
628 echo " * DO NOT MODIFY."; \
629 echo " *"; \
630 echo " * This file was generated by Kbuild"; \
631 echo " */"; \
632 echo ""; \
633 sed -ne $(sed-offsets); \
634 echo ""; \
635 echo "#endif" )
636endef