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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)))
60multi-objs := $(multi-objs-y) $(multi-objs-m)
61
62# $(subdir-obj-y) is the list of objects in $(obj-y) which uses dir/ to
63# tell kbuild to descend
64subdir-obj-y := $(filter %/built-in.o, $(obj-y))
65
66# $(obj-dirs) is a list of directories that contain object files
67obj-dirs := $(dir $(multi-objs) $(obj-y))
68
69# Replace multi-part objects by their individual parts, look at local dir only
70real-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)
71real-objs-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m)))
72
73# Add subdir path
74
75extra-y := $(addprefix $(obj)/,$(extra-y))
76always := $(addprefix $(obj)/,$(always))
77targets := $(addprefix $(obj)/,$(targets))
78modorder := $(addprefix $(obj)/,$(modorder))
79obj-y := $(addprefix $(obj)/,$(obj-y))
80obj-m := $(addprefix $(obj)/,$(obj-m))
81lib-y := $(addprefix $(obj)/,$(lib-y))
82subdir-obj-y := $(addprefix $(obj)/,$(subdir-obj-y))
83real-objs-y := $(addprefix $(obj)/,$(real-objs-y))
84real-objs-m := $(addprefix $(obj)/,$(real-objs-m))
85single-used-m := $(addprefix $(obj)/,$(single-used-m))
86multi-used-y := $(addprefix $(obj)/,$(multi-used-y))
87multi-used-m := $(addprefix $(obj)/,$(multi-used-m))
88multi-objs-y := $(addprefix $(obj)/,$(multi-objs-y))
89multi-objs-m := $(addprefix $(obj)/,$(multi-objs-m))
90subdir-ym := $(addprefix $(obj)/,$(subdir-ym))
91obj-dirs := $(addprefix $(obj)/,$(obj-dirs))
92
93# These flags are needed for modversions and compiling, so we define them here
94# already
Masahiro Yamada45f0ad92014-06-16 18:56:38 +090095# $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will
Masahiro Yamada22433fc2014-02-04 17:24:27 +090096# end up in (or would, if it gets compiled in)
97# Note: Files that end up in two or more modules are compiled without the
98# KBUILD_MODNAME definition. The reason is that any made-up name would
99# differ in different configs.
100name-fix = $(subst $(comma),_,$(subst -,_,$1))
101basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(basetarget)))"
102modname_flags = $(if $(filter 1,$(words $(modname))),\
103 -D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))")
104
Masahiro Yamada026f9cf2014-03-05 16:59:40 +0900105orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900106 $(ccflags-y) $(CFLAGS_$(basetarget).o)
107_c_flags = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags))
Simon Glass3834f412015-07-31 09:31:18 -0600108orig_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900109 $(asflags-y) $(AFLAGS_$(basetarget).o)
Simon Glass3834f412015-07-31 09:31:18 -0600110_a_flags = $(filter-out $(AFLAGS_REMOVE_$(basetarget).o), $(orig_a_flags))
Masahiro Yamada026f9cf2014-03-05 16:59:40 +0900111_cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F))
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900112
113#
114# Enable gcov profiling flags for a file, directory or for all files depending
115# on variables GCOV_PROFILE_obj.o, GCOV_PROFILE and CONFIG_GCOV_PROFILE_ALL
116# (in this order)
117#
118ifeq ($(CONFIG_GCOV_KERNEL),y)
119_c_flags += $(if $(patsubst n%,, \
120 $(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \
121 $(CFLAGS_GCOV))
122endif
123
Masahiro Yamada98bd0e02015-07-05 01:56:55 +0900124#
125# Enable address sanitizer flags for kernel except some files or directories
126# we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE)
127#
128ifeq ($(CONFIG_KASAN),y)
129_c_flags += $(if $(patsubst n%,, \
130 $(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \
131 $(CFLAGS_KASAN))
132endif
133
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900134# If building the kernel in a separate objtree expand all occurrences
135# of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/').
136
137ifeq ($(KBUILD_SRC),)
138__c_flags = $(_c_flags)
139__a_flags = $(_a_flags)
140__cpp_flags = $(_cpp_flags)
141else
142
143# -I$(obj) locates generated .h files
144# $(call addtree,-I$(obj)) locates .h files in srctree, from generated .c files
145# and locates generated .h files
146# FIXME: Replace both with specific CFLAGS* statements in the makefiles
147__c_flags = $(call addtree,-I$(obj)) $(call flags,_c_flags)
148__a_flags = $(call flags,_a_flags)
149__cpp_flags = $(call flags,_cpp_flags)
150endif
151
Masahiro Yamada6825a952014-02-04 17:24:28 +0900152# Modified for U-Boot: LINUXINCLUDE -> UBOOTINCLUDE
153c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900154 $(__c_flags) $(modkern_cflags) \
155 -D"KBUILD_STR(s)=\#s" $(basename_flags) $(modname_flags)
156
Masahiro Yamada6825a952014-02-04 17:24:28 +0900157a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900158 $(__a_flags) $(modkern_aflags)
159
Masahiro Yamada6825a952014-02-04 17:24:28 +0900160cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900161 $(__cpp_flags)
162
163ld_flags = $(LDFLAGS) $(ldflags-y)
164
Simon Glass6d427c62016-11-25 20:15:59 -0700165# Try these files in order to find the U-Boot-specific .dtsi include file
Simon Glass511fd0b2017-11-12 21:52:05 -0700166u_boot_dtsi_options = $(strip $(wildcard $(dir $<)$(basename $(notdir $<))-u-boot.dtsi) \
Tom Rini0f7faf02017-05-24 11:04:03 -0400167 $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi) \
168 $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi) \
169 $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi) \
Simon Glass511fd0b2017-11-12 21:52:05 -0700170 $(wildcard $(dir $<)u-boot.dtsi))
171
172u_boot_dtsi_options_raw = $(warning Automatic .dtsi inclusion: options: \
173 $(dir $<)$(basename $(notdir $<))-u-boot.dtsi \
174 $(dir $<)$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi \
175 $(dir $<)$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi \
176 $(dir $<)$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi \
177 $(dir $<)u-boot.dtsi ... \
178 found: $(if $(u_boot_dtsi_options),"$(u_boot_dtsi_options)",nothing!))
Simon Glass6d427c62016-11-25 20:15:59 -0700179
180# Uncomment for debugging
Simon Glass511fd0b2017-11-12 21:52:05 -0700181# This shows all the files that were considered and the one that we chose.
182# u_boot_dtsi_options_debug = $(u_boot_dtsi_options_raw)
Simon Glass6d427c62016-11-25 20:15:59 -0700183
184# We use the first match
Simon Glass511fd0b2017-11-12 21:52:05 -0700185u_boot_dtsi = $(strip $(u_boot_dtsi_options_debug) \
186 $(notdir $(firstword $(u_boot_dtsi_options))))
Simon Glass6d427c62016-11-25 20:15:59 -0700187
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +0900188# Modified for U-Boot
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900189dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +0900190 -I$(srctree)/arch/$(ARCH)/dts \
Simon Glass5957ac22014-06-11 23:29:44 -0600191 -I$(srctree)/arch/$(ARCH)/dts/include \
Simon Glassb116aff2016-11-25 20:15:58 -0700192 -Iinclude \
193 -I$(srctree)/include \
194 -I$(srctree)/arch/$(ARCH)/include \
195 -include $(srctree)/include/linux/kconfig.h \
196 -D__ASSEMBLY__ \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900197 -undef -D__DTS__
198
199# Finds the multi-part object the current object will be linked into
200modname-multi = $(sort $(foreach m,$(multi-used),\
201 $(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=))))
202
Masahiro Yamadacb6e7b02014-10-30 11:06:10 +0900203# Useful for describing the dependency of composite objects
204# Usage:
205# $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add)
206define multi_depend
207$(foreach m, $(notdir $1), \
208 $(eval $(obj)/$m: \
209 $(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s)))))))
210endef
211
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900212# LEX
213# ---------------------------------------------------------------------------
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900214quiet_cmd_flex = LEX $@
Eugeniu Roscae91610d2018-05-19 14:13:50 +0200215 cmd_flex = $(LEX) -o$@ -L $<
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900216
Eugeniu Roscae91610d2018-05-19 14:13:50 +0200217.PRECIOUS: $(obj)/%.lex.c
218$(obj)/%.lex.c: $(src)/%.l FORCE
219 $(call if_changed,flex)
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900220
221# YACC
222# ---------------------------------------------------------------------------
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900223quiet_cmd_bison = YACC $@
Eugeniu Roscae91610d2018-05-19 14:13:50 +0200224 cmd_bison = $(YACC) -o$@ -t -l $<
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900225
Eugeniu Roscae91610d2018-05-19 14:13:50 +0200226.PRECIOUS: $(obj)/%.tab.c
227$(obj)/%.tab.c: $(src)/%.y FORCE
228 $(call if_changed,bison)
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900229
230quiet_cmd_bison_h = YACC $@
Eugeniu Roscae91610d2018-05-19 14:13:50 +0200231 cmd_bison_h = $(YACC) -o/dev/null --defines=$@ -t -l $<
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900232
Eugeniu Roscae91610d2018-05-19 14:13:50 +0200233.PRECIOUS: $(obj)/%.tab.h
234$(obj)/%.tab.h: $(src)/%.y FORCE
235 $(call if_changed,bison_h)
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900236
237# Shipped files
238# ===========================================================================
239
240quiet_cmd_shipped = SHIPPED $@
241cmd_shipped = cat $< > $@
242
243$(obj)/%: $(src)/%_shipped
244 $(call cmd,shipped)
245
246# Commands useful for building a boot image
247# ===========================================================================
Masahiro Yamada45f0ad92014-06-16 18:56:38 +0900248#
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900249# Use as following:
250#
251# target: source(s) FORCE
252# $(if_changed,ld/objcopy/gzip)
253#
254# and add target to extra-y so that we know we have to
255# read in the saved command line
256
257# Linking
258# ---------------------------------------------------------------------------
259
260quiet_cmd_ld = LD $@
261cmd_ld = $(LD) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \
Masahiro Yamada45f0ad92014-06-16 18:56:38 +0900262 $(filter-out FORCE,$^) -o $@
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900263
264# Objcopy
265# ---------------------------------------------------------------------------
266
267quiet_cmd_objcopy = OBJCOPY $@
268cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
269
270# Gzip
271# ---------------------------------------------------------------------------
272
273quiet_cmd_gzip = GZIP $@
274cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \
275 (rm -f $@ ; false)
276
277# DTC
278# ---------------------------------------------------------------------------
279
280# Generate an assembly file to wrap the output of the device tree compiler
281quiet_cmd_dt_S_dtb= DTB $@
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +0900282# Modified for U-Boot
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900283cmd_dt_S_dtb= \
284( \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900285 echo '.section .dtb.init.rodata,"a"'; \
Simon Glass5c30bf42014-11-14 18:18:19 -0700286 echo '.balign 16'; \
Maxime Ripard716f9082016-07-05 10:26:35 +0200287 echo '.global __dtb_$(subst -,_,$(*F))_begin'; \
288 echo '__dtb_$(subst -,_,$(*F))_begin:'; \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900289 echo '.incbin "$<" '; \
Maxime Ripard716f9082016-07-05 10:26:35 +0200290 echo '__dtb_$(subst -,_,$(*F))_end:'; \
291 echo '.global __dtb_$(subst -,_,$(*F))_end'; \
Simon Glass5c30bf42014-11-14 18:18:19 -0700292 echo '.balign 16'; \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900293) > $@
294
295$(obj)/%.dtb.S: $(obj)/%.dtb
296 $(call cmd,dt_S_dtb)
297
298quiet_cmd_dtc = DTC $@
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +0900299# Modified for U-Boot
Tom Rini74529462017-05-17 14:06:08 -0400300# Bring in any U-Boot-specific include at the end of the file
Masahiro Yamada98bd0e02015-07-05 01:56:55 +0900301cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
Masahiro Yamada0c544112018-09-19 11:35:57 +0900302 (cat $<; $(if $(u_boot_dtsi),echo '$(pound)include "$(u_boot_dtsi)"')) > $(pre-tmp); \
Masahiro Yamadaecc97092017-10-11 23:56:10 +0900303 $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $(pre-tmp) ; \
Pavel Machekc4aaf2e2015-04-06 15:46:44 +0200304 $(DTC) -O dtb -o $@ -b 0 \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900305 -i $(dir $<) $(DTC_FLAGS) \
306 -d $(depfile).dtc.tmp $(dtc-tmp) ; \
307 cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
308
309$(obj)/%.dtb: $(src)/%.dts FORCE
310 $(call if_changed_dep,dtc)
311
Masahiro Yamadaecc97092017-10-11 23:56:10 +0900312pre-tmp = $(subst $(comma),_,$(dot-target).pre.tmp)
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900313dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
314
Pantelis Antoniouda0b3a92017-09-04 23:12:20 +0300315# DTCO
316# ---------------------------------------------------------------------------
317
318quiet_cmd_dtco = DTCO $@
319# Rule for objects only; does not put specific u-boot include at the end
320# No generation of assembly file either
321# Modified for U-Boot
322cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \
323 $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) - ; \
324 $(DTC) -@ -O dtb -o $@ -b 0 \
325 -i $(dir $<) $(DTC_FLAGS) \
326 -d $(depfile).dtc.tmp $(dtc-tmp) ; \
327 cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
328
329$(obj)/%.dtbo: $(src)/%.dts FORCE
330 $(call if_changed_dep,dtco)
331
Simon Glass30a1dca2016-01-14 18:10:35 -0700332# Fonts
333# ---------------------------------------------------------------------------
334
335# Generate an assembly file to wrap the font data
336quiet_cmd_S_ttf= TTF $@
337# Modified for U-Boot
338cmd_S_ttf= \
339( \
340 echo '.section .rodata.ttf.init,"a"'; \
341 echo '.balign 16'; \
342 echo '.global __ttf_$(*F)_begin'; \
343 echo '__ttf_$(*F)_begin:'; \
344 echo '.incbin "$<" '; \
345 echo '__ttf_$(*F)_end:'; \
346 echo '.global __ttf_$(*F)_end'; \
347 echo '.balign 16'; \
348) > $@
349
350$(obj)/%.S: $(src)/%.ttf
351 $(call cmd,S_ttf)
352
Heinrich Schuchardtb0763102017-09-05 16:07:17 +0200353# EFI applications
354# A Makefile target *.efi is built as EFI application.
355# A Makefile target *_efi.S wraps *.efi as built-in EFI application.
Simon Glassc7ae3df2016-11-07 08:47:08 -0700356# ---------------------------------------------------------------------------
357
358# Generate an assembly file to wrap the EFI app
Heinrich Schuchardtb0763102017-09-05 16:07:17 +0200359cmd_S_efi= \
360( \
361 echo '.section .rodata.$*.init,"a"'; \
362 echo '.balign 16'; \
363 echo '.global __efi_$*_begin'; \
364 echo '__efi_$*_begin:'; \
365 echo '.incbin "$<" '; \
366 echo '__efi_$*_end:'; \
367 echo '.global __efi_$*_end'; \
368 echo '.balign 16'; \
Simon Glassc7ae3df2016-11-07 08:47:08 -0700369) > $@
370
371$(obj)/%_efi.S: $(obj)/%.efi
372 $(call cmd,S_efi)
373
Andrew F. Davisf19f1312017-01-06 16:23:59 -0600374quiet_cmd_efi_objcopy = OBJCOPY $@
375cmd_efi_objcopy = $(OBJCOPY) -j .header -j .text -j .sdata -j .data -j \
376 .dynamic -j .dynsym -j .rel* -j .rela* -j .reloc \
Simon Glassc7ae3df2016-11-07 08:47:08 -0700377 $(if $(EFI_TARGET),$(EFI_TARGET),-O binary) $^ $@
378
Heinrich Schuchardtb0763102017-09-05 16:07:17 +0200379$(obj)/%.efi: $(obj)/%_efi.so
Andrew F. Davisf19f1312017-01-06 16:23:59 -0600380 $(call cmd,efi_objcopy)
381
382quiet_cmd_efi_ld = LD $@
383cmd_efi_ld = $(LD) -nostdlib -znocombreloc -T $(EFI_LDS_PATH) -shared \
384 -Bsymbolic $^ -o $@
385
Simon Glassc7ae3df2016-11-07 08:47:08 -0700386EFI_LDS_PATH = $(srctree)/arch/$(ARCH)/lib/$(EFI_LDS)
387
Heinrich Schuchardt2f61b132018-06-02 19:00:41 +0200388$(obj)/efi_crt0.o: $(srctree)/arch/$(ARCH)/lib/$(EFI_CRT0:.o=.S)
389 $(call if_changed_dep,as_o_S)
390
391$(obj)/efi_reloc.o: $(srctree)/arch/$(ARCH)/lib/$(EFI_RELOC:.o=.c) $(recordmcount_source) FORCE
392 $(call cmd,force_checksrc)
393 $(call if_changed_rule,cc_o_c)
394
395$(obj)/%_efi.so: $(obj)/%.o $(obj)/efi_crt0.o $(obj)/efi_reloc.o
Andrew F. Davisf19f1312017-01-06 16:23:59 -0600396 $(call cmd,efi_ld)
Simon Glassc7ae3df2016-11-07 08:47:08 -0700397
Saket Sinha867bcb62015-08-22 12:20:55 +0530398# ACPI
399# ---------------------------------------------------------------------------
Bin Meng68af8d82016-05-07 07:46:16 -0700400quiet_cmd_acpi_c_asl= ASL $<
Saket Sinha867bcb62015-08-22 12:20:55 +0530401cmd_acpi_c_asl= \
Bin Meng66835842016-05-25 19:19:08 -0700402 $(CPP) -x assembler-with-cpp -D__ASSEMBLY__ -P $(UBOOTINCLUDE) -o $<.tmp $<; \
Andy Shevchenko06054b12017-07-21 22:32:00 +0300403 iasl -p $< -tc $<.tmp $(if $(KBUILD_VERBOSE:1=), >/dev/null) && \
Saket Sinha867bcb62015-08-22 12:20:55 +0530404 mv $(patsubst %.asl,%.hex,$<) $@
405
Bin Meng3a2a3d02016-05-07 07:46:17 -0700406$(obj)/dsdt.c: $(src)/dsdt.asl
Saket Sinha867bcb62015-08-22 12:20:55 +0530407 $(call cmd,acpi_c_asl)
Andy Shevchenko919c1c12018-05-23 12:38:02 +0300408 $(Q)sed -i -e "s,dsdt_aml_code,AmlCode," $@
Saket Sinha867bcb62015-08-22 12:20:55 +0530409
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900410# Bzip2
411# ---------------------------------------------------------------------------
412
413# Bzip2 and LZMA do not include size in file... so we have to fake that;
414# append the size as a 32-bit littleendian number as gzip does.
415size_append = printf $(shell \
416dec_size=0; \
417for F in $1; do \
418 fsize=$$(stat -c "%s" $$F); \
419 dec_size=$$(expr $$dec_size + $$fsize); \
420done; \
421printf "%08x\n" $$dec_size | \
422 sed 's/\(..\)/\1 /g' | { \
423 read ch0 ch1 ch2 ch3; \
424 for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \
425 printf '%s%03o' '\\' $$((0x$$ch)); \
426 done; \
427 } \
428)
429
430quiet_cmd_bzip2 = BZIP2 $@
431cmd_bzip2 = (cat $(filter-out FORCE,$^) | \
432 bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
433 (rm -f $@ ; false)
434
435# Lzma
436# ---------------------------------------------------------------------------
437
438quiet_cmd_lzma = LZMA $@
439cmd_lzma = (cat $(filter-out FORCE,$^) | \
440 lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
441 (rm -f $@ ; false)
442
443quiet_cmd_lzo = LZO $@
444cmd_lzo = (cat $(filter-out FORCE,$^) | \
445 lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
446 (rm -f $@ ; false)
447
448quiet_cmd_lz4 = LZ4 $@
449cmd_lz4 = (cat $(filter-out FORCE,$^) | \
450 lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
451 (rm -f $@ ; false)
452
453# U-Boot mkimage
454# ---------------------------------------------------------------------------
455
456MKIMAGE := $(srctree)/scripts/mkuboot.sh
457
458# SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces
459# the number of overrides in arch makefiles
460UIMAGE_ARCH ?= $(SRCARCH)
461UIMAGE_COMPRESSION ?= $(if $(2),$(2),none)
462UIMAGE_OPTS-y ?=
463UIMAGE_TYPE ?= kernel
464UIMAGE_LOADADDR ?= arch_must_set_this
465UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR)
466UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)'
467UIMAGE_IN ?= $<
468UIMAGE_OUT ?= $@
469
470quiet_cmd_uimage = UIMAGE $(UIMAGE_OUT)
471 cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \
472 -C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \
473 -T $(UIMAGE_TYPE) \
474 -a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \
475 -n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT)
476
477# XZ
478# ---------------------------------------------------------------------------
479# Use xzkern to compress the kernel image and xzmisc to compress other things.
480#
481# xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage
482# of the kernel decompressor. A BCJ filter is used if it is available for
483# the target architecture. xzkern also appends uncompressed size of the data
484# using size_append. The .xz format has the size information available at
485# the end of the file too, but it's in more complex format and it's good to
486# avoid changing the part of the boot code that reads the uncompressed size.
487# Note that the bytes added by size_append will make the xz tool think that
488# the file is corrupt. This is expected.
489#
490# xzmisc doesn't use size_append, so it can be used to create normal .xz
491# files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very
492# big dictionary would increase the memory usage too much in the multi-call
493# decompression mode. A BCJ filter isn't used either.
494quiet_cmd_xzkern = XZKERN $@
495cmd_xzkern = (cat $(filter-out FORCE,$^) | \
496 sh $(srctree)/scripts/xz_wrap.sh && \
497 $(call size_append, $(filter-out FORCE,$^))) > $@ || \
498 (rm -f $@ ; false)
499
500quiet_cmd_xzmisc = XZMISC $@
501cmd_xzmisc = (cat $(filter-out FORCE,$^) | \
502 xz --check=crc32 --lzma2=dict=1MiB) > $@ || \
503 (rm -f $@ ; false)
Masahiro Yamadaba8dd772014-06-04 10:12:21 +0900504
505# Additional commands for U-Boot
506#
507# mkimage
508# ---------------------------------------------------------------------------
Sven Ebenfeld1f6a6642016-11-06 16:37:58 +0100509MKIMAGEOUTPUT ?= /dev/null
Masahiro Yamadaba8dd772014-06-04 10:12:21 +0900510quiet_cmd_mkimage = MKIMAGE $@
511cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
Rasmus Villemoes06587612018-03-23 12:08:02 +0100512 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
Simon Goldschmidtd6937422018-02-14 06:44:36 +0100513
514# fdtgrep
515# ---------------------------------------------------------------------------
516# Pass the original device tree file through fdtgrep twice. The first pass
517# removes any unwanted nodes (i.e. those which don't have the
518# 'u-boot,dm-pre-reloc' property and thus are not needed by SPL. The second
519# pass removes various unused properties from the remaining nodes.
520# The output is typically a much smaller device tree file.
521ifeq ($(CONFIG_TPL_BUILD),y)
522fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-tpl
523else
524fdtgrep_props := -b u-boot,dm-pre-reloc -b u-boot,dm-spl
525endif
526quiet_cmd_fdtgrep = FDTGREP $@
527 cmd_fdtgrep = $(objtree)/tools/fdtgrep $(fdtgrep_props) -RT $< \
528 -n /chosen -n /config -O dtb | \
529 $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
530 $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))