]> Git Repo - J-u-boot.git/blob - scripts/Makefile.lib
Merge patch series "U-boot: arm: Refine the booting on Total Compute"
[J-u-boot.git] / scripts / Makefile.lib
1 # SPDX-License-Identifier: GPL-2.0
2 # Backward compatibility
3 asflags-y  += $(EXTRA_AFLAGS)
4 ccflags-y  += $(EXTRA_CFLAGS)
5 cppflags-y += $(EXTRA_CPPFLAGS)
6 ldflags-y  += $(EXTRA_LDFLAGS)
7
8 #
9 # flags that take effect in sub directories
10 export KBUILD_SUBDIR_ASFLAGS := $(KBUILD_SUBDIR_ASFLAGS) $(subdir-asflags-y)
11 export 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
19 obj-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
24 lib-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)
31 # o if we encounter foo/ in $(obj-m), remove it from $(obj-m)
32 #   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.
37 modorder        := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko))
38
39 __subdir-y      := $(patsubst %/,%,$(filter %/, $(obj-y)))
40 subdir-y        += $(__subdir-y)
41 __subdir-m      := $(patsubst %/,%,$(filter %/, $(obj-m)))
42 subdir-m        += $(__subdir-m)
43 obj-y           := $(patsubst %/, %/built-in.o, $(obj-y))
44 obj-m           := $(filter-out %/, $(obj-m))
45
46 # Subdirectories we need to descend into
47
48 subdir-ym       := $(sort $(subdir-y) $(subdir-m))
49
50 # Expand $(foo-objs) $(foo-y) etc. by replacing their individuals
51 suffix-search = $(strip $(foreach s, $3, $($(1:%$(strip $2)=%$s))))
52 # List composite targets that are constructed by combining other targets
53 multi-search = $(sort $(foreach m, $1, $(if $(call suffix-search, $m, $2, $3 -), $m)))
54 # List primitive targets that are compiled from source files
55 real-search = $(foreach m, $1, $(if $(call suffix-search, $m, $2, $3 -), $(call suffix-search, $m, $2, $3), $m))
56
57 # if $(foo-objs) exists, foo.o is a composite object
58 multi-used-y := $(sort $(foreach m,$(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
59 multi-used-m := $(sort $(foreach m,$(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
60 multi-used   := $(multi-used-y) $(multi-used-m)
61 single-used-m := $(sort $(filter-out $(multi-used-m),$(obj-m)))
62
63 # Build list of the parts of our composite objects, our composite
64 # objects depend on those (obviously)
65 multi-objs-y := $(foreach m, $(multi-used-y), $($(m:.o=-objs)) $($(m:.o=-y)))
66 multi-objs-m := $(foreach m, $(multi-used-m), $($(m:.o=-objs)) $($(m:.o=-y)))
67
68 # Composite DTB (i.e. DTB constructed by overlay)
69 multi-dtb-y := $(call multi-search, $(dtb-y), .dtb, -dtbs)
70 # Primitive DTB compiled from *.dts
71 real-dtb-y := $(call real-search, $(dtb-y), .dtb, -dtbs)
72 # Base DTB that overlay is applied onto (each first word of $(*-dtbs) expansion)
73 base-dtb-y := $(foreach m, $(multi-dtb-y), $(firstword $(call suffix-search, $m, .dtb, -dtbs)))
74
75 # $(subdir-obj-y) is the list of objects in $(obj-y) which uses dir/ to
76 # tell kbuild to descend
77 subdir-obj-y := $(filter %/built-in.o, $(obj-y))
78
79 # Replace multi-part objects by their individual parts, look at local dir only
80 real-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)
81 real-objs-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m)))
82
83 # Add subdir path
84
85 extra-y         := $(addprefix $(obj)/,$(extra-y))
86 always-y        := $(addprefix $(obj)/,$(always-y))
87 always          := $(addprefix $(obj)/,$(always))
88 targets         := $(addprefix $(obj)/,$(targets))
89 modorder        := $(addprefix $(obj)/,$(modorder))
90 obj-y           := $(addprefix $(obj)/,$(obj-y))
91 obj-m           := $(addprefix $(obj)/,$(obj-m))
92 lib-y           := $(addprefix $(obj)/,$(lib-y))
93 subdir-obj-y    := $(addprefix $(obj)/,$(subdir-obj-y))
94 real-objs-y     := $(addprefix $(obj)/,$(real-objs-y))
95 real-objs-m     := $(addprefix $(obj)/,$(real-objs-m))
96 single-used-m   := $(addprefix $(obj)/,$(single-used-m))
97 multi-used-y    := $(addprefix $(obj)/,$(multi-used-y))
98 multi-used-m    := $(addprefix $(obj)/,$(multi-used-m))
99 multi-objs-y    := $(addprefix $(obj)/,$(multi-objs-y))
100 multi-objs-m    := $(addprefix $(obj)/,$(multi-objs-m))
101 multi-dtb-y     := $(addprefix $(obj)/,$(multi-dtb-y))
102 real-dtb-y      := $(addprefix $(obj)/,$(real-dtb-y))
103 subdir-ym       := $(addprefix $(obj)/,$(subdir-ym))
104
105 # These flags are needed for modversions and compiling, so we define them here
106 # already
107 # $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will
108 # end up in (or would, if it gets compiled in)
109 # Note: Files that end up in two or more modules are compiled without the
110 #       KBUILD_MODNAME definition. The reason is that any made-up name would
111 #       differ in different configs.
112 name-fix = $(squote)$(quote)$(subst $(comma),_,$(subst -,_,$1))$(quote)$(squote)
113 basename_flags = -DKBUILD_BASENAME=$(call name-fix,$(basetarget))
114 modname_flags  = $(if $(filter 1,$(words $(modname))),\
115                  -DKBUILD_MODNAME=$(call name-fix,$(modname)))
116
117 orig_c_flags   = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \
118                  $(ccflags-y) $(CFLAGS_$(basetarget).o)
119 _c_flags       = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags))
120 orig_a_flags   = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \
121                  $(asflags-y) $(AFLAGS_$(basetarget).o)
122 _a_flags       = $(filter-out $(AFLAGS_REMOVE_$(basetarget).o), $(orig_a_flags))
123 _cpp_flags     = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F))
124
125 #
126 # Enable gcov profiling flags for a file, directory or for all files depending
127 # on variables GCOV_PROFILE_obj.o, GCOV_PROFILE and CONFIG_GCOV_PROFILE_ALL
128 # (in this order)
129 #
130 ifeq ($(CONFIG_GCOV_KERNEL),y)
131 _c_flags += $(if $(patsubst n%,, \
132                 $(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \
133                 $(CFLAGS_GCOV))
134 endif
135
136 #
137 # Enable address sanitizer flags for kernel except some files or directories
138 # we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE)
139 #
140 ifeq ($(CONFIG_KASAN),y)
141 _c_flags += $(if $(patsubst n%,, \
142                 $(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \
143                 $(CFLAGS_KASAN))
144 endif
145
146 # If building the kernel in a separate objtree expand all occurrences
147 # of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/').
148
149 ifeq ($(KBUILD_SRC),)
150 __c_flags       = $(_c_flags)
151 __a_flags       = $(_a_flags)
152 __cpp_flags     = $(_cpp_flags)
153 else
154
155 # -I$(obj) locates generated .h files
156 # $(call addtree,-I$(obj)) locates .h files in srctree, from generated .c files
157 #   and locates generated .h files
158 # FIXME: Replace both with specific CFLAGS* statements in the makefiles
159 __c_flags       = $(if $(obj),$(call addtree,-I$(src)) -I$(obj)) \
160                   $(call flags,_c_flags)
161 __a_flags       = $(call flags,_a_flags)
162 __cpp_flags     = $(call flags,_cpp_flags)
163 endif
164
165 # Modified for U-Boot: LINUXINCLUDE -> UBOOTINCLUDE
166 c_flags        = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE)     \
167                  $(__c_flags) $(modkern_cflags)                           \
168                  $(basename_flags) $(modname_flags)
169
170 a_flags        = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE)     \
171                  $(__a_flags) $(modkern_aflags)
172
173 cpp_flags      = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE)     \
174                  $(__cpp_flags)
175
176 ld_flags       = $(KBUILD_LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F))
177
178 # Try these files in order to find the U-Boot-specific .dtsi include file
179 u_boot_dtsi_loc = $(srctree)/arch/$(ARCH)/dts/
180
181 u_boot_dtsi_options = $(strip $(wildcard $(u_boot_dtsi_loc)$(basename $(notdir $<))-u-boot.dtsi) \
182         $(wildcard $(u_boot_dtsi_loc)$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi) \
183         $(wildcard $(u_boot_dtsi_loc)$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi) \
184         $(wildcard $(u_boot_dtsi_loc)$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi) \
185         $(wildcard $(u_boot_dtsi_loc)u-boot.dtsi))
186
187 u_boot_dtsi_options_raw = $(warning Automatic .dtsi inclusion: options: \
188         $(u_boot_dtsi_loc)$(basename $(notdir $<))-u-boot.dtsi \
189         $(u_boot_dtsi_loc)$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi \
190         $(u_boot_dtsi_loc)$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi \
191         $(u_boot_dtsi_loc)$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi \
192         $(u_boot_dtsi_loc)u-boot.dtsi ... \
193         found: $(if $(u_boot_dtsi_options),"$(u_boot_dtsi_options)",nothing!))
194
195 # Uncomment for debugging
196 # This shows all the files that were considered and the one that we chose.
197 ifdef DEVICE_TREE_DEBUG
198 u_boot_dtsi_options_debug = $(warning $(u_boot_dtsi_options_raw))
199 endif
200
201 # We use the first match to be included
202 dtsi_include_list = $(strip $(u_boot_dtsi_options_debug) \
203         $(notdir $(firstword $(u_boot_dtsi_options))))
204
205 # Modified for U-Boot
206 upstream_dtsi_include = $(addprefix -I, $(srctree)/dts/upstream/src/ \
207         $(sort $(dir $(wildcard $(srctree)/dts/upstream/src/$(ARCH)/*/*))) \
208         $(if (CONFIG_ARM64), \
209                  $(sort $(dir $(wildcard $(srctree)/dts/upstream/src/arm64/*/*)))))
210 dtc_cpp_flags  = -Wp,-MD,$(depfile).pre.tmp -nostdinc                    \
211                  $(UBOOTINCLUDE)                                         \
212                  -I$(dir $<)                                             \
213                  -I$(u_boot_dtsi_loc)                                     \
214                  -I$(srctree)/arch/$(ARCH)/dts/include                   \
215                  -I$(srctree)/include                                    \
216                  $(upstream_dtsi_include)                                \
217                  -D__ASSEMBLY__                                          \
218                  -undef -D__DTS__
219
220 # Finds the multi-part object the current object will be linked into
221 modname-multi = $(sort $(foreach m,$(multi-used),\
222                 $(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=))))
223
224 # Useful for describing the dependency of composite objects
225 # Usage:
226 #   $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add)
227 define multi_depend
228 $(foreach m, $(notdir $1), \
229         $(eval $(obj)/$m: \
230         $(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s)))))))
231 endef
232
233 # LEX
234 # ---------------------------------------------------------------------------
235 quiet_cmd_flex = LEX     $@
236       cmd_flex = $(LEX) -o$@ -L $<
237
238 $(obj)/%.lex.c: $(src)/%.l FORCE
239         $(call if_changed,flex)
240
241 # YACC
242 # ---------------------------------------------------------------------------
243 quiet_cmd_bison = YACC    $@
244       cmd_bison = $(YACC) -o$@ -t -l $<
245
246 $(obj)/%.tab.c: $(src)/%.y FORCE
247         $(call if_changed,bison)
248
249 quiet_cmd_bison_h = YACC    $@
250       cmd_bison_h = $(YACC) -o/dev/null --defines=$@ -t -l $<
251
252 $(obj)/%.tab.h: $(src)/%.y FORCE
253         $(call if_changed,bison_h)
254
255 # Shipped files
256 # ===========================================================================
257
258 quiet_cmd_shipped = SHIPPED $@
259 cmd_shipped = cat $< > $@
260
261 $(obj)/%: $(src)/%_shipped
262         $(call cmd,shipped)
263
264 # Commands useful for building a boot image
265 # ===========================================================================
266 #
267 #       Use as following:
268 #
269 #       target: source(s) FORCE
270 #               $(if_changed,ld/objcopy/gzip)
271 #
272 #       and add target to extra-y so that we know we have to
273 #       read in the saved command line
274
275 # Linking
276 # ---------------------------------------------------------------------------
277
278 quiet_cmd_ld = LD      $@
279 cmd_ld = $(LD) $(ld_flags) $(filter-out FORCE,$^) -o $@
280
281 # Objcopy
282 # ---------------------------------------------------------------------------
283
284 quiet_cmd_objcopy = OBJCOPY $@
285 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
286
287 # Gzip
288 # ---------------------------------------------------------------------------
289
290 quiet_cmd_gzip = GZIP    $@
291 cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \
292         (rm -f $@ ; false)
293
294 # DTC
295 # ---------------------------------------------------------------------------
296
297 # Disable noisy checks by default
298 ifeq ($(findstring 1,$(KBUILD_ENABLE_EXTRA_GCC_CHECKS)),)
299 DTC_FLAGS += -Wno-unit_address_vs_reg \
300         -Wno-unit_address_format \
301         -Wno-avoid_unnecessary_addr_size \
302         -Wno-alias_paths \
303         -Wno-graph_child_address \
304         -Wno-graph_port \
305         -Wno-unique_unit_address \
306         -Wno-simple_bus_reg \
307         -Wno-pci_device_reg
308
309 # U-Boot specific disables
310 DTC_FLAGS += -Wno-pci_bridge \
311         -Wno-pci_device_bus_num
312 endif
313
314 ifneq ($(findstring 2,$(KBUILD_ENABLE_EXTRA_GCC_CHECKS)),)
315 DTC_FLAGS += -Wnode_name_chars_strict \
316         -Wproperty_name_chars_strict
317 endif
318
319 DTC_FLAGS += $(DTC_FLAGS_$(basetarget))
320
321 # Set -@ if the target is a base DTB that overlay is applied onto
322 DTC_FLAGS += $(if $(filter $(patsubst $(obj)/%,%,$@), $(base-dtb-y)), -@)
323
324 # Generate an assembly file to wrap the output of the device tree compiler
325 quiet_cmd_dt_S_dtb= DTBS    $@
326 # Modified for U-Boot
327 cmd_dt_S_dtb=                                           \
328 (                                                       \
329         echo '.section .dtb.init.rodata,"a"';           \
330         echo '.balign 16';                              \
331         echo '.global __dtb_$(subst -,_,$(*F))_begin';  \
332         echo '__dtb_$(subst -,_,$(*F))_begin:';         \
333         echo '.incbin "$<" ';                           \
334         echo '__dtb_$(subst -,_,$(*F))_end:';           \
335         echo '.global __dtb_$(subst -,_,$(*F))_end';    \
336         echo '.balign 16';                              \
337 ) > $@
338
339 $(obj)/%.dtb.S: $(obj)/%.dtb
340         $(call cmd,dt_S_dtb)
341
342 # Generate an assembly file to wrap the output of the device tree compiler
343 quiet_cmd_dt_S_dtbo= DTBOS   $@
344 # Modified for U-Boot
345 cmd_dt_S_dtbo=                                          \
346 {                                                       \
347         echo '.section .dtb.init.rodata,"a"';           \
348         echo '.balign 16';                              \
349         echo '.global __dtbo_$(subst -,_,$(*F))_begin'; \
350         echo '__dtbo_$(subst -,_,$(*F))_begin:';        \
351         echo '.incbin "$<" ';                           \
352         echo '__dtbo_$(subst -,_,$(*F))_end:';          \
353         echo '.global __dtbo_$(subst -,_,$(*F))_end';   \
354         echo '.balign 16';                              \
355 } > $@
356
357 $(obj)/%.dtbo.S: $(obj)/%.dtbo
358         $(call cmd,dt_S_dtbo)
359
360 ifeq ($(CONFIG_OF_LIBFDT_OVERLAY),y)
361 DTC_FLAGS += -@
362 endif
363
364 quiet_cmd_dtc = DTC     $@
365 # Modified for U-Boot
366 # Bring in any U-Boot-specific include at the end of the file
367 # And finally any custom .dtsi fragments specified with CONFIG_DEVICE_TREE_INCLUDES
368 cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
369         (cat $< > $(pre-tmp)); \
370         $(foreach f,$(subst $(quote),,$(dtsi_include_list) $(CONFIG_DEVICE_TREE_INCLUDES)), \
371           echo '$(pound)include "$(f)"' >> $(pre-tmp);) \
372         $(HOSTCC) -E $(dtc_cpp_flags) -I$(obj) -x assembler-with-cpp -o $(dtc-tmp) $(pre-tmp) ; \
373         $(DTC) -O dtb -o $@ -b 0 \
374                 -i $(dir $<) -i $(u_boot_dtsi_loc) $(DTC_FLAGS) \
375                 -d $(depfile).dtc.tmp $(dtc-tmp) || \
376                 (echo "Check $(shell pwd)/$(pre-tmp) for errors" && false) \
377                 ; \
378         sed "s:$(pre-tmp):$(<):" $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
379
380 capsule_esl_input_file=$(srctree)/lib/efi_loader/capsule_esl.dtsi.in
381 capsule_crt_file=$(subst $(quote),,$(CONFIG_EFI_CAPSULE_CRT_FILE))
382 capsule_esl_dtsi=.capsule_esl.dtsi
383
384 quiet_cmd_capsule_esl_gen = CAPSULE_ESL_GEN $@
385 cmd_capsule_esl_gen = cert-to-efi-sig-list $< $@
386
387 $(obj)/capsule_esl_file: $(capsule_crt_file) FORCE
388 ifeq ($(CONFIG_EFI_CAPSULE_CRT_FILE),"")
389         $(error "CONFIG_EFI_CAPSULE_CRT_FILE is empty, EFI capsule authentication \
390         public key must be specified when CONFIG_EFI_CAPSULE_AUTHENTICATE is enabled")
391 else
392         $(call cmd,capsule_esl_gen)
393 endif
394
395 quiet_cmd_capsule_dtsi_gen = CAPSULE_DTSI_GEN $@
396 cmd_capsule_dtsi_gen = \
397         $(shell sed "s:ESL_BIN_FILE:$(abspath $<):" $(capsule_esl_input_file) > $@)
398
399 $(obj)/$(capsule_esl_dtsi): $(obj)/capsule_esl_file FORCE
400         $(call cmd,capsule_dtsi_gen)
401
402 dtsi_include_list_deps := $(addprefix $(u_boot_dtsi_loc),$(subst $(quote),,$(dtsi_include_list)))
403
404 ifdef CONFIG_EFI_CAPSULE_AUTHENTICATE
405 dtsi_include_list += $(capsule_esl_dtsi)
406 dtsi_include_list_deps += $(obj)/$(capsule_esl_dtsi)
407 endif
408
409 ifneq ($(CHECK_DTBS),)
410 DT_CHECKER ?= dt-validate
411 DT_CHECKER_FLAGS ?= $(if $(DT_SCHEMA_FILES),-l $(DT_SCHEMA_FILES),-m)
412 DT_BINDING_DIR := dts/upstream/Bindings
413 DT_TMP_SCHEMA := $(objtree)/$(DT_BINDING_DIR)/processed-schema.json
414
415 quiet_cmd_dtb = DTC_CHK $@
416       cmd_dtb = $(cmd_dtc) ; $(DT_CHECKER) $(DT_CHECKER_FLAGS) -u $(srctree)/$(DT_BINDING_DIR) -p $(DT_TMP_SCHEMA) $@ || true
417 else
418 quiet_cmd_dtb = $(quiet_cmd_dtc)
419       cmd_dtb = $(cmd_dtc)
420 endif
421
422 $(obj)/%.dtb: $(src)/%.dts $(DTC) $(dtsi_include_list_deps) $(DT_TMP_SCHEMA) FORCE
423         $(call if_changed_dep,dtb)
424
425 pre-tmp = $(subst $(comma),_,$(dot-target).pre.tmp)
426 dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
427
428 # DTCO
429 # ---------------------------------------------------------------------------
430
431 quiet_cmd_dtco = DTCO    $@
432 # Rule for objects only; does not put specific u-boot include at the end
433 # No generation of assembly file either
434 # Modified for U-Boot
435 cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \
436         $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
437         $(DTC) -@ -O dtb -o $@ -b 0 \
438                 -i $(dir $<) $(DTC_FLAGS) \
439                 -d $(depfile).dtc.tmp $(dtc-tmp) ; \
440         cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
441
442 $(obj)/%.dtbo: $(src)/%.dtso $(DTC) FORCE
443         $(call if_changed_dep,dtco)
444
445 quiet_cmd_fdtoverlay = DTOVL   $@
446            cmd_fdtoverlay = fdtoverlay -o $@ -i $(real-prereqs)
447
448 $(multi-dtb-y): FORCE
449         $(call if_changed,fdtoverlay)
450 $(call multi_depend, $(multi-dtb-y), .dtb, -dtbs)
451
452 # Fonts
453 # ---------------------------------------------------------------------------
454
455 # Generate an assembly file to wrap the font data
456 quiet_cmd_S_ttf= TTF     $@
457 # Modified for U-Boot
458 cmd_S_ttf=                                              \
459 (                                                       \
460         echo '.section .rodata.ttf.init,"a"';           \
461         echo '.balign 16';                              \
462         echo '.global __ttf_$(*F)_begin';               \
463         echo '__ttf_$(*F)_begin:';                      \
464         echo '.incbin "$<" ';                           \
465         echo '__ttf_$(*F)_end:';                        \
466         echo '.global __ttf_$(*F)_end';                 \
467         echo '.balign 16';                              \
468 ) > $@
469
470 $(obj)/%.S: $(src)/%.ttf
471         $(call cmd,S_ttf)
472
473 # Splash logos
474 # ---------------------------------------------------------------------------
475
476 # Generate an assembly file to wrap the splash data
477 quiet_cmd_S_splash= TTF     $@
478 # Modified for U-Boot
479 cmd_S_splash=                                           \
480 (                                                       \
481         echo '.section .rodata.splash.init,"a"';                \
482         echo '.balign 16';                              \
483         echo '.global __splash_$(*F)_begin';            \
484         echo '__splash_$(*F)_begin:';                   \
485         echo '.incbin "$<" ';                           \
486         echo '__splash_$(*F)_end:';                     \
487         echo '.global __splash_$(*F)_end';                      \
488         echo '.balign 16';                              \
489 ) > $@
490
491 $(obj)/%.S: $(src)/%.bmp
492         $(call cmd,S_splash)
493
494 # EFI applications
495 # A Makefile target *.efi is built as EFI application.
496 # A Makefile target *_efi.S wraps *.efi as built-in EFI application.
497 # ---------------------------------------------------------------------------
498
499 # Generate an assembly file to wrap the EFI app
500 cmd_S_efi=                                      \
501 (                                               \
502         echo '.section .rodata.$*.init,"a"';    \
503         echo '.balign 16';                      \
504         echo '.global __efi_$*_begin';          \
505         echo '__efi_$*_begin:';                 \
506         echo '.incbin "$<" ';                   \
507         echo '__efi_$*_end:';                   \
508         echo '.global __efi_$*_end';            \
509         echo '.balign 16';                      \
510 ) > $@
511
512 $(obj)/%_efi.S: $(obj)/%.efi
513         $(call cmd,S_efi)
514
515 quiet_cmd_efi_objcopy = OBJCOPY $@
516 cmd_efi_objcopy = $(OBJCOPY) -j .header -j .text -j .sdata -j .data -j \
517                 .dynamic -j .dynsym  -j .rel* -j .rela* -j .reloc \
518                 $(if $(EFI_TARGET),$(EFI_TARGET),-O binary) $^ $@
519
520 $(obj)/%.efi: $(obj)/%_efi.so
521         $(call cmd,efi_objcopy)
522
523 KBUILD_EFILDFLAGS = -nostdlib -zexecstack -znocombreloc -znorelro
524 KBUILD_EFILDFLAGS += $(call ld-option,--no-warn-rwx-segments)
525 quiet_cmd_efi_ld = LD      $@
526 cmd_efi_ld = $(LD) $(KBUILD_EFILDFLAGS) -T $(EFI_LDS_PATH) \
527                 -shared -Bsymbolic -s $^ -o $@
528
529 EFI_LDS_PATH = $(srctree)/arch/$(ARCH)/lib/$(EFI_LDS)
530
531 $(obj)/efi_crt0.o: $(srctree)/arch/$(ARCH)/lib/$(EFI_CRT0:.o=.S) FORCE
532         $(call if_changed_dep,as_o_S)
533
534 $(obj)/efi_reloc.o: $(srctree)/arch/$(ARCH)/lib/$(EFI_RELOC:.o=.c) $(recordmcount_source) FORCE
535         $(call cmd,force_checksrc)
536         $(call if_changed_rule,cc_o_c)
537
538 $(obj)/%_efi.so: $(obj)/%.o $(obj)/efi_crt0.o $(obj)/efi_reloc.o $(obj)/efi_freestanding.o
539         $(call cmd,efi_ld)
540
541 targets += $(obj)/efi_crt0.o $(obj)/efi_reloc.o $(obj)/efi_freestanding.o
542
543 CFLAGS_REMOVE_efi_reloc.o := $(LTO_CFLAGS)
544 CFLAGS_REMOVE_efi_freestanding.o := $(LTO_CFLAGS)
545
546 # ACPI
547 # ---------------------------------------------------------------------------
548 #
549 # This first sends the file (typically dsdt.asl) through the preprocessor
550 # resolve includes and any CONFIG options used. This produces dsdt.asl.tmp
551 # which is pure ASL code. The Intel ASL (ACPI (Advanced Configuration and Power
552 # Interface) Source Language compiler (iasl) then converts this ASL code into a
553 # C file containing the hex data to build into U-Boot. This file is called
554 # dsdt_generated.hex (despite us setting the prefix to .../dsdt_generated.asl.tmp)
555 # so must be renamed to dsdt_generated.c for consumption by the build system.
556 ASL_TMP = $(patsubst %.c,%.asl.tmp,$@)
557
558 quiet_cmd_acpi_c_asl= ASL     $<
559 cmd_acpi_c_asl=         \
560         $(CPP) -x assembler-with-cpp -D__ASSEMBLY__ -D__ACPI__ \
561                 -P $(UBOOTINCLUDE) -o $(ASL_TMP) $< && \
562         iasl -p $@ -I $(srctree)/board/$(BOARDDIR) -tc $(ASL_TMP) \
563                 $(if $(KBUILD_VERBOSE:1=), >/dev/null) && \
564         mv $(patsubst %.c,%.hex,$@) $@
565
566 $(obj)/dsdt_generated.c:    $(src)/dsdt.asl
567         $(call cmd,acpi_c_asl)
568         $(Q)sed -i -e "s,dsdt_generated_aml_code,AmlCode," $@
569
570 # Bzip2
571 # ---------------------------------------------------------------------------
572
573 # Bzip2 and LZMA do not include size in file... so we have to fake that;
574 # append the size as a 32-bit littleendian number as gzip does.
575 size_append = printf $(shell                                            \
576 dec_size=0;                                                             \
577 for F in $1; do                                                         \
578         fsize=$$(stat -c "%s" $$F);                                     \
579         dec_size=$$(expr $$dec_size + $$fsize);                         \
580 done;                                                                   \
581 printf "%08x\n" $$dec_size |                                            \
582         sed 's/\(..\)/\1 /g' | {                                        \
583                 read ch0 ch1 ch2 ch3;                                   \
584                 for ch in $$ch3 $$ch2 $$ch1 $$ch0; do                   \
585                         printf '%s%03o' '\\' $$((0x$$ch));              \
586                 done;                                                   \
587         }                                                               \
588 )
589
590 quiet_cmd_bzip2 = BZIP2   $@
591 cmd_bzip2 = (cat $(filter-out FORCE,$^) | \
592         bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
593         (rm -f $@ ; false)
594
595 # Lzma
596 # ---------------------------------------------------------------------------
597
598 quiet_cmd_lzma = LZMA    $@
599 cmd_lzma = (cat $(filter-out FORCE,$^) | \
600         lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
601         (rm -f $@ ; false)
602
603 quiet_cmd_lzo = LZO     $@
604 cmd_lzo = (cat $(filter-out FORCE,$^) | \
605         lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
606         (rm -f $@ ; false)
607
608 quiet_cmd_lz4 = LZ4     $@
609 cmd_lz4 = (cat $(filter-out FORCE,$^) | \
610         lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
611         (rm -f $@ ; false)
612
613 # U-Boot mkimage
614 # ---------------------------------------------------------------------------
615
616 MKIMAGE := $(srctree)/scripts/mkuboot.sh
617
618 # SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces
619 # the number of overrides in arch makefiles
620 UIMAGE_ARCH ?= $(SRCARCH)
621 UIMAGE_COMPRESSION ?= $(if $(2),$(2),none)
622 UIMAGE_OPTS-y ?=
623 UIMAGE_TYPE ?= kernel
624 UIMAGE_LOADADDR ?= arch_must_set_this
625 UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR)
626 UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)'
627 UIMAGE_IN ?= $<
628 UIMAGE_OUT ?= $@
629
630 quiet_cmd_uimage = UIMAGE  $(UIMAGE_OUT)
631       cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \
632                         -C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \
633                         -T $(UIMAGE_TYPE) \
634                         -a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \
635                         -n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT)
636
637 # XZ
638 # ---------------------------------------------------------------------------
639 # Use xzkern to compress the kernel image and xzmisc to compress other things.
640 #
641 # xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage
642 # of the kernel decompressor. A BCJ filter is used if it is available for
643 # the target architecture. xzkern also appends uncompressed size of the data
644 # using size_append. The .xz format has the size information available at
645 # the end of the file too, but it's in more complex format and it's good to
646 # avoid changing the part of the boot code that reads the uncompressed size.
647 # Note that the bytes added by size_append will make the xz tool think that
648 # the file is corrupt. This is expected.
649 #
650 # xzmisc doesn't use size_append, so it can be used to create normal .xz
651 # files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very
652 # big dictionary would increase the memory usage too much in the multi-call
653 # decompression mode. A BCJ filter isn't used either.
654 quiet_cmd_xzkern = XZKERN  $@
655 cmd_xzkern = (cat $(filter-out FORCE,$^) | \
656         sh $(srctree)/scripts/xz_wrap.sh && \
657         $(call size_append, $(filter-out FORCE,$^))) > $@ || \
658         (rm -f $@ ; false)
659
660 quiet_cmd_xzmisc = XZMISC  $@
661 cmd_xzmisc = (cat $(filter-out FORCE,$^) | \
662         xz --check=crc32 --lzma2=dict=1MiB) > $@ || \
663         (rm -f $@ ; false)
664
665 # Additional commands for U-Boot
666 #
667 # bin2c
668 # ---------------------------------------------------------------------------
669 quiet_cmd_bin2c = BIN2C   $@
670       cmd_bin2c = $(objtree)/scripts/bin2c $2 < $< > $@
671
672 # mkimage
673 # ---------------------------------------------------------------------------
674 MKIMAGEOUTPUT ?= /dev/null
675 quiet_cmd_mkimage = MKIMAGE $@
676 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
677         >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
678
679 # fdtgrep
680 # ---------------------------------------------------------------------------
681 # Pass the original device tree file through fdtgrep twice. The first pass
682 # removes any unwanted nodes (i.e. those which don't have the
683 # 'bootph-all' property and thus are not needed by SPL. The second
684 # pass removes various unused properties from the remaining nodes.
685 # The output is typically a much smaller device tree file.
686
687 ifdef CONFIG_OF_TAG_MIGRATE
688 # Support the old tags for a migration period
689 migrate_tpl := -b u-boot,dm-pre-reloc -b u-boot,dm-tpl
690 migrate_vpl := -b u-boot,dm-pre-reloc -b u-boot,dm-vpl
691 migrate_spl := -b u-boot,dm-pre-reloc -b u-boot,dm-spl
692 migrate_all := -P u-boot,dm-pre-reloc \
693         -P u-boot,dm-spl -P u-boot,dm-tpl -P u-boot,dm-vpl
694 endif
695
696 ifeq ($(CONFIG_VPL_BUILD),y)
697 fdtgrep_props := -b bootph-all -b bootph-verify $(migrate_vpl)
698 else
699 ifeq ($(CONFIG_TPL_BUILD),y)
700 fdtgrep_props := -b bootph-all -b bootph-pre-sram $(migrate_tpl)
701 else
702 fdtgrep_props := -b bootph-all -b bootph-pre-ram $(migrate_spl)
703 endif
704 endif
705
706 # This rule produces the .dtb for an SPL build.
707 #
708 # The first fdtgrep keeps nodes with the above properties (with -u ensuring that
709 # the properties are implied in all parents of a matching node). The root node
710 # is always included, along with /chosen and /config nodes. Referenced aliases
711 # (i.e. properties in /aliases which point to an incldued node) are also
712 # included.
713 #
714 # The second fdtgrep removes all bootph properties along with unused strings
715 # and any properties in CONFIG_OF_SPL_REMOVE_PROPS
716 quiet_cmd_fdtgrep = FDTGREP $@
717       cmd_fdtgrep = $(objtree)/tools/fdtgrep $(fdtgrep_props) -u -RT $< \
718                 -n /chosen -n /config -O dtb | \
719         $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
720                 -P bootph-all -P bootph-pre-ram -P bootph-pre-sram \
721                 -P bootph-verify -P bootph-some-ram \
722                 $(migrate_all) \
723                 $(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
724
725 # fdt_rm_props
726 # ---------------------------------------------------------------------------
727 # Pass the original device tree file through fdtgrep. This removes various
728 # unused properties. The output is typically a smaller device tree file.
729 quiet_cmd_fdt_rm_props = FDTGREP $@
730         cmd_fdt_rm_props = cat $< | $(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
731                         $(addprefix -P ,$(subst $\",,$(CONFIG_OF_REMOVE_PROPS)))
732
733 # ASM offsets
734 # ---------------------------------------------------------------------------
735
736 # Default sed regexp - multiline due to syntax constraints
737 define sed-offsets
738         "s:[[:space:]]*\.ascii[[:space:]]*\"\(.*\)\":\1:; \
739         /^->/{s:->#\(.*\):/* \1 */:; \
740         s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
741         s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
742         s:->::; p;}"
743 endef
744
745 # Use filechk to avoid rebuilds when a header changes, but the resulting file
746 # does not
747 define filechk_offsets
748         (set -e; \
749          echo "#ifndef $2"; \
750          echo "#define $2"; \
751          echo "/*"; \
752          echo " * DO NOT MODIFY."; \
753          echo " *"; \
754          echo " * This file was generated by Kbuild"; \
755          echo " */"; \
756          echo ""; \
757          sed -ne $(sed-offsets); \
758          echo ""; \
759          echo "#endif" )
760 endef
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