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Tom Rinif32c8642016-01-14 18:24:44 -05001#
2# SPDX-License-Identifier: GPL-2.0
3#
Masahiro Yamada22433fc2014-02-04 17:24:27 +09004# Backward compatibility
5asflags-y += $(EXTRA_AFLAGS)
6ccflags-y += $(EXTRA_CFLAGS)
7cppflags-y += $(EXTRA_CPPFLAGS)
8ldflags-y += $(EXTRA_LDFLAGS)
9
10#
11# flags that take effect in sub directories
12export KBUILD_SUBDIR_ASFLAGS := $(KBUILD_SUBDIR_ASFLAGS) $(subdir-asflags-y)
13export KBUILD_SUBDIR_CCFLAGS := $(KBUILD_SUBDIR_CCFLAGS) $(subdir-ccflags-y)
14
15# Figure out what we need to build from the various variables
16# ===========================================================================
17
18# When an object is listed to be built compiled-in and modular,
19# only build the compiled-in version
20
21obj-m := $(filter-out $(obj-y),$(obj-m))
22
23# Libraries are always collected in one lib file.
24# Filter out objects already built-in
25
26lib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m)))
27
28
29# Handle objects in subdirs
30# ---------------------------------------------------------------------------
31# o if we encounter foo/ in $(obj-y), replace it by foo/built-in.o
32# and add the directory to the list of dirs to descend into: $(subdir-y)
Masahiro Yamada45f0ad92014-06-16 18:56:38 +090033# o if we encounter foo/ in $(obj-m), remove it from $(obj-m)
Masahiro Yamada22433fc2014-02-04 17:24:27 +090034# and add the directory to the list of dirs to descend into: $(subdir-m)
35
36# Determine modorder.
37# Unfortunately, we don't have information about ordering between -y
38# and -m subdirs. Just put -y's first.
39modorder := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko))
40
41__subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y)))
42subdir-y += $(__subdir-y)
43__subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m)))
44subdir-m += $(__subdir-m)
45obj-y := $(patsubst %/, %/built-in.o, $(obj-y))
46obj-m := $(filter-out %/, $(obj-m))
47
48# Subdirectories we need to descend into
49
50subdir-ym := $(sort $(subdir-y) $(subdir-m))
51
Masahiro Yamada45f0ad92014-06-16 18:56:38 +090052# if $(foo-objs) exists, foo.o is a composite object
Masahiro Yamada22433fc2014-02-04 17:24:27 +090053multi-used-y := $(sort $(foreach m,$(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
54multi-used-m := $(sort $(foreach m,$(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
55multi-used := $(multi-used-y) $(multi-used-m)
56single-used-m := $(sort $(filter-out $(multi-used-m),$(obj-m)))
57
58# Build list of the parts of our composite objects, our composite
59# objects depend on those (obviously)
60multi-objs-y := $(foreach m, $(multi-used-y), $($(m:.o=-objs)) $($(m:.o=-y)))
61multi-objs-m := $(foreach m, $(multi-used-m), $($(m:.o=-objs)) $($(m:.o=-y)))
62multi-objs := $(multi-objs-y) $(multi-objs-m)
63
64# $(subdir-obj-y) is the list of objects in $(obj-y) which uses dir/ to
65# tell kbuild to descend
66subdir-obj-y := $(filter %/built-in.o, $(obj-y))
67
68# $(obj-dirs) is a list of directories that contain object files
69obj-dirs := $(dir $(multi-objs) $(obj-y))
70
71# Replace multi-part objects by their individual parts, look at local dir only
72real-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)
73real-objs-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))),$($(m:.o=-objs)) $($(m:.o=-y)),$(m)))
74
75# Add subdir path
76
77extra-y := $(addprefix $(obj)/,$(extra-y))
78always := $(addprefix $(obj)/,$(always))
79targets := $(addprefix $(obj)/,$(targets))
80modorder := $(addprefix $(obj)/,$(modorder))
81obj-y := $(addprefix $(obj)/,$(obj-y))
82obj-m := $(addprefix $(obj)/,$(obj-m))
83lib-y := $(addprefix $(obj)/,$(lib-y))
84subdir-obj-y := $(addprefix $(obj)/,$(subdir-obj-y))
85real-objs-y := $(addprefix $(obj)/,$(real-objs-y))
86real-objs-m := $(addprefix $(obj)/,$(real-objs-m))
87single-used-m := $(addprefix $(obj)/,$(single-used-m))
88multi-used-y := $(addprefix $(obj)/,$(multi-used-y))
89multi-used-m := $(addprefix $(obj)/,$(multi-used-m))
90multi-objs-y := $(addprefix $(obj)/,$(multi-objs-y))
91multi-objs-m := $(addprefix $(obj)/,$(multi-objs-m))
92subdir-ym := $(addprefix $(obj)/,$(subdir-ym))
93obj-dirs := $(addprefix $(obj)/,$(obj-dirs))
94
95# These flags are needed for modversions and compiling, so we define them here
96# already
Masahiro Yamada45f0ad92014-06-16 18:56:38 +090097# $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will
Masahiro Yamada22433fc2014-02-04 17:24:27 +090098# end up in (or would, if it gets compiled in)
99# Note: Files that end up in two or more modules are compiled without the
100# KBUILD_MODNAME definition. The reason is that any made-up name would
101# differ in different configs.
102name-fix = $(subst $(comma),_,$(subst -,_,$1))
103basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(basetarget)))"
104modname_flags = $(if $(filter 1,$(words $(modname))),\
105 -D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))")
106
Masahiro Yamada026f9cf2014-03-05 16:59:40 +0900107orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900108 $(ccflags-y) $(CFLAGS_$(basetarget).o)
109_c_flags = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags))
Simon Glass3834f412015-07-31 09:31:18 -0600110orig_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900111 $(asflags-y) $(AFLAGS_$(basetarget).o)
Simon Glass3834f412015-07-31 09:31:18 -0600112_a_flags = $(filter-out $(AFLAGS_REMOVE_$(basetarget).o), $(orig_a_flags))
Masahiro Yamada026f9cf2014-03-05 16:59:40 +0900113_cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F))
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900114
115#
116# Enable gcov profiling flags for a file, directory or for all files depending
117# on variables GCOV_PROFILE_obj.o, GCOV_PROFILE and CONFIG_GCOV_PROFILE_ALL
118# (in this order)
119#
120ifeq ($(CONFIG_GCOV_KERNEL),y)
121_c_flags += $(if $(patsubst n%,, \
122 $(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \
123 $(CFLAGS_GCOV))
124endif
125
Masahiro Yamada98bd0e02015-07-05 01:56:55 +0900126#
127# Enable address sanitizer flags for kernel except some files or directories
128# we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE)
129#
130ifeq ($(CONFIG_KASAN),y)
131_c_flags += $(if $(patsubst n%,, \
132 $(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \
133 $(CFLAGS_KASAN))
134endif
135
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900136# If building the kernel in a separate objtree expand all occurrences
137# of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/').
138
139ifeq ($(KBUILD_SRC),)
140__c_flags = $(_c_flags)
141__a_flags = $(_a_flags)
142__cpp_flags = $(_cpp_flags)
143else
144
145# -I$(obj) locates generated .h files
146# $(call addtree,-I$(obj)) locates .h files in srctree, from generated .c files
147# and locates generated .h files
148# FIXME: Replace both with specific CFLAGS* statements in the makefiles
149__c_flags = $(call addtree,-I$(obj)) $(call flags,_c_flags)
150__a_flags = $(call flags,_a_flags)
151__cpp_flags = $(call flags,_cpp_flags)
152endif
153
Masahiro Yamada6825a952014-02-04 17:24:28 +0900154# Modified for U-Boot: LINUXINCLUDE -> UBOOTINCLUDE
155c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900156 $(__c_flags) $(modkern_cflags) \
157 -D"KBUILD_STR(s)=\#s" $(basename_flags) $(modname_flags)
158
Masahiro Yamada6825a952014-02-04 17:24:28 +0900159a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900160 $(__a_flags) $(modkern_aflags)
161
Masahiro Yamada6825a952014-02-04 17:24:28 +0900162cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900163 $(__cpp_flags)
164
165ld_flags = $(LDFLAGS) $(ldflags-y)
166
Simon Glass6d427c62016-11-25 20:15:59 -0700167# Try these files in order to find the U-Boot-specific .dtsi include file
Simon Glass511fd0b2017-11-12 21:52:05 -0700168u_boot_dtsi_options = $(strip $(wildcard $(dir $<)$(basename $(notdir $<))-u-boot.dtsi) \
Tom Rini0f7faf02017-05-24 11:04:03 -0400169 $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi) \
170 $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi) \
171 $(wildcard $(dir $<)$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi) \
Simon Glass511fd0b2017-11-12 21:52:05 -0700172 $(wildcard $(dir $<)u-boot.dtsi))
173
174u_boot_dtsi_options_raw = $(warning Automatic .dtsi inclusion: options: \
175 $(dir $<)$(basename $(notdir $<))-u-boot.dtsi \
176 $(dir $<)$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi \
177 $(dir $<)$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi \
178 $(dir $<)$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi \
179 $(dir $<)u-boot.dtsi ... \
180 found: $(if $(u_boot_dtsi_options),"$(u_boot_dtsi_options)",nothing!))
Simon Glass6d427c62016-11-25 20:15:59 -0700181
182# Uncomment for debugging
Simon Glass511fd0b2017-11-12 21:52:05 -0700183# This shows all the files that were considered and the one that we chose.
184# u_boot_dtsi_options_debug = $(u_boot_dtsi_options_raw)
Simon Glass6d427c62016-11-25 20:15:59 -0700185
186# We use the first match
Simon Glass511fd0b2017-11-12 21:52:05 -0700187u_boot_dtsi = $(strip $(u_boot_dtsi_options_debug) \
188 $(notdir $(firstword $(u_boot_dtsi_options))))
Simon Glass6d427c62016-11-25 20:15:59 -0700189
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +0900190# Modified for U-Boot
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900191dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +0900192 -I$(srctree)/arch/$(ARCH)/dts \
Simon Glass5957ac22014-06-11 23:29:44 -0600193 -I$(srctree)/arch/$(ARCH)/dts/include \
Simon Glassb116aff2016-11-25 20:15:58 -0700194 -Iinclude \
195 -I$(srctree)/include \
196 -I$(srctree)/arch/$(ARCH)/include \
197 -include $(srctree)/include/linux/kconfig.h \
198 -D__ASSEMBLY__ \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900199 -undef -D__DTS__
200
201# Finds the multi-part object the current object will be linked into
202modname-multi = $(sort $(foreach m,$(multi-used),\
203 $(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=))))
204
Masahiro Yamadacb6e7b02014-10-30 11:06:10 +0900205# Useful for describing the dependency of composite objects
206# Usage:
207# $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add)
208define multi_depend
209$(foreach m, $(notdir $1), \
210 $(eval $(obj)/$m: \
211 $(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s)))))))
212endef
213
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900214ifdef REGENERATE_PARSERS
215
216# GPERF
217# ---------------------------------------------------------------------------
218quiet_cmd_gperf = GPERF $@
219 cmd_gperf = gperf -t --output-file $@ -a -C -E -g -k 1,3,$$ -p -t $<
220
221.PRECIOUS: $(src)/%.hash.c_shipped
222$(src)/%.hash.c_shipped: $(src)/%.gperf
223 $(call cmd,gperf)
224
225# LEX
226# ---------------------------------------------------------------------------
227LEX_PREFIX = $(if $(LEX_PREFIX_${baseprereq}),$(LEX_PREFIX_${baseprereq}),yy)
228
229quiet_cmd_flex = LEX $@
230 cmd_flex = flex -o$@ -L -P $(LEX_PREFIX) $<
231
232.PRECIOUS: $(src)/%.lex.c_shipped
233$(src)/%.lex.c_shipped: $(src)/%.l
234 $(call cmd,flex)
235
236# YACC
237# ---------------------------------------------------------------------------
238YACC_PREFIX = $(if $(YACC_PREFIX_${baseprereq}),$(YACC_PREFIX_${baseprereq}),yy)
239
240quiet_cmd_bison = YACC $@
241 cmd_bison = bison -o$@ -t -l -p $(YACC_PREFIX) $<
242
243.PRECIOUS: $(src)/%.tab.c_shipped
244$(src)/%.tab.c_shipped: $(src)/%.y
245 $(call cmd,bison)
246
247quiet_cmd_bison_h = YACC $@
248 cmd_bison_h = bison -o/dev/null --defines=$@ -t -l -p $(YACC_PREFIX) $<
249
250.PRECIOUS: $(src)/%.tab.h_shipped
251$(src)/%.tab.h_shipped: $(src)/%.y
252 $(call cmd,bison_h)
253
254endif
255
256# Shipped files
257# ===========================================================================
258
259quiet_cmd_shipped = SHIPPED $@
260cmd_shipped = cat $< > $@
261
262$(obj)/%: $(src)/%_shipped
263 $(call cmd,shipped)
264
265# Commands useful for building a boot image
266# ===========================================================================
Masahiro Yamada45f0ad92014-06-16 18:56:38 +0900267#
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900268# Use as following:
269#
270# target: source(s) FORCE
271# $(if_changed,ld/objcopy/gzip)
272#
273# and add target to extra-y so that we know we have to
274# read in the saved command line
275
276# Linking
277# ---------------------------------------------------------------------------
278
279quiet_cmd_ld = LD $@
280cmd_ld = $(LD) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \
Masahiro Yamada45f0ad92014-06-16 18:56:38 +0900281 $(filter-out FORCE,$^) -o $@
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900282
283# Objcopy
284# ---------------------------------------------------------------------------
285
286quiet_cmd_objcopy = OBJCOPY $@
287cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
288
289# Gzip
290# ---------------------------------------------------------------------------
291
292quiet_cmd_gzip = GZIP $@
293cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \
294 (rm -f $@ ; false)
295
296# DTC
297# ---------------------------------------------------------------------------
298
299# Generate an assembly file to wrap the output of the device tree compiler
300quiet_cmd_dt_S_dtb= DTB $@
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +0900301# Modified for U-Boot
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900302cmd_dt_S_dtb= \
303( \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900304 echo '.section .dtb.init.rodata,"a"'; \
Simon Glass5c30bf42014-11-14 18:18:19 -0700305 echo '.balign 16'; \
Maxime Ripard716f9082016-07-05 10:26:35 +0200306 echo '.global __dtb_$(subst -,_,$(*F))_begin'; \
307 echo '__dtb_$(subst -,_,$(*F))_begin:'; \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900308 echo '.incbin "$<" '; \
Maxime Ripard716f9082016-07-05 10:26:35 +0200309 echo '__dtb_$(subst -,_,$(*F))_end:'; \
310 echo '.global __dtb_$(subst -,_,$(*F))_end'; \
Simon Glass5c30bf42014-11-14 18:18:19 -0700311 echo '.balign 16'; \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900312) > $@
313
314$(obj)/%.dtb.S: $(obj)/%.dtb
315 $(call cmd,dt_S_dtb)
316
317quiet_cmd_dtc = DTC $@
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +0900318# Modified for U-Boot
Tom Rini74529462017-05-17 14:06:08 -0400319# Bring in any U-Boot-specific include at the end of the file
Masahiro Yamada98bd0e02015-07-05 01:56:55 +0900320cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
Masahiro Yamadaecc97092017-10-11 23:56:10 +0900321 (cat $<; $(if $(u_boot_dtsi),echo '\#include "$(u_boot_dtsi)"')) > $(pre-tmp); \
322 $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $(pre-tmp) ; \
Pavel Machekc4aaf2e2015-04-06 15:46:44 +0200323 $(DTC) -O dtb -o $@ -b 0 \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900324 -i $(dir $<) $(DTC_FLAGS) \
325 -d $(depfile).dtc.tmp $(dtc-tmp) ; \
326 cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
327
328$(obj)/%.dtb: $(src)/%.dts FORCE
329 $(call if_changed_dep,dtc)
330
Masahiro Yamadaecc97092017-10-11 23:56:10 +0900331pre-tmp = $(subst $(comma),_,$(dot-target).pre.tmp)
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900332dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
333
Pantelis Antoniouda0b3a92017-09-04 23:12:20 +0300334# DTCO
335# ---------------------------------------------------------------------------
336
337quiet_cmd_dtco = DTCO $@
338# Rule for objects only; does not put specific u-boot include at the end
339# No generation of assembly file either
340# Modified for U-Boot
341cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \
342 $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) - ; \
343 $(DTC) -@ -O dtb -o $@ -b 0 \
344 -i $(dir $<) $(DTC_FLAGS) \
345 -d $(depfile).dtc.tmp $(dtc-tmp) ; \
346 cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
347
348$(obj)/%.dtbo: $(src)/%.dts FORCE
349 $(call if_changed_dep,dtco)
350
Simon Glass30a1dca2016-01-14 18:10:35 -0700351# Fonts
352# ---------------------------------------------------------------------------
353
354# Generate an assembly file to wrap the font data
355quiet_cmd_S_ttf= TTF $@
356# Modified for U-Boot
357cmd_S_ttf= \
358( \
359 echo '.section .rodata.ttf.init,"a"'; \
360 echo '.balign 16'; \
361 echo '.global __ttf_$(*F)_begin'; \
362 echo '__ttf_$(*F)_begin:'; \
363 echo '.incbin "$<" '; \
364 echo '__ttf_$(*F)_end:'; \
365 echo '.global __ttf_$(*F)_end'; \
366 echo '.balign 16'; \
367) > $@
368
369$(obj)/%.S: $(src)/%.ttf
370 $(call cmd,S_ttf)
371
Heinrich Schuchardtb0763102017-09-05 16:07:17 +0200372# EFI applications
373# A Makefile target *.efi is built as EFI application.
374# A Makefile target *_efi.S wraps *.efi as built-in EFI application.
Simon Glassc7ae3df2016-11-07 08:47:08 -0700375# ---------------------------------------------------------------------------
376
377# Generate an assembly file to wrap the EFI app
Heinrich Schuchardtb0763102017-09-05 16:07:17 +0200378cmd_S_efi= \
379( \
380 echo '.section .rodata.$*.init,"a"'; \
381 echo '.balign 16'; \
382 echo '.global __efi_$*_begin'; \
383 echo '__efi_$*_begin:'; \
384 echo '.incbin "$<" '; \
385 echo '__efi_$*_end:'; \
386 echo '.global __efi_$*_end'; \
387 echo '.balign 16'; \
Simon Glassc7ae3df2016-11-07 08:47:08 -0700388) > $@
389
390$(obj)/%_efi.S: $(obj)/%.efi
391 $(call cmd,S_efi)
392
Andrew F. Davisf19f1312017-01-06 16:23:59 -0600393quiet_cmd_efi_objcopy = OBJCOPY $@
394cmd_efi_objcopy = $(OBJCOPY) -j .header -j .text -j .sdata -j .data -j \
395 .dynamic -j .dynsym -j .rel* -j .rela* -j .reloc \
Simon Glassc7ae3df2016-11-07 08:47:08 -0700396 $(if $(EFI_TARGET),$(EFI_TARGET),-O binary) $^ $@
397
Heinrich Schuchardtb0763102017-09-05 16:07:17 +0200398$(obj)/%.efi: $(obj)/%_efi.so
Andrew F. Davisf19f1312017-01-06 16:23:59 -0600399 $(call cmd,efi_objcopy)
400
401quiet_cmd_efi_ld = LD $@
402cmd_efi_ld = $(LD) -nostdlib -znocombreloc -T $(EFI_LDS_PATH) -shared \
403 -Bsymbolic $^ -o $@
404
Simon Glassc7ae3df2016-11-07 08:47:08 -0700405EFI_LDS_PATH = $(srctree)/arch/$(ARCH)/lib/$(EFI_LDS)
406
Heinrich Schuchardtb0763102017-09-05 16:07:17 +0200407$(obj)/%_efi.so: $(obj)/%.o arch/$(ARCH)/lib/$(EFI_CRT0) \
Simon Glassc7ae3df2016-11-07 08:47:08 -0700408 arch/$(ARCH)/lib/$(EFI_RELOC)
Andrew F. Davisf19f1312017-01-06 16:23:59 -0600409 $(call cmd,efi_ld)
Simon Glassc7ae3df2016-11-07 08:47:08 -0700410
Saket Sinha867bcb62015-08-22 12:20:55 +0530411# ACPI
412# ---------------------------------------------------------------------------
Bin Meng68af8d82016-05-07 07:46:16 -0700413quiet_cmd_acpi_c_asl= ASL $<
Saket Sinha867bcb62015-08-22 12:20:55 +0530414cmd_acpi_c_asl= \
Bin Meng66835842016-05-25 19:19:08 -0700415 $(CPP) -x assembler-with-cpp -D__ASSEMBLY__ -P $(UBOOTINCLUDE) -o $<.tmp $<; \
Andy Shevchenko06054b12017-07-21 22:32:00 +0300416 iasl -p $< -tc $<.tmp $(if $(KBUILD_VERBOSE:1=), >/dev/null) && \
Saket Sinha867bcb62015-08-22 12:20:55 +0530417 mv $(patsubst %.asl,%.hex,$<) $@
418
Bin Meng3a2a3d02016-05-07 07:46:17 -0700419$(obj)/dsdt.c: $(src)/dsdt.asl
Saket Sinha867bcb62015-08-22 12:20:55 +0530420 $(call cmd,acpi_c_asl)
421
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900422# Bzip2
423# ---------------------------------------------------------------------------
424
425# Bzip2 and LZMA do not include size in file... so we have to fake that;
426# append the size as a 32-bit littleendian number as gzip does.
427size_append = printf $(shell \
428dec_size=0; \
429for F in $1; do \
430 fsize=$$(stat -c "%s" $$F); \
431 dec_size=$$(expr $$dec_size + $$fsize); \
432done; \
433printf "%08x\n" $$dec_size | \
434 sed 's/\(..\)/\1 /g' | { \
435 read ch0 ch1 ch2 ch3; \
436 for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \
437 printf '%s%03o' '\\' $$((0x$$ch)); \
438 done; \
439 } \
440)
441
442quiet_cmd_bzip2 = BZIP2 $@
443cmd_bzip2 = (cat $(filter-out FORCE,$^) | \
444 bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
445 (rm -f $@ ; false)
446
447# Lzma
448# ---------------------------------------------------------------------------
449
450quiet_cmd_lzma = LZMA $@
451cmd_lzma = (cat $(filter-out FORCE,$^) | \
452 lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
453 (rm -f $@ ; false)
454
455quiet_cmd_lzo = LZO $@
456cmd_lzo = (cat $(filter-out FORCE,$^) | \
457 lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
458 (rm -f $@ ; false)
459
460quiet_cmd_lz4 = LZ4 $@
461cmd_lz4 = (cat $(filter-out FORCE,$^) | \
462 lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
463 (rm -f $@ ; false)
464
465# U-Boot mkimage
466# ---------------------------------------------------------------------------
467
468MKIMAGE := $(srctree)/scripts/mkuboot.sh
469
470# SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces
471# the number of overrides in arch makefiles
472UIMAGE_ARCH ?= $(SRCARCH)
473UIMAGE_COMPRESSION ?= $(if $(2),$(2),none)
474UIMAGE_OPTS-y ?=
475UIMAGE_TYPE ?= kernel
476UIMAGE_LOADADDR ?= arch_must_set_this
477UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR)
478UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)'
479UIMAGE_IN ?= $<
480UIMAGE_OUT ?= $@
481
482quiet_cmd_uimage = UIMAGE $(UIMAGE_OUT)
483 cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \
484 -C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \
485 -T $(UIMAGE_TYPE) \
486 -a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \
487 -n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT)
488
489# XZ
490# ---------------------------------------------------------------------------
491# Use xzkern to compress the kernel image and xzmisc to compress other things.
492#
493# xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage
494# of the kernel decompressor. A BCJ filter is used if it is available for
495# the target architecture. xzkern also appends uncompressed size of the data
496# using size_append. The .xz format has the size information available at
497# the end of the file too, but it's in more complex format and it's good to
498# avoid changing the part of the boot code that reads the uncompressed size.
499# Note that the bytes added by size_append will make the xz tool think that
500# the file is corrupt. This is expected.
501#
502# xzmisc doesn't use size_append, so it can be used to create normal .xz
503# files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very
504# big dictionary would increase the memory usage too much in the multi-call
505# decompression mode. A BCJ filter isn't used either.
506quiet_cmd_xzkern = XZKERN $@
507cmd_xzkern = (cat $(filter-out FORCE,$^) | \
508 sh $(srctree)/scripts/xz_wrap.sh && \
509 $(call size_append, $(filter-out FORCE,$^))) > $@ || \
510 (rm -f $@ ; false)
511
512quiet_cmd_xzmisc = XZMISC $@
513cmd_xzmisc = (cat $(filter-out FORCE,$^) | \
514 xz --check=crc32 --lzma2=dict=1MiB) > $@ || \
515 (rm -f $@ ; false)
Masahiro Yamadaba8dd772014-06-04 10:12:21 +0900516
517# Additional commands for U-Boot
518#
519# mkimage
520# ---------------------------------------------------------------------------
Sven Ebenfeld1f6a6642016-11-06 16:37:58 +0100521MKIMAGEOUTPUT ?= /dev/null
Masahiro Yamadaba8dd772014-06-04 10:12:21 +0900522quiet_cmd_mkimage = MKIMAGE $@
523cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
Sven Ebenfeld1f6a6642016-11-06 16:37:58 +0100524 $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))