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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
Tom Rini0f7faf02017-05-24 11:04:03 -0400168u_boot_dtsi_options = $(wildcard $(dir $<)$(basename $(notdir $<))-u-boot.dtsi) \
169 $(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) \
172 $(wildcard $(dir $<)u-boot.dtsi)
Simon Glass6d427c62016-11-25 20:15:59 -0700173
174# Uncomment for debugging
175# $(warning u_boot_dtsi_options: $(u_boot_dtsi_options))
176
177# We use the first match
178u_boot_dtsi = $(firstword $(u_boot_dtsi_options))
179
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +0900180# Modified for U-Boot
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900181dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +0900182 -I$(srctree)/arch/$(ARCH)/dts \
Simon Glass5957ac22014-06-11 23:29:44 -0600183 -I$(srctree)/arch/$(ARCH)/dts/include \
Simon Glassb116aff2016-11-25 20:15:58 -0700184 -Iinclude \
185 -I$(srctree)/include \
186 -I$(srctree)/arch/$(ARCH)/include \
187 -include $(srctree)/include/linux/kconfig.h \
188 -D__ASSEMBLY__ \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900189 -undef -D__DTS__
190
191# Finds the multi-part object the current object will be linked into
192modname-multi = $(sort $(foreach m,$(multi-used),\
193 $(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=))))
194
Masahiro Yamadacb6e7b02014-10-30 11:06:10 +0900195# Useful for describing the dependency of composite objects
196# Usage:
197# $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add)
198define multi_depend
199$(foreach m, $(notdir $1), \
200 $(eval $(obj)/$m: \
201 $(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s)))))))
202endef
203
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900204ifdef REGENERATE_PARSERS
205
206# GPERF
207# ---------------------------------------------------------------------------
208quiet_cmd_gperf = GPERF $@
209 cmd_gperf = gperf -t --output-file $@ -a -C -E -g -k 1,3,$$ -p -t $<
210
211.PRECIOUS: $(src)/%.hash.c_shipped
212$(src)/%.hash.c_shipped: $(src)/%.gperf
213 $(call cmd,gperf)
214
215# LEX
216# ---------------------------------------------------------------------------
217LEX_PREFIX = $(if $(LEX_PREFIX_${baseprereq}),$(LEX_PREFIX_${baseprereq}),yy)
218
219quiet_cmd_flex = LEX $@
220 cmd_flex = flex -o$@ -L -P $(LEX_PREFIX) $<
221
222.PRECIOUS: $(src)/%.lex.c_shipped
223$(src)/%.lex.c_shipped: $(src)/%.l
224 $(call cmd,flex)
225
226# YACC
227# ---------------------------------------------------------------------------
228YACC_PREFIX = $(if $(YACC_PREFIX_${baseprereq}),$(YACC_PREFIX_${baseprereq}),yy)
229
230quiet_cmd_bison = YACC $@
231 cmd_bison = bison -o$@ -t -l -p $(YACC_PREFIX) $<
232
233.PRECIOUS: $(src)/%.tab.c_shipped
234$(src)/%.tab.c_shipped: $(src)/%.y
235 $(call cmd,bison)
236
237quiet_cmd_bison_h = YACC $@
238 cmd_bison_h = bison -o/dev/null --defines=$@ -t -l -p $(YACC_PREFIX) $<
239
240.PRECIOUS: $(src)/%.tab.h_shipped
241$(src)/%.tab.h_shipped: $(src)/%.y
242 $(call cmd,bison_h)
243
244endif
245
246# Shipped files
247# ===========================================================================
248
249quiet_cmd_shipped = SHIPPED $@
250cmd_shipped = cat $< > $@
251
252$(obj)/%: $(src)/%_shipped
253 $(call cmd,shipped)
254
255# Commands useful for building a boot image
256# ===========================================================================
Masahiro Yamada45f0ad92014-06-16 18:56:38 +0900257#
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900258# Use as following:
259#
260# target: source(s) FORCE
261# $(if_changed,ld/objcopy/gzip)
262#
263# and add target to extra-y so that we know we have to
264# read in the saved command line
265
266# Linking
267# ---------------------------------------------------------------------------
268
269quiet_cmd_ld = LD $@
270cmd_ld = $(LD) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \
Masahiro Yamada45f0ad92014-06-16 18:56:38 +0900271 $(filter-out FORCE,$^) -o $@
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900272
273# Objcopy
274# ---------------------------------------------------------------------------
275
276quiet_cmd_objcopy = OBJCOPY $@
277cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
278
279# Gzip
280# ---------------------------------------------------------------------------
281
282quiet_cmd_gzip = GZIP $@
283cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \
284 (rm -f $@ ; false)
285
286# DTC
287# ---------------------------------------------------------------------------
288
289# Generate an assembly file to wrap the output of the device tree compiler
290quiet_cmd_dt_S_dtb= DTB $@
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +0900291# Modified for U-Boot
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900292cmd_dt_S_dtb= \
293( \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900294 echo '.section .dtb.init.rodata,"a"'; \
Simon Glass5c30bf42014-11-14 18:18:19 -0700295 echo '.balign 16'; \
Maxime Ripard716f9082016-07-05 10:26:35 +0200296 echo '.global __dtb_$(subst -,_,$(*F))_begin'; \
297 echo '__dtb_$(subst -,_,$(*F))_begin:'; \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900298 echo '.incbin "$<" '; \
Maxime Ripard716f9082016-07-05 10:26:35 +0200299 echo '__dtb_$(subst -,_,$(*F))_end:'; \
300 echo '.global __dtb_$(subst -,_,$(*F))_end'; \
Simon Glass5c30bf42014-11-14 18:18:19 -0700301 echo '.balign 16'; \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900302) > $@
303
304$(obj)/%.dtb.S: $(obj)/%.dtb
305 $(call cmd,dt_S_dtb)
306
307quiet_cmd_dtc = DTC $@
Masahiro Yamada6ab6b2a2014-02-05 11:28:25 +0900308# Modified for U-Boot
Tom Rini74529462017-05-17 14:06:08 -0400309# Bring in any U-Boot-specific include at the end of the file
Masahiro Yamada98bd0e02015-07-05 01:56:55 +0900310cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
Simon Glass61b994a2016-11-25 20:16:01 -0700311 cat $< $(if $(u_boot_dtsi),\
Tom Rini74529462017-05-17 14:06:08 -0400312 | sed "$$ a\#include \"$(u_boot_dtsi)\"") | \
Simon Glass6d427c62016-11-25 20:15:59 -0700313 $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) - ; \
Pavel Machekc4aaf2e2015-04-06 15:46:44 +0200314 $(DTC) -O dtb -o $@ -b 0 \
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900315 -i $(dir $<) $(DTC_FLAGS) \
316 -d $(depfile).dtc.tmp $(dtc-tmp) ; \
317 cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
318
319$(obj)/%.dtb: $(src)/%.dts FORCE
320 $(call if_changed_dep,dtc)
321
322dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
323
Pantelis Antoniouda0b3a92017-09-04 23:12:20 +0300324# DTCO
325# ---------------------------------------------------------------------------
326
327quiet_cmd_dtco = DTCO $@
328# Rule for objects only; does not put specific u-boot include at the end
329# No generation of assembly file either
330# Modified for U-Boot
331cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \
332 $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) - ; \
333 $(DTC) -@ -O dtb -o $@ -b 0 \
334 -i $(dir $<) $(DTC_FLAGS) \
335 -d $(depfile).dtc.tmp $(dtc-tmp) ; \
336 cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
337
338$(obj)/%.dtbo: $(src)/%.dts FORCE
339 $(call if_changed_dep,dtco)
340
Simon Glass30a1dca2016-01-14 18:10:35 -0700341# Fonts
342# ---------------------------------------------------------------------------
343
344# Generate an assembly file to wrap the font data
345quiet_cmd_S_ttf= TTF $@
346# Modified for U-Boot
347cmd_S_ttf= \
348( \
349 echo '.section .rodata.ttf.init,"a"'; \
350 echo '.balign 16'; \
351 echo '.global __ttf_$(*F)_begin'; \
352 echo '__ttf_$(*F)_begin:'; \
353 echo '.incbin "$<" '; \
354 echo '__ttf_$(*F)_end:'; \
355 echo '.global __ttf_$(*F)_end'; \
356 echo '.balign 16'; \
357) > $@
358
359$(obj)/%.S: $(src)/%.ttf
360 $(call cmd,S_ttf)
361
Simon Glassc7ae3df2016-11-07 08:47:08 -0700362# EFI Hello World application
363# ---------------------------------------------------------------------------
364
365# Generate an assembly file to wrap the EFI app
366cmd_S_efi= \
367( \
368 echo '.section .rodata.efi.init,"a"'; \
369 echo '.balign 16'; \
370 echo '.global __efi_hello_world_begin'; \
371 echo '__efi_hello_world_begin:'; \
372 echo '.incbin "$<" '; \
373 echo '__efi_hello_world_end:'; \
374 echo '.global __efi_hello_world_end'; \
375 echo '.balign 16'; \
376) > $@
377
378$(obj)/%_efi.S: $(obj)/%.efi
379 $(call cmd,S_efi)
380
Andrew F. Davisf19f1312017-01-06 16:23:59 -0600381quiet_cmd_efi_objcopy = OBJCOPY $@
382cmd_efi_objcopy = $(OBJCOPY) -j .header -j .text -j .sdata -j .data -j \
383 .dynamic -j .dynsym -j .rel* -j .rela* -j .reloc \
Simon Glassc7ae3df2016-11-07 08:47:08 -0700384 $(if $(EFI_TARGET),$(EFI_TARGET),-O binary) $^ $@
385
Andrew F. Davisf19f1312017-01-06 16:23:59 -0600386$(obj)/%.efi: $(obj)/%.so
387 $(call cmd,efi_objcopy)
388
389quiet_cmd_efi_ld = LD $@
390cmd_efi_ld = $(LD) -nostdlib -znocombreloc -T $(EFI_LDS_PATH) -shared \
391 -Bsymbolic $^ -o $@
392
Simon Glassc7ae3df2016-11-07 08:47:08 -0700393EFI_LDS_PATH = $(srctree)/arch/$(ARCH)/lib/$(EFI_LDS)
394
395$(obj)/helloworld.so: $(EFI_LDS_PATH)
396
397$(obj)/helloworld.so: $(obj)/helloworld.o arch/$(ARCH)/lib/$(EFI_CRT0) \
398 arch/$(ARCH)/lib/$(EFI_RELOC)
Andrew F. Davisf19f1312017-01-06 16:23:59 -0600399 $(call cmd,efi_ld)
Simon Glassc7ae3df2016-11-07 08:47:08 -0700400
Saket Sinha867bcb62015-08-22 12:20:55 +0530401# ACPI
402# ---------------------------------------------------------------------------
Bin Meng68af8d82016-05-07 07:46:16 -0700403quiet_cmd_acpi_c_asl= ASL $<
Saket Sinha867bcb62015-08-22 12:20:55 +0530404cmd_acpi_c_asl= \
Bin Meng66835842016-05-25 19:19:08 -0700405 $(CPP) -x assembler-with-cpp -D__ASSEMBLY__ -P $(UBOOTINCLUDE) -o $<.tmp $<; \
Andy Shevchenko06054b12017-07-21 22:32:00 +0300406 iasl -p $< -tc $<.tmp $(if $(KBUILD_VERBOSE:1=), >/dev/null) && \
Saket Sinha867bcb62015-08-22 12:20:55 +0530407 mv $(patsubst %.asl,%.hex,$<) $@
408
Bin Meng3a2a3d02016-05-07 07:46:17 -0700409$(obj)/dsdt.c: $(src)/dsdt.asl
Saket Sinha867bcb62015-08-22 12:20:55 +0530410 $(call cmd,acpi_c_asl)
411
Masahiro Yamada22433fc2014-02-04 17:24:27 +0900412# Bzip2
413# ---------------------------------------------------------------------------
414
415# Bzip2 and LZMA do not include size in file... so we have to fake that;
416# append the size as a 32-bit littleendian number as gzip does.
417size_append = printf $(shell \
418dec_size=0; \
419for F in $1; do \
420 fsize=$$(stat -c "%s" $$F); \
421 dec_size=$$(expr $$dec_size + $$fsize); \
422done; \
423printf "%08x\n" $$dec_size | \
424 sed 's/\(..\)/\1 /g' | { \
425 read ch0 ch1 ch2 ch3; \
426 for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \
427 printf '%s%03o' '\\' $$((0x$$ch)); \
428 done; \
429 } \
430)
431
432quiet_cmd_bzip2 = BZIP2 $@
433cmd_bzip2 = (cat $(filter-out FORCE,$^) | \
434 bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
435 (rm -f $@ ; false)
436
437# Lzma
438# ---------------------------------------------------------------------------
439
440quiet_cmd_lzma = LZMA $@
441cmd_lzma = (cat $(filter-out FORCE,$^) | \
442 lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
443 (rm -f $@ ; false)
444
445quiet_cmd_lzo = LZO $@
446cmd_lzo = (cat $(filter-out FORCE,$^) | \
447 lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
448 (rm -f $@ ; false)
449
450quiet_cmd_lz4 = LZ4 $@
451cmd_lz4 = (cat $(filter-out FORCE,$^) | \
452 lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
453 (rm -f $@ ; false)
454
455# U-Boot mkimage
456# ---------------------------------------------------------------------------
457
458MKIMAGE := $(srctree)/scripts/mkuboot.sh
459
460# SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces
461# the number of overrides in arch makefiles
462UIMAGE_ARCH ?= $(SRCARCH)
463UIMAGE_COMPRESSION ?= $(if $(2),$(2),none)
464UIMAGE_OPTS-y ?=
465UIMAGE_TYPE ?= kernel
466UIMAGE_LOADADDR ?= arch_must_set_this
467UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR)
468UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)'
469UIMAGE_IN ?= $<
470UIMAGE_OUT ?= $@
471
472quiet_cmd_uimage = UIMAGE $(UIMAGE_OUT)
473 cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \
474 -C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \
475 -T $(UIMAGE_TYPE) \
476 -a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \
477 -n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT)
478
479# XZ
480# ---------------------------------------------------------------------------
481# Use xzkern to compress the kernel image and xzmisc to compress other things.
482#
483# xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage
484# of the kernel decompressor. A BCJ filter is used if it is available for
485# the target architecture. xzkern also appends uncompressed size of the data
486# using size_append. The .xz format has the size information available at
487# the end of the file too, but it's in more complex format and it's good to
488# avoid changing the part of the boot code that reads the uncompressed size.
489# Note that the bytes added by size_append will make the xz tool think that
490# the file is corrupt. This is expected.
491#
492# xzmisc doesn't use size_append, so it can be used to create normal .xz
493# files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very
494# big dictionary would increase the memory usage too much in the multi-call
495# decompression mode. A BCJ filter isn't used either.
496quiet_cmd_xzkern = XZKERN $@
497cmd_xzkern = (cat $(filter-out FORCE,$^) | \
498 sh $(srctree)/scripts/xz_wrap.sh && \
499 $(call size_append, $(filter-out FORCE,$^))) > $@ || \
500 (rm -f $@ ; false)
501
502quiet_cmd_xzmisc = XZMISC $@
503cmd_xzmisc = (cat $(filter-out FORCE,$^) | \
504 xz --check=crc32 --lzma2=dict=1MiB) > $@ || \
505 (rm -f $@ ; false)
Masahiro Yamadaba8dd772014-06-04 10:12:21 +0900506
507# Additional commands for U-Boot
508#
509# mkimage
510# ---------------------------------------------------------------------------
Sven Ebenfeld1f6a6642016-11-06 16:37:58 +0100511MKIMAGEOUTPUT ?= /dev/null
Masahiro Yamadaba8dd772014-06-04 10:12:21 +0900512quiet_cmd_mkimage = MKIMAGE $@
513cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
Sven Ebenfeld1f6a6642016-11-06 16:37:58 +0100514 $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))