Merge git://git.denx.de/u-boot-fsl-qoriq
[platform/kernel/u-boot.git] / scripts / Makefile.lib
1 #
2 # SPDX-License-Identifier:      GPL-2.0
3 #
4 # Backward compatibility
5 asflags-y  += $(EXTRA_AFLAGS)
6 ccflags-y  += $(EXTRA_CFLAGS)
7 cppflags-y += $(EXTRA_CPPFLAGS)
8 ldflags-y  += $(EXTRA_LDFLAGS)
9
10 #
11 # flags that take effect in sub directories
12 export KBUILD_SUBDIR_ASFLAGS := $(KBUILD_SUBDIR_ASFLAGS) $(subdir-asflags-y)
13 export 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
21 obj-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
26 lib-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)
33 # o if we encounter foo/ in $(obj-m), remove it from $(obj-m)
34 #   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.
39 modorder        := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko))
40
41 __subdir-y      := $(patsubst %/,%,$(filter %/, $(obj-y)))
42 subdir-y        += $(__subdir-y)
43 __subdir-m      := $(patsubst %/,%,$(filter %/, $(obj-m)))
44 subdir-m        += $(__subdir-m)
45 obj-y           := $(patsubst %/, %/built-in.o, $(obj-y))
46 obj-m           := $(filter-out %/, $(obj-m))
47
48 # Subdirectories we need to descend into
49
50 subdir-ym       := $(sort $(subdir-y) $(subdir-m))
51
52 # if $(foo-objs) exists, foo.o is a composite object
53 multi-used-y := $(sort $(foreach m,$(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
54 multi-used-m := $(sort $(foreach m,$(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m))))
55 multi-used   := $(multi-used-y) $(multi-used-m)
56 single-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)
60 multi-objs-y := $(foreach m, $(multi-used-y), $($(m:.o=-objs)) $($(m:.o=-y)))
61 multi-objs-m := $(foreach m, $(multi-used-m), $($(m:.o=-objs)) $($(m:.o=-y)))
62 multi-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
66 subdir-obj-y := $(filter %/built-in.o, $(obj-y))
67
68 # $(obj-dirs) is a list of directories that contain object files
69 obj-dirs := $(dir $(multi-objs) $(obj-y))
70
71 # Replace multi-part objects by their individual parts, look at local dir only
72 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)
73 real-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
77 extra-y         := $(addprefix $(obj)/,$(extra-y))
78 always          := $(addprefix $(obj)/,$(always))
79 targets         := $(addprefix $(obj)/,$(targets))
80 modorder        := $(addprefix $(obj)/,$(modorder))
81 obj-y           := $(addprefix $(obj)/,$(obj-y))
82 obj-m           := $(addprefix $(obj)/,$(obj-m))
83 lib-y           := $(addprefix $(obj)/,$(lib-y))
84 subdir-obj-y    := $(addprefix $(obj)/,$(subdir-obj-y))
85 real-objs-y     := $(addprefix $(obj)/,$(real-objs-y))
86 real-objs-m     := $(addprefix $(obj)/,$(real-objs-m))
87 single-used-m   := $(addprefix $(obj)/,$(single-used-m))
88 multi-used-y    := $(addprefix $(obj)/,$(multi-used-y))
89 multi-used-m    := $(addprefix $(obj)/,$(multi-used-m))
90 multi-objs-y    := $(addprefix $(obj)/,$(multi-objs-y))
91 multi-objs-m    := $(addprefix $(obj)/,$(multi-objs-m))
92 subdir-ym       := $(addprefix $(obj)/,$(subdir-ym))
93 obj-dirs        := $(addprefix $(obj)/,$(obj-dirs))
94
95 # These flags are needed for modversions and compiling, so we define them here
96 # already
97 # $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will
98 # 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.
102 name-fix = $(subst $(comma),_,$(subst -,_,$1))
103 basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(basetarget)))"
104 modname_flags  = $(if $(filter 1,$(words $(modname))),\
105                  -D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))")
106
107 orig_c_flags   = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \
108                  $(ccflags-y) $(CFLAGS_$(basetarget).o)
109 _c_flags       = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags))
110 orig_a_flags   = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \
111                  $(asflags-y) $(AFLAGS_$(basetarget).o)
112 _a_flags       = $(filter-out $(AFLAGS_REMOVE_$(basetarget).o), $(orig_a_flags))
113 _cpp_flags     = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F))
114
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 #
120 ifeq ($(CONFIG_GCOV_KERNEL),y)
121 _c_flags += $(if $(patsubst n%,, \
122                 $(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \
123                 $(CFLAGS_GCOV))
124 endif
125
126 #
127 # Enable address sanitizer flags for kernel except some files or directories
128 # we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE)
129 #
130 ifeq ($(CONFIG_KASAN),y)
131 _c_flags += $(if $(patsubst n%,, \
132                 $(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \
133                 $(CFLAGS_KASAN))
134 endif
135
136 # If building the kernel in a separate objtree expand all occurrences
137 # of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/').
138
139 ifeq ($(KBUILD_SRC),)
140 __c_flags       = $(_c_flags)
141 __a_flags       = $(_a_flags)
142 __cpp_flags     = $(_cpp_flags)
143 else
144
145 # -I$(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     =                          $(call flags,_cpp_flags)
152 endif
153
154 # Modified for U-Boot: LINUXINCLUDE -> UBOOTINCLUDE
155 c_flags        = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE)     \
156                  $(__c_flags) $(modkern_cflags)                           \
157                  -D"KBUILD_STR(s)=\#s" $(basename_flags) $(modname_flags)
158
159 a_flags        = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE)     \
160                  $(__a_flags) $(modkern_aflags)
161
162 cpp_flags      = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE)     \
163                  $(__cpp_flags)
164
165 ld_flags       = $(LDFLAGS) $(ldflags-y)
166
167 dts_dir = $(srctree)/arch/$(ARCH)/dts
168
169 # Try these files in order to find the U-Boot-specific .dtsi include file
170 u_boot_dtsi_options = $(wildcard $(dts_dir)/$(basename $(notdir $<))-u-boot.dtsi) \
171         $(wildcard $(dts_dir)/$(subst $\",,$(CONFIG_SYS_SOC))-u-boot.dtsi) \
172         $(wildcard $(dts_dir)/$(subst $\",,$(CONFIG_SYS_CPU))-u-boot.dtsi) \
173         $(wildcard $(dts_dir)/$(subst $\",,$(CONFIG_SYS_VENDOR))-u-boot.dtsi) \
174         $(wildcard $(dts_dir)/u-boot.dtsi)
175
176 # Uncomment for debugging
177 # $(warning u_boot_dtsi_options: $(u_boot_dtsi_options))
178
179 # We use the first match
180 u_boot_dtsi = $(firstword $(u_boot_dtsi_options))
181
182 # Modified for U-Boot
183 dtc_cpp_flags  = -Wp,-MD,$(depfile).pre.tmp -nostdinc                    \
184                  -I$(srctree)/arch/$(ARCH)/dts                           \
185                  -I$(srctree)/arch/$(ARCH)/dts/include                   \
186                  -Iinclude                                               \
187                  -I$(srctree)/include                                    \
188                  -I$(srctree)/arch/$(ARCH)/include                       \
189                  -include $(srctree)/include/linux/kconfig.h             \
190                  -D__ASSEMBLY__                                          \
191                  -undef -D__DTS__
192
193 # Finds the multi-part object the current object will be linked into
194 modname-multi = $(sort $(foreach m,$(multi-used),\
195                 $(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=))))
196
197 # Useful for describing the dependency of composite objects
198 # Usage:
199 #   $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add)
200 define multi_depend
201 $(foreach m, $(notdir $1), \
202         $(eval $(obj)/$m: \
203         $(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s)))))))
204 endef
205
206 ifdef REGENERATE_PARSERS
207
208 # GPERF
209 # ---------------------------------------------------------------------------
210 quiet_cmd_gperf = GPERF $@
211       cmd_gperf = gperf -t --output-file $@ -a -C -E -g -k 1,3,$$ -p -t $<
212
213 .PRECIOUS: $(src)/%.hash.c_shipped
214 $(src)/%.hash.c_shipped: $(src)/%.gperf
215         $(call cmd,gperf)
216
217 # LEX
218 # ---------------------------------------------------------------------------
219 LEX_PREFIX = $(if $(LEX_PREFIX_${baseprereq}),$(LEX_PREFIX_${baseprereq}),yy)
220
221 quiet_cmd_flex = LEX     $@
222       cmd_flex = flex -o$@ -L -P $(LEX_PREFIX) $<
223
224 .PRECIOUS: $(src)/%.lex.c_shipped
225 $(src)/%.lex.c_shipped: $(src)/%.l
226         $(call cmd,flex)
227
228 # YACC
229 # ---------------------------------------------------------------------------
230 YACC_PREFIX = $(if $(YACC_PREFIX_${baseprereq}),$(YACC_PREFIX_${baseprereq}),yy)
231
232 quiet_cmd_bison = YACC    $@
233       cmd_bison = bison -o$@ -t -l -p $(YACC_PREFIX) $<
234
235 .PRECIOUS: $(src)/%.tab.c_shipped
236 $(src)/%.tab.c_shipped: $(src)/%.y
237         $(call cmd,bison)
238
239 quiet_cmd_bison_h = YACC    $@
240       cmd_bison_h = bison -o/dev/null --defines=$@ -t -l -p $(YACC_PREFIX) $<
241
242 .PRECIOUS: $(src)/%.tab.h_shipped
243 $(src)/%.tab.h_shipped: $(src)/%.y
244         $(call cmd,bison_h)
245
246 endif
247
248 # Shipped files
249 # ===========================================================================
250
251 quiet_cmd_shipped = SHIPPED $@
252 cmd_shipped = cat $< > $@
253
254 $(obj)/%: $(src)/%_shipped
255         $(call cmd,shipped)
256
257 # Commands useful for building a boot image
258 # ===========================================================================
259 #
260 #       Use as following:
261 #
262 #       target: source(s) FORCE
263 #               $(if_changed,ld/objcopy/gzip)
264 #
265 #       and add target to extra-y so that we know we have to
266 #       read in the saved command line
267
268 # Linking
269 # ---------------------------------------------------------------------------
270
271 quiet_cmd_ld = LD      $@
272 cmd_ld = $(LD) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \
273                $(filter-out FORCE,$^) -o $@
274
275 # Objcopy
276 # ---------------------------------------------------------------------------
277
278 quiet_cmd_objcopy = OBJCOPY $@
279 cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
280
281 # Gzip
282 # ---------------------------------------------------------------------------
283
284 quiet_cmd_gzip = GZIP    $@
285 cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \
286         (rm -f $@ ; false)
287
288 # DTC
289 # ---------------------------------------------------------------------------
290
291 # Generate an assembly file to wrap the output of the device tree compiler
292 quiet_cmd_dt_S_dtb= DTB     $@
293 # Modified for U-Boot
294 cmd_dt_S_dtb=                                           \
295 (                                                       \
296         echo '.section .dtb.init.rodata,"a"';           \
297         echo '.balign 16';                              \
298         echo '.global __dtb_$(subst -,_,$(*F))_begin';  \
299         echo '__dtb_$(subst -,_,$(*F))_begin:';         \
300         echo '.incbin "$<" ';                           \
301         echo '__dtb_$(subst -,_,$(*F))_end:';           \
302         echo '.global __dtb_$(subst -,_,$(*F))_end';    \
303         echo '.balign 16';                              \
304 ) > $@
305
306 $(obj)/%.dtb.S: $(obj)/%.dtb
307         $(call cmd,dt_S_dtb)
308
309 quiet_cmd_dtc = DTC     $@
310 # Modified for U-Boot
311 # Bring in any U-Boot-specific include after the '/dts-v1/;' header
312 cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \
313         cat $< $(if $(u_boot_dtsi),\
314                 | sed '/^\/ {$$/{x;s%$$%\#include \"$(u_boot_dtsi)\"%;G;}') | \
315                 $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) - ; \
316         $(DTC) -O dtb -o $@ -b 0 \
317                 -i $(dir $<) $(DTC_FLAGS) \
318                 -d $(depfile).dtc.tmp $(dtc-tmp) ; \
319         cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
320
321 $(obj)/%.dtb: $(src)/%.dts FORCE
322         $(call if_changed_dep,dtc)
323
324 dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
325
326 # Fonts
327 # ---------------------------------------------------------------------------
328
329 # Generate an assembly file to wrap the font data
330 quiet_cmd_S_ttf= TTF     $@
331 # Modified for U-Boot
332 cmd_S_ttf=                                              \
333 (                                                       \
334         echo '.section .rodata.ttf.init,"a"';           \
335         echo '.balign 16';                              \
336         echo '.global __ttf_$(*F)_begin';               \
337         echo '__ttf_$(*F)_begin:';                      \
338         echo '.incbin "$<" ';                           \
339         echo '__ttf_$(*F)_end:';                        \
340         echo '.global __ttf_$(*F)_end';                 \
341         echo '.balign 16';                              \
342 ) > $@
343
344 $(obj)/%.S: $(src)/%.ttf
345         $(call cmd,S_ttf)
346
347 # EFI Hello World application
348 # ---------------------------------------------------------------------------
349
350 # Generate an assembly file to wrap the EFI app
351 cmd_S_efi=                                              \
352 (                                                       \
353         echo '.section .rodata.efi.init,"a"';           \
354         echo '.balign 16';                              \
355         echo '.global __efi_hello_world_begin';         \
356         echo '__efi_hello_world_begin:';                \
357         echo '.incbin "$<" ';                           \
358         echo '__efi_hello_world_end:';                  \
359         echo '.global __efi_hello_world_end';           \
360         echo '.balign 16';                              \
361 ) > $@
362
363 $(obj)/%_efi.S: $(obj)/%.efi
364         $(call cmd,S_efi)
365
366 quiet_cmd_efi_objcopy = OBJCOPY $@
367 cmd_efi_objcopy = $(OBJCOPY) -j .header -j .text -j .sdata -j .data -j \
368                 .dynamic -j .dynsym  -j .rel* -j .rela* -j .reloc \
369                 $(if $(EFI_TARGET),$(EFI_TARGET),-O binary) $^ $@
370
371 $(obj)/%.efi: $(obj)/%.so
372         $(call cmd,efi_objcopy)
373
374 quiet_cmd_efi_ld = LD      $@
375 cmd_efi_ld = $(LD) -nostdlib -znocombreloc -T $(EFI_LDS_PATH) -shared \
376                 -Bsymbolic $^ -o $@
377
378 EFI_LDS_PATH = $(srctree)/arch/$(ARCH)/lib/$(EFI_LDS)
379
380 $(obj)/helloworld.so: $(EFI_LDS_PATH)
381
382 $(obj)/helloworld.so: $(obj)/helloworld.o arch/$(ARCH)/lib/$(EFI_CRT0) \
383                 arch/$(ARCH)/lib/$(EFI_RELOC)
384         $(call cmd,efi_ld)
385
386 # ACPI
387 # ---------------------------------------------------------------------------
388 quiet_cmd_acpi_c_asl= ASL     $<
389 cmd_acpi_c_asl=         \
390         $(CPP) -x assembler-with-cpp -D__ASSEMBLY__ -P $(UBOOTINCLUDE) -o $<.tmp $<; \
391         iasl -p $< -tc $<.tmp $(if $(KBUILD_VERBOSE:1=), >/dev/null); \
392         mv $(patsubst %.asl,%.hex,$<) $@
393
394 $(obj)/dsdt.c:    $(src)/dsdt.asl
395         $(call cmd,acpi_c_asl)
396
397 # Bzip2
398 # ---------------------------------------------------------------------------
399
400 # Bzip2 and LZMA do not include size in file... so we have to fake that;
401 # append the size as a 32-bit littleendian number as gzip does.
402 size_append = printf $(shell                                            \
403 dec_size=0;                                                             \
404 for F in $1; do                                                         \
405         fsize=$$(stat -c "%s" $$F);                                     \
406         dec_size=$$(expr $$dec_size + $$fsize);                         \
407 done;                                                                   \
408 printf "%08x\n" $$dec_size |                                            \
409         sed 's/\(..\)/\1 /g' | {                                        \
410                 read ch0 ch1 ch2 ch3;                                   \
411                 for ch in $$ch3 $$ch2 $$ch1 $$ch0; do                   \
412                         printf '%s%03o' '\\' $$((0x$$ch));              \
413                 done;                                                   \
414         }                                                               \
415 )
416
417 quiet_cmd_bzip2 = BZIP2   $@
418 cmd_bzip2 = (cat $(filter-out FORCE,$^) | \
419         bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
420         (rm -f $@ ; false)
421
422 # Lzma
423 # ---------------------------------------------------------------------------
424
425 quiet_cmd_lzma = LZMA    $@
426 cmd_lzma = (cat $(filter-out FORCE,$^) | \
427         lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
428         (rm -f $@ ; false)
429
430 quiet_cmd_lzo = LZO     $@
431 cmd_lzo = (cat $(filter-out FORCE,$^) | \
432         lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
433         (rm -f $@ ; false)
434
435 quiet_cmd_lz4 = LZ4     $@
436 cmd_lz4 = (cat $(filter-out FORCE,$^) | \
437         lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
438         (rm -f $@ ; false)
439
440 # U-Boot mkimage
441 # ---------------------------------------------------------------------------
442
443 MKIMAGE := $(srctree)/scripts/mkuboot.sh
444
445 # SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces
446 # the number of overrides in arch makefiles
447 UIMAGE_ARCH ?= $(SRCARCH)
448 UIMAGE_COMPRESSION ?= $(if $(2),$(2),none)
449 UIMAGE_OPTS-y ?=
450 UIMAGE_TYPE ?= kernel
451 UIMAGE_LOADADDR ?= arch_must_set_this
452 UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR)
453 UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)'
454 UIMAGE_IN ?= $<
455 UIMAGE_OUT ?= $@
456
457 quiet_cmd_uimage = UIMAGE  $(UIMAGE_OUT)
458       cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \
459                         -C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \
460                         -T $(UIMAGE_TYPE) \
461                         -a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \
462                         -n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT)
463
464 # XZ
465 # ---------------------------------------------------------------------------
466 # Use xzkern to compress the kernel image and xzmisc to compress other things.
467 #
468 # xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage
469 # of the kernel decompressor. A BCJ filter is used if it is available for
470 # the target architecture. xzkern also appends uncompressed size of the data
471 # using size_append. The .xz format has the size information available at
472 # the end of the file too, but it's in more complex format and it's good to
473 # avoid changing the part of the boot code that reads the uncompressed size.
474 # Note that the bytes added by size_append will make the xz tool think that
475 # the file is corrupt. This is expected.
476 #
477 # xzmisc doesn't use size_append, so it can be used to create normal .xz
478 # files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very
479 # big dictionary would increase the memory usage too much in the multi-call
480 # decompression mode. A BCJ filter isn't used either.
481 quiet_cmd_xzkern = XZKERN  $@
482 cmd_xzkern = (cat $(filter-out FORCE,$^) | \
483         sh $(srctree)/scripts/xz_wrap.sh && \
484         $(call size_append, $(filter-out FORCE,$^))) > $@ || \
485         (rm -f $@ ; false)
486
487 quiet_cmd_xzmisc = XZMISC  $@
488 cmd_xzmisc = (cat $(filter-out FORCE,$^) | \
489         xz --check=crc32 --lzma2=dict=1MiB) > $@ || \
490         (rm -f $@ ; false)
491
492 # Additional commands for U-Boot
493 #
494 # mkimage
495 # ---------------------------------------------------------------------------
496 MKIMAGEOUTPUT ?= /dev/null
497 quiet_cmd_mkimage = MKIMAGE $@
498 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
499         $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT))