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Commit | Line | Data |
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f32c8649 TR |
1 | # |
2 | # SPDX-License-Identifier: GPL-2.0 | |
3 | # | |
22433fc5 MY |
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) | |
45f0ad95 | 33 | # o if we encounter foo/ in $(obj-m), remove it from $(obj-m) |
22433fc5 MY |
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 | ||
45f0ad95 | 52 | # if $(foo-objs) exists, foo.o is a composite object |
22433fc5 MY |
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 | |
45f0ad95 | 97 | # $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will |
22433fc5 MY |
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 | ||
026f9cf2 | 107 | orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \ |
22433fc5 MY |
108 | $(ccflags-y) $(CFLAGS_$(basetarget).o) |
109 | _c_flags = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags)) | |
3834f417 | 110 | orig_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \ |
22433fc5 | 111 | $(asflags-y) $(AFLAGS_$(basetarget).o) |
3834f417 | 112 | _a_flags = $(filter-out $(AFLAGS_REMOVE_$(basetarget).o), $(orig_a_flags)) |
026f9cf2 | 113 | _cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F)) |
22433fc5 MY |
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 | $(CFLAGS_GCOV)) | |
124 | endif | |
125 | ||
98bd0e0d MY |
126 | # |
127 | # Enable address sanitizer flags for kernel except some files or directories | |
128 | # we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE) | |
129 | # | |
130 | ifeq ($(CONFIG_KASAN),y) | |
131 | _c_flags += $(if $(patsubst n%,, \ | |
132 | $(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \ | |
133 | $(CFLAGS_KASAN)) | |
134 | endif | |
135 | ||
22433fc5 MY |
136 | # If building the kernel in a separate objtree expand all occurrences |
137 | # of -Idir to -I$(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 = $(call flags,_cpp_flags) | |
152 | endif | |
153 | ||
6825a95b MY |
154 | # Modified for U-Boot: LINUXINCLUDE -> UBOOTINCLUDE |
155 | c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \ | |
22433fc5 MY |
156 | $(__c_flags) $(modkern_cflags) \ |
157 | -D"KBUILD_STR(s)=\#s" $(basename_flags) $(modname_flags) | |
158 | ||
6825a95b | 159 | a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \ |
22433fc5 MY |
160 | $(__a_flags) $(modkern_aflags) |
161 | ||
6825a95b | 162 | cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(UBOOTINCLUDE) \ |
22433fc5 MY |
163 | $(__cpp_flags) |
164 | ||
165 | ld_flags = $(LDFLAGS) $(ldflags-y) | |
166 | ||
6ab6b2af | 167 | # Modified for U-Boot |
22433fc5 | 168 | dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \ |
6ab6b2af | 169 | -I$(srctree)/arch/$(ARCH)/dts \ |
5957ac2a | 170 | -I$(srctree)/arch/$(ARCH)/dts/include \ |
22433fc5 MY |
171 | -undef -D__DTS__ |
172 | ||
173 | # Finds the multi-part object the current object will be linked into | |
174 | modname-multi = $(sort $(foreach m,$(multi-used),\ | |
175 | $(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=)))) | |
176 | ||
cb6e7b0d MY |
177 | # Useful for describing the dependency of composite objects |
178 | # Usage: | |
179 | # $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add) | |
180 | define multi_depend | |
181 | $(foreach m, $(notdir $1), \ | |
182 | $(eval $(obj)/$m: \ | |
183 | $(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s))))))) | |
184 | endef | |
185 | ||
22433fc5 MY |
186 | ifdef REGENERATE_PARSERS |
187 | ||
188 | # GPERF | |
189 | # --------------------------------------------------------------------------- | |
190 | quiet_cmd_gperf = GPERF $@ | |
191 | cmd_gperf = gperf -t --output-file $@ -a -C -E -g -k 1,3,$$ -p -t $< | |
192 | ||
193 | .PRECIOUS: $(src)/%.hash.c_shipped | |
194 | $(src)/%.hash.c_shipped: $(src)/%.gperf | |
195 | $(call cmd,gperf) | |
196 | ||
197 | # LEX | |
198 | # --------------------------------------------------------------------------- | |
199 | LEX_PREFIX = $(if $(LEX_PREFIX_${baseprereq}),$(LEX_PREFIX_${baseprereq}),yy) | |
200 | ||
201 | quiet_cmd_flex = LEX $@ | |
202 | cmd_flex = flex -o$@ -L -P $(LEX_PREFIX) $< | |
203 | ||
204 | .PRECIOUS: $(src)/%.lex.c_shipped | |
205 | $(src)/%.lex.c_shipped: $(src)/%.l | |
206 | $(call cmd,flex) | |
207 | ||
208 | # YACC | |
209 | # --------------------------------------------------------------------------- | |
210 | YACC_PREFIX = $(if $(YACC_PREFIX_${baseprereq}),$(YACC_PREFIX_${baseprereq}),yy) | |
211 | ||
212 | quiet_cmd_bison = YACC $@ | |
213 | cmd_bison = bison -o$@ -t -l -p $(YACC_PREFIX) $< | |
214 | ||
215 | .PRECIOUS: $(src)/%.tab.c_shipped | |
216 | $(src)/%.tab.c_shipped: $(src)/%.y | |
217 | $(call cmd,bison) | |
218 | ||
219 | quiet_cmd_bison_h = YACC $@ | |
220 | cmd_bison_h = bison -o/dev/null --defines=$@ -t -l -p $(YACC_PREFIX) $< | |
221 | ||
222 | .PRECIOUS: $(src)/%.tab.h_shipped | |
223 | $(src)/%.tab.h_shipped: $(src)/%.y | |
224 | $(call cmd,bison_h) | |
225 | ||
226 | endif | |
227 | ||
228 | # Shipped files | |
229 | # =========================================================================== | |
230 | ||
231 | quiet_cmd_shipped = SHIPPED $@ | |
232 | cmd_shipped = cat $< > $@ | |
233 | ||
234 | $(obj)/%: $(src)/%_shipped | |
235 | $(call cmd,shipped) | |
236 | ||
237 | # Commands useful for building a boot image | |
238 | # =========================================================================== | |
45f0ad95 | 239 | # |
22433fc5 MY |
240 | # Use as following: |
241 | # | |
242 | # target: source(s) FORCE | |
243 | # $(if_changed,ld/objcopy/gzip) | |
244 | # | |
245 | # and add target to extra-y so that we know we have to | |
246 | # read in the saved command line | |
247 | ||
248 | # Linking | |
249 | # --------------------------------------------------------------------------- | |
250 | ||
251 | quiet_cmd_ld = LD $@ | |
252 | cmd_ld = $(LD) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \ | |
45f0ad95 | 253 | $(filter-out FORCE,$^) -o $@ |
22433fc5 MY |
254 | |
255 | # Objcopy | |
256 | # --------------------------------------------------------------------------- | |
257 | ||
258 | quiet_cmd_objcopy = OBJCOPY $@ | |
259 | cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ | |
260 | ||
261 | # Gzip | |
262 | # --------------------------------------------------------------------------- | |
263 | ||
264 | quiet_cmd_gzip = GZIP $@ | |
265 | cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \ | |
266 | (rm -f $@ ; false) | |
267 | ||
268 | # DTC | |
269 | # --------------------------------------------------------------------------- | |
270 | ||
271 | # Generate an assembly file to wrap the output of the device tree compiler | |
272 | quiet_cmd_dt_S_dtb= DTB $@ | |
6ab6b2af | 273 | # Modified for U-Boot |
22433fc5 MY |
274 | cmd_dt_S_dtb= \ |
275 | ( \ | |
22433fc5 | 276 | echo '.section .dtb.init.rodata,"a"'; \ |
5c30bf43 | 277 | echo '.balign 16'; \ |
716f9085 MR |
278 | echo '.global __dtb_$(subst -,_,$(*F))_begin'; \ |
279 | echo '__dtb_$(subst -,_,$(*F))_begin:'; \ | |
22433fc5 | 280 | echo '.incbin "$<" '; \ |
716f9085 MR |
281 | echo '__dtb_$(subst -,_,$(*F))_end:'; \ |
282 | echo '.global __dtb_$(subst -,_,$(*F))_end'; \ | |
5c30bf43 | 283 | echo '.balign 16'; \ |
22433fc5 MY |
284 | ) > $@ |
285 | ||
286 | $(obj)/%.dtb.S: $(obj)/%.dtb | |
287 | $(call cmd,dt_S_dtb) | |
288 | ||
289 | quiet_cmd_dtc = DTC $@ | |
6ab6b2af | 290 | # Modified for U-Boot |
98bd0e0d MY |
291 | cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \ |
292 | $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \ | |
c4aaf2e0 | 293 | $(DTC) -O dtb -o $@ -b 0 \ |
22433fc5 MY |
294 | -i $(dir $<) $(DTC_FLAGS) \ |
295 | -d $(depfile).dtc.tmp $(dtc-tmp) ; \ | |
296 | cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile) | |
297 | ||
298 | $(obj)/%.dtb: $(src)/%.dts FORCE | |
299 | $(call if_changed_dep,dtc) | |
300 | ||
301 | dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp) | |
302 | ||
30a1dcad SG |
303 | # Fonts |
304 | # --------------------------------------------------------------------------- | |
305 | ||
306 | # Generate an assembly file to wrap the font data | |
307 | quiet_cmd_S_ttf= TTF $@ | |
308 | # Modified for U-Boot | |
309 | cmd_S_ttf= \ | |
310 | ( \ | |
311 | echo '.section .rodata.ttf.init,"a"'; \ | |
312 | echo '.balign 16'; \ | |
313 | echo '.global __ttf_$(*F)_begin'; \ | |
314 | echo '__ttf_$(*F)_begin:'; \ | |
315 | echo '.incbin "$<" '; \ | |
316 | echo '__ttf_$(*F)_end:'; \ | |
317 | echo '.global __ttf_$(*F)_end'; \ | |
318 | echo '.balign 16'; \ | |
319 | ) > $@ | |
320 | ||
321 | $(obj)/%.S: $(src)/%.ttf | |
322 | $(call cmd,S_ttf) | |
323 | ||
c7ae3dfd SG |
324 | # EFI Hello World application |
325 | # --------------------------------------------------------------------------- | |
326 | ||
327 | # Generate an assembly file to wrap the EFI app | |
328 | cmd_S_efi= \ | |
329 | ( \ | |
330 | echo '.section .rodata.efi.init,"a"'; \ | |
331 | echo '.balign 16'; \ | |
332 | echo '.global __efi_hello_world_begin'; \ | |
333 | echo '__efi_hello_world_begin:'; \ | |
334 | echo '.incbin "$<" '; \ | |
335 | echo '__efi_hello_world_end:'; \ | |
336 | echo '.global __efi_hello_world_end'; \ | |
337 | echo '.balign 16'; \ | |
338 | ) > $@ | |
339 | ||
340 | $(obj)/%_efi.S: $(obj)/%.efi | |
341 | $(call cmd,S_efi) | |
342 | ||
343 | $(obj)/%.efi: $(obj)/%.so | |
344 | $(OBJCOPY) -j .header -j .text -j .sdata -j .data -j .dynamic \ | |
345 | -j .dynsym -j .rel* -j .rela* -j .reloc \ | |
346 | $(if $(EFI_TARGET),$(EFI_TARGET),-O binary) $^ $@ | |
347 | ||
348 | EFI_LDS_PATH = $(srctree)/arch/$(ARCH)/lib/$(EFI_LDS) | |
349 | ||
350 | $(obj)/helloworld.so: $(EFI_LDS_PATH) | |
351 | ||
352 | $(obj)/helloworld.so: $(obj)/helloworld.o arch/$(ARCH)/lib/$(EFI_CRT0) \ | |
353 | arch/$(ARCH)/lib/$(EFI_RELOC) | |
354 | $(LD) -nostdlib -znocombreloc -T $(EFI_LDS_PATH) -shared -Bsymbolic \ | |
355 | $^ -o $@ | |
356 | ||
867bcb63 SS |
357 | # ACPI |
358 | # --------------------------------------------------------------------------- | |
68af8d88 | 359 | quiet_cmd_acpi_c_asl= ASL $< |
867bcb63 | 360 | cmd_acpi_c_asl= \ |
6683584c | 361 | $(CPP) -x assembler-with-cpp -D__ASSEMBLY__ -P $(UBOOTINCLUDE) -o $<.tmp $<; \ |
bb68dd52 | 362 | iasl -p $< -tc $<.tmp $(if $(KBUILD_VERBOSE:1=), >/dev/null); \ |
867bcb63 SS |
363 | mv $(patsubst %.asl,%.hex,$<) $@ |
364 | ||
3a2a3d0b | 365 | $(obj)/dsdt.c: $(src)/dsdt.asl |
867bcb63 SS |
366 | $(call cmd,acpi_c_asl) |
367 | ||
22433fc5 MY |
368 | # Bzip2 |
369 | # --------------------------------------------------------------------------- | |
370 | ||
371 | # Bzip2 and LZMA do not include size in file... so we have to fake that; | |
372 | # append the size as a 32-bit littleendian number as gzip does. | |
373 | size_append = printf $(shell \ | |
374 | dec_size=0; \ | |
375 | for F in $1; do \ | |
376 | fsize=$$(stat -c "%s" $$F); \ | |
377 | dec_size=$$(expr $$dec_size + $$fsize); \ | |
378 | done; \ | |
379 | printf "%08x\n" $$dec_size | \ | |
380 | sed 's/\(..\)/\1 /g' | { \ | |
381 | read ch0 ch1 ch2 ch3; \ | |
382 | for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \ | |
383 | printf '%s%03o' '\\' $$((0x$$ch)); \ | |
384 | done; \ | |
385 | } \ | |
386 | ) | |
387 | ||
388 | quiet_cmd_bzip2 = BZIP2 $@ | |
389 | cmd_bzip2 = (cat $(filter-out FORCE,$^) | \ | |
390 | bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ | |
391 | (rm -f $@ ; false) | |
392 | ||
393 | # Lzma | |
394 | # --------------------------------------------------------------------------- | |
395 | ||
396 | quiet_cmd_lzma = LZMA $@ | |
397 | cmd_lzma = (cat $(filter-out FORCE,$^) | \ | |
398 | lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ | |
399 | (rm -f $@ ; false) | |
400 | ||
401 | quiet_cmd_lzo = LZO $@ | |
402 | cmd_lzo = (cat $(filter-out FORCE,$^) | \ | |
403 | lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ | |
404 | (rm -f $@ ; false) | |
405 | ||
406 | quiet_cmd_lz4 = LZ4 $@ | |
407 | cmd_lz4 = (cat $(filter-out FORCE,$^) | \ | |
408 | lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ | |
409 | (rm -f $@ ; false) | |
410 | ||
411 | # U-Boot mkimage | |
412 | # --------------------------------------------------------------------------- | |
413 | ||
414 | MKIMAGE := $(srctree)/scripts/mkuboot.sh | |
415 | ||
416 | # SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces | |
417 | # the number of overrides in arch makefiles | |
418 | UIMAGE_ARCH ?= $(SRCARCH) | |
419 | UIMAGE_COMPRESSION ?= $(if $(2),$(2),none) | |
420 | UIMAGE_OPTS-y ?= | |
421 | UIMAGE_TYPE ?= kernel | |
422 | UIMAGE_LOADADDR ?= arch_must_set_this | |
423 | UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR) | |
424 | UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)' | |
425 | UIMAGE_IN ?= $< | |
426 | UIMAGE_OUT ?= $@ | |
427 | ||
428 | quiet_cmd_uimage = UIMAGE $(UIMAGE_OUT) | |
429 | cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \ | |
430 | -C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \ | |
431 | -T $(UIMAGE_TYPE) \ | |
432 | -a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \ | |
433 | -n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT) | |
434 | ||
435 | # XZ | |
436 | # --------------------------------------------------------------------------- | |
437 | # Use xzkern to compress the kernel image and xzmisc to compress other things. | |
438 | # | |
439 | # xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage | |
440 | # of the kernel decompressor. A BCJ filter is used if it is available for | |
441 | # the target architecture. xzkern also appends uncompressed size of the data | |
442 | # using size_append. The .xz format has the size information available at | |
443 | # the end of the file too, but it's in more complex format and it's good to | |
444 | # avoid changing the part of the boot code that reads the uncompressed size. | |
445 | # Note that the bytes added by size_append will make the xz tool think that | |
446 | # the file is corrupt. This is expected. | |
447 | # | |
448 | # xzmisc doesn't use size_append, so it can be used to create normal .xz | |
449 | # files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very | |
450 | # big dictionary would increase the memory usage too much in the multi-call | |
451 | # decompression mode. A BCJ filter isn't used either. | |
452 | quiet_cmd_xzkern = XZKERN $@ | |
453 | cmd_xzkern = (cat $(filter-out FORCE,$^) | \ | |
454 | sh $(srctree)/scripts/xz_wrap.sh && \ | |
455 | $(call size_append, $(filter-out FORCE,$^))) > $@ || \ | |
456 | (rm -f $@ ; false) | |
457 | ||
458 | quiet_cmd_xzmisc = XZMISC $@ | |
459 | cmd_xzmisc = (cat $(filter-out FORCE,$^) | \ | |
460 | xz --check=crc32 --lzma2=dict=1MiB) > $@ || \ | |
461 | (rm -f $@ ; false) | |
ba8dd775 MY |
462 | |
463 | # Additional commands for U-Boot | |
464 | # | |
465 | # mkimage | |
466 | # --------------------------------------------------------------------------- | |
467 | quiet_cmd_mkimage = MKIMAGE $@ | |
468 | cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ | |
469 | $(if $(KBUILD_VERBOSE:1=), >/dev/null) |