Commit | Line | Data |
---|---|---|
f77bf014 SR |
1 | # Backward compatibility |
2 | asflags-y += $(EXTRA_AFLAGS) | |
3 | ccflags-y += $(EXTRA_CFLAGS) | |
4 | cppflags-y += $(EXTRA_CPPFLAGS) | |
5 | ldflags-y += $(EXTRA_LDFLAGS) | |
6 | ||
8fdc3fbb | 7 | # flags that take effect in current and sub directories |
720097d8 SR |
8 | export KBUILD_SUBDIR_ASFLAGS := $(KBUILD_SUBDIR_ASFLAGS) $(subdir-asflags-y) |
9 | export KBUILD_SUBDIR_CCFLAGS := $(KBUILD_SUBDIR_CCFLAGS) $(subdir-ccflags-y) | |
10 | ||
1da177e4 LT |
11 | # Figure out what we need to build from the various variables |
12 | # =========================================================================== | |
13 | ||
14 | # When an object is listed to be built compiled-in and modular, | |
15 | # only build the compiled-in version | |
1da177e4 LT |
16 | obj-m := $(filter-out $(obj-y),$(obj-m)) |
17 | ||
18 | # Libraries are always collected in one lib file. | |
19 | # Filter out objects already built-in | |
1da177e4 LT |
20 | lib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m))) |
21 | ||
8fdc3fbb C |
22 | # Determine modorder. |
23 | # Unfortunately, we don't have information about ordering between -y | |
24 | # and -m subdirs. Just put -y's first. | |
25 | modorder := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko)) | |
1da177e4 LT |
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) | |
38385f8f | 31 | # o if we encounter foo/ in $(obj-m), remove it from $(obj-m) |
1da177e4 | 32 | # and add the directory to the list of dirs to descend into: $(subdir-m) |
1da177e4 LT |
33 | __subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y))) |
34 | subdir-y += $(__subdir-y) | |
35 | __subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m))) | |
36 | subdir-m += $(__subdir-m) | |
37 | obj-y := $(patsubst %/, %/built-in.o, $(obj-y)) | |
38 | obj-m := $(filter-out %/, $(obj-m)) | |
39 | ||
40 | # Subdirectories we need to descend into | |
1da177e4 LT |
41 | subdir-ym := $(sort $(subdir-y) $(subdir-m)) |
42 | ||
8fdc3fbb | 43 | # if $(foo-objs), $(foo-y), or $(foo-m) exists, foo.o is a composite object |
1da177e4 | 44 | multi-used-y := $(sort $(foreach m,$(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m)))) |
cf4f2193 | 45 | multi-used-m := $(sort $(foreach m,$(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m))), $(m)))) |
1da177e4 LT |
46 | multi-used := $(multi-used-y) $(multi-used-m) |
47 | single-used-m := $(sort $(filter-out $(multi-used-m),$(obj-m))) | |
48 | ||
49 | # Build list of the parts of our composite objects, our composite | |
50 | # objects depend on those (obviously) | |
51 | multi-objs-y := $(foreach m, $(multi-used-y), $($(m:.o=-objs)) $($(m:.o=-y))) | |
52 | multi-objs-m := $(foreach m, $(multi-used-m), $($(m:.o=-objs)) $($(m:.o=-y))) | |
53 | multi-objs := $(multi-objs-y) $(multi-objs-m) | |
54 | ||
f5fb9765 SR |
55 | # $(subdir-obj-y) is the list of objects in $(obj-y) which uses dir/ to |
56 | # tell kbuild to descend | |
57 | subdir-obj-y := $(filter %/built-in.o, $(obj-y)) | |
1da177e4 LT |
58 | |
59 | # $(obj-dirs) is a list of directories that contain object files | |
4d47dde4 | 60 | obj-dirs := $(dir $(multi-objs) $(obj-y)) |
1da177e4 LT |
61 | |
62 | # Replace multi-part objects by their individual parts, look at local dir only | |
63 | 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) | |
cf4f2193 | 64 | real-objs-m := $(foreach m, $(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m))),$($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m)),$(m))) |
1da177e4 LT |
65 | |
66 | # Add subdir path | |
67 | ||
68 | extra-y := $(addprefix $(obj)/,$(extra-y)) | |
69 | always := $(addprefix $(obj)/,$(always)) | |
70 | targets := $(addprefix $(obj)/,$(targets)) | |
551559e1 | 71 | modorder := $(addprefix $(obj)/,$(modorder)) |
1da177e4 LT |
72 | obj-y := $(addprefix $(obj)/,$(obj-y)) |
73 | obj-m := $(addprefix $(obj)/,$(obj-m)) | |
74 | lib-y := $(addprefix $(obj)/,$(lib-y)) | |
75 | subdir-obj-y := $(addprefix $(obj)/,$(subdir-obj-y)) | |
76 | real-objs-y := $(addprefix $(obj)/,$(real-objs-y)) | |
77 | real-objs-m := $(addprefix $(obj)/,$(real-objs-m)) | |
78 | single-used-m := $(addprefix $(obj)/,$(single-used-m)) | |
79 | multi-used-y := $(addprefix $(obj)/,$(multi-used-y)) | |
80 | multi-used-m := $(addprefix $(obj)/,$(multi-used-m)) | |
81 | multi-objs-y := $(addprefix $(obj)/,$(multi-objs-y)) | |
82 | multi-objs-m := $(addprefix $(obj)/,$(multi-objs-m)) | |
83 | subdir-ym := $(addprefix $(obj)/,$(subdir-ym)) | |
84 | obj-dirs := $(addprefix $(obj)/,$(obj-dirs)) | |
85 | ||
1da177e4 | 86 | # These flags are needed for modversions and compiling, so we define them here |
8fdc3fbb | 87 | # $(modname_flags) defines KBUILD_MODNAME as the name of the module it will |
1da177e4 | 88 | # end up in (or would, if it gets compiled in) |
5bb0571b MM |
89 | # Note: Files that end up in two or more modules are compiled without the |
90 | # KBUILD_MODNAME definition. The reason is that any made-up name would | |
91 | # differ in different configs. | |
b42841b7 MM |
92 | name-fix = $(squote)$(quote)$(subst $(comma),_,$(subst -,_,$1))$(quote)$(squote) |
93 | basename_flags = -DKBUILD_BASENAME=$(call name-fix,$(basetarget)) | |
f83b5e32 | 94 | modname_flags = $(if $(filter 1,$(words $(modname))),\ |
b42841b7 | 95 | -DKBUILD_MODNAME=$(call name-fix,$(modname))) |
1da177e4 | 96 | |
720097d8 | 97 | orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \ |
d8672b40 | 98 | $(ccflags-y) $(CFLAGS_$(basetarget).o) |
656ee82c | 99 | _c_flags = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags)) |
a7e137eb | 100 | orig_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \ |
d8672b40 | 101 | $(asflags-y) $(AFLAGS_$(basetarget).o) |
a7e137eb | 102 | _a_flags = $(filter-out $(AFLAGS_REMOVE_$(basetarget).o), $(orig_a_flags)) |
f77bf014 | 103 | _cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F)) |
1da177e4 | 104 | |
2521f2c2 PO |
105 | # |
106 | # Enable gcov profiling flags for a file, directory or for all files depending | |
107 | # on variables GCOV_PROFILE_obj.o, GCOV_PROFILE and CONFIG_GCOV_PROFILE_ALL | |
108 | # (in this order) | |
109 | # | |
110 | ifeq ($(CONFIG_GCOV_KERNEL),y) | |
111 | _c_flags += $(if $(patsubst n%,, \ | |
112 | $(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \ | |
113 | $(CFLAGS_GCOV)) | |
114 | endif | |
115 | ||
0b24becc AR |
116 | # |
117 | # Enable address sanitizer flags for kernel except some files or directories | |
118 | # we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE) | |
119 | # | |
120 | ifeq ($(CONFIG_KASAN),y) | |
121 | _c_flags += $(if $(patsubst n%,, \ | |
122 | $(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \ | |
123 | $(CFLAGS_KASAN)) | |
124 | endif | |
125 | ||
c6d30853 AR |
126 | ifeq ($(CONFIG_UBSAN),y) |
127 | _c_flags += $(if $(patsubst n%,, \ | |
128 | $(UBSAN_SANITIZE_$(basetarget).o)$(UBSAN_SANITIZE)$(CONFIG_UBSAN_SANITIZE_ALL)), \ | |
129 | $(CFLAGS_UBSAN)) | |
130 | endif | |
131 | ||
5c9a8750 DV |
132 | ifeq ($(CONFIG_KCOV),y) |
133 | _c_flags += $(if $(patsubst n%,, \ | |
a4691dea | 134 | $(KCOV_INSTRUMENT_$(basetarget).o)$(KCOV_INSTRUMENT)$(CONFIG_KCOV_INSTRUMENT_ALL)), \ |
5c9a8750 DV |
135 | $(CFLAGS_KCOV)) |
136 | endif | |
137 | ||
1da177e4 LT |
138 | # If building the kernel in a separate objtree expand all occurrences |
139 | # of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/'). | |
140 | ||
141 | ifeq ($(KBUILD_SRC),) | |
142 | __c_flags = $(_c_flags) | |
143 | __a_flags = $(_a_flags) | |
144 | __cpp_flags = $(_cpp_flags) | |
145 | else | |
146 | ||
1da177e4 LT |
147 | # -I$(obj) locates generated .h files |
148 | # $(call addtree,-I$(obj)) locates .h files in srctree, from generated .c files | |
149 | # and locates generated .h files | |
150 | # FIXME: Replace both with specific CFLAGS* statements in the makefiles | |
4607ebf0 | 151 | __c_flags = $(if $(obj),$(call addtree,-I$(src)) -I$(obj)) \ |
db547ef1 AB |
152 | $(call flags,_c_flags) |
153 | __a_flags = $(call flags,_a_flags) | |
154 | __cpp_flags = $(call flags,_cpp_flags) | |
1da177e4 LT |
155 | endif |
156 | ||
d8672b40 SR |
157 | c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \ |
158 | $(__c_flags) $(modkern_cflags) \ | |
b42841b7 | 159 | $(basename_flags) $(modname_flags) |
1da177e4 | 160 | |
d8672b40 | 161 | a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \ |
1da177e4 LT |
162 | $(__a_flags) $(modkern_aflags) |
163 | ||
d8672b40 SR |
164 | cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \ |
165 | $(__cpp_flags) | |
1da177e4 | 166 | |
f77bf014 | 167 | ld_flags = $(LDFLAGS) $(ldflags-y) |
1da177e4 | 168 | |
50f9ddaf MY |
169 | DTC_INCLUDE := $(srctree)/scripts/dtc/include-prefixes |
170 | ||
b0a4d8b3 | 171 | dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \ |
50f9ddaf | 172 | $(addprefix -I,$(DTC_INCLUDE)) \ |
e570d7c1 SW |
173 | -undef -D__DTS__ |
174 | ||
1da177e4 LT |
175 | # Finds the multi-part object the current object will be linked into |
176 | modname-multi = $(sort $(foreach m,$(multi-used),\ | |
177 | $(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=)))) | |
178 | ||
c8589d1e MY |
179 | # Useful for describing the dependency of composite objects |
180 | # Usage: | |
181 | # $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add) | |
182 | define multi_depend | |
183 | $(foreach m, $(notdir $1), \ | |
184 | $(eval $(obj)/$m: \ | |
185 | $(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s))))))) | |
186 | endef | |
187 | ||
7373f4f8 AL |
188 | ifdef REGENERATE_PARSERS |
189 | ||
7373f4f8 AL |
190 | # LEX |
191 | # --------------------------------------------------------------------------- | |
192 | LEX_PREFIX = $(if $(LEX_PREFIX_${baseprereq}),$(LEX_PREFIX_${baseprereq}),yy) | |
193 | ||
194 | quiet_cmd_flex = LEX $@ | |
195 | cmd_flex = flex -o$@ -L -P $(LEX_PREFIX) $< | |
196 | ||
58238c81 | 197 | .PRECIOUS: $(src)/%.lex.c_shipped |
7373f4f8 AL |
198 | $(src)/%.lex.c_shipped: $(src)/%.l |
199 | $(call cmd,flex) | |
200 | ||
201 | # YACC | |
202 | # --------------------------------------------------------------------------- | |
203 | YACC_PREFIX = $(if $(YACC_PREFIX_${baseprereq}),$(YACC_PREFIX_${baseprereq}),yy) | |
204 | ||
205 | quiet_cmd_bison = YACC $@ | |
206 | cmd_bison = bison -o$@ -t -l -p $(YACC_PREFIX) $< | |
207 | ||
58238c81 | 208 | .PRECIOUS: $(src)/%.tab.c_shipped |
7373f4f8 AL |
209 | $(src)/%.tab.c_shipped: $(src)/%.y |
210 | $(call cmd,bison) | |
211 | ||
212 | quiet_cmd_bison_h = YACC $@ | |
213 | cmd_bison_h = bison -o/dev/null --defines=$@ -t -l -p $(YACC_PREFIX) $< | |
214 | ||
58238c81 | 215 | .PRECIOUS: $(src)/%.tab.h_shipped |
7373f4f8 AL |
216 | $(src)/%.tab.h_shipped: $(src)/%.y |
217 | $(call cmd,bison_h) | |
218 | ||
219 | endif | |
220 | ||
1da177e4 LT |
221 | # Shipped files |
222 | # =========================================================================== | |
223 | ||
224 | quiet_cmd_shipped = SHIPPED $@ | |
225 | cmd_shipped = cat $< > $@ | |
226 | ||
991d76c9 | 227 | $(obj)/%: $(src)/%_shipped |
1da177e4 LT |
228 | $(call cmd,shipped) |
229 | ||
230 | # Commands useful for building a boot image | |
231 | # =========================================================================== | |
38385f8f | 232 | # |
1da177e4 LT |
233 | # Use as following: |
234 | # | |
235 | # target: source(s) FORCE | |
236 | # $(if_changed,ld/objcopy/gzip) | |
237 | # | |
836caba7 | 238 | # and add target to extra-y so that we know we have to |
1da177e4 LT |
239 | # read in the saved command line |
240 | ||
241 | # Linking | |
242 | # --------------------------------------------------------------------------- | |
243 | ||
244 | quiet_cmd_ld = LD $@ | |
f77bf014 | 245 | cmd_ld = $(LD) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \ |
38385f8f | 246 | $(filter-out FORCE,$^) -o $@ |
1da177e4 LT |
247 | |
248 | # Objcopy | |
249 | # --------------------------------------------------------------------------- | |
250 | ||
251 | quiet_cmd_objcopy = OBJCOPY $@ | |
252 | cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ | |
253 | ||
254 | # Gzip | |
255 | # --------------------------------------------------------------------------- | |
256 | ||
257 | quiet_cmd_gzip = GZIP $@ | |
6ae9ecb8 | 258 | cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \ |
d3dd3b5a | 259 | (rm -f $@ ; false) |
1da177e4 | 260 | |
aab94339 DB |
261 | # DTC |
262 | # --------------------------------------------------------------------------- | |
6b22b3d1 | 263 | DTC ?= $(objtree)/scripts/dtc/dtc |
aab94339 | 264 | |
bc553986 RH |
265 | # Disable noisy checks by default |
266 | ifeq ($(KBUILD_ENABLE_EXTRA_GCC_CHECKS),) | |
8654cb8d RH |
267 | DTC_FLAGS += -Wno-unit_address_vs_reg \ |
268 | -Wno-simple_bus_reg \ | |
269 | -Wno-unit_address_format \ | |
270 | -Wno-pci_bridge \ | |
271 | -Wno-pci_device_bus_num \ | |
272 | -Wno-pci_device_reg | |
bc553986 RH |
273 | endif |
274 | ||
8654cb8d RH |
275 | ifeq ($(KBUILD_ENABLE_EXTRA_GCC_CHECKS),2) |
276 | DTC_FLAGS += -Wnode_name_chars_strict \ | |
277 | -Wproperty_name_chars_strict | |
bc553986 RH |
278 | endif |
279 | ||
331f7416 FR |
280 | DTC_FLAGS += $(DTC_FLAGS_$(basetarget)) |
281 | ||
aab94339 | 282 | # Generate an assembly file to wrap the output of the device tree compiler |
1c00a47e | 283 | quiet_cmd_dt_S_dtb= DTB $@ |
aab94339 DB |
284 | cmd_dt_S_dtb= \ |
285 | ( \ | |
286 | echo '\#include <asm-generic/vmlinux.lds.h>'; \ | |
287 | echo '.section .dtb.init.rodata,"a"'; \ | |
288 | echo '.balign STRUCT_ALIGNMENT'; \ | |
289 | echo '.global __dtb_$(*F)_begin'; \ | |
290 | echo '__dtb_$(*F)_begin:'; \ | |
291 | echo '.incbin "$<" '; \ | |
292 | echo '__dtb_$(*F)_end:'; \ | |
293 | echo '.global __dtb_$(*F)_end'; \ | |
294 | echo '.balign STRUCT_ALIGNMENT'; \ | |
295 | ) > $@ | |
296 | ||
297 | $(obj)/%.dtb.S: $(obj)/%.dtb | |
298 | $(call cmd,dt_S_dtb) | |
299 | ||
300 | quiet_cmd_dtc = DTC $@ | |
77479b38 NR |
301 | cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \ |
302 | $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \ | |
6b22b3d1 | 303 | $(DTC) -O dtb -o $@ -b 0 \ |
50f9ddaf | 304 | $(addprefix -i,$(dir $<) $(DTC_INCLUDE)) $(DTC_FLAGS) \ |
b0a4d8b3 IC |
305 | -d $(depfile).dtc.tmp $(dtc-tmp) ; \ |
306 | cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile) | |
1da177e4 | 307 | |
90b335fb SW |
308 | $(obj)/%.dtb: $(src)/%.dts FORCE |
309 | $(call if_changed_dep,dtc) | |
310 | ||
b0a4d8b3 | 311 | dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp) |
22435f38 | 312 | |
bc22c17e AK |
313 | # Bzip2 |
314 | # --------------------------------------------------------------------------- | |
315 | ||
d3dd3b5a PA |
316 | # Bzip2 and LZMA do not include size in file... so we have to fake that; |
317 | # append the size as a 32-bit littleendian number as gzip does. | |
4a2ff67c | 318 | size_append = printf $(shell \ |
d3dd3b5a PA |
319 | dec_size=0; \ |
320 | for F in $1; do \ | |
321 | fsize=$$(stat -c "%s" $$F); \ | |
322 | dec_size=$$(expr $$dec_size + $$fsize); \ | |
323 | done; \ | |
1373411a JN |
324 | printf "%08x\n" $$dec_size | \ |
325 | sed 's/\(..\)/\1 /g' | { \ | |
326 | read ch0 ch1 ch2 ch3; \ | |
327 | for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \ | |
328 | printf '%s%03o' '\\' $$((0x$$ch)); \ | |
329 | done; \ | |
330 | } \ | |
d3dd3b5a PA |
331 | ) |
332 | ||
333 | quiet_cmd_bzip2 = BZIP2 $@ | |
334 | cmd_bzip2 = (cat $(filter-out FORCE,$^) | \ | |
335 | bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ | |
336 | (rm -f $@ ; false) | |
bc22c17e AK |
337 | |
338 | # Lzma | |
339 | # --------------------------------------------------------------------------- | |
340 | ||
341 | quiet_cmd_lzma = LZMA $@ | |
d3dd3b5a PA |
342 | cmd_lzma = (cat $(filter-out FORCE,$^) | \ |
343 | lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ | |
344 | (rm -f $@ ; false) | |
7dd65feb | 345 | |
2d74b2c6 | 346 | quiet_cmd_lzo = LZO $@ |
7dd65feb AT |
347 | cmd_lzo = (cat $(filter-out FORCE,$^) | \ |
348 | lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ | |
349 | (rm -f $@ ; false) | |
d61931d8 | 350 | |
e76e1fdf KL |
351 | quiet_cmd_lz4 = LZ4 $@ |
352 | cmd_lz4 = (cat $(filter-out FORCE,$^) | \ | |
353 | lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ | |
354 | (rm -f $@ ; false) | |
355 | ||
e3393645 SW |
356 | # U-Boot mkimage |
357 | # --------------------------------------------------------------------------- | |
358 | ||
359 | MKIMAGE := $(srctree)/scripts/mkuboot.sh | |
360 | ||
361 | # SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces | |
362 | # the number of overrides in arch makefiles | |
363 | UIMAGE_ARCH ?= $(SRCARCH) | |
364 | UIMAGE_COMPRESSION ?= $(if $(2),$(2),none) | |
365 | UIMAGE_OPTS-y ?= | |
366 | UIMAGE_TYPE ?= kernel | |
367 | UIMAGE_LOADADDR ?= arch_must_set_this | |
368 | UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR) | |
369 | UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)' | |
370 | UIMAGE_IN ?= $< | |
371 | UIMAGE_OUT ?= $@ | |
372 | ||
373 | quiet_cmd_uimage = UIMAGE $(UIMAGE_OUT) | |
374 | cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \ | |
375 | -C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \ | |
376 | -T $(UIMAGE_TYPE) \ | |
377 | -a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \ | |
378 | -n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT) | |
379 | ||
24fa0402 LC |
380 | # XZ |
381 | # --------------------------------------------------------------------------- | |
382 | # Use xzkern to compress the kernel image and xzmisc to compress other things. | |
383 | # | |
384 | # xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage | |
385 | # of the kernel decompressor. A BCJ filter is used if it is available for | |
386 | # the target architecture. xzkern also appends uncompressed size of the data | |
387 | # using size_append. The .xz format has the size information available at | |
388 | # the end of the file too, but it's in more complex format and it's good to | |
389 | # avoid changing the part of the boot code that reads the uncompressed size. | |
390 | # Note that the bytes added by size_append will make the xz tool think that | |
391 | # the file is corrupt. This is expected. | |
392 | # | |
393 | # xzmisc doesn't use size_append, so it can be used to create normal .xz | |
394 | # files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very | |
395 | # big dictionary would increase the memory usage too much in the multi-call | |
396 | # decompression mode. A BCJ filter isn't used either. | |
397 | quiet_cmd_xzkern = XZKERN $@ | |
398 | cmd_xzkern = (cat $(filter-out FORCE,$^) | \ | |
399 | sh $(srctree)/scripts/xz_wrap.sh && \ | |
400 | $(call size_append, $(filter-out FORCE,$^))) > $@ || \ | |
401 | (rm -f $@ ; false) | |
402 | ||
403 | quiet_cmd_xzmisc = XZMISC $@ | |
404 | cmd_xzmisc = (cat $(filter-out FORCE,$^) | \ | |
405 | xz --check=crc32 --lzma2=dict=1MiB) > $@ || \ | |
406 | (rm -f $@ ; false) | |
ebf003f0 MK |
407 | |
408 | # ASM offsets | |
409 | # --------------------------------------------------------------------------- | |
410 | ||
411 | # Default sed regexp - multiline due to syntax constraints | |
cf0c3e68 JH |
412 | # |
413 | # Use [:space:] because LLVM's integrated assembler inserts <tab> around | |
414 | # the .ascii directive whereas GCC keeps the <space> as-is. | |
ebf003f0 | 415 | define sed-offsets |
cf0c3e68 JH |
416 | 's:^[[:space:]]*\.ascii[[:space:]]*"\(.*\)".*:\1:; \ |
417 | /^->/{s:->#\(.*\):/* \1 */:; \ | |
ebf003f0 | 418 | s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ |
cf0c3e68 | 419 | s:->::; p;}' |
ebf003f0 MK |
420 | endef |
421 | ||
422 | # Use filechk to avoid rebuilds when a header changes, but the resulting file | |
423 | # does not | |
424 | define filechk_offsets | |
425 | (set -e; \ | |
426 | echo "#ifndef $2"; \ | |
427 | echo "#define $2"; \ | |
428 | echo "/*"; \ | |
429 | echo " * DO NOT MODIFY."; \ | |
430 | echo " *"; \ | |
431 | echo " * This file was generated by Kbuild"; \ | |
432 | echo " */"; \ | |
433 | echo ""; \ | |
434 | sed -ne $(sed-offsets); \ | |
435 | echo ""; \ | |
436 | echo "#endif" ) | |
437 | endef |