Blame view
scripts/Makefile.lib
15.4 KB
b24413180 License cleanup: ... |
1 |
# SPDX-License-Identifier: GPL-2.0 |
f77bf0142 kbuild: introduce... |
2 3 4 5 6 |
# Backward compatibility asflags-y += $(EXTRA_AFLAGS) ccflags-y += $(EXTRA_CFLAGS) cppflags-y += $(EXTRA_CPPFLAGS) ldflags-y += $(EXTRA_LDFLAGS) |
720097d89 kbuild: introduce... |
7 8 9 10 |
# # flags that take effect in sub directories export KBUILD_SUBDIR_ASFLAGS := $(KBUILD_SUBDIR_ASFLAGS) $(subdir-asflags-y) export KBUILD_SUBDIR_CCFLAGS := $(KBUILD_SUBDIR_CCFLAGS) $(subdir-ccflags-y) |
1da177e4c Linux-2.6.12-rc2 |
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 |
# Figure out what we need to build from the various variables # =========================================================================== # When an object is listed to be built compiled-in and modular, # only build the compiled-in version obj-m := $(filter-out $(obj-y),$(obj-m)) # Libraries are always collected in one lib file. # Filter out objects already built-in lib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m))) # Handle objects in subdirs # --------------------------------------------------------------------------- # o if we encounter foo/ in $(obj-y), replace it by foo/built-in.o # and add the directory to the list of dirs to descend into: $(subdir-y) |
38385f8f0 kbuild: trivial -... |
29 |
# o if we encounter foo/ in $(obj-m), remove it from $(obj-m) |
1da177e4c Linux-2.6.12-rc2 |
30 |
# and add the directory to the list of dirs to descend into: $(subdir-m) |
551559e13 kbuild: implement... |
31 32 33 34 |
# Determine modorder. # Unfortunately, we don't have information about ordering between -y # and -m subdirs. Just put -y's first. modorder := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m:.o=.ko)) |
1da177e4c Linux-2.6.12-rc2 |
35 36 37 38 39 40 41 42 43 44 |
__subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y))) subdir-y += $(__subdir-y) __subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m))) subdir-m += $(__subdir-m) obj-y := $(patsubst %/, %/built-in.o, $(obj-y)) obj-m := $(filter-out %/, $(obj-m)) # Subdirectories we need to descend into subdir-ym := $(sort $(subdir-y) $(subdir-m)) |
38385f8f0 kbuild: trivial -... |
45 |
# if $(foo-objs) exists, foo.o is a composite object |
1da177e4c Linux-2.6.12-rc2 |
46 |
multi-used-y := $(sort $(foreach m,$(obj-y), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y))), $(m)))) |
cf4f21938 kbuild: Allow to ... |
47 |
multi-used-m := $(sort $(foreach m,$(obj-m), $(if $(strip $($(m:.o=-objs)) $($(m:.o=-y)) $($(m:.o=-m))), $(m)))) |
1da177e4c Linux-2.6.12-rc2 |
48 49 50 51 52 53 54 55 |
multi-used := $(multi-used-y) $(multi-used-m) single-used-m := $(sort $(filter-out $(multi-used-m),$(obj-m))) # Build list of the parts of our composite objects, our composite # objects depend on those (obviously) multi-objs-y := $(foreach m, $(multi-used-y), $($(m:.o=-objs)) $($(m:.o=-y))) multi-objs-m := $(foreach m, $(multi-used-m), $($(m:.o=-objs)) $($(m:.o=-y))) multi-objs := $(multi-objs-y) $(multi-objs-m) |
f5fb97652 kbuild: fix direc... |
56 57 58 |
# $(subdir-obj-y) is the list of objects in $(obj-y) which uses dir/ to # tell kbuild to descend subdir-obj-y := $(filter %/built-in.o, $(obj-y)) |
1da177e4c Linux-2.6.12-rc2 |
59 60 |
# $(obj-dirs) is a list of directories that contain object files |
4d47dde47 kbuild: create di... |
61 |
obj-dirs := $(dir $(multi-objs) $(obj-y)) |
1da177e4c Linux-2.6.12-rc2 |
62 63 64 |
# Replace multi-part objects by their individual parts, look at local dir only 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) |
cf4f21938 kbuild: Allow to ... |
65 |
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))) |
1da177e4c Linux-2.6.12-rc2 |
66 67 68 69 70 71 |
# Add subdir path extra-y := $(addprefix $(obj)/,$(extra-y)) always := $(addprefix $(obj)/,$(always)) targets := $(addprefix $(obj)/,$(targets)) |
551559e13 kbuild: implement... |
72 |
modorder := $(addprefix $(obj)/,$(modorder)) |
1da177e4c Linux-2.6.12-rc2 |
73 74 75 76 77 78 79 80 81 82 83 84 85 |
obj-y := $(addprefix $(obj)/,$(obj-y)) obj-m := $(addprefix $(obj)/,$(obj-m)) lib-y := $(addprefix $(obj)/,$(lib-y)) subdir-obj-y := $(addprefix $(obj)/,$(subdir-obj-y)) real-objs-y := $(addprefix $(obj)/,$(real-objs-y)) real-objs-m := $(addprefix $(obj)/,$(real-objs-m)) single-used-m := $(addprefix $(obj)/,$(single-used-m)) multi-used-y := $(addprefix $(obj)/,$(multi-used-y)) multi-used-m := $(addprefix $(obj)/,$(multi-used-m)) multi-objs-y := $(addprefix $(obj)/,$(multi-objs-y)) multi-objs-m := $(addprefix $(obj)/,$(multi-objs-m)) subdir-ym := $(addprefix $(obj)/,$(subdir-ym)) obj-dirs := $(addprefix $(obj)/,$(obj-dirs)) |
1da177e4c Linux-2.6.12-rc2 |
86 87 |
# These flags are needed for modversions and compiling, so we define them here # already |
38385f8f0 kbuild: trivial -... |
88 |
# $(modname_flags) #defines KBUILD_MODNAME as the name of the module it will |
1da177e4c Linux-2.6.12-rc2 |
89 |
# end up in (or would, if it gets compiled in) |
5bb0571bf kbuild: Fix comme... |
90 91 92 |
# Note: Files that end up in two or more modules are compiled without the # KBUILD_MODNAME definition. The reason is that any made-up name would # differ in different configs. |
b42841b7b kbuild: Get rid o... |
93 94 |
name-fix = $(squote)$(quote)$(subst $(comma),_,$(subst -,_,$1))$(quote)$(squote) basename_flags = -DKBUILD_BASENAME=$(call name-fix,$(basetarget)) |
f83b5e323 kbuild: set corre... |
95 |
modname_flags = $(if $(filter 1,$(words $(modname))),\ |
b42841b7b kbuild: Get rid o... |
96 |
-DKBUILD_MODNAME=$(call name-fix,$(modname))) |
1da177e4c Linux-2.6.12-rc2 |
97 |
|
720097d89 kbuild: introduce... |
98 |
orig_c_flags = $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(KBUILD_SUBDIR_CCFLAGS) \ |
d8672b40d kbuild: expand -I... |
99 |
$(ccflags-y) $(CFLAGS_$(basetarget).o) |
656ee82cc kbuild: create ne... |
100 |
_c_flags = $(filter-out $(CFLAGS_REMOVE_$(basetarget).o), $(orig_c_flags)) |
a7e137eb9 kbuild: add AFLAG... |
101 |
orig_a_flags = $(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(KBUILD_SUBDIR_ASFLAGS) \ |
d8672b40d kbuild: expand -I... |
102 |
$(asflags-y) $(AFLAGS_$(basetarget).o) |
a7e137eb9 kbuild: add AFLAG... |
103 |
_a_flags = $(filter-out $(AFLAGS_REMOVE_$(basetarget).o), $(orig_a_flags)) |
f77bf0142 kbuild: introduce... |
104 |
_cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(@F)) |
1da177e4c Linux-2.6.12-rc2 |
105 |
|
2521f2c22 gcov: add gcov pr... |
106 107 108 109 110 111 112 113 114 115 |
# # Enable gcov profiling flags for a file, directory or for all files depending # on variables GCOV_PROFILE_obj.o, GCOV_PROFILE and CONFIG_GCOV_PROFILE_ALL # (in this order) # ifeq ($(CONFIG_GCOV_KERNEL),y) _c_flags += $(if $(patsubst n%,, \ $(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \ $(CFLAGS_GCOV)) endif |
0b24becc8 kasan: add kernel... |
116 117 118 119 120 121 122 |
# # Enable address sanitizer flags for kernel except some files or directories # we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE) # ifeq ($(CONFIG_KASAN),y) _c_flags += $(if $(patsubst n%,, \ $(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \ |
e186d8bfd kasan: don't emit... |
123 |
$(CFLAGS_KASAN), $(CFLAGS_KASAN_NOSANITIZE)) |
0b24becc8 kasan: add kernel... |
124 |
endif |
c6d308534 UBSAN: run-time u... |
125 126 127 128 129 |
ifeq ($(CONFIG_UBSAN),y) _c_flags += $(if $(patsubst n%,, \ $(UBSAN_SANITIZE_$(basetarget).o)$(UBSAN_SANITIZE)$(CONFIG_UBSAN_SANITIZE_ALL)), \ $(CFLAGS_UBSAN)) endif |
5c9a8750a kernel: add kcov ... |
130 131 |
ifeq ($(CONFIG_KCOV),y) _c_flags += $(if $(patsubst n%,, \ |
a4691deab kcov: allow more ... |
132 |
$(KCOV_INSTRUMENT_$(basetarget).o)$(KCOV_INSTRUMENT)$(CONFIG_KCOV_INSTRUMENT_ALL)), \ |
5c9a8750a kernel: add kcov ... |
133 134 |
$(CFLAGS_KCOV)) endif |
1da177e4c Linux-2.6.12-rc2 |
135 136 137 138 139 140 141 142 |
# If building the kernel in a separate objtree expand all occurrences # of -Idir to -I$(srctree)/dir except for absolute paths (starting with '/'). ifeq ($(KBUILD_SRC),) __c_flags = $(_c_flags) __a_flags = $(_a_flags) __cpp_flags = $(_cpp_flags) else |
1da177e4c Linux-2.6.12-rc2 |
143 144 145 146 |
# -I$(obj) locates generated .h files # $(call addtree,-I$(obj)) locates .h files in srctree, from generated .c files # and locates generated .h files # FIXME: Replace both with specific CFLAGS* statements in the makefiles |
4607ebf04 kbuild: external ... |
147 |
__c_flags = $(if $(obj),$(call addtree,-I$(src)) -I$(obj)) \ |
db547ef19 Kbuild: don't add... |
148 149 150 |
$(call flags,_c_flags) __a_flags = $(call flags,_a_flags) __cpp_flags = $(call flags,_cpp_flags) |
1da177e4c Linux-2.6.12-rc2 |
151 |
endif |
d8672b40d kbuild: expand -I... |
152 153 |
c_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \ $(__c_flags) $(modkern_cflags) \ |
b42841b7b kbuild: Get rid o... |
154 |
$(basename_flags) $(modname_flags) |
1da177e4c Linux-2.6.12-rc2 |
155 |
|
d8672b40d kbuild: expand -I... |
156 |
a_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \ |
1da177e4c Linux-2.6.12-rc2 |
157 |
$(__a_flags) $(modkern_aflags) |
d8672b40d kbuild: expand -I... |
158 159 |
cpp_flags = -Wp,-MD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \ $(__cpp_flags) |
1da177e4c Linux-2.6.12-rc2 |
160 |
|
f77bf0142 kbuild: introduce... |
161 |
ld_flags = $(LDFLAGS) $(ldflags-y) |
1da177e4c Linux-2.6.12-rc2 |
162 |
|
50f9ddaf6 of: search script... |
163 |
DTC_INCLUDE := $(srctree)/scripts/dtc/include-prefixes |
b0a4d8b3c kbuild: make sure... |
164 |
dtc_cpp_flags = -Wp,-MD,$(depfile).pre.tmp -nostdinc \ |
50f9ddaf6 of: search script... |
165 |
$(addprefix -I,$(DTC_INCLUDE)) \ |
e570d7c15 kbuild: limit dtc... |
166 |
-undef -D__DTS__ |
1da177e4c Linux-2.6.12-rc2 |
167 168 169 |
# Finds the multi-part object the current object will be linked into modname-multi = $(sort $(foreach m,$(multi-used),\ $(if $(filter $(subst $(obj)/,,$*.o), $($(m:.o=-objs)) $($(m:.o=-y))),$(m:.o=)))) |
c8589d1e9 kbuild: handle mu... |
170 171 172 173 174 175 176 177 |
# Useful for describing the dependency of composite objects # Usage: # $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add) define multi_depend $(foreach m, $(notdir $1), \ $(eval $(obj)/$m: \ $(addprefix $(obj)/, $(foreach s, $3, $($(m:%$(strip $2)=%$(s))))))) endef |
7373f4f83 kbuild: add impli... |
178 |
ifdef REGENERATE_PARSERS |
7373f4f83 kbuild: add impli... |
179 180 181 182 183 184 |
# LEX # --------------------------------------------------------------------------- LEX_PREFIX = $(if $(LEX_PREFIX_${baseprereq}),$(LEX_PREFIX_${baseprereq}),yy) quiet_cmd_flex = LEX $@ cmd_flex = flex -o$@ -L -P $(LEX_PREFIX) $< |
58238c814 kbuild: prevent m... |
185 |
.PRECIOUS: $(src)/%.lex.c_shipped |
7373f4f83 kbuild: add impli... |
186 187 188 189 190 191 192 193 194 |
$(src)/%.lex.c_shipped: $(src)/%.l $(call cmd,flex) # YACC # --------------------------------------------------------------------------- YACC_PREFIX = $(if $(YACC_PREFIX_${baseprereq}),$(YACC_PREFIX_${baseprereq}),yy) quiet_cmd_bison = YACC $@ cmd_bison = bison -o$@ -t -l -p $(YACC_PREFIX) $< |
58238c814 kbuild: prevent m... |
195 |
.PRECIOUS: $(src)/%.tab.c_shipped |
7373f4f83 kbuild: add impli... |
196 197 198 199 200 |
$(src)/%.tab.c_shipped: $(src)/%.y $(call cmd,bison) quiet_cmd_bison_h = YACC $@ cmd_bison_h = bison -o/dev/null --defines=$@ -t -l -p $(YACC_PREFIX) $< |
58238c814 kbuild: prevent m... |
201 |
.PRECIOUS: $(src)/%.tab.h_shipped |
7373f4f83 kbuild: add impli... |
202 203 204 205 |
$(src)/%.tab.h_shipped: $(src)/%.y $(call cmd,bison_h) endif |
1da177e4c Linux-2.6.12-rc2 |
206 207 208 209 210 |
# Shipped files # =========================================================================== quiet_cmd_shipped = SHIPPED $@ cmd_shipped = cat $< > $@ |
991d76c95 kbuild: simplify ... |
211 |
$(obj)/%: $(src)/%_shipped |
1da177e4c Linux-2.6.12-rc2 |
212 213 214 215 |
$(call cmd,shipped) # Commands useful for building a boot image # =========================================================================== |
38385f8f0 kbuild: trivial -... |
216 |
# |
1da177e4c Linux-2.6.12-rc2 |
217 218 219 220 221 |
# Use as following: # # target: source(s) FORCE # $(if_changed,ld/objcopy/gzip) # |
836caba77 kbuild: kill back... |
222 |
# and add target to extra-y so that we know we have to |
1da177e4c Linux-2.6.12-rc2 |
223 224 225 226 227 228 |
# read in the saved command line # Linking # --------------------------------------------------------------------------- quiet_cmd_ld = LD $@ |
f77bf0142 kbuild: introduce... |
229 |
cmd_ld = $(LD) $(LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F)) \ |
38385f8f0 kbuild: trivial -... |
230 |
$(filter-out FORCE,$^) -o $@ |
1da177e4c Linux-2.6.12-rc2 |
231 232 233 234 235 236 237 238 239 240 241 |
# Objcopy # --------------------------------------------------------------------------- quiet_cmd_objcopy = OBJCOPY $@ cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ # Gzip # --------------------------------------------------------------------------- quiet_cmd_gzip = GZIP $@ |
6ae9ecb86 kbuild: Call gzip... |
242 |
cmd_gzip = (cat $(filter-out FORCE,$^) | gzip -n -f -9 > $@) || \ |
d3dd3b5a2 kbuild: allow com... |
243 |
(rm -f $@ ; false) |
1da177e4c Linux-2.6.12-rc2 |
244 |
|
aab94339c of: Add support f... |
245 246 |
# DTC # --------------------------------------------------------------------------- |
6b22b3d16 kbuild: Allow usi... |
247 |
DTC ?= $(objtree)/scripts/dtc/dtc |
aab94339c of: Add support f... |
248 |
|
bc553986a dtc: turn off dtc... |
249 250 |
# Disable noisy checks by default ifeq ($(KBUILD_ENABLE_EXTRA_GCC_CHECKS),) |
8654cb8d0 dtc: update warni... |
251 252 253 254 255 256 |
DTC_FLAGS += -Wno-unit_address_vs_reg \ -Wno-simple_bus_reg \ -Wno-unit_address_format \ -Wno-pci_bridge \ -Wno-pci_device_bus_num \ -Wno-pci_device_reg |
bc553986a dtc: turn off dtc... |
257 |
endif |
8654cb8d0 dtc: update warni... |
258 259 260 |
ifeq ($(KBUILD_ENABLE_EXTRA_GCC_CHECKS),2) DTC_FLAGS += -Wnode_name_chars_strict \ -Wproperty_name_chars_strict |
bc553986a dtc: turn off dtc... |
261 |
endif |
331f74167 of: per-file dtc ... |
262 |
DTC_FLAGS += $(DTC_FLAGS_$(basetarget)) |
aab94339c of: Add support f... |
263 |
# Generate an assembly file to wrap the output of the device tree compiler |
1c00a47e4 Makefile.lib: ali... |
264 |
quiet_cmd_dt_S_dtb= DTB $@ |
aab94339c of: Add support f... |
265 266 267 268 269 |
cmd_dt_S_dtb= \ ( \ echo '\#include <asm-generic/vmlinux.lds.h>'; \ echo '.section .dtb.init.rodata,"a"'; \ echo '.balign STRUCT_ALIGNMENT'; \ |
ffced0418 kbuild: Handle bu... |
270 271 |
echo '.global __dtb_$(subst -,_,$(*F))_begin'; \ echo '__dtb_$(subst -,_,$(*F))_begin:'; \ |
aab94339c of: Add support f... |
272 |
echo '.incbin "$<" '; \ |
ffced0418 kbuild: Handle bu... |
273 274 |
echo '__dtb_$(subst -,_,$(*F))_end:'; \ echo '.global __dtb_$(subst -,_,$(*F))_end'; \ |
aab94339c of: Add support f... |
275 276 277 278 279 280 281 |
echo '.balign STRUCT_ALIGNMENT'; \ ) > $@ $(obj)/%.dtb.S: $(obj)/%.dtb $(call cmd,dt_S_dtb) quiet_cmd_dtc = DTC $@ |
77479b38e kbuild: Create di... |
282 283 |
cmd_dtc = mkdir -p $(dir ${dtc-tmp}) ; \ $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \ |
6b22b3d16 kbuild: Allow usi... |
284 |
$(DTC) -O dtb -o $@ -b 0 \ |
50f9ddaf6 of: search script... |
285 |
$(addprefix -i,$(dir $<) $(DTC_INCLUDE)) $(DTC_FLAGS) \ |
b0a4d8b3c kbuild: make sure... |
286 287 |
-d $(depfile).dtc.tmp $(dtc-tmp) ; \ cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile) |
1da177e4c Linux-2.6.12-rc2 |
288 |
|
90b335fbb kbuild: centraliz... |
289 290 |
$(obj)/%.dtb: $(src)/%.dts FORCE $(call if_changed_dep,dtc) |
b0a4d8b3c kbuild: make sure... |
291 |
dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp) |
22435f383 kbuild: create a ... |
292 |
|
bc22c17e1 bzip2/lzma: libra... |
293 294 |
# Bzip2 # --------------------------------------------------------------------------- |
d3dd3b5a2 kbuild: allow com... |
295 296 |
# Bzip2 and LZMA do not include size in file... so we have to fake that; # append the size as a 32-bit littleendian number as gzip does. |
4a2ff67c8 kbuild: fix bzIma... |
297 |
size_append = printf $(shell \ |
d3dd3b5a2 kbuild: allow com... |
298 299 300 301 302 |
dec_size=0; \ for F in $1; do \ fsize=$$(stat -c "%s" $$F); \ dec_size=$$(expr $$dec_size + $$fsize); \ done; \ |
1373411ae kbuild: really fi... |
303 304 305 306 307 308 309 310 |
printf "%08x " $$dec_size | \ sed 's/\(..\)/\1 /g' | { \ read ch0 ch1 ch2 ch3; \ for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \ printf '%s%03o' '\\' $$((0x$$ch)); \ done; \ } \ |
d3dd3b5a2 kbuild: allow com... |
311 312 313 314 315 316 |
) quiet_cmd_bzip2 = BZIP2 $@ cmd_bzip2 = (cat $(filter-out FORCE,$^) | \ bzip2 -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ (rm -f $@ ; false) |
bc22c17e1 bzip2/lzma: libra... |
317 318 319 320 321 |
# Lzma # --------------------------------------------------------------------------- quiet_cmd_lzma = LZMA $@ |
d3dd3b5a2 kbuild: allow com... |
322 323 324 |
cmd_lzma = (cat $(filter-out FORCE,$^) | \ lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ (rm -f $@ ; false) |
7dd65feb6 lib: add support ... |
325 |
|
2d74b2c62 scripts/Makefile.... |
326 |
quiet_cmd_lzo = LZO $@ |
7dd65feb6 lib: add support ... |
327 328 329 |
cmd_lzo = (cat $(filter-out FORCE,$^) | \ lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ (rm -f $@ ; false) |
d61931d89 x86: Add optimize... |
330 |
|
e76e1fdfa lib: add support ... |
331 332 333 334 |
quiet_cmd_lz4 = LZ4 $@ cmd_lz4 = (cat $(filter-out FORCE,$^) | \ lz4c -l -c1 stdin stdout && $(call size_append, $(filter-out FORCE,$^))) > $@ || \ (rm -f $@ ; false) |
e33936451 Kbuild: centraliz... |
335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 |
# U-Boot mkimage # --------------------------------------------------------------------------- MKIMAGE := $(srctree)/scripts/mkuboot.sh # SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces # the number of overrides in arch makefiles UIMAGE_ARCH ?= $(SRCARCH) UIMAGE_COMPRESSION ?= $(if $(2),$(2),none) UIMAGE_OPTS-y ?= UIMAGE_TYPE ?= kernel UIMAGE_LOADADDR ?= arch_must_set_this UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR) UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)' UIMAGE_IN ?= $< UIMAGE_OUT ?= $@ quiet_cmd_uimage = UIMAGE $(UIMAGE_OUT) cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \ -C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \ -T $(UIMAGE_TYPE) \ -a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \ -n $(UIMAGE_NAME) -d $(UIMAGE_IN) $(UIMAGE_OUT) |
24fa0402a decompressors: ad... |
358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 |
# XZ # --------------------------------------------------------------------------- # Use xzkern to compress the kernel image and xzmisc to compress other things. # # xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage # of the kernel decompressor. A BCJ filter is used if it is available for # the target architecture. xzkern also appends uncompressed size of the data # using size_append. The .xz format has the size information available at # the end of the file too, but it's in more complex format and it's good to # avoid changing the part of the boot code that reads the uncompressed size. # Note that the bytes added by size_append will make the xz tool think that # the file is corrupt. This is expected. # # xzmisc doesn't use size_append, so it can be used to create normal .xz # files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very # big dictionary would increase the memory usage too much in the multi-call # decompression mode. A BCJ filter isn't used either. quiet_cmd_xzkern = XZKERN $@ cmd_xzkern = (cat $(filter-out FORCE,$^) | \ sh $(srctree)/scripts/xz_wrap.sh && \ $(call size_append, $(filter-out FORCE,$^))) > $@ || \ (rm -f $@ ; false) quiet_cmd_xzmisc = XZMISC $@ cmd_xzmisc = (cat $(filter-out FORCE,$^) | \ xz --check=crc32 --lzma2=dict=1MiB) > $@ || \ (rm -f $@ ; false) |
ebf003f0c kbuild: Consolida... |
385 386 387 388 389 |
# ASM offsets # --------------------------------------------------------------------------- # Default sed regexp - multiline due to syntax constraints |
cf0c3e68a kbuild: fix asm-o... |
390 391 392 |
# # Use [:space:] because LLVM's integrated assembler inserts <tab> around # the .ascii directive whereas GCC keeps the <space> as-is. |
ebf003f0c kbuild: Consolida... |
393 |
define sed-offsets |
cf0c3e68a kbuild: fix asm-o... |
394 395 |
's:^[[:space:]]*\.ascii[[:space:]]*"\(.*\)".*:\1:; \ /^->/{s:->#\(.*\):/* \1 */:; \ |
ebf003f0c kbuild: Consolida... |
396 |
s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ |
cf0c3e68a kbuild: fix asm-o... |
397 |
s:->::; p;}' |
ebf003f0c kbuild: Consolida... |
398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 |
endef # Use filechk to avoid rebuilds when a header changes, but the resulting file # does not define filechk_offsets (set -e; \ echo "#ifndef $2"; \ echo "#define $2"; \ echo "/*"; \ echo " * DO NOT MODIFY."; \ echo " *"; \ echo " * This file was generated by Kbuild"; \ echo " */"; \ echo ""; \ sed -ne $(sed-offsets); \ echo ""; \ echo "#endif" ) endef |