1 # ==========================================================================
3 # ==========================================================================
10 # Init all relevant variables used in kbuild files so
11 # 1) they have correct type
12 # 2) they do not inherit any value from the environment
33 # Read auto.conf if it exists, otherwise ignore
34 -include include/config/auto.conf
36 include scripts/Kbuild.include
38 # For backward compatibility check that these variables do not change
39 save-cflags := $(CFLAGS)
41 # The filename Kbuild has precedence over Makefile
42 kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
43 kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile)
44 include $(kbuild-file)
46 # If the save-* variables changed error out
47 ifeq ($(KBUILD_NOPEDANTIC),)
48 ifneq ("$(save-cflags)","$(CFLAGS)")
49 $(error CFLAGS was changed in "$(kbuild-file)". Fix it to use ccflags-y)
53 include scripts/Makefile.lib
56 ifneq ($(hostprogs-y),$(host-progs))
57 $(warning kbuild: $(obj)/Makefile - Usage of host-progs is deprecated. Please replace with hostprogs-y!)
58 hostprogs-y += $(host-progs)
62 # Do not include host rules unless needed
63 ifneq ($(hostprogs-y)$(hostprogs-m)$(hostlibs-y)$(hostlibs-m)$(hostcxxlibs-y)$(hostcxxlibs-m),)
64 include scripts/Makefile.host
67 ifneq ($(KBUILD_SRC),)
68 # Create output directory if not already present
69 _dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
71 # Create directories for object files if directory does not exist
72 # Needed when obj-y := dir/file.o syntax is used
73 _dummy := $(foreach d,$(obj-dirs), $(shell [ -d $(d) ] || mkdir -p $(d)))
77 $(warning kbuild: Makefile.build is included improperly)
80 # ===========================================================================
82 ifneq ($(strip $(lib-y) $(lib-m) $(lib-)),)
83 lib-target := $(obj)/lib.a
84 obj-y += $(obj)/lib-ksyms.o
87 ifneq ($(strip $(obj-y) $(obj-m) $(obj-) $(subdir-m) $(lib-target)),)
88 builtin-target := $(obj)/built-in.o
91 modorder-target := $(obj)/modules.order
93 # We keep a list of all modules in $(MODVERDIR)
95 __build: $(if $(KBUILD_BUILTIN),$(builtin-target) $(lib-target) $(extra-y)) \
96 $(if $(KBUILD_MODULES),$(obj-m) $(modorder-target)) \
97 $(subdir-ym) $(always)
100 # Linus' kernel sanity checking tool
101 ifneq ($(KBUILD_CHECKSRC),0)
102 ifeq ($(KBUILD_CHECKSRC),2)
103 quiet_cmd_force_checksrc = CHECK $<
104 cmd_force_checksrc = $(CHECK) $(CHECKFLAGS) $(c_flags) $< ;
106 quiet_cmd_checksrc = CHECK $<
107 cmd_checksrc = $(CHECK) $(CHECKFLAGS) $(c_flags) $< ;
111 ifneq ($(KBUILD_ENABLE_EXTRA_GCC_CHECKS),)
112 cmd_checkdoc = $(srctree)/scripts/kernel-doc -none $< ;
115 # Do section mismatch analysis for each module/built-in.o
116 ifdef CONFIG_DEBUG_SECTION_MISMATCH
117 cmd_secanalysis = ; scripts/mod/modpost $@
120 # Compile C sources (.c)
121 # ---------------------------------------------------------------------------
123 # Default is built-in, unless we know otherwise
125 $(if $(part-of-module), \
126 $(KBUILD_CFLAGS_MODULE) $(CFLAGS_MODULE), \
127 $(KBUILD_CFLAGS_KERNEL) $(CFLAGS_KERNEL))
128 quiet_modtag := $(empty) $(empty)
130 $(real-objs-m) : part-of-module := y
131 $(real-objs-m:.o=.i) : part-of-module := y
132 $(real-objs-m:.o=.s) : part-of-module := y
133 $(real-objs-m:.o=.lst): part-of-module := y
135 $(real-objs-m) : quiet_modtag := [M]
136 $(real-objs-m:.o=.i) : quiet_modtag := [M]
137 $(real-objs-m:.o=.s) : quiet_modtag := [M]
138 $(real-objs-m:.o=.lst): quiet_modtag := [M]
140 $(obj-m) : quiet_modtag := [M]
142 # Default for not multi-part modules
143 modname = $(basetarget)
145 $(multi-objs-m) : modname = $(modname-multi)
146 $(multi-objs-m:.o=.i) : modname = $(modname-multi)
147 $(multi-objs-m:.o=.s) : modname = $(modname-multi)
148 $(multi-objs-m:.o=.lst) : modname = $(modname-multi)
149 $(multi-objs-y) : modname = $(modname-multi)
150 $(multi-objs-y:.o=.i) : modname = $(modname-multi)
151 $(multi-objs-y:.o=.s) : modname = $(modname-multi)
152 $(multi-objs-y:.o=.lst) : modname = $(modname-multi)
154 quiet_cmd_cc_s_c = CC $(quiet_modtag) $@
155 cmd_cc_s_c = $(CC) $(c_flags) $(DISABLE_LTO) -fverbose-asm -S -o $@ $<
157 $(obj)/%.s: $(src)/%.c FORCE
158 $(call if_changed_dep,cc_s_c)
160 quiet_cmd_cpp_i_c = CPP $(quiet_modtag) $@
161 cmd_cpp_i_c = $(CPP) $(c_flags) -o $@ $<
163 $(obj)/%.i: $(src)/%.c FORCE
164 $(call if_changed_dep,cpp_i_c)
166 # These mirror gensymtypes_S and co below, keep them in synch.
167 cmd_gensymtypes_c = \
168 $(CPP) -D__GENKSYMS__ $(c_flags) $< | \
169 $(GENKSYMS) $(if $(1), -T $(2)) \
170 $(patsubst y,-s _,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX)) \
171 $(patsubst y,-R,$(CONFIG_MODULE_REL_CRCS)) \
172 $(if $(KBUILD_PRESERVE),-p) \
173 -r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null))
175 quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@
176 cmd_cc_symtypes_c = \
178 $(call cmd_gensymtypes_c,true,$@) >/dev/null; \
179 test -s $@ || rm -f $@
181 $(obj)/%.symtypes : $(src)/%.c FORCE
182 $(call cmd,cc_symtypes_c)
185 # Generate .ll files from .c
186 quiet_cmd_cc_ll_c = CC $(quiet_modtag) $@
187 cmd_cc_ll_c = $(CC) $(c_flags) -emit-llvm -S -o $@ $<
189 $(obj)/%.ll: $(src)/%.c FORCE
190 $(call if_changed_dep,cc_ll_c)
193 # The C file is compiled and updated dependency information is generated.
194 # (See cmd_cc_o_c + relevant part of rule_cc_o_c)
196 quiet_cmd_cc_o_c = CC $(quiet_modtag) $@
198 ifndef CONFIG_MODVERSIONS
199 cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
202 # When module versioning is enabled the following steps are executed:
203 # o compile a .tmp_<file>.o from <file>.c
204 # o if .tmp_<file>.o doesn't contain a __ksymtab version, i.e. does
205 # not export symbols, we just rename .tmp_<file>.o to <file>.o and
207 # o otherwise, we calculate symbol versions using the good old
208 # genksyms on the preprocessed source and postprocess them in a way
209 # that they are usable as a linker script
210 # o generate <file>.o from .tmp_<file>.o using the linker to
211 # replace the unresolved symbols __crc_exported_symbol with
212 # the actual value of the checksum generated by genksyms
214 cmd_cc_o_c = $(CC) $(c_flags) -c -o $(@D)/.tmp_$(@F) $<
216 cmd_modversions_c = \
217 if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \
218 $(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
219 > $(@D)/.tmp_$(@F:.o=.ver); \
221 $(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \
222 -T $(@D)/.tmp_$(@F:.o=.ver); \
223 rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver); \
225 mv -f $(@D)/.tmp_$(@F) $@; \
229 ifdef CONFIG_FTRACE_MCOUNT_RECORD
230 ifdef BUILD_C_RECORDMCOUNT
231 ifeq ("$(origin RECORDMCOUNT_WARN)", "command line")
232 RECORDMCOUNT_FLAGS = -w
234 # Due to recursion, we must skip empty.o.
235 # The empty.o file is created in the make process in order to determine
236 # the target endianness and word size. It is made before all other C
237 # files, including recordmcount.
238 sub_cmd_record_mcount = \
239 if [ $(@) != "scripts/mod/empty.o" ]; then \
240 $(objtree)/scripts/recordmcount $(RECORDMCOUNT_FLAGS) "$(@)"; \
242 recordmcount_source := $(srctree)/scripts/recordmcount.c \
243 $(srctree)/scripts/recordmcount.h
245 sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \
246 "$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \
247 "$(if $(CONFIG_64BIT),64,32)" \
248 "$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CFLAGS)" \
249 "$(LD)" "$(NM)" "$(RM)" "$(MV)" \
250 "$(if $(part-of-module),1,0)" "$(@)";
251 recordmcount_source := $(srctree)/scripts/recordmcount.pl
252 endif # BUILD_C_RECORDMCOUNT
253 cmd_record_mcount = \
254 if [ "$(findstring $(CC_FLAGS_FTRACE),$(_c_flags))" = \
255 "$(CC_FLAGS_FTRACE)" ]; then \
256 $(sub_cmd_record_mcount) \
258 endif # CONFIG_FTRACE_MCOUNT_RECORD
260 ifdef CONFIG_STACK_VALIDATION
261 ifneq ($(SKIP_STACK_VALIDATION),1)
263 __objtool_obj := $(objtree)/tools/objtool/objtool
265 objtool_args = $(if $(CONFIG_ORC_UNWINDER),orc generate,check)
267 ifndef CONFIG_FRAME_POINTER
268 objtool_args += --no-fp
270 ifdef CONFIG_GCOV_KERNEL
271 objtool_args += --no-unreachable
274 # 'OBJECT_FILES_NON_STANDARD := y': skip objtool checking for a directory
275 # 'OBJECT_FILES_NON_STANDARD_foo.o := 'y': skip objtool checking for a file
276 # 'OBJECT_FILES_NON_STANDARD_foo.o := 'n': override directory skip for a file
277 cmd_objtool = $(if $(patsubst y%,, \
278 $(OBJECT_FILES_NON_STANDARD_$(basetarget).o)$(OBJECT_FILES_NON_STANDARD)n), \
279 $(__objtool_obj) $(objtool_args) "$(@)";)
280 objtool_obj = $(if $(patsubst y%,, \
281 $(OBJECT_FILES_NON_STANDARD_$(basetarget).o)$(OBJECT_FILES_NON_STANDARD)n), \
284 endif # SKIP_STACK_VALIDATION
285 endif # CONFIG_STACK_VALIDATION
287 # Rebuild all objects when objtool changes, or is enabled/disabled.
288 objtool_dep = $(objtool_obj) \
289 $(wildcard include/config/orc/unwinder.h \
290 include/config/stack/validation.h)
293 $(call echo-cmd,checksrc) $(cmd_checksrc) \
294 $(call cmd_and_fixdep,cc_o_c) \
295 $(cmd_modversions_c) \
297 $(call echo-cmd,objtool) $(cmd_objtool) \
298 $(call echo-cmd,record_mcount) $(cmd_record_mcount)
302 $(call cmd_and_fixdep,as_o_S) \
303 $(cmd_modversions_S) \
304 $(call echo-cmd,objtool) $(cmd_objtool)
307 # List module undefined symbols (or empty line if not enabled)
308 ifdef CONFIG_TRIM_UNUSED_KSYMS
309 cmd_undef_syms = $(NM) $@ | sed -n 's/^ \+U //p' | xargs echo
311 cmd_undef_syms = echo
314 # Built-in and composite module parts
315 $(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_dep) FORCE
316 $(call cmd,force_checksrc)
317 $(call if_changed_rule,cc_o_c)
319 # Single-part modules are special since we need to mark them in $(MODVERDIR)
321 $(single-used-m): $(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_dep) FORCE
322 $(call cmd,force_checksrc)
323 $(call if_changed_rule,cc_o_c)
324 @{ echo $(@:.o=.ko); echo $@; \
325 $(cmd_undef_syms); } > $(MODVERDIR)/$(@F:.o=.mod)
327 quiet_cmd_cc_lst_c = MKLST $@
328 cmd_cc_lst_c = $(CC) $(c_flags) -g -c -o $*.o $< && \
329 $(CONFIG_SHELL) $(srctree)/scripts/makelst $*.o \
330 System.map $(OBJDUMP) > $@
332 $(obj)/%.lst: $(src)/%.c FORCE
333 $(call if_changed_dep,cc_lst_c)
335 # Compile assembler sources (.S)
336 # ---------------------------------------------------------------------------
338 modkern_aflags := $(KBUILD_AFLAGS_KERNEL) $(AFLAGS_KERNEL)
340 $(real-objs-m) : modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
341 $(real-objs-m:.o=.s): modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
343 # .S file exports must have their C prototypes defined in asm/asm-prototypes.h
344 # or a file that it includes, in order to get versioned symbols. We build a
345 # dummy C file that includes asm-prototypes and the EXPORT_SYMBOL lines from
346 # the .S file (with trailing ';'), and run genksyms on that, to extract vers.
348 # This is convoluted. The .S file must first be preprocessed to run guards and
349 # expand names, then the resulting exports must be constructed into plain
350 # EXPORT_SYMBOL(symbol); to build our dummy C file, and that gets preprocessed
351 # to make the genksyms input.
353 # These mirror gensymtypes_c and co above, keep them in synch.
354 cmd_gensymtypes_S = \
355 (echo "\#include <linux/kernel.h>" ; \
356 echo "\#include <asm/asm-prototypes.h>" ; \
357 $(CPP) $(a_flags) $< | \
358 grep "\<___EXPORT_SYMBOL\>" | \
359 sed 's/.*___EXPORT_SYMBOL[[:space:]]*\([a-zA-Z0-9_]*\)[[:space:]]*,.*/EXPORT_SYMBOL(\1);/' ) | \
360 $(CPP) -D__GENKSYMS__ $(c_flags) -xc - | \
361 $(GENKSYMS) $(if $(1), -T $(2)) \
362 $(patsubst y,-s _,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX)) \
363 $(patsubst y,-R,$(CONFIG_MODULE_REL_CRCS)) \
364 $(if $(KBUILD_PRESERVE),-p) \
365 -r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null))
367 quiet_cmd_cc_symtypes_S = SYM $(quiet_modtag) $@
368 cmd_cc_symtypes_S = \
370 $(call cmd_gensymtypes_S,true,$@) >/dev/null; \
371 test -s $@ || rm -f $@
373 $(obj)/%.symtypes : $(src)/%.S FORCE
374 $(call cmd,cc_symtypes_S)
377 quiet_cmd_cpp_s_S = CPP $(quiet_modtag) $@
378 cmd_cpp_s_S = $(CPP) $(a_flags) -o $@ $<
380 $(obj)/%.s: $(src)/%.S FORCE
381 $(call if_changed_dep,cpp_s_S)
383 quiet_cmd_as_o_S = AS $(quiet_modtag) $@
385 ifndef CONFIG_MODVERSIONS
386 cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
390 ASM_PROTOTYPES := $(wildcard $(srctree)/arch/$(SRCARCH)/include/asm/asm-prototypes.h)
392 ifeq ($(ASM_PROTOTYPES),)
393 cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
397 # versioning matches the C process described above, with difference that
398 # we parse asm-prototypes.h C header to get function definitions.
400 cmd_as_o_S = $(CC) $(a_flags) -c -o $(@D)/.tmp_$(@F) $<
402 cmd_modversions_S = \
403 if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \
404 $(call cmd_gensymtypes_S,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
405 > $(@D)/.tmp_$(@F:.o=.ver); \
407 $(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \
408 -T $(@D)/.tmp_$(@F:.o=.ver); \
409 rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver); \
411 mv -f $(@D)/.tmp_$(@F) $@; \
416 $(obj)/%.o: $(src)/%.S $(objtool_dep) FORCE
417 $(call if_changed_rule,as_o_S)
419 targets += $(real-objs-y) $(real-objs-m) $(lib-y)
420 targets += $(extra-y) $(MAKECMDGOALS) $(always)
422 # Linker scripts preprocessor (.lds.S -> .lds)
423 # ---------------------------------------------------------------------------
424 quiet_cmd_cpp_lds_S = LDS $@
425 cmd_cpp_lds_S = $(CPP) $(cpp_flags) -P -C -U$(ARCH) \
426 -D__ASSEMBLY__ -DLINKER_SCRIPT -o $@ $<
428 $(obj)/%.lds: $(src)/%.lds.S FORCE
429 $(call if_changed_dep,cpp_lds_S)
432 # ---------------------------------------------------------------------------
433 quiet_cmd_asn1_compiler = ASN.1 $@
434 cmd_asn1_compiler = $(objtree)/scripts/asn1_compiler $< \
435 $(subst .h,.c,$@) $(subst .c,.h,$@)
437 .PRECIOUS: $(objtree)/$(obj)/%-asn1.c $(objtree)/$(obj)/%-asn1.h
439 $(obj)/%-asn1.c $(obj)/%-asn1.h: $(src)/%.asn1 $(objtree)/scripts/asn1_compiler
440 $(call cmd,asn1_compiler)
442 # Build the compiled-in targets
443 # ---------------------------------------------------------------------------
445 # To build objects in subdirs, we need to descend into the directories
446 $(sort $(subdir-obj-y)): $(subdir-ym) ;
449 # Rule to compile a set of .o files into one .o file
453 ifdef CONFIG_THIN_ARCHIVES
454 cmd_make_builtin = rm -f $@; $(AR) rcSTP$(KBUILD_ARFLAGS)
455 cmd_make_empty_builtin = rm -f $@; $(AR) rcSTP$(KBUILD_ARFLAGS)
456 quiet_cmd_link_o_target = AR $@
458 cmd_make_builtin = $(LD) $(ld_flags) -r -o
459 cmd_make_empty_builtin = rm -f $@; $(AR) rcs$(KBUILD_ARFLAGS)
460 quiet_cmd_link_o_target = LD $@
463 # If the list of objects to link is empty, just create an empty built-in.o
464 cmd_link_o_target = $(if $(strip $(obj-y)),\
465 $(cmd_make_builtin) $@ $(filter $(obj-y), $^) \
467 $(cmd_make_empty_builtin) $@)
469 $(builtin-target): $(obj-y) FORCE
470 $(call if_changed,link_o_target)
472 targets += $(builtin-target)
473 endif # builtin-target
476 # Rule to create modules.order file
478 # Create commands to either record .ko file or cat modules.order from
481 $(foreach m, $(modorder), \
482 $(if $(filter %/modules.order, $m), \
483 cat $m;, echo kernel/$m;))
485 $(modorder-target): $(subdir-ym) FORCE
486 $(Q)(cat /dev/null; $(modorder-cmds)) > $@
489 # Rule to compile a set of .o files into one .a file
492 quiet_cmd_link_l_target = AR $@
494 ifdef CONFIG_THIN_ARCHIVES
495 cmd_link_l_target = rm -f $@; $(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(lib-y)
497 cmd_link_l_target = rm -f $@; $(AR) rcs$(KBUILD_ARFLAGS) $@ $(lib-y)
500 $(lib-target): $(lib-y) FORCE
501 $(call if_changed,link_l_target)
503 targets += $(lib-target)
505 dummy-object = $(obj)/.lib_exports.o
506 ksyms-lds = $(dot-target).lds
507 ifdef CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX
508 ref_prefix = EXTERN(_
513 quiet_cmd_export_list = EXPORTS $@
514 cmd_export_list = $(OBJDUMP) -h $< | \
515 sed -ne '/___ksymtab/s/.*+\([^ ]*\).*/$(ref_prefix)\1)/p' >$(ksyms-lds);\
516 rm -f $(dummy-object);\
517 echo | $(CC) $(a_flags) -c -o $(dummy-object) -x assembler -;\
518 $(LD) $(ld_flags) -r -o $@ -T $(ksyms-lds) $(dummy-object);\
519 rm $(dummy-object) $(ksyms-lds)
521 $(obj)/lib-ksyms.o: $(lib-target) FORCE
522 $(call if_changed,export_list)
524 targets += $(obj)/lib-ksyms.o
529 # Rule to link composite objects
531 # Composite objects are specified in kbuild makefile as follows:
532 # <composite-object>-objs := <list of .o files>
534 # <composite-object>-y := <list of .o files>
536 # <composite-object>-m := <list of .o files>
537 # The -m syntax only works if <composite object> is a module
539 $(filter $(addprefix $(obj)/, \
540 $($(subst $(obj)/,,$(@:.o=-objs))) \
541 $($(subst $(obj)/,,$(@:.o=-y))) \
542 $($(subst $(obj)/,,$(@:.o=-m)))), $^)
544 cmd_link_multi-link = $(LD) $(ld_flags) -r -o $@ $(link_multi_deps) $(cmd_secanalysis)
546 ifdef CONFIG_THIN_ARCHIVES
547 quiet_cmd_link_multi-y = AR $@
548 cmd_link_multi-y = rm -f $@; $(AR) rcSTP$(KBUILD_ARFLAGS) $@ $(link_multi_deps)
550 quiet_cmd_link_multi-y = LD $@
551 cmd_link_multi-y = $(cmd_link_multi-link)
554 quiet_cmd_link_multi-m = LD [M] $@
555 cmd_link_multi-m = $(cmd_link_multi-link)
557 $(multi-used-y): FORCE
558 $(call if_changed,link_multi-y)
559 $(call multi_depend, $(multi-used-y), .o, -objs -y)
561 $(multi-used-m): FORCE
562 $(call if_changed,link_multi-m)
563 @{ echo $(@:.o=.ko); echo $(link_multi_deps); \
564 $(cmd_undef_syms); } > $(MODVERDIR)/$(@F:.o=.mod)
565 $(call multi_depend, $(multi-used-m), .o, -objs -y -m)
567 targets += $(multi-used-y) $(multi-used-m)
571 # ---------------------------------------------------------------------------
573 PHONY += $(subdir-ym)
575 $(Q)$(MAKE) $(build)=$@
577 # Add FORCE to the prequisites of a target to force it to be always rebuilt.
578 # ---------------------------------------------------------------------------
584 # Read all saved command lines and dependencies for the $(targets) we
585 # may be building above, using $(if_changed{,_dep}). As an
586 # optimization, we don't need to read them if the target does not
587 # exist, we will rebuild anyway in that case.
589 targets := $(wildcard $(sort $(targets)))
590 cmd_files := $(wildcard $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
592 ifneq ($(cmd_files),)
596 # Declare the contents of the .PHONY variable as phony. We keep that
597 # information in a variable se we can use it in if_changed and friends.