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- # SPDX-License-Identifier: GPL-2.0
- # ==========================================================================
- # Building
- # ==========================================================================
- src := $(obj)
- PHONY := __build
- __build:
- # Init all relevant variables used in kbuild files so
- # 1) they have correct type
- # 2) they do not inherit any value from the environment
- obj-y :=
- obj-m :=
- lib-y :=
- lib-m :=
- always :=
- targets :=
- subdir-y :=
- subdir-m :=
- EXTRA_AFLAGS :=
- EXTRA_CFLAGS :=
- EXTRA_CPPFLAGS :=
- EXTRA_LDFLAGS :=
- asflags-y :=
- ccflags-y :=
- cppflags-y :=
- ldflags-y :=
- subdir-asflags-y :=
- subdir-ccflags-y :=
- # Read auto.conf if it exists, otherwise ignore
- -include include/config/auto.conf
- include scripts/Kbuild.include
- # For backward compatibility check that these variables do not change
- save-cflags := $(CFLAGS)
- # The filename Kbuild has precedence over Makefile
- kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
- kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile)
- include $(kbuild-file)
- # If the save-* variables changed error out
- ifeq ($(KBUILD_NOPEDANTIC),)
- ifneq ("$(save-cflags)","$(CFLAGS)")
- $(error CFLAGS was changed in "$(kbuild-file)". Fix it to use ccflags-y)
- endif
- endif
- include scripts/Makefile.lib
- # Do not include host rules unless needed
- ifneq ($(hostprogs-y)$(hostprogs-m)$(hostlibs-y)$(hostlibs-m)$(hostcxxlibs-y)$(hostcxxlibs-m),)
- include scripts/Makefile.host
- endif
- ifndef obj
- $(warning kbuild: Makefile.build is included improperly)
- endif
- # ===========================================================================
- ifneq ($(strip $(lib-y) $(lib-m) $(lib-)),)
- lib-target := $(obj)/lib.a
- real-obj-y += $(obj)/lib-ksyms.o
- endif
- ifneq ($(strip $(real-obj-y) $(need-builtin)),)
- builtin-target := $(obj)/built-in.a
- endif
- modorder-target := $(obj)/modules.order
- # We keep a list of all modules in $(MODVERDIR)
- __build: $(if $(KBUILD_BUILTIN),$(builtin-target) $(lib-target) $(extra-y)) \
- $(if $(KBUILD_MODULES),$(obj-m) $(modorder-target)) \
- $(subdir-ym) $(always)
- @:
- # Linus' kernel sanity checking tool
- ifneq ($(KBUILD_CHECKSRC),0)
- ifeq ($(KBUILD_CHECKSRC),2)
- quiet_cmd_force_checksrc = CHECK $<
- cmd_force_checksrc = $(CHECK) $(CHECKFLAGS) $(c_flags) $< ;
- else
- quiet_cmd_checksrc = CHECK $<
- cmd_checksrc = $(CHECK) $(CHECKFLAGS) $(c_flags) $< ;
- endif
- endif
- ifneq ($(KBUILD_ENABLE_EXTRA_GCC_CHECKS),)
- cmd_checkdoc = $(srctree)/scripts/kernel-doc -none $< ;
- endif
- # Do section mismatch analysis for each module/built-in.a
- ifdef CONFIG_DEBUG_SECTION_MISMATCH
- cmd_secanalysis = ; scripts/mod/modpost $@
- endif
- # Compile C sources (.c)
- # ---------------------------------------------------------------------------
- # Default is built-in, unless we know otherwise
- modkern_cflags = \
- $(if $(part-of-module), \
- $(KBUILD_CFLAGS_MODULE) $(CFLAGS_MODULE), \
- $(KBUILD_CFLAGS_KERNEL) $(CFLAGS_KERNEL))
- quiet_modtag := $(empty) $(empty)
- $(real-obj-m) : part-of-module := y
- $(real-obj-m:.o=.i) : part-of-module := y
- $(real-obj-m:.o=.s) : part-of-module := y
- $(real-obj-m:.o=.lst): part-of-module := y
- $(real-obj-m) : quiet_modtag := [M]
- $(real-obj-m:.o=.i) : quiet_modtag := [M]
- $(real-obj-m:.o=.s) : quiet_modtag := [M]
- $(real-obj-m:.o=.lst): quiet_modtag := [M]
- $(obj-m) : quiet_modtag := [M]
- quiet_cmd_cc_s_c = CC $(quiet_modtag) $@
- cmd_cc_s_c = $(CC) $(c_flags) $(DISABLE_LTO) -fverbose-asm -S -o $@ $<
- $(obj)/%.s: $(src)/%.c FORCE
- $(call if_changed_dep,cc_s_c)
- quiet_cmd_cpp_i_c = CPP $(quiet_modtag) $@
- cmd_cpp_i_c = $(CPP) $(c_flags) -o $@ $<
- $(obj)/%.i: $(src)/%.c FORCE
- $(call if_changed_dep,cpp_i_c)
- # These mirror gensymtypes_S and co below, keep them in synch.
- cmd_gensymtypes_c = \
- $(CPP) -D__GENKSYMS__ $(c_flags) $< | \
- $(GENKSYMS) $(if $(1), -T $(2)) \
- $(patsubst y,-R,$(CONFIG_MODULE_REL_CRCS)) \
- $(if $(KBUILD_PRESERVE),-p) \
- -r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null))
- quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@
- cmd_cc_symtypes_c = \
- set -e; \
- $(call cmd_gensymtypes_c,true,$@) >/dev/null; \
- test -s $@ || rm -f $@
- $(obj)/%.symtypes : $(src)/%.c FORCE
- $(call cmd,cc_symtypes_c)
- # LLVM assembly
- # Generate .ll files from .c
- quiet_cmd_cc_ll_c = CC $(quiet_modtag) $@
- cmd_cc_ll_c = $(CC) $(c_flags) -emit-llvm -S -o $@ $<
- $(obj)/%.ll: $(src)/%.c FORCE
- $(call if_changed_dep,cc_ll_c)
- # C (.c) files
- # The C file is compiled and updated dependency information is generated.
- # (See cmd_cc_o_c + relevant part of rule_cc_o_c)
- quiet_cmd_cc_o_c = CC $(quiet_modtag) $@
- ifndef CONFIG_MODVERSIONS
- cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
- else
- # When module versioning is enabled the following steps are executed:
- # o compile a .tmp_<file>.o from <file>.c
- # o if .tmp_<file>.o doesn't contain a __ksymtab version, i.e. does
- # not export symbols, we just rename .tmp_<file>.o to <file>.o and
- # are done.
- # o otherwise, we calculate symbol versions using the good old
- # genksyms on the preprocessed source and postprocess them in a way
- # that they are usable as a linker script
- # o generate <file>.o from .tmp_<file>.o using the linker to
- # replace the unresolved symbols __crc_exported_symbol with
- # the actual value of the checksum generated by genksyms
- cmd_cc_o_c = $(CC) $(c_flags) -c -o $(@D)/.tmp_$(@F) $<
- cmd_modversions_c = \
- if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \
- $(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
- > $(@D)/.tmp_$(@F:.o=.ver); \
- \
- $(LD) $(KBUILD_LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \
- -T $(@D)/.tmp_$(@F:.o=.ver); \
- rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver); \
- else \
- mv -f $(@D)/.tmp_$(@F) $@; \
- fi;
- endif
- ifdef CONFIG_FTRACE_MCOUNT_RECORD
- ifndef CC_USING_RECORD_MCOUNT
- # compiler will not generate __mcount_loc use recordmcount or recordmcount.pl
- ifdef BUILD_C_RECORDMCOUNT
- ifeq ("$(origin RECORDMCOUNT_WARN)", "command line")
- RECORDMCOUNT_FLAGS = -w
- endif
- # Due to recursion, we must skip empty.o.
- # The empty.o file is created in the make process in order to determine
- # the target endianness and word size. It is made before all other C
- # files, including recordmcount.
- sub_cmd_record_mcount = \
- if [ $(@) != "scripts/mod/empty.o" ]; then \
- $(objtree)/scripts/recordmcount $(RECORDMCOUNT_FLAGS) "$(@)"; \
- fi;
- recordmcount_source := $(srctree)/scripts/recordmcount.c \
- $(srctree)/scripts/recordmcount.h
- else
- sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \
- "$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \
- "$(if $(CONFIG_64BIT),64,32)" \
- "$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS)" \
- "$(LD) $(KBUILD_LDFLAGS)" "$(NM)" "$(RM)" "$(MV)" \
- "$(if $(part-of-module),1,0)" "$(@)";
- recordmcount_source := $(srctree)/scripts/recordmcount.pl
- endif # BUILD_C_RECORDMCOUNT
- cmd_record_mcount = \
- if [ "$(findstring $(CC_FLAGS_FTRACE),$(_c_flags))" = \
- "$(CC_FLAGS_FTRACE)" ]; then \
- $(sub_cmd_record_mcount) \
- fi;
- endif # CC_USING_RECORD_MCOUNT
- endif # CONFIG_FTRACE_MCOUNT_RECORD
- # Don't require recordmcount source for an OOT build.
- ifdef KBUILD_EXTMOD
- recordmcount_source :=
- endif
- ifdef CONFIG_STACK_VALIDATION
- ifneq ($(SKIP_STACK_VALIDATION),1)
- __objtool_obj := $(objtree)/tools/objtool/objtool
- objtool_args = $(if $(CONFIG_UNWINDER_ORC),orc generate,check)
- objtool_args += $(if $(part-of-module), --module,)
- ifndef CONFIG_FRAME_POINTER
- objtool_args += --no-fp
- endif
- ifdef CONFIG_GCOV_KERNEL
- objtool_args += --no-unreachable
- endif
- ifdef CONFIG_RETPOLINE
- objtool_args += --retpoline
- endif
- ifdef CONFIG_MODVERSIONS
- objtool_o = $(@D)/.tmp_$(@F)
- else
- objtool_o = $(@)
- endif
- # 'OBJECT_FILES_NON_STANDARD := y': skip objtool checking for a directory
- # 'OBJECT_FILES_NON_STANDARD_foo.o := 'y': skip objtool checking for a file
- # 'OBJECT_FILES_NON_STANDARD_foo.o := 'n': override directory skip for a file
- cmd_objtool = $(if $(patsubst y%,, \
- $(OBJECT_FILES_NON_STANDARD_$(basetarget).o)$(OBJECT_FILES_NON_STANDARD)n), \
- $(__objtool_obj) $(objtool_args) "$(objtool_o)";)
- objtool_obj = $(if $(patsubst y%,, \
- $(OBJECT_FILES_NON_STANDARD_$(basetarget).o)$(OBJECT_FILES_NON_STANDARD)n), \
- $(__objtool_obj))
- endif # SKIP_STACK_VALIDATION
- endif # CONFIG_STACK_VALIDATION
- # Rebuild all objects when objtool changes, or is enabled/disabled.
- objtool_dep = $(objtool_obj) \
- $(wildcard include/config/orc/unwinder.h \
- include/config/stack/validation.h)
- define rule_cc_o_c
- $(call echo-cmd,checksrc) $(cmd_checksrc) \
- $(call cmd_and_fixdep,cc_o_c) \
- $(cmd_checkdoc) \
- $(call echo-cmd,objtool) $(cmd_objtool) \
- $(cmd_modversions_c) \
- $(call echo-cmd,record_mcount) $(cmd_record_mcount)
- endef
- define rule_as_o_S
- $(call cmd_and_fixdep,as_o_S) \
- $(call echo-cmd,objtool) $(cmd_objtool) \
- $(cmd_modversions_S)
- endef
- # List module undefined symbols (or empty line if not enabled)
- ifdef CONFIG_TRIM_UNUSED_KSYMS
- cmd_undef_syms = $(NM) $@ | sed -n 's/^ *U //p' | xargs echo
- else
- cmd_undef_syms = echo
- endif
- # Built-in and composite module parts
- $(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_dep) FORCE
- $(call cmd,force_checksrc)
- $(call if_changed_rule,cc_o_c)
- # Single-part modules are special since we need to mark them in $(MODVERDIR)
- $(single-used-m): $(obj)/%.o: $(src)/%.c $(recordmcount_source) $(objtool_dep) FORCE
- $(call cmd,force_checksrc)
- $(call if_changed_rule,cc_o_c)
- @{ echo $(@:.o=.ko); echo $@; \
- $(cmd_undef_syms); } > $(MODVERDIR)/$(@F:.o=.mod)
- quiet_cmd_cc_lst_c = MKLST $@
- cmd_cc_lst_c = $(CC) $(c_flags) -g -c -o $*.o $< && \
- $(CONFIG_SHELL) $(srctree)/scripts/makelst $*.o \
- System.map $(OBJDUMP) > $@
- $(obj)/%.lst: $(src)/%.c FORCE
- $(call if_changed_dep,cc_lst_c)
- # Compile assembler sources (.S)
- # ---------------------------------------------------------------------------
- modkern_aflags := $(KBUILD_AFLAGS_KERNEL) $(AFLAGS_KERNEL)
- $(real-obj-m) : modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
- $(real-obj-m:.o=.s): modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
- # .S file exports must have their C prototypes defined in asm/asm-prototypes.h
- # or a file that it includes, in order to get versioned symbols. We build a
- # dummy C file that includes asm-prototypes and the EXPORT_SYMBOL lines from
- # the .S file (with trailing ';'), and run genksyms on that, to extract vers.
- #
- # This is convoluted. The .S file must first be preprocessed to run guards and
- # expand names, then the resulting exports must be constructed into plain
- # EXPORT_SYMBOL(symbol); to build our dummy C file, and that gets preprocessed
- # to make the genksyms input.
- #
- # These mirror gensymtypes_c and co above, keep them in synch.
- cmd_gensymtypes_S = \
- (echo "\#include <linux/kernel.h>" ; \
- echo "\#include <asm/asm-prototypes.h>" ; \
- $(CPP) $(a_flags) $< | \
- grep "\<___EXPORT_SYMBOL\>" | \
- sed 's/.*___EXPORT_SYMBOL[[:space:]]*\([a-zA-Z0-9_]*\)[[:space:]]*,.*/EXPORT_SYMBOL(\1);/' ) | \
- $(CPP) -D__GENKSYMS__ $(c_flags) -xc - | \
- $(GENKSYMS) $(if $(1), -T $(2)) \
- $(patsubst y,-R,$(CONFIG_MODULE_REL_CRCS)) \
- $(if $(KBUILD_PRESERVE),-p) \
- -r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null))
- quiet_cmd_cc_symtypes_S = SYM $(quiet_modtag) $@
- cmd_cc_symtypes_S = \
- set -e; \
- $(call cmd_gensymtypes_S,true,$@) >/dev/null; \
- test -s $@ || rm -f $@
- $(obj)/%.symtypes : $(src)/%.S FORCE
- $(call cmd,cc_symtypes_S)
- quiet_cmd_cpp_s_S = CPP $(quiet_modtag) $@
- cmd_cpp_s_S = $(CPP) $(a_flags) -o $@ $<
- $(obj)/%.s: $(src)/%.S FORCE
- $(call if_changed_dep,cpp_s_S)
- quiet_cmd_as_o_S = AS $(quiet_modtag) $@
- ifndef CONFIG_MODVERSIONS
- cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
- else
- ASM_PROTOTYPES := $(wildcard $(srctree)/arch/$(SRCARCH)/include/asm/asm-prototypes.h)
- ifeq ($(ASM_PROTOTYPES),)
- cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
- else
- # versioning matches the C process described above, with difference that
- # we parse asm-prototypes.h C header to get function definitions.
- cmd_as_o_S = $(CC) $(a_flags) -c -o $(@D)/.tmp_$(@F) $<
- cmd_modversions_S = \
- if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \
- $(call cmd_gensymtypes_S,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \
- > $(@D)/.tmp_$(@F:.o=.ver); \
- \
- $(LD) $(KBUILD_LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \
- -T $(@D)/.tmp_$(@F:.o=.ver); \
- rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver); \
- else \
- mv -f $(@D)/.tmp_$(@F) $@; \
- fi;
- endif
- endif
- $(obj)/%.o: $(src)/%.S $(objtool_dep) FORCE
- $(call if_changed_rule,as_o_S)
- targets += $(filter-out $(subdir-obj-y), $(real-obj-y)) $(real-obj-m) $(lib-y)
- targets += $(extra-y) $(MAKECMDGOALS) $(always)
- # Linker scripts preprocessor (.lds.S -> .lds)
- # ---------------------------------------------------------------------------
- quiet_cmd_cpp_lds_S = LDS $@
- cmd_cpp_lds_S = $(CPP) $(cpp_flags) -P -U$(ARCH) \
- -D__ASSEMBLY__ -DLINKER_SCRIPT -o $@ $<
- $(obj)/%.lds: $(src)/%.lds.S FORCE
- $(call if_changed_dep,cpp_lds_S)
- # ASN.1 grammar
- # ---------------------------------------------------------------------------
- quiet_cmd_asn1_compiler = ASN.1 $@
- cmd_asn1_compiler = $(objtree)/scripts/asn1_compiler $< \
- $(subst .h,.c,$@) $(subst .c,.h,$@)
- $(obj)/%.asn1.c $(obj)/%.asn1.h: $(src)/%.asn1 $(objtree)/scripts/asn1_compiler
- $(call cmd,asn1_compiler)
- # Build the compiled-in targets
- # ---------------------------------------------------------------------------
- # To build objects in subdirs, we need to descend into the directories
- $(sort $(subdir-obj-y)): $(subdir-ym) ;
- #
- # Rule to compile a set of .o files into one .o file
- #
- ifdef builtin-target
- # built-in.a archives are made with no symbol table or index which
- # makes them small and fast, but unable to be used by the linker.
- # scripts/link-vmlinux.sh builds an aggregate built-in.a with a symbol
- # table and index.
- quiet_cmd_ar_builtin = AR $@
- cmd_ar_builtin = rm -f $@; \
- $(AR) rcSTP$(KBUILD_ARFLAGS) $@ $(filter $(real-obj-y), $^)
- $(builtin-target): $(real-obj-y) FORCE
- $(call if_changed,ar_builtin)
- targets += $(builtin-target)
- endif # builtin-target
- #
- # Rule to create modules.order file
- #
- # Create commands to either record .ko file or cat modules.order from
- # a subdirectory
- modorder-cmds = \
- $(foreach m, $(modorder), \
- $(if $(filter %/modules.order, $m), \
- cat $m;, echo kernel/$m;))
- $(modorder-target): $(subdir-ym) FORCE
- $(Q)(cat /dev/null; $(modorder-cmds)) > $@
- #
- # Rule to compile a set of .o files into one .a file
- #
- ifdef lib-target
- quiet_cmd_link_l_target = AR $@
- # lib target archives do get a symbol table and index
- cmd_link_l_target = rm -f $@; $(AR) rcsTP$(KBUILD_ARFLAGS) $@ $(lib-y)
- $(lib-target): $(lib-y) FORCE
- $(call if_changed,link_l_target)
- targets += $(lib-target)
- dummy-object = $(obj)/.lib_exports.o
- ksyms-lds = $(dot-target).lds
- quiet_cmd_export_list = EXPORTS $@
- cmd_export_list = $(OBJDUMP) -h $< | \
- sed -ne '/___ksymtab/s/.*+\([^ ]*\).*/EXTERN(\1)/p' >$(ksyms-lds);\
- rm -f $(dummy-object);\
- echo | $(CC) $(a_flags) -c -o $(dummy-object) -x assembler -;\
- $(LD) $(ld_flags) -r -o $@ -T $(ksyms-lds) $(dummy-object);\
- rm $(dummy-object) $(ksyms-lds)
- $(obj)/lib-ksyms.o: $(lib-target) FORCE
- $(call if_changed,export_list)
- targets += $(obj)/lib-ksyms.o
- endif
- #
- # Rule to link composite objects
- #
- # Composite objects are specified in kbuild makefile as follows:
- # <composite-object>-objs := <list of .o files>
- # or
- # <composite-object>-y := <list of .o files>
- # or
- # <composite-object>-m := <list of .o files>
- # The -m syntax only works if <composite object> is a module
- link_multi_deps = \
- $(filter $(addprefix $(obj)/, \
- $($(subst $(obj)/,,$(@:.o=-objs))) \
- $($(subst $(obj)/,,$(@:.o=-y))) \
- $($(subst $(obj)/,,$(@:.o=-m)))), $^)
- quiet_cmd_link_multi-m = LD [M] $@
- cmd_link_multi-m = $(LD) $(ld_flags) -r -o $@ $(link_multi_deps) $(cmd_secanalysis)
- $(multi-used-m): FORCE
- $(call if_changed,link_multi-m)
- @{ echo $(@:.o=.ko); echo $(link_multi_deps); \
- $(cmd_undef_syms); } > $(MODVERDIR)/$(@F:.o=.mod)
- $(call multi_depend, $(multi-used-m), .o, -objs -y -m)
- targets += $(multi-used-m)
- targets := $(filter-out $(PHONY), $(targets))
- # Add intermediate targets:
- # When building objects with specific suffix patterns, add intermediate
- # targets that the final targets are derived from.
- intermediate_targets = $(foreach sfx, $(2), \
- $(patsubst %$(strip $(1)),%$(sfx), \
- $(filter %$(strip $(1)), $(targets))))
- # %.asn1.o <- %.asn1.[ch] <- %.asn1
- # %.dtb.o <- %.dtb.S <- %.dtb <- %.dts
- # %.lex.o <- %.lex.c <- %.l
- # %.tab.o <- %.tab.[ch] <- %.y
- targets += $(call intermediate_targets, .asn1.o, .asn1.c .asn1.h) \
- $(call intermediate_targets, .dtb.o, .dtb.S .dtb) \
- $(call intermediate_targets, .lex.o, .lex.c) \
- $(call intermediate_targets, .tab.o, .tab.c .tab.h)
- # Descending
- # ---------------------------------------------------------------------------
- PHONY += $(subdir-ym)
- $(subdir-ym):
- $(Q)$(MAKE) $(build)=$@ need-builtin=$(if $(findstring $@,$(subdir-obj-y)),1)
- # Add FORCE to the prequisites of a target to force it to be always rebuilt.
- # ---------------------------------------------------------------------------
- PHONY += FORCE
- FORCE:
- # Read all saved command lines and dependencies for the $(targets) we
- # may be building above, using $(if_changed{,_dep}). As an
- # optimization, we don't need to read them if the target does not
- # exist, we will rebuild anyway in that case.
- cmd_files := $(wildcard $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd))
- ifneq ($(cmd_files),)
- include $(cmd_files)
- endif
- ifneq ($(KBUILD_SRC),)
- # Create directories for object files if they do not exist
- obj-dirs := $(sort $(obj) $(patsubst %/,%, $(dir $(targets))))
- # If cmd_files exist, their directories apparently exist. Skip mkdir.
- exist-dirs := $(sort $(patsubst %/,%, $(dir $(cmd_files))))
- obj-dirs := $(strip $(filter-out $(exist-dirs), $(obj-dirs)))
- ifneq ($(obj-dirs),)
- $(shell mkdir -p $(obj-dirs))
- endif
- endif
- # Some files contained in $(targets) are intermediate artifacts.
- # We never want them to be removed automatically.
- .SECONDARY: $(targets)
- .PHONY: $(PHONY)
|