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kbuild: import more build scripts from Linux v3.13 tag
This commit imports build scripts from Linux Kernel v3.13 as they are. I know they include some trailing spaces but I am intentionally keeping them untouched. Signed-off-by: Masahiro Yamada <[email protected]>
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,104 @@ | ||
| # ========================================================================== | ||
| # Cleaning up | ||
| # ========================================================================== | ||
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| src := $(obj) | ||
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| PHONY := __clean | ||
| __clean: | ||
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| # Shorthand for $(Q)$(MAKE) scripts/Makefile.clean obj=dir | ||
| # Usage: | ||
| # $(Q)$(MAKE) $(clean)=dir | ||
| clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj | ||
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| # The filename Kbuild has precedence over Makefile | ||
| kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src)) | ||
| include $(if $(wildcard $(kbuild-dir)/Kbuild), $(kbuild-dir)/Kbuild, $(kbuild-dir)/Makefile) | ||
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| # Figure out what we need to build from the various variables | ||
| # ========================================================================== | ||
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| __subdir-y := $(patsubst %/,%,$(filter %/, $(obj-y))) | ||
| subdir-y += $(__subdir-y) | ||
| __subdir-m := $(patsubst %/,%,$(filter %/, $(obj-m))) | ||
| subdir-m += $(__subdir-m) | ||
| __subdir-n := $(patsubst %/,%,$(filter %/, $(obj-n))) | ||
| subdir-n += $(__subdir-n) | ||
| __subdir- := $(patsubst %/,%,$(filter %/, $(obj-))) | ||
| subdir- += $(__subdir-) | ||
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| # Subdirectories we need to descend into | ||
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| subdir-ym := $(sort $(subdir-y) $(subdir-m)) | ||
| subdir-ymn := $(sort $(subdir-ym) $(subdir-n) $(subdir-)) | ||
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| # Add subdir path | ||
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| subdir-ymn := $(addprefix $(obj)/,$(subdir-ymn)) | ||
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| # build a list of files to remove, usually relative to the current | ||
| # directory | ||
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| __clean-files := $(extra-y) $(always) \ | ||
| $(targets) $(clean-files) \ | ||
| $(host-progs) \ | ||
| $(hostprogs-y) $(hostprogs-m) $(hostprogs-) | ||
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| __clean-files := $(filter-out $(no-clean-files), $(__clean-files)) | ||
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| # as clean-files is given relative to the current directory, this adds | ||
| # a $(obj) prefix, except for absolute paths | ||
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| __clean-files := $(wildcard \ | ||
| $(addprefix $(obj)/, $(filter-out /%, $(__clean-files))) \ | ||
| $(filter /%, $(__clean-files))) | ||
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| # as clean-dirs is given relative to the current directory, this adds | ||
| # a $(obj) prefix, except for absolute paths | ||
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| __clean-dirs := $(wildcard \ | ||
| $(addprefix $(obj)/, $(filter-out /%, $(clean-dirs))) \ | ||
| $(filter /%, $(clean-dirs))) | ||
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| # ========================================================================== | ||
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| quiet_cmd_clean = CLEAN $(obj) | ||
| cmd_clean = rm -f $(__clean-files) | ||
| quiet_cmd_cleandir = CLEAN $(__clean-dirs) | ||
| cmd_cleandir = rm -rf $(__clean-dirs) | ||
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| __clean: $(subdir-ymn) | ||
| ifneq ($(strip $(__clean-files)),) | ||
| +$(call cmd,clean) | ||
| endif | ||
| ifneq ($(strip $(__clean-dirs)),) | ||
| +$(call cmd,cleandir) | ||
| endif | ||
| ifneq ($(strip $(clean-rule)),) | ||
| +$(clean-rule) | ||
| endif | ||
| @: | ||
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| # =========================================================================== | ||
| # Generic stuff | ||
| # =========================================================================== | ||
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| # Descending | ||
| # --------------------------------------------------------------------------- | ||
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| PHONY += $(subdir-ymn) | ||
| $(subdir-ymn): | ||
| $(Q)$(MAKE) $(clean)=$@ | ||
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| # If quiet is set, only print short version of command | ||
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| cmd = @$(if $($(quiet)cmd_$(1)),echo ' $($(quiet)cmd_$(1))' &&) $(cmd_$(1)) | ||
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| # Declare the contents of the .PHONY variable as phony. We keep that | ||
| # information in a variable se we can use it in if_changed and friends. | ||
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| .PHONY: $(PHONY) |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,170 @@ | ||
| # ========================================================================== | ||
| # Building binaries on the host system | ||
| # Binaries are used during the compilation of the kernel, for example | ||
| # to preprocess a data file. | ||
| # | ||
| # Both C and C++ are supported, but preferred language is C for such utilities. | ||
| # | ||
| # Sample syntax (see Documentation/kbuild/makefiles.txt for reference) | ||
| # hostprogs-y := bin2hex | ||
| # Will compile bin2hex.c and create an executable named bin2hex | ||
| # | ||
| # hostprogs-y := lxdialog | ||
| # lxdialog-objs := checklist.o lxdialog.o | ||
| # Will compile lxdialog.c and checklist.c, and then link the executable | ||
| # lxdialog, based on checklist.o and lxdialog.o | ||
| # | ||
| # hostprogs-y := qconf | ||
| # qconf-cxxobjs := qconf.o | ||
| # qconf-objs := menu.o | ||
| # Will compile qconf as a C++ program, and menu as a C program. | ||
| # They are linked as C++ code to the executable qconf | ||
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| # hostprogs-y := conf | ||
| # conf-objs := conf.o libkconfig.so | ||
| # libkconfig-objs := expr.o type.o | ||
| # Will create a shared library named libkconfig.so that consists of | ||
| # expr.o and type.o (they are both compiled as C code and the object files | ||
| # are made as position independent code). | ||
| # conf.c is compiled as a C program, and conf.o is linked together with | ||
| # libkconfig.so as the executable conf. | ||
| # Note: Shared libraries consisting of C++ files are not supported | ||
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| __hostprogs := $(sort $(hostprogs-y) $(hostprogs-m)) | ||
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| # C code | ||
| # Executables compiled from a single .c file | ||
| host-csingle := $(foreach m,$(__hostprogs),$(if $($(m)-objs),,$(m))) | ||
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| # C executables linked based on several .o files | ||
| host-cmulti := $(foreach m,$(__hostprogs),\ | ||
| $(if $($(m)-cxxobjs),,$(if $($(m)-objs),$(m)))) | ||
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| # Object (.o) files compiled from .c files | ||
| host-cobjs := $(sort $(foreach m,$(__hostprogs),$($(m)-objs))) | ||
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| # C++ code | ||
| # C++ executables compiled from at least on .cc file | ||
| # and zero or more .c files | ||
| host-cxxmulti := $(foreach m,$(__hostprogs),$(if $($(m)-cxxobjs),$(m))) | ||
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| # C++ Object (.o) files compiled from .cc files | ||
| host-cxxobjs := $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs))) | ||
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| # Shared libaries (only .c supported) | ||
| # Shared libraries (.so) - all .so files referenced in "xxx-objs" | ||
| host-cshlib := $(sort $(filter %.so, $(host-cobjs))) | ||
| # Remove .so files from "xxx-objs" | ||
| host-cobjs := $(filter-out %.so,$(host-cobjs)) | ||
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| #Object (.o) files used by the shared libaries | ||
| host-cshobjs := $(sort $(foreach m,$(host-cshlib),$($(m:.so=-objs)))) | ||
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| # output directory for programs/.o files | ||
| # hostprogs-y := tools/build may have been specified. Retrieve directory | ||
| host-objdirs := $(foreach f,$(__hostprogs), $(if $(dir $(f)),$(dir $(f)))) | ||
| # directory of .o files from prog-objs notation | ||
| host-objdirs += $(foreach f,$(host-cmulti), \ | ||
| $(foreach m,$($(f)-objs), \ | ||
| $(if $(dir $(m)),$(dir $(m))))) | ||
| # directory of .o files from prog-cxxobjs notation | ||
| host-objdirs += $(foreach f,$(host-cxxmulti), \ | ||
| $(foreach m,$($(f)-cxxobjs), \ | ||
| $(if $(dir $(m)),$(dir $(m))))) | ||
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| host-objdirs := $(strip $(sort $(filter-out ./,$(host-objdirs)))) | ||
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| __hostprogs := $(addprefix $(obj)/,$(__hostprogs)) | ||
| host-csingle := $(addprefix $(obj)/,$(host-csingle)) | ||
| host-cmulti := $(addprefix $(obj)/,$(host-cmulti)) | ||
| host-cobjs := $(addprefix $(obj)/,$(host-cobjs)) | ||
| host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti)) | ||
| host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs)) | ||
| host-cshlib := $(addprefix $(obj)/,$(host-cshlib)) | ||
| host-cshobjs := $(addprefix $(obj)/,$(host-cshobjs)) | ||
| host-objdirs := $(addprefix $(obj)/,$(host-objdirs)) | ||
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| obj-dirs += $(host-objdirs) | ||
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| ##### | ||
| # Handle options to gcc. Support building with separate output directory | ||
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| _hostc_flags = $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) \ | ||
| $(HOSTCFLAGS_$(basetarget).o) | ||
| _hostcxx_flags = $(HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \ | ||
| $(HOSTCXXFLAGS_$(basetarget).o) | ||
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| ifeq ($(KBUILD_SRC),) | ||
| __hostc_flags = $(_hostc_flags) | ||
| __hostcxx_flags = $(_hostcxx_flags) | ||
| else | ||
| __hostc_flags = -I$(obj) $(call flags,_hostc_flags) | ||
| __hostcxx_flags = -I$(obj) $(call flags,_hostcxx_flags) | ||
| endif | ||
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| hostc_flags = -Wp,-MD,$(depfile) $(__hostc_flags) | ||
| hostcxx_flags = -Wp,-MD,$(depfile) $(__hostcxx_flags) | ||
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| ##### | ||
| # Compile programs on the host | ||
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| # Create executable from a single .c file | ||
| # host-csingle -> Executable | ||
| quiet_cmd_host-csingle = HOSTCC $@ | ||
| cmd_host-csingle = $(HOSTCC) $(hostc_flags) -o $@ $< \ | ||
| $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F)) | ||
| $(host-csingle): $(obj)/%: $(src)/%.c FORCE | ||
| $(call if_changed_dep,host-csingle) | ||
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| # Link an executable based on list of .o files, all plain c | ||
| # host-cmulti -> executable | ||
| quiet_cmd_host-cmulti = HOSTLD $@ | ||
| cmd_host-cmulti = $(HOSTCC) $(HOSTLDFLAGS) -o $@ \ | ||
| $(addprefix $(obj)/,$($(@F)-objs)) \ | ||
| $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F)) | ||
| $(host-cmulti): $(obj)/%: $(host-cobjs) $(host-cshlib) FORCE | ||
| $(call if_changed,host-cmulti) | ||
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| # Create .o file from a single .c file | ||
| # host-cobjs -> .o | ||
| quiet_cmd_host-cobjs = HOSTCC $@ | ||
| cmd_host-cobjs = $(HOSTCC) $(hostc_flags) -c -o $@ $< | ||
| $(host-cobjs): $(obj)/%.o: $(src)/%.c FORCE | ||
| $(call if_changed_dep,host-cobjs) | ||
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| # Link an executable based on list of .o files, a mixture of .c and .cc | ||
| # host-cxxmulti -> executable | ||
| quiet_cmd_host-cxxmulti = HOSTLD $@ | ||
| cmd_host-cxxmulti = $(HOSTCXX) $(HOSTLDFLAGS) -o $@ \ | ||
| $(foreach o,objs cxxobjs,\ | ||
| $(addprefix $(obj)/,$($(@F)-$(o)))) \ | ||
| $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F)) | ||
| $(host-cxxmulti): $(obj)/%: $(host-cobjs) $(host-cxxobjs) $(host-cshlib) FORCE | ||
| $(call if_changed,host-cxxmulti) | ||
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| # Create .o file from a single .cc (C++) file | ||
| quiet_cmd_host-cxxobjs = HOSTCXX $@ | ||
| cmd_host-cxxobjs = $(HOSTCXX) $(hostcxx_flags) -c -o $@ $< | ||
| $(host-cxxobjs): $(obj)/%.o: $(src)/%.cc FORCE | ||
| $(call if_changed_dep,host-cxxobjs) | ||
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| # Compile .c file, create position independent .o file | ||
| # host-cshobjs -> .o | ||
| quiet_cmd_host-cshobjs = HOSTCC -fPIC $@ | ||
| cmd_host-cshobjs = $(HOSTCC) $(hostc_flags) -fPIC -c -o $@ $< | ||
| $(host-cshobjs): $(obj)/%.o: $(src)/%.c FORCE | ||
| $(call if_changed_dep,host-cshobjs) | ||
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| # Link a shared library, based on position independent .o files | ||
| # *.o -> .so shared library (host-cshlib) | ||
| quiet_cmd_host-cshlib = HOSTLLD -shared $@ | ||
| cmd_host-cshlib = $(HOSTCC) $(HOSTLDFLAGS) -shared -o $@ \ | ||
| $(addprefix $(obj)/,$($(@F:.so=-objs))) \ | ||
| $(HOST_LOADLIBES) $(HOSTLOADLIBES_$(@F)) | ||
| $(host-cshlib): $(obj)/%: $(host-cshobjs) FORCE | ||
| $(call if_changed,host-cshlib) | ||
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| targets += $(host-csingle) $(host-cmulti) $(host-cobjs)\ | ||
| $(host-cxxmulti) $(host-cxxobjs) $(host-cshlib) $(host-cshobjs) | ||
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