build: support building host tools
To speed up builds, this change allows building the needed host tools that are built for every application and stores them un ${ZEPHYR_BASE}/bin. Run 'make host-tools' and then define PREBUILT_HOST_TOOLS to reuse the host tools across multiple builds. $ make host-tools HOSTCC scripts/basic/fixdep HOSTCC scripts/gen_idt/version.o HOSTCC scripts/gen_idt/gen_idt.o HOSTLD scripts/gen_idt/gen_idt HOSTCC scripts/gen_offset_header/gen_offset_header.o HOSTLD scripts/gen_offset_header/gen_offset_header HOSTCC scripts/kconfig/conf.o SHIPPED scripts/kconfig/zconf.tab.c SHIPPED scripts/kconfig/zconf.lex.c SHIPPED scripts/kconfig/zconf.hash.c HOSTCC scripts/kconfig/zconf.tab.o HOSTLD scripts/kconfig/conf $ export PREBUILT_HOST_TOOLS=${ZEPHYR_BASE}/bin $ make -C samples/hello_world Now you will notice a speedup when building the application! Change-Id: Ie0aeee7f9a60b1fd49e7e32d78601f03473d73b8 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
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2 changed files with 15 additions and 2 deletions
15
Makefile
15
Makefile
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@ -478,7 +478,7 @@ endif
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version_h := include/generated/version.h
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no-dot-config-targets := pristine distclean clean mrproper help kconfig-help \
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no-dot-config-targets := pristine distclean clean mrproper help kconfig-help host-tools \
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cscope gtags TAGS tags help% %docs check% \
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$(version_h) headers_% kernelversion %src-pkg
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@ -1065,7 +1065,7 @@ CLEAN_FILES += include/generated/generated_dts_board.h \
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*.bin *.hex *.stat *.strip staticIdt.o linker.cmd
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# Directories & files removed with 'make mrproper'
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MRPROPER_DIRS += include/config usr/include include/generated \
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MRPROPER_DIRS += bin include/config usr/include include/generated \
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arch/*/include/generated .tmp_objdiff
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MRPROPER_FILES += .config .config.old .version $(version_h) \
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Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
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@ -1193,6 +1193,17 @@ $(help-board-dirs): help-%:
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echo '')
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host-tools:
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$(Q)$(MAKE) $(build)=scripts/kconfig standalone
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$(Q)$(MAKE) $(build)=scripts/basic
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$(Q)$(MAKE) $(build)=scripts/gen_idt
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$(Q)$(MAKE) $(build)=scripts/gen_offset_header
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@mkdir -p ${ZEPHYR_BASE}/bin
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@cp scripts/basic/fixdep scripts/gen_idt/gen_idt scripts/kconfig/conf \
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scripts/gen_offset_header/gen_offset_header ${ZEPHYR_BASE}/bin
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# Documentation targets
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# ---------------------------------------------------------------------------
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%docs: FORCE
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@ -34,6 +34,8 @@ gconfig: $(KCONFIG_BIN_PATH)/gconf
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menuconfig: $(KCONFIG_BIN_PATH)/mconf
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$< $(Kconfig)
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standalone: $(obj)/conf
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config: $(KCONFIG_BIN_PATH)/conf
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$< --oldaskconfig $(Kconfig)
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