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# ===========================================================================
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# crosstool-NG configuration targets
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# These targets are used from top-level makefile
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# Derive the project version from, well, the project version:
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export PROJECTVERSION=$(CT_VERSION)
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#-----------------------------------------------------------
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# Some static /configuration/
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KCONFIG_TOP = config/config.in
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obj = kconfig
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PHONY += clean help oldconfig menuconfig defoldconfig
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#-----------------------------------------------------------
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# List all config files, source and generated
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# Build the list of all source config files
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STATIC_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(shell find $(CT_LIB_DIR)/config -type f -name '*.in' 2>/dev/null))
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# ... and how to access them:
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$(STATIC_CONFIG_FILES): config
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# Build a list of per-component-type source config files
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ARCH_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/arch/*.in))
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KERNEL_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/kernel/*.in))
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CC_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/cc/*.in))
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LIBC_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/libc/*.in))
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DEBUG_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/debug/*.in))
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TOOL_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/tools/*.in))
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# Build the list of generated config files
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GEN_CONFIG_FILES = config.gen/arch.in \
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config.gen/kernel.in \
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config.gen/cc.in \
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config.gen/libc.in \
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config.gen/tools.in \
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config.gen/debug.in
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# ... and how to access them:
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# Generated files depends on kconfig.mk (this file) because it has the
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# functions needed to build the genrated files, and thus they might
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# need re-generation if kconfig.mk changes
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$(GEN_CONFIG_FILES): config.gen \
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$(CT_LIB_DIR)/kconfig/kconfig.mk
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# KCONFIG_TOP should already be in STATIC_CONFIG_FILES, anyway...
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CONFIG_FILES = $(sort $(KCONFIG_TOP) $(STATIC_CONFIG_FILES) $(GEN_CONFIG_FILES))
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# Where to access to the source config files from
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config:
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@$(ECHO) " LN config"
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$(SILENT)ln -s $(CT_LIB_DIR)/config config
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# Where to store the generated config files into
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config.gen:
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@$(ECHO) " MKDIR config.gen"
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$(SILENT)mkdir -p config.gen
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#-----------------------------------------------------------
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# Build list of per-component-type items to easily build generated files
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ARCHS = $(patsubst config/arch/%.in,%,$(ARCH_CONFIG_FILES))
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KERNELS = $(patsubst config/kernel/%.in,%,$(KERNEL_CONFIG_FILES))
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CCS = $(patsubst config/cc/%.in,%,$(CC_CONFIG_FILES))
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LIBCS = $(patsubst config/libc/%.in,%,$(LIBC_CONFIG_FILES))
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DEBUGS = $(patsubst config/debug/%.in,%,$(DEBUG_CONFIG_FILES))
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TOOLS = $(patsubst config/tools/%.in,%,$(TOOL_CONFIG_FILES))
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#-----------------------------------------------------------
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# Helper functions to ease building generated config files
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# The function 'build_gen_choice_in' builds a choice-menu of a list of
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# components in the given list, also adding source-ing of associazted
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# config files:
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# $1 : destination file
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# $2 : name for the entries family (eg. Architecture, kernel...)
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# $3 : prefix for the choice entries (eg. ARCH, KERNEL...)
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# $4 : base directory containing config files
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# $5 : list of config entries (eg. for architectures: "alpha arm ia64"...,
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# and for kernels: "bare-metal linux"...)
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# Example to build the kernels generated config file:
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# $(call build_gen_choice_in,config.gen/kernel.in,Target OS,KERNEL,config/kernel,$(KERNELS))
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define build_gen_choice_in
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@$(ECHO) ' IN $(1)'
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$(SILENT)(echo "# $(2) menu"; \
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echo "# Generated file, do not edit!!!"; \
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echo ""; \
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echo "choice"; \
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echo " bool"; \
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echo " prompt \"$(2)\""; \
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echo ""; \
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for entry in $(5); do \
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file="$(4)/$${entry}.in"; \
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_entry=$$(echo "$${entry}" |sed -r -s -e 's/[-.+]/_/g;'); \
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echo "config $(3)_$${_entry}"; \
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echo " bool"; \
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printf " prompt \"$${entry}"; \
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if grep -E '^# +EXPERIMENTAL$$' $${file} >/dev/null 2>&1; then \
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echo " (EXPERIMENTAL)\""; \
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echo " depends on EXPERIMENTAL"; \
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else \
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echo "\""; \
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fi; \
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done; \
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echo ""; \
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echo "endchoice"; \
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for entry in $(5); do \
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file="$(4)/$${entry}.in"; \
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_entry=$$(echo "$${entry}" |sed -r -s -e 's/[-.+]/_/g;'); \
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echo ""; \
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echo "if $(3)_$${_entry}"; \
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echo "config $(3)"; \
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echo " default \"$${entry}\" if $(3)_$${_entry}"; \
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echo "source $${file}"; \
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echo "endif"; \
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done; \
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) >$(1)
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endef
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# The function 'build_gen_menu_in' builds a menuconfig for each component in
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# the given list, source-ing the associated files conditionnaly:
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# $1 : destination file
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# $2 : name of entries family (eg. Tools, Debug...)
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# $3 : prefix for the menu entries (eg. TOOL, DEBUG)
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# $4 : base directory containing config files
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# $5 : list of config entries (eg. for tools: "libelf sstrip"..., and for
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# debug: "dmalloc duma gdb"...)
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# Example to build the tools generated config file:
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# $(call build_gen_menu_in,config.gen/tools.in,Tools,TOOL,config/tools,$(TOOLS))
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define build_gen_menu_in
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@$(ECHO) ' IN $(1)'
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$(SILENT)(echo "# $(2) facilities menu"; \
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echo "# Generated file, do not edit!!!"; \
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echo ""; \
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yann@916
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for entry in $(5); do \
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file="$(4)/$${entry}.in"; \
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_entry=$$(echo "$${entry}" |sed -r -s -e 's/[-.+]/_/g;'); \
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echo "menuconfig $(3)_$${_entry}"; \
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echo " bool"; \
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printf " prompt \"$${entry}"; \
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if grep -E '^# +EXPERIMENTAL$$' $${file} >/dev/null 2>&1; then \
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echo " (EXPERIMENTAL)\""; \
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echo " depends on EXPERIMENTAL"; \
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else \
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echo "\""; \
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fi; \
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echo "if $(3)_$${_entry}"; \
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echo "source $${file}"; \
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echo "endif"; \
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echo ""; \
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done; \
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) >$(1)
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endef
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#-----------------------------------------------------------
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# The rules for the generated config files
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config.gen/arch.in: $(ARCH_CONFIG_FILES)
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$(call build_gen_choice_in,$@,Target Architecture,ARCH,config/arch,$(ARCHS))
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yann@861
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yann@926
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config.gen/kernel.in: $(KERNEL_CONFIG_FILES)
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$(call build_gen_choice_in,$@,Target OS,KERNEL,config/kernel,$(KERNELS))
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yann@182
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yann@926
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config.gen/cc.in: $(CC_CONFIG_FILES)
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$(call build_gen_choice_in,$@,C compiler,CC,config/cc,$(CCS))
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yann@926
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yann@926
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config.gen/libc.in: $(LIBC_CONFIG_FILES)
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$(call build_gen_choice_in,$@,C library,LIBC,config/libc,$(LIBCS))
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yann@926
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yann@926
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config.gen/tools.in: $(TOOL_CONFIG_FILES)
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$(call build_gen_menu_in,$@,Tools,TOOL,config/tools,$(TOOLS))
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yann@926
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config.gen/debug.in: $(DEBUG_CONFIG_FILES)
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$(call build_gen_menu_in,$@,Debug,DEBUG,config/debug,$(DEBUGS))
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yann@926
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#-----------------------------------------------------------
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yann@926
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# The configurators rules
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yann@940
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menuconfig: $(obj)/mconf $(CONFIG_FILES)
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yann@940
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$(SILENT)$< $(KCONFIG_TOP)
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yann@1
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yann@942
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oldconfig: $(obj)/conf .config $(CONFIG_FILES)
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yann@940
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$(SILENT)$< -s $(KCONFIG_TOP)
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yann@1
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yann@942
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defoldconfig: $(obj)/conf .config $(CONFIG_FILES)
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yann@940
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$(SILENT)yes "" |$< -s $(KCONFIG_TOP)
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yann@159
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yann@926
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#-----------------------------------------------------------
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yann@1
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# Help text used by make help
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yann@926
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yann@176
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help-config::
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yann@333
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@echo ' menuconfig - Update current config using a menu based program'
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yann@333
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@echo ' oldconfig - Update current config using a provided .config as base'
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yann@940
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@echo ' defoldconfig - As oldconfig, above, but using defaults for new options'
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yann@1
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yann@926
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#-----------------------------------------------------------
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yann@940
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# Hmmm! Cheesy build!
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yann@940
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# Or: where I can unveil my make-fu... :-]
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yann@1
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yann@940
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# Oh! Files not here are there, in fact! :-)
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yann@940
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vpath %.c $(CT_LIB_DIR)
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yann@940
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vpath %.h $(CT_LIB_DIR)
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yann@1
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yann@940
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# What is the compiler?
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yann@940
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HOST_CC ?= gcc -funsigned-char
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yann@182
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yann@943
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# Compiler flags to use gettext
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yann@943
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EXTRA_CFLAGS += $(shell $(SHELL) $(CT_LIB_DIR)/kconfig/check-gettext.sh $(HOST_CC) $(CFLAGS))
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yann@943
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yann@940
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# Compiler and linker flags to use ncurses
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EXTRA_CFLAGS += $(shell $(SHELL) $(CT_LIB_DIR)/kconfig/lxdialog/check-lxdialog.sh -ccflags)
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yann@943
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EXTRA_LDFLAGS += $(shell $(SHELL) $(CT_LIB_DIR)/kconfig/lxdialog/check-lxdialog.sh -ldflags $(HOST_CC))
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yann@182
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yann@940
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# Common source files, and lxdialog source files
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yann@940
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SRC = kconfig/zconf.tab.c
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yann@940
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LXSRC = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/kconfig/lxdialog/*.c))
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yann@816
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yann@940
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# What's needed to build 'conf'
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yann@940
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conf_SRC = $(SRC) kconfig/conf.c
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yann@940
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conf_OBJ = $(patsubst %.c,%.o,$(conf_SRC))
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yann@816
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yann@940
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# What's needed to build 'mconf'
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yann@940
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mconf_SRC = $(SRC) $(LXSRC) kconfig/mconf.c
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yann@940
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mconf_OBJ = $(patsubst %.c,%.o,$(mconf_SRC))
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yann@1
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yann@940
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225 |
# Cheesy auto-dependencies
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yann@940
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226 |
DEPS = $(patsubst %.c,%.d,$(sort $(conf_SRC) $(mconf_SRC)))
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yann@940
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yann@940
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# This is not very nice, as they will get rebuild even if (dist)cleaning... :-(
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yann@940
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# Should look into the Linux kernel Kbuild to see how they do that...
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yann@940
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# To really make me look into this, keep the annoying "DEP xxx" messages.
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yann@940
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231 |
# Also see the comment for the "%.o: %c" rule below
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yann@940
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232 |
%.d: %.c $(CT_LIB_DIR)/kconfig/kconfig.mk
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yann@940
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233 |
$(SILENT)if [ ! -d $(obj)/lxdialog ]; then \
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yann@940
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234 |
$(ECHO) " MKDIR $(obj)"; \
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yann@940
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235 |
mkdir -p $(obj)/lxdialog; \
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yann@940
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236 |
fi
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yann@940
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237 |
@$(ECHO) " DEP $@"
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yann@943
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$(SILENT)$(HOST_CC) $(CFLAGS) $(EXTRA_CFLAGS) -MM $< |sed -r -e 's|([^:]+.o)( *:+)|$(<:.c=.o) $@\2|;' >$@
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yann@940
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239 |
-include $(DEPS)
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yann@940
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240 |
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yann@940
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241 |
# Each .o must depend on the corresponding .c (obvious, isn't it?),
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yann@940
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242 |
# but *can not* depend on kconfig/, because kconfig can be touched
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yann@940
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243 |
# during the build (who's touching it, btw?) so each .o would be
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yann@940
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# re-built when they sould not be.
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yann@940
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245 |
# So manually check for presence of $(obj) (ie. kconfig), and only mkdir
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yann@940
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# if needed. After all, that's not so bad...
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yann@940
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247 |
# mkdir $(obj)/lxdialog, because we need it, and incidentally, that
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yann@940
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248 |
# also creates $(obj).
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yann@940
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249 |
# Also rebuild the object files is the makefile is changed
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yann@940
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250 |
%.o: %.c $(CT_LIB_DIR)/kconfig/kconfig.mk
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yann@940
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251 |
$(SILENT)if [ ! -d $(obj)/lxdialog ]; then \
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yann@940
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252 |
$(ECHO) " MKDIR $(obj)"; \
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yann@940
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253 |
mkdir -p $(obj)/lxdialog; \
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yann@940
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254 |
fi
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yann@940
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255 |
@$(ECHO) " CC $@"
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yann@943
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$(SILENT)$(HOST_CC) $(CFLAGS) $(EXTRA_CFLAGS) -o $@ -c $<
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yann@940
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yann@940
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258 |
$(obj)/mconf: $(mconf_OBJ)
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yann@940
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259 |
@$(ECHO) ' LD $@'
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yann@943
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260 |
$(SILENT)$(HOST_CC) $(CFLAGS) $(EXTRA_CFLAGS) $(LDFLAGS) $(EXTRA_LDFLAGS) -o $@ $^
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yann@940
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yann@940
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262 |
$(obj)/conf: $(conf_OBJ)
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yann@940
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263 |
@$(ECHO) ' LD $@'
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yann@943
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264 |
$(SILENT)$(HOST_CC) $(CFLAGS) $(EXTRA_CFLAGS) $(LDFLAGS) $(EXTRA_LDFLAGS) -o $@ $^
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yann@1
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yann@926
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#-----------------------------------------------------------
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yann@926
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267 |
# Cleaning up the mess...
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yann@926
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268 |
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yann@1
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clean::
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yann@940
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270 |
@$(ECHO) " CLEAN kconfig"
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yann@940
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271 |
$(SILENT)rm -f kconfig/{,m}conf $(conf_OBJ) $(mconf_OBJ) $(DEPS)
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yann@940
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272 |
$(SILENT)rmdir --ignore-fail-on-non-empty kconfig{/lxdialog,} 2>/dev/null || true
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yann@940
|
273 |
@$(ECHO) " CLEAN config"
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yann@940
|
274 |
$(SILENT)rm -f config 2>/dev/null || true
|
yann@940
|
275 |
@$(ECHO) " CLEAN config.gen"
|
yann@940
|
276 |
$(SILENT)rm -rf config.gen
|