# =========================================================================== # crosstool-NG genererated config files # These targets are used from top-level makefile #----------------------------------------------------------- # List all config files, wether sourced or generated # The top-level config file to be used be configurators KCONFIG_TOP = config/config.in # Build the list of all source config files STATIC_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(shell find $(CT_LIB_DIR)/config -type f \( -name '*.in' -o -name '*.in.2' \) 2>/dev/null)) # ... and how to access them: $(STATIC_CONFIG_FILES): config # Build a list of per-component-type source config files ARCH_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/arch/*.in)) ARCH_CONFIG_FILES_2 = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/arch/*.in.2)) KERNEL_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/kernel/*.in)) KERNEL_CONFIG_FILES_2 = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/kernel/*.in.2)) CC_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/cc/*.in)) CC_CONFIG_FILES_2 = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/cc/*.in.2)) LIBC_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/libc/*.in)) LIBC_CONFIG_FILES_2 = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/libc/*.in.2)) DEBUG_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/debug/*.in)) # Build the list of generated config files GEN_CONFIG_FILES = config.gen/arch.in \ config.gen/kernel.in \ config.gen/cc.in \ config.gen/libc.in \ config.gen/debug.in # ... and how to access them: # Generated files depends on config.mk (this file) because it has the # functions needed to build the genrated files, and thus they might # need re-generation if config.mk changes $(GEN_CONFIG_FILES): config.gen \ $(CT_LIB_DIR)/config/config.mk # Helper entry for the configurators PHONY += config_files config_files: $(STATIC_CONFIG_FILES) $(GEN_CONFIG_FILES) # Where to access to the source config files from config: @$(ECHO) " LN config" $(SILENT)ln -s $(CT_LIB_DIR)/config config # Where to store the generated config files into config.gen: @$(ECHO) " MKDIR config.gen" $(SILENT)mkdir -p config.gen #----------------------------------------------------------- # Build list of per-component-type items to easily build generated files ARCHS = $(patsubst config/arch/%.in,%,$(ARCH_CONFIG_FILES)) KERNELS = $(patsubst config/kernel/%.in,%,$(KERNEL_CONFIG_FILES)) CCS = $(patsubst config/cc/%.in,%,$(CC_CONFIG_FILES)) LIBCS = $(patsubst config/libc/%.in,%,$(LIBC_CONFIG_FILES)) DEBUGS = $(patsubst config/debug/%.in,%,$(DEBUG_CONFIG_FILES)) #----------------------------------------------------------- # Helper functions to ease building generated config files # The function 'build_gen_choice_in' builds a choice-menu of a list of # components in the given list, also adding source-ing of associazted # config files: # $1 : destination file # $2 : name for the entries family (eg. Architecture, kernel...) # $3 : prefix for the choice entries (eg. ARCH, KERNEL...) # $4 : base directory containing config files # $5 : generate backend conditionals if Y, don't if anything else # $6 : list of config entries (eg. for architectures: "alpha arm ia64"..., # and for kernels: "bare-metal linux"...) # Example to build the kernels generated config file: # $(call build_gen_choice_in,config.gen/kernel.in,Target OS,KERNEL,config/kernel,$(KERNELS)) define build_gen_choice_in @$(ECHO) ' IN $(1)' $(SILENT)(echo "# $(2) menu"; \ echo "# Generated file, do not edit!!!"; \ echo ""; \ echo "choice"; \ echo " bool"; \ echo " prompt \"$(2)\""; \ echo ""; \ for entry in $(6); do \ file="$(4)/$${entry}.in"; \ _entry=$$(echo "$${entry}" |$(sed) -r -s -e 's/[-.+]/_/g;'); \ echo "config $(3)_$${_entry}"; \ echo " bool"; \ echo " prompt \"$${entry}\""; \ dep_val=$$($(grep) -E '^# depends on ' $${file} 2>/dev/null); \ if [ -n "$${dep_val}" ]; then \ echo " $${dep_val#\# }"; \ fi; \ if [ "$(5)" = "Y" ]; then \ echo " depends on $(3)_$${_entry}_AVAILABLE"; \ fi; \ echo ""; \ done; \ echo "endchoice"; \ for entry in $(6); do \ file="$(4)/$${entry}.in"; \ _entry=$$(echo "$${entry}" |$(sed) -r -s -e 's/[-.+]/_/g;'); \ echo ""; \ if [ "$(5)" = "Y" ]; then \ echo "config $(3)_$${_entry}_AVAILABLE"; \ echo " bool"; \ echo " default n if ! ( BACKEND_$(3) = \"$${entry}\" || BACKEND_$(3) = \"\" || ! BACKEND )"; \ echo " default y if BACKEND_$(3) = \"$${entry}\" || BACKEND_$(3) = \"\" || ! BACKEND"; \ fi; \ echo "if $(3)_$${_entry}"; \ echo "config $(3)"; \ echo " default \"$${entry}\" if $(3)_$${_entry}"; \ echo "source \"$${file}\""; \ echo "endif"; \ done; \ echo ""; \ for file in $(wildcard $(4)/*.in-common); do \ echo "source \"$${file}\""; \ done; \ ) >$(1) $(SILENT)(echo "# $(2) second part options"; \ echo "# Generated file, do not edit!!!"; \ for entry in $(6); do \ file="$(4)/$${entry}.in"; \ _entry=$$(echo "$${entry}" |$(sed) -r -s -e 's/[-.+]/_/g;'); \ if [ -f "$${file}.2" ]; then \ echo ""; \ echo "if $(3)_$${_entry}"; \ echo "comment \"$${entry} other options\""; \ echo "source \"$${file}.2\""; \ echo "endif"; \ fi; \ done; \ ) >$(1).2 endef # The function 'build_gen_menu_in' builds a menuconfig for each component in # the given list, source-ing the associated files conditionnaly: # $1 : destination file # $2 : name of entries family (eg. Tools, Debug...) # $3 : prefix for the menu entries (eg. DEBUG) # $4 : base directory containing config files # $5 : list of config entries (eg. for debug: "dmalloc duma gdb"...) # Example to build the generated debug config file: # $(call build_gen_menu_in,config.gen/debug.in,Debug,DEBUG,config/debug,$(DEBUGS)) define build_gen_menu_in @$(ECHO) ' IN $(1)' $(SILENT)(echo "# $(2) facilities menu"; \ echo "# Generated file, do not edit!!!"; \ echo ""; \ for entry in $(5); do \ file="$(4)/$${entry}.in"; \ _entry=$$(echo "$${entry}" |$(sed) -r -s -e 's/[-.+]/_/g;'); \ echo "menuconfig $(3)_$${_entry}"; \ echo " bool"; \ echo " prompt \"$${entry}\""; \ dep_val=$$($(grep) -E '^# depends on ' $${file} 2>/dev/null); \ if [ -n "$${dep_val}" ]; then \ echo " $${dep_val#\# }"; \ fi; \ echo "if $(3)_$${_entry}"; \ echo "source \"$${file}\""; \ echo "endif"; \ echo ""; \ done; \ ) >$(1) endef #----------------------------------------------------------- # The rules for the generated config files # WARNING! If a .in file disapears between two runs, that will NOT be detected! config.gen/arch.in: $(ARCH_CONFIG_FILES) $(ARCH_CONFIG_FILES_2) $(call build_gen_choice_in,$@,Target Architecture,ARCH,config/arch,Y,$(ARCHS)) config.gen/kernel.in: $(KERNEL_CONFIG_FILES) $(KERNEL_CONFIG_FILES_2) $(call build_gen_choice_in,$@,Target OS,KERNEL,config/kernel,Y,$(KERNELS)) config.gen/cc.in: $(CC_CONFIG_FILES) $(CC_CONFIG_FILES_2) $(call build_gen_choice_in,$@,C compiler,CC,config/cc,,$(CCS)) config.gen/libc.in: $(LIBC_CONFIG_FILES) $(LIBC_CONFIG_FILES_2) $(call build_gen_choice_in,$@,C library,LIBC,config/libc,Y,$(LIBCS)) config.gen/debug.in: $(DEBUG_CONFIG_FILES) $(call build_gen_menu_in,$@,Debug,DEBUG,config/debug,$(DEBUGS)) #----------------------------------------------------------- # Cleaning up the mess... clean:: @$(ECHO) " CLEAN config" $(SILENT)rm -f config 2>/dev/null || true @$(ECHO) " CLEAN config.gen" $(SILENT)rm -rf config.gen