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43ca5b4095
Some components have configuration options that can depend on generic options, so they should go below those. uClibc for example: - has its own options (wchar...) - uses the generic options (threads...) - if linuxthreads chosen, offers two impls So we need to be able to split the components options in 2, one part that is above the generic options, and one part that ends up below the generic options.
200 lines
11 KiB
Makefile
200 lines
11 KiB
Makefile
# ===========================================================================
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# crosstool-NG genererated config files
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# These targets are used from top-level makefile
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#-----------------------------------------------------------
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# List all config files, wether sourced or generated
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# The top-level config file to be used be configurators
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KCONFIG_TOP = config/config.in
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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 \( -name '*.in' -o -name '*.in.2' \) 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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ARCH_CONFIG_FILES_2 = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/arch/*.in.2))
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KERNEL_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/kernel/*.in))
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KERNEL_CONFIG_FILES_2 = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/kernel/*.in.2))
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CC_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/cc/*.in))
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CC_CONFIG_FILES_2 = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/cc/*.in.2))
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LIBC_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/libc/*.in))
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LIBC_CONFIG_FILES_2 = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/libc/*.in.2))
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DEBUG_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/debug/*.in))
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# Build the list of generated config files
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GEN_CONFIG_FILES = config.gen/arch.in \
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config.gen/kernel.in \
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config.gen/cc.in \
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config.gen/libc.in \
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config.gen/debug.in
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# ... and how to access them:
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# Generated files depends on config.mk (this file) because it has the
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# functions needed to build the genrated files, and thus they might
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# need re-generation if config.mk changes
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$(GEN_CONFIG_FILES): config.gen \
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$(CT_LIB_DIR)/config/config.mk
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# Helper entry for the configurators
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PHONY += config_files
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config_files: $(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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#-----------------------------------------------------------
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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 : generate backend conditionals if Y, don't if anything else
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# $6 : 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 $(6); do \
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file="$(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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echo " prompt \"$${entry}\""; \
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dep_val=$$($(grep) -E '^# depends on ' $${file} 2>/dev/null); \
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if [ -n "$${dep_val}" ]; then \
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echo " $${dep_val#\# }"; \
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fi; \
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if [ "$(5)" = "Y" ]; then \
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echo " depends on $(3)_$${_entry}_AVAILABLE"; \
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fi; \
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echo ""; \
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done; \
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echo "endchoice"; \
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for entry in $(6); do \
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file="$(4)/$${entry}.in"; \
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_entry=$$(echo "$${entry}" |$(sed) -r -s -e 's/[-.+]/_/g;'); \
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echo ""; \
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if [ "$(5)" = "Y" ]; then \
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echo "config $(3)_$${_entry}_AVAILABLE"; \
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echo " bool"; \
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echo " default n if ! ( BACKEND_$(3) = \"$${entry}\" || BACKEND_$(3) = \"\" || ! BACKEND )"; \
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echo " default y if BACKEND_$(3) = \"$${entry}\" || BACKEND_$(3) = \"\" || ! BACKEND"; \
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fi; \
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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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echo ""; \
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for file in $(wildcard $(4)/*.in-common); do \
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echo "source \"$${file}\""; \
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done; \
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) >$(1)
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$(SILENT)(echo "# $(2) second part options"; \
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echo "# Generated file, do not edit!!!"; \
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for entry in $(6); do \
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file="$(4)/$${entry}.in"; \
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_entry=$$(echo "$${entry}" |$(sed) -r -s -e 's/[-.+]/_/g;'); \
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if [ -f "$${file}.2" ]; then \
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echo ""; \
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echo "if $(3)_$${_entry}"; \
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echo "comment \"$${entry} other options\""; \
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echo "source \"$${file}.2\""; \
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echo "endif"; \
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fi; \
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done; \
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) >$(1).2
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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. DEBUG)
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# $4 : base directory containing config files
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# $5 : list of config entries (eg. for debug: "dmalloc duma gdb"...)
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# Example to build the generated debug config file:
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# $(call build_gen_menu_in,config.gen/debug.in,Debug,DEBUG,config/debug,$(DEBUGS))
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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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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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echo " prompt \"$${entry}\""; \
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dep_val=$$($(grep) -E '^# depends on ' $${file} 2>/dev/null); \
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if [ -n "$${dep_val}" ]; then \
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echo " $${dep_val#\# }"; \
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fi; \
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echo "if $(3)_$${_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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# WARNING! If a .in file disapears between two runs, that will NOT be detected!
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config.gen/arch.in: $(ARCH_CONFIG_FILES) $(ARCH_CONFIG_FILES_2)
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$(call build_gen_choice_in,$@,Target Architecture,ARCH,config/arch,Y,$(ARCHS))
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config.gen/kernel.in: $(KERNEL_CONFIG_FILES) $(KERNEL_CONFIG_FILES_2)
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$(call build_gen_choice_in,$@,Target OS,KERNEL,config/kernel,Y,$(KERNELS))
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config.gen/cc.in: $(CC_CONFIG_FILES) $(CC_CONFIG_FILES_2)
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$(call build_gen_choice_in,$@,C compiler,CC,config/cc,,$(CCS))
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config.gen/libc.in: $(LIBC_CONFIG_FILES) $(LIBC_CONFIG_FILES_2)
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$(call build_gen_choice_in,$@,C library,LIBC,config/libc,Y,$(LIBCS))
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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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#-----------------------------------------------------------
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# Cleaning up the mess...
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clean::
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@$(ECHO) " CLEAN config"
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$(SILENT)rm -f config 2>/dev/null || true
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@$(ECHO) " CLEAN config.gen"
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$(SILENT)rm -rf config.gen
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