# ===========================================================================

# crosstool-NG configuration targets

# These targets are used from top-level makefile

# Derive the project version from, well, the project version:

export PROJECTVERSION=$(CT_VERSION)

#-----------------------------------------------------------

# Some static /configuration/

KCONFIG_TOP = config/config.in

obj = kconfig

PHONY += clean help oldconfig menuconfig defoldconfig

# Darwin (MacOS-X) does not have proper libintl support

ifeq ($(shell uname -s),Darwin)

KBUILD_NO_NLS:=1

endif

ifneq ($(KBUILD_NO_NLS),)

CFLAGS += -DKBUILD_NO_NLS

endif

#-----------------------------------------------------------

# List all config files, source and generated

# 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' 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))

KERNEL_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/kernel/*.in))

CC_CONFIG_FILES     = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/cc/*.in))

LIBC_CONFIG_FILES   = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/libc/*.in))

DEBUG_CONFIG_FILES  = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/debug/*.in))

TOOL_CONFIG_FILES   = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/tools/*.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/tools.in    \

                   config.gen/debug.in

# ... and how to access them:

# Generated files depends on kconfig.mk (this file) because it has the

# functions needed to build the genrated files, and thus they might

# need re-generation if kconfig.mk changes

$(GEN_CONFIG_FILES): config.gen                         \

                     $(CT_LIB_DIR)/kconfig/kconfig.mk

# KCONFIG_TOP should already be in STATIC_CONFIG_FILES, anyway...

CONFIG_FILES = $(sort $(KCONFIG_TOP) $(STATIC_CONFIG_FILES) $(GEN_CONFIG_FILES))

# Where to access to the source config files from

config:

	@echo "  LN    config"

	@ln -s $(CT_LIB_DIR)/config config

# Where to store the generated config files into

config.gen:

	@echo "  MKDIR config.gen"

	@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))

TOOLS   = $(patsubst config/tools/%.in,%,$(TOOL_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 : 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)'

	@(echo "# $(2) menu";                                               \

	  echo "# Generated file, do not edit!!!";                          \

	  echo "";                                                          \

	  echo "choice";                                                    \

	  echo "    bool";                                                  \

	  echo "    prompt \"$(2)\"";                                       \

	  echo "";                                                          \

	  for entry in $(5); do                                             \

	    file="$(4)/$${entry}.in";                                       \

	    _entry=$$(echo "$${entry}" |sed -r -s -e 's/[-.+]/_/g;');       \

	    echo "config $(3)_$${_entry}";                                  \

	    echo "    bool";                                                \

	    printf "    prompt \"$${entry}";                                \

	    if grep -E '^# +EXPERIMENTAL$$' $${file} >/dev/null 2>&1; then  \

	      echo " (EXPERIMENTAL)\"";                                     \

	      echo "    depends on EXPERIMENTAL";                           \

	    else                                                            \

	      echo "\"";                                                    \

	    fi;                                                             \

	  done;                                                             \

	  echo "";                                                          \

	  echo "endchoice";                                                 \

	  for entry in $(5); do                                             \

	    file="$(4)/$${entry}.in";                                       \

	    _entry=$$(echo "$${entry}" |sed -r -s -e 's/[-.+]/_/g;');       \

	    echo "";                                                        \

	    echo "if $(3)_$${_entry}";                                      \

	    echo "config $(3)";                                             \

	    echo "    default \"$${entry}\" if $(3)_$${_entry}";            \

	    echo "source $${file}";                                         \

	    echo "endif";                                                   \

	  done;                                                             \

	 ) >$(1)

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. TOOL, DEBUG)

# $4 : base directory containing config files

# $5 : list of config entries (eg. for tools: "libelf sstrip"..., and for

#      debug: "dmalloc duma gdb"...)

# Example to build the tools generated config file:

# $(call build_gen_menu_in,config.gen/tools.in,Tools,TOOL,config/tools,$(TOOLS))

define build_gen_menu_in

	@echo '  IN    $(1)'

	@(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";                                                \

	    printf "    prompt \"$${entry}";                                \

	    if grep -E '^# +EXPERIMENTAL$$' $${file} >/dev/null 2>&1; then  \

	      echo " (EXPERIMENTAL)\"";                                     \

	      echo "    depends on EXPERIMENTAL";                           \

	    else                                                            \

	      echo "\"";                                                    \

	    fi;                                                             \

	    echo "if $(3)_$${_entry}";                                      \

	    echo "source $${file}";                                         \

	    echo "endif";                                                   \

	    echo "";                                                        \

	  done;                                                             \

	 ) >$(1)

endef

#-----------------------------------------------------------

# The rules for the generated config files

config.gen/arch.in: $(ARCH_CONFIG_FILES)

	$(call build_gen_choice_in,$@,Target Architecture,ARCH,config/arch,$(ARCHS))

config.gen/kernel.in: $(KERNEL_CONFIG_FILES)

	$(call build_gen_choice_in,$@,Target OS,KERNEL,config/kernel,$(KERNELS))

config.gen/cc.in: $(CC_CONFIG_FILES)

	$(call build_gen_choice_in,$@,C compiler,CC,config/cc,$(CCS))

config.gen/libc.in: $(LIBC_CONFIG_FILES)

	$(call build_gen_choice_in,$@,C library,LIBC,config/libc,$(LIBCS))

config.gen/tools.in: $(TOOL_CONFIG_FILES)

	$(call build_gen_menu_in,$@,Tools,TOOL,config/tools,$(TOOLS))

config.gen/debug.in: $(DEBUG_CONFIG_FILES)

	$(call build_gen_menu_in,$@,Debug,DEBUG,config/debug,$(DEBUGS))

#-----------------------------------------------------------

# The configurators rules

menuconfig: $(CONFIG_FILES) $(obj)/mconf

	@$(obj)/mconf $(KCONFIG_TOP)

oldconfig: $(CONFIG_FILES) $(obj)/conf

	@$(obj)/conf -s $(KCONFIG_TOP)

defoldconfig: $(CONFIG_FILES) $(obj)/conf

	@yes "" |$(obj)/conf -s $(KCONFIG_TOP)

#-----------------------------------------------------------

# Help text used by make help

help-config::

	@echo  '  menuconfig         - Update current config using a menu based program'

	@echo  '  oldconfig          - Update current config using a provided .config as base'

	@echo  '                       build log piped into stdin'

#-----------------------------------------------------------

# Not-so-cheesy build, needs rework...

SHIPPED := $(CT_LIB_DIR)/kconfig/zconf.tab.c $(CT_LIB_DIR)/kconfig/lex.zconf.c $(CT_LIB_DIR)/kconfig/zconf.hash.c

$(obj)/conf $(obj)/mconf: $(obj)

$(obj):

	@mkdir -p $(obj)

HEADERS = $(CT_LIB_DIR)/kconfig/expr.h      \

          $(CT_LIB_DIR)/kconfig/lkc.h       \

          $(CT_LIB_DIR)/kconfig/lkc_proto.h

FILES = $(CT_LIB_DIR)/kconfig/confdata.c    \

        $(CT_LIB_DIR)/kconfig/expr.c        \

        $(CT_LIB_DIR)/kconfig/menu.c        \

        $(CT_LIB_DIR)/kconfig/symbol.c      \

        $(CT_LIB_DIR)/kconfig/util.c

$(obj)/mconf: $(SHIPPED) $(CT_LIB_DIR)/kconfig/mconf.c  \

              $(HEADERS) $(FILES)                       \

              $(CT_LIB_DIR)/kconfig/kconfig.mk

	@echo '  LD    $@'

	@$(HOST_CC) $(CFLAGS) -o $@ $(CT_LIB_DIR)/kconfig/{mconf.c,zconf.tab.c,lxdialog/*.c} \

	     $(shell $(CT_LIB_DIR)/kconfig/lxdialog/check-lxdialog.sh -ccflags)              \

	     $(shell $(CT_LIB_DIR)/kconfig/lxdialog/check-lxdialog.sh -ldflags $(HOST_CC))

$(obj)/conf: $(SHIPPED) $(CT_LIB_DIR)/kconfig/conf.c    \

             $(HEADERS) $(FILES)                        \

             $(CT_LIB_DIR)/kconfig/kconfig.mk

	@echo '  LD    $@'

	@$(HOST_CC) $(CFLAGS) -o $@ $(CT_LIB_DIR)/kconfig/{conf.c,zconf.tab.c}

#-----------------------------------------------------------

# Cleaning up the mess...

clean::

	@echo "  CLEAN kconfig"

	@rm -f kconfig/{,m}conf

	@rmdir --ignore-fail-on-non-empty kconfig 2>/dev/null || true

	@echo "  CLEAN config"

	@rm -f config 2>/dev/null || true

	@echo "  CLEAN config.gen"

	@rm -rf config.gen