yann@1: # ===========================================================================
yann@197: # crosstool-NG configuration targets
yann@1: # These targets are used from top-level makefile
yann@1: 
yann@148: # Derive the project version from, well, the project version:
yann@148: export PROJECTVERSION=$(CT_VERSION)
yann@148: 
yann@926: #-----------------------------------------------------------
yann@926: # Some static /configuration/
yann@926: 
yann@945: # The place where the kconfig stuff lies
yann@926: obj = kconfig
yann@926: 
yann@926: #-----------------------------------------------------------
yann@926: # The configurators rules
yann@182: 
yann@946: configurators = menuconfig oldconfig defoldconfig
yann@946: PHONY += $(configurators)
yann@945: 
yann@946: $(configurators): config_files
yann@946: 
yann@946: menuconfig: $(obj)/mconf
yann@945: 	@$(ECHO) "  MCONF $(KCONFIG_TOP)"
yann@940: 	$(SILENT)$< $(KCONFIG_TOP)
yann@1: 
yann@946: oldconfig: $(obj)/conf .config
yann@945: 	@$(ECHO) "  CONF  $(KCONFIG_TOP)"
yann@940: 	$(SILENT)$< -s $(KCONFIG_TOP)
yann@1: 
yann@946: defoldconfig: $(obj)/conf .config
yann@945: 	@$(ECHO) "  CONF  $(KCONFIG_TOP)"
yann@940: 	$(SILENT)yes "" |$< -s $(KCONFIG_TOP)
yann@159: 
yann@926: #-----------------------------------------------------------
yann@1: # Help text used by make help
yann@926: 
yann@176: help-config::
yann@333: 	@echo  '  menuconfig         - Update current config using a menu based program'
yann@333: 	@echo  '  oldconfig          - Update current config using a provided .config as base'
yann@940: 	@echo  '  defoldconfig       - As oldconfig, above, but using defaults for new options'
yann@1: 
yann@926: #-----------------------------------------------------------
yann@940: # Hmmm! Cheesy build!
yann@940: # Or: where I can unveil my make-fu... :-]
yann@1: 
yann@940: # Oh! Files not here are there, in fact! :-)
yann@940: vpath %.c $(CT_LIB_DIR)
yann@940: vpath %.h $(CT_LIB_DIR)
yann@1: 
yann@940: # What is the compiler?
yann@940: HOST_CC ?= gcc -funsigned-char
yann@182: 
yann@943: # Compiler flags to use gettext
yann@943: EXTRA_CFLAGS += $(shell $(SHELL) $(CT_LIB_DIR)/kconfig/check-gettext.sh $(HOST_CC) $(CFLAGS))
yann@943: 
yann@940: # Compiler and linker flags to use ncurses
yann@943: EXTRA_CFLAGS += $(shell $(SHELL) $(CT_LIB_DIR)/kconfig/lxdialog/check-lxdialog.sh -ccflags)
yann@943: EXTRA_LDFLAGS += $(shell $(SHELL) $(CT_LIB_DIR)/kconfig/lxdialog/check-lxdialog.sh -ldflags $(HOST_CC))
yann@182: 
yann@940: # Common source files, and lxdialog source files
yann@940: SRC = kconfig/zconf.tab.c
yann@940: LXSRC = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/kconfig/lxdialog/*.c))
yann@816: 
yann@940: # What's needed to build 'conf'
yann@940: conf_SRC  = $(SRC) kconfig/conf.c
yann@940: conf_OBJ  = $(patsubst %.c,%.o,$(conf_SRC))
yann@816: 
yann@940: # What's needed to build 'mconf'
yann@940: mconf_SRC = $(SRC) $(LXSRC) kconfig/mconf.c
yann@940: mconf_OBJ = $(patsubst %.c,%.o,$(mconf_SRC))
yann@1: 
yann@940: # Cheesy auto-dependencies
yann@945: DEPS = $(patsubst %.c,%.dep,$(sort $(conf_SRC) $(mconf_SRC)))
yann@946: 
yann@946: # Only parse the following if a configurator was called, to avoid building
yann@946: # dependencies when not needed (eg. list-steps, list-samples...)
yann@946: # We must be carefull what we enclose, because we need some of the variable
yann@946: # definitions for clean (and distclean) at least.
yann@946: # Just protecting the "-include $(DEPS)" line should be sufficient.
yann@946: 
yann@946: ifneq ($(strip $(MAKECMDGOALS)),)
yann@946: ifneq ($(strip $(filter $(configurators),$(MAKECMDGOALS))),)
yann@946: 
yann@945: -include $(DEPS)
yann@940: 
yann@946: endif # MAKECMDGOALS contains a configurator rule
yann@946: endif # MAKECMDGOALS != ""
yann@946: 
yann@940: # This is not very nice, as they will get rebuild even if (dist)cleaning... :-(
yann@940: # Should look into the Linux kernel Kbuild to see how they do that...
yann@940: # To really make me look into this, keep the annoying "DEP xxx" messages.
yann@940: # Also see the comment for the "%.o: %c" rule below
yann@945: %.dep: %.c $(CT_LIB_DIR)/kconfig/kconfig.mk $(CT_NG)
yann@940: 	$(SILENT)if [ ! -d $(obj)/lxdialog ]; then  \
yann@940: 	   $(ECHO) "  MKDIR $(obj)";           \
yann@940: 	   mkdir -p $(obj)/lxdialog;        \
yann@940: 	 fi
yann@940: 	@$(ECHO) "  DEP   $@"
yann@943: 	$(SILENT)$(HOST_CC) $(CFLAGS) $(EXTRA_CFLAGS) -MM $< |sed -r -e 's|([^:]+.o)( *:+)|$(<:.c=.o) $@\2|;' >$@
yann@940: 
yann@940: # Each .o must depend on the corresponding .c (obvious, isn't it?),
yann@940: # but *can not* depend on kconfig/, because kconfig can be touched
yann@940: # during the build (who's touching it, btw?) so each .o would be
yann@940: # re-built when they sould not be.
yann@940: # So manually check for presence of $(obj) (ie. kconfig), and only mkdir
yann@940: # if needed. After all, that's not so bad...
yann@940: # mkdir $(obj)/lxdialog, because we need it, and incidentally, that
yann@940: # also creates $(obj).
yann@940: # Also rebuild the object files is the makefile is changed
yann@940: %.o: %.c $(CT_LIB_DIR)/kconfig/kconfig.mk
yann@940: 	$(SILENT)if [ ! -d $(obj)/lxdialog ]; then  \
yann@940: 	   $(ECHO) "  MKDIR $(obj)";           \
yann@940: 	   mkdir -p $(obj)/lxdialog;        \
yann@940: 	 fi
yann@940: 	@$(ECHO) "  CC    $@"
yann@943: 	$(SILENT)$(HOST_CC) $(CFLAGS) $(EXTRA_CFLAGS) -o $@ -c $<
yann@940: 
yann@940: $(obj)/mconf: $(mconf_OBJ)
yann@940: 	@$(ECHO) '  LD    $@'
yann@943: 	$(SILENT)$(HOST_CC) $(CFLAGS) $(EXTRA_CFLAGS) $(LDFLAGS) $(EXTRA_LDFLAGS) -o $@ $^
yann@940: 
yann@940: $(obj)/conf: $(conf_OBJ)
yann@940: 	@$(ECHO) '  LD    $@'
yann@943: 	$(SILENT)$(HOST_CC) $(CFLAGS) $(EXTRA_CFLAGS) $(LDFLAGS) $(EXTRA_LDFLAGS) -o $@ $^
yann@1: 
yann@926: #-----------------------------------------------------------
yann@926: # Cleaning up the mess...
yann@926: 
yann@1: clean::
yann@940: 	@$(ECHO) "  CLEAN kconfig"
yann@940: 	$(SILENT)rm -f kconfig/{,m}conf $(conf_OBJ) $(mconf_OBJ) $(DEPS)
yann@940: 	$(SILENT)rmdir --ignore-fail-on-non-empty kconfig{/lxdialog,} 2>/dev/null || true