yann@1: # ===========================================================================
yann@197: # crosstool-NG configuration targets
yann@1: # These targets are used from top-level makefile
yann@1: 
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@2454: configurators = menuconfig nconfig oldconfig
yann@946: PHONY += $(configurators)
yann@945: 
yann@946: $(configurators): config_files
yann@946: 
yann@946: menuconfig: $(obj)/mconf
yann@959: 	@$(ECHO) "  CONF  $(KCONFIG_TOP)"
yann@940: 	$(SILENT)$< $(KCONFIG_TOP)
yann@1: 
yann@2454: nconfig: $(obj)/nconf
yann@2454: 	@$(ECHO) "  CONF  $(KCONFIG_TOP)"
yann@2454: 	$(SILENT)$< $(KCONFIG_TOP)
yann@2454: 
yann@946: oldconfig: $(obj)/conf .config
yann@945: 	@$(ECHO) "  CONF  $(KCONFIG_TOP)"
yann@2448: 	$(SILENT)$< --silent$@ $(KCONFIG_TOP)
yann@1: 
yann@1803: # Always be silent, the stdout an be >.config
yann@1803: extractconfig:
yann@1803: 	@awk 'BEGIN { dump=0; }                                                 \
yann@1803: 	      dump==1 && $$0~/^\[.....\][[:space:]]+(# |)CT_/ {                 \
yann@1803: 	          $$1="";                                                       \
yann@1803: 	          gsub("^[[:space:]]","");                                      \
yann@1803: 	          print;                                                        \
yann@1803: 	      }                                                                 \
yann@1803: 	      $$0~/Dumping user-supplied crosstool-NG configuration: done in/ { \
yann@1803: 	          dump=0;                                                       \
yann@1803: 	      }                                                                 \
yann@1803: 	      $$0~/Dumping user-supplied crosstool-NG configuration$$/ {        \
yann@1803: 	          dump=1;                                                       \
yann@1803: 	      }'
yann@1803: 
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@1803: 	@echo  '  extractconfig      - Extract to stdout the configuration items from a'
yann@1803: 	@echo  '                       build.log file piped to stdin'
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@959: HOST_LD ?= gcc
yann@959: 
yann@959: # Helpers
yann@2448: check_gettext = $(CT_LIB_DIR)/kconfig/check.sh
yann@959: check_lxdialog = $(CT_LIB_DIR)/kconfig/lxdialog/check-lxdialog.sh
yann@959: 
yann@959: # Build flags
yann@2650: CFLAGS = -DCONFIG_=\"CT_\" -DPACKAGE="\"crosstool-NG $(CT_VERSION)\""
yann@959: LDFLAGS =
yann@182: 
yann@943: # Compiler flags to use gettext
yann@959: INTL_CFLAGS = $(shell $(SHELL) $(check_gettext) $(HOST_CC) $(EXTRA_CFLAGS))
yann@943: 
yann@940: # Compiler and linker flags to use ncurses
yann@959: NCURSES_CFLAGS = $(shell $(SHELL) $(check_lxdialog) -ccflags)
yann@2125: NCURSES_LDFLAGS = $(shell $(SHELL) $(check_lxdialog) -ldflags $(HOST_CC))
yann@2125: 
yann@2125: # Check that we have the required ncurses stuff installed for lxdialog (menuconfig)
yann@2125: dochecklxdialog:
yann@2125: 	$(SILENT)$(SHELL) $(check_lxdialog) -check $(HOST_CC) $(NCURSES_CFLAGS) $(NCURSES_LDFLAGS)
yann@182: 
yann@959: # Common source files
yann@959: COMMON_SRC = kconfig/zconf.tab.c
yann@959: COMMON_OBJ = $(patsubst %.c,%.o,$(COMMON_SRC))
yann@959: COMMON_DEP = $(patsubst %.o,%.dep,$(COMMON_OBJ))
yann@959: $(COMMON_OBJ) $(COMMON_DEP): CFLAGS += $(INTL_CFLAGS)
yann@959: 
yann@959: # lxdialog source files
yann@959: LX_SRC = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/kconfig/lxdialog/*.c))
yann@959: LX_OBJ = $(patsubst %.c,%.o,$(LX_SRC))
yann@959: LX_DEP = $(patsubst %.o,%.dep,$(LX_OBJ))
yann@959: $(LX_OBJ) $(LX_DEP): CFLAGS += $(NCURSES_CFLAGS) $(INTL_CFLAGS)
yann@816: 
yann@940: # What's needed to build 'conf'
yann@959: conf_SRC = kconfig/conf.c
yann@959: conf_OBJ = $(patsubst %.c,%.o,$(conf_SRC))
yann@959: conf_DEP = $(patsubst %.o,%.dep,$(conf_OBJ))
yann@959: $(conf_OBJ) $(conf_DEP): CFLAGS += $(INTL_CFLAGS)
yann@816: 
yann@940: # What's needed to build 'mconf'
yann@959: mconf_SRC = kconfig/mconf.c
yann@940: mconf_OBJ = $(patsubst %.c,%.o,$(mconf_SRC))
yann@959: mconf_DEP = $(patsubst %.c,%.dep,$(mconf_SRC))
yann@959: $(mconf_OBJ) $(mconf_DEP): CFLAGS += $(NCURSES_CFLAGS) $(INTL_CFLAGS)
yann@959: $(obj)/mconf: LDFLAGS += $(NCURSES_LDFLAGS)
yann@2454: 
yann@2454: # What's needed to build 'nconf'
yann@2454: nconf_SRC = kconfig/nconf.c kconfig/nconf.gui.c
yann@2454: nconf_OBJ = $(patsubst %.c,%.o,$(nconf_SRC))
yann@2454: nconf_DEP = $(patsubst %.c,%.dep,$(nconf_SRC))
yann@2454: $(nconf_OBJ) $(nconf_DEP): CFLAGS += $(INTL_CFLAGS)
yann@2454: $(obj)/nconf: LDFLAGS += -lmenu -lpanel -lncurses
yann@2454: 
yann@2454: # Under Cygwin, we need to auto-import some libs (which ones, exactly?)
yann@2454: # for mconf and nconf to lin properly.
yann@1087: ifeq ($(shell uname -o 2>/dev/null || echo unknown),Cygwin)
yann@1087: $(obj)/mconf: LDFLAGS += -Wl,--enable-auto-import
yann@2454: $(obj)/nconf: LDFLAGS += -Wl,--enable-auto-import
yann@1087: endif
yann@959: 
yann@959: # These are generated files:
yann@2454: ALL_OBJS = $(sort $(COMMON_OBJ) $(LX_OBJ) $(conf_OBJ) $(mconf_OBJ) $(nconf_OBJ))
yann@2454: ALL_DEPS = $(sort $(COMMON_DEP) $(LX_DEP) $(conf_DEP) $(mconf_DEP) $(nconf_DEP))
yann@1: 
yann@940: # Cheesy auto-dependencies
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...)
antony@2564: # We must be careful 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 $(DEPS)" line should be sufficient.
yann@2125: # And in case we want menuconfig, we have to check that lxdialog
yann@2125: # can find a curses lib.
yann@946: 
yann@946: ifneq ($(strip $(MAKECMDGOALS)),)
yann@946: ifneq ($(strip $(filter $(configurators),$(MAKECMDGOALS))),)
yann@946: 
yann@959: DEPS = $(COMMON_DEP)
yann@959: ifneq ($(strip $(filter oldconfig,$(MAKECMDGOALS))),)
yann@959: DEPS += $(conf_DEP)
yann@959: endif
yann@959: ifneq ($(strip $(filter menuconfig,$(MAKECMDGOALS))),)
yann@959: DEPS += $(mconf_DEP) $(LX_DEP)
yann@2125: $(COMMON_OBJ) $(COMMON_DEP): |dochecklxdialog
yann@2125: $(LX_OBJ) $(LX_DEP): |dochecklxdialog
yann@2125: $(mconf_OBJ) $(mconf_DEP): |dochecklxdialog
yann@959: endif
yann@2454: ifneq ($(strip $(filter nconfig,$(MAKECMDGOALS))),)
yann@2454: DEPS += $(nconf_DEP)
yann@2454: endif
yann@959: 
yann@945: -include $(DEPS)
yann@940: 
yann@946: endif # MAKECMDGOALS contains a configurator rule
yann@946: endif # MAKECMDGOALS != ""
yann@946: 
yann@959: # Each .o or .dep *can not* directly depend on kconfig/, because kconfig can
yann@959: # be touched during the build (who's touching it, btw?) so each .o or .dep
antony@2564: # would be re-built when it should not be.
yann@959: # So manually check for presence of $(obj) (ie. kconfig), and only mkdir
yann@959: # if needed. After all, that's not so bad...
yann@959: # mkdir $(obj)/lxdialog, because we need it, and incidentally, that
yann@959: # also creates $(obj).
yann@959: define check_kconfig_dir
yann@940: 	$(SILENT)if [ ! -d $(obj)/lxdialog ]; then  \
yann@940: 	   $(ECHO) "  MKDIR $(obj)";           \
yann@940: 	   mkdir -p $(obj)/lxdialog;        \
yann@940: 	 fi
yann@959: endef
yann@959: 
yann@959: # Build the dependency for C files
yann@959: %.dep: %.c $(CT_LIB_DIR)/kconfig/kconfig.mk
yann@959: 	$(check_kconfig_dir)
yann@940: 	@$(ECHO) "  DEP   $@"
yann@1155: 	$(SILENT)$(HOST_CC) $(CFLAGS) $(EXTRA_CFLAGS) -MM $< |$(sed) -r -e 's|([^:]+.o)( *:+)|$(<:.c=.o) $@\2|;' >$@
yann@940: 
yann@959: # Build C files
yann@940: %.o: %.c $(CT_LIB_DIR)/kconfig/kconfig.mk
yann@959: 	$(check_kconfig_dir)
yann@940: 	@$(ECHO) "  CC    $@"
yann@943: 	$(SILENT)$(HOST_CC) $(CFLAGS) $(EXTRA_CFLAGS) -o $@ -c $<
yann@940: 
yann@959: # Actual link
yann@959: $(obj)/mconf: $(COMMON_OBJ) $(LX_OBJ) $(mconf_OBJ)
yann@940: 	@$(ECHO) '  LD    $@'
yann@1087: 	$(SILENT)$(HOST_LD) -o $@ $^ $(LDFLAGS) $(EXTRA_LDFLAGS)
yann@940: 
yann@2454: $(obj)/nconf: $(COMMON_OBJ) $(nconf_OBJ)
yann@2454: 	@$(ECHO) '  LD    $@'
yann@2454: 	$(SILENT)$(HOST_LD) -o $@ $^ $(LDFLAGS) $(EXTRA_LDFLAGS)
yann@2454: 
yann@959: $(obj)/conf: $(COMMON_OBJ) $(conf_OBJ)
yann@940: 	@$(ECHO) '  LD    $@'
yann@1087: 	$(SILENT)$(HOST_LD) -o $@ $^ $(LDFLAGS) $(EXTRA_LDFLAGS)
yann@1: 
yann@926: #-----------------------------------------------------------
yann@926: # Cleaning up the mess...
yann@926: 
yann@1: clean::
yann@940: 	@$(ECHO) "  CLEAN kconfig"
yann@2454: 	$(SILENT)rm -f kconfig/{,m,n}conf{,.exe} $(ALL_OBJS) $(ALL_DEPS)
yann@940: 	$(SILENT)rmdir --ignore-fail-on-non-empty kconfig{/lxdialog,} 2>/dev/null || true