1 # ===========================================================================
2 # crosstool-NG configuration targets
3 # These targets are used from top-level makefile
5 # Derive the project version from, well, the project version:
6 export PROJECTVERSION=$(CT_VERSION)
8 # The place where the kconfig stuff lies
11 #-----------------------------------------------------------
12 # The configurators rules
14 configurators = menuconfig oldconfig
15 PHONY += $(configurators)
17 $(configurators): config_files
19 menuconfig: $(obj)/mconf
20 @$(ECHO) " CONF $(KCONFIG_TOP)"
21 $(SILENT)$< $(KCONFIG_TOP)
23 oldconfig: $(obj)/conf .config
24 @$(ECHO) " CONF $(KCONFIG_TOP)"
25 $(SILENT)$< -s $(KCONFIG_TOP)
27 # Always be silent, the stdout an be >.config
29 @awk 'BEGIN { dump=0; } \
30 dump==1 && $$0~/^\[.....\][[:space:]]+(# |)CT_/ { \
32 gsub("^[[:space:]]",""); \
35 $$0~/Dumping user-supplied crosstool-NG configuration: done in/ { \
38 $$0~/Dumping user-supplied crosstool-NG configuration$$/ { \
42 #-----------------------------------------------------------
43 # Help text used by make help
46 @echo ' menuconfig - Update current config using a menu based program'
47 @echo ' oldconfig - Update current config using a provided .config as base'
48 @echo ' extractconfig - Extract to stdout the configuration items from a'
49 @echo ' build.log file piped to stdin'
51 #-----------------------------------------------------------
53 # Or: where I can unveil my make-fu... :-]
55 # Oh! Files not here are there, in fact! :-)
56 vpath %.c $(CT_LIB_DIR)
57 vpath %.h $(CT_LIB_DIR)
59 # What is the compiler?
60 HOST_CC ?= gcc -funsigned-char
64 check_gettext = $(CT_LIB_DIR)/kconfig/check-gettext.sh
65 check_lxdialog = $(CT_LIB_DIR)/kconfig/lxdialog/check-lxdialog.sh
71 # Compiler flags to use gettext
72 INTL_CFLAGS = $(shell $(SHELL) $(check_gettext) $(HOST_CC) $(EXTRA_CFLAGS))
74 # Compiler and linker flags to use ncurses
75 NCURSES_CFLAGS = $(shell $(SHELL) $(check_lxdialog) -ccflags)
76 NCURSES_LDFLAGS = $(shell $(SHELL) $(check_lxdialog) -ldflags $(HOST_CC) $(LX_FLAGS) $(EXTRA_CFLAGS))
79 COMMON_SRC = kconfig/zconf.tab.c
80 COMMON_OBJ = $(patsubst %.c,%.o,$(COMMON_SRC))
81 COMMON_DEP = $(patsubst %.o,%.dep,$(COMMON_OBJ))
82 $(COMMON_OBJ) $(COMMON_DEP): CFLAGS += $(INTL_CFLAGS)
84 # lxdialog source files
85 LX_SRC = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/kconfig/lxdialog/*.c))
86 LX_OBJ = $(patsubst %.c,%.o,$(LX_SRC))
87 LX_DEP = $(patsubst %.o,%.dep,$(LX_OBJ))
88 $(LX_OBJ) $(LX_DEP): CFLAGS += $(NCURSES_CFLAGS) $(INTL_CFLAGS)
90 # What's needed to build 'conf'
91 conf_SRC = kconfig/conf.c
92 conf_OBJ = $(patsubst %.c,%.o,$(conf_SRC))
93 conf_DEP = $(patsubst %.o,%.dep,$(conf_OBJ))
94 $(conf_OBJ) $(conf_DEP): CFLAGS += $(INTL_CFLAGS)
96 # What's needed to build 'mconf'
97 mconf_SRC = kconfig/mconf.c
98 mconf_OBJ = $(patsubst %.c,%.o,$(mconf_SRC))
99 mconf_DEP = $(patsubst %.c,%.dep,$(mconf_SRC))
100 $(mconf_OBJ) $(mconf_DEP): CFLAGS += $(NCURSES_CFLAGS) $(INTL_CFLAGS)
101 $(obj)/mconf: LDFLAGS += $(NCURSES_LDFLAGS)
102 ifeq ($(shell uname -o 2>/dev/null || echo unknown),Cygwin)
103 $(obj)/mconf: LDFLAGS += -Wl,--enable-auto-import
106 # These are generated files:
107 ALL_OBJS = $(sort $(COMMON_OBJ) $(LX_OBJ) $(conf_OBJ) $(mconf_OBJ))
108 ALL_DEPS = $(sort $(COMMON_DEP) $(LX_DEP) $(conf_DEP) $(mconf_DEP))
110 # Cheesy auto-dependencies
111 # Only parse the following if a configurator was called, to avoid building
112 # dependencies when not needed (eg. list-steps, list-samples...)
113 # We must be carefull what we enclose, because we need some of the variable
114 # definitions for clean (and distclean) at least.
115 # Just protecting the "-include $(DEPS)" line should be sufficient.
117 ifneq ($(strip $(MAKECMDGOALS)),)
118 ifneq ($(strip $(filter $(configurators),$(MAKECMDGOALS))),)
121 ifneq ($(strip $(filter oldconfig,$(MAKECMDGOALS))),)
124 ifneq ($(strip $(filter menuconfig,$(MAKECMDGOALS))),)
125 DEPS += $(mconf_DEP) $(LX_DEP)
130 endif # MAKECMDGOALS contains a configurator rule
131 endif # MAKECMDGOALS != ""
133 # Each .o or .dep *can not* directly depend on kconfig/, because kconfig can
134 # be touched during the build (who's touching it, btw?) so each .o or .dep
135 # would be re-built when it sould not be.
136 # So manually check for presence of $(obj) (ie. kconfig), and only mkdir
137 # if needed. After all, that's not so bad...
138 # mkdir $(obj)/lxdialog, because we need it, and incidentally, that
139 # also creates $(obj).
140 define check_kconfig_dir
141 $(SILENT)if [ ! -d $(obj)/lxdialog ]; then \
142 $(ECHO) " MKDIR $(obj)"; \
143 mkdir -p $(obj)/lxdialog; \
147 # Build the dependency for C files
148 %.dep: %.c $(CT_LIB_DIR)/kconfig/kconfig.mk
151 $(SILENT)$(HOST_CC) $(CFLAGS) $(EXTRA_CFLAGS) -MM $< |$(sed) -r -e 's|([^:]+.o)( *:+)|$(<:.c=.o) $@\2|;' >$@
154 %.o: %.c $(CT_LIB_DIR)/kconfig/kconfig.mk
157 $(SILENT)$(HOST_CC) $(CFLAGS) $(EXTRA_CFLAGS) -o $@ -c $<
160 $(obj)/mconf: $(COMMON_OBJ) $(LX_OBJ) $(mconf_OBJ)
162 $(SILENT)$(HOST_LD) -o $@ $^ $(LDFLAGS) $(EXTRA_LDFLAGS)
164 $(obj)/conf: $(COMMON_OBJ) $(conf_OBJ)
166 $(SILENT)$(HOST_LD) -o $@ $^ $(LDFLAGS) $(EXTRA_LDFLAGS)
168 #-----------------------------------------------------------
169 # Cleaning up the mess...
172 @$(ECHO) " CLEAN kconfig"
173 $(SILENT)rm -f kconfig/{,m}conf{,.exe} $(ALL_OBJS) $(ALL_DEPS)
174 $(SILENT)rmdir --ignore-fail-on-non-empty kconfig{/lxdialog,} 2>/dev/null || true