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kconfig/Makefile
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Jan 03 22:57:25 2012 +0100 (2012-01-03)
changeset 2936 2dfea349d307
parent 2835 0a2fa748727e
child 2998 7b1dda3ab075
permissions -rw-r--r--
cc/gcc: build core compilers for canadian

Currently, we rely on an existing external cross-compiler targetting
the target, to build the C library.

This can pause quite a few problems if that compiler is different from
the one we are building, because it could introduce some ABI issues.

This patch removes this dependency, by building the core compilers
as we do for standard cross, and also by building the binutils and
gcc, for running on the build machine.

This means we no longer need to offer the cross-sompiler selection in
the menuconfig.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 #-----------------------------------------------------------

     2 # Hmmm! Cheesy build!

     3 # Or: where I can unveil my make-fu... :-]

     4 

     5 all: conf mconf nconf

     6 	@true   # Just be silent, you fscking son of a fscking beach...

     7 

     8 # Build flags

     9 CFLAGS = -DCONFIG_=\"CT_\" -DPACKAGE="\"crosstool-NG $(VERSION)\""

    10 LDFLAGS =

    11 

    12 # Compiler flags to use gettext

    13 ifeq ($(gettext),)

    14 INTL_CFLAGS = -DKBUILD_NO_NLS

    15 endif

    16 

    17 # Compiler and linker flags to use ncurses

    18 NCURSES_CFLAGS = -DCURSES_LOC="\"$(curses_hdr)\""

    19 NCURSES_LDFLAGS = $(LIBS)

    20 

    21 # Common source files

    22 COMMON_SRC = zconf.tab.c

    23 COMMON_OBJ = $(patsubst %.c,%.o,$(COMMON_SRC))

    24 COMMON_DEP = $(patsubst %.o,%.dep,$(COMMON_OBJ))

    25 $(COMMON_OBJ) $(COMMON_DEP): CFLAGS += $(INTL_CFLAGS) -I.

    26 

    27 # lxdialog source files

    28 LX_SRC = $(wildcard lxdialog/*.c)

    29 LX_OBJ = $(patsubst %.c,%.o,$(LX_SRC))

    30 LX_DEP = $(patsubst %.o,%.dep,$(LX_OBJ))

    31 $(LX_OBJ) $(LX_DEP): CFLAGS += $(NCURSES_CFLAGS) $(INTL_CFLAGS)

    32 

    33 # What's needed to build 'conf'

    34 conf_SRC = conf.c

    35 conf_OBJ = $(patsubst %.c,%.o,$(conf_SRC))

    36 conf_DEP = $(patsubst %.o,%.dep,$(conf_OBJ))

    37 $(conf_OBJ) $(conf_DEP): CFLAGS += $(INTL_CFLAGS)

    38 

    39 # What's needed to build 'mconf'

    40 mconf_SRC = mconf.c

    41 mconf_OBJ = $(patsubst %.c,%.o,$(mconf_SRC))

    42 mconf_DEP = $(patsubst %.c,%.dep,$(mconf_SRC))

    43 $(mconf_OBJ) $(mconf_DEP): CFLAGS += $(NCURSES_CFLAGS) $(INTL_CFLAGS)

    44 mconf: LDFLAGS += $(NCURSES_LDFLAGS)

    45 

    46 # What's needed to build 'nconf'

    47 nconf_SRC = nconf.c nconf.gui.c

    48 nconf_OBJ = $(patsubst %.c,%.o,$(nconf_SRC))

    49 nconf_DEP = $(patsubst %.c,%.dep,$(nconf_SRC))

    50 $(nconf_OBJ) $(nconf_DEP): CFLAGS += $(INTL_CFLAGS)

    51 nconf: LDFLAGS += -lmenu -lpanel -lncurses

    52 

    53 # Under Cygwin, we need to auto-import some libs (which ones, exactly?)

    54 # for mconf and nconf to lin properly.

    55 ifeq ($(shell uname -o 2>/dev/null || echo unknown),Cygwin)

    56 mconf: LDFLAGS += -Wl,--enable-auto-import

    57 nconf: LDFLAGS += -Wl,--enable-auto-import

    58 endif

    59 

    60 # These are generated files:

    61 ALL_OBJS = $(sort $(COMMON_OBJ) $(LX_OBJ) $(conf_OBJ) $(mconf_OBJ) $(nconf_OBJ))

    62 ALL_DEPS = $(sort $(COMMON_DEP) $(LX_DEP) $(conf_DEP) $(mconf_DEP) $(nconf_DEP))

    63 

    64 # Cheesy auto-dependencies

    65 DEPS = $(COMMON_DEP)

    66 DEPS += $(conf_DEP)

    67 DEPS += $(mconf_DEP) $(LX_DEP)

    68 DEPS += $(nconf_DEP)

    69 -include $(DEPS)

    70 

    71 # Build the dependency for C files

    72 %.dep: %.c

    73 	@echo "  DEP    '$@'"

    74 	@$(CC) $(CFLAGS) $(EXTRA_CFLAGS) -MM $< |$(sed) -r -e 's|([^:]+.o)( *:+)|$(<:.c=.o) $@\2|;' >$@

    75 

    76 # Generate the grammar parser

    77 zconf.tab.o: zconf.tab.c zconf.hash.c lex.zconf.c

    78 zconf.tab.dep: zconf.tab.c zconf.hash.c lex.zconf.c

    79 

    80 .PRECIOUS: zconf.tab.c

    81 zconf.tab.c: zconf.y

    82 	@echo "  BISON  '$@'"

    83 	@bison -l -b zconf -p zconf $<

    84 

    85 zconf.hash.c: zconf.gperf

    86 	@echo "  GPERF  '$@'"

    87 	@gperf < $< > $@

    88 

    89 lex.zconf.c: zconf.l

    90 	@echo "  LEX    '$@'"

    91 	@flex -L -P zconf -o $@ $<

    92 

    93 # Build C files

    94 %.o: %.c

    95 	@echo "  CC     '$@'"

    96 	@$(CC) $(CFLAGS) $(EXTRA_CFLAGS) -o $@ -c $<

    97 

    98 # Actual link

    99 mconf: $(COMMON_OBJ) $(LX_OBJ) $(mconf_OBJ)

   100 	@echo "  LD     '$@'"

   101 	@$(CC) -o $@ $^ $(LDFLAGS) $(EXTRA_LDFLAGS)

   102 

   103 nconf: $(COMMON_OBJ) $(nconf_OBJ)

   104 	@echo "  LD     '$@'"

   105 	@$(CC) -o $@ $^ $(LDFLAGS) $(EXTRA_LDFLAGS)

   106 

   107 conf: $(COMMON_OBJ) $(conf_OBJ)

   108 	@echo "  LD     '$@'"

   109 	@$(CC) -o $@ $^ $(LDFLAGS) $(EXTRA_LDFLAGS)

   110 

   111 #-----------------------------------------------------------

   112 # Cleaning up the mess...

   113 

   114 clean:

   115 	@echo "  RM     'kconfig'"

   116 	@rm -f conf mconf nconf $(ALL_OBJS) $(ALL_DEPS)

   117 	@rm -f rm -f zconf.tab.c zconf.hash.c lex.zconf.c lex.backup
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