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kconfig/kconfig.mk
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:46:47 2011 +0200 (2011-07-17)
changeset 2892 aa934ec4b4ee
parent 2650 4d299836e994
child 2981 80151a249b85
child 3006 1c9e4e6a6922
permissions -rw-r--r--
cc/gcc: add the backend/frontend infra for final gcc

Currently, we issue the bare-metal compiler from the pass_1 & pass_2
core compilers, because the final gcc breaks while doing so.

This implies we have to build some libces during the start_files step,
instead of the standard libc step. This is the case for newlib.

By adding a backend/frontend infra to the final gcc, we can abstract
what backend to call: the standard backend for non-bare-metal gcc,
and the core backend for bare-metal.

This patch is just an no-op, it just adds the final backend and
frontend without changing the way bare-metal is built, to come in a
subsequent patch.

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

     2 # crosstool-NG configuration targets

     3 # These targets are used from top-level makefile

     4 

     5 #-----------------------------------------------------------

     6 # The configurators rules

     7 

     8 configurators = menuconfig nconfig oldconfig

     9 PHONY += $(configurators)

    10 

    11 $(configurators): config_files

    12 

    13 CONF  := $(CT_LIB_DIR)/kconfig/conf

    14 MCONF := $(CT_LIB_DIR)/kconfig/mconf

    15 NCONF := $(CT_LIB_DIR)/kconfig/nconf

    16 

    17 menuconfig:

    18 	@$(ECHO) "  CONF  $(KCONFIG_TOP)"

    19 	$(SILENT)$(MCONF) $(KCONFIG_TOP)

    20 

    21 nconfig:

    22 	@$(ECHO) "  CONF  $(KCONFIG_TOP)"

    23 	$(SILENT)$(NCONF) $(KCONFIG_TOP)

    24 

    25 oldconfig: .config

    26 	@$(ECHO) "  CONF  $(KCONFIG_TOP)"

    27 	$(SILENT)$(CONF) --silent$@ $(KCONFIG_TOP)

    28 

    29 # Always be silent, the stdout an be >.config

    30 extractconfig:

    31 	@awk 'BEGIN { dump=0; }                                                 \

    32 	      dump==1 && $$0~/^\[.....\][[:space:]]+(# |)CT_/ {                 \

    33 	          $$1="";                                                       \

    34 	          gsub("^[[:space:]]","");                                      \

    35 	          print;                                                        \

    36 	      }                                                                 \

    37 	      $$0~/Dumping user-supplied crosstool-NG configuration: done in/ { \

    38 	          dump=0;                                                       \

    39 	      }                                                                 \

    40 	      $$0~/Dumping user-supplied crosstool-NG configuration$$/ {        \

    41 	          dump=1;                                                       \

    42 	      }'

    43 

    44 #-----------------------------------------------------------

    45 # Help text used by make help

    46 

    47 help-config::

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

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

    50 	@echo  '  extractconfig      - Extract to stdout the configuration items from a'

    51 	@echo  '                       build.log file piped to stdin'
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