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kconfig/kconfig.mk
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Mon May 07 00:27:05 2012 +0200 (2012-05-07)
changeset 2981 80151a249b85
parent 2835 0a2fa748727e
child 2999 4ccfca658d9b
permissions -rw-r--r--
samples: use savedefconfig when saving samples

When saving a sample, use savedefconfig instead of copying
the full .config file.

This reduces the saved .config, and reduces clutter when it
is later upgraded.

Also use defconfig when retrieving a sample.

Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.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 # We need CONF for savedefconfig in scripts/saveSample.sh

    14 export CONF  := $(CT_LIB_DIR)/kconfig/conf

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

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

    17 

    18 menuconfig:

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

    20 	$(SILENT)$(MCONF) $(KCONFIG_TOP)

    21 

    22 nconfig:

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

    24 	$(SILENT)$(NCONF) $(KCONFIG_TOP)

    25 

    26 oldconfig: .config

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

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

    29 

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

    31 extractconfig:

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

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

    34 	          $$1="";                                                       \

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

    36 	          print;                                                        \

    37 	      }                                                                 \

    38 	      $$0~/Dumping user-supplied crosstool-NG configuration: done in/ { \

    39 	          dump=0;                                                       \

    40 	      }                                                                 \

    41 	      $$0~/Dumping user-supplied crosstool-NG configuration$$/ {        \

    42 	          dump=1;                                                       \

    43 	      }'

    44 

    45 #-----------------------------------------------------------

    46 # Help text used by make help

    47 

    48 help-config::

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

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

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

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