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kconfig/kconfig.mk
author Johannes Stezenbach <js@sig21.net>
Tue Oct 30 00:22:25 2012 +0000 (2012-10-30)
changeset 3097 5c67476c7342
parent 2999 4ccfca658d9b
child 3167 15f57d843296
permissions -rw-r--r--
scripts/functions: fix endless loop in debug-shell with IO redirection

CT_DEBUG_INTERACTIVE is disabled when stdin, stdout or
stderr are redirected, but the check is only done at
the start of the build and doesn't catch when individual
build commands use redirection. When stdin is redirected
it will cause the debug shell to exit immediately, causing
and endless loop. Thus, save the stdin/our/err file handles
and restore them before invoking the debug shell.

Signed-off-by: Johannes Stezenbach <js@sig21.net>
Message-Id: <20121030102225.GA8303@sig21.net>
Patchwork-Id: 195409 
     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 defconfig olddefconfig

     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 defconfig: .config

    31 	@$(ECHO) '  GEN   $@'

    32 	$(SILENT)$(CONF) --savedefconfig=$${CONFIG-defconfig} $(KCONFIG_TOP)

    33 

    34 olddefconfig:

    35 	@$(ECHO) '  CONF  $@'

    36 	$(SILENT)$(CONF) --defconfig=$${CONFIG-defconfig} $(KCONFIG_TOP)

    37 

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

    39 extractconfig:

    40 	@$(awk) 'BEGIN { dump=0; }                                                  \

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

    42 	             $$1="";                                                        \

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

    44 	             print;                                                         \

    45 	         }                                                                  \

    46 	         $$0~/Dumping user-supplied crosstool-NG configuration: done in/ {  \

    47 	             dump=0;                                                        \

    48 	         }                                                                  \

    49 	         $$0~/Dumping user-supplied crosstool-NG configuration$$/ {         \

    50 	             dump=1;                                                        \

    51 	         }'

    52 

    53 #-----------------------------------------------------------

    54 # Help text used by make help

    55 

    56 help-config::

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

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

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

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

    61 	@echo  '  defconfig          - Save current config as a mini-defconfig to $${CONFIG}'

    62 	@echo  '  olddefconfig       - Update config from a mini-defconfig $${CONFIG}'

    63 	@echo  '                       (default: $${CONFIG}=./defconfig)'
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