samples/samples.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 2725 32aa23619dfd
child 2982 1e35d2fa54d7
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>
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# Makefile to manage samples
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# ----------------------------------------------------------
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# Build the list of available samples
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CT_TOP_SAMPLES := $(patsubst $(CT_TOP_DIR)/samples/%/crosstool.config,%,$(wildcard $(CT_TOP_DIR)/samples/*/crosstool.config))
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CT_LIB_SAMPLES := $(filter-out $(CT_TOP_SAMPLES),$(patsubst $(CT_LIB_DIR)/samples/%/crosstool.config,%,$(wildcard $(CT_LIB_DIR)/samples/*/crosstool.config)))
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CT_SAMPLES := $(shell echo $(sort $(CT_TOP_SAMPLES) $(CT_LIB_SAMPLES))  \
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                      |$(sed) -r -e 's/ /\n/g;'                         \
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                      |$(sed) -r -e 's/(.*),(.*)/\2,\1/;'               \
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                      |sort                                             \
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                      |$(sed) -r -e 's/(.*),(.*)/\2,\1/;'               \
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               )
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# ----------------------------------------------------------
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# This part deals with the samples help entries
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help-config::
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	@echo  '  saveconfig         - Save current config as a preconfigured target'
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help-samples::
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	@echo  '  list-samples       - prints the list of all samples (for scripting)'
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	@echo  '  show-<sample>      - show a brief overview of <sample> (list with list-samples)'
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	@echo  '  <sample>           - preconfigure crosstool-NG with <sample> (list with list-samples)'
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	@echo  '  build-all[.#]      - Build *all* samples (list with list-samples) and install in'
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	@echo  '                       $${CT_PREFIX} (which you must set)'
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help-distrib::
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	@echo  '  wiki-samples       - Print a DokuWiki table of samples'
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help-env::
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	@echo  '  CT_PREFIX=dir      - install samples in dir (see action "build-all", above).'
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# ----------------------------------------------------------
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# This part deals with printing samples information
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# Print the details of current configuration
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PHONY += show-config
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show-config: .config
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	@export current_tuple=$(shell $(MAKE) -rf "$(CT_NG)" show-tuple );  \
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	$(CT_LIB_DIR)/scripts/showSamples.sh -v current
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# Prints the details of a sample
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PHONY += $(patsubst %,show-%,$(CT_SAMPLES))
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$(patsubst %,show-%,$(CT_SAMPLES)):
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	@$(CT_LIB_DIR)/scripts/showSamples.sh -v $(patsubst show-%,%,$(@))
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# Prints the details of all samples
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PHONY += show-all
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show-all: $(patsubst %,show-%,$(CT_SAMPLES))
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# print the list of all available samples
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PHONY += list-samples
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list-samples: FORCE
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	$(SILENT)$(CT_LIB_DIR)/scripts/showSamples.sh $(CT_SAMPLES)
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PHONY += list-samples-short
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list-samples-short: FORCE
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	$(SILENT)for s in $(CT_SAMPLES); do \
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	    printf "$${s}\n";               \
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	done
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PHONY += wiki-samples
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wiki-samples:
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	$(SILENT)$(CT_LIB_DIR)/scripts/showSamples.sh -w $(CT_SAMPLES)
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# ----------------------------------------------------------
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# This part deals with saving/restoring samples
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PHONY += samples
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samples:
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	@$(ECHO) '  MKDIR $@'
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	$(SILENT)mkdir -p $@
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# Save a sample
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saveconfig: .config samples
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	$(SILENT)$(CT_LIB_DIR)/scripts/saveSample.sh
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# The 'sample_dir' function prints the directory in which the sample is,
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# searching first in local samples, then in global samples
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define sample_dir
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$$( [ -d $(CT_TOP_DIR)/samples/$(1) ] && echo "$(CT_TOP_DIR)/samples/$(1)" || echo "$(CT_LIB_DIR)/samples/$(1)")
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endef
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# How we do recall one sample
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PHONY += $(CT_SAMPLES)
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$(CT_SAMPLES): config_files
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	@$(ECHO) "  CONF  $(KCONFIG_TOP)"
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	$(SILENT)$(CONF) --defconfig=$(call sample_dir,$@)/crosstool.config $(KCONFIG_TOP)
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	@echo
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	@echo  '***********************************************************'
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	@echo
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	$(SILENT)( . $(call sample_dir,$@)/reported.by;                             \
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	   echo "Initially reported by: $${reporter_name}";                         \
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	   echo "URL: $${reporter_url}";                                            \
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	   if [ -n "$${reporter_comment}" ]; then                                   \
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	     echo  ;                                                                \
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	     echo  "Comment:";                                                      \
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	     printf "$${reporter_comment}\n";                                       \
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	   fi;                                                                      \
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	   echo  ;                                                                  \
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	   echo  '***********************************************************';     \
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	 )
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	$(SILENT)if $(grep) -E '^CT_EXPERIMENTAL=y$$' .config >/dev/null 2>&1; then \
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	   echo  ;                                                                  \
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	   echo  'WARNING! This sample may enable experimental features.';          \
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	   echo  '         Please be sure to review the configuration prior';       \
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	   echo  '         to building and using your toolchain!';                  \
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	   echo  'Now, you have been warned!';                                      \
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	   echo  ;                                                                  \
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	   echo  '***********************************************************';     \
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	 fi
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	@echo
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	@echo  'Now configured for "$@"'
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# ----------------------------------------------------------
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# Some helper functions
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# Create the rule to build a sample
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# $1: sample tuple
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# $2: prefix
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define build_sample
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	@$(ECHO) '  CONF  $(1)'
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	$(SILENT)cp $(call sample_dir,$(1))/crosstool.config .config
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	$(SILENT)$(sed) -i -r -e 's:^(CT_PREFIX_DIR=).*$$:\1"$(2)":;' .config
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	$(SILENT)$(sed) -i -r -e 's:^.*(CT_LOG_(WARN|INFO|EXTRA|DEBUG|ALL)).*$$:# \1 is not set:;' .config
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	$(SILENT)$(sed) -i -r -e 's:^.*(CT_LOG_ERROR).*$$:\1=y:;' .config
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	$(SILENT)$(sed) -i -r -e 's:^(CT_LOG_LEVEL_MAX)=.*$$:\1="ERROR":;' .config
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	$(SILENT)$(sed) -i -r -e 's:^.*(CT_LOG_TO_FILE).*$$:\1=y:;' .config
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	$(SILENT)$(sed) -i -r -e 's:^.*(CT_LOG_PROGRESS_BAR).*$$:\1=y:;' .config
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	$(SILENT)$(MAKE) -rf $(CT_NG) V=0 oldconfig
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	@$(ECHO) '  BUILD $(1)'
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	$(SILENT)$(MAKE) -rf $(CT_NG) V=0 build
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endef
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# ----------------------------------------------------------
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# Build samples for use (not regtest!)
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# Check that PREFIX is set if building samples
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ifneq ($(strip $(MAKECMDGOALS)),)
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ifneq ($(strip $(filter $(patsubst %,build-%,$(CT_SAMPLES)) build-all,$(MAKECMDGOALS))),)
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ifeq ($(strip $(CT_PREFIX)),)
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$(error Please set 'CT_PREFIX' to where you want to install generated toolchain samples!)
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endif
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endif # MAKECMDGOALS contains a build sample rule
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endif # MAKECMDGOALS != ""
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# Build a single sample
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$(patsubst %,build-%,$(CT_SAMPLES)):
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	$(call build_sample,$(patsubst build-%,%,$@),$(CT_PREFIX)/$(patsubst build-%,%,$@))
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# Build al samples
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build-all: $(patsubst %,build-%,$(CT_SAMPLES))
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# Build all samples, overiding the number of // jobs per sample
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build-all.%:
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	$(SILENT)$(MAKE) -rf $(CT_NG) V=$(V) $(shell echo "$(@)" |$(sed) -r -e 's|^([^.]+)\.([[:digit:]]+)$$|\1 CT_JOBS=\2|;')
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