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# Coreboot codebase analysis tool
#
# This makefile collects source usage information for all working targets.
#
# Written 7/2006 by Josiah England <josiah@lanl.gov>
#
# This file is subject to the terms and conditions of the GNU General
# Public License. See the file COPYING in the main directory of this
# archive for more details.
TOP := $(shell cd ../.. && pwd)
BUILD_BASE := $(TOP)/targets
IGNORE_ERRORS := 2>/dev/null # Comment out this line for some ugly verbosity
IGNORE_VENDORS := emulation momentum embeddedplanet motorola totalimpact
IGNORE_C := static.c# romcc.c
quote = "#"
VENDORS := $(shell ls -l $(TOP)/targets | grep ^d | grep -Eo [[:alnum:]_-]+$$$(foreach ignored, $(IGNORE_VENDORS), | grep -v $(ignored)))
#<VENDOR>_BOARDS assignments
$(foreach VENDOR, $(VENDORS), $(eval $(VENDOR)_BOARDS := $(shell ls $(TOP)/targets/$(VENDOR))))
TARGETS := $(foreach VENDOR, $(VENDORS), $(addprefix $(VENDOR)/, $($(VENDOR)_BOARDS)))
# The following delayed-evalutate variables are only to be used in rule commands.
CONFIG_MAINBOARD = $(TOP)/src/mainboard/$(shell grep ^mainboard $(dir $*)/Config.lb|grep -Eo [-[:alnum:]_/]+[[:space:]]?$$)
IMAGE_DIR = $(firstword $(shell grep -Eo ^romimage[[:space:]]+\"[[:alnum:]_-/]+ $(dir $*)/Config.lb|sed -r s/romimage[[:space:]]+\"//))
# Evaluate one assignment to variable "$1" from file "$2"
load_var = $(eval $(shell grep -E ^[[:space:]]*$1[[:space:]]*:*= $2 $(IGNORE_ERRORS)))
.PHONY: clean analysis
analysis: analysis.dat
gnuplot -persist '$<'
# Generate gnuplot data file
analysis.dat: analysis.txt
@ echo Writing gnuplot data file \($@\).
@ echo -e > $@ "# gnuplot dataset auto-generated $(shell date)" \
"\nset title \"Coreboot Codebase Analysis\"" \
"\nset style data boxes" \
"\nset style fill solid .5" \
$(foreach target, $(TARGETS), "\n"set label \"$(target)\" at $(words $(labels))$(eval labels += $(target)),-145 rotate front) \
"\nplot [-.5:] '-' t 'Source:' , '-' t 'Nested C:' , '-' t 'Headers:' , '-' t 'romcc Sources:' , '-' t 'romcc Headers:'"
@ grep -F "C files" $< | grep -Eo [[:digit:]]+ >> $@
@ echo e >> $@
@ grep -F "Nested C" $< | grep -Eo [[:digit:]]+ >> $@
@ echo e >> $@
@ grep -F "Headers" $< | grep -Eo [[:digit:]]+ | sed -r s/\([[:digit:]]+\)/'-'\\1/>> $@
@ echo e >> $@
@ grep -F "romcc C" $< | grep -Eo [[:digit:]]+ >> $@
@ echo e >> $@
@ grep -F "romcc H" $< | grep -Eo [[:digit:]]+ | sed -r s/\([[:digit:]]+\)/'-'\\1/>> $@
@ echo e >> $@
analysis.txt: $(foreach target, $(TARGETS), $(BUILD_BASE)/$(target)/$(shell grep ^target $(BUILD_BASE)/$(target)/Config.lb | grep -Eo [[:alnum:]_-]+[[:space:]]?$$)/analysis/info)
@ echo -e "\n\n"Compiling individual target analysis info into $@.
cat $? | tee -a $@
# Prevent automatic deletion of intermediate files
.SECONDARY: $(prepend $(foreach target, $(TARGETS), $(BUILD_BASE)/$(target)/$(shell grep ^target $(BUILD_BASE)/$(target)/Config.lb | grep -Eo [[:alnum:]_-]+$$)), /analysis, /analysis/c_files, /analysis/h_files, /analysis/info, /Makefile)
# FIXME: This rule is necessary even if the Makefile already exists.
%/Makefile:
@ echo \*\*\* Building target: $(notdir $*) \*\*\*
-@ cd $(TOP)/targets && ./buildtarget $(dir $*) 1>>build.log 2>>builderrors.log
@ echo -e >> $*/$(IMAGE_DIR)/Makefile "depend:\n\t"'@ makedepend -v -f- -- $$(CPPFLAGS) -- $$(SOURCES)'
%/analysis/c_files: %/Makefile
@ echo Analysis directory is $*/analysis
-@ mkdir $*/analysis $(IGNORE_ERRORS)
@ echo -n Finding C source files...
@ grep -Eo \\$$+[\(][A-Z_]+[\)][/-_[:alnum:]]+'\.c\>' $*/$(IMAGE_DIR)/Makefile | grep -v $(IGNORE_C) | sort -u > $@
@ echo " "Done.
# Grep for .c files #included within others (only one level deep).
# sed commands provide full pathname for included .c files, assuming two things:
# 1. If include statement has no directory component, the file is in same dir.
# 2. If included file has a directory component, it's base is from $(TOP)/src/.
%/analysis/nested_c_files: %/analysis/c_files
@ echo -n Finding nested .c includes...
$(eval c_files := $(shell cat $<))
@ grep -Eo '\#'include[[:space:]\"]+[/-_[:alnum:]]+'\.c' $(c_files) | sed s/\#include[[:space:]]// > $@.tmp
@ sed -r s/\([/-_[:alnum:]]+\\/\)\([-_[:alnum:]]+'.c'\):\"\([-_[:alnum:]]+'.c'$$\)/\\1\\2:' '\\1\\3/ $@.tmp | \
sed -r s/\([/-_[:alnum:]]+\\/\)\([-_[:alnum:]]+'.c'\):\"\([/-_[:alnum:]]+'.c'$$\)/\\1\\2:' '\$$\(TOP\)\\/src\\/\\3/ > $@
@ rm $@.tmp
@ echo " "Done.
%/analysis/h_files: %/analysis/c_files %/analysis/nested_c_files
@ echo -n Finding all included headers...
$(call load_var,TARGET_DIR, $*/Makefile.settings)
@ $(MAKE) -C $(TARGET_DIR)/$(IMAGE_DIR) depend $(IGNORE_ERRORS) | grep -v makedepend | grep -Eo [/-_[:alnum:]]+'\.h' | sort -u > $@ && \
$(MAKE) -C $(TARGET_DIR)/$(IMAGE_DIR) "SOURCES := $(shell grep [/-_[:alnum:]]+'.c' $(word 2, $?))" depend $(IGNORE_ERRORS) | grep -v makedepend | grep -Eo [/-_[:alnum:]]+'\.h' | sort -u >> $@
@ echo " "Done.
#%/auto.inc:
# Determine which sources use romcc by their inclusion in auto.inc #FIXME better
%/analysis/romcc_files: %/analysis/c_files %/analysis/nested_c_files
$(call load_var,TARGET_DIR, $*/Makefile.settings)
@ $(if $(findstring cache_as_ram, $(shell cat $<)), \
echo none, \
echo -n \* Uses romcc - making auto.inc... && \
$(MAKE) -iC $(TARGET_DIR)/$(IMAGE_DIR) auto.inc $(IGNORE_ERRORS) 1>/dev/null && \
echo " "to find sources that use romcc. && \
grep -Eo [/-_[:alnum:]]+'\.c' $(TARGET_DIR)/$(IMAGE_DIR)/auto.inc | sort -u) \
> $@
# Full pathnames of found files are gathered from nested_c_files and c_files.
%/analysis/romcc_sources: %/analysis/c_files %/analysis/nested_c_files %/analysis/romcc_files
@ echo -e $(foreach file, $(shell cat $(dir $@)/romcc_files), "\n"'$(firstword $(shell grep -Eho [/-_\$$\(\)[:alnum:]]+/'$(file)' $(dir $@)/nested_c_files $(dir $@)/c_files))') >$@
%/analysis/romcc_headers: %/analysis/romcc_sources
@ echo -n Finding headers used by any romcc source...
$(eval romcc_sources = $(shell cat $(dir $@)/romcc_sources))
$(call load_var,TARGET_DIR, $*/Makefile.settings)
@ $(MAKE) -C $(TARGET_DIR)/$(IMAGE_DIR) "SOURCES := $(romcc_sources)" depend $(IGNORE_ERRORS) | grep -v makedepend | grep -Eo [/-_[:alnum:]]+'\.'h | sort -u > $@
@ echo " "Done.
$(BUILD_BASE)/%/analysis/info: $(BUILD_BASE)/%/analysis/h_files $(BUILD_BASE)/%/analysis/romcc_headers
@ echo -e Target: $(subst /, , $(dir $*)) \
"\n"Uses $(if $(findstring cache_as_ram, $(shell grep -F '.c' $(dir $@)/c_files)),CAR,romcc) \
"\n"C files: $(shell grep -Eo [-_[:alnum:]]+'\.c' $(dir $@)/c_files $(dir $@)/nested_c_files $(dir $@)/romcc_sources | sort -u | grep -Fc '.c') \
"\n"Nested C: $(shell grep -Eo [-_[:alnum:]]+'\.c' $(dir $@)/nested_c_files | sort -u | grep -Fc '.c') \
"\n"Headers: $(shell grep -Eo [-_[:alnum:]]+'\.h' $(dir $@)/h_files $(dir $@)/romcc_headers | sort -u | grep -Fc '.h') \
"\n"romcc C: $(shell grep -Ec [-_[:alnum:]]+'\.c' $(dir $@)/romcc_sources) \
"\n"romcc H: $(shell grep -Ec [-_[:alnum:]]+'\.h' $(dir $@)/romcc_headers) \
"\n">> $@
clean-builds:
rm -rf $(foreach target, $(TARGETS), $(BUILD_BASE)/$(target)/$(shell grep ^target $(BUILD_BASE)/$(target)/Config.lb | grep -Eo [[:alnum:]_-]+[[:space:]]?$$))
clean:
rm -rf $(foreach target, $(TARGETS), $(BUILD_BASE)/$(target)/$(shell grep ^target $(BUILD_BASE)/$(target)/Config.lb | grep -Eo [[:alnum:]_-]+[[:space:]]?$$)/analysis) analysis.txt analysis.dat
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