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# variables
VCS_ROOT = $(shell git rev-parse --show-toplevel)
CWD = $(shell pwd)
# generate build rules from variables
# This makefile defines the following targets:
# - all: default goal, build all default targets
# generate objects from sources
# arg 1: target.SRCS
# arg 2: object suffix prefix
# returns: target.OBJS
objects = $(foreach f,$($1),$(addprefix build/,$(addsuffix $2.o,$(basename $f))))
# generate depends from .S .c .cpp sources
# arg 1: target.SRCS
# arg 2: dependency suffix prefix
# returns: target.DEPS
depends = $(foreach f,$(filter %.S %.c %.cpp,$($1)),$(addprefix build/,$(addsuffix $2.d,$(basename $f))))
# default target
.DEFAULT_GOAL := all
# TARGETBIN: binaries using the target architecture
$(foreach T,${TARGETBIN},\
$(eval $T.OBJS += $(call objects,$T.SRCS,_${ARCH}) ) \
$(eval $T.DEPS += $(call depends,$T.SRCS,_${ARCH}) ) \
$(eval -include $($T.DEPS) ) \
$(eval $T.elf: ${$T.OBJS} ) \
$(eval DEFAULT_TARGETS += $T.elf) \
)
# TARGETLIB: static libraries using the target architecture
$(foreach T,${TARGETLIB},\
$(eval $T.OBJS += $(call objects,$T.SRCS,_${ARCH}) ) \
$(eval $T.DEPS += $(call depends,$T.SRCS,_${ARCH}) ) \
$(eval -include $($T.DEPS) ) \
$(eval $T.a: ${$T.OBJS} ) \
$(eval DEFAULT_TARGETS += $T.a) \
)
# HOSTTARGETBIN: binaries using the host compiler
$(foreach T,${HOSTTARGETBIN},\
$(eval $T.OBJS += $(call objects,$T.SRCS,) ) \
$(eval $T.DEPS += $(call depends,$T.SRCS,) ) \
$(eval -include $($T.DEPS) ) \
$(eval $T: ${$T.OBJS}; @echo ' HOST LD $T'; ${HOST_CXX} ${HOST_LDFLAGS} -o $T ${$T.OBJS} ) \
$(eval DEFAULT_TARGETS += $T) \
)
list-targets:
@echo TARGETBIN
@echo ${TARGETBIN} | tr ' ' '\n' | xargs -n1 echo " "
@echo TARGETLIB
@echo ${TARGETLIB} | tr ' ' '\n' | xargs -n1 echo " "
@echo HOSTTARGETBIN
@echo ${HOSTTARGETBIN} | tr ' ' '\n' | xargs -n1 echo " "
@echo HOSTTARGETLIB
@echo ${HOSTTARGETLIB} | tr ' ' '\n' | xargs -n1 echo " "
@echo DEFAULT_TARGETS
@echo ${DEFAULT_TARGETS} | tr ' ' '\n' | xargs -n1 echo " "
@echo TESTS
@echo ${TESTS} | tr ' ' '\n' | xargs -n1 echo " "
%.info:
@echo "Target: $(basename $@)"
@echo " ARCH: ${ARCH}"
@echo " SRCS: ${$(basename $@).SRCS}"
@echo " OBJS: ${$(basename $@).OBJS}"
@echo " DEPS: ${$(basename $@).DEPS}"
@echo " LD ${${ARCH}_LDFLAGS}"
all: ${DEFAULT_TARGETS}
@echo " -> Built all in ${COMPONENT}"
# extra flags
${ARCH}_CFLAGS += -I${VCS_ROOT}/lib/libk \
-Werror=implicit-function-declaration
${ARCH}_CXXFLAGS += -I${VCS_ROOT}/lib/libk -Drestrict=__restrict__
# Target suffix rules
# -MD output makefile dependency rule
# -MT target change the target of the rule
# -MF file write the dependencies to file
%.a:
@echo ' AR $@'
@${${ARCH}_AR} ${${ARCH}_ARFLAGS} $@ $(filter %.o,$^)
build/%_${ARCH}.o: %.s
@echo ' AS $<'
@mkdir -p $(dir $@)
@${${ARCH}_AS} ${${ARCH}_ASFLAGS} -c -o $@ $<
build/%_${ARCH}.o: %.S
@echo ' CC $<'
@mkdir -p $(dir $@)
@${${ARCH}_CC} ${${ARCH}_CFLAGS} -MD -MT $@ -MF $(@:.o=.d) -c -o $@ $<
build/%_${ARCH}.o: %.c
@echo ' CC $<'
@mkdir -p $(dir $@)
@${${ARCH}_CC} ${${ARCH}_CFLAGS} -MD -MT $@ -MF $(@:.o=.d) -c -o $@ $<
%.elf:
@echo ' LD $@'
@${${ARCH}_LD} ${${ARCH}_LDFLAGS} -o $@ $^
@echo -n ' B2b '
@b2sum $@ | cut -d' ' -f1
# Host suffix rules
build/%.o: %.c
@echo ' HOST CC $<'
@mkdir -p $(dir $@)
@${HOST_CC} ${HOST_CFLAGS} -MD -MT $@ -MF $(@:.o=.d) -c -o $@ $<
build/%.o: %.cc
@echo ' HOST CXX $<'
@mkdir -p $(dir $@)
@${HOST_CXX} ${HOST_CXXFLAGS} -MD -MT $@ -MF $(@:.o=.d) -c -o $@ $<
.PHONY: test test.quiet valgrind valgrind.quiet clean.base FORCE
test: ${TESTS}
@echo " -> Running tests in $(CWD:${VCS_ROOT}/%=%)"
@[[ -z "${TESTS}" ]] || ${VCS_ROOT}/scripts/test_runner.py --verbose ${TESTS}
test.quiet: ${TESTS}
@echo " -> Running tests in $(CWD:${VCS_ROOT}/%=%)"
@[[ -z "${TESTS}" ]] || ${VCS_ROOT}/scripts/test_runner.py ${TESTS}
valgrind: ${TESTS}
@echo " -> Running valgrind on tests in $(CWD:${VCS_ROOT}/%=%)"
@[[ -z "${TESTS}" ]] || ${VCS_ROOT}/scripts/test_runner.py --verbose --valgrind ${TESTS}
valgrind.quiet: ${TESTS}
@echo " -> Running valgrind on tests in $(CWD:${VCS_ROOT}/%=%)"
@[[ -z "${TESTS}" ]] || ${VCS_ROOT}/scripts/test_runner.py --valgrind ${TESTS}
clean: FORCE
@echo " -> Cleaning $(shell pwd | xargs basename)"
@$(foreach V,$(filter %.OBJS, ${.VARIABLES}), rm -rf $($(V)))
@$(foreach V,$(filter %.DEPS, ${.VARIABLES}), rm -rf $($(V)))
@rm -rf *.a ${CLEAN_FILES}
@rm -rf ${TESTS}
FORCE: ;
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