CC=gcc
NASM=nasm
LD=ld

ifeq ($(DEBUG), 1)
	CFLAGS=-ggdb -fPIC -Wall -DDEBUG
	LDFLAGS=-g
	NASMCFLAGS=-g -f elf64
	#PYTHON=python3dm
	PYTHON=python3-dbg
else
	CFLAGS=-fPIC -Wall -Werror
	LDFLAGS=-s
	NASMCFLAGS=-f elf64
	PYTHON=python3
endif

PYTHON_CONFIG=$(PYTHON)-config
PYTHON_CFLAGS=`$(PYTHON_CONFIG) --includes` `$(PYTHON_CONFIG) --cflags`
PYTHON_LDFLAGS=-shared  -fPIC `$(PYTHON_CONFIG) --libs` `$(PYTHON_CONFIG) --ldflags|cut -d' ' -f1,2`

all: .deps pyrpn.so

pyrpn.so: python_pyrpn.o python_rpnexpr.o rpn_lib.o rpn_jit.o rpn_parse.o rpn_mutation.o rpn_if.o rpn_if_default.o rpn_ifs.o
	$(LD) $(LDFLAGS) $(PYTHON_LDFLAGS) -o $@ $^

python_pyrpn.o: python_pyrpn.c python_rpnexpr.h python_rpnexpr.o rpn_jit.o
	$(CC) $(PYTHON_CFLAGS) $(CFLAGS) -c $<

python_rpnexpr.o: python_rpnexpr.c python_rpnexpr.h rpn_jit.o
	$(CC) $(PYTHON_CFLAGS) $(CFLAGS) -c $<

rpn_jit.o: rpn_jit.c rpn_jit.h rpn_parse.o rpn_lib.o
	$(CC) $(CFLAGS) -c $<

rpn_parse.o: rpn_parse.c rpn_parse.h rpn_lib.o
	$(CC) $(CFLAGS) -c $<

rpn_mutation.o: rpn_mutation.c rpn_mutation.h rpn_parse.o
	$(CC) $(CFLAGS) -c $<

rpn_if.o: rpn_if.c rpn_if.h rpn_jit.o
	$(CC) $(CFLAGS) -c $<

rpn_if_default.o: rpn_if_default.c rpn_if_default.h rpn_if.o
	$(CC) $(CFLAGS) -c $<

rpn_ifs.o: rpn_ifs.c rpn_ifs.h rpn_if.o
	$(CC) $(CFLAGS) -c $<

rpn_lib.o: rpn_lib.asm rpn_lib.h
	$(NASM) $(NASMCFLAGS) -o $@ $<

# Doxygen documentation
doc: doc/.doxygen.stamp

Doxyfile: Doxyfile.mk
	echo "PROJECT_NUMBER        = `cat VERSION`_rev:`git rev-parse --short HEAD`" > $@
	cat $< >> $@

doc/.doxygen.stamp: $(wildcard *.c) $(wildcard *.h) Doxyfile
	touch doc/.doxygen.stamp
	doxygen 1>/dev/null
	echo "Documentation in file://`pwd`/doc/html/index.html"

# Dependencies checking
.deps: check_deps.sh
	sh check_deps.sh "$(CC)" "$(LD)" "$(NASM)" "$(PYTHON)" "$(PYTHON_CONFIG)" && touch .deps

.PHONY: clean distclean checks runtest unittest benchmark

checks: runtest unittest benchmark

benchmark: pyrpn.so
	PYTHONPATH=`pwd` $(PYTHON) tests/benchmark.py 0x200 0x3000

unittest: pyrpn.so
	PYTHONPATH=`pwd` $(PYTHON) -m unittest -v

runtest:
	make -C tests

clean:
	-rm -fv *.o pyrpn.so test;\
	rm -fRv doc/.doxygen.stamp doc/* Doxyfile;\
	make -C tests clean

distclean: clean
	-rm -vf .deps;\
	rm -Rvf tests/__pycache__;