# Standard housekeeping
.PHONY: 	all debug release system bins libs tests clean target install
.SUFFIXES:

all: targets

debug: CC     := clang
debug: CFLAGS += -DDEBUG -g -fsanitize=address
debug: INCS   := -I $(INC_DIR)
debug: ELIBS  := -fsanitize=address
debug: STATIC :=
debug: CINIT  :=
debug: CFINI  :=
debug: targets

release: CFLAGS += -O2 -mtune=native -flto #-DNDEBUG
release: targets

# Targets & array of sources & intermediates
SRCS :=
OBJS :=
DEPS :=

LIBS :=
BINS :=
TEST :=

GENS :=

# generic rules
%.a: %.o
	$(ARCHIVE)

%: %.o
	$(LINK)

# explicit system layer
DIR := sys
include $(DIR)/rules.mk

# userland rules
$(OBJ_DIR)/%.o: $(SRC_DIR)/%.c
	$(COMPILE)

$(OBJ_DIR)/%.o: $(SRC_DIR)/%.s
	$(ASSEMBLE)

$(OBJ_DIR)/%: $(SRC_DIR)/%.c
	$(COMPLINK)

# iterate through source directory tree
DIR := src
include $(DIR)/rules.mk

system: $(RUNTIME)
bins:  system $(BINS)
tests: system $(TEST)
targets: libs bins tests

clean:
	@echo removing system layer
	@rm -f $(SYS_OBJS) $(SYS) $(RT) $(RT_OBJS) $(RT1) $(RTI) $(RTN)
	@echo removing object files
	@rm -f $(OBJS)
	@echo removing dependency files
	@rm -f $(DEPS)
	@echo removing generated source files 
	@rm -f $(GENS)
	@echo removing libraries
	@rm -f $(LIBS)
	@echo removing binaries
	@rm -f $(BINS)
	@echo removing unit tests
	@rm -f $(TEST)

install: targets
	@echo installing executables
	@if [ -n $$BINS ]; then\
		install $(BINS) $(BIN_DIR);\
	fi
	@echo installing libraries
	@if [ -n $$LIBS ]; then\
		install $(LIBS) $(LIB_DIR);\
	fi
	@echo installing terminfo
	@tic -sx $(SRC_DIR)/cmd/term/term.info

database:
	compiledb make -j4