C_APPS := init sh uname uptime hello ps ls args cat stat su session date mkdir screen
CXX_APPS := hello-cpp

APPS_DIR := $(LUNA_ROOT)/apps
APPS_SRC := $(APPS_DIR)/src
APPS_BIN := $(APPS_DIR)/bin

C_APPS_PATH := $(patsubst %, $(APPS_BIN)/%, $(C_APPS))
CXX_APPS_PATH := $(patsubst %, $(APPS_BIN)/%, $(CXX_APPS))

CFLAGS := -Wall -Wextra -Werror -Os -fno-asynchronous-unwind-tables -ffunction-sections -fdata-sections -Wl,--gc-sections
CXXFLAGS := -fno-exceptions

$(APPS_BIN)/%: $(APPS_SRC)/%.c
	@mkdir -p $(@D)
	@$(CC) $(CFLAGS) -o $@ $^
	@echo "  CC $^"

$(APPS_BIN)/%: $(APPS_SRC)/%.cpp
	@mkdir -p $(@D)
	@$(CXX) $(CFLAGS) $(CXXFLAGS) -o $@ $^
	@echo "  CXX $^"

build: $(C_APPS_PATH) $(CXX_APPS_PATH)

install: $(C_APPS_PATH) $(CXX_APPS_PATH)
	@mkdir -p $(LUNA_ROOT)/initrd/bin
	@cp $(C_APPS_PATH) $(CXX_APPS_PATH) $(LUNA_ROOT)/initrd/bin
	@echo "  INSTALL $(C_APPS) $(CXX_APPS)"
	@chmod a+s $(LUNA_ROOT)/initrd/bin/su

clean:
	rm -f $(APPS_BIN)/*