makefile: make makefile recursive

1 files changed, 36 insertions, 3 deletions

diff --git a/libk/makefile b/libk/makefile
index b2a91c1..9063f72 100644
--- a/libk/makefile
+++ b/libk/makefile
@@ -1,5 +1,38 @@
-CXX_OBJ += libk/string/string.o libk/string/integerview.o \
-	   libk/stdlib/abort.o libk/stdlib/console.o libk/stdlib/memory.o
+CXX_OBJ = string/string.o string/integerview.o \
+	  stdlib/abort.o stdlib/console.o stdlib/memory.o
+CXX_OBJ := $(addprefix $(OBJ_DIR)/, $(CXX_OBJ))
+CXX_DEP = $(CXX_OBJ:%.o=%.d)
+CXX_JSON = $(CXX_OBJ:.o=.json)
 
-CXX_TEST_OBJ += libk/test/types.o libk/test/string.o libk/test/result.o libk/test/quicksort.o
+TEST_CXX_OBJ = test/types.o test/string.o test/result.o test/quicksort.o
+TEST_CXX_OBJ := $(addprefix $(OBJ_DIR)/, $(TEST_CXX_OBJ))
+TEST_CXX_DEP = $(TEST_CXX_OBJ:%.o=%.d)
 
+.PHONY: all test clean
+all: $(OBJ_DIR)/libk.a
+test: $(TEST_CXX_OBJ)
+
+-include $(CXX_DEP)
+$(CXX_OBJ) : $(OBJ_DIR)/%.o : %.cc
+	@mkdir -p $(@D)
+	@echo "  CXX  $<"
+	@$(CXX) -target $(TARGET) $(CXX_FLAGS) $(CXX_INCLUDE) -MMD -MJ$(subst .o,.json,$@) -c $< -o $@
+
+%/libk.a: $(CXX_OBJ)
+	@echo "  AR   $(@F)"
+	@$(AR) $(AR_FLAGS) rcs $@ $(CXX_OBJ)
+
+# constexpr tests
+-include $(TEST_CXX_DEP)
+$(TEST_CXX_OBJ): $(OBJ_DIR)/%.o : %.cc
+	@mkdir -p $(@D)
+	@echo "  TEST $<"
+	@$(TEST_CXX) -target $(TARGET) $(TEST_CXX_FLAGS) $(CXX_INCLUDE) -MMD -c $< -o $@
+
+compile_commands.json: $(CXX_JSON)
+	@echo [ > $@
+	@cat $(CXX_JSON) >> $@
+	@echo ] >> $@
+
+clean:
+	@rm -f $(CXX_OBJ) $(CXX_TEST_OBJ) $(OBJ_DIR)/libk.a