linux下使用objcopy与-g进行编译的方法

ifeq ($(debug), 0)
	DEBUG_FLAG	= -O2 -g
	OBJ_DIR		= release
	BUILD_CONFIG    = RELEASE
	DBG_CONFIG	= -DRWDEBUG=0 -D_RWCONFIG=m
else
	DEBUG_FLAG	= -g
	OBJ_DIR		= debug
	BUILD_CONFIG	= DEBUG
	DBG_CONFIG	= -D_DEBUG -DRWDEBUG=1 -D_RWCONFIG=md
endif

$(MOD_BIN):$(MOD_OBJ)
	@mkdir -p $(dir $(MOD_BIN)) $(DBG_PATH)
	@if [ -h "$(LibDir)/$(notdir $(MOD_BIN) )" ]; then rm -f "$(LibDir)/$(notdir $(MOD_BIN) )"; fi
	$(CXX) -o $(MOD_BIN) $(MOD_OBJ) $(DEBUG_FLAG) $(LD_SO_FLAGS) $(LINKFLAGS) 2>>errlog
	@objcopy --only-keep-debug $(MOD_BIN) $(DBG_PATH)/$(basename $(notdir $@)).dbg
	@objcopy --strip-debug $(MOD_BIN)
	@objcopy --add-gnu-debuglink=$(DBG_PATH)/$(basename $(notdir $@)).dbg $(MOD_BIN)
	@if [ ! -h "$(LibDir)/$(notdir $(MOD_BIN) )" ]; then cp $(shell cd $(dir $(MOD_BIN));pwd)/$(notdir $(MOD_BIN)) $(LibDir)/$(notdir $(MOD_BIN) ); fi