Makefile.rules

#
#
# BIN				- 可执行文件
# LIBA				- 静态库
# LIBSO				- 动态库
#
# DEPEND_LIBS		- 依赖的其他第三方库
# DEPEND_MODULES	- 依赖的项目的其他模块
#
#

.PHONY: all clean

include $(ROOT)/Makefile.define

# Makefile自身
MAKEFILE_SELF	= $(addprefix $(CURDIR)/,$(firstword $(MAKEFILE_LIST)))

#
# 编译和链接选项
#
LDFLAGS			= -ggdb -Wl,-rpath=lib/
SOFLAGS 		=
CFLAGS			= -Wall -ggdb -MMD -fomit-frame-pointer -fstack-protector-all
CXXFLAGS		= -Wall -ggdb -MMD -fomit-frame-pointer -fstack-protector-all

# 支持64位的格式化方法
CFLAGS 			+= -D__STDC_FORMAT_MACROS
CXXFLAGS 		+= -D__STDC_FORMAT_MACROS

# 编译模式
ifeq ($(mode), release)
CFLAGS			+= -O2 -DNDEBUG
CXXFLAGS		+= -O2 -DNDEBUG
else
CFLAGS			+= -O0 -D__DEBUG__
CXXFLAGS		+= -O0 -D__DEBUG__
endif

# 产品名称
ifdef PRODUCT
CFLAGS 			+= -D__APPNAME__=\"$(PRODUCT)\"
CXXFLAGS 		+= -D__APPNAME__=\"$(PRODUCT)\"
endif

# 版本号
ifdef VERSION
CFLAGS			+= -D__APPVERSION__=\"$(VERSION)\"
CXXFLAGS		+= -D__APPVERSION__=\"$(VERSION)\"
MAJORVERSION 	= $(firstword $(subst ., ,$(VERSION)))
endif

# BIN
ifdef BIN
BIN				:= $(addprefix $(BIN_PATH)/, $(BIN))
CFLAGS			+=
CXXFLAGS		+=
LDFLAGS			+=
endif

# LIBA
ifdef LIBA
LIBA			:= $(addprefix $(LIB_PATH)/, $(LIBA))
CFLAGS			+=
CXXFLAGS		+=
endif

# LIBSO
ifdef LIBSO
LIBNAME 		:= $(LIBSO).so
SONAME 			:= $(LIBNAME).$(MAJORVERSION)
LIBSO			:= $(addprefix $(LIB_PATH)/, $(SONAME))
LIBSOLINKER 	:= $(addprefix $(LIB_PATH)/, $(LIBNAME))
CFLAGS			+= -fPIC
CXXFLAGS		+= -fPIC
SOFLAGS			+= -shared -Wl,-soname,$(SONAME)
endif

# 相对目录设置
# 添加lib/， include/, src/, 项目当前目录
LDFLAGS 		+= -L$(LIB_PATH) -L$(CURDIR)
CFLAGS			+= -I$(INCLUDE_PATH)/ -I$(SRC_PATH)/ -I$(CURDIR)
CXXFLAGS		+= -I$(INCLUDE_PATH)/ -I$(SRC_PATH)/ -I$(CURDIR)

# 依赖的其他模块
ifdef DEPEND_MODULES
DEPEND_MODULES	:= $(strip $(DEPEND_MODULES))
endif

# 依赖的第三方库
ifdef DEPEND_LIBS
DEPEND_LIBS		:= $(strip $(DEPEND_LIBS))
DEPEND_LIBS 	:= $(addprefix -l, $(DEPEND_LIBS))
LDFLAGS			+= $(DEPEND_LIBS)
endif

#
# 扫描当前模块下的所有文件
#

SCAN_PATH		+= $(DEPEND_MODULES) $(CURDIR)
ALL_SRCS		+= $(shell find $(SCAN_PATH) -type f -name "*.c" -o -name "*.cc" -o -name "*.cpp")
ALL_SRCS		+= $(ALL_GEN_SRCS)
ALL_SRCS		:= $(sort $(ALL_SRCS))
ALL_DEPS		= $(patsubst %.c,%.d,$(patsubst %.cc,%.d,$(patsubst %.cpp,%.d,$(ALL_SRCS))))
ALL_DEPS		:= $(subst $(SRC_PATH),$(BUILD_PATH),$(ALL_DEPS))
ALL_OBJS		= $(patsubst %.c,%.o,$(patsubst %.cc,%.o,$(patsubst %.cpp,%.o,$(ALL_SRCS))))
ALL_OBJS		:= $(subst $(SRC_PATH),$(BUILD_PATH),$(ALL_OBJS))
ALL_OBJS_PATH	= $(subst $(SRC_PATH),$(BUILD_PATH),$(dir $(ALL_SRCS)))
ALL_OBJS_PATH 	:= $(sort $(ALL_OBJS_PATH))


ifeq ($(MAKECMDGOALS), all)
-include $(ALL_DEPS)
endif

#
# 目标定义
#

# Default Target
all : $(ALL_OBJS_PATH) \
		$(ALL_GEN_SRCS) $(VERSION_FILE) \
		$(BIN) $(LIBA) $(LIBSO)

# Release Target
release : $(all)

# Clean Compile Enviroment
clean :
	$(RM) $(RMFLAGS) $(ALL_DEPS)
	@echo ""
	$(RM) $(RMFLAGS) $(ALL_OBJS)
	@echo ""
	$(RM) $(RMFLAGS) $(ALL_GEN_INCS) $(ALL_GEN_SRCS)
	$(RM) $(RMFLAGS) $(BIN) $(LIBA) $(LIBSO) $(LIBSOLINKER)

test :
	@echo $(MAKEFILE_SELF)
	@echo $(firstword $(MAKEFILE_LIST))
	@echo $(LIBNAME) $(SONAME) $(REALNAME)
	@echo $(LIBSO)

#
# 规则
#

# 目标规则
$(BIN) : $(ALL_OBJS)
	$(LINKER) $^ -o $@ $(LDFLAGS)
$(LIBA) : $(ALL_OBJS)
	$(AR) $^ -o $@
$(LIBSO) : $(ALL_OBJS)
	$(LINKER) $^ -o $@ $(SOFLAGS)
	$(RM) $(RMFLAGS) $(LIBSOLINKER)
	cd $(LIB_PATH); $(LINK) -s $(SONAME) $(LIBNAME)

# 内置规则
$(ALL_OBJS_PATH) :
	$(MKDIR) -p $@
$(VERSION_FILE) : $(MAKEFILE_SELF)
	@$(TOUCH) $@
$(BUILD_PATH)/%.o : $(SRC_PATH)/%.c
	$(CC) $(CFLAGS) -c $^ -o $@
$(BUILD_PATH)/%.o : $(SRC_PATH)/%.cc
	$(CXX) $(CXXFLAGS) -c $(filter %.cc,$^) -o $@
$(BUILD_PATH)/%.o : $(SRC_PATH)/%.cpp
	$(CXX) $(CXXFLAGS) -c $(filter %.cpp,$^) -o $@