patdz

c, c++用makefile编译工程

基本思路:

最外层有三个文件: Makefile, Make.share, Make.include.

每个工程目录中都有一个Makefile文件.

其中最外层的Makefile是外壳部分.需要调用者修改里面的某些参数,例如编译平台,要编译的子目录集合,每个工程都要用到的头文件,编译参数等,设置完成后,会进入每个子目录,执行当前子目录中的Makefile文件.

Make.share和Make.include是供每个工程目中Makefile来包含的,里面包含标准Makefile机制所需要文件的代码.

工程目录下的Makefile : 设置每个工程自己的项目类型(可执行程序,静态库,动态库)和工程模块的名字,自己独特的头文件目录,编译、链接参数.在文件的开头包含最外层的Makefile.include,在文件结尾包含最外层的Makefile.share.

最外层的Makefile文件 :

##################################################################################################

# The target platform information.

# You can change the MACRO 'PLATFORM' or use make : make PLATFORM=[IOS, LINUX, MACOS]

# LINUX MACOS IOS

PLATFORM= LINUX

export PLATFORM

# SUB DIRS

SUBDIRS:= \

./hello/hellostaticlib \

./hello/hellodynamiclib \

./hello

# ROOT DIR

ROOTDIR:=$(shell pwd)

export ROOTDIR

# Global includes

GLOBAL_INCLUDES:= -I$(ROOTDIR)/hello/include

export GLOBAL_INCLUDES

# Global flags for compile

GLOBAL_CCXXFLAGS:= -g -DUNICODE -D_UNICODE

export GLOBAL_CCXXFLAGS

# Target path

TARGET_PATH:=$(ROOTDIR)/target

export TARGET_PATH

# IOS SDK Version

IOSSDK_V= 5.0

export IOSSDK_V

#IOS CPU

IOS_ARCH= armv6 armv7 i386

export IOS_ARCH

##################################################################################################

SUPPORTCMDS:= all objs clean cleanall rebuild

export SUPPORTCMDS

.PHONY: SUPPORTCMDS ioscombine

$(SUPPORTCMDS):

ifeq ($(PLATFORM), IOS)

for subdir in$(SUBDIRS); do \

echo "Making " $$subdir; \

for arch in$(IOS_ARCH); do \

echo "For " $$arch; \

(cd $$subdir && make clean && make $@ ARCH=$$arch ); \

done; \

done;

else

for subdir in$(SUBDIRS); do \

echo "Making " $$subdir; \

(cd $$subdir && make $@); \

done;

endif

TS=$(notdir $(wildcard $(TARGET_PATH)/$(firstword $(IOS_ARCH))/*))

TSA=$(foreach arch, $(IOS_ARCH), $(foreach ts, $(TS), $(TARGET_PATH)/$(arch)/$(ts)))

ioscombine:

for ts in$(TS); do \

echo "Make " $$ts; \

echo$(TSA) | tr ' ' '\n'| grep $$ts | tr '\n' ' ' | xargs echo; \

echo$(TSA) | tr ' ' '\n'| grep $$ts | tr '\n' ' ' | xargs lipo -create -output$(TARGET_PATH)/$$ts; \

done;

最外层的Makefile文件需要修改的有这几个地方:

PLATFORM : 设置目标的平台. LINUX 代表通用linux系统; MACOS 代表mac系统; IOS 代表IPhone,IPad等IOS设备.

SUBDIRS : 设置工程包含的子模块,每个子模块目录下都有自己的Makefile文件.

GLOBAL_INCLUDES : 项目中各模块都会用到的头文件.

GLOBAL_CCXXFLAGS : 项目中各个模块都会用到的编译连接标志.

TARGET_PATH : 如果有必要,可以修改目标binarary的输出路径.

IOSSDK_V : 如果是IOS系统,需要设置编译IOS程序需要的SDK版本号.

IOS_ARCH : 如果是IOS系统,需要设置编译IOS程序需要支持的CPU类型.最后要调用build ioscombine来生成最终目标文件.

最外层的Make.include文件:

##################################################################################################

ifneq ($(ARCH), "")

TARGET_PATH_R:= $(TARGET_PATH)/$(ARCH)

endif

最外层的Make.include文件只是修正TARGET_PATH(即目标路径),如果设置了ARCH(CPU类型),依次把不同类型CPU的输入文件放入各自对应的目录中.只是对IOS类型有效.因此暂时IOS才会用到多CPU支持.

最外层的Make.share文件:

##################################################################################################

# The source file types (headers excluded).

# At least one type should be specified.

# The valid suffixes are among of .c, .C, .cc, .cpp, .CPP, .c++, .cp, or .cxx.

SRCEXTS:=.c .cpp

# DONT Modify.

SRCDIR:=./

# The include dirs.

INCLUDES_ALL :=$(GLOBAL_INCLUDES)

INCLUDES_ALL +=$(INCLUDES)

# The flags used for c and c++.

# Wall -Werror # show all warnings and take them as errors

# -fvisibility=hidden # hide the so's export functions

CCXXFLAGS_ALL:=$(GLOBAL_CCXXFLAGS)

CCXXFLAGS_ALL +=$(CCXXFLAGS)

# The compiling flags used only for C.

# If it is a C++ program, no need to set these flags.

# If it is a C and C++ merging program, set these flags for the C parts.

CFLAGS_ALL :=

CFLAGS_ALL +=$(CFLAGS)

# The compiling flags used only for C++.

# If it is a C program, no need to set these flags.

# If it is a C and C++ merging program, set these flags for the C++ parts.

CXXFLAGS_ALL :=

CXXFLAGS_ALL +=$(CXXFLAGS)

# The library and the link options ( C and C++ common).

OFLAGS_ALL :=

OFLAGS_ALL +=$(OFLAGS)

# The EXT-OBJS that include to the target.

EXOBJS_ALL :=

EXOBJS_ALL +=$(EXOBJS)

# The target file name

TARGET:=$(TARGETNAME).exe

ifeq ($(TYPE), staticlib)

TARGET:= lib$(TARGETNAME).a

endif

ifeq ($(TYPE), dynamiclib)

TARGET := lib$(TARGETNAME).dll

OFLAGS_ALL += -shared -fPIC

endif

TARGET:= $(TARGET_PATH_R)/$(TARGET)

# Modify for different paltform.

## linux

ifeq ($(PLATFORM), LINUX)

CCXXFLAGS_ALL += -DLINUX

endif

## mac os

ifeq ($(PLATFORM), MACOS)

CCXXFLAGS_ALL += -DMACOS

RM= rm

endif

## ios

ifeq ($(PLATFORM), IOS)

CCXXFLAGS_ALL += -DIOS

RM= rm

ifeq ($(ARCH), i386)

DEVROOT=/Developer/Platforms/iPhoneSimulator.platform/Developer

SDKROOT=$(DEVROOT)/SDKs/iPhoneSimulator$(IOSSDK_V).sdk

else

DEVROOT=/Developer/Platforms/iPhoneOS.platform/Developer

SDKROOT=$(DEVROOT)/SDKs/iPhoneOS$(IOSSDK_V).sdk

endif

CC=$(DEVROOT)/usr/bin/gcc -arch$(ARCH)

CXX=$(DEVROOT)/usr/bin/g++ -arch$(ARCH)

CCXXFLAGS_ALL+= -isysroot $(SDKROOT)

OFLAGS_ALL += -isysroot$(SDKROOT)

endif

# Stable Section: usually don't need to be changed. But you can add more.

#=============================================================================

SHELL = /bin/sh

SOURCES1=$(foreach d, $(SRCDIR),$(wildcard $(addprefix $(d)*,$(SRCEXTS))))

SOURCES =$(filter-out $(EXCLUDESRCS), $(SOURCES1))

OBJS =$(foreach x,$(SRCEXTS), $(patsubst %$(x),%.o,$(filter %$(x),$(SOURCES))))

DEPS =$(patsubst %.o,%.d,$(OBJS))

.PHONY: SUPPORTCMDS

all:$(TARGET)

# Rules for creating the dependency files (.d).

#---------------------------------------------------

%.d: %.c

@$(CC) -MM -MD$(INCLUDES_ALL)$(CCXXFLAGS_ALL)$(CFLAGS_ALL) $<

%.d: %.C