g++ 编译指令备忘

g++编译指令备忘

-fpic:表明使用地址无关代码.适用于共享库(shared library).

-fPIC:表明使用地址无关代码,适用于动态连接(dynamic linking)。PIC:Position Independent Code. 

-shared:表明产生共享库,Linux下编译共享库时,必须加上-fPIC参数(常用-shared -fPIC)

-I:指定额外编译时头文件目录(-I../include 或者 -I ../include)

-L:指定额外编译时链接库目录(-L../lib 或者 -L ../lib),与运行时库目录不同

-g:指示编译器,在编译的时候,产生调试信息

-w:关闭所有警告,不建议使用

-s:Remove all symbol table and relocation information from the executable.

-o:指定目标名称,缺省的时候,gcc/g++ 编译出来的文件是a.out

-O[0~3]:编译器优化选项,1为默认值,0没有优化,3优化最大,优化越强编译时间越长,运行时可能更快

-Wall:一般使用该选项,允许发出GCC能够提供的所有有用的警告。也可以用-W{warning}来标记指定的警告

-Wl,-Bstatic:表明后续所有库为静态库(动态库静态库混编结合-Wl,-Bdynamic使用)

-Wl,-Bdynamic: 表明后续所有库为动态库

-Wl,--as-needed:去除没有使用的动态库

-Wl,--no-as-needed:不去除没有使用的动态库

-Wl,--rpath:指定运行时额外库目录(-Wl,--rpath=../lib)

     或者终端下export临时指定库目录

     或者在/etc/ld.so.conf中添加库目录路径,然后sudo ldconfig使修改可用

-Wl,--no-copy-dt-needed-entries : binutils2.22开始,其中的ld开始把--no-copy-dt-needed-entries默认打开,这样一来,ld不会再自动递归地解析链接的lib,而需要由用户来一一指定。

      因为链接库顺序错误示例:

        /usr/bin/ld: /tmp/ccbb2XTW.o: undefined reference to symbol 'AdjustLogLevel'
        ../lib/liblogsystem.so: error adding symbols: DSO missing from command line

-Wl,--copy-dt-needed-entries: 与--no-copy-dt-needed-entries相反,递归的链接库,不需要关心链接库的顺序。

 

参考:

Linux共享对象之编译参数fPIC

gcc/g++ 静态动态库 混链接

g++参数介绍

编译依赖顺序

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

示例:

#made by dyan
SOURCES = $(wildcard *.cpp)
OBJS = $(patsubst %.cpp,build/%.o,$(SOURCES)) ../tool/database/DataBase.o

SO = libvoiceInterface.so

INCLUDE_TOOL = ../tool
INCLUDE_DIR1 = ./include
INCLUDE_DIR2 = ../include
INCLUDE_DIR3 = ../tool/aiui
INCLUDE_DIR4 = ../tool/database
INCLUDE_DIR5 = ../tool/hpr

BUILD_DIR = ./build

LIBS_DIR = ../lib

CXX = g++

INCLUDES = -I$(INCLUDE_TOOL) -I$(INCLUDE_DIR1) -I$(INCLUDE_DIR2) -I$(INCLUDE_DIR4) -I$(INCLUDE_DIR5)
LIBS_COMPILE_DIR = -L$(LIBS_DIR)


DEBUG = -g -Wall
NODEBUG = -O2 -s
SO_COMPILE_FLAG = -shared -fPIC
SO_COMPILE = $(LIBS_COMPILE_DIR) $(SO_COMPILE_FLAG)


SO_FLAGS = $(SO_COMPILE) $(NODEBUG) $(INCLUDES)


#webtrc ns 源码
DIR_NS = ../tool/webrtc/webrtc_ns
SPEECHNS = $(DIR_NS)/noise_suppression.c\
 $(DIR_NS)/ns_core.c\
 $(DIR_NS)/fft4g.c

#编译libvoiceInterface.so所需的动态库
LIBS_INTERFACE = -lns -lvad -ljsoncpp -lmsc -llogsystem -lhpr -ldl -laiui -lpthread -lxml -lcurl -lasound -lcrypto -lmysqlclient -lnav#-ldl -lmysqlclient

all: $(SO)

$(SO): $(OBJS)
    $(CXX) $(SO_FLAGS) $^ $(LIBS_INTERFACE) -o $(LIBS_DIR)/$@ -std=c++11 

../tool/database/DataBase.o: ../tool/database/DataBase.cpp
    $(CXX) $(SO_FLAGS) -c $< -o $@ -std=c++11

build/%.o: %.cpp
    mkdir -p build
    $(CXX) $(SO_FLAGS) -c $< -o $@ -std=c++11

libns.so: $(SPEECHNS)
    $(CXX) $(SO_COMPILE_FLAG) -I$(INCLUDE_TOOL) $^ -o $(LIBS_DIR)/$@ -std=c++11



















C_FLAGS = $(INCLUDES) $(LIBS_COMPILE_DIR)
LIBS_RUN = -Wl,--rpath=$(LIBS_DIR)
DEMO_DIR = ../demo

LIBS_TEST = -ljsoncpp -ljson -llogsystem -lhpr -ldl -lmsc -laiui 
iFlyBase_LIB = -lmsc -ldl -llogsystem -ljsoncpp -ljson


LIBS_DEMO_INTERFACE = -ljsoncpp -lvad -lmsc -llogsystem -lhpr -ldl -laiui -lpthread -lxml -lcurl -lasound -lcrypto -lmysqlclient
#编译源码
SOURCES_INTERFACE = VoiceInterface1.cpp\
 ReadConfig.cpp\
 RecogIFlyOffline.cpp\
 RecogIFlyOnline.cpp\
 RecogBaiduOnline.cpp\
 IFlyBase.cpp\
 Text2pcmIFlyOffline.cpp\
 ResponseTulingOnline.cpp\
 ResponseOffline1.cpp\
 ../tool/database/DataBase.cpp\
 UdpClient.cpp\
 Audio.cpp\
 SpeechSample.cpp\
 SpeechNS.cpp\
 $(SPEECHNS)
 

#完成:未编译链接库,使用源代码编译的demo
demo_voiceInterface: $(DEMO_DIR)/demo_voiceInterface.cpp $(SOURCES_INTERFACE)
    mkdir -p bin
    $(CXX) -w $(C_FLAGS) $^ $(LIBS_DEMO_INTERFACE) $(LIBS_RUN) -o bin/$@ -std=c++11

#完成:使用libvoiceInterface.so的demo
demo_VI: $(DEMO_DIR)/demo_voiceInterface.cpp
    mkdir -p bin
    $(CXX) -Wl,--copy-dt-needed-entries $(C_FLAGS) $^ -g -lvoiceInterface $(LIBS_RUN) -o bin/$@ -std=c++11








#完成
demo_iFlyRecogOnline: $(DEMO_DIR)/demo_iFlyRecogOnline.cpp ReadConfig.cpp RecogIFlyOnline.cpp IFlyBase.cpp#iFlyBase.cpp RegexMatch.cpp VoiceInterface.cpp RecogIFlyOffline.cpp ResponseTulingOnline.cpp ResponseOffline.cpp 
    mkdir -p build
    $(CXX) -g $(C_FLAGS) $^ $(LIBS_TEST) $(LIBS_RUN) -o bin/$@ -std=c++11
#完成
demo_iFlyBase: $(DEMO_DIR)/demo_iFlyBase.cpp ReadConfig.cpp IFlyBase.cpp
    mkdir -p build
    $(CXX) -g $(C_FLAGS) $^ $(iFlyBase_LIB) $(LIBS_RUN) -o bin/$@ -std=c++11

#有问题
demo_iFlyResponseOnline: $(DEMO_DIR)/demo_iFlyResponseOnline.cpp ReadConfig.cpp IFlyBase.cpp ResponseIFlyOnline.cpp Listener.cpp
    mkdir -p build
    $(CXX) -g $(C_FLAGS) $^ $(LIBS_TEST) $(LIBS_RUN) -o bin/$@ -std=c++11
#完成
demo_text2wave:$(DEMO_DIR)/demo_text2wave.cpp IFlyBase.cpp ReadConfig.cpp Text2pcmIFlyOffline.cpp RecogIFlyOnline.cpp
    mkdir -p build
    $(CXX) -g $(C_FLAGS) $^ $(LIBS_TEST) $(LIBS_RUN) -o bin/$@ -std=c++11
#完成
demo_regexMatch: $(DEMO_DIR)/demo_regexMatch.cpp RegexMatch.cpp
    mkdir -p build
    $(CXX) -g $(C_FLAGS) $^ -lhpr -llogsystem $(LIBS_RUN) -o bin/$@ -std=c++11

#完成
LIBS_RECOGOFFLINE = -lxml -lmysqlclient -ljsoncpp -lhpr -llogsystem -lmysql -lmsc -lcurl# -ldataBaseInterface
demo_iFlyRecogOffline: $(DEMO_DIR)/demo_iFlyRecogOffline.cpp IFlyBase.cpp  RecogIFlyOffline.cpp ReadConfig.cpp# RegexMatch.cpp
    mkdir -p build
    $(CXX) -g -w $(C_FLAGS) $^ $(LIBS_RECOGOFFLINE) $(LIBS_RUN) -o bin/$@ -std=c++11

#完成
demo_tulingResponseOnline: $(DEMO_DIR)/demo_tulingResponseOnline.cpp ResponseTulingOnline.cpp ReadConfig.cpp 
    mkdir -p build
    $(CXX) -g -w $(C_FLAGS) $^ -lcurl -ljsoncpp -ljson -lhpr -llogsystem $(LIBS_RUN) -o bin/$@ -std=c++11

#抛弃
demo_iFlyResponseOffline: $(DEMO_DIR)/demo_iFlyResponseOffline.cpp ResponseOffline.cpp ReadConfig.cpp RegexMatch.cpp IFlyBase.cpp
    mkdir -p build
    $(CXX) -g -w $(C_FLAGS) $^ -lcurl -ljson -ljsoncpp -lhpr -lmsc -lmysqlclient -lmysql -llogsystem -ldataBaseInterface $(LIBS_RUN) -o bin/$@ -std=c++11

#完成
demo_ResponseOffline1:$(DEMO_DIR)/demo_ResponseOffline1.cpp ResponseOffline1.cpp ReadConfig.cpp ../tool/database/DataBase.cpp
    mkdir -p build
    $(CXX) -g -w $(C_FLAGS) $^ -lhpr -ljsoncpp -ljson -lmysqlclient -llogsystem $(LIBS_RUN) -o bin/$@ -std=c++11


#完成
demo_capture_sound: $(DEMO_DIR)/demo_capture_sound.cpp Audio.cpp SpeechSample.cpp $(SPEECHNS)
    mkdir -p build
    $(CXX) -g $(C_FLAGS) $^ -lvad -lasound -lpthread -o bin/$@ -std=c++11 $(LIBS_RUN)

#完成
demo_play_sound: $(DEMO_DIR)/demo_play_sound.cpp Audio.cpp
    mkdir -p bin
    $(CXX) -g $(C_FLAGS) $^ -lasound -lpthread -o bin/$@ -std=c++11 $(LIBS_RUN)
    
#
demo_udp_client: $(DEMO_DIR)/demo_udpClient.cpp UdpClient.cpp
    mkdir -p bin
    $(CXX) -g $(C_FLAGS) $^ -lhpr -o bin/$@ -std=c++11 $(LIBS_RUN)
#
demo_http_server: $(DEMO_DIR)/demo_httpServer.cpp HttpServer.cpp Chassis.cpp 
    mkdir -p bin
    $(CXX) -g $(C_FLAGS) $^ -lnav -ljsoncpp -lpthread -o bin/$@ -std=c++11 $(LIBS_RUN)

demo_chassis: $(DEMO_DIR)/demo_chassis.cpp Chassis.cpp
    mkdir -p bin
    $(CXX) -g $(C_FLAGS) $^ -lnav -lpthread -o bin/$@ -std=c++11 $(LIBS_RUN)

# test: test.cpp ../tool/database/DataBase.cpp ReadConfig.cpp
#     mkdir -p build
#     $(CXX) -g -w $(C_FLAGS) $^ -lcurl -ljsoncpp -ljson -lhpr -lmysqlclient -lmysql -llogsystem $(LIBS_RUN) -o bin/$@ -std=c++11

# test2: test2.cpp #../tool/database/DataBase.cpp
#     $(CXX) -g $(C_FLAGS) $^ -ljsoncpp -ldataBaseInterface -lhpr -lmysqlclient $(LIBS_RUN) -o test2 -std=c++11
    

.PYHON: all clean #test demo_iFlyBase demo_iFlyResponseOnline demo_text2wave demo_iFlyRecogOnline demo_regexMatch demo_iFlyRecogOffline demo_tulingResponseOnline

clean:
    rm -rf build/*.o ../lib/libvoiceInterface.so

 

 

 

 

posted @ 2018-06-25 13:39  dyan1024  阅读(332)  评论(0编辑  收藏  举报