• 如何使用standalone toolchain移植含STL与线程的程序


    I try to build my program without jni ndk-build , but by a standalne arm-kind cross compliers way .
    However ,after I write a simple sample , using STL and thread function with my own Makefile , and I do make command, I encount all kind of weird program .

    • error 0: in a dynamic library way
      [dengwei@localhost ~]$ make
      arm-marvell-linux-gnueabi-g++ hi.cpp -o hi1234 -lpthread
      [dengwei@localhost platform-tools]$ adb push ~/hi1234 /data/
      [dengwei@localhost platform-tools]$ adb shell
      # /data/hi1234
      /data/hi1234: not found

      analyse: libpthread.so may not found.

    • error 1: in a static library way
      arm-marvell-linux-gnueabi-g++ -static hi.cpp -o hi1234 -lpthread
      # /data/hi1234
      terminate called after throwing an instance of '__gnu_cxx::__concurrence_broadcast_error' what(): __gnu_cxx::__concurrence_broadcast_error
      [1] Aborted /data/hi1234

      analyse: libpthread.a doesn't may real match and other unknow reason
      some say add "-Wl,--whole-archive -lpthread -Wl,--no-whole-archive -lc " in complie command will fix the problem ,but it does NOT work for me.


    I change cross compliers to use standalone cross compliers : ref to $(NDK)/docs/STANDALONE-TOOLCHAIN.html

    ==============thread succeed this time===============================

    $make
    arm-linux-androideabi-g++ hi.o -static -L /home/dengwei/standalone-toolchain/sysroot/usr/lib/libthread_db.a -L /home/dengwei/standalone-toolchain/arm-linux-androideabi/lib/libsupc++.a -lstdc++ -DTHREAD -o hi1234

    ---------------result:------------------------------

    # ./hi1234
    hello world
    thread begin
    thread end
    #
    # cat /mnt/sdcard/345tt abcedfg#


    But STL still can NOT work. I found solution here in stackoverflow

    "I think "APP_STL:=stlport_static" must be in Application.mk file. Create a "Application.mk" file and write "APP_STL:=stlport_static" in it."

    #include <cerrno>
    #include <cstddef>
    #include <iostream>
    using namespace std;
    int main(void)
    {
        string sss;
        const char *hs= "this is a string";
        sss.assign(hs, strlen(hs));
        printf("%s\n", sss.c_str());
        return 0;
    }


    [dengwei@localhost jni]$ ndk-build
    Compile++ thumb : test-libstl <= test-libstl.cpp
    Executable : test-libstl
    Install : test-libstl => libs/armeabi/test-libstl

    But this sample is still build in JNI ,NOT a standalone version .
    I begin to find I did NOT fully unstand configure and Makefile

    Here comes the solution:

    $export PATH=/home/dengwei/standalone-toolchain/bin:$PATH && export CC=arm-linux-androideabi-gcc && export CXX=arm-linux-androideabi-g++ 
    Makefile:
    STANDALONE_PATH=/home/dengwei/standalone-toolchain
    LDFLAGS= -static 
    LIBS+= -L /home/dengwei/standalone-toolchain/sysroot/usr/lib/libthread_db.a
    LIBS+= -L /home/dengwei/standalone-toolchain/arm-linux-androideabi/lib/libsupc++.a


    INCLUDES= -I $(STANDALONE_PATH)/arm-linux-androideabi/include/c++/4.6/
    INCLUDES+= -I $(STANDALONE_PATH)/arm-linux-androideabi/include/c++/4.6/arm-linux-androideabi


    CXXFLAGS=  -DTHREAD
    CXXFLAGS+=  -DUSE_STL
    CXXFLAGS+= $(INCLUDES) 

    #CXXFLAGS+= -Wl,--whole-archive -lpthread -Wl,--no-whole-archive -lc

    OBJS=hi.o
    PROGRAM=hi1234

    $(PROGRAM):$(OBJS)
             $(CXX)  $(OBJS) $(LDFLAGS) $(LIBS) $(CXXFLAGS) -o $@
    clean:
            rm $(OBJS) -rf
            rm $(PROGRAM) -rf
    INCLUDES= -I $(STANDALONE_PATH)/arm-linux-androideabi/include/c++/4.6/
    INCLUDES+= -I $(STANDALONE_PATH)/arm-linux-androideabi/include/c++/4.6/arm-linux-androideabi

    above are using for find iostream and bit/c++_config.h

    LIBS+= -L /home/dengwei/standalone-toolchain/sysroot/usr/lib/libthread_db.a
    LIBS+= -L /home/dengwei/standalone-toolchain/arm-linux-androideabi/lib/libsupc++.a

    above are using for static complie

    ==============stl succeed this time===============================

    [dengwei@localhost testNSA]$ make
    arm-linux-androideabi-g++  hi.o -static  -L /home/dengwei/standalone-toolchain/sysroot/usr/lib/libthread_db.a -L /home/dengwei/standalone-toolchain/arm-linux-androideabi/lib/libsupc++.a -DTHREAD  -DUSE_STL -I /home/dengwei/standalone-toolchain/arm-linux-androideabi/include/c++/4.6/ -I /home/dengwei/standalone-toolchain/arm-linux-androideabi/include/c++/4.6/arm-linux-androideabi  -o hi1234
    # /data/hi1234
    hello world
    this is a string type
    thread begin
    thread end
    #
    # cat /mnt/sdcard/345tt

    abcedfg#  

     
    OK, I'm done here.
    So , I need to write articles about configure and Makefile.

     EOF

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  • 原文地址:https://www.cnblogs.com/no7dw/p/2704411.html
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