移植java虛擬機(jī)到mini2440

風(fēng)城少主

                                一、選用sun的phoneme
    https://phoneme.dev.java.net/
二、下載
    http://download.java.net/mobileembedded/phoneme/advanced/phoneme_advanced-mr2-dev-src-b97-20_nov_2008.zip
三、解壓
    unzip phoneme_advanced-mr2-dev-src-b97-20_nov_2008.zip
四、修改makefile
    cd phoneme_advanced_mr2/cdc/build/linux-arm-generic
    gedit GNUmakefile
    修改 CVM_TARGET_TOOLS_PREFIX=/usr/local/arm/4.3.2/bin/arm-linux- 為自己的交叉編譯器的地址   
    修改 USE_AAPCS ?= false 為 true
五、輸出PATH
    export PATH=/usr/local/arm/4.3.2/bin/:$PATH                     為自己的交叉編譯器的地址
六、編譯
    make  
七、如果是使用ubuntu的朋友，可能要安裝sun-java6-jdk和另外的一兩個工具
    Java SDK安裝配置
    http://wiki.ubuntu.org.cn/Java%E5%AE%89%E8%A3%85%E9%85%8D%E7%BD%AE
    另外的一兩個工具可以通過 apt-get install 來安裝（出錯時(shí)會提醒的了，具體我忘了，沒有記錄）
八、出錯
    ../../src/linux-arm/javavm/runtime/segvhandler_arch.c:45:26: error: asm/ucontext.h: No such file or directory
    ../../src/linux-arm/javavm/runtime/segvhandler_arch.c: In function 'handleSegv':
    ../../src/linux-arm/javavm/runtime/segvhandler_arch.c:224: error: dereferencing pointer to incomplete type
    ../../src/linux-arm/javavm/runtime/segvhandler_arch.c:285: error: dereferencing pointer to incomplete type
    ../../src/linux-arm/javavm/runtime/segvhandler_arch.c:285: error: dereferencing pointer to incomplete type
    ../../src/linux-arm/javavm/runtime/segvhandler_arch.c:286: error: dereferencing pointer to incomplete type
    ../../src/linux-arm/javavm/runtime/segvhandler_arch.c:294: error: dereferencing pointer to incomplete type
    修改 segvhandler_arch.c 文件
    gedit ../../src/linux-arm/javavm/runtime/segvhandler_arch.c
    修改
    #define ucontext asm_ucontext
    #include
    為
    //#define ucontext asm_ucontext     //注釋掉這句
    #include             //去掉arm/
九、編譯
    make  
    編譯成功！
    ls
    可以看到在當(dāng)前目錄有
    bin   lib   testclasses.zip
十、測試
    1)、拷貝上面三個文件與文件夾到開發(fā)板/home/j2me目錄
    2)、在開發(fā)板/etc/init.d/rcS文件里加入如下
        JAVA_HOME=/home/j2me
        export PATH=$JAVA_HOME/bin:$PATH
        export CLASSPATH=.:$JAVA_HOME/lib
    3)、經(jīng)典的HelloWorld
        cd /home/j2me/bin
        ./cvm -cp ../testclasses HelloWorld
   
        可以看到輸出了 HelloWorld.
    4)、來個全面測試
        ./cvm -cp ../testclasses.zip Test
        *Number of command line arguments: 0
        Starting test1
        ...recurse
        ...recurse
        ...recurse
        ...link
        ...link
        ...link
        Starting test1 again
        ...recurse
        ...recurse
        ...recurse
        ...link
        ...link
        ...link
        test6: Caught inner java.lang.NullPointerException
        test6: Caught outer java.lang.NullPointerException
        Testing Array Copy
        *TestE exception thrown because "I'm feeling Testy"
        * threw java.lang.ExceptionInInitializerError
        * threw java.lang.NoClassDefFoundError: StaticE
        c1 = class [LTest;
        c2 = class [[LTest;
        c3 = class [LC;
        c4 = class [[LC;
        c1.modifiers = 1041
        c2.modifiers = 1041
        c3.modifiers = 1040
        c4.modifiers = 1040
        *FloatMIN =1.4E-45
        *FloatMAX =3.4028235E38
        FloatMIN (the int bits) =1
        FloatMAX (the int bits) =2139095039
        java.lang.IllegalArgumentException: too many dimensions
            at java.lang.reflect.Array.multiNewArray(Native Method)
            at java.lang.reflect.Array.newInstance(Unknown Source)
            at Test.testDeepArrayConstruction(Unknown Source)
            at Test.main(Unknown Source)
            at sun.misc.CVM.runMain(Unknown Source)
        Constructed an object of type
        [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[[LTest;
        finally!
        Requesting GC with a latency request of 2 seconds
        (Turning GC tracing on)
        Sleeping 5 seconds, and waiting for GC's
        Woke up! Cancelling latency request
        .............
        *CONGRATULATIONS: test Test completed with 411 tests passed and 0 failures
        *Output lines starting with a * should be checked for correctness
        *They can be compared to src/share/javavm/test/TestExpectedResult
        *CONGRATULATIONS: test Test completed with 411 tests passed and 0 failures
        這句話意味著什么，我就不說了～～ 恭喜你！

               
               
               
               

本文來自ChinaUnix博客，如果查看原文請點(diǎn)：http://blog.chinaunix.net/u1/49274/showart_2058477.html

sukenwoo

回復(fù) 1# 風(fēng)城少主


    你好。我按你的做法編譯出來后運(yùn)行cvm出現(xiàn)illegal instruction。這是什么問題？該如何解決？謝謝了