Category Archives: IT

Enable NDK debug on Eclipse , Ubuntu

IT, , ,

Summary

  • Push compiled binary to phone via adb push
    push gdb server to phone
    on phone: run gdb server with given TCP port

    on unbuntu: set TCP port forwarding
    on eclipse: set debug configuration to use TCP connection.

    • Details:

  • Push compiled binary to phone via adb push
    push gdb server to phone
    adb shell push $ANDROID_NDK_ROOT/prebuilt/android-arm/gdbserver/gdbserver /data
    Push compiled binary to phone via adb push

    adb push /home/victor/workspace/xxx/obj/local/armeabi/testPcap /data/app
    on phone: run gdb server with given TCP port
    adb shell
    On phone: /data/gdbserver :5039 /data/app/testPcap

    on unbuntu: set TCP port forwarding 在本地把本地TCP端口forward到设备的TCP端口

    adb forward tcp:5039 tcp:5039

    on eclipse: set debug configuration to use TCP connection.


    • Eclipse 设置调试
    程序为 /home/victor/workspace/xxx/obj/local/armeabi/testPcap
    DEBUGER： gdbserver

    gdb debuger： /home/victor/dev/android-ndk-r9d/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gdb
    gdb commandline: /home/victor/workspace/xxxx/libs/armeabi/droidsheep
    Connection localhost 5039

    Canon 4770N install on Ubuntu

    IT

    sudo apt-get install cups-client cups-common cups-core-drivers cups-daemon cups-filters cups-ppdc cups-server-common debconf ghostscript libavahi-client3 libavahi-common3 libc-bin libc6 libcups2 libcupscgi1 libcupsimage2 libcupsmime1 libcupsppdc1 libgcc1 libstdc++6 libusb-1.0-0 lsb-base poppler-utils procps system-config-printer-gnome libxml2:i386

    /etc/cups/cupsd.conf   set require user to be none, so everyone can access it

     

     

    Description: Canon MF4700 Series
    Location: ubuntu
    Driver: Canon MF4700 Series UFRII LT ver.2.6 (grayscale, 2-sided printing)
    Connection: usb://Canon/MF4700%20Series?serial=2127K2420E48&interface=1
    Defaults: job-sheets=none, none media=na_letter_8.5x11in sides=one-sided 
    /etc/init.d/cups restart

    PCAP Sample

    IT

    pcap_findalldevs

     

    1. #include <stdio.h>
    2. #include <stdlib.h>
    3. #include <string.h>
    4. #include <unistd.h>
    5. #include <pcap/pcap.h>
    6. #include <arpa/inet.h>
    8. main()
    9. {
    10.   char errbuf[PCAP_ERRBUF_SIZE];//存放错误信息的缓冲
    11.   pcap_if_t *it;
    12.   int r;
    14.   r=pcap_findalldevs(&it,errbuf);
    15.   if(r==–1)
    16.   {
    17.     printf(“err:%s\n”,errbuf);
    18.     exit(–1);
    19.   }
    21.   while(it)
    22.   {
    23.     printf(“:%s\n”,it–>name);
    25.     it=it–>next;
    27.   }
    28. }

     

    SDK API version table

    IT

    File Project.properies control target platform , SDK and NDK both use this

    target=android-10

    level 10 API is best to use as it support mutiple platform’s CPU. and it’s the lowest API that cover 99% of market

    Native Code CPU Architecture Used Compatible Android Platform(s)
    ARM, ARM-NEON Android 1.5 (API Level 3) and higher
    x86 Android 2.3 (API Level 9) and higher
    MIPS Android 2.3 (API Level 9) and higher
    Platform Version API Level VERSION_CODE Notes
    Android 4.4 19 KITKAT Platform Highlights
    Android 4.3 18 JELLY_BEAN_MR2 Platform Highlights
    Android 4.2, 4.2.2 17 JELLY_BEAN_MR1 Platform Highlights
    Android 4.1, 4.1.1 16 JELLY_BEAN Platform Highlights
    Android 4.0.3, 4.0.4 15 ICE_CREAM_SANDWICH_MR1 Platform Highlights
    Android 4.0, 4.0.1, 4.0.2 14 ICE_CREAM_SANDWICH
    Android 3.2 13 HONEYCOMB_MR2
    Android 3.1.x 12 HONEYCOMB_MR1 Platform Highlights
    Android 3.0.x 11 HONEYCOMB Platform Highlights
    Android 2.3.4
    Android 2.3.3    		 10 GINGERBREAD_MR1 Platform Highlights
    Android 2.3.2
    Android 2.3.1
    Android 2.3    		 9 GINGERBREAD
    Android 2.2.x 8 FROYO Platform Highlights
    Android 2.1.x 7 ECLAIR_MR1 Platform Highlights
    Android 2.0.1 6 ECLAIR_0_1
    Android 2.0 5 ECLAIR
    Android 1.6 4 DONUT Platform Highlights
    Android 1.5 3 CUPCAKE Platform Highlights
    Android 1.1 2 BASE_1_1
    Android 1.0 1 BASE

    Eclipse Unresolved inclusion with NDK9

    IT

    Following 4 steps should resolve the eclipse error on “can not find xxxx files” when develop NDK code.

    1, C/C++ Build –> Tool Chain Editor –> Change Current tool chian to Linux GCC,  keep Current builder to be Andriod Builder

    2. C/C++ General: Language Mapping , set C header File to be GNU C and C++ header File to be GNU C++

    3. Manually add include path under  C/C++ General —> Path and Symbols

    4.  Clean –> rebuilt project,   or remove project, and re-import from existing code.

    debug

    IT

    Log:

    import      android.util.Log;

    Log.i(“MyActivity”, “Call back been called”);

     

    NDK :log

    LOCAL_LDLIBS += -L$(SYSROOT)/usr/lib -llog

    #include <android/log.h>

    __android_log_print(ANDROID_LOG_INFO, “JNIMsg”, “Get Param: %s From Java”, c_msg);

    NDK: Debut mode   ndk-build  “NDK_DEBUG = 1”

    http://tools.android.com/recent/usingthendkplugin

    NDK8 “ndk-build clean” error fix: https://code.google.com/p/android/issues/detail?id=59228

    A NDK GDB guide

    rebuilt ubuntu NDK environment

    IT

    sudo echo ‘SUBSYSTEM==”usb”, ATTR{idVendor}==”0bb4″, MODE=”0666″, GROUP=”victor”‘ > /etc/udev/rules.d/51-android.rules

    sudo chmod a+ /etc/udev/rules.d/51-android.rules

    sudo mkdir -p /usr/local/java
    sudo cp ~/Downloads/jdk1.8.0_05/ /usr/local/java/ -fr
    mv ~/Downloads/android-ndk-r9d/ ~/dev/ -fr
    mv ~/Downloads/adt-bundle-linux-x86_64-20140321/ ~/dev/ -fr

    sudo update-alternatives –install “/usr/bin/javaws” “javaws” “/usr/local/java/jdk1.8.0_05/bin/javaws” 1
    sudo update-alternatives –set java /usr/local/java/jdk1.8.0_05/bin/java
    sudo update-alternatives –set javac /usr/local/java/jdk1.8.0_05/bin/javac
    sudo update-alternatives –set javaws /usr/local/java/jdk1.8.0_05/bin/javaws
    sudo apt-get install ia32-libs
    sudo apt-get install lib32z1  lib32ncurses5 lib32bz2-1.0

    sudo apt-get install build-essential
    sudo apt-get install lib32z1 lib32z1-dev
    sudo apt-get install git byacc libglib2.0-dev parcellite samba subversion

    sudo apt-get install git
    sudo apt-get install byacc

    sudo apt-get install parcellite
    sudo apt-get install samba subversion
    sudo  ln -s /home/victor/dev/adt-bundle-linux-x86_64-20140321/eclipse/eclipse