Cross compile libpcap for Android/arm

Compile libpcap 1.5.2
export ANDROID_NDK=/home/ducalpha/android/ndk # or your Android NDK root directory
export CC=${ANDROID_NDK}/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc
export CCOPT="-O2 -fpic --sysroot=/home/ducalpha/adr/ndk/platforms/android-14/arch-arm -DANDROID -DOS_ANDROID"
export CFLAGS="--sysroot=${ANDROID_NDK}/platforms/android-14/arch-arm -DANDROID -DOS_ANDROID"
export LDFLAGS="--sysroot=${ANDROID_NDK}/platforms/android-14/arch-arm -fPIC -mandroid -L${ANDROID_NDK}/platforms/android-14/arch-arm/usr/lib"
./configure --host=arm-linux --with-pcap=linux --prefix=${ANDROID_NDK}/platforms/android-14/arch-arm/usr
make
make install

Compile libpcap 1.4.0
Reason for my failure: libpcap 1.4.0 has a "wrong" configure script and creates "wrong" config.h so we need to fix them
1. configure script: remove all #define in configure
     why? this will make android ndk gcc fail to compile because of multiple definition of int8, int16, int32, u_int8, u_int16, u_int32
2. Create correct config.h 
Manually fix #define in config.h :(

After the above step, we must:
1. export CFLAGS and LDLAGS for Android
2. use prefix for installation
  --prefix=/home/ducalpha/adr/ndk/platforms/android-14/arch-arm/usr/lib
     /usr/lib: library *.so files
     /usr/include: include files

All commands needed for compilation:
Change directory to the root directory of libpcap
export ANDROID_NDK=/home/ducalpha/android/ndk
export CC=${ANDROID_NDK}/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc
export CCOPT="-O2 -fpic --sysroot=/home/ducalpha/adr/ndk/platforms/android-14/arch-arm -DANDROID -DOS_ANDROID"
export CFLAGS="--sysroot=${ANDROID_NDK}/platforms/android-14/arch-arm -DANDROID -DOS_ANDROID"
export LDFLAGS="--sysroot=${ANDROID_NDK}/platforms/android-14/arch-arm -fPIC -mandroid -L${ANDROID_NDK}/platforms/android-14/arch-arm/usr/lib"
./configure --host=arm-linux --with-pcap=linux --prefix=${ANDROID_NDK}/platforms/android-14/arch-arm/usr
make
make install

Comments

  1. LeiMengLongSeptember 28, 2014 at 3:23:00 AM EDT

    excellent job!! thank you!!

    ReplyDelete
  2. AnonymousJune 5, 2016 at 6:31:00 PM EDT

    Thanks, this worked. But I used the latest libpcap from their github page. Their normal ...1.7.4.tar.gz release will cause a "cannot find ifbond" error with the ndk.

    ReplyDelete
    Replies
    1. ducbhJune 9, 2016 at 10:38:00 AM EDT

      You need to check the source code or Makefile to see what caused the error. Another way is to use an older version of libpcap.

      Delete

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