Compiling openssl for use with Qt 5.12 on Android



  • Trying to compile openssl for use with Android and Qt 5.12.

    Qt 5.12 requires the latest android ndk. However, this ndk does not support *-gcc

    $ ../Setenv-android.sh
    Error: Failed to find arm-linux-androideabi-gcc. Please edit this script.
    Error: FIPS_SIG does not specify incore module. Please edit this script.
    ANDROID_NDK_ROOT: c:/Users/xxxxx/AppData/Local/Android/Sdk/ndk-bundle
    ANDROID_ARCH: arch-arm
    ANDROID_EABI: arm-linux-androideabi-4.9
    ANDROID_API: android-18
    ANDROID_SYSROOT: c:/Users/xxxxx/AppData/Local/Android/Sdk/ndk-bundle/platforms/android-18/arch-arm
    ANDROID_TOOLCHAIN: c:/Users/xxxxx/AppData/Local/Android/Sdk/ndk-bundle/toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64/bin
    FIPS_SIG:
    CROSS_COMPILE: arm-linux-androideabi-
    ANDROID_DEV: c:/Users/xxxxx/AppData/Local/Android/Sdk/ndk-bundle/platforms/android-18/arch-arm/usr
    

    Anyone an idea how to move forward?


  • Lifetime Qt Champion

    Hi,

    What instructions are you following ?

    The NDK switched to clang. One quick and dirty way could be to create two symbolic links for gcc and g++ to the corresponding clang and clang++ binaries.



  • @SGaist said in Compiling openssl for use with Qt 5.12 on Android:

    What instructions are you following ?

    https://doc.qt.io/qt-5/android-openssl-support.html

    The NDK switched to clang. One quick and dirty way could be to create two symbolic links for gcc and g++ to the corresponding clang and clang++ binaries.

    Not completely clear right away to me.


  • Lifetime Qt Champion

    Ok, then these instructions are for the older NDK r10.

    I meant go to the folder where clang is located and then ln -s clang gcc and ln -s clang++ g++



  • Hi ,
    This is what I did last year to compile openssl for android using windows system

    SOFTWARES REQUIRED*****

    MinGW
    MSYS2
    PERL(5.10 or above)
    ANDROID NDK
    OPENSSL SOURCE CODE

    PROCESS FOLLOWED****

    STEP 1: Install MSYS2
    STEP 2: DOWNLOAD and install ALL THE IMPORTANT MODULES of MSYS2 using following commands
    step 2.1: pacman -Syu
    step 2.2: pacman -Su
    step 2.3: pacman -S git
    STEP 3: DOWNLOAD OPENSSL-1.1.1 and Setenv-android.sh script(from openssl official website)
    STEP 4: MODIFY Setenv-android.sh script according to your need.

    EDIT the script to get something like this
    $ bash setenv-android.sh
    ANDROID_NDK_ROOT: C:/Android/android-ndk-r15c
    ANDROID_ARCH: arch-arm
    ANDROID_EABI: arm-linux-androideabi-4.9
    ANDROID_API: android-24
    ANDROID_SYSROOT: C:/Android/android-ndk-r15c/platforms/android-24/arch-arm
    ANDROID_TOOLCHAIN: C:/Android/android-ndk-r15c/toolchains/arm-linux-androideabi-4.9/prebuilt/windows-x86_64/bin
    FIPS_SIG:
    CROSS_COMPILE: arm-linux-androideabi-
    ANDROID_DEV: C:/Android/android-ndk-r15c/platforms/android-24/arch-arm/usr

    STEP 5: CREATE A ROOT FOLDER AND PASTE THIS SCRIPT AND OPENSSL-1.1.1 folder in that folder
    STEP 6: OPEN MSYS2 and navigate to root folder
    STEP 7: RUN FOLLOWING COMMANDS
    chmod a+x Setenv-android.sh
    . ./Setenv-android.sh
    STEP 8: NOW navigate to openssl1.1.1 folder which is present inside root folder
    cd openssl-1.1.1
    STEP 9: NOW run these commands
    1)./config shared
    2)perl configdata.pm --dump
    3)make depend
    4)make all
    NOTE: IF make gives error just run "$ pacman -S make" command..
    STEP 10: THIS process should give library files in openssl folder ..........

    Try this once😊

    Make sure that whatever paths you set in this script shall be correct else you may get error!!!

    Note : used ndk-r15c



  • sample of script:

    #!/bin/bash
    # Cross-compile environment for Android on ARMv7 and x86
    #
    # Contents licensed under the terms of the OpenSSL license
    # http://www.openssl.org/source/license.html
    #
    # See http://wiki.openssl.org/index.php/FIPS_Library_and_Android
    #   and http://wiki.openssl.org/index.php/Android
    
    #####################################################################
    export ANDROID_NDK_ROOT="/c/ASHISH/android-ndk-r15c"
    # Set ANDROID_NDK_ROOT to you NDK location. For example,
    # /opt/android-ndk-r8e or /opt/android-ndk-r9. This can be done in a
    # login script. If ANDROID_NDK_ROOT is not specified, the script will
    # try to pick it up with the value of _ANDROID_NDK_ROOT below. If
    # ANDROID_NDK_ROOT is set, then the value is ignored.
    # _ANDROID_NDK="android-ndk-r8e"
    #_ANDROID_NDK="android-ndk-r9"
    # _ANDROID_NDK="android-ndk-r10"
    
    # Set _ANDROID_EABI to the EABI you want to use. You can find the
    # list in $ANDROID_NDK_ROOT/toolchains. This value is always used.
    # _ANDROID_EABI="x86-4.6"
    # _ANDROID_EABI="arm-linux-androideabi-4.6"
    _ANDROID_EABI="arm-linux-androideabi-4.9"
    
    # Set _ANDROID_ARCH to the architecture you are building for.
    # This value is always used.
    # _ANDROID_ARCH=arch-x86
    _ANDROID_ARCH=arch-arm
    
    # Set _ANDROID_API to the API you want to use. You should set it
    # to one of: android-14, android-9, android-8, android-14, android-5
    # android-4, or android-3. You can't set it to the latest (for
    # example, API-17) because the NDK does not supply the platform. At
    # Android 5.0, there will likely be another platform added (android-22?).
    # This value is always used.
    # _ANDROID_API="android-14"
    _ANDROID_API="android-24"
    # _ANDROID_API="android-19"
    
    #####################################################################
    
    # If the user did not specify the NDK location, try and pick it up.
    # We expect something like ANDROID_NDK_ROOT=/opt/android-ndk-r8e
    # or ANDROID_NDK_ROOT=/usr/local/android-ndk-r8e.
    
    if [ -z "$ANDROID_NDK_ROOT" ]; then
    
      _ANDROID_NDK_ROOT=""
      if [ -z "$_ANDROID_NDK_ROOT" ] && [ -d "/usr/local/$_ANDROID_NDK" ]; then
        _ANDROID_NDK_ROOT="/usr/local/$_ANDROID_NDK"
      fi
    
      if [ -z "$_ANDROID_NDK_ROOT" ] && [ -d "/opt/$_ANDROID_NDK" ]; then
        _ANDROID_NDK_ROOT="/opt/$_ANDROID_NDK"
      fi
    
      if [ -z "$_ANDROID_NDK_ROOT" ] && [ -d "$HOME/$_ANDROID_NDK" ]; then
        _ANDROID_NDK_ROOT="$HOME/$_ANDROID_NDK"
      fi
    
      if [ -z "$_ANDROID_NDK_ROOT" ] && [ -d "$PWD/$_ANDROID_NDK" ]; then
        _ANDROID_NDK_ROOT="$PWD/$_ANDROID_NDK"
      fi
    
      # If a path was set, then export it
      if [ ! -z "$_ANDROID_NDK_ROOT" ] && [ -d "$_ANDROID_NDK_ROOT" ]; then
        export ANDROID_NDK_ROOT="$_ANDROID_NDK_ROOT"
      fi
    fi
    
    # Error checking
    # ANDROID_NDK_ROOT should always be set by the user (even when not running this script)
    # http://groups.google.com/group/android-ndk/browse_thread/thread/a998e139aca71d77
    if [ -z "$ANDROID_NDK_ROOT" ] || [ ! -d "$ANDROID_NDK_ROOT" ]; then
      echo "Error: ANDROID_NDK_ROOT is not a valid path. Please edit this script."
      # echo "$ANDROID_NDK_ROOT"
      # exit 1
    fi
    
    # Error checking
    if [ ! -d "$ANDROID_NDK_ROOT/toolchains" ]; then
      echo "Error: ANDROID_NDK_ROOT/toolchains is not a valid path. Please edit this script."
      # echo "$ANDROID_NDK_ROOT/toolchains"
      # exit 1
    fi
    
    # Error checking
    if [ ! -d "$ANDROID_NDK_ROOT/toolchains/$_ANDROID_EABI" ]; then
      echo "Error: ANDROID_EABI is not a valid path. Please edit this script."
      # echo "$ANDROID_NDK_ROOT/toolchains/$_ANDROID_EABI"
      # exit 1
    fi
    
    #####################################################################
    
    # Based on ANDROID_NDK_ROOT, try and pick up the required toolchain. We expect something like:
    # /opt/android-ndk-r83/toolchains/arm-linux-androideabi-4.7/prebuilt/linux-x86_64/bin
    # Once we locate the toolchain, we add it to the PATH. Note: this is the 'hard way' of
    # doing things according to the NDK documentation for Ice Cream Sandwich.
    # https://android.googlesource.com/platform/ndk/+/ics-mr0/docs/STANDALONE-TOOLCHAIN.html
    
    ANDROID_TOOLCHAIN=""
    for host in "linux-x86_64" "linux-x86" "darwin-x86_64" "darwin-x86" "windows-x86_64"
    do
      if [ -d "$ANDROID_NDK_ROOT/toolchains/$_ANDROID_EABI/prebuilt/$host/bin" ]; then
        ANDROID_TOOLCHAIN="$ANDROID_NDK_ROOT/toolchains/$_ANDROID_EABI/prebuilt/$host/bin"
        break
      fi
    done
    
    # Error checking
    if [ -z "$ANDROID_TOOLCHAIN" ] || [ ! -d "$ANDROID_TOOLCHAIN" ]; then
      echo "Error: ANDROID_TOOLCHAIN is not valid. Please edit this script."
      # echo "$ANDROID_TOOLCHAIN"
      # exit 1
    fi
    
    case $_ANDROID_ARCH in
    	arch-arm)	  
          ANDROID_TOOLS="arm-linux-androideabi-gcc arm-linux-androideabi-ranlib arm-linux-androideabi-ld"
    	  ;;
    	arch-x86)	  
          ANDROID_TOOLS="i686-linux-android-gcc i686-linux-android-ranlib i686-linux-android-ld"
    	  ;;	  
    	*)
    	  echo "ERROR ERROR ERROR"
    	  ;;
    esac
    
    for tool in $ANDROID_TOOLS
    do
      # Error checking
      if [ ! -e "$ANDROID_TOOLCHAIN/$tool" ]; then
        echo "Error: Failed to find $tool. Please edit this script."
        # echo "$ANDROID_TOOLCHAIN/$tool"
        # exit 1
      fi
    done
    
    # Only modify/export PATH if ANDROID_TOOLCHAIN good
    if [ ! -z "$ANDROID_TOOLCHAIN" ]; then
      export ANDROID_TOOLCHAIN="$ANDROID_TOOLCHAIN"
      export PATH="$ANDROID_TOOLCHAIN":"$PATH"
    fi
    
    #####################################################################
    
    # For the Android SYSROOT. Can be used on the command line with --sysroot
    # https://android.googlesource.com/platform/ndk/+/ics-mr0/docs/STANDALONE-TOOLCHAIN.html
    export ANDROID_SYSROOT="$ANDROID_NDK_ROOT/platforms/$_ANDROID_API/$_ANDROID_ARCH"
    export CROSS_SYSROOT="$ANDROID_SYSROOT"
    export NDK_SYSROOT="$ANDROID_SYSROOT"
    
    # Error checking
    if [ -z "$ANDROID_SYSROOT" ] || [ ! -d "$ANDROID_SYSROOT" ]; then
      echo "Error: ANDROID_SYSROOT is not valid. Please edit this script."
      # echo "$ANDROID_SYSROOT"
      # exit 1
    fi
    
    #####################################################################
    
    # If the user did not specify the FIPS_SIG location, try and pick it up
    # If the user specified a bad location, then try and pick it up too.
    #if [ -z "$FIPS_SIG" ] || [ ! -e "$FIPS_SIG" ]; then
    #
    #  # Try and locate it
    #  _FIPS_SIG=""
    #  if [ -d "/usr/local/ssl/$_ANDROID_API" ]; then
    #    _FIPS_SIG=`find "/usr/local/ssl/$_ANDROID_API" -name incore`
    #  fi
    #
    #  if [ ! -e "$_FIPS_SIG" ]; then
    #    _FIPS_SIG=`find $PWD -name incore`
    #  fi
    #
    #  # If a path was set, then export it
    #  if [ ! -z "$_FIPS_SIG" ] && [ -e "$_FIPS_SIG" ]; then
    #    export FIPS_SIG="$_FIPS_SIG"
    #  fi
    #fi
    
    ## Error checking. Its OK to ignore this if you are *not* building for FIPS
    #if [ -z "$FIPS_SIG" ] || [ ! -e "$FIPS_SIG" ]; then
    #  echo "Error: FIPS_SIG does not specify incore module. Please edit this script."
    #  # echo "$FIPS_SIG"
    #  # exit 1
    #fi
    
    #####################################################################
    
    # Most of these should be OK (MACHINE, SYSTEM, ARCH). RELEASE is ignored.
    export MACHINE=armv7
    export RELEASE=2.6.37
    export SYSTEM=android
    export ARCH=arm
    export CROSS_COMPILE="arm-linux-androideabi-"
    
    if [ "$_ANDROID_ARCH" == "arch-x86" ]; then
    	export MACHINE=i686
    	export RELEASE=2.6.37
    	export SYSTEM=android
    	export ARCH=x86
    	export CROSS_COMPILE="i686-linux-android-"
    fi
    
    # For the Android toolchain
    # https://android.googlesource.com/platform/ndk/+/ics-mr0/docs/STANDALONE-TOOLCHAIN.html
    export ANDROID_SYSROOT="$ANDROID_NDK_ROOT/platforms/$_ANDROID_API/$_ANDROID_ARCH"
    export SYSROOT="$ANDROID_SYSROOT"
    export NDK_SYSROOT="$ANDROID_SYSROOT"
    export ANDROID_NDK_SYSROOT="$ANDROID_SYSROOT"
    export ANDROID_API="$_ANDROID_API"
    
    # CROSS_COMPILE and ANDROID_DEV are DFW (Don't Fiddle With). Its used by OpenSSL build system.
    # export CROSS_COMPILE="arm-linux-androideabi-"
    export ANDROID_DEV="$ANDROID_NDK_ROOT/platforms/$_ANDROID_API/$_ANDROID_ARCH/usr"
    export HOSTCC=gcc
    
    VERBOSE=1
    if [ ! -z "$VERBOSE" ] && [ "$VERBOSE" != "0" ]; then
      echo "ANDROID_NDK_ROOT: $ANDROID_NDK_ROOT"
      echo "ANDROID_ARCH: $_ANDROID_ARCH"
      echo "ANDROID_EABI: $_ANDROID_EABI"
      echo "ANDROID_API: $ANDROID_API"
      echo "ANDROID_SYSROOT: $ANDROID_SYSROOT"
      echo "ANDROID_TOOLCHAIN: $ANDROID_TOOLCHAIN"
      echo "FIPS_SIG: $FIPS_SIG"
      echo "CROSS_COMPILE: $CROSS_COMPILE"
      echo "ANDROID_DEV: $ANDROID_DEV"
    fi
    

 

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