为Android ARMV7编译OpenSSL 1.1.0

Question

I am trying to compile OpenSSL 1.1.0(k) for Android ARMV7 on an Ubuntu machine. But I can only compile for targets android, android-armabi, android64(-aarch64).

What I was trying (in openssl-1.1.0k Folder):

export AR=~/android-ndk-r11c/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc-ar
export CC=~/android-ndk-r11c/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc
export LD=~/android-ndk-r11c/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-ld
export RANLIB=~/android-ndk-r11c/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin/arm-linux-androideabi-gcc-ranlib
export ANDROIDNDKVER=r11c
export ANDROIDAPI=24
export CROSS_SYSROOT=~/android-ndk-r11c/platforms/android-24/arch-arm64
export ANDROID_DEV=~/android-ndk-r11c/platforms/android-24/arch-arm64/usr/
export SYSROOT=~/android-ndk-r11c/platforms/android-24/arch-arm64/usr/
export PATH=$PATH:~/android-ndk-r11c/platforms/android-24/arch-arm64/usr/

Now when I list targets with

./Configure LIST

Armv7 is not mentioned. I expected a target named android-armv7 like it is when I enter the same commands in a openssl-1.0.2l Directory.

What am I missing ? Or how can I compile Openssl-1.1.0 in a compatible Version for armv7 Android mobiles ?

Also using NDK r18b or android-28 did not do the trick or even to use arch-arm instead of arch-arm64.

Background: OpenSSL 1.1.0 is required by the Framework I am using (Qt 5.13) now and it works on some mobiles. Like the HTC 10 (armv8 64-bit) but on LG K7 (armv7 32-bit) and an Amazon Fire Tablet it is not working.

Thanks,

Answer 1

I didn't try with OpenSSL 1.1.0 but I did the same thing with 1.1.1c for Qt 5.12.4 . I used a guide I found to compile it for android, both 32 and 64 bit.

Also the 32bit is basically android-armeabi so use that for architecture type. Also you can find some more info and already compiled libs here .

I tested both 32 and 64bit libs that I compiled using the linked guide and I can say they are working.

Also make sure to use newer NDK , based on the code you are using r11c that's a bit too old. For Qt 5.13.0 you would need at least 19c , so use the same to compile.