Building from Source

[SeannyM]

(03-16-2015, 01:41 PM)linedot Wrote: Hi.

I've been trying to build the android version unsuccessfully. I've been using this command line
cmake -DANDROID=True -DCMAKE_TOOLCHAIN_FILE=../Source/Android/android.toolchain.cmake -DANDROID_TOOLCHAIN_NAME=arm-linux-androideabi-4.9 -DCMAKE_BUILD_TYPE=Release -DANDROID_ABI="armeabi-v7a" -DANDROID_NATIVE_API_LEVEL=21 ..

The compilation will fail with:

/Source/Core/Core/MachineContext.h:91:23: fatal error: ucontext.h: No such file or directory

Adding "-isystem /path/to/ndk/platforms/android-L/arch-arm/usr/include" to CMAKE_CXX_FLAGS manually will remove this error, but the build will still fail somewhere else, so I guess I didn't set something up right and am trying to fix the symptons instead of the cause. Maybe someone can help?

The reason I want to compile from source is I've had some trouble getting the emulator to run on my phone. mmap generates an ENOMEM ("Failed to map 1 GB of memory space"), that's in Source/Core/Common/MemArena.cpp:154 . Then there is a SIGSEGV later on in TranslateAddress(). I wanted to play with the code and try to figure out why that happens (There is enough RAM)

Going off of the first error, I would say you need a newer version of the NDK.