#ANDROID NDK FOR BOTH ARM AND INTEL CODE#

#ANDROID NDK FOR BOTH ARM AND INTEL CODE#

Searching my code base, the arm_acle.h header file is only present for the clang host tools, whereas arm_neon.h is is present for several prebuilts tool arm directories.Īs I said, the arm_neon works detection works fine, and runs fine, it's the arm_acle component that doesn't work. The only solution I know is to define global APPCFLAGS in the Application.mk. If I undo my additional debugging defines, I simply get ' error: #error 'ACLE intrinsics support not enabled.' (Neon support and detection succeeds) I then further define '-mfloat-abi=softfp -mfpu=neon -march=armv7', but to no avail. My target arch is armv7-a-neon and is correctly detected in the make file at build time. Or am I overlooking something fundamental here? The header doesn't seen to include any dependencies, and the documentation list no specific link dependencies. When I inlcude the arm_acle.h and atttempt to use the _ssat() call, I have to further define a directive _ARM_FEATURE_CRC32, and when building I get the error' error: '_builtin_arm_qadd' was not declared in this scope' Google has offered almost zero assistance :) Also searching the arm community boards has yielded little by way of results.ĭo people not use the acle, and chose inline assembly instead? The arm document itself merely suggests including the arm_acle.h header file, however I still get errors. I've gotten that to work with no problem.Īrm also offer the ACLE (Arm C Language Extension), but I can find next to nothing by way of examples. There are lots of examples of using arm neon intrinsics for android, with the ndk even having an example. Currently, Intel® CPUs are in smartphones and tablets while Android, Windows 8, and some other operating systems support both ARM and x86, increasing the developers options enormously.

Android ndk for both arm and intel