| commit | 5e7a09cc92dd53338e4049a6e5b24b32f092d137 | [log] [tgz] |
|---|---|---|
| author | Dan Albert <[email protected]> | Mon Apr 30 14:16:54 2018 -0700 |
| committer | Dan Albert <[email protected]> | Mon Apr 30 14:16:54 2018 -0700 |
| tree | 2c8d47382f464bf9c0d65889a7cc6cf5700dca30 | |
| parent | 51076ce76c1e990517df1e65f7bcddb58996950b [diff] |
Move a test's API level to android-17. _mm_malloc calls posix_memalign, which isn't available until android-17. Test: ./checkbuild.py && ./run_tests.py Bug: None Change-Id: I80a99e126395ff611cd9a5ec32016de340ef0220
The latest version of this document is available at https://android.googlesource.com/platform/ndk/+/master/README.md.
Note: This document is for developers of the NDK, not developers that use the NDK.
The NDK allows Android application developers to include native code in their Android application packages, compiled as JNI shared libraries.
Both Linux and Windows NDKs are built on Linux machines. Windows host binaries are cross-compiled with MinGW.
Building the NDK for Mac OS X requires at least 10.8.
The NDK components can be loosely grouped into host toolchains, target prebuilts, build systems, and support libraries.
toolchains/ contains GCC and Clang toolchains.$TOOLCHAIN/config.mk contains ARCH and ABIS this toolchain can handle.$TOOLCHAIN/setup.mk contains toolchain-specific default CFLAGS/LDFLAGS when this toolchain is used.prebuilt/$HOST_TAG contains build dependencies and additional tools.ndk-depends, ndk-stack and ndk-gdb can also be found here.sysroot/usr/include contains the headers for the NDK. See Unified Headers for more information.platforms/android-$VERSION/arch-$ARCH_NAME/ contains stub shared libraries and a few static libraries for each API level. See Platform APIs for more information.sources/cxx-stl/$STL contains the headers and libraries for the various C++ STLs.prebuilt/android-$ARCH/gdbserver contains gdbserver.build/ contains ndk-build, the NDK's home grown build system. Most of the implementation lives in build/core.build/cmake contains components for using the NDK with CMake (at present only a CMake toolchain file, but in the future it will contain CMake modules that CMake will load, obviating the need for a toolchain file).build/tools contains make_standalone_toolchain.py, but also contains legacy sripts that were used to build the NDK. Eventually, this should contain nothing but the standalone toolchain scripts.sources/android and sources/third_party contain modules that can be used in apps (gtest, cpufeatures, native_app_glue, etc) via $(call import-module,$MODULE).Check out the branch master-ndk
repo init -u https://android.googlesource.com/platform/manifest \ -b master-ndk # Googlers, use repo init -u \ persistent-https://android.git.corp.google.com/platform/manifest \ -b master-ndk
Linux dependencies are listed in the Dockerfile. You can use docker to build the NDK:
docker build -t ndk-dev infra/docker docker run -it -u $UID -v `realpath ..`:/src -w /src/ndk ndk-dev ./checkbuild.py
Building on Mac OS X has similar dependencies as Linux, but also requires Xcode.
Running tests requires that adb is in your PATH. This is provided as part of the Android SDK.
$ python checkbuild.py
$ python checkbuild.py --system windows # Or windows64.
checkbuild.py will also build all of the NDK tests. This takes about four times as long as building the NDK itself, so pass --no-build-tests to skip building the tests. They can be built later with python run_tests.py --rebuild.
checkbuild.py also accepts a variety of other options to speed up local builds, namely --arch and --module.
By default, checkbuild.py will also package the NDK. To skip the packaging step, use the --no-package flag. To avoid packaging an incomplete NDK, packaging will not be run if --module was passed unless --force-package was also provided.