Android NDK ChangeLog: ------------------------------------------------------------------------------- android-ndk-r8 IMPORTANT BUG FIXES: - Fixed a typo in GAbi++ implementaiton where result of dynamic_cast<D>(b) of base class object 'b' to derived class D is adjusted wrong (in the opposite direction from base class). See http://code.google.com/p/android/issues/detail?id=28721 - Fixed an issue in make-standalone-toolchain.sh which fails to copy libsupc++.*. IMPORTANT CHANGES: - Added support for the mips ABI. This release of the Android NDK contains support for 'mips' ABI. To generate machine runs on MIPS-based Android devices, please add 'mips' to APP_ABI definition in your Application.mk, or 'all' to generate binaries for all currently supported ABI. See docs/CPU-MIPS.html for details. - You can build a standalone mips toolchain using the --toolchain=mipsel-linux-android-4.4.3 option when calling make-standalone-toolchain.sh. See docs/STANDALONE-TOOLCHAIN.html for more details. OTHER BUG FIXE: - Fixed ndk-build.cmd to ensure that ndk-build.cmd works correctly even if the user has redefined the SHELL environment variable (which can happen under the hood when installing a variety of development tools on Windows) ------------------------------------------------------------------------------- android-ndk-r7c This release of the NDK includes an important fix for Tegra2-based devices, and a few additional fixes and improvements: IMPORTANT BUG FIXES: - Fixed GNU STL armeabi-v7a binaries to not crash on non-NEON devices. The files provided with NDK r7b where not configured properly, resulting in crashes on Tegra2-based devices and others when trying to use certain floating-point functions (e.g., cosf, sinf, expf). IMPORTANT CHANGES: - Added support for custom output directories through the NDK_OUT environment variable. When defined, this variable is used to store all intermediate generated files, instead of $PROJECT_PATH/obj. The variable is also recognized by ndk-gdb. - Added support for building modules with hundreds or even thousand of source files by defining LOCAL_SHORT_COMMANDS to true in your Android.mk. This change forces the NDK build system to put most linker or archiver options into list files, to work-around command-line length limitations (particularly on Windows). See docs/ANDROID-MK.html for details. OTHER BUG FIXES: - Fixed android_getCpuCount() implementation in the cpufeatures helper library. The previous implementation only listed the cores that were active the first time the function was called. This behavior could provide results that were too low on devices that disable and enable cores dynamically. ------------------------------------------------------------------------------- android-ndk-r7b IMPORTANT BUG FIXES: - Updated <sys/atomics.h> to avoid correctness issues on some multi-core ARM-based devices. Rebuild your unmodified sources with this version of the NDK and this problem should completely be eliminated. For more details, read docs/ANDROID-ATOMICS.html. - Reverted to binutils 2.19 to try to fix debugging issues that appeared in NDK r7 (which switched to binutils 2.20.1). - Fixed ndk-build on 32-bit Linux. A packaging error put a 64-bit version of the 'awk' executable under prebuilt/linux-x86/bin in NDK r7. - Fixed native Windows build (ndk-build.cmd). Other build modes were not affected. The fixes include: * Removed an infinite loop / stack overflow bug that happened when trying to call ndk-build.cmd from a directory that was _not_ the top of your project path (e.g. any sub-directory of it). * Fixed a problem where the auto-generated dependency files were ignored. This meant that updating a header didn't trigger recompilation of sources that included it. * Fixed a problem where special characters in files or paths, other than spaces and quotes, were not correctly handled. - Fixed the standalone toolchain to generate proper binaries when using -lstdc++ (i.e. linking against the GNU libstdc++ C++ runtime). You should use -lgnustl_shared if you want to link against the shared library version or -lstdc++ for the static version. See docs/STANDALONE-TOOLCHAIN.html for more details about this fix. - Fixed gnustl_shared on Cygwin. The linker complained that it couldn't find libsupc++.a while the file was at the right location. - Fixed cygwin C++ link when not using any specific C++ runtime through APP_STL. OTHER CHANGES: - When your application uses the GNU libstdc++ runtime, the compiler will no longer forcibly enable exceptions and RTTI. This change results in smaller code. If you need these features, you need to do either one of these: 1/ Enable exceptions and/or RTTI explicitely in your modules or Application.mk. (recommended) 2/ Define APP_GNUSTL_FORCE_CPP_FEATURES to 'exceptions', 'rtti' or both in your Application.mk. See docs/APPLICATION-MK.html for more details. - ndk-gdb now works properly when your application has private services running in independent processes. It debugs the main application process, instead of the first process listed by 'ps', which is usually a service process. - Fixed a rare bug where NDK r7 would fail to honor the LOCAL_ARM_MODE value and always compile certain source files (but not all) to 32-bit instructions. - stlport: Refresh the sources to match the Android platform version. This update fixes a few minor bugs: - Fixed instantiation of an incomplete type. - Fixed minor == versus = typo - Use memmove instead of memcpy in string::assign - Added better handling of IsNANorINF, IsINF, IsNegNAN, etc.. For complete details, see the commit log. - stlport: Removed 5 un-necessary static initializers from the library. - The GNU libstdc++ libraries for armeabi-v7a were mistakenly compiled for armeabi instead. This had no impact on correctness, but using the right ABI should provide for slightly better performance. - the 'cpu-features' helper library was updated to report three optional x86 CPU features (SSSE3, MOVBE and POPCNT). See docs/CPU-FEATURES.html for more details. - docs/NDK-BUILD.html was updated to mention NDK_APPLICATION_MK instead of NDK_APP_APPLICATION_MK to select a custom Application.mk file. - cygwin: ndk-build no longer creates an empty "NUL" file in the current directory when invoked. - cygwin: better automatic dependency detection. It previously didn't work properly in the following case: - When the cygwin drive prefix was not /cygdrive - When using drive-less mounts, e.g. when Cygwin would translate /home to \\server\subdir instead of C:\Some\Dir. - cygwin: ndk-build does not try to use the native Windows tools under $NDK/prebuilt/windows/bin with certain versions of Cygwin and/or GNU Make. ------------------------------------------------------------------------------- android-ndk-r7 IMPORTANT CHANGES: - New official NDK APIs for Android 4.0 (a.k.a. API level 14), which adds the following native features to the platform: - Native multimedia API based on the Khronos Group OpenMAX AL 1.0.1 Standard. New headers <OMXAL/OpenMAXAL.h> and <OMXAL/OpenMAXAL_Android.h> are provided to allow applications targeting this API level to perform multimedia output directly from native code using a new Android-specific buffer queue interface. For more details, see docs/openmaxal/index.html and http://www.khronos.org/openmax/. - Updated the native audio API based on the Khronos Group OpenSL ES 1.0.1 Standard. API Level 14 can now decode compressed audio (e.g. MP3, AAC, Vorbis) to PCM. For more details, see docs/opensles/index.html and http://www.khronos.org/opensles/. - CCache support. To speed up large rebuilds, simply define the NDK_CCACHE environment variable to 'ccache' (or the path to your ccache binary), as in: export NDK_CCACHE=ccache The NDK build system will automatically use it when compiling any source file. For more information about CCache, see http://ccache.samba.org - You can now set your APP_ABI to 'all' to indicate that you want to build your NDK modules for all the ABIs supported by your given NDK release. This means that either one of these two lines in your Application.mk are equivalent with this release: APP_ABI := all APP_ABI := armeabi armeabi-v7a x86 This also works if you define APP_ABI on the command-line, as in: ndk-build APP_ABI=all Which is a quick way to check that your project builds for all supported ABIs without changing its Application.mk file. - Shorter paths to source and object files used in build commands. When invoking $NDK/ndk-build from your project path, the paths to the source, object and binary files passed to the build commands will be significantly shorter now because they are now passed relative to the current directory. This is useful when building projects with a lot of source files, to avoid limits on the maximum command line length supported by your host operating system. The behaviour is unchanged if you invoked ndk-build from a sub-directory of your project tree, or if you define NDK_PROJECT_PATH to point to a specific directory. - New LOCAL_CPP_FEATURES variable in Android.mk, used to declare which C++ features (RTTI or Exceptions) your module uses. This is especially handy if you have prebuilt modules that depend on them since this will ensure the final link will work correctly. See docs/ANDROID-MK.html and docs/CPLUSPLUS-SUPPORT.html for more details - WARNING: VERY EXPERIMENTAL!! You can now build your NDK sources on Windows *without* Cygwin. Simply call the script 'ndk-build.cmd' from the Windows cmd.exe command-line, when in your project path. The script takes exactly the same arguments than the original ndk-build one. Note that the Windows NDK package comes with its own prebuilt binaries for GNU Make, Awk and other tools required by the build, i.e. you shouldn't need to install anything else to get a working build system. IMPORTANT: ndk-gdb doesn't work. You still need Cygwin to debug at the moment! This feature is still very experimental, but feel free to try it and report issues on the public forum ([email protected]) or the public bug databse (http://b.android.com). Note that all samples and unit tests succesfully compile with it. IMPORTANT BUG FIXES: - Imported shared libraries are now installed by default to the target installation location (i.e. libs/%lt;abi%gt;) if APP_MODULES is not defined in your Application.mk. This means that if a top-level module "foo" imports a module "bar", then both libfoo.so and libbar.so will be copied to the install location. Previously, only libfoo.so was, unless you listed 'bar' in your APP_MODULES too. If you define APP_MODULES explicitely, the behaviour is unchanged. - Static library imports are now properly transitive. If top-level module 'foo' imports static library 'bar' which imports static library 'zoo', the libfoo.so will now be linked against both libbar.a and libzoo.a. - ndk-gdb now works correctly for activities with multiple categories in their MAIN intent filters. OTHER CHANGES: - docs/STABLE-APIS.html: Added missing documentation listing EGL as a supported stable API, starting from API level 9. - Add a new C++ support runtime named "gabi++". More details about it are available in the updated docs/CPLUSPLUS-SUPPORT.html. - The STLport C++ runtimes now support RTTI (no exceptions yet though). - Add a new C++ support runtime named "gnustl_shared" corresponding to the shared library version of GNU libstdc++ v3 (GPLv3 license). See more info at docs/CPLUSPLUS-SUPPORT.html - You can now list several file extensions in LOCAL_CPP_EXTENSION. As in: LOCAL_CPP_EXTENSION := .cpp .cxx To compile both foo.cpp and bar.cxx as C++ sources. - Refreshed the EGL and OpenGLES Khronos headers to support more extensions. Note that this does *not* change the NDK ABIs for the corresponding libraries, since each extension must be probed at runtime by the client application. Which extensions are available depends on your actual device (and GPU drivers), not the version of the platform it provides. The header changes simply add new constants and types to make it easier to use the extensions why they have been probed with eglGetProcAddress() or glGetProcAddress(). Here is the list of newly supported extensions: GLES 1.x -------- GL_OES_vertex_array_object GL_OES_EGL_image_external GL_APPLE_texture_2D_limited_npot GL_EXT_blend_minmax GL_EXT_discard_framebuffer GL_EXT_multi_draw_arrays GL_EXT_read_format_bgra GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888 GL_EXT_texture_lod_bias GL_IMG_read_format GL_IMG_texture_compression_pvrtc GL_IMG_texture_env_enhanced_fixed_function GL_IMG_user_clip_plane GL_IMG_multisampled_render_to_texture GL_NV_fence GL_QCOM_driver_control GL_QCOM_extended_get GL_QCOM_extended_get2 GL_QCOM_perfmon_global_mode GL_QCOM_writeonly_rendering GL_QCOM_tiled_rendering GLES 2.0 -------- GL_OES_element_index_uint GL_OES_get_program_binary GL_OES_mapbuffer GL_OES_packed_depth_stencil GL_OES_texture_3D GL_OES_texture_float GL_OES_texture_float_linear GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_vertex_array_object GL_OES_EGL_image_external GL_AMD_program_binary_Z400 GL_EXT_blend_minmax GL_EXT_discard_framebuffer GL_EXT_multi_draw_arrays GL_EXT_read_format_bgra GL_EXT_texture_format_BGRA8888 GL_EXT_texture_compression_dxt1 GL_IMG_program_binary GL_IMG_read_format GL_IMG_shader_binary GL_IMG_texture_compression_pvrtc GL_IMG_multisampled_render_to_texture GL_NV_coverage_sample GL_NV_depth_nonlinear GL_QCOM_extended_get GL_QCOM_extended_get2 GL_QCOM_writeonly_rendering GL_QCOM_tiled_rendering EGL: ---- EGL_ANDROID_recordable EGL_NV_system_time - docs/NATIVE-ACTIVITY.HTML: Fixed typo, the minimum API level should be 9, not 8 for native activities. - removed many unwanted exported symbols from the link-time shared system libraries provided by the NDK. This ensures that code generated with the standalone toolchain doesn't risk to accidentally depend on a non-stable ABI symbol (e.g. any libgcc.a symbol that changes each time the toolchain used to build the platform is changed). - download-toolchain-sources.sh: Script was updated to download the toolchain sources from android.googlesource.com, the new location for AOSP servers. ------------------------------------------------------------------------------- android-ndk-r6b This is a bug-fix release for NDK r6, no new features are provided. IMPORTANT BUG FIXES: - Fixed the multi-architecture build, i.e. when using APP_ABI="armeabi x86" - Fixed location of prebuilt STLport binaries in the NDK release package. (A bug in the packaging script placed them in the wrong location). - Fixed atexit() usage in shared libraries with the x86 standalone toolchain. - Fixed make-standalone-toolchain.sh --arch=x86 (it failed to copy the proper GNU libstdc++ binaries to the right location). - Fixed standalone toolchain linker warnings about missing definition and size for '__dso_handle' symbol (arm only). - Fixed the inclusion order of $(SYSROOT)/usr/include for x86 builds, see http://code.google.com/p/android/issues/detail?id=18540 - Fixed the definitions of ptrdiff_t and size_t in x86-specific system when used with the x86 standalone toolchain. ------------------------------------------------------------------------------- android-ndk-r6 IMPORTANT CHANGES: - Official support for the x86 ABI. This release of the Android NDK now provides support for the 'x86' ABI. This allows you to generate machine code that runs on future x86-based Android devices. Note that by default, code is still generated for ARM-based devices. You can however add 'x86' to your APP_PLATFORM definition in your Application.mk. For example, the following line instructs ndk-build to build your code for three distinct ABIs: APP_ABI := armeabi armeabi-v7a x86 Unless you rely on ARM-based assembly sources, you shouldn't need to touch your Android.mk files to build x86 machine code. For all details regarding x86 support, please read the new documentation file named docs/CPU-X86.html. Don't hesitate to file NDK bugs related to x86 at http://b.android.com - You can build a standalone x86 toolchain using the --toolchain=x86-4.4.3 option when calling make-standalone-toolchain.sh. See docs/STANDALONE-TOOLCHAIN.html for more details. - The new 'ndk-stack' tool can be used to translate stack traces (as reported by adb logcat in case of crash in native code) into something more readable, i.e. containing function / source file / line number information corresponding to each stack frame. For more information and usage example, see the new documentation file docs/NDK-STACK.html OTHER FIXES & CHANGES: - The arm-eabi-4.4.0, which had been deprecated since NDK r5, has been finally removed from the NDK distribution. - Support a project.properties file in the application's directory instead of default.properties. This is in preparation for future SDK Tools changes. ------------------------------------------------------------------------------- android-ndk-r5c This release fixes a few bugs in r5b. There are no new features. IMPORTANT BUG FIXES: - Fixed a typo that prevented LOCAL_WHOLE_STATIC_LIBRARIES to work correctly with the new toolchain. Also properly document this variable in docs/ANDROID-MK.html. - Fixed a bug where code linked against gnustl_static would crash when run on Android platform releases older than 2.2. - <android/input.h>: Two functions in this header file, introduced by API level 9 (a.k.a. 2.3) were incorrect and have been fixed. While this breaks the source API, the binary interface to the system is unchanged. The functions missing a third 'history_index' parameter. They correct definition is now: float AMotionEvent_getHistoricalRawX(const AInputEvent* motion_event, size_t pointer_index, size_t history_index); float AMotionEvent_getHistoricalRawY(const AInputEvent* motion_event, size_t pointer_index, size_t history_index); - Updated the android-9 C library arm binary to correctly expose at link time new functions that were added to it in Gingerbread (e.g. pthread_rwlock_init). - Fixed a bug that made gdbserver crash on misc. Honeycomb devices (e.g. the Motorola Xoom). OTHER FIXES & CHANGES: - Object files are now always linked in the order they appear in LOCAL_SRC_FILES. This was not the case previously because the files were grouped by source extensions instead. - download-toolchain-sources.sh: Fixed a silly bug that prevented the --git-date option to work properly when downloading the master branch. - Fix an issue where a module could import itself, resulting in an infinite loop in GNU Make. - When import-module fails, it now prints the list of directories that were searched. This is useful to check that the NDK_MODULE_PATH definition used by the build system is correct. - When import-module succeeds, it now prints the directory where the module was found to the log (visible with NDK_LOG=1). - <pthread.h>: Fixed the definition of PTHREAD_RWLOCK_INITIALIZER for android-9 API level and higher. - Fixed a bug where LOCAL_ARM_NEON was defined to true would make the build fail (typo in build/core/build-binary.mk) - Fixed a bug that prevented the compilation of .s assembly files (.S files were ok). - Speed-up the build of debuggable applications when there is a very large number of include directories in a project. - ndk-gdb: Better detection of 'adb shell' failures (improves error messages). - ndk-build: Fix a rare bug that appeared when trying to perform parallel builds of debuggable projects. ------------------------------------------------------------------------------- android-ndk-r5b This release fixes a few bugs in r5. There are no new features. IMPORTANT BUG FIXES: - Fix a compiler bug in the arm-linux-androideabi-4.4.3 toolchain. The previous binary generated invalid thumb instruction sequences when dealing with signed chars. This problem was first reported on the android-ndk forum and fixed by the following change in the toolchain sources: https://review.source.android.com/#change,19474 - docs/CPLUSPLUS-SUPPORT.html: Add missing documentation for the "gnustl_static" value for APP_STL, that allows you to link against a static library version of GNU libstdc++. - ndk-build: Fix a bug that created inconsistent dependency files when a compilation error occured on Windows, preventing building properly after the error was fixed in the source code. - ndk-build: Fix a Cygwin-specific bug where using very short paths for the Android NDK installation or the project path could lead to the generation of invalid dependency files, making incremental builds impossible. - Fix a typo that prevented the cpufeatures library to work correctly with the new NDK toolchain. - Linux toolchain binaries now run on Ubuntu 8.04 or higher. More specifically, the r5 binaries did require GLibc 2.11 on the host system, and refused to run with previous releases due to an ABI mismatch in the GNU C Library. The r5b binaries are generated with a special toolchain that instead targets GLibc 2.7 or higher. - GNU libstdc++ will not crash anymore when printing floating-point values through i/o streams. OTHER FIXES & CHANGES: - ndk-build: Speed-up the Cygwin build by avoiding calling "cygpath -m" from GNU Make for each and every source or object file. This was a problem for users with very large source trees. In case this doesn't work properly, define NDK_USE_CYGPATH=1 in your environment to use 'cygpath -m' as usual. Also, if 'cygpath' is not in your path, completely ignore it (seems to be enough to run the NDK under MSys). - ndk-build: Handle installation paths containing spaces when checking cygwin installation. Before that, the script complained that the user was using an incorrect version of GNU Make (even if he had the right one). - Fixed a typo that prevented several NDK_MODULE_PATH to work properly when it contained multiple directories separated with ":" - prebuilt-common.sh: Make the script check the compiler directly for 64-bit generated machine code, instead of relying on the host tag. That should allow the 32-bit toolchain to rebuild properly on Snow Leopard. - prebuilt-common.sh: Fix the toolchain rebuild scripts to work when using a 32-bit host toolchain. - <netinet/in.h>: Add missing declaration for INET_ADDRSTRLEN - <netinet/in6.h>: Add missing declaration for IN6_IS_ADDR_MC_NODELOCAL and IN6_IS_ADDR_MC_GLOBAL. - <asm/byteorder.>: Replaced 'asm' with '__asm__' to allow compilation with -std=c99. See https://review.source.android.com/#change,20076 - standalone toolchain: The -fpic flag is now the default for the arm-linux-androideabi toolchain, instead of -fPIC. This avoids a performance degradation when compared to the old android-eabi configuration. This only affects users of the standalone toolchain. The NDK build script always enforced -fpic implicitely. ------------------------------------------------------------------------------- android-ndk-r5 IMPORTANT BUG FIXES: - Allow dlclose() to properly call static C++ destructors when unloading a shared library. This requires changes in both the C library and the build system. IMPORTANT: This feature is only available for API level 9. - Fix packaging error for system libraries of level 5 and 8. The libraries bundled with the NDK and used at link time were not the correct version, and this prevented linking against certain symbols appropriately. - ndk-gdb: do not start activity unless --start or --launch is used. (the documentation was correct, the implementation wrong) - The system headers for all API levels have been cleaned up and will not provide the declarations of functions that are not available in the corresponding system libraries. IMPORTANT CHANGES: - Support for API level 9, (a.k.a. Android 2.3) which adds the following native features to the platform: - Native audio API based on the Khronos Group OpenSL ES 1.0.1 Standard. New headers <SLES/OpenSLES.h> and <SLES/OpenSLES_Android.h> are provided to allow applications targeting this API level to perform audio input, output and processing directly from native code. - Native activity support, i.e. the ability to build applications that are coded entirely in C or C++. More precisely, such applications still run inside a VM, and will have to access most of the platform's features using JNI (i.e. native code calling VM methods). However, this also comes with a series of headers and libraries to implement the following directly from native code: - activity lifecycle management. - user input handling (touch, keyboard, trackball, ...). - window management (including accessing the pixel buffer). - sensor listeners (e.g. accelerometer, compass, ...). - hardware configuration management. - easily reading assets out of an APK from native code. - access to the storage manager, a new feature of Android X.X that allows one to provide Opaque Binary Objects containing large amounts of data outside of the APK. See the documentation in docs/STABLE-APIS.html for more details. Note that most of these new features are targeted at game developers. - Improved gdbserver binary to allow debugging _threaded_ programs properly with ndk-gdb (the previous binary could only set breakpoints on the main thread). IMPORTANT: THIS ONLY WORKS IF YOU RUN ON ANDROID 2.3 OR HIGHER. The root cause of the problem is a platform bug that was only fixed in 2.3. If you try to debug on a previous platform, the gdbserver binary will only be able to set breakpoints on the main thread. For more information, see the specific section in docs/NDK-GDB.html. - Easier debuggable builds: just invoke ndk-build while defining the NDK_DEBUG variable to 1, as in: $NDK/ndk-build NDK_DEBUG=1 This will have the same result that setting the android:debuggable="true" in the <application> element of your AndroidManifest.xml file. See the file docs/NDK-BUILD.html for more details. Note that you will need to use the SDKr8 build tools to use this feature properly! - Refresh of system C++ headers: - Headers have been moved out of the platform directory hierarchy. This is to prevent conflicts with other STLs like STLport or the GNU libstdc++ which provide their own version of the headers, but does not affect your builds. - The list of headers has grown to include the following: cassert, cctype, cerrno, cfloat, climits, cmath, csetjmp, csignal, cstddef, cstdint, cstdio, cstdlib, cstring, ctime, cwchar, new, typeinfo, utility Note that they still correspond to our minimal C++ runtime, no new feature was introduced here. - Support for C++ exceptions and RTTI. See docs/CPLUSPLUS-SUPPORT.html for all details (and limitations). - STLport implementation: Add sources and prebuilt binaries for a port of the STLport C++ Standard Library (www.stlport.org), and an easy way to use it at build time by defining APP_STL in your Application.mk. See docs/APPLICATION-MK.html and docs/CPLUSPLUS-SUPPORT.html for all details. - GNU libstdc++ implementation: Available as a static library that you can select for your application through APP_STL. See docs/CPLUSPLUS-SUPPORT.html for all details. - Add support for prebuilt libraries with the PREBUILT_SHARED_LIBRARY and PREBUILT_STATIC_LIBRARIES build scripts. See the new documentation file named docs/PREBUILTS.html for explanations and usage examples. - Support for module exports: A module can now define a set of compiler or linker flags that will be automatically 'imported' by any other module that depends on it, through LOCAL_STATIC_LIBRARIES or LOCAL_SHARED_LIBRARIES. This is achieved with the help of new Android.mk variables named LOCAL_EXPORT_CFLAGS, LOCAL_EXPORT_CPPFLAGS, LOCAL_EXPORT_C_INCLUDES and LOCAL_EXPORT_LDLIBS. See docs/ANDROID-MK.html for mode documentation, and a 'samples/module-exports' for a sample project that uses this. - Add support to specify a different file name for generated files, through the new LOCAL_MODULE_FILENAME variable. See docs/ANDROID-MK.html for an example. - Add support for module imports, through the NDK_MODULE_PATH environment variable and the new 'import-module' function. This allows you to avoid hard-coding the path of third-party modules into your project files. See docs/IMPORT-MODULE.html for details. - Add the content of LOCAL_C_INCLUDES to gdb.setup to make native debugging easier. Also fixes an issue that prevented clean parallel builds of debuggable applications to work correctly. This fixes an error message that said: /bin/sh: <project>/libs/armeabi/gdb.setup: No such file or directory When doing a "ndk-build -j<number>", with <number> bigger than 1. - Add support for assembly-level source filtering. See the description of LOCAL_FILTER_ASM in docs/ANDROID-MK.html for more details. This can be useful for certain kinds of obfuscation tasks. - This NDK comes with a new toolchain (named arm-linux-androideabi-4.4.3) which provides many benefits, including: - Better code generation than the previous one (gcc-4.4.0) - On Windows, the binaries do not depend on Cygwin anymore. - The ability to use it as a stand-alone cross-compiler (see docs/STANDALONE-TOOLCHAIN.html for all details). The binaries for gcc-4.4.0 are still provided for backwards compatibility. Use NDK_TOOLCHAIN=arm-eabi-4.4.0 in your environment to force its usage. Note that it is now deprecated and will be removed in a future NDK release. IMPORTANT: The old toolchain doesn't properly support exceptions, RTTI, STLport and GNU libstdc++. The binaries for the already-deprecated gcc-4.2.1 have been removed. - The 'cpufeatures' library has been updated to provide better architecture and features detection (including a work-around for buggy ARMv6 kernels which report an architecture version of 7). The library is now also available as an import module, to simplify its usage in your build scripts. See the updated docs/CPU-FEATURES.html file for details. NOTE: Please update your Android.mk to use module imports as soon as possible. The location $NDK/source/cpufeatures/ is deprecated and will be removed in a future NDK release. Avoid referencing it directly in your build scritps! OTHER FIXES AND CHANGES: - Reduced the size of generated binaries by using --strip-unneeded instead of --strip-debug. This gets rid of mor symbol table entries in release shared libraries and executables, without impacting runtime execution. - Fix bad automatic dependency tracking when using multiple source sub-directories. - The path to system headers is now included last in the compilation command line. This prevents conflicts with source code that define their own headers with similar names (e.g. a custom "err.h" was ignored, because the system <err.h> was used instead). - Update documentation for 'my-dir' function to explain that, due to the way GNU Make works, it really returns the path of the last included Makefile (instead of the current one). Also provide examples on how to deal with it. - make-release.sh: Now has an --out-dir=<path> option to specify the output directory where the packages are going to be copied. Also ensure that generated packages have go+r permissions. - ndk-build will now properly escape arguments. This means that something like this: ndk-build MY_CFLAGS="-DFOO -DBAR" will now work correctly. - Add --git-http option to download-toolchain-sources.sh and rebuild-all-prebuilt.sh in order to download sources from android.git.kernel.org through HTTP. - ndk-gdb: properly launch activities for which name does not contain any dot. - ndk-gdb: add --delay=<timeout> option to specify a delay in seconds between activity launch and gdbserver attach. This is needed because certain activities can take a long time to properly launch. The default delay is also increased to 2 seconds (instead of 1). - build/tools/build-gcc.sh: copy the sysroot to the build directory. This avoids the generated toolchain binaries from hard-coding host build paths. - Platform files are now under $NDK/platforms instead of $NDK/build/platforms - Toolchain files are now under $NDK/toolchains instead of $NDK/build/toolchains and $NDK/build/prebuilt. - Release and debug objects are stored under two different directories now (i.e. obj/local/<abi>/objs and obj/local/<abi>/objs-debug). This prevents rebuilding *everything* when you switch between these two modes, which can be a real time-saver for complex projects. - Fixed a bug that duplicated the LOCAL_LDFLAGS in the final link command when LOCAL_ALLOW_UNDEFINED_SYMBOLS was not set to 'true' ------------------------------------------------------------------------------- android-ndk-r4b This release fixes a few bugs in r4 scripts. There are no new features. OTHER FIXES & CHANGES: - build/tools/rebuild-all-prebuilt.sh: mktemp expects 'XXXXXX' instead of 'XXX'. Fix the script (and others in the same directory) to do that properly. - ndk-gdb: check the target device's API level, and dump an error message if it is not at least 8 (Android 2.2 a.k.a. Froyo). Fix script to properly remove control characters like '\r' from adb shell's output. Also fix script to work properly with OS X's BSD awk. - ndk-build: Make AndroidManifest.xml optional. Now the build scripts will try to look for jni/Android.mk if no manifest is found. If you don't use this, you can also define NDK_PROJECT_PATH to point to your tree. Also, on Windows, check that a Cygwin-compatible make executable is being used, and dump a readable help message to solve the issue if this is not the case. - Place generated binaries under $PROJECT_PATH/obj/ instead of $PROJECT_PATH/bin/ndk/. The 'bin' directory is sometimes cleaned by the JDT, resulting in the inability to properly load symbol versions of the shared libraries when running ndk-gdb. - Warn when sources with unsupported extensions are used in LOCAL_SRC_FILES. Previous behaviour was to silently ignore them. - Set the optimization mode to 'debug' automatically if the manifest sets android:debuggable to 'true'. You can override this by using 'APP_OPTIM := release' in your Application.mk, or by adding '-O2' to your LOCAL_CFLAGS. Note that even in release mode, the NDK build scripts will produce binaries with symbols under obj/local/<abi>/ that will be used for debugging with gdb. However, the debugger will have a harder time to print proper local variable values that have been optimized out or even set breakpoints properly. ------------------------------------------------------------------------------- android-ndk-r4 IMPORTANT BUG FIXES: - The <fenv.h> header was not placed in the correct location and could not be found by normal builds. IMPORTANT CHANGES: - On Windows, Cygwin 1.7 or higher is now required. The NDK will not work properly with Cygwin 1.5 which is now officially obsolete anyway. - Simplified build system: You no longer need to run build/host-setup.sh or modify anything under $NDK_ROOT/apps/. Instead, just invoke the new 'ndk-build' script from your application's project directory, or one of its sub-directories. See docs/OVERVIEW.html and docs/NDK-BUILD.html for more details. NOTE: For compatibility purpose, you can still define projects through $NDK_ROOT/apps/<name> though. However, not that sample applications have moved from 'apps/<name>/project' to 'samples/<name>' and now must be built with 'ndk-build'. The source code of pre-existing samples didn't change though. - Easy native debugging support when running debuggable applications on Android 2.2 or higher, through the new 'ndk-gdb' helper script. See docs/NDK-GDB.html for details. - Support for hardware FPU. This is through the new 'armeabi-v7a' ABI corresponding to ARMv7-a class devices. Note that by default, the NDK will still generate machine code for the old 'armeabi' ABI (ARMv5TE based) which is supported by all official Android system images to date. You will need to define APP_ABI in your Application.mk file to change this. See docs/APPLICATION-MK.html More details about ABIs is now available in docs/CPU-ARCH-ABIS.html - A small static library named 'cpufeatures' is provided with source code and can be used at runtime to determine the CPU features supported by the target device. It should run on all Android platforms, starting from 1.5. For more information, see docs/CPU-FEATURES.html - Support for the optional ARM Advanced SIMD (a.k.a. NEON) instruction set extension through the use the LOCAL_ARM_NEON variable in Android.mk, or the '.neon' suffix when listing source files. Neon is an *optional* instruction set extension, and not all Android ARMv7 devices will support it. You will need to use the 'cpufeatures' library to determine if such code can be used at runtime, and provide alternate code paths if this is not the case. This is similar to MMX/SSE/3DNow on x86 platforms. For more information, see docs/CPU-ARM-NEON.html - Added a new sample (hello-neon) to demonstrate usage of 'cpufeatures' and NEON intrinsics and build support. - Added <android/bitmap.h>, a new stable API available from android-8 (a.k.a. Android 2.2) to reliably access the pixel buffer of an android.graphics.Bitmap object from native code. See docs/STABLE-API.html and the new sample program under 'samples/bitmap-plasma' for details and usage example. - Support the NX (No Execute) security feature, where special sections are added to the generated shared libraries to instruct the kernel that code shall not be executed from the heap and stack by default. See docs/ANDROID-MK.html to see how to disable this, plus reference links for more information. OTHER FIXES AND CHANGES: - support the .s extension for raw assembly sources (.S is already supported but the input files are parsed by the C-preprocessor before being sent to the assembler). - build/host-setup.sh has been removed. There is no need for a 'setup' step when using the NDK for the first time. All host-specific autodetection and basic tool sanity checking have been moved to the build scripts themselves. - APP_MODULES in Application.mk is now optional. If not defined, the NDK will simply build _all_ the modules that are declared from your Android.mk. You can still use APP_MODULES to restrict the set of modules you want to build. Note that the NDK now computes the transitive dependencies of these modules for you now. See docs/APPLICATION-MK.html for details. - docs/STABLE-APIS.html: Add missing section for Dynamic Linker Library (libdl.so). It is actually supported by all API levels. - build/tools/download-toolchain-sources.sh: Use 'master' branch by default instead of the 'eclair' one. - build-toolchain.sh: Allow ad-hoc patching of toolchain sources when rebuilding them. This is primarily to ease development. All you need to do is put a patch under build/tools/toolchain-patches/<foo>/<name>.patch, and it will be applied with 'patch -p1' into the <foo> directory of the unpacked toolchain sources before the configure step. - docs/CPU-ARCH-ABIS.html: Mention the experimental 'x86' ABI. - build/core/mkdeps.sh: Removed obsolete script. - the NDK build script now only parses the Application.mk and Android.mk of the applications listed by APP. The error messages when APP is empty or malformed have also been improved. - removed the annoying 'the mangling of 'va_list' has changed in GCC 4.4' warning when building with GCC 4.4.0 for ARM. - C Library header fixes: For all platforms: - <arpa/inet.h>: no longer includes <netinet/in6.h>. - <ctype.h>: better inlining with -ansi option. - <mntent.h>: add missing include for <stdio.h>. - <netinet/in.h>: include <netinet/in6.h> and define in6addr_any + in6addr_loopback. - <netinet/in6.h>: add IPV6_JOIN_GROUP, IPV6_LEAVE_GROUP, IN6ADDR_ANY_INIT, ipv6mr_interface. - <sys/epoll.h>: add missing C++ inclusion guards. - <sys/resource.h>: add missing rlim_t declaration. - <sys/system_properties.h>: add missing C++ inclusion guards. - <time64.h>: add missing C++ inclusion guards. - <netdb.h>: move h_errno declaration inside C++ inclusion guards. - C Library changes: For android-8 (a.k.a. Android 2.2): - <dlfcn.h>: add DL_info and dladdr(). - <err.h>: add err(), warn() and other variants. - <regex.h>, <fts.h>, <sys/queue.h>: added - <pthread.h>: add pthread_condattr_t - <sched.h>: added proper clone() declaration (and implementation). - <signal.h>: added killpg(). - <stdio.h>: add fdprintf() and vfdprintf(). - <stdlib.h>: fix ptsname_r() signature in declaration. previous implementation was broken anyway. - <unistd.h>: add getusershell(), setusershell(), endusershell(), ttyname(), ttyname_r(), TEMP_FAILURE_RETRY. Fix usleep() signature (now returns int). - <wchar.h>: add fake mbstowcs() and wcstombs(). More details available under docs/system/libc/CHANGES.html ------------------------------------------------------------------------------- android-ndk-r3 IMPORTANT BUG FIXES: - Fix build/host-setup.sh to execute as a Bourne shell script (again) - Make target shared libraries portable to systems that don't use the exact same toolchain. This is needed due to differences in libgcc.a implementations between gcc 4.2.1 and 4.4.0. This change ensures that generated machine code doesn't depend on helper functions provided by the Android platform runtime. IMPORTANT CHANGES: - GCC 4.4.0 is now used by default by the NDK. It generates better code than GCC 4.2.1, which was used in previous releases. However, the compiler's C++ frontend is also a lot more pedantic regarding certain template constructs and will even refuse to build some of them. For this reason, the NDK also comes with GCC 4.2.1 prebuilt binaries, and you can force its usage by defining NDK_TOOLCHAIN in your environment to the value 'arm-eabi-4.2.1'. For example: export NDK_TOOLCHAIN=arm-eabi-4.2.1 make APP=hello-jni Note that only the 'armeabi' ABI is supported by the 4.2.1 toolchain. We recommend switching to 4.2.1 *only* if you encounter compilation problems with 4.4.0. The 4.2.1 prebuilt binaries will probably be removed from a future release of the Android NDK, we thus *strongly* invite you to fix your code if such problems happen. - Support for OpenGL ES 2.0. This is through the new 'android-5' platform to reflect Android 2.0 (previously the Eclair branch). This is merely a copy of android-4 that also includes headers and libraries for OpenGL ES 2.0. See the sample named "hello-gl2" for a *very* basic demonstration. Note that OpenGL ES 2.0 is currently *not* available from Java, and must be used through native code exclusively. IMPORTANT: OpenGL ES 2.0 is not supported in the Android emulator at this time. Running/testing any native code that depends on it thus requires a real device. - The NDK build script will now remove installed binaries from the application project's path before starting the build. This ensures that: - if the build fails for some reason, a stale/obsolete file is not left in your application project tree by mistake. - if you change the target ABI, a stale/obsolete file is not left into the folder corresponding to the old ABI. - Updated the STABLE-APIS.html document to clarify the OpenGL ES 1.0/1.1/2.0 issues regarding specific devices (i.e. 1.0 supported everywhere, 1.1 and 2.0 on specific devices only, need for <uses-feature> tag in manifest). OTHER FIXES AND CHANGES: - Actually use the awk version detected by host-setup.sh during the build. - Only allow undefined symbols when LOCAL_ALLOW_UNDEFINED_SYMBOLS is set to 'true', just like the documentation says it works. Also fix a typo in CLEAR_VARS that prevented this variable from being cleared properly. - Simplified build/tools/make-release.sh, the --prebuilt-dir option is gone, and --help will dump a clearer description of expected options and input files. - Added --prebuilt-ndk=FILE option to build/tools/make-release.sh script to package a new experimental NDK package archive from the current source tree plus the toolchain binaries of an existing NDK release package. E.g.: build/tools/make-release.sh \ --prebuilt-ndk=/path/to/android-ndk-1.6_r1-linux-x86.zip will generate a new NDK package in /tmp/ndk-release that contains the most up-to-date build scripts, plus the toolchain binaries from 1.6_r1 (which are not in the git repository). Also added the --no-git option to collect all sources from the current NDK root directory, instead of the list given by 'git ls-files'. This can be useful if you don't want to checkout the whole 'platform/development' project from repo and still work on the NDK. This change is to help people easily package experimental NDK releases to test and distribute fixes and improvements. - Remove bash-isms from build/tools/build-toolchain.sh. Now it's possible to build it with the 'dash' shell on Debian-based systems (tested on Ubuntu 8.04) - Remove bash-ism from build/tools/build-ndk-sysroot.sh - Refresh C library headers for all platforms: - make <endian.h> simply include <sys/endian.h> - make <stdint.h> properly declare 64-bit integer types with a C99 compiler - add missing <sys/types.h> to <strings.h> - add GLibc-compatible macro aliases (st_atimensec, st_mtimensec and st_ctimensec) to <stat.h> - add missing declaration for tzset() in <time.h> - Added build/tools/download-toolchain-sources.sh, a script that allows you to download the toolchain sources from the official open-source repository at android.git.kernel.org and nicely package them into a tarball that can later be used by build/tools/build-toolchain.sh to rebuild the prebuilt binaries for your system. - Updated build/tools/build-toolchain.sh to support the tarballs generated by download-toolchain-sources.sh with the --package=<file> option. This also builds both gcc 4.2.1 and 4.4.0, adding support for armeabi-v7a to gcc 4.4.0. ------------------------------------------------------------------------------- android-ndk-1.6_r1 IMPORTANT BUG FIXES: - Fix build/host-setup.sh to: * execute as a Bourne shell script * remove unused host gcc dependency * improve Windows host auto-detection * add GNU Make version check * add Nawk/Gawk check * ensure that the script is run from $NDKROOT as build/host-setup.sh * add --help, --verbose, --no-awk-check and --no-make-check options - Properly add sysroot library search path at build time. This makes a line in Android.mk like: LOCAL_LDLIBS := -lz Actually work correctly, instead of having the linker complaining that it could not find the corresponding libz.so library. Also clear LOCAL_LDLIBS in $(CLEAR_VARS) script. IMPORTANT CHANGES: - The 'sources' directory is gone. The NDK build system now looks for $(APP_PROJECT_PATH)/jni/Android.mk by default. You can override this with the new APP_BUILD_SCRIPT variable in Application.mk For example, the 'hello-jni' sample uses the following files: apps/hello-jni/project/jni/Android.mk apps/hello-jni/project/jni/hello-jni.c The 'apps/<name>' directory is still needed in this release though. - Change LOCAL_CFLAGS / LOCAL_CPPFLAGS to work as in the full Android build system. This means that: - LOCAL_CFLAGS is now used for *both* C and C++ sources (was only for C) - LOCAL_CPPFLAGS is now used for C++ sources only (was for both C and C++) - LOCAL_CXXFLAGS is used like LOCAL_CPPFLAGS but is considered obsolete. (will disappear in next release) Also fixed APP_CPPFLAGS / APP_CFLAGS / APP_CXXFLAGS correspondingly. - Rename build/platforms/android-1.5 to build/platforms/android-3 to match the Android API level instead of the marketing speak. Also add a new build/platforms/android-4, and make the build system select which platform to use based on the content of the project file named $(APP_PROJECT_PATH)/default.properties. - Add OpenGL ES 1.x headers and libraries to the android-4 stable APIs. (NOTE: they are *not* available for android-3) Also provide a small port of the "San Angeles Observation" demo to show how to make a simple Android application that uses them. OTHER FIXES AND CHANGES - Ensure that the __ANDROID__ macro is always defined when building code with the NDK. Normally, the macro must be defined by the toolchain automatically to indicate that you're targeting the Android runtime. This works for the new arm-linux-androideabi toolchain, but there is a bug in the way we built the arm-eabi one, so add the flag manually through the NDK build script for it. Note that the ANDROID macro, is now deprecated. While it is still defined by the NDK, you should modify your code to test against __ANDROID__ instead! - Generate thumb binaries by default. - Add support for LOCAL_ARM_MODE in Android.mk. - Add support for the '.arm' suffix in source file names to force the compilation of a single source in ARM (32-bit) mode. - Generate proper unoptimized versions of binaries when APP_OPTIM := debug - Add support for LOCAL_C_INCLUDES in Android.mk - Fix compilation of assembler files (e.g. foo.S) ------------------------------------------------------------------------------- android-ndk-1.5_r1 released.