f5862d8da6
This patch modifies the NDK build scripts to support the 'armeabi-v7a' ABI. (For the record, it corresponds to Thumb-2 + FPU support, to speed up native code on certain devices like the Droid). To build for this ABI, the Application.mk file should use a line like: APP_ABI := armeabi-v7a It is also possible to build for both 'armeabi' and 'armeabi-v7a' by using: APP_ABI := armeabi armeabi-v7a This will result in the generation of two distinct shared libraries that both will be copied to the final application package. This is dependent on having GCC 4.4.0 prebuilt binaries under build/prebuilt/<host>/arm-eabi-4.4.0, since gcc 4.2.1 does not support this new ABI. Note that this also changes the NDK to use gcc 4.4.0 by default, unless the user defines NDK_TOOLCHAIN to 'arm-eabi-4.2.1' in its environment to switch back to the previous one.
186 lines
7.1 KiB
Plaintext
186 lines
7.1 KiB
Plaintext
Android NDK ChangeLog:
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-------------------------------------------------------------------------------
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current version
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IMPORTANT BUG FIXES:
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- Fix build/host-setup.sh to execute as a Bourne shell script (again)
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- Make target shared libraries portable to systems that don't use the exact
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same toolchain. This is needed due to differences in libgcc.a implementations
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between gcc 4.2.1 and 4.4.0. This change ensures that generated machine
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code doesn't depend on helper functions provided by the Android platform
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runtime.
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IMPORTANT CHANGES:
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- Support for hardware FPU. This is through the new 'armeabi-v7a' ABI
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corresponding to ARMv7-a class devices.
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Note that by default, the NDK will still generate machine code for the old
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'armeabi' ABI (ARMv5TE based) which is supported by all official Android
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system images to date.
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You will need to define APP_ABI in your Application.mk file to change this.
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See docs/APPLICATION-MK.TXT
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More details about ABIs is now available in docs/CPU-ARCH-ABIS.TXT
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- GCC 4.4.0 is now used by default by the NDK. It generates better code than
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GCC 4.2.1, which was used in previous releases. However, the compiler's C++
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frontend is also a lot more pedantic regarding certain template constructs
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and will even refuse to build some of them.
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For this reason, the NDK also comes with GCC 4.2.1 prebuilt binaries, and
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you can force its usage by defining NDK_TOOLCHAIN in your environment to
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the value 'arm-eabi-4.2.1'. For example:
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export NDK_TOOLCHAIN=arm-eabi-4.2.1
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make APP=hello-jni
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Note that only the 'armeabi' ABI is supported by the 4.2.1 toolchain. We
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recommend switching to 4.2.1 *only* if you encounter compilation problems
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with 4.4.0.
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The 4.2.1 prebuilt binaries will probably be removed from a future release
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of the Android NDK, we thus *strongly* invite you to fix your code if such
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problems happen.
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- Support for OpenGL ES 2.0. This is through the new 'android-5' platform to
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reflect Android 2.0 (previously the Eclair branch). This is merely a copy
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of android-4 that also includes headers and libraries for OpenGL ES 2.0.
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See the sample named "hello-gl2" for a *very* basic demonstration. Note that
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OpenGL ES 2.0 is currently *not* available from Java, and must be used
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through native code exclusively.
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OTHER FIXES & CHANGES:
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- Actually use the awk version detected by host-setup.sh during the build.
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- Added --prebuilt-ndk=FILE option to build/tools/make-release.sh script to
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package a new experimental NDK package archive from the current source tree
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plus the toolchain binaries of an existing NDK release package. E.g.:
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build/tools/make-release.sh \
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--prebuilt-ndk=/path/to/android-ndk-1.6_r1-linux-x86.zip
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will generate a new NDK package in /tmp/ndk-release that contains the most
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up-to-date build scripts, plus the toolchain binaries from 1.6_r1 (which
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are not in the git repository).
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Also added the --no-git option to collect all sources from the current
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NDK root directory, instead of the list given by 'git ls-files'. This can
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be useful if you don't want to checkout the whole 'platform/development'
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project from repo and still work on the NDK.
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This change is to help people easily package experimental NDK releases to
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test and distribute fixes and improvements.
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- Remove bash-isms from build/tools/build-toolchain.sh. Now it's possible to
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build it with the 'dash' shell on Debian-based systems (tested on Ubuntu 8.04)
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- Remove bash-ism from build/tools/build-ndk-sysroot.sh
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- Refresh C library headers for all platforms:
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- make <endian.h> simply include <sys/endian.h>
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- make <stdint.h> properly declare 64-bit integer types with a C99 compiler
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- add missing <sys/types.h> to <strings.h>
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- add GLibc-compatible macro aliases (st_atimensec, st_mtimensec and
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st_ctimensec) to <stat.h>
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- add missing declaration for tzset() in <time.h>
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- Added build/tools/download-toolchain-sources.sh, a script that allows you
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to download the toolchain sources from the official open-source repository
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at android.git.kernel.org and nicely package them into a tarball that can
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later be used by build/tools/build-toolchain.sh to rebuild the prebuilt
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binaries for your system.
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- Updated build/tools/build-toolchain.sh to support the tarballs generated
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by download-toolchain-sources.sh with the --package=<file> option. This
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also builds both gcc 4.2.1 and 4.4.0, adding support for armeabi-v7a to
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gcc 4.4.0.
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-------------------------------------------------------------------------------
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android-ndk-1.6_r1
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IMPORTANT BUG FIXES:
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- Fix build/host-setup.sh to:
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* execute as a Bourne shell script
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* remove unused host gcc dependency
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* improve Windows host auto-detection
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* add GNU Make version check
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* add Nawk/Gawk check
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* ensure that the script is run from $NDKROOT as build/host-setup.sh
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* add --help, --verbose, --no-awk-check and --no-make-check options
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- Properly add sysroot library search path at build time. This makes a line
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in Android.mk like:
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LOCAL_LDLIBS := -lz
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Actually work correctly, instead of having the linker complaining that it
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could not find the corresponding libz.so library. Also clear LOCAL_LDLIBS
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in $(CLEAR_VARS) script.
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IMPORTANT CHANGES:
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- The 'sources' directory is gone. The NDK build system now looks for
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$(APP_PROJECT_PATH)/jni/Android.mk by default. You can override this with
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the new APP_BUILD_SCRIPT variable in Application.mk
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For example, the 'hello-jni' sample uses the following files:
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apps/hello-jni/project/jni/Android.mk
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apps/hello-jni/project/jni/hello-jni.c
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The 'apps/<name>' directory is still needed in this release though.
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- Change LOCAL_CFLAGS / LOCAL_CPPFLAGS to work as in the full Android build
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system. This means that:
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- LOCAL_CFLAGS is now used for *both* C and C++ sources (was only for C)
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- LOCAL_CPPFLAGS is now used for C++ sources only (was for both C and C++)
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- LOCAL_CXXFLAGS is used like LOCAL_CPPFLAGS but is considered obsolete.
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(will disappear in next release)
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Also fixed APP_CPPFLAGS / APP_CFLAGS / APP_CXXFLAGS correspondingly.
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- Rename build/platforms/android-1.5 to build/platforms/android-3 to match
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the Android API level instead of the marketing speak.
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Also add a new build/platforms/android-4, and make the build system select
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which platform to use based on the content of the project file named
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$(APP_PROJECT_PATH)/default.properties.
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- Add OpenGL ES 1.x headers and libraries to the android-4 stable APIs.
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(NOTE: they are *not* available for android-3)
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Also provide a small port of the "San Angeles Observation" demo to show
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how to make a simple Android application that uses them.
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OTHER FIXES & CHANGES
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- Generate thumb binaries by default.
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- Add support for LOCAL_ARM_MODE in Android.mk.
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- Add support for the '.arm' suffix in source file names to force the
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compilation of a single source in arm (32-bit) mode.
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- Generate proper unoptimized versions of binaries when APP_OPTIM := debug
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- Add support for LOCAL_C_INCLUDES in Android.mk
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- Fix compilation of assembler files (e.g. foo.S)
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-------------------------------------------------------------------------------
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android-ndk-1.5_r1 released.
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