diff options
Diffstat (limited to 'docs/html-ndk/ndk/downloads/revision_history.jd')
| -rw-r--r-- | docs/html-ndk/ndk/downloads/revision_history.jd | 3237 |
1 files changed, 3237 insertions, 0 deletions
diff --git a/docs/html-ndk/ndk/downloads/revision_history.jd b/docs/html-ndk/ndk/downloads/revision_history.jd new file mode 100644 index 0000000..a32b814 --- /dev/null +++ b/docs/html-ndk/ndk/downloads/revision_history.jd @@ -0,0 +1,3237 @@ +page.title=NDK Revision History +@jd:body + +<p>This page provides information on previous releases of the NDK, enumerating the changes that +took place in each new version.</p> + +<div class="toggle-content closed"> +<a name="10d"></a> + <p> + <a href="#" onclick="return toggleContent(this)"> <img + src="/assets/images/triangle-closed.png" class="toggle-content-img" alt="" + >Android NDK, Revision 10d</a> <em>(December 2014)</em> + </p> + <div class="toggle-content-toggleme"> + <dl> + <dt>Important changes:</dt> + <dd> + <ul> + <li>Made GCC 4.8 the default for all 32-bit ABIs. Deprecated GCC 4.6, and + will remove it next release. To restore previous behavior, either add + <code>NDK_TOOLCHAIN_VERSION=4.6</code> to ndk-build, or + add <code>--toolchain=arm-linux-androideabi-4.6</code> when executing + <code>make-standalone-toolchain.sh</code> on the command line. GCC 4.9 remains the + default for 64-bit ABIs.</li> + + <li>Stopped all x86[_64] toolchains from adding <code>-mstackrealign</code> by default. The + NDK toolchain assumes a 16-byte stack alignment. The tools and options used by default + enforce this rule. A user writing assembly code must make sure to preserve stack + alignment, and ensure that other compilers also comply with this rule. + (GCC bug <a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=38496">38496</a>)</li> + + <li>Added Address Sanitizer functionality to Clang 3.5 support to the ARM and x86 ABIs. + For more information on this change, see the + <a href="https://code.google.com/p/address-sanitizer/wiki/Android">Address + Sanitizer</a> project.</li> + + <li>Introduced the requirement, starting from API level 21, to use <code>-fPIE -pie + </code> when building. In API levels 16 and higher, ndk-build uses <code>PIE</code> + when building. This change has a number of implications, which are discussed in + <a href="https://code.google.com/p/android-developer-preview/issues/detail?id=888"> + Developer Preview Issue 888</a>. + These implications do not apply to shared libraries.</li> + </ul> + </dd> + <dl> + + + <dt>Important bug fixes:</dt> + <dd> + <ul> + <li>Made more fixes related to + <a href="https://gcc.gnu.org/ml/gcc-patches/2014-10/msg00906.html"> + A53 Errata #835769</a> in the aarch64-linux-android-4.9 linker. As part of this, GCC + passes a new option, <code>--fix-cortex-a53-835769</code>, when + <code>-mfix-cortex-a53-835769</code> (enabled by default) is specified. + For more information, see this + <a href="https://sourceware.org/ml/binutils/2014-10/msg00198.html">binutils message</a> + and this + <a href="https://sourceware.org/ml/binutils/2014-11/msg00287.html">binutils message</a>. + </li> + + <li>Documented a fix to a libc++ <code>sscanf/vsscanf</code> hang that occurred in API level + 21. The fix itself had been implemented in r10c. + (Issue <a href="http://b.android.com/77988">77988</a>)</li> + + <li>Fixed an AutoFDO (<code>-fauto-profile</code>) crash that occurred with GCC 4.9 when + <code>-Os</code> was specified. (Issue <a href="http://b.android.com/77571">77571</a>)</li> + </ul> + </dd> + + + <dt>Other bug fixes:</dt> + <dd> + <ul> + <li>Made the following header and library fixes:</li> + <ul> + <li>Added <code>posix_memalign</code> to API level 16. Also, added a prototype in + <code>stdlib.h</code> to API levels 16 to 19. + (Issue <a href="http://b.android.com/77861">77861</a>)</li> + <li>Fixed <code>stdatomic.h</code> so that it includes <code><atomic></code> only for + C++11.</li> + <li>Modified the following headers for standalone use: <code>sys/user.h</code>, and + <code>gl2ext.h</code>, <code>dlext.h</code>, <code>fts.h</code>, <code>sgidefs.h</code> + for API level 21.</li> + <li>Modified <code>sys/user.h</code> to rename <code>mxcsr_mask</code> as <code>mxcr_mask</code>, + and to change the data type for <code>u_ar0</code></li> from <code>unsigned long</code> + to </code>struct user_regs_struct*</code>. + <li>Changed <code>sysconf()</code> return value type from <code>int</code> to + <code>long</code>.</li> + </ul> + + <li>Fixed ndk-build's handling of <code>thumb</code> for <code>LOCAL_ARM_MODE</code>: In + r10d, ndk-build adds <code>LOCAL_LDFLAGS+=-mthumb</code> by default, unless one of the + following conditions applies:</li> + <ul> + <li>You have set <code>LOCAL_ARM_MODE</code> equal to <code>arm</code>.</li> + <li>You are doing a debug build (with settings such as <code>APP_OPTIM=debug</code> and + <code>AndroidManifest.xml</code> containing <code>android:debuggable="true"</code>), + where ARM mode is the default in order to retain compatibility with earlier toolchains. + (Issue <a href="http://b.android.com/74040">74040</a>)</li> + </ul> + + <li>Fixed <code>LOCAL_SRC_FILES</code> in ndk-build to use Windows absolute paths. + (Issue <a href="http://b.android.com/74333">74333</a>)</li> + + <li>Removed bash-specific code from ndk-gdb. (Issue <a href="http://b.android.com/73338">73338</a>)</li> + + <li>Removed bash-specific code from <code>make-standalone-toolchain.sh</code>. + (Issue <a href="http://b.android.com/74145">74145)</a></li> + + <li>Revised documentation concerning a fix for <code>System.loadLibrary()</code> transitive + dependencies. (Issue <a href="http://b.android.com/41790">41790</a>)</li> + + <li>Fixed a problem that was preventing 64-bit packages from extracting on Ubuntu 14.04 and + OS X 10.10 (Yosemite). (Issue <a href="http://b.android.com/78148">78148</a>)</li> + + <li>Fixed an issue with <code>LOCAL_PCH</code> to improve Clang support. (Issue + <a href="http://b.android.com/77575">77575</a>)</li> + + <li>Clarified "requires executable stack" warning from ld.gold. (Issue + <a href="http://b.android.com/79115">79115</a>)</li> + </ul> + </dd> + + </dl> + </div> +</div> + + + + + + + +<div class="toggle-content closed"> +<a name="10c"></a> + <p> + <a href="#" onclick="return toggleContent(this)"> <img + src="/assets/images/triangle-closed.png" class="toggle-content-img" alt="" + >Android NDK, Revision 10c</a> <em>(October 2014)</em> + </p> + <div class="toggle-content-toggleme"> + <dl> + <dt>Important changes:</dt> + <dd> + <ul> + <li>Made the following changes to download structure:</li> + <ul> + <li>Each package now contains both the 32- and the 64-bit headers, libraries, and tools for + its respective platform.</li> + <li>STL libraries with debugging info no longer need be downloaded separately.</li> + </ul> + <li>Changed everything previously called <code>Android-L</code> to the official release + designation: <code>android-21</code>.</li> + <li>Updated GCC 4.9 by rebasing to the <code>google</code> branch + of the GCC repository. Major differences from the upstream version of GCC 4.9 include:</li> + + <ul> + <li>The <code>-O2</code> option now turns on vectorization, without loop peeling but with more + aggressive unrolling.</li> + <li>Enhancements to FDO and <a href="https://gcc.gnu.org/wiki/LightweightIpo#LIPO_-_Profile_Feedback_Based_Lightweight_IPO"> + LIPO</a></li> + <p>For more detailed information, see <em>Important bug fixes</em> below.</p> + </ul> + + <li>Added Clang 3.5 support to all hosts: <code>NDK_TOOLCHAIN_VERSION=clang</code> + now picks Clang 3.5. Note that:</li> + <ul> + + <li>ARM and x86 default to using the integrated assembler. If this causes issues, use + <code>-fno-integrated-as</code> as a workaround.</code> + <li>Clang 3.5 issues more warnings for unused flags, such as the <code>-finline-functions</code> + option that GCC supports.</li> + <p>When migrating from projects using GCC, you can use + <code>-Wno-invalid-command-line-argument</code> and <code>-Wno-unused-command-line-argument</code> + to ignore the unused flags until you're able decide on what to do with them longer-term.</p> + + </ul> + <li>Made it possible to enter ART debugging mode, when debugging on an Android 5.0 device using + ART as its virtual machine, by specifying the <code>art-on</code> option. For more information, + see <code>prebuilt/common/gdb/common.setup</code> in the directory containing the NDK.</li> + <li>Removed support for Clang 3.3.</li> + <li>Deprecated GCC 4.6, and may remove it from future releases.</li> + <li>Updated mclinker to 2.8 with Identical Code Folding ("ICF") support. Specify ICF using the + <code>--icf</code> option.</li> + <li>Broadened <code>arm_neon.h</code> support in x86 and x86_64, attaining coverage of ~93% of + NEON intrinsics. For more information about NEON support: + <ul> + <li>Navigate to the NDK Programmer's Guide (<code>docs/Programmers_Guide/html/</code>), and see + Architectures and CPUs > Neon.</li> + <li>Examine the updated <code>hello-neon</code> sample in <code>samples/</code>. + <li>See Intel's guide to <a href="https://software.intel.com/en-us/blogs/2012/12/12/from-arm-neon-to-intel-mmxsse-automatic-porting-solution-tips-and-tricks"> porting from ARM NEON to Intel SSE.</a></li> + </ul> + <li>Documented support for <code>_FORTIFY_SOURCE</code> in <code>headers/libs/android-21</code>, + which appeared in r10 (when <code>android-21</code> was still called <code>Android-L</code>), + but had no documentation.</li> + </ul> + </dd> + <dl> + + + <dt>Important bug fixes:</dt> + <dd> + <ul> + <li>Fixed an internal compiler error with GCC4.9/aarch64 that was causing the following + error message (Issue <a href="http://b.android.com/77564">77564</a>):</li> +<pre> +internal compiler error: in simplify_const_unary_operation, at simplify-rtx.c:1539 +</pre> + <li>Fixed incorrect code generation from GCC4.9/arm. (Issue + <a href="http://b.android.com/77567">77567<a>)</li> + <li>Fixed an internal compiler error with GCC4.9/mips involving inline-assembly. (Issue + <a href="http://b.android.com/77568">77568</a>)</li> + <li>Fixed incorrect code that GCC4.9/arm was generating for <code>x = (cond) ? y : x</code>. + (Issue <a href="http://b.android.com/77569">77569</a>)</li> + <li>Fixed GCC4.9/aarch64 and Clang3.5/aarch64 to work around the + <a href="http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20141006/116322.html"> + Cortex-A53 erratum (835769)</a> by default. Disable the workaround by specifying + <code>-mno-fix-cortex-a53-835769</code>.</li> + </ul> + </dd> + + + <dt>Other bug fixes:</dt> + <dd> + <ul> + <li>Made the following header and library fixes to <code>android-21</code>: + <ul> + + <li>Added more TV keycodes: <code>android/keycodes.h</code></li> + <li>Added more constants and six new sensor functions to <code>android/sensor.h</code>: + <code>ASensorManager_getDefaultSensorEx</code>, <code>ASensor_getFifoMaxEventCount</code>, + <code>ASensor_getFifoReservedEventCount</code>, <code>ASensor_getStringType</code>, + <code>ASensor_getReportingMode</code>, and <code>ASensor_isWakeUpSensor</code>.</li> + <li>Fixed <code>stdatomic.h</code> to improve compatibility with GCC 4.6, and provide support + for the <code><atomic></code> header.</li> + <li>Added <code>sys/ucontext.h</code> and <code>sys/user.h</code> to all API levels. The + <code>signal.h</code> header now includes <code><sys/ucontext.h></code>. You may + remove any existing definition of <code>struct ucontext</code>.</li> + <li>Added <code>posix_memalign</code> to API levels 17, 18, and 19.</li> + <li>Added the following functions to all architectures: + <code>android_set_abort_message</code>, <code>posix_fadvise</code>, + <code>posix_fadvise64</code>, <code>pthread_gettid_np</code>.</li> + <li>Added the required permissions to the <code>native-media/AndroidManifest.xml</code> + sample. + (Issue <a href="https://android-review.googlesource.com/#/c/106640/">106640</a>)</li> + <li>Added <code>clock_nanosleep</code> and <code>clock_settime</code> to API level 21. (Issue + <a href="http://b.android.com/77372">77372</a>) + <li>Removed the following symbols from all architectures: + <code>get_malloc_leak_info</code>, <code>free_malloc_leak_info</code>, + <code>__srget</code>, <code>__swbuf</code>, <code>__srefill</code>, <code>__swsetup</code>, + <code>__sdidinit</code>, <code>__sflags</code>, <code>__sfp</code>, + <code>__sinit</code>, <code>__smakebuf</code>, <code>__sflush</code>, <code>__sread</code>, + <code>__swrite</code>, <code>__sseek</code>, <code>__sclose</code>, + <code>_fwalk</code>, <code>__sglue</code>, <code>__get_thread</code>, <code>__wait4</code>, + <code>__futex_wake</code>, <code>__open</code>, <code>__get_tls</code>, + <code>__getdents64</code>, and <code>dlmalloc</code>.</li> + <li>Removed the following functions from the 64-bit architectures: <code>basename_r</code>, + <code>dirname_r</code>, <code>__isthreaded</code>, <code>_flush_cache</code> (mips64).</li> + <li>Removed the following function from the 32-bit architectures: + <code>__signalfd4</code>.</li> + <li>Changed the type of the third argument from <code>size_t</code> to <code>int</code> in + the following functions: <code>strtoll_l</code>, <code>strtoull_l</code>, + <code>wcstoll_l</code>, and <code>wcstoull_l</code>.</li> + <li>Restored the following functions to the 64-bit architecture: <code>arc4random</code>, + <code>arc4random_buf</code>, and <code>arc4random_uniform</code>.</li> + <li>Moved <code>cxa_*</code> and the <code>new</code> and <code>delete</code> operators back + to <code>libstdc++.so</code>. This change restores r9d behavior; previous versions of r10 + contained dummy files.</li> + + </ul> + <li>Restored MXU support in GCC 4.8 and 4.9 for mips. This support had been absent from + r10 and r10b because those versions of GCC had been compiled with binutils-2.24, which did + not support MXU. It now does.</li> + <li>Fixed <code>--toolchain=</code> in <code>make-standalone-toolchain.sh</code> so that it + now properly supports use of a suffix specifying a version of Clang.</li> + <li>Fixed the libc++/armeabi <code>strtod()</code> functions.</li> + <li>Made fixes to NDK documentation in <code>docs/</code>.</li> + </ul> + </dd> + + <dt>Other changes:</dt> + <dd> + <ul> + <li>Enhanced <code>cpu-features</code> to detect ARMv8 support for the following + instruction sets: AES, CRC32, SHA2, SHA1, and 64-bit PMULL/PMULL2. (Issue + <a href="https://android-review.googlesource.com/#/c/106360/">106360</a>)</li> + + <li>Modified ndk-build to use <code>*-gcc-ar</code>, which is available in GCC 4.8, GCC 4.9, and + Clang. Clang specifies it, instead of <code>*-ar</code>. This setting brings improved LTO + support.</li> + + <li>Removed the <code>include-fixed/linux/a.out.h</code> and + <code>include-fixed/linux/compiler.h</code> headers from the GCC compiler. + (Issue <a href ="http://b.android.com/73728">73728</a>)</li> + + <li>Fixed an issue related to <code>-flto</code> with GCC 4.8 on Mac OS X. The error message + read:</li> + + <pre> +.../ld: error: .../libexec/gcc/arm-linux-androideabi/4.9/liblto_plugin.so +Symbol not found: _environ +</pre> + + <li>Fixed a typo in <code>build-binary.mk.</code> (Issue + <a href="http://b.android.com/76992">76992</a>)</li> + </ul> + </dd> + + <dt>Important known issues:</dt> + <dd> + <ul> + <li>Specifying -Os (<code>-fauto-profile</code>) in GCC4.9 may cause crashing. + (Issue <a href="http://b.android.com/77571">77571</a>)</li> + </ul> + </dd> + + </dl> + </div> +</div> + +<div class="toggle-content closed"> +<a name="10b"></a> + <p> + <a href="#" onclick="return toggleContent(this)"> <img + src="/assets/images/triangle-closed.png" class="toggle-content-img" alt="" + >Android NDK, Revision 10b</a> <em>(September 2014)</em> + </p> + <div class="toggle-content-toggleme"> + <dl> + + <dt>Important notes:</dt> + <dd> + <ul> + <li>Because of the 512MB size restriction on downloadable packages, the following 32-bit items are not in the 32-bit NDK download packages. Instead, they reside in the 64-bit ones:</li> + <ul> + <li>Android-L headers</li> + <li>GCC 4.9</li> + </ul> + <li>Currently, the only Renderscript support provided by the NDK is for 32-bit Renderscript with Android 4.4 (API level 19). You cannot build HelloComputeNDK (the only Renderscript sample) with any other combination of Renderscript (32- or 64-bit) and Android version.</li> + <li>To compile native-codec, you must use a 64-bit NDK package, which is where all the Android-L headers are located. </li> + </ul> + </dd> + + + <dt>Important bug fixes:</dt> + <dd> + <ul> + <li>Fixed gdb 7.6 in GCC 4.8/4.9. (Issues <a href="http://b.android.com/74112">74112</a> and <a href="http://b.android.com/74371">74371</a>.)</li> + <li>Fixed GCC 4.8/4.9 for x86, so that they no longer enable <code>-msse4.2</code> and <code>-mpopcnt</code> by default. (Issue <a href="http://b.android.com/73843">73843</a>.)</li> + </ul> + </dd> + + <dt>Other bug fixes:</dt> + <dd> + <ul> + <li>Removed <code>stdio.h</code> from the <code>include-fixed/</code> directories of all versions of GCC. (Issue <a href="http://b.android.com/73728">73728</a>.)</li> + <li>Removed duplicate header files from the Windows packages in the <code>platforms/android-L/arch-*/usr/include/linux/netfilter*/</code> directories. (Issue <a href="https://code.google.com/p/android/issues/detail?id=73704">73704</a>.)</li> + <li>Fixed a problem that prevented Clang from building HelloComputeNDK.</li> + <li>Fixed atexit. (Issue <a href="http://b.android.com/66595">66595</a>.)</li> + <li>Made various fixes to the docs in <code>docs/</code> and <code>sources/third_party/googletest/README.NDK</code>. (Issue <a href="http://b.android.com/74069">74069</a>.)</li> + <li>Made the following fixes to the Android-L headers:</li> + <ol> + <li>Added the following functions to <code>ctype.h</code> and <code>wchar.h</code>: <code>dn_expand()</code>, <code>grantpt()</code>, <code> inet_nsap_addr()</code>, <code>inet_nsap_ntoa()</code>, <code>insque()</code>, <code>nsdispatch()</code>, <code>posix_openpt()</code>, <code>__pthread_cleanup_pop()</code>, <code>__pthread_cleanup_push()</code>, <code>remque()</code>, <code>setfsgid()</code>, <code>setfsuid()</code>, <code>splice()</code>, <code>tee()</code>, <code>twalk()</code> (Issue <a href = "http://b.android.com/73719">73719</a>), and 42 <code>*_l()</code> functions.</li> + + <li>Renamed <code>cmsg_nxthdr</code> to <code>__cmsg_nxthdr</code>.</li> + + <li>Removed <code>__libc_malloc_dispatch</code>.</li> + + <li>Changed the <code>ptrace()</code> prototype to <code>long ptrace(int, ...);</code>.</li> + + <li>Removed <code>sha1.h</code>.</li> + + <li>Extended <code>android_dlextinfo</code> in <code>android/dlext.h</code>.</li> + + <li>Annotated <code>__NDK_FPABI__</code> for functions receiving or returning float- or double-type values in <code>stdlib.h</code>, <code>time.h</code>, <code>wchar.h</code>, and <code>complex.h</code>.</li> + </ol> + </ul> + </dd> + + <dt>Other changes:</dt> + <dd> + <ul> + <li>Updated <code>mipsel-linux-android-4.9</code> and <code>mips64el-linux-android-4.9</code>, implementing a new multilib directory layout, and providing support for gdb-7.7</li> + <li>Enhanced <code>cpu-features</code> to detect more arm64 features. (Change list <a href="https://android-review.googlesource.com/#/c/100339">100339</a>.)</li> + </dd> + </ul> + + </dl> + </div> +</div> + +<div class="toggle-content closed"> +<a name="10"></a> + <p> + <a href="#" onclick="return toggleContent(this)"> <img + src="/assets/images/triangle-closed.png" class="toggle-content-img" alt="" + >Android NDK, Revision 10</a> <em>(July 2014)</em> + </p> + <div class="toggle-content-toggleme"> + <dl> + <dt>Important changes:</dt> + <dd> + <ul> + <li>Added 3 new ABIs, all 64-bit: arm64-v8a, x86_64, mips64.</li> Note that: + <ul> + <li>GCC 4.9 is the default compiler for 64-bit ABIs. Clang is currently version 3.4. +<code>NDK_TOOLCHAIN_VERSION=clang</code> + may not work for arm64-v8a and mips64.</li> + <li>Android-L is the first level with 64-bit support. Note that this API +level is a temporary one, and only for L-preview. An actual API level number will replace it at +L-release.</li> + <li>This release includes now includes <code>all32</code> and <code>all64</code> +settings for <code>APP_ABI</code>. + <ul> + <li><code>APP_ABI=all32</code> is equivalent to +<code>APP_ABI=armeabi,armeabi-v7a,x86,mips</code>.</li> + <li><code>APP_ABI=all64</code> is equivalent to +<code>APP_ABI=arm64-v8a,x86_64,mips64</code>.</li> + <li><code>APP_ABI=all</code> selects all ABIs.</li> + </ul> + <li>The new GNU libstdc++ in Android-L contains all <code><tr1/cmath></code> +Before defining your own math function, check <code>_GLIBCXX_USE_C99_MATH_TR1</code> to see a +function with that name already exists, in order to avoid "multiple definition" errors from the +linker.</li> + <li>The cpu-features library has been updated for the ARMv8 kernel. The existing +cpu-features library may fail to detect the presence of NEON on the ARMv8 platform. Recompile your +code with the new version.</li> + </ul> + <li>Added a new <code>platforms/android-L/</code> API directory. It includes:</li> + <ul> + <li>Updated Bionic headers, which had not changed from Android API levels 3 +(Cupcake) to 19 (KitKat). This new version, for level L, is to be synchronized with AOSP.</li> + <li>New media APIs and a native-codec sample.</li> + <li>An updated <code>Android.h</code> header for SLES/OpenSLES, enabling support for +single-precision, floating-point audio format in AudioPlayer.</li> + <li>GLES 3.1 and AEP extensions to <code>libGLESv3.so.</code></li> + <li>GLES2 and GLES3 headers updated to the latest official Khronos versions.</li> + </ul> + <li>Added GCC 4.9 compilers to the 32-/64-bit ABIs. GCC 4.9 is the default (only) compiler +for 64-bit ABIs, as previously mentioned. For 32-bit ABIs, you must explcitly enable GCC 4.9, as +GCC 4.6 is still the default.</li> + <ul> + <li>For ndk-build, enable 32-bit, GCC 4.9 building either by adding +<code>NDK_TOOLCHAIN_VERSION=4.9</code> to <code>Application.mk</code>, or exporting it as an +environment variable from the command line.</li> + <li>For a standalone toolchain, use the <code>--toolchain=</code> option in the +<code>make-standalone-toolchain.sh</code> script. For example: <code>--toolchain=arm-linux-androideabi-4.9.</code></li> + </ul> + <li>Upgraded GDB to version 7.6 in GCC 4.8/4.9 and x86*. Since GDB is still at version GDB-7.3.x in +GCC 4.6 (the default for ARM and MIPS), you must set +<code>NDK_TOOLCHAIN_VERSION=4.8</code> or <code>4.9</code> to enable ndk-gdb to select GDB 7.6.</li> + <li>Added the <code>-mssse3</code> build option to provide SSSE3 support, and made it the default for ABI x86 +(upgrading from SSE3). The image released by Google does not contain SSSE3 instructions.</li> + <li>Updated GCC 4.8 to 4.8.3.</li> + <li>Improved ARM libc++ EH support by switching from gabi++ to libc++abi. For details, see the "C++ Support" section of the documentation. + Note that:</li> + <ul> + <li>All tests except for locale now pass for Clang 3.4 and GCC 4.8. For more +information, see the "C++ Support" section of the documentation.</li> + <li>The libc++ libraries for X86 and MIPS libc++ still use gabi++.</li> + <li>GCC 4.7 and later can now use <atomic>.</li> + <li>You must add <code>-fno-strict-aliasing</code> if you use <code> <list></code>, because <code>__list_imp::_end</code>_ breaks + TBAA rules. (Issue <a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61571">61571</a>.)</li> + <li>As of GCC 4.6, LIBCXX_FORCE_REBUILD:=true no longer rebuilds libc++. Rebuilding it +requires the use of a different compiler. Note that Clang 3.3 is untested.</li> + </ul> + <li>mclinker is now version 2.7, and has aarch64 Linux support.</li> + <li>Added precompiled header support for headers specified by <code>LOCAL_PCH</code>. (Issue <a href="http://b.android.com/25412">25412</a>).</li> + </dd> + <dl> + + + <dt>Important bug fixes:</dt> + <dd> + <ul> + <li>Fixed libc++ so that it now compiles <code>std::feof</code>, etc. (Issue <a +href="http://b.android.com/66668">66668</a>).</li> + <li>Fixed a Clang 3.3/3.4 atomic library call that caused crashes in some of the libc++ +tests for ABI armeabi.</li> + <li>Fixed Clang 3.4 crashes that were occurring on reading precompiled headers. (Issue <a +href="http://b.android.com/66657">66657</a>).</li> + <li>Fixed the Clang 3.3/3.4 <code>-O3</code> assert on:</li> + <code>llvm-3.2/llvm/include/llvm/MDBuilder.h:64: llvm::MDNode* +llvm::MDBuilder::createBranchWeights(llvm::ArrayRef<unsigned int>): Assertion Weights.size() >= 2 +&& "Need at least two branch weights!"</code> (Issue <a href="http://b.android.com/57381">57381</a>). + <li>Fixed the following Clang 3.3/3.4 crash:</li> + <code>Assertion failed: (!Fn && "cast failed but able to resolve overload expression!!"), function CheckCXXCStyleCast, file +Volumes/data/ndk-toolchain/src/llvm-3.3/llvm/tools/clang/lib/Sema/SemaCast.cpp, line 2018</code>. +(Issue <a href="http://b.android.com/66950">66950</a>). + </ul> + </dd> + + <dt>Other bug fixes:</dt> + <dd> + <ul> + <li>Fixed headers:</li> + <ul> + <li>Fixed 32-bit <code>ssize_t</code> to be <code>int</code> instead of <code>long +int</code>.</li> + <li>Fixed <code>WCHAR_MIN</code> and <code>WCHAR_MAX</code> so that they they take +appropriate signs according to the architecture they're running on:</li> + <ul> + <li>X86/MIPS: signed. + <li>ARM: unsigned. + <li>To force X86/MIPS to default to unsigned, use +<code>-D__WCHAR_UNSIGNED__</code>.</li> + <li>To force <code>wchar_t</code> to be 16 bits, use <code>-fshort-wchar</code>.</li> + </ul> + <li>Removed non-existent symbols from 32-bit <code>libc.so</code>, and added <code>pread64</code>, +<code>pwrite64</code>, <code>ftruncate64</code> for +Android API level 12 and higher. (Issue <a href="http://b.android.com/69319">69319</a>). For more +information, see the commit message accompanying AOSP change list + <a href="https://android-review.googlesource.com/#/c/94137">94137</a>.</li> + </ul> + <li>Fixed GCC warning about redefinition of <code>putchar</code>. Warning message reads:</li> + <code>include/stdio.h:236:5: warning: conflicts with previous declaration here +[-Wattributes] int putchar(int);</code> (Change list <a +href="https://android-review.googlesource.com/#/c/91185">91185</a>). + <li>Fixed <code>make-standalone-toolchain.sh --stl=libc++</code> so that it:</li> + <ul> + <li>Copies <code>cxxabi.h</code>. (Issue <a +href="http://b.android.com/68001">68001</a>).</li> + <li>Runs in directories other than the NDK install directory. (Issues <a +href="http://b.android.com/67690">67690</a> and <a href="http://b.android.com/68647">68647</a>).</li> + </ul> + <li>Fixed GCC/Windows to quote arguments only when necessary for spawning processes in +external programs. This change decreases the likelihood of exceeding the 32K length limit.</li> + <li>Fixed an issue that made it impossible to adjust the <code>APP_PLATFORM</code> +environment variable.</li> + <li>Fixed the implementation of <code>IsSystemLibrary()</code> in crazy_linker so that it +uses <code>strrchr()</code> + instead of <code>strchr()</code> to find the library path's true basename.</li> + <li>Fixed native-audio's inability to build in debug mode.</li> + <li>Fixed gdb's inability to print extreme floating-point numbers. (Issue <a +href="http://b.android.com/69203">69203</a>).</li> + <li>Fixed Clang 3.4 inability to compile with <code>-Wl,-shared</code> (as opposed to +<code>-shared</code>, which + had no compilation issues). The problem was that Clang added <code>-pie</code> for Android +targets if neither <code>-shared</code> nor <code>-static</code> existed. This behavior, which was +incorrect, caused the linker to complain that <code>-shared</code> and <code>-pie</code> could not +co-exist.</li> + + </ul> + </dd> + + + <dt>Other changes:</dt> + <dd> + <ul> + <li>Added <code>arm_neon.h</code> to the x86 toolchain so that it now emulates ~47% of +Neon. There is currently no support for 64-bit types. For more information, see the section on ARM +Neon intrinsics support in the x86 documentation.</li> + <li>Ported ARM/GOT_PREL optimization (present in GCC 4.6 built from the GCC google branch) to +ARM GCC 4.8/4.9. This optimization sometimes reduces instruction count when accessing global +variables. As an example, see the build.sh script in +<code>$NDK/tests/build/b14811006-GOT_PREL-optimization/</code>.</li> + <li>Added ARM version for STL gabi++, stlport, and libc++. They now have both it and Thumb +mode.</li> + <li>It is now possible to call the make-standalone-toolchain.sh script with +<code>--toolchain=x86_64-linux-android-4.9</code>, which is equivalent to +<code>--toolchain=x86_64-4.9</code>.</li> + </dd> + </ul> + </dl> + </div> +</div> + + +<div class="toggle-content closed"> +<a name="9d"></a> + <p> + <a href="#" onclick="return toggleContent(this)"> <img + src="/assets/images/triangle-closed.png" class="toggle-content-img" alt="" + >Android NDK, Revision 9d</a> <em>(March 2014)</em> + </p> + <div class="toggle-content-toggleme"> + <dl> + <dt>Important changes:</dt> + <dd> + <ul> + <li>Added support for the Clang 3.4 compiler. The +<code>NDK_TOOLCHAIN_VERSION=clang</code> option now picks Clang 3.4. GCC 4.6 is +still the default compiler.</li> + <li>Added <code>APP_ABI=armeabi-v7a-hard</code>, with +additional multilib option <code>-mfloat-abi=hard</code>. These options are for +use with ARM GCC 4.6/4.8 and Clang 3.3/3.4 (which use 4.8's assembler, linker, +and libs). When using these options, note the following changes:</li> + <ul> + <li> When executing the <code>ndk-build</code> script, add the +following options for armeabi-v7a target: +<pre>TARGET_CFLAGS += -mhard-float -D_NDK_MATH_NO_SOFTFP=1 +TARGET_LDFLAGS += -Wl,--no-warn-mismatch -lm_hard</pre> +The built library is copied to <code>libs/armeabi-v7a</code>. For make to +behave as expected, you cannot specify both <code>armeabi-v7a</code> and +<code>armeabi-v7a-hard</code> as make targets (i.e., on the APP_ABI= line). +Doing so causes one of them to be ignored. Note that <code>APP_ABI=all</code> +is still equivalent to +<code>armeabi armeabi-v7a x86 mips</code>.</li> + <li>The <code>make-standalone-toolchain.sh</code> script copies +additional libaries under <code>/hard</code> directories. + Add the above <code>CFLAGS</code> and <code>LFLAGS</code> to your +makefile to enable GCC or Clang to link with + libraries in <code>/hard</code>.</li> + </ul> + <li>Added the yasm assembler, as well as <code>LOCAL_ASMFLAGS</code> +and <code>EXPORT_ASMFLAGS</code> flags for x86 +targets. The <code>ndk-build</code> script uses +<code>prebuilts/*/bin/yasm*</code> to build <code>LOCAL_SRC_FILES</code> that +have the <code>.asm</code> extension.</li> + <li>Updated MClinker to 2.6.0, which adds <code>-gc-sections</code> +support.</li> + <li>Added experimental libc++ support (upstream r201101). Use this new +feature by following these steps: + <ul> + <li>Add <code>APP_STL := c++_static</code> or <code>APP_STL := +c++_shared</code> in <code>Application.mk</code>. + You may rebuild from source via <code>LIBCXX_FORCE_REBUILD := +true</code></li> + <li>Execute <code>make-standalone-toolchain.sh --stl=libc++</code> +to create a standalone toolchain with libc++ headers/lib.</li> + </ul> + For more information, see +<code>CPLUSPLUS-SUPPORT.html</code>. +(Issue <a href="http://b.android.com/36496">36496</a>)</li> + </ul> + </dd> + <dl> + <dt>Important bug fixes:</dt> + <dd> + <ul> + <li>Fixed an uncaught throw from an unexpected +exception handler for GCC 4.6/4.8 ARM EABI. (GCC Issue <a +href="http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59392">59392</a>)</li> + <li>Fixed GCC 4.8 so that it now correctly resolves partial +specialization of a template with + a dependent, non-type template argument. (GCC Issue <a +href="http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59052">59052</a>)</li> + <li>Added more modules to prebuilt python (Issue <a +href="http://b.android.com/59902">59902</a>): + <ul> + <li>Mac OS X: <code>zlib</code>, <code>bz2</code>, +<code>_curses</code>, <code>_curses_panel</code>, <code>_hashlib</code>, +<code>_ssl</code></li> + <li>Linux: <code>zlib</code>, <code>nis</code>, +<code>crypt</code>, <code>_curses</code>, and <code>_curses_panel</code></li> + </ul> + <li>Fixed the x86 and MIPS gdbserver +<code>event_getmsg_helper</code>.</li> + <li>Fixed numerous issues in the RenderScript NDK toolchain, including +issues with compatibility across older devices and C++ reflection.</li> +<br> + </ul> + </dd> + + <dt>Other bug fixes:</dt> + <dd> + <ul> + <li>Header fixes: + <ul> + <li>Fixed a missing <code>#include <sys/types.h></code> in +<code>android/asset_manager.h</code> for Android API level 13 and higher. + (Issue <a href="http://b.android.com/64988">64988</a>)</li> + <li>Fixed a missing <code>#include <stdint.h></code> in +<code>android/rect_manager.h</code> for Android API level 14 and higher.</li> + <li>Added <code>JNICALL</code> to <code>JNI_OnLoad</code> and +<code>JNI_OnUnload</code> in <code>jni.h</code>. Note that <code>JNICALL</code> + is defined as <code>__NDK_FPABI__</code> For more information, see +<code>sys/cdefs.h</code>.</li> + <li>Updated the following headers so that they can be included +without the need to +manually include their dependencies (Issue <a +href="http://b.android.com/64679">64679</a>):</li> +<pre> +android/tts.h +EGL/eglext.h +fts.h +GLES/glext.h +GLES2/gl2ext.h +OMXAL/OpenMAXSL_Android.h +SLES/OpenSLES_Android.h +sys/prctl.h +sys/utime.h +</pre> + <li>Added <code>sys/cachectl.h</code> for all architectures. MIPS +developers can now include this header instead of writing <code>#ifdef +__mips__</code>.</li> + <li></code>Fixed <code>platforms/android-18/include/android/input.h +</code> by adding <code>__NDK_FPABI__</code> to functions taking or returning +float or double values.</li> + <li>Fixed MIPS <code>struct stat</code>, which was incorrectly set +to its 64-bit counterpart for Android API level 12 and later. This wrong +setting was a +regression introduced in release r9c.</li> + <li>Defined <code>__PTHREAD_MUTEX_INIT_VALUE</code>, +<code>__PTHREAD_RECURSIVE_MUTEX_INIT_VALUE</code>, + and <code>__PTHREAD_ERRORCHECK_MUTEX_INIT_VALUE</code> for Android API +level 9 and lower.</li> + <li>Added <code>scalbln</code>, <code>scalblnf</code>, and +<code>scalblnl</code> to x86 <code>libm.so</code> for APIs 18 and later.</li> + <li>Fixed a typo in +<code>sources/android/support/include/iconv.h</code>. + (Issue <a href="http://b.android.com/63806">63806</a>)</li> + + </ul> + </li> + <li>Fixed gabi++ <code>std::unexpected()</code> to call +<code>std::terminate()</code> so that + a user-defined <code>std::terminate()</code> handler has a chance to run. +</li> + <li>Fixed gabi++ to catch <code>std::nullptr</code>.</li> + <li>Fixed samples Teapot and MoreTeapots: + <ul> + <li>Solved a problem with Tegra 2 and 3 chips by changing specular +variables to use medium precision. Values for specular power can now be less +than 1.0. </li> + <li>Changed the samples so that pressing the volume button restores +immersive mode and invalidates +<code>SYSTEM_UI_FLAG_IMMERSIVE_STICKY</code>. Screen rotation does not +trigger <code>onSystemUiVisibilityChange</code>, and so does not restore +immersive mode.</li> + </ul> + </li> + <li>Fixed the <code>ndk-build</code> script to add +<code>-rpath-link=$SYSROOT/usr/lib</code> and +<code>-rpath-link=$TARGET_OUT</code> in order to use <code>ld.bfd</code> to +link executables. (Issue <a href="http://b.android.com/64266">64266</a>)</li> + <li>Removed <code>-Bsymbolic</code> from all STL builds.</li> + <li>Fixed <code>ndk-gdb-py.cmd</code> by setting <code>SHELL</code> as +an environment variable +instead of passing it to + <code>python.exe</code>, which ignores the setting. + (Issue <a href="http://b.android.com/63054">63054</a>)</li> + <li>Fixed the <code>make-standalone-toolchain.sh</code> script so that +the <code>--stl=stlport</code> option copies the gabi++ headers instead of +symlinking them; the <code>cmd.exe</code> and MinGW shells do not understand +symlinks created by cygwin.</li> + </ul> + </dd> + + <dt>Other changes:</dt> + <dd> + <ul> + <li>Applied execution permissions to all <code>*cmd</code> scripts +previously intended for use only in the <code>cmd.exe</code> shell, in case +developers prefer to use <code>ndk-build.cmd</code> in cygwin instead of the +recommended <code>ndk-build</code> script.</li> + <li>Improved the speed of the <code>make-standalone-toolchain.sh</code> +script by moving instead of copying if the specified destination directory does +not exist.</li> + </dd> + </ul> + </dl> + </div> +</div> + +<div class="toggle-content closed"> +<a name="9c"></a> + <p> + <a href="#" onclick="return toggleContent(this)"> <img + src="/assets/images/triangle-closed.png" class="toggle-content-img" alt="" + >Android NDK, Revision 9c</a> <em>(December 2013)</em> + </p> + <div class="toggle-content-toggleme"> +<p>This is a bug-fix-only release.</p> + <dl> + <dt>Important bug fixes:</dt> + <dd> + <ul> + <li>Fixed a problem with GCC 4.8 ARM, in which the stack pointer is +restored too early. This problem prevented the frame pointer from reliably +accessing a variable in the stack frame. (GCC Issue <a +href="http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58854">58854</a>)</li> +<li>Fixed a problem with GCC 4.8 libstdc++, in which a bug in +std::nth_element was causing generation of code that produced a random +segfault. (Issue <a +href="https://code.google.com/p/android/issues/detail?id=62910">62910</a>)</li> + <li>Fixed GCC 4.8 ICE in cc1/cc1plus with +<code>-fuse-ld=mcld</code>, so that the following error no longer occurs: +<pre>cc1: internal compiler error: in common_handle_option, at +opts.c:1774</pre></li> + <li>Fixed <code>-mhard-float</code> support for +<code>__builtin</code> math functions. For ongoing information on fixes for +<code>-mhard-float</code> with STL, please follow Issue <a +href="http://b.android.com/61784">61784</a>.</li> + </ul> + </dd> + + <dt>Other bug fixes:</dt> + <dd> + <ul> + <li>Header fixes: + <ul> + <li>Changed prototype of <code>poll</code> to <code>poll(struct +pollfd *, nfds_t, int);</code> in <code>poll.h</code>.</li> + <li>Added <code>utimensat</code> to <code>libc.so</code> for Android +API levels 12 and 19. These libraries are now included for all Android API +levels 12 through 19.</li> +<li>Introduced <code>futimens</code> into <code>libc.so</code>, for Android API +level 19.</li> +<li>Added missing <code>clock_settime()</code> and +<code>clock_nanosleep()</code> to <code>time.h</code> for Android API level 8 +and higher.</li> +<li>Added <code>CLOCK_MONOTONIC_RAW, CLOCK_REALTIME_COARSE, +CLOCK_MONOTONIC_COARSE, CLOCK_BOOTTIME, CLOCK_REALTIME_ALARM,</code> and +<code>CLOCK_BOOTTIME_ALARM</code> in <code>time.h.</code></li> +<li>Removed obsolete <code>CLOCK_REALTIME_HR</code> and +<code>CLOCK_MONOTONIC_HR.</code></li> + </ul> + </li> + <li>In samples Teapot, MoreTeapots, and +<code>source/android/ndk_helper</code>: + <ul> +<li>Changed them so that they now use a hard-float abi for armeabi-v7a.</li> +<li>Updated them to use immersive mode on Android API level 19 and +higher.</li> +<li>Fixed a problem with <code>Check_ReleaseStringUTFChars</code> in +<code>/system/lib/libdvm.so</code> that was causing crashes on x86 devices.</li> + </ul> + </li> +<li>Fixed <code>ndk-build</code> fails that happen in cygwin when the NDK +package is +referenced via symlink.</li> +<li>Fixed <code>ndk-build.cmd</code> fails that happen in windows +<code>cmd.exe</code> when +<code>LOCAL_SRC_FILES</code> contains absolute paths. (Issue <a +href="https://android-review.googlesource.com/#/c/69992">69992</a>)</li> +<li>Fixed the <code>ndk-stack</code> script to proceed even when it can't parse +a frame due to inability to find a routine, filename, or line number. In any of +these cases, it prints <code>??</code>.</li> +<li>Fixed the <code>ndk-stack</code> stack for windows-x64_64 targets so that +it no longer erroneously matches a frame line with a line in the +<code>stack:</code> section that doesn't contain <code>pc</code>, +<code>eip</code>, or <code>ip</code>. For example: +<pre>I/DEBUG ( 1151): #00 5f09db68 401f01c4 +/system/lib/libc.so</pre></li> +<li>Fixed gabi++ so that it: + <ul> + <li>Does not use malloc() to allocate C++ thread-local + objects.</li> + <li>Avoids deadlocks in gabi++ in cases where libc.debug.malloc is +non-zero in userdebug/eng Android platform builds.</li> + </ul> + </ul> + </dd> + + <dt>Other changes:</dt> + <dd> + <ul> + <li>Added <code>LOCAL_EXPORT_LDFLAGS</code>.</li> +<li>Introduced the <code>NDK_PROJECT_PATH=null</code> setting for use in an +integrated build system where options are explicitly passed to +<code>ndk-build</code>. With this setting, <code>ndk-build</code> makes no +attempt to look for <code>NDK_PROJECT_PATH.</code> This setting also prevents +variables from deriving default settings from NDK_PROJECT_PATH. As a result, +the following variables must now be explicitly specified (with their default +values if such exist): <code>NDK_OUT, NDK_LIBS_OUT, APP_BUILD_SCRIPT, +NDK_DEBUG</code> (optional, default to 0), and other <code>APP_*</code>'s +contained in <code>Application.mk</code>.</li> +<li><code>APP_ABI</code> can now be enumerated in a comma-delimited list. For +example: +<pre>APP_ABI := "armeabi,armeabi-v7a"</pre></li> +<li>Provided the ability to rebuild all of STL with debugging info in an +optional, separate package called +<code>android-ndk-r9c-cxx-stl-libs-with-debugging-info.zip</code>, using the +<code>-g</code> option. This option +helps the <code>ndk-stack</code> script provide better a stack dump across STL. +This change should not affect the code/size of the final, stripped file.</li> +<li>Enhanced <code>hello-jni</code> samples to report <code>APP_ABI</code> at +compilation.</li> +<li>Used the <code>ar</code> tool in Deterministic mode (option +<code>-D</code>) to build static libraries. (Issue <a +href="http://b.android.com/60705">60705</a>)</li> + </ul> + </dd> + + </dl> + </div> +</div> + +<div class="toggle-content closed"> +<a name="9b"></a> + <p> + <a href="#" onclick="return toggleContent(this)"> <img + src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" alt="" + >Android NDK, Revision 9b</a> <em>(October 2013)</em> + </p> + <div class="toggle-content-toggleme"> + <dl> + <dt>Important changes:</dt> + <dd> + <ul> + <li>Updated {@code include/android/*h} and {@code math.h} for all Android API levels up to + 18, including the addition of levels 13, 15, 16 and 17. + For information on added APIs, see commit messages for Changes + <a href="https://android-review.googlesource.com/68012">68012</a> and + <a href="https://android-review.googlesource.com/68014">68014</a>. + (Issues <a href="http://b.android.com/47150">47150</a>, + <a href="http://b.android.com/58528">58528</a>, and + <a href="http://b.android.com/38423">38423</a>)</li> + <li>Added support for Android API level 19, including Renderscript binding.</li> + <li>Added support for <code>-mhard-float</code> in the existing armeabi-v7a ABI. For more + information and current restrictions on Clang, see + {@code tests/device/hard-float/jni/Android.mk}.</li> + <li>Migrated from GNU Compiler Collection (GCC) 4.8 to 4.8.2, and added diagnostic color + support. To enable diagnostic colors, set <code>-fdiagnostics-color=auto</code>, + <code>-fdiagnostics-color=always,</code> or export {@code GCC_COLORS} as shown below: +<pre> +GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01' +</pre> + For more information, see + <a href="http://gcc.gnu.org/onlinedocs/gcc/Language-Independent-Options.html">GCC + Language Independent Options</a>. + </li> + <li>Added two new samples to demonstrate OpenGL ES 3.0 features: Teapot and MoreTeapots. + These samples run on devices with Android 4.1 (API level 16) and higher.</li> + <li>Deprecated GCC 4.7 and Clang 3.2 support, which will be removed in the next + release.</li> + </ul> + </dd> + + <dt>Important bug fixes:</dt> + <dd> + <ul> + <li>Fixed problem with ARM GCC 4.6 {@code thumb2} failing to generate 16-bit relative jump + tables. (<a href="http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48328">GCC Issue</a>)</li> + <li>Fixed GCC 4.8 internal compiler error (ICE) on + {@code g++.dg/cpp0x/lambda/lambda-defarg3.C}. + (<a href="https://android-review.googlesource.com/62770">Change 62770</a>, + <a href="http://gcc.gnu.org/ml/gcc/2013-07/msg00424.html">GCC Issue</a>)</li> + <li>Fixed a problem with Windows 32-bit {@code *-gdb.exe} executables failing to launch. + (<a href="http://b.android.com/58975">Issue 58975</a>)</li> + <li>Fixed GCC 4.8 ICE when building bullet library. The error message is as follows: + <pre>internal compiler error: verify_flow_info failed</pre> + (<a href="http://b.android.com/58916">Issue 58916</a>, + <a href="http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58165">GCC Issue</a>)</li> + <li>Modified GDB/ARM build to skip {@code ARM.exidx} data for unwinding in prologue code and + added a command ({@code set arm exidx-unwinding}) to control exidx-based stack unwinding. + (<a href="http://b.android.com/55826">Issue 55826</a>)</li> + <li>Fixed Clang 3.3 MIPS compiler problem where HI and LO registers are incorrectly + reused.</li> + <li>Fixed issue with MIPS 4.7 ICE in {@code dbx_reg_number}. The error message is as +follows: +<pre> +external/icu4c/i18n/decimfmt.cpp:1322:1: +internal compiler error: in dbx_reg_number, at dwarf2out.c:10185 +</pre> + (<a href="http://gcc.gnu.org/ml/gcc-patches/2012-12/msg00830.html">GCC Patch</a>) + + </li> + + </ul> + </dd> + + <dt>Other bug fixes:</dt> + <dd> + <ul> + <li>Header fixes + <ul> + <li>Fixed the ARM {@code WCHAR_MIN} and {@code WCHAR_MAX} to be unsigned according to + spec (the X86/MIPS versions are signed). Define {@code _WCHAR_IS_ALWAYS_SIGNED} to + restore old behavior. (<a href="http://b.android.com/57749">Issue 57749</a>)</li> + <li>Fixed {@code include/netinet/tcp.h} to contain {@code TCP_INFO} state enum. + (<a href="http://b.android.com/38881">Issue 38881</a>)</li> + <li>Fixed the {@code cdefs_elh.h} macro {@code _C_LABEL_STRING} to stop generating + warnings in the GCC 4.8 toolchain when using c++11 mode. + (<a href="http://b.android.com/58135">Issue 58135</a>, + <a href="http://b.android.com/58652">Issue 58652</a>)</li> + <li>Removed non-existent functions {@code imaxabs} and {@code imaxdiv} from header + {@code inttypes.h}.</li> + <li>Fixed issue with {@code pthread_exit()} return values and {@code pthread_self()}. + (<a href="http://b.android.com/60686">Issue 60686</a>)</li> + <li>Added missing {@code mkdtemp()} function, which already exists in {@code bionic} + header {@code stdlib.h}.</li> + </ul> + </li> + <li>Fixed problem building {@code samples/gles3jni} with Clang on Android API level 11.</li> + <li>Fixed MCLinker to allow multiple occurrences of the following options: + {@code -gc-sections} and {@code --eh-frame-hdr}.</li> + <li>Fixed MCLinker to accept the {@code --no-warn-mismatch} option.</li> + <li>Modified {@code cpu-features} option to not assume all VFPv4 devices support IDIV. + Now this option only adds IDIV to white-listed devices, including Nexus 4. + (<a href="http://b.android.com/57637">Issue 57637</a>)</li> + <li>Fixed problem with {@code android_native_app_glue.c} erroneously logging errors on event + predispatch operations.</li> + <li>Fixed all operations on {@code gabi++} terminate and unexpected_handler to be + thread-safe.</li> + <li>Fixed several issues with Clang <code>-integrated-as</code> option so it can pass + tests for {@code ssax-instructions} and {@code fenv}.</li> + <li>Fixed GCC 4.6/4.7/4.8 compiler to pass the linker option {@code --eh-frame-hdr} even + for static executables. For more information, see the + <a href="http://gcc.gnu.org/ml/gcc-patches/2012-09/msg00969.html">GCC patch</a>.</li> + <li>Fixed extra apostrophe in <code>CPU-ARCH-ABIS.html</code>. For more information, see + <code>NDK-DEPENDS.html</code>. (<a href="http://b.android.com/60142">Issue 60142</a>)</li> + <li>Fixed extra quotes in ndk-build output on Windows. + (<a href="http://b.android.com/60649">Issue 60649</a>)</li> + <li>Fixed Clang 3.3 to compile ARM's built-in, atomic operations such as + {@code __atomic_fetch_add}, {@code __atomic_fetch_sub}, and {@code __atomic_fetch_or}. + </li> + <li>Fixed Clang 3.3 ICE with customized {@code vfprintf}. + (<a href="http://llvm.org/bugs/show_bug.cgi?id=16344">Clang issue</a>) + </li> + </ul> + </dd> + + <dt>Other changes:</dt> + <dd> + <ul> + <li>Enabled OpenMP for all GCC builds. To use this feature, add the following flags to your + build settings: +<pre> +LOCAL_CFLAGS += -fopenmp +LOCAL_LDFLAGS += -fopenmp +</pre> + For code examples, see {@code tests/device/test-openmp}</li> + <li>Reduced the size of {@code ld.mcld} significantly (1.5MB vs. {@code ld.bfd} 3.5MB and + {@code ld.gold} 7.5MB), resulting in a speed improvement of approximately 20%.</li> + <li>Added <code>LOCAL_CONLYFLAGS</code> and <code>APP_CONLYFLAGS</code> to specify + options applicable to C only but not C++. The existing <code>LOCAL_CFLAGS</code> + and <code>APP_CFLAGS</code> are also used for C++ compilation (to save trouble of + specifying most options twice), so options such as <code>-std=gnu99</code> may fail in + g++ builds with a warning and clang++ builds with an error.</li> + <li>Added {@code gabi++} array helper functions.</li> + <li>Modified GCC builds so that all {@code libgcc.a} files are built with + <code>-funwind-tables</code> to allow the stack to be unwound past previously blocked + points, such as <code>__aeabi_idiv0</code>.</li> + <li>Added Ingenic MXU support in MIPS GCC4.6/4.7/4.8 with new <code>-mmxu</code> +option.</li> + <li>Extended MIPS GCC4.6/4.7/4.8 <code>-mldc1-sdc1</code> to control ldxc1/sdxc1 too</li> + <li>Added crazy linker. For more information, see + {@code sources/android/crazy_linker/README.TXT}.</li> + <li>Fixed {@code bitmap-plasma} to draw to full screen rather than a 200x200 pixel +area.</li> + <li>Reduced linux and darwin toolchain sizes by 25% by creating symlinks to identical files. + </li> + </ul> + </dd> + + </dl> + </div> +</div> + + +<div class="toggle-content closed"> +<a name="9"></a> + <p> + <a href="#" onclick="return toggleContent(this)"> <img + src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" alt="" + >Android NDK, Revision 9</a> <em>(July 2013)</em> + </p> + <div class="toggle-content-toggleme"> + <dl> + <dt>Important changes:</dt> + <dd> + <ul> + <li>Added support for Android 4.3 (API level 18). For more information, see + {@code STABLE-APIS.html} and new code examples in {@code samples/gles3jni/README}. + <li>Added headers and libraries for OpenGL ES 3.0, which is supported by Android 4.3 + (API level 18) and higher.</li> + <li>Added GNU Compiler Collection (GCC) 4.8 compiler to the NDK. Since GCC 4.6 is still + the default, you must explicitly enable this option: + <ul> + <li>For {@code ndk-build} builds, export {@code NDK_TOOLCHAIN_VERSION=4.8} or + add it in {@code Application.mk}.</li> + <li>For standalone builds, use the {@code --toolchain=} option in + {@code make-standalone-toolchain.sh}, for example:<br> + {@code --toolchain=arm-linux-androideabi-4.8}</li> + </ul> + <p class="note"><strong>Note:</strong> + The {@code -Wunused-local-typedefs} option is enabled by {@code -Wall}. Be + sure to add {@code __attribute__((unused))} if you use compile-time asserts like + {@code sources/cxx-stl/stlport/stlport/stl/config/features.h}, line #311. For more + information, see + <a href="https://android-review.googlesource.com/#/c/55460">Change 55460</a></p> + <p class="note"><strong>Note:</strong> + In the GCC 4.7 release and later, ARM compilers generate unaligned access code by + default for ARMv6 and higher build targets. You may need to add the + {@code -mno-unaligned-access} build option when building for kernels that do not support + this feature.</p> + </li> + <li>Added Clang 3.3 support. The {@code NDK_TOOLCHAIN_VERSION=clang} build option + now picks Clang 3.3 by default. + <p class="note"><strong>Note:</strong> + Both GCC 4.4.3 and Clang 3.1 are deprecated, and will be removed from the next NDK + release.</p></li> + <li>Updated GNU Project Debugger (GDB) to support python 2.7.5.</li> + <li>Added MCLinker to support Windows hosts. Since {@code ld.gold} + is the default where available, you must add {@code -fuse-ld=mcld} in + {@code LOCAL_LDFLAGS} or {@code APP_LDFLAGS} to enable MCLinker.</li> + <li>Added {@code ndk-depends} tool which prints ELF library dependencies. + For more information, see {@code NDK-DEPENDS.html}. + (<a href="http://b.android.com/53486">Issue 53486</a>)</li> + </ul> + </dd> + + <dt>Important bug fixes:</dt> + <dd> + <ul> + <li>Fixed potential event handling issue in {@code android_native_app_glue}. + (<a href="http://b.android.com/41755">Issue 41755</a>)</li> + <li>Fixed ARM/GCC-4.7 build to generate sufficient alignment for NEON load and store + instructions VST and VLD. + (<a href="http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57271">GCC Issue 57271</a>)</li> + <li>Fixed a GCC 4.4.3/4.6/4.7 internal compiler error (ICE) for a constant negative index + value on a string literal. + (<a href="http://b.android.com/54623">Issue 54623</a>)</li> + <li>Fixed GCC 4.7 segmentation fault for constant initialization with an object address. + (<a href="http://b.android.com/56508">Issue 56508</a>)</li> + <li>Fixed GCC 4.6 ARM segmentation fault for <code>-O</code> values when using Boost + 1.52.0. (<a href="http://b.android.com/42891">Issue 42891</a>) + <li>Fixed {@code libc.so} and {@code libc.a} to support the {@code wait4()} function. + (<a href="http://b.android.com/19854">Issue 19854</a>)</li> + <li>Updated the x86 libc.so and libc.a files to include the {@code clone()} + function.</li> + <li>Fixed {@code LOCAL_SHORT_COMMANDS} bug where the {@code linker.list} file is + empty or not used.</li> + <li>Fixed GCC MIPS build on Mac OS to use CFI directives, without which + {@code ld.mcld --eh-frame-hdr} fails frequently.</li> + <li>Fixed Clang 3.2 X86/MIPS internal compiler error in {@code llvm/lib/VMCore/Value.cpp}. + (<a href="https://android-review.googlesource.com/#/c/59021">Change 59021</a>)</li> + <li>Fixed GCC 4.7 64-bit Windows assembler crash. (Error: {@code out of memory allocating + 4294967280 bytes}).</li> + <li>Updated {@code ndk-gdb} script so that the {@code --start} or {@code --launch} actions + now wait for the GNU Debug Server, so that it can more reliably hit breakpoints set + early in the execution path (such as breakpoints in JNI code). + (<a href="http://b.android.com/41278">Issue 41278</a>) + <p class="note"><strong>Note:</strong> + This feature requires jdb and produces warning about pending breakpoints. + Specify the {@code --nowait} option to restore previous behavior. + </p> + </li> + <li>Fixed GDB crash when library list is empty.</li> + <li>Fixed GDB crash when using a {@code stepi} command past a {@code bx pc} or + {@code blx pc} Thumb instruction. + (<a href="http://b.android.com/56962">Issue 56962</a>, + <a href="http://b.android.com/36149">Issue 36149</a>)</li> + <li>Fixed MIPS {@code gdbserver} to look for {@code DT_MIPS_RLD_MAP} instead of + {@code DT_DEBUG}. (<a href="http://b.android.com/56586">Issue 56586</a>)</li> + <li>Fixed a circular dependency in the ndk-build script, for example: If A->B and + B->B, then B was dropped from build. + (<a href="http://b.android.com/56690">Issue 56690</a>)</li> + </ul> + </dd> + + <dt>Other bug fixes:</dt> + <dd> + <ul> + <li>Fixed the {@code ndk-build} script to enable you to specify a version of Clang as a + command line option (e.g., {@code NDK_TOOLCHAIN_VERSION=clang3.2}). Previously, only + specifying the version as an environment variable worked.</li> + <li>Fixed gabi++ size of {@code _Unwind_Exception} to be 24 for MIPS build targets when + using the Clang compiler. + (<a href="https://android-review.googlesource.com/#/c/54141">Change 54141</a>)</li> + <li>Fixed the {@code ndk-build} script to ensure that built libraries are actually + removed from projects that include prebuilt static libraries when using the + {@code ndk-build clean} command. + (<a href="https://android-review.googlesource.com/#/c/54461">Change 54461</a>, + <a href="https://android-review.googlesource.com/#/c/54480">Change 54480</a>)</li> + <li>Modified the {@code NDK_ANALYZE=1} option to be less verbose.</li> + <li>Fixed {@code gnu-libstdc++/Android.mk} to include a {@code backward/} path for builds + that use backward compability. + (<a href="http://b.android.com/53404">Issue 53404</a>)</li> + <li>Fixed a problem where {@code stlport new} sometimes returned random values.</li> + <li>Fixed {@code ndk-gdb} to match the order of {@code CPU_ABIS}, not {@code APP_ABIS}. + (<a href="http://b.android.com/54033">Issue 54033</a>)</li> + <li>Fixed a problem where the NDK 64-bit build on MacOSX choses the wrong path for + compiler. + (<a href="http://b.android.com/53769">Issue 53769</a>)</li> + <li>Fixed build scripts to detect 64-bit Windows Vista. + (<a href="http://b.android.com/54485">Issue 54485</a>)</li> + <li>Fixed x86 {@code ntonl/swap32} error: {@code invalid 'asm': operand number + out of range}. + (<a href="http://b.android.com/54465">Issue 54465</a>, + <a href="https://android-review.googlesource.com/#/c/57242">Change 57242</a>)</li> + <li>Fixed {@code ld.gold} to merge string literals.</li> + <li>Fixed {@code ld.gold} to handle large symbol alignment.</li> + <li>Updated {@code ld.gold} to enable the {@code --sort-section=name} option.</li> + <li>Fixed GCC 4.4.3/4.6/4.7 to suppress the {@code -export-dynamic} option for + statically linked programs. GCC no longer adds an {@code .interp} section for statically + linked programs.</li> + <li>Fixed GCC 4.4.3 {@code stlport} compilation error about inconsistent {@code typedef} + of {@code _Unwind_Control_Block}. + (<a href="http://b.android.com/54426">Issue 54426</a>)</li> + <li>Fixed {@code awk} scripts to handle {@code AndroidManifest.xml} files created on + Windows which may contain trailing {@code \r} characters and cause build errors. + (<a href="http://b.android.com/42548">Issue 42548</a>)</li> + <li>Fixed {@code make-standalone-toolchain.sh} to probe the {@code prebuilts/} + directory to detect if the host is 32 bit or 64 bit.</li> + <li>Fixed the Clang 3.2 {@code -integrated-as} option.</li> + <li>Fixed the Clang 3.2 ARM EHABI compact model {@code pr1} and {@code pr2} handler data. + </li> + <li>Added Clang {@code -mllvm -arm-enable-ehabi} option to fix the following Clang error: + <pre>clang: for the -arm-enable-ehabi option: may only occur zero or one times!</pre> + </li> + <li>Fixed build failure when there is no {@code uses-sdk} element in application + manifest. (<a href="http://b.android.com/57015">Issue 57015</a>)</li> + </ul> + + </dd> + <dt>Other changes:</dt> + <dd> + <ul> + <li>Header Fixes + <ul> + <li>Modified headers to make {@code __set_errno} an inlined function, since + {@code __set_errno} in {@code errno.h} is deprecated, and {@code libc.so} no longer + exports it.</li> + <li>Modified {@code elf.h} to include {@code stdint.h}. + (<a href="http://b.android.com/55443">Issue 55443</a>)</li> + <li>Fixed {@code sys/un.h} to be included independently of other headers. + (<a href="http://b.android.com/53646">Issue 53646</a>)</li> + <li>Fixed all of the {@code MotionEvent_getHistorical} API family to take the + {@code const AInputEvent* motion_event}. + (<a href="http://b.android.com/55873">Issue 55873</a>)</li> + <li>Fixed {@code malloc_usable_size} to take {@code const void*}. + (<a href="http://b.android.com/55725">Issue 55725</a>)</li> + <li>Fixed stdint.h to be more compatible with C99. + (<a href="https://android-review.googlesource.com/#/c/46821">Change 46821</a>)</li> + <li>Modified {@code wchar.h} to not redefine {@code WCHAR_MAX} and + {@code WCHAR_MIN}</li> + <li>Fixed {@code <inttypes.h>} declaration for pointer-related {@code PRI} and + {@code SCN} macros. (<a href="http://b.android.com/57218">Issue 57218</a>)</li> + <li>Changed the {@code sys/cdefs.h} header so that {@code __WCHAR_TYPE__} is 32-bit + for API levels less than 9, which means that {@code wchat_t} is 32-bit for all + API levels. To restore the previous behavior, define the {@code _WCHAR_IS_8BIT} + boolean variable. (<a href="http://b.android.com/57267">Issue 57267</a>)</li> + </ul> + </li> + <li>Added more formatting in NDK {@code docs/} and miscellaneous documentation fixes. + </li> + <li>Added support for a thin archive technique when building static libraries. + (<a href="http://b.android.com/40303">Issue 40303</a>)</li> + <li>Updated script {@code make-standalone-toolchain.sh} to support the {@code stlport} + library in addition to {@code gnustl}, when you specify the option + {@code --stl=stlport}. For more information, see {@code STANDALONE-TOOLCHAIN.html}.</li> + <li>Updated the {@code make-standalone-toolchain.sh} script so that the + {@code --llvm-version=} option creates the {@code $TOOLCHAIN_PREFIX-clang} and + {@code $TOOLCHAIN_PREFIX-clang++} scripts in addition to {@code clang} and + {@code clang++}, to avoid using the host's clang and clang++ definitions by accident. + </li> + <li>Added two flags to re-enable two optimizations in upstream Clang but disabled in + NDK for better compatibility with code compiled by GCC: + <ul> + <li>Added a {@code -fcxx-missing-return-semantics} flag to re-enable <em>missing +return + semantics</em> in Clang 3.2+. Normally, all paths should terminate with a return + statement for a value-returning function. If this is not the case, clang inserts + an undefined instruction (or trap in debug mode) at the path without a return + statement. If you are sure your code is correct, use this flag to allow the + optimizer to take advantage of the undefined behavior. If you are not sure, do not + use this flag. The caller may still receive a random incorrect value, but the + optimizer will not exploit it and make your code harder to debug.</li> + <li>Added a {@code -fglobal-ctor-const-promotion} flag to re-enable + promoting global variables with static constructor to be constants. With this flag, + the global variable optimization pass of LLVM tries to evaluate the global + variables with static constructors and promote them to global constants. Although + this optimization is correct, it may cause some incompatability with code compiled + by GCC. For example, code may do {@code const_cast} to cast the constant to mutable + and modify it. In GCC, the variable is in read-write and the code is run by + accident. In Clang, the const variable is in read-only memory and may cause your + application to crash.</li> + </ul> + </li> + <li>Added {@code -mldc1-sdc1} to the MIPS GCC and Clang compilers. By default, compilers + align 8-byte objects properly and emit the {@code ldc1} and {@code sdc1} instructions + to move them around. If your app uses a custom allocator that does not always align + with a new object's 8-byte boundary in the same way as the default allocator, your app + may crash due to {@code ldc1} and {@code sdc1} operations on unaligned memory. In this + case, use the {@code -mno-ldc1-sdc1} flag to workaround the problem.</li> + <li>Downgraded the event severity from warning to info if {@code APP_PLATFORM_LEVEL} is + larger than {@code APP_MIN_PLATFORM_LEVEL}. The {@code APP_PLATFORM_LEVEL} may be lower + than {@code APP_PLATFORM} in {@code jni/Application.mk} because the NDK does not have + headers for all levels. In this case, the actual level is shifted downwards. The + {@code APP_MIN_PLATFORM_LEVEL} is specified by the {@code android:minSdkVersion} in + your application's manifest. + (<a href="http://b.android.com/39752">Issue 39752</a>)</li> + <li>Added the {@code android_getCpuIdArm()} and {@code android_setCpuArm()} methods to + {@code cpu-features.c}. This addition enables easier retrieval of the ARM CPUID + information. (<a href="http://b.android.com/53689">Issue 53689</a>)</li> + <li>Modified {@code ndk-build} to use GCC 4.7's {@code as/ld} for Clang compiling. + <p class="note"><strong>Note:</strong> + In GCC 4.7, {@code monotonic_clock} and {@code is_monotonic} have been renamed to + {@code steady_clock} and {@code is_steady}, respectively.</p></li> + <li>Added the following new warnings to the {@code ndk-build} script: + <ul> + <li>Added warnings if {@code LOCAL_LDLIBS/LDFLAGS} are used in static library + modules.</li> + <li>Added a warning if a configuration has no module to build.</li> + <li>Added a warning for non-system libraries being used in + {@code LOCAL_LDLIBS/LDFLAGS} of a shared library or executable modules.</li> + </ul> + </li> + <li>Updated build scripts, so that if {@code APP_MODULES} is not defined and only static + libraries are listed in {@code Android.mk}, the script force-builds all of them. + (<a href="http://b.android.com/53502">Issue 53502</a>)</li> + <li>Updated {@code ndk-build} to support absolute paths in {@code LOCAL_SRC_FILES}.</li> + <li>Removed the {@code *-gdbtui} executables, which are duplicates of the {@code *-gdb} + executables with the {@code -tui} option enabled.</li> + <li>Updated the build scripts to warn you when the Edison Design Group (EDG) compiler + front-end turns {@code _STLP_HAS_INCLUDE_NEXT} back on. + (<a href="http://b.android.com/53646">Issue 53646</a>)</li> + <li>Added the environment variable {@code NDK_LIBS_OUT} to allow overriding of the + path for {@code libraries/gdbserver} from the default {@code $PROJECT/libs}. + For more information, see {@code OVERVIEW.html}.</li> + <li>Changed ndk-build script defaults to compile code with format string protection + {@code -Wformat -Werror=format-security}. You may set + {@code LOCAL_DISABLE_FORMAT_STRING_CHECKS=true} to disable it. + For more information, see {@code ANDROID-MK.html}</li> + <li>Added STL pretty-print support in {@code ndk-gdb-py}. For more information, see + {@code NDK-GDB.html}.</li> + <li>Added tests based on the googletest frameworks.</li> + <li>Added a notification to the toolchain build script that warns you if the current shell + is not {@code bash}.</li> + </ul> + </dd> + </dl> + </div> +</div> + + +<div class="toggle-content closed"> +<a name="lower"></a> + <p><a href="#" onclick="return toggleContent(this)"> + <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" + alt="">Android NDK, Revision 8e</a> <em>(March 2013)</em> + </p> + + <div class="toggle-content-toggleme"> + <dl> + <dt>Important changes:</dt> + <dd> + <ul> + <li>Added 64-bit host toolchain set (package name suffix {@code *-x86_64.*}). For more + information, see {@code CHANGES.HTML} and {@code NDK-BUILD.html}.</li> + <li>Added Clang 3.2 compiler. GCC 4.6 is still the default. For information on using the + Clang compiler, see {@code CHANGES.HTML}.</li> + <li>Added static code analyzer for Linux/MacOSX hosts. For information on using the + analyzer, see {@code CHANGES.HTML}.</li> + <li>Added MCLinker for Linux/MacOSX hosts as an experimental feature. The {@code ld.gold} + linker is the default where available, so you must explicitly enable it. For more + information, see {@code CHANGES.HTML}.</li> + <li>Updated ndk-build to use topological sort for module dependencies, which means the + build automatically sorts out the order of libraries specified in + {@code LOCAL_STATIC_LIBRARIES}, {@code LOCAL_WHOLE_STATIC_LIBRARIES} and + {@code LOCAL_SHARED_LIBRARIES}. For more information, see {@code CHANGES.HTML}. + (<a href="http://b.android.com/39378">Issue 39378</a>)</li> + </ul> + </dd> + + <dt>Important bug fixes:</dt> + <dd> + <ul> + <li>Fixed build script to build all toolchains in {@code -O2}. Toolchains in previous + releases were incorrectly built without optimization.</li> + <li>Fixed build script which unconditionally builds Clang/llvm for MacOSX in 64-bit.</li> + <li>Fixed GCC 4.6/4.7 internal compiler error: + {@code gen_thumb_movhi_clobber at config/arm/arm.md:5832}. + (<a href="http://b.android.com/52732">Issue 52732</a>)</li> + <li>Fixed build problem where GCC/ARM 4.6/4.7 fails to link code using 64-bit atomic + built-in functions. + (<a href="http://b.android.com/41297">Issue 41297</a>)</li> + <li>Fixed GCC 4.7 linker DIV usage mismatch errors. + (<a href="http://sourceware.org/ml/binutils/2012-12/msg00202.html">Sourceware Issue</a>) + <li>Fixed GCC 4.7 internal compiler error {@code build_data_member_initialization, at + cp/semantics.c:5790}.</li> + <li>Fixed GCC 4.7 internal compiler error {@code redirect_eh_edge_1, at tree-eh.c:2214}. + (<a href="http://b.android.com/52909">Issue 52909</a>)</li> + <li>Fixed a GCC 4.7 segfault. + (<a href="http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55245">GCC Issue</a>)</li> + <li>Fixed {@code <chrono>} clock resolution and enabled {@code steady_clock}. + (<a href="http://b.android.com/39680">Issue 39680</a>)</li> + <li>Fixed toolchain to enable {@code _GLIBCXX_HAS_GTHREADS} for GCC 4.7 libstdc++. + (<a href="http://b.android.com/41770">Issue 41770</a>, + <a href="http://b.android.com/41859">Issue 41859</a>)</li> + <li>Fixed problem with the X86 MXX/SSE code failing to link due to missing + {@code posix_memalign}. + (<a href="https://android-review.googlesource.com/#/c/51872">Change 51872</a>)</li> + <li>Fixed GCC4.7/X86 segmentation fault in {@code i386.c}, function + {@code distance_non_agu_define_in_bb()}. + (<a href="https://android-review.googlesource.com/#/c/50383">Change 50383</a>)</li> + <li>Fixed GCC4.7/X86 to restore earlier {@code cmov} behavior. + (<a href="http://gcc.gnu.org/viewcvs?view=revision&revision=193554">GCC Issue</a>)</li> + <li>Fixed handling NULL return value of {@code setlocale()} in libstdc++/GCC4.7. + (<a href="http://b.android.com/46718">Issue 46718</a>) + <li>Fixed {@code ld.gold} runtime undefined reference to {@code __exidx_start} and + {@code __exidx_start_end}. + (<a href="https://android-review.googlesource.com/#/c/52134">Change 52134</a>)</li> + <li>Fixed Clang 3.1 internal compiler error when using Eigen library. + (<a href="http://b.android.com/41246">Issue 41246</a>)</li> + <li>Fixed Clang 3.1 internal compiler error including {@code <chrono>} in C++11 +mode. + (<a href="http://b.android.com/39600">Issue 39600</a>)</li> + <li>Fixed Clang 3.1 internal compiler error when generating object code for a method + call to a uniform initialized {@code rvalue}. + (<a href="http://b.android.com/41387">Issue 41387</a>)</li> + <li>Fixed Clang 3.1/X86 stack realignment. + (<a href="https://android-review.googlesource.com/#/c/52154">Change 52154</a>)</li> + <li>Fixed problem with GNU Debugger (GDB) SIGILL when debugging on Android 4.1.2. + (<a href="http://b.android.com/40941">Issue 40941</a>)</li> + <li>Fixed problem where GDB cannot set {@code source:line} breakpoints when symbols +contain + long, indirect file paths. + (<a href="http://b.android.com/42448">Issue 42448</a>)</li> + <li>Fixed GDB {@code read_program_header} for MIPS PIE executables. + (<a href="https://android-review.googlesource.com/#/c/49592">Change 49592</a>)</li> + <li>Fixed {@code STLport} segmentation fault in {@code uncaught_exception()}. + (<a href="https://android-review.googlesource.com/#/c/50236">Change 50236</a>)</li> + <li>Fixed {@code STLport} bus error in exception handling due to unaligned access of + {@code DW_EH_PE_udata2}, {@code DW_EH_PE_udata4}, and {@code DW_EH_PE_udata8}.</li> + <li>Fixed Gabi++ infinite recursion problem with {@code nothrow new[]} operator. + (<a href="http://b.android.com/52833">Issue 52833</a>)</li> + <li>Fixed Gabi++ wrong offset to exception handler pointer. + (<a href="https://android-review.googlesource.com/#/c/53446">Change 53446</a>)</li> + <li>Removed Gabi++ redundant free on exception object + (<a href="https://android-review.googlesource.com/#/c/53447">Change 53447</a>)</li> + </ul> + </dd> + + <dt>Other bug fixes:</dt> + <dd> + <ul> + <li>Fixed NDK headers: + <ul> + <li>Removed redundant definitions of {@code size_t}, {@code ssize_t}, and + {@code ptrdiff_t}.</li> + <li>Fixed MIPS and ARM {@code fenv.h} header.</li> + <li>Fixed {@code stddef.h} to not redefine {@code offsetof} since it already exists + in the toolchain.</li> + <li>Fixed {@code elf.h} to contain {@code Elf32_auxv_t} and {@code Elf64_auxv_t}. + (<a href="http://b.android.com/38441">Issue 38441</a>) + </li> + <li>Fixed the {@code #ifdef} C++ definitions in the + {@code OpenSLES_AndroidConfiguration.h} header file. + (<a href="http://b.android.com/53163">Issue 53163</a>) + </li> + </ul> + </li> + <li>Fixed {@code STLport} to abort after out of memory error instead of silently exiting. + </li> + <li>Fixed system and Gabi++ headers to be able to compile with API level 8 and lower.</li> + <li>Fixed {@code cpufeatures} to not parse {@code /proc/self/auxv}. + (<a href="http://b.android.com/43055">Issue 43055</a>)</li> + <li>Fixed {@code ld.gold} to not depend on host libstdc++ and on Windows platforms, + to not depend on the {@code libgcc_sjlj_1.dll} library.</li> + <li>Fixed Clang 3.1 which emits inconsistent register list in {@code .vsave} and fails + assembler. + (<a href="https://android-review.googlesource.com/#/c/49930">Change 49930</a>)</li> + <li>Fixed Clang 3.1 to be able to compile libgabi++ and pass the {@code test-stlport} + tests for MIPS build targets. + (<a href="https://android-review.googlesource.com/#/c/51961">Change 51961</a>)</li> + <li>Fixed Clang 3.1 to only enable exception by default for C++, not for C.</li> + <li>Fixed several issues in Clang 3.1 to pass most GNU exception tests.</li> + <li>Fixed scripts {@code clang} and {@code clang++} in standalone NDK compiler to detect + {@code -cc1} and to not specify {@code -target} when found.</li> + <li>Fixed {@code ndk-build} to observe {@code NDK_APP_OUT} set in {@code Application.mk}. + </li> + <li>Fixed X86 {@code libc.so} and {@code lib.a} which were missing the {@code sigsetjmp} + and {@code siglongjmp} functions already declared in {@code setjmp.h}. + (<a href="http://b.android.com/19851">Issue 19851</a>)</li> + <li>Patched GCC 4.4.3/4.6/4.7 libstdc++ to work with Clang in C++ 11. + (<a href="http://clang.llvm.org/cxx_status.html">Clang Issue</a>)</li> + <li>Fixed cygwin path in argument passed to {@code HOST_AWK}.</li> + <li>Fixed {@code ndk-build} script warning in windows when running from project's JNI + directory. + (<a href="http://b.android.com/40192">Issue 40192</a>)</li> + <li>Fixed problem where the {@code ndk-build} script does not build if makefile has + trailing whitespace in the {@code LOCAL_PATH} definition. + (<a href="http://b.android.com/42841">Issue 42841</a>)</li> + </ul> + </dd> + + <dt>Other changes:</dt> + <dd> + <ul> + <li>Enabled threading support in GCC/MIPS toolchain.</li> + <li>Updated GCC exception handling helpers {@code __cxa_begin_cleanup} and + {@code __cxa_type_match} to have <em>default</em> visibility from the previous + <em>hidden</em> visibility in GNU libstdc++. For more information, see + {@code CHANGES.HTML}.</li> + <li>Updated build scripts so that Gabi++ and STLport static libraries are now built with + hidden visibility except for exception handling helpers.</li> + <li>Updated build so that {@code STLport} is built for ARM in Thumb mode.</li> + <li>Added support for {@code std::set_new_handler} in Gabi++. + (<a href="http://b.android.com/52805">Issue 52805</a>)</li> + <li>Enabled {@code FUTEX} system call in GNU libstdc++.</li> + <li>Updated {@code ndk-build} so that it no longer copies prebuilt static library to + a project's {@code obj/local/<abi>/} directory. + (<a href="http://b.android.com/40302">Issue 40302</a>)</li> + <li>Removed {@code __ARM_ARCH_5*__} from ARM {@code toolchains/*/setup.mk} script. + (<a href="http://b.android.com/21132">Issue 21132</a>)</li> + <li>Built additional GNU libstdc++ libraries in thumb for ARM.</li> + <li>Enabled MIPS floating-point {@code madd/msub/nmadd/nmsub/recip/rsqrt} + instructions with 32-bit FPU.</li> + <li>Enabled graphite loop optimizer in GCC 4.6 and 4.7 to allow more optimizations: + {@code -fgraphite}, {@code -fgraphite-identity}, {@code -floop-block}, {@code +-floop-flatten}, + {@code -floop-interchange}, {@code -floop-strip-mine}, {@code -floop-parallelize-all}, + and {@code -ftree-loop-linear}. + (<a href="http://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html">info</a>)</li> + <li>Enabled {@code polly} for Clang 3.1 on Linux and Max OS X 32-bit hosts which analyzes + and optimizes memory access. (<a href="http://polly.llvm.org">info</a>)</li> + <li>Enabled {@code -flto} in GCC 4.7, 4.6, Clang 3.2 and Clang 3.1 on linux (Clang LTO + via LLVMgold.so). MIPS compiler targets are not supported because {@code ld.gold} + is not available.</li> + <li>Enabled {@code --plugin} and {@code --plugin-opt} for {@code ld.gold} in GCC 4.6/4.7. + </li> + <li>Enabled {@code --text-reorder} for {@code ld.gold} in GCC 4.7.</li> + <li>Configured GNU libstdc++ with {@code _GLIBCXX_USE_C99_MATH} which undefines the + {@code isinf} script in the bionic header. For more information, see + {@code CHANGES.html}.</li> + <li>Added {@code APP_LDFLAGS} to the build scripts. For more information, see + {@code ANDROID-MK.html}.</li> + <li>Updated build scripts to allow {@code NDK_LOG=0} to disable the {@code NDK_LOG}.</li> + <li>Updated build scripts to allow {@code NDK_HOST_32BIT=0} to disable the host developer + environment 32-bit toolchain.</li> + <li>Changed the default GCC/X86 flags {@code -march=} and {@code -mtune=} from + {@code pentiumpro} and {@code generic} to {@code i686} and {@code atom}.</li> + <li>Enhanced toolchain build scripts: + <ul> + <li>Fixed a race condition in {@code build-gcc.sh} for the {@code mingw} build type + which was preventing a significant amount of parallel build processing.</li> + <li>Updated {@code build-gabi++.sh} and {@code build-stlport.sh} so they can now run + from the NDK package. + (<a href="http://b.android.com/52835">Issue 52835</a>) + </li> + <li>Fixed {@code run-tests.sh} in the {@code MSys} utilities collection.</li> + <li>Improved 64-bit host toolchain and Canadian Cross build support.</li> + <li>Updated {@code build-mingw64-toolchain.sh} script to more recent version.</li> + <li>Added option to build {@code libgnustl_static.a} and {@code stlport_static.a} + without hidden visibility.</li> + </ul> + </li> + </ul> + + </dd> + </dl> + </div> +</div> + + +<div class="toggle-content closed"> + <p><a href="#" onclick="return toggleContent(this)"> + <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" + alt="">Android NDK, Revision 8d</a> <em>(December 2012)</em> + </p> + + <div class="toggle-content-toggleme"> + <dl> + <dt>Important changes:</dt> + <dd> + <ul> + <li>Added the GNU Compiler Collection (GCC) 4.7 compiler to the NDK. The GCC 4.6 compiler + is still the default, so you must to explicitly enable the new version as follows: + <ul> + <li>For {@code ndk-build}, export the {@code NDK_TOOLCHAIN_VERSION=4.7} variable + <em>or</em> add it to {@code Application.mk}.</li> + <li>For standalone builds, add the {@code --toolchain=} option to + {@code make-standalone-toolchain.sh}, for example: + <pre>--toolchain=arm-linux-androideabi-4.7</pre></li> + </ul> + <p class="note"> + <strong>Note:</strong> This feature is experimental. Please try it and + <a href="http://code.google.com/p/android/issues/list">report any issues</a>.</p> + </li> + <li>Added {@code stlport} exception support via gabi++. Note that the new gabi++ + depends on {@code dlopen} and related code, meaning that: + <ul> + <li>You can no longer build a <em>static</em> executable using the {@code -static} + option or include {@code libstlport_static.a} using + {@code APP_STL := stlport_static}. (You can still use the {@code -static} option + with a standalone toolchain.) Compiling a <em>dynamic</em> executable using + {@code include $(BUILD_EXECUTABLE)} continues to work because the compiler + automatically adds the {@code -ldl} option.</li> + <li>If your project links using {@code -nostdlib} and {-Wl,--no-undefined}, you + must manually include the {@code -ldl} option.</li> + </ul> + For more information, see {@code CPLUSPLUS-SUPPORT.html}. + + <p class="note"> + <strong>Note:</strong> This feature is experimental and works better with the GCC + 4.6/4.7 compilers than with GCC 4.4.3 or Clang 3.1. Please try it and + <a href="http://code.google.com/p/android/issues/list">report any issues</a>.</p> + </li> + <li>Added a {@code -mstack-protector-guard=} option for x86 to choose between a + <em>global</em> default path which is compatible with older Android C library (bionic) + and a new <em>tls</em> path (%gs:20) for {@code -fstack-protector}, + {@code -fstack-protector-all} and {@code -fstack-protector-strong} using the GCC 4.6 + and higher compilers. + + <p class="note"> + <strong>Note:</strong> The {@code -mstack-protector-guard} setting itself does not + enable any {@code -fstack-protector*} options.</p> + </li> + <li>Added {@code android_setCpu()} function to + {@code sources/android/cpufeatures/cpu-features.c} for use when auto-detection via + {@code /proc} is not possible in Android 4.1 and higher. + (<a href="http://code.google.com/p/chromium/issues/detail?id=164154">Chromium Issue + 164154</a>)</li> + </ul> + </dd> + + <dt>Important bug fixes:</dt> + <dd> + <ul> + <li>Fixed unnecessary rebuild of object files when using the {@code ndk-build} script. + (<a href="http://b.android.com/39810">Issue 39810</a>)</li> + <li>Fixed a linker failure with the NDK 8c release for Mac OS X 10.6.x that produced the + following error: + <pre> +dyld: lazy symbol binding failed: Symbol not found: _memmem +Referenced from: ...../arm-linux-androideabi/bin/ld +Expected in: /usr/lib/libSystem.B.dylib</pre> + This problem was caused by building on Mac OS X 10.7, which produced binaries that were + not compatible with Mac OS 10.6.x and the NDK. + </li> + <li>Removed the {@code -x c++} options from the Clang++ standalone build script. + (<a href="http://b.android.com/39089">Issue 39089</a>)</li> + <li>Fixed issues using the {@code NDK_TOOLCHAIN_VERSION=clang3.1} option in Cygwin. + (<a href="http://b.android.com/39585">Issue 39585</a>)</li> + <li>Fixed the {@code make-standalone-toolchain.sh} script to allow generation of a + standalone toolchain using the Cygwin or MinGW environments. The resulting toolchain + can be used in Cygwin, MingGW or CMD.exe environments. + (<a href="http://b.android.com/39915">Issue 39915</a>, + <a href="http://b.android.com/39585">Issue 39585</a>)</li> + <li>Added missing {@code SL_IID_ANDROIDBUFFERQUEUESOURCE} option in android-14 builds for + ARM and X86. + (<a href="http://b.android.com/40625">Issue 40625</a>)</li> + <li>Fixed x86 CPU detection for the {@code ANDROID_CPU_X86_FEATURE_MOVBE} feature. + (<a href="http://b.android.com/39317">Issue 39317</a>)</li> + <li>Fixed an issue preventing the Standard Template Library (STL) from using C++ + sources that do not have a {@code .cpp} file extension.</li> + <li>Fixed GCC 4.6 ARM internal compiler error <em>at reload1.c:1061</em>. + (<a href="http://b.android.com/20862">Issue 20862</a>)</li> + <li>Fixed GCC 4.4.3 ARM internal compiler error <em>at emit-rtl.c:1954</em>. + (<a href="http://b.android.com/22336">Issue 22336</a>)</li> + <li>Fixed GCC 4.4.3 ARM internal compiler error <em>at postreload.c:396</em>. + (<a href="http://b.android.com/22345">Issue 22345</a>)</li> + <li>Fixed problem with GCC 4.6/4.7 skipping lambda functions. + (<a href="http://b.android.com/35933">Issue 35933</a>)</li> + </ul> + </dd> + + <dt>Other bug fixes:</dt> + <dd> + <ul> + <li>NDK header file fixes: + <ul> + <li>Fixed {@code __WINT_TYPE__} and {@code wint_t} to be the same type.</li> + <li>Corrected typo in {@code android/bitmap.h}. + (<a href="http://b.android.com/15134">Issue 15134</a>) + </li> + <li>Corrected typo in {@code errno.h}.</li> + <li>Added check for the presence of {@code __STDC_VERSION__} in {@code sys/cdefs.h}. + (<a href="http://b.android.com/14627">Issue 14627</a>) + </li> + <li>Reorganized headers in {@code byteswap.h} and {@code dirent.h}.</li> + <li>Fixed {@code limits.h} to include {@code page.h} which provides {@code PAGE_SIZE} + settings. + (<a href="http://b.android.com/39983">Issue 39983</a>) + </li> + <li>Fixed return type of {@code glGetAttribLocation()} and + {@code glGetUniformLocation()} from {@code int} to {@code GLint}.</li> + <li>Fixed {@code __BYTE_ORDER} constant for x86 builds. + (<a href="http://b.android.com/39824">Issue 39824</a>) + </li> + </ul> + </li> + <li>Fixed {@code ndk-build} script to not overwrite {@code -Os} with {@code -O2} for ARM + builds.</li> + <li>Fixed build scripts to allow overwriting of {@code HOST_AWK}, {@code HOST_SED}, and + {@code HOST_MAKE} settings.</li> + <li>Fixed issue for {@code ld.gold} on {@code fsck_msdos} builds linking objects built by + the Intel C/C++ compiler (ICC).</li> + <li>Fixed ARM EHABI support in Clang to conform to specifications.</li> + <li>Fixed GNU Debugger (GDB) to shorten the time spent on walking the target's link map + during {@code solib} events. + (<a href="http://b.android.com/38402">Issue 38402</a>)</li> + <li>Fixed missing {@code libgcc.a} file when linking shared libraries.</li> + </ul> + </dd> + + <dt>Other changes:</dt> + <dd> + <ul> + <li>Backported 64-bit built-in atomic functions for ARM to GCC 4.6.</li> + <li>Added documentation for audio output latency, along with other documentation and + fixes.</li> + <li>Fixed debug builds with Clang so that non-void functions now raise a {@code SIGILL} + signal for paths without a return statement.</li> + <li>Updated {@code make-standalone-toolchain.sh} to accept the suffix {@code -clang3.1} + which is equivalent to adding {@code --llvm-version=3.1} to the GCC 4.6 toolchain.</li> + <li>Updated GCC and Clang bug report URL to: + <a +href="http://source.android.com/source/report-bugs.html">http://source.android.com/source/report-bug +s.html</a></li> + <li>Added ARM ELF support to {@code llvm-objdump}.</li> + <li>Suppressed <em>treating c input as c++</em> warning for Clang builds.</li> + <li>Updated build so that only the 32-bit version of {@code libiberty.a} is built and + placed in {@code lib32/}.</li> + </ul> + </dd> + </dl> + </div> +</div> + + +<div class="toggle-content closed"> + <p><a href="#" onclick="return toggleContent(this)"> + <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" + alt="">Android NDK, Revision 8c</a> <em>(November 2012)</em> + </p> + + <div class="toggle-content-toggleme"> + <dl> + <dt>Important changes:</dt> + + <dd> + <ul> + <li>Added the Clang 3.1 compiler to the NDK. The GNU Compiler Collection (GCC) 4.6 is + still the default, so you must explicitly enable the Clang compiler option as follows: + <ul> + <li>For {@code ndk-build}, export {@code NDK_TOOLCHAIN_VERSION=clang3.1} <em>or</em> + add this environment variable setting to {@code Application.mk}.</li> + <li>For standalone builds, add {@code --llvm-version=3.1} to + {@code make-standalone-toolchain.sh} and replace {@code CC} and {@code CXX} in your + makefile with {@code <tool-path>/bin/clang} and + {@code <tool-path>/bin/clang++}. See {@code STANDALONE-TOOLCHAIN.html} for + details.</li> + </ul> + <p class="note"><strong>Note:</strong> This feature is experimental. Please try it and + <a href="http://code.google.com/p/android/issues/list">report any issues</a>.</p></li> + <li>Added Gold linker {@code ld.gold} for the Windows toolchain. Gold linker is also the + default for ARM and X86 on all hosts. You may override it to use the {@code ld.bfd} + linker by adding {@code LOCAL_LDFLAGS += -fuse-ld=bfd} to {@code Android.mk}, or by +passing + {@code -fuse-ld=bfd} to the g++/clang++ command line that does the linking.</li> + <li>Added checks for spaces in the NDK path to the {@code ndk-build[.cmd]} and + {@code ndk-gdb} scripts, to prevent build errors that are difficult to diagnose.</li> + <li>Made the following changes to API level handling: + <ul> + <li>Modified build logic so that projects that specify {@code android-10} through + {@code android-13} in {@code APP_PLATFORM}, {@code project.properties} or + {@code default.properties} link against {@code android-9} instead of + {@code android-14}. + <li>Updated build so that executables using android-16 (Jelly Bean) or higher are + compiled with the {@code -fPIE} option for position-independent executables (PIE). + A new {@code APP_PIE} option allows you to control this behavior. See {@code + APPLICATION-MK.html} for details. + <p class="note"> + <strong>Note:</strong> All API levels above 14 still link against {@code + platforms/android-14} and no new {@code platforms/android-N} have been added. + </p></li> + <li>Modified {@code ndk-build} to provide warnings if the adjusted API level is larger + than {@code android:minSdkVersion} in the project's {@code AndroidManifest.xml}.</li> + </ul> + </li> + <li>Updated the {@code cpu-features} helper library to include more ARM-specific features. + See {@code sources/android/cpufeatures/cpu-features.h} for details.</li> + <li>Modified the long double on the X86 platform to be 8 bytes. This data type is now the + same size as a double, but is still treated as a distinct type.</li> + <li>Updated build for {@code APP_ABI=armeabi-v7a}: + <ul> + <li>Modified this build type to pass the {@code -march=armv7-a} parameter + to the linker. This change ensures that v7-specific libraries and {@code crt*.o} are + linked correctly.</li> + <li>Added {@code -mfpu=vfpv3-d16} to {@code ndk-build} instead of the + {@code -mfpu=vfp} option used in previous releases.</li> + </ul> + </li> + </ul> + </dd> + </dl> + + <dl> + <dt>Important bug fixes:</dt> + + <dd> + <ul> + <li>Fixed an issue where running {@code make-standalone-toolchain.sh} with root privileges + resulted in the stand alone tool chain being inaccessible to some users. + (<a href="http://b.android.com/35279">Issue 35279</a>) + <ul> + <li>All files and executables in the NDK release package are set to have read and + execute permissions for all.</li> + <li>The ownership/group of {@code libstdc++.a} is now preserved when copied.</li> + </ul> + </li> + <li>Removed redundant {@code \r} from Windows prebuilt {@code echo.exe}. The redundant + {@code \r} caused {@code gdb.setup} to fail in the GNU Debugger (GDB) because it + incorrectly became part of the path. + (<a href="http://b.android.com/36054">Issue 36054</a>)</li> + <li>Fixed Windows parallel builds that sometimes failed due to timing issues in the + {@code host-mkdir} implementation. + (<a href="http://b.android.com/25875">Issue 25875</a>)</li> + <li>Fixed GCC 4.4.3 GNU {@code libstdc++} to <em>not</em> merge {@code typeinfo} names by + default. For more details, see + {@code toolchain repo gcc/gcc-4.4.3/libstdc++-v3/libsupc++/typeinfo}. + (<a href="http://b.android.com/22165">Issue 22165</a>)</li> + <li>Fixed problem on {@code null} context in GCC 4.6 + {@code cp/mangle.c::write_unscoped_name}, where GCC may crash when the context is + {@code null} and dereferenced in {@code TREE_CODE}.</li> + <li>Fixed GCC 4.4.3 crashes on ARM NEON-specific type definitions for floats. + (<a href="http://b.android.com/34613">Issue 34613</a>)</li> + <li>Fixed the {@code STLport} internal {@code _IteWrapper::operator*()} implementation + where a stale stack location holding the dereferenced value was returned and caused + runtime crashes. + (<a href="http://b.android.com/38630">Issue 38630</a>)</li> + + <li>ARM-specific fixes: + <ul> + <li>Fixed ARM GCC 4.4.3/4.6 {@code g++} to not warn that the <em>mangling of + <va_list> was changed in GCC 4.4</em>. The workaround using the + {@code -Wno-psabi} switch to avoid this warning is no longer required.</li> + <li>Fixed an issue when a project with {@code .arm} or {@code .neon} suffixes in + {@code LOCAL_SRC_FILES} also used {@code APP_STL}. With {@code APP_STL}, the + {@code ndk-build} script searches for C++ files in {@code LOCAL_SRC_FILES} before + adding STL {@code header/lib} paths to compilation. Modified {@code ndk-build} to + filter out {@code .arm} and {@code .neon} suffixes before the search, otherwise items + in {@code LOCAL_SRC_FILES} like {@code myfile.cpp.arm.neon} won't be compiled as C++ + code.</li> + <li>Fixed {@code binutils-2.21/ld.bfd} to be capable of linking object from older + binutils without {@code tag_FP_arch}, which was producing <em>assertion fail</em> + error messages in GNU Binutils. + (<a href="http://b.android.com/35209">Issue 35209</a>) + </li> + <li>Removed <em>Unknown EABI object attribute 44</em> warning when + {@code binutils-2.19/ld} links prebuilt object by newer {@code binutils-2.21}</li> + <li>Fixed an issue in GNU {@code stdc++} compilation with both {@code -mthumb} and + {@code -march=armv7-a}, by modifying {@code make-standalone-toolchain.sh} to populate + {@code headers/libs} in sub-directory {@code armv7-a/thumb}. + (<a href="http://b.android.com/35616">Issue 35616</a>) + </li> + <li>Fixed <em>unresolvable R_ARM_THM_CALL relocation</em> error. + (<a href="http://b.android.com/35342">Issue 35342</a>) + </li> + <li>Fixed internal compiler error at {@code reload1.c:3633}, caused by the ARM + back-end expecting the wrong operand type when sign-extend from {@code char}. + (<a href="http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50099">GCC Issue 50099</a>)</li> + <li>Fixed internal compiler error with negative shift amount. + (<a href="http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00594.html">GCC Issue</a>)</li> + </ul> + </li> + + <li>Fixed {@code -fstack-protector} for X86, which is also the default for the + {@code ndk-build} x86 ABI target.</li> + + <li>MIPS-specific fixes: + <ul> + <li>Fixed {@code STLport} endian-ness by setting {@code _STLP_LITTLE_ENDIAN} to 1 when + compiling MIPS {@code libstlport_*}.</li> + <li>Fixed GCC {@code __builtin_unreachable} issue when compiling LLVM. + (<a href="http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54369">GCC Issue 54369</a>)</li> + <li>Backported fix for {@code cc1} compile process consuming 100% CPU. + (<a href="http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50380">GCC Issue 50380</a>)</li> + </ul> + </li> + + <li>GNU Debugger-specific fixes: + <ul> + <li>Disabled Python support in gdb-7.x at build, otherwise the gdb-7.x configure + function may pick up whatever Python version is available on the host and build + {@code gdb} with a hard-wired dependency on a specific version of Python. + (<a href="http://b.android.com/36120">Issue 36120</a>) + </li> + <li>Fixed {@code ndk-gdb} when {@code APP_ABI} contains {@code all} and matchs none + of the known architectures. + (<a href="http://b.android.com/35392">Issue 35392</a>) + </li> + <li>Fixed Windows pathname support, by keeping the {@code :} character if it looks + like it could be part of a Windows path starting with a drive letter. + (<a href="http://sourceware.org/bugzilla/show_bug.cgi?id=12843">GDB Issue 12843</a>) + </li> + <li>Fixed adding of hardware breakpoint support for ARM in {@code gdbserver}. + (<a href="http://sourceware.org/ml/gdb-patches/2011-09/msg00200.html">GDB Issue</a>) + </li> + <li>Added fix to only read the current {@code solibs} when the linker is consistent. + This change speeds up {@code solib} event handling. + (<a href="http://b.android.com/37677">Issue 37677</a>) + </li> + <li>Added fix to make repeated attempts to find {@code solib} breakpoints. GDB now + retries {@code enable_break()} during every call to {@code svr4_current_sos()} until + it succeeds. + (<a href="https://android-review.googlesource.com/#/c/43563">Change 43563</a>)</li> + <li>Fixed an issue where {@code gdb} would not stop on breakpoints placed in + {@code dlopen-ed} libraries. + (<a href="http://b.android.com/34856">Issue 34856</a>) + </li> + <li>Fixed {@code SIGILL} in dynamic linker when calling {@code dlopen()}, on system + where {@code /system/bin/linker} is stripped of symbols and + {@code rtld_db_dlactivity()} is implemented as {@code Thumb}, due to not preserving + {@code LSB} of {@code sym_addr}. + (<a href="http://b.android.com/37147">Issue 37147</a>) + </li> + </ul> + </li> + </ul> + </dd> + </dl> + + <dl> + <dt>Other bug fixes:</dt> + + <dd> + <ul> + <li>Fixed NDK headers: + <ul> + <li>Fixed {@code arch-mips/include/asm/*} code that was incorrectly removed from + original kernel. (<a href="https://android-review.googlesource.com/#/c/43335">Change + 43335</a>)</li> + <li>Replaced struct member data {@code __unused} with {@code __linux_unused} in + {@code linux/sysctl.h} and {@code linux/icmp.h} to avoid conflict with + {@code #define __unused} in {@code sys/cdefs.h}.</li> + <li>Fixed {@code fenv.h} for enclosed C functions with {@code __BEGIN_DECLS} and + {@code __END_DECLS}.</li> + <li>Removed unimplemented functions in {@code malloc.h}.</li> + <li>Fixed {@code stdint.h} defintion of {@code uint64_t} for ANSI compilers. + (<a href="http://b.android.com/1952">Issue 1952</a>)</li> + <li>Fixed preprocessor macros in {@code <arch>/include/machine/*}.</li> + <li>Replaced {@code link.h} for MIPS with new version supporting all platforms.</li> + <li>Removed {@code linux-unistd.h}</li> + <li>Move GLibc-specific macros {@code LONG_LONG_MIN}, {@code LONG_LONG_MAX} and + {@code ULONG_LONG_MAX} from {@code <pthread.h>} to {@code +<limits.h>}.</li> + </ul> + </li> + <li>Fixed a buffer overflow in {@code ndk-stack-parser}.</li> + <li>Fixed {@code _STLP_USE_EXCEPTIONS}, when not defined, to omit all declarations + and uses of {@code __Named_exception}. Compiling and use of {@code __Named_exception} + settings only occurs when {@code STLport} is allowed to use exceptions.</li> + <li>Fixed building of Linux-only NDK packages without also building Windows code. Use the + following settings to perform this type of build: + <pre>./build/tools/make-release.sh --force --systems=linux-x86</pre></li> + <li>Fixed {@code libc.so} so it does not export {@code atexit()} and {@code __do_handler}. + These symbols are exported for ARM builds by the system version of the C library to + support legacy native libraries. NDK-generated should never reference them directly. + Instead, each shared library or executable should embed its own version of these symbols, + provided by {@code crtbegin_*.o}. + <p>If your project is linked with the {@code -nostdlib -Wl,--no-undefined} options, you + must provide your own {@code __dso_handle} because {@code crtbegin_so.o} is not linked in + this case. The content of {@code __dso_handle} does not matter, as shown in the following + example code:</p> +<pre> +extern "C" { + extern void *__dso_handle __attribute__((__visibility__ ("hidden"))); + void *__dso_handle; +} +</pre> + </li> + <li>Fixed symbol decoder for ARM used in {@code objdump} for {@code plt} entries to + generate a more readable form {@code function@plt}.</li> + <li>Removed the following symbols, introduced in GCC 4.6 {@code libgcc.a}, from + the X86 platform {@code libc.so} library: {@code __aeabi_idiv0}, {@code __aeabi_ldiv0}, + {@code __aeabi_unwind_cpp_pr1}, and {@code __aeabi_unwind_cpp_pr2}.</li> + <li>Removed unused {@code .ctors}, {@code .dtors}, and {@code .eh_frame} in MIPS + {@code crt*_so.S}.</li> + <li>Updated {@code ndk-gdb} so that it only takes the last line of output for + {@code ndk-build} {@code DUMP_XXXX}. This change ensures that if {@code Application.mk} or + {@code Android.mk} print something with {@code $(info ...)} syntax, it does not get + injected into the result of {@code DUMP_XXXX}. + (<a href="https://groups.google.com/d/msg/android-ndk/-/ew0lTWGr1UEJ">More info</a>)</li> + </ul> + </dd> + </dl> + + <dl> + <dt>Other changes:</dt> + + <dd> + <ul> + <li>Removed {@code arch-x86} and {@code arch-mips} headers from + {@code platforms/android-[3,4,5,8]}. Those headers were incomplete, since both X86 and + MIPS ABIs are only supported at API 9 or higher.</li> + <li>Simplified c++ include path in standalone packages, as shown below. + (<a href="http://b.android.com/35279">Issue 35279</a>) +<pre> +<path>/arm-linux-androideabi/include/c++/4.6.x-google + to: +<path>/include/c++/4.6/ +</pre></li> + <li>Fixed {@code ndk-build} to recognize more C++ file extensions by default: + {@code .cc .cp .cxx .cpp .CPP .c++ .C}. You may still use {@code LOCAL_CPP_EXTENSION} to + overwrite these extension settings.</li> + <li>Fixed an issue in {@code samples/san-angeles} that caused a black screen or freeze + frame on re-launch.</li> + <li>Replaced deprecated APIs in NDK samples. + (<a href="http://b.android.com/20017">Issue 20017</a>) + <ul> + <li>{@code hello-gl2} from android-5 to android-7</li> + <li>{@code native-activity} from android-9 to android-10</li> + <li>{@code native-audio} from android-9 to android-10</li> + <li>{@code native-plasma} from android-9 to android-10</li> + </ul> + </li> + <li>Added new branding for Android executables with a simpler scheme in section + {@code .note.android.ident} (defined in {@code crtbegin_static/dynamic.o}) so that + debugging tools can act accordingly. The structure member and values are defined as + follows: +<pre> +static const struct { + int32_t namesz; /* = 8, sizeof ("Android") */ + int32_t descsz; /* = 1 * sizeof(int32_t) */ + int32_t type; /* = 1, ABI_NOTETYPE */ + char name[sizeof "Android"]; /* = "Android" */ + int32_t android_api; /* = 3, 4, 5, 8, 9, 14 */ +} +</pre> + <p>The previous branding options in section {@code .note.ABI-tag} are deprecated.</p> + </li> + <li>Added a new script {@code run-tests-all.sh} which calls {@code run-tests.sh} and + {@code standalone/run.sh} with various conditions. The script {@code run-tests.sh} runs + without the {@code --abi} option, and is enhanced to compile most of the tests for all + supported ABIs and run on all attached devices</li> + </ul> + </dd> + </dl> + + </div> +</div> + +<div class="toggle-content closed"> + <p><a href="#" onclick="return toggleContent(this)"> + <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" + alt="">Android NDK, Revision 8b</a> <em>(July 2012)</em> + </p> + + <div class="toggle-content-toggleme"> + <p>The main features of this release are a new GNU Compiler Collection (GCC) 4.6 toolchain and +GNU Debugger (GDB) 7.3.x which adds debugging support for the Android 4.1 (API Level 16) system +image.</p> + + <dl> + <dt>Important bug fixes:</dt> + + <dd> + <ul> + <li>Fixed {@code LOCAL_SHORT_COMMANDS} issues on Mac OS, Windows Cygwin environments for +static libraries. List file generation is faster, and it is not regenerated to avoid repeated +project rebuilds.</li> + <li>Fixed several issues in {@code ndk-gdb}: + <ul> + <li>Updated tool to pass flags {@code -e}, {@code -d} and {@code -s} to adb more +consistently.</li> + <li>Updated tool to accept device serial names containing spaces.</li> + <li>Updated tool to retrieve {@code /system/bin/link} information, so {@code gdb} on +the host can set a breakpoint in {@code __dl_rtld_db_dlactivity} and be aware of linker activity +(e.g., rescan {@code solib} symbols when {@code dlopen()} is called).</li> + </ul> + </li> + <li>Fixed {@code ndk-build clean} on Windows, which was failing to remove +{@code ./libs/*/lib*.so}.</li> + <li>Fixed {@code ndk-build.cmd} to return a non-zero {@code ERRORLEVEL} when {@code make} +fails.</li> + <li>Fixed {@code libc.so} to stop incorrectly exporting the {@code __exidx_start} and +{@code __exidx_end} symbols.</li> + <li>Fixed {@code SEGV} when unwinding the stack past {@code __libc_init} for ARM and +MIPS.</li> + </ul> + </dd> + </dl> + + <dl> + <dt>Important changes:</dt> + + <dd> + <ul> + <li>Added GCC 4.6 toolchain ({@code binutils} 2.21 with {@code gold} and GDB 7.3.x) to +co-exist with the original GCC 4.4.3 toolchain ({@code binutils} 2.19 and GDB 6.6). + <ul> + <li>GCC 4.6 is now the default toolchain. You may set {@code +NDK_TOOLCHAIN_VERSION=4.4.3} in {@code Application.mk} to select the original one.</li> + <li>Support for the {@code gold} linker is only available for ARM and x86 +architectures on Linux and Mac OS hosts. This support is disabled by default. Add {@code +LOCAL_LDLIBS += -fuse-ld=gold} in {@code Android.mk} to enable it.</li> + <li>Programs compiled with {@code -fPIE} require the new {@code GDB} for debugging, +including binaries in Android 4.1 (API Level 16) system images.</li> + <li>The {@code binutils} 2.21 {@code ld} tool contains back-ported fixes from +version 2.22: + <ul> + <li>Fixed {@code ld --gc-sections}, which incorrectly retains zombie references to +external libraries. (<a href="http://sourceware.org/bugzilla/show_bug.cgi?id=13177">more +info</a>).</li> + <li>Fixed ARM {@code strip} command to preserve the original {@code p_align} and +{@code p_flags} in {@code GNU_RELRO} section if they are valid. Without this fix, programs +built with {@code -fPIE} could not be debugged. (<a +href="http://sourceware.org/cgi-bin/cvsweb.cgi/src/bfd/elf.c.diff?cvsroot=src&r1=1.552&r2=1.553">mor +e info</a>)</li> + </ul> + </li> + <li>Disabled {@code sincos()} optimization for compatibility with older + platforms.</li> + </ul> + </li> + + <li>Updated build options to enable the Never eXecute (NX) bit and {@code relro}/{@code +bind_now} protections by default: + <ul> + <li>Added {@code --noexecstack} to assembler and {@code -z noexecstack} to linker +that provides NX protection against buffer overflow attacks by enabling NX bit on stack and +heap.</li> + <li>Added {@code -z relro} and {@code -z now} to linker for hardening of internal +data sections after linking to guard against security vulnerabilities caused by memory corruption. +(more info: <a href="http://www.akkadia.org/drepper/nonselsec.pdf">1</a>, +<a href="http://tk-blog.blogspot.com/2009/02/relro-not-so-well-known-memory.html">2</a>)</li> + + <li>These features can be disabled using the following options: + <ol> + <li>Disable NX protection by setting the {@code --execstack} option for the +assembler and {@code -z execstack} for the linker.</li> + <li>Disable hardening of internal data by setting the {@code -z norelro} and +{@code -z lazy} options for the linker.</li> + <li>Disable these protections in the NDK {@code jni/Android.mk} by setting the +following options: +<pre> +LOCAL_DISABLE_NO_EXECUTE=true # disable "--noexecstack" and "-z noexecstack" +DISABLE_RELRO=true # disable "-z relro" and "-z now" +</pre> + </li> + </ol> + <p>See {@code docs/ANDROID-MK.html} for more details.</p> + </li> + </ul> + </li> + + <li>Added branding for Android executables with the {@code .note.ABI-tag} section (in +{@code crtbegin_static/dynamic.o}) so that debugging tools can act accordingly. The structure +member and values are defined as follows: +<pre> +static const struct { + int32_t namesz; /* = 4, sizeof ("GNU") */ + int32_t descsz; /* = 6 * sizeof(int32_t) */ + int32_t type; /* = 1 */ + char name[sizeof "GNU"]; /* = "GNU" */ + int32_t os; /* = 0 */ + int32_t major; /* = 2 */ + int32_t minor; /* = 6 */ + int32_t teeny; /* = 15 */ + int32_t os_variant; /* = 1 */ + int32_t android_api; /* = 3, 4, 5, 8, 9, 14 */ +}</pre> + </li> + </ul> + </dd> + </dl> + + <dl> + <dt>Other bug fixes:</dt> + + <dd> + <ul> + <li>Fixed {@code mips-linux-gnu} relocation truncated to fit {@code R_MIPS_TLS_LDM} issue. + (<a href="http://sourceware.org/bugzilla/show_bug.cgi?id=12637">more info</a>)</li> + <li>Fixed {@code ld} tool segfaults when using {@code --gc-sections}. + (<a href="http://sourceware.org/bugzilla/show_bug.cgi?id=12845">more info</a>) + </li> + <li>Fixed MIPS {@code GOT_PAGE} counting issue. + (<a href="http://sourceware.org/ml/binutils/2011-05/msg00198.html">more info</a>)</li> + <li>Fixed follow warning symbol link for {@code mips_elf_count_got_symbols}.</li> + <li>Fixed follow warning symbol link for {@code mips_elf_allocate_lazy_stub}.</li> + <li>Moved MIPS {@code .dynamic} to the data segment, so that it is writable.</li> + <li>Replaced hard-coded values for symbols with correct segment sizes for MIPS.</li> + <li>Removed the {@code -mno-shared} option from the defaults in the MIPS toolchain. +The default for Android toolchain is {@code -fPIC} (or {@code -fpic} if supported). If you do not +explicitly specify {@code -mshared}, {@code -fpic}, {@code -fPIC}, {@code -fpie}, or {@code -fPIE}, +the MIPS compiler adds {@code -mno-shared} that turns off PIC. Fixed compiler not to add +{@code -mno-shared} in this case.</li> + <li>Fixed wrong package names in samples {@code hello-jni} and {@code two-libs} so that +the {@code tests} project underneath it can compile.</li> + </ul> + </dd> + </dl> + + <dl> + <dt>Other Changes:</dt> + + <dd> + <ul> + <li>Changed locations of binaries: + <ul> + <li>Moved {@code gdbserver} from +{@code toolchain/<arch-os-ver>/prebuilt/gdbserver} to +{@code prebuilt/android-<arch>/gdbserver/gdbserver}.</li> + <li>Renamed x86 toolchain prefix from {@code i686-android-linux-} to +{@code i686-linux-android-}.</li> + <li>Moved {@code sources/cxx-stl/gnu-libstdc++/include} and {@code lib} to +{@code sources/cxx-stl/gnu-libstdc++/4.6} when compiled with GCC 4.6, or +{@code sources/cxx-stl/gnu-libstdc++/4.4.3} when compiled with GCC 4.4.3.</li> + <li>Moved {@code libbfd.a} and {@code libintl.a} from {@code lib/} to {@code +lib32/}.</li> + </ul> + </li> + + <li>Added and improved various scripts in the rebuild and test NDK toolchain: + <ul> + <li>Added {@code build-mingw64-toolchain.sh} to generate a new Linux-hosted toolchain +that generates Win32 and Win64 executables.</li> + <li>Improved speed of {@code download-toolchain-sources.sh} by using the {@code +clone} command and only using {@code checkout} for the directories that are needed to build the NDK +toolchain binaries.</li> + <li>Added {@code build-host-gcc.sh} and {@code build-host-gdb.sh} scripts.</li> + <li>Added {@code tests/check-release.sh} to check the content of a given NDK +installation directory, or an existing NDK package.</li> + <li>Rewrote the {@code tests/standalone/run.sh} standalone tests .</li> + </ul> + </li> + <li>Removed {@code if_dl.h} header from all platforms and architectures. The {@code +AF_LINK} and {@code sockaddr_dl} elements it describes are specific to BSD (i.e., they don't exist +in Linux).</li> + </ul> + </dd> + </dl> + + </div> +</div> + +<div class="toggle-content closed"> + <p><a href="#" onclick="return toggleContent(this)"> + <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" + alt="">Android NDK, Revision 8</a> <em>(May 2012)</em> + </p> + + <div class="toggle-content-toggleme"> + <p>This release of the NDK includes support for MIPS ABI and a few additional fixes.</p> + + <dl> + <dt>New features:</dt> + + <dd> + <ul> + <li>Added support for the MIPS ABI, which allows you to generate machine code that runs on + compatible MIPS-based Android devices. Major features for MIPS include MIPS-specific + toolchains, system headers, libraries and debugging support. For more details regarding + MIPS support, see {@code docs/CPU-MIPS.html} in the NDK package. + + <p>By default, code is generated for ARM-based devices. You can add {@code mips} to + your {@code APP_ABI} definition in your {@code Application.mk} file to build + for MIPS platforms. For example, the following line instructs {@code ndk-build} + to build your code for three distinct ABIs:</p> + + <pre>APP_ABI := armeabi armeabi-v7a <strong>mips</strong></pre> + + <p>Unless you rely on architecture-specific assembly sources, such as ARM assembly + code, you should not need to touch your {@code Android.mk} files to build MIPS + machine code.</p> + </li> + + <li>You can build a standalone MIPS toolchain using the {@code --arch=mips} + option when calling <code>make-standalone-toolchain.sh</code>. See + {@code docs/STANDALONE-TOOLCHAIN.html} for more details. + </li> + </ul> + + <p class="note"><strong>Note:</strong> To ensure that your applications are available +to users only if their devices are capable of running them, Google Play filters applications based +on the instruction set information included in your application ? no action is needed on your part +to enable the filtering. Additionally, the Android system itself also checks your application at +install time and allows the installation to continue only if the application provides a library that +is compiled for the device's CPU architecture.</p> + </dd> + + <dt>Important bug fixes:</dt> + + <dd> + <ul> + <li>Fixed a typo in GAbi++ implementation where the result of {@code + dynamic_cast<D>(b)} of base class object {@code b} to derived class {@code D} is + incorrectly adjusted in the opposite direction from the base class. + (<a href="http://b.android.com/28721">Issue 28721</a>) + </li> + <li>Fixed an issue in which {@code make-standalone-toolchain.sh} fails to copy + {@code libsupc++.*}.</li> + </ul> + </dd> + + <dt>Other bug fixes:</dt> + + <dd> + <ul> + <li>Fixed {@code ndk-build.cmd} to ensure that {@code ndk-build.cmd} works correctly even + if the user has redefined the {@code SHELL} environment variable, which may be changed + when installing a variety of development tools in Windows environments. + </li> + </ul> + </dd> + </dl> + </div> +</div> + +<div class="toggle-content closed"> + <p><a href="#" onclick="return toggleContent(this)"> + <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" + alt="">Android NDK, Revision 7c</a> <em>(April 2012)</em> + </p> + + <div class="toggle-content-toggleme"> + <p>This release of the NDK includes an important fix for Tegra2-based devices, and a few +additional fixes and improvements:</p> + + <dl> + <dt>Important bug fixes:</dt> + + <dd> + <ul> + <li>Fixed GNU STL armeabi-v7a binaries to not crash on non-NEON + devices. The files provided with NDK r7b were not configured properly, + resulting in crashes on Tegra2-based devices and others when trying to use + certain floating-point functions (e.g., {@code cosf}, {@code sinf}, {@code expf}).</li> + </ul> + </dd> + + <dt>Important changes:</dt> + + <dd> + <ul> + <li>Added support for custom output directories through the {@code NDK_OUT} + environment variable. When defined, this variable is used to store all + intermediate generated files, instead of {@code $PROJECT_PATH/obj}. The variable is + also recognized by {@code ndk-gdb}. </li> + <li>Added support for building modules with hundreds or even thousands of source + files by defining {@code LOCAL_SHORT_COMMANDS} to {@code true} in your {@code Android.mk}. + <p>This change forces the NDK build system to put most linker or archiver options + into list files, as a work-around for command-line length limitations. + See {@code docs/ANDROID-MK.html} for details.</p> + </li> + </ul> + </dd> + + <dt>Other bug fixes:</dt> + + <dd> + <ul> + <li>Fixed {@code android_getCpuCount()} implementation in the {@code cpufeatures} +helper library. On certain devices, where cores are enabled dynamically by the system, the previous +implementation would report the total number of <em>active</em> cores the first time the function +was called, rather than the total number of <em>physically available</em> cores.</li> + </ul> + </dd> + </dl> + </div> +</div> + + +<div class="toggle-content closed"> + <p><a href="#" onclick="return toggleContent(this)"> + <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" + alt="">Android NDK, Revision 7b</a> <em>(February 2012)</em> + </p> + + <div class="toggle-content-toggleme"> + <p>This release of the NDK includes fixes for native Windows builds, Cygwin and many other + improvements:</p> + + <dl> + <dt>Important bug fixes:</dt> + + <dd> + <ul> + <li>Updated {@code 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 be completely eliminated. + For more details, read {@code docs/ANDROID-ATOMICS.html}.</li> + <li>Reverted to {@code binutils} 2.19 to fix debugging issues that + appeared in NDK r7 (which switched to {@code binutils} 2.20.1).</li> + <li>Fixed {@code ndk-build} on 32-bit Linux. A packaging error put a 64-bit version + of the {@code awk} executable under {@code prebuilt/linux-x86/bin} in NDK r7.</li> + <li>Fixed native Windows build ({@code ndk-build.cmd}). Other build modes were not + affected. The fixes include: + <ul> + <li>Removed an infinite loop / stack overflow bug that happened when trying + to call {@code ndk-build.cmd} from a directory that was <em>not</em> the top of + your project path (e.g., in any sub-directory of it).</li> + <li>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.</li> + <li>Fixed a problem where special characters in files or paths, other than spaces and + quotes, were not correctly handled.</li> + </ul> + </li> + <li>Fixed the standalone toolchain to generate proper binaries when using + {@code -lstdc++} (i.e., linking against the GNU {@code libstdc++} C++ runtime). You + should use {@code -lgnustl_shared} if you want to link against the shared library + version or {@code -lstdc++} for the static version. + + <p>See {@code docs/STANDALONE-TOOLCHAIN.html} for more details about this fix.</p> + </li> + <li>Fixed {@code gnustl_shared} on Cygwin. The linker complained that it couldn't find + {@code libsupc++.a} even though the file was at the right location.</li> + <li>Fixed Cygwin C++ link when not using any specific C++ runtime through + {@code APP_STL}.</li> + </ul> + </dd> + </dl> + + <dl> + <dt>Other changes:</dt> + + <dd> + <ul> + <li>When your application uses the GNU {@code libstdc++} runtime, the compiler will + no longer forcibly enable exceptions and RTTI. This change results in smaller code. + <p>If you need these features, you must do one of the following:</p> + <ul> + <li>Enable exceptions and/or RTTI explicitly in your modules or + {@code Application.mk}. (recommended)</li> + <li>Define {@code APP_GNUSTL_FORCE_CPP_FEATURES} to {@code 'exceptions'}, + {@code 'rtti'} or both in your {@code Application.mk}. See + {@code docs/APPLICATION-MK.html} for more details.</li> + </ul> + </li> + <li>{@code 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 {@code ps}, which is usually a service process.</li> + <li>Fixed a rare bug where NDK r7 would fail to honor the {@code LOCAL_ARM_MODE} value + and always compile certain source files (but not all) to 32-bit instructions.</li> + <li>{@code STLport}: Refresh the sources to match the Android platform version. This + update fixes a few minor bugs: + <ul> + <li>Fixed instantiation of an incomplete type</li> + <li>Fixed minor "==" versus "=" typo</li> + <li>Used {@code memmove} instead of {@code memcpy} in {@code string::assign}</li> + <li>Added better handling of {@code IsNANorINF}, {@code IsINF}, {@code IsNegNAN}, + etc.</li> + </ul> + <p>For complete details, see the commit log.</p> + </li> + <li>{@code STLport}: Removed 5 unnecessary static initializers from the library.</li> + <li>The GNU libstdc++ libraries for armeabi-v7a were mistakenly compiled for + armeabi instead. This change had no impact on correctness, but using the right + ABI should provide slightly better performance.</li> + <li>The {@code cpu-features} helper library was updated to report three optional + x86 CPU features ({@code SSSE3}, {@code MOVBE} and {@code POPCNT}). See + {@code docs/CPU-FEATURES.html} for more details.</li> + <li>{@code docs/NDK-BUILD.html} was updated to mention {@code NDK_APPLICATION_MK} instead + of {@code NDK_APP_APPLICATION_MK} to select a custom {@code Application.mk} file.</li> + <li>Cygwin: {@code ndk-build} no longer creates an empty "NUL" file in the current + directory when invoked.</li> + <li>Cygwin: Added better automatic dependency detection. In the previous version, it + didn't work properly in the following cases: + <ul> + <li>When the Cygwin drive prefix was not {@code /cygdrive}.</li> + <li>When using drive-less mounts, for example, when Cygwin would translate + {@code /home} to {@code \\server\subdir} instead of {@code C:\Some\Dir}.</li> + </ul> + </li> + <li>Cygwin: {@code ndk-build} does not try to use the native Windows tools under + {@code $NDK/prebuilt/windows/bin} with certain versions of Cygwin and/or GNU Make.</li> + </ul> + </dd> + </dl> + </div> +</div> + + +<div class="toggle-content closed"> + <p><a href="#" onclick="return toggleContent(this)"> + <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" + alt="">Android NDK, Revision 7</a> <em>(November 2011)</em> + </p> + + <div class="toggle-content-toggleme"> + <p>This release of the NDK includes new features to support the Android 4.0 platform as well + as many other additions and improvements:</p> + + <dl> + <dt>New features</dt> + + <dd> + <ul> + <li>Added official NDK APIs for Android 4.0 (API level 14), which adds the following + native features to the platform: + + <ul> + <li>Added native multimedia API based on the Khronos Group OpenMAX AL? 1.0.1 + standard. The new <code><OMXAL/OpenMAXAL.h></code> and + <code><OMXAL/OpenMAXAL_Android.h></code> headers allow applications targeting + API level 14 to perform multimedia output directly from native code by using a new + Android-specific buffer queue interface. For more details, see + <code>docs/openmaxal/index.html</code> and <a href= + "http://www.khronos.org/openmax/">http://www.khronos.org/openmax/</a>.</li> + + <li>Updated the native audio API based on the Khronos Group OpenSL ES 1.0.1? + standard. With API Level 14, you can now decode compressed audio (e.g. MP3, AAC, + Vorbis) to PCM. For more details, see <code>docs/opensles/index.html</code> and + <a href= + "http://www.khronos.org/opensles">http://www.khronos.org/opensles/</a>.</li> + </ul> + </li> + + <li>Added CCache support. To speed up large rebuilds, define the + <code>NDK_CCACHE</code> environment variable to <code>ccache</code> (or the path to + your <code>ccache</code> binary). When declared, the NDK build system automatically + uses CCache when compiling any source file. For example: + <pre> +export NDK_CCACHE=ccache +</pre> + <p class="note"><strong>Note:</strong> CCache is not included in the NDK release + so you must have it installed prior to using it. For more information about CCache, see + <a href="http://ccache.samba.org">http://ccache.samba.org</a>.</p> + </li> + + <li>Added support for setting <code>APP_ABI</code> to <code>all</code> 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 the following two lines in your + <code>Application.mk</code> are equivalent with this release: + <pre> +APP_ABI := all +APP_ABI := armeabi armeabi-v7a x86 +</pre> + + <p>This also works if you define <code>APP_ABI</code> when calling + <code>ndk-build</code> from the command-line, which is a quick way to check that your + project builds for all supported ABIs without changing the project's + <code>Application.mk file</code>. For example:</p> + <pre> +ndk-build APP_ABI=all +</pre> + </li> + + <li>Added a <code>LOCAL_CPP_FEATURES</code> variable in <code>Android.mk</code> that + allows you to declare which C++ features (RTTI or Exceptions) your module uses. This + ensures that the final linking works correctly if you have prebuilt modules that depend + on these features. See <code>docs/ANDROID-MK.html</code> and + <code>docs/CPLUSPLUS-SUPPORT.html</code> for more details.</li> + + <li>Shortened paths to source and object files that are used in build commands. When + invoking <code>$NDK/ndk-build</code> from your project path, the paths to the source, + object, and binary files that are passed to the build commands are significantly + shorter now, because they are 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 behavior is unchanged + if you invoke <code>ndk-build</code> from a sub-directory of your project tree, or if + you define <code>NDK_PROJECT_PATH</code> to point to a specific directory.</li> + </ul> + </dd> + + <dt>Experimental features</dt> + + <dd> + You can now build your NDK source files on Windows <em>without</em> Cygwin by calling the + <code>ndk-build.cmd</code> script from the command line from your project path. The + script takes exactly the same arguments as the original <code>ndk-build</code> script. + The Windows NDK package comes with its own prebuilt binaries for GNU Make, Awk and other + tools required by the build. You should not need to install anything else to get a + working build system. + + <p class="caution"><strong>Important:</strong> <code>ndk-gdb</code> does not work on + Windows, so you still need Cygwin to debug.</p> + + <p>This feature is still experimental, so feel free to try it and report issues on the + <a href="http://b.android.com">public bug database</a> or <a href= + "http://groups.google.com/group/android-ndk">public forum</a>. All samples and unit tests + shipped with the NDK succesfully compile with this feature.</p> + </dd> + + <dt>Important bug fixes</dt> + + <dd> + <ul> + <li>Imported shared libraries are now installed by default to the target installation + location (<code>libs/<abi></code>) if <code>APP_MODULES</code> is not defined in + your <code>Application.mk</code>. For example, if a top-level module <code>foo</code> + imports a module <code>bar</code>, then both <code>libfoo.so</code> and + <code>libbar.so</code> are copied to the install location. Previously, only + <code>libfoo.so</code> was copied, unless you listed <code>bar</code> in your + <code>APP_MODULES</code> too. If you define <code>APP_MODULES</code> explicitly, the + behavior is unchanged.</li> + + <li><code>ndk-gdb</code> now works correctly for activities with multiple categories in + their MAIN intent filters.</li> + + <li>Static library imports are now properly transitive. For example, if a top-level + module <code>foo</code> imports static library <code>bar</code> that imports static + library <code>zoo</code>, the <code>libfoo.so</code> will now be linked against both + <code>libbar.a</code> and <code>libzoo.a</code>.</li> + </ul> + </dd> + + <dt>Other changes</dt> + + <dd> + <ul> + <li><code>docs/NATIVE-ACTIVITY.HTML</code>: Fixed typo. The minimum API level should be + 9, not 8 for native activities.</li> + + <li><code>docs/STABLE-APIS.html</code>: Added missing documentation listing EGL as a + supported stable API, starting from API level 9.</li> + + <li><code>download-toolchain-sources.sh</code>: Updated to download the toolchain + sources from <a href="http://android.googlesource.com">android.googlesource.com</a>, + which is the new location for the AOSP servers.</li> + + <li>Added a new C++ support runtime named <code>gabi++</code>. More details about it + are available in the updated <code>docs/CPLUSPLUS-SUPPORT.html</code>.</li> + + <li>Added a new C++ support runtime named <code>gnustl_shared</code> that corresponds + to the shared library version of GNU libstdc++ v3 (GPLv3 license). See more info at + <code>docs/CPLUSPLUS-SUPPORT.html</code></li> + + <li>Added support for RTTI in the STLport C++ runtimes (no support for + exceptions).</li> + + <li>Added support for multiple file extensions in <code>LOCAL_CPP_EXTENSION</code>. For + example, to compile both <code>foo.cpp</code> and <code>bar.cxx</code> as C++ sources, + declare the following: + <pre> +LOCAL_CPP_EXTENSION := .cpp .cxx +</pre> + </li> + + <li>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)</li> + + <li>Refreshed the EGL and OpenGLES Khronos headers to support more extensions. Note + that this does <em>not</em> change the NDK ABIs for the corresponding libraries, + because each extension must be probed at runtime by the client application. + + <p>The extensions that are available depend on your actual device and GPU drivers, + not the platform version the device runs on. The header changes simply add new + constants and types to make it easier to use the extensions when they have been + probed with <code>eglGetProcAddress()</code> or <code>glGetProcAddress()</code>. The + following list describes the newly supported extensions:</p> + + <dl> + <dt>GLES 1.x</dt> + + <dd> + <ul> + <li><code>GL_OES_vertex_array_object</code></li> + + <li><code>GL_OES_EGL_image_external</code></li> + + <li><code>GL_APPLE_texture_2D_limited_npot</code></li> + + <li><code>GL_EXT_blend_minmax</code></li> + + <li><code>GL_EXT_discard_framebuffer</code></li> + + <li><code>GL_EXT_multi_draw_arrays</code></li> + + <li><code>GL_EXT_read_format_bgra</code></li> + + <li><code>GL_EXT_texture_filter_anisotropic</code></li> + + <li><code>GL_EXT_texture_format_BGRA8888</code></li> + + <li><code>GL_EXT_texture_lod_bias</code></li> + + <li><code>GL_IMG_read_format</code></li> + + <li><code>GL_IMG_texture_compression_pvrtc</code></li> + + <li><code>GL_IMG_texture_env_enhanced_fixed_function</code></li> + + <li><code>GL_IMG_user_clip_plane</code></li> + + <li><code>GL_IMG_multisampled_render_to_texture</code></li> + + <li><code>GL_NV_fence</code></li> + + <li><code>GL_QCOM_driver_control</code></li> + + <li><code>GL_QCOM_extended_get</code></li> + + <li><code>GL_QCOM_extended_get2</code></li> + + <li><code>GL_QCOM_perfmon_global_mode</code></li> + + <li><code>GL_QCOM_writeonly_rendering</code></li> + + <li><code>GL_QCOM_tiled_rendering</code></li> + </ul> + </dd> + + <dt>GLES 2.0</dt> + + <dd> + <ul> + <li><code>GL_OES_element_index_uint</code></li> + + <li><code>GL_OES_get_program_binary</code></li> + + <li><code>GL_OES_mapbuffer</code></li> + + <li><code>GL_OES_packed_depth_stencil</code></li> + + <li><code>GL_OES_texture_3D</code></li> + + <li><code>GL_OES_texture_float</code></li> + + <li><code>GL_OES_texture_float_linear</code></li> + + <li><code>GL_OES_texture_half_float_linear</code></li> + + <li><code>GL_OES_texture_npot</code></li> + + <li><code>GL_OES_vertex_array_object</code></li> + + <li><code>GL_OES_EGL_image_external</code></li> + + <li><code>GL_AMD_program_binary_Z400</code></li> + + <li><code>GL_EXT_blend_minmax</code></li> + + <li><code>GL_EXT_discard_framebuffer</code></li> + + <li><code>GL_EXT_multi_draw_arrays</code></li> + + <li><code>GL_EXT_read_format_bgra</code></li> + + <li><code>GL_EXT_texture_format_BGRA8888</code></li> + + <li><code>GL_EXT_texture_compression_dxt1</code></li> + + <li><code>GL_IMG_program_binary</code></li> + + <li><code>GL_IMG_read_format</code></li> + + <li><code>GL_IMG_shader_binary</code></li> + + <li><code>GL_IMG_texture_compression_pvrtc</code></li> + + <li><code>GL_IMG_multisampled_render_to_texture</code></li> + + <li><code>GL_NV_coverage_sample</code></li> + + <li><code>GL_NV_depth_nonlinear</code></li> + + <li><code>GL_QCOM_extended_get</code></li> + + <li><code>GL_QCOM_extended_get2</code></li> + + <li><code>GL_QCOM_writeonly_rendering</code></li> + + <li><code>GL_QCOM_tiled_rendering</code></li> + </ul> + </dd> + + <dt>EGL</dt> + + <dd> + <ul> + <li><code>EGL_ANDROID_recordable</code></li> + + <li><code>EGL_NV_system_time</code></li> + </ul> + </dd> + </dl> + </li> + </ul> + </dd> + </dl> + </div> +</div> + + +<div class="toggle-content closed"> + <p><a href="#" onclick="return toggleContent(this)"> + <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" + alt="">Android NDK, Revision 6b</a> <em>(August 2011)</em> + </p> + + <div class="toggle-content-toggleme"> + <p>This release of the NDK does not include any new features compared to r6. The r6b release + addresses the following issues in the r6 release:</p> + <dl> + <dt>Important bug fixes</dt> + <dd> + <ul> + <li>Fixed the build when <code>APP_ABI="armeabi x86"</code> is used for + multi-architecture builds.</li> + <li>Fixed the location of prebuilt STLport binaries in the NDK release package. + A bug in the packaging script placed them in the wrong location.</li> + <li>Fixed <code>atexit()</code> usage in shared libraries with the x86standalone + toolchain.</li> + <li>Fixed <code>make-standalone-toolchain.sh --arch=x86</code>. It used to fail + to copy the proper GNU libstdc++ binaries to the right location.</li> + <li>Fixed the standalone toolchain linker warnings about missing the definition and + size for the <code>__dso_handle</code> symbol (ARM only).</li> + <li>Fixed the inclusion order of <code>$(SYSROOT)/usr/include</code> for x86 builds. + See the <a href="http://b.android.com/18540">bug</a> for + more information.</li> + <li>Fixed the definitions of <code>ptrdiff_t</code> and <code>size_t</code> in + x86-specific systems when they are used with the x86 standalone toolchain.</li> + </ul> + </dd> + </dl> + </div> +</div> + +<div class="toggle-content closed"> + <p><a href="#" onclick="return toggleContent(this)"> + <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" + alt="">Android NDK, Revision 6</a> <em>(July 2011)</em> + </p> + + <div class="toggle-content-toggleme"> + <p>This release of the NDK includes support for the x86 ABI and other minor changes. + For detailed information describing the changes in this release, read the + <code>CHANGES.HTML</code> document included in the NDK package. + </p> + <dl> + <dt>General notes:</dt> + <dd> + <ul> + <li>Adds support for the x86 ABI, which allows you to generate machine code + that runs on compatible x86-based Android devices. Major features for x86 + include x86-specific toolchains, system headers, libraries and + debugging support. For all of the details regarding x86 support, + see <code>docs/CPU-X86.html</code> in the NDK package. + + <p>By default, code is generated for ARM-based devices, but you can add x86 to your + <code>APP_ABI</code> definition in your <code>Application.mk</code> file to build + for x86 platforms. For example, the following line instructs <code>ndk-build</code> + to build your code for three distinct ABIs:</p> + + <pre>APP_ABI := armeabi armeabi-v7a x86</pre> + + <p>Unless you rely on ARM-based assembly sources, you shouldn't need to touch + your <code>Android.mk</code> files to build x86 machine code.</p> + + </li> + + <li>You can build a standalone x86 toolchain using the +<code>--toolchain=x86-4.4.3</code> + option when calling <code>make-standalone-toolchain.sh</code>. See + <code>docs/STANDALONE-TOOLCHAIN.html</code> for more details. + </li> + <li>The new <code>ndk-stack</code> tool lets you translate stack traces in + <code>logcat</code> that are generated by native code. The tool translates + instruction addresses into a readable format that contains things such + as the function, source file, and line number corresponding to each stack frame. + For more information and a usage example, see <code>docs/NDK-STACK.html</code>. + </li> + </ul> + </dd> + <dt>Other changes:</dt> + <dd><code>arm-eabi-4.4.0</code>, which had been deprecated since NDK r5, has been + removed from the NDK distribution.</dd> + + </dl> + </div> + </div> + +<div class="toggle-content closed"> + <p><a href="#" onclick="return toggleContent(this)"> + <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" + alt="">Android NDK, Revision 5c</a> <em>(June 2011)</em> + </p> + + <div class="toggle-content-toggleme"> + <p>This release of the NDK does not include any new features compared to r5b. The r5c release + addresses the following problems in the r5b release:</p> + <dl> + <dt>Important bug fixes:</dt> + <dd> + <ul> + <li><code>ndk-build</code>: Fixed a rare bug that appeared when trying to perform parallel + builds of debuggable projects.</li> + + <li>Fixed a typo that prevented <code>LOCAL_WHOLE_STATIC_LIBRARIES</code> to work + correctly with the new toolchain and added documentation for this in + <code>docs/ANDROID-MK.html</code>.</li> + + <li>Fixed a bug where code linked against <code>gnustl_static</code> crashed when run on + platform releases older than API level 8 (Android 2.2).</li> + + <li><code>ndk-gdb</code>: Fixed a bug that caused a segmentation fault when debugging +Android 3.0 + or newer devices.</li> + + <li><code><android/input.h></code>: Two functions that were introduced in API level + 9 (Android 2.3) were incorrect and are fixed. While this breaks the source API, the + binary interface to the system is unchanged. The incorrect functions were missing a + <code>history_index</code> parameter, and the correct definitions are shown below: +<pre> +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); +</pre> + </li> + + <li>Updated the C library ARM binary for API level 9 (Android 2.3) to correctly expose at + link time new functions that were added in that API level (for example, + <code>pthread_rwlock_init</code>).</li> + + </ul> + </dd> + + <dt>Minor improvements and fixes:</dt> + <dd> + <ul> + <li>Object files are now always linked in the order they appear in + <code>LOCAL_SRC_FILES</code>. This was not the case previously because the files were + grouped by source extensions instead.</li> + + <li>When <code>import-module</code> fails, it now prints the list of directories that + were searched. This is useful to check that the <code>NDK_MODULE_PATH</code> definition + used by the build system is correct.</li> + + <li>When <code>import-module</code> succeeds, it now prints the directory where the + module was found to the log (visible with <code>NDK_LOG=1</code>).</li> + + <li>Increased the build speed of debuggable applications when there is a very large number + of include directories in the project.</li> + + <li><code>ndk-gdb</code>: Better detection of <code>adb shell</code> failures and improved + error messages.</li> + + <li><code><pthread.h></code>: Fixed the definition of + <code>PTHREAD_RWLOCK_INITIALIZER</code> for API level 9 (Android 2.3) and higher.</li> + + <li>Fixed an issue where a module could import itself, resulting in an infinite loop in + GNU Make.</li> + + <li>Fixed a bug that caused the build to fail if <code>LOCAL_ARM_NEON</code> was set to + true (typo in <code>build/core/build-binary.mk</code>).</li> + + <li>Fixed a bug that prevented the compilation of <code>.s</code> assembly files + (<code>.S</code> files were okay).</li> + </ul> + </dd> + </dl> + </div> +</div> + +<div class="toggle-content closed"> + <p><a href="#" onclick="return toggleContent(this)"> + <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" + alt="">Android NDK, Revision 5b</a> <em>(January 2011)</em> + </p> + + <div class="toggle-content-toggleme"> + <p>This release of the NDK does not include any new features compared to r5. The r5b release +addresses the + following problems in the r5 release: + </p> + <ul> + <li>The r5 binaries required glibc 2.11, but the r5b binaries are generated with a special + toolchain that targets glibc 2.7 or higher instead. The Linux toolchain binaries now run on +Ubuntu 8.04 or higher. </li> + <li>Fixes 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.</li> + <li>Adds missing documentation for the + "gnustl_static" value for APP_STL, that allows you to link against + a static library version of GNU libstdc++. </li> the + <li>Fixed the following <code>ndk-build</code> issues: + <ul> + <li>A bug that created inconsistent dependency files when a + compilation error occured on Windows. This prevented a proper build after + the error was fixed in the source code.</li> + <li>A Cygwin-specific bug where using very short paths for + the Android NDK installation or the project path led to the + generation of invalid dependency files. This made incremental builds + impossible.</li> + <li>A typo that prevented the cpufeatures library from working correctly + with the new NDK toolchain.</li> + <li>Builds in Cygwin are faster by avoiding calls to <code>cygpath -m</code> + from GNU Make for every source or object file, which caused problems + with very large source trees. In case this doesn't work properly, define +<code>NDK_USE_CYGPATH=1</code> in your + environment to use <code>cygpath -m</code> again.</li> + <li>The Cygwin installation now notifies the user of invalid installation paths that +contain spaces. Previously, an invalid path + would output an error that complained about an incorrect version of GNU Make, even if the +right one was installed. + </ul> + </li> + <li>Fixed a typo that prevented the <code>NDK_MODULE_PATH</code> environment variable from +working properly when + it contained multiple directories separated with a colon. </li> + <li>The <code>prebuilt-common.sh</code> script contains fixes to check the compiler for 64-bit + generated machine code, instead of relying on the host tag, which + allows the 32-bit toolchain to rebuild properly on Snow Leopard. The toolchain rebuild scripts +now also support + using a 32-bit host toolchain.</li> + <li>A missing declaration for <code>INET_ADDRSTRLEN</code> was added to +<code><netinet/in.h></code>.</li> + <li>Missing declarations for <code>IN6_IS_ADDR_MC_NODELOCAL</code> and +<code>IN6_IS_ADDR_MC_GLOBAL</code> were added to <code><netinet/in6.h></code>.</li> + <li>'asm' was replaced with '__asm__' in <code><asm/byteorder.h></code> to allow +compilation with <code>-std=c99</code>.</li> + </ul> + </div> + </div> + +<div class="toggle-content closed"> + <p><a href="#" onclick="return toggleContent(this)"> + <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" + alt="">Android NDK, Revision 5</a> <em>(December 2010)</em> + </p> + + <div class="toggle-content-toggleme"> + <p>This release of the NDK includes many new APIs, most of which are introduced to + support the development of games and similar applications that make extensive use + of native code. Using the APIs, developers have direct native access to events, audio, + graphics and window management, assets, and storage. Developers can also implement the + Android application lifecycle in native code with help from the new + {@link android.app.NativeActivity} class. For detailed information describing the changes +in this + release, read the <code>CHANGES.HTML</code> document included in the downloaded NDK +package. + </p> + <dl> + <dt>General notes:</dt> + <dd> + <ul> + <li>Adds support for native activities, which allows you to implement the + Android application lifecycle in native code.</li> + + <li>Adds native support for the following: + + <ul> + + <li>Input subsystem (such as the keyboard and touch screen)</li> + + <li>Access to sensor data (accelerometer, compass, gyroscope, etc).</li> + + <li>Event loop APIs to wait for things such as input and sensor events.</li> + + <li>Window and surface subsystem</li> + + <li>Audio APIs based on the OpenSL ES standard that support playback and recording + as well as control over platform audio effects</li> + + <li>Access to assets packaged in an <code>.apk</code> file.</li> + + </ul> + </li> + + <li>Includes a new toolchain (based on GCC 4.4.3), which generates better code, and can +also now + be used as a standalone cross-compiler, for people who want to build their stuff with + <code>./configure && make</code>. See + docs/STANDALONE-TOOLCHAIN.html for the details. The binaries for GCC 4.4.0 are still +provided, + but the 4.2.1 binaries were removed.</li> + + <li>Adds support for prebuilt static and shared libraries (docs/PREBUILTS.html) and +module + exports and imports to make sharing and reuse of third-party modules much easier + (docs/IMPORT-MODULE.html explains why).</li> + + <li>Provides a default C++ STL implementation (based on STLport) as a helper module. It +can be used either + as a static or shared library (details and usage examples are in +sources/android/stlport/README). Prebuilt + binaries for STLport (static or shared) and GNU libstdc++ (static only) are also +provided if you choose to + compile against those libraries instead of the default C++ STL implementation. + C++ Exceptions and RTTI are not supported in the default STL implementation. For more +information, see + docs/CPLUSPLUS-SUPPORT.HTML.</li> + + <li>Includes improvements to the <code>cpufeatures</code> helper library that improves +reporting + of the CPU type (some devices previously reported ARMv7 CPU when the device really was +an ARMv6). We + recommend developers that use this library to rebuild their applications then + upload to Google Play to benefit from the improvements.</li> + + <li>Adds an EGL library that lets you create and manage OpenGL ES textures and + services.</li> + + <li>Adds new sample applications, <code>native-plasma</code> and +<code>native-activity</code>, + to demonstrate how to write a native activity.</li> + + <li>Includes many bugfixes and other small improvements; see docs/CHANGES.html for a +more + detailed list of changes.</li> + </ul> + </dd> + </dl> + </div> + </div> + +<div class="toggle-content closed"> + <p><a href="#" onclick="return toggleContent(this)"> + <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" + alt="">Android NDK, Revision 4b</a> <em>(June 2010)</em> + </p> + + <div class="toggle-content-toggleme"> + <dl> + <dt>NDK r4b notes:</dt> + + <dd> + <p>Includes fixes for several issues in the NDK build and debugging scripts — if + you are using NDK r4, we recommend downloading the NDK r4b build. For detailed + information describing the changes in this release, read the CHANGES.TXT document + included in the downloaded NDK package.</p> + </dd> + </dl> + + <dl> + <dt>General notes:</dt> + + <dd> + <ul> + <li>Provides a simplified build system through the new <code>ndk-build</code> build + command.</li> + + <li>Adds support for easy native debugging of generated machine code on production + devices through the new <code>ndk-gdb</code> command.</li> + + <li>Adds a new Android-specific ABI for ARM-based CPU architectures, + <code>armeabi-v7a</code>. The new ABI extends the existing <code>armeabi</code> ABI to + include these CPU instruction set extensions: + + <ul> + <li>Thumb-2 instructions</li> + + <li>VFP hardware FPU instructions (VFPv3-D16)</li> + + <li>Optional support for ARM Advanced SIMD (NEON) GCC intrinsics and VFPv3-D32. + Supported by devices such as Verizon Droid by Motorola, Google Nexus One, and + others.</li> + </ul> + </li> + + <li>Adds a new <code>cpufeatures</code> static library (with sources) that lets your + app detect the host device's CPU features at runtime. Specifically, applications can + check for ARMv7-A support, as well as VFPv3-D32 and NEON support, then provide separate + code paths as needed.</li> + + <li>Adds a sample application, <code>hello-neon</code>, that illustrates how to use the + <code>cpufeatures</code> library to check CPU features and then provide an optimized + code path using NEON instrinsics, if supported by the CPU.</li> + + <li>Lets you generate machine code for either or both of the instruction sets supported + by the NDK. For example, you can build for both ARMv5 and ARMv7-A architectures at the + same time and have everything stored to your application's final + <code>.apk</code>.</li> + + <li>To ensure that your applications are available to users only if their devices are + capable of running them, Google Play now filters applications based on the + instruction set information included in your application — no action is needed on + your part to enable the filtering. Additionally, the Android system itself also checks + your application at install time and allows the installation to continue only if the + application provides a library that is compiled for the device's CPU architecture.</li> + + <li>Adds support for Android 2.2, including a new stable API for accessing the pixel + buffers of {@link android.graphics.Bitmap} objects from native code.</li> + </ul> + </dd> + </dl> + </div> + </div> + +<div class="toggle-content closed"> + <p><a href="#" onclick="return toggleContent(this)"> + <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" + alt="">Android NDK, Revision 3</a> <em>(March 2010)</em> + </p> + + <div class="toggle-content-toggleme"> + <dl> + <dt>General notes:</dt> + + <dd> + <ul> + <li>Adds OpenGL ES 2.0 native library support.</li> + + <li>Adds a sample application,<code>hello-gl2</code>, that illustrates the use of + OpenGL ES 2.0 vertex and fragment shaders.</li> + + <li>The toolchain binaries have been refreshed for this release with GCC 4.4.0, which + should generate slightly more compact and efficient machine code than the previous one + (4.2.1). The NDK also still provides the 4.2.1 binaries, which you can optionally use + to build your machine code.</li> + </ul> + </dd> + </dl> + </div> + </div> + +<div class="toggle-content closed"> + <p><a href="#" onclick="return toggleContent(this)"> + <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" + alt="">Android NDK, Revision 2</a> <em>(September 2009)</em> + </p> + + <div class="toggle-content-toggleme"> + <p>Originally released as "Android 1.6 NDK, Release 1".</p> + + <dl> + <dt>General notes:</dt> + + <dd> + <ul> + <li>Adds OpenGL ES 1.1 native library support.</li> + + <li>Adds a sample application, <code>san-angeles</code>, that renders 3D graphics + through the native OpenGL ES APIs, while managing activity lifecycle with a {@link + android.opengl.GLSurfaceView} object.</li> + </ul> + </dd> + </dl> + </div> + </div> + +<div class="toggle-content closed"> + <p><a href="#" onclick="return toggleContent(this)"> + <img src="{@docRoot}assets/images/triangle-closed.png" class="toggle-content-img" + alt="">Android NDK, Revision 1</a> <em>(June 2009)</em> + </p> + + <div class="toggle-content-toggleme"> + <p>Originally released as "Android 1.5 NDK, Release 1".</p> + + <dl> + <dt>General notes:</dt> + + <dd> + <ul> + <li>Includes compiler support (GCC) for ARMv5TE instructions, including Thumb-1 + instructions.</li> + + <li>Includes system headers for stable native APIs, documentation, and sample + applications.</li> + </ul> + </dd> + </dl> + </div> + </div> + + + + + +<!-- ####################### END OF RELEASE NOTES ####################### --> |