am b4fde3c6: am 3ad97ea7: Merge "docs: NDK r9b Release Notes" into klp-dev

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page.title=Android NDK

  <p>

    <a href="#" onclick="return toggleContent(this)"> <img

      src="{@docRoot}assets/images/triangle-opened.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 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">

  <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">

          <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:

          <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