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@@ -1518,12 +1518,19 @@ make<span class="w"> </span><span class="nv">TARGET</span><span class="o">=</spa |
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Note: using <code>TARGET=CORTEXA57</code> in place of <code>ARMV8</code> will pick up better |
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optimized routines. Implementations for the <code>CORTEXA57</code> target are compatible |
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with all other <code>ARMV8</code> targets.</p> |
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<p>Note: for NDK 23b, something as simple as: |
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<p>Note: for NDK 23b and later, something as simple as: |
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<div class="highlight"><pre><span></span><code><span class="nb">export</span><span class="w"> </span><span class="nv">PATH</span><span class="o">=</span>/opt/android-ndk-r23b/toolchains/llvm/prebuilt/linux-x86_64/bin/:<span class="nv">$PATH</span> |
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make<span class="w"> </span><span class="nv">HOSTCC</span><span class="o">=</span>gcc<span class="w"> </span><span class="nv">CC</span><span class="o">=</span>/opt/android-ndk-r23b/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android31-clang<span class="w"> </span><span class="nv">ONLY_CBLAS</span><span class="o">=</span><span class="m">1</span><span class="w"> </span><span class="nv">TARGET</span><span class="o">=</span>ARMV8 |
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make<span class="w"> </span><span class="nv">HOSTCC</span><span class="o">=</span>gcc<span class="w"> </span><span class="nv">CC</span><span class="o">=</span>/opt/android-ndk-r23b/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android31-clang<span class="w"> </span><span class="nv">ONLY_CBLAS</span><span class="o">=</span><span class="m">1</span><span class="w"> </span><span class="nv">TARGET</span><span class="o">=</span>ARMV8<span class="w"> </span><span class="nv">RANLIB</span><span class="o">=</span><span class="nb">echo</span> |
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</code></pre></div> |
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appears to be sufficient on Linux. On OSX, setting AR to the ar provided in the |
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"bin" path of the NDK (probably <code>llvm-ar</code>) is also necessary.</p> |
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<p>If you prefer building with CMake, running |
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<div class="highlight"><pre><span></span><code>cmake<span class="w"> </span>-DANDROID_ABI<span class="o">=</span>arm64-v8a<span class="w"> </span>-DTARGET<span class="o">=</span>ARMV8<span class="w"> </span>-DCMAKE_TOOLCHAIN_FILE<span class="o">=</span>/opt/android-ndk-r27/build/cmake/android.toolchain.cmake<span class="w"> </span>-DNOFORTRAN<span class="o">=</span><span class="m">1</span><span class="w"> </span>-DANDROID_PLATFORM<span class="o">=</span>android-23<span class="w"> </span>.. |
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cmake<span class="w"> </span>--build<span class="w"> </span>. |
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</code></pre></div> |
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in your build directory should work (be sure to adjust the toolchain_file argument according to where you installed the NDK, and the ANDROID_PLATFORM |
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according to the minimum version of Android you want to support. (If you leave out the ANDROID_PLATFORM parameter, the build will fail with an error |
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message about a missing declaration or missing header file complex.h)</p> |
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<details class="note"> |
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<summary>Alternative build script for 3 architectures</summary> |
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<p>This script will build OpenBLAS for 3 architecture (<code>ARMV7</code>, <code>ARMV8</code>, |
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@@ -1731,7 +1738,7 @@ provides one implementation of <code>malloc</code> for embedded platforms.</p> |
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<span class="md-icon" title="Last update"> |
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M21 13.1c-.1 0-.3.1-.4.2l-1 1 2.1 2.1 1-1c.2-.2.2-.6 0-.8l-1.3-1.3c-.1-.1-.2-.2-.4-.2m-1.9 1.8-6.1 6V23h2.1l6.1-6.1zM12.5 7v5.2l4 2.4-1 1L11 13V7zM11 21.9c-5.1-.5-9-4.8-9-9.9C2 6.5 6.5 2 12 2c5.3 0 9.6 4.1 10 9.3-.3-.1-.6-.2-1-.2s-.7.1-1 .2C19.6 7.2 16.2 4 12 4c-4.4 0-8 3.6-8 8 0 4.1 3.1 7.5 7.1 7.9l-.1.2z"/></svg> |
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</span> |
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<span class="git-revision-date-localized-plugin git-revision-date-localized-plugin-date" title="January 26, 2025 17:36:58 UTC">January 26, 2025</span> |
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<span class="git-revision-date-localized-plugin git-revision-date-localized-plugin-date" title="July 15, 2025 16:25:55 UTC">July 15, 2025</span> |
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</span> |
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