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8353009: Improve documentation for Windows AArch64 builds

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Reviewed-by: erikj, ihse
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Saint Wesonga 2025-04-17 13:59:44 +00:00 committed by Magnus Ihse Bursie
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commit 86f3eafade
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14
doc/building.html
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@ -1722,6 +1722,20 @@ packages in the sysroot, configure the build with
--with-devkit=$DEVKIT \
--with-sysroot=$SYSROOT</code></pre>
<p>and run <code>make</code> normally.</p>
<h4 id="building-for-windows-aarch64">Building for Windows AArch64</h4>
<p>The Visual Studio Build Tools can be used for building the JDK
without a full Visual Studio installation. To set up the Visual Studio
2022 Build Tools on a Windows AArch64 machine for a native build, launch
the installer as follows in a Windows command prompt:</p>
<pre><code>vs_buildtools.exe --quiet --wait --norestart --nocache ^
--installPath &quot;%ProgramFiles(x86)%\Microsoft Visual Studio\2022\BuildTools&quot; ^
--add Microsoft.VisualStudio.Component.VC.CoreBuildTools ^
--add Microsoft.VisualStudio.Component.VC.Tools.ARM64 ^
--add Microsoft.VisualStudio.Component.Windows11SDK.22621</code></pre>
<p>To generate Windows AArch64 builds using Cygwin on a Windows x64
machine, you must set the proper target platform by adding
<code>--openjdk-target=aarch64-unknown-cygwin</code> to your configure
command line.</p>
<h2 id="build-performance">Build Performance</h2>
<p>Building the JDK requires a lot of horsepower. Some of the build
tools can be adjusted to utilize more or less of resources such as

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doc/building.md
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@ -1457,6 +1457,24 @@ sh ./configure --with-jvm-variants=server \
and run `make` normally.
#### Building for Windows AArch64
The Visual Studio Build Tools can be used for building the JDK without a full
Visual Studio installation. To set up the Visual Studio 2022 Build Tools on a
Windows AArch64 machine for a native build, launch the installer as follows
in a Windows command prompt:
```
vs_buildtools.exe --quiet --wait --norestart --nocache ^
--installPath "%ProgramFiles(x86)%\Microsoft Visual Studio\2022\BuildTools" ^
--add Microsoft.VisualStudio.Component.VC.CoreBuildTools ^
--add Microsoft.VisualStudio.Component.VC.Tools.ARM64 ^
--add Microsoft.VisualStudio.Component.Windows11SDK.22621
```
To generate Windows AArch64 builds using Cygwin on a Windows x64 machine,
you must set the proper target platform by adding
`--openjdk-target=aarch64-unknown-cygwin` to your configure command line.
## Build Performance
Building the JDK requires a lot of horsepower. Some of the build tools can be