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voitylov committed Feb 17, 2022
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18 changes: 18 additions & 0 deletions doc/building.html
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Expand Up @@ -75,6 +75,7 @@ <h1 class="title">Building the JDK</h1>
<li><a href="#native-libraries">Native Libraries</a></li>
<li><a href="#creating-and-using-sysroots-with-qemu-deboostrap">Creating And Using Sysroots With qemu-deboostrap</a></li>
<li><a href="#building-for-armaarch64">Building for ARM/aarch64</a></li>
<li><a href="#building-for-musl">Building for musl</a></li>
<li><a href="#verifying-the-build">Verifying the Build</a></li>
</ul></li>
<li><a href="#build-performance">Build Performance</a><ul>
Expand Down Expand Up @@ -224,6 +225,8 @@ <h3 id="linux">Linux</h3>
<pre><code>sudo apt-get install build-essential</code></pre>
<p>For rpm-based distributions (Fedora, Red Hat, etc), try this:</p>
<pre><code>sudo yum groupinstall &quot;Development Tools&quot;</code></pre>
<p>For Alpine Linux, aside from basic tooling, install the GNU versions of some programs:</p>
<pre><code>sudo apk add build-base bash grep zip</code></pre>
<h3 id="aix">AIX</h3>
<p>The regular builds by SAP is using AIX version 7.1, but AIX 5.3 is also supported. See the <a href="http://cr.openjdk.java.net/~simonis/ppc-aix-port">OpenJDK PowerPC Port Status Page</a> for details.</p>
<h2 id="native-compiler-toolchain-requirements">Native Compiler (Toolchain) Requirements</h2>
Expand Down Expand Up @@ -380,6 +383,7 @@ <h3 id="freetype">FreeType</h3>
<ul>
<li>To install on an apt-based Linux, try running <code>sudo apt-get install libfreetype6-dev</code>.</li>
<li>To install on an rpm-based Linux, try running <code>sudo yum install freetype-devel</code>.</li>
<li>To install on Alpine Linux, try running <code>sudo apk add freetype-dev</code>.</li>
<li>To install on Solaris, try running <code>pkg install system/library/freetype-2</code>.</li>
</ul>
<p>Use <code>--with-freetype-include=&lt;path&gt;</code> and <code>--with-freetype-lib=&lt;path&gt;</code> if <code>configure</code> does not automatically locate the platform FreeType files.</p>
Expand All @@ -388,6 +392,7 @@ <h3 id="cups">CUPS</h3>
<ul>
<li>To install on an apt-based Linux, try running <code>sudo apt-get install libcups2-dev</code>.</li>
<li>To install on an rpm-based Linux, try running <code>sudo yum install cups-devel</code>.</li>
<li>To install on Alpine Linux, try running <code>sudo apk add cups-dev</code>.</li>
<li>To install on Solaris, try running <code>pkg install print/cups</code>.</li>
</ul>
<p>Use <code>--with-cups=&lt;path&gt;</code> if <code>configure</code> does not properly locate your CUPS files.</p>
Expand All @@ -396,6 +401,7 @@ <h3 id="x11">X11</h3>
<ul>
<li>To install on an apt-based Linux, try running <code>sudo apt-get install libx11-dev libxext-dev libxrender-dev libxtst-dev libxt-dev</code>.</li>
<li>To install on an rpm-based Linux, try running <code>sudo yum install libXtst-devel libXt-devel libXrender-devel libXi-devel</code>.</li>
<li>To install on Alpine Linux, try running <code>sudo apk add libx11-dev libxext-dev libxrender-dev libxtst-dev libxt-dev</code>.</li>
<li>To install on Solaris, try running <code>pkg install x11/header/x11-protocols x11/library/libice x11/library/libpthread-stubs x11/library/libsm x11/library/libx11 x11/library/libxau x11/library/libxcb x11/library/libxdmcp x11/library/libxevie x11/library/libxext x11/library/libxrender x11/library/libxscrnsaver x11/library/libxtst x11/library/toolkit/libxt</code>.</li>
</ul>
<p>Use <code>--with-x=&lt;path&gt;</code> if <code>configure</code> does not properly locate your X11 files.</p>
Expand All @@ -404,13 +410,15 @@ <h3 id="alsa">ALSA</h3>
<ul>
<li>To install on an apt-based Linux, try running <code>sudo apt-get install libasound2-dev</code>.</li>
<li>To install on an rpm-based Linux, try running <code>sudo yum install alsa-lib-devel</code>.</li>
<li>To install on Alpine Linux, try running <code>sudo apk add alsa-lib-dev</code>.</li>
</ul>
<p>Use <code>--with-alsa=&lt;path&gt;</code> if <code>configure</code> does not properly locate your ALSA files.</p>
<h3 id="libffi">libffi</h3>
<p>libffi, the <a href="http://sourceware.org/libffi">Portable Foreign Function Interface Library</a> is required when building the Zero version of Hotspot.</p>
<ul>
<li>To install on an apt-based Linux, try running <code>sudo apt-get install libffi-dev</code>.</li>
<li>To install on an rpm-based Linux, try running <code>sudo yum install libffi-devel</code>.</li>
<li>To install on Alpine Linux, try running <code>sudo apk add libffi-dev</code>.</li>
</ul>
<p>Use <code>--with-libffi=&lt;path&gt;</code> if <code>configure</code> does not properly locate your libffi files.</p>
<h2 id="build-tools-requirements">Build Tools Requirements</h2>
Expand All @@ -419,6 +427,7 @@ <h3 id="autoconf">Autoconf</h3>
<ul>
<li>To install on an apt-based Linux, try running <code>sudo apt-get install autoconf</code>.</li>
<li>To install on an rpm-based Linux, try running <code>sudo yum install autoconf</code>.</li>
<li>To install on Alpine Linux, try running <code>sudo apk add autoconf</code>.</li>
<li>To install on macOS, try running <code>brew install autoconf</code>.</li>
<li>To install on Windows, try running <code>&lt;path to Cygwin setup&gt;/setup-x86_64 -q -P autoconf</code>.</li>
</ul>
Expand Down Expand Up @@ -761,6 +770,15 @@ <h3 id="creating-and-using-sysroots-with-qemu-deboostrap">Creating And Using Sys
<h3 id="building-for-armaarch64">Building for ARM/aarch64</h3>
<p>A common cross-compilation target is the ARM CPU. When building for ARM, it is useful to set the ABI profile. A number of pre-defined ABI profiles are available using <code>--with-abi-profile</code>: arm-vfp-sflt, arm-vfp-hflt, arm-sflt, armv5-vfp-sflt, armv6-vfp-hflt. Note that soft-float ABIs are no longer properly supported by the JDK.</p>
<p>The JDK contains two different ports for the aarch64 platform, one is the original aarch64 port from the <a href="http://openjdk.java.net/projects/aarch64-port">AArch64 Port Project</a> and one is a 64-bit version of the Oracle contributed ARM port. When targeting aarch64, by the default the original aarch64 port is used. To select the Oracle ARM 64 port, use <code>--with-cpu-port=arm64</code>. Also set the corresponding value (<code>aarch64</code> or <code>arm64</code>) to --with-abi-profile, to ensure a consistent build.</p>
<h3 id="building-for-musl">Building for musl</h3>
<p>Just like it's possible to cross-compile for a different CPU, it's possible to cross-compile for musl libc on a glibc-based <em>build</em> system. A devkit suitable for most target CPU architectures can be obtained from <a href="https://musl.cc">musl.cc</a>. After installing the required packages in the sysroot, configure the build with <code>--openjdk-target</code>:</p>
<pre><code>sh ./configure --with-jvm-variants=server \
--with-boot-jdk=$BOOT_JDK \
--with-build-jdk=$BUILD_JDK \
--openjdk-target=x86_64-unknown-linux-musl \
--with-devkit=$DEVKIT \
--with-sysroot=$SYSROOT</code></pre>
<p>and run <code>make</code> normally.</p>
<h3 id="verifying-the-build">Verifying the Build</h3>
<p>The build will end up in a directory named like <code>build/linux-arm-normal-server-release</code>.</p>
<p>Inside this build output directory, the <code>images/jdk</code> will contain the newly built JDK, for your <em>target</em> system.</p>
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33 changes: 33 additions & 0 deletions doc/building.md
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Expand Up @@ -272,6 +272,13 @@ For rpm-based distributions (Fedora, Red Hat, etc), try this:
sudo yum groupinstall "Development Tools"
```

For Alpine Linux, aside from basic tooling, install the GNU versions of some
programs:

```
sudo apk add build-base bash grep zip
```

### AIX

The regular builds by SAP is using AIX version 7.1, but AIX 5.3 is also
Expand Down Expand Up @@ -465,6 +472,7 @@ rather than bundling the JDK's own copy.
libfreetype6-dev`.
* To install on an rpm-based Linux, try running `sudo yum install
freetype-devel`.
* To install on Alpine Linux, try running `sudo apk add freetype-dev`.
* To install on Solaris, try running `pkg install system/library/freetype-2`.

Use `--with-freetype-include=<path>` and `--with-freetype-lib=<path>`
Expand All @@ -480,6 +488,7 @@ your operating system.
libcups2-dev`.
* To install on an rpm-based Linux, try running `sudo yum install
cups-devel`.
* To install on Alpine Linux, try running `sudo apk add cups-dev`.
* To install on Solaris, try running `pkg install print/cups`.

Use `--with-cups=<path>` if `configure` does not properly locate your CUPS
Expand All @@ -494,6 +503,8 @@ Linux and Solaris.
libx11-dev libxext-dev libxrender-dev libxtst-dev libxt-dev`.
* To install on an rpm-based Linux, try running `sudo yum install
libXtst-devel libXt-devel libXrender-devel libXi-devel`.
* To install on Alpine Linux, try running `sudo apk add libx11-dev
libxext-dev libxrender-dev libxrandr-dev libxtst-dev libxt-dev`.
* To install on Solaris, try running `pkg install x11/header/x11-protocols
x11/library/libice x11/library/libpthread-stubs x11/library/libsm
x11/library/libx11 x11/library/libxau x11/library/libxcb
Expand All @@ -512,6 +523,7 @@ required on Linux. At least version 0.9.1 of ALSA is required.
libasound2-dev`.
* To install on an rpm-based Linux, try running `sudo yum install
alsa-lib-devel`.
* To install on Alpine Linux, try running `sudo apk add alsa-lib-dev`.

Use `--with-alsa=<path>` if `configure` does not properly locate your ALSA
files.
Expand All @@ -526,6 +538,7 @@ Hotspot.
libffi-dev`.
* To install on an rpm-based Linux, try running `sudo yum install
libffi-devel`.
* To install on Alpine Linux, try running `sudo apk add libffi-dev`.

Use `--with-libffi=<path>` if `configure` does not properly locate your libffi
files.
Expand All @@ -541,6 +554,7 @@ platforms. At least version 2.69 is required.
autoconf`.
* To install on an rpm-based Linux, try running `sudo yum install
autoconf`.
* To install on Alpine Linux, try running `sudo apk add autoconf`.
* To install on macOS, try running `brew install autoconf`.
* To install on Windows, try running `<path to Cygwin setup>/setup-x86_64 -q
-P autoconf`.
Expand Down Expand Up @@ -1165,6 +1179,25 @@ original aarch64 port is used. To select the Oracle ARM 64 port, use
`--with-cpu-port=arm64`. Also set the corresponding value (`aarch64` or
`arm64`) to --with-abi-profile, to ensure a consistent build.

### Building for musl

Just like it's possible to cross-compile for a different CPU, it's possible to
cross-compile for musl libc on a glibc-based *build* system.
A devkit suitable for most target CPU architectures can be obtained from
[musl.cc](https://musl.cc). After installing the required packages in the
sysroot, configure the build with `--openjdk-target`:

```
sh ./configure --with-jvm-variants=server \
--with-boot-jdk=$BOOT_JDK \
--with-build-jdk=$BUILD_JDK \
--openjdk-target=x86_64-unknown-linux-musl \
--with-devkit=$DEVKIT \
--with-sysroot=$SYSROOT
```

and run `make` normally.

### Verifying the Build

The build will end up in a directory named like
Expand Down

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