mirror of
https://github.com/yasuhirokimura/db18
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Yasuhiro KIMURA
140 lines
5.5 KiB
HTML
140 lines
5.5 KiB
HTML
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<title>Cross-Compiling on Unix</title>
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<link rel="stylesheet" href="gettingStarted.css" type="text/css" />
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<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
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<link rel="start" href="index.html" title="Berkeley DB Installation and Build Guide" />
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<link rel="up" href="build_unix.html" title="Chapter 5. Building Berkeley DB for UNIX/POSIX" />
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<link rel="prev" href="build_unix_flags.html" title="Changing compile or load options" />
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<link rel="next" href="build_unix_install.html" title="Installing Berkeley DB" />
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</head>
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<body>
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<div xmlns="" class="navheader">
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<div class="libver">
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<p>Library Version 18.1.40</p>
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</div>
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<table width="100%" summary="Navigation header">
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<tr>
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<th colspan="3" align="center">Cross-Compiling on
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Unix</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="build_unix_flags.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 5. Building Berkeley DB for UNIX/POSIX
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</th>
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<td width="20%" align="right"> <a accesskey="n" href="build_unix_install.html">Next</a></td>
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</tr>
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</table>
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<hr />
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</div>
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<div class="sect1" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h2 class="title" style="clear: both"><a id="cross_compile_unix"></a>Cross-Compiling on
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Unix</h2>
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</div>
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</div>
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</div>
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<p>
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The purpose of cross-compiling is to build a Berkeley DB
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library on one platform that is to be used on a different
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platform. This section demonstrates how to build a library
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compatible with the ARM platform from a 32-bit x86 Linux
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platform. You will need to adjust the build tools and options
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to match your particular platforms.
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</p>
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<div class="orderedlist">
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<ol type="1">
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<li>
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<p>
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Download, install, and test a toolchain that can
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build the desired target binaries. In this example, we
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use the <code class="literal">arm-linux-gnueabi-gcc</code>
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package.
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</p>
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</li>
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<li>
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<p>
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Decide on your configuration options, and set up
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your environment to use the appropriate compiler and
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compiler tools. It is often easiest to set this up as
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a small shell script. For example:
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</p>
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<pre class="programlisting">#!/bin/sh -f
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env \
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CC=/usr/bin/arm-linux-gnueabi-gcc \
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STRIP=/usr/bin/arm-linux-gnueabi-strip \
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../dist/configure \
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--build=i686-pc-linux-gnu \
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--host=arm-linux-gnueabi \
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--enable-java \
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--enable-sql \
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--enable-jdbc \
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--enable-smallbuild \
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--enable-shared \
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--enable-stripped_messages \
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--prefix=$HOME/ARM-linux/install \
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$* </pre>
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<p>
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The <code class="literal">--build</code> flag indicates the
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system on which you are compiling and the
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<code class="literal">--host</code> flag indicates the
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target platform. Adjust or omit the
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<code class="literal">--enable</code> and
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<code class="literal">--prefix</code> flag settings as
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dictated by your own needs.
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</p>
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</li>
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<li>
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<p>
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Unpack your Berkeley DB distribution and go to the
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<code class="literal">build_unix</code> directory.
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Alternatively, you may create a more
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appropriately-named directory at the same level and
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build in it. For example,
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<code class="literal">build_arm</code>.
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</p>
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</li>
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<li>
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<p>
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In your build directory, configure by executing
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your script, then <code class="literal">make</code> and
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<code class="literal">make install</code>. Review any
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compiler warnings and fix if necessary, repeating the
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<code class="literal">configure</code> and
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<code class="literal">make</code> steps until you are
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satisfied. The resulting libraries and executables can
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then be transferred to your target system.
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</p>
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</li>
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</ol>
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</div>
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</div>
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<div class="navfooter">
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<hr />
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<table width="100%" summary="Navigation footer">
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<tr>
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<td width="40%" align="left"><a accesskey="p" href="build_unix_flags.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="build_unix.html">Up</a>
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</td>
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<td width="40%" align="right"> <a accesskey="n" href="build_unix_install.html">Next</a></td>
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</tr>
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<tr>
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<td width="40%" align="left" valign="top">Changing compile or load
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options </td>
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<td width="20%" align="center">
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<a accesskey="h" href="index.html">Home</a>
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</td>
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<td width="40%" align="right" valign="top"> Installing Berkeley
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DB</td>
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</tr>
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</table>
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</div>
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</body>
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</html>
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