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| <title>Debugging with GDB: Running Configure</title> |
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| <a name="Running-Configure"></a> |
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| Next: <a href="Separate-Objdir.html#Separate-Objdir" accesskey="n" rel="next">Separate Objdir</a>, Previous: <a href="Requirements.html#Requirements" accesskey="p" rel="prev">Requirements</a>, Up: <a href="Installing-GDB.html#Installing-GDB" accesskey="u" rel="up">Installing GDB</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> |
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| <hr> |
| <a name="Invoking-the-GDB-configure-Script"></a> |
| <h3 class="section">C.2 Invoking the <small>GDB</small> <samp>configure</samp> Script</h3> |
| <a name="index-configuring-GDB"></a> |
| <p><small>GDB</small> comes with a <samp>configure</samp> script that automates the process |
| of preparing <small>GDB</small> for installation; you can then use <code>make</code> to |
| build the <code>gdb</code> program. |
| </p> |
| <p>The <small>GDB</small> distribution includes all the source code you need for |
| <small>GDB</small> in a single directory, whose name is usually composed by |
| appending the version number to ‘<samp>gdb</samp>’. |
| </p> |
| <p>For example, the <small>GDB</small> version 7.10.1.20160210-cvs distribution is in the |
| <samp>gdb-7.10.1.20160210-cvs</samp> directory. That directory contains: |
| </p> |
| <dl compact="compact"> |
| <dt><code>gdb-7.10.1.20160210-cvs/configure <span class="roman">(and supporting files)</span></code></dt> |
| <dd><p>script for configuring <small>GDB</small> and all its supporting libraries |
| </p> |
| </dd> |
| <dt><code>gdb-7.10.1.20160210-cvs/gdb</code></dt> |
| <dd><p>the source specific to <small>GDB</small> itself |
| </p> |
| </dd> |
| <dt><code>gdb-7.10.1.20160210-cvs/bfd</code></dt> |
| <dd><p>source for the Binary File Descriptor library |
| </p> |
| </dd> |
| <dt><code>gdb-7.10.1.20160210-cvs/include</code></dt> |
| <dd><p><small>GNU</small> include files |
| </p> |
| </dd> |
| <dt><code>gdb-7.10.1.20160210-cvs/libiberty</code></dt> |
| <dd><p>source for the ‘<samp>-liberty</samp>’ free software library |
| </p> |
| </dd> |
| <dt><code>gdb-7.10.1.20160210-cvs/opcodes</code></dt> |
| <dd><p>source for the library of opcode tables and disassemblers |
| </p> |
| </dd> |
| <dt><code>gdb-7.10.1.20160210-cvs/readline</code></dt> |
| <dd><p>source for the <small>GNU</small> command-line interface |
| </p> |
| </dd> |
| <dt><code>gdb-7.10.1.20160210-cvs/glob</code></dt> |
| <dd><p>source for the <small>GNU</small> filename pattern-matching subroutine |
| </p> |
| </dd> |
| <dt><code>gdb-7.10.1.20160210-cvs/mmalloc</code></dt> |
| <dd><p>source for the <small>GNU</small> memory-mapped malloc package |
| </p></dd> |
| </dl> |
| |
| <p>The simplest way to configure and build <small>GDB</small> is to run <samp>configure</samp> |
| from the <samp>gdb-<var>version-number</var></samp> source directory, which in |
| this example is the <samp>gdb-7.10.1.20160210-cvs</samp> directory. |
| </p> |
| <p>First switch to the <samp>gdb-<var>version-number</var></samp> source directory |
| if you are not already in it; then run <samp>configure</samp>. Pass the |
| identifier for the platform on which <small>GDB</small> will run as an |
| argument. |
| </p> |
| <p>For example: |
| </p> |
| <div class="smallexample"> |
| <pre class="smallexample">cd gdb-7.10.1.20160210-cvs |
| ./configure <var>host</var> |
| make |
| </pre></div> |
| |
| <p>where <var>host</var> is an identifier such as ‘<samp>sun4</samp>’ or |
| ‘<samp>decstation</samp>’, that identifies the platform where <small>GDB</small> will run. |
| (You can often leave off <var>host</var>; <samp>configure</samp> tries to guess the |
| correct value by examining your system.) |
| </p> |
| <p>Running ‘<samp>configure <var>host</var></samp>’ and then running <code>make</code> builds the |
| <samp>bfd</samp>, <samp>readline</samp>, <samp>mmalloc</samp>, and <samp>libiberty</samp> |
| libraries, then <code>gdb</code> itself. The configured source files, and the |
| binaries, are left in the corresponding source directories. |
| </p> |
| <p><samp>configure</samp> is a Bourne-shell (<code>/bin/sh</code>) script; if your |
| system does not recognize this automatically when you run a different |
| shell, you may need to run <code>sh</code> on it explicitly: |
| </p> |
| <div class="smallexample"> |
| <pre class="smallexample">sh configure <var>host</var> |
| </pre></div> |
| |
| <p>If you run <samp>configure</samp> from a directory that contains source |
| directories for multiple libraries or programs, such as the |
| <samp>gdb-7.10.1.20160210-cvs</samp> source directory for version 7.10.1.20160210-cvs, |
| <samp>configure</samp> |
| creates configuration files for every directory level underneath (unless |
| you tell it not to, with the ‘<samp>--norecursion</samp>’ option). |
| </p> |
| <p>You should run the <samp>configure</samp> script from the top directory in the |
| source tree, the <samp>gdb-<var>version-number</var></samp> directory. If you run |
| <samp>configure</samp> from one of the subdirectories, you will configure only |
| that subdirectory. That is usually not what you want. In particular, |
| if you run the first <samp>configure</samp> from the <samp>gdb</samp> subdirectory |
| of the <samp>gdb-<var>version-number</var></samp> directory, you will omit the |
| configuration of <samp>bfd</samp>, <samp>readline</samp>, and other sibling |
| directories of the <samp>gdb</samp> subdirectory. This leads to build errors |
| about missing include files such as <samp>bfd/bfd.h</samp>. |
| </p> |
| <p>You can install <code>gdb</code> anywhere; it has no hardwired paths. |
| However, you should make sure that the shell on your path (named by |
| the ‘<samp>SHELL</samp>’ environment variable) is publicly readable. Remember |
| that <small>GDB</small> uses the shell to start your program—some systems refuse to |
| let <small>GDB</small> debug child processes whose programs are not readable. |
| </p> |
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| Next: <a href="Separate-Objdir.html#Separate-Objdir" accesskey="n" rel="next">Separate Objdir</a>, Previous: <a href="Requirements.html#Requirements" accesskey="p" rel="prev">Requirements</a>, Up: <a href="Installing-GDB.html#Installing-GDB" accesskey="u" rel="up">Installing GDB</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> |
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