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<h2 class="chapter">5 ranlib</h2>
<p><a name="index-ranlib-110"></a><a name="index-archive-contents-111"></a><a name="index-symbol-index-112"></a>
<!-- man title ranlib generate index to archive. -->
<pre class="smallexample"> <!-- man begin SYNOPSIS ranlib -->
ranlib [<samp><span class="option">--plugin</span></samp> <var>name</var>] [<samp><span class="option">-DhHvVt</span></samp>] <var>archive</var>
<!-- man end -->
</pre>
<!-- man begin DESCRIPTION ranlib -->
<p><samp><span class="command">ranlib</span></samp> generates an index to the contents of an archive and
stores it in the archive. The index lists each symbol defined by a
member of an archive that is a relocatable object file.
<p>You may use &lsquo;<samp><span class="samp">nm -s</span></samp>&rsquo; or &lsquo;<samp><span class="samp">nm --print-armap</span></samp>&rsquo; to list this index.
<p>An archive with such an index speeds up linking to the library and
allows routines in the library to call each other without regard to
their placement in the archive.
<p>The <span class="sc">gnu</span> <samp><span class="command">ranlib</span></samp> program is another form of <span class="sc">gnu</span> <samp><span class="command">ar</span></samp>; running
<samp><span class="command">ranlib</span></samp> is completely equivalent to executing &lsquo;<samp><span class="samp">ar -s</span></samp>&rsquo;.
See <a href="ar.html#ar">ar</a>.
<!-- man end -->
<!-- man begin OPTIONS ranlib -->
<dl>
<dt><samp><span class="env">-h</span></samp><dt><samp><span class="env">-H</span></samp><dt><samp><span class="env">--help</span></samp><dd>Show usage information for <samp><span class="command">ranlib</span></samp>.
<br><dt><samp><span class="env">-v</span></samp><dt><samp><span class="env">-V</span></samp><dt><samp><span class="env">--version</span></samp><dd>Show the version number of <samp><span class="command">ranlib</span></samp>.
<br><dt><samp><span class="env">-D</span></samp><dd><a name="index-deterministic-archives-113"></a><a name="index-g_t_002d_002denable_002ddeterministic_002darchives-114"></a>Operate in <em>deterministic</em> mode. The symbol map archive member's
header will show zero for the UID, GID, and timestamp. When this
option is used, multiple runs will produce identical output files.
<p>This is the default unless <samp><span class="file">binutils</span></samp> was configured with
<samp><span class="option">--enable-deterministic-archives</span></samp>.
<br><dt><samp><span class="env">-t</span></samp><dd>Update the timestamp of the symbol map of an archive.
<br><dt><samp><span class="env">-U</span></samp><dd><a name="index-deterministic-archives-115"></a><a name="index-g_t_002d_002denable_002ddeterministic_002darchives-116"></a>Do <em>not</em> operate in <em>deterministic</em> mode. This is the
inverse of the &lsquo;<samp><span class="samp">-D</span></samp>&rsquo; option, above: the archive index will get
actual UID, GID, timestamp, and file mode values.
<p>This is the default unless <samp><span class="file">binutils</span></samp> was configured with
<samp><span class="option">--enable-deterministic-archives</span></samp>.
</dl>
<!-- man end -->
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