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100 lines
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<html lang="en">
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<title>ranlib - GNU Binary Utilities</title>
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Copyright (C) 1991-2019 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3
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or any later version published by the Free Software Foundation;
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<div class="node">
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<a name="ranlib"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="size.html#size">size</a>,
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Previous: <a rel="previous" accesskey="p" href="objdump.html#objdump">objdump</a>,
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Up: <a rel="up" accesskey="u" href="index.html#Top">Top</a>
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<hr>
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</div>
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<h2 class="chapter">5 ranlib</h2>
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<p><a name="index-ranlib-115"></a><a name="index-archive-contents-116"></a><a name="index-symbol-index-117"></a>
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<!-- man title ranlib generate an index to an archive -->
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<pre class="smallexample"> <!-- man begin SYNOPSIS ranlib -->
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ranlib [<samp><span class="option">--plugin</span></samp> <var>name</var>] [<samp><span class="option">-DhHvVt</span></samp>] <var>archive</var>
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<!-- man end -->
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</pre>
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<!-- man begin DESCRIPTION ranlib -->
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<p><samp><span class="command">ranlib</span></samp> generates an index to the contents of an archive and
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stores it in the archive. The index lists each symbol defined by a
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member of an archive that is a relocatable object file.
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<p>You may use ‘<samp><span class="samp">nm -s</span></samp>’ or ‘<samp><span class="samp">nm --print-armap</span></samp>’ to list this index.
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<p>An archive with such an index speeds up linking to the library and
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allows routines in the library to call each other without regard to
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their placement in the archive.
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<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
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<samp><span class="command">ranlib</span></samp> is completely equivalent to executing ‘<samp><span class="samp">ar -s</span></samp>’.
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See <a href="ar.html#ar">ar</a>.
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<!-- man end -->
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<!-- man begin OPTIONS ranlib -->
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<dl>
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<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>.
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<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>.
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<br><dt><samp><span class="env">-D</span></samp><dd><a name="index-deterministic-archives-118"></a><a name="index-g_t_002d_002denable_002ddeterministic_002darchives-119"></a>Operate in <em>deterministic</em> mode. The symbol map archive member's
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header will show zero for the UID, GID, and timestamp. When this
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option is used, multiple runs will produce identical output files.
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<p>If <samp><span class="file">binutils</span></samp> was configured with
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<samp><span class="option">--enable-deterministic-archives</span></samp>, then this mode is on by
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default. It can be disabled with the ‘<samp><span class="samp">-U</span></samp>’ option, described
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below.
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<br><dt><samp><span class="env">-t</span></samp><dd>Update the timestamp of the symbol map of an archive.
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<br><dt><samp><span class="env">-U</span></samp><dd><a name="index-deterministic-archives-120"></a><a name="index-g_t_002d_002denable_002ddeterministic_002darchives-121"></a>Do <em>not</em> operate in <em>deterministic</em> mode. This is the
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inverse of the ‘<samp><span class="samp">-D</span></samp>’ option, above: the archive index will get
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actual UID, GID, timestamp, and file mode values.
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<p>If <samp><span class="file">binutils</span></samp> was configured <em>without</em>
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<samp><span class="option">--enable-deterministic-archives</span></samp>, then this mode is on by
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default.
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</dl>
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<!-- man end -->
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</body></html>
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