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| <title>GNU Binary Utilities: ranlib</title> |
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| <a name="ranlib-1"></a> |
| <h2 class="chapter">5 ranlib</h2> |
| |
| <a name="index-ranlib-1"></a> |
| <a name="index-archive-contents"></a> |
| <a name="index-symbol-index-1"></a> |
| |
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| <div class="smallexample"> |
| <pre class="smallexample">ranlib [<samp>--plugin</samp> <var>name</var>] [<samp>-DhHvVt</samp>] <var>archive</var> |
| </pre></div> |
| |
| |
| <p><code>ranlib</code> 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> |
| <p>You may use ‘<samp>nm -s</samp>’ or ‘<samp>nm --print-armap</samp>’ to list this index. |
| </p> |
| <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> |
| <p>The <small>GNU</small> <code>ranlib</code> program is another form of <small>GNU</small> <code>ar</code>; running |
| <code>ranlib</code> is completely equivalent to executing ‘<samp>ar -s</samp>’. |
| See <a href="ar.html#ar">ar</a>. |
| </p> |
| |
| |
| <dl compact="compact"> |
| <dt><code>-h</code></dt> |
| <dt><code>-H</code></dt> |
| <dt><code>--help</code></dt> |
| <dd><p>Show usage information for <code>ranlib</code>. |
| </p> |
| </dd> |
| <dt><code>-v</code></dt> |
| <dt><code>-V</code></dt> |
| <dt><code>--version</code></dt> |
| <dd><p>Show the version number of <code>ranlib</code>. |
| </p> |
| </dd> |
| <dt><code>-D</code></dt> |
| <dd><a name="index-deterministic-archives-4"></a> |
| <a name="index-_002d_002denable_002ddeterministic_002darchives-4"></a> |
| <p>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> |
| <p>If <samp>binutils</samp> was configured with |
| <samp>--enable-deterministic-archives</samp>, then this mode is on by |
| default. It can be disabled with the ‘<samp>-U</samp>’ option, described |
| below. |
| </p> |
| </dd> |
| <dt><code>-t</code></dt> |
| <dd><p>Update the timestamp of the symbol map of an archive. |
| </p> |
| </dd> |
| <dt><code>-U</code></dt> |
| <dd><a name="index-deterministic-archives-5"></a> |
| <a name="index-_002d_002denable_002ddeterministic_002darchives-5"></a> |
| <p>Do <em>not</em> operate in <em>deterministic</em> mode. This is the |
| inverse of the ‘<samp>-D</samp>’ option, above: the archive index will get |
| actual UID, GID, timestamp, and file mode values. |
| </p> |
| <p>If <samp>binutils</samp> was configured <em>without</em> |
| <samp>--enable-deterministic-archives</samp>, then this mode is on by |
| default. |
| </p> |
| </dd> |
| </dl> |
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