72 lines
2.8 KiB
HTML
72 lines
2.8 KiB
HTML
<html lang="en">
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<head>
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<title>HIDDEN - Untitled</title>
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<meta name="description" content="Untitled">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="Assignments.html#Assignments" title="Assignments">
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<link rel="prev" href="Simple-Assignments.html#Simple-Assignments" title="Simple Assignments">
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<link rel="next" href="PROVIDE.html#PROVIDE" title="PROVIDE">
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<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
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<!--
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This file documents the GNU linker LD
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(GNU Toolchain for the A-profile Architecture 9.2-2019.12 (arm-9.10))
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version 2.33.1.
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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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with no Invariant Sections, with no Front-Cover Texts, and with no
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Back-Cover Texts. A copy of the license is included in the
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section entitled ``GNU Free Documentation License''.-->
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--></style>
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</head>
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<body>
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<div class="node">
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<a name="HIDDEN"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="PROVIDE.html#PROVIDE">PROVIDE</a>,
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Previous: <a rel="previous" accesskey="p" href="Simple-Assignments.html#Simple-Assignments">Simple Assignments</a>,
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Up: <a rel="up" accesskey="u" href="Assignments.html#Assignments">Assignments</a>
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<hr>
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</div>
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<h4 class="subsection">3.5.2 HIDDEN</h4>
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<p><a name="index-HIDDEN-447"></a>For ELF targeted ports, define a symbol that will be hidden and won't be
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exported. The syntax is <code>HIDDEN(</code><var>symbol</var><code> = </code><var>expression</var><code>)</code>.
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<p>Here is the example from <a href="Simple-Assignments.html#Simple-Assignments">Simple Assignments</a>, rewritten to use
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<code>HIDDEN</code>:
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<pre class="smallexample"> HIDDEN(floating_point = 0);
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SECTIONS
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{
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.text :
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{
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*(.text)
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HIDDEN(_etext = .);
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}
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HIDDEN(_bdata = (. + 3) & ~ 3);
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.data : { *(.data) }
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}
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</pre>
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<p class="noindent">In this case none of the three symbols will be visible outside this module.
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</body></html>
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