72 lines
2.8 KiB
HTML
72 lines
2.8 KiB
HTML
|
<html lang="en">
|
||
|
|
<head>
|
||
|
|
<title>HIDDEN - Untitled</title>
|
||
|
|
<meta http-equiv="Content-Type" content="text/html">
|
||
|
|
<meta name="description" content="Untitled">
|
||
|
|
<meta name="generator" content="makeinfo 4.13">
|
||
|
|
<link title="Top" rel="start" href="index.html#Top">
|
||
|
|
<link rel="up" href="Assignments.html#Assignments" title="Assignments">
|
||
|
|
<link rel="prev" href="Simple-Assignments.html#Simple-Assignments" title="Simple Assignments">
|
||
|
|
<link rel="next" href="PROVIDE.html#PROVIDE" title="PROVIDE">
|
||
|
|
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
|
||
|
|
<!--
|
||
|
|
This file documents the GNU linker LD
|
||
|
|
(GNU Toolchain for the A-profile Architecture 9.2-2019.12 (arm-9.10))
|
||
|
|
version 2.33.1.
|
||
|
|
|
||
|
|
Copyright (C) 1991-2019 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
Permission is granted to copy, distribute and/or modify this document
|
||
|
|
under the terms of the GNU Free Documentation License, Version 1.3
|
||
|
|
or any later version published by the Free Software Foundation;
|
||
|
|
with no Invariant Sections, with no Front-Cover Texts, and with no
|
||
|
|
Back-Cover Texts. A copy of the license is included in the
|
||
|
|
section entitled ``GNU Free Documentation License''.-->
|
||
|
|
<meta http-equiv="Content-Style-Type" content="text/css">
|
||
|
|
<style type="text/css"><!--
|
||
|
|
pre.display { font-family:inherit }
|
||
|
|
pre.format { font-family:inherit }
|
||
|
|
pre.smalldisplay { font-family:inherit; font-size:smaller }
|
||
|
|
pre.smallformat { font-family:inherit; font-size:smaller }
|
||
|
|
pre.smallexample { font-size:smaller }
|
||
|
|
pre.smalllisp { font-size:smaller }
|
||
|
|
span.sc { font-variant:small-caps }
|
||
|
|
span.roman { font-family:serif; font-weight:normal; }
|
||
|
|
span.sansserif { font-family:sans-serif; font-weight:normal; }
|
||
|
|
--></style>
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
<div class="node">
|
||
|
|
<a name="HIDDEN"></a>
|
||
|
|
<p>
|
||
|
|
Next: <a rel="next" accesskey="n" href="PROVIDE.html#PROVIDE">PROVIDE</a>,
|
||
|
|
Previous: <a rel="previous" accesskey="p" href="Simple-Assignments.html#Simple-Assignments">Simple Assignments</a>,
|
||
|
|
Up: <a rel="up" accesskey="u" href="Assignments.html#Assignments">Assignments</a>
|
||
|
|
<hr>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<h4 class="subsection">3.5.2 HIDDEN</h4>
|
||
|
|
|
||
|
|
<p><a name="index-HIDDEN-447"></a>For ELF targeted ports, define a symbol that will be hidden and won't be
|
||
|
|
exported. The syntax is <code>HIDDEN(</code><var>symbol</var><code> = </code><var>expression</var><code>)</code>.
|
||
|
|
|
||
|
|
<p>Here is the example from <a href="Simple-Assignments.html#Simple-Assignments">Simple Assignments</a>, rewritten to use
|
||
|
|
<code>HIDDEN</code>:
|
||
|
|
|
||
|
|
<pre class="smallexample"> HIDDEN(floating_point = 0);
|
||
|
|
SECTIONS
|
||
|
|
{
|
||
|
|
.text :
|
||
|
|
{
|
||
|
|
*(.text)
|
||
|
|
HIDDEN(_etext = .);
|
||
|
|
}
|
||
|
|
HIDDEN(_bdata = (. + 3) & ~ 3);
|
||
|
|
.data : { *(.data) }
|
||
|
|
}
|
||
|
|
</pre>
|
||
|
|
<p class="noindent">In this case none of the three symbols will be visible outside this module.
|
||
|
|
|
||
|
|
</body></html>
|
||
|
|
|