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74 lines
3.4 KiB
HTML
74 lines
3.4 KiB
HTML
4 years ago
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<html lang="en">
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<head>
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<title>Expressions - Untitled</title>
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<meta http-equiv="Content-Type" content="text/html">
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<meta name="description" content="Untitled">
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<meta name="generator" content="makeinfo 4.13">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="Scripts.html#Scripts" title="Scripts">
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<link rel="prev" href="VERSION.html#VERSION" title="VERSION">
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<link rel="next" href="Implicit-Linker-Scripts.html#Implicit-Linker-Scripts" title="Implicit Linker Scripts">
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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 Binutils)
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version 2.26.
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Copyright (C) 1991-2015 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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<meta http-equiv="Content-Style-Type" content="text/css">
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<style type="text/css"><!--
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pre.display { font-family:inherit }
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pre.format { font-family:inherit }
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pre.smalldisplay { font-family:inherit; font-size:smaller }
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pre.smallformat { font-family:inherit; font-size:smaller }
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pre.smallexample { font-size:smaller }
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pre.smalllisp { font-size:smaller }
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span.sc { font-variant:small-caps }
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span.roman { font-family:serif; font-weight:normal; }
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span.sansserif { font-family:sans-serif; font-weight:normal; }
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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="Expressions"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="Implicit-Linker-Scripts.html#Implicit-Linker-Scripts">Implicit Linker Scripts</a>,
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Previous: <a rel="previous" accesskey="p" href="VERSION.html#VERSION">VERSION</a>,
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Up: <a rel="up" accesskey="u" href="Scripts.html#Scripts">Scripts</a>
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<hr>
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</div>
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<h3 class="section">3.10 Expressions in Linker Scripts</h3>
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<p><a name="index-expressions-521"></a><a name="index-arithmetic-522"></a>The syntax for expressions in the linker script language is identical to
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that of C expressions. All expressions are evaluated as integers. All
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expressions are evaluated in the same size, which is 32 bits if both the
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host and target are 32 bits, and is otherwise 64 bits.
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<p>You can use and set symbol values in expressions.
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<p>The linker defines several special purpose builtin functions for use in
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expressions.
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<ul class="menu">
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<li><a accesskey="1" href="Constants.html#Constants">Constants</a>: Constants
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<li><a accesskey="2" href="Symbolic-Constants.html#Symbolic-Constants">Symbolic Constants</a>: Symbolic constants
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<li><a accesskey="3" href="Symbols.html#Symbols">Symbols</a>: Symbol Names
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<li><a accesskey="4" href="Orphan-Sections.html#Orphan-Sections">Orphan Sections</a>: Orphan Sections
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<li><a accesskey="5" href="Location-Counter.html#Location-Counter">Location Counter</a>: The Location Counter
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<li><a accesskey="6" href="Operators.html#Operators">Operators</a>: Operators
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<li><a accesskey="7" href="Evaluation.html#Evaluation">Evaluation</a>: Evaluation
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<li><a accesskey="8" href="Expression-Section.html#Expression-Section">Expression Section</a>: The Section of an Expression
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<li><a accesskey="9" href="Builtin-Functions.html#Builtin-Functions">Builtin Functions</a>: Builtin Functions
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</ul>
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</body></html>
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