| <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html> |
| <!-- This file documents the GNU linker LD |
| (Linaro_Binutils-2017.01) |
| version 2.24.0. |
| |
| Copyright (C) 1991-2013 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". --> |
| <!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ --> |
| <head> |
| <title>LD: Constants</title> |
| |
| <meta name="description" content="LD: Constants"> |
| <meta name="keywords" content="LD: Constants"> |
| <meta name="resource-type" content="document"> |
| <meta name="distribution" content="global"> |
| <meta name="Generator" content="makeinfo"> |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> |
| <link href="index.html#Top" rel="start" title="Top"> |
| <link href="LD-Index.html#LD-Index" rel="index" title="LD Index"> |
| <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> |
| <link href="Expressions.html#Expressions" rel="up" title="Expressions"> |
| <link href="Symbolic-Constants.html#Symbolic-Constants" rel="next" title="Symbolic Constants"> |
| <link href="Expressions.html#Expressions" rel="prev" title="Expressions"> |
| <style type="text/css"> |
| <!-- |
| a.summary-letter {text-decoration: none} |
| blockquote.smallquotation {font-size: smaller} |
| div.display {margin-left: 3.2em} |
| div.example {margin-left: 3.2em} |
| div.indentedblock {margin-left: 3.2em} |
| div.lisp {margin-left: 3.2em} |
| div.smalldisplay {margin-left: 3.2em} |
| div.smallexample {margin-left: 3.2em} |
| div.smallindentedblock {margin-left: 3.2em; font-size: smaller} |
| div.smalllisp {margin-left: 3.2em} |
| kbd {font-style:oblique} |
| pre.display {font-family: inherit} |
| pre.format {font-family: inherit} |
| pre.menu-comment {font-family: serif} |
| pre.menu-preformatted {font-family: serif} |
| pre.smalldisplay {font-family: inherit; font-size: smaller} |
| pre.smallexample {font-size: smaller} |
| pre.smallformat {font-family: inherit; font-size: smaller} |
| pre.smalllisp {font-size: smaller} |
| span.nocodebreak {white-space:nowrap} |
| span.nolinebreak {white-space:nowrap} |
| span.roman {font-family:serif; font-weight:normal} |
| span.sansserif {font-family:sans-serif; font-weight:normal} |
| ul.no-bullet {list-style: none} |
| --> |
| </style> |
| |
| |
| </head> |
| |
| <body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> |
| <a name="Constants"></a> |
| <div class="header"> |
| <p> |
| Next: <a href="Symbolic-Constants.html#Symbolic-Constants" accesskey="n" rel="next">Symbolic Constants</a>, Up: <a href="Expressions.html#Expressions" accesskey="u" rel="up">Expressions</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="LD-Index.html#LD-Index" title="Index" rel="index">Index</a>]</p> |
| </div> |
| <hr> |
| <a name="Constants-1"></a> |
| <h4 class="subsection">3.10.1 Constants</h4> |
| <a name="index-integer-notation"></a> |
| <a name="index-constants-in-linker-scripts"></a> |
| <p>All constants are integers. |
| </p> |
| <p>As in C, the linker considers an integer beginning with ‘<samp>0</samp>’ to be |
| octal, and an integer beginning with ‘<samp>0x</samp>’ or ‘<samp>0X</samp>’ to be |
| hexadecimal. Alternatively the linker accepts suffixes of ‘<samp>h</samp>’ or |
| ‘<samp>H</samp>’ for hexadecimal, ‘<samp>o</samp>’ or ‘<samp>O</samp>’ for octal, ‘<samp>b</samp>’ or |
| ‘<samp>B</samp>’ for binary and ‘<samp>d</samp>’ or ‘<samp>D</samp>’ for decimal. Any integer |
| value without a prefix or a suffix is considered to be decimal. |
| </p> |
| <a name="index-scaled-integers"></a> |
| <a name="index-K-and-M-integer-suffixes"></a> |
| <a name="index-M-and-K-integer-suffixes"></a> |
| <a name="index-suffixes-for-integers"></a> |
| <a name="index-integer-suffixes"></a> |
| <p>In addition, you can use the suffixes <code>K</code> and <code>M</code> to scale a |
| constant by |
| <code>1024</code> or <code>1024*1024</code> |
| respectively. For example, the following |
| all refer to the same quantity: |
| </p> |
| <div class="smallexample"> |
| <pre class="smallexample">_fourk_1 = 4K; |
| _fourk_2 = 4096; |
| _fourk_3 = 0x1000; |
| _fourk_4 = 10000o; |
| </pre></div> |
| |
| <p>Note - the <code>K</code> and <code>M</code> suffixes cannot be used in |
| conjunction with the base suffixes mentioned above. |
| </p> |
| |
| |
| |
| </body> |
| </html> |
