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100 lines
4.2 KiB
HTML
100 lines
4.2 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- This file documents the GNU Assembler "as".
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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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-->
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>R (Using as)</title>
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<meta name="description" content="R (Using as)">
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<meta name="keywords" content="R (Using as)">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="AS-Index.html#AS-Index" rel="index" title="AS Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Invoking.html#Invoking" rel="up" title="Invoking">
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<link href="statistics.html#statistics" rel="next" title="statistics">
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<link href="o.html#o" rel="prev" title="o">
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<style type="text/css">
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<!--
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a.summary-letter {text-decoration: none}
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blockquote.indentedblock {margin-right: 0em}
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blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
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blockquote.smallquotation {font-size: smaller}
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div.display {margin-left: 3.2em}
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div.example {margin-left: 3.2em}
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div.lisp {margin-left: 3.2em}
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div.smalldisplay {margin-left: 3.2em}
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div.smallexample {margin-left: 3.2em}
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div.smalllisp {margin-left: 3.2em}
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kbd {font-style: oblique}
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pre.display {font-family: inherit}
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pre.format {font-family: inherit}
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pre.menu-comment {font-family: serif}
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pre.menu-preformatted {font-family: serif}
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pre.smalldisplay {font-family: inherit; font-size: smaller}
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pre.smallexample {font-size: smaller}
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pre.smallformat {font-family: inherit; font-size: smaller}
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pre.smalllisp {font-size: smaller}
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span.nolinebreak {white-space: nowrap}
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span.roman {font-family: initial; font-weight: normal}
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span.sansserif {font-family: sans-serif; font-weight: normal}
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ul.no-bullet {list-style: none}
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-->
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</style>
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</head>
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<body lang="en">
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<a name="R"></a>
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<div class="header">
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<p>
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Next: <a href="statistics.html#statistics" accesskey="n" rel="next">statistics</a>, Previous: <a href="o.html#o" accesskey="p" rel="prev">o</a>, Up: <a href="Invoking.html#Invoking" accesskey="u" rel="up">Invoking</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="Join-Data-and-Text-Sections_003a-_002dR"></a>
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<h3 class="section">2.13 Join Data and Text Sections: <samp>-R</samp></h3>
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<a name="index-_002dR"></a>
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<a name="index-data-and-text-sections_002c-joining"></a>
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<a name="index-text-and-data-sections_002c-joining"></a>
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<a name="index-joining-text-and-data-sections"></a>
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<a name="index-merging-text-and-data-sections"></a>
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<p><samp>-R</samp> tells <code>as</code> to write the object file as if all
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data-section data lives in the text section. This is only done at
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the very last moment: your binary data are the same, but data
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section parts are relocated differently. The data section part of
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your object file is zero bytes long because all its bytes are
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appended to the text section. (See <a href="Sections.html#Sections">Sections and Relocation</a>.)
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</p>
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<p>When you specify <samp>-R</samp> it would be possible to generate shorter
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address displacements (because we do not have to cross between text and
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data section). We refrain from doing this simply for compatibility with
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older versions of <code>as</code>. In future, <samp>-R</samp> may work this way.
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</p>
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<p>When <code>as</code> is configured for COFF or ELF output,
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this option is only useful if you use sections named ‘<samp>.text</samp>’ and
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‘<samp>.data</samp>’.
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</p>
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<p><samp>-R</samp> is not supported for any of the HPPA targets. Using
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<samp>-R</samp> generates a warning from <code>as</code>.
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</p>
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</body>
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</html>
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