144 lines
5.6 KiB
HTML
144 lines
5.6 KiB
HTML
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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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<!-- Copyright (C) 1988-2016 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 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being "Funding Free Software", the Front-Cover
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Texts being (a) (see below), and with the Back-Cover Texts being (b)
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(see below). A copy of the license is included in the section entitled
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"GNU Free Documentation License".
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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(b) The FSF's Back-Cover Text is:
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You have freedom to copy and modify this GNU Manual, like GNU
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software. Copies published by the Free Software Foundation raise
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funds for GNU development. -->
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<!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Using the GNU Compiler Collection (GCC): H8/300 Options</title>
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<meta name="description" content="Using the GNU Compiler Collection (GCC): H8/300 Options">
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<meta name="keywords" content="Using the GNU Compiler Collection (GCC): H8/300 Options">
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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="Option-Index.html#Option-Index" rel="index" title="Option Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Submodel-Options.html#Submodel-Options" rel="up" title="Submodel Options">
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<link href="HPPA-Options.html#HPPA-Options" rel="next" title="HPPA Options">
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<link href="GNU_002fLinux-Options.html#GNU_002fLinux-Options" rel="prev" title="GNU/Linux Options">
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<style type="text/css">
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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" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
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<a name="H8_002f300-Options"></a>
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<div class="header">
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<p>
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Next: <a href="HPPA-Options.html#HPPA-Options" accesskey="n" rel="next">HPPA Options</a>, Previous: <a href="GNU_002fLinux-Options.html#GNU_002fLinux-Options" accesskey="p" rel="prev">GNU/Linux Options</a>, Up: <a href="Submodel-Options.html#Submodel-Options" accesskey="u" rel="up">Submodel Options</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="H8_002f300-Options-1"></a>
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<h4 class="subsection">3.18.16 H8/300 Options</h4>
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<p>These ‘<samp>-m</samp>’ options are defined for the H8/300 implementations:
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</p>
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<dl compact="compact">
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<dt><code>-mrelax</code></dt>
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<dd><a name="index-mrelax-1"></a>
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<p>Shorten some address references at link time, when possible; uses the
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linker option <samp>-relax</samp>. See <a href="http://sourceware.org/binutils/docs/ld/H8_002f300.html#H8_002f300"><code>ld</code> and the H8/300</a> in <cite>Using ld</cite>, for a fuller description.
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</p>
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</dd>
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<dt><code>-mh</code></dt>
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<dd><a name="index-mh"></a>
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<p>Generate code for the H8/300H.
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</p>
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</dd>
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<dt><code>-ms</code></dt>
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<dd><a name="index-ms"></a>
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<p>Generate code for the H8S.
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</p>
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</dd>
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<dt><code>-mn</code></dt>
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<dd><a name="index-mn"></a>
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<p>Generate code for the H8S and H8/300H in the normal mode. This switch
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must be used either with <samp>-mh</samp> or <samp>-ms</samp>.
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</p>
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</dd>
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<dt><code>-ms2600</code></dt>
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<dd><a name="index-ms2600"></a>
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<p>Generate code for the H8S/2600. This switch must be used with <samp>-ms</samp>.
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</p>
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</dd>
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<dt><code>-mexr</code></dt>
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<dd><a name="index-mexr"></a>
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<p>Extended registers are stored on stack before execution of function
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with monitor attribute. Default option is <samp>-mexr</samp>.
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This option is valid only for H8S targets.
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</p>
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</dd>
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<dt><code>-mno-exr</code></dt>
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<dd><a name="index-mno_002dexr"></a>
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<p>Extended registers are not stored on stack before execution of function
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with monitor attribute. Default option is <samp>-mno-exr</samp>.
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This option is valid only for H8S targets.
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</p>
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</dd>
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<dt><code>-mint32</code></dt>
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<dd><a name="index-mint32-1"></a>
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<p>Make <code>int</code> data 32 bits by default.
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</p>
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</dd>
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<dt><code>-malign-300</code></dt>
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<dd><a name="index-malign_002d300"></a>
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<p>On the H8/300H and H8S, use the same alignment rules as for the H8/300.
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The default for the H8/300H and H8S is to align longs and floats on
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4-byte boundaries.
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<samp>-malign-300</samp> causes them to be aligned on 2-byte boundaries.
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This option has no effect on the H8/300.
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</p></dd>
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</dl>
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</body>
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</html>
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