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154 lines
6.3 KiB
HTML
154 lines
6.3 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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<!-- 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>Target Selection (GNU Binary Utilities)</title>
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<meta name="description" content="Target Selection (GNU Binary Utilities)">
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<meta name="keywords" content="Target Selection (GNU Binary Utilities)">
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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="Binutils-Index.html#Binutils-Index" rel="index" title="Binutils Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Selecting-the-Target-System.html#Selecting-the-Target-System" rel="up" title="Selecting the Target System">
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<link href="Architecture-Selection.html#Architecture-Selection" rel="next" title="Architecture Selection">
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<link href="Selecting-the-Target-System.html#Selecting-the-Target-System" rel="prev" title="Selecting the Target System">
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<style type="text/css">
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a.summary-letter {text-decoration: none}
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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="Target-Selection"></a>
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<div class="header">
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<p>
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Next: <a href="Architecture-Selection.html#Architecture-Selection" accesskey="n" rel="next">Architecture Selection</a>, Up: <a href="Selecting-the-Target-System.html#Selecting-the-Target-System" accesskey="u" rel="up">Selecting the Target System</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Binutils-Index.html#Binutils-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="Target-Selection-1"></a>
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<h3 class="section">17.1 Target Selection</h3>
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<p>A <em>target</em> is an object file format. A given target may be
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supported for multiple architectures (see <a href="Architecture-Selection.html#Architecture-Selection">Architecture Selection</a>).
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A target selection may also have variations for different operating
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systems or architectures.
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</p>
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<p>The command to list valid target values is ‘<samp>objdump -i</samp>’
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(the first column of output contains the relevant information).
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</p>
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<p>Some sample values are: ‘<samp>a.out-hp300bsd</samp>’, ‘<samp>ecoff-littlemips</samp>’,
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‘<samp>a.out-sunos-big</samp>’.
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</p>
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<p>You can also specify a target using a configuration triplet. This is
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the same sort of name that is passed to <samp>configure</samp> to specify a
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target. When you use a configuration triplet as an argument, it must be
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fully canonicalized. You can see the canonical version of a triplet by
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running the shell script <samp>config.sub</samp> which is included with the
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sources.
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</p>
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<p>Some sample configuration triplets are: ‘<samp>m68k-hp-bsd</samp>’,
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‘<samp>mips-dec-ultrix</samp>’, ‘<samp>sparc-sun-sunos</samp>’.
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</p>
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<a name="objdump-Target"></a>
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<h4 class="subheading"><code>objdump</code> Target</h4>
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<p>Ways to specify:
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</p>
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<ol>
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<li> command-line option: <samp>-b</samp> or <samp>--target</samp>
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</li><li> environment variable <code>GNUTARGET</code>
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</li><li> deduced from the input file
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</li></ol>
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<a name="objcopy-and-strip-Input-Target"></a>
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<h4 class="subheading"><code>objcopy</code> and <code>strip</code> Input Target</h4>
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<p>Ways to specify:
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</p>
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<ol>
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<li> command-line options: <samp>-I</samp> or <samp>--input-target</samp>, or <samp>-F</samp> or <samp>--target</samp>
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</li><li> environment variable <code>GNUTARGET</code>
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</li><li> deduced from the input file
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</li></ol>
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<a name="objcopy-and-strip-Output-Target"></a>
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<h4 class="subheading"><code>objcopy</code> and <code>strip</code> Output Target</h4>
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<p>Ways to specify:
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</p>
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<ol>
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<li> command-line options: <samp>-O</samp> or <samp>--output-target</samp>, or <samp>-F</samp> or <samp>--target</samp>
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</li><li> the input target (see “<code>objcopy</code> and <code>strip</code> Input Target” above)
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</li><li> environment variable <code>GNUTARGET</code>
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</li><li> deduced from the input file
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</li></ol>
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<a name="nm_002c-size_002c-and-strings-Target"></a>
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<h4 class="subheading"><code>nm</code>, <code>size</code>, and <code>strings</code> Target</h4>
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<p>Ways to specify:
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</p>
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<ol>
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<li> command-line option: <samp>--target</samp>
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</li><li> environment variable <code>GNUTARGET</code>
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</li><li> deduced from the input file
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</li></ol>
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<hr>
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<div class="header">
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<p>
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Next: <a href="Architecture-Selection.html#Architecture-Selection" accesskey="n" rel="next">Architecture Selection</a>, Up: <a href="Selecting-the-Target-System.html#Selecting-the-Target-System" accesskey="u" rel="up">Selecting the Target System</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Binutils-Index.html#Binutils-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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</body>
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</html>
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