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A copy of the license is included in the 10section entitled "GNU Free Documentation License". 11 --> 12<!-- Created by GNU Texinfo 5.1, http://www.gnu.org/software/texinfo/ --> 13<head> 14<title>GNU Binary Utilities: Target Selection</title> 15 16<meta name="description" content="GNU Binary Utilities: Target Selection"> 17<meta name="keywords" content="GNU Binary Utilities: Target Selection"> 18<meta name="resource-type" content="document"> 19<meta name="distribution" content="global"> 20<meta name="Generator" content="makeinfo"> 21<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 22<link href="index.html#Top" rel="start" title="Top"> 23<link href="Binutils-Index.html#Binutils-Index" rel="index" title="Binutils Index"> 24<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> 25<link href="Selecting-the-Target-System.html#Selecting-the-Target-System" rel="up" title="Selecting the Target System"> 26<link href="Architecture-Selection.html#Architecture-Selection" rel="next" title="Architecture Selection"> 27<link href="Selecting-the-Target-System.html#Selecting-the-Target-System" rel="previous" title="Selecting the Target System"> 28<style type="text/css"> 29<!-- 30a.summary-letter {text-decoration: none} 31blockquote.smallquotation {font-size: smaller} 32div.display {margin-left: 3.2em} 33div.example {margin-left: 3.2em} 34div.indentedblock {margin-left: 3.2em} 35div.lisp {margin-left: 3.2em} 36div.smalldisplay {margin-left: 3.2em} 37div.smallexample {margin-left: 3.2em} 38div.smallindentedblock {margin-left: 3.2em; font-size: smaller} 39div.smalllisp {margin-left: 3.2em} 40kbd {font-style:oblique} 41pre.display {font-family: inherit} 42pre.format {font-family: inherit} 43pre.menu-comment {font-family: serif} 44pre.menu-preformatted {font-family: serif} 45pre.smalldisplay {font-family: inherit; font-size: smaller} 46pre.smallexample {font-size: smaller} 47pre.smallformat {font-family: inherit; font-size: smaller} 48pre.smalllisp {font-size: smaller} 49span.nocodebreak {white-space:nowrap} 50span.nolinebreak {white-space:nowrap} 51span.roman {font-family:serif; font-weight:normal} 52span.sansserif {font-family:sans-serif; font-weight:normal} 53ul.no-bullet {list-style: none} 54--> 55</style> 56 57 58</head> 59 60<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> 61<a name="Target-Selection"></a> 62<div class="header"> 63<p> 64Next: <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> 65</div> 66<hr> 67<a name="Target-Selection-1"></a> 68<h3 class="section">17.1 Target Selection</h3> 69 70<p>A <em>target</em> is an object file format. A given target may be 71supported for multiple architectures (see <a href="Architecture-Selection.html#Architecture-Selection">Architecture Selection</a>). 72A target selection may also have variations for different operating 73systems or architectures. 74</p> 75<p>The command to list valid target values is ‘<samp>objdump -i</samp>’ 76(the first column of output contains the relevant information). 77</p> 78<p>Some sample values are: ‘<samp>a.out-hp300bsd</samp>’, ‘<samp>ecoff-littlemips</samp>’, 79‘<samp>a.out-sunos-big</samp>’. 80</p> 81<p>You can also specify a target using a configuration triplet. This is 82the same sort of name that is passed to <samp>configure</samp> to specify a 83target. When you use a configuration triplet as an argument, it must be 84fully canonicalized. You can see the canonical version of a triplet by 85running the shell script <samp>config.sub</samp> which is included with the 86sources. 87</p> 88<p>Some sample configuration triplets are: ‘<samp>m68k-hp-bsd</samp>’, 89‘<samp>mips-dec-ultrix</samp>’, ‘<samp>sparc-sun-sunos</samp>’. 90</p> 91<a name="objdump-Target"></a> 92<h4 class="subheading"><code>objdump</code> Target</h4> 93 94<p>Ways to specify: 95</p> 96<ol> 97<li> command-line option: <samp>-b</samp> or <samp>--target</samp> 98 99</li><li> environment variable <code>GNUTARGET</code> 100 101</li><li> deduced from the input file 102</li></ol> 103 104<a name="objcopy-and-strip-Input-Target"></a> 105<h4 class="subheading"><code>objcopy</code> and <code>strip</code> Input Target</h4> 106 107<p>Ways to specify: 108</p> 109<ol> 110<li> command-line options: <samp>-I</samp> or <samp>--input-target</samp>, or <samp>-F</samp> or <samp>--target</samp> 111 112</li><li> environment variable <code>GNUTARGET</code> 113 114</li><li> deduced from the input file 115</li></ol> 116 117<a name="objcopy-and-strip-Output-Target"></a> 118<h4 class="subheading"><code>objcopy</code> and <code>strip</code> Output Target</h4> 119 120<p>Ways to specify: 121</p> 122<ol> 123<li> command-line options: <samp>-O</samp> or <samp>--output-target</samp>, or <samp>-F</samp> or <samp>--target</samp> 124 125</li><li> the input target (see “<code>objcopy</code> and <code>strip</code> Input Target” above) 126 127</li><li> environment variable <code>GNUTARGET</code> 128 129</li><li> deduced from the input file 130</li></ol> 131 132<a name="nm_002c-size_002c-and-strings-Target"></a> 133<h4 class="subheading"><code>nm</code>, <code>size</code>, and <code>strings</code> Target</h4> 134 135<p>Ways to specify: 136</p> 137<ol> 138<li> command-line option: <samp>--target</samp> 139 140</li><li> environment variable <code>GNUTARGET</code> 141 142</li><li> deduced from the input file 143</li></ol> 144 145<hr> 146<div class="header"> 147<p> 148Next: <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> 149</div> 150 151 152 153</body> 154</html> 155