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69 lines
3.2 KiB
HTML
69 lines
3.2 KiB
HTML
4 years ago
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<html lang="en">
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<head>
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<title>Object - Using as</title>
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<meta http-equiv="Content-Type" content="text/html">
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<meta name="description" content="Using as">
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<meta name="generator" content="makeinfo 4.13">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="Overview.html#Overview" title="Overview">
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<link rel="prev" href="Input-Files.html#Input-Files" title="Input Files">
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<link rel="next" href="Errors.html#Errors" title="Errors">
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<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
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<!--
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This file documents the GNU Assembler "as".
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Copyright (C) 1991-2015 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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<meta http-equiv="Content-Style-Type" content="text/css">
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<style type="text/css"><!--
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pre.display { font-family:inherit }
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pre.format { font-family:inherit }
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pre.smalldisplay { font-family:inherit; font-size:smaller }
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pre.smallformat { font-family:inherit; font-size:smaller }
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pre.smallexample { font-size:smaller }
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pre.smalllisp { font-size:smaller }
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span.sc { font-variant:small-caps }
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span.roman { font-family:serif; font-weight:normal; }
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span.sansserif { font-family:sans-serif; font-weight:normal; }
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--></style>
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</head>
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<body>
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<div class="node">
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<a name="Object"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="Errors.html#Errors">Errors</a>,
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Previous: <a rel="previous" accesskey="p" href="Input-Files.html#Input-Files">Input Files</a>,
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Up: <a rel="up" accesskey="u" href="Overview.html#Overview">Overview</a>
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<hr>
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</div>
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<h3 class="section">1.6 Output (Object) File</h3>
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<p><a name="index-object-file-34"></a><a name="index-output-file-35"></a><a name="index-a_002eout-36"></a><a name="index-g_t_002eo-37"></a>Every time you run <samp><span class="command">as</span></samp> it produces an output file, which is
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your assembly language program translated into numbers. This file
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is the object file. Its default name is
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<code>a.out</code>.
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You can give it another name by using the <samp><span class="option">-o</span></samp> option. Conventionally,
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object file names end with <samp><span class="file">.o</span></samp>. The default name is used for historical
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reasons: older assemblers were capable of assembling self-contained programs
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directly into a runnable program. (For some formats, this isn't currently
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possible, but it can be done for the <code>a.out</code> format.)
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<p><a name="index-linker-38"></a><a name="index-ld-39"></a>The object file is meant for input to the linker <code>ld</code>. It contains
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assembled program code, information to help <code>ld</code> integrate
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the assembled program into a runnable file, and (optionally) symbolic
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information for the debugger.
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<!-- link above to some info file(s) like the description of a.out. -->
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<!-- don't forget to describe @sc{gnu} info as well as Unix lossage. -->
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</body></html>
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