75 lines
3.5 KiB
HTML
75 lines
3.5 KiB
HTML
|
<html lang="en">
|
||
|
|
<head>
|
||
|
|
<title>Command Line - Using as</title>
|
||
|
|
<meta http-equiv="Content-Type" content="text/html">
|
||
|
|
<meta name="description" content="Using as">
|
||
|
|
<meta name="generator" content="makeinfo 4.13">
|
||
|
|
<link title="Top" rel="start" href="index.html#Top">
|
||
|
|
<link rel="up" href="Overview.html#Overview" title="Overview">
|
||
|
|
<link rel="prev" href="Object-Formats.html#Object-Formats" title="Object Formats">
|
||
|
|
<link rel="next" href="Input-Files.html#Input-Files" title="Input Files">
|
||
|
|
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
|
||
|
|
<!--
|
||
|
|
This file documents the GNU Assembler "as".
|
||
|
|
|
||
|
|
Copyright (C) 1991-2019 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
Permission is granted to copy, distribute and/or modify this document
|
||
|
|
under the terms of the GNU Free Documentation License, Version 1.3
|
||
|
|
or any later version published by the Free Software Foundation;
|
||
|
|
with no Invariant Sections, with no Front-Cover Texts, and with no
|
||
|
|
Back-Cover Texts. A copy of the license is included in the
|
||
|
|
section entitled ``GNU Free Documentation License''.
|
||
|
|
|
||
|
|
-->
|
||
|
|
<meta http-equiv="Content-Style-Type" content="text/css">
|
||
|
|
<style type="text/css"><!--
|
||
|
|
pre.display { font-family:inherit }
|
||
|
|
pre.format { font-family:inherit }
|
||
|
|
pre.smalldisplay { font-family:inherit; font-size:smaller }
|
||
|
|
pre.smallformat { font-family:inherit; font-size:smaller }
|
||
|
|
pre.smallexample { font-size:smaller }
|
||
|
|
pre.smalllisp { font-size:smaller }
|
||
|
|
span.sc { font-variant:small-caps }
|
||
|
|
span.roman { font-family:serif; font-weight:normal; }
|
||
|
|
span.sansserif { font-family:sans-serif; font-weight:normal; }
|
||
|
|
--></style>
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
<div class="node">
|
||
|
|
<a name="Command-Line"></a>
|
||
|
|
<p>
|
||
|
|
Next: <a rel="next" accesskey="n" href="Input-Files.html#Input-Files">Input Files</a>,
|
||
|
|
Previous: <a rel="previous" accesskey="p" href="Object-Formats.html#Object-Formats">Object Formats</a>,
|
||
|
|
Up: <a rel="up" accesskey="u" href="Overview.html#Overview">Overview</a>
|
||
|
|
<hr>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<h3 class="section">1.4 Command Line</h3>
|
||
|
|
|
||
|
|
<p><a name="index-command-line-conventions-25"></a>
|
||
|
|
After the program name <samp><span class="command">as</span></samp>, the command line may contain
|
||
|
|
options and file names. Options may appear in any order, and may be
|
||
|
|
before, after, or between file names. The order of file names is
|
||
|
|
significant.
|
||
|
|
|
||
|
|
<p><a name="index-standard-input_002c-as-input-file-26"></a><a name="index-g_t_002d_002d-27"></a><samp><span class="file">--</span></samp> (two hyphens) by itself names the standard input file
|
||
|
|
explicitly, as one of the files for <samp><span class="command">as</span></samp> to assemble.
|
||
|
|
|
||
|
|
<p><a name="index-options_002c-command-line-28"></a>Except for ‘<samp><span class="samp">--</span></samp>’ any command-line argument that begins with a
|
||
|
|
hyphen (‘<samp><span class="samp">-</span></samp>’) is an option. Each option changes the behavior of
|
||
|
|
<samp><span class="command">as</span></samp>. No option changes the way another option works. An
|
||
|
|
option is a ‘<samp><span class="samp">-</span></samp>’ followed by one or more letters; the case of
|
||
|
|
the letter is important. All options are optional.
|
||
|
|
|
||
|
|
<p>Some options expect exactly one file name to follow them. The file
|
||
|
|
name may either immediately follow the option's letter (compatible
|
||
|
|
with older assemblers) or it may be the next command argument (<span class="sc">gnu</span>
|
||
|
|
standard). These two command lines are equivalent:
|
||
|
|
|
||
|
|
<pre class="smallexample"> as -o my-object-file.o mumble.s
|
||
|
|
as -omy-object-file.o mumble.s
|
||
|
|
</pre>
|
||
|
|
</body></html>
|
||
|
|
|