98 lines
5.0 KiB
HTML
98 lines
5.0 KiB
HTML
<html lang="en">
|
|
<head>
|
|
<title>Invoking - 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="prev" href="Overview.html#Overview" title="Overview">
|
|
<link rel="next" href="Syntax.html#Syntax" title="Syntax">
|
|
<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="Invoking"></a>
|
|
<p>
|
|
Next: <a rel="next" accesskey="n" href="Syntax.html#Syntax">Syntax</a>,
|
|
Previous: <a rel="previous" accesskey="p" href="Overview.html#Overview">Overview</a>,
|
|
Up: <a rel="up" accesskey="u" href="index.html#Top">Top</a>
|
|
<hr>
|
|
</div>
|
|
|
|
<h2 class="chapter">2 Command-Line Options</h2>
|
|
|
|
<p><a name="index-options_002c-all-versions-of-assembler-46"></a>This chapter describes command-line options available in <em>all</em>
|
|
versions of the <span class="sc">gnu</span> assembler; see <a href="Machine-Dependencies.html#Machine-Dependencies">Machine Dependencies</a>,
|
|
for options specific
|
|
to particular machine architectures.
|
|
|
|
<!-- man begin DESCRIPTION -->
|
|
<p>If you are invoking <samp><span class="command">as</span></samp> via the <span class="sc">gnu</span> C compiler,
|
|
you can use the ‘<samp><span class="samp">-Wa</span></samp>’ option to pass arguments through to the assembler.
|
|
The assembler arguments must be separated from each other (and the ‘<samp><span class="samp">-Wa</span></samp>’)
|
|
by commas. For example:
|
|
|
|
<pre class="smallexample"> gcc -c -g -O -Wa,-alh,-L file.c
|
|
</pre>
|
|
<p class="noindent">This passes two options to the assembler: ‘<samp><span class="samp">-alh</span></samp>’ (emit a listing to
|
|
standard output with high-level and assembly source) and ‘<samp><span class="samp">-L</span></samp>’ (retain
|
|
local symbols in the symbol table).
|
|
|
|
<p>Usually you do not need to use this ‘<samp><span class="samp">-Wa</span></samp>’ mechanism, since many compiler
|
|
command-line options are automatically passed to the assembler by the compiler.
|
|
(You can call the <span class="sc">gnu</span> compiler driver with the ‘<samp><span class="samp">-v</span></samp>’ option to see
|
|
precisely what options it passes to each compilation pass, including the
|
|
assembler.)
|
|
|
|
<!-- man end -->
|
|
<ul class="menu">
|
|
<li><a accesskey="1" href="a.html#a">a</a>: -a[cdghlns] enable listings
|
|
<li><a accesskey="2" href="alternate.html#alternate">alternate</a>: --alternate enable alternate macro syntax
|
|
<li><a accesskey="3" href="D.html#D">D</a>: -D for compatibility
|
|
<li><a accesskey="4" href="f.html#f">f</a>: -f to work faster
|
|
<li><a accesskey="5" href="I.html#I">I</a>: -I for .include search path
|
|
|
|
<li><a accesskey="6" href="K.html#K">K</a>: -K for difference tables
|
|
|
|
<li><a accesskey="7" href="L.html#L">L</a>: -L to retain local symbols
|
|
<li><a accesskey="8" href="listing.html#listing">listing</a>: --listing-XXX to configure listing output
|
|
<li><a accesskey="9" href="M.html#M">M</a>: -M or --mri to assemble in MRI compatibility mode
|
|
<li><a href="MD.html#MD">MD</a>: --MD for dependency tracking
|
|
<li><a href="no_002dpad_002dsections.html#no_002dpad_002dsections">no-pad-sections</a>: --no-pad-sections to stop section padding
|
|
<li><a href="o.html#o">o</a>: -o to name the object file
|
|
<li><a href="R.html#R">R</a>: -R to join data and text sections
|
|
<li><a href="statistics.html#statistics">statistics</a>: --statistics to see statistics about assembly
|
|
<li><a href="traditional_002dformat.html#traditional_002dformat">traditional-format</a>: --traditional-format for compatible output
|
|
<li><a href="v.html#v">v</a>: -v to announce version
|
|
<li><a href="W.html#W">W</a>: -W, --no-warn, --warn, --fatal-warnings to control warnings
|
|
<li><a href="Z.html#Z">Z</a>: -Z to make object file even after errors
|
|
</ul>
|
|
|
|
</body></html>
|
|
|