You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
132 lines
5.0 KiB
HTML
132 lines
5.0 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<html>
|
|
<!-- 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".
|
|
-->
|
|
<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
|
|
<head>
|
|
<title>Errors (Using as)</title>
|
|
|
|
<meta name="description" content="Errors (Using as)">
|
|
<meta name="keywords" content="Errors (Using as)">
|
|
<meta name="resource-type" content="document">
|
|
<meta name="distribution" content="global">
|
|
<meta name="Generator" content="makeinfo">
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
|
<link href="index.html#Top" rel="start" title="Top">
|
|
<link href="AS-Index.html#AS-Index" rel="index" title="AS Index">
|
|
<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
|
|
<link href="Overview.html#Overview" rel="up" title="Overview">
|
|
<link href="Invoking.html#Invoking" rel="next" title="Invoking">
|
|
<link href="Object.html#Object" rel="prev" title="Object">
|
|
<style type="text/css">
|
|
<!--
|
|
a.summary-letter {text-decoration: none}
|
|
blockquote.indentedblock {margin-right: 0em}
|
|
blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
|
|
blockquote.smallquotation {font-size: smaller}
|
|
div.display {margin-left: 3.2em}
|
|
div.example {margin-left: 3.2em}
|
|
div.lisp {margin-left: 3.2em}
|
|
div.smalldisplay {margin-left: 3.2em}
|
|
div.smallexample {margin-left: 3.2em}
|
|
div.smalllisp {margin-left: 3.2em}
|
|
kbd {font-style: oblique}
|
|
pre.display {font-family: inherit}
|
|
pre.format {font-family: inherit}
|
|
pre.menu-comment {font-family: serif}
|
|
pre.menu-preformatted {font-family: serif}
|
|
pre.smalldisplay {font-family: inherit; font-size: smaller}
|
|
pre.smallexample {font-size: smaller}
|
|
pre.smallformat {font-family: inherit; font-size: smaller}
|
|
pre.smalllisp {font-size: smaller}
|
|
span.nolinebreak {white-space: nowrap}
|
|
span.roman {font-family: initial; font-weight: normal}
|
|
span.sansserif {font-family: sans-serif; font-weight: normal}
|
|
ul.no-bullet {list-style: none}
|
|
-->
|
|
</style>
|
|
|
|
|
|
</head>
|
|
|
|
<body lang="en">
|
|
<a name="Errors"></a>
|
|
<div class="header">
|
|
<p>
|
|
Previous: <a href="Object.html#Object" accesskey="p" rel="prev">Object</a>, Up: <a href="Overview.html#Overview" accesskey="u" rel="up">Overview</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p>
|
|
</div>
|
|
<hr>
|
|
<a name="Error-and-Warning-Messages"></a>
|
|
<h3 class="section">1.7 Error and Warning Messages</h3>
|
|
|
|
|
|
<a name="index-error-messages"></a>
|
|
<a name="index-warning-messages"></a>
|
|
<a name="index-messages-from-assembler"></a>
|
|
<p><code>as</code> may write warnings and error messages to the standard error
|
|
file (usually your terminal). This should not happen when a compiler
|
|
runs <code>as</code> automatically. Warnings report an assumption made so
|
|
that <code>as</code> could keep assembling a flawed program; errors report a
|
|
grave problem that stops the assembly.
|
|
</p>
|
|
|
|
<a name="index-format-of-warning-messages"></a>
|
|
<p>Warning messages have the format
|
|
</p>
|
|
<div class="smallexample">
|
|
<pre class="smallexample">file_name:<b>NNN</b>:Warning Message Text
|
|
</pre></div>
|
|
|
|
<p><a name="index-file-names-and-line-numbers_002c-in-warnings_002ferrors"></a>
|
|
(where <b>NNN</b> is a line number). If both a logical file name
|
|
(see <a href="File.html#File"><code>.file</code></a>) and a logical line number
|
|
(see <a href="Line.html#Line"><code>.line</code></a>)
|
|
have been given then they will be used, otherwise the file name and line number
|
|
in the current assembler source file will be used. The message text is
|
|
intended to be self explanatory (in the grand Unix tradition).
|
|
</p>
|
|
<p>Note the file name must be set via the logical version of the <code>.file</code>
|
|
directive, not the DWARF2 version of the <code>.file</code> directive. For example:
|
|
</p>
|
|
<div class="smallexample">
|
|
<pre class="smallexample"> .file 2 "bar.c"
|
|
error_assembler_source
|
|
.file "foo.c"
|
|
.line 30
|
|
error_c_source
|
|
</pre></div>
|
|
|
|
<p>produces this output:
|
|
</p>
|
|
<div class="smallexample">
|
|
<pre class="smallexample"> Assembler messages:
|
|
asm.s:2: Error: no such instruction: `error_assembler_source'
|
|
foo.c:31: Error: no such instruction: `error_c_source'
|
|
</pre></div>
|
|
|
|
<a name="index-format-of-error-messages"></a>
|
|
<p>Error messages have the format
|
|
</p>
|
|
<div class="smallexample">
|
|
<pre class="smallexample">file_name:<b>NNN</b>:FATAL:Error Message Text
|
|
</pre></div>
|
|
|
|
<p>The file name and line number are derived as for warning
|
|
messages. The actual message text may be rather less explanatory
|
|
because many of them aren’t supposed to happen.
|
|
</p>
|
|
|
|
|
|
|
|
</body>
|
|
</html>
|