<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
<html>
|
<!-- Copyright (C) 1988-2021 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 the
|
Invariant Sections being "Free Software" and "Free Software Needs
|
Free Documentation", with the Front-Cover Texts being "A GNU Manual,"
|
and with the Back-Cover Texts as in (a) below.
|
|
(a) The FSF's Back-Cover Text is: "You are free to copy and modify
|
this GNU Manual. Buying copies from GNU Press supports the FSF in
|
developing GNU and promoting software freedom." -->
|
<!-- Created by GNU Texinfo 5.1, http://www.gnu.org/software/texinfo/ -->
|
<head>
|
<title>Debugging with GDB: Pretty-Printer Commands</title>
|
|
<meta name="description" content="Debugging with GDB: Pretty-Printer Commands">
|
<meta name="keywords" content="Debugging with GDB: Pretty-Printer Commands">
|
<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="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
|
<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
|
<link href="Pretty-Printing.html#Pretty-Printing" rel="up" title="Pretty Printing">
|
<link href="Value-History.html#Value-History" rel="next" title="Value History">
|
<link href="Pretty_002dPrinter-Example.html#Pretty_002dPrinter-Example" rel="previous" title="Pretty-Printer Example">
|
<style type="text/css">
|
<!--
|
a.summary-letter {text-decoration: none}
|
blockquote.smallquotation {font-size: smaller}
|
div.display {margin-left: 3.2em}
|
div.example {margin-left: 3.2em}
|
div.indentedblock {margin-left: 3.2em}
|
div.lisp {margin-left: 3.2em}
|
div.smalldisplay {margin-left: 3.2em}
|
div.smallexample {margin-left: 3.2em}
|
div.smallindentedblock {margin-left: 3.2em; font-size: smaller}
|
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.nocodebreak {white-space:nowrap}
|
span.nolinebreak {white-space:nowrap}
|
span.roman {font-family:serif; font-weight:normal}
|
span.sansserif {font-family:sans-serif; font-weight:normal}
|
ul.no-bullet {list-style: none}
|
-->
|
</style>
|
|
|
</head>
|
|
<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
|
<a name="Pretty_002dPrinter-Commands"></a>
|
<div class="header">
|
<p>
|
Previous: <a href="Pretty_002dPrinter-Example.html#Pretty_002dPrinter-Example" accesskey="p" rel="previous">Pretty-Printer Example</a>, Up: <a href="Pretty-Printing.html#Pretty-Printing" accesskey="u" rel="up">Pretty Printing</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
|
</div>
|
<hr>
|
<a name="Pretty_002dPrinter-Commands-1"></a>
|
<h4 class="subsection">10.9.3 Pretty-Printer Commands</h4>
|
<a name="index-pretty_002dprinter-commands"></a>
|
|
<dl compact="compact">
|
<dd><a name="index-info-pretty_002dprinter"></a>
|
</dd>
|
<dt><code>info pretty-printer [<var>object-regexp</var> [<var>name-regexp</var>]]</code></dt>
|
<dd><p>Print the list of installed pretty-printers.
|
This includes disabled pretty-printers, which are marked as such.
|
</p>
|
<p><var>object-regexp</var> is a regular expression matching the objects
|
whose pretty-printers to list.
|
Objects can be <code>global</code>, the program space’s file
|
(see <a href="Progspaces-In-Python.html#Progspaces-In-Python">Progspaces In Python</a>),
|
and the object files within that program space (see <a href="Objfiles-In-Python.html#Objfiles-In-Python">Objfiles In Python</a>).
|
See <a href="Selecting-Pretty_002dPrinters.html#Selecting-Pretty_002dPrinters">Selecting Pretty-Printers</a>, for details on how <small>GDB</small>
|
looks up a printer from these three objects.
|
</p>
|
<p><var>name-regexp</var> is a regular expression matching the name of the printers
|
to list.
|
</p>
|
<a name="index-disable-pretty_002dprinter"></a>
|
</dd>
|
<dt><code>disable pretty-printer [<var>object-regexp</var> [<var>name-regexp</var>]]</code></dt>
|
<dd><p>Disable pretty-printers matching <var>object-regexp</var> and <var>name-regexp</var>.
|
A disabled pretty-printer is not forgotten, it may be enabled again later.
|
</p>
|
<a name="index-enable-pretty_002dprinter"></a>
|
</dd>
|
<dt><code>enable pretty-printer [<var>object-regexp</var> [<var>name-regexp</var>]]</code></dt>
|
<dd><p>Enable pretty-printers matching <var>object-regexp</var> and <var>name-regexp</var>.
|
</p></dd>
|
</dl>
|
|
<p>Example:
|
</p>
|
<p>Suppose we have three pretty-printers installed: one from library1.so
|
named <code>foo</code> that prints objects of type <code>foo</code>, and
|
another from library2.so named <code>bar</code> that prints two types of objects,
|
<code>bar1</code> and <code>bar2</code>.
|
</p>
|
<div class="smallexample">
|
<pre class="smallexample">(gdb) info pretty-printer
|
library1.so:
|
foo
|
library2.so:
|
bar
|
bar1
|
bar2
|
(gdb) info pretty-printer library2
|
library2.so:
|
bar
|
bar1
|
bar2
|
(gdb) disable pretty-printer library1
|
1 printer disabled
|
2 of 3 printers enabled
|
(gdb) info pretty-printer
|
library1.so:
|
foo [disabled]
|
library2.so:
|
bar
|
bar1
|
bar2
|
(gdb) disable pretty-printer library2 bar;bar1
|
1 printer disabled
|
1 of 3 printers enabled
|
(gdb) info pretty-printer library2
|
library1.so:
|
foo [disabled]
|
library2.so:
|
bar
|
bar1 [disabled]
|
bar2
|
(gdb) disable pretty-printer library2 bar
|
1 printer disabled
|
0 of 3 printers enabled
|
(gdb) info pretty-printer library2
|
library1.so:
|
foo [disabled]
|
library2.so:
|
bar [disabled]
|
bar1 [disabled]
|
bar2
|
</pre></div>
|
|
<p>Note that for <code>bar</code> the entire printer can be disabled,
|
as can each individual subprinter.
|
</p>
|
<p>Printing values and frame arguments is done by default using
|
the enabled pretty printers.
|
</p>
|
<p>The print option <code>-raw-values</code> and <small>GDB</small> setting
|
<code>set print raw-values</code> (see <a href="Print-Settings.html#set-print-raw_002dvalues">set print raw-values</a>) can be
|
used to print values without applying the enabled pretty printers.
|
</p>
|
<p>Similarly, the backtrace option <code>-raw-frame-arguments</code> and
|
<small>GDB</small> setting <code>set print raw-frame-arguments</code>
|
(see <a href="Print-Settings.html#set-print-raw_002dframe_002darguments">set print raw-frame-arguments</a>) can be used to ignore the
|
enabled pretty printers when printing frame argument values.
|
</p>
|
<hr>
|
<div class="header">
|
<p>
|
Previous: <a href="Pretty_002dPrinter-Example.html#Pretty_002dPrinter-Example" accesskey="p" rel="previous">Pretty-Printer Example</a>, Up: <a href="Pretty-Printing.html#Pretty-Printing" accesskey="u" rel="up">Pretty Printing</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
|
</div>
|
|
|
|
</body>
|
</html>
|
