231 lines
10 KiB
HTML
231 lines
10 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<html>
|
|
<!-- Copyright (C) 1988-2022 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: C++ Exception GDB/MI Catchpoint Commands</title>
|
|
|
|
<meta name="description" content="Debugging with GDB: C++ Exception GDB/MI Catchpoint Commands">
|
|
<meta name="keywords" content="Debugging with GDB: C++ Exception GDB/MI Catchpoint 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="GDB_002fMI-Catchpoint-Commands.html#GDB_002fMI-Catchpoint-Commands" rel="up" title="GDB/MI Catchpoint Commands">
|
|
<link href="GDB_002fMI-Program-Context.html#GDB_002fMI-Program-Context" rel="next" title="GDB/MI Program Context">
|
|
<link href="Ada-Exception-GDB_002fMI-Catchpoint-Commands.html#Ada-Exception-GDB_002fMI-Catchpoint-Commands" rel="previous" title="Ada Exception GDB/MI Catchpoint Commands">
|
|
<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="C_002b_002b-Exception-GDB_002fMI-Catchpoint-Commands"></a>
|
|
<div class="header">
|
|
<p>
|
|
Previous: <a href="Ada-Exception-GDB_002fMI-Catchpoint-Commands.html#Ada-Exception-GDB_002fMI-Catchpoint-Commands" accesskey="p" rel="previous">Ada Exception GDB/MI Catchpoint Commands</a>, Up: <a href="GDB_002fMI-Catchpoint-Commands.html#GDB_002fMI-Catchpoint-Commands" accesskey="u" rel="up">GDB/MI Catchpoint Commands</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="C_002b_002b-Exception-GDB_002fMI-Catchpoints"></a>
|
|
<h4 class="subsection">27.9.3 C<tt>++</tt> Exception <small>GDB/MI</small> Catchpoints</h4>
|
|
|
|
<p>The following <small>GDB/MI</small> commands can be used to create catchpoints
|
|
that stop the execution when C<tt>++</tt> exceptions are being throw, rethrown,
|
|
or caught.
|
|
</p>
|
|
<a name="The-_002dcatch_002dthrow-Command"></a>
|
|
<h4 class="subheading">The <code>-catch-throw</code> Command</h4>
|
|
<a name="index-_002dcatch_002dthrow"></a>
|
|
|
|
<a name="Synopsis-18"></a>
|
|
<h4 class="subsubheading">Synopsis</h4>
|
|
|
|
<div class="smallexample">
|
|
<pre class="smallexample"> -catch-throw [ -t ] [ -r <var>regexp</var>]
|
|
</pre></div>
|
|
|
|
<p>Stop when the debuggee throws a C<tt>++</tt> exception. If <var>regexp</var> is
|
|
given, then only exceptions whose type matches the regular expression
|
|
will be caught.
|
|
</p>
|
|
<p>If ‘<samp>-t</samp>’ is given, then the catchpoint is enabled only for one
|
|
stop, the catchpoint is automatically deleted after stopping once for
|
|
the event.
|
|
</p>
|
|
<a name="GDB-Command-17"></a>
|
|
<h4 class="subsubheading"><small>GDB</small> Command</h4>
|
|
|
|
<p>The corresponding <small>GDB</small> commands are ‘<samp>catch throw</samp>’
|
|
and ‘<samp>tcatch throw</samp>’ (see <a href="Set-Catchpoints.html#Set-Catchpoints">Set Catchpoints</a>).
|
|
</p>
|
|
<a name="Example-17"></a>
|
|
<h4 class="subsubheading">Example</h4>
|
|
|
|
<div class="smallexample">
|
|
<pre class="smallexample">-catch-throw -r exception_type
|
|
^done,bkpt={number="1",type="catchpoint",disp="keep",enabled="y",
|
|
what="exception throw",catch-type="throw",
|
|
thread-groups=["i1"],
|
|
regexp="exception_type",times="0"}
|
|
(gdb)
|
|
-exec-run
|
|
^running
|
|
(gdb)
|
|
~"\n"
|
|
~"Catchpoint 1 (exception thrown), 0x00007ffff7ae00ed
|
|
in __cxa_throw () from /lib64/libstdc++.so.6\n"
|
|
*stopped,bkptno="1",reason="breakpoint-hit",disp="keep",
|
|
frame={addr="0x00007ffff7ae00ed",func="__cxa_throw",
|
|
args=[],from="/lib64/libstdc++.so.6",arch="i386:x86-64"},
|
|
thread-id="1",stopped-threads="all",core="6"
|
|
(gdb)
|
|
</pre></div>
|
|
|
|
<a name="The-_002dcatch_002drethrow-Command"></a>
|
|
<h4 class="subheading">The <code>-catch-rethrow</code> Command</h4>
|
|
<a name="index-_002dcatch_002drethrow"></a>
|
|
|
|
<a name="Synopsis-19"></a>
|
|
<h4 class="subsubheading">Synopsis</h4>
|
|
|
|
<div class="smallexample">
|
|
<pre class="smallexample"> -catch-rethrow [ -t ] [ -r <var>regexp</var>]
|
|
</pre></div>
|
|
|
|
<p>Stop when a C<tt>++</tt> exception is re-thrown. If <var>regexp</var> is given,
|
|
then only exceptions whose type matches the regular expression will be
|
|
caught.
|
|
</p>
|
|
<p>If ‘<samp>-t</samp>’ is given, then the catchpoint is enabled only for one
|
|
stop, the catchpoint is automatically deleted after the first event is
|
|
caught.
|
|
</p>
|
|
<a name="GDB-Command-18"></a>
|
|
<h4 class="subsubheading"><small>GDB</small> Command</h4>
|
|
|
|
<p>The corresponding <small>GDB</small> commands are ‘<samp>catch rethrow</samp>’
|
|
and ‘<samp>tcatch rethrow</samp>’ (see <a href="Set-Catchpoints.html#Set-Catchpoints">Set Catchpoints</a>).
|
|
</p>
|
|
<a name="Example-18"></a>
|
|
<h4 class="subsubheading">Example</h4>
|
|
|
|
<div class="smallexample">
|
|
<pre class="smallexample">-catch-rethrow -r exception_type
|
|
^done,bkpt={number="1",type="catchpoint",disp="keep",enabled="y",
|
|
what="exception rethrow",catch-type="rethrow",
|
|
thread-groups=["i1"],
|
|
regexp="exception_type",times="0"}
|
|
(gdb)
|
|
-exec-run
|
|
^running
|
|
(gdb)
|
|
~"\n"
|
|
~"Catchpoint 1 (exception rethrown), 0x00007ffff7ae00ed
|
|
in __cxa_rethrow () from /lib64/libstdc++.so.6\n"
|
|
*stopped,bkptno="1",reason="breakpoint-hit",disp="keep",
|
|
frame={addr="0x00007ffff7ae00ed",func="__cxa_rethrow",
|
|
args=[],from="/lib64/libstdc++.so.6",arch="i386:x86-64"},
|
|
thread-id="1",stopped-threads="all",core="6"
|
|
(gdb)
|
|
</pre></div>
|
|
|
|
<a name="The-_002dcatch_002dcatch-Command"></a>
|
|
<h4 class="subheading">The <code>-catch-catch</code> Command</h4>
|
|
<a name="index-_002dcatch_002dcatch"></a>
|
|
|
|
<a name="Synopsis-20"></a>
|
|
<h4 class="subsubheading">Synopsis</h4>
|
|
|
|
<div class="smallexample">
|
|
<pre class="smallexample"> -catch-catch [ -t ] [ -r <var>regexp</var>]
|
|
</pre></div>
|
|
|
|
<p>Stop when the debuggee catches a C<tt>++</tt> exception. If <var>regexp</var>
|
|
is given, then only exceptions whose type matches the regular
|
|
expression will be caught.
|
|
</p>
|
|
<p>If ‘<samp>-t</samp>’ is given, then the catchpoint is enabled only for one
|
|
stop, the catchpoint is automatically deleted after the first event is
|
|
caught.
|
|
</p>
|
|
<a name="GDB-Command-19"></a>
|
|
<h4 class="subsubheading"><small>GDB</small> Command</h4>
|
|
|
|
<p>The corresponding <small>GDB</small> commands are ‘<samp>catch catch</samp>’
|
|
and ‘<samp>tcatch catch</samp>’ (see <a href="Set-Catchpoints.html#Set-Catchpoints">Set Catchpoints</a>).
|
|
</p>
|
|
<a name="Example-19"></a>
|
|
<h4 class="subsubheading">Example</h4>
|
|
|
|
<div class="smallexample">
|
|
<pre class="smallexample">-catch-catch -r exception_type
|
|
^done,bkpt={number="1",type="catchpoint",disp="keep",enabled="y",
|
|
what="exception catch",catch-type="catch",
|
|
thread-groups=["i1"],
|
|
regexp="exception_type",times="0"}
|
|
(gdb)
|
|
-exec-run
|
|
^running
|
|
(gdb)
|
|
~"\n"
|
|
~"Catchpoint 1 (exception caught), 0x00007ffff7ae00ed
|
|
in __cxa_begin_catch () from /lib64/libstdc++.so.6\n"
|
|
*stopped,bkptno="1",reason="breakpoint-hit",disp="keep",
|
|
frame={addr="0x00007ffff7ae00ed",func="__cxa_begin_catch",
|
|
args=[],from="/lib64/libstdc++.so.6",arch="i386:x86-64"},
|
|
thread-id="1",stopped-threads="all",core="6"
|
|
(gdb)
|
|
</pre></div>
|
|
|
|
<hr>
|
|
<div class="header">
|
|
<p>
|
|
Previous: <a href="Ada-Exception-GDB_002fMI-Catchpoint-Commands.html#Ada-Exception-GDB_002fMI-Catchpoint-Commands" accesskey="p" rel="previous">Ada Exception GDB/MI Catchpoint Commands</a>, Up: <a href="GDB_002fMI-Catchpoint-Commands.html#GDB_002fMI-Catchpoint-Commands" accesskey="u" rel="up">GDB/MI Catchpoint Commands</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>
|