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424 lines
18 KiB
HTML
424 lines
18 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- Copyright (C) 1988-2019 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being "Free Software" and "Free Software Needs
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Free Documentation", with the Front-Cover Texts being "A GNU Manual,"
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and with the Back-Cover Texts as in (a) below.
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(a) The FSF's Back-Cover Text is: "You are free to copy and modify
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this GNU Manual. Buying copies from GNU Press supports the FSF in
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developing GNU and promoting software freedom." -->
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Debugging Output (Debugging with GDB)</title>
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<meta name="description" content="Debugging Output (Debugging with GDB)">
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<meta name="keywords" content="Debugging Output (Debugging with GDB)">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Controlling-GDB.html#Controlling-GDB" rel="up" title="Controlling GDB">
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<link href="Other-Misc-Settings.html#Other-Misc-Settings" rel="next" title="Other Misc Settings">
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<link href="Messages_002fWarnings.html#Messages_002fWarnings" rel="prev" title="Messages/Warnings">
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<style type="text/css">
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<!--
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a.summary-letter {text-decoration: none}
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blockquote.indentedblock {margin-right: 0em}
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blockquote.smallindentedblock {margin-right: 0em; font-size: smaller}
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blockquote.smallquotation {font-size: smaller}
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div.display {margin-left: 3.2em}
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div.example {margin-left: 3.2em}
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div.lisp {margin-left: 3.2em}
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div.smalldisplay {margin-left: 3.2em}
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div.smallexample {margin-left: 3.2em}
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div.smalllisp {margin-left: 3.2em}
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kbd {font-style: oblique}
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pre.display {font-family: inherit}
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pre.format {font-family: inherit}
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pre.menu-comment {font-family: serif}
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pre.menu-preformatted {font-family: serif}
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pre.smalldisplay {font-family: inherit; font-size: smaller}
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pre.smallexample {font-size: smaller}
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pre.smallformat {font-family: inherit; font-size: smaller}
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pre.smalllisp {font-size: smaller}
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span.nolinebreak {white-space: nowrap}
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span.roman {font-family: initial; font-weight: normal}
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span.sansserif {font-family: sans-serif; font-weight: normal}
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ul.no-bullet {list-style: none}
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-->
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</style>
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</head>
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<body lang="en">
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<a name="Debugging-Output"></a>
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<div class="header">
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<p>
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Next: <a href="Other-Misc-Settings.html#Other-Misc-Settings" accesskey="n" rel="next">Other Misc Settings</a>, Previous: <a href="Messages_002fWarnings.html#Messages_002fWarnings" accesskey="p" rel="prev">Messages/Warnings</a>, Up: <a href="Controlling-GDB.html#Controlling-GDB" accesskey="u" rel="up">Controlling GDB</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>
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</div>
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<hr>
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<a name="Optional-Messages-about-Internal-Happenings"></a>
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<h3 class="section">22.10 Optional Messages about Internal Happenings</h3>
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<a name="index-optional-debugging-messages"></a>
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<p><small>GDB</small> has commands that enable optional debugging messages from
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various <small>GDB</small> subsystems; normally these commands are of
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interest to <small>GDB</small> maintainers, or when reporting a bug. This
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section documents those commands.
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</p>
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<dl compact="compact">
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<dd><a name="index-set-exec_002ddone_002ddisplay"></a>
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</dd>
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<dt><code>set exec-done-display</code></dt>
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<dd><p>Turns on or off the notification of asynchronous commands’
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completion. When on, <small>GDB</small> will print a message when an
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asynchronous command finishes its execution. The default is off.
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<a name="index-show-exec_002ddone_002ddisplay"></a>
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</p></dd>
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<dt><code>show exec-done-display</code></dt>
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<dd><p>Displays the current setting of asynchronous command completion
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notification.
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<a name="index-set-debug"></a>
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<a name="index-ARM-AArch64"></a>
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</p></dd>
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<dt><code>set debug aarch64</code></dt>
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<dd><p>Turns on or off display of debugging messages related to ARM AArch64.
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The default is off.
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<a name="index-show-debug"></a>
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</p></dd>
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<dt><code>show debug aarch64</code></dt>
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<dd><p>Displays the current state of displaying debugging messages related to
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ARM AArch64.
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<a name="index-gdbarch-debugging-info"></a>
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<a name="index-architecture-debugging-info"></a>
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</p></dd>
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<dt><code>set debug arch</code></dt>
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<dd><p>Turns on or off display of gdbarch debugging info. The default is off
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</p></dd>
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<dt><code>show debug arch</code></dt>
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<dd><p>Displays the current state of displaying gdbarch debugging info.
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</p></dd>
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<dt><code>set debug aix-solib</code></dt>
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<dd><a name="index-AIX-shared-library-debugging"></a>
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<p>Control display of debugging messages from the AIX shared library
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support module. The default is off.
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</p></dd>
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<dt><code>show debug aix-thread</code></dt>
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<dd><p>Show the current state of displaying AIX shared library debugging messages.
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</p></dd>
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<dt><code>set debug aix-thread</code></dt>
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<dd><a name="index-AIX-threads"></a>
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<p>Display debugging messages about inner workings of the AIX thread
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module.
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</p></dd>
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<dt><code>show debug aix-thread</code></dt>
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<dd><p>Show the current state of AIX thread debugging info display.
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</p></dd>
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<dt><code>set debug check-physname</code></dt>
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<dd><a name="index-physname"></a>
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<p>Check the results of the “physname” computation. When reading DWARF
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debugging information for C<tt>++</tt>, <small>GDB</small> attempts to compute
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each entity’s name. <small>GDB</small> can do this computation in two
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different ways, depending on exactly what information is present.
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When enabled, this setting causes <small>GDB</small> to compute the names
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both ways and display any discrepancies.
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</p></dd>
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<dt><code>show debug check-physname</code></dt>
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<dd><p>Show the current state of “physname” checking.
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</p></dd>
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<dt><code>set debug coff-pe-read</code></dt>
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<dd><a name="index-COFF_002fPE-exported-symbols"></a>
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<p>Control display of debugging messages related to reading of COFF/PE
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exported symbols. The default is off.
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</p></dd>
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<dt><code>show debug coff-pe-read</code></dt>
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<dd><p>Displays the current state of displaying debugging messages related to
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reading of COFF/PE exported symbols.
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</p></dd>
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<dt><code>set debug dwarf-die</code></dt>
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<dd><a name="index-DWARF-DIEs"></a>
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<p>Dump DWARF DIEs after they are read in.
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The value is the number of nesting levels to print.
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A value of zero turns off the display.
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</p></dd>
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<dt><code>show debug dwarf-die</code></dt>
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<dd><p>Show the current state of DWARF DIE debugging.
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</p></dd>
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<dt><code>set debug dwarf-line</code></dt>
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<dd><a name="index-DWARF-Line-Tables"></a>
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<p>Turns on or off display of debugging messages related to reading
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DWARF line tables. The default is 0 (off).
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A value of 1 provides basic information.
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A value greater than 1 provides more verbose information.
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</p></dd>
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<dt><code>show debug dwarf-line</code></dt>
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<dd><p>Show the current state of DWARF line table debugging.
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</p></dd>
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<dt><code>set debug dwarf-read</code></dt>
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<dd><a name="index-DWARF-Reading"></a>
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<p>Turns on or off display of debugging messages related to reading
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DWARF debug info. The default is 0 (off).
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A value of 1 provides basic information.
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A value greater than 1 provides more verbose information.
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</p></dd>
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<dt><code>show debug dwarf-read</code></dt>
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<dd><p>Show the current state of DWARF reader debugging.
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</p></dd>
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<dt><code>set debug displaced</code></dt>
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<dd><a name="index-displaced-stepping-debugging-info"></a>
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<p>Turns on or off display of <small>GDB</small> debugging info for the
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displaced stepping support. The default is off.
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</p></dd>
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<dt><code>show debug displaced</code></dt>
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<dd><p>Displays the current state of displaying <small>GDB</small> debugging info
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related to displaced stepping.
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</p></dd>
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<dt><code>set debug event</code></dt>
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<dd><a name="index-event-debugging-info"></a>
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<p>Turns on or off display of <small>GDB</small> event debugging info. The
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default is off.
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</p></dd>
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<dt><code>show debug event</code></dt>
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<dd><p>Displays the current state of displaying <small>GDB</small> event debugging
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info.
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</p></dd>
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<dt><code>set debug expression</code></dt>
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<dd><a name="index-expression-debugging-info"></a>
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<p>Turns on or off display of debugging info about <small>GDB</small>
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expression parsing. The default is off.
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</p></dd>
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<dt><code>show debug expression</code></dt>
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<dd><p>Displays the current state of displaying debugging info about
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<small>GDB</small> expression parsing.
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</p></dd>
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<dt><code>set debug fbsd-lwp</code></dt>
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<dd><a name="index-FreeBSD-LWP-debug-messages"></a>
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<p>Turns on or off debugging messages from the FreeBSD LWP debug support.
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</p></dd>
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<dt><code>show debug fbsd-lwp</code></dt>
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<dd><p>Show the current state of FreeBSD LWP debugging messages.
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</p></dd>
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<dt><code>set debug fbsd-nat</code></dt>
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<dd><a name="index-FreeBSD-native-target-debug-messages"></a>
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<p>Turns on or off debugging messages from the FreeBSD native target.
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</p></dd>
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<dt><code>show debug fbsd-nat</code></dt>
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<dd><p>Show the current state of FreeBSD native target debugging messages.
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</p></dd>
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<dt><code>set debug frame</code></dt>
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<dd><a name="index-frame-debugging-info"></a>
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<p>Turns on or off display of <small>GDB</small> frame debugging info. The
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default is off.
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</p></dd>
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<dt><code>show debug frame</code></dt>
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<dd><p>Displays the current state of displaying <small>GDB</small> frame debugging
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info.
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</p></dd>
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<dt><code>set debug gnu-nat</code></dt>
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<dd><a name="index-GNU_002fHurd-debug-messages"></a>
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<p>Turn on or off debugging messages from the <small>GNU</small>/Hurd debug support.
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</p></dd>
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<dt><code>show debug gnu-nat</code></dt>
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<dd><p>Show the current state of <small>GNU</small>/Hurd debugging messages.
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</p></dd>
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<dt><code>set debug infrun</code></dt>
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<dd><a name="index-inferior-debugging-info"></a>
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<p>Turns on or off display of <small>GDB</small> debugging info for running the inferior.
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The default is off. <samp>infrun.c</samp> contains GDB’s runtime state machine used
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for implementing operations such as single-stepping the inferior.
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</p></dd>
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<dt><code>show debug infrun</code></dt>
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<dd><p>Displays the current state of <small>GDB</small> inferior debugging.
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</p></dd>
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<dt><code>set debug jit</code></dt>
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<dd><a name="index-just_002din_002dtime-compilation_002c-debugging-messages"></a>
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<p>Turn on or off debugging messages from JIT debug support.
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</p></dd>
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<dt><code>show debug jit</code></dt>
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<dd><p>Displays the current state of <small>GDB</small> JIT debugging.
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</p></dd>
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<dt><code>set debug lin-lwp</code></dt>
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<dd><a name="index-GNU_002fLinux-LWP-debug-messages"></a>
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<a name="index-Linux-lightweight-processes"></a>
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<p>Turn on or off debugging messages from the Linux LWP debug support.
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</p></dd>
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<dt><code>show debug lin-lwp</code></dt>
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<dd><p>Show the current state of Linux LWP debugging messages.
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</p></dd>
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<dt><code>set debug linux-namespaces</code></dt>
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<dd><a name="index-GNU_002fLinux-namespaces-debug-messages"></a>
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<p>Turn on or off debugging messages from the Linux namespaces debug support.
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</p></dd>
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<dt><code>show debug linux-namespaces</code></dt>
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<dd><p>Show the current state of Linux namespaces debugging messages.
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</p></dd>
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<dt><code>set debug mach-o</code></dt>
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<dd><a name="index-Mach_002dO-symbols-processing"></a>
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<p>Control display of debugging messages related to Mach-O symbols
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processing. The default is off.
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</p></dd>
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<dt><code>show debug mach-o</code></dt>
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<dd><p>Displays the current state of displaying debugging messages related to
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reading of COFF/PE exported symbols.
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</p></dd>
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<dt><code>set debug notification</code></dt>
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<dd><a name="index-remote-async-notification-debugging-info"></a>
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<p>Turn on or off debugging messages about remote async notification.
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The default is off.
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</p></dd>
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<dt><code>show debug notification</code></dt>
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<dd><p>Displays the current state of remote async notification debugging messages.
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</p></dd>
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<dt><code>set debug observer</code></dt>
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<dd><a name="index-observer-debugging-info"></a>
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<p>Turns on or off display of <small>GDB</small> observer debugging. This
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includes info such as the notification of observable events.
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</p></dd>
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<dt><code>show debug observer</code></dt>
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<dd><p>Displays the current state of observer debugging.
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</p></dd>
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<dt><code>set debug overload</code></dt>
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<dd><a name="index-C_002b_002b-overload-debugging-info"></a>
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<p>Turns on or off display of <small>GDB</small> C<tt>++</tt> overload debugging
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info. This includes info such as ranking of functions, etc. The default
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is off.
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</p></dd>
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<dt><code>show debug overload</code></dt>
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<dd><p>Displays the current state of displaying <small>GDB</small> C<tt>++</tt> overload
|
||
|
|
debugging info.
|
||
|
|
<a name="index-expression-parser_002c-debugging-info"></a>
|
||
|
|
<a name="index-debug-expression-parser"></a>
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>set debug parser</code></dt>
|
||
|
|
<dd><p>Turns on or off the display of expression parser debugging output.
|
||
|
|
Internally, this sets the <code>yydebug</code> variable in the expression
|
||
|
|
parser. See <a href="http://www.gnu.org/software/bison/manual/html_node/Tracing.html#Tracing">Tracing Your Parser</a> in <cite>Bison</cite>, for
|
||
|
|
details. The default is off.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>show debug parser</code></dt>
|
||
|
|
<dd><p>Show the current state of expression parser debugging.
|
||
|
|
<a name="index-packets_002c-reporting-on-stdout"></a>
|
||
|
|
<a name="index-serial-connections_002c-debugging"></a>
|
||
|
|
<a name="index-debug-remote-protocol"></a>
|
||
|
|
<a name="index-remote-protocol-debugging"></a>
|
||
|
|
<a name="index-display-remote-packets"></a>
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>set debug remote</code></dt>
|
||
|
|
<dd><p>Turns on or off display of reports on all packets sent back and forth across
|
||
|
|
the serial line to the remote machine. The info is printed on the
|
||
|
|
<small>GDB</small> standard output stream. The default is off.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>show debug remote</code></dt>
|
||
|
|
<dd><p>Displays the state of display of remote packets.
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><code>set debug separate-debug-file</code></dt>
|
||
|
|
<dd><p>Turns on or off display of debug output about separate debug file search.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>show debug separate-debug-file</code></dt>
|
||
|
|
<dd><p>Displays the state of separate debug file search debug output.
|
||
|
|
</p>
|
||
|
|
</dd>
|
||
|
|
<dt><code>set debug serial</code></dt>
|
||
|
|
<dd><p>Turns on or off display of <small>GDB</small> serial debugging info. The
|
||
|
|
default is off.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>show debug serial</code></dt>
|
||
|
|
<dd><p>Displays the current state of displaying <small>GDB</small> serial debugging
|
||
|
|
info.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>set debug solib-frv</code></dt>
|
||
|
|
<dd><a name="index-FR_002dV-shared_002dlibrary-debugging"></a>
|
||
|
|
<p>Turn on or off debugging messages for FR-V shared-library code.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>show debug solib-frv</code></dt>
|
||
|
|
<dd><p>Display the current state of FR-V shared-library code debugging
|
||
|
|
messages.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>set debug symbol-lookup</code></dt>
|
||
|
|
<dd><a name="index-symbol-lookup"></a>
|
||
|
|
<p>Turns on or off display of debugging messages related to symbol lookup.
|
||
|
|
The default is 0 (off).
|
||
|
|
A value of 1 provides basic information.
|
||
|
|
A value greater than 1 provides more verbose information.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>show debug symbol-lookup</code></dt>
|
||
|
|
<dd><p>Show the current state of symbol lookup debugging messages.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>set debug symfile</code></dt>
|
||
|
|
<dd><a name="index-symbol-file-functions"></a>
|
||
|
|
<p>Turns on or off display of debugging messages related to symbol file functions.
|
||
|
|
The default is off. See <a href="Files.html#Files">Files</a>.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>show debug symfile</code></dt>
|
||
|
|
<dd><p>Show the current state of symbol file debugging messages.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>set debug symtab-create</code></dt>
|
||
|
|
<dd><a name="index-symbol-table-creation"></a>
|
||
|
|
<p>Turns on or off display of debugging messages related to symbol table creation.
|
||
|
|
The default is 0 (off).
|
||
|
|
A value of 1 provides basic information.
|
||
|
|
A value greater than 1 provides more verbose information.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>show debug symtab-create</code></dt>
|
||
|
|
<dd><p>Show the current state of symbol table creation debugging.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>set debug target</code></dt>
|
||
|
|
<dd><a name="index-target-debugging-info"></a>
|
||
|
|
<p>Turns on or off display of <small>GDB</small> target debugging info. This info
|
||
|
|
includes what is going on at the target level of GDB, as it happens. The
|
||
|
|
default is 0. Set it to 1 to track events, and to 2 to also track the
|
||
|
|
value of large memory transfers.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>show debug target</code></dt>
|
||
|
|
<dd><p>Displays the current state of displaying <small>GDB</small> target debugging
|
||
|
|
info.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>set debug timestamp</code></dt>
|
||
|
|
<dd><a name="index-timestampping-debugging-info"></a>
|
||
|
|
<p>Turns on or off display of timestamps with <small>GDB</small> debugging info.
|
||
|
|
When enabled, seconds and microseconds are displayed before each debugging
|
||
|
|
message.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>show debug timestamp</code></dt>
|
||
|
|
<dd><p>Displays the current state of displaying timestamps with <small>GDB</small>
|
||
|
|
debugging info.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>set debug varobj</code></dt>
|
||
|
|
<dd><a name="index-variable-object-debugging-info"></a>
|
||
|
|
<p>Turns on or off display of <small>GDB</small> variable object debugging
|
||
|
|
info. The default is off.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>show debug varobj</code></dt>
|
||
|
|
<dd><p>Displays the current state of displaying <small>GDB</small> variable object
|
||
|
|
debugging info.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>set debug xml</code></dt>
|
||
|
|
<dd><a name="index-XML-parser-debugging"></a>
|
||
|
|
<p>Turn on or off debugging messages for built-in XML parsers.
|
||
|
|
</p></dd>
|
||
|
|
<dt><code>show debug xml</code></dt>
|
||
|
|
<dd><p>Displays the current state of XML debugging messages.
|
||
|
|
</p></dd>
|
||
|
|
</dl>
|
||
|
|
|
||
|
|
<hr>
|
||
|
|
<div class="header">
|
||
|
|
<p>
|
||
|
|
Next: <a href="Other-Misc-Settings.html#Other-Misc-Settings" accesskey="n" rel="next">Other Misc Settings</a>, Previous: <a href="Messages_002fWarnings.html#Messages_002fWarnings" accesskey="p" rel="prev">Messages/Warnings</a>, Up: <a href="Controlling-GDB.html#Controlling-GDB" accesskey="u" rel="up">Controlling GDB</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>
|