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104 lines
4.5 KiB
HTML
104 lines
4.5 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>Using JIT Debug Info Readers (Debugging with GDB)</title>
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<meta name="description" content="Using JIT Debug Info Readers (Debugging with GDB)">
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<meta name="keywords" content="Using JIT Debug Info Readers (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="Custom-Debug-Info.html#Custom-Debug-Info" rel="up" title="Custom Debug Info">
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<link href="Writing-JIT-Debug-Info-Readers.html#Writing-JIT-Debug-Info-Readers" rel="next" title="Writing JIT Debug Info Readers">
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<link href="Custom-Debug-Info.html#Custom-Debug-Info" rel="prev" title="Custom Debug Info">
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<style type="text/css">
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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="Using-JIT-Debug-Info-Readers"></a>
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<div class="header">
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<p>
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Next: <a href="Writing-JIT-Debug-Info-Readers.html#Writing-JIT-Debug-Info-Readers" accesskey="n" rel="next">Writing JIT Debug Info Readers</a>, Up: <a href="Custom-Debug-Info.html#Custom-Debug-Info" accesskey="u" rel="up">Custom Debug Info</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="Using-JIT-Debug-Info-Readers-1"></a>
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<h4 class="subsection">29.4.1 Using JIT Debug Info Readers</h4>
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<a name="index-jit_002dreader_002dload"></a>
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<a name="index-jit_002dreader_002dunload"></a>
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<p>Readers can be loaded and unloaded using the <code>jit-reader-load</code>
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and <code>jit-reader-unload</code> commands.
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</p>
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<dl compact="compact">
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<dt><code>jit-reader-load <var>reader</var></code></dt>
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<dd><p>Load the JIT reader named <var>reader</var>, which is a shared
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object specified as either an absolute or a relative file name. In
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the latter case, <small>GDB</small> will try to load the reader from a
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pre-configured directory, usually <samp><var>libdir</var>/gdb/</samp> on a UNIX
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system (here <var>libdir</var> is the system library directory, often
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<samp>/usr/local/lib</samp>).
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</p>
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<p>Only one reader can be active at a time; trying to load a second
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reader when one is already loaded will result in <small>GDB</small>
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reporting an error. A new JIT reader can be loaded by first unloading
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the current one using <code>jit-reader-unload</code> and then invoking
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<code>jit-reader-load</code>.
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</p>
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</dd>
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<dt><code>jit-reader-unload</code></dt>
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<dd><p>Unload the currently loaded JIT reader.
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</p>
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</dd>
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</dl>
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</body>
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</html>
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