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diff --git a/share/doc/gdb/Custom-Debug-Info.html b/share/doc/gdb/Custom-Debug-Info.html new file mode 100644 index 0000000..1dd6dc9 --- /dev/null +++ b/share/doc/gdb/Custom-Debug-Info.html @@ -0,0 +1,104 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html> +<!-- Copyright (C) 1988-2023 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: Custom Debug Info</title> + +<meta name="description" content="Debugging with GDB: Custom Debug Info"> +<meta name="keywords" content="Debugging with GDB: Custom Debug Info"> +<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="JIT-Interface.html#JIT-Interface" rel="up" title="JIT Interface"> +<link href="Using-JIT-Debug-Info-Readers.html#Using-JIT-Debug-Info-Readers" rel="next" title="Using JIT Debug Info Readers"> +<link href="Unregistering-Code.html#Unregistering-Code" rel="previous" title="Unregistering Code"> +<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="Custom-Debug-Info"></a> +<div class="header"> +<p> +Previous: <a href="Unregistering-Code.html#Unregistering-Code" accesskey="p" rel="previous">Unregistering Code</a>, Up: <a href="JIT-Interface.html#JIT-Interface" accesskey="u" rel="up">JIT Interface</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="Custom-Debug-Info-1"></a> +<h3 class="section">29.4 Custom Debug Info</h3> +<a name="index-custom-JIT-debug-info"></a> +<a name="index-JIT-debug-info-reader"></a> + +<p>Generating debug information in platform-native file formats (like ELF +or COFF) may be an overkill for JIT compilers; especially if all the +debug info is used for is displaying a meaningful backtrace. The +issue can be resolved by having the JIT writers decide on a debug info +format and also provide a reader that parses the debug info generated +by the JIT compiler. This section gives a brief overview on writing +such a parser. More specific details can be found in the source file +<samp>gdb/jit-reader.in</samp>, which is also installed as a header at +<samp><var>includedir</var>/gdb/jit-reader.h</samp> for easy inclusion. +</p> +<p>The reader is implemented as a shared object (so this functionality is +not available on platforms which don’t allow loading shared objects at +runtime). Two <small>GDB</small> commands, <code>jit-reader-load</code> and +<code>jit-reader-unload</code> are provided, to be used to load and unload +the readers from a preconfigured directory. Once loaded, the shared +object is used the parse the debug information emitted by the JIT +compiler. +</p> +<table class="menu" border="0" cellspacing="0"> +<tr><td align="left" valign="top">• <a href="Using-JIT-Debug-Info-Readers.html#Using-JIT-Debug-Info-Readers" accesskey="1">Using JIT Debug Info Readers</a>:</td><td> </td><td align="left" valign="top">How to use supplied readers correctly +</td></tr> +<tr><td align="left" valign="top">• <a href="Writing-JIT-Debug-Info-Readers.html#Writing-JIT-Debug-Info-Readers" accesskey="2">Writing JIT Debug Info Readers</a>:</td><td> </td><td align="left" valign="top">Creating a debug-info reader +</td></tr> +</table> + + + + +</body> +</html> |