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diff --git a/share/doc/gdb/File-Caching.html b/share/doc/gdb/File-Caching.html new file mode 100644 index 0000000..676ad3b --- /dev/null +++ b/share/doc/gdb/File-Caching.html @@ -0,0 +1,118 @@ +<!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: File Caching</title> + +<meta name="description" content="Debugging with GDB: File Caching"> +<meta name="keywords" content="Debugging with GDB: File Caching"> +<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-Files.html#GDB-Files" rel="up" title="GDB Files"> +<link href="Separate-Debug-Files.html#Separate-Debug-Files" rel="next" title="Separate Debug Files"> +<link href="Files.html#Files" rel="previous" title="Files"> +<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="File-Caching"></a> +<div class="header"> +<p> +Next: <a href="Separate-Debug-Files.html#Separate-Debug-Files" accesskey="n" rel="next">Separate Debug Files</a>, Previous: <a href="Files.html#Files" accesskey="p" rel="previous">Files</a>, Up: <a href="GDB-Files.html#GDB-Files" accesskey="u" rel="up">GDB Files</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="File-Caching-1"></a> +<h3 class="section">18.2 File Caching</h3> +<a name="index-caching-of-opened-files"></a> +<a name="index-caching-of-bfd-objects"></a> + +<p>To speed up file loading, and reduce memory usage, <small>GDB</small> will +reuse the <code>bfd</code> objects used to track open files. See <a href="http://sourceware.org/binutils/docs/bfd/index.html#Top">BFD</a> in <cite>The Binary File Descriptor Library</cite>. The following commands +allow visibility and control of the caching behavior. +</p> +<dl compact="compact"> +<dd><a name="index-maint-info-bfds"></a> +</dd> +<dt><code>maint info bfds</code></dt> +<dd><p>This prints information about each <code>bfd</code> object that is known to +<small>GDB</small>. +</p> +<a name="index-maint-set-bfd_002dsharing"></a> +<a name="index-maint-show-bfd_002dsharing"></a> +<a name="index-bfd-caching"></a> +</dd> +<dt><code>maint set bfd-sharing</code></dt> +<dt><code>maint show bfd-sharing</code></dt> +<dd><p>Control whether <code>bfd</code> objects can be shared. When sharing is +enabled <small>GDB</small> reuses already open <code>bfd</code> objects rather +than reopening the same file. Turning sharing off does not cause +already shared <code>bfd</code> objects to be unshared, but all future files +that are opened will create a new <code>bfd</code> object. Similarly, +re-enabling sharing does not cause multiple existing <code>bfd</code> +objects to be collapsed into a single shared <code>bfd</code> object. +</p> +<a name="index-set-debug-bfd_002dcache-level"></a> +<a name="index-bfd-caching-1"></a> +</dd> +<dt><code>set debug bfd-cache <var>level</var></code></dt> +<dd><p>Turns on debugging of the bfd cache, setting the level to <var>level</var>. +</p> +<a name="index-show-debug-bfd_002dcache"></a> +<a name="index-bfd-caching-2"></a> +</dd> +<dt><code>show debug bfd-cache</code></dt> +<dd><p>Show the current debugging level of the bfd cache. +</p></dd> +</dl> + + + + +</body> +</html> |