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diff --git a/share/doc/gdb/Analyze-Collected-Data.html b/share/doc/gdb/Analyze-Collected-Data.html new file mode 100644 index 0000000..7750e18 --- /dev/null +++ b/share/doc/gdb/Analyze-Collected-Data.html @@ -0,0 +1,102 @@ +<!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: Analyze Collected Data</title> + +<meta name="description" content="Debugging with GDB: Analyze Collected Data"> +<meta name="keywords" content="Debugging with GDB: Analyze Collected Data"> +<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="Tracepoints.html#Tracepoints" rel="up" title="Tracepoints"> +<link href="tfind.html#tfind" rel="next" title="tfind"> +<link href="Tracepoint-Restrictions.html#Tracepoint-Restrictions" rel="previous" title="Tracepoint Restrictions"> +<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="Analyze-Collected-Data"></a> +<div class="header"> +<p> +Next: <a href="Tracepoint-Variables.html#Tracepoint-Variables" accesskey="n" rel="next">Tracepoint Variables</a>, Previous: <a href="Set-Tracepoints.html#Set-Tracepoints" accesskey="p" rel="previous">Set Tracepoints</a>, Up: <a href="Tracepoints.html#Tracepoints" accesskey="u" rel="up">Tracepoints</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="Using-the-Collected-Data"></a> +<h3 class="section">13.2 Using the Collected Data</h3> + +<p>After the tracepoint experiment ends, you use <small>GDB</small> commands +for examining the trace data. The basic idea is that each tracepoint +collects a trace <em>snapshot</em> every time it is hit and another +snapshot every time it single-steps. All these snapshots are +consecutively numbered from zero and go into a buffer, and you can +examine them later. The way you examine them is to <em>focus</em> on a +specific trace snapshot. When the remote stub is focused on a trace +snapshot, it will respond to all <small>GDB</small> requests for memory and +registers by reading from the buffer which belongs to that snapshot, +rather than from <em>real</em> memory or registers of the program being +debugged. This means that <strong>all</strong> <small>GDB</small> commands +(<code>print</code>, <code>info registers</code>, <code>backtrace</code>, etc.) will +behave as if we were currently debugging the program state as it was +when the tracepoint occurred. Any requests for data that are not in +the buffer will fail. +</p> +<table class="menu" border="0" cellspacing="0"> +<tr><td align="left" valign="top">• <a href="tfind.html#tfind" accesskey="1">tfind</a>:</td><td> </td><td align="left" valign="top">How to select a trace snapshot +</td></tr> +<tr><td align="left" valign="top">• <a href="tdump.html#tdump" accesskey="2">tdump</a>:</td><td> </td><td align="left" valign="top">How to display all data for a snapshot +</td></tr> +<tr><td align="left" valign="top">• <a href="save-tracepoints.html#save-tracepoints" accesskey="3">save tracepoints</a>:</td><td> </td><td align="left" valign="top">How to save tracepoints for a future run +</td></tr> +</table> + + + + +</body> +</html> |