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diff --git a/share/doc/gdb/Trace-Files.html b/share/doc/gdb/Trace-Files.html new file mode 100644 index 0000000..0869a2a --- /dev/null +++ b/share/doc/gdb/Trace-Files.html @@ -0,0 +1,143 @@ +<!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: Trace Files</title> + +<meta name="description" content="Debugging with GDB: Trace Files"> +<meta name="keywords" content="Debugging with GDB: Trace Files"> +<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="Overlays.html#Overlays" rel="next" title="Overlays"> +<link href="Tracepoint-Variables.html#Tracepoint-Variables" rel="previous" title="Tracepoint Variables"> +<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="Trace-Files"></a> +<div class="header"> +<p> +Previous: <a href="Tracepoint-Variables.html#Tracepoint-Variables" accesskey="p" rel="previous">Tracepoint Variables</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-Trace-Files"></a> +<h3 class="section">13.4 Using Trace Files</h3> +<a name="index-trace-files"></a> + +<p>In some situations, the target running a trace experiment may no +longer be available; perhaps it crashed, or the hardware was needed +for a different activity. To handle these cases, you can arrange to +dump the trace data into a file, and later use that file as a source +of trace data, via the <code>target tfile</code> command. +</p> +<dl compact="compact"> +<dd> +<a name="index-tsave"></a> +</dd> +<dt><code>tsave [ -r ] <var>filename</var></code></dt> +<dt><code>tsave [-ctf] <var>dirname</var></code></dt> +<dd><p>Save the trace data to <var>filename</var>. By default, this command +assumes that <var>filename</var> refers to the host filesystem, so if +necessary <small>GDB</small> will copy raw trace data up from the target and +then save it. If the target supports it, you can also supply the +optional argument <code>-r</code> (“remote”) to direct the target to save +the data directly into <var>filename</var> in its own filesystem, which may be +more efficient if the trace buffer is very large. (Note, however, that +<code>target tfile</code> can only read from files accessible to the host.) +By default, this command will save trace frame in tfile format. +You can supply the optional argument <code>-ctf</code> to save data in CTF +format. The <em>Common Trace Format</em> (CTF) is proposed as a trace format +that can be shared by multiple debugging and tracing tools. Please go to +‘<code>http://www.efficios.com/ctf</code>’ to get more information. +</p> +<a name="index-target-tfile"></a> +<a name="index-tfile"></a> +<a name="index-target-ctf"></a> +<a name="index-ctf"></a> +</dd> +<dt><code>target tfile <var>filename</var></code></dt> +<dt><code>target ctf <var>dirname</var></code></dt> +<dd><p>Use the file named <var>filename</var> or directory named <var>dirname</var> as +a source of trace data. Commands that examine data work as they do with +a live target, but it is not possible to run any new trace experiments. +<code>tstatus</code> will report the state of the trace run at the moment +the data was saved, as well as the current trace frame you are examining. +Both <var>filename</var> and <var>dirname</var> must be on a filesystem accessible to +the host. +</p> +<div class="smallexample"> +<pre class="smallexample">(gdb) target ctf ctf.ctf +(gdb) tfind +Found trace frame 0, tracepoint 2 +39 ++a; /* set tracepoint 1 here */ +(gdb) tdump +Data collected at tracepoint 2, trace frame 0: +i = 0 +a = 0 +b = 1 '\001' +c = {"123", "456", "789", "123", "456", "789"} +d = {{{a = 1, b = 2}, {a = 3, b = 4}}, {{a = 5, b = 6}, {a = 7, b = 8}}} +(gdb) p b +$1 = 1 +</pre></div> + +</dd> +</dl> + +<hr> +<div class="header"> +<p> +Previous: <a href="Tracepoint-Variables.html#Tracepoint-Variables" accesskey="p" rel="previous">Tracepoint Variables</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> + + + +</body> +</html> |