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diff --git a/share/doc/gdb/Background-Execution.html b/share/doc/gdb/Background-Execution.html new file mode 100644 index 0000000..2fca9bb --- /dev/null +++ b/share/doc/gdb/Background-Execution.html @@ -0,0 +1,175 @@ +<!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: Background Execution</title> + +<meta name="description" content="Debugging with GDB: Background Execution"> +<meta name="keywords" content="Debugging with GDB: Background Execution"> +<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="Thread-Stops.html#Thread-Stops" rel="up" title="Thread Stops"> +<link href="Thread_002dSpecific-Breakpoints.html#Thread_002dSpecific-Breakpoints" rel="next" title="Thread-Specific Breakpoints"> +<link href="Non_002dStop-Mode.html#Non_002dStop-Mode" rel="previous" title="Non-Stop Mode"> +<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="Background-Execution"></a> +<div class="header"> +<p> +Next: <a href="Thread_002dSpecific-Breakpoints.html#Thread_002dSpecific-Breakpoints" accesskey="n" rel="next">Thread-Specific Breakpoints</a>, Previous: <a href="Non_002dStop-Mode.html#Non_002dStop-Mode" accesskey="p" rel="previous">Non-Stop Mode</a>, Up: <a href="Thread-Stops.html#Thread-Stops" accesskey="u" rel="up">Thread Stops</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="Background-Execution-1"></a> +<h4 class="subsection">5.5.3 Background Execution</h4> + +<a name="index-foreground-execution"></a> +<a name="index-background-execution"></a> +<a name="index-asynchronous-execution"></a> +<a name="index-execution_002c-foreground_002c-background-and-asynchronous"></a> + +<p><small>GDB</small>’s execution commands have two variants: the normal +foreground (synchronous) behavior, and a background +(asynchronous) behavior. In foreground execution, <small>GDB</small> waits for +the program to report that some thread has stopped before prompting for +another command. In background execution, <small>GDB</small> immediately gives +a command prompt so that you can issue other commands while your program runs. +</p> +<p>If the target doesn’t support async mode, <small>GDB</small> issues an error +message if you attempt to use the background execution commands. +</p> +<a name="index-_0026_002c-background-execution-of-commands"></a> +<p>To specify background execution, add a <code>&</code> to the command. For example, +the background form of the <code>continue</code> command is <code>continue&</code>, or +just <code>c&</code>. The execution commands that accept background execution +are: +</p> +<dl compact="compact"> +<dd><a name="index-run_0026"></a> +</dd> +<dt><code>run</code></dt> +<dd><p>See <a href="Starting.html#Starting">Starting your Program</a>. +</p> +</dd> +<dt><code>attach</code></dt> +<dd><a name="index-attach_0026"></a> +<p>See <a href="Attach.html#Attach">Debugging an Already-running Process</a>. +</p> +</dd> +<dt><code>step</code></dt> +<dd><a name="index-step_0026"></a> +<p>See <a href="Continuing-and-Stepping.html#Continuing-and-Stepping">step</a>. +</p> +</dd> +<dt><code>stepi</code></dt> +<dd><a name="index-stepi_0026"></a> +<p>See <a href="Continuing-and-Stepping.html#Continuing-and-Stepping">stepi</a>. +</p> +</dd> +<dt><code>next</code></dt> +<dd><a name="index-next_0026"></a> +<p>See <a href="Continuing-and-Stepping.html#Continuing-and-Stepping">next</a>. +</p> +</dd> +<dt><code>nexti</code></dt> +<dd><a name="index-nexti_0026"></a> +<p>See <a href="Continuing-and-Stepping.html#Continuing-and-Stepping">nexti</a>. +</p> +</dd> +<dt><code>continue</code></dt> +<dd><a name="index-continue_0026"></a> +<p>See <a href="Continuing-and-Stepping.html#Continuing-and-Stepping">continue</a>. +</p> +</dd> +<dt><code>finish</code></dt> +<dd><a name="index-finish_0026"></a> +<p>See <a href="Continuing-and-Stepping.html#Continuing-and-Stepping">finish</a>. +</p> +</dd> +<dt><code>until</code></dt> +<dd><a name="index-until_0026"></a> +<p>See <a href="Continuing-and-Stepping.html#Continuing-and-Stepping">until</a>. +</p> +</dd> +</dl> + +<p>Background execution is especially useful in conjunction with non-stop +mode for debugging programs with multiple threads; see <a href="Non_002dStop-Mode.html#Non_002dStop-Mode">Non-Stop Mode</a>. +However, you can also use these commands in the normal all-stop mode with +the restriction that you cannot issue another execution command until the +previous one finishes. Examples of commands that are valid in all-stop +mode while the program is running include <code>help</code> and <code>info break</code>. +</p> +<p>You can interrupt your program while it is running in the background by +using the <code>interrupt</code> command. +</p> +<dl compact="compact"> +<dd><a name="index-interrupt-1"></a> +</dd> +<dt><code>interrupt</code></dt> +<dt><code>interrupt -a</code></dt> +<dd> +<p>Suspend execution of the running program. In all-stop mode, +<code>interrupt</code> stops the whole process, but in non-stop mode, it stops +only the current thread. To stop the whole program in non-stop mode, +use <code>interrupt -a</code>. +</p></dd> +</dl> + +<hr> +<div class="header"> +<p> +Next: <a href="Thread_002dSpecific-Breakpoints.html#Thread_002dSpecific-Breakpoints" accesskey="n" rel="next">Thread-Specific Breakpoints</a>, Previous: <a href="Non_002dStop-Mode.html#Non_002dStop-Mode" accesskey="p" rel="previous">Non-Stop Mode</a>, Up: <a href="Thread-Stops.html#Thread-Stops" accesskey="u" rel="up">Thread Stops</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> |