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| author | alk3pInjection <webmaster@raspii.tech> | 2024-02-04 16:16:35 +0800 |
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| committer | alk3pInjection <webmaster@raspii.tech> | 2024-02-04 16:16:35 +0800 |
| commit | abdaadbcae30fe0c9a66c7516798279fdfd97750 (patch) | |
| tree | 00a54a6e25601e43876d03c1a4a12a749d4a914c /share/doc/gdb/Signaling.html | |
https://developer.arm.com/downloads/-/arm-gnu-toolchain-downloads
Change-Id: I7303388733328cd98ab9aa3c30236db67f2e9e9c
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diff --git a/share/doc/gdb/Signaling.html b/share/doc/gdb/Signaling.html new file mode 100644 index 0000000..366b1f4 --- /dev/null +++ b/share/doc/gdb/Signaling.html @@ -0,0 +1,144 @@ +<!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: Signaling</title> + +<meta name="description" content="Debugging with GDB: Signaling"> +<meta name="keywords" content="Debugging with GDB: Signaling"> +<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="Altering.html#Altering" rel="up" title="Altering"> +<link href="Returning.html#Returning" rel="next" title="Returning"> +<link href="Jumping.html#Jumping" rel="previous" title="Jumping"> +<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="Signaling"></a> +<div class="header"> +<p> +Next: <a href="Returning.html#Returning" accesskey="n" rel="next">Returning</a>, Previous: <a href="Jumping.html#Jumping" accesskey="p" rel="previous">Jumping</a>, Up: <a href="Altering.html#Altering" accesskey="u" rel="up">Altering</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="Giving-your-Program-a-Signal"></a> +<h3 class="section">17.3 Giving your Program a Signal</h3> +<a name="index-deliver-a-signal-to-a-program"></a> + +<dl compact="compact"> +<dd><a name="index-signal"></a> +</dd> +<dt><code>signal <var>signal</var></code></dt> +<dd><p>Resume execution where your program is stopped, but immediately give it the +signal <var>signal</var>. The <var>signal</var> can be the name or the number of a +signal. For example, on many systems <code>signal 2</code> and <code>signal +SIGINT</code> are both ways of sending an interrupt signal. +</p> +<p>Alternatively, if <var>signal</var> is zero, continue execution without +giving a signal. This is useful when your program stopped on account of +a signal and would ordinarily see the signal when resumed with the +<code>continue</code> command; ‘<samp>signal 0</samp>’ causes it to resume without a +signal. +</p> +<p><em>Note:</em> When resuming a multi-threaded program, <var>signal</var> is +delivered to the currently selected thread, not the thread that last +reported a stop. This includes the situation where a thread was +stopped due to a signal. So if you want to continue execution +suppressing the signal that stopped a thread, you should select that +same thread before issuing the ‘<samp>signal 0</samp>’ command. If you issue +the ‘<samp>signal 0</samp>’ command with another thread as the selected one, +<small>GDB</small> detects that and asks for confirmation. +</p> +<p>Invoking the <code>signal</code> command is not the same as invoking the +<code>kill</code> utility from the shell. Sending a signal with <code>kill</code> +causes <small>GDB</small> to decide what to do with the signal depending on +the signal handling tables (see <a href="Signals.html#Signals">Signals</a>). The <code>signal</code> command +passes the signal directly to your program. +</p> +<p><code>signal</code> does not repeat when you press <tt class="key">RET</tt> a second time +after executing the command. +</p> +<a name="index-queue_002dsignal"></a> +</dd> +<dt><code>queue-signal <var>signal</var></code></dt> +<dd><p>Queue <var>signal</var> to be delivered immediately to the current thread +when execution of the thread resumes. The <var>signal</var> can be the name or +the number of a signal. For example, on many systems <code>signal 2</code> and +<code>signal SIGINT</code> are both ways of sending an interrupt signal. +The handling of the signal must be set to pass the signal to the program, +otherwise <small>GDB</small> will report an error. +You can control the handling of signals from <small>GDB</small> with the +<code>handle</code> command (see <a href="Signals.html#Signals">Signals</a>). +</p> +<p>Alternatively, if <var>signal</var> is zero, any currently queued signal +for the current thread is discarded and when execution resumes no signal +will be delivered. This is useful when your program stopped on account +of a signal and would ordinarily see the signal when resumed with the +<code>continue</code> command. +</p> +<p>This command differs from the <code>signal</code> command in that the signal +is just queued, execution is not resumed. And <code>queue-signal</code> cannot +be used to pass a signal whose handling state has been set to <code>nopass</code> +(see <a href="Signals.html#Signals">Signals</a>). +</p></dd> +</dl> + +<p>See <a href="Signals.html#stepping-into-signal-handlers">stepping into signal handlers</a>, for information on how stepping +commands behave when the thread has a signal queued. +</p> +<hr> +<div class="header"> +<p> +Next: <a href="Returning.html#Returning" accesskey="n" rel="next">Returning</a>, Previous: <a href="Jumping.html#Jumping" accesskey="p" rel="previous">Jumping</a>, Up: <a href="Altering.html#Altering" accesskey="u" rel="up">Altering</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> |