diff options
Diffstat (limited to 'share/doc/gdb/Pointer-Values.html')
| -rw-r--r-- | share/doc/gdb/Pointer-Values.html | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/share/doc/gdb/Pointer-Values.html b/share/doc/gdb/Pointer-Values.html new file mode 100644 index 0000000..0d4572d --- /dev/null +++ b/share/doc/gdb/Pointer-Values.html @@ -0,0 +1,96 @@ +<!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: Pointer Values</title> + +<meta name="description" content="Debugging with GDB: Pointer Values"> +<meta name="keywords" content="Debugging with GDB: Pointer Values"> +<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="Protocol_002dspecific-Representation-of-Datatypes.html#Protocol_002dspecific-Representation-of-Datatypes" rel="up" title="Protocol-specific Representation of Datatypes"> +<link href="Memory-Transfer.html#Memory-Transfer" rel="next" title="Memory Transfer"> +<link href="Integral-Datatypes.html#Integral-Datatypes" rel="previous" title="Integral Datatypes"> +<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="Pointer-Values"></a> +<div class="header"> +<p> +Next: <a href="Memory-Transfer.html#Memory-Transfer" accesskey="n" rel="next">Memory Transfer</a>, Previous: <a href="Integral-Datatypes.html#Integral-Datatypes" accesskey="p" rel="previous">Integral Datatypes</a>, Up: <a href="Protocol_002dspecific-Representation-of-Datatypes.html#Protocol_002dspecific-Representation-of-Datatypes" accesskey="u" rel="up">Protocol-specific Representation of Datatypes</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="Pointer-Values-1"></a> +<h4 class="unnumberedsubsubsec">Pointer Values</h4> +<a name="index-pointer-values_002c-in-file_002di_002fo-protocol"></a> + +<p>Pointers to target data are transmitted as they are. An exception +is made for pointers to buffers for which the length isn’t +transmitted as part of the function call, namely strings. Strings +are transmitted as a pointer/length pair, both as hex values, e.g. +</p> +<div class="smallexample"> +<pre class="smallexample"><code>1aaf/12</code> +</pre></div> + +<p>which is a pointer to data of length 18 bytes at position 0x1aaf. +The length is defined as the full string length in bytes, including +the trailing null byte. For example, the string <code>"hello world"</code> +at address 0x123456 is transmitted as +</p> +<div class="smallexample"> +<pre class="smallexample"><code>123456/d</code> +</pre></div> + + + + +</body> +</html> |