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128 lines
4.7 KiB
HTML
128 lines
4.7 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- Copyright (C) 1988-2019 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being "Free Software" and "Free Software Needs
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Free Documentation", with the Front-Cover Texts being "A GNU Manual,"
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and with the Back-Cover Texts as in (a) below.
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(a) The FSF's Back-Cover Text is: "You are free to copy and modify
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this GNU Manual. Buying copies from GNU Press supports the FSF in
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developing GNU and promoting software freedom." -->
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Go (Debugging with GDB)</title>
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<meta name="description" content="Go (Debugging with GDB)">
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<meta name="keywords" content="Go (Debugging with GDB)">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Supported-Languages.html#Supported-Languages" rel="up" title="Supported Languages">
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<link href="Objective_002dC.html#Objective_002dC" rel="next" title="Objective-C">
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<link href="D.html#D" rel="prev" title="D">
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<style type="text/css">
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a.summary-letter {text-decoration: none}
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ul.no-bullet {list-style: none}
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-->
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</style>
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</head>
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<body lang="en">
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<a name="Go"></a>
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<div class="header">
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<p>
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Next: <a href="Objective_002dC.html#Objective_002dC" accesskey="n" rel="next">Objective-C</a>, Previous: <a href="D.html#D" accesskey="p" rel="prev">D</a>, Up: <a href="Supported-Languages.html#Supported-Languages" accesskey="u" rel="up">Supported Languages</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>
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</div>
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<hr>
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<a name="Go-1"></a>
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<h4 class="subsection">15.4.3 Go</h4>
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<a name="index-Go-_0028programming-language_0029"></a>
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<p><small>GDB</small> can be used to debug programs written in Go and compiled with
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<samp>gccgo</samp> or <samp>6g</samp> compilers.
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</p>
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<p>Here is a summary of the Go-specific features and restrictions:
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</p>
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<dl compact="compact">
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<dd><a name="index-current-Go-package"></a>
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</dd>
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<dt><code>The current Go package</code></dt>
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<dd><p>The name of the current package does not need to be specified when
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specifying global variables and functions.
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</p>
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<p>For example, given the program:
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</p>
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<div class="example">
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<pre class="example">package main
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var myglob = "Shall we?"
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func main () {
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// ...
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}
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</pre></div>
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<p>When stopped inside <code>main</code> either of these work:
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</p>
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<div class="example">
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<pre class="example">(gdb) p myglob
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(gdb) p main.myglob
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</pre></div>
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<a name="index-builtin-Go-types"></a>
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</dd>
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<dt><code>Builtin Go types</code></dt>
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<dd><p>The <code>string</code> type is recognized by <small>GDB</small> and is printed
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as a string.
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</p>
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<a name="index-builtin-Go-functions"></a>
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</dd>
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<dt><code>Builtin Go functions</code></dt>
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<dd><p>The <small>GDB</small> expression parser recognizes the <code>unsafe.Sizeof</code>
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function and handles it internally.
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</p>
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<a name="index-restrictions-on-Go-expressions"></a>
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</dd>
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<dt><code>Restrictions on Go expressions</code></dt>
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<dd><p>All Go operators are supported except <code>&^</code>.
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The Go <code>_</code> “blank identifier” is not supported.
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Automatic dereferencing of pointers is not supported.
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</p></dd>
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</dl>
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</body>
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</html>
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