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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/Separate-Objdir.html | |
https://developer.arm.com/downloads/-/arm-gnu-toolchain-downloads
Change-Id: I7303388733328cd98ab9aa3c30236db67f2e9e9c
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diff --git a/share/doc/gdb/Separate-Objdir.html b/share/doc/gdb/Separate-Objdir.html new file mode 100644 index 0000000..53094ba --- /dev/null +++ b/share/doc/gdb/Separate-Objdir.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: Separate Objdir</title> + +<meta name="description" content="Debugging with GDB: Separate Objdir"> +<meta name="keywords" content="Debugging with GDB: Separate Objdir"> +<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="Installing-GDB.html#Installing-GDB" rel="up" title="Installing GDB"> +<link href="Config-Names.html#Config-Names" rel="next" title="Config Names"> +<link href="Running-Configure.html#Running-Configure" rel="previous" title="Running Configure"> +<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="Separate-Objdir"></a> +<div class="header"> +<p> +Next: <a href="Config-Names.html#Config-Names" accesskey="n" rel="next">Config Names</a>, Previous: <a href="Running-Configure.html#Running-Configure" accesskey="p" rel="previous">Running Configure</a>, Up: <a href="Installing-GDB.html#Installing-GDB" accesskey="u" rel="up">Installing GDB</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="Compiling-GDB-in-Another-Directory"></a> +<h3 class="section">C.3 Compiling <small>GDB</small> in Another Directory</h3> + +<p>If you want to run <small>GDB</small> versions for several host or target machines, +you need a different <code>gdb</code> compiled for each combination of +host and target. <samp>configure</samp> is designed to make this easy by +allowing you to generate each configuration in a separate subdirectory, +rather than in the source directory. If your <code>make</code> program +handles the ‘<samp>VPATH</samp>’ feature (<small>GNU</small> <code>make</code> does), running +<code>make</code> in each of these directories builds the <code>gdb</code> +program specified there. +</p> +<p>To build <code>gdb</code> in a separate directory, run <samp>configure</samp> +with the ‘<samp>--srcdir</samp>’ option to specify where to find the source. +(You also need to specify a path to find <samp>configure</samp> +itself from your working directory. If the path to <samp>configure</samp> +would be the same as the argument to ‘<samp>--srcdir</samp>’, you can leave out +the ‘<samp>--srcdir</samp>’ option; it is assumed.) +</p> +<p>For example, with version 13.2.90.20231008-git, you can build <small>GDB</small> in a +separate directory for a Sun 4 like this: +</p> +<div class="smallexample"> +<pre class="smallexample">cd gdb-13.2.90.20231008-git +mkdir ../gdb-sun4 +cd ../gdb-sun4 +../gdb-13.2.90.20231008-git/configure +make +</pre></div> + +<p>When <samp>configure</samp> builds a configuration using a remote source +directory, it creates a tree for the binaries with the same structure +(and using the same names) as the tree under the source directory. In +the example, you’d find the Sun 4 library <samp>libiberty.a</samp> in the +directory <samp>gdb-sun4/libiberty</samp>, and <small>GDB</small> itself in +<samp>gdb-sun4/gdb</samp>. +</p> +<p>Make sure that your path to the <samp>configure</samp> script has just one +instance of <samp>gdb</samp> in it. If your path to <samp>configure</samp> looks +like <samp>../gdb-13.2.90.20231008-git/gdb/configure</samp>, you are configuring only +one subdirectory of <small>GDB</small>, not the whole package. This leads to +build errors about missing include files such as <samp>bfd/bfd.h</samp>. +</p> +<p>One popular reason to build several <small>GDB</small> configurations in separate +directories is to configure <small>GDB</small> for cross-compiling (where +<small>GDB</small> runs on one machine—the <em>host</em>—while debugging +programs that run on another machine—the <em>target</em>). +You specify a cross-debugging target by +giving the ‘<samp>--target=<var>target</var></samp>’ option to <samp>configure</samp>. +</p> +<p>When you run <code>make</code> to build a program or library, you must run +it in a configured directory—whatever directory you were in when you +called <samp>configure</samp> (or one of its subdirectories). +</p> +<p>The <code>Makefile</code> that <samp>configure</samp> generates in each source +directory also runs recursively. If you type <code>make</code> in a source +directory such as <samp>gdb-13.2.90.20231008-git</samp> (or in a separate configured +directory configured with ‘<samp>--srcdir=<var>dirname</var>/gdb-13.2.90.20231008-git</samp>’), you +will build all the required libraries, and then build GDB. +</p> +<p>When you have multiple hosts or targets configured in separate +directories, you can run <code>make</code> on them in parallel (for example, +if they are NFS-mounted on each of the hosts); they will not interfere +with each other. +</p> +<hr> +<div class="header"> +<p> +Next: <a href="Config-Names.html#Config-Names" accesskey="n" rel="next">Config Names</a>, Previous: <a href="Running-Configure.html#Running-Configure" accesskey="p" rel="previous">Running Configure</a>, Up: <a href="Installing-GDB.html#Installing-GDB" accesskey="u" rel="up">Installing GDB</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> |