105 lines
4.9 KiB
HTML
105 lines
4.9 KiB
HTML
<!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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<!-- This file documents the BFD library.
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Copyright (C) 1991-2016 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 "GNU General Public License" and "Funding
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Free Software", the Front-Cover texts being (a) (see below), and with
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the Back-Cover Texts being (b) (see below). A copy of the license is
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included in the section entitled "GNU Free Documentation License".
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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(b) The FSF's Back-Cover Text is:
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You have freedom to copy and modify this GNU Manual, like GNU
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funds for GNU development. -->
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<head>
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<title>Untitled Document: Information provided by the linker</title>
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<meta name="description" content="Untitled Document: Information provided by the linker">
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<meta name="keywords" content="Untitled Document: Information provided by the linker">
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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="BFD-Index.html#BFD-Index" rel="index" title="BFD Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Performing-the-Final-Link.html#Performing-the-Final-Link" rel="up" title="Performing the Final Link">
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<link href="Relocating-the-section-contents.html#Relocating-the-section-contents" rel="next" title="Relocating the section contents">
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<link href="Performing-the-Final-Link.html#Performing-the-Final-Link" rel="prev" title="Performing the Final Link">
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</head>
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<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
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<a name="Information-provided-by-the-linker"></a>
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<div class="header">
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<p>
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Next: <a href="Relocating-the-section-contents.html#Relocating-the-section-contents" accesskey="n" rel="next">Relocating the section contents</a>, Previous: <a href="Performing-the-Final-Link.html#Performing-the-Final-Link" accesskey="p" rel="prev">Performing the Final Link</a>, Up: <a href="Performing-the-Final-Link.html#Performing-the-Final-Link" accesskey="u" rel="up">Performing the Final Link</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="BFD-Index.html#BFD-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="Information-provided-by-the-linker-1"></a>
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<h4 class="subsubsection">2.17.3.1 Information provided by the linker</h4>
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<p>Before the linker calls the <code>_bfd_final_link</code> entry point,
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it sets up some data structures for the function to use.
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</p>
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<p>The <code>input_bfds</code> field of the <code>bfd_link_info</code> structure
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will point to a list of all the input files included in the
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link. These files are linked through the <code>link.next</code> field
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of the <code>bfd</code> structure.
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</p>
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<p>Each section in the output file will have a list of
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<code>link_order</code> structures attached to the <code>map_head.link_order</code>
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field (the <code>link_order</code> structure is defined in
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<code>bfdlink.h</code>). These structures describe how to create the
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contents of the output section in terms of the contents of
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various input sections, fill constants, and, eventually, other
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types of information. They also describe relocs that must be
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created by the BFD backend, but do not correspond to any input
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file; this is used to support -Ur, which builds constructors
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while generating a relocatable object file.
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</p>
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</body>
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</html>
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