| <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html> |
| <!-- This file documents the BFD library. |
| |
| Copyright (C) 1991 - 2013 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 "GNU General Public License" and "Funding |
| Free Software", the Front-Cover texts being (a) (see below), and with |
| the Back-Cover Texts being (b) (see below). A copy of the license is |
| included in the section entitled "GNU Free Documentation License". |
| |
| (a) The FSF's Front-Cover Text is: |
| |
| A GNU Manual |
| |
| (b) The FSF's Back-Cover Text is: |
| |
| You have freedom to copy and modify this GNU Manual, like GNU |
| software. Copies published by the Free Software Foundation raise |
| funds for GNU development. --> |
| <!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ --> |
| <head> |
| <title>Untitled Document: Performing the Final Link</title> |
| |
| <meta name="description" content="Untitled Document: Performing the Final Link"> |
| <meta name="keywords" content="Untitled Document: Performing the Final Link"> |
| <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="BFD-Index.html#BFD-Index" rel="index" title="BFD Index"> |
| <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> |
| <link href="Linker-Functions.html#Linker-Functions" rel="up" title="Linker Functions"> |
| <link href="Information-provided-by-the-linker.html#Information-provided-by-the-linker" rel="next" title="Information provided by the linker"> |
| <link href="Adding-symbols-from-an-archive.html#Adding-symbols-from-an-archive" rel="prev" title="Adding symbols from an archive"> |
| <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="Performing-the-Final-Link"></a> |
| <div class="header"> |
| <p> |
| Previous: <a href="Adding-Symbols-to-the-Hash-Table.html#Adding-Symbols-to-the-Hash-Table" accesskey="p" rel="prev">Adding Symbols to the Hash Table</a>, Up: <a href="Linker-Functions.html#Linker-Functions" accesskey="u" rel="up">Linker Functions</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> |
| </div> |
| <hr> |
| <a name="Performing-the-final-link"></a> |
| <h4 class="subsection">2.17.3 Performing the final link</h4> |
| <a name="index-_005fbfd_005flink_005ffinal_005flink-in-target-vector"></a> |
| <a name="index-target-vector-_0028_005fbfd_005ffinal_005flink_0029"></a> |
| <p>When all the input files have been processed, the linker calls |
| the <code>_bfd_final_link</code> entry point of the output BFD. This |
| routine is responsible for producing the final output file, |
| which has several aspects. It must relocate the contents of |
| the input sections and copy the data into the output sections. |
| It must build an output symbol table including any local |
| symbols from the input files and the global symbols from the |
| hash table. When producing relocatable output, it must |
| modify the input relocs and write them into the output file. |
| There may also be object format dependent work to be done. |
| </p> |
| <p>The linker will also call the <code>write_object_contents</code> entry |
| point when the BFD is closed. The two entry points must work |
| together in order to produce the correct output file. |
| </p> |
| <p>The details of how this works are inevitably dependent upon |
| the specific object file format. The a.out |
| <code>_bfd_final_link</code> routine is <code>NAME(aout,final_link)</code>. |
| </p> |
| <table class="menu" border="0" cellspacing="0"> |
| <tr><td align="left" valign="top">• <a href="Information-provided-by-the-linker.html#Information-provided-by-the-linker" accesskey="1">Information provided by the linker</a>:</td><td> </td><td align="left" valign="top"> |
| </td></tr> |
| <tr><td align="left" valign="top">• <a href="Relocating-the-section-contents.html#Relocating-the-section-contents" accesskey="2">Relocating the section contents</a>:</td><td> </td><td align="left" valign="top"> |
| </td></tr> |
| <tr><td align="left" valign="top">• <a href="Writing-the-symbol-table.html#Writing-the-symbol-table" accesskey="3">Writing the symbol table</a>:</td><td> </td><td align="left" valign="top"> |
| </td></tr> |
| </table> |
| |
| |
| |
| |
| </body> |
| </html> |
