<html lang="en"> <head> <title>mmo - Untitled</title> <meta http-equiv="Content-Type" content="text/html"> <meta name="description" content="Untitled"> <meta name="generator" content="makeinfo 4.13"> <link title="Top" rel="start" href="index.html#Top"> <link rel="up" href="BFD-back-ends.html#BFD-back-ends" title="BFD back ends"> <link rel="prev" href="elf.html#elf" title="elf"> <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> <!-- This file documents the BFD library. Copyright (C) 1991-2015 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.--> <meta http-equiv="Content-Style-Type" content="text/css"> <style type="text/css"><!-- pre.display { font-family:inherit } pre.format { font-family:inherit } pre.smalldisplay { font-family:inherit; font-size:smaller } pre.smallformat { font-family:inherit; font-size:smaller } pre.smallexample { font-size:smaller } pre.smalllisp { font-size:smaller } span.sc { font-variant:small-caps } span.roman { font-family:serif; font-weight:normal; } span.sansserif { font-family:sans-serif; font-weight:normal; } --></style> </head> <body> <div class="node"> <a name="mmo"></a> <p> Previous: <a rel="previous" accesskey="p" href="elf.html#elf">elf</a>, Up: <a rel="up" accesskey="u" href="BFD-back-ends.html#BFD-back-ends">BFD back ends</a> <hr> </div> <h3 class="section">3.5 mmo backend</h3> <p>The mmo object format is used exclusively together with Professor Donald E. Knuth's educational 64-bit processor MMIX. The simulator <samp><span class="command">mmix</span></samp> which is available at <a href="http://mmix.cs.hm.edu/src/index.html">http://mmix.cs.hm.edu/src/index.html</a> understands this format. That package also includes a combined assembler and linker called <samp><span class="command">mmixal</span></samp>. The mmo format has no advantages feature-wise compared to e.g. ELF. It is a simple non-relocatable object format with no support for archives or debugging information, except for symbol value information and line numbers (which is not yet implemented in BFD). See <a href="http://mmix.cs.hm.edu/">http://mmix.cs.hm.edu/</a> for more information about MMIX. The ELF format is used for intermediate object files in the BFD implementation. <!-- We want to xref the symbol table node. A feature in "chew" --> <!-- requires that "commands" do not contain spaces in the --> <!-- arguments. Hence the hyphen in "Symbol-table". --> <ul class="menu"> <li><a accesskey="1" href="File-layout.html#File-layout">File layout</a> <li><a accesskey="2" href="Symbol_002dtable.html#Symbol_002dtable">Symbol-table</a> <li><a accesskey="3" href="mmo-section-mapping.html#mmo-section-mapping">mmo section mapping</a> </ul> </body></html>