89 lines
3.9 KiB
HTML
89 lines
3.9 KiB
HTML
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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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<!-- This file documents the GNU Assembler "as".
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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
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or any later version published by the Free Software Foundation;
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with no Invariant Sections, with no Front-Cover Texts, and with no
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Back-Cover Texts. A copy of the license is included in the
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section entitled "GNU Free Documentation License".
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-->
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<!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Using as: ESA/390 Notes</title>
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<meta name="description" content="Using as: ESA/390 Notes">
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<meta name="keywords" content="Using as: ESA/390 Notes">
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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="AS-Index.html#AS-Index" rel="index" title="AS Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="ESA_002f390_002dDependent.html#ESA_002f390_002dDependent" rel="up" title="ESA/390-Dependent">
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<link href="ESA_002f390-Options.html#ESA_002f390-Options" rel="next" title="ESA/390 Options">
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<link href="ESA_002f390_002dDependent.html#ESA_002f390_002dDependent" rel="prev" title="ESA/390-Dependent">
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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" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
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<a name="ESA_002f390-Notes"></a>
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<div class="header">
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<p>
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Next: <a href="ESA_002f390-Options.html#ESA_002f390-Options" accesskey="n" rel="next">ESA/390 Options</a>, Up: <a href="ESA_002f390_002dDependent.html#ESA_002f390_002dDependent" accesskey="u" rel="up">ESA/390-Dependent</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="Notes-2"></a>
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<h4 class="subsection">9.14.1 Notes</h4>
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<p>The ESA/390 <code>as</code> port is currently intended to be a back-end
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for the <small>GNU</small> <small>CC</small> compiler. It is not HLASM compatible, although
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it does support a subset of some of the HLASM directives. The only
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supported binary file format is ELF; none of the usual MVS/VM/OE/USS
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object file formats, such as ESD or XSD, are supported.
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</p>
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<p>When used with the <small>GNU</small> <small>CC</small> compiler, the ESA/390 <code>as</code>
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will produce correct, fully relocated, functional binaries, and has been
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used to compile and execute large projects. However, many aspects should
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still be considered experimental; these include shared library support,
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dynamically loadable objects, and any relocation other than the 31-bit
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relocation.
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</p>
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</body>
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</html>
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