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62 lines
2.7 KiB
HTML
62 lines
2.7 KiB
HTML
15 years ago
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<html lang="en">
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<head>
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<title>ESA/390 Notes - Using as</title>
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<meta http-equiv="Content-Type" content="text/html">
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<meta name="description" content="Using as">
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<meta name="generator" content="makeinfo 4.7">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="ESA_002f390_002dDependent.html#ESA_002f390_002dDependent" title="ESA/390-Dependent">
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<link rel="next" href="ESA_002f390-Options.html#ESA_002f390-Options" title="ESA/390 Options">
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<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
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<!--
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This file documents the GNU Assembler "as".
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Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001, 2002,
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2006, 2007 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 1.1
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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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man end-->
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<meta http-equiv="Content-Style-Type" content="text/css">
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<style type="text/css"><!--
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pre.display { font-family:inherit }
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pre.format { font-family:inherit }
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pre.smalldisplay { font-family:inherit; font-size:smaller }
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pre.smallformat { font-family:inherit; font-size:smaller }
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pre.smallexample { font-size:smaller }
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pre.smalllisp { font-size:smaller }
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span.sc { font-variant:small-caps }
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span.roman { font-family: serif; font-weight: normal; }
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--></style>
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</head>
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<body>
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<div class="node">
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<p>
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<a name="ESA_002f390-Notes"></a>Next: <a rel="next" accesskey="n" href="ESA_002f390-Options.html#ESA_002f390-Options">ESA/390 Options</a>,
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Up: <a rel="up" accesskey="u" href="ESA_002f390_002dDependent.html#ESA_002f390_002dDependent">ESA/390-Dependent</a>
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<hr><br>
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</div>
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<h4 class="subsection">9.12.1 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 <span class="sc">gnu</span> <span class="sc">cc</span> 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>When used with the <span class="sc">gnu</span> <span class="sc">cc</span> 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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</body></html>
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