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90 lines
4.1 KiB
HTML
90 lines
4.1 KiB
HTML
4 years ago
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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) 1991-2019 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 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>WebAssembly-Relocs (Using as)</title>
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<meta name="description" content="WebAssembly-Relocs (Using as)">
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<meta name="keywords" content="WebAssembly-Relocs (Using as)">
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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="WebAssembly_002dSyntax.html#WebAssembly_002dSyntax" rel="up" title="WebAssembly-Syntax">
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<link href="WebAssembly_002dSignatures.html#WebAssembly_002dSignatures" rel="next" title="WebAssembly-Signatures">
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<link href="WebAssembly_002dChars.html#WebAssembly_002dChars" rel="prev" title="WebAssembly-Chars">
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<style type="text/css">
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a.summary-letter {text-decoration: none}
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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">
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<a name="WebAssembly_002dRelocs"></a>
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<div class="header">
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<p>
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Next: <a href="WebAssembly_002dSignatures.html#WebAssembly_002dSignatures" accesskey="n" rel="next">WebAssembly-Signatures</a>, Previous: <a href="WebAssembly_002dChars.html#WebAssembly_002dChars" accesskey="p" rel="prev">WebAssembly-Chars</a>, Up: <a href="WebAssembly_002dSyntax.html#WebAssembly_002dSyntax" accesskey="u" rel="up">WebAssembly-Syntax</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="Relocations-5"></a>
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<h4 class="subsubsection">9.51.2.2 Relocations</h4>
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<a name="index-WebAssembly-relocations"></a>
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<a name="index-relocations_002c-WebAssembly"></a>
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<p>Special relocations are available by using the ‘<samp>@<var>plt</var></samp>’,
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‘<samp>@<var>got</var></samp>’, or ‘<samp>@<var>got</var></samp>’ suffixes after a constant
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expression, which correspond to the R_ASMJS_LEB128_PLT,
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R_ASMJS_LEB128_GOT, and R_ASMJS_LEB128_GOT_CODE relocations,
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respectively.
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</p>
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<p>The ‘<samp>@<var>plt</var></samp>’ suffix is followed by a symbol name in braces;
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the symbol value is used to determine the function signature for which
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a PLT stub is generated. Currently, the symbol <em>name</em> is parsed
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from its last ‘<samp>F</samp>’ character to determine the argument count of
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the function, which is also necessary for generating a PLT stub.
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</p>
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</body>
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</html>
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