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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `protect_unix` mod in crate `wasmer_singlepass_backend`."><meta name="keywords" content="rust, rustlang, rust-lang, protect_unix"><title>wasmer_singlepass_backend::protect_unix - Rust</title><link rel="stylesheet" type="text/css" href="../../normalize.css"><link rel="stylesheet" type="text/css" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../dark.css"><link rel="stylesheet" type="text/css" href="../../light.css" id="themeStyle"><script src="../../storage.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="shortcut icon" href="https://wasmer.io/static/icons/favicon.ico"><style type="text/css">#crate-search{background-image:url("../../down-arrow.svg");}</style></head><body class="rustdoc mod"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../../wasmer_singlepass_backend/index.html'><div class='logo-container'><img src='https://avatars3.githubusercontent.com/u/44205449?s=200&v=4' alt='logo'></div></a><p class='location'>Module protect_unix</p><div class="sidebar-elems"><div class="block items"><ul><li><a href="#enums">Enums</a></li><li><a href="#constants">Constants</a></li><li><a href="#functions">Functions</a></li></ul></div><p class='location'><a href='../index.html'>wasmer_singlepass_backend</a></p><script>window.sidebarCurrent = {name: 'protect_unix', ty: 'mod', relpath: '../'};</script><script defer src="../sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><a id="settings-menu" href="../../settings.html"><img src="../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../../src/wasmer_singlepass_backend/protect_unix.rs.html#1-53' title='goto source code'>[src]</a></span><span class='in-band'>Module <a href='../index.html'>wasmer_singlepass_backend</a>::<wbr><a class="mod" href=''>protect_unix</a></span></h1><div class='docblock'><p>Installing signal handlers allows us to handle traps and out-of-bounds memory
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accesses that occur when runniing WebAssembly.</p>
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<p>This code is inspired by: https://github.com/pepyakin/wasmtime/commit/625a2b6c0815b21996e111da51b9664feb174622</p>
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<p>When a WebAssembly module triggers any traps, we perform recovery here.</p>
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<p>This module uses TLS (thread-local storage) to track recovery information. Since the four signals we're handling
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are very special, the async signal unsafety of Rust's TLS implementation generally does not affect the correctness here
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unless you have memory unsafety elsewhere in your code.</p>
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</div><h2 id='enums' class='section-header'><a href="#enums">Enums</a></h2>
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<table><tr class='module-item'><td><a class="enum" href="enum.CallProtError.html" title='wasmer_singlepass_backend::protect_unix::CallProtError enum'>CallProtError</a></td><td class='docblock-short'></td></tr></table><h2 id='constants' class='section-header'><a href="#constants">Constants</a></h2>
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<table><tr class='module-item'><td><a class="constant" href="constant.TRAP_EARLY_DATA.html" title='wasmer_singlepass_backend::protect_unix::TRAP_EARLY_DATA constant'>TRAP_EARLY_DATA</a></td><td class='docblock-short'></td></tr></table><h2 id='functions' class='section-header'><a href="#functions">Functions</a></h2>
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<table><tr class='module-item'><td><a class="fn" href="fn.call_protected.html" title='wasmer_singlepass_backend::protect_unix::call_protected fn'>call_protected</a></td><td class='docblock-short'></td></tr><tr class='module-item'><td><a class="fn" href="fn.throw.html" title='wasmer_singlepass_backend::protect_unix::throw fn'>throw</a><a title='unsafe function' href='#'><sup>⚠</sup></a></td><td class='docblock-short'></td></tr><tr class='module-item'><td><a class="fn" href="fn.trigger_trap.html" title='wasmer_singlepass_backend::protect_unix::trigger_trap fn'>trigger_trap</a><a title='unsafe function' href='#'><sup>⚠</sup></a></td><td class='docblock-short'></td></tr></table></section><section id="search" class="content hidden"></section><section class="footer"></section><aside id="help" class="hidden"><div><h1 class="hidden">Help</h1><div class="shortcuts"><h2>Keyboard Shortcuts</h2><dl><dt><kbd>?</kbd></dt><dd>Show this help dialog</dd><dt><kbd>S</kbd></dt><dd>Focus the search field</dd><dt><kbd>↑</kbd></dt><dd>Move up in search results</dd><dt><kbd>↓</kbd></dt><dd>Move down in search results</dd><dt><kbd>↹</kbd></dt><dd>Switch tab</dd><dt><kbd>⏎</kbd></dt><dd>Go to active search result</dd><dt><kbd>+</kbd></dt><dd>Expand all sections</dd><dt><kbd>-</kbd></dt><dd>Collapse all sections</dd></dl></div><div class="infos"><h2>Search Tricks</h2><p>Prefix searches with a type followed by a colon (e.g., <code>fn:</code>) to restrict the search to a given type.</p><p>Accepted types are: <code>fn</code>, <code>mod</code>, <code>struct</code>, <code>enum</code>, <code>trait</code>, <code>type</code>, <code>macro</code>, and <code>const</code>.</p><p>Search functions by type signature (e.g., <code>vec -> usize</code> or <code>* -> vec</code>)</p><p>Search multiple things at once by splitting your query with comma (e.g., <code>str,u8</code> or <code>String,struct:Vec,test</code>)</p></div></div></aside><script>window.rootPath = "../../";window.currentCrate = "wasmer_singlepass_backend";</script><script src="../../aliases.js"></script><script src="../../main.js"></script><script defer src="../../search-index.js"></script></body></html> |