1 {{+bindTo:partials.standard_nacl_article}} 2 3 <section id="welcome-to-native-client"> 4 <h1 id="welcome-to-native-client">Welcome to Native Client</h1> 5 <div id="home"> 6 <div class="pull-quote">To get the SDK and<br/>installation instructions<br/> 7 <a href="/native-client/sdk/download.html">visit the SDK Download page</a>. 8 </div> 9 <div class="big-intro"><p><strong>Native Client</strong> is a sandbox for running compiled C and C++ code in the 10 browser efficiently and securely, independent of the user’s operating system. 11 <strong>Portable Native Client</strong> extends that technology with 12 architecture independence, letting developers compile their code once to run 13 in any website and on any architecture with ahead-of-time (AOT) translation.</p> 14 <p>In short, Native Client brings the <strong>performance</strong> and <strong>low-level control</strong> 15 of native code to modern web browsers, without sacrificing the <strong>security</strong> and 16 <strong>portability</strong> of the web. Watch the video below for an overview of 17 Native Client, including its goals, how it works, and how 18 Portable Native Client lets developers run native compiled code on the web.</p> 19 <aside class="note"> 20 This site uses several examples of Native Client. For the best experience, 21 consider downloading the <a class="reference external" href="http://www.google.com/chrome/">latest version of Chrome</a>. When you come back, be sure to <a class="reference external" href="https://gonativeclient.appspot.com/demo">check out 22 our demos</a>. 23 </aside> 24 </div> 25 26 <iframe class="video" width="600" height="337" 27 src="//www.youtube.com/embed/MvKEomoiKBA?rel=0" frameborder="0"></iframe> 28 <div class="big-intro"><h2 id="two-types-of-modules">Two Types of Modules</h2> 29 <p>Native Client comes in two flavors.</p> 30 <ul class="small-gap"> 31 <li><strong>Portable Native Client (PNaCl)</strong>: Pronounced ‘pinnacle’, PNaCl runs single, 32 portable (<strong>pexe</strong>) executables and is available in most implementations of 33 Chrome. A translator built into Chrome translates the pexe into native code 34 for the client hardware. The entire module is translated before any code is 35 executed rather than as the code is executed. PNaCl modules can be hosted from 36 any web server.</li> 37 <li><strong>Native Client (NaCl)</strong>: Also called traditional or non-portable Native 38 Client, NaCl runs architecture-dependent (<strong>nexe</strong>) modules, which are 39 packaged into an application. At runtime, the browser decides which nexe to 40 load based on the architecture of the client machine. NaCl modules must be run 41 from the <a class="reference external" href="https://chrome.google.com/webstore/category/apps">Chrome Web Store (CWS)</a>. Fortunately, work from 42 PNaCl modules can be used to create NaCl modules.</li> 43 </ul> 44 <p>These flavors are described in more depth in <a class="reference internal" href="/native-client/nacl-and-pnacl.html"><em>PNaCl and NaCl</em></a></p> 45 <div class="left-side"> 46 <div class="left-side-inner"> 47 <h2>Hello World</h2> 48 <div class="big-intro"><p>To jump right in <a class="reference internal" href="/native-client/devguide/tutorial/tutorial-part1.html"><em>take the tutorial</em></a> 49 that walks you through a basic web application for Portable Native Client 50 (PNaCl). This is a client-side application that uses HTML, JavaScript, and a 51 Native Client module written in C++.</p> 52 </div> 53 </div> 54 </div> 55 <h2>A Little More Advanced</h2> 56 <div class="big-intro"><p>If you’ve already got the basics down, you’re probably trying to get a real 57 application ready for production. You’re <a class="reference internal" href="/native-client/devguide/devcycle/building.html"><em>building</em></a>, <a class="reference internal" href="/native-client/devguide/devcycle/debugging.html"><em>debugging</em></a> 58 or <a class="reference internal" href="/native-client/devguide/distributing.html"><em>ready to distribute</em></a>.</p> 59 </div> 60 61 <div class="left-side"> 62 <div class="left-side-inner"> 63 <h2>Nuts and Bolts</h2> 64 <div class="big-intro"><p>You’ve been working on a Native Client module for a while now and you’ve run 65 into an arcane problem. You may need to refer to the <a class="reference internal" href="/native-client/reference/pnacl-bitcode-abi.html"><em>PNaCl Bitcode 66 Reference</em></a> or the <a class="reference internal" href="/native-client/reference/sandbox_internals/index.html"><em>Sandbox internals</em></a>.</p> 67 </div> 68 </div> 69 </div><h2 id="i-want-to-know-everything">I Want to Know Everything</h2> 70 <p>So, you like to read now and try later. Start with our <a class="reference internal" href="/native-client/overview.html"><em>Technical Overview</em></a></p> 71 <div class="big-intro" style="clear: both;"><p>Send us questions, comments, and feedback: <a class="reference external" href="https://groups.google.com/forum/#!forum/native-client-discuss">native-client-discuss</a>.</p> 72 </div></section> 73 74 {{/partials.standard_nacl_article}} 75
