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| <!DOCTYPE html> | ||
| <html lang="en"> | ||
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| <head> | ||
| <meta charset="utf-8" /> | ||
| <title>Swift.org - The Swift Linux Port</title> | ||
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| <meta name="twitter:title" content="The Swift Linux Port" /> | ||
| <meta name="twitter:description" content="With the launch of the open source Swift project, we are also releasing | ||
| a port that works with the Linux operating system! You can build it from | ||
| the Swift sources or download pre-built binaries for Ubuntu. The port | ||
| is still a work in progress but we’re happy to say that it is usable | ||
| today for experimentation. Currently x86_64 is the only supported | ||
| architecture on Linux. | ||
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| <meta property="og:title" content="The Swift Linux Port" /> | ||
| <meta property="og:url" content="https://swift.org/blog/swift-linux-port/" /> | ||
| <meta property="og:description" content="With the launch of the open source Swift project, we are also releasing | ||
| a port that works with the Linux operating system! You can build it from | ||
| the Swift sources or download pre-built binaries for Ubuntu. The port | ||
| is still a work in progress but we’re happy to say that it is usable | ||
| today for experimentation. Currently x86_64 is the only supported | ||
| architecture on Linux. | ||
| " /> | ||
| <meta property="article:published_time" content="2015-12-03T03:01:01-08:00" /> | ||
| <meta property="article:modified_time" content="2015-12-23T18:39:10-08:00" /> | ||
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| <article class="post"> | ||
| <header> | ||
| <h1>The Swift Linux Port</h1> | ||
| <time pubdate datetime="2015-12-03T03:01:01-08:00">December 3, 2015</time> | ||
| </header> | ||
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| <p>With the launch of the open source Swift project, we are also releasing | ||
| a port that works with the Linux operating system! You can build it from | ||
| the Swift sources or <a href="/download/">download pre-built binaries for Ubuntu</a>. The port | ||
| is still a work in progress but we’re happy to say that it is usable | ||
| today for experimentation. Currently x86_64 is the only supported | ||
| architecture on Linux.</p> | ||
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| <p>Here are a few highlights of what’s working in the port today:</p> | ||
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| <ul> | ||
| <li> | ||
| <p><strong>Swift without the Objective-C Runtime</strong>: Swift on Linux does not | ||
| depend on the Objective-C runtime nor includes it. While Swift was | ||
| designed to interoperate closely with Objective-C when it is present, | ||
| it was also designed to work in environments where the Objective-C | ||
| runtime does not exist.</p> | ||
| </li> | ||
| <li> | ||
| <p><strong>The core Swift Language and <a href="/compiler-stdlib/">Standard Library</a></strong> on Linux shares most of | ||
| the same implementation and APIs as on Apple platforms. There are some | ||
| slight differences of behavior because of the absence of the | ||
| Objective-C runtime on Linux (noted below).</p> | ||
| </li> | ||
| <li> | ||
| <p><strong>The Glibc Module</strong>: Most of the Linux C standard library is available | ||
| through this module similar to the Darwin module on Apple platforms. | ||
| Some headers aren’t yet imported into the module, such as tgmath.h.</p> | ||
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| <p>To try it out, just <code class="highlighter-rouge">import Glibc</code>.</p> | ||
| </li> | ||
| <li> | ||
| <p><strong>Swift Core Libraries</strong>: The <a href="/core-libraries/">Core Libraries</a> provide implementations | ||
| of core APIs from Foundation and XCTest to be used on Linux without | ||
| Objective-C . The intention is that these APIs are available in a | ||
| cross-platform manner regardless of whether you are using Swift on | ||
| Apple’s platforms or Swift on Linux.</p> | ||
| </li> | ||
| <li> | ||
| <p><strong>LLDB Swift debugging and the REPL</strong>: You can <a href="/getting-started/#using-the-lldb-debugger">debug your Swift | ||
| binaries</a> and <a href="/getting-started/#using-the-repl">experiment in the REPL</a> just like you do on OS X.</p> | ||
| </li> | ||
| <li> | ||
| <p><strong>The Swift Package Manager</strong> is a first class citizen as it is on | ||
| Apple’s platforms.</p> | ||
| </li> | ||
| </ul> | ||
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| <p>Here are some things that aren’t quite working yet or are planned for | ||
| the future:</p> | ||
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| <ul> | ||
| <li> | ||
| <p><strong>libdispatch</strong>: Part of the Core Libraries, updated Linux support is | ||
| in progress. You can follow development on the <a href="https://github.com/apple/swift-corelibs-libdispatch">libdispatch project on | ||
| GitHub</a>.</p> | ||
| </li> | ||
| <li> | ||
| <p><strong>Some C APIs</strong>: Although this is generally true for all of our | ||
| supported platforms, a few constructs in C aren’t imported yet into | ||
| Swift. This will cause some APIs to be unavailable, such as those that | ||
| contain varargs / <code class="highlighter-rouge">va_list</code>. However, in recent months Swift’s | ||
| interoperability with C has significantly advanced, gaining support | ||
| for named and anonymous unions, anonymous structs, and bitfields.</p> | ||
| </li> | ||
| <li> | ||
| <p><strong>Some <code class="highlighter-rouge">String</code> APIs</strong>: The Standard Library’s <code class="highlighter-rouge">String</code> is missing implementations | ||
| of several important APIs because they are currently tied to the | ||
| implementation of <code class="highlighter-rouge">NSString</code> on Apple’s platforms.</p> | ||
| </li> | ||
| <li> | ||
| <p><strong>Runtime Introspection</strong>: When a Swift class on Apple’s platforms is | ||
| marked <code class="highlighter-rouge">@objc</code> or subclasses <code class="highlighter-rouge">NSObject</code> you can use the Objective-C | ||
| runtime to enumerate available methods on an object or call methods | ||
| using selectors. Such capabilities are absent because they depend on | ||
| the Objective-C runtime.</p> | ||
| </li> | ||
| <li> | ||
| <p><code class="highlighter-rouge">Array<T> as? Array<S></code>: Some mechanisms, such as casting | ||
| containers with different associated types, currently do not work as | ||
| they relied on bridging mechanisms with Objective-C.</p> | ||
| </li> | ||
| </ul> | ||
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| <p>We’re really excited to be able to release the open source project with | ||
| a great head start for Linux support that you can try right now! There | ||
| is still plenty of work to be done, so we hope to see you <a href="/contributing/">contribute to | ||
| Swift</a> to make the Linux port even more complete.</p> | ||
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| <footer> | ||
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| <a href="/blog/welcome/" rel="prev" title="Previous: The Swift.org Blog">The Swift.org Blog</a> | ||
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| <a href="/blog/swift-3-api-design/" rel="next" title="Next: Swift 3 API Design Guidelines">Swift 3 API Design Guidelines</a> | ||
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| <p class="copyright">Copyright © 2015 Apple Inc. All rights reserved.</p> | ||
| <p class="trademark">Swift and the Swift logo are trademarks of Apple Inc.</p> | ||
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