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| <h1>Release notes for <tt>checker-XXX</tt> builds</h1> |
| |
| <h4 id="checker_258">checker-258</h4> |
| |
| <p><b>built:</b>October 13, 2011<br> |
| <b>download:</b> <a href="/checker/checker-258.tar.bz2">checker-258.tar.bz2</a></p> |
| <p><b>highlights:</b></p> |
| |
| <ul> |
| <li>Contains a newer version of the analyzer than the one shipped in Xcode 4.2.</li> |
| <li>Adds a new security checker for looking at correct uses of the Mac OS KeyChain API.</li> |
| <li>Supports ARC (please file bugs where you see issues)</li> |
| <li>Major under-the-cover changes. This should result in more precise results in some cases, but this is laying the groundwork for major improvements. Please file bugs where you see regressions or issues.</li> |
| </ul> |
| |
| <h4 id="checker_257">checker-257</h4> |
| |
| <p><b>built:</b>May 25, 2011<br> |
| <b>download:</b> <a href="/checker/checker-257.tar.bz2">checker-257.tar.bz2</a></p> |
| <p><b>highlights:</b></p> |
| |
| <ul> |
| <li>The analyzer is now far more aggressive with checking conformance with Core Foundation conventions. Any function that returns a CF type must now obey the Core Foundation naming conventions, or use the <a href="/annotations.html#attr_cf_returns_retained">cf_returns_retained</a> or <a href="/annotations.html#attr_cf_returns_not_retained">cf_returns_not_retained</a> annotations.</li> |
| <li>Fixed a serious regression where the analyzer would not analyze Objective-C methods in class extensions.</li> |
| <li>Misc. bug fixes to improve analyzer precision. |
| </li> |
| </ul> |
| |
| <h4 id="checker_256">checker-256</h4> |
| |
| <p><b>built:</b>April 13, 2011<br> |
| <b>download:</b> <a href="/checker/checker-256.tar.bz2">checker-256.tar.bz2</a></p> |
| <p><b>highlights:</b></p> |
| |
| <ul> |
| <li>Lots of bug fixes and improvements to analyzer precision (fewer false positives, possibly more bugs found). |
| <li>Introductory analysis support for C++ and Objective-C++. |
| </ul> |
| |
| <p>This build contains basic support for C++ and Objective-C++ that is ready to be tried out |
| by general users. It is still in its infancy, but establishes a baseline for things to come. The main hope is that it can find some |
| issues and have a reasonable false positive rate.</p> |
| |
| <p><b>Please</b> <a href="/filing_bugs.html">file bugs</a> when you see issues of any kind so we can assess |
| where development on C++ analysis support needs to be focused.</p> |
| |
| <p>To try out C++ analysis support, it should work out of the box using <tt>scan-build</tt>. If you are using this checker build |
| as a replacement to the analyzer bundled with Xcode, first use the <tt>set-xcode-analyzer</tt> script to <a href="/xcode.html">change Xcode to use |
| your version of the analyzer</a>. You will then need to modify one configuration file in Xcode to enable C++ analysis support. This can |
| be done with the following steps:</p> |
| |
| <ol> |
| <li>Find the clang .xcspec file: |
| <pre>$ cd /Developer/Library |
| $ find . | grep xcspec | grep Clang |
| ./Xcode/<b><SNIP></b>/Clang LLVM 1.0.xcplugin/Contents/Resources/Clang LLVM 1.0.xcspec |
| </pre></li> |
| <li>The exact location of the file may vary depending on your installation of Xcode. Edit that file, and look for the string "--analyze": |
| <pre> |
| SourceFileOption = "--analyze"; |
| FileTypes = ( |
| "sourcecode.c.c", |
| "sourcecode.c.objc", |
| ); |
| ... |
| </pre> |
| Change the "FileTypes" entry to: |
| <pre> |
| FileTypes = ( |
| "sourcecode.c.c", |
| "sourcecode.c.objc", |
| "sourcecode.cpp.cpp", |
| "sourcecode.cpp.objcpp", |
| ); |
| </pre></li> |
| <li>Restart Xcode.</li> |
| </ol> |
| |
| <h4 id="checker_255">checker-255</h4> |
| |
| <p><b>built:</b> February 11, 2011<br> |
| <b>download:</b> <a href="/checker/checker-255.tar.bz2">checker-255.tar.bz2</a></p> |
| <p><b>highlights:</b></p> |
| |
| <ul> |
| <li>Mac OS X builds are now Intel <tt>i386</tt> and <tt>x86_64</tt> only (no <tt>ppc</tt> support)</li> |
| <li>Turns on new <tt>-init</tt> method checker by default</li> |
| <li>Reduces memory usage of analyzer by 10%</li> |
| <li>Misc. fixes to reduce false positives on dead stores and idempotent operations.</li> |
| </ul> |
| |
| <h4 id="checker_254">checker-254</h4> |
| |
| <p><b>built:</b> January 27, 2011<br> |
| <b>download:</b> <a href="/checker/checker-254.tar.bz2">checker-254.tar.bz2</a></p> |
| <p><b>highlights:</b></p> |
| |
| <ul> |
| <li>Introduces new <tt>-init</tt> method checker to check if a super class's init method is properly called.</li> |
| <li>Objective-C retain/release checker now reasons about calls to property accessor methods (setter/getter).</li> |
| <li>Introduces new attribute <a href="annotations.html#attr_ns_consumes_self">ns_consumes_self</a> to educate the Objective-C retain/release checker about custom "init-like" methods that do not follow the standard Cocoa naming conventions.</li> |
| <li>Introduces new attributes <a href="annotations.html#attr_ns_consumed">ns_consumed</a> and <a href="annotations.html#attr_cf_consumed">cf_consumed</a> to educate the Objective-C retain/release checker about methods/functions that decrement the reference count of a parameter.</li> |
| </ul> |
| |
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