<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <title>Available Checks</title> <link type="text/css" rel="stylesheet" href="menu.css"> <link type="text/css" rel="stylesheet" href="content.css"> <script type="text/javascript" src="scripts/menu.js"></script> <style type="text/css"> tr:first-child { width:20%; } </style> </head> <body> <div id="page"> <!--#include virtual="menu.html.incl"--> <div id="content"> <h1>Available Checks</h1> <h3>The list of the checks the analyzer performs by default</h3> <p> <table border="0" cellpadding="3" cellspacing="3" width="100%"> <!-- <tr> <th><h4>Checker Name</h4></th> <th><h4>Description</h4></th> </tr>--> <tr> <td><b>core.AdjustedReturnValue</b></td><td>Check to see if the return value of a function call is different than the caller expects (e.g., from calls through function pointers).</td> </tr> <tr> <td><b>core.CallAndMessage</b></td><td>Check for logical errors for function calls and Objective-C message expressions (e.g., uninitialized arguments, null function pointers).</td> </tr> <tr> <td><b>core.DivideZero</b></td><td>Check for division by zero.</td> </tr> <tr> <td><b>core.NonNullParamChecker</b></td><td>Check for null pointers passed as arguments to a function whose arguments are known to be non-null.</td> </tr> <tr> <td><b>core.NullDereference</b></td><td>Check for dereferences of null pointers.</td> </tr> <tr> <td><b>core.StackAddressEscape</b></td><td>Check that addresses to stack memory do not escape the function.</td> </tr> <tr> <td><b>core.UndefinedBinaryOperatorResult</b></td><td>Check for undefined results of binary operators.</td> </tr> <tr> <td><b>core.VLASize</b></td><td>Check for declarations of VLA of undefined or zero size.</td> </tr> <tr> <td><b>core.builtin.BuiltinFunctions</b></td><td>Evaluate compiler builtin functions (e.g., alloca()).</td> </tr> <tr> <td><b>core.builtin.NoReturnFunctions</b></td><td>Evaluate "panic" functions that are known to not return to the caller.</td> </tr> <tr> <td><b>core.uninitialized.ArraySubscript</b></td><td>Check for uninitialized values used as array subscripts.</td> </tr> <tr> <td><b>core.uninitialized.Assign</b></td><td>Check for assigning uninitialized values.</td> </tr> <tr> <td><b>core.uninitialized.Branch</b></td><td>Check for uninitialized values used as branch conditions.</td> </tr> <tr> <td><b>core.uninitialized.CapturedBlockVariable</b></td><td>Check for blocks that capture uninitialized values.</td> </tr> <tr> <td><b>core.uninitialized.UndefReturn</b></td><td>Check for uninitialized values being returned to the caller.</td> </tr> <tr> <td><b>cplusplus.NewDelete</b></td><td>Check for double-free and use-after-free problems involving C++ <code>delete</code>.</td> </tr> <tr> <td><b>deadcode.DeadStores</b></td><td>Check for values stored to variables that are never read afterwards.</td> </tr> <!-- <tr> <td><b>deadcode.IdempotentOperations</b></td><td>Warn about idempotent operations.</td> </tr> --> <tr> <td><b>osx.API</b></td><td>Check for proper uses of various Apple APIs.</td> </tr> <tr> <td><b>osx.SecKeychainAPI</b></td><td>Check for proper uses of Secure Keychain APIs.</td> </tr> <tr> <td><b>osx.cocoa.AtSync</b></td><td>Check for nil pointers used as mutexes for @synchronized.</td> </tr> <tr> <td><b>osx.cocoa.ClassRelease</b></td><td>Check for sending 'retain', 'release', or 'autorelease' directly to a Class.</td> </tr> <tr> <td><b>osx.cocoa.IncompatibleMethodTypes</b></td><td>Warn about Objective-C method signatures with type incompatibilities.</td> </tr> <tr> <td><b>osx.cocoa.NSAutoreleasePool</b></td><td>Warn for suboptimal uses of NSAutoreleasePool in Objective-C GC mode.</td> </tr> <tr> <td><b>osx.cocoa.NSError</b></td><td>Check usage of NSError** parameters.</td> </tr> <tr> <td><b>osx.cocoa.NilArg</b></td><td>Check for prohibited nil arguments to ObjC method calls.</td> </tr> <tr> <td><b>osx.cocoa.RetainCount</b></td><td>Check for leaks and improper reference count management.</td> </tr> <tr> <td><b>osx.cocoa.SelfInit</b></td><td>Check that 'self' is properly initialized inside an initializer method.</td> </tr> <tr> <td><b>osx.cocoa.UnusedIvars</b></td><td>Warn about private ivars that are never used.</td> </tr> <tr> <td><b>osx.cocoa.VariadicMethodTypes</b></td><td>Check for passing non-Objective-C types to variadic methods that expect only Objective-C types.</td> </tr> <tr> <td><b>osx.coreFoundation.CFError</b></td><td>Check usage of CFErrorRef* parameters.</td> </tr> <tr> <td><b>osx.coreFoundation.CFNumber</b></td><td>Check for proper uses of CFNumberCreate.</td> </tr> <tr> <td><b>osx.coreFoundation.CFRetainRelease</b></td><td>Check for null arguments to CFRetain/CFRelease/CFMakeCollectable.</td> </tr> <tr> <td><b>osx.coreFoundation.containers.OutOfBounds</b></td><td>Checks for index out-of-bounds when using 'CFArray' API.</td> </tr> <tr> <td><b>osx.coreFoundation.containers.PointerSizedValues</b></td><td>Warns if 'CFArray', 'CFDictionary', 'CFSet' are created with non-pointer-size values.</td> </tr> <tr> <td><b>security.FloatLoopCounter</b></td><td>Warn on using a floating point value as a loop counter (CERT: FLP30-C, FLP30-CPP).</td> </tr> <tr> <td><b>security.insecureAPI.UncheckedReturn</b></td><td>Warn on uses of functions whose return values must be always checked.</td> </tr> <tr> <td><b>security.insecureAPI.getpw</b></td><td>Warn on uses of the 'getpw' function.</td> </tr> <tr> <td><b>security.insecureAPI.gets</b></td><td>Warn on uses of the 'gets' function.</td> </tr> <tr> <td><b>security.insecureAPI.mkstemp</b></td><td>Warn when 'mkstemp' is passed fewer than 6 X's in the format string.</td> </tr> <tr> <td><b>security.insecureAPI.mktemp</b></td><td>Warn on uses of the 'mktemp' function.</td> </tr> <tr> <td><b>security.insecureAPI.rand</b></td><td>Warn on uses of the 'rand', 'random', and related functions.</td> </tr> <tr> <td><b>security.insecureAPI.strcpy</b></td><td>Warn on uses of the 'strcpy' and 'strcat' functions.</td> </tr> <tr> <td><b>security.insecureAPI.vfork</b></td><td>Warn on uses of the 'vfork' function.</td> </tr> <tr> <td><b>unix.API</b></td><td>Check calls to various UNIX/Posix functions.</td> </tr> <tr> <td><b>unix.Malloc</b></td><td>Check for memory leaks, double free, and use-after-free problems involving <code>malloc</code>.</td> </tr> <tr> <td><b>unix.MallocSizeof</b></td><td>Check for dubious malloc arguments involving sizeof.</td> </tr> <tr> <td><b>unix.MismatchedDeallocator</b></td><td>Check for mismatched deallocators (e.g. passing a pointer allocating with <code>new</code> to <code>free()</code>).</td> </tr> <tr> <td><b>unix.cstring.BadSizeArg</b></td><td>Check the size argument passed into C string functions for common erroneous patterns.</td> </tr> <tr> <td><b>unix.cstring.NullArg</b></td><td>Check for null pointers being passed as arguments to C string functions.</td> </table> <p>In addition to these the analyzer contains numerous experimental (alpha) checkers.</p> <h3>Writeups with examples of some of the bugs that the analyzer finds</h3> <ul> <li><a href="http://www.mobileorchard.com/bug-finding-with-clang-5-resources-to-get-you-started/">Bug Finding With Clang: 5 Resources To Get You Started</a></li> <li><a href="http://fruitstandsoftware.com/blog/index.php/2008/08/finding-memory-leaks-with-the-llvmclang-static-analyzer/#comment-2">Finding Memory Leaks With The LLVM/Clang Static Analyzer</a></li> <li><a href="http://www.rogueamoeba.com/utm/2008/07/14/the-clang-static-analyzer/">Under the Microscope - The Clang Static Analyzer</a></li> <li><a href="http://www.mikeash.com/?page=pyblog/friday-qa-2009-03-06-using-the-clang-static-analyzer.html">Mike Ash - Using the Clang Static Analyzer</a></li> </ul> </div> </div> </body> </html>