1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 2 "http://www.w3.org/TR/html4/strict.dtd"> 3 <html> 4 <head> 5 <title>Available Checks</title> 6 <link type="text/css" rel="stylesheet" href="menu.css"> 7 <link type="text/css" rel="stylesheet" href="content.css"> 8 <script type="text/javascript" src="scripts/menu.js"></script> 9 <style type="text/css"> 10 tr:first-child { width:20%; } 11 </style> 12 </head> 13 <body> 14 15 <div id="page"> 16 <!--#include virtual="menu.html.incl"--> 17 18 <div id="content"> 19 20 <h1>Available Checks</h1> 21 22 <h3>The list of the checks the analyzer performs by default</h3> 23 <p> 24 <table border="0" cellpadding="3" cellspacing="3" width="100%"> 25 <!-- <tr> 26 <th><h4>Checker Name</h4></th> 27 <th><h4>Description</h4></th> 28 </tr>--> 29 <tr> 30 <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> 31 </tr> 32 <tr> 33 <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> 34 </tr> 35 <tr> 36 <td><b>core.DivideZero</b></td><td>Check for division by zero.</td> 37 </tr> 38 <tr> 39 <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> 40 </tr> 41 <tr> 42 <td><b>core.NullDereference</b></td><td>Check for dereferences of null pointers.</td> 43 </tr> 44 <tr> 45 <td><b>core.StackAddressEscape</b></td><td>Check that addresses to stack memory do not escape the function.</td> 46 </tr> 47 <tr> 48 <td><b>core.UndefinedBinaryOperatorResult</b></td><td>Check for undefined results of binary operators.</td> 49 </tr> 50 <tr> 51 <td><b>core.VLASize</b></td><td>Check for declarations of VLA of undefined or zero size.</td> 52 </tr> 53 <tr> 54 <td><b>core.builtin.BuiltinFunctions</b></td><td>Evaluate compiler builtin functions (e.g., alloca()).</td> 55 </tr> 56 <tr> 57 <td><b>core.builtin.NoReturnFunctions</b></td><td>Evaluate "panic" functions that are known to not return to the caller.</td> 58 </tr> 59 <tr> 60 <td><b>core.uninitialized.ArraySubscript</b></td><td>Check for uninitialized values used as array subscripts.</td> 61 </tr> 62 <tr> 63 <td><b>core.uninitialized.Assign</b></td><td>Check for assigning uninitialized values.</td> 64 </tr> 65 <tr> 66 <td><b>core.uninitialized.Branch</b></td><td>Check for uninitialized values used as branch conditions.</td> 67 </tr> 68 <tr> 69 <td><b>core.uninitialized.CapturedBlockVariable</b></td><td>Check for blocks that capture uninitialized values.</td> 70 </tr> 71 <tr> 72 <td><b>core.uninitialized.UndefReturn</b></td><td>Check for uninitialized values being returned to the caller.</td> 73 </tr> 74 <tr> 75 <td><b>cplusplus.NewDelete</b></td><td>Check for double-free and use-after-free problems involving C++ <code>delete</code>.</td> 76 </tr> 77 <tr> 78 <td><b>deadcode.DeadStores</b></td><td>Check for values stored to variables that are never read afterwards.</td> 79 </tr> 80 <!-- 81 <tr> 82 <td><b>deadcode.IdempotentOperations</b></td><td>Warn about idempotent operations.</td> 83 </tr> 84 --> 85 <tr> 86 <td><b>osx.API</b></td><td>Check for proper uses of various Apple APIs.</td> 87 </tr> 88 <tr> 89 <td><b>osx.SecKeychainAPI</b></td><td>Check for proper uses of Secure Keychain APIs.</td> 90 </tr> 91 <tr> 92 <td><b>osx.cocoa.AtSync</b></td><td>Check for nil pointers used as mutexes for @synchronized.</td> 93 </tr> 94 <tr> 95 <td><b>osx.cocoa.ClassRelease</b></td><td>Check for sending 'retain', 'release', or 'autorelease' directly to a Class.</td> 96 </tr> 97 <tr> 98 <td><b>osx.cocoa.IncompatibleMethodTypes</b></td><td>Warn about Objective-C method signatures with type incompatibilities.</td> 99 </tr> 100 <tr> 101 <td><b>osx.cocoa.NSAutoreleasePool</b></td><td>Warn for suboptimal uses of NSAutoreleasePool in Objective-C GC mode.</td> 102 </tr> 103 <tr> 104 <td><b>osx.cocoa.NSError</b></td><td>Check usage of NSError** parameters.</td> 105 </tr> 106 <tr> 107 <td><b>osx.cocoa.NilArg</b></td><td>Check for prohibited nil arguments to ObjC method calls.</td> 108 </tr> 109 <tr> 110 <td><b>osx.cocoa.RetainCount</b></td><td>Check for leaks and improper reference count management.</td> 111 </tr> 112 <tr> 113 <td><b>osx.cocoa.SelfInit</b></td><td>Check that 'self' is properly initialized inside an initializer method.</td> 114 </tr> 115 <tr> 116 <td><b>osx.cocoa.UnusedIvars</b></td><td>Warn about private ivars that are never used.</td> 117 </tr> 118 <tr> 119 <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> 120 </tr> 121 <tr> 122 <td><b>osx.coreFoundation.CFError</b></td><td>Check usage of CFErrorRef* parameters.</td> 123 </tr> 124 <tr> 125 <td><b>osx.coreFoundation.CFNumber</b></td><td>Check for proper uses of CFNumberCreate.</td> 126 </tr> 127 <tr> 128 <td><b>osx.coreFoundation.CFRetainRelease</b></td><td>Check for null arguments to CFRetain/CFRelease/CFMakeCollectable.</td> 129 </tr> 130 <tr> 131 <td><b>osx.coreFoundation.containers.OutOfBounds</b></td><td>Checks for index out-of-bounds when using 'CFArray' API.</td> 132 </tr> 133 <tr> 134 <td><b>osx.coreFoundation.containers.PointerSizedValues</b></td><td>Warns if 'CFArray', 'CFDictionary', 'CFSet' are created with non-pointer-size values.</td> 135 </tr> 136 <tr> 137 <td><b>security.FloatLoopCounter</b></td><td>Warn on using a floating point value as a loop counter (CERT: FLP30-C, FLP30-CPP).</td> 138 </tr> 139 <tr> 140 <td><b>security.insecureAPI.UncheckedReturn</b></td><td>Warn on uses of functions whose return values must be always checked.</td> 141 </tr> 142 <tr> 143 <td><b>security.insecureAPI.getpw</b></td><td>Warn on uses of the 'getpw' function.</td> 144 </tr> 145 <tr> 146 <td><b>security.insecureAPI.gets</b></td><td>Warn on uses of the 'gets' function.</td> 147 </tr> 148 <tr> 149 <td><b>security.insecureAPI.mkstemp</b></td><td>Warn when 'mkstemp' is passed fewer than 6 X's in the format string.</td> 150 </tr> 151 <tr> 152 <td><b>security.insecureAPI.mktemp</b></td><td>Warn on uses of the 'mktemp' function.</td> 153 </tr> 154 <tr> 155 <td><b>security.insecureAPI.rand</b></td><td>Warn on uses of the 'rand', 'random', and related functions.</td> 156 </tr> 157 <tr> 158 <td><b>security.insecureAPI.strcpy</b></td><td>Warn on uses of the 'strcpy' and 'strcat' functions.</td> 159 </tr> 160 <tr> 161 <td><b>security.insecureAPI.vfork</b></td><td>Warn on uses of the 'vfork' function.</td> 162 </tr> 163 <tr> 164 <td><b>unix.API</b></td><td>Check calls to various UNIX/Posix functions.</td> 165 </tr> 166 <tr> 167 <td><b>unix.Malloc</b></td><td>Check for memory leaks, double free, and use-after-free problems involving <code>malloc</code>.</td> 168 </tr> 169 <tr> 170 <td><b>unix.MallocSizeof</b></td><td>Check for dubious malloc arguments involving sizeof.</td> 171 </tr> 172 <tr> 173 <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> 174 </tr> 175 <tr> 176 <td><b>unix.cstring.BadSizeArg</b></td><td>Check the size argument passed into C string functions for common erroneous patterns.</td> 177 </tr> 178 <tr> 179 <td><b>unix.cstring.NullArg</b></td><td>Check for null pointers being passed as arguments to C string functions.</td> 180 </table> 181 182 <p>In addition to these the analyzer contains numerous experimental (alpha) checkers.</p> 183 184 <h3>Writeups with examples of some of the bugs that the analyzer finds</h3> 185 186 <ul> 187 <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> 188 <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> 189 <li><a href="http://www.rogueamoeba.com/utm/2008/07/14/the-clang-static-analyzer/">Under the Microscope - The Clang Static Analyzer</a></li> 190 <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> 191 </ul> 192 193 194 </div> 195 </div> 196 </body> 197 </html> 198 199
