1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
|
//===--- Checkers.td - Static Analyzer Checkers -===-----------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
include "clang/StaticAnalyzer/Checkers/CheckerBase.td"
//===----------------------------------------------------------------------===//
// Packages.
//===----------------------------------------------------------------------===//
def Experimental : Package<"experimental">;
def Core : Package<"core">;
def CoreBuiltin : Package<"builtin">, InPackage<Core>;
def CoreUninitialized : Package<"uninitialized">, InPackage<Core>;
def CoreExperimental : Package<"core">, InPackage<Experimental>, Hidden;
def Cplusplus : Package<"cplusplus">;
def CplusplusExperimental : Package<"cplusplus">, InPackage<Experimental>, Hidden;
def DeadCode : Package<"deadcode">;
def DeadCodeExperimental : Package<"deadcode">, InPackage<Experimental>, Hidden;
def Security : Package <"security">;
def InsecureAPI : Package<"insecureAPI">, InPackage<Security>;
def SecurityExperimental : Package<"security">, InPackage<Experimental>; //, Hidden;
def Taint : Package<"taint">, InPackage<SecurityExperimental>, Hidden;
def Unix : Package<"unix">;
def UnixExperimental : Package<"unix">, InPackage<Experimental>, Hidden;
def CString : Package<"cstring">, InPackage<Unix>, Hidden;
def CStringExperimental : Package<"cstring">, InPackage<UnixExperimental>, Hidden;
def OSX : Package<"osx">;
def OSXExperimental : Package<"osx">, InPackage<Experimental>, Hidden;
def Cocoa : Package<"cocoa">, InPackage<OSX>;
def CocoaExperimental : Package<"cocoa">, InPackage<OSXExperimental>, Hidden;
def CoreFoundation : Package<"coreFoundation">, InPackage<OSX>;
def Containers : Package<"containers">, InPackage<CoreFoundation>;
def LLVM : Package<"llvm">;
def Debug : Package<"debug">;
//===----------------------------------------------------------------------===//
// Core Checkers.
//===----------------------------------------------------------------------===//
let ParentPackage = Core in {
def DereferenceChecker : Checker<"NullDereference">,
HelpText<"Check for dereferences of null pointers">,
DescFile<"DereferenceChecker.cpp">;
def CallAndMessageChecker : Checker<"CallAndMessage">,
HelpText<"Check for logical errors for function calls and Objective-C message expressions (e.g., uninitialized arguments, null function pointers)">,
DescFile<"CallAndMessageChecker.cpp">;
def AdjustedReturnValueChecker : Checker<"AdjustedReturnValue">,
HelpText<"Check to see if the return value of a function call is different than the caller expects (e.g., from calls through function pointers)">,
DescFile<"AdjustedReturnValueChecker.cpp">;
def AttrNonNullChecker : Checker<"AttributeNonNull">,
HelpText<"Check for null pointers passed as arguments to a function whose arguments are marked with the 'nonnull' attribute">,
DescFile<"AttrNonNullChecker.cpp">;
def VLASizeChecker : Checker<"VLASize">,
HelpText<"Check for declarations of VLA of undefined or zero size">,
DescFile<"VLASizeChecker.cpp">;
def DivZeroChecker : Checker<"DivideZero">,
HelpText<"Check for division by zero">,
DescFile<"DivZeroChecker.cpp">;
def UndefResultChecker : Checker<"UndefinedBinaryOperatorResult">,
HelpText<"Check for undefined results of binary operators">,
DescFile<"UndefResultChecker.cpp">;
def StackAddrEscapeChecker : Checker<"StackAddressEscape">,
HelpText<"Check that addresses to stack memory do not escape the function">,
DescFile<"StackAddrEscapeChecker.cpp">;
} // end "core"
let ParentPackage = CoreExperimental in {
def BoolAssignmentChecker : Checker<"BoolAssignment">,
HelpText<"Warn about assigning non-{0,1} values to Boolean variables">,
DescFile<"BoolAssignmentChecker.cpp">;
def CastSizeChecker : Checker<"CastSize">,
HelpText<"Check when casting a malloc'ed type T, whether the size is a multiple of the size of T">,
DescFile<"CastSizeChecker.cpp">;
def CastToStructChecker : Checker<"CastToStruct">,
HelpText<"Check for cast from non-struct pointer to struct pointer">,
DescFile<"CastToStructChecker.cpp">;
def FixedAddressChecker : Checker<"FixedAddr">,
HelpText<"Check for assignment of a fixed address to a pointer">,
DescFile<"FixedAddressChecker.cpp">;
def PointerArithChecker : Checker<"PointerArithm">,
HelpText<"Check for pointer arithmetic on locations other than array elements">,
DescFile<"PointerArithChecker">;
def PointerSubChecker : Checker<"PointerSub">,
HelpText<"Check for pointer subtractions on two pointers pointing to different memory chunks">,
DescFile<"PointerSubChecker">;
def SizeofPointerChecker : Checker<"SizeofPtr">,
HelpText<"Warn about unintended use of sizeof() on pointer expressions">,
DescFile<"CheckSizeofPointer.cpp">;
} // end "core.experimental"
//===----------------------------------------------------------------------===//
// Evaluate "builtin" functions.
//===----------------------------------------------------------------------===//
let ParentPackage = CoreBuiltin in {
def NoReturnFunctionChecker : Checker<"NoReturnFunctions">,
HelpText<"Evaluate \"panic\" functions that are known to not return to the caller">,
DescFile<"NoReturnFunctionChecker.cpp">;
def BuiltinFunctionChecker : Checker<"BuiltinFunctions">,
HelpText<"Evaluate compiler builtin functions (e.g., alloca())">,
DescFile<"BuiltinFunctionChecker.cpp">;
} // end "core.builtin"
//===----------------------------------------------------------------------===//
// Uninitialized values checkers.
//===----------------------------------------------------------------------===//
let ParentPackage = CoreUninitialized in {
def UndefinedArraySubscriptChecker : Checker<"ArraySubscript">,
HelpText<"Check for uninitialized values used as array subscripts">,
DescFile<"UndefinedArraySubscriptChecker.cpp">;
def UndefinedAssignmentChecker : Checker<"Assign">,
HelpText<"Check for assigning uninitialized values">,
DescFile<"UndefinedAssignmentChecker.cpp">;
def UndefBranchChecker : Checker<"Branch">,
HelpText<"Check for uninitialized values used as branch conditions">,
DescFile<"UndefBranchChecker.cpp">;
def UndefCapturedBlockVarChecker : Checker<"CapturedBlockVariable">,
HelpText<"Check for blocks that capture uninitialized values">,
DescFile<"UndefCapturedBlockVarChecker.cpp">;
def ReturnUndefChecker : Checker<"UndefReturn">,
HelpText<"Check for uninitialized values being returned to the caller">,
DescFile<"ReturnUndefChecker.cpp">;
} // end "core.uninitialized"
//===----------------------------------------------------------------------===//
// C++ checkers.
//===----------------------------------------------------------------------===//
let ParentPackage = CplusplusExperimental in {
def IteratorsChecker : Checker<"Iterators">,
HelpText<"Check improper uses of STL vector iterators">,
DescFile<"IteratorsChecker.cpp">;
def VirtualCallChecker : Checker<"VirtualCall">,
HelpText<"Check virtual function calls during construction or destruction">,
DescFile<"VirtualCallChecker.cpp">;
} // end: "cplusplus.experimental"
//===----------------------------------------------------------------------===//
// Deadcode checkers.
//===----------------------------------------------------------------------===//
let ParentPackage = DeadCode in {
def DeadStoresChecker : Checker<"DeadStores">,
HelpText<"Check for values stored to variables that are never read afterwards">,
DescFile<"DeadStoresChecker.cpp">;
} // end DeadCode
let ParentPackage = DeadCodeExperimental in {
def IdempotentOperationChecker : Checker<"IdempotentOperations">,
HelpText<"Warn about idempotent operations">,
DescFile<"IdempotentOperationChecker.cpp">;
def UnreachableCodeChecker : Checker<"UnreachableCode">,
HelpText<"Check unreachable code">,
DescFile<"UnreachableCodeChecker.cpp">;
} // end "deadcode.experimental"
//===----------------------------------------------------------------------===//
// Security checkers.
//===----------------------------------------------------------------------===//
let ParentPackage = InsecureAPI in {
def gets : Checker<"gets">,
HelpText<"Warn on uses of the 'gets' function">,
DescFile<"CheckSecuritySyntaxOnly.cpp">;
def getpw : Checker<"getpw">,
HelpText<"Warn on uses of the 'getpw' function">,
DescFile<"CheckSecuritySyntaxOnly.cpp">;
def mktemp : Checker<"mktemp">,
HelpText<"Warn on uses of the 'mktemp' function">,
DescFile<"CheckSecuritySyntaxOnly.cpp">;
def mkstemp : Checker<"mkstemp">,
HelpText<"Warn when 'mkstemp' is passed fewer than 6 X's in the format string">,
DescFile<"CheckSecuritySyntaxOnly.cpp">;
def rand : Checker<"rand">,
HelpText<"Warn on uses of the 'rand', 'random', and related functions">,
DescFile<"CheckSecuritySyntaxOnly.cpp">;
def strcpy : Checker<"strcpy">,
HelpText<"Warn on uses of the 'strcpy' and 'strcat' functions">,
DescFile<"CheckSecuritySyntaxOnly.cpp">;
def vfork : Checker<"vfork">,
HelpText<"Warn on uses of the 'vfork' function">,
DescFile<"CheckSecuritySyntaxOnly.cpp">;
def UncheckedReturn : Checker<"UncheckedReturn">,
HelpText<"Warn on uses of functions whose return values must be always checked">,
DescFile<"CheckSecuritySyntaxOnly.cpp">;
}
let ParentPackage = Security in {
def FloatLoopCounter : Checker<"FloatLoopCounter">,
HelpText<"Warn on using a floating point value as a loop counter (CERT: FLP30-C, FLP30-CPP)">,
DescFile<"CheckSecuritySyntaxOnly.cpp">;
}
let ParentPackage = SecurityExperimental in {
def ArrayBoundChecker : Checker<"ArrayBound">,
HelpText<"Warn about buffer overflows (older checker)">,
DescFile<"ArrayBoundChecker.cpp">;
def ArrayBoundCheckerV2 : Checker<"ArrayBoundV2">,
HelpText<"Warn about buffer overflows (newer checker)">,
DescFile<"ArrayBoundCheckerV2.cpp">;
def ReturnPointerRangeChecker : Checker<"ReturnPtrRange">,
HelpText<"Check for an out-of-bound pointer being returned to callers">,
DescFile<"ReturnPointerRangeChecker.cpp">;
def MallocOverflowSecurityChecker : Checker<"MallocOverflow">,
HelpText<"Check for overflows in the arguments to malloc()">,
DescFile<"MallocOverflowSecurityChecker.cpp">;
} // end "security.experimental"
//===----------------------------------------------------------------------===//
// Taint checkers.
//===----------------------------------------------------------------------===//
let ParentPackage = Taint in {
def GenericTaintChecker : Checker<"TaintPropagation">,
HelpText<"Generate taint information used by other checkers">,
DescFile<"GenericTaintChecker.cpp">;
} // end "experimental.security.taint"
//===----------------------------------------------------------------------===//
// Unix API checkers.
//===----------------------------------------------------------------------===//
let ParentPackage = Unix in {
def UnixAPIChecker : Checker<"API">,
HelpText<"Check calls to various UNIX/Posix functions">,
DescFile<"UnixAPIChecker.cpp">;
def MallocPessimistic : Checker<"Malloc">,
HelpText<"Check for memory leaks, double free, and use-after-free problems.">,
DescFile<"MallocChecker.cpp">;
} // end "unix"
let ParentPackage = UnixExperimental in {
def ChrootChecker : Checker<"Chroot">,
HelpText<"Check improper use of chroot">,
DescFile<"ChrootChecker.cpp">;
def MallocOptimistic : Checker<"MallocWithAnnotations">,
HelpText<"Check for memory leaks, double free, and use-after-free problems. Assumes that all user-defined functions which might free a pointer are annotated.">,
DescFile<"MallocChecker.cpp">;
def MallocSizeofChecker : Checker<"MallocSizeof">,
HelpText<"Check for dubious malloc arguments involving sizeof">,
DescFile<"MallocSizeofChecker.cpp">;
def PthreadLockChecker : Checker<"PthreadLock">,
HelpText<"Simple lock -> unlock checker">,
DescFile<"PthreadLockChecker.cpp">;
def StreamChecker : Checker<"Stream">,
HelpText<"Check stream handling functions">,
DescFile<"StreamChecker.cpp">;
} // end "unix.experimental"
let ParentPackage = CString in {
def CStringNullArg : Checker<"NullArg">,
HelpText<"Check for null pointers being passed as arguments to C string functions">,
DescFile<"CStringChecker.cpp">;
def CStringSyntaxChecker : Checker<"BadSizeArg">,
HelpText<"Check the size argument passed into C string functions for common erroneous patterns">,
DescFile<"CStringSyntaxChecker.cpp">;
}
let ParentPackage = CStringExperimental in {
def CStringOutOfBounds : Checker<"OutOfBounds">,
HelpText<"Check for out-of-bounds access in string functions">,
DescFile<"CStringChecker.cpp">;
def CStringBufferOverlap : Checker<"BufferOverlap">,
HelpText<"Checks for overlap in two buffer arguments">,
DescFile<"CStringChecker.cpp">;
def CStringNotNullTerm : Checker<"NotNullTerminated">,
HelpText<"Check for arguments which are not null-terminating strings">,
DescFile<"CStringChecker.cpp">;
}
//===----------------------------------------------------------------------===//
// Mac OS X, Cocoa, and Core Foundation checkers.
//===----------------------------------------------------------------------===//
let ParentPackage = OSX in {
def MacOSXAPIChecker : Checker<"API">,
InPackage<OSX>,
HelpText<"Check for proper uses of various Mac OS X APIs">,
DescFile<"MacOSXAPIChecker.cpp">;
def OSAtomicChecker : Checker<"AtomicCAS">,
InPackage<OSX>,
HelpText<"Evaluate calls to OSAtomic functions">,
DescFile<"OSAtomicChecker.cpp">;
def MacOSKeychainAPIChecker : Checker<"SecKeychainAPI">,
InPackage<OSX>,
HelpText<"Check for proper uses of Secure Keychain APIs">,
DescFile<"MacOSKeychainAPIChecker.cpp">;
} // end "macosx"
let ParentPackage = Cocoa in {
def ObjCAtSyncChecker : Checker<"AtSync">,
HelpText<"Check for null pointers used as mutexes for @synchronized">,
DescFile<"ObjCAtSyncChecker.cpp">;
def NilArgChecker : Checker<"NilArg">,
HelpText<"Check for prohibited nil arguments to ObjC method calls">,
DescFile<"BasicObjCFoundationChecks.cpp">;
def ClassReleaseChecker : Checker<"ClassRelease">,
HelpText<"Check for sending 'retain', 'release', or 'autorelease' directly to a Class">,
DescFile<"BasicObjCFoundationChecks.cpp">;
def VariadicMethodTypeChecker : Checker<"VariadicMethodTypes">,
HelpText<"Check for passing non-Objective-C types to variadic methods that expect "
"only Objective-C types">,
DescFile<"BasicObjCFoundationChecks.cpp">;
def NSAutoreleasePoolChecker : Checker<"NSAutoreleasePool">,
HelpText<"Warn for suboptimal uses of NSAutoreleasePool in Objective-C GC mode">,
DescFile<"NSAutoreleasePoolChecker.cpp">;
def ObjCMethSigsChecker : Checker<"IncompatibleMethodTypes">,
HelpText<"Warn about Objective-C method signatures with type incompatibilities">,
DescFile<"CheckObjCInstMethSignature.cpp">;
def ObjCUnusedIvarsChecker : Checker<"UnusedIvars">,
HelpText<"Warn about private ivars that are never used">,
DescFile<"ObjCUnusedIVarsChecker.cpp">;
def ObjCSelfInitChecker : Checker<"SelfInit">,
HelpText<"Check that 'self' is properly initialized inside an initializer method">,
DescFile<"ObjCSelfInitChecker.cpp">;
def NSErrorChecker : Checker<"NSError">,
HelpText<"Check usage of NSError** parameters">,
DescFile<"NSErrorChecker.cpp">;
def RetainCountChecker : Checker<"RetainCount">,
HelpText<"Check for leaks and improper reference count management">,
DescFile<"RetainCountChecker.cpp">;
} // end "cocoa"
let ParentPackage = CocoaExperimental in {
def ObjCDeallocChecker : Checker<"Dealloc">,
HelpText<"Warn about Objective-C classes that lack a correct implementation of -dealloc">,
DescFile<"CheckObjCDealloc.cpp">;
} // end "cocoa.experimental"
let ParentPackage = CoreFoundation in {
def CFNumberCreateChecker : Checker<"CFNumber">,
HelpText<"Check for proper uses of CFNumberCreate">,
DescFile<"BasicObjCFoundationChecks.cpp">;
def CFRetainReleaseChecker : Checker<"CFRetainRelease">,
HelpText<"Check for null arguments to CFRetain/CFRelease">,
DescFile<"BasicObjCFoundationChecks.cpp">;
def CFErrorChecker : Checker<"CFError">,
HelpText<"Check usage of CFErrorRef* parameters">,
DescFile<"NSErrorChecker.cpp">;
}
let ParentPackage = Containers in {
def ObjCContainersASTChecker : Checker<"PointerSizedValues">,
HelpText<"Warns if 'CFArray', 'CFDictionary', 'CFSet' are created with non-pointer-size values">,
DescFile<"ObjCContainersASTChecker.cpp">;
def ObjCContainersChecker : Checker<"OutOfBounds">,
HelpText<"Checks for index out-of-bounds when using 'CFArray' API">,
DescFile<"ObjCContainersChecker.cpp">;
}
//===----------------------------------------------------------------------===//
// Checkers for LLVM development.
//===----------------------------------------------------------------------===//
def LLVMConventionsChecker : Checker<"Conventions">,
InPackage<LLVM>,
HelpText<"Check code for LLVM codebase conventions">,
DescFile<"LLVMConventionsChecker.cpp">;
//===----------------------------------------------------------------------===//
// Debugging checkers (for analyzer development).
//===----------------------------------------------------------------------===//
let ParentPackage = Debug in {
def DominatorsTreeDumper : Checker<"DumpDominators">,
HelpText<"Print the dominance tree for a given CFG">,
DescFile<"DebugCheckers.cpp">;
def LiveVariablesDumper : Checker<"DumpLiveVars">,
HelpText<"Print results of live variable analysis">,
DescFile<"DebugCheckers.cpp">;
def CFGViewer : Checker<"ViewCFG">,
HelpText<"View Control-Flow Graphs using GraphViz">,
DescFile<"DebugCheckers.cpp">;
def CFGDumper : Checker<"DumpCFG">,
HelpText<"Display Control-Flow Graphs">,
DescFile<"DebugCheckers.cpp">;
def CallGraphViewer : Checker<"ViewCallGraph">,
HelpText<"View Call Graph using GraphViz">,
DescFile<"DebugCheckers.cpp">;
def CallGraphDumper : Checker<"DumpCallGraph">,
HelpText<"Display Call Graph">,
DescFile<"DebugCheckers.cpp">;
def AnalyzerStatsChecker : Checker<"Stats">,
HelpText<"Emit warnings with analyzer statistics">,
DescFile<"AnalyzerStatsChecker.cpp">;
def TaintTesterChecker : Checker<"TaintTest">,
HelpText<"Mark tainted symbols as such.">,
DescFile<"TaintTesterChecker.cpp">;
def IntervalTestChecker : Checker<"IntervalTest">,
HelpText<"Test the IntervalAnalysis stuff">,
DescFile<"IntervalTest.cpp">;
} // end "debug"
|
