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//===--- 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"
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//===----------------------------------------------------------------------===//
// Packages.
//===----------------------------------------------------------------------===//
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def Alpha : Package < "alpha" > ;
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def Core : Package < "core" > ;
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def CoreBuiltin : Package < "builtin" > , InPackage < Core > ;
def CoreUninitialized : Package < "uninitialized" > , InPackage < Core > ;
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def CoreAlpha : Package < "core" > , InPackage < Alpha > , Hidden ;
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def Cplusplus : Package < "cplusplus" > ;
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def CplusplusAlpha : Package < "cplusplus" > , InPackage < Alpha > , Hidden ;
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def DeadCode : Package < "deadcode" > ;
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def DeadCodeAlpha : Package < "deadcode" > , InPackage < Alpha > , Hidden ;
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def Security : Package < "security" > ;
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def InsecureAPI : Package < "insecureAPI" > , InPackage < Security > ;
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def SecurityAlpha : Package < "security" > , InPackage < Alpha > , Hidden ;
def Taint : Package < "taint" > , InPackage < SecurityAlpha > , Hidden ;
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def Unix : Package < "unix" > ;
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def UnixAlpha : Package < "unix" > , InPackage < Alpha > , Hidden ;
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def CString : Package < "cstring" > , InPackage < Unix > , Hidden ;
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def CStringAlpha : Package < "cstring" > , InPackage < UnixAlpha > , Hidden ;
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def OSX : Package < "osx" > ;
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def OSXAlpha : Package < "osx" > , InPackage < Alpha > , Hidden ;
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def Cocoa : Package < "cocoa" > , InPackage < OSX > ;
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def CocoaAlpha : Package < "cocoa" > , InPackage < OSXAlpha > , Hidden ;
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def CoreFoundation : Package < "coreFoundation" > , InPackage < OSX > ;
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def Containers : Package < "containers" > , InPackage < CoreFoundation > ;
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def LLVM : Package < "llvm" > ;
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def Debug : Package < "debug" > ;
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//===----------------------------------------------------------------------===//
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// Core Checkers.
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//===----------------------------------------------------------------------===//
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let ParentPackage = Core in {
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def DereferenceChecker : Checker < "NullDereference" > ,
HelpText < "Check for dereferences of null pointers" > ,
DescFile < "DereferenceChecker.cpp" > ;
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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" > ;
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def NonNullParamChecker : Checker < "NonNullParamChecker" > ,
HelpText < "Check for null pointers passed as arguments to a function whose arguments are references or marked with the 'nonnull' attribute" > ,
DescFile < "NonNullParamChecker.cpp" > ;
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def VLASizeChecker : Checker < "VLASize" > ,
HelpText < "Check for declarations of VLA of undefined or zero size" > ,
DescFile < "VLASizeChecker.cpp" > ;
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def DivZeroChecker : Checker < "DivideZero" > ,
HelpText < "Check for division by zero" > ,
DescFile < "DivZeroChecker.cpp" > ;
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def UndefResultChecker : Checker < "UndefinedBinaryOperatorResult" > ,
HelpText < "Check for undefined results of binary operators" > ,
DescFile < "UndefResultChecker.cpp" > ;
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def StackAddrEscapeChecker : Checker < "StackAddressEscape" > ,
HelpText < "Check that addresses to stack memory do not escape the function" > ,
DescFile < "StackAddrEscapeChecker.cpp" > ;
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def DynamicTypePropagation : Checker < "DynamicTypePropagation" > ,
HelpText < "Generate dynamic type information" > ,
DescFile < "DynamicTypePropagation.cpp" > ;
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} // end "core"
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let ParentPackage = CoreAlpha in {
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def BoolAssignmentChecker : Checker < "BoolAssignment" > ,
HelpText < "Warn about assigning non-{0,1} values to Boolean variables" > ,
DescFile < "BoolAssignmentChecker.cpp" > ;
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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" > ;
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def CastToStructChecker : Checker < "CastToStruct" > ,
HelpText < "Check for cast from non-struct pointer to struct pointer" > ,
DescFile < "CastToStructChecker.cpp" > ;
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def IdenticalExprChecker : Checker < "IdenticalExpr" > ,
HelpText < "Warn about unintended use of identical expressions in operators" > ,
DescFile < "IdenticalExprChecker.cpp" > ;
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def FixedAddressChecker : Checker < "FixedAddr" > ,
HelpText < "Check for assignment of a fixed address to a pointer" > ,
DescFile < "FixedAddressChecker.cpp" > ;
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def PointerArithChecker : Checker < "PointerArithm" > ,
HelpText < "Check for pointer arithmetic on locations other than array elements" > ,
DescFile < "PointerArithChecker" > ;
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def PointerSubChecker : Checker < "PointerSub" > ,
HelpText < "Check for pointer subtractions on two pointers pointing to different memory chunks" > ,
DescFile < "PointerSubChecker" > ;
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def SizeofPointerChecker : Checker < "SizeofPtr" > ,
HelpText < "Warn about unintended use of sizeof() on pointer expressions" > ,
DescFile < "CheckSizeofPointer.cpp" > ;
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def CallAndMessageUnInitRefArg : Checker < "CallAndMessageUnInitRefArg" > ,
HelpText < "Check for logical errors for function calls and Objective-C message expressions (e.g., uninitialized arguments, null function pointers, and pointer to undefined variables)" > ,
DescFile < "CallAndMessageChecker.cpp" > ;
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def TestAfterDivZeroChecker : Checker < "TestAfterDivZero" > ,
HelpText < "Check for division by variable that is later compared against 0. Either the comparison is useless or there is division by zero." > ,
DescFile < "TestAfterDivZeroChecker.cpp" > ;
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} // end "alpha.core"
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//===----------------------------------------------------------------------===//
// 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" > ;
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} // end "core.builtin"
//===----------------------------------------------------------------------===//
// Uninitialized values checkers.
//===----------------------------------------------------------------------===//
let ParentPackage = CoreUninitialized in {
def UndefinedArraySubscriptChecker : Checker < "ArraySubscript" > ,
HelpText < "Check for uninitialized values used as array subscripts" > ,
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DescFile < "UndefinedArraySubscriptChecker.cpp" > ;
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def UndefinedAssignmentChecker : Checker < "Assign" > ,
HelpText < "Check for assigning uninitialized values" > ,
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DescFile < "UndefinedAssignmentChecker.cpp" > ;
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def UndefBranchChecker : Checker < "Branch" > ,
HelpText < "Check for uninitialized values used as branch conditions" > ,
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DescFile < "UndefBranchChecker.cpp" > ;
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def UndefCapturedBlockVarChecker : Checker < "CapturedBlockVariable" > ,
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HelpText < "Check for blocks that capture uninitialized values" > ,
DescFile < "UndefCapturedBlockVarChecker.cpp" > ;
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def ReturnUndefChecker : Checker < "UndefReturn" > ,
HelpText < "Check for uninitialized values being returned to the caller" > ,
DescFile < "ReturnUndefChecker.cpp" > ;
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} // end "core.uninitialized"
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//===----------------------------------------------------------------------===//
// C++ checkers.
//===----------------------------------------------------------------------===//
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let ParentPackage = Cplusplus in {
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def NewDeleteChecker : Checker < "NewDelete" > ,
HelpText < "Check for double-free and use-after-free problems. Traces memory managed by new/delete." > ,
DescFile < "MallocChecker.cpp" > ;
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} // end: "cplusplus"
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let ParentPackage = CplusplusAlpha in {
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def VirtualCallChecker : Checker < "VirtualCall" > ,
HelpText < "Check virtual function calls during construction or destruction" > ,
DescFile < "VirtualCallChecker.cpp" > ;
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def NewDeleteLeaksChecker : Checker < "NewDeleteLeaks" > ,
HelpText < "Check for memory leaks. Traces memory managed by new/delete." > ,
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DescFile < "MallocChecker.cpp" > ;
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} // end: "alpha.cplusplus"
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//===----------------------------------------------------------------------===//
// Deadcode checkers.
//===----------------------------------------------------------------------===//
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let ParentPackage = DeadCode in {
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def DeadStoresChecker : Checker < "DeadStores" > ,
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HelpText < "Check for values stored to variables that are never read afterwards" > ,
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DescFile < "DeadStoresChecker.cpp" > ;
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} // end DeadCode
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let ParentPackage = DeadCodeAlpha in {
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def UnreachableCodeChecker : Checker < "UnreachableCode" > ,
HelpText < "Check unreachable code" > ,
DescFile < "UnreachableCodeChecker.cpp" > ;
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} // end "alpha.deadcode"
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//===----------------------------------------------------------------------===//
// Security checkers.
//===----------------------------------------------------------------------===//
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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" > ;
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def mkstemp : Checker < "mkstemp" > ,
HelpText < "Warn when 'mkstemp' is passed fewer than 6 X's in the format string" > ,
DescFile < "CheckSecuritySyntaxOnly.cpp" > ;
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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" > ;
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def UncheckedReturn : Checker < "UncheckedReturn" > ,
HelpText < "Warn on uses of functions whose return values must be always checked" > ,
DescFile < "CheckSecuritySyntaxOnly.cpp" > ;
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}
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" > ;
}
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let ParentPackage = SecurityAlpha in {
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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" > ;
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def MallocOverflowSecurityChecker : Checker < "MallocOverflow" > ,
HelpText < "Check for overflows in the arguments to malloc()" > ,
DescFile < "MallocOverflowSecurityChecker.cpp" > ;
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} // end "alpha.security"
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//===----------------------------------------------------------------------===//
// Taint checkers.
//===----------------------------------------------------------------------===//
let ParentPackage = Taint in {
def GenericTaintChecker : Checker < "TaintPropagation" > ,
HelpText < "Generate taint information used by other checkers" > ,
DescFile < "GenericTaintChecker.cpp" > ;
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} // end "alpha.security.taint"
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//===----------------------------------------------------------------------===//
// Unix API checkers.
//===----------------------------------------------------------------------===//
let ParentPackage = Unix in {
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def UnixAPIChecker : Checker < "API" > ,
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HelpText < "Check calls to various UNIX/Posix functions" > ,
DescFile < "UnixAPIChecker.cpp" > ;
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def MallocPessimistic : Checker < "Malloc" > ,
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HelpText < "Check for memory leaks, double free, and use-after-free problems. Traces memory managed by malloc()/free()." > ,
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DescFile < "MallocChecker.cpp" > ;
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def MallocSizeofChecker : Checker < "MallocSizeof" > ,
HelpText < "Check for dubious malloc arguments involving sizeof" > ,
DescFile < "MallocSizeofChecker.cpp" > ;
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def MismatchedDeallocatorChecker : Checker < "MismatchedDeallocator" > ,
HelpText < "Check for mismatched deallocators." > ,
DescFile < "MallocChecker.cpp" > ;
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} // end "unix"
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let ParentPackage = UnixAlpha in {
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def ChrootChecker : Checker < "Chroot" > ,
HelpText < "Check improper use of chroot" > ,
DescFile < "ChrootChecker.cpp" > ;
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def MallocOptimistic : Checker < "MallocWithAnnotations" > ,
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HelpText < "Check for memory leaks, double free, and use-after-free problems. Traces memory managed by malloc()/free(). Assumes that all user-defined functions which might free a pointer are annotated." > ,
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DescFile < "MallocChecker.cpp" > ;
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def PthreadLockChecker : Checker < "PthreadLock" > ,
HelpText < "Simple lock -> unlock checker" > ,
DescFile < "PthreadLockChecker.cpp" > ;
def StreamChecker : Checker < "Stream" > ,
HelpText < "Check stream handling functions" > ,
DescFile < "StreamChecker.cpp" > ;
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def SimpleStreamChecker : Checker < "SimpleStream" > ,
HelpText < "Check for misuses of stream APIs" > ,
DescFile < "SimpleStreamChecker.cpp" > ;
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} // end "alpha.unix"
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let ParentPackage = CString in {
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def CStringNullArg : Checker < "NullArg" > ,
HelpText < "Check for null pointers being passed as arguments to C string functions" > ,
DescFile < "CStringChecker.cpp" > ;
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def CStringSyntaxChecker : Checker < "BadSizeArg" > ,
HelpText < "Check the size argument passed into C string functions for common erroneous patterns" > ,
DescFile < "CStringSyntaxChecker.cpp" > ;
}
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let ParentPackage = CStringAlpha in {
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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" > ,
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DescFile < "CStringChecker.cpp" > ;
}
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//===----------------------------------------------------------------------===//
// Mac OS X, Cocoa, and Core Foundation checkers.
//===----------------------------------------------------------------------===//
let ParentPackage = OSX in {
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def MacOSXAPIChecker : Checker < "API" > ,
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InPackage < OSX > ,
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HelpText < "Check for proper uses of various Apple APIs" > ,
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DescFile < "MacOSXAPIChecker.cpp" > ;
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def MacOSKeychainAPIChecker : Checker < "SecKeychainAPI" > ,
InPackage < OSX > ,
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HelpText < "Check for proper uses of Secure Keychain APIs" > ,
DescFile < "MacOSKeychainAPIChecker.cpp" > ;
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} // end "osx"
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let ParentPackage = Cocoa in {
def ObjCAtSyncChecker : Checker < "AtSync" > ,
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HelpText < "Check for nil pointers used as mutexes for @synchronized" > ,
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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" > ,
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HelpText < "Check for passing non-Objective-C types to variadic collection "
"initialization methods that expect only Objective-C types" > ,
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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" > ;
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def ObjCSelfInitChecker : Checker < "SelfInit" > ,
HelpText < "Check that 'self' is properly initialized inside an initializer method" > ,
DescFile < "ObjCSelfInitChecker.cpp" > ;
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def ObjCLoopChecker : Checker < "Loops" > ,
HelpText < "Improved modeling of loops using Cocoa collection types" > ,
DescFile < "BasicObjCFoundationChecks.cpp" > ;
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def ObjCNonNilReturnValueChecker : Checker < "NonNilReturnValue" > ,
HelpText < "Model the APIs that are guaranteed to return a non-nil value" > ,
DescFile < "BasicObjCFoundationChecks.cpp" > ;
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def ObjCSuperCallChecker : Checker < "MissingSuperCall" > ,
HelpText < "Warn about Objective-C methods that lack a necessary call to super" > ,
DescFile < "ObjCMissingSuperCallChecker.cpp" > ;
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def NSErrorChecker : Checker < "NSError" > ,
HelpText < "Check usage of NSError** parameters" > ,
DescFile < "NSErrorChecker.cpp" > ;
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def RetainCountChecker : Checker < "RetainCount" > ,
HelpText < "Check for leaks and improper reference count management" > ,
DescFile < "RetainCountChecker.cpp" > ;
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} // end "osx.cocoa"
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let ParentPackage = CocoaAlpha in {
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def ObjCDeallocChecker : Checker < "Dealloc" > ,
HelpText < "Warn about Objective-C classes that lack a correct implementation of -dealloc" > ,
DescFile < "CheckObjCDealloc.cpp" > ;
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def InstanceVariableInvalidation : Checker < "InstanceVariableInvalidation" > ,
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HelpText < "Check that the invalidatable instance variables are invalidated in the methods annotated with objc_instance_variable_invalidator" > ,
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DescFile < "IvarInvalidationChecker.cpp" > ;
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def MissingInvalidationMethod : Checker < "MissingInvalidationMethod" > ,
HelpText < "Check that the invalidation methods are present in classes that contain invalidatable instance variables" > ,
DescFile < "IvarInvalidationChecker.cpp" > ;
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def DirectIvarAssignment : Checker < "DirectIvarAssignment" > ,
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HelpText < "Check for direct assignments to instance variables" > ,
DescFile < "DirectIvarAssignment.cpp" > ;
def DirectIvarAssignmentForAnnotatedFunctions : Checker < "DirectIvarAssignmentForAnnotatedFunctions" > ,
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HelpText < "Check for direct assignments to instance variables in the methods annotated with objc_no_direct_instance_variable_assignment" > ,
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DescFile < "DirectIvarAssignment.cpp" > ;
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} // end "alpha.osx.cocoa"
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let ParentPackage = CoreFoundation in {
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def CFNumberCreateChecker : Checker < "CFNumber" > ,
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HelpText < "Check for proper uses of CFNumberCreate" > ,
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DescFile < "BasicObjCFoundationChecks.cpp" > ;
def CFRetainReleaseChecker : Checker < "CFRetainRelease" > ,
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HelpText < "Check for null arguments to CFRetain/CFRelease/CFMakeCollectable" > ,
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DescFile < "BasicObjCFoundationChecks.cpp" > ;
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def CFErrorChecker : Checker < "CFError" > ,
HelpText < "Check usage of CFErrorRef* parameters" > ,
DescFile < "NSErrorChecker.cpp" > ;
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}
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let ParentPackage = Containers in {
def ObjCContainersASTChecker : Checker < "PointerSizedValues" > ,
HelpText < "Warns if 'CFArray', 'CFDictionary', 'CFSet' are created with non-pointer-size values" > ,
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DescFile < "ObjCContainersASTChecker.cpp" > ;
def ObjCContainersChecker : Checker < "OutOfBounds" > ,
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HelpText < "Checks for index out-of-bounds when using 'CFArray' API" > ,
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DescFile < "ObjCContainersChecker.cpp" > ;
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}
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//===----------------------------------------------------------------------===//
// Checkers for LLVM development.
//===----------------------------------------------------------------------===//
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def LLVMConventionsChecker : Checker < "Conventions" > ,
InPackage < LLVM > ,
HelpText < "Check code for LLVM codebase conventions" > ,
DescFile < "LLVMConventionsChecker.cpp" > ;
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//===----------------------------------------------------------------------===//
// Debugging checkers (for analyzer development).
//===----------------------------------------------------------------------===//
let ParentPackage = Debug in {
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def DominatorsTreeDumper : Checker < "DumpDominators" > ,
HelpText < "Print the dominance tree for a given CFG" > ,
DescFile < "DebugCheckers.cpp" > ;
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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" > ;
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def CallGraphViewer : Checker < "ViewCallGraph" > ,
HelpText < "View Call Graph using GraphViz" > ,
DescFile < "DebugCheckers.cpp" > ;
def CallGraphDumper : Checker < "DumpCallGraph" > ,
HelpText < "Display Call Graph" > ,
DescFile < "DebugCheckers.cpp" > ;
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def ConfigDumper : Checker < "ConfigDumper" > ,
HelpText < "Dump config table" > ,
DescFile < "DebugCheckers.cpp" > ;
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def TraversalDumper : Checker < "DumpTraversal" > ,
HelpText < "Print branch conditions as they are traversed by the engine" > ,
DescFile < "TraversalChecker.cpp" > ;
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def CallDumper : Checker < "DumpCalls" > ,
HelpText < "Print calls as they are traversed by the engine" > ,
DescFile < "TraversalChecker.cpp" > ;
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def AnalyzerStatsChecker : Checker < "Stats" > ,
HelpText < "Emit warnings with analyzer statistics" > ,
DescFile < "AnalyzerStatsChecker.cpp" > ;
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def TaintTesterChecker : Checker < "TaintTest" > ,
HelpText < "Mark tainted symbols as such." > ,
DescFile < "TaintTesterChecker.cpp" > ;
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def ExprInspectionChecker : Checker < "ExprInspection" > ,
HelpText < "Check the analyzer's understanding of expressions" > ,
DescFile < "ExprInspectionChecker.cpp" > ;
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def ExplodedGraphViewer : Checker < "ViewExplodedGraph" > ,
HelpText < "View Exploded Graphs using GraphViz" > ,
DescFile < "DebugCheckers.cpp" > ;
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} // end "debug"
