Add the clang library to the repo (with some of my changes, too).

1 files changed, 491 insertions, 0 deletions

diff --git a/clang/lib/StaticAnalyzer/Checkers/Checkers.td b/clang/lib/StaticAnalyzer/Checkers/Checkers.td
new file mode 100644
index 0000000..f577a89
--- /dev/null
+++ b/clang/lib/StaticAnalyzer/Checkers/Checkers.td
@@ -0,0 +1,491 @@
+//===--- 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"
+