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path: root/lib/StaticAnalyzer/Checkers/MallocSizeofChecker.cpp
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2013-04-09[analyzer] Replace isIntegerType() with isIntegerOrEnumerationType().Jordan Rose
Previously, the analyzer used isIntegerType() everywhere, which uses the C definition of "integer". The C++ predicate with the same behavior is isIntegerOrUnscopedEnumerationType(). However, the analyzer is /really/ using this to ask if it's some sort of "integrally representable" type, i.e. it should include C++11 scoped enumerations as well. hasIntegerRepresentation() sounds like the right predicate, but that includes vectors, which the analyzer represents by its elements. This commit audits all uses of isIntegerType() and replaces them with the general isIntegerOrEnumerationType(), except in some specific cases where it makes sense to exclude scoped enumerations, or any enumerations. These cases now use isIntegerOrUnscopedEnumerationType() and getAs<BuiltinType>() plus BuiltinType::isInteger(). isIntegerType() is hereby banned in the analyzer - lib/StaticAnalysis and include/clang/StaticAnalysis. :-) Fixes real assertion failures. PR15703 / <rdar://problem/12350701> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179081 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-12Remove useless 'llvm::' qualifier from names like StringRef and others that areDmitri Gribenko
brought into 'clang' namespace by clang/Basic/LLVM.h git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172323 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Sort all of Clang's files under 'lib', and fix up the broken headersChandler Carruth
uncovered. This required manually correcting all of the incorrect main-module headers I could find, and running the new llvm/utils/sort_includes.py script over the files. I also manually added quite a few missing headers that were uncovered by shuffling the order or moving headers up to be main-module-headers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169237 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01Include pruning and general cleanup.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169095 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-08[analyzer] Address John's code review for r163407.Anna Zaks
Teach malloc sizeof checker to find type inconsistencies in multi- dimensional arrays. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163438 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-07[analyzer] Fix a false positive in sizeof malloc checker.Anna Zaks
Don't warn when the sizeof argument is an array with the same element type as the pointee of the return type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163407 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-04Fix indentation.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163176 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-31[analyzer] RetainCountChecker: don't assume all functions have names.Jordan Rose
Fixes a hard-to-reach crash when calling a non-member overloaded operator with arguments that may be callbacks. Future-proofing: don't make the same assumption in MallocSizeofChecker. Aside from possibly respecting attributes in the future, it might be possible to call 'malloc' through a function pointer. I audited all other uses of FunctionDecl::getIdentifier() in the analyzer; they all now correctly test to see if the identifier is present before using it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163012 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-08[analyzer] MallocSizeofChecker false positive: when sizeof is argumentAnna Zaks
to addition. We should not to warn in case the malloc size argument is an addition containing 'sizeof' operator - it is common to use the pattern to pack values of different sizes into a buffer. Ex: uint8_t *buffer = (uint8_t*)malloc(dataSize + sizeof(length)); git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158219 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-07[analyzer]Turn on MallocSizeOfChecker by default; shorten the diagnosticAnna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156341 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-01malloc size checker: Ignore const'ness of pointer types when determining of ↵Ted Kremenek
a sizeof() type is compatible with a pointed type. Fixes <rdar://problem/11292586>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155864 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-05Require that all static analyzer issues have a category. As part of this ↵Ted Kremenek
change, consolidate some commonly used category strings into global references (more of this can be done, I just did a few). Fixes <rdar://problem/11191537>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154121 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-04Include the "issue context" (e.g. function or method) where a static ↵Ted Kremenek
analyzer issue occurred in the plist output. Fixes <rdar://problem/11004527> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154030 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05Basic: import SmallString<> into clang namespaceDylan Noblesmith
(I was going to fix the TODO about DenseMap too, but that would break self-host right now. See PR11922.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149799 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04Move a method from IdentifierTable.h out of line and remove the SmallString ↵Benjamin Kramer
include. Fix all the transitive include users. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149783 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-08Unbreak MSVC build.Francois Pichet
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146146 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-08Add an experimental MallocSizeofChecker, which reports inconsistenciesPeter Collingbourne
between the casted type of the return value of a malloc/calloc/realloc call and the operand of any sizeof expressions contained within its argument(s). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146144 91177308-0d34-0410-b5e6-96231b3b80d8
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