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2012-02-11[analyzer] Malloc Checker: Report a leak when we are returning freedAnna Zaks
memory. (As per one test case, the existing checker thought that this could cause a lot of false positives - not sure if that's valid, to be verified.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150313 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-11[analyzer] Malloc checker: Leak bugs should be suppressed by sinks.Anna Zaks
Resolves a common false positive, where we were reporting a leak inside asserts git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150312 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-11[analyzer] MallocChecker: refactor/improve the symbol escape logic.Anna Zaks
We use the same logic here as the RetainRelease checker. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150311 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-11[analyzer] New checker for assignment of non-0/1 values to Boolean variables.Ryan Govostes
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150306 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-10[analyzer] MallocChecker Cleanup - harden against crashes, fix an errorAnna Zaks
(use of return instead of continue), wording. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150215 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Remove unused fun.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150172 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09[analyzer] MallocChecker: address a diagnostic "fixme".Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150158 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09[analyzer] Add custom path diagnostic to the Malloc Checker.Anna Zaks
Very simple so far - we just highlight every allocation and release site. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150156 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09[analyzer] MallocChecker cleanup, more tests.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150155 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08[analyzer] MallocChecker: implement pessimistic version of the checker,Anna Zaks
which allows values to escape through unknown calls. Assumes all calls but the malloc family are unknown. Also, catch a use-after-free when a pointer is passed to a function after a call to free (previously, you had to explicitly dereference the pointer value). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150112 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08[analyzer] Split the MallocChecker into two versions - pessimistic andAnna Zaks
optimistic. TODO: actually implement the pessimistic version of the checker. Ex: it needs to assume that any function that takes a pointer might free it. The optimistic version relies on annotations to tell us which functions can free the pointer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150111 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-08[analyzer] MallocChecker: convert from using evalCall toAnna Zaks
post visit of CallExpr. In general, we should avoid using evalCall as it leads to interference with other checkers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150086 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-07Revert my patches which removed Diagnostic.h includes by moving some ↵Benjamin Kramer
operator overloads out of line. This seems to negatively affect compile time onsome ObjC tests (which use a lot of partial diagnostics I assume). I have to come up with a way to keep them inline without including Diagnostic.h everywhere. Now adding a new diagnostic requires a full rebuild of e.g. the static analyzer which doesn't even use those diagnostics. This reverts commit 6496bd10dc3a6d5e3266348f08b6e35f8184bc99. This reverts commit 7af19b817ba964ac560b50c1ed6183235f699789. This reverts commit fdd15602a42bbe26185978ef1e17019f6d969aa7. This reverts commit 00bd44d5677783527d7517c1ffe45e4d75a0f56f. This reverts commit ef9b60ffed980864a8db26ad30344be429e58ff5. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150006 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-07Print NamedDecls directly to a raw_ostream where possible.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149982 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-07Switch the ObjC*Decl raw_stream overloads to take a reference, for ↵Benjamin Kramer
consistency with NamedDecls. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149981 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-07[analyzer] Allow each CString check to be enabled/disabledAnna Zaks
separately. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149947 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-07Add basic BugReporter support for CallEnter/CallExit. WIP.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149939 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
2012-02-05Basic: import OwningPtr<> into clang namespaceDylan Noblesmith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149798 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
2012-02-04Move various diagnostic operator<< overloads out of line and remove includes ↵Benjamin Kramer
of Diagnostic.h. Fix all the files that depended on transitive includes of Diagnostic.h. With this patch in place changing a diagnostic no longer requires a full rebuild of the StaticAnalyzer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149781 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04[analyzer] Make sure Containers OutOfBounds checker does not crash on ↵Anna Zaks
undefined arguments, when CF functions are called with wrong number of arguments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149771 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04[analyzer] Turn on by default two checkers:Anna Zaks
- osx.coreFoundation.containers.IndexOutOfBounds - osx.cocoa.SelfInit git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149747 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04[analyzer] Minor cleanups to the ObjCSelfInitChecker.Anna Zaks
(Also renames in other ObjC checkers to create one category of checks.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149745 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-02[analyzer] Fix a false positive in the CFArrayCreate check that surfacesAnna Zaks
the the code like this (due to x and &x being the same value but different size): void* x[] = { ptr1, ptr2, ptr3 }; CFArrayCreate(NULL, (const void **) &x, count, NULL); git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149579 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31Fix an assertion failure in isMacOSXVersionLT for IOS targets.Bob Wilson
Check if the triple OS is IOS instead of checking for arm/thumb architectures and check that before calling isMacOSXVersionLT. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149454 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31[analyzer] Add checks for common anti-patterns in strncat.Anna Zaks
(Since this is syntax only, might be a good candidate for turning into a compiler warning.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149407 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31[analyzer] Change the warning to suggest 'strlcat/strlcpy' asAnna Zaks
replacements for 'starcat/strcpy' instead of 'strncat/strncpy'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149406 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31Convert checker over to using ProgramStateRef.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149319 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-30[analyzer] Rename the checker as per Ted's comment. Remove the referenceAnna Zaks
from the driver. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149276 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-30[analyzer] Make osx.cocos.CFContainersSyntax a default checker.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149258 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-30[analyzer] Add index out of bounds check for CFArrayGetArrayAtIndex.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149228 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-28StaticAnalyzer: Move ObjC- and CXX-specific methods out of line so checkers ↵Benjamin Kramer
that don't care about the language don't have to pull in all the headers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149178 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-26Change references to 'const ProgramState *' to typedef 'ProgramStateRef'.Ted Kremenek
At this point this is largely cosmetic, but it opens the door to replace ProgramStateRef with a smart pointer that more eagerly acts in the role of reclaiming unused ProgramState objects. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149081 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-26StaticAnalyzer/Checkers: Fix CMake build.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149009 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-26[analyzer] Add an AST checker that checks for a common pitfall whenAnna Zaks
using CFArrayCreate & family. Specifically, CFArrayCreate's input should be: 'A C array of the pointer-sized values to be in the new array.' (radar://10717339) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149008 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-24[analyzer] Add more C taint sources/sinks.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148844 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-21[analyzer] It's possible to have a non PointerType expression evaluate to a ↵Anna Zaks
Loc value. When this happens, use the default type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148631 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-21[analyzer] Make VLA checker taint aware. Anna Zaks
Also, slightly modify the diagnostic message in ArrayBound and DivZero (still use 'taint', which might not mean much to the user, but plan on changing it later). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148626 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20More dead code removal (using -Wunreachable-code)David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148577 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20[analyzer] Add taint awareness to DivZeroChecker.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148566 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20Reenable DeadStoresChecker under --analyze, and move the ↵Ted Kremenek
IdempotentOperationsChecker to the 'experimental' category. Fixes <rdar://problem/10146347>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148533 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20Implement checker that looks for calls to mktemps and friends that have ↵Ted Kremenek
fewer than 6 Xs. Implements <rdar://problem/6336672>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148531 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20Turn 'SecuritySyntaxChecker' into a "meta" security checker for insecure ↵Ted Kremenek
APIs. Now multiple checks are exposed as separate checkers, but CheckerManager only creates one Checker object. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148525 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20[analyzer] Add socket API as a source of taint.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148518 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18[analyzer] Refactor: prePropagateTaint ->Anna Zaks
TaintPropagationRule::process(). Also remove the "should be a pointer argument" warning - should be handled elsewhere. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148372 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18[analyzer] Taint: warn when tainted data is used to specify a bufferAnna Zaks
size (Ex: in malloc, memcpy, strncpy..) (Maybe some of this could migrate to the CString checker. One issue with that is that we might want to separate security issues from regular API misuse.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148371 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-18[analyzer] Taint: add taint propagation rules for string and memory copyAnna Zaks
functions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148370 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17Remove unreachable code in Clang. (replace with llvm_unreachable where ↵David Blaikie
appropriate or when GCC requires it) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148292 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17Remove unnecessary default cases in switches over enums.David Blaikie
This allows -Wswitch-enum to find switches that need updating when these enums are modified. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148281 91177308-0d34-0410-b5e6-96231b3b80d8
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