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path: root/include/clang/StaticAnalyzer/Core/CheckerManager.h
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2013-04-16Factor CheckerManager to be able to pass AnalyzerOptions to checkersTed Kremenek
during checker registration. There are no immediate clients of this, but this provides a way for checkers to query the options table at startup instead. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179626 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-28[analyzer] Add support for escape of const pointers and use it to allow ↵Anna Zaks
“newed” pointers to escape Add a new callback that notifies checkers when a const pointer escapes. Currently, this only works for const pointers passed as a top level parameter into a function. We need to differentiate the const pointers escape from regular escape since the content pointed by const pointer will not change; if it’s a file handle, a file cannot be closed; but delete is allowed on const pointers. This should suppress several false positives reported by the NewDelete checker on llvm codebase. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178310 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-07[analyzer] Add pointer escape type param to checkPointerEscape callbackAnna Zaks
The checkPointerEscape callback previously did not specify how a pointer escaped. This change includes an enum which describes the different ways a pointer may escape. This enum is passed to the checkPointerEscape callback when a pointer escapes. If the escape is due to a function call, the call is passed. This changes previous behavior where the call is passed as NULL if the escape was due to indirectly invalidating the region the pointer referenced. A patch by Branden Archer! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@174677 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-03[analyzer] Rename callback EndPath -> EndFunctionAnna Zaks
This better reflects when callback is called and what the checkers are relying on. (Both names meant the same pre-IPA.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171432 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-21[analyzer] Address Jordan's nitpicks as per code review of r170625.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170832 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20[analyzer] Add the pointer escaped callback.Anna Zaks
Instead of using several callbacks to identify the pointer escape event, checkers now can register for the checkPointerEscape. Converted the Malloc checker to use the new callback. SimpleStreamChecker will be converted next. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170625 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Sort #include lines for all files under include/...Chandler Carruth
This is a simpler sort, entirely automatic with the help of llvm/utils/sort_includes.py -- no manual edits here. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169238 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-03[analyzer] Refactor: Remove Pred from NodeBuilderContext.Anna Zaks
Node builders should manage the nodes, not the context. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167350 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-13[analyzer] Remove unneeded 'inlineCall' checker callback.Jordan Rose
I believe the removed assert in CheckerManager says it best: InlineCall is a special hacky callback to allow intrusive evaluation of the call (which simulates inlining). It is currently only used by OSAtomicChecker and should go away at some point. OSAtomicChecker has gone away; inlineCall can now go away as well! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@165865 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-25[analyzer] Use the common evalBind infrastructure for initializers.Jordan Rose
This allows checkers (like the MallocChecker) to process the effects of the bind. Previously, using a memory-allocating function (like strdup()) in an initializer would result in a leak warning. This does bend the expectations of checkBind a bit; since there is no assignment expression, the statement being used is the initializer value. In most cases this shouldn't matter because we'll use a PostInitializer program point (rather than PostStmt) for any checker-generated nodes, though we /will/ generate a PostStore node referencing the internal statement. (In theory this could have funny effects if someone actually does an assignment within an initializer; in practice, that seems like it would be very rare.) <rdar://problem/12171711> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162637 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-13[analyzer] Reduce code duplication: make CXXDestructorCall a CXXInstanceCall.Jordan Rose
While there is now some duplication between SimpleCall and the CXXInstanceCall sub-hierarchy, this is much better than copy-and-pasting the devirtualization logic shared by both instance methods and destructors. An unfortunate side effect is that there is no longer a single CallEvent type that corresponds to "calls written as CallExprs". For the most part this is a good thing, but the checker callback eval::Call still takes a CallExpr rather than a CallEvent (since we're not sure if we want to allow checkers to evaluate other kinds of calls). A mistake here will be caught by a cast<> in CheckerManager::runCheckersForEvalCall. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161809 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-30[analyzer] Perform post-call checks for all inlined calls.Jordan Rose
Previously, we were only checking the origin expressions of inlined calls. Checkers using the generic postCall and older postObjCMessage callbacks were ignored. Now that we have CallEventManager, it is much easier to create a CallEvent generically when exiting an inlined function, which we can then use for post-call checks. No test case because we don't (yet) have any checkers that depend on this behavior (which is why it hadn't been fixed before now). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161005 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02[analyzer] Add generic preCall and postCall checks.Jordan Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159562 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02[analyzer] Use CallEvent for inlining and call default-evaluation.Jordan Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159560 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02[analyzer] Finish replacing ObjCMessage with ObjCMethodDecl and friends.Jordan Rose
The preObjCMessage and postObjCMessage callbacks now take an ObjCMethodCall argument, which can represent an explicit message send (ObjCMessageSend) or an implicit message generated by a property access (ObjCPropertyAccess). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159559 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-02[analyzer] Add a new abstraction over all types of calls: CallEventJordan Rose
This is intended to replace CallOrObjCMessage, and is eventually intended to be used for anything that cares more about /what/ is being called than /how/ it's being called. For example, inlining destructors should be the same as inlining blocks, and checking __attribute__((nonnull)) should apply to the allocator calls generated by operator new. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159554 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-17Documentation cleanup: Add missing parameter name to a \param commandJames Dennett
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@158621 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20[analyzer] Run remove dead bindings right before leaving a function.Anna Zaks
This is needed to ensure that we always report issues in the correct function. For example, leaks are identified when we call remove dead bindings. In order to make sure we report a callee's leak in the callee, we have to run the operation in the callee's context. This change required quite a bit of infrastructure work since: - We used to only run remove dead bindings before a given statement; here we need to run it after the last statement in the function. For this, we added additional Program Point and special mode in the SymbolReaper to remove all symbols in context lower than the current one. - The call exit operation turned into a sequence of nodes, which are now guarded by CallExitBegin and CallExitEnd nodes for clarity and convenience. (Sorry for the long diff.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155244 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-06Rework ExprEngine::evalLoad and clients (e.g. VisitBinaryOperator) so that ↵Ted Kremenek
when we generate a new ExplodedNode we use the same Expr* as the one being currently visited. This is preparation for transitioning to having ProgramPoints refer to CFGStmts. This required a bit of trickery. We wish to keep the old Expr* bindings in the Environment intact, as plenty of logic relies on it and there is no reason to change it, but we sometimes want the Stmt* for the ProgramPoint to be different than the Expr* being used for bindings. This requires adding an extra argument for some functions (e.g., evalLocation). This looks a bit strange for some clients, but it will look a lot cleaner when were start using CFGStmt* in the appropriate places. As some fallout, the diagnostics arrows are a bit difference, since some of the node locations have changed. I have audited these, and they look reasonable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154214 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-23Avoid applying retain/release effects twice in RetainCountChecker when a ↵Ted Kremenek
function call was inlined (i.e., we do not need to apply summaries in such cases). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153309 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-11Unify naming of LangOptions variable/get function across the Clang stack ↵David Blaikie
(Lex to AST). The member variable is always "LangOpts" and the member function is always "getLangOpts". Reviewed by Chris Lattner git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152536 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-14[analyzer] Make Malloc Checker optimistic in presence of inlining.Anna Zaks
(In response of Ted's review of r150112.) This moves the logic which checked if a symbol escapes through a parameter to invalidateRegionCallback (instead of post CallExpr visit.) To accommodate the change, added a CallOrObjCMessage parameter to checkRegionChanges callback. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150513 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31Convert more uses of 'const ProgramState *' to 'ProgramStateRef' (and ↵Ted Kremenek
related cleanups). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149310 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-25[analyzer] Make branch for condition callback use CheckerContextAnna Zaks
Now, all the path sensitive checkers use CheckerContext! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142944 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-25[analyze] Convert EndOfPath callback to use CheckerContextAnna Zaks
Get rid of the EndOfPathBuilder completely. Use the generic NodeBuilder to generate nodes. Enqueue the end of path frontier explicitly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142943 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24[analyzer] Convert ExprEngine::visit() to use short lived builders.Anna Zaks
This commit removes the major functional dependency on the ExprEngine::Builder member variable. In some cases the code became more verbose. Particularly, we call takeNodes() and addNodes() to move responsibility for the nodes from one builder to another. This will get simplified later on. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142831 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-18[analyzer] Make NodeBuilder and Pred node loosely coupledAnna Zaks
NodeBuilder should not assume it's dealing with a single predecessor. Remove predecessor getters. Modify the BranchNodeBuilder to not be responsible for doing auto-transitions (which depend on a predecessor). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142453 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-18[analyzer] Modularize builder use in processBranch.Anna Zaks
Take advantage of the new builders for branch processing. As part of this change pass generic NodeBuilder (instead of BranchNodeBuilder) to the BranchCondition callback and remove the unused methods form BranchBuilder. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142448 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-06[analyzer] Remove the dependency on CheckerContext::getStmt() as well as the ↵Anna Zaks
method itself. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141262 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-05[analyzer] OSAtomicChecker implements evalCall in a very invasive way - it ↵Anna Zaks
essentially simulates inlining of compareAndSwap() by means of setting the NodeBuilder flags and calling ExprEngine directly. This commit introduces a new callback just for this checker to unblock checker API cleanup. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141246 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-29Add more comments to several checker callback functions.Anna Zaks
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140797 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-28[analyzer] Introduce a new callback for checkers, printState, to be used for ↵Jordy Rose
debug-printing the contents of a ProgramState. Unlike the other callbacks, this one is a simple virtual method, since it is only to be used for debugging. This new callback replaces the old ProgramState::Printer interface, and allows us to move the printing of refcount bindings from CFRefCount to RetainReleaseChecker. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138728 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27[analyzer] Change the check::RegionChanges callback to include the regions ↵Jordy Rose
explicitly requested for invalidation. Also, allow CallOrObjCMessage to wrap a CXXConstructExpr as well. Finally, this allows us to remove the clunky whitelisting system from CFRefCount/RetainReleaseChecker. Slight regression due to CXXNewExprs not yet being handled in post-statement callbacks (PR forthcoming). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@138716 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Rename GRState to ProgramState, and cleanup some code formatting along the way.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137665 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Cleanup various declarations of 'Stmt*' to be 'Stmt *', etc. in libAnalyzer ↵Ted Kremenek
and libStaticAnalyzer[*]. It was highly inconsistent, and very ugly to look at. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137537 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12[analyzer] change "tag" in ProgramPoint from "void*" to a ProgramPointTag*.Ted Kremenek
Having a notion of an actual ProgramPointTag will aid in introspection of the analyzer's behavior. For example, the GraphViz output of the analyzer will pretty-print the tags in a useful manner. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137529 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-20now that we have a centralized place to do so, add some using declarations forChris Lattner
some common llvm types: stringref and smallvector. This cleans up the codebase quite a bit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135576 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-05Add Checker callback for running a checker at the end of processing an ↵Ted Kremenek
entire TranslationUnit. Patch by Lei Zhang. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130913 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-02Augment retain/release checker to not warn about tracked objects passed as ↵Ted Kremenek
arguments to C++ constructors. This is a stop-gap measure for Objective-C++ code that uses smart pointers to manage reference counts. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130711 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-02[analyzer] Simplify CheckerFn template and use it more to reduce ↵Argyrios Kyrtzidis
duplication. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128779 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Run the ExprEngine depending on the CheckerManager having ↵Argyrios Kyrtzidis
path-sensitive checkers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126674 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Introduce "event" mechanism in CheckerManager.Argyrios Kyrtzidis
A checker can register as receiver/listener of "events" (basically it registers a callback with a function getting called with an argument of the event type) and other checkers can register as "dispatchers" and can pass an event object to all the listeners. This allows cooperation amongst checkers but with very loose coupling. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126658 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Migrate UndefBranchChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126616 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Migrate MallocChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126606 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Have CheckerManager::registerChecker return a pointer to the ↵Argyrios Kyrtzidis
checker object and only allow a checker to be registered once. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126605 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24[analyzer] Don't pass a GRState to CheckerManager::runCheckersForLocation, ↵Argyrios Kyrtzidis
terrible mistake. If the state is new, make sure an ExplodedNode is associated with it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126370 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24[analyzer] Remove unused functions from CheckerManager.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126352 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24[analyzer] Migrate CStringChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126350 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23[analyzer] Migrate StackAddrLeakChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126333 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23[analyzer] const goodness.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126326 91177308-0d34-0410-b5e6-96231b3b80d8
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