blob: 34fb578c0185124cbca604692d72b1ae5a3f753c [file] [log] [blame]
#include "clang/StaticAnalyzer/Core/Checker.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
#include "clang/StaticAnalyzer/Core/CheckerRegistry.h"
#include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
using namespace clang;
using namespace ento;
namespace {
class MainCallChecker : public Checker < check::PreStmt<CallExpr> > {
mutable llvm::OwningPtr<BugType> BT;
public:
void checkPreStmt(const CallExpr *CE, CheckerContext &C) const;
};
} // end anonymous namespace
void MainCallChecker::checkPreStmt(const CallExpr *CE, CheckerContext &C) const {
const ProgramStateRef state = C.getState();
const LocationContext *LC = C.getLocationContext();
const Expr *Callee = CE->getCallee();
const FunctionDecl *FD = state->getSVal(Callee, LC).getAsFunctionDecl();
if (!FD)
return;
// Get the name of the callee.
IdentifierInfo *II = FD->getIdentifier();
if (!II) // if no identifier, not a simple C function
return;
if (II->isStr("main")) {
ExplodedNode *N = C.generateSink();
if (!N)
return;
if (!BT)
BT.reset(new BugType("call to main", "example analyzer plugin"));
BugReport *report = new BugReport(*BT, BT->getName(), N);
report->addRange(Callee->getSourceRange());
C.EmitReport(report);
}
}
// Register plugin!
extern "C"
void clang_registerCheckers (CheckerRegistry &registry) {
registry.addChecker<MainCallChecker>("example.MainCallChecker", "Disallows calls to functions called main");
}
extern "C"
const char clang_analyzerAPIVersionString[] = CLANG_ANALYZER_API_VERSION_STRING;