forked from OSchip/llvm-project
53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
#include "clang/StaticAnalyzer/Core/Checker.h"
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#include "clang/StaticAnalyzer/Core/BugReporter/BugType.h"
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#include "clang/StaticAnalyzer/Core/CheckerRegistry.h"
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#include "clang/StaticAnalyzer/Core/PathSensitive/CheckerContext.h"
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using namespace clang;
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using namespace ento;
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namespace {
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class MainCallChecker : public Checker < check::PreStmt<CallExpr> > {
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mutable std::unique_ptr<BugType> BT;
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public:
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void checkPreStmt(const CallExpr *CE, CheckerContext &C) const;
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};
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} // end anonymous namespace
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void MainCallChecker::checkPreStmt(const CallExpr *CE, CheckerContext &C) const {
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const Expr *Callee = CE->getCallee();
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const FunctionDecl *FD = C.getSVal(Callee).getAsFunctionDecl();
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if (!FD)
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return;
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// Get the name of the callee.
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IdentifierInfo *II = FD->getIdentifier();
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if (!II) // if no identifier, not a simple C function
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return;
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if (II->isStr("main")) {
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ExplodedNode *N = C.generateErrorNode();
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if (!N)
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return;
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if (!BT)
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BT.reset(new BugType(this, "call to main", "example analyzer plugin"));
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std::unique_ptr<BugReport> report =
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llvm::make_unique<BugReport>(*BT, BT->getName(), N);
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report->addRange(Callee->getSourceRange());
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C.emitReport(std::move(report));
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}
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}
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// Register plugin!
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extern "C"
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void clang_registerCheckers (CheckerRegistry ®istry) {
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registry.addChecker<MainCallChecker>("example.MainCallChecker", "Disallows calls to functions called main");
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}
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extern "C"
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const char clang_analyzerAPIVersionString[] = CLANG_ANALYZER_API_VERSION_STRING;
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