forked from OSchip/llvm-project
70 lines
1.9 KiB
C++
70 lines
1.9 KiB
C++
//===--- clang-wpa.cpp - clang whole program analyzer ---------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This tool reads a sequence of precompiled AST files, and do various
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// cross translation unit analyses.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Analysis/CallGraph.h"
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#include "clang/Basic/FileManager.h"
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#include "clang/Index/TranslationUnit.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace clang;
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using namespace idx;
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static llvm::cl::list<std::string>
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InputFilenames(llvm::cl::Positional, llvm::cl::desc("<input AST files>"));
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// FIXME: this duplicates the one in index-test.cpp.
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class TUnit : public TranslationUnit {
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public:
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TUnit(ASTUnit *ast, const std::string &filename)
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: AST(ast), Filename(filename) {}
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ASTContext &getASTContext() { return AST->getASTContext(); }
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llvm::OwningPtr<ASTUnit> AST;
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std::string Filename;
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};
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int main(int argc, char **argv) {
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llvm::cl::ParseCommandLineOptions(argc, argv, "clang-wpa");
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FileManager FileMgr;
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std::vector<TUnit*> TUnits;
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if (InputFilenames.empty())
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return 0;
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for (unsigned i = 0, e = InputFilenames.size(); i != e; ++i) {
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const std::string &InFile = InputFilenames[i];
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std::string ErrMsg;
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llvm::OwningPtr<ASTUnit> AST;
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AST.reset(ASTUnit::LoadFromPCHFile(InFile, FileMgr, &ErrMsg));
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if (!AST) {
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llvm::errs() << "[" << InFile << "] error: " << ErrMsg << '\n';
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return 1;
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}
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TUnit *TU = new TUnit(AST.take(), InFile);
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TUnits.push_back(TU);
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}
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llvm::OwningPtr<CallGraph> CG;
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CG.reset(new CallGraph());
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for (unsigned i = 0, e = TUnits.size(); i != e; ++i)
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CG->addTU(*(TUnits[i]->AST));
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CG->dump();
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}
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