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//===--- clang-wpa.cpp - clang whole program analyzer ---------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This tool reads a sequence of precompiled AST files, and do various
// cross translation unit analyses.
//
//===----------------------------------------------------------------------===//
#include "clang/Analysis/CallGraph.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Frontend/TextDiagnosticBuffer.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/raw_ostream.h"
using namespace clang;
using namespace idx;
static llvm::cl::list<std::string>
InputFilenames(llvm::cl::Positional, llvm::cl::desc("<input AST files>"));
int main(int argc, char **argv) {
llvm::cl::ParseCommandLineOptions(argc, argv, "clang-wpa");
FileManager FileMgr;
std::vector<ASTUnit*> ASTUnits;
if (InputFilenames.empty())
return 0;
TextDiagnosticBuffer DiagClient;
Diagnostic Diags(&DiagClient);
for (unsigned i = 0, e = InputFilenames.size(); i != e; ++i) {
const std::string &InFile = InputFilenames[i];
std::string ErrMsg;
llvm::OwningPtr<ASTUnit> AST;
AST.reset(ASTUnit::LoadFromPCHFile(InFile, Diags, FileMgr, &ErrMsg));
if (!AST) {
llvm::errs() << "[" << InFile << "] error: " << ErrMsg << '\n';
return 1;
}
ASTUnits.push_back(AST.take());
}
llvm::OwningPtr<CallGraph> CG;
CG.reset(new CallGraph());
for (unsigned i = 0, e = ASTUnits.size(); i != e; ++i)
CG->addTU(*ASTUnits[i]);
CG->ViewCallGraph();
}
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