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llvm-mirror/utils/not/not.cpp
Rafael Espindola b633c050ce Add a --crash option to not.
Now the two possible uses of not are
* not cmd
  Will return true if cmd doesn't crash and returns false.
* not --crash cmd
  Will return true if cmd crashes.

It will be used/tested in a followup commit for the clang crash recovery
testing.

llvm-svn: 185678
2013-07-05 02:50:03 +00:00

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//===- not.cpp - The 'not' testing tool -----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/Path.h"
#include "llvm/Support/Program.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
int main(int argc, const char **argv) {
bool ExpectCrash = false;
++argv;
--argc;
if (argc > 0 && StringRef(argv[0]) == "--crash") {
++argv;
--argc;
ExpectCrash = true;
}
if (argc == 0)
return 1;
std::string Program = sys::FindProgramByName(argv[0]);
std::string ErrMsg;
int Result = sys::ExecuteAndWait(Program, argv, 0, 0, 0, 0, &ErrMsg);
if (Result < 0) {
errs() << "Error: " << ErrMsg << "\n";
if (ExpectCrash)
return 0;
return 1;
}
if (ExpectCrash)
return 1;
return Result == 0;
}