llvm/utils/not/not.cpp
Reid Kleckner 71c24112f1 not: Only consider exit code 3 to be a crash with --crash
This fixes Clang's test/Index/comment-xml-schema.c with Cygwin's
xmllint.exe, which uses exit(3) for XML validation failure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211550 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-23 22:54:33 +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, nullptr, nullptr, 0, 0,
&ErrMsg);
#ifdef _WIN32
// Handle abort() in msvcrt -- It has exit code as 3. abort(), aka
// unreachable, should be recognized as a crash. However, some binaries use
// exit code 3 on non-crash failure paths, so only do this if we expect a
// crash.
if (ExpectCrash && Result == 3)
Result = -3;
#endif
if (Result < 0) {
errs() << "Error: " << ErrMsg << "\n";
if (ExpectCrash)
return 0;
return 1;
}
if (ExpectCrash)
return 1;
return Result == 0;
}