//===- SystemUtils.cpp - Utilities for low-level system tasks -------------===//
-//
+//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
//===----------------------------------------------------------------------===//
//
// This file contains functions used to do a variety of low-level, often
//
//===----------------------------------------------------------------------===//
+#include "llvm/Support/Streams.h"
#include "llvm/Support/SystemUtils.h"
+#include "llvm/System/Process.h"
#include "llvm/System/Program.h"
-
+#include <ostream>
using namespace llvm;
-/// isStandardOutAConsole - Return true if we can tell that the standard output
-/// stream goes to a terminal window or console.
-bool llvm::isStandardOutAConsole() {
-#if HAVE_ISATTY
- return isatty(1);
-#endif
- // If we don't have isatty, just return false.
+bool llvm::CheckBitcodeOutputToConsole(std::ostream* stream_to_check,
+ bool print_warning) {
+ if (stream_to_check == cout.stream() &&
+ sys::Process::StandardOutIsDisplayed()) {
+ if (print_warning) {
+ cerr << "WARNING: You're attempting to print out a bitcode file.\n"
+ << "This is inadvisable as it may cause display problems. If\n"
+ << "you REALLY want to taste LLVM bitcode first-hand, you\n"
+ << "can force output with the `-f' option.\n\n";
+ }
+ return true;
+ }
return false;
}
-
/// FindExecutable - Find a named executable, giving the argv[0] of program
/// being executed. This allows us to find another LLVM tool if it is built
/// into the same directory, but that directory is neither the current
#undef FindExecutable // needed on windows :(
sys::Path llvm::FindExecutable(const std::string &ExeName,
const std::string &ProgramPath) {
- // First check the directory that the calling program is in. We can do this
+ // First check the directory that the calling program is in. We can do this
// if ProgramPath contains at least one / character, indicating that it is a
// relative path to bugpoint itself.
sys::Path Result ( ProgramPath );
- Result.elideFile();
+ Result.eraseComponent();
if (!Result.isEmpty()) {
- Result.appendFile(ExeName);
- if (Result.executable())
+ Result.appendComponent(ExeName);
+ if (Result.canExecute())
return Result;
}