| //===- 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 contains functions used to do a variety of low-level, often |
| // system-specific, tasks. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "llvm/Support/SystemUtils.h" |
| #include "llvm/System/Program.h" |
| #include "llvm/System/Process.h" |
| #include <iostream> |
| |
| using namespace llvm; |
| |
| bool llvm::CheckBytecodeOutputToConsole(std::ostream* stream_to_check, |
| bool print_warning) { |
| if (stream_to_check == &std::cout && sys::Process::StandardOutIsDisplayed()) { |
| if (print_warning) { |
| std::cerr << "WARNING: You're attempting to print out a bytecode file.\n"; |
| std::cerr << "This is inadvisable as it may cause display problems. If\n"; |
| std::cerr << "you REALLY want to taste LLVM bytecode first-hand, you\n"; |
| std::cerr << "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 |
| /// directory, nor in the PATH. If the executable cannot be found, return an |
| /// empty string. |
| /// |
| #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 |
| // if ProgramPath contains at least one / character, indicating that it is a |
| // relative path to bugpoint itself. |
| sys::Path Result ( ProgramPath ); |
| Result.elideFile(); |
| if (!Result.isEmpty()) { |
| Result.appendFile(ExeName); |
| if (Result.executable()) |
| return Result; |
| } |
| |
| return sys::Program::FindProgramByName(ExeName); |
| } |