forked from OSchip/llvm-project
59 lines
2.2 KiB
C++
59 lines
2.2 KiB
C++
//===- SystemUtils.cpp - Utilities for low-level system tasks -------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains functions used to do a variety of low-level, often
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// system-specific, tasks.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/Streams.h"
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#include "llvm/Support/SystemUtils.h"
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#include "llvm/System/Process.h"
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#include "llvm/System/Program.h"
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#include <ostream>
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using namespace llvm;
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bool llvm::CheckBitcodeOutputToConsole(std::ostream* stream_to_check,
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bool print_warning) {
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if (stream_to_check == cout.stream() &&
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sys::Process::StandardOutIsDisplayed()) {
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if (print_warning) {
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cerr << "WARNING: You're attempting to print out a bitcode file.\n"
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<< "This is inadvisable as it may cause display problems. If\n"
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<< "you REALLY want to taste LLVM bitcode first-hand, you\n"
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<< "can force output with the `-f' option.\n\n";
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}
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return true;
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}
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return false;
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}
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/// FindExecutable - Find a named executable, giving the argv[0] of program
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/// being executed. This allows us to find another LLVM tool if it is built
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/// into the same directory, but that directory is neither the current
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/// directory, nor in the PATH. If the executable cannot be found, return an
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/// empty string.
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///
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#undef FindExecutable // needed on windows :(
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sys::Path llvm::FindExecutable(const std::string &ExeName,
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const std::string &ProgramPath) {
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// First check the directory that the calling program is in. We can do this
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// if ProgramPath contains at least one / character, indicating that it is a
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// relative path to bugpoint itself.
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sys::Path Result ( ProgramPath );
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Result.eraseComponent();
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if (!Result.isEmpty()) {
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Result.appendComponent(ExeName);
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if (Result.canExecute())
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return Result;
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}
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return sys::Program::FindProgramByName(ExeName);
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}
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