forked from OSchip/llvm-project
56 lines
2.2 KiB
C++
56 lines
2.2 KiB
C++
//===- SystemUtils.cpp - Utilities for low-level system tasks -------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// 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
|
|
// system-specific, tasks.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Support/SystemUtils.h"
|
|
#include "llvm/Support/Process.h"
|
|
#include "llvm/Support/Program.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
using namespace llvm;
|
|
|
|
bool llvm::CheckBitcodeOutputToConsole(raw_ostream &stream_to_check,
|
|
bool print_warning) {
|
|
if (stream_to_check.is_displayed()) {
|
|
if (print_warning) {
|
|
errs() << "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;
|
|
}
|
|
|
|
/// PrependMainExecutablePath - Prepend the path to the program being executed
|
|
/// to \p ExeName, given the value of argv[0] and the address of main()
|
|
/// itself. This allows us to find another LLVM tool if it is built in the same
|
|
/// directory. An empty string is returned on error; note that this function
|
|
/// just mainpulates the path and doesn't check for executability.
|
|
/// @brief Find a named executable.
|
|
sys::Path llvm::PrependMainExecutablePath(const std::string &ExeName,
|
|
const char *Argv0, void *MainAddr) {
|
|
// 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 the executable itself.
|
|
sys::Path Result = sys::Path::GetMainExecutable(Argv0, MainAddr);
|
|
Result.eraseComponent();
|
|
|
|
if (!Result.isEmpty()) {
|
|
Result.appendComponent(ExeName);
|
|
Result.appendSuffix(sys::Path::GetEXESuffix());
|
|
}
|
|
|
|
return Result;
|
|
}
|