ldc/driver/exe_path.cpp
Martin 60d676e2a1 Drop support for LLVM < 3.5
This allows to clean up the code a little.
2015-10-30 22:24:05 +01:00

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//===-- exe_path.cpp ------------------------------------------------------===//
//
// LDC the LLVM D compiler
//
// This file is distributed under the BSD-style LDC license. See the LICENSE
// file for details.
//
//===----------------------------------------------------------------------===//
#include "exe_path.h"
#include <llvm/Support/Path.h>
#include <llvm/Support/FileSystem.h>
using std::string;
namespace path = llvm::sys::path;
namespace { string exePath; }
void exe_path::initialize(const char* arg0, void* mainAddress)
{
assert(exePath.empty());
exePath = llvm::sys::fs::getMainExecutable(arg0, mainAddress);
}
const string& exe_path::getExePath()
{
assert(!exePath.empty());
return exePath;
}
string exe_path::getBinDir()
{
assert(!exePath.empty());
return path::parent_path(exePath);
}
string exe_path::getBaseDir()
{
string binDir = getBinDir();
assert(!binDir.empty());
return path::parent_path(binDir);
}
string exe_path::prependBinDir(const char* suffix)
{
llvm::SmallString<128> r(getBinDir());
path::append(r, suffix);
return r.str();
}