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65 lines
1.6 KiB
C++
65 lines
1.6 KiB
C++
//===-- exe_path.cpp ------------------------------------------------------===//
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//
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// LDC – the LLVM D compiler
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//
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// This file is distributed under the BSD-style LDC license. See the LICENSE
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// file for details.
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//
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//===----------------------------------------------------------------------===//
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#include "exe_path.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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using std::string;
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namespace path = llvm::sys::path;
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namespace {
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string exePath;
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}
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void exe_path::initialize(const char *arg0) {
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assert(exePath.empty());
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// Some platforms can't implement LLVM's getMainExecutable
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// without being given the address of a function in the main executable.
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// Thus getMainExecutable needs the address of a function;
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// any function address in the main executable will do.
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exePath = llvm::sys::fs::getMainExecutable(
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arg0, reinterpret_cast<void *>(&exe_path::initialize));
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}
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const string &exe_path::getExePath() {
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assert(!exePath.empty());
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return exePath;
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}
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string exe_path::getBinDir() {
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assert(!exePath.empty());
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return path::parent_path(exePath);
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}
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string exe_path::getBaseDir() {
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string binDir = getBinDir();
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assert(!binDir.empty());
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return path::parent_path(binDir);
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}
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string exe_path::getLibDir() {
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llvm::SmallString<128> r(getBaseDir());
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path::append(r, "lib" LDC_LIBDIR_SUFFIX);
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return r.str();
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}
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string exe_path::prependBinDir(const char *suffix) {
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llvm::SmallString<128> r(getBinDir());
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path::append(r, suffix);
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return r.str();
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}
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string exe_path::prependLibDir(const char *suffix) {
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llvm::SmallString<128> r(getLibDir());
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path::append(r, suffix);
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return r.str();
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}
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