mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 04:02:41 +01:00
105 lines
2.6 KiB
C++
105 lines
2.6 KiB
C++
//===-- Path.cpp - Implement OS Path Concept --------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file was developed by Reid Spencer and is distributed under the
|
|
// University of Illinois Open Source License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This header file implements the operating system Path concept.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/System/Path.h"
|
|
#include "llvm/Config/config.h"
|
|
#include <cassert>
|
|
|
|
namespace llvm {
|
|
using namespace sys;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
//=== WARNING: Implementation here must contain only TRULY operating system
|
|
//=== independent code.
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
Path
|
|
Path::GetLLVMConfigDir() {
|
|
Path result;
|
|
#ifdef LLVM_ETCDIR
|
|
if (result.setDirectory(LLVM_ETCDIR))
|
|
return result;
|
|
#endif
|
|
return GetLLVMDefaultConfigDir();
|
|
}
|
|
|
|
LLVMFileType
|
|
sys::IdentifyFileType(const char*magic, unsigned length) {
|
|
assert(magic && "Invalid magic number string");
|
|
assert(length >=4 && "Invalid magic number length");
|
|
switch (magic[0]) {
|
|
case 'l':
|
|
if (magic[1] == 'l' && magic[2] == 'v') {
|
|
if (magic[3] == 'c')
|
|
return CompressedBytecodeFileType;
|
|
else if (magic[3] == 'm')
|
|
return BytecodeFileType;
|
|
}
|
|
break;
|
|
|
|
case '!':
|
|
if (length >= 8) {
|
|
if (memcmp(magic,"!<arch>\n",8) == 0)
|
|
return ArchiveFileType;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
return UnknownFileType;
|
|
}
|
|
|
|
bool
|
|
Path::isArchive() const {
|
|
if (readable())
|
|
return hasMagicNumber("!<arch>\012");
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
Path::isDynamicLibrary() const {
|
|
if (readable())
|
|
return hasMagicNumber("\177ELF");
|
|
return false;
|
|
}
|
|
|
|
Path
|
|
Path::FindLibrary(std::string& name) {
|
|
std::vector<sys::Path> LibPaths;
|
|
GetSystemLibraryPaths(LibPaths);
|
|
for (unsigned i = 0; i < LibPaths.size(); ++i) {
|
|
sys::Path FullPath(LibPaths[i]);
|
|
FullPath.appendFile("lib" + name + LTDL_SHLIB_EXT);
|
|
if (FullPath.isDynamicLibrary())
|
|
return FullPath;
|
|
FullPath.elideSuffix();
|
|
FullPath.appendSuffix("a");
|
|
if (FullPath.isArchive())
|
|
return FullPath;
|
|
}
|
|
return sys::Path();
|
|
}
|
|
|
|
std::string
|
|
Path::GetDLLSuffix() {
|
|
return LTDL_SHLIB_EXT;
|
|
}
|
|
|
|
}
|
|
|
|
// Include the truly platform-specific parts of this class.
|
|
#include "platform/Path.cpp"
|
|
|
|
// vim: sw=2 smartindent smarttab tw=80 autoindent expandtab
|