summaryrefslogtreecommitdiffstats
path: root/lib/System/Path.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/System/Path.cpp')
-rw-r--r--lib/System/Path.cpp264
1 files changed, 0 insertions, 264 deletions
diff --git a/lib/System/Path.cpp b/lib/System/Path.cpp
deleted file mode 100644
index 4445c66..0000000
--- a/lib/System/Path.cpp
+++ /dev/null
@@ -1,264 +0,0 @@
-//===-- Path.cpp - Implement OS Path Concept --------------------*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file 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>
-#include <cstring>
-#include <ostream>
-using namespace llvm;
-using namespace sys;
-
-//===----------------------------------------------------------------------===//
-//=== WARNING: Implementation here must contain only TRULY operating system
-//=== independent code.
-//===----------------------------------------------------------------------===//
-
-bool Path::operator==(const Path &that) const {
- return path == that.path;
-}
-
-bool Path::operator<(const Path& that) const {
- return path < that.path;
-}
-
-Path
-Path::GetLLVMConfigDir() {
- Path result;
-#ifdef LLVM_ETCDIR
- if (result.set(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 ((unsigned char)magic[0]) {
- case 0xDE: // 0x0B17C0DE = BC wraper
- if (magic[1] == (char)0xC0 && magic[2] == (char)0x17 &&
- magic[3] == (char)0x0B)
- return Bitcode_FileType;
- break;
- case 'B':
- if (magic[1] == 'C' && magic[2] == (char)0xC0 && magic[3] == (char)0xDE)
- return Bitcode_FileType;
- break;
- case '!':
- if (length >= 8)
- if (memcmp(magic,"!<arch>\n",8) == 0)
- return Archive_FileType;
- break;
-
- case '\177':
- if (magic[1] == 'E' && magic[2] == 'L' && magic[3] == 'F') {
- if (length >= 18 && magic[17] == 0)
- switch (magic[16]) {
- default: break;
- case 1: return ELF_Relocatable_FileType;
- case 2: return ELF_Executable_FileType;
- case 3: return ELF_SharedObject_FileType;
- case 4: return ELF_Core_FileType;
- }
- }
- break;
-
- case 0xCA:
- if (magic[1] == char(0xFE) && magic[2] == char(0xBA) &&
- magic[3] == char(0xBE)) {
- // This is complicated by an overlap with Java class files.
- // See the Mach-O section in /usr/share/file/magic for details.
- if (length >= 8 && magic[7] < 43)
- // FIXME: Universal Binary of any type.
- return Mach_O_DynamicallyLinkedSharedLib_FileType;
- }
- break;
-
- case 0xFE:
- case 0xCE: {
- uint16_t type = 0;
- if (magic[0] == char(0xFE) && magic[1] == char(0xED) &&
- magic[2] == char(0xFA) && magic[3] == char(0xCE)) {
- /* Native endian */
- if (length >= 16) type = magic[14] << 8 | magic[15];
- } else if (magic[0] == char(0xCE) && magic[1] == char(0xFA) &&
- magic[2] == char(0xED) && magic[3] == char(0xFE)) {
- /* Reverse endian */
- if (length >= 14) type = magic[13] << 8 | magic[12];
- }
- switch (type) {
- default: break;
- case 1: return Mach_O_Object_FileType;
- case 2: return Mach_O_Executable_FileType;
- case 3: return Mach_O_FixedVirtualMemorySharedLib_FileType;
- case 4: return Mach_O_Core_FileType;
- case 5: return Mach_O_PreloadExectuable_FileType;
- case 6: return Mach_O_DynamicallyLinkedSharedLib_FileType;
- case 7: return Mach_O_DynamicLinker_FileType;
- case 8: return Mach_O_Bundle_FileType;
- case 9: return Mach_O_DynamicallyLinkedSharedLibStub_FileType;
- case 10: break; // FIXME: MH_DSYM companion file with only debug.
- }
- break;
- }
- case 0xF0: // PowerPC Windows
- case 0x83: // Alpha 32-bit
- case 0x84: // Alpha 64-bit
- case 0x66: // MPS R4000 Windows
- case 0x50: // mc68K
- case 0x4c: // 80386 Windows
- if (magic[1] == 0x01)
- return COFF_FileType;
-
- case 0x90: // PA-RISC Windows
- case 0x68: // mc68K Windows
- if (magic[1] == 0x02)
- return COFF_FileType;
- break;
-
- default:
- break;
- }
- return Unknown_FileType;
-}
-
-bool
-Path::isArchive() const {
- return hasMagicNumber("!<arch>\012");
-}
-
-bool
-Path::isDynamicLibrary() const {
- std::string Magic;
- if (getMagicNumber(Magic, 64))
- switch (IdentifyFileType(Magic.c_str(),
- static_cast<unsigned>(Magic.length()))) {
- default: return false;
- case Mach_O_FixedVirtualMemorySharedLib_FileType:
- case Mach_O_DynamicallyLinkedSharedLib_FileType:
- case Mach_O_DynamicallyLinkedSharedLibStub_FileType:
- case ELF_SharedObject_FileType:
- case COFF_FileType: return true;
- }
-
- 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.appendComponent("lib" + name + LTDL_SHLIB_EXT);
- if (FullPath.isDynamicLibrary())
- return FullPath;
- FullPath.eraseSuffix();
- FullPath.appendSuffix("a");
- if (FullPath.isArchive())
- return FullPath;
- }
- return sys::Path();
-}
-
-StringRef Path::GetDLLSuffix() {
- return LTDL_SHLIB_EXT;
-}
-
-bool
-Path::isBitcodeFile() const {
- std::string actualMagic;
- if (!getMagicNumber(actualMagic, 4))
- return false;
- LLVMFileType FT =
- IdentifyFileType(actualMagic.c_str(),
- static_cast<unsigned>(actualMagic.length()));
- return FT == Bitcode_FileType;
-}
-
-bool Path::hasMagicNumber(StringRef Magic) const {
- std::string actualMagic;
- if (getMagicNumber(actualMagic, static_cast<unsigned>(Magic.size())))
- return Magic == actualMagic;
- return false;
-}
-
-static void getPathList(const char*path, std::vector<Path>& Paths) {
- const char* at = path;
- const char* delim = strchr(at, PathSeparator);
- Path tmpPath;
- while (delim != 0) {
- std::string tmp(at, size_t(delim-at));
- if (tmpPath.set(tmp))
- if (tmpPath.canRead())
- Paths.push_back(tmpPath);
- at = delim + 1;
- delim = strchr(at, PathSeparator);
- }
-
- if (*at != 0)
- if (tmpPath.set(std::string(at)))
- if (tmpPath.canRead())
- Paths.push_back(tmpPath);
-}
-
-static StringRef getDirnameCharSep(StringRef path, const char *Sep) {
- assert(Sep[0] != '\0' && Sep[1] == '\0' &&
- "Sep must be a 1-character string literal.");
- if (path.empty())
- return ".";
-
- // If the path is all slashes, return a single slash.
- // Otherwise, remove all trailing slashes.
-
- signed pos = static_cast<signed>(path.size()) - 1;
-
- while (pos >= 0 && path[pos] == Sep[0])
- --pos;
-
- if (pos < 0)
- return path[0] == Sep[0] ? Sep : ".";
-
- // Any slashes left?
- signed i = 0;
-
- while (i < pos && path[i] != Sep[0])
- ++i;
-
- if (i == pos) // No slashes? Return "."
- return ".";
-
- // There is at least one slash left. Remove all trailing non-slashes.
- while (pos >= 0 && path[pos] != Sep[0])
- --pos;
-
- // Remove any trailing slashes.
- while (pos >= 0 && path[pos] == Sep[0])
- --pos;
-
- if (pos < 0)
- return path[0] == Sep[0] ? Sep : ".";
-
- return path.substr(0, pos+1);
-}
-
-// Include the truly platform-specific parts of this class.
-#if defined(LLVM_ON_UNIX)
-#include "Unix/Path.inc"
-#endif
-#if defined(LLVM_ON_WIN32)
-#include "Win32/Path.inc"
-#endif
-
OpenPOWER on IntegriCloud