//
//===----------------------------------------------------------------------===//
-#include "llvm/Support/Path.h"
+#include "llvm/Support/COFF.h"
#include "llvm/Support/Endian.h"
+#include "llvm/Support/Errc.h"
+#include "llvm/Support/Path.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Process.h"
FS_Name
};
-// Implemented in Unix/Path.inc and Windows/Path.inc.
-static error_code TempDir(SmallVectorImpl<char> &result);
-
-static error_code createUniqueEntity(const Twine &Model, int &ResultFD,
- SmallVectorImpl<char> &ResultPath,
- bool MakeAbsolute, unsigned Mode,
- FSEntity Type) {
+static std::error_code createUniqueEntity(const Twine &Model, int &ResultFD,
+ SmallVectorImpl<char> &ResultPath,
+ bool MakeAbsolute, unsigned Mode,
+ FSEntity Type) {
SmallString<128> ModelStorage;
Model.toVector(ModelStorage);
// Make model absolute by prepending a temp directory if it's not already.
if (!sys::path::is_absolute(Twine(ModelStorage))) {
SmallString<128> TDir;
- if (error_code EC = TempDir(TDir))
- return EC;
+ sys::path::system_temp_directory(true, TDir);
sys::path::append(TDir, Twine(ModelStorage));
ModelStorage.swap(TDir);
}
// Try to open + create the file.
switch (Type) {
case FS_File: {
- if (error_code EC =
+ if (std::error_code EC =
sys::fs::openFileForWrite(Twine(ResultPath.begin()), ResultFD,
sys::fs::F_RW | sys::fs::F_Excl, Mode)) {
if (EC == errc::file_exists)
return EC;
}
- return error_code::success();
+ return std::error_code();
}
case FS_Name: {
- bool Exists;
- error_code EC = sys::fs::exists(ResultPath.begin(), Exists);
+ std::error_code EC =
+ sys::fs::access(ResultPath.begin(), sys::fs::AccessMode::Exist);
+ if (EC == errc::no_such_file_or_directory)
+ return std::error_code();
if (EC)
return EC;
- if (Exists)
- goto retry_random_path;
- return error_code::success();
+ goto retry_random_path;
}
case FS_Dir: {
- if (error_code EC = sys::fs::create_directory(ResultPath.begin(), false)) {
+ if (std::error_code EC =
+ sys::fs::create_directory(ResultPath.begin(), false)) {
if (EC == errc::file_exists)
goto retry_random_path;
return EC;
}
- return error_code::success();
+ return std::error_code();
}
}
llvm_unreachable("Invalid Type");
return *this;
}
-const_iterator &const_iterator::operator--() {
+bool const_iterator::operator==(const const_iterator &RHS) const {
+ return Path.begin() == RHS.Path.begin() && Position == RHS.Position;
+}
+
+ptrdiff_t const_iterator::operator-(const const_iterator &RHS) const {
+ return Position - RHS.Position;
+}
+
+reverse_iterator rbegin(StringRef Path) {
+ reverse_iterator I;
+ I.Path = Path;
+ I.Position = Path.size();
+ return ++I;
+}
+
+reverse_iterator rend(StringRef Path) {
+ reverse_iterator I;
+ I.Path = Path;
+ I.Component = Path.substr(0, 0);
+ I.Position = 0;
+ return I;
+}
+
+reverse_iterator &reverse_iterator::operator++() {
// If we're at the end and the previous char was a '/', return '.' unless
// we are the root path.
size_t root_dir_pos = root_dir_start(Path);
return *this;
}
-bool const_iterator::operator==(const const_iterator &RHS) const {
- return Path.begin() == RHS.Path.begin() &&
+bool reverse_iterator::operator==(const reverse_iterator &RHS) const {
+ return Path.begin() == RHS.Path.begin() && Component == RHS.Component &&
Position == RHS.Position;
}
-bool const_iterator::operator!=(const const_iterator &RHS) const {
- return !(*this == RHS);
-}
-
-ptrdiff_t const_iterator::operator-(const const_iterator &RHS) const {
- return Position - RHS.Position;
-}
-
-const StringRef root_path(StringRef path) {
+StringRef root_path(StringRef path) {
const_iterator b = begin(path),
pos = b,
e = end(path);
return StringRef();
}
-const StringRef root_name(StringRef path) {
+StringRef root_name(StringRef path) {
const_iterator b = begin(path),
e = end(path);
if (b != e) {
return StringRef();
}
-const StringRef root_directory(StringRef path) {
+StringRef root_directory(StringRef path) {
const_iterator b = begin(path),
pos = b,
e = end(path);
return StringRef();
}
-const StringRef relative_path(StringRef path) {
+StringRef relative_path(StringRef path) {
StringRef root = root_path(path);
return path.substr(root.size());
}
path::append(path, *begin);
}
-const StringRef parent_path(StringRef path) {
+StringRef parent_path(StringRef path) {
size_t end_pos = parent_path_end(path);
if (end_pos == StringRef::npos)
return StringRef();
native(result);
}
-void native(SmallVectorImpl<char> &path) {
+void native(SmallVectorImpl<char> &Path) {
#ifdef LLVM_ON_WIN32
- std::replace(path.begin(), path.end(), '/', '\\');
+ std::replace(Path.begin(), Path.end(), '/', '\\');
+#else
+ for (auto PI = Path.begin(), PE = Path.end(); PI < PE; ++PI) {
+ if (*PI == '\\') {
+ auto PN = PI + 1;
+ if (PN < PE && *PN == '\\')
+ ++PI; // increment once, the for loop will move over the escaped slash
+ else
+ *PI = '/';
+ }
+ }
#endif
}
-const StringRef filename(StringRef path) {
- return *(--end(path));
+StringRef filename(StringRef path) {
+ return *rbegin(path);
}
-const StringRef stem(StringRef path) {
+StringRef stem(StringRef path) {
StringRef fname = filename(path);
size_t pos = fname.find_last_of('.');
if (pos == StringRef::npos)
return fname.substr(0, pos);
}
-const StringRef extension(StringRef path) {
+StringRef extension(StringRef path) {
StringRef fname = filename(path);
size_t pos = fname.find_last_of('.');
if (pos == StringRef::npos)
}
}
-void system_temp_directory(bool erasedOnReboot, SmallVectorImpl<char> &result) {
- result.clear();
-
-#if defined(_CS_DARWIN_USER_TEMP_DIR) && defined(_CS_DARWIN_USER_CACHE_DIR)
- // On Darwin, use DARWIN_USER_TEMP_DIR or DARWIN_USER_CACHE_DIR.
- // macros defined in <unistd.h> on darwin >= 9
- int ConfName = erasedOnReboot? _CS_DARWIN_USER_TEMP_DIR
- : _CS_DARWIN_USER_CACHE_DIR;
- size_t ConfLen = confstr(ConfName, 0, 0);
- if (ConfLen > 0) {
- do {
- result.resize(ConfLen);
- ConfLen = confstr(ConfName, result.data(), result.size());
- } while (ConfLen > 0 && ConfLen != result.size());
-
- if (ConfLen > 0) {
- assert(result.back() == 0);
- result.pop_back();
- return;
- }
-
- result.clear();
- }
-#endif
+static const char preferred_separator_string[] = { preferred_separator, '\0' };
- // Check whether the temporary directory is specified by an environment
- // variable.
- const char *EnvironmentVariable;
-#ifdef LLVM_ON_WIN32
- EnvironmentVariable = "TEMP";
-#else
- EnvironmentVariable = "TMPDIR";
-#endif
- if (char *RequestedDir = getenv(EnvironmentVariable)) {
- result.append(RequestedDir, RequestedDir + strlen(RequestedDir));
- return;
- }
-
- // Fall back to a system default.
- const char *DefaultResult;
-#ifdef LLVM_ON_WIN32
- (void)erasedOnReboot;
- DefaultResult = "C:\\TEMP";
-#else
- if (erasedOnReboot)
- DefaultResult = "/tmp";
- else
- DefaultResult = "/var/tmp";
-#endif
- result.append(DefaultResult, DefaultResult + strlen(DefaultResult));
+StringRef get_separator() {
+ return preferred_separator_string;
}
bool has_root_name(const Twine &path) {
namespace fs {
-error_code getUniqueID(const Twine Path, UniqueID &Result) {
+std::error_code getUniqueID(const Twine Path, UniqueID &Result) {
file_status Status;
- error_code EC = status(Path, Status);
+ std::error_code EC = status(Path, Status);
if (EC)
return EC;
Result = Status.getUniqueID();
- return error_code::success();
+ return std::error_code();
}
-error_code createUniqueFile(const Twine &Model, int &ResultFd,
- SmallVectorImpl<char> &ResultPath, unsigned Mode) {
+std::error_code createUniqueFile(const Twine &Model, int &ResultFd,
+ SmallVectorImpl<char> &ResultPath,
+ unsigned Mode) {
return createUniqueEntity(Model, ResultFd, ResultPath, false, Mode, FS_File);
}
-error_code createUniqueFile(const Twine &Model,
- SmallVectorImpl<char> &ResultPath) {
+std::error_code createUniqueFile(const Twine &Model,
+ SmallVectorImpl<char> &ResultPath) {
int Dummy;
return createUniqueEntity(Model, Dummy, ResultPath, false, 0, FS_Name);
}
-static error_code createTemporaryFile(const Twine &Model, int &ResultFD,
- llvm::SmallVectorImpl<char> &ResultPath,
- FSEntity Type) {
+static std::error_code
+createTemporaryFile(const Twine &Model, int &ResultFD,
+ llvm::SmallVectorImpl<char> &ResultPath, FSEntity Type) {
SmallString<128> Storage;
StringRef P = Model.toNullTerminatedStringRef(Storage);
assert(P.find_first_of(separators) == StringRef::npos &&
true, owner_read | owner_write, Type);
}
-static error_code
+static std::error_code
createTemporaryFile(const Twine &Prefix, StringRef Suffix, int &ResultFD,
- llvm::SmallVectorImpl<char> &ResultPath,
- FSEntity Type) {
+ llvm::SmallVectorImpl<char> &ResultPath, FSEntity Type) {
const char *Middle = Suffix.empty() ? "-%%%%%%" : "-%%%%%%.";
return createTemporaryFile(Prefix + Middle + Suffix, ResultFD, ResultPath,
Type);
}
-
-error_code createTemporaryFile(const Twine &Prefix, StringRef Suffix,
- int &ResultFD,
- SmallVectorImpl<char> &ResultPath) {
+std::error_code createTemporaryFile(const Twine &Prefix, StringRef Suffix,
+ int &ResultFD,
+ SmallVectorImpl<char> &ResultPath) {
return createTemporaryFile(Prefix, Suffix, ResultFD, ResultPath, FS_File);
}
-error_code createTemporaryFile(const Twine &Prefix, StringRef Suffix,
- SmallVectorImpl<char> &ResultPath) {
+std::error_code createTemporaryFile(const Twine &Prefix, StringRef Suffix,
+ SmallVectorImpl<char> &ResultPath) {
int Dummy;
return createTemporaryFile(Prefix, Suffix, Dummy, ResultPath, FS_Name);
}
// This is a mkdtemp with a different pattern. We use createUniqueEntity mostly
// for consistency. We should try using mkdtemp.
-error_code createUniqueDirectory(const Twine &Prefix,
- SmallVectorImpl<char> &ResultPath) {
+std::error_code createUniqueDirectory(const Twine &Prefix,
+ SmallVectorImpl<char> &ResultPath) {
int Dummy;
return createUniqueEntity(Prefix + "-%%%%%%", Dummy, ResultPath,
true, 0, FS_Dir);
}
-error_code make_absolute(SmallVectorImpl<char> &path) {
+std::error_code make_absolute(SmallVectorImpl<char> &path) {
StringRef p(path.data(), path.size());
bool rootDirectory = path::has_root_directory(p),
// Already absolute.
if (rootName && rootDirectory)
- return error_code::success();
+ return std::error_code();
// All of the following conditions will need the current directory.
SmallString<128> current_dir;
- if (error_code ec = current_path(current_dir)) return ec;
+ if (std::error_code ec = current_path(current_dir))
+ return ec;
// Relative path. Prepend the current directory.
if (!rootName && !rootDirectory) {
path::append(current_dir, p);
// Set path to the result.
path.swap(current_dir);
- return error_code::success();
+ return std::error_code();
}
if (!rootName && rootDirectory) {
path::append(curDirRootName, p);
// Set path to the result.
path.swap(curDirRootName);
- return error_code::success();
+ return std::error_code();
}
if (rootName && !rootDirectory) {
SmallString<128> res;
path::append(res, pRootName, bRootDirectory, bRelativePath, pRelativePath);
path.swap(res);
- return error_code::success();
+ return std::error_code();
}
llvm_unreachable("All rootName and rootDirectory combinations should have "
"occurred above!");
}
-error_code create_directories(const Twine &Path, bool IgnoreExisting) {
+std::error_code create_directories(const Twine &Path, bool IgnoreExisting) {
SmallString<128> PathStorage;
StringRef P = Path.toStringRef(PathStorage);
// Be optimistic and try to create the directory
- error_code EC = create_directory(P, IgnoreExisting);
+ std::error_code EC = create_directory(P, IgnoreExisting);
// If we succeeded, or had any error other than the parent not existing, just
// return it.
if (EC != errc::no_such_file_or_directory)
return create_directory(P, IgnoreExisting);
}
+std::error_code copy_file(const Twine &From, const Twine &To) {
+ int ReadFD, WriteFD;
+ if (std::error_code EC = openFileForRead(From, ReadFD))
+ return EC;
+ if (std::error_code EC = openFileForWrite(To, WriteFD, F_None)) {
+ close(ReadFD);
+ return EC;
+ }
+
+ const size_t BufSize = 4096;
+ char *Buf = new char[BufSize];
+ int BytesRead = 0, BytesWritten = 0;
+ for (;;) {
+ BytesRead = read(ReadFD, Buf, BufSize);
+ if (BytesRead <= 0)
+ break;
+ while (BytesRead) {
+ BytesWritten = write(WriteFD, Buf, BytesRead);
+ if (BytesWritten < 0)
+ break;
+ BytesRead -= BytesWritten;
+ }
+ if (BytesWritten < 0)
+ break;
+ }
+ close(ReadFD);
+ close(WriteFD);
+ delete[] Buf;
+
+ if (BytesRead < 0 || BytesWritten < 0)
+ return std::error_code(errno, std::generic_category());
+ return std::error_code();
+}
+
bool exists(file_status status) {
return status_known(status) && status.type() != file_type::file_not_found;
}
return status.type() == file_type::directory_file;
}
-error_code is_directory(const Twine &path, bool &result) {
+std::error_code is_directory(const Twine &path, bool &result) {
file_status st;
- if (error_code ec = status(path, st))
+ if (std::error_code ec = status(path, st))
return ec;
result = is_directory(st);
- return error_code::success();
+ return std::error_code();
}
bool is_regular_file(file_status status) {
return status.type() == file_type::regular_file;
}
-error_code is_regular_file(const Twine &path, bool &result) {
+std::error_code is_regular_file(const Twine &path, bool &result) {
file_status st;
- if (error_code ec = status(path, st))
+ if (std::error_code ec = status(path, st))
return ec;
result = is_regular_file(st);
- return error_code::success();
-}
-
-bool is_symlink(file_status status) {
- return status.type() == file_type::symlink_file;
-}
-
-error_code is_symlink(const Twine &path, bool &result) {
- file_status st;
- if (error_code ec = status(path, st))
- return ec;
- result = is_symlink(st);
- return error_code::success();
+ return std::error_code();
}
bool is_other(file_status status) {
return exists(status) &&
!is_regular_file(status) &&
- !is_directory(status) &&
- !is_symlink(status);
+ !is_directory(status);
}
void directory_entry::replace_filename(const Twine &filename, file_status st) {
Status = st;
}
-error_code has_magic(const Twine &path, const Twine &magic, bool &result) {
- SmallString<32> MagicStorage;
- StringRef Magic = magic.toStringRef(MagicStorage);
- SmallString<32> Buffer;
-
- if (error_code ec = get_magic(path, Magic.size(), Buffer)) {
- if (ec == errc::value_too_large) {
- // Magic.size() > file_size(Path).
- result = false;
- return error_code::success();
- }
- return ec;
- }
-
- result = Magic == Buffer;
- return error_code::success();
-}
-
/// @brief Identify the magic in magic.
- file_magic identify_magic(StringRef Magic) {
+file_magic identify_magic(StringRef Magic) {
if (Magic.size() < 4)
return file_magic::unknown;
switch ((unsigned char)Magic[0]) {
case 0x00: {
- // COFF short import library file
+ // COFF bigobj or short import library file
if (Magic[1] == (char)0x00 && Magic[2] == (char)0xff &&
- Magic[3] == (char)0xff)
- return file_magic::coff_import_library;
+ Magic[3] == (char)0xff) {
+ size_t MinSize = offsetof(COFF::BigObjHeader, UUID) + sizeof(COFF::BigObjMagic);
+ if (Magic.size() < MinSize)
+ return file_magic::coff_import_library;
+
+ int BigObjVersion = *reinterpret_cast<const support::ulittle16_t*>(
+ Magic.data() + offsetof(COFF::BigObjHeader, Version));
+ if (BigObjVersion < COFF::BigObjHeader::MinBigObjectVersion)
+ return file_magic::coff_import_library;
+
+ const char *Start = Magic.data() + offsetof(COFF::BigObjHeader, UUID);
+ if (memcmp(Start, COFF::BigObjMagic, sizeof(COFF::BigObjMagic)) != 0)
+ return file_magic::coff_import_library;
+ return file_magic::coff_object;
+ }
// Windows resource file
const char Expected[] = { 0, 0, 0, 0, '\x20', 0, 0, 0, '\xff' };
if (Magic.size() >= sizeof(Expected) &&
case 6: return file_magic::macho_dynamically_linked_shared_lib;
case 7: return file_magic::macho_dynamic_linker;
case 8: return file_magic::macho_bundle;
- case 9: return file_magic::macho_dynamic_linker;
+ case 9: return file_magic::macho_dynamically_linked_shared_lib_stub;
case 10: return file_magic::macho_dsym_companion;
}
break;
case 0x66: // MPS R4000 Windows
case 0x50: // mc68K
case 0x4c: // 80386 Windows
+ case 0xc4: // ARMNT Windows
if (Magic[1] == 0x01)
return file_magic::coff_object;
return file_magic::unknown;
}
-error_code identify_magic(const Twine &path, file_magic &result) {
- SmallString<32> Magic;
- error_code ec = get_magic(path, Magic.capacity(), Magic);
- if (ec && ec != errc::value_too_large)
- return ec;
+std::error_code identify_magic(const Twine &Path, file_magic &Result) {
+ int FD;
+ if (std::error_code EC = openFileForRead(Path, FD))
+ return EC;
+
+ char Buffer[32];
+ int Length = read(FD, Buffer, sizeof(Buffer));
+ if (close(FD) != 0 || Length < 0)
+ return std::error_code(errno, std::generic_category());
- result = identify_magic(Magic);
- return error_code::success();
+ Result = identify_magic(StringRef(Buffer, Length));
+ return std::error_code();
}
-error_code directory_entry::status(file_status &result) const {
+std::error_code directory_entry::status(file_status &result) const {
return fs::status(Path, result);
}
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