Move definitions to cpp file. No functionality change.
llvm-svn: 196563
diff --git a/lld/lib/ReaderWriter/FileArchive.cpp b/lld/lib/ReaderWriter/FileArchive.cpp
new file mode 100644
index 0000000..776e546
--- /dev/null
+++ b/lld/lib/ReaderWriter/FileArchive.cpp
@@ -0,0 +1,156 @@
+//===- lld/ReaderWriter/FileArchive.cpp - Archive Library File -----------===//
+//
+// The LLVM Linker
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===---------------------------------------------------------------------===//
+
+#include "lld/ReaderWriter/FileArchive.h"
+
+#include "llvm/ADT/Hashing.h"
+#include "llvm/Object/ObjectFile.h"
+#include "llvm/Object/Archive.h"
+#include "llvm/Support/MemoryBuffer.h"
+
+#include <unordered_map>
+
+namespace lld {
+
+/// \brief Check if any member of the archive contains an Atom with the
+/// specified name and return the File object for that member, or nullptr.
+const File *FileArchive::find(StringRef name, bool dataSymbolOnly) const {
+ auto member = _symbolMemberMap.find(name);
+ if (member == _symbolMemberMap.end())
+ return nullptr;
+
+ llvm::object::Archive::child_iterator ci = member->second;
+
+ if (dataSymbolOnly) {
+ OwningPtr<MemoryBuffer> buff;
+ if (ci->getMemoryBuffer(buff, true))
+ return nullptr;
+ if (isDataSymbol(buff.take(), name))
+ return nullptr;
+ }
+
+ std::vector<std::unique_ptr<File> > result;
+
+ OwningPtr<MemoryBuffer> buff;
+ if (ci->getMemoryBuffer(buff, true))
+ return nullptr;
+ if (_context.logInputFiles())
+ llvm::outs() << buff->getBufferIdentifier() << "\n";
+ std::unique_ptr<MemoryBuffer> mb(buff.take());
+ if (_context.getDefaultReader().parseFile(mb, result))
+ return nullptr;
+
+ assert(result.size() == 1);
+
+ // give up the pointer so that this object no longer manages it
+ return result[0].release();
+}
+
+/// \brief parse each member
+error_code FileArchive::parseAllMembers(
+ std::vector<std::unique_ptr<File> > &result) const {
+ for (auto mf = _archive->begin_children(), me = _archive->end_children();
+ mf != me; ++mf) {
+ OwningPtr<MemoryBuffer> buff;
+ error_code ec;
+ if ((ec = mf->getMemoryBuffer(buff, true)))
+ return ec;
+ if (_context.logInputFiles())
+ llvm::outs() << buff->getBufferIdentifier() << "\n";
+ std::unique_ptr<MemoryBuffer> mbc(buff.take());
+ if ((ec = _context.getDefaultReader().parseFile(mbc, result)))
+ return ec;
+ }
+ return error_code::success();
+}
+
+const ArchiveLibraryFile::atom_collection<DefinedAtom> &
+FileArchive::defined() const {
+ return _definedAtoms;
+}
+
+const ArchiveLibraryFile::atom_collection<UndefinedAtom> &
+FileArchive::undefined() const {
+ return _undefinedAtoms;
+}
+
+const ArchiveLibraryFile::atom_collection<SharedLibraryAtom> &
+FileArchive::sharedLibrary() const {
+ return _sharedLibraryAtoms;
+}
+
+const ArchiveLibraryFile::atom_collection<AbsoluteAtom> &
+FileArchive::absolute() const {
+ return _absoluteAtoms;
+}
+
+error_code FileArchive::isDataSymbol(MemoryBuffer *mb, StringRef symbol) const {
+ std::unique_ptr<llvm::object::ObjectFile> obj(
+ llvm::object::ObjectFile::createObjectFile(mb));
+ error_code ec;
+ llvm::object::SymbolRef::Type symtype;
+ uint32_t symflags;
+ llvm::object::symbol_iterator ibegin = obj->begin_symbols();
+ llvm::object::symbol_iterator iend = obj->end_symbols();
+ StringRef symbolname;
+
+ for (llvm::object::symbol_iterator i = ibegin; i != iend; i.increment(ec)) {
+ if (ec)
+ return ec;
+
+ // Get symbol name
+ if ((ec = i->getName(symbolname)))
+ return ec;
+
+ if (symbolname != symbol)
+ continue;
+
+ // Get symbol flags
+ if ((ec = i->getFlags(symflags)))
+ return ec;
+
+ if (symflags <= llvm::object::SymbolRef::SF_Undefined)
+ continue;
+
+ // Get Symbol Type
+ if ((ec = (i->getType(symtype))))
+ return ec;
+
+ if (symtype == llvm::object::SymbolRef::ST_Data) {
+ return error_code::success();
+ }
+ }
+ return llvm::object::object_error::parse_failed;
+}
+
+FileArchive::FileArchive(const LinkingContext &context,
+ std::unique_ptr<MemoryBuffer> mb, error_code &ec,
+ bool isWholeArchive)
+ : ArchiveLibraryFile(context, mb->getBufferIdentifier()),
+ _isWholeArchive(isWholeArchive) {
+ std::unique_ptr<llvm::object::Archive> archive_obj(
+ new llvm::object::Archive(mb.release(), ec));
+ if (ec)
+ return;
+ _archive.swap(archive_obj);
+
+ // Cache symbols.
+ for (auto i = _archive->begin_symbols(), e = _archive->end_symbols(); i != e;
+ ++i) {
+ StringRef name;
+ llvm::object::Archive::child_iterator member;
+ if ((ec = i->getName(name)))
+ return;
+ if ((ec = i->getMember(member)))
+ return;
+ _symbolMemberMap[name] = member;
+ }
+}
+
+} // end namespace lld