1 //===- Archive.cpp - ar File Format implementation --------------*- C++ -*-===//
3 //                     The LLVM Compiler Infrastructure
8 //===----------------------------------------------------------------------===//
12 //===----------------------------------------------------------------------===//
14 #include "llvm/Object/Archive.h"
15 #include "llvm/ADT/SmallString.h"
16 #include "llvm/ADT/Twine.h"
17 #include "llvm/Support/Endian.h"
18 #include "llvm/Support/MemoryBuffer.h"
19 #include "llvm/Support/Path.h"
21 using namespace llvm;
23 using namespace llvm::support::endian;
36   llvm::StringRef::size_type end =  in getName()
37       llvm::StringRef(Name, sizeof(Name)).find(EndCond);  in getName()
38   if (end == llvm::StringRef::npos)  in getName()
42   return llvm::StringRef(Name, end);  in getName()
47   if (llvm::StringRef(Size, sizeof(Size)).rtrim(" ").getAsInteger(10, Ret))  in getSize()
123   if (Parent->IsThin) {  in getSize()
124     ErrorOr<uint32_t> Size = getHeader()->getSize();  in getSize()
129   return Data.size() - StartOfFile;  in getSize()
133   ErrorOr<uint32_t> Size = getHeader()->getSize();  in getRawSize()
140   StringRef Name = getHeader()->getName();  in isThinMember()
141   return Parent->IsThin && Name != "/" && Name != "//";  in isThinMember()
154       Parent->getMemoryBufferRef().getBufferIdentifier());  in getFullName()
173   Parent->ThinBuffers.push_back(std::move(*Buf));  in getBuffer()
174   return Parent->ThinBuffers.back()->getBuffer();  in getBuffer()
186   if (NextLoc == Parent->Data.getBufferEnd())  in getNext()
190   if (NextLoc > Parent->Data.getBufferEnd())  in getNext()
201   const char *a = Parent->Data.getBuffer().data();  in getChildOffset()
203   uint64_t offset = c - a;  in getChildOffset()
222     if (offset >= Parent->StringTable.size())  in getName()
224     const char *addr = Parent->StringTable.begin() + offset;  in getName()
227     if (Parent->kind() == K_GNU || Parent->kind() == K_MIPS64) {  in getName()
229       return StringRef(addr, End - 1);  in getName()
239     if (name[name.size() - 1] != '/') {  in getName()
244   if (name[name.size() - 1] == '/')  in getName()
245     return name.substr(0, name.size() - 1);  in getName()
325   StringRef Name = C->getRawName();  in Archive()
353     SymbolTable = *C->getBuffer();  in Archive()
365     ErrorOr<StringRef> NameOrErr = C->getName();  in Archive()
374       SymbolTable = *C->getBuffer();  in Archive()
382       SymbolTable = *C->getBuffer();  in Archive()
390   // MIPS 64-bit ELF archives use a special format of a symbol table.  in Archive()
393   // http://techpubs.sgi.com/library/manuals/4000/007-4658-001/pdf/007-4658-001.pdf  in Archive()
399     SymbolTable = *C->getBuffer();  in Archive()
409     Name = C->getRawName();  in Archive()
416     StringTable = *C->getBuffer();  in Archive()
439   SymbolTable = *C->getBuffer();  in Archive()
450   Name = C->getRawName();  in Archive()
455     StringTable = *C->getBuffer();  in Archive()
490   return Parent->getSymbolTable().begin() + StringIndex;  in getName()
494   const char *Buf = Parent->getSymbolTable().begin();  in getMember()
496   if (Parent->kind() == K_MIPS64 || Parent->kind() == K_DARWIN64)  in getMember()
501   if (Parent->kind() == K_GNU) {  in getMember()
503   } else if (Parent->kind() == K_MIPS64) {  in getMember()
505   } else if (Parent->kind() == K_BSD) {  in getMember()
506     // The SymbolIndex is an index into the ranlib structs that start at  in getMember()
507     // Offsets (the first uint32_t is the number of bytes of the ranlib  in getMember()
508     // structs).  The ranlib structs are a pair of uint32_t's the first  in getMember()
513   } else if (Parent->kind() == K_DARWIN64) {  in getMember()
537     --OffsetIndex;  in getMember()
545   const char *Loc = Parent->getData().begin() + Offset;  in getMember()
555   if (Parent->kind() == K_BSD) {  in getNext()
557     // "__.SYMDEF SORTED" member into the string table for the ranlib  in getNext()
564     // which is the number of bytes of ranlib structs that follow.  The ranlib  in getNext()
569     const char *Buf = Parent->getSymbolTable().begin();  in getNext()
573     // don't change the t.StringIndex as we don't want to reference a ranlib  in getNext()
581       t.StringIndex -= CurRanStrx;  in getNext()
586     t.StringIndex = Parent->getSymbolTable().find('\0', t.StringIndex) + 1;  in getNext()
606     // which is the number of bytes of ranlib structs that follow.  The ranlib  in symbol_begin()
644   uint32_t string_start_offset = buf - getSymbolTable().begin();  in symbol_begin()
675     StringRef SymName = bs->getName();  in findSym()
677       if (auto MemberOrErr = bs->getMember())  in findSym()