const char *NextLoc = Data.data() + SpaceToSkip;
// Check to see if this is past the end of the archive.
- if (NextLoc >= Parent->Data->getBufferEnd())
+ if (NextLoc >= Parent->Data.getBufferEnd())
return Child(Parent, nullptr);
return Child(Parent, NextLoc);
return name;
}
-ErrorOr<std::unique_ptr<MemoryBuffer>>
-Archive::Child::getMemoryBuffer(bool FullPath) const {
+ErrorOr<MemoryBufferRef> Archive::Child::getMemoryBufferRef() const {
ErrorOr<StringRef> NameOrErr = getName();
if (std::error_code EC = NameOrErr.getError())
return EC;
StringRef Name = NameOrErr.get();
- SmallString<128> Path;
- std::unique_ptr<MemoryBuffer> Ret(MemoryBuffer::getMemBuffer(
- getBuffer(),
- FullPath
- ? (Twine(Parent->getFileName()) + "(" + Name + ")").toStringRef(Path)
- : Name,
- false));
- return std::move(Ret);
+ return MemoryBufferRef(getBuffer(), Name);
}
ErrorOr<std::unique_ptr<Binary>>
Archive::Child::getAsBinary(LLVMContext *Context) const {
- std::unique_ptr<Binary> ret;
- ErrorOr<std::unique_ptr<MemoryBuffer>> BuffOrErr = getMemoryBuffer();
+ ErrorOr<MemoryBufferRef> BuffOrErr = getMemoryBufferRef();
if (std::error_code EC = BuffOrErr.getError())
return EC;
- std::unique_ptr<MemoryBuffer> Buff(BuffOrErr.get().release());
- return createBinary(Buff, Context);
+ return createBinary(BuffOrErr.get(), Context);
}
-ErrorOr<Archive*> Archive::create(MemoryBuffer *Source) {
+ErrorOr<std::unique_ptr<Archive>> Archive::create(MemoryBufferRef Source) {
std::error_code EC;
std::unique_ptr<Archive> Ret(new Archive(Source, EC));
if (EC)
return EC;
- return Ret.release();
+ return std::move(Ret);
}
-Archive::Archive(MemoryBuffer *source, std::error_code &ec)
- : Binary(Binary::ID_Archive, source), SymbolTable(child_end()) {
+Archive::Archive(MemoryBufferRef Source, std::error_code &ec)
+ : Binary(Binary::ID_Archive, Source), SymbolTable(child_end()) {
// Check for sufficient magic.
- assert(source);
- if (source->getBufferSize() < 8 ||
- StringRef(source->getBufferStart(), 8) != Magic) {
+ if (Data.getBufferSize() < 8 ||
+ StringRef(Data.getBufferStart(), 8) != Magic) {
ec = object_error::invalid_file_type;
return;
}
}
Archive::child_iterator Archive::child_begin(bool SkipInternal) const {
- if (Data->getBufferSize() == 8) // empty archive.
+ if (Data.getBufferSize() == 8) // empty archive.
return child_end();
if (SkipInternal)
return FirstRegular;
- const char *Loc = Data->getBufferStart() + strlen(Magic);
+ const char *Loc = Data.getBufferStart() + strlen(Magic);
Child c(this, Loc);
return c;
}
Offset = *(reinterpret_cast<const support::ubig32_t*>(Offsets)
+ SymbolIndex);
} else if (Parent->kind() == K_BSD) {
- llvm_unreachable("BSD format is not supported");
+ // The SymbolIndex is an index into the ranlib structs that start at
+ // Offsets (the first uint32_t is the number of bytes of the ranlib
+ // structs). The ranlib structs are a pair of uint32_t's the first
+ // being a string table offset and the second being the offset into
+ // the archive of the member that defines the symbol. Which is what
+ // is needed here.
+ Offset = *(reinterpret_cast<const support::ulittle32_t *>(Offsets) +
+ (SymbolIndex * 2) + 1);
} else {
uint32_t MemberCount = *reinterpret_cast<const support::ulittle32_t*>(Buf);
Archive::Symbol Archive::Symbol::getNext() const {
Symbol t(*this);
- // Go to one past next null.
- t.StringIndex =
- Parent->SymbolTable->getBuffer().find('\0', t.StringIndex) + 1;
+ if (Parent->kind() == K_BSD) {
+ // t.StringIndex is an offset from the start of the __.SYMDEF or
+ // "__.SYMDEF SORTED" member into the string table for the ranlib
+ // struct indexed by t.SymbolIndex . To change t.StringIndex to the
+ // offset in the string table for t.SymbolIndex+1 we subtract the
+ // its offset from the start of the string table for t.SymbolIndex
+ // and add the offset of the string table for t.SymbolIndex+1.
+
+ // The __.SYMDEF or "__.SYMDEF SORTED" member starts with a uint32_t
+ // which is the number of bytes of ranlib structs that follow. The ranlib
+ // structs are a pair of uint32_t's the first being a string table offset
+ // and the second being the offset into the archive of the member that
+ // define the symbol. After that the next uint32_t is the byte count of
+ // the string table followed by the string table.
+ const char *Buf = Parent->SymbolTable->getBuffer().begin();
+ uint32_t RanlibCount = 0;
+ RanlibCount = (*reinterpret_cast<const support::ulittle32_t *>(Buf)) /
+ (sizeof(uint32_t) * 2);
+ // If t.SymbolIndex + 1 will be past the count of symbols (the RanlibCount)
+ // don't change the t.StringIndex as we don't want to reference a ranlib
+ // past RanlibCount.
+ if (t.SymbolIndex + 1 < RanlibCount) {
+ const char *Ranlibs = Buf + 4;
+ uint32_t CurRanStrx = 0;
+ uint32_t NextRanStrx = 0;
+ CurRanStrx = *(reinterpret_cast<const support::ulittle32_t *>(Ranlibs) +
+ (t.SymbolIndex * 2));
+ NextRanStrx = *(reinterpret_cast<const support::ulittle32_t *>(Ranlibs) +
+ ((t.SymbolIndex + 1) * 2));
+ t.StringIndex -= CurRanStrx;
+ t.StringIndex += NextRanStrx;
+ }
+ } else {
+ // Go to one past next null.
+ t.StringIndex =
+ Parent->SymbolTable->getBuffer().find('\0', t.StringIndex) + 1;
+ }
++t.SymbolIndex;
return t;
}
symbol_count = *reinterpret_cast<const support::ubig32_t*>(buf);
buf += sizeof(uint32_t) + (symbol_count * (sizeof(uint32_t)));
} else if (kind() == K_BSD) {
- llvm_unreachable("BSD archive format is not supported");
+ // The __.SYMDEF or "__.SYMDEF SORTED" member starts with a uint32_t
+ // which is the number of bytes of ranlib structs that follow. The ranlib
+ // structs are a pair of uint32_t's the first being a string table offset
+ // and the second being the offset into the archive of the member that
+ // define the symbol. After that the next uint32_t is the byte count of
+ // the string table followed by the string table.
+ uint32_t ranlib_count = 0;
+ ranlib_count = (*reinterpret_cast<const support::ulittle32_t *>(buf)) /
+ (sizeof(uint32_t) * 2);
+ const char *ranlibs = buf + 4;
+ uint32_t ran_strx = 0;
+ ran_strx = *(reinterpret_cast<const support::ulittle32_t *>(ranlibs));
+ buf += sizeof(uint32_t) + (ranlib_count * (2 * (sizeof(uint32_t))));
+ // Skip the byte count of the string table.
+ buf += sizeof(uint32_t);
+ buf += ran_strx;
} else {
uint32_t member_count = 0;
uint32_t symbol_count = 0;
if (kind() == K_GNU) {
symbol_count = *reinterpret_cast<const support::ubig32_t*>(buf);
} else if (kind() == K_BSD) {
- llvm_unreachable("BSD archive format is not supported");
+ symbol_count = (*reinterpret_cast<const support::ulittle32_t *>(buf)) /
+ (sizeof(uint32_t) * 2);
} else {
uint32_t member_count = 0;
member_count = *reinterpret_cast<const support::ulittle32_t*>(buf);
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