#include "llvm/Object/Archive.h"
#include "llvm/ADT/APInt.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/Twine.h"
#include "llvm/Support/Endian.h"
#include "llvm/Support/MemoryBuffer.h"
void Archive::anchor() { }
+StringRef ArchiveMemberHeader::getName() const {
+ char EndCond;
+ if (Name[0] == '/' || Name[0] == '#')
+ EndCond = ' ';
+ else
+ EndCond = '/';
+ llvm::StringRef::size_type end =
+ llvm::StringRef(Name, sizeof(Name)).find(EndCond);
+ if (end == llvm::StringRef::npos)
+ end = sizeof(Name);
+ assert(end <= sizeof(Name) && end > 0);
+ // Don't include the EndCond if there is one.
+ return llvm::StringRef(Name, end);
+}
+
+uint32_t ArchiveMemberHeader::getSize() const {
+ uint32_t Ret;
+ if (llvm::StringRef(Size, sizeof(Size)).rtrim(" ").getAsInteger(10, Ret))
+ llvm_unreachable("Size is not a decimal number.");
+ return Ret;
+}
+
+sys::fs::perms ArchiveMemberHeader::getAccessMode() const {
+ unsigned Ret;
+ if (StringRef(AccessMode, sizeof(AccessMode)).rtrim(" ").getAsInteger(8, Ret))
+ llvm_unreachable("Access mode is not an octal number.");
+ return static_cast<sys::fs::perms>(Ret);
+}
+
+sys::TimeValue ArchiveMemberHeader::getLastModified() const {
+ unsigned Seconds;
+ if (StringRef(LastModified, sizeof(LastModified)).rtrim(" ")
+ .getAsInteger(10, Seconds))
+ llvm_unreachable("Last modified time not a decimal number.");
+
+ sys::TimeValue Ret;
+ Ret.fromEpochTime(Seconds);
+ return Ret;
+}
+
+unsigned ArchiveMemberHeader::getUID() const {
+ unsigned Ret;
+ if (StringRef(UID, sizeof(UID)).rtrim(" ").getAsInteger(10, Ret))
+ llvm_unreachable("UID time not a decimal number.");
+ return Ret;
+}
+
+unsigned ArchiveMemberHeader::getGID() const {
+ unsigned Ret;
+ if (StringRef(GID, sizeof(GID)).rtrim(" ").getAsInteger(10, Ret))
+ llvm_unreachable("GID time not a decimal number.");
+ return Ret;
+}
+
+static const ArchiveMemberHeader *toHeader(const char *base) {
+ return reinterpret_cast<const ArchiveMemberHeader *>(base);
+}
+
+Archive::Child::Child(const Archive *Parent, const char *Start)
+ : Parent(Parent) {
+ if (!Start)
+ return;
+
+ const ArchiveMemberHeader *Header = toHeader(Start);
+ Data = StringRef(Start, sizeof(ArchiveMemberHeader) + Header->getSize());
+
+ // Setup StartOfFile and PaddingBytes.
+ StartOfFile = sizeof(ArchiveMemberHeader);
+ // Don't include attached name.
+ StringRef Name = Header->getName();
+ if (Name.startswith("#1/")) {
+ uint64_t NameSize;
+ if (Name.substr(3).rtrim(" ").getAsInteger(10, NameSize))
+ llvm_unreachable("Long name length is not an integer");
+ StartOfFile += NameSize;
+ }
+}
+
+Archive::Child Archive::Child::getNext() const {
+ size_t SpaceToSkip = Data.size();
+ // If it's odd, add 1 to make it even.
+ if (SpaceToSkip & 1)
+ ++SpaceToSkip;
+
+ const char *NextLoc = Data.data() + SpaceToSkip;
+
+ // Check to see if this is past the end of the archive.
+ if (NextLoc >= Parent->Data->getBufferEnd())
+ return Child(Parent, NULL);
+
+ return Child(Parent, NextLoc);
+}
+
error_code Archive::Child::getName(StringRef &Result) const {
StringRef name = getRawName();
// Check if it's a special name.
return object_error::success;
}
+error_code Archive::Child::getMemoryBuffer(OwningPtr<MemoryBuffer> &Result,
+ bool FullPath) const {
+ StringRef Name;
+ if (error_code ec = getName(Name))
+ return ec;
+ SmallString<128> Path;
+ Result.reset(MemoryBuffer::getMemBuffer(
+ getBuffer(), FullPath ? (Twine(Parent->getFileName()) + "(" + Name + ")")
+ .toStringRef(Path)
+ : Name,
+ false));
+ return error_code::success();
+}
+
error_code Archive::Child::getAsBinary(OwningPtr<Binary> &Result) const {
OwningPtr<Binary> ret;
OwningPtr<MemoryBuffer> Buff;
}
Archive::Archive(MemoryBuffer *source, error_code &ec)
- : Binary(Binary::ID_Archive, source) {
+ : Binary(Binary::ID_Archive, source), SymbolTable(end_children()) {
// Check for sufficient magic.
if (!source || source->getBufferSize()
< (8 + sizeof(ArchiveMemberHeader)) // Smallest archive.
// Second member : // (may exist, if it exists, points to the string table)
// Note : The string table is used if the filename exceeds 15 characters
// BSD archive format
- // First member : __.SYMDEF (points to the symbol table)
- // There is no string table, if the filename exceeds 15 characters or has a
- // embedded space, the filename has #1/<size>, The size represents the size
+ // First member : __.SYMDEF or "__.SYMDEF SORTED" (the symbol table)
+ // There is no string table, if the filename exceeds 15 characters or has a
+ // embedded space, the filename has #1/<size>, The size represents the size
// of the filename that needs to be read after the archive header
// COFF archive format
// First member : /
return;
}
+ if (Name.startswith("#1/")) {
+ Format = K_BSD;
+ // We know this is BSD, so getName will work since there is no string table.
+ ec = i->getName(Name);
+ if (ec)
+ return;
+ if (Name == StringRef("__.SYMDEF SORTED\0\0\0", 20))
+ SymbolTable = i;
+ return;
+ }
+
if (Name == "/") {
SymbolTable = i;
Archive::child_iterator Archive::begin_children(bool skip_internal) const {
const char *Loc = Data->getBufferStart() + strlen(Magic);
- size_t Size = sizeof(ArchiveMemberHeader) +
- ToHeader(Loc)->getSize();
- Child c(this, StringRef(Loc, Size));
+ Child c(this, Loc);
// Skip internals at the beginning of an archive.
- if (skip_internal && isInternalMember(*ToHeader(Loc)))
+ if (skip_internal && isInternalMember(*toHeader(Loc)))
return c.getNext();
return c;
}
Archive::child_iterator Archive::end_children() const {
- return Child(this, StringRef(0, 0));
+ return Child(this, NULL);
}
error_code Archive::Symbol::getName(StringRef &Result) const {
}
const char *Loc = Parent->getData().begin() + Offset;
- size_t Size = sizeof(ArchiveMemberHeader) +
- ToHeader(Loc)->getSize();
- Result = Child(Parent, StringRef(Loc, Size));
+ Result = Child(Parent, Loc);
return object_error::success;
}
}
Archive::symbol_iterator Archive::begin_symbols() const {
+ if (SymbolTable == end_children())
+ return symbol_iterator(Symbol(this, 0, 0));
+
const char *buf = SymbolTable->getBuffer().begin();
if (kind() == K_GNU) {
uint32_t symbol_count = 0;
}
Archive::symbol_iterator Archive::end_symbols() const {
+ if (SymbolTable == end_children())
+ return symbol_iterator(Symbol(this, 0, 0));
+
const char *buf = SymbolTable->getBuffer().begin();
uint32_t symbol_count = 0;
if (kind() == K_GNU) {
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");
} else {
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