Delete dead code.

[oota-llvm.git] / lib / Object / Archive.cpp

diff --git a/lib/Object/Archive.cpp b/lib/Object/Archive.cpp
index 52578943decd2d294540f9cae93f7ba091fa5b3b..60c6d21f48237484e2b1493f1d04909844c2ec45 100644 (file)
--- a/lib/Object/Archive.cpp
+++ b/lib/Object/Archive.cpp
@@ -61,6 +61,38 @@ uint32_t ArchiveMemberHeader::getSize() const {
   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);
 }
@@ -178,7 +210,7 @@ error_code Archive::Child::getAsBinary(OwningPtr<Binary> &Result) const {
 }
 
 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.
@@ -204,9 +236,9 @@ Archive::Archive(MemoryBuffer *source, error_code &ec)
   //  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 : /
@@ -224,6 +256,17 @@ Archive::Archive(MemoryBuffer *source, error_code &ec)
     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;
 
@@ -343,6 +386,9 @@ Archive::Symbol Archive::Symbol::getNext() const {
 }
 
 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;
@@ -363,6 +409,9 @@ Archive::symbol_iterator Archive::begin_symbols() const {
 }
 
 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) {