[llvm] r249709 - Handle Archive::getNumberOfSymbols being called in an archive with no symbols.

[Rafael Espindola via llvm-commits]

Author: rafael
Date: Thu Oct  8 13:06:20 2015
New Revision: 249709

URL: http://llvm.org/viewvc/llvm-project?rev=249709&view=rev
Log:
Handle Archive::getNumberOfSymbols being called in an archive with no symbols.

No change in llvm, but will be tested from lld.

Modified:
    llvm/trunk/lib/Object/Archive.cpp

Modified: llvm/trunk/lib/Object/Archive.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Object/Archive.cpp?rev=249709&r1=249708&r2=249709&view=diff
==============================================================================
--- llvm/trunk/lib/Object/Archive.cpp (original)
+++ llvm/trunk/lib/Object/Archive.cpp Thu Oct  8 13:06:20 2015
@@ -510,12 +510,12 @@ Archive::symbol_iterator Archive::symbol
 }
 
 Archive::symbol_iterator Archive::symbol_end() const {
-  if (!hasSymbolTable())
-    return symbol_iterator(Symbol(this, 0, 0));
   return symbol_iterator(Symbol(this, getNumberOfSymbols(), 0));
 }
 
 uint32_t Archive::getNumberOfSymbols() const {
+  if (!hasSymbolTable())
+    return 0;
   const char *buf = getSymbolTable().begin();
   if (kind() == K_GNU)
     return read32be(buf);