Resubmitting 240466 after fixing the linux test suite failures.

A few extras were fixed

- Symbol::GetAddress() now returns an Address object, not a reference. There were places where people were accessing the address of a symbol when the symbol's value wasn't an address symbol. On MacOSX, undefined symbols have a value zero and some places where using the symbol's address and getting an absolute address of zero (since an Address object with no section and an m_offset whose value isn't LLDB_INVALID_ADDRESS is considered an absolute address). So fixing this required some changes to make sure people were getting what they expected. 
- Since some places want to access the address as a reference, I added a few new functions to symbol:
    Address &Symbol::GetAddressRef();
    const Address &Symbol::GetAddressRef() const;

Linux test suite passes just fine now.

<rdar://problem/21494354>

llvm-svn: 240702

1 files changed, 2 insertions, 2 deletions

diff --git a/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp b/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
index bdc13e73260..1ceaa2c3761 100644
--- a/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
+++ b/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
@@ -2381,7 +2381,7 @@ ObjectFileELF::RelocateSection(Symtab* symtab, const ELFHeader *hdr, const ELFSe
                 symbol = symtab->FindSymbolByID(reloc_symbol(rel));
                 if (symbol)
                 {
-                    addr_t value = symbol->GetAddress().GetFileAddress();
+                    addr_t value = symbol->GetAddressRef().GetFileAddress();
                     DataBufferSP& data_buffer_sp = debug_data.GetSharedDataBuffer();
                     uint64_t* dst = reinterpret_cast<uint64_t*>(data_buffer_sp->GetBytes() + rel_section->GetFileOffset() + ELFRelocation::RelocOffset64(rel));
                     *dst = value + ELFRelocation::RelocAddend64(rel);
@@ -2394,7 +2394,7 @@ ObjectFileELF::RelocateSection(Symtab* symtab, const ELFHeader *hdr, const ELFSe
                 symbol = symtab->FindSymbolByID(reloc_symbol(rel));
                 if (symbol)
                 {
-                    addr_t value = symbol->GetAddress().GetFileAddress();
+                    addr_t value = symbol->GetAddressRef().GetFileAddress();
                     value += ELFRelocation::RelocAddend32(rel);
                     assert((reloc_type(rel) == R_X86_64_32 && (value <= UINT32_MAX)) ||
                            (reloc_type(rel) == R_X86_64_32S &&