Revert "Explicitly set entry point arch when it's thumb"

Backing out because SymbolFile/Breakpad/symtab.test is failing and it seems to be a legit issue. Will investigate.

This reverts commit 72153f95ee4c1b52d2f4f483f0ea4f650ec863be.

llvm-svn: 373687

1 files changed, 0 insertions, 40 deletions

diff --git a/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp b/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
index 76abe32ff51..e507f0e4d74 100644
--- a/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
+++ b/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
@@ -2703,46 +2703,6 @@ Symtab *ObjectFileELF::GetSymtab() {
     if (m_symtab_up == nullptr)
       m_symtab_up.reset(new Symtab(this));
 
-    // In the event that there's no symbol entry for the entry point we'll
-    // artifically create one. We delegate to the symtab object the figuring
-    // out of the proper size, this will usually make it span til the next
-    // symbol it finds in the section. This means that if there are missing
-    // symbols the entry point might span beyond its function definition.
-    // We're fine with this as it doesn't make it worse than not having a
-    // symbol entry at all.
-    ArchSpec arch = GetArchitecture();
-    auto entry_point_addr = GetEntryPointAddress().GetFileAddress();
-    if (entry_point_addr != LLDB_INVALID_ADDRESS) {
-      if (!m_symtab_up->FindSymbolContainingFileAddress(entry_point_addr)) {
-        uint64_t symbol_id = m_symtab_up->GetNumSymbols();
-        SectionSP section_sp =
-            GetSectionList()->FindSectionContainingFileAddress(entry_point_addr);
-        Symbol symbol(
-            symbol_id,
-            GetNextSyntheticSymbolName().GetCString(), // Symbol name.
-            false,           // Is the symbol name mangled?
-            eSymbolTypeCode, // Type of this symbol.
-            true,            // Is this globally visible?
-            false,           // Is this symbol debug info?
-            false,           // Is this symbol a trampoline?
-            true,            // Is this symbol artificial?
-            section_sp, // Section in which this symbol is defined or null.
-            0,          // Offset in section or symbol value.
-            0,          // Size.
-            false,      // Size is valid.
-            false,      // Contains linker annotations?
-            0);         // Symbol flags.
-        m_symtab_up->AddSymbol(symbol);
-        // When the entry point is arm thumb we need to explicitly set its
-        // class address to reflect that. This is important because expression
-        // evaluation relies on correctly setting a breakpoint at this address.
-        if (arch.GetMachine() == llvm::Triple::arm && (entry_point_addr & 1))
-          m_address_class_map[entry_point_addr ^ 1] = AddressClass::eCodeAlternateISA;
-        else
-          m_address_class_map[entry_point_addr] = AddressClass::eCode;
-      }
-    }
-
     m_symtab_up->CalculateSymbolSizes();
   }