Remove usages of host architecture within ELF object file for unknown parts of ArchSpec.

[ovyalov]

Summary

Remove usages of host architecture within ELF object file for unknown parts of ArchSpec.
Based on Greg's suggestions at http://reviews.llvm.org/D9052

[clayborg]

Very nice.

[ovyalov]

AFFECTED FILES

/lldb/trunk/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp

USERS

ovyalov (Author)

http://reviews.llvm.org/rL235255

source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp

 #include "lldb/Core/PluginManager.h"
 #include "lldb/Core/Section.h"
 #include "lldb/Core/Stream.h"
 #include "lldb/Core/Timer.h"
 #include "lldb/Symbol/DWARFCallFrameInfo.h"
 #include "lldb/Symbol/SymbolContext.h"
 #include "lldb/Target/SectionLoadList.h"
 #include "lldb/Target/Target.h"
-#include "lldb/Host/HostInfo.h"
 
 #include "llvm/ADT/PointerUnion.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/Support/MathExtras.h"
 
 #define CASE_AND_STREAM(s, def, width)                  \
     case def: s->Printf("%-*s", width, #def); break;
 
if (ObjectFileELF::MagicBytesMatch(data_sp, 0, data_sp->GetByteSize()))
 
                     uint32_t gnu_debuglink_crc = 0;
                     std::string gnu_debuglink_file;
                     SectionHeaderColl section_headers;
                     lldb_private::UUID &uuid = spec.GetUUID();
 
                     GetSectionHeaderInfo(section_headers, data, header, uuid, gnu_debuglink_file, gnu_debuglink_crc, spec.GetArchitecture ());
 
-                    // If the module vendor is not set and the module OS matches this host OS, set the module vendor to the host vendor.
                     llvm::Triple &spec_triple = spec.GetArchitecture ().GetTriple ();
-                    if (spec_triple.getVendor () == llvm::Triple::VendorType::UnknownVendor)
-                    {
-                        const llvm::Triple &host_triple = HostInfo::GetArchitecture().GetTriple();
-                        if (spec_triple.getOS () == host_triple.getOS ())
-                            spec_triple.setVendor (host_triple.getVendor ());
-                    }
 
                     if (log)
                         log->Printf ("ObjectFileELF::%s file '%s' module set to triple: %s (architecture %s)", __FUNCTION__, file.GetPath ().c_str (), spec_triple.getTriple ().c_str (), spec.GetArchitecture ().GetArchitectureName ());
 
                     if (!uuid.IsValid())
                     {
                         uint32_t core_notes_crc = 0;
 
if (!section_headers.empty())
         return section_headers.size();
 
     // Only initialize the arch_spec to okay defaults if they're not already set.
     // We'll refine this with note data as we parse the notes.
     if (arch_spec.GetTriple ().getOS () == llvm::Triple::OSType::UnknownOS)
     {
         const uint32_t sub_type = subTypeFromElfHeader(header);
         arch_spec.SetArchitecture (eArchTypeELF, header.e_machine, sub_type);
-
-        switch (arch_spec.GetAddressByteSize())
-        {
-        case 4:
-            {
-                const ArchSpec host_arch32 = HostInfo::GetArchitecture(HostInfo::eArchKind32);
-                if (host_arch32.GetCore() == arch_spec.GetCore())
-                {
-                    arch_spec.GetTriple().setOSName(HostInfo::GetOSString().data());
-                    arch_spec.GetTriple().setVendorName(HostInfo::GetVendorString().data());
-                }
-            }
-            break;
-        case 8:
-            {
-                const ArchSpec host_arch64 = HostInfo::GetArchitecture(HostInfo::eArchKind64);
-                if (host_arch64.GetCore() == arch_spec.GetCore())
-                {
-                    arch_spec.GetTriple().setOSName(HostInfo::GetOSString().data());
-                    arch_spec.GetTriple().setVendorName(HostInfo::GetVendorString().data());
-                }
-            }
-            break;
-        }
     }
 
     // If there are no section headers we are done.
     if (header.e_shnum == 0)
         return 0;
 
     Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_MODULES));