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Implement ObjectFileELF::GetModuleSpecifications(), and add PlatformLinux code to deal with unknown arch properties.

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CR: Greg Clayton
llvm-svn: 182065
This commit is contained in:
Michael Sartain
2013-05-17 00:20:21 +00:00
parent b9931496f5
commit 9f0013d867
3 changed files with 68 additions and 1 deletions
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40
lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
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@@ -222,6 +222,18 @@ ObjectFileELF::CreateMemoryInstance (const lldb::ModuleSP &module_sp,
return NULL;
}
bool
ObjectFileELF::MagicBytesMatch (DataBufferSP& data_sp,
lldb::addr_t data_offset,
lldb::addr_t data_length)
{
if (data_sp && data_sp->GetByteSize() > (llvm::ELF::EI_NIDENT + data_offset))
{
const uint8_t *magic = data_sp->GetBytes() + data_offset;
return ELFHeader::MagicBytesMatch(magic);
}
return false;
}
size_t
ObjectFileELF::GetModuleSpecifications (const lldb_private::FileSpec& file,
@@ -231,7 +243,33 @@ ObjectFileELF::GetModuleSpecifications (const lldb_private::FileSpec& file,
lldb::offset_t length,
lldb_private::ModuleSpecList &specs)
{
return 0;
const size_t initial_count = specs.GetSize();
if (ObjectFileELF::MagicBytesMatch(data_sp, 0, data_sp->GetByteSize()))
{
DataExtractor data;
data.SetData(data_sp);
elf::ELFHeader header;
if (header.Parse(data, &data_offset))
{
if (data_sp)
{
ModuleSpec spec;
spec.GetFileSpec() = file;
spec.GetArchitecture().SetArchitecture(eArchTypeELF,
header.e_machine,
LLDB_INVALID_CPUTYPE);
if (spec.GetArchitecture().IsValid())
{
// ObjectFileMachO adds the UUID here also, but that isn't in the elf header
// so we'd have to read the entire file in and calculate the md5sum.
// That'd be bad for this routine...
specs.Append(spec);
}
}
}
}
return specs.GetSize() - initial_count;
}
//------------------------------------------------------------------