size_t
NameToDIE::Find (const lldb_private::RegularExpression& regex, std::vector<Info> &info_array) const
{
const size_t initial_info_array_size = info_array.size();
collection::const_iterator pos, end = m_collection.end();
for (pos = m_collection.begin(); pos != end; ++pos)
{
if (regex.Execute(pos->first))
info_array.push_back (pos->second);
}
return info_array.size() - initial_info_array_size;
}
DWARFMappedHash::MemoryTable::Result
DWARFMappedHash::MemoryTable::AppendHashDataForRegularExpression (
const lldb_private::RegularExpression& regex,
lldb::offset_t* hash_data_offset_ptr,
Pair &pair) const
{
pair.key = m_data.GetU32 (hash_data_offset_ptr);
// If the key is zero, this terminates our chain of HashData objects
// for this hash value.
if (pair.key == 0)
return eResultEndOfHashData;
// There definitely should be a string for this string offset, if
// there isn't, there is something wrong, return and error
const char *strp_cstr = m_string_table.PeekCStr (pair.key);
if (strp_cstr == NULL)
return eResultError;
const uint32_t count = m_data.GetU32 (hash_data_offset_ptr);
const size_t min_total_hash_data_size = count * m_header.header_data.GetMinimumHashDataByteSize();
if (count > 0 && m_data.ValidOffsetForDataOfSize (*hash_data_offset_ptr, min_total_hash_data_size))
{
const bool match = regex.Execute(strp_cstr);
if (!match && m_header.header_data.HashDataHasFixedByteSize())
{
// If the regex doesn't match and we have fixed size data,
// we can just add the total byte size of all HashData objects
// to the hash data offset and be done...
*hash_data_offset_ptr += min_total_hash_data_size;
}
else
{
// If the string does match, or we don't have fixed size data
// then we need to read the hash data as a stream. If the
// string matches we also append all HashData objects to the
// value array.
for (uint32_t i=0; i<count; ++i)
{
DIEInfo die_info;
if (m_header.Read(m_data, hash_data_offset_ptr, die_info))
{
// Only happened if the HashData of the string matched...
if (match)
pair.value.push_back (die_info);
}
else
{
// Something went wrong while reading the data
*hash_data_offset_ptr = UINT32_MAX;
return eResultError;
}
}
}
// Return the correct response depending on if the string matched
// or not...
if (match)
return eResultKeyMatch; // The key (cstring) matches and we have lookup results!
else
return eResultKeyMismatch; // The key doesn't match, this function will get called
// again for the next key/value or the key terminator
// which in our case is a zero .debug_str offset.
}
else
{
*hash_data_offset_ptr = UINT32_MAX;
return eResultError;
}
}
