本文整理汇总了C++中DWARFCompileUnit::ClearDIEs方法的典型用法代码示例。如果您正苦于以下问题：C++ DWARFCompileUnit::ClearDIEs方法的具体用法？C++ DWARFCompileUnit::ClearDIEs怎么用？C++ DWARFCompileUnit::ClearDIEs使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类DWARFCompileUnit的用法示例。
在下文中一共展示了DWARFCompileUnit::ClearDIEs方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: scoped_timer
//.........这里部分代码省略.........
dw_tag_t tag = die->Tag();
is_variable = tag == DW_TAG_variable;
for (i=0; i<num_attributes; ++i)
{
dw_attr_t attr = attributes.AttributeAtIndex(i);
DWARFFormValue form_value;
switch (attr)
{
case DW_AT_name:
if (attributes.ExtractFormValueAtIndex(dwarf2Data, i, form_value))
name = form_value.AsCString(debug_str);
break;
case DW_AT_MIPS_linkage_name:
if (attributes.ExtractFormValueAtIndex(dwarf2Data, i, form_value))
mangled = form_value.AsCString(debug_str);
break;
case DW_AT_low_pc:
case DW_AT_ranges:
case DW_AT_entry_pc:
if (tag == DW_TAG_subprogram)
add_die = true;
break;
case DW_AT_location:
if (tag == DW_TAG_variable)
{
const DWARFDebugInfoEntry* parent_die = die->GetParent();
while ( parent_die != NULL )
{
switch (parent_die->Tag())
{
case DW_TAG_subprogram:
case DW_TAG_lexical_block:
case DW_TAG_inlined_subroutine:
// Even if this is a function level static, we don't add it. We could theoretically
// add these if we wanted to by introspecting into the DW_AT_location and seeing
// if the location describes a hard coded address, but we don't want the performance
// penalty of that right now.
add_die = false;
// if (attributes.ExtractFormValueAtIndex(dwarf2Data, i, form_value))
// {
// // If we have valid block data, then we have location expression bytes
// // that are fixed (not a location list).
// const uint8_t *block_data = form_value.BlockData();
// if (block_data)
// {
// uint32_t block_length = form_value.Unsigned();
// if (block_length == 1 + attributes.CompileUnitAtIndex(i)->GetAddressByteSize())
// {
// if (block_data[0] == DW_OP_addr)
// add_die = true;
// }
// }
// }
parent_die = NULL; // Terminate the while loop.
break;
case DW_TAG_compile_unit:
add_die = true;
parent_die = NULL; // Terminate the while loop.
break;
default:
parent_die = parent_die->GetParent(); // Keep going in the while loop.
break;
}
}
}
break;
}
}
}
if (add_die && (name || mangled))
{
pubnames_set.AddDescriptor(die->GetOffset() - cu_offset, mangled ? mangled : name);
}
}
if (pubnames_set.NumDescriptors() > 0)
{
m_sets.push_back(pubnames_set);
}
// Keep memory down by clearing DIEs if this generate function
// caused them to be parsed
if (clear_dies)
cu->ClearDIEs (true);
}
}
if (m_sets.empty())
return false;
if (log)
Dump (log.get());
return true;
}