2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
//===-- DWARFAttribute.cpp --------------------------------------*- C++ -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "DWARFAttribute.h"
|
|
#include "DWARFUnit.h"
|
|
#include "DWARFDebugInfo.h"
|
|
|
|
DWARFAttributes::DWARFAttributes() : m_infos() {}
|
|
|
|
DWARFAttributes::~DWARFAttributes() {}
|
|
|
|
uint32_t DWARFAttributes::FindAttributeIndex(dw_attr_t attr) const {
|
|
collection::const_iterator end = m_infos.end();
|
|
collection::const_iterator beg = m_infos.begin();
|
|
collection::const_iterator pos;
|
|
for (pos = beg; pos != end; ++pos) {
|
|
if (pos->attr.get_attr() == attr)
|
|
return std::distance(beg, pos);
|
|
}
|
|
return UINT32_MAX;
|
|
}
|
|
|
|
void DWARFAttributes::Append(const DWARFUnit *cu, dw_offset_t attr_die_offset,
|
|
dw_attr_t attr, dw_form_t form) {
|
|
AttributeValue attr_value = {
|
|
cu, attr_die_offset, {attr, form, DWARFFormValue::ValueType()}};
|
|
m_infos.push_back(attr_value);
|
|
}
|
|
|
|
bool DWARFAttributes::ContainsAttribute(dw_attr_t attr) const {
|
|
return FindAttributeIndex(attr) != UINT32_MAX;
|
|
}
|
|
|
|
bool DWARFAttributes::RemoveAttribute(dw_attr_t attr) {
|
|
uint32_t attr_index = FindAttributeIndex(attr);
|
|
if (attr_index != UINT32_MAX) {
|
|
m_infos.erase(m_infos.begin() + attr_index);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool DWARFAttributes::ExtractFormValueAtIndex(
|
|
uint32_t i, DWARFFormValue &form_value) const {
|
|
const DWARFUnit *cu = CompileUnitAtIndex(i);
|
|
form_value.SetCompileUnit(cu);
|
|
form_value.SetForm(FormAtIndex(i));
|
|
lldb::offset_t offset = DIEOffsetAtIndex(i);
|
|
return form_value.ExtractValue(cu->GetData(), &offset);
|
|
}
|
|
|
|
uint64_t DWARFAttributes::FormValueAsUnsigned(dw_attr_t attr,
|
|
uint64_t fail_value) const {
|
|
const uint32_t attr_idx = FindAttributeIndex(attr);
|
|
if (attr_idx != UINT32_MAX)
|
|
return FormValueAsUnsignedAtIndex(attr_idx, fail_value);
|
|
return fail_value;
|
|
}
|
|
|
|
uint64_t
|
|
DWARFAttributes::FormValueAsUnsignedAtIndex(uint32_t i,
|
|
uint64_t fail_value) const {
|
|
DWARFFormValue form_value;
|
|
if (ExtractFormValueAtIndex(i, form_value))
|
|
return form_value.Reference();
|
|
return fail_value;
|
|
}
|