28c878aeb2
Applied modernize-use-default-member-init clang-tidy check over LLDB. It appears in many files we had already switched to in class member init but never updated the constructors to reflect that. This check is already present in the lldb/.clang-tidy config. Differential Revision: https://reviews.llvm.org/D121481
83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
//===-- DWARFAbbreviationDeclaration.cpp ----------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "DWARFAbbreviationDeclaration.h"
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#include "lldb/Core/dwarf.h"
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#include "lldb/Utility/Stream.h"
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#include "llvm/Object/Error.h"
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#include "DWARFFormValue.h"
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using namespace lldb_private;
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using namespace lldb_private::dwarf;
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DWARFAbbreviationDeclaration::DWARFAbbreviationDeclaration() : m_attributes() {}
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DWARFAbbreviationDeclaration::DWARFAbbreviationDeclaration(dw_tag_t tag,
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uint8_t has_children)
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: m_tag(tag), m_has_children(has_children), m_attributes() {}
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llvm::Expected<DWARFEnumState>
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DWARFAbbreviationDeclaration::extract(const DWARFDataExtractor &data,
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lldb::offset_t *offset_ptr) {
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m_code = data.GetULEB128(offset_ptr);
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if (m_code == 0)
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return DWARFEnumState::Complete;
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m_attributes.clear();
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m_tag = static_cast<dw_tag_t>(data.GetULEB128(offset_ptr));
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if (m_tag == DW_TAG_null)
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return llvm::make_error<llvm::object::GenericBinaryError>(
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"abbrev decl requires non-null tag.");
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m_has_children = data.GetU8(offset_ptr);
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while (data.ValidOffset(*offset_ptr)) {
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dw_attr_t attr = data.GetULEB128(offset_ptr);
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dw_form_t form = data.GetULEB128(offset_ptr);
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// This is the last attribute for this abbrev decl, but there may still be
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// more abbrev decls, so return MoreItems to indicate to the caller that
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// they should call this function again.
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if (!attr && !form)
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return DWARFEnumState::MoreItems;
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if (!attr || !form)
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return llvm::make_error<llvm::object::GenericBinaryError>(
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"malformed abbreviation declaration attribute");
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DWARFFormValue::ValueType val;
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if (form == DW_FORM_implicit_const)
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val.value.sval = data.GetSLEB128(offset_ptr);
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m_attributes.push_back(DWARFAttribute(attr, form, val));
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}
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return llvm::make_error<llvm::object::GenericBinaryError>(
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"abbreviation declaration attribute list not terminated with a null "
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"entry");
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}
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bool DWARFAbbreviationDeclaration::IsValid() {
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return m_code != 0 && m_tag != llvm::dwarf::DW_TAG_null;
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}
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uint32_t
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DWARFAbbreviationDeclaration::FindAttributeIndex(dw_attr_t attr) const {
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uint32_t i;
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const uint32_t kNumAttributes = m_attributes.size();
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for (i = 0; i < kNumAttributes; ++i) {
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if (m_attributes[i].get_attr() == attr)
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return i;
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}
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return DW_INVALID_INDEX;
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}
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