808142876c
Summary: A *.cpp file header in LLDB (and in LLDB) should like this: ``` //===-- TestUtilities.cpp -------------------------------------------------===// ``` However in LLDB most of our source files have arbitrary changes to this format and these changes are spreading through LLDB as folks usually just use the existing source files as templates for their new files (most notably the unnecessary editor language indicator `-*- C++ -*-` is spreading and in every review someone is pointing out that this is wrong, resulting in people pointing out that this is done in the same way in other files). This patch removes most of these inconsistencies including the editor language indicators, all the different missing/additional '-' characters, files that center the file name, missing trailing `===//` (mostly caused by clang-format breaking the line). Reviewers: aprantl, espindola, jfb, shafik, JDevlieghere Reviewed By: JDevlieghere Subscribers: dexonsmith, wuzish, emaste, sdardis, nemanjai, kbarton, MaskRay, atanasyan, arphaman, jfb, abidh, jsji, JDevlieghere, usaxena95, lldb-commits Tags: #lldb Differential Revision: https://reviews.llvm.org/D73258
91 lines
3.0 KiB
C++
91 lines
3.0 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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DWARFAbbreviationDeclaration::DWARFAbbreviationDeclaration()
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: m_code(InvalidCode), m_tag(llvm::dwarf::DW_TAG_null), m_has_children(0),
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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_code(InvalidCode), m_tag(tag), m_has_children(has_children),
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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.GetULEB128(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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bool DWARFAbbreviationDeclaration::
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operator==(const DWARFAbbreviationDeclaration &rhs) const {
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return Tag() == rhs.Tag() && HasChildren() == rhs.HasChildren() &&
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m_attributes == rhs.m_attributes;
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}
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