forked from OSchip/llvm-project
[lldb/DWARF] Remove dead code in DWARFDebugInfoEntry
The dumping code is not used by anyone, and is a source of inconsistencies with the llvm dwarf parser, as dumping is implemented at a different level (DWARFDie) there.
This commit is contained in:
Pavel Labath
parent
3834385f27
commit
283658c978
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@ -395,145 +395,6 @@ bool DWARFDebugInfoEntry::GetDIENamesAndRanges(
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return !ranges.IsEmpty();
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}
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// Dump
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//
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// Dumps a debug information entry and all of it's attributes to the specified
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// stream.
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void DWARFDebugInfoEntry::Dump(const DWARFUnit *cu, Stream &s,
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uint32_t recurse_depth) const {
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const DWARFDataExtractor &data = cu->GetData();
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lldb::offset_t offset = m_offset;
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if (data.ValidOffset(offset)) {
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dw_uleb128_t abbrCode = data.GetULEB128(&offset);
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s.Printf("\n0x%8.8x: ", m_offset);
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s.Indent();
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if (abbrCode != m_abbr_idx) {
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s.Printf("error: DWARF has been modified\n");
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} else if (abbrCode) {
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const auto *abbrevDecl = GetAbbreviationDeclarationPtr(cu);
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if (abbrevDecl) {
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s.PutCString(DW_TAG_value_to_name(abbrevDecl->Tag()));
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s.Printf(" [%u] %c\n", abbrCode, abbrevDecl->HasChildren() ? '*' : ' ');
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// Dump all data in the .debug_info/.debug_types for the attributes
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const uint32_t numAttributes = abbrevDecl->NumAttributes();
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for (uint32_t i = 0; i < numAttributes; ++i) {
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DWARFFormValue form_value(cu);
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dw_attr_t attr;
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abbrevDecl->GetAttrAndFormValueByIndex(i, attr, form_value);
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DumpAttribute(cu, data, &offset, s, attr, form_value);
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}
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const DWARFDebugInfoEntry *child = GetFirstChild();
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if (recurse_depth > 0 && child) {
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s.IndentMore();
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while (child) {
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child->Dump(cu, s, recurse_depth - 1);
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child = child->GetSibling();
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}
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s.IndentLess();
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}
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} else
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s.Printf("Abbreviation code note found in 'debug_abbrev' class for "
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"code: %u\n",
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abbrCode);
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} else {
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s.Printf("NULL\n");
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}
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}
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}
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// DumpAttribute
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//
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// Dumps a debug information entry attribute along with it's form. Any special
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// display of attributes is done (disassemble location lists, show enumeration
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// values for attributes, etc).
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void DWARFDebugInfoEntry::DumpAttribute(
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const DWARFUnit *cu, const DWARFDataExtractor &data,
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lldb::offset_t *offset_ptr, Stream &s, dw_attr_t attr,
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DWARFFormValue &form_value) {
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bool show_form = s.GetFlags().Test(DWARFDebugInfo::eDumpFlag_ShowForm);
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s.Printf(" ");
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s.Indent(DW_AT_value_to_name(attr));
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if (show_form) {
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s.Printf("[%s", DW_FORM_value_to_name(form_value.Form()));
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}
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if (!form_value.ExtractValue(data, offset_ptr))
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return;
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if (show_form) {
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if (form_value.Form() == DW_FORM_indirect) {
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s.Printf(" [%s]", DW_FORM_value_to_name(form_value.Form()));
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}
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s.PutCString("] ");
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}
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s.PutCString("( ");
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// Check to see if we have any special attribute formatters
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switch (attr) {
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case DW_AT_stmt_list:
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s.Printf("0x%8.8" PRIx64, form_value.Unsigned());
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break;
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case DW_AT_language:
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s.PutCString(DW_LANG_value_to_name(form_value.Unsigned()));
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break;
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case DW_AT_encoding:
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s.PutCString(DW_ATE_value_to_name(form_value.Unsigned()));
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break;
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case DW_AT_frame_base:
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case DW_AT_location:
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case DW_AT_data_member_location: {
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const uint8_t *blockData = form_value.BlockData();
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if (blockData) {
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// Location description is inlined in data in the form value
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DWARFDataExtractor locationData(data,
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(*offset_ptr) - form_value.Unsigned(),
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form_value.Unsigned());
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DWARFExpression::PrintDWARFExpression(
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s, locationData, DWARFUnit::GetAddressByteSize(cu), 4, false);
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} else {
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// We have a location list offset as the value that is the offset into
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// the .debug_loc section that describes the value over it's lifetime
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uint64_t debug_loc_offset = form_value.Unsigned();
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DWARFExpression::PrintDWARFLocationList(s, cu, cu->GetLocationData(),
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debug_loc_offset);
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}
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} break;
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case DW_AT_abstract_origin:
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case DW_AT_specification: {
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DWARFDIE abstract_die = form_value.Reference();
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form_value.Dump(s);
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// *ostrm_ptr << HEX32 << abstract_die.GetOffset() << " ( ";
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abstract_die.GetName(s);
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} break;
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case DW_AT_type: {
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DWARFDIE type_die = form_value.Reference();
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s.PutCString(" ( ");
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type_die.AppendTypeName(s);
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s.PutCString(" )");
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} break;
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default:
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break;
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}
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s.PutCString(" )\n");
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}
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// Get all attribute values for a given DIE, including following any
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// specification or abstract origin attributes and including those in the
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// results. Any duplicate attributes will have the first instance take
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@ -99,15 +99,6 @@ public:
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const char *GetQualifiedName(DWARFUnit *cu, const DWARFAttributes &attributes,
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std::string &storage) const;
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void Dump(const DWARFUnit *cu, lldb_private::Stream &s,
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uint32_t recurse_depth) const;
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static void
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DumpAttribute(const DWARFUnit *cu,
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const lldb_private::DWARFDataExtractor &data,
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lldb::offset_t *offset_ptr, lldb_private::Stream &s,
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dw_attr_t attr, DWARFFormValue &form_value);
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bool GetDIENamesAndRanges(
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DWARFUnit *cu, const char *&name, const char *&mangled,
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DWARFRangeList &rangeList, int &decl_file, int &decl_line,
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