forked from OSchip/llvm-project
[nfc] [lldb] DWARFDebugInfoEntry::Extract(): reindent
This commit is contained in:
Jan Kratochvil
parent
61c29321b3
commit
1b8fdaacf4
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@ -49,161 +49,159 @@ bool DWARFDebugInfoEntry::Extract(const DWARFDataExtractor &data,
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// assert (fixed_form_sizes); // For best performance this should be
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// specified!
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if (m_abbr_idx) {
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lldb::offset_t offset = *offset_ptr;
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const auto *abbrevDecl = GetAbbreviationDeclarationPtr(cu);
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if (abbrevDecl == nullptr) {
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cu->GetSymbolFileDWARF().GetObjectFile()->GetModule()->ReportError(
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"{0x%8.8x}: invalid abbreviation code %u, please file a bug and "
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"attach the file at the start of this error message",
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m_offset, (unsigned)abbr_idx);
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// WE can't parse anymore if the DWARF is borked...
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*offset_ptr = UINT32_MAX;
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return false;
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}
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m_tag = abbrevDecl->Tag();
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m_has_children = abbrevDecl->HasChildren();
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// Skip all data in the .debug_info or .debug_types for the attributes
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const uint32_t numAttributes = abbrevDecl->NumAttributes();
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uint32_t i;
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dw_form_t form;
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for (i = 0; i < numAttributes; ++i) {
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form = abbrevDecl->GetFormByIndexUnchecked(i);
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llvm::Optional<uint8_t> fixed_skip_size =
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DWARFFormValue::GetFixedSize(form, cu);
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if (fixed_skip_size)
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offset += *fixed_skip_size;
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else {
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bool form_is_indirect = false;
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do {
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form_is_indirect = false;
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uint32_t form_size = 0;
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switch (form) {
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// Blocks if inlined data that have a length field and the data bytes
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// inlined in the .debug_info/.debug_types
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case DW_FORM_exprloc:
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case DW_FORM_block:
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form_size = data.GetULEB128(&offset);
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break;
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case DW_FORM_block1:
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form_size = data.GetU8_unchecked(&offset);
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break;
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case DW_FORM_block2:
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form_size = data.GetU16_unchecked(&offset);
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break;
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case DW_FORM_block4:
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form_size = data.GetU32_unchecked(&offset);
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break;
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// Inlined NULL terminated C-strings
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case DW_FORM_string:
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data.GetCStr(&offset);
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break;
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// Compile unit address sized values
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case DW_FORM_addr:
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form_size = cu->GetAddressByteSize();
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break;
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case DW_FORM_ref_addr:
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if (cu->GetVersion() <= 2)
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form_size = cu->GetAddressByteSize();
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else
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form_size = 4;
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break;
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// 0 sized form
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case DW_FORM_flag_present:
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form_size = 0;
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break;
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// 1 byte values
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case DW_FORM_addrx1:
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case DW_FORM_data1:
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case DW_FORM_flag:
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case DW_FORM_ref1:
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case DW_FORM_strx1:
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form_size = 1;
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break;
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// 2 byte values
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case DW_FORM_addrx2:
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case DW_FORM_data2:
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case DW_FORM_ref2:
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case DW_FORM_strx2:
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form_size = 2;
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break;
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// 3 byte values
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case DW_FORM_addrx3:
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case DW_FORM_strx3:
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form_size = 3;
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break;
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// 4 byte values
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case DW_FORM_addrx4:
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case DW_FORM_data4:
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case DW_FORM_ref4:
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case DW_FORM_strx4:
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form_size = 4;
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break;
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// 8 byte values
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case DW_FORM_data8:
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case DW_FORM_ref8:
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case DW_FORM_ref_sig8:
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form_size = 8;
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break;
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// signed or unsigned LEB 128 values
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case DW_FORM_addrx:
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case DW_FORM_loclistx:
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case DW_FORM_rnglistx:
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case DW_FORM_sdata:
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case DW_FORM_udata:
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case DW_FORM_ref_udata:
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case DW_FORM_GNU_addr_index:
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case DW_FORM_GNU_str_index:
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case DW_FORM_strx:
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data.Skip_LEB128(&offset);
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break;
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case DW_FORM_indirect:
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form_is_indirect = true;
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form = data.GetULEB128(&offset);
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break;
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case DW_FORM_strp:
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case DW_FORM_line_strp:
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case DW_FORM_sec_offset:
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data.GetU32(&offset);
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break;
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case DW_FORM_implicit_const:
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form_size = 0;
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break;
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default:
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cu->GetSymbolFileDWARF().GetObjectFile()->GetModule()->ReportError(
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"{0x%8.8x}: Unsupported DW_FORM_0x%x, please file a bug and "
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"attach the file at the start of this error message",
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m_offset, (unsigned)form);
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*offset_ptr = m_offset;
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return false;
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}
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offset += form_size;
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} while (form_is_indirect);
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}
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}
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*offset_ptr = offset;
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return true;
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} else {
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if (m_abbr_idx == 0) {
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m_tag = llvm::dwarf::DW_TAG_null;
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m_has_children = false;
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return true; // NULL debug tag entry
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}
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return false;
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lldb::offset_t offset = *offset_ptr;
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const auto *abbrevDecl = GetAbbreviationDeclarationPtr(cu);
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if (abbrevDecl == nullptr) {
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cu->GetSymbolFileDWARF().GetObjectFile()->GetModule()->ReportError(
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"{0x%8.8x}: invalid abbreviation code %u, please file a bug and "
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"attach the file at the start of this error message",
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m_offset, (unsigned)abbr_idx);
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// WE can't parse anymore if the DWARF is borked...
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*offset_ptr = UINT32_MAX;
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return false;
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}
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m_tag = abbrevDecl->Tag();
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m_has_children = abbrevDecl->HasChildren();
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// Skip all data in the .debug_info or .debug_types for the attributes
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const uint32_t numAttributes = abbrevDecl->NumAttributes();
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uint32_t i;
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dw_form_t form;
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for (i = 0; i < numAttributes; ++i) {
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form = abbrevDecl->GetFormByIndexUnchecked(i);
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llvm::Optional<uint8_t> fixed_skip_size =
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DWARFFormValue::GetFixedSize(form, cu);
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if (fixed_skip_size)
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offset += *fixed_skip_size;
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else {
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bool form_is_indirect = false;
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do {
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form_is_indirect = false;
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uint32_t form_size = 0;
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switch (form) {
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// Blocks if inlined data that have a length field and the data bytes
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// inlined in the .debug_info/.debug_types
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case DW_FORM_exprloc:
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case DW_FORM_block:
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form_size = data.GetULEB128(&offset);
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break;
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case DW_FORM_block1:
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form_size = data.GetU8_unchecked(&offset);
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break;
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case DW_FORM_block2:
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form_size = data.GetU16_unchecked(&offset);
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break;
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case DW_FORM_block4:
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form_size = data.GetU32_unchecked(&offset);
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break;
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// Inlined NULL terminated C-strings
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case DW_FORM_string:
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data.GetCStr(&offset);
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break;
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// Compile unit address sized values
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case DW_FORM_addr:
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form_size = cu->GetAddressByteSize();
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break;
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case DW_FORM_ref_addr:
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if (cu->GetVersion() <= 2)
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form_size = cu->GetAddressByteSize();
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else
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form_size = 4;
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break;
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// 0 sized form
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case DW_FORM_flag_present:
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form_size = 0;
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break;
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// 1 byte values
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case DW_FORM_addrx1:
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case DW_FORM_data1:
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case DW_FORM_flag:
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case DW_FORM_ref1:
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case DW_FORM_strx1:
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form_size = 1;
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break;
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// 2 byte values
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case DW_FORM_addrx2:
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case DW_FORM_data2:
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case DW_FORM_ref2:
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case DW_FORM_strx2:
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form_size = 2;
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break;
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// 3 byte values
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case DW_FORM_addrx3:
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case DW_FORM_strx3:
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form_size = 3;
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break;
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// 4 byte values
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case DW_FORM_addrx4:
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case DW_FORM_data4:
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case DW_FORM_ref4:
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case DW_FORM_strx4:
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form_size = 4;
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break;
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// 8 byte values
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case DW_FORM_data8:
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case DW_FORM_ref8:
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case DW_FORM_ref_sig8:
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form_size = 8;
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break;
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// signed or unsigned LEB 128 values
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case DW_FORM_addrx:
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case DW_FORM_loclistx:
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case DW_FORM_rnglistx:
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case DW_FORM_sdata:
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case DW_FORM_udata:
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case DW_FORM_ref_udata:
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case DW_FORM_GNU_addr_index:
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case DW_FORM_GNU_str_index:
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case DW_FORM_strx:
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data.Skip_LEB128(&offset);
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break;
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case DW_FORM_indirect:
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form_is_indirect = true;
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form = data.GetULEB128(&offset);
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break;
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case DW_FORM_strp:
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case DW_FORM_line_strp:
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case DW_FORM_sec_offset:
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data.GetU32(&offset);
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break;
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case DW_FORM_implicit_const:
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form_size = 0;
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break;
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default:
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cu->GetSymbolFileDWARF().GetObjectFile()->GetModule()->ReportError(
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"{0x%8.8x}: Unsupported DW_FORM_0x%x, please file a bug and "
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"attach the file at the start of this error message",
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m_offset, (unsigned)form);
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*offset_ptr = m_offset;
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return false;
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}
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offset += form_size;
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} while (form_is_indirect);
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}
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}
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*offset_ptr = offset;
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return true;
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}
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static DWARFRangeList GetRangesOrReportError(DWARFUnit &unit,
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