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binutils-gdb/elfcpp/dwarf.h
Cary Coutant 5cde809b7b Add DWARF 5 support in gold. 
elfcpp/
	PR gold/27246
	* dwarf.h (enum DW_LNCT): Add line number table content type codes.
	(enum DW_LINE_OPS): Reformat.
	(enum DW_LINE_EXTENDED_OPS): Reformat.
	(enum DW_CHILDREN): Reformat.
	(enum DW_RLE): Add range list entry types.
	(enum DW_SECT): Update values for DWARF 5.

gold/
	PR gold/27246
	* dwarf_reader.cc (Dwarf_abbrev_table::do_get_abbrev): Handle
	DW_FORM_implicit_const.
	(Dwarf_ranges_table::read_ranges_table): Add version parameter;
	Adjust all callers.  Look for .debug_rnglists section if DWARF 5.
	(Dwarf_ranges_table::read_range_list_v5): New method.
	(Dwarf_die::read_attributes): Handle new DWARF 5 DW_FORM codes.
	(Dwarf_die::skip_attributes): Likewise.
	(Dwarf_info_reader::do_parse): Support DWARF 5 unit header format.
	(Dwarf_info_reader::read_3bytes_from_pointer): New method.
	(Sized_dwarf_line_info::Sized_dwarf_line_info): Initialize
	str_buffer_, str_buffer_start, reloc_map_, line_number_map_.
	Look for .debug_line_str section.
	(Sized_dwarf_line_info::read_header_prolog): Support DWARF 5 prolog.
	(Sized_dwarf_line_info::read_header_tables): Rename to...
	(Sized_dwarf_line_info::read_header_tables_v2): ... this.
	(Sized_dwarf_line_info::read_header_tables_v5): New method.
	(Sized_dwarf_line_info::process_one_opcode): Insert missing "this->".
	Change advance_line to signed int64_t.
	(Sized_dwarf_line_info::read_lines): Add endptr parameter; adjust
	callers.  Insert missing "this->".
	(Sized_dwarf_line_info::read_line_mappings): Support DWARF 5.
	(Sized_dwarf_line_info::do_addr2line): Add debug code.
	* dwarf_reader.h (Dwarf_abbrev_table::Attribute): Add implicit_const
	field. Adjust constructor.
	(Dwarf_abbrev_table::add_sttribute): Add implicit_const parameter.
	(Dwarf_ranges_table::read_ranges_table): Add version parameter.
	(Dwarf_ranges_table::read_range_list_v5): New method.
	(Dwarf_die): Remove unused attr_off field.
	(Dwarf_info_reader::Dwarf_info_reader): Initialize unit_type_ field.
	(Dwarf_info_reader::is_type_unit): New method.
	(Dwarf_info_reader::read_3bytes_from_pointer): New method.
	(Dwarf_info_reader::read_range_list): Call read_range_list_v5 for
	DWARF 5 range lists.
	(Dwarf_info_reader::is_type_unit_): Remove.
	(Dwarf_info_reader::unit_type_): New field.
	(Sized_dwarf_line_info::~Sized_dwarf_line_info): Delete
	str_buffer_start_.
	(Sized_dwarf_line_info::read_header_tables): Rename to...
	(Sized_dwarf_line_info::read_header_tables_v2): ... this.
	(Sized_dwarf_line_info::read_header_tables_v5): New method.
	(Sized_dwarf_line_info::read_lines): Add endptr parameter.
	(Sized_dwarf_line_info::Dwarf_line_infoHeader): Add address_size field.
	(Sized_dwarf_line_info::str_buffer_): New field.
	(Sized_dwarf_line_info::str_buffer_end_): New field.
	(Sized_dwarf_line_info::str_buffer_start_): New field.
	(Sized_dwarf_line_info::end_of_header_length_): New field.
	(Sized_dwarf_line_info::end_of_unit_): New field.
2021-03-19 13:55:35 -07:00

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// dwarf.h -- DWARF2 constants -*- C++ -*-
// Copyright (C) 2006-2021 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of elfcpp.
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public License
// as published by the Free Software Foundation; either version 2, or
// (at your option) any later version.
// In addition to the permissions in the GNU Library General Public
// License, the Free Software Foundation gives you unlimited
// permission to link the compiled version of this file into
// combinations with other programs, and to distribute those
// combinations without any restriction coming from the use of this
// file. (The Library Public License restrictions do apply in other
// respects; for example, they cover modification of the file, and
/// distribution when not linked into a combined executable.)
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
// You should have received a copy of the GNU Library General Public
// License along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
// 02110-1301, USA.
#ifndef ELFCPP_DWARF_H
#define ELFCPP_DWARF_H
namespace elfcpp
{
// DWARF2 codes.
// Include DW_TAG, DW_FORM, DW_AT, DW_OP, DW_ATE, and DW_CFA
// codes from dwarf2.def.
#define DW_FIRST_TAG(name, value) enum DW_TAG { \
name = value
#define DW_TAG(name, value) , name = value
#define DW_TAG_DUP(name, value) , name = value
#define DW_END_TAG };
#define DW_FIRST_FORM(name, value) enum DW_FORM { \
name = value
#define DW_FORM(name, value) , name = value
#define DW_END_FORM };
#define DW_FIRST_AT(name, value) enum DW_AT { \
name = value
#define DW_AT(name, value) , name = value
#define DW_AT_DUP(name, value) , name = value
#define DW_END_AT };
#define DW_FIRST_OP(name, value) enum DW_OP { \
name = value
#define DW_OP(name, value) , name = value
#define DW_OP_DUP(name, value) , name = value
#define DW_END_OP };
#define DW_FIRST_ATE(name, value) enum DW_ENCODING { \
name = value
#define DW_ATE(name, value) , name = value
#define DW_ATE_DUP(name, value) , name = value
#define DW_END_ATE };
#define DW_FIRST_CFA(name, value) enum DW_CFA { \
name = value
#define DW_CFA(name, value) , name = value
#define DW_CFA_DUP(name, value) , name = value
#define DW_END_CFA };
#define DW_FIRST_IDX(name, value) enum dwarf_name_index_attribute { \
name = value
#define DW_IDX(name, value) , name = value
#define DW_IDX_DUP(name, value) , name = value
#define DW_END_IDX };
#define DW_FIRST_UT(name, value) enum dwarf_unit_type { \
name = value
#define DW_UT(name, value) , name = value
#define DW_END_UT };
#include "dwarf2.def"
#undef DW_FIRST_TAG
#undef DW_TAG
#undef DW_TAG_DUP
#undef DW_END_TAG
#undef DW_FIRST_FORM
#undef DW_FORM
#undef DW_END_FORM
#undef DW_FIRST_AT
#undef DW_AT
#undef DW_AT_DUP
#undef DW_END_AT
#undef DW_FIRST_OP
#undef DW_OP
#undef DW_OP_DUP
#undef DW_END_OP
#undef DW_FIRST_ATE
#undef DW_ATE
#undef DW_ATE_DUP
#undef DW_END_ATE
#undef DW_FIRST_CFA
#undef DW_CFA_DUP
#undef DW_CFA
#undef DW_END_CFA
#undef DW_FIRST_IDX
#undef DW_IDX
#undef DW_IDX_DUP
#undef DW_END_IDX
#undef DW_FIRST_UT
#undef DW_UT
#undef DW_END_UT
// Frame unwind information.
enum DW_EH_PE
{
DW_EH_PE_absptr = 0x00,
DW_EH_PE_omit = 0xff,
DW_EH_PE_uleb128 = 0x01,
DW_EH_PE_udata2 = 0x02,
DW_EH_PE_udata4 = 0x03,
DW_EH_PE_udata8 = 0x04,
DW_EH_PE_signed = 0x08,
DW_EH_PE_sleb128 = 0x09,
DW_EH_PE_sdata2 = 0x0a,
DW_EH_PE_sdata4 = 0x0b,
DW_EH_PE_sdata8 = 0x0c,
DW_EH_PE_pcrel = 0x10,
DW_EH_PE_textrel = 0x20,
DW_EH_PE_datarel = 0x30,
DW_EH_PE_funcrel = 0x40,
DW_EH_PE_aligned = 0x50,
DW_EH_PE_indirect = 0x80
};
// Line number table content type codes.
enum DW_LNCT
{
DW_LNCT_path = 0x1,
DW_LNCT_directory_index = 0x2,
DW_LNCT_timestamp = 0x3,
DW_LNCT_size = 0x4,
DW_LNCT_MD5 = 0x5,
DW_LNCT_lo_user = 0x2000,
DW_LNCT_hi_user = 0x3fff
};
// Line number opcodes.
enum DW_LINE_OPS
{
DW_LNS_extended_op = 0x00,
DW_LNS_copy = 0x01,
DW_LNS_advance_pc = 0x02,
DW_LNS_advance_line = 0x03,
DW_LNS_set_file = 0x04,
DW_LNS_set_column = 0x05,
DW_LNS_negate_stmt = 0x06,
DW_LNS_set_basic_block = 0x07,
DW_LNS_const_add_pc = 0x08,
DW_LNS_fixed_advance_pc = 0x09,
// DWARF 3.
DW_LNS_set_prologue_end = 0x0a,
DW_LNS_set_epilogue_begin = 0x0b,
DW_LNS_set_isa = 0x0c
};
// Line number extended opcodes.
enum DW_LINE_EXTENDED_OPS
{
DW_LNE_end_sequence = 0x01,
DW_LNE_set_address = 0x02,
DW_LNE_define_file = 0x03,
// DWARF4.
DW_LNE_set_discriminator = 0x04,
// HP extensions.
DW_LNE_HP_negate_is_UV_update = 0x11,
DW_LNE_HP_push_context = 0x12,
DW_LNE_HP_pop_context = 0x13,
DW_LNE_HP_set_file_line_column = 0x14,
DW_LNE_HP_set_routine_name = 0x15,
DW_LNE_HP_set_sequence = 0x16,
DW_LNE_HP_negate_post_semantics = 0x17,
DW_LNE_HP_negate_function_exit = 0x18,
DW_LNE_HP_negate_front_end_logical = 0x19,
DW_LNE_HP_define_proc = 0x20,
DW_LNE_lo_user = 0x80,
DW_LNE_hi_user = 0xff
};
enum DW_CHILDREN
{
DW_CHILDREN_no = 0,
DW_CHILDREN_yes = 1
};
// Source language names and codes.
enum DW_LANG
{
DW_LANG_C89 = 0x0001,
DW_LANG_C = 0x0002,
DW_LANG_Ada83 = 0x0003,
DW_LANG_C_plus_plus = 0x0004,
DW_LANG_Cobol74 = 0x0005,
DW_LANG_Cobol85 = 0x0006,
DW_LANG_Fortran77 = 0x0007,
DW_LANG_Fortran90 = 0x0008,
DW_LANG_Pascal83 = 0x0009,
DW_LANG_Modula2 = 0x000a,
// DWARF 3.
DW_LANG_Java = 0x000b,
DW_LANG_C99 = 0x000c,
DW_LANG_Ada95 = 0x000d,
DW_LANG_Fortran95 = 0x000e,
DW_LANG_PLI = 0x000f,
DW_LANG_ObjC = 0x0010,
DW_LANG_ObjC_plus_plus = 0x0011,
DW_LANG_UPC = 0x0012,
DW_LANG_D = 0x0013,
// DWARF 4.
DW_LANG_Python = 0x0014,
// DWARF 5.
DW_LANG_Go = 0x0016,
DW_LANG_C_plus_plus_11 = 0x001a,
DW_LANG_C11 = 0x001d,
DW_LANG_C_plus_plus_14 = 0x0021,
DW_LANG_Fortran03 = 0x0022,
DW_LANG_Fortran08 = 0x0023,
DW_LANG_lo_user = 0x8000, // Implementation-defined range start.
DW_LANG_hi_user = 0xffff, // Implementation-defined range start.
// MIPS.
DW_LANG_Mips_Assembler = 0x8001,
// UPC.
DW_LANG_Upc = 0x8765,
// HP extensions.
DW_LANG_HP_Bliss = 0x8003,
DW_LANG_HP_Basic91 = 0x8004,
DW_LANG_HP_Pascal91 = 0x8005,
DW_LANG_HP_IMacro = 0x8006,
DW_LANG_HP_Assembler = 0x8007
};
// Range list entry kinds in .debug_rnglists* section.
enum DW_RLE
{
DW_RLE_end_of_list = 0x00,
DW_RLE_base_addressx = 0x01,
DW_RLE_startx_endx = 0x02,
DW_RLE_startx_length = 0x03,
DW_RLE_offset_pair = 0x04,
DW_RLE_base_address = 0x05,
DW_RLE_start_end = 0x06,
DW_RLE_start_length = 0x07
};
// DWARF section identifiers used in the package format.
// Extensions for Fission. See http://gcc.gnu.org/wiki/DebugFissionDWP.
// Added (with changes) in DWARF 5.
enum DW_SECT
{
DW_SECT_INFO = 1,
DW_SECT_ABBREV = 3,
DW_SECT_LINE = 4,
DW_SECT_LOCLISTS = 5,
DW_SECT_STR_OFFSETS = 6,
DW_SECT_MACINFO = 7,
DW_SECT_RNGLISTS = 8,
DW_SECT_MAX = DW_SECT_RNGLISTS,
// These were used only for the experimental Fission support in DWARF 4.
DW_SECT_TYPES = 2,
DW_SECT_LOC = 5,
DW_SECT_MACRO = 8
};
} // End namespace elfcpp.
#endif // !defined(ELFCPP_DWARF_H)
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