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author | Cary Coutant <ccoutant@gmail.com> | 2021-03-17 21:31:15 -0700 |
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committer | Cary Coutant <ccoutant@gmail.com> | 2021-03-19 13:55:35 -0700 |
commit | 5cde809b7b9da3ad3aa0d65f0e5e92ab199d64f0 (patch) | |
tree | 35266cd948da34e9848af2519d2faef4b813d260 /elfcpp | |
parent | e0d6d274068b02d952852b18adb3feaca1d2bb8a (diff) | |
download | fsf-binutils-gdb-5cde809b7b9da3ad3aa0d65f0e5e92ab199d64f0.zip fsf-binutils-gdb-5cde809b7b9da3ad3aa0d65f0e5e92ab199d64f0.tar.gz fsf-binutils-gdb-5cde809b7b9da3ad3aa0d65f0e5e92ab199d64f0.tar.bz2 |
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.
Diffstat (limited to 'elfcpp')
-rw-r--r-- | elfcpp/ChangeLog | 10 | ||||
-rw-r--r-- | elfcpp/dwarf.h | 89 |
2 files changed, 71 insertions, 28 deletions
diff --git a/elfcpp/ChangeLog b/elfcpp/ChangeLog index 069b7dc..afc32c9 100644 --- a/elfcpp/ChangeLog +++ b/elfcpp/ChangeLog @@ -1,3 +1,13 @@ +2021-03-19 Cary Coutant <ccoutant@gmail.com> + + 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. + 2021-01-09 Nick Clifton <nickc@redhat.com> * 2.36 release branch crated. diff --git a/elfcpp/dwarf.h b/elfcpp/dwarf.h index e24347f..c9a9e02 100644 --- a/elfcpp/dwarf.h +++ b/elfcpp/dwarf.h @@ -152,35 +152,48 @@ enum DW_EH_PE 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 = 0, - DW_LNS_copy = 1, - DW_LNS_advance_pc = 2, - DW_LNS_advance_line = 3, - DW_LNS_set_file = 4, - DW_LNS_set_column = 5, - DW_LNS_negate_stmt = 6, - DW_LNS_set_basic_block = 7, - DW_LNS_const_add_pc = 8, - DW_LNS_fixed_advance_pc = 9, + 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 = 10, - DW_LNS_set_epilogue_begin = 11, - DW_LNS_set_isa = 12 + 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 = 1, - DW_LNE_set_address = 2, - DW_LNE_define_file = 3, + DW_LNE_end_sequence = 0x01, + DW_LNE_set_address = 0x02, + DW_LNE_define_file = 0x03, // DWARF4. - DW_LNE_set_discriminator = 4, + DW_LNE_set_discriminator = 0x04, // HP extensions. DW_LNE_HP_negate_is_UV_update = 0x11, DW_LNE_HP_push_context = 0x12, @@ -191,13 +204,15 @@ enum DW_LINE_EXTENDED_OPS 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_HP_define_proc = 0x20, + DW_LNE_lo_user = 0x80, + DW_LNE_hi_user = 0xff }; enum DW_CHILDREN { - DW_CHILDREN_no =0x00, - DW_CHILDREN_yes =0x01 + DW_CHILDREN_no = 0, + DW_CHILDREN_yes = 1 }; // Source language names and codes. @@ -247,20 +262,38 @@ enum DW_LANG 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_TYPES = 2, - DW_SECT_ABBREV = 3, - DW_SECT_LINE = 4, - DW_SECT_LOC = 5, + 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_MACRO = 8, - DW_SECT_MAX = DW_SECT_MACRO, + 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. |