99ea153e45
gcc/ChangeLog
2012-11-06 Sterling Augustine <saugustine@google.com>
Cary Coutant <ccoutant@google.com>
* common.opt (gno-split-dwarf, gsplit-dwarf): New switches.
* doc/invoke.texi (Debugging Options): Document them.
* gcc.c (replace_extension_spec_func): New function.
(ASM_FINAL_SPEC): Adjust.
(static_spec_functions): Add new field for replace-extension.
(check_live_switch): Adjust comment. Add case for 'g'.
* opts.c (finish_options): Set x_debug_generate_pub_sections based on
x_dwarf_split_debug_info.
(common_handle_option): Add case for OPT_gsplit_dwarf.
* dwarf2out.h (addr_table_entry_struct): Add forward declaration.
(dw_val_struct): Add val_entry pointer.
* dwarf2out.c: (debug_skeleton_info_section,
debug_skeleton_abbrev_section, debug_addr_section,
debug_skeleton_line_section, debug_str_offsets_section): New globals.
(NOT_INDEXED, NO_INDEX_ASSIGNED): New defines.
(indirect_string_node): New field index.
(ate_kind): New enum with fields ate_kind_rtc, ate_kind_rtx_dtprel,
ate_kind_label.
(addr_table_entry): New structure and type.
(dw_loc_list_struct): Add field begin_entry.
(new_loc_desc): Initialize val_entry.
(size_of_loc_descr, output_loc_operands, output_loc_operands_raw):
Add cases for DW_OP_GNU_addr_index and DW_OP_const_index.
(build_cfa_loc): Initialize val_entry.
(AT_index, add_addr_table_entry, remove_addr_table_entry,
add_AT_lbl_id): New functions.
(add_AT_addr, add_AT_range_list): New parameter force_direct.
(output_die_abbrevs): New function.
(add_ranges_by_labels): New parameter force_direct.
(output_line_info): New parameter prologue_only.
(dtprel_bool): New enum with dtprel_false and dtprel_true.
(dw_addr_op, new_addr_loc_descr): New functions.
(DEBUG_DWO_INFO_SECTION, DEBUG_DWO_ABBREV_SECTION,
DEBUG_ADDR_SECTION, DEBUG_NORM_MACINFO_SECTION,
DEBUG_DWO_MACINFO_SECTION, DEBUG_MACINFO_SECTION,
DEBUG_NORM_MACRO_SECTION, DEBUG_DWO_MACRO_SECTION,
DEBUG_MACRO_SECTION, DEBUG_DWO_LINE_SECTION,
DEBUG_DWO_LOC_SECTION, DEBUG_NORM_STR_OFFSETS_SECTION,
DEBUG_DWO_STR_OFFSETS_SECTION, DEBUG_STR_OFFSETS_SECTION,
DEBUG_DWO_STR_SECTION, DEBUG_NORM_STR_SECTION, DEBUG_STR_SECTION,
DEBUG_MACRO_SECTION_FLAGS, DEBUG_SKELETON_LINE_SECTION_LABEL,
DEBUG_SKELETON_INFO_SECTION_LABEL, DEBUG_ADDR_SECTION_LABEL
DEBUG_SKELETON_ABBREV_SECTION_LABEL): New macros.
(DEBUG_STR_SECTION_FLAGS): Adjust.
(TEXT_SECTION_LABEL, COLD_TEXT_SECTION_LABEL,
DEBUG_LINE_SECTION_LABEL, DEBUG_INFO_SECTION_LABEL,
DEBUG_ABBREV_SECTION_LABEL, DEBUG_ADDR_SECTION_LABEL,
DEBUG_LOC_SECTION_LABEL, DEBUG_RANGES_SECTION_LABEL,
DEBUG_MACINFO_SECTION_LABEL, DEBUG_MACRO_SECTION_LABEL): Adjust
indentation.
(debug_skeleton_abbrev_section_label, debug_addr_section_label,
debug_skeleton_line_section_label, debug_skeleton_info_section_label):
New global variables.
(add_AT_flag, add_AT_int, add_AT_unsigned, add_AT_double, add_AT_vec,
add_AT_data8): Initialize val_entry.
(add_AT_low_high_pc): New parameter force_direct. Handle
dwarf_split_debug_info.
(set_indirect_string, find_AT_string_form): New functions.
(AT_string_form): Adjust to call find_AT_string_from.
(add_AT_die_ref, add_AT_fde_ref, add_AT_loc, add_AT_list):
Initialize val_entry.
(addr_index_table): New global variable.
(addr_table_entry_do_hash, addr_table_entry_eq, add_addr_table_entry,
init_addr_table_entry, remove_addr_table_entry, index_addr_table_entry,
remove_loc_list_addr_table_entries): New functions.
(add_AT_addr, add_AT_lbl_id, add_AT_range_list): New parameter
force_direct. Handle dwarf_split_debug_info.
(add_AT_file, add_AT_vms_delta, add_AT_lineptr, add_AT_macptr,
add_AT_offset): Initialize val_entry.
(UNRELOCATED_OFFSET, RELOCATED_OFFSET): New defines.
(size_of_die): Handle dwarf_split_debug_info.
(size_of_aranges, value_format): Call AT_class. Check AT_index.
(output_die_abbrevs): New function.
(output_abbrev_section): Call output_die_abbrevs.
(new_loc_list): Initialize begin_entry.
(output_loc_list): Handle dwarf_split_debug_info.
(output_range_list_offset, output_loc_list_offset,
output_attr_index_or_value, ): New functions.
(output_die): Fix call to dw2_asm_output_data. Call
output_attr_index_or_value and output_range_list_offset.
Adjust logic around dw_val_class_str.
(add_top_lebel_skeleton_die_attrs, get_skeleton_type_unit,
output_skeleton_debug_sections): New functions.
(output_comdat_type_unit, output_pubname, output_aranges): Handle
dwarf_split_debug_info.
(add_ranges_by_labels): New parameter force_direct.
(mem_loc_descriptor, loc_descr): Call new_addr_loc_descr.
(loc_list_from_tree, add_const_value_attribtue): Use dtprel_bools in
place of generic integer.
(dwarf2out_vms_debug_main_pointer, gen_entry_point_die, gen_label_die,
gen_call_site_die, gen_subprogram_die, gen_variable_die,
add_high_low_attributes): Adjust calls to add_AT_lbl_id.
(output_macinfo_op): Adjust indirect_string_logic.
(save_macinfo_strings): New function.
(output_macinfo): Adjust.
(dwarf2out_init): Handle dwarf_split_debug_info.
(index_string, output_index_string_offset, output_index_string): New
functions.
(output_indirect_string): Adjust.
(output_indirect_strings, output_addr_table_entry, output_addr_table):
New functions.
(resolve_addr_in_expr, hash_loc_operands): Handle DW_OP_GNU_addr_index
and DW_OP_GNU_const_index. Handle dwarf_split_debug_info. Call
remove_loc_list_addr_table_entries and remove_addr_table_entry.
(index_location_lists): New function.
(dwarf2out_finish): Handle dwarf_split_debug_info. New variable
main_comp_unit_die. Adjust calls to add_AT_low_high_pc,
add_ranges_by_labels, add_AT_addr, and add_AT_lineptr. Call
save_macinfo_strings and output_indirect_strings.
include/ChangeLog
2012-10-29 Sterling Augustine <saugustine@google.com>
Cary Coutant <ccoutant@google.com>
* dwarf2.h (dwarf_location_list_entry_type): New enum with fields
DW_LLE_GNU_end_of_list_entry, DW_LLE_GNU_base_address_selection_entry,
DW_LLE_GNU_start_end_entry and DW_LLE_GNU_start_length_entry.
Co-Authored-By: Cary Coutant <ccoutant@google.com>
From-SVN: r193267
413 lines
11 KiB
C
413 lines
11 KiB
C
/* Declarations and definitions of codes relating to the DWARF2 and
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DWARF3 symbolic debugging information formats.
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Copyright (C) 1992, 1993, 1995, 1996, 1997, 1999, 2000, 2001, 2002,
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2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
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Free Software Foundation, Inc.
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Written by Gary Funck (gary@intrepid.com) The Ada Joint Program
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Office (AJPO), Florida State University and Silicon Graphics Inc.
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provided support for this effort -- June 21, 1995.
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Derived from the DWARF 1 implementation written by Ron Guilmette
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(rfg@netcom.com), November 1990.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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/* This file is derived from the DWARF specification (a public document)
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Revision 2.0.0 (July 27, 1993) developed by the UNIX International
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Programming Languages Special Interest Group (UI/PLSIG) and distributed
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by UNIX International. Copies of this specification are available from
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UNIX International, 20 Waterview Boulevard, Parsippany, NJ, 07054.
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This file also now contains definitions from the DWARF 3 specification
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published Dec 20, 2005, available from: http://dwarf.freestandards.org. */
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#ifndef _DWARF2_H
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#define _DWARF2_H
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#define DW_TAG(name, value) , name = value
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#define DW_TAG_DUP(name, value) , name = value
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#define DW_FORM(name, value) , name = value
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#define DW_AT(name, value) , name = value
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#define DW_AT_DUP(name, value) , name = value
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#define DW_OP(name, value) , name = value
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#define DW_OP_DUP(name, value) , name = value
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#define DW_ATE(name, value) , name = value
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#define DW_ATE_DUP(name, value) , name = value
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#define DW_CFA(name, value) , name = value
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#define DW_FIRST_TAG(name, value) enum dwarf_tag { \
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name = value
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#define DW_END_TAG };
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#define DW_FIRST_FORM(name, value) enum dwarf_form { \
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name = value
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#define DW_END_FORM };
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#define DW_FIRST_AT(name, value) enum dwarf_attribute { \
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name = value
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#define DW_END_AT };
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#define DW_FIRST_OP(name, value) enum dwarf_location_atom { \
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name = value
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#define DW_END_OP };
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#define DW_FIRST_ATE(name, value) enum dwarf_type { \
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name = value
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#define DW_END_ATE };
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#define DW_FIRST_CFA(name, value) enum dwarf_call_frame_info { \
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name = value
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#define DW_END_CFA };
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#include "dwarf2.def"
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#undef DW_FIRST_TAG
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#undef DW_END_TAG
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#undef DW_FIRST_FORM
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#undef DW_END_FORM
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#undef DW_FIRST_AT
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#undef DW_END_AT
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#undef DW_FIRST_OP
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#undef DW_END_OP
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#undef DW_FIRST_ATE
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#undef DW_END_ATE
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#undef DW_FIRST_CFA
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#undef DW_END_CFA
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#undef DW_TAG
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#undef DW_TAG_DUP
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#undef DW_FORM
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#undef DW_AT
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#undef DW_AT_DUP
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#undef DW_OP
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#undef DW_OP_DUP
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#undef DW_ATE
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#undef DW_ATE_DUP
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#undef DW_CFA
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/* Flag that tells whether entry has a child or not. */
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#define DW_children_no 0
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#define DW_children_yes 1
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#define DW_AT_stride_size DW_AT_bit_stride /* Note: The use of DW_AT_stride_size is deprecated. */
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#define DW_AT_stride DW_AT_byte_stride /* Note: The use of DW_AT_stride is deprecated. */
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/* Decimal sign encodings. */
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enum dwarf_decimal_sign_encoding
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{
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/* DWARF 3. */
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DW_DS_unsigned = 0x01,
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DW_DS_leading_overpunch = 0x02,
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DW_DS_trailing_overpunch = 0x03,
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DW_DS_leading_separate = 0x04,
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DW_DS_trailing_separate = 0x05
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};
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/* Endianity encodings. */
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enum dwarf_endianity_encoding
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{
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/* DWARF 3. */
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DW_END_default = 0x00,
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DW_END_big = 0x01,
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DW_END_little = 0x02,
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DW_END_lo_user = 0x40,
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DW_END_hi_user = 0xff
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};
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/* Array ordering names and codes. */
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enum dwarf_array_dim_ordering
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{
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DW_ORD_row_major = 0,
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DW_ORD_col_major = 1
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};
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/* Access attribute. */
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enum dwarf_access_attribute
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{
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DW_ACCESS_public = 1,
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DW_ACCESS_protected = 2,
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DW_ACCESS_private = 3
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};
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/* Visibility. */
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enum dwarf_visibility_attribute
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{
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DW_VIS_local = 1,
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DW_VIS_exported = 2,
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DW_VIS_qualified = 3
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};
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/* Virtuality. */
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enum dwarf_virtuality_attribute
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{
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DW_VIRTUALITY_none = 0,
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DW_VIRTUALITY_virtual = 1,
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DW_VIRTUALITY_pure_virtual = 2
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};
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/* Case sensitivity. */
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enum dwarf_id_case
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{
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DW_ID_case_sensitive = 0,
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DW_ID_up_case = 1,
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DW_ID_down_case = 2,
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DW_ID_case_insensitive = 3
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};
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/* Calling convention. */
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enum dwarf_calling_convention
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{
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DW_CC_normal = 0x1,
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DW_CC_program = 0x2,
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DW_CC_nocall = 0x3,
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DW_CC_lo_user = 0x40,
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DW_CC_hi_user = 0xff,
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DW_CC_GNU_renesas_sh = 0x40,
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DW_CC_GNU_borland_fastcall_i386 = 0x41,
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/* This DW_CC_ value is not currently generated by any toolchain. It is
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used internally to GDB to indicate OpenCL C functions that have been
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compiled with the IBM XL C for OpenCL compiler and use a non-platform
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calling convention for passing OpenCL C vector types. This value may
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be changed freely as long as it does not conflict with any other DW_CC_
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value defined here. */
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DW_CC_GDB_IBM_OpenCL = 0xff
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};
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/* Inline attribute. */
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enum dwarf_inline_attribute
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{
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DW_INL_not_inlined = 0,
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DW_INL_inlined = 1,
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DW_INL_declared_not_inlined = 2,
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DW_INL_declared_inlined = 3
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};
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/* Discriminant lists. */
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enum dwarf_discrim_list
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{
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DW_DSC_label = 0,
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DW_DSC_range = 1
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};
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/* Line number opcodes. */
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enum dwarf_line_number_ops
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{
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DW_LNS_extended_op = 0,
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DW_LNS_copy = 1,
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DW_LNS_advance_pc = 2,
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DW_LNS_advance_line = 3,
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DW_LNS_set_file = 4,
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DW_LNS_set_column = 5,
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DW_LNS_negate_stmt = 6,
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DW_LNS_set_basic_block = 7,
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DW_LNS_const_add_pc = 8,
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DW_LNS_fixed_advance_pc = 9,
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/* DWARF 3. */
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DW_LNS_set_prologue_end = 10,
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DW_LNS_set_epilogue_begin = 11,
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DW_LNS_set_isa = 12
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};
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/* Line number extended opcodes. */
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enum dwarf_line_number_x_ops
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{
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DW_LNE_end_sequence = 1,
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DW_LNE_set_address = 2,
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DW_LNE_define_file = 3,
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DW_LNE_set_discriminator = 4,
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/* HP extensions. */
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DW_LNE_HP_negate_is_UV_update = 0x11,
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DW_LNE_HP_push_context = 0x12,
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DW_LNE_HP_pop_context = 0x13,
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DW_LNE_HP_set_file_line_column = 0x14,
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DW_LNE_HP_set_routine_name = 0x15,
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DW_LNE_HP_set_sequence = 0x16,
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DW_LNE_HP_negate_post_semantics = 0x17,
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DW_LNE_HP_negate_function_exit = 0x18,
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DW_LNE_HP_negate_front_end_logical = 0x19,
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DW_LNE_HP_define_proc = 0x20,
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DW_LNE_HP_source_file_correlation = 0x80,
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DW_LNE_lo_user = 0x80,
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DW_LNE_hi_user = 0xff
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};
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/* Sub-opcodes for DW_LNE_HP_source_file_correlation. */
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enum dwarf_line_number_hp_sfc_ops
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{
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DW_LNE_HP_SFC_formfeed = 1,
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DW_LNE_HP_SFC_set_listing_line = 2,
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DW_LNE_HP_SFC_associate = 3
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};
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/* Type codes for location list entries.
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Extension for Fission. See http://gcc.gnu.org/wiki/DebugFission. */
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enum dwarf_location_list_entry_type
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{
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DW_LLE_GNU_end_of_list_entry = 0,
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DW_LLE_GNU_base_address_selection_entry = 1,
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DW_LLE_GNU_start_end_entry = 2,
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DW_LLE_GNU_start_length_entry = 3
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};
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#define DW_CIE_ID 0xffffffff
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#define DW64_CIE_ID 0xffffffffffffffffULL
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#define DW_CIE_VERSION 1
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#define DW_CFA_extended 0
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#define DW_CHILDREN_no 0x00
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#define DW_CHILDREN_yes 0x01
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#define DW_ADDR_none 0
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/* Source language names and codes. */
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enum dwarf_source_language
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{
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DW_LANG_C89 = 0x0001,
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DW_LANG_C = 0x0002,
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DW_LANG_Ada83 = 0x0003,
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DW_LANG_C_plus_plus = 0x0004,
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DW_LANG_Cobol74 = 0x0005,
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DW_LANG_Cobol85 = 0x0006,
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DW_LANG_Fortran77 = 0x0007,
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DW_LANG_Fortran90 = 0x0008,
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DW_LANG_Pascal83 = 0x0009,
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DW_LANG_Modula2 = 0x000a,
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/* DWARF 3. */
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DW_LANG_Java = 0x000b,
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DW_LANG_C99 = 0x000c,
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DW_LANG_Ada95 = 0x000d,
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DW_LANG_Fortran95 = 0x000e,
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DW_LANG_PLI = 0x000f,
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DW_LANG_ObjC = 0x0010,
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DW_LANG_ObjC_plus_plus = 0x0011,
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DW_LANG_UPC = 0x0012,
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DW_LANG_D = 0x0013,
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/* DWARF 4. */
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DW_LANG_Python = 0x0014,
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/* DWARF 5. */
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DW_LANG_Go = 0x0016,
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DW_LANG_lo_user = 0x8000, /* Implementation-defined range start. */
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DW_LANG_hi_user = 0xffff, /* Implementation-defined range start. */
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/* MIPS. */
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DW_LANG_Mips_Assembler = 0x8001,
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/* UPC. */
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DW_LANG_Upc = 0x8765,
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/* HP extensions. */
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DW_LANG_HP_Bliss = 0x8003,
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DW_LANG_HP_Basic91 = 0x8004,
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DW_LANG_HP_Pascal91 = 0x8005,
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DW_LANG_HP_IMacro = 0x8006,
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DW_LANG_HP_Assembler = 0x8007
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};
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/* Names and codes for macro information. */
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enum dwarf_macinfo_record_type
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{
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DW_MACINFO_define = 1,
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DW_MACINFO_undef = 2,
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DW_MACINFO_start_file = 3,
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DW_MACINFO_end_file = 4,
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DW_MACINFO_vendor_ext = 255
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};
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/* Names and codes for new style macro information. */
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enum dwarf_macro_record_type
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{
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DW_MACRO_GNU_define = 1,
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DW_MACRO_GNU_undef = 2,
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DW_MACRO_GNU_start_file = 3,
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DW_MACRO_GNU_end_file = 4,
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DW_MACRO_GNU_define_indirect = 5,
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DW_MACRO_GNU_undef_indirect = 6,
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DW_MACRO_GNU_transparent_include = 7,
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/* Extensions for DWZ multifile.
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See http://www.dwarfstd.org/ShowIssue.php?issue=120604.1&type=open . */
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DW_MACRO_GNU_define_indirect_alt = 8,
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DW_MACRO_GNU_undef_indirect_alt = 9,
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||
DW_MACRO_GNU_transparent_include_alt = 10,
|
||
DW_MACRO_GNU_lo_user = 0xe0,
|
||
DW_MACRO_GNU_hi_user = 0xff
|
||
};
|
||
|
||
/* @@@ For use with GNU frame unwind information. */
|
||
|
||
#define DW_EH_PE_absptr 0x00
|
||
#define DW_EH_PE_omit 0xff
|
||
|
||
#define DW_EH_PE_uleb128 0x01
|
||
#define DW_EH_PE_udata2 0x02
|
||
#define DW_EH_PE_udata4 0x03
|
||
#define DW_EH_PE_udata8 0x04
|
||
#define DW_EH_PE_sleb128 0x09
|
||
#define DW_EH_PE_sdata2 0x0A
|
||
#define DW_EH_PE_sdata4 0x0B
|
||
#define DW_EH_PE_sdata8 0x0C
|
||
#define DW_EH_PE_signed 0x08
|
||
|
||
#define DW_EH_PE_pcrel 0x10
|
||
#define DW_EH_PE_textrel 0x20
|
||
#define DW_EH_PE_datarel 0x30
|
||
#define DW_EH_PE_funcrel 0x40
|
||
#define DW_EH_PE_aligned 0x50
|
||
|
||
#define DW_EH_PE_indirect 0x80
|
||
|
||
|
||
#ifdef __cplusplus
|
||
extern "C" {
|
||
#endif /* __cplusplus */
|
||
|
||
/* Return the name of a DW_TAG_ constant, or NULL if the value is not
|
||
recognized. */
|
||
extern const char *get_DW_TAG_name (unsigned int tag);
|
||
|
||
/* Return the name of a DW_AT_ constant, or NULL if the value is not
|
||
recognized. */
|
||
extern const char *get_DW_AT_name (unsigned int attr);
|
||
|
||
/* Return the name of a DW_FORM_ constant, or NULL if the value is not
|
||
recognized. */
|
||
extern const char *get_DW_FORM_name (unsigned int form);
|
||
|
||
/* Return the name of a DW_OP_ constant, or NULL if the value is not
|
||
recognized. */
|
||
extern const char *get_DW_OP_name (unsigned int op);
|
||
|
||
/* Return the name of a DW_ATE_ constant, or NULL if the value is not
|
||
recognized. */
|
||
extern const char *get_DW_ATE_name (unsigned int enc);
|
||
|
||
/* Return the name of a DW_CFA_ constant, or NULL if the value is not
|
||
recognized. */
|
||
extern const char *get_DW_CFA_name (unsigned int opc);
|
||
|
||
#ifdef __cplusplus
|
||
}
|
||
#endif /* __cplusplus */
|
||
|
||
#endif /* _DWARF2_H */
|