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binutils-gdb/include/dwarf2.h
Alexandre Oliva 9f27220911 LVU: dump loclists with locviews 
When dumping location lists, also dump locview lists that may be
interspersed with them, and bring view pairs next to the corresponding
location list entries.

This patch supports DW_AT_GNU_locviews as a separate attribute for
DWARF4- loc_lists and split (dwo) loclists, as well as DWARF5
loclists.

It also supports, in DWARF5 loclists, the proposed
DW_LLE_GNU_view_pair loclist entry type proposed for DWARF6.


The tests use 32-bit DWARF, even on 64-bit targets, resolving offsets
to constants so as to reduce the risk that relocations be created for
them, or that the offsets be rejected as nonconstants.


The patch also adds an xfail to an unrelated test, namely dw5, so that
no unexpected fails remain on nds32*-elf, one of the tested targets.


Reviewed-by: Alan Modra <amodra@gmail.com>


for  include/ChangeLog

	* dwarf2.def (DW_AT_GNU_locviews): New.
	* dwarf2.h (enum dwarf_location_list_entry_type): Add
	DW_LLE_GNU_view_pair.
	(DW_LLE_view_pair): Define.

for  binutils/ChangeLog

	* dwarf.h (debug_info): Add loc_views and num_loc_views.
	* dwarf.c (vm1): New constant.
	(print_dwarf_view): New function.
	(read_and_display_attr_value): Support DW_AT_GNU_locviews.
	(process_debug_info): Keep num_loc_offsets and num_loc_views
	in sync.
	(display_view_pair_list): New function.
	(display_loc_list_dwo): Take vstart_ptr; update it.  Dump
	location view pairs before the range they apply to, when a
	viewlist augments the loc list.
	(display_loc_list): Likewise.  Check view numbers in range
	tests.
	(display_loclists_list): Likewise.  Handle view pair entries,
	and warn on trailing ones.
	(loc_views): New variable.
	(loc_offsets_compar): Compare loc_views if loc_offsets are the
	same.
	(display_debug_loc): Check and sort loc_views too.  Accept
	loc_view as expected_start.  Skip if lists and views are the
	same.  Dump locview list separately in order, and pass the
	locview list base to each list dump function.  Warn and skip
	overlap and hole checking if we find loclists and locviews to
	not be adjacent.
	* testsuite/binutils-all/locview-1.s: New.
	* testsuite/binutils-all/readelf.locview-1: New.
	* testsuite/binutils-all/locview-2.s: New.
	* testsuite/binutils-all/readelf.locview-2: New.
	* testsuite/binutils-all/readelf.exp: Run new tests.  Fix
	option spelling in pr18374 fail message.  XFAIL dw5 test on
	nds32*-elf.
2017-09-22 17:05:51 -03:00

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/* Declarations and definitions of codes relating to the DWARF2 and
DWARF3 symbolic debugging information formats.
Copyright (C) 1992-2017 Free Software Foundation, Inc.
Written by Gary Funck (gary@intrepid.com) The Ada Joint Program
Office (AJPO), Florida State University and Silicon Graphics Inc.
provided support for this effort -- June 21, 1995.
Derived from the DWARF 1 implementation written by Ron Guilmette
(rfg@netcom.com), November 1990.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC 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 General Public
License for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
/* This file is derived from the DWARF specification (a public document)
Revision 2.0.0 (July 27, 1993) developed by the UNIX International
Programming Languages Special Interest Group (UI/PLSIG) and distributed
by UNIX International. Copies of this specification are available from
UNIX International, 20 Waterview Boulevard, Parsippany, NJ, 07054.
This file also now contains definitions from the DWARF 3 specification
published Dec 20, 2005, available from: http://dwarf.freestandards.org. */
#ifndef _DWARF2_H
#define _DWARF2_H
#define DW_TAG(name, value) , name = value
#define DW_TAG_DUP(name, value) , name = value
#define DW_FORM(name, value) , name = value
#define DW_AT(name, value) , name = value
#define DW_AT_DUP(name, value) , name = value
#define DW_OP(name, value) , name = value
#define DW_OP_DUP(name, value) , name = value
#define DW_ATE(name, value) , name = value
#define DW_ATE_DUP(name, value) , name = value
#define DW_CFA(name, value) , name = value
#define DW_CFA_DUP(name, value) , name = value
#define DW_IDX(name, value) , name = value
#define DW_IDX_DUP(name, value) , name = value
#define DW_FIRST_TAG(name, value) enum dwarf_tag { \
name = value
#define DW_END_TAG };
#define DW_FIRST_FORM(name, value) enum dwarf_form { \
name = value
#define DW_END_FORM };
#define DW_FIRST_AT(name, value) enum dwarf_attribute { \
name = value
#define DW_END_AT };
#define DW_FIRST_OP(name, value) enum dwarf_location_atom { \
name = value
#define DW_END_OP };
#define DW_FIRST_ATE(name, value) enum dwarf_type { \
name = value
#define DW_END_ATE };
#define DW_FIRST_CFA(name, value) enum dwarf_call_frame_info { \
name = value
#define DW_END_CFA };
#define DW_FIRST_IDX(name, value) enum dwarf_name_index_attribute { \
name = value
#define DW_END_IDX };
#include "dwarf2.def"
#undef DW_FIRST_TAG
#undef DW_END_TAG
#undef DW_FIRST_FORM
#undef DW_END_FORM
#undef DW_FIRST_AT
#undef DW_END_AT
#undef DW_FIRST_OP
#undef DW_END_OP
#undef DW_FIRST_ATE
#undef DW_END_ATE
#undef DW_FIRST_CFA
#undef DW_END_CFA
#undef DW_FIRST_IDX
#undef DW_END_IDX
#undef DW_TAG
#undef DW_TAG_DUP
#undef DW_FORM
#undef DW_AT
#undef DW_AT_DUP
#undef DW_OP
#undef DW_OP_DUP
#undef DW_ATE
#undef DW_ATE_DUP
#undef DW_CFA
#undef DW_CFA_DUP
#undef DW_IDX
#undef DW_IDX_DUP
/* Flag that tells whether entry has a child or not. */
#define DW_children_no 0
#define DW_children_yes 1
#define DW_AT_stride_size DW_AT_bit_stride /* Note: The use of DW_AT_stride_size is deprecated. */
#define DW_AT_stride DW_AT_byte_stride /* Note: The use of DW_AT_stride is deprecated. */
/* Decimal sign encodings. */
enum dwarf_decimal_sign_encoding
{
/* DWARF 3. */
DW_DS_unsigned = 0x01,
DW_DS_leading_overpunch = 0x02,
DW_DS_trailing_overpunch = 0x03,
DW_DS_leading_separate = 0x04,
DW_DS_trailing_separate = 0x05
};
/* Endianity encodings. */
enum dwarf_endianity_encoding
{
/* DWARF 3. */
DW_END_default = 0x00,
DW_END_big = 0x01,
DW_END_little = 0x02,
DW_END_lo_user = 0x40,
DW_END_hi_user = 0xff
};
/* Array ordering names and codes. */
enum dwarf_array_dim_ordering
{
DW_ORD_row_major = 0,
DW_ORD_col_major = 1
};
/* Access attribute. */
enum dwarf_access_attribute
{
DW_ACCESS_public = 1,
DW_ACCESS_protected = 2,
DW_ACCESS_private = 3
};
/* Visibility. */
enum dwarf_visibility_attribute
{
DW_VIS_local = 1,
DW_VIS_exported = 2,
DW_VIS_qualified = 3
};
/* Virtuality. */
enum dwarf_virtuality_attribute
{
DW_VIRTUALITY_none = 0,
DW_VIRTUALITY_virtual = 1,
DW_VIRTUALITY_pure_virtual = 2
};
/* Case sensitivity. */
enum dwarf_id_case
{
DW_ID_case_sensitive = 0,
DW_ID_up_case = 1,
DW_ID_down_case = 2,
DW_ID_case_insensitive = 3
};
/* Calling convention. */
enum dwarf_calling_convention
{
DW_CC_normal = 0x1,
DW_CC_program = 0x2,
DW_CC_nocall = 0x3,
/* DWARF 5. */
DW_CC_pass_by_reference = 0x4,
DW_CC_pass_by_value = 0x5,
DW_CC_lo_user = 0x40,
DW_CC_hi_user = 0xff,
DW_CC_GNU_renesas_sh = 0x40,
DW_CC_GNU_borland_fastcall_i386 = 0x41,
/* This DW_CC_ value is not currently generated by any toolchain. It is
used internally to GDB to indicate OpenCL C functions that have been
compiled with the IBM XL C for OpenCL compiler and use a non-platform
calling convention for passing OpenCL C vector types. This value may
be changed freely as long as it does not conflict with any other DW_CC_
value defined here. */
DW_CC_GDB_IBM_OpenCL = 0xff
};
/* Inline attribute. */
enum dwarf_inline_attribute
{
DW_INL_not_inlined = 0,
DW_INL_inlined = 1,
DW_INL_declared_not_inlined = 2,
DW_INL_declared_inlined = 3
};
/* Discriminant lists. */
enum dwarf_discrim_list
{
DW_DSC_label = 0,
DW_DSC_range = 1
};
/* Line number opcodes. */
enum dwarf_line_number_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,
/* DWARF 3. */
DW_LNS_set_prologue_end = 10,
DW_LNS_set_epilogue_begin = 11,
DW_LNS_set_isa = 12
};
/* Line number extended opcodes. */
enum dwarf_line_number_x_ops
{
DW_LNE_end_sequence = 1,
DW_LNE_set_address = 2,
DW_LNE_define_file = 3,
DW_LNE_set_discriminator = 4,
/* 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_HP_source_file_correlation = 0x80,
DW_LNE_lo_user = 0x80,
DW_LNE_hi_user = 0xff
};
/* Sub-opcodes for DW_LNE_HP_source_file_correlation. */
enum dwarf_line_number_hp_sfc_ops
{
DW_LNE_HP_SFC_formfeed = 1,
DW_LNE_HP_SFC_set_listing_line = 2,
DW_LNE_HP_SFC_associate = 3
};
/* Content type codes in line table directory_entry_format
and file_name_entry_format sequences. */
enum dwarf_line_number_content_type
{
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
};
/* Type codes for location list entries. */
enum dwarf_location_list_entry_type
{
DW_LLE_end_of_list = 0x00,
DW_LLE_base_addressx = 0x01,
DW_LLE_startx_endx = 0x02,
DW_LLE_startx_length = 0x03,
DW_LLE_offset_pair = 0x04,
DW_LLE_default_location = 0x05,
DW_LLE_base_address = 0x06,
DW_LLE_start_end = 0x07,
DW_LLE_start_length = 0x08,
/* <http://lists.dwarfstd.org/private.cgi/dwarf-discuss-dwarfstd.org/2017-April/004347.html>
has the proposal for now; only available to list members.
A (possibly updated) copy of the proposal is available at
<http://people.redhat.com/aoliva/papers/sfn/dwarf6-sfn-lvu.txt>. */
DW_LLE_GNU_view_pair = 0x09,
#define DW_LLE_view_pair DW_LLE_GNU_view_pair
/* Former extension for Fission.
See http://gcc.gnu.org/wiki/DebugFission. */
DW_LLE_GNU_end_of_list_entry = 0x00,
DW_LLE_GNU_base_address_selection_entry = 0x01,
DW_LLE_GNU_start_end_entry = 0x02,
DW_LLE_GNU_start_length_entry = 0x03
};
#define DW_CIE_ID 0xffffffff
#define DW64_CIE_ID 0xffffffffffffffffULL
#define DW_CIE_VERSION 1
#define DW_CFA_extended 0
#define DW_CHILDREN_no 0x00
#define DW_CHILDREN_yes 0x01
#define DW_ADDR_none 0
/* Source language names and codes. */
enum dwarf_source_language
{
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_OpenCL = 0x0015,
DW_LANG_Go = 0x0016,
DW_LANG_Modula3 = 0x0017,
DW_LANG_Haskell = 0x0018,
DW_LANG_C_plus_plus_03 = 0x0019,
DW_LANG_C_plus_plus_11 = 0x001a,
DW_LANG_OCaml = 0x001b,
DW_LANG_Rust = 0x001c,
DW_LANG_C11 = 0x001d,
DW_LANG_Swift = 0x001e,
DW_LANG_Julia = 0x001f,
DW_LANG_Dylan = 0x0020,
DW_LANG_C_plus_plus_14 = 0x0021,
DW_LANG_Fortran03 = 0x0022,
DW_LANG_Fortran08 = 0x0023,
DW_LANG_RenderScript = 0x0024,
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,
/* Rust extension, but replaced in DWARF 5. */
DW_LANG_Rust_old = 0x9000
};
/* Names and codes for macro information. */
enum dwarf_macinfo_record_type
{
DW_MACINFO_define = 1,
DW_MACINFO_undef = 2,
DW_MACINFO_start_file = 3,
DW_MACINFO_end_file = 4,
DW_MACINFO_vendor_ext = 255
};
/* DW_TAG_defaulted/DW_TAG_GNU_defaulted attributes. */
enum dwarf_defaulted_attribute
{
DW_DEFAULTED_no = 0x00,
DW_DEFAULTED_in_class = 0x01,
DW_DEFAULTED_out_of_class = 0x02
};
/* Names and codes for new style macro information. */
enum dwarf_macro_record_type
{
DW_MACRO_define = 0x01,
DW_MACRO_undef = 0x02,
DW_MACRO_start_file = 0x03,
DW_MACRO_end_file = 0x04,
DW_MACRO_define_strp = 0x05,
DW_MACRO_undef_strp = 0x06,
DW_MACRO_import = 0x07,
DW_MACRO_define_sup = 0x08,
DW_MACRO_undef_sup = 0x09,
DW_MACRO_import_sup = 0x0a,
DW_MACRO_define_strx = 0x0b,
DW_MACRO_undef_strx = 0x0c,
DW_MACRO_lo_user = 0xe0,
DW_MACRO_hi_user = 0xff,
/* Compatibility macros for the GNU .debug_macro extension. */
DW_MACRO_GNU_define = 0x01,
DW_MACRO_GNU_undef = 0x02,
DW_MACRO_GNU_start_file = 0x03,
DW_MACRO_GNU_end_file = 0x04,
DW_MACRO_GNU_define_indirect = 0x05,
DW_MACRO_GNU_undef_indirect = 0x06,
DW_MACRO_GNU_transparent_include = 0x07,
/* Extensions for DWZ multifile.
See http://www.dwarfstd.org/ShowIssue.php?issue=120604.1&type=open . */
DW_MACRO_GNU_define_indirect_alt = 0x08,
DW_MACRO_GNU_undef_indirect_alt = 0x09,
DW_MACRO_GNU_transparent_include_alt = 0x0a,
DW_MACRO_GNU_lo_user = 0xe0,
DW_MACRO_GNU_hi_user = 0xff
};
/* Range list entry kinds in .debug_rnglists* section. */
enum dwarf_range_list_entry
{
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
};
/* Unit types in unit_type unit header field. */
enum dwarf_unit_type
{
DW_UT_compile = 0x01,
DW_UT_type = 0x02,
DW_UT_partial = 0x03,
DW_UT_skeleton = 0x04,
DW_UT_split_compile = 0x05,
DW_UT_split_type = 0x06,
DW_UT_lo_user = 0x80,
DW_UT_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
/* Codes for the debug sections in a dwarf package (.dwp) file.
Extensions for Fission. See http://gcc.gnu.org/wiki/DebugFissionDWP. */
enum dwarf_sect
{
DW_SECT_INFO = 1,
DW_SECT_TYPES = 2,
DW_SECT_ABBREV = 3,
DW_SECT_LINE = 4,
DW_SECT_LOC = 5,
DW_SECT_STR_OFFSETS = 6,
DW_SECT_MACINFO = 7,
DW_SECT_MACRO = 8,
DW_SECT_MAX = 8
};
#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);
/* Return the name of a DW_IDX_ constant, or NULL if the value is not
recognized. */
extern const char *get_DW_IDX_name (unsigned int idx);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _DWARF2_H */
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