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Support for location and range lists for split-dwarf and dwarf-5.

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Adding support for location and range lists for split-dwarf and dwarf-5.
Following issues are taken care.
1. Display of the index values for DW_FORM_loclistx and DW_FORM_rnglistx.
2. Display of .debug_loclists.dwo and .debug_rnglists.dwo sections.

        * dwarf.c(read_and_display_attr_value): Handle DW_FORM_loclistx
        and DW_FORM_rnglistx for .dwo files.
        (process_debug_info): Load .debug_loclists.dwo and
        .debug_rnglists.dwo if exists.
        (load_separate_debug_files): Load .debug_loclists and
        .debug_rnglists if exists.
        Include 2 entries in debug_displays table.
        * dwarf.h (enum dwarf_section_display_enum): Include 2 entries.
This commit is contained in:
Bhuvanendra Kumar N
2022-07-05 16:53:45 +05:30
committed by Alok Kumar Sharma
parent c368d2a802
commit 4694a0e5fe
2 changed files with 34 additions and 9 deletions
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41
binutils/dwarf.c
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@ -2744,10 +2744,17 @@ read_and_display_attr_value (unsigned long attribute,
if (!do_loc)
{
dwarf_vma base, index;
const char *suffix = strrchr (section->name, '.');
bool dwo = suffix && strcmp (suffix, ".dwo") == 0;
if (form == DW_FORM_loclistx)
{
if (debug_info_p == NULL)
if (dwo)
{
index = fetch_indexed_value (uvalue, loclists_dwo, 0);
index += (offset_size == 8) ? 20 : 12;
}
else if (debug_info_p == NULL)
{
index = fetch_indexed_value (uvalue, loclists, 0);
}
@ -2763,14 +2770,22 @@ read_and_display_attr_value (unsigned long attribute,
}
else if (form == DW_FORM_rnglistx)
{
if (debug_info_p == NULL)
base = 0;
if (dwo)
{
index = fetch_indexed_value (uvalue, rnglists_dwo, 0);
index += (offset_size == 8) ? 20 : 12;
}
else
base = debug_info_p->rnglists_base;
/* We do not have a cached value this time, so we perform the
computation manually. */
index = fetch_indexed_value (uvalue, rnglists, base);
index += base;
{
if (debug_info_p == NULL)
base = 0;
else
base = debug_info_p->rnglists_base;
/* We do not have a cached value this time, so we perform the
computation manually. */
index = fetch_indexed_value (uvalue, rnglists, base);
index += base;
}
}
else
{
@ -3623,7 +3638,9 @@ process_debug_info (struct dwarf_section * section,
load_debug_section_with_follow (abbrev_sec, file);
load_debug_section_with_follow (loclists, file);
load_debug_section_with_follow (rnglists, file);
load_debug_section_with_follow (loclists_dwo, file);
load_debug_section_with_follow (rnglists_dwo, file);
if (debug_displays [abbrev_sec].section.start == NULL)
{
warn (_("Unable to locate %s section!\n"),
@ -11959,6 +11976,10 @@ load_separate_debug_files (void * file, const char * filename)
load_debug_section (debug_addr, file);
/* Load the .debug_str_offsets section, if it exists. */
load_debug_section (str_index, file);
/* Load the .debug_loclists section, if it exists. */
load_debug_section (loclists, file);
/* Load the .debug_rnglists section, if it exists. */
load_debug_section (rnglists, file);
free_dwo_info ();
@ -12292,10 +12313,12 @@ struct dwarf_section_display debug_displays[] =
{ { ".debug_line_str", ".zdebug_line_str", "", NO_ABBREVS }, display_debug_str, &do_debug_str, false },
{ { ".debug_loc", ".zdebug_loc", ".dwloc", NO_ABBREVS }, display_debug_loc, &do_debug_loc, true },
{ { ".debug_loclists", ".zdebug_loclists", "", NO_ABBREVS }, display_debug_loc, &do_debug_loc, true },
{ { ".debug_loclists.dwo", ".zdebug_loclists.dwo", "", NO_ABBREVS }, display_debug_loc, &do_debug_loc, true },
{ { ".debug_pubtypes", ".zdebug_pubtypes", ".dwpbtyp", NO_ABBREVS }, display_debug_pubnames, &do_debug_pubtypes, false },
{ { ".debug_gnu_pubtypes", ".zdebug_gnu_pubtypes", "", NO_ABBREVS }, display_debug_gnu_pubnames, &do_debug_pubtypes, false },
{ { ".debug_ranges", ".zdebug_ranges", ".dwrnges", NO_ABBREVS }, display_debug_ranges, &do_debug_ranges, true },
{ { ".debug_rnglists", ".zdebug_rnglists", "", NO_ABBREVS }, display_debug_ranges, &do_debug_ranges, true },
{ { ".debug_rnglists.dwo", ".zdebug_rnglists.dwo", "", NO_ABBREVS }, display_debug_ranges, &do_debug_ranges, true },
{ { ".debug_static_func", ".zdebug_static_func", "", NO_ABBREVS }, display_debug_not_supported, NULL, false },
{ { ".debug_static_vars", ".zdebug_static_vars", "", NO_ABBREVS }, display_debug_not_supported, NULL, false },
{ { ".debug_types", ".zdebug_types", "", ABBREV (abbrev) }, display_debug_types, &do_debug_info, true },