[Bug tools/23247] Segfault in 0.171 RC1 release candidate

[mliska at suse dot cz]

https://sourceware.org/bugzilla/show_bug.cgi?id=23247

--- Comment #3 from Martin Liska <mliska at suse dot cz> ---
(In reply to Mark Wielaard from comment #1)
> Thanks, for some reason we used the wrong listptr for locview attributes.
> This fixes it:
> 
> diff --git a/src/readelf.c b/src/readelf.c
> index 2ccbea5..6f2f637 100644
> --- a/src/readelf.c
> +++ b/src/readelf.c
> @@ -9244,7 +9244,7 @@ print_debug_loc_section (Dwfl_Module *dwflmod,
>  
>        if (attr == DW_AT_GNU_locviews)
>         {
> -         Dwarf_Off next_off = next_listptr_offset (&known_loclistsptr,
> +         Dwarf_Off next_off = next_listptr_offset (&known_locsptr,
>                                                     listptr_idx);
>           const unsigned char *locp = readp;
>           const unsigned char *locendp;
> 
> While looking at this I also noticed that for this test file eu-readelf
> --debug-dump=ranges claims to find some unused garbage in .debug_ranges,
> which might indicate that we are either missing some attributes in the
> associated CU, or GCC really puts garbage in the .debug_ranges section
> (which would surprise me).

I can confirm it works for me! Thanks.

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