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From: "vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug gdb/28004] DW_AT_ranges with form DW_FORM_sec_offset problem
Date: Fri, 25 Jun 2021 12:47:08 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D28004

--- Comment #2 from Tom de Vries <vries at gcc dot gnu.org> ---
The warning is caused by the fact that the addr map for the CU starts at 0,=
 due
to the DW_AT_entry_pc:
...
 <2><50bea>: Abbrev Number: 13 (DW_TAG_inlined_subroutine)
    <50beb>   DW_AT_abstract_origin: <0x50b99>
    <50bef>   DW_AT_entry_pc    : 0x0
    <50bf7>   DW_AT_GNU_entry_view: 0
    <50bf9>   DW_AT_ranges      : 0x3db4
    <50bfd>   DW_AT_call_file   : 1
    <50bfe>   DW_AT_call_line   : 64
    <50bff>   DW_AT_call_column : 9
    <50c00>   DW_AT_sibling     : <0x50c26>
...

Or, likewise, DW_AT_ranges:
...
0x00003db4: [DW_RLE_base_address]:  0x0000000000000000
0x00003dbd: [DW_RLE_offset_pair ]:  0x0000000000000000, 0x0000000000000007 =
=3D>
[0x0000000000000000, 0x0000000000000007)
0x00003dc0: [DW_RLE_offset_pair ]:  0x000000000000000b, 0x0000000000000018 =
=3D>
[0x000000000000000b, 0x0000000000000018)
0x00003dc3: [DW_RLE_end_of_list ]
...

Perhaps this is https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99654 .

--=20
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