[Bug symtab/27453] New: [meta] DWARF 5 support

[Bug symtab/27453] New: [meta] DWARF 5 support

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453

            Bug ID: 27453
           Summary: [meta] DWARF 5 support
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: symtab
          Assignee: unassigned at sourceware dot org
          Reporter: tromey at sourceware dot org
  Target Milestone: ---

Meta bug for DWARF 5 support.

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[Bug symtab/27453] [meta] DWARF 5 support

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends on|                            |23504


Referenced Bugs:

https://sourceware.org/bugzilla/show_bug.cgi?id=23504
[Bug 23504] index cache: Produce and consume DWARF5 format
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[Bug symtab/27453] [meta] DWARF 5 support

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends on|                            |24820


Referenced Bugs:

https://sourceware.org/bugzilla/show_bug.cgi?id=24820
[Bug 24820] .debug_names has incorrect contents
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[Bug symtab/27453] [meta] DWARF 5 support

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends on|                            |27354


Referenced Bugs:

https://sourceware.org/bugzilla/show_bug.cgi?id=27354
[Bug 27354] Dwarf Error: wrong unit_type in compilation unit header (is
DW_UT_split_compile (0x05), should be DW_UT_type (0x02)
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[Bug symtab/27453] [meta] DWARF 5 support

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends on|                            |27388


Referenced Bugs:

https://sourceware.org/bugzilla/show_bug.cgi?id=27388
[Bug 27388] [gdb, dwarf5] Support DW_TAG_generic_subrange
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[Bug symtab/27453] [meta] DWARF 5 support

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends on|                            |27336


Referenced Bugs:

https://sourceware.org/bugzilla/show_bug.cgi?id=27336
[Bug 27336] [dwarf-5] abort on info addr in gdb.cp/temargs.exp
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[Bug symtab/27453] [meta] DWARF 5 support

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453
Bug 27453 depends on bug 27336, which changed state.

Bug 27336 Summary: [dwarf-5] abort on info addr in gdb.cp/temargs.exp
https://sourceware.org/bugzilla/show_bug.cgi?id=27336

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

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[Bug symtab/27453] [meta] DWARF 5 support

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453
Bug 27453 depends on bug 27354, which changed state.

Bug 27354 Summary: Dwarf Error: wrong unit_type in compilation unit header (is DW_UT_split_compile (0x05), should be DW_UT_type (0x02)
https://sourceware.org/bugzilla/show_bug.cgi?id=27354

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

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[Bug symtab/27453] [meta] DWARF 5 support

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453
Bug 27453 depends on bug 27388, which changed state.

Bug 27388 Summary: [gdb, dwarf5] Support DW_TAG_generic_subrange
https://sourceware.org/bugzilla/show_bug.cgi?id=27388

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

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[Bug symtab/27453] [meta] DWARF 5 support

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends on|                            |27966


Referenced Bugs:

https://sourceware.org/bugzilla/show_bug.cgi?id=27966
[Bug 27966] macro tests failing when using -gdwarf-5 -gsplit-dwarf
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[Bug symtab/27453] [meta] DWARF 5 support

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends on|                            |27930


Referenced Bugs:

https://sourceware.org/bugzilla/show_bug.cgi?id=27930
[Bug 27930] gdb index does not handle DWARF 5 type units
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[Bug symtab/27453] [meta] DWARF 5 support

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends on|                            |17701


Referenced Bugs:

https://sourceware.org/bugzilla/show_bug.cgi?id=17701
[Bug 17701] gdb.base/consecutive.exp fails when the line table includes column
information
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[Bug symtab/27453] [meta] DWARF 5 support

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453
Bug 27453 depends on bug 24820, which changed state.

Bug 24820 Summary: .debug_names has incorrect contents
https://sourceware.org/bugzilla/show_bug.cgi?id=24820

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

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[Bug symtab/27453] [meta] DWARF 5 support

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends on|                            |31361


Referenced Bugs:

https://sourceware.org/bugzilla/show_bug.cgi?id=31361
[Bug 31361] .debug_names uses wrong form for DW_IDX_die_offset
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[Bug symtab/27453] [meta] DWARF 5 support

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453
Bug 27453 depends on bug 31361, which changed state.

Bug 31361 Summary: .debug_names uses wrong form for DW_IDX_die_offset
https://sourceware.org/bugzilla/show_bug.cgi?id=31361

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

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[Bug symtab/27453] [meta] DWARF 5 support

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453

--- Comment #1 from Tom Tromey <tromey at sourceware dot org> ---
I noticed that gdb doesn't support DW_FORM_ref_sup*.
But that probably isn't really needed unless someone
is updating dwz to DWARF 5, see bug#24726.

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[Bug symtab/27453] [meta] DWARF 5 support

[mark at klomp dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453

Mark Wielaard <mark at klomp dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mark at klomp dot org

--- Comment #2 from Mark Wielaard <mark at klomp dot org> ---
(In reply to Tom Tromey from comment #1)
> I noticed that gdb doesn't support DW_FORM_ref_sup*.
> But that probably isn't really needed unless someone
> is updating dwz to DWARF 5, see bug#24726.

Do note that bug#27440 was resolved by:

commit 4e55da9f7700dda5936c7a486651674dbc782a7e
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Sat Feb 20 10:47:53 2021 +0100

    PR27440 - add --dwarf-5 support

    This adds --dwarf-5 support, so that dwz can emit standard DWARF 5
    Supplementary object files with .debug_sup section and debug info referring
    to those with .debug_sup section instead of .gnu.debugaltlink and standard
    DWARF 5 DW_FORM_*sup instead of the DW_FORM_GNU_*alt forms.

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[Bug symtab/27453] [meta] DWARF 5 support

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453

--- Comment #3 from Tom Tromey <tromey at sourceware dot org> ---
(In reply to Mark Wielaard from comment #2)
> (In reply to Tom Tromey from comment #1)
> > I noticed that gdb doesn't support DW_FORM_ref_sup*.
> > But that probably isn't really needed unless someone
> > is updating dwz to DWARF 5, see bug#24726.
> 
> Do note that bug#27440 was resolved by:

Hahaha I even sent a patch in 2021:
https://sourceware.org/pipermail/gdb-patches/2021-February/176508.html

I'll see about updating that.
Though there's a whole thread, so maybe there's some reason I dropped it.

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[Bug symtab/27453] [meta] DWARF 5 support

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends on|                            |32808


Referenced Bugs:

https://sourceware.org/bugzilla/show_bug.cgi?id=32808
[Bug 32808] Handle DW_FORM_ref_sup*
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[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453

--- Comment #4 from Tom Tromey <tromey at sourceware dot org> ---
I filed bug#32808 to track the form thing.

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[Bug symtab/27453] [meta] DWARF 5 support

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453
Bug 27453 depends on bug 32808, which changed state.

Bug 32808 Summary: Handle DW_FORM_ref_sup*
https://sourceware.org/bugzilla/show_bug.cgi?id=32808

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

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[Bug symtab/27453] [meta] DWARF 5 support

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=27453

Tom Tromey <tromey at sourceware dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Depends on|                            |28127


Referenced Bugs:

https://sourceware.org/bugzilla/show_bug.cgi?id=28127
[Bug 28127] DW_FORM_data16 support
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