[Bug symtab/31363] New: Remove support for .gdb_index

[Bug symtab/31363] New: Remove support for .gdb_index

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=31363

            Bug ID: 31363
           Summary: Remove support for .gdb_index
           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: ---

Now that the .debug_names writer has been rewritten,
I think we should plan to remove .gdb_index.

While .debug_names has some drawbacks (reuse of the
string table means more data to download when just
the index is desired), it is also better documented
and integrates better with the new DWARF scanner.

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[Bug symtab/31363] Remove support for .gdb_index

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=31363

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/31363] Remove support for .gdb_index

[fche at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=31363

Frank Ch. Eigler <fche at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fche at redhat dot com

--- Comment #1 from Frank Ch. Eigler <fche at redhat dot com> ---
What about preexisting binaries that have .gdb_index built into them but no
.debug_names?

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[Bug symtab/31363] Remove support for .gdb_index

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=31363

--- Comment #2 from Tom Tromey <tromey at sourceware dot org> ---
(In reply to Frank Ch. Eigler from comment #1)
> What about preexisting binaries that have .gdb_index built into them but no
> .debug_names?

We don't have to delete the reader immediately.

Worth noting here that .gdb_index won't easily work with lazy CU
expansion, if we end up implementing that.

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