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From: "vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug symtab/30841] New: [gdb, symtab] gdb-add-index doesn't support
 .gnu_debugaltlink
Date: Tue, 12 Sep 2023 09:41:54 +0000
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X-Bugzilla-Component: symtab
X-Bugzilla-Version: HEAD
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X-Bugzilla-Severity: enhancement
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D30841

            Bug ID: 30841
           Summary: [gdb, symtab] gdb-add-index doesn't support
                    .gnu_debugaltlink
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: symtab
          Assignee: unassigned at sourceware dot org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

Say we have an executable a.out, with a .gnu_debugaltlink to a dwz file a.d=
wz.

Adding a .gdb_index section to a.out also requires adding a minimal .gdb_in=
dex
section to a.dwz.

Our current implementation of gdb-add-index, based on the "save gdb-index"
command (which currently only generates a symbol-file.gdb-index) doesn't
support this.

Supporting this would involve:
- modifying "save gdb-index" to also generate a symbol-file.dwz-gdb-index,
  and
- modifying gdb-add-index to add that as a .gdb_section to the file pointed=
 to
  by the .gnu_debugaltlink.

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