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From: "tromey at sourceware dot org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug symtab/31427] New: DWARF expression evaluation misconception
Date: Wed, 28 Feb 2024 15:56:23 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D31427

            Bug ID: 31427
           Summary: DWARF expression evaluation misconception
           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: ---

This comes from:

https://lists.dwarfstd.org/pipermail/dwarf-discuss/2024-February/002375.html
https://dwarfstd.org/issues/181205.1.html

gdb should reset the DWARF expression stack after a piece operation.
Apparently nobody noticed this text in 2.6.1 "Single Location Descriptions":

Each simple location description that is a DWARF expression is
evaluated independently of any others.

Also an empty first piece is ok.

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