[Bug symtab/26797] New: [readnow] Dwarf error result in no minimal symbols

["vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=26797

            Bug ID: 26797
           Summary: [readnow] Dwarf error result in no minimal symbols
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: symtab
          Assignee: unassigned at sourceware dot org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

Normally we have:
...
(gdb) file dw2-error^M
Reading symbols from dw2-error...^M
Dwarf Error: wrong version in compilation unit header (is 153, should be 2, 3,
4 or 5) [in module dw2-error]^M
(No debugging symbols found in dw2-error)^M
(gdb) PASS: gdb.dwarf2/dw2-error.exp: file dw2-error
break -q main^M
Breakpoint 1 at 0x4004ab^M
(gdb) PASS: gdb.dwarf2/dw2-error.exp: break -q main
...

But with with -readnow, we have instead:
...
(gdb) file dw2-error^M
Reading symbols from dw2-error...^M
Dwarf Error: wrong version in compilation unit header (is 153, should be 2, 3,
4 or 5) [in module dw2-error]^M
(gdb) PASS: gdb.dwarf2/dw2-error.exp: file dw2-error
break -q main^M
No symbol table is loaded.  Use the "file" command.^M
(gdb) FAIL: gdb.dwarf2/dw2-error.exp: break -q main
...

So, with -readnow, we somehow also end up without minimal symbols.

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