[Bug testsuite/30528] [gdb/testsuite] FAIL: gdb.dwarf2/per-bfd-sharing.exp: couldn't remove files in temporary cache dir

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

https://sourceware.org/bugzilla/show_bug.cgi?id=30528

--- Comment #3 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Tom de Vries <vries@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=743d3f0945c625ce5647130b506eeb6940dfc12e

commit 743d3f0945c625ce5647130b506eeb6940dfc12e
Author: Tom de Vries <tdevries@suse.de>
Date:   Thu Oct 26 10:34:24 2023 +0200

    [gdb/testsuite] Add wait-for-index-cache in gdb.dwarf2/per-bfd-sharing.exp

    If we make writing an index-cache entry very slow by doing this in
    index_cache::store:
    ...
       try
         {
    +      sleep (15);
           index_cache_debug ("writing index cache for objfile %s",
                             bfd_get_filename (per_bfd->obfd));
    ...
    we run into:
    ...
    FAIL: gdb.dwarf2/per-bfd-sharing.exp: \
      couldn't remove files in temporary cache dir
    ...

    The FAIL happens because there is no index-cache entry in the cache dir.

    The problem is that gdb is killed (by gdb_exit) before the index-cache
entry
    is written.

    Fix this by using "maint wait-for-index-cache".

    Tested on x86_64-linux.

    PR testsuite/30528
    Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=30528

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