[pushed 0/4] [gdb/symtab] Fix more index-cache data races

[Tom de Vries <tdevries@suse.de>]

PR symtab/30718 reports two more data races when using the index-cache.

This series contains:
- two fixes, one for each data race,
- a test-case patch that addresses a problem that made it difficult to
  reproduce the data races in the gdb.base/index-cache.exp test-case, and
- a test-case patch that adds the regression test for this PR.

Because the fixes are similar to the recently committed patches:
- [gdb/symtab] Fix data race on
  dwarf2_per_cu_data::{m_header_read_in,is_debug_type}
- [gdb/symtab] Fix race on dwarf2_per_cu_data::{queued,is_debug_type}
I consider them obvious.

Tested on x86_64-linux.

Tom de Vries (4):
  [gdb/symtab] Fix data race on
    dwarf2_per_cu_data::{mark,is_debug_types}
  [gdb/symtab] Fix data race on
    dwarf2_per_cu_data::{files_read,is_debug_types}
  [gdb/testsuite] Move "maint wait-for-index-cache" ALAP in
    gdb.base/index-cache.exp
  [gdb/testsuite] Extend gdb.base/index-cache.exp further

 gdb/dwarf2/read.h                      | 20 ++++++------
 gdb/testsuite/gdb.base/index-cache.exp | 45 +++++++++++++++-----------
 2 files changed, 37 insertions(+), 28 deletions(-)


base-commit: b44293099e215d6558a8d91b5eaab137218d2e27
-- 
2.35.3