[PATCH v3 00/11] Windows non-stop mode

[Pedro Alves <pedro@palves.net>]

Here is the third iteration of the Windows non-stop work.

I've pushed the series to the users/palves/windows-non-stop-v3 branch
on sourceware.org, for your convenience.

Compared to the previous version, here:

 https://inbox.sourceware.org/gdb-patches/20250519132308.3553663-1-pedro@palves.net

... this one is much smaller, as most of the preparatory changes have
been merged already.  For the patches that still remain, not much has
changed, other than rebasing and resolving conflicts, and addressing a
couple minor review comments.

I've added "Approved-By:" tags from last year's review.

Here's the original intro blurb, still accurate:

This series adds non-stop mode support to the Windows native backend,
on Windows 10 and above.  Earlier Windows versions lack the necessary
feature, so those keep working in all-stop mode, only.

After the series, the Windows target backend defaults to working in
non-stop mode (as in, "maint set target-non-stop"), even if
user-visible mode is all-stop ("set non-stop off").  This is the same
as the Linux backend.

I've been testing this on Cygwin native with the GDB testsuite as I've
been developing this.  Running the testsuite on Cygwin is a pain, and
many testcases run into cascading timeouts still, and some even hang
the test run forever until you kill them manually.  I've got another
series of patches to improve such tests and skip others, and that's
what I've been testing with.  I've also tested the series with the
windows-nat backend forced to all-stop mode.

Pedro Alves (11):
  Windows gdb+gdbserver: Check whether DBG_REPLY_LATER is available
  linux-nat: Factor out get_detach_signal code to common code
  Windows GDB: make windows_thread_info be private thread_info data
  Introduce windows_nat::event_code_to_string
  Windows gdb: Add non-stop support
  Windows gdb: Watchpoints while running (internal vs external stops)
  Windows gdb: extra thread info => show exiting
  Add gdb.threads/leader-exit-schedlock.exp
  infrun: with AS+NS, prefer process exit over thread exit
  Windows gdb: Always non-stop (default to "maint set target-non-stop
    on")
  Mention Windows non-stop support in NEWS

 gdb/NEWS                                      |    3 +
 gdb/aarch64-windows-nat.c                     |   13 +-
 gdb/infrun.c                                  |  246 +++-
 gdb/infrun.h                                  |    6 +
 gdb/linux-nat.c                               |   41 +-
 gdb/nat/windows-nat.c                         |   62 +-
 gdb/nat/windows-nat.h                         |   83 +-
 gdb/target/waitstatus.h                       |    4 +-
 .../gdb.threads/leader-exit-schedlock.c       |   56 +
 .../gdb.threads/leader-exit-schedlock.exp     |  215 +++
 .../gdb.threads/step-over-process-exit.c      |   49 +
 .../gdb.threads/step-over-process-exit.exp    |   66 +
 gdb/windows-nat.c                             | 1285 ++++++++++++++---
 gdb/windows-nat.h                             |  142 +-
 gdb/x86-windows-nat.c                         |   16 +-
 gdbserver/win32-low.cc                        |   60 +-
 gdbserver/win32-low.h                         |    4 +-
 17 files changed, 1973 insertions(+), 378 deletions(-)
 create mode 100644 gdb/testsuite/gdb.threads/leader-exit-schedlock.c
 create mode 100644 gdb/testsuite/gdb.threads/leader-exit-schedlock.exp
 create mode 100644 gdb/testsuite/gdb.threads/step-over-process-exit.c
 create mode 100644 gdb/testsuite/gdb.threads/step-over-process-exit.exp


base-commit: 5ed455efd8476ce4f70266d5797ef9f3eb1e8919
-- 
2.53.0