[PATCH v2 0/9] Some fixes for handling vfork by multi-threaded programs
Simon Marchi
simon.marchi@polymtl.ca
Tue Jan 18 04:09:28 GMT 2022
This is v2 of:
https://sourceware.org/pipermail/gdb-patches/2022-January/185204.html
The two changes are:
- New patch 8: patch 7 fixes a bug gdbserver-side, which is good, but
it then uncovers a small bug in gdb. Patch 8 fixes it.
- Patch 8/8 in v1 (now 9/9) had a bug that broke some tests that detach
the fork parent.
Simon Marchi (9):
gdb/infrun: add reason parameter to stop_all_threads
gdb/linux-nat: remove check based on current_inferior in
linux_handle_extended_wait
gdb: replace inferior::waiting_for_vfork_done with
inferior::thread_waiting_for_vfork_done
gdb/infrun: add inferior parameters to stop_all_threads and
restart_threads
gdb/infrun: add logging statement to do_target_resume
gdb: fix handling of vfork by multi-threaded program
(follow-fork-mode=parent, detach-on-fork=on)
gdbserver: report correct status in thread stop race condition
gdb/remote: remove_new_fork_children don't access
target_waitstatus::child_ptid if kind ==
TARGET_WAITKIND_THREAD_EXITED
gdb: resume ongoing step after handling fork or vfork
gdb/infcmd.c | 2 +-
gdb/inferior.h | 8 +-
gdb/infrun.c | 212 ++++++++++++++++--
gdb/infrun.h | 14 +-
gdb/linux-nat.c | 17 +-
gdb/remote.c | 7 +-
.../gdb.threads/next-fork-other-thread.c | 86 +++++++
.../gdb.threads/next-fork-other-thread.exp | 116 ++++++++++
.../gdb.threads/vfork-multi-inferior-sleep.c | 25 +++
.../gdb.threads/vfork-multi-inferior.c | 55 +++++
.../gdb.threads/vfork-multi-inferior.exp | 115 ++++++++++
.../gdb.threads/vfork-multi-thread.c | 74 ++++++
.../gdb.threads/vfork-multi-thread.exp | 96 ++++++++
gdbserver/linux-low.cc | 60 +++--
14 files changed, 806 insertions(+), 81 deletions(-)
create mode 100644 gdb/testsuite/gdb.threads/next-fork-other-thread.c
create mode 100644 gdb/testsuite/gdb.threads/next-fork-other-thread.exp
create mode 100644 gdb/testsuite/gdb.threads/vfork-multi-inferior-sleep.c
create mode 100644 gdb/testsuite/gdb.threads/vfork-multi-inferior.c
create mode 100644 gdb/testsuite/gdb.threads/vfork-multi-inferior.exp
create mode 100644 gdb/testsuite/gdb.threads/vfork-multi-thread.c
create mode 100644 gdb/testsuite/gdb.threads/vfork-multi-thread.exp
base-commit: e2c0149e8b0ce12accb8f4b02cbbeff3e91e4737
--
2.34.1
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