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We call 'thread apply all bt full' in case there are interesting
things going on in other threads, but often there are no other threads
and it only serves to repeat the original trace (and very slowly, for
some reason).
The $_inferior_thread_count convenience variable is new in gdb 13.1
(2022-ish) so we init-if-undefined it to default to the old behaviour.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If a program happens to have 'PyList_New' defined but is not a python
script, gdb will print
> Undefined command: "py-bt". Try "help".
and probably stop. This happens after the C backtraces have been
printed, so nothing is lost.
The traceback is printed twice -- once in conventional Python style
for clarity, and once with extra "full" information.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
See 18 or so lines up.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Jun 10 01:17:52 UTC 2021 on sn-devel-184
Sometime you know a test is going to crash and produce a LOT of
backtrace, and you already know what it will look like. For those
times you can set
PLEASE_NO_GDB_BACKTRACE=1
and there will be no backtrace, which can save quite a bit of time and
thousands of lines of log file. (In particular, backtraces of Python
programs can take over a minute to complete).
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: David Mulder <dmulder@suse.com>
We may have bugs in socket_wrapper and others, we don't want
to inject these bugs into the debugger.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Modern versions of gdb are better than us at working out what binary
is running, and so it is more reliable to omit the binary argument.
This change is required because samba4 no longer supplies this
argument.
Andrew Bartlett
Following Tridge's advice, we need to have no input (/dev/null) and
-batch for reliable opeation on big backtraces.
We should also use --pid, and let gdb find the binary
Andrew Bartlett
