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Re: OpenBSD 7.4-current port and test produces an Abort trap at callback_bad with 'callback_args string'
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From: Matti V. <mav...@gm...> - 2023-12-09 10:47:01
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Maybe the following is helpful:
(gdb) bt
#0 thrkill () at /tmp/-:2
#1 0xf7a555255abd010d in ?? ()
#2 0x000000d3e7980c52 in _libc_abort () at
/usr/src/lib/libc/stdlib/abort.c:51
#3 0x000000d4b9c3ce70 in uw_init_context_1 (
context=<error reading variable: dwarf2_find_location_expression:
Corrupted DWARF expression.>, context@entry=0x794f944a9560,
outer_cfa=<error reading variable: dwarf2_find_location_expression:
Corrupted DWARF expression.>, outer_cfa@entry=0x794f944a9910,
outer_ra=<error reading variable: dwarf2_find_location_expression:
Corrupted DWARF expression.>) at
/usr/obj/ports/gcc-11.2.0/gcc-11.2.0/libgcc/unwind-pe.h:88
#4 0x000000d4b9c3c5d9 in _Unwind_RaiseException (exc=0xd3f70264c0)
at /usr/obj/ports/gcc-11.2.0/gcc-11.2.0/libgcc/unwind.inc:93
#5 0x000000d4b9b25414 in __cxxabiv1::__cxa_throw (obj=<optimized out>,
tinfo=0xd3f5aaa770 <typeinfo for Py::ValueError>,
dest=0xd3f5a9a6e2 <Py::ValueError::~ValueError()>)
at
/usr/obj/ports/gcc-11.2.0/gcc-11.2.0/libstdc++-v3/libsupc++/eh_throw.cc:90
#6 0x000000d3f5a9a73d in Py::ValueError::throwFunc ()
at ./CXX/Python3/cxx_standard_exceptions.hxx:74
#7 0x000000d3f5a98426 in Py::ifPyErrorThrowCxxException ()
at Src/Python3/cxx_exceptions.cxx:41
#8 0x000000d3f5a80e1c in Py::Callable::apply (this=0x794f944a9a40,
args=...)
at ./CXX/Python3/Objects.hxx:3241
#9 0x000000d3f5a842c8 in simple_module::func_with_callback
(this=0xd45b2ef460,
args=...) at Demo/Python3/simple.cxx:351
#10 0x000000d3f5a8b513 in
Py::ExtensionModule<simple_module>::invoke_method_keyword (
this=0xd45b2ef460, method_def=0xd410e7b420, args=..., keywords=...)
at ./CXX/Python3/ExtensionModule.hxx:192
#11 0x000000d3f5a9524d in Py::method_keyword_call_handler (Python Exception
<class 'gdb.error'> There is no member named ob_item.:
_self_and_name_tuple=, Python Exception <class 'gdb.error'> There is no
member named ob_item.:
_args=, _keywords=0x0) at Src/Python3/cxx_extensions.cxx:1695
#12 0x000000d41f076d1c in cfunction_call () from
/usr/local/lib/libpython3.10.so.0.0
#13 0x000000d41f01cc75 in _PyObject_MakeTpCall ()
from /usr/local/lib/libpython3.10.so.0.0
#14 0x000000d41f129e60 in call_function () from
/usr/local/lib/libpython3.10.so.0.0
#15 0x000000d41f1206c0 in _PyEval_EvalFrameDefault ()
from /usr/local/lib/libpython3.10.so.0.0
#16 0x000000d41f11d4e4 in _PyEval_Vector () from
/usr/local/lib/libpython3.10.so.0.0
#17 0x000000d41f185527 in run_mod () from
/usr/local/lib/libpython3.10.so.0.0
#18 0x000000d41f185e0c in PyRun_InteractiveOneObjectEx ()
from /usr/local/lib/libpython3.10.so.0.0
#19 0x000000d41f1848be in _PyRun_InteractiveLoopObject ()
from /usr/local/lib/libpython3.10.so.0.0
#20 0x000000d41f183dfb in _PyRun_AnyFileObject ()
from /usr/local/lib/libpython3.10.so.0.0
#21 0x000000d41f187d2d in PyRun_AnyFileExFlags ()
from /usr/local/lib/libpython3.10.so.0.0
#22 0x000000d41f1ac960 in Py_RunMain () from
/usr/local/lib/libpython3.10.so.0.0
#23 0x000000d41f1adc33 in pymain_main () from
/usr/local/lib/libpython3.10.so.0.0
#24 0x000000d41f1ae02c in Py_BytesMain () from
/usr/local/lib/libpython3.10.so.0.0
#25 0x000000d1cd9a4971 in _start ()
On Sat, Dec 9, 2023 at 2:35 PM Matti Viljamaa <mav...@gm...>
wrote:
> PYTHONPATH=obj egdb python3
> GNU gdb (GDB) 9.2
> Copyright (C) 2020 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <
> http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.
> Type "show copying" and "show warranty" for details.
> This GDB was configured as "x86_64-unknown-openbsd7.4".
> Type "show configuration" for configuration details.
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>.
> Find the GDB manual and other documentation resources online at:
> <http://www.gnu.org/software/gdb/documentation/>.
>
> For help, type "help".
> Type "apropos word" to search for commands related to "word"...
> Reading symbols from python3...
> (No debugging symbols found in python3)
> (gdb) import simple
> Undefined command: "import". Try "help".
> (gdb) run
> Starting program: /usr/local/bin/python3
> Python 3.10.13 (main, Dec 5 2023, 18:39:12) [Clang 16.0.6 ] on openbsd7
> Type "help", "copyright", "credits" or "license" for more information.
> >>> import simple
> warning: File "/usr/local/lib/libestdc++.so.20.0-gdb.py" auto-loading has
> been declined by your `auto-load safe-path' set to
> "/usr/local/share/gdb/auto-load".
> To enable execution of this file add
> add-auto-load-safe-path /usr/local/lib/libestdc++.so.20.0-gdb.py
> line to your configuration file "/root/.gdbinit".
> To completely disable this security protection add
> set auto-load safe-path /
> line to your configuration file "/root/.gdbinit".
> For more information about this security protection see the
> "Auto-loading safe path" section in the GDB manual. E.g., run from the
> shell:
> info "(gdb)Auto-loading safe path"
> sizeof(int) 4
> sizeof(long) 8
> sizeof(Py_hash_t) 8
> sizeof(Py_ssize_t) 8
> >>> def callback_bad( arg ):
> ... raise ValueError( 'callback_bad error' )
> ...
> >>> simple.func_with_callback( callback_bad, 'fred' )
>
> Program received signal SIGABRT, Aborted.
> thrkill () at /tmp/-:2
> 2 /tmp/-: No such file or directory.
> (gdb) Quit
> (gdb)
>
> ---
>
> Now what?
>
> On Tue, Dec 5, 2023 at 1:46 PM Barry Scott <ba...@ba...> wrote:
>
>>
>> On 29/11/2023 13:02, Matti Viljamaa wrote:
>>
>> On a closer inspection it seems related to the line:
>>
>> simple.func_with_callback( callback_bad, 'fred' )
>>
>> because replacing that with a direct call:
>>
>> call_back('fred')
>>
>> works as expected:
>>
>> ...
>> TEST: call C++ with Python callback_good
>> callback_good with 'callback_args string'
>> PASS callback_good returned 'good result'
>> TEST: call C++ with Python callback_bad
>> callback_bad with 'fred'
>> PASS callback_bad: error callback_bad error
>> TEST: call C++ with Python callback_raise_simple_error
>> callback_bad with 'callback_args string'
>> Abort trap (core dumped)
>>
>> Is there some problem with raising exceptions with the
>> simple.func_with_callback?
>>
>> However, I also think there might be a problem with:
>>
>> TEST: call C++ with Python callback_good
>> callback_good with 'callback_args string'
>> PASS callback_good returned 'good result'
>>
>> because I think it shouldn't show 'callback_args string'
>>
>> On Wed, Nov 29, 2023 at 1:15 PM Matti Viljamaa <mav...@gm...>
>> wrote:
>>
>>> I am attempting to build pycxx-7.1.8 for OpenBSD 7.4-current.
>>>
>>> I am following the Unix installation guide at:
>>>
>>> https://cxx.sourceforge.net/
>>>
>>> The final line:
>>>
>>> make -f linux.mak clean test
>>>
>>> or
>>>
>>> gmake -f linux.mak clean test
>>>
>>> in OpenBSD
>>>
>>> fails to
>>>
>>> ...
>>> TEST: call C++ with Python callback_bad
>>> callback_bad with 'callback_args string'
>>> Abort trap (core dumped)
>>> gmake: *** [linux.mak:86: test] Error 134
>>>
>>> Upon inspecting test_simple.py I've noticed that it seems to be linked
>>> to raising ValueError, because commenting out line 31:
>>>
>>> raise ValueError( 'callback_bad error' )
>>>
>>> in test_simple.py makes test_simple.py progress to the next test. Now I
>>> see:
>>>
>>> ...
>>> TEST: call C++ with Python callback_bad
>>> callback_bad with 'callback_args string'
>>> FAILED callback_bad None
>>> TEST: call C++ with Python callback_raise_simple_error
>>> callback_bad with 'callback_args string'
>>> Abort trap (core dumped)
>>>
>>> However, since the Abort traps continue showing, I speculate that this
>>> is about something more. Possible reasons:
>>>
>>> * pycxx-7.1.8 is not compatible with Python 3.10 (or a particular
>>> subversion)
>>> * something is different in OpenBSD compared to Linux
>>>
>>> Any ideas?
>>>
>> This is how to run the failing test on its own to debug it:
>> : 11:44:26 worthy ~/Projects/pycxx-trunk
>> : [1] barry $ PYTHONPATH=obj gdb python3.10
>> GNU gdb (Fedora Linux) 13.2-11.fc39
>> Copyright (C) 2023 Free Software Foundation, Inc.
>> License GPLv3+: GNU GPL version 3 or later
>> <http://gnu.org/licenses/gpl.html> <http://gnu.org/licenses/gpl.html>
>> This is free software: you are free to change and redistribute it.
>> There is NO WARRANTY, to the extent permitted by law.
>> Type "show copying" and "show warranty" for details.
>> This GDB was configured as "x86_64-redhat-linux-gnu".
>> Type "show configuration" for configuration details.
>> For bug reporting instructions, please see:
>> <https://www.gnu.org/software/gdb/bugs/>
>> <https://www.gnu.org/software/gdb/bugs/>.
>> Find the GDB manual and other documentation resources online at:
>> <http://www.gnu.org/software/gdb/documentation/>
>> <http://www.gnu.org/software/gdb/documentation/>.
>>
>> For help, type "help".
>> Type "apropos word" to search for commands related to "word"...
>> Reading symbols from python3.10...
>> Reading symbols from
>> /home/barry/.cache/debuginfod_client/5ba318aef33a2277a4c3e2fef48addf050553288/debuginfo...
>>
>> (gdb) import
>> simple
>>
>> Undefined command: "import". Try "help".
>> (gdb) run
>> Starting program: /usr/bin/python3.10
>> [Thread debugging using libthread_db
>> enabled]
>>
>> Using host libthread_db library "/lib64/libthread_db.so.1".
>> Python 3.10.13 (main, Aug 28 2023, 00:00:00) [GCC 13.2.1 20230728 (Red
>> Hat 13.2.1-1)] on
>> linux
>>
>> Type "help", "copyright", "credits" or "license" for more information.
>> >>> import
>> simple
>>
>> sizeof(int)
>> 4
>>
>> sizeof(long) 8
>> sizeof(Py_hash_t) 8
>> sizeof(Py_ssize_t) 8
>> >>> def callback_bad( arg ):
>> ... raise ValueError( 'callback_bad error' )
>> ...
>> >>> simple.func_with_callback( callback_bad, 'fred' )
>> Traceback (most recent call last):
>> File "<stdin>", line 1, in <module>
>> File "<stdin>", line 2, in callback_bad
>> ValueError: callback_bad error
>> >>>
>>
>>
>> _______________________________________________
>> CXX-Users mailing lis...@li...://lists.sourceforge.net/lists/listinfo/cxx-users
>>
>> _______________________________________________
>> CXX-Users mailing list
>> CXX...@li...
>> https://lists.sourceforge.net/lists/listinfo/cxx-users
>>
>
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