This adds an event that is emitted just before GDB presents a prompt
to the user. This provides Python code a way to react to whatever
changes might have been made by the previous command. For example, in
my GUI I use this to track changes to the selected frame and reflect
them in the UI.
Built and regtested on x86-64 Fedora 23.
gdb/ChangeLog
2017-02-14 Tom Tromey <tom@tromey.com>
PR python/13598:
* python/python.c (gdbpy_before_prompt_hook): Emit before_prompt
event.
* python/py-evts.c (gdbpy_initialize_py_events): Add
before_prompt registry.
* python/py-events.h (events_object) <before_prompt>: New field.
gdb/doc/ChangeLog
2017-02-14 Tom Tromey <tom@tromey.com>
PR python/13598:
* python.texi (Events In Python): Document events.before_prompt.
gdb/testsuite/ChangeLog
2017-02-14 Tom Tromey <tom@tromey.com>
PR python/13598:
* gdb.python/py-events.exp: Add before_prompt event tests.
With my debug build of Python (--with-pydebug), many tests fails because
of the same issue. Python scripts are loaded by the tests using this
pattern:
(gdb) python exec (open ('file.py').read ())
This causes Python to output this warning:
__main__:1: ResourceWarning: unclosed file <_io.TextIOWrapper name='file.py' mode='r' encoding='ANSI_X3.4-1968'>
and the test to fail because of that extra output. Instead of using the
open + read + exec trick which leaks the file and causes the warning,
why not just source the files?
(gdb) source file.py
This patch changes this, and standardizes the test names of the tests I
touched to "load python file" (some of them were empty, others were
overly complicated).
gdb/testsuite/ChangeLog:
* gdb.python/py-bad-printers.exp: Load python file using "source".
* gdb.python/py-events.exp: Likewise.
* gdb.python/py-evsignal.exp: Likewise.
* gdb.python/py-evthreads.exp: Likewise.
* gdb.python/py-frame-args.exp: Likewise.
* gdb.python/py-framefilter-invalidarg.exp: Likewise.
* gdb.python/py-framefilter-mi.exp: Likewise.
* gdb.python/py-framefilter.exp: Likewise.
* gdb.python/py-mi.exp: Likewise.
* gdb.python/py-pp-maint.exp: Likewise.
* gdb.python/py-pp-registration.exp: Likewise.
* gdb.python/py-prettyprint.exp: Likewise.
(run_lang_tests): Likewise.
* gdb.python/py-typeprint.exp: Likewise.
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.
gdb/ChangeLog:
Update copyright year range in all GDB files.
I have patches that:
1 - make the CLI print stop info from a normal_stop observer, like MI
does.
2 - happen to change the order in which the Python and CLI/TUI
normal_stop observers are installed.
With those in place, py-events.exp regresses like shown below [1],
because the Python stop events are output before CLI prints stop info,
instead of after, and the test doesn't expect that.
With the same Python hooks, the order in which MI and Python events is
emited today is already undefined, because MI also uses the
normal_stop observer for output. I see no reason that we should in
general define the order observers, interpreters and scripting
languages get their turn at being notified of these events. So this
patch makes the test cope with Python->CLI output order too.
Tested on x86_64 Fedora 20.
gdb/testsuite/
2015-07-24 Pedro Alves <palves@redhat.com>
* gdb.python/py-events.exp: Accept output between the stop event
and the prompt.
* gdb.python/py-evsignal.exp: Likewise.
* gdb.python/py-evthreads.exp: Likewise.
[1] - The regressions in question look like:
Before said patches:
(gdb) continue
Continuing.
event type: continue
Breakpoint 2, first () at /home/pedro/gdb/mygit/build/../src/gdb/testsuite/gdb.python/py-events.c:30
30 for (i = 0; i < 2; i++)
event type: stop
event type: stop
stop reason: breakpoint
first breakpoint number: 2
breakpoint number: 2
breakpoint number: 3
all threads stopped
(gdb) PASS: gdb.python/py-events.exp: continue
After said patches:
(gdb) continue
Continuing.
event type: continue
event type: stop
event type: stop
stop reason: breakpoint
first breakpoint number: 2
breakpoint number: 2
breakpoint number: 3
all threads stopped
Breakpoint 2, first () at /home/pedro/gdb/mygit/build/../src/gdb/testsuite/gdb.python/py-events.c:30
30 for (i = 0; i < 2; i++)
(gdb) FAIL: gdb.python/py-events.exp: continue
If one is watching new_objfile events in python, it helps to know
when the list of objfiles is cleared. This patch adds a new
clear_objfiles event to support this.
This patch is all just cut-n-paste-n-tweak derived from
the new_objfiles event.
gdb/ChangeLog:
* NEWS: Mention new event gdb.clear_objfiles.
* python/py-event.h (emit_clear_objfiles_event): Clear
* python/py-events.h (events_object): New member clear_objfiles.
* python/py-evts.c (gdbpy_initialize_py_events): Add clear_objfiles
event.
* python/py-inferior.c (python_new_objfile): If objfile is NULL,
emit clear_objfiles event.
* python/py-newobjfileevent.c (create_clear_objfiles_event_object): New
function.
(emit_clear_objfiles_event): New function.
(clear_objfiles): New event.
* python/python-internal.h (gdbpy_initialize_clear_objfiles_event):
Declare.
* python/python.c (_initialize_python): Call
gdbpy_initialize_clear_objfiles_event.
gdb/doc/ChangeLog:
* python.texi (Events In Python): Document clear_objfiles event.
gdb/testsuite/ChangeLog:
* gdb.python/py-events.exp: Update expected output for clear_objfiles
event.
* gdb.python/py-events.py: Add clear_objfiles event.
Two modifications:
1. The addition of 2013 to the copyright year range for every file;
2. The use of a single year range, instead of potentially multiple
year ranges, as approved by the FSF.
* gdb.base/charset.exp: Change print syntax for Python 3
compatibility.
* gdb.python/py-block.exp: Ditto.
* gdb.python/py-breakpoint.exp: Ditto.
* gdb.python/py-cmd.exp: Ditto.
* gdb.python/py-events.py: Ditto.
* gdb.python/py-finish-breakpoint.py: Ditto.
* gdb.python/py-finish-breakpoint2.exp: Ditto.
* gdb.python/py-finish-breakpoint2.py: Ditto.
* gdb.python/py-frame-inline.exp: Ditto.
* gdb.python/py-frame.exp: Ditto.
* gdb.python/py-infthread.exp: Ditto.
* gdb.python/py-objfile.exp: Ditto.
* gdb.python/py-parameter.exp: Ditto.
* gdb.python/py-progspace.exp: Ditto.
* gdb.python/py-prompt.exp: Ditto.
* gdb.python/py-symbol.exp: Ditto.
* gdb.python/py-symtab.exp: Ditto.
* gdb.python/py-template.exp: Ditto.
* gdb.python/py-value-cc.exp: Ditto.
* gdb.python/python.exp: Ditto.
* gdb.python/source2.py: Ditto.
* gdb.python/lib-types.exp: Change print syntax for Python 3
compatibility.
Use sorted() function rather than sort() method.
Accept either int or long values for enum values.
* gdb.python/py-events.exp: Use exec(open(...).read()) instead of
execfile for Python 3 compatibility.
* gdb.python/py-evsignal.exp: Ditto.
* gdb.python/py-evthreads.exp: Ditto.
* gdb.python/py-mi.exp: Ditto.
* gdb.python/py-pp-maint.exp: Ditto.
* gdb.python/py-prettyprint.exp: Ditto.
* gdb.python/py-finish-breakpoint.exp: Change print syntax for
Python 3 compatibility.
Skip tests for Python 2.4.
* gdb.python/py-inferior.exp: Change print syntax for
Python 3 compatibility.
Use byte string rather than character string in memory write test
if Python 3.
* gdb.python/py-pp-maint.py: Change class declarations to "new
class" syntax.
* gdb.python/py-prettyprint.py: Change iterator class to generator
function for Python 3 compatibility.
Make all classes "new style".
Fix indentation issue and stray semicolon.
* gdb.python/py-shared.expChange print syntax for Python 3
compatibility.
Define "long" if Python 3.
* gdb.python/py-type.exp: Change print syntax for Python 3
compatibility.
Accept either int or long values for enum values.
* gdb.python/py-value.exp: Change print syntax for Python 3
compatibility.
Skip "long" and "unicode" tests if Python 3.
Accept either "type" or "class" in type checks.
* lib/gdb.exp (gdb_py_is_py3k): New flag set if Python 3.
(gdb_py_is_py24): New flag set if Python 2.4 or 2.5.
prepare_for_testing.
* gdb.python/py-block.exp: Use standard_testfile.
* gdb.python/py-breakpoint.exp: Use standard_testfile.
* gdb.python/py-events.exp: Use standard_testfile,
standard_output_file.
* gdb.python/py-evsignal.exp: Use standard_testfile.
* gdb.python/py-evethreads.exp: Use standard_testfile.
* gdb.python/py-explore-cc.exp: Use standard_testfile.
* gdb.python/py-explore.exp: Use standard_testfile.
* gdb.python/py-finish-breakpoint.exp: Use standard_testfile,
standard_output_file.
* gdb.python/py-finish-breakpoint2.exp: Use standard_testfile,
prepare_for_testing.
* gdb.python/py-frame-inline.exp: Use standard_testfile.
* gdb.python/py-frame.exp: Use standard_testfile.
* gdb.python/py-inferior.exp: Use standard_testfile.
* gdb.python/py-infthread.exp: Use standard_testfile.
* gdb.python/py-mi.exp: Use standard_testfile.
* gdb.python/py-objfile-script.exp: Use standard_testfile,
build_executable.
* gdb.python/py-objfile.exp: Use standard_testfile.
* gdb.python/py-pp-maint.exp: Use standard_testfile,
prepare_for_testing.
* gdb.python/py-prettyprint.exp: Use standard_testfile.
* gdb.python/py-progspace.exp: Use standard_testfile,
build_executable.
* gdb.python/py-prompt.exp: Use standard_testfile,
build_executable.
* gdb.python/py-section-script.exp: Use standard_testfile,
build_executable.
* gdb.python/py-shared.exp: Use standard_testfile,
standard_output_file, clean_restart.
* gdb.python/py-symbol.exp: Use standard_output_file,
prepare_for_testing.
* gdb.python/py-symtab.exp: Use standard_output_file,
prepare_for_testing
* gdb.python/py-template.exp: Use standard_testfile.
* gdb.python/py-type.exp: Use standard_testfile.
* gdb.python/py-value-cc.exp: Use standard_testfile.
* gdb.python/py-value.exp: Use standard_testfile.
* gdb.python/python.exp: Use standard_testfile, build_executable.
* python/py-event.c (event_object_getset): New global.
(event_object_type): Reference it.
* python/py-type.c (field_object_getset): New global.
(field_object_type): Reference it.
* python/python-internal.h (gdb_py_generic_dict): Declare.
* python/py-utils.c (gdb_py_generic_dict): New function.
testsuite/gdb
* gdb.python/py-events.py (exit_handler): Add test for 'dir'.
* gdb.python/py-events.exp: Check 'dir' output.
* gdb.python/py-type.exp (test_fields): Add test for 'dir'.
* infrun.c (normal_stop): Don't skip calling the normal_stop
observers if the thread was doing a multi-step, but stopped for
some reason other than stepping.
gdb/testsuite/
2012-01-05 Pedro Alves <alves.ped@gmail.com>
* gdb.mi/mi-stepn.c, gdb.mi/mi-stepn.exp: New files.
* gdb.python/py-events.c (first): Add bits for new "step N" test.
* gdb.python/py-events.exp: Test that "step N" tripping on a
breakpoint emits a breakpoint event.
* gdb.base/async-shell.exp: Skip the testfile for use_gdb_stub.
* gdb.base/attach-pie-misread.exp: Likewise.
* gdb.base/break-interp.exp: Likewise.
* gdb.base/default.exp (attach, run "r" abbreviation, run): Skip these
testcases for use_gdb_stub.
* gdb.dwarf2/dw2-restore.exp: Fix the run for use_gdb_stub.
(continue): New testcase.
* gdb.python/py-events.exp: Skip the testfile for use_gdb_stub.
* gdb.threads/attach-into-signal.exp: Likewise.
* gdb.threads/attach-stopped.exp: Likewise.
* gdb.threads/attachstop-mt.exp: Likewise.
PR python/12691: Add the inferior to Python exited event
* python/py-exitedevent.c (create_exited_event_object): Add inferior
to exited_event.
* python/py-event.h (emit_exited_event): Likewise
* python/-inferior.c (python_inferior_exit): Likewise
2011-10-04 Kevin Pouget <kevin.pouget@st.com>
PR python/12691: Add the inferior to Python exited event
* gdb.python/py-events.exp: Test the inferior attribute of exited
event with a fork.
* gdb.python/py-events.py: Print inferior number on exit.
* gdb.python/py-events.c: Fork the inferior.
2011-10-04 Kevin Pouget <kevin.pouget@st.com>
PR python/12691: Add the inferior to Python exited event
* gdb.texinfo (Events In Python): Describe exited inferior attribute.
Handle multiple breakpoint hits in Python interface:
* python/py-bpevent.c (create_breakpoint_event_object): Rename C/Python
variable to breakpoints.
* python/py-stopevent.c (emit_stop_event): Return a Python tuple of
bps instead of single breakpoint. Fix some space typos.
* python/py-stopevent.c (create_breakpoint_event_object): Rename
variable to breakpoints.
testsuite:
* gdb.python/py-events.exp: Set a duplicate breakpoint and check its
presence.
* gdb.python/py-events.py (breakpoint_stop_handler): Browse all the
breakpoint hits.
doc:
* gdb.texinfo (Events In Python): New function documentation:
gdb.BreakpointEvent.breakpoints. Indicate that
gdb.BreakpointEvent.breakpoint is now deprecated.
* gdb.python/py-events.exp: Remove pretty printing comment.
* gdb.python/py-evsignal.exp: New file.
* gdb.python/py-evthreads.c: Include signal.h.
(thread3): Remove variable count3. Remove variable bad and use raise
instead.
(thread2): Remove variable count2. Move thread3 pthread_create here,
merge pthread_join to a single line.
(main): Remove variable count1. Merge pthread_join with pthread_create
to a single line.
* gdb.python/py-evthreads.exp: Remove pretty printing comment. New
KFAIL python/12966 for gdbserver. Test return value of
gdb_compile_pthreads. Use gdb_run_cmd. Replace send_gdb and
gdb_expect by gdb_test and gdb_test_multiple.
(thread 2, thread 3): New tests.
