Allow Python notification of new object-file loadings.
* Makefile.in (SUBDIR_PYTHON_SRCS): Add py-newobjfilevent.c. (SUBDIR_PYTHON_OBS): Add py-newobjfileevent.o. Add build rule for this file. * python/py-event.h (emit_new_objfile_event): New prototype. (newobjfile): New Python event emitter. * python/py-evts.c (gdbpy_initialize_py_events): Add new_objfile to Python event registry. * python/py-inferior.c: Include objfiles.h (python_new_objfile): New function. (gdbpy_initialize_inferior): Add python_new_objfile to the new objfile observers. * python/py-newobjfileevent.c: New file. * python-internal.h (gdbpy_initialize_new_objfile_event): New prototype. * python/python.c (_initialize_python): Add gdbpy_initialize_new_objfile_event call. * NEWS: Add item for new Python event "gdb.newobjfile" 2011-10-06 Kevin Pouget <kevin.pouget@st.com> Allow Python notification of new object-file loadings. * gdb.texinfo (Events In Python): Document `gdb.NewObjFileEvent' event type. 2011-10-06 Kevin Pouget <kevin.pouget@st.com> Allow Python notification of new object-file loadings. * gdb.python/py-events.exp: Test newobjfile event. * gdb.python/py-events.py: Register newobjfile callback. * gdb.python/py-events.c: Add call to shared library * gdb.python/py-events-shlib.c: New file.
This commit is contained in:
Kevin Pouget
parent
8031b6f821
commit
20c168b519
13 changed files with 127 additions and 5 deletions
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@ -1,3 +1,38 @@
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2011-10-07 Kevin Pouget <kevin.pouget@st.com>
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Allow Python notification of new object-file loadings.
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* Makefile.in (SUBDIR_PYTHON_SRCS): Add py-newobjfilevent.c.
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(SUBDIR_PYTHON_OBS): Add py-newobjfileevent.o.
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Add build rule for this file.
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* python/py-event.h (emit_new_objfile_event): New prototype.
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(newobjfile): New Python event emitter.
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* python/py-evts.c (gdbpy_initialize_py_events): Add new_objfile to
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Python event registry.
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* python/py-inferior.c: Include objfiles.h
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(python_new_objfile): New function.
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(gdbpy_initialize_inferior): Add python_new_objfile to the new objfile
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observers.
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* python/py-newobjfileevent.c: New file.
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* python-internal.h (gdbpy_initialize_new_objfile_event): New
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prototype.
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* python/python.c (_initialize_python): Add
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gdbpy_initialize_new_objfile_event call.
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* NEWS: Add item for new Python event "gdb.newobjfile"
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2011-10-07 Kevin Pouget <kevin.pouget@st.com>
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Allow Python notification of new object-file loadings.
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* gdb.texinfo (Events In Python): Document `gdb.NewObjFileEvent'
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event type.
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2011-10-07 Kevin Pouget <kevin.pouget@st.com>
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Allow Python notification of new object-file loadings.
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* gdb.python/py-events.exp: Test newobjfile event.
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* gdb.python/py-events.py: Register newobjfile callback.
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* gdb.python/py-events.c: Add call to shared library
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* gdb.python/py-events-shlib.c: New file.
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2011-10-05 Tristan Gingold <gingold@adacore.com>
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* ada-tasks.c (read_atcb): Make ravenscar_task_name static.
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@ -289,6 +289,7 @@ SUBDIR_PYTHON_OBS = \
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py-inferior.o \
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py-infthread.o \
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py-lazy-string.o \
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py-newobjfileevent.o \
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py-objfile.o \
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py-param.o \
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py-prettyprint.o \
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@ -319,6 +320,7 @@ SUBDIR_PYTHON_SRCS = \
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python/py-inferior.c \
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python/py-infthread.c \
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python/py-lazy-string.c \
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python/py-newobjfileevent.c \
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python/py-objfile.c \
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python/py-param.c \
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python/py-prettyprint.c \
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@ -2115,6 +2117,10 @@ py-lazy-string.o: $(srcdir)/python/py-lazy-string.c
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$(COMPILE) $(PYTHON_CFLAGS) $(srcdir)/python/py-lazy-string.c
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$(POSTCOMPILE)
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py-newobjfileevent.o: $(srcdir)/python/py-newobjfileevent.c
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$(COMPILE) $(PYTHON_CFLAGS) $(srcdir)/python/py-newobjfileevent.c
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$(POSTCOMPILE)
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py-objfile.o: $(srcdir)/python/py-objfile.c
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$(COMPILE) $(PYTHON_CFLAGS) $(srcdir)/python/py-objfile.c
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$(POSTCOMPILE)
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3
gdb/NEWS
3
gdb/NEWS
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@ -46,6 +46,9 @@
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For example, "some_type['myfield']" now works, as does
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"some_type.items()".
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** A new event "gdb.new_objfile" has been added, triggered by loading a
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new object file.
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* libthread-db-search-path now supports two special values: $sdir and $pdir.
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$sdir specifies the default system locations of shared libraries.
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$pdir specifies the directory where the libpthread used by the application
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@ -22358,6 +22358,17 @@ in favor of the @code{gdb.BreakpointEvent.breakpoints} attribute.
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@end defvar
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@end table
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@item events.new_objfile
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Emits @code{gdb.NewObjFileEvent} which indicates that a new object file has
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been loaded by @value{GDBN}. @code{gdb.NewObjFileEvent} has one attribute:
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@table @code
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@defvar NewObjFileEvent.new_objfile
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A reference to the object file (@code{gdb.Objfile}) which has been loaded.
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@xref{Objfiles In Python}, for details of the @code{gdb.Objfile} object.
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@end defvar
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@end table
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@end table
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@node Threads In Python
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@ -111,6 +111,7 @@ extern int evpy_emit_event (PyObject *event,
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extern PyObject *create_event_object (PyTypeObject *py_type);
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extern PyObject *create_thread_event_object (PyTypeObject *py_type);
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extern int emit_new_objfile_event (struct objfile *objfile);
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extern void evpy_dealloc (PyObject *self);
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extern int evpy_add_attribute (PyObject *event,
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@ -45,6 +45,7 @@ typedef struct
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eventregistry_object *stop;
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eventregistry_object *cont;
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eventregistry_object *exited;
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eventregistry_object *new_objfile;
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PyObject *module;
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@ -58,6 +58,9 @@ gdbpy_initialize_py_events (void)
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if (add_new_registry (&gdb_py_events.exited, "exited") < 0)
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goto fail;
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if (add_new_registry (&gdb_py_events.new_objfile, "new_objfile") < 0)
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goto fail;
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Py_INCREF (gdb_py_events.module);
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if (PyModule_AddObject (gdb_module,
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"events",
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@ -22,6 +22,7 @@
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#include "gdbcore.h"
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#include "gdbthread.h"
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#include "inferior.h"
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#include "objfiles.h"
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#include "observer.h"
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#include "python-internal.h"
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#include "arch-utils.h"
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@ -125,6 +126,25 @@ python_inferior_exit (struct inferior *inf)
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do_cleanups (cleanup);
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}
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/* Callback used to notify Python listeners about new objfiles loaded in the
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inferior. */
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static void
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python_new_objfile (struct objfile *objfile)
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{
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struct cleanup *cleanup;
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if (objfile == NULL)
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return;
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cleanup = ensure_python_env (get_objfile_arch (objfile), current_language);
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if (emit_new_objfile_event (objfile) < 0)
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gdbpy_print_stack ();
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do_cleanups (cleanup);
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}
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/* Return a reference to the Python object of type Inferior
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representing INFERIOR. If the object has already been created,
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return it and increment the reference count, otherwise, create it.
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@ -715,6 +735,7 @@ gdbpy_initialize_inferior (void)
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observer_attach_normal_stop (python_on_normal_stop);
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observer_attach_target_resumed (python_on_resume);
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observer_attach_inferior_exit (python_inferior_exit);
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observer_attach_new_objfile (python_new_objfile);
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membuf_object_type.tp_new = PyType_GenericNew;
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if (PyType_Ready (&membuf_object_type) < 0)
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@ -214,6 +214,7 @@ void gdbpy_initialize_breakpoint_event (void);
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void gdbpy_initialize_continue_event (void);
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void gdbpy_initialize_exited_event (void);
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void gdbpy_initialize_thread_event (void);
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void gdbpy_initialize_new_objfile_event (void);
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struct cleanup *make_cleanup_py_decref (PyObject *py);
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@ -1257,6 +1257,7 @@ Enables or disables printing of Python stack traces."),
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gdbpy_initialize_continue_event ();
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gdbpy_initialize_exited_event ();
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gdbpy_initialize_thread_event ();
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gdbpy_initialize_new_objfile_event () ;
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observer_attach_before_prompt (before_prompt_hook);
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@ -16,6 +16,8 @@
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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extern void do_nothing (void);
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int second(){
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fork() ;
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return 12;
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@ -26,5 +28,6 @@ int first(){
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}
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int main (){
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do_nothing();
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return first();
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}
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@ -19,23 +19,39 @@ if $tracelevel then {
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load_lib gdb-python.exp
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set libfile "py-events-shlib"
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set libsrc $srcdir/$subdir/$libfile.c
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set lib_sl $objdir/$subdir/$libfile.so
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set lib_opts debug
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set testfile "py-events"
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set srcfile ${testfile}.c
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set binfile ${objdir}/${subdir}/${testfile}
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set exec_opts [list debug shlib=$lib_sl]
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set pyfile ${srcdir}/${subdir}/${testfile}.py
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if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile}] } {
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if [get_compiler_info ${binfile}] {
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return -1
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}
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if { [gdb_compile_shlib $libsrc $lib_sl $lib_opts] != ""
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|| [gdb_compile $srcdir/$subdir/$srcfile $binfile executable $exec_opts] != ""} {
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untested "Could not compile either $libsrc or $srcdir/$subdir/$srcfile."
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return -1
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}
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# Start with a fresh gdb.
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clean_restart ${testfile}
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if { [skip_python_tests] } { continue }
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gdb_test_no_output "python execfile ('${pyfile}')" ""
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if ![runto_main ] then {
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fail "Can't run to main"
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return -1
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}
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gdb_test "Test_Newobj_Events" "New ObjectFile Event tester registered." "Register new objfile event handler"
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gdb_breakpoint "main" {temporary}
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gdb_test "run" ".*event type: new_objfile.*new objfile name.*" "New objfile notification"
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gdb_test_no_output "set detach-on-fork off" ""
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@ -51,6 +51,14 @@ def continue_handler (event):
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if ( event.inferior_thread is not None) :
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print "thread num: %s" % (event.inferior_thread.num);
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def new_objfile_handler (event):
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if (isinstance (event, gdb.NewObjFileEvent)):
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print "event type: new_objfile"
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if (event.new_objfile is not None):
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print "new objfile name: %s" % (event.new_objfile.filename)
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else:
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print "new objfile is None"
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class test_events (gdb.Command):
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"""Test events."""
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print "Event testers registered."
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test_events ()
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class test_newobj_events (gdb.Command):
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"""NewObj events."""
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def __init__ (self):
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gdb.Command.__init__ (self, "test_newobj_events", gdb.COMMAND_STACK)
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def invoke (self, arg, from_tty):
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gdb.events.new_objfile.connect (new_objfile_handler)
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print "New ObjectFile Event tester registered."
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test_newobj_events ()
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