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Introduce gdb.FinishBreakpoint in Python

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* Makefile.in (SUBDIR_PYTHON_OBS): Add py-finishbreakpoint.o.
	(SUBDIR_PYTHON_SRCS): Add python/py-finishbreakpoint.c.
	Add build rule for this file.
	* infcmd.c (print_return_value): Split to create get_return_value.
	(get_return_value): New function based on print_return_value. Handle
	case where stop_registers are not set.
	* inferior.h (get_return_value): New prototype.
	* python/py-breakpoint.c (bppy_pending_object): Make non-static.
	(gdbpy_breakpoint_created): Set is_py_finish_bp is necessary.
	(struct breakpoint_object): Move to python-internal.h
	(BPPY_REQUIRE_VALID): Likewise.
	(BPPY_SET_REQUIRE_VALID): Likewise.
	(gdbpy_breakpoint_created): Initialize is_finish_bp.
	(gdbpy_should_stop): Add  pre/post hooks before/after calling stop
	method.
	* python/python-internal.h (breakpoint_object_type): Add as extern.
	(bppy_pending_object): Likewise.
	(typedef struct breakpoint_object) Removed.
	(struct breakpoint_object): Moved from py-breakpoint.c.
	Add field is_finish_bp.
	(BPPY_REQUIRE_VALID): Moved from py-breakpoint.c.
	(BPPY_SET_REQUIRE_VALID): Likewise.
	(frame_object_to_frame_info): New prototype.
	(gdbpy_initialize_finishbreakpoints): New prototype.
	(bpfinishpy_is_finish_bp): Likewise.
	(bpfinishpy_pre_stop_hook): Likewise.
	(bpfinishpy_post_stop_hook): Likewise.
	* python/py-finishbreakpoint.c: New file.
	* python/py-frame.c(frame_object_to_frame_info): Make non-static and
	accept PyObject instead of frame_object.
	(frapy_is_valid): Don't cast to frame_object.
	(frapy_name): Likewise.
	(frapy_type): Likewise.
	(frapy_unwind_stop_reason): Likewise.
	(frapy_pc): Likewise.
	(frapy_block): Likewise.
	(frapy_function): Likewise.
	(frapy_older): Likewise.
	(frapy_newer): Likewise.
	(frapy_find_sal): Likewise.
	(frapy_read_var): Likewise.
	(frapy_select): Likewise.
	* python/python.c (gdbpy_is_stopped_at_finish_bp): New noop function.
	(_initialize_python): Add gdbpy_initialize_finishbreakpoints.
	* python/python.h: Include breakpoint.h
	(gdbpy_is_stopped_at_finish_bp): New prototype.

doc/
	* gdb.texinfo (Finish Breakpoints in Python): New subsection.
	(Python API): Add menu entry for Finish Breakpoints.

testsuite/
	* Makefile.in (EXECUTABLES): Add py-finish-breakpoint and
	py-finish-breakpoint2
	(MISCALLANEOUS): Add py-events-shlib.so and py-events-shlib-nodebug.so
	* gdb.python/py-breakpoint.exp (mult_line): Define and use variable
	instead of line number.
	* gdb.python/py-finish-breakpoint.c: New file.
	* gdb.python/py-finish-breakpoint.exp: New file.
	* gdb.python/py-finish-breakpoint.py: New file.
	* gdb.python/py-finish-breakpoint2.cc: New file.
	* gdb.python/py-finish-breakpoint2.exp: New file.
	* gdb.python/py-finish-breakpoint2.py: New file.
This commit is contained in:
Kevin Pouget 2011-12-23 17:06:16 +00:00
parent 6538471c25
commit cc72b2a2da
23 changed files with 1329 additions and 69 deletions
Download patch file Download diff file Expand all files Collapse all files

48
gdb/python/py-breakpoint.c
View file

@ -31,52 +31,16 @@
#include "arch-utils.h"
#include "language.h"
static PyTypeObject breakpoint_object_type;
/* Number of live breakpoints. */
static int bppy_live;
/* Variables used to pass information between the Breakpoint
constructor and the breakpoint-created hook function. */
static breakpoint_object *bppy_pending_object;
breakpoint_object *bppy_pending_object;
/* Function that is called when a Python condition is evaluated. */
static char * const stop_func = "stop";
struct breakpoint_object
{
PyObject_HEAD
/* The breakpoint number according to gdb. */
int number;
/* The gdb breakpoint object, or NULL if the breakpoint has been
deleted. */
struct breakpoint *bp;
};
/* Require that BREAKPOINT be a valid breakpoint ID; throw a Python
exception if it is invalid. */
#define BPPY_REQUIRE_VALID(Breakpoint) \
do { \
if ((Breakpoint)->bp == NULL) \
return PyErr_Format (PyExc_RuntimeError, \
_("Breakpoint %d is invalid."), \
(Breakpoint)->number); \
} while (0)
/* Require that BREAKPOINT be a valid breakpoint ID; throw a Python
exception if it is invalid. This macro is for use in setter functions. */
#define BPPY_SET_REQUIRE_VALID(Breakpoint) \
do { \
if ((Breakpoint)->bp == NULL) \
{ \
PyErr_Format (PyExc_RuntimeError, _("Breakpoint %d is invalid."), \
(Breakpoint)->number); \
return -1; \
} \
} while (0)
/* This is used to initialize various gdb.bp_* constants. */
struct pybp_code
{
@ -762,6 +726,9 @@ gdbpy_should_stop (struct breakpoint_object *bp_obj)
struct gdbarch *garch = b->gdbarch ? b->gdbarch : get_current_arch ();
struct cleanup *cleanup = ensure_python_env (garch, current_language);
if (bp_obj->is_finish_bp)
bpfinishpy_pre_stop_hook (bp_obj);
if (PyObject_HasAttrString (py_bp, stop_func))
{
PyObject *result = PyObject_CallMethod (py_bp, stop_func, NULL);
@ -783,6 +750,10 @@ gdbpy_should_stop (struct breakpoint_object *bp_obj)
else
gdbpy_print_stack ();
}
if (bp_obj->is_finish_bp)
bpfinishpy_post_stop_hook (bp_obj);
do_cleanups (cleanup);
return stop;
@ -845,6 +816,7 @@ gdbpy_breakpoint_created (struct breakpoint *bp)
newbp->number = bp->number;
newbp->bp = bp;
newbp->bp->py_bp_object = newbp;
newbp->is_finish_bp = 0;
Py_INCREF (newbp);
++bppy_live;
}
@ -1006,7 +978,7 @@ static PyMethodDef breakpoint_object_methods[] =
{ NULL } /* Sentinel. */
};
static PyTypeObject breakpoint_object_type =
PyTypeObject breakpoint_object_type =
{
PyObject_HEAD_INIT (NULL)
0, /*ob_size*/