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PR python/15620, PR python/18620 - breakpoint events in Python

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This patch adds some breakpoint events to Python.  In particular,
there is a creation event that is emitted when a breakpoint is
created; a modification event that is emitted when a breakpoint
changes somehow; and a deletion event that is emitted when a
breakpoint is deleted.

In this patch, the event's payload is the breakpoint itself.  I
considered making a new event type to hold the breakpoint, but I
didn't see a need.  Still, I thought I would mention this as a spot
where some other choice is possible.

Built and regtested on x86-64 Fedora 23.

2016-07-13  Tom Tromey  <tom@tromey.com>

	PR python/15620, PR python/18620:
	* python/py-evts.c (gdbpy_initialize_py_events): Call
	add_new_registry for new events.
	* python/py-events.h (events_object) <breakpoint_created,
	breakpoint_deleted, breakpoint_modified>: New fields.
	* python/py-breakpoint.c (gdbpy_breakpoint_created): Emit the
	breakpoint changed event.
	(gdbpy_breakpoint_deleted): Emit the breakpoint deleted event.
	(gdbpy_breakpoint_modified): New function.
	(gdbpy_initialize_breakpoints): Attach to the breakpoint modified
	observer.

2016-07-13  Tom Tromey  <tom@tromey.com>

	PR python/15620, PR python/18620:
	* python.texi (Events In Python): Document new breakpoint events.

2016-07-13  Tom Tromey  <tom@tromey.com>

	PR python/15620, PR python/18620:
	* gdb.python/py-breakpoint.exp (connect_event, check_last_event)
	(test_bkpt_events): New procs.
This commit is contained in:
Tom Tromey
2015-05-04 21:49:11 -06:00
parent 93daf339a4
commit dac790e1b9
8 changed files with 143 additions and 0 deletions
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15
gdb/doc/python.texi
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@@ -2965,6 +2965,21 @@ A gdb.Frame object representing the frame in which the register was modified.
Denotes which register was modified.
@end defvar
@item events.breakpoint_created
This is emitted when a new breakpoint has been created. The argument
that is passed is the new @code{gdb.Breakpoint} object.
@item events.breakpoint_modified
This is emitted when a breakpoint has been modified in some way. The
argument that is passed is the new @code{gdb.Breakpoint} object.
@item events.breakpoint_deleted
This is emitted when a breakpoint has been deleted. The argument that
is passed is the @code{gdb.Breakpoint} object. When this event is
emitted, the @code{gdb.Breakpoint} object will already be in its
invalid state; that is, the @code{is_valid} method will return
@code{False}.
@end table
@node Threads In Python