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gdb/python: New method to access list of register groups

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Add a new method gdb.Architecture.register_groups which returns a new
object of type gdb.RegisterGroupsIterator.  This new iterator then
returns objects of type gdb.RegisterGroup.

Each gdb.RegisterGroup object just wraps a single reggroup pointer,
and (currently) has just one read-only property 'name' that is a
string, the name of the register group.

As with the previous commit (adding gdb.RegisterDescriptor) I made
gdb.RegisterGroup an object rather than just a string in case we want
to add additional properties in the future.

gdb/ChangeLog:

	* NEWS: Mention additions to Python API.
	* python/py-arch.c (archpy_register_groups): New function.
	(arch_object_methods): Add 'register_groups' method.
	* python/py-registers.c (reggroup_iterator_object): New struct.
	(reggroup_object): New struct.
	(gdbpy_new_reggroup): New function.
	(gdbpy_reggroup_to_string): New function.
	(gdbpy_reggroup_name): New function.
	(gdbpy_reggroup_iter): New function.
	(gdbpy_reggroup_iter_next): New function.
	(gdbpy_new_reggroup_iterator): New function
	(gdbpy_initialize_registers): Register new types.
	(reggroup_iterator_object_type): Define new Python type.
	(gdbpy_reggroup_getset): New static global.
	(reggroup_object_type): Define new Python type.
	* python/python-internal.h

gdb/testsuite/ChangeLog:

	* gdb.python/py-arch-reg-groups.exp: New file.

gdb/doc/ChangeLog:

	* gdb.texi (Registers): Add @anchor for 'info registers
	<reggroup>' command.
	* python.texi (Architectures In Python): Document new
	register_groups method.
	(Registers In Python): Document two new object types related to
	register groups.
This commit is contained in:
Andrew Burgess 2020-06-07 10:08:01 +01:00
parent 0f767f942b
commit 64cb3757a9
10 changed files with 371 additions and 0 deletions
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gdb/python/python-internal.h
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@ -475,6 +475,7 @@ PyObject *gdbarch_to_arch_object (struct gdbarch *gdbarch);
PyObject *gdbpy_new_register_descriptor_iterator (struct gdbarch *gdbarch,
const char *group_name);
PyObject *gdbpy_new_reggroup_iterator (struct gdbarch *gdbarch);
gdbpy_ref<thread_object> create_thread_object (struct thread_info *tp);
gdbpy_ref<> thread_to_thread_object (thread_info *thr);;