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From: Tom Tromey <tom@tromey.com>
To: Andrew Burgess <andrew.burgess@embecosm.com>
Cc: gdb-patches@sourceware.org
Subject: Re: [PATCH 1/2] gdb/python: Reuse gdb.RegisterDescriptor objects where possible
Date: Mon, 13 Jul 2020 12:21:41 -0600	[thread overview]
Message-ID: <871rlf8edm.fsf@tromey.com> (raw)
In-Reply-To: <325856d3d21fd0f417d4ec0bfd9b233c0190c780.1594197735.git.andrew.burgess@embecosm.com> (Andrew Burgess's message of "Wed, 8 Jul 2020 09:48:11 +0100")

>>>>> "Andrew" == Andrew Burgess <andrew.burgess@embecosm.com> writes:

Andrew> 	* python/py-registers.c (gdbpy_register_object_data): New static
Andrew> 	global.
Andrew> 	(gdbpy_register_object_data_init): New function.
Andrew> 	(gdbpy_new_register_descriptor): Renamed to...
Andrew> 	(gdbpy_get_register_descriptor): ...this, and update to reuse
Andrew> 	existing register descriptors where possible.
Andrew> 	(gdbpy_register_descriptor_iter_next): Update.
Andrew> 	(gdbpy_initialize_registers): Register new gdbarch data.

This looks reasonable to me.

Andrew> +static void *
Andrew> +gdbpy_register_object_data_init (struct gdbarch *gdbarch)
Andrew> +{
Andrew> +  std::vector<const register_descriptor_object *> *vec
Andrew> +    = new (std::vector<const register_descriptor_object *>);
Andrew> +  return (void *) vec;

It seems a bit strange to use "const" here, since the refcounts do
change, and the code has to cast away const elsewhere.

Also I wonder if a vector of PyObject* or even gdb_pyref<> would be
better.

Tom

  reply	other threads:[~2020-07-13 18:21 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-08  8:48 [PATCH 0/2] Improvements to Python Register Descriptor API Andrew Burgess
2020-07-08  8:48 ` [PATCH 1/2] gdb/python: Reuse gdb.RegisterDescriptor objects where possible Andrew Burgess
2020-07-13 18:21   ` Tom Tromey [this message]
2020-07-08  8:48 ` [PATCH 2/2] gdb/python: Reuse gdb.RegisterGroup " Andrew Burgess
2020-07-13 18:23   ` Tom Tromey
2020-07-14 17:14 ` [PATCHv2 0/2] Improvements to Python Register Descriptor API Andrew Burgess
2020-07-14 17:14   ` [PATCHv2 1/2] gdb/python: Reuse gdb.RegisterDescriptor objects where possible Andrew Burgess
2020-07-22 13:10     ` Pedro Alves
2020-07-22 14:05       ` Andrew Burgess
2020-07-22 14:32         ` Pedro Alves
2020-07-22 15:10           ` Andrew Burgess
2020-07-14 17:14   ` [PATCHv2 2/2] gdb/python: Reuse gdb.RegisterGroup " Andrew Burgess
2020-07-21 18:26   ` [PATCHv2 0/2] Improvements to Python Register Descriptor API Tom Tromey

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