From: Pedro Alves <palves@redhat.com>
To: "Metzger, Markus T" <markus.t.metzger@intel.com>
Cc: "jan.kratochvil@redhat.com" <jan.kratochvil@redhat.com>,
"gdb-patches@sourceware.org" <gdb-patches@sourceware.org>
Subject: Re: [PATCH v9 21/29] record-btrace: provide xfer_partial target method
Date: Fri, 20 Dec 2013 15:36:00 -0000 [thread overview]
Message-ID: <52B46412.8040901@redhat.com> (raw)
In-Reply-To: <A78C989F6D9628469189715575E55B230AA3B990@IRSMSX104.ger.corp.intel.com>
On 12/20/2013 01:30 PM, Metzger, Markus T wrote:
>> -----Original Message-----
>> From: Pedro Alves [mailto:palves@redhat.com]
>> Sent: Thursday, December 19, 2013 8:27 PM
>> To: Metzger, Markus T
>> Cc: jan.kratochvil@redhat.com; gdb-patches@sourceware.org
>> Subject: Re: [PATCH v9 21/29] record-btrace: provide xfer_partial target
>> method
>>
>> On 12/19/2013 04:44 PM, Markus Metzger wrote:
>>
>> Also,
>>
>>> + /* Filter out requests that don't make sense during replay. */
>>> + if (!record_btrace_allow_memory_access &&
>> record_btrace_is_replaying ())
>>> + {
>>> + switch (object)
>>> + {
>>> + case TARGET_OBJECT_MEMORY:
>>> + case TARGET_OBJECT_RAW_MEMORY:
>>> + case TARGET_OBJECT_STACK_MEMORY:
>>> + {
>>
>> I don't think you answered my comment about this in the previous
>> series. I think you can't ever see TARGET_OBJECT_RAW_MEMORY or
>> TARGET_OBJECT_STACK_MEMORY here.
>
> If we ever end up seeing them, they will simply be forwarded to the
> target beneath without check. I think it's safer to leave them in.
> If you'd rather have them removed, I can do that, as well.
Please remove them. (Note how you'd already be missing
TARGET_OBJECT_CODE_MEMORY.) If targets ever saw those, we'd need
to update _all_ target's xfer_partial implementations. I see a
reference to TARGET_OBJECT_RAW_MEMORY somehow ended up in
record-full.c. We should remove that. As long as targets shouldn't
see those, random references around the codebase just add to confusion
(the reader needs to wonder why are those only handled in some
targets, for no good reason).
--
Pedro Alves
next prev parent reply other threads:[~2013-12-20 15:36 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-19 16:45 [PATCH v9 00/29] record-btrace: reverse Markus Metzger
2013-12-19 16:45 ` [PATCH v9 26/29] btrace, gdbserver: read branch trace incrementally Markus Metzger
2013-12-19 16:45 ` [PATCH v9 15/29] record-btrace: supply register target methods Markus Metzger
2013-12-19 16:45 ` [PATCH v9 20/29] target, breakpoint: allow insert/remove breakpoint to be forwarded Markus Metzger
2013-12-19 19:08 ` Pedro Alves
2013-12-19 16:45 ` [PATCH v9 07/29] btrace: change branch trace data structure Markus Metzger
2013-12-19 16:45 ` [PATCH v9 02/29] btrace, linux: fix memory leak when reading branch trace Markus Metzger
2013-12-19 16:45 ` [PATCH v9 06/29] frame: add frame_id_build_unavailable_stack_special Markus Metzger
2013-12-19 18:12 ` Pedro Alves
2013-12-19 16:45 ` [PATCH v9 14/29] target: add ops parameter to to_prepare_to_store method Markus Metzger
2013-12-19 18:30 ` Pedro Alves
2013-12-19 21:13 ` Tom Tromey
2013-12-20 13:07 ` Metzger, Markus T
2013-12-20 15:13 ` Tom Tromey
2013-12-20 17:23 ` Pedro Alves
2013-12-19 16:45 ` [PATCH v9 19/29] record-btrace, frame: supply target-specific unwinder Markus Metzger
2013-12-19 16:45 ` [PATCH v9 17/29] frame, cfa: check unwind stop reason first Markus Metzger
2013-12-19 16:45 ` [PATCH v9 27/29] record-btrace: show trace from enable location Markus Metzger
2013-12-19 16:45 ` [PATCH v9 01/29] btrace, test: fix multi-line btrace tests Markus Metzger
2013-12-19 18:01 ` Pedro Alves
2013-12-19 16:45 ` [PATCH v9 18/29] frame: do not assume unwinding will succeed Markus Metzger
2013-12-19 16:45 ` [PATCH v9 05/29] frame: add frame_is_tailcall function Markus Metzger
2013-12-19 20:19 ` Pedro Alves
2013-12-19 16:45 ` [PATCH v9 08/29] record-btrace: fix insn range in function call history Markus Metzger
2013-12-19 16:45 ` [PATCH v9 16/29] frame, backtrace: allow targets to supply a frame unwinder Markus Metzger
2013-12-19 18:41 ` Pedro Alves
2013-12-19 16:45 ` [PATCH v9 11/29] record-btrace: optionally indent function call history Markus Metzger
2013-12-19 18:23 ` Pedro Alves
2013-12-20 12:54 ` Metzger, Markus T
2013-12-20 16:47 ` Pedro Alves
2013-12-19 16:45 ` [PATCH v9 12/29] record-btrace: make ranges include begin and end Markus Metzger
2013-12-19 17:29 ` Eli Zaretskii
2013-12-19 16:45 ` [PATCH v9 09/29] record-btrace: start counting at one Markus Metzger
2013-12-19 17:27 ` Eli Zaretskii
2013-12-19 16:45 ` [PATCH v9 04/29] gdbarch: add instruction predicate methods Markus Metzger
2013-12-19 20:19 ` Pedro Alves
2013-12-19 16:45 ` [PATCH v9 21/29] record-btrace: provide xfer_partial target method Markus Metzger
2013-12-19 19:13 ` Pedro Alves
2013-12-20 13:37 ` Metzger, Markus T
2013-12-20 13:54 ` Metzger, Markus T
2013-12-20 15:56 ` Pedro Alves
2013-12-20 16:02 ` Pedro Alves
2014-01-13 17:11 ` Pedro Alves
2014-01-13 12:36 ` Metzger, Markus T
2014-01-13 16:47 ` Pedro Alves
2013-12-19 19:26 ` Pedro Alves
2013-12-20 13:32 ` Metzger, Markus T
2013-12-20 15:36 ` Pedro Alves [this message]
2013-12-19 16:45 ` [PATCH v9 28/29] target: allow decr_pc_after_break to be defined by the target Markus Metzger
2013-12-19 19:51 ` Pedro Alves
2013-12-19 16:45 ` [PATCH v9 03/29] btrace: uppercase btrace_read_type Markus Metzger
2013-12-19 16:45 ` [PATCH v9 22/29] record-btrace: add to_wait and to_resume target methods Markus Metzger
2013-12-19 16:45 ` [PATCH v9 25/29] record-btrace: extend unwinder Markus Metzger
2013-12-19 16:45 ` [PATCH v9 10/29] btrace: increase buffer size Markus Metzger
2013-12-19 16:45 ` [PATCH v9 24/29] record-btrace: add record goto target methods Markus Metzger
2013-12-19 16:45 ` [PATCH v9 29/29] record-btrace: add (reverse-)stepping support Markus Metzger
2013-12-19 17:31 ` Eli Zaretskii
2013-12-19 20:10 ` Pedro Alves
2013-12-20 14:37 ` Metzger, Markus T
2013-12-20 14:47 ` Metzger, Markus T
2013-12-20 16:31 ` Pedro Alves
2013-12-20 16:07 ` Pedro Alves
2013-12-19 16:45 ` [PATCH v9 13/29] btrace: add replay position to btrace thread info Markus Metzger
2013-12-19 16:45 ` [PATCH v9 23/29] record-btrace: provide target_find_new_threads method Markus Metzger
2013-12-19 19:32 ` Pedro Alves
2013-12-19 20:23 ` [PATCH v9 00/29] record-btrace: reverse Pedro Alves
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