From: Jan Kratochvil <jan.kratochvil@redhat.com>
To: "Metzger, Markus T" <markus.t.metzger@intel.com>
Cc: "gdb-patches@sourceware.org" <gdb-patches@sourceware.org>,
"Himpel, Christian" <christian.himpel@intel.com>
Subject: Re: [patch v4 03/24] btrace: change branch trace data structure
Date: Mon, 23 Sep 2013 07:15:00 -0000 [thread overview]
Message-ID: <20130923071454.GA7030@host2.jankratochvil.net> (raw)
In-Reply-To: <A78C989F6D9628469189715575E55B230A9D4934@IRSMSX104.ger.corp.intel.com>
On Mon, 23 Sep 2013 08:54:01 +0200, Metzger, Markus T wrote:
> The trace is collected in a cyclic buffer by the h/w. When the inferior
> stops, GDB reads that buffer which corresponds to the tail of the
> inferior's execution trace.
I somehow expected kernel SIGTRAPs the process when the buffer overflows so
that the buffer could be read in.
OK, GDB code now makes more sense to me, just it should be more described in
the manual, I have made such comment in [patch v6 21/21] after I reply it.
Thanks,
Jan
next prev parent reply other threads:[~2013-09-23 7:15 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-03 9:15 [patch v4 00/24] record-btrace: reverse Markus Metzger
2013-07-03 9:14 ` [patch v4 05/24] record-btrace: start counting at one Markus Metzger
2013-08-18 19:11 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 09/24] btrace: add replay position to btrace thread info Markus Metzger
2013-08-18 19:07 ` Jan Kratochvil
2013-09-10 13:24 ` Metzger, Markus T
2013-09-12 20:19 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 16/24] record-btrace: provide target_find_new_threads method Markus Metzger
2013-08-18 19:15 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 22/24] infrun: reverse stepping from unknown functions Markus Metzger
2013-08-18 19:09 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 08/24] record-btrace: make ranges include begin and end Markus Metzger
2013-08-18 19:12 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 07/24] record-btrace: optionally indent function call history Markus Metzger
2013-08-18 19:06 ` Jan Kratochvil
2013-09-10 13:06 ` Metzger, Markus T
2013-09-10 13:08 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 02/24] record: upcase record_print_flag enumeration constants Markus Metzger
2013-08-18 19:11 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 14/24] record-btrace: provide xfer_partial target method Markus Metzger
2013-08-18 19:08 ` Jan Kratochvil
2013-09-16 9:30 ` Metzger, Markus T
2013-09-22 14:18 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 24/24] record-btrace: skip tail calls in back trace Markus Metzger
2013-08-18 19:10 ` Jan Kratochvil
2013-09-17 14:28 ` Metzger, Markus T
2013-09-18 8:28 ` Metzger, Markus T
2013-09-18 9:52 ` Metzger, Markus T
2013-07-03 9:14 ` [patch v4 11/24] record-btrace: supply register target methods Markus Metzger
2013-08-18 19:07 ` Jan Kratochvil
2013-09-16 9:19 ` Metzger, Markus T
2013-09-22 13:55 ` Jan Kratochvil
2013-09-23 6:55 ` Metzger, Markus T
2013-07-03 9:14 ` [patch v4 20/24] btrace, gdbserver: read branch trace incrementally Markus Metzger
2013-08-18 19:09 ` Jan Kratochvil
2013-09-16 12:48 ` Metzger, Markus T
2013-09-22 14:42 ` Jan Kratochvil
2013-09-23 7:09 ` Metzger, Markus T
2013-09-25 19:05 ` Jan Kratochvil
2013-09-26 6:27 ` Metzger, Markus T
2013-07-03 9:14 ` [patch v4 10/24] target: add ops parameter to to_prepare_to_store method Markus Metzger
2013-08-18 19:07 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 19/24] btrace, linux: fix memory leak when reading branch trace Markus Metzger
2013-08-18 19:09 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 03/24] btrace: change branch trace data structure Markus Metzger
2013-08-18 19:05 ` Jan Kratochvil
2013-09-10 9:11 ` Metzger, Markus T
2013-09-12 20:09 ` Jan Kratochvil
2013-09-16 9:01 ` Metzger, Markus T
2013-09-21 19:44 ` Jan Kratochvil
2013-09-23 6:54 ` Metzger, Markus T
2013-09-23 7:15 ` Jan Kratochvil [this message]
2013-09-23 7:27 ` Metzger, Markus T
2013-09-22 16:57 ` Jan Kratochvil
2013-09-22 17:16 ` Jan Kratochvil
2013-07-03 9:15 ` [patch v4 13/24] record-btrace, frame: supply target-specific unwinder Markus Metzger
2013-08-18 19:07 ` Jan Kratochvil
2013-07-03 9:15 ` [patch v4 23/24] record-btrace: add (reverse-)stepping support Markus Metzger
2013-08-18 19:09 ` Jan Kratochvil
2013-09-17 9:43 ` Metzger, Markus T
2013-09-29 17:24 ` Jan Kratochvil
2013-09-30 9:30 ` Metzger, Markus T
2013-09-30 10:25 ` Jan Kratochvil
2013-07-03 9:15 ` [patch v4 06/24] btrace: increase buffer size Markus Metzger
2013-08-18 19:06 ` Jan Kratochvil
2013-07-03 9:15 ` [patch v4 15/24] record-btrace: add to_wait and to_resume target methods Markus Metzger
2013-08-18 19:08 ` Jan Kratochvil
2013-07-03 9:15 ` [patch v4 17/24] record-btrace: add record goto " Markus Metzger
2013-08-18 19:08 ` Jan Kratochvil
2013-07-03 9:15 ` [patch v4 01/24] gdbarch: add instruction predicate methods Markus Metzger
2013-07-03 9:49 ` Mark Kettenis
2013-07-03 11:10 ` Metzger, Markus T
2013-08-18 19:04 ` Jan Kratochvil
2013-07-03 9:15 ` [patch v4 04/24] record-btrace: fix insn range in function call history Markus Metzger
2013-08-18 19:06 ` Jan Kratochvil
2013-07-03 9:15 ` [patch v4 18/24] record-btrace: extend unwinder Markus Metzger
2013-08-18 19:08 ` Jan Kratochvil
2013-09-16 11:21 ` Metzger, Markus T
2013-09-27 13:55 ` Jan Kratochvil
2013-09-30 9:45 ` Metzger, Markus T
2013-09-30 10:26 ` Jan Kratochvil
2013-07-03 9:15 ` [patch v4 21/24] record-btrace: show trace from enable location Markus Metzger
2013-08-18 19:10 ` instruction_history.exp unset variable [Re: [patch v4 21/24] record-btrace: show trace from enable location] Jan Kratochvil
2013-09-16 14:11 ` Metzger, Markus T
2013-08-18 19:16 ` [patch v4 21/24] record-btrace: show trace from enable location Jan Kratochvil
2013-07-03 9:15 ` [patch v4 12/24] frame, backtrace: allow targets to supply a frame unwinder Markus Metzger
2013-08-18 19:14 ` Jan Kratochvil
2013-08-18 19:04 ` [patch v4 00/24] record-btrace: reverse Jan Kratochvil
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