From: Markus Metzger <markus.t.metzger@intel.com>
To: jan.kratochvil@redhat.com, palves@redhat.com
Cc: gdb-patches@sourceware.org
Subject: [PATCH v9 23/29] record-btrace: provide target_find_new_threads method
Date: Thu, 19 Dec 2013 16:45:00 -0000 [thread overview]
Message-ID: <1387471499-29444-24-git-send-email-markus.t.metzger@intel.com> (raw)
In-Reply-To: <1387471499-29444-1-git-send-email-markus.t.metzger@intel.com>
The "info threads" command tries to read memory, which is not possible during
replay. This results in an error message and aborts the command without showing
the existing threads.
Provide a to_find_new_threads target method to skip the search while replaying.
2013-12-19 Markus Metzger <markus.t.metzger@intel.com>
* record-btrace.c (record_btrace_find_new_threads): New.
(init_record_btrace_ops): Initialize to_find_new_threads.
---
gdb/record-btrace.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/gdb/record-btrace.c b/gdb/record-btrace.c
index bb140ce..f6272b4 100644
--- a/gdb/record-btrace.c
+++ b/gdb/record-btrace.c
@@ -1055,6 +1055,24 @@ record_btrace_wait (struct target_ops *ops, ptid_t ptid,
error (_("You can't do this from here. Do 'record goto end', first."));
}
+/* The to_find_new_threads method of target record-btrace. */
+
+static void
+record_btrace_find_new_threads (struct target_ops *ops)
+{
+ /* Don't expect new threads if we're replaying. */
+ if (record_btrace_is_replaying ())
+ return;
+
+ /* Forward the request. */
+ for (ops = ops->beneath; ops != NULL; ops = ops->beneath)
+ if (ops->to_find_new_threads != NULL)
+ {
+ ops->to_find_new_threads (ops);
+ break;
+ }
+}
+
/* Initialize the record-btrace target ops. */
static void
@@ -1091,6 +1109,7 @@ init_record_btrace_ops (void)
ops->to_get_unwinder = &record_btrace_frame_unwind;
ops->to_resume = record_btrace_resume;
ops->to_wait = record_btrace_wait;
+ ops->to_find_new_threads = record_btrace_find_new_threads;
ops->to_stratum = record_stratum;
ops->to_magic = OPS_MAGIC;
}
--
1.8.3.1
next prev parent reply other threads:[~2013-12-19 16:45 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 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 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 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 02/29] btrace, linux: fix memory leak when reading branch trace Markus Metzger
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 26/29] btrace, gdbserver: read branch trace incrementally 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 15/29] record-btrace: supply register target methods Markus Metzger
2013-12-19 16:45 ` [PATCH v9 07/29] btrace: change branch trace data structure 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 ` Markus Metzger [this message]
2013-12-19 19:32 ` [PATCH v9 23/29] record-btrace: provide target_find_new_threads method Pedro Alves
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 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
2013-12-19 16:45 ` [PATCH v9 03/29] btrace: uppercase btrace_read_type Markus Metzger
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 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 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 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 09/29] record-btrace: start counting at one Markus Metzger
2013-12-19 17:27 ` Eli Zaretskii
2013-12-19 20:23 ` [PATCH v9 00/29] record-btrace: reverse Pedro Alves
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