btrace: async support
Add support for async command execution. This fixes the gdb.btrace tests. * record-btrace.c: Include event-loop.h and inf-loop.h. (record_btrace_resume_exec_dir) (record_btrace_async_inferior_event_handler) (record_btrace_handle_async_inferior_event): New. (record_btrace_open): Create async event handler. (record_btrace_close): Delete async event handler. (record_btrace_resume): Set record_btrace_resume_exec_dir, Mark async event handler. (record_btrace_execution_direction): New. (init_record_btrace_ops): Initialize to_execution_direction.
This commit is contained in:
Markus Metzger
parent
9f5a4cef68
commit
70ad5bfff3
2 changed files with 55 additions and 0 deletions
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@ -1,3 +1,16 @@
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2014-06-04 Markus Metzger <markus.t.metzger@intel.com>
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* record-btrace.c: Include event-loop.h and inf-loop.h.
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(record_btrace_resume_exec_dir)
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(record_btrace_async_inferior_event_handler)
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(record_btrace_handle_async_inferior_event): New.
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(record_btrace_open): Create async event handler.
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(record_btrace_close): Delete async event handler.
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(record_btrace_resume): Set record_btrace_resume_exec_dir,
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Mark async event handler.
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(record_btrace_execution_direction): New.
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(init_record_btrace_ops): Initialize to_execution_direction.
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2014-06-03 Doug Evans <xdje42@gmail.com>
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* guile/scm-param.c (pascm_make_param_smob): Add ARI comment.
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@ -36,6 +36,8 @@
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#include "frame-unwind.h"
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#include "hashtab.h"
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#include "infrun.h"
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#include "event-loop.h"
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#include "inf-loop.h"
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/* The target_ops of record-btrace. */
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static struct target_ops record_btrace_ops;
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@ -60,6 +62,12 @@ static const char *replay_memory_access = replay_memory_access_read_only;
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static struct cmd_list_element *set_record_btrace_cmdlist;
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static struct cmd_list_element *show_record_btrace_cmdlist;
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/* The execution direction of the last resume we got. See record-full.c. */
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static enum exec_direction_kind record_btrace_resume_exec_dir = EXEC_FORWARD;
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/* The async event handler for reverse/replay execution. */
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static struct async_event_handler *record_btrace_async_inferior_event_handler;
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/* Print a record-btrace debug message. Use do ... while (0) to avoid
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ambiguities when used in if statements. */
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@ -166,6 +174,14 @@ record_btrace_auto_disable (void)
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record_btrace_thread_observer = NULL;
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}
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/* The record-btrace async event handler function. */
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static void
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record_btrace_handle_async_inferior_event (gdb_client_data data)
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{
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inferior_event_handler (INF_REG_EVENT, NULL);
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}
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/* The to_open method of target record-btrace. */
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static void
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@ -202,6 +218,10 @@ record_btrace_open (char *args, int from_tty)
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push_target (&record_btrace_ops);
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record_btrace_async_inferior_event_handler
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= create_async_event_handler (record_btrace_handle_async_inferior_event,
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NULL);
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observer_notify_record_changed (current_inferior (), 1);
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discard_cleanups (disable_chain);
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@ -230,6 +250,9 @@ record_btrace_close (struct target_ops *self)
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{
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struct thread_info *tp;
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if (record_btrace_async_inferior_event_handler != NULL)
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delete_async_event_handler (&record_btrace_async_inferior_event_handler);
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/* Make sure automatic recording gets disabled even if we did not stop
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recording before closing the record-btrace target. */
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record_btrace_auto_disable ();
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@ -1490,6 +1513,9 @@ record_btrace_resume (struct target_ops *ops, ptid_t ptid, int step,
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DEBUG ("resume %s: %s", target_pid_to_str (ptid), step ? "step" : "cont");
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/* Store the execution direction of the last resume. */
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record_btrace_resume_exec_dir = execution_direction;
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tp = record_btrace_find_resume_thread (ptid);
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if (tp == NULL)
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error (_("Cannot find thread to resume."));
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@ -1524,6 +1550,13 @@ record_btrace_resume (struct target_ops *ops, ptid_t ptid, int step,
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/* We just indicate the resume intent here. The actual stepping happens in
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record_btrace_wait below. */
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/* Async support. */
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if (target_can_async_p ())
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{
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target_async (inferior_event_handler, 0);
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mark_async_event_handler (record_btrace_async_inferior_event_handler);
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}
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}
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/* Find a thread to move. */
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@ -1898,6 +1931,14 @@ record_btrace_goto (struct target_ops *self, ULONGEST insn)
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print_stack_frame (get_selected_frame (NULL), 1, SRC_AND_LOC, 1);
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}
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/* The to_execution_direction target method. */
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static enum exec_direction_kind
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record_btrace_execution_direction (struct target_ops *self)
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{
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return record_btrace_resume_exec_dir;
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}
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/* Initialize the record-btrace target ops. */
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static void
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@ -1941,6 +1982,7 @@ init_record_btrace_ops (void)
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ops->to_goto_record = record_btrace_goto;
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ops->to_can_execute_reverse = record_btrace_can_execute_reverse;
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ops->to_decr_pc_after_break = record_btrace_decr_pc_after_break;
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ops->to_execution_direction = record_btrace_execution_direction;
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ops->to_stratum = record_stratum;
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ops->to_magic = OPS_MAGIC;
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}
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