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Garbage collect thread continuations

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Nothing uses thread continuations anymore.

(inferior continuations are still used by the attach command.)

gdb/ChangeLog:
2015-09-09  Pedro Alves  <palves@redhat.com>

	* continuations.c (add_continuation, restore_thread_cleanup)
	(do_all_continuations_ptid, do_all_continuations_thread_callback)
	(do_all_continuations_thread, do_all_continuations)
	(discard_all_continuations_thread_callback)
	(discard_all_continuations_thread, discard_all_continuations)
	(add_intermediate_continuation)
	(do_all_intermediate_continuations_thread_callback)
	(do_all_intermediate_continuations_thread)
	(do_all_intermediate_continuations)
	(discard_all_intermediate_continuations_thread_callback)
	(discard_all_intermediate_continuations_thread)
	(discard_all_intermediate_continuations): Delete.
	* continuations.h (add_continuation, do_all_continuations)
	(do_all_continuations_thread, discard_all_continuations)
	(discard_all_continuations_thread, add_intermediate_continuation)
	(do_all_intermediate_continuations)
	(do_all_intermediate_continuations_thread)
	(discard_all_intermediate_continuations)
	(discard_all_intermediate_continuations_thread): Delete
	declarations.
	* event-top.c (stdin_event_handler): Delete references to
	continuations.
	* gdbthread.h (struct thread_info): Delete continuations and
	intermediate_continuations fields.
	* inf-loop.c (inferior_event_handler): Remove references to
	continuations.
	* infrun.c (infrun_thread_stop_requested_callback): Remove
	references to continuations.
	* target.h (enum inferior_event_type) <INF_EXEC_CONTINUE>: Delete.
	* thread.c: Don't include "continuations.h".
	(clear_thread_inferior_resources): Remove references to
	continuations.
This commit is contained in:
Pedro Alves
2015-09-09 18:23:25 +01:00
parent 0700e23e5f
commit a85a307923
9 changed files with 38 additions and 303 deletions
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12
gdb/gdbthread.h
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@@ -265,18 +265,6 @@ struct thread_info
when GDB gets back SIGTRAP from step_resume_breakpoint. */
int step_after_step_resume_breakpoint;
/* Per-thread command support. */
/* Pointer to what is left to do for an execution command after the
target stops. Used only in asynchronous mode, by targets that
support async execution. Several execution commands use it. */
struct continuation *continuations;
/* Similar to the above, but used when a single execution command
requires several resume/stop iterations. Used by the step
command. */
struct continuation *intermediate_continuations;
/* Pointer to the state machine manager object that handles what is
left to do for the thread's execution command after the target
stops. Several execution commands use it. */