binutils-gdb/gdb/target-connection.h
Pedro Alves 2f4fcf0039 Require always-non-stop for multi-target resumptions
Currently, we can only support resuming multiple targets at the same
time if all targets are in non-stop mode (or user-visible all-stop
mode with target backend in non-stop mode).

This patch makes GDB error out if the user tries to resume more than
one target at the same time and one of the resumed targets isn't in
non-stop mode:

 (gdb) info inferiors
   Num  Description       Connection                Executable
   1    process 15303     1 (native)                a.out
 * 2    process 15286     2 (extended-remote :9999) a.out
 (gdb) set schedule-multiple on
 (gdb) c
 Continuing.
 Connection 2 (extended-remote :9999) does not support multi-target resumption.

This is here later in the series instead of in the main multi-target
patch because it depends the previous patch, which added
process_stratum_target::connection_string().

gdb/ChangeLog:
2020-01-10  Pedro Alves  <palves@redhat.com>

	* infrun.c: Include "target-connection.h".
	(check_multi_target_resumption): New.
	(proceed): Call it.
	* target-connection.c (make_target_connection_string): Make
	extern.
	* target-connection.h (make_target_connection_string): Declare.
2020-01-10 20:06:14 +00:00

41 lines
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/* List of target connections for GDB.
Copyright (C) 2017-2020 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef TARGET_CONNECTION_H
#define TARGET_CONNECTION_H
#include <string>
struct process_stratum_target;
/* Add a process target to the connection list, if not already
added. */
void connection_list_add (process_stratum_target *t);
/* Remove a process target from the connection list. */
void connection_list_remove (process_stratum_target *t);
/* Make a target connection string for T. This is usually T's
shortname, but it includes the result of
process_stratum_target::connection_string() too if T supports
it. */
std::string make_target_connection_string (process_stratum_target *t);
#endif /* TARGET_CONNECTION_H */