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- /* Copyright (C) 2012-2022 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/>. */
- #include "defs.h"
- #include "command.h"
- #include "gdbcmd.h"
- #include "target.h"
- #include "gdbsupport/agent.h"
- #include "observable.h"
- #include "objfiles.h"
- /* Enum strings for "set|show agent". */
- static const char can_use_agent_on[] = "on";
- static const char can_use_agent_off[] = "off";
- static const char * const can_use_agent_enum[] =
- {
- can_use_agent_on,
- can_use_agent_off,
- NULL,
- };
- static const char *can_use_agent = can_use_agent_off;
- static void
- show_can_use_agent (struct ui_file *file, int from_tty,
- struct cmd_list_element *c, const char *value)
- {
- gdb_printf (file,
- _("Debugger's willingness to use agent in inferior "
- "as a helper is %s.\n"), value);
- }
- static void
- set_can_use_agent (const char *args, int from_tty, struct cmd_list_element *c)
- {
- bool can_use = (can_use_agent == can_use_agent_on);
- if (can_use && !agent_loaded_p ())
- {
- /* Since the setting was off, we may not have observed the objfiles and
- therefore not looked up the required symbols. Do so now. */
- for (objfile *objfile : current_program_space->objfiles ())
- if (agent_look_up_symbols (objfile) == 0)
- break;
- }
- if (target_use_agent (can_use) == 0)
- /* Something wrong during setting, set flag to default value. */
- can_use_agent = can_use_agent_off;
- }
- static void
- agent_new_objfile (struct objfile *objfile)
- {
- if (objfile == NULL || agent_loaded_p ())
- return;
- if (can_use_agent == can_use_agent_off)
- return;
- agent_look_up_symbols (objfile);
- }
- void _initialize_agent ();
- void
- _initialize_agent ()
- {
- gdb::observers::new_objfile.attach (agent_new_objfile,
- "agent");
- add_setshow_enum_cmd ("agent", class_run,
- can_use_agent_enum,
- &can_use_agent, _("\
- Set debugger's willingness to use agent as a helper."), _("\
- Show debugger's willingness to use agent as a helper."), _("\
- If on, GDB will delegate some of the debugging operations to the\n\
- agent, if the target supports it. This will speed up those\n\
- operations that are supported by the agent.\n\
- If off, GDB will not use agent, even if such is supported by the\n\
- target."),
- set_can_use_agent,
- show_can_use_agent,
- &setlist, &showlist);
- }
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