introduce the target stack
there's a huge hack in multi_target_compatible
2014-07-29 Tom Tromey <tromey@redhat.com>
* target-delegates.c: Rebuild.
* make-target-delegates (write_debugmethod): Update for change to
debug_target.
* progspace.c (add_program_space): Acquire a reference to the
target stack.
(release_program_space): Release reference to the program space.
(set_current_program_space): Set the target stack.
* progspace.h (struct program_space) <target_stack>: New field.
* target.c (target_ops_ptr): New typedef.
(struct target_stack): New.
(target_stack): Change type.
(current_target): Update comment.
(update_current_target): Update.
(multi_target_compatible, ensure_multi_target_ok): New functions.
(push_target): Update. Add multi-target check.
(unpush_target, pop_all_targets_above, target_is_pushed)
(target_info, target_require_runnable): Update.
(target_stack_set): New global.
(currently_multi_target, target_stack_incref, target_stack_decref)
(target_stack_set_current, new_target_stack): New functions.
(maintenance_print_target_stack): Update.
(initialize_targets): Initialize target_stack_set, target_stack.
Update.
(target_stack_id): New function.
(next_available_target_id): New global.
(print_one_target_stack): New function.
(maintenance_print_target_stack): Move earlier. Rewrite.
(debug_target): Remove.
(debug_to_open, setup_target_debug): Update.
* target.h (target_stack_incref, target_stack_decref)
(target_stack_set_current, new_target_stack, target_stack_id):
Declare.
* testsuite/gdb.base/auto-connect-native-target.exp: Update.
7 files changed
