| 1 | /* Abstract base class inherited by all process_stratum targets |
| 2 | |
| 3 | Copyright (C) 2018-2020 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #ifndef PROCESS_STRATUM_TARGET_H |
| 21 | #define PROCESS_STRATUM_TARGET_H |
| 22 | |
| 23 | #include "target.h" |
| 24 | |
| 25 | /* Abstract base class inherited by all process_stratum targets. */ |
| 26 | |
| 27 | class process_stratum_target : public target_ops |
| 28 | { |
| 29 | public: |
| 30 | ~process_stratum_target () override = 0; |
| 31 | |
| 32 | strata stratum () const final override { return process_stratum; } |
| 33 | |
| 34 | /* Return a string representation of this target's open connection. |
| 35 | This string is used to distinguish different instances of a given |
| 36 | target type. For example, when remote debugging, the target is |
| 37 | called "remote", but since we may have more than one remote |
| 38 | target open, connection_string() returns the connection serial |
| 39 | connection name, e.g., "localhost:10001", "192.168.0.1:20000", |
| 40 | etc. This string is shown in several places, e.g., in "info |
| 41 | connections" and "info inferiors". */ |
| 42 | virtual const char *connection_string () { return nullptr; } |
| 43 | |
| 44 | /* We must default these because they must be implemented by any |
| 45 | target that can run. */ |
| 46 | bool can_async_p () override { return false; } |
| 47 | bool supports_non_stop () override { return false; } |
| 48 | bool supports_disable_randomization () override { return false; } |
| 49 | |
| 50 | /* This default implementation returns the inferior's address |
| 51 | space. */ |
| 52 | struct address_space *thread_address_space (ptid_t ptid) override; |
| 53 | |
| 54 | /* This default implementation always returns target_gdbarch (). */ |
| 55 | struct gdbarch *thread_architecture (ptid_t ptid) override; |
| 56 | |
| 57 | /* Default implementations for process_stratum targets. Return true |
| 58 | if there's a selected inferior, false otherwise. */ |
| 59 | bool has_all_memory () override; |
| 60 | bool has_memory () override; |
| 61 | bool has_stack () override; |
| 62 | bool has_registers () override; |
| 63 | bool has_execution (inferior *inf) override; |
| 64 | |
| 65 | /* True if any thread is, or may be executing. We need to track |
| 66 | this separately because until we fully sync the thread list, we |
| 67 | won't know whether the target is fully stopped, even if we see |
| 68 | stop events for all known threads, because any of those threads |
| 69 | may have spawned new threads we haven't heard of yet. */ |
| 70 | bool threads_executing = false; |
| 71 | |
| 72 | /* The connection number. Visible in "info connections". */ |
| 73 | int connection_number = 0; |
| 74 | }; |
| 75 | |
| 76 | /* Downcast TARGET to process_stratum_target. */ |
| 77 | |
| 78 | static inline process_stratum_target * |
| 79 | as_process_stratum_target (target_ops *target) |
| 80 | { |
| 81 | gdb_assert (target->stratum () == process_stratum); |
| 82 | return static_cast<process_stratum_target *> (target); |
| 83 | } |
| 84 | |
| 85 | #endif /* !defined (PROCESS_STRATUM_TARGET_H) */ |