projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| e77fd269 DE |
1 | /* Simulator pseudo baseclass. |
| 2 | Copyright (C) 1997 Free Software Foundation, Inc. | |
| 3 | Contributed by Cygnus Support. | |
| 4 | ||
| 5 | This file is part of GDB, the GNU debugger. | |
| 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 2, or (at your option) | |
| 10 | 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 along | |
| 18 | with this program; if not, write to the Free Software Foundation, Inc., | |
| 19 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
| 20 | ||
| 21 | /* This file is meant to be included by sim-basics.h. */ | |
| 22 | ||
| 23 | #ifndef SIM_BASE_H | |
| 24 | #define SIM_BASE_H | |
| 25 | ||
| 26 | /* Global pointer to current state while sim_resume is running. | |
| 27 | On a machine with lots of registers, it might be possible to reserve | |
| 28 | one of them for current_state. However on a machine with few registers | |
| 29 | current_state can't permanently live in one and indirecting through it | |
| 30 | will be slower [in which case one can have sim_resume set globals from | |
| 31 | current_state for faster access]. | |
| 32 | If CURRENT_STATE_REG is defined, it means current_state is living in | |
| 33 | a global register. */ | |
| 34 | ||
| 35 | #ifdef CURRENT_STATE_REG | |
| 36 | /* FIXME: wip */ | |
| 37 | #else | |
| 38 | extern struct sim_state *current_state; | |
| 39 | #endif | |
| 40 | ||
| 41 | /* Simulator state pseudo base-class. | |
| 42 | Each simulator is required to have a sim-main.h file that includes | |
| 43 | sim-basics.h and defines struct sim_state to be: | |
| 44 | ||
| 45 | struct sim_state { | |
| 46 | struct sim_state_base base; | |
| 47 | ... simulator specific members ... | |
| 48 | }; | |
| 49 | */ | |
| 50 | ||
| 51 | struct sim_state_base { | |
| 52 | /* Marker for those wanting to do sanity checks. */ | |
| 53 | int magic; | |
| 54 | #define SIM_MAGIC_NUMBER 0x4242 | |
| 55 | #define STATE_MAGIC(sd) ((sd)->base.magic) | |
| 56 | ||
| 57 | /* Simulator's argv[0]. */ | |
| 58 | const char *my_name; | |
| 59 | #define STATE_MY_NAME(sd) ((sd)->base.my_name) | |
| 60 | ||
| 61 | /* Who opened the simulator. */ | |
| 62 | SIM_OPEN_KIND open_kind; | |
| 63 | #define STATE_OPEN_KIND(sd) ((sd)->base.open_kind) | |
| 64 | ||
| 65 | /* The host callbacks. */ | |
| 66 | struct host_callback_struct *callback; | |
| 67 | #define STATE_CALLBACK(sd) ((sd)->base.callback) | |
| 68 | ||
| 69 | #if 0 /* FIXME: Not ready yet. */ | |
| 70 | /* Stuff defined in sim-config.h. */ | |
| 71 | struct sim_config config; | |
| 72 | #define STATE_CONFIG(sd) ((sd)->base.config) | |
| 73 | #endif | |
| 74 | }; | |
| 75 | ||
| 76 | /* Functions for allocating/freeing a sim_state. */ | |
| 77 | SIM_DESC sim_state_alloc PARAMS ((void)); | |
| 78 | void sim_state_free PARAMS ((SIM_DESC)); | |
| 79 | ||
| 80 | #endif /* SIM_BASE_H */ |