sim/common/sim-module.h

   1 /* Module support.
   2    Copyright (C) 1996-2021 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 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 /* This file is intended to be included by sim-base.h.  */
  21
  22 #ifndef SIM_MODULES_H
  23 #define SIM_MODULES_H
  24
  25 /* Modules are addons to the simulator that perform a specific function
  26    (e.g. tracing, profiling, memory subsystem, etc.).  Some modules are
  27    builtin, and others are added at configure time.  The intent is to
  28    provide a uniform framework for all of the pieces that make up the
  29    simulator.
  30
  31    TODO: Add facilities for saving/restoring state to/from a file.  */
  32
  33 #include "gdb/remote-sim.h"
  34
  35 /* Various function types.  */
  36
  37 typedef SIM_RC (MODULE_INSTALL_FN) (SIM_DESC);
  38 typedef SIM_RC (MODULE_INIT_FN) (SIM_DESC);
  39 typedef SIM_RC (MODULE_RESUME_FN) (SIM_DESC);
  40 typedef SIM_RC (MODULE_SUSPEND_FN) (SIM_DESC);
  41 typedef void   (MODULE_UNINSTALL_FN) (SIM_DESC);
  42 typedef void   (MODULE_INFO_FN) (SIM_DESC, int);
  43
  44
  45 /* Lists of installed handlers.  */
  46
  47 typedef struct module_init_list {
  48   struct module_init_list *next;
  49   MODULE_INIT_FN *fn;
  50 } MODULE_INIT_LIST;
  51
  52 typedef struct module_resume_list {
  53   struct module_resume_list *next;
  54   MODULE_RESUME_FN *fn;
  55 } MODULE_RESUME_LIST;
  56
  57 typedef struct module_suspend_list {
  58   struct module_suspend_list *next;
  59   MODULE_SUSPEND_FN *fn;
  60 } MODULE_SUSPEND_LIST;
  61
  62 typedef struct module_uninstall_list {
  63   struct module_uninstall_list *next;
  64   MODULE_UNINSTALL_FN *fn;
  65 } MODULE_UNINSTALL_LIST;
  66
  67 typedef struct module_info_list {
  68   struct module_info_list *next;
  69   MODULE_INFO_FN *fn;
  70 } MODULE_INFO_LIST;
  71
  72
  73 /* Functions to register module with various handler lists */
  74
  75 SIM_RC sim_module_install (SIM_DESC);
  76 void sim_module_uninstall (SIM_DESC);
  77 void sim_module_add_init_fn (SIM_DESC sd, MODULE_INIT_FN fn);
  78 void sim_module_add_resume_fn (SIM_DESC sd, MODULE_RESUME_FN fn);
  79 void sim_module_add_suspend_fn (SIM_DESC sd, MODULE_SUSPEND_FN fn);
  80 void sim_module_add_uninstall_fn (SIM_DESC sd, MODULE_UNINSTALL_FN fn);
  81 void sim_module_add_info_fn (SIM_DESC sd, MODULE_INFO_FN fn);
  82
  83
  84 /* Initialize installed modules before argument processing.
  85    Called by sim_open.  */
  86 SIM_RC sim_pre_argv_init (SIM_DESC sd, const char *myname);
  87
  88 /* Initialize installed modules after argument processing.
  89    Called by sim_open.  */
  90 SIM_RC sim_post_argv_init (SIM_DESC sd);
  91
  92 /* Re-initialize the module.  Called by sim_create_inferior. */
  93 SIM_RC sim_module_init (SIM_DESC sd);
  94
  95 /* Suspend/resume modules.  Called by sim_run or sim_resume */
  96 SIM_RC sim_module_suspend (SIM_DESC sd);
  97 SIM_RC sim_module_resume (SIM_DESC sd);
  98
  99 /* Report general information on module */
 100 void sim_module_info (SIM_DESC sd, int verbose);
 101
 102
 103 /* Module private data */
 104
 105 struct module_list {
 106
 107   /* List of installed module `init' handlers */
 108   MODULE_INIT_LIST *init_list;
 109
 110   /* List of installed module `uninstall' handlers.  */
 111   MODULE_UNINSTALL_LIST *uninstall_list;
 112
 113   /* List of installed module `resume' handlers.  */
 114   MODULE_RESUME_LIST *resume_list;
 115
 116   /* List of installed module `suspend' handlers.  */
 117   MODULE_SUSPEND_LIST *suspend_list;
 118
 119   /* List of installed module `info' handlers.  */
 120   MODULE_INFO_LIST *info_list;
 121
 122 };
 123
 124
 125 #endif /* SIM_MODULES_H */