sim/common/sim-module.c

   1 /* Module support.
   2    Copyright (C) 1996, 1997, 1998 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 #include "sim-main.h"
  22 #include "sim-io.h"
  23 #include "sim-options.h"
  24 #include "sim-assert.h"
  25
  26 #if WITH_HW
  27 #include "sim-hw.h"
  28 #endif
  29
  30 #include "libiberty.h"
  31
  32 /* List of all modules.  */
  33 static MODULE_INSTALL_FN * const modules[] = {
  34   standard_install,
  35   sim_events_install,
  36 #if WITH_ENGINE
  37   sim_engine_install,
  38 #endif
  39 #if WITH_TRACE
  40   trace_install,
  41 #endif
  42 #if WITH_PROFILE
  43   profile_install,
  44 #endif
  45   sim_core_install,
  46 #ifndef SIM_HAVE_FLATMEM
  47   /* FIXME: should handle flatmem as well FLATMEM */
  48   sim_memopt_install,
  49 #endif
  50 #if WITH_WATCHPOINTS
  51   sim_watchpoint_install,
  52 #endif
  53 #ifdef SIM_HAVE_MODEL
  54   sim_model_install,
  55 #endif
  56 #if WITH_SCACHE
  57   scache_install,
  58 #endif
  59 #ifdef SIM_HAVE_BREAKPOINTS
  60   sim_break_install,
  61 #endif
  62 #if WITH_HW
  63   sim_hw_install,
  64 #endif
  65   /* Configured in [simulator specific] additional modules.  */
  66 #ifdef MODULE_LIST
  67   MODULE_LIST
  68 #endif
  69   0
  70 };
  71 \f
  72 /* Functions called from sim_open.  */
  73
  74 /* Initialize common parts before argument processing.  */
  75
  76 SIM_RC
  77 sim_pre_argv_init (SIM_DESC sd, const char *myname)
  78 {
  79   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
  80   SIM_ASSERT (STATE_MODULES (sd) == NULL);
  81
  82   STATE_MY_NAME (sd) = myname + strlen (myname);
  83   while (STATE_MY_NAME (sd) > myname && STATE_MY_NAME (sd)[-1] != '/')
  84     --STATE_MY_NAME (sd);
  85
  86   /* Set the cpu names to default values.  */
  87   {
  88     int i;
  89     for (i = 0; i < MAX_NR_PROCESSORS; ++i)
  90       {
  91         char *name;
  92         asprintf (&name, "cpu%d", i);
  93         CPU_NAME (STATE_CPU (sd, i)) = name;
  94       }
  95   }
  96
  97   sim_config_default (sd);
  98
  99   /* Install all configured in modules.  */
 100   if (sim_module_install (sd) != SIM_RC_OK)
 101     return SIM_RC_FAIL;
 102
 103   return SIM_RC_OK;
 104 }
 105
 106 /* Initialize common parts after argument processing.  */
 107
 108 SIM_RC
 109 sim_post_argv_init (SIM_DESC sd)
 110 {
 111   int i;
 112   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
 113   SIM_ASSERT (STATE_MODULES (sd) != NULL);
 114
 115   /* Set the cpu->state backlinks for each cpu.  */
 116   for (i = 0; i < MAX_NR_PROCESSORS; ++i)
 117     {
 118       CPU_STATE (STATE_CPU (sd, i)) = sd;
 119       CPU_INDEX (STATE_CPU (sd, i)) = i;
 120     }
 121
 122   if (sim_module_init (sd) != SIM_RC_OK)
 123     return SIM_RC_FAIL;
 124
 125   return SIM_RC_OK;
 126 }
 127 \f
 128 /* Install all modules.
 129    If this fails, no modules are left installed.  */
 130
 131 SIM_RC
 132 sim_module_install (SIM_DESC sd)
 133 {
 134   MODULE_INSTALL_FN * const *modp;
 135
 136   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
 137   SIM_ASSERT (STATE_MODULES (sd) == NULL);
 138
 139   STATE_MODULES (sd) = ZALLOC (struct module_list);
 140   for (modp = modules; *modp != NULL; ++modp)
 141     {
 142       if ((*modp) (sd) != SIM_RC_OK)
 143         {
 144           sim_module_uninstall (sd);
 145           SIM_ASSERT (STATE_MODULES (sd) == NULL);
 146           return SIM_RC_FAIL;
 147         }
 148     }
 149   return SIM_RC_OK;
 150 }
 151
 152 /* Called after all modules have been installed and after argv
 153    has been processed.  */
 154
 155 SIM_RC
 156 sim_module_init (SIM_DESC sd)
 157 {
 158   struct module_list *modules = STATE_MODULES (sd);
 159   MODULE_INIT_LIST *modp;
 160
 161   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
 162   SIM_ASSERT (STATE_MODULES (sd) != NULL);
 163
 164   for (modp = modules->init_list; modp != NULL; modp = modp->next)
 165     {
 166       if ((*modp->fn) (sd) != SIM_RC_OK)
 167         return SIM_RC_FAIL;
 168     }
 169   return SIM_RC_OK;
 170 }
 171
 172 /* Called when ever the simulator is resumed */
 173
 174 SIM_RC
 175 sim_module_resume (SIM_DESC sd)
 176 {
 177   struct module_list *modules = STATE_MODULES (sd);
 178   MODULE_RESUME_LIST *modp;
 179
 180   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
 181   SIM_ASSERT (STATE_MODULES (sd) != NULL);
 182
 183   for (modp = modules->resume_list; modp != NULL; modp = modp->next)
 184     {
 185       if ((*modp->fn) (sd) != SIM_RC_OK)
 186         return SIM_RC_FAIL;
 187     }
 188   return SIM_RC_OK;
 189 }
 190
 191 /* Called when ever the simulator is suspended */
 192
 193 SIM_RC
 194 sim_module_suspend (SIM_DESC sd)
 195 {
 196   struct module_list *modules = STATE_MODULES (sd);
 197   MODULE_SUSPEND_LIST *modp;
 198
 199   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
 200   SIM_ASSERT (STATE_MODULES (sd) != NULL);
 201
 202   for (modp = modules->suspend_list; modp != NULL; modp = modp->next)
 203     {
 204       if ((*modp->fn) (sd) != SIM_RC_OK)
 205         return SIM_RC_FAIL;
 206     }
 207   return SIM_RC_OK;
 208 }
 209
 210 /* Uninstall installed modules, called by sim_close.  */
 211
 212 void
 213 sim_module_uninstall (SIM_DESC sd)
 214 {
 215   struct module_list *modules = STATE_MODULES (sd);
 216   MODULE_UNINSTALL_LIST *modp;
 217
 218   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
 219   SIM_ASSERT (STATE_MODULES (sd) != NULL);
 220
 221   /* Uninstall the modules.  */
 222   for (modp = modules->uninstall_list; modp != NULL; modp = modp->next)
 223     (*modp->fn) (sd);
 224
 225   /* clean-up init list */
 226   {
 227     MODULE_INIT_LIST *n, *d;
 228     for (d = modules->init_list; d != NULL; d = n)
 229       {
 230         n = d->next;
 231         zfree (d);
 232       }
 233   }
 234
 235   /* clean-up resume list */
 236   {
 237     MODULE_RESUME_LIST *n, *d;
 238     for (d = modules->resume_list; d != NULL; d = n)
 239       {
 240         n = d->next;
 241         zfree (d);
 242       }
 243   }
 244
 245   /* clean-up suspend list */
 246   {
 247     MODULE_SUSPEND_LIST *n, *d;
 248     for (d = modules->suspend_list; d != NULL; d = n)
 249       {
 250         n = d->next;
 251         zfree (d);
 252       }
 253   }
 254
 255   /* clean-up uninstall list */
 256   {
 257     MODULE_UNINSTALL_LIST *n, *d;
 258     for (d = modules->uninstall_list; d != NULL; d = n)
 259       {
 260         n = d->next;
 261         zfree (d);
 262       }
 263   }
 264
 265   /* clean-up info list */
 266   {
 267     MODULE_INFO_LIST *n, *d;
 268     for (d = modules->info_list; d != NULL; d = n)
 269       {
 270         n = d->next;
 271         zfree (d);
 272       }
 273   }
 274
 275   zfree (modules);
 276   STATE_MODULES (sd) = NULL;
 277 }
 278
 279 /* Called when ever simulator info is needed */
 280
 281 void
 282 sim_module_info (SIM_DESC sd, int verbose)
 283 {
 284   struct module_list *modules = STATE_MODULES (sd);
 285   MODULE_INFO_LIST *modp;
 286
 287   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
 288   SIM_ASSERT (STATE_MODULES (sd) != NULL);
 289
 290   for (modp = modules->info_list; modp != NULL; modp = modp->next)
 291     {
 292       (*modp->fn) (sd, verbose);
 293     }
 294 }
 295 \f
 296 /* Add FN to the init handler list.
 297    init in the same order as the install. */
 298
 299 void
 300 sim_module_add_init_fn (SIM_DESC sd, MODULE_INIT_FN fn)
 301 {
 302   struct module_list *modules = STATE_MODULES (sd);
 303   MODULE_INIT_LIST *l = ZALLOC (MODULE_INIT_LIST);
 304   MODULE_INIT_LIST **last;
 305
 306   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
 307   SIM_ASSERT (STATE_MODULES (sd) != NULL);
 308
 309   last = &modules->init_list;
 310   while (*last != NULL)
 311     last = &((*last)->next);
 312
 313   l->fn = fn;
 314   l->next = NULL;
 315   *last = l;
 316 }
 317
 318 /* Add FN to the resume handler list.
 319    resume in the same order as the install. */
 320
 321 void
 322 sim_module_add_resume_fn (SIM_DESC sd, MODULE_RESUME_FN fn)
 323 {
 324   struct module_list *modules = STATE_MODULES (sd);
 325   MODULE_RESUME_LIST *l = ZALLOC (MODULE_RESUME_LIST);
 326   MODULE_RESUME_LIST **last;
 327
 328   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
 329   SIM_ASSERT (STATE_MODULES (sd) != NULL);
 330
 331   last = &modules->resume_list;
 332   while (*last != NULL)
 333     last = &((*last)->next);
 334
 335   l->fn = fn;
 336   l->next = NULL;
 337   *last = l;
 338 }
 339
 340 /* Add FN to the init handler list.
 341    suspend in the reverse order to install. */
 342
 343 void
 344 sim_module_add_suspend_fn (SIM_DESC sd, MODULE_SUSPEND_FN fn)
 345 {
 346   struct module_list *modules = STATE_MODULES (sd);
 347   MODULE_SUSPEND_LIST *l = ZALLOC (MODULE_SUSPEND_LIST);
 348   MODULE_SUSPEND_LIST **last;
 349
 350   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
 351   SIM_ASSERT (STATE_MODULES (sd) != NULL);
 352
 353   last = &modules->suspend_list;
 354   while (*last != NULL)
 355     last = &((*last)->next);
 356
 357   l->fn = fn;
 358   l->next = modules->suspend_list;
 359   modules->suspend_list = l;
 360 }
 361
 362 /* Add FN to the uninstall handler list.
 363    Uninstall in reverse order to install.  */
 364
 365 void
 366 sim_module_add_uninstall_fn (SIM_DESC sd, MODULE_UNINSTALL_FN fn)
 367 {
 368   struct module_list *modules = STATE_MODULES (sd);
 369   MODULE_UNINSTALL_LIST *l = ZALLOC (MODULE_UNINSTALL_LIST);
 370
 371   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
 372   SIM_ASSERT (STATE_MODULES (sd) != NULL);
 373
 374   l->fn = fn;
 375   l->next = modules->uninstall_list;
 376   modules->uninstall_list = l;
 377 }
 378
 379 /* Add FN to the info handler list.
 380    Report info in the same order as the install. */
 381
 382 void
 383 sim_module_add_info_fn (SIM_DESC sd, MODULE_INFO_FN fn)
 384 {
 385   struct module_list *modules = STATE_MODULES (sd);
 386   MODULE_INFO_LIST *l = ZALLOC (MODULE_INFO_LIST);
 387   MODULE_INFO_LIST **last;
 388
 389   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
 390   SIM_ASSERT (STATE_MODULES (sd) != NULL);
 391
 392   last = &modules->info_list;
 393   while (*last != NULL)
 394     last = &((*last)->next);
 395
 396   l->fn = fn;
 397   l->next = NULL;
 398   *last = l;
 399 }