gdb/mac-nat.c

   1 /* Target-vector operations for controlling Mac applications, for GDB.
   2    Copyright (C) 1995 Free Software Foundation, Inc.
   3    Written by Stan Shebs.  Contributed by Cygnus Support.
   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 2 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 eve nthe 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, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 /* Note that because all the available Mac compilers are ANSI or very
  23    close, and this is a native-only file, the code may be purely ANSI.  */
  24
  25 #include "defs.h"
  26 #include "frame.h"              /* required by inferior.h */
  27 #include "inferior.h"
  28 #include "target.h"
  29 #include "wait.h"
  30 #include "gdbcore.h"
  31 #include "command.h"
  32 #include <signal.h>
  33 #include <sys/types.h>
  34 #include <fcntl.h>
  35 #include "buildsym.h"
  36 #include "gdb_string.h"
  37 #include "gdbthread.h"
  38 #include "gdbcmd.h"
  39
  40 #include <Processes.h>
  41
  42 /* We call the functions "child_..." rather than "mac_..." so no one
  43    is tempted to try to link this with other native-only code.  */
  44
  45 /* Forward declaration */
  46
  47 extern struct target_ops child_ops;
  48
  49 static void child_stop PARAMS ((void));
  50
  51 static void
  52 child_fetch_inferior_registers (int r)
  53 {
  54   if (r < 0)
  55     {
  56       for (r = 0; r < NUM_REGS; r++)
  57         child_fetch_inferior_registers (r);
  58     }
  59   else
  60     {
  61       supply_register (r, 0);
  62     }
  63 }
  64
  65 static void
  66 child_store_inferior_registers (int r)
  67 {
  68   if (r < 0)
  69     {
  70       for (r = 0; r < NUM_REGS; r++)
  71         child_store_inferior_registers (r);
  72     }
  73   else
  74     {
  75       read_register_gen (r, 0);
  76     }
  77 }
  78
  79 static int
  80 child_wait (int pid, struct target_waitstatus *ourstatus)
  81 {
  82 }
  83
  84 /* Attach to process PID, then initialize for debugging it.  */
  85
  86 static void
  87 child_attach (args, from_tty)
  88      char *args;
  89      int from_tty;
  90 {
  91   ProcessSerialNumber psn;
  92   ProcessInfoRec inforec;
  93   Str31 name;
  94   FSSpecPtr fsspec;
  95   OSType code;
  96   int pid;
  97   char *exec_file;
  98
  99   if (!args)
 100     error_no_arg ("process-id to attach");
 101
 102   pid = atoi (args);
 103
 104   psn.highLongOfPSN = 0;
 105   psn.lowLongOfPSN = pid;
 106
 107   inforec.processInfoLength = sizeof (ProcessInfoRec);
 108   inforec.processName = name;
 109   inforec.processAppSpec = fsspec;
 110
 111   if (GetProcessInformation (&psn, &inforec) == noErr)
 112     {
 113       if (from_tty)
 114         {
 115           exec_file = (char *) get_exec_file (0);
 116
 117           if (exec_file)
 118             printf_unfiltered ("Attaching to program `%s', %s\n", exec_file,
 119                                target_pid_to_str (pid));
 120           else
 121             printf_unfiltered ("Attaching to %s\n", target_pid_to_str (pid));
 122
 123           gdb_flush (gdb_stdout);
 124         }
 125       /* Do we need to do anything special? */
 126       attach_flag = 1;
 127       inferior_pid = pid;
 128       push_target (&child_ops);
 129     }
 130 }
 131
 132 static void
 133 child_detach (args, from_tty)
 134      char *args;
 135      int from_tty;
 136 {
 137   char *exec_file;
 138
 139   if (from_tty)
 140     {
 141       exec_file = get_exec_file (0);
 142       if (exec_file == 0)
 143         exec_file = "";
 144       printf_unfiltered ("Detaching from program: %s %s\n", exec_file,
 145                          target_pid_to_str (inferior_pid));
 146       gdb_flush (gdb_stdout);
 147     }
 148   inferior_pid = 0;
 149   unpush_target (&child_ops);
 150 }
 151
 152 /* Print status information about what we're accessing.  */
 153
 154 static void
 155 child_files_info (ignore)
 156      struct target_ops *ignore;
 157 {
 158   printf_unfiltered ("\tUsing the running image of %s %s.\n",
 159       attach_flag ? "attached" : "child", target_pid_to_str (inferior_pid));
 160 }
 161
 162 /* ARGSUSED */
 163 static void
 164 child_open (arg, from_tty)
 165      char *arg;
 166      int from_tty;
 167 {
 168   error ("Use the \"run\" command to start a Mac application.");
 169 }
 170
 171 /* Start an inferior Mac program and sets inferior_pid to its pid.
 172    EXEC_FILE is the file to run.
 173    ALLARGS is a string containing the arguments to the program.
 174    ENV is the environment vector to pass.  Errors reported with error().  */
 175
 176 static void
 177 child_create_inferior (exec_file, allargs, env)
 178      char *exec_file;
 179      char *allargs;
 180      char **env;
 181 {
 182   LaunchParamBlockRec launchparms;
 183   FSSpec fsspec;
 184   OSErr launch_err;
 185
 186   if (!exec_file)
 187     {
 188       error ("No executable specified, use `target exec'.\n");
 189     }
 190
 191   launchparms.launchBlockID = extendedBlock;
 192   launchparms.launchEPBLength = extendedBlockLen;
 193   launchparms.launchFileFlags = 0;
 194   launchparms.launchControlFlags = launchContinue | launchNoFileFlags;
 195   fsspec.vRefNum = 0;
 196   fsspec.parID = 0;
 197   strcpy (fsspec.name + 1, exec_file);
 198   fsspec.name[0] = strlen (exec_file);
 199   launchparms.launchAppSpec = &fsspec;
 200   launchparms.launchAppParameters = nil;
 201
 202   launch_err = LaunchApplication (&launchparms);
 203
 204   if (launch_err == 999 /*memFullErr */ )
 205     {
 206       error ("Not enough memory to launch %s\n", exec_file);
 207     }
 208   else if (launch_err != noErr)
 209     {
 210       error ("Error launching %s, code %d\n", exec_file, launch_err);
 211     }
 212
 213   inferior_pid = launchparms.launchProcessSN.lowLongOfPSN;
 214   /* FIXME be sure that high long of PSN is 0 */
 215
 216   push_target (&child_ops);
 217   init_wait_for_inferior ();
 218   clear_proceed_status ();
 219
 220 /*  proceed ((CORE_ADDR) - 1, TARGET_SIGNAL_0, 0);  */
 221 }
 222
 223 static void
 224 child_mourn_inferior ()
 225 {
 226   unpush_target (&child_ops);
 227   generic_mourn_inferior ();
 228 }
 229
 230 static void
 231 child_stop ()
 232 {
 233 }
 234
 235 int
 236 child_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len,
 237                    int write, struct target_ops *target)
 238 {
 239   int i;
 240
 241   for (i = 0; i < len; ++i)
 242     {
 243       if (write)
 244         {
 245           ((char *) memaddr)[i] = myaddr[i];
 246         }
 247       else
 248         {
 249           myaddr[i] = ((char *) memaddr)[i];
 250         }
 251     }
 252   return len;
 253 }
 254
 255 void
 256 child_kill_inferior (void)
 257 {
 258 }
 259
 260 void
 261 child_resume (int pid, int step, enum target_signal signal)
 262 {
 263 }
 264
 265 static void
 266 child_prepare_to_store ()
 267 {
 268   /* Do nothing, since we can store individual regs */
 269 }
 270
 271 static int
 272 child_can_run ()
 273 {
 274   return 1;
 275 }
 276
 277 static void
 278 child_close ()
 279 {
 280 }
 281
 282 static void
 283 info_proc (args, from_tty)
 284      char *args;
 285      int from_tty;
 286 {
 287   ProcessSerialNumber psn;
 288   ProcessInfoRec inforec;
 289   Str31 name;
 290   FSSpecPtr fsspec;
 291   OSType code;
 292
 293   /* Eventually use args, but not right now. */
 294
 295   psn.highLongOfPSN = 0;
 296   psn.lowLongOfPSN = kNoProcess;
 297
 298   inforec.processInfoLength = sizeof (ProcessInfoRec);
 299   inforec.processName = name;
 300   inforec.processAppSpec = fsspec;
 301
 302   printf_filtered ("Process Name                     Sgnt Type    PSN   Loc Size FreeMem Time\n");
 303
 304   while (GetNextProcess (&psn) == noErr)
 305     {
 306       if (GetProcessInformation (&psn, &inforec) == noErr)
 307         {
 308           name[name[0] + 1] = '\0';
 309           printf_filtered ("%-32.32s", name + 1);
 310           code = inforec.processSignature;
 311           printf_filtered (" %c%c%c%c",
 312                            (code >> 24) & 0xff,
 313                            (code >> 16) & 0xff,
 314                            (code >> 8) & 0xff,
 315                            (code >> 0) & 0xff);
 316           code = inforec.processType;
 317           printf_filtered (" %c%c%c%c",
 318                            (code >> 24) & 0xff,
 319                            (code >> 16) & 0xff,
 320                            (code >> 8) & 0xff,
 321                            (code >> 0) & 0xff);
 322           if (psn.highLongOfPSN == 0)
 323             printf_filtered (" %9d", psn.lowLongOfPSN);
 324           else
 325             printf_filtered (" %9d,%9d\n",
 326                              psn.highLongOfPSN, psn.lowLongOfPSN);
 327           printf_filtered (" 0x%x", inforec.processLocation);
 328           printf_filtered (" %9d", inforec.processSize);
 329           printf_filtered (" %9d", inforec.processFreeMem);
 330           printf_filtered (" %9d", inforec.processActiveTime);
 331           printf_filtered ("\n");
 332         }
 333     }
 334 }
 335
 336 struct target_ops child_ops;
 337
 338 static void
 339 init_child_ops (void)
 340 {
 341   child_ops.to_shortname = "mac";
 342   child_ops.to_longname = "MacOS application";
 343   child_ops.to_doc = "MacOS application (started by the \"run\" command).";
 344   child_ops.to_open = child_open;
 345   child_ops.to_close = child_close;
 346   child_ops.to_attach = child_attach;
 347   child_ops.to_post_attach = NULL;
 348   child_ops.to_require_attach = NULL;   /* to_require_attach */
 349   child_ops.to_detach = child_detach;
 350   child_ops.to_require_detach = NULL;   /* to_require_detach */
 351   child_ops.to_resume = child_resume;
 352   child_ops.to_wait = child_wait;
 353   child_ops.to_post_wait = NULL;        /* to_post_wait */
 354   child_ops.to_fetch_registers = child_fetch_inferior_registers;
 355   child_ops.to_store_registers = child_store_inferior_registers;
 356   child_ops.to_prepare_to_store = child_prepare_to_store;
 357   child_ops.to_xfer_memory = child_xfer_memory;
 358   child_ops.to_files_info = child_files_info;
 359   child_ops.to_insert_breakpoint = memory_insert_breakpoint;
 360   child_ops.to_remove_breakpoint = memory_remove_breakpoint;
 361   child_ops.to_terminal_init = 0;
 362   child_ops.to_terminal_inferior = 0;
 363   child_ops.to_terminal_ours_for_output = 0;
 364   child_ops.to_terminal_ours = 0;
 365   child_ops.to_terminal_info = 0;
 366   child_ops.to_kill = child_kill_inferior;
 367   child_ops.to_load = 0;
 368   child_ops.to_lookup_symbol = 0;
 369   child_ops.to_create_inferior = child_create_inferior;
 370   child_ops.to_post_startup_inferior = NULL;    /* to_post_startup_inferior */
 371   child_ops.to_acknowledge_created_inferior = NULL;     /* to_acknowledge_created_inferior */
 372   child_ops.to_clone_and_follow_inferior = NULL;        /* to_clone_and_follow_inferior */
 373   child_ops.to_post_follow_inferior_by_clone = NULL;    /* to_post_follow_inferior_by_clone */
 374   child_ops.to_insert_fork_catchpoint = NULL;
 375   child_ops.to_remove_fork_catchpoint = NULL;
 376   child_ops.to_insert_vfork_catchpoint = NULL;
 377   child_ops.to_remove_vfork_catchpoint = NULL;
 378   child_ops.to_has_forked = NULL;       /* to_has_forked */
 379   child_ops.to_has_vforked = NULL;      /* to_has_vforked */
 380   child_ops.to_can_follow_vfork_prior_to_exec = NULL;
 381   child_ops.to_post_follow_vfork = NULL;        /* to_post_follow_vfork */
 382   child_ops.to_insert_exec_catchpoint = NULL;
 383   child_ops.to_remove_exec_catchpoint = NULL;
 384   child_ops.to_has_execd = NULL;
 385   child_ops.to_reported_exec_events_per_exec_call = NULL;
 386   child_ops.to_has_exited = NULL;
 387   child_ops.to_mourn_inferior = child_mourn_inferior;
 388   child_ops.to_can_run = child_can_run;
 389   child_ops.to_notice_signals = 0;
 390   child_ops.to_thread_alive = 0;
 391   child_ops.to_stop = child_stop;
 392   child_ops.to_pid_to_exec_file = NULL;         /* to_pid_to_exec_file */
 393   child_ops.to_core_file_to_sym_file = NULL;
 394   child_ops.to_stratum = process_stratum;
 395   child_ops.DONT_USE = 0;
 396   child_ops.to_has_all_memory = 1;
 397   child_ops.to_has_memory = 1;
 398   child_ops.to_has_stack = 1;
 399   child_ops.to_has_registers = 1;
 400   child_ops.to_has_execution = 1;
 401   child_ops.to_sections = 0;
 402   child_ops.to_sections_end = 0;
 403   child_ops.to_magic = OPS_MAGIC;
 404 };
 405
 406 void
 407 _initialize_mac_nat ()
 408 {
 409   init_child_ops ();
 410
 411   add_info ("proc", info_proc,
 412             "Show information about processes.");
 413 }