gdb/sh3-rom.c

   1 /* Remote target glue for the Hitachi SH-3 ROM monitor.
   2    Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001
   3    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 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 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, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #include "defs.h"
  23 #include "gdbcore.h"
  24 #include "target.h"
  25 #include "monitor.h"
  26 #include "serial.h"
  27 #include "srec.h"
  28 #include "arch-utils.h"
  29 #include "regcache.h"
  30 #include "gdb_string.h"
  31
  32 #include "sh-tdep.h"
  33
  34 static struct serial *parallel;
  35 static int parallel_in_use;
  36
  37 static void sh3_open (char *args, int from_tty);
  38
  39 static void
  40 sh3_supply_register (char *regname, int regnamelen, char *val, int vallen)
  41 {
  42   int numregs;
  43   int regno;
  44
  45   numregs = 1;
  46   regno = -1;
  47
  48   if (regnamelen == 2)
  49     {
  50       switch (regname[0])
  51         {
  52         case 'S':
  53           if (regname[1] == 'R')
  54             regno = SR_REGNUM;
  55           break;
  56         case 'P':
  57           if (regname[1] == 'C')
  58             regno = PC_REGNUM;
  59           else if (regname[1] == 'R')
  60             regno = PR_REGNUM;
  61           break;
  62         }
  63     }
  64   else if (regnamelen == 3)
  65     {
  66       switch (regname[0])
  67         {
  68         case 'G':
  69         case 'V':
  70           if (regname[1] == 'B' && regname[2] == 'R')
  71             {
  72               if (regname[0] == 'G')
  73                 regno = VBR_REGNUM;
  74               else
  75                 regno = GBR_REGNUM;
  76             }
  77           break;
  78         case 'S':
  79           if (regname[1] == 'S' && regname[2] == 'R')
  80             regno = gdbarch_tdep (current_gdbarch)->SSR_REGNUM;
  81           else if (regname[1] == 'P' && regname[2] == 'C')
  82             regno = gdbarch_tdep (current_gdbarch)->SPC_REGNUM;
  83           break;
  84         }
  85     }
  86   else if (regnamelen == 4)
  87     {
  88       switch (regname[0])
  89         {
  90         case 'M':
  91           if (regname[1] == 'A' && regname[2] == 'C')
  92             {
  93               if (regname[3] == 'H')
  94                 regno = MACH_REGNUM;
  95               else if (regname[3] == 'L')
  96                 regno = MACL_REGNUM;
  97             }
  98           break;
  99         case 'R':
 100           if (regname[1] == '0' && regname[2] == '-' && regname[3] == '7')
 101             {
 102               regno = R0_REGNUM;
 103               numregs = 8;
 104             }
 105         }
 106     }
 107   else if (regnamelen == 5)
 108     {
 109       if (regname[1] == '8' && regname[2] == '-' && regname[3] == '1'
 110           && regname[4] == '5')
 111         {
 112           regno = R0_REGNUM + 8;
 113           numregs = 8;
 114         }
 115     }
 116   else if (regnamelen == 17)
 117     {
 118     }
 119
 120   if (regno >= 0)
 121     while (numregs-- > 0)
 122       val = monitor_supply_register (regno++, val);
 123 }
 124
 125 static void
 126 sh3_load (struct serial *desc, char *file, int hashmark)
 127 {
 128   if (parallel_in_use)
 129     {
 130       monitor_printf ("pl;s\r");
 131       load_srec (parallel, file, 0, 80, SREC_ALL, hashmark, NULL);
 132       monitor_expect_prompt (NULL, 0);
 133     }
 134   else
 135     {
 136       monitor_printf ("il;s:x\r");
 137       monitor_expect ("\005", NULL, 0);         /* Look for ENQ */
 138       serial_write (desc, "\006", 1);   /* Send ACK */
 139       monitor_expect ("LO x\r", NULL, 0);       /* Look for filename */
 140
 141       load_srec (desc, file, 0, 80, SREC_ALL, hashmark, NULL);
 142
 143       monitor_expect ("\005", NULL, 0);         /* Look for ENQ */
 144       serial_write (desc, "\006", 1);   /* Send ACK */
 145       monitor_expect_prompt (NULL, 0);
 146     }
 147 }
 148
 149 /* This array of registers need to match the indexes used by GDB.
 150    This exists because the various ROM monitors use different strings
 151    than does GDB, and don't necessarily support all the registers
 152    either. So, typing "info reg sp" becomes a "r30".  */
 153
 154 static char *sh3_regnames[] =
 155 {
 156   "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7",
 157   "R8", "R9", "R10", "R11", "R12", "R13", "R14", "R15",
 158   "PC", "PR", "GBR", "VBR", "MACH", "MACL", "SR",
 159   NULL, NULL,
 160   NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 161   NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 162   "SSR", "SPC",
 163   "R0_BANK0", "R1_BANK0", "R2_BANK0", "R3_BANK0",
 164   "R4_BANK0", "R5_BANK0", "R6_BANK0", "R7_BANK0",
 165   "R0_BANK1", "R1_BANK1", "R2_BANK1", "R3_BANK1",
 166   "R4_BANK1", "R5_BANK1", "R6_BANK1", "R7_BANK1"
 167 };
 168
 169 static char *sh3e_regnames[] =
 170 {
 171   "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7",
 172   "R8", "R9", "R10", "R11", "R12", "R13", "R14", "R15",
 173   "PC", "PR", "GBR", "VBR", "MACH", "MACL", "SR",
 174   "FPUL", "FPSCR",
 175   "FR0", "FR1", "FR2", "FR3", "FR4", "FR5", "FR6", "FR7",
 176   "FR8", "FR9", "FR10", "FR11", "FR12", "FR13", "FR14", "FR15",
 177   "SSR", "SPC",
 178   "R0_BANK0", "R1_BANK0", "R2_BANK0", "R3_BANK0",
 179   "R4_BANK0", "R5_BANK0", "R6_BANK0", "R7_BANK0",
 180   "R0_BANK1", "R1_BANK1", "R2_BANK1", "R3_BANK1",
 181   "R4_BANK1", "R5_BANK1", "R6_BANK1", "R7_BANK1"
 182 };
 183
 184 /* Define the monitor command strings. Since these are passed directly
 185    through to a printf style function, we may include formatting
 186    strings. We also need a CR or LF on the end.  */
 187
 188 static struct target_ops sh3_ops, sh3e_ops;
 189
 190 static char *sh3_inits[] =
 191 {"\003", NULL};                 /* Exits sub-command mode & download cmds */
 192
 193 static struct monitor_ops sh3_cmds;
 194
 195 static void
 196 init_sh3_cmds (void)
 197 {
 198   sh3_cmds.flags = MO_CLR_BREAK_USES_ADDR | MO_GETMEM_READ_SINGLE;      /* flags */
 199   sh3_cmds.init = sh3_inits;    /* monitor init string */
 200   sh3_cmds.cont = "g\r";        /* continue command */
 201   sh3_cmds.step = "s\r";        /* single step */
 202   sh3_cmds.stop = "\003";       /* Interrupt program */
 203   sh3_cmds.set_break = "b %x\r";        /* set a breakpoint */
 204   sh3_cmds.clr_break = "b -%x\r";       /* clear a breakpoint */
 205   sh3_cmds.clr_all_break = "b -\r";     /* clear all breakpoints */
 206   sh3_cmds.fill = "f %x @%x %x\r";      /* fill (start len val) */
 207   sh3_cmds.setmem.cmdb = "m %x %x\r";   /* setmem.cmdb (addr, value) */
 208   sh3_cmds.setmem.cmdw = "m %x %x;w\r";         /* setmem.cmdw (addr, value) */
 209   sh3_cmds.setmem.cmdl = "m %x %x;l\r";         /* setmem.cmdl (addr, value) */
 210   sh3_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */
 211   sh3_cmds.setmem.resp_delim = NULL;    /* setreg.resp_delim */
 212   sh3_cmds.setmem.term = NULL;  /* setreg.term */
 213   sh3_cmds.setmem.term_cmd = NULL;      /* setreg.term_cmd */
 214   sh3_cmds.getmem.cmdb = "m %x\r";      /* getmem.cmdb (addr, len) */
 215   sh3_cmds.getmem.cmdw = "m %x;w\r";    /* getmem.cmdw (addr, len) */
 216   sh3_cmds.getmem.cmdl = "m %x;l\r";    /* getmem.cmdl (addr, len) */
 217   sh3_cmds.getmem.cmdll = NULL; /* getmem.cmdll (addr, len) */
 218   sh3_cmds.getmem.resp_delim = "^ [0-9A-F]+ ";  /* getmem.resp_delim */
 219   sh3_cmds.getmem.term = "? ";  /* getmem.term */
 220   sh3_cmds.getmem.term_cmd = ".\r";     /* getmem.term_cmd */
 221   sh3_cmds.setreg.cmd = ".%s %x\r";     /* setreg.cmd (name, value) */
 222   sh3_cmds.setreg.resp_delim = NULL;    /* setreg.resp_delim */
 223   sh3_cmds.setreg.term = NULL;  /* setreg.term */
 224   sh3_cmds.setreg.term_cmd = NULL;      /* setreg.term_cmd */
 225   sh3_cmds.getreg.cmd = ".%s\r";        /* getreg.cmd (name) */
 226   sh3_cmds.getreg.resp_delim = "=";     /* getreg.resp_delim */
 227   sh3_cmds.getreg.term = "? ";  /* getreg.term */
 228   sh3_cmds.getreg.term_cmd = ".\r";     /* getreg.term_cmd */
 229   sh3_cmds.dump_registers = "r\r";      /* dump_registers */
 230   sh3_cmds.register_pattern = "\\(\\w+\\)=\\([0-9a-fA-F]+\\( +[0-9a-fA-F]+\\b\\)*\\)";
 231   sh3_cmds.supply_register = sh3_supply_register;       /* supply_register */
 232   sh3_cmds.load_routine = sh3_load;     /* load_routine */
 233   sh3_cmds.load = NULL;         /* download command */
 234   sh3_cmds.loadresp = NULL;     /* Load response */
 235   sh3_cmds.prompt = "\n:";      /* monitor command prompt */
 236   sh3_cmds.line_term = "\r";    /* end-of-line terminator */
 237   sh3_cmds.cmd_end = ".\r";     /* optional command terminator */
 238   sh3_cmds.target = &sh3_ops;   /* target operations */
 239   sh3_cmds.stopbits = SERIAL_1_STOPBITS;        /* number of stop bits */
 240   sh3_cmds.regnames = sh3_regnames;     /* registers names */
 241   sh3_cmds.magic = MONITOR_OPS_MAGIC;   /* magic */
 242 }                               /* init_sh3_cmds */
 243
 244 /* This monitor structure is identical except for a couple slots, so
 245    we will fill it in from the base structure when needed.  */
 246
 247 static struct monitor_ops sh3e_cmds;
 248
 249 static void
 250 sh3_open (char *args, int from_tty)
 251 {
 252   char *serial_port_name = args;
 253   char *parallel_port_name = 0;
 254
 255   if (args)
 256     {
 257       char *cursor = serial_port_name = xstrdup (args);
 258
 259       while (*cursor && *cursor != ' ')
 260         cursor++;
 261
 262       if (*cursor)
 263         *cursor++ = 0;
 264
 265       while (*cursor == ' ')
 266         cursor++;
 267
 268       if (*cursor)
 269         parallel_port_name = cursor;
 270     }
 271
 272   monitor_open (serial_port_name, &sh3_cmds, from_tty);
 273
 274   if (parallel_port_name)
 275     {
 276       parallel = serial_open (parallel_port_name);
 277
 278       if (!parallel)
 279         perror_with_name ("Unable to open parallel port.");
 280
 281       parallel_in_use = 1;
 282     }
 283
 284   /* If we connected successfully, we know the processor is an SH3.  */
 285   set_architecture_from_arch_mach (bfd_arch_sh, bfd_mach_sh3);
 286 }
 287
 288
 289 static void
 290 sh3e_open (char *args, int from_tty)
 291 {
 292   char *serial_port_name = args;
 293   char *parallel_port_name = 0;
 294
 295   if (args)
 296     {
 297       char *cursor = serial_port_name = xstrdup (args);
 298
 299       while (*cursor && *cursor != ' ')
 300         cursor++;
 301
 302       if (*cursor)
 303         *cursor++ = 0;
 304
 305       while (*cursor == ' ')
 306         cursor++;
 307
 308       if (*cursor)
 309         parallel_port_name = cursor;
 310     }
 311
 312   /* Set up the SH-3E monitor commands structure.  */
 313
 314   memcpy (&sh3e_cmds, &sh3_cmds, sizeof (struct monitor_ops));
 315
 316   sh3e_cmds.target = &sh3e_ops;
 317   sh3e_cmds.regnames = sh3e_regnames;
 318
 319   monitor_open (serial_port_name, &sh3e_cmds, from_tty);
 320
 321   if (parallel_port_name)
 322     {
 323       parallel = serial_open (parallel_port_name);
 324
 325       if (!parallel)
 326         perror_with_name ("Unable to open parallel port.");
 327
 328       parallel_in_use = 1;
 329     }
 330
 331   /* If we connected successfully, we know the processor is an SH3E.  */
 332   set_architecture_from_arch_mach (bfd_arch_sh, bfd_mach_sh3);
 333 }
 334
 335 static void
 336 sh3_close (int quitting)
 337 {
 338   monitor_close (quitting);
 339   if (parallel_in_use)
 340     {
 341       serial_close (parallel);
 342       parallel_in_use = 0;
 343     }
 344 }
 345
 346 extern initialize_file_ftype _initialize_sh3_rom; /* -Wmissing-prototypes */
 347
 348 void
 349 _initialize_sh3_rom (void)
 350 {
 351   init_sh3_cmds ();
 352   init_monitor_ops (&sh3_ops);
 353
 354   sh3_ops.to_shortname = "sh3";
 355   sh3_ops.to_longname = "Hitachi SH-3 rom monitor";
 356
 357   sh3_ops.to_doc =
 358   /* We can download through the parallel port too. */
 359     "Debug on a Hitachi eval board running the SH-3E rom monitor.\n"
 360     "Specify the serial device it is connected to.\n"
 361     "If you want to use the parallel port to download to it, specify that\n"
 362     "as an additional second argument.";
 363
 364   sh3_ops.to_open = sh3_open;
 365   sh3_ops.to_close = sh3_close;
 366
 367   add_target (&sh3_ops);
 368
 369   /* Setup the SH3e, which has float registers.  */
 370
 371   init_monitor_ops (&sh3e_ops);
 372
 373   sh3e_ops.to_shortname = "sh3e";
 374   sh3e_ops.to_longname = "Hitachi SH-3E rom monitor";
 375
 376   sh3e_ops.to_doc =
 377   /* We can download through the parallel port too. */
 378     "Debug on a Hitachi eval board running the SH-3E rom monitor.\n"
 379     "Specify the serial device it is connected to.\n"
 380     "If you want to use the parallel port to download to it, specify that\n"
 381     "as an additional second argument.";
 382
 383   sh3e_ops.to_open = sh3e_open;
 384   sh3e_ops.to_close = sh3_close;
 385
 386   add_target (&sh3e_ops);
 387 }