gdb/sh3-rom.c

   1 /* Remote target glue for the Hitachi SH-3 ROM monitor.
   2    Copyright 1995, 1996 Free Software Foundation, Inc.
   3
   4 This file is part of GDB.
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20 #include "defs.h"
  21 #include "gdbcore.h"
  22 #include "target.h"
  23 #include "monitor.h"
  24 #include "serial.h"
  25 #include "srec.h"
  26
  27 static serial_t parallel;
  28 static int parallel_in_use;
  29
  30 static void sh3_open PARAMS ((char *args, int from_tty));
  31
  32 static void
  33 sh3_supply_register (regname, regnamelen, val, vallen)
  34      char *regname;
  35      int regnamelen;
  36      char *val;
  37      int vallen;
  38 {
  39   int numregs;
  40   int regno;
  41
  42   numregs = 1;
  43   regno = -1;
  44
  45   if (regnamelen == 2)
  46     {
  47       switch (regname[0])
  48         {
  49         case 'S':
  50           if (regname[1] == 'R')
  51             regno = SR_REGNUM;
  52           break;
  53         case 'P':
  54           if (regname[1] == 'C')
  55             regno = PC_REGNUM;
  56           else if (regname[1] == 'R')
  57             regno = PR_REGNUM;
  58           break;
  59         }
  60     }
  61   else if (regnamelen == 3)
  62     {
  63       switch (regname[0])
  64         {
  65         case 'G':
  66         case 'V':
  67           if (regname[1] == 'B' && regname[2] == 'R')
  68             if (regname[0] == 'G')
  69               regno = VBR_REGNUM;
  70             else
  71               regno = GBR_REGNUM;
  72           break;
  73         case 'S':
  74           if (regname[1] == 'S' && regname[2] == 'R')
  75             regno = SSR_REGNUM;
  76           else if (regname[1] == 'P' && regname[2] == 'C')
  77             regno = SPC_REGNUM;
  78           break;
  79         }
  80     }
  81   else if (regnamelen == 4)
  82     {
  83       switch (regname[0])
  84         {
  85         case 'M':
  86           if (regname[1] == 'A' && regname[2] == 'C')
  87             if (regname[3] == 'H')
  88               regno = MACH_REGNUM;
  89             else if (regname[3] == 'L')
  90               regno = MACL_REGNUM;
  91           break;
  92         case 'R':
  93           if (regname[1] == '0' && regname[2] == '-' && regname[3] == '7')
  94             {
  95               regno = R0_REGNUM;
  96               numregs = 8;
  97             }
  98         }
  99     }
 100   else if (regnamelen == 5)
 101     {
 102       if (regname[1] == '8' && regname[2] == '-' && regname[3] == '1'
 103           && regname[4] =='5')
 104         {
 105           regno = R0_REGNUM + 8;
 106           numregs = 8;
 107         }
 108     }
 109   else if (regnamelen == 17)
 110     {
 111     }
 112
 113   if (regno >= 0)
 114     while (numregs-- > 0)
 115       val = monitor_supply_register (regno++, val);
 116 }
 117
 118 static void
 119 sh3_load (desc, file, hashmark)
 120      serial_t desc;
 121      char *file;
 122      int hashmark;
 123 {
 124   if (parallel_in_use)
 125     {
 126       monitor_printf("pl;s\r");
 127       load_srec (parallel, file, 0, 80, SREC_ALL, hashmark, NULL);
 128       monitor_expect_prompt (NULL, 0);
 129     }
 130   else
 131     {
 132       monitor_printf ("il;s:x\r");
 133       monitor_expect ("\005", NULL, 0); /* Look for ENQ */
 134       SERIAL_WRITE (desc, "\006", 1); /* Send ACK */
 135       monitor_expect ("LO x\r", NULL, 0); /* Look for filename */
 136
 137       load_srec (desc, file, 0, 80, SREC_ALL, hashmark, NULL);
 138
 139       monitor_expect ("\005", NULL, 0); /* Look for ENQ */
 140       SERIAL_WRITE (desc, "\006", 1); /* Send ACK */
 141       monitor_expect_prompt (NULL, 0);
 142     }
 143 }
 144
 145 /* This array of registers need to match the indexes used by GDB.
 146    This exists because the various ROM monitors use different strings
 147    than does GDB, and don't necessarily support all the registers
 148    either. So, typing "info reg sp" becomes a "r30".  */
 149
 150 static char *sh3_regnames[NUM_REGS] = {
 151   "R0", "R1", "R2",  "R3", "R4",  "R5",   "R6",  "R7",
 152   "R8", "R9", "R10", "R11","R12", "R13",  "R14", "R15",
 153   "PC", "PR", "GBR", "VBR","MACH","MACL", "SR",
 154   NULL, NULL,
 155   NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 156   NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
 157   "SSR", "SPC",
 158   "R0_BANK0", "R1_BANK0", "R2_BANK0", "R3_BANK0",
 159   "R4_BANK0", "R5_BANK0", "R6_BANK0", "R7_BANK0",
 160   "R0_BANK1", "R1_BANK1", "R2_BANK1", "R3_BANK1",
 161   "R4_BANK1", "R5_BANK1", "R6_BANK1", "R7_BANK1"
 162 };
 163
 164 static char *sh3e_regnames[NUM_REGS] = {
 165   "R0", "R1", "R2",  "R3", "R4",  "R5",   "R6",  "R7",
 166   "R8", "R9", "R10", "R11","R12", "R13",  "R14", "R15",
 167   "PC", "PR", "GBR", "VBR","MACH","MACL", "SR",
 168   "FPUL", "FPSCR",
 169   "FR0", "FR1", "FR2", "FR3", "FR4", "FR5", "FR6", "FR7",
 170   "FR8", "FR9", "FR10", "FR11", "FR12", "FR13", "FR14", "FR15",
 171   "SSR","SPC",
 172   "R0_BANK0", "R1_BANK0", "R2_BANK0", "R3_BANK0",
 173   "R4_BANK0", "R5_BANK0", "R6_BANK0", "R7_BANK0",
 174   "R0_BANK1", "R1_BANK1", "R2_BANK1", "R3_BANK1",
 175   "R4_BANK1", "R5_BANK1", "R6_BANK1", "R7_BANK1"
 176 };
 177
 178 /* Define the monitor command strings. Since these are passed directly
 179    through to a printf style function, we may include formatting
 180    strings. We also need a CR or LF on the end.  */
 181
 182 static struct target_ops sh3_ops, sh3e_ops;
 183
 184 static char *sh3_inits[] = {"\003", NULL}; /* Exits sub-command mode & download cmds */
 185
 186 static struct monitor_ops sh3_cmds ;
 187 static void init_sh3_cmds(void)
 188 {
 189   sh3_cmds.flags =   MO_CLR_BREAK_USES_ADDR | MO_GETMEM_READ_SINGLE ;   /* flags */
 190   sh3_cmds.init =   sh3_inits;          /* monitor init string */
 191   sh3_cmds.cont =   "g\r";              /* continue command */
 192   sh3_cmds.step =   "s\r";              /* single step */
 193   sh3_cmds.stop =   "\003";             /* Interrupt program */
 194   sh3_cmds.set_break =   "b %x\r";      /* set a breakpoint */
 195   sh3_cmds.clr_break =   "b -%x\r";     /* clear a breakpoint */
 196   sh3_cmds.clr_all_break =   "b -\r";   /* clear all breakpoints */
 197   sh3_cmds.fill =   "f %x @%x %x\r";            /* fill (start len val) */
 198   sh3_cmds.setmem.cmdb =     "m %x %x\r";       /* setmem.cmdb (addr, value) */
 199   sh3_cmds.setmem.cmdw =     "m %x %x;w\r";     /* setmem.cmdw (addr, value) */
 200   sh3_cmds.setmem.cmdl =     "m %x %x;l\r";     /* setmem.cmdl (addr, value) */
 201   sh3_cmds.setmem.cmdll =     NULL;             /* setmem.cmdll (addr, value) */
 202   sh3_cmds.setmem.resp_delim =     NULL;        /* setreg.resp_delim */
 203   sh3_cmds.setmem.term =     NULL;              /* setreg.term */
 204   sh3_cmds.setmem.term_cmd =     NULL;          /* setreg.term_cmd */
 205   sh3_cmds.getmem.cmdb =     "m %x\r";          /* getmem.cmdb (addr, len) */
 206   sh3_cmds.getmem.cmdw =     "m %x;w\r";        /* getmem.cmdw (addr, len) */
 207   sh3_cmds.getmem.cmdl =     "m %x;l\r";        /* getmem.cmdl (addr, len) */
 208   sh3_cmds.getmem.cmdll =     NULL;             /* getmem.cmdll (addr, len) */
 209   sh3_cmds.getmem.resp_delim =     "^ [0-9A-F]+ "; /* getmem.resp_delim */
 210   sh3_cmds.getmem.term =     "? ";              /* getmem.term */
 211   sh3_cmds.getmem.term_cmd =     ".\r";         /* getmem.term_cmd */
 212   sh3_cmds.setreg.cmd =     ".%s %x\r";         /* setreg.cmd (name, value) */
 213   sh3_cmds.setreg.resp_delim =     NULL;        /* setreg.resp_delim */
 214   sh3_cmds.setreg.term =     NULL;              /* setreg.term */
 215   sh3_cmds.setreg.term_cmd =     NULL;          /* setreg.term_cmd */
 216   sh3_cmds.getreg.cmd =     ".%s\r";            /* getreg.cmd (name) */
 217   sh3_cmds.getreg.resp_delim =     "=";         /* getreg.resp_delim */
 218   sh3_cmds.getreg.term =     "? ";              /* getreg.term */
 219   sh3_cmds.getreg.term_cmd =     ".\r"  ;       /* getreg.term_cmd */
 220   sh3_cmds.dump_registers =   "r\r";            /* dump_registers */
 221   sh3_cmds.register_pattern =   "\\(\\w+\\)=\\([0-9a-fA-F]+\\( +[0-9a-fA-F]+\\b\\)*\\)";
 222   sh3_cmds.supply_register =  sh3_supply_register ;     /* supply_register */
 223   sh3_cmds.load_routine =   sh3_load;           /* load_routine */
 224   sh3_cmds.load =   NULL;                       /* download command */
 225   sh3_cmds.loadresp =   NULL;                   /* Load response */
 226   sh3_cmds.prompt =   "\n:";                    /* monitor command prompt */
 227   sh3_cmds.line_term =   "\r";                  /* end-of-line terminator */
 228   sh3_cmds.cmd_end =   ".\r";                   /* optional command terminator */
 229   sh3_cmds.target =   &sh3_ops;                 /* target operations */
 230   sh3_cmds.stopbits =   SERIAL_1_STOPBITS;      /* number of stop bits */
 231   sh3_cmds.regnames =   sh3_regnames;           /* registers names */
 232   sh3_cmds.magic =   MONITOR_OPS_MAGIC  ;       /* magic */
 233 } /* init_sh3_cmds */
 234
 235 /* This monitor structure is identical except for a couple slots, so
 236    we will fill it in from the base structure when needed.  */
 237
 238 static struct monitor_ops sh3e_cmds;
 239
 240 static void
 241 sh3_open (args, from_tty)
 242      char *args;
 243      int from_tty;
 244 {
 245   char *serial_port_name = args;
 246   char *parallel_port_name = 0;
 247
 248   if (args)
 249     {
 250       char *cursor = serial_port_name = strsave (args);
 251
 252       while (*cursor && *cursor != ' ')
 253         cursor++;
 254
 255       if (*cursor)
 256         *cursor++ = 0;
 257
 258       while (*cursor == ' ')
 259         cursor++;
 260
 261       if (*cursor)
 262         parallel_port_name = cursor;
 263     }
 264
 265   monitor_open (serial_port_name, &sh3_cmds, from_tty);
 266
 267   if (parallel_port_name)
 268     {
 269       parallel = SERIAL_OPEN (parallel_port_name);
 270
 271       if (!parallel)
 272         perror_with_name ("Unable to open parallel port.");
 273
 274       parallel_in_use = 1;
 275     }
 276
 277   /* If we connected successfully, we know the processor is an SH3.  */
 278   set_architecture_from_arch_mach (bfd_arch_sh, bfd_mach_sh3);
 279 }
 280
 281
 282 static void
 283 sh3e_open (args, from_tty)
 284      char *args;
 285      int from_tty;
 286 {
 287   char *serial_port_name = args;
 288   char *parallel_port_name = 0;
 289
 290   if (args)
 291     {
 292       char *cursor = serial_port_name = strsave (args);
 293
 294       while (*cursor && *cursor != ' ')
 295         cursor++;
 296
 297       if (*cursor)
 298         *cursor++ = 0;
 299
 300       while (*cursor == ' ')
 301         cursor++;
 302
 303       if (*cursor)
 304         parallel_port_name = cursor;
 305     }
 306
 307   /* Set up the SH-3E monitor commands structure.  */
 308
 309   memcpy (&sh3e_cmds, &sh3_cmds, sizeof (struct monitor_ops));
 310
 311   sh3e_cmds.target = &sh3e_ops;
 312   sh3e_cmds.regnames = sh3e_regnames;
 313
 314   monitor_open (serial_port_name, &sh3e_cmds, from_tty);
 315
 316   if (parallel_port_name)
 317     {
 318       parallel = SERIAL_OPEN (parallel_port_name);
 319
 320       if (!parallel)
 321         perror_with_name ("Unable to open parallel port.");
 322
 323       parallel_in_use = 1;
 324     }
 325
 326   /* If we connected successfully, we know the processor is an SH3E.  */
 327   set_architecture_from_arch_mach (bfd_arch_sh, bfd_mach_sh3);
 328 }
 329
 330 static void
 331 sh3_close (quitting)
 332      int quitting;
 333 {
 334   monitor_close (quitting);
 335   if (parallel_in_use) {
 336     SERIAL_CLOSE (parallel);
 337     parallel_in_use = 0;
 338   }
 339 }
 340
 341 void
 342 _initialize_sh3_rom ()
 343 {
 344   init_sh3_cmds() ;
 345   init_monitor_ops (&sh3_ops);
 346
 347   sh3_ops.to_shortname = "sh3";
 348   sh3_ops.to_longname = "Hitachi SH-3 rom monitor";
 349
 350   sh3_ops.to_doc =
 351 #ifdef _WINDOWS
 352   /* On windows we can talk through the parallel port too. */
 353     "Debug on a Hitachi eval board running the SH-3 rom monitor.\n"
 354     "Specify the serial device it is connected to (e.g. com2).\n"
 355     "If you want to use the parallel port to download to it, specify that\n"
 356     "as the second argument. (e.g. lpt1)";
 357 #else
 358     "Debug on a Hitachi eval board running the SH-3 rom monitor.\n\
 359 Specify the serial device it is connected to (e.g. /dev/ttya).";
 360 #endif
 361
 362   sh3_ops.to_open = sh3_open;
 363   sh3_ops.to_close = sh3_close;
 364
 365   add_target (&sh3_ops);
 366
 367   /* Setup the SH3e, which has float registers.  */
 368
 369   init_monitor_ops (&sh3e_ops);
 370
 371   sh3e_ops.to_shortname = "sh3e";
 372   sh3e_ops.to_longname = "Hitachi SH-3E rom monitor";
 373
 374   sh3e_ops.to_doc =
 375 #ifdef _WINDOWS
 376   /* On windows we can talk through the parallel port too. */
 377     "Debug on a Hitachi eval board running the SH-3E rom monitor.\n"
 378     "Specify the serial device it is connected to (e.g. com2).\n"
 379     "If you want to use the parallel port to download to it, specify that\n"
 380     "as the second argument. (e.g. lpt1)";
 381 #else
 382     "Debug on a Hitachi eval board running the SH-3E rom monitor.\n\
 383 Specify the serial device it is connected to (e.g. /dev/ttya).";
 384 #endif
 385
 386   sh3e_ops.to_open = sh3e_open;
 387   sh3e_ops.to_close = sh3_close;
 388
 389   add_target (&sh3e_ops);
 390 }