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
 188 static void
 189 init_sh3_cmds(void)
 190 {
 191   sh3_cmds.flags =   MO_CLR_BREAK_USES_ADDR | MO_GETMEM_READ_SINGLE ;   /* flags */
 192   sh3_cmds.init =   sh3_inits;          /* monitor init string */
 193   sh3_cmds.cont =   "g\r";              /* continue command */
 194   sh3_cmds.step =   "s\r";              /* single step */
 195   sh3_cmds.stop =   "\003";             /* Interrupt program */
 196   sh3_cmds.set_break =   "b %x\r";      /* set a breakpoint */
 197   sh3_cmds.clr_break =   "b -%x\r";     /* clear a breakpoint */
 198   sh3_cmds.clr_all_break =   "b -\r";   /* clear all breakpoints */
 199   sh3_cmds.fill =   "f %x @%x %x\r";            /* fill (start len val) */
 200   sh3_cmds.setmem.cmdb =     "m %x %x\r";       /* setmem.cmdb (addr, value) */
 201   sh3_cmds.setmem.cmdw =     "m %x %x;w\r";     /* setmem.cmdw (addr, value) */
 202   sh3_cmds.setmem.cmdl =     "m %x %x;l\r";     /* setmem.cmdl (addr, value) */
 203   sh3_cmds.setmem.cmdll =     NULL;             /* setmem.cmdll (addr, value) */
 204   sh3_cmds.setmem.resp_delim =     NULL;        /* setreg.resp_delim */
 205   sh3_cmds.setmem.term =     NULL;              /* setreg.term */
 206   sh3_cmds.setmem.term_cmd =     NULL;          /* setreg.term_cmd */
 207   sh3_cmds.getmem.cmdb =     "m %x\r";          /* getmem.cmdb (addr, len) */
 208   sh3_cmds.getmem.cmdw =     "m %x;w\r";        /* getmem.cmdw (addr, len) */
 209   sh3_cmds.getmem.cmdl =     "m %x;l\r";        /* getmem.cmdl (addr, len) */
 210   sh3_cmds.getmem.cmdll =     NULL;             /* getmem.cmdll (addr, len) */
 211   sh3_cmds.getmem.resp_delim =     "^ [0-9A-F]+ "; /* getmem.resp_delim */
 212   sh3_cmds.getmem.term =     "? ";              /* getmem.term */
 213   sh3_cmds.getmem.term_cmd =     ".\r";         /* getmem.term_cmd */
 214   sh3_cmds.setreg.cmd =     ".%s %x\r";         /* setreg.cmd (name, value) */
 215   sh3_cmds.setreg.resp_delim =     NULL;        /* setreg.resp_delim */
 216   sh3_cmds.setreg.term =     NULL;              /* setreg.term */
 217   sh3_cmds.setreg.term_cmd =     NULL;          /* setreg.term_cmd */
 218   sh3_cmds.getreg.cmd =     ".%s\r";            /* getreg.cmd (name) */
 219   sh3_cmds.getreg.resp_delim =     "=";         /* getreg.resp_delim */
 220   sh3_cmds.getreg.term =     "? ";              /* getreg.term */
 221   sh3_cmds.getreg.term_cmd =     ".\r"  ;       /* getreg.term_cmd */
 222   sh3_cmds.dump_registers =   "r\r";            /* dump_registers */
 223   sh3_cmds.register_pattern =   "\\(\\w+\\)=\\([0-9a-fA-F]+\\( +[0-9a-fA-F]+\\b\\)*\\)";
 224   sh3_cmds.supply_register =  sh3_supply_register ;     /* supply_register */
 225   sh3_cmds.load_routine =   sh3_load;           /* load_routine */
 226   sh3_cmds.load =   NULL;                       /* download command */
 227   sh3_cmds.loadresp =   NULL;                   /* Load response */
 228   sh3_cmds.prompt =   "\n:";                    /* monitor command prompt */
 229   sh3_cmds.line_term =   "\r";                  /* end-of-line terminator */
 230   sh3_cmds.cmd_end =   ".\r";                   /* optional command terminator */
 231   sh3_cmds.target =   &sh3_ops;                 /* target operations */
 232   sh3_cmds.stopbits =   SERIAL_1_STOPBITS;      /* number of stop bits */
 233   sh3_cmds.regnames =   sh3_regnames;           /* registers names */
 234   sh3_cmds.magic =   MONITOR_OPS_MAGIC  ;       /* magic */
 235 } /* init_sh3_cmds */
 236
 237 /* This monitor structure is identical except for a couple slots, so
 238    we will fill it in from the base structure when needed.  */
 239
 240 static struct monitor_ops sh3e_cmds;
 241
 242 static void
 243 sh3_open (args, from_tty)
 244      char *args;
 245      int from_tty;
 246 {
 247   char *serial_port_name = args;
 248   char *parallel_port_name = 0;
 249
 250   if (args)
 251     {
 252       char *cursor = serial_port_name = strsave (args);
 253
 254       while (*cursor && *cursor != ' ')
 255         cursor++;
 256
 257       if (*cursor)
 258         *cursor++ = 0;
 259
 260       while (*cursor == ' ')
 261         cursor++;
 262
 263       if (*cursor)
 264         parallel_port_name = cursor;
 265     }
 266
 267   monitor_open (serial_port_name, &sh3_cmds, from_tty);
 268
 269   if (parallel_port_name)
 270     {
 271       parallel = SERIAL_OPEN (parallel_port_name);
 272
 273       if (!parallel)
 274         perror_with_name ("Unable to open parallel port.");
 275
 276       parallel_in_use = 1;
 277     }
 278
 279   /* If we connected successfully, we know the processor is an SH3.  */
 280   set_architecture_from_arch_mach (bfd_arch_sh, bfd_mach_sh3);
 281 }
 282
 283
 284 static void
 285 sh3e_open (args, from_tty)
 286      char *args;
 287      int from_tty;
 288 {
 289   char *serial_port_name = args;
 290   char *parallel_port_name = 0;
 291
 292   if (args)
 293     {
 294       char *cursor = serial_port_name = strsave (args);
 295
 296       while (*cursor && *cursor != ' ')
 297         cursor++;
 298
 299       if (*cursor)
 300         *cursor++ = 0;
 301
 302       while (*cursor == ' ')
 303         cursor++;
 304
 305       if (*cursor)
 306         parallel_port_name = cursor;
 307     }
 308
 309   /* Set up the SH-3E monitor commands structure.  */
 310
 311   memcpy (&sh3e_cmds, &sh3_cmds, sizeof (struct monitor_ops));
 312
 313   sh3e_cmds.target = &sh3e_ops;
 314   sh3e_cmds.regnames = sh3e_regnames;
 315
 316   monitor_open (serial_port_name, &sh3e_cmds, from_tty);
 317
 318   if (parallel_port_name)
 319     {
 320       parallel = SERIAL_OPEN (parallel_port_name);
 321
 322       if (!parallel)
 323         perror_with_name ("Unable to open parallel port.");
 324
 325       parallel_in_use = 1;
 326     }
 327
 328   /* If we connected successfully, we know the processor is an SH3E.  */
 329   set_architecture_from_arch_mach (bfd_arch_sh, bfd_mach_sh3);
 330 }
 331
 332 static void
 333 sh3_close (quitting)
 334      int quitting;
 335 {
 336   monitor_close (quitting);
 337   if (parallel_in_use) {
 338     SERIAL_CLOSE (parallel);
 339     parallel_in_use = 0;
 340   }
 341 }
 342
 343 void
 344 _initialize_sh3_rom ()
 345 {
 346   init_sh3_cmds() ;
 347   init_monitor_ops (&sh3_ops);
 348
 349   sh3_ops.to_shortname = "sh3";
 350   sh3_ops.to_longname = "Hitachi SH-3 rom monitor";
 351
 352   sh3_ops.to_doc =
 353 #ifdef _WINDOWS
 354   /* On windows we can talk through the parallel port too. */
 355     "Debug on a Hitachi eval board running the SH-3 rom monitor.\n"
 356     "Specify the serial device it is connected to (e.g. com2).\n"
 357     "If you want to use the parallel port to download to it, specify that\n"
 358     "as the second argument. (e.g. lpt1)";
 359 #else
 360     "Debug on a Hitachi eval board running the SH-3 rom monitor.\n\
 361 Specify the serial device it is connected to (e.g. /dev/ttya).";
 362 #endif
 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 #ifdef _WINDOWS
 378   /* On windows we can talk through the parallel port too. */
 379     "Debug on a Hitachi eval board running the SH-3E rom monitor.\n"
 380     "Specify the serial device it is connected to (e.g. com2).\n"
 381     "If you want to use the parallel port to download to it, specify that\n"
 382     "as the second argument. (e.g. lpt1)";
 383 #else
 384     "Debug on a Hitachi eval board running the SH-3E rom monitor.\n\
 385 Specify the serial device it is connected to (e.g. /dev/ttya).";
 386 #endif
 387
 388   sh3e_ops.to_open = sh3e_open;
 389   sh3e_ops.to_close = sh3_close;
 390
 391   add_target (&sh3e_ops);
 392 }