gdb/remote-est.c

   1 /* Remote debugging interface for EST-300 ICE, for GDB
   2    Copyright 1995 Free Software Foundation, Inc.
   3    Contributed by Cygnus Support.
   4
   5    Written by Steve Chamberlain for Cygnus Support.
   6    Re-written by Stu Grossman of Cygnus Support
   7
   8 This file is part of GDB.
   9
  10 This program is free software; you can redistribute it and/or modify
  11 it under the terms of the GNU General Public License as published by
  12 the Free Software Foundation; either version 2 of the License, or
  13 (at your option) any later version.
  14
  15 This program is distributed in the hope that it will be useful,
  16 but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 GNU General Public License for more details.
  19
  20 You should have received a copy of the GNU General Public License
  21 along with this program; if not, write to the Free Software
  22 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  23
  24 #include "defs.h"
  25 #include "gdbcore.h"
  26 #include "target.h"
  27 #include "monitor.h"
  28 #include "serial.h"
  29
  30 static void est_open PARAMS ((char *args, int from_tty));
  31
  32 static void
  33 est_supply_register (regname, regnamelen, val, vallen)
  34      char *regname;
  35      int regnamelen;
  36      char *val;
  37      int vallen;
  38 {
  39   int regno;
  40
  41   if (regnamelen != 2)
  42     return;
  43
  44   switch (regname[0])
  45     {
  46     case 'S':
  47       if (regname[1] != 'R')
  48         return;
  49       regno = PS_REGNUM;
  50       break;
  51     case 'P':
  52       if (regname[1] != 'C')
  53         return;
  54       regno = PC_REGNUM;
  55       break;
  56     case 'D':
  57       if (regname[1] < '0' || regname[1] > '7')
  58         return;
  59       regno = regname[1] - '0' + D0_REGNUM;
  60       break;
  61     case 'A':
  62       if (regname[1] < '0' || regname[1] > '7')
  63         return;
  64       regno = regname[1] - '0' + A0_REGNUM;
  65       break;
  66     default:
  67       return;
  68     }
  69
  70   monitor_supply_register (regno, val);
  71 }
  72
  73 /*
  74  * This array of registers needs to match the indexes used by GDB. The
  75  * whole reason this exists is because the various ROM monitors use
  76  * different names than GDB does, and don't support all the
  77  * registers either. So, typing "info reg sp" becomes a "r30".
  78  */
  79
  80 static char *est_regnames[NUM_REGS] =
  81 {
  82   "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
  83   "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7",
  84   "SR", "PC",
  85 };
  86
  87 /*
  88  * Define the monitor command strings. Since these are passed directly
  89  * through to a printf style function, we need can include formatting
  90  * strings. We also need a CR or LF on the end.
  91  */
  92
  93 static struct target_ops est_ops;
  94
  95 static char *est_inits[] = {"he\r", /* Resets the prompt, and clears repeated cmds */
  96                               NULL};
  97
  98 static struct monitor_ops est_cmds ;
  99 static void init_est_cmds(void)
 100 {
 101   est_cmds.flags =   MO_CLR_BREAK_USES_ADDR | MO_FILL_USES_ADDR | MO_NEED_REGDUMP_AFTER_CONT |
 102     MO_SREC_ACK | MO_SREC_ACK_PLUS ;
 103   est_cmds.init =   est_inits;                  /* Init strings */
 104   est_cmds.cont =   "go\r";                     /* continue command */
 105   est_cmds.step =   "sidr\r";                   /* single step */
 106   est_cmds.stop =   "\003";                     /* ^C interrupts the program */
 107   est_cmds.set_break =   "sb %x\r";                     /* set a breakpoint */
 108   est_cmds.clr_break =   "rb %x\r";                     /* clear a breakpoint */
 109   est_cmds.clr_all_break =   "rb\r";                    /* clear all breakpoints */
 110   est_cmds.fill =   "bfb %x %x %x\r";           /* fill (start end val) */
 111   est_cmds.setmem.cmdb =     "smb %x %x\r";             /* setmem.cmdb (addr, value) */
 112   est_cmds.setmem.cmdw =     "smw %x %x\r";             /* setmem.cmdw (addr, value) */
 113   est_cmds.setmem.cmdl =     "sml %x %x\r";             /* setmem.cmdl (addr, value) */
 114   est_cmds.setmem.cmdll =     NULL;                     /* setmem.cmdll (addr, value) */
 115   est_cmds.setmem.resp_delim =     NULL;                        /* setreg.resp_delim */
 116   est_cmds.setmem.term =     NULL;                      /* setreg.term */
 117   est_cmds.setmem.term_cmd =     NULL;                  /* setreg.term_cmd */
 118   est_cmds.getmem.cmdb =     "dmb %x %x\r";             /* getmem.cmdb (addr, len) */
 119   est_cmds.getmem.cmdw =     "dmw %x %x\r";             /* getmem.cmdw (addr, len) */
 120   est_cmds.getmem.cmdl =     "dml %x %x\r";             /* getmem.cmdl (addr, len) */
 121   est_cmds.getmem.cmdll =     NULL;                     /* getmem.cmdll (addr, len) */
 122   est_cmds.getmem.resp_delim =     ": ";                        /* getmem.resp_delim */
 123   est_cmds.getmem.term =     NULL;                      /* getmem.term */
 124   est_cmds.getmem.term_cmd =     NULL;                  /* getmem.term_cmd */
 125   est_cmds.setreg.cmd =     "sr %s %x\r";               /* setreg.cmd (name, value) */
 126   est_cmds.setreg.resp_delim =     NULL;                        /* setreg.resp_delim */
 127   est_cmds.setreg.term =     NULL;                      /* setreg.term */
 128   est_cmds.setreg.term_cmd =     NULL;                  /* setreg.term_cmd */
 129   est_cmds.getreg.cmd =     "dr %s\r";                  /* getreg.cmd (name) */
 130   est_cmds.getreg.resp_delim =     " = ";                       /* getreg.resp_delim */
 131   est_cmds.getreg.term =     NULL;                      /* getreg.term */
 132   est_cmds.getreg.term_cmd =     NULL ;                 /* getreg.term_cmd */
 133   est_cmds.dump_registers =   "dr\r";                   /* dump_registers */
 134   est_cmds.register_pattern =   "\\(\\w+\\) = \\([0-9a-fA-F]+\\)"; /* register_pattern */
 135   est_cmds.supply_register =   est_supply_register;             /* supply_register */
 136   est_cmds.load_routine =   NULL;                               /* load_routine (defaults to SRECs) */
 137   est_cmds.load =   "dl\r";                     /* download command */
 138   est_cmds.loadresp =   "+";                            /* load response */
 139   est_cmds.prompt =   ">BKM>";                  /* monitor command prompt */
 140   est_cmds.line_term =   "\r";                          /* end-of-line terminator */
 141   est_cmds.cmd_end =   NULL;                            /* optional command terminator */
 142   est_cmds.target =   &est_ops;                 /* target operations */
 143   est_cmds.stopbits =   SERIAL_1_STOPBITS;              /* number of stop bits */
 144   est_cmds.regnames =   est_regnames;                   /* registers names */
 145   est_cmds.magic =   MONITOR_OPS_MAGIC  ;       /* magic */
 146 } /* init_est_cmds */
 147
 148 static void
 149 est_open(args, from_tty)
 150      char *args;
 151      int from_tty;
 152 {
 153   monitor_open (args, &est_cmds, from_tty);
 154 }
 155
 156 void
 157 _initialize_est ()
 158 {
 159   init_est_cmds() ;
 160   init_monitor_ops (&est_ops);
 161
 162   est_ops.to_shortname = "est";
 163   est_ops.to_longname = "EST background debug monitor";
 164   est_ops.to_doc = "Debug via the EST BDM.\n\
 165 Specify the serial device it is connected to (e.g. /dev/ttya).";
 166   est_ops.to_open = est_open;
 167
 168   add_target (&est_ops);
 169 }