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,
  23    Boston, MA 02111-1307, USA.  */
  24
  25 #include "defs.h"
  26 #include "gdbcore.h"
  27 #include "target.h"
  28 #include "monitor.h"
  29 #include "serial.h"
  30
  31 static void est_open (char *args, int from_tty);
  32
  33 static void
  34 est_supply_register (char *regname, int regnamelen, char *val, int vallen)
  35 {
  36   int regno;
  37
  38   if (regnamelen != 2)
  39     return;
  40
  41   switch (regname[0])
  42     {
  43     case 'S':
  44       if (regname[1] != 'R')
  45         return;
  46       regno = PS_REGNUM;
  47       break;
  48     case 'P':
  49       if (regname[1] != 'C')
  50         return;
  51       regno = PC_REGNUM;
  52       break;
  53     case 'D':
  54       if (regname[1] < '0' || regname[1] > '7')
  55         return;
  56       regno = regname[1] - '0' + D0_REGNUM;
  57       break;
  58     case 'A':
  59       if (regname[1] < '0' || regname[1] > '7')
  60         return;
  61       regno = regname[1] - '0' + A0_REGNUM;
  62       break;
  63     default:
  64       return;
  65     }
  66
  67   monitor_supply_register (regno, val);
  68 }
  69
  70 /*
  71  * This array of registers needs to match the indexes used by GDB. The
  72  * whole reason this exists is because the various ROM monitors use
  73  * different names than GDB does, and don't support all the
  74  * registers either. So, typing "info reg sp" becomes a "r30".
  75  */
  76
  77 static char *est_regnames[NUM_REGS] =
  78 {
  79   "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
  80   "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7",
  81   "SR", "PC",
  82 };
  83
  84 /*
  85  * Define the monitor command strings. Since these are passed directly
  86  * through to a printf style function, we need can include formatting
  87  * strings. We also need a CR or LF on the end.
  88  */
  89
  90 static struct target_ops est_ops;
  91
  92 static char *est_inits[] =
  93 {"he\r",                        /* Resets the prompt, and clears repeated cmds */
  94  NULL};
  95
  96 static struct monitor_ops est_cmds;
  97
  98 static void
  99 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 (char *args, int from_tty)
 150 {
 151   monitor_open (args, &est_cmds, from_tty);
 152 }
 153
 154 void
 155 _initialize_est (void)
 156 {
 157   init_est_cmds ();
 158   init_monitor_ops (&est_ops);
 159
 160   est_ops.to_shortname = "est";
 161   est_ops.to_longname = "EST background debug monitor";
 162   est_ops.to_doc = "Debug via the EST BDM.\n\
 163 Specify the serial device it is connected to (e.g. /dev/ttya).";
 164   est_ops.to_open = est_open;
 165
 166   add_target (&est_ops);
 167 }