| 1 | /* Remote debugging interface for ABug Rom monitor for GDB, the GNU debugger. |
| 2 | Copyright 1995, 1996 Free Software Foundation, Inc. |
| 3 | |
| 4 | Written by Rob Savoye of Cygnus Support |
| 5 | |
| 6 | This file is part of GDB. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 2 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program; if not, write to the Free Software |
| 20 | Foundation, Inc., 59 Temple Place - Suite 330, 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 | |
| 28 | static void abug_open PARAMS ((char *args, int from_tty)); |
| 29 | |
| 30 | static void |
| 31 | abug_supply_register (regname, regnamelen, val, vallen) |
| 32 | char *regname; |
| 33 | int regnamelen; |
| 34 | char *val; |
| 35 | int vallen; |
| 36 | { |
| 37 | int regno; |
| 38 | |
| 39 | if (regnamelen != 2) |
| 40 | return; |
| 41 | |
| 42 | switch (regname[0]) |
| 43 | { |
| 44 | case 'S': |
| 45 | if (regname[1] != 'R') |
| 46 | return; |
| 47 | regno = PS_REGNUM; |
| 48 | break; |
| 49 | case 'P': |
| 50 | if (regname[1] != 'C') |
| 51 | return; |
| 52 | regno = PC_REGNUM; |
| 53 | break; |
| 54 | case 'D': |
| 55 | if (regname[1] < '0' || regname[1] > '7') |
| 56 | return; |
| 57 | regno = regname[1] - '0' + D0_REGNUM; |
| 58 | break; |
| 59 | case 'A': |
| 60 | if (regname[1] < '0' || regname[1] > '7') |
| 61 | return; |
| 62 | regno = regname[1] - '0' + A0_REGNUM; |
| 63 | break; |
| 64 | default: |
| 65 | return; |
| 66 | } |
| 67 | |
| 68 | monitor_supply_register (regno, val); |
| 69 | } |
| 70 | |
| 71 | /* |
| 72 | * This array of registers needs to match the indexes used by GDB. The |
| 73 | * whole reason this exists is because the various ROM monitors use |
| 74 | * different names than GDB does, and don't support all the |
| 75 | * registers either. So, typing "info reg sp" becomes an "A7". |
| 76 | */ |
| 77 | |
| 78 | static char *abug_regnames[NUM_REGS] = |
| 79 | { |
| 80 | "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7", |
| 81 | "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7", |
| 82 | "PC", |
| 83 | }; |
| 84 | |
| 85 | /* |
| 86 | * Define the monitor command strings. Since these are passed directly |
| 87 | * through to a printf style function, we need can include formatting |
| 88 | * strings. We also need a CR or LF on the end. |
| 89 | */ |
| 90 | |
| 91 | static struct target_ops abug_ops; |
| 92 | |
| 93 | static char *abug_inits[] = {"\r", NULL}; |
| 94 | |
| 95 | static struct monitor_ops abug_cmds ; |
| 96 | |
| 97 | static void init_abug_cmds(void) |
| 98 | { |
| 99 | abug_cmds.flags = MO_CLR_BREAK_USES_ADDR; |
| 100 | abug_cmds.init = abug_inits; /* Init strings */ |
| 101 | abug_cmds.cont = "g\r"; /* continue command */ |
| 102 | abug_cmds.step = "t\r"; /* single step */ |
| 103 | abug_cmds.stop = NULL; /* interrupt command */ |
| 104 | abug_cmds.set_break = "br %x\r"; /* set a breakpoint */ |
| 105 | abug_cmds.clr_break = "nobr %x\r"; /* clear a breakpoint */ |
| 106 | abug_cmds.clr_all_break = "nobr\r"; /* clear all breakpoints */ |
| 107 | abug_cmds.fill = "bf %x:%x %x;b\r"; /* fill (start count val) */ |
| 108 | abug_cmds.setmem.cmdb = "ms %x %02x\r"; /* setmem.cmdb (addr, value) */ |
| 109 | abug_cmds.setmem.cmdw = "ms %x %04x\r"; /* setmem.cmdw (addr, value) */ |
| 110 | abug_cmds.setmem.cmdl = "ms %x %08x\r"; /* setmem.cmdl (addr, value) */ |
| 111 | abug_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */ |
| 112 | abug_cmds.setmem.resp_delim = NULL; /* setreg.resp_delim */ |
| 113 | abug_cmds.setmem.term = NULL; /* setreg.term */ |
| 114 | abug_cmds.setmem.term_cmd = NULL; /* setreg.term_cmd */ |
| 115 | abug_cmds.getmem.cmdb = "md %x:%x;b\r"; /* getmem.cmdb (addr, len) */ |
| 116 | abug_cmds.getmem.cmdw = "md %x:%x;b\r"; /* getmem.cmdw (addr, len) */ |
| 117 | abug_cmds.getmem.cmdl = "md %x:%x;b\r"; /* getmem.cmdl (addr, len) */ |
| 118 | abug_cmds.getmem.cmdll = NULL; /* getmem.cmdll (addr, len) */ |
| 119 | abug_cmds.getmem.resp_delim = " "; /* getmem.resp_delim */ |
| 120 | abug_cmds.getmem.term = NULL; /* getmem.term */ |
| 121 | abug_cmds.getmem.term_cmd = NULL; /* getmem.term_cmd */ |
| 122 | abug_cmds.setreg.cmd = "rm %s %x\r"; /* setreg.cmd (name, value) */ |
| 123 | abug_cmds.setreg.resp_delim = "="; /* setreg.resp_delim */ |
| 124 | abug_cmds.setreg.term = "? "; /* setreg.term */ |
| 125 | abug_cmds.setreg.term_cmd = ".\r" ; /* setreg.term_cmd */ |
| 126 | abug_cmds.getreg.cmd = "rm %s\r"; /* getreg.cmd (name) */ |
| 127 | abug_cmds.getreg.resp_delim = "="; /* getreg.resp_delim */ |
| 128 | abug_cmds.getreg.term = "? "; /* getreg.term */ |
| 129 | abug_cmds.getreg.term_cmd = ".\r" ; /* getreg.term_cmd */ |
| 130 | abug_cmds.dump_registers = "rd\r"; /* dump_registers */ |
| 131 | abug_cmds.register_pattern = "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)"; /* register_pattern */ |
| 132 | abug_cmds.supply_register = abug_supply_register; /* supply_register */ |
| 133 | abug_cmds.load_routine = NULL; /* load_routine (defaults to SRECs) */ |
| 134 | abug_cmds.load = "lo 0\r"; /* download command */ |
| 135 | abug_cmds.loadresp = "\n"; /* load response */ |
| 136 | abug_cmds.prompt = "135Bug>"; /* monitor command prompt */ |
| 137 | abug_cmds.line_term = "\r"; /* end-of-line terminator */ |
| 138 | abug_cmds.cmd_end = NULL; /* optional command terminator */ |
| 139 | abug_cmds.target = &abug_ops; /* target operations */ |
| 140 | abug_cmds.stopbits = SERIAL_1_STOPBITS; /* number of stop bits */ |
| 141 | abug_cmds.regnames = abug_regnames; /* registers names */ |
| 142 | abug_cmds.magic = MONITOR_OPS_MAGIC ; /* magic */ |
| 143 | }; |
| 144 | |
| 145 | static void |
| 146 | abug_open(args, from_tty) |
| 147 | char *args; |
| 148 | int from_tty; |
| 149 | { |
| 150 | monitor_open (args, &abug_cmds, from_tty); |
| 151 | } |
| 152 | |
| 153 | void |
| 154 | _initialize_abug_rom () |
| 155 | { |
| 156 | init_abug_cmds() ; |
| 157 | init_monitor_ops (&abug_ops); |
| 158 | |
| 159 | abug_ops.to_shortname = "abug"; |
| 160 | abug_ops.to_longname = "ABug monitor"; |
| 161 | abug_ops.to_doc = "Debug via the ABug monitor.\n\ |
| 162 | Specify the serial device it is connected to (e.g. /dev/ttya)."; |
| 163 | abug_ops.to_open = abug_open; |
| 164 | |
| 165 | add_target (&abug_ops); |
| 166 | } |