| /* Remote debugging interface for ABug Rom monitor for GDB, the GNU debugger. |
| Copyright 1995, 1996, 1998, 1999, 2000, 2001 |
| Free Software Foundation, Inc. |
| |
| Written by Rob Savoye of Cygnus Support |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include "defs.h" |
| #include "gdbcore.h" |
| #include "target.h" |
| #include "monitor.h" |
| #include "serial.h" |
| #include "regcache.h" |
| |
| #include "m68k-tdep.h" |
| |
| /* Prototypes for local functions. */ |
| |
| static void abug_open (char *args, int from_tty); |
| |
| static void |
| abug_supply_register (char *regname, int regnamelen, char *val, int vallen) |
| { |
| int regno; |
| |
| if (regnamelen != 2) |
| return; |
| |
| switch (regname[0]) |
| { |
| case 'S': |
| if (regname[1] != 'R') |
| return; |
| regno = PS_REGNUM; |
| break; |
| case 'P': |
| if (regname[1] != 'C') |
| return; |
| regno = PC_REGNUM; |
| break; |
| case 'D': |
| if (regname[1] < '0' || regname[1] > '7') |
| return; |
| regno = regname[1] - '0' + M68K_D0_REGNUM; |
| break; |
| case 'A': |
| if (regname[1] < '0' || regname[1] > '7') |
| return; |
| regno = regname[1] - '0' + M68K_A0_REGNUM; |
| break; |
| default: |
| return; |
| } |
| |
| monitor_supply_register (regno, val); |
| } |
| |
| /* |
| * This array of registers needs to match the indexes used by GDB. The |
| * whole reason this exists is because the various ROM monitors use |
| * different names than GDB does, and don't support all the |
| * registers either. So, typing "info reg sp" becomes an "A7". |
| */ |
| |
| static const char * |
| abug_regname (int index) |
| { |
| static char *regnames[] = |
| { |
| "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7", |
| "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7", |
| "PC", |
| }; |
| |
| if ((index >= (sizeof (regnames) / sizeof (regnames[0]))) |
| || (index < 0) || (index >= NUM_REGS)) |
| return NULL; |
| else |
| return regnames[index]; |
| } |
| |
| /* |
| * Define the monitor command strings. Since these are passed directly |
| * through to a printf style function, we need can include formatting |
| * strings. We also need a CR or LF on the end. |
| */ |
| |
| static struct target_ops abug_ops; |
| |
| static char *abug_inits[] = |
| {"\r", NULL}; |
| |
| static struct monitor_ops abug_cmds; |
| |
| static void |
| init_abug_cmds (void) |
| { |
| abug_cmds.flags = MO_CLR_BREAK_USES_ADDR; |
| abug_cmds.init = abug_inits; /* Init strings */ |
| abug_cmds.cont = "g\r"; /* continue command */ |
| abug_cmds.step = "t\r"; /* single step */ |
| abug_cmds.stop = NULL; /* interrupt command */ |
| abug_cmds.set_break = "br %x\r"; /* set a breakpoint */ |
| abug_cmds.clr_break = "nobr %x\r"; /* clear a breakpoint */ |
| abug_cmds.clr_all_break = "nobr\r"; /* clear all breakpoints */ |
| abug_cmds.fill = "bf %x:%x %x;b\r"; /* fill (start count val) */ |
| abug_cmds.setmem.cmdb = "ms %x %02x\r"; /* setmem.cmdb (addr, value) */ |
| abug_cmds.setmem.cmdw = "ms %x %04x\r"; /* setmem.cmdw (addr, value) */ |
| abug_cmds.setmem.cmdl = "ms %x %08x\r"; /* setmem.cmdl (addr, value) */ |
| abug_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */ |
| abug_cmds.setmem.resp_delim = NULL; /* setreg.resp_delim */ |
| abug_cmds.setmem.term = NULL; /* setreg.term */ |
| abug_cmds.setmem.term_cmd = NULL; /* setreg.term_cmd */ |
| abug_cmds.getmem.cmdb = "md %x:%x;b\r"; /* getmem.cmdb (addr, len) */ |
| abug_cmds.getmem.cmdw = "md %x:%x;b\r"; /* getmem.cmdw (addr, len) */ |
| abug_cmds.getmem.cmdl = "md %x:%x;b\r"; /* getmem.cmdl (addr, len) */ |
| abug_cmds.getmem.cmdll = NULL; /* getmem.cmdll (addr, len) */ |
| abug_cmds.getmem.resp_delim = " "; /* getmem.resp_delim */ |
| abug_cmds.getmem.term = NULL; /* getmem.term */ |
| abug_cmds.getmem.term_cmd = NULL; /* getmem.term_cmd */ |
| abug_cmds.setreg.cmd = "rm %s %x\r"; /* setreg.cmd (name, value) */ |
| abug_cmds.setreg.resp_delim = "="; /* setreg.resp_delim */ |
| abug_cmds.setreg.term = "? "; /* setreg.term */ |
| abug_cmds.setreg.term_cmd = ".\r"; /* setreg.term_cmd */ |
| abug_cmds.getreg.cmd = "rm %s\r"; /* getreg.cmd (name) */ |
| abug_cmds.getreg.resp_delim = "="; /* getreg.resp_delim */ |
| abug_cmds.getreg.term = "? "; /* getreg.term */ |
| abug_cmds.getreg.term_cmd = ".\r"; /* getreg.term_cmd */ |
| abug_cmds.dump_registers = "rd\r"; /* dump_registers */ |
| abug_cmds.register_pattern = "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)"; /* register_pattern */ |
| abug_cmds.supply_register = abug_supply_register; /* supply_register */ |
| abug_cmds.load_routine = NULL; /* load_routine (defaults to SRECs) */ |
| abug_cmds.load = "lo 0\r"; /* download command */ |
| abug_cmds.loadresp = "\n"; /* load response */ |
| abug_cmds.prompt = "135Bug>"; /* monitor command prompt */ |
| abug_cmds.line_term = "\r"; /* end-of-line terminator */ |
| abug_cmds.cmd_end = NULL; /* optional command terminator */ |
| abug_cmds.target = &abug_ops; /* target operations */ |
| abug_cmds.stopbits = SERIAL_1_STOPBITS; /* number of stop bits */ |
| abug_cmds.regnames = NULL; /* registers names */ |
| abug_cmds.regname = abug_regname; |
| abug_cmds.magic = MONITOR_OPS_MAGIC; /* magic */ |
| }; |
| |
| static void |
| abug_open (char *args, int from_tty) |
| { |
| monitor_open (args, &abug_cmds, from_tty); |
| } |
| |
| extern initialize_file_ftype _initialize_abug_rom; /* -Wmissing-prototypes */ |
| |
| void |
| _initialize_abug_rom (void) |
| { |
| init_abug_cmds (); |
| init_monitor_ops (&abug_ops); |
| |
| abug_ops.to_shortname = "abug"; |
| abug_ops.to_longname = "ABug monitor"; |
| abug_ops.to_doc = "Debug via the ABug monitor.\n\ |
| Specify the serial device it is connected to (e.g. /dev/ttya)."; |
| abug_ops.to_open = abug_open; |
| |
| add_target (&abug_ops); |
| } |