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Diffstat (limited to 'contrib/gdb/gdb/dbug-rom.c')
| -rw-r--r-- | contrib/gdb/gdb/dbug-rom.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/contrib/gdb/gdb/dbug-rom.c b/contrib/gdb/gdb/dbug-rom.c new file mode 100644 index 0000000..f315557 --- /dev/null +++ b/contrib/gdb/gdb/dbug-rom.c @@ -0,0 +1,161 @@ +/* Remote debugging interface to dBUG ROM monitor for GDB, the GNU debugger. + Copyright 1996, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. + + Written by Stan Shebs 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. */ + +/* dBUG is a monitor supplied on various Motorola boards, including + m68k, ColdFire, and PowerPC-based designs. The code here assumes + the ColdFire, and (as of 9/25/96) has only been tested with a + ColdFire IDP board. */ + +#include "defs.h" +#include "gdbcore.h" +#include "target.h" +#include "monitor.h" +#include "serial.h" +#include "regcache.h" + +static void dbug_open (char *args, int from_tty); + +static void +dbug_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' + D0_REGNUM; + break; + case 'A': + if (regname[1] < '0' || regname[1] > '7') + return; + regno = regname[1] - '0' + 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 char *dbug_regnames[NUM_REGS] = +{ + "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7", + "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7", + "SR", "PC" + /* no float registers */ +}; +static struct target_ops dbug_ops; +static struct monitor_ops dbug_cmds; + +static char *dbug_inits[] = +{"\r", NULL}; + + +static void +init_dbug_cmds (void) +{ + dbug_cmds.flags = MO_CLR_BREAK_USES_ADDR | MO_GETMEM_NEEDS_RANGE | MO_FILL_USES_ADDR; + dbug_cmds.init = dbug_inits; /* Init strings */ + dbug_cmds.cont = "go\r"; /* continue command */ + dbug_cmds.step = "trace\r"; /* single step */ + dbug_cmds.stop = NULL; /* interrupt command */ + dbug_cmds.set_break = "br %x\r"; /* set a breakpoint */ + dbug_cmds.clr_break = "br -r %x\r"; /* clear a breakpoint */ + dbug_cmds.clr_all_break = "br -r\r"; /* clear all breakpoints */ + dbug_cmds.fill = "bf.b %x %x %x\r"; /* fill (start end val) */ + dbug_cmds.setmem.cmdb = "mm.b %x %x\r"; /* setmem.cmdb (addr, value) */ + dbug_cmds.setmem.cmdw = "mm.w %x %x\r"; /* setmem.cmdw (addr, value) */ + dbug_cmds.setmem.cmdl = "mm.l %x %x\r"; /* setmem.cmdl (addr, value) */ + dbug_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */ + dbug_cmds.setmem.resp_delim = NULL; /* setmem.resp_delim */ + dbug_cmds.setmem.term = NULL; /* setmem.term */ + dbug_cmds.setmem.term_cmd = NULL; /* setmem.term_cmd */ + dbug_cmds.getmem.cmdb = "md.b %x %x\r"; /* getmem.cmdb (addr, addr2) */ + dbug_cmds.getmem.cmdw = "md.w %x %x\r"; /* getmem.cmdw (addr, addr2) */ + dbug_cmds.getmem.cmdl = "md.l %x %x\r"; /* getmem.cmdl (addr, addr2) */ + dbug_cmds.getmem.cmdll = NULL; /* getmem.cmdll (addr, addr2) */ + dbug_cmds.getmem.resp_delim = ":"; /* getmem.resp_delim */ + dbug_cmds.getmem.term = NULL; /* getmem.term */ + dbug_cmds.getmem.term_cmd = NULL; /* getmem.term_cmd */ + dbug_cmds.setreg.cmd = "rm %s %x\r"; /* setreg.cmd (name, value) */ + dbug_cmds.setreg.resp_delim = NULL; /* setreg.resp_delim */ + dbug_cmds.setreg.term = NULL; /* setreg.term */ + dbug_cmds.setreg.term_cmd = NULL; /* setreg.term_cmd */ + dbug_cmds.getreg.cmd = "rd %s\r"; /* getreg.cmd (name) */ + dbug_cmds.getreg.resp_delim = ":"; /* getreg.resp_delim */ + dbug_cmds.getreg.term = NULL; /* getreg.term */ + dbug_cmds.getreg.term_cmd = NULL; /* getreg.term_cmd */ + dbug_cmds.dump_registers = "rd\r"; /* dump_registers */ + dbug_cmds.register_pattern = "\\(\\w+\\) +:\\([0-9a-fA-F]+\\b\\)"; /* register_pattern */ + dbug_cmds.supply_register = dbug_supply_register; /* supply_register */ + dbug_cmds.load_routine = NULL; /* load_routine (defaults to SRECs) */ + dbug_cmds.load = "dl\r"; /* download command */ + dbug_cmds.loadresp = "\n"; /* load response */ + dbug_cmds.prompt = "dBUG>"; /* monitor command prompt */ + dbug_cmds.line_term = "\r"; /* end-of-line terminator */ + dbug_cmds.cmd_end = NULL; /* optional command terminator */ + dbug_cmds.target = &dbug_ops; /* target operations */ + dbug_cmds.stopbits = SERIAL_1_STOPBITS; /* number of stop bits */ + dbug_cmds.regnames = dbug_regnames; /* registers names */ + dbug_cmds.magic = MONITOR_OPS_MAGIC; /* magic */ +} /* init_debug_ops */ + +static void +dbug_open (char *args, int from_tty) +{ + monitor_open (args, &dbug_cmds, from_tty); +} + +void +_initialize_dbug_rom (void) +{ + init_dbug_cmds (); + init_monitor_ops (&dbug_ops); + + dbug_ops.to_shortname = "dbug"; + dbug_ops.to_longname = "dBUG monitor"; + dbug_ops.to_doc = "Debug via the dBUG monitor.\n\ +Specify the serial device it is connected to (e.g. /dev/ttya)."; + dbug_ops.to_open = dbug_open; + + add_target (&dbug_ops); +} |
