diff options
Diffstat (limited to 'gdb/cpu32bug-rom.c')
| -rw-r--r-- | gdb/cpu32bug-rom.c | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/gdb/cpu32bug-rom.c b/gdb/cpu32bug-rom.c new file mode 100644 index 0000000..758c8ca --- /dev/null +++ b/gdb/cpu32bug-rom.c @@ -0,0 +1,167 @@ +/* Remote debugging interface for CPU32Bug Rom monitor for GDB, the GNU debugger. + Copyright 1995 Free Software Foundation, Inc. + + Written by Stu Grossman 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" + +static void cpu32bug_open PARAMS ((char *args, int from_tty)); + +static void +cpu32bug_supply_register (regname, regnamelen, val, vallen) + 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 *cpu32bug_regnames[NUM_REGS] = +{ + "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7", + "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7", + "SR", "PC", +}; + +/* + * 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 cpu32bug_ops; + +static char *cpu32bug_inits[] = {"\r", NULL}; + +static struct monitor_ops cpu32bug_cmds ; + +static void +init_cpu32bug_cmds(void) +{ + cpu32bug_cmds.flags = MO_CLR_BREAK_USES_ADDR; + cpu32bug_cmds.init = cpu32bug_inits; /* Init strings */ + cpu32bug_cmds.cont = "g\r"; /* continue command */ + cpu32bug_cmds.step = "t\r"; /* single step */ + cpu32bug_cmds.stop = NULL; /* interrupt command */ + cpu32bug_cmds.set_break = "br %x\r"; /* set a breakpoint */ + cpu32bug_cmds.clr_break = "nobr %x\r"; /* clear a breakpoint */ + cpu32bug_cmds.clr_all_break = "nobr\r"; /* clear all breakpoints */ + cpu32bug_cmds.fill = "bf %x:%x %x;b\r"; /* fill (start count val) */ + cpu32bug_cmds.setmem.cmdb = "ms %x %02x\r"; /* setmem.cmdb (addr, value) */ + cpu32bug_cmds.setmem.cmdw = "ms %x %04x\r"; /* setmem.cmdw (addr, value) */ + cpu32bug_cmds.setmem.cmdl = "ms %x %08x\r"; /* setmem.cmdl (addr, value) */ + cpu32bug_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */ + cpu32bug_cmds.setmem.resp_delim = NULL; /* setreg.resp_delim */ + cpu32bug_cmds.setmem.term = NULL; /* setreg.term */ + cpu32bug_cmds.setmem.term_cmd = NULL; /* setreg.term_cmd */ + cpu32bug_cmds.getmem.cmdb = "md %x:%x;b\r"; /* getmem.cmdb (addr, len) */ + cpu32bug_cmds.getmem.cmdw = "md %x:%x;b\r"; /* getmem.cmdw (addr, len) */ + cpu32bug_cmds.getmem.cmdl = "md %x:%x;b\r"; /* getmem.cmdl (addr, len) */ + cpu32bug_cmds.getmem.cmdll = NULL; /* getmem.cmdll (addr, len) */ + cpu32bug_cmds.getmem.resp_delim = " "; /* getmem.resp_delim */ + cpu32bug_cmds.getmem.term = NULL; /* getmem.term */ + cpu32bug_cmds.getmem.term_cmd = NULL; /* getmem.term_cmd */ + cpu32bug_cmds.setreg.cmd = "rs %s %x\r"; /* setreg.cmd (name, value) */ + cpu32bug_cmds.setreg.resp_delim = NULL; /* setreg.resp_delim */ + cpu32bug_cmds.setreg.term = NULL; /* setreg.term */ + cpu32bug_cmds.setreg.term_cmd = NULL; /* setreg.term_cmd */ + cpu32bug_cmds.getreg.cmd = "rs %s\r"; /* getreg.cmd (name) */ + cpu32bug_cmds.getreg.resp_delim = "="; /* getreg.resp_delim */ + cpu32bug_cmds.getreg.term = NULL; /* getreg.term */ + cpu32bug_cmds.getreg.term_cmd = NULL ; /* getreg.term_cmd */ + cpu32bug_cmds.dump_registers = "rd\r"; /* dump_registers */ + cpu32bug_cmds.register_pattern = "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)"; /* register_pattern */ + cpu32bug_cmds.supply_register = cpu32bug_supply_register; /* supply_register */ + cpu32bug_cmds.load_routine = NULL; /* load_routine (defaults to SRECs) */ + cpu32bug_cmds.load = "lo\r"; /* download command */ + cpu32bug_cmds.loadresp = "\n"; /* load response */ + cpu32bug_cmds.prompt = "CPU32Bug>"; /* monitor command prompt */ + cpu32bug_cmds.line_term = "\r"; /* end-of-line terminator */ + cpu32bug_cmds.cmd_end = NULL; /* optional command terminator */ + cpu32bug_cmds.target = &cpu32bug_ops; /* target operations */ + cpu32bug_cmds.stopbits = SERIAL_1_STOPBITS; /* number of stop bits */ + cpu32bug_cmds.regnames = cpu32bug_regnames; /* registers names */ + cpu32bug_cmds.magic = MONITOR_OPS_MAGIC; /* magic */ +}; /* init_cpu32bug_cmds */ + +static void +cpu32bug_open(args, from_tty) + char *args; + int from_tty; +{ + monitor_open (args, &cpu32bug_cmds, from_tty); +} + +void +_initialize_cpu32bug_rom () +{ + init_cpu32bug_cmds() ; + init_monitor_ops (&cpu32bug_ops); + + cpu32bug_ops.to_shortname = "cpu32bug"; + cpu32bug_ops.to_longname = "CPU32Bug monitor"; + cpu32bug_ops.to_doc = "Debug via the CPU32Bug monitor.\n\ +Specify the serial device it is connected to (e.g. /dev/ttya)."; + cpu32bug_ops.to_open = cpu32bug_open; + + add_target (&cpu32bug_ops); +} |