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Diffstat (limited to 'gdb/sh3-rom.c')
| -rw-r--r-- | gdb/sh3-rom.c | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/gdb/sh3-rom.c b/gdb/sh3-rom.c new file mode 100644 index 0000000..2fc3ae1 --- /dev/null +++ b/gdb/sh3-rom.c @@ -0,0 +1,201 @@ +/* Remote target glue for the Hitachi SH-3 ROM monitor. + Copyright 1995 Free Software Foundation, Inc. + +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 sh3_open PARAMS ((char *args, int from_tty)); + +static void +sh3_supply_register (regname, regnamelen, val, vallen) + char *regname; + int regnamelen; + char *val; + int vallen; +{ + int numregs; + int regno; + + numregs = 1; + regno = -1; + + if (regnamelen == 2) + switch (regname[0]) + { + case 'S': + if (regname[1] == 'R') + regno = SR_REGNUM; + break; + case 'P': + if (regname[1] == 'C') + regno = PC_REGNUM; + else if (regname[1] == 'R') + regno = PR_REGNUM; + break; + } + else if (regnamelen == 3) + switch (regname[0]) + { + case 'G': + case 'V': + if (regname[1] == 'B' && regname[2] == 'R') + if (regname[0] == 'G') + regno = VBR_REGNUM; + else + regno = GBR_REGNUM; + break; +#if 0 + case 'S': + if (regname[1] == 'S' && regname[2] == 'R') + regno = SSR_REGNUM; + else if (regname[1] == 'P' && regname[2] == 'C') + regno = SPC_REGNUM; + break; +#endif + } + else if (regnamelen == 4) + switch (regname[0]) + { + case 'M': + if (regname[1] == 'A' && regname[2] == 'C') + if (regname[3] == 'H') + regno = MACH_REGNUM; + else if (regname[3] == 'L') + regno = MACL_REGNUM; + break; + case 'R': + if (regname[1] == '0' && regname[2] == '-' && regname[3] == '7') + { + regno = R0_REGNUM; + numregs = 8; + } + } + else if (regnamelen == 5) + if (regname[1] == '8' && regname[2] == '-' && regname[3] == '1' + && regname[4] =='5') + { + regno = R0_REGNUM + 8; + numregs = 8; + } + + if (regno >= 0) + while (numregs-- > 0) + val = monitor_supply_register (regno++, val); +} + +/* This array of registers need to match the indexes used by GDB. + This exists because the various ROM monitors use different strings + than does GDB, and don't necessarily support all the registers + either. So, typing "info reg sp" becomes a "r30". */ + +static char *sh3_regnames[NUM_REGS] = { + "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", + "R8", "R9", "R10","R11","R12","R13","R14","R15", + "PC", "PR", "GBR","VBR","MACH","MACL","SR",NULL, + NULL, NULL, NULL, NULL}; + +/* Define the monitor command strings. Since these are passed directly + through to a printf style function, we may include formatting + strings. We also need a CR or LF on the end. */ + +static struct target_ops sh3_ops; + +static char *sh3_inits[] = {"\003", NULL}; /* Exits sub-command mode & download cmds */ + +static struct monitor_ops sh3_cmds = +{ + 0, /* flags */ + sh3_inits, /* monitor init string */ + "g\r", /* continue command */ + "s\r", /* single step */ + "\003", /* Interrupt program */ + "b %x\r", /* set a breakpoint */ + "b -%x\r", /* clear a breakpoint */ + "b -\r", /* clear all breakpoints */ + "f %x @%x %x\r", /* fill (start len val) */ + { + "m %x %x\r", /* setmem.cmdb (addr, value) */ + "m %x %x;w\r", /* setmem.cmdw (addr, value) */ + "m %x %x;l\r", /* setmem.cmdl (addr, value) */ + NULL, /* setmem.cmdll (addr, value) */ + NULL, /* setreg.resp_delim */ + NULL, /* setreg.term */ + NULL, /* setreg.term_cmd */ + }, + { + "d %x@%x;b\r", /* getmem.cmdb (addr, len) */ + "d %x@%x;w\r", /* getmem.cmdw (addr, len) */ + "d %x@%x;l\r", /* getmem.cmdl (addr, len) */ + NULL, /* getmem.cmdll (addr, len) */ + "^[0-9A-F]+ ", /* getmem.resp_delim */ + NULL, /* getmem.term */ + NULL, /* getmem.term_cmd */ + }, + { + ".%s %x\r", /* setreg.cmd (name, value) */ + NULL, /* setreg.resp_delim */ + NULL, /* setreg.term */ + NULL /* setreg.term_cmd */ + }, + { + ".%s\r", /* getreg.cmd (name) */ + "=", /* getreg.resp_delim */ + "? ", /* getreg.term */ + ".\r" /* getreg.term_cmd */ + }, + "r\r", /* dump_registers */ + /* register_pattern */ + "\\(\\w+\\)=\\([0-9a-fA-F]+\\( +[0-9a-fA-F]+\\b\\)*\\)", + sh3_supply_register, /* supply_register */ + NULL, /* load_routine (defaults to SRECs) */ + "l\r", /* download command */ + NULL, /* Load response */ + "\n:", /* monitor command prompt */ + "\r", /* end-of-line terminator */ + ".\r", /* optional command terminator */ + &sh3_ops, /* target operations */ + SERIAL_1_STOPBITS, /* number of stop bits */ + sh3_regnames, /* registers names */ + MONITOR_OPS_MAGIC /* magic */ +}; + +static void +sh3_open (args, from_tty) + char *args; + int from_tty; +{ + monitor_open (args, &sh3_cmds, from_tty); +} + +void +_initialize_sh3 () +{ + init_monitor_ops (&sh3_ops); + + sh3_ops.to_shortname = "sh3"; + sh3_ops.to_longname = "Hitachi SH-3 rom monitor"; + sh3_ops.to_doc = "Debug on a Hitachi eval board running the SH-3 rom monitor.\n\ +Specify the serial device it is connected to (e.g. /dev/ttya)."; + sh3_ops.to_open = sh3_open; + + add_target (&sh3_ops); +} |