222 lines
6.0 KiB
C
222 lines
6.0 KiB
C
/* Remote target glue for the Hitachi SH-3 ROM monitor.
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Copyright 1995 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "gdbcore.h"
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#include "target.h"
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#include "monitor.h"
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#include "serial.h"
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#include "srec.h"
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static void sh3_open PARAMS ((char *args, int from_tty));
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static void
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sh3_supply_register (regname, regnamelen, val, vallen)
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char *regname;
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int regnamelen;
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char *val;
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int vallen;
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{
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int numregs;
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int regno;
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numregs = 1;
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regno = -1;
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if (regnamelen == 2)
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switch (regname[0])
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{
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case 'S':
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if (regname[1] == 'R')
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regno = SR_REGNUM;
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break;
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case 'P':
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if (regname[1] == 'C')
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regno = PC_REGNUM;
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else if (regname[1] == 'R')
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regno = PR_REGNUM;
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break;
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}
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else if (regnamelen == 3)
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switch (regname[0])
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{
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case 'G':
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case 'V':
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if (regname[1] == 'B' && regname[2] == 'R')
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if (regname[0] == 'G')
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regno = VBR_REGNUM;
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else
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regno = GBR_REGNUM;
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break;
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#if 0
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case 'S':
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if (regname[1] == 'S' && regname[2] == 'R')
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regno = SSR_REGNUM;
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else if (regname[1] == 'P' && regname[2] == 'C')
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regno = SPC_REGNUM;
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break;
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#endif
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}
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else if (regnamelen == 4)
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switch (regname[0])
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{
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case 'M':
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if (regname[1] == 'A' && regname[2] == 'C')
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if (regname[3] == 'H')
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regno = MACH_REGNUM;
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else if (regname[3] == 'L')
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regno = MACL_REGNUM;
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break;
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case 'R':
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if (regname[1] == '0' && regname[2] == '-' && regname[3] == '7')
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{
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regno = R0_REGNUM;
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numregs = 8;
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}
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}
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else if (regnamelen == 5)
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if (regname[1] == '8' && regname[2] == '-' && regname[3] == '1'
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&& regname[4] =='5')
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{
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regno = R0_REGNUM + 8;
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numregs = 8;
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}
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if (regno >= 0)
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while (numregs-- > 0)
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val = monitor_supply_register (regno++, val);
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}
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static void
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sh3_load (desc, file, hashmark)
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serial_t desc;
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char *file;
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int hashmark;
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{
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monitor_printf ("il;s:x\r");
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monitor_expect ("\005", NULL, 0); /* Look for ENQ */
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SERIAL_WRITE (desc, "\006", 1); /* Send ACK */
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monitor_expect ("LO x\r", NULL, 0); /* Look for filename */
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load_srec (desc, file, 80, SREC_ALL, hashmark);
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monitor_expect ("\005", NULL, 0); /* Look for ENQ */
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SERIAL_WRITE (desc, "\006", 1); /* Send ACK */
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monitor_expect_prompt (NULL, 0);
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}
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/* This array of registers need to match the indexes used by GDB.
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This exists because the various ROM monitors use different strings
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than does GDB, and don't necessarily support all the registers
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either. So, typing "info reg sp" becomes a "r30". */
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static char *sh3_regnames[NUM_REGS] = {
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"R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7",
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"R8", "R9", "R10","R11","R12","R13","R14","R15",
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"PC", "PR", "GBR","VBR","MACH","MACL","SR",NULL,
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NULL, NULL, NULL, NULL};
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/* Define the monitor command strings. Since these are passed directly
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through to a printf style function, we may include formatting
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strings. We also need a CR or LF on the end. */
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static struct target_ops sh3_ops;
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static char *sh3_inits[] = {"\003", NULL}; /* Exits sub-command mode & download cmds */
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static struct monitor_ops sh3_cmds =
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{
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MO_CLR_BREAK_USES_ADDR
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| MO_GETMEM_READ_SINGLE, /* flags */
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sh3_inits, /* monitor init string */
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"g\r", /* continue command */
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"s\r", /* single step */
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"\003", /* Interrupt program */
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"b %x\r", /* set a breakpoint */
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"b -%x\r", /* clear a breakpoint */
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"b -\r", /* clear all breakpoints */
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"f %x @%x %x\r", /* fill (start len val) */
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{
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"m %x %x\r", /* setmem.cmdb (addr, value) */
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"m %x %x;w\r", /* setmem.cmdw (addr, value) */
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"m %x %x;l\r", /* setmem.cmdl (addr, value) */
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NULL, /* setmem.cmdll (addr, value) */
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NULL, /* setreg.resp_delim */
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NULL, /* setreg.term */
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NULL, /* setreg.term_cmd */
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},
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{
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"m %x\r", /* getmem.cmdb (addr, len) */
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"m %x;w\r", /* getmem.cmdw (addr, len) */
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"m %x;l\r", /* getmem.cmdl (addr, len) */
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NULL, /* getmem.cmdll (addr, len) */
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"^ [0-9A-F]+ ", /* getmem.resp_delim */
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"? ", /* getmem.term */
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".\r", /* getmem.term_cmd */
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},
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{
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".%s %x\r", /* setreg.cmd (name, value) */
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NULL, /* setreg.resp_delim */
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NULL, /* setreg.term */
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NULL /* setreg.term_cmd */
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},
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{
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".%s\r", /* getreg.cmd (name) */
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"=", /* getreg.resp_delim */
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"? ", /* getreg.term */
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".\r" /* getreg.term_cmd */
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},
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"r\r", /* dump_registers */
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/* register_pattern */
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"\\(\\w+\\)=\\([0-9a-fA-F]+\\( +[0-9a-fA-F]+\\b\\)*\\)",
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sh3_supply_register, /* supply_register */
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sh3_load, /* load_routine */
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NULL, /* download command */
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NULL, /* Load response */
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"\n:", /* monitor command prompt */
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"\r", /* end-of-line terminator */
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".\r", /* optional command terminator */
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&sh3_ops, /* target operations */
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SERIAL_1_STOPBITS, /* number of stop bits */
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sh3_regnames, /* registers names */
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MONITOR_OPS_MAGIC /* magic */
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};
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static void
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sh3_open (args, from_tty)
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char *args;
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int from_tty;
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{
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monitor_open (args, &sh3_cmds, from_tty);
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}
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void
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_initialize_sh3 ()
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{
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init_monitor_ops (&sh3_ops);
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sh3_ops.to_shortname = "sh3";
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sh3_ops.to_longname = "Hitachi SH-3 rom monitor";
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sh3_ops.to_doc = "Debug on a Hitachi eval board running the SH-3 rom monitor.\n\
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Specify the serial device it is connected to (e.g. /dev/ttya).";
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sh3_ops.to_open = sh3_open;
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add_target (&sh3_ops);
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}
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