-/* Remote target glue for the rom68k ROM monitor. This was running on a
-Motorola IDP board.
+/* Remote target glue for the ROM68K ROM monitor.
+ Copyright 1988, 1991, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 2001
+ Free Software Foundation, Inc.
- Copyright 1988, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+ This file is part of GDB.
-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 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.
-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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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 "value.h"
-extern int baud_rate;
-
-void rom68k_open();
-void monitor_open();
-
-/*
- * this array of registers need to match the indexes used by GDB. The
- * whole reason this exists is cause the various ROM monitors use
- * different strings than GDB does, and doesn't support all the
- * registers either. So, typing "info reg sp" becomes a "r30".
- */
-static char *rom68k_regnames[] = {
- "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "a0", "a1",
- "a2", "a3", "a4", "a5", "a6", "usp", "ssp","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.
- */
-
-struct target_ops rom68k_ops = {
- "rom68k",
- "WinBond's debug monitor for the Rom68k Eval board",
- "Debug on a Motorola IDP eval board running the ROM68K monitor.\n\
-Specify the serial device it is connected to (e.g. /dev/ttya).",
- rom68k_open,
- monitor_close,
- monitor_attach,
- monitor_detach,
- monitor_resume,
- monitor_wait,
- monitor_fetch_register,
- monitor_store_register,
- monitor_prepare_to_store,
- monitor_xfer_inferior_memory,
- monitor_files_info,
- monitor_insert_breakpoint,
- monitor_remove_breakpoint, /* Breakpoints */
- 0,
- 0,
- 0,
- 0,
- 0, /* Terminal handling */
- monitor_kill,
- monitor_load, /* load */
- 0, /* lookup_symbol */
- monitor_create_inferior,
- monitor_mourn_inferior,
- 0, /* can_run */
- 0, /* notice_signals */
- 0, /* to_stop */
- process_stratum,
- 0, /* next */
- 1,
- 1,
- 1,
- 1,
- 1, /* all mem, mem, stack, regs, exec */
- 0,
- 0, /* Section pointers */
- OPS_MAGIC /* Always the last thing */
-};
-
-struct monitor_ops rom68k_cmds = {
- 1, /* 1 for ASCII, 0 for binary */
- "\n", /* monitor init string */
- "go \n", /* execute or usually GO command */
- "go \n", /* continue command */
- "st \n", /* single step */
- "db %x\n", /* set a breakpoint */
- "cb %x\r", /* clear a breakpoint */
- 0, /* 0 for number, 1 for address */
- {
- "pm %x %x\r", /* set memory */
- "=", /* delimiter */
- "", /* the result */
- },
- {
- "dm %x 1\r", /* get memory */
- "", /* delimiter */
- "", /* the result */
- },
- {
- "pr %s %x\r", /* set a register */
- "", /* delimiter between registers */
- "", /* the result */
- },
+#include "m68k-tdep.h"
+
+static void rom68k_open (char *args, int from_tty);
+
+/* Return true if C is a hex digit.
+ We can't use isxdigit here: that is affected by the current locale;
+ ROM68K is not. */
+static int
+is_hex_digit (int c)
+{
+ return (('0' <= c && c <= '9')
+ || ('a' <= c && c <= 'f')
+ || ('A' <= c && c <= 'F'));
+}
+
+
+/* Convert hex digit A to a number. */
+static int
+hex_digit_value (int a)
+{
+ if (a >= '0' && a <= '9')
+ return a - '0';
+ else if (a >= 'a' && a <= 'f')
+ return a - 'a' + 10;
+ else if (a >= 'A' && a <= 'F')
+ return a - 'A' + 10;
+ else
+ error ("Invalid hex digit %d", a);
+}
+
+
+/* Return true iff C is a whitespace character.
+ We can't use isspace here: that is affected by the current locale;
+ ROM68K is not. */
+static int
+is_whitespace (int c)
+{
+ return (c == ' '
+ || c == '\r'
+ || c == '\n'
+ || c == '\t'
+ || c == '\f');
+}
+
+
+/* Parse a string of hex digits starting at HEX, supply them as the
+ value of register REGNO, skip any whitespace, and return a pointer
+ to the next character.
+
+ There is a function in monitor.c, monitor_supply_register, which is
+ supposed to do this job. However, there is some rather odd stuff
+ in there (whitespace characters don't terminate numbers, for
+ example) that is incorrect for ROM68k. It's basically impossible
+ to safely tweak monitor_supply_register --- it's used by a zillion
+ other monitors; who knows what behaviors they're depending on. So
+ instead, we'll just use our own function, which can behave exactly
+ the way we want it to. */
+static char *
+rom68k_supply_one_register (int regno, unsigned char *hex)
+{
+ ULONGEST value;
+ unsigned char *regbuf = alloca (max_register_size (current_gdbarch));
+
+ value = 0;
+ while (*hex != '\0')
+ if (is_hex_digit (*hex))
+ value = (value * 16) + hex_digit_value (*hex++);
+ else
+ break;
+
+ /* Skip any whitespace. */
+ while (is_whitespace (*hex))
+ hex++;
+
+ store_unsigned_integer (regbuf, REGISTER_RAW_SIZE (regno), value);
+ supply_register (regno, regbuf);
+
+ return hex;
+}
+
+
+static void
+rom68k_supply_register (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 = PS_REGNUM;
+ break;
+ case 'P':
+ if (regname[1] == 'C')
+ regno = PC_REGNUM;
+ break;
+ case 'D':
+ if (regname[1] != 'R')
+ break;
+ regno = M68K_D0_REGNUM;
+ numregs = 8;
+ break;
+ case 'A':
+ if (regname[1] != 'R')
+ break;
+ regno = M68K_A0_REGNUM;
+ numregs = 7;
+ break;
+ }
+ else if (regnamelen == 3)
+ switch (regname[0])
+ {
+ case 'I':
+ if (regname[1] == 'S' && regname[2] == 'P')
+ regno = SP_REGNUM;
+ }
+
+ if (regno >= 0)
+ while (numregs-- > 0)
+ val = rom68k_supply_one_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 const char *
+rom68k_regname (int index)
+{
+
+ static char *regnames[] =
{
- "pr %s\n", /* get a register */
- ":", /* delimiter between registers */
- "", /* the result */
- },
- "dc\n", /* download command */
- "ROM68K :->", /* monitor command prompt */
- "=", /* end-of-command delimitor */
- ".\n", /* optional command terminator */
- &rom68k_ops, /* target operations */
- "none,srec,default", /* load types */
- "none", /* load protocols */
- rom68k_regnames /* registers names */
-};
+ "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
+ "A0", "A1", "A2", "A3", "A4", "A5", "A6", "ISP",
+ "SR", "PC"
+ };
+
+ if ((index >= (sizeof (regnames) / sizeof(regnames[0])))
+ || (index < 0) || (index >= NUM_REGS))
+ return NULL;
+ else
+ return regnames[index];
-void
-rom68k_open(args, from_tty)
- char *args;
- int from_tty;
+}
+
+/* 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 rom68k_ops;
+
+static char *rom68k_inits[] =
+{".\r\r", NULL}; /* Exits pm/pr & download cmds */
+
+static struct monitor_ops rom68k_cmds;
+
+static void
+init_rom68k_cmds (void)
+{
+ rom68k_cmds.flags = MO_PRINT_PROGRAM_OUTPUT;
+ rom68k_cmds.init = rom68k_inits; /* monitor init string */
+ rom68k_cmds.cont = "go\r";
+ rom68k_cmds.step = "st\r";
+ rom68k_cmds.stop = NULL;
+ rom68k_cmds.set_break = "db %x\r";
+ rom68k_cmds.clr_break = "cb %x\r";
+ rom68k_cmds.clr_all_break = "cb *\r";
+ rom68k_cmds.fill = "fm %x %x %x\r";
+ rom68k_cmds.setmem.cmdb = "pm %x %x\r";
+ rom68k_cmds.setmem.cmdw = "pm.w %x %x\r";
+ rom68k_cmds.setmem.cmdl = "pm.l %x %x\r";
+ rom68k_cmds.setmem.cmdll = NULL;
+ rom68k_cmds.setmem.resp_delim = NULL;
+ rom68k_cmds.setmem.term = NULL;
+ rom68k_cmds.setmem.term_cmd = NULL;
+ rom68k_cmds.getmem.cmdb = "dm %x %x\r";
+ rom68k_cmds.getmem.cmdw = "dm.w %x %x\r";
+ rom68k_cmds.getmem.cmdl = "dm.l %x %x\r";
+ rom68k_cmds.getmem.cmdll = NULL;
+ rom68k_cmds.getmem.resp_delim = " ";
+ rom68k_cmds.getmem.term = NULL;
+ rom68k_cmds.getmem.term_cmd = NULL;
+ rom68k_cmds.setreg.cmd = "pr %s %x\r";
+ rom68k_cmds.setreg.resp_delim = NULL;
+ rom68k_cmds.setreg.term = NULL;
+ rom68k_cmds.setreg.term_cmd = NULL;
+ rom68k_cmds.getreg.cmd = "pr %s\r";
+ rom68k_cmds.getreg.resp_delim = ": ";
+ rom68k_cmds.getreg.term = "= ";
+ rom68k_cmds.getreg.term_cmd = ".\r";
+ rom68k_cmds.dump_registers = "dr\r";
+ rom68k_cmds.register_pattern =
+ "\\(\\w+\\)=\\([0-9a-fA-F]+\\( +[0-9a-fA-F]+\\b\\)*\\)";
+ rom68k_cmds.supply_register = rom68k_supply_register;
+ rom68k_cmds.load_routine = NULL;
+ rom68k_cmds.load = "dc\r";
+ rom68k_cmds.loadresp = "Waiting for S-records from host... ";
+ rom68k_cmds.prompt = "ROM68K :-> ";
+ rom68k_cmds.line_term = "\r";
+ rom68k_cmds.cmd_end = ".\r";
+ rom68k_cmds.target = &rom68k_ops;
+ rom68k_cmds.stopbits = SERIAL_1_STOPBITS;
+ rom68k_cmds.regnames = NULL;
+ rom68k_cmds.regname = rom68k_regname;
+ rom68k_cmds.magic = MONITOR_OPS_MAGIC;
+} /* init_rom68k_cmds */
+
+static void
+rom68k_open (char *args, int from_tty)
{
- target_preopen(from_tty);
- push_target (&rom68k_ops);
- push_monitor (&rom68k_cmds);
- monitor_open (args, "rom68k", from_tty);
+ monitor_open (args, &rom68k_cmds, from_tty);
}
void
-_initialize_rom68k ()
+_initialize_rom68k (void)
{
- add_target (&rom68k_ops);
+ init_rom68k_cmds ();
+ init_monitor_ops (&rom68k_ops);
+
+ rom68k_ops.to_shortname = "rom68k";
+ rom68k_ops.to_longname = "Rom68k debug monitor for the IDP Eval board";
+ rom68k_ops.to_doc = "Debug on a Motorola IDP eval board running the ROM68K monitor.\n\
+Specify the serial device it is connected to (e.g. /dev/ttya).";
+ rom68k_ops.to_open = rom68k_open;
- /* this is the default, since it's the only baud rate supported by the hardware */
- baud_rate = 9600;
+ add_target (&rom68k_ops);
}
projects / deliverable / binutils-gdb.git / blobdiff