7952bce6fc
send_xmodem_packet shows up to do the obvious. Lots of fixes to xmodem downloads including resetting of block number at start of new transfers, fix for buffer overrun problem, addition of CRC generation code. * (monitor_open): loadtype_str and loadproto_str now default to first entry in monitor_ops->loadtypes. * (monitor_wait): Lengthen register dump buf, because of verbose Winbond monitor. * (monitor_fetch_register): Report unimplemented registers as 0. * (monitor_read_memory): Only do 16 byte aligned transfers because of formatting weirdness with the Winbond monitor. Also, ignore non-hex, non-whitespace formatting between bytes (same monitor). * (monitor_load): Clean up logic. * (monitor_load_srec): Re-do xmodem support. Move lots of it into send_xmodem_packet. * (getacknak): Get rid of polls and timeouts. Handle CRC requests from receiver. * (monitor_make_srec): Efficiency improvements. Don't call sprintf to output two digit hex numbers. * (crcinit, docrc): New, CRC-16 support routines. * (send_xmodem_packet): New routine to generate either CRC-16 or checksummed xmodem packets. * remote-est.c (est_loadtypes), rom68k-rom.c (rom68k_loadtypes): Reduce tables down to only the load types supported by each monitor. * w89k-rom.c (w89k_supply_register): Parses output of Winbond register dumps. * (w89k_loadtypes, w89k_loadprotos): Reduce to just srec/xmodem. * (w89k_cmds): Add clear all breakpoints, memory fill, and dump registers commands.
186 lines
5.2 KiB
C
186 lines
5.2 KiB
C
/* Remote target glue for the rom68k ROM monitor. This was running on a
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Motorola IDP board.
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Copyright 1988, 1991, 1992, 1993, 1994 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., 675 Mass Ave, Cambridge, MA 02139, 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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static void rom68k_open PARAMS ((char *args, int from_tty));
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static void
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rom68k_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 = PS_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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break;
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case 'D':
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if (regname[1] != 'R')
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break;
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regno = D0_REGNUM;
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numregs = 8;
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break;
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case 'A':
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if (regname[1] != 'R')
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break;
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regno = A0_REGNUM;
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numregs = 7;
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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 'I':
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if (regname[1] == 'S' && regname[2] == 'P')
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regno = SP_REGNUM;
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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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/*
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* this array of registers need to match the indexes used by GDB. The
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* whole reason this exists is cause the various ROM monitors use
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* different strings than GDB does, and doesn't support all the
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* registers either. So, typing "info reg sp" becomes a "r30".
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*/
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static char *rom68k_regnames[NUM_REGS] = {
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"D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
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"A0", "A1", "A2", "A3", "A4", "A5", "A6", "ISP",
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"SR", "PC" };
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/*
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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 need can include formatting
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* strings. We also need a CR or LF on the end.
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*/
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static struct target_ops rom68k_ops;
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static char *rom68k_loadtypes[] = {"srec", NULL};
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static char *rom68k_loadprotos[] = {"none", NULL};
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static char *rom68k_inits[] = {".\r\r", NULL}; /* Exits pm/pr & download cmds */
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static struct monitor_ops rom68k_cmds =
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{
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0, /* flags */
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rom68k_inits, /* monitor init string */
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"go\r", /* continue command */
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"st\r", /* single step */
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NULL, /* No way to interrupt program */
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"db %x\r", /* set a breakpoint */
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"cb %x\r", /* clear a breakpoint */
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"cb *\r", /* clear all breakpoints */
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"fm %x %x %x\r", /* fill (start len val) */
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{
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"pm %x %x\r", /* setmem.cmdb (addr, value) */
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"pm.w %x %x\r", /* setmem.cmdw (addr, value) */
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"pm.l %x %x\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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"dm %x %x\r", /* getmem.cmdb (addr, len) */
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"dm.w %x %x\r", /* getmem.cmdw (addr, len) */
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"dm.l %x %x\r", /* getmem.cmdl (addr, len) */
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NULL, /* getmem.cmdll (addr, len) */
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" ", /* getmem.resp_delim */
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NULL, /* getmem.term */
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NULL, /* getmem.term_cmd */
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},
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{
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"pr %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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"pr %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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"dr\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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rom68k_supply_register, /* supply_register */
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"dc\r", /* download command */
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"Waiting for S-records from host... ", /* Load response */
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"ROM68K :->", /* monitor command prompt */
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"=", /* end-of-command delimitor */
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".\r", /* optional command terminator */
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&rom68k_ops, /* target operations */
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rom68k_loadtypes, /* loadtypes */
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rom68k_loadprotos, /* loadprotos */
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"9600", /* supported baud rates */
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SERIAL_1_STOPBITS, /* number of stop bits */
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rom68k_regnames, /* registers names */
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MONITOR_OPS_MAGIC /* magic */
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};
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void
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rom68k_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, &rom68k_cmds, from_tty);
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}
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void
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_initialize_rom68k ()
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{
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init_monitor_ops (&rom68k_ops);
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rom68k_ops.to_shortname = "rom68k";
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rom68k_ops.to_longname = "Rom68k debug monitor for the IDP Eval board";
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rom68k_ops.to_doc = "Debug on a Motorola IDP eval board running the ROM68K monitor.\n\
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Specify the serial device it is connected to (e.g. /dev/ttya).";
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rom68k_ops.to_open = rom68k_open;
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add_target (&rom68k_ops);
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/* this is the default, since it's the only baud rate supported by the hardware */
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baud_rate = 9600;
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}
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