ba4d67c2bf
* sol-thread.c abug-rom.c cpu32bug-rom.c dbug-rom.c m32r-rom.c mac-nat.c mon960-rom.c op50-rom.c ppc-bdm.c remote-adapt.c remote-array.c remote-bug.c remote-e7000.c remote-eb.c remote-es.c remote-est.c remote-hms.c remote-mm.c remote-nindy.c remote-nrom.c remote-os9k.c remote-rdp.c remote-sds.c remote-sim.c remote-st.c remote-udi.c rom68k-rom.c sh3-rom.c sparcl-tdep.c sparclet-rom.c v850ice.c win32-nat.c: cosmetic changes to conform to coding standards.
1500 lines
33 KiB
C
1500 lines
33 KiB
C
/* Remote debugging interface for Hitachi HMS Monitor Version 1.0
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Copyright 1995 Free Software Foundation, Inc.
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Contributed by Cygnus Support. Written by Steve Chamberlain
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(sac@cygnus.com).
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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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static void hms_open PARAMS ((char *args, int from_tty));
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static void
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hms_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 regno;
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if (regnamelen != 2)
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return;
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if (regname[0] != 'P')
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return;
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/* We scan off all the registers in one go */
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val = monitor_supply_register (PC_REGNUM, val);
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/* Skip the ccr string */
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while (*val != '=' && *val)
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val++;
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val = monitor_supply_register (CCR_REGNUM, val + 1);
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/* Skip up to rest of regs */
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while (*val != '=' && *val)
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val++;
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for (regno = 0; regno < 7; regno++)
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{
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val = monitor_supply_register (regno, val + 1);
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}
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}
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/*
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* This array of registers needs to match the indexes used by GDB. The
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* whole reason this exists is because the various ROM monitors use
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* different names than GDB does, and don'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 *hms_regnames[NUM_REGS] =
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{
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"R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", "CCR", "PC"
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};
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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 hms_ops;
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static char *hms_inits[] =
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{"\003", /* Resets the prompt, and clears repeated cmds */
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NULL};
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static struct monitor_ops hms_cmds ;
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static void
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init_hms_cmds(void)
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{
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hms_cmds.flags = MO_CLR_BREAK_USES_ADDR | MO_FILL_USES_ADDR | MO_GETMEM_NEEDS_RANGE;
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hms_cmds.init = hms_inits; /* Init strings */
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hms_cmds.cont = "g\r"; /* continue command */
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hms_cmds.step = "s\r"; /* single step */
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hms_cmds.stop = "\003"; /* ^C interrupts the program */
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hms_cmds.set_break = "b %x\r"; /* set a breakpoint */
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hms_cmds.clr_break = "b - %x\r"; /* clear a breakpoint */
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hms_cmds.clr_all_break = "b -\r"; /* clear all breakpoints */
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hms_cmds.fill = "f %x %x %x\r"; /* fill (start end val) */
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hms_cmds.setmem.cmdb = "m.b %x=%x\r"; /* setmem.cmdb (addr, value) */
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hms_cmds.setmem.cmdw = "m.w %x=%x\r"; /* setmem.cmdw (addr, value) */
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hms_cmds.setmem.cmdl = NULL; /* setmem.cmdl (addr, value) */
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hms_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */
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hms_cmds.setmem.resp_delim = NULL;/* setreg.resp_delim */
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hms_cmds.setmem.term = NULL; /* setreg.term */
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hms_cmds.setmem.term_cmd = NULL; /* setreg.term_cmd */
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hms_cmds.getmem.cmdb = "m.b %x %x\r"; /* getmem.cmdb (addr, addr) */
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hms_cmds.getmem.cmdw = "m.w %x %x\r"; /* getmem.cmdw (addr, addr) */
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hms_cmds.getmem.cmdl = NULL; /* getmem.cmdl (addr, addr) */
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hms_cmds.getmem.cmdll = NULL; /* getmem.cmdll (addr, addr) */
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hms_cmds.getmem.resp_delim = ": ";/* getmem.resp_delim */
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hms_cmds.getmem.term = ">"; /* getmem.term */
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hms_cmds.getmem.term_cmd = "\003";/* getmem.term_cmd */
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hms_cmds.setreg.cmd = "r %s=%x\r";/* setreg.cmd (name, value) */
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hms_cmds.setreg.resp_delim = NULL;/* setreg.resp_delim */
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hms_cmds.setreg.term = NULL; /* setreg.term */
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hms_cmds.setreg.term_cmd = NULL; /* setreg.term_cmd */
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hms_cmds.getreg.cmd = "r %s\r"; /* getreg.cmd (name) */
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hms_cmds.getreg.resp_delim = " (";/* getreg.resp_delim */
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hms_cmds.getreg.term = ":"; /* getreg.term */
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hms_cmds.getreg.term_cmd = "\003";/* getreg.term_cmd */
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hms_cmds.dump_registers = "r\r"; /* dump_registers */
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hms_cmds.register_pattern = "\\(\\w+\\)=\\([0-9a-fA-F]+\\)"; /* register_pattern */
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hms_cmds.supply_register = hms_supply_register; /* supply_register */
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hms_cmds.load_routine = NULL; /* load_routine (defaults to SRECs) */
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hms_cmds.load = "tl\r"; /* download command */
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hms_cmds.loadresp = NULL; /* load response */
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hms_cmds.prompt = ">"; /* monitor command prompt */
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hms_cmds.line_term = "\r"; /* end-of-command delimitor */
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hms_cmds.cmd_end = NULL; /* optional command terminator */
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hms_cmds.target = &hms_ops; /* target operations */
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hms_cmds.stopbits = SERIAL_1_STOPBITS;/* number of stop bits */
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hms_cmds.regnames = hms_regnames; /* registers names */
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hms_cmds.magic = MONITOR_OPS_MAGIC; /* magic */
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} /* init_hms-cmds */
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static void
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hms_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, &hms_cmds, from_tty);
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}
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int write_dos_tick_delay;
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void
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_initialize_remote_hms ()
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{
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init_hms_cmds() ;
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init_monitor_ops (&hms_ops);
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hms_ops.to_shortname = "hms";
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hms_ops.to_longname = "Hitachi Microsystems H8/300 debug monitor";
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hms_ops.to_doc = "Debug via the HMS monitor.\n\
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Specify the serial device it is connected to (e.g. /dev/ttya).";
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hms_ops.to_open = hms_open;
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/* By trial and error I've found that this delay doesn't break things */
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write_dos_tick_delay = 1;
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add_target (&hms_ops);
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}
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#if 0
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/* This is kept here because we used to support the H8/500 in this module,
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and I haven't done the H8/500 yet */
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#include "defs.h"
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#include "inferior.h"
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#include "wait.h"
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#include "value.h"
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#include "gdb_string.h"
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#include <ctype.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <setjmp.h>
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#include <errno.h>
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#include "terminal.h"
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#include "target.h"
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#include "gdbcore.h"
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#include "serial.h"
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#include "remote-utils.h"
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/* External data declarations */
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extern int stop_soon_quietly; /* for wait_for_inferior */
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/* Forward data declarations */
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extern struct target_ops hms_ops; /* Forward declaration */
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/* Forward function declarations */
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static void hms_fetch_registers ();
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static int hms_store_registers ();
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static void hms_close ();
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static int hms_clear_breakpoints ();
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extern struct target_ops hms_ops;
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static void hms_drain ();
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static void add_commands ();
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static void remove_commands ();
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static int quiet = 1; /* FIXME - can be removed after Dec '94 */
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/***********************************************************************
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* I/O stuff stolen from remote-eb.c
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***********************************************************************/
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static int timeout = 2;
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static const char *dev_name;
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/* Descriptor for I/O to remote machine. Initialize it to -1 so that
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hms_open knows that we don't have a file open when the program
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starts. */
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static int before = 0xdead;
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static int is_open = 0;
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static int after = 0xdead;
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int
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check_open ()
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{
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if (before != 0xdead
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|| after != 0xdead)
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printf ("OUTCH! \n");
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if (!is_open)
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{
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error ("remote device not open");
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}
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}
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#define ON 1
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#define OFF 0
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/* Read a character from the remote system, doing all the fancy
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timeout stuff. */
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static int
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readchar ()
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{
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int buf;
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buf = SERIAL_READCHAR (desc, timeout);
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if (buf == SERIAL_TIMEOUT)
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{
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hms_write (".\r\n", 3);
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error ("Timeout reading from remote system.");
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}
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if (buf == SERIAL_ERROR)
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{
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error ("Serial port error!");
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}
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if (!quiet || remote_debug)
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printf_unfiltered ("%c", buf);
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return buf & 0x7f;
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}
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static void
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flush ()
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{
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while (1)
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{
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int b = SERIAL_READCHAR (desc, 0);
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if (b == SERIAL_TIMEOUT)
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return;
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}
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}
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static int
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readchar_nofail ()
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{
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int buf;
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buf = SERIAL_READCHAR (desc, timeout);
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if (buf == SERIAL_TIMEOUT)
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buf = 0;
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if (!quiet || remote_debug)
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printf_unfiltered ("%c", buf);
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return buf & 0x7f;
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}
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/* Keep discarding input from the remote system, until STRING is found.
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Let the user break out immediately. */
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static void
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expect (string)
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char *string;
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{
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char *p = string;
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char c;
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immediate_quit = 1;
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while (1)
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{
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c = readchar ();
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if (c == *p)
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{
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p++;
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if (*p == '\0')
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{
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immediate_quit = 0;
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return;
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}
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}
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else
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{
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p = string;
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if (c == *p)
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p++;
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}
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}
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}
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/* Keep discarding input until we see the hms prompt.
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The convention for dealing with the prompt is that you
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o give your command
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o *then* wait for the prompt.
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Thus the last thing that a procedure does with the serial line
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will be an expect_prompt(). Exception: hms_resume does not
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wait for the prompt, because the terminal is being handed over
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to the inferior. However, the next thing which happens after that
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is a hms_wait which does wait for the prompt.
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Note that this includes abnormal exit, e.g. error(). This is
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necessary to prevent getting into states from which we can't
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recover. */
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static void
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expect_prompt ()
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{
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expect ("HMS>");
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}
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/* Get a hex digit from the remote system & return its value.
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If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */
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static int
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get_hex_digit (ignore_space)
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int ignore_space;
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{
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int ch;
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while (1)
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{
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ch = readchar ();
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if (ch >= '0' && ch <= '9')
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return ch - '0';
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else if (ch >= 'A' && ch <= 'F')
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return ch - 'A' + 10;
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else if (ch >= 'a' && ch <= 'f')
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return ch - 'a' + 10;
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else if (ch == ' ' && ignore_space)
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;
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else
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{
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expect_prompt ();
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error ("Invalid hex digit from remote system.");
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}
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}
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}
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/* Get a byte from hms_desc and put it in *BYT. Accept any number
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leading spaces. */
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static void
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get_hex_byte (byt)
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char *byt;
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{
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int val;
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val = get_hex_digit (1) << 4;
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val |= get_hex_digit (0);
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*byt = val;
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}
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/* Read a 32-bit hex word from the hms, preceded by a space */
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static long
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get_hex_word ()
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{
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long val;
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int j;
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val = 0;
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for (j = 0; j < 8; j++)
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val = (val << 4) + get_hex_digit (j == 0);
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return val;
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}
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/* Called when SIGALRM signal sent due to alarm() timeout. */
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/* Number of SIGTRAPs we need to simulate. That is, the next
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NEED_ARTIFICIAL_TRAP calls to hms_wait should just return
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SIGTRAP without actually waiting for anything. */
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static int need_artificial_trap = 0;
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void
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hms_kill (arg, from_tty)
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char *arg;
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int from_tty;
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{
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}
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/* This is called not only when we first attach, but also when the
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user types "run" after having attached. */
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void
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hms_create_inferior (execfile, args, env)
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char *execfile;
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char *args;
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char **env;
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{
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int entry_pt;
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char buffer[100];
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if (args && *args)
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error ("Can't pass arguments to remote hms process.");
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if (execfile == 0 || exec_bfd == 0)
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error ("No executable file specified");
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entry_pt = (int) bfd_get_start_address (exec_bfd);
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check_open ();
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hms_kill (NULL, NULL);
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hms_clear_breakpoints ();
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init_wait_for_inferior ();
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hms_write_cr ("");
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expect_prompt ();
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insert_breakpoints (); /* Needed to get correct instruction in cache */
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proceed (entry_pt, TARGET_SIGNAL_DEFAULT, 0);
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}
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/* Open a connection to a remote debugger.
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NAME is the filename used for communication, then a space,
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then the baud rate.
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*/
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static char *
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find_end_of_word (s)
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char *s;
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{
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while (*s && !isspace (*s))
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s++;
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return s;
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}
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static char *
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get_word (p)
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char **p;
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{
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char *s = *p;
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char *word;
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char *copy;
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size_t len;
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while (isspace (*s))
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s++;
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word = s;
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len = 0;
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while (*s && !isspace (*s))
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{
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s++;
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len++;
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}
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copy = xmalloc (len + 1);
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memcpy (copy, word, len);
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copy[len] = 0;
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*p = s;
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return copy;
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}
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static int baudrate = 9600;
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static int
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is_baudrate_right ()
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{
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int ok;
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/* Put this port into NORMAL mode, send the 'normal' character */
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hms_write ("\001", 1); /* Control A */
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hms_write ("\r\n", 2); /* Cr */
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while (1)
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{
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ok = SERIAL_READCHAR (desc, timeout);
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if (ok < 0)
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break;
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}
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hms_write ("r", 1);
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if (readchar_nofail () == 'r')
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return 1;
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/* Not the right baudrate, or the board's not on */
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return 0;
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}
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static void
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set_rate ()
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{
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if (!SERIAL_SETBAUDRATE (desc, baudrate))
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error ("Can't set baudrate");
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}
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/* Close out all files and local state before this target loses control. */
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static void
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hms_close (quitting)
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int quitting;
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{
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/* Clear any break points */
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remove_commands ();
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hms_clear_breakpoints ();
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sleep (1); /* Let any output make it all the way back */
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if (is_open)
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{
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SERIAL_WRITE (desc, "R\r\n", 3);
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SERIAL_CLOSE (desc);
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}
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is_open = 0;
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}
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/* Terminate the open connection to the remote debugger. Use this
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when you want to detach and do something else with your gdb. */ void
|
|
hms_detach (args, from_tty)
|
|
char *args;
|
|
int from_tty;
|
|
{
|
|
if (is_open)
|
|
{
|
|
hms_clear_breakpoints ();
|
|
}
|
|
|
|
pop_target (); /* calls hms_close to do the real work
|
|
*/
|
|
if (from_tty)
|
|
printf_filtered ("Ending remote %s debugging\n",
|
|
target_shortname);
|
|
}
|
|
|
|
/* Tell the remote machine to resume. */
|
|
|
|
void
|
|
hms_resume (pid, step, sig)
|
|
int pid, step;
|
|
enum target_signal
|
|
sig;
|
|
{
|
|
if (step)
|
|
{
|
|
hms_write_cr ("s");
|
|
expect ("Step>");
|
|
|
|
/* Force the next hms_wait to return a trap. Not doing anything
|
|
about I/O from the target means that the user has to type "continue"
|
|
to see any. FIXME, this should be fixed. */
|
|
need_artificial_trap = 1;
|
|
}
|
|
else
|
|
{
|
|
hms_write_cr ("g");
|
|
expect ("g");
|
|
}
|
|
}
|
|
|
|
/* Wait until the remote machine stops, then return, storing status in
|
|
STATUS just as `wait' would. */
|
|
|
|
int
|
|
hms_wait (pid, status)
|
|
int pid;
|
|
struct target_waitstatus *status;
|
|
{
|
|
/* Strings to look for. '?' means match any single character. Note
|
|
that with the algorithm we use, the initial character of the string
|
|
cannot recur in the string, or we will not find some cases of the
|
|
string in the input. */
|
|
|
|
static char bpt[] = "At breakpoint:";
|
|
|
|
/* It would be tempting to look for "\n[__exit + 0x8]\n" but that
|
|
requires loading symbols with "yc i" and even if we did do that we
|
|
don't know that the file has symbols. */
|
|
static char exitmsg[] = "HMS>";
|
|
char *bp = bpt;
|
|
char *ep = exitmsg;
|
|
|
|
/* Large enough for either sizeof (bpt) or sizeof (exitmsg) chars.
|
|
*/
|
|
char swallowed[50];
|
|
|
|
/* Current position in swallowed. */
|
|
char *swallowed_p = swallowed;
|
|
|
|
int ch;
|
|
int ch_handled;
|
|
int old_timeout = timeout;
|
|
int
|
|
old_immediate_quit = immediate_quit;
|
|
int swallowed_cr = 0;
|
|
|
|
status->kind = TARGET_WAITKIND_EXITED;
|
|
status->value.integer = 0;
|
|
|
|
if (need_artificial_trap != 0)
|
|
{
|
|
status->kind =
|
|
TARGET_WAITKIND_STOPPED;
|
|
status->value.sig = TARGET_SIGNAL_TRAP;
|
|
need_artificial_trap--;
|
|
return 0;
|
|
}
|
|
|
|
timeout = 5; /* Don't time out for a while - user program is running.
|
|
*/
|
|
immediate_quit = 1; /* Helps ability to QUIT */
|
|
while (1)
|
|
{
|
|
QUIT; /* Let user quit and leave process running */
|
|
ch_handled = 0;
|
|
ch = readchar ();
|
|
if (ch == *bp)
|
|
{
|
|
bp++;
|
|
if (*bp == '\0')
|
|
break;
|
|
ch_handled = 1;
|
|
|
|
*swallowed_p++ = ch;
|
|
}
|
|
else
|
|
{
|
|
bp = bpt;
|
|
}
|
|
if
|
|
(ch == *ep || *ep == '?')
|
|
{
|
|
ep++;
|
|
if (*ep == '\0')
|
|
break;
|
|
|
|
if (!ch_handled)
|
|
*swallowed_p++ = ch;
|
|
ch_handled =
|
|
1;
|
|
}
|
|
else
|
|
{
|
|
ep = exitmsg;
|
|
}
|
|
|
|
if (!ch_handled)
|
|
{
|
|
char *p;
|
|
|
|
/* Print out any characters which have been swallowed. */
|
|
for (p = swallowed; p < swallowed_p; ++p)
|
|
putchar_unfiltered (*p);
|
|
swallowed_p = swallowed;
|
|
|
|
if ((ch != '\r' && ch != '\n') || swallowed_cr > 10)
|
|
{
|
|
putchar_unfiltered (ch);
|
|
swallowed_cr = 10;
|
|
}
|
|
swallowed_cr++;
|
|
|
|
}
|
|
}
|
|
if (*bp == '\0')
|
|
{
|
|
status->kind = TARGET_WAITKIND_STOPPED;
|
|
status->value.sig = TARGET_SIGNAL_TRAP;
|
|
expect_prompt ();
|
|
}
|
|
else
|
|
{
|
|
status->kind = TARGET_WAITKIND_EXITED;
|
|
status->value.integer =
|
|
TARGET_SIGNAL_STOP;
|
|
}
|
|
|
|
timeout = old_timeout;
|
|
immediate_quit = old_immediate_quit;
|
|
return
|
|
0;
|
|
}
|
|
|
|
/* Return the name of register number REGNO in the form input and
|
|
output by hms.
|
|
|
|
Returns a pointer to a static buffer containing the answer. */
|
|
static char *
|
|
get_reg_name (regno)
|
|
int regno;
|
|
{
|
|
static char *rn[] =
|
|
REGISTER_NAMES;
|
|
|
|
return rn[regno];
|
|
}
|
|
|
|
/* Read the remote registers. */
|
|
|
|
static int
|
|
gethex (length, start, ok)
|
|
unsigned int length;
|
|
char *start;
|
|
int *ok;
|
|
{
|
|
int result = 0;
|
|
|
|
while (length--)
|
|
{
|
|
result <<= 4;
|
|
if (*start >= 'a' && *start <= 'f')
|
|
{
|
|
result += *start - 'a' + 10;
|
|
}
|
|
else if (*start >= 'A' &&
|
|
*start <= 'F')
|
|
{
|
|
result += *start - 'A' + 10;
|
|
}
|
|
else if
|
|
(*start >= '0' && *start <= '9')
|
|
{
|
|
result += *start - '0';
|
|
}
|
|
else
|
|
*ok = 0;
|
|
start++;
|
|
|
|
}
|
|
return result;
|
|
}
|
|
static int
|
|
timed_read (buf, n, timeout)
|
|
char
|
|
*buf;
|
|
|
|
{
|
|
int i;
|
|
char c;
|
|
|
|
i = 0;
|
|
while (i < n)
|
|
{
|
|
c = readchar ();
|
|
|
|
if (c == 0)
|
|
return i;
|
|
buf[i] = c;
|
|
i++;
|
|
|
|
}
|
|
return i;
|
|
}
|
|
|
|
hms_write (a, l)
|
|
char *a;
|
|
{
|
|
int i;
|
|
|
|
SERIAL_WRITE (desc, a, l);
|
|
|
|
if (!quiet || remote_debug)
|
|
{
|
|
printf_unfiltered ("<");
|
|
for (i = 0; i < l; i++)
|
|
{
|
|
printf_unfiltered ("%c", a[i]);
|
|
}
|
|
printf_unfiltered (">");
|
|
}
|
|
}
|
|
|
|
hms_write_cr (s)
|
|
char *s;
|
|
{
|
|
hms_write (s, strlen (s));
|
|
hms_write ("\r\n", 2);
|
|
}
|
|
|
|
#ifdef GDB_TARGET_IS_H8500
|
|
|
|
/* H8/500 monitor reg dump looks like:
|
|
|
|
HMS>r
|
|
PC:8000 SR:070C .7NZ.. CP:00 DP:00 EP:00 TP:00 BR:00
|
|
R0-R7: FF5A 0001 F4FE F500 0000 F528 F528 F4EE
|
|
HMS>
|
|
|
|
|
|
*/
|
|
|
|
supply_val (n, size, ptr, segptr)
|
|
int n;
|
|
int size;
|
|
char *ptr;
|
|
char *segptr;
|
|
{
|
|
int ok;
|
|
char raw[4];
|
|
switch (size)
|
|
{
|
|
case 2:
|
|
raw[0] = gethex (2, ptr, &ok);
|
|
raw[1] = gethex (2, ptr + 2, &ok);
|
|
supply_register (n, raw);
|
|
break;
|
|
case 1:
|
|
raw[0] = gethex (2, ptr, &ok);
|
|
supply_register (n, raw);
|
|
break;
|
|
case 4:
|
|
{
|
|
int v = gethex (4, ptr, &ok);
|
|
v |= gethex (2, segptr, &ok) << 16;
|
|
raw[0] = 0;
|
|
raw[1] = (v >> 16) & 0xff;
|
|
raw[2] = (v >> 8) & 0xff;
|
|
raw[3] = (v >> 0) & 0xff;
|
|
supply_register (n, raw);
|
|
}
|
|
}
|
|
|
|
}
|
|
static void
|
|
hms_fetch_register (dummy)
|
|
int dummy;
|
|
{
|
|
#define REGREPLY_SIZE 108
|
|
char linebuf[REGREPLY_SIZE + 1];
|
|
int i;
|
|
int s;
|
|
int gottok;
|
|
|
|
LONGEST reg[NUM_REGS];
|
|
check_open ();
|
|
|
|
do
|
|
{
|
|
|
|
hms_write_cr ("r");
|
|
expect ("r");
|
|
s = timed_read (linebuf + 1, REGREPLY_SIZE, 1);
|
|
|
|
linebuf[REGREPLY_SIZE] = 0;
|
|
gottok = 0;
|
|
if (linebuf[3] == 'P' &&
|
|
linebuf[4] == 'C' &&
|
|
linebuf[5] == ':' &&
|
|
linebuf[105] == 'H' &&
|
|
linebuf[106] == 'M' &&
|
|
linebuf[107] == 'S')
|
|
{
|
|
|
|
/*
|
|
012
|
|
r**
|
|
-------1---------2---------3---------4---------5-----
|
|
345678901234567890123456789012345678901234567890123456
|
|
PC:8000 SR:070C .7NZ.. CP:00 DP:00 EP:00 TP:00 BR:00**
|
|
---6---------7---------8---------9--------10----
|
|
789012345678901234567890123456789012345678901234
|
|
R0-R7: FF5A 0001 F4FE F500 0000 F528 F528 F4EE**
|
|
|
|
56789
|
|
HMS>
|
|
*/
|
|
gottok = 1;
|
|
|
|
|
|
supply_val (PC_REGNUM, 4, linebuf + 6, linebuf + 29);
|
|
|
|
supply_val (CCR_REGNUM, 2, linebuf + 14);
|
|
supply_val (SEG_C_REGNUM, 1, linebuf + 29);
|
|
supply_val (SEG_D_REGNUM, 1, linebuf + 35);
|
|
supply_val (SEG_E_REGNUM, 1, linebuf + 41);
|
|
supply_val (SEG_T_REGNUM, 1, linebuf + 47);
|
|
for (i = 0; i < 8; i++)
|
|
{
|
|
static int sr[8] =
|
|
{35, 35, 35, 35,
|
|
41, 41, 47, 47};
|
|
|
|
char raw[4];
|
|
char *src = linebuf + 64 + 5 * i;
|
|
char *segsrc = linebuf + sr[i];
|
|
supply_val (R0_REGNUM + i, 2, src);
|
|
supply_val (PR0_REGNUM + i, 4, src, segsrc);
|
|
}
|
|
}
|
|
if (!gottok)
|
|
{
|
|
hms_write_cr ("");
|
|
expect ("HMS>");
|
|
}
|
|
}
|
|
while (!gottok);
|
|
}
|
|
#endif
|
|
|
|
#ifdef GDB_TARGET_IS_H8300
|
|
static void
|
|
hms_fetch_register (dummy)
|
|
int dummy;
|
|
{
|
|
#define REGREPLY_SIZE 79
|
|
char linebuf[REGREPLY_SIZE + 1];
|
|
int i;
|
|
int s;
|
|
int gottok;
|
|
|
|
ULONGEST reg[NUM_REGS];
|
|
|
|
check_open ();
|
|
|
|
do
|
|
{
|
|
hms_write_cr ("r");
|
|
|
|
s = timed_read (linebuf, 1, 1);
|
|
|
|
while (linebuf[0] != 'r')
|
|
s = timed_read (linebuf, 1, 1);
|
|
|
|
s = timed_read (linebuf + 1, REGREPLY_SIZE - 1, 1);
|
|
|
|
linebuf[REGREPLY_SIZE] = 0;
|
|
gottok = 0;
|
|
if (linebuf[0] == 'r' &&
|
|
linebuf[3] == 'P' &&
|
|
linebuf[4] == 'C' &&
|
|
linebuf[5] == '=' &&
|
|
linebuf[75] == 'H' &&
|
|
linebuf[76] == 'M' &&
|
|
linebuf[77] == 'S')
|
|
{
|
|
/*
|
|
PC=XXXX CCR=XX:XXXXXXXX R0-R7= XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX
|
|
5436789012345678901234567890123456789012345678901234567890123456789012
|
|
0 1 2 3 4 5 6
|
|
*/
|
|
gottok = 1;
|
|
|
|
reg[PC_REGNUM] = gethex (4, linebuf + 6, &gottok);
|
|
reg[CCR_REGNUM] = gethex (2, linebuf + 15, &gottok);
|
|
for (i = 0; i < 8; i++)
|
|
{
|
|
reg[i] = gethex (4, linebuf + 34 + 5 * i, &gottok);
|
|
}
|
|
}
|
|
}
|
|
while (!gottok);
|
|
for (i = 0; i < NUM_REGS; i++)
|
|
{
|
|
char swapped[2];
|
|
|
|
swapped[1] = reg[i];
|
|
swapped[0] = (reg[i]) >> 8;
|
|
|
|
supply_register (i, swapped);
|
|
}
|
|
}
|
|
#endif
|
|
/* Store register REGNO, or all if REGNO == -1.
|
|
Return errno value. */
|
|
static void
|
|
hms_store_register (regno)
|
|
int regno;
|
|
{
|
|
if (regno == -1)
|
|
{
|
|
for (regno = 0; regno < NUM_REGS; regno++)
|
|
{
|
|
hms_store_register (regno);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
char *name = get_reg_name (regno);
|
|
char buffer[100];
|
|
/* Some regs dont really exist */
|
|
if (!(name[0] == 'p' && name[1] == 'r')
|
|
&& !(name[0] == 'c' && name[1] == 'y')
|
|
&& !(name[0] == 't' && name[1] == 'i')
|
|
&& !(name[0] == 'i' && name[1] == 'n'))
|
|
{
|
|
sprintf (buffer, "r %s=%x", name, read_register (regno));
|
|
hms_write_cr (buffer);
|
|
expect_prompt ();
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* Get ready to modify the registers array. On machines which store
|
|
individual registers, this doesn't need to do anything. On machines
|
|
which store all the registers in one fell swoop, this makes sure
|
|
that registers contains all the registers from the program being
|
|
debugged. */
|
|
|
|
void
|
|
hms_prepare_to_store ()
|
|
{
|
|
/* Do nothing, since we can store individual regs */
|
|
}
|
|
|
|
static CORE_ADDR
|
|
translate_addr (addr)
|
|
CORE_ADDR addr;
|
|
{
|
|
|
|
return (addr);
|
|
|
|
}
|
|
|
|
|
|
int
|
|
hms_xfer_inferior_memory (memaddr, myaddr, len, write, target)
|
|
CORE_ADDR memaddr;
|
|
char *myaddr;
|
|
int len;
|
|
int write;
|
|
struct target_ops *target; /* ignored */
|
|
{
|
|
|
|
return len;
|
|
}
|
|
|
|
int
|
|
hms_write_inferior_memory (memaddr, myaddr, len)
|
|
CORE_ADDR memaddr;
|
|
unsigned char *myaddr;
|
|
int len;
|
|
{
|
|
bfd_vma addr;
|
|
int done;
|
|
int todo;
|
|
char buffer[100];
|
|
done = 0;
|
|
hms_write_cr (".");
|
|
expect_prompt ();
|
|
while (done < len)
|
|
{
|
|
char *ptr = buffer;
|
|
int thisgo;
|
|
int idx;
|
|
|
|
thisgo = len - done;
|
|
if (thisgo > 20)
|
|
thisgo = 20;
|
|
|
|
sprintf (ptr, "M.B %4x =", memaddr + done);
|
|
ptr += 10;
|
|
for (idx = 0; idx < thisgo; idx++)
|
|
{
|
|
sprintf (ptr, "%2x ", myaddr[idx + done]);
|
|
ptr += 3;
|
|
}
|
|
hms_write_cr (buffer);
|
|
expect_prompt ();
|
|
done += thisgo;
|
|
}
|
|
}
|
|
|
|
void
|
|
hms_files_info ()
|
|
{
|
|
char *file = "nothing";
|
|
|
|
if (exec_bfd)
|
|
file = bfd_get_filename (exec_bfd);
|
|
|
|
if (exec_bfd)
|
|
#ifdef __GO32__
|
|
printf_filtered ("\tAttached to DOS asynctsr and running program %s\n", file);
|
|
#else
|
|
printf_filtered ("\tAttached to %s at %d baud and running program %s\n", dev_name, baudrate, file);
|
|
#endif
|
|
printf_filtered ("\ton an H8/300 processor.\n");
|
|
}
|
|
|
|
/* Copy LEN bytes of data from debugger memory at MYADDR
|
|
to inferior's memory at MEMADDR. Returns errno value.
|
|
* sb/sh instructions don't work on unaligned addresses, when TU=1.
|
|
*/
|
|
|
|
/* Read LEN bytes from inferior memory at MEMADDR. Put the result
|
|
at debugger address MYADDR. Returns errno value. */
|
|
int
|
|
hms_read_inferior_memory (memaddr, myaddr, len)
|
|
CORE_ADDR memaddr;
|
|
char *myaddr;
|
|
int len;
|
|
{
|
|
/* Align to nearest low 16 bits */
|
|
int i;
|
|
|
|
CORE_ADDR start = memaddr;
|
|
CORE_ADDR end = memaddr + len - 1;
|
|
|
|
int ok = 1;
|
|
|
|
/*
|
|
AAAA: XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX '................'
|
|
012345678901234567890123456789012345678901234567890123456789012345
|
|
0 1 2 3 4 5 6
|
|
*/
|
|
char buffer[66];
|
|
|
|
if (memaddr & 0xf)
|
|
abort ();
|
|
if (len != 16)
|
|
abort ();
|
|
|
|
sprintf (buffer, "m %4x %4x", start & 0xffff, end & 0xffff);
|
|
|
|
flush ();
|
|
hms_write_cr (buffer);
|
|
/* drop the echo and newline */
|
|
for (i = 0; i < 13; i++)
|
|
readchar ();
|
|
|
|
/* Grab the lines as they come out and fill the area */
|
|
/* Skip over cr */
|
|
while (1)
|
|
{
|
|
int p;
|
|
int i;
|
|
int addr;
|
|
size_t idx;
|
|
|
|
char byte[16];
|
|
|
|
buffer[0] = readchar ();
|
|
while (buffer[0] == '\r'
|
|
|| buffer[0] == '\n')
|
|
buffer[0] = readchar ();
|
|
|
|
if (buffer[0] == 'M')
|
|
break;
|
|
|
|
for (i = 1; i < 50; i++)
|
|
{
|
|
buffer[i] = readchar ();
|
|
}
|
|
/* sometimes we loose characters in the ascii representation of the
|
|
data. I don't know where. So just scan for the end of line */
|
|
i = readchar ();
|
|
while (i != '\n' && i != '\r')
|
|
i = readchar ();
|
|
|
|
/* Now parse the line */
|
|
|
|
addr = gethex (4, buffer, &ok);
|
|
idx = 6;
|
|
for (p = 0; p < 16; p += 2)
|
|
{
|
|
byte[p] = gethex (2, buffer + idx, &ok);
|
|
byte[p + 1] = gethex (2, buffer + idx + 2, &ok);
|
|
idx += 5;
|
|
}
|
|
|
|
for (p = 0; p < 16; p++)
|
|
{
|
|
if (addr + p >= memaddr &&
|
|
addr + p < memaddr + len)
|
|
{
|
|
myaddr[(addr + p) - memaddr] = byte[p];
|
|
|
|
}
|
|
|
|
}
|
|
}
|
|
#ifdef GDB_TARGET_IS_H8500
|
|
expect ("ore>");
|
|
#endif
|
|
#ifdef GDB_TARGET_IS_H8300
|
|
expect ("emory>");
|
|
#endif
|
|
hms_write_cr (".");
|
|
|
|
expect_prompt ();
|
|
return len;
|
|
}
|
|
|
|
|
|
|
|
#define MAX_BREAKS 16
|
|
static int num_brkpts = 0;
|
|
static int
|
|
hms_insert_breakpoint (addr, save)
|
|
CORE_ADDR addr;
|
|
char *save; /* Throw away, let hms save instructions */
|
|
{
|
|
check_open ();
|
|
|
|
if (num_brkpts < MAX_BREAKS)
|
|
{
|
|
char buffer[100];
|
|
|
|
num_brkpts++;
|
|
sprintf (buffer, "b %x", addr & 0xffff);
|
|
hms_write_cr (buffer);
|
|
expect_prompt ();
|
|
return (0);
|
|
}
|
|
else
|
|
{
|
|
fprintf_filtered (gdb_stderr,
|
|
"Too many break points, break point not installed\n");
|
|
return (1);
|
|
}
|
|
|
|
}
|
|
static int
|
|
hms_remove_breakpoint (addr, save)
|
|
CORE_ADDR addr;
|
|
char *save; /* Throw away, let hms save instructions */
|
|
{
|
|
if (num_brkpts > 0)
|
|
{
|
|
char buffer[100];
|
|
|
|
num_brkpts--;
|
|
sprintf (buffer, "b - %x", addr & 0xffff);
|
|
hms_write_cr (buffer);
|
|
expect_prompt ();
|
|
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/* Clear the hmss notion of what the break points are */
|
|
static int
|
|
hms_clear_breakpoints ()
|
|
{
|
|
|
|
if (is_open)
|
|
{
|
|
hms_write_cr ("b -");
|
|
expect_prompt ();
|
|
}
|
|
num_brkpts = 0;
|
|
}
|
|
static void
|
|
hms_mourn ()
|
|
{
|
|
hms_clear_breakpoints ();
|
|
unpush_target (&hms_ops);
|
|
generic_mourn_inferior ();
|
|
}
|
|
|
|
/* Put a command string, in args, out to the hms. The hms is assumed to
|
|
be in raw mode, all writing/reading done through desc.
|
|
Ouput from the hms is placed on the users terminal until the
|
|
prompt from the hms is seen.
|
|
FIXME: Can't handle commands that take input. */
|
|
|
|
void
|
|
hms_com (args, fromtty)
|
|
char *args;
|
|
int fromtty;
|
|
{
|
|
check_open ();
|
|
|
|
if (!args)
|
|
return;
|
|
|
|
/* Clear all input so only command relative output is displayed */
|
|
|
|
hms_write_cr (args);
|
|
/* hms_write ("\030", 1); */
|
|
expect_prompt ();
|
|
}
|
|
|
|
static void
|
|
hms_open (name, from_tty)
|
|
char *name;
|
|
int from_tty;
|
|
{
|
|
unsigned int prl;
|
|
char *p;
|
|
|
|
if (name == 0)
|
|
{
|
|
name = "";
|
|
}
|
|
if (is_open)
|
|
hms_close (0);
|
|
dev_name = strdup (name);
|
|
|
|
if (!(desc = SERIAL_OPEN (dev_name)))
|
|
perror_with_name ((char *) dev_name);
|
|
|
|
SERIAL_RAW (desc);
|
|
is_open = 1;
|
|
push_target (&hms_ops);
|
|
dcache_ptr = dcache_init (hms_read_inferior_memory,
|
|
hms_write_inferior_memory);
|
|
remote_dcache = 1;
|
|
/* Hello? Are you there? */
|
|
SERIAL_WRITE (desc, "\r\n", 2);
|
|
expect_prompt ();
|
|
|
|
/* Clear any break points */
|
|
hms_clear_breakpoints ();
|
|
|
|
printf_filtered ("Connected to remote board running HMS monitor.\n");
|
|
add_commands ();
|
|
/* hms_drain (); */
|
|
}
|
|
|
|
/* Define the target subroutine names */
|
|
|
|
struct target_ops hms_ops ;
|
|
|
|
static void
|
|
init_hms_ops(void)
|
|
{
|
|
hms_ops.to_shortname = "hms";
|
|
hms_ops.to_longname = "Remote HMS monitor";
|
|
hms_ops.to_doc = "Use the H8 evaluation board running the HMS monitor connected\n\
|
|
by a serial line.";
|
|
hms_ops.to_open = hms_open;
|
|
hms_ops.to_close = hms_close;
|
|
hms_ops.to_attach = 0;
|
|
hms_ops.to_post_attach = NULL;
|
|
hms_ops.to_require_attach = NULL;
|
|
hms_ops.to_detach = hms_detach;
|
|
hms_ops.to_require_detach = NULL;
|
|
hms_ops.to_resume = hms_resume;
|
|
hms_ops.to_wait = hms_wait;
|
|
hms_ops.to_post_wait = NULL;
|
|
hms_ops.to_fetch_registers = hms_fetch_register;
|
|
hms_ops.to_store_registers = hms_store_register;
|
|
hms_ops.to_prepare_to_store = hms_prepare_to_store;
|
|
hms_ops.to_xfer_memory = hms_xfer_inferior_memory;
|
|
hms_ops.to_files_info = hms_files_info;
|
|
hms_ops.to_insert_breakpoint = hms_insert_breakpoint;
|
|
hms_ops.to_remove_breakpoint = hms_remove_breakpoint;
|
|
hms_ops.to_terminal_init = 0;
|
|
hms_ops.to_terminal_inferior = 0;
|
|
hms_ops.to_terminal_ours_for_output = 0;
|
|
hms_ops.to_terminal_ours = 0;
|
|
hms_ops.to_terminal_info = 0;
|
|
hms_ops.to_kill = hms_kill;
|
|
hms_ops.to_load = generic_load;
|
|
hms_ops.to_lookup_symbol = 0;
|
|
hms_ops.to_create_inferior = hms_create_inferior;
|
|
hms_ops.to_post_startup_inferior = NULL;
|
|
hms_ops.to_acknowledge_created_inferior = NULL;
|
|
hms_ops.to_clone_and_follow_inferior = NULL;
|
|
hms_ops.to_post_follow_inferior_by_clone = NULL;
|
|
hms_ops.to_insert_fork_catchpoint = NULL;
|
|
hms_ops.to_remove_fork_catchpoint = NULL;
|
|
hms_ops.to_insert_vfork_catchpoint = NULL;
|
|
hms_ops.to_remove_vfork_catchpoint = NULL;
|
|
hms_ops.to_has_forked = NULL;
|
|
hms_ops.to_has_vforked = NULL;
|
|
hms_ops.to_can_follow_vfork_prior_to_exec = NULL;
|
|
hms_ops.to_post_follow_vfork = NULL;
|
|
hms_ops.to_insert_exec_catchpoint = NULL;
|
|
hms_ops.to_remove_exec_catchpoint = NULL;
|
|
hms_ops.to_has_execd = NULL;
|
|
hms_ops.to_reported_exec_events_per_exec_call = NULL;
|
|
hms_ops.to_has_exited = NULL;
|
|
hms_ops.to_mourn_inferior = hms_mourn;
|
|
hms_ops.to_can_run = 0;
|
|
hms_ops.to_notice_signals = 0;
|
|
hms_ops.to_thread_alive = 0;
|
|
hms_ops.to_stop = 0;
|
|
hms_ops.to_pid_to_exec_file = NULL;
|
|
hms_ops.to_core_file_to_sym_file = NULL;
|
|
hms_ops.to_stratum = process_stratum;
|
|
hms_ops.DONT_USE = 0;
|
|
hms_ops.to_has_all_memory = 1;
|
|
hms_ops.to_has_memory = 1;
|
|
hms_ops.to_has_stack = 1;
|
|
hms_ops.to_has_registers = 1;
|
|
hms_ops.to_has_execution = 1;
|
|
hms_ops.to_sections = 0;
|
|
hms_ops.to_sections_end = 0;
|
|
hms_ops.to_magic = OPS_MAGIC;
|
|
};
|
|
|
|
hms_quiet () /* FIXME - this routine can be removed after Dec '94 */
|
|
{
|
|
quiet = !quiet;
|
|
if (quiet)
|
|
printf_filtered ("Snoop disabled\n");
|
|
else
|
|
printf_filtered ("Snoop enabled\n");
|
|
|
|
printf_filtered ("`snoop' is obsolete, please use `set remotedebug'.\n");
|
|
}
|
|
|
|
hms_device (s)
|
|
char *s;
|
|
{
|
|
if (s)
|
|
{
|
|
dev_name = get_word (&s);
|
|
}
|
|
}
|
|
|
|
static
|
|
hms_speed (s)
|
|
char *s;
|
|
{
|
|
check_open ();
|
|
|
|
if (s)
|
|
{
|
|
char buffer[100];
|
|
int newrate = atoi (s);
|
|
int which = 0;
|
|
|
|
if (SERIAL_SETBAUDRATE (desc, newrate))
|
|
error ("Can't use %d baud\n", newrate);
|
|
|
|
printf_filtered ("Checking target is in sync\n");
|
|
|
|
printf_filtered ("Sending commands to set target to %d\n",
|
|
baudrate);
|
|
|
|
sprintf (buffer, "tm %d. N 8 1", baudrate);
|
|
hms_write_cr (buffer);
|
|
}
|
|
}
|
|
|
|
/***********************************************************************/
|
|
|
|
static void
|
|
hms_drain (args, fromtty)
|
|
char *args;
|
|
int fromtty;
|
|
{
|
|
int c;
|
|
while (1)
|
|
{
|
|
c = SERIAL_READCHAR (desc, 1);
|
|
if (c == SERIAL_TIMEOUT)
|
|
break;
|
|
if (c == SERIAL_ERROR)
|
|
break;
|
|
if (c > ' ' && c < 127)
|
|
printf ("%c", c & 0xff);
|
|
else
|
|
printf ("<%x>", c & 0xff);
|
|
}
|
|
}
|
|
|
|
static void
|
|
add_commands ()
|
|
{
|
|
|
|
add_com ("hms_drain", class_obscure, hms_drain,
|
|
"Drain pending hms text buffers.");
|
|
}
|
|
|
|
static void
|
|
remove_commands ()
|
|
{
|
|
extern struct cmd_list_element *cmdlist;
|
|
delete_cmd ("hms-drain", &cmdlist);
|
|
}
|
|
|
|
|
|
void
|
|
_initialize_remote_hms ()
|
|
{
|
|
init_hms_ops() ;
|
|
add_target (&hms_ops);
|
|
|
|
add_com ("hms <command>", class_obscure, hms_com,
|
|
"Send a command to the HMS monitor.");
|
|
|
|
/* FIXME - hms_quiet and `snoop' can be removed after Dec '94 */
|
|
add_com ("snoop", class_obscure, hms_quiet,
|
|
"Show what commands are going to the monitor (OBSOLETE - see 'set remotedebug')");
|
|
|
|
add_com ("device", class_obscure, hms_device,
|
|
"Set the terminal line for HMS communications");
|
|
|
|
add_com ("speed", class_obscure, hms_speed,
|
|
"Set the terminal line speed for HMS communications");
|
|
|
|
dev_name = NULL;
|
|
}
|
|
#endif
|
|
|