/* Remote debugging interface for Hitachi HMS Monitor Version 1.0
- Copyright 1992 Free Software Foundation, Inc.
+ Copyright 1995 Free Software Foundation, Inc.
Contributed by Cygnus Support. Written by Steve Chamberlain
(sac@cygnus.com).
-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 "inferior.h"
-#include "wait.h"
-#include "value.h"
-#include <string.h>
-#include <ctype.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <setjmp.h>
-#include <errno.h>
-#include "terminal.h"
-#include "target.h"
#include "gdbcore.h"
+#include "target.h"
+#include "monitor.h"
#include "serial.h"
-/* External data declarations */
-extern int stop_soon_quietly; /* for wait_for_inferior */
-
-/* Forward data declarations */
-extern struct target_ops hms_ops; /* Forward declaration */
-
-/* Forward function declarations */
-static void hms_fetch_registers ();
-static int hms_store_registers ();
-static void hms_close ();
-static int hms_clear_breakpoints ();
-
-extern struct target_ops hms_ops;
-
-static int quiet = 1;
-
-
-serial_t desc;
+static void hms_open PARAMS ((char *args, int from_tty));
-/***********************************************************************/
-/* Caching stuff stolen from remote-nindy.c */
-
-/* The data cache records all the data read from the remote machine
- since the last time it stopped.
+static void
+hms_supply_register (regname, regnamelen, val, vallen)
+ char *regname;
+ int regnamelen;
+ char *val;
+ int vallen;
+{
+ int regno;
- Each cache block holds LINE_SIZE bytes of data
- starting at a multiple-of-LINE_SIZE address. */
+ if (regnamelen != 2)
+ return;
+ if (regname[0] != 'P')
+ return;
+ /* We scan off all the registers in one go */
-#define LINE_SIZE_POWER 4
-#define LINE_SIZE (1<<LINE_SIZE_POWER) /* eg 1<<3 == 8 */
-#define LINE_SIZE_MASK ((LINE_SIZE-1)) /* eg 7*2+1= 111*/
-#define DCACHE_SIZE 64 /* Number of cache blocks */
-#define XFORM(x) ((x&LINE_SIZE_MASK)>>2)
-struct dcache_block
- {
- struct dcache_block *next, *last;
- unsigned int addr; /* Address for which data is recorded. */
- int data[LINE_SIZE / sizeof (int)];
- };
+ val = monitor_supply_register (PC_REGNUM, val);
+ /* Skip the ccr string */
+ while (*val != '=' && *val)
+ val++;
-struct dcache_block dcache_free, dcache_valid;
+ val = monitor_supply_register (CCR_REGNUM, val + 1);
-/* Free all the data cache blocks, thus discarding all cached data. */
-static
-void
-dcache_flush ()
-{
- register struct dcache_block *db;
+ /* Skip up to rest of regs */
+ while (*val != '=' && *val)
+ val++;
- while ((db = dcache_valid.next) != &dcache_valid)
+ for (regno = 0; regno < 7; regno++)
{
- remque (db);
- insque (db, &dcache_free);
+ val = monitor_supply_register (regno, val + 1);
}
}
/*
- * If addr is present in the dcache, return the address of the block
- * containing it.
+ * This array of registers needs to match the indexes used by GDB. The
+ * whole reason this exists is because the various ROM monitors use
+ * different names than GDB does, and don't support all the
+ * registers either. So, typing "info reg sp" becomes a "r30".
*/
-static
-struct dcache_block *
-dcache_hit (addr)
- unsigned int addr;
+
+static char *hms_regnames[NUM_REGS] =
{
- register struct dcache_block *db;
+ "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", "CCR", "PC"
+};
- if (addr & 3)
- abort ();
+/*
+ * 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.
+ */
- /* Search all cache blocks for one that is at this address. */
- db = dcache_valid.next;
- while (db != &dcache_valid)
- {
- if ((addr & ~LINE_SIZE_MASK) == db->addr)
- return db;
- db = db->next;
- }
- return NULL;
-}
+static struct target_ops hms_ops;
-/* Return the int data at address ADDR in dcache block DC. */
-static
-int
-dcache_value (db, addr)
- struct dcache_block *db;
- unsigned int addr;
+static char *hms_inits[] =
+{"\003", /* Resets the prompt, and clears repeated cmds */
+ NULL};
+
+static struct monitor_ops hms_cmds =
{
- if (addr & 3)
- abort ();
- return (db->data[XFORM (addr)]);
-}
+ MO_CLR_BREAK_USES_ADDR | MO_FILL_USES_ADDR | MO_GETMEM_NEEDS_RANGE,
+ hms_inits, /* Init strings */
+ "g\r", /* continue command */
+ "s\r", /* single step */
+ "\003", /* ^C interrupts the program */
+ "b %x\r", /* set a breakpoint */
+ "b - %x\r", /* clear a breakpoint */
+ "b -\r", /* clear all breakpoints */
+ "f %x %x %x\r", /* fill (start end val) */
+ {
+ "m.b %x=%x\r", /* setmem.cmdb (addr, value) */
+ "m.w %x=%x\r", /* setmem.cmdw (addr, value) */
+ NULL, /* setmem.cmdl (addr, value) */
+ NULL, /* setmem.cmdll (addr, value) */
+ NULL, /* setreg.resp_delim */
+ NULL, /* setreg.term */
+ NULL, /* setreg.term_cmd */
+ },
+ {
+ "m.b %x %x\r", /* getmem.cmdb (addr, addr) */
+ "m.w %x %x\r", /* getmem.cmdw (addr, addr) */
+ NULL, /* getmem.cmdl (addr, addr) */
+ NULL, /* getmem.cmdll (addr, addr) */
+ ": ", /* getmem.resp_delim */
+ ">", /* getmem.term */
+ "\003", /* getmem.term_cmd */
+ },
+ {
+ "r %s=%x\r", /* setreg.cmd (name, value) */
+ NULL, /* setreg.resp_delim */
+ NULL, /* setreg.term */
+ NULL /* setreg.term_cmd */
+ },
+ {
+ "r %s\r", /* getreg.cmd (name) */
+ " (", /* getreg.resp_delim */
+ ":", /* getreg.term */
+ "\003", /* getreg.term_cmd */
+ },
+ "r\r", /* dump_registers */
+ "\\(\\w+\\)=\\([0-9a-fA-F]+\\)", /* register_pattern */
+ hms_supply_register, /* supply_register */
+ NULL, /* load_routine (defaults to SRECs) */
+ "tl\r", /* download command */
+ NULL, /* load response */
+ ">", /* monitor command prompt */
+ "\r", /* end-of-command delimitor */
+ NULL, /* optional command terminator */
+ &hms_ops, /* target operations */
+ SERIAL_1_STOPBITS, /* number of stop bits */
+ hms_regnames, /* registers names */
+ MONITOR_OPS_MAGIC /* magic */
+};
-/* Get a free cache block, put or keep it on the valid list,
- and return its address. The caller should store into the block
- the address and data that it describes, then remque it from the
- free list and insert it into the valid list. This procedure
- prevents errors from creeping in if a ninMemGet is interrupted
- (which used to put garbage blocks in the valid list...). */
-static
-struct dcache_block *
-dcache_alloc ()
+static void
+hms_open (args, from_tty)
+ char *args;
+ int from_tty;
{
- register struct dcache_block *db;
+ monitor_open (args, &hms_cmds, from_tty);
+}
- if ((db = dcache_free.next) == &dcache_free)
- {
- /* If we can't get one from the free list, take last valid and put
- it on the free list. */
- db = dcache_valid.last;
- remque (db);
- insque (db, &dcache_free);
- }
+int write_dos_tick_delay;
- remque (db);
- insque (db, &dcache_valid);
- return (db);
+void
+_initialize_remote_hms ()
+{
+ init_monitor_ops (&hms_ops);
+
+ hms_ops.to_shortname = "hms";
+ hms_ops.to_longname = "Hitachi Microsystems H8/300 debug monitor";
+ hms_ops.to_doc = "Debug via the HMS monitor.\n\
+Specify the serial device it is connected to (e.g. /dev/ttya).";
+ hms_ops.to_open = hms_open;
+ /* By trial and error I've found that this delay doesn't break things */
+ write_dos_tick_delay = 1;
+ add_target (&hms_ops);
}
-/* Return the contents of the word at address ADDR in the remote machine,
- using the data cache. */
-static
-int
-dcache_fetch (addr)
- CORE_ADDR addr;
-{
- register struct dcache_block *db;
- db = dcache_hit (addr);
- if (db == 0)
- {
- db = dcache_alloc ();
- immediate_quit++;
- hms_read_inferior_memory (addr & ~LINE_SIZE_MASK, (unsigned char *) db->data, LINE_SIZE);
- immediate_quit--;
- db->addr = addr & ~LINE_SIZE_MASK;
- remque (db); /* Off the free list */
- insque (db, &dcache_valid); /* On the valid list */
- }
- return (dcache_value (db, addr));
-}
+#if 0
+/* This is kept here because we used to support the H8/500 in this module,
+ and I haven't done the H8/500 yet */
+#include "defs.h"
+#include "inferior.h"
+#include "wait.h"
+#include "value.h"
+#include "gdb_string.h"
+#include <ctype.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <setjmp.h>
+#include <errno.h>
+#include "terminal.h"
+#include "target.h"
+#include "gdbcore.h"
+#include "serial.h"
+#include "remote-utils.h"
+/* External data declarations */
+extern int stop_soon_quietly; /* for wait_for_inferior */
-/* Write the word at ADDR both in the data cache and in the remote machine. */
-static void
-dcache_poke (addr, data)
- CORE_ADDR addr;
- int data;
-{
- register struct dcache_block *db;
+/* Forward data declarations */
+extern struct target_ops hms_ops; /* Forward declaration */
- /* First make sure the word is IN the cache. DB is its cache block. */
- db = dcache_hit (addr);
- if (db == 0)
- {
- db = dcache_alloc ();
- immediate_quit++;
- hms_write_inferior_memory (addr & ~LINE_SIZE_MASK, (unsigned char *) db->data, LINE_SIZE);
- immediate_quit--;
- db->addr = addr & ~LINE_SIZE_MASK;
- remque (db); /* Off the free list */
- insque (db, &dcache_valid); /* On the valid list */
- }
+/* Forward function declarations */
+static void hms_fetch_registers ();
+static int hms_store_registers ();
+static void hms_close ();
+static int hms_clear_breakpoints ();
- /* Modify the word in the cache. */
- db->data[XFORM (addr)] = data;
+extern struct target_ops hms_ops;
+static void hms_drain ();
+static void add_commands ();
+static void remove_commands ();
- /* Send the changed word. */
- immediate_quit++;
- hms_write_inferior_memory (addr, (unsigned char *) &data, 4);
- immediate_quit--;
-}
+static int quiet = 1; /* FIXME - can be removed after Dec '94 */
-/* The cache itself. */
-struct dcache_block the_cache[DCACHE_SIZE];
-/* Initialize the data cache. */
-static void
-dcache_init ()
-{
- register i;
- register struct dcache_block *db;
-
- db = the_cache;
- dcache_free.next = dcache_free.last = &dcache_free;
- dcache_valid.next = dcache_valid.last = &dcache_valid;
- for (i = 0; i < DCACHE_SIZE; i++, db++)
- insque (db, &dcache_free);
-}
/***********************************************************************
* I/O stuff stolen from remote-eb.c
hms_open knows that we don't have a file open when the program
starts. */
-int is_open = 0;
+static int before = 0xdead;
+static int is_open = 0;
+static int after = 0xdead;
int
check_open ()
{
+ if (before != 0xdead
+ || after != 0xdead)
+ printf ("OUTCH! \n");
if (!is_open)
{
error ("remote device not open");
buf = SERIAL_READCHAR (desc, timeout);
if (buf == SERIAL_TIMEOUT)
- error ("Timeout reading from remote system.");
+ {
+ hms_write (".\r\n", 3);
+ error ("Timeout reading from remote system.");
+ }
+ if (buf == SERIAL_ERROR)
+ {
+ error ("Serial port error!");
+ }
- if (!quiet)
+ if (!quiet || remote_debug)
printf_unfiltered ("%c", buf);
return buf & 0x7f;
}
+static void
+flush ()
+{
+ while (1)
+ {
+ int b = SERIAL_READCHAR (desc, 0);
+ if (b == SERIAL_TIMEOUT)
+ return;
+ }
+}
+
static int
readchar_nofail ()
{
buf = SERIAL_READCHAR (desc, timeout);
if (buf == SERIAL_TIMEOUT)
buf = 0;
- if (!quiet)
+ if (!quiet || remote_debug)
printf_unfiltered ("%c", buf);
return buf & 0x7f;
char *string;
{
char *p = string;
-
+ char c;
immediate_quit = 1;
while (1)
{
- if (readchar () == *p)
+ c = readchar ();
+ if (c == *p)
{
p++;
if (*p == '\0')
}
}
else
- p = string;
+ {
+ p = string;
+ if (c == *p)
+ p++;
+ }
}
}
}
-/*
- * Download a file specified in 'args', to the hms.
- */
-static void
-hms_load (args, fromtty)
- char *args;
- int fromtty;
-{
- bfd *abfd;
- asection *s;
- int n;
- char buffer[1024];
-
- check_open ();
-
- dcache_flush ();
- inferior_pid = 0;
- abfd = bfd_openr (args, gnutarget);
- if (!abfd)
- {
- printf_filtered ("Unable to open file %s\n", args);
- return;
- }
-
- if (bfd_check_format (abfd, bfd_object) == 0)
- {
- printf_filtered ("File is not an object file\n");
- return;
- }
-
- s = abfd->sections;
- while (s != (asection *) NULL)
- {
- if (s->flags & SEC_LOAD)
- {
- int i;
-
-#define DELTA 1024
- char *buffer = xmalloc (DELTA);
-
- printf_filtered ("%s\t: 0x%4x .. 0x%4x ", s->name, s->vma, s->vma + s->_raw_size);
- for (i = 0; i < s->_raw_size; i += DELTA)
- {
- int delta = DELTA;
-
- if (delta > s->_raw_size - i)
- delta = s->_raw_size - i;
-
- bfd_get_section_contents (abfd, s, buffer, i, delta);
- hms_write_inferior_memory (s->vma + i, buffer, delta);
- printf_filtered ("*");
- gdb_flush (gdb_stdout);
- }
- printf_filtered ("\n");
- free (buffer);
- }
- s = s->next;
- }
- sprintf (buffer, "r PC=%x", abfd->start_address);
- hms_write_cr (buffer);
- expect_prompt ();
-}
-
/* This is called not only when we first attach, but also when the
user types "run" after having attached. */
void
/* Put this port into NORMAL mode, send the 'normal' character */
hms_write ("\001", 1); /* Control A */
- hms_write ("\r", 1); /* Cr */
+ hms_write ("\r\n", 2); /* Cr */
while (1)
{
}
-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;
-
- dcache_init ();
-
- /* Hello? Are you there? */
- SERIAL_WRITE (desc, "\r", 1);
- expect_prompt ();
-
- /* Clear any break points */
- hms_clear_breakpoints ();
-
- printf_filtered ("Connected to remote H8/300 HMS system.\n");
-}
/* Close out all files and local state before this target loses control. */
int quitting;
{
/* Clear any break points */
+ remove_commands ();
hms_clear_breakpoints ();
sleep (1); /* Let any output make it all the way back */
if (is_open)
{
- SERIAL_WRITE (desc, "R\r", 2);
+ SERIAL_WRITE (desc, "R\r\n", 3);
SERIAL_CLOSE (desc);
}
is_open = 0;
}
-/* Terminate the open connection to the remote debugger.
- Use this when you want to detach and do something else
- with your gdb. */
-void
+/* Terminate the open connection to the remote debugger. Use this
+ when you want to detach and do something else with your gdb. */ void
hms_detach (args, from_tty)
char *args;
int from_tty;
hms_clear_breakpoints ();
}
- pop_target (); /* calls hms_close to do the real work */
+ pop_target (); /* calls hms_close to do the real work
+ */
if (from_tty)
- printf_filtered ("Ending remote %s debugging\n", target_shortname);
+ 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;
+ enum target_signal
+ sig;
{
- dcache_flush ();
-
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. */
+ 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
}
}
-/* Wait until the remote machine stops, then return,
- storing status in STATUS just as `wait' would. */
+/* 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. */
+ /* 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. */
+ /* 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. */
+ /* Large enough for either sizeof (bpt) or sizeof (exitmsg) chars.
+ */
char swallowed[50];
/* Current position in swallowed. */
int ch;
int ch_handled;
int old_timeout = timeout;
- int old_immediate_quit = immediate_quit;
+ int
+ old_immediate_quit = immediate_quit;
int swallowed_cr = 0;
status->kind = TARGET_WAITKIND_EXITED;
if (need_artificial_trap != 0)
{
- status->kind = TARGET_WAITKIND_STOPPED;
+ status->kind =
+ TARGET_WAITKIND_STOPPED;
status->value.sig = TARGET_SIGNAL_TRAP;
need_artificial_trap--;
return 0;
}
- timeout = -1; /* Don't time out -- user program is running. */
+ timeout = 5; /* Don't time out for a while - user program is running.
+ */
immediate_quit = 1; /* Helps ability to QUIT */
while (1)
{
{
bp = bpt;
}
- if (ch == *ep || *ep == '?')
+ if
+ (ch == *ep || *ep == '?')
{
ep++;
if (*ep == '\0')
if (!ch_handled)
*swallowed_p++ = ch;
- ch_handled = 1;
+ ch_handled =
+ 1;
}
else
{
/* Print out any characters which have been swallowed. */
for (p = swallowed; p < swallowed_p; ++p)
- putc_unfiltered (*p);
+ putchar_unfiltered (*p);
swallowed_p = swallowed;
if ((ch != '\r' && ch != '\n') || swallowed_cr > 10)
{
- putc_unfiltered (ch);
+ putchar_unfiltered (ch);
swallowed_cr = 10;
}
swallowed_cr++;
else
{
status->kind = TARGET_WAITKIND_EXITED;
- status->value.integer = 0;
+ status->value.integer =
+ TARGET_SIGNAL_STOP;
}
timeout = old_timeout;
immediate_quit = old_immediate_quit;
- return 0;
+ return
+ 0;
}
-/* Return the name of register number REGNO
- in the form input and output by hms.
+/* 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;
+ static char *rn[] =
+ REGISTER_NAMES;
return rn[regno];
}
/* Read the remote registers. */
+
static int
gethex (length, start, ok)
unsigned int length;
{
result += *start - 'a' + 10;
}
- else if (*start >= 'A' && *start <= 'F')
+ else if (*start >= 'A' &&
+ *start <= 'F')
{
result += *start - 'A' + 10;
}
- else if (*start >= '0' && *start <= '9')
+ else if
+ (*start >= '0' && *start <= '9')
{
result += *start - '0';
}
}
static int
timed_read (buf, n, timeout)
- char *buf;
+ char
+ *buf;
{
int i;
SERIAL_WRITE (desc, a, l);
- if (!quiet)
- for (i = 0; i < l; i++)
- {
- printf_unfiltered ("%c", a[i]);
- }
+ 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", 1);
+ 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;
int s;
int gottok;
- unsigned LONGEST reg[NUM_REGS];
- int foo[8];
+ ULONGEST reg[NUM_REGS];
check_open ();
do
{
-
hms_write_cr ("r");
- s = timed_read (linebuf, REGREPLY_SIZE, 1);
+
+ 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;
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
- */
+ 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);
supply_register (i, swapped);
}
}
-
+#endif
/* Store register REGNO, or all if REGNO == -1.
Return errno value. */
static void
{
char *name = get_reg_name (regno);
char buffer[100];
-
- sprintf (buffer, "r %s=%x", name, read_register (regno));
- hms_write_cr (buffer);
- expect_prompt ();
+ /* 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
}
-/* Read a word from remote address ADDR and return it.
- * This goes through the data cache.
- */
-int
-hms_fetch_word (addr)
- CORE_ADDR addr;
-{
- return dcache_fetch (addr);
-}
-
-/* Write a word WORD into remote address ADDR.
- This goes through the data cache. */
-
-void
-hms_store_word (addr, word)
- CORE_ADDR addr;
- int word;
-{
- dcache_poke (addr, word);
-}
int
hms_xfer_inferior_memory (memaddr, myaddr, len, write, target)
int write;
struct target_ops *target; /* ignored */
{
- register int i;
-
- /* Round starting address down to longword boundary. */
- register CORE_ADDR addr;
-
- /* Round ending address up; get number of longwords that makes. */
- register int count;
-
- /* Allocate buffer of that many longwords. */
- register int *buffer;
-
- memaddr &= 0xffff;
- addr = memaddr & -sizeof (int);
- count = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int);
-
- buffer = (int *) alloca (count * sizeof (int));
-
- if (write)
- {
- /* Fill start and end extra bytes of buffer with existing memory data. */
-
- if (addr != memaddr || len < (int) sizeof (int))
- {
- /* Need part of initial word -- fetch it. */
- buffer[0] = hms_fetch_word (addr);
- }
-
- if (count > 1) /* FIXME, avoid if even boundary */
- {
- buffer[count - 1]
- = hms_fetch_word (addr + (count - 1) * sizeof (int));
- }
-
- /* Copy data to be written over corresponding part of buffer */
-
- memcpy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len);
-
- /* Write the entire buffer. */
-
- for (i = 0; i < count; i++, addr += sizeof (int))
- {
- errno = 0;
- hms_store_word (addr, buffer[i]);
- if (errno)
- {
-
- return 0;
- }
-
- }
- }
- else
- {
- /* Read all the longwords */
- for (i = 0; i < count; i++, addr += sizeof (int))
- {
- errno = 0;
- buffer[i] = hms_fetch_word (addr);
- if (errno)
- {
- return 0;
- }
- QUIT;
- }
-
- /* Copy appropriate bytes out of the buffer. */
- memcpy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len);
- }
return len;
}
bfd_vma addr;
int done;
int todo;
-
+ char buffer[100];
done = 0;
+ hms_write_cr (".");
+ expect_prompt ();
while (done < len)
{
- char buffer[20];
+ char *ptr = buffer;
int thisgo;
int idx;
if (thisgo > 20)
thisgo = 20;
- sprintf (buffer, "M.B %4x =", memaddr + done);
- hms_write (buffer, 10);
+ sprintf (ptr, "M.B %4x =", memaddr + done);
+ ptr += 10;
for (idx = 0; idx < thisgo; idx++)
{
- char buf[20];
-
- sprintf (buf, "%2x ", myaddr[idx + done]);
- hms_write (buf, 3);
+ sprintf (ptr, "%2x ", myaddr[idx + done]);
+ ptr += 3;
}
- hms_write_cr ("");
+ hms_write_cr (buffer);
expect_prompt ();
done += thisgo;
}
-
}
void
/* 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.
+ * sb/sh instructions don't work on unaligned addresses, when TU=1.
*/
/* Read LEN bytes from inferior memory at MEMADDR. Put the result
/* Align to nearest low 16 bits */
int i;
-#if 0
- CORE_ADDR start = memaddr & ~0xf;
- CORE_ADDR end = ((memaddr + len + 16) & ~0xf) - 1;
-
-#endif
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
- */
+ AAAA: XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX '................'
+ 012345678901234567890123456789012345678901234567890123456789012345
+ 0 1 2 3 4 5 6
+ */
char buffer[66];
if (memaddr & 0xf)
abort ();
sprintf (buffer, "m %4x %4x", start & 0xffff, end & 0xffff);
+
+ flush ();
hms_write_cr (buffer);
- /* drop the echo and newline*/
+ /* drop the echo and newline */
for (i = 0; i < 13; i++)
readchar ();
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 < 66; i++)
- buffer[i] = readchar ();
+
+ 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 */
byte[p] = gethex (2, buffer + idx, &ok);
byte[p + 1] = gethex (2, buffer + idx + 2, &ok);
idx += 5;
-
}
for (p = 0; p < 16; p++)
}
}
+#ifdef GDB_TARGET_IS_H8500
+ expect ("ore>");
+#endif
+#ifdef GDB_TARGET_IS_H8300
expect ("emory>");
- hms_write_cr (" ");
+#endif
+ hms_write_cr (".");
+
expect_prompt ();
return len;
}
-/* This routine is run as a hook, just before the main command loop is
- entered. If gdb is configured for the H8, but has not had its
- target specified yet, this will loop prompting the user to do so.
-*/
-hms_before_main_loop ()
-{
- char ttyname[100];
- char *p, *p2;
- extern GDB_FILE *instream;
-
- push_target (&hms_ops);
-}
#define MAX_BREAKS 16
static int num_brkpts = 0;
/* Clear all input so only command relative output is displayed */
hms_write_cr (args);
- hms_write ("\030", 1);
+/* 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 */
hms_prepare_to_store,
hms_xfer_inferior_memory,
hms_files_info,
- hms_insert_breakpoint, hms_remove_breakpoint, /* Breakpoints */
+ hms_insert_breakpoint, hms_remove_breakpoint, /* Breakpoints */
0, 0, 0, 0, 0, /* Terminal handling */
hms_kill, /* FIXME, kill */
- hms_load,
+ generic_load,
0, /* lookup_symbol */
hms_create_inferior, /* create_inferior */
hms_mourn, /* mourn_inferior FIXME */
0, /* can_run */
0, /* notice_signals */
+ 0, /* to_thread_alive */
+ 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 */
};
-hms_quiet ()
+hms_quiet () /* FIXME - this routine can be removed after Dec '94 */
{
quiet = !quiet;
if (quiet)
else
printf_filtered ("Snoop enabled\n");
+ printf_filtered ("`snoop' is obsolete, please use `set remotedebug'.\n");
}
hms_device (s)
/***********************************************************************/
+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 ()
{
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");
+ "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");
dev_name = NULL;
}
+#endif
+
projects / deliverable / binutils-gdb.git / blobdiff