+/* Remote debugging interface for Renesas E7000 ICE, for GDB
+
+ Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+ 2002, 2003 Free Software Foundation, Inc.
+
+ Contributed by Cygnus Support.
+
+ Written by Steve Chamberlain for Cygnus Support.
+
+ 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 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., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+/* The E7000 is an in-circuit emulator for the Renesas H8/300-H and
+ Renesas-SH processor. It has serial port and a lan port.
+
+ The monitor command set makes it difficult to load large ammounts of
+ data over the lan without using ftp - so try not to issue load
+ commands when communicating over ethernet; use the ftpload command.
+
+ The monitor pauses for a second when dumping srecords to the serial
+ line too, so we use a slower per byte mechanism but without the
+ startup overhead. Even so, it's pretty slow... */
+
+#include "defs.h"
+#include "gdbcore.h"
+#include "gdbarch.h"
+#include "inferior.h"
+#include "target.h"
+#include "value.h"
+#include "command.h"
+#include "gdb_string.h"
+#include "gdbcmd.h"
+#include <sys/types.h>
+#include "serial.h"
+#include "remote-utils.h"
+#include "symfile.h"
+#include "regcache.h"
+#include <time.h>
+#include <ctype.h>
+
+
+#if 1
+#define HARD_BREAKPOINTS /* Now handled by set option. */
+#define BC_BREAKPOINTS use_hard_breakpoints
+#endif
+
+#define CTRLC 0x03
+#define ENQ 0x05
+#define ACK 0x06
+#define CTRLZ 0x1a
+
+/* This file is used by 2 different targets, sh-elf and h8300. The
+ h8300 is not multiarched and doesn't use the registers defined in
+ tm-sh.h. To avoid using a macro GDB_TARGET_IS_SH, we do runtime check
+ of the target, which requires that these namse below are always
+ defined also in the h8300 case. */
+
+#if !defined (PR_REGNUM)
+#define PR_REGNUM -1
+#endif
+#if !defined (GBR_REGNUM)
+#define GBR_REGNUM -1
+#endif
+#if !defined (VBR_REGNUM)
+#define VBR_REGNUM -1
+#endif
+#if !defined (MACH_REGNUM)
+#define MACH_REGNUM -1
+#endif
+#if !defined (MACL_REGNUM)
+#define MACL_REGNUM -1
+#endif
+#if !defined (SR_REGNUM)
+#define SR_REGNUM -1
+#endif
+
+extern void report_transfer_performance (unsigned long, time_t, time_t);
+
+extern char *sh_processor_type;
+
+/* Local function declarations. */
+
+static void e7000_close (int);
+
+static void e7000_fetch_register (int);
+
+static void e7000_store_register (int);
+
+static void e7000_command (char *, int);
+
+static void e7000_login_command (char *, int);
+
+static void e7000_ftp_command (char *, int);
+
+static void e7000_drain_command (char *, int);
+
+static void expect (char *);
+
+static void expect_full_prompt (void);
+
+static void expect_prompt (void);
+
+static int e7000_parse_device (char *args, char *dev_name, int baudrate);
+/* Variables. */
+
+static struct serial *e7000_desc;
+
+/* Allow user to chose between using hardware breakpoints or memory. */
+static int use_hard_breakpoints = 0; /* use sw breakpoints by default */
+
+/* Nonzero if using the tcp serial driver. */
+
+static int using_tcp; /* direct tcp connection to target */
+static int using_tcp_remote; /* indirect connection to target
+ via tcp to controller */
+
+/* Nonzero if using the pc isa card. */
+
+static int using_pc;
+
+extern struct target_ops e7000_ops; /* Forward declaration */
+
+char *ENQSTRING = "\005";
+
+/* Nonzero if some routine (as opposed to the user) wants echoing.
+ FIXME: Do this reentrantly with an extra parameter. */
+
+static int echo;
+
+static int ctrl_c;
+
+static int timeout = 20;
+
+/* Send data to e7000debug. */
+
+static void
+puts_e7000debug (char *buf)
+{
+ if (!e7000_desc)
+ error ("Use \"target e7000 ...\" first.");
+
+ if (remote_debug)
+ printf_unfiltered ("Sending %s\n", buf);
+
+ if (serial_write (e7000_desc, buf, strlen (buf)))
+ fprintf_unfiltered (gdb_stderr, "serial_write failed: %s\n", safe_strerror (errno));
+
+ /* And expect to see it echoed, unless using the pc interface */
+#if 0
+ if (!using_pc)
+#endif
+ expect (buf);
+}
+
+static void
+putchar_e7000 (int x)
+{
+ char b[1];
+
+ b[0] = x;
+ serial_write (e7000_desc, b, 1);
+}
+
+static void
+write_e7000 (char *s)
+{
+ serial_write (e7000_desc, s, strlen (s));
+}
+
+static int
+normal (int x)
+{
+ if (x == '\n')
+ return '\r';
+ return x;
+}
+
+/* Read a character from the remote system, doing all the fancy timeout
+ stuff. Handles serial errors and EOF. If TIMEOUT == 0, and no chars,
+ returns -1, else returns next char. Discards chars > 127. */
+
+static int
+readchar (int timeout)
+{
+ int c;
+
+ do
+ {
+ c = serial_readchar (e7000_desc, timeout);
+ }
+ while (c > 127);
+
+ if (c == SERIAL_TIMEOUT)
+ {
+ if (timeout == 0)
+ return -1;
+ echo = 0;
+ error ("Timeout reading from remote system.");
+ }
+ else if (c < 0)
+ error ("Serial communication error");
+
+ if (remote_debug)
+ {
+ putchar_unfiltered (c);
+ gdb_flush (gdb_stdout);
+ }
+
+ return normal (c);
+}
+
+#if 0
+char *
+tl (int x)
+{
+ static char b[8][10];
+ static int p;
+
+ p++;
+ p &= 7;
+ if (x >= ' ')
+ {
+ b[p][0] = x;
+ b[p][1] = 0;
+ }
+ else
+ {
+ sprintf (b[p], "<%d>", x);
+ }
+
+ return b[p];
+}
+#endif
+
+/* Scan input from the remote system, until STRING is found. If
+ DISCARD is non-zero, then discard non-matching input, else print it
+ out. Let the user break out immediately. */
+
+static void
+expect (char *string)
+{
+ char *p = string;
+ int c;
+ int nl = 0;
+
+ while (1)
+ {
+ c = readchar (timeout);
+
+ if (echo)
+ {
+ if (c == '\r' || c == '\n')
+ {
+ if (!nl)
+ putchar_unfiltered ('\n');
+ nl = 1;
+ }
+ else
+ {
+ nl = 0;
+ putchar_unfiltered (c);
+ }
+ gdb_flush (gdb_stdout);
+ }
+ if (normal (c) == normal (*p++))
+ {
+ if (*p == '\0')
+ return;
+ }
+ else
+ {
+ p = string;
+
+ if (normal (c) == normal (string[0]))
+ p++;
+ }
+ }
+}
+
+/* Keep discarding input until we see the e7000 prompt.
+
+ The convention for dealing with the prompt is that you
+ o give your command
+ o *then* wait for the prompt.
+
+ Thus the last thing that a procedure does with the serial line will
+ be an expect_prompt(). Exception: e7000_resume does not wait for
+ the prompt, because the terminal is being handed over to the
+ inferior. However, the next thing which happens after that is a
+ e7000_wait which does wait for the prompt. Note that this includes
+ abnormal exit, e.g. error(). This is necessary to prevent getting
+ into states from which we can't recover. */
+
+static void
+expect_prompt (void)
+{
+ expect (":");
+}
+
+static void
+expect_full_prompt (void)
+{
+ expect ("\r:");
+}
+
+static int
+convert_hex_digit (int ch)
+{
+ if (ch >= '0' && ch <= '9')
+ return ch - '0';
+ else if (ch >= 'A' && ch <= 'F')
+ return ch - 'A' + 10;
+ else if (ch >= 'a' && ch <= 'f')
+ return ch - 'a' + 10;
+ return -1;
+}
+
+static int
+get_hex (int *start)
+{
+ int value = convert_hex_digit (*start);
+ int try;
+
+ *start = readchar (timeout);
+ while ((try = convert_hex_digit (*start)) >= 0)
+ {
+ value <<= 4;
+ value += try;
+ *start = readchar (timeout);
+ }
+ return value;
+}
+
+#if 0
+/* Get N 32-bit words from remote, each preceded by a space, and put
+ them in registers starting at REGNO. */
+
+static void
+get_hex_regs (int n, int regno)
+{
+ long val;
+ int i;
+
+ for (i = 0; i < n; i++)
+ {
+ int j;
+
+ val = 0;
+ for (j = 0; j < 8; j++)
+ val = (val << 4) + get_hex_digit (j == 0);
+ supply_register (regno++, (char *) &val);
+ }
+}
+#endif
+
+/* This is called not only when we first attach, but also when the
+ user types "run" after having attached. */
+
+static void
+e7000_create_inferior (char *execfile, char *args, char **env)
+{
+ int entry_pt;
+
+ if (args && *args)
+ error ("Can't pass arguments to remote E7000DEBUG process");
+
+ if (execfile == 0 || exec_bfd == 0)
+ error ("No executable file specified");
+
+ entry_pt = (int) bfd_get_start_address (exec_bfd);
+
+#ifdef CREATE_INFERIOR_HOOK
+ CREATE_INFERIOR_HOOK (0); /* No process-ID */
+#endif
+
+ /* The "process" (board) is already stopped awaiting our commands, and
+ the program is already downloaded. We just set its PC and go. */
+
+ clear_proceed_status ();
+
+ /* Tell wait_for_inferior that we've started a new process. */
+ init_wait_for_inferior ();
+
+ /* Set up the "saved terminal modes" of the inferior
+ based on what modes we are starting it with. */
+ target_terminal_init ();
+
+ /* Install inferior's terminal modes. */
+ target_terminal_inferior ();
+
+ /* insert_step_breakpoint (); FIXME, do we need this? */
+ proceed ((CORE_ADDR) entry_pt, -1, 0); /* Let 'er rip... */
+}
+
+/* Open a connection to a remote debugger. NAME is the filename used
+ for communication. */
+
+static int baudrate = 9600;
+static char dev_name[100];
+
+static char *machine = "";
+static char *user = "";
+static char *passwd = "";
+static char *dir = "";
+
+/* Grab the next token and buy some space for it */
+
+static char *
+next (char **ptr)
+{
+ char *p = *ptr;
+ char *s;
+ char *r;
+ int l = 0;
+
+ while (*p && *p == ' ')
+ p++;
+ s = p;
+ while (*p && (*p != ' ' && *p != '\t'))
+ {
+ l++;
+ p++;
+ }
+ r = xmalloc (l + 1);
+ memcpy (r, s, l);
+ r[l] = 0;
+ *ptr = p;
+ return r;
+}
+
+static void
+e7000_login_command (char *args, int from_tty)
+{
+ if (args)
+ {
+ machine = next (&args);
+ user = next (&args);
+ passwd = next (&args);
+ dir = next (&args);
+ if (from_tty)
+ {
+ printf_unfiltered ("Set info to %s %s %s %s\n", machine, user, passwd, dir);
+ }
+ }
+ else
+ {
+ error ("Syntax is ftplogin <machine> <user> <passwd> <directory>");
+ }
+}
+
+/* Start an ftp transfer from the E7000 to a host */
+
+static void
+e7000_ftp_command (char *args, int from_tty)
+{
+ /* FIXME: arbitrary limit on machine names and such. */
+ char buf[200];
+
+ int oldtimeout = timeout;
+ timeout = remote_timeout;
+
+ sprintf (buf, "ftp %s\r", machine);
+ puts_e7000debug (buf);
+ expect (" Username : ");
+ sprintf (buf, "%s\r", user);
+ puts_e7000debug (buf);
+ expect (" Password : ");
+ write_e7000 (passwd);
+ write_e7000 ("\r");
+ expect ("success\r");
+ expect ("FTP>");
+ sprintf (buf, "cd %s\r", dir);
+ puts_e7000debug (buf);
+ expect ("FTP>");
+ sprintf (buf, "ll 0;s:%s\r", args);
+ puts_e7000debug (buf);
+ expect ("FTP>");
+ puts_e7000debug ("bye\r");
+ expect (":");
+ timeout = oldtimeout;
+}
+
+static int
+e7000_parse_device (char *args, char *dev_name, int baudrate)
+{
+ char junk[128];
+ int n = 0;
+ if (args && strcasecmp (args, "pc") == 0)
+ {
+ strcpy (dev_name, args);
+ using_pc = 1;
+ }
+ else
+ {
+ /* FIXME! temp hack to allow use with port master -
+ target tcp_remote <device> */
+ if (args && strncmp (args, "tcp", 10) == 0)
+ {
+ char com_type[128];
+ n = sscanf (args, " %s %s %d %s", com_type, dev_name, &baudrate, junk);
+ using_tcp_remote = 1;
+ n--;
+ }
+ else if (args)
+ {
+ n = sscanf (args, " %s %d %s", dev_name, &baudrate, junk);
+ }
+
+ if (n != 1 && n != 2)
+ {
+ error ("Bad arguments. Usage:\ttarget e7000 <device> <speed>\n\
+or \t\ttarget e7000 <host>[:<port>]\n\
+or \t\ttarget e7000 tcp_remote <host>[:<port>]\n\
+or \t\ttarget e7000 pc\n");
+ }
+
+#if !defined(__GO32__) && !defined(_WIN32) && !defined(__CYGWIN__)
+ /* FIXME! test for ':' is ambiguous */
+ if (n == 1 && strchr (dev_name, ':') == 0)
+ {
+ /* Default to normal telnet port */
+ /* serial_open will use this to determine tcp communication */
+ strcat (dev_name, ":23");
+ }
+#endif
+ if (!using_tcp_remote && strchr (dev_name, ':'))
+ using_tcp = 1;
+ }
+
+ return n;
+}
+
+/* Stub for catch_errors. */
+
+static int
+e7000_start_remote (void *dummy)
+{
+ int loop;
+ int sync;
+ int try;
+ int quit_trying;
+
+ immediate_quit++; /* Allow user to interrupt it */
+
+ /* Hello? Are you there? */
+ sync = 0;
+ loop = 0;
+ try = 0;
+ quit_trying = 20;
+ putchar_e7000 (CTRLC);
+ while (!sync && ++try <= quit_trying)
+ {
+ int c;
+
+ printf_unfiltered ("[waiting for e7000...]\n");
+
+ write_e7000 ("\r");
+ c = readchar (1);
+
+ /* FIXME! this didn't seem right-> while (c != SERIAL_TIMEOUT)
+ * we get stuck in this loop ...
+ * We may never timeout, and never sync up :-(
+ */
+ while (!sync && c != -1)
+ {
+ /* Dont echo cr's */
+ if (c != '\r')
+ {
+ putchar_unfiltered (c);
+ gdb_flush (gdb_stdout);
+ }
+ /* Shouldn't we either break here, or check for sync in inner loop? */
+ if (c == ':')
+ sync = 1;
+
+ if (loop++ == 20)
+ {
+ putchar_e7000 (CTRLC);
+ loop = 0;
+ }
+
+ QUIT;
+
+ if (quit_flag)
+ {
+ putchar_e7000 (CTRLC);
+ /* Was-> quit_flag = 0; */
+ c = -1;
+ quit_trying = try + 1; /* we don't want to try anymore */
+ }
+ else
+ {
+ c = readchar (1);
+ }
+ }
+ }
+
+ if (!sync)
+ {
+ fprintf_unfiltered (gdb_stderr, "Giving up after %d tries...\n", try);
+ error ("Unable to synchronize with target.\n");
+ }
+
+ puts_e7000debug ("\r");
+ expect_prompt ();
+ puts_e7000debug ("b -\r"); /* Clear breakpoints */
+ expect_prompt ();
+
+ immediate_quit--;
+
+/* This is really the job of start_remote however, that makes an assumption
+ that the target is about to print out a status message of some sort. That
+ doesn't happen here. */
+
+ flush_cached_frames ();
+ registers_changed ();
+ stop_pc = read_pc ();
+ print_stack_frame (get_selected_frame (), 0, SRC_AND_LOC);
+
+ return 1;
+}
+
+static void
+e7000_open (char *args, int from_tty)
+{
+ int n;
+
+ target_preopen (from_tty);
+
+ n = e7000_parse_device (args, dev_name, baudrate);
+
+ push_target (&e7000_ops);
+
+ e7000_desc = serial_open (dev_name);
+
+ if (!e7000_desc)
+ perror_with_name (dev_name);
+
+ if (serial_setbaudrate (e7000_desc, baudrate))
+ {
+ serial_close (e7000_desc);
+ perror_with_name (dev_name);
+ }
+ serial_raw (e7000_desc);
+
+ /* Start the remote connection; if error (0), discard this target.
+ In particular, if the user quits, be sure to discard it
+ (we'd be in an inconsistent state otherwise). */
+ if (!catch_errors (e7000_start_remote, (char *) 0,
+ "Couldn't establish connection to remote target\n", RETURN_MASK_ALL))
+ if (from_tty)
+ printf_filtered ("Remote target %s connected to %s\n", target_shortname,
+ dev_name);
+}
+
+/* Close out all files and local state before this target loses control. */
+
+static void
+e7000_close (int quitting)
+{
+ if (e7000_desc)
+ {
+ serial_close (e7000_desc);
+ e7000_desc = 0;
+ }
+}
+
+/* Terminate the open connection to the remote debugger. Use this
+ when you want to detach and do something else with your gdb. */
+
+static void
+e7000_detach (char *arg, int from_tty)
+{
+ pop_target (); /* calls e7000_close to do the real work */
+ if (from_tty)
+ printf_unfiltered ("Ending remote %s debugging\n", target_shortname);
+}
+
+/* Tell the remote machine to resume. */
+
+static void
+e7000_resume (ptid_t ptid, int step, enum target_signal sigal)
+{
+ if (step)
+ puts_e7000debug ("S\r");
+ else
+ puts_e7000debug ("G\r");
+}
+
+/* Read the remote registers into the block REGS.
+
+ For the H8/300 a register dump looks like:
+
+ PC=00021A CCR=80:I*******
+ ER0 - ER3 0000000A 0000002E 0000002E 00000000
+ ER4 - ER7 00000000 00000000 00000000 00FFEFF6
+ 000218 MOV.B R1L,R2L
+ STEP NORMAL END or
+ BREAK POINT
+ */
+
+char *want_h8300h = "PC=%p CCR=%c\n\
+ ER0 - ER3 %0 %1 %2 %3\n\
+ ER4 - ER7 %4 %5 %6 %7\n";
+
+char *want_nopc_h8300h = "%p CCR=%c\n\
+ ER0 - ER3 %0 %1 %2 %3\n\
+ ER4 - ER7 %4 %5 %6 %7";
+
+char *want_h8300s = "PC=%p CCR=%c\n\
+ MACH=\n\
+ ER0 - ER3 %0 %1 %2 %3\n\
+ ER4 - ER7 %4 %5 %6 %7\n";
+
+char *want_nopc_h8300s = "%p CCR=%c EXR=%9\n\
+ ER0 - ER3 %0 %1 %2 %3\n\
+ ER4 - ER7 %4 %5 %6 %7";
+
+char *want_sh = "PC=%16 SR=%22\n\
+PR=%17 GBR=%18 VBR=%19\n\
+MACH=%20 MACL=%21\n\
+R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\
+R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n";
+
+char *want_nopc_sh = "%16 SR=%22\n\
+ PR=%17 GBR=%18 VBR=%19\n\
+ MACH=%20 MACL=%21\n\
+ R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\
+ R8-15 %8 %9 %10 %11 %12 %13 %14 %15";
+
+char *want_sh3 = "PC=%16 SR=%22\n\
+PR=%17 GBR=%18 VBR=%19\n\
+MACH=%20 MACL=%21 SSR=%23 SPC=%24\n\
+R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\
+R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n\
+R0_BANK0-R3_BANK0 %25 %26 %27 %28\n\
+R4_BANK0-R7_BANK0 %29 %30 %31 %32\n\
+R0_BANK1-R3_BANK1 %33 %34 %35 %36\n\
+R4_BANK1-R7_BANK1 %37 %38 %39 %40";
+
+char *want_nopc_sh3 = "%16 SR=%22\n\
+ PR=%17 GBR=%18 VBR=%19\n\
+ MACH=%20 MACL=%21 SSR=%22 SPC=%23\n\
+ R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\
+ R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n\
+ R0_BANK0-R3_BANK0 %25 %26 %27 %28\n\
+ R4_BANK0-R7_BANK0 %29 %30 %31 %32\n\
+ R0_BANK1-R3_BANK1 %33 %34 %35 %36\n\
+ R4_BANK1-R7_BANK1 %37 %38 %39 %40";
+
+static int
+gch (void)
+{
+ return readchar (timeout);
+}
+
+static unsigned int
+gbyte (void)
+{
+ int high = convert_hex_digit (gch ());
+ int low = convert_hex_digit (gch ());
+
+ return (high << 4) + low;
+}
+
+static void
+fetch_regs_from_dump (int (*nextchar) (), char *want)
+{
+ int regno;
+ char buf[MAX_REGISTER_SIZE];
+
+ int thischar = nextchar ();
+
+ if (want == NULL)
+ internal_error (__FILE__, __LINE__, "Register set not selected.");
+
+ while (*want)
+ {
+ switch (*want)
+ {
+ case '\n':
+ /* Skip to end of line and then eat all new line type stuff */
+ while (thischar != '\n' && thischar != '\r')
+ thischar = nextchar ();
+ while (thischar == '\n' || thischar == '\r')
+ thischar = nextchar ();
+ want++;
+ break;
+
+ case ' ':
+ while (thischar == ' '
+ || thischar == '\t'
+ || thischar == '\r'
+ || thischar == '\n')
+ thischar = nextchar ();
+ want++;
+ break;
+
+ default:
+ if (*want == thischar)
+ {
+ want++;
+ if (*want)
+ thischar = nextchar ();
+
+ }
+ else if (thischar == ' ' || thischar == '\n' || thischar == '\r')
+ {
+ thischar = nextchar ();
+ }
+ else
+ {
+ error ("out of sync in fetch registers wanted <%s>, got <%c 0x%x>",
+ want, thischar, thischar);
+ }
+
+ break;
+ case '%':
+ /* Got a register command */
+ want++;
+ switch (*want)
+ {
+#ifdef PC_REGNUM
+ case 'p':
+ regno = PC_REGNUM;
+ want++;
+ break;
+#endif
+#ifdef CCR_REGNUM
+ case 'c':
+ regno = CCR_REGNUM;
+ want++;
+ break;
+#endif
+#ifdef SP_REGNUM
+ case 's':
+ regno = SP_REGNUM;
+ want++;
+ break;
+#endif
+#ifdef DEPRECATED_FP_REGNUM
+ case 'f':
+ regno = DEPRECATED_FP_REGNUM;
+ want++;
+ break;
+#endif
+
+ default:
+ if (isdigit (want[0]))
+ {
+ if (isdigit (want[1]))
+ {
+ regno = (want[0] - '0') * 10 + want[1] - '0';
+ want += 2;
+ }
+ else
+ {
+ regno = want[0] - '0';
+ want++;
+ }
+ }
+
+ else
+ internal_error (__FILE__, __LINE__, "failed internal consistency check");
+ }
+ store_signed_integer (buf,
+ DEPRECATED_REGISTER_RAW_SIZE (regno),
+ (LONGEST) get_hex (&thischar));
+ supply_register (regno, buf);
+ break;
+ }
+ }
+}
+
+static void
+e7000_fetch_registers (void)
+{
+ int regno;
+ char *wanted = NULL;
+
+ puts_e7000debug ("R\r");
+
+ if (TARGET_ARCHITECTURE->arch == bfd_arch_sh)
+ {
+ wanted = want_sh;
+ switch (TARGET_ARCHITECTURE->mach)
+ {
+ case bfd_mach_sh3:
+ case bfd_mach_sh3e:
+ case bfd_mach_sh4:
+ wanted = want_sh3;
+ }
+ }
+ if (TARGET_ARCHITECTURE->arch == bfd_arch_h8300)
+ {
+ wanted = want_h8300h;
+ switch (TARGET_ARCHITECTURE->mach)
+ {
+ case bfd_mach_h8300s:
+ case bfd_mach_h8300sn:
+ case bfd_mach_h8300sx:
+ case bfd_mach_h8300sxn:
+ wanted = want_h8300s;
+ }
+ }
+
+ fetch_regs_from_dump (gch, wanted);
+
+ /* And supply the extra ones the simulator uses */
+ for (regno = NUM_REALREGS; regno < NUM_REGS; regno++)
+ {
+ int buf = 0;
+
+ supply_register (regno, (char *) (&buf));
+ }
+}
+
+/* Fetch register REGNO, or all registers if REGNO is -1. Returns
+ errno value. */
+
+static void
+e7000_fetch_register (int regno)
+{
+ e7000_fetch_registers ();
+}
+
+/* Store the remote registers from the contents of the block REGS. */
+
+static void
+e7000_store_registers (void)
+{
+ int regno;
+
+ for (regno = 0; regno < NUM_REALREGS; regno++)
+ e7000_store_register (regno);
+
+ registers_changed ();
+}
+
+/* Store register REGNO, or all if REGNO == 0. Return errno value. */
+
+static void
+e7000_store_register (int regno)
+{
+ char buf[200];
+
+ if (regno == -1)
+ {
+ e7000_store_registers ();
+ return;
+ }
+
+ if (TARGET_ARCHITECTURE->arch == bfd_arch_h8300)
+ {
+ if (regno <= 7)
+ {
+ sprintf (buf, ".ER%d %s\r", regno, phex_nz (read_register (regno), 0));
+ puts_e7000debug (buf);
+ }
+ else if (regno == PC_REGNUM)
+ {
+ sprintf (buf, ".PC %s\r", phex_nz (read_register (regno), 0));
+ puts_e7000debug (buf);
+ }
+#ifdef CCR_REGNUM
+ else if (regno == CCR_REGNUM)
+ {
+ sprintf (buf, ".CCR %s\r", phex_nz (read_register (regno), 0));
+ puts_e7000debug (buf);
+ }
+#endif
+ }
+
+ else if (TARGET_ARCHITECTURE->arch == bfd_arch_sh)
+ {
+ if (regno == PC_REGNUM)
+ {
+ sprintf (buf, ".PC %s\r", phex_nz (read_register (regno), 0));
+ puts_e7000debug (buf);
+ }
+
+ else if (regno == SR_REGNUM)
+ {
+ sprintf (buf, ".SR %s\r", phex_nz (read_register (regno), 0));
+ puts_e7000debug (buf);
+ }
+
+ else if (regno == PR_REGNUM)
+ {
+ sprintf (buf, ".PR %s\r", phex_nz (read_register (regno), 0));
+ puts_e7000debug (buf);
+ }
+
+ else if (regno == GBR_REGNUM)
+ {
+ sprintf (buf, ".GBR %s\r", phex_nz (read_register (regno), 0));
+ puts_e7000debug (buf);
+ }
+
+ else if (regno == VBR_REGNUM)
+ {
+ sprintf (buf, ".VBR %s\r", phex_nz (read_register (regno), 0));
+ puts_e7000debug (buf);
+ }
+
+ else if (regno == MACH_REGNUM)
+ {
+ sprintf (buf, ".MACH %s\r", phex_nz (read_register (regno), 0));
+ puts_e7000debug (buf);
+ }
+
+ else if (regno == MACL_REGNUM)
+ {
+ sprintf (buf, ".MACL %s\r", phex_nz (read_register (regno), 0));
+ puts_e7000debug (buf);
+ }
+ else
+ {
+ sprintf (buf, ".R%d %s\r", regno, phex_nz (read_register (regno), 0));
+ puts_e7000debug (buf);
+ }
+ }
+
+ 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. */
+
+static void
+e7000_prepare_to_store (void)
+{
+ /* Do nothing, since we can store individual regs */
+}
+
+static void
+e7000_files_info (struct target_ops *ops)
+{
+ printf_unfiltered ("\tAttached to %s at %d baud.\n", dev_name, baudrate);
+}
+
+static int
+stickbyte (char *where, unsigned int what)
+{
+ static CONST char digs[] = "0123456789ABCDEF";
+
+ where[0] = digs[(what >> 4) & 0xf];
+ where[1] = digs[(what & 0xf) & 0xf];
+
+ return what;
+}
+
+/* Write a small ammount of memory. */
+
+static int
+write_small (CORE_ADDR memaddr, unsigned char *myaddr, int len)
+{
+ int i;
+ char buf[200];
+
+ for (i = 0; i < len; i++)
+ {
+ if (((memaddr + i) & 3) == 0 && (i + 3 < len))
+ {
+ /* Can be done with a long word */
+ sprintf (buf, "m %s %x%02x%02x%02x;l\r",
+ paddr_nz (memaddr + i),
+ myaddr[i], myaddr[i + 1], myaddr[i + 2], myaddr[i + 3]);
+ puts_e7000debug (buf);
+ i += 3;
+ }
+ else
+ {
+ sprintf (buf, "m %s %x\r", paddr_nz (memaddr + i), myaddr[i]);
+ puts_e7000debug (buf);
+ }
+ }
+
+ expect_prompt ();
+
+ return len;
+}
+
+/* Write a large ammount of memory, this only works with the serial
+ mode enabled. Command is sent as
+
+ il ;s:s\r ->
+ <- il ;s:s\r
+ <- ENQ
+ ACK ->
+ <- LO s\r
+ Srecords...
+ ^Z ->
+ <- ENQ
+ ACK ->
+ <- :
+ */
+
+static int
+write_large (CORE_ADDR memaddr, unsigned char *myaddr, int len)
+{
+ int i;
+#define maxstride 128
+ int stride;
+
+ puts_e7000debug ("IL ;S:FK\r");
+ expect (ENQSTRING);
+ putchar_e7000 (ACK);
+ expect ("LO FK\r");
+
+ for (i = 0; i < len; i += stride)
+ {
+ char compose[maxstride * 2 + 50];
+ int address = i + memaddr;
+ int j;
+ int check_sum;
+ int where = 0;
+ int alen;
+
+ stride = len - i;
+ if (stride > maxstride)
+ stride = maxstride;
+
+ compose[where++] = 'S';
+ check_sum = 0;
+ if (address >= 0xffffff)
+ alen = 4;
+ else if (address >= 0xffff)
+ alen = 3;
+ else
+ alen = 2;
+ /* Insert type. */
+ compose[where++] = alen - 1 + '0';
+ /* Insert length. */
+ check_sum += stickbyte (compose + where, alen + stride + 1);
+ where += 2;
+ while (alen > 0)
+ {
+ alen--;
+ check_sum += stickbyte (compose + where, address >> (8 * (alen)));
+ where += 2;
+ }
+
+ for (j = 0; j < stride; j++)
+ {
+ check_sum += stickbyte (compose + where, myaddr[i + j]);
+ where += 2;
+ }
+ stickbyte (compose + where, ~check_sum);
+ where += 2;
+ compose[where++] = '\r';
+ compose[where++] = '\n';
+ compose[where++] = 0;
+
+ serial_write (e7000_desc, compose, where);
+ j = readchar (0);
+ if (j == -1)
+ {
+ /* This is ok - nothing there */
+ }
+ else if (j == ENQ)
+ {
+ /* Hmm, it's trying to tell us something */
+ expect (":");
+ error ("Error writing memory");
+ }
+ else
+ {
+ printf_unfiltered ("@%d}@", j);
+ while ((j = readchar (0)) > 0)
+ {
+ printf_unfiltered ("@{%d}@", j);
+ }
+ }
+ }
+
+ /* Send the trailer record */
+ write_e7000 ("S70500000000FA\r");
+ putchar_e7000 (CTRLZ);
+ expect (ENQSTRING);
+ putchar_e7000 (ACK);
+ expect (":");
+
+ return len;
+}
+
+/* Copy LEN bytes of data from debugger memory at MYADDR to inferior's
+ memory at MEMADDR. Returns length moved.
+
+ Can't use the Srecord load over ethernet, so don't use fast method
+ then. */
+
+static int
+e7000_write_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len)
+{
+ if (len < 16 || using_tcp || using_pc)
+ return write_small (memaddr, myaddr, len);
+ else
+ return write_large (memaddr, myaddr, len);
+}
+
+/* Read LEN bytes from inferior memory at MEMADDR. Put the result
+ at debugger address MYADDR. Returns length moved.
+
+ Small transactions we send
+ m <addr>;l
+ and receive
+ 00000000 12345678 ?
+ */
+
+static int
+e7000_read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len)
+{
+ int count;
+ int c;
+ int i;
+ char buf[200];
+ /* Starting address of this pass. */
+
+/* printf("READ INF %x %x %d\n", memaddr, myaddr, len); */
+ if (((memaddr - 1) + len) < memaddr)
+ {
+ errno = EIO;
+ return 0;
+ }
+
+ sprintf (buf, "m %s;l\r", paddr_nz (memaddr));
+ puts_e7000debug (buf);
+
+ for (count = 0; count < len; count += 4)
+ {
+ /* Suck away the address */
+ c = gch ();
+ while (c != ' ')
+ c = gch ();
+ c = gch ();
+ if (c == '*')
+ { /* Some kind of error */
+ puts_e7000debug (".\r"); /* Some errors leave us in memory input mode */
+ expect_full_prompt ();
+ return -1;
+ }
+ while (c != ' ')
+ c = gch ();
+
+ /* Now read in the data */
+ for (i = 0; i < 4; i++)
+ {
+ int b = gbyte ();
+ if (count + i < len)
+ {
+ myaddr[count + i] = b;
+ }
+ }
+
+ /* Skip the trailing ? and send a . to end and a cr for more */
+ gch ();
+ gch ();
+ if (count + 4 >= len)
+ puts_e7000debug (".\r");
+ else
+ puts_e7000debug ("\r");
+
+ }
+ expect_prompt ();
+ return len;
+}
+
+
+
+/*
+ For large transfers we used to send
+
+
+ d <addr> <endaddr>\r
+
+ and receive
+ <ADDRESS> < D A T A > < ASCII CODE >
+ 00000000 5F FD FD FF DF 7F DF FF 01 00 01 00 02 00 08 04 "_..............."
+ 00000010 FF D7 FF 7F D7 F1 7F FF 00 05 00 00 08 00 40 00 "..............@."
+ 00000020 7F FD FF F7 7F FF FF F7 00 00 00 00 00 00 00 00 "................"
+
+ A cost in chars for each transaction of 80 + 5*n-bytes.
+
+ Large transactions could be done with the srecord load code, but
+ there is a pause for a second before dumping starts, which slows the
+ average rate down!
+ */
+
+static int
+e7000_read_inferior_memory_large (CORE_ADDR memaddr, unsigned char *myaddr,
+ int len)
+{
+ int count;
+ int c;
+ char buf[200];
+
+ /* Starting address of this pass. */
+
+ if (((memaddr - 1) + len) < memaddr)
+ {
+ errno = EIO;
+ return 0;
+ }
+
+ sprintf (buf, "d %s %s\r", paddr_nz (memaddr), paddr_nz (memaddr + len - 1));
+ puts_e7000debug (buf);
+
+ count = 0;
+ c = gch ();
+
+ /* skip down to the first ">" */
+ while (c != '>')
+ c = gch ();
+ /* now skip to the end of that line */
+ while (c != '\r')
+ c = gch ();
+ c = gch ();
+
+ while (count < len)
+ {
+ /* get rid of any white space before the address */
+ while (c <= ' ')
+ c = gch ();
+
+ /* Skip the address */
+ get_hex (&c);
+
+ /* read in the bytes on the line */
+ while (c != '"' && count < len)
+ {
+ if (c == ' ')
+ c = gch ();
+ else
+ {
+ myaddr[count++] = get_hex (&c);
+ }
+ }
+ /* throw out the rest of the line */
+ while (c != '\r')
+ c = gch ();
+ }
+
+ /* wait for the ":" prompt */
+ while (c != ':')
+ c = gch ();
+
+ return len;
+}
+
+#if 0
+
+static int
+fast_but_for_the_pause_e7000_read_inferior_memory (CORE_ADDR memaddr,
+ char *myaddr, int len)
+{
+ int loop;
+ int c;
+ char buf[200];
+
+ if (((memaddr - 1) + len) < memaddr)
+ {
+ errno = EIO;
+ return 0;
+ }
+
+ sprintf (buf, "is %x@%x:s\r", memaddr, len);
+ puts_e7000debug (buf);
+ gch ();
+ c = gch ();
+ if (c != ENQ)
+ {
+ /* Got an error */
+ error ("Memory read error");
+ }
+ putchar_e7000 (ACK);
+ expect ("SV s");
+ loop = 1;
+ while (loop)
+ {
+ int type;
+ int length;
+ int addr;
+ int i;
+
+ c = gch ();
+ switch (c)
+ {
+ case ENQ: /* ENQ, at the end */
+ loop = 0;
+ break;
+ case 'S':
+ /* Start of an Srecord */
+ type = gch ();
+ length = gbyte ();
+ switch (type)
+ {
+ case '7': /* Termination record, ignore */
+ case '0':
+ case '8':
+ case '9':
+ /* Header record - ignore it */
+ while (length--)
+ {
+ gbyte ();
+ }
+ break;
+ case '1':
+ case '2':
+ case '3':
+ {
+ int alen;
+
+ alen = type - '0' + 1;
+ addr = 0;
+ while (alen--)
+ {
+ addr = (addr << 8) + gbyte ();
+ length--;
+ }
+
+ for (i = 0; i < length - 1; i++)
+ myaddr[i + addr - memaddr] = gbyte ();
+
+ gbyte (); /* Ignore checksum */
+ }
+ }
+ }
+ }
+
+ putchar_e7000 (ACK);
+ expect ("TOP ADDRESS =");
+ expect ("END ADDRESS =");
+ expect (":");
+
+ return len;
+}
+
+#endif
+
+/* Transfer LEN bytes between GDB address MYADDR and target address
+ MEMADDR. If WRITE is non-zero, transfer them to the target,
+ otherwise transfer them from the target. TARGET is unused.
+
+ Returns the number of bytes transferred. */
+
+static int
+e7000_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len,
+ int write, struct mem_attrib *attrib,
+ struct target_ops *target)
+{
+ if (write)
+ return e7000_write_inferior_memory (memaddr, myaddr, len);
+ else if (len < 16)
+ return e7000_read_inferior_memory (memaddr, myaddr, len);
+ else
+ return e7000_read_inferior_memory_large (memaddr, myaddr, len);
+}
+
+static void
+e7000_kill (void)
+{
+}
+
+static void
+e7000_load (char *args, int from_tty)
+{
+ struct cleanup *old_chain;
+ asection *section;
+ bfd *pbfd;
+ bfd_vma entry;
+#define WRITESIZE 0x1000
+ char buf[2 + 4 + 4 + WRITESIZE]; /* `DT' + <addr> + <len> + <data> */
+ char *filename;
+ int quiet;
+ int nostart;
+ time_t start_time, end_time; /* Start and end times of download */
+ unsigned long data_count; /* Number of bytes transferred to memory */
+ int oldtimeout = timeout;
+
+ timeout = remote_timeout;
+
+
+ /* FIXME! change test to test for type of download */
+ if (!using_tcp)
+ {
+ generic_load (args, from_tty);
+ return;
+ }
+
+ /* for direct tcp connections, we can do a fast binary download */
+ buf[0] = 'D';
+ buf[1] = 'T';
+ quiet = 0;
+ nostart = 0;
+ filename = NULL;
+
+ while (*args != '\000')
+ {
+ char *arg;
+
+ while (isspace (*args))
+ args++;
+
+ arg = args;
+
+ while ((*args != '\000') && !isspace (*args))
+ args++;
+
+ if (*args != '\000')
+ *args++ = '\000';
+
+ if (*arg != '-')
+ filename = arg;
+ else if (strncmp (arg, "-quiet", strlen (arg)) == 0)
+ quiet = 1;
+ else if (strncmp (arg, "-nostart", strlen (arg)) == 0)
+ nostart = 1;
+ else
+ error ("unknown option `%s'", arg);
+ }
+
+ if (!filename)
+ filename = get_exec_file (1);
+
+ pbfd = bfd_openr (filename, gnutarget);
+ if (pbfd == NULL)
+ {
+ perror_with_name (filename);
+ return;
+ }
+ old_chain = make_cleanup_bfd_close (pbfd);
+
+ if (!bfd_check_format (pbfd, bfd_object))
+ error ("\"%s\" is not an object file: %s", filename,
+ bfd_errmsg (bfd_get_error ()));
+
+ start_time = time (NULL);
+ data_count = 0;
+
+ puts_e7000debug ("mw\r");
+
+ expect ("\nOK");
+
+ for (section = pbfd->sections; section; section = section->next)
+ {
+ if (bfd_get_section_flags (pbfd, section) & SEC_LOAD)
+ {
+ bfd_vma section_address;
+ bfd_size_type section_size;
+ file_ptr fptr;
+
+ section_address = bfd_get_section_vma (pbfd, section);
+ section_size = bfd_get_section_size_before_reloc (section);
+
+ if (!quiet)
+ printf_filtered ("[Loading section %s at 0x%s (%s bytes)]\n",
+ bfd_get_section_name (pbfd, section),
+ paddr_nz (section_address),
+ paddr_u (section_size));
+
+ fptr = 0;
+
+ data_count += section_size;
+
+ while (section_size > 0)
+ {
+ int count;
+ static char inds[] = "|/-\\";
+ static int k = 0;
+
+ QUIT;
+
+ count = min (section_size, WRITESIZE);
+
+ buf[2] = section_address >> 24;
+ buf[3] = section_address >> 16;
+ buf[4] = section_address >> 8;
+ buf[5] = section_address;
+
+ buf[6] = count >> 24;
+ buf[7] = count >> 16;
+ buf[8] = count >> 8;
+ buf[9] = count;
+
+ bfd_get_section_contents (pbfd, section, buf + 10, fptr, count);
+
+ if (serial_write (e7000_desc, buf, count + 10))
+ fprintf_unfiltered (gdb_stderr,
+ "e7000_load: serial_write failed: %s\n",
+ safe_strerror (errno));
+
+ expect ("OK");
+
+ if (!quiet)
+ {
+ printf_unfiltered ("\r%c", inds[k++ % 4]);
+ gdb_flush (gdb_stdout);
+ }
+
+ section_address += count;
+ fptr += count;
+ section_size -= count;
+ }
+ }
+ }
+
+ write_e7000 ("ED");
+
+ expect_prompt ();
+
+ end_time = time (NULL);
+
+/* Finally, make the PC point at the start address */
+
+ if (exec_bfd)
+ write_pc (bfd_get_start_address (exec_bfd));
+
+ inferior_ptid = null_ptid; /* No process now */
+
+/* This is necessary because many things were based on the PC at the time that
+ we attached to the monitor, which is no longer valid now that we have loaded
+ new code (and just changed the PC). Another way to do this might be to call
+ normal_stop, except that the stack may not be valid, and things would get
+ horribly confused... */
+
+ clear_symtab_users ();
+
+ if (!nostart)
+ {
+ entry = bfd_get_start_address (pbfd);
+
+ if (!quiet)
+ printf_unfiltered ("[Starting %s at 0x%s]\n", filename, paddr_nz (entry));
+
+/* start_routine (entry); */
+ }
+
+ report_transfer_performance (data_count, start_time, end_time);
+
+ do_cleanups (old_chain);
+ timeout = oldtimeout;
+}
+
+/* Clean up when a program exits.
+
+ The program actually lives on in the remote processor's RAM, and may be
+ run again without a download. Don't leave it full of breakpoint
+ instructions. */
+
+static void
+e7000_mourn_inferior (void)
+{
+ remove_breakpoints ();
+ unpush_target (&e7000_ops);
+ generic_mourn_inferior (); /* Do all the proper things now */
+}
+
+#define MAX_BREAKPOINTS 200
+#ifdef HARD_BREAKPOINTS
+#define MAX_E7000DEBUG_BREAKPOINTS (BC_BREAKPOINTS ? 5 : MAX_BREAKPOINTS)
+#else
+#define MAX_E7000DEBUG_BREAKPOINTS MAX_BREAKPOINTS
+#endif
+
+/* Since we can change to soft breakpoints dynamically, we must define
+ more than enough. Was breakaddr[MAX_E7000DEBUG_BREAKPOINTS]. */
+static CORE_ADDR breakaddr[MAX_BREAKPOINTS] =
+{0};
+
+static int
+e7000_insert_breakpoint (CORE_ADDR addr, char *shadow)
+{
+ int i;
+ char buf[200];
+#if 0
+ static char nop[2] = NOP;
+#endif
+
+ for (i = 0; i <= MAX_E7000DEBUG_BREAKPOINTS; i++)
+ if (breakaddr[i] == 0)
+ {
+ breakaddr[i] = addr;
+ /* Save old contents, and insert a nop in the space */
+#ifdef HARD_BREAKPOINTS
+ if (BC_BREAKPOINTS)
+ {
+ sprintf (buf, "BC%d A=%s\r", i + 1, paddr_nz (addr));
+ puts_e7000debug (buf);
+ }
+ else
+ {
+ sprintf (buf, "B %s\r", paddr_nz (addr));
+ puts_e7000debug (buf);
+ }
+#else
+#if 0
+ e7000_read_inferior_memory (addr, shadow, 2);
+ e7000_write_inferior_memory (addr, nop, 2);
+#endif
+
+ sprintf (buf, "B %x\r", addr);
+ puts_e7000debug (buf);
+#endif
+ expect_prompt ();
+ return 0;
+ }
+
+ error ("Too many breakpoints ( > %d) for the E7000\n",
+ MAX_E7000DEBUG_BREAKPOINTS);
+ return 1;
+}
+
+static int
+e7000_remove_breakpoint (CORE_ADDR addr, char *shadow)
+{
+ int i;
+ char buf[200];
+
+ for (i = 0; i < MAX_E7000DEBUG_BREAKPOINTS; i++)
+ if (breakaddr[i] == addr)
+ {
+ breakaddr[i] = 0;
+#ifdef HARD_BREAKPOINTS
+ if (BC_BREAKPOINTS)
+ {
+ sprintf (buf, "BC%d - \r", i + 1);
+ puts_e7000debug (buf);
+ }
+ else
+ {
+ sprintf (buf, "B - %s\r", paddr_nz (addr));
+ puts_e7000debug (buf);
+ }
+ expect_prompt ();
+#else
+ sprintf (buf, "B - %s\r", paddr_nz (addr));
+ puts_e7000debug (buf);
+ expect_prompt ();
+
+#if 0
+ /* Replace the insn under the break */
+ e7000_write_inferior_memory (addr, shadow, 2);
+#endif
+#endif
+
+ return 0;
+ }
+
+ warning ("Can't find breakpoint associated with 0x%s\n", paddr_nz (addr));
+ return 1;
+}
+
+/* Put a command string, in args, out to STDBUG. Output from STDBUG
+ is placed on the users terminal until the prompt is seen. */
+
+static void
+e7000_command (char *args, int fromtty)
+{
+ /* FIXME: arbitrary limit on length of args. */
+ char buf[200];
+
+ echo = 0;
+
+ if (!e7000_desc)
+ error ("e7000 target not open.");
+ if (!args)
+ {
+ puts_e7000debug ("\r");
+ }
+ else
+ {
+ sprintf (buf, "%s\r", args);
+ puts_e7000debug (buf);
+ }
+
+ echo++;
+ ctrl_c = 2;
+ expect_full_prompt ();
+ echo--;
+ ctrl_c = 0;
+ printf_unfiltered ("\n");
+
+ /* Who knows what the command did... */
+ registers_changed ();
+}
+
+
+static void
+e7000_drain_command (char *args, int fromtty)
+{
+ int c;
+
+ puts_e7000debug ("end\r");
+ putchar_e7000 (CTRLC);
+
+ while ((c = readchar (1)) != -1)
+ {
+ if (quit_flag)
+ {
+ putchar_e7000 (CTRLC);
+ quit_flag = 0;
+ }
+ if (c > ' ' && c < 127)
+ printf_unfiltered ("%c", c & 0xff);
+ else
+ printf_unfiltered ("<%x>", c & 0xff);
+ }
+}
+
+#define NITEMS 7
+
+static int
+why_stop (void)
+{
+ static char *strings[NITEMS] =
+ {
+ "STEP NORMAL",
+ "BREAK POINT",
+ "BREAK KEY",
+ "BREAK CONDI",
+ "CYCLE ACCESS",
+ "ILLEGAL INSTRUCTION",
+ "WRITE PROTECT",
+ };
+ char *p[NITEMS];
+ int c;
+ int i;
+
+ for (i = 0; i < NITEMS; ++i)
+ p[i] = strings[i];
+
+ c = gch ();
+ while (1)
+ {
+ for (i = 0; i < NITEMS; i++)
+ {
+ if (c == *(p[i]))
+ {
+ p[i]++;
+ if (*(p[i]) == 0)
+ {
+ /* found one of the choices */
+ return i;
+ }
+ }
+ else
+ p[i] = strings[i];
+ }
+
+ c = gch ();
+ }
+}
+
+/* Suck characters, if a string match, then return the strings index
+ otherwise echo them. */
+
+static int
+expect_n (char **strings)
+{
+ char *(ptr[10]);
+ int n;
+ int c;
+ char saveaway[100];
+ char *buffer = saveaway;
+ /* Count number of expect strings */
+
+ for (n = 0; strings[n]; n++)
+ {
+ ptr[n] = strings[n];
+ }
+
+ while (1)
+ {
+ int i;
+ int gotone = 0;
+
+ c = readchar (1);
+ if (c == -1)
+ {
+ printf_unfiltered ("[waiting for e7000...]\n");
+ }
+#ifdef __GO32__
+ if (kbhit ())
+ {
+ int k = getkey ();
+
+ if (k == 1)
+ quit_flag = 1;
+ }
+#endif
+ if (quit_flag)
+ {
+ putchar_e7000 (CTRLC); /* interrupt the running program */
+ quit_flag = 0;
+ }
+
+ for (i = 0; i < n; i++)
+ {
+ if (c == ptr[i][0])
+ {
+ ptr[i]++;
+ if (ptr[i][0] == 0)
+ {
+ /* Gone all the way */
+ return i;
+ }
+ gotone = 1;
+ }
+ else
+ {
+ ptr[i] = strings[i];
+ }
+ }
+
+ if (gotone)
+ {
+ /* Save it up incase we find that there was no match */
+ *buffer++ = c;
+ }
+ else
+ {
+ if (buffer != saveaway)
+ {
+ *buffer++ = 0;
+ printf_unfiltered ("%s", buffer);
+ buffer = saveaway;
+ }
+ if (c != -1)
+ {
+ putchar_unfiltered (c);
+ gdb_flush (gdb_stdout);
+ }
+ }
+ }
+}
+
+/* We subtract two from the pc here rather than use
+ DECR_PC_AFTER_BREAK since the e7000 doesn't always add two to the
+ pc, and the simulators never do. */
+
+static void
+sub2_from_pc (void)
+{
+ char buf[4];
+ char buf2[200];
+
+ store_signed_integer (buf,
+ DEPRECATED_REGISTER_RAW_SIZE (PC_REGNUM),
+ read_register (PC_REGNUM) - 2);
+ supply_register (PC_REGNUM, buf);
+ sprintf (buf2, ".PC %s\r", phex_nz (read_register (PC_REGNUM), 0));
+ puts_e7000debug (buf2);
+}
+
+#define WAS_SLEEP 0
+#define WAS_INT 1
+#define WAS_RUNNING 2
+#define WAS_OTHER 3
+
+static char *estrings[] =
+{
+ "** SLEEP",
+ "BREAK !",
+ "** PC",
+ "PC",
+ NULL
+};
+
+/* Wait until the remote machine stops, then return, storing status in
+ STATUS just as `wait' would. */
+
+static ptid_t
+e7000_wait (ptid_t ptid, struct target_waitstatus *status)
+{
+ int stop_reason;
+ int regno;
+ int running_count = 0;
+ int had_sleep = 0;
+ int loop = 1;
+ char *wanted_nopc = NULL;
+
+ /* Then echo chars until PC= string seen */
+ gch (); /* Drop cr */
+ gch (); /* and space */
+
+ while (loop)
+ {
+ switch (expect_n (estrings))
+ {
+ case WAS_OTHER:
+ /* how did this happen ? */
+ loop = 0;
+ break;
+ case WAS_SLEEP:
+ had_sleep = 1;
+ putchar_e7000 (CTRLC);
+ loop = 0;
+ break;
+ case WAS_INT:
+ loop = 0;
+ break;
+ case WAS_RUNNING:
+ running_count++;
+ if (running_count == 20)
+ {
+ printf_unfiltered ("[running...]\n");
+ running_count = 0;
+ }
+ break;
+ default:
+ /* error? */
+ break;
+ }
+ }
+
+ /* Skip till the PC= */
+ expect ("=");
+
+ if (TARGET_ARCHITECTURE->arch == bfd_arch_sh)
+ {
+ wanted_nopc = want_nopc_sh;
+ switch (TARGET_ARCHITECTURE->mach)
+ {
+ case bfd_mach_sh3:
+ case bfd_mach_sh3e:
+ case bfd_mach_sh4:
+ wanted_nopc = want_nopc_sh3;
+ }
+ }
+ if (TARGET_ARCHITECTURE->arch == bfd_arch_h8300)
+ {
+ wanted_nopc = want_nopc_h8300h;
+ switch (TARGET_ARCHITECTURE->mach)
+ {
+ case bfd_mach_h8300s:
+ case bfd_mach_h8300sn:
+ case bfd_mach_h8300sx:
+ case bfd_mach_h8300sxn:
+ wanted_nopc = want_nopc_h8300s;
+ }
+ }
+ fetch_regs_from_dump (gch, wanted_nopc);
+
+ /* And supply the extra ones the simulator uses */
+ for (regno = NUM_REALREGS; regno < NUM_REGS; regno++)
+ {
+ int buf = 0;
+ supply_register (regno, (char *) &buf);
+ }
+
+ stop_reason = why_stop ();
+ expect_full_prompt ();
+
+ status->kind = TARGET_WAITKIND_STOPPED;
+ status->value.sig = TARGET_SIGNAL_TRAP;
+
+ switch (stop_reason)
+ {
+ case 1: /* Breakpoint */
+ write_pc (read_pc ()); /* PC is always off by 2 for breakpoints */
+ status->value.sig = TARGET_SIGNAL_TRAP;
+ break;
+ case 0: /* Single step */
+ status->value.sig = TARGET_SIGNAL_TRAP;
+ break;
+ case 2: /* Interrupt */
+ if (had_sleep)
+ {
+ status->value.sig = TARGET_SIGNAL_TRAP;
+ sub2_from_pc ();
+ }
+ else
+ {
+ status->value.sig = TARGET_SIGNAL_INT;
+ }
+ break;
+ case 3:
+ break;
+ case 4:
+ printf_unfiltered ("a cycle address error?\n");
+ status->value.sig = TARGET_SIGNAL_UNKNOWN;
+ break;
+ case 5:
+ status->value.sig = TARGET_SIGNAL_ILL;
+ break;
+ case 6:
+ status->value.sig = TARGET_SIGNAL_SEGV;
+ break;
+ case 7: /* Anything else (NITEMS + 1) */
+ printf_unfiltered ("a write protect error?\n");
+ status->value.sig = TARGET_SIGNAL_UNKNOWN;
+ break;
+ default:
+ /* Get the user's attention - this should never happen. */
+ internal_error (__FILE__, __LINE__, "failed internal consistency check");
+ }
+
+ return inferior_ptid;
+}
+
+/* Stop the running program. */
+
+static void
+e7000_stop (void)
+{
+ /* Sending a ^C is supposed to stop the running program. */
+ putchar_e7000 (CTRLC);
+}
+
+/* Define the target subroutine names. */
+
+struct target_ops e7000_ops;
+
+static void
+init_e7000_ops (void)
+{
+ e7000_ops.to_shortname = "e7000";
+ e7000_ops.to_longname = "Remote Renesas e7000 target";
+ e7000_ops.to_doc = "Use a remote Renesas e7000 ICE connected by a serial line;\n\
+or a network connection.\n\
+Arguments are the name of the device for the serial line,\n\
+the speed to connect at in bits per second.\n\
+eg\n\
+target e7000 /dev/ttya 9600\n\
+target e7000 foobar";
+ e7000_ops.to_open = e7000_open;
+ e7000_ops.to_close = e7000_close;
+ e7000_ops.to_detach = e7000_detach;
+ e7000_ops.to_resume = e7000_resume;
+ e7000_ops.to_wait = e7000_wait;
+ e7000_ops.to_fetch_registers = e7000_fetch_register;
+ e7000_ops.to_store_registers = e7000_store_register;
+ e7000_ops.to_prepare_to_store = e7000_prepare_to_store;
+ e7000_ops.to_xfer_memory = e7000_xfer_inferior_memory;
+ e7000_ops.to_files_info = e7000_files_info;
+ e7000_ops.to_insert_breakpoint = e7000_insert_breakpoint;
+ e7000_ops.to_remove_breakpoint = e7000_remove_breakpoint;
+ e7000_ops.to_kill = e7000_kill;
+ e7000_ops.to_load = e7000_load;
+ e7000_ops.to_create_inferior = e7000_create_inferior;
+ e7000_ops.to_mourn_inferior = e7000_mourn_inferior;
+ e7000_ops.to_stop = e7000_stop;
+ e7000_ops.to_stratum = process_stratum;
+ e7000_ops.to_has_all_memory = 1;
+ e7000_ops.to_has_memory = 1;
+ e7000_ops.to_has_stack = 1;
+ e7000_ops.to_has_registers = 1;
+ e7000_ops.to_has_execution = 1;
+ e7000_ops.to_magic = OPS_MAGIC;
+};
+
+extern initialize_file_ftype _initialize_remote_e7000; /* -Wmissing-prototypes */
+
+void
+_initialize_remote_e7000 (void)
+{
+ init_e7000_ops ();
+ add_target (&e7000_ops);
+
+ add_com ("e7000", class_obscure, e7000_command,
+ "Send a command to the e7000 monitor.");
+
+ add_com ("ftplogin", class_obscure, e7000_login_command,
+ "Login to machine and change to directory.");
+
+ add_com ("ftpload", class_obscure, e7000_ftp_command,
+ "Fetch and load a file from previously described place.");
+
+ add_com ("drain", class_obscure, e7000_drain_command,
+ "Drain pending e7000 text buffers.");
+
+ add_show_from_set (add_set_cmd ("usehardbreakpoints", no_class,
+ var_integer, (char *) &use_hard_breakpoints,
+ "Set use of hardware breakpoints for all breakpoints.\n", &setlist),
+ &showlist);
+}
projects / deliverable / binutils-gdb.git / blobdiff