1 /* Remote debugging interface for Hitachi E7000 ICE, for GDB
3 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
4 2002 Free Software Foundation, Inc.
6 Contributed by Cygnus Support.
8 Written by Steve Chamberlain for Cygnus Support.
10 This file is part of GDB.
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 2 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to the Free Software
24 Foundation, Inc., 59 Temple Place - Suite 330,
25 Boston, MA 02111-1307, USA. */
27 /* The E7000 is an in-circuit emulator for the Hitachi H8/300-H and
28 Hitachi-SH processor. It has serial port and a lan port.
30 The monitor command set makes it difficult to load large ammounts of
31 data over the lan without using ftp - so try not to issue load
32 commands when communicating over ethernet; use the ftpload command.
34 The monitor pauses for a second when dumping srecords to the serial
35 line too, so we use a slower per byte mechanism but without the
36 startup overhead. Even so, it's pretty slow... */
45 #include "gdb_string.h"
47 #include <sys/types.h>
49 #include "remote-utils.h"
57 #define HARD_BREAKPOINTS /* Now handled by set option. */
58 #define BC_BREAKPOINTS use_hard_breakpoints
66 /* This file is used by 2 different targets, sh-elf and h8300. The
67 h8300 is not multiarched and doesn't use the registers defined in
68 tm-sh.h. To avoid using a macro GDB_TARGET_IS_SH, we do runtime check
69 of the target, which requires that these namse below are always
70 defined also in the h8300 case. */
72 #if !defined (PR_REGNUM)
75 #if !defined (GBR_REGNUM)
78 #if !defined (VBR_REGNUM)
81 #if !defined (MACH_REGNUM)
82 #define MACH_REGNUM -1
84 #if !defined (MACL_REGNUM)
85 #define MACL_REGNUM -1
87 #if !defined (SR_REGNUM)
91 extern void report_transfer_performance (unsigned long, time_t, time_t);
93 extern char *sh_processor_type;
95 /* Local function declarations. */
97 static void e7000_close (int);
99 static void e7000_fetch_register (int);
101 static void e7000_store_register (int);
103 static void e7000_command (char *, int);
105 static void e7000_login_command (char *, int);
107 static void e7000_ftp_command (char *, int);
109 static void e7000_drain_command (char *, int);
111 static void expect (char *);
113 static void expect_full_prompt (void);
115 static void expect_prompt (void);
117 static int e7000_parse_device (char *args, char *dev_name, int baudrate);
120 static struct serial *e7000_desc;
122 /* Allow user to chose between using hardware breakpoints or memory. */
123 static int use_hard_breakpoints = 0; /* use sw breakpoints by default */
125 /* Nonzero if using the tcp serial driver. */
127 static int using_tcp; /* direct tcp connection to target */
128 static int using_tcp_remote; /* indirect connection to target
129 via tcp to controller */
131 /* Nonzero if using the pc isa card. */
135 extern struct target_ops e7000_ops; /* Forward declaration */
137 char *ENQSTRING = "\005";
139 /* Nonzero if some routine (as opposed to the user) wants echoing.
140 FIXME: Do this reentrantly with an extra parameter. */
146 static int timeout = 20;
148 /* Send data to e7000debug. */
151 puts_e7000debug (char *buf)
154 error ("Use \"target e7000 ...\" first.");
157 printf_unfiltered ("Sending %s\n", buf);
159 if (serial_write (e7000_desc, buf, strlen (buf)))
160 fprintf_unfiltered (gdb_stderr, "serial_write failed: %s\n", safe_strerror (errno));
162 /* And expect to see it echoed, unless using the pc interface */
170 putchar_e7000 (int x)
175 serial_write (e7000_desc, b, 1);
179 write_e7000 (char *s)
181 serial_write (e7000_desc, s, strlen (s));
192 /* Read a character from the remote system, doing all the fancy timeout
193 stuff. Handles serial errors and EOF. If TIMEOUT == 0, and no chars,
194 returns -1, else returns next char. Discards chars > 127. */
197 readchar (int timeout)
203 c = serial_readchar (e7000_desc, timeout);
207 if (c == SERIAL_TIMEOUT)
212 error ("Timeout reading from remote system.");
215 error ("Serial communication error");
219 putchar_unfiltered (c);
220 gdb_flush (gdb_stdout);
230 static char b[8][10];
242 sprintf (b[p], "<%d>", x);
249 /* Scan input from the remote system, until STRING is found. If
250 DISCARD is non-zero, then discard non-matching input, else print it
251 out. Let the user break out immediately. */
254 expect (char *string)
262 c = readchar (timeout);
266 if (c == '\r' || c == '\n')
269 putchar_unfiltered ('\n');
275 putchar_unfiltered (c);
277 gdb_flush (gdb_stdout);
279 if (normal (c) == normal (*p++))
288 if (normal (c) == normal (string[0]))
294 /* Keep discarding input until we see the e7000 prompt.
296 The convention for dealing with the prompt is that you
298 o *then* wait for the prompt.
300 Thus the last thing that a procedure does with the serial line will
301 be an expect_prompt(). Exception: e7000_resume does not wait for
302 the prompt, because the terminal is being handed over to the
303 inferior. However, the next thing which happens after that is a
304 e7000_wait which does wait for the prompt. Note that this includes
305 abnormal exit, e.g. error(). This is necessary to prevent getting
306 into states from which we can't recover. */
315 expect_full_prompt (void)
321 convert_hex_digit (int ch)
323 if (ch >= '0' && ch <= '9')
325 else if (ch >= 'A' && ch <= 'F')
326 return ch - 'A' + 10;
327 else if (ch >= 'a' && ch <= 'f')
328 return ch - 'a' + 10;
335 int value = convert_hex_digit (*start);
338 *start = readchar (timeout);
339 while ((try = convert_hex_digit (*start)) >= 0)
343 *start = readchar (timeout);
349 /* Get N 32-bit words from remote, each preceded by a space, and put
350 them in registers starting at REGNO. */
353 get_hex_regs (int n, int regno)
358 for (i = 0; i < n; i++)
363 for (j = 0; j < 8; j++)
364 val = (val << 4) + get_hex_digit (j == 0);
365 supply_register (regno++, (char *) &val);
370 /* This is called not only when we first attach, but also when the
371 user types "run" after having attached. */
374 e7000_create_inferior (char *execfile, char *args, char **env)
379 error ("Can't pass arguments to remote E7000DEBUG process");
381 if (execfile == 0 || exec_bfd == 0)
382 error ("No executable file specified");
384 entry_pt = (int) bfd_get_start_address (exec_bfd);
386 #ifdef CREATE_INFERIOR_HOOK
387 CREATE_INFERIOR_HOOK (0); /* No process-ID */
390 /* The "process" (board) is already stopped awaiting our commands, and
391 the program is already downloaded. We just set its PC and go. */
393 clear_proceed_status ();
395 /* Tell wait_for_inferior that we've started a new process. */
396 init_wait_for_inferior ();
398 /* Set up the "saved terminal modes" of the inferior
399 based on what modes we are starting it with. */
400 target_terminal_init ();
402 /* Install inferior's terminal modes. */
403 target_terminal_inferior ();
405 /* insert_step_breakpoint (); FIXME, do we need this? */
406 proceed ((CORE_ADDR) entry_pt, -1, 0); /* Let 'er rip... */
409 /* Open a connection to a remote debugger. NAME is the filename used
410 for communication. */
412 static int baudrate = 9600;
413 static char dev_name[100];
415 static char *machine = "";
416 static char *user = "";
417 static char *passwd = "";
418 static char *dir = "";
420 /* Grab the next token and buy some space for it */
430 while (*p && *p == ' ')
433 while (*p && (*p != ' ' && *p != '\t'))
446 e7000_login_command (char *args, int from_tty)
450 machine = next (&args);
452 passwd = next (&args);
456 printf_unfiltered ("Set info to %s %s %s %s\n", machine, user, passwd, dir);
461 error ("Syntax is ftplogin <machine> <user> <passwd> <directory>");
465 /* Start an ftp transfer from the E7000 to a host */
468 e7000_ftp_command (char *args, int from_tty)
470 /* FIXME: arbitrary limit on machine names and such. */
473 int oldtimeout = timeout;
474 timeout = remote_timeout;
476 sprintf (buf, "ftp %s\r", machine);
477 puts_e7000debug (buf);
478 expect (" Username : ");
479 sprintf (buf, "%s\r", user);
480 puts_e7000debug (buf);
481 expect (" Password : ");
482 write_e7000 (passwd);
484 expect ("success\r");
486 sprintf (buf, "cd %s\r", dir);
487 puts_e7000debug (buf);
489 sprintf (buf, "ll 0;s:%s\r", args);
490 puts_e7000debug (buf);
492 puts_e7000debug ("bye\r");
494 timeout = oldtimeout;
498 e7000_parse_device (char *args, char *dev_name, int baudrate)
502 if (args && strcasecmp (args, "pc") == 0)
504 strcpy (dev_name, args);
509 /* FIXME! temp hack to allow use with port master -
510 target tcp_remote <device> */
511 if (args && strncmp (args, "tcp", 10) == 0)
514 n = sscanf (args, " %s %s %d %s", com_type, dev_name, &baudrate, junk);
515 using_tcp_remote = 1;
520 n = sscanf (args, " %s %d %s", dev_name, &baudrate, junk);
523 if (n != 1 && n != 2)
525 error ("Bad arguments. Usage:\ttarget e7000 <device> <speed>\n\
526 or \t\ttarget e7000 <host>[:<port>]\n\
527 or \t\ttarget e7000 tcp_remote <host>[:<port>]\n\
528 or \t\ttarget e7000 pc\n");
531 #if !defined(__GO32__) && !defined(_WIN32) && !defined(__CYGWIN__)
532 /* FIXME! test for ':' is ambiguous */
533 if (n == 1 && strchr (dev_name, ':') == 0)
535 /* Default to normal telnet port */
536 /* serial_open will use this to determine tcp communication */
537 strcat (dev_name, ":23");
540 if (!using_tcp_remote && strchr (dev_name, ':'))
547 /* Stub for catch_errors. */
550 e7000_start_remote (void *dummy)
557 immediate_quit++; /* Allow user to interrupt it */
559 /* Hello? Are you there? */
564 putchar_e7000 (CTRLC);
565 while (!sync && ++try <= quit_trying)
569 printf_unfiltered ("[waiting for e7000...]\n");
574 /* FIXME! this didn't seem right-> while (c != SERIAL_TIMEOUT)
575 * we get stuck in this loop ...
576 * We may never timeout, and never sync up :-(
578 while (!sync && c != -1)
583 putchar_unfiltered (c);
584 gdb_flush (gdb_stdout);
586 /* Shouldn't we either break here, or check for sync in inner loop? */
592 putchar_e7000 (CTRLC);
600 putchar_e7000 (CTRLC);
601 /* Was-> quit_flag = 0; */
603 quit_trying = try + 1; /* we don't want to try anymore */
614 fprintf_unfiltered (gdb_stderr, "Giving up after %d tries...\n", try);
615 error ("Unable to synchronize with target.\n");
618 puts_e7000debug ("\r");
620 puts_e7000debug ("b -\r"); /* Clear breakpoints */
625 /* This is really the job of start_remote however, that makes an assumption
626 that the target is about to print out a status message of some sort. That
627 doesn't happen here. */
629 flush_cached_frames ();
630 registers_changed ();
631 stop_pc = read_pc ();
632 set_current_frame (create_new_frame (read_fp (), stop_pc));
633 select_frame (get_current_frame (), 0);
634 print_stack_frame (selected_frame, -1, 1);
640 e7000_open (char *args, int from_tty)
644 target_preopen (from_tty);
646 n = e7000_parse_device (args, dev_name, baudrate);
648 push_target (&e7000_ops);
650 e7000_desc = serial_open (dev_name);
653 perror_with_name (dev_name);
655 if (serial_setbaudrate (e7000_desc, baudrate))
657 serial_close (e7000_desc);
658 perror_with_name (dev_name);
660 serial_raw (e7000_desc);
662 #ifdef GDB_TARGET_IS_H8300
666 /* Start the remote connection; if error (0), discard this target.
667 In particular, if the user quits, be sure to discard it
668 (we'd be in an inconsistent state otherwise). */
669 if (!catch_errors (e7000_start_remote, (char *) 0,
670 "Couldn't establish connection to remote target\n", RETURN_MASK_ALL))
672 printf_filtered ("Remote target %s connected to %s\n", target_shortname,
676 /* Close out all files and local state before this target loses control. */
679 e7000_close (int quitting)
683 serial_close (e7000_desc);
688 /* Terminate the open connection to the remote debugger. Use this
689 when you want to detach and do something else with your gdb. */
692 e7000_detach (char *arg, int from_tty)
694 pop_target (); /* calls e7000_close to do the real work */
696 printf_unfiltered ("Ending remote %s debugging\n", target_shortname);
699 /* Tell the remote machine to resume. */
702 e7000_resume (ptid_t ptid, int step, enum target_signal sigal)
705 puts_e7000debug ("S\r");
707 puts_e7000debug ("G\r");
710 /* Read the remote registers into the block REGS.
712 For the H8/300 a register dump looks like:
714 PC=00021A CCR=80:I*******
715 ER0 - ER3 0000000A 0000002E 0000002E 00000000
716 ER4 - ER7 00000000 00000000 00000000 00FFEFF6
722 char *want_h8300h = "PC=%p CCR=%c\n\
723 ER0 - ER3 %0 %1 %2 %3\n\
724 ER4 - ER7 %4 %5 %6 %7\n";
726 char *want_nopc_h8300h = "%p CCR=%c\n\
727 ER0 - ER3 %0 %1 %2 %3\n\
728 ER4 - ER7 %4 %5 %6 %7";
730 char *want_h8300s = "PC=%p CCR=%c\n\
732 ER0 - ER3 %0 %1 %2 %3\n\
733 ER4 - ER7 %4 %5 %6 %7\n";
735 char *want_nopc_h8300s = "%p CCR=%c EXR=%9\n\
736 ER0 - ER3 %0 %1 %2 %3\n\
737 ER4 - ER7 %4 %5 %6 %7";
739 char *want_sh = "PC=%16 SR=%22\n\
740 PR=%17 GBR=%18 VBR=%19\n\
742 R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\
743 R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n";
745 char *want_nopc_sh = "%16 SR=%22\n\
746 PR=%17 GBR=%18 VBR=%19\n\
748 R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\
749 R8-15 %8 %9 %10 %11 %12 %13 %14 %15";
751 char *want_sh3 = "PC=%16 SR=%22\n\
752 PR=%17 GBR=%18 VBR=%19\n\
753 MACH=%20 MACL=%21 SSR=%23 SPC=%24\n\
754 R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\
755 R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n\
756 R0_BANK0-R3_BANK0 %25 %26 %27 %28\n\
757 R4_BANK0-R7_BANK0 %29 %30 %31 %32\n\
758 R0_BANK1-R3_BANK1 %33 %34 %35 %36\n\
759 R4_BANK1-R7_BANK1 %37 %38 %39 %40";
761 char *want_nopc_sh3 = "%16 SR=%22\n\
762 PR=%17 GBR=%18 VBR=%19\n\
763 MACH=%20 MACL=%21 SSR=%22 SPC=%23\n\
764 R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\
765 R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n\
766 R0_BANK0-R3_BANK0 %25 %26 %27 %28\n\
767 R4_BANK0-R7_BANK0 %29 %30 %31 %32\n\
768 R0_BANK1-R3_BANK1 %33 %34 %35 %36\n\
769 R4_BANK1-R7_BANK1 %37 %38 %39 %40";
774 return readchar (timeout);
780 int high = convert_hex_digit (gch ());
781 int low = convert_hex_digit (gch ());
783 return (high << 4) + low;
787 fetch_regs_from_dump (int (*nextchar) (), char *want)
790 char buf[MAX_REGISTER_RAW_SIZE];
792 int thischar = nextchar ();
795 internal_error (__FILE__, __LINE__, "Register set not selected.");
802 /* Skip to end of line and then eat all new line type stuff */
803 while (thischar != '\n' && thischar != '\r')
804 thischar = nextchar ();
805 while (thischar == '\n' || thischar == '\r')
806 thischar = nextchar ();
811 while (thischar == ' '
815 thischar = nextchar ();
820 if (*want == thischar)
824 thischar = nextchar ();
827 else if (thischar == ' ' || thischar == '\n' || thischar == '\r')
829 thischar = nextchar ();
833 error ("out of sync in fetch registers wanted <%s>, got <%c 0x%x>",
834 want, thischar, thischar);
839 /* Got a register command */
869 if (isdigit (want[0]))
871 if (isdigit (want[1]))
873 regno = (want[0] - '0') * 10 + want[1] - '0';
878 regno = want[0] - '0';
884 internal_error (__FILE__, __LINE__, "failed internal consistency check");
886 store_signed_integer (buf,
887 REGISTER_RAW_SIZE (regno),
888 (LONGEST) get_hex (&thischar));
889 supply_register (regno, buf);
896 e7000_fetch_registers (void)
901 puts_e7000debug ("R\r");
903 if (TARGET_ARCHITECTURE->arch == bfd_arch_sh)
906 switch (TARGET_ARCHITECTURE->mach)
914 #ifdef GDB_TARGET_IS_H8300
915 if (TARGET_ARCHITECTURE->arch == bfd_arch_h8300)
918 wanted = want_h8300s;
920 wanted = want_h8300h;
924 fetch_regs_from_dump (gch, wanted);
926 /* And supply the extra ones the simulator uses */
927 for (regno = NUM_REALREGS; regno < NUM_REGS; regno++)
931 supply_register (regno, (char *) (&buf));
935 /* Fetch register REGNO, or all registers if REGNO is -1. Returns
939 e7000_fetch_register (int regno)
941 e7000_fetch_registers ();
944 /* Store the remote registers from the contents of the block REGS. */
947 e7000_store_registers (void)
951 for (regno = 0; regno < NUM_REALREGS; regno++)
952 e7000_store_register (regno);
954 registers_changed ();
957 /* Store register REGNO, or all if REGNO == 0. Return errno value. */
960 e7000_store_register (int regno)
966 e7000_store_registers ();
970 if (TARGET_ARCHITECTURE->arch == bfd_arch_h8300)
974 sprintf (buf, ".ER%d %s\r", regno, phex_nz (read_register (regno), 0));
975 puts_e7000debug (buf);
977 else if (regno == PC_REGNUM)
979 sprintf (buf, ".PC %s\r", phex_nz (read_register (regno), 0));
980 puts_e7000debug (buf);
983 else if (regno == CCR_REGNUM)
985 sprintf (buf, ".CCR %s\r", phex_nz (read_register (regno), 0));
986 puts_e7000debug (buf);
991 else if (TARGET_ARCHITECTURE->arch == bfd_arch_sh)
993 if (regno == PC_REGNUM)
995 sprintf (buf, ".PC %s\r", phex_nz (read_register (regno), 0));
996 puts_e7000debug (buf);
999 else if (regno == SR_REGNUM)
1001 sprintf (buf, ".SR %s\r", phex_nz (read_register (regno), 0));
1002 puts_e7000debug (buf);
1005 else if (regno == PR_REGNUM)
1007 sprintf (buf, ".PR %s\r", phex_nz (read_register (regno), 0));
1008 puts_e7000debug (buf);
1011 else if (regno == GBR_REGNUM)
1013 sprintf (buf, ".GBR %s\r", phex_nz (read_register (regno), 0));
1014 puts_e7000debug (buf);
1017 else if (regno == VBR_REGNUM)
1019 sprintf (buf, ".VBR %s\r", phex_nz (read_register (regno), 0));
1020 puts_e7000debug (buf);
1023 else if (regno == MACH_REGNUM)
1025 sprintf (buf, ".MACH %s\r", phex_nz (read_register (regno), 0));
1026 puts_e7000debug (buf);
1029 else if (regno == MACL_REGNUM)
1031 sprintf (buf, ".MACL %s\r", phex_nz (read_register (regno), 0));
1032 puts_e7000debug (buf);
1036 sprintf (buf, ".R%d %s\r", regno, phex_nz (read_register (regno), 0));
1037 puts_e7000debug (buf);
1044 /* Get ready to modify the registers array. On machines which store
1045 individual registers, this doesn't need to do anything. On machines
1046 which store all the registers in one fell swoop, this makes sure
1047 that registers contains all the registers from the program being
1051 e7000_prepare_to_store (void)
1053 /* Do nothing, since we can store individual regs */
1057 e7000_files_info (struct target_ops *ops)
1059 printf_unfiltered ("\tAttached to %s at %d baud.\n", dev_name, baudrate);
1063 stickbyte (char *where, unsigned int what)
1065 static CONST char digs[] = "0123456789ABCDEF";
1067 where[0] = digs[(what >> 4) & 0xf];
1068 where[1] = digs[(what & 0xf) & 0xf];
1073 /* Write a small ammount of memory. */
1076 write_small (CORE_ADDR memaddr, unsigned char *myaddr, int len)
1081 for (i = 0; i < len; i++)
1083 if (((memaddr + i) & 3) == 0 && (i + 3 < len))
1085 /* Can be done with a long word */
1086 sprintf (buf, "m %s %x%02x%02x%02x;l\r",
1087 paddr_nz (memaddr + i),
1088 myaddr[i], myaddr[i + 1], myaddr[i + 2], myaddr[i + 3]);
1089 puts_e7000debug (buf);
1094 sprintf (buf, "m %s %x\r", paddr_nz (memaddr + i), myaddr[i]);
1095 puts_e7000debug (buf);
1104 /* Write a large ammount of memory, this only works with the serial
1105 mode enabled. Command is sent as
1120 write_large (CORE_ADDR memaddr, unsigned char *myaddr, int len)
1123 #define maxstride 128
1126 puts_e7000debug ("IL ;S:FK\r");
1128 putchar_e7000 (ACK);
1131 for (i = 0; i < len; i += stride)
1133 char compose[maxstride * 2 + 50];
1134 int address = i + memaddr;
1141 if (stride > maxstride)
1144 compose[where++] = 'S';
1146 if (address >= 0xffffff)
1148 else if (address >= 0xffff)
1153 compose[where++] = alen - 1 + '0';
1154 /* Insert length. */
1155 check_sum += stickbyte (compose + where, alen + stride + 1);
1160 check_sum += stickbyte (compose + where, address >> (8 * (alen)));
1164 for (j = 0; j < stride; j++)
1166 check_sum += stickbyte (compose + where, myaddr[i + j]);
1169 stickbyte (compose + where, ~check_sum);
1171 compose[where++] = '\r';
1172 compose[where++] = '\n';
1173 compose[where++] = 0;
1175 serial_write (e7000_desc, compose, where);
1179 /* This is ok - nothing there */
1183 /* Hmm, it's trying to tell us something */
1185 error ("Error writing memory");
1189 printf_unfiltered ("@%d}@", j);
1190 while ((j = readchar (0)) > 0)
1192 printf_unfiltered ("@{%d}@", j);
1197 /* Send the trailer record */
1198 write_e7000 ("S70500000000FA\r");
1199 putchar_e7000 (CTRLZ);
1201 putchar_e7000 (ACK);
1207 /* Copy LEN bytes of data from debugger memory at MYADDR to inferior's
1208 memory at MEMADDR. Returns length moved.
1210 Can't use the Srecord load over ethernet, so don't use fast method
1214 e7000_write_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len)
1216 if (len < 16 || using_tcp || using_pc)
1217 return write_small (memaddr, myaddr, len);
1219 return write_large (memaddr, myaddr, len);
1222 /* Read LEN bytes from inferior memory at MEMADDR. Put the result
1223 at debugger address MYADDR. Returns length moved.
1225 Small transactions we send
1232 e7000_read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len)
1238 /* Starting address of this pass. */
1240 /* printf("READ INF %x %x %d\n", memaddr, myaddr, len); */
1241 if (((memaddr - 1) + len) < memaddr)
1247 sprintf (buf, "m %s;l\r", paddr_nz (memaddr));
1248 puts_e7000debug (buf);
1250 for (count = 0; count < len; count += 4)
1252 /* Suck away the address */
1258 { /* Some kind of error */
1259 puts_e7000debug (".\r"); /* Some errors leave us in memory input mode */
1260 expect_full_prompt ();
1266 /* Now read in the data */
1267 for (i = 0; i < 4; i++)
1270 if (count + i < len)
1272 myaddr[count + i] = b;
1276 /* Skip the trailing ? and send a . to end and a cr for more */
1279 if (count + 4 >= len)
1280 puts_e7000debug (".\r");
1282 puts_e7000debug ("\r");
1292 For large transfers we used to send
1295 d <addr> <endaddr>\r
1298 <ADDRESS> < D A T A > < ASCII CODE >
1299 00000000 5F FD FD FF DF 7F DF FF 01 00 01 00 02 00 08 04 "_..............."
1300 00000010 FF D7 FF 7F D7 F1 7F FF 00 05 00 00 08 00 40 00 "..............@."
1301 00000020 7F FD FF F7 7F FF FF F7 00 00 00 00 00 00 00 00 "................"
1303 A cost in chars for each transaction of 80 + 5*n-bytes.
1305 Large transactions could be done with the srecord load code, but
1306 there is a pause for a second before dumping starts, which slows the
1311 e7000_read_inferior_memory_large (CORE_ADDR memaddr, unsigned char *myaddr,
1318 /* Starting address of this pass. */
1320 if (((memaddr - 1) + len) < memaddr)
1326 sprintf (buf, "d %s %s\r", paddr_nz (memaddr), paddr_nz (memaddr + len - 1));
1327 puts_e7000debug (buf);
1332 /* skip down to the first ">" */
1335 /* now skip to the end of that line */
1342 /* get rid of any white space before the address */
1346 /* Skip the address */
1349 /* read in the bytes on the line */
1350 while (c != '"' && count < len)
1356 myaddr[count++] = get_hex (&c);
1359 /* throw out the rest of the line */
1364 /* wait for the ":" prompt */
1374 fast_but_for_the_pause_e7000_read_inferior_memory (CORE_ADDR memaddr,
1375 char *myaddr, int len)
1381 if (((memaddr - 1) + len) < memaddr)
1387 sprintf (buf, "is %x@%x:s\r", memaddr, len);
1388 puts_e7000debug (buf);
1394 error ("Memory read error");
1396 putchar_e7000 (ACK);
1409 case ENQ: /* ENQ, at the end */
1413 /* Start of an Srecord */
1418 case '7': /* Termination record, ignore */
1422 /* Header record - ignore it */
1434 alen = type - '0' + 1;
1438 addr = (addr << 8) + gbyte ();
1442 for (i = 0; i < length - 1; i++)
1443 myaddr[i + addr - memaddr] = gbyte ();
1445 gbyte (); /* Ignore checksum */
1451 putchar_e7000 (ACK);
1452 expect ("TOP ADDRESS =");
1453 expect ("END ADDRESS =");
1461 /* Transfer LEN bytes between GDB address MYADDR and target address
1462 MEMADDR. If WRITE is non-zero, transfer them to the target,
1463 otherwise transfer them from the target. TARGET is unused.
1465 Returns the number of bytes transferred. */
1468 e7000_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len,
1469 int write, struct mem_attrib *attrib,
1470 struct target_ops *target)
1473 return e7000_write_inferior_memory (memaddr, myaddr, len);
1475 return e7000_read_inferior_memory (memaddr, myaddr, len);
1477 return e7000_read_inferior_memory_large (memaddr, myaddr, len);
1486 e7000_load (char *args, int from_tty)
1488 struct cleanup *old_chain;
1492 #define WRITESIZE 0x1000
1493 char buf[2 + 4 + 4 + WRITESIZE]; /* `DT' + <addr> + <len> + <data> */
1497 time_t start_time, end_time; /* Start and end times of download */
1498 unsigned long data_count; /* Number of bytes transferred to memory */
1499 int oldtimeout = timeout;
1501 timeout = remote_timeout;
1504 /* FIXME! change test to test for type of download */
1507 generic_load (args, from_tty);
1511 /* for direct tcp connections, we can do a fast binary download */
1518 while (*args != '\000')
1522 while (isspace (*args))
1527 while ((*args != '\000') && !isspace (*args))
1530 if (*args != '\000')
1535 else if (strncmp (arg, "-quiet", strlen (arg)) == 0)
1537 else if (strncmp (arg, "-nostart", strlen (arg)) == 0)
1540 error ("unknown option `%s'", arg);
1544 filename = get_exec_file (1);
1546 pbfd = bfd_openr (filename, gnutarget);
1549 perror_with_name (filename);
1552 old_chain = make_cleanup_bfd_close (pbfd);
1554 if (!bfd_check_format (pbfd, bfd_object))
1555 error ("\"%s\" is not an object file: %s", filename,
1556 bfd_errmsg (bfd_get_error ()));
1558 start_time = time (NULL);
1561 puts_e7000debug ("mw\r");
1565 for (section = pbfd->sections; section; section = section->next)
1567 if (bfd_get_section_flags (pbfd, section) & SEC_LOAD)
1569 bfd_vma section_address;
1570 bfd_size_type section_size;
1573 section_address = bfd_get_section_vma (pbfd, section);
1574 section_size = bfd_get_section_size_before_reloc (section);
1577 printf_filtered ("[Loading section %s at 0x%s (%s bytes)]\n",
1578 bfd_get_section_name (pbfd, section),
1579 paddr_nz (section_address),
1580 paddr_u (section_size));
1584 data_count += section_size;
1586 while (section_size > 0)
1589 static char inds[] = "|/-\\";
1594 count = min (section_size, WRITESIZE);
1596 buf[2] = section_address >> 24;
1597 buf[3] = section_address >> 16;
1598 buf[4] = section_address >> 8;
1599 buf[5] = section_address;
1601 buf[6] = count >> 24;
1602 buf[7] = count >> 16;
1603 buf[8] = count >> 8;
1606 bfd_get_section_contents (pbfd, section, buf + 10, fptr, count);
1608 if (serial_write (e7000_desc, buf, count + 10))
1609 fprintf_unfiltered (gdb_stderr,
1610 "e7000_load: serial_write failed: %s\n",
1611 safe_strerror (errno));
1617 printf_unfiltered ("\r%c", inds[k++ % 4]);
1618 gdb_flush (gdb_stdout);
1621 section_address += count;
1623 section_size -= count;
1632 end_time = time (NULL);
1634 /* Finally, make the PC point at the start address */
1637 write_pc (bfd_get_start_address (exec_bfd));
1639 inferior_ptid = null_ptid; /* No process now */
1641 /* This is necessary because many things were based on the PC at the time that
1642 we attached to the monitor, which is no longer valid now that we have loaded
1643 new code (and just changed the PC). Another way to do this might be to call
1644 normal_stop, except that the stack may not be valid, and things would get
1645 horribly confused... */
1647 clear_symtab_users ();
1651 entry = bfd_get_start_address (pbfd);
1654 printf_unfiltered ("[Starting %s at 0x%s]\n", filename, paddr_nz (entry));
1656 /* start_routine (entry); */
1659 report_transfer_performance (data_count, start_time, end_time);
1661 do_cleanups (old_chain);
1662 timeout = oldtimeout;
1665 /* Clean up when a program exits.
1667 The program actually lives on in the remote processor's RAM, and may be
1668 run again without a download. Don't leave it full of breakpoint
1672 e7000_mourn_inferior (void)
1674 remove_breakpoints ();
1675 unpush_target (&e7000_ops);
1676 generic_mourn_inferior (); /* Do all the proper things now */
1679 #define MAX_BREAKPOINTS 200
1680 #ifdef HARD_BREAKPOINTS
1681 #define MAX_E7000DEBUG_BREAKPOINTS (BC_BREAKPOINTS ? 5 : MAX_BREAKPOINTS)
1683 #define MAX_E7000DEBUG_BREAKPOINTS MAX_BREAKPOINTS
1686 /* Since we can change to soft breakpoints dynamically, we must define
1687 more than enough. Was breakaddr[MAX_E7000DEBUG_BREAKPOINTS]. */
1688 static CORE_ADDR breakaddr[MAX_BREAKPOINTS] =
1692 e7000_insert_breakpoint (CORE_ADDR addr, char *shadow)
1697 static char nop[2] = NOP;
1700 for (i = 0; i <= MAX_E7000DEBUG_BREAKPOINTS; i++)
1701 if (breakaddr[i] == 0)
1703 breakaddr[i] = addr;
1704 /* Save old contents, and insert a nop in the space */
1705 #ifdef HARD_BREAKPOINTS
1708 sprintf (buf, "BC%d A=%s\r", i + 1, paddr_nz (addr));
1709 puts_e7000debug (buf);
1713 sprintf (buf, "B %s\r", paddr_nz (addr));
1714 puts_e7000debug (buf);
1718 e7000_read_inferior_memory (addr, shadow, 2);
1719 e7000_write_inferior_memory (addr, nop, 2);
1722 sprintf (buf, "B %x\r", addr);
1723 puts_e7000debug (buf);
1729 error ("Too many breakpoints ( > %d) for the E7000\n",
1730 MAX_E7000DEBUG_BREAKPOINTS);
1735 e7000_remove_breakpoint (CORE_ADDR addr, char *shadow)
1740 for (i = 0; i < MAX_E7000DEBUG_BREAKPOINTS; i++)
1741 if (breakaddr[i] == addr)
1744 #ifdef HARD_BREAKPOINTS
1747 sprintf (buf, "BC%d - \r", i + 1);
1748 puts_e7000debug (buf);
1752 sprintf (buf, "B - %s\r", paddr_nz (addr));
1753 puts_e7000debug (buf);
1757 sprintf (buf, "B - %s\r", paddr_nz (addr));
1758 puts_e7000debug (buf);
1762 /* Replace the insn under the break */
1763 e7000_write_inferior_memory (addr, shadow, 2);
1770 warning ("Can't find breakpoint associated with 0x%s\n", paddr_nz (addr));
1774 /* Put a command string, in args, out to STDBUG. Output from STDBUG
1775 is placed on the users terminal until the prompt is seen. */
1778 e7000_command (char *args, int fromtty)
1780 /* FIXME: arbitrary limit on length of args. */
1786 error ("e7000 target not open.");
1789 puts_e7000debug ("\r");
1793 sprintf (buf, "%s\r", args);
1794 puts_e7000debug (buf);
1799 expect_full_prompt ();
1802 printf_unfiltered ("\n");
1804 /* Who knows what the command did... */
1805 registers_changed ();
1810 e7000_drain_command (char *args, int fromtty)
1814 puts_e7000debug ("end\r");
1815 putchar_e7000 (CTRLC);
1817 while ((c = readchar (1) != -1))
1821 putchar_e7000 (CTRLC);
1824 if (c > ' ' && c < 127)
1825 printf_unfiltered ("%c", c & 0xff);
1827 printf_unfiltered ("<%x>", c & 0xff);
1836 static char *strings[NITEMS] =
1843 "ILLEGAL INSTRUCTION",
1850 for (i = 0; i < NITEMS; ++i)
1856 for (i = 0; i < NITEMS; i++)
1863 /* found one of the choices */
1875 /* Suck characters, if a string match, then return the strings index
1876 otherwise echo them. */
1879 expect_n (char **strings)
1885 char *buffer = saveaway;
1886 /* Count number of expect strings */
1888 for (n = 0; strings[n]; n++)
1890 ptr[n] = strings[n];
1901 printf_unfiltered ("[waiting for e7000...]\n");
1914 putchar_e7000 (CTRLC); /* interrupt the running program */
1918 for (i = 0; i < n; i++)
1925 /* Gone all the way */
1932 ptr[i] = strings[i];
1938 /* Save it up incase we find that there was no match */
1943 if (buffer != saveaway)
1946 printf_unfiltered ("%s", buffer);
1951 putchar_unfiltered (c);
1952 gdb_flush (gdb_stdout);
1958 /* We subtract two from the pc here rather than use
1959 DECR_PC_AFTER_BREAK since the e7000 doesn't always add two to the
1960 pc, and the simulators never do. */
1968 store_signed_integer (buf,
1969 REGISTER_RAW_SIZE (PC_REGNUM),
1970 read_register (PC_REGNUM) - 2);
1971 supply_register (PC_REGNUM, buf);
1972 sprintf (buf2, ".PC %s\r", phex_nz (read_register (PC_REGNUM), 0));
1973 puts_e7000debug (buf2);
1978 #define WAS_RUNNING 2
1981 static char *estrings[] =
1990 /* Wait until the remote machine stops, then return, storing status in
1991 STATUS just as `wait' would. */
1994 e7000_wait (ptid_t ptid, struct target_waitstatus *status)
1998 int running_count = 0;
2001 char *wanted_nopc = NULL;
2003 /* Then echo chars until PC= string seen */
2004 gch (); /* Drop cr */
2005 gch (); /* and space */
2009 switch (expect_n (estrings))
2012 /* how did this happen ? */
2017 putchar_e7000 (CTRLC);
2025 if (running_count == 20)
2027 printf_unfiltered ("[running...]\n");
2037 /* Skip till the PC= */
2040 if (TARGET_ARCHITECTURE->arch == bfd_arch_sh)
2042 wanted_nopc = want_nopc_sh;
2043 switch (TARGET_ARCHITECTURE->mach)
2048 wanted_nopc = want_nopc_sh3;
2051 #ifdef GDB_TARGET_IS_H8300
2052 if (TARGET_ARCHITECTURE->arch == bfd_arch_h8300)
2055 wanted_nopc = want_nopc_h8300s;
2057 wanted_nopc = want_nopc_h8300h;
2060 fetch_regs_from_dump (gch, wanted_nopc);
2062 /* And supply the extra ones the simulator uses */
2063 for (regno = NUM_REALREGS; regno < NUM_REGS; regno++)
2066 supply_register (regno, (char *) &buf);
2069 stop_reason = why_stop ();
2070 expect_full_prompt ();
2072 status->kind = TARGET_WAITKIND_STOPPED;
2073 status->value.sig = TARGET_SIGNAL_TRAP;
2075 switch (stop_reason)
2077 case 1: /* Breakpoint */
2078 write_pc (read_pc ()); /* PC is always off by 2 for breakpoints */
2079 status->value.sig = TARGET_SIGNAL_TRAP;
2081 case 0: /* Single step */
2082 status->value.sig = TARGET_SIGNAL_TRAP;
2084 case 2: /* Interrupt */
2087 status->value.sig = TARGET_SIGNAL_TRAP;
2092 status->value.sig = TARGET_SIGNAL_INT;
2098 printf_unfiltered ("a cycle address error?\n");
2099 status->value.sig = TARGET_SIGNAL_UNKNOWN;
2102 status->value.sig = TARGET_SIGNAL_ILL;
2105 status->value.sig = TARGET_SIGNAL_SEGV;
2107 case 7: /* Anything else (NITEMS + 1) */
2108 printf_unfiltered ("a write protect error?\n");
2109 status->value.sig = TARGET_SIGNAL_UNKNOWN;
2112 /* Get the user's attention - this should never happen. */
2113 internal_error (__FILE__, __LINE__, "failed internal consistency check");
2116 return inferior_ptid;
2119 /* Stop the running program. */
2124 /* Sending a ^C is supposed to stop the running program. */
2125 putchar_e7000 (CTRLC);
2128 /* Define the target subroutine names. */
2130 struct target_ops e7000_ops;
2133 init_e7000_ops (void)
2135 e7000_ops.to_shortname = "e7000";
2136 e7000_ops.to_longname = "Remote Hitachi e7000 target";
2137 e7000_ops.to_doc = "Use a remote Hitachi e7000 ICE connected by a serial line;\n\
2138 or a network connection.\n\
2139 Arguments are the name of the device for the serial line,\n\
2140 the speed to connect at in bits per second.\n\
2142 target e7000 /dev/ttya 9600\n\
2143 target e7000 foobar";
2144 e7000_ops.to_open = e7000_open;
2145 e7000_ops.to_close = e7000_close;
2146 e7000_ops.to_attach = 0;
2147 e7000_ops.to_post_attach = NULL;
2148 e7000_ops.to_require_attach = NULL;
2149 e7000_ops.to_detach = e7000_detach;
2150 e7000_ops.to_require_detach = NULL;
2151 e7000_ops.to_resume = e7000_resume;
2152 e7000_ops.to_wait = e7000_wait;
2153 e7000_ops.to_post_wait = NULL;
2154 e7000_ops.to_fetch_registers = e7000_fetch_register;
2155 e7000_ops.to_store_registers = e7000_store_register;
2156 e7000_ops.to_prepare_to_store = e7000_prepare_to_store;
2157 e7000_ops.to_xfer_memory = e7000_xfer_inferior_memory;
2158 e7000_ops.to_files_info = e7000_files_info;
2159 e7000_ops.to_insert_breakpoint = e7000_insert_breakpoint;
2160 e7000_ops.to_remove_breakpoint = e7000_remove_breakpoint;
2161 e7000_ops.to_terminal_init = 0;
2162 e7000_ops.to_terminal_inferior = 0;
2163 e7000_ops.to_terminal_ours_for_output = 0;
2164 e7000_ops.to_terminal_ours = 0;
2165 e7000_ops.to_terminal_info = 0;
2166 e7000_ops.to_kill = e7000_kill;
2167 e7000_ops.to_load = e7000_load;
2168 e7000_ops.to_lookup_symbol = 0;
2169 e7000_ops.to_create_inferior = e7000_create_inferior;
2170 e7000_ops.to_post_startup_inferior = NULL;
2171 e7000_ops.to_acknowledge_created_inferior = NULL;
2172 e7000_ops.to_clone_and_follow_inferior = NULL;
2173 e7000_ops.to_post_follow_inferior_by_clone = NULL;
2174 e7000_ops.to_insert_fork_catchpoint = NULL;
2175 e7000_ops.to_remove_fork_catchpoint = NULL;
2176 e7000_ops.to_insert_vfork_catchpoint = NULL;
2177 e7000_ops.to_remove_vfork_catchpoint = NULL;
2178 e7000_ops.to_has_forked = NULL;
2179 e7000_ops.to_has_vforked = NULL;
2180 e7000_ops.to_can_follow_vfork_prior_to_exec = NULL;
2181 e7000_ops.to_post_follow_vfork = NULL;
2182 e7000_ops.to_insert_exec_catchpoint = NULL;
2183 e7000_ops.to_remove_exec_catchpoint = NULL;
2184 e7000_ops.to_has_execd = NULL;
2185 e7000_ops.to_reported_exec_events_per_exec_call = NULL;
2186 e7000_ops.to_has_exited = NULL;
2187 e7000_ops.to_mourn_inferior = e7000_mourn_inferior;
2188 e7000_ops.to_can_run = 0;
2189 e7000_ops.to_notice_signals = 0;
2190 e7000_ops.to_thread_alive = 0;
2191 e7000_ops.to_stop = e7000_stop;
2192 e7000_ops.to_pid_to_exec_file = NULL;
2193 e7000_ops.to_stratum = process_stratum;
2194 e7000_ops.DONT_USE = 0;
2195 e7000_ops.to_has_all_memory = 1;
2196 e7000_ops.to_has_memory = 1;
2197 e7000_ops.to_has_stack = 1;
2198 e7000_ops.to_has_registers = 1;
2199 e7000_ops.to_has_execution = 1;
2200 e7000_ops.to_sections = 0;
2201 e7000_ops.to_sections_end = 0;
2202 e7000_ops.to_magic = OPS_MAGIC;
2206 _initialize_remote_e7000 (void)
2209 add_target (&e7000_ops);
2211 add_com ("e7000", class_obscure, e7000_command,
2212 "Send a command to the e7000 monitor.");
2214 add_com ("ftplogin", class_obscure, e7000_login_command,
2215 "Login to machine and change to directory.");
2217 add_com ("ftpload", class_obscure, e7000_ftp_command,
2218 "Fetch and load a file from previously described place.");
2220 add_com ("drain", class_obscure, e7000_drain_command,
2221 "Drain pending e7000 text buffers.");
2223 add_show_from_set (add_set_cmd ("usehardbreakpoints", no_class,
2224 var_integer, (char *) &use_hard_breakpoints,
2225 "Set use of hardware breakpoints for all breakpoints.\n", &setlist),