1 /* Remote debugging interface for Renesas E7000 ICE, for GDB
3 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
4 2002, 2003 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 Renesas H8/300-H and
28 Renesas-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 print_stack_frame (get_selected_frame (), -1, 1);
638 e7000_open (char *args
, int from_tty
)
642 target_preopen (from_tty
);
644 n
= e7000_parse_device (args
, dev_name
, baudrate
);
646 push_target (&e7000_ops
);
648 e7000_desc
= serial_open (dev_name
);
651 perror_with_name (dev_name
);
653 if (serial_setbaudrate (e7000_desc
, baudrate
))
655 serial_close (e7000_desc
);
656 perror_with_name (dev_name
);
658 serial_raw (e7000_desc
);
660 #ifdef GDB_TARGET_IS_H8300
664 /* Start the remote connection; if error (0), discard this target.
665 In particular, if the user quits, be sure to discard it
666 (we'd be in an inconsistent state otherwise). */
667 if (!catch_errors (e7000_start_remote
, (char *) 0,
668 "Couldn't establish connection to remote target\n", RETURN_MASK_ALL
))
670 printf_filtered ("Remote target %s connected to %s\n", target_shortname
,
674 /* Close out all files and local state before this target loses control. */
677 e7000_close (int quitting
)
681 serial_close (e7000_desc
);
686 /* Terminate the open connection to the remote debugger. Use this
687 when you want to detach and do something else with your gdb. */
690 e7000_detach (char *arg
, int from_tty
)
692 pop_target (); /* calls e7000_close to do the real work */
694 printf_unfiltered ("Ending remote %s debugging\n", target_shortname
);
697 /* Tell the remote machine to resume. */
700 e7000_resume (ptid_t ptid
, int step
, enum target_signal sigal
)
703 puts_e7000debug ("S\r");
705 puts_e7000debug ("G\r");
708 /* Read the remote registers into the block REGS.
710 For the H8/300 a register dump looks like:
712 PC=00021A CCR=80:I*******
713 ER0 - ER3 0000000A 0000002E 0000002E 00000000
714 ER4 - ER7 00000000 00000000 00000000 00FFEFF6
720 char *want_h8300h
= "PC=%p CCR=%c\n\
721 ER0 - ER3 %0 %1 %2 %3\n\
722 ER4 - ER7 %4 %5 %6 %7\n";
724 char *want_nopc_h8300h
= "%p CCR=%c\n\
725 ER0 - ER3 %0 %1 %2 %3\n\
726 ER4 - ER7 %4 %5 %6 %7";
728 char *want_h8300s
= "PC=%p CCR=%c\n\
730 ER0 - ER3 %0 %1 %2 %3\n\
731 ER4 - ER7 %4 %5 %6 %7\n";
733 char *want_nopc_h8300s
= "%p CCR=%c EXR=%9\n\
734 ER0 - ER3 %0 %1 %2 %3\n\
735 ER4 - ER7 %4 %5 %6 %7";
737 char *want_sh
= "PC=%16 SR=%22\n\
738 PR=%17 GBR=%18 VBR=%19\n\
740 R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\
741 R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n";
743 char *want_nopc_sh
= "%16 SR=%22\n\
744 PR=%17 GBR=%18 VBR=%19\n\
746 R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\
747 R8-15 %8 %9 %10 %11 %12 %13 %14 %15";
749 char *want_sh3
= "PC=%16 SR=%22\n\
750 PR=%17 GBR=%18 VBR=%19\n\
751 MACH=%20 MACL=%21 SSR=%23 SPC=%24\n\
752 R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\
753 R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n\
754 R0_BANK0-R3_BANK0 %25 %26 %27 %28\n\
755 R4_BANK0-R7_BANK0 %29 %30 %31 %32\n\
756 R0_BANK1-R3_BANK1 %33 %34 %35 %36\n\
757 R4_BANK1-R7_BANK1 %37 %38 %39 %40";
759 char *want_nopc_sh3
= "%16 SR=%22\n\
760 PR=%17 GBR=%18 VBR=%19\n\
761 MACH=%20 MACL=%21 SSR=%22 SPC=%23\n\
762 R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\
763 R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n\
764 R0_BANK0-R3_BANK0 %25 %26 %27 %28\n\
765 R4_BANK0-R7_BANK0 %29 %30 %31 %32\n\
766 R0_BANK1-R3_BANK1 %33 %34 %35 %36\n\
767 R4_BANK1-R7_BANK1 %37 %38 %39 %40";
772 return readchar (timeout
);
778 int high
= convert_hex_digit (gch ());
779 int low
= convert_hex_digit (gch ());
781 return (high
<< 4) + low
;
785 fetch_regs_from_dump (int (*nextchar
) (), char *want
)
788 char buf
[MAX_REGISTER_SIZE
];
790 int thischar
= nextchar ();
793 internal_error (__FILE__
, __LINE__
, "Register set not selected.");
800 /* Skip to end of line and then eat all new line type stuff */
801 while (thischar
!= '\n' && thischar
!= '\r')
802 thischar
= nextchar ();
803 while (thischar
== '\n' || thischar
== '\r')
804 thischar
= nextchar ();
809 while (thischar
== ' '
813 thischar
= nextchar ();
818 if (*want
== thischar
)
822 thischar
= nextchar ();
825 else if (thischar
== ' ' || thischar
== '\n' || thischar
== '\r')
827 thischar
= nextchar ();
831 error ("out of sync in fetch registers wanted <%s>, got <%c 0x%x>",
832 want
, thischar
, thischar
);
837 /* Got a register command */
859 #ifdef DEPRECATED_FP_REGNUM
861 regno
= DEPRECATED_FP_REGNUM
;
867 if (isdigit (want
[0]))
869 if (isdigit (want
[1]))
871 regno
= (want
[0] - '0') * 10 + want
[1] - '0';
876 regno
= want
[0] - '0';
882 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
884 store_signed_integer (buf
,
885 DEPRECATED_REGISTER_RAW_SIZE (regno
),
886 (LONGEST
) get_hex (&thischar
));
887 supply_register (regno
, buf
);
894 e7000_fetch_registers (void)
899 puts_e7000debug ("R\r");
901 if (TARGET_ARCHITECTURE
->arch
== bfd_arch_sh
)
904 switch (TARGET_ARCHITECTURE
->mach
)
912 #ifdef GDB_TARGET_IS_H8300
913 if (TARGET_ARCHITECTURE
->arch
== bfd_arch_h8300
)
916 wanted
= want_h8300s
;
918 wanted
= want_h8300h
;
922 fetch_regs_from_dump (gch
, wanted
);
924 /* And supply the extra ones the simulator uses */
925 for (regno
= NUM_REALREGS
; regno
< NUM_REGS
; regno
++)
929 supply_register (regno
, (char *) (&buf
));
933 /* Fetch register REGNO, or all registers if REGNO is -1. Returns
937 e7000_fetch_register (int regno
)
939 e7000_fetch_registers ();
942 /* Store the remote registers from the contents of the block REGS. */
945 e7000_store_registers (void)
949 for (regno
= 0; regno
< NUM_REALREGS
; regno
++)
950 e7000_store_register (regno
);
952 registers_changed ();
955 /* Store register REGNO, or all if REGNO == 0. Return errno value. */
958 e7000_store_register (int regno
)
964 e7000_store_registers ();
968 if (TARGET_ARCHITECTURE
->arch
== bfd_arch_h8300
)
972 sprintf (buf
, ".ER%d %s\r", regno
, phex_nz (read_register (regno
), 0));
973 puts_e7000debug (buf
);
975 else if (regno
== PC_REGNUM
)
977 sprintf (buf
, ".PC %s\r", phex_nz (read_register (regno
), 0));
978 puts_e7000debug (buf
);
981 else if (regno
== CCR_REGNUM
)
983 sprintf (buf
, ".CCR %s\r", phex_nz (read_register (regno
), 0));
984 puts_e7000debug (buf
);
989 else if (TARGET_ARCHITECTURE
->arch
== bfd_arch_sh
)
991 if (regno
== PC_REGNUM
)
993 sprintf (buf
, ".PC %s\r", phex_nz (read_register (regno
), 0));
994 puts_e7000debug (buf
);
997 else if (regno
== SR_REGNUM
)
999 sprintf (buf
, ".SR %s\r", phex_nz (read_register (regno
), 0));
1000 puts_e7000debug (buf
);
1003 else if (regno
== PR_REGNUM
)
1005 sprintf (buf
, ".PR %s\r", phex_nz (read_register (regno
), 0));
1006 puts_e7000debug (buf
);
1009 else if (regno
== GBR_REGNUM
)
1011 sprintf (buf
, ".GBR %s\r", phex_nz (read_register (regno
), 0));
1012 puts_e7000debug (buf
);
1015 else if (regno
== VBR_REGNUM
)
1017 sprintf (buf
, ".VBR %s\r", phex_nz (read_register (regno
), 0));
1018 puts_e7000debug (buf
);
1021 else if (regno
== MACH_REGNUM
)
1023 sprintf (buf
, ".MACH %s\r", phex_nz (read_register (regno
), 0));
1024 puts_e7000debug (buf
);
1027 else if (regno
== MACL_REGNUM
)
1029 sprintf (buf
, ".MACL %s\r", phex_nz (read_register (regno
), 0));
1030 puts_e7000debug (buf
);
1034 sprintf (buf
, ".R%d %s\r", regno
, phex_nz (read_register (regno
), 0));
1035 puts_e7000debug (buf
);
1042 /* Get ready to modify the registers array. On machines which store
1043 individual registers, this doesn't need to do anything. On machines
1044 which store all the registers in one fell swoop, this makes sure
1045 that registers contains all the registers from the program being
1049 e7000_prepare_to_store (void)
1051 /* Do nothing, since we can store individual regs */
1055 e7000_files_info (struct target_ops
*ops
)
1057 printf_unfiltered ("\tAttached to %s at %d baud.\n", dev_name
, baudrate
);
1061 stickbyte (char *where
, unsigned int what
)
1063 static CONST
char digs
[] = "0123456789ABCDEF";
1065 where
[0] = digs
[(what
>> 4) & 0xf];
1066 where
[1] = digs
[(what
& 0xf) & 0xf];
1071 /* Write a small ammount of memory. */
1074 write_small (CORE_ADDR memaddr
, unsigned char *myaddr
, int len
)
1079 for (i
= 0; i
< len
; i
++)
1081 if (((memaddr
+ i
) & 3) == 0 && (i
+ 3 < len
))
1083 /* Can be done with a long word */
1084 sprintf (buf
, "m %s %x%02x%02x%02x;l\r",
1085 paddr_nz (memaddr
+ i
),
1086 myaddr
[i
], myaddr
[i
+ 1], myaddr
[i
+ 2], myaddr
[i
+ 3]);
1087 puts_e7000debug (buf
);
1092 sprintf (buf
, "m %s %x\r", paddr_nz (memaddr
+ i
), myaddr
[i
]);
1093 puts_e7000debug (buf
);
1102 /* Write a large ammount of memory, this only works with the serial
1103 mode enabled. Command is sent as
1118 write_large (CORE_ADDR memaddr
, unsigned char *myaddr
, int len
)
1121 #define maxstride 128
1124 puts_e7000debug ("IL ;S:FK\r");
1126 putchar_e7000 (ACK
);
1129 for (i
= 0; i
< len
; i
+= stride
)
1131 char compose
[maxstride
* 2 + 50];
1132 int address
= i
+ memaddr
;
1139 if (stride
> maxstride
)
1142 compose
[where
++] = 'S';
1144 if (address
>= 0xffffff)
1146 else if (address
>= 0xffff)
1151 compose
[where
++] = alen
- 1 + '0';
1152 /* Insert length. */
1153 check_sum
+= stickbyte (compose
+ where
, alen
+ stride
+ 1);
1158 check_sum
+= stickbyte (compose
+ where
, address
>> (8 * (alen
)));
1162 for (j
= 0; j
< stride
; j
++)
1164 check_sum
+= stickbyte (compose
+ where
, myaddr
[i
+ j
]);
1167 stickbyte (compose
+ where
, ~check_sum
);
1169 compose
[where
++] = '\r';
1170 compose
[where
++] = '\n';
1171 compose
[where
++] = 0;
1173 serial_write (e7000_desc
, compose
, where
);
1177 /* This is ok - nothing there */
1181 /* Hmm, it's trying to tell us something */
1183 error ("Error writing memory");
1187 printf_unfiltered ("@%d}@", j
);
1188 while ((j
= readchar (0)) > 0)
1190 printf_unfiltered ("@{%d}@", j
);
1195 /* Send the trailer record */
1196 write_e7000 ("S70500000000FA\r");
1197 putchar_e7000 (CTRLZ
);
1199 putchar_e7000 (ACK
);
1205 /* Copy LEN bytes of data from debugger memory at MYADDR to inferior's
1206 memory at MEMADDR. Returns length moved.
1208 Can't use the Srecord load over ethernet, so don't use fast method
1212 e7000_write_inferior_memory (CORE_ADDR memaddr
, unsigned char *myaddr
, int len
)
1214 if (len
< 16 || using_tcp
|| using_pc
)
1215 return write_small (memaddr
, myaddr
, len
);
1217 return write_large (memaddr
, myaddr
, len
);
1220 /* Read LEN bytes from inferior memory at MEMADDR. Put the result
1221 at debugger address MYADDR. Returns length moved.
1223 Small transactions we send
1230 e7000_read_inferior_memory (CORE_ADDR memaddr
, unsigned char *myaddr
, int len
)
1236 /* Starting address of this pass. */
1238 /* printf("READ INF %x %x %d\n", memaddr, myaddr, len); */
1239 if (((memaddr
- 1) + len
) < memaddr
)
1245 sprintf (buf
, "m %s;l\r", paddr_nz (memaddr
));
1246 puts_e7000debug (buf
);
1248 for (count
= 0; count
< len
; count
+= 4)
1250 /* Suck away the address */
1256 { /* Some kind of error */
1257 puts_e7000debug (".\r"); /* Some errors leave us in memory input mode */
1258 expect_full_prompt ();
1264 /* Now read in the data */
1265 for (i
= 0; i
< 4; i
++)
1268 if (count
+ i
< len
)
1270 myaddr
[count
+ i
] = b
;
1274 /* Skip the trailing ? and send a . to end and a cr for more */
1277 if (count
+ 4 >= len
)
1278 puts_e7000debug (".\r");
1280 puts_e7000debug ("\r");
1290 For large transfers we used to send
1293 d <addr> <endaddr>\r
1296 <ADDRESS> < D A T A > < ASCII CODE >
1297 00000000 5F FD FD FF DF 7F DF FF 01 00 01 00 02 00 08 04 "_..............."
1298 00000010 FF D7 FF 7F D7 F1 7F FF 00 05 00 00 08 00 40 00 "..............@."
1299 00000020 7F FD FF F7 7F FF FF F7 00 00 00 00 00 00 00 00 "................"
1301 A cost in chars for each transaction of 80 + 5*n-bytes.
1303 Large transactions could be done with the srecord load code, but
1304 there is a pause for a second before dumping starts, which slows the
1309 e7000_read_inferior_memory_large (CORE_ADDR memaddr
, unsigned char *myaddr
,
1316 /* Starting address of this pass. */
1318 if (((memaddr
- 1) + len
) < memaddr
)
1324 sprintf (buf
, "d %s %s\r", paddr_nz (memaddr
), paddr_nz (memaddr
+ len
- 1));
1325 puts_e7000debug (buf
);
1330 /* skip down to the first ">" */
1333 /* now skip to the end of that line */
1340 /* get rid of any white space before the address */
1344 /* Skip the address */
1347 /* read in the bytes on the line */
1348 while (c
!= '"' && count
< len
)
1354 myaddr
[count
++] = get_hex (&c
);
1357 /* throw out the rest of the line */
1362 /* wait for the ":" prompt */
1372 fast_but_for_the_pause_e7000_read_inferior_memory (CORE_ADDR memaddr
,
1373 char *myaddr
, int len
)
1379 if (((memaddr
- 1) + len
) < memaddr
)
1385 sprintf (buf
, "is %x@%x:s\r", memaddr
, len
);
1386 puts_e7000debug (buf
);
1392 error ("Memory read error");
1394 putchar_e7000 (ACK
);
1407 case ENQ
: /* ENQ, at the end */
1411 /* Start of an Srecord */
1416 case '7': /* Termination record, ignore */
1420 /* Header record - ignore it */
1432 alen
= type
- '0' + 1;
1436 addr
= (addr
<< 8) + gbyte ();
1440 for (i
= 0; i
< length
- 1; i
++)
1441 myaddr
[i
+ addr
- memaddr
] = gbyte ();
1443 gbyte (); /* Ignore checksum */
1449 putchar_e7000 (ACK
);
1450 expect ("TOP ADDRESS =");
1451 expect ("END ADDRESS =");
1459 /* Transfer LEN bytes between GDB address MYADDR and target address
1460 MEMADDR. If WRITE is non-zero, transfer them to the target,
1461 otherwise transfer them from the target. TARGET is unused.
1463 Returns the number of bytes transferred. */
1466 e7000_xfer_inferior_memory (CORE_ADDR memaddr
, char *myaddr
, int len
,
1467 int write
, struct mem_attrib
*attrib
,
1468 struct target_ops
*target
)
1471 return e7000_write_inferior_memory (memaddr
, myaddr
, len
);
1473 return e7000_read_inferior_memory (memaddr
, myaddr
, len
);
1475 return e7000_read_inferior_memory_large (memaddr
, myaddr
, len
);
1484 e7000_load (char *args
, int from_tty
)
1486 struct cleanup
*old_chain
;
1490 #define WRITESIZE 0x1000
1491 char buf
[2 + 4 + 4 + WRITESIZE
]; /* `DT' + <addr> + <len> + <data> */
1495 time_t start_time
, end_time
; /* Start and end times of download */
1496 unsigned long data_count
; /* Number of bytes transferred to memory */
1497 int oldtimeout
= timeout
;
1499 timeout
= remote_timeout
;
1502 /* FIXME! change test to test for type of download */
1505 generic_load (args
, from_tty
);
1509 /* for direct tcp connections, we can do a fast binary download */
1516 while (*args
!= '\000')
1520 while (isspace (*args
))
1525 while ((*args
!= '\000') && !isspace (*args
))
1528 if (*args
!= '\000')
1533 else if (strncmp (arg
, "-quiet", strlen (arg
)) == 0)
1535 else if (strncmp (arg
, "-nostart", strlen (arg
)) == 0)
1538 error ("unknown option `%s'", arg
);
1542 filename
= get_exec_file (1);
1544 pbfd
= bfd_openr (filename
, gnutarget
);
1547 perror_with_name (filename
);
1550 old_chain
= make_cleanup_bfd_close (pbfd
);
1552 if (!bfd_check_format (pbfd
, bfd_object
))
1553 error ("\"%s\" is not an object file: %s", filename
,
1554 bfd_errmsg (bfd_get_error ()));
1556 start_time
= time (NULL
);
1559 puts_e7000debug ("mw\r");
1563 for (section
= pbfd
->sections
; section
; section
= section
->next
)
1565 if (bfd_get_section_flags (pbfd
, section
) & SEC_LOAD
)
1567 bfd_vma section_address
;
1568 bfd_size_type section_size
;
1571 section_address
= bfd_get_section_vma (pbfd
, section
);
1572 section_size
= bfd_get_section_size_before_reloc (section
);
1575 printf_filtered ("[Loading section %s at 0x%s (%s bytes)]\n",
1576 bfd_get_section_name (pbfd
, section
),
1577 paddr_nz (section_address
),
1578 paddr_u (section_size
));
1582 data_count
+= section_size
;
1584 while (section_size
> 0)
1587 static char inds
[] = "|/-\\";
1592 count
= min (section_size
, WRITESIZE
);
1594 buf
[2] = section_address
>> 24;
1595 buf
[3] = section_address
>> 16;
1596 buf
[4] = section_address
>> 8;
1597 buf
[5] = section_address
;
1599 buf
[6] = count
>> 24;
1600 buf
[7] = count
>> 16;
1601 buf
[8] = count
>> 8;
1604 bfd_get_section_contents (pbfd
, section
, buf
+ 10, fptr
, count
);
1606 if (serial_write (e7000_desc
, buf
, count
+ 10))
1607 fprintf_unfiltered (gdb_stderr
,
1608 "e7000_load: serial_write failed: %s\n",
1609 safe_strerror (errno
));
1615 printf_unfiltered ("\r%c", inds
[k
++ % 4]);
1616 gdb_flush (gdb_stdout
);
1619 section_address
+= count
;
1621 section_size
-= count
;
1630 end_time
= time (NULL
);
1632 /* Finally, make the PC point at the start address */
1635 write_pc (bfd_get_start_address (exec_bfd
));
1637 inferior_ptid
= null_ptid
; /* No process now */
1639 /* This is necessary because many things were based on the PC at the time that
1640 we attached to the monitor, which is no longer valid now that we have loaded
1641 new code (and just changed the PC). Another way to do this might be to call
1642 normal_stop, except that the stack may not be valid, and things would get
1643 horribly confused... */
1645 clear_symtab_users ();
1649 entry
= bfd_get_start_address (pbfd
);
1652 printf_unfiltered ("[Starting %s at 0x%s]\n", filename
, paddr_nz (entry
));
1654 /* start_routine (entry); */
1657 report_transfer_performance (data_count
, start_time
, end_time
);
1659 do_cleanups (old_chain
);
1660 timeout
= oldtimeout
;
1663 /* Clean up when a program exits.
1665 The program actually lives on in the remote processor's RAM, and may be
1666 run again without a download. Don't leave it full of breakpoint
1670 e7000_mourn_inferior (void)
1672 remove_breakpoints ();
1673 unpush_target (&e7000_ops
);
1674 generic_mourn_inferior (); /* Do all the proper things now */
1677 #define MAX_BREAKPOINTS 200
1678 #ifdef HARD_BREAKPOINTS
1679 #define MAX_E7000DEBUG_BREAKPOINTS (BC_BREAKPOINTS ? 5 : MAX_BREAKPOINTS)
1681 #define MAX_E7000DEBUG_BREAKPOINTS MAX_BREAKPOINTS
1684 /* Since we can change to soft breakpoints dynamically, we must define
1685 more than enough. Was breakaddr[MAX_E7000DEBUG_BREAKPOINTS]. */
1686 static CORE_ADDR breakaddr
[MAX_BREAKPOINTS
] =
1690 e7000_insert_breakpoint (CORE_ADDR addr
, char *shadow
)
1695 static char nop
[2] = NOP
;
1698 for (i
= 0; i
<= MAX_E7000DEBUG_BREAKPOINTS
; i
++)
1699 if (breakaddr
[i
] == 0)
1701 breakaddr
[i
] = addr
;
1702 /* Save old contents, and insert a nop in the space */
1703 #ifdef HARD_BREAKPOINTS
1706 sprintf (buf
, "BC%d A=%s\r", i
+ 1, paddr_nz (addr
));
1707 puts_e7000debug (buf
);
1711 sprintf (buf
, "B %s\r", paddr_nz (addr
));
1712 puts_e7000debug (buf
);
1716 e7000_read_inferior_memory (addr
, shadow
, 2);
1717 e7000_write_inferior_memory (addr
, nop
, 2);
1720 sprintf (buf
, "B %x\r", addr
);
1721 puts_e7000debug (buf
);
1727 error ("Too many breakpoints ( > %d) for the E7000\n",
1728 MAX_E7000DEBUG_BREAKPOINTS
);
1733 e7000_remove_breakpoint (CORE_ADDR addr
, char *shadow
)
1738 for (i
= 0; i
< MAX_E7000DEBUG_BREAKPOINTS
; i
++)
1739 if (breakaddr
[i
] == addr
)
1742 #ifdef HARD_BREAKPOINTS
1745 sprintf (buf
, "BC%d - \r", i
+ 1);
1746 puts_e7000debug (buf
);
1750 sprintf (buf
, "B - %s\r", paddr_nz (addr
));
1751 puts_e7000debug (buf
);
1755 sprintf (buf
, "B - %s\r", paddr_nz (addr
));
1756 puts_e7000debug (buf
);
1760 /* Replace the insn under the break */
1761 e7000_write_inferior_memory (addr
, shadow
, 2);
1768 warning ("Can't find breakpoint associated with 0x%s\n", paddr_nz (addr
));
1772 /* Put a command string, in args, out to STDBUG. Output from STDBUG
1773 is placed on the users terminal until the prompt is seen. */
1776 e7000_command (char *args
, int fromtty
)
1778 /* FIXME: arbitrary limit on length of args. */
1784 error ("e7000 target not open.");
1787 puts_e7000debug ("\r");
1791 sprintf (buf
, "%s\r", args
);
1792 puts_e7000debug (buf
);
1797 expect_full_prompt ();
1800 printf_unfiltered ("\n");
1802 /* Who knows what the command did... */
1803 registers_changed ();
1808 e7000_drain_command (char *args
, int fromtty
)
1812 puts_e7000debug ("end\r");
1813 putchar_e7000 (CTRLC
);
1815 while ((c
= readchar (1)) != -1)
1819 putchar_e7000 (CTRLC
);
1822 if (c
> ' ' && c
< 127)
1823 printf_unfiltered ("%c", c
& 0xff);
1825 printf_unfiltered ("<%x>", c
& 0xff);
1834 static char *strings
[NITEMS
] =
1841 "ILLEGAL INSTRUCTION",
1848 for (i
= 0; i
< NITEMS
; ++i
)
1854 for (i
= 0; i
< NITEMS
; i
++)
1861 /* found one of the choices */
1873 /* Suck characters, if a string match, then return the strings index
1874 otherwise echo them. */
1877 expect_n (char **strings
)
1883 char *buffer
= saveaway
;
1884 /* Count number of expect strings */
1886 for (n
= 0; strings
[n
]; n
++)
1888 ptr
[n
] = strings
[n
];
1899 printf_unfiltered ("[waiting for e7000...]\n");
1912 putchar_e7000 (CTRLC
); /* interrupt the running program */
1916 for (i
= 0; i
< n
; i
++)
1923 /* Gone all the way */
1930 ptr
[i
] = strings
[i
];
1936 /* Save it up incase we find that there was no match */
1941 if (buffer
!= saveaway
)
1944 printf_unfiltered ("%s", buffer
);
1949 putchar_unfiltered (c
);
1950 gdb_flush (gdb_stdout
);
1956 /* We subtract two from the pc here rather than use
1957 DECR_PC_AFTER_BREAK since the e7000 doesn't always add two to the
1958 pc, and the simulators never do. */
1966 store_signed_integer (buf
,
1967 DEPRECATED_REGISTER_RAW_SIZE (PC_REGNUM
),
1968 read_register (PC_REGNUM
) - 2);
1969 supply_register (PC_REGNUM
, buf
);
1970 sprintf (buf2
, ".PC %s\r", phex_nz (read_register (PC_REGNUM
), 0));
1971 puts_e7000debug (buf2
);
1976 #define WAS_RUNNING 2
1979 static char *estrings
[] =
1988 /* Wait until the remote machine stops, then return, storing status in
1989 STATUS just as `wait' would. */
1992 e7000_wait (ptid_t ptid
, struct target_waitstatus
*status
)
1996 int running_count
= 0;
1999 char *wanted_nopc
= NULL
;
2001 /* Then echo chars until PC= string seen */
2002 gch (); /* Drop cr */
2003 gch (); /* and space */
2007 switch (expect_n (estrings
))
2010 /* how did this happen ? */
2015 putchar_e7000 (CTRLC
);
2023 if (running_count
== 20)
2025 printf_unfiltered ("[running...]\n");
2035 /* Skip till the PC= */
2038 if (TARGET_ARCHITECTURE
->arch
== bfd_arch_sh
)
2040 wanted_nopc
= want_nopc_sh
;
2041 switch (TARGET_ARCHITECTURE
->mach
)
2046 wanted_nopc
= want_nopc_sh3
;
2049 #ifdef GDB_TARGET_IS_H8300
2050 if (TARGET_ARCHITECTURE
->arch
== bfd_arch_h8300
)
2053 wanted_nopc
= want_nopc_h8300s
;
2055 wanted_nopc
= want_nopc_h8300h
;
2058 fetch_regs_from_dump (gch
, wanted_nopc
);
2060 /* And supply the extra ones the simulator uses */
2061 for (regno
= NUM_REALREGS
; regno
< NUM_REGS
; regno
++)
2064 supply_register (regno
, (char *) &buf
);
2067 stop_reason
= why_stop ();
2068 expect_full_prompt ();
2070 status
->kind
= TARGET_WAITKIND_STOPPED
;
2071 status
->value
.sig
= TARGET_SIGNAL_TRAP
;
2073 switch (stop_reason
)
2075 case 1: /* Breakpoint */
2076 write_pc (read_pc ()); /* PC is always off by 2 for breakpoints */
2077 status
->value
.sig
= TARGET_SIGNAL_TRAP
;
2079 case 0: /* Single step */
2080 status
->value
.sig
= TARGET_SIGNAL_TRAP
;
2082 case 2: /* Interrupt */
2085 status
->value
.sig
= TARGET_SIGNAL_TRAP
;
2090 status
->value
.sig
= TARGET_SIGNAL_INT
;
2096 printf_unfiltered ("a cycle address error?\n");
2097 status
->value
.sig
= TARGET_SIGNAL_UNKNOWN
;
2100 status
->value
.sig
= TARGET_SIGNAL_ILL
;
2103 status
->value
.sig
= TARGET_SIGNAL_SEGV
;
2105 case 7: /* Anything else (NITEMS + 1) */
2106 printf_unfiltered ("a write protect error?\n");
2107 status
->value
.sig
= TARGET_SIGNAL_UNKNOWN
;
2110 /* Get the user's attention - this should never happen. */
2111 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
2114 return inferior_ptid
;
2117 /* Stop the running program. */
2122 /* Sending a ^C is supposed to stop the running program. */
2123 putchar_e7000 (CTRLC
);
2126 /* Define the target subroutine names. */
2128 struct target_ops e7000_ops
;
2131 init_e7000_ops (void)
2133 e7000_ops
.to_shortname
= "e7000";
2134 e7000_ops
.to_longname
= "Remote Renesas e7000 target";
2135 e7000_ops
.to_doc
= "Use a remote Renesas e7000 ICE connected by a serial line;\n\
2136 or a network connection.\n\
2137 Arguments are the name of the device for the serial line,\n\
2138 the speed to connect at in bits per second.\n\
2140 target e7000 /dev/ttya 9600\n\
2141 target e7000 foobar";
2142 e7000_ops
.to_open
= e7000_open
;
2143 e7000_ops
.to_close
= e7000_close
;
2144 e7000_ops
.to_detach
= e7000_detach
;
2145 e7000_ops
.to_resume
= e7000_resume
;
2146 e7000_ops
.to_wait
= e7000_wait
;
2147 e7000_ops
.to_fetch_registers
= e7000_fetch_register
;
2148 e7000_ops
.to_store_registers
= e7000_store_register
;
2149 e7000_ops
.to_prepare_to_store
= e7000_prepare_to_store
;
2150 e7000_ops
.to_xfer_memory
= e7000_xfer_inferior_memory
;
2151 e7000_ops
.to_files_info
= e7000_files_info
;
2152 e7000_ops
.to_insert_breakpoint
= e7000_insert_breakpoint
;
2153 e7000_ops
.to_remove_breakpoint
= e7000_remove_breakpoint
;
2154 e7000_ops
.to_kill
= e7000_kill
;
2155 e7000_ops
.to_load
= e7000_load
;
2156 e7000_ops
.to_create_inferior
= e7000_create_inferior
;
2157 e7000_ops
.to_mourn_inferior
= e7000_mourn_inferior
;
2158 e7000_ops
.to_stop
= e7000_stop
;
2159 e7000_ops
.to_stratum
= process_stratum
;
2160 e7000_ops
.to_has_all_memory
= 1;
2161 e7000_ops
.to_has_memory
= 1;
2162 e7000_ops
.to_has_stack
= 1;
2163 e7000_ops
.to_has_registers
= 1;
2164 e7000_ops
.to_has_execution
= 1;
2165 e7000_ops
.to_magic
= OPS_MAGIC
;
2168 extern initialize_file_ftype _initialize_remote_e7000
; /* -Wmissing-prototypes */
2171 _initialize_remote_e7000 (void)
2174 add_target (&e7000_ops
);
2176 add_com ("e7000", class_obscure
, e7000_command
,
2177 "Send a command to the e7000 monitor.");
2179 add_com ("ftplogin", class_obscure
, e7000_login_command
,
2180 "Login to machine and change to directory.");
2182 add_com ("ftpload", class_obscure
, e7000_ftp_command
,
2183 "Fetch and load a file from previously described place.");
2185 add_com ("drain", class_obscure
, e7000_drain_command
,
2186 "Drain pending e7000 text buffers.");
2188 add_show_from_set (add_set_cmd ("usehardbreakpoints", no_class
,
2189 var_integer
, (char *) &use_hard_breakpoints
,
2190 "Set use of hardware breakpoints for all breakpoints.\n", &setlist
),