1 /* Remote debugging interface for Renesas E7000 ICE, for GDB
3 Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
4 2002, 2003, 2004 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"
46 #include "exceptions.h"
48 #include <sys/types.h>
50 #include "remote-utils.h"
58 #define HARD_BREAKPOINTS /* Now handled by set option. */
59 #define BC_BREAKPOINTS use_hard_breakpoints
67 /* This file is used by 2 different targets, sh-elf and h8300. The
68 h8300 is not multiarched and doesn't use the registers defined in
69 tm-sh.h. To avoid using a macro GDB_TARGET_IS_SH, we do runtime check
70 of the target, which requires that these namse below are always
71 defined also in the h8300 case. */
73 #if !defined (PR_REGNUM)
76 #if !defined (GBR_REGNUM)
79 #if !defined (VBR_REGNUM)
82 #if !defined (MACH_REGNUM)
83 #define MACH_REGNUM -1
85 #if !defined (MACL_REGNUM)
86 #define MACL_REGNUM -1
88 #if !defined (SR_REGNUM)
92 extern void report_transfer_performance (unsigned long, time_t, time_t);
94 extern char *sh_processor_type;
96 /* Local function declarations. */
98 static void e7000_close (int);
100 static void e7000_fetch_register (int);
102 static void e7000_store_register (int);
104 static void e7000_command (char *, int);
106 static void e7000_login_command (char *, int);
108 static void e7000_ftp_command (char *, int);
110 static void e7000_drain_command (char *, int);
112 static void expect (char *);
114 static void expect_full_prompt (void);
116 static void expect_prompt (void);
118 static int e7000_parse_device (char *args, char *dev_name, int baudrate);
121 static struct serial *e7000_desc;
123 /* Allow user to chose between using hardware breakpoints or memory. */
124 static int use_hard_breakpoints = 0; /* use sw breakpoints by default */
126 /* Nonzero if using the tcp serial driver. */
128 static int using_tcp; /* direct tcp connection to target */
129 static int using_tcp_remote; /* indirect connection to target
130 via tcp to controller */
132 /* Nonzero if using the pc isa card. */
136 extern struct target_ops e7000_ops; /* Forward declaration */
138 char *ENQSTRING = "\005";
140 /* Nonzero if some routine (as opposed to the user) wants echoing.
141 FIXME: Do this reentrantly with an extra parameter. */
147 static int timeout = 20;
149 /* Send data to e7000debug. */
152 puts_e7000debug (char *buf)
155 error (_("Use \"target e7000 ...\" first."));
158 printf_unfiltered ("Sending %s\n", buf);
160 if (serial_write (e7000_desc, buf, strlen (buf)))
161 fprintf_unfiltered (gdb_stderr, "serial_write failed: %s\n", safe_strerror (errno));
163 /* And expect to see it echoed, unless using the pc interface */
171 putchar_e7000 (int x)
176 serial_write (e7000_desc, b, 1);
180 write_e7000 (char *s)
182 serial_write (e7000_desc, s, strlen (s));
193 /* Read a character from the remote system, doing all the fancy timeout
194 stuff. Handles serial errors and EOF. If TIMEOUT == 0, and no chars,
195 returns -1, else returns next char. Discards chars > 127. */
198 readchar (int timeout)
204 c = serial_readchar (e7000_desc, timeout);
208 if (c == SERIAL_TIMEOUT)
213 error (_("Timeout reading from remote system."));
216 error (_("Serial communication error"));
220 putchar_unfiltered (c);
221 gdb_flush (gdb_stdout);
231 static char b[8][10];
243 sprintf (b[p], "<%d>", x);
250 /* Scan input from the remote system, until STRING is found. If
251 DISCARD is non-zero, then discard non-matching input, else print it
252 out. Let the user break out immediately. */
255 expect (char *string)
263 c = readchar (timeout);
267 if (c == '\r' || c == '\n')
270 putchar_unfiltered ('\n');
276 putchar_unfiltered (c);
278 gdb_flush (gdb_stdout);
280 if (normal (c) == normal (*p++))
289 if (normal (c) == normal (string[0]))
295 /* Keep discarding input until we see the e7000 prompt.
297 The convention for dealing with the prompt is that you
299 o *then* wait for the prompt.
301 Thus the last thing that a procedure does with the serial line will
302 be an expect_prompt(). Exception: e7000_resume does not wait for
303 the prompt, because the terminal is being handed over to the
304 inferior. However, the next thing which happens after that is a
305 e7000_wait which does wait for the prompt. Note that this includes
306 abnormal exit, e.g. error(). This is necessary to prevent getting
307 into states from which we can't recover. */
316 expect_full_prompt (void)
322 convert_hex_digit (int ch)
324 if (ch >= '0' && ch <= '9')
326 else if (ch >= 'A' && ch <= 'F')
327 return ch - 'A' + 10;
328 else if (ch >= 'a' && ch <= 'f')
329 return ch - 'a' + 10;
336 int value = convert_hex_digit (*start);
339 *start = readchar (timeout);
340 while ((try = convert_hex_digit (*start)) >= 0)
344 *start = readchar (timeout);
350 /* Get N 32-bit words from remote, each preceded by a space, and put
351 them in registers starting at REGNO. */
354 get_hex_regs (int n, int regno)
359 for (i = 0; i < n; i++)
364 for (j = 0; j < 8; j++)
365 val = (val << 4) + get_hex_digit (j == 0);
366 regcache_raw_supply (current_regcache, regno++, (char *) &val);
371 /* This is called not only when we first attach, but also when the
372 user types "run" after having attached. */
375 e7000_create_inferior (char *execfile, char *args, char **env,
381 error (_("Can't pass arguments to remote E7000DEBUG process"));
383 if (execfile == 0 || exec_bfd == 0)
384 error (_("No executable file specified"));
386 entry_pt = (int) bfd_get_start_address (exec_bfd);
388 #ifdef CREATE_INFERIOR_HOOK
389 CREATE_INFERIOR_HOOK (0); /* No process-ID */
392 /* The "process" (board) is already stopped awaiting our commands, and
393 the program is already downloaded. We just set its PC and go. */
395 clear_proceed_status ();
397 /* Tell wait_for_inferior that we've started a new process. */
398 init_wait_for_inferior ();
400 /* Set up the "saved terminal modes" of the inferior
401 based on what modes we are starting it with. */
402 target_terminal_init ();
404 /* Install inferior's terminal modes. */
405 target_terminal_inferior ();
407 /* insert_step_breakpoint (); FIXME, do we need this? */
408 proceed ((CORE_ADDR) entry_pt, -1, 0); /* Let 'er rip... */
411 /* Open a connection to a remote debugger. NAME is the filename used
412 for communication. */
414 static int baudrate = 9600;
415 static char dev_name[100];
417 static char *machine = "";
418 static char *user = "";
419 static char *passwd = "";
420 static char *dir = "";
422 /* Grab the next token and buy some space for it */
432 while (*p && *p == ' ')
435 while (*p && (*p != ' ' && *p != '\t'))
448 e7000_login_command (char *args, int from_tty)
452 machine = next (&args);
454 passwd = next (&args);
458 printf_unfiltered ("Set info to %s %s %s %s\n", machine, user, passwd, dir);
463 error (_("Syntax is ftplogin <machine> <user> <passwd> <directory>"));
467 /* Start an ftp transfer from the E7000 to a host */
470 e7000_ftp_command (char *args, int from_tty)
472 /* FIXME: arbitrary limit on machine names and such. */
475 int oldtimeout = timeout;
476 timeout = remote_timeout;
478 sprintf (buf, "ftp %s\r", machine);
479 puts_e7000debug (buf);
480 expect (" Username : ");
481 sprintf (buf, "%s\r", user);
482 puts_e7000debug (buf);
483 expect (" Password : ");
484 write_e7000 (passwd);
486 expect ("success\r");
488 sprintf (buf, "cd %s\r", dir);
489 puts_e7000debug (buf);
491 sprintf (buf, "ll 0;s:%s\r", args);
492 puts_e7000debug (buf);
494 puts_e7000debug ("bye\r");
496 timeout = oldtimeout;
500 e7000_parse_device (char *args, char *dev_name, int baudrate)
504 if (args && strcasecmp (args, "pc") == 0)
506 strcpy (dev_name, args);
511 /* FIXME! temp hack to allow use with port master -
512 target tcp_remote <device> */
513 if (args && strncmp (args, "tcp", 10) == 0)
516 n = sscanf (args, " %s %s %d %s", com_type, dev_name, &baudrate, junk);
517 using_tcp_remote = 1;
522 n = sscanf (args, " %s %d %s", dev_name, &baudrate, junk);
525 if (n != 1 && n != 2)
527 error (_("Bad arguments. Usage:\ttarget e7000 <device> <speed>\n\
528 or \t\ttarget e7000 <host>[:<port>]\n\
529 or \t\ttarget e7000 tcp_remote <host>[:<port>]\n\
530 or \t\ttarget e7000 pc\n"));
533 #if !defined(__GO32__) && !defined(_WIN32) && !defined(__CYGWIN__)
534 /* FIXME! test for ':' is ambiguous */
535 if (n == 1 && strchr (dev_name, ':') == 0)
537 /* Default to normal telnet port */
538 /* serial_open will use this to determine tcp communication */
539 strcat (dev_name, ":23");
542 if (!using_tcp_remote && strchr (dev_name, ':'))
549 /* Stub for catch_errors. */
552 e7000_start_remote (void *dummy)
559 immediate_quit++; /* Allow user to interrupt it */
561 /* Hello? Are you there? */
566 putchar_e7000 (CTRLC);
567 while (!sync && ++try <= quit_trying)
571 printf_unfiltered ("[waiting for e7000...]\n");
576 /* FIXME! this didn't seem right-> while (c != SERIAL_TIMEOUT)
577 * we get stuck in this loop ...
578 * We may never timeout, and never sync up :-(
580 while (!sync && c != -1)
585 putchar_unfiltered (c);
586 gdb_flush (gdb_stdout);
588 /* Shouldn't we either break here, or check for sync in inner loop? */
594 putchar_e7000 (CTRLC);
602 putchar_e7000 (CTRLC);
603 /* Was-> quit_flag = 0; */
605 quit_trying = try + 1; /* we don't want to try anymore */
616 fprintf_unfiltered (gdb_stderr, "Giving up after %d tries...\n", try);
617 error (_("Unable to synchronize with target."));
620 puts_e7000debug ("\r");
622 puts_e7000debug ("b -\r"); /* Clear breakpoints */
627 /* This is really the job of start_remote however, that makes an assumption
628 that the target is about to print out a status message of some sort. That
629 doesn't happen here. */
631 flush_cached_frames ();
632 registers_changed ();
633 stop_pc = read_pc ();
634 print_stack_frame (get_selected_frame (NULL), 0, SRC_AND_LOC);
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 /* Start the remote connection; if error (0), discard this target.
663 In particular, if the user quits, be sure to discard it
664 (we'd be in an inconsistent state otherwise). */
665 if (!catch_errors (e7000_start_remote, (char *) 0,
666 "Couldn't establish connection to remote target\n", RETURN_MASK_ALL))
668 printf_filtered ("Remote target %s connected to %s\n", target_shortname,
672 /* Close out all files and local state before this target loses control. */
675 e7000_close (int quitting)
679 serial_close (e7000_desc);
684 /* Terminate the open connection to the remote debugger. Use this
685 when you want to detach and do something else with your gdb. */
688 e7000_detach (char *arg, int from_tty)
690 pop_target (); /* calls e7000_close to do the real work */
692 printf_unfiltered ("Ending remote %s debugging\n", target_shortname);
695 /* Tell the remote machine to resume. */
698 e7000_resume (ptid_t ptid, int step, enum target_signal sigal)
701 puts_e7000debug ("S\r");
703 puts_e7000debug ("G\r");
706 /* Read the remote registers into the block REGS.
708 For the H8/300 a register dump looks like:
710 PC=00021A CCR=80:I*******
711 ER0 - ER3 0000000A 0000002E 0000002E 00000000
712 ER4 - ER7 00000000 00000000 00000000 00FFEFF6
718 char *want_h8300h = "PC=%p CCR=%c\n\
719 ER0 - ER3 %0 %1 %2 %3\n\
720 ER4 - ER7 %4 %5 %6 %7\n";
722 char *want_nopc_h8300h = "%p CCR=%c\n\
723 ER0 - ER3 %0 %1 %2 %3\n\
724 ER4 - ER7 %4 %5 %6 %7";
726 char *want_h8300s = "PC=%p CCR=%c\n\
728 ER0 - ER3 %0 %1 %2 %3\n\
729 ER4 - ER7 %4 %5 %6 %7\n";
731 char *want_nopc_h8300s = "%p CCR=%c EXR=%9\n\
732 ER0 - ER3 %0 %1 %2 %3\n\
733 ER4 - ER7 %4 %5 %6 %7";
735 char *want_sh = "PC=%16 SR=%22\n\
736 PR=%17 GBR=%18 VBR=%19\n\
738 R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\
739 R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n";
741 char *want_nopc_sh = "%16 SR=%22\n\
742 PR=%17 GBR=%18 VBR=%19\n\
744 R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\
745 R8-15 %8 %9 %10 %11 %12 %13 %14 %15";
747 char *want_sh3 = "PC=%16 SR=%22\n\
748 PR=%17 GBR=%18 VBR=%19\n\
749 MACH=%20 MACL=%21 SSR=%23 SPC=%24\n\
750 R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\
751 R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n\
752 R0_BANK0-R3_BANK0 %25 %26 %27 %28\n\
753 R4_BANK0-R7_BANK0 %29 %30 %31 %32\n\
754 R0_BANK1-R3_BANK1 %33 %34 %35 %36\n\
755 R4_BANK1-R7_BANK1 %37 %38 %39 %40";
757 char *want_nopc_sh3 = "%16 SR=%22\n\
758 PR=%17 GBR=%18 VBR=%19\n\
759 MACH=%20 MACL=%21 SSR=%22 SPC=%23\n\
760 R0-7 %0 %1 %2 %3 %4 %5 %6 %7\n\
761 R8-15 %8 %9 %10 %11 %12 %13 %14 %15\n\
762 R0_BANK0-R3_BANK0 %25 %26 %27 %28\n\
763 R4_BANK0-R7_BANK0 %29 %30 %31 %32\n\
764 R0_BANK1-R3_BANK1 %33 %34 %35 %36\n\
765 R4_BANK1-R7_BANK1 %37 %38 %39 %40";
770 return readchar (timeout);
776 int high = convert_hex_digit (gch ());
777 int low = convert_hex_digit (gch ());
779 return (high << 4) + low;
783 fetch_regs_from_dump (int (*nextchar) (), char *want)
786 char buf[MAX_REGISTER_SIZE];
788 int thischar = nextchar ();
791 internal_error (__FILE__, __LINE__, _("Register set not selected."));
798 /* Skip to end of line and then eat all new line type stuff */
799 while (thischar != '\n' && thischar != '\r')
800 thischar = nextchar ();
801 while (thischar == '\n' || thischar == '\r')
802 thischar = nextchar ();
807 while (thischar == ' '
811 thischar = nextchar ();
816 if (*want == thischar)
820 thischar = nextchar ();
823 else if (thischar == ' ' || thischar == '\n' || thischar == '\r')
825 thischar = nextchar ();
829 error (_("out of sync in fetch registers wanted <%s>, got <%c 0x%x>"),
830 want, thischar, thischar);
835 /* Got a register command */
857 #ifdef DEPRECATED_FP_REGNUM
859 regno = DEPRECATED_FP_REGNUM;
865 if (isdigit (want[0]))
867 if (isdigit (want[1]))
869 regno = (want[0] - '0') * 10 + want[1] - '0';
874 regno = want[0] - '0';
880 internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
882 store_signed_integer (buf,
883 register_size (current_gdbarch, regno),
884 (LONGEST) get_hex (&thischar));
885 regcache_raw_supply (current_regcache, regno, buf);
892 e7000_fetch_registers (void)
897 puts_e7000debug ("R\r");
899 if (TARGET_ARCHITECTURE->arch == bfd_arch_sh)
902 switch (TARGET_ARCHITECTURE->mach)
910 if (TARGET_ARCHITECTURE->arch == bfd_arch_h8300)
912 wanted = want_h8300h;
913 switch (TARGET_ARCHITECTURE->mach)
915 case bfd_mach_h8300s:
916 case bfd_mach_h8300sn:
917 case bfd_mach_h8300sx:
918 case bfd_mach_h8300sxn:
919 wanted = want_h8300s;
923 fetch_regs_from_dump (gch, wanted);
925 /* And supply the extra ones the simulator uses */
926 for (regno = NUM_REALREGS; regno < NUM_REGS; regno++)
930 regcache_raw_supply (current_regcache, regno, (char *) (&buf));
934 /* Fetch register REGNO, or all registers if REGNO is -1. Returns
938 e7000_fetch_register (int regno)
940 e7000_fetch_registers ();
943 /* Store the remote registers from the contents of the block REGS. */
946 e7000_store_registers (void)
950 for (regno = 0; regno < NUM_REALREGS; regno++)
951 e7000_store_register (regno);
953 registers_changed ();
956 /* Store register REGNO, or all if REGNO == 0. Return errno value. */
959 e7000_store_register (int regno)
965 e7000_store_registers ();
969 if (TARGET_ARCHITECTURE->arch == bfd_arch_h8300)
973 sprintf (buf, ".ER%d %s\r", regno, phex_nz (read_register (regno), 0));
974 puts_e7000debug (buf);
976 else if (regno == PC_REGNUM)
978 sprintf (buf, ".PC %s\r", phex_nz (read_register (regno), 0));
979 puts_e7000debug (buf);
982 else if (regno == CCR_REGNUM)
984 sprintf (buf, ".CCR %s\r", phex_nz (read_register (regno), 0));
985 puts_e7000debug (buf);
990 else if (TARGET_ARCHITECTURE->arch == bfd_arch_sh)
992 if (regno == PC_REGNUM)
994 sprintf (buf, ".PC %s\r", phex_nz (read_register (regno), 0));
995 puts_e7000debug (buf);
998 else if (regno == SR_REGNUM)
1000 sprintf (buf, ".SR %s\r", phex_nz (read_register (regno), 0));
1001 puts_e7000debug (buf);
1004 else if (regno == PR_REGNUM)
1006 sprintf (buf, ".PR %s\r", phex_nz (read_register (regno), 0));
1007 puts_e7000debug (buf);
1010 else if (regno == GBR_REGNUM)
1012 sprintf (buf, ".GBR %s\r", phex_nz (read_register (regno), 0));
1013 puts_e7000debug (buf);
1016 else if (regno == VBR_REGNUM)
1018 sprintf (buf, ".VBR %s\r", phex_nz (read_register (regno), 0));
1019 puts_e7000debug (buf);
1022 else if (regno == MACH_REGNUM)
1024 sprintf (buf, ".MACH %s\r", phex_nz (read_register (regno), 0));
1025 puts_e7000debug (buf);
1028 else if (regno == MACL_REGNUM)
1030 sprintf (buf, ".MACL %s\r", phex_nz (read_register (regno), 0));
1031 puts_e7000debug (buf);
1035 sprintf (buf, ".R%d %s\r", regno, phex_nz (read_register (regno), 0));
1036 puts_e7000debug (buf);
1043 /* Get ready to modify the registers array. On machines which store
1044 individual registers, this doesn't need to do anything. On machines
1045 which store all the registers in one fell swoop, this makes sure
1046 that registers contains all the registers from the program being
1050 e7000_prepare_to_store (void)
1052 /* Do nothing, since we can store individual regs */
1056 e7000_files_info (struct target_ops *ops)
1058 printf_unfiltered ("\tAttached to %s at %d baud.\n", dev_name, baudrate);
1062 stickbyte (char *where, unsigned int what)
1064 static CONST char digs[] = "0123456789ABCDEF";
1066 where[0] = digs[(what >> 4) & 0xf];
1067 where[1] = digs[(what & 0xf) & 0xf];
1072 /* Write a small ammount of memory. */
1075 write_small (CORE_ADDR memaddr, unsigned char *myaddr, int len)
1080 for (i = 0; i < len; i++)
1082 if (((memaddr + i) & 3) == 0 && (i + 3 < len))
1084 /* Can be done with a long word */
1085 sprintf (buf, "m %s %x%02x%02x%02x;l\r",
1086 paddr_nz (memaddr + i),
1087 myaddr[i], myaddr[i + 1], myaddr[i + 2], myaddr[i + 3]);
1088 puts_e7000debug (buf);
1093 sprintf (buf, "m %s %x\r", paddr_nz (memaddr + i), myaddr[i]);
1094 puts_e7000debug (buf);
1103 /* Write a large ammount of memory, this only works with the serial
1104 mode enabled. Command is sent as
1119 write_large (CORE_ADDR memaddr, unsigned char *myaddr, int len)
1122 #define maxstride 128
1125 puts_e7000debug ("IL ;S:FK\r");
1127 putchar_e7000 (ACK);
1130 for (i = 0; i < len; i += stride)
1132 char compose[maxstride * 2 + 50];
1133 int address = i + memaddr;
1140 if (stride > maxstride)
1143 compose[where++] = 'S';
1145 if (address >= 0xffffff)
1147 else if (address >= 0xffff)
1152 compose[where++] = alen - 1 + '0';
1153 /* Insert length. */
1154 check_sum += stickbyte (compose + where, alen + stride + 1);
1159 check_sum += stickbyte (compose + where, address >> (8 * (alen)));
1163 for (j = 0; j < stride; j++)
1165 check_sum += stickbyte (compose + where, myaddr[i + j]);
1168 stickbyte (compose + where, ~check_sum);
1170 compose[where++] = '\r';
1171 compose[where++] = '\n';
1172 compose[where++] = 0;
1174 serial_write (e7000_desc, compose, where);
1178 /* This is ok - nothing there */
1182 /* Hmm, it's trying to tell us something */
1184 error (_("Error writing memory"));
1188 printf_unfiltered ("@%d}@", j);
1189 while ((j = readchar (0)) > 0)
1191 printf_unfiltered ("@{%d}@", j);
1196 /* Send the trailer record */
1197 write_e7000 ("S70500000000FA\r");
1198 putchar_e7000 (CTRLZ);
1200 putchar_e7000 (ACK);
1206 /* Copy LEN bytes of data from debugger memory at MYADDR to inferior's
1207 memory at MEMADDR. Returns length moved.
1209 Can't use the Srecord load over ethernet, so don't use fast method
1213 e7000_write_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len)
1215 if (len < 16 || using_tcp || using_pc)
1216 return write_small (memaddr, myaddr, len);
1218 return write_large (memaddr, myaddr, len);
1221 /* Read LEN bytes from inferior memory at MEMADDR. Put the result
1222 at debugger address MYADDR. Returns length moved.
1224 Small transactions we send
1231 e7000_read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len)
1237 /* Starting address of this pass. */
1239 /* printf("READ INF %x %x %d\n", memaddr, myaddr, len); */
1240 if (((memaddr - 1) + len) < memaddr)
1246 sprintf (buf, "m %s;l\r", paddr_nz (memaddr));
1247 puts_e7000debug (buf);
1249 for (count = 0; count < len; count += 4)
1251 /* Suck away the address */
1257 { /* Some kind of error */
1258 puts_e7000debug (".\r"); /* Some errors leave us in memory input mode */
1259 expect_full_prompt ();
1265 /* Now read in the data */
1266 for (i = 0; i < 4; i++)
1269 if (count + i < len)
1271 myaddr[count + i] = b;
1275 /* Skip the trailing ? and send a . to end and a cr for more */
1278 if (count + 4 >= len)
1279 puts_e7000debug (".\r");
1281 puts_e7000debug ("\r");
1291 For large transfers we used to send
1294 d <addr> <endaddr>\r
1297 <ADDRESS> < D A T A > < ASCII CODE >
1298 00000000 5F FD FD FF DF 7F DF FF 01 00 01 00 02 00 08 04 "_..............."
1299 00000010 FF D7 FF 7F D7 F1 7F FF 00 05 00 00 08 00 40 00 "..............@."
1300 00000020 7F FD FF F7 7F FF FF F7 00 00 00 00 00 00 00 00 "................"
1302 A cost in chars for each transaction of 80 + 5*n-bytes.
1304 Large transactions could be done with the srecord load code, but
1305 there is a pause for a second before dumping starts, which slows the
1310 e7000_read_inferior_memory_large (CORE_ADDR memaddr, unsigned char *myaddr,
1317 /* Starting address of this pass. */
1319 if (((memaddr - 1) + len) < memaddr)
1325 sprintf (buf, "d %s %s\r", paddr_nz (memaddr), paddr_nz (memaddr + len - 1));
1326 puts_e7000debug (buf);
1331 /* skip down to the first ">" */
1334 /* now skip to the end of that line */
1341 /* get rid of any white space before the address */
1345 /* Skip the address */
1348 /* read in the bytes on the line */
1349 while (c != '"' && count < len)
1355 myaddr[count++] = get_hex (&c);
1358 /* throw out the rest of the line */
1363 /* wait for the ":" prompt */
1373 fast_but_for_the_pause_e7000_read_inferior_memory (CORE_ADDR memaddr,
1374 char *myaddr, int len)
1380 if (((memaddr - 1) + len) < memaddr)
1386 sprintf (buf, "is %x@%x:s\r", memaddr, len);
1387 puts_e7000debug (buf);
1393 error (_("Memory read error"));
1395 putchar_e7000 (ACK);
1408 case ENQ: /* ENQ, at the end */
1412 /* Start of an Srecord */
1417 case '7': /* Termination record, ignore */
1421 /* Header record - ignore it */
1433 alen = type - '0' + 1;
1437 addr = (addr << 8) + gbyte ();
1441 for (i = 0; i < length - 1; i++)
1442 myaddr[i + addr - memaddr] = gbyte ();
1444 gbyte (); /* Ignore checksum */
1450 putchar_e7000 (ACK);
1451 expect ("TOP ADDRESS =");
1452 expect ("END ADDRESS =");
1460 /* Transfer LEN bytes between GDB address MYADDR and target address
1461 MEMADDR. If WRITE is non-zero, transfer them to the target,
1462 otherwise transfer them from the target. TARGET is unused.
1464 Returns the number of bytes transferred. */
1467 e7000_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len,
1468 int write, struct mem_attrib *attrib,
1469 struct target_ops *target)
1472 return e7000_write_inferior_memory (memaddr, myaddr, len);
1474 return e7000_read_inferior_memory (memaddr, myaddr, len);
1476 return e7000_read_inferior_memory_large (memaddr, myaddr, len);
1485 e7000_load (char *args, int from_tty)
1487 struct cleanup *old_chain;
1491 #define WRITESIZE 0x1000
1492 char buf[2 + 4 + 4 + WRITESIZE]; /* `DT' + <addr> + <len> + <data> */
1496 time_t start_time, end_time; /* Start and end times of download */
1497 unsigned long data_count; /* Number of bytes transferred to memory */
1498 int oldtimeout = timeout;
1500 timeout = remote_timeout;
1503 /* FIXME! change test to test for type of download */
1506 generic_load (args, from_tty);
1510 /* for direct tcp connections, we can do a fast binary download */
1517 while (*args != '\000')
1521 while (isspace (*args))
1526 while ((*args != '\000') && !isspace (*args))
1529 if (*args != '\000')
1534 else if (strncmp (arg, "-quiet", strlen (arg)) == 0)
1536 else if (strncmp (arg, "-nostart", strlen (arg)) == 0)
1539 error (_("unknown option `%s'"), arg);
1543 filename = get_exec_file (1);
1545 pbfd = bfd_openr (filename, gnutarget);
1548 perror_with_name (filename);
1551 old_chain = make_cleanup_bfd_close (pbfd);
1553 if (!bfd_check_format (pbfd, bfd_object))
1554 error (_("\"%s\" is not an object file: %s"), filename,
1555 bfd_errmsg (bfd_get_error ()));
1557 start_time = time (NULL);
1560 puts_e7000debug ("mw\r");
1564 for (section = pbfd->sections; section; section = section->next)
1566 if (bfd_get_section_flags (pbfd, section) & SEC_LOAD)
1568 bfd_vma section_address;
1569 bfd_size_type section_size;
1572 section_address = bfd_get_section_vma (pbfd, section);
1573 section_size = bfd_get_section_size (section);
1576 printf_filtered ("[Loading section %s at 0x%s (%s bytes)]\n",
1577 bfd_get_section_name (pbfd, section),
1578 paddr_nz (section_address),
1579 paddr_u (section_size));
1583 data_count += section_size;
1585 while (section_size > 0)
1588 static char inds[] = "|/-\\";
1593 count = min (section_size, WRITESIZE);
1595 buf[2] = section_address >> 24;
1596 buf[3] = section_address >> 16;
1597 buf[4] = section_address >> 8;
1598 buf[5] = section_address;
1600 buf[6] = count >> 24;
1601 buf[7] = count >> 16;
1602 buf[8] = count >> 8;
1605 bfd_get_section_contents (pbfd, section, buf + 10, fptr, count);
1607 if (serial_write (e7000_desc, buf, count + 10))
1608 fprintf_unfiltered (gdb_stderr,
1609 "e7000_load: serial_write failed: %s\n",
1610 safe_strerror (errno));
1616 printf_unfiltered ("\r%c", inds[k++ % 4]);
1617 gdb_flush (gdb_stdout);
1620 section_address += count;
1622 section_size -= count;
1631 end_time = time (NULL);
1633 /* Finally, make the PC point at the start address */
1636 write_pc (bfd_get_start_address (exec_bfd));
1638 inferior_ptid = null_ptid; /* No process now */
1640 /* This is necessary because many things were based on the PC at the time that
1641 we attached to the monitor, which is no longer valid now that we have loaded
1642 new code (and just changed the PC). Another way to do this might be to call
1643 normal_stop, except that the stack may not be valid, and things would get
1644 horribly confused... */
1646 clear_symtab_users ();
1650 entry = bfd_get_start_address (pbfd);
1653 printf_unfiltered ("[Starting %s at 0x%s]\n", filename, paddr_nz (entry));
1655 /* start_routine (entry); */
1658 report_transfer_performance (data_count, start_time, end_time);
1660 do_cleanups (old_chain);
1661 timeout = oldtimeout;
1664 /* Clean up when a program exits.
1666 The program actually lives on in the remote processor's RAM, and may be
1667 run again without a download. Don't leave it full of breakpoint
1671 e7000_mourn_inferior (void)
1673 remove_breakpoints ();
1674 unpush_target (&e7000_ops);
1675 generic_mourn_inferior (); /* Do all the proper things now */
1678 #define MAX_BREAKPOINTS 200
1679 #ifdef HARD_BREAKPOINTS
1680 #define MAX_E7000DEBUG_BREAKPOINTS (BC_BREAKPOINTS ? 5 : MAX_BREAKPOINTS)
1682 #define MAX_E7000DEBUG_BREAKPOINTS MAX_BREAKPOINTS
1685 /* Since we can change to soft breakpoints dynamically, we must define
1686 more than enough. Was breakaddr[MAX_E7000DEBUG_BREAKPOINTS]. */
1687 static CORE_ADDR breakaddr[MAX_BREAKPOINTS] =
1691 e7000_insert_breakpoint (CORE_ADDR addr, char *shadow)
1696 static char nop[2] = NOP;
1699 for (i = 0; i <= MAX_E7000DEBUG_BREAKPOINTS; i++)
1700 if (breakaddr[i] == 0)
1702 breakaddr[i] = addr;
1703 /* Save old contents, and insert a nop in the space */
1704 #ifdef HARD_BREAKPOINTS
1707 sprintf (buf, "BC%d A=%s\r", i + 1, paddr_nz (addr));
1708 puts_e7000debug (buf);
1712 sprintf (buf, "B %s\r", paddr_nz (addr));
1713 puts_e7000debug (buf);
1717 e7000_read_inferior_memory (addr, shadow, 2);
1718 e7000_write_inferior_memory (addr, nop, 2);
1721 sprintf (buf, "B %x\r", addr);
1722 puts_e7000debug (buf);
1728 error (_("Too many breakpoints ( > %d) for the E7000."),
1729 MAX_E7000DEBUG_BREAKPOINTS);
1734 e7000_remove_breakpoint (CORE_ADDR addr, char *shadow)
1739 for (i = 0; i < MAX_E7000DEBUG_BREAKPOINTS; i++)
1740 if (breakaddr[i] == addr)
1743 #ifdef HARD_BREAKPOINTS
1746 sprintf (buf, "BC%d - \r", i + 1);
1747 puts_e7000debug (buf);
1751 sprintf (buf, "B - %s\r", paddr_nz (addr));
1752 puts_e7000debug (buf);
1756 sprintf (buf, "B - %s\r", paddr_nz (addr));
1757 puts_e7000debug (buf);
1761 /* Replace the insn under the break */
1762 e7000_write_inferior_memory (addr, shadow, 2);
1769 warning (_("Can't find breakpoint associated with 0x%s."), paddr_nz (addr));
1773 /* Put a command string, in args, out to STDBUG. Output from STDBUG
1774 is placed on the users terminal until the prompt is seen. */
1777 e7000_command (char *args, int fromtty)
1779 /* FIXME: arbitrary limit on length of args. */
1785 error (_("e7000 target not open."));
1788 puts_e7000debug ("\r");
1792 sprintf (buf, "%s\r", args);
1793 puts_e7000debug (buf);
1798 expect_full_prompt ();
1801 printf_unfiltered ("\n");
1803 /* Who knows what the command did... */
1804 registers_changed ();
1809 e7000_drain_command (char *args, int fromtty)
1813 puts_e7000debug ("end\r");
1814 putchar_e7000 (CTRLC);
1816 while ((c = readchar (1)) != -1)
1820 putchar_e7000 (CTRLC);
1823 if (c > ' ' && c < 127)
1824 printf_unfiltered ("%c", c & 0xff);
1826 printf_unfiltered ("<%x>", c & 0xff);
1835 static char *strings[NITEMS] =
1842 "ILLEGAL INSTRUCTION",
1849 for (i = 0; i < NITEMS; ++i)
1855 for (i = 0; i < NITEMS; i++)
1862 /* found one of the choices */
1874 /* Suck characters, if a string match, then return the strings index
1875 otherwise echo them. */
1878 expect_n (char **strings)
1884 char *buffer = saveaway;
1885 /* Count number of expect strings */
1887 for (n = 0; strings[n]; n++)
1889 ptr[n] = strings[n];
1900 printf_unfiltered ("[waiting for e7000...]\n");
1913 putchar_e7000 (CTRLC); /* interrupt the running program */
1917 for (i = 0; i < n; i++)
1924 /* Gone all the way */
1931 ptr[i] = strings[i];
1937 /* Save it up incase we find that there was no match */
1942 if (buffer != saveaway)
1945 printf_unfiltered ("%s", buffer);
1950 putchar_unfiltered (c);
1951 gdb_flush (gdb_stdout);
1957 /* We subtract two from the pc here rather than use
1958 DECR_PC_AFTER_BREAK since the e7000 doesn't always add two to the
1959 pc, and the simulators never do. */
1967 store_signed_integer (buf,
1968 register_size (current_gdbarch, PC_REGNUM),
1969 read_register (PC_REGNUM) - 2);
1970 regcache_raw_supply (current_regcache, PC_REGNUM, buf);
1971 sprintf (buf2, ".PC %s\r", phex_nz (read_register (PC_REGNUM), 0));
1972 puts_e7000debug (buf2);
1977 #define WAS_RUNNING 2
1980 static char *estrings[] =
1989 /* Wait until the remote machine stops, then return, storing status in
1990 STATUS just as `wait' would. */
1993 e7000_wait (ptid_t ptid, struct target_waitstatus *status)
1997 int running_count = 0;
2000 char *wanted_nopc = NULL;
2002 /* Then echo chars until PC= string seen */
2003 gch (); /* Drop cr */
2004 gch (); /* and space */
2008 switch (expect_n (estrings))
2011 /* how did this happen ? */
2016 putchar_e7000 (CTRLC);
2024 if (running_count == 20)
2026 printf_unfiltered ("[running...]\n");
2036 /* Skip till the PC= */
2039 if (TARGET_ARCHITECTURE->arch == bfd_arch_sh)
2041 wanted_nopc = want_nopc_sh;
2042 switch (TARGET_ARCHITECTURE->mach)
2047 wanted_nopc = want_nopc_sh3;
2050 if (TARGET_ARCHITECTURE->arch == bfd_arch_h8300)
2052 wanted_nopc = want_nopc_h8300h;
2053 switch (TARGET_ARCHITECTURE->mach)
2055 case bfd_mach_h8300s:
2056 case bfd_mach_h8300sn:
2057 case bfd_mach_h8300sx:
2058 case bfd_mach_h8300sxn:
2059 wanted_nopc = want_nopc_h8300s;
2062 fetch_regs_from_dump (gch, wanted_nopc);
2064 /* And supply the extra ones the simulator uses */
2065 for (regno = NUM_REALREGS; regno < NUM_REGS; regno++)
2068 regcache_raw_supply (current_regcache, regno, (char *) &buf);
2071 stop_reason = why_stop ();
2072 expect_full_prompt ();
2074 status->kind = TARGET_WAITKIND_STOPPED;
2075 status->value.sig = TARGET_SIGNAL_TRAP;
2077 switch (stop_reason)
2079 case 1: /* Breakpoint */
2080 write_pc (read_pc ()); /* PC is always off by 2 for breakpoints */
2081 status->value.sig = TARGET_SIGNAL_TRAP;
2083 case 0: /* Single step */
2084 status->value.sig = TARGET_SIGNAL_TRAP;
2086 case 2: /* Interrupt */
2089 status->value.sig = TARGET_SIGNAL_TRAP;
2094 status->value.sig = TARGET_SIGNAL_INT;
2100 printf_unfiltered ("a cycle address error?\n");
2101 status->value.sig = TARGET_SIGNAL_UNKNOWN;
2104 status->value.sig = TARGET_SIGNAL_ILL;
2107 status->value.sig = TARGET_SIGNAL_SEGV;
2109 case 7: /* Anything else (NITEMS + 1) */
2110 printf_unfiltered ("a write protect error?\n");
2111 status->value.sig = TARGET_SIGNAL_UNKNOWN;
2114 /* Get the user's attention - this should never happen. */
2115 internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
2118 return inferior_ptid;
2121 /* Stop the running program. */
2126 /* Sending a ^C is supposed to stop the running program. */
2127 putchar_e7000 (CTRLC);
2130 /* Define the target subroutine names. */
2132 struct target_ops e7000_ops;
2135 init_e7000_ops (void)
2137 e7000_ops.to_shortname = "e7000";
2138 e7000_ops.to_longname = "Remote Renesas e7000 target";
2139 e7000_ops.to_doc = "Use a remote Renesas e7000 ICE connected by a serial line;\n\
2140 or a network connection.\n\
2141 Arguments are the name of the device for the serial line,\n\
2142 the speed to connect at in bits per second.\n\
2144 target e7000 /dev/ttya 9600\n\
2145 target e7000 foobar";
2146 e7000_ops.to_open = e7000_open;
2147 e7000_ops.to_close = e7000_close;
2148 e7000_ops.to_detach = e7000_detach;
2149 e7000_ops.to_resume = e7000_resume;
2150 e7000_ops.to_wait = e7000_wait;
2151 e7000_ops.to_fetch_registers = e7000_fetch_register;
2152 e7000_ops.to_store_registers = e7000_store_register;
2153 e7000_ops.to_prepare_to_store = e7000_prepare_to_store;
2154 e7000_ops.deprecated_xfer_memory = e7000_xfer_inferior_memory;
2155 e7000_ops.to_files_info = e7000_files_info;
2156 e7000_ops.to_insert_breakpoint = e7000_insert_breakpoint;
2157 e7000_ops.to_remove_breakpoint = e7000_remove_breakpoint;
2158 e7000_ops.to_kill = e7000_kill;
2159 e7000_ops.to_load = e7000_load;
2160 e7000_ops.to_create_inferior = e7000_create_inferior;
2161 e7000_ops.to_mourn_inferior = e7000_mourn_inferior;
2162 e7000_ops.to_stop = e7000_stop;
2163 e7000_ops.to_stratum = process_stratum;
2164 e7000_ops.to_has_all_memory = 1;
2165 e7000_ops.to_has_memory = 1;
2166 e7000_ops.to_has_stack = 1;
2167 e7000_ops.to_has_registers = 1;
2168 e7000_ops.to_has_execution = 1;
2169 e7000_ops.to_magic = OPS_MAGIC;
2172 extern initialize_file_ftype _initialize_remote_e7000; /* -Wmissing-prototypes */
2175 _initialize_remote_e7000 (void)
2178 add_target (&e7000_ops);
2180 add_com ("e7000", class_obscure, e7000_command,
2181 "Send a command to the e7000 monitor.");
2183 add_com ("ftplogin", class_obscure, e7000_login_command,
2184 "Login to machine and change to directory.");
2186 add_com ("ftpload", class_obscure, e7000_ftp_command,
2187 "Fetch and load a file from previously described place.");
2189 add_com ("drain", class_obscure, e7000_drain_command,
2190 "Drain pending e7000 text buffers.");
2192 deprecated_add_show_from_set
2193 (add_set_cmd ("usehardbreakpoints", no_class,
2194 var_integer, (char *) &use_hard_breakpoints, "\
2195 Set use of hardware breakpoints for all breakpoints.\n", &setlist),