+++ /dev/null
-/* Memory-access and commands for remote es1800 processes, for GDB.
-
- Copyright 1988, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000,
- 2001, 2002 Free Software Foundation, Inc.
-
- This file is added to GDB to make it possible to do debugging via an
- ES-1800 emulator. The code was originally written by Johan Holmberg
- TT/SJ Ericsson Telecom AB and later modified by Johan Henriksson
- TT/SJ. It was modified for gdb 4.0 by TX/DK Jan Nordenand by TX/DKG
- Harald Johansen.
-
- This file is part of GDB.
-
- GDB is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 1, or (at your option)
- any later version.
-
- GDB is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-
-/* Emulator communication protocol.
- All values are encoded in ascii hex digits.
-
- Request
- Command
- Reply
- read registers:
- DR<cr>
- - 0 - - 1 - - 2 - - 3 - - 4 - - 5 - -- 6 - - 7 -
- D = XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
- A = XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
- PC = XXXXXX SSP = XXXXXX USP = XXXXXX SR = XXXXXXXX
- >
- Each byte of register data is described by two hex digits.
-
- write regs
- D0=XXXXXXXX<cr>
- >D1=XXXXXXXX<cr>
- >D2=XXXXXXXX<cr>
- >D3=XXXXXXXX<cr>
- >D4=XXXXXXXX<cr>
- >D5=XXXXXXXX<cr>
- >D6=XXXXXXXX<cr>
- >D7=XXXXXXXX<cr>
- >A0=XXXXXXXX<cr>
- >A1=XXXXXXXX<cr>
- >A2=XXXXXXXX<cr>
- >A3=XXXXXXXX<cr>
- >A4=XXXXXXXX<cr>
- >A5=XXXXXXXX<cr>
- >A6=XXXXXXXX<cr>
- >A7=XXXXXXXX<cr>
- >SR=XXXXXXXX<cr>
- >PC=XXXXXX<cr>
- >
- Each byte of register data is described by two hex digits.
-
- read mem
- @.BAA..AA
- $FFFFFFXX
- >
- AA..AA is address, XXXXXXX is the contents
-
- write mem
- @.BAA..AA=$XXXXXXXX
- >
- AA..AA is address, XXXXXXXX is data
-
- cont
- PC=$AA..AA
- >RBK
- R>
- AA..AA is address to resume. If AA..AA is omitted, resume at same address.
-
- step
- PC=$AA..AA
- >STP
- R>
- AA..AA is address to resume. If AA..AA is omitted, resume at same address.
-
- kill req
- STP
- >
- */
-
-
-#include <stdio.h>
-#include <signal.h>
-#include <sys/ioctl.h>
-#include <sys/file.h>
-#include <errno.h>
-#include <ctype.h>
-#include <setjmp.h>
-#include <fcntl.h>
-#include "defs.h"
-#include "gdb_string.h"
-#include "frame.h"
-#include "inferior.h"
-#include "target.h"
-#include "command.h"
-#include "symfile.h"
-#include "remote-utils.h"
-#include "gdbcore.h"
-#include "serial.h"
-#include "regcache.h"
-#include "value.h"
-
-/* Prototypes for local functions */
-
-static void es1800_child_detach (char *, int);
-
-static void es1800_child_open (char *, int);
-
-static void es1800_transparent (char *, int);
-
-static void es1800_create_inferior (char *, char *, char **);
-
-static void es1800_load (char *, int);
-
-static void es1800_kill (void);
-
-static int verify_break (int);
-
-static int es1800_remove_breakpoint (CORE_ADDR, char *);
-
-static int es1800_insert_breakpoint (CORE_ADDR, char *);
-
-static void es1800_files_info (struct target_ops *);
-
-static int es1800_xfer_inferior_memory (CORE_ADDR, char *, int, int,
- struct mem_attrib *,
- struct target_ops *);
-
-static void es1800_prepare_to_store (void);
-
-static ptid_t es1800_wait (ptid_t, struct target_waitstatus *);
-
-static void es1800_resume (ptid_t, int, enum target_signal);
-
-static void es1800_detach (char *, int);
-
-static void es1800_attach (char *, int);
-
-static int damn_b (char *);
-
-static void es1800_open (char *, int);
-
-static void es1800_timer (void);
-
-static void es1800_reset (char *);
-
-static void es1800_request_quit (void);
-
-static int readchar (void);
-
-static void expect (char *, int);
-
-static void expect_prompt (void);
-
-static void download (FILE *, int, int);
-
-#if 0
-static void bfd_copy (bfd *, bfd *);
-#endif
-
-static void get_break_addr (int, CORE_ADDR *);
-
-static int fromhex (int);
-
-static int tohex (int);
-
-static void es1800_close (int);
-
-static void es1800_fetch_registers (void);
-
-static void es1800_fetch_register (int);
-
-static void es1800_store_register (int);
-
-static void es1800_read_bytes (CORE_ADDR, char *, int);
-
-static void es1800_write_bytes (CORE_ADDR, char *, int);
-
-static void send_with_reply (char *, char *, int);
-
-static void send_command (char *);
-
-static void send (char *);
-
-static void getmessage (char *, int);
-
-static void es1800_mourn_inferior (void);
-
-static void es1800_create_break_insn (char *, int);
-
-static void es1800_init_break (char *, int);
-
-/* Local variables */
-
-/* FIXME: Convert this to use "set remotedebug" instead. */
-#define LOG_FILE "es1800.log"
-#if defined (LOG_FILE)
-static FILE *log_file;
-#endif
-
-extern struct target_ops es1800_ops; /* Forward decl */
-extern struct target_ops es1800_child_ops; /* Forward decl */
-
-static int kiodebug;
-static int timeout = 100;
-static char *savename; /* Name of i/o device used */
-static serial_ttystate es1800_saved_ttystate;
-static int es1800_fc_save; /* Save fcntl state */
-
-/* indicates that the emulator uses 32-bit data-adress (68020-mode)
- instead of 24-bit (68000 -mode) */
-
-static int m68020;
-
-#define MODE (m68020 ? "M68020" : "M68000" )
-#define ES1800_BREAK_VEC (0xf)
-
-/* Descriptor for I/O to remote machine. Initialize it to NULL so that
- es1800_open knows that we don't have a file open when the program
- starts. */
-
-static struct serial *es1800_desc = NULL;
-
-#define PBUFSIZ 1000
-#define HDRLEN sizeof("@.BAAAAAAAA=$VV\r")
-
-/* Maximum number of bytes to read/write at once. The value here
- is chosen to fill up a packet. */
-
-#define MAXBUFBYTES ((PBUFSIZ-150)*16/75 )
-
-static int es1800_break_vec = 0;
-static char es1800_break_insn[2];
-static long es1800_break_address;
-static void (*old_sigint) (); /* Old signal-handler for sigint */
-static jmp_buf interrupt;
-
-/* Local signalhandler to allow breaking tranfers or program run.
- Rely on global variables: old_sigint(), interrupt */
-
-static void
-es1800_request_quit (void)
-{
- /* restore original signalhandler */
- signal (SIGINT, old_sigint);
- longjmp (interrupt, 1);
-}
-
-
-/* Reset emulator.
- Sending reset character(octal 32) to emulator.
- quit - return to '(esgdb)' prompt or continue */
-
-static void
-es1800_reset (char *quit)
-{
- char buf[80];
-
- if (quit)
- {
- printf ("\nResetting emulator... ");
- }
- strcpy (buf, "\032");
- send (buf);
- expect_prompt ();
- if (quit)
- {
- error ("done\n");
- }
-}
-
-
-/* Open a connection to a remote debugger and push the new target
- onto the stack. Check if the emulator is responding and find out
- what kind of processor the emulator is connected to.
- Initiate the breakpoint handling in the emulator.
-
- name - the filename used for communication (ex. '/dev/tta')
- from_tty - says whether to be verbose or not */
-
-static void
-es1800_open (char *name, int from_tty)
-{
- char buf[PBUFSIZ];
- char *p;
- int i, fcflag;
-
- m68020 = 0;
-
- if (!name) /* no device name given in target command */
- {
- error_no_arg ("serial port device name");
- }
-
- target_preopen (from_tty);
- es1800_close (0);
-
- /* open the device and configure it for communication */
-
-#ifndef DEBUG_STDIN
-
- es1800_desc = serial_open (name);
- if (es1800_desc == NULL)
- {
- perror_with_name (name);
- }
- savename = savestring (name, strlen (name));
-
- es1800_saved_ttystate = serial_get_tty_state (es1800_desc);
-
- if ((fcflag = fcntl (deprecated_serial_fd (es1800_desc), F_GETFL, 0)) == -1)
- {
- perror_with_name ("fcntl serial");
- }
- es1800_fc_save = fcflag;
-
- fcflag = (fcflag & (FREAD | FWRITE)); /* mask out any funny stuff */
- if (fcntl (deprecated_serial_fd (es1800_desc), F_SETFL, fcflag) == -1)
- {
- perror_with_name ("fcntl serial");
- }
-
- if (baud_rate != -1)
- {
- if (serial_setbaudrate (es1800_desc, baud_rate))
- {
- serial_close (es1800_desc);
- perror_with_name (name);
- }
- }
-
- serial_raw (es1800_desc);
-
- /* If there is something sitting in the buffer we might take it as a
- response to a command, which would be bad. */
- serial_flush_input (es1800_desc);
-
-#endif /* DEBUG_STDIN */
-
- push_target (&es1800_ops); /* Switch to using remote target now */
- if (from_tty)
- {
- printf ("Remote ES1800 debugging using %s\n", name);
- }
-
-#if defined (LOG_FILE)
-
- log_file = fopen (LOG_FILE, "w");
- if (log_file == NULL)
- {
- perror_with_name (LOG_FILE);
- }
-
-#endif /* LOG_FILE */
-
- /* Hello? Are you there?, also check mode */
-
- /* send_with_reply( "DB 0 TO 1", buf, sizeof(buf)); */
- /* for (p = buf, i = 0; *p++ =='0';) *//* count the number of zeros */
- /* i++; */
-
- send ("\032");
- getmessage (buf, sizeof (buf)); /* send reset character */
-
- if (from_tty)
- {
- printf ("Checking mode.... ");
- }
- /* m68020 = (i==8); *//* if eight zeros then we are in m68020 mode */
-
- /* What kind of processor am i talking to ? */
- p = buf;
- while (*p++ != '\n')
- {;
- }
- while (*p++ != '\n')
- {;
- }
- while (*p++ != '\n')
- {;
- }
- for (i = 0; i < 20; i++, p++)
- {;
- }
- m68020 = !strncmp (p, "68020", 5);
- if (from_tty)
- {
- printf ("You are in %s(%c%c%c%c%c)-mode\n", MODE, p[0], p[1], p[2],
- p[3], p[4]);
- }
-
- /* if no init_break statement is present in .gdb file we have to check
- whether to download a breakpoint routine or not */
-
-#if 0
- if ((es1800_break_vec == 0) || (verify_break (es1800_break_vec) != 0)
- && query ("No breakpoint routine in ES 1800 emulator!\nDownload a breakpoint routine to the emulator? "))
- {
- CORE_ADDR memaddress;
- printf ("Give the start address of the breakpoint routine: ");
- scanf ("%li", &memaddress);
- es1800_init_break ((es1800_break_vec ? es1800_break_vec :
- ES1800_BREAK_VEC), memaddress);
- }
-#endif
-
-}
-
-/* Close out all files and local state before this target loses control.
- quitting - are we quitting gdb now? */
-
-static void
-es1800_close (int quitting)
-{
- if (es1800_desc != NULL)
- {
- printf ("\nClosing connection to emulator...\n");
- if (serial_set_tty_state (es1800_desc, es1800_saved_ttystate) < 0)
- print_sys_errmsg ("warning: unable to restore tty state", errno);
- fcntl (deprecated_serial_fd (es1800_desc), F_SETFL, es1800_fc_save);
- serial_close (es1800_desc);
- es1800_desc = NULL;
- }
- if (savename != NULL)
- {
- xfree (savename);
- }
- savename = NULL;
-
-#if defined (LOG_FILE)
-
- if (log_file != NULL)
- {
- if (ferror (log_file))
- {
- printf ("Error writing log file.\n");
- }
- if (fclose (log_file) != 0)
- {
- printf ("Error closing log file.\n");
- }
- log_file = NULL;
- }
-
-#endif /* LOG_FILE */
-
-}
-
-/* Attaches to a process on the target side
- proc_id - the id of the process to be attached.
- from_tty - says whether to be verbose or not */
-
-static void
-es1800_attach (char *args, int from_tty)
-{
- error ("Cannot attach to pid %s, this feature is not implemented yet.",
- args);
-}
-
-
-/* Takes a program previously attached to and detaches it.
- We better not have left any breakpoints
- in the program or it'll die when it hits one.
- Close the open connection to the remote debugger.
- Use this when you want to detach and do something else
- with your gdb.
-
- args - arguments given to the 'detach' command
- from_tty - says whether to be verbose or not */
-
-static void
-es1800_detach (char *args, int from_tty)
-{
- if (args)
- {
- error ("Argument given to \"detach\" when remotely debugging.");
- }
- pop_target ();
- if (from_tty)
- {
- printf ("Ending es1800 remote debugging.\n");
- }
-}
-
-
-/* Tell the remote machine to resume.
- step - single-step or run free
- siggnal - the signal value to be given to the target (0 = no signal) */
-
-static void
-es1800_resume (ptid_t ptid, int step, enum target_signal siggnal)
-{
- char buf[PBUFSIZ];
-
- if (siggnal)
- {
- error ("Can't send signals to a remote system.");
- }
- if (step)
- {
- strcpy (buf, "STP\r");
- send (buf);
- }
- else
- {
- send_command ("RBK");
- }
-}
-
-/* Wait until the remote machine stops, then return,
- storing status in STATUS just as `wait' would.
- status - */
-
-static ptid_t
-es1800_wait (ptid_t ptid, struct target_waitstatus *status)
-{
- unsigned char buf[PBUFSIZ];
- int old_timeout = timeout;
-
- status->kind = TARGET_WAITKIND_EXITED;
- status->value.integer = 0;
-
- timeout = 0; /* Don't time out -- user program is running. */
- if (!setjmp (interrupt))
- {
- old_sigint = signal (SIGINT, es1800_request_quit);
- while (1)
- {
- getmessage (buf, sizeof (buf));
- if (strncmp (buf, "\r\n* BREAK *", 11) == 0)
- {
- status->kind = TARGET_WAITKIND_STOPPED;
- status->value.sig = TARGET_SIGNAL_TRAP;
- send_command ("STP"); /* Restore stack and PC and such */
- if (m68020)
- {
- send_command ("STP");
- }
- break;
- }
- if (strncmp (buf, "STP\r\n ", 6) == 0)
- {
- status->kind = TARGET_WAITKIND_STOPPED;
- status->value.sig = TARGET_SIGNAL_TRAP;
- break;
- }
- if (buf[strlen (buf) - 2] == 'R')
- {
- printf ("Unexpected emulator reply: \n%s\n", buf);
- }
- else
- {
- printf ("Unexpected stop: \n%s\n", buf);
- status->kind = TARGET_WAITKIND_STOPPED;
- status->value.sig = TARGET_SIGNAL_QUIT;
- break;
- }
- }
- }
- else
- {
- fflush (stdin);
- printf ("\nStopping emulator...");
- if (!setjmp (interrupt))
- {
- old_sigint = signal (SIGINT, es1800_request_quit);
- send_command ("STP");
- printf (" emulator stopped\n");
- status->kind = TARGET_WAITKIND_STOPPED;
- status->value.sig = TARGET_SIGNAL_INT;
- }
- else
- {
- fflush (stdin);
- es1800_reset ((char *) 1);
- }
- }
- signal (SIGINT, old_sigint);
- timeout = old_timeout;
- return inferior_ptid;
-}
-
-
-/* Fetch register values from remote machine.
- regno - the register to be fetched (fetch all registers if -1) */
-
-static void
-es1800_fetch_register (int regno)
-{
- char buf[PBUFSIZ];
- int k;
- int r;
- char *p;
- static char regtab[18][4] =
- {
- "D0 ", "D1 ", "D2 ", "D3 ", "D4 ", "D5 ", "D6 ", "D7 ",
- "A0 ", "A1 ", "A2 ", "A3 ", "A4 ", "A5 ", "A6 ", "SSP",
- "SR ", "PC "
- };
-
- if ((regno < 15) || (regno == 16) || (regno == 17))
- {
- r = regno * 4;
- send_with_reply (regtab[regno], buf, sizeof (buf));
- p = buf;
- for (k = 0; k < 4; k++)
- {
- if ((p[k * 2 + 1] == 0) || (p[k * 2 + 2] == 0))
- {
- error ("Emulator reply is too short: %s", buf);
- }
- deprecated_registers[r++] = (fromhex (p[k * 2 + 1]) * 16) + fromhex (p[k * 2 + 2]);
- }
- }
- else
- {
- es1800_fetch_registers ();
- }
-}
-
-/* Read the remote registers into REGISTERS.
- Always fetches all registers. */
-
-static void
-es1800_fetch_registers (void)
-{
- char buf[PBUFSIZ];
- char SR_buf[PBUFSIZ];
- int i;
- int k;
- int r;
- char *p;
-
- send_with_reply ("DR", buf, sizeof (buf));
-
- /* Reply is edited to a string that describes registers byte by byte,
- each byte encoded as two hex characters. */
-
- p = buf;
- r = 0;
-
- /* parsing row one - D0-D7-registers */
-
- while (*p++ != '\n')
- {;
- }
- for (i = 4; i < 70; i += (i == 39 ? 3 : 1))
- {
- for (k = 0; k < 4; k++)
- {
- if (p[i + 0] == 0 || p[i + 1] == 0)
- {
- error ("Emulator reply is too short: %s", buf);
- }
- deprecated_registers[r++] = (fromhex (p[i + 0]) * 16) + fromhex (p[i + 1]);
- i += 2;
- }
- }
- p += i;
-
- /* parsing row two - A0-A6-registers */
-
- while (*p++ != '\n')
- {;
- }
- for (i = 4; i < 61; i += (i == 39 ? 3 : 1))
- {
- for (k = 0; k < 4; k++)
- {
- if (p[i + 0] == 0 || p[i + 1] == 0)
- {
- error ("Emulator reply is too short: %s", buf);
- }
- deprecated_registers[r++] = (fromhex (p[i + 0])) * 16 + fromhex (p[i + 1]);
- i += 2;
- }
- }
- p += i;
-
- while (*p++ != '\n')
- {;
- }
-
- /* fetch SSP-, SR- and PC-registers */
-
- /* first - check STATUS-word and decide which stackpointer to use */
-
- send_with_reply ("SR", SR_buf, sizeof (SR_buf));
- p = SR_buf;
- p += 5;
-
- if (m68020)
- {
- if (*p == '3') /* use masterstackpointer MSP */
- {
- send_with_reply ("MSP", buf, sizeof (buf));
- }
- else if (*p == '2') /* use interruptstackpointer ISP */
- {
- send_with_reply ("ISP", buf, sizeof (buf));
- }
- else
- /* use userstackpointer USP */
- {
- send_with_reply ("USP", buf, sizeof (buf));
- }
- p = buf;
- for (k = 0; k < 4; k++)
- {
- if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0)
- {
- error ("Emulator reply is too short: %s", buf);
- }
- deprecated_registers[r++] = fromhex (buf[k * 2 + 1]) * 16 + fromhex (buf[k * 2 + 2]);
- }
-
- p = SR_buf;
- for (k = 0; k < 4; k++)
- {
- if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0)
- {
- error ("Emulator reply is too short: %s", buf);
- }
- deprecated_registers[r++] =
- fromhex (SR_buf[k * 2 + 1]) * 16 + fromhex (SR_buf[k * 2 + 2]);
- }
- send_with_reply ("PC", buf, sizeof (buf));
- p = buf;
- for (k = 0; k < 4; k++)
- {
- if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0)
- {
- error ("Emulator reply is too short: %s", buf);
- }
- deprecated_registers[r++] = fromhex (buf[k * 2 + 1]) * 16 + fromhex (buf[k * 2 + 2]);
- }
- }
- else
- /* 68000-mode */
- {
- if (*p == '2') /* use supervisorstackpointer SSP */
- {
- send_with_reply ("SSP", buf, sizeof (buf));
- }
- else
- /* use userstackpointer USP */
- {
- send_with_reply ("USP", buf, sizeof (buf));
- }
-
- /* fetch STACKPOINTER */
-
- p = buf;
- for (k = 0; k < 4; k++)
- {
- if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0)
- {
- error ("Emulator reply is too short: %s", buf);
- }
- deprecated_registers[r++] = fromhex (buf[k * 2 + 1]) * 16 + fromhex (buf[k * 2 + 2]);
- }
-
- /* fetch STATUS */
-
- p = SR_buf;
- for (k = 0; k < 4; k++)
- {
- if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0)
- {
- error ("Emulator reply is too short: %s", buf);
- }
- deprecated_registers[r++] =
- fromhex (SR_buf[k * 2 + 1]) * 16 + fromhex (SR_buf[k * 2 + 2]);
- }
-
- /* fetch PC */
-
- send_with_reply ("PC", buf, sizeof (buf));
- p = buf;
- for (k = 0; k < 4; k++)
- {
- if (p[k * 2 + 1] == 0 || p[k * 2 + 2] == 0)
- {
- error ("Emulator reply is too short: %s", buf);
- }
- deprecated_registers[r++] = fromhex (buf[k * 2 + 1]) * 16 + fromhex (buf[k * 2 + 2]);
- }
- }
-}
-
-/* Store register value, located in REGISTER, on the target processor.
- regno - the register-number of the register to store
- (-1 means store them all)
- FIXME: Return errno value. */
-
-static void
-es1800_store_register (int regno)
-{
-
- static char regtab[18][4] =
- {
- "D0 ", "D1 ", "D2 ", "D3 ", "D4 ", "D5 ", "D6 ", "D7 ",
- "A0 ", "A1 ", "A2 ", "A3 ", "A4 ", "A5 ", "A6 ", "SSP",
- "SR ", "PC "
- };
-
- char buf[PBUFSIZ];
- char SR_buf[PBUFSIZ];
- char stack_pointer[4];
- char *p;
- int i;
- int j;
- int k;
- unsigned char *r;
-
- r = (unsigned char *) deprecated_registers;
-
- if (regno == -1) /* write all registers */
- {
- j = 0;
- k = 18;
- }
- else
- /* write one register */
- {
- j = regno;
- k = regno + 1;
- r += regno * 4;
- }
-
- if ((regno == -1) || (regno == 15))
- {
- /* fetch current status */
- send_with_reply ("SR", SR_buf, sizeof (SR_buf));
- p = SR_buf;
- p += 5;
- if (m68020)
- {
- if (*p == '3') /* use masterstackpointer MSP */
- {
- strcpy (stack_pointer, "MSP");
- }
- else
- {
- if (*p == '2') /* use interruptstackpointer ISP */
- {
- strcpy (stack_pointer, "ISP");
- }
- else
- {
- strcpy (stack_pointer, "USP"); /* use userstackpointer USP */
- }
- }
- }
- else
- /* 68000-mode */
- {
- if (*p == '2') /* use supervisorstackpointer SSP */
- {
- strcpy (stack_pointer, "SSP");
- }
- else
- {
- strcpy (stack_pointer, "USP"); /* use userstackpointer USP */
- }
- }
- strcpy (regtab[15], stack_pointer);
- }
-
- for (i = j; i < k; i++)
- {
- buf[0] = regtab[i][0];
- buf[1] = regtab[i][1];
- buf[2] = regtab[i][2];
- buf[3] = '=';
- buf[4] = '$';
- buf[5] = tohex ((*r >> 4) & 0x0f);
- buf[6] = tohex (*r++ & 0x0f);
- buf[7] = tohex ((*r >> 4) & 0x0f);
- buf[8] = tohex (*r++ & 0x0f);
- buf[9] = tohex ((*r >> 4) & 0x0f);
- buf[10] = tohex (*r++ & 0x0f);
- buf[11] = tohex ((*r >> 4) & 0x0f);
- buf[12] = tohex (*r++ & 0x0f);
- buf[13] = 0;
-
- send_with_reply (buf, buf, sizeof (buf)); /* FIXME, reply not used? */
- }
-}
-
-
-/* Prepare to store registers. */
-
-static void
-es1800_prepare_to_store (void)
-{
- /* Do nothing, since we can store individual regs */
-}
-
-/* Convert hex digit A to a number. */
-
-static int
-fromhex (int a)
-{
- if (a >= '0' && a <= '9')
- {
- return a - '0';
- }
- else if (a >= 'a' && a <= 'f')
- {
- return a - 'a' + 10;
- }
- else if (a >= 'A' && a <= 'F')
- {
- return a - 'A' + 10;
- }
- else
- {
- error ("Reply contains invalid hex digit");
- }
- return (-1);
-}
-
-
-/* Convert number NIB to a hex digit. */
-
-static int
-tohex (int nib)
-{
- if (nib < 10)
- {
- return ('0' + nib);
- }
- else
- {
- return ('A' + nib - 10);
- }
-}
-
-/* Read or write LEN bytes from inferior memory at MEMADDR, transferring
- to or from debugger address MYADDR. Write to inferior if WRITE is
- nonzero. Returns length of data written or read; 0 for error.
-
- memaddr - the target's address
- myaddr - gdb's address
- len - number of bytes
- write - write if != 0 otherwise read
- tops - unused */
-
-static int
-es1800_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len,
- int write, struct mem_attrib *attrib,
- struct target_ops *target)
-{
- int origlen = len;
- int xfersize;
-
- while (len > 0)
- {
- xfersize = len > MAXBUFBYTES ? MAXBUFBYTES : len;
- if (write)
- {
- es1800_write_bytes (memaddr, myaddr, xfersize);
- }
- else
- {
- es1800_read_bytes (memaddr, myaddr, xfersize);
- }
- memaddr += xfersize;
- myaddr += xfersize;
- len -= xfersize;
- }
- return (origlen); /* no error possible */
-}
-
-
-/* Write memory data directly to the emulator.
- This does not inform the data cache; the data cache uses this.
- MEMADDR is the address in the remote memory space.
- MYADDR is the address of the buffer in our space.
- LEN is the number of bytes.
-
- memaddr - the target's address
- myaddr - gdb's address
- len - number of bytes */
-
-static void
-es1800_write_bytes (CORE_ADDR memaddr, char *myaddr, int len)
-{
- char buf[PBUFSIZ];
- int i;
- char *p;
-
- p = myaddr;
- for (i = 0; i < len; i++)
- {
- sprintf (buf, "@.B$%x=$%x", memaddr + i, (*p++) & 0xff);
- send_with_reply (buf, buf, sizeof (buf)); /* FIXME send_command? */
- }
-}
-
-
-/* Read memory data directly from the emulator.
- This does not use the data cache; the data cache uses this.
-
- memaddr - the target's address
- myaddr - gdb's address
- len - number of bytes */
-
-static void
-es1800_read_bytes (CORE_ADDR memaddr, char *myaddr, int len)
-{
- static int DB_tab[16] =
- {8, 11, 14, 17, 20, 23, 26, 29, 34, 37, 40, 43, 46, 49, 52, 55};
- char buf[PBUFSIZ];
- int i;
- int low_addr;
- char *p;
- char *b;
-
- if (len > PBUFSIZ / 2 - 1)
- {
- internal_error (__FILE__, __LINE__, "failed internal consistency check");
- }
-
- if (len == 1) /* The emulator does not like expressions like: */
- {
- len = 2; /* DB.B $20018 TO $20018 */
- }
-
- /* Reply describes registers byte by byte, each byte encoded as two hex
- characters. */
-
- sprintf (buf, "DB.B $%x TO $%x", memaddr, memaddr + len - 1);
- send_with_reply (buf, buf, sizeof (buf));
- b = buf;
- low_addr = memaddr & 0x0f;
- for (i = low_addr; i < low_addr + len; i++)
- {
- if ((!(i % 16)) && i)
- { /* if (i = 16,32,48) */
- while (*p++ != '\n')
- {;
- }
- b = p;
- }
- p = b + DB_tab[i % 16] + (m68020 ? 2 : 0);
- if (p[0] == 32 || p[1] == 32)
- {
- error ("Emulator reply is too short: %s", buf);
- }
- myaddr[i - low_addr] = fromhex (p[0]) * 16 + fromhex (p[1]);
- }
-}
-
-/* Display information about the current target. TOPS is unused. */
-
-static void
-es1800_files_info (struct target_ops *tops)
-{
- printf ("ES1800 Attached to %s at %d baud in %s mode\n", savename, 19200,
- MODE);
-}
-
-
-/* We read the contents of the target location and stash it,
- then overwrite it with a breakpoint instruction.
-
- addr - is the target location in the target machine.
- contents_cache - is a pointer to memory allocated for saving the target contents.
- It is guaranteed by the caller to be long enough to save sizeof
- BREAKPOINT bytes.
-
- FIXME: This size is target_arch dependent and should be available in
- the target_arch transfer vector, if we ever have one... */
-
-static int
-es1800_insert_breakpoint (CORE_ADDR addr, char *contents_cache)
-{
- int val;
-
- val = target_read_memory (addr, contents_cache, sizeof (es1800_break_insn));
-
- if (val == 0)
- {
- val = target_write_memory (addr, es1800_break_insn,
- sizeof (es1800_break_insn));
- }
-
- return (val);
-}
-
-
-/* Write back the stashed instruction
-
- addr - is the target location in the target machine.
- contents_cache - is a pointer to memory allocated for saving the target contents.
- It is guaranteed by the caller to be long enough to save sizeof
- BREAKPOINT bytes. */
-
-static int
-es1800_remove_breakpoint (CORE_ADDR addr, char *contents_cache)
-{
-
- return (target_write_memory (addr, contents_cache,
- sizeof (es1800_break_insn)));
-}
-
-/* create_break_insn ()
- Primitive datastructures containing the es1800 breakpoint instruction */
-
-static void
-es1800_create_break_insn (char *ins, int vec)
-{
- if (vec == 15)
- {
- ins[0] = 0x4e;
- ins[1] = 0x4f;
- }
-}
-
-
-/* verify_break ()
- Seach for breakpoint routine in emulator memory.
- returns non-zero on failure
- vec - trap vector used for breakpoints */
-
-static int
-verify_break (int vec)
-{
- CORE_ADDR memaddress;
- char buf[8];
- char *instr = "NqNqNqNs"; /* breakpoint routine */
- int status;
-
- get_break_addr (vec, &memaddress);
-
- if (memaddress)
- {
- status = target_read_memory (memaddress, buf, 8);
- if (status != 0)
- {
- memory_error (status, memaddress);
- }
- return (strcmp (instr, buf));
- }
- return (-1);
-}
-
-
-/* get_break_addr ()
- find address of breakpoint routine
- vec - trap vector used for breakpoints
- addrp - store the address here */
-
-static void
-get_break_addr (int vec, CORE_ADDR *addrp)
-{
- CORE_ADDR memaddress = 0;
- int status;
- int k;
- char buf[PBUFSIZ];
- char base_addr[4];
- char *p;
-
- if (m68020)
- {
- send_with_reply ("VBR ", buf, sizeof (buf));
- p = buf;
- for (k = 0; k < 4; k++)
- {
- if ((p[k * 2 + 1] == 0) || (p[k * 2 + 2] == 0))
- {
- error ("Emulator reply is too short: %s", buf);
- }
- base_addr[k] = (fromhex (p[k * 2 + 1]) * 16) + fromhex (p[k * 2 + 2]);
- }
- /* base addr of exception vector table */
- memaddress = *((CORE_ADDR *) base_addr);
- }
-
- memaddress += (vec + 32) * 4; /* address of trap vector */
- status = target_read_memory (memaddress, (char *) addrp, 4);
- if (status != 0)
- {
- memory_error (status, memaddress);
- }
-}
-
-
-/* Kill an inferior process */
-
-static void
-es1800_kill (void)
-{
- if (!ptid_equal (inferior_ptid, null_ptid))
- {
- inferior_ptid = null_ptid;
- es1800_mourn_inferior ();
- }
-}
-
-
-/* Load a file to the ES1800 emulator.
- Converts the file from a.out format into Extended Tekhex format
- before the file is loaded.
- Also loads the trap routine, and sets the ES1800 breakpoint on it
- filename - the a.out to be loaded
- from_tty - says whether to be verbose or not
- FIXME Uses emulator overlay memory for trap routine */
-
-static void
-es1800_load (char *filename, int from_tty)
-{
-
- FILE *instream;
- char loadname[15];
- char buf[160];
- struct cleanup *old_chain;
- int es1800_load_format = 5;
-
- if (es1800_desc == NULL)
- {
- printf ("No emulator attached, type emulator-command first\n");
- return;
- }
-
- filename = tilde_expand (filename);
- make_cleanup (xfree, filename);
-
- switch (es1800_load_format)
- {
- case 2: /* Extended Tekhex */
- if (from_tty)
- {
- printf ("Converting \"%s\" to Extended Tekhex Format\n", filename);
- }
- sprintf (buf, "tekhex %s", filename);
- system (buf);
- sprintf (loadname, "out.hex");
- break;
-
- case 5: /* Motorola S-rec */
- if (from_tty)
- {
- printf ("Converting \"%s\" to Motorola S-record format\n",
- filename);
- }
- /* in the future the source code in copy (part of binutils-1.93) will
- be included in this file */
- sprintf (buf,
- "copy -s \"a.out-sunos-big\" -d \"srec\" %s /tmp/out.hex",
- filename);
- system (buf);
- sprintf (loadname, "/tmp/out.hex");
- break;
-
- default:
- error ("Downloading format not defined\n");
- }
-
- breakpoint_init_inferior ();
- inferior_ptid = null_ptid;
- if (from_tty)
- {
- printf ("Downloading \"%s\" to the ES 1800\n", filename);
- }
- if ((instream = fopen (loadname, "r")) == NULL)
- {
- perror_with_name ("fopen:");
- }
-
- old_chain = make_cleanup (fclose, instream);
- immediate_quit++;
-
- es1800_reset (0);
-
- download (instream, from_tty, es1800_load_format);
-
- /* if breakpoint routine is not present anymore we have to check
- whether to download a new breakpoint routine or not */
-
- if ((verify_break (es1800_break_vec) != 0)
- && query ("No breakpoint routine in ES 1800 emulator!\nDownload a breakpoint routine to the emulator? "))
- {
- char buf[128];
- printf ("Using break vector 0x%x\n", es1800_break_vec);
- sprintf (buf, "0x%x ", es1800_break_vec);
- printf ("Give the start address of the breakpoint routine: ");
- fgets (buf + strlen (buf), sizeof (buf) - strlen (buf), stdin);
- es1800_init_break (buf, 0);
- }
-
- do_cleanups (old_chain);
- expect_prompt ();
- readchar (); /* FIXME I am getting a ^G = 7 after the prompt */
- printf ("\n");
-
- if (fclose (instream) == EOF)
- {
- ;
- }
-
- if (es1800_load_format != 2)
- {
- sprintf (buf, "/usr/bin/rm %s", loadname);
- system (buf);
- }
-
- symbol_file_add_main (filename, from_tty); /* reading symbol table */
- immediate_quit--;
-}
-
-#if 0
-
-#define NUMCPYBYTES 20
-
-static void
-bfd_copy (bfd *from_bfd, bfd *to_bfd)
-{
- asection *p, *new;
- int i;
- char buf[NUMCPYBYTES];
-
- for (p = from_bfd->sections; p != NULL; p = p->next)
- {
- printf (" Copying section %s. Size = %x.\n", p->name, p->_cooked_size);
- printf (" vma = %x, offset = %x, output_sec = %x\n",
- p->vma, p->output_offset, p->output_section);
- new = bfd_make_section (to_bfd, p->name);
- if (p->_cooked_size &&
- !bfd_set_section_size (to_bfd, new, p->_cooked_size))
- {
- error ("Wrong BFD size!\n");
- }
- if (!bfd_set_section_flags (to_bfd, new, p->flags))
- {
- error ("bfd_set_section_flags");
- }
- new->vma = p->vma;
-
- for (i = 0; (i + NUMCPYBYTES) < p->_cooked_size; i += NUMCPYBYTES)
- {
- if (!bfd_get_section_contents (from_bfd, p, buf, (file_ptr) i,
- (bfd_size_type) NUMCPYBYTES))
- {
- error ("bfd_get_section_contents\n");
- }
- if (!bfd_set_section_contents (to_bfd, new, buf, (file_ptr) i,
- (bfd_size_type) NUMCPYBYTES))
- {
- error ("bfd_set_section_contents\n");
- }
- }
- bfd_get_section_contents (from_bfd, p, buf, (file_ptr) i,
- (bfd_size_type) (p->_cooked_size - i));
- bfd_set_section_contents (to_bfd, new, buf, (file_ptr) i,
- (bfd_size_type) (p->_cooked_size - i));
- }
-}
-
-#endif
-
-/* Start an process on the es1800 and set inferior_ptid to the new
- process' pid.
- execfile - the file to run
- args - arguments passed to the program
- env - the environment vector to pass */
-
-static void
-es1800_create_inferior (char *execfile, char *args, char **env)
-{
- int entry_pt;
- int pid;
-#if 0
- struct expression *expr;
- register struct cleanup *old_chain = 0;
- register value val;
-#endif
-
- if (args && *args)
- {
- error ("Can't pass arguments to remote ES1800 process");
- }
-
-#if 0
- if (query ("Use 'start' as entry point? "))
- {
- expr = parse_c_expression ("start");
- old_chain = make_cleanup (free_current_contents, &expr);
- val = evaluate_expression (expr);
- entry_pt = (val->location).address;
- }
- else
- {
- printf ("Enter the program's entry point (in hexadecimal): ");
- scanf ("%x", &entry_pt);
- }
-#endif
-
- if (execfile == 0 || exec_bfd == 0)
- {
- error ("No executable file specified");
- }
-
- entry_pt = (int) bfd_get_start_address (exec_bfd);
-
- pid = 42;
-
- /* Now that we have a child process, make it our target. */
-
- push_target (&es1800_child_ops);
-
- /* The "process" (board) is already stopped awaiting our commands, and
- the program is already downloaded. We just set its PC and go. */
-
- inferior_ptid = pid_to_ptid (pid); /* Needed for wait_for_inferior below */
-
- clear_proceed_status ();
-
- /* Tell wait_for_inferior that we've started a new process. */
-
- init_wait_for_inferior ();
-
- /* Set up the "saved terminal modes" of the inferior
- based on what modes we are starting it with. */
-
- target_terminal_init ();
-
- /* Install inferior's terminal modes. */
-
- target_terminal_inferior ();
-
- /* remote_start (args); */
- /* trap_expected = 0; */
- /* insert_step_breakpoint (); FIXME, do we need this? */
-
- /* Let 'er rip... */
- proceed ((CORE_ADDR) entry_pt, TARGET_SIGNAL_DEFAULT, 0);
-
-}
-
-
-/* The process has died, clean up. */
-
-static void
-es1800_mourn_inferior (void)
-{
- remove_breakpoints ();
- unpush_target (&es1800_child_ops);
- generic_mourn_inferior (); /* Do all the proper things now */
-}
-
-/* ES1800-protocol specific routines */
-
-/* Keep discarding input from the remote system, until STRING is found.
- Let the user break out immediately.
- string - the string to expect
- nowait - break out if string not the emulator's first respond otherwise
- read until string is found (== 0) */
-
-static void
-expect (char *string, int nowait)
-{
- char c;
- char *p = string;
-
- immediate_quit++;
- while (1)
- {
- c = readchar ();
- if (isalpha (c))
- {
- c = toupper (c);
- }
- if (c == toupper (*p))
- {
- p++;
- if (*p == '\0')
- {
- immediate_quit--;
- return;
- }
- }
- else if (!nowait)
- {
- p = string;
- }
- else
- {
- printf ("\'%s\' expected\n", string);
- printf ("char %d is %d", p - string, c);
- error ("\n");
- }
- }
-}
-
-/* Keep discarding input until we see the prompt. */
-
-static void
-expect_prompt (void)
-{
- expect (">", 0);
-}
-
-
-/* Read one character */
-
-#ifdef DEBUG_STDIN
-
-/* read from stdin */
-
-static int
-readchar (void)
-{
- char buf[1];
-
- buf[0] = '\0';
- printf ("readchar, give one character\n");
- read (0, buf, 1);
-
-#if defined (LOG_FILE)
- putc (buf[0] & 0x7f, log_file);
-#endif
-
- return (buf[0] & 0x7f);
-}
-
-#else /* !DEBUG_STDIN */
-
-/* Read a character from the remote system, doing all the fancy
- timeout stuff. */
-
-static int
-readchar (void)
-{
- int ch;
-
- ch = serial_readchar (es1800_desc, timeout);
-
- /* FIXME: doing an error() here will probably cause trouble, at least if from
- es1800_wait. */
- if (ch == SERIAL_TIMEOUT)
- error ("Timeout reading from remote system.");
- else if (ch == SERIAL_ERROR)
- perror_with_name ("remote read");
-
-#if defined (LOG_FILE)
- putc (ch & 0x7f, log_file);
- fflush (log_file);
-#endif
-
- return (ch);
-}
-
-#endif /* DEBUG_STDIN */
-
-
-/* Send a command to the emulator and save the reply.
- Report an error if we get an error reply.
- string - the es1800 command
- buf - containing the emulator reply on return
- len - size of buf */
-
-static void
-send_with_reply (char *string, char *buf, int len)
-{
- send (string);
- serial_write (es1800_desc, "\r", 1);
-
-#ifndef DEBUG_STDIN
- expect (string, 1);
- expect ("\r\n", 0);
-#endif
-
- getmessage (buf, len);
-}
-
-
-/* Send the command in STR to the emulator adding \r. check
- the echo for consistency.
- string - the es1800 command */
-
-static void
-send_command (char *string)
-{
- send (string);
- serial_write (es1800_desc, "\r", 1);
-
-#ifndef DEBUG_STDIN
- expect (string, 0);
- expect_prompt ();
-#endif
-
-}
-
-/* Send a string
- string - the es1800 command */
-
-static void
-send (char *string)
-{
- if (kiodebug)
- {
- fprintf_unfiltered (gdb_stderr, "Sending: %s\n", string);
- }
- serial_write (es1800_desc, string, strlen (string));
-}
-
-
-/* Read a message from the emulator and store it in BUF.
- buf - containing the emulator reply on return
- len - size of buf */
-
-static void
-getmessage (char *buf, int len)
-{
- char *bp;
- int c;
- int prompt_found = 0;
- extern kiodebug;
-
-#if defined (LOG_FILE)
- /* This is a convenient place to do this. The idea is to do it often
- enough that we never lose much data if we terminate abnormally. */
- fflush (log_file);
-#endif
-
- bp = buf;
- c = readchar ();
- do
- {
- if (c)
- {
- if (len-- < 2) /* char and terminaling NULL */
- {
- error ("input buffer overrun\n");
- }
- *bp++ = c;
- }
- c = readchar ();
- if ((c == '>') && (*(bp - 1) == ' '))
- {
- prompt_found = 1;
- }
- }
- while (!prompt_found);
- *bp = 0;
-
- if (kiodebug)
- {
- fprintf_unfiltered (gdb_stderr, "message received :%s\n", buf);
- }
-}
-
-static void
-download (FILE *instream, int from_tty, int format)
-{
- char c;
- char buf[160];
- int i = 0;
-
- send_command ("SET #2,$1A"); /* reset char = ^Z */
- send_command ("SET #3,$11,$13"); /* XON XOFF */
- if (format == 2)
- {
- send_command ("SET #26,#2");
- }
- else
- {
- send_command ("SET #26,#5"); /* Format=Extended Tekhex */
- }
- send_command ("DFB = $10");
- send_command ("PUR");
- send_command ("CES");
- send ("DNL\r");
- expect ("DNL", 1);
- if (from_tty)
- {
- printf (" 0 records loaded...\r");
- }
- while (fgets (buf, 160, instream))
- {
- send (buf);
- if (from_tty)
- {
- printf ("%5d\b\b\b\b\b", ++i);
- fflush (stdout);
- }
- if ((c = readchar ()) != 006)
- {
- error ("expected ACK");
- }
- }
- if (from_tty)
- {
- printf ("- All");
- }
-}
-
-/* Additional commands */
-
-#if defined (TIOCGETP) && defined (FNDELAY) && defined (EWOULDBLOCK)
-#define PROVIDE_TRANSPARENT
-#endif
-
-#ifdef PROVIDE_TRANSPARENT
-/* Talk directly to the emulator
- FIXME, uses busy wait, and is SUNOS (or at least BSD) specific */
-
-/*ARGSUSED */
-static void
-es1800_transparent (char *args, int from_tty)
-{
- int console;
- struct sgttyb modebl;
- int fcflag;
- int cc;
- struct sgttyb console_mode_save;
- int console_fc_save;
- int es1800_fc_save;
- int inputcnt = 80;
- char inputbuf[80];
- int consolecnt = 0;
- char consolebuf[80];
- int es1800_cnt = 0;
- char es1800_buf[80];
- int i;
-
- dont_repeat ();
- if (es1800_desc == NULL)
- {
- printf ("No emulator attached, type emulator-command first\n");
- return;
- }
-
- printf ("\n");
- printf ("You are now communicating directly with the ES 1800 emulator.\n");
- printf ("To leave this mode (transparent mode), press ^E.\n");
- printf ("\n");
- printf (" >");
- fflush (stdout);
-
- if ((console = open ("/dev/tty", O_RDWR)) == -1)
- {
- perror_with_name ("/dev/tty:");
- }
-
- if ((fcflag = fcntl (console, F_GETFL, 0)) == -1)
- {
- perror_with_name ("fcntl console");
- }
-
- console_fc_save = fcflag;
- fcflag = fcflag | FNDELAY;
-
- if (fcntl (console, F_SETFL, fcflag) == -1)
- {
- perror_with_name ("fcntl console");
- }
-
- if (ioctl (console, TIOCGETP, &modebl))
- {
- perror_with_name ("ioctl console");
- }
-
- console_mode_save = modebl;
- modebl.sg_flags = RAW;
-
- if (ioctl (console, TIOCSETP, &modebl))
- {
- perror_with_name ("ioctl console");
- }
-
- if ((fcflag = fcntl (deprecated_serial_fd (es1800_desc), F_GETFL, 0)) == -1)
- {
- perror_with_name ("fcntl serial");
- }
-
- es1800_fc_save = fcflag;
- fcflag = fcflag | FNDELAY;
-
- if (fcntl (deprecated_serial_fd (es1800_desc), F_SETFL, fcflag) == -1)
- {
- perror_with_name ("fcntl serial");
- }
-
- while (1)
- {
- cc = read (console, inputbuf, inputcnt);
- if (cc != -1)
- {
- if ((*inputbuf & 0x7f) == 0x05)
- {
- break;
- }
- for (i = 0; i < cc;)
- {
- es1800_buf[es1800_cnt++] = inputbuf[i++];
- }
- if ((cc = serial_write (es1800_desc, es1800_buf, es1800_cnt)) == -1)
- {
- perror_with_name ("FEL! write:");
- }
- es1800_cnt -= cc;
- if (es1800_cnt && cc)
- {
- for (i = 0; i < es1800_cnt; i++)
- {
- es1800_buf[i] = es1800_buf[cc + i];
- }
- }
- }
- else if (errno != EWOULDBLOCK)
- {
- perror_with_name ("FEL! read:");
- }
-
- cc = read (deprecated_serial_fd (es1800_desc), inputbuf, inputcnt);
- if (cc != -1)
- {
- for (i = 0; i < cc;)
- {
- consolebuf[consolecnt++] = inputbuf[i++];
- }
- if ((cc = write (console, consolebuf, consolecnt)) == -1)
- {
- perror_with_name ("FEL! write:");
- }
- consolecnt -= cc;
- if (consolecnt && cc)
- {
- for (i = 0; i < consolecnt; i++)
- {
- consolebuf[i] = consolebuf[cc + i];
- }
- }
- }
- else if (errno != EWOULDBLOCK)
- {
- perror_with_name ("FEL! read:");
- }
- }
-
- console_fc_save = console_fc_save & !FNDELAY;
- if (fcntl (console, F_SETFL, console_fc_save) == -1)
- {
- perror_with_name ("FEL! fcntl");
- }
-
- if (ioctl (console, TIOCSETP, &console_mode_save))
- {
- perror_with_name ("FEL! ioctl");
- }
-
- close (console);
-
- if (fcntl (deprecated_serial_fd (es1800_desc), F_SETFL, es1800_fc_save) == -1)
- {
- perror_with_name ("FEL! fcntl");
- }
-
- printf ("\n");
-
-}
-#endif /* PROVIDE_TRANSPARENT */
-
-static void
-es1800_init_break (char *args, int from_tty)
-{
- CORE_ADDR memaddress = 0;
- char buf[PBUFSIZ];
- char base_addr[4];
- char *space_index;
- char *p;
- int k;
-
- if (args == NULL)
- {
- error_no_arg ("a trap vector");
- }
-
- if (!(space_index = strchr (args, ' ')))
- {
- error ("Two arguments needed (trap vector and address of break routine).\n");
- }
-
- *space_index = '\0';
-
- es1800_break_vec = strtol (args, (char **) NULL, 0);
- es1800_break_address = parse_and_eval_address (space_index + 1);
-
- es1800_create_break_insn (es1800_break_insn, es1800_break_vec);
-
- if (m68020)
- {
- send_with_reply ("VBR ", buf, sizeof (buf));
- p = buf;
- for (k = 0; k < 4; k++)
- {
- if ((p[k * 2 + 1] == 0) || (p[k * 2 + 2] == 0))
- {
- error ("Emulator reply is too short: %s", buf);
- }
- base_addr[k] = (fromhex (p[k * 2 + 1]) * 16) + fromhex (p[k * 2 + 2]);
- }
- /* base addr of exception vector table */
- memaddress = *((CORE_ADDR *) base_addr);
- }
-
- memaddress += (es1800_break_vec + 32) * 4; /* address of trap vector */
-
- sprintf (buf, "@.L%lx=$%lx", memaddress, es1800_break_address);
- send_command (buf); /* set the address of the break routine in the */
- /* trap vector */
-
- sprintf (buf, "@.L%lx=$4E714E71", es1800_break_address); /* NOP; NOP */
- send_command (buf);
- sprintf (buf, "@.L%lx=$4E714E73", es1800_break_address + 4); /* NOP; RTE */
- send_command (buf);
-
- sprintf (buf, "AC2=$%lx", es1800_break_address + 4);
- /* breakpoint at es1800-break_address */
- send_command (buf);
- send_command ("WHEN AC2 THEN BRK"); /* ie in exception routine */
-
- if (from_tty)
- {
- printf ("Breakpoint (trap $%x) routine at address: %lx\n",
- es1800_break_vec, es1800_break_address);
- }
-}
-
-static void
-es1800_child_open (char *arg, int from_tty)
-{
- error ("Use the \"run\" command to start a child process.");
-}
-
-static void
-es1800_child_detach (char *args, int from_tty)
-{
- if (args)
- {
- error ("Argument given to \"detach\" when remotely debugging.");
- }
-
- pop_target ();
- if (from_tty)
- {
- printf ("Ending debugging the process %d.\n", PIDGET (inferior_ptid));
- }
-}
-
-
-/* Define the target subroutine names */
-
-struct target_ops es1800_ops;
-
-static void
-init_es1800_ops (void)
-{
- es1800_ops.to_shortname = "es1800";
- es1800_ops.to_longname = "Remote serial target in ES1800-emulator protocol";
- es1800_ops.to_doc = "Remote debugging on the es1800 emulator via a serial line.\n\
-Specify the serial device it is connected to (e.g. /dev/ttya).";
- es1800_ops.to_open = es1800_open;
- es1800_ops.to_close = es1800_close;
- es1800_ops.to_attach = es1800_attach;
- es1800_ops.to_detach = es1800_detach;
- es1800_ops.to_resume = es1800_resume;
- es1800_ops.to_prepare_to_store = es1800_prepare_to_store;
- es1800_ops.to_xfer_memory = es1800_xfer_inferior_memory;
- es1800_ops.to_files_info = es1800_files_info;
- es1800_ops.to_insert_breakpoint = es1800_insert_breakpoint;
- es1800_ops.to_remove_breakpoint = es1800_remove_breakpoint;
- es1800_ops.to_load = es1800_load;
- es1800_ops.to_create_inferior = es1800_create_inferior;
- es1800_ops.to_stratum = core_stratum;
- es1800_ops.to_has_memory = 1;
- es1800_ops.to_magic = OPS_MAGIC;
-}
-
-/* Define the target subroutine names */
-
-struct target_ops es1800_child_ops;
-
-static void
-init_es1800_child_ops (void)
-{
- es1800_child_ops.to_shortname = "es1800_process";
- es1800_child_ops.to_longname = "Remote serial target in ES1800-emulator protocol";
- es1800_child_ops.to_doc = "Remote debugging on the es1800 emulator via a serial line.\n\
-Specify the serial device it is connected to (e.g. /dev/ttya).";
- es1800_child_ops.to_open = es1800_child_open;
- es1800_child_ops.to_attach = es1800_attach;
- es1800_child_ops.to_detach = es1800_child_detach;
- es1800_child_ops.to_resume = es1800_resume;
- es1800_child_ops.to_wait = es1800_wait;
- es1800_child_ops.to_fetch_registers = es1800_fetch_register;
- es1800_child_ops.to_store_registers = es1800_store_register;
- es1800_child_ops.to_prepare_to_store = es1800_prepare_to_store;
- es1800_child_ops.to_xfer_memory = es1800_xfer_inferior_memory;
- es1800_child_ops.to_files_info = es1800_files_info;
- es1800_child_ops.to_insert_breakpoint = es1800_insert_breakpoint;
- es1800_child_ops.to_remove_breakpoint = es1800_remove_breakpoint;
- es1800_child_ops.to_kill = es1800_kill;
- es1800_child_ops.to_load = es1800_load;
- es1800_child_ops.to_create_inferior = es1800_create_inferior;
- es1800_child_ops.to_mourn_inferior = es1800_mourn_inferior;
- es1800_child_ops.to_stratum = process_stratum;
- es1800_child_ops.to_has_all_memory = 1;
- es1800_child_ops.to_has_memory = 1;
- es1800_child_ops.to_has_stack = 1;
- es1800_child_ops.to_has_registers = 1;
- es1800_child_ops.to_has_execution = 1;
- es1800_child_ops.to_magic = OPS_MAGIC;
-}
-
-void
-_initialize_es1800 (void)
-{
- init_es1800_ops ();
- init_es1800_child_ops ();
- add_target (&es1800_ops);
- add_target (&es1800_child_ops);
-#ifdef PROVIDE_TRANSPARENT
- add_com ("transparent", class_support, es1800_transparent,
- "Start transparent communication with the ES 1800 emulator.");
-#endif /* PROVIDE_TRANSPARENT */
- add_com ("init_break", class_support, es1800_init_break,
- "Download break routine and initialize break facility on ES 1800");
-}
projects / binutils-gdb.git / commitdiff