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Diffstat (limited to 'gdb/remote-es.c')
| -rw-r--r-- | gdb/remote-es.c | 2202 |
1 files changed, 2202 insertions, 0 deletions
diff --git a/gdb/remote-es.c b/gdb/remote-es.c new file mode 100644 index 00000000000..d26e85b7890 --- /dev/null +++ b/gdb/remote-es.c @@ -0,0 +1,2202 @@ +/* Memory-access and commands for remote es1800 processes, for GDB. + Copyright (C) 1988, 1992 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 "wait.h" +#include "command.h" +#include "remote-utils.h" +#include "gdbcore.h" +#include "serial.h" + +/* Prototypes for local functions */ + +static void +es1800_child_detach PARAMS ((char *, int)); + +static void +es1800_child_open PARAMS ((char *, int)); + +static void +es1800_transparent PARAMS ((char *, int)); + +static void +es1800_create_inferior PARAMS ((char *, char *, char **)); + +static void +es1800_load PARAMS ((char *, int)); + +static void +es1800_kill PARAMS ((void)); + +static int +verify_break PARAMS ((int)); + +static int +es1800_remove_breakpoint PARAMS ((CORE_ADDR, char *)); + +static int +es1800_insert_breakpoint PARAMS ((CORE_ADDR, char *)); + +static void +es1800_files_info PARAMS ((struct target_ops *)); + +static int +es1800_xfer_inferior_memory PARAMS ((CORE_ADDR, char *, int, int, + struct target_ops *)); + +static void +es1800_prepare_to_store PARAMS ((void)); + +static int es1800_wait PARAMS ((int, struct target_waitstatus *)); + +static void es1800_resume PARAMS ((int, int, enum target_signal)); + +static void +es1800_detach PARAMS ((char *, int)); + +static void +es1800_attach PARAMS ((char *, int)); + +static int +damn_b PARAMS ((char *)); + +static void +es1800_open PARAMS ((char *, int)); + +static void +es1800_timer PARAMS ((void)); + +static void +es1800_reset PARAMS ((char *)); + +static void +es1800_request_quit PARAMS ((void)); + +static int +readchar PARAMS ((void)); + +static void +expect PARAMS ((char *, int)); + +static void +expect_prompt PARAMS ((void)); + +static void +download PARAMS ((FILE *, int, int)); + +#if 0 +static void +bfd_copy PARAMS ((bfd *, bfd *)); +#endif + +static void +get_break_addr PARAMS ((int, CORE_ADDR *)); + +static int +fromhex PARAMS ((int)); + +static int +tohex PARAMS ((int)); + +static void +es1800_close PARAMS ((int)); + +static void +es1800_fetch_registers PARAMS ((void)); + +static void +es1800_fetch_register PARAMS ((int)); + +static void +es1800_store_register PARAMS ((int)); + +static void +es1800_read_bytes PARAMS ((CORE_ADDR, char *, int)); + +static void +es1800_write_bytes PARAMS ((CORE_ADDR, char *, int)); + +static void +send_with_reply PARAMS ((char *, char *, int)); + +static void +send_command PARAMS ((char *)); + +static void +send PARAMS ((char *)); + +static void +getmessage PARAMS ((char *, int)); + +static void +es1800_mourn_inferior PARAMS ((void)); + +static void +es1800_create_break_insn PARAMS ((char *, int)); + +static void +es1800_init_break PARAMS ((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 serial_t 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 () +{ + /* 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 (quit) + 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 (name, from_tty) + 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 (es1800_desc->fd, F_GETFL, 0)) == -1) + { + perror_with_name ("fcntl serial"); + } + es1800_fc_save = fcflag; + + fcflag = (fcflag & (FREAD | FWRITE)); /* mask out any funny stuff */ + if (fcntl (es1800_desc->fd, 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 (quitting) + 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 (es1800_desc->fd, F_SETFL, es1800_fc_save); + SERIAL_CLOSE (es1800_desc); + es1800_desc = NULL; + } + if (savename != NULL) + { + free (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 (args, from_tty) + 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 (args, from_tty) + 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 (pid, step, siggnal) + int pid; + 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 int +es1800_wait (pid, status) + int pid; + 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 (0); +} + + +/* Fetch register values from remote machine. + regno - the register to be fetched (fetch all registers if -1) */ + +static void +es1800_fetch_register (regno) + 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); + } + 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 () +{ + 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); + } + 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); + } + 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); + } + 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); + } + 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); + } + 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); + } + 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); + } + 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); + } + 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(regno) + 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 *) 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 () +{ + /* Do nothing, since we can store individual regs */ +} + +/* Convert hex digit A to a number. */ + +static int +fromhex (a) + 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 (nib) + 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 */ + +static int +es1800_xfer_inferior_memory (memaddr, myaddr, len, write, tops) + CORE_ADDR memaddr; + char *myaddr; + int len; + int write; + struct target_ops *tops; /* Unused */ +{ + 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 (memaddr, myaddr, len) + 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 (memaddr, myaddr, len) + 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) + { + abort (); + } + + 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]); + } +} + +/* Information about the current target */ + +static void +es1800_files_info (tops) + struct target_ops *tops; /* Unused */ +{ + 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 (addr, contents_cache) + 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 (addr, contents_cache) + 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 (ins, vec) + 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 (vec) + 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 breakpint routine + vec - trap vector used for breakpoints + addrp - store the address here */ + +static void +get_break_addr (vec, addrp) + 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 () +{ + if (inferior_pid != 0) + { + inferior_pid = 0; + 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 (filename, from_tty) + 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 (free, 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_pid = 0; + 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_command (filename, from_tty); /* reading symbol table */ + immediate_quit--; +} + +#if 0 + +#define NUMCPYBYTES 20 + +static void +bfd_copy (from_bfd, to_bfd) + 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, (PTR) buf, (file_ptr) i, + (bfd_size_type) NUMCPYBYTES)) + { + error ("bfd_get_section_contents\n"); + } + if (!bfd_set_section_contents (to_bfd, new, (PTR) buf, (file_ptr) i, + (bfd_size_type) NUMCPYBYTES)) + { + error ("bfd_set_section_contents\n"); + } + } + bfd_get_section_contents (from_bfd, p, (PTR) buf, (file_ptr) i, + (bfd_size_type) (p->_cooked_size - i)); + bfd_set_section_contents (to_bfd, new, (PTR) buf,(file_ptr) i, + (bfd_size_type) (p->_cooked_size - i)); + } +} + +#endif + +/* Start an process on the es1800 and set inferior_pid 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 (execfile, args, env) + 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_pid = 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 () +{ + 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 (string, nowait) + 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 () +{ + expect (">", 0); +} + + +/* Read one character */ + +#ifdef DEBUG_STDIN + +/* read from stdin */ + +static int +readchar () +{ + 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 () +{ + 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 (string, buf, len) + char *string, *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 (string) + 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 (string) + char *string; +{ + if (kiodebug) + { + fprintf (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 (buf, len) + 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 (stderr,"message received :%s\n", buf); + } +} + +static void +download (instream, from_tty, format) +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 (args, from_tty) + 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 (es1800_desc->fd, F_GETFL, 0)) == -1) + { + perror_with_name ("fcntl serial"); + } + + es1800_fc_save = fcflag; + fcflag = fcflag | FNDELAY; + + if (fcntl (es1800_desc->fd, 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 (es1800_desc->fd,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 (es1800_desc->fd, F_SETFL, es1800_fc_save) == -1) + { + perror_with_name ("FEL! fcntl"); + } + + printf ("\n"); + +} +#endif /* PROVIDE_TRANSPARENT */ + +static void +es1800_init_break (args, from_tty) + 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 (arg, from_tty) + char *arg; + int from_tty; +{ + error ("Use the \"run\" command to start a child process."); +} + +static void +es1800_child_detach (args, from_tty) + 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", inferior_pid); + } +} + + +/* 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_post_attach = NULL; + es1800_ops.to_require_attach = NULL; + es1800_ops.to_detach = es1800_detach; + es1800_ops.to_require_detach = NULL; + es1800_ops.to_resume = es1800_resume; + es1800_ops.to_wait = NULL; + es1800_ops.to_post_wait = NULL; + es1800_ops.to_fetch_registers = NULL; + es1800_ops.to_store_registers = NULL; + 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_terminal_init = NULL; + es1800_ops.to_terminal_inferior = NULL; + es1800_ops.to_terminal_ours_for_output = NULL; + es1800_ops.to_terminal_ours = NULL; + es1800_ops.to_terminal_info = NULL; + es1800_ops.to_kill = NULL; + es1800_ops.to_load = es1800_load; + es1800_ops.to_lookup_symbol = NULL; + es1800_ops.to_create_inferior = es1800_create_inferior; + es1800_ops.to_post_startup_inferior = NULL; + es1800_ops.to_acknowledge_created_inferior = NULL; + es1800_ops.to_clone_and_follow_inferior = NULL; + es1800_ops.to_post_follow_inferior_by_clone = NULL; + es1800_ops.to_insert_fork_catchpoint = NULL; + es1800_ops.to_remove_fork_catchpoint = NULL; + es1800_ops.to_insert_vfork_catchpoint = NULL; + es1800_ops.to_remove_vfork_catchpoint = NULL; + es1800_ops.to_has_forked = NULL; + es1800_ops.to_has_vforked = NULL; + es1800_ops.to_can_follow_vfork_prior_to_exec = NULL; + es1800_ops.to_post_follow_vfork = NULL; + es1800_ops.to_insert_exec_catchpoint = NULL; + es1800_ops.to_remove_exec_catchpoint = NULL; + es1800_ops.to_has_execd = NULL; + es1800_ops.to_reported_exec_events_per_exec_call = NULL; + es1800_ops.to_has_exited = NULL; + es1800_ops.to_mourn_inferior = NULL; + es1800_ops.to_can_run = 0; + es1800_ops.to_notice_signals = 0; + es1800_ops.to_thread_alive = 0; + es1800_ops.to_stop = 0; + es1800_ops.to_pid_to_exec_file = NULL; + es1800_ops.to_core_file_to_sym_file = NULL; + es1800_ops.to_stratum = core_stratum; + es1800_ops.DONT_USE = 0; + es1800_ops.to_has_all_memory = 0; + es1800_ops.to_has_memory = 1; + es1800_ops.to_has_stack = 0; + es1800_ops.to_has_registers = 0; + es1800_ops.to_has_execution = 0; + es1800_ops.to_sections = NULL; + es1800_ops.to_sections_end = NULL; + 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_close = NULL; + es1800_child_ops.to_attach = es1800_attach; + es1800_child_ops.to_post_attach = NULL; + es1800_child_ops.to_require_attach = NULL; + es1800_child_ops.to_detach = es1800_child_detach; + es1800_child_ops.to_require_detach = NULL; + es1800_child_ops.to_resume = es1800_resume; + es1800_child_ops.to_wait = es1800_wait; + es1800_child_ops.to_post_wait = NULL; + 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_terminal_init = NULL; + es1800_child_ops.to_terminal_inferior = NULL; + es1800_child_ops.to_terminal_ours_for_output = NULL; + es1800_child_ops.to_terminal_ours = NULL; + es1800_child_ops.to_terminal_info = NULL; + es1800_child_ops.to_kill = es1800_kill; + es1800_child_ops.to_load = es1800_load; + es1800_child_ops.to_lookup_symbol = NULL; + es1800_child_ops.to_create_inferior = es1800_create_inferior; + es1800_child_ops.to_post_startup_inferior = NULL; + es1800_child_ops.to_acknowledge_created_inferior = NULL; + es1800_child_ops.to_clone_and_follow_inferior = NULL; + es1800_child_ops.to_post_follow_inferior_by_clone = NULL; + es1800_child_ops.to_insert_fork_catchpoint = NULL; + es1800_child_ops.to_remove_fork_catchpoint = NULL; + es1800_child_ops.to_insert_vfork_catchpoint = NULL; + es1800_child_ops.to_remove_vfork_catchpoint = NULL; + es1800_child_ops.to_has_forked = NULL; + es1800_child_ops.to_has_vforked = NULL; + es1800_child_ops.to_can_follow_vfork_prior_to_exec = NULL; + es1800_child_ops.to_post_follow_vfork = NULL; + es1800_child_ops.to_insert_exec_catchpoint = NULL; + es1800_child_ops.to_remove_exec_catchpoint = NULL; + es1800_child_ops.to_has_execd = NULL; + es1800_child_ops.to_reported_exec_events_per_exec_call = NULL; + es1800_child_ops.to_has_exited = NULL; + es1800_child_ops.to_mourn_inferior = es1800_mourn_inferior; + es1800_child_ops.to_can_run = 0; + es1800_child_ops.to_notice_signals = 0; + es1800_child_ops.to_thread_alive = 0; + es1800_child_ops.to_stop = 0; + es1800_child_ops.to_pid_to_exec_file = NULL; + es1800_child_ops.to_core_file_to_sym_file = NULL; + es1800_child_ops.to_stratum = process_stratum; + es1800_child_ops.DONT_USE = 0; + 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_sections = NULL; + es1800_child_ops.to_sections_end = NULL; + es1800_child_ops.to_magic = OPS_MAGIC; +} + +void +_initialize_es1800 () +{ + 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"); +} |