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authorStan Shebs <shebs@codesourcery.com>1999-04-16 01:35:26 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-16 01:35:26 +0000
commitc906108c21474dfb4ed285bcc0ac6fe02cd400cc (patch)
treea0015aa5cedc19ccbab307251353a41722a3ae13 /gdb/remote-nindy.c
parentcd946cff9ede3f30935803403f06f6ed30cad136 (diff)
downloadgdb-c906108c21474dfb4ed285bcc0ac6fe02cd400cc.zip
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Initial creation of sourceware repositorygdb-4_18-branchpoint
Diffstat (limited to 'gdb/remote-nindy.c')
-rw-r--r--gdb/remote-nindy.c852
1 files changed, 852 insertions, 0 deletions
diff --git a/gdb/remote-nindy.c b/gdb/remote-nindy.c
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--- /dev/null
+++ b/gdb/remote-nindy.c
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+/* Memory-access and commands for remote NINDY process, for GDB.
+ Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
+ Contributed by Intel Corporation. Modified from remote.c by Chris Benenati.
+
+GDB is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY. No author or distributor accepts responsibility to anyone
+for the consequences of using it or for whether it serves any
+particular purpose or works at all, unless he says so in writing.
+Refer to the GDB General Public License for full details.
+
+Everyone is granted permission to copy, modify and redistribute GDB,
+but only under the conditions described in the GDB General Public
+License. A copy of this license is supposed to have been given to you
+along with GDB so you can know your rights and responsibilities. It
+should be in a file named COPYING. Among other things, the copyright
+notice and this notice must be preserved on all copies.
+
+In other words, go ahead and share GDB, but don't try to stop
+anyone else from sharing it farther. Help stamp out software hoarding!
+*/
+
+/*
+Except for the data cache routines, this file bears little resemblence
+to remote.c. A new (although similar) protocol has been specified, and
+portions of the code are entirely dependent on having an i80960 with a
+NINDY ROM monitor at the other end of the line.
+*/
+
+/*****************************************************************************
+ *
+ * REMOTE COMMUNICATION PROTOCOL BETWEEN GDB960 AND THE NINDY ROM MONITOR.
+ *
+ *
+ * MODES OF OPERATION
+ * ----- -- ---------
+ *
+ * As far as NINDY is concerned, GDB is always in one of two modes: command
+ * mode or passthrough mode.
+ *
+ * In command mode (the default) pre-defined packets containing requests
+ * are sent by GDB to NINDY. NINDY never talks except in reponse to a request.
+ *
+ * Once the the user program is started, GDB enters passthrough mode, to give
+ * the user program access to the terminal. GDB remains in this mode until
+ * NINDY indicates that the program has stopped.
+ *
+ *
+ * PASSTHROUGH MODE
+ * ----------- ----
+ *
+ * GDB writes all input received from the keyboard directly to NINDY, and writes
+ * all characters received from NINDY directly to the monitor.
+ *
+ * Keyboard input is neither buffered nor echoed to the monitor.
+ *
+ * GDB remains in passthrough mode until NINDY sends a single ^P character,
+ * to indicate that the user process has stopped.
+ *
+ * Note:
+ * GDB assumes NINDY performs a 'flushreg' when the user program stops.
+ *
+ *
+ * COMMAND MODE
+ * ------- ----
+ *
+ * All info (except for message ack and nak) is transferred between gdb
+ * and the remote processor in messages of the following format:
+ *
+ * <info>#<checksum>
+ *
+ * where
+ * # is a literal character
+ *
+ * <info> ASCII information; all numeric information is in the
+ * form of hex digits ('0'-'9' and lowercase 'a'-'f').
+ *
+ * <checksum>
+ * is a pair of ASCII hex digits representing an 8-bit
+ * checksum formed by adding together each of the
+ * characters in <info>.
+ *
+ * The receiver of a message always sends a single character to the sender
+ * to indicate that the checksum was good ('+') or bad ('-'); the sender
+ * re-transmits the entire message over until a '+' is received.
+ *
+ * In response to a command NINDY always sends back either data or
+ * a result code of the form "Xnn", where "nn" are hex digits and "X00"
+ * means no errors. (Exceptions: the "s" and "c" commands don't respond.)
+ *
+ * SEE THE HEADER OF THE FILE "gdb.c" IN THE NINDY MONITOR SOURCE CODE FOR A
+ * FULL DESCRIPTION OF LEGAL COMMANDS.
+ *
+ * SEE THE FILE "stop.h" IN THE NINDY MONITOR SOURCE CODE FOR A LIST
+ * OF STOP CODES.
+ *
+ ***************************************************************************/
+
+#include "defs.h"
+#include <signal.h>
+#include <sys/types.h>
+#include <setjmp.h>
+
+#include "frame.h"
+#include "inferior.h"
+#include "bfd.h"
+#include "symfile.h"
+#include "target.h"
+#include "gdbcore.h"
+#include "command.h"
+#include "floatformat.h"
+
+#include "wait.h"
+#include <sys/file.h>
+#include <ctype.h>
+#include "serial.h"
+#include "nindy-share/env.h"
+#include "nindy-share/stop.h"
+
+#include "dcache.h"
+#include "remote-utils.h"
+
+static DCACHE *nindy_dcache;
+
+extern int unlink();
+extern char *getenv();
+extern char *mktemp();
+
+extern void generic_mourn_inferior ();
+
+extern struct target_ops nindy_ops;
+extern FILE *instream;
+
+extern char ninStopWhy ();
+extern int ninMemGet ();
+extern int ninMemPut ();
+
+int nindy_initial_brk; /* nonzero if want to send an initial BREAK to nindy */
+int nindy_old_protocol; /* nonzero if want to use old protocol */
+char *nindy_ttyname; /* name of tty to talk to nindy on, or null */
+
+#define DLE '\020' /* Character NINDY sends to indicate user program has
+ * halted. */
+#define TRUE 1
+#define FALSE 0
+
+/* From nindy-share/nindy.c. */
+extern serial_t nindy_serial;
+
+static int have_regs = 0; /* 1 iff regs read since i960 last halted */
+static int regs_changed = 0; /* 1 iff regs were modified since last read */
+
+extern char *exists();
+
+static void
+nindy_fetch_registers PARAMS ((int));
+
+static void
+nindy_store_registers PARAMS ((int));
+
+static char *savename;
+
+static void
+nindy_close (quitting)
+ int quitting;
+{
+ if (nindy_serial != NULL)
+ SERIAL_CLOSE (nindy_serial);
+ nindy_serial = NULL;
+
+ if (savename)
+ free (savename);
+ savename = 0;
+}
+
+/* Open a connection to a remote debugger.
+ FIXME, there should be "set" commands for the options that are
+ now specified with gdb command-line options (old_protocol,
+ and initial_brk). */
+void
+nindy_open (name, from_tty)
+ char *name; /* "/dev/ttyXX", "ttyXX", or "XX": tty to be opened */
+ int from_tty;
+{
+ char baudrate[1024];
+
+ if (!name)
+ error_no_arg ("serial port device name");
+
+ target_preopen (from_tty);
+
+ nindy_close (0);
+
+ have_regs = regs_changed = 0;
+ nindy_dcache = dcache_init(ninMemGet, ninMemPut);
+
+ /* Allow user to interrupt the following -- we could hang if there's
+ no NINDY at the other end of the remote tty. */
+ immediate_quit++;
+ /* If baud_rate is -1, then ninConnect will not recognize the baud rate
+ and will deal with the situation in a (more or less) reasonable
+ fashion. */
+ sprintf(baudrate, "%d", baud_rate);
+ ninConnect(name, baudrate,
+ nindy_initial_brk, !from_tty, nindy_old_protocol);
+ immediate_quit--;
+
+ if (nindy_serial == NULL)
+ {
+ perror_with_name (name);
+ }
+
+ savename = savestring (name, strlen (name));
+ push_target (&nindy_ops);
+
+ target_fetch_registers(-1);
+
+ init_thread_list ();
+ init_wait_for_inferior ();
+ clear_proceed_status ();
+ normal_stop ();
+}
+
+/* User-initiated quit of nindy operations. */
+
+static void
+nindy_detach (name, from_tty)
+ char *name;
+ int from_tty;
+{
+ if (name)
+ error ("Too many arguments");
+ pop_target ();
+}
+
+static void
+nindy_files_info ()
+{
+ /* FIXME: this lies about the baud rate if we autobauded. */
+ printf_unfiltered("\tAttached to %s at %d bits per second%s%s.\n", savename,
+ baud_rate,
+ nindy_old_protocol? " in old protocol": "",
+ nindy_initial_brk? " with initial break": "");
+}
+
+/* Return the number of characters in the buffer before
+ the first DLE character. */
+
+static
+int
+non_dle( buf, n )
+ char *buf; /* Character buffer; NOT '\0'-terminated */
+ int n; /* Number of characters in buffer */
+{
+ int i;
+
+ for ( i = 0; i < n; i++ ){
+ if ( buf[i] == DLE ){
+ break;
+ }
+ }
+ return i;
+}
+
+/* Tell the remote machine to resume. */
+
+void
+nindy_resume (pid, step, siggnal)
+ int pid, step;
+ enum target_signal siggnal;
+{
+ if (siggnal != TARGET_SIGNAL_0 && siggnal != stop_signal)
+ warning ("Can't send signals to remote NINDY targets.");
+
+ dcache_flush(nindy_dcache);
+ if ( regs_changed )
+ {
+ nindy_store_registers (-1);
+ regs_changed = 0;
+ }
+ have_regs = 0;
+ ninGo( step );
+}
+
+/* FIXME, we can probably use the normal terminal_inferior stuff here.
+ We have to do terminal_inferior and then set up the passthrough
+ settings initially. Thereafter, terminal_ours and terminal_inferior
+ will automatically swap the settings around for us. */
+
+struct clean_up_tty_args {
+ serial_ttystate state;
+ serial_t serial;
+};
+static struct clean_up_tty_args tty_args;
+
+static void
+clean_up_tty (ptrarg)
+ PTR ptrarg;
+{
+ struct clean_up_tty_args *args = (struct clean_up_tty_args *) ptrarg;
+ SERIAL_SET_TTY_STATE (args->serial, args->state);
+ free (args->state);
+ warning ("\n\nYou may need to reset the 80960 and/or reload your program.\n");
+}
+
+/* Recover from ^Z or ^C while remote process is running */
+static void (*old_ctrlc)();
+#ifdef SIGTSTP
+static void (*old_ctrlz)();
+#endif
+
+static void
+clean_up_int()
+{
+ SERIAL_SET_TTY_STATE (tty_args.serial, tty_args.state);
+ free (tty_args.state);
+
+ signal(SIGINT, old_ctrlc);
+#ifdef SIGTSTP
+ signal(SIGTSTP, old_ctrlz);
+#endif
+ error("\n\nYou may need to reset the 80960 and/or reload your program.\n");
+}
+
+/* Wait until the remote machine stops. While waiting, operate in passthrough
+ * mode; i.e., pass everything NINDY sends to gdb_stdout, and everything from
+ * stdin to NINDY.
+ *
+ * Return to caller, storing status in 'status' just as `wait' would.
+ */
+
+static int
+nindy_wait( pid, status )
+ int pid;
+ struct target_waitstatus *status;
+{
+ fd_set fds;
+ int c;
+ char buf[2];
+ int i, n;
+ unsigned char stop_exit;
+ unsigned char stop_code;
+ struct cleanup *old_cleanups;
+ long ip_value, fp_value, sp_value; /* Reg values from stop */
+
+ status->kind = TARGET_WAITKIND_EXITED;
+ status->value.integer = 0;
+
+ /* OPERATE IN PASSTHROUGH MODE UNTIL NINDY SENDS A DLE CHARACTER */
+
+ /* Save current tty attributes, and restore them when done. */
+ tty_args.serial = SERIAL_FDOPEN (0);
+ tty_args.state = SERIAL_GET_TTY_STATE (tty_args.serial);
+ old_ctrlc = signal( SIGINT, clean_up_int );
+#ifdef SIGTSTP
+ old_ctrlz = signal( SIGTSTP, clean_up_int );
+#endif
+
+ old_cleanups = make_cleanup (clean_up_tty, &tty_args);
+
+ /* Pass input from keyboard to NINDY as it arrives. NINDY will interpret
+ <CR> and perform echo. */
+ /* This used to set CBREAK and clear ECHO and CRMOD. I hope this is close
+ enough. */
+ SERIAL_RAW (tty_args.serial);
+
+ while (1)
+ {
+ /* Input on remote */
+ c = SERIAL_READCHAR (nindy_serial, -1);
+ if (c == SERIAL_ERROR)
+ {
+ error ("Cannot read from serial line");
+ }
+ else if (c == 0x1b) /* ESC */
+ {
+ c = SERIAL_READCHAR (nindy_serial, -1);
+ c &= ~0x40;
+ }
+ else if (c != 0x10) /* DLE */
+ /* Write out any characters preceding DLE */
+ {
+ buf[0] = (char)c;
+ write (1, buf, 1);
+ }
+ else
+ {
+ stop_exit = ninStopWhy(&stop_code,
+ &ip_value, &fp_value, &sp_value);
+ if (!stop_exit && (stop_code == STOP_SRQ))
+ {
+ immediate_quit++;
+ ninSrq();
+ immediate_quit--;
+ }
+ else
+ {
+ /* Get out of loop */
+ supply_register (IP_REGNUM,
+ (char *)&ip_value);
+ supply_register (FP_REGNUM,
+ (char *)&fp_value);
+ supply_register (SP_REGNUM,
+ (char *)&sp_value);
+ break;
+ }
+ }
+ }
+
+ SERIAL_SET_TTY_STATE (tty_args.serial, tty_args.state);
+ free (tty_args.state);
+ discard_cleanups (old_cleanups);
+
+ if (stop_exit)
+ {
+ status->kind = TARGET_WAITKIND_EXITED;
+ status->value.integer = stop_code;
+ }
+ else
+ {
+ /* nindy has some special stop code need to be handled */
+ if (stop_code == STOP_GDB_BPT)
+ stop_code = TRACE_STEP;
+ status->kind = TARGET_WAITKIND_STOPPED;
+ status->value.sig = i960_fault_to_signal (stop_code);
+ }
+ return inferior_pid;
+}
+
+/* Read the remote registers into the block REGS. */
+
+/* This is the block that ninRegsGet and ninRegsPut handles. */
+struct nindy_regs {
+ char local_regs[16 * 4];
+ char global_regs[16 * 4];
+ char pcw_acw[2 * 4];
+ char ip[4];
+ char tcw[4];
+ char fp_as_double[4 * 8];
+};
+
+static void
+nindy_fetch_registers(regno)
+ int regno;
+{
+ struct nindy_regs nindy_regs;
+ int regnum;
+
+ immediate_quit++;
+ ninRegsGet( (char *) &nindy_regs );
+ immediate_quit--;
+
+ memcpy (&registers[REGISTER_BYTE (R0_REGNUM)], nindy_regs.local_regs, 16*4);
+ memcpy (&registers[REGISTER_BYTE (G0_REGNUM)], nindy_regs.global_regs, 16*4);
+ memcpy (&registers[REGISTER_BYTE (PCW_REGNUM)], nindy_regs.pcw_acw, 2*4);
+ memcpy (&registers[REGISTER_BYTE (IP_REGNUM)], nindy_regs.ip, 1*4);
+ memcpy (&registers[REGISTER_BYTE (TCW_REGNUM)], nindy_regs.tcw, 1*4);
+ memcpy (&registers[REGISTER_BYTE (FP0_REGNUM)], nindy_regs.fp_as_double, 4 * 8);
+
+ registers_fetched ();
+}
+
+static void
+nindy_prepare_to_store()
+{
+ /* Fetch all regs if they aren't already here. */
+ read_register_bytes (0, NULL, REGISTER_BYTES);
+}
+
+static void
+nindy_store_registers(regno)
+ int regno;
+{
+ struct nindy_regs nindy_regs;
+ int regnum;
+
+ memcpy (nindy_regs.local_regs, &registers[REGISTER_BYTE (R0_REGNUM)], 16*4);
+ memcpy (nindy_regs.global_regs, &registers[REGISTER_BYTE (G0_REGNUM)], 16*4);
+ memcpy (nindy_regs.pcw_acw, &registers[REGISTER_BYTE (PCW_REGNUM)], 2*4);
+ memcpy (nindy_regs.ip, &registers[REGISTER_BYTE (IP_REGNUM)], 1*4);
+ memcpy (nindy_regs.tcw, &registers[REGISTER_BYTE (TCW_REGNUM)], 1*4);
+ memcpy (nindy_regs.fp_as_double, &registers[REGISTER_BYTE (FP0_REGNUM)], 8*4);
+
+ immediate_quit++;
+ ninRegsPut( (char *) &nindy_regs );
+ immediate_quit--;
+}
+
+/* Read a word from remote address ADDR and return it.
+ * This goes through the data cache.
+ */
+int
+nindy_fetch_word (addr)
+ CORE_ADDR addr;
+{
+ return dcache_fetch (nindy_dcache, addr);
+}
+
+/* Write a word WORD into remote address ADDR.
+ This goes through the data cache. */
+
+void
+nindy_store_word (addr, word)
+ CORE_ADDR addr;
+ int word;
+{
+ dcache_poke (nindy_dcache, addr, word);
+}
+
+/* Copy LEN bytes to or from inferior's memory starting at MEMADDR
+ to debugger memory starting at MYADDR. Copy to inferior if
+ WRITE is nonzero. Returns the length copied.
+
+ This is stolen almost directly from infptrace.c's child_xfer_memory,
+ which also deals with a word-oriented memory interface. Sometime,
+ FIXME, rewrite this to not use the word-oriented routines. */
+
+int
+nindy_xfer_inferior_memory(memaddr, myaddr, len, should_write, target)
+ CORE_ADDR memaddr;
+ char *myaddr;
+ int len;
+ int should_write;
+ struct target_ops *target; /* ignored */
+{
+ register int i;
+ /* Round starting address down to longword boundary. */
+ register CORE_ADDR addr = memaddr & - sizeof (int);
+ /* Round ending address up; get number of longwords that makes. */
+ register int count
+ = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int);
+ /* Allocate buffer of that many longwords. */
+ register int *buffer = (int *) alloca (count * sizeof (int));
+
+ if (should_write)
+ {
+ /* Fill start and end extra bytes of buffer with existing memory data. */
+
+ if (addr != memaddr || len < (int)sizeof (int)) {
+ /* Need part of initial word -- fetch it. */
+ buffer[0] = nindy_fetch_word (addr);
+ }
+
+ if (count > 1) /* FIXME, avoid if even boundary */
+ {
+ buffer[count - 1]
+ = nindy_fetch_word (addr + (count - 1) * sizeof (int));
+ }
+
+ /* Copy data to be written over corresponding part of buffer */
+
+ memcpy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len);
+
+ /* Write the entire buffer. */
+
+ for (i = 0; i < count; i++, addr += sizeof (int))
+ {
+ errno = 0;
+ nindy_store_word (addr, buffer[i]);
+ if (errno)
+ return 0;
+ }
+ }
+ else
+ {
+ /* Read all the longwords */
+ for (i = 0; i < count; i++, addr += sizeof (int))
+ {
+ errno = 0;
+ buffer[i] = nindy_fetch_word (addr);
+ if (errno)
+ return 0;
+ QUIT;
+ }
+
+ /* Copy appropriate bytes out of the buffer. */
+ memcpy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len);
+ }
+ return len;
+}
+
+static void
+nindy_create_inferior (execfile, args, env)
+ char *execfile;
+ char *args;
+ char **env;
+{
+ int entry_pt;
+ int pid;
+
+ if (args && *args)
+ error ("Can't pass arguments to remote NINDY process");
+
+ if (execfile == 0 || exec_bfd == 0)
+ error ("No executable file specified");
+
+ entry_pt = (int) bfd_get_start_address (exec_bfd);
+
+ pid = 42;
+
+ /* 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 ();
+
+ /* insert_step_breakpoint (); FIXME, do we need this? */
+ /* Let 'er rip... */
+ proceed ((CORE_ADDR)entry_pt, TARGET_SIGNAL_DEFAULT, 0);
+}
+
+static void
+reset_command(args, from_tty)
+ char *args;
+ int from_tty;
+{
+ if (nindy_serial == NULL)
+ {
+ error( "No target system to reset -- use 'target nindy' command.");
+ }
+ if ( query("Really reset the target system?",0,0) )
+ {
+ SERIAL_SEND_BREAK (nindy_serial);
+ tty_flush (nindy_serial);
+ }
+}
+
+void
+nindy_kill (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ return; /* Ignore attempts to kill target system */
+}
+
+/* Clean up when a program exits.
+
+ The program actually lives on in the remote processor's RAM, and may be
+ run again without a download. Don't leave it full of breakpoint
+ instructions. */
+
+void
+nindy_mourn_inferior ()
+{
+ remove_breakpoints ();
+ unpush_target (&nindy_ops);
+ generic_mourn_inferior (); /* Do all the proper things now */
+}
+
+/* Pass the args the way catch_errors wants them. */
+static int
+nindy_open_stub (arg)
+ char *arg;
+{
+ nindy_open (arg, 1);
+ return 1;
+}
+
+static void
+nindy_load( filename, from_tty )
+ char *filename;
+ int from_tty;
+{
+ asection *s;
+ /* Can't do unix style forking on a VMS system, so we'll use bfd to do
+ all the work for us
+ */
+
+ bfd *file = bfd_openr(filename,0);
+ if (!file)
+ {
+ perror_with_name(filename);
+ return;
+ }
+
+ if (!bfd_check_format(file, bfd_object))
+ {
+ error("can't prove it's an object file\n");
+ return;
+ }
+
+ for ( s = file->sections; s; s=s->next)
+ {
+ if (s->flags & SEC_LOAD)
+ {
+ char *buffer = xmalloc(s->_raw_size);
+ bfd_get_section_contents(file, s, buffer, 0, s->_raw_size);
+ printf("Loading section %s, size %x vma %x\n",
+ s->name,
+ s->_raw_size,
+ s->vma);
+ ninMemPut(s->vma, buffer, s->_raw_size);
+ free(buffer);
+ }
+ }
+ bfd_close(file);
+}
+
+static int
+load_stub (arg)
+ char *arg;
+{
+ target_load (arg, 1);
+ return 1;
+}
+
+/* This routine is run as a hook, just before the main command loop is
+ entered. If gdb is configured for the i960, but has not had its
+ nindy target specified yet, this will loop prompting the user to do so.
+
+ Unlike the loop provided by Intel, we actually let the user get out
+ of this with a RETURN. This is useful when e.g. simply examining
+ an i960 object file on the host system. */
+
+void
+nindy_before_main_loop ()
+{
+ char ttyname[100];
+ char *p, *p2;
+
+ while (target_stack->target_ops != &nindy_ops) /* What is this crap??? */
+ { /* remote tty not specified yet */
+ if ( instream == stdin ){
+ printf_unfiltered("\nAttach /dev/ttyNN -- specify NN, or \"quit\" to quit: ");
+ gdb_flush( gdb_stdout );
+ }
+ fgets( ttyname, sizeof(ttyname)-1, stdin );
+
+ /* Strip leading and trailing whitespace */
+ for ( p = ttyname; isspace(*p); p++ ){
+ ;
+ }
+ if ( *p == '\0' ){
+ return; /* User just hit spaces or return, wants out */
+ }
+ for ( p2= p; !isspace(*p2) && (*p2 != '\0'); p2++ ){
+ ;
+ }
+ *p2= '\0';
+ if ( STREQ("quit",p) ){
+ exit(1);
+ }
+
+ if (catch_errors (nindy_open_stub, p, "", RETURN_MASK_ALL))
+ {
+ /* Now that we have a tty open for talking to the remote machine,
+ download the executable file if one was specified. */
+ if (exec_bfd)
+ {
+ catch_errors (load_stub, bfd_get_filename (exec_bfd), "",
+ RETURN_MASK_ALL);
+ }
+ }
+ }
+}
+
+/* Define the target subroutine names */
+
+struct target_ops nindy_ops ;
+
+static void
+init_nindy_ops(void)
+{
+ nindy_ops.to_shortname = "nindy"; "Remote serial target in i960 NINDY-specific protocol",
+ nindy_ops.to_longname = "Use a remote i960 system running NINDY connected by a serial line.\n\
+Specify the name of the device the serial line is connected to.\n\
+The speed (baud rate), whether to use the old NINDY protocol,\n\
+and whether to send a break on startup, are controlled by options\n\
+specified when you started GDB." ;
+ nindy_ops.to_doc = "";
+ nindy_ops.to_open = nindy_open;
+ nindy_ops.to_close = nindy_close;
+ nindy_ops.to_attach = 0;
+ nindy_ops.to_post_attach = NULL;
+ nindy_ops.to_require_attach = NULL;
+ nindy_ops.to_detach = nindy_detach;
+ nindy_ops.to_require_detach = NULL;
+ nindy_ops.to_resume = nindy_resume;
+ nindy_ops.to_wait = nindy_wait;
+ nindy_ops.to_post_wait = NULL;
+ nindy_ops.to_fetch_registers = nindy_fetch_registers;
+ nindy_ops.to_store_registers = nindy_store_registers;
+ nindy_ops.to_prepare_to_store = nindy_prepare_to_store;
+ nindy_ops.to_xfer_memory = nindy_xfer_inferior_memory;
+ nindy_ops.to_files_info = nindy_files_info;
+ nindy_ops.to_insert_breakpoint = memory_insert_breakpoint;
+ nindy_ops.to_remove_breakpoint = memory_remove_breakpoint;
+ nindy_ops.to_terminal_init = 0;
+ nindy_ops.to_terminal_inferior = 0;
+ nindy_ops.to_terminal_ours_for_output = 0;
+ nindy_ops.to_terminal_ours = 0;
+ nindy_ops.to_terminal_info = 0; /* Terminal crud */
+ nindy_ops.to_kill = nindy_kill;
+ nindy_ops.to_load = nindy_load;
+ nindy_ops.to_lookup_symbol = 0; /* lookup_symbol */
+ nindy_ops.to_create_inferior = nindy_create_inferior;
+ nindy_ops.to_post_startup_inferior = NULL;
+ nindy_ops.to_acknowledge_created_inferior = NULL;
+ nindy_ops.to_clone_and_follow_inferior = NULL;
+ nindy_ops.to_post_follow_inferior_by_clone = NULL;
+ nindy_ops.to_insert_fork_catchpoint = NULL;
+ nindy_ops.to_remove_fork_catchpoint = NULL;
+ nindy_ops.to_insert_vfork_catchpoint = NULL;
+ nindy_ops.to_remove_vfork_catchpoint = NULL;
+ nindy_ops.to_has_forked = NULL;
+ nindy_ops.to_has_vforked = NULL;
+ nindy_ops.to_can_follow_vfork_prior_to_exec = NULL;
+ nindy_ops.to_post_follow_vfork = NULL;
+ nindy_ops.to_insert_exec_catchpoint = NULL;
+ nindy_ops.to_remove_exec_catchpoint = NULL;
+ nindy_ops.to_has_execd = NULL;
+ nindy_ops.to_reported_exec_events_per_exec_call = NULL;
+ nindy_ops.to_has_exited = NULL;
+ nindy_ops.to_mourn_inferior = nindy_mourn_inferior;
+ nindy_ops.to_can_run = 0; /* can_run */
+ nindy_ops.to_notice_signals = 0; /* notice_signals */
+ nindy_ops.to_thread_alive = 0; /* to_thread_alive */
+ nindy_ops.to_stop = 0; /* to_stop */
+ nindy_ops.to_pid_to_exec_file = NULL;
+ nindy_ops.to_core_file_to_sym_file = NULL;
+ nindy_ops.to_stratum = process_stratum;
+ nindy_ops.DONT_USE = 0; /* next */
+ nindy_ops.to_has_all_memory = 1;
+ nindy_ops.to_has_memory = 1;
+ nindy_ops.to_has_stack = 1;
+ nindy_ops.to_has_registers = 1;
+ nindy_ops.to_has_execution = 1; /* all mem, mem, stack, regs, exec */
+ nindy_ops.to_sections = 0;
+ nindy_ops.to_sections_end = 0; /* Section pointers */
+ nindy_ops.to_magic = OPS_MAGIC; /* Always the last thing */
+}
+
+void
+_initialize_nindy ()
+{
+ init_nindy_ops() ;
+ add_target (&nindy_ops);
+ add_com ("reset", class_obscure, reset_command,
+ "Send a 'break' to the remote target system.\n\
+Only useful if the target has been equipped with a circuit\n\
+to perform a hard reset when a break is detected.");
+}