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!
-*/
+ 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.
-*/
+ 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.
+ */
/*****************************************************************************
*
* SEE THE FILE "stop.h" IN THE NINDY MONITOR SOURCE CODE FOR A LIST
* OF STOP CODES.
*
- ******************************************************************************/
+ ***************************************************************************/
#include "defs.h"
#include <signal.h>
#include "frame.h"
#include "inferior.h"
+#include "bfd.h"
#include "symfile.h"
#include "target.h"
#include "gdbcore.h"
#include "command.h"
-#include "bfd.h"
-#include "ieee-float.h"
+#include "floatformat.h"
-#include "wait.h"
-#include <sys/ioctl.h>
+#include "gdb_wait.h"
#include <sys/file.h>
#include <ctype.h>
-#include "nindy-share/ttycntl.h"
-#include "nindy-share/demux.h"
+#include "serial.h"
#include "nindy-share/env.h"
#include "nindy-share/stop.h"
+#include "remote-utils.h"
-extern int unlink();
-extern char *getenv();
-extern char *mktemp();
+extern int unlink ();
+extern char *getenv ();
+extern char *mktemp ();
extern void generic_mourn_inferior ();
extern struct target_ops nindy_ops;
extern FILE *instream;
-extern struct ext_format ext_format_i960; /* i960-tdep.c */
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 */
+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 DLE '\020' /* Character NINDY sends to indicate user program has
+ * halted. */
#define TRUE 1
#define FALSE 0
-int nindy_fd = 0; /* Descriptor for I/O to NINDY */
+/* 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
-dcache_flush (), dcache_poke (), dcache_init();
-
-static int
-dcache_fetch ();
-
-static void
-nindy_fetch_registers PARAMS ((int));
-
-static void
-nindy_store_registers PARAMS ((int));
-\f
-/* 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. */
-
-/* Restore TTY to normal operation */
-
-static TTY_STRUCT orig_tty; /* TTY attributes before entering passthrough */
-
-static void
-restore_tty()
-{
- ioctl( 0, TIOCSETN, &orig_tty );
-}
-
-
-/* Recover from ^Z or ^C while remote process is running */
-
-static void (*old_ctrlc)(); /* Signal handlers before entering passthrough */
+extern char *exists ();
-#ifdef SIGTSTP
-static void (*old_ctrlz)();
-#endif
+static void nindy_fetch_registers (int);
-static
-#ifdef USG
-void
-#endif
-cleanup()
-{
- restore_tty();
- 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");
-}
+static void nindy_store_registers (int);
\f
-/* Clean up anything that needs cleaning when losing control. */
-
static char *savename;
static void
-nindy_close (quitting)
- int quitting;
+nindy_close (int quitting)
{
- if (nindy_fd)
- close (nindy_fd);
- nindy_fd = 0;
+ if (nindy_serial != NULL)
+ SERIAL_CLOSE (nindy_serial);
+ nindy_serial = NULL;
if (savename)
free (savename);
}
/* Open a connection to a remote debugger.
- FIXME, there should be a way to specify the various options that are
- now specified with gdb command-line options. (baud_rate, old_protocol,
- and initial_brk) */
+ 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;
+nindy_open (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;
- dcache_init();
+ have_regs = regs_changed = 0;
- /* Allow user to interrupt the following -- we could hang if
- * there's no NINDY at the other end of the remote tty.
- */
- immediate_quit++;
- nindy_fd = ninConnect( name, baud_rate? baud_rate: "9600",
- nindy_initial_brk, !from_tty, nindy_old_protocol );
- immediate_quit--;
+ /* 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_fd < 0 ){
- nindy_fd = 0;
- error( "Can't open tty '%s'", name );
- }
+ if (nindy_serial == NULL)
+ {
+ perror_with_name (name);
+ }
+
+ savename = savestring (name, strlen (name));
+ push_target (&nindy_ops);
+
+ target_fetch_registers (-1);
- 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;
+nindy_detach (char *name, int from_tty)
{
if (name)
error ("Too many arguments");
}
static void
-nindy_files_info ()
+nindy_files_info (void)
{
- printf("\tAttached to %s at %s bps%s%s.\n", savename,
- baud_rate? baud_rate: "9600",
- nindy_old_protocol? " in old protocol": "",
- nindy_initial_brk? " with initial break": "");
+ /* 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" : "");
}
\f
-/* Return the number of characters in the buffer before
- the first DLE character. */
+/* Return the number of characters in the buffer BUF before
+ the first DLE character. N is maximum number of characters to
+ consider. */
static
int
-non_dle( buf, n )
- char *buf; /* Character buffer; NOT '\0'-terminated */
- int n; /* Number of characters in buffer */
+non_dle (char *buf, int n)
{
- int i;
+ int i;
- for ( i = 0; i < n; i++ ){
- if ( buf[i] == DLE ){
- break;
- }
+ for (i = 0; i < n; i++)
+ {
+ if (buf[i] == DLE)
+ {
+ break;
}
- return i;
+ }
+ return i;
}
\f
/* Tell the remote machine to resume. */
void
-nindy_resume (step, siggnal)
- int step, siggnal;
+nindy_resume (int pid, int step, enum target_signal siggnal)
{
- if (siggnal != 0 && siggnal != stop_signal)
- error ("Can't send signals to remote NINDY targets.");
+ if (siggnal != TARGET_SIGNAL_0 && siggnal != stop_signal)
+ warning ("Can't send signals to remote NINDY targets.");
- dcache_flush();
- if ( regs_changed ){
- nindy_store_registers (-1);
- regs_changed = 0;
- }
- have_regs = 0;
- ninGo( step );
+ if (regs_changed)
+ {
+ nindy_store_registers (-1);
+ regs_changed = 0;
+ }
+ have_regs = 0;
+ ninGo (step);
}
+\f
+/* 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. */
-/* Wait until the remote machine stops. While waiting, operate in passthrough
- * mode; i.e., pass everything NINDY sends to stdout, and everything from
- * stdin to NINDY.
- *
- * Return to caller, storing status in 'status' just as `wait' would.
- */
-
-static int
-nindy_wait( status )
- WAITTYPE *status;
+struct clean_up_tty_args
{
- DEMUX_DECL; /* OS-dependent data needed by DEMUX... macros */
- char buf[500]; /* FIXME, what is "500" here? */
- int i, n;
- unsigned char stop_exit;
- unsigned char stop_code;
- TTY_STRUCT tty;
- long ip_value, fp_value, sp_value; /* Reg values from stop */
-
-
- WSETEXIT( (*status), 0 );
-
- /* OPERATE IN PASSTHROUGH MODE UNTIL NINDY SENDS A DLE CHARACTER */
-
- /* Save current tty attributes, set up signals to restore them.
- */
- ioctl( 0, TIOCGETP, &orig_tty );
- old_ctrlc = signal( SIGINT, cleanup );
-#ifdef SIGTSTP
- old_ctrlz = signal( SIGTSTP, cleanup );
-#endif
-
- /* Pass input from keyboard to NINDY as it arrives.
- * NINDY will interpret <CR> and perform echo.
- */
- tty = orig_tty;
- TTY_NINDYTERM( tty );
- ioctl( 0, TIOCSETN, &tty );
-
- while ( 1 ){
- /* Go to sleep until there's something for us on either
- * the remote port or stdin.
- */
-
- DEMUX_WAIT( nindy_fd );
-
- /* Pass input through to correct place */
-
- n = DEMUX_READ( 0, buf, sizeof(buf) );
- if ( n ){ /* Input on stdin */
- write( nindy_fd, buf, n );
- }
-
- n = DEMUX_READ( nindy_fd, buf, sizeof(buf) );
- if ( n ){ /* Input on remote */
- /* Write out any characters in buffer preceding DLE */
- i = non_dle( buf, n );
- if ( i > 0 ){
- write( 1, buf, i );
- }
-
- if ( i != n ){
- /* There *was* a DLE in the buffer */
- 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;
- }
- }
- }
- }
-
- signal( SIGINT, old_ctrlc );
-#ifdef SIGTSTP
- signal( SIGTSTP, old_ctrlz );
-#endif
- restore_tty();
-
- if ( stop_exit ){ /* User program exited */
- WSETEXIT( (*status), stop_code );
- } else { /* Fault or trace */
- switch (stop_code){
- case STOP_GDB_BPT:
- case TRACE_STEP:
- /* Make it look like a VAX trace trap */
- stop_code = SIGTRAP;
- break;
- default:
- /* The target is not running Unix, and its
- faults/traces do not map nicely into Unix signals.
- Make sure they do not get confused with Unix signals
- by numbering them with values higher than the highest
- legal Unix signal. code in i960_print_fault(),
- called via PRINT_RANDOM_SIGNAL, will interpret the
- value. */
- stop_code += NSIG;
- break;
- }
- WSETSTOP( (*status), 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];
+ serial_ttystate state;
+ serial_t serial;
};
+static struct clean_up_tty_args tty_args;
static void
-nindy_fetch_registers(regno)
- int regno;
+clean_up_tty (PTR ptrarg)
{
- struct nindy_regs nindy_regs;
- int regnum, inv;
- double dub;
-
- immediate_quit++;
- ninRegsGet( (char *) &nindy_regs );
- immediate_quit--;
-
- bcopy (nindy_regs.local_regs, ®isters[REGISTER_BYTE (R0_REGNUM)], 16*4);
- bcopy (nindy_regs.global_regs, ®isters[REGISTER_BYTE (G0_REGNUM)], 16*4);
- bcopy (nindy_regs.pcw_acw, ®isters[REGISTER_BYTE (PCW_REGNUM)], 2*4);
- bcopy (nindy_regs.ip, ®isters[REGISTER_BYTE (IP_REGNUM)], 1*4);
- bcopy (nindy_regs.tcw, ®isters[REGISTER_BYTE (TCW_REGNUM)], 1*4);
- for (regnum = FP0_REGNUM; regnum < FP0_REGNUM + 4; regnum++) {
- dub = unpack_double (builtin_type_double,
- &nindy_regs.fp_as_double[8 * (regnum - FP0_REGNUM)],
- &inv);
- /* dub now in host byte order */
- double_to_ieee_extended (&ext_format_i960, &dub,
- ®isters[REGISTER_BYTE (regnum)]);
- }
-
- registers_fetched ();
+ 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");
}
-static void
-nindy_prepare_to_store()
-{
- /* Fetch all regs if they aren't already here. */
- read_register_bytes (0, NULL, REGISTER_BYTES);
-}
+/* Recover from ^Z or ^C while remote process is running */
+static void (*old_ctrlc) ();
+#ifdef SIGTSTP
+static void (*old_ctrlz) ();
+#endif
static void
-nindy_store_registers(regno)
- int regno;
+clean_up_int (void)
{
- struct nindy_regs nindy_regs;
- int regnum, inv;
- double dub;
-
- bcopy (®isters[REGISTER_BYTE (R0_REGNUM)], nindy_regs.local_regs, 16*4);
- bcopy (®isters[REGISTER_BYTE (G0_REGNUM)], nindy_regs.global_regs, 16*4);
- bcopy (®isters[REGISTER_BYTE (PCW_REGNUM)], nindy_regs.pcw_acw, 2*4);
- bcopy (®isters[REGISTER_BYTE (IP_REGNUM)], nindy_regs.ip, 1*4);
- bcopy (®isters[REGISTER_BYTE (TCW_REGNUM)], nindy_regs.tcw, 1*4);
- /* Float regs. Only works on IEEE_FLOAT hosts. FIXME! */
- for (regnum = FP0_REGNUM; regnum < FP0_REGNUM + 4; regnum++) {
- ieee_extended_to_double (&ext_format_i960,
- ®isters[REGISTER_BYTE (regnum)], &dub);
- /* dub now in host byte order */
- /* FIXME-someday, the arguments to unpack_double are backward.
- It expects a target double and returns a host; we pass the opposite.
- This mostly works but not quite. */
- dub = unpack_double (builtin_type_double, (char *)&dub, &inv);
- /* dub now in target byte order */
- bcopy ((char *)&dub, &nindy_regs.fp_as_double[8 * (regnum - FP0_REGNUM)],
- 8);
- }
+ SERIAL_SET_TTY_STATE (tty_args.serial, tty_args.state);
+ free (tty_args.state);
- immediate_quit++;
- ninRegsPut( (char *) &nindy_regs );
- immediate_quit--;
+ 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");
}
-/* Read a word from remote address ADDR and return it.
- * This goes through the data cache.
+/* 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.
*/
-int
-nindy_fetch_word (addr)
- CORE_ADDR addr;
-{
- return dcache_fetch (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;
+static int
+nindy_wait (int pid, struct target_waitstatus *status)
{
- dcache_poke (addr, word);
-}
+ 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
-/* 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.
+ old_cleanups = make_cleanup (clean_up_tty, &tty_args);
- 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. */
+ /* 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);
-int
-nindy_xfer_inferior_memory(memaddr, myaddr, len, write, target)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int 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 (write)
+ while (1)
{
- /* 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 */
+ /* Input on remote */
+ c = SERIAL_READCHAR (nindy_serial, -1);
+ if (c == SERIAL_ERROR)
{
- buffer[count - 1]
- = nindy_fetch_word (addr + (count - 1) * sizeof (int));
+ error ("Cannot read from serial line");
}
-
- /* Copy data to be written over corresponding part of buffer */
-
- bcopy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len);
-
- /* Write the entire buffer. */
-
- for (i = 0; i < count; i++, addr += sizeof (int))
+ else if (c == 0x1b) /* ESC */
{
- errno = 0;
- nindy_store_word (addr, buffer[i]);
- if (errno)
- return 0;
+ c = SERIAL_READCHAR (nindy_serial, -1);
+ c &= ~0x40;
}
- }
- else
- {
- /* Read all the longwords */
- for (i = 0; i < count; i++, addr += sizeof (int))
+ else if (c != 0x10) /* DLE */
+ /* Write out any characters preceding DLE */
{
- errno = 0;
- buffer[i] = nindy_fetch_word (addr);
- if (errno)
- return 0;
- QUIT;
+ 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;
+ }
}
-
- /* Copy appropriate bytes out of the buffer. */
- bcopy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len);
}
- return len;
-}
-\f
-/* The data cache records all the data read from the remote machine
- since the last time it stopped.
-
- Each cache block holds 16 bytes of data
- starting at a multiple-of-16 address. */
-#define DCACHE_SIZE 64 /* Number of cache blocks */
-
-struct dcache_block {
- struct dcache_block *next, *last;
- unsigned int addr; /* Address for which data is recorded. */
- int data[4];
-};
-
-struct dcache_block dcache_free, dcache_valid;
-
-/* Free all the data cache blocks, thus discarding all cached data. */
-static
-void
-dcache_flush ()
-{
- register struct dcache_block *db;
+ SERIAL_SET_TTY_STATE (tty_args.serial, tty_args.state);
+ free (tty_args.state);
+ discard_cleanups (old_cleanups);
- while ((db = dcache_valid.next) != &dcache_valid)
+ if (stop_exit)
{
- remque (db);
- insque (db, &dcache_free);
+ status->kind = TARGET_WAITKIND_EXITED;
+ status->value.integer = stop_code;
}
-}
-
-/*
- * If addr is present in the dcache, return the address of the block
- * containing it.
- */
-static
-struct dcache_block *
-dcache_hit (addr)
- unsigned int addr;
-{
- register struct dcache_block *db;
-
- if (addr & 3)
- abort ();
-
- /* Search all cache blocks for one that is at this address. */
- db = dcache_valid.next;
- while (db != &dcache_valid)
+ else
{
- if ((addr & 0xfffffff0) == db->addr)
- return db;
- db = db->next;
+ /* 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 NULL;
+ return inferior_pid;
}
-/* Return the int data at address ADDR in dcache block DC. */
-static
-int
-dcache_value (db, addr)
- struct dcache_block *db;
- unsigned int addr;
+/* Read the remote registers into the block REGS. */
+
+/* This is the block that ninRegsGet and ninRegsPut handles. */
+struct nindy_regs
{
- if (addr & 3)
- abort ();
- return (db->data[(addr>>2)&3]);
-}
+ 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];
+};
-/* Get a free cache block, put or keep it on the valid list,
- and return its address. The caller should store into the block
- the address and data that it describes, then remque it from the
- free list and insert it into the valid list. This procedure
- prevents errors from creeping in if a ninMemGet is interrupted
- (which used to put garbage blocks in the valid list...). */
-static
-struct dcache_block *
-dcache_alloc ()
+static void
+nindy_fetch_registers (int regno)
{
- register struct dcache_block *db;
+ struct nindy_regs nindy_regs;
+ int regnum;
- if ((db = dcache_free.next) == &dcache_free)
- {
- /* If we can't get one from the free list, take last valid and put
- it on the free list. */
- db = dcache_valid.last;
- remque (db);
- insque (db, &dcache_free);
- }
+ immediate_quit++;
+ ninRegsGet ((char *) &nindy_regs);
+ immediate_quit--;
- remque (db);
- insque (db, &dcache_valid);
- return (db);
+ memcpy (®isters[REGISTER_BYTE (R0_REGNUM)], nindy_regs.local_regs, 16 * 4);
+ memcpy (®isters[REGISTER_BYTE (G0_REGNUM)], nindy_regs.global_regs, 16 * 4);
+ memcpy (®isters[REGISTER_BYTE (PCW_REGNUM)], nindy_regs.pcw_acw, 2 * 4);
+ memcpy (®isters[REGISTER_BYTE (IP_REGNUM)], nindy_regs.ip, 1 * 4);
+ memcpy (®isters[REGISTER_BYTE (TCW_REGNUM)], nindy_regs.tcw, 1 * 4);
+ memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], nindy_regs.fp_as_double, 4 * 8);
+
+ registers_fetched ();
}
-/* Return the contents of the word at address ADDR in the remote machine,
- using the data cache. */
-static
-int
-dcache_fetch (addr)
- CORE_ADDR addr;
+static void
+nindy_prepare_to_store (void)
{
- register struct dcache_block *db;
-
- db = dcache_hit (addr);
- if (db == 0)
- {
- db = dcache_alloc ();
- immediate_quit++;
- ninMemGet(addr & ~0xf, (unsigned char *)db->data, 16);
- immediate_quit--;
- db->addr = addr & ~0xf;
- remque (db); /* Off the free list */
- insque (db, &dcache_valid); /* On the valid list */
- }
- return (dcache_value (db, addr));
+ /* Fetch all regs if they aren't already here. */
+ read_register_bytes (0, NULL, REGISTER_BYTES);
}
-/* Write the word at ADDR both in the data cache and in the remote machine. */
static void
-dcache_poke (addr, data)
- CORE_ADDR addr;
- int data;
+nindy_store_registers (int regno)
{
- register struct dcache_block *db;
-
- /* First make sure the word is IN the cache. DB is its cache block. */
- db = dcache_hit (addr);
- if (db == 0)
- {
- db = dcache_alloc ();
- immediate_quit++;
- ninMemGet(addr & ~0xf, (unsigned char *)db->data, 16);
- immediate_quit--;
- db->addr = addr & ~0xf;
- remque (db); /* Off the free list */
- insque (db, &dcache_valid); /* On the valid list */
- }
+ struct nindy_regs nindy_regs;
+ int regnum;
- /* Modify the word in the cache. */
- db->data[(addr>>2)&3] = data;
+ memcpy (nindy_regs.local_regs, ®isters[REGISTER_BYTE (R0_REGNUM)], 16 * 4);
+ memcpy (nindy_regs.global_regs, ®isters[REGISTER_BYTE (G0_REGNUM)], 16 * 4);
+ memcpy (nindy_regs.pcw_acw, ®isters[REGISTER_BYTE (PCW_REGNUM)], 2 * 4);
+ memcpy (nindy_regs.ip, ®isters[REGISTER_BYTE (IP_REGNUM)], 1 * 4);
+ memcpy (nindy_regs.tcw, ®isters[REGISTER_BYTE (TCW_REGNUM)], 1 * 4);
+ memcpy (nindy_regs.fp_as_double, ®isters[REGISTER_BYTE (FP0_REGNUM)], 8 * 4);
- /* Send the changed word. */
immediate_quit++;
- ninMemPut(addr, (unsigned char *)&data, 4);
+ ninRegsPut ((char *) &nindy_regs);
immediate_quit--;
}
-/* The cache itself. */
-struct dcache_block the_cache[DCACHE_SIZE];
+/* Copy LEN bytes to or from inferior's memory starting at MEMADDR
+ to debugger memory starting at MYADDR. Copy to inferior if
+ SHOULD_WRITE is nonzero. Returns the length copied. TARGET is
+ unused. */
-/* Initialize the data cache. */
-static void
-dcache_init ()
+int
+nindy_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len,
+ int should_write, struct target_ops *target)
{
- register i;
- register struct dcache_block *db;
-
- db = the_cache;
- dcache_free.next = dcache_free.last = &dcache_free;
- dcache_valid.next = dcache_valid.last = &dcache_valid;
- for (i=0;i<DCACHE_SIZE;i++,db++)
- insque (db, &dcache_free);
-}
+ int res;
+ if (len <= 0)
+ return 0;
+
+ if (should_write)
+ res = ninMemPut (memaddr, myaddr, len);
+ else
+ res = ninMemGet (memaddr, myaddr, len);
+ return res;
+}
+\f
static void
-nindy_create_inferior (execfile, args, env)
- char *execfile;
- char *args;
- char **env;
+nindy_create_inferior (char *execfile, char *args, char **env)
{
int entry_pt;
int pid;
error ("Can't pass arguments to remote NINDY process");
if (execfile == 0 || exec_bfd == 0)
- error ("No exec file specified");
+ error ("No executable file specified");
entry_pt = (int) bfd_get_start_address (exec_bfd);
pid = 42;
-#ifdef CREATE_INFERIOR_HOOK
- CREATE_INFERIOR_HOOK (pid);
-#endif
-
-/* The "process" (board) is already stopped awaiting our commands, and
- the program is already downloaded. We just set its PC and go. */
+ /* 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 */
target_terminal_inferior ();
/* insert_step_breakpoint (); FIXME, do we need this? */
- proceed ((CORE_ADDR)entry_pt, -1, 0); /* Let 'er rip... */
+ /* Let 'er rip... */
+ proceed ((CORE_ADDR) entry_pt, TARGET_SIGNAL_DEFAULT, 0);
}
static void
-reset_command(args, from_tty)
- char *args;
- int from_tty;
+reset_command (char *args, int from_tty)
{
- if ( !nindy_fd ){
- error( "No target system to reset -- use 'target nindy' command.");
- }
- if ( query("Really reset the target system?",0,0) ){
- send_break( nindy_fd );
- tty_flush( nindy_fd );
- }
+ 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;
+nindy_kill (char *args, int from_tty)
{
- return; /* Ignore attempts to kill target system */
+ return; /* Ignore attempts to kill target system */
}
/* Clean up when a program exits.
instructions. */
void
-nindy_mourn_inferior ()
+nindy_mourn_inferior (void)
{
remove_breakpoints ();
unpush_target (&nindy_ops);
\f
/* Pass the args the way catch_errors wants them. */
static int
-nindy_open_stub (arg)
- char *arg;
+nindy_open_stub (char *arg)
{
nindy_open (arg, 1);
return 1;
}
+static void
+nindy_load (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;
+load_stub (char *arg)
{
target_load (arg, 1);
return 1;
an i960 object file on the host system. */
void
-nindy_before_main_loop ()
+nindy_before_main_loop (void)
{
char ttyname[100];
char *p, *p2;
- while (current_target != &nindy_ops) { /* remote tty not specified yet */
- if ( instream == stdin ){
- printf("\nAttach /dev/ttyNN -- specify NN, or \"quit\" to quit: ");
- fflush( stdout );
+ 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 );
+ fgets (ttyname, sizeof (ttyname) - 1, stdin);
- /* Strip leading and trailing whitespace */
- for ( p = ttyname; isspace(*p); p++ ){
- ;
+ /* Strip leading and trailing whitespace */
+ for (p = ttyname; isspace (*p); p++)
+ {
+ ;
}
- if ( *p == '\0' ){
- return; /* User just hit spaces or return, wants out */
+ if (*p == '\0')
+ {
+ return; /* User just hit spaces or return, wants out */
}
- for ( p2= p; !isspace(*p2) && (*p2 != '\0'); p2++ ){
- ;
+ for (p2 = p; !isspace (*p2) && (*p2 != '\0'); p2++)
+ {
+ ;
}
- *p2= '\0';
- if ( STREQ("quit",p) ){
- exit(1);
+ *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);
- }
- }
- }
+ 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);
+ }
+ }
+ }
}
\f
/* Define the target subroutine names */
-struct target_ops nindy_ops = {
- "nindy", "Remote serial target in i960 NINDY-specific protocol",
- "Use a remote i960 system running NINDY connected by a serial line.\n\
+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_open, nindy_close,
- 0,
- nindy_detach,
- nindy_resume,
- nindy_wait,
- nindy_fetch_registers, nindy_store_registers,
- nindy_prepare_to_store,
- nindy_xfer_inferior_memory, nindy_files_info,
- 0, 0, /* insert_breakpoint, remove_breakpoint, */
- 0, 0, 0, 0, 0, /* Terminal crud */
- nindy_kill,
- generic_load,
- 0, /* lookup_symbol */
- nindy_create_inferior,
- nindy_mourn_inferior,
- 0, /* can_run */
- 0, /* notice_signals */
- process_stratum, 0, /* next */
- 1, 1, 1, 1, 1, /* all mem, mem, stack, regs, exec */
- 0, 0, /* Section pointers */
- OPS_MAGIC, /* Always the last thing */
-};
+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 ()
+_initialize_nindy (void)
{
+ init_nindy_ops ();
add_target (&nindy_ops);
add_com ("reset", class_obscure, reset_command,
"Send a 'break' to the remote target system.\n\
projects / deliverable / binutils-gdb.git / blobdiff