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authorStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
commit071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch)
tree5deda65b8d7b04d1f4cbc534c3206d328e1267ec /gdb/remote-adapt.c
parent1730ec6b1848f0f32154277f788fb29f88d8475b (diff)
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Initial creation of sourceware repository
Diffstat (limited to 'gdb/remote-adapt.c')
-rw-r--r--gdb/remote-adapt.c1443
1 files changed, 0 insertions, 1443 deletions
diff --git a/gdb/remote-adapt.c b/gdb/remote-adapt.c
deleted file mode 100644
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--- a/gdb/remote-adapt.c
+++ /dev/null
@@ -1,1443 +0,0 @@
-/* Remote debugging interface for AMD 290*0 Adapt Monitor Version 2.1d18.
- Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
- Contributed by David Wood at New York University (wood@lab.ultra.nyu.edu).
- Adapted from work done at Cygnus Support in remote-eb.c.
-
-This file is part of GDB.
-
-This program 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 2 of the License, or
-(at your option) any later version.
-
-This program 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. */
-
-/* This is like remote.c but is for an esoteric situation--
- having a 29k board attached to an Adapt inline monitor.
- The monitor is connected via serial line to a unix machine
- running gdb.
-
- 3/91 - developed on Sun3 OS 4.1, by David Wood
- o - I can't get binary coff to load.
- o - I can't get 19200 baud rate to work.
- 7/91 o - Freeze mode tracing can be done on a 29050. */
-
-
-
-#include "defs.h"
-#include "gdb_string.h"
-#include "inferior.h"
-#include "wait.h"
-#include "value.h"
-#include <ctype.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <errno.h>
-#include "terminal.h"
-#include "target.h"
-#include "gdbcore.h"
-
-/* This processor is getting rusty but I am trying to keep it
- up to date at least with data structure changes.
- Activate this block to compile just this file.
- */
-#define COMPILE_CHECK 0
-#if COMPILE_CHECK
-#define Q_REGNUM 0
-#define VAB_REGNUM 0
-#define CPS_REGNUM 0
-#define IPA_REGNUM 0
-#define IPB_REGNUM 0
-#define GR1_REGNUM 0
-#define LR0_REGNUM 0
-#define IPC_REGNUM 0
-#define CR_REGNUM 0
-#define BP_REGNUM 0
-#define FC_REGNUM 0
-#define INTE_REGNUM 0
-#define EXO_REGNUM 0
-#define GR96_REGNUM 0
-#define NPC_REGNUM
-#define FPE_REGNUM 0
-#define PC2_REGNUM 0
-#define FPS_REGNUM 0
-#define ALU_REGNUM 0
-#define LRU_REGNUM 0
-#define TERMINAL int
-#define RAW 1
-#define ANYP 1
-extern int a29k_freeze_mode ;
-extern int processor_type ;
-extern char * processor_name ;
-#endif
-
-/* External data declarations */
-extern int stop_soon_quietly; /* for wait_for_inferior */
-
-/* Forward data declarations */
-extern struct target_ops adapt_ops; /* Forward declaration */
-
-/* Forward function declarations */
-static void adapt_fetch_registers ();
-static void adapt_store_registers ();
-static void adapt_close ();
-static int adapt_clear_breakpoints();
-
-#define FREEZE_MODE (read_register(CPS_REGNUM) && 0x400)
-#define USE_SHADOW_PC ((processor_type == a29k_freeze_mode) && FREEZE_MODE)
-
-/* Can't seem to get binary coff working */
-#define ASCII_COFF /* Adapt will be downloaded with ascii coff */
-
-/* FIXME: Replace with `set remotedebug'. */
-#define LOG_FILE "adapt.log"
-#if defined (LOG_FILE)
-FILE *log_file=NULL;
-#endif
-
-static int timeout = 5;
-static char *dev_name;
-
-/* Descriptor for I/O to remote machine. Initialize it to -1 so that
- adapt_open knows that we don't have a file open when the program
- starts. */
-int adapt_desc = -1;
-
-/* stream which is fdopen'd from adapt_desc. Only valid when
- adapt_desc != -1. */
-FILE *adapt_stream;
-
-#define ON 1
-#define OFF 0
-static void
-rawmode(desc, turnon)
-int desc;
-int turnon;
-{
-
- TERMINAL sg;
-
- if (desc < 0)
- return;
-
- ioctl (desc, TIOCGETP, &sg);
-
- if (turnon) {
-#ifdef HAVE_TERMIO
- sg.c_lflag &= ~(ICANON);
-#else
- sg.sg_flags |= RAW;
-#endif
- } else {
-#ifdef HAVE_TERMIO
- sg.c_lflag |= ICANON;
-#else
- sg.sg_flags &= ~(RAW);
-#endif
- }
- ioctl (desc, TIOCSETP, &sg);
-}
-
-/* Suck up all the input from the adapt */
-slurp_input()
-{
- char buf[8];
-
-#ifdef HAVE_TERMIO
- /* termio does the timeout for us. */
- while (read (adapt_desc, buf, 8) > 0);
-#else
- alarm (timeout);
- while (read (adapt_desc, buf, 8) > 0);
- alarm (0);
-#endif
-}
-
-/* Read a character from the remote system, doing all the fancy
- timeout stuff. */
-static int
-readchar ()
-{
- char buf;
-
- buf = '\0';
-#ifdef HAVE_TERMIO
- /* termio does the timeout for us. */
- read (adapt_desc, &buf, 1);
-#else
- alarm (timeout);
- if (read (adapt_desc, &buf, 1) < 0)
- {
- if (errno == EINTR)
- error ("Timeout reading from remote system.");
- else
- perror_with_name ("remote");
- }
- alarm (0);
-#endif
-
- if (buf == '\0')
- error ("Timeout reading from remote system.");
-#if defined (LOG_FILE)
- putc (buf & 0x7f, log_file);
-#endif
- return buf & 0x7f;
-}
-
-/* Keep discarding input from the remote system, until STRING is found.
- Let the user break out immediately. */
-static void
-expect (string)
- char *string;
-{
- char *p = string;
-
- fflush(adapt_stream);
- immediate_quit = 1;
- while (1)
- {
- if (readchar() == *p)
- {
- p++;
- if (*p == '\0')
- {
- immediate_quit = 0;
- return;
- }
- }
- else
- p = string;
- }
-}
-
-/* Keep discarding input until we see the adapt prompt.
-
- The convention for dealing with the prompt is that you
- o give your command
- o *then* wait for the prompt.
-
- Thus the last thing that a procedure does with the serial line
- will be an expect_prompt(). Exception: adapt_resume does not
- wait for the prompt, because the terminal is being handed over
- to the inferior. However, the next thing which happens after that
- is a adapt_wait which does wait for the prompt.
- Note that this includes abnormal exit, e.g. error(). This is
- necessary to prevent getting into states from which we can't
- recover. */
-static void
-expect_prompt ()
-{
-#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
- fflush(adapt_stream);
- expect ("\n# ");
-}
-
-/* Get a hex digit from the remote system & return its value.
- If ignore_space is nonzero, ignore spaces (not newline, tab, etc). */
-static int
-get_hex_digit (ignore_space)
- int ignore_space;
-{
- int ch;
- while (1)
- {
- ch = readchar ();
- if (ch >= '0' && ch <= '9')
- return ch - '0';
- else if (ch >= 'A' && ch <= 'F')
- return ch - 'A' + 10;
- else if (ch >= 'a' && ch <= 'f')
- return ch - 'a' + 10;
- else if (ch == ' ' && ignore_space)
- ;
- else
- {
- expect_prompt ();
- error ("Invalid hex digit from remote system.");
- }
- }
-}
-
-/* Get a byte from adapt_desc and put it in *BYT. Accept any number
- leading spaces. */
-static void
-get_hex_byte (byt)
- char *byt;
-{
- int val;
-
- val = get_hex_digit (1) << 4;
- val |= get_hex_digit (0);
- *byt = val;
-}
-
-/* Read a 32-bit hex word from the adapt, preceded by a space */
-static long
-get_hex_word()
-{
- long val;
- int j;
-
- val = 0;
- for (j = 0; j < 8; j++)
- val = (val << 4) + get_hex_digit (j == 0);
- return val;
-}
-/* Get N 32-bit hex words from remote, each preceded by a space
- and put them in registers starting at REGNO. */
-static void
-get_hex_regs (n, regno)
- int n;
- int regno;
-{
- long val;
- while (n--) {
- val = get_hex_word();
- supply_register(regno++,(char *) &val);
- }
-}
-/* Called when SIGALRM signal sent due to alarm() timeout. */
-#ifndef HAVE_TERMIO
-
-#ifndef __STDC__
-# ifndef volatile
-# define volatile /**/
-# endif
-#endif
-volatile int n_alarms;
-
-void
-adapt_timer ()
-{
-#if 0
- if (kiodebug)
- printf ("adapt_timer called\n");
-#endif
- n_alarms++;
-}
-#endif
-
-/* malloc'd name of the program on the remote system. */
-static char *prog_name = NULL;
-
-/* Number of SIGTRAPs we need to simulate. That is, the next
- NEED_ARTIFICIAL_TRAP calls to adapt_wait should just return
- SIGTRAP without actually waiting for anything. */
-
-static int need_artificial_trap = 0;
-
-void
-adapt_kill(arg,from_tty)
-char *arg;
-int from_tty;
-{
- fprintf (adapt_stream, "K");
- fprintf (adapt_stream, "\r");
- expect_prompt ();
-}
-/*
- * Download a file specified in 'args', to the adapt.
- * FIXME: Assumes the file to download is a binary coff file.
- */
-static void
-adapt_load(args,fromtty)
-char *args;
-int fromtty;
-{
- FILE *fp;
- int n;
- char buffer[1024];
-
- if (!adapt_stream) {
- printf_filtered("Adapt not open. Use 'target' command to open adapt\n");
- return;
- }
-
- /* OK, now read in the file. Y=read, C=COFF, T=dTe port
- 0=start address. */
-
-#ifdef ASCII_COFF /* Ascii coff */
- fprintf (adapt_stream, "YA T,0\r");
- fflush(adapt_stream); /* Just in case */
- /* FIXME: should check args for only 1 argument */
- sprintf(buffer,"cat %s | btoa > /tmp/#adapt-btoa",args);
- system(buffer);
- fp = fopen("/tmp/#adapt-btoa","r");
- rawmode(adapt_desc,OFF);
- while (n=fread(buffer,1,1024,fp)) {
- do { n -= write(adapt_desc,buffer,n); } while (n>0);
- if (n<0) { perror("writing ascii coff"); break; }
- }
- fclose(fp);
- rawmode(adapt_desc,ON);
- system("rm /tmp/#adapt-btoa");
-#else /* Binary coff - can't get it to work .*/
- fprintf (adapt_stream, "YC T,0\r");
- fflush(adapt_stream); /* Just in case */
- if (!(fp = fopen(args,"r"))) {
- printf_filtered("Can't open %s\n",args);
- return;
- }
- while (n=fread(buffer,1,512,fp)) {
- do { n -= write(adapt_desc,buffer,n); } while (n>0);
- if (n<0) { perror("writing ascii coff"); break; }
- }
- fclose(fp);
-#endif
- expect_prompt (); /* Skip garbage that comes out */
- fprintf (adapt_stream, "\r");
- expect_prompt ();
-}
-
-/* This is called not only when we first attach, but also when the
- user types "run" after having attached. */
-void
-adapt_create_inferior (execfile, args, env)
- char *execfile;
- char *args;
- char **env;
-{
- int entry_pt;
-
- if (args && *args)
- error ("Can't pass arguments to remote adapt process.");
-
- if (execfile == 0 || exec_bfd == 0)
- error ("No executable file specified");
-
- entry_pt = (int) bfd_get_start_address (exec_bfd);
-
- if (adapt_stream) {
- adapt_kill(NULL,NULL);
- adapt_clear_breakpoints();
- init_wait_for_inferior ();
- /* Clear the input because what the adapt sends back is different
- * depending on whether it was running or not.
- */
- slurp_input(); /* After this there should be a prompt */
- fprintf(adapt_stream,"\r");
- expect_prompt();
- printf_filtered("Do you want to download '%s' (y/n)? [y] : ",prog_name);
- {
- char buffer[10];
- gets(buffer);
- if (*buffer != 'n') {
- adapt_load(prog_name,0);
- }
- }
-
-#ifdef NOTDEF
- /* Set the PC and wait for a go/cont */
- fprintf (adapt_stream, "G %x,N\r",entry_pt);
- printf_filtered("Now use the 'continue' command to start.\n");
- expect_prompt ();
-#else
- insert_breakpoints (); /* Needed to get correct instruction in cache */
- proceed(entry_pt, TARGET_SIGNAL_DEFAULT, 0);
-#endif
-
- } else {
- printf_filtered("Adapt not open yet.\n");
- }
-}
-
-/* Translate baud rates from integers to damn B_codes. Unix should
- have outgrown this crap years ago, but even POSIX wouldn't buck it. */
-
-#ifndef B19200
-#define B19200 EXTA
-#endif
-#ifndef B38400
-#define B38400 EXTB
-#endif
-
-static struct {int rate, damn_b;} baudtab[] = {
- {0, B0},
- {50, B50},
- {75, B75},
- {110, B110},
- {134, B134},
- {150, B150},
- {200, B200},
- {300, B300},
- {600, B600},
- {1200, B1200},
- {1800, B1800},
- {2400, B2400},
- {4800, B4800},
- {9600, B9600},
- {19200, B19200},
- {38400, B38400},
- {-1, -1},
-};
-
-static int damn_b (rate)
- int rate;
-{
- int i;
-
- for (i = 0; baudtab[i].rate != -1; i++)
- if (rate == baudtab[i].rate) return baudtab[i].damn_b;
- return B38400; /* Random */
-}
-
-
-/* Open a connection to a remote debugger.
- NAME is the filename used for communication, then a space,
- then the baud rate.
- */
-
-static int baudrate = 9600;
-static void
-adapt_open (name, from_tty)
- char *name;
- int from_tty;
-{
- TERMINAL sg;
- unsigned int prl;
- char *p;
-
- /* Find the first whitespace character, it separates dev_name from
- prog_name. */
- if (name == 0)
- goto erroid;
-
- for (p = name;
- *p != '\0' && !isspace (*p); p++)
- ;
- if (*p == '\0')
-erroid:
- error ("\
-Please include the name of the device for the serial port,\n\
-the baud rate, and the name of the program to run on the remote system.");
- dev_name = (char*)xmalloc(p - name + 1);
- strncpy (dev_name, name, p - name);
- dev_name[p - name] = '\0';
-
- /* Skip over the whitespace after dev_name */
- for (; isspace (*p); p++)
- /*EMPTY*/;
-
- if (1 != sscanf (p, "%d ", &baudrate))
- goto erroid;
-
- /* Skip the number and then the spaces */
- for (; isdigit (*p); p++)
- /*EMPTY*/;
- for (; isspace (*p); p++)
- /*EMPTY*/;
-
- if (prog_name != NULL)
- free (prog_name);
- prog_name = savestring (p, strlen (p));
-
- adapt_close (0);
-
- adapt_desc = open (dev_name, O_RDWR);
- if (adapt_desc < 0)
- perror_with_name (dev_name);
- ioctl (adapt_desc, TIOCGETP, &sg);
-#if ! defined(COMPILE_CHECK)
-#ifdef HAVE_TERMIO
- sg.c_cc[VMIN] = 0; /* read with timeout. */
- sg.c_cc[VTIME] = timeout * 10;
- sg.c_lflag &= ~(ICANON | ECHO);
- sg.c_cflag = (sg.c_cflag & ~CBAUD) | damn_b (baudrate);
-#else
- sg.sg_ispeed = damn_b (baudrate);
- sg.sg_ospeed = damn_b (baudrate);
- sg.sg_flags |= RAW | ANYP;
- sg.sg_flags &= ~ECHO;
-#endif
-
- ioctl (adapt_desc, TIOCSETP, &sg);
- adapt_stream = fdopen (adapt_desc, "r+");
-#endif /* compile_check */
- push_target (&adapt_ops);
-
-#ifndef HAVE_TERMIO
-#ifndef NO_SIGINTERRUPT
- /* Cause SIGALRM's to make reads fail with EINTR instead of resuming
- the read. */
- if (siginterrupt (SIGALRM, 1) != 0)
- perror ("adapt_open: error in siginterrupt");
-#endif
-
- /* Set up read timeout timer. */
- if ((void (*)) signal (SIGALRM, adapt_timer) == (void (*)) -1)
- perror ("adapt_open: error in signal");
-#endif
-
-#if defined (LOG_FILE)
- log_file = fopen (LOG_FILE, "w");
- if (log_file == NULL)
- perror_with_name (LOG_FILE);
-#endif
-
- /* Put this port into NORMAL mode, send the 'normal' character */
- write(adapt_desc, "", 1); /* Control A */
- write(adapt_desc, "\r", 1);
- expect_prompt ();
-
- /* Hello? Are you there? */
- write (adapt_desc, "\r", 1);
-
- expect_prompt ();
-
- /* Clear any break points */
- adapt_clear_breakpoints();
-
- /* Print out some stuff, letting the user now what's going on */
- printf_filtered("Connected to an Adapt via %s.\n", dev_name);
- /* FIXME: can this restriction be removed? */
- printf_filtered("Remote debugging using virtual addresses works only\n");
- printf_filtered("\twhen virtual addresses map 1:1 to physical addresses.\n");
- if (processor_type != a29k_freeze_mode) {
- fprintf_filtered(gdb_stderr,
- "Freeze-mode debugging not available, and can only be done on an A29050.\n");
- }
-}
-
-/* Close out all files and local state before this target loses control. */
-
-static void
-adapt_close (quitting)
- int quitting;
-{
-
- /* Clear any break points */
- adapt_clear_breakpoints();
-
- /* Put this port back into REMOTE mode */
- if (adapt_stream) {
- fflush(adapt_stream);
- sleep(1); /* Let any output make it all the way back */
- write(adapt_desc, "R\r", 2);
- }
-
- /* Due to a bug in Unix, fclose closes not only the stdio stream,
- but also the file descriptor. So we don't actually close
- adapt_desc. */
- if (adapt_stream)
- fclose (adapt_stream); /* This also closes adapt_desc */
- if (adapt_desc >= 0)
- /* close (adapt_desc); */
-
- /* Do not try to close adapt_desc again, later in the program. */
- adapt_stream = NULL;
- adapt_desc = -1;
-
-#if defined (LOG_FILE)
- if (log_file) {
- if (ferror (log_file))
- printf_filtered ("Error writing log file.\n");
- if (fclose (log_file) != 0)
- printf_filtered ("Error closing log file.\n");
- log_file = NULL;
- }
-#endif
-}
-
-/* Attach to the target that is already loaded and possibly running */
-static void
-adapt_attach (args, from_tty)
- char *args;
- int from_tty;
-{
-
- if (from_tty)
- printf_filtered ("Attaching to remote program %s.\n", prog_name);
-
- /* Send the adapt a kill. It is ok if it is not already running */
- fprintf(adapt_stream, "K\r"); fflush(adapt_stream);
- expect_prompt(); /* Slurp the echo */
-}
-
-
-/* Terminate the open connection to the remote debugger.
- Use this when you want to detach and do something else
- with your gdb. */
-void
-adapt_detach (args,from_tty)
- char *args;
- int from_tty;
-{
-
- if (adapt_stream) { /* Send it on its way (tell it to continue) */
- adapt_clear_breakpoints();
- fprintf(adapt_stream,"G\r");
- }
-
- pop_target(); /* calls adapt_close to do the real work */
- if (from_tty)
- printf_filtered ("Ending remote %s debugging\n", target_shortname);
-}
-
-/* Tell the remote machine to resume. */
-
-void
-adapt_resume (pid, step, sig)
- int pid, step;
- enum target_signal sig;
-{
- if (step)
- {
- write (adapt_desc, "t 1,s\r", 6);
- /* Wait for the echo. */
- expect ("t 1,s\r\n");
- /* Then comes a line containing the instruction we stepped to. */
- expect ("@");
- /* Then we get the prompt. */
- expect_prompt ();
-
- /* Force the next adapt_wait to return a trap. Not doing anything
- about I/O from the target means that the user has to type
- "continue" to see any. FIXME, this should be fixed. */
- need_artificial_trap = 1;
- }
- else
- {
- write (adapt_desc, "G\r", 2);
- /* Swallow the echo. */
- expect_prompt();
- }
-}
-
-/* Wait until the remote machine stops, then return,
- storing status in STATUS just as `wait' would. */
-
-int
-adapt_wait (status)
- struct target_waitstatus *status;
-{
- /* Strings to look for. '?' means match any single character.
- Note that with the algorithm we use, the initial character
- of the string cannot recur in the string, or we will not
- find some cases of the string in the input. */
-
- static char bpt[] = "@";
- /* It would be tempting to look for "\n[__exit + 0x8]\n"
- but that requires loading symbols with "yc i" and even if
- we did do that we don't know that the file has symbols. */
- static char exitmsg[] = "@????????I JMPTI GR121,LR0";
- char *bp = bpt;
- char *ep = exitmsg;
-
- /* Large enough for either sizeof (bpt) or sizeof (exitmsg) chars. */
- char swallowed[50];
- /* Current position in swallowed. */
- char *swallowed_p = swallowed;
-
- int ch;
- int ch_handled;
- int old_timeout = timeout;
- int old_immediate_quit = immediate_quit;
-
- status->kind = TARGET_WAITKIND_EXITED;
- status->value.integer = 0;
-
- if (need_artificial_trap != 0)
- {
- status->kind = TARGET_WAITKIND_STOPPED;
- status->value.sig = TARGET_SIGNAL_TRAP;
- need_artificial_trap--;
- return 0;
- }
-
- timeout = 0; /* Don't time out -- user program is running. */
- immediate_quit = 1; /* Helps ability to QUIT */
- while (1) {
- QUIT; /* Let user quit and leave process running */
- ch_handled = 0;
- ch = readchar ();
- if (ch == *bp) {
- bp++;
- if (*bp == '\0')
- break;
- ch_handled = 1;
-
- *swallowed_p++ = ch;
- } else
- bp = bpt;
- if (ch == *ep || *ep == '?') {
- ep++;
- if (*ep == '\0')
- break;
-
- if (!ch_handled)
- *swallowed_p++ = ch;
- ch_handled = 1;
- } else
- ep = exitmsg;
- if (!ch_handled) {
- char *p;
- /* Print out any characters which have been swallowed. */
- for (p = swallowed; p < swallowed_p; ++p)
- putc (*p, stdout);
- swallowed_p = swallowed;
- putc (ch, stdout);
- }
- }
- expect_prompt ();
- if (*bp== '\0')
- {
- status->kind = TARGET_WAITKIND_STOPPED;
- status->value.sig = TARGET_SIGNAL_TRAP;
- }
- else
- {
- status->kind = TARGET_WAITKIND_EXITED;
- status->value.integer = 0;
- }
- timeout = old_timeout;
- immediate_quit = old_immediate_quit;
- return 0;
-}
-
-/* Return the name of register number REGNO
- in the form input and output by adapt.
-
- Returns a pointer to a static buffer containing the answer. */
-static char *
-get_reg_name (regno)
- int regno;
-{
- static char buf[80];
- if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32 )
- sprintf (buf, "GR%03d", regno - GR96_REGNUM + 96);
-#if defined(GR64_REGNUM)
- else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32 )
- sprintf (buf, "GR%03d", regno - GR64_REGNUM + 64);
-#endif
- else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128)
- sprintf (buf, "LR%03d", regno - LR0_REGNUM);
- else if (regno == Q_REGNUM)
- strcpy (buf, "SR131");
- else if (regno >= BP_REGNUM && regno <= CR_REGNUM)
- sprintf (buf, "SR%03d", regno - BP_REGNUM + 133);
- else if (regno == ALU_REGNUM)
- strcpy (buf, "SR132");
- else if (regno >= IPC_REGNUM && regno <= IPB_REGNUM)
- sprintf (buf, "SR%03d", regno - IPC_REGNUM + 128);
- else if (regno >= VAB_REGNUM && regno <= LRU_REGNUM) {
- /* When a 29050 is in freeze-mode, read shadow pcs instead */
- if ((regno >= NPC_REGNUM && regno <= PC2_REGNUM) && USE_SHADOW_PC)
- sprintf (buf, "SR%03d", regno - NPC_REGNUM + 20);
- else
- sprintf (buf, "SR%03d", regno - VAB_REGNUM);
- }
- else if (regno == GR1_REGNUM)
- strcpy (buf, "GR001");
- return buf;
-}
-
-/* Read the remote registers. */
-
-static void
-adapt_fetch_registers ()
-{
- int reg_index;
- int regnum_index;
- char tempbuf[10];
- int sreg_buf[16];
- int i,j;
-
-/*
- * Global registers
- */
-#if defined(GR64_REGNUM)
- write (adapt_desc, "dw gr64,gr95\r", 13);
- for (reg_index = 64, regnum_index = GR64_REGNUM;
- reg_index < 96;
- reg_index += 4, regnum_index += 4)
- {
- sprintf (tempbuf, "GR%03d ", reg_index);
- expect (tempbuf);
- get_hex_regs (4, regnum_index);
- expect ("\n");
- }
-#endif
- write (adapt_desc, "dw gr96,gr127\r", 14);
- for (reg_index = 96, regnum_index = GR96_REGNUM;
- reg_index < 128;
- reg_index += 4, regnum_index += 4)
- {
- sprintf (tempbuf, "GR%03d ", reg_index);
- expect (tempbuf);
- get_hex_regs (4, regnum_index);
- expect ("\n");
- }
-
-/*
- * Local registers
- */
- for (i = 0; i < 128; i += 32)
- {
- /* The PC has a tendency to hang if we get these
- all in one fell swoop ("dw lr0,lr127"). */
- sprintf (tempbuf, "dw lr%d\r", i);
- write (adapt_desc, tempbuf, strlen (tempbuf));
- for (reg_index = i, regnum_index = LR0_REGNUM + i;
- reg_index < i + 32;
- reg_index += 4, regnum_index += 4)
- {
- sprintf (tempbuf, "LR%03d ", reg_index);
- expect (tempbuf);
- get_hex_regs (4, regnum_index);
- expect ("\n");
- }
- }
-
-/*
- * Special registers
- */
- sprintf (tempbuf, "dw sr0\r");
- write (adapt_desc, tempbuf, strlen (tempbuf));
- for (i=0 ; i<4 ; i++) { /* SR0 - SR14 */
- sprintf (tempbuf, "SR%3d",i*4);
- expect(tempbuf);
- for (j=0 ; j < (i==3 ? 3 : 4) ; j++)
- sreg_buf[i*4 + j] = get_hex_word();
- }
- expect_prompt();
- /*
- * Read the pcs individually if we are in freeze mode.
- * See get_reg_name(), it translates the register names for the pcs to
- * the names of the shadow pcs.
- */
- if (USE_SHADOW_PC) {
- sreg_buf[10] = read_register(NPC_REGNUM); /* pc0 */
- sreg_buf[11] = read_register(PC_REGNUM); /* pc1 */
- sreg_buf[12] = read_register(PC2_REGNUM); /* pc2 */
- }
- for (i=0 ; i<14 ; i++) /* Supply vab -> lru */
- supply_register(VAB_REGNUM+i, (char *) &sreg_buf[i]);
- sprintf (tempbuf, "dw sr128\r");
- write (adapt_desc, tempbuf, strlen (tempbuf));
- for (i=0 ; i<2 ; i++) { /* SR128 - SR135 */
- sprintf (tempbuf, "SR%3d",128 + i*4);
- expect(tempbuf);
- for (j=0 ; j<4 ; j++)
- sreg_buf[i*4 + j] = get_hex_word();
- }
- expect_prompt();
- supply_register(IPC_REGNUM,(char *) &sreg_buf[0]);
- supply_register(IPA_REGNUM,(char *) &sreg_buf[1]);
- supply_register(IPB_REGNUM,(char *) &sreg_buf[2]);
- supply_register(Q_REGNUM, (char *) &sreg_buf[3]);
- /* Skip ALU */
- supply_register(BP_REGNUM, (char *) &sreg_buf[5]);
- supply_register(FC_REGNUM, (char *) &sreg_buf[6]);
- supply_register(CR_REGNUM, (char *) &sreg_buf[7]);
-
- /* There doesn't seem to be any way to get these. */
- {
- int val = -1;
- supply_register (FPE_REGNUM, (char *) &val);
- supply_register (INTE_REGNUM, (char *) &val);
- supply_register (FPS_REGNUM, (char *) &val);
- supply_register (EXO_REGNUM, (char *) &val);
- }
-
- write (adapt_desc, "dw gr1,gr1\r", 11);
- expect ("GR001 ");
- get_hex_regs (1, GR1_REGNUM);
- expect_prompt ();
-}
-
-/* Fetch register REGNO, or all registers if REGNO is -1.
- */
-static void
-adapt_fetch_register (regno)
- int regno;
-{
- if (regno == -1)
- adapt_fetch_registers ();
- else
- {
- char *name = get_reg_name (regno);
- fprintf (adapt_stream, "dw %s,%s\r", name, name);
- expect (name);
- expect (" ");
- get_hex_regs (1, regno);
- expect_prompt ();
- }
-}
-
-/* Store the remote registers from the contents of the block REGS. */
-
-static void
-adapt_store_registers ()
-{
- int i, j;
-
- fprintf (adapt_stream, "s gr1,%x\r", read_register (GR1_REGNUM));
- expect_prompt ();
-
-#if defined(GR64_REGNUM)
- for (j = 0; j < 32; j += 16)
- {
- fprintf (adapt_stream, "s gr%d,", j + 64);
- for (i = 0; i < 15; ++i)
- fprintf (adapt_stream, "%x,", read_register (GR64_REGNUM + j + i));
- fprintf (adapt_stream, "%x\r", read_register (GR64_REGNUM + j + 15));
- expect_prompt ();
- }
-#endif
- for (j = 0; j < 32; j += 16)
- {
- fprintf (adapt_stream, "s gr%d,", j + 96);
- for (i = 0; i < 15; ++i)
- fprintf (adapt_stream, "%x,", read_register (GR96_REGNUM + j + i));
- fprintf (adapt_stream, "%x\r", read_register (GR96_REGNUM + j + 15));
- expect_prompt ();
- }
-
- for (j = 0; j < 128; j += 16)
- {
- fprintf (adapt_stream, "s lr%d,", j);
- for (i = 0; i < 15; ++i)
- fprintf (adapt_stream, "%x,", read_register (LR0_REGNUM + j + i));
- fprintf (adapt_stream, "%x\r", read_register (LR0_REGNUM + j + 15));
- expect_prompt ();
- }
-
- fprintf (adapt_stream, "s sr128,%x,%x,%x\r", read_register (IPC_REGNUM),
- read_register (IPA_REGNUM), read_register (IPB_REGNUM));
- expect_prompt ();
- fprintf (adapt_stream, "s sr133,%x,%x,%x\r", read_register (BP_REGNUM),
- read_register (FC_REGNUM), read_register (CR_REGNUM));
- expect_prompt ();
- fprintf (adapt_stream, "s sr131,%x\r", read_register (Q_REGNUM));
- expect_prompt ();
- fprintf (adapt_stream, "s sr0,");
- for (i=0 ; i<7 ; ++i)
- fprintf (adapt_stream, "%x,", read_register (VAB_REGNUM + i));
- expect_prompt ();
- fprintf (adapt_stream, "s sr7,");
- for (i=7; i<14 ; ++i)
- fprintf (adapt_stream, "%x,", read_register (VAB_REGNUM + i));
- expect_prompt ();
-}
-
-/* Store register REGNO, or all if REGNO == -1.
- Return errno value. */
-void
-adapt_store_register (regno)
- int regno;
-{
- /* printf("adapt_store_register() called.\n"); fflush(stdout); /* */
- if (regno == -1)
- adapt_store_registers ();
- else
- {
- char *name = get_reg_name (regno);
- fprintf (adapt_stream, "s %s,%x\r", name, read_register (regno));
- /* Setting GR1 changes the numbers of all the locals, so
- invalidate the register cache. Do this *after* calling
- read_register, because we want read_register to return the
- value that write_register has just stuffed into the registers
- array, not the value of the register fetched from the
- inferior. */
- if (regno == GR1_REGNUM)
- registers_changed ();
- expect_prompt ();
- }
-}
-
-/* Get ready to modify the registers array. On machines which store
- individual registers, this doesn't need to do anything. On machines
- which store all the registers in one fell swoop, this makes sure
- that registers contains all the registers from the program being
- debugged. */
-
-void
-adapt_prepare_to_store ()
-{
- /* Do nothing, since we can store individual regs */
-}
-
-static CORE_ADDR
-translate_addr(addr)
-CORE_ADDR addr;
-{
-#if defined(KERNEL_DEBUGGING)
- /* Check for a virtual address in the kernel */
- /* Assume physical address of ublock is in paddr_u register */
- if (addr >= UVADDR) {
- /* PADDR_U register holds the physical address of the ublock */
- CORE_ADDR i = (CORE_ADDR)read_register(PADDR_U_REGNUM);
- return(i + addr - (CORE_ADDR)UVADDR);
- } else {
- return(addr);
- }
-#else
- return(addr);
-#endif
-}
-
-
-/* FIXME! Merge these two. */
-int
-adapt_xfer_inferior_memory (memaddr, myaddr, len, write)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int write;
-{
-
- memaddr = translate_addr(memaddr);
-
- if (write)
- return adapt_write_inferior_memory (memaddr, myaddr, len);
- else
- return adapt_read_inferior_memory (memaddr, myaddr, len);
-}
-
-void
-adapt_files_info ()
-{
- printf_filtered("\tAttached to %s at %d baud and running program %s\n",
- dev_name, baudrate, prog_name);
- printf_filtered("\ton an %s processor.\n", processor_name[processor_type]);
-}
-
-/* Copy LEN bytes of data from debugger memory at MYADDR
- to inferior's memory at MEMADDR. Returns errno value.
- * sb/sh instructions don't work on unaligned addresses, when TU=1.
- */
-int
-adapt_write_inferior_memory (memaddr, myaddr, len)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
-{
- int i;
- unsigned int cps;
-
- /* Turn TU bit off so we can do 'sb' commands */
- cps = read_register(CPS_REGNUM);
- if (cps & 0x00000800)
- write_register(CPS_REGNUM,cps&~(0x00000800));
-
- for (i = 0; i < len; i++)
- {
- if ((i % 16) == 0)
- fprintf (adapt_stream, "sb %x,", memaddr + i);
- if ((i % 16) == 15 || i == len - 1)
- {
- fprintf (adapt_stream, "%x\r", ((unsigned char *)myaddr)[i]);
- expect_prompt ();
- }
- else
- fprintf (adapt_stream, "%x,", ((unsigned char *)myaddr)[i]);
- }
- /* Restore the old value of cps if the TU bit was on */
- if (cps & 0x00000800)
- write_register(CPS_REGNUM,cps);
- return len;
-}
-
-/* Read LEN bytes from inferior memory at MEMADDR. Put the result
- at debugger address MYADDR. Returns errno value. */
-int
-adapt_read_inferior_memory(memaddr, myaddr, len)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
-{
- int i;
-
- /* Number of bytes read so far. */
- int count;
-
- /* Starting address of this pass. */
- unsigned long startaddr;
-
- /* Number of bytes to read in this pass. */
- int len_this_pass;
-
- /* Note that this code works correctly if startaddr is just less
- than UINT_MAX (well, really CORE_ADDR_MAX if there was such a
- thing). That is, something like
- adapt_read_bytes (CORE_ADDR_MAX - 4, foo, 4)
- works--it never adds len to memaddr and gets 0. */
- /* However, something like
- adapt_read_bytes (CORE_ADDR_MAX - 3, foo, 4)
- doesn't need to work. Detect it and give up if there's an attempt
- to do that. */
-
- if (((memaddr - 1) + len) < memaddr)
- return EIO;
-
- startaddr = memaddr;
- count = 0;
- while (count < len)
- {
- len_this_pass = 16;
- if ((startaddr % 16) != 0)
- len_this_pass -= startaddr % 16;
- if (len_this_pass > (len - count))
- len_this_pass = (len - count);
-
- fprintf (adapt_stream, "db %x,%x\r", startaddr,
- (startaddr - 1) + len_this_pass);
-
-#ifdef NOTDEF /* Why do this */
- expect ("\n");
- /* Look for 8 hex digits. */
- i = 0;
- while (1)
- {
- if (isxdigit (readchar ()))
- ++i;
- else
- {
- expect_prompt ();
- error ("Hex digit expected from remote system.");
- }
- if (i >= 8)
- break;
- }
-#endif /* NOTDEF */
-
- expect (" ");
-
- for (i = 0; i < len_this_pass; i++)
- get_hex_byte (&myaddr[count++]);
-
- expect_prompt ();
-
- startaddr += len_this_pass;
- }
- return count;
-}
-
-#define MAX_BREAKS 8
-static int num_brkpts=0;
-static int
-adapt_insert_breakpoint(addr, save)
-CORE_ADDR addr;
-char *save; /* Throw away, let adapt save instructions */
-{
- if (num_brkpts < MAX_BREAKS) {
- num_brkpts++;
- fprintf (adapt_stream, "B %x", addr);
- fprintf (adapt_stream, "\r");
- expect_prompt ();
- return(0); /* Success */
- } else {
- fprintf_filtered(gdb_stderr,
- "Too many break points, break point not installed\n");
- return(1); /* Failure */
- }
-
-}
-static int
-adapt_remove_breakpoint(addr, save)
-CORE_ADDR addr;
-char *save; /* Throw away, let adapt save instructions */
-{
- if (num_brkpts > 0) {
- num_brkpts--;
- fprintf (adapt_stream, "BR %x", addr);
- fprintf (adapt_stream, "\r");
- fflush (adapt_stream);
- expect_prompt ();
- }
- return(0);
-}
-
-/* Clear the adapts notion of what the break points are */
-static int
-adapt_clear_breakpoints()
-{
- if (adapt_stream) {
- fprintf (adapt_stream, "BR"); /* Clear all break points */
- fprintf (adapt_stream, "\r");
- fflush(adapt_stream);
- expect_prompt ();
- }
- num_brkpts = 0;
-}
-static void
-adapt_mourn()
-{
- adapt_clear_breakpoints();
- pop_target (); /* Pop back to no-child state */
- generic_mourn_inferior ();
-}
-
-/* Display everthing we read in from the adapt until we match/see the
- * specified string
- */
-static int
-display_until(str)
-char *str;
-{
- int i=0,j,c;
-
- while (c=readchar()) {
- if (c==str[i]) {
- i++;
- if (i == strlen(str)) return;
- } else {
- if (i) {
- for (j=0 ; j<i ; j++) /* Put everthing we matched */
- putchar(str[j]);
- i=0;
- }
- putchar(c);
- }
- }
-
-}
-
-
-/* Put a command string, in args, out to the adapt. The adapt is assumed to
- be in raw mode, all writing/reading done through adapt_desc.
- Ouput from the adapt is placed on the users terminal until the
- prompt from the adapt is seen.
- FIXME: Can't handle commands that take input. */
-
-void
-adapt_com (args, fromtty)
- char *args;
- int fromtty;
-{
- if (!adapt_stream) {
- printf_filtered("Adapt not open. Use the 'target' command to open.\n");
- return;
- }
-
- /* Clear all input so only command relative output is displayed */
- slurp_input();
-
- switch(islower(args[0]) ? toupper(args[0]) : args[0]) {
- default:
- printf_filtered("Unknown/Unimplemented adapt command '%s'\n",args);
- break;
- case 'G': /* Go, begin execution */
- write(adapt_desc,args,strlen(args));
- write(adapt_desc,"\r",1);
- expect_prompt();
- break;
- case 'B': /* Break points, B or BR */
- case 'C': /* Check current 29k status (running/halted) */
- case 'D': /* Display data/registers */
- case 'I': /* Input from i/o space */
- case 'J': /* Jam an instruction */
- case 'K': /* Kill, stop execution */
- case 'L': /* Disassemble */
- case 'O': /* Output to i/o space */
- case 'T': /* Trace */
- case 'P': /* Pulse an input line */
- case 'X': /* Examine special purpose registers */
- case 'Z': /* Display trace buffer */
- write(adapt_desc,args,strlen(args));
- write(adapt_desc,"\r",1);
- expect(args); /* Don't display the command */
- display_until("# ");
- break;
- /* Begin commands that take input in the form 'c x,y[,z...]' */
- case 'S': /* Set memory or register */
- if (strchr(args,',')) { /* Assume it is properly formatted */
- write(adapt_desc,args,strlen(args));
- write(adapt_desc,"\r",1);
- expect_prompt();
- }
- break;
- }
-}
-
-/* Define the target subroutine names */
-
-struct target_ops adapt_ops ;
-
-static void
-init_adapt_ops(void)
-{
- adapt_ops.to_shortname = "adapt";
- adapt_ops.to_longname = "Remote AMD `Adapt' target";
- adapt_ops.to_doc = "Remote debug an AMD 290*0 using an `Adapt' monitor via RS232";
- adapt_ops.to_open = adapt_open;
- adapt_ops.to_close = adapt_close;
- adapt_ops.to_attach = adapt_attach;
- adapt_ops.to_post_attach = NULL;
- adapt_ops.to_require_attach = NULL;
- adapt_ops.to_detach = adapt_detach;
- adapt_ops.to_require_detach = NULL;
- adapt_ops.to_resume = adapt_resume;
- adapt_ops.to_wait = adapt_wait;
- adapt_ops.to_post_wait = NULL;
- adapt_ops.to_fetch_registers = adapt_fetch_register;
- adapt_ops.to_store_registers = adapt_store_register;
- adapt_ops.to_prepare_to_store = adapt_prepare_to_store;
- adapt_ops.to_xfer_memory = adapt_xfer_inferior_memory;
- adapt_ops.to_files_info = adapt_files_info;
- adapt_ops.to_insert_breakpoint = adapt_insert_breakpoint;
- adapt_ops.to_remove_breakpoint = adapt_remove_breakpoint;
- adapt_ops.to_terminal_init = 0;
- adapt_ops.to_terminal_inferior = 0;
- adapt_ops.to_terminal_ours_for_output = 0;
- adapt_ops.to_terminal_ours = 0;
- adapt_ops.to_terminal_info = 0;
- adapt_ops.to_kill = adapt_kill;
- adapt_ops.to_load = adapt_load;
- adapt_ops.to_lookup_symbol = 0;
- adapt_ops.to_create_inferior = adapt_create_inferior;
- adapt_ops.to_post_startup_inferior = NULL;
- adapt_ops.to_acknowledge_created_inferior = NULL;
- adapt_ops.to_clone_and_follow_inferior = NULL;
- adapt_ops.to_post_follow_inferior_by_clone = NULL;
- adapt_ops.to_insert_fork_catchpoint = NULL;
- adapt_ops.to_remove_fork_catchpoint = NULL;
- adapt_ops.to_insert_vfork_catchpoint = NULL;
- adapt_ops.to_remove_vfork_catchpoint = NULL;
- adapt_ops.to_has_forked = NULL;
- adapt_ops.to_has_vforked = NULL;
- adapt_ops.to_can_follow_vfork_prior_to_exec = NULL;
- adapt_ops.to_post_follow_vfork = NULL;
- adapt_ops.to_insert_exec_catchpoint = NULL;
- adapt_ops.to_remove_exec_catchpoint = NULL;
- adapt_ops.to_has_execd = NULL;
- adapt_ops.to_reported_exec_events_per_exec_call = NULL;
- adapt_ops.to_has_exited = NULL;
- adapt_ops.to_mourn_inferior = adapt_mourn;
- adapt_ops.to_can_run = 0;
- adapt_ops.to_notice_signals = 0;
- adapt_ops.to_thread_alive = 0;
- adapt_ops.to_stop = 0 ; /* process_stratum; */
- adapt_ops.to_pid_to_exec_file = NULL;
- adapt_ops.to_core_file_to_sym_file = NULL;
- adapt_ops.to_stratum = 0;
- adapt_ops.DONT_USE = 0 ;
- adapt_ops.to_has_all_memory = 1;
- adapt_ops.to_has_memory = 1;
- adapt_ops.to_has_stack = 1;
- adapt_ops.to_has_registers = 1;
- adapt_ops.to_has_execution = 0;
- adapt_ops.to_sections = 0;
- adapt_ops.to_sections_end = 0 ;
- adapt_ops.to_magic = OPS_MAGIC;
-} /* init_adapt_ops */
-
-void
-_initialize_remote_adapt ()
-{
- init_adapt_ops() ;
- add_target (&adapt_ops);
- add_com ("adapt <command>", class_obscure, adapt_com,
- "Send a command to the AMD Adapt remote monitor.");
-}