Initial creation of sourceware repository

1 files changed, 0 insertions, 284 deletions

diff --git a/gdb/xmodem.c b/gdb/xmodem.c
deleted file mode 100644
index dd13b87..0000000
--- a/gdb/xmodem.c
+++ /dev/null
@@ -1,284 +0,0 @@
-/* XMODEM support for GDB, the GNU debugger.
-   Copyright 1995 Free Software Foundation, Inc.
-
-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.  */
-
-#include "defs.h"
-#include "serial.h"
-#include "target.h"
-#include "xmodem.h"
-
-/* These definitions are for xmodem protocol. */
-
-#define SOH	0x01
-#define STX	0x02
-#define ACK	0x06
-#define NAK	0x15
-#define EOT	0x04
-#define CANCEL	0x18
-
-static int blknum;		/* XMODEM block number */
-static int crcflag;		/* Sez we are using CRC's instead of cksums */
-
-static int
-readchar (desc, timeout)
-     serial_t desc;
-     int timeout;
-{
-  int c;
-
-  c = SERIAL_READCHAR (desc, timeout);
-
-  if (remote_debug > 0)
-    fputc_unfiltered (c, gdb_stderr);
-
-  if (c >= 0)
-    return c;
-
-  if (c == SERIAL_TIMEOUT)
-    error ("Timeout reading from remote system.");
-
-  perror_with_name ("xmodem.c:readchar()");
-}
-
-#define CRC16 0x1021		/* Generator polynomial (X^16 + X^12 + X^5 + 1) */
-
-static unsigned short *crctab;
-
-/* Call this to init the fast CRC-16 calculation table.  */
-
-static void
-crcinit ()
-{
-  static int crctab_inited = 0;
-  int val;
-
-  if (crctab_inited == 1)
-    return;
-
-  crctab = xmalloc (256 * sizeof (short));
-
-  for (val = 0; val <= 255; val++)
-    {
-      int i;
-      unsigned int crc;
-
-      crc = val << 8;
-
-      for (i = 0; i < 8; ++i)
-	{
-	  crc <<= 1;
-
-	  if (crc & 0x10000)
-	    crc ^= CRC16;
-	}
-
-      crctab [val] = crc;
-    }
-
-  crctab_inited = 1;
-}
-
-/* Calculate a CRC-16 for the LEN byte message pointed at by P.  */
-
-static unsigned short
-docrc (p, len)
-     unsigned char *p;
-     int len;
-{
-  unsigned short crc = 0;
-
-  while (len-- > 0)
-    crc = (crc << 8) ^ crctab [(crc >> 8) ^ *p++];
-
-  return crc;
-}
-
-/* Start up the transmit process.  Reset state variables.  Wait for receiver to
-   send NAK or CRC request.  */
-
-int
-xmodem_init_xfer (desc)
-     serial_t desc;
-{
-  int c;
-  int i;
-
-  blknum = 1;
-  crcflag = 0;
-  crcinit ();
-
-  for (i = 1; i <= 10; i++)
-    {
-      c = readchar (desc, 6);
-
-      switch (c)
-	{
-	case 'C':
-	  crcflag = 1;
-	case NAK:
-	  return 0;
-	default:
-	  fprintf_unfiltered (gdb_stderr, "xmodem_init_xfer: Got unexpected character %c (0%o)\n", c, c);
-	  continue;
-	case CANCEL:		/* target aborted load */
-	  fprintf_unfiltered (gdb_stderr, "Got a CANCEL from the target.\n");
-	  continue;
-	}
-    }
-  error ("xmodem_init_xfer:  Too many unexpected characters.");
-}
-
-/* Take 128 bytes of data and make a packet out of it.
- *
- *	Each packet looks like this:
- *	+-----+-------+-------+------+-----+
- *	| SOH | Seq1. | Seq2. | data | SUM |
- *	+-----+-------+-------+------+-----+
- *	SOH  = 0x01
- *	Seq1 = The sequence number.
- *	Seq2 = The complement of the sequence number.
- *	Data = A 128 bytes of data.
- *	SUM  = Add the contents of the 128 bytes and use the low-order
- *	       8 bits of the result.
- *
- * send_xmodem_packet fills in the XMODEM fields of PACKET and sends it to the
- * remote system.  PACKET must be XMODEM_PACKETSIZE bytes long.  The data must
- * start 3 bytes after the beginning of the packet to leave room for the
- * XMODEM header.  LEN is the length of the data portion of the packet (and
- * must be <= 128 bytes).  If it is < 128 bytes, ^Z padding will be added.
- */
-
-void
-xmodem_send_packet (desc, packet, len, hashmark)
-     serial_t desc;
-     unsigned char *packet;
-     int len;
-     int hashmark;
-{
-  int i;
-  int retries;
-  int pktlen;
-  int datasize;
-  
-  /* build the packet header */
-
-  packet[1] = blknum;
-  packet[2] = ~blknum;
-
-  blknum++;
-  
-  if (len <= XMODEM_DATASIZE)
-    {
-      packet[0] = SOH;
-      datasize = XMODEM_DATASIZE;
-    }
-  else if (len <= XMODEM_1KDATASIZE)
-    {
-      packet[0] = STX;
-      datasize = XMODEM_1KDATASIZE;
-    }
-  else
-    abort ();			/* Packet way too large */
-
-  /* Add ^Z padding if packet < 128 (or 1024) bytes */
-
-  memset (packet + 3 + len, '\026', datasize - len);
-
-  if (crcflag)
-    {
-      int crc;
-
-      crc = docrc (packet + 3, datasize);
-
-      packet[3 + datasize] = crc >> 8;
-      packet[3 + datasize + 1] = crc;
-      pktlen = datasize + 5;
-    }
-  else
-    {
-      int sum;
-
-      sum = 0;
-      for (i = 3; i < datasize + 3; i++)
-	sum += packet[i];
-
-      packet[3 + datasize] = sum; /* add the checksum */
-      pktlen = datasize + 4;
-    }
-
-  for (retries = 3; retries >= 0; retries--)
-    {
-      int c;
-
-      SERIAL_WRITE (desc, packet, pktlen);
-
-      c = readchar (desc, 3);
-      switch (c)
-	{
-	case ACK:
-	  return;
-	case NAK:
-	  if (!hashmark)
-	    continue;
-	  putchar_unfiltered ('-');
-	  gdb_flush (gdb_stdout);
-	  continue;
-	case CANCEL:
-	  error ("xmodem_send_packet: Transfer aborted by receiver.");
-	default:
-	  fprintf_unfiltered (gdb_stderr, "xmodem_send_packet: Got unexpected character %c (0%o)\n", c, c);
-	  continue;
-	}
-    }
-
-  SERIAL_WRITE (desc, "\004", 1); /* Send an EOT */
-
-  error ("xmodem_send_packet:  Excessive retries.");
-}
-
-/* Finish off the transfer.  Send out the EOT, and wait for an ACK.  */
-
-void
-xmodem_finish_xfer (desc)
-     serial_t desc;
-{
-  int retries;
-
-  for (retries = 10; retries >= 0; retries--)
-    {
-      int c;
-
-      SERIAL_WRITE (desc, "\004", 1); /* Send an EOT */
-
-      c = readchar (desc, 3);
-      switch (c)
-	{
-	case ACK:
-	  return;
-	case NAK:
-	  continue;
-	case CANCEL:
-	  error ("xmodem_finish_xfer: Transfer aborted by receiver.");
-	default:
-	  fprintf_unfiltered (gdb_stderr, "xmodem_send_packet: Got unexpected character %c (0%o)\n", c, c);
-	  continue;
-	}
-    }
-
-  error ("xmodem_finish_xfer:  Excessive retries.");
-}