* sparcl-tdep.c: Add `sparclite' target for doing serial and udp
downloads to SPARClite demo boards.
This commit is contained in:
Stu Grossman
parent
f51b66ca50
commit
0e887539b0
2 changed files with 647 additions and 2 deletions
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@ -1,3 +1,16 @@
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Mon Jan 30 17:34:24 1995 Stu Grossman (grossman@cygnus.com)
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* sparcl-tdep.c: Add `sparclite' target for doing serial and udp
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downloads to SPARClite demo boards.
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Sun Jan 29 09:43:22 1995 Jim Kingdon (kingdon@lioth.cygnus.com)
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* remote.c, remote-pa.c: Remove #if 0'd icache code. It has had
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no hope of working as is for a long time (in particular, shebs' 27
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Jan 95 change confuses the issue further--target_read_memory and
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xfer_core_file do *not* do the same thing in this context).
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Revise comment.
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Sat Jan 28 13:40:46 1995 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)
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* elfread.c (elf_symtab_read): Do not test BSF_GLOBAL for
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@ -1,5 +1,5 @@
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/* Target-dependent code for the Fujitsu SPARCLITE for GDB, the GNU debugger.
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Copyright 1994 Free Software Foundation, Inc.
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/* Target dependent code for the Fujitsu SPARClite for GDB, the GNU debugger.
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Copyright 1994, 1995 Free Software Foundation, Inc.
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This file is part of GDB.
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@ -20,6 +20,47 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "defs.h"
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#include "gdbcore.h"
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#include "breakpoint.h"
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#include "target.h"
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#include "serial.h"
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netdb.h>
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#include <unistd.h>
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extern struct target_ops sparclite_ops; /* Forward decl */
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extern struct target_ops remote_ops;
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static char *remote_target_name = NULL;
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static serial_t remote_desc = NULL;
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static int udp_fd = -1;
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static int serial_flag;
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static serial_t open_tty PARAMS ((char *name));
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static int send_resp PARAMS ((serial_t desc, char c));
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static void close_tty PARAMS ((int ignore));
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static int recv_udp_buf PARAMS ((int fd, unsigned char *buf, int len, int timeout));
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static int send_udp_buf PARAMS ((int fd, unsigned char *buf, int len));
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static void sparclite_open PARAMS ((char *name, int from_tty));
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static void sparclite_close PARAMS ((int quitting));
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static void download PARAMS ((char *target_name, char *args, int from_tty,
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void (*write_routine) (bfd *from_bfd,
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asection *from_sec,
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file_ptr from_addr,
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bfd_vma to_addr, int len),
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void (*start_routine) (bfd_vma entry)));
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static void sparclite_serial_start PARAMS ((bfd_vma entry));
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static void sparclite_serial_write PARAMS ((bfd *from_bfd, asection *from_sec,
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file_ptr from_addr,
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bfd_vma to_addr, int len));
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static unsigned short calc_checksum PARAMS ((unsigned char *buffer,
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int count));
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static void sparclite_udp_start PARAMS ((bfd_vma entry));
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static void sparclite_udp_write PARAMS ((bfd *from_bfd, asection *from_sec,
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file_ptr from_addr, bfd_vma to_addr,
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int len));
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static void sparclite_download PARAMS ((char *filename, int from_tty));
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#define DDA2_SUP_ASI 0xb000000
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#define DDA1_SUP_ASI 0xb0000
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@ -212,3 +253,594 @@ sparclite_stopped_data_address ()
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else
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return 0;
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}
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static serial_t
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open_tty (name)
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char *name;
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{
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serial_t desc;
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desc = SERIAL_OPEN (name);
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if (!desc)
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perror_with_name (name);
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if (baud_rate != -1)
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{
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if (SERIAL_SETBAUDRATE (desc, baud_rate))
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{
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SERIAL_CLOSE (desc);
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perror_with_name (name);
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}
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}
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SERIAL_RAW (desc);
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SERIAL_FLUSH_INPUT (desc);
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return desc;
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}
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static int
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send_resp (desc, c)
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serial_t desc;
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char c;
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{
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int i;
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SERIAL_WRITE (desc, &c, 1);
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i = SERIAL_READCHAR (desc, 2);
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if (i >= 0)
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return i;
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switch (i)
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{
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case SERIAL_ERROR:
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perror_with_name ("Remote communication error");
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case SERIAL_TIMEOUT:
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error ("Remote timeout");
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case SERIAL_EOF:
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error ("Remote connection closed");
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}
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}
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static void
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close_tty (ignore)
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int ignore;
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{
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if (!remote_desc)
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return;
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SERIAL_CLOSE (remote_desc);
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remote_desc = NULL;
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}
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static int
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recv_udp_buf (fd, buf, len, timeout)
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int fd, len;
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unsigned char *buf;
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int timeout;
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{
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int cc;
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fd_set readfds;
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FD_ZERO (&readfds);
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FD_SET (fd, &readfds);
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if (timeout >= 0)
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{
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struct timeval timebuf;
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timebuf.tv_sec = timeout;
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timebuf.tv_usec = 0;
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cc = select (fd + 1, &readfds, 0, 0, &timebuf);
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}
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else
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cc = select (fd + 1, &readfds, 0, 0, 0);
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if (cc == 0)
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return 0;
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if (cc != 1)
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perror_with_name ("recv_udp_buf: Bad return value from select:");
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cc = recv (fd, buf, len, 0);
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if (cc < 0)
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perror_with_name ("Got an error from recv: ");
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}
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static int
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send_udp_buf (fd, buf, len)
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int fd, len;
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unsigned char *buf;
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{
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int cc;
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cc = send (fd, buf, len, 0);
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if (cc == len)
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return;
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if (cc < 0)
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perror_with_name ("Got an error from send: ");
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error ("Short count in send: tried %d, sent %d\n", len, cc);
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}
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static void
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sparclite_open (name, from_tty)
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char *name;
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int from_tty;
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{
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struct cleanup *old_chain;
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int c;
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char *p;
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if (!name)
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error ("You need to specify what device or hostname is associated with the SparcLite board.");
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target_preopen (from_tty);
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unpush_target (&sparclite_ops);
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if (remote_target_name)
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free (remote_target_name);
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remote_target_name = strsave (name);
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/* We need a 'serial' or 'udp' keyword to disambiguate host:port, which can
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mean either a serial port on a terminal server, or the IP address of a
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SPARClite demo board. If there's no colon, then it pretty much has to be
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a local device (except for DOS... grrmble) */
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p = strchr (name, ' ');
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if (p)
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{
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*p++ = '\000';
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while ((*p != '\000') && isspace (*p)) p++;
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if (strncmp (name, "serial", strlen (name)) == 0)
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serial_flag = 1;
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else if (strncmp (name, "udp", strlen (name)) == 0)
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serial_flag = 0;
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else
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error ("Must specify either `serial' or `udp'.");
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}
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else
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{
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p = name;
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if (!strchr (name, ':'))
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serial_flag = 1; /* No colon is unambiguous (local device) */
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else
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error ("Usage: target sparclite serial /dev/ttyb\n\
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or: target sparclite udp host");
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}
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if (serial_flag)
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{
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remote_desc = open_tty (p);
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old_chain = make_cleanup (close_tty, 0);
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c = send_resp (remote_desc, 0x00);
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if (c != 0xaa)
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error ("Unknown response (0x%x) from SparcLite. Try resetting the board.",
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c);
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c = send_resp (remote_desc, 0x55);
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if (c != 0x55)
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error ("Sparclite appears to be ill.");
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}
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else
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{
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struct hostent *he;
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struct sockaddr_in sockaddr;
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unsigned char buffer[100];
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int cc;
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/* Setup the socket. Must be raw UDP. */
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he = gethostbyname (p);
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if (!he)
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error ("No such host %s.", p);
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udp_fd = socket (PF_INET, SOCK_DGRAM, 0);
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old_chain = make_cleanup (close, udp_fd);
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sockaddr.sin_family = PF_INET;
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sockaddr.sin_port = htons(7000);
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memcpy (&sockaddr.sin_addr.s_addr, he->h_addr, sizeof (struct in_addr));
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if (connect (udp_fd, &sockaddr, sizeof(sockaddr)))
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perror_with_name ("Connect failed");
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buffer[0] = 0x5;
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buffer[1] = 0;
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send_udp_buf (udp_fd, buffer, 2); /* Request version */
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cc = recv_udp_buf (udp_fd, buffer, sizeof(buffer), 5); /* Get response */
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if (cc == 0)
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error ("SPARClite isn't responding.");
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if (cc < 3)
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error ("SPARClite appears to be ill.");
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}
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printf_unfiltered ("[SPARClite appears to be alive]\n");
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push_target (&sparclite_ops);
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discard_cleanups (old_chain);
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return;
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}
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static void
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sparclite_close (quitting)
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int quitting;
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{
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if (serial_flag)
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close_tty (0);
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else
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if (udp_fd != -1)
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close (udp_fd);
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}
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#define LOAD_ADDRESS 0x40000000
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static void
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download (target_name, args, from_tty, write_routine, start_routine)
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char *target_name;
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char *args;
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int from_tty;
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void (*write_routine)();
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void (*start_routine)();
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{
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struct cleanup *old_chain;
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asection *section;
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bfd *pbfd;
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bfd_vma entry;
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int i;
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#define WRITESIZE 1024
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char *filename;
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int quiet;
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int nostart;
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quiet = 0;
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nostart = 0;
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filename = NULL;
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while (*args != '\000')
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{
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char *arg;
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while (isspace (*args)) args++;
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arg = args;
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while ((*args != '\000') && !isspace (*args)) args++;
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if (*args != '\000')
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*args++ = '\000';
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if (*arg != '-')
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filename = arg;
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else if (strncmp (arg, "-quiet", strlen (arg)) == 0)
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quiet = 1;
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else if (strncmp (arg, "-nostart", strlen (arg)) == 0)
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nostart = 1;
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else
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error ("unknown option `%s'", arg);
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}
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if (!filename)
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filename = get_exec_file (1);
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pbfd = bfd_openr (filename, gnutarget);
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if (pbfd == NULL)
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{
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perror_with_name (filename);
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return;
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}
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old_chain = make_cleanup (bfd_close, pbfd);
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if (!bfd_check_format (pbfd, bfd_object))
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error ("\"%s\" is not an object file: %s", filename,
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bfd_errmsg (bfd_get_error ()));
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for (section = pbfd->sections; section; section = section->next)
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{
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if (bfd_get_section_flags (pbfd, section) & SEC_LOAD)
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{
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bfd_vma section_address;
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bfd_size_type section_size;
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file_ptr fptr;
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section_address = bfd_get_section_vma (pbfd, section);
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/* Adjust sections from a.out files, since they don't
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carry their addresses with. */
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if (bfd_get_flavour (pbfd) == bfd_target_aout_flavour)
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section_address += LOAD_ADDRESS;
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section_size = bfd_get_section_size_before_reloc (section);
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if (!quiet)
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printf_filtered ("[Loading section %s at 0x%x (%d bytes)]\n",
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bfd_get_section_name (pbfd, section),
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section_address,
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section_size);
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fptr = 0;
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while (section_size > 0)
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{
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int count;
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static char inds[] = "|/-\\";
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static int k = 0;
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QUIT;
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count = min (section_size, WRITESIZE);
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write_routine (pbfd, section, fptr, section_address, count);
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if (!quiet)
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{
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printf_unfiltered ("\r%c", inds[k++ % 4]);
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gdb_flush (gdb_stdout);
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}
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section_address += count;
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fptr += count;
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section_size -= count;
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}
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}
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}
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if (!nostart)
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{
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entry = bfd_get_start_address (pbfd);
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if (!quiet)
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printf_unfiltered ("[Starting %s at 0x%x]\n", filename, entry);
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start_routine (entry);
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}
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do_cleanups (old_chain);
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}
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static void
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sparclite_serial_start (entry)
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bfd_vma entry;
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{
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char buffer[5];
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int i;
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buffer[0] = 0x03;
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store_unsigned_integer (buffer + 1, 4, entry);
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SERIAL_WRITE (remote_desc, buffer, 1 + 4);
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i = SERIAL_READCHAR (remote_desc, 2);
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if (i != 0x55)
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error ("Can't start SparcLite. Error code %d\n", i);
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}
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static void
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sparclite_serial_write (from_bfd, from_sec, from_addr, to_addr, len)
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bfd *from_bfd;
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asection *from_sec;
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file_ptr from_addr;
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bfd_vma to_addr;
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int len;
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{
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char buffer[4 + 4 + WRITESIZE]; /* addr + len + data */
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unsigned char checksum;
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int i;
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store_unsigned_integer (buffer, 4, to_addr); /* Address */
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store_unsigned_integer (buffer + 4, 4, len); /* Length */
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bfd_get_section_contents (from_bfd, from_sec, buffer + 8, from_addr, len);
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checksum = 0;
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for (i = 0; i < len; i++)
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checksum += buffer[8 + i];
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i = send_resp (remote_desc, 0x01);
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if (i != 0x5a)
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error ("Bad response from load command (0x%x)", i);
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SERIAL_WRITE (remote_desc, buffer, 4 + 4 + len);
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i = SERIAL_READCHAR (remote_desc, 2);
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if (i < 0)
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error ("I/O error in serial code. Return code %d\n", i);
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if (i != checksum)
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error ("Bad checksum from load command (0x%x)", i);
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}
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static unsigned short
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calc_checksum (buffer, count)
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unsigned char *buffer;
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int count;
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{
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unsigned short checksum;
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checksum = 0;
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for (; count > 0; count -= 2, buffer += 2)
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checksum += (*buffer << 8) | *(buffer + 1);
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if (count != 0)
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checksum += *buffer << 8;
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return checksum;
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}
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static void
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sparclite_udp_start (entry)
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bfd_vma entry;
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{
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unsigned char buffer[6];
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int i;
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buffer[0] = 0x3;
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buffer[1] = 0;
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buffer[2] = entry >> 24;
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buffer[3] = entry >> 16;
|
||||
buffer[4] = entry >> 8;
|
||||
buffer[5] = entry;
|
||||
|
||||
send_udp_buf (udp_fd, buffer, 6); /* Send start addr */
|
||||
i = recv_udp_buf (udp_fd, buffer, sizeof(buffer), -1); /* Get response */
|
||||
|
||||
if (i < 1 || buffer[0] != 0x55)
|
||||
error ("Failed to take start address.");
|
||||
}
|
||||
|
||||
static void
|
||||
sparclite_udp_write (from_bfd, from_sec, from_addr, to_addr, len)
|
||||
bfd *from_bfd;
|
||||
asection *from_sec;
|
||||
file_ptr from_addr;
|
||||
bfd_vma to_addr;
|
||||
int len;
|
||||
{
|
||||
unsigned char buffer[2000];
|
||||
unsigned short checksum;
|
||||
static int pkt_num = 0;
|
||||
static unsigned long old_addr = -1;
|
||||
int i;
|
||||
|
||||
while (1)
|
||||
{
|
||||
if (to_addr != old_addr)
|
||||
{
|
||||
buffer[0] = 0x1; /* Load command */
|
||||
buffer[1] = 0x1; /* Loading address */
|
||||
buffer[2] = to_addr >> 24;
|
||||
buffer[3] = to_addr >> 16;
|
||||
buffer[4] = to_addr >> 8;
|
||||
buffer[5] = to_addr;
|
||||
|
||||
checksum = 0;
|
||||
for (i = 0; i < 6; i++)
|
||||
checksum += buffer[i];
|
||||
checksum &= 0xff;
|
||||
|
||||
send_udp_buf (udp_fd, buffer, 6);
|
||||
i = recv_udp_buf (udp_fd, buffer, sizeof buffer, -1);
|
||||
|
||||
if (i < 1)
|
||||
error ("Got back short checksum for load addr.");
|
||||
|
||||
if (checksum != buffer[0])
|
||||
error ("Got back bad checksum for load addr.");
|
||||
|
||||
pkt_num = 0; /* Load addr resets packet seq # */
|
||||
old_addr = to_addr;
|
||||
}
|
||||
|
||||
bfd_get_section_contents (from_bfd, from_sec, buffer + 6, from_addr,
|
||||
len);
|
||||
|
||||
checksum = calc_checksum (buffer + 6, len);
|
||||
|
||||
buffer[0] = 0x1; /* Load command */
|
||||
buffer[1] = 0x2; /* Loading data */
|
||||
buffer[2] = pkt_num >> 8;
|
||||
buffer[3] = pkt_num;
|
||||
buffer[4] = checksum >> 8;
|
||||
buffer[5] = checksum;
|
||||
|
||||
send_udp_buf (udp_fd, buffer, len + 6);
|
||||
i = recv_udp_buf (udp_fd, buffer, sizeof buffer, 3);
|
||||
|
||||
if (i == 0)
|
||||
{
|
||||
fprintf_unfiltered (gdb_stderr, "send_data: timeout sending %d bytes to address 0x%x retrying\n", len, to_addr);
|
||||
continue;
|
||||
}
|
||||
|
||||
if (buffer[0] != 0xff)
|
||||
error ("Got back bad response for load data.");
|
||||
|
||||
old_addr += len;
|
||||
pkt_num++;
|
||||
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
sparclite_download (filename, from_tty)
|
||||
char *filename;
|
||||
int from_tty;
|
||||
{
|
||||
if (!serial_flag)
|
||||
download (remote_target_name, filename, from_tty, sparclite_udp_write,
|
||||
sparclite_udp_start);
|
||||
else
|
||||
download (remote_target_name, filename, from_tty, sparclite_serial_write,
|
||||
sparclite_serial_start);
|
||||
}
|
||||
|
||||
/* Define the target subroutine names */
|
||||
|
||||
static struct target_ops sparclite_ops =
|
||||
{
|
||||
"sparclite", /* to_shortname */
|
||||
"SPARClite remote target", /* to_longname */
|
||||
"Use a remote SPARClite target board via a serial line, using a gdb-specific protocol.\n\
|
||||
Specify the serial device it is connected to (e.g. /dev/ttya).", /* to_doc */
|
||||
sparclite_open, /* to_open */
|
||||
sparclite_close, /* to_close */
|
||||
0, /* to_attach */
|
||||
0, /* to_detach */
|
||||
0, /* to_resume */
|
||||
0, /* to_wait */
|
||||
0, /* to_fetch_registers */
|
||||
0, /* to_store_registers */
|
||||
0, /* to_prepare_to_store */
|
||||
0, /* to_xfer_memory */
|
||||
0, /* to_files_info */
|
||||
0, /* to_insert_breakpoint */
|
||||
0, /* to_remove_breakpoint */
|
||||
0, /* to_terminal_init */
|
||||
0, /* to_terminal_inferior */
|
||||
0, /* to_terminal_ours_for_output */
|
||||
0, /* to_terminal_ours */
|
||||
0, /* to_terminal_info */
|
||||
0, /* to_kill */
|
||||
sparclite_download, /* to_load */
|
||||
0, /* to_lookup_symbol */
|
||||
0, /* to_create_inferior */
|
||||
0, /* to_mourn_inferior */
|
||||
0, /* to_can_run */
|
||||
0, /* to_notice_signals */
|
||||
0, /* to_stop */
|
||||
process_stratum, /* to_stratum */
|
||||
0, /* to_next */
|
||||
0, /* to_has_all_memory */
|
||||
0, /* to_has_memory */
|
||||
0, /* to_has_stack */
|
||||
0, /* to_has_registers */
|
||||
0, /* to_has_execution */
|
||||
0, /* sections */
|
||||
0, /* sections_end */
|
||||
OPS_MAGIC /* to_magic */
|
||||
};
|
||||
|
||||
void
|
||||
_initialize_sparcl_tdep ()
|
||||
{
|
||||
add_target (&sparclite_ops);
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue