-/* Target-dependent code for the Fujitsu SPARCLITE for GDB, the GNU debugger.
- Copyright 1994 Free Software Foundation, Inc.
+/* Target dependent code for the Fujitsu SPARClite for GDB, the GNU debugger.
+ Copyright 1994, 1995, 1996, 1998, 1999, 2000, 2001
+ Free Software Foundation, Inc.
-This file is part of GDB.
+ 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 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.
+ 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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 "gdbcore.h"
#include "breakpoint.h"
+#include "target.h"
+#include "serial.h"
+#include "regcache.h"
+#include <sys/types.h>
+
+#if (!defined(__GO32__) && !defined(_WIN32)) || defined(__CYGWIN32__)
+#define HAVE_SOCKETS
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#endif
+
+static struct target_ops sparclite_ops;
+
+static char *remote_target_name = NULL;
+static serial_t remote_desc = NULL;
+static int serial_flag;
+#ifdef HAVE_SOCKETS
+static int udp_fd = -1;
+#endif
+
+static serial_t open_tty (char *name);
+static int send_resp (serial_t desc, char c);
+static void close_tty (void * ignore);
+#ifdef HAVE_SOCKETS
+static int recv_udp_buf (int fd, unsigned char *buf, int len, int timeout);
+static int send_udp_buf (int fd, unsigned char *buf, int len);
+#endif
+static void sparclite_open (char *name, int from_tty);
+static void sparclite_close (int quitting);
+static void download (char *target_name, char *args, int from_tty,
+ void (*write_routine) (bfd * from_bfd,
+ asection * from_sec,
+ file_ptr from_addr,
+ bfd_vma to_addr, int len),
+ void (*start_routine) (bfd_vma entry));
+static void sparclite_serial_start (bfd_vma entry);
+static void sparclite_serial_write (bfd * from_bfd, asection * from_sec,
+ file_ptr from_addr,
+ bfd_vma to_addr, int len);
+#ifdef HAVE_SOCKETS
+static unsigned short calc_checksum (unsigned char *buffer, int count);
+static void sparclite_udp_start (bfd_vma entry);
+static void sparclite_udp_write (bfd * from_bfd, asection * from_sec,
+ file_ptr from_addr, bfd_vma to_addr,
+ int len);
+#endif
+static void sparclite_download (char *filename, int from_tty);
#define DDA2_SUP_ASI 0xb000000
#define DDA1_SUP_ASI 0xb0000
#define DDA2_ASI_MASK 0xff000000
-#define DDA1_ASI_MASK 0xff0000
+#define DDA1_ASI_MASK 0xff0000
#define DIA2_SUP_MODE 0x8000
#define DIA1_SUP_MODE 0x4000
#define DDA2_ENABLE 0x100
#define DDA1_ENABLE 0x80
#define DIA2_ENABLE 0x40
#define DIA1_ENABLE 0x20
-#define DSINGLE_STEP 0x10
+#define DSINGLE_STEP 0x10 /* not used */
#define DDV_TYPE_MASK 0xc
#define DDV_TYPE_LOAD 0x0
#define DDV_TYPE_STORE 0x4
#define DDV_MASK 0x1
int
-sparclite_insert_watchpoint(addr, len, type)
- CORE_ADDR addr;
- int len;
- int type;
+sparclite_insert_watchpoint (CORE_ADDR addr, int len, int type)
{
-CORE_ADDR dcr;
+ CORE_ADDR dcr;
dcr = read_register (DCR_REGNUM);
if (!(dcr & DDA1_ENABLE))
- {
- write_register (DDA1_REGNUM, addr);
- dcr &= ~(DDA1_ASI_MASK | DDV_TYPE_MASK);
- dcr |= (DDA1_SUP_ASI | DDA1_ENABLE);
- if (type == 1)
- {
- write_register (DDV1_REGNUM, 0);
- write_register (DDV2_REGNUM, 0xffffffff);
- dcr |= (DDV_TYPE_LOAD & (~DDV_COND & ~DDV_MASK));
- }
- else if (type == 0)
- {
- write_register (DDV1_REGNUM, 0);
- write_register (DDV2_REGNUM, 0xffffffff);
- dcr |= (DDV_TYPE_STORE & (~DDV_COND & ~DDV_MASK));
- }
- else
- {
- write_register (DDV1_REGNUM, 0);
- write_register (DDV2_REGNUM, 0xffffffff);
- dcr |= (DDV_TYPE_ACCESS);
- }
- write_register (DCR_REGNUM, dcr);
- }
- else if (!(dcr & DDA2_ENABLE))
- {
- write_register (DDA2_REGNUM, addr);
- dcr &= ~(DDA2_ASI_MASK & DDV_TYPE_MASK);
- dcr |= (DDA2_SUP_ASI | DDA2_ENABLE);
- if (type == 1)
- {
- write_register (DDV1_REGNUM, 0);
- write_register (DDV2_REGNUM, 0xffffffff);
- dcr |= (DDV_TYPE_LOAD & ~DDV_COND & ~DDV_MASK);
- }
- else if (type == 0)
{
- write_register (DDV1_REGNUM, 0);
- write_register (DDV2_REGNUM, 0xffffffff);
- dcr |= (DDV_TYPE_STORE & ~DDV_COND & ~DDV_MASK);
+ write_register (DDA1_REGNUM, addr);
+ dcr &= ~(DDA1_ASI_MASK | DDV_TYPE_MASK);
+ dcr |= (DDA1_SUP_ASI | DDA1_ENABLE);
+ if (type == 1)
+ {
+ write_register (DDV1_REGNUM, 0);
+ write_register (DDV2_REGNUM, 0xffffffff);
+ dcr |= (DDV_TYPE_LOAD & (~DDV_COND & ~DDV_MASK));
+ }
+ else if (type == 0)
+ {
+ write_register (DDV1_REGNUM, 0);
+ write_register (DDV2_REGNUM, 0xffffffff);
+ dcr |= (DDV_TYPE_STORE & (~DDV_COND & ~DDV_MASK));
+ }
+ else
+ {
+ write_register (DDV1_REGNUM, 0);
+ write_register (DDV2_REGNUM, 0xffffffff);
+ dcr |= (DDV_TYPE_ACCESS);
+ }
+ write_register (DCR_REGNUM, dcr);
}
- else
+ else if (!(dcr & DDA2_ENABLE))
{
- write_register (DDV1_REGNUM, 0);
- write_register (DDV2_REGNUM, 0xffffffff);
- dcr |= (DDV_TYPE_ACCESS);
+ write_register (DDA2_REGNUM, addr);
+ dcr &= ~(DDA2_ASI_MASK & DDV_TYPE_MASK);
+ dcr |= (DDA2_SUP_ASI | DDA2_ENABLE);
+ if (type == 1)
+ {
+ write_register (DDV1_REGNUM, 0);
+ write_register (DDV2_REGNUM, 0xffffffff);
+ dcr |= (DDV_TYPE_LOAD & ~DDV_COND & ~DDV_MASK);
+ }
+ else if (type == 0)
+ {
+ write_register (DDV1_REGNUM, 0);
+ write_register (DDV2_REGNUM, 0xffffffff);
+ dcr |= (DDV_TYPE_STORE & ~DDV_COND & ~DDV_MASK);
+ }
+ else
+ {
+ write_register (DDV1_REGNUM, 0);
+ write_register (DDV2_REGNUM, 0xffffffff);
+ dcr |= (DDV_TYPE_ACCESS);
+ }
+ write_register (DCR_REGNUM, dcr);
}
- write_register (DCR_REGNUM, dcr);
- }
else
return -1;
return 0;
-}
+}
int
-sparclite_remove_watchpoint(addr, len, type)
- CORE_ADDR addr;
- int len;
- int type;
+sparclite_remove_watchpoint (CORE_ADDR addr, int len, int type)
{
-CORE_ADDR dcr, dda1, dda2;
+ CORE_ADDR dcr, dda1, dda2;
dcr = read_register (DCR_REGNUM);
dda1 = read_register (DDA1_REGNUM);
dda2 = read_register (DDA2_REGNUM);
- if ((dcr & DDA1_ENABLE) && addr == dda1) {
+ if ((dcr & DDA1_ENABLE) && addr == dda1)
write_register (DCR_REGNUM, (dcr & ~DDA1_ENABLE));
- }
- else if ((dcr & DDA2_ENABLE) && addr == dda2) {
+ else if ((dcr & DDA2_ENABLE) && addr == dda2)
write_register (DCR_REGNUM, (dcr & ~DDA2_ENABLE));
- }
else
return -1;
}
int
-sparclite_insert_hw_breakpoint(addr, len)
- CORE_ADDR addr;
- int len;
+sparclite_insert_hw_breakpoint (CORE_ADDR addr, int len)
{
-CORE_ADDR dcr;
+ CORE_ADDR dcr;
dcr = read_register (DCR_REGNUM);
-
- if (!(dcr & DIA1_ENABLE)) {
- write_register (DIA1_REGNUM, addr);
- write_register (DCR_REGNUM, (dcr | DIA1_ENABLE | DIA1_SUP_MODE));
- }
- else if (!(dcr & DIA2_ENABLE)) {
- write_register (DIA2_REGNUM, addr);
- write_register (DCR_REGNUM, (dcr | DIA2_ENABLE | DIA2_SUP_MODE));
- }
+
+ if (!(dcr & DIA1_ENABLE))
+ {
+ write_register (DIA1_REGNUM, addr);
+ write_register (DCR_REGNUM, (dcr | DIA1_ENABLE | DIA1_SUP_MODE));
+ }
+ else if (!(dcr & DIA2_ENABLE))
+ {
+ write_register (DIA2_REGNUM, addr);
+ write_register (DCR_REGNUM, (dcr | DIA2_ENABLE | DIA2_SUP_MODE));
+ }
else
return -1;
}
int
-sparclite_remove_hw_breakpoint(addr, shadow)
- CORE_ADDR addr;
- int shadow;
+sparclite_remove_hw_breakpoint (CORE_ADDR addr, int shadow)
{
-CORE_ADDR dcr, dia1, dia2;
+ CORE_ADDR dcr, dia1, dia2;
dcr = read_register (DCR_REGNUM);
dia1 = read_register (DIA1_REGNUM);
dia2 = read_register (DIA2_REGNUM);
-
- if ((dcr & DIA1_ENABLE) && addr == dia1) {
+
+ if ((dcr & DIA1_ENABLE) && addr == dia1)
write_register (DCR_REGNUM, (dcr & ~DIA1_ENABLE));
- }
- else if ((dcr & DIA2_ENABLE) && addr == dia2) {
+ else if ((dcr & DIA2_ENABLE) && addr == dia2)
write_register (DCR_REGNUM, (dcr & ~DIA2_ENABLE));
- }
else
return -1;
-
+
return 0;
}
int
-sparclite_check_watch_resources(type, cnt, ot)
- int type;
- int cnt;
- int ot;
-{
- if (type == bp_hardware_breakpoint) {
- if (TARGET_HW_BREAK_LIMIT == 0) return 0;
- else if (cnt <= TARGET_HW_BREAK_LIMIT) return 1;
- }
- else {
- if (TARGET_HW_WATCH_LIMIT == 0) return 0;
- else if (ot) return -1;
- else if (cnt <= TARGET_HW_WATCH_LIMIT) return 1;
- }
+sparclite_check_watch_resources (int type, int cnt, int ot)
+{
+ /* Watchpoints not supported on simulator. */
+ if (strcmp (target_shortname, "sim") == 0)
+ return 0;
+
+ if (type == bp_hardware_breakpoint)
+ {
+ if (TARGET_HW_BREAK_LIMIT == 0)
+ return 0;
+ else if (cnt <= TARGET_HW_BREAK_LIMIT)
+ return 1;
+ }
+ else
+ {
+ if (TARGET_HW_WATCH_LIMIT == 0)
+ return 0;
+ else if (ot)
+ return -1;
+ else if (cnt <= TARGET_HW_WATCH_LIMIT)
+ return 1;
+ }
return -1;
}
CORE_ADDR
-sparclite_stopped_data_address()
+sparclite_stopped_data_address (void)
{
CORE_ADDR dsr, dda1, dda2;
dda1 = read_register (DDA1_REGNUM);
dda2 = read_register (DDA2_REGNUM);
- if (dsr & 0x10) return dda1;
- else if (dsr & 0x20) return dda2;
- else return 0;
+ if (dsr & 0x10)
+ return dda1;
+ else if (dsr & 0x20)
+ return dda2;
+ else
+ return 0;
+}
+\f
+static serial_t
+open_tty (char *name)
+{
+ serial_t desc;
+
+ desc = SERIAL_OPEN (name);
+ if (!desc)
+ perror_with_name (name);
+
+ if (baud_rate != -1)
+ {
+ if (SERIAL_SETBAUDRATE (desc, baud_rate))
+ {
+ SERIAL_CLOSE (desc);
+ perror_with_name (name);
+ }
+ }
+
+ SERIAL_RAW (desc);
+
+ SERIAL_FLUSH_INPUT (desc);
+
+ return desc;
+}
+
+/* Read a single character from the remote end, masking it down to 7 bits. */
+
+static int
+readchar (serial_t desc, int timeout)
+{
+ int ch;
+ char s[10];
+
+ ch = SERIAL_READCHAR (desc, timeout);
+
+ switch (ch)
+ {
+ case SERIAL_EOF:
+ error ("SPARClite remote connection closed");
+ case SERIAL_ERROR:
+ perror_with_name ("SPARClite communication error");
+ case SERIAL_TIMEOUT:
+ error ("SPARClite remote timeout");
+ default:
+ if (remote_debug > 0)
+ {
+ sprintf (s, "[%02x]", ch & 0xff);
+ puts_debug ("read -->", s, "<--");
+ }
+ return ch;
+ }
+}
+
+static void
+debug_serial_write (serial_t desc, char *buf, int len)
+{
+ char s[10];
+
+ SERIAL_WRITE (desc, buf, len);
+ if (remote_debug > 0)
+ {
+ while (len-- > 0)
+ {
+ sprintf (s, "[%02x]", *buf & 0xff);
+ puts_debug ("Sent -->", s, "<--");
+ buf++;
+ }
+ }
+}
+
+
+static int
+send_resp (serial_t desc, char c)
+{
+ debug_serial_write (desc, &c, 1);
+ return readchar (desc, remote_timeout);
+}
+
+static void
+close_tty (void *ignore)
+{
+ if (!remote_desc)
+ return;
+
+ SERIAL_CLOSE (remote_desc);
+
+ remote_desc = NULL;
+}
+
+#ifdef HAVE_SOCKETS
+static int
+recv_udp_buf (int fd, unsigned char *buf, int len, int timeout)
+{
+ int cc;
+ fd_set readfds;
+
+ FD_ZERO (&readfds);
+ FD_SET (fd, &readfds);
+
+ if (timeout >= 0)
+ {
+ struct timeval timebuf;
+
+ timebuf.tv_sec = timeout;
+ timebuf.tv_usec = 0;
+ cc = select (fd + 1, &readfds, 0, 0, &timebuf);
+ }
+ else
+ cc = select (fd + 1, &readfds, 0, 0, 0);
+
+ if (cc == 0)
+ return 0;
+
+ if (cc != 1)
+ perror_with_name ("recv_udp_buf: Bad return value from select:");
+
+ cc = recv (fd, buf, len, 0);
+
+ if (cc < 0)
+ perror_with_name ("Got an error from recv: ");
+}
+
+static int
+send_udp_buf (int fd, unsigned char *buf, int len)
+{
+ int cc;
+
+ cc = send (fd, buf, len, 0);
+
+ if (cc == len)
+ return;
+
+ if (cc < 0)
+ perror_with_name ("Got an error from send: ");
+
+ error ("Short count in send: tried %d, sent %d\n", len, cc);
+}
+#endif /* HAVE_SOCKETS */
+
+static void
+sparclite_open (char *name, int from_tty)
+{
+ struct cleanup *old_chain;
+ int c;
+ char *p;
+
+ if (!name)
+ error ("You need to specify what device or hostname is associated with the SparcLite board.");
+
+ target_preopen (from_tty);
+
+ unpush_target (&sparclite_ops);
+
+ if (remote_target_name)
+ xfree (remote_target_name);
+
+ remote_target_name = xstrdup (name);
+
+ /* We need a 'serial' or 'udp' keyword to disambiguate host:port, which can
+ mean either a serial port on a terminal server, or the IP address of a
+ SPARClite demo board. If there's no colon, then it pretty much has to be
+ a local device (except for DOS... grrmble) */
+
+ p = strchr (name, ' ');
+
+ if (p)
+ {
+ *p++ = '\000';
+ while ((*p != '\000') && isspace (*p))
+ p++;
+
+ if (strncmp (name, "serial", strlen (name)) == 0)
+ serial_flag = 1;
+ else if (strncmp (name, "udp", strlen (name)) == 0)
+ serial_flag = 0;
+ else
+ error ("Must specify either `serial' or `udp'.");
+ }
+ else
+ {
+ p = name;
+
+ if (!strchr (name, ':'))
+ serial_flag = 1; /* No colon is unambiguous (local device) */
+ else
+ error ("Usage: target sparclite serial /dev/ttyb\n\
+or: target sparclite udp host");
+ }
+
+ if (serial_flag)
+ {
+ remote_desc = open_tty (p);
+
+ old_chain = make_cleanup (close_tty, 0 /*ignore*/);
+
+ c = send_resp (remote_desc, 0x00);
+
+ if (c != 0xaa)
+ error ("Unknown response (0x%x) from SparcLite. Try resetting the board.",
+ c);
+
+ c = send_resp (remote_desc, 0x55);
+
+ if (c != 0x55)
+ error ("Sparclite appears to be ill.");
+ }
+ else
+ {
+#ifdef HAVE_SOCKETS
+ struct hostent *he;
+ struct sockaddr_in sockaddr;
+ unsigned char buffer[100];
+ int cc;
+
+ /* Setup the socket. Must be raw UDP. */
+
+ he = gethostbyname (p);
+
+ if (!he)
+ error ("No such host %s.", p);
+
+ udp_fd = socket (PF_INET, SOCK_DGRAM, 0);
+
+ old_chain = make_cleanup (close, udp_fd);
+
+ sockaddr.sin_family = PF_INET;
+ sockaddr.sin_port = htons (7000);
+ memcpy (&sockaddr.sin_addr.s_addr, he->h_addr, sizeof (struct in_addr));
+
+ if (connect (udp_fd, &sockaddr, sizeof (sockaddr)))
+ perror_with_name ("Connect failed");
+
+ buffer[0] = 0x5;
+ buffer[1] = 0;
+
+ send_udp_buf (udp_fd, buffer, 2); /* Request version */
+ cc = recv_udp_buf (udp_fd, buffer, sizeof (buffer), 5); /* Get response */
+ if (cc == 0)
+ error ("SPARClite isn't responding.");
+
+ if (cc < 3)
+ error ("SPARClite appears to be ill.");
+#else
+ error ("UDP downloading is not supported for DOS hosts.");
+#endif /* HAVE_SOCKETS */
+ }
+
+ printf_unfiltered ("[SPARClite appears to be alive]\n");
+
+ push_target (&sparclite_ops);
+
+ discard_cleanups (old_chain);
+
+ return;
+}
+
+static void
+sparclite_close (int quitting)
+{
+ if (serial_flag)
+ close_tty (0);
+#ifdef HAVE_SOCKETS
+ else if (udp_fd != -1)
+ close (udp_fd);
+#endif
+}
+
+#define LOAD_ADDRESS 0x40000000
+
+static void
+download (char *target_name, char *args, int from_tty,
+ void (*write_routine) (bfd *from_bfd, asection *from_sec,
+ file_ptr from_addr, bfd_vma to_addr, int len),
+ void (*start_routine) (bfd_vma entry))
+{
+ struct cleanup *old_chain;
+ asection *section;
+ bfd *pbfd;
+ bfd_vma entry;
+ int i;
+#define WRITESIZE 1024
+ char *filename;
+ int quiet;
+ int nostart;
+
+ quiet = 0;
+ nostart = 0;
+ filename = NULL;
+
+ while (*args != '\000')
+ {
+ char *arg;
+
+ while (isspace (*args))
+ args++;
+
+ arg = args;
+
+ while ((*args != '\000') && !isspace (*args))
+ args++;
+
+ if (*args != '\000')
+ *args++ = '\000';
+
+ if (*arg != '-')
+ filename = arg;
+ else if (strncmp (arg, "-quiet", strlen (arg)) == 0)
+ quiet = 1;
+ else if (strncmp (arg, "-nostart", strlen (arg)) == 0)
+ nostart = 1;
+ else
+ error ("unknown option `%s'", arg);
+ }
+
+ if (!filename)
+ filename = get_exec_file (1);
+
+ pbfd = bfd_openr (filename, gnutarget);
+ if (pbfd == NULL)
+ {
+ perror_with_name (filename);
+ return;
+ }
+ old_chain = make_cleanup_bfd_close (pbfd);
+
+ if (!bfd_check_format (pbfd, bfd_object))
+ error ("\"%s\" is not an object file: %s", filename,
+ bfd_errmsg (bfd_get_error ()));
+
+ for (section = pbfd->sections; section; section = section->next)
+ {
+ if (bfd_get_section_flags (pbfd, section) & SEC_LOAD)
+ {
+ bfd_vma section_address;
+ bfd_size_type section_size;
+ file_ptr fptr;
+ const char *section_name;
+
+ section_name = bfd_get_section_name (pbfd, section);
+
+ section_address = bfd_get_section_vma (pbfd, section);
+
+ /* Adjust sections from a.out files, since they don't
+ carry their addresses with. */
+ if (bfd_get_flavour (pbfd) == bfd_target_aout_flavour)
+ {
+ if (strcmp (section_name, ".text") == 0)
+ section_address = bfd_get_start_address (pbfd);
+ else if (strcmp (section_name, ".data") == 0)
+ {
+ /* Read the first 8 bytes of the data section.
+ There should be the string 'DaTa' followed by
+ a word containing the actual section address. */
+ struct data_marker
+ {
+ char signature[4]; /* 'DaTa' */
+ unsigned char sdata[4]; /* &sdata */
+ }
+ marker;
+ bfd_get_section_contents (pbfd, section, &marker, 0,
+ sizeof (marker));
+ if (strncmp (marker.signature, "DaTa", 4) == 0)
+ {
+ if (TARGET_BYTE_ORDER == BIG_ENDIAN)
+ section_address = bfd_getb32 (marker.sdata);
+ else
+ section_address = bfd_getl32 (marker.sdata);
+ }
+ }
+ }
+
+ section_size = bfd_get_section_size_before_reloc (section);
+
+ if (!quiet)
+ printf_filtered ("[Loading section %s at 0x%x (%d bytes)]\n",
+ bfd_get_section_name (pbfd, section),
+ section_address,
+ section_size);
+
+ fptr = 0;
+ while (section_size > 0)
+ {
+ int count;
+ static char inds[] = "|/-\\";
+ static int k = 0;
+
+ QUIT;
+
+ count = min (section_size, WRITESIZE);
+
+ write_routine (pbfd, section, fptr, section_address, count);
+
+ if (!quiet)
+ {
+ printf_unfiltered ("\r%c", inds[k++ % 4]);
+ gdb_flush (gdb_stdout);
+ }
+
+ section_address += count;
+ fptr += count;
+ section_size -= count;
+ }
+ }
+ }
+
+ if (!nostart)
+ {
+ entry = bfd_get_start_address (pbfd);
+
+ if (!quiet)
+ printf_unfiltered ("[Starting %s at 0x%x]\n", filename, entry);
+
+ start_routine (entry);
+ }
+
+ do_cleanups (old_chain);
+}
+
+static void
+sparclite_serial_start (bfd_vma entry)
+{
+ char buffer[5];
+ int i;
+
+ buffer[0] = 0x03;
+ store_unsigned_integer (buffer + 1, 4, entry);
+
+ debug_serial_write (remote_desc, buffer, 1 + 4);
+ i = readchar (remote_desc, remote_timeout);
+ if (i != 0x55)
+ error ("Can't start SparcLite. Error code %d\n", i);
+}
+
+static void
+sparclite_serial_write (bfd *from_bfd, asection *from_sec, file_ptr from_addr,
+ bfd_vma to_addr, int len)
+{
+ char buffer[4 + 4 + WRITESIZE]; /* addr + len + data */
+ unsigned char checksum;
+ int i;
+
+ store_unsigned_integer (buffer, 4, to_addr); /* Address */
+ store_unsigned_integer (buffer + 4, 4, len); /* Length */
+
+ bfd_get_section_contents (from_bfd, from_sec, buffer + 8, from_addr, len);
+
+ checksum = 0;
+ for (i = 0; i < len; i++)
+ checksum += buffer[8 + i];
+
+ i = send_resp (remote_desc, 0x01);
+
+ if (i != 0x5a)
+ error ("Bad response from load command (0x%x)", i);
+
+ debug_serial_write (remote_desc, buffer, 4 + 4 + len);
+ i = readchar (remote_desc, remote_timeout);
+
+ if (i != checksum)
+ error ("Bad checksum from load command (0x%x)", i);
+}
+
+#ifdef HAVE_SOCKETS
+
+static unsigned short
+calc_checksum (unsigned char *buffer, int count)
+{
+ unsigned short checksum;
+
+ checksum = 0;
+ for (; count > 0; count -= 2, buffer += 2)
+ checksum += (*buffer << 8) | *(buffer + 1);
+
+ if (count != 0)
+ checksum += *buffer << 8;
+
+ return checksum;
+}
+
+static void
+sparclite_udp_start (bfd_vma entry)
+{
+ unsigned char buffer[6];
+ int i;
+
+ buffer[0] = 0x3;
+ buffer[1] = 0;
+ buffer[2] = entry >> 24;
+ 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 (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;
+ }
+}
+
+#endif /* HAVE_SOCKETS */
+
+static void
+sparclite_download (char *filename, int from_tty)
+{
+ if (!serial_flag)
+#ifdef HAVE_SOCKETS
+ download (remote_target_name, filename, from_tty, sparclite_udp_write,
+ sparclite_udp_start);
+#else
+ internal_error (__FILE__, __LINE__, "failed internal consistency check"); /* sparclite_open should prevent this! */
+#endif
+ else
+ download (remote_target_name, filename, from_tty, sparclite_serial_write,
+ sparclite_serial_start);
+}
+\f
+/* Set up the sparclite target vector. */
+
+static void
+init_sparclite_ops (void)
+{
+ sparclite_ops.to_shortname = "sparclite";
+ sparclite_ops.to_longname = "SPARClite download target";
+ sparclite_ops.to_doc = "Download to a remote SPARClite target board via serial of UDP.\n\
+Specify the device it is connected to (e.g. /dev/ttya).";
+ sparclite_ops.to_open = sparclite_open;
+ sparclite_ops.to_close = sparclite_close;
+ sparclite_ops.to_load = sparclite_download;
+ sparclite_ops.to_stratum = download_stratum;
+ sparclite_ops.to_magic = OPS_MAGIC;
+}
+
+void
+_initialize_sparcl_tdep (void)
+{
+ init_sparclite_ops ();
+ add_target (&sparclite_ops);
}
projects / deliverable / binutils-gdb.git / blobdiff