-/* Remote target communications for the Macraigor Systems BDM Wiggler
- Copyright 1996, 1997 Free Software Foundation, Inc.
+/* Target communications support for Macraigor Systems' On-Chip Debugging
-This file is part of GDB.
+ Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2004 Free
+ Software Foundation, Inc.
-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 file is part of GDB.
-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 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.
-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 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 "gdbcore.h"
#include "bfd.h"
#include "symfile.h"
#include "target.h"
-#include "wait.h"
#include "gdbcmd.h"
#include "objfiles.h"
#include "gdb-stabs.h"
-#include "dcache.h"
#include <sys/types.h>
#include <signal.h>
#include "serial.h"
#include "ocd.h"
+#include "regcache.h"
/* Prototypes for local functions */
-static int wiggler_write_bytes PARAMS ((CORE_ADDR memaddr,
- char *myaddr, int len));
-
-static int wiggler_read_bytes PARAMS ((CORE_ADDR memaddr,
- char *myaddr, int len));
-
-static int wiggler_start_remote PARAMS ((char *dummy));
-
-static int readchar PARAMS ((int timeout));
-
-static void reset_packet PARAMS ((void));
-
-static void output_packet PARAMS ((void));
+static int ocd_read_bytes (CORE_ADDR memaddr, char *myaddr, int len);
-static int get_quoted_char PARAMS ((int timeout));
+static int ocd_start_remote (void *dummy);
-static void put_quoted_char PARAMS ((int c));
+static int readchar (int timeout);
-static void wiggler_interrupt PARAMS ((int signo));
+static void ocd_interrupt (int signo);
-static void wiggler_interrupt_twice PARAMS ((int signo));
+static void ocd_interrupt_twice (int signo);
-static void interrupt_query PARAMS ((void));
+static void interrupt_query (void);
-static unsigned char * do_command PARAMS ((int cmd, int *statusp, int *lenp));
+static unsigned char *ocd_do_command (int cmd, int *statusp, int *lenp);
-static void wiggler_put_packet PARAMS ((unsigned char *packet, int pktlen));
+static void ocd_put_packet (unsigned char *packet, int pktlen);
-static unsigned char * wiggler_get_packet PARAMS ((int cmd, int *pktlen, int timeout));
+static unsigned char *ocd_get_packet (int cmd, int *pktlen, int timeout);
static struct target_ops *current_ops = NULL;
static int last_run_status;
-/* This was 5 seconds, which is a long time to sit and wait.
- Unless this is going though some terminal server or multiplexer or
- other form of hairy serial connection, I would think 2 seconds would
- be plenty. */
-
-/* Changed to allow option to set timeout value.
- was static int remote_timeout = 2; */
-extern int remote_timeout;
-
/* Descriptor for I/O to remote machine. Initialize it to NULL so that
- wiggler_open knows that we don't have a file open when the program
+ ocd_open knows that we don't have a file open when the program
starts. */
-static serial_t wiggler_desc = NULL;
+static struct serial *ocd_desc = NULL;
\f
void
-wiggler_error (s, error_code)
- char *s;
- int error_code;
+ocd_error (char *s, int error_code)
{
char buf[100];
switch (error_code)
{
- case 0x1: s = "Unknown fault"; break;
- case 0x2: s = "Power failed"; break;
- case 0x3: s = "Cable disconnected"; break;
- case 0x4: s = "Couldn't enter BDM"; break;
- case 0x5: s = "Target stuck in reset"; break;
- case 0x6: s = "Port not configured"; break;
- case 0x7: s = "Write verify failed"; break;
- case 0x11: s = "Bus error"; break;
- case 0x12: s = "Checksum error"; break;
- case 0x13: s = "Illegal command"; break;
- case 0x14: s = "Parameter error"; break;
- case 0x15: s = "Internal error"; break;
- case 0x16: s = "Register buffer error"; break;
- case 0x80: s = "Flash erase error"; break;
+ case 0x1:
+ s = "Unknown fault";
+ break;
+ case 0x2:
+ s = "Power failed";
+ break;
+ case 0x3:
+ s = "Cable disconnected";
+ break;
+ case 0x4:
+ s = "Couldn't enter OCD mode";
+ break;
+ case 0x5:
+ s = "Target stuck in reset";
+ break;
+ case 0x6:
+ s = "OCD hasn't been initialized";
+ break;
+ case 0x7:
+ s = "Write verify failed";
+ break;
+ case 0x8:
+ s = "Reg buff error (during MPC5xx fp reg read/write)";
+ break;
+ case 0x9:
+ s = "Invalid CPU register access attempt failed";
+ break;
+ case 0x11:
+ s = "Bus error";
+ break;
+ case 0x12:
+ s = "Checksum error";
+ break;
+ case 0x13:
+ s = "Illegal command";
+ break;
+ case 0x14:
+ s = "Parameter error";
+ break;
+ case 0x15:
+ s = "Internal error";
+ break;
+ case 0x80:
+ s = "Flash erase error";
+ break;
default:
sprintf (buf, "Unknown error code %d", error_code);
s = buf;
}
- error (s);
+ error ("%s", s);
}
/* Return nonzero if the thread TH is still alive on the remote system. */
int
-wiggler_thread_alive (th)
- int th;
+ocd_thread_alive (ptid_t th)
{
return 1;
}
\f
/* Clean up connection to a remote debugger. */
-/* ARGSUSED */
void
-wiggler_close (quitting)
- int quitting;
+ocd_close (int quitting)
{
- if (wiggler_desc)
- SERIAL_CLOSE (wiggler_desc);
- wiggler_desc = NULL;
+ if (ocd_desc)
+ serial_close (ocd_desc);
+ ocd_desc = NULL;
}
/* Stub for catch_errors. */
static int
-wiggler_start_remote (dummy)
- char *dummy;
+ocd_start_remote (void *dummy)
{
unsigned char buf[10], *p;
int pktlen;
int status;
int error_code;
int speed;
- enum wiggler_target_type target_type;
-
- target_type = (enum wiggler_target_type)dummy;
-
- immediate_quit = 1; /* Allow user to interrupt it */
+ enum ocd_target_type target_type;
- SERIAL_SEND_BREAK (wiggler_desc); /* Wake up the wiggler */
+ target_type = *(enum ocd_target_type *) dummy;
- do_command (WIGGLER_AYT, &status, &pktlen);
+ immediate_quit++; /* Allow user to interrupt it */
- p = do_command (WIGGLER_GET_VERSION, &status, &pktlen);
-
- printf_unfiltered ("[Wiggler version %x.%x, capability 0x%x]\n",
- p[0], p[1], (p[2] << 16) | p[3]);
+ serial_send_break (ocd_desc); /* Wake up the wiggler */
-#if 1
speed = 80; /* Divide clock by 4000 */
- buf[0] = WIGGLER_INIT;
+ buf[0] = OCD_INIT;
buf[1] = speed >> 8;
buf[2] = speed & 0xff;
buf[3] = target_type;
- wiggler_put_packet (buf, 4); /* Init Wiggler params */
- p = wiggler_get_packet (buf[0], &pktlen, remote_timeout);
+ ocd_put_packet (buf, 4); /* Init OCD params */
+ p = ocd_get_packet (buf[0], &pktlen, remote_timeout);
if (pktlen < 2)
- error ("Truncated response packet from Wiggler");
+ error ("Truncated response packet from OCD device");
status = p[1];
error_code = p[2];
if (error_code != 0)
- wiggler_error ("WIGGLER_INIT:", error_code);
-#endif
+ ocd_error ("OCD_INIT:", error_code);
-#if 0
- /* Reset the target */
+ ocd_do_command (OCD_AYT, &status, &pktlen);
- do_command (WIGGLER_RESET_RUN, &status, &pktlen);
-/* do_command (WIGGLER_RESET, &status, &pktlen);*/
-#endif
+ p = ocd_do_command (OCD_GET_VERSION, &status, &pktlen);
+
+ printf_unfiltered ("[Wiggler version %x.%x, capability 0x%x]\n",
+ p[0], p[1], (p[2] << 16) | p[3]);
/* If processor is still running, stop it. */
- if (!(status & WIGGLER_FLAG_BDM))
- wiggler_stop ();
+ if (!(status & OCD_FLAG_BDM))
+ ocd_stop ();
-#if 1
- buf[0] = WIGGLER_SET_CTL_FLAGS;
+ /* When using a target box, we want to asynchronously return status when
+ target stops. The OCD_SET_CTL_FLAGS command is ignored by Wigglers.dll
+ when using a parallel Wiggler */
+ buf[0] = OCD_SET_CTL_FLAGS;
buf[1] = 0;
- buf[2] = 1; /* Asynchronously return status when target stops */
- wiggler_put_packet (buf, 3);
+ buf[2] = 1;
+ ocd_put_packet (buf, 3);
- p = wiggler_get_packet (buf[0], &pktlen, remote_timeout);
+ p = ocd_get_packet (buf[0], &pktlen, remote_timeout);
if (pktlen < 2)
- error ("Truncated response packet from Wiggler");
+ error ("Truncated response packet from OCD device");
status = p[1];
error_code = p[2];
if (error_code != 0)
- wiggler_error ("WIGGLER_SET_CTL_FLAGS:", error_code);
-#endif
+ ocd_error ("OCD_SET_CTL_FLAGS:", error_code);
- immediate_quit = 0;
+ immediate_quit--;
/* This is really the job of start_remote however, that makes an assumption
that the target is about to print out a status message of some sort. That
flush_cached_frames ();
registers_changed ();
stop_pc = read_pc ();
- set_current_frame (create_new_frame (read_fp (), stop_pc));
- select_frame (get_current_frame (), 0);
- print_stack_frame (selected_frame, -1, 1);
+ print_stack_frame (get_selected_frame (), 0, SRC_AND_LOC);
+
+ buf[0] = OCD_LOG_FILE;
+ buf[1] = 3; /* close existing WIGGLERS.LOG */
+ ocd_put_packet (buf, 2);
+ p = ocd_get_packet (buf[0], &pktlen, remote_timeout);
+
+ buf[0] = OCD_LOG_FILE;
+ buf[1] = 2; /* append to existing WIGGLERS.LOG */
+ ocd_put_packet (buf, 2);
+ p = ocd_get_packet (buf[0], &pktlen, remote_timeout);
return 1;
}
/* Open a connection to a remote debugger.
NAME is the filename used for communication. */
-static DCACHE *wiggler_dcache;
-
void
-wiggler_open (name, from_tty, target_type, ops)
- char *name;
- int from_tty;
- enum wiggler_target_type target_type;
- struct target_ops *ops;
+ocd_open (char *name, int from_tty, enum ocd_target_type target_type,
+ struct target_ops *ops)
{
+ unsigned char buf[10], *p;
+ int pktlen;
+
if (name == 0)
- error ("To open a Wiggler connection, you need to specify what serial\n\
-device the Wiggler is attached to (e.g. /dev/ttya).");
+ error ("To open an OCD connection, you need to specify the\n\
+device the OCD device is attached to (e.g. /dev/ttya).");
target_preopen (from_tty);
unpush_target (current_ops);
- wiggler_dcache = dcache_init (wiggler_read_bytes, wiggler_write_bytes);
-
- wiggler_desc = SERIAL_OPEN (name);
- if (!wiggler_desc)
+ ocd_desc = serial_open (name);
+ if (!ocd_desc)
perror_with_name (name);
if (baud_rate != -1)
{
- if (SERIAL_SETBAUDRATE (wiggler_desc, baud_rate))
+ if (serial_setbaudrate (ocd_desc, baud_rate))
{
- SERIAL_CLOSE (wiggler_desc);
+ serial_close (ocd_desc);
perror_with_name (name);
}
}
- SERIAL_RAW (wiggler_desc);
+ serial_raw (ocd_desc);
/* If there is something sitting in the buffer we might take it as a
response to a command, which would be bad. */
- SERIAL_FLUSH_INPUT (wiggler_desc);
+ serial_flush_input (ocd_desc);
if (from_tty)
{
variables, especially since GDB will someday have a notion of debugging
several processes. */
- inferior_pid = 42000;
+ inferior_ptid = pid_to_ptid (42000);
/* Start the remote connection; if error (0), discard this target.
In particular, if the user quits, be sure to discard it
(we'd be in an inconsistent state otherwise). */
- if (!catch_errors (wiggler_start_remote, (char *)target_type,
- "Couldn't establish connection to remote target\n", RETURN_MASK_ALL))
- pop_target();
+ if (!catch_errors (ocd_start_remote, &target_type,
+ "Couldn't establish connection to remote target\n",
+ RETURN_MASK_ALL))
+ {
+ pop_target ();
+ error ("Failed to connect to OCD.");
+ }
}
/* This takes a program previously attached to and detaches it. After
die when it hits one. */
void
-wiggler_detach (args, from_tty)
- char *args;
- int from_tty;
+ocd_detach (char *args, int from_tty)
{
if (args)
error ("Argument given to \"detach\" when remotely debugging.");
/* Tell the remote machine to resume. */
void
-wiggler_resume (pid, step, siggnal)
- int pid, step;
- enum target_signal siggnal;
+ocd_resume (ptid_t ptid, int step, enum target_signal siggnal)
{
int pktlen;
- dcache_flush (wiggler_dcache);
-
if (step)
- do_command (WIGGLER_STEP, &last_run_status, &pktlen);
+ ocd_do_command (OCD_STEP, &last_run_status, &pktlen);
else
- do_command (WIGGLER_RUN, &last_run_status, &pktlen);
+ ocd_do_command (OCD_RUN, &last_run_status, &pktlen);
}
\f
void
-wiggler_stop ()
+ocd_stop (void)
{
int status;
int pktlen;
- do_command (WIGGLER_STOP, &status, &pktlen);
+ ocd_do_command (OCD_STOP, &status, &pktlen);
- if (!(status & WIGGLER_FLAG_BDM))
+ if (!(status & OCD_FLAG_BDM))
error ("Can't stop target via BDM");
}
-static volatile int wiggler_interrupt_flag;
+static volatile int ocd_interrupt_flag;
/* Send ^C to target to halt it. Target will respond, and send us a
packet. */
static void
-wiggler_interrupt (signo)
- int signo;
+ocd_interrupt (int signo)
{
/* If this doesn't work, try more severe steps. */
- signal (signo, wiggler_interrupt_twice);
-
+ signal (signo, ocd_interrupt_twice);
+
if (remote_debug)
- printf_unfiltered ("wiggler_interrupt called\n");
+ printf_unfiltered ("ocd_interrupt called\n");
{
char buf[1];
- wiggler_stop ();
- buf[0] = WIGGLER_AYT;
- wiggler_put_packet (buf, 1);
- wiggler_interrupt_flag = 1;
+ ocd_stop ();
+ buf[0] = OCD_AYT;
+ ocd_put_packet (buf, 1);
+ ocd_interrupt_flag = 1;
}
}
-static void (*ofunc)();
+static void (*ofunc) ();
/* The user typed ^C twice. */
static void
-wiggler_interrupt_twice (signo)
- int signo;
+ocd_interrupt_twice (int signo)
{
signal (signo, ofunc);
-
+
interrupt_query ();
- signal (signo, wiggler_interrupt);
+ signal (signo, ocd_interrupt);
}
/* Ask the user what to do when an interrupt is received. */
static void
-interrupt_query ()
+interrupt_query (void)
{
target_terminal_ours ();
Give up (and stop debugging it)? "))
{
target_mourn_inferior ();
- return_to_top_level (RETURN_QUIT);
+ throw_exception (RETURN_QUIT);
}
target_terminal_inferior ();
means in the case of this target). */
int
-wiggler_wait ()
+ocd_wait (void)
{
unsigned char *p;
- int error_code, status;
+ int error_code;
int pktlen;
+ char buf[1];
- wiggler_interrupt_flag = 0;
+ ocd_interrupt_flag = 0;
- /* Target may already be stopped by the time we get here. */
+ /* Target might already be stopped by the time we get here. */
+ /* If we aren't already stopped, we need to loop until we've dropped
+ back into BDM mode */
- if (!(last_run_status & WIGGLER_FLAG_BDM))
+ while (!(last_run_status & OCD_FLAG_BDM))
{
- ofunc = (void (*)()) signal (SIGINT, wiggler_interrupt);
-
- p = wiggler_get_packet (WIGGLER_AYT, &pktlen, -1);
+ buf[0] = OCD_AYT;
+ ocd_put_packet (buf, 1);
+ p = ocd_get_packet (OCD_AYT, &pktlen, -1);
+ ofunc = (void (*)()) signal (SIGINT, ocd_interrupt);
signal (SIGINT, ofunc);
if (pktlen < 2)
- error ("Truncated response packet from Wiggler");
+ error ("Truncated response packet from OCD device");
- status = p[1];
+ last_run_status = p[1];
error_code = p[2];
if (error_code != 0)
- wiggler_error ("target_wait:", error_code);
+ ocd_error ("target_wait:", error_code);
- if (status & WIGGLER_FLAG_PWF)
- error ("Wiggler lost VCC at BDM interface.");
- else if (status & WIGGLER_FLAG_CABLE_DISC)
- error ("BDM cable appears to have been disconnected.");
-
- if (!(status & WIGGLER_FLAG_BDM))
- error ("Wiggler woke up, but wasn't stopped: 0x%x", status);
+ if (last_run_status & OCD_FLAG_PWF)
+ error ("OCD device lost VCC at BDM interface.");
+ else if (last_run_status & OCD_FLAG_CABLE_DISC)
+ error ("OCD device cable appears to have been disconnected.");
}
- if (wiggler_interrupt_flag)
+ if (ocd_interrupt_flag)
return 1;
else
return 0;
}
-/* Read registers from the Wiggler. Specify the starting and ending register
- number. Return the number of regs actually read in *NUMREGS. Returns a
- pointer to a static array containing the register contents. */
+/* Read registers from the OCD device. Specify the starting and ending
+ register number. Return the number of regs actually read in *NUMREGS.
+ Returns a pointer to a static array containing the register contents. */
unsigned char *
-wiggler_read_bdm_registers (first_bdm_regno, last_bdm_regno, reglen)
- int first_bdm_regno;
- int last_bdm_regno;
- int *reglen;
+ocd_read_bdm_registers (int first_bdm_regno, int last_bdm_regno, int *reglen)
{
unsigned char buf[10];
int i;
int error_code, status;
int pktlen;
- buf[0] = WIGGLER_READ_REGS;
+ buf[0] = OCD_READ_REGS;
buf[1] = first_bdm_regno >> 8;
buf[2] = first_bdm_regno & 0xff;
buf[3] = last_bdm_regno >> 8;
buf[4] = last_bdm_regno & 0xff;
- wiggler_put_packet (buf, 5);
- p = wiggler_get_packet (WIGGLER_READ_REGS, &pktlen, remote_timeout);
+ ocd_put_packet (buf, 5);
+ p = ocd_get_packet (OCD_READ_REGS, &pktlen, remote_timeout);
status = p[1];
error_code = p[2];
if (error_code != 0)
- wiggler_error ("read_bdm_registers:", error_code);
+ ocd_error ("read_bdm_registers:", error_code);
i = p[3];
if (i == 0)
/* Read register BDM_REGNO and returns its value ala read_register() */
CORE_ADDR
-wiggler_read_bdm_register (bdm_regno)
- int bdm_regno;
+ocd_read_bdm_register (int bdm_regno)
{
int reglen;
unsigned char *p;
CORE_ADDR regval;
- p = wiggler_read_bdm_registers (bdm_regno, bdm_regno, ®len);
+ p = ocd_read_bdm_registers (bdm_regno, bdm_regno, ®len);
regval = extract_unsigned_integer (p, reglen);
return regval;
}
void
-wiggler_write_bdm_registers (first_bdm_regno, regptr, reglen)
- int first_bdm_regno;
- unsigned char *regptr;
- int reglen;
+ocd_write_bdm_registers (int first_bdm_regno, unsigned char *regptr, int reglen)
{
unsigned char *buf;
unsigned char *p;
buf = alloca (4 + reglen);
- buf[0] = WIGGLER_WRITE_REGS;
+ buf[0] = OCD_WRITE_REGS;
buf[1] = first_bdm_regno >> 8;
buf[2] = first_bdm_regno & 0xff;
buf[3] = reglen;
memcpy (buf + 4, regptr, reglen);
- wiggler_put_packet (buf, 4 + reglen);
- p = wiggler_get_packet (WIGGLER_WRITE_REGS, &pktlen, remote_timeout);
+ ocd_put_packet (buf, 4 + reglen);
+ p = ocd_get_packet (OCD_WRITE_REGS, &pktlen, remote_timeout);
if (pktlen < 3)
- error ("Truncated response packet from Wiggler");
+ error ("Truncated response packet from OCD device");
status = p[1];
error_code = p[2];
if (error_code != 0)
- wiggler_error ("wiggler_write_bdm_registers:", error_code);
+ ocd_error ("ocd_write_bdm_registers:", error_code);
}
void
-wiggler_write_bdm_register (bdm_regno, reg)
- int bdm_regno;
- CORE_ADDR reg;
+ocd_write_bdm_register (int bdm_regno, CORE_ADDR reg)
{
unsigned char buf[4];
store_unsigned_integer (buf, 4, reg);
- wiggler_write_bdm_registers (bdm_regno, buf, 4);
+ ocd_write_bdm_registers (bdm_regno, buf, 4);
}
\f
-void
-wiggler_prepare_to_store ()
+void
+ocd_prepare_to_store (void)
{
}
\f
Returns number of bytes transferred, or 0 for error. */
-static int write_mem_command = WIGGLER_WRITE_MEM;
+static int write_mem_command = OCD_WRITE_MEM;
-static int
-wiggler_write_bytes (memaddr, myaddr, len)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
+int
+ocd_write_bytes (CORE_ADDR memaddr, char *myaddr, int len)
{
char buf[256 + 10];
unsigned char *p;
buf[7] = numbytes;
memcpy (&buf[8], myaddr, numbytes);
- wiggler_put_packet (buf, 8 + numbytes);
- p = wiggler_get_packet (WIGGLER_WRITE_MEM, &pktlen, remote_timeout);
+ ocd_put_packet (buf, 8 + numbytes);
+ p = ocd_get_packet (OCD_WRITE_MEM, &pktlen, remote_timeout);
if (pktlen < 3)
- error ("Truncated response packet from Wiggler");
+ error ("Truncated response packet from OCD device");
status = p[1];
error_code = p[2];
break;
}
else if (error_code != 0)
- wiggler_error ("wiggler_write_bytes:", error_code);
+ ocd_error ("ocd_write_bytes:", error_code);
len -= numbytes;
memaddr += numbytes;
Returns number of bytes transferred, or 0 for error. */
static int
-wiggler_read_bytes (memaddr, myaddr, len)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
+ocd_read_bytes (CORE_ADDR memaddr, char *myaddr, int len)
{
char buf[256 + 10];
unsigned char *p;
origlen = len;
- buf[0] = WIGGLER_READ_MEM;
+ buf[0] = OCD_READ_MEM;
buf[5] = 1; /* Read as bytes */
while (len > 0)
buf[6] = numbytes;
- wiggler_put_packet (buf, 7);
- p = wiggler_get_packet (WIGGLER_READ_MEM, &pktlen, remote_timeout);
+ ocd_put_packet (buf, 7);
+ p = ocd_get_packet (OCD_READ_MEM, &pktlen, remote_timeout);
if (pktlen < 4)
- error ("Truncated response packet from Wiggler");
+ error ("Truncated response packet from OCD device");
status = p[1];
error_code = p[2];
break;
}
else if (error_code != 0)
- wiggler_error ("wiggler_read_bytes:", error_code);
+ ocd_error ("ocd_read_bytes:", error_code);
memcpy (myaddr, &p[4], numbytes);
\f
/* Read or write LEN bytes from inferior memory at MEMADDR, transferring
to or from debugger address MYADDR. Write to inferior if SHOULD_WRITE is
- nonzero. Returns length of data written or read; 0 for error. */
+ nonzero. Returns length of data written or read; 0 for error. TARGET
+ is ignored. */
-/* ARGSUSED */
int
-wiggler_xfer_memory (memaddr, myaddr, len, should_write, target)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int should_write;
- struct target_ops *target; /* ignored */
+ocd_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int should_write,
+ struct mem_attrib *attrib, struct target_ops *target)
{
- return dcache_xfer_memory (wiggler_dcache, memaddr, myaddr, len, should_write);
+ int res;
+
+ if (should_write)
+ res = ocd_write_bytes (memaddr, myaddr, len);
+ else
+ res = ocd_read_bytes (memaddr, myaddr, len);
+
+ return res;
}
\f
void
-wiggler_files_info (ignore)
- struct target_ops *ignore;
+ocd_files_info (struct target_ops *ignore)
{
puts_filtered ("Debugging a target over a serial line.\n");
}
/* Read a single character from the remote side, handling wierd errors. */
static int
-readchar (timeout)
- int timeout;
+readchar (int timeout)
{
int ch;
- ch = SERIAL_READCHAR (wiggler_desc, timeout);
+ ch = serial_readchar (ocd_desc, timeout);
switch (ch)
{
}
}
-#if 0
-/* Read a character from the data stream, dequoting as necessary. SYN is
- treated special. Any SYNs appearing in the data stream are returned as the
- distinct value RAW_SYN (which has a value > 8 bits and therefore cannot be
- mistaken for real data). */
-
-static int
-get_quoted_char (timeout)
- int timeout;
-{
- int ch;
-
- ch = readchar (timeout);
-
- switch (ch)
- {
- case SERIAL_TIMEOUT:
- error ("Timeout in mid-packet, aborting");
- case SYN:
- return RAW_SYN;
- case DLE:
- ch = readchar (timeout);
- if (ch == SYN)
- return RAW_SYN;
- return ch & ~0100;
- default:
- return ch;
- }
-}
-
-static unsigned char pkt[256 * 2 + 10], *pktp; /* Worst case */
+/* Send a packet to the OCD device. The packet framed by a SYN character,
+ a byte count and a checksum. The byte count only counts the number of
+ bytes between the count and the checksum. A count of zero actually
+ means 256. Any SYNs within the packet (including the checksum and
+ count) must be quoted. The quote character must be quoted as well.
+ Quoting is done by replacing the character with the two-character sequence
+ DLE, {char} | 0100. Note that the quoting mechanism has no effect on the
+ byte count. */
static void
-reset_packet ()
-{
- pktp = pkt;
-}
-
-static void
-output_packet ()
-{
- if (SERIAL_WRITE (wiggler_desc, pkt, pktp - pkt))
- perror_with_name ("output_packet: write failed");
-
- reset_packet ();
-}
-
-/* Output a quoted character. SYNs and DLEs are quoted. Everything else goes
- through untouched. */
-
-static void
-put_quoted_char (c)
- int c;
-{
- switch (c)
- {
- case SYN:
- case DLE:
- *pktp++ = DLE;
- c |= 0100;
- }
-
- *pktp++ = c;
-}
-
-/* Send a packet to the Wiggler. The packet framed by a SYN character, a byte
- count and a checksum. The byte count only counts the number of bytes
- between the count and the checksum. A count of zero actually means 256.
- Any SYNs within the packet (including the checksum and count) must be
- quoted. The quote character must be quoted as well. Quoting is done by
- replacing the character with the two-character sequence DLE, {char} | 0100.
- Note that the quoting mechanism has no effect on the byte count.
- */
-
-static void
-stu_put_packet (buf, len)
- unsigned char *buf;
- int len;
-{
- unsigned char checksum;
- unsigned char c;
-
- if (len == 0 || len > 256)
- abort (); /* Can't represent 0 length packet */
-
- reset_packet ();
-
- checksum = 0;
-
- put_quoted_char (RAW_SYN);
-
- c = len;
-
- do
- {
- checksum += c;
-
- put_quoted_char (c);
-
- c = *buf++;
- }
- while (len-- > 0);
-
- put_quoted_char (-checksum & 0xff);
-
- output_packet ();
-}
-
-#else
-
-/* Send a packet to the Wiggler. The packet framed by a SYN character, a byte
- count and a checksum. The byte count only counts the number of bytes
- between the count and the checksum. A count of zero actually means 256.
- Any SYNs within the packet (including the checksum and count) must be
- quoted. The quote character must be quoted as well. Quoting is done by
- replacing the character with the two-character sequence DLE, {char} | 0100.
- Note that the quoting mechanism has no effect on the byte count.
- */
-
-static void
-wiggler_put_packet (buf, len)
- unsigned char *buf;
- int len;
+ocd_put_packet (unsigned char *buf, int len)
{
unsigned char checksum;
unsigned char c;
unsigned char *packet, *packet_ptr;
- packet = alloca (len + 1 + 1); /* packet + SYN + checksum */
+ packet = alloca (len + 1 + 1); /* packet + SYN + checksum */
packet_ptr = packet;
checksum = 0;
}
*packet_ptr++ = -checksum;
- if (SERIAL_WRITE (wiggler_desc, packet, packet_ptr - packet))
+ if (serial_write (ocd_desc, packet, packet_ptr - packet))
perror_with_name ("output_packet: write failed");
}
-#endif
-
-#if 0
-/* Get a packet from the Wiggler. Timeout is only enforced for the first byte
- of the packet. Subsequent bytes are expected to arrive in time <=
- remote_timeout. Returns a pointer to a static buffer containing the payload
- of the packet. *LENP contains the length of the packet.
-*/
-
-static unsigned char *
-stu_get_packet (cmd, lenp, timeout)
- unsigned char cmd;
- int *lenp;
-{
- int ch;
- int len;
- static unsigned char buf[256 + 10], *p;
- unsigned char checksum;
-
- find_packet:
-
- ch = get_quoted_char (timeout);
-
- if (ch < 0)
- error ("get_packet (readchar): %d", ch);
-
- if (ch != RAW_SYN)
- goto find_packet;
-
- found_syn: /* Found the start of a packet */
-
- p = buf;
- checksum = 0;
-
- len = get_quoted_char (remote_timeout);
-
- if (len == RAW_SYN)
- goto found_syn;
-
- checksum += len;
-
- if (len == 0)
- len = 256;
-
- len++; /* Include checksum */
-
- while (len-- > 0)
- {
- ch = get_quoted_char (remote_timeout);
- if (ch == RAW_SYN)
- goto found_syn;
-
- *p++ = ch;
- checksum += ch;
- }
-
- if (checksum != 0)
- goto find_packet;
-
- if (cmd != buf[0])
- error ("Response phase error. Got 0x%x, expected 0x%x", buf[0], cmd);
-
- *lenp = p - buf - 1;
- return buf;
-}
-
-#else
-/* Get a packet from the Wiggler. Timeout is only enforced for the first byte
- of the packet. Subsequent bytes are expected to arrive in time <=
- remote_timeout. Returns a pointer to a static buffer containing the payload
- of the packet. *LENP contains the length of the packet.
-*/
+/* Get a packet from the OCD device. Timeout is only enforced for the
+ first byte of the packet. Subsequent bytes are expected to arrive in
+ time <= remote_timeout. Returns a pointer to a static buffer containing
+ the payload of the packet. *LENP contains the length of the packet.
+ */
static unsigned char *
-wiggler_get_packet (cmd, lenp, timeout)
- int cmd;
- int *lenp;
+ocd_get_packet (int cmd, int *lenp, int timeout)
{
int ch;
int len;
- int i;
static unsigned char packet[512];
unsigned char *packet_ptr;
unsigned char checksum;
- find_packet:
-
ch = readchar (timeout);
if (ch < 0)
- error ("wiggler_get_packet (readchar): %d", ch);
+ error ("ocd_get_packet (readchar): %d", ch);
if (ch != 0x55)
- goto find_packet;
+ error ("ocd_get_packet (readchar): %d", ch);
/* Found the start of a packet */
ch = readchar (timeout);
if (ch < 0)
- error ("wiggler_get_packet (readchar): %d", ch);
+ error ("ocd_get_packet (readchar): %d", ch);
*packet_ptr++ = ch;
checksum += ch;
ch = readchar (timeout);
if (ch < 0)
- error ("wiggler_get_packet (readchar): %d", ch);
+ error ("ocd_get_packet (readchar): %d", ch);
*packet_ptr++ = ch;
checksum += ch;
ch = readchar (timeout);
if (ch < 0)
- error ("wiggler_get_packet (readchar): %d", ch);
+ error ("ocd_get_packet (readchar): %d", ch);
*packet_ptr++ = ch;
checksum += ch;
len = 8; /* write address, value read back */
break;
case 0x11: /* Bus error? */
- /* write address, read flag */
+ /* write address, read flag */
case 0x15: /* Internal error */
len = 5; /* error code, vector */
break;
case 0x0: /* Normal result */
switch (packet[0])
{
- case WIGGLER_AYT: /* Are You There? */
- case WIGGLER_SET_BAUD_RATE: /* Set Baud Rate */
- case WIGGLER_INIT: /* Initialize wiggler */
- case WIGGLER_SET_SPEED: /* Set Speed */
- case WIGGLER_SET_FUNC_CODE: /* Set Function Code */
- case WIGGLER_SET_CTL_FLAGS: /* Set Control Flags */
- case WIGGLER_SET_BUF_ADDR: /* Set Register Buffer Address */
- case WIGGLER_RUN: /* Run Target from PC */
- case WIGGLER_RUN_ADDR: /* Run Target from Specified Address */
- case WIGGLER_STOP: /* Stop Target */
- case WIGGLER_RESET_RUN: /* Reset Target and Run */
- case WIGGLER_RESET: /* Reset Target and Halt */
- case WIGGLER_STEP: /* Single Step */
- case WIGGLER_WRITE_REGS: /* Write Register */
- case WIGGLER_WRITE_MEM: /* Write Memory */
- case WIGGLER_FILL_MEM: /* Fill Memory */
- case WIGGLER_MOVE_MEM: /* Move Memory */
- case WIGGLER_WRITE_INT_MEM: /* Write Internal Memory */
- case WIGGLER_JUMP: /* Jump to Subroutine */
- case WIGGLER_ERASE_FLASH: /* Erase flash memory */
- case WIGGLER_PROGRAM_FLASH: /* Write flash memory */
- case WIGGLER_EXIT_MON: /* Exit the flash programming monitor */
- case WIGGLER_ENTER_MON: /* Enter the flash programming monitor */
+ case OCD_AYT: /* Are You There? */
+ case OCD_SET_BAUD_RATE: /* Set Baud Rate */
+ case OCD_INIT: /* Initialize OCD device */
+ case OCD_SET_SPEED: /* Set Speed */
+ case OCD_SET_FUNC_CODE: /* Set Function Code */
+ case OCD_SET_CTL_FLAGS: /* Set Control Flags */
+ case OCD_SET_BUF_ADDR: /* Set Register Buffer Address */
+ case OCD_RUN: /* Run Target from PC */
+ case OCD_RUN_ADDR: /* Run Target from Specified Address */
+ case OCD_STOP: /* Stop Target */
+ case OCD_RESET_RUN: /* Reset Target and Run */
+ case OCD_RESET: /* Reset Target and Halt */
+ case OCD_STEP: /* Single Step */
+ case OCD_WRITE_REGS: /* Write Register */
+ case OCD_WRITE_MEM: /* Write Memory */
+ case OCD_FILL_MEM: /* Fill Memory */
+ case OCD_MOVE_MEM: /* Move Memory */
+ case OCD_WRITE_INT_MEM: /* Write Internal Memory */
+ case OCD_JUMP: /* Jump to Subroutine */
+ case OCD_ERASE_FLASH: /* Erase flash memory */
+ case OCD_PROGRAM_FLASH: /* Write flash memory */
+ case OCD_EXIT_MON: /* Exit the flash programming monitor */
+ case OCD_ENTER_MON: /* Enter the flash programming monitor */
+ case OCD_LOG_FILE: /* Make Wigglers.dll save Wigglers.log */
+ case OCD_SET_CONNECTION: /* Set type of connection in Wigglers.dll */
len = 0;
break;
- case WIGGLER_GET_VERSION: /* Get Version */
+ case OCD_GET_VERSION: /* Get Version */
len = 10;
break;
- case WIGGLER_GET_STATUS_MASK: /* Get Status Mask */
+ case OCD_GET_STATUS_MASK: /* Get Status Mask */
len = 1;
break;
- case WIGGLER_GET_CTRS: /* Get Error Counters */
- case WIGGLER_READ_REGS: /* Read Register */
- case WIGGLER_READ_MEM: /* Read Memory */
- case WIGGLER_READ_INT_MEM: /* Read Internal Memory */
+ case OCD_GET_CTRS: /* Get Error Counters */
+ case OCD_READ_REGS: /* Read Register */
+ case OCD_READ_MEM: /* Read Memory */
+ case OCD_READ_INT_MEM: /* Read Internal Memory */
len = 257;
break;
default:
- fprintf_filtered (gdb_stderr, "Unknown packet type 0x%x\n", ch);
- goto find_packet;
+ error ("ocd_get_packet: unknown packet type 0x%x\n", ch);
}
}
ch = readchar (timeout);
if (ch < 0)
- error ("wiggler_get_packet (readchar): %d", ch);
+ error ("ocd_get_packet (readchar): %d", ch);
*packet_ptr++ = ch;
checksum += ch;
len = ch;
ch = readchar (timeout);
if (ch < 0)
- error ("wiggler_get_packet (readchar): %d", ch);
+ error ("ocd_get_packet (readchar): %d", ch);
*packet_ptr++ = ch;
checksum += ch;
}
if (checksum != 0)
- goto find_packet;
+ error ("ocd_get_packet: bad packet checksum");
if (cmd != -1 && cmd != packet[0])
error ("Response phase error. Got 0x%x, expected 0x%x", packet[0], cmd);
- *lenp = packet_ptr - packet - 1; /* Subtract checksum byte */
+ *lenp = packet_ptr - packet - 1; /* Subtract checksum byte */
return packet;
}
-#endif
/* Execute a simple (one-byte) command. Returns a pointer to the data
following the error code. */
static unsigned char *
-do_command (cmd, statusp, lenp)
- int cmd;
- int *statusp;
- int *lenp;
+ocd_do_command (int cmd, int *statusp, int *lenp)
{
unsigned char buf[100], *p;
int status, error_code;
char errbuf[100];
+ unsigned char logbuf[100];
+ int logpktlen;
+
buf[0] = cmd;
- wiggler_put_packet (buf, 1); /* Send command */
- p = wiggler_get_packet (*buf, lenp, remote_timeout);
+ ocd_put_packet (buf, 1); /* Send command */
+ p = ocd_get_packet (*buf, lenp, remote_timeout);
if (*lenp < 3)
- error ("Truncated response packet from Wiggler");
+ error ("Truncated response packet from OCD device");
status = p[1];
error_code = p[2];
if (error_code != 0)
{
- sprintf (errbuf, "do_command (0x%x):", cmd);
- wiggler_error (errbuf, error_code);
+ sprintf (errbuf, "ocd_do_command (0x%x):", cmd);
+ ocd_error (errbuf, error_code);
}
- if (status & WIGGLER_FLAG_PWF)
- error ("Wiggler can't detect VCC at BDM interface.");
- else if (status & WIGGLER_FLAG_CABLE_DISC)
+ if (status & OCD_FLAG_PWF)
+ error ("OCD device can't detect VCC at BDM interface.");
+ else if (status & OCD_FLAG_CABLE_DISC)
error ("BDM cable appears to be disconnected.");
*statusp = status;
+ logbuf[0] = OCD_LOG_FILE;
+ logbuf[1] = 3; /* close existing WIGGLERS.LOG */
+ ocd_put_packet (logbuf, 2);
+ ocd_get_packet (logbuf[0], &logpktlen, remote_timeout);
+
+ logbuf[0] = OCD_LOG_FILE;
+ logbuf[1] = 2; /* append to existing WIGGLERS.LOG */
+ ocd_put_packet (logbuf, 2);
+ ocd_get_packet (logbuf[0], &logpktlen, remote_timeout);
+
return p + 3;
}
\f
void
-wiggler_kill ()
+ocd_kill (void)
{
/* For some mysterious reason, wait_for_inferior calls kill instead of
mourn after it gets TARGET_WAITKIND_SIGNALLED. Work around it. */
}
void
-wiggler_mourn ()
+ocd_mourn (void)
{
unpush_target (current_ops);
generic_mourn_inferior ();
the program at that point. */
void
-wiggler_create_inferior (exec_file, args, env)
- char *exec_file;
- char *args;
- char **env;
+ocd_create_inferior (char *exec_file, char *args, char **env, int from_tty)
{
if (args && (*args != '\000'))
error ("Args are not supported by BDM.");
}
void
-wiggler_load (args, from_tty)
- char *args;
- int from_tty;
+ocd_load (char *args, int from_tty)
{
generic_load (args, from_tty);
- inferior_pid = 0;
+ inferior_ptid = null_ptid;
/* This is necessary because many things were based on the PC at the time that
we attached to the monitor, which is no longer valid now that we have loaded
clear_symtab_users ();
}
+/* This should be defined for each target */
+/* But we want to be able to compile this file for some configurations
+ not yet supported fully */
+
+#define BDM_BREAKPOINT {0x0,0x0,0x0,0x0} /* For ppc 8xx */
+
/* BDM (at least on CPU32) uses a different breakpoint */
-static int
-wiggler_insert_breakpoint (addr, contents_cache)
- CORE_ADDR addr;
- char *contents_cache;
+int
+ocd_insert_breakpoint (CORE_ADDR addr, char *contents_cache)
{
- static char break_insn[] = {BDM_BREAKPOINT};
+ static char break_insn[] = BDM_BREAKPOINT;
int val;
- val = target_read_memory (addr, contents_cache, sizeof break_insn);
+ val = target_read_memory (addr, contents_cache, sizeof (break_insn));
if (val == 0)
- val = target_write_memory (addr, break_insn, sizeof break_insn);
+ val = target_write_memory (addr, break_insn, sizeof (break_insn));
+
+ return val;
+}
+
+int
+ocd_remove_breakpoint (CORE_ADDR addr, char *contents_cache)
+{
+ static char break_insn[] = BDM_BREAKPOINT;
+ int val;
+
+ val = target_write_memory (addr, contents_cache, sizeof (break_insn));
return val;
}
static void
-bdm_command (args, from_tty)
- char *args;
- int from_tty;
+bdm_command (char *args, int from_tty)
{
error ("bdm command must be followed by `reset'");
}
static void
-bdm_reset_command (args, from_tty)
- char *args;
- int from_tty;
+bdm_reset_command (char *args, int from_tty)
{
int status, pktlen;
- if (!wiggler_desc)
- error ("Not connected to wiggler.");
+ if (!ocd_desc)
+ error ("Not connected to OCD device.");
- do_command (WIGGLER_RESET, &status, &pktlen);
- dcache_flush (wiggler_dcache);
+ ocd_do_command (OCD_RESET, &status, &pktlen);
+ dcache_invalidate (target_dcache);
registers_changed ();
}
static void
-bdm_restart_command (args, from_tty)
- char *args;
- int from_tty;
+bdm_restart_command (char *args, int from_tty)
{
int status, pktlen;
- if (!wiggler_desc)
- error ("Not connected to wiggler.");
+ if (!ocd_desc)
+ error ("Not connected to OCD device.");
- do_command (WIGGLER_RESET_RUN, &status, &pktlen);
+ ocd_do_command (OCD_RESET_RUN, &status, &pktlen);
last_run_status = status;
clear_proceed_status ();
wait_for_inferior ();
generic_load from trying to set the PC. */
static void
-noop_store_registers (regno)
- int regno;
+noop_store_registers (int regno)
{
}
static void
-bdm_update_flash_command (args, from_tty)
- char *args;
- int from_tty;
+bdm_update_flash_command (char *args, int from_tty)
{
int status, pktlen;
- struct cleanup *old_chain;
- void (*store_registers_tmp) PARAMS ((int));
+ struct cleanup *old_chain;
+ void (*store_registers_tmp) (int);
- if (!wiggler_desc)
- error ("Not connected to wiggler.");
+ if (!ocd_desc)
+ error ("Not connected to OCD device.");
if (!args)
- error ("Must specify file containing new Wiggler code.");
+ error ("Must specify file containing new OCD code.");
-/* old_chain = make_cleanup (flash_cleanup, 0);*/
+/* old_chain = make_cleanup (flash_cleanup, 0); */
- do_command (WIGGLER_ENTER_MON, &status, &pktlen);
+ ocd_do_command (OCD_ENTER_MON, &status, &pktlen);
- do_command (WIGGLER_ERASE_FLASH, &status, &pktlen);
+ ocd_do_command (OCD_ERASE_FLASH, &status, &pktlen);
- write_mem_command = WIGGLER_PROGRAM_FLASH;
+ write_mem_command = OCD_PROGRAM_FLASH;
store_registers_tmp = current_target.to_store_registers;
current_target.to_store_registers = noop_store_registers;
generic_load (args, from_tty);
current_target.to_store_registers = store_registers_tmp;
- write_mem_command = WIGGLER_WRITE_MEM;
-
- do_command (WIGGLER_EXIT_MON, &status, &pktlen);
-
-/* discard_cleanups (old_chain);*/
-}
-
-static void
-bdm_read_register_command (args, from_tty)
- char *args;
- int from_tty;
-{
- /* XXX repeat should go on to the next register */
+ write_mem_command = OCD_WRITE_MEM;
- if (!wiggler_desc)
- error ("Not connected to wiggler.");
-
- if (!args)
- error ("Must specify BDM register number.");
+ ocd_do_command (OCD_EXIT_MON, &status, &pktlen);
+/* discard_cleanups (old_chain); */
}
\f
+extern initialize_file_ftype _initialize_remote_ocd; /* -Wmissing-prototypes */
+
void
-_initialize_remote_wiggler ()
+_initialize_remote_ocd (void)
{
extern struct cmd_list_element *cmdlist;
- static struct cmd_list_element *bdm_cmd_list = NULL;
+ static struct cmd_list_element *ocd_cmd_list = NULL;
- add_show_from_set (add_set_cmd ("remotetimeout", no_class,
- var_integer, (char *)&remote_timeout,
- "Set timeout value for remote read.\n", &setlist),
- &showlist);
+ deprecated_add_show_from_set
+ (add_set_cmd ("remotetimeout", no_class,
+ var_integer, (char *) &remote_timeout,
+ "Set timeout value for remote read.\n", &setlist),
+ &showlist);
- add_prefix_cmd ("bdm", class_obscure, bdm_command, "", &bdm_cmd_list, "bdm ",
+ add_prefix_cmd ("ocd", class_obscure, bdm_command, "", &ocd_cmd_list, "ocd ",
0, &cmdlist);
- add_cmd ("reset", class_obscure, bdm_reset_command, "", &bdm_cmd_list);
- add_cmd ("restart", class_obscure, bdm_restart_command, "", &bdm_cmd_list);
- add_cmd ("update-flash", class_obscure, bdm_update_flash_command, "", &bdm_cmd_list);
- /* add_cmd ("read-register", class_obscure, bdm_read_register_command, "", &bdm_cmd_list);*/
+ add_cmd ("reset", class_obscure, bdm_reset_command, "", &ocd_cmd_list);
+ add_cmd ("restart", class_obscure, bdm_restart_command, "", &ocd_cmd_list);
+ add_cmd ("update-flash", class_obscure, bdm_update_flash_command, "", &ocd_cmd_list);
}
projects / deliverable / binutils-gdb.git / blobdiff