/* Remote target communications for serial-line targets using SDS' protocol.
Copyright 1997 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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. */
/* This interface was written by studying the behavior of the SDS
monitor on an ADS 821/860 board, and by consulting the
#include "bfd.h"
#include "symfile.h"
#include "target.h"
-#include "wait.h"
+#include "gdb_wait.h"
#include "gdbcmd.h"
#include "objfiles.h"
#include "gdb-stabs.h"
#include <signal.h>
#include "serial.h"
+extern void _initialize_remote_sds PARAMS ((void));
+
/* Declarations of local functions. */
static int sds_write_bytes PARAMS ((CORE_ADDR, char *, int));
static int sds_read_bytes PARAMS ((CORE_ADDR, char *, int));
-static void sds_files_info PARAMS ((struct target_ops *ignore));
+static void sds_files_info PARAMS ((struct target_ops * ignore));
static int sds_xfer_memory PARAMS ((CORE_ADDR, char *,
int, int, struct target_ops *));
static void sds_resume PARAMS ((int, int, enum target_signal));
-static int sds_start_remote PARAMS ((char *));
+static int sds_start_remote PARAMS ((PTR));
static void sds_open PARAMS ((char *, int));
static int sds_remove_breakpoint PARAMS ((CORE_ADDR, char *));
+static void init_sds_ops PARAMS ((void));
+
+static void sds_command PARAMS ((char *args, int from_tty));
+
+/* Define the target operations vector. */
-static struct target_ops sds_ops; /* Forward decl */
+static struct target_ops sds_ops;
/* 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 sds_timeout = 2; */
static int sds_timeout = 2;
/* Descriptor for I/O to remote machine. Initialize it to NULL so
static int just_started;
static int message_pending;
-
\f
+
/* Clean up connection to a remote debugger. */
/* ARGSUSED */
static int
sds_start_remote (dummy)
- char *dummy;
+ PTR dummy;
{
char c;
unsigned char buf[200];
/* 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 (sds_start_remote, (char *)0,
+ if (!catch_errors (sds_start_remote, NULL,
"Couldn't establish connection to remote target\n",
RETURN_MASK_ALL))
pop_target ();
return a - '0';
else if (a >= 'a' && a <= 'f')
return a - 'a' + 10;
- else
+ else
error ("Reply contains invalid hex digit %d", a);
}
int nib;
{
if (nib < 10)
- return '0'+nib;
+ return '0' + nib;
else
- return 'a'+nib-10;
+ return 'a' + nib - 10;
}
static int
{
/* Collect the next three bytes into a number. */
sum = ((long) *inbuf++) << 16;
- sum |= ((long) *inbuf++) << 8;
+ sum |= ((long) *inbuf++) << 8;
sum |= ((long) *inbuf++);
/* Spit out 4 6-bit encodings. */
*p++ = ((sum >> 18) & 0x3f) + '0';
*p++ = ((sum >> 12) & 0x3f) + '0';
- *p++ = ((sum >> 6) & 0x3f) + '0';
+ *p++ = ((sum >> 6) & 0x3f) + '0';
*p++ = (sum & 0x3f) + '0';
}
return (p - outbuf);
for (i = 0; i < len; i += 4)
{
/* Collect 4 6-bit digits. */
- sum = (*inbuf++ - '0') << 18;
+ sum = (*inbuf++ - '0') << 18;
sum |= (*inbuf++ - '0') << 12;
- sum |= (*inbuf++ - '0') << 6;
+ sum |= (*inbuf++ - '0') << 6;
sum |= (*inbuf++ - '0');
/* Now take the resulting 24-bit number and get three bytes out
of it. */
*outbuf++ = (sum >> 16) & 0xff;
- *outbuf++ = (sum >> 8) & 0xff;
+ *outbuf++ = (sum >> 8) & 0xff;
*outbuf++ = sum & 0xff;
}
return (len / 4) * 3;
}
-
\f
+
/* Tell the remote machine to resume. */
static enum target_signal last_sent_signal = TARGET_SIGNAL_0;
last_sent_step = step;
buf[0] = (step ? 21 : 20);
- buf[1] = 0; /* (should be signal?) */
+ buf[1] = 0; /* (should be signal?) */
sds_send (buf, 2);
}
/* If this doesn't work, try more severe steps. */
signal (signo, sds_interrupt_twice);
-
+
if (remote_debug)
- printf_unfiltered ("sds_interrupt called\n");
+ fprintf_unfiltered (gdb_stdlog, "sds_interrupt called\n");
buf[0] = 25;
sds_send (buf, 1);
}
-static void (*ofunc)();
+static void (*ofunc) ();
/* The user typed ^C twice. */
int signo;
{
signal (signo, ofunc);
-
+
interrupt_query ();
signal (signo, sds_interrupt);
retlen = sds_send (buf, 1);
if (remote_debug)
{
- fprintf_unfiltered (gdb_stderr, "Signals: %04x %02x %02x\n",
- ((int) buf[0]) << 8 + buf[1],
+ fprintf_unfiltered (gdb_stdlog, "Signals: %02x%02x %02x %02x\n",
+ buf[0], buf[1],
buf[2], buf[3]);
}
message_pending = 0;
goto got_status;
}
}
- got_status:
+got_status:
return inferior_pid;
}
{
unsigned char buf[PBUFSIZ];
int i, retlen;
- char *p;
char regs[REGISTER_BYTES];
/* Unimplemented registers read as all bits zero. */
/* (should warn about reply too short) */
for (i = 0; i < NUM_REGS; i++)
- supply_register (i, ®s[REGISTER_BYTE(i)]);
+ supply_register (i, ®s[REGISTER_BYTE (i)]);
}
/* Prepare to store registers. Since we may send them all, we have to
read out the ones we don't want to change first. */
-static void
+static void
sds_prepare_to_store ()
{
/* Make sure the entire registers array is valid. */
- read_register_bytes (0, (char *)NULL, REGISTER_BYTES);
+ read_register_bytes (0, (char *) NULL, REGISTER_BYTES);
}
/* Store register REGNO, or all registers if REGNO == -1, from the contents
buf[1] = 0;
buf[2] = (int) (memaddr >> 24) & 0xff;
buf[3] = (int) (memaddr >> 16) & 0xff;
- buf[4] = (int) (memaddr >> 8) & 0xff;
- buf[5] = (int) (memaddr ) & 0xff;
+ buf[4] = (int) (memaddr >> 8) & 0xff;
+ buf[5] = (int) (memaddr) & 0xff;
buf[6] = 1;
buf[7] = 0;
buf[1] = 0;
buf[2] = (int) (memaddr >> 24) & 0xff;
buf[3] = (int) (memaddr >> 16) & 0xff;
- buf[4] = (int) (memaddr >> 8) & 0xff;
- buf[5] = (int) (memaddr ) & 0xff;
+ buf[4] = (int) (memaddr >> 8) & 0xff;
+ buf[5] = (int) (memaddr) & 0xff;
buf[6] = (int) (todo >> 8) & 0xff;
- buf[7] = (int) (todo ) & 0xff;
+ buf[7] = (int) (todo) & 0xff;
buf[8] = 1;
retlen = sds_send (buf, 9);
/* ARGSUSED */
static int
-sds_xfer_memory(memaddr, myaddr, len, should_write, target)
+sds_xfer_memory (memaddr, myaddr, len, should_write, target)
CORE_ADDR memaddr;
char *myaddr;
int len;
int should_write;
- struct target_ops *target; /* ignored */
+ struct target_ops *target; /* ignored */
{
return dcache_xfer_memory (sds_dcache, memaddr, myaddr, len, should_write);
}
-
\f
+
static void
sds_files_info (ignore)
struct target_ops *ignore;
ch = SERIAL_READCHAR (sds_desc, timeout);
if (remote_debug > 1 && ch >= 0)
- printf_unfiltered("%c(%x)", ch, ch);
+ fprintf_unfiltered (gdb_stdlog, "%c(%x)", ch, ch);
switch (ch)
{
unsigned char csum = 0;
char buf2[PBUFSIZ], buf3[PBUFSIZ];
unsigned char header[3];
- int ch;
- int tcount = 0;
char *p;
/* Copy the packet into buffer BUF2, encapsulating it
and giving it a checksum. */
if (len > 170) /* Prosanity check */
- abort();
+ abort ();
if (remote_debug)
{
- fprintf_unfiltered (gdb_stderr, "Message to send: \"");
+ fprintf_unfiltered (gdb_stdlog, "Message to send: \"");
for (i = 0; i < len; ++i)
- fprintf_unfiltered (gdb_stderr, "%02x", buf[i]);
- fprintf_unfiltered (gdb_stderr, "\"\n");
+ fprintf_unfiltered (gdb_stdlog, "%02x", buf[i]);
+ fprintf_unfiltered (gdb_stdlog, "\"\n");
}
p = buf2;
if (len % 3 != 0)
{
buf[len] = '\0';
- buf[len+1] = '\0';
+ buf[len + 1] = '\0';
}
header[1] = next_msg_id;
while (1)
{
- int started_error_output = 0;
-
if (remote_debug)
{
*p = '\0';
- printf_unfiltered ("Sending encoded: \"%s\"", buf2);
- printf_unfiltered (" (Checksum %d, id %d, length %d)\n",
- header[0], header[1], header[2]);
- gdb_flush (gdb_stdout);
+ fprintf_unfiltered (gdb_stdlog, "Sending encoded: \"%s\"", buf2);
+ fprintf_unfiltered (gdb_stdlog,
+ " (Checksum %d, id %d, length %d)\n",
+ header[0], header[1], header[2]);
+ gdb_flush (gdb_stdlog);
}
if (SERIAL_WRITE (sds_desc, buf2, p - buf2))
perror_with_name ("putmessage: write failed");
return 1;
-
}
-
}
/* Come here after finding the start of the frame. Collect the rest
{
case SERIAL_TIMEOUT:
if (remote_debug)
- puts_filtered ("Timeout in mid-message, retrying\n");
+ fputs_filtered ("Timeout in mid-message, retrying\n", gdb_stdlog);
return 0;
case '$':
if (remote_debug)
- puts_filtered ("Saw new packet start in middle of old one\n");
+ fputs_filtered ("Saw new packet start in middle of old one\n",
+ gdb_stdlog);
return 0; /* Start a new packet, count retries */
case '\r':
break;
{
*bp = '\000';
if (remote_debug)
- fprintf_unfiltered (gdb_stderr, "Received encoded: \"%s\"\n",
+ fprintf_unfiltered (gdb_stdlog, "Received encoded: \"%s\"\n",
buf);
return 1;
}
if (forever)
{
-#ifdef MAINTENANCE_CMDS
timeout = watchdog > 0 ? watchdog : -1;
-#else
- timeout = -1;
-#endif
}
else
for (tries = 1; tries <= MAX_TRIES; tries++)
{
/* This can loop forever if the remote side sends us characters
- continuously, but if it pauses, we'll get a zero from readchar
- because of timeout. Then we'll count that as a retry. */
+ continuously, but if it pauses, we'll get a zero from readchar
+ because of timeout. Then we'll count that as a retry. */
/* Note that we will only wait forever prior to the start of a packet.
- After that, we expect characters to arrive at a brisk pace. They
- should show up within sds_timeout intervals. */
+ After that, we expect characters to arrive at a brisk pace. They
+ should show up within sds_timeout intervals. */
do
{
if (c == SERIAL_TIMEOUT)
{
-#ifdef MAINTENANCE_CMDS
if (forever) /* Watchdog went off. Kill the target. */
{
target_mourn_inferior ();
error ("Watchdog has expired. Target detached.\n");
}
-#endif
if (remote_debug)
- puts_filtered ("Timed out.\n");
+ fputs_filtered ("Timed out.\n", gdb_stdlog);
goto retry;
}
}
while (c != '$' && c != '{');
/* We might have seen a "trigraph", a sequence of three characters
- that indicate various sorts of communication state. */
+ that indicate various sorts of communication state. */
if (c == '{')
{
c2 = readchar (timeout);
c3 = readchar (timeout);
if (remote_debug)
- fprintf_unfiltered (gdb_stderr, "Trigraph %c%c%c received\n",
+ fprintf_unfiltered (gdb_stdlog, "Trigraph %c%c%c received\n",
c, c2, c3);
if (c3 == '+')
{
message_pending = 1;
- return 0; /*????*/
+ return 0; /*???? */
}
continue;
}
if (csum != header[0])
fprintf_unfiltered (gdb_stderr,
- "Checksum mismatch: computed %d, received %d\n",
+ "Checksum mismatch: computed %d, received %d\n",
csum, header[0]);
if (header[2] == 0xff)
if (remote_debug)
{
- fprintf_unfiltered (gdb_stderr,
- "... (Got checksum %d, id %d, length %d)\n",
+ fprintf_unfiltered (gdb_stdlog,
+ "... (Got checksum %d, id %d, length %d)\n",
header[0], header[1], header[2]);
- fprintf_unfiltered (gdb_stderr, "Message received: \"");
+ fprintf_unfiltered (gdb_stdlog, "Message received: \"");
for (i = 0; i < len; ++i)
{
- fprintf_unfiltered (gdb_stderr, "%02x", (unsigned char) buf[i]);
+ fprintf_unfiltered (gdb_stdlog, "%02x", (unsigned char) buf[i]);
}
- fprintf_unfiltered (gdb_stderr, "\"\n");
+ fprintf_unfiltered (gdb_stdlog, "\"\n");
}
/* no ack required? */
static void
sds_load (filename, from_tty)
- char *filename;
- int from_tty;
+ char *filename;
+ int from_tty;
{
generic_load (filename, from_tty);
*p++ = 0;
*p++ = (int) (addr >> 24) & 0xff;
*p++ = (int) (addr >> 16) & 0xff;
- *p++ = (int) (addr >> 8) & 0xff;
- *p++ = (int) (addr ) & 0xff;
-
+ *p++ = (int) (addr >> 8) & 0xff;
+ *p++ = (int) (addr) & 0xff;
+
retlen = sds_send (buf, p - buf);
for (i = 0; i < 4; ++i)
*p++ = 0;
*p++ = (int) (addr >> 24) & 0xff;
*p++ = (int) (addr >> 16) & 0xff;
- *p++ = (int) (addr >> 8) & 0xff;
- *p++ = (int) (addr ) & 0xff;
+ *p++ = (int) (addr >> 8) & 0xff;
+ *p++ = (int) (addr) & 0xff;
for (i = 0; i < 4; ++i)
*p++ = contents_cache[i];
return 0;
}
\f
-/* Define the target operations vector. */
-
-static struct target_ops sds_ops ;
-
-static void init_sds_ops(void)
+static void
+init_sds_ops ()
{
- sds_ops.to_shortname = "sds";
- sds_ops.to_longname = "Remote serial target with SDS protocol";
- sds_ops.to_doc = "Use a remote computer via a serial line; using the SDS protocol.\n\
-Specify the serial device it is connected to (e.g. /dev/ttya).",
- sds_ops.to_open = sds_open;
- sds_ops.to_close = sds_close;
- sds_ops.to_attach = NULL;
- sds_ops.to_detach = sds_detach;
- sds_ops.to_resume = sds_resume;
- sds_ops.to_wait = sds_wait;
- sds_ops.to_fetch_registers = sds_fetch_registers;
- sds_ops.to_store_registers = sds_store_registers;
- sds_ops.to_prepare_to_store = sds_prepare_to_store;
- sds_ops.to_xfer_memory = sds_xfer_memory;
- sds_ops.to_files_info = sds_files_info;
- sds_ops.to_insert_breakpoint = sds_insert_breakpoint;
- sds_ops.to_remove_breakpoint = sds_remove_breakpoint;
- sds_ops.to_terminal_init = NULL;
- sds_ops.to_terminal_inferior = NULL;
- sds_ops.to_terminal_ours_for_output = NULL;
- sds_ops.to_terminal_ours = NULL;
- sds_ops.to_terminal_info = NULL;
- sds_ops.to_kill = sds_kill;
- sds_ops.to_load = sds_load;
- sds_ops.to_lookup_symbol = NULL;
- sds_ops.to_create_inferior = sds_create_inferior;
- sds_ops.to_mourn_inferior = sds_mourn;
- sds_ops.to_can_run = 0;
- sds_ops.to_notice_signals = 0;
- sds_ops.to_thread_alive = 0;
- sds_ops.to_stop = 0;
- sds_ops.to_stratum = process_stratum;
- sds_ops.DONT_USE = NULL;
- sds_ops.to_has_all_memory = 1;
- sds_ops.to_has_memory = 1;
- sds_ops.to_has_stack = 1; /* to_has_stack */
- sds_ops.to_has_registers = 1; sds_ops.to_has_execution = 1;
- sds_ops.to_sections = NULL;
- sds_ops.to_sections_end = NULL;
- sds_ops.to_magic = OPS_MAGIC ;
+ sds_ops.to_shortname = "sds";
+ sds_ops.to_longname = "Remote serial target with SDS protocol";
+ sds_ops.to_doc = "Use a remote computer via a serial line; using the SDS protocol.\n\
+Specify the serial device it is connected to (e.g. /dev/ttya).";
+ sds_ops.to_open = sds_open;
+ sds_ops.to_close = sds_close;
+ sds_ops.to_detach = sds_detach;
+ sds_ops.to_resume = sds_resume;
+ sds_ops.to_wait = sds_wait;
+ sds_ops.to_fetch_registers = sds_fetch_registers;
+ sds_ops.to_store_registers = sds_store_registers;
+ sds_ops.to_prepare_to_store = sds_prepare_to_store;
+ sds_ops.to_xfer_memory = sds_xfer_memory;
+ sds_ops.to_files_info = sds_files_info;
+ sds_ops.to_insert_breakpoint = sds_insert_breakpoint;
+ sds_ops.to_remove_breakpoint = sds_remove_breakpoint;
+ sds_ops.to_kill = sds_kill;
+ sds_ops.to_load = sds_load;
+ sds_ops.to_create_inferior = sds_create_inferior;
+ sds_ops.to_mourn_inferior = sds_mourn;
+ sds_ops.to_stratum = process_stratum;
+ sds_ops.to_has_all_memory = 1;
+ sds_ops.to_has_memory = 1;
+ sds_ops.to_has_stack = 1;
+ sds_ops.to_has_registers = 1;
+ sds_ops.to_has_execution = 1;
+ sds_ops.to_magic = OPS_MAGIC;
}
/* Put a command string, in args, out to the monitor and display the
for (i = 0; i < retlen; ++i)
{
printf_filtered ("%02x", buf[i]);
- }
+ }
printf_filtered ("\n");
}
void
_initialize_remote_sds ()
{
- init_sds_ops() ;
+ init_sds_ops ();
add_target (&sds_ops);
add_show_from_set (add_set_cmd ("sdstimeout", no_class,
- var_integer, (char *)&sds_timeout,
- "Set timeout value for sds read.\n", &setlist),
+ var_integer, (char *) &sds_timeout,
+ "Set timeout value for sds read.\n", &setlist),
&showlist);
add_com ("sds", class_obscure, sds_command,
- "Send a command to the SDS monitor.");
+ "Send a command to the SDS monitor.");
}
projects / deliverable / binutils-gdb.git / blobdiff