/* Remote target communications for serial-line targets using SDS' protocol.
- Copyright 1997 Free Software Foundation, Inc.
+
+ Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2004, 2006 Free Software
+ Foundation, Inc.
This file is part of GDB.
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. */
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
/* This interface was written by studying the behavior of the SDS
monitor on an ADS 821/860 board, and by consulting the
#include <fcntl.h>
#include "frame.h"
#include "inferior.h"
+#include "exceptions.h"
#include "bfd.h"
#include "symfile.h"
#include "target.h"
-#include "gdb_wait.h"
#include "gdbcmd.h"
#include "objfiles.h"
#include "gdb-stabs.h"
#include "gdbthread.h"
#include "gdbcore.h"
-#include "dcache.h"
-
-#ifdef USG
-#include <sys/types.h>
-#endif
+#include "regcache.h"
#include <signal.h>
#include "serial.h"
static void sds_files_info (struct target_ops *ignore);
-static int sds_xfer_memory (CORE_ADDR, char *, int, int, struct target_ops *);
+static int sds_xfer_memory (CORE_ADDR, char *, int, int,
+ struct mem_attrib *, struct target_ops *);
static void sds_prepare_to_store (void);
static void sds_fetch_registers (int);
-static void sds_resume (int, int, enum target_signal);
+static void sds_resume (ptid_t, int, enum target_signal);
-static int sds_start_remote (PTR);
+static int sds_start_remote (void *);
static void sds_open (char *, int);
static void sds_mourn (void);
-static void sds_create_inferior (char *, char *, char **);
-
static void sds_load (char *, int);
static int getmessage (unsigned char *, int);
static int readchar (int);
-static int sds_wait (int, struct target_waitstatus *);
+static ptid_t sds_wait (ptid_t, struct target_waitstatus *);
static void sds_kill (void);
-static int tohex (int);
-
static int fromhex (int);
static void sds_detach (char *, int);
that sds_open knows that we don't have a file open when the program
starts. */
-static serial_t sds_desc = NULL;
+static struct serial *sds_desc = NULL;
/* This limit comes from the monitor. */
/* Clean up connection to a remote debugger. */
-/* ARGSUSED */
static void
-sds_close (quitting)
- int quitting;
+sds_close (int quitting)
{
if (sds_desc)
- SERIAL_CLOSE (sds_desc);
+ serial_close (sds_desc);
sds_desc = NULL;
}
/* Stub for catch_errors. */
static int
-sds_start_remote (dummy)
- PTR dummy;
+sds_start_remote (void *dummy)
{
- char c;
+ int c;
unsigned char buf[200];
- immediate_quit = 1; /* Allow user to interrupt it */
+ immediate_quit++; /* Allow user to interrupt it */
/* Ack any packet which the remote side has already sent. */
- SERIAL_WRITE (sds_desc, "{#*\r\n", 5);
- SERIAL_WRITE (sds_desc, "{#}\r\n", 5);
+ serial_write (sds_desc, "{#*\r\n", 5);
+ serial_write (sds_desc, "{#}\r\n", 5);
while ((c = readchar (1)) >= 0)
printf_unfiltered ("%c", c);
buf[0] = 0;
sds_send (buf, 1);
- immediate_quit = 0;
+ immediate_quit--;
start_remote (); /* Initialize gdb process mechanisms */
return 1;
/* Open a connection to a remote debugger.
NAME is the filename used for communication. */
-static DCACHE *sds_dcache;
-
static void
-sds_open (name, from_tty)
- char *name;
- int from_tty;
+sds_open (char *name, int from_tty)
{
if (name == 0)
error ("To open a remote debug connection, you need to specify what serial\n\
unpush_target (&sds_ops);
- sds_dcache = dcache_init (sds_read_bytes, sds_write_bytes);
-
- sds_desc = SERIAL_OPEN (name);
+ sds_desc = serial_open (name);
if (!sds_desc)
perror_with_name (name);
if (baud_rate != -1)
{
- if (SERIAL_SETBAUDRATE (sds_desc, baud_rate))
+ if (serial_setbaudrate (sds_desc, baud_rate))
{
- SERIAL_CLOSE (sds_desc);
+ serial_close (sds_desc);
perror_with_name (name);
}
}
- SERIAL_RAW (sds_desc);
+ serial_raw (sds_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 (sds_desc);
+ serial_flush_input (sds_desc);
if (from_tty)
{
die when it hits one. */
static void
-sds_detach (args, from_tty)
- char *args;
- int from_tty;
+sds_detach (char *args, int from_tty)
{
char buf[PBUFSIZ];
/* Convert hex digit A to a number. */
static int
-fromhex (a)
- int a;
+fromhex (int a)
{
if (a >= '0' && a <= '9')
return a - '0';
error ("Reply contains invalid hex digit %d", a);
}
-/* Convert number NIB to a hex digit. */
-
-static int
-tohex (nib)
- int nib;
-{
- if (nib < 10)
- return '0' + nib;
- else
- return 'a' + nib - 10;
-}
-
static int
-tob64 (inbuf, outbuf, len)
- unsigned char *inbuf;
- char *outbuf;
- int len;
+tob64 (unsigned char *inbuf, char *outbuf, int len)
{
int i, sum;
char *p;
}
static int
-fromb64 (inbuf, outbuf, len)
- char *inbuf, *outbuf;
- int len;
+fromb64 (char *inbuf, char *outbuf, int len)
{
int i, sum;
int last_sent_step;
static void
-sds_resume (pid, step, siggnal)
- int pid, step;
- enum target_signal siggnal;
+sds_resume (ptid_t ptid, int step, enum target_signal siggnal)
{
unsigned char buf[PBUFSIZ];
- dcache_flush (sds_dcache);
-
last_sent_signal = siggnal;
last_sent_step = step;
us a message pending notice. */
static void
-sds_interrupt (signo)
- int signo;
+sds_interrupt (int signo)
{
unsigned char buf[PBUFSIZ];
/* The user typed ^C twice. */
static void
-sds_interrupt_twice (signo)
- int signo;
+sds_interrupt_twice (int signo)
{
signal (signo, ofunc);
/* 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);
+ deprecated_throw_reason (RETURN_QUIT);
}
target_terminal_inferior ();
STATUS just as `wait' would. Returns "pid" (though it's not clear
what, if anything, that means in the case of this target). */
-static int
-sds_wait (pid, status)
- int pid;
- struct target_waitstatus *status;
+static ptid_t
+sds_wait (ptid_t ptid, struct target_waitstatus *status)
{
unsigned char buf[PBUFSIZ];
int retlen;
{
just_started = 0;
status->kind = TARGET_WAITKIND_STOPPED;
- return inferior_pid;
+ return inferior_ptid;
}
while (1)
}
}
got_status:
- return inferior_pid;
+ return inferior_ptid;
}
static unsigned char sprs[16];
/* Read the remote registers into the block REGS. */
/* Currently we just read all the registers, so we don't use regno. */
-/* ARGSUSED */
static void
-sds_fetch_registers (regno)
- int regno;
+sds_fetch_registers (int regno)
{
unsigned char buf[PBUFSIZ];
int i, retlen;
- char regs[REGISTER_BYTES];
+ char *regs = alloca (deprecated_register_bytes ());
/* Unimplemented registers read as all bits zero. */
- memset (regs, 0, REGISTER_BYTES);
+ memset (regs, 0, deprecated_register_bytes ());
buf[0] = 18;
buf[1] = 1;
/* (should warn about reply too short) */
for (i = 0; i < NUM_REGS; i++)
- supply_register (i, ®s[REGISTER_BYTE (i)]);
+ regcache_raw_supply (current_regcache, i,
+ ®s[DEPRECATED_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
-sds_prepare_to_store ()
+sds_prepare_to_store (void)
{
/* Make sure the entire registers array is valid. */
- read_register_bytes (0, (char *) NULL, REGISTER_BYTES);
+ deprecated_read_register_bytes (0, (char *) NULL, deprecated_register_bytes ());
}
/* Store register REGNO, or all registers if REGNO == -1, from the contents
of REGISTERS. FIXME: ignores errors. */
static void
-sds_store_registers (regno)
- int regno;
+sds_store_registers (int regno)
{
unsigned char *p, buf[PBUFSIZ];
int i;
*p++ = 0;
*p++ = 0;
for (i = 0; i < 4 * 6; i++)
- *p++ = registers[i + 4 * 32 + 8 * 32];
+ *p++ = deprecated_registers[i + 4 * 32 + 8 * 32];
for (i = 0; i < 4 * 1; i++)
*p++ = 0;
for (i = 0; i < 4 * 4; i++)
*p++ = 0;
*p++ = 0;
for (i = 0; i < 4 * 32; i++)
- *p++ = registers[i];
+ *p++ = deprecated_registers[i];
sds_send (buf, p - buf);
Returns number of bytes transferred, or 0 for error. */
static int
-sds_write_bytes (memaddr, myaddr, len)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
+sds_write_bytes (CORE_ADDR memaddr, char *myaddr, int len)
{
int max_buf_size; /* Max size of packet output buffer */
int origlen;
Returns number of bytes transferred, or 0 for error. */
static int
-sds_read_bytes (memaddr, myaddr, len)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
+sds_read_bytes (CORE_ADDR memaddr, char *myaddr, int len)
{
int max_buf_size; /* Max size of packet output buffer */
int origlen, retlen;
/* 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. */
+ read; 0 for error. TARGET is unused. */
-/* ARGSUSED */
static int
-sds_xfer_memory (memaddr, myaddr, len, should_write, target)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int should_write;
- struct target_ops *target; /* ignored */
+sds_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int should_write,
+ struct mem_attrib *attrib, struct target_ops *target)
{
- return dcache_xfer_memory (sds_dcache, memaddr, myaddr, len, should_write);
+ int res;
+
+ if (should_write)
+ res = sds_write_bytes (memaddr, myaddr, len);
+ else
+ res = sds_read_bytes (memaddr, myaddr, len);
+
+ return res;
}
\f
static void
-sds_files_info (ignore)
- struct target_ops *ignore;
+sds_files_info (struct target_ops *ignore)
{
puts_filtered ("Debugging over a serial connection, using SDS protocol.\n");
}
/* Read a single character from the remote end, masking it down to 7 bits. */
static int
-readchar (timeout)
- int timeout;
+readchar (int timeout)
{
int ch;
- ch = SERIAL_READCHAR (sds_desc, timeout);
+ ch = serial_readchar (sds_desc, timeout);
if (remote_debug > 1 && ch >= 0)
fprintf_unfiltered (gdb_stdlog, "%c(%x)", ch, ch);
because 253, 254, and 255 are special flags in the protocol.) */
static int
-compute_checksum (csum, buf, len)
- int csum, len;
- char *buf;
+compute_checksum (int csum, char *buf, int len)
{
int i;
into BUF also. */
static int
-sds_send (buf, len)
- unsigned char *buf;
- int len;
+sds_send (unsigned char *buf, int len)
{
putmessage (buf, len);
/* Send a message to the remote machine. */
static int
-putmessage (buf, len)
- unsigned char *buf;
- int len;
+putmessage (unsigned char *buf, int len)
{
int i, enclen;
unsigned char csum = 0;
and giving it a checksum. */
if (len > 170) /* Prosanity check */
- abort ();
+ internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
if (remote_debug)
{
header[0], header[1], header[2]);
gdb_flush (gdb_stdlog);
}
- if (SERIAL_WRITE (sds_desc, buf2, p - buf2))
+ if (serial_write (sds_desc, buf2, p - buf2))
perror_with_name ("putmessage: write failed");
return 1;
into BUF. Returns 0 on any error, 1 on success. */
static int
-read_frame (buf)
- char *buf;
+read_frame (char *buf)
{
char *bp;
int c;
while the target is executing user code. */
static int
-getmessage (buf, forever)
- unsigned char *buf;
- int forever;
+getmessage (unsigned char *buf, int forever)
{
int c, c2, c3;
int tries;
/* Try the whole thing again. */
retry:
/* need to do something here */
+ ;
}
/* We have tried hard enough, and just can't receive the packet. Give up. */
}
\f
static void
-sds_kill ()
+sds_kill (void)
{
/* Don't try to do anything to the target. */
}
static void
-sds_mourn ()
+sds_mourn (void)
{
unpush_target (&sds_ops);
generic_mourn_inferior ();
}
static void
-sds_create_inferior (exec_file, args, env)
- char *exec_file;
- char *args;
- char **env;
+sds_create_inferior (char *exec_file, char *args, char **env, int from_tty)
{
- inferior_pid = 42000;
+ inferior_ptid = pid_to_ptid (42000);
/* Clean up from the last time we were running. */
clear_proceed_status ();
- /* Let the remote process run. */
- proceed (bfd_get_start_address (exec_bfd), TARGET_SIGNAL_0, 0);
+ write_pc (bfd_get_start_address (exec_bfd));
}
static void
-sds_load (filename, from_tty)
- char *filename;
- int from_tty;
+sds_load (char *filename, int from_tty)
{
generic_load (filename, from_tty);
- inferior_pid = 0;
+ inferior_ptid = null_ptid;
}
\f
/* The SDS monitor has commands for breakpoint insertion, although it
replaced instruction back to the debugger. */
static int
-sds_insert_breakpoint (addr, contents_cache)
- CORE_ADDR addr;
- char *contents_cache;
+sds_insert_breakpoint (CORE_ADDR addr, char *contents_cache)
{
int i, retlen;
unsigned char *p, buf[PBUFSIZ];
}
static int
-sds_remove_breakpoint (addr, contents_cache)
- CORE_ADDR addr;
- char *contents_cache;
+sds_remove_breakpoint (CORE_ADDR addr, char *contents_cache)
{
int i, retlen;
unsigned char *p, buf[PBUFSIZ];
}
\f
static void
-init_sds_ops ()
+init_sds_ops (void)
{
sds_ops.to_shortname = "sds";
sds_ops.to_longname = "Remote serial target with SDS protocol";
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.deprecated_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;
reply message. */
static void
-sds_command (args, from_tty)
- char *args;
- int from_tty;
+sds_command (char *args, int from_tty)
{
char *p;
int i, len, retlen;
}
void
-_initialize_remote_sds ()
+_initialize_remote_sds (void)
{
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),
- &showlist);
+ add_setshow_integer_cmd ("sdstimeout", no_class, &sds_timeout, _("\
+Set timeout value for sds read."), _("\
+Show timeout value for sds read."), NULL,
+ NULL,
+ NULL, /* FIXME: i18n: */
+ &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