/* Remote debugging interface for boot monitors, for GDB.
Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2006, 2007, 2008, 2009, 2010
+ 2000, 2001, 2002, 2006, 2007, 2008, 2009, 2010, 2011
Free Software Foundation, Inc.
Contributed by Cygnus Support. Written by Rob Savoye for Cygnus.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
-/* This file was derived from various remote-* modules. It is a collection
+/* This file was derived from various remote-* modules. It is a collection
of generic support functions so GDB can talk directly to a ROM based
- monitor. This saves use from having to hack an exception based handler
+ monitor. This saves use from having to hack an exception based handler
into existence, and makes for quick porting.
This module talks to a debug monitor called 'MONITOR', which
static struct monitor_ops *current_monitor;
-static int hashmark; /* flag set by "set hash" */
+static int hashmark; /* flag set by "set hash". */
static int timeout = 30;
-static int in_monitor_wait = 0; /* Non-zero means we are in monitor_wait() */
+static int in_monitor_wait = 0; /* Non-zero means we are in monitor_wait(). */
-static void (*ofunc) (); /* Old SIGINT signal handler */
+static void (*ofunc) (); /* Old SIGINT signal handler. */
static CORE_ADDR *breakaddr;
static struct serial *monitor_desc = NULL;
-/* Pointer to regexp pattern matching data */
+/* Pointer to regexp pattern matching data. */
static struct re_pattern_buffer register_pattern;
static char register_fastmap[256];
static int dump_reg_flag; /* Non-zero means do a dump_registers cmd when
monitor_wait wakes up. */
-static int first_time = 0; /* is this the first time we're executing after
- gaving created the child proccess? */
+static int first_time = 0; /* Is this the first time we're
+ executing after gaving created the
+ child proccess? */
/* This is the ptid we use while we're connected to a monitor. Its
#define TARGET_BUF_SIZE 2048
/* Monitor specific debugging information. Typically only useful to
- the developer of a new monitor interface. */
+ the developer of a new monitor interface. */
-static void monitor_debug (const char *fmt, ...) ATTR_FORMAT(printf, 1, 2);
+static void monitor_debug (const char *fmt, ...) ATTRIBUTE_PRINTF (1, 2);
static int monitor_debug_p = 0;
/* NOTE: This file alternates between monitor_debug_p and remote_debug
when determining if debug information is printed. Perhaps this
- could be simplified. */
+ could be simplified. */
static void
monitor_debug (const char *fmt, ...)
if (monitor_debug_p)
{
va_list args;
+
va_start (args, fmt);
vfprintf_filtered (gdb_stdlog, fmt, args);
va_end (args);
/* Convert a string into a printable representation, Return # byte in
the new string. When LEN is >0 it specifies the size of the
- string. Otherwize strlen(oldstr) is used. */
+ string. Otherwize strlen(oldstr) is used. */
static void
monitor_printable_string (char *newstr, char *oldstr, int len)
{
int real_len = (len == 0 && string != (char *) 0) ? strlen (string) : len;
char *safe_string = alloca ((real_len * 4) + 1);
+
monitor_printable_string (safe_string, string, real_len);
if (final_char)
If it is a '%s' format, the argument is a string; otherwise the
argument is assumed to be a long integer.
- %% is also turned into a single %.
- */
+ %% is also turned into a single %. */
static void
monitor_vsprintf (char *sndbuf, char *pattern, va_list args)
len = strlen (sndbuf);
if (len + 1 > sizeof sndbuf)
- internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
+ internal_error (__FILE__, __LINE__,
+ _("failed internal consistency check"));
if (monitor_debug_p)
{
char *safe_string = (char *) alloca ((strlen (sndbuf) * 4) + 1);
+
monitor_printable_string (safe_string, sndbuf, 0);
fprintf_unfiltered (gdb_stdlog, "sent[%s]\n", safe_string);
}
len = strlen (sndbuf);
if (len + 1 > sizeof sndbuf)
- internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
+ internal_error (__FILE__, __LINE__,
+ _("failed internal consistency check"));
if (monitor_debug_p)
{
char *safe_string = (char *) alloca ((len * 4) + 1);
+
monitor_printable_string (safe_string, sndbuf, 0);
fprintf_unfiltered (gdb_stdlog, "sent[%s]\n", safe_string);
}
monitor_write (sndbuf, len);
- /* We used to expect that the next immediate output was the characters we
- just output, but sometimes some extra junk appeared before the characters
- we expected, like an extra prompt, or a portmaster sending telnet negotiations.
- So, just start searching for what we sent, and skip anything unknown. */
+ /* We used to expect that the next immediate output was the
+ characters we just output, but sometimes some extra junk appeared
+ before the characters we expected, like an extra prompt, or a
+ portmaster sending telnet negotiations. So, just start searching
+ for what we sent, and skip anything unknown. */
monitor_debug ("ExpectEcho\n");
monitor_expect (sndbuf, (char *) 0, 0);
}
{
c &= 0x7f;
/* This seems to interfere with proper function of the
- input stream */
+ input stream. */
if (monitor_debug_p || remote_debug)
{
char buf[2];
+
buf[0] = c;
buf[1] = '\0';
puts_debug ("read -->", buf, "<--");
}
- /* Canonicialize \n\r combinations into one \r */
+ /* Canonicialize \n\r combinations into one \r. */
if ((current_monitor->flags & MO_HANDLE_NL) != 0)
{
if ((c == '\r' && state == last_nl)
if (c == SERIAL_TIMEOUT)
#if 0
- /* I fail to see how detaching here can be useful */
- if (in_monitor_wait) /* Watchdog went off */
+ /* I fail to see how detaching here can be useful. */
+ if (in_monitor_wait) /* Watchdog went off. */
{
target_mourn_inferior ();
error (_("GDB serial timeout has expired. Target detached."));
else
c = readchar (timeout);
- /* Don't expect any ^C sent to be echoed */
+ /* Don't expect any ^C sent to be echoed. */
if (*p == '\003' || c == *p)
{
p, since we know no prefix can be longer than that.
Note that we can use STRING itself, along with C, as a record
- of what we've received so far. :) */
+ of what we've received so far. :) */
int i;
for (i = (p - string) - 1; i >= 0; i--)
{
/* Is this prefix a suffix of what we've read so far?
In other words, does
- string[0 .. i-1] == string[p - i, p - 1]? */
+ string[0 .. i-1] == string[p - i, p - 1]? */
if (! memcmp (string, p - i, i))
{
p = string + i + 1;
{
char *mybuf;
char *p;
+
monitor_debug ("MON Expecting regexp\n");
if (buf)
mybuf = buf;
int retval;
if (p - mybuf >= buflen)
- { /* Buffer about to overflow */
+ { /* Buffer about to overflow. */
/* On overflow, we copy the upper half of the buffer to the lower half. Not
- great, but it usually works... */
+ great, but it usually works... */
memcpy (mybuf, mybuf + buflen / 2, buflen / 2);
p = mybuf + buflen / 2;
re_set_syntax (tmp);
if (val)
- error (_("compile_pattern: Can't compile pattern string `%s': %s!"), pattern, val);
+ error (_("compile_pattern: Can't compile pattern string `%s': %s!"),
+ pattern, val);
if (fastmap)
re_compile_fastmap (compiled_pattern);
}
-/* Open a connection to a remote debugger. NAME is the filename used
+/* Open a connection to a remote debugger. NAME is the filename used
for communication. */
void
name = targ_ops->to_shortname;
if (!args)
- error (_("Use `target %s DEVICE-NAME' to use a serial port, or \n\
+ error (_("Use `target %s DEVICE-NAME' to use a serial port, or\n\
`target %s HOST-NAME:PORT-NUMBER' to use a network connection."), name, name);
target_preopen (from_tty);
- /* Setup pattern for register dump */
+ /* Setup pattern for register dump. */
if (mon_ops->register_pattern)
compile_pattern (mon_ops->register_pattern, ®ister_pattern,
serial_flush_input (monitor_desc);
- /* some systems only work with 2 stop bits */
+ /* some systems only work with 2 stop bits. */
serial_setstopbits (monitor_desc, mon_ops->stopbits);
}
}
- /* wake up the monitor and see if it's alive */
+ /* wake up the monitor and see if it's alive. */
for (p = mon_ops->init; *p != NULL; p++)
{
/* Some of the characters we send may not be echoed,
- but we hope to get a prompt at the end of it all. */
+ but we hope to get a prompt at the end of it all. */
if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0)
monitor_printf (*p);
if (mon_ops->num_breakpoints == 0)
mon_ops->num_breakpoints = 8;
- breakaddr = (CORE_ADDR *) xmalloc (mon_ops->num_breakpoints * sizeof (CORE_ADDR));
+ breakaddr = (CORE_ADDR *)
+ xmalloc (mon_ops->num_breakpoints * sizeof (CORE_ADDR));
memset (breakaddr, 0, mon_ops->num_breakpoints * sizeof (CORE_ADDR));
}
- /* Remove all breakpoints */
+ /* Remove all breakpoints. */
if (mon_ops->clr_all_break)
{
}
if (from_tty)
- printf_unfiltered (_("Remote target %s connected to %s\n"), name, dev_name);
+ printf_unfiltered (_("Remote target %s connected to %s\n"),
+ name, dev_name);
push_target (targ_ops);
inferior_appeared (inf, ptid_get_pid (inferior_ptid));
add_thread_silent (inferior_ptid);
- /* Give monitor_wait something to read */
+ /* Give monitor_wait something to read. */
monitor_printf (current_monitor->line_term);
+ init_wait_for_inferior ();
+
start_remote (from_tty);
}
if (monitor_desc)
serial_close (monitor_desc);
- /* Free breakpoint memory */
+ /* Free breakpoint memory. */
if (breakaddr != NULL)
{
xfree (breakaddr);
static void
monitor_detach (struct target_ops *ops, char *args, int from_tty)
{
- pop_target (); /* calls monitor_close to do the real work */
+ pop_target (); /* calls monitor_close to do the real work. */
if (from_tty)
printf_unfiltered (_("Ending remote %s debugging\n"), target_shortname);
}
error (_("monitor_supply_register (%d): bad value from monitor: %s."),
regno, valstr);
- /* supply register stores in target byte order, so swap here */
+ /* supply register stores in target byte order, so swap here. */
store_unsigned_integer (regbuf, register_size (gdbarch, regno), byte_order,
val);
monitor_resume (struct target_ops *ops,
ptid_t ptid, int step, enum target_signal sig)
{
- /* Some monitors require a different command when starting a program */
+ /* Some monitors require a different command when starting a program. */
monitor_debug ("MON resume\n");
if (current_monitor->flags & MO_RUN_FIRST_TIME && first_time == 1)
{
{
int regnamelen, vallen;
char *regname, *val;
+
/* Element 0 points to start of register name, and element 1
points to the start of the register value. */
struct re_registers register_strings;
struct target_waitstatus *status)
{
int resp_len;
+
do
{
resp_len = monitor_expect_prompt (buf, bufmax);
*ext_resp_len = resp_len;
if (resp_len <= 0)
- fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf);
+ fprintf_unfiltered (gdb_stderr,
+ "monitor_wait: excessive "
+ "response from monitor: %s.", buf);
}
while (resp_len < 0);
/* Print any output characters that were preceded by ^O. */
- /* FIXME - This would be great as a user settabgle flag */
+ /* FIXME - This would be great as a user settabgle flag. */
if (monitor_debug_p || remote_debug
|| current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT)
{
monitor_debug ("MON wait\n");
#if 0
- /* This is somthing other than a maintenance command */
+ /* This is somthing other than a maintenance command. */
in_monitor_wait = 1;
timeout = watchdog > 0 ? watchdog : -1;
#else
- timeout = -1; /* Don't time out -- user program is running. */
+ timeout = -1; /* Don't time out -- user program is running. */
#endif
ofunc = (void (*)()) signal (SIGINT, monitor_interrupt);
else
monitor_wait_filter (buf, sizeof (buf), &resp_len, status);
-#if 0 /* Transferred to monitor wait filter */
+#if 0 /* Transferred to monitor wait filter. */
do
{
resp_len = monitor_expect_prompt (buf, sizeof (buf));
if (resp_len <= 0)
- fprintf_unfiltered (gdb_stderr, "monitor_wait: excessive response from monitor: %s.", buf);
+ fprintf_unfiltered (gdb_stderr,
+ "monitor_wait: excessive "
+ "response from monitor: %s.", buf);
}
while (resp_len < 0);
/* Print any output characters that were preceded by ^O. */
- /* FIXME - This would be great as a user settabgle flag */
+ /* FIXME - This would be great as a user settabgle flag. */
if (monitor_debug_p || remote_debug
|| current_monitor->flags & MO_PRINT_PROGRAM_OUTPUT)
{
return inferior_ptid;
}
-/* Fetch register REGNO, or all registers if REGNO is -1. Returns
+/* Fetch register REGNO, or all registers if REGNO is -1. Returns
errno value. */
static void
return;
}
- /* send the register examine command */
+ /* Send the register examine command. */
monitor_printf (current_monitor->getreg.cmd, name);
}
}
- /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set */
+ /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set. */
if (current_monitor->flags & MO_HEX_PREFIX)
{
int c;
+
c = readchar (timeout);
while (c == ' ')
c = readchar (timeout);
if ((c == '0') && ((c = readchar (timeout)) == 'x'))
;
else
- error (_("Bad value returned from monitor while fetching register %x."),
+ error (_("Bad value returned from monitor "
+ "while fetching register %x."),
regno);
}
for (i = 0; i < register_size (get_regcache_arch (regcache), regno) * 2; i++)
{
int c;
+
c = readchar (timeout);
while (c == ' ')
c = readchar (timeout);
regbuf[i] = c;
}
- regbuf[i] = '\000'; /* terminate the number */
+ regbuf[i] = '\000'; /* Terminate the number. */
monitor_debug ("REGVAL '%s'\n", regbuf);
/* If TERM is present, we wait for that to show up. Also, (if TERM
if (current_monitor->getreg.term)
{
monitor_debug ("EXP getreg.term\n");
- monitor_expect (current_monitor->getreg.term, NULL, 0); /* get response */
+ monitor_expect (current_monitor->getreg.term, NULL, 0); /* Get
+ response. */
}
if (current_monitor->getreg.term_cmd)
monitor_printf (current_monitor->getreg.term_cmd);
}
if (!current_monitor->getreg.term || /* Already expected or */
- current_monitor->getreg.term_cmd) /* ack expected */
- monitor_expect_prompt (NULL, 0); /* get response */
+ current_monitor->getreg.term_cmd) /* ack expected. */
+ monitor_expect_prompt (NULL, 0); /* Get response. */
monitor_supply_register (regcache, regno, regbuf);
}
-/* Sometimes, it takes several commands to dump the registers */
+/* Sometimes, it takes several commands to dump the registers. */
/* This is a primitive for use by variations of monitor interfaces in
- case they need to compose the operation.
- */
+ case they need to compose the operation. */
+
int
monitor_dump_reg_block (struct regcache *regcache, char *block_cmd)
{
char buf[TARGET_BUF_SIZE];
int resp_len;
+
monitor_printf (block_cmd);
resp_len = monitor_expect_prompt (buf, sizeof (buf));
parse_register_dump (regcache, buf, resp_len);
/* Read the remote registers into the block regs. */
-/* Call the specific function if it has been provided */
+/* Call the specific function if it has been provided. */
static void
monitor_dump_regs (struct regcache *regcache)
{
char buf[TARGET_BUF_SIZE];
int resp_len;
+
if (current_monitor->dumpregs)
- (*(current_monitor->dumpregs)) (regcache); /* call supplied function */
- else if (current_monitor->dump_registers) /* default version */
+ (*(current_monitor->dumpregs)) (regcache); /* Call supplied function. */
+ else if (current_monitor->dump_registers) /* Default version. */
{
monitor_printf (current_monitor->dump_registers);
resp_len = monitor_expect_prompt (buf, sizeof (buf));
parse_register_dump (regcache, buf, resp_len);
}
else
- internal_error (__FILE__, __LINE__, _("failed internal consistency check")); /* Need some way to read registers */
+ /* Need some way to read registers. */
+ internal_error (__FILE__, __LINE__,
+ _("failed internal consistency check"));
}
static void
regcache_cooked_read_unsigned (regcache, regno, &val);
monitor_debug ("MON storeg %d %s\n", regno, phex (val, reg_size));
- /* send the register deposit command */
+ /* Send the register deposit command. */
if (current_monitor->flags & MO_REGISTER_VALUE_FIRST)
monitor_printf (current_monitor->setreg.cmd, val, name);
}
else
monitor_expect_prompt (NULL, 0);
- if (current_monitor->setreg.term_cmd) /* Mode exit required */
+ if (current_monitor->setreg.term_cmd) /* Mode exit required. */
{
monitor_debug ("EXP setreg_termcmd\n");
monitor_printf ("%s", current_monitor->setreg.term_cmd);
static void
monitor_prepare_to_store (struct regcache *regcache)
{
- /* Do nothing, since we can store individual regs */
+ /* Do nothing, since we can store individual regs. */
}
static void
if (myaddr[i] != 0)
break;
- if (i > 4) /* More than 4 zeros is worth doing */
+ if (i > 4) /* More than 4 zeros is worth doing. */
{
monitor_debug ("MON FILL %d\n", i);
if (current_monitor->flags & MO_FILL_USES_ADDR)
- monitor_printf (current_monitor->fill, memaddr, (memaddr + i) - 1, 0);
+ monitor_printf (current_monitor->fill, memaddr,
+ (memaddr + i) - 1, 0);
else
monitor_printf (current_monitor->fill, memaddr, i, 0);
monitor_printf_noecho (cmd, memaddr, val);
else if (current_monitor->flags & MO_SETMEM_INTERACTIVE)
{
-
monitor_printf_noecho (cmd, memaddr);
if (current_monitor->setmem.resp_delim)
monitor_printf ("%x\r", val);
}
if (current_monitor->setmem.term_cmd)
- { /* Emit this to get out of the memory editing state */
+ { /* Emit this to get out of the memory editing state. */
monitor_printf ("%s", current_monitor->setmem.term_cmd);
- /* Drop through to expecting a prompt */
+ /* Drop through to expecting a prompt. */
}
}
else
{
unsigned char val;
int written = 0;
+
if (len == 0)
return 0;
- /* Enter the sub mode */
+ /* Enter the sub mode. */
monitor_printf (current_monitor->setmem.cmdb, memaddr);
monitor_expect_prompt (NULL, 0);
while (len)
myaddr++;
memaddr++;
written++;
- /* If we wanted to, here we could validate the address */
+ /* If we wanted to, here we could validate the address. */
monitor_expect_prompt (NULL, 0);
len--;
}
- /* Now exit the sub mode */
+ /* Now exit the sub mode. */
monitor_printf (current_monitor->getreg.term_cmd);
monitor_expect_prompt (NULL, 0);
return written;
{
int i, j;
unsigned char x;
+
i = 0;
j = 7;
while (i < 4)
i++, j--;
}
}
-/* Format 32 chars of long long value, advance the pointer */
+/* Format 32 chars of long long value, advance the pointer. */
static char *hexlate = "0123456789abcdef";
static char *
longlong_hexchars (unsigned long long value,
unsigned char *scan, *limit; /* loop controls */
unsigned char c, nib;
int leadzero = 1;
+
scan = disbuf;
limit = scan + 8;
{
unsigned long long *dp;
+
dp = (unsigned long long *) scan;
*dp = value;
}
- longlongendswap (disbuf); /* FIXME: ONly on big endian hosts */
+ longlongendswap (disbuf); /* FIXME: ONly on big endian hosts. */
while (scan < limit)
{
- c = *scan++; /* a byte of our long long value */
+ c = *scan++; /* A byte of our long long value. */
if (leadzero)
{
if (c == 0)
continue;
else
- leadzero = 0; /* henceforth we print even zeroes */
+ leadzero = 0; /* Henceforth we print even zeroes. */
}
nib = c >> 4; /* high nibble bits */
*outbuff++ = hexlate[nib];
/* I am only going to call this when writing virtual byte streams.
- Which possably entails endian conversions
- */
+ Which possably entails endian conversions. */
+
static int
monitor_write_memory_longlongs (CORE_ADDR memaddr, char *myaddr, int len)
{
- static char hexstage[20]; /* At least 16 digits required, plus null */
+ static char hexstage[20]; /* At least 16 digits required, plus null. */
char *endstring;
long long *llptr;
long long value;
int written = 0;
+
llptr = (unsigned long long *) myaddr;
if (len == 0)
return 0;
{
value = *llptr;
endstring = longlong_hexchars (*llptr, hexstage);
- *endstring = '\0'; /* NUll terminate for printf */
+ *endstring = '\0'; /* NUll terminate for printf. */
monitor_printf ("%s\r", hexstage);
llptr++;
memaddr += 8;
written += 8;
- /* If we wanted to, here we could validate the address */
+ /* If we wanted to, here we could validate the address. */
monitor_expect_prompt (NULL, 0);
len -= 8;
}
- /* Now exit the sub mode */
+ /* Now exit the sub mode. */
monitor_printf (current_monitor->getreg.term_cmd);
monitor_expect_prompt (NULL, 0);
return written;
MO_SETMEM_INTERACTIVE
! MO_NO_ECHO_ON_SETMEM
To use this, the you have to patch the monitor_cmds block with
- this function. Otherwise, its not tuned up for use by all
- monitor variations.
- */
+ this function. Otherwise, its not tuned up for use by all
+ monitor variations. */
static int
monitor_write_memory_block (CORE_ADDR memaddr, char *myaddr, int len)
{
int written;
+
written = 0;
- /* FIXME: This would be a good place to put the zero test */
+ /* FIXME: This would be a good place to put the zero test. */
#if 1
if ((len > 8) && (((len & 0x07)) == 0) && current_monitor->setmem.cmdll)
{
/* Now, read the appropriate number of hex digits for this loc,
skipping spaces. */
- /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set. */
+ /* Skip leading spaces and "0x" if MO_HEX_PREFIX flag is set. */
if (current_monitor->flags & MO_HEX_PREFIX)
{
int c;
{
int i;
+
for (i = 0; i < len * 2; i++)
{
int c;
}
membuf[i] = c;
}
- membuf[i] = '\000'; /* terminate the number */
+ membuf[i] = '\000'; /* Terminate the number. */
}
/* If TERM is present, we wait for that to show up. Also, (if TERM is
if (current_monitor->getmem.term)
{
- monitor_expect (current_monitor->getmem.term, NULL, 0); /* get response */
+ monitor_expect (current_monitor->getmem.term, NULL, 0); /* Get
+ response. */
if (current_monitor->getmem.term_cmd)
{
}
}
else
- monitor_expect_prompt (NULL, 0); /* get response */
+ monitor_expect_prompt (NULL, 0); /* Get response. */
p = membuf;
val = strtoul (membuf, &p, 16);
"bad value from monitor",
memaddr, 0, membuf, 0);
- /* supply register stores in target byte order, so swap here */
+ /* supply register stores in target byte order, so swap here. */
store_unsigned_integer (myaddr, len, byte_order, val);
return 0;
}
- monitor_debug ("MON read block ta(%s) ha(%lx) %d\n",
- paddress (target_gdbarch, memaddr), (long) myaddr, len);
+ monitor_debug ("MON read block ta(%s) ha(%s) %d\n",
+ paddress (target_gdbarch, memaddr),
+ host_address_to_string (myaddr), len);
if (current_monitor->flags & MO_ADDR_BITS_REMOVE)
memaddr = gdbarch_addr_bits_remove (target_gdbarch, memaddr);
len = min (len, 16);
- /* Some dumpers align the first data with the preceeding 16
- byte boundary. Some print blanks and start at the
- requested boundary. EXACT_DUMPADDR
- */
+ /* Some dumpers align the first data with the preceding 16
+ byte boundary. Some print blanks and start at the
+ requested boundary. EXACT_DUMPADDR */
dumpaddr = (current_monitor->flags & MO_EXACT_DUMPADDR)
? memaddr : memaddr & ~0x0f;
if (((memaddr ^ (memaddr + len - 1)) & ~0xf) != 0)
len = ((memaddr + len) & ~0xf) - memaddr;
- /* send the memory examine command */
+ /* Send the memory examine command. */
if (current_monitor->flags & MO_GETMEM_NEEDS_RANGE)
monitor_printf (current_monitor->getmem.cmdb, memaddr, memaddr + len);
if (current_monitor->getmem.term)
{
- resp_len = monitor_expect (current_monitor->getmem.term, buf, sizeof buf); /* get response */
+ resp_len = monitor_expect (current_monitor->getmem.term,
+ buf, sizeof buf); /* Get response. */
if (resp_len <= 0)
monitor_error ("monitor_read_memory",
}
}
else
- resp_len = monitor_expect_prompt (buf, sizeof buf); /* get response */
+ resp_len = monitor_expect_prompt (buf, sizeof buf); /* Get response. */
p = buf;
{
int retval, tmp;
struct re_registers resp_strings;
- monitor_debug ("MON getmem.resp_delim %s\n", current_monitor->getmem.resp_delim);
+
+ monitor_debug ("MON getmem.resp_delim %s\n",
+ current_monitor->getmem.resp_delim);
memset (&resp_strings, 0, sizeof (struct re_registers));
tmp = strlen (p);
p += strlen (current_monitor->getmem.resp_delim);
#endif
}
- monitor_debug ("MON scanning %d ,%lx '%s'\n", len, (long) p, p);
+ monitor_debug ("MON scanning %d ,%s '%s'\n", len,
+ host_address_to_string (p), p);
if (current_monitor->flags & MO_GETMEM_16_BOUNDARY)
{
char c;
++dumpaddr;
++p;
}
- ++p; /* skip a blank or other non hex char */
+ ++p; /* Skip a blank or other non hex char. */
c = *p;
}
if (fetched == 0)
error (_("Failed to read via monitor"));
if (monitor_debug_p || remote_debug)
fprintf_unfiltered (gdb_stdlog, "\n");
- return fetched; /* Return the number of bytes actually read */
+ return fetched; /* Return the number of bytes actually
+ read. */
}
monitor_debug ("MON scanning bytes\n");
for (i = len; i > 0; i--)
{
- /* Skip non-hex chars, but bomb on end of string and newlines */
+ /* Skip non-hex chars, but bomb on end of string and newlines. */
while (1)
{
}
/* Transfer LEN bytes between target address MEMADDR and GDB address
- MYADDR. Returns 0 for success, errno code for failure. TARGET is
- unused. */
+ MYADDR. Returns 0 for success, errno code for failure. TARGET is
+ unused. */
static int
monitor_xfer_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len, int write,
static void
monitor_kill (struct target_ops *ops)
{
- return; /* ignore attempts to kill target system */
+ return; /* Ignore attempts to kill target system. */
}
/* All we actually do is set the PC to the start address of exec_bfd. */
monitor_mourn_inferior (struct target_ops *ops)
{
unpush_target (targ_ops);
- generic_mourn_inferior (); /* Do all the proper things now */
+ generic_mourn_inferior (); /* Do all the proper things now. */
delete_thread_silent (monitor_ptid);
}
}
}
- error (_("Too many breakpoints (> %d) for monitor."), current_monitor->num_breakpoints);
+ error (_("Too many breakpoints (> %d) for monitor."),
+ current_monitor->num_breakpoints);
}
/* Tell the monitor to remove a breakpoint. */
if (breakaddr[i] == addr)
{
breakaddr[i] = 0;
- /* some monitors remove breakpoints based on the address */
+ /* Some monitors remove breakpoints based on the address. */
if (current_monitor->flags & MO_CLR_BREAK_USES_ADDR)
monitor_printf (current_monitor->clr_break, addr);
else if (current_monitor->flags & MO_CLR_BREAK_1_BASED)
return 1;
}
-/* monitor_load -- download a file. */
+/* monitor_load -- download a file. */
static void
monitor_load (char *file, int from_tty)
if (current_monitor->load_routine)
current_monitor->load_routine (monitor_desc, file, hashmark);
else
- { /* The default is ascii S-records */
+ { /* The default is ascii S-records. */
int n;
unsigned long load_offset;
char buf[128];
- /* enable user to specify address for downloading as 2nd arg to load */
+ /* Enable user to specify address for downloading as 2nd arg to load. */
n = sscanf (file, "%s 0x%lx", buf, &load_offset);
if (n > 1)
file = buf;
monitor_expect_prompt (NULL, 0);
}
- /* Finally, make the PC point at the start address */
+ /* Finally, make the PC point at the start address. */
if (exec_bfd)
regcache_write_pc (get_current_regcache (),
bfd_get_start_address (exec_bfd));
}
/* Put a COMMAND string out to MONITOR. Output from MONITOR is placed
- in OUTPUT until the prompt is seen. FIXME: We read the characters
+ in OUTPUT until the prompt is seen. FIXME: We read the characters
ourseleves here cause of a nasty echo. */
static void
resp_len = monitor_expect_prompt (buf, sizeof buf);
- fputs_unfiltered (buf, outbuf); /* Output the response */
+ fputs_unfiltered (buf, outbuf); /* Output the response. */
}
/* Convert hex digit A to a number. */
monitor_ops.to_magic = OPS_MAGIC;
} /* init_base_monitor_ops */
-/* Init the target_ops structure pointed at by OPS */
+/* Init the target_ops structure pointed at by OPS. */
void
init_monitor_ops (struct target_ops *ops)
/* Define additional commands that are usually only used by monitors. */
-extern initialize_file_ftype _initialize_remote_monitors; /* -Wmissing-prototypes */
+/* -Wmissing-prototypes */
+extern initialize_file_ftype _initialize_remote_monitors;
void
_initialize_remote_monitors (void)
projects / external / binutils.git / blobdiff