/* Remote target communications for serial-line targets in custom GDB protocol
Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
- 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+ 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
This file is part of GDB.
static void remote_terminal_ours (void);
+static int remote_read_description_p (struct target_ops *target);
+
/* The non-stop remote protocol provisions for one pending stop reply.
This is where we keep it until it is acknowledged. */
PACKET_qXfer_memory_map,
PACKET_qXfer_spu_read,
PACKET_qXfer_spu_write,
+ PACKET_qXfer_osdata,
PACKET_qGetTLSAddr,
PACKET_qSupported,
PACKET_QPassSignals,
pp = unpack_varlen_hex (p, &tid);
/* Since the stub is not sending a process id, then default to
- what's in inferior_ptid. */
- pid = ptid_get_pid (inferior_ptid);
+ what's in inferior_ptid, unless it's null at this point. If so,
+ then since there's no way to know the pid of the reported
+ threads, use the magic number. */
+ if (ptid_equal (inferior_ptid, null_ptid))
+ pid = ptid_get_pid (magic_null_ptid);
+ else
+ pid = ptid_get_pid (inferior_ptid);
if (obuf)
*obuf = pp;
getpkt (&rs->buf, &rs->buf_size, 0);
}
+ /* Next, if the target can specify a description, read it. We do
+ this before anything involving memory or registers. */
+ target_find_description ();
+
/* On OSs where the list of libraries is global to all
processes, we fetch them early. */
if (gdbarch_has_global_solist (target_gdbarch))
solib_add (NULL, args->from_tty, args->target, auto_solib_add);
- /* Next, if the target can specify a description, read it. We do
- this before anything involving memory or registers. */
- target_find_description ();
-
if (non_stop)
{
if (!rs->non_stop_aware)
controlling. We default to adding them in the running state.
The '?' query below will then tell us about which threads are
stopped. */
-
- /* If we're not using the multi-process extensions, there's no
- way to know the pid of the reported threads; use the magic
- number. */
- if (!remote_multi_process_p (rs))
- inferior_ptid = magic_null_ptid;
-
remote_threads_info ();
}
else if (rs->non_stop_aware)
get_offsets (); /* Get text, data & bss offsets. */
+ /* If we could not find a description using qXfer, and we know
+ how to do it some other way, try again. This is not
+ supported for non-stop; it could be, but it is tricky if
+ there are no stopped threads when we connect. */
+ if (remote_read_description_p (args->target)
+ && gdbarch_target_desc (target_gdbarch) == NULL)
+ {
+ target_clear_description ();
+ target_find_description ();
+ }
+
/* Use the previously fetched status. */
gdb_assert (wait_status != NULL);
strcpy (rs->buf, wait_status);
PACKET_qXfer_spu_read },
{ "qXfer:spu:write", PACKET_DISABLE, remote_supported_packet,
PACKET_qXfer_spu_write },
+ { "qXfer:osdata:read", PACKET_DISABLE, remote_supported_packet,
+ PACKET_qXfer_osdata },
{ "QPassSignals", PACKET_DISABLE, remote_supported_packet,
PACKET_QPassSignals },
{ "QStartNoAckMode", PACKET_DISABLE, remote_supported_packet,
}
push_target (target); /* Switch to using remote target now. */
- /* Assume that the target is running, unless we learn otherwise. */
- target_mark_running (target);
+ /* Assume that the target is not running, until we learn otherwise. */
+ if (extended_p)
+ target_mark_exited (target);
/* Register extra event sources in the event loop. */
remote_async_inferior_event_token
}
discard_pending_stop_replies (pid);
- detach_inferior (pid);
target_mourn_inferior ();
}
struct packet_reg *reg = packet_reg_from_pnum (rsa, pnum);
cached_reg_t cached_reg;
- cached_reg.num = reg->regnum;
-
p = p1;
if (*p != ':')
Packet: '%s'\n"),
phex_nz (pnum, 0), p, buf);
+ cached_reg.num = reg->regnum;
+
fieldsize = hex2bin (p, cached_reg.data,
register_size (target_gdbarch,
reg->regnum));
if (ptid_equal (ptid, null_ptid))
ptid = inferior_ptid;
- if (status->kind == TARGET_WAITKIND_EXITED
- || status->kind == TARGET_WAITKIND_SIGNALLED)
+ if (status->kind != TARGET_WAITKIND_EXITED
+ && status->kind != TARGET_WAITKIND_SIGNALLED)
{
- int pid = ptid_get_pid (ptid);
- delete_inferior (pid);
- }
- else
- notice_new_inferiors (ptid);
+ notice_new_inferiors (ptid);
- /* Expedited registers. */
- if (stop_reply->regcache)
- {
- cached_reg_t *reg;
- int ix;
+ /* Expedited registers. */
+ if (stop_reply->regcache)
+ {
+ cached_reg_t *reg;
+ int ix;
+
+ for (ix = 0;
+ VEC_iterate(cached_reg_t, stop_reply->regcache, ix, reg);
+ ix++)
+ regcache_raw_supply (get_thread_regcache (ptid),
+ reg->num, reg->data);
+ VEC_free (cached_reg_t, stop_reply->regcache);
+ }
- for (ix = 0;
- VEC_iterate(cached_reg_t, stop_reply->regcache, ix, reg);
- ix++)
- regcache_raw_supply (get_thread_regcache (ptid),
- reg->num, reg->data);
- VEC_free (cached_reg_t, stop_reply->regcache);
+ remote_stopped_by_watchpoint_p = stop_reply->stopped_by_watchpoint_p;
+ remote_watch_data_address = stop_reply->watch_data_address;
}
- remote_stopped_by_watchpoint_p = stop_reply->stopped_by_watchpoint_p;
- remote_watch_data_address = stop_reply->watch_data_address;
-
stop_reply_xfree (stop_reply);
return ptid;
}
error (_("Remote failure reply: %s"), *buf);
}
+/* Return a pointer to an xmalloc'ed string representing an escaped
+ version of BUF, of len N. E.g. \n is converted to \\n, \t to \\t,
+ etc. The caller is responsible for releasing the returned
+ memory. */
+
+static char *
+escape_buffer (const char *buf, int n)
+{
+ struct cleanup *old_chain;
+ struct ui_file *stb;
+ char *str;
+ long length;
+
+ stb = mem_fileopen ();
+ old_chain = make_cleanup_ui_file_delete (stb);
+
+ fputstrn_unfiltered (buf, n, 0, stb);
+ str = ui_file_xstrdup (stb, &length);
+ do_cleanups (old_chain);
+ return str;
+}
+
/* Display a null-terminated packet on stdout, for debugging, using C
string notation. */
if (remote_debug)
{
+ struct cleanup *old_chain;
+ char *str;
+
*p = '\0';
- fprintf_unfiltered (gdb_stdlog, "Sending packet: ");
- fputstrn_unfiltered (buf2, p - buf2, 0, gdb_stdlog);
- fprintf_unfiltered (gdb_stdlog, "...");
+ str = escape_buffer (buf2, p - buf2);
+ old_chain = make_cleanup (xfree, str);
+ fprintf_unfiltered (gdb_stdlog, "Sending packet: %s...", str);
gdb_flush (gdb_stdlog);
+ do_cleanups (old_chain);
}
if (serial_write (remote_desc, buf2, p - buf2))
perror_with_name (_("putpkt: write failed"));
{
if (remote_debug)
{
- fprintf_unfiltered (gdb_stdlog, " Notification received: ");
- fputstrn_unfiltered (rs->buf, val, 0, gdb_stdlog);
- fprintf_unfiltered (gdb_stdlog, "\n");
+ struct cleanup *old_chain;
+ char *str;
+
+ str = escape_buffer (rs->buf, val);
+ old_chain = make_cleanup (xfree, str);
+ fprintf_unfiltered (gdb_stdlog,
+ " Notification received: %s\n",
+ str);
+ do_cleanups (old_chain);
}
handle_notification (rs->buf, val);
/* We're in sync now, rewait for the ack. */
if (remote_debug)
{
- fprintf_filtered (gdb_stdlog,
- "Bad checksum, sentsum=0x%x, csum=0x%x, buf=",
- pktcsum, csum);
- fputstrn_filtered (buf, bc, 0, gdb_stdlog);
- fputs_filtered ("\n", gdb_stdlog);
+ struct cleanup *old_chain;
+ char *str;
+
+ str = escape_buffer (buf, bc);
+ old_chain = make_cleanup (xfree, str);
+ fprintf_unfiltered (gdb_stdlog,
+ "\
+Bad checksum, sentsum=0x%x, csum=0x%x, buf=%s\n",
+ pktcsum, csum, str);
+ do_cleanups (old_chain);
}
/* Number of characters in buffer ignoring trailing
NULL. */
{
if (remote_debug)
{
- fprintf_unfiltered (gdb_stdlog, "Packet received: ");
- fputstrn_unfiltered (*buf, val, 0, gdb_stdlog);
- fprintf_unfiltered (gdb_stdlog, "\n");
+ struct cleanup *old_chain;
+ char *str;
+
+ str = escape_buffer (*buf, val);
+ old_chain = make_cleanup (xfree, str);
+ fprintf_unfiltered (gdb_stdlog, "Packet received: %s\n", str);
+ do_cleanups (old_chain);
}
/* Skip the ack char if we're in no-ack mode. */
if (remote_debug)
{
- fprintf_unfiltered (gdb_stdlog, " Notification received: ");
- fputstrn_unfiltered (*buf, val, 0, gdb_stdlog);
- fprintf_unfiltered (gdb_stdlog, "\n");
+ struct cleanup *old_chain;
+ char *str;
+
+ str = escape_buffer (*buf, val);
+ old_chain = make_cleanup (xfree, str);
+ fprintf_unfiltered (gdb_stdlog,
+ " Notification received: %s\n",
+ str);
+ do_cleanups (old_chain);
}
handle_notification (*buf, val);
if (res != 0)
error (_("Can't kill process"));
- delete_inferior (pid);
target_mourn_inferior ();
}
/* Unlike "target remote", we do not want to unpush the target; then
the next time the user says "run", we won't be connected. */
+ /* Call common code to mark the inferior as not running. */
+ generic_mourn_inferior ();
+
if (have_inferiors ())
{
extern void nullify_last_target_wait_ptid ();
}
else
{
- struct remote_state *rs = get_remote_state ();
-
- /* Call common code to mark the inferior as not running. */
- generic_mourn_inferior ();
if (!remote_multi_process_p (rs))
{
/* Check whether the target is running now - some remote stubs
return remote_read_qxfer (ops, "memory-map", annex, readbuf, offset, len,
&remote_protocol_packets[PACKET_qXfer_memory_map]);
+ case TARGET_OBJECT_OSDATA:
+ /* Should only get here if we're connected. */
+ gdb_assert (remote_desc);
+ return remote_read_qxfer
+ (ops, "osdata", annex, readbuf, offset, len,
+ &remote_protocol_packets[PACKET_qXfer_osdata]);
+
default:
return -1;
}
VEC_safe_push (remote_g_packet_guess_s, data->guesses, &new_guess);
}
+/* Return 1 if remote_read_description would do anything on this target
+ and architecture, 0 otherwise. */
+
+static int
+remote_read_description_p (struct target_ops *target)
+{
+ struct remote_g_packet_data *data
+ = gdbarch_data (target_gdbarch, remote_g_packet_data_handle);
+
+ if (!VEC_empty (remote_g_packet_guess_s, data->guesses))
+ return 1;
+
+ return 0;
+}
+
static const struct target_desc *
remote_read_description (struct target_ops *target)
{
struct remote_g_packet_data *data
= gdbarch_data (target_gdbarch, remote_g_packet_data_handle);
+ /* Do not try this during initial connection, when we do not know
+ whether there is a running but stopped thread. */
+ if (!target_has_execution || ptid_equal (inferior_ptid, null_ptid))
+ return NULL;
+
if (!VEC_empty (remote_g_packet_guess_s, data->guesses))
{
struct remote_g_packet_guess *guess;
return remote_multi_process_p (rs);
}
+static int
+extended_remote_can_run (void)
+{
+ if (remote_desc != NULL)
+ return 1;
+
+ return 0;
+}
+
static void
init_remote_ops (void)
{
extended_remote_ops.to_detach = extended_remote_detach;
extended_remote_ops.to_attach = extended_remote_attach;
extended_remote_ops.to_kill = extended_remote_kill;
+ extended_remote_ops.to_can_run = extended_remote_can_run;
}
static int
add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_spu_write],
"qXfer:spu:write", "write-spu-object", 0);
+ add_packet_config_cmd (&remote_protocol_packets[PACKET_qXfer_osdata],
+ "qXfer:osdata:read", "osdata", 0);
+
add_packet_config_cmd (&remote_protocol_packets[PACKET_qGetTLSAddr],
"qGetTLSAddr", "get-thread-local-storage-address",
0);
projects / binutils-gdb.git / blobdiff