struct ui_file *gdb_stdlog;
static int remote_desc = INVALID_DESCRIPTOR;
+static int listen_desc = INVALID_DESCRIPTOR;
/* FIXME headerize? */
extern int using_threads;
# define write(fd, buf, len) send (fd, (char *) buf, len, 0)
#endif
+int
+gdb_connected (void)
+{
+ return remote_desc != INVALID_DESCRIPTOR;
+}
+
+static void
+enable_async_notification (int fd)
+{
+#if defined(F_SETFL) && defined (FASYNC)
+ int save_fcntl_flags;
+
+ save_fcntl_flags = fcntl (fd, F_GETFL, 0);
+ fcntl (fd, F_SETFL, save_fcntl_flags | FASYNC);
+#if defined (F_SETOWN)
+ fcntl (fd, F_SETOWN, getpid ());
+#endif
+#endif
+}
+
+static int
+handle_accept_event (int err, gdb_client_data client_data)
+{
+ struct sockaddr_in sockaddr;
+ socklen_t tmp;
+
+ if (debug_threads)
+ fprintf (stderr, "handling possible accept event\n");
+
+ tmp = sizeof (sockaddr);
+ remote_desc = accept (listen_desc, (struct sockaddr *) &sockaddr, &tmp);
+ if (remote_desc == -1)
+ perror_with_name ("Accept failed");
+
+ /* Enable TCP keep alive process. */
+ tmp = 1;
+ setsockopt (remote_desc, SOL_SOCKET, SO_KEEPALIVE,
+ (char *) &tmp, sizeof (tmp));
+
+ /* Tell TCP not to delay small packets. This greatly speeds up
+ interactive response. */
+ tmp = 1;
+ setsockopt (remote_desc, IPPROTO_TCP, TCP_NODELAY,
+ (char *) &tmp, sizeof (tmp));
+
+#ifndef USE_WIN32API
+ close (listen_desc); /* No longer need this */
+
+ signal (SIGPIPE, SIG_IGN); /* If we don't do this, then gdbserver simply
+ exits when the remote side dies. */
+#else
+ closesocket (listen_desc); /* No longer need this */
+#endif
+
+ delete_file_handler (listen_desc);
+
+ /* Convert IP address to string. */
+ fprintf (stderr, "Remote debugging from host %s\n",
+ inet_ntoa (sockaddr.sin_addr));
+
+ enable_async_notification (remote_desc);
+
+ /* Register the event loop handler. */
+ add_file_handler (remote_desc, handle_serial_event, NULL);
+
+ /* We have a new GDB connection now. If we were disconnected
+ tracing, there's a window where the target could report a stop
+ event to the event loop, and since we have a connection now, we'd
+ try to send vStopped notifications to GDB. But, don't do that
+ until GDB as selected all-stop/non-stop, and has queried the
+ threads' status ('?'). */
+ target_async (0);
+
+ return 0;
+}
+
/* Open a connection to a remote debugger.
NAME is the filename used for communication. */
void
remote_open (char *name)
{
-#if defined(F_SETFL) && defined (FASYNC)
- int save_fcntl_flags;
-#endif
char *port_str;
port_str = strchr (name, ':');
#endif
fprintf (stderr, "Remote debugging using %s\n", name);
-#endif /* USE_WIN32API */
transport_is_reliable = 0;
+
+ enable_async_notification (remote_desc);
+
+ /* Register the event loop handler. */
+ add_file_handler (remote_desc, handle_serial_event, NULL);
+#endif /* USE_WIN32API */
}
else
{
int port;
struct sockaddr_in sockaddr;
socklen_t tmp;
- int tmp_desc;
char *port_end;
port = strtoul (port_str + 1, &port_end, 10);
}
#endif
- tmp_desc = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP);
- if (tmp_desc < 0)
+ listen_desc = socket (PF_INET, SOCK_STREAM, IPPROTO_TCP);
+ if (listen_desc < 0)
perror_with_name ("Can't open socket");
/* Allow rapid reuse of this port. */
tmp = 1;
- setsockopt (tmp_desc, SOL_SOCKET, SO_REUSEADDR, (char *) &tmp,
+ setsockopt (listen_desc, SOL_SOCKET, SO_REUSEADDR, (char *) &tmp,
sizeof (tmp));
sockaddr.sin_family = PF_INET;
sockaddr.sin_port = htons (port);
sockaddr.sin_addr.s_addr = INADDR_ANY;
- if (bind (tmp_desc, (struct sockaddr *) &sockaddr, sizeof (sockaddr))
- || listen (tmp_desc, 1))
+ if (bind (listen_desc, (struct sockaddr *) &sockaddr, sizeof (sockaddr))
+ || listen (listen_desc, 1))
perror_with_name ("Can't bind address");
/* If port is zero, a random port will be selected, and the
if (port == 0)
{
socklen_t len = sizeof (sockaddr);
- if (getsockname (tmp_desc, (struct sockaddr *) &sockaddr, &len) < 0
+ if (getsockname (listen_desc, (struct sockaddr *) &sockaddr, &len) < 0
|| len < sizeof (sockaddr))
perror_with_name ("Can't determine port");
port = ntohs (sockaddr.sin_port);
fprintf (stderr, "Listening on port %d\n", port);
fflush (stderr);
- tmp = sizeof (sockaddr);
- remote_desc = accept (tmp_desc, (struct sockaddr *) &sockaddr, &tmp);
- if (remote_desc == -1)
- perror_with_name ("Accept failed");
-
- /* Enable TCP keep alive process. */
- tmp = 1;
- setsockopt (remote_desc, SOL_SOCKET, SO_KEEPALIVE,
- (char *) &tmp, sizeof (tmp));
-
- /* Tell TCP not to delay small packets. This greatly speeds up
- interactive response. */
- tmp = 1;
- setsockopt (remote_desc, IPPROTO_TCP, TCP_NODELAY,
- (char *) &tmp, sizeof (tmp));
-
-
-#ifndef USE_WIN32API
- close (tmp_desc); /* No longer need this */
-
- signal (SIGPIPE, SIG_IGN); /* If we don't do this, then gdbserver simply
- exits when the remote side dies. */
-#else
- closesocket (tmp_desc); /* No longer need this */
-#endif
-
- /* Convert IP address to string. */
- fprintf (stderr, "Remote debugging from host %s\n",
- inet_ntoa (sockaddr.sin_addr));
+ /* Register the event loop handler. */
+ add_file_handler (listen_desc, handle_accept_event, NULL);
transport_is_reliable = 1;
}
-
-#if defined(F_SETFL) && defined (FASYNC)
- save_fcntl_flags = fcntl (remote_desc, F_GETFL, 0);
- fcntl (remote_desc, F_SETFL, save_fcntl_flags | FASYNC);
-#if defined (F_SETOWN)
- fcntl (remote_desc, F_SETOWN, getpid ());
-#endif
-#endif
-
- /* Register the event loop handler. */
- add_file_handler (remote_desc, handle_serial_event, NULL);
}
void
#else
close (remote_desc);
#endif
+ remote_desc = INVALID_DESCRIPTOR;
}
/* Convert hex digit A to a number. */
projects / deliverable / binutils-gdb.git / blobdiff