gdb/

	* NEWS: Document the new gdbserver --once option.

gdb/doc/
	* gdb.texinfo (Starting and Stopping Trace Experiments): New anchor
	for disconnected tracing.
	(Multi-Process Mode for @code{gdbserver}): Mention --multi and
	extended-remote relationship.  Mention --once.
	(TCP port allocation lifecycle of @code{gdbserver}): New.

gdb/gdbserver/
	* remote-utils.c (handle_accept_event): Close LISTEN_DESC only if
	RUN_ONCE.  Comment for the LISTEN_DESC delete_file_handler call.
	(remote_prepare): New function with most of the TCP code from ...
	(remote_open): ... here.  Detect PORT here unconditionally.  Move also
	setting transport_is_reliable.
	* server.c (run_once): New variable.
	(gdbserver_usage): Document it.
	(main): Set run_once for `--once'.  Call remote_prepare.  Exit after
	the first run if RUN_ONCE.
	* server.h (run_once, remote_prepare): New declarations.

gdb/testsuite/
	* gdb.base/solib-disc.exp: Set gdbserver_reconnect_p.
	* lib/gdb.exp (gdb_init): Clear gdbserver_reconnect_p.
	* lib/gdbserver-support.exp (gdbserver_start): Add `--once' if
	!gdbserver_reconnect_p..
	(gdbserver_reconnect): Call error if !gdbserver_reconnect_p..

1 files changed, 2 insertions, 0 deletions

diff --git a/gdb/gdbserver/server.h b/gdb/gdbserver/server.h
index 77f5dd6..f1147d6 100644
--- a/gdb/gdbserver/server.h
+++ b/gdb/gdbserver/server.h
@@ -355,6 +355,7 @@ extern int disable_packet_Tthread;
 extern int disable_packet_qC;
 extern int disable_packet_qfThreadInfo;
 
+extern int run_once;
 extern int multi_process;
 extern int non_stop;
 
@@ -406,6 +407,7 @@ int putpkt (char *buf);
 int putpkt_binary (char *buf, int len);
 int putpkt_notif (char *buf);
 int getpkt (char *buf);
+void remote_prepare (char *name);
 void remote_open (char *name);
 void remote_close (void);
 void write_ok (char *buf);