New gdbserver option --debug-format=timestamp.

	* NEWS: Mention it.

	gdbserver/
	* configure.ac (AC_CHECK_FUNCS): Add test for gettimeofday.
	* configure: Regenerate.
	* config.in: Regenerate.
	* Makefile.in (SFILES): Add debug.c.
	(OBS): Add debug.o.
	* debug.c: New file.
	* debug.h: New file.
	* linux-aarch64-low.c (*): Update all debugging printfs to use
	debug_printf instead of fprintf.
	* linux-arm-low.c (*): Ditto.
	* linux-cris-low.c (*): Ditto.
	* linux-crisv32-low.c (*): Ditto.
	* linux-m32r-low.c (*): Ditto.
	* linux-sparc-low.c (*): Ditto.
	* linux-x86.c (*): Ditto.
	* linux-low.c (*): Ditto.
	(linux_wait_1): Add calls to debug_enter, debug_exit.
	(linux_wait): Remove redundant debugging printf.
	(stop_all_lwps): Add calls to debug_enter, debug_exit.
	(linux_resume, unstop_all_lwps): Ditto.
	* mem-break.c (*): Update all debugging printfs to use
	debug_printf instead of fprintf.
	* remote-utils.c (*): Ditto.
	* thread-db.c (*): Ditto.
	* server.c #include <ctype.h>, "gdb_vecs.h".
	(debug_threads): Moved to debug.c.
	(*): Update all debugging printfs to use debug_printf instead of
	fprintf.
	(start_inferior): Replace call to fflush with call to debug_flush.
	(monitor_show_help): Mention set debug-format.
	(parse_debug_format_options): New function.
	(handle_monitor_command): Handle "monitor set debug-format".
	(gdbserver_usage): Mention --debug-format.
	(main): Parse --debug-format.
	* server.h (debug_threads): Declaration moved to debug.h.
	#include "debug.h".
	* tracepoint.c (trace_debug_1) [!IN_PROCESS_AGENT]: Add version of
	trace_debug_1 that uses debug_printf.
	(tracepoint_look_up_symbols): Update all debugging printfs to use
	debug_printf instead of fprintf.

	doc/
	* gdb.texinfo (Server): Mention --debug-format=all|none|timestamp.
	(gdbserver man): Ditto.

	testsuite/
	* gdb.server/server-mon.exp: Add tests for "set debug-format".

2 files changed, 44 insertions, 0 deletions

diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog
index 74a2763..0ccad7e 100644
--- a/gdb/doc/ChangeLog
+++ b/gdb/doc/ChangeLog
@@ -1,3 +1,8 @@
+2014-01-22  Doug Evans  <dje@google.com>
+
+	* gdb.texinfo (Server): Mention --debug-format=all|none|timestamp.
+	(gdbserver man): Ditto.
+
 2014-01-16  Markus Metzger  <markus.t.metzger@intel.com>
 
 	* gdb.texinfo: Document limited reverse/replay support
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index e77ca2a..a990d2a 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -18507,6 +18507,7 @@ connections and even in the @kbd{target extended-remote} mode.  The
 multiple instances of @code{gdbserver} running on the same host, since each
 instance closes its port after the first connection.
 
+@anchor{Other Command-Line Arguments for gdbserver}
 @subsubsection Other Command-Line Arguments for @code{gdbserver}
 
 @cindex @option{--debug}, @code{gdbserver} option
@@ -18517,6 +18518,23 @@ The @option{--remote-debug} option tells @code{gdbserver} to display
 remote protocol debug output.  These options are intended for
 @code{gdbserver} development and for bug reports to the developers.
 
+@cindex @option{--debug-format}, @code{gdbserver} option
+The @option{--debug-format=option1[,option2,...]} option tells
+@code{gdbserver} to include additional information in each output.
+Possible options are:
+
+@table @code
+@item none
+Turn off all extra information in debugging output.
+@item all
+Turn on all extra information in debugging output.
+@item timestamps
+Include a timestamp in each line of debugging output.
+@end table
+
+Options are processed in order.  Thus, for example, if @option{none}
+appears last then no additional information is added to debugging output.
+
 @cindex @option{--wrapper}, @code{gdbserver} option
 The @option{--wrapper} option specifies a wrapper to launch programs
 for debugging.  The option should be followed by the name of the
@@ -18587,6 +18605,22 @@ Disable or enable general debugging messages.
 Disable or enable specific debugging messages associated with the remote
 protocol (@pxref{Remote Protocol}).
 
+@item monitor set debug-format option1@r{[},option2,...@r{]}
+Specify additional text to add to debugging messages.
+Possible options are:
+
+@table @code
+@item none
+Turn off all extra information in debugging output.
+@item all
+Turn on all extra information in debugging output.
+@item timestamps
+Include a timestamp in each line of debugging output.
+@end table
+
+Options are processed in order.  Thus, for example, if @option{none}
+appears last then no additional information is added to debugging output.
+
 @item monitor set libthread-db-search-path [PATH]
 @cindex gdbserver, search path for @code{libthread_db}
 When this command is issued, @var{path} is a colon-separated list of
@@ -44342,6 +44376,11 @@ Instruct @code{gdbserver} to display remote protocol debug output.
 This option is intended for @code{gdbserver} development and for bug reports to
 the developers.
 
+@item --debug-format=option1@r{[},option2,...@r{]}
+Instruct @code{gdbserver} to include extra information in each line
+of debugging output.
+@xref{Other Command-Line Arguments for gdbserver}.
+
 @item --wrapper
 Specify a wrapper to launch programs
 for debugging.  The option should be followed by the name of the