./

	* cli/cli-logging.c: New file.
	* cli-out.c (struct ui_out_data): Add original_stream.
	(cli_redirect): New function.
	(cli_ui_out_impl): Add cli_redirect.
	(cli_out_new): Initialize original_stream.
	* ui-out.c (default_ui_out_impl): Add NULL for redirect member.
	(uo_redirect, ui_out_redirect): New.
	* ui-out.h (struct ui_out_impl): Add redirect member.
	(redirect_ftype): New.
	(ui_out_redirect): Add prototype.
	* Makefile.in: Add rules for cli-logging.c.
	* NEWS: Mention "set logging".
mi/
	* mi-out.c (mi_ui_out_impl): Add NULL for redirect member.
tui/
	* tui-out.c (tui_ui_out_impl): Add NULL for redirect member.
doc/
	* gdb.texinfo (Logging output): New chapter.

1 files changed, 22 insertions, 0 deletions

diff --git a/gdb/cli-out.c b/gdb/cli-out.c
index 38bf36ffaf..2e5a3c16b1 100644
--- a/gdb/cli-out.c
+++ b/gdb/cli-out.c
@@ -31,6 +31,7 @@
 struct ui_out_data
   {
     struct ui_file *stream;
+    struct ui_file *original_stream;
     int suppress_output;
   };
 typedef struct ui_out_data cli_out_data;
@@ -64,6 +65,7 @@ static void cli_message (struct ui_out *uiout, int verbosity,
 			 const char *format, va_list args);
 static void cli_wrap_hint (struct ui_out *uiout, char *identstring);
 static void cli_flush (struct ui_out *uiout);
+static int cli_redirect (struct ui_out *uiout, struct ui_file *outstream);
 
 /* This is the CLI ui-out implementation functions vector */
 
@@ -87,6 +89,7 @@ static struct ui_out_impl cli_ui_out_impl =
   cli_message,
   cli_wrap_hint,
   cli_flush,
+  cli_redirect,
   0, /* Does not need MI hacks (i.e. needs CLI hacks).  */
 };
 
@@ -324,6 +327,24 @@ cli_flush (struct ui_out *uiout)
   gdb_flush (data->stream);
 }
 
+int
+cli_redirect (struct ui_out *uiout, struct ui_file *outstream)
+{
+  struct ui_out_data *data = ui_out_data (uiout);
+  if (outstream != NULL)
+    {
+      data->original_stream = data->stream;
+      data->stream = outstream;
+    }
+  else if (data->original_stream != NULL)
+    {
+      data->stream = data->original_stream;
+      data->original_stream = NULL;
+    }
+
+  return 0;
+}
+
 /* local functions */
 
 /* Like cli_field_fmt, but takes a variable number of args
@@ -362,6 +383,7 @@ cli_out_new (struct ui_file *stream)
 
   cli_out_data *data = XMALLOC (cli_out_data);
   data->stream = stream;
+  data->original_stream = NULL;
   data->suppress_output = 0;
   return ui_out_new (&cli_ui_out_impl, data, flags);
 }