[RFA] insight gdb_stdlog bug

[David Taylor]

When GDBTK_TO_RESULT is set, insight gobbles all output written to
gdb_stdlog.  But, the stuff written to gdb_stdlog isn't meant to be
parsed by insight -- it's meant to be read by a person.

While it might be desired -- when GDBTK_TO_RESULT is not set -- that
gdb_stdlog go the same place as gdb_stdout, it cannot have the same
pointer value as gdb_stdout or the code won't be able to distinguish
output meant for gdb_stdout vs output meant for gdb_stdlog when
GDBTK_TO_RESULT is set.

The following patch fixes that.  (The result is that output written to
gdb_stdlog appears in the insight console window if it is active.)

ChangeLog entries (3 separate ChangeLog files):

	* main.c (captured_main): Initialize gdb_stdlog to a copy of
 	gdb_stdout rather than to gdb_stdout, so that code can distinguish
 	them.

	* tui/tui-file.c (tui_file_fputs): Handle gdb_stdlog the same
	as gdb_stdout.

	* gdbtk/generic/gdbtk-hooks.c (gdbtk_fputs): Distinguish between
	gdb_stdlog and gdb_stdout.

Index: main.c
===================================================================
RCS file: /cvs/cvsfiles/devo/gdb/main.c,v
retrieving revision 1.207.12.1
diff -c -r1.207.12.1 main.c
*** main.c	2000/11/13 02:10:59	1.207.12.1
--- main.c	2000/12/20 22:23:25
***************
*** 203,209 ****
       within its own _initialize function.  */
    gdb_stdout = tui_fileopen (stdout);
    gdb_stderr = tui_fileopen (stderr);
!   gdb_stdlog = gdb_stdout;	/* for moment */
    gdb_stdtarg = gdb_stderr;	/* for moment */
  #else
    gdb_stdout = stdio_fileopen (stdout);
--- 203,209 ----
       within its own _initialize function.  */
    gdb_stdout = tui_fileopen (stdout);
    gdb_stderr = tui_fileopen (stderr);
!   gdb_stdlog = tui_fileopen (stdout); /* for moment */
    gdb_stdtarg = gdb_stderr;	/* for moment */
  #else
    gdb_stdout = stdio_fileopen (stdout);
Index: tui/tui-file.c
===================================================================
RCS file: /cvs/cvsfiles/devo/gdb/tui/tui-file.c,v
retrieving revision 1.5
diff -c -r1.5 tui-file.c
*** tui-file.c	2000/07/30 01:50:07	1.5
--- tui-file.c	2000/12/20 22:23:25
***************
*** 181,187 ****
       also tui_file_flush(). */
    if (fputs_unfiltered_hook
        && (file == gdb_stdout
! 	  || file == gdb_stderr))
      fputs_unfiltered_hook (linebuffer, file);
    else
      {
--- 181,188 ----
       also tui_file_flush(). */
    if (fputs_unfiltered_hook
        && (file == gdb_stdout
! 	  || file == gdb_stderr
! 	  || file == gdb_stdlog))
      fputs_unfiltered_hook (linebuffer, file);
    else
      {
Index: gdbtk/generic/gdbtk-hooks.c
===================================================================
RCS file: /cvs/cvsfiles/devo/gdb/gdbtk/generic/gdbtk-hooks.c,v
retrieving revision 1.7
diff -c -r1.7 gdbtk-hooks.c
*** gdbtk-hooks.c	2000/10/23 22:42:01	1.7
--- gdbtk-hooks.c	2000/12/20 22:23:29
***************
*** 250,256 ****
  
    if (result_ptr != NULL)
      {
!       if (result_ptr->flags & GDBTK_TO_RESULT)
  	{
  	  if (result_ptr->flags & GDBTK_MAKES_LIST)
  	    Tcl_ListObjAppendElement (NULL, result_ptr->obj_ptr,
--- 250,258 ----
  
    if (result_ptr != NULL)
      {
!       if (stream == gdb_stdlog)
! 	gdbtk_two_elem_cmd ("gdbtk_tcl_fputs", (char *) ptr);
!       else if (result_ptr->flags & GDBTK_TO_RESULT)
  	{
  	  if (result_ptr->flags & GDBTK_MAKES_LIST)
  	    Tcl_ListObjAppendElement (NULL, result_ptr->obj_ptr,