(gdb_listfiles): Fix comments and cleanup.

[deliverable/binutils-gdb.git] / gdb / ChangeLog-gdbtk

Sat Jul 18 12:28:39 1998  Martin M. Hunt  <hunt@cygnus.com>

	* gdbtk.c (gdbtk_cleanup): Add call to tcl function
	gdbtk_cleanup. We need this so the GUI gets to clean
	up no matter how GDB exits.

Wed Jul  1 13:10:58 1998  Jim Ingham   <jingham@cygnus.com>

	* Moved gdbtk_hooks.c & gdbtk_cmds.c to gdbtk-hooks.c &
	gdbtk-cmds.c to comply with the gdb conventions.  Changed the
	configure & makefile to reflect the change...
	
Wed Jul  1 11:07:21 1998  Jim Ingham   <jingham@cygnus.com>

	* gdbtk.c: removed all the commands and hooks from this file so
	now it contains only the startup code.
	* gdbtk.c (gdbtk_init): Fixed a bug in the startup code on Windows 
	that caused gdbtk not to find the share directory unless
	GDBTK_LIBRARY was set.
 	* gdbtk_cmds.c: New file - this contains all the Tcl commands that
	gdb defines.  All the old commands were moved here, the
	string-based commands were converted to object commands, and the
	object-based commands were all converted to uniformly use the
	call_wrapper.  A new function, Gdbtk_Init was added to centralize
	initializing the gdb package.
	* gdbtk_hooks.c: New file - All the hooks were moved here, and a new
	function, gdbtk_add_hooks was added to centralize adding all these 
	hook functions.  gdbtk_fputs was also modified to handle the new
	result_ptr structure.  See the comments in gdbtk.h for more
	details.
	* gdbtk.h: New file - this contains all the defines and globals
	shared by gdbtk.c, gdbtk_cmds.c & gdbtk_hooks.c
	* Makefile.in, configure.in & configure: mutatis mutandi for the
	new files.
	

Mon Jun 29 11:49:17 1998  Keith Seitz  <keiths@cygnus.com>

	* main.c (main): Don't include gdbtk test code if GDBTK is
	not defined by configure.

	* configure.in: When enabling gdbtk, add "-DGDBTK" to ENABLE_CFLAGS.

	* configure: Regenerate.
	
Fri Jun 26 13:56:07 1998  Keith Seitz  <keiths@cygnus.com>

	* gdbtk.c: Change all references to static global "interp" to
	"gdbtk_interp" and export this global.
	(gdbtk_init): If gdbtk_source_filename is not NULL, source this file
	into the interpreter when it goes idle.
	Add new command "gdb_search".
	(gdb_search): New function which searches the symbol table.
	(gdbtk_test): New function called by main when the --tclcommand
	option is used.

	* main.c (main): Add a new option "--tclcommand" which is used
	by the testsuite to source a file into the interpreter when it
	goes idle.

Wed Jun 17 19:12:23 1998  Jeff Holcomb  <jeffh@cygnus.com>

	* Makefile.in (install-only): Install tracing help files.

Mon Jun 15 13:18:21 1998  Jim Ingham <jingham@cygnus.com>

	* gdbtk.c (gdbtk_init): Add elements to the auto_path AS LIST
	ELEMENTS.  This allows gdbtk to work when installed in a directory 
	which has a space in the path.  D. Moseley pointed out the bug.


Tue Jun  9 14:10:46 1998  Keith Seitz  <keiths@cygnus.com>

	* gdbtk.c (gdb_get_vars_command): Return static variables and
	variables stored in registers.

	* main.c (main): Call pre/post_add_symbol_hook's when loading
	executables and symbol files.
	
Fri Jun  5 00:16:22 1998  Martin M. Hunt  <hunt@cygnus.com>

	* gdbtk.c (gdbtk_init): Change all references to
	GDBTK_IDE to IDE_ENABLED.

Thu Jun  4 18:31:53 1998  Martin M. Hunt  <hunt@cygnus.com>

	* gdbtk.c (gdbtk_init): Initialize tkTable.

Thu Jun  4 10:15:03 1998  Elena Zannoni  <ezannoni@kwikemart.cygnus.com>

	* gdbtk.c: merged:
	
	- Elena Zannoni  <ezannoni@kwikemart.cygnus.com>
        (call_obj_wrapper): in case of error, copy the
        error message from the result to the error_string.
        (gdbtk_fputs): add comments.
        (gdb_actions_command): call validate_actionline when installing the
        tracepoint, to do the syntax checking of the actions for us.
        - Elena Zannoni  <ezannoni@kwikemart.cygnus.com>
        (gdb_get_trace_frame_num): new function to get the
        trace frame number from gdb.
        (gdbtk_init): added new command gdb_get_trace_frame_num.
        - Jim Blandy  <jimb@zwingli.cygnus.com>
        (struct wrapped_call_objs): Change the `func' member to
        be a Tcl_ObjCmdProc, not an Tcl_CmdProc, since it accepts a vector
        of objects as arguments.  Change the object vector to be const,
        since that's what all the users of this structure seem to expect.
        (call_obj_wrapper): Cast clientData properly before storing it in
        the wrapped_args structure.
	
Thu May 28 17:19:14 1998  Keith Seitz  <keiths@cygnus.com>

	* gdbtk.c (_initialize_gdbtk): Get rid of the console. Patch from
	Chris Faylor (cgf@cygnus.com).

	* configure.in: Link cygwin32 with subsystem console.

	* configure: Regenerated
	
Sun May 24 14:00:24 1998  Keith Seitz  <keiths@cygnus.com>

	* ser-unix.c (wait_for): Do not reset timeout_remaining for cygwin32 so that
	we can use this member to track real timeouts.
	(hardwire_readchar): Modify for cygwin32 so that we only ever use a real
	system timeout of one second. Track the "real" timeout as a series of these
	one second timeouts.
	Call ui_loop_hook to keep the gui alive.

	* top.c: Define new hook for cygwin32, "ui_loop_hook".

	* gdbtk.c (gdbtk_init): Add ui_loop_hook for CygWin32 to work around
	update problems.

Thu May 21 13:56:24 1998  Elena Zannoni  <ezannoni@kwikemart.cygnus.com>
       
	* gdbtk.c: reinserted the changes that were accidentally deleted:
	(_initialize_gdbtk): Use correct device names in
	cygwin-specific call (cosmetic change). 
        (gdbtk_ignorable_warning): removed va_list parameter,
	which was unused.
        (_initialize_gdbtk): add cygwin32 specific code to
	allow `gdb -nw' to work when specified specified from a windows
	console-mode command line.

Wed May 13 11:12:58 1998  James Ingham  <jingham@leda.cygnus.com>

	* gdbtk.c: Fixed a goof in the definition of the gdb_get_args &
	gdb_get_locals Tcl commands.  Moved the previous ChangeLog entry
	from ChangeLog to ChangeLog-gdbtk (here)...
	
Tue May 12 13:29:20 1998  Jeff Holcomb  <jeffh@cygnus.com>

	* Makefile.in (install-only): Add images/icons.txt and
	images2/icons.txt to files that need to be installed.

Tue May 12 12:03:16 1998  James Ingham  <jingham@leda.cygnus.com>

	* gdbtk.c: Add an object call wrapper for the new Tcl_Obj based
	commands.  This way the obj commands will also go through
	catch_errors.  This is just a bandaid while I rewrite the
	string-based commands to use the object format.

Tue May  5 09:30:25 1998  Christopher Faylor <cgf@cygnus.com>

	* gdbtk.c (_initialize_gdbtk): Use correct device names in
	cygwin-specific call (cosmetic change). 

Wed Apr 29 15:53:16 1998  Elena Zannoni  <ezannoni@kwikemart.cygnus.com>

	* gdbtk.c (gdbtk_ignorable_warning): removed va_list parameter,
	which was unused.

Thu Apr 23 19:01:05 1998  Keith Seitz  <keiths@onions.cygnus.com>

	* Makefile.in (install-only): Install help files.

Wed Apr 22 21:17:35 1998  Christopher Faylor <cgf@cygnus.com>

	* gdbtk.c (_initialize_gdbtk): add cygwin32 specific code to
	allow `gdb -nw' to work when specified specified from a windows
	console-mode command line.

Wed Apr 15 11:23:53 1998  Stan Shebs  <shebs@andros.cygnus.com>

	* gdbtcl: Remove directory and contents, this version of
	the interface is obsolete.

Mon Apr 13 16:17:52 1998  Martin M. Hunt  <hunt@cygnus.com>

	* gdbtk.c (gdb_loadfile): Change fstat() call to stat().
	Needed because you can't convert a FILE* to an fd.

Mon Apr 13 16:28:07 1998  Elena Zannoni  <ezannoni@kwikemart.cygnus.com>
	
	* gdbtk.c: (perror_with_name_wrapper) new function to call 
	perror_with_name safely.
	(gdb_loadfile) added source vs. executable time stamp check.
	(gdbtk_warning) new function to pass a warning message to the gui.
	(gdbtk_ignorable_warning) new function to pass a warning
	to the gui. Used only for the src. vs. exec check.
	(gdbtk_init) added warning_hook 
	added include <sys/stat.h>

Mon Apr 13 12:58:26 1998  Keith Seitz  <keiths@onions.cygnus.com>

	* gdbtk.c (gdbtk_start_timer): Include on all platforms. Decrease
	timer interval a little.
	(gdbtk_stop_timer): Include on all platforms.
	(gdbtk_wait): No more signals! Use a timer on all platforms to keep the
	GUI alive.
	(gdbtk_init): Remove FIOASYNC and all x_fd references. Now using timers
	on all platforms.
	
Fri Apr 10 15:48:10 1998  Jason Molenda  (crash@bugshack.cygnus.com)

        * gdbtk.c (gdb_listfiles): Allocate space for 'files' dynamically.

Thu Apr  9 14:20:59 1998  Martin M. Hunt  <hunt@cygnus.com>

	* gdbtk.c (gdbtk_init): Remove redundant variable "IDE".

Tue Apr  7 15:13:58 1998  Stan Shebs  <shebs@andros.cygnus.com>

	* gdbtk.tcl: Remove, no longer used.

Tue Apr  7 12:49:45 1998  Keith Seitz  <keiths@onions.cygnus.com>

	* gdbtk.c (gdb_cmd): NEVER call the busy, update, and idle hooks.

Tue Mar 31 15:42:06 1998  Keith Seitz  <keiths@onions.cygnus.com>

	* gdbtk.c (gdb_loadfile): Don't use the return result from
 	sprintf, which returns a char * under SunOS4.

Tue Mar 31 17:18:43 1998  Ian Lance Taylor  <ian@cygnus.com>

	* configure.in: Add $(LIBIDETCL) as well as $(LIBIDE) if
	--enable-ide.
	* Makefile.in (IDE_CFLAGS_X): Add -I for libidetcl/src.
	(LIBIDETCL): Define.
	* configure: Rebuild.

Sun Mar 29 21:19:46 1998  Keith Seitz  <keiths@onions.cygnus.com>

	* gdbtk.c (gdb_get_tracepoint_info): Change formatting of address.
	(tracepoint_exists): Remove code which confuses assembly traces.

Sat Mar 28 12:13:23 1998  Keith Seitz  <keiths@onions.cygnus.com>

	* gdbtk.c (gdb_cmd): If argc > 2, assume that the busy and idle hooks
	should not be called.

Thu Mar 26 22:29:28 1998  Elena Zannoni  <ezannoni@kwikemart.cygnus.com>

        * gdbtk.c: (gdb_trace_status) new function.
        (gdbtk_init) added command "gdb_is_tracing".
        (tracepoint_notify) added passcount information.

Thu Mar 26 12:00:35 1998  Martin M. Hunt  <hunt@cygnus.com>

	* gdbtk.c (gdbtk_fputs): Insert fencepost.
	(gdb_loc): Correct pc calculation.
	(gdb_immediate_command): Return if a load is in progress.
	(gdb_cmd): Return if a load is in progress.
	(target_stop_wrapper): New function.
	(gdb_stop): Call target_stop_wrapper.
	(x_event): Add fencepost and optimize load cancel check.
	(gdbtk_start_timer): Set up structs only once.
	(gdbtk_stop_timer): Just use preset structs to set timer parameters.
	(gdb_loadfile): If file cannot be loaded, return error message.
	(gdb_loadfile): Add space before tab so that lines without
	a '-' can later be changed to have one.

Wed Mar 25 14:08:51 1998  Elena Zannoni  <ezannoni@kwikemart.cygnus.com>

	* gdbtk.c (gdbtk_pre_add_symbol): Use Tcl_merge to form Tcl commands.

Mon Mar 23 13:41:39 1998  Elena Zannoni  <ezannoni@kwikemart.cygnus.com>

	* gdbtk.c (gdb_get_mem): Rewrite to fetch entire contents
	of the memory window at once.

Sat Mar 21 19:34:49 1998  Elena Zannoni  <ezannoni@kwikemart.cygnus.com>

	Merged changes from Foundry: list follows by author:
	
	- Tom Tromey  <tromey@cygnus.com>

	* Makefile.in (gdbres.o): New target.
	(WINDRES): New define.
	* configure: Rebuilt.
	* configure.in (WINDRES): Define.
	(CONFIG_OBS): Include gdbres.o on Windows.
	* gdbtool.ico: New file.
	* gdb.rc: New file.
        * gdbtk.c (gdbtk_init): Call ide_create_messagebox_command.
	(gdbtk_cleanup): Call ide_interface_deregister_all.
	(gdbtk_init): Pass event handle to cleanup.
	(TclDebug): Use Tcl_Merge to construct command.
	(gdbtk_init): Call ide_create_cygwin_path_command.

        - Martin M. Hunt  <hunt@cygnus.com>

	* gdbtk.c (gdb_set_bp): Set addr_string for bp.
	(gdb_get_breakpoint_info): Demangle function 
	names in breakpoint info.
	Include "demangle.h".
	(gdb_loc, gdb_listfuncs): Demangle C++ 
	function names.
	(gdb_set_bp): Properly quote filename to fix
	problems with spaces. Send pc back as a hex string.
	(gdb_listfuncs): Remove debugging line.
	 Turn off some debugging lines.
 	(breakpoint_notify): Return correct line number.
	(gdb_get_breakpoint_info): Return correct line number.
	(gdb_set_bp): New function to provide a better way to
	set breakpoints.
	(gdbtk_readline, gdbtk_readline_begin): Memory 
	allocated by tcl needs to be freed by Tcl_Free().
	(find_file_in_dir): Deleted.
	(gdb_find_file_command): Call full_lookup_symtab().
	(gdb_listfuncs): Call full_lookup_symtab().
	(full_lookup_symtab): New function.  Like lookup_symtab
	except handles multiple files with the same basename,
	full pathnames, and always sets symtab->fullname.
	(gdb_loadfile): Call full_lookup_symtab(). Clear
	realloc'd memory.
	(gdb_loadfile):  Don't tag lines without source.
	Tag source lines with source_tag.
	(gdb_find_file_command, find_file_in_dir):
 	Rewrite.  Now searches symtabs and psymtabs for a match
	on the partial or full filename.  Returns the full pathname.
	(gdb_loadfile): Realloc additional memory
	if someone loads in a file with more than 160,000
	lines.  I don't know if this really works because
	I don't have enough memory to test it.
	(gdb_sourcelines): Deleted.
	(gdb_loadfile): New function. Takes a text widget
	and loads it with the contents of a file.  Marks
	and tags source lines.
	(pc_changed): New function.
	(get_pc_register): Returns the value of
	the PC to GDB.
	(gdb_loc): If looking on the stack, return
	real pc along with calling source line.
	(gdb_loc): Return "" instead of "N/A" if
	filename is not found.
	(gdb_get_breakpoint_info): Same.
	(get_register): For Natural mode, set format to 0.
	 Minor bugfixes from keiths.
	(TclDebug): New function for debugging use.
	(gdb_loc): Return correct PC for frames
	that are not the innermost frame.
	(gdb_listfiles): Rewritten to use object
	API.  Now takes an optional dirname which will cause
	only files in that directory or its subdirectories
	to be returned.  Now returns basenames instead of
	full pathnames.
	(gdb_cmd): Set/reset load_in_progress flag.
	(call_wrapper): Don't pop up dialog for errors in
	downloads; just abort download.
	(gdbtk_load_hash): Set return value correctly.

        -  Keith Seitz  <keiths@onions.cygnus.com>

	* gdbtk.c (gdbtk_init): Define the ui_loop_hook so that it can be
	called by routines which might block, allowing us to update the GUI.
	(gdbtk_wait): Move timer calls to annotation hooks.
	(gdbtk_init): Define the annotation hooks.
	(gdbtk_annotate_starting): New function for cygwin32 hosts.
	(gdbtk_annotate_stopped): New function for cygwin32 hosts.
	(gdbtk_annotate_exited): New function for cygwin32 hosts.
	(gdbtk_annotate_signalled): New function. for cygwin32 hosts.
	(gdbtk_init): Use gdbtk_print_frame_info hook.
	(gdbtk_print_frame_info): New function which sets current_source_symtab
	based on the given symtab and line info.
	(gdb_immediate_command): New function which does 
	not buffer any
	output. (Contrast to gdb_cmd.)
	(gdb_prompt_command): New function to return gdb's prompt.
	(find_file_in_dir): New functon which searches source paths 
	for a given filename.
	(gdb_find_file): New function which returns path to given file -- uses
	find_file_in_dir.
	(gdbtk_init): Install "gdb_immediate", "gdb_find_file", and 
	"gdb_prompt"
 	commands into interpreter.

        -  Ian Lance Taylor  <ian@cygnus.com>

	* gdbtk.c (gdbtk_timer_going): If __CYGWIN32__, new static
	variable.
	(gdb_cmd): If __CYGWIN32__, if executing the load command, call
	gdbtk_start_timer and gdbtk_stop_timer.
	(call_wrapper): If __CYGWIN32__, if the timer is going, turn it
	off.  Clear load_in_progress.
	(x_event): If load_in_progress, quit if download_cancel_ok.
	(gdbtk_start_timer): Set gdbtk_timer_going.
	(gdbtk_stop_timer): Clear gdbtk_timer_going.
	(gdbtk_wait): Call x_event.
	(gdbtk_init): Call ide_create_win_grab_command if
	__CYGIN32__.
	(gdb_clear_file): Clear stop_pc.


Tue Feb 10 17:50:37 1998  Keith Seitz  <keiths@onions.cygnus.com>

	* gdbtk.c (gdbtk_modify_tracepoint): Define new tracepoint modification hook.
	(gdbtk_print_frame_info): Define this hook so that current_source_symtab
	is set properly.
	(gdb_actions_command): Use free_actions () from tracepoint.c/h.
	
Mon Jan 26 11:37:55 1998  Keith Seitz  <keiths@onions.cygnus.com>

	* gdbtk.c (gdb_actions_command): Make note of next action
	before freeing all references to it.

Sat Jan 24 23:52:08 1998  Martin M. Hunt  <hunt@cygnus.com>

	* gdbtk.c: Merge from Foundry branch.
	(TclDebug): New debugging function.
	(gdb_loc): For frames, find address of calling function
	instead of whatever is on the stack (usually the next
	instruction).
	(gdb_listfiles): Takes an optional pathname argument and 
	returns an alphabetized list of basenames of files in the
	path.

Wed Jan 22  10:37:02 1998  Keith Seitz  <keiths@onions.cygnus.com>

	* symfile.c: Define two new hooks for symbol reading: 
	"pre_add_symbol_hook" and "post_add_symbol_hook". These hooks 
	are called before we begin reading symbols, and after we finish.
	(generic_load): Use new symbol reading hooks and get rid of 
	compiler warning.

	* gdbtk.c (gdbtk_init): Add hooks for pre- and post-symbol reading.
	(gdbtk_pre_add_symbol): New function: the pre-add-symbol hook.
	(gdbtk_post_add_symbol): New function: the post-add-symbol hook.
	(find_file_in_dir): New function. Moved the guts of gdb_find_file_command
	into here to allow its use by others.
	(gdb_loc): Use find_file_in_dir to return the real path to the file
	(or "N/A" if we can't find it).

	* configure.in (TIX_LIB_EXT): Define new variable for those special cases
	when TCL_SHLIB_SUFFIX is not enough to specify the dependency.

	* configure: Regenerate.

Fri Jan 23 07:47:06 1998  Fred Fish  <fnf@cygnus.com>

	* Makefile.in (uninstall): Remove installed gdbtcl dir, if one
	was installed.

Thu Jan 15 12:42:28 1998  Keith Seitz  <keiths@onions.cygnus.com>

	* gdbtk.c (gdb_immediate_command): New function which does not buffer any
	output. (Contrast to gdb_cmd.)
	(gdbtk_init): Install "gdb_immediate" command into interpreter.

Wed Jan 14 16:38:44 1998  Keith Seitz  <keiths@pizza.cygnus.com>

	* configure.in (--enable-gdbtk): If tcl was built with --enable-shared,
	use TCL_SHLIB_SUFFIX to specify the suffix of the library file so that
	we don't expect to see "libfoo.a" instead of "libfoo.{so,sl, etc}".

	* configure: Regenerate.
	
Wed Dec 31 16:50:26 1998  Keith Seitz  (keiths@onions.cygnus.com)
 
        * gdbtk.c (gdb_actions_command): extract and save step count
        from "while-stepping" command

Tue Dec 16 21:16:42 1997  Ian Lance Taylor  <ian@cygnus.com>

	* Makefile.in (LIBGUI): New variable.
	(GUI_CFLAGS_X): New variable.
	(IDE_CFLAGS): Add $(GUI_CFLAGS_X).
	* configure.in: Add $(LIBGUI) to TCL_LIBS and CONFIG_DEPS.
	* configure: Rebuild.

Wed Dec  10 13:16:45 1997  Keith Seitz  <keiths@onions.cygnus.com>

	* gdbtk.c (gdb_get_tracepoint_info): Use info in struct 
	symtab_and_line (not struct tracepoint) so that we get the
	real line info for an address. Arrange data more like
	gdb_get_breakpoint_info.
	(tracepoint_notify): Use info in struct symtab_and_line again.
	(gdbtk_init): Add command "gdb_get_tracepoint_list" into
	interpreter.
	(gdb_get_tracepoint_list): New function that aids the source
	window in displaying tracepoints when the file changes.
	
Fri Dec  5 10:31:23 1997  Keith Seitz  <keiths@pizza.cygnus.com>

	* gdbtk.c (gdbtk_init): Add gdb_find_file into interpreter.
	(gdb_find_file_command): New function which searches source path
	to find the real full filename of a file.

Mon Dec  1 10:19:44 1997  Keith Seitz  <keiths@onions.cygnus.com>

	* gdbtk.c: Move include of "guitcl.h" back out of IDE ifdef.
	(gdbtk_init): Move ide_initialize_paths out of IDE ifdef.

	* configure.in (TCL_LIBS, CONFIG_DEPS): Add IDE libraries for all
	builds.
	(CONFIG_OBS): Remove tracepoint.o, which should always be included.

	* configure: regenerate

	* Makefile.in (install-only): ALWAYS install the new gdbtk
	(REMOTE_OBS): add tracepoint.o
	
Thu Nov 27 09:07:18 1997  Michael Meissner  <meissner@cygnus.com>

	* configure.in ({TCL_LIBS,CONFIG_DEPS}): Don't add IDE libraries
	if not --enable-ide.
	(CONFIG_OBS): Add tracepoint.o to list if --enable-gdbtk.
	* configure: Regenerate.

	* gdbtk.c (gdb_get_breakpoint_info): Add missing filename
	argument.
	(toplevel): Move include of guitcl.h into #ifdef IDE region.
	(gdbtk_init): Move ide_initialize_paths call into #ifdef IDE
	section.

	* Makefile.in (gdbtk.o): Update dependencies.

Wed Nov 26 15:02:43 1997  Keith Seitz  <keiths@onions.cygnus.com>

    	* gdbtk.c (gdb_loc): symtab_to_filename can return NULL.
	(breakpoint_notify): Ditto.
	(gdb_get_breakpoint_info): Ditto.

Wed Nov 26 11:33:09 1997  Keith Seitz  <keiths@onions.cygnus.com>

	Merge in code from Foundry branch:
	
	* Makefile.in (install-only): install the new gdbtk, not the old

	* gdbtk.c (gdbtk_call_command): also run idle hooks for class_trace
	commands
	(gdbtk_init): Add new commands "gdb_get_locals", "gdb_get_args",
	"gdb_get_function", "gdb_get_line", "gdb_get_file",
	"gdb_tracepoint_exists", "gdb_get_tracepoint_info", "gdb_actions",
	and "gdb_prompt".
	(gdb_get_vars_command): New function.
	(gdb_get_line_command): New.
	(gdb_get_file_command): New.
	(gdb_get_function_command): New.
	(gdb_get_tracepoint_info): New.
	(gdbtk_create_tracepoint): New.
	(gdbtk_delete_tracepoint): New.
	(tracepoint_notify): New.
	(tracepoint_exists): New.
	(gdb_actions_command): New.
	(gdb_tracepoint_exists_command): New.
	(gdb_prompt_command): New.

Thu Nov 13 18:15:54 1997  Ian Lance Taylor  <ian@cygnus.com>

	* gdbtk.c: Move include of gdbcore.h to top of file.
	(close_bfds): New static function if _WIN32.
	(gdbtk_readline): Call close_bfds.
	(call_wrapper, tk_command_loop): Likewise.
	(gdb_clear_file): New static function.
	(gdbtk_init): Create gdb_clear_file Tcl command.

Wed Nov 12 14:58:39 1997  Jeff Holcomb  <jeffh@cygnus.com>

	* gdbtk.c: gdbtk_load_hash and ui_load_progress_hook return an
	int result.
	(gdbtk_load_hash): download hash routine returns an int result.

Mon Nov 10 15:11:51 1997  Ian Lance Taylor  <ian@cygnus.com>

	* gdbtk.c (gdbtk_init): Call ide_create_shell_execute_command if
	__CYGWIN32__.
	* configure.in: Add -lshell32 to WIN32LIBS on cygwin32.
	* configure: Rebuild.

Sun Nov  9 16:25:34 1997  Tom Tromey  <tromey@cygnus.com>

	* gdbtk.c (gdbtk_init): Run ide_create_help_command.

Tue Oct 28 17:31:47 1997  Martin M. Hunt  <hunt@cygnus.com>

	* gdbtk.c (gdbtk_init): Call ide_create_winprint_command.

Thu Oct 23 15:53:37 1997  Ian Lance Taylor  <ian@cygnus.com>

	* configure.in: Add -lgdi32 to WIN32LIBS when linking gdbtk on
	cygwin32.
	* configure: Rebuild.

Wed Oct 22 21:32:54 1997  Martin M. Hunt  <hunt@cygnus.com>

	* gdbtk.c (gdbtk_init): Create sizebox command on Windows.

Thu Oct  9 14:33:21 1997  Ian Lance Taylor  <ian@cygnus.com>

	* gdbtk.c (gdbtk_init): Remove assertion argument from call to
	ide_create_window_register_command.

Wed Oct  1 11:09:52 1997  Tom Tromey  <tromey@cygnus.com>

	* gdbtk.c (gdbtk_init): Pass name of restore interface to
	ide_create_window_register_command.

Fri Sep 26 21:08:22 1997  Keith Seitz  <keiths@pizza.cygnus.com>

	* gdbtk.c (gdbtk_init): Initialize ui_load_progress_hook.

Thu Sep 25 03:05:00 1997  Martin M. Hunt  <hunt@cygnus.com>

	* gdbtk.c (gdb_load_info): New function.  Returns a list
	of section names and sizes for an executable.
	(gdbtk_load_hash): Stub function to call tcl function
	download_hash.

Tue Sep 23 01:29:00 1997  Martin M. Hunt  <hunt@cygnus.com>	

	* gdbtk.c (gdb_get_mem): Fix compiler warning.

Sun Sep 21 00:15:00 1997  Martin M. Hunt  <hunt@cygnus.com>

	* gdbtk.c (gdb_get_mem): Fix problem with ASCII dump.

Tue Sep 16 18:07:17 1997  Martin M. Hunt  <hunt@cygnus.com>	

	* gdbtk.c (gdb_get_mem): New function.  Returns
	a formatted memory dump with optional ASCII dump.

Mon Sep  8 12:48:50 1997  Ian Lance Taylor  <ian@cygnus.com>

	* gdbtk.c: Include ilutk.h if IDE.
	(gdb_confirm_quit, gdb_force_quit): New static functions.
	(gdbtk_init): Add Tcl commands gdb_confirm_quit and
	gdb_force_quit.

Mon Sep  8 03:05:33 1997  Martin M. Hunt  <hunt@cygnus.com>

	* gdbtk.c (gdb_get_breakpoint_info): Now returns the
	function a breakpoint is in.

Fri Sep  5 20:23:58 1997  Ian Lance Taylor  <ian@cygnus.com>

	* gdbtk.c (gdbtk_init): Call ide_create_exit_command.

Wed Sep  3 19:39:15 1997  Ian Lance Taylor  <ian@cygnus.com>

	* gdbtk.c: Include guitcl.h.
	(gdbtk_init): Always call ide_initialize_paths.  Set the Tcl
	variable IDE to 1 when using the IDE.  Always try using auto path
	to find main.tcl.
	* Makefile.in (IDE_CFLAGS_X): Always include libide.
	(LIBIDE): New variable.
	(IDE_X): Omit -lide.
	(IDE_DEPS): Omit libide.
	* configure.in: Add LIBIDE to TCL_LIBS and CONFIG_DEPS.
	* configure: Rebuild.

Mon Aug 25 02:28:55 1997  Keith Seitz  <keiths@pizza.cygnus.com>

	* gdbtk.c: (gdb_target_has_inferior) check if inferior_pid is non-zero
	before assuming that the inferior is running.

Mon Aug 25 01:06:48 1997  Ian Lance Taylor  <ian@cygnus.com>

	* gdbtk.c (gdbtk_start_timer): Pass third argument to setitimer.
	(gdbtk_stop_timer): Likewise.

Mon Aug 25 00:23:08 1997  Keith Seitz  <keiths@pizza.cygnus.com>

	* gdbtk.c: (gdbtk_init) create new command "gdb_target_has_execution"
	(gdb_target_has_execution_command) new function

Sun Aug 24 20:27:22 1997  Ian Lance Taylor  <ian@cygnus.com>

	* gdbtk.c (gdb_loc): If there are no symbols, just bail
	immediately.
	(tk_command_loop): Print errors encountered while running
	gdbtk_tcl_preloop.

Sun Aug 24 13:44:03 1997  Tom Tromey  <tromey@cygnus.com>

	* gdbtk.c (gdbtk_init): Run ide_create_build_command.

Sat Aug 23 21:53:39 1997  Ian Lance Taylor  <ian@cygnus.com>

	* gdbtk.c: If CYGWIN32, include <sys/time.h>.
	(x_fd): Don't define if WINNT.
	(gdbtk_start_timer, gdbtk_stop_timer): New static functions if
	CYGWIN32.
	(gdbtk_wait): Don't set up signal handling if WINNT.  If CYGWIN32,
	call gdbtk_start_timer and gdbtk_stop_timer.
	(gdbtk_init): Don't set up signal handling or make x_fd
	asynchronous if CYGWIN32.

Fri Aug 22 15:23:15 1997  Ian Lance Taylor  <ian@cygnus.com>

	* gdbtk.c (error_string_ptr): New static variable.
	(gdbtk_fputs): If result_ptr is NULL, and error_string_ptr is not
	NULL, and we're outputting to stderr, append string to
	error_string_ptr rather than calling gdbtk_tcl_fputs.
	(call_wrapper): Set up error_string_ptr.  Put both error string
	and normal string in Tcl result.

	* gdbtk.c (gdbtk_init): Don't call ide_run_server_init until after
	gdb has initialized.

Thu Aug 21 19:14:38 1997  Ian Lance Taylor  <ian@cygnus.com>

	* gdbtk.c: If _WIN32, include winuser.h.
	(gdbtk_init): If _WIN32, use MessageBox to display an error
	evaluating main.tcl.

Thu Aug 21 00:48:00 1997  Martin M. Hunt  <hunt@pern.cygnus.com>

	* gdbtk.c (gdbtk_init): Add call to ide_run_server_init().
	(gdb_cmd): For the load command, don't buffer the I/O.

Wed Aug 20 11:41:22 1997  Martin M. Hunt  <hunt@cygnus.com>

	* gdbtk.c (gdbtk_query): Chaneg free() call to Tcl_Free().
 	
Tue Aug 19 17:09:19 1997  Ian Lance Taylor  <ian@cygnus.com>

	* Makefile.in (TCL_DEPS, TK_DEPS): New variables.
	(ITCL_DEPS, TIX_DEPS): New variables.
	(IDE_DEPS): New variable.
	(CDEPS): Include @CONFIG_DEPS@.
	* configure.in: Set and substitute CONFIG_DEPS and TIX_DEPS.
	* configure: Rebuild.

Sun Aug 17 00:42:11 1997  Martin M. Hunt  <hunt@cygnus.com>

	* gdbtk.c (gdb_listfuncs): New function that returns
	a list of all the functions in a source file.

Tue Aug 12 16:35:21 1997  Ian Lance Taylor  <ian@cygnus.com>

	* Makefile.in (install-only): Install tclIndex if ENABLE_IDE.

Mon Aug 11 10:43:04 1997  Tom Tromey  <tromey@cygnus.com>

	* gdbtk.c (gdbtk_init): Use ide_event_init_from_environment.

Fri Aug  8 15:59:24 1997  Ian Lance Taylor  <ian@cygnus.com>

	* gdbtk.c (gdbtk_init): Change gdbtk_lib_tmp and gdbtk_file to be
	dynamically allocated, rather than fixed size.  Pass "gdbtcl" to
	ide_initialize_paths to match installed directory name.  If IDE,
	use auto_path to search for main.tcl.
	* Makefile.in (install-only): If ENABLE_IDE, install from gdbtcl2
	rather than gdbtcl.

	* gdbtk.c (gdbtk_cleanup): New static function.
	(gdbtk_init): Add gdbtk_cleanup as a final cleanup.  Uncomment
	call to ide_initialize_paths.  If we can't initialize the event
	system, set GDBTK_IDE to 0 in the Tcl interpreter.  Create the
	ide_window_register and the ide_window commands.  Initialize tk,
	itcl, and tix after initializing the IDE.

	* configure.in (tixdir): Update for cygwin32 case for Tcl 8.0.
	* configure: Rebuild.

Fri Aug  8 00:13:32 1997  Martin M. Hunt  <hunt@cygnus.com>

	* gdbtk.c (breakpoint_notify): Change buffer size from 100
	to 256 to avoid memory corruption with very long pathnames.

Thu Aug  7 14:08:23 1997  Martin M. Hunt  <hunt@cygnus.com>

	* configure.in: Change required Tix version to 4.1.8.0 .
	* configure: Rebuilt.

Fri Aug  1 15:21:44 1997  Ian Lance Taylor  <ian@cygnus.com>

	* gdbtk.c (Tcl_Alloc): Don't provide our own version of this if
	_WIN32.
	(Tcl_Realloc, Tcl_Free): Likewise.
	* configure.in: Check for cygwin32 environment.  Define and
	substitute WIN32LIBS and WIN32LDAPP.  Always set configdir to
	unix; setting it to win was for an old Tcl/Tk configuration
	scheme.
	* aclocal.m4 (CY_AC_LOAD_TKCONFIG): Substitute TK_BUILD_INCLUDES.
	* Makefile.in (TK_CFLAGS): Add @TK_BUILD_INCLUDES@.
	(WIN32LDAPP, WIN32LIBS): Define.
	(CLIBS): Add $(WIN32LIBS).
	(gdb): Use $(WIN32LDAPP).
	* configure: Rebuild.

Tue Jul 22 19:45:37 1997  Martin M. Hunt  <hunt@cygnus.com>

	* configure.in, aclocal.m4: Another fix to find the
	correct Tix library name.

	* configure: Rebuilt.
	
Mon Jul 21 22:24:07 1997  Martin M. Hunt  <hunt@cygnus.com>

	* aclocal.m4: Search for the correct tix library. 

Thu Jul 10 00:02:41 1997  Martin M. Hunt  <hunt@cygnus.com>

	* Makefile.in, configure.in, aclocal.m4: Add Itcl, Tix, and 
	IDE configuration information.

	* gdbtk.c (breakpoint_notify): Send address, linenumber and 
	filename when a breakpoint is set.  Avoids call to bp_info.
 	(gdbtk_init): Call Tcl_FindExecutable(). Add code to handle 
	Itcl, Tix and IDE initialization.

	* configure: Regenerated.

Fri Jun 13 10:28:09 1997  Fred Fish  <fnf@cygnus.com>

	* gdbtk.c (gdbtk_init): Make truth value test explicit.
	Remove unused static variable "Gdbtk_Library".

Sat Jun  7 02:34:19 1997  Peter Schauer  (pes@regent.e-technik.tu-muenchen.de)

	* gdbtk.c (gdb_get_breakpoint_info):  Add string for new
	enumeration del_at_next_stop to bpdisp array.

Tue Jun  3 15:46:51 1997  Tom Tromey  <tromey@cygnus.com>

	* Makefile.in (LIB_RUNTIME_DIR): New variable.

Wed May  7 19:10:19 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* gdbtk.c (wrapped_call): New function - make actual call to tk
 	worker function.
	(call_wrapper): Rewrite to use top.c:catch_errors.

	* gdbtk.c (gdb_stop): If No target_stop set quit flag and hope for
 	best.

Mon Apr 21 14:00:08 1997  Doug Evans  <dje@canuck.cygnus.com>

	* gdbtk.c (gdb_disassemble): Store endian-ness in `di'.

Wed Apr 16 12:33:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>

	* Makefile.in (install-only): Make list of gdbtcl files to install
 	explicit - was picking up files such as ChangeLog etc.
	(install-only): Don't blindly create the directory.

Tue Apr  1 15:04:21 1997  Jason Molenda  (crash@godzilla.cygnus.co.jp)

	* configure.in (gdbtcl): Create soft-link for gdbtcl/ directory
 	instead of gdbtk.tcl.

Fri Mar 28 17:04:02 1997  Jason Molenda  (crash@godzilla.cygnus.co.jp)

	* Makefile.in (gdbtk.o): look for GDBTK_LIBRARY in $(datadir) by
	default, not $(srcdir).

Wed Mar 19 15:16:17 1997  Martin M. Hunt  <hunt@onions.cygnus.com>

	* Makefile.in:  Install gdbtcl dir instead of gdbtk.tcl.
	
	* gdbtk.c: Added some ifdefs for Windows.  Changed GDBTK_FILENAME
	to GDBTK_LIBRARY, which is now a path to search.
	(gdb_path_conv): New function.  Convert Cygwin32 pathname to
	DOS-style pathname.

	* {aclocal.m4,configure.in}: Changes for Windows builds.

	* configure: Rebuilt.

Fri Mar 14 10:01:29 1997  Tom Tromey  <tromey@cygnus.com>

	* configure: Regenerated.
	* configure.in (LIBS): Re-reverse order of TCL_LIBS and TK_LIBS.

Wed Mar 12 14:29:52 1997  Tom Tromey  <tromey@cygnus.com>

	* gdbtk.c (x_event): Use Tcl_DoOneEvent, TCL_DONT_WAIT,
	TCL_ALL_EVENTS.

	* configure: Regenerated.
	* configure.in (ENABLE_GDBTK): Put TCL_LIBS after TK_LIBS in
	LIBS.

Mon Feb 10 13:50:53 1997  Stu Grossman  (grossman@critters.cygnus.com)

	* gdbtk.c (call_wrapper):  Clear running_now if an error occurs.

Wed Dec 11 18:51:35 1996  Mark Alexander  <marka@cygnus.com>

	* gdbtk.c (gdb_loc): Correct truncation of PC on 64-bit MIPS.

Tue Nov 19 09:26:14 1996  Tom Tromey  <tromey@cygnus.com>

	* gdbtk.c (gdbtk_readline): Fix memory leak.

Mon Nov 18 23:43:05 1996  Tom Tromey  <tromey@cygnus.com>

	Fixes for Tcl 7.6 / Tk 4.2:
	* gdbtk.tcl (apply_filespec): Use tk_getOpenFile.
	Remove old fileselect code.
	* gdbtk.c (Tcl_Alloc): Rename from Tcl_Malloc.

Fri Sep 27 10:25:30 1996  Fred Fish  <fnf@cygnus.com>

	* gdbtk.tcl (create_copyright_window): Increase timeout from
	15 seconds to 30 seconds.

Wed Sep  4 17:28:40 1996  Stu Grossman  (grossman@critters.cygnus.com)

	* configure configure.in:  Add host *windows* to list of hosts
	that don't support GDBtk.

Fri Aug 23 00:44:57 1996  Fred Fish  <fnf@cygnus.com>

	* gdbtk.c (gdbtk_init): Check for a DISPLAY env variable and
	gracefully degrade to using command line interface if none is
	found.

Fri Aug  9 12:32:53 1996  Tom Tromey  <tromey@creche.cygnus.com>

	* Makefile.in (LIB_INSTALL_DIR): New macro.
	(TCL): Include @TCL_LD_SEARCH_FLAGS@.

Thu Aug  1 20:35:01 1996  Tom Tromey  <tromey@creche.cygnus.com>

	* gdbtk.c (mainWindow): Deleted.
	(cleanup_init): Don't destroy main window.
	(gdbtk_init): Main window now created by Tk_Init.

	* configure.in: Most X checks now handled automatically by Tk.
	Use new macros to find Tcl/Tk.
	* aclocal.m4: New version for new Tcl/Tk; from Don Libes.
	* config.in, configure: Regenerated.

	* Makefile.in (TCL, TCL_CFLAGS, TK, TK_CFLAGS, X11_CFLAGS,
	X11_LDFLAGS, X11_LIBS): Changed for new Tcl and Tk.

Thu Aug  1 16:12:05 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)

	* Makefile.in (gdbtk.tcl): put in $(datadir), not $(libdir).

Fri Jul 26 14:07:37 1996  Ian Lance Taylor  <ian@cygnus.com>

	* gdbtk.c (gdb_disassemble): Initialize di.flavour.

Thu Jul 25 19:41:31 1996  Fred Fish  <fnf@cygnus.com>

	* gdbtk.c (null_routine): Ditto.
	(gdbtk_flush): Ditto.
 	(gdbtk_fputs): Ditto.
 	(gdbtk_query): Ditto.
	(gdbtk_readline): Ditto.
 	(gdbtk_readline_end): Ditto.
 	(gdb_get_breakpoint_list): Ditto.
	(gdb_get_breakpoint_info): Ditto.
 	(breakpoint_notify): Ditto.
 	(gdbtk_create_breakpoint): Ditto.
	(gdbtk_delete_breakpoint): Ditto.
 	(gdbtk_modify_breakpoint): Ditto.
 	(gdb_loc): Ditto.
 	(gdb_eval): Ditto.
	(gdb_sourcelines): Ditto.
 	(map_arg_registers): Ditto.
 	(get_register_name): Ditto.
 	(gdb_regnames): Ditto.
	(get_register): Ditto.
 	(gdb_fetch_registers): Ditto.
 	(register_changed_p): Ditto.
	(gdb_changed_register_list): Ditto.
 	(gdb_cmd): Ditto.
 	(call_wrapper): Ditto.
 	(gdb_listfiles): Ditto.
	(gdb_stop): Ditto.
 	(gdbtk_dis_asm_read_memory): Ditto.
 	(compare_lines): Ditto.
 	(gdb_disassemble): Ditto.
	(tk_command): Ditto.
 	(cleanup_init): Ditto.
 	(gdbtk_interactive): Ditto.
 	(x_event): Ditto.
 	(gdbtk_wait): Ditto.
	(gdbtk_call_command): Ditto.
 	(tk_command_loop): Ditto.
 	(gdbtk_init): Ditto.

	* gdbtk.c (register_changed_p): Remove unused local variable "buf".

Sat Jul 20 17:46:40 1996  Fred Fish  <fnf@cygnus.com>

	* gdbtk.tcl (files_command): Reorder the binding tags for
	the listbox widget to avoid referencing the listbox after
	the containing widget has been destroyed by the action of
	a previous binding.

Sat Jul 20 10:09:28 1996  Fred Fish  <fnf@cygnus.com>

	* gdbtk.tcl (delete_expr): Unset corresponding element of
	expr_update_list when destroying an expression.
	(create_expr_window): Initialize expr_num, delete_expr_num,
	and expr_update_list here when each new expression window
	is created, rather than once at startup.

Mon Jul 15 16:44:05 1996  Stu Grossman  (grossman@critters.cygnus.com)

	* gdbtk.c (gdb_disassemble):  Setup di.mach from
	tm_print_insn_info.mach, and set endian from TARGET_BYTE_ORDER.

Fri Jun 21 11:04:47 1996  Fred Fish  <fnf@cygnus.com>

	* gdbtk.tcl (create_register_windows): Include missing '$'s.
	Add global declarations for various reg_format_* variables.
	* gdbtk.tcl (populate_register_window): Make initial window one
	line taller to account for new column header line.

Fri Jun 21 09:46:47 1996  Fred Fish  <fnf@cygnus.com>

	* gdbtk.c (get_register): Support for printing raw formats.
	* gdbtk.tcl: Add hint for using debug_interface.
	(center_window, add_breakpoint_frame, delete_breakpoint_frame):
	Enclose arg in braces for consistency.
	(create_registers_window, populate_reg_window, update_registers):
	Major rewrite to support displaying multiple formats in the register
 	window.
	(init_reg_info): New function.
	(recompute_reg_display_list):  Reset reg_display_list, start
	register display lines at line 2.

Thu Jun 20 08:18:59 1996  Fred Fish  <fnf@cygnus.com>

	* gdbtk.tcl (gdbtk_tcl_readline_begin): Handle backspace to
	avoid backing up over prompt.  At every input, make sure insert
	point is at least after command start, handle control-u to delete
	current input line.
	(tclsh): Handle backspace to avoid backing up over prompt.  Handle
	control-u to delete current input line.

Wed Jun 19 17:23:38 1996  Geoffrey Noer  <noer@cygnus.com>

	* configure.in: disable gdbtk for *cygwin32* hosted compiles
	* configure: regenerated with autoconf 2.8

Sun May 19 16:49:37 1996  Fred Fish  <fnf@cygnus.com>

	* gdbtk.c (gdbtk_readline_begin, gdbtk_readline, gdbtk_readline_end):
	New functions.
	(tk_command_loop): Set instream to NULL to enable Tk user interaction.
	(gdbtk_init): Set readline_begin_hook, readline_hook,
	and readline_end_hook.
	* gdbtk.tcl (gdbtk_tcl_readline_begin, gdbtk_tcl_readline,
	gdbtk_tcl_readline_end): New functions.
	(tclsh): Pack scroll bar on right side of window, not left.

Fri May 17 13:54:34 1996  Fred Fish  <fnf@cygnus.com>

	* gdbtk.tcl (create_command_window): Change a misspelled "get"
	to the intended "cget".
	(delete_line): Fix so it deletes the current line at the
	insertion cursor.

Thu May 16 19:20:29 1996  Fred Fish  <fnf@cygnus.com>

	* gdbtk.tcl (gdb_prompt): Set this early on.
	(create_command_window): Use gdb_prompt rather than "(gdb) ".
	(gdbtk_tcl_preloop): Proc executed just prior to Tk main loop.
	(tclsh): If an evaluation window already exists, just bring it
	to the front instead of trying to create another.
	* gdbtk.c (tk_command_loop): New function.
	(gdbtk_init): Call tk_command_loop rather than Tk_MainLoop.

Thu May 16 16:16:35 1996  Fred Fish  <fnf@cygnus.com>

	* gdbtk.tcl (evaluate_tcl_command, tclsh):  New functions that
	implement a tcl evaluation window for gdbtk maintainers to use.

Thu May 16 11:42:58 1996  Tom Tromey  <tromey@creche.cygnus.com>

	* gdbtk.tcl (files_command): Correctly insert list of files into
	listbox widget.

	* gdbtk.tcl (files_command): listbox command no longer accepts
	-geometry.

Wed May 15 16:04:09 1996  Stan Shebs  <shebs@andros.cygnus.com>

	* gdbtk.tcl (create_command_window): If command window's buffer
	is disabled, don't execute any of the key bindings.

Mon May 13 13:43:25 1996  Fred Fish  <fnf@cygnus.com>

	* gdbtk.c (tk_command): Catch case where no argument is given
	since this will cause the tcl interpreter to dump core.

Wed May  8 20:33:24 1996  Fred Fish  <fnf@cygnus.com>

	* gdbtk.c: Fix a couple of misspellings.

Thu May  2 19:17:49 1996  Stan Shebs  <shebs@andros.cygnus.com>

	* gdbtk.tcl (debug_interface): New global, use to aid debugging.
	(insert_breakpoint_tag, delete_breakpoint_tag): Fix range.
	(file_popup_menu): Delete, never used.
	(listing_window_popup): Rename from listing_window_button_1,
	remove breakpoint toggling code.
	(toggle_breakpoint): New procedure.
	(create_file_win): Bind popup menu to button 2, toggle breakpoints
 	with button 1 in breakpoint area, add display of tagged areas if
 	debugging on.

Fri Apr  5 13:44:40 1996  Stan Shebs  <shebs@andros.cygnus.com>

	* gdbtk.c (running_now): New global variable.
	(gdb_cmd): Test it before executing any command.
	(gdbtk_call_command): Set it when inferior is running.
	* gdbtk.tcl (gdbtk_tcl_busy, gdbtk_tcl_idle): Enable and
	disable interaction with command window's text appropriately.

Fri Apr  5 13:25:42 1996  Michael Meissner  <meissner@tiktok.cygnus.com>

	* gdbtk.c (SIOCSPGRP, linux): If on Linux, undef SIOCSPGRP, since
	some versions of the kernel don't support it.

Tue Feb  6 16:31:25 1996  Tom Tromey  <tromey@creche.cygnus.com>

	* gdbtk.tcl (create_file_win): Eliminate text widget B1 binding so
	double-clicking will work again.
	(create_asm_win): Put "break" at end of all B1 bindings.
	(create_file_win): Lower "sel" tag, don't raise it.
	(ensure_line_visible): New proc.
	(update_listing, update_assembly): Use it.
	(create_copyright_window): Destroy window on Leave event.
	(create_command_window): Put "break" at end of all B2 bindings.

Wed Jan 24 15:28:41 1996  Tom Tromey  <tromey@creche.cygnus.com>

	* gdbtk.tcl, gdbtk.c: Updated copyrights.

	* configure.in: Look for -ldl or -ldld when using Tcl 7.5 or
	greater.
	* configure: Rebuilt.

Tue Jan 23 09:00:48 1996  Doug Evans  <dje@charmed.cygnus.com>

	* gdbtk.c (gdb_disassemble): Pass fprintf_unfiltered to
 	INIT_DISASSEMBLE_INFO.

Mon Jan 15 09:58:41 1996  Tom Tromey  <tromey@creche.cygnus.com>

	* gdbtk.tcl (create_expr_window): Many changes to update GUI.
	(add_expr): Changes from create_expr_window.
	(create_command_window): Set focus.
	(delete_expr): Rewrote.
	(expr_update_button): New proc.
	(add_expr): Put bindings on FocusIn, FocusOut.
	Don't allow .file_popup to be torn off.

Fri Jan 12 09:36:17 1996  Tom Tromey  <tromey@creche.cygnus.com>

	* gdbtk.tcl (gdbtk_tcl_query): Swap Yes and No buttons.
	(update_listing): Use lassign.  Use "see" to scroll.  Don't need
	screen_top, screen_bot, screen_height.
	(update_assembly): Use "see" to scroll.
	(textscrollproc): Removed.
	(create_file_win): Don't use textscrollproc.
	(asmscrollproc): Removed.
	(create_asm_window): Don't use asmscrollproc.
	(create_asm_win): Ditto.
	(screen_height, screen_top, screen_bot): Removed.
	(run_editor): New proc.
	(build_framework): Use it.
	(create_file_win, create_source_window): Don't use textscrollproc.
	(create_breakpoints_window): Set -xscrollcommand on canvas.
	(not_implemented_yet): Default button is 0.
	(delete_char): Don't use tk_textBackspace.
	(create_command_window): Allow Tk bindings to fire after deleting
	character.
	(create_command_window): Make Delete delete left, not right.

Thu Jan 11 10:08:14 1996  Tom Tromey  <tromey@creche.cygnus.com>

	* gdbtk.tcl (FSBox): Don't use tk_listboxSingleSelect.

	Changes in sync with expect:
	* configure.in (ENABLE_GDBTK): Use CY_AC_PATH_TCL and
	CY_AC_PATH_TK.
	* aclocal.m4: Replaced with version from expect.
	* configure: Regenerated.

Wed Jan 10 09:07:22 1996  Tom Tromey  <tromey@creche.cygnus.com>

	* gdbtk.tcl (gdbtk_tcl_fputs, gdbtk_tcl_fputs_error,
	gdbtk_tcl_flush): Use "see", not "yview".
	(gdbtk_tcl_query): Use questhead bitmap.
	various: Always wrap condition of 'if' in {...}.
	(add_breakpoint_frame): Set -value on radiobuttons.
	(lassign): New proc.
	(add_breakpoint_frame): Use lassign, not series of assignments.
	(decr): Made faster.
	(interactive_cmd): Use "see", not "yview".
	(not_implemented_yet): Use warning bitmap.
	(update_expr): Don't allow $expr to be evalled by Tcl.
	(create_expr_window): Don't use "focus".
	(delete_char, delete_line): Define globally.
	(delete_line, delete_char, create_command_window, update_autocmd,
	build_framework, create_asm_win, create_file_win): Use "see", not
	"yview".
	(create_copyright_window, center_window, bind_widget_after_class):
	New procs.
	(FSBox,create_command_window, create_autocmd_window): Binding
	changes for Tk4.
	(textscrollproc): Define globally.
	(build_framework): tk_menuBar no longer needed.  Keys Prior, Next,
	Home, End, Up, and Down are all defined by Tk.
	(apply_filespec): Use error bitmap in dialog.
	(files_command): Don't use tk_listboxSingleSelect.
	(files_command): Don't use "uniq" to remove duplicates from a
	list.
	(update_assembly): Use lassign.
	(create_asm_win): Removed redundant bindings.
	(listing_window_button_1, file_popup_menu): Use tk_popup.
	(ButtonRelease-1 binding): Just remove tag from window; rest
	handled by Tk.

	* gdbtk.c (gdbtk_query): Use Tcl_Merge to provide quoting.
	(call_wrapper): Use Tcl_Eval, not Tcl_VarEval.
	(gdbtk_call_command): Ditto.

Thu Jan  4 16:04:54 1996  Stu Grossman  (grossman@cygnus.com)

	* configure configure.in:  Make --enable-gdbtk be the default.

Thu Dec 28 15:10:49 1995  Stan Shebs  <shebs@andros.cygnus.com>

	* README.GDBTK: Polish introductory paragraph.

Mon Oct 16 11:27:06 1995  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.c (gdb_disassemble):  Use fprintf_unfiltered instead of
	fprintf_filtered.

Tue Oct 10 15:26:39 1995  Fred Fish  <fnf@cygnus.com>

	* README.GDBTK: Updated for version 4.15.
	
Sat Aug 19 17:20:22 1995  Michael Tiemann  <tiemann@axon.cygnus.com>

	* gdbtk.tcl: ENABLE comes back as "1" or "0", not "enable" or
	"disable".
	Also, wire up the breakpoint window so that it can be demo'd.

Tue Aug  1 11:44:53 1995  J.T. Conklin  <jtc@rtl.cygnus.com>

	* gdbtk.c: Include "gdb_string.h" instead of <string.h>.

Tue Jun 20 10:19:40 1995  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.c:  Add functions Tcl_Malloc, Tcl_Realloc, and Tcl_Free.

	* gdbtk.tcl (add_breakpoint_frame):  Add more fields.
	* (create_file_win create_asm_win build_framework):  Create null
	bindings for meta keys to keep window from dropping down to
	insertion point when meta is pressed by itself.  New bindings:
	   Up/Down - Scroll up/down one line at a time
	   Next/Prior - Scroll up/down one page at a time
	   Home/End - Warp to current pc/end of file
	* (build_framework):  Turn on breakpoint menu.
	* (create_command_window):  Implement tab completion.  Add binding
	for ^C to stop target.

Fri May 19 06:15:40 1995  Jim Kingdon  <kingdon@deneb.cygnus.com>

	* gdbtk.c: Conditionalize use of stdarg rather than varargs on
 	ANSI_PROTOTYPES not __STDC__; it must match the definition of
 	PARAMS.

Thu May 18 15:58:46 1995  J.T. Conklin  <jtc@rtl.cygnus.com>

	* gdbtk.c (gdbtk_query): Use stdarg.h macros when compiling with
 	an ANSI compiler.

Sat Apr 15 13:52:24 1995  Stan Shebs  <shebs@andros.cygnus.com>

	* gdbtk.c (gdb_disassemble): Read from inferior if connected
	to a VxWorks target.

Fri Apr 14 10:18:20 1995  Stu Grossman  (grossman@cygnus.com)

	* README.GDBTK:  New file.  Contains the obvious.

Tue Apr 11 11:07:12 1995  Michael Meissner  <meissner@tiktok.cygnus.com>

	* gdbtk.c (gdbtk_init): If SIOCSPGRP is not available, but
	F_SETOWN is, use that.

Thu Apr  6 17:00:46 1995  Michael Meissner  <meissner@tiktok.cygnus.com>

	* Makefile.in (X11_INCLUDES): Define as empty.
	(X11_CFLAGS): Define as including $(X11_INCLUDES).
	(X11_LIB_SWITCHES): Define as empty.
	(X11_LIBS): Define as -lX11.

	* configure.in (enable_gdbtk): If gdbtk, support the --x-includes
	and --x-libraries switches, setting the X11_INCLUDES and
	X11_LIB_SWITCHES respectively.  Instead of using a hardcoded -lX11
	in ENABLE_CLIBS, use the X11_LIB_SWITCHES and X11_LIBS variables.

	* gdbtk.c (gdbtk_init): If SIOCSPGRP is not available, don't use
	it.  This means that the stop button doesn't work, but is better
	than nothing.

Wed Mar 29 17:09:29 1995  Stu Grossman  (grossman@cygnus.com)

	* Makefile.in (gdbtk.o):  Use X11_CFLAGS to provide alternate
	locations (per-host) for X11 include files.
	* config/pa/hppahpux.mh (XM_CLIBS):  Add -L/usr/lib/X11R5 to force
	the use of R5 libs.
	(X11_CFLAGS):  Add this to indicate the locs
	of the R5 include files.

Wed Mar  8 16:12:21 1995  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.c (gdb_get_breakpoint_info):  Return error if breakpoint
	type is not bp_breakpoint.

Tue Feb 14 17:16:41 1995  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.c: Ditto.
	* gdbtk.c: General cleanups, get rid of unused variables.  Redo
	handling of stdout/stderr to just return output as the result of
	the tcl command that caused the output.  Cleanup -Wall stuff.
	* (breakpoint_notify):  Now returns just action and breakpoint
	number.
	* (gdb_get_breakpoint_list):  New routine.  Does the obvious.
	* (gdb_get_breakpoint_info):  Mostly derived from the old
	breakpoint_notify, but returns lots more info.
	* (dsprintf_append_element):  Helper routine, works like printf,
	but appends a tcl element onto the specified DString.  Good for
	building up lists as return values.
	* (gdbtk_enable/disable_breakpoint):  Go away.  Replaced with
	gdbtk_modify_breakpoint.
	* (*many routines*):  Use new result protocol.
	* (call_wrapper):  Make sure that recursive calls don't trash results.
	* gdbtk.tcl:  New windows, autocmd, and breakpoints.
	* (gdbtk_tcl_fputs):  Don't use $current_output_win redirection
	anymore.  It's not needed (in fact, this routine may not be needed
	anymore).
	* (gdbtk_tcl_breakpoint):  Change to reflect new breakpoint
	notification protocol.
	* (gdbtk_tcl_busy gdbtk_tcl_idle):  Straighten out buttons, remove
	catches.
	* (interactive_cmd):  Use this wrapper around button invocations
	of many commands.  This will catch errors and put the results into
	the command window.  It also updates all the other windows.
	* Also, change reliefs of most things to sunken.  This actually
	looks better.
	* (create_file_win):  Fix margin binding to allow breakpoints to
	work again.
	* (create_asm_win):  Use return value of gdb_disassemble instead
	of implicit I/O to the command window.	
	* (create_command_window):  Use new result protocol to get output
	from commands.

Sun Feb  5 20:32:44 1995  Jim Kingdon  (kingdon@lioth.cygnus.com)

	* gdbtk.c (gdb_disassemble): Deference pointer to function before
	calling it (pre-ANSI compilers generally require this).

Fri Feb  3 11:19:20 1995  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.c (gdb_disassemble): Get rid of
	dis_asm_read_memory_hook.  We can now call the disassemblers
	directly and have no need for this hook anymore.

Mon Jan 30 17:34:24 1995  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.tcl (create_file_win):  Disable old popup menu for source
	window.

Wed Jan 25 18:23:46 1995  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.c (gdbtk_init):  Prevent segfault when gdbtk.tcl can't be
	found.
	* gdbtk.tcl:  Initialize expr_update_list() to prevent errors when
	popping up expression window for the first time.

Tue Jan 24 12:10:28 1995  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.tcl (create_registers_window):  Work around a radiobutton
	widget bug to make Options|Natural button work.

	* gdbtk.c (gdb_disassemble):  Fix problem with source+assembly and
	g++ caused by out-of-order pc's.
	* gdbtk.tcl (files_command):  Remove duplicate file names.  Also,
	add scrollbar.

Mon Jan 23 17:21:09 1995  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.tcl:  Take .gdbtkinit if it exists.  Makes gdbtk match the
	doc!

Thu Jan 12 15:02:40 1995  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.c, gdbtk.tcl:  Update/add copyright.
	* gdbtk.tcl (build_framework):  Several fixes for filespec widget,
	including dismiss button, and better error handling.
	* (create_command_win):  Bind button 2 to retrieve selection.

Wed Jan 11 17:06:55 1995  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.tcl:  Add button to control mixed source disassembly.
	Use text widgets in expr window.  The give me more control over
	layout.
	Add auto-updating of exprs in expression window.
	Handle expressions out of scope a bit better.
	Make selected window pop up to the top when invoked via the
	menubar.
	Make copyright message have raised relief.

	* gdbtk.c (gdbtk_init):  Improve handling for errors in gdbtk.tcl
	during startup.

Thu Jan  5 17:38:29 1995  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.c (finish_saving_output):  Don't do anything if not saving
	output.
	* (breakpoint_notify):  Don't send null filename to tcl.
	* (gdb_eval):  New tcl command to eval an expression.
	* (gdb_disassemble):  New tcl command to do disassembly.  This
	allows tcl code to choose between exec file and target memeory,
	and can also do mixed source and assembly.
	* (gdbtk_init):  Move reading of gdbtk.tcl to the end to make sure
	that more of the environment is set up.  Also, create link between
	gdb and tcl vars disassemble{-_}from{-_}exec.

	* gdbtk.tcl:  New expression window support.
	* Make assembly window be 80 columns wide.
	* Use new disassembly method.  Add menu items to select
	disassembly from exec file or target.
	* Change View menubar item to Options.

	* Get rid of Stack, Breakpoints, Signals, and Variables Windows,
	since they don't exist yet.

	* Pop up a copyright window on startup.

Wed Jan  4 19:49:10 1995  Stan Shebs  <shebs@andros.cygnus.com>

	* gdbtk.tcl (build_framework): Add standard commands menu, more
	windows to standard windows menu.
	(not_implemented_yet): Clarify message.

Fri Dec 30 15:49:00 1994  Stan Shebs  <shebs@andros.cygnus.com>

	* gdbtk.tcl (FSBox): New proc, File Selection Box code from exmh.
	(not_implemented_yet): New proc.
	(build_framework): Add various file commands to file menu.

Fri Dec 23 16:18:50 1994  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.c (gdbtk_wait gdbtk_init):  Portability improvements for
	SIGIO handling.

Mon Dec 19 09:55:47 1994  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.tcl (update_assembly):  Force update to make sure that pc
	is visible when creating new assembly windows.

Sun Dec 18 23:31:20 1994  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.c (gdbtk_wait gdbtk_init):  Use different method of
	enabling I/O interrupts for SVR4 (streams).
	* (start_saving_output save_output get_saved_output
	finish_saving_output flush_holdbuf gdbtk_flush gdbtk_fputs
	gdbtk_init):
	Totally revamp to use TCLs dynamic string functions.  Also, quote
	all data passed back to TCL to prevent errors with unmatched
	braces, odd characters, etc...  This fixes several wierd problems
	with outputting strings containing unmatched braces.
	* (breakpoint_notify gdb_loc):  Use long hex format to output
	addresses of breakpoints and PCs.  This fixes some Alpha problems.
	* (breakpoint_notify):  Add stream arg to call to gdbtk_fputs.
	* (gdb_listfiles):  Also, go through the symtabs when looking for
	files.  This makes xcoff work (sort of), but probably breaks
	something else.
	* (gdb_stop):  Return TCL_OK instead of nothing.  This fixes odd
	TCL errors when hitting stop button.
	* (tk_command):  Don't pass interp->result on to Tcl_{Var}Eval, as
	that will trash the result.  strdup the result instead and pass
	that on.  Improve error handling as well.

	* gdbtk.tcl (gdbtk_tcl_flush):  Use global def of
	current_output_win.  Makes flushing actually work!
	* (asm_win_name create_asm_win update_assembly):  Bunch of fixes
	to make assembly windows stop flashing when loading a new file.
	* (gdbtk_tcl_busy gdbtk_tcl_idle):  Use catch to prevent gdb_cmd
	errors from losing control.
	* (create_source_window):  Add source file selection to View menu.
	* (create_command_window (<Key-Return> binding):  Quote text fed
	into gdb_cmd to prevent eval errors.

Thu Dec 15 16:40:10 1994  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.c: Improve mechanism for capturing output values.
	(full_filename): Remove.
	(gdb_cmd call_wrapper gdbtk_init): Protect all calls from tcl land
	with call_wrapper.  This prevents longjmps (usually via error())
	from jumping out of tcl/tk and leaving things in an indeterminate
	state.
	(gdbtk_fputs): Differentiate stdout from stderr when passing text
	into tcl land.
	* gdbtk.tcl: New view option to disable line numbers.  Put catch
	around most uses of gdb_cmd.  Add update button to reg config
	window.  Stop doing immediate updates when selecting registers.
	Change register view values into checkbuttons.

Mon Dec 12 16:59:29 1994  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.tcl (reg_config_menu create_registers_window
	recompute_reg_display_list):  Use array instead of individual vars
	for register display list.
	* (recompute_reg_display_list update_registers):  Fix bug with not
	displaying all registers.

Mon Dec 12 12:22:21 1994  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.c:  New tcl commands:  gdb_fetch_registers,
	gdb_changed_register_list, and gdb_regnames.
	* gdbtk.tcl:  Use monochrome color model for now.
	* (delete_breakpoint_tag create_file_win):  Add breakdot support.
	* (create_file_win create_asm_win update_listing build_framework
	create_source_window create_command_window):  Re-org window
	creation to give all windows consistent look and feel.
	* (update_listing update_asm):  Change pc pointer to '->'.
	* (registers_command reg_config_menu create_registers_window
	populate_reg_window update_registers):  Revamp register window.
	Allow selection of registers to be displayed.  Highlight changed
	registers.

Mon Nov 28 09:17:20 1994  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.tcl (build_framework):  Fix bug with setting window titles.

	* gdbtk.tcl (build_framework):  Add "Report bug" to help menu.

	* gdbtk.tcl:  Re-arrange windows using new, consistent layout. Clean
	up lots of code and centralize framework initialization.

Wed Nov 16 15:28:29 1994  Rob Savoye  (rob@cygnus.com)

	* Makefile.in: Fix the test for installing gdbtk.

Mon Nov 14 08:51:29 1994  Stu Grossman  (grossman@cygnus.com)

	* Makefile.in:  Install gdbtk.tcl.
	* configure.in:  Add ENABLE_GDBTK flag.
	* gdbtk.c (gdb_sourcelines):  Returns list of source lines
	containing code.  (gdb_regnames):  Returns list of register names.

Thu Nov  3 14:25:24 1994  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.c (gdb_stop):  Switch to target_stop().

Tue Nov  1 16:41:12 1994  Stu Grossman  (grossman@cygnus.com)

	* Makefile.in:  Use $(objdir)/tcl and $(objdir)/tk if they are
	available.
	* configure.in (ENABLE_CLIBS):  Use $(TCL) and $(TK) instead of
	-ltcl and -ltk.
	* gdbtk.c:  Get rid of lots of unnecessary #includes.
	* (gdbtk_init):  Use ConnectionNumber macro instead of referencing
	Display structure directly.
	* gdbtk.tcl:  Change exit button to quit button.

Wed Oct 26 15:41:07 1994  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.c: Change sense and name of no_windows variable.  Now
 	called use_windows, and defaults to off (for compatibility).

Thu Oct 20 17:35:45 1994  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.c (gdb_cmd):  Force GUI into idle mode when errors occur.
	* (gdb_stop):  New tcl command to stop the target process.
	* (x_event, gdbtk_wait):  Allow GUI to interrupt gdb out of target
	waits.
	* (gdbtk_call_command):  Wrapper around command processing to
	alert GUI of target state changes.
	* (gdbtk_init):  Get the fd of X server for doing async
	notification of X events (via x_event).  Setup new hooks.
	* gdbtk.tcl:  Add scrollbars to assembly and command windows.
	* Change window foreground & background colors.
	* Create margin tag for breakpoints in source and assembly windows.
	* Add new routines to be invoked when target state changes to/from
	idle.
	* Add start of expression window.
	* Change bindings of mouse button 1 in assembly and source window
	to just set or clear breakpoints when in the margin tag.
	* Change shape of register window to be more vertical to better
	reflect its contents.
	* Add stop button.
	* Cleanup some code around command window bindings.

Sat Sep 17 17:05:14 1994  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.tcl:  Let ^U delete lines in the command window.

Fri Sep 16 15:40:34 1994  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.c:  Replace calls to full_filename with symtab_to_filename.  
	* gdbtk.tcl:  New routine pc_to_line replaces in line code.  New
	routine decr replaces in line code.
	* (create_file_win):  Use catch to handle open failures more
	elegantly.  Also, create special window to display file open
	failure message.  Move opening of file prior to creation of text
	widget.
	* (create_asm_win):  Add PC as argument.  We now base disassembly
	on PC instead of function name, since function names can be
	ambiguous (usually seen with shared libs).  Also, use catch to
	simplify code where we don't care about failures.

Wed Sep 14 00:55:26 1994  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.tcl:  Add ref counts to breakpoint tags.
	* Put quotes around function name in disassemble command to better
	handle assembler names containing `.'.
	* Make pclist element 0 be filler to avoid off-by-one problem with
	line numbers.
	* Set names of top-level windows.
	* Add register display window.
	* Add PC to label of assembly window.

Tue Sep 13 08:59:04 1994  Stu Grossman  (grossman@cygnus.com)

	* gdbtk.c (gdbtk_flush gdbtk_fputs):  Buffer up output to make
	disassembly more efficient.
	* (breakpoint_notify):  Include pc in gdbtk_tcl_breakpoint
	callback.
	* (gdb_loc):  Include pc in return value.  Also, return function
	name if arg was specified.
	* (gdb_cmd_stub):  Call gdb_flush to drain internal GDB buffers
	after command completes.
	* (gdbtk_init):  Improve error handling.

	* gdbtk.tcl:  Add lots of comments.  Clean up code.
	* (gdbtk_tcl_fputs):  Make output window redirectable.
	* Add assembly window, and breapoint support.
	* Make button 1 in margin toggle breakpoints.
	* Use stippling to indicate breakpoint disabling.

Fri Sep  2 19:11:40 1994  Stu Grossman  (grossman@cygnus.com)

	* configure.in: Don't symlink to gdbtk.tcl if it's already there.

Thu Jul 28 14:37:36 1994  Stu Grossman  (grossman@cygnus.com)

	Support for TK GUI.
	* Makefile.in:  Add rule for gdbtk.o.
	* configure.in:  Add support for --enable-gdbtk.
	* gdbtk.c:  New file.  Contains support routines for TK interface.
	* gdbtk.tcl:  New file.  Implements GUI policy.

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