1 /* Startup code for gdbtk.
2 Copyright 1994, 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
4 Written by Stu Grossman <grossman@cygnus.com> of Cygnus Support.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
31 #include "tracepoint.h"
48 /* start-sanitize-ide */
52 /* end-sanitize-ide */
55 #ifdef ANSI_PROTOTYPES
65 #include <sys/ioctl.h>
66 #include "gdb_string.h"
74 /* For Cygwin, we use a timer to periodically check for Windows
75 messages. FIXME: It would be better to not poll, but to instead
76 rewrite the target_wait routines to serve as input sources.
77 Unfortunately, that will be a lot of work. */
78 static sigset_t nullsigmask
;
79 static struct sigaction act1
, act2
;
80 static struct itimerval it_on
, it_off
;
82 extern int Tktable_Init
PARAMS ((Tcl_Interp
*interp
));
84 static void gdbtk_init
PARAMS ((char *));
85 void gdbtk_interactive
PARAMS ((void));
86 static void cleanup_init
PARAMS ((int));
87 static void tk_command
PARAMS ((char *, int));
89 void gdbtk_add_hooks
PARAMS ((void));
90 int gdbtk_test
PARAMS ((char *));
93 * gdbtk_fputs is defined in the gdbtk_hooks.c, but we need it here
94 * because we delay adding this hook till all the setup is done. That
95 * way errors will go to stdout.
98 extern void gdbtk_fputs
PARAMS ((const char *, FILE *));
100 /* Handle for TCL interpreter */
101 Tcl_Interp
*gdbtk_interp
= NULL
;
103 static int gdbtk_timer_going
= 0;
105 /* linked variable used to tell tcl what the current thread is */
108 /* This variable is true when the inferior is running. See note in
109 * gdbtk.h for details.
113 /* This variable holds the name of a Tcl file which should be sourced by the
114 interpreter when it goes idle at startup. Used with the testsuite. */
115 static char *gdbtk_source_filename
= NULL
;
119 /* Supply malloc calls for tcl/tk. We do not want to do this on
120 Windows, because Tcl_Alloc is probably in a DLL which will not call
121 the mmalloc routines. */
127 return xmalloc (size
);
131 Tcl_Realloc (ptr
, size
)
135 return xrealloc (ptr
, size
);
145 #endif /* ! _WIN32 */
149 /* On Windows, if we hold a file open, other programs can't write to
150 * it. In particular, we don't want to hold the executable open,
151 * because it will mean that people have to get out of the debugging
152 * session in order to remake their program. So we close it, although
153 * this will cost us if and when we need to reopen it.
164 bfd_cache_close (o
->obfd
);
167 if (exec_bfd
!= NULL
)
168 bfd_cache_close (exec_bfd
);
174 /* TclDebug (const char *fmt, ...) works just like printf() but
175 * sends the output to the GDB TK debug window.
176 * Not for normal use; just a convenient tool for debugging
180 #ifdef ANSI_PROTOTYPES
181 TclDebug (const char *fmt
, ...)
188 char buf
[512], *v
[2], *merge
;
190 #ifdef ANSI_PROTOTYPES
191 va_start (args
, fmt
);
195 fmt
= va_arg (args
, char *);
201 vsprintf (buf
, fmt
, args
);
204 merge
= Tcl_Merge (2, v
);
205 Tcl_Eval (gdbtk_interp
, merge
);
211 * The rest of this file contains the start-up, and event handling code for gdbtk.
215 * This cleanup function is added to the cleanup list that surrounds the Tk
216 * main in gdbtk_init. It deletes the Tcl interpreter.
220 cleanup_init (ignored
)
223 if (gdbtk_interp
!= NULL
)
224 Tcl_DeleteInterp (gdbtk_interp
);
228 /* Come here during long calculations to check for GUI events. Usually invoked
229 via the QUIT macro. */
234 /* Tk_DoOneEvent (TK_DONT_WAIT|TK_IDLE_EVENTS); */
241 static int first
= 1;
242 /*TclDebug ("Starting timer....");*/
245 /* first time called, set up all the structs */
247 sigemptyset (&nullsigmask
);
249 act1
.sa_handler
= x_event
;
250 act1
.sa_mask
= nullsigmask
;
253 act2
.sa_handler
= SIG_IGN
;
254 act2
.sa_mask
= nullsigmask
;
257 it_on
.it_interval
.tv_sec
= 0;
258 it_on
.it_interval
.tv_usec
= 250000; /* .25 sec */
259 it_on
.it_value
.tv_sec
= 0;
260 it_on
.it_value
.tv_usec
= 250000;
262 it_off
.it_interval
.tv_sec
= 0;
263 it_off
.it_interval
.tv_usec
= 0;
264 it_off
.it_value
.tv_sec
= 0;
265 it_off
.it_value
.tv_usec
= 0;
268 if (!gdbtk_timer_going
)
270 sigaction (SIGALRM
, &act1
, NULL
);
271 setitimer (ITIMER_REAL
, &it_on
, NULL
);
272 gdbtk_timer_going
= 1;
279 if (gdbtk_timer_going
)
281 gdbtk_timer_going
= 0;
282 /*TclDebug ("Stopping timer.");*/
283 setitimer (ITIMER_REAL
, &it_off
, NULL
);
284 sigaction (SIGALRM
, &act2
, NULL
);
288 /* gdbtk_init installs this function as a final cleanup. */
291 gdbtk_cleanup (dummy
)
294 Tcl_Eval (gdbtk_interp
, "gdbtk_cleanup");
297 struct ide_event_handle
*h
= (struct ide_event_handle
*) dummy
;
298 ide_interface_deregister_all (h
);
304 /* Initialize gdbtk. This involves creating a Tcl interpreter,
305 * defining all the Tcl commands that the GUI will use, pointing
306 * all the gdb "hooks" to the correct functions,
307 * and setting the Tcl auto loading environment so that we can find all
308 * the Tcl based library files.
315 struct cleanup
*old_chain
;
316 char *lib
, *gdbtk_lib
, *gdbtk_lib_tmp
, *gdbtk_file
;
318 Tcl_Obj
*auto_path_elem
, *auto_path_name
;
321 /* start-sanitize-ide */
322 struct ide_event_handle
*h
;
325 /* end-sanitize-ide */
328 /* If there is no DISPLAY environment variable, Tk_Init below will fail,
329 causing gdb to abort. If instead we simply return here, gdb will
330 gracefully degrade to using the command line interface. */
333 if (getenv ("DISPLAY") == NULL
)
337 old_chain
= make_cleanup ((make_cleanup_func
) cleanup_init
, 0);
339 /* First init tcl and tk. */
340 Tcl_FindExecutable (argv0
);
341 gdbtk_interp
= Tcl_CreateInterp ();
344 Tcl_InitMemory (gdbtk_interp
);
348 error ("Tcl_CreateInterp failed");
350 if (Tcl_Init(gdbtk_interp
) != TCL_OK
)
351 error ("Tcl_Init failed: %s", gdbtk_interp
->result
);
354 /* For the IDE we register the cleanup later, after we've
355 initialized events. */
356 make_final_cleanup (gdbtk_cleanup
, NULL
);
359 /* Initialize the Paths variable. */
360 if (ide_initialize_paths (gdbtk_interp
, "gdbtcl") != TCL_OK
)
361 error ("ide_initialize_paths failed: %s", gdbtk_interp
->result
);
364 /* start-sanitize-ide */
365 /* Find the directory where we expect to find idemanager. We ignore
366 errors since it doesn't really matter if this fails. */
367 libexecdir
= Tcl_GetVar2 (gdbtk_interp
, "Paths", "libexecdir", TCL_GLOBAL_ONLY
);
371 h
= ide_event_init_from_environment (&errmsg
, libexecdir
);
372 make_final_cleanup (gdbtk_cleanup
, h
);
375 Tcl_AppendResult (gdbtk_interp
, "can't initialize event system: ", errmsg
,
377 fprintf(stderr
, "WARNING: ide_event_init_client failed: %s\n", gdbtk_interp
->result
);
379 Tcl_SetVar (gdbtk_interp
, "IDE_ENABLED", "0", 0);
383 if (ide_create_tclevent_command (gdbtk_interp
, h
) != TCL_OK
)
384 error ("ide_create_tclevent_command failed: %s", gdbtk_interp
->result
);
386 if (ide_create_edit_command (gdbtk_interp
, h
) != TCL_OK
)
387 error ("ide_create_edit_command failed: %s", gdbtk_interp
->result
);
389 if (ide_create_property_command (gdbtk_interp
, h
) != TCL_OK
)
390 error ("ide_create_property_command failed: %s", gdbtk_interp
->result
);
392 if (ide_create_build_command (gdbtk_interp
, h
) != TCL_OK
)
393 error ("ide_create_build_command failed: %s", gdbtk_interp
->result
);
395 if (ide_create_window_register_command (gdbtk_interp
, h
, "gdb-restore")
397 error ("ide_create_window_register_command failed: %s",
398 gdbtk_interp
->result
);
400 if (ide_create_window_command (gdbtk_interp
, h
) != TCL_OK
)
401 error ("ide_create_window_command failed: %s", gdbtk_interp
->result
);
403 if (ide_create_exit_command (gdbtk_interp
, h
) != TCL_OK
)
404 error ("ide_create_exit_command failed: %s", gdbtk_interp
->result
);
406 if (ide_create_help_command (gdbtk_interp
) != TCL_OK
)
407 error ("ide_create_help_command failed: %s", gdbtk_interp
->result
);
410 if (ide_initialize (gdbtk_interp, "gdb") != TCL_OK)
411 error ("ide_initialize failed: %s", gdbtk_interp->result);
414 Tcl_SetVar (gdbtk_interp
, "IDE_ENABLED", "1", 0);
416 /* end-sanitize-ide */
418 Tcl_SetVar (gdbtk_interp
, "IDE_ENABLED", "0", 0);
421 /* We don't want to open the X connection until we've done all the
422 IDE initialization. Otherwise, goofy looking unfinished windows
423 pop up when ILU drops into the TCL event loop. */
425 if (Tk_Init(gdbtk_interp
) != TCL_OK
)
426 error ("Tk_Init failed: %s", gdbtk_interp
->result
);
428 if (Itcl_Init(gdbtk_interp
) == TCL_ERROR
)
429 error ("Itcl_Init failed: %s", gdbtk_interp
->result
);
430 Tcl_StaticPackage(gdbtk_interp
, "Tktable", Tktable_Init
,
431 (Tcl_PackageInitProc
*) NULL
);
433 if (Tix_Init(gdbtk_interp
) != TCL_OK
)
434 error ("Tix_Init failed: %s", gdbtk_interp
->result
);
435 Tcl_StaticPackage(gdbtk_interp
, "Tktable", Tktable_Init
,
436 (Tcl_PackageInitProc
*) NULL
);
438 if (Tktable_Init(gdbtk_interp
) != TCL_OK
)
439 error ("Tktable_Init failed: %s", gdbtk_interp
->result
);
441 Tcl_StaticPackage(gdbtk_interp
, "Tktable", Tktable_Init
,
442 (Tcl_PackageInitProc
*) NULL
);
444 * These are the commands to do some Windows Specific stuff...
448 if (ide_create_messagebox_command (gdbtk_interp
) != TCL_OK
)
449 error ("messagebox command initialization failed");
450 /* On Windows, create a sizebox widget command */
451 if (ide_create_sizebox_command (gdbtk_interp
) != TCL_OK
)
452 error ("sizebox creation failed");
453 if (ide_create_winprint_command (gdbtk_interp
) != TCL_OK
)
454 error ("windows print code initialization failed");
455 /* start-sanitize-ide */
456 /* An interface to ShellExecute. */
457 if (ide_create_shell_execute_command (gdbtk_interp
) != TCL_OK
)
458 error ("shell execute command initialization failed");
459 /* end-sanitize-ide */
460 if (ide_create_win_grab_command (gdbtk_interp
) != TCL_OK
)
461 error ("grab support command initialization failed");
462 /* Path conversion functions. */
463 if (ide_create_cygwin_path_command (gdbtk_interp
) != TCL_OK
)
464 error ("cygwin path command initialization failed");
468 * This adds all the Gdbtk commands.
471 if (Gdbtk_Init(gdbtk_interp
) != TCL_OK
)
473 error("Gdbtk_Init failed: %s", gdbtk_interp
->result
);
476 Tcl_StaticPackage(gdbtk_interp
, "Gdbtk", Gdbtk_Init
, NULL
);
478 /* This adds all the hooks that call up from the bowels of gdb
479 * back into Tcl-land...
484 /* Add a back door to Tk from the gdb console... */
486 add_com ("tk", class_obscure
, tk_command
,
487 "Send a command directly into tk.");
489 /* find the gdb tcl library and source main.tcl */
491 gdbtk_lib
= getenv ("GDBTK_LIBRARY");
494 if (access ("gdbtcl/main.tcl", R_OK
) == 0)
495 gdbtk_lib
= "gdbtcl";
497 gdbtk_lib
= GDBTK_LIBRARY
;
500 gdbtk_lib_tmp
= xstrdup (gdbtk_lib
);
503 /* see if GDBTK_LIBRARY is a path list */
504 lib
= strtok (gdbtk_lib_tmp
, GDBTK_PATH_SEP
);
506 auto_path_name
= Tcl_NewStringObj ("auto_path", -1);
510 auto_path_elem
= Tcl_NewStringObj (lib
, -1);
511 if (Tcl_ObjSetVar2 (gdbtk_interp
, auto_path_name
, NULL
, auto_path_elem
,
512 TCL_GLOBAL_ONLY
| TCL_APPEND_VALUE
| TCL_LIST_ELEMENT
) == NULL
)
514 fputs_unfiltered (Tcl_GetVar (gdbtk_interp
, "errorInfo", 0), gdb_stderr
);
519 gdbtk_file
= concat (lib
, "/main.tcl", (char *) NULL
);
520 if (access (gdbtk_file
, R_OK
) == 0)
523 Tcl_SetVar (gdbtk_interp
, "GDBTK_LIBRARY", lib
, 0);
527 while ((lib
= strtok (NULL
, ":")) != NULL
);
529 free (gdbtk_lib_tmp
);
530 Tcl_DecrRefCount(auto_path_name
);
534 /* Try finding it with the auto path. */
536 static const char script
[] ="\
537 proc gdbtk_find_main {} {\n\
538 global auto_path GDBTK_LIBRARY\n\
539 foreach dir $auto_path {\n\
540 set f [file join $dir main.tcl]\n\
541 if {[file exists $f]} then {\n\
542 set GDBTK_LIBRARY $dir\n\
550 if (Tcl_GlobalEval (gdbtk_interp
, (char *) script
) != TCL_OK
)
552 fputs_unfiltered (Tcl_GetVar (gdbtk_interp
, "errorInfo", 0), gdb_stderr
);
556 if (gdbtk_interp
->result
[0] != '\0')
558 gdbtk_file
= xstrdup (gdbtk_interp
->result
);
565 fputs_unfiltered_hook
= NULL
; /* Force errors to stdout/stderr */
566 if (getenv("GDBTK_LIBRARY"))
568 fprintf_unfiltered (stderr
, "Unable to find main.tcl in %s\n",getenv("GDBTK_LIBRARY"));
569 fprintf_unfiltered (stderr
,
570 "Please set GDBTK_LIBRARY to a path that includes the GDB tcl files.\n");
574 fprintf_unfiltered (stderr
, "Unable to find main.tcl in %s\n", GDBTK_LIBRARY
);
575 fprintf_unfiltered (stderr
, "You might want to set GDBTK_LIBRARY\n");
580 /* Defer setup of fputs_unfiltered_hook to near the end so that error messages
581 prior to this point go to stdout/stderr. */
583 fputs_unfiltered_hook
= gdbtk_fputs
;
585 /* start-sanitize-tclpro */
586 #ifdef TCLPRO_DEBUGGER
588 Tcl_DString source_cmd
;
590 Tcl_DStringInit (&source_cmd
);
591 Tcl_DStringAppend (&source_cmd
,
592 "if {[info exists env(DEBUG_STUB)]} {source $env(DEBUG_STUB); " -1);
593 Tcl_DStringAppend (&source_cmd
, "debugger_init; debugger_eval {source {", -1);
594 Tcl_DStringAppend (&source_cmd
, gdbtk_file
, -1);
595 Tcl_DStringAppend (&source_cmd
, "}}} else {source {", -1);
596 Tcl_DStringAppend (&source_cmd
, gdbtk_file
, -1);
597 Tcl_DStringAppend (&source_cmd
, "}}", -1);
598 if (Tcl_GlobalEval (gdbtk_interp
, Tcl_DStringValue (&source_cmd
)) != TCL_OK
)
600 /* end-sanitize-tclpro */
601 if (Tcl_EvalFile (gdbtk_interp
, gdbtk_file
) != TCL_OK
)
602 /* start-sanitize-tclpro */
604 /* end-sanitize-tclpro */
608 /* Force errorInfo to be set up propertly. */
609 Tcl_AddErrorInfo (gdbtk_interp
, "");
611 msg
= Tcl_GetVar (gdbtk_interp
, "errorInfo", TCL_GLOBAL_ONLY
);
613 fputs_unfiltered_hook
= NULL
; /* Force errors to stdout/stderr */
616 MessageBox (NULL
, msg
, NULL
, MB_OK
| MB_ICONERROR
| MB_TASKMODAL
);
618 fputs_unfiltered (msg
, gdb_stderr
);
623 /* start-sanitize-tclpro */
624 #ifdef TCLPRO_DEBUGGER
625 Tcl_DStringFree(&source_cmd
);
628 /* end-sanitize-tclpro */
631 /* start-sanitize-ide */
632 /* Don't do this until we have initialized. Otherwise, we may get a
633 run command before we are ready for one. */
634 if (ide_run_server_init (gdbtk_interp
, h
) != TCL_OK
)
635 error ("ide_run_server_init failed: %s", gdbtk_interp
->result
);
636 /* end-sanitize-ide */
641 /* Now source in the filename provided by the --tclcommand option.
642 This is mostly used for the gdbtk testsuite... */
644 if (gdbtk_source_filename
!= NULL
)
646 char *s
= "after idle source ";
647 char *script
= concat (s
, gdbtk_source_filename
, (char *) NULL
);
648 Tcl_Eval (gdbtk_interp
, script
);
649 free (gdbtk_source_filename
);
654 discard_cleanups (old_chain
);
657 /* gdbtk_test is used in main.c to validate the -tclcommand option to
658 gdb, which sources in a file of tcl code after idle during the
659 startup procedure. */
662 gdbtk_test (filename
)
665 if (access (filename
, R_OK
) != 0)
668 gdbtk_source_filename
= xstrdup (filename
);
672 /* Come here during initialize_all_files () */
679 /* Tell the rest of the world that Gdbtk is now set up. */
681 init_ui_hook
= gdbtk_init
;
683 (void) FreeConsole ();
689 DWORD ft
= GetFileType (GetStdHandle (STD_INPUT_HANDLE
));
690 void cygwin_attach_handle_to_fd (char *, int, HANDLE
, int, int);
700 cygwin_attach_handle_to_fd ("/dev/conin", 0,
701 GetStdHandle (STD_INPUT_HANDLE
),
703 cygwin_attach_handle_to_fd ("/dev/conout", 1,
704 GetStdHandle (STD_OUTPUT_HANDLE
),
706 cygwin_attach_handle_to_fd ("/dev/conout", 2,
707 GetStdHandle (STD_ERROR_HANDLE
),
716 tk_command (cmd
, from_tty
)
722 struct cleanup
*old_chain
;
724 /* Catch case of no argument, since this will make the tcl interpreter dump core. */
726 error_no_arg ("tcl command to interpret");
728 retval
= Tcl_Eval (gdbtk_interp
, cmd
);
730 result
= strdup (gdbtk_interp
->result
);
732 old_chain
= make_cleanup (free
, result
);
734 if (retval
!= TCL_OK
)
737 printf_unfiltered ("%s\n", result
);
739 do_cleanups (old_chain
);
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