1 /* TK interface routines.
2 Copyright 1994 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
35 /* Non-zero means that we're doing the gdbtk interface. */
38 /* Non-zero means we are reloading breakpoints, etc from the
39 Gdbtk kernel, and we should suppress various messages */
40 static int gdbtk_reloading
= 0;
42 /* Handle for TCL interpreter */
43 static Tcl_Interp
*interp
= NULL
;
45 /* Handle for TK main window */
46 static Tk_Window mainWindow
= NULL
;
48 static int x_fd
; /* X network socket */
57 /* This routine redirects the output of fputs_unfiltered so that
58 the user can see what's going on in his debugger window. */
60 static char holdbuf
[200];
61 static char *holdbufp
= holdbuf
;
62 static int holdfree
= sizeof (holdbuf
);
67 if (holdbufp
== holdbuf
)
70 Tcl_VarEval (interp
, "gdbtk_tcl_fputs ", "{", holdbuf
, "}", NULL
);
72 holdfree
= sizeof (holdbuf
);
81 Tcl_VarEval (interp
, "gdbtk_tcl_flush", NULL
);
90 len
= strlen (ptr
) + 1;
96 if (len
> sizeof (holdbuf
))
98 Tcl_VarEval (interp
, "gdbtk_tcl_fputs ", "{", ptr
, "}", NULL
);
103 strncpy (holdbufp
, ptr
, len
);
116 query
= va_arg (args
, char *);
118 vsprintf(buf
, query
, args
);
119 Tcl_VarEval (interp
, "gdbtk_tcl_query ", "{", buf
, "}", NULL
);
121 val
= atol (interp
->result
);
127 full_filename(symtab
)
128 struct symtab
*symtab
;
136 if (symtab
->fullname
)
137 return savestring(symtab
->fullname
, strlen(symtab
->fullname
));
139 if (symtab
->filename
[0] == '/')
140 return savestring(symtab
->filename
, strlen(symtab
->filename
));
143 pathlen
= strlen(symtab
->dirname
);
146 if (symtab
->filename
)
147 pathlen
+= strlen(symtab
->filename
);
149 filename
= xmalloc(pathlen
+1);
152 strcpy(filename
, symtab
->dirname
);
155 if (symtab
->filename
)
156 strcat(filename
, symtab
->filename
);
163 breakpoint_notify(b
, action
)
164 struct breakpoint
*b
;
168 char bpnum
[50], line
[50], pc
[50];
169 struct symtab_and_line sal
;
173 if (b
->type
!= bp_breakpoint
)
176 sal
= find_pc_line (b
->address
, 0);
178 filename
= symtab_to_filename (sal
.symtab
);
180 sprintf (bpnum
, "%d", b
->number
);
181 sprintf (line
, "%d", sal
.line
);
182 sprintf (pc
, "0x%x", b
->address
);
184 v
= Tcl_VarEval (interp
,
185 "gdbtk_tcl_breakpoint ",
195 gdbtk_fputs (interp
->result
);
201 gdbtk_create_breakpoint(b
)
202 struct breakpoint
*b
;
204 breakpoint_notify(b
, "create");
208 gdbtk_delete_breakpoint(b
)
209 struct breakpoint
*b
;
211 breakpoint_notify(b
, "delete");
215 gdbtk_enable_breakpoint(b
)
216 struct breakpoint
*b
;
218 breakpoint_notify(b
, "enable");
222 gdbtk_disable_breakpoint(b
)
223 struct breakpoint
*b
;
225 breakpoint_notify(b
, "disable");
228 /* This implements the TCL command `gdb_loc', which returns a list consisting
229 of the source and line number associated with the current pc. */
232 gdb_loc (clientData
, interp
, argc
, argv
)
233 ClientData clientData
;
240 struct symtab_and_line sal
;
246 pc
= selected_frame
? selected_frame
->pc
: stop_pc
;
247 sal
= find_pc_line (pc
, 0);
251 struct symtabs_and_lines sals
;
254 sals
= decode_line_spec (argv
[1], 1);
262 Tcl_SetResult (interp
, "Ambiguous line spec", TCL_STATIC
);
270 Tcl_SetResult (interp
, "wrong # args", TCL_STATIC
);
275 Tcl_AppendElement (interp
, sal
.symtab
->filename
);
277 Tcl_AppendElement (interp
, "");
279 find_pc_partial_function (pc
, &funcname
, NULL
, NULL
);
280 Tcl_AppendElement (interp
, funcname
);
282 filename
= symtab_to_filename (sal
.symtab
);
283 Tcl_AppendElement (interp
, filename
);
285 sprintf (buf
, "%d", sal
.line
);
286 Tcl_AppendElement (interp
, buf
); /* line number */
288 sprintf (buf
, "0x%x", pc
);
289 Tcl_AppendElement (interp
, buf
); /* PC */
298 execute_command (cmd
, 1);
300 return 1; /* Indicate success */
303 /* This implements the TCL command `gdb_cmd', which sends it's argument into
304 the GDB command scanner. */
307 gdb_cmd (clientData
, interp
, argc
, argv
)
308 ClientData clientData
;
314 struct cleanup
*old_chain
;
318 Tcl_SetResult (interp
, "wrong # args", TCL_STATIC
);
322 old_chain
= make_cleanup (null_routine
, 0);
324 val
= catch_errors (gdb_cmd_stub
, argv
[1], "", RETURN_MASK_ERROR
);
326 /* In case of an error, we may need to force the GUI into idle mode because
327 gdbtk_call_command may have bombed out while in the command routine. */
330 Tcl_VarEval (interp
, "gdbtk_tcl_idle", NULL
);
332 bpstat_do_actions (&stop_bpstat
);
333 do_cleanups (old_chain
);
335 /* Drain all buffered command output */
337 gdb_flush (gdb_stderr
);
338 gdb_flush (gdb_stdout
);
340 /* We could base the return value on val, but that would require most users
341 to use catch. Since GDB errors are already being handled elsewhere, I
342 see no reason to pass them up to the caller. */
348 gdb_listfiles (clientData
, interp
, argc
, argv
)
349 ClientData clientData
;
355 struct objfile
*objfile
;
356 struct partial_symtab
*psymtab
;
358 ALL_PSYMTABS (objfile
, psymtab
)
359 Tcl_AppendElement (interp
, psymtab
->filename
);
365 gdb_stop (clientData
, interp
, argc
, argv
)
366 ClientData clientData
;
376 tk_command (cmd
, from_tty
)
380 Tcl_VarEval (interp
, cmd
, NULL
);
382 gdbtk_fputs (interp
->result
);
387 cleanup_init (ignored
)
390 if (mainWindow
!= NULL
)
391 Tk_DestroyWindow (mainWindow
);
395 Tcl_DeleteInterp (interp
);
399 /* Come here during long calculations to check for GUI events. Usually invoked
400 via the QUIT macro. */
405 /* Tk_DoOneEvent (TK_DONT_WAIT|TK_IDLE_EVENTS); */
408 /* Come here when there is activity on the X file descriptor. */
414 /* Process pending events */
416 while (Tk_DoOneEvent (TK_DONT_WAIT
|TK_ALL_EVENTS
) != 0);
420 gdbtk_wait (pid
, ourstatus
)
422 struct target_waitstatus
*ourstatus
;
424 signal (SIGIO
, x_event
);
426 pid
= target_wait (pid
, ourstatus
);
428 signal (SIGIO
, SIG_IGN
);
433 /* This is called from execute_command, and provides a wrapper around
434 various command routines in a place where both protocol messages and
435 user input both flow through. Mostly this is used for indicating whether
436 the target process is running or not.
440 gdbtk_call_command (cmdblk
, arg
, from_tty
)
441 struct cmd_list_element
*cmdblk
;
445 if (cmdblk
->class == class_run
)
447 Tcl_VarEval (interp
, "gdbtk_tcl_busy", NULL
);
448 (*cmdblk
->function
.cfunc
)(arg
, from_tty
);
449 Tcl_VarEval (interp
, "gdbtk_tcl_idle", NULL
);
452 (*cmdblk
->function
.cfunc
)(arg
, from_tty
);
458 struct cleanup
*old_chain
;
459 char *gdbtk_filename
;
462 old_chain
= make_cleanup (cleanup_init
, 0);
464 /* First init tcl and tk. */
466 interp
= Tcl_CreateInterp ();
469 error ("Tcl_CreateInterp failed");
471 mainWindow
= Tk_CreateMainWindow (interp
, NULL
, "gdb", "Gdb");
474 return; /* DISPLAY probably not set */
476 if (Tcl_Init(interp
) != TCL_OK
)
477 error ("Tcl_Init failed: %s", interp
->result
);
479 if (Tk_Init(interp
) != TCL_OK
)
480 error ("Tk_Init failed: %s", interp
->result
);
482 Tcl_CreateCommand (interp
, "gdb_cmd", gdb_cmd
, NULL
, NULL
);
483 Tcl_CreateCommand (interp
, "gdb_loc", gdb_loc
, NULL
, NULL
);
484 Tcl_CreateCommand (interp
, "gdb_listfiles", gdb_listfiles
, NULL
, NULL
);
485 Tcl_CreateCommand (interp
, "gdb_stop", gdb_stop
, NULL
, NULL
);
487 gdbtk_filename
= getenv ("GDBTK_FILENAME");
489 if (access ("gdbtk.tcl", R_OK
) == 0)
490 gdbtk_filename
= "gdbtk.tcl";
492 gdbtk_filename
= GDBTK_FILENAME
;
494 if (Tcl_EvalFile (interp
, gdbtk_filename
) != TCL_OK
)
495 error ("Failure reading %s: %s", gdbtk_filename
, interp
->result
);
497 /* Get the file descriptor for the X server */
499 x_fd
= ConnectionNumber (Tk_Display (mainWindow
));
501 /* Setup for I/O interrupts */
503 signal (SIGIO
, SIG_IGN
);
505 i
= fcntl (x_fd
, F_GETFL
, 0);
506 fcntl (x_fd
, F_SETFL
, i
|FASYNC
);
507 fcntl (x_fd
, F_SETOWN
, getpid());
509 command_loop_hook
= Tk_MainLoop
;
510 fputs_unfiltered_hook
= gdbtk_fputs
;
511 print_frame_info_listing_hook
= null_routine
;
512 query_hook
= gdbtk_query
;
513 flush_hook
= gdbtk_flush
;
514 create_breakpoint_hook
= gdbtk_create_breakpoint
;
515 delete_breakpoint_hook
= gdbtk_delete_breakpoint
;
516 enable_breakpoint_hook
= gdbtk_enable_breakpoint
;
517 disable_breakpoint_hook
= gdbtk_disable_breakpoint
;
518 interactive_hook
= gdbtk_interactive
;
519 target_wait_hook
= gdbtk_wait
;
520 call_command_hook
= gdbtk_call_command
;
522 discard_cleanups (old_chain
);
524 add_com ("tk", class_obscure
, tk_command
,
525 "Send a command directly into tk.");
528 /* Come here during initialze_all_files () */
535 /* Tell the rest of the world that Gdbtk is now set up. */
537 init_ui_hook
= gdbtk_init
;