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"
76 extern int (*ui_load_progress_hook
) PARAMS ((char *, unsigned long));
77 extern void (*pre_add_symbol_hook
) PARAMS ((char *));
78 extern void (*post_add_symbol_hook
) PARAMS ((void));
79 extern void (*selected_frame_level_changed_hook
) PARAMS ((int));
81 extern void (*ui_loop_hook
) PARAMS ((int));
84 static void gdbtk_create_tracepoint
PARAMS ((struct tracepoint
*));
85 static void gdbtk_delete_tracepoint
PARAMS ((struct tracepoint
*));
86 static void gdbtk_modify_tracepoint
PARAMS ((struct tracepoint
*));
87 static void gdbtk_create_breakpoint
PARAMS ((struct breakpoint
*));
88 static void gdbtk_delete_breakpoint
PARAMS ((struct breakpoint
*));
89 static void gdbtk_modify_breakpoint
PARAMS ((struct breakpoint
*));
90 static void gdbtk_exec_file_changed
PARAMS ((char *));
91 static void tk_command_loop
PARAMS ((void));
92 static void gdbtk_call_command
PARAMS ((struct cmd_list_element
*, char *, int));
93 static int gdbtk_wait
PARAMS ((int, struct target_waitstatus
*));
94 void x_event
PARAMS ((int));
95 static int gdbtk_query
PARAMS ((const char *, va_list));
96 static void gdbtk_warning
PARAMS ((const char *, va_list));
97 void gdbtk_ignorable_warning
PARAMS ((const char *));
98 static char* gdbtk_readline
PARAMS ((char *));
100 #ifdef ANSI_PROTOTYPES
101 gdbtk_readline_begin (char *format
, ...);
103 gdbtk_readline_begin ();
105 static void gdbtk_readline_end
PARAMS ((void));
106 static void gdbtk_flush
PARAMS ((FILE *));
107 static void gdbtk_pre_add_symbol
PARAMS ((char *));
108 static void gdbtk_print_frame_info
PARAMS ((struct symtab
*, int, int, int));
109 static void gdbtk_post_add_symbol
PARAMS ((void));
110 static void pc_changed
PARAMS ((void));
111 static void tracepoint_notify
PARAMS ((struct tracepoint
*, const char *));
112 static void gdbtk_selected_frame_changed
PARAMS ((int));
113 static void gdbtk_context_change
PARAMS ((int));
116 * gdbtk_fputs can't be static, because we need to call it in gdbtk.c.
117 * See note there for details.
120 void gdbtk_fputs
PARAMS ((const char *, FILE *));
121 int gdbtk_load_hash
PARAMS ((char *, unsigned long));
122 static void breakpoint_notify
PARAMS ((struct breakpoint
*, const char *));
125 * gdbtk_add_hooks - add all the hooks to gdb. This will get called by the
126 * startup code to fill in the hooks needed by core gdb.
130 gdbtk_add_hooks(void)
132 command_loop_hook
= tk_command_loop
;
133 call_command_hook
= gdbtk_call_command
;
134 readline_begin_hook
= gdbtk_readline_begin
;
135 readline_hook
= gdbtk_readline
;
136 readline_end_hook
= gdbtk_readline_end
;
138 print_frame_info_listing_hook
= gdbtk_print_frame_info
;
139 query_hook
= gdbtk_query
;
140 warning_hook
= gdbtk_warning
;
141 flush_hook
= gdbtk_flush
;
143 create_breakpoint_hook
= gdbtk_create_breakpoint
;
144 delete_breakpoint_hook
= gdbtk_delete_breakpoint
;
145 modify_breakpoint_hook
= gdbtk_modify_breakpoint
;
147 interactive_hook
= gdbtk_interactive
;
148 target_wait_hook
= gdbtk_wait
;
149 ui_load_progress_hook
= gdbtk_load_hash
;
152 ui_loop_hook
= x_event
;
154 pre_add_symbol_hook
= gdbtk_pre_add_symbol
;
155 post_add_symbol_hook
= gdbtk_post_add_symbol
;
156 exec_file_display_hook
= gdbtk_exec_file_changed
;
158 create_tracepoint_hook
= gdbtk_create_tracepoint
;
159 delete_tracepoint_hook
= gdbtk_delete_tracepoint
;
160 modify_tracepoint_hook
= gdbtk_modify_tracepoint
;
162 pc_changed_hook
= pc_changed
;
163 selected_frame_level_changed_hook
= gdbtk_selected_frame_changed
;
164 context_hook
= gdbtk_context_change
;
167 /* These control where to put the gdb output which is created by
168 {f}printf_{un}filtered and friends. gdbtk_fputs and gdbtk_flush are the
169 lowest level of these routines and capture all output from the rest of GDB.
171 The reason to use the result_ptr rather than the gdbtk_interp's result
172 directly is so that a call_wrapper invoked function can preserve its result
173 across calls into Tcl which might be made in the course of the function's
176 * result_ptr->obj_ptr is where to accumulate the result.
177 * GDBTK_TO_RESULT flag means the output goes to the gdbtk_tcl_fputs proc
178 instead of to the result_ptr.
179 * GDBTK_MAKES_LIST flag means add to the result as a list element.
183 gdbtk_result
*result_ptr
= NULL
;
186 /* This allows you to Tcl_Eval a tcl command which takes
187 a command word, and then a single argument. */
189 int gdbtk_two_elem_cmd (cmd_name
, argv1
)
194 int result
, flags_ptr
, arg_len
, cmd_len
;
196 arg_len
= Tcl_ScanElement (argv1
, &flags_ptr
);
197 cmd_len
= strlen (cmd_name
);
198 command
= malloc(arg_len
+ cmd_len
+ 2);
199 strcpy (command
, cmd_name
);
200 strcat (command
, " ");
202 Tcl_ConvertElement (argv1
, command
+ cmd_len
+ 1, flags_ptr
);
204 result
= Tcl_Eval (gdbtk_interp
, command
);
215 /* Force immediate screen update */
217 Tcl_VarEval (gdbtk_interp
, "gdbtk_tcl_flush", NULL
);
221 /* This handles all the output from gdb. All the gdb printf_xxx functions
222 * eventually end up here. The output is either passed to the result_ptr
223 * where it will go to the result of some gdbtk command, or passed to the
224 * Tcl proc gdbtk_tcl_fputs (where it is usually just dumped to the console
229 * 1) result_ptr == NULL - This happens when some output comes from gdb which
230 * is not generated by a command in gdbtk-cmds, usually startup stuff.
231 * In this case we just route the data to gdbtk_tcl_fputs.
232 * 2) The GDBTK_TO_RESULT flag is set - The result is supposed to go to Tcl.
233 * We place the data into the result_ptr, either as a string,
234 * or a list, depending whether the GDBTK_MAKES_LIST bit is set.
235 * 3) The GDBTK_TO_RESULT flag is unset - We route the data to gdbtk_tcl_fputs
236 * UNLESS it was coming to stderr. Then we place it in the result_ptr
237 * anyway, so it can be dealt with.
242 gdbtk_fputs (ptr
, stream
)
248 if (result_ptr
!= NULL
)
250 if (result_ptr
->flags
& GDBTK_TO_RESULT
)
252 if (result_ptr
->flags
& GDBTK_MAKES_LIST
)
253 Tcl_ListObjAppendElement(NULL
, result_ptr
->obj_ptr
,
254 Tcl_NewStringObj((char *) ptr
, -1));
256 Tcl_AppendToObj (result_ptr
->obj_ptr
, (char *) ptr
, -1);
258 else if (stream
== gdb_stderr
)
260 if (result_ptr
->flags
& GDBTK_ERROR_STARTED
)
261 Tcl_AppendToObj (result_ptr
->obj_ptr
, (char *) ptr
, -1);
264 Tcl_SetStringObj (result_ptr
->obj_ptr
, (char *) ptr
, -1);
265 result_ptr
->flags
|= GDBTK_ERROR_STARTED
;
270 gdbtk_two_elem_cmd ("gdbtk_tcl_fputs", (char *) ptr
);
271 if (result_ptr
->flags
& GDBTK_MAKES_LIST
)
272 gdbtk_two_elem_cmd ("gdbtk_tcl_fputs", " ");
277 gdbtk_two_elem_cmd ("gdbtk_tcl_fputs", (char *) ptr
);
284 * This routes all warnings to the Tcl function "gdbtk_tcl_warning".
288 gdbtk_warning (warning
, args
)
294 vsprintf (buf
, warning
, args
);
295 gdbtk_two_elem_cmd ("gdbtk_tcl_warning", buf
);
300 * This routes all ignorable warnings to the Tcl function
301 * "gdbtk_tcl_ignorable_warning".
305 gdbtk_ignorable_warning (warning
)
309 sprintf (buf
, warning
);
310 gdbtk_two_elem_cmd ("gdbtk_tcl_ignorable_warning", buf
);
316 Tcl_Eval (gdbtk_interp
, "gdbtk_pc_changed");
320 /* This function is called instead of gdb's internal command loop. This is the
321 last chance to do anything before entering the main Tk event loop.
322 At the end of the command, we enter the main loop. */
327 extern GDB_FILE
*instream
;
329 /* We no longer want to use stdin as the command input stream */
332 if (Tcl_Eval (gdbtk_interp
, "gdbtk_tcl_preloop") != TCL_OK
)
336 /* Force errorInfo to be set up propertly. */
337 Tcl_AddErrorInfo (gdbtk_interp
, "");
339 msg
= Tcl_GetVar (gdbtk_interp
, "errorInfo", TCL_GLOBAL_ONLY
);
341 MessageBox (NULL
, msg
, NULL
, MB_OK
| MB_ICONERROR
| MB_TASKMODAL
);
343 fputs_unfiltered (msg
, gdb_stderr
);
354 /* Come here when there is activity on the X file descriptor. */
360 static int in_x_event
= 0;
361 static Tcl_Obj
*varname
= NULL
;
362 if (in_x_event
|| in_fputs
)
372 /* Process pending events */
373 while (Tcl_DoOneEvent (TCL_DONT_WAIT
|TCL_ALL_EVENTS
) != 0)
376 if (load_in_progress
)
381 Tcl_Obj
*varnamestrobj
= Tcl_NewStringObj("download_cancel_ok",-1);
382 varname
= Tcl_ObjGetVar2(gdbtk_interp
,varnamestrobj
,NULL
,TCL_GLOBAL_ONLY
);
384 if ((Tcl_GetIntFromObj(gdbtk_interp
,varname
,&val
) == TCL_OK
) && val
)
400 #ifdef ANSI_PROTOTYPES
401 gdbtk_readline_begin (char *format
, ...)
403 gdbtk_readline_begin (va_alist
)
410 #ifdef ANSI_PROTOTYPES
411 va_start (args
, format
);
415 format
= va_arg (args
, char *);
418 vsprintf (buf
, format
, args
);
419 gdbtk_two_elem_cmd ("gdbtk_tcl_readline_begin", buf
);
424 gdbtk_readline (prompt
)
433 result
= gdbtk_two_elem_cmd ("gdbtk_tcl_readline", prompt
);
435 if (result
== TCL_OK
)
437 return (strdup (gdbtk_interp
-> result
));
441 gdbtk_fputs (gdbtk_interp
-> result
, gdb_stdout
);
442 gdbtk_fputs ("\n", gdb_stdout
);
448 gdbtk_readline_end ()
450 Tcl_Eval (gdbtk_interp
, "gdbtk_tcl_readline_end");
454 gdbtk_call_command (cmdblk
, arg
, from_tty
)
455 struct cmd_list_element
*cmdblk
;
460 if (cmdblk
->class == class_run
|| cmdblk
->class == class_trace
)
463 /* HACK! HACK! This is to get the gui to update the tstart/tstop
464 button only incase of tstart/tstop commands issued from the console
465 We don't want to update the src window, so we need to have specific
466 procedures to do tstart and tstop
467 Unfortunately this will not display errors from tstart or tstop in the
468 console window itself, but as dialogs.*/
470 if (!strcmp(cmdblk
->name
, "tstart") && !No_Update
)
472 Tcl_Eval (gdbtk_interp
, "gdbtk_tcl_tstart");
473 (*cmdblk
->function
.cfunc
)(arg
, from_tty
);
475 else if (!strcmp(cmdblk
->name
, "tstop") && !No_Update
)
477 Tcl_Eval (gdbtk_interp
, "gdbtk_tcl_tstop");
478 (*cmdblk
->function
.cfunc
)(arg
, from_tty
);
485 Tcl_Eval (gdbtk_interp
, "gdbtk_tcl_busy");
486 (*cmdblk
->function
.cfunc
)(arg
, from_tty
);
489 Tcl_Eval (gdbtk_interp
, "gdbtk_tcl_idle");
493 (*cmdblk
->function
.cfunc
)(arg
, from_tty
);
496 /* The next three functions use breakpoint_notify to allow the GUI
497 * to handle creating, deleting and modifying breakpoints. These three
498 * functions are put into the appropriate gdb hooks in gdbtk_init.
502 gdbtk_create_breakpoint(b
)
503 struct breakpoint
*b
;
505 breakpoint_notify (b
, "create");
509 gdbtk_delete_breakpoint(b
)
510 struct breakpoint
*b
;
512 breakpoint_notify (b
, "delete");
516 gdbtk_modify_breakpoint(b
)
517 struct breakpoint
*b
;
519 breakpoint_notify (b
, "modify");
522 /* This is the generic function for handling changes in
523 * a breakpoint. It routes the information to the Tcl
524 * command "gdbtk_tcl_breakpoint" in the form:
525 * gdbtk_tcl_breakpoint action b_number b_address b_line b_file
526 * On error, the error string is written to gdb_stdout.
530 breakpoint_notify(b
, action
)
531 struct breakpoint
*b
;
536 struct symtab_and_line sal
;
539 if (b
->type
!= bp_breakpoint
)
542 /* We ensure that ACTION contains no special Tcl characters, so we
544 sal
= find_pc_line (b
->address
, 0);
545 filename
= symtab_to_filename (sal
.symtab
);
546 if (filename
== NULL
)
549 sprintf (buf
, "gdbtk_tcl_breakpoint %s %d 0x%lx %d {%s}", action
, b
->number
,
550 (long)b
->address
, b
->line_number
, filename
);
552 v
= Tcl_Eval (gdbtk_interp
, buf
);
556 gdbtk_fputs (Tcl_GetStringResult (gdbtk_interp
), gdb_stdout
);
557 gdbtk_fputs ("\n", gdb_stdout
);
562 gdbtk_load_hash (section
, num
)
567 sprintf (buf
, "download_hash %s %ld", section
, num
);
568 Tcl_Eval (gdbtk_interp
, buf
);
569 return atoi (gdbtk_interp
->result
);
573 /* This hook is called whenever we are ready to load a symbol file so that
574 the UI can notify the user... */
576 gdbtk_pre_add_symbol (name
)
580 gdbtk_two_elem_cmd("gdbtk_tcl_pre_add_symbol", name
);
584 /* This hook is called whenever we finish loading a symbol file. */
586 gdbtk_post_add_symbol ()
588 Tcl_Eval (gdbtk_interp
, "gdbtk_tcl_post_add_symbol");
591 /* This hook function is called whenever we want to wait for the
595 gdbtk_wait (pid
, ourstatus
)
597 struct target_waitstatus
*ourstatus
;
599 /* Don't run the timer on various targets... */
600 if (!STREQ (target_shortname
, "ice"))
601 gdbtk_start_timer ();
602 pid
= target_wait (pid
, ourstatus
);
608 * This handles all queries from gdb.
609 * The first argument is a printf style format statement, the rest are its
610 * arguments. The resultant formatted string is passed to the Tcl function
612 * It returns the users response to the query, as well as putting the value
613 * in the result field of the Tcl interpreter.
617 gdbtk_query (query
, args
)
624 vsprintf (buf
, query
, args
);
625 gdbtk_two_elem_cmd ("gdbtk_tcl_query", buf
);
627 val
= atol (gdbtk_interp
->result
);
633 gdbtk_print_frame_info (s
, line
, stopline
, noerror
)
639 current_source_symtab
= s
;
640 current_source_line
= line
;
644 gdbtk_create_tracepoint (tp
)
645 struct tracepoint
*tp
;
647 tracepoint_notify (tp
, "create");
651 gdbtk_delete_tracepoint (tp
)
652 struct tracepoint
*tp
;
654 tracepoint_notify (tp
, "delete");
658 gdbtk_modify_tracepoint (tp
)
659 struct tracepoint
*tp
;
661 tracepoint_notify (tp
, "modify");
665 tracepoint_notify(tp
, action
)
666 struct tracepoint
*tp
;
671 struct symtab_and_line sal
;
674 /* We ensure that ACTION contains no special Tcl characters, so we
676 sal
= find_pc_line (tp
->address
, 0);
678 filename
= symtab_to_filename (sal
.symtab
);
679 if (filename
== NULL
)
681 sprintf (buf
, "gdbtk_tcl_tracepoint %s %d 0x%lx %d {%s} %d", action
, tp
->number
,
682 (long)tp
->address
, sal
.line
, filename
, tp
->pass_count
);
684 v
= Tcl_Eval (gdbtk_interp
, buf
);
688 gdbtk_fputs (gdbtk_interp
->result
, gdb_stdout
);
689 gdbtk_fputs ("\n", gdb_stdout
);
694 gdbtk_selected_frame_changed (level
)
697 Tcl_UpdateLinkedVar (gdbtk_interp
, "gdb_selected_frame_level");
700 /* Called when the current thread changes. */
701 /* gdb_context is linked to the tcl variable "gdb_context_id" */
703 gdbtk_context_change (num
)
709 /* Called from exec_file_command */
711 gdbtk_exec_file_changed (filename
)
714 gdbtk_two_elem_cmd ("gdbtk_tcl_exec_file_changed", filename
);