1 /* Tracing functionality for remote targets in custom GDB protocol
3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
4 2007, 2008 Free Software Foundation, Inc.
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 3 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, see <http://www.gnu.org/licenses/>. */
25 #include "expression.h"
30 #include "gdb_string.h"
32 #include "tracepoint.h"
36 #include "completer.h"
37 #include "gdb-events.h"
39 #include "dictionary.h"
44 /* readline include files */
45 #include "readline/readline.h"
46 #include "readline/history.h"
48 /* readline defines this. */
55 /* Maximum length of an agent aexpression.
56 This accounts for the fact that packets are limited to 400 bytes
57 (which includes everything -- including the checksum), and assumes
58 the worst case of maximum length for each of the pieces of a
61 NOTE: expressions get mem2hex'ed otherwise this would be twice as
62 large. (400 - 31)/2 == 184 */
63 #define MAX_AGENT_EXPR_LEN 184
66 extern void (*deprecated_readline_begin_hook
) (char *, ...);
67 extern char *(*deprecated_readline_hook
) (char *);
68 extern void (*deprecated_readline_end_hook
) (void);
69 extern int addressprint
; /* Print machine addresses? */
71 /* GDB commands implemented in other modules:
74 extern void output_command (char *, int);
79 This module defines the following debugger commands:
80 trace : set a tracepoint on a function, line, or address.
81 info trace : list all debugger-defined tracepoints.
82 delete trace : delete one or more tracepoints.
83 enable trace : enable one or more tracepoints.
84 disable trace : disable one or more tracepoints.
85 actions : specify actions to be taken at a tracepoint.
86 passcount : specify a pass count for a tracepoint.
87 tstart : start a trace experiment.
88 tstop : stop a trace experiment.
89 tstatus : query the status of a trace experiment.
90 tfind : find a trace frame in the trace buffer.
91 tdump : print everything collected at the current tracepoint.
92 save-tracepoints : write tracepoint setup into a file.
94 This module defines the following user-visible debugger variables:
95 $trace_frame : sequence number of trace frame currently being debugged.
96 $trace_line : source line of trace frame currently being debugged.
97 $trace_file : source file of trace frame currently being debugged.
98 $tracepoint : tracepoint number of trace frame currently being debugged.
102 /* ======= Important global variables: ======= */
104 /* Chain of all tracepoints defined. */
105 struct tracepoint
*tracepoint_chain
;
107 /* Number of last tracepoint made. */
108 static int tracepoint_count
;
110 /* Number of last traceframe collected. */
111 static int traceframe_number
;
113 /* Tracepoint for last traceframe collected. */
114 static int tracepoint_number
;
116 /* Symbol for function for last traceframe collected */
117 static struct symbol
*traceframe_fun
;
119 /* Symtab and line for last traceframe collected */
120 static struct symtab_and_line traceframe_sal
;
122 /* Tracing command lists */
123 static struct cmd_list_element
*tfindlist
;
125 /* ======= Important command functions: ======= */
126 static void trace_command (char *, int);
127 static void tracepoints_info (char *, int);
128 static void delete_trace_command (char *, int);
129 static void enable_trace_command (char *, int);
130 static void disable_trace_command (char *, int);
131 static void trace_pass_command (char *, int);
132 static void trace_actions_command (char *, int);
133 static void trace_start_command (char *, int);
134 static void trace_stop_command (char *, int);
135 static void trace_status_command (char *, int);
136 static void trace_find_command (char *, int);
137 static void trace_find_pc_command (char *, int);
138 static void trace_find_tracepoint_command (char *, int);
139 static void trace_find_line_command (char *, int);
140 static void trace_find_range_command (char *, int);
141 static void trace_find_outside_command (char *, int);
142 static void tracepoint_save_command (char *, int);
143 static void trace_dump_command (char *, int);
145 /* support routines */
146 static void trace_mention (struct tracepoint
*);
148 struct collection_list
;
149 static void add_aexpr (struct collection_list
*, struct agent_expr
*);
150 static char *mem2hex (gdb_byte
*, char *, int);
151 static void add_register (struct collection_list
*collection
,
153 static struct cleanup
*make_cleanup_free_actions (struct tracepoint
*t
);
154 static void free_actions_list (char **actions_list
);
155 static void free_actions_list_cleanup_wrapper (void *);
157 extern void _initialize_tracepoint (void);
159 /* Utility: returns true if "target remote" */
161 target_is_remote (void)
163 if (current_target
.to_shortname
&&
164 (strcmp (current_target
.to_shortname
, "remote") == 0
165 || strcmp (current_target
.to_shortname
, "extended-remote") == 0))
171 /* Utility: generate error from an incoming stub packet. */
173 trace_error (char *buf
)
176 return; /* not an error msg */
179 case '1': /* malformed packet error */
180 if (*++buf
== '0') /* general case: */
181 error (_("tracepoint.c: error in outgoing packet."));
183 error (_("tracepoint.c: error in outgoing packet at field #%ld."),
184 strtol (buf
, NULL
, 16));
186 error (_("trace API error 0x%s."), ++buf
);
188 error (_("Target returns error code '%s'."), buf
);
192 /* Utility: wait for reply from stub, while accepting "O" packets. */
194 remote_get_noisy_reply (char **buf_p
,
197 do /* Loop on reply from remote stub. */
200 QUIT
; /* allow user to bail out with ^C */
201 getpkt (buf_p
, sizeof_buf
, 0);
204 error (_("Target does not support this command."));
205 else if (buf
[0] == 'E')
207 else if (buf
[0] == 'O' &&
209 remote_console_output (buf
+ 1); /* 'O' message from stub */
211 return buf
; /* here's the actual reply */
216 /* Set tracepoint count to NUM. */
218 set_tracepoint_count (int num
)
220 tracepoint_count
= num
;
221 set_internalvar (lookup_internalvar ("tpnum"),
222 value_from_longest (builtin_type_int
, (LONGEST
) num
));
225 /* Set traceframe number to NUM. */
227 set_traceframe_num (int num
)
229 traceframe_number
= num
;
230 set_internalvar (lookup_internalvar ("trace_frame"),
231 value_from_longest (builtin_type_int
, (LONGEST
) num
));
234 /* Set tracepoint number to NUM. */
236 set_tracepoint_num (int num
)
238 tracepoint_number
= num
;
239 set_internalvar (lookup_internalvar ("tracepoint"),
240 value_from_longest (builtin_type_int
,
244 /* Set externally visible debug variables for querying/printing
245 the traceframe context (line, function, file) */
248 set_traceframe_context (CORE_ADDR trace_pc
)
250 static struct type
*func_string
, *file_string
;
251 static struct type
*func_range
, *file_range
;
252 struct value
*func_val
;
253 struct value
*file_val
;
254 static struct type
*charstar
;
257 if (charstar
== (struct type
*) NULL
)
258 charstar
= lookup_pointer_type (builtin_type_char
);
260 if (trace_pc
== -1) /* Cease debugging any trace buffers. */
263 traceframe_sal
.pc
= traceframe_sal
.line
= 0;
264 traceframe_sal
.symtab
= NULL
;
265 set_internalvar (lookup_internalvar ("trace_func"),
266 value_from_pointer (charstar
, (LONGEST
) 0));
267 set_internalvar (lookup_internalvar ("trace_file"),
268 value_from_pointer (charstar
, (LONGEST
) 0));
269 set_internalvar (lookup_internalvar ("trace_line"),
270 value_from_longest (builtin_type_int
,
275 /* Save as globals for internal use. */
276 traceframe_sal
= find_pc_line (trace_pc
, 0);
277 traceframe_fun
= find_pc_function (trace_pc
);
279 /* Save linenumber as "$trace_line", a debugger variable visible to
281 set_internalvar (lookup_internalvar ("trace_line"),
282 value_from_longest (builtin_type_int
,
283 (LONGEST
) traceframe_sal
.line
));
285 /* Save func name as "$trace_func", a debugger variable visible to
287 if (traceframe_fun
== NULL
||
288 DEPRECATED_SYMBOL_NAME (traceframe_fun
) == NULL
)
289 set_internalvar (lookup_internalvar ("trace_func"),
290 value_from_pointer (charstar
, (LONGEST
) 0));
293 len
= strlen (DEPRECATED_SYMBOL_NAME (traceframe_fun
));
294 func_range
= create_range_type (func_range
,
295 builtin_type_int
, 0, len
- 1);
296 func_string
= create_array_type (func_string
,
297 builtin_type_char
, func_range
);
298 func_val
= allocate_value (func_string
);
299 deprecated_set_value_type (func_val
, func_string
);
300 memcpy (value_contents_raw (func_val
),
301 DEPRECATED_SYMBOL_NAME (traceframe_fun
),
303 deprecated_set_value_modifiable (func_val
, 0);
304 set_internalvar (lookup_internalvar ("trace_func"), func_val
);
307 /* Save file name as "$trace_file", a debugger variable visible to
309 if (traceframe_sal
.symtab
== NULL
||
310 traceframe_sal
.symtab
->filename
== NULL
)
311 set_internalvar (lookup_internalvar ("trace_file"),
312 value_from_pointer (charstar
, (LONGEST
) 0));
315 len
= strlen (traceframe_sal
.symtab
->filename
);
316 file_range
= create_range_type (file_range
,
317 builtin_type_int
, 0, len
- 1);
318 file_string
= create_array_type (file_string
,
319 builtin_type_char
, file_range
);
320 file_val
= allocate_value (file_string
);
321 deprecated_set_value_type (file_val
, file_string
);
322 memcpy (value_contents_raw (file_val
),
323 traceframe_sal
.symtab
->filename
,
325 deprecated_set_value_modifiable (file_val
, 0);
326 set_internalvar (lookup_internalvar ("trace_file"), file_val
);
330 /* Low level routine to set a tracepoint.
331 Returns the tracepoint object so caller can set other things.
332 Does not set the tracepoint number!
333 Does not print anything.
335 ==> This routine should not be called if there is a chance of later
336 error(); otherwise it leaves a bogus tracepoint on the chain.
337 Validate your arguments BEFORE calling this routine! */
339 static struct tracepoint
*
340 set_raw_tracepoint (struct symtab_and_line sal
)
342 struct tracepoint
*t
, *tc
;
343 struct cleanup
*old_chain
;
345 t
= (struct tracepoint
*) xmalloc (sizeof (struct tracepoint
));
346 old_chain
= make_cleanup (xfree
, t
);
347 memset (t
, 0, sizeof (*t
));
349 if (sal
.symtab
== NULL
)
350 t
->source_file
= NULL
;
352 t
->source_file
= savestring (sal
.symtab
->filename
,
353 strlen (sal
.symtab
->filename
));
355 t
->section
= sal
.section
;
356 t
->language
= current_language
->la_language
;
357 t
->input_radix
= input_radix
;
358 t
->line_number
= sal
.line
;
363 t
->addr_string
= NULL
;
365 /* Add this tracepoint to the end of the chain
366 so that a list of tracepoints will come out in order
367 of increasing numbers. */
369 tc
= tracepoint_chain
;
371 tracepoint_chain
= t
;
378 discard_cleanups (old_chain
);
382 /* Set a tracepoint according to ARG (function, linenum or *address). */
384 trace_command (char *arg
, int from_tty
)
386 char **canonical
= (char **) NULL
;
387 struct symtabs_and_lines sals
;
388 struct symtab_and_line sal
;
389 struct tracepoint
*t
;
390 char *addr_start
= 0, *addr_end
= 0;
394 error (_("trace command requires an argument"));
396 if (from_tty
&& info_verbose
)
397 printf_filtered ("TRACE %s\n", arg
);
400 sals
= decode_line_1 (&arg
, 1, (struct symtab
*) NULL
,
401 0, &canonical
, NULL
);
404 return; /* ??? Presumably decode_line_1 has already warned? */
406 /* Resolve all line numbers to PC's */
407 for (i
= 0; i
< sals
.nelts
; i
++)
408 resolve_sal_pc (&sals
.sals
[i
]);
410 /* Now set all the tracepoints. */
411 for (i
= 0; i
< sals
.nelts
; i
++)
415 t
= set_raw_tracepoint (sal
);
416 set_tracepoint_count (tracepoint_count
+ 1);
417 t
->number
= tracepoint_count
;
419 /* If a canonical line spec is needed use that instead of the
421 if (canonical
!= (char **) NULL
&& canonical
[i
] != NULL
)
422 t
->addr_string
= canonical
[i
];
424 t
->addr_string
= savestring (addr_start
, addr_end
- addr_start
);
431 printf_filtered ("Multiple tracepoints were set.\n");
432 printf_filtered ("Use 'delete trace' to delete unwanted tracepoints.\n");
436 /* Tell the user we have just set a tracepoint TP. */
439 trace_mention (struct tracepoint
*tp
)
441 printf_filtered ("Tracepoint %d", tp
->number
);
443 if (addressprint
|| (tp
->source_file
== NULL
))
445 printf_filtered (" at ");
446 printf_filtered ("%s", paddress (tp
->address
));
449 printf_filtered (": file %s, line %d.",
450 tp
->source_file
, tp
->line_number
);
452 printf_filtered ("\n");
455 /* Print information on tracepoint number TPNUM_EXP, or all if
459 tracepoints_info (char *tpnum_exp
, int from_tty
)
461 struct tracepoint
*t
;
462 struct action_line
*action
;
463 int found_a_tracepoint
= 0;
464 char wrap_indent
[80];
469 tpnum
= parse_and_eval_long (tpnum_exp
);
472 if (tpnum
== -1 || tpnum
== t
->number
)
474 extern int addressprint
; /* Print machine addresses? */
476 if (!found_a_tracepoint
++)
478 printf_filtered ("Num Enb ");
481 if (gdbarch_addr_bit (current_gdbarch
) <= 32)
482 printf_filtered ("Address ");
484 printf_filtered ("Address ");
486 printf_filtered ("PassC StepC What\n");
488 strcpy (wrap_indent
, " ");
491 if (gdbarch_addr_bit (current_gdbarch
) <= 32)
492 strcat (wrap_indent
, " ");
494 strcat (wrap_indent
, " ");
497 printf_filtered ("%-3d %-3s ", t
->number
,
498 t
->enabled_p
? "y" : "n");
503 if (gdbarch_addr_bit (current_gdbarch
) <= 32)
504 tmp
= hex_string_custom (t
->address
& (CORE_ADDR
) 0xffffffff,
507 tmp
= hex_string_custom (t
->address
, 16);
509 printf_filtered ("%s ", tmp
);
511 printf_filtered ("%-5d %-5ld ", t
->pass_count
, t
->step_count
);
515 sym
= find_pc_sect_function (t
->address
, t
->section
);
518 fputs_filtered ("in ", gdb_stdout
);
519 fputs_filtered (SYMBOL_PRINT_NAME (sym
), gdb_stdout
);
520 wrap_here (wrap_indent
);
521 fputs_filtered (" at ", gdb_stdout
);
523 fputs_filtered (t
->source_file
, gdb_stdout
);
524 printf_filtered (":%d", t
->line_number
);
527 print_address_symbolic (t
->address
, gdb_stdout
, demangle
, " ");
529 printf_filtered ("\n");
532 printf_filtered (" Actions for tracepoint %d: \n", t
->number
);
533 for (action
= t
->actions
; action
; action
= action
->next
)
535 printf_filtered ("\t%s\n", action
->action
);
539 if (!found_a_tracepoint
)
542 printf_filtered ("No tracepoints.\n");
544 printf_filtered ("No tracepoint number %d.\n", tpnum
);
548 /* Optimization: the code to parse an enable, disable, or delete TP
549 command is virtually identical except for whether it performs an
550 enable, disable, or delete. Therefore I've combined them into one
551 function with an opcode. */
552 enum tracepoint_opcode
559 /* This function implements enable, disable and delete commands. */
561 tracepoint_operation (struct tracepoint
*t
, int from_tty
,
562 enum tracepoint_opcode opcode
)
564 struct tracepoint
*t2
;
566 if (t
== NULL
) /* no tracepoint operand */
573 tracepoint_modify_event (t
->number
);
577 tracepoint_modify_event (t
->number
);
580 if (tracepoint_chain
== t
)
581 tracepoint_chain
= t
->next
;
590 tracepoint_delete_event (t
->number
);
593 xfree (t
->addr_string
);
595 xfree (t
->source_file
);
604 /* Utility: parse a tracepoint number and look it up in the list.
605 If MULTI_P is true, there might be a range of tracepoints in ARG.
606 if OPTIONAL_P is true, then if the argument is missing, the most
607 recent tracepoint (tracepoint_count) is returned. */
609 get_tracepoint_by_number (char **arg
, int multi_p
, int optional_p
)
611 struct tracepoint
*t
;
613 char *instring
= arg
== NULL
? NULL
: *arg
;
615 if (arg
== NULL
|| *arg
== NULL
|| ! **arg
)
618 tpnum
= tracepoint_count
;
620 error_no_arg (_("tracepoint number"));
623 tpnum
= multi_p
? get_number_or_range (arg
) : get_number (arg
);
627 if (instring
&& *instring
)
628 printf_filtered ("bad tracepoint number at or near '%s'\n",
631 printf_filtered ("Tracepoint argument missing and no previous tracepoint\n");
636 if (t
->number
== tpnum
)
641 /* FIXME: if we are in the middle of a range we don't want to give
642 a message. The current interface to get_number_or_range doesn't
643 allow us to discover this. */
644 printf_unfiltered ("No tracepoint number %d.\n", tpnum
);
649 parse a list of tracepoint numbers, and call a func for each. */
651 map_args_over_tracepoints (char *args
, int from_tty
,
652 enum tracepoint_opcode opcode
)
654 struct tracepoint
*t
, *tmp
;
656 if (args
== 0 || *args
== 0) /* do them all */
657 ALL_TRACEPOINTS_SAFE (t
, tmp
)
658 tracepoint_operation (t
, from_tty
, opcode
);
662 QUIT
; /* Give user option to bail out with ^C. */
663 t
= get_tracepoint_by_number (&args
, 1, 0);
664 tracepoint_operation (t
, from_tty
, opcode
);
665 while (*args
== ' ' || *args
== '\t')
670 /* The 'enable trace' command enables tracepoints.
671 Not supported by all targets. */
673 enable_trace_command (char *args
, int from_tty
)
676 map_args_over_tracepoints (args
, from_tty
, enable_op
);
679 /* The 'disable trace' command disables tracepoints.
680 Not supported by all targets. */
682 disable_trace_command (char *args
, int from_tty
)
685 map_args_over_tracepoints (args
, from_tty
, disable_op
);
688 /* Remove a tracepoint (or all if no argument) */
690 delete_trace_command (char *args
, int from_tty
)
693 if (!args
|| !*args
) /* No args implies all tracepoints; */
694 if (from_tty
) /* confirm only if from_tty... */
695 if (tracepoint_chain
) /* and if there are tracepoints to
697 if (!query ("Delete all tracepoints? "))
700 map_args_over_tracepoints (args
, from_tty
, delete_op
);
703 /* Set passcount for tracepoint.
705 First command argument is passcount, second is tracepoint number.
706 If tracepoint number omitted, apply to most recently defined.
707 Also accepts special argument "all". */
710 trace_pass_command (char *args
, int from_tty
)
712 struct tracepoint
*t1
= (struct tracepoint
*) -1, *t2
;
716 if (args
== 0 || *args
== 0)
717 error (_("passcount command requires an argument (count + optional TP num)"));
719 count
= strtoul (args
, &args
, 10); /* Count comes first, then TP num. */
721 while (*args
&& isspace ((int) *args
))
724 if (*args
&& strncasecmp (args
, "all", 3) == 0)
726 args
+= 3; /* Skip special argument "all". */
729 error (_("Junk at end of arguments."));
732 t1
= get_tracepoint_by_number (&args
, 1, 1);
739 if (t1
== (struct tracepoint
*) -1 || t1
== t2
)
741 t2
->pass_count
= count
;
742 tracepoint_modify_event (t2
->number
);
744 printf_filtered ("Setting tracepoint %d's passcount to %d\n",
748 t1
= get_tracepoint_by_number (&args
, 1, 0);
754 /* ACTIONS functions: */
756 /* Prototypes for action-parsing utility commands */
757 static void read_actions (struct tracepoint
*);
759 /* The three functions:
760 collect_pseudocommand,
761 while_stepping_pseudocommand, and
762 end_actions_pseudocommand
763 are placeholders for "commands" that are actually ONLY to be used
764 within a tracepoint action list. If the actual function is ever called,
765 it means that somebody issued the "command" at the top level,
766 which is always an error. */
769 end_actions_pseudocommand (char *args
, int from_tty
)
771 error (_("This command cannot be used at the top level."));
775 while_stepping_pseudocommand (char *args
, int from_tty
)
777 error (_("This command can only be used in a tracepoint actions list."));
781 collect_pseudocommand (char *args
, int from_tty
)
783 error (_("This command can only be used in a tracepoint actions list."));
786 /* Enter a list of actions for a tracepoint. */
788 trace_actions_command (char *args
, int from_tty
)
790 struct tracepoint
*t
;
792 char *end_msg
= "End with a line saying just \"end\".";
794 t
= get_tracepoint_by_number (&args
, 0, 1);
797 sprintf (tmpbuf
, "Enter actions for tracepoint %d, one per line.",
802 if (deprecated_readline_begin_hook
)
803 (*deprecated_readline_begin_hook
) ("%s %s\n", tmpbuf
, end_msg
);
804 else if (input_from_terminal_p ())
805 printf_filtered ("%s\n%s\n", tmpbuf
, end_msg
);
809 t
->step_count
= 0; /* read_actions may set this */
812 if (deprecated_readline_end_hook
)
813 (*deprecated_readline_end_hook
) ();
814 /* tracepoints_changed () */
816 /* else just return */
819 /* worker function */
821 read_actions (struct tracepoint
*t
)
824 char *prompt1
= "> ", *prompt2
= " > ";
825 char *prompt
= prompt1
;
826 enum actionline_type linetype
;
827 extern FILE *instream
;
828 struct action_line
*next
= NULL
, *temp
;
829 struct cleanup
*old_chain
;
831 /* Control-C quits instantly if typed while in this loop
832 since it should not wait until the user types a newline. */
834 /* FIXME: kettenis/20010823: Something is wrong here. In this file
835 STOP_SIGNAL is never defined. So this code has been left out, at
836 least for quite a while now. Replacing STOP_SIGNAL with SIGTSTP
837 leads to compilation failures since the variable job_control
838 isn't declared. Leave this alone for now. */
841 signal (STOP_SIGNAL
, handle_stop_sig
);
843 old_chain
= make_cleanup_free_actions (t
);
846 /* Make sure that all output has been output. Some machines may
847 let you get away with leaving out some of the gdb_flush, but
850 gdb_flush (gdb_stdout
);
851 gdb_flush (gdb_stderr
);
853 if (deprecated_readline_hook
&& instream
== NULL
)
854 line
= (*deprecated_readline_hook
) (prompt
);
855 else if (instream
== stdin
&& ISATTY (instream
))
857 line
= gdb_readline_wrapper (prompt
);
858 if (line
&& *line
) /* add it to command history */
862 line
= gdb_readline (0);
866 line
= xstrdup ("end");
867 printf_filtered ("end\n");
870 linetype
= validate_actionline (&line
, t
);
871 if (linetype
== BADLINE
)
872 continue; /* already warned -- collect another line */
874 temp
= xmalloc (sizeof (struct action_line
));
878 if (next
== NULL
) /* first action for this tracepoint? */
879 t
->actions
= next
= temp
;
886 if (linetype
== STEPPING
) /* begin "while-stepping" */
888 if (prompt
== prompt2
)
890 warning (_("Already processing 'while-stepping'"));
894 prompt
= prompt2
; /* change prompt for stepping actions */
896 else if (linetype
== END
)
898 if (prompt
== prompt2
)
900 prompt
= prompt1
; /* end of single-stepping actions */
903 { /* end of actions */
904 if (t
->actions
->next
== NULL
)
906 /* An "end" all by itself with no other actions
907 means this tracepoint has no actions.
908 Discard empty list. */
917 signal (STOP_SIGNAL
, SIG_DFL
);
920 discard_cleanups (old_chain
);
923 /* worker function */
925 validate_actionline (char **line
, struct tracepoint
*t
)
927 struct cmd_list_element
*c
;
928 struct expression
*exp
= NULL
;
929 struct cleanup
*old_chain
= NULL
;
932 /* if EOF is typed, *line is NULL */
936 for (p
= *line
; isspace ((int) *p
);)
939 /* Symbol lookup etc. */
940 if (*p
== '\0') /* empty line: just prompt for another line. */
943 if (*p
== '#') /* comment line */
946 c
= lookup_cmd (&p
, cmdlist
, "", -1, 1);
949 warning (_("'%s' is not an action that I know, or is ambiguous."),
954 if (cmd_cfunc_eq (c
, collect_pseudocommand
))
956 struct agent_expr
*aexpr
;
957 struct agent_reqs areqs
;
960 { /* repeat over a comma-separated list */
961 QUIT
; /* allow user to bail out with ^C */
962 while (isspace ((int) *p
))
965 if (*p
== '$') /* look for special pseudo-symbols */
967 if ((0 == strncasecmp ("reg", p
+ 1, 3)) ||
968 (0 == strncasecmp ("arg", p
+ 1, 3)) ||
969 (0 == strncasecmp ("loc", p
+ 1, 3)))
974 /* else fall thru, treat p as an expression and parse it! */
976 exp
= parse_exp_1 (&p
, block_for_pc (t
->address
), 1);
977 old_chain
= make_cleanup (free_current_contents
, &exp
);
979 if (exp
->elts
[0].opcode
== OP_VAR_VALUE
)
981 if (SYMBOL_CLASS (exp
->elts
[2].symbol
) == LOC_CONST
)
983 warning (_("constant %s (value %ld) will not be collected."),
984 DEPRECATED_SYMBOL_NAME (exp
->elts
[2].symbol
),
985 SYMBOL_VALUE (exp
->elts
[2].symbol
));
988 else if (SYMBOL_CLASS (exp
->elts
[2].symbol
) == LOC_OPTIMIZED_OUT
)
990 warning (_("%s is optimized away and cannot be collected."),
991 DEPRECATED_SYMBOL_NAME (exp
->elts
[2].symbol
));
996 /* We have something to collect, make sure that the expr to
997 bytecode translator can handle it and that it's not too
999 aexpr
= gen_trace_for_expr (t
->address
, exp
);
1000 make_cleanup_free_agent_expr (aexpr
);
1002 if (aexpr
->len
> MAX_AGENT_EXPR_LEN
)
1003 error (_("expression too complicated, try simplifying"));
1005 ax_reqs (aexpr
, &areqs
);
1006 (void) make_cleanup (xfree
, areqs
.reg_mask
);
1008 if (areqs
.flaw
!= agent_flaw_none
)
1009 error (_("malformed expression"));
1011 if (areqs
.min_height
< 0)
1012 error (_("gdb: Internal error: expression has min height < 0"));
1014 if (areqs
.max_height
> 20)
1015 error (_("expression too complicated, try simplifying"));
1017 do_cleanups (old_chain
);
1019 while (p
&& *p
++ == ',');
1022 else if (cmd_cfunc_eq (c
, while_stepping_pseudocommand
))
1024 char *steparg
; /* in case warning is necessary */
1026 while (isspace ((int) *p
))
1031 (t
->step_count
= strtol (p
, &p
, 0)) == 0)
1033 warning (_("'%s': bad step-count; command ignored."), *line
);
1038 else if (cmd_cfunc_eq (c
, end_actions_pseudocommand
))
1042 warning (_("'%s' is not a supported tracepoint action."), *line
);
1047 /* worker function */
1049 free_actions (struct tracepoint
*t
)
1051 struct action_line
*line
, *next
;
1053 for (line
= t
->actions
; line
; line
= next
)
1057 xfree (line
->action
);
1064 do_free_actions_cleanup (void *t
)
1069 static struct cleanup
*
1070 make_cleanup_free_actions (struct tracepoint
*t
)
1072 return make_cleanup (do_free_actions_cleanup
, t
);
1076 memrange_absolute
= -1
1081 int type
; /* memrange_absolute for absolute memory range,
1082 else basereg number */
1083 bfd_signed_vma start
;
1087 struct collection_list
1089 unsigned char regs_mask
[32]; /* room for up to 256 regs */
1092 struct memrange
*list
;
1093 long aexpr_listsize
; /* size of array pointed to by expr_list elt */
1094 long next_aexpr_elt
;
1095 struct agent_expr
**aexpr_list
;
1098 tracepoint_list
, stepping_list
;
1100 /* MEMRANGE functions: */
1102 static int memrange_cmp (const void *, const void *);
1104 /* compare memranges for qsort */
1106 memrange_cmp (const void *va
, const void *vb
)
1108 const struct memrange
*a
= va
, *b
= vb
;
1110 if (a
->type
< b
->type
)
1112 if (a
->type
> b
->type
)
1114 if (a
->type
== memrange_absolute
)
1116 if ((bfd_vma
) a
->start
< (bfd_vma
) b
->start
)
1118 if ((bfd_vma
) a
->start
> (bfd_vma
) b
->start
)
1123 if (a
->start
< b
->start
)
1125 if (a
->start
> b
->start
)
1131 /* Sort the memrange list using qsort, and merge adjacent memranges. */
1133 memrange_sortmerge (struct collection_list
*memranges
)
1137 qsort (memranges
->list
, memranges
->next_memrange
,
1138 sizeof (struct memrange
), memrange_cmp
);
1139 if (memranges
->next_memrange
> 0)
1141 for (a
= 0, b
= 1; b
< memranges
->next_memrange
; b
++)
1143 if (memranges
->list
[a
].type
== memranges
->list
[b
].type
&&
1144 memranges
->list
[b
].start
- memranges
->list
[a
].end
<=
1147 /* memrange b starts before memrange a ends; merge them. */
1148 if (memranges
->list
[b
].end
> memranges
->list
[a
].end
)
1149 memranges
->list
[a
].end
= memranges
->list
[b
].end
;
1150 continue; /* next b, same a */
1154 memcpy (&memranges
->list
[a
], &memranges
->list
[b
],
1155 sizeof (struct memrange
));
1157 memranges
->next_memrange
= a
+ 1;
1161 /* Add a register to a collection list. */
1163 add_register (struct collection_list
*collection
, unsigned int regno
)
1166 printf_filtered ("collect register %d\n", regno
);
1167 if (regno
>= (8 * sizeof (collection
->regs_mask
)))
1168 error (_("Internal: register number %d too large for tracepoint"),
1170 collection
->regs_mask
[regno
/ 8] |= 1 << (regno
% 8);
1173 /* Add a memrange to a collection list */
1175 add_memrange (struct collection_list
*memranges
,
1176 int type
, bfd_signed_vma base
,
1181 printf_filtered ("(%d,", type
);
1183 printf_filtered (",%ld)\n", len
);
1186 /* type: memrange_absolute == memory, other n == basereg */
1187 memranges
->list
[memranges
->next_memrange
].type
= type
;
1188 /* base: addr if memory, offset if reg relative. */
1189 memranges
->list
[memranges
->next_memrange
].start
= base
;
1190 /* len: we actually save end (base + len) for convenience */
1191 memranges
->list
[memranges
->next_memrange
].end
= base
+ len
;
1192 memranges
->next_memrange
++;
1193 if (memranges
->next_memrange
>= memranges
->listsize
)
1195 memranges
->listsize
*= 2;
1196 memranges
->list
= xrealloc (memranges
->list
,
1197 memranges
->listsize
);
1200 if (type
!= memrange_absolute
) /* Better collect the base register! */
1201 add_register (memranges
, type
);
1204 /* Add a symbol to a collection list. */
1206 collect_symbol (struct collection_list
*collect
,
1208 long frame_regno
, long frame_offset
)
1212 bfd_signed_vma offset
;
1214 len
= TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym
)));
1215 switch (SYMBOL_CLASS (sym
))
1218 printf_filtered ("%s: don't know symbol class %d\n",
1219 DEPRECATED_SYMBOL_NAME (sym
),
1220 SYMBOL_CLASS (sym
));
1223 printf_filtered ("constant %s (value %ld) will not be collected.\n",
1224 DEPRECATED_SYMBOL_NAME (sym
), SYMBOL_VALUE (sym
));
1227 offset
= SYMBOL_VALUE_ADDRESS (sym
);
1232 sprintf_vma (tmp
, offset
);
1233 printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n",
1234 DEPRECATED_SYMBOL_NAME (sym
), len
,
1237 add_memrange (collect
, memrange_absolute
, offset
, len
);
1240 reg
= SYMBOL_VALUE (sym
);
1242 printf_filtered ("LOC_REG[parm] %s: ",
1243 DEPRECATED_SYMBOL_NAME (sym
));
1244 add_register (collect
, reg
);
1245 /* Check for doubles stored in two registers. */
1246 /* FIXME: how about larger types stored in 3 or more regs? */
1247 if (TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_FLT
&&
1248 len
> register_size (current_gdbarch
, reg
))
1249 add_register (collect
, reg
+ 1);
1252 printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n");
1253 printf_filtered (" (will not collect %s)\n",
1254 DEPRECATED_SYMBOL_NAME (sym
));
1258 offset
= frame_offset
+ SYMBOL_VALUE (sym
);
1261 printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ",
1262 DEPRECATED_SYMBOL_NAME (sym
), len
);
1263 printf_vma (offset
);
1264 printf_filtered (" from frame ptr reg %d\n", reg
);
1266 add_memrange (collect
, reg
, offset
, len
);
1268 case LOC_REGPARM_ADDR
:
1269 reg
= SYMBOL_VALUE (sym
);
1273 printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset ",
1274 DEPRECATED_SYMBOL_NAME (sym
), len
);
1275 printf_vma (offset
);
1276 printf_filtered (" from reg %d\n", reg
);
1278 add_memrange (collect
, reg
, offset
, len
);
1282 offset
= frame_offset
+ SYMBOL_VALUE (sym
);
1285 printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ",
1286 DEPRECATED_SYMBOL_NAME (sym
), len
);
1287 printf_vma (offset
);
1288 printf_filtered (" from frame ptr reg %d\n", reg
);
1290 add_memrange (collect
, reg
, offset
, len
);
1292 case LOC_UNRESOLVED
:
1293 printf_filtered ("Don't know LOC_UNRESOLVED %s\n",
1294 DEPRECATED_SYMBOL_NAME (sym
));
1296 case LOC_OPTIMIZED_OUT
:
1297 printf_filtered ("%s has been optimized out of existence.\n",
1298 DEPRECATED_SYMBOL_NAME (sym
));
1303 /* Add all locals (or args) symbols to collection list */
1305 add_local_symbols (struct collection_list
*collect
, CORE_ADDR pc
,
1306 long frame_regno
, long frame_offset
, int type
)
1309 struct block
*block
;
1310 struct dict_iterator iter
;
1313 block
= block_for_pc (pc
);
1316 QUIT
; /* allow user to bail out with ^C */
1317 ALL_BLOCK_SYMBOLS (block
, iter
, sym
)
1319 if (SYMBOL_IS_ARGUMENT (sym
)
1320 ? type
== 'A' /* collecting Arguments */
1321 : type
== 'L') /* collecting Locals */
1324 collect_symbol (collect
, sym
, frame_regno
,
1328 if (BLOCK_FUNCTION (block
))
1331 block
= BLOCK_SUPERBLOCK (block
);
1334 warning (_("No %s found in scope."),
1335 type
== 'L' ? "locals" : "args");
1338 /* worker function */
1340 clear_collection_list (struct collection_list
*list
)
1344 list
->next_memrange
= 0;
1345 for (ndx
= 0; ndx
< list
->next_aexpr_elt
; ndx
++)
1347 free_agent_expr (list
->aexpr_list
[ndx
]);
1348 list
->aexpr_list
[ndx
] = NULL
;
1350 list
->next_aexpr_elt
= 0;
1351 memset (list
->regs_mask
, 0, sizeof (list
->regs_mask
));
1354 /* reduce a collection list to string form (for gdb protocol) */
1356 stringify_collection_list (struct collection_list
*list
, char *string
)
1358 char temp_buf
[2048];
1362 char *(*str_list
)[];
1366 count
= 1 + list
->next_memrange
+ list
->next_aexpr_elt
+ 1;
1367 str_list
= (char *(*)[]) xmalloc (count
* sizeof (char *));
1369 for (i
= sizeof (list
->regs_mask
) - 1; i
> 0; i
--)
1370 if (list
->regs_mask
[i
] != 0) /* skip leading zeroes in regs_mask */
1372 if (list
->regs_mask
[i
] != 0) /* prepare to send regs_mask to the stub */
1375 printf_filtered ("\nCollecting registers (mask): 0x");
1380 QUIT
; /* allow user to bail out with ^C */
1382 printf_filtered ("%02X", list
->regs_mask
[i
]);
1383 sprintf (end
, "%02X", list
->regs_mask
[i
]);
1386 (*str_list
)[ndx
] = savestring (temp_buf
, end
- temp_buf
);
1390 printf_filtered ("\n");
1391 if (list
->next_memrange
> 0 && info_verbose
)
1392 printf_filtered ("Collecting memranges: \n");
1393 for (i
= 0, count
= 0, end
= temp_buf
; i
< list
->next_memrange
; i
++)
1395 QUIT
; /* allow user to bail out with ^C */
1396 sprintf_vma (tmp2
, list
->list
[i
].start
);
1399 printf_filtered ("(%d, %s, %ld)\n",
1402 (long) (list
->list
[i
].end
- list
->list
[i
].start
));
1404 if (count
+ 27 > MAX_AGENT_EXPR_LEN
)
1406 (*str_list
)[ndx
] = savestring (temp_buf
, count
);
1413 bfd_signed_vma length
= list
->list
[i
].end
- list
->list
[i
].start
;
1415 /* The "%X" conversion specifier expects an unsigned argument,
1416 so passing -1 (memrange_absolute) to it directly gives you
1417 "FFFFFFFF" (or more, depending on sizeof (unsigned)).
1419 if (list
->list
[i
].type
== memrange_absolute
)
1420 sprintf (end
, "M-1,%s,%lX", tmp2
, (long) length
);
1422 sprintf (end
, "M%X,%s,%lX", list
->list
[i
].type
, tmp2
, (long) length
);
1425 count
+= strlen (end
);
1426 end
= temp_buf
+ count
;
1429 for (i
= 0; i
< list
->next_aexpr_elt
; i
++)
1431 QUIT
; /* allow user to bail out with ^C */
1432 if ((count
+ 10 + 2 * list
->aexpr_list
[i
]->len
) > MAX_AGENT_EXPR_LEN
)
1434 (*str_list
)[ndx
] = savestring (temp_buf
, count
);
1439 sprintf (end
, "X%08X,", list
->aexpr_list
[i
]->len
);
1440 end
+= 10; /* 'X' + 8 hex digits + ',' */
1443 end
= mem2hex (list
->aexpr_list
[i
]->buf
,
1444 end
, list
->aexpr_list
[i
]->len
);
1445 count
+= 2 * list
->aexpr_list
[i
]->len
;
1450 (*str_list
)[ndx
] = savestring (temp_buf
, count
);
1455 (*str_list
)[ndx
] = NULL
;
1467 free_actions_list_cleanup_wrapper (void *al
)
1469 free_actions_list (al
);
1473 free_actions_list (char **actions_list
)
1477 if (actions_list
== 0)
1480 for (ndx
= 0; actions_list
[ndx
]; ndx
++)
1481 xfree (actions_list
[ndx
]);
1483 xfree (actions_list
);
1486 /* Render all actions into gdb protocol. */
1488 encode_actions (struct tracepoint
*t
, char ***tdp_actions
,
1489 char ***stepping_actions
)
1491 static char tdp_buff
[2048], step_buff
[2048];
1493 struct expression
*exp
= NULL
;
1494 struct action_line
*action
;
1496 struct value
*tempval
;
1497 struct collection_list
*collect
;
1498 struct cmd_list_element
*cmd
;
1499 struct agent_expr
*aexpr
;
1501 LONGEST frame_offset
;
1504 clear_collection_list (&tracepoint_list
);
1505 clear_collection_list (&stepping_list
);
1506 collect
= &tracepoint_list
;
1508 *tdp_actions
= NULL
;
1509 *stepping_actions
= NULL
;
1511 gdbarch_virtual_frame_pointer (current_gdbarch
,
1512 t
->address
, &frame_reg
, &frame_offset
);
1514 for (action
= t
->actions
; action
; action
= action
->next
)
1516 QUIT
; /* allow user to bail out with ^C */
1517 action_exp
= action
->action
;
1518 while (isspace ((int) *action_exp
))
1521 if (*action_exp
== '#') /* comment line */
1524 cmd
= lookup_cmd (&action_exp
, cmdlist
, "", -1, 1);
1526 error (_("Bad action list item: %s"), action_exp
);
1528 if (cmd_cfunc_eq (cmd
, collect_pseudocommand
))
1531 { /* repeat over a comma-separated list */
1532 QUIT
; /* allow user to bail out with ^C */
1533 while (isspace ((int) *action_exp
))
1536 if (0 == strncasecmp ("$reg", action_exp
, 4))
1538 for (i
= 0; i
< gdbarch_num_regs (current_gdbarch
); i
++)
1539 add_register (collect
, i
);
1540 action_exp
= strchr (action_exp
, ','); /* more? */
1542 else if (0 == strncasecmp ("$arg", action_exp
, 4))
1544 add_local_symbols (collect
,
1549 action_exp
= strchr (action_exp
, ','); /* more? */
1551 else if (0 == strncasecmp ("$loc", action_exp
, 4))
1553 add_local_symbols (collect
,
1558 action_exp
= strchr (action_exp
, ','); /* more? */
1562 unsigned long addr
, len
;
1563 struct cleanup
*old_chain
= NULL
;
1564 struct cleanup
*old_chain1
= NULL
;
1565 struct agent_reqs areqs
;
1567 exp
= parse_exp_1 (&action_exp
,
1568 block_for_pc (t
->address
), 1);
1569 old_chain
= make_cleanup (free_current_contents
, &exp
);
1571 switch (exp
->elts
[0].opcode
)
1575 const char *name
= &exp
->elts
[2].string
;
1577 i
= frame_map_name_to_regnum (deprecated_safe_get_selected_frame (),
1578 name
, strlen (name
));
1580 internal_error (__FILE__
, __LINE__
,
1581 _("Register $%s not available"),
1584 printf_filtered ("OP_REGISTER: ");
1585 add_register (collect
, i
);
1590 /* safe because we know it's a simple expression */
1591 tempval
= evaluate_expression (exp
);
1592 addr
= VALUE_ADDRESS (tempval
) + value_offset (tempval
);
1593 len
= TYPE_LENGTH (check_typedef (exp
->elts
[1].type
));
1594 add_memrange (collect
, memrange_absolute
, addr
, len
);
1598 collect_symbol (collect
,
1599 exp
->elts
[2].symbol
,
1604 default: /* full-fledged expression */
1605 aexpr
= gen_trace_for_expr (t
->address
, exp
);
1607 old_chain1
= make_cleanup_free_agent_expr (aexpr
);
1609 ax_reqs (aexpr
, &areqs
);
1610 if (areqs
.flaw
!= agent_flaw_none
)
1611 error (_("malformed expression"));
1613 if (areqs
.min_height
< 0)
1614 error (_("gdb: Internal error: expression has min height < 0"));
1615 if (areqs
.max_height
> 20)
1616 error (_("expression too complicated, try simplifying"));
1618 discard_cleanups (old_chain1
);
1619 add_aexpr (collect
, aexpr
);
1621 /* take care of the registers */
1622 if (areqs
.reg_mask_len
> 0)
1627 for (ndx1
= 0; ndx1
< areqs
.reg_mask_len
; ndx1
++)
1629 QUIT
; /* allow user to bail out with ^C */
1630 if (areqs
.reg_mask
[ndx1
] != 0)
1632 /* assume chars have 8 bits */
1633 for (ndx2
= 0; ndx2
< 8; ndx2
++)
1634 if (areqs
.reg_mask
[ndx1
] & (1 << ndx2
))
1635 /* it's used -- record it */
1636 add_register (collect
,
1643 do_cleanups (old_chain
);
1646 while (action_exp
&& *action_exp
++ == ',');
1648 else if (cmd_cfunc_eq (cmd
, while_stepping_pseudocommand
))
1650 collect
= &stepping_list
;
1652 else if (cmd_cfunc_eq (cmd
, end_actions_pseudocommand
))
1654 if (collect
== &stepping_list
) /* end stepping actions */
1655 collect
= &tracepoint_list
;
1657 break; /* end tracepoint actions */
1660 memrange_sortmerge (&tracepoint_list
);
1661 memrange_sortmerge (&stepping_list
);
1663 *tdp_actions
= stringify_collection_list (&tracepoint_list
,
1665 *stepping_actions
= stringify_collection_list (&stepping_list
,
1670 add_aexpr (struct collection_list
*collect
, struct agent_expr
*aexpr
)
1672 if (collect
->next_aexpr_elt
>= collect
->aexpr_listsize
)
1674 collect
->aexpr_list
=
1675 xrealloc (collect
->aexpr_list
,
1676 2 * collect
->aexpr_listsize
* sizeof (struct agent_expr
*));
1677 collect
->aexpr_listsize
*= 2;
1679 collect
->aexpr_list
[collect
->next_aexpr_elt
] = aexpr
;
1680 collect
->next_aexpr_elt
++;
1683 static char *target_buf
;
1684 static long target_buf_size
;
1686 /* Set "transparent" memory ranges
1688 Allow trace mechanism to treat text-like sections
1689 (and perhaps all read-only sections) transparently,
1690 i.e. don't reject memory requests from these address ranges
1691 just because they haven't been collected. */
1694 remote_set_transparent_ranges (void)
1696 extern bfd
*exec_bfd
;
1703 return; /* No information to give. */
1705 strcpy (target_buf
, "QTro");
1706 for (s
= exec_bfd
->sections
; s
; s
= s
->next
)
1708 char tmp1
[40], tmp2
[40];
1710 if ((s
->flags
& SEC_LOAD
) == 0 ||
1711 /* (s->flags & SEC_CODE) == 0 || */
1712 (s
->flags
& SEC_READONLY
) == 0)
1717 size
= bfd_get_section_size (s
);
1718 sprintf_vma (tmp1
, lma
);
1719 sprintf_vma (tmp2
, lma
+ size
);
1720 sprintf (target_buf
+ strlen (target_buf
),
1721 ":%s,%s", tmp1
, tmp2
);
1725 putpkt (target_buf
);
1726 getpkt (&target_buf
, &target_buf_size
, 0);
1732 Tell target to clear any previous trace experiment.
1733 Walk the list of tracepoints, and send them (and their actions)
1734 to the target. If no errors,
1735 Tell target to start a new trace experiment. */
1738 trace_start_command (char *args
, int from_tty
)
1740 struct tracepoint
*t
;
1743 char **stepping_actions
;
1745 struct cleanup
*old_chain
= NULL
;
1747 dont_repeat (); /* Like "run", dangerous to repeat accidentally. */
1749 if (target_is_remote ())
1752 remote_get_noisy_reply (&target_buf
, &target_buf_size
);
1753 if (strcmp (target_buf
, "OK"))
1754 error (_("Target does not support this command."));
1760 sprintf_vma (tmp
, t
->address
);
1761 sprintf (buf
, "QTDP:%x:%s:%c:%lx:%x", t
->number
,
1763 t
->enabled_p
? 'E' : 'D',
1764 t
->step_count
, t
->pass_count
);
1769 remote_get_noisy_reply (&target_buf
, &target_buf_size
);
1770 if (strcmp (target_buf
, "OK"))
1771 error (_("Target does not support tracepoints."));
1775 encode_actions (t
, &tdp_actions
, &stepping_actions
);
1776 old_chain
= make_cleanup (free_actions_list_cleanup_wrapper
,
1778 (void) make_cleanup (free_actions_list_cleanup_wrapper
,
1781 /* do_single_steps (t); */
1784 for (ndx
= 0; tdp_actions
[ndx
]; ndx
++)
1786 QUIT
; /* allow user to bail out with ^C */
1787 sprintf (buf
, "QTDP:-%x:%s:%s%c",
1788 t
->number
, tmp
, /* address */
1790 ((tdp_actions
[ndx
+ 1] || stepping_actions
)
1793 remote_get_noisy_reply (&target_buf
,
1795 if (strcmp (target_buf
, "OK"))
1796 error (_("Error on target while setting tracepoints."));
1799 if (stepping_actions
)
1801 for (ndx
= 0; stepping_actions
[ndx
]; ndx
++)
1803 QUIT
; /* allow user to bail out with ^C */
1804 sprintf (buf
, "QTDP:-%x:%s:%s%s%s",
1805 t
->number
, tmp
, /* address */
1806 ((ndx
== 0) ? "S" : ""),
1807 stepping_actions
[ndx
],
1808 (stepping_actions
[ndx
+ 1] ? "-" : ""));
1810 remote_get_noisy_reply (&target_buf
,
1812 if (strcmp (target_buf
, "OK"))
1813 error (_("Error on target while setting tracepoints."));
1817 do_cleanups (old_chain
);
1820 /* Tell target to treat text-like sections as transparent. */
1821 remote_set_transparent_ranges ();
1822 /* Now insert traps and begin collecting data. */
1824 remote_get_noisy_reply (&target_buf
, &target_buf_size
);
1825 if (strcmp (target_buf
, "OK"))
1826 error (_("Bogus reply from target: %s"), target_buf
);
1827 set_traceframe_num (-1); /* All old traceframes invalidated. */
1828 set_tracepoint_num (-1);
1829 set_traceframe_context (-1);
1830 trace_running_p
= 1;
1831 if (deprecated_trace_start_stop_hook
)
1832 deprecated_trace_start_stop_hook (1, from_tty
);
1836 error (_("Trace can only be run on remote targets."));
1841 trace_stop_command (char *args
, int from_tty
)
1843 if (target_is_remote ())
1846 remote_get_noisy_reply (&target_buf
, &target_buf_size
);
1847 if (strcmp (target_buf
, "OK"))
1848 error (_("Bogus reply from target: %s"), target_buf
);
1849 trace_running_p
= 0;
1850 if (deprecated_trace_start_stop_hook
)
1851 deprecated_trace_start_stop_hook (0, from_tty
);
1854 error (_("Trace can only be run on remote targets."));
1857 unsigned long trace_running_p
;
1859 /* tstatus command */
1861 trace_status_command (char *args
, int from_tty
)
1863 if (target_is_remote ())
1865 putpkt ("qTStatus");
1866 remote_get_noisy_reply (&target_buf
, &target_buf_size
);
1868 if (target_buf
[0] != 'T' ||
1869 (target_buf
[1] != '0' && target_buf
[1] != '1'))
1870 error (_("Bogus reply from target: %s"), target_buf
);
1872 /* exported for use by the GUI */
1873 trace_running_p
= (target_buf
[1] == '1');
1876 error (_("Trace can only be run on remote targets."));
1879 /* Worker function for the various flavors of the tfind command. */
1881 finish_tfind_command (char **msg
,
1885 int target_frameno
= -1, target_tracept
= -1;
1886 CORE_ADDR old_frame_addr
;
1887 struct symbol
*old_func
;
1890 old_frame_addr
= get_frame_base (get_current_frame ());
1891 old_func
= find_pc_function (read_pc ());
1894 reply
= remote_get_noisy_reply (msg
, sizeof_msg
);
1896 while (reply
&& *reply
)
1900 if ((target_frameno
= (int) strtol (++reply
, &reply
, 16)) == -1)
1902 /* A request for a non-existant trace frame has failed.
1903 Our response will be different, depending on FROM_TTY:
1905 If FROM_TTY is true, meaning that this command was
1906 typed interactively by the user, then give an error
1907 and DO NOT change the state of traceframe_number etc.
1909 However if FROM_TTY is false, meaning that we're either
1910 in a script, a loop, or a user-defined command, then
1911 DON'T give an error, but DO change the state of
1912 traceframe_number etc. to invalid.
1914 The rationalle is that if you typed the command, you
1915 might just have committed a typo or something, and you'd
1916 like to NOT lose your current debugging state. However
1917 if you're in a user-defined command or especially in a
1918 loop, then you need a way to detect that the command
1919 failed WITHOUT aborting. This allows you to write
1920 scripts that search thru the trace buffer until the end,
1921 and then continue on to do something else. */
1924 error (_("Target failed to find requested trace frame."));
1928 printf_filtered ("End of trace buffer.\n");
1929 /* The following will not recurse, since it's
1931 trace_find_command ("-1", from_tty
);
1932 reply
= NULL
; /* Break out of loop
1933 (avoid recursive nonsense). */
1938 if ((target_tracept
= (int) strtol (++reply
, &reply
, 16)) == -1)
1939 error (_("Target failed to find requested trace frame."));
1941 case 'O': /* "OK"? */
1942 if (reply
[1] == 'K' && reply
[2] == '\0')
1945 error (_("Bogus reply from target: %s"), reply
);
1948 error (_("Bogus reply from target: %s"), reply
);
1951 reinit_frame_cache ();
1952 registers_changed ();
1953 set_traceframe_num (target_frameno
);
1954 set_tracepoint_num (target_tracept
);
1955 if (target_frameno
== -1)
1956 set_traceframe_context (-1);
1958 set_traceframe_context (read_pc ());
1962 enum print_what print_what
;
1964 /* NOTE: in immitation of the step command, try to determine
1965 whether we have made a transition from one function to
1966 another. If so, we'll print the "stack frame" (ie. the new
1967 function and it's arguments) -- otherwise we'll just show the
1970 This determination is made by checking (1) whether the
1971 current function has changed, and (2) whether the current FP
1972 has changed. Hack: if the FP wasn't collected, either at the
1973 current or the previous frame, assume that the FP has NOT
1976 if (old_func
== find_pc_function (read_pc ()) &&
1977 (old_frame_addr
== 0 ||
1978 get_frame_base (get_current_frame ()) == 0 ||
1979 old_frame_addr
== get_frame_base (get_current_frame ())))
1980 print_what
= SRC_LINE
;
1982 print_what
= SRC_AND_LOC
;
1984 print_stack_frame (get_selected_frame (NULL
), 1, print_what
);
1989 /* trace_find_command takes a trace frame number n,
1990 sends "QTFrame:<n>" to the target,
1991 and accepts a reply that may contain several optional pieces
1992 of information: a frame number, a tracepoint number, and an
1993 indication of whether this is a trap frame or a stepping frame.
1995 The minimal response is just "OK" (which indicates that the
1996 target does not give us a frame number or a tracepoint number).
1997 Instead of that, the target may send us a string containing
1999 F<hexnum> (gives the selected frame number)
2000 T<hexnum> (gives the selected tracepoint number)
2005 trace_find_command (char *args
, int from_tty
)
2006 { /* this should only be called with a numeric argument */
2009 if (target_is_remote ())
2011 if (deprecated_trace_find_hook
)
2012 deprecated_trace_find_hook (args
, from_tty
);
2014 if (args
== 0 || *args
== 0)
2015 { /* TFIND with no args means find NEXT trace frame. */
2016 if (traceframe_number
== -1)
2017 frameno
= 0; /* "next" is first one */
2019 frameno
= traceframe_number
+ 1;
2021 else if (0 == strcmp (args
, "-"))
2023 if (traceframe_number
== -1)
2024 error (_("not debugging trace buffer"));
2025 else if (from_tty
&& traceframe_number
== 0)
2026 error (_("already at start of trace buffer"));
2028 frameno
= traceframe_number
- 1;
2031 frameno
= parse_and_eval_long (args
);
2034 error (_("invalid input (%d is less than zero)"), frameno
);
2036 sprintf (target_buf
, "QTFrame:%x", frameno
);
2037 finish_tfind_command (&target_buf
, &target_buf_size
, from_tty
);
2040 error (_("Trace can only be run on remote targets."));
2045 trace_find_end_command (char *args
, int from_tty
)
2047 trace_find_command ("-1", from_tty
);
2052 trace_find_none_command (char *args
, int from_tty
)
2054 trace_find_command ("-1", from_tty
);
2059 trace_find_start_command (char *args
, int from_tty
)
2061 trace_find_command ("0", from_tty
);
2064 /* tfind pc command */
2066 trace_find_pc_command (char *args
, int from_tty
)
2071 if (target_is_remote ())
2073 if (args
== 0 || *args
== 0)
2074 pc
= read_pc (); /* default is current pc */
2076 pc
= parse_and_eval_address (args
);
2078 sprintf_vma (tmp
, pc
);
2079 sprintf (target_buf
, "QTFrame:pc:%s", tmp
);
2080 finish_tfind_command (&target_buf
, &target_buf_size
, from_tty
);
2083 error (_("Trace can only be run on remote targets."));
2086 /* tfind tracepoint command */
2088 trace_find_tracepoint_command (char *args
, int from_tty
)
2092 if (target_is_remote ())
2094 if (args
== 0 || *args
== 0)
2096 if (tracepoint_number
== -1)
2097 error (_("No current tracepoint -- please supply an argument."));
2099 tdp
= tracepoint_number
; /* default is current TDP */
2102 tdp
= parse_and_eval_long (args
);
2104 sprintf (target_buf
, "QTFrame:tdp:%x", tdp
);
2105 finish_tfind_command (&target_buf
, &target_buf_size
, from_tty
);
2108 error (_("Trace can only be run on remote targets."));
2111 /* TFIND LINE command:
2113 This command will take a sourceline for argument, just like BREAK
2114 or TRACE (ie. anything that "decode_line_1" can handle).
2116 With no argument, this command will find the next trace frame
2117 corresponding to a source line OTHER THAN THE CURRENT ONE. */
2120 trace_find_line_command (char *args
, int from_tty
)
2122 static CORE_ADDR start_pc
, end_pc
;
2123 struct symtabs_and_lines sals
;
2124 struct symtab_and_line sal
;
2125 struct cleanup
*old_chain
;
2126 char startpc_str
[40], endpc_str
[40];
2128 if (target_is_remote ())
2130 if (args
== 0 || *args
== 0)
2132 sal
= find_pc_line (get_frame_pc (get_current_frame ()), 0);
2134 sals
.sals
= (struct symtab_and_line
*)
2135 xmalloc (sizeof (struct symtab_and_line
));
2140 sals
= decode_line_spec (args
, 1);
2144 old_chain
= make_cleanup (xfree
, sals
.sals
);
2145 if (sal
.symtab
== 0)
2147 printf_filtered ("TFIND: No line number information available");
2150 /* This is useful for "info line *0x7f34". If we can't
2151 tell the user about a source line, at least let them
2152 have the symbolic address. */
2153 printf_filtered (" for address ");
2155 print_address (sal
.pc
, gdb_stdout
);
2156 printf_filtered (";\n -- will attempt to find by PC. \n");
2160 printf_filtered (".\n");
2161 return; /* No line, no PC; what can we do? */
2164 else if (sal
.line
> 0
2165 && find_line_pc_range (sal
, &start_pc
, &end_pc
))
2167 if (start_pc
== end_pc
)
2169 printf_filtered ("Line %d of \"%s\"",
2170 sal
.line
, sal
.symtab
->filename
);
2172 printf_filtered (" is at address ");
2173 print_address (start_pc
, gdb_stdout
);
2175 printf_filtered (" but contains no code.\n");
2176 sal
= find_pc_line (start_pc
, 0);
2178 find_line_pc_range (sal
, &start_pc
, &end_pc
) &&
2180 printf_filtered ("Attempting to find line %d instead.\n",
2183 error (_("Cannot find a good line."));
2187 /* Is there any case in which we get here, and have an address
2188 which the user would want to see? If we have debugging
2189 symbols and no line numbers? */
2190 error (_("Line number %d is out of range for \"%s\"."),
2191 sal
.line
, sal
.symtab
->filename
);
2193 sprintf_vma (startpc_str
, start_pc
);
2194 sprintf_vma (endpc_str
, end_pc
- 1);
2195 /* Find within range of stated line. */
2197 sprintf (target_buf
, "QTFrame:range:%s:%s",
2198 startpc_str
, endpc_str
);
2199 /* Find OUTSIDE OF range of CURRENT line. */
2201 sprintf (target_buf
, "QTFrame:outside:%s:%s",
2202 startpc_str
, endpc_str
);
2203 finish_tfind_command (&target_buf
, &target_buf_size
,
2205 do_cleanups (old_chain
);
2208 error (_("Trace can only be run on remote targets."));
2211 /* tfind range command */
2213 trace_find_range_command (char *args
, int from_tty
)
2215 static CORE_ADDR start
, stop
;
2216 char start_str
[40], stop_str
[40];
2219 if (target_is_remote ())
2221 if (args
== 0 || *args
== 0)
2222 { /* XXX FIXME: what should default behavior be? */
2223 printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n");
2227 if (0 != (tmp
= strchr (args
, ',')))
2229 *tmp
++ = '\0'; /* terminate start address */
2230 while (isspace ((int) *tmp
))
2232 start
= parse_and_eval_address (args
);
2233 stop
= parse_and_eval_address (tmp
);
2236 { /* no explicit end address? */
2237 start
= parse_and_eval_address (args
);
2238 stop
= start
+ 1; /* ??? */
2241 sprintf_vma (start_str
, start
);
2242 sprintf_vma (stop_str
, stop
);
2243 sprintf (target_buf
, "QTFrame:range:%s:%s", start_str
, stop_str
);
2244 finish_tfind_command (&target_buf
, &target_buf_size
, from_tty
);
2247 error (_("Trace can only be run on remote targets."));
2250 /* tfind outside command */
2252 trace_find_outside_command (char *args
, int from_tty
)
2254 CORE_ADDR start
, stop
;
2255 char start_str
[40], stop_str
[40];
2258 if (target_is_remote ())
2260 if (args
== 0 || *args
== 0)
2261 { /* XXX FIXME: what should default behavior be? */
2262 printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n");
2266 if (0 != (tmp
= strchr (args
, ',')))
2268 *tmp
++ = '\0'; /* terminate start address */
2269 while (isspace ((int) *tmp
))
2271 start
= parse_and_eval_address (args
);
2272 stop
= parse_and_eval_address (tmp
);
2275 { /* no explicit end address? */
2276 start
= parse_and_eval_address (args
);
2277 stop
= start
+ 1; /* ??? */
2280 sprintf_vma (start_str
, start
);
2281 sprintf_vma (stop_str
, stop
);
2282 sprintf (target_buf
, "QTFrame:outside:%s:%s", start_str
, stop_str
);
2283 finish_tfind_command (&target_buf
, &target_buf_size
, from_tty
);
2286 error (_("Trace can only be run on remote targets."));
2289 /* save-tracepoints command */
2291 tracepoint_save_command (char *args
, int from_tty
)
2293 struct tracepoint
*tp
;
2294 struct action_line
*line
;
2296 char *i1
= " ", *i2
= " ";
2297 char *indent
, *actionline
, *pathname
;
2300 if (args
== 0 || *args
== 0)
2301 error (_("Argument required (file name in which to save tracepoints)"));
2303 if (tracepoint_chain
== 0)
2305 warning (_("save-tracepoints: no tracepoints to save."));
2309 pathname
= tilde_expand (args
);
2310 if (!(fp
= fopen (pathname
, "w")))
2311 error (_("Unable to open file '%s' for saving tracepoints (%s)"),
2312 args
, safe_strerror (errno
));
2315 ALL_TRACEPOINTS (tp
)
2317 if (tp
->addr_string
)
2318 fprintf (fp
, "trace %s\n", tp
->addr_string
);
2321 sprintf_vma (tmp
, tp
->address
);
2322 fprintf (fp
, "trace *0x%s\n", tmp
);
2326 fprintf (fp
, " passcount %d\n", tp
->pass_count
);
2330 fprintf (fp
, " actions\n");
2332 for (line
= tp
->actions
; line
; line
= line
->next
)
2334 struct cmd_list_element
*cmd
;
2336 QUIT
; /* allow user to bail out with ^C */
2337 actionline
= line
->action
;
2338 while (isspace ((int) *actionline
))
2341 fprintf (fp
, "%s%s\n", indent
, actionline
);
2342 if (*actionline
!= '#') /* skip for comment lines */
2344 cmd
= lookup_cmd (&actionline
, cmdlist
, "", -1, 1);
2346 error (_("Bad action list item: %s"), actionline
);
2347 if (cmd_cfunc_eq (cmd
, while_stepping_pseudocommand
))
2349 else if (cmd_cfunc_eq (cmd
, end_actions_pseudocommand
))
2357 printf_filtered ("Tracepoints saved to file '%s'.\n", args
);
2361 /* info scope command: list the locals for a scope. */
2363 scope_info (char *args
, int from_tty
)
2365 struct symtabs_and_lines sals
;
2367 struct minimal_symbol
*msym
;
2368 struct block
*block
;
2369 char **canonical
, *symname
, *save_args
= args
;
2370 struct dict_iterator iter
;
2373 if (args
== 0 || *args
== 0)
2374 error (_("requires an argument (function, line or *addr) to define a scope"));
2376 sals
= decode_line_1 (&args
, 1, NULL
, 0, &canonical
, NULL
);
2377 if (sals
.nelts
== 0)
2378 return; /* presumably decode_line_1 has already warned */
2380 /* Resolve line numbers to PC */
2381 resolve_sal_pc (&sals
.sals
[0]);
2382 block
= block_for_pc (sals
.sals
[0].pc
);
2386 QUIT
; /* allow user to bail out with ^C */
2387 ALL_BLOCK_SYMBOLS (block
, iter
, sym
)
2389 QUIT
; /* allow user to bail out with ^C */
2391 printf_filtered ("Scope for %s:\n", save_args
);
2394 symname
= DEPRECATED_SYMBOL_NAME (sym
);
2395 if (symname
== NULL
|| *symname
== '\0')
2396 continue; /* probably botched, certainly useless */
2398 printf_filtered ("Symbol %s is ", symname
);
2399 switch (SYMBOL_CLASS (sym
))
2402 case LOC_UNDEF
: /* messed up symbol? */
2403 printf_filtered ("a bogus symbol, class %d.\n",
2404 SYMBOL_CLASS (sym
));
2405 count
--; /* don't count this one */
2408 printf_filtered ("a constant with value %ld (0x%lx)",
2409 SYMBOL_VALUE (sym
), SYMBOL_VALUE (sym
));
2411 case LOC_CONST_BYTES
:
2412 printf_filtered ("constant bytes: ");
2413 if (SYMBOL_TYPE (sym
))
2414 for (j
= 0; j
< TYPE_LENGTH (SYMBOL_TYPE (sym
)); j
++)
2415 fprintf_filtered (gdb_stdout
, " %02x",
2416 (unsigned) SYMBOL_VALUE_BYTES (sym
)[j
]);
2419 printf_filtered ("in static storage at address ");
2420 printf_filtered ("%s", paddress (SYMBOL_VALUE_ADDRESS (sym
)));
2423 if (SYMBOL_IS_ARGUMENT (sym
))
2424 printf_filtered ("an argument in register $%s",
2425 gdbarch_register_name
2426 (current_gdbarch
, SYMBOL_VALUE (sym
)));
2428 printf_filtered ("a local variable in register $%s",
2429 gdbarch_register_name
2430 (current_gdbarch
, SYMBOL_VALUE (sym
)));
2433 printf_filtered ("an argument at stack/frame offset %ld",
2434 SYMBOL_VALUE (sym
));
2437 printf_filtered ("a local variable at frame offset %ld",
2438 SYMBOL_VALUE (sym
));
2441 printf_filtered ("a reference argument at offset %ld",
2442 SYMBOL_VALUE (sym
));
2444 case LOC_REGPARM_ADDR
:
2445 printf_filtered ("the address of an argument, in register $%s",
2446 gdbarch_register_name
2447 (current_gdbarch
, SYMBOL_VALUE (sym
)));
2450 printf_filtered ("a typedef.\n");
2453 printf_filtered ("a label at address ");
2454 printf_filtered ("%s", paddress (SYMBOL_VALUE_ADDRESS (sym
)));
2457 printf_filtered ("a function at address ");
2458 printf_filtered ("%s", paddress (BLOCK_START (SYMBOL_BLOCK_VALUE (sym
))));
2460 case LOC_UNRESOLVED
:
2461 msym
= lookup_minimal_symbol (DEPRECATED_SYMBOL_NAME (sym
),
2464 printf_filtered ("Unresolved Static");
2467 printf_filtered ("static storage at address ");
2468 printf_filtered ("%s", paddress (SYMBOL_VALUE_ADDRESS (msym
)));
2471 case LOC_OPTIMIZED_OUT
:
2472 printf_filtered ("optimized out.\n");
2475 SYMBOL_OPS (sym
)->describe_location (sym
, gdb_stdout
);
2478 if (SYMBOL_TYPE (sym
))
2479 printf_filtered (", length %d.\n",
2480 TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym
))));
2482 if (BLOCK_FUNCTION (block
))
2485 block
= BLOCK_SUPERBLOCK (block
);
2488 printf_filtered ("Scope for %s contains no locals or arguments.\n",
2492 /* worker function (cleanup) */
2494 replace_comma (void *data
)
2502 trace_dump_command (char *args
, int from_tty
)
2504 struct regcache
*regcache
;
2505 struct gdbarch
*gdbarch
;
2506 struct tracepoint
*t
;
2507 struct action_line
*action
;
2508 char *action_exp
, *next_comma
;
2509 struct cleanup
*old_cleanups
;
2510 int stepping_actions
= 0;
2511 int stepping_frame
= 0;
2513 if (!target_is_remote ())
2515 error (_("Trace can only be run on remote targets."));
2519 if (tracepoint_number
== -1)
2521 warning (_("No current trace frame."));
2526 if (t
->number
== tracepoint_number
)
2530 error (_("No known tracepoint matches 'current' tracepoint #%d."),
2533 old_cleanups
= make_cleanup (null_cleanup
, NULL
);
2535 printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n",
2536 tracepoint_number
, traceframe_number
);
2538 /* The current frame is a trap frame if the frame PC is equal
2539 to the tracepoint PC. If not, then the current frame was
2540 collected during single-stepping. */
2542 regcache
= get_current_regcache ();
2543 gdbarch
= get_regcache_arch (regcache
);
2545 stepping_frame
= (t
->address
!= (regcache_read_pc (regcache
)
2546 - gdbarch_decr_pc_after_break (gdbarch
)));
2548 for (action
= t
->actions
; action
; action
= action
->next
)
2550 struct cmd_list_element
*cmd
;
2552 QUIT
; /* allow user to bail out with ^C */
2553 action_exp
= action
->action
;
2554 while (isspace ((int) *action_exp
))
2557 /* The collection actions to be done while stepping are
2558 bracketed by the commands "while-stepping" and "end". */
2560 if (*action_exp
== '#') /* comment line */
2563 cmd
= lookup_cmd (&action_exp
, cmdlist
, "", -1, 1);
2565 error (_("Bad action list item: %s"), action_exp
);
2567 if (cmd_cfunc_eq (cmd
, while_stepping_pseudocommand
))
2568 stepping_actions
= 1;
2569 else if (cmd_cfunc_eq (cmd
, end_actions_pseudocommand
))
2570 stepping_actions
= 0;
2571 else if (cmd_cfunc_eq (cmd
, collect_pseudocommand
))
2573 /* Display the collected data.
2574 For the trap frame, display only what was collected at
2575 the trap. Likewise for stepping frames, display only
2576 what was collected while stepping. This means that the
2577 two boolean variables, STEPPING_FRAME and
2578 STEPPING_ACTIONS should be equal. */
2579 if (stepping_frame
== stepping_actions
)
2582 { /* repeat over a comma-separated list */
2583 QUIT
; /* allow user to bail out with ^C */
2584 if (*action_exp
== ',')
2586 while (isspace ((int) *action_exp
))
2589 next_comma
= strchr (action_exp
, ',');
2591 if (0 == strncasecmp (action_exp
, "$reg", 4))
2592 registers_info (NULL
, from_tty
);
2593 else if (0 == strncasecmp (action_exp
, "$loc", 4))
2594 locals_info (NULL
, from_tty
);
2595 else if (0 == strncasecmp (action_exp
, "$arg", 4))
2596 args_info (NULL
, from_tty
);
2601 make_cleanup (replace_comma
, next_comma
);
2604 printf_filtered ("%s = ", action_exp
);
2605 output_command (action_exp
, from_tty
);
2606 printf_filtered ("\n");
2610 action_exp
= next_comma
;
2612 while (action_exp
&& *action_exp
== ',');
2616 discard_cleanups (old_cleanups
);
2619 /* Convert the memory pointed to by mem into hex, placing result in buf.
2620 * Return a pointer to the last char put in buf (null)
2621 * "stolen" from sparc-stub.c
2624 static const char hexchars
[] = "0123456789abcdef";
2627 mem2hex (gdb_byte
*mem
, char *buf
, int count
)
2635 *buf
++ = hexchars
[ch
>> 4];
2636 *buf
++ = hexchars
[ch
& 0xf];
2645 get_traceframe_number (void)
2647 return traceframe_number
;
2651 /* module initialization */
2653 _initialize_tracepoint (void)
2655 struct cmd_list_element
*c
;
2657 tracepoint_chain
= 0;
2658 tracepoint_count
= 0;
2659 traceframe_number
= -1;
2660 tracepoint_number
= -1;
2662 if (tracepoint_list
.list
== NULL
)
2664 tracepoint_list
.listsize
= 128;
2665 tracepoint_list
.list
= xmalloc
2666 (tracepoint_list
.listsize
* sizeof (struct memrange
));
2668 if (tracepoint_list
.aexpr_list
== NULL
)
2670 tracepoint_list
.aexpr_listsize
= 128;
2671 tracepoint_list
.aexpr_list
= xmalloc
2672 (tracepoint_list
.aexpr_listsize
* sizeof (struct agent_expr
*));
2675 if (stepping_list
.list
== NULL
)
2677 stepping_list
.listsize
= 128;
2678 stepping_list
.list
= xmalloc
2679 (stepping_list
.listsize
* sizeof (struct memrange
));
2682 if (stepping_list
.aexpr_list
== NULL
)
2684 stepping_list
.aexpr_listsize
= 128;
2685 stepping_list
.aexpr_list
= xmalloc
2686 (stepping_list
.aexpr_listsize
* sizeof (struct agent_expr
*));
2689 add_info ("scope", scope_info
,
2690 _("List the variables local to a scope"));
2692 add_cmd ("tracepoints", class_trace
, NULL
,
2693 _("Tracing of program execution without stopping the program."),
2696 add_info ("tracepoints", tracepoints_info
, _("\
2697 Status of tracepoints, or tracepoint number NUMBER.\n\
2698 Convenience variable \"$tpnum\" contains the number of the\n\
2699 last tracepoint set."));
2701 add_info_alias ("tp", "tracepoints", 1);
2703 c
= add_com ("save-tracepoints", class_trace
, tracepoint_save_command
, _("\
2704 Save current tracepoint definitions as a script.\n\
2705 Use the 'source' command in another debug session to restore them."));
2706 set_cmd_completer (c
, filename_completer
);
2708 add_com ("tdump", class_trace
, trace_dump_command
,
2709 _("Print everything collected at the current tracepoint."));
2711 add_prefix_cmd ("tfind", class_trace
, trace_find_command
, _("\
2712 Select a trace frame;\n\
2713 No argument means forward by one frame; '-' means backward by one frame."),
2714 &tfindlist
, "tfind ", 1, &cmdlist
);
2716 add_cmd ("outside", class_trace
, trace_find_outside_command
, _("\
2717 Select a trace frame whose PC is outside the given range.\n\
2718 Usage: tfind outside addr1, addr2"),
2721 add_cmd ("range", class_trace
, trace_find_range_command
, _("\
2722 Select a trace frame whose PC is in the given range.\n\
2723 Usage: tfind range addr1,addr2"),
2726 add_cmd ("line", class_trace
, trace_find_line_command
, _("\
2727 Select a trace frame by source line.\n\
2728 Argument can be a line number (with optional source file), \n\
2729 a function name, or '*' followed by an address.\n\
2730 Default argument is 'the next source line that was traced'."),
2733 add_cmd ("tracepoint", class_trace
, trace_find_tracepoint_command
, _("\
2734 Select a trace frame by tracepoint number.\n\
2735 Default is the tracepoint for the current trace frame."),
2738 add_cmd ("pc", class_trace
, trace_find_pc_command
, _("\
2739 Select a trace frame by PC.\n\
2740 Default is the current PC, or the PC of the current trace frame."),
2743 add_cmd ("end", class_trace
, trace_find_end_command
, _("\
2744 Synonym for 'none'.\n\
2745 De-select any trace frame and resume 'live' debugging."),
2748 add_cmd ("none", class_trace
, trace_find_none_command
,
2749 _("De-select any trace frame and resume 'live' debugging."),
2752 add_cmd ("start", class_trace
, trace_find_start_command
,
2753 _("Select the first trace frame in the trace buffer."),
2756 add_com ("tstatus", class_trace
, trace_status_command
,
2757 _("Display the status of the current trace data collection."));
2759 add_com ("tstop", class_trace
, trace_stop_command
,
2760 _("Stop trace data collection."));
2762 add_com ("tstart", class_trace
, trace_start_command
,
2763 _("Start trace data collection."));
2765 add_com ("passcount", class_trace
, trace_pass_command
, _("\
2766 Set the passcount for a tracepoint.\n\
2767 The trace will end when the tracepoint has been passed 'count' times.\n\
2768 Usage: passcount COUNT TPNUM, where TPNUM may also be \"all\";\n\
2769 if TPNUM is omitted, passcount refers to the last tracepoint defined."));
2771 add_com ("end", class_trace
, end_actions_pseudocommand
, _("\
2772 Ends a list of commands or actions.\n\
2773 Several GDB commands allow you to enter a list of commands or actions.\n\
2774 Entering \"end\" on a line by itself is the normal way to terminate\n\
2776 Note: the \"end\" command cannot be used at the gdb prompt."));
2778 add_com ("while-stepping", class_trace
, while_stepping_pseudocommand
, _("\
2779 Specify single-stepping behavior at a tracepoint.\n\
2780 Argument is number of instructions to trace in single-step mode\n\
2781 following the tracepoint. This command is normally followed by\n\
2782 one or more \"collect\" commands, to specify what to collect\n\
2783 while single-stepping.\n\n\
2784 Note: this command can only be used in a tracepoint \"actions\" list."));
2786 add_com_alias ("ws", "while-stepping", class_alias
, 0);
2787 add_com_alias ("stepping", "while-stepping", class_alias
, 0);
2789 add_com ("collect", class_trace
, collect_pseudocommand
, _("\
2790 Specify one or more data items to be collected at a tracepoint.\n\
2791 Accepts a comma-separated list of (one or more) expressions. GDB will\n\
2792 collect all data (variables, registers) referenced by that expression.\n\
2793 Also accepts the following special arguments:\n\
2794 $regs -- all registers.\n\
2795 $args -- all function arguments.\n\
2796 $locals -- all variables local to the block/function scope.\n\
2797 Note: this command can only be used in a tracepoint \"actions\" list."));
2799 add_com ("actions", class_trace
, trace_actions_command
, _("\
2800 Specify the actions to be taken at a tracepoint.\n\
2801 Tracepoint actions may include collecting of specified data, \n\
2802 single-stepping, or enabling/disabling other tracepoints, \n\
2803 depending on target's capabilities."));
2805 add_cmd ("tracepoints", class_trace
, delete_trace_command
, _("\
2806 Delete specified tracepoints.\n\
2807 Arguments are tracepoint numbers, separated by spaces.\n\
2808 No argument means delete all tracepoints."),
2811 add_cmd ("tracepoints", class_trace
, disable_trace_command
, _("\
2812 Disable specified tracepoints.\n\
2813 Arguments are tracepoint numbers, separated by spaces.\n\
2814 No argument means disable all tracepoints."),
2817 add_cmd ("tracepoints", class_trace
, enable_trace_command
, _("\
2818 Enable specified tracepoints.\n\
2819 Arguments are tracepoint numbers, separated by spaces.\n\
2820 No argument means enable all tracepoints."),
2823 c
= add_com ("trace", class_trace
, trace_command
, _("\
2824 Set a tracepoint at a specified line or function or address.\n\
2825 Argument may be a line number, function name, or '*' plus an address.\n\
2826 For a line number or function, trace at the start of its code.\n\
2827 If an address is specified, trace at that exact address.\n\n\
2828 Do \"help tracepoints\" for info on other tracepoint commands."));
2829 set_cmd_completer (c
, location_completer
);
2831 add_com_alias ("tp", "trace", class_alias
, 0);
2832 add_com_alias ("tr", "trace", class_alias
, 1);
2833 add_com_alias ("tra", "trace", class_alias
, 1);
2834 add_com_alias ("trac", "trace", class_alias
, 1);
2836 target_buf_size
= 2048;
2837 target_buf
= xmalloc (target_buf_size
);