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
);
1241 reg
= SYMBOL_VALUE (sym
);
1243 printf_filtered ("LOC_REG[parm] %s: ",
1244 DEPRECATED_SYMBOL_NAME (sym
));
1245 add_register (collect
, reg
);
1246 /* Check for doubles stored in two registers. */
1247 /* FIXME: how about larger types stored in 3 or more regs? */
1248 if (TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_FLT
&&
1249 len
> register_size (current_gdbarch
, reg
))
1250 add_register (collect
, reg
+ 1);
1253 printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n");
1254 printf_filtered (" (will not collect %s)\n",
1255 DEPRECATED_SYMBOL_NAME (sym
));
1259 offset
= frame_offset
+ SYMBOL_VALUE (sym
);
1262 printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ",
1263 DEPRECATED_SYMBOL_NAME (sym
), len
);
1264 printf_vma (offset
);
1265 printf_filtered (" from frame ptr reg %d\n", reg
);
1267 add_memrange (collect
, reg
, offset
, len
);
1269 case LOC_REGPARM_ADDR
:
1270 reg
= SYMBOL_VALUE (sym
);
1274 printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset ",
1275 DEPRECATED_SYMBOL_NAME (sym
), len
);
1276 printf_vma (offset
);
1277 printf_filtered (" from reg %d\n", reg
);
1279 add_memrange (collect
, reg
, offset
, len
);
1283 offset
= frame_offset
+ SYMBOL_VALUE (sym
);
1286 printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ",
1287 DEPRECATED_SYMBOL_NAME (sym
), len
);
1288 printf_vma (offset
);
1289 printf_filtered (" from frame ptr reg %d\n", reg
);
1291 add_memrange (collect
, reg
, offset
, len
);
1294 case LOC_BASEREG_ARG
:
1295 reg
= SYMBOL_BASEREG (sym
);
1296 offset
= SYMBOL_VALUE (sym
);
1299 printf_filtered ("LOC_BASEREG %s: collect %ld bytes at offset ",
1300 DEPRECATED_SYMBOL_NAME (sym
), len
);
1301 printf_vma (offset
);
1302 printf_filtered (" from basereg %d\n", reg
);
1304 add_memrange (collect
, reg
, offset
, len
);
1306 case LOC_UNRESOLVED
:
1307 printf_filtered ("Don't know LOC_UNRESOLVED %s\n",
1308 DEPRECATED_SYMBOL_NAME (sym
));
1310 case LOC_OPTIMIZED_OUT
:
1311 printf_filtered ("%s has been optimized out of existence.\n",
1312 DEPRECATED_SYMBOL_NAME (sym
));
1317 /* Add all locals (or args) symbols to collection list */
1319 add_local_symbols (struct collection_list
*collect
, CORE_ADDR pc
,
1320 long frame_regno
, long frame_offset
, int type
)
1323 struct block
*block
;
1324 struct dict_iterator iter
;
1327 block
= block_for_pc (pc
);
1330 QUIT
; /* allow user to bail out with ^C */
1331 ALL_BLOCK_SYMBOLS (block
, iter
, sym
)
1333 switch (SYMBOL_CLASS (sym
))
1336 warning (_("don't know how to trace local symbol %s"),
1337 DEPRECATED_SYMBOL_NAME (sym
));
1342 if (type
== 'L') /* collecting Locals */
1345 collect_symbol (collect
, sym
, frame_regno
,
1352 case LOC_REGPARM_ADDR
:
1353 case LOC_BASEREG_ARG
:
1354 if (type
== 'A') /* collecting Arguments */
1357 collect_symbol (collect
, sym
, frame_regno
,
1362 if (BLOCK_FUNCTION (block
))
1365 block
= BLOCK_SUPERBLOCK (block
);
1368 warning (_("No %s found in scope."),
1369 type
== 'L' ? "locals" : "args");
1372 /* worker function */
1374 clear_collection_list (struct collection_list
*list
)
1378 list
->next_memrange
= 0;
1379 for (ndx
= 0; ndx
< list
->next_aexpr_elt
; ndx
++)
1381 free_agent_expr (list
->aexpr_list
[ndx
]);
1382 list
->aexpr_list
[ndx
] = NULL
;
1384 list
->next_aexpr_elt
= 0;
1385 memset (list
->regs_mask
, 0, sizeof (list
->regs_mask
));
1388 /* reduce a collection list to string form (for gdb protocol) */
1390 stringify_collection_list (struct collection_list
*list
, char *string
)
1392 char temp_buf
[2048];
1396 char *(*str_list
)[];
1400 count
= 1 + list
->next_memrange
+ list
->next_aexpr_elt
+ 1;
1401 str_list
= (char *(*)[]) xmalloc (count
* sizeof (char *));
1403 for (i
= sizeof (list
->regs_mask
) - 1; i
> 0; i
--)
1404 if (list
->regs_mask
[i
] != 0) /* skip leading zeroes in regs_mask */
1406 if (list
->regs_mask
[i
] != 0) /* prepare to send regs_mask to the stub */
1409 printf_filtered ("\nCollecting registers (mask): 0x");
1414 QUIT
; /* allow user to bail out with ^C */
1416 printf_filtered ("%02X", list
->regs_mask
[i
]);
1417 sprintf (end
, "%02X", list
->regs_mask
[i
]);
1420 (*str_list
)[ndx
] = savestring (temp_buf
, end
- temp_buf
);
1424 printf_filtered ("\n");
1425 if (list
->next_memrange
> 0 && info_verbose
)
1426 printf_filtered ("Collecting memranges: \n");
1427 for (i
= 0, count
= 0, end
= temp_buf
; i
< list
->next_memrange
; i
++)
1429 QUIT
; /* allow user to bail out with ^C */
1430 sprintf_vma (tmp2
, list
->list
[i
].start
);
1433 printf_filtered ("(%d, %s, %ld)\n",
1436 (long) (list
->list
[i
].end
- list
->list
[i
].start
));
1438 if (count
+ 27 > MAX_AGENT_EXPR_LEN
)
1440 (*str_list
)[ndx
] = savestring (temp_buf
, count
);
1447 bfd_signed_vma length
= list
->list
[i
].end
- list
->list
[i
].start
;
1449 /* The "%X" conversion specifier expects an unsigned argument,
1450 so passing -1 (memrange_absolute) to it directly gives you
1451 "FFFFFFFF" (or more, depending on sizeof (unsigned)).
1453 if (list
->list
[i
].type
== memrange_absolute
)
1454 sprintf (end
, "M-1,%s,%lX", tmp2
, (long) length
);
1456 sprintf (end
, "M%X,%s,%lX", list
->list
[i
].type
, tmp2
, (long) length
);
1459 count
+= strlen (end
);
1460 end
= temp_buf
+ count
;
1463 for (i
= 0; i
< list
->next_aexpr_elt
; i
++)
1465 QUIT
; /* allow user to bail out with ^C */
1466 if ((count
+ 10 + 2 * list
->aexpr_list
[i
]->len
) > MAX_AGENT_EXPR_LEN
)
1468 (*str_list
)[ndx
] = savestring (temp_buf
, count
);
1473 sprintf (end
, "X%08X,", list
->aexpr_list
[i
]->len
);
1474 end
+= 10; /* 'X' + 8 hex digits + ',' */
1477 end
= mem2hex (list
->aexpr_list
[i
]->buf
,
1478 end
, list
->aexpr_list
[i
]->len
);
1479 count
+= 2 * list
->aexpr_list
[i
]->len
;
1484 (*str_list
)[ndx
] = savestring (temp_buf
, count
);
1489 (*str_list
)[ndx
] = NULL
;
1501 free_actions_list_cleanup_wrapper (void *al
)
1503 free_actions_list (al
);
1507 free_actions_list (char **actions_list
)
1511 if (actions_list
== 0)
1514 for (ndx
= 0; actions_list
[ndx
]; ndx
++)
1515 xfree (actions_list
[ndx
]);
1517 xfree (actions_list
);
1520 /* Render all actions into gdb protocol. */
1522 encode_actions (struct tracepoint
*t
, char ***tdp_actions
,
1523 char ***stepping_actions
)
1525 static char tdp_buff
[2048], step_buff
[2048];
1527 struct expression
*exp
= NULL
;
1528 struct action_line
*action
;
1530 struct value
*tempval
;
1531 struct collection_list
*collect
;
1532 struct cmd_list_element
*cmd
;
1533 struct agent_expr
*aexpr
;
1535 LONGEST frame_offset
;
1538 clear_collection_list (&tracepoint_list
);
1539 clear_collection_list (&stepping_list
);
1540 collect
= &tracepoint_list
;
1542 *tdp_actions
= NULL
;
1543 *stepping_actions
= NULL
;
1545 gdbarch_virtual_frame_pointer (current_gdbarch
,
1546 t
->address
, &frame_reg
, &frame_offset
);
1548 for (action
= t
->actions
; action
; action
= action
->next
)
1550 QUIT
; /* allow user to bail out with ^C */
1551 action_exp
= action
->action
;
1552 while (isspace ((int) *action_exp
))
1555 if (*action_exp
== '#') /* comment line */
1558 cmd
= lookup_cmd (&action_exp
, cmdlist
, "", -1, 1);
1560 error (_("Bad action list item: %s"), action_exp
);
1562 if (cmd_cfunc_eq (cmd
, collect_pseudocommand
))
1565 { /* repeat over a comma-separated list */
1566 QUIT
; /* allow user to bail out with ^C */
1567 while (isspace ((int) *action_exp
))
1570 if (0 == strncasecmp ("$reg", action_exp
, 4))
1572 for (i
= 0; i
< gdbarch_num_regs (current_gdbarch
); i
++)
1573 add_register (collect
, i
);
1574 action_exp
= strchr (action_exp
, ','); /* more? */
1576 else if (0 == strncasecmp ("$arg", action_exp
, 4))
1578 add_local_symbols (collect
,
1583 action_exp
= strchr (action_exp
, ','); /* more? */
1585 else if (0 == strncasecmp ("$loc", action_exp
, 4))
1587 add_local_symbols (collect
,
1592 action_exp
= strchr (action_exp
, ','); /* more? */
1596 unsigned long addr
, len
;
1597 struct cleanup
*old_chain
= NULL
;
1598 struct cleanup
*old_chain1
= NULL
;
1599 struct agent_reqs areqs
;
1601 exp
= parse_exp_1 (&action_exp
,
1602 block_for_pc (t
->address
), 1);
1603 old_chain
= make_cleanup (free_current_contents
, &exp
);
1605 switch (exp
->elts
[0].opcode
)
1609 const char *name
= &exp
->elts
[2].string
;
1611 i
= frame_map_name_to_regnum (deprecated_safe_get_selected_frame (),
1612 name
, strlen (name
));
1614 internal_error (__FILE__
, __LINE__
,
1615 _("Register $%s not available"),
1618 printf_filtered ("OP_REGISTER: ");
1619 add_register (collect
, i
);
1624 /* safe because we know it's a simple expression */
1625 tempval
= evaluate_expression (exp
);
1626 addr
= VALUE_ADDRESS (tempval
) + value_offset (tempval
);
1627 len
= TYPE_LENGTH (check_typedef (exp
->elts
[1].type
));
1628 add_memrange (collect
, memrange_absolute
, addr
, len
);
1632 collect_symbol (collect
,
1633 exp
->elts
[2].symbol
,
1638 default: /* full-fledged expression */
1639 aexpr
= gen_trace_for_expr (t
->address
, exp
);
1641 old_chain1
= make_cleanup_free_agent_expr (aexpr
);
1643 ax_reqs (aexpr
, &areqs
);
1644 if (areqs
.flaw
!= agent_flaw_none
)
1645 error (_("malformed expression"));
1647 if (areqs
.min_height
< 0)
1648 error (_("gdb: Internal error: expression has min height < 0"));
1649 if (areqs
.max_height
> 20)
1650 error (_("expression too complicated, try simplifying"));
1652 discard_cleanups (old_chain1
);
1653 add_aexpr (collect
, aexpr
);
1655 /* take care of the registers */
1656 if (areqs
.reg_mask_len
> 0)
1661 for (ndx1
= 0; ndx1
< areqs
.reg_mask_len
; ndx1
++)
1663 QUIT
; /* allow user to bail out with ^C */
1664 if (areqs
.reg_mask
[ndx1
] != 0)
1666 /* assume chars have 8 bits */
1667 for (ndx2
= 0; ndx2
< 8; ndx2
++)
1668 if (areqs
.reg_mask
[ndx1
] & (1 << ndx2
))
1669 /* it's used -- record it */
1670 add_register (collect
,
1677 do_cleanups (old_chain
);
1680 while (action_exp
&& *action_exp
++ == ',');
1682 else if (cmd_cfunc_eq (cmd
, while_stepping_pseudocommand
))
1684 collect
= &stepping_list
;
1686 else if (cmd_cfunc_eq (cmd
, end_actions_pseudocommand
))
1688 if (collect
== &stepping_list
) /* end stepping actions */
1689 collect
= &tracepoint_list
;
1691 break; /* end tracepoint actions */
1694 memrange_sortmerge (&tracepoint_list
);
1695 memrange_sortmerge (&stepping_list
);
1697 *tdp_actions
= stringify_collection_list (&tracepoint_list
,
1699 *stepping_actions
= stringify_collection_list (&stepping_list
,
1704 add_aexpr (struct collection_list
*collect
, struct agent_expr
*aexpr
)
1706 if (collect
->next_aexpr_elt
>= collect
->aexpr_listsize
)
1708 collect
->aexpr_list
=
1709 xrealloc (collect
->aexpr_list
,
1710 2 * collect
->aexpr_listsize
* sizeof (struct agent_expr
*));
1711 collect
->aexpr_listsize
*= 2;
1713 collect
->aexpr_list
[collect
->next_aexpr_elt
] = aexpr
;
1714 collect
->next_aexpr_elt
++;
1717 static char *target_buf
;
1718 static long target_buf_size
;
1720 /* Set "transparent" memory ranges
1722 Allow trace mechanism to treat text-like sections
1723 (and perhaps all read-only sections) transparently,
1724 i.e. don't reject memory requests from these address ranges
1725 just because they haven't been collected. */
1728 remote_set_transparent_ranges (void)
1730 extern bfd
*exec_bfd
;
1737 return; /* No information to give. */
1739 strcpy (target_buf
, "QTro");
1740 for (s
= exec_bfd
->sections
; s
; s
= s
->next
)
1742 char tmp1
[40], tmp2
[40];
1744 if ((s
->flags
& SEC_LOAD
) == 0 ||
1745 /* (s->flags & SEC_CODE) == 0 || */
1746 (s
->flags
& SEC_READONLY
) == 0)
1751 size
= bfd_get_section_size (s
);
1752 sprintf_vma (tmp1
, lma
);
1753 sprintf_vma (tmp2
, lma
+ size
);
1754 sprintf (target_buf
+ strlen (target_buf
),
1755 ":%s,%s", tmp1
, tmp2
);
1759 putpkt (target_buf
);
1760 getpkt (&target_buf
, &target_buf_size
, 0);
1766 Tell target to clear any previous trace experiment.
1767 Walk the list of tracepoints, and send them (and their actions)
1768 to the target. If no errors,
1769 Tell target to start a new trace experiment. */
1772 trace_start_command (char *args
, int from_tty
)
1774 struct tracepoint
*t
;
1777 char **stepping_actions
;
1779 struct cleanup
*old_chain
= NULL
;
1781 dont_repeat (); /* Like "run", dangerous to repeat accidentally. */
1783 if (target_is_remote ())
1786 remote_get_noisy_reply (&target_buf
, &target_buf_size
);
1787 if (strcmp (target_buf
, "OK"))
1788 error (_("Target does not support this command."));
1794 sprintf_vma (tmp
, t
->address
);
1795 sprintf (buf
, "QTDP:%x:%s:%c:%lx:%x", t
->number
,
1797 t
->enabled_p
? 'E' : 'D',
1798 t
->step_count
, t
->pass_count
);
1803 remote_get_noisy_reply (&target_buf
, &target_buf_size
);
1804 if (strcmp (target_buf
, "OK"))
1805 error (_("Target does not support tracepoints."));
1809 encode_actions (t
, &tdp_actions
, &stepping_actions
);
1810 old_chain
= make_cleanup (free_actions_list_cleanup_wrapper
,
1812 (void) make_cleanup (free_actions_list_cleanup_wrapper
,
1815 /* do_single_steps (t); */
1818 for (ndx
= 0; tdp_actions
[ndx
]; ndx
++)
1820 QUIT
; /* allow user to bail out with ^C */
1821 sprintf (buf
, "QTDP:-%x:%s:%s%c",
1822 t
->number
, tmp
, /* address */
1824 ((tdp_actions
[ndx
+ 1] || stepping_actions
)
1827 remote_get_noisy_reply (&target_buf
,
1829 if (strcmp (target_buf
, "OK"))
1830 error (_("Error on target while setting tracepoints."));
1833 if (stepping_actions
)
1835 for (ndx
= 0; stepping_actions
[ndx
]; ndx
++)
1837 QUIT
; /* allow user to bail out with ^C */
1838 sprintf (buf
, "QTDP:-%x:%s:%s%s%s",
1839 t
->number
, tmp
, /* address */
1840 ((ndx
== 0) ? "S" : ""),
1841 stepping_actions
[ndx
],
1842 (stepping_actions
[ndx
+ 1] ? "-" : ""));
1844 remote_get_noisy_reply (&target_buf
,
1846 if (strcmp (target_buf
, "OK"))
1847 error (_("Error on target while setting tracepoints."));
1851 do_cleanups (old_chain
);
1854 /* Tell target to treat text-like sections as transparent. */
1855 remote_set_transparent_ranges ();
1856 /* Now insert traps and begin collecting data. */
1858 remote_get_noisy_reply (&target_buf
, &target_buf_size
);
1859 if (strcmp (target_buf
, "OK"))
1860 error (_("Bogus reply from target: %s"), target_buf
);
1861 set_traceframe_num (-1); /* All old traceframes invalidated. */
1862 set_tracepoint_num (-1);
1863 set_traceframe_context (-1);
1864 trace_running_p
= 1;
1865 if (deprecated_trace_start_stop_hook
)
1866 deprecated_trace_start_stop_hook (1, from_tty
);
1870 error (_("Trace can only be run on remote targets."));
1875 trace_stop_command (char *args
, int from_tty
)
1877 if (target_is_remote ())
1880 remote_get_noisy_reply (&target_buf
, &target_buf_size
);
1881 if (strcmp (target_buf
, "OK"))
1882 error (_("Bogus reply from target: %s"), target_buf
);
1883 trace_running_p
= 0;
1884 if (deprecated_trace_start_stop_hook
)
1885 deprecated_trace_start_stop_hook (0, from_tty
);
1888 error (_("Trace can only be run on remote targets."));
1891 unsigned long trace_running_p
;
1893 /* tstatus command */
1895 trace_status_command (char *args
, int from_tty
)
1897 if (target_is_remote ())
1899 putpkt ("qTStatus");
1900 remote_get_noisy_reply (&target_buf
, &target_buf_size
);
1902 if (target_buf
[0] != 'T' ||
1903 (target_buf
[1] != '0' && target_buf
[1] != '1'))
1904 error (_("Bogus reply from target: %s"), target_buf
);
1906 /* exported for use by the GUI */
1907 trace_running_p
= (target_buf
[1] == '1');
1910 error (_("Trace can only be run on remote targets."));
1913 /* Worker function for the various flavors of the tfind command. */
1915 finish_tfind_command (char **msg
,
1919 int target_frameno
= -1, target_tracept
= -1;
1920 CORE_ADDR old_frame_addr
;
1921 struct symbol
*old_func
;
1924 old_frame_addr
= get_frame_base (get_current_frame ());
1925 old_func
= find_pc_function (read_pc ());
1928 reply
= remote_get_noisy_reply (msg
, sizeof_msg
);
1930 while (reply
&& *reply
)
1934 if ((target_frameno
= (int) strtol (++reply
, &reply
, 16)) == -1)
1936 /* A request for a non-existant trace frame has failed.
1937 Our response will be different, depending on FROM_TTY:
1939 If FROM_TTY is true, meaning that this command was
1940 typed interactively by the user, then give an error
1941 and DO NOT change the state of traceframe_number etc.
1943 However if FROM_TTY is false, meaning that we're either
1944 in a script, a loop, or a user-defined command, then
1945 DON'T give an error, but DO change the state of
1946 traceframe_number etc. to invalid.
1948 The rationalle is that if you typed the command, you
1949 might just have committed a typo or something, and you'd
1950 like to NOT lose your current debugging state. However
1951 if you're in a user-defined command or especially in a
1952 loop, then you need a way to detect that the command
1953 failed WITHOUT aborting. This allows you to write
1954 scripts that search thru the trace buffer until the end,
1955 and then continue on to do something else. */
1958 error (_("Target failed to find requested trace frame."));
1962 printf_filtered ("End of trace buffer.\n");
1963 /* The following will not recurse, since it's
1965 trace_find_command ("-1", from_tty
);
1966 reply
= NULL
; /* Break out of loop
1967 (avoid recursive nonsense). */
1972 if ((target_tracept
= (int) strtol (++reply
, &reply
, 16)) == -1)
1973 error (_("Target failed to find requested trace frame."));
1975 case 'O': /* "OK"? */
1976 if (reply
[1] == 'K' && reply
[2] == '\0')
1979 error (_("Bogus reply from target: %s"), reply
);
1982 error (_("Bogus reply from target: %s"), reply
);
1985 reinit_frame_cache ();
1986 registers_changed ();
1987 set_traceframe_num (target_frameno
);
1988 set_tracepoint_num (target_tracept
);
1989 if (target_frameno
== -1)
1990 set_traceframe_context (-1);
1992 set_traceframe_context (read_pc ());
1996 enum print_what print_what
;
1998 /* NOTE: in immitation of the step command, try to determine
1999 whether we have made a transition from one function to
2000 another. If so, we'll print the "stack frame" (ie. the new
2001 function and it's arguments) -- otherwise we'll just show the
2004 This determination is made by checking (1) whether the
2005 current function has changed, and (2) whether the current FP
2006 has changed. Hack: if the FP wasn't collected, either at the
2007 current or the previous frame, assume that the FP has NOT
2010 if (old_func
== find_pc_function (read_pc ()) &&
2011 (old_frame_addr
== 0 ||
2012 get_frame_base (get_current_frame ()) == 0 ||
2013 old_frame_addr
== get_frame_base (get_current_frame ())))
2014 print_what
= SRC_LINE
;
2016 print_what
= SRC_AND_LOC
;
2018 print_stack_frame (get_selected_frame (NULL
), 1, print_what
);
2023 /* trace_find_command takes a trace frame number n,
2024 sends "QTFrame:<n>" to the target,
2025 and accepts a reply that may contain several optional pieces
2026 of information: a frame number, a tracepoint number, and an
2027 indication of whether this is a trap frame or a stepping frame.
2029 The minimal response is just "OK" (which indicates that the
2030 target does not give us a frame number or a tracepoint number).
2031 Instead of that, the target may send us a string containing
2033 F<hexnum> (gives the selected frame number)
2034 T<hexnum> (gives the selected tracepoint number)
2039 trace_find_command (char *args
, int from_tty
)
2040 { /* this should only be called with a numeric argument */
2043 if (target_is_remote ())
2045 if (deprecated_trace_find_hook
)
2046 deprecated_trace_find_hook (args
, from_tty
);
2048 if (args
== 0 || *args
== 0)
2049 { /* TFIND with no args means find NEXT trace frame. */
2050 if (traceframe_number
== -1)
2051 frameno
= 0; /* "next" is first one */
2053 frameno
= traceframe_number
+ 1;
2055 else if (0 == strcmp (args
, "-"))
2057 if (traceframe_number
== -1)
2058 error (_("not debugging trace buffer"));
2059 else if (from_tty
&& traceframe_number
== 0)
2060 error (_("already at start of trace buffer"));
2062 frameno
= traceframe_number
- 1;
2065 frameno
= parse_and_eval_long (args
);
2068 error (_("invalid input (%d is less than zero)"), frameno
);
2070 sprintf (target_buf
, "QTFrame:%x", frameno
);
2071 finish_tfind_command (&target_buf
, &target_buf_size
, from_tty
);
2074 error (_("Trace can only be run on remote targets."));
2079 trace_find_end_command (char *args
, int from_tty
)
2081 trace_find_command ("-1", from_tty
);
2086 trace_find_none_command (char *args
, int from_tty
)
2088 trace_find_command ("-1", from_tty
);
2093 trace_find_start_command (char *args
, int from_tty
)
2095 trace_find_command ("0", from_tty
);
2098 /* tfind pc command */
2100 trace_find_pc_command (char *args
, int from_tty
)
2105 if (target_is_remote ())
2107 if (args
== 0 || *args
== 0)
2108 pc
= read_pc (); /* default is current pc */
2110 pc
= parse_and_eval_address (args
);
2112 sprintf_vma (tmp
, pc
);
2113 sprintf (target_buf
, "QTFrame:pc:%s", tmp
);
2114 finish_tfind_command (&target_buf
, &target_buf_size
, from_tty
);
2117 error (_("Trace can only be run on remote targets."));
2120 /* tfind tracepoint command */
2122 trace_find_tracepoint_command (char *args
, int from_tty
)
2126 if (target_is_remote ())
2128 if (args
== 0 || *args
== 0)
2130 if (tracepoint_number
== -1)
2131 error (_("No current tracepoint -- please supply an argument."));
2133 tdp
= tracepoint_number
; /* default is current TDP */
2136 tdp
= parse_and_eval_long (args
);
2138 sprintf (target_buf
, "QTFrame:tdp:%x", tdp
);
2139 finish_tfind_command (&target_buf
, &target_buf_size
, from_tty
);
2142 error (_("Trace can only be run on remote targets."));
2145 /* TFIND LINE command:
2147 This command will take a sourceline for argument, just like BREAK
2148 or TRACE (ie. anything that "decode_line_1" can handle).
2150 With no argument, this command will find the next trace frame
2151 corresponding to a source line OTHER THAN THE CURRENT ONE. */
2154 trace_find_line_command (char *args
, int from_tty
)
2156 static CORE_ADDR start_pc
, end_pc
;
2157 struct symtabs_and_lines sals
;
2158 struct symtab_and_line sal
;
2159 struct cleanup
*old_chain
;
2160 char startpc_str
[40], endpc_str
[40];
2162 if (target_is_remote ())
2164 if (args
== 0 || *args
== 0)
2166 sal
= find_pc_line (get_frame_pc (get_current_frame ()), 0);
2168 sals
.sals
= (struct symtab_and_line
*)
2169 xmalloc (sizeof (struct symtab_and_line
));
2174 sals
= decode_line_spec (args
, 1);
2178 old_chain
= make_cleanup (xfree
, sals
.sals
);
2179 if (sal
.symtab
== 0)
2181 printf_filtered ("TFIND: No line number information available");
2184 /* This is useful for "info line *0x7f34". If we can't
2185 tell the user about a source line, at least let them
2186 have the symbolic address. */
2187 printf_filtered (" for address ");
2189 print_address (sal
.pc
, gdb_stdout
);
2190 printf_filtered (";\n -- will attempt to find by PC. \n");
2194 printf_filtered (".\n");
2195 return; /* No line, no PC; what can we do? */
2198 else if (sal
.line
> 0
2199 && find_line_pc_range (sal
, &start_pc
, &end_pc
))
2201 if (start_pc
== end_pc
)
2203 printf_filtered ("Line %d of \"%s\"",
2204 sal
.line
, sal
.symtab
->filename
);
2206 printf_filtered (" is at address ");
2207 print_address (start_pc
, gdb_stdout
);
2209 printf_filtered (" but contains no code.\n");
2210 sal
= find_pc_line (start_pc
, 0);
2212 find_line_pc_range (sal
, &start_pc
, &end_pc
) &&
2214 printf_filtered ("Attempting to find line %d instead.\n",
2217 error (_("Cannot find a good line."));
2221 /* Is there any case in which we get here, and have an address
2222 which the user would want to see? If we have debugging
2223 symbols and no line numbers? */
2224 error (_("Line number %d is out of range for \"%s\"."),
2225 sal
.line
, sal
.symtab
->filename
);
2227 sprintf_vma (startpc_str
, start_pc
);
2228 sprintf_vma (endpc_str
, end_pc
- 1);
2229 /* Find within range of stated line. */
2231 sprintf (target_buf
, "QTFrame:range:%s:%s",
2232 startpc_str
, endpc_str
);
2233 /* Find OUTSIDE OF range of CURRENT line. */
2235 sprintf (target_buf
, "QTFrame:outside:%s:%s",
2236 startpc_str
, endpc_str
);
2237 finish_tfind_command (&target_buf
, &target_buf_size
,
2239 do_cleanups (old_chain
);
2242 error (_("Trace can only be run on remote targets."));
2245 /* tfind range command */
2247 trace_find_range_command (char *args
, int from_tty
)
2249 static CORE_ADDR start
, stop
;
2250 char start_str
[40], stop_str
[40];
2253 if (target_is_remote ())
2255 if (args
== 0 || *args
== 0)
2256 { /* XXX FIXME: what should default behavior be? */
2257 printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n");
2261 if (0 != (tmp
= strchr (args
, ',')))
2263 *tmp
++ = '\0'; /* terminate start address */
2264 while (isspace ((int) *tmp
))
2266 start
= parse_and_eval_address (args
);
2267 stop
= parse_and_eval_address (tmp
);
2270 { /* no explicit end address? */
2271 start
= parse_and_eval_address (args
);
2272 stop
= start
+ 1; /* ??? */
2275 sprintf_vma (start_str
, start
);
2276 sprintf_vma (stop_str
, stop
);
2277 sprintf (target_buf
, "QTFrame:range:%s:%s", start_str
, stop_str
);
2278 finish_tfind_command (&target_buf
, &target_buf_size
, from_tty
);
2281 error (_("Trace can only be run on remote targets."));
2284 /* tfind outside command */
2286 trace_find_outside_command (char *args
, int from_tty
)
2288 CORE_ADDR start
, stop
;
2289 char start_str
[40], stop_str
[40];
2292 if (target_is_remote ())
2294 if (args
== 0 || *args
== 0)
2295 { /* XXX FIXME: what should default behavior be? */
2296 printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n");
2300 if (0 != (tmp
= strchr (args
, ',')))
2302 *tmp
++ = '\0'; /* terminate start address */
2303 while (isspace ((int) *tmp
))
2305 start
= parse_and_eval_address (args
);
2306 stop
= parse_and_eval_address (tmp
);
2309 { /* no explicit end address? */
2310 start
= parse_and_eval_address (args
);
2311 stop
= start
+ 1; /* ??? */
2314 sprintf_vma (start_str
, start
);
2315 sprintf_vma (stop_str
, stop
);
2316 sprintf (target_buf
, "QTFrame:outside:%s:%s", start_str
, stop_str
);
2317 finish_tfind_command (&target_buf
, &target_buf_size
, from_tty
);
2320 error (_("Trace can only be run on remote targets."));
2323 /* save-tracepoints command */
2325 tracepoint_save_command (char *args
, int from_tty
)
2327 struct tracepoint
*tp
;
2328 struct action_line
*line
;
2330 char *i1
= " ", *i2
= " ";
2331 char *indent
, *actionline
, *pathname
;
2334 if (args
== 0 || *args
== 0)
2335 error (_("Argument required (file name in which to save tracepoints)"));
2337 if (tracepoint_chain
== 0)
2339 warning (_("save-tracepoints: no tracepoints to save."));
2343 pathname
= tilde_expand (args
);
2344 if (!(fp
= fopen (pathname
, "w")))
2345 error (_("Unable to open file '%s' for saving tracepoints (%s)"),
2346 args
, safe_strerror (errno
));
2349 ALL_TRACEPOINTS (tp
)
2351 if (tp
->addr_string
)
2352 fprintf (fp
, "trace %s\n", tp
->addr_string
);
2355 sprintf_vma (tmp
, tp
->address
);
2356 fprintf (fp
, "trace *0x%s\n", tmp
);
2360 fprintf (fp
, " passcount %d\n", tp
->pass_count
);
2364 fprintf (fp
, " actions\n");
2366 for (line
= tp
->actions
; line
; line
= line
->next
)
2368 struct cmd_list_element
*cmd
;
2370 QUIT
; /* allow user to bail out with ^C */
2371 actionline
= line
->action
;
2372 while (isspace ((int) *actionline
))
2375 fprintf (fp
, "%s%s\n", indent
, actionline
);
2376 if (*actionline
!= '#') /* skip for comment lines */
2378 cmd
= lookup_cmd (&actionline
, cmdlist
, "", -1, 1);
2380 error (_("Bad action list item: %s"), actionline
);
2381 if (cmd_cfunc_eq (cmd
, while_stepping_pseudocommand
))
2383 else if (cmd_cfunc_eq (cmd
, end_actions_pseudocommand
))
2391 printf_filtered ("Tracepoints saved to file '%s'.\n", args
);
2395 /* info scope command: list the locals for a scope. */
2397 scope_info (char *args
, int from_tty
)
2399 struct symtabs_and_lines sals
;
2401 struct minimal_symbol
*msym
;
2402 struct block
*block
;
2403 char **canonical
, *symname
, *save_args
= args
;
2404 struct dict_iterator iter
;
2407 if (args
== 0 || *args
== 0)
2408 error (_("requires an argument (function, line or *addr) to define a scope"));
2410 sals
= decode_line_1 (&args
, 1, NULL
, 0, &canonical
, NULL
);
2411 if (sals
.nelts
== 0)
2412 return; /* presumably decode_line_1 has already warned */
2414 /* Resolve line numbers to PC */
2415 resolve_sal_pc (&sals
.sals
[0]);
2416 block
= block_for_pc (sals
.sals
[0].pc
);
2420 QUIT
; /* allow user to bail out with ^C */
2421 ALL_BLOCK_SYMBOLS (block
, iter
, sym
)
2423 QUIT
; /* allow user to bail out with ^C */
2425 printf_filtered ("Scope for %s:\n", save_args
);
2428 symname
= DEPRECATED_SYMBOL_NAME (sym
);
2429 if (symname
== NULL
|| *symname
== '\0')
2430 continue; /* probably botched, certainly useless */
2432 printf_filtered ("Symbol %s is ", symname
);
2433 switch (SYMBOL_CLASS (sym
))
2436 case LOC_UNDEF
: /* messed up symbol? */
2437 printf_filtered ("a bogus symbol, class %d.\n",
2438 SYMBOL_CLASS (sym
));
2439 count
--; /* don't count this one */
2442 printf_filtered ("a constant with value %ld (0x%lx)",
2443 SYMBOL_VALUE (sym
), SYMBOL_VALUE (sym
));
2445 case LOC_CONST_BYTES
:
2446 printf_filtered ("constant bytes: ");
2447 if (SYMBOL_TYPE (sym
))
2448 for (j
= 0; j
< TYPE_LENGTH (SYMBOL_TYPE (sym
)); j
++)
2449 fprintf_filtered (gdb_stdout
, " %02x",
2450 (unsigned) SYMBOL_VALUE_BYTES (sym
)[j
]);
2453 printf_filtered ("in static storage at address ");
2454 printf_filtered ("%s", paddress (SYMBOL_VALUE_ADDRESS (sym
)));
2457 printf_filtered ("a local variable in register $%s",
2458 gdbarch_register_name
2459 (current_gdbarch
, SYMBOL_VALUE (sym
)));
2462 printf_filtered ("an argument at stack/frame offset %ld",
2463 SYMBOL_VALUE (sym
));
2466 printf_filtered ("a local variable at frame offset %ld",
2467 SYMBOL_VALUE (sym
));
2470 printf_filtered ("a reference argument at offset %ld",
2471 SYMBOL_VALUE (sym
));
2474 printf_filtered ("an argument in register $%s",
2475 gdbarch_register_name
2476 (current_gdbarch
, SYMBOL_VALUE (sym
)));
2478 case LOC_REGPARM_ADDR
:
2479 printf_filtered ("the address of an argument, in register $%s",
2480 gdbarch_register_name
2481 (current_gdbarch
, SYMBOL_VALUE (sym
)));
2484 printf_filtered ("a typedef.\n");
2487 printf_filtered ("a label at address ");
2488 printf_filtered ("%s", paddress (SYMBOL_VALUE_ADDRESS (sym
)));
2491 printf_filtered ("a function at address ");
2492 printf_filtered ("%s", paddress (BLOCK_START (SYMBOL_BLOCK_VALUE (sym
))));
2495 printf_filtered ("a variable at offset %ld from register $%s",
2497 gdbarch_register_name
2498 (current_gdbarch
, SYMBOL_BASEREG (sym
)));
2500 case LOC_BASEREG_ARG
:
2501 printf_filtered ("an argument at offset %ld from register $%s",
2503 gdbarch_register_name
2504 (current_gdbarch
, SYMBOL_BASEREG (sym
)));
2506 case LOC_UNRESOLVED
:
2507 msym
= lookup_minimal_symbol (DEPRECATED_SYMBOL_NAME (sym
),
2510 printf_filtered ("Unresolved Static");
2513 printf_filtered ("static storage at address ");
2514 printf_filtered ("%s", paddress (SYMBOL_VALUE_ADDRESS (msym
)));
2517 case LOC_OPTIMIZED_OUT
:
2518 printf_filtered ("optimized out.\n");
2521 case LOC_COMPUTED_ARG
:
2522 SYMBOL_OPS (sym
)->describe_location (sym
, gdb_stdout
);
2525 if (SYMBOL_TYPE (sym
))
2526 printf_filtered (", length %d.\n",
2527 TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym
))));
2529 if (BLOCK_FUNCTION (block
))
2532 block
= BLOCK_SUPERBLOCK (block
);
2535 printf_filtered ("Scope for %s contains no locals or arguments.\n",
2539 /* worker function (cleanup) */
2541 replace_comma (void *data
)
2549 trace_dump_command (char *args
, int from_tty
)
2551 struct regcache
*regcache
;
2552 struct gdbarch
*gdbarch
;
2553 struct tracepoint
*t
;
2554 struct action_line
*action
;
2555 char *action_exp
, *next_comma
;
2556 struct cleanup
*old_cleanups
;
2557 int stepping_actions
= 0;
2558 int stepping_frame
= 0;
2560 if (!target_is_remote ())
2562 error (_("Trace can only be run on remote targets."));
2566 if (tracepoint_number
== -1)
2568 warning (_("No current trace frame."));
2573 if (t
->number
== tracepoint_number
)
2577 error (_("No known tracepoint matches 'current' tracepoint #%d."),
2580 old_cleanups
= make_cleanup (null_cleanup
, NULL
);
2582 printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n",
2583 tracepoint_number
, traceframe_number
);
2585 /* The current frame is a trap frame if the frame PC is equal
2586 to the tracepoint PC. If not, then the current frame was
2587 collected during single-stepping. */
2589 regcache
= get_current_regcache ();
2590 gdbarch
= get_regcache_arch (regcache
);
2592 stepping_frame
= (t
->address
!= (regcache_read_pc (regcache
)
2593 - gdbarch_decr_pc_after_break (gdbarch
)));
2595 for (action
= t
->actions
; action
; action
= action
->next
)
2597 struct cmd_list_element
*cmd
;
2599 QUIT
; /* allow user to bail out with ^C */
2600 action_exp
= action
->action
;
2601 while (isspace ((int) *action_exp
))
2604 /* The collection actions to be done while stepping are
2605 bracketed by the commands "while-stepping" and "end". */
2607 if (*action_exp
== '#') /* comment line */
2610 cmd
= lookup_cmd (&action_exp
, cmdlist
, "", -1, 1);
2612 error (_("Bad action list item: %s"), action_exp
);
2614 if (cmd_cfunc_eq (cmd
, while_stepping_pseudocommand
))
2615 stepping_actions
= 1;
2616 else if (cmd_cfunc_eq (cmd
, end_actions_pseudocommand
))
2617 stepping_actions
= 0;
2618 else if (cmd_cfunc_eq (cmd
, collect_pseudocommand
))
2620 /* Display the collected data.
2621 For the trap frame, display only what was collected at
2622 the trap. Likewise for stepping frames, display only
2623 what was collected while stepping. This means that the
2624 two boolean variables, STEPPING_FRAME and
2625 STEPPING_ACTIONS should be equal. */
2626 if (stepping_frame
== stepping_actions
)
2629 { /* repeat over a comma-separated list */
2630 QUIT
; /* allow user to bail out with ^C */
2631 if (*action_exp
== ',')
2633 while (isspace ((int) *action_exp
))
2636 next_comma
= strchr (action_exp
, ',');
2638 if (0 == strncasecmp (action_exp
, "$reg", 4))
2639 registers_info (NULL
, from_tty
);
2640 else if (0 == strncasecmp (action_exp
, "$loc", 4))
2641 locals_info (NULL
, from_tty
);
2642 else if (0 == strncasecmp (action_exp
, "$arg", 4))
2643 args_info (NULL
, from_tty
);
2648 make_cleanup (replace_comma
, next_comma
);
2651 printf_filtered ("%s = ", action_exp
);
2652 output_command (action_exp
, from_tty
);
2653 printf_filtered ("\n");
2657 action_exp
= next_comma
;
2659 while (action_exp
&& *action_exp
== ',');
2663 discard_cleanups (old_cleanups
);
2666 /* Convert the memory pointed to by mem into hex, placing result in buf.
2667 * Return a pointer to the last char put in buf (null)
2668 * "stolen" from sparc-stub.c
2671 static const char hexchars
[] = "0123456789abcdef";
2674 mem2hex (gdb_byte
*mem
, char *buf
, int count
)
2682 *buf
++ = hexchars
[ch
>> 4];
2683 *buf
++ = hexchars
[ch
& 0xf];
2692 get_traceframe_number (void)
2694 return traceframe_number
;
2698 /* module initialization */
2700 _initialize_tracepoint (void)
2702 struct cmd_list_element
*c
;
2704 tracepoint_chain
= 0;
2705 tracepoint_count
= 0;
2706 traceframe_number
= -1;
2707 tracepoint_number
= -1;
2709 if (tracepoint_list
.list
== NULL
)
2711 tracepoint_list
.listsize
= 128;
2712 tracepoint_list
.list
= xmalloc
2713 (tracepoint_list
.listsize
* sizeof (struct memrange
));
2715 if (tracepoint_list
.aexpr_list
== NULL
)
2717 tracepoint_list
.aexpr_listsize
= 128;
2718 tracepoint_list
.aexpr_list
= xmalloc
2719 (tracepoint_list
.aexpr_listsize
* sizeof (struct agent_expr
*));
2722 if (stepping_list
.list
== NULL
)
2724 stepping_list
.listsize
= 128;
2725 stepping_list
.list
= xmalloc
2726 (stepping_list
.listsize
* sizeof (struct memrange
));
2729 if (stepping_list
.aexpr_list
== NULL
)
2731 stepping_list
.aexpr_listsize
= 128;
2732 stepping_list
.aexpr_list
= xmalloc
2733 (stepping_list
.aexpr_listsize
* sizeof (struct agent_expr
*));
2736 add_info ("scope", scope_info
,
2737 _("List the variables local to a scope"));
2739 add_cmd ("tracepoints", class_trace
, NULL
,
2740 _("Tracing of program execution without stopping the program."),
2743 add_info ("tracepoints", tracepoints_info
, _("\
2744 Status of tracepoints, or tracepoint number NUMBER.\n\
2745 Convenience variable \"$tpnum\" contains the number of the\n\
2746 last tracepoint set."));
2748 add_info_alias ("tp", "tracepoints", 1);
2750 c
= add_com ("save-tracepoints", class_trace
, tracepoint_save_command
, _("\
2751 Save current tracepoint definitions as a script.\n\
2752 Use the 'source' command in another debug session to restore them."));
2753 set_cmd_completer (c
, filename_completer
);
2755 add_com ("tdump", class_trace
, trace_dump_command
,
2756 _("Print everything collected at the current tracepoint."));
2758 add_prefix_cmd ("tfind", class_trace
, trace_find_command
, _("\
2759 Select a trace frame;\n\
2760 No argument means forward by one frame; '-' means backward by one frame."),
2761 &tfindlist
, "tfind ", 1, &cmdlist
);
2763 add_cmd ("outside", class_trace
, trace_find_outside_command
, _("\
2764 Select a trace frame whose PC is outside the given range.\n\
2765 Usage: tfind outside addr1, addr2"),
2768 add_cmd ("range", class_trace
, trace_find_range_command
, _("\
2769 Select a trace frame whose PC is in the given range.\n\
2770 Usage: tfind range addr1,addr2"),
2773 add_cmd ("line", class_trace
, trace_find_line_command
, _("\
2774 Select a trace frame by source line.\n\
2775 Argument can be a line number (with optional source file), \n\
2776 a function name, or '*' followed by an address.\n\
2777 Default argument is 'the next source line that was traced'."),
2780 add_cmd ("tracepoint", class_trace
, trace_find_tracepoint_command
, _("\
2781 Select a trace frame by tracepoint number.\n\
2782 Default is the tracepoint for the current trace frame."),
2785 add_cmd ("pc", class_trace
, trace_find_pc_command
, _("\
2786 Select a trace frame by PC.\n\
2787 Default is the current PC, or the PC of the current trace frame."),
2790 add_cmd ("end", class_trace
, trace_find_end_command
, _("\
2791 Synonym for 'none'.\n\
2792 De-select any trace frame and resume 'live' debugging."),
2795 add_cmd ("none", class_trace
, trace_find_none_command
,
2796 _("De-select any trace frame and resume 'live' debugging."),
2799 add_cmd ("start", class_trace
, trace_find_start_command
,
2800 _("Select the first trace frame in the trace buffer."),
2803 add_com ("tstatus", class_trace
, trace_status_command
,
2804 _("Display the status of the current trace data collection."));
2806 add_com ("tstop", class_trace
, trace_stop_command
,
2807 _("Stop trace data collection."));
2809 add_com ("tstart", class_trace
, trace_start_command
,
2810 _("Start trace data collection."));
2812 add_com ("passcount", class_trace
, trace_pass_command
, _("\
2813 Set the passcount for a tracepoint.\n\
2814 The trace will end when the tracepoint has been passed 'count' times.\n\
2815 Usage: passcount COUNT TPNUM, where TPNUM may also be \"all\";\n\
2816 if TPNUM is omitted, passcount refers to the last tracepoint defined."));
2818 add_com ("end", class_trace
, end_actions_pseudocommand
, _("\
2819 Ends a list of commands or actions.\n\
2820 Several GDB commands allow you to enter a list of commands or actions.\n\
2821 Entering \"end\" on a line by itself is the normal way to terminate\n\
2823 Note: the \"end\" command cannot be used at the gdb prompt."));
2825 add_com ("while-stepping", class_trace
, while_stepping_pseudocommand
, _("\
2826 Specify single-stepping behavior at a tracepoint.\n\
2827 Argument is number of instructions to trace in single-step mode\n\
2828 following the tracepoint. This command is normally followed by\n\
2829 one or more \"collect\" commands, to specify what to collect\n\
2830 while single-stepping.\n\n\
2831 Note: this command can only be used in a tracepoint \"actions\" list."));
2833 add_com_alias ("ws", "while-stepping", class_alias
, 0);
2834 add_com_alias ("stepping", "while-stepping", class_alias
, 0);
2836 add_com ("collect", class_trace
, collect_pseudocommand
, _("\
2837 Specify one or more data items to be collected at a tracepoint.\n\
2838 Accepts a comma-separated list of (one or more) expressions. GDB will\n\
2839 collect all data (variables, registers) referenced by that expression.\n\
2840 Also accepts the following special arguments:\n\
2841 $regs -- all registers.\n\
2842 $args -- all function arguments.\n\
2843 $locals -- all variables local to the block/function scope.\n\
2844 Note: this command can only be used in a tracepoint \"actions\" list."));
2846 add_com ("actions", class_trace
, trace_actions_command
, _("\
2847 Specify the actions to be taken at a tracepoint.\n\
2848 Tracepoint actions may include collecting of specified data, \n\
2849 single-stepping, or enabling/disabling other tracepoints, \n\
2850 depending on target's capabilities."));
2852 add_cmd ("tracepoints", class_trace
, delete_trace_command
, _("\
2853 Delete specified tracepoints.\n\
2854 Arguments are tracepoint numbers, separated by spaces.\n\
2855 No argument means delete all tracepoints."),
2858 add_cmd ("tracepoints", class_trace
, disable_trace_command
, _("\
2859 Disable specified tracepoints.\n\
2860 Arguments are tracepoint numbers, separated by spaces.\n\
2861 No argument means disable all tracepoints."),
2864 add_cmd ("tracepoints", class_trace
, enable_trace_command
, _("\
2865 Enable specified tracepoints.\n\
2866 Arguments are tracepoint numbers, separated by spaces.\n\
2867 No argument means enable all tracepoints."),
2870 c
= add_com ("trace", class_trace
, trace_command
, _("\
2871 Set a tracepoint at a specified line or function or address.\n\
2872 Argument may be a line number, function name, or '*' plus an address.\n\
2873 For a line number or function, trace at the start of its code.\n\
2874 If an address is specified, trace at that exact address.\n\n\
2875 Do \"help tracepoints\" for info on other tracepoint commands."));
2876 set_cmd_completer (c
, location_completer
);
2878 add_com_alias ("tp", "trace", class_alias
, 0);
2879 add_com_alias ("tr", "trace", class_alias
, 1);
2880 add_com_alias ("tra", "trace", class_alias
, 1);
2881 add_com_alias ("trac", "trace", class_alias
, 1);
2883 target_buf_size
= 2048;
2884 target_buf
= xmalloc (target_buf_size
);