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 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 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 Boston, MA 02110-1301, USA. */
27 #include "expression.h"
32 #include "gdb_string.h"
34 #include "tracepoint.h"
38 #include "completer.h"
39 #include "gdb-events.h"
41 #include "dictionary.h"
46 /* readline include files */
47 #include "readline/readline.h"
48 #include "readline/history.h"
50 /* readline defines this. */
57 /* Maximum length of an agent aexpression.
58 This accounts for the fact that packets are limited to 400 bytes
59 (which includes everything -- including the checksum), and assumes
60 the worst case of maximum length for each of the pieces of a
63 NOTE: expressions get mem2hex'ed otherwise this would be twice as
64 large. (400 - 31)/2 == 184 */
65 #define MAX_AGENT_EXPR_LEN 184
68 extern void (*deprecated_readline_begin_hook
) (char *, ...);
69 extern char *(*deprecated_readline_hook
) (char *);
70 extern void (*deprecated_readline_end_hook
) (void);
71 extern int addressprint
; /* Print machine addresses? */
73 /* GDB commands implemented in other modules:
76 extern void output_command (char *, int);
81 This module defines the following debugger commands:
82 trace : set a tracepoint on a function, line, or address.
83 info trace : list all debugger-defined tracepoints.
84 delete trace : delete one or more tracepoints.
85 enable trace : enable one or more tracepoints.
86 disable trace : disable one or more tracepoints.
87 actions : specify actions to be taken at a tracepoint.
88 passcount : specify a pass count for a tracepoint.
89 tstart : start a trace experiment.
90 tstop : stop a trace experiment.
91 tstatus : query the status of a trace experiment.
92 tfind : find a trace frame in the trace buffer.
93 tdump : print everything collected at the current tracepoint.
94 save-tracepoints : write tracepoint setup into a file.
96 This module defines the following user-visible debugger variables:
97 $trace_frame : sequence number of trace frame currently being debugged.
98 $trace_line : source line of trace frame currently being debugged.
99 $trace_file : source file of trace frame currently being debugged.
100 $tracepoint : tracepoint number of trace frame currently being debugged.
104 /* ======= Important global variables: ======= */
106 /* Chain of all tracepoints defined. */
107 struct tracepoint
*tracepoint_chain
;
109 /* Number of last tracepoint made. */
110 static int tracepoint_count
;
112 /* Number of last traceframe collected. */
113 static int traceframe_number
;
115 /* Tracepoint for last traceframe collected. */
116 static int tracepoint_number
;
118 /* Symbol for function for last traceframe collected */
119 static struct symbol
*traceframe_fun
;
121 /* Symtab and line for last traceframe collected */
122 static struct symtab_and_line traceframe_sal
;
124 /* Tracing command lists */
125 static struct cmd_list_element
*tfindlist
;
127 /* ======= Important command functions: ======= */
128 static void trace_command (char *, int);
129 static void tracepoints_info (char *, int);
130 static void delete_trace_command (char *, int);
131 static void enable_trace_command (char *, int);
132 static void disable_trace_command (char *, int);
133 static void trace_pass_command (char *, int);
134 static void trace_actions_command (char *, int);
135 static void trace_start_command (char *, int);
136 static void trace_stop_command (char *, int);
137 static void trace_status_command (char *, int);
138 static void trace_find_command (char *, int);
139 static void trace_find_pc_command (char *, int);
140 static void trace_find_tracepoint_command (char *, int);
141 static void trace_find_line_command (char *, int);
142 static void trace_find_range_command (char *, int);
143 static void trace_find_outside_command (char *, int);
144 static void tracepoint_save_command (char *, int);
145 static void trace_dump_command (char *, int);
147 /* support routines */
148 static void trace_mention (struct tracepoint
*);
150 struct collection_list
;
151 static void add_aexpr (struct collection_list
*, struct agent_expr
*);
152 static char *mem2hex (gdb_byte
*, char *, int);
153 static void add_register (struct collection_list
*collection
,
155 static struct cleanup
*make_cleanup_free_actions (struct tracepoint
*t
);
156 static void free_actions_list (char **actions_list
);
157 static void free_actions_list_cleanup_wrapper (void *);
159 extern void _initialize_tracepoint (void);
161 /* Utility: returns true if "target remote" */
163 target_is_remote (void)
165 if (current_target
.to_shortname
&&
166 (strcmp (current_target
.to_shortname
, "remote") == 0
167 || strcmp (current_target
.to_shortname
, "extended-remote") == 0))
173 /* Utility: generate error from an incoming stub packet. */
175 trace_error (char *buf
)
178 return; /* not an error msg */
181 case '1': /* malformed packet error */
182 if (*++buf
== '0') /* general case: */
183 error (_("tracepoint.c: error in outgoing packet."));
185 error (_("tracepoint.c: error in outgoing packet at field #%ld."),
186 strtol (buf
, NULL
, 16));
188 error (_("trace API error 0x%s."), ++buf
);
190 error (_("Target returns error code '%s'."), buf
);
194 /* Utility: wait for reply from stub, while accepting "O" packets. */
196 remote_get_noisy_reply (char **buf_p
,
199 do /* Loop on reply from remote stub. */
202 QUIT
; /* allow user to bail out with ^C */
203 getpkt (buf_p
, sizeof_buf
, 0);
206 error (_("Target does not support this command."));
207 else if (buf
[0] == 'E')
209 else if (buf
[0] == 'O' &&
211 remote_console_output (buf
+ 1); /* 'O' message from stub */
213 return buf
; /* here's the actual reply */
218 /* Set tracepoint count to NUM. */
220 set_tracepoint_count (int num
)
222 tracepoint_count
= num
;
223 set_internalvar (lookup_internalvar ("tpnum"),
224 value_from_longest (builtin_type_int
, (LONGEST
) num
));
227 /* Set traceframe number to NUM. */
229 set_traceframe_num (int num
)
231 traceframe_number
= num
;
232 set_internalvar (lookup_internalvar ("trace_frame"),
233 value_from_longest (builtin_type_int
, (LONGEST
) num
));
236 /* Set tracepoint number to NUM. */
238 set_tracepoint_num (int num
)
240 tracepoint_number
= num
;
241 set_internalvar (lookup_internalvar ("tracepoint"),
242 value_from_longest (builtin_type_int
,
246 /* Set externally visible debug variables for querying/printing
247 the traceframe context (line, function, file) */
250 set_traceframe_context (CORE_ADDR trace_pc
)
252 static struct type
*func_string
, *file_string
;
253 static struct type
*func_range
, *file_range
;
254 struct value
*func_val
;
255 struct value
*file_val
;
256 static struct type
*charstar
;
259 if (charstar
== (struct type
*) NULL
)
260 charstar
= lookup_pointer_type (builtin_type_char
);
262 if (trace_pc
== -1) /* Cease debugging any trace buffers. */
265 traceframe_sal
.pc
= traceframe_sal
.line
= 0;
266 traceframe_sal
.symtab
= NULL
;
267 set_internalvar (lookup_internalvar ("trace_func"),
268 value_from_pointer (charstar
, (LONGEST
) 0));
269 set_internalvar (lookup_internalvar ("trace_file"),
270 value_from_pointer (charstar
, (LONGEST
) 0));
271 set_internalvar (lookup_internalvar ("trace_line"),
272 value_from_longest (builtin_type_int
,
277 /* Save as globals for internal use. */
278 traceframe_sal
= find_pc_line (trace_pc
, 0);
279 traceframe_fun
= find_pc_function (trace_pc
);
281 /* Save linenumber as "$trace_line", a debugger variable visible to
283 set_internalvar (lookup_internalvar ("trace_line"),
284 value_from_longest (builtin_type_int
,
285 (LONGEST
) traceframe_sal
.line
));
287 /* Save func name as "$trace_func", a debugger variable visible to
289 if (traceframe_fun
== NULL
||
290 DEPRECATED_SYMBOL_NAME (traceframe_fun
) == NULL
)
291 set_internalvar (lookup_internalvar ("trace_func"),
292 value_from_pointer (charstar
, (LONGEST
) 0));
295 len
= strlen (DEPRECATED_SYMBOL_NAME (traceframe_fun
));
296 func_range
= create_range_type (func_range
,
297 builtin_type_int
, 0, len
- 1);
298 func_string
= create_array_type (func_string
,
299 builtin_type_char
, func_range
);
300 func_val
= allocate_value (func_string
);
301 deprecated_set_value_type (func_val
, func_string
);
302 memcpy (value_contents_raw (func_val
),
303 DEPRECATED_SYMBOL_NAME (traceframe_fun
),
305 deprecated_set_value_modifiable (func_val
, 0);
306 set_internalvar (lookup_internalvar ("trace_func"), func_val
);
309 /* Save file name as "$trace_file", a debugger variable visible to
311 if (traceframe_sal
.symtab
== NULL
||
312 traceframe_sal
.symtab
->filename
== NULL
)
313 set_internalvar (lookup_internalvar ("trace_file"),
314 value_from_pointer (charstar
, (LONGEST
) 0));
317 len
= strlen (traceframe_sal
.symtab
->filename
);
318 file_range
= create_range_type (file_range
,
319 builtin_type_int
, 0, len
- 1);
320 file_string
= create_array_type (file_string
,
321 builtin_type_char
, file_range
);
322 file_val
= allocate_value (file_string
);
323 deprecated_set_value_type (file_val
, file_string
);
324 memcpy (value_contents_raw (file_val
),
325 traceframe_sal
.symtab
->filename
,
327 deprecated_set_value_modifiable (file_val
, 0);
328 set_internalvar (lookup_internalvar ("trace_file"), file_val
);
332 /* Low level routine to set a tracepoint.
333 Returns the tracepoint object so caller can set other things.
334 Does not set the tracepoint number!
335 Does not print anything.
337 ==> This routine should not be called if there is a chance of later
338 error(); otherwise it leaves a bogus tracepoint on the chain.
339 Validate your arguments BEFORE calling this routine! */
341 static struct tracepoint
*
342 set_raw_tracepoint (struct symtab_and_line sal
)
344 struct tracepoint
*t
, *tc
;
345 struct cleanup
*old_chain
;
347 t
= (struct tracepoint
*) xmalloc (sizeof (struct tracepoint
));
348 old_chain
= make_cleanup (xfree
, t
);
349 memset (t
, 0, sizeof (*t
));
351 if (sal
.symtab
== NULL
)
352 t
->source_file
= NULL
;
354 t
->source_file
= savestring (sal
.symtab
->filename
,
355 strlen (sal
.symtab
->filename
));
357 t
->section
= sal
.section
;
358 t
->language
= current_language
->la_language
;
359 t
->input_radix
= input_radix
;
360 t
->line_number
= sal
.line
;
365 t
->addr_string
= NULL
;
367 /* Add this tracepoint to the end of the chain
368 so that a list of tracepoints will come out in order
369 of increasing numbers. */
371 tc
= tracepoint_chain
;
373 tracepoint_chain
= t
;
380 discard_cleanups (old_chain
);
384 /* Set a tracepoint according to ARG (function, linenum or *address). */
386 trace_command (char *arg
, int from_tty
)
388 char **canonical
= (char **) NULL
;
389 struct symtabs_and_lines sals
;
390 struct symtab_and_line sal
;
391 struct tracepoint
*t
;
392 char *addr_start
= 0, *addr_end
= 0;
396 error (_("trace command requires an argument"));
398 if (from_tty
&& info_verbose
)
399 printf_filtered ("TRACE %s\n", arg
);
402 sals
= decode_line_1 (&arg
, 1, (struct symtab
*) NULL
,
403 0, &canonical
, NULL
);
406 return; /* ??? Presumably decode_line_1 has already warned? */
408 /* Resolve all line numbers to PC's */
409 for (i
= 0; i
< sals
.nelts
; i
++)
410 resolve_sal_pc (&sals
.sals
[i
]);
412 /* Now set all the tracepoints. */
413 for (i
= 0; i
< sals
.nelts
; i
++)
417 t
= set_raw_tracepoint (sal
);
418 set_tracepoint_count (tracepoint_count
+ 1);
419 t
->number
= tracepoint_count
;
421 /* If a canonical line spec is needed use that instead of the
423 if (canonical
!= (char **) NULL
&& canonical
[i
] != NULL
)
424 t
->addr_string
= canonical
[i
];
426 t
->addr_string
= savestring (addr_start
, addr_end
- addr_start
);
433 printf_filtered ("Multiple tracepoints were set.\n");
434 printf_filtered ("Use 'delete trace' to delete unwanted tracepoints.\n");
438 /* Tell the user we have just set a tracepoint TP. */
441 trace_mention (struct tracepoint
*tp
)
443 printf_filtered ("Tracepoint %d", tp
->number
);
445 if (addressprint
|| (tp
->source_file
== NULL
))
447 printf_filtered (" at ");
448 deprecated_print_address_numeric (tp
->address
, 1, gdb_stdout
);
451 printf_filtered (": file %s, line %d.",
452 tp
->source_file
, tp
->line_number
);
454 printf_filtered ("\n");
457 /* Print information on tracepoint number TPNUM_EXP, or all if
461 tracepoints_info (char *tpnum_exp
, int from_tty
)
463 struct tracepoint
*t
;
464 struct action_line
*action
;
465 int found_a_tracepoint
= 0;
466 char wrap_indent
[80];
471 tpnum
= parse_and_eval_long (tpnum_exp
);
474 if (tpnum
== -1 || tpnum
== t
->number
)
476 extern int addressprint
; /* Print machine addresses? */
478 if (!found_a_tracepoint
++)
480 printf_filtered ("Num Enb ");
483 if (TARGET_ADDR_BIT
<= 32)
484 printf_filtered ("Address ");
486 printf_filtered ("Address ");
488 printf_filtered ("PassC StepC What\n");
490 strcpy (wrap_indent
, " ");
493 if (TARGET_ADDR_BIT
<= 32)
494 strcat (wrap_indent
, " ");
496 strcat (wrap_indent
, " ");
499 printf_filtered ("%-3d %-3s ", t
->number
,
500 t
->enabled_p
? "y" : "n");
505 if (TARGET_ADDR_BIT
<= 32)
506 tmp
= hex_string_custom (t
->address
& (CORE_ADDR
) 0xffffffff,
509 tmp
= hex_string_custom (t
->address
, 16);
511 printf_filtered ("%s ", tmp
);
513 printf_filtered ("%-5d %-5ld ", t
->pass_count
, t
->step_count
);
517 sym
= find_pc_sect_function (t
->address
, t
->section
);
520 fputs_filtered ("in ", gdb_stdout
);
521 fputs_filtered (SYMBOL_PRINT_NAME (sym
), gdb_stdout
);
522 wrap_here (wrap_indent
);
523 fputs_filtered (" at ", gdb_stdout
);
525 fputs_filtered (t
->source_file
, gdb_stdout
);
526 printf_filtered (":%d", t
->line_number
);
529 print_address_symbolic (t
->address
, gdb_stdout
, demangle
, " ");
531 printf_filtered ("\n");
534 printf_filtered (" Actions for tracepoint %d: \n", t
->number
);
535 for (action
= t
->actions
; action
; action
= action
->next
)
537 printf_filtered ("\t%s\n", action
->action
);
541 if (!found_a_tracepoint
)
544 printf_filtered ("No tracepoints.\n");
546 printf_filtered ("No tracepoint number %d.\n", tpnum
);
550 /* Optimization: the code to parse an enable, disable, or delete TP
551 command is virtually identical except for whether it performs an
552 enable, disable, or delete. Therefore I've combined them into one
553 function with an opcode. */
554 enum tracepoint_opcode
561 /* This function implements enable, disable and delete commands. */
563 tracepoint_operation (struct tracepoint
*t
, int from_tty
,
564 enum tracepoint_opcode opcode
)
566 struct tracepoint
*t2
;
568 if (t
== NULL
) /* no tracepoint operand */
575 tracepoint_modify_event (t
->number
);
579 tracepoint_modify_event (t
->number
);
582 if (tracepoint_chain
== t
)
583 tracepoint_chain
= t
->next
;
588 tracepoint_delete_event (t2
->number
);
594 xfree (t
->addr_string
);
596 xfree (t
->source_file
);
605 /* Utility: parse a tracepoint number and look it up in the list.
606 If MULTI_P is true, there might be a range of tracepoints in ARG.
607 if OPTIONAL_P is true, then if the argument is missing, the most
608 recent tracepoint (tracepoint_count) is returned. */
610 get_tracepoint_by_number (char **arg
, int multi_p
, int optional_p
)
612 struct tracepoint
*t
;
614 char *instring
= arg
== NULL
? NULL
: *arg
;
616 if (arg
== NULL
|| *arg
== NULL
|| ! **arg
)
619 tpnum
= tracepoint_count
;
621 error_no_arg (_("tracepoint number"));
624 tpnum
= multi_p
? get_number_or_range (arg
) : get_number (arg
);
628 if (instring
&& *instring
)
629 printf_filtered ("bad tracepoint number at or near '%s'\n",
632 printf_filtered ("Tracepoint argument missing and no previous tracepoint\n");
637 if (t
->number
== tpnum
)
642 /* FIXME: if we are in the middle of a range we don't want to give
643 a message. The current interface to get_number_or_range doesn't
644 allow us to discover this. */
645 printf_unfiltered ("No tracepoint number %d.\n", tpnum
);
650 parse a list of tracepoint numbers, and call a func for each. */
652 map_args_over_tracepoints (char *args
, int from_tty
,
653 enum tracepoint_opcode opcode
)
655 struct tracepoint
*t
, *tmp
;
657 if (args
== 0 || *args
== 0) /* do them all */
658 ALL_TRACEPOINTS_SAFE (t
, tmp
)
659 tracepoint_operation (t
, from_tty
, opcode
);
663 QUIT
; /* Give user option to bail out with ^C. */
664 t
= get_tracepoint_by_number (&args
, 1, 0);
665 tracepoint_operation (t
, from_tty
, opcode
);
666 while (*args
== ' ' || *args
== '\t')
671 /* The 'enable trace' command enables tracepoints.
672 Not supported by all targets. */
674 enable_trace_command (char *args
, int from_tty
)
677 map_args_over_tracepoints (args
, from_tty
, enable_op
);
680 /* The 'disable trace' command disables tracepoints.
681 Not supported by all targets. */
683 disable_trace_command (char *args
, int from_tty
)
686 map_args_over_tracepoints (args
, from_tty
, disable_op
);
689 /* Remove a tracepoint (or all if no argument) */
691 delete_trace_command (char *args
, int from_tty
)
694 if (!args
|| !*args
) /* No args implies all tracepoints; */
695 if (from_tty
) /* confirm only if from_tty... */
696 if (tracepoint_chain
) /* and if there are tracepoints to
698 if (!query ("Delete all tracepoints? "))
701 map_args_over_tracepoints (args
, from_tty
, delete_op
);
704 /* Set passcount for tracepoint.
706 First command argument is passcount, second is tracepoint number.
707 If tracepoint number omitted, apply to most recently defined.
708 Also accepts special argument "all". */
711 trace_pass_command (char *args
, int from_tty
)
713 struct tracepoint
*t1
= (struct tracepoint
*) -1, *t2
;
717 if (args
== 0 || *args
== 0)
718 error (_("passcount command requires an argument (count + optional TP num)"));
720 count
= strtoul (args
, &args
, 10); /* Count comes first, then TP num. */
722 while (*args
&& isspace ((int) *args
))
725 if (*args
&& strncasecmp (args
, "all", 3) == 0)
727 args
+= 3; /* Skip special argument "all". */
730 error (_("Junk at end of arguments."));
733 t1
= get_tracepoint_by_number (&args
, 1, 1);
740 if (t1
== (struct tracepoint
*) -1 || t1
== t2
)
742 t2
->pass_count
= count
;
743 tracepoint_modify_event (t2
->number
);
745 printf_filtered ("Setting tracepoint %d's passcount to %d\n",
749 t1
= get_tracepoint_by_number (&args
, 1, 0);
755 /* ACTIONS functions: */
757 /* Prototypes for action-parsing utility commands */
758 static void read_actions (struct tracepoint
*);
760 /* The three functions:
761 collect_pseudocommand,
762 while_stepping_pseudocommand, and
763 end_actions_pseudocommand
764 are placeholders for "commands" that are actually ONLY to be used
765 within a tracepoint action list. If the actual function is ever called,
766 it means that somebody issued the "command" at the top level,
767 which is always an error. */
770 end_actions_pseudocommand (char *args
, int from_tty
)
772 error (_("This command cannot be used at the top level."));
776 while_stepping_pseudocommand (char *args
, int from_tty
)
778 error (_("This command can only be used in a tracepoint actions list."));
782 collect_pseudocommand (char *args
, int from_tty
)
784 error (_("This command can only be used in a tracepoint actions list."));
787 /* Enter a list of actions for a tracepoint. */
789 trace_actions_command (char *args
, int from_tty
)
791 struct tracepoint
*t
;
793 char *end_msg
= "End with a line saying just \"end\".";
795 t
= get_tracepoint_by_number (&args
, 0, 1);
798 sprintf (tmpbuf
, "Enter actions for tracepoint %d, one per line.",
803 if (deprecated_readline_begin_hook
)
804 (*deprecated_readline_begin_hook
) ("%s %s\n", tmpbuf
, end_msg
);
805 else if (input_from_terminal_p ())
806 printf_filtered ("%s\n%s\n", tmpbuf
, end_msg
);
810 t
->step_count
= 0; /* read_actions may set this */
813 if (deprecated_readline_end_hook
)
814 (*deprecated_readline_end_hook
) ();
815 /* tracepoints_changed () */
817 /* else just return */
820 /* worker function */
822 read_actions (struct tracepoint
*t
)
825 char *prompt1
= "> ", *prompt2
= " > ";
826 char *prompt
= prompt1
;
827 enum actionline_type linetype
;
828 extern FILE *instream
;
829 struct action_line
*next
= NULL
, *temp
;
830 struct cleanup
*old_chain
;
832 /* Control-C quits instantly if typed while in this loop
833 since it should not wait until the user types a newline. */
835 /* FIXME: kettenis/20010823: Something is wrong here. In this file
836 STOP_SIGNAL is never defined. So this code has been left out, at
837 least for quite a while now. Replacing STOP_SIGNAL with SIGTSTP
838 leads to compilation failures since the variable job_control
839 isn't declared. Leave this alone for now. */
842 signal (STOP_SIGNAL
, handle_stop_sig
);
844 old_chain
= make_cleanup_free_actions (t
);
847 /* Make sure that all output has been output. Some machines may
848 let you get away with leaving out some of the gdb_flush, but
851 gdb_flush (gdb_stdout
);
852 gdb_flush (gdb_stderr
);
854 if (deprecated_readline_hook
&& instream
== NULL
)
855 line
= (*deprecated_readline_hook
) (prompt
);
856 else if (instream
== stdin
&& ISATTY (instream
))
858 line
= gdb_readline_wrapper (prompt
);
859 if (line
&& *line
) /* add it to command history */
863 line
= gdb_readline (0);
868 linetype
= validate_actionline (&line
, t
);
869 if (linetype
== BADLINE
)
870 continue; /* already warned -- collect another line */
872 temp
= xmalloc (sizeof (struct action_line
));
876 if (next
== NULL
) /* first action for this tracepoint? */
877 t
->actions
= next
= temp
;
884 if (linetype
== STEPPING
) /* begin "while-stepping" */
886 if (prompt
== prompt2
)
888 warning (_("Already processing 'while-stepping'"));
892 prompt
= prompt2
; /* change prompt for stepping actions */
894 else if (linetype
== END
)
896 if (prompt
== prompt2
)
898 prompt
= prompt1
; /* end of single-stepping actions */
901 { /* end of actions */
902 if (t
->actions
->next
== NULL
)
904 /* An "end" all by itself with no other actions
905 means this tracepoint has no actions.
906 Discard empty list. */
915 signal (STOP_SIGNAL
, SIG_DFL
);
918 discard_cleanups (old_chain
);
921 /* worker function */
923 validate_actionline (char **line
, struct tracepoint
*t
)
925 struct cmd_list_element
*c
;
926 struct expression
*exp
= NULL
;
927 struct cleanup
*old_chain
= NULL
;
930 /* if EOF is typed, *line is NULL */
934 for (p
= *line
; isspace ((int) *p
);)
937 /* Symbol lookup etc. */
938 if (*p
== '\0') /* empty line: just prompt for another line. */
941 if (*p
== '#') /* comment line */
944 c
= lookup_cmd (&p
, cmdlist
, "", -1, 1);
947 warning (_("'%s' is not an action that I know, or is ambiguous."),
952 if (cmd_cfunc_eq (c
, collect_pseudocommand
))
954 struct agent_expr
*aexpr
;
955 struct agent_reqs areqs
;
958 { /* repeat over a comma-separated list */
959 QUIT
; /* allow user to bail out with ^C */
960 while (isspace ((int) *p
))
963 if (*p
== '$') /* look for special pseudo-symbols */
965 if ((0 == strncasecmp ("reg", p
+ 1, 3)) ||
966 (0 == strncasecmp ("arg", p
+ 1, 3)) ||
967 (0 == strncasecmp ("loc", p
+ 1, 3)))
972 /* else fall thru, treat p as an expression and parse it! */
974 exp
= parse_exp_1 (&p
, block_for_pc (t
->address
), 1);
975 old_chain
= make_cleanup (free_current_contents
, &exp
);
977 if (exp
->elts
[0].opcode
== OP_VAR_VALUE
)
979 if (SYMBOL_CLASS (exp
->elts
[2].symbol
) == LOC_CONST
)
981 warning (_("constant %s (value %ld) will not be collected."),
982 DEPRECATED_SYMBOL_NAME (exp
->elts
[2].symbol
),
983 SYMBOL_VALUE (exp
->elts
[2].symbol
));
986 else if (SYMBOL_CLASS (exp
->elts
[2].symbol
) == LOC_OPTIMIZED_OUT
)
988 warning (_("%s is optimized away and cannot be collected."),
989 DEPRECATED_SYMBOL_NAME (exp
->elts
[2].symbol
));
994 /* We have something to collect, make sure that the expr to
995 bytecode translator can handle it and that it's not too
997 aexpr
= gen_trace_for_expr (t
->address
, exp
);
998 make_cleanup_free_agent_expr (aexpr
);
1000 if (aexpr
->len
> MAX_AGENT_EXPR_LEN
)
1001 error (_("expression too complicated, try simplifying"));
1003 ax_reqs (aexpr
, &areqs
);
1004 (void) make_cleanup (xfree
, areqs
.reg_mask
);
1006 if (areqs
.flaw
!= agent_flaw_none
)
1007 error (_("malformed expression"));
1009 if (areqs
.min_height
< 0)
1010 error (_("gdb: Internal error: expression has min height < 0"));
1012 if (areqs
.max_height
> 20)
1013 error (_("expression too complicated, try simplifying"));
1015 do_cleanups (old_chain
);
1017 while (p
&& *p
++ == ',');
1020 else if (cmd_cfunc_eq (c
, while_stepping_pseudocommand
))
1022 char *steparg
; /* in case warning is necessary */
1024 while (isspace ((int) *p
))
1029 (t
->step_count
= strtol (p
, &p
, 0)) == 0)
1031 warning (_("'%s': bad step-count; command ignored."), *line
);
1036 else if (cmd_cfunc_eq (c
, end_actions_pseudocommand
))
1040 warning (_("'%s' is not a supported tracepoint action."), *line
);
1045 /* worker function */
1047 free_actions (struct tracepoint
*t
)
1049 struct action_line
*line
, *next
;
1051 for (line
= t
->actions
; line
; line
= next
)
1055 xfree (line
->action
);
1062 do_free_actions_cleanup (void *t
)
1067 static struct cleanup
*
1068 make_cleanup_free_actions (struct tracepoint
*t
)
1070 return make_cleanup (do_free_actions_cleanup
, t
);
1074 memrange_absolute
= -1
1079 int type
; /* memrange_absolute for absolute memory range,
1080 else basereg number */
1081 bfd_signed_vma start
;
1085 struct collection_list
1087 unsigned char regs_mask
[32]; /* room for up to 256 regs */
1090 struct memrange
*list
;
1091 long aexpr_listsize
; /* size of array pointed to by expr_list elt */
1092 long next_aexpr_elt
;
1093 struct agent_expr
**aexpr_list
;
1096 tracepoint_list
, stepping_list
;
1098 /* MEMRANGE functions: */
1100 static int memrange_cmp (const void *, const void *);
1102 /* compare memranges for qsort */
1104 memrange_cmp (const void *va
, const void *vb
)
1106 const struct memrange
*a
= va
, *b
= vb
;
1108 if (a
->type
< b
->type
)
1110 if (a
->type
> b
->type
)
1112 if (a
->type
== memrange_absolute
)
1114 if ((bfd_vma
) a
->start
< (bfd_vma
) b
->start
)
1116 if ((bfd_vma
) a
->start
> (bfd_vma
) b
->start
)
1121 if (a
->start
< b
->start
)
1123 if (a
->start
> b
->start
)
1129 /* Sort the memrange list using qsort, and merge adjacent memranges. */
1131 memrange_sortmerge (struct collection_list
*memranges
)
1135 qsort (memranges
->list
, memranges
->next_memrange
,
1136 sizeof (struct memrange
), memrange_cmp
);
1137 if (memranges
->next_memrange
> 0)
1139 for (a
= 0, b
= 1; b
< memranges
->next_memrange
; b
++)
1141 if (memranges
->list
[a
].type
== memranges
->list
[b
].type
&&
1142 memranges
->list
[b
].start
- memranges
->list
[a
].end
<=
1145 /* memrange b starts before memrange a ends; merge them. */
1146 if (memranges
->list
[b
].end
> memranges
->list
[a
].end
)
1147 memranges
->list
[a
].end
= memranges
->list
[b
].end
;
1148 continue; /* next b, same a */
1152 memcpy (&memranges
->list
[a
], &memranges
->list
[b
],
1153 sizeof (struct memrange
));
1155 memranges
->next_memrange
= a
+ 1;
1159 /* Add a register to a collection list. */
1161 add_register (struct collection_list
*collection
, unsigned int regno
)
1164 printf_filtered ("collect register %d\n", regno
);
1165 if (regno
> (8 * sizeof (collection
->regs_mask
)))
1166 error (_("Internal: register number %d too large for tracepoint"),
1168 collection
->regs_mask
[regno
/ 8] |= 1 << (regno
% 8);
1171 /* Add a memrange to a collection list */
1173 add_memrange (struct collection_list
*memranges
,
1174 int type
, bfd_signed_vma base
,
1179 printf_filtered ("(%d,", type
);
1181 printf_filtered (",%ld)\n", len
);
1184 /* type: memrange_absolute == memory, other n == basereg */
1185 memranges
->list
[memranges
->next_memrange
].type
= type
;
1186 /* base: addr if memory, offset if reg relative. */
1187 memranges
->list
[memranges
->next_memrange
].start
= base
;
1188 /* len: we actually save end (base + len) for convenience */
1189 memranges
->list
[memranges
->next_memrange
].end
= base
+ len
;
1190 memranges
->next_memrange
++;
1191 if (memranges
->next_memrange
>= memranges
->listsize
)
1193 memranges
->listsize
*= 2;
1194 memranges
->list
= xrealloc (memranges
->list
,
1195 memranges
->listsize
);
1198 if (type
!= memrange_absolute
) /* Better collect the base register! */
1199 add_register (memranges
, type
);
1202 /* Add a symbol to a collection list. */
1204 collect_symbol (struct collection_list
*collect
,
1206 long frame_regno
, long frame_offset
)
1210 bfd_signed_vma offset
;
1212 len
= TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym
)));
1213 switch (SYMBOL_CLASS (sym
))
1216 printf_filtered ("%s: don't know symbol class %d\n",
1217 DEPRECATED_SYMBOL_NAME (sym
),
1218 SYMBOL_CLASS (sym
));
1221 printf_filtered ("constant %s (value %ld) will not be collected.\n",
1222 DEPRECATED_SYMBOL_NAME (sym
), SYMBOL_VALUE (sym
));
1225 offset
= SYMBOL_VALUE_ADDRESS (sym
);
1230 sprintf_vma (tmp
, offset
);
1231 printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n",
1232 DEPRECATED_SYMBOL_NAME (sym
), len
,
1235 add_memrange (collect
, memrange_absolute
, offset
, len
);
1239 reg
= SYMBOL_VALUE (sym
);
1241 printf_filtered ("LOC_REG[parm] %s: ",
1242 DEPRECATED_SYMBOL_NAME (sym
));
1243 add_register (collect
, reg
);
1244 /* Check for doubles stored in two registers. */
1245 /* FIXME: how about larger types stored in 3 or more regs? */
1246 if (TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_FLT
&&
1247 len
> register_size (current_gdbarch
, reg
))
1248 add_register (collect
, reg
+ 1);
1251 printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n");
1252 printf_filtered (" (will not collect %s)\n",
1253 DEPRECATED_SYMBOL_NAME (sym
));
1257 offset
= frame_offset
+ SYMBOL_VALUE (sym
);
1260 printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ",
1261 DEPRECATED_SYMBOL_NAME (sym
), len
);
1262 printf_vma (offset
);
1263 printf_filtered (" from frame ptr reg %d\n", reg
);
1265 add_memrange (collect
, reg
, offset
, len
);
1267 case LOC_REGPARM_ADDR
:
1268 reg
= SYMBOL_VALUE (sym
);
1272 printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset ",
1273 DEPRECATED_SYMBOL_NAME (sym
), len
);
1274 printf_vma (offset
);
1275 printf_filtered (" from reg %d\n", reg
);
1277 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
);
1293 case LOC_BASEREG_ARG
:
1294 reg
= SYMBOL_BASEREG (sym
);
1295 offset
= SYMBOL_VALUE (sym
);
1298 printf_filtered ("LOC_BASEREG %s: collect %ld bytes at offset ",
1299 DEPRECATED_SYMBOL_NAME (sym
), len
);
1300 printf_vma (offset
);
1301 printf_filtered (" from basereg %d\n", reg
);
1303 add_memrange (collect
, reg
, offset
, len
);
1305 case LOC_UNRESOLVED
:
1306 printf_filtered ("Don't know LOC_UNRESOLVED %s\n",
1307 DEPRECATED_SYMBOL_NAME (sym
));
1309 case LOC_OPTIMIZED_OUT
:
1310 printf_filtered ("%s has been optimized out of existence.\n",
1311 DEPRECATED_SYMBOL_NAME (sym
));
1316 /* Add all locals (or args) symbols to collection list */
1318 add_local_symbols (struct collection_list
*collect
, CORE_ADDR pc
,
1319 long frame_regno
, long frame_offset
, int type
)
1322 struct block
*block
;
1323 struct dict_iterator iter
;
1326 block
= block_for_pc (pc
);
1329 QUIT
; /* allow user to bail out with ^C */
1330 ALL_BLOCK_SYMBOLS (block
, iter
, sym
)
1332 switch (SYMBOL_CLASS (sym
))
1335 warning (_("don't know how to trace local symbol %s"),
1336 DEPRECATED_SYMBOL_NAME (sym
));
1341 if (type
== 'L') /* collecting Locals */
1344 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
;
1498 free_actions_list_cleanup_wrapper (void *al
)
1500 free_actions_list (al
);
1504 free_actions_list (char **actions_list
)
1508 if (actions_list
== 0)
1511 for (ndx
= 0; actions_list
[ndx
]; ndx
++)
1512 xfree (actions_list
[ndx
]);
1514 xfree (actions_list
);
1517 /* Render all actions into gdb protocol. */
1519 encode_actions (struct tracepoint
*t
, char ***tdp_actions
,
1520 char ***stepping_actions
)
1522 static char tdp_buff
[2048], step_buff
[2048];
1524 struct expression
*exp
= NULL
;
1525 struct action_line
*action
;
1527 struct value
*tempval
;
1528 struct collection_list
*collect
;
1529 struct cmd_list_element
*cmd
;
1530 struct agent_expr
*aexpr
;
1532 LONGEST frame_offset
;
1535 clear_collection_list (&tracepoint_list
);
1536 clear_collection_list (&stepping_list
);
1537 collect
= &tracepoint_list
;
1539 *tdp_actions
= NULL
;
1540 *stepping_actions
= NULL
;
1542 TARGET_VIRTUAL_FRAME_POINTER (t
->address
, &frame_reg
, &frame_offset
);
1544 for (action
= t
->actions
; action
; action
= action
->next
)
1546 QUIT
; /* allow user to bail out with ^C */
1547 action_exp
= action
->action
;
1548 while (isspace ((int) *action_exp
))
1551 if (*action_exp
== '#') /* comment line */
1554 cmd
= lookup_cmd (&action_exp
, cmdlist
, "", -1, 1);
1556 error (_("Bad action list item: %s"), action_exp
);
1558 if (cmd_cfunc_eq (cmd
, collect_pseudocommand
))
1561 { /* repeat over a comma-separated list */
1562 QUIT
; /* allow user to bail out with ^C */
1563 while (isspace ((int) *action_exp
))
1566 if (0 == strncasecmp ("$reg", action_exp
, 4))
1568 for (i
= 0; i
< NUM_REGS
; i
++)
1569 add_register (collect
, i
);
1570 action_exp
= strchr (action_exp
, ','); /* more? */
1572 else if (0 == strncasecmp ("$arg", action_exp
, 4))
1574 add_local_symbols (collect
,
1579 action_exp
= strchr (action_exp
, ','); /* more? */
1581 else if (0 == strncasecmp ("$loc", action_exp
, 4))
1583 add_local_symbols (collect
,
1588 action_exp
= strchr (action_exp
, ','); /* more? */
1592 unsigned long addr
, len
;
1593 struct cleanup
*old_chain
= NULL
;
1594 struct cleanup
*old_chain1
= NULL
;
1595 struct agent_reqs areqs
;
1597 exp
= parse_exp_1 (&action_exp
,
1598 block_for_pc (t
->address
), 1);
1599 old_chain
= make_cleanup (free_current_contents
, &exp
);
1601 switch (exp
->elts
[0].opcode
)
1604 i
= exp
->elts
[1].longconst
;
1606 printf_filtered ("OP_REGISTER: ");
1607 add_register (collect
, i
);
1611 /* safe because we know it's a simple expression */
1612 tempval
= evaluate_expression (exp
);
1613 addr
= VALUE_ADDRESS (tempval
) + value_offset (tempval
);
1614 len
= TYPE_LENGTH (check_typedef (exp
->elts
[1].type
));
1615 add_memrange (collect
, memrange_absolute
, addr
, len
);
1619 collect_symbol (collect
,
1620 exp
->elts
[2].symbol
,
1625 default: /* full-fledged expression */
1626 aexpr
= gen_trace_for_expr (t
->address
, exp
);
1628 old_chain1
= make_cleanup_free_agent_expr (aexpr
);
1630 ax_reqs (aexpr
, &areqs
);
1631 if (areqs
.flaw
!= agent_flaw_none
)
1632 error (_("malformed expression"));
1634 if (areqs
.min_height
< 0)
1635 error (_("gdb: Internal error: expression has min height < 0"));
1636 if (areqs
.max_height
> 20)
1637 error (_("expression too complicated, try simplifying"));
1639 discard_cleanups (old_chain1
);
1640 add_aexpr (collect
, aexpr
);
1642 /* take care of the registers */
1643 if (areqs
.reg_mask_len
> 0)
1648 for (ndx1
= 0; ndx1
< areqs
.reg_mask_len
; ndx1
++)
1650 QUIT
; /* allow user to bail out with ^C */
1651 if (areqs
.reg_mask
[ndx1
] != 0)
1653 /* assume chars have 8 bits */
1654 for (ndx2
= 0; ndx2
< 8; ndx2
++)
1655 if (areqs
.reg_mask
[ndx1
] & (1 << ndx2
))
1656 /* it's used -- record it */
1657 add_register (collect
,
1664 do_cleanups (old_chain
);
1667 while (action_exp
&& *action_exp
++ == ',');
1669 else if (cmd_cfunc_eq (cmd
, while_stepping_pseudocommand
))
1671 collect
= &stepping_list
;
1673 else if (cmd_cfunc_eq (cmd
, end_actions_pseudocommand
))
1675 if (collect
== &stepping_list
) /* end stepping actions */
1676 collect
= &tracepoint_list
;
1678 break; /* end tracepoint actions */
1681 memrange_sortmerge (&tracepoint_list
);
1682 memrange_sortmerge (&stepping_list
);
1684 *tdp_actions
= stringify_collection_list (&tracepoint_list
,
1686 *stepping_actions
= stringify_collection_list (&stepping_list
,
1691 add_aexpr (struct collection_list
*collect
, struct agent_expr
*aexpr
)
1693 if (collect
->next_aexpr_elt
>= collect
->aexpr_listsize
)
1695 collect
->aexpr_list
=
1696 xrealloc (collect
->aexpr_list
,
1697 2 * collect
->aexpr_listsize
* sizeof (struct agent_expr
*));
1698 collect
->aexpr_listsize
*= 2;
1700 collect
->aexpr_list
[collect
->next_aexpr_elt
] = aexpr
;
1701 collect
->next_aexpr_elt
++;
1704 static char *target_buf
;
1705 static long target_buf_size
;
1707 /* Set "transparent" memory ranges
1709 Allow trace mechanism to treat text-like sections
1710 (and perhaps all read-only sections) transparently,
1711 i.e. don't reject memory requests from these address ranges
1712 just because they haven't been collected. */
1715 remote_set_transparent_ranges (void)
1717 extern bfd
*exec_bfd
;
1724 return; /* No information to give. */
1726 strcpy (target_buf
, "QTro");
1727 for (s
= exec_bfd
->sections
; s
; s
= s
->next
)
1729 char tmp1
[40], tmp2
[40];
1731 if ((s
->flags
& SEC_LOAD
) == 0 ||
1732 /* (s->flags & SEC_CODE) == 0 || */
1733 (s
->flags
& SEC_READONLY
) == 0)
1738 size
= bfd_get_section_size (s
);
1739 sprintf_vma (tmp1
, lma
);
1740 sprintf_vma (tmp2
, lma
+ size
);
1741 sprintf (target_buf
+ strlen (target_buf
),
1742 ":%s,%s", tmp1
, tmp2
);
1746 putpkt (target_buf
);
1747 getpkt (&target_buf
, &target_buf_size
, 0);
1753 Tell target to clear any previous trace experiment.
1754 Walk the list of tracepoints, and send them (and their actions)
1755 to the target. If no errors,
1756 Tell target to start a new trace experiment. */
1759 trace_start_command (char *args
, int from_tty
)
1761 struct tracepoint
*t
;
1764 char **stepping_actions
;
1766 struct cleanup
*old_chain
= NULL
;
1768 dont_repeat (); /* Like "run", dangerous to repeat accidentally. */
1770 if (target_is_remote ())
1773 remote_get_noisy_reply (&target_buf
, &target_buf_size
);
1774 if (strcmp (target_buf
, "OK"))
1775 error (_("Target does not support this command."));
1781 sprintf_vma (tmp
, t
->address
);
1782 sprintf (buf
, "QTDP:%x:%s:%c:%lx:%x", t
->number
,
1784 t
->enabled_p
? 'E' : 'D',
1785 t
->step_count
, t
->pass_count
);
1790 remote_get_noisy_reply (&target_buf
, &target_buf_size
);
1791 if (strcmp (target_buf
, "OK"))
1792 error (_("Target does not support tracepoints."));
1796 encode_actions (t
, &tdp_actions
, &stepping_actions
);
1797 old_chain
= make_cleanup (free_actions_list_cleanup_wrapper
,
1799 (void) make_cleanup (free_actions_list_cleanup_wrapper
,
1802 /* do_single_steps (t); */
1805 for (ndx
= 0; tdp_actions
[ndx
]; ndx
++)
1807 QUIT
; /* allow user to bail out with ^C */
1808 sprintf (buf
, "QTDP:-%x:%s:%s%c",
1809 t
->number
, tmp
, /* address */
1811 ((tdp_actions
[ndx
+ 1] || stepping_actions
)
1814 remote_get_noisy_reply (&target_buf
,
1816 if (strcmp (target_buf
, "OK"))
1817 error (_("Error on target while setting tracepoints."));
1820 if (stepping_actions
)
1822 for (ndx
= 0; stepping_actions
[ndx
]; ndx
++)
1824 QUIT
; /* allow user to bail out with ^C */
1825 sprintf (buf
, "QTDP:-%x:%s:%s%s%s",
1826 t
->number
, tmp
, /* address */
1827 ((ndx
== 0) ? "S" : ""),
1828 stepping_actions
[ndx
],
1829 (stepping_actions
[ndx
+ 1] ? "-" : ""));
1831 remote_get_noisy_reply (&target_buf
,
1833 if (strcmp (target_buf
, "OK"))
1834 error (_("Error on target while setting tracepoints."));
1838 do_cleanups (old_chain
);
1841 /* Tell target to treat text-like sections as transparent. */
1842 remote_set_transparent_ranges ();
1843 /* Now insert traps and begin collecting data. */
1845 remote_get_noisy_reply (&target_buf
, &target_buf_size
);
1846 if (strcmp (target_buf
, "OK"))
1847 error (_("Bogus reply from target: %s"), target_buf
);
1848 set_traceframe_num (-1); /* All old traceframes invalidated. */
1849 set_tracepoint_num (-1);
1850 set_traceframe_context (-1);
1851 trace_running_p
= 1;
1852 if (deprecated_trace_start_stop_hook
)
1853 deprecated_trace_start_stop_hook (1, from_tty
);
1857 error (_("Trace can only be run on remote targets."));
1862 trace_stop_command (char *args
, int from_tty
)
1864 if (target_is_remote ())
1867 remote_get_noisy_reply (&target_buf
, &target_buf_size
);
1868 if (strcmp (target_buf
, "OK"))
1869 error (_("Bogus reply from target: %s"), target_buf
);
1870 trace_running_p
= 0;
1871 if (deprecated_trace_start_stop_hook
)
1872 deprecated_trace_start_stop_hook (0, from_tty
);
1875 error (_("Trace can only be run on remote targets."));
1878 unsigned long trace_running_p
;
1880 /* tstatus command */
1882 trace_status_command (char *args
, int from_tty
)
1884 if (target_is_remote ())
1886 putpkt ("qTStatus");
1887 remote_get_noisy_reply (&target_buf
, &target_buf_size
);
1889 if (target_buf
[0] != 'T' ||
1890 (target_buf
[1] != '0' && target_buf
[1] != '1'))
1891 error (_("Bogus reply from target: %s"), target_buf
);
1893 /* exported for use by the GUI */
1894 trace_running_p
= (target_buf
[1] == '1');
1897 error (_("Trace can only be run on remote targets."));
1900 /* Worker function for the various flavors of the tfind command. */
1902 finish_tfind_command (char **msg
,
1906 int target_frameno
= -1, target_tracept
= -1;
1907 CORE_ADDR old_frame_addr
;
1908 struct symbol
*old_func
;
1911 old_frame_addr
= get_frame_base (get_current_frame ());
1912 old_func
= find_pc_function (read_pc ());
1915 reply
= remote_get_noisy_reply (msg
, sizeof_msg
);
1917 while (reply
&& *reply
)
1921 if ((target_frameno
= (int) strtol (++reply
, &reply
, 16)) == -1)
1923 /* A request for a non-existant trace frame has failed.
1924 Our response will be different, depending on FROM_TTY:
1926 If FROM_TTY is true, meaning that this command was
1927 typed interactively by the user, then give an error
1928 and DO NOT change the state of traceframe_number etc.
1930 However if FROM_TTY is false, meaning that we're either
1931 in a script, a loop, or a user-defined command, then
1932 DON'T give an error, but DO change the state of
1933 traceframe_number etc. to invalid.
1935 The rationalle is that if you typed the command, you
1936 might just have committed a typo or something, and you'd
1937 like to NOT lose your current debugging state. However
1938 if you're in a user-defined command or especially in a
1939 loop, then you need a way to detect that the command
1940 failed WITHOUT aborting. This allows you to write
1941 scripts that search thru the trace buffer until the end,
1942 and then continue on to do something else. */
1945 error (_("Target failed to find requested trace frame."));
1949 printf_filtered ("End of trace buffer.\n");
1950 /* The following will not recurse, since it's
1952 trace_find_command ("-1", from_tty
);
1953 reply
= NULL
; /* Break out of loop
1954 (avoid recursive nonsense). */
1959 if ((target_tracept
= (int) strtol (++reply
, &reply
, 16)) == -1)
1960 error (_("Target failed to find requested trace frame."));
1962 case 'O': /* "OK"? */
1963 if (reply
[1] == 'K' && reply
[2] == '\0')
1966 error (_("Bogus reply from target: %s"), reply
);
1969 error (_("Bogus reply from target: %s"), reply
);
1972 reinit_frame_cache ();
1973 registers_changed ();
1974 set_traceframe_num (target_frameno
);
1975 set_tracepoint_num (target_tracept
);
1976 if (target_frameno
== -1)
1977 set_traceframe_context (-1);
1979 set_traceframe_context (read_pc ());
1983 enum print_what print_what
;
1985 /* NOTE: in immitation of the step command, try to determine
1986 whether we have made a transition from one function to
1987 another. If so, we'll print the "stack frame" (ie. the new
1988 function and it's arguments) -- otherwise we'll just show the
1991 This determination is made by checking (1) whether the
1992 current function has changed, and (2) whether the current FP
1993 has changed. Hack: if the FP wasn't collected, either at the
1994 current or the previous frame, assume that the FP has NOT
1997 if (old_func
== find_pc_function (read_pc ()) &&
1998 (old_frame_addr
== 0 ||
1999 get_frame_base (get_current_frame ()) == 0 ||
2000 old_frame_addr
== get_frame_base (get_current_frame ())))
2001 print_what
= SRC_LINE
;
2003 print_what
= SRC_AND_LOC
;
2005 print_stack_frame (get_selected_frame (NULL
), 1, print_what
);
2010 /* trace_find_command takes a trace frame number n,
2011 sends "QTFrame:<n>" to the target,
2012 and accepts a reply that may contain several optional pieces
2013 of information: a frame number, a tracepoint number, and an
2014 indication of whether this is a trap frame or a stepping frame.
2016 The minimal response is just "OK" (which indicates that the
2017 target does not give us a frame number or a tracepoint number).
2018 Instead of that, the target may send us a string containing
2020 F<hexnum> (gives the selected frame number)
2021 T<hexnum> (gives the selected tracepoint number)
2026 trace_find_command (char *args
, int from_tty
)
2027 { /* this should only be called with a numeric argument */
2030 if (target_is_remote ())
2032 if (deprecated_trace_find_hook
)
2033 deprecated_trace_find_hook (args
, from_tty
);
2035 if (args
== 0 || *args
== 0)
2036 { /* TFIND with no args means find NEXT trace frame. */
2037 if (traceframe_number
== -1)
2038 frameno
= 0; /* "next" is first one */
2040 frameno
= traceframe_number
+ 1;
2042 else if (0 == strcmp (args
, "-"))
2044 if (traceframe_number
== -1)
2045 error (_("not debugging trace buffer"));
2046 else if (from_tty
&& traceframe_number
== 0)
2047 error (_("already at start of trace buffer"));
2049 frameno
= traceframe_number
- 1;
2052 frameno
= parse_and_eval_long (args
);
2055 error (_("invalid input (%d is less than zero)"), frameno
);
2057 sprintf (target_buf
, "QTFrame:%x", frameno
);
2058 finish_tfind_command (&target_buf
, &target_buf_size
, from_tty
);
2061 error (_("Trace can only be run on remote targets."));
2066 trace_find_end_command (char *args
, int from_tty
)
2068 trace_find_command ("-1", from_tty
);
2073 trace_find_none_command (char *args
, int from_tty
)
2075 trace_find_command ("-1", from_tty
);
2080 trace_find_start_command (char *args
, int from_tty
)
2082 trace_find_command ("0", from_tty
);
2085 /* tfind pc command */
2087 trace_find_pc_command (char *args
, int from_tty
)
2092 if (target_is_remote ())
2094 if (args
== 0 || *args
== 0)
2095 pc
= read_pc (); /* default is current pc */
2097 pc
= parse_and_eval_address (args
);
2099 sprintf_vma (tmp
, pc
);
2100 sprintf (target_buf
, "QTFrame:pc:%s", tmp
);
2101 finish_tfind_command (&target_buf
, &target_buf_size
, from_tty
);
2104 error (_("Trace can only be run on remote targets."));
2107 /* tfind tracepoint command */
2109 trace_find_tracepoint_command (char *args
, int from_tty
)
2113 if (target_is_remote ())
2115 if (args
== 0 || *args
== 0)
2117 if (tracepoint_number
== -1)
2118 error (_("No current tracepoint -- please supply an argument."));
2120 tdp
= tracepoint_number
; /* default is current TDP */
2123 tdp
= parse_and_eval_long (args
);
2125 sprintf (target_buf
, "QTFrame:tdp:%x", tdp
);
2126 finish_tfind_command (&target_buf
, &target_buf_size
, from_tty
);
2129 error (_("Trace can only be run on remote targets."));
2132 /* TFIND LINE command:
2134 This command will take a sourceline for argument, just like BREAK
2135 or TRACE (ie. anything that "decode_line_1" can handle).
2137 With no argument, this command will find the next trace frame
2138 corresponding to a source line OTHER THAN THE CURRENT ONE. */
2141 trace_find_line_command (char *args
, int from_tty
)
2143 static CORE_ADDR start_pc
, end_pc
;
2144 struct symtabs_and_lines sals
;
2145 struct symtab_and_line sal
;
2146 struct cleanup
*old_chain
;
2147 char startpc_str
[40], endpc_str
[40];
2149 if (target_is_remote ())
2151 if (args
== 0 || *args
== 0)
2153 sal
= find_pc_line (get_frame_pc (get_current_frame ()), 0);
2155 sals
.sals
= (struct symtab_and_line
*)
2156 xmalloc (sizeof (struct symtab_and_line
));
2161 sals
= decode_line_spec (args
, 1);
2165 old_chain
= make_cleanup (xfree
, sals
.sals
);
2166 if (sal
.symtab
== 0)
2168 printf_filtered ("TFIND: No line number information available");
2171 /* This is useful for "info line *0x7f34". If we can't
2172 tell the user about a source line, at least let them
2173 have the symbolic address. */
2174 printf_filtered (" for address ");
2176 print_address (sal
.pc
, gdb_stdout
);
2177 printf_filtered (";\n -- will attempt to find by PC. \n");
2181 printf_filtered (".\n");
2182 return; /* No line, no PC; what can we do? */
2185 else if (sal
.line
> 0
2186 && find_line_pc_range (sal
, &start_pc
, &end_pc
))
2188 if (start_pc
== end_pc
)
2190 printf_filtered ("Line %d of \"%s\"",
2191 sal
.line
, sal
.symtab
->filename
);
2193 printf_filtered (" is at address ");
2194 print_address (start_pc
, gdb_stdout
);
2196 printf_filtered (" but contains no code.\n");
2197 sal
= find_pc_line (start_pc
, 0);
2199 find_line_pc_range (sal
, &start_pc
, &end_pc
) &&
2201 printf_filtered ("Attempting to find line %d instead.\n",
2204 error (_("Cannot find a good line."));
2208 /* Is there any case in which we get here, and have an address
2209 which the user would want to see? If we have debugging
2210 symbols and no line numbers? */
2211 error (_("Line number %d is out of range for \"%s\"."),
2212 sal
.line
, sal
.symtab
->filename
);
2214 sprintf_vma (startpc_str
, start_pc
);
2215 sprintf_vma (endpc_str
, end_pc
- 1);
2216 /* Find within range of stated line. */
2218 sprintf (target_buf
, "QTFrame:range:%s:%s",
2219 startpc_str
, endpc_str
);
2220 /* Find OUTSIDE OF range of CURRENT line. */
2222 sprintf (target_buf
, "QTFrame:outside:%s:%s",
2223 startpc_str
, endpc_str
);
2224 finish_tfind_command (&target_buf
, &target_buf_size
,
2226 do_cleanups (old_chain
);
2229 error (_("Trace can only be run on remote targets."));
2232 /* tfind range command */
2234 trace_find_range_command (char *args
, int from_tty
)
2236 static CORE_ADDR start
, stop
;
2237 char start_str
[40], stop_str
[40];
2240 if (target_is_remote ())
2242 if (args
== 0 || *args
== 0)
2243 { /* XXX FIXME: what should default behavior be? */
2244 printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n");
2248 if (0 != (tmp
= strchr (args
, ',')))
2250 *tmp
++ = '\0'; /* terminate start address */
2251 while (isspace ((int) *tmp
))
2253 start
= parse_and_eval_address (args
);
2254 stop
= parse_and_eval_address (tmp
);
2257 { /* no explicit end address? */
2258 start
= parse_and_eval_address (args
);
2259 stop
= start
+ 1; /* ??? */
2262 sprintf_vma (start_str
, start
);
2263 sprintf_vma (stop_str
, stop
);
2264 sprintf (target_buf
, "QTFrame:range:%s:%s", start_str
, stop_str
);
2265 finish_tfind_command (&target_buf
, &target_buf_size
, from_tty
);
2268 error (_("Trace can only be run on remote targets."));
2271 /* tfind outside command */
2273 trace_find_outside_command (char *args
, int from_tty
)
2275 CORE_ADDR start
, stop
;
2276 char start_str
[40], stop_str
[40];
2279 if (target_is_remote ())
2281 if (args
== 0 || *args
== 0)
2282 { /* XXX FIXME: what should default behavior be? */
2283 printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n");
2287 if (0 != (tmp
= strchr (args
, ',')))
2289 *tmp
++ = '\0'; /* terminate start address */
2290 while (isspace ((int) *tmp
))
2292 start
= parse_and_eval_address (args
);
2293 stop
= parse_and_eval_address (tmp
);
2296 { /* no explicit end address? */
2297 start
= parse_and_eval_address (args
);
2298 stop
= start
+ 1; /* ??? */
2301 sprintf_vma (start_str
, start
);
2302 sprintf_vma (stop_str
, stop
);
2303 sprintf (target_buf
, "QTFrame:outside:%s:%s", start_str
, stop_str
);
2304 finish_tfind_command (&target_buf
, &target_buf_size
, from_tty
);
2307 error (_("Trace can only be run on remote targets."));
2310 /* save-tracepoints command */
2312 tracepoint_save_command (char *args
, int from_tty
)
2314 struct tracepoint
*tp
;
2315 struct action_line
*line
;
2317 char *i1
= " ", *i2
= " ";
2318 char *indent
, *actionline
, *pathname
;
2321 if (args
== 0 || *args
== 0)
2322 error (_("Argument required (file name in which to save tracepoints)"));
2324 if (tracepoint_chain
== 0)
2326 warning (_("save-tracepoints: no tracepoints to save."));
2330 pathname
= tilde_expand (args
);
2331 if (!(fp
= fopen (pathname
, "w")))
2332 error (_("Unable to open file '%s' for saving tracepoints (%s)"),
2333 args
, safe_strerror (errno
));
2336 ALL_TRACEPOINTS (tp
)
2338 if (tp
->addr_string
)
2339 fprintf (fp
, "trace %s\n", tp
->addr_string
);
2342 sprintf_vma (tmp
, tp
->address
);
2343 fprintf (fp
, "trace *0x%s\n", tmp
);
2347 fprintf (fp
, " passcount %d\n", tp
->pass_count
);
2351 fprintf (fp
, " actions\n");
2353 for (line
= tp
->actions
; line
; line
= line
->next
)
2355 struct cmd_list_element
*cmd
;
2357 QUIT
; /* allow user to bail out with ^C */
2358 actionline
= line
->action
;
2359 while (isspace ((int) *actionline
))
2362 fprintf (fp
, "%s%s\n", indent
, actionline
);
2363 if (*actionline
!= '#') /* skip for comment lines */
2365 cmd
= lookup_cmd (&actionline
, cmdlist
, "", -1, 1);
2367 error (_("Bad action list item: %s"), actionline
);
2368 if (cmd_cfunc_eq (cmd
, while_stepping_pseudocommand
))
2370 else if (cmd_cfunc_eq (cmd
, end_actions_pseudocommand
))
2378 printf_filtered ("Tracepoints saved to file '%s'.\n", args
);
2382 /* info scope command: list the locals for a scope. */
2384 scope_info (char *args
, int from_tty
)
2386 struct symtabs_and_lines sals
;
2388 struct minimal_symbol
*msym
;
2389 struct block
*block
;
2390 char **canonical
, *symname
, *save_args
= args
;
2391 struct dict_iterator iter
;
2394 if (args
== 0 || *args
== 0)
2395 error (_("requires an argument (function, line or *addr) to define a scope"));
2397 sals
= decode_line_1 (&args
, 1, NULL
, 0, &canonical
, NULL
);
2398 if (sals
.nelts
== 0)
2399 return; /* presumably decode_line_1 has already warned */
2401 /* Resolve line numbers to PC */
2402 resolve_sal_pc (&sals
.sals
[0]);
2403 block
= block_for_pc (sals
.sals
[0].pc
);
2407 QUIT
; /* allow user to bail out with ^C */
2408 ALL_BLOCK_SYMBOLS (block
, iter
, sym
)
2410 QUIT
; /* allow user to bail out with ^C */
2412 printf_filtered ("Scope for %s:\n", save_args
);
2415 symname
= DEPRECATED_SYMBOL_NAME (sym
);
2416 if (symname
== NULL
|| *symname
== '\0')
2417 continue; /* probably botched, certainly useless */
2419 printf_filtered ("Symbol %s is ", symname
);
2420 switch (SYMBOL_CLASS (sym
))
2423 case LOC_UNDEF
: /* messed up symbol? */
2424 printf_filtered ("a bogus symbol, class %d.\n",
2425 SYMBOL_CLASS (sym
));
2426 count
--; /* don't count this one */
2429 printf_filtered ("a constant with value %ld (0x%lx)",
2430 SYMBOL_VALUE (sym
), SYMBOL_VALUE (sym
));
2432 case LOC_CONST_BYTES
:
2433 printf_filtered ("constant bytes: ");
2434 if (SYMBOL_TYPE (sym
))
2435 for (j
= 0; j
< TYPE_LENGTH (SYMBOL_TYPE (sym
)); j
++)
2436 fprintf_filtered (gdb_stdout
, " %02x",
2437 (unsigned) SYMBOL_VALUE_BYTES (sym
)[j
]);
2440 printf_filtered ("in static storage at address ");
2441 deprecated_print_address_numeric (SYMBOL_VALUE_ADDRESS (sym
),
2445 printf_filtered ("a local variable in register $%s",
2446 REGISTER_NAME (SYMBOL_VALUE (sym
)));
2450 printf_filtered ("an argument at stack/frame offset %ld",
2451 SYMBOL_VALUE (sym
));
2454 printf_filtered ("a local variable at frame offset %ld",
2455 SYMBOL_VALUE (sym
));
2458 printf_filtered ("a reference argument at offset %ld",
2459 SYMBOL_VALUE (sym
));
2462 printf_filtered ("an argument in register $%s",
2463 REGISTER_NAME (SYMBOL_VALUE (sym
)));
2465 case LOC_REGPARM_ADDR
:
2466 printf_filtered ("the address of an argument, in register $%s",
2467 REGISTER_NAME (SYMBOL_VALUE (sym
)));
2470 printf_filtered ("a typedef.\n");
2473 printf_filtered ("a label at address ");
2474 deprecated_print_address_numeric (SYMBOL_VALUE_ADDRESS (sym
),
2478 printf_filtered ("a function at address ");
2479 deprecated_print_address_numeric (BLOCK_START (SYMBOL_BLOCK_VALUE (sym
)),
2483 printf_filtered ("a variable at offset %ld from register $%s",
2485 REGISTER_NAME (SYMBOL_BASEREG (sym
)));
2487 case LOC_BASEREG_ARG
:
2488 printf_filtered ("an argument at offset %ld from register $%s",
2490 REGISTER_NAME (SYMBOL_BASEREG (sym
)));
2492 case LOC_UNRESOLVED
:
2493 msym
= lookup_minimal_symbol (DEPRECATED_SYMBOL_NAME (sym
),
2496 printf_filtered ("Unresolved Static");
2499 printf_filtered ("static storage at address ");
2500 deprecated_print_address_numeric (SYMBOL_VALUE_ADDRESS (msym
), 1,
2504 case LOC_OPTIMIZED_OUT
:
2505 printf_filtered ("optimized out.\n");
2507 case LOC_HP_THREAD_LOCAL_STATIC
:
2508 printf_filtered ("HP thread local static ");
2511 printf_filtered ("extern (local indirect) at address ");
2512 deprecated_print_address_numeric (SYMBOL_VALUE_ADDRESS (sym
),
2516 case LOC_COMPUTED_ARG
:
2517 SYMBOL_OPS (sym
)->describe_location (sym
, gdb_stdout
);
2520 if (SYMBOL_TYPE (sym
))
2521 printf_filtered (", length %d.\n",
2522 TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym
))));
2524 if (BLOCK_FUNCTION (block
))
2527 block
= BLOCK_SUPERBLOCK (block
);
2530 printf_filtered ("Scope for %s contains no locals or arguments.\n",
2534 /* worker function (cleanup) */
2536 replace_comma (void *data
)
2544 trace_dump_command (char *args
, int from_tty
)
2546 struct tracepoint
*t
;
2547 struct action_line
*action
;
2548 char *action_exp
, *next_comma
;
2549 struct cleanup
*old_cleanups
;
2550 int stepping_actions
= 0;
2551 int stepping_frame
= 0;
2553 if (!target_is_remote ())
2555 error (_("Trace can only be run on remote targets."));
2559 if (tracepoint_number
== -1)
2561 warning (_("No current trace frame."));
2566 if (t
->number
== tracepoint_number
)
2570 error (_("No known tracepoint matches 'current' tracepoint #%d."),
2573 old_cleanups
= make_cleanup (null_cleanup
, NULL
);
2575 printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n",
2576 tracepoint_number
, traceframe_number
);
2578 /* The current frame is a trap frame if the frame PC is equal
2579 to the tracepoint PC. If not, then the current frame was
2580 collected during single-stepping. */
2582 stepping_frame
= (t
->address
!= (read_pc () - DECR_PC_AFTER_BREAK
));
2584 for (action
= t
->actions
; action
; action
= action
->next
)
2586 struct cmd_list_element
*cmd
;
2588 QUIT
; /* allow user to bail out with ^C */
2589 action_exp
= action
->action
;
2590 while (isspace ((int) *action_exp
))
2593 /* The collection actions to be done while stepping are
2594 bracketed by the commands "while-stepping" and "end". */
2596 if (*action_exp
== '#') /* comment line */
2599 cmd
= lookup_cmd (&action_exp
, cmdlist
, "", -1, 1);
2601 error (_("Bad action list item: %s"), action_exp
);
2603 if (cmd_cfunc_eq (cmd
, while_stepping_pseudocommand
))
2604 stepping_actions
= 1;
2605 else if (cmd_cfunc_eq (cmd
, end_actions_pseudocommand
))
2606 stepping_actions
= 0;
2607 else if (cmd_cfunc_eq (cmd
, collect_pseudocommand
))
2609 /* Display the collected data.
2610 For the trap frame, display only what was collected at
2611 the trap. Likewise for stepping frames, display only
2612 what was collected while stepping. This means that the
2613 two boolean variables, STEPPING_FRAME and
2614 STEPPING_ACTIONS should be equal. */
2615 if (stepping_frame
== stepping_actions
)
2618 { /* repeat over a comma-separated list */
2619 QUIT
; /* allow user to bail out with ^C */
2620 if (*action_exp
== ',')
2622 while (isspace ((int) *action_exp
))
2625 next_comma
= strchr (action_exp
, ',');
2627 if (0 == strncasecmp (action_exp
, "$reg", 4))
2628 registers_info (NULL
, from_tty
);
2629 else if (0 == strncasecmp (action_exp
, "$loc", 4))
2630 locals_info (NULL
, from_tty
);
2631 else if (0 == strncasecmp (action_exp
, "$arg", 4))
2632 args_info (NULL
, from_tty
);
2637 make_cleanup (replace_comma
, next_comma
);
2640 printf_filtered ("%s = ", action_exp
);
2641 output_command (action_exp
, from_tty
);
2642 printf_filtered ("\n");
2646 action_exp
= next_comma
;
2648 while (action_exp
&& *action_exp
== ',');
2652 discard_cleanups (old_cleanups
);
2655 /* Convert the memory pointed to by mem into hex, placing result in buf.
2656 * Return a pointer to the last char put in buf (null)
2657 * "stolen" from sparc-stub.c
2660 static const char hexchars
[] = "0123456789abcdef";
2663 mem2hex (gdb_byte
*mem
, char *buf
, int count
)
2671 *buf
++ = hexchars
[ch
>> 4];
2672 *buf
++ = hexchars
[ch
& 0xf];
2681 get_traceframe_number (void)
2683 return traceframe_number
;
2687 /* module initialization */
2689 _initialize_tracepoint (void)
2691 struct cmd_list_element
*c
;
2693 tracepoint_chain
= 0;
2694 tracepoint_count
= 0;
2695 traceframe_number
= -1;
2696 tracepoint_number
= -1;
2698 if (tracepoint_list
.list
== NULL
)
2700 tracepoint_list
.listsize
= 128;
2701 tracepoint_list
.list
= xmalloc
2702 (tracepoint_list
.listsize
* sizeof (struct memrange
));
2704 if (tracepoint_list
.aexpr_list
== NULL
)
2706 tracepoint_list
.aexpr_listsize
= 128;
2707 tracepoint_list
.aexpr_list
= xmalloc
2708 (tracepoint_list
.aexpr_listsize
* sizeof (struct agent_expr
*));
2711 if (stepping_list
.list
== NULL
)
2713 stepping_list
.listsize
= 128;
2714 stepping_list
.list
= xmalloc
2715 (stepping_list
.listsize
* sizeof (struct memrange
));
2718 if (stepping_list
.aexpr_list
== NULL
)
2720 stepping_list
.aexpr_listsize
= 128;
2721 stepping_list
.aexpr_list
= xmalloc
2722 (stepping_list
.aexpr_listsize
* sizeof (struct agent_expr
*));
2725 add_info ("scope", scope_info
,
2726 _("List the variables local to a scope"));
2728 add_cmd ("tracepoints", class_trace
, NULL
,
2729 _("Tracing of program execution without stopping the program."),
2732 add_info ("tracepoints", tracepoints_info
, _("\
2733 Status of tracepoints, or tracepoint number NUMBER.\n\
2734 Convenience variable \"$tpnum\" contains the number of the\n\
2735 last tracepoint set."));
2737 add_info_alias ("tp", "tracepoints", 1);
2739 c
= add_com ("save-tracepoints", class_trace
, tracepoint_save_command
, _("\
2740 Save current tracepoint definitions as a script.\n\
2741 Use the 'source' command in another debug session to restore them."));
2742 set_cmd_completer (c
, filename_completer
);
2744 add_com ("tdump", class_trace
, trace_dump_command
,
2745 _("Print everything collected at the current tracepoint."));
2747 add_prefix_cmd ("tfind", class_trace
, trace_find_command
, _("\
2748 Select a trace frame;\n\
2749 No argument means forward by one frame; '-' means backward by one frame."),
2750 &tfindlist
, "tfind ", 1, &cmdlist
);
2752 add_cmd ("outside", class_trace
, trace_find_outside_command
, _("\
2753 Select a trace frame whose PC is outside the given range.\n\
2754 Usage: tfind outside addr1, addr2"),
2757 add_cmd ("range", class_trace
, trace_find_range_command
, _("\
2758 Select a trace frame whose PC is in the given range.\n\
2759 Usage: tfind range addr1,addr2"),
2762 add_cmd ("line", class_trace
, trace_find_line_command
, _("\
2763 Select a trace frame by source line.\n\
2764 Argument can be a line number (with optional source file), \n\
2765 a function name, or '*' followed by an address.\n\
2766 Default argument is 'the next source line that was traced'."),
2769 add_cmd ("tracepoint", class_trace
, trace_find_tracepoint_command
, _("\
2770 Select a trace frame by tracepoint number.\n\
2771 Default is the tracepoint for the current trace frame."),
2774 add_cmd ("pc", class_trace
, trace_find_pc_command
, _("\
2775 Select a trace frame by PC.\n\
2776 Default is the current PC, or the PC of the current trace frame."),
2779 add_cmd ("end", class_trace
, trace_find_end_command
, _("\
2780 Synonym for 'none'.\n\
2781 De-select any trace frame and resume 'live' debugging."),
2784 add_cmd ("none", class_trace
, trace_find_none_command
,
2785 _("De-select any trace frame and resume 'live' debugging."),
2788 add_cmd ("start", class_trace
, trace_find_start_command
,
2789 _("Select the first trace frame in the trace buffer."),
2792 add_com ("tstatus", class_trace
, trace_status_command
,
2793 _("Display the status of the current trace data collection."));
2795 add_com ("tstop", class_trace
, trace_stop_command
,
2796 _("Stop trace data collection."));
2798 add_com ("tstart", class_trace
, trace_start_command
,
2799 _("Start trace data collection."));
2801 add_com ("passcount", class_trace
, trace_pass_command
, _("\
2802 Set the passcount for a tracepoint.\n\
2803 The trace will end when the tracepoint has been passed 'count' times.\n\
2804 Usage: passcount COUNT TPNUM, where TPNUM may also be \"all\";\n\
2805 if TPNUM is omitted, passcount refers to the last tracepoint defined."));
2807 add_com ("end", class_trace
, end_actions_pseudocommand
, _("\
2808 Ends a list of commands or actions.\n\
2809 Several GDB commands allow you to enter a list of commands or actions.\n\
2810 Entering \"end\" on a line by itself is the normal way to terminate\n\
2812 Note: the \"end\" command cannot be used at the gdb prompt."));
2814 add_com ("while-stepping", class_trace
, while_stepping_pseudocommand
, _("\
2815 Specify single-stepping behavior at a tracepoint.\n\
2816 Argument is number of instructions to trace in single-step mode\n\
2817 following the tracepoint. This command is normally followed by\n\
2818 one or more \"collect\" commands, to specify what to collect\n\
2819 while single-stepping.\n\n\
2820 Note: this command can only be used in a tracepoint \"actions\" list."));
2822 add_com_alias ("ws", "while-stepping", class_alias
, 0);
2823 add_com_alias ("stepping", "while-stepping", class_alias
, 0);
2825 add_com ("collect", class_trace
, collect_pseudocommand
, _("\
2826 Specify one or more data items to be collected at a tracepoint.\n\
2827 Accepts a comma-separated list of (one or more) expressions. GDB will\n\
2828 collect all data (variables, registers) referenced by that expression.\n\
2829 Also accepts the following special arguments:\n\
2830 $regs -- all registers.\n\
2831 $args -- all function arguments.\n\
2832 $locals -- all variables local to the block/function scope.\n\
2833 Note: this command can only be used in a tracepoint \"actions\" list."));
2835 add_com ("actions", class_trace
, trace_actions_command
, _("\
2836 Specify the actions to be taken at a tracepoint.\n\
2837 Tracepoint actions may include collecting of specified data, \n\
2838 single-stepping, or enabling/disabling other tracepoints, \n\
2839 depending on target's capabilities."));
2841 add_cmd ("tracepoints", class_trace
, delete_trace_command
, _("\
2842 Delete specified tracepoints.\n\
2843 Arguments are tracepoint numbers, separated by spaces.\n\
2844 No argument means delete all tracepoints."),
2847 add_cmd ("tracepoints", class_trace
, disable_trace_command
, _("\
2848 Disable specified tracepoints.\n\
2849 Arguments are tracepoint numbers, separated by spaces.\n\
2850 No argument means disable all tracepoints."),
2853 add_cmd ("tracepoints", class_trace
, enable_trace_command
, _("\
2854 Enable specified tracepoints.\n\
2855 Arguments are tracepoint numbers, separated by spaces.\n\
2856 No argument means enable all tracepoints."),
2859 c
= add_com ("trace", class_trace
, trace_command
, _("\
2860 Set a tracepoint at a specified line or function or address.\n\
2861 Argument may be a line number, function name, or '*' plus an address.\n\
2862 For a line number or function, trace at the start of its code.\n\
2863 If an address is specified, trace at that exact address.\n\n\
2864 Do \"help tracepoints\" for info on other tracepoint commands."));
2865 set_cmd_completer (c
, location_completer
);
2867 add_com_alias ("tp", "trace", class_alias
, 0);
2868 add_com_alias ("tr", "trace", class_alias
, 1);
2869 add_com_alias ("tra", "trace", class_alias
, 1);
2870 add_com_alias ("trac", "trace", class_alias
, 1);
2872 target_buf_size
= 2048;
2873 target_buf
= xmalloc (target_buf_size
);