1 /* Tracing functionality for remote targets in custom GDB protocol
3 Copyright (C) 1997-2017 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 #include "arch-utils.h"
25 #include "expression.h"
29 #include "target-dcache.h"
32 #include "breakpoint.h"
33 #include "tracepoint.h"
36 #include "completer.h"
38 #include "dictionary.h"
40 #include "user-regs.h"
44 #include "filenames.h"
45 #include "gdbthread.h"
52 #include "cli/cli-utils.h"
55 #include "filestuff.h"
57 #include "tracefile.h"
61 /* readline include files */
62 #include "readline/readline.h"
63 #include "readline/history.h"
65 /* readline defines this. */
70 /* Maximum length of an agent aexpression.
71 This accounts for the fact that packets are limited to 400 bytes
72 (which includes everything -- including the checksum), and assumes
73 the worst case of maximum length for each of the pieces of a
76 NOTE: expressions get mem2hex'ed otherwise this would be twice as
77 large. (400 - 31)/2 == 184 */
78 #define MAX_AGENT_EXPR_LEN 184
80 /* A hook used to notify the UI of tracepoint operations. */
82 void (*deprecated_trace_find_hook
) (char *arg
, int from_tty
);
83 void (*deprecated_trace_start_stop_hook
) (int start
, int from_tty
);
88 This module defines the following debugger commands:
89 trace : set a tracepoint on a function, line, or address.
90 info trace : list all debugger-defined tracepoints.
91 delete trace : delete one or more tracepoints.
92 enable trace : enable one or more tracepoints.
93 disable trace : disable one or more tracepoints.
94 actions : specify actions to be taken at a tracepoint.
95 passcount : specify a pass count for a tracepoint.
96 tstart : start a trace experiment.
97 tstop : stop a trace experiment.
98 tstatus : query the status of a trace experiment.
99 tfind : find a trace frame in the trace buffer.
100 tdump : print everything collected at the current tracepoint.
101 save-tracepoints : write tracepoint setup into a file.
103 This module defines the following user-visible debugger variables:
104 $trace_frame : sequence number of trace frame currently being debugged.
105 $trace_line : source line of trace frame currently being debugged.
106 $trace_file : source file of trace frame currently being debugged.
107 $tracepoint : tracepoint number of trace frame currently being debugged.
111 /* ======= Important global variables: ======= */
113 /* The list of all trace state variables. We don't retain pointers to
114 any of these for any reason - API is by name or number only - so it
115 works to have a vector of objects. */
117 typedef struct trace_state_variable tsv_s
;
120 static VEC(tsv_s
) *tvariables
;
122 /* The next integer to assign to a variable. */
124 static int next_tsv_number
= 1;
126 /* Number of last traceframe collected. */
127 static int traceframe_number
;
129 /* Tracepoint for last traceframe collected. */
130 static int tracepoint_number
;
132 /* The traceframe info of the current traceframe. NULL if we haven't
133 yet attempted to fetch it, or if the target does not support
134 fetching this object, or if we're not inspecting a traceframe
136 static struct traceframe_info
*traceframe_info
;
138 /* Tracing command lists. */
139 static struct cmd_list_element
*tfindlist
;
141 /* List of expressions to collect by default at each tracepoint hit. */
142 char *default_collect
;
144 static int disconnected_tracing
;
146 /* This variable controls whether we ask the target for a linear or
147 circular trace buffer. */
149 static int circular_trace_buffer
;
151 /* This variable is the requested trace buffer size, or -1 to indicate
152 that we don't care and leave it up to the target to set a size. */
154 static int trace_buffer_size
= -1;
156 /* Textual notes applying to the current and/or future trace runs. */
158 char *trace_user
= NULL
;
160 /* Textual notes applying to the current and/or future trace runs. */
162 char *trace_notes
= NULL
;
164 /* Textual notes applying to the stopping of a trace. */
166 char *trace_stop_notes
= NULL
;
168 /* ======= Important command functions: ======= */
169 static void actions_command (char *, int);
170 static void tstart_command (char *, int);
171 static void tstop_command (char *, int);
172 static void tstatus_command (char *, int);
173 static void tfind_pc_command (char *, int);
174 static void tfind_tracepoint_command (char *, int);
175 static void tfind_line_command (char *, int);
176 static void tfind_range_command (char *, int);
177 static void tfind_outside_command (char *, int);
178 static void tdump_command (char *, int);
180 /* support routines */
182 struct collection_list
;
183 static char *mem2hex (gdb_byte
*, char *, int);
185 static struct command_line
*
186 all_tracepoint_actions_and_cleanup (struct breakpoint
*t
);
188 extern void _initialize_tracepoint (void);
190 static struct trace_status trace_status
;
192 const char *stop_reason_names
[] = {
202 struct trace_status
*
203 current_trace_status (void)
205 return &trace_status
;
211 free_traceframe_info (struct traceframe_info
*info
)
215 VEC_free (mem_range_s
, info
->memory
);
216 VEC_free (int, info
->tvars
);
222 /* Free and clear the traceframe info cache of the current
226 clear_traceframe_info (void)
228 free_traceframe_info (traceframe_info
);
229 traceframe_info
= NULL
;
232 /* Set traceframe number to NUM. */
234 set_traceframe_num (int num
)
236 traceframe_number
= num
;
237 set_internalvar_integer (lookup_internalvar ("trace_frame"), num
);
240 /* Set tracepoint number to NUM. */
242 set_tracepoint_num (int num
)
244 tracepoint_number
= num
;
245 set_internalvar_integer (lookup_internalvar ("tracepoint"), num
);
248 /* Set externally visible debug variables for querying/printing
249 the traceframe context (line, function, file). */
252 set_traceframe_context (struct frame_info
*trace_frame
)
255 struct symbol
*traceframe_fun
;
256 struct symtab_and_line traceframe_sal
;
258 /* Save as globals for internal use. */
259 if (trace_frame
!= NULL
260 && get_frame_pc_if_available (trace_frame
, &trace_pc
))
262 traceframe_sal
= find_pc_line (trace_pc
, 0);
263 traceframe_fun
= find_pc_function (trace_pc
);
265 /* Save linenumber as "$trace_line", a debugger variable visible to
267 set_internalvar_integer (lookup_internalvar ("trace_line"),
268 traceframe_sal
.line
);
272 init_sal (&traceframe_sal
);
273 traceframe_fun
= NULL
;
274 set_internalvar_integer (lookup_internalvar ("trace_line"), -1);
277 /* Save func name as "$trace_func", a debugger variable visible to
279 if (traceframe_fun
== NULL
280 || SYMBOL_LINKAGE_NAME (traceframe_fun
) == NULL
)
281 clear_internalvar (lookup_internalvar ("trace_func"));
283 set_internalvar_string (lookup_internalvar ("trace_func"),
284 SYMBOL_LINKAGE_NAME (traceframe_fun
));
286 /* Save file name as "$trace_file", a debugger variable visible to
288 if (traceframe_sal
.symtab
== NULL
)
289 clear_internalvar (lookup_internalvar ("trace_file"));
291 set_internalvar_string (lookup_internalvar ("trace_file"),
292 symtab_to_filename_for_display (traceframe_sal
.symtab
));
295 /* Create a new trace state variable with the given name. */
297 struct trace_state_variable
*
298 create_trace_state_variable (const char *name
)
300 struct trace_state_variable tsv
;
302 memset (&tsv
, 0, sizeof (tsv
));
303 tsv
.name
= xstrdup (name
);
304 tsv
.number
= next_tsv_number
++;
305 return VEC_safe_push (tsv_s
, tvariables
, &tsv
);
308 /* Look for a trace state variable of the given name. */
310 struct trace_state_variable
*
311 find_trace_state_variable (const char *name
)
313 struct trace_state_variable
*tsv
;
316 for (ix
= 0; VEC_iterate (tsv_s
, tvariables
, ix
, tsv
); ++ix
)
317 if (strcmp (name
, tsv
->name
) == 0)
323 /* Look for a trace state variable of the given number. Return NULL if
326 struct trace_state_variable
*
327 find_trace_state_variable_by_number (int number
)
329 struct trace_state_variable
*tsv
;
332 for (ix
= 0; VEC_iterate (tsv_s
, tvariables
, ix
, tsv
); ++ix
)
333 if (tsv
->number
== number
)
340 delete_trace_state_variable (const char *name
)
342 struct trace_state_variable
*tsv
;
345 for (ix
= 0; VEC_iterate (tsv_s
, tvariables
, ix
, tsv
); ++ix
)
346 if (strcmp (name
, tsv
->name
) == 0)
348 observer_notify_tsv_deleted (tsv
);
350 xfree ((void *)tsv
->name
);
351 VEC_unordered_remove (tsv_s
, tvariables
, ix
);
356 warning (_("No trace variable named \"$%s\", not deleting"), name
);
359 /* Throws an error if NAME is not valid syntax for a trace state
363 validate_trace_state_variable_name (const char *name
)
368 error (_("Must supply a non-empty variable name"));
370 /* All digits in the name is reserved for value history
372 for (p
= name
; isdigit (*p
); p
++)
375 error (_("$%s is not a valid trace state variable name"), name
);
377 for (p
= name
; isalnum (*p
) || *p
== '_'; p
++)
380 error (_("$%s is not a valid trace state variable name"), name
);
383 /* The 'tvariable' command collects a name and optional expression to
384 evaluate into an initial value. */
387 trace_variable_command (char *args
, int from_tty
)
389 struct cleanup
*old_chain
;
391 struct trace_state_variable
*tsv
;
395 error_no_arg (_("Syntax is $NAME [ = EXPR ]"));
397 /* Only allow two syntaxes; "$name" and "$name=value". */
398 p
= skip_spaces (args
);
401 error (_("Name of trace variable should start with '$'"));
404 while (isalnum (*p
) || *p
== '_')
406 name
= savestring (name
, p
- name
);
407 old_chain
= make_cleanup (xfree
, name
);
410 if (*p
!= '=' && *p
!= '\0')
411 error (_("Syntax must be $NAME [ = EXPR ]"));
413 validate_trace_state_variable_name (name
);
416 initval
= value_as_long (parse_and_eval (++p
));
418 /* If the variable already exists, just change its initial value. */
419 tsv
= find_trace_state_variable (name
);
422 if (tsv
->initial_value
!= initval
)
424 tsv
->initial_value
= initval
;
425 observer_notify_tsv_modified (tsv
);
427 printf_filtered (_("Trace state variable $%s "
428 "now has initial value %s.\n"),
429 tsv
->name
, plongest (tsv
->initial_value
));
430 do_cleanups (old_chain
);
434 /* Create a new variable. */
435 tsv
= create_trace_state_variable (name
);
436 tsv
->initial_value
= initval
;
438 observer_notify_tsv_created (tsv
);
440 printf_filtered (_("Trace state variable $%s "
441 "created, with initial value %s.\n"),
442 tsv
->name
, plongest (tsv
->initial_value
));
444 do_cleanups (old_chain
);
448 delete_trace_variable_command (char *args
, int from_tty
)
452 struct cleanup
*back_to
;
456 if (query (_("Delete all trace state variables? ")))
457 VEC_free (tsv_s
, tvariables
);
459 observer_notify_tsv_deleted (NULL
);
463 argv
= gdb_buildargv (args
);
464 back_to
= make_cleanup_freeargv (argv
);
466 for (ix
= 0; argv
[ix
] != NULL
; ix
++)
468 if (*argv
[ix
] == '$')
469 delete_trace_state_variable (argv
[ix
] + 1);
471 warning (_("Name \"%s\" not prefixed with '$', ignoring"), argv
[ix
]);
474 do_cleanups (back_to
);
480 tvariables_info_1 (void)
482 struct trace_state_variable
*tsv
;
485 struct cleanup
*back_to
;
486 struct ui_out
*uiout
= current_uiout
;
488 if (VEC_length (tsv_s
, tvariables
) == 0 && !uiout
->is_mi_like_p ())
490 printf_filtered (_("No trace state variables.\n"));
494 /* Try to acquire values from the target. */
495 for (ix
= 0; VEC_iterate (tsv_s
, tvariables
, ix
, tsv
); ++ix
, ++count
)
496 tsv
->value_known
= target_get_trace_state_variable_value (tsv
->number
,
499 back_to
= make_cleanup_ui_out_table_begin_end (uiout
, 3,
500 count
, "trace-variables");
501 uiout
->table_header (15, ui_left
, "name", "Name");
502 uiout
->table_header (11, ui_left
, "initial", "Initial");
503 uiout
->table_header (11, ui_left
, "current", "Current");
505 uiout
->table_body ();
507 for (ix
= 0; VEC_iterate (tsv_s
, tvariables
, ix
, tsv
); ++ix
)
509 struct cleanup
*back_to2
;
513 back_to2
= make_cleanup_ui_out_tuple_begin_end (uiout
, "variable");
515 name
= concat ("$", tsv
->name
, (char *) NULL
);
516 make_cleanup (xfree
, name
);
517 uiout
->field_string ("name", name
);
518 uiout
->field_string ("initial", plongest (tsv
->initial_value
));
520 if (tsv
->value_known
)
521 c
= plongest (tsv
->value
);
522 else if (uiout
->is_mi_like_p ())
523 /* For MI, we prefer not to use magic string constants, but rather
524 omit the field completely. The difference between unknown and
525 undefined does not seem important enough to represent. */
527 else if (current_trace_status ()->running
|| traceframe_number
>= 0)
528 /* The value is/was defined, but we don't have it. */
531 /* It is not meaningful to ask about the value. */
534 uiout
->field_string ("current", c
);
537 do_cleanups (back_to2
);
540 do_cleanups (back_to
);
543 /* List all the trace state variables. */
546 tvariables_info (char *args
, int from_tty
)
548 tvariables_info_1 ();
551 /* Stash definitions of tsvs into the given file. */
554 save_trace_state_variables (struct ui_file
*fp
)
556 struct trace_state_variable
*tsv
;
559 for (ix
= 0; VEC_iterate (tsv_s
, tvariables
, ix
, tsv
); ++ix
)
561 fprintf_unfiltered (fp
, "tvariable $%s", tsv
->name
);
562 if (tsv
->initial_value
)
563 fprintf_unfiltered (fp
, " = %s", plongest (tsv
->initial_value
));
564 fprintf_unfiltered (fp
, "\n");
568 /* ACTIONS functions: */
570 /* The three functions:
571 collect_pseudocommand,
572 while_stepping_pseudocommand, and
573 end_actions_pseudocommand
574 are placeholders for "commands" that are actually ONLY to be used
575 within a tracepoint action list. If the actual function is ever called,
576 it means that somebody issued the "command" at the top level,
577 which is always an error. */
580 end_actions_pseudocommand (char *args
, int from_tty
)
582 error (_("This command cannot be used at the top level."));
586 while_stepping_pseudocommand (char *args
, int from_tty
)
588 error (_("This command can only be used in a tracepoint actions list."));
592 collect_pseudocommand (char *args
, int from_tty
)
594 error (_("This command can only be used in a tracepoint actions list."));
598 teval_pseudocommand (char *args
, int from_tty
)
600 error (_("This command can only be used in a tracepoint actions list."));
603 /* Parse any collection options, such as /s for strings. */
606 decode_agent_options (const char *exp
, int *trace_string
)
608 struct value_print_options opts
;
615 /* Call this to borrow the print elements default for collection
617 get_user_print_options (&opts
);
622 if (target_supports_string_tracing ())
624 /* Allow an optional decimal number giving an explicit maximum
625 string length, defaulting it to the "print elements" value;
626 so "collect/s80 mystr" gets at most 80 bytes of string. */
627 *trace_string
= opts
.print_max
;
629 if (*exp
>= '0' && *exp
<= '9')
630 *trace_string
= atoi (exp
);
631 while (*exp
>= '0' && *exp
<= '9')
635 error (_("Target does not support \"/s\" option for string tracing."));
638 error (_("Undefined collection format \"%c\"."), *exp
);
640 exp
= skip_spaces_const (exp
);
645 /* Enter a list of actions for a tracepoint. */
647 actions_command (char *args
, int from_tty
)
649 struct tracepoint
*t
;
651 t
= get_tracepoint_by_number (&args
, NULL
);
655 string_printf ("Enter actions for tracepoint %d, one per line.",
658 command_line_up l
= read_command_lines (&tmpbuf
[0], from_tty
, 1,
659 check_tracepoint_command
, t
);
660 breakpoint_set_commands (&t
->base
, std::move (l
));
662 /* else just return */
665 /* Report the results of checking the agent expression, as errors or
669 report_agent_reqs_errors (struct agent_expr
*aexpr
)
671 /* All of the "flaws" are serious bytecode generation issues that
672 should never occur. */
673 if (aexpr
->flaw
!= agent_flaw_none
)
674 internal_error (__FILE__
, __LINE__
, _("expression is malformed"));
676 /* If analysis shows a stack underflow, GDB must have done something
677 badly wrong in its bytecode generation. */
678 if (aexpr
->min_height
< 0)
679 internal_error (__FILE__
, __LINE__
,
680 _("expression has min height < 0"));
682 /* Issue this error if the stack is predicted to get too deep. The
683 limit is rather arbitrary; a better scheme might be for the
684 target to report how much stack it will have available. The
685 depth roughly corresponds to parenthesization, so a limit of 20
686 amounts to 20 levels of expression nesting, which is actually
687 a pretty big hairy expression. */
688 if (aexpr
->max_height
> 20)
689 error (_("Expression is too complicated."));
692 /* worker function */
694 validate_actionline (const char *line
, struct breakpoint
*b
)
696 struct cmd_list_element
*c
;
697 struct cleanup
*old_chain
= NULL
;
700 struct bp_location
*loc
;
701 struct tracepoint
*t
= (struct tracepoint
*) b
;
703 /* If EOF is typed, *line is NULL. */
707 p
= skip_spaces_const (line
);
709 /* Symbol lookup etc. */
710 if (*p
== '\0') /* empty line: just prompt for another line. */
713 if (*p
== '#') /* comment line */
716 c
= lookup_cmd (&p
, cmdlist
, "", -1, 1);
718 error (_("`%s' is not a tracepoint action, or is ambiguous."), p
);
720 if (cmd_cfunc_eq (c
, collect_pseudocommand
))
722 int trace_string
= 0;
725 p
= decode_agent_options (p
, &trace_string
);
728 { /* Repeat over a comma-separated list. */
729 QUIT
; /* Allow user to bail out with ^C. */
730 p
= skip_spaces_const (p
);
732 if (*p
== '$') /* Look for special pseudo-symbols. */
734 if (0 == strncasecmp ("reg", p
+ 1, 3)
735 || 0 == strncasecmp ("arg", p
+ 1, 3)
736 || 0 == strncasecmp ("loc", p
+ 1, 3)
737 || 0 == strncasecmp ("_ret", p
+ 1, 4)
738 || 0 == strncasecmp ("_sdata", p
+ 1, 6))
743 /* else fall thru, treat p as an expression and parse it! */
746 for (loc
= t
->base
.loc
; loc
; loc
= loc
->next
)
749 expression_up exp
= parse_exp_1 (&p
, loc
->address
,
750 block_for_pc (loc
->address
), 1);
752 if (exp
->elts
[0].opcode
== OP_VAR_VALUE
)
754 if (SYMBOL_CLASS (exp
->elts
[2].symbol
) == LOC_CONST
)
756 error (_("constant `%s' (value %s) "
757 "will not be collected."),
758 SYMBOL_PRINT_NAME (exp
->elts
[2].symbol
),
759 plongest (SYMBOL_VALUE (exp
->elts
[2].symbol
)));
761 else if (SYMBOL_CLASS (exp
->elts
[2].symbol
)
762 == LOC_OPTIMIZED_OUT
)
764 error (_("`%s' is optimized away "
765 "and cannot be collected."),
766 SYMBOL_PRINT_NAME (exp
->elts
[2].symbol
));
770 /* We have something to collect, make sure that the expr to
771 bytecode translator can handle it and that it's not too
773 agent_expr_up aexpr
= gen_trace_for_expr (loc
->address
,
777 if (aexpr
->len
> MAX_AGENT_EXPR_LEN
)
778 error (_("Expression is too complicated."));
780 ax_reqs (aexpr
.get ());
782 report_agent_reqs_errors (aexpr
.get ());
785 while (p
&& *p
++ == ',');
788 else if (cmd_cfunc_eq (c
, teval_pseudocommand
))
791 { /* Repeat over a comma-separated list. */
792 QUIT
; /* Allow user to bail out with ^C. */
793 p
= skip_spaces_const (p
);
796 for (loc
= t
->base
.loc
; loc
; loc
= loc
->next
)
800 /* Only expressions are allowed for this action. */
801 expression_up exp
= parse_exp_1 (&p
, loc
->address
,
802 block_for_pc (loc
->address
), 1);
804 /* We have something to evaluate, make sure that the expr to
805 bytecode translator can handle it and that it's not too
807 agent_expr_up aexpr
= gen_eval_for_expr (loc
->address
, exp
.get ());
809 if (aexpr
->len
> MAX_AGENT_EXPR_LEN
)
810 error (_("Expression is too complicated."));
812 ax_reqs (aexpr
.get ());
813 report_agent_reqs_errors (aexpr
.get ());
816 while (p
&& *p
++ == ',');
819 else if (cmd_cfunc_eq (c
, while_stepping_pseudocommand
))
823 p
= skip_spaces_const (p
);
824 t
->step_count
= strtol (p
, &endp
, 0);
825 if (endp
== p
|| t
->step_count
== 0)
826 error (_("while-stepping step count `%s' is malformed."), line
);
830 else if (cmd_cfunc_eq (c
, end_actions_pseudocommand
))
834 error (_("`%s' is not a supported tracepoint action."), line
);
838 memrange_absolute
= -1
841 /* MEMRANGE functions: */
843 /* Compare memranges for std::sort. */
846 memrange_comp (const memrange
&a
, const memrange
&b
)
848 if (a
.type
== b
.type
)
850 if (a
.type
== memrange_absolute
)
851 return (bfd_vma
) a
.start
< (bfd_vma
) b
.start
;
853 return a
.start
< b
.start
;
856 return a
.type
< b
.type
;
859 /* Sort the memrange list using std::sort, and merge adjacent memranges. */
862 memrange_sortmerge (std::vector
<memrange
> &memranges
)
864 if (!memranges
.empty ())
868 std::sort (memranges
.begin (), memranges
.end (), memrange_comp
);
870 for (a
= 0, b
= 1; b
< memranges
.size (); b
++)
872 /* If memrange b overlaps or is adjacent to memrange a,
874 if (memranges
[a
].type
== memranges
[b
].type
875 && memranges
[b
].start
<= memranges
[a
].end
)
877 if (memranges
[b
].end
> memranges
[a
].end
)
878 memranges
[a
].end
= memranges
[b
].end
;
879 continue; /* next b, same a */
883 memranges
[a
] = memranges
[b
];
885 memranges
.resize (a
+ 1);
889 /* Add a register to a collection list. */
892 collection_list::add_register (unsigned int regno
)
895 printf_filtered ("collect register %d\n", regno
);
896 if (regno
>= (8 * sizeof (m_regs_mask
)))
897 error (_("Internal: register number %d too large for tracepoint"),
899 m_regs_mask
[regno
/ 8] |= 1 << (regno
% 8);
902 /* Add a memrange to a collection list. */
905 collection_list::add_memrange (struct gdbarch
*gdbarch
,
906 int type
, bfd_signed_vma base
,
910 printf_filtered ("(%d,%s,%ld)\n", type
, paddress (gdbarch
, base
), len
);
912 /* type: memrange_absolute == memory, other n == basereg */
913 /* base: addr if memory, offset if reg relative. */
914 /* len: we actually save end (base + len) for convenience */
915 m_memranges
.emplace_back (type
, base
, base
+ len
);
917 if (type
!= memrange_absolute
) /* Better collect the base register! */
921 /* Add a symbol to a collection list. */
924 collection_list::collect_symbol (struct symbol
*sym
,
925 struct gdbarch
*gdbarch
,
926 long frame_regno
, long frame_offset
,
932 bfd_signed_vma offset
;
933 int treat_as_expr
= 0;
935 len
= TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym
)));
936 switch (SYMBOL_CLASS (sym
))
939 printf_filtered ("%s: don't know symbol class %d\n",
940 SYMBOL_PRINT_NAME (sym
),
944 printf_filtered ("constant %s (value %s) will not be collected.\n",
945 SYMBOL_PRINT_NAME (sym
), plongest (SYMBOL_VALUE (sym
)));
948 offset
= SYMBOL_VALUE_ADDRESS (sym
);
951 printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n",
952 SYMBOL_PRINT_NAME (sym
), len
,
953 paddress (gdbarch
, offset
));
955 /* A struct may be a C++ class with static fields, go to general
956 expression handling. */
957 if (TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_STRUCT
)
960 add_memrange (gdbarch
, memrange_absolute
, offset
, len
);
963 reg
= SYMBOL_REGISTER_OPS (sym
)->register_number (sym
, gdbarch
);
965 printf_filtered ("LOC_REG[parm] %s: ",
966 SYMBOL_PRINT_NAME (sym
));
968 /* Check for doubles stored in two registers. */
969 /* FIXME: how about larger types stored in 3 or more regs? */
970 if (TYPE_CODE (SYMBOL_TYPE (sym
)) == TYPE_CODE_FLT
&&
971 len
> register_size (gdbarch
, reg
))
972 add_register (reg
+ 1);
975 printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n");
976 printf_filtered (" (will not collect %s)\n",
977 SYMBOL_PRINT_NAME (sym
));
981 offset
= frame_offset
+ SYMBOL_VALUE (sym
);
984 printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset %s"
985 " from frame ptr reg %d\n",
986 SYMBOL_PRINT_NAME (sym
), len
,
987 paddress (gdbarch
, offset
), reg
);
989 add_memrange (gdbarch
, reg
, offset
, len
);
991 case LOC_REGPARM_ADDR
:
992 reg
= SYMBOL_VALUE (sym
);
996 printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset %s"
998 SYMBOL_PRINT_NAME (sym
), len
,
999 paddress (gdbarch
, offset
), reg
);
1001 add_memrange (gdbarch
, reg
, offset
, len
);
1005 offset
= frame_offset
+ SYMBOL_VALUE (sym
);
1008 printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset %s"
1009 " from frame ptr reg %d\n",
1010 SYMBOL_PRINT_NAME (sym
), len
,
1011 paddress (gdbarch
, offset
), reg
);
1013 add_memrange (gdbarch
, reg
, offset
, len
);
1016 case LOC_UNRESOLVED
:
1020 case LOC_OPTIMIZED_OUT
:
1021 printf_filtered ("%s has been optimized out of existence.\n",
1022 SYMBOL_PRINT_NAME (sym
));
1030 /* Expressions are the most general case. */
1033 struct cleanup
*old_chain1
= NULL
;
1035 agent_expr_up aexpr
= gen_trace_for_var (scope
, gdbarch
,
1038 /* It can happen that the symbol is recorded as a computed
1039 location, but it's been optimized away and doesn't actually
1040 have a location expression. */
1043 printf_filtered ("%s has been optimized out of existence.\n",
1044 SYMBOL_PRINT_NAME (sym
));
1048 ax_reqs (aexpr
.get ());
1050 report_agent_reqs_errors (aexpr
.get ());
1052 /* Take care of the registers. */
1053 if (aexpr
->reg_mask_len
> 0)
1055 for (int ndx1
= 0; ndx1
< aexpr
->reg_mask_len
; ndx1
++)
1057 QUIT
; /* Allow user to bail out with ^C. */
1058 if (aexpr
->reg_mask
[ndx1
] != 0)
1060 /* Assume chars have 8 bits. */
1061 for (int ndx2
= 0; ndx2
< 8; ndx2
++)
1062 if (aexpr
->reg_mask
[ndx1
] & (1 << ndx2
))
1063 /* It's used -- record it. */
1064 add_register (ndx1
* 8 + ndx2
);
1069 add_aexpr (std::move (aexpr
));
1073 /* Data to be passed around in the calls to the locals and args
1076 struct add_local_symbols_data
1078 struct collection_list
*collect
;
1079 struct gdbarch
*gdbarch
;
1087 /* The callback for the locals and args iterators. */
1090 do_collect_symbol (const char *print_name
,
1094 struct add_local_symbols_data
*p
= (struct add_local_symbols_data
*) cb_data
;
1096 p
->collect
->collect_symbol (sym
, p
->gdbarch
, p
->frame_regno
,
1097 p
->frame_offset
, p
->pc
, p
->trace_string
);
1100 p
->collect
->add_wholly_collected (print_name
);
1104 collection_list::add_wholly_collected (const char *print_name
)
1106 m_wholly_collected
.push_back (print_name
);
1109 /* Add all locals (or args) symbols to collection list. */
1112 collection_list::add_local_symbols (struct gdbarch
*gdbarch
, CORE_ADDR pc
,
1113 long frame_regno
, long frame_offset
, int type
,
1116 const struct block
*block
;
1117 struct add_local_symbols_data cb_data
;
1119 cb_data
.collect
= this;
1120 cb_data
.gdbarch
= gdbarch
;
1122 cb_data
.frame_regno
= frame_regno
;
1123 cb_data
.frame_offset
= frame_offset
;
1125 cb_data
.trace_string
= trace_string
;
1129 block
= block_for_pc (pc
);
1132 warning (_("Can't collect locals; "
1133 "no symbol table info available.\n"));
1137 iterate_over_block_local_vars (block
, do_collect_symbol
, &cb_data
);
1138 if (cb_data
.count
== 0)
1139 warning (_("No locals found in scope."));
1143 pc
= get_pc_function_start (pc
);
1144 block
= block_for_pc (pc
);
1147 warning (_("Can't collect args; no symbol table info available."));
1151 iterate_over_block_arg_vars (block
, do_collect_symbol
, &cb_data
);
1152 if (cb_data
.count
== 0)
1153 warning (_("No args found in scope."));
1158 collection_list::add_static_trace_data ()
1161 printf_filtered ("collect static trace data\n");
1162 m_strace_data
= true;
1165 collection_list::collection_list ()
1167 m_strace_data (false)
1169 m_memranges
.reserve (128);
1170 m_aexprs
.reserve (128);
1173 /* Reduce a collection list to string form (for gdb protocol). */
1176 collection_list::stringify ()
1178 char temp_buf
[2048];
1181 char *(*str_list
)[];
1185 count
= 1 + 1 + m_memranges
.size () + m_aexprs
.size () + 1;
1186 str_list
= (char *(*)[]) xmalloc (count
* sizeof (char *));
1191 printf_filtered ("\nCollecting static trace data\n");
1194 (*str_list
)[ndx
] = savestring (temp_buf
, end
- temp_buf
);
1198 for (i
= sizeof (m_regs_mask
) - 1; i
> 0; i
--)
1199 if (m_regs_mask
[i
] != 0) /* Skip leading zeroes in regs_mask. */
1201 if (m_regs_mask
[i
] != 0) /* Prepare to send regs_mask to the stub. */
1204 printf_filtered ("\nCollecting registers (mask): 0x");
1209 QUIT
; /* Allow user to bail out with ^C. */
1211 printf_filtered ("%02X", m_regs_mask
[i
]);
1212 sprintf (end
, "%02X", m_regs_mask
[i
]);
1215 (*str_list
)[ndx
] = xstrdup (temp_buf
);
1219 printf_filtered ("\n");
1220 if (!m_memranges
.empty () && info_verbose
)
1221 printf_filtered ("Collecting memranges: \n");
1222 for (i
= 0, count
= 0, end
= temp_buf
; i
< m_memranges
.size (); i
++)
1224 QUIT
; /* Allow user to bail out with ^C. */
1227 printf_filtered ("(%d, %s, %ld)\n",
1228 m_memranges
[i
].type
,
1229 paddress (target_gdbarch (),
1230 m_memranges
[i
].start
),
1231 (long) (m_memranges
[i
].end
1232 - m_memranges
[i
].start
));
1234 if (count
+ 27 > MAX_AGENT_EXPR_LEN
)
1236 (*str_list
)[ndx
] = savestring (temp_buf
, count
);
1243 bfd_signed_vma length
1244 = m_memranges
[i
].end
- m_memranges
[i
].start
;
1246 /* The "%X" conversion specifier expects an unsigned argument,
1247 so passing -1 (memrange_absolute) to it directly gives you
1248 "FFFFFFFF" (or more, depending on sizeof (unsigned)).
1250 if (m_memranges
[i
].type
== memrange_absolute
)
1251 sprintf (end
, "M-1,%s,%lX", phex_nz (m_memranges
[i
].start
, 0),
1254 sprintf (end
, "M%X,%s,%lX", m_memranges
[i
].type
,
1255 phex_nz (m_memranges
[i
].start
, 0), (long) length
);
1258 count
+= strlen (end
);
1259 end
= temp_buf
+ count
;
1262 for (i
= 0; i
< m_aexprs
.size (); i
++)
1264 QUIT
; /* Allow user to bail out with ^C. */
1265 if ((count
+ 10 + 2 * m_aexprs
[i
]->len
) > MAX_AGENT_EXPR_LEN
)
1267 (*str_list
)[ndx
] = savestring (temp_buf
, count
);
1272 sprintf (end
, "X%08X,", m_aexprs
[i
]->len
);
1273 end
+= 10; /* 'X' + 8 hex digits + ',' */
1276 end
= mem2hex (m_aexprs
[i
]->buf
, end
, m_aexprs
[i
]->len
);
1277 count
+= 2 * m_aexprs
[i
]->len
;
1282 (*str_list
)[ndx
] = savestring (temp_buf
, count
);
1287 (*str_list
)[ndx
] = NULL
;
1298 /* Add the printed expression EXP to *LIST. */
1301 collection_list::append_exp (struct expression
*exp
)
1303 string_file tmp_stream
;
1305 print_expression (exp
, &tmp_stream
);
1307 m_computed
.push_back (std::move (tmp_stream
.string ()));
1311 collection_list::finish ()
1313 memrange_sortmerge (m_memranges
);
1317 encode_actions_1 (struct command_line
*action
,
1318 struct bp_location
*tloc
,
1320 LONGEST frame_offset
,
1321 struct collection_list
*collect
,
1322 struct collection_list
*stepping_list
)
1324 const char *action_exp
;
1326 struct value
*tempval
;
1327 struct cmd_list_element
*cmd
;
1329 for (; action
; action
= action
->next
)
1331 QUIT
; /* Allow user to bail out with ^C. */
1332 action_exp
= action
->line
;
1333 action_exp
= skip_spaces_const (action_exp
);
1335 cmd
= lookup_cmd (&action_exp
, cmdlist
, "", -1, 1);
1337 error (_("Bad action list item: %s"), action_exp
);
1339 if (cmd_cfunc_eq (cmd
, collect_pseudocommand
))
1341 int trace_string
= 0;
1343 if (*action_exp
== '/')
1344 action_exp
= decode_agent_options (action_exp
, &trace_string
);
1347 { /* Repeat over a comma-separated list. */
1348 QUIT
; /* Allow user to bail out with ^C. */
1349 action_exp
= skip_spaces_const (action_exp
);
1351 if (0 == strncasecmp ("$reg", action_exp
, 4))
1353 for (i
= 0; i
< gdbarch_num_regs (target_gdbarch ()); i
++)
1354 collect
->add_register (i
);
1355 action_exp
= strchr (action_exp
, ','); /* more? */
1357 else if (0 == strncasecmp ("$arg", action_exp
, 4))
1359 collect
->add_local_symbols (target_gdbarch (),
1365 action_exp
= strchr (action_exp
, ','); /* more? */
1367 else if (0 == strncasecmp ("$loc", action_exp
, 4))
1369 collect
->add_local_symbols (target_gdbarch (),
1375 action_exp
= strchr (action_exp
, ','); /* more? */
1377 else if (0 == strncasecmp ("$_ret", action_exp
, 5))
1380 = gen_trace_for_return_address (tloc
->address
,
1384 ax_reqs (aexpr
.get ());
1385 report_agent_reqs_errors (aexpr
.get ());
1387 /* take care of the registers */
1388 if (aexpr
->reg_mask_len
> 0)
1390 for (int ndx1
= 0; ndx1
< aexpr
->reg_mask_len
; ndx1
++)
1392 QUIT
; /* allow user to bail out with ^C */
1393 if (aexpr
->reg_mask
[ndx1
] != 0)
1395 /* assume chars have 8 bits */
1396 for (int ndx2
= 0; ndx2
< 8; ndx2
++)
1397 if (aexpr
->reg_mask
[ndx1
] & (1 << ndx2
))
1399 /* It's used -- record it. */
1400 collect
->add_register (ndx1
* 8 + ndx2
);
1406 collect
->add_aexpr (std::move (aexpr
));
1407 action_exp
= strchr (action_exp
, ','); /* more? */
1409 else if (0 == strncasecmp ("$_sdata", action_exp
, 7))
1411 collect
->add_static_trace_data ();
1412 action_exp
= strchr (action_exp
, ','); /* more? */
1417 struct cleanup
*old_chain1
= NULL
;
1419 expression_up exp
= parse_exp_1 (&action_exp
, tloc
->address
,
1420 block_for_pc (tloc
->address
),
1423 switch (exp
->elts
[0].opcode
)
1427 const char *name
= &exp
->elts
[2].string
;
1429 i
= user_reg_map_name_to_regnum (target_gdbarch (),
1430 name
, strlen (name
));
1432 internal_error (__FILE__
, __LINE__
,
1433 _("Register $%s not available"),
1436 printf_filtered ("OP_REGISTER: ");
1437 collect
->add_register (i
);
1442 /* Safe because we know it's a simple expression. */
1443 tempval
= evaluate_expression (exp
.get ());
1444 addr
= value_address (tempval
);
1445 /* Initialize the TYPE_LENGTH if it is a typedef. */
1446 check_typedef (exp
->elts
[1].type
);
1447 collect
->add_memrange (target_gdbarch (),
1448 memrange_absolute
, addr
,
1449 TYPE_LENGTH (exp
->elts
[1].type
));
1450 collect
->append_exp (exp
.get ());
1455 struct symbol
*sym
= exp
->elts
[2].symbol
;
1456 char_ptr name
= (char_ptr
) SYMBOL_NATURAL_NAME (sym
);
1458 collect
->collect_symbol (exp
->elts
[2].symbol
,
1464 collect
->add_wholly_collected (name
);
1468 default: /* Full-fledged expression. */
1469 agent_expr_up aexpr
= gen_trace_for_expr (tloc
->address
,
1473 ax_reqs (aexpr
.get ());
1475 report_agent_reqs_errors (aexpr
.get ());
1477 /* Take care of the registers. */
1478 if (aexpr
->reg_mask_len
> 0)
1480 for (int ndx1
= 0; ndx1
< aexpr
->reg_mask_len
; ndx1
++)
1482 QUIT
; /* Allow user to bail out with ^C. */
1483 if (aexpr
->reg_mask
[ndx1
] != 0)
1485 /* Assume chars have 8 bits. */
1486 for (int ndx2
= 0; ndx2
< 8; ndx2
++)
1487 if (aexpr
->reg_mask
[ndx1
] & (1 << ndx2
))
1489 /* It's used -- record it. */
1490 collect
->add_register (ndx1
* 8 + ndx2
);
1496 collect
->add_aexpr (std::move (aexpr
));
1497 collect
->append_exp (exp
.get ());
1502 while (action_exp
&& *action_exp
++ == ',');
1504 else if (cmd_cfunc_eq (cmd
, teval_pseudocommand
))
1507 { /* Repeat over a comma-separated list. */
1508 QUIT
; /* Allow user to bail out with ^C. */
1509 action_exp
= skip_spaces_const (action_exp
);
1512 struct cleanup
*old_chain1
= NULL
;
1514 expression_up exp
= parse_exp_1 (&action_exp
, tloc
->address
,
1515 block_for_pc (tloc
->address
),
1518 agent_expr_up aexpr
= gen_eval_for_expr (tloc
->address
,
1521 ax_reqs (aexpr
.get ());
1522 report_agent_reqs_errors (aexpr
.get ());
1524 /* Even though we're not officially collecting, add
1525 to the collect list anyway. */
1526 collect
->add_aexpr (std::move (aexpr
));
1529 while (action_exp
&& *action_exp
++ == ',');
1531 else if (cmd_cfunc_eq (cmd
, while_stepping_pseudocommand
))
1533 /* We check against nested while-stepping when setting
1534 breakpoint action, so no way to run into nested
1536 gdb_assert (stepping_list
);
1538 encode_actions_1 (action
->body_list
[0], tloc
, frame_reg
,
1539 frame_offset
, stepping_list
, NULL
);
1542 error (_("Invalid tracepoint command '%s'"), action
->line
);
1546 /* Encode actions of tracepoint TLOC->owner and fill TRACEPOINT_LIST
1547 and STEPPING_LIST. */
1550 encode_actions (struct bp_location
*tloc
,
1551 struct collection_list
*tracepoint_list
,
1552 struct collection_list
*stepping_list
)
1554 struct command_line
*actions
;
1556 LONGEST frame_offset
;
1558 gdbarch_virtual_frame_pointer (tloc
->gdbarch
,
1559 tloc
->address
, &frame_reg
, &frame_offset
);
1561 actions
= all_tracepoint_actions_and_cleanup (tloc
->owner
);
1563 encode_actions_1 (actions
, tloc
, frame_reg
, frame_offset
,
1564 tracepoint_list
, stepping_list
);
1566 tracepoint_list
->finish ();
1567 stepping_list
->finish ();
1570 /* Render all actions into gdb protocol. */
1573 encode_actions_rsp (struct bp_location
*tloc
, char ***tdp_actions
,
1574 char ***stepping_actions
)
1576 struct collection_list tracepoint_list
, stepping_list
;
1578 *tdp_actions
= NULL
;
1579 *stepping_actions
= NULL
;
1581 encode_actions (tloc
, &tracepoint_list
, &stepping_list
);
1583 *tdp_actions
= tracepoint_list
.stringify ();
1584 *stepping_actions
= stepping_list
.stringify ();
1588 collection_list::add_aexpr (agent_expr_up aexpr
)
1590 m_aexprs
.push_back (std::move (aexpr
));
1594 process_tracepoint_on_disconnect (void)
1596 VEC(breakpoint_p
) *tp_vec
= NULL
;
1598 struct breakpoint
*b
;
1599 int has_pending_p
= 0;
1601 /* Check whether we still have pending tracepoint. If we have, warn the
1602 user that pending tracepoint will no longer work. */
1603 tp_vec
= all_tracepoints ();
1604 for (ix
= 0; VEC_iterate (breakpoint_p
, tp_vec
, ix
, b
); ix
++)
1613 struct bp_location
*loc1
;
1615 for (loc1
= b
->loc
; loc1
; loc1
= loc1
->next
)
1617 if (loc1
->shlib_disabled
)
1628 VEC_free (breakpoint_p
, tp_vec
);
1631 warning (_("Pending tracepoints will not be resolved while"
1632 " GDB is disconnected\n"));
1635 /* Reset local state of tracing. */
1638 trace_reset_local_state (void)
1640 set_traceframe_num (-1);
1641 set_tracepoint_num (-1);
1642 set_traceframe_context (NULL
);
1643 clear_traceframe_info ();
1647 start_tracing (char *notes
)
1649 VEC(breakpoint_p
) *tp_vec
= NULL
;
1651 struct breakpoint
*b
;
1652 struct trace_state_variable
*tsv
;
1653 int any_enabled
= 0, num_to_download
= 0;
1656 tp_vec
= all_tracepoints ();
1658 /* No point in tracing without any tracepoints... */
1659 if (VEC_length (breakpoint_p
, tp_vec
) == 0)
1661 VEC_free (breakpoint_p
, tp_vec
);
1662 error (_("No tracepoints defined, not starting trace"));
1665 for (ix
= 0; VEC_iterate (breakpoint_p
, tp_vec
, ix
, b
); ix
++)
1667 if (b
->enable_state
== bp_enabled
)
1670 if ((b
->type
== bp_fast_tracepoint
1671 ? may_insert_fast_tracepoints
1672 : may_insert_tracepoints
))
1675 warning (_("May not insert %stracepoints, skipping tracepoint %d"),
1676 (b
->type
== bp_fast_tracepoint
? "fast " : ""), b
->number
);
1681 if (target_supports_enable_disable_tracepoint ())
1682 warning (_("No tracepoints enabled"));
1685 /* No point in tracing with only disabled tracepoints that
1686 cannot be re-enabled. */
1687 VEC_free (breakpoint_p
, tp_vec
);
1688 error (_("No tracepoints enabled, not starting trace"));
1692 if (num_to_download
<= 0)
1694 VEC_free (breakpoint_p
, tp_vec
);
1695 error (_("No tracepoints that may be downloaded, not starting trace"));
1698 target_trace_init ();
1700 for (ix
= 0; VEC_iterate (breakpoint_p
, tp_vec
, ix
, b
); ix
++)
1702 struct tracepoint
*t
= (struct tracepoint
*) b
;
1703 struct bp_location
*loc
;
1704 int bp_location_downloaded
= 0;
1706 /* Clear `inserted' flag. */
1707 for (loc
= b
->loc
; loc
; loc
= loc
->next
)
1710 if ((b
->type
== bp_fast_tracepoint
1711 ? !may_insert_fast_tracepoints
1712 : !may_insert_tracepoints
))
1715 t
->number_on_target
= 0;
1717 for (loc
= b
->loc
; loc
; loc
= loc
->next
)
1719 /* Since tracepoint locations are never duplicated, `inserted'
1720 flag should be zero. */
1721 gdb_assert (!loc
->inserted
);
1723 target_download_tracepoint (loc
);
1726 bp_location_downloaded
= 1;
1729 t
->number_on_target
= b
->number
;
1731 for (loc
= b
->loc
; loc
; loc
= loc
->next
)
1732 if (loc
->probe
.probe
!= NULL
1733 && loc
->probe
.probe
->pops
->set_semaphore
!= NULL
)
1734 loc
->probe
.probe
->pops
->set_semaphore (loc
->probe
.probe
,
1738 if (bp_location_downloaded
)
1739 observer_notify_breakpoint_modified (b
);
1741 VEC_free (breakpoint_p
, tp_vec
);
1743 /* Send down all the trace state variables too. */
1744 for (ix
= 0; VEC_iterate (tsv_s
, tvariables
, ix
, tsv
); ++ix
)
1746 target_download_trace_state_variable (tsv
);
1749 /* Tell target to treat text-like sections as transparent. */
1750 target_trace_set_readonly_regions ();
1751 /* Set some mode flags. */
1752 target_set_disconnected_tracing (disconnected_tracing
);
1753 target_set_circular_trace_buffer (circular_trace_buffer
);
1754 target_set_trace_buffer_size (trace_buffer_size
);
1757 notes
= trace_notes
;
1758 ret
= target_set_trace_notes (trace_user
, notes
, NULL
);
1760 if (!ret
&& (trace_user
|| notes
))
1761 warning (_("Target does not support trace user/notes, info ignored"));
1763 /* Now insert traps and begin collecting data. */
1764 target_trace_start ();
1766 /* Reset our local state. */
1767 trace_reset_local_state ();
1768 current_trace_status()->running
= 1;
1771 /* The tstart command requests the target to start a new trace run.
1772 The command passes any arguments it has to the target verbatim, as
1773 an optional "trace note". This is useful as for instance a warning
1774 to other users if the trace runs disconnected, and you don't want
1775 anybody else messing with the target. */
1778 tstart_command (char *args
, int from_tty
)
1780 dont_repeat (); /* Like "run", dangerous to repeat accidentally. */
1782 if (current_trace_status ()->running
)
1785 && !query (_("A trace is running already. Start a new run? ")))
1786 error (_("New trace run not started."));
1789 start_tracing (args
);
1792 /* The tstop command stops the tracing run. The command passes any
1793 supplied arguments to the target verbatim as a "stop note"; if the
1794 target supports trace notes, then it will be reported back as part
1795 of the trace run's status. */
1798 tstop_command (char *args
, int from_tty
)
1800 if (!current_trace_status ()->running
)
1801 error (_("Trace is not running."));
1803 stop_tracing (args
);
1807 stop_tracing (char *note
)
1810 VEC(breakpoint_p
) *tp_vec
= NULL
;
1812 struct breakpoint
*t
;
1814 target_trace_stop ();
1816 tp_vec
= all_tracepoints ();
1817 for (ix
= 0; VEC_iterate (breakpoint_p
, tp_vec
, ix
, t
); ix
++)
1819 struct bp_location
*loc
;
1821 if ((t
->type
== bp_fast_tracepoint
1822 ? !may_insert_fast_tracepoints
1823 : !may_insert_tracepoints
))
1826 for (loc
= t
->loc
; loc
; loc
= loc
->next
)
1828 /* GDB can be totally absent in some disconnected trace scenarios,
1829 but we don't really care if this semaphore goes out of sync.
1830 That's why we are decrementing it here, but not taking care
1832 if (loc
->probe
.probe
!= NULL
1833 && loc
->probe
.probe
->pops
->clear_semaphore
!= NULL
)
1834 loc
->probe
.probe
->pops
->clear_semaphore (loc
->probe
.probe
,
1840 VEC_free (breakpoint_p
, tp_vec
);
1843 note
= trace_stop_notes
;
1844 ret
= target_set_trace_notes (NULL
, NULL
, note
);
1847 warning (_("Target does not support trace notes, note ignored"));
1849 /* Should change in response to reply? */
1850 current_trace_status ()->running
= 0;
1853 /* tstatus command */
1855 tstatus_command (char *args
, int from_tty
)
1857 struct trace_status
*ts
= current_trace_status ();
1859 VEC(breakpoint_p
) *tp_vec
= NULL
;
1860 struct breakpoint
*t
;
1862 status
= target_get_trace_status (ts
);
1866 if (ts
->filename
!= NULL
)
1867 printf_filtered (_("Using a trace file.\n"));
1870 printf_filtered (_("Trace can not be run on this target.\n"));
1875 if (!ts
->running_known
)
1877 printf_filtered (_("Run/stop status is unknown.\n"));
1879 else if (ts
->running
)
1881 printf_filtered (_("Trace is running on the target.\n"));
1885 switch (ts
->stop_reason
)
1887 case trace_never_run
:
1888 printf_filtered (_("No trace has been run on the target.\n"));
1890 case trace_stop_command
:
1892 printf_filtered (_("Trace stopped by a tstop command (%s).\n"),
1895 printf_filtered (_("Trace stopped by a tstop command.\n"));
1897 case trace_buffer_full
:
1898 printf_filtered (_("Trace stopped because the buffer was full.\n"));
1900 case trace_disconnected
:
1901 printf_filtered (_("Trace stopped because of disconnection.\n"));
1903 case tracepoint_passcount
:
1904 printf_filtered (_("Trace stopped by tracepoint %d.\n"),
1905 ts
->stopping_tracepoint
);
1907 case tracepoint_error
:
1908 if (ts
->stopping_tracepoint
)
1909 printf_filtered (_("Trace stopped by an "
1910 "error (%s, tracepoint %d).\n"),
1911 ts
->stop_desc
, ts
->stopping_tracepoint
);
1913 printf_filtered (_("Trace stopped by an error (%s).\n"),
1916 case trace_stop_reason_unknown
:
1917 printf_filtered (_("Trace stopped for an unknown reason.\n"));
1920 printf_filtered (_("Trace stopped for some other reason (%d).\n"),
1926 if (ts
->traceframes_created
>= 0
1927 && ts
->traceframe_count
!= ts
->traceframes_created
)
1929 printf_filtered (_("Buffer contains %d trace "
1930 "frames (of %d created total).\n"),
1931 ts
->traceframe_count
, ts
->traceframes_created
);
1933 else if (ts
->traceframe_count
>= 0)
1935 printf_filtered (_("Collected %d trace frames.\n"),
1936 ts
->traceframe_count
);
1939 if (ts
->buffer_free
>= 0)
1941 if (ts
->buffer_size
>= 0)
1943 printf_filtered (_("Trace buffer has %d bytes of %d bytes free"),
1944 ts
->buffer_free
, ts
->buffer_size
);
1945 if (ts
->buffer_size
> 0)
1946 printf_filtered (_(" (%d%% full)"),
1947 ((int) ((((long long) (ts
->buffer_size
1948 - ts
->buffer_free
)) * 100)
1949 / ts
->buffer_size
)));
1950 printf_filtered (_(".\n"));
1953 printf_filtered (_("Trace buffer has %d bytes free.\n"),
1957 if (ts
->disconnected_tracing
)
1958 printf_filtered (_("Trace will continue if GDB disconnects.\n"));
1960 printf_filtered (_("Trace will stop if GDB disconnects.\n"));
1962 if (ts
->circular_buffer
)
1963 printf_filtered (_("Trace buffer is circular.\n"));
1965 if (ts
->user_name
&& strlen (ts
->user_name
) > 0)
1966 printf_filtered (_("Trace user is %s.\n"), ts
->user_name
);
1968 if (ts
->notes
&& strlen (ts
->notes
) > 0)
1969 printf_filtered (_("Trace notes: %s.\n"), ts
->notes
);
1971 /* Now report on what we're doing with tfind. */
1972 if (traceframe_number
>= 0)
1973 printf_filtered (_("Looking at trace frame %d, tracepoint %d.\n"),
1974 traceframe_number
, tracepoint_number
);
1976 printf_filtered (_("Not looking at any trace frame.\n"));
1978 /* Report start/stop times if supplied. */
1983 LONGEST run_time
= ts
->stop_time
- ts
->start_time
;
1985 /* Reporting a run time is more readable than two long numbers. */
1986 printf_filtered (_("Trace started at %ld.%06ld secs, stopped %ld.%06ld secs later.\n"),
1987 (long int) (ts
->start_time
/ 1000000),
1988 (long int) (ts
->start_time
% 1000000),
1989 (long int) (run_time
/ 1000000),
1990 (long int) (run_time
% 1000000));
1993 printf_filtered (_("Trace started at %ld.%06ld secs.\n"),
1994 (long int) (ts
->start_time
/ 1000000),
1995 (long int) (ts
->start_time
% 1000000));
1997 else if (ts
->stop_time
)
1998 printf_filtered (_("Trace stopped at %ld.%06ld secs.\n"),
1999 (long int) (ts
->stop_time
/ 1000000),
2000 (long int) (ts
->stop_time
% 1000000));
2002 /* Now report any per-tracepoint status available. */
2003 tp_vec
= all_tracepoints ();
2005 for (ix
= 0; VEC_iterate (breakpoint_p
, tp_vec
, ix
, t
); ix
++)
2006 target_get_tracepoint_status (t
, NULL
);
2008 VEC_free (breakpoint_p
, tp_vec
);
2011 /* Report the trace status to uiout, in a way suitable for MI, and not
2012 suitable for CLI. If ON_STOP is true, suppress a few fields that
2013 are not meaningful in the -trace-stop response.
2015 The implementation is essentially parallel to trace_status_command, but
2016 merging them will result in unreadable code. */
2018 trace_status_mi (int on_stop
)
2020 struct ui_out
*uiout
= current_uiout
;
2021 struct trace_status
*ts
= current_trace_status ();
2024 status
= target_get_trace_status (ts
);
2026 if (status
== -1 && ts
->filename
== NULL
)
2028 uiout
->field_string ("supported", "0");
2032 if (ts
->filename
!= NULL
)
2033 uiout
->field_string ("supported", "file");
2035 uiout
->field_string ("supported", "1");
2037 if (ts
->filename
!= NULL
)
2038 uiout
->field_string ("trace-file", ts
->filename
);
2040 gdb_assert (ts
->running_known
);
2044 uiout
->field_string ("running", "1");
2046 /* Unlike CLI, do not show the state of 'disconnected-tracing' variable.
2047 Given that the frontend gets the status either on -trace-stop, or from
2048 -trace-status after re-connection, it does not seem like this
2049 information is necessary for anything. It is not necessary for either
2050 figuring the vital state of the target nor for navigation of trace
2051 frames. If the frontend wants to show the current state is some
2052 configure dialog, it can request the value when such dialog is
2053 invoked by the user. */
2057 const char *stop_reason
= NULL
;
2058 int stopping_tracepoint
= -1;
2061 uiout
->field_string ("running", "0");
2063 if (ts
->stop_reason
!= trace_stop_reason_unknown
)
2065 switch (ts
->stop_reason
)
2067 case trace_stop_command
:
2068 stop_reason
= "request";
2070 case trace_buffer_full
:
2071 stop_reason
= "overflow";
2073 case trace_disconnected
:
2074 stop_reason
= "disconnection";
2076 case tracepoint_passcount
:
2077 stop_reason
= "passcount";
2078 stopping_tracepoint
= ts
->stopping_tracepoint
;
2080 case tracepoint_error
:
2081 stop_reason
= "error";
2082 stopping_tracepoint
= ts
->stopping_tracepoint
;
2088 uiout
->field_string ("stop-reason", stop_reason
);
2089 if (stopping_tracepoint
!= -1)
2090 uiout
->field_int ("stopping-tracepoint",
2091 stopping_tracepoint
);
2092 if (ts
->stop_reason
== tracepoint_error
)
2093 uiout
->field_string ("error-description",
2099 if (ts
->traceframe_count
!= -1)
2100 uiout
->field_int ("frames", ts
->traceframe_count
);
2101 if (ts
->traceframes_created
!= -1)
2102 uiout
->field_int ("frames-created", ts
->traceframes_created
);
2103 if (ts
->buffer_size
!= -1)
2104 uiout
->field_int ("buffer-size", ts
->buffer_size
);
2105 if (ts
->buffer_free
!= -1)
2106 uiout
->field_int ("buffer-free", ts
->buffer_free
);
2108 uiout
->field_int ("disconnected", ts
->disconnected_tracing
);
2109 uiout
->field_int ("circular", ts
->circular_buffer
);
2111 uiout
->field_string ("user-name", ts
->user_name
);
2112 uiout
->field_string ("notes", ts
->notes
);
2117 xsnprintf (buf
, sizeof buf
, "%ld.%06ld",
2118 (long int) (ts
->start_time
/ 1000000),
2119 (long int) (ts
->start_time
% 1000000));
2120 uiout
->field_string ("start-time", buf
);
2121 xsnprintf (buf
, sizeof buf
, "%ld.%06ld",
2122 (long int) (ts
->stop_time
/ 1000000),
2123 (long int) (ts
->stop_time
% 1000000));
2124 uiout
->field_string ("stop-time", buf
);
2128 /* Check if a trace run is ongoing. If so, and FROM_TTY, query the
2129 user if she really wants to detach. */
2132 query_if_trace_running (int from_tty
)
2137 /* It can happen that the target that was tracing went away on its
2138 own, and we didn't notice. Get a status update, and if the
2139 current target doesn't even do tracing, then assume it's not
2141 if (target_get_trace_status (current_trace_status ()) < 0)
2142 current_trace_status ()->running
= 0;
2144 /* If running interactively, give the user the option to cancel and
2145 then decide what to do differently with the run. Scripts are
2146 just going to disconnect and let the target deal with it,
2147 according to how it's been instructed previously via
2148 disconnected-tracing. */
2149 if (current_trace_status ()->running
)
2151 process_tracepoint_on_disconnect ();
2153 if (current_trace_status ()->disconnected_tracing
)
2155 if (!query (_("Trace is running and will "
2156 "continue after detach; detach anyway? ")))
2157 error (_("Not confirmed."));
2161 if (!query (_("Trace is running but will "
2162 "stop on detach; detach anyway? ")))
2163 error (_("Not confirmed."));
2168 /* This function handles the details of what to do about an ongoing
2169 tracing run if the user has asked to detach or otherwise disconnect
2173 disconnect_tracing (void)
2175 /* Also we want to be out of tfind mode, otherwise things can get
2176 confusing upon reconnection. Just use these calls instead of
2177 full tfind_1 behavior because we're in the middle of detaching,
2178 and there's no point to updating current stack frame etc. */
2179 trace_reset_local_state ();
2182 /* Worker function for the various flavors of the tfind command. */
2184 tfind_1 (enum trace_find_type type
, int num
,
2185 CORE_ADDR addr1
, CORE_ADDR addr2
,
2188 int target_frameno
= -1, target_tracept
= -1;
2189 struct frame_id old_frame_id
= null_frame_id
;
2190 struct tracepoint
*tp
;
2191 struct ui_out
*uiout
= current_uiout
;
2193 /* Only try to get the current stack frame if we have a chance of
2194 succeeding. In particular, if we're trying to get a first trace
2195 frame while all threads are running, it's not going to succeed,
2196 so leave it with a default value and let the frame comparison
2197 below (correctly) decide to print out the source location of the
2199 if (!(type
== tfind_number
&& num
== -1)
2200 && (has_stack_frames () || traceframe_number
>= 0))
2201 old_frame_id
= get_frame_id (get_current_frame ());
2203 target_frameno
= target_trace_find (type
, num
, addr1
, addr2
,
2206 if (type
== tfind_number
2208 && target_frameno
== -1)
2210 /* We told the target to get out of tfind mode, and it did. */
2212 else if (target_frameno
== -1)
2214 /* A request for a non-existent trace frame has failed.
2215 Our response will be different, depending on FROM_TTY:
2217 If FROM_TTY is true, meaning that this command was
2218 typed interactively by the user, then give an error
2219 and DO NOT change the state of traceframe_number etc.
2221 However if FROM_TTY is false, meaning that we're either
2222 in a script, a loop, or a user-defined command, then
2223 DON'T give an error, but DO change the state of
2224 traceframe_number etc. to invalid.
2226 The rationalle is that if you typed the command, you
2227 might just have committed a typo or something, and you'd
2228 like to NOT lose your current debugging state. However
2229 if you're in a user-defined command or especially in a
2230 loop, then you need a way to detect that the command
2231 failed WITHOUT aborting. This allows you to write
2232 scripts that search thru the trace buffer until the end,
2233 and then continue on to do something else. */
2236 error (_("Target failed to find requested trace frame."));
2240 printf_filtered ("End of trace buffer.\n");
2241 #if 0 /* dubious now? */
2242 /* The following will not recurse, since it's
2244 tfind_command ("-1", from_tty
);
2249 tp
= get_tracepoint_by_number_on_target (target_tracept
);
2251 reinit_frame_cache ();
2252 target_dcache_invalidate ();
2254 set_tracepoint_num (tp
? tp
->base
.number
: target_tracept
);
2256 if (target_frameno
!= get_traceframe_number ())
2257 observer_notify_traceframe_changed (target_frameno
, tracepoint_number
);
2259 set_current_traceframe (target_frameno
);
2261 if (target_frameno
== -1)
2262 set_traceframe_context (NULL
);
2264 set_traceframe_context (get_current_frame ());
2266 if (traceframe_number
>= 0)
2268 /* Use different branches for MI and CLI to make CLI messages
2270 if (uiout
->is_mi_like_p ())
2272 uiout
->field_string ("found", "1");
2273 uiout
->field_int ("tracepoint", tracepoint_number
);
2274 uiout
->field_int ("traceframe", traceframe_number
);
2278 printf_unfiltered (_("Found trace frame %d, tracepoint %d\n"),
2279 traceframe_number
, tracepoint_number
);
2284 if (uiout
->is_mi_like_p ())
2285 uiout
->field_string ("found", "0");
2286 else if (type
== tfind_number
&& num
== -1)
2287 printf_unfiltered (_("No longer looking at any trace frame\n"));
2288 else /* This case may never occur, check. */
2289 printf_unfiltered (_("No trace frame found\n"));
2292 /* If we're in nonstop mode and getting out of looking at trace
2293 frames, there won't be any current frame to go back to and
2296 && (has_stack_frames () || traceframe_number
>= 0))
2298 enum print_what print_what
;
2300 /* NOTE: in imitation of the step command, try to determine
2301 whether we have made a transition from one function to
2302 another. If so, we'll print the "stack frame" (ie. the new
2303 function and it's arguments) -- otherwise we'll just show the
2306 if (frame_id_eq (old_frame_id
,
2307 get_frame_id (get_current_frame ())))
2308 print_what
= SRC_LINE
;
2310 print_what
= SRC_AND_LOC
;
2312 print_stack_frame (get_selected_frame (NULL
), 1, print_what
, 1);
2317 /* Error on looking at traceframes while trace is running. */
2320 check_trace_running (struct trace_status
*status
)
2322 if (status
->running
&& status
->filename
== NULL
)
2323 error (_("May not look at trace frames while trace is running."));
2326 /* trace_find_command takes a trace frame number n,
2327 sends "QTFrame:<n>" to the target,
2328 and accepts a reply that may contain several optional pieces
2329 of information: a frame number, a tracepoint number, and an
2330 indication of whether this is a trap frame or a stepping frame.
2332 The minimal response is just "OK" (which indicates that the
2333 target does not give us a frame number or a tracepoint number).
2334 Instead of that, the target may send us a string containing
2336 F<hexnum> (gives the selected frame number)
2337 T<hexnum> (gives the selected tracepoint number)
2342 tfind_command_1 (const char *args
, int from_tty
)
2343 { /* This should only be called with a numeric argument. */
2346 check_trace_running (current_trace_status ());
2348 if (args
== 0 || *args
== 0)
2349 { /* TFIND with no args means find NEXT trace frame. */
2350 if (traceframe_number
== -1)
2351 frameno
= 0; /* "next" is first one. */
2353 frameno
= traceframe_number
+ 1;
2355 else if (0 == strcmp (args
, "-"))
2357 if (traceframe_number
== -1)
2358 error (_("not debugging trace buffer"));
2359 else if (from_tty
&& traceframe_number
== 0)
2360 error (_("already at start of trace buffer"));
2362 frameno
= traceframe_number
- 1;
2364 /* A hack to work around eval's need for fp to have been collected. */
2365 else if (0 == strcmp (args
, "-1"))
2368 frameno
= parse_and_eval_long (args
);
2371 error (_("invalid input (%d is less than zero)"), frameno
);
2373 tfind_1 (tfind_number
, frameno
, 0, 0, from_tty
);
2377 tfind_command (char *args
, int from_tty
)
2379 tfind_command_1 (const_cast<char *> (args
), from_tty
);
2384 tfind_end_command (char *args
, int from_tty
)
2386 tfind_command_1 ("-1", from_tty
);
2391 tfind_start_command (char *args
, int from_tty
)
2393 tfind_command_1 ("0", from_tty
);
2396 /* tfind pc command */
2398 tfind_pc_command (char *args
, int from_tty
)
2402 check_trace_running (current_trace_status ());
2404 if (args
== 0 || *args
== 0)
2405 pc
= regcache_read_pc (get_current_regcache ());
2407 pc
= parse_and_eval_address (args
);
2409 tfind_1 (tfind_pc
, 0, pc
, 0, from_tty
);
2412 /* tfind tracepoint command */
2414 tfind_tracepoint_command (char *args
, int from_tty
)
2417 struct tracepoint
*tp
;
2419 check_trace_running (current_trace_status ());
2421 if (args
== 0 || *args
== 0)
2423 if (tracepoint_number
== -1)
2424 error (_("No current tracepoint -- please supply an argument."));
2426 tdp
= tracepoint_number
; /* Default is current TDP. */
2429 tdp
= parse_and_eval_long (args
);
2431 /* If we have the tracepoint on hand, use the number that the
2432 target knows about (which may be different if we disconnected
2433 and reconnected). */
2434 tp
= get_tracepoint (tdp
);
2436 tdp
= tp
->number_on_target
;
2438 tfind_1 (tfind_tp
, tdp
, 0, 0, from_tty
);
2441 /* TFIND LINE command:
2443 This command will take a sourceline for argument, just like BREAK
2444 or TRACE (ie. anything that "decode_line_1" can handle).
2446 With no argument, this command will find the next trace frame
2447 corresponding to a source line OTHER THAN THE CURRENT ONE. */
2450 tfind_line_command (char *args
, int from_tty
)
2452 static CORE_ADDR start_pc
, end_pc
;
2453 struct symtabs_and_lines sals
;
2454 struct symtab_and_line sal
;
2455 struct cleanup
*old_chain
;
2457 check_trace_running (current_trace_status ());
2459 if (args
== 0 || *args
== 0)
2461 sal
= find_pc_line (get_frame_pc (get_current_frame ()), 0);
2463 sals
.sals
= XNEW (struct symtab_and_line
);
2468 sals
= decode_line_with_current_source (args
, DECODE_LINE_FUNFIRSTLINE
);
2472 old_chain
= make_cleanup (xfree
, sals
.sals
);
2473 if (sal
.symtab
== 0)
2474 error (_("No line number information available."));
2476 if (sal
.line
> 0 && find_line_pc_range (sal
, &start_pc
, &end_pc
))
2478 if (start_pc
== end_pc
)
2480 printf_filtered ("Line %d of \"%s\"",
2482 symtab_to_filename_for_display (sal
.symtab
));
2484 printf_filtered (" is at address ");
2485 print_address (get_current_arch (), start_pc
, gdb_stdout
);
2487 printf_filtered (" but contains no code.\n");
2488 sal
= find_pc_line (start_pc
, 0);
2490 && find_line_pc_range (sal
, &start_pc
, &end_pc
)
2491 && start_pc
!= end_pc
)
2492 printf_filtered ("Attempting to find line %d instead.\n",
2495 error (_("Cannot find a good line."));
2499 /* Is there any case in which we get here, and have an address
2500 which the user would want to see? If we have debugging
2501 symbols and no line numbers? */
2502 error (_("Line number %d is out of range for \"%s\"."),
2503 sal
.line
, symtab_to_filename_for_display (sal
.symtab
));
2505 /* Find within range of stated line. */
2507 tfind_1 (tfind_range
, 0, start_pc
, end_pc
- 1, from_tty
);
2509 tfind_1 (tfind_outside
, 0, start_pc
, end_pc
- 1, from_tty
);
2510 do_cleanups (old_chain
);
2513 /* tfind range command */
2515 tfind_range_command (char *args
, int from_tty
)
2517 static CORE_ADDR start
, stop
;
2520 check_trace_running (current_trace_status ());
2522 if (args
== 0 || *args
== 0)
2523 { /* XXX FIXME: what should default behavior be? */
2524 printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n");
2528 if (0 != (tmp
= strchr (args
, ',')))
2530 *tmp
++ = '\0'; /* Terminate start address. */
2531 tmp
= skip_spaces (tmp
);
2532 start
= parse_and_eval_address (args
);
2533 stop
= parse_and_eval_address (tmp
);
2536 { /* No explicit end address? */
2537 start
= parse_and_eval_address (args
);
2538 stop
= start
+ 1; /* ??? */
2541 tfind_1 (tfind_range
, 0, start
, stop
, from_tty
);
2544 /* tfind outside command */
2546 tfind_outside_command (char *args
, int from_tty
)
2548 CORE_ADDR start
, stop
;
2551 if (current_trace_status ()->running
2552 && current_trace_status ()->filename
== NULL
)
2553 error (_("May not look at trace frames while trace is running."));
2555 if (args
== 0 || *args
== 0)
2556 { /* XXX FIXME: what should default behavior be? */
2557 printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n");
2561 if (0 != (tmp
= strchr (args
, ',')))
2563 *tmp
++ = '\0'; /* Terminate start address. */
2564 tmp
= skip_spaces (tmp
);
2565 start
= parse_and_eval_address (args
);
2566 stop
= parse_and_eval_address (tmp
);
2569 { /* No explicit end address? */
2570 start
= parse_and_eval_address (args
);
2571 stop
= start
+ 1; /* ??? */
2574 tfind_1 (tfind_outside
, 0, start
, stop
, from_tty
);
2577 /* info scope command: list the locals for a scope. */
2579 scope_info (char *args
, int from_tty
)
2581 struct symtabs_and_lines sals
;
2583 struct bound_minimal_symbol msym
;
2584 const struct block
*block
;
2585 const char *symname
;
2586 char *save_args
= args
;
2587 struct block_iterator iter
;
2589 struct gdbarch
*gdbarch
;
2592 if (args
== 0 || *args
== 0)
2593 error (_("requires an argument (function, "
2594 "line or *addr) to define a scope"));
2596 event_location_up location
= string_to_event_location (&args
,
2598 sals
= decode_line_1 (location
.get (), DECODE_LINE_FUNFIRSTLINE
,
2600 if (sals
.nelts
== 0)
2602 /* Presumably decode_line_1 has already warned. */
2606 /* Resolve line numbers to PC. */
2607 resolve_sal_pc (&sals
.sals
[0]);
2608 block
= block_for_pc (sals
.sals
[0].pc
);
2612 QUIT
; /* Allow user to bail out with ^C. */
2613 ALL_BLOCK_SYMBOLS (block
, iter
, sym
)
2615 QUIT
; /* Allow user to bail out with ^C. */
2617 printf_filtered ("Scope for %s:\n", save_args
);
2620 symname
= SYMBOL_PRINT_NAME (sym
);
2621 if (symname
== NULL
|| *symname
== '\0')
2622 continue; /* Probably botched, certainly useless. */
2624 gdbarch
= symbol_arch (sym
);
2626 printf_filtered ("Symbol %s is ", symname
);
2628 if (SYMBOL_COMPUTED_OPS (sym
) != NULL
)
2629 SYMBOL_COMPUTED_OPS (sym
)->describe_location (sym
,
2630 BLOCK_START (block
),
2634 switch (SYMBOL_CLASS (sym
))
2637 case LOC_UNDEF
: /* Messed up symbol? */
2638 printf_filtered ("a bogus symbol, class %d.\n",
2639 SYMBOL_CLASS (sym
));
2640 count
--; /* Don't count this one. */
2643 printf_filtered ("a constant with value %s (%s)",
2644 plongest (SYMBOL_VALUE (sym
)),
2645 hex_string (SYMBOL_VALUE (sym
)));
2647 case LOC_CONST_BYTES
:
2648 printf_filtered ("constant bytes: ");
2649 if (SYMBOL_TYPE (sym
))
2650 for (j
= 0; j
< TYPE_LENGTH (SYMBOL_TYPE (sym
)); j
++)
2651 fprintf_filtered (gdb_stdout
, " %02x",
2652 (unsigned) SYMBOL_VALUE_BYTES (sym
)[j
]);
2655 printf_filtered ("in static storage at address ");
2656 printf_filtered ("%s", paddress (gdbarch
,
2657 SYMBOL_VALUE_ADDRESS (sym
)));
2660 /* GDBARCH is the architecture associated with the objfile
2661 the symbol is defined in; the target architecture may be
2662 different, and may provide additional registers. However,
2663 we do not know the target architecture at this point.
2664 We assume the objfile architecture will contain all the
2665 standard registers that occur in debug info in that
2667 regno
= SYMBOL_REGISTER_OPS (sym
)->register_number (sym
,
2670 if (SYMBOL_IS_ARGUMENT (sym
))
2671 printf_filtered ("an argument in register $%s",
2672 gdbarch_register_name (gdbarch
, regno
));
2674 printf_filtered ("a local variable in register $%s",
2675 gdbarch_register_name (gdbarch
, regno
));
2678 printf_filtered ("an argument at stack/frame offset %s",
2679 plongest (SYMBOL_VALUE (sym
)));
2682 printf_filtered ("a local variable at frame offset %s",
2683 plongest (SYMBOL_VALUE (sym
)));
2686 printf_filtered ("a reference argument at offset %s",
2687 plongest (SYMBOL_VALUE (sym
)));
2689 case LOC_REGPARM_ADDR
:
2690 /* Note comment at LOC_REGISTER. */
2691 regno
= SYMBOL_REGISTER_OPS (sym
)->register_number (sym
,
2693 printf_filtered ("the address of an argument, in register $%s",
2694 gdbarch_register_name (gdbarch
, regno
));
2697 printf_filtered ("a typedef.\n");
2700 printf_filtered ("a label at address ");
2701 printf_filtered ("%s", paddress (gdbarch
,
2702 SYMBOL_VALUE_ADDRESS (sym
)));
2705 printf_filtered ("a function at address ");
2706 printf_filtered ("%s",
2707 paddress (gdbarch
, BLOCK_START (SYMBOL_BLOCK_VALUE (sym
))));
2709 case LOC_UNRESOLVED
:
2710 msym
= lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym
),
2712 if (msym
.minsym
== NULL
)
2713 printf_filtered ("Unresolved Static");
2716 printf_filtered ("static storage at address ");
2717 printf_filtered ("%s",
2719 BMSYMBOL_VALUE_ADDRESS (msym
)));
2722 case LOC_OPTIMIZED_OUT
:
2723 printf_filtered ("optimized out.\n");
2726 gdb_assert_not_reached (_("LOC_COMPUTED variable missing a method"));
2729 if (SYMBOL_TYPE (sym
))
2730 printf_filtered (", length %d.\n",
2731 TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym
))));
2733 if (BLOCK_FUNCTION (block
))
2736 block
= BLOCK_SUPERBLOCK (block
);
2739 printf_filtered ("Scope for %s contains no locals or arguments.\n",
2743 /* Helper for trace_dump_command. Dump the action list starting at
2744 ACTION. STEPPING_ACTIONS is true if we're iterating over the
2745 actions of the body of a while-stepping action. STEPPING_FRAME is
2746 set if the current traceframe was determined to be a while-stepping
2750 trace_dump_actions (struct command_line
*action
,
2751 int stepping_actions
, int stepping_frame
,
2754 const char *action_exp
, *next_comma
;
2756 for (; action
!= NULL
; action
= action
->next
)
2758 struct cmd_list_element
*cmd
;
2760 QUIT
; /* Allow user to bail out with ^C. */
2761 action_exp
= action
->line
;
2762 action_exp
= skip_spaces_const (action_exp
);
2764 /* The collection actions to be done while stepping are
2765 bracketed by the commands "while-stepping" and "end". */
2767 if (*action_exp
== '#') /* comment line */
2770 cmd
= lookup_cmd (&action_exp
, cmdlist
, "", -1, 1);
2772 error (_("Bad action list item: %s"), action_exp
);
2774 if (cmd_cfunc_eq (cmd
, while_stepping_pseudocommand
))
2778 for (i
= 0; i
< action
->body_count
; ++i
)
2779 trace_dump_actions (action
->body_list
[i
],
2780 1, stepping_frame
, from_tty
);
2782 else if (cmd_cfunc_eq (cmd
, collect_pseudocommand
))
2784 /* Display the collected data.
2785 For the trap frame, display only what was collected at
2786 the trap. Likewise for stepping frames, display only
2787 what was collected while stepping. This means that the
2788 two boolean variables, STEPPING_FRAME and
2789 STEPPING_ACTIONS should be equal. */
2790 if (stepping_frame
== stepping_actions
)
2793 struct cleanup
*old_chain
2794 = make_cleanup (free_current_contents
, &cmd
);
2795 int trace_string
= 0;
2797 if (*action_exp
== '/')
2798 action_exp
= decode_agent_options (action_exp
, &trace_string
);
2801 { /* Repeat over a comma-separated list. */
2802 QUIT
; /* Allow user to bail out with ^C. */
2803 if (*action_exp
== ',')
2805 action_exp
= skip_spaces_const (action_exp
);
2807 next_comma
= strchr (action_exp
, ',');
2809 if (0 == strncasecmp (action_exp
, "$reg", 4))
2810 registers_info (NULL
, from_tty
);
2811 else if (0 == strncasecmp (action_exp
, "$_ret", 5))
2813 else if (0 == strncasecmp (action_exp
, "$loc", 4))
2814 locals_info (NULL
, from_tty
);
2815 else if (0 == strncasecmp (action_exp
, "$arg", 4))
2816 args_info (NULL
, from_tty
);
2819 if (next_comma
!= NULL
)
2821 size_t len
= next_comma
- action_exp
;
2823 cmd
= (char *) xrealloc (cmd
, len
+ 1);
2824 memcpy (cmd
, action_exp
, len
);
2829 size_t len
= strlen (action_exp
);
2831 cmd
= (char *) xrealloc (cmd
, len
+ 1);
2832 memcpy (cmd
, action_exp
, len
+ 1);
2835 printf_filtered ("%s = ", cmd
);
2836 output_command_const (cmd
, from_tty
);
2837 printf_filtered ("\n");
2839 action_exp
= next_comma
;
2841 while (action_exp
&& *action_exp
== ',');
2843 do_cleanups (old_chain
);
2849 /* Return bp_location of the tracepoint associated with the current
2850 traceframe. Set *STEPPING_FRAME_P to 1 if the current traceframe
2851 is a stepping traceframe. */
2853 struct bp_location
*
2854 get_traceframe_location (int *stepping_frame_p
)
2856 struct tracepoint
*t
;
2857 struct bp_location
*tloc
;
2858 struct regcache
*regcache
;
2860 if (tracepoint_number
== -1)
2861 error (_("No current trace frame."));
2863 t
= get_tracepoint (tracepoint_number
);
2866 error (_("No known tracepoint matches 'current' tracepoint #%d."),
2869 /* The current frame is a trap frame if the frame PC is equal to the
2870 tracepoint PC. If not, then the current frame was collected
2871 during single-stepping. */
2872 regcache
= get_current_regcache ();
2874 /* If the traceframe's address matches any of the tracepoint's
2875 locations, assume it is a direct hit rather than a while-stepping
2876 frame. (FIXME this is not reliable, should record each frame's
2878 for (tloc
= t
->base
.loc
; tloc
; tloc
= tloc
->next
)
2879 if (tloc
->address
== regcache_read_pc (regcache
))
2881 *stepping_frame_p
= 0;
2885 /* If this is a stepping frame, we don't know which location
2886 triggered. The first is as good (or bad) a guess as any... */
2887 *stepping_frame_p
= 1;
2891 /* Return all the actions, including default collect, of a tracepoint
2892 T. It constructs cleanups into the chain, and leaves the caller to
2893 handle them (call do_cleanups). */
2895 static struct command_line
*
2896 all_tracepoint_actions_and_cleanup (struct breakpoint
*t
)
2898 struct command_line
*actions
;
2900 actions
= breakpoint_commands (t
);
2902 /* If there are default expressions to collect, make up a collect
2903 action and prepend to the action list to encode. Note that since
2904 validation is per-tracepoint (local var "xyz" might be valid for
2905 one tracepoint and not another, etc), we make up the action on
2906 the fly, and don't cache it. */
2907 if (*default_collect
)
2909 struct command_line
*default_collect_action
;
2910 char *default_collect_line
;
2912 default_collect_line
= xstrprintf ("collect %s", default_collect
);
2913 make_cleanup (xfree
, default_collect_line
);
2915 validate_actionline (default_collect_line
, t
);
2916 default_collect_action
= XNEW (struct command_line
);
2917 make_cleanup (xfree
, default_collect_action
);
2918 default_collect_action
->next
= actions
;
2919 default_collect_action
->line
= default_collect_line
;
2920 actions
= default_collect_action
;
2926 /* The tdump command. */
2929 tdump_command (char *args
, int from_tty
)
2931 int stepping_frame
= 0;
2932 struct bp_location
*loc
;
2933 struct cleanup
*old_chain
;
2934 struct command_line
*actions
;
2936 /* This throws an error is not inspecting a trace frame. */
2937 loc
= get_traceframe_location (&stepping_frame
);
2939 printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n",
2940 tracepoint_number
, traceframe_number
);
2942 /* This command only makes sense for the current frame, not the
2944 old_chain
= make_cleanup_restore_current_thread ();
2945 select_frame (get_current_frame ());
2947 actions
= all_tracepoint_actions_and_cleanup (loc
->owner
);
2949 trace_dump_actions (actions
, 0, stepping_frame
, from_tty
);
2951 do_cleanups (old_chain
);
2954 /* Encode a piece of a tracepoint's source-level definition in a form
2955 that is suitable for both protocol and saving in files. */
2956 /* This version does not do multiple encodes for long strings; it should
2957 return an offset to the next piece to encode. FIXME */
2960 encode_source_string (int tpnum
, ULONGEST addr
,
2961 const char *srctype
, const char *src
,
2962 char *buf
, int buf_size
)
2964 if (80 + strlen (srctype
) > buf_size
)
2965 error (_("Buffer too small for source encoding"));
2966 sprintf (buf
, "%x:%s:%s:%x:%x:",
2967 tpnum
, phex_nz (addr
, sizeof (addr
)),
2968 srctype
, 0, (int) strlen (src
));
2969 if (strlen (buf
) + strlen (src
) * 2 >= buf_size
)
2970 error (_("Source string too long for buffer"));
2971 bin2hex ((gdb_byte
*) src
, buf
+ strlen (buf
), strlen (src
));
2975 /* Tell the target what to do with an ongoing tracing run if GDB
2976 disconnects for some reason. */
2979 set_disconnected_tracing (char *args
, int from_tty
,
2980 struct cmd_list_element
*c
)
2982 target_set_disconnected_tracing (disconnected_tracing
);
2986 set_circular_trace_buffer (char *args
, int from_tty
,
2987 struct cmd_list_element
*c
)
2989 target_set_circular_trace_buffer (circular_trace_buffer
);
2993 set_trace_buffer_size (char *args
, int from_tty
,
2994 struct cmd_list_element
*c
)
2996 target_set_trace_buffer_size (trace_buffer_size
);
3000 set_trace_user (char *args
, int from_tty
,
3001 struct cmd_list_element
*c
)
3005 ret
= target_set_trace_notes (trace_user
, NULL
, NULL
);
3008 warning (_("Target does not support trace notes, user ignored"));
3012 set_trace_notes (char *args
, int from_tty
,
3013 struct cmd_list_element
*c
)
3017 ret
= target_set_trace_notes (NULL
, trace_notes
, NULL
);
3020 warning (_("Target does not support trace notes, note ignored"));
3024 set_trace_stop_notes (char *args
, int from_tty
,
3025 struct cmd_list_element
*c
)
3029 ret
= target_set_trace_notes (NULL
, NULL
, trace_stop_notes
);
3032 warning (_("Target does not support trace notes, stop note ignored"));
3035 /* Convert the memory pointed to by mem into hex, placing result in buf.
3036 * Return a pointer to the last char put in buf (null)
3037 * "stolen" from sparc-stub.c
3040 static const char hexchars
[] = "0123456789abcdef";
3043 mem2hex (gdb_byte
*mem
, char *buf
, int count
)
3051 *buf
++ = hexchars
[ch
>> 4];
3052 *buf
++ = hexchars
[ch
& 0xf];
3061 get_traceframe_number (void)
3063 return traceframe_number
;
3067 get_tracepoint_number (void)
3069 return tracepoint_number
;
3072 /* Make the traceframe NUM be the current trace frame. Does nothing
3073 if NUM is already current. */
3076 set_current_traceframe (int num
)
3080 if (traceframe_number
== num
)
3082 /* Nothing to do. */
3086 newnum
= target_trace_find (tfind_number
, num
, 0, 0, NULL
);
3089 warning (_("could not change traceframe"));
3091 set_traceframe_num (newnum
);
3093 /* Changing the traceframe changes our view of registers and of the
3095 registers_changed ();
3097 clear_traceframe_info ();
3100 /* A cleanup used when switching away and back from tfind mode. */
3102 struct current_traceframe_cleanup
3104 /* The traceframe we were inspecting. */
3105 int traceframe_number
;
3109 do_restore_current_traceframe_cleanup (void *arg
)
3111 struct current_traceframe_cleanup
*old
3112 = (struct current_traceframe_cleanup
*) arg
;
3114 set_current_traceframe (old
->traceframe_number
);
3118 restore_current_traceframe_cleanup_dtor (void *arg
)
3120 struct current_traceframe_cleanup
*old
3121 = (struct current_traceframe_cleanup
*) arg
;
3127 make_cleanup_restore_current_traceframe (void)
3129 struct current_traceframe_cleanup
*old
=
3130 XNEW (struct current_traceframe_cleanup
);
3132 old
->traceframe_number
= traceframe_number
;
3134 return make_cleanup_dtor (do_restore_current_traceframe_cleanup
, old
,
3135 restore_current_traceframe_cleanup_dtor
);
3138 /* Given a number and address, return an uploaded tracepoint with that
3139 number, creating if necessary. */
3141 struct uploaded_tp
*
3142 get_uploaded_tp (int num
, ULONGEST addr
, struct uploaded_tp
**utpp
)
3144 struct uploaded_tp
*utp
;
3146 for (utp
= *utpp
; utp
; utp
= utp
->next
)
3147 if (utp
->number
== num
&& utp
->addr
== addr
)
3150 utp
= XCNEW (struct uploaded_tp
);
3153 utp
->actions
= NULL
;
3154 utp
->step_actions
= NULL
;
3155 utp
->cmd_strings
= NULL
;
3163 free_uploaded_tps (struct uploaded_tp
**utpp
)
3165 struct uploaded_tp
*next_one
;
3169 next_one
= (*utpp
)->next
;
3175 /* Given a number and address, return an uploaded tracepoint with that
3176 number, creating if necessary. */
3178 struct uploaded_tsv
*
3179 get_uploaded_tsv (int num
, struct uploaded_tsv
**utsvp
)
3181 struct uploaded_tsv
*utsv
;
3183 for (utsv
= *utsvp
; utsv
; utsv
= utsv
->next
)
3184 if (utsv
->number
== num
)
3187 utsv
= XCNEW (struct uploaded_tsv
);
3189 utsv
->next
= *utsvp
;
3196 free_uploaded_tsvs (struct uploaded_tsv
**utsvp
)
3198 struct uploaded_tsv
*next_one
;
3202 next_one
= (*utsvp
)->next
;
3208 /* FIXME this function is heuristic and will miss the cases where the
3209 conditional is semantically identical but differs in whitespace,
3210 such as "x == 0" vs "x==0". */
3213 cond_string_is_same (char *str1
, char *str2
)
3215 if (str1
== NULL
|| str2
== NULL
)
3216 return (str1
== str2
);
3218 return (strcmp (str1
, str2
) == 0);
3221 /* Look for an existing tracepoint that seems similar enough to the
3222 uploaded one. Enablement isn't compared, because the user can
3223 toggle that freely, and may have done so in anticipation of the
3224 next trace run. Return the location of matched tracepoint. */
3226 static struct bp_location
*
3227 find_matching_tracepoint_location (struct uploaded_tp
*utp
)
3229 VEC(breakpoint_p
) *tp_vec
= all_tracepoints ();
3231 struct breakpoint
*b
;
3232 struct bp_location
*loc
;
3234 for (ix
= 0; VEC_iterate (breakpoint_p
, tp_vec
, ix
, b
); ix
++)
3236 struct tracepoint
*t
= (struct tracepoint
*) b
;
3238 if (b
->type
== utp
->type
3239 && t
->step_count
== utp
->step
3240 && t
->pass_count
== utp
->pass
3241 && cond_string_is_same (t
->base
.cond_string
, utp
->cond_string
)
3242 /* FIXME also test actions. */
3245 /* Scan the locations for an address match. */
3246 for (loc
= b
->loc
; loc
; loc
= loc
->next
)
3248 if (loc
->address
== utp
->addr
)
3256 /* Given a list of tracepoints uploaded from a target, attempt to
3257 match them up with existing tracepoints, and create new ones if not
3261 merge_uploaded_tracepoints (struct uploaded_tp
**uploaded_tps
)
3263 struct uploaded_tp
*utp
;
3264 /* A set of tracepoints which are modified. */
3265 VEC(breakpoint_p
) *modified_tp
= NULL
;
3267 struct breakpoint
*b
;
3269 /* Look for GDB tracepoints that match up with our uploaded versions. */
3270 for (utp
= *uploaded_tps
; utp
; utp
= utp
->next
)
3272 struct bp_location
*loc
;
3273 struct tracepoint
*t
;
3275 loc
= find_matching_tracepoint_location (utp
);
3280 /* Mark this location as already inserted. */
3282 t
= (struct tracepoint
*) loc
->owner
;
3283 printf_filtered (_("Assuming tracepoint %d is same "
3284 "as target's tracepoint %d at %s.\n"),
3285 loc
->owner
->number
, utp
->number
,
3286 paddress (loc
->gdbarch
, utp
->addr
));
3288 /* The tracepoint LOC->owner was modified (the location LOC
3289 was marked as inserted in the target). Save it in
3290 MODIFIED_TP if not there yet. The 'breakpoint-modified'
3291 observers will be notified later once for each tracepoint
3292 saved in MODIFIED_TP. */
3294 VEC_iterate (breakpoint_p
, modified_tp
, ix
, b
);
3296 if (b
== loc
->owner
)
3302 VEC_safe_push (breakpoint_p
, modified_tp
, loc
->owner
);
3306 t
= create_tracepoint_from_upload (utp
);
3308 printf_filtered (_("Created tracepoint %d for "
3309 "target's tracepoint %d at %s.\n"),
3310 t
->base
.number
, utp
->number
,
3311 paddress (get_current_arch (), utp
->addr
));
3313 printf_filtered (_("Failed to create tracepoint for target's "
3314 "tracepoint %d at %s, skipping it.\n"),
3316 paddress (get_current_arch (), utp
->addr
));
3318 /* Whether found or created, record the number used by the
3319 target, to help with mapping target tracepoints back to their
3320 counterparts here. */
3322 t
->number_on_target
= utp
->number
;
3325 /* Notify 'breakpoint-modified' observer that at least one of B's
3326 locations was changed. */
3327 for (ix
= 0; VEC_iterate (breakpoint_p
, modified_tp
, ix
, b
); ix
++)
3328 observer_notify_breakpoint_modified (b
);
3330 VEC_free (breakpoint_p
, modified_tp
);
3331 free_uploaded_tps (uploaded_tps
);
3334 /* Trace state variables don't have much to identify them beyond their
3335 name, so just use that to detect matches. */
3337 static struct trace_state_variable
*
3338 find_matching_tsv (struct uploaded_tsv
*utsv
)
3343 return find_trace_state_variable (utsv
->name
);
3346 static struct trace_state_variable
*
3347 create_tsv_from_upload (struct uploaded_tsv
*utsv
)
3349 const char *namebase
;
3352 struct trace_state_variable
*tsv
;
3353 struct cleanup
*old_chain
;
3357 namebase
= utsv
->name
;
3358 buf
= xstrprintf ("%s", namebase
);
3363 buf
= xstrprintf ("%s_%d", namebase
, try_num
++);
3366 /* Fish for a name that is not in use. */
3367 /* (should check against all internal vars?) */
3368 while (find_trace_state_variable (buf
))
3371 buf
= xstrprintf ("%s_%d", namebase
, try_num
++);
3374 old_chain
= make_cleanup (xfree
, buf
);
3376 /* We have an available name, create the variable. */
3377 tsv
= create_trace_state_variable (buf
);
3378 tsv
->initial_value
= utsv
->initial_value
;
3379 tsv
->builtin
= utsv
->builtin
;
3381 observer_notify_tsv_created (tsv
);
3383 do_cleanups (old_chain
);
3388 /* Given a list of uploaded trace state variables, try to match them
3389 up with existing variables, or create additional ones. */
3392 merge_uploaded_trace_state_variables (struct uploaded_tsv
**uploaded_tsvs
)
3395 struct uploaded_tsv
*utsv
;
3396 struct trace_state_variable
*tsv
;
3399 /* Most likely some numbers will have to be reassigned as part of
3400 the merge, so clear them all in anticipation. */
3401 for (ix
= 0; VEC_iterate (tsv_s
, tvariables
, ix
, tsv
); ++ix
)
3404 for (utsv
= *uploaded_tsvs
; utsv
; utsv
= utsv
->next
)
3406 tsv
= find_matching_tsv (utsv
);
3410 printf_filtered (_("Assuming trace state variable $%s "
3411 "is same as target's variable %d.\n"),
3412 tsv
->name
, utsv
->number
);
3416 tsv
= create_tsv_from_upload (utsv
);
3418 printf_filtered (_("Created trace state variable "
3419 "$%s for target's variable %d.\n"),
3420 tsv
->name
, utsv
->number
);
3422 /* Give precedence to numberings that come from the target. */
3424 tsv
->number
= utsv
->number
;
3427 /* Renumber everything that didn't get a target-assigned number. */
3429 for (ix
= 0; VEC_iterate (tsv_s
, tvariables
, ix
, tsv
); ++ix
)
3430 if (tsv
->number
> highest
)
3431 highest
= tsv
->number
;
3434 for (ix
= 0; VEC_iterate (tsv_s
, tvariables
, ix
, tsv
); ++ix
)
3435 if (tsv
->number
== 0)
3436 tsv
->number
= highest
++;
3438 free_uploaded_tsvs (uploaded_tsvs
);
3441 /* Parse the part of trace status syntax that is shared between
3442 the remote protocol and the trace file reader. */
3445 parse_trace_status (char *line
, struct trace_status
*ts
)
3447 char *p
= line
, *p1
, *p2
, *p3
, *p_temp
;
3451 ts
->running_known
= 1;
3452 ts
->running
= (*p
++ == '1');
3453 ts
->stop_reason
= trace_stop_reason_unknown
;
3454 xfree (ts
->stop_desc
);
3455 ts
->stop_desc
= NULL
;
3456 ts
->traceframe_count
= -1;
3457 ts
->traceframes_created
= -1;
3458 ts
->buffer_free
= -1;
3459 ts
->buffer_size
= -1;
3460 ts
->disconnected_tracing
= 0;
3461 ts
->circular_buffer
= 0;
3462 xfree (ts
->user_name
);
3463 ts
->user_name
= NULL
;
3466 ts
->start_time
= ts
->stop_time
= 0;
3470 p1
= strchr (p
, ':');
3472 error (_("Malformed trace status, at %s\n\
3473 Status line: '%s'\n"), p
, line
);
3474 p3
= strchr (p
, ';');
3476 p3
= p
+ strlen (p
);
3477 if (strncmp (p
, stop_reason_names
[trace_buffer_full
], p1
- p
) == 0)
3479 p
= unpack_varlen_hex (++p1
, &val
);
3480 ts
->stop_reason
= trace_buffer_full
;
3482 else if (strncmp (p
, stop_reason_names
[trace_never_run
], p1
- p
) == 0)
3484 p
= unpack_varlen_hex (++p1
, &val
);
3485 ts
->stop_reason
= trace_never_run
;
3487 else if (strncmp (p
, stop_reason_names
[tracepoint_passcount
],
3490 p
= unpack_varlen_hex (++p1
, &val
);
3491 ts
->stop_reason
= tracepoint_passcount
;
3492 ts
->stopping_tracepoint
= val
;
3494 else if (strncmp (p
, stop_reason_names
[trace_stop_command
], p1
- p
) == 0)
3496 p2
= strchr (++p1
, ':');
3504 ts
->stop_desc
= (char *) xmalloc (strlen (line
));
3505 end
= hex2bin (p1
, (gdb_byte
*) ts
->stop_desc
, (p2
- p1
) / 2);
3506 ts
->stop_desc
[end
] = '\0';
3509 ts
->stop_desc
= xstrdup ("");
3511 p
= unpack_varlen_hex (++p2
, &val
);
3512 ts
->stop_reason
= trace_stop_command
;
3514 else if (strncmp (p
, stop_reason_names
[trace_disconnected
], p1
- p
) == 0)
3516 p
= unpack_varlen_hex (++p1
, &val
);
3517 ts
->stop_reason
= trace_disconnected
;
3519 else if (strncmp (p
, stop_reason_names
[tracepoint_error
], p1
- p
) == 0)
3521 p2
= strchr (++p1
, ':');
3524 ts
->stop_desc
= (char *) xmalloc ((p2
- p1
) / 2 + 1);
3525 end
= hex2bin (p1
, (gdb_byte
*) ts
->stop_desc
, (p2
- p1
) / 2);
3526 ts
->stop_desc
[end
] = '\0';
3529 ts
->stop_desc
= xstrdup ("");
3531 p
= unpack_varlen_hex (++p2
, &val
);
3532 ts
->stopping_tracepoint
= val
;
3533 ts
->stop_reason
= tracepoint_error
;
3535 else if (strncmp (p
, "tframes", p1
- p
) == 0)
3537 p
= unpack_varlen_hex (++p1
, &val
);
3538 ts
->traceframe_count
= val
;
3540 else if (strncmp (p
, "tcreated", p1
- p
) == 0)
3542 p
= unpack_varlen_hex (++p1
, &val
);
3543 ts
->traceframes_created
= val
;
3545 else if (strncmp (p
, "tfree", p1
- p
) == 0)
3547 p
= unpack_varlen_hex (++p1
, &val
);
3548 ts
->buffer_free
= val
;
3550 else if (strncmp (p
, "tsize", p1
- p
) == 0)
3552 p
= unpack_varlen_hex (++p1
, &val
);
3553 ts
->buffer_size
= val
;
3555 else if (strncmp (p
, "disconn", p1
- p
) == 0)
3557 p
= unpack_varlen_hex (++p1
, &val
);
3558 ts
->disconnected_tracing
= val
;
3560 else if (strncmp (p
, "circular", p1
- p
) == 0)
3562 p
= unpack_varlen_hex (++p1
, &val
);
3563 ts
->circular_buffer
= val
;
3565 else if (strncmp (p
, "starttime", p1
- p
) == 0)
3567 p
= unpack_varlen_hex (++p1
, &val
);
3568 ts
->start_time
= val
;
3570 else if (strncmp (p
, "stoptime", p1
- p
) == 0)
3572 p
= unpack_varlen_hex (++p1
, &val
);
3573 ts
->stop_time
= val
;
3575 else if (strncmp (p
, "username", p1
- p
) == 0)
3578 ts
->user_name
= (char *) xmalloc (strlen (p
) / 2);
3579 end
= hex2bin (p1
, (gdb_byte
*) ts
->user_name
, (p3
- p1
) / 2);
3580 ts
->user_name
[end
] = '\0';
3583 else if (strncmp (p
, "notes", p1
- p
) == 0)
3586 ts
->notes
= (char *) xmalloc (strlen (p
) / 2);
3587 end
= hex2bin (p1
, (gdb_byte
*) ts
->notes
, (p3
- p1
) / 2);
3588 ts
->notes
[end
] = '\0';
3593 /* Silently skip unknown optional info. */
3594 p_temp
= strchr (p1
+ 1, ';');
3598 /* Must be at the end. */
3605 parse_tracepoint_status (char *p
, struct breakpoint
*bp
,
3606 struct uploaded_tp
*utp
)
3609 struct tracepoint
*tp
= (struct tracepoint
*) bp
;
3611 p
= unpack_varlen_hex (p
, &uval
);
3613 tp
->base
.hit_count
+= uval
;
3615 utp
->hit_count
+= uval
;
3616 p
= unpack_varlen_hex (p
+ 1, &uval
);
3618 tp
->traceframe_usage
+= uval
;
3620 utp
->traceframe_usage
+= uval
;
3621 /* Ignore any extra, allowing for future extensions. */
3624 /* Given a line of text defining a part of a tracepoint, parse it into
3625 an "uploaded tracepoint". */
3628 parse_tracepoint_definition (char *line
, struct uploaded_tp
**utpp
)
3632 ULONGEST num
, addr
, step
, pass
, orig_size
, xlen
, start
;
3635 char *cond
, *srctype
, *buf
;
3636 struct uploaded_tp
*utp
= NULL
;
3639 /* Both tracepoint and action definitions start with the same number
3640 and address sequence. */
3642 p
= unpack_varlen_hex (p
, &num
);
3643 p
++; /* skip a colon */
3644 p
= unpack_varlen_hex (p
, &addr
);
3645 p
++; /* skip a colon */
3648 enabled
= (*p
++ == 'E');
3649 p
++; /* skip a colon */
3650 p
= unpack_varlen_hex (p
, &step
);
3651 p
++; /* skip a colon */
3652 p
= unpack_varlen_hex (p
, &pass
);
3653 type
= bp_tracepoint
;
3655 /* Thumb through optional fields. */
3658 p
++; /* skip a colon */
3661 type
= bp_fast_tracepoint
;
3663 p
= unpack_varlen_hex (p
, &orig_size
);
3667 type
= bp_static_tracepoint
;
3673 p
= unpack_varlen_hex (p
, &xlen
);
3674 p
++; /* skip a comma */
3675 cond
= (char *) xmalloc (2 * xlen
+ 1);
3676 strncpy (cond
, p
, 2 * xlen
);
3677 cond
[2 * xlen
] = '\0';
3681 warning (_("Unrecognized char '%c' in tracepoint "
3682 "definition, skipping rest"), *p
);
3684 utp
= get_uploaded_tp (num
, addr
, utpp
);
3686 utp
->enabled
= enabled
;
3691 else if (piece
== 'A')
3693 utp
= get_uploaded_tp (num
, addr
, utpp
);
3694 VEC_safe_push (char_ptr
, utp
->actions
, xstrdup (p
));
3696 else if (piece
== 'S')
3698 utp
= get_uploaded_tp (num
, addr
, utpp
);
3699 VEC_safe_push (char_ptr
, utp
->step_actions
, xstrdup (p
));
3701 else if (piece
== 'Z')
3703 /* Parse a chunk of source form definition. */
3704 utp
= get_uploaded_tp (num
, addr
, utpp
);
3706 p
= strchr (p
, ':');
3707 p
++; /* skip a colon */
3708 p
= unpack_varlen_hex (p
, &start
);
3709 p
++; /* skip a colon */
3710 p
= unpack_varlen_hex (p
, &xlen
);
3711 p
++; /* skip a colon */
3713 buf
= (char *) alloca (strlen (line
));
3715 end
= hex2bin (p
, (gdb_byte
*) buf
, strlen (p
) / 2);
3718 if (startswith (srctype
, "at:"))
3719 utp
->at_string
= xstrdup (buf
);
3720 else if (startswith (srctype
, "cond:"))
3721 utp
->cond_string
= xstrdup (buf
);
3722 else if (startswith (srctype
, "cmd:"))
3723 VEC_safe_push (char_ptr
, utp
->cmd_strings
, xstrdup (buf
));
3725 else if (piece
== 'V')
3727 utp
= get_uploaded_tp (num
, addr
, utpp
);
3729 parse_tracepoint_status (p
, NULL
, utp
);
3733 /* Don't error out, the target might be sending us optional
3734 info that we don't care about. */
3735 warning (_("Unrecognized tracepoint piece '%c', ignoring"), piece
);
3739 /* Convert a textual description of a trace state variable into an
3743 parse_tsv_definition (char *line
, struct uploaded_tsv
**utsvp
)
3746 ULONGEST num
, initval
, builtin
;
3748 struct uploaded_tsv
*utsv
= NULL
;
3750 buf
= (char *) alloca (strlen (line
));
3753 p
= unpack_varlen_hex (p
, &num
);
3754 p
++; /* skip a colon */
3755 p
= unpack_varlen_hex (p
, &initval
);
3756 p
++; /* skip a colon */
3757 p
= unpack_varlen_hex (p
, &builtin
);
3758 p
++; /* skip a colon */
3759 end
= hex2bin (p
, (gdb_byte
*) buf
, strlen (p
) / 2);
3762 utsv
= get_uploaded_tsv (num
, utsvp
);
3763 utsv
->initial_value
= initval
;
3764 utsv
->builtin
= builtin
;
3765 utsv
->name
= xstrdup (buf
);
3769 free_current_marker (void *arg
)
3771 struct static_tracepoint_marker
**marker_p
3772 = (struct static_tracepoint_marker
**) arg
;
3774 if (*marker_p
!= NULL
)
3776 release_static_tracepoint_marker (*marker_p
);
3783 /* Given a line of text defining a static tracepoint marker, parse it
3784 into a "static tracepoint marker" object. Throws an error is
3785 parsing fails. If PP is non-null, it points to one past the end of
3786 the parsed marker definition. */
3789 parse_static_tracepoint_marker_definition (char *line
, char **pp
,
3790 struct static_tracepoint_marker
*marker
)
3797 p
= unpack_varlen_hex (p
, &addr
);
3798 p
++; /* skip a colon */
3800 marker
->gdbarch
= target_gdbarch ();
3801 marker
->address
= (CORE_ADDR
) addr
;
3803 endp
= strchr (p
, ':');
3805 error (_("bad marker definition: %s"), line
);
3807 marker
->str_id
= (char *) xmalloc (endp
- p
+ 1);
3808 end
= hex2bin (p
, (gdb_byte
*) marker
->str_id
, (endp
- p
+ 1) / 2);
3809 marker
->str_id
[end
] = '\0';
3812 p
++; /* skip a colon */
3814 marker
->extra
= (char *) xmalloc (strlen (p
) + 1);
3815 end
= hex2bin (p
, (gdb_byte
*) marker
->extra
, strlen (p
) / 2);
3816 marker
->extra
[end
] = '\0';
3822 /* Release a static tracepoint marker's contents. Note that the
3823 object itself isn't released here. There objects are usually on
3827 release_static_tracepoint_marker (struct static_tracepoint_marker
*marker
)
3829 xfree (marker
->str_id
);
3830 marker
->str_id
= NULL
;
3833 /* Print MARKER to gdb_stdout. */
3836 print_one_static_tracepoint_marker (int count
,
3837 struct static_tracepoint_marker
*marker
)
3841 char wrap_indent
[80];
3842 char extra_field_indent
[80];
3843 struct ui_out
*uiout
= current_uiout
;
3844 struct cleanup
*bkpt_chain
;
3845 VEC(breakpoint_p
) *tracepoints
;
3847 struct symtab_and_line sal
;
3851 sal
.pc
= marker
->address
;
3853 tracepoints
= static_tracepoints_here (marker
->address
);
3855 bkpt_chain
= make_cleanup_ui_out_tuple_begin_end (uiout
, "marker");
3857 /* A counter field to help readability. This is not a stable
3859 uiout
->field_int ("count", count
);
3861 uiout
->field_string ("marker-id", marker
->str_id
);
3863 uiout
->field_fmt ("enabled", "%c",
3864 !VEC_empty (breakpoint_p
, tracepoints
) ? 'y' : 'n');
3867 strcpy (wrap_indent
, " ");
3869 if (gdbarch_addr_bit (marker
->gdbarch
) <= 32)
3870 strcat (wrap_indent
, " ");
3872 strcat (wrap_indent
, " ");
3874 strcpy (extra_field_indent
, " ");
3876 uiout
->field_core_addr ("addr", marker
->gdbarch
, marker
->address
);
3878 sal
= find_pc_line (marker
->address
, 0);
3879 sym
= find_pc_sect_function (marker
->address
, NULL
);
3882 uiout
->text ("in ");
3883 uiout
->field_string ("func",
3884 SYMBOL_PRINT_NAME (sym
));
3885 uiout
->wrap_hint (wrap_indent
);
3886 uiout
->text (" at ");
3889 uiout
->field_skip ("func");
3891 if (sal
.symtab
!= NULL
)
3893 uiout
->field_string ("file",
3894 symtab_to_filename_for_display (sal
.symtab
));
3897 if (uiout
->is_mi_like_p ())
3899 const char *fullname
= symtab_to_fullname (sal
.symtab
);
3901 uiout
->field_string ("fullname", fullname
);
3904 uiout
->field_skip ("fullname");
3906 uiout
->field_int ("line", sal
.line
);
3910 uiout
->field_skip ("fullname");
3911 uiout
->field_skip ("line");
3915 uiout
->text (extra_field_indent
);
3916 uiout
->text (_("Data: \""));
3917 uiout
->field_string ("extra-data", marker
->extra
);
3918 uiout
->text ("\"\n");
3920 if (!VEC_empty (breakpoint_p
, tracepoints
))
3922 struct cleanup
*cleanup_chain
;
3924 struct breakpoint
*b
;
3926 cleanup_chain
= make_cleanup_ui_out_tuple_begin_end (uiout
,
3929 uiout
->text (extra_field_indent
);
3930 uiout
->text (_("Probed by static tracepoints: "));
3931 for (ix
= 0; VEC_iterate(breakpoint_p
, tracepoints
, ix
, b
); ix
++)
3936 uiout
->field_int ("tracepoint-id", b
->number
);
3939 do_cleanups (cleanup_chain
);
3941 if (uiout
->is_mi_like_p ())
3942 uiout
->field_int ("number-of-tracepoints",
3943 VEC_length(breakpoint_p
, tracepoints
));
3947 VEC_free (breakpoint_p
, tracepoints
);
3949 do_cleanups (bkpt_chain
);
3953 info_static_tracepoint_markers_command (char *arg
, int from_tty
)
3955 VEC(static_tracepoint_marker_p
) *markers
;
3956 struct cleanup
*old_chain
;
3957 struct static_tracepoint_marker
*marker
;
3958 struct ui_out
*uiout
= current_uiout
;
3961 /* We don't have to check target_can_use_agent and agent's capability on
3962 static tracepoint here, in order to be compatible with older GDBserver.
3963 We don't check USE_AGENT is true or not, because static tracepoints
3964 don't work without in-process agent, so we don't bother users to type
3965 `set agent on' when to use static tracepoint. */
3968 = make_cleanup_ui_out_table_begin_end (uiout
, 5, -1,
3969 "StaticTracepointMarkersTable");
3971 uiout
->table_header (7, ui_left
, "counter", "Cnt");
3973 uiout
->table_header (40, ui_left
, "marker-id", "ID");
3975 uiout
->table_header (3, ui_left
, "enabled", "Enb");
3976 if (gdbarch_addr_bit (target_gdbarch ()) <= 32)
3977 uiout
->table_header (10, ui_left
, "addr", "Address");
3979 uiout
->table_header (18, ui_left
, "addr", "Address");
3980 uiout
->table_header (40, ui_noalign
, "what", "What");
3982 uiout
->table_body ();
3984 markers
= target_static_tracepoint_markers_by_strid (NULL
);
3985 make_cleanup (VEC_cleanup (static_tracepoint_marker_p
), &markers
);
3988 VEC_iterate (static_tracepoint_marker_p
,
3989 markers
, i
, marker
);
3992 print_one_static_tracepoint_marker (i
+ 1, marker
);
3993 release_static_tracepoint_marker (marker
);
3996 do_cleanups (old_chain
);
3999 /* The $_sdata convenience variable is a bit special. We don't know
4000 for sure type of the value until we actually have a chance to fetch
4001 the data --- the size of the object depends on what has been
4002 collected. We solve this by making $_sdata be an internalvar that
4003 creates a new value on access. */
4005 /* Return a new value with the correct type for the sdata object of
4006 the current trace frame. Return a void value if there's no object
4009 static struct value
*
4010 sdata_make_value (struct gdbarch
*gdbarch
, struct internalvar
*var
,
4016 /* We need to read the whole object before we know its size. */
4017 size
= target_read_alloc (¤t_target
,
4018 TARGET_OBJECT_STATIC_TRACE_DATA
,
4025 type
= init_vector_type (builtin_type (gdbarch
)->builtin_true_char
,
4027 v
= allocate_value (type
);
4028 memcpy (value_contents_raw (v
), buf
, size
);
4033 return allocate_value (builtin_type (gdbarch
)->builtin_void
);
4036 #if !defined(HAVE_LIBEXPAT)
4038 struct traceframe_info
*
4039 parse_traceframe_info (const char *tframe_info
)
4041 static int have_warned
;
4046 warning (_("Can not parse XML trace frame info; XML support "
4047 "was disabled at compile time"));
4053 #else /* HAVE_LIBEXPAT */
4055 #include "xml-support.h"
4057 /* Handle the start of a <memory> element. */
4060 traceframe_info_start_memory (struct gdb_xml_parser
*parser
,
4061 const struct gdb_xml_element
*element
,
4062 void *user_data
, VEC(gdb_xml_value_s
) *attributes
)
4064 struct traceframe_info
*info
= (struct traceframe_info
*) user_data
;
4065 struct mem_range
*r
= VEC_safe_push (mem_range_s
, info
->memory
, NULL
);
4066 ULONGEST
*start_p
, *length_p
;
4069 = (ULONGEST
*) xml_find_attribute (attributes
, "start")->value
;
4071 = (ULONGEST
*) xml_find_attribute (attributes
, "length")->value
;
4073 r
->start
= *start_p
;
4074 r
->length
= *length_p
;
4077 /* Handle the start of a <tvar> element. */
4080 traceframe_info_start_tvar (struct gdb_xml_parser
*parser
,
4081 const struct gdb_xml_element
*element
,
4083 VEC(gdb_xml_value_s
) *attributes
)
4085 struct traceframe_info
*info
= (struct traceframe_info
*) user_data
;
4086 const char *id_attrib
4087 = (const char *) xml_find_attribute (attributes
, "id")->value
;
4088 int id
= gdb_xml_parse_ulongest (parser
, id_attrib
);
4090 VEC_safe_push (int, info
->tvars
, id
);
4093 /* Discard the constructed trace frame info (if an error occurs). */
4096 free_result (void *p
)
4098 struct traceframe_info
*result
= (struct traceframe_info
*) p
;
4100 free_traceframe_info (result
);
4103 /* The allowed elements and attributes for an XML memory map. */
4105 static const struct gdb_xml_attribute memory_attributes
[] = {
4106 { "start", GDB_XML_AF_NONE
, gdb_xml_parse_attr_ulongest
, NULL
},
4107 { "length", GDB_XML_AF_NONE
, gdb_xml_parse_attr_ulongest
, NULL
},
4108 { NULL
, GDB_XML_AF_NONE
, NULL
, NULL
}
4111 static const struct gdb_xml_attribute tvar_attributes
[] = {
4112 { "id", GDB_XML_AF_NONE
, NULL
, NULL
},
4113 { NULL
, GDB_XML_AF_NONE
, NULL
, NULL
}
4116 static const struct gdb_xml_element traceframe_info_children
[] = {
4117 { "memory", memory_attributes
, NULL
,
4118 GDB_XML_EF_REPEATABLE
| GDB_XML_EF_OPTIONAL
,
4119 traceframe_info_start_memory
, NULL
},
4120 { "tvar", tvar_attributes
, NULL
,
4121 GDB_XML_EF_REPEATABLE
| GDB_XML_EF_OPTIONAL
,
4122 traceframe_info_start_tvar
, NULL
},
4123 { NULL
, NULL
, NULL
, GDB_XML_EF_NONE
, NULL
, NULL
}
4126 static const struct gdb_xml_element traceframe_info_elements
[] = {
4127 { "traceframe-info", NULL
, traceframe_info_children
, GDB_XML_EF_NONE
,
4129 { NULL
, NULL
, NULL
, GDB_XML_EF_NONE
, NULL
, NULL
}
4132 /* Parse a traceframe-info XML document. */
4134 struct traceframe_info
*
4135 parse_traceframe_info (const char *tframe_info
)
4137 struct traceframe_info
*result
;
4138 struct cleanup
*back_to
;
4140 result
= XCNEW (struct traceframe_info
);
4141 back_to
= make_cleanup (free_result
, result
);
4143 if (gdb_xml_parse_quick (_("trace frame info"),
4144 "traceframe-info.dtd", traceframe_info_elements
,
4145 tframe_info
, result
) == 0)
4147 /* Parsed successfully, keep the result. */
4148 discard_cleanups (back_to
);
4153 do_cleanups (back_to
);
4157 #endif /* HAVE_LIBEXPAT */
4159 /* Returns the traceframe_info object for the current traceframe.
4160 This is where we avoid re-fetching the object from the target if we
4161 already have it cached. */
4163 struct traceframe_info
*
4164 get_traceframe_info (void)
4166 if (traceframe_info
== NULL
)
4167 traceframe_info
= target_traceframe_info ();
4169 return traceframe_info
;
4172 /* If the target supports the query, return in RESULT the set of
4173 collected memory in the current traceframe, found within the LEN
4174 bytes range starting at MEMADDR. Returns true if the target
4175 supports the query, otherwise returns false, and RESULT is left
4179 traceframe_available_memory (VEC(mem_range_s
) **result
,
4180 CORE_ADDR memaddr
, ULONGEST len
)
4182 struct traceframe_info
*info
= get_traceframe_info ();
4186 struct mem_range
*r
;
4191 for (i
= 0; VEC_iterate (mem_range_s
, info
->memory
, i
, r
); i
++)
4192 if (mem_ranges_overlap (r
->start
, r
->length
, memaddr
, len
))
4194 ULONGEST lo1
, hi1
, lo2
, hi2
;
4195 struct mem_range
*nr
;
4198 hi1
= memaddr
+ len
;
4201 hi2
= r
->start
+ r
->length
;
4203 nr
= VEC_safe_push (mem_range_s
, *result
, NULL
);
4205 nr
->start
= std::max (lo1
, lo2
);
4206 nr
->length
= std::min (hi1
, hi2
) - nr
->start
;
4209 normalize_mem_ranges (*result
);
4216 /* Implementation of `sdata' variable. */
4218 static const struct internalvar_funcs sdata_funcs
=
4225 /* module initialization */
4227 _initialize_tracepoint (void)
4229 struct cmd_list_element
*c
;
4231 /* Explicitly create without lookup, since that tries to create a
4232 value with a void typed value, and when we get here, gdbarch
4233 isn't initialized yet. At this point, we're quite sure there
4234 isn't another convenience variable of the same name. */
4235 create_internalvar_type_lazy ("_sdata", &sdata_funcs
, NULL
);
4237 traceframe_number
= -1;
4238 tracepoint_number
= -1;
4240 add_info ("scope", scope_info
,
4241 _("List the variables local to a scope"));
4243 add_cmd ("tracepoints", class_trace
, NULL
,
4244 _("Tracing of program execution without stopping the program."),
4247 add_com ("tdump", class_trace
, tdump_command
,
4248 _("Print everything collected at the current tracepoint."));
4250 c
= add_com ("tvariable", class_trace
, trace_variable_command
,_("\
4251 Define a trace state variable.\n\
4252 Argument is a $-prefixed name, optionally followed\n\
4253 by '=' and an expression that sets the initial value\n\
4254 at the start of tracing."));
4255 set_cmd_completer (c
, expression_completer
);
4257 add_cmd ("tvariable", class_trace
, delete_trace_variable_command
, _("\
4258 Delete one or more trace state variables.\n\
4259 Arguments are the names of the variables to delete.\n\
4260 If no arguments are supplied, delete all variables."), &deletelist
);
4261 /* FIXME add a trace variable completer. */
4263 add_info ("tvariables", tvariables_info
, _("\
4264 Status of trace state variables and their values.\n\
4267 add_info ("static-tracepoint-markers",
4268 info_static_tracepoint_markers_command
, _("\
4269 List target static tracepoints markers.\n\
4272 add_prefix_cmd ("tfind", class_trace
, tfind_command
, _("\
4273 Select a trace frame;\n\
4274 No argument means forward by one frame; '-' means backward by one frame."),
4275 &tfindlist
, "tfind ", 1, &cmdlist
);
4277 add_cmd ("outside", class_trace
, tfind_outside_command
, _("\
4278 Select a trace frame whose PC is outside the given range (exclusive).\n\
4279 Usage: tfind outside addr1, addr2"),
4282 add_cmd ("range", class_trace
, tfind_range_command
, _("\
4283 Select a trace frame whose PC is in the given range (inclusive).\n\
4284 Usage: tfind range addr1,addr2"),
4287 add_cmd ("line", class_trace
, tfind_line_command
, _("\
4288 Select a trace frame by source line.\n\
4289 Argument can be a line number (with optional source file),\n\
4290 a function name, or '*' followed by an address.\n\
4291 Default argument is 'the next source line that was traced'."),
4294 add_cmd ("tracepoint", class_trace
, tfind_tracepoint_command
, _("\
4295 Select a trace frame by tracepoint number.\n\
4296 Default is the tracepoint for the current trace frame."),
4299 add_cmd ("pc", class_trace
, tfind_pc_command
, _("\
4300 Select a trace frame by PC.\n\
4301 Default is the current PC, or the PC of the current trace frame."),
4304 add_cmd ("end", class_trace
, tfind_end_command
, _("\
4305 De-select any trace frame and resume 'live' debugging."),
4308 add_alias_cmd ("none", "end", class_trace
, 0, &tfindlist
);
4310 add_cmd ("start", class_trace
, tfind_start_command
,
4311 _("Select the first trace frame in the trace buffer."),
4314 add_com ("tstatus", class_trace
, tstatus_command
,
4315 _("Display the status of the current trace data collection."));
4317 add_com ("tstop", class_trace
, tstop_command
, _("\
4318 Stop trace data collection.\n\
4319 Usage: tstop [ <notes> ... ]\n\
4320 Any arguments supplied are recorded with the trace as a stop reason and\n\
4321 reported by tstatus (if the target supports trace notes)."));
4323 add_com ("tstart", class_trace
, tstart_command
, _("\
4324 Start trace data collection.\n\
4325 Usage: tstart [ <notes> ... ]\n\
4326 Any arguments supplied are recorded with the trace as a note and\n\
4327 reported by tstatus (if the target supports trace notes)."));
4329 add_com ("end", class_trace
, end_actions_pseudocommand
, _("\
4330 Ends a list of commands or actions.\n\
4331 Several GDB commands allow you to enter a list of commands or actions.\n\
4332 Entering \"end\" on a line by itself is the normal way to terminate\n\
4334 Note: the \"end\" command cannot be used at the gdb prompt."));
4336 add_com ("while-stepping", class_trace
, while_stepping_pseudocommand
, _("\
4337 Specify single-stepping behavior at a tracepoint.\n\
4338 Argument is number of instructions to trace in single-step mode\n\
4339 following the tracepoint. This command is normally followed by\n\
4340 one or more \"collect\" commands, to specify what to collect\n\
4341 while single-stepping.\n\n\
4342 Note: this command can only be used in a tracepoint \"actions\" list."));
4344 add_com_alias ("ws", "while-stepping", class_alias
, 0);
4345 add_com_alias ("stepping", "while-stepping", class_alias
, 0);
4347 add_com ("collect", class_trace
, collect_pseudocommand
, _("\
4348 Specify one or more data items to be collected at a tracepoint.\n\
4349 Accepts a comma-separated list of (one or more) expressions. GDB will\n\
4350 collect all data (variables, registers) referenced by that expression.\n\
4351 Also accepts the following special arguments:\n\
4352 $regs -- all registers.\n\
4353 $args -- all function arguments.\n\
4354 $locals -- all variables local to the block/function scope.\n\
4355 $_sdata -- static tracepoint data (ignored for non-static tracepoints).\n\
4356 Note: this command can only be used in a tracepoint \"actions\" list."));
4358 add_com ("teval", class_trace
, teval_pseudocommand
, _("\
4359 Specify one or more expressions to be evaluated at a tracepoint.\n\
4360 Accepts a comma-separated list of (one or more) expressions.\n\
4361 The result of each evaluation will be discarded.\n\
4362 Note: this command can only be used in a tracepoint \"actions\" list."));
4364 add_com ("actions", class_trace
, actions_command
, _("\
4365 Specify the actions to be taken at a tracepoint.\n\
4366 Tracepoint actions may include collecting of specified data,\n\
4367 single-stepping, or enabling/disabling other tracepoints,\n\
4368 depending on target's capabilities."));
4370 default_collect
= xstrdup ("");
4371 add_setshow_string_cmd ("default-collect", class_trace
,
4372 &default_collect
, _("\
4373 Set the list of expressions to collect by default"), _("\
4374 Show the list of expressions to collect by default"), NULL
,
4376 &setlist
, &showlist
);
4378 add_setshow_boolean_cmd ("disconnected-tracing", no_class
,
4379 &disconnected_tracing
, _("\
4380 Set whether tracing continues after GDB disconnects."), _("\
4381 Show whether tracing continues after GDB disconnects."), _("\
4382 Use this to continue a tracing run even if GDB disconnects\n\
4383 or detaches from the target. You can reconnect later and look at\n\
4384 trace data collected in the meantime."),
4385 set_disconnected_tracing
,
4390 add_setshow_boolean_cmd ("circular-trace-buffer", no_class
,
4391 &circular_trace_buffer
, _("\
4392 Set target's use of circular trace buffer."), _("\
4393 Show target's use of circular trace buffer."), _("\
4394 Use this to make the trace buffer into a circular buffer,\n\
4395 which will discard traceframes (oldest first) instead of filling\n\
4396 up and stopping the trace run."),
4397 set_circular_trace_buffer
,
4402 add_setshow_zuinteger_unlimited_cmd ("trace-buffer-size", no_class
,
4403 &trace_buffer_size
, _("\
4404 Set requested size of trace buffer."), _("\
4405 Show requested size of trace buffer."), _("\
4406 Use this to choose a size for the trace buffer. Some targets\n\
4407 may have fixed or limited buffer sizes. Specifying \"unlimited\" or -1\n\
4408 disables any attempt to set the buffer size and lets the target choose."),
4409 set_trace_buffer_size
, NULL
,
4410 &setlist
, &showlist
);
4412 add_setshow_string_cmd ("trace-user", class_trace
,
4414 Set the user name to use for current and future trace runs"), _("\
4415 Show the user name to use for current and future trace runs"), NULL
,
4416 set_trace_user
, NULL
,
4417 &setlist
, &showlist
);
4419 add_setshow_string_cmd ("trace-notes", class_trace
,
4421 Set notes string to use for current and future trace runs"), _("\
4422 Show the notes string to use for current and future trace runs"), NULL
,
4423 set_trace_notes
, NULL
,
4424 &setlist
, &showlist
);
4426 add_setshow_string_cmd ("trace-stop-notes", class_trace
,
4427 &trace_stop_notes
, _("\
4428 Set notes string to use for future tstop commands"), _("\
4429 Show the notes string to use for future tstop commands"), NULL
,
4430 set_trace_stop_notes
, NULL
,
4431 &setlist
, &showlist
);