1 /* Tracing functionality for remote targets in custom GDB protocol
3 Copyright (C) 1997-2012 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"
30 #include "gdb_string.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"
53 #include "exceptions.h"
54 #include "cli/cli-utils.h"
57 /* readline include files */
58 #include "readline/readline.h"
59 #include "readline/history.h"
61 /* readline defines this. */
72 extern int hex2bin (const char *hex, gdb_byte *bin, int count);
73 extern int bin2hex (const gdb_byte *bin, char *hex, int count);
75 /* Maximum length of an agent aexpression.
76 This accounts for the fact that packets are limited to 400 bytes
77 (which includes everything -- including the checksum), and assumes
78 the worst case of maximum length for each of the pieces of a
81 NOTE: expressions get mem2hex'ed otherwise this would be twice as
82 large. (400 - 31)/2 == 184 */
83 #define MAX_AGENT_EXPR_LEN 184
87 /* A hook used to notify the UI of tracepoint operations. */
89 void (*deprecated_trace_find_hook) (char *arg, int from_tty);
90 void (*deprecated_trace_start_stop_hook) (int start, int from_tty);
92 extern void (*deprecated_readline_begin_hook) (char *, ...);
93 extern char *(*deprecated_readline_hook) (char *);
94 extern void (*deprecated_readline_end_hook) (void);
96 /* GDB commands implemented in other modules:
99 extern void output_command (char *, int);
104 This module defines the following debugger commands:
105 trace : set a tracepoint on a function, line, or address.
106 info trace : list all debugger-defined tracepoints.
107 delete trace : delete one or more tracepoints.
108 enable trace : enable one or more tracepoints.
109 disable trace : disable one or more tracepoints.
110 actions : specify actions to be taken at a tracepoint.
111 passcount : specify a pass count for a tracepoint.
112 tstart : start a trace experiment.
113 tstop : stop a trace experiment.
114 tstatus : query the status of a trace experiment.
115 tfind : find a trace frame in the trace buffer.
116 tdump : print everything collected at the current tracepoint.
117 save-tracepoints : write tracepoint setup into a file.
119 This module defines the following user-visible debugger variables:
120 $trace_frame : sequence number of trace frame currently being debugged.
121 $trace_line : source line of trace frame currently being debugged.
122 $trace_file : source file of trace frame currently being debugged.
123 $tracepoint : tracepoint number of trace frame currently being debugged.
127 /* ======= Important global variables: ======= */
129 /* The list of all trace state variables. We don't retain pointers to
130 any of these for any reason - API is by name or number only - so it
131 works to have a vector of objects. */
133 typedef struct trace_state_variable tsv_s;
136 /* An object describing the contents of a traceframe. */
138 struct traceframe_info
140 /* Collected memory. */
141 VEC(mem_range_s) *memory;
144 static VEC(tsv_s) *tvariables;
146 /* The next integer to assign to a variable. */
148 static int next_tsv_number = 1;
150 /* Number of last traceframe collected. */
151 static int traceframe_number;
153 /* Tracepoint for last traceframe collected. */
154 static int tracepoint_number;
156 /* Symbol for function for last traceframe collected. */
157 static struct symbol *traceframe_fun;
159 /* Symtab and line for last traceframe collected. */
160 static struct symtab_and_line traceframe_sal;
162 /* The traceframe info of the current traceframe. NULL if we haven't
163 yet attempted to fetch it, or if the target does not support
164 fetching this object, or if we're not inspecting a traceframe
166 static struct traceframe_info *traceframe_info;
168 /* Tracing command lists. */
169 static struct cmd_list_element *tfindlist;
171 /* List of expressions to collect by default at each tracepoint hit. */
172 char *default_collect = "";
174 static int disconnected_tracing;
176 /* This variable controls whether we ask the target for a linear or
177 circular trace buffer. */
179 static int circular_trace_buffer;
181 /* Textual notes applying to the current and/or future trace runs. */
183 char *trace_user = NULL;
185 /* Textual notes applying to the current and/or future trace runs. */
187 char *trace_notes = NULL;
189 /* Textual notes applying to the stopping of a trace. */
191 char *trace_stop_notes = NULL;
193 /* ======= Important command functions: ======= */
194 static void trace_actions_command (char *, int);
195 static void trace_start_command (char *, int);
196 static void trace_stop_command (char *, int);
197 static void trace_status_command (char *, int);
198 static void trace_find_command (char *, int);
199 static void trace_find_pc_command (char *, int);
200 static void trace_find_tracepoint_command (char *, int);
201 static void trace_find_line_command (char *, int);
202 static void trace_find_range_command (char *, int);
203 static void trace_find_outside_command (char *, int);
204 static void trace_dump_command (char *, int);
206 /* support routines */
208 struct collection_list;
209 static void add_aexpr (struct collection_list *, struct agent_expr *);
210 static char *mem2hex (gdb_byte *, char *, int);
211 static void add_register (struct collection_list *collection,
214 static void free_uploaded_tps (struct uploaded_tp **utpp);
215 static void free_uploaded_tsvs (struct uploaded_tsv **utsvp);
218 extern void _initialize_tracepoint (void);
220 static struct trace_status trace_status;
222 char *stop_reason_names[] = {
232 struct trace_status *
233 current_trace_status (void)
235 return &trace_status;
241 free_traceframe_info (struct traceframe_info *info)
245 VEC_free (mem_range_s, info->memory);
251 /* Free and clear the traceframe info cache of the current
255 clear_traceframe_info (void)
257 free_traceframe_info (traceframe_info);
258 traceframe_info = NULL;
261 /* Set traceframe number to NUM. */
263 set_traceframe_num (int num)
265 traceframe_number = num;
266 set_internalvar_integer (lookup_internalvar ("trace_frame"), num);
269 /* Set tracepoint number to NUM. */
271 set_tracepoint_num (int num)
273 tracepoint_number = num;
274 set_internalvar_integer (lookup_internalvar ("tracepoint"), num);
277 /* Set externally visible debug variables for querying/printing
278 the traceframe context (line, function, file). */
281 set_traceframe_context (struct frame_info *trace_frame)
285 /* Save as globals for internal use. */
286 if (trace_frame != NULL
287 && get_frame_pc_if_available (trace_frame, &trace_pc))
289 traceframe_sal = find_pc_line (trace_pc, 0);
290 traceframe_fun = find_pc_function (trace_pc);
292 /* Save linenumber as "$trace_line", a debugger variable visible to
294 set_internalvar_integer (lookup_internalvar ("trace_line"),
295 traceframe_sal.line);
299 init_sal (&traceframe_sal);
300 traceframe_fun = NULL;
301 set_internalvar_integer (lookup_internalvar ("trace_line"), -1);
304 /* Save func name as "$trace_func", a debugger variable visible to
306 if (traceframe_fun == NULL
307 || SYMBOL_LINKAGE_NAME (traceframe_fun) == NULL)
308 clear_internalvar (lookup_internalvar ("trace_func"));
310 set_internalvar_string (lookup_internalvar ("trace_func"),
311 SYMBOL_LINKAGE_NAME (traceframe_fun));
313 /* Save file name as "$trace_file", a debugger variable visible to
315 if (traceframe_sal.symtab == NULL
316 || traceframe_sal.symtab->filename == NULL)
317 clear_internalvar (lookup_internalvar ("trace_file"));
319 set_internalvar_string (lookup_internalvar ("trace_file"),
320 traceframe_sal.symtab->filename);
323 /* Create a new trace state variable with the given name. */
325 struct trace_state_variable *
326 create_trace_state_variable (const char *name)
328 struct trace_state_variable tsv;
330 memset (&tsv, 0, sizeof (tsv));
331 tsv.name = xstrdup (name);
332 tsv.number = next_tsv_number++;
333 return VEC_safe_push (tsv_s, tvariables, &tsv);
336 /* Look for a trace state variable of the given name. */
338 struct trace_state_variable *
339 find_trace_state_variable (const char *name)
341 struct trace_state_variable *tsv;
344 for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix)
345 if (strcmp (name, tsv->name) == 0)
352 delete_trace_state_variable (const char *name)
354 struct trace_state_variable *tsv;
357 for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix)
358 if (strcmp (name, tsv->name) == 0)
360 xfree ((void *)tsv->name);
361 VEC_unordered_remove (tsv_s, tvariables, ix);
365 warning (_("No trace variable named \"$%s\", not deleting"), name);
368 /* The 'tvariable' command collects a name and optional expression to
369 evaluate into an initial value. */
372 trace_variable_command (char *args, int from_tty)
374 struct expression *expr;
375 struct cleanup *old_chain;
376 struct internalvar *intvar = NULL;
378 struct trace_state_variable *tsv;
381 error_no_arg (_("trace state variable name"));
383 /* All the possible valid arguments are expressions. */
384 expr = parse_expression (args);
385 old_chain = make_cleanup (free_current_contents, &expr);
387 if (expr->nelts == 0)
388 error (_("No expression?"));
390 /* Only allow two syntaxes; "$name" and "$name=value". */
391 if (expr->elts[0].opcode == OP_INTERNALVAR)
393 intvar = expr->elts[1].internalvar;
395 else if (expr->elts[0].opcode == BINOP_ASSIGN
396 && expr->elts[1].opcode == OP_INTERNALVAR)
398 intvar = expr->elts[2].internalvar;
399 initval = value_as_long (evaluate_subexpression_type (expr, 4));
402 error (_("Syntax must be $NAME [ = EXPR ]"));
405 error (_("No name given"));
407 if (strlen (internalvar_name (intvar)) <= 0)
408 error (_("Must supply a non-empty variable name"));
410 /* If the variable already exists, just change its initial value. */
411 tsv = find_trace_state_variable (internalvar_name (intvar));
414 tsv->initial_value = initval;
415 printf_filtered (_("Trace state variable $%s "
416 "now has initial value %s.\n"),
417 tsv->name, plongest (tsv->initial_value));
418 do_cleanups (old_chain);
422 /* Create a new variable. */
423 tsv = create_trace_state_variable (internalvar_name (intvar));
424 tsv->initial_value = initval;
426 printf_filtered (_("Trace state variable $%s "
427 "created, with initial value %s.\n"),
428 tsv->name, plongest (tsv->initial_value));
430 do_cleanups (old_chain);
434 delete_trace_variable_command (char *args, int from_tty)
438 struct cleanup *back_to;
442 if (query (_("Delete all trace state variables? ")))
443 VEC_free (tsv_s, tvariables);
448 argv = gdb_buildargv (args);
449 back_to = make_cleanup_freeargv (argv);
451 for (ix = 0; argv[ix] != NULL; ix++)
453 if (*argv[ix] == '$')
454 delete_trace_state_variable (argv[ix] + 1);
456 warning (_("Name \"%s\" not prefixed with '$', ignoring"), argv[ix]);
459 do_cleanups (back_to);
465 tvariables_info_1 (void)
467 struct trace_state_variable *tsv;
470 struct cleanup *back_to;
471 struct ui_out *uiout = current_uiout;
473 if (VEC_length (tsv_s, tvariables) == 0 && !ui_out_is_mi_like_p (uiout))
475 printf_filtered (_("No trace state variables.\n"));
479 /* Try to acquire values from the target. */
480 for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix, ++count)
481 tsv->value_known = target_get_trace_state_variable_value (tsv->number,
484 back_to = make_cleanup_ui_out_table_begin_end (uiout, 3,
485 count, "trace-variables");
486 ui_out_table_header (uiout, 15, ui_left, "name", "Name");
487 ui_out_table_header (uiout, 11, ui_left, "initial", "Initial");
488 ui_out_table_header (uiout, 11, ui_left, "current", "Current");
490 ui_out_table_body (uiout);
492 for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix)
494 struct cleanup *back_to2;
498 back_to2 = make_cleanup_ui_out_tuple_begin_end (uiout, "variable");
500 name = concat ("$", tsv->name, (char *) NULL);
501 make_cleanup (xfree, name);
502 ui_out_field_string (uiout, "name", name);
503 ui_out_field_string (uiout, "initial", plongest (tsv->initial_value));
505 if (tsv->value_known)
506 c = plongest (tsv->value);
507 else if (ui_out_is_mi_like_p (uiout))
508 /* For MI, we prefer not to use magic string constants, but rather
509 omit the field completely. The difference between unknown and
510 undefined does not seem important enough to represent. */
512 else if (current_trace_status ()->running || traceframe_number >= 0)
513 /* The value is/was defined, but we don't have it. */
516 /* It is not meaningful to ask about the value. */
519 ui_out_field_string (uiout, "current", c);
520 ui_out_text (uiout, "\n");
522 do_cleanups (back_to2);
525 do_cleanups (back_to);
528 /* List all the trace state variables. */
531 tvariables_info (char *args, int from_tty)
533 tvariables_info_1 ();
536 /* Stash definitions of tsvs into the given file. */
539 save_trace_state_variables (struct ui_file *fp)
541 struct trace_state_variable *tsv;
544 for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix)
546 fprintf_unfiltered (fp, "tvariable $%s", tsv->name);
547 if (tsv->initial_value)
548 fprintf_unfiltered (fp, " = %s", plongest (tsv->initial_value));
549 fprintf_unfiltered (fp, "\n");
553 /* ACTIONS functions: */
555 /* The three functions:
556 collect_pseudocommand,
557 while_stepping_pseudocommand, and
558 end_actions_pseudocommand
559 are placeholders for "commands" that are actually ONLY to be used
560 within a tracepoint action list. If the actual function is ever called,
561 it means that somebody issued the "command" at the top level,
562 which is always an error. */
565 end_actions_pseudocommand (char *args, int from_tty)
567 error (_("This command cannot be used at the top level."));
571 while_stepping_pseudocommand (char *args, int from_tty)
573 error (_("This command can only be used in a tracepoint actions list."));
577 collect_pseudocommand (char *args, int from_tty)
579 error (_("This command can only be used in a tracepoint actions list."));
583 teval_pseudocommand (char *args, int from_tty)
585 error (_("This command can only be used in a tracepoint actions list."));
588 /* Parse any collection options, such as /s for strings. */
591 decode_agent_options (char *exp)
593 struct value_print_options opts;
598 /* Call this to borrow the print elements default for collection
600 get_user_print_options (&opts);
605 if (target_supports_string_tracing ())
607 /* Allow an optional decimal number giving an explicit maximum
608 string length, defaulting it to the "print elements" value;
609 so "collect/s80 mystr" gets at most 80 bytes of string. */
610 trace_string_kludge = opts.print_max;
612 if (*exp >= '0' && *exp <= '9')
613 trace_string_kludge = atoi (exp);
614 while (*exp >= '0' && *exp <= '9')
618 error (_("Target does not support \"/s\" option for string tracing."));
621 error (_("Undefined collection format \"%c\"."), *exp);
623 exp = skip_spaces (exp);
628 /* Enter a list of actions for a tracepoint. */
630 trace_actions_command (char *args, int from_tty)
632 struct tracepoint *t;
633 struct command_line *l;
635 t = get_tracepoint_by_number (&args, NULL, 1);
639 xstrprintf ("Enter actions for tracepoint %d, one per line.",
641 struct cleanup *cleanups = make_cleanup (xfree, tmpbuf);
643 l = read_command_lines (tmpbuf, from_tty, 1,
644 check_tracepoint_command, t);
645 do_cleanups (cleanups);
646 breakpoint_set_commands (&t->base, l);
648 /* else just return */
651 /* Report the results of checking the agent expression, as errors or
655 report_agent_reqs_errors (struct agent_expr *aexpr)
657 /* All of the "flaws" are serious bytecode generation issues that
658 should never occur. */
659 if (aexpr->flaw != agent_flaw_none)
660 internal_error (__FILE__, __LINE__, _("expression is malformed"));
662 /* If analysis shows a stack underflow, GDB must have done something
663 badly wrong in its bytecode generation. */
664 if (aexpr->min_height < 0)
665 internal_error (__FILE__, __LINE__,
666 _("expression has min height < 0"));
668 /* Issue this error if the stack is predicted to get too deep. The
669 limit is rather arbitrary; a better scheme might be for the
670 target to report how much stack it will have available. The
671 depth roughly corresponds to parenthesization, so a limit of 20
672 amounts to 20 levels of expression nesting, which is actually
673 a pretty big hairy expression. */
674 if (aexpr->max_height > 20)
675 error (_("Expression is too complicated."));
678 /* worker function */
680 validate_actionline (char **line, struct breakpoint *b)
682 struct cmd_list_element *c;
683 struct expression *exp = NULL;
684 struct cleanup *old_chain = NULL;
686 struct bp_location *loc;
687 struct agent_expr *aexpr;
688 struct tracepoint *t = (struct tracepoint *) b;
690 /* If EOF is typed, *line is NULL. */
694 for (p = *line; isspace ((int) *p);)
697 /* Symbol lookup etc. */
698 if (*p == '\0') /* empty line: just prompt for another line. */
701 if (*p == '#') /* comment line */
704 c = lookup_cmd (&p, cmdlist, "", -1, 1);
706 error (_("`%s' is not a tracepoint action, or is ambiguous."), p);
708 if (cmd_cfunc_eq (c, collect_pseudocommand))
710 trace_string_kludge = 0;
712 p = decode_agent_options (p);
715 { /* Repeat over a comma-separated list. */
716 QUIT; /* Allow user to bail out with ^C. */
717 while (isspace ((int) *p))
720 if (*p == '$') /* Look for special pseudo-symbols. */
722 if (0 == strncasecmp ("reg", p + 1, 3)
723 || 0 == strncasecmp ("arg", p + 1, 3)
724 || 0 == strncasecmp ("loc", p + 1, 3)
725 || 0 == strncasecmp ("_ret", p + 1, 4)
726 || 0 == strncasecmp ("_sdata", p + 1, 6))
731 /* else fall thru, treat p as an expression and parse it! */
734 for (loc = t->base.loc; loc; loc = loc->next)
737 exp = parse_exp_1 (&p, block_for_pc (loc->address), 1);
738 old_chain = make_cleanup (free_current_contents, &exp);
740 if (exp->elts[0].opcode == OP_VAR_VALUE)
742 if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST)
744 error (_("constant `%s' (value %s) "
745 "will not be collected."),
746 SYMBOL_PRINT_NAME (exp->elts[2].symbol),
747 plongest (SYMBOL_VALUE (exp->elts[2].symbol)));
749 else if (SYMBOL_CLASS (exp->elts[2].symbol)
750 == LOC_OPTIMIZED_OUT)
752 error (_("`%s' is optimized away "
753 "and cannot be collected."),
754 SYMBOL_PRINT_NAME (exp->elts[2].symbol));
758 /* We have something to collect, make sure that the expr to
759 bytecode translator can handle it and that it's not too
761 aexpr = gen_trace_for_expr (loc->address, exp);
762 make_cleanup_free_agent_expr (aexpr);
764 if (aexpr->len > MAX_AGENT_EXPR_LEN)
765 error (_("Expression is too complicated."));
769 report_agent_reqs_errors (aexpr);
771 do_cleanups (old_chain);
774 while (p && *p++ == ',');
777 else if (cmd_cfunc_eq (c, teval_pseudocommand))
780 { /* Repeat over a comma-separated list. */
781 QUIT; /* Allow user to bail out with ^C. */
782 while (isspace ((int) *p))
786 for (loc = t->base.loc; loc; loc = loc->next)
789 /* Only expressions are allowed for this action. */
790 exp = parse_exp_1 (&p, block_for_pc (loc->address), 1);
791 old_chain = make_cleanup (free_current_contents, &exp);
793 /* We have something to evaluate, make sure that the expr to
794 bytecode translator can handle it and that it's not too
796 aexpr = gen_eval_for_expr (loc->address, exp);
797 make_cleanup_free_agent_expr (aexpr);
799 if (aexpr->len > MAX_AGENT_EXPR_LEN)
800 error (_("Expression is too complicated."));
803 report_agent_reqs_errors (aexpr);
805 do_cleanups (old_chain);
808 while (p && *p++ == ',');
811 else if (cmd_cfunc_eq (c, while_stepping_pseudocommand))
813 char *steparg; /* In case warning is necessary. */
815 while (isspace ((int) *p))
819 if (*p == '\0' || (t->step_count = strtol (p, &p, 0)) == 0)
820 error (_("while-stepping step count `%s' is malformed."), *line);
823 else if (cmd_cfunc_eq (c, end_actions_pseudocommand))
827 error (_("`%s' is not a supported tracepoint action."), *line);
831 memrange_absolute = -1
836 int type; /* memrange_absolute for absolute memory range,
837 else basereg number. */
838 bfd_signed_vma start;
842 struct collection_list
844 unsigned char regs_mask[32]; /* room for up to 256 regs */
847 struct memrange *list;
848 long aexpr_listsize; /* size of array pointed to by expr_list elt */
850 struct agent_expr **aexpr_list;
852 /* True is the user requested a collection of "$_sdata", "static
856 tracepoint_list, stepping_list;
858 /* MEMRANGE functions: */
860 static int memrange_cmp (const void *, const void *);
862 /* Compare memranges for qsort. */
864 memrange_cmp (const void *va, const void *vb)
866 const struct memrange *a = va, *b = vb;
868 if (a->type < b->type)
870 if (a->type > b->type)
872 if (a->type == memrange_absolute)
874 if ((bfd_vma) a->start < (bfd_vma) b->start)
876 if ((bfd_vma) a->start > (bfd_vma) b->start)
881 if (a->start < b->start)
883 if (a->start > b->start)
889 /* Sort the memrange list using qsort, and merge adjacent memranges. */
891 memrange_sortmerge (struct collection_list *memranges)
895 qsort (memranges->list, memranges->next_memrange,
896 sizeof (struct memrange), memrange_cmp);
897 if (memranges->next_memrange > 0)
899 for (a = 0, b = 1; b < memranges->next_memrange; b++)
901 /* If memrange b overlaps or is adjacent to memrange a,
903 if (memranges->list[a].type == memranges->list[b].type
904 && memranges->list[b].start <= memranges->list[a].end)
906 if (memranges->list[b].end > memranges->list[a].end)
907 memranges->list[a].end = memranges->list[b].end;
908 continue; /* next b, same a */
912 memcpy (&memranges->list[a], &memranges->list[b],
913 sizeof (struct memrange));
915 memranges->next_memrange = a + 1;
919 /* Add a register to a collection list. */
921 add_register (struct collection_list *collection, unsigned int regno)
924 printf_filtered ("collect register %d\n", regno);
925 if (regno >= (8 * sizeof (collection->regs_mask)))
926 error (_("Internal: register number %d too large for tracepoint"),
928 collection->regs_mask[regno / 8] |= 1 << (regno % 8);
931 /* Add a memrange to a collection list. */
933 add_memrange (struct collection_list *memranges,
934 int type, bfd_signed_vma base,
939 printf_filtered ("(%d,", type);
941 printf_filtered (",%ld)\n", len);
944 /* type: memrange_absolute == memory, other n == basereg */
945 memranges->list[memranges->next_memrange].type = type;
946 /* base: addr if memory, offset if reg relative. */
947 memranges->list[memranges->next_memrange].start = base;
948 /* len: we actually save end (base + len) for convenience */
949 memranges->list[memranges->next_memrange].end = base + len;
950 memranges->next_memrange++;
951 if (memranges->next_memrange >= memranges->listsize)
953 memranges->listsize *= 2;
954 memranges->list = xrealloc (memranges->list,
955 memranges->listsize);
958 if (type != memrange_absolute) /* Better collect the base register! */
959 add_register (memranges, type);
962 /* Add a symbol to a collection list. */
964 collect_symbol (struct collection_list *collect,
966 struct gdbarch *gdbarch,
967 long frame_regno, long frame_offset,
972 bfd_signed_vma offset;
973 int treat_as_expr = 0;
975 len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)));
976 switch (SYMBOL_CLASS (sym))
979 printf_filtered ("%s: don't know symbol class %d\n",
980 SYMBOL_PRINT_NAME (sym),
984 printf_filtered ("constant %s (value %s) will not be collected.\n",
985 SYMBOL_PRINT_NAME (sym), plongest (SYMBOL_VALUE (sym)));
988 offset = SYMBOL_VALUE_ADDRESS (sym);
993 sprintf_vma (tmp, offset);
994 printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n",
995 SYMBOL_PRINT_NAME (sym), len,
998 /* A struct may be a C++ class with static fields, go to general
999 expression handling. */
1000 if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_STRUCT)
1003 add_memrange (collect, memrange_absolute, offset, len);
1006 reg = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch);
1008 printf_filtered ("LOC_REG[parm] %s: ",
1009 SYMBOL_PRINT_NAME (sym));
1010 add_register (collect, reg);
1011 /* Check for doubles stored in two registers. */
1012 /* FIXME: how about larger types stored in 3 or more regs? */
1013 if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FLT &&
1014 len > register_size (gdbarch, reg))
1015 add_register (collect, reg + 1);
1018 printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n");
1019 printf_filtered (" (will not collect %s)\n",
1020 SYMBOL_PRINT_NAME (sym));
1024 offset = frame_offset + SYMBOL_VALUE (sym);
1027 printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ",
1028 SYMBOL_PRINT_NAME (sym), len);
1029 printf_vma (offset);
1030 printf_filtered (" from frame ptr reg %d\n", reg);
1032 add_memrange (collect, reg, offset, len);
1034 case LOC_REGPARM_ADDR:
1035 reg = SYMBOL_VALUE (sym);
1039 printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset ",
1040 SYMBOL_PRINT_NAME (sym), len);
1041 printf_vma (offset);
1042 printf_filtered (" from reg %d\n", reg);
1044 add_memrange (collect, reg, offset, len);
1048 offset = frame_offset + SYMBOL_VALUE (sym);
1051 printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ",
1052 SYMBOL_PRINT_NAME (sym), len);
1053 printf_vma (offset);
1054 printf_filtered (" from frame ptr reg %d\n", reg);
1056 add_memrange (collect, reg, offset, len);
1059 case LOC_UNRESOLVED:
1063 case LOC_OPTIMIZED_OUT:
1064 printf_filtered ("%s has been optimized out of existence.\n",
1065 SYMBOL_PRINT_NAME (sym));
1073 /* Expressions are the most general case. */
1076 struct agent_expr *aexpr;
1077 struct cleanup *old_chain1 = NULL;
1079 aexpr = gen_trace_for_var (scope, gdbarch, sym);
1081 /* It can happen that the symbol is recorded as a computed
1082 location, but it's been optimized away and doesn't actually
1083 have a location expression. */
1086 printf_filtered ("%s has been optimized out of existence.\n",
1087 SYMBOL_PRINT_NAME (sym));
1091 old_chain1 = make_cleanup_free_agent_expr (aexpr);
1095 report_agent_reqs_errors (aexpr);
1097 discard_cleanups (old_chain1);
1098 add_aexpr (collect, aexpr);
1100 /* Take care of the registers. */
1101 if (aexpr->reg_mask_len > 0)
1105 for (ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++)
1107 QUIT; /* Allow user to bail out with ^C. */
1108 if (aexpr->reg_mask[ndx1] != 0)
1110 /* Assume chars have 8 bits. */
1111 for (ndx2 = 0; ndx2 < 8; ndx2++)
1112 if (aexpr->reg_mask[ndx1] & (1 << ndx2))
1113 /* It's used -- record it. */
1114 add_register (collect, ndx1 * 8 + ndx2);
1121 /* Data to be passed around in the calls to the locals and args
1124 struct add_local_symbols_data
1126 struct collection_list *collect;
1127 struct gdbarch *gdbarch;
1134 /* The callback for the locals and args iterators. */
1137 do_collect_symbol (const char *print_name,
1141 struct add_local_symbols_data *p = cb_data;
1143 collect_symbol (p->collect, sym, p->gdbarch, p->frame_regno,
1144 p->frame_offset, p->pc);
1148 /* Add all locals (or args) symbols to collection list. */
1150 add_local_symbols (struct collection_list *collect,
1151 struct gdbarch *gdbarch, CORE_ADDR pc,
1152 long frame_regno, long frame_offset, int type)
1154 struct block *block;
1155 struct add_local_symbols_data cb_data;
1157 cb_data.collect = collect;
1158 cb_data.gdbarch = gdbarch;
1160 cb_data.frame_regno = frame_regno;
1161 cb_data.frame_offset = frame_offset;
1166 block = block_for_pc (pc);
1169 warning (_("Can't collect locals; "
1170 "no symbol table info available.\n"));
1174 iterate_over_block_local_vars (block, do_collect_symbol, &cb_data);
1175 if (cb_data.count == 0)
1176 warning (_("No locals found in scope."));
1180 pc = get_pc_function_start (pc);
1181 block = block_for_pc (pc);
1184 warning (_("Can't collect args; no symbol table info available."));
1188 iterate_over_block_arg_vars (block, do_collect_symbol, &cb_data);
1189 if (cb_data.count == 0)
1190 warning (_("No args found in scope."));
1195 add_static_trace_data (struct collection_list *collection)
1198 printf_filtered ("collect static trace data\n");
1199 collection->strace_data = 1;
1202 /* worker function */
1204 clear_collection_list (struct collection_list *list)
1208 list->next_memrange = 0;
1209 for (ndx = 0; ndx < list->next_aexpr_elt; ndx++)
1211 free_agent_expr (list->aexpr_list[ndx]);
1212 list->aexpr_list[ndx] = NULL;
1214 list->next_aexpr_elt = 0;
1215 memset (list->regs_mask, 0, sizeof (list->regs_mask));
1216 list->strace_data = 0;
1219 /* Reduce a collection list to string form (for gdb protocol). */
1221 stringify_collection_list (struct collection_list *list, char *string)
1223 char temp_buf[2048];
1227 char *(*str_list)[];
1231 count = 1 + 1 + list->next_memrange + list->next_aexpr_elt + 1;
1232 str_list = (char *(*)[]) xmalloc (count * sizeof (char *));
1234 if (list->strace_data)
1237 printf_filtered ("\nCollecting static trace data\n");
1240 (*str_list)[ndx] = savestring (temp_buf, end - temp_buf);
1244 for (i = sizeof (list->regs_mask) - 1; i > 0; i--)
1245 if (list->regs_mask[i] != 0) /* Skip leading zeroes in regs_mask. */
1247 if (list->regs_mask[i] != 0) /* Prepare to send regs_mask to the stub. */
1250 printf_filtered ("\nCollecting registers (mask): 0x");
1255 QUIT; /* Allow user to bail out with ^C. */
1257 printf_filtered ("%02X", list->regs_mask[i]);
1258 sprintf (end, "%02X", list->regs_mask[i]);
1261 (*str_list)[ndx] = xstrdup (temp_buf);
1265 printf_filtered ("\n");
1266 if (list->next_memrange > 0 && info_verbose)
1267 printf_filtered ("Collecting memranges: \n");
1268 for (i = 0, count = 0, end = temp_buf; i < list->next_memrange; i++)
1270 QUIT; /* Allow user to bail out with ^C. */
1271 sprintf_vma (tmp2, list->list[i].start);
1274 printf_filtered ("(%d, %s, %ld)\n",
1277 (long) (list->list[i].end - list->list[i].start));
1279 if (count + 27 > MAX_AGENT_EXPR_LEN)
1281 (*str_list)[ndx] = savestring (temp_buf, count);
1288 bfd_signed_vma length = list->list[i].end - list->list[i].start;
1290 /* The "%X" conversion specifier expects an unsigned argument,
1291 so passing -1 (memrange_absolute) to it directly gives you
1292 "FFFFFFFF" (or more, depending on sizeof (unsigned)).
1294 if (list->list[i].type == memrange_absolute)
1295 sprintf (end, "M-1,%s,%lX", tmp2, (long) length);
1297 sprintf (end, "M%X,%s,%lX", list->list[i].type, tmp2, (long) length);
1300 count += strlen (end);
1301 end = temp_buf + count;
1304 for (i = 0; i < list->next_aexpr_elt; i++)
1306 QUIT; /* Allow user to bail out with ^C. */
1307 if ((count + 10 + 2 * list->aexpr_list[i]->len) > MAX_AGENT_EXPR_LEN)
1309 (*str_list)[ndx] = savestring (temp_buf, count);
1314 sprintf (end, "X%08X,", list->aexpr_list[i]->len);
1315 end += 10; /* 'X' + 8 hex digits + ',' */
1318 end = mem2hex (list->aexpr_list[i]->buf,
1319 end, list->aexpr_list[i]->len);
1320 count += 2 * list->aexpr_list[i]->len;
1325 (*str_list)[ndx] = savestring (temp_buf, count);
1330 (*str_list)[ndx] = NULL;
1343 encode_actions_1 (struct command_line *action,
1344 struct breakpoint *t,
1345 struct bp_location *tloc,
1347 LONGEST frame_offset,
1348 struct collection_list *collect,
1349 struct collection_list *stepping_list)
1352 struct expression *exp = NULL;
1354 struct value *tempval;
1355 struct cmd_list_element *cmd;
1356 struct agent_expr *aexpr;
1358 for (; action; action = action->next)
1360 QUIT; /* Allow user to bail out with ^C. */
1361 action_exp = action->line;
1362 while (isspace ((int) *action_exp))
1365 cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1);
1367 error (_("Bad action list item: %s"), action_exp);
1369 if (cmd_cfunc_eq (cmd, collect_pseudocommand))
1371 trace_string_kludge = 0;
1372 if (*action_exp == '/')
1373 action_exp = decode_agent_options (action_exp);
1376 { /* Repeat over a comma-separated list. */
1377 QUIT; /* Allow user to bail out with ^C. */
1378 while (isspace ((int) *action_exp))
1381 if (0 == strncasecmp ("$reg", action_exp, 4))
1383 for (i = 0; i < gdbarch_num_regs (tloc->gdbarch); i++)
1384 add_register (collect, i);
1385 action_exp = strchr (action_exp, ','); /* more? */
1387 else if (0 == strncasecmp ("$arg", action_exp, 4))
1389 add_local_symbols (collect,
1395 action_exp = strchr (action_exp, ','); /* more? */
1397 else if (0 == strncasecmp ("$loc", action_exp, 4))
1399 add_local_symbols (collect,
1405 action_exp = strchr (action_exp, ','); /* more? */
1407 else if (0 == strncasecmp ("$_ret", action_exp, 5))
1409 struct cleanup *old_chain1 = NULL;
1411 aexpr = gen_trace_for_return_address (tloc->address,
1414 old_chain1 = make_cleanup_free_agent_expr (aexpr);
1417 report_agent_reqs_errors (aexpr);
1419 discard_cleanups (old_chain1);
1420 add_aexpr (collect, aexpr);
1422 /* take care of the registers */
1423 if (aexpr->reg_mask_len > 0)
1427 for (ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++)
1429 QUIT; /* allow user to bail out with ^C */
1430 if (aexpr->reg_mask[ndx1] != 0)
1432 /* assume chars have 8 bits */
1433 for (ndx2 = 0; ndx2 < 8; ndx2++)
1434 if (aexpr->reg_mask[ndx1] & (1 << ndx2))
1435 /* it's used -- record it */
1436 add_register (collect,
1442 action_exp = strchr (action_exp, ','); /* more? */
1444 else if (0 == strncasecmp ("$_sdata", action_exp, 7))
1446 add_static_trace_data (collect);
1447 action_exp = strchr (action_exp, ','); /* more? */
1451 unsigned long addr, len;
1452 struct cleanup *old_chain = NULL;
1453 struct cleanup *old_chain1 = NULL;
1455 exp = parse_exp_1 (&action_exp,
1456 block_for_pc (tloc->address), 1);
1457 old_chain = make_cleanup (free_current_contents, &exp);
1459 switch (exp->elts[0].opcode)
1463 const char *name = &exp->elts[2].string;
1465 i = user_reg_map_name_to_regnum (tloc->gdbarch,
1466 name, strlen (name));
1468 internal_error (__FILE__, __LINE__,
1469 _("Register $%s not available"),
1472 printf_filtered ("OP_REGISTER: ");
1473 add_register (collect, i);
1478 /* Safe because we know it's a simple expression. */
1479 tempval = evaluate_expression (exp);
1480 addr = value_address (tempval);
1481 len = TYPE_LENGTH (check_typedef (exp->elts[1].type));
1482 add_memrange (collect, memrange_absolute, addr, len);
1486 collect_symbol (collect,
1487 exp->elts[2].symbol,
1494 default: /* Full-fledged expression. */
1495 aexpr = gen_trace_for_expr (tloc->address, exp);
1497 old_chain1 = make_cleanup_free_agent_expr (aexpr);
1501 report_agent_reqs_errors (aexpr);
1503 discard_cleanups (old_chain1);
1504 add_aexpr (collect, aexpr);
1506 /* Take care of the registers. */
1507 if (aexpr->reg_mask_len > 0)
1512 for (ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++)
1514 QUIT; /* Allow user to bail out with ^C. */
1515 if (aexpr->reg_mask[ndx1] != 0)
1517 /* Assume chars have 8 bits. */
1518 for (ndx2 = 0; ndx2 < 8; ndx2++)
1519 if (aexpr->reg_mask[ndx1] & (1 << ndx2))
1520 /* It's used -- record it. */
1521 add_register (collect,
1528 do_cleanups (old_chain);
1531 while (action_exp && *action_exp++ == ',');
1533 else if (cmd_cfunc_eq (cmd, teval_pseudocommand))
1536 { /* Repeat over a comma-separated list. */
1537 QUIT; /* Allow user to bail out with ^C. */
1538 while (isspace ((int) *action_exp))
1542 struct cleanup *old_chain = NULL;
1543 struct cleanup *old_chain1 = NULL;
1545 exp = parse_exp_1 (&action_exp,
1546 block_for_pc (tloc->address), 1);
1547 old_chain = make_cleanup (free_current_contents, &exp);
1549 aexpr = gen_eval_for_expr (tloc->address, exp);
1550 old_chain1 = make_cleanup_free_agent_expr (aexpr);
1553 report_agent_reqs_errors (aexpr);
1555 discard_cleanups (old_chain1);
1556 /* Even though we're not officially collecting, add
1557 to the collect list anyway. */
1558 add_aexpr (collect, aexpr);
1560 do_cleanups (old_chain);
1563 while (action_exp && *action_exp++ == ',');
1565 else if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand))
1567 /* We check against nested while-stepping when setting
1568 breakpoint action, so no way to run into nested
1570 gdb_assert (stepping_list);
1572 encode_actions_1 (action->body_list[0], t, tloc, frame_reg,
1573 frame_offset, stepping_list, NULL);
1576 error (_("Invalid tracepoint command '%s'"), action->line);
1580 /* Render all actions into gdb protocol. */
1583 encode_actions (struct breakpoint *t, struct bp_location *tloc,
1584 char ***tdp_actions, char ***stepping_actions)
1586 static char tdp_buff[2048], step_buff[2048];
1587 char *default_collect_line = NULL;
1588 struct command_line *actions;
1589 struct command_line *default_collect_action = NULL;
1591 LONGEST frame_offset;
1592 struct cleanup *back_to;
1594 back_to = make_cleanup (null_cleanup, NULL);
1596 clear_collection_list (&tracepoint_list);
1597 clear_collection_list (&stepping_list);
1599 *tdp_actions = NULL;
1600 *stepping_actions = NULL;
1602 gdbarch_virtual_frame_pointer (tloc->gdbarch,
1603 tloc->address, &frame_reg, &frame_offset);
1605 actions = breakpoint_commands (t);
1607 /* If there are default expressions to collect, make up a collect
1608 action and prepend to the action list to encode. Note that since
1609 validation is per-tracepoint (local var "xyz" might be valid for
1610 one tracepoint and not another, etc), we make up the action on
1611 the fly, and don't cache it. */
1612 if (*default_collect)
1616 default_collect_line = xstrprintf ("collect %s", default_collect);
1617 make_cleanup (xfree, default_collect_line);
1619 line = default_collect_line;
1620 validate_actionline (&line, t);
1622 default_collect_action = xmalloc (sizeof (struct command_line));
1623 make_cleanup (xfree, default_collect_action);
1624 default_collect_action->next = actions;
1625 default_collect_action->line = line;
1626 actions = default_collect_action;
1628 encode_actions_1 (actions, t, tloc, frame_reg, frame_offset,
1629 &tracepoint_list, &stepping_list);
1631 memrange_sortmerge (&tracepoint_list);
1632 memrange_sortmerge (&stepping_list);
1634 *tdp_actions = stringify_collection_list (&tracepoint_list,
1636 *stepping_actions = stringify_collection_list (&stepping_list,
1639 do_cleanups (back_to);
1643 add_aexpr (struct collection_list *collect, struct agent_expr *aexpr)
1645 if (collect->next_aexpr_elt >= collect->aexpr_listsize)
1647 collect->aexpr_list =
1648 xrealloc (collect->aexpr_list,
1649 2 * collect->aexpr_listsize * sizeof (struct agent_expr *));
1650 collect->aexpr_listsize *= 2;
1652 collect->aexpr_list[collect->next_aexpr_elt] = aexpr;
1653 collect->next_aexpr_elt++;
1657 process_tracepoint_on_disconnect (void)
1659 VEC(breakpoint_p) *tp_vec = NULL;
1661 struct breakpoint *b;
1662 int has_pending_p = 0;
1664 /* Check whether we still have pending tracepoint. If we have, warn the
1665 user that pending tracepoint will no longer work. */
1666 tp_vec = all_tracepoints ();
1667 for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, b); ix++)
1676 struct bp_location *loc1;
1678 for (loc1 = b->loc; loc1; loc1 = loc1->next)
1680 if (loc1->shlib_disabled)
1691 VEC_free (breakpoint_p, tp_vec);
1694 warning (_("Pending tracepoints will not be resolved while"
1695 " GDB is disconnected\n"));
1700 start_tracing (char *notes)
1702 VEC(breakpoint_p) *tp_vec = NULL;
1704 struct breakpoint *b;
1705 struct trace_state_variable *tsv;
1706 int any_enabled = 0, num_to_download = 0;
1709 tp_vec = all_tracepoints ();
1711 /* No point in tracing without any tracepoints... */
1712 if (VEC_length (breakpoint_p, tp_vec) == 0)
1714 VEC_free (breakpoint_p, tp_vec);
1715 error (_("No tracepoints defined, not starting trace"));
1718 for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, b); ix++)
1720 struct tracepoint *t = (struct tracepoint *) b;
1721 struct bp_location *loc;
1723 if (b->enable_state == bp_enabled)
1726 if ((b->type == bp_fast_tracepoint
1727 ? may_insert_fast_tracepoints
1728 : may_insert_tracepoints))
1731 warning (_("May not insert %stracepoints, skipping tracepoint %d"),
1732 (b->type == bp_fast_tracepoint ? "fast " : ""), b->number);
1737 if (target_supports_enable_disable_tracepoint ())
1738 warning (_("No tracepoints enabled"));
1741 /* No point in tracing with only disabled tracepoints that
1742 cannot be re-enabled. */
1743 VEC_free (breakpoint_p, tp_vec);
1744 error (_("No tracepoints enabled, not starting trace"));
1748 if (num_to_download <= 0)
1750 VEC_free (breakpoint_p, tp_vec);
1751 error (_("No tracepoints that may be downloaded, not starting trace"));
1754 target_trace_init ();
1756 for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, b); ix++)
1758 struct tracepoint *t = (struct tracepoint *) b;
1759 struct bp_location *loc;
1761 /* Clear `inserted' flag. */
1762 for (loc = b->loc; loc; loc = loc->next)
1765 if ((b->type == bp_fast_tracepoint
1766 ? !may_insert_fast_tracepoints
1767 : !may_insert_tracepoints))
1770 t->number_on_target = 0;
1772 for (loc = b->loc; loc; loc = loc->next)
1774 /* Since tracepoint locations are never duplicated, `inserted'
1775 flag should be zero. */
1776 gdb_assert (!loc->inserted);
1778 target_download_tracepoint (loc);
1783 t->number_on_target = b->number;
1785 for (loc = b->loc; loc; loc = loc->next)
1786 if (loc->probe != NULL)
1787 loc->probe->pops->set_semaphore (loc->probe, loc->gdbarch);
1789 VEC_free (breakpoint_p, tp_vec);
1791 /* Send down all the trace state variables too. */
1792 for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix)
1794 target_download_trace_state_variable (tsv);
1797 /* Tell target to treat text-like sections as transparent. */
1798 target_trace_set_readonly_regions ();
1799 /* Set some mode flags. */
1800 target_set_disconnected_tracing (disconnected_tracing);
1801 target_set_circular_trace_buffer (circular_trace_buffer);
1804 notes = trace_notes;
1805 ret = target_set_trace_notes (trace_user, notes, NULL);
1807 if (!ret && (trace_user || notes))
1808 warning (_("Target does not support trace user/notes, info ignored"));
1810 /* Now insert traps and begin collecting data. */
1811 target_trace_start ();
1813 /* Reset our local state. */
1814 set_traceframe_num (-1);
1815 set_tracepoint_num (-1);
1816 set_traceframe_context (NULL);
1817 current_trace_status()->running = 1;
1818 clear_traceframe_info ();
1821 /* The tstart command requests the target to start a new trace run.
1822 The command passes any arguments it has to the target verbatim, as
1823 an optional "trace note". This is useful as for instance a warning
1824 to other users if the trace runs disconnected, and you don't want
1825 anybody else messing with the target. */
1828 trace_start_command (char *args, int from_tty)
1830 dont_repeat (); /* Like "run", dangerous to repeat accidentally. */
1832 if (current_trace_status ()->running)
1835 && !query (_("A trace is running already. Start a new run? ")))
1836 error (_("New trace run not started."));
1839 start_tracing (args);
1842 /* The tstop command stops the tracing run. The command passes any
1843 supplied arguments to the target verbatim as a "stop note"; if the
1844 target supports trace notes, then it will be reported back as part
1845 of the trace run's status. */
1848 trace_stop_command (char *args, int from_tty)
1850 if (!current_trace_status ()->running)
1851 error (_("Trace is not running."));
1853 stop_tracing (args);
1857 stop_tracing (char *note)
1860 VEC(breakpoint_p) *tp_vec = NULL;
1862 struct breakpoint *t;
1864 target_trace_stop ();
1866 tp_vec = all_tracepoints ();
1867 for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++)
1869 struct bp_location *loc;
1871 if ((t->type == bp_fast_tracepoint
1872 ? !may_insert_fast_tracepoints
1873 : !may_insert_tracepoints))
1876 for (loc = t->loc; loc; loc = loc->next)
1878 /* GDB can be totally absent in some disconnected trace scenarios,
1879 but we don't really care if this semaphore goes out of sync.
1880 That's why we are decrementing it here, but not taking care
1882 if (loc->probe != NULL)
1883 loc->probe->pops->clear_semaphore (loc->probe, loc->gdbarch);
1887 VEC_free (breakpoint_p, tp_vec);
1890 note = trace_stop_notes;
1891 ret = target_set_trace_notes (NULL, NULL, note);
1894 warning (_("Target does not support trace notes, note ignored"));
1896 /* Should change in response to reply? */
1897 current_trace_status ()->running = 0;
1900 /* tstatus command */
1902 trace_status_command (char *args, int from_tty)
1904 struct trace_status *ts = current_trace_status ();
1906 VEC(breakpoint_p) *tp_vec = NULL;
1907 struct breakpoint *t;
1909 status = target_get_trace_status (ts);
1914 printf_filtered (_("Using a trace file.\n"));
1917 printf_filtered (_("Trace can not be run on this target.\n"));
1922 if (!ts->running_known)
1924 printf_filtered (_("Run/stop status is unknown.\n"));
1926 else if (ts->running)
1928 printf_filtered (_("Trace is running on the target.\n"));
1932 switch (ts->stop_reason)
1934 case trace_never_run:
1935 printf_filtered (_("No trace has been run on the target.\n"));
1939 printf_filtered (_("Trace stopped by a tstop command (%s).\n"),
1942 printf_filtered (_("Trace stopped by a tstop command.\n"));
1944 case trace_buffer_full:
1945 printf_filtered (_("Trace stopped because the buffer was full.\n"));
1947 case trace_disconnected:
1948 printf_filtered (_("Trace stopped because of disconnection.\n"));
1950 case tracepoint_passcount:
1951 printf_filtered (_("Trace stopped by tracepoint %d.\n"),
1952 ts->stopping_tracepoint);
1954 case tracepoint_error:
1955 if (ts->stopping_tracepoint)
1956 printf_filtered (_("Trace stopped by an "
1957 "error (%s, tracepoint %d).\n"),
1958 ts->stop_desc, ts->stopping_tracepoint);
1960 printf_filtered (_("Trace stopped by an error (%s).\n"),
1963 case trace_stop_reason_unknown:
1964 printf_filtered (_("Trace stopped for an unknown reason.\n"));
1967 printf_filtered (_("Trace stopped for some other reason (%d).\n"),
1973 if (ts->traceframes_created >= 0
1974 && ts->traceframe_count != ts->traceframes_created)
1976 printf_filtered (_("Buffer contains %d trace "
1977 "frames (of %d created total).\n"),
1978 ts->traceframe_count, ts->traceframes_created);
1980 else if (ts->traceframe_count >= 0)
1982 printf_filtered (_("Collected %d trace frames.\n"),
1983 ts->traceframe_count);
1986 if (ts->buffer_free >= 0)
1988 if (ts->buffer_size >= 0)
1990 printf_filtered (_("Trace buffer has %d bytes of %d bytes free"),
1991 ts->buffer_free, ts->buffer_size);
1992 if (ts->buffer_size > 0)
1993 printf_filtered (_(" (%d%% full)"),
1994 ((int) ((((long long) (ts->buffer_size
1995 - ts->buffer_free)) * 100)
1996 / ts->buffer_size)));
1997 printf_filtered (_(".\n"));
2000 printf_filtered (_("Trace buffer has %d bytes free.\n"),
2004 if (ts->disconnected_tracing)
2005 printf_filtered (_("Trace will continue if GDB disconnects.\n"));
2007 printf_filtered (_("Trace will stop if GDB disconnects.\n"));
2009 if (ts->circular_buffer)
2010 printf_filtered (_("Trace buffer is circular.\n"));
2012 if (ts->user_name && strlen (ts->user_name) > 0)
2013 printf_filtered (_("Trace user is %s.\n"), ts->user_name);
2015 if (ts->notes && strlen (ts->notes) > 0)
2016 printf_filtered (_("Trace notes: %s.\n"), ts->notes);
2018 /* Now report on what we're doing with tfind. */
2019 if (traceframe_number >= 0)
2020 printf_filtered (_("Looking at trace frame %d, tracepoint %d.\n"),
2021 traceframe_number, tracepoint_number);
2023 printf_filtered (_("Not looking at any trace frame.\n"));
2025 /* Report start/stop times if supplied. */
2030 LONGEST run_time = ts->stop_time - ts->start_time;
2032 /* Reporting a run time is more readable than two long numbers. */
2033 printf_filtered (_("Trace started at %ld.%06ld secs, stopped %ld.%06ld secs later.\n"),
2034 (long int) ts->start_time / 1000000,
2035 (long int) ts->start_time % 1000000,
2036 (long int) run_time / 1000000,
2037 (long int) run_time % 1000000);
2040 printf_filtered (_("Trace started at %ld.%06ld secs.\n"),
2041 (long int) ts->start_time / 1000000,
2042 (long int) ts->start_time % 1000000);
2044 else if (ts->stop_time)
2045 printf_filtered (_("Trace stopped at %ld.%06ld secs.\n"),
2046 (long int) ts->stop_time / 1000000,
2047 (long int) ts->stop_time % 1000000);
2049 /* Now report any per-tracepoint status available. */
2050 tp_vec = all_tracepoints ();
2052 for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++)
2053 target_get_tracepoint_status (t, NULL);
2055 VEC_free (breakpoint_p, tp_vec);
2058 /* Report the trace status to uiout, in a way suitable for MI, and not
2059 suitable for CLI. If ON_STOP is true, suppress a few fields that
2060 are not meaningful in the -trace-stop response.
2062 The implementation is essentially parallel to trace_status_command, but
2063 merging them will result in unreadable code. */
2065 trace_status_mi (int on_stop)
2067 struct ui_out *uiout = current_uiout;
2068 struct trace_status *ts = current_trace_status ();
2071 status = target_get_trace_status (ts);
2073 if (status == -1 && !ts->from_file)
2075 ui_out_field_string (uiout, "supported", "0");
2080 ui_out_field_string (uiout, "supported", "file");
2082 ui_out_field_string (uiout, "supported", "1");
2084 gdb_assert (ts->running_known);
2088 ui_out_field_string (uiout, "running", "1");
2090 /* Unlike CLI, do not show the state of 'disconnected-tracing' variable.
2091 Given that the frontend gets the status either on -trace-stop, or from
2092 -trace-status after re-connection, it does not seem like this
2093 information is necessary for anything. It is not necessary for either
2094 figuring the vital state of the target nor for navigation of trace
2095 frames. If the frontend wants to show the current state is some
2096 configure dialog, it can request the value when such dialog is
2097 invoked by the user. */
2101 char *stop_reason = NULL;
2102 int stopping_tracepoint = -1;
2105 ui_out_field_string (uiout, "running", "0");
2107 if (ts->stop_reason != trace_stop_reason_unknown)
2109 switch (ts->stop_reason)
2112 stop_reason = "request";
2114 case trace_buffer_full:
2115 stop_reason = "overflow";
2117 case trace_disconnected:
2118 stop_reason = "disconnection";
2120 case tracepoint_passcount:
2121 stop_reason = "passcount";
2122 stopping_tracepoint = ts->stopping_tracepoint;
2124 case tracepoint_error:
2125 stop_reason = "error";
2126 stopping_tracepoint = ts->stopping_tracepoint;
2132 ui_out_field_string (uiout, "stop-reason", stop_reason);
2133 if (stopping_tracepoint != -1)
2134 ui_out_field_int (uiout, "stopping-tracepoint",
2135 stopping_tracepoint);
2136 if (ts->stop_reason == tracepoint_error)
2137 ui_out_field_string (uiout, "error-description",
2143 if (ts->traceframe_count != -1)
2144 ui_out_field_int (uiout, "frames", ts->traceframe_count);
2145 if (ts->traceframes_created != -1)
2146 ui_out_field_int (uiout, "frames-created", ts->traceframes_created);
2147 if (ts->buffer_size != -1)
2148 ui_out_field_int (uiout, "buffer-size", ts->buffer_size);
2149 if (ts->buffer_free != -1)
2150 ui_out_field_int (uiout, "buffer-free", ts->buffer_free);
2152 ui_out_field_int (uiout, "disconnected", ts->disconnected_tracing);
2153 ui_out_field_int (uiout, "circular", ts->circular_buffer);
2155 ui_out_field_string (uiout, "user-name", ts->user_name);
2156 ui_out_field_string (uiout, "notes", ts->notes);
2161 xsnprintf (buf, sizeof buf, "%ld.%06ld",
2162 (long int) ts->start_time / 1000000,
2163 (long int) ts->start_time % 1000000);
2164 ui_out_field_string (uiout, "start-time", buf);
2165 xsnprintf (buf, sizeof buf, "%ld.%06ld",
2166 (long int) ts->stop_time / 1000000,
2167 (long int) ts->stop_time % 1000000);
2168 ui_out_field_string (uiout, "stop-time", buf);
2172 /* This function handles the details of what to do about an ongoing
2173 tracing run if the user has asked to detach or otherwise disconnect
2176 disconnect_tracing (int from_tty)
2178 /* It can happen that the target that was tracing went away on its
2179 own, and we didn't notice. Get a status update, and if the
2180 current target doesn't even do tracing, then assume it's not
2182 if (target_get_trace_status (current_trace_status ()) < 0)
2183 current_trace_status ()->running = 0;
2185 /* If running interactively, give the user the option to cancel and
2186 then decide what to do differently with the run. Scripts are
2187 just going to disconnect and let the target deal with it,
2188 according to how it's been instructed previously via
2189 disconnected-tracing. */
2190 if (current_trace_status ()->running && from_tty)
2192 process_tracepoint_on_disconnect ();
2194 if (current_trace_status ()->disconnected_tracing)
2196 if (!query (_("Trace is running and will "
2197 "continue after detach; detach anyway? ")))
2198 error (_("Not confirmed."));
2202 if (!query (_("Trace is running but will "
2203 "stop on detach; detach anyway? ")))
2204 error (_("Not confirmed."));
2208 /* Also we want to be out of tfind mode, otherwise things can get
2209 confusing upon reconnection. Just use these calls instead of
2210 full tfind_1 behavior because we're in the middle of detaching,
2211 and there's no point to updating current stack frame etc. */
2212 set_current_traceframe (-1);
2213 set_traceframe_context (NULL);
2216 /* Worker function for the various flavors of the tfind command. */
2218 tfind_1 (enum trace_find_type type, int num,
2219 ULONGEST addr1, ULONGEST addr2,
2222 int target_frameno = -1, target_tracept = -1;
2223 struct frame_id old_frame_id = null_frame_id;
2224 struct tracepoint *tp;
2225 struct ui_out *uiout = current_uiout;
2227 /* Only try to get the current stack frame if we have a chance of
2228 succeeding. In particular, if we're trying to get a first trace
2229 frame while all threads are running, it's not going to succeed,
2230 so leave it with a default value and let the frame comparison
2231 below (correctly) decide to print out the source location of the
2233 if (!(type == tfind_number && num == -1)
2234 && (has_stack_frames () || traceframe_number >= 0))
2235 old_frame_id = get_frame_id (get_current_frame ());
2237 target_frameno = target_trace_find (type, num, addr1, addr2,
2240 if (type == tfind_number
2242 && target_frameno == -1)
2244 /* We told the target to get out of tfind mode, and it did. */
2246 else if (target_frameno == -1)
2248 /* A request for a non-existent trace frame has failed.
2249 Our response will be different, depending on FROM_TTY:
2251 If FROM_TTY is true, meaning that this command was
2252 typed interactively by the user, then give an error
2253 and DO NOT change the state of traceframe_number etc.
2255 However if FROM_TTY is false, meaning that we're either
2256 in a script, a loop, or a user-defined command, then
2257 DON'T give an error, but DO change the state of
2258 traceframe_number etc. to invalid.
2260 The rationalle is that if you typed the command, you
2261 might just have committed a typo or something, and you'd
2262 like to NOT lose your current debugging state. However
2263 if you're in a user-defined command or especially in a
2264 loop, then you need a way to detect that the command
2265 failed WITHOUT aborting. This allows you to write
2266 scripts that search thru the trace buffer until the end,
2267 and then continue on to do something else. */
2270 error (_("Target failed to find requested trace frame."));
2274 printf_filtered ("End of trace buffer.\n");
2275 #if 0 /* dubious now? */
2276 /* The following will not recurse, since it's
2278 trace_find_command ("-1", from_tty);
2283 tp = get_tracepoint_by_number_on_target (target_tracept);
2285 reinit_frame_cache ();
2286 registers_changed ();
2287 target_dcache_invalidate ();
2288 set_traceframe_num (target_frameno);
2289 clear_traceframe_info ();
2290 set_tracepoint_num (tp ? tp->base.number : target_tracept);
2291 if (target_frameno == -1)
2292 set_traceframe_context (NULL);
2294 set_traceframe_context (get_current_frame ());
2296 if (traceframe_number >= 0)
2298 /* Use different branches for MI and CLI to make CLI messages
2300 if (ui_out_is_mi_like_p (uiout))
2302 ui_out_field_string (uiout, "found", "1");
2303 ui_out_field_int (uiout, "tracepoint", tracepoint_number);
2304 ui_out_field_int (uiout, "traceframe", traceframe_number);
2308 printf_unfiltered (_("Found trace frame %d, tracepoint %d\n"),
2309 traceframe_number, tracepoint_number);
2314 if (ui_out_is_mi_like_p (uiout))
2315 ui_out_field_string (uiout, "found", "0");
2316 else if (type == tfind_number && num == -1)
2317 printf_unfiltered (_("No longer looking at any trace frame\n"));
2318 else /* This case may never occur, check. */
2319 printf_unfiltered (_("No trace frame found\n"));
2322 /* If we're in nonstop mode and getting out of looking at trace
2323 frames, there won't be any current frame to go back to and
2326 && (has_stack_frames () || traceframe_number >= 0))
2328 enum print_what print_what;
2330 /* NOTE: in imitation of the step command, try to determine
2331 whether we have made a transition from one function to
2332 another. If so, we'll print the "stack frame" (ie. the new
2333 function and it's arguments) -- otherwise we'll just show the
2336 if (frame_id_eq (old_frame_id,
2337 get_frame_id (get_current_frame ())))
2338 print_what = SRC_LINE;
2340 print_what = SRC_AND_LOC;
2342 print_stack_frame (get_selected_frame (NULL), 1, print_what);
2347 /* trace_find_command takes a trace frame number n,
2348 sends "QTFrame:<n>" to the target,
2349 and accepts a reply that may contain several optional pieces
2350 of information: a frame number, a tracepoint number, and an
2351 indication of whether this is a trap frame or a stepping frame.
2353 The minimal response is just "OK" (which indicates that the
2354 target does not give us a frame number or a tracepoint number).
2355 Instead of that, the target may send us a string containing
2357 F<hexnum> (gives the selected frame number)
2358 T<hexnum> (gives the selected tracepoint number)
2363 trace_find_command (char *args, int from_tty)
2364 { /* This should only be called with a numeric argument. */
2367 if (current_trace_status ()->running && !current_trace_status ()->from_file)
2368 error (_("May not look at trace frames while trace is running."));
2370 if (args == 0 || *args == 0)
2371 { /* TFIND with no args means find NEXT trace frame. */
2372 if (traceframe_number == -1)
2373 frameno = 0; /* "next" is first one. */
2375 frameno = traceframe_number + 1;
2377 else if (0 == strcmp (args, "-"))
2379 if (traceframe_number == -1)
2380 error (_("not debugging trace buffer"));
2381 else if (from_tty && traceframe_number == 0)
2382 error (_("already at start of trace buffer"));
2384 frameno = traceframe_number - 1;
2386 /* A hack to work around eval's need for fp to have been collected. */
2387 else if (0 == strcmp (args, "-1"))
2390 frameno = parse_and_eval_long (args);
2393 error (_("invalid input (%d is less than zero)"), frameno);
2395 tfind_1 (tfind_number, frameno, 0, 0, from_tty);
2400 trace_find_end_command (char *args, int from_tty)
2402 trace_find_command ("-1", from_tty);
2407 trace_find_none_command (char *args, int from_tty)
2409 trace_find_command ("-1", from_tty);
2414 trace_find_start_command (char *args, int from_tty)
2416 trace_find_command ("0", from_tty);
2419 /* tfind pc command */
2421 trace_find_pc_command (char *args, int from_tty)
2425 if (current_trace_status ()->running && !current_trace_status ()->from_file)
2426 error (_("May not look at trace frames while trace is running."));
2428 if (args == 0 || *args == 0)
2429 pc = regcache_read_pc (get_current_regcache ());
2431 pc = parse_and_eval_address (args);
2433 tfind_1 (tfind_pc, 0, pc, 0, from_tty);
2436 /* tfind tracepoint command */
2438 trace_find_tracepoint_command (char *args, int from_tty)
2441 struct tracepoint *tp;
2443 if (current_trace_status ()->running && !current_trace_status ()->from_file)
2444 error (_("May not look at trace frames while trace is running."));
2446 if (args == 0 || *args == 0)
2448 if (tracepoint_number == -1)
2449 error (_("No current tracepoint -- please supply an argument."));
2451 tdp = tracepoint_number; /* Default is current TDP. */
2454 tdp = parse_and_eval_long (args);
2456 /* If we have the tracepoint on hand, use the number that the
2457 target knows about (which may be different if we disconnected
2458 and reconnected). */
2459 tp = get_tracepoint (tdp);
2461 tdp = tp->number_on_target;
2463 tfind_1 (tfind_tp, tdp, 0, 0, from_tty);
2466 /* TFIND LINE command:
2468 This command will take a sourceline for argument, just like BREAK
2469 or TRACE (ie. anything that "decode_line_1" can handle).
2471 With no argument, this command will find the next trace frame
2472 corresponding to a source line OTHER THAN THE CURRENT ONE. */
2475 trace_find_line_command (char *args, int from_tty)
2477 static CORE_ADDR start_pc, end_pc;
2478 struct symtabs_and_lines sals;
2479 struct symtab_and_line sal;
2480 struct cleanup *old_chain;
2482 if (current_trace_status ()->running && !current_trace_status ()->from_file)
2483 error (_("May not look at trace frames while trace is running."));
2485 if (args == 0 || *args == 0)
2487 sal = find_pc_line (get_frame_pc (get_current_frame ()), 0);
2489 sals.sals = (struct symtab_and_line *)
2490 xmalloc (sizeof (struct symtab_and_line));
2495 sals = decode_line_spec (args, DECODE_LINE_FUNFIRSTLINE);
2499 old_chain = make_cleanup (xfree, sals.sals);
2500 if (sal.symtab == 0)
2501 error (_("No line number information available."));
2503 if (sal.line > 0 && find_line_pc_range (sal, &start_pc, &end_pc))
2505 if (start_pc == end_pc)
2507 printf_filtered ("Line %d of \"%s\"",
2508 sal.line, sal.symtab->filename);
2510 printf_filtered (" is at address ");
2511 print_address (get_current_arch (), start_pc, gdb_stdout);
2513 printf_filtered (" but contains no code.\n");
2514 sal = find_pc_line (start_pc, 0);
2516 && find_line_pc_range (sal, &start_pc, &end_pc)
2517 && start_pc != end_pc)
2518 printf_filtered ("Attempting to find line %d instead.\n",
2521 error (_("Cannot find a good line."));
2525 /* Is there any case in which we get here, and have an address
2526 which the user would want to see? If we have debugging
2527 symbols and no line numbers? */
2528 error (_("Line number %d is out of range for \"%s\"."),
2529 sal.line, sal.symtab->filename);
2531 /* Find within range of stated line. */
2533 tfind_1 (tfind_range, 0, start_pc, end_pc - 1, from_tty);
2535 tfind_1 (tfind_outside, 0, start_pc, end_pc - 1, from_tty);
2536 do_cleanups (old_chain);
2539 /* tfind range command */
2541 trace_find_range_command (char *args, int from_tty)
2543 static CORE_ADDR start, stop;
2546 if (current_trace_status ()->running && !current_trace_status ()->from_file)
2547 error (_("May not look at trace frames while trace is running."));
2549 if (args == 0 || *args == 0)
2550 { /* XXX FIXME: what should default behavior be? */
2551 printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n");
2555 if (0 != (tmp = strchr (args, ',')))
2557 *tmp++ = '\0'; /* Terminate start address. */
2558 while (isspace ((int) *tmp))
2560 start = parse_and_eval_address (args);
2561 stop = parse_and_eval_address (tmp);
2564 { /* No explicit end address? */
2565 start = parse_and_eval_address (args);
2566 stop = start + 1; /* ??? */
2569 tfind_1 (tfind_range, 0, start, stop, from_tty);
2572 /* tfind outside command */
2574 trace_find_outside_command (char *args, int from_tty)
2576 CORE_ADDR start, stop;
2579 if (current_trace_status ()->running && !current_trace_status ()->from_file)
2580 error (_("May not look at trace frames while trace is running."));
2582 if (args == 0 || *args == 0)
2583 { /* XXX FIXME: what should default behavior be? */
2584 printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n");
2588 if (0 != (tmp = strchr (args, ',')))
2590 *tmp++ = '\0'; /* Terminate start address. */
2591 while (isspace ((int) *tmp))
2593 start = parse_and_eval_address (args);
2594 stop = parse_and_eval_address (tmp);
2597 { /* No explicit end address? */
2598 start = parse_and_eval_address (args);
2599 stop = start + 1; /* ??? */
2602 tfind_1 (tfind_outside, 0, start, stop, from_tty);
2605 /* info scope command: list the locals for a scope. */
2607 scope_info (char *args, int from_tty)
2609 struct symtabs_and_lines sals;
2611 struct minimal_symbol *msym;
2612 struct block *block;
2613 const char *symname;
2614 char *save_args = args;
2615 struct block_iterator iter;
2617 struct gdbarch *gdbarch;
2620 if (args == 0 || *args == 0)
2621 error (_("requires an argument (function, "
2622 "line or *addr) to define a scope"));
2624 sals = decode_line_1 (&args, DECODE_LINE_FUNFIRSTLINE, NULL, 0);
2625 if (sals.nelts == 0)
2626 return; /* Presumably decode_line_1 has already warned. */
2628 /* Resolve line numbers to PC. */
2629 resolve_sal_pc (&sals.sals[0]);
2630 block = block_for_pc (sals.sals[0].pc);
2634 QUIT; /* Allow user to bail out with ^C. */
2635 ALL_BLOCK_SYMBOLS (block, iter, sym)
2637 QUIT; /* Allow user to bail out with ^C. */
2639 printf_filtered ("Scope for %s:\n", save_args);
2642 symname = SYMBOL_PRINT_NAME (sym);
2643 if (symname == NULL || *symname == '\0')
2644 continue; /* Probably botched, certainly useless. */
2646 gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile);
2648 printf_filtered ("Symbol %s is ", symname);
2649 switch (SYMBOL_CLASS (sym))
2652 case LOC_UNDEF: /* Messed up symbol? */
2653 printf_filtered ("a bogus symbol, class %d.\n",
2654 SYMBOL_CLASS (sym));
2655 count--; /* Don't count this one. */
2658 printf_filtered ("a constant with value %s (%s)",
2659 plongest (SYMBOL_VALUE (sym)),
2660 hex_string (SYMBOL_VALUE (sym)));
2662 case LOC_CONST_BYTES:
2663 printf_filtered ("constant bytes: ");
2664 if (SYMBOL_TYPE (sym))
2665 for (j = 0; j < TYPE_LENGTH (SYMBOL_TYPE (sym)); j++)
2666 fprintf_filtered (gdb_stdout, " %02x",
2667 (unsigned) SYMBOL_VALUE_BYTES (sym)[j]);
2670 printf_filtered ("in static storage at address ");
2671 printf_filtered ("%s", paddress (gdbarch,
2672 SYMBOL_VALUE_ADDRESS (sym)));
2675 /* GDBARCH is the architecture associated with the objfile
2676 the symbol is defined in; the target architecture may be
2677 different, and may provide additional registers. However,
2678 we do not know the target architecture at this point.
2679 We assume the objfile architecture will contain all the
2680 standard registers that occur in debug info in that
2682 regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym,
2685 if (SYMBOL_IS_ARGUMENT (sym))
2686 printf_filtered ("an argument in register $%s",
2687 gdbarch_register_name (gdbarch, regno));
2689 printf_filtered ("a local variable in register $%s",
2690 gdbarch_register_name (gdbarch, regno));
2693 printf_filtered ("an argument at stack/frame offset %s",
2694 plongest (SYMBOL_VALUE (sym)));
2697 printf_filtered ("a local variable at frame offset %s",
2698 plongest (SYMBOL_VALUE (sym)));
2701 printf_filtered ("a reference argument at offset %s",
2702 plongest (SYMBOL_VALUE (sym)));
2704 case LOC_REGPARM_ADDR:
2705 /* Note comment at LOC_REGISTER. */
2706 regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym,
2708 printf_filtered ("the address of an argument, in register $%s",
2709 gdbarch_register_name (gdbarch, regno));
2712 printf_filtered ("a typedef.\n");
2715 printf_filtered ("a label at address ");
2716 printf_filtered ("%s", paddress (gdbarch,
2717 SYMBOL_VALUE_ADDRESS (sym)));
2720 printf_filtered ("a function at address ");
2721 printf_filtered ("%s",
2722 paddress (gdbarch, BLOCK_START (SYMBOL_BLOCK_VALUE (sym))));
2724 case LOC_UNRESOLVED:
2725 msym = lookup_minimal_symbol (SYMBOL_LINKAGE_NAME (sym),
2728 printf_filtered ("Unresolved Static");
2731 printf_filtered ("static storage at address ");
2732 printf_filtered ("%s",
2733 paddress (gdbarch, SYMBOL_VALUE_ADDRESS (msym)));
2736 case LOC_OPTIMIZED_OUT:
2737 printf_filtered ("optimized out.\n");
2740 SYMBOL_COMPUTED_OPS (sym)->describe_location (sym,
2741 BLOCK_START (block),
2745 if (SYMBOL_TYPE (sym))
2746 printf_filtered (", length %d.\n",
2747 TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))));
2749 if (BLOCK_FUNCTION (block))
2752 block = BLOCK_SUPERBLOCK (block);
2755 printf_filtered ("Scope for %s contains no locals or arguments.\n",
2759 /* worker function (cleanup) */
2761 replace_comma (void *data)
2768 /* Helper for trace_dump_command. Dump the action list starting at
2769 ACTION. STEPPING_ACTIONS is true if we're iterating over the
2770 actions of the body of a while-stepping action. STEPPING_FRAME is
2771 set if the current traceframe was determined to be a while-stepping
2775 trace_dump_actions (struct command_line *action,
2776 int stepping_actions, int stepping_frame,
2779 char *action_exp, *next_comma;
2781 for (; action != NULL; action = action->next)
2783 struct cmd_list_element *cmd;
2785 QUIT; /* Allow user to bail out with ^C. */
2786 action_exp = action->line;
2787 while (isspace ((int) *action_exp))
2790 /* The collection actions to be done while stepping are
2791 bracketed by the commands "while-stepping" and "end". */
2793 if (*action_exp == '#') /* comment line */
2796 cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1);
2798 error (_("Bad action list item: %s"), action_exp);
2800 if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand))
2804 for (i = 0; i < action->body_count; ++i)
2805 trace_dump_actions (action->body_list[i],
2806 1, stepping_frame, from_tty);
2808 else if (cmd_cfunc_eq (cmd, collect_pseudocommand))
2810 /* Display the collected data.
2811 For the trap frame, display only what was collected at
2812 the trap. Likewise for stepping frames, display only
2813 what was collected while stepping. This means that the
2814 two boolean variables, STEPPING_FRAME and
2815 STEPPING_ACTIONS should be equal. */
2816 if (stepping_frame == stepping_actions)
2818 if (*action_exp == '/')
2819 action_exp = decode_agent_options (action_exp);
2822 { /* Repeat over a comma-separated list. */
2823 QUIT; /* Allow user to bail out with ^C. */
2824 if (*action_exp == ',')
2826 while (isspace ((int) *action_exp))
2829 next_comma = strchr (action_exp, ',');
2831 if (0 == strncasecmp (action_exp, "$reg", 4))
2832 registers_info (NULL, from_tty);
2833 else if (0 == strncasecmp (action_exp, "$_ret", 5))
2835 else if (0 == strncasecmp (action_exp, "$loc", 4))
2836 locals_info (NULL, from_tty);
2837 else if (0 == strncasecmp (action_exp, "$arg", 4))
2838 args_info (NULL, from_tty);
2843 make_cleanup (replace_comma, next_comma);
2846 printf_filtered ("%s = ", action_exp);
2847 output_command (action_exp, from_tty);
2848 printf_filtered ("\n");
2852 action_exp = next_comma;
2854 while (action_exp && *action_exp == ',');
2860 /* The tdump command. */
2863 trace_dump_command (char *args, int from_tty)
2865 struct regcache *regcache;
2866 struct tracepoint *t;
2867 int stepping_frame = 0;
2868 struct bp_location *loc;
2869 char *line, *default_collect_line = NULL;
2870 struct command_line *actions, *default_collect_action = NULL;
2871 struct cleanup *old_chain = NULL;
2873 if (tracepoint_number == -1)
2875 warning (_("No current trace frame."));
2879 t = get_tracepoint (tracepoint_number);
2882 error (_("No known tracepoint matches 'current' tracepoint #%d."),
2885 printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n",
2886 tracepoint_number, traceframe_number);
2888 /* The current frame is a trap frame if the frame PC is equal
2889 to the tracepoint PC. If not, then the current frame was
2890 collected during single-stepping. */
2892 regcache = get_current_regcache ();
2894 /* If the traceframe's address matches any of the tracepoint's
2895 locations, assume it is a direct hit rather than a while-stepping
2896 frame. (FIXME this is not reliable, should record each frame's
2899 for (loc = t->base.loc; loc; loc = loc->next)
2900 if (loc->address == regcache_read_pc (regcache))
2903 actions = breakpoint_commands (&t->base);
2905 /* If there is a default-collect list, make up a collect command,
2906 prepend to the tracepoint's commands, and pass the whole mess to
2907 the trace dump scanner. We need to validate because
2908 default-collect might have been junked since the trace run. */
2909 if (*default_collect)
2911 default_collect_line = xstrprintf ("collect %s", default_collect);
2912 old_chain = make_cleanup (xfree, default_collect_line);
2913 line = default_collect_line;
2914 validate_actionline (&line, &t->base);
2915 default_collect_action = xmalloc (sizeof (struct command_line));
2916 make_cleanup (xfree, default_collect_action);
2917 default_collect_action->next = actions;
2918 default_collect_action->line = line;
2919 actions = default_collect_action;
2922 trace_dump_actions (actions, 0, stepping_frame, from_tty);
2924 if (*default_collect)
2925 do_cleanups (old_chain);
2928 /* Encode a piece of a tracepoint's source-level definition in a form
2929 that is suitable for both protocol and saving in files. */
2930 /* This version does not do multiple encodes for long strings; it should
2931 return an offset to the next piece to encode. FIXME */
2934 encode_source_string (int tpnum, ULONGEST addr,
2935 char *srctype, char *src, char *buf, int buf_size)
2937 if (80 + strlen (srctype) > buf_size)
2938 error (_("Buffer too small for source encoding"));
2939 sprintf (buf, "%x:%s:%s:%x:%x:",
2940 tpnum, phex_nz (addr, sizeof (addr)),
2941 srctype, 0, (int) strlen (src));
2942 if (strlen (buf) + strlen (src) * 2 >= buf_size)
2943 error (_("Source string too long for buffer"));
2944 bin2hex (src, buf + strlen (buf), 0);
2948 extern int trace_regblock_size;
2950 /* Save tracepoint data to file named FILENAME. If TARGET_DOES_SAVE is
2951 non-zero, the save is performed on the target, otherwise GDB obtains all
2952 trace data and saves it locally. */
2955 trace_save (const char *filename, int target_does_save)
2957 struct cleanup *cleanup;
2959 struct trace_status *ts = current_trace_status ();
2962 struct uploaded_tp *uploaded_tps = NULL, *utp;
2963 struct uploaded_tsv *uploaded_tsvs = NULL, *utsv;
2967 ULONGEST offset = 0;
2968 #define MAX_TRACE_UPLOAD 2000
2969 gdb_byte buf[MAX_TRACE_UPLOAD];
2972 /* If the target is to save the data to a file on its own, then just
2973 send the command and be done with it. */
2974 if (target_does_save)
2976 err = target_save_trace_data (filename);
2978 error (_("Target failed to save trace data to '%s'."),
2983 /* Get the trace status first before opening the file, so if the
2984 target is losing, we can get out without touching files. */
2985 status = target_get_trace_status (ts);
2987 pathname = tilde_expand (filename);
2988 cleanup = make_cleanup (xfree, pathname);
2990 fp = fopen (pathname, "wb");
2992 error (_("Unable to open file '%s' for saving trace data (%s)"),
2993 filename, safe_strerror (errno));
2994 make_cleanup_fclose (fp);
2996 /* Write a file header, with a high-bit-set char to indicate a
2997 binary file, plus a hint as what this file is, and a version
2998 number in case of future needs. */
2999 written = fwrite ("\x7fTRACE0\n", 8, 1, fp);
3001 perror_with_name (pathname);
3003 /* Write descriptive info. */
3005 /* Write out the size of a register block. */
3006 fprintf (fp, "R %x\n", trace_regblock_size);
3008 /* Write out status of the tracing run (aka "tstatus" info). */
3009 fprintf (fp, "status %c;%s",
3010 (ts->running ? '1' : '0'), stop_reason_names[ts->stop_reason]);
3011 if (ts->stop_reason == tracepoint_error)
3013 char *buf = (char *) alloca (strlen (ts->stop_desc) * 2 + 1);
3015 bin2hex ((gdb_byte *) ts->stop_desc, buf, 0);
3016 fprintf (fp, ":%s", buf);
3018 fprintf (fp, ":%x", ts->stopping_tracepoint);
3019 if (ts->traceframe_count >= 0)
3020 fprintf (fp, ";tframes:%x", ts->traceframe_count);
3021 if (ts->traceframes_created >= 0)
3022 fprintf (fp, ";tcreated:%x", ts->traceframes_created);
3023 if (ts->buffer_free >= 0)
3024 fprintf (fp, ";tfree:%x", ts->buffer_free);
3025 if (ts->buffer_size >= 0)
3026 fprintf (fp, ";tsize:%x", ts->buffer_size);
3027 if (ts->disconnected_tracing)
3028 fprintf (fp, ";disconn:%x", ts->disconnected_tracing);
3029 if (ts->circular_buffer)
3030 fprintf (fp, ";circular:%x", ts->circular_buffer);
3033 /* Note that we want to upload tracepoints and save those, rather
3034 than simply writing out the local ones, because the user may have
3035 changed tracepoints in GDB in preparation for a future tracing
3036 run, or maybe just mass-deleted all types of breakpoints as part
3037 of cleaning up. So as not to contaminate the session, leave the
3038 data in its uploaded form, don't make into real tracepoints. */
3040 /* Get trace state variables first, they may be checked when parsing
3041 uploaded commands. */
3043 target_upload_trace_state_variables (&uploaded_tsvs);
3045 for (utsv = uploaded_tsvs; utsv; utsv = utsv->next)
3051 buf = (char *) xmalloc (strlen (utsv->name) * 2 + 1);
3052 bin2hex ((gdb_byte *) (utsv->name), buf, 0);
3055 fprintf (fp, "tsv %x:%s:%x:%s\n",
3056 utsv->number, phex_nz (utsv->initial_value, 8),
3057 utsv->builtin, buf);
3063 free_uploaded_tsvs (&uploaded_tsvs);
3065 target_upload_tracepoints (&uploaded_tps);
3067 for (utp = uploaded_tps; utp; utp = utp->next)
3068 target_get_tracepoint_status (NULL, utp);
3070 for (utp = uploaded_tps; utp; utp = utp->next)
3072 fprintf (fp, "tp T%x:%s:%c:%x:%x",
3073 utp->number, phex_nz (utp->addr, sizeof (utp->addr)),
3074 (utp->enabled ? 'E' : 'D'), utp->step, utp->pass);
3075 if (utp->type == bp_fast_tracepoint)
3076 fprintf (fp, ":F%x", utp->orig_size);
3078 fprintf (fp, ":X%x,%s", (unsigned int) strlen (utp->cond) / 2,
3081 for (a = 0; VEC_iterate (char_ptr, utp->actions, a, act); ++a)
3082 fprintf (fp, "tp A%x:%s:%s\n",
3083 utp->number, phex_nz (utp->addr, sizeof (utp->addr)), act);
3084 for (a = 0; VEC_iterate (char_ptr, utp->step_actions, a, act); ++a)
3085 fprintf (fp, "tp S%x:%s:%s\n",
3086 utp->number, phex_nz (utp->addr, sizeof (utp->addr)), act);
3089 encode_source_string (utp->number, utp->addr,
3090 "at", utp->at_string, buf, MAX_TRACE_UPLOAD);
3091 fprintf (fp, "tp Z%s\n", buf);
3093 if (utp->cond_string)
3095 encode_source_string (utp->number, utp->addr,
3096 "cond", utp->cond_string,
3097 buf, MAX_TRACE_UPLOAD);
3098 fprintf (fp, "tp Z%s\n", buf);
3100 for (a = 0; VEC_iterate (char_ptr, utp->cmd_strings, a, act); ++a)
3102 encode_source_string (utp->number, utp->addr, "cmd", act,
3103 buf, MAX_TRACE_UPLOAD);
3104 fprintf (fp, "tp Z%s\n", buf);
3106 fprintf (fp, "tp V%x:%s:%x:%s\n",
3107 utp->number, phex_nz (utp->addr, sizeof (utp->addr)),
3109 phex_nz (utp->traceframe_usage,
3110 sizeof (utp->traceframe_usage)));
3113 free_uploaded_tps (&uploaded_tps);
3115 /* Mark the end of the definition section. */
3118 /* Get and write the trace data proper. We ask for big blocks, in
3119 the hopes of efficiency, but will take less if the target has
3120 packet size limitations or some such. */
3123 gotten = target_get_raw_trace_data (buf, offset, MAX_TRACE_UPLOAD);
3125 error (_("Failure to get requested trace buffer data"));
3126 /* No more data is forthcoming, we're done. */
3129 written = fwrite (buf, gotten, 1, fp);
3131 perror_with_name (pathname);
3135 /* Mark the end of trace data. (We know that gotten is 0 at this point.) */
3136 written = fwrite (&gotten, 4, 1, fp);
3138 perror_with_name (pathname);
3140 do_cleanups (cleanup);
3144 trace_save_command (char *args, int from_tty)
3146 int target_does_save = 0;
3148 char *filename = NULL;
3149 struct cleanup *back_to;
3152 error_no_arg (_("file in which to save trace data"));
3154 argv = gdb_buildargv (args);
3155 back_to = make_cleanup_freeargv (argv);
3157 for (; *argv; ++argv)
3159 if (strcmp (*argv, "-r") == 0)
3160 target_does_save = 1;
3161 else if (**argv == '-')
3162 error (_("unknown option `%s'"), *argv);
3168 error_no_arg (_("file in which to save trace data"));
3170 trace_save (filename, target_does_save);
3173 printf_filtered (_("Trace data saved to file '%s'.\n"), filename);
3175 do_cleanups (back_to);
3178 /* Tell the target what to do with an ongoing tracing run if GDB
3179 disconnects for some reason. */
3182 set_disconnected_tracing (char *args, int from_tty,
3183 struct cmd_list_element *c)
3185 target_set_disconnected_tracing (disconnected_tracing);
3189 set_circular_trace_buffer (char *args, int from_tty,
3190 struct cmd_list_element *c)
3192 target_set_circular_trace_buffer (circular_trace_buffer);
3196 set_trace_user (char *args, int from_tty,
3197 struct cmd_list_element *c)
3201 ret = target_set_trace_notes (trace_user, NULL, NULL);
3204 warning (_("Target does not support trace notes, user ignored"));
3208 set_trace_notes (char *args, int from_tty,
3209 struct cmd_list_element *c)
3213 ret = target_set_trace_notes (NULL, trace_notes, NULL);
3216 warning (_("Target does not support trace notes, note ignored"));
3220 set_trace_stop_notes (char *args, int from_tty,
3221 struct cmd_list_element *c)
3225 ret = target_set_trace_notes (NULL, NULL, trace_stop_notes);
3228 warning (_("Target does not support trace notes, stop note ignored"));
3231 /* Convert the memory pointed to by mem into hex, placing result in buf.
3232 * Return a pointer to the last char put in buf (null)
3233 * "stolen" from sparc-stub.c
3236 static const char hexchars[] = "0123456789abcdef";
3239 mem2hex (gdb_byte *mem, char *buf, int count)
3247 *buf++ = hexchars[ch >> 4];
3248 *buf++ = hexchars[ch & 0xf];
3257 get_traceframe_number (void)
3259 return traceframe_number;
3262 /* Make the traceframe NUM be the current trace frame. Does nothing
3263 if NUM is already current. */
3266 set_current_traceframe (int num)
3270 if (traceframe_number == num)
3272 /* Nothing to do. */
3276 newnum = target_trace_find (tfind_number, num, 0, 0, NULL);
3279 warning (_("could not change traceframe"));
3281 traceframe_number = newnum;
3283 /* Changing the traceframe changes our view of registers and of the
3285 registers_changed ();
3287 clear_traceframe_info ();
3290 /* Make the traceframe NUM be the current trace frame, and do nothing
3294 set_traceframe_number (int num)
3296 traceframe_number = num;
3299 /* A cleanup used when switching away and back from tfind mode. */
3301 struct current_traceframe_cleanup
3303 /* The traceframe we were inspecting. */
3304 int traceframe_number;
3308 do_restore_current_traceframe_cleanup (void *arg)
3310 struct current_traceframe_cleanup *old = arg;
3312 set_current_traceframe (old->traceframe_number);
3316 restore_current_traceframe_cleanup_dtor (void *arg)
3318 struct current_traceframe_cleanup *old = arg;
3324 make_cleanup_restore_current_traceframe (void)
3326 struct current_traceframe_cleanup *old;
3328 old = xmalloc (sizeof (struct current_traceframe_cleanup));
3329 old->traceframe_number = traceframe_number;
3331 return make_cleanup_dtor (do_restore_current_traceframe_cleanup, old,
3332 restore_current_traceframe_cleanup_dtor);
3336 make_cleanup_restore_traceframe_number (void)
3338 return make_cleanup_restore_integer (&traceframe_number);
3341 /* Given a number and address, return an uploaded tracepoint with that
3342 number, creating if necessary. */
3344 struct uploaded_tp *
3345 get_uploaded_tp (int num, ULONGEST addr, struct uploaded_tp **utpp)
3347 struct uploaded_tp *utp;
3349 for (utp = *utpp; utp; utp = utp->next)
3350 if (utp->number == num && utp->addr == addr)
3352 utp = (struct uploaded_tp *) xmalloc (sizeof (struct uploaded_tp));
3353 memset (utp, 0, sizeof (struct uploaded_tp));
3356 utp->actions = NULL;
3357 utp->step_actions = NULL;
3358 utp->cmd_strings = NULL;
3365 free_uploaded_tps (struct uploaded_tp **utpp)
3367 struct uploaded_tp *next_one;
3371 next_one = (*utpp)->next;
3377 /* Given a number and address, return an uploaded tracepoint with that
3378 number, creating if necessary. */
3380 static struct uploaded_tsv *
3381 get_uploaded_tsv (int num, struct uploaded_tsv **utsvp)
3383 struct uploaded_tsv *utsv;
3385 for (utsv = *utsvp; utsv; utsv = utsv->next)
3386 if (utsv->number == num)
3388 utsv = (struct uploaded_tsv *) xmalloc (sizeof (struct uploaded_tsv));
3389 memset (utsv, 0, sizeof (struct uploaded_tsv));
3391 utsv->next = *utsvp;
3397 free_uploaded_tsvs (struct uploaded_tsv **utsvp)
3399 struct uploaded_tsv *next_one;
3403 next_one = (*utsvp)->next;
3409 /* FIXME this function is heuristic and will miss the cases where the
3410 conditional is semantically identical but differs in whitespace,
3411 such as "x == 0" vs "x==0". */
3414 cond_string_is_same (char *str1, char *str2)
3416 if (str1 == NULL || str2 == NULL)
3417 return (str1 == str2);
3419 return (strcmp (str1, str2) == 0);
3422 /* Look for an existing tracepoint that seems similar enough to the
3423 uploaded one. Enablement isn't compared, because the user can
3424 toggle that freely, and may have done so in anticipation of the
3425 next trace run. Return the location of matched tracepoint. */
3427 static struct bp_location *
3428 find_matching_tracepoint_location (struct uploaded_tp *utp)
3430 VEC(breakpoint_p) *tp_vec = all_tracepoints ();
3432 struct breakpoint *b;
3433 struct bp_location *loc;
3435 for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, b); ix++)
3437 struct tracepoint *t = (struct tracepoint *) b;
3439 if (b->type == utp->type
3440 && t->step_count == utp->step
3441 && t->pass_count == utp->pass
3442 && cond_string_is_same (t->base.cond_string, utp->cond_string)
3443 /* FIXME also test actions. */
3446 /* Scan the locations for an address match. */
3447 for (loc = b->loc; loc; loc = loc->next)
3449 if (loc->address == utp->addr)
3457 /* Given a list of tracepoints uploaded from a target, attempt to
3458 match them up with existing tracepoints, and create new ones if not
3462 merge_uploaded_tracepoints (struct uploaded_tp **uploaded_tps)
3464 struct uploaded_tp *utp;
3466 /* Look for GDB tracepoints that match up with our uploaded versions. */
3467 for (utp = *uploaded_tps; utp; utp = utp->next)
3469 struct bp_location *loc;
3470 struct tracepoint *t;
3472 loc = find_matching_tracepoint_location (utp);
3475 /* Mark this location as already inserted. */
3477 t = (struct tracepoint *) loc->owner;
3478 printf_filtered (_("Assuming tracepoint %d is same "
3479 "as target's tracepoint %d at %s.\n"),
3480 loc->owner->number, utp->number,
3481 paddress (loc->gdbarch, utp->addr));
3485 t = create_tracepoint_from_upload (utp);
3487 printf_filtered (_("Created tracepoint %d for "
3488 "target's tracepoint %d at %s.\n"),
3489 t->base.number, utp->number,
3490 paddress (get_current_arch (), utp->addr));
3492 printf_filtered (_("Failed to create tracepoint for target's "
3493 "tracepoint %d at %s, skipping it.\n"),
3495 paddress (get_current_arch (), utp->addr));
3497 /* Whether found or created, record the number used by the
3498 target, to help with mapping target tracepoints back to their
3499 counterparts here. */
3501 t->number_on_target = utp->number;
3504 free_uploaded_tps (uploaded_tps);
3507 /* Trace state variables don't have much to identify them beyond their
3508 name, so just use that to detect matches. */
3510 static struct trace_state_variable *
3511 find_matching_tsv (struct uploaded_tsv *utsv)
3516 return find_trace_state_variable (utsv->name);
3519 static struct trace_state_variable *
3520 create_tsv_from_upload (struct uploaded_tsv *utsv)
3522 const char *namebase;
3525 struct trace_state_variable *tsv;
3526 struct cleanup *old_chain;
3530 namebase = utsv->name;
3531 buf = xstrprintf ("%s", namebase);
3536 buf = xstrprintf ("%s_%d", namebase, try_num++);
3539 /* Fish for a name that is not in use. */
3540 /* (should check against all internal vars?) */
3541 while (find_trace_state_variable (buf))
3544 buf = xstrprintf ("%s_%d", namebase, try_num++);
3547 old_chain = make_cleanup (xfree, buf);
3549 /* We have an available name, create the variable. */
3550 tsv = create_trace_state_variable (buf);
3551 tsv->initial_value = utsv->initial_value;
3552 tsv->builtin = utsv->builtin;
3554 do_cleanups (old_chain);
3559 /* Given a list of uploaded trace state variables, try to match them
3560 up with existing variables, or create additional ones. */
3563 merge_uploaded_trace_state_variables (struct uploaded_tsv **uploaded_tsvs)
3566 struct uploaded_tsv *utsv;
3567 struct trace_state_variable *tsv;
3570 /* Most likely some numbers will have to be reassigned as part of
3571 the merge, so clear them all in anticipation. */
3572 for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix)
3575 for (utsv = *uploaded_tsvs; utsv; utsv = utsv->next)
3577 tsv = find_matching_tsv (utsv);
3581 printf_filtered (_("Assuming trace state variable $%s "
3582 "is same as target's variable %d.\n"),
3583 tsv->name, utsv->number);
3587 tsv = create_tsv_from_upload (utsv);
3589 printf_filtered (_("Created trace state variable "
3590 "$%s for target's variable %d.\n"),
3591 tsv->name, utsv->number);
3593 /* Give precedence to numberings that come from the target. */
3595 tsv->number = utsv->number;
3598 /* Renumber everything that didn't get a target-assigned number. */
3600 for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix)
3601 if (tsv->number > highest)
3602 highest = tsv->number;
3605 for (ix = 0; VEC_iterate (tsv_s, tvariables, ix, tsv); ++ix)
3606 if (tsv->number == 0)
3607 tsv->number = highest++;
3609 free_uploaded_tsvs (uploaded_tsvs);
3612 /* target tfile command */
3614 struct target_ops tfile_ops;
3616 /* Fill in tfile_ops with its defined operations and properties. */
3618 #define TRACE_HEADER_SIZE 8
3620 char *trace_filename;
3622 off_t trace_frames_offset;
3624 int cur_traceframe_number;
3626 int trace_regblock_size;
3628 static void tfile_interp_line (char *line,
3629 struct uploaded_tp **utpp,
3630 struct uploaded_tsv **utsvp);
3632 /* Read SIZE bytes into READBUF from the trace frame, starting at
3633 TRACE_FD's current position. Note that this call `read'
3634 underneath, hence it advances the file's seek position. Throws an
3635 error if the `read' syscall fails, or less than SIZE bytes are
3639 tfile_read (gdb_byte *readbuf, int size)
3643 gotten = read (trace_fd, readbuf, size);
3645 perror_with_name (trace_filename);
3646 else if (gotten < size)
3647 error (_("Premature end of file while reading trace file"));
3651 tfile_open (char *filename, int from_tty)
3653 volatile struct gdb_exception ex;
3655 struct cleanup *old_chain;
3658 char header[TRACE_HEADER_SIZE];
3659 char linebuf[1000]; /* Should be max remote packet size or so. */
3662 struct trace_status *ts;
3663 struct uploaded_tp *uploaded_tps = NULL;
3664 struct uploaded_tsv *uploaded_tsvs = NULL;
3666 target_preopen (from_tty);
3668 error (_("No trace file specified."));
3670 filename = tilde_expand (filename);
3671 if (!IS_ABSOLUTE_PATH(filename))
3673 temp = concat (current_directory, "/", filename, (char *) NULL);
3678 old_chain = make_cleanup (xfree, filename);
3680 flags = O_BINARY | O_LARGEFILE;
3682 scratch_chan = open (filename, flags, 0);
3683 if (scratch_chan < 0)
3684 perror_with_name (filename);
3686 /* Looks semi-reasonable. Toss the old trace file and work on the new. */
3688 discard_cleanups (old_chain); /* Don't free filename any more. */
3689 unpush_target (&tfile_ops);
3691 trace_filename = xstrdup (filename);
3692 trace_fd = scratch_chan;
3695 /* Read the file header and test for validity. */
3696 tfile_read ((gdb_byte *) &header, TRACE_HEADER_SIZE);
3698 bytes += TRACE_HEADER_SIZE;
3699 if (!(header[0] == 0x7f
3700 && (strncmp (header + 1, "TRACE0\n", 7) == 0)))
3701 error (_("File is not a valid trace file."));
3703 push_target (&tfile_ops);
3705 trace_regblock_size = 0;
3706 ts = current_trace_status ();
3707 /* We know we're working with a file. */
3709 /* Set defaults in case there is no status line. */
3710 ts->running_known = 0;
3711 ts->stop_reason = trace_stop_reason_unknown;
3712 ts->traceframe_count = -1;
3713 ts->buffer_free = 0;
3714 ts->disconnected_tracing = 0;
3715 ts->circular_buffer = 0;
3717 cur_traceframe_number = -1;
3719 TRY_CATCH (ex, RETURN_MASK_ALL)
3721 /* Read through a section of newline-terminated lines that
3722 define things like tracepoints. */
3726 tfile_read (&byte, 1);
3731 /* Empty line marks end of the definition section. */
3736 tfile_interp_line (linebuf, &uploaded_tps, &uploaded_tsvs);
3739 linebuf[i++] = byte;
3741 error (_("Excessively long lines in trace file"));
3744 /* Record the starting offset of the binary trace data. */
3745 trace_frames_offset = bytes;
3747 /* If we don't have a blocksize, we can't interpret the
3749 if (trace_regblock_size == 0)
3750 error (_("No register block size recorded in trace file"));
3754 /* Pop the partially set up target. */
3756 throw_exception (ex);
3759 inferior_appeared (current_inferior (), TFILE_PID);
3760 inferior_ptid = pid_to_ptid (TFILE_PID);
3761 add_thread_silent (inferior_ptid);
3763 if (ts->traceframe_count <= 0)
3764 warning (_("No traceframes present in this file."));
3766 /* Add the file's tracepoints and variables into the current mix. */
3768 /* Get trace state variables first, they may be checked when parsing
3769 uploaded commands. */
3770 merge_uploaded_trace_state_variables (&uploaded_tsvs);
3772 merge_uploaded_tracepoints (&uploaded_tps);
3774 post_create_inferior (&tfile_ops, from_tty);
3777 /* Interpret the given line from the definitions part of the trace
3781 tfile_interp_line (char *line,
3782 struct uploaded_tp **utpp, struct uploaded_tsv **utsvp)
3786 if (strncmp (p, "R ", strlen ("R ")) == 0)
3789 trace_regblock_size = strtol (p, &p, 16);
3791 else if (strncmp (p, "status ", strlen ("status ")) == 0)
3793 p += strlen ("status ");
3794 parse_trace_status (p, current_trace_status ());
3796 else if (strncmp (p, "tp ", strlen ("tp ")) == 0)
3798 p += strlen ("tp ");
3799 parse_tracepoint_definition (p, utpp);
3801 else if (strncmp (p, "tsv ", strlen ("tsv ")) == 0)
3803 p += strlen ("tsv ");
3804 parse_tsv_definition (p, utsvp);
3807 warning (_("Ignoring trace file definition \"%s\""), line);
3810 /* Parse the part of trace status syntax that is shared between
3811 the remote protocol and the trace file reader. */
3814 parse_trace_status (char *line, struct trace_status *ts)
3816 char *p = line, *p1, *p2, *p3, *p_temp;
3820 ts->running_known = 1;
3821 ts->running = (*p++ == '1');
3822 ts->stop_reason = trace_stop_reason_unknown;
3823 xfree (ts->stop_desc);
3824 ts->stop_desc = NULL;
3825 ts->traceframe_count = -1;
3826 ts->traceframes_created = -1;
3827 ts->buffer_free = -1;
3828 ts->buffer_size = -1;
3829 ts->disconnected_tracing = 0;
3830 ts->circular_buffer = 0;
3831 xfree (ts->user_name);
3832 ts->user_name = NULL;
3835 ts->start_time = ts->stop_time = 0;
3839 p1 = strchr (p, ':');
3841 error (_("Malformed trace status, at %s\n\
3842 Status line: '%s'\n"), p, line);
3843 p3 = strchr (p, ';');
3845 p3 = p + strlen (p);
3846 if (strncmp (p, stop_reason_names[trace_buffer_full], p1 - p) == 0)
3848 p = unpack_varlen_hex (++p1, &val);
3849 ts->stop_reason = trace_buffer_full;
3851 else if (strncmp (p, stop_reason_names[trace_never_run], p1 - p) == 0)
3853 p = unpack_varlen_hex (++p1, &val);
3854 ts->stop_reason = trace_never_run;
3856 else if (strncmp (p, stop_reason_names[tracepoint_passcount],
3859 p = unpack_varlen_hex (++p1, &val);
3860 ts->stop_reason = tracepoint_passcount;
3861 ts->stopping_tracepoint = val;
3863 else if (strncmp (p, stop_reason_names[tstop_command], p1 - p) == 0)
3865 p2 = strchr (++p1, ':');
3873 ts->stop_desc = xmalloc (strlen (line));
3874 end = hex2bin (p1, ts->stop_desc, (p2 - p1) / 2);
3875 ts->stop_desc[end] = '\0';
3878 ts->stop_desc = xstrdup ("");
3880 p = unpack_varlen_hex (++p2, &val);
3881 ts->stop_reason = tstop_command;
3883 else if (strncmp (p, stop_reason_names[trace_disconnected], p1 - p) == 0)
3885 p = unpack_varlen_hex (++p1, &val);
3886 ts->stop_reason = trace_disconnected;
3888 else if (strncmp (p, stop_reason_names[tracepoint_error], p1 - p) == 0)
3890 p2 = strchr (++p1, ':');
3893 ts->stop_desc = xmalloc ((p2 - p1) / 2 + 1);
3894 end = hex2bin (p1, ts->stop_desc, (p2 - p1) / 2);
3895 ts->stop_desc[end] = '\0';
3898 ts->stop_desc = xstrdup ("");
3900 p = unpack_varlen_hex (++p2, &val);
3901 ts->stopping_tracepoint = val;
3902 ts->stop_reason = tracepoint_error;
3904 else if (strncmp (p, "tframes", p1 - p) == 0)
3906 p = unpack_varlen_hex (++p1, &val);
3907 ts->traceframe_count = val;
3909 else if (strncmp (p, "tcreated", p1 - p) == 0)
3911 p = unpack_varlen_hex (++p1, &val);
3912 ts->traceframes_created = val;
3914 else if (strncmp (p, "tfree", p1 - p) == 0)
3916 p = unpack_varlen_hex (++p1, &val);
3917 ts->buffer_free = val;
3919 else if (strncmp (p, "tsize", p1 - p) == 0)
3921 p = unpack_varlen_hex (++p1, &val);
3922 ts->buffer_size = val;
3924 else if (strncmp (p, "disconn", p1 - p) == 0)
3926 p = unpack_varlen_hex (++p1, &val);
3927 ts->disconnected_tracing = val;
3929 else if (strncmp (p, "circular", p1 - p) == 0)
3931 p = unpack_varlen_hex (++p1, &val);
3932 ts->circular_buffer = val;
3934 else if (strncmp (p, "starttime", p1 - p) == 0)
3936 p = unpack_varlen_hex (++p1, &val);
3937 ts->start_time = val;
3939 else if (strncmp (p, "stoptime", p1 - p) == 0)
3941 p = unpack_varlen_hex (++p1, &val);
3942 ts->stop_time = val;
3944 else if (strncmp (p, "username", p1 - p) == 0)
3947 ts->user_name = xmalloc (strlen (p) / 2);
3948 end = hex2bin (p1, ts->user_name, (p3 - p1) / 2);
3949 ts->user_name[end] = '\0';
3952 else if (strncmp (p, "notes", p1 - p) == 0)
3955 ts->notes = xmalloc (strlen (p) / 2);
3956 end = hex2bin (p1, ts->notes, (p3 - p1) / 2);
3957 ts->notes[end] = '\0';
3962 /* Silently skip unknown optional info. */
3963 p_temp = strchr (p1 + 1, ';');
3967 /* Must be at the end. */
3974 parse_tracepoint_status (char *p, struct breakpoint *bp,
3975 struct uploaded_tp *utp)
3978 struct tracepoint *tp = (struct tracepoint *) bp;
3980 p = unpack_varlen_hex (p, &uval);
3982 tp->base.hit_count += uval;
3984 utp->hit_count += uval;
3985 p = unpack_varlen_hex (p + 1, &uval);
3987 tp->traceframe_usage += uval;
3989 utp->traceframe_usage += uval;
3990 /* Ignore any extra, allowing for future extensions. */
3993 /* Given a line of text defining a part of a tracepoint, parse it into
3994 an "uploaded tracepoint". */
3997 parse_tracepoint_definition (char *line, struct uploaded_tp **utpp)
4001 ULONGEST num, addr, step, pass, orig_size, xlen, start;
4004 char *cond, *srctype, *buf;
4005 struct uploaded_tp *utp = NULL;
4008 /* Both tracepoint and action definitions start with the same number
4009 and address sequence. */
4011 p = unpack_varlen_hex (p, &num);
4012 p++; /* skip a colon */
4013 p = unpack_varlen_hex (p, &addr);
4014 p++; /* skip a colon */
4017 enabled = (*p++ == 'E');
4018 p++; /* skip a colon */
4019 p = unpack_varlen_hex (p, &step);
4020 p++; /* skip a colon */
4021 p = unpack_varlen_hex (p, &pass);
4022 type = bp_tracepoint;
4024 /* Thumb through optional fields. */
4027 p++; /* skip a colon */
4030 type = bp_fast_tracepoint;
4032 p = unpack_varlen_hex (p, &orig_size);
4036 type = bp_static_tracepoint;
4042 p = unpack_varlen_hex (p, &xlen);
4043 p++; /* skip a comma */
4044 cond = (char *) xmalloc (2 * xlen + 1);
4045 strncpy (cond, p, 2 * xlen);
4046 cond[2 * xlen] = '\0';
4050 warning (_("Unrecognized char '%c' in tracepoint "
4051 "definition, skipping rest"), *p);
4053 utp = get_uploaded_tp (num, addr, utpp);
4055 utp->enabled = enabled;
4060 else if (piece == 'A')
4062 utp = get_uploaded_tp (num, addr, utpp);
4063 VEC_safe_push (char_ptr, utp->actions, xstrdup (p));
4065 else if (piece == 'S')
4067 utp = get_uploaded_tp (num, addr, utpp);
4068 VEC_safe_push (char_ptr, utp->step_actions, xstrdup (p));
4070 else if (piece == 'Z')
4072 /* Parse a chunk of source form definition. */
4073 utp = get_uploaded_tp (num, addr, utpp);
4075 p = strchr (p, ':');
4076 p++; /* skip a colon */
4077 p = unpack_varlen_hex (p, &start);
4078 p++; /* skip a colon */
4079 p = unpack_varlen_hex (p, &xlen);
4080 p++; /* skip a colon */
4082 buf = alloca (strlen (line));
4084 end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2);
4087 if (strncmp (srctype, "at:", strlen ("at:")) == 0)
4088 utp->at_string = xstrdup (buf);
4089 else if (strncmp (srctype, "cond:", strlen ("cond:")) == 0)
4090 utp->cond_string = xstrdup (buf);
4091 else if (strncmp (srctype, "cmd:", strlen ("cmd:")) == 0)
4092 VEC_safe_push (char_ptr, utp->cmd_strings, xstrdup (buf));
4094 else if (piece == 'V')
4096 utp = get_uploaded_tp (num, addr, utpp);
4098 parse_tracepoint_status (p, NULL, utp);
4102 /* Don't error out, the target might be sending us optional
4103 info that we don't care about. */
4104 warning (_("Unrecognized tracepoint piece '%c', ignoring"), piece);
4108 /* Convert a textual description of a trace state variable into an
4112 parse_tsv_definition (char *line, struct uploaded_tsv **utsvp)
4115 ULONGEST num, initval, builtin;
4117 struct uploaded_tsv *utsv = NULL;
4119 buf = alloca (strlen (line));
4122 p = unpack_varlen_hex (p, &num);
4123 p++; /* skip a colon */
4124 p = unpack_varlen_hex (p, &initval);
4125 p++; /* skip a colon */
4126 p = unpack_varlen_hex (p, &builtin);
4127 p++; /* skip a colon */
4128 end = hex2bin (p, (gdb_byte *) buf, strlen (p) / 2);
4131 utsv = get_uploaded_tsv (num, utsvp);
4132 utsv->initial_value = initval;
4133 utsv->builtin = builtin;
4134 utsv->name = xstrdup (buf);
4137 /* Close the trace file and generally clean up. */
4140 tfile_close (int quitting)
4147 pid = ptid_get_pid (inferior_ptid);
4148 inferior_ptid = null_ptid; /* Avoid confusion from thread stuff. */
4149 exit_inferior_silent (pid);
4153 xfree (trace_filename);
4154 trace_filename = NULL;
4158 tfile_files_info (struct target_ops *t)
4160 /* (it would be useful to mention the name of the file). */
4161 printf_filtered ("Looking at a trace file.\n");
4164 /* The trace status for a file is that tracing can never be run. */
4167 tfile_get_trace_status (struct trace_status *ts)
4169 /* Other bits of trace status were collected as part of opening the
4170 trace files, so nothing to do here. */
4176 tfile_get_tracepoint_status (struct breakpoint *tp, struct uploaded_tp *utp)
4178 /* Other bits of trace status were collected as part of opening the
4179 trace files, so nothing to do here. */
4182 /* Given the position of a traceframe in the file, figure out what
4183 address the frame was collected at. This would normally be the
4184 value of a collected PC register, but if not available, we
4188 tfile_get_traceframe_address (off_t tframe_offset)
4192 struct tracepoint *tp;
4193 off_t saved_offset = cur_offset;
4195 /* FIXME dig pc out of collected registers. */
4197 /* Fall back to using tracepoint address. */
4198 lseek (trace_fd, tframe_offset, SEEK_SET);
4199 tfile_read ((gdb_byte *) &tpnum, 2);
4200 tpnum = (short) extract_signed_integer ((gdb_byte *) &tpnum, 2,
4204 tp = get_tracepoint_by_number_on_target (tpnum);
4205 /* FIXME this is a poor heuristic if multiple locations. */
4206 if (tp && tp->base.loc)
4207 addr = tp->base.loc->address;
4209 /* Restore our seek position. */
4210 cur_offset = saved_offset;
4211 lseek (trace_fd, cur_offset, SEEK_SET);
4215 /* Make tfile's selected traceframe match GDB's selected
4219 set_tfile_traceframe (void)
4223 if (cur_traceframe_number == get_traceframe_number ())
4226 /* Avoid recursion, tfile_trace_find calls us again. */
4227 cur_traceframe_number = get_traceframe_number ();
4229 newnum = target_trace_find (tfind_number,
4230 get_traceframe_number (), 0, 0, NULL);
4232 /* Should not happen. If it does, all bets are off. */
4233 if (newnum != get_traceframe_number ())
4234 warning (_("could not set tfile's traceframe"));
4237 /* Given a type of search and some parameters, scan the collection of
4238 traceframes in the file looking for a match. When found, return
4239 both the traceframe and tracepoint number, otherwise -1 for
4243 tfile_trace_find (enum trace_find_type type, int num,
4244 ULONGEST addr1, ULONGEST addr2, int *tpp)
4247 int tfnum = 0, found = 0;
4248 unsigned int data_size;
4249 struct tracepoint *tp;
4250 off_t offset, tframe_offset;
4253 /* Lookups other than by absolute frame number depend on the current
4254 trace selected, so make sure it is correct on the tfile end
4256 if (type != tfind_number)
4257 set_tfile_traceframe ();
4265 lseek (trace_fd, trace_frames_offset, SEEK_SET);
4266 offset = trace_frames_offset;
4269 tframe_offset = offset;
4270 tfile_read ((gdb_byte *) &tpnum, 2);
4271 tpnum = (short) extract_signed_integer ((gdb_byte *) &tpnum, 2,
4277 tfile_read ((gdb_byte *) &data_size, 4);
4278 data_size = (unsigned int) extract_unsigned_integer
4279 ((gdb_byte *) &data_size, 4,
4280 gdbarch_byte_order (target_gdbarch));
4289 tfaddr = tfile_get_traceframe_address (tframe_offset);
4290 if (tfaddr == addr1)
4294 tp = get_tracepoint (num);
4295 if (tp && tpnum == tp->number_on_target)
4299 tfaddr = tfile_get_traceframe_address (tframe_offset);
4300 if (addr1 <= tfaddr && tfaddr <= addr2)
4304 tfaddr = tfile_get_traceframe_address (tframe_offset);
4305 if (!(addr1 <= tfaddr && tfaddr <= addr2))
4309 internal_error (__FILE__, __LINE__, _("unknown tfind type"));
4315 cur_offset = offset;
4316 cur_data_size = data_size;
4317 cur_traceframe_number = tfnum;
4320 /* Skip past the traceframe's data. */
4321 lseek (trace_fd, data_size, SEEK_CUR);
4322 offset += data_size;
4323 /* Update our own count of traceframes. */
4326 /* Did not find what we were looking for. */
4332 /* Prototype of the callback passed to tframe_walk_blocks. */
4333 typedef int (*walk_blocks_callback_func) (char blocktype, void *data);
4335 /* Callback for traceframe_walk_blocks, used to find a given block
4336 type in a traceframe. */
4339 match_blocktype (char blocktype, void *data)
4341 char *wantedp = data;
4343 if (*wantedp == blocktype)
4349 /* Walk over all traceframe block starting at POS offset from
4350 CUR_OFFSET, and call CALLBACK for each block found, passing in DATA
4351 unmodified. If CALLBACK returns true, this returns the position in
4352 the traceframe where the block is found, relative to the start of
4353 the traceframe (cur_offset). Returns -1 if no callback call
4354 returned true, indicating that all blocks have been walked. */
4357 traceframe_walk_blocks (walk_blocks_callback_func callback,
4358 int pos, void *data)
4360 /* Iterate through a traceframe's blocks, looking for a block of the
4363 lseek (trace_fd, cur_offset + pos, SEEK_SET);
4364 while (pos < cur_data_size)
4366 unsigned short mlen;
4369 tfile_read (&block_type, 1);
4373 if ((*callback) (block_type, data))
4379 lseek (trace_fd, cur_offset + pos + trace_regblock_size, SEEK_SET);
4380 pos += trace_regblock_size;
4383 lseek (trace_fd, cur_offset + pos + 8, SEEK_SET);
4384 tfile_read ((gdb_byte *) &mlen, 2);
4385 mlen = (unsigned short)
4386 extract_unsigned_integer ((gdb_byte *) &mlen, 2,
4389 lseek (trace_fd, mlen, SEEK_CUR);
4390 pos += (8 + 2 + mlen);
4393 lseek (trace_fd, cur_offset + pos + 4 + 8, SEEK_SET);
4397 error (_("Unknown block type '%c' (0x%x) in trace frame"),
4398 block_type, block_type);
4406 /* Convenience wrapper around traceframe_walk_blocks. Looks for the
4407 position offset of a block of type TYPE_WANTED in the current trace
4408 frame, starting at POS. Returns -1 if no such block was found. */
4411 traceframe_find_block_type (char type_wanted, int pos)
4413 return traceframe_walk_blocks (match_blocktype, pos, &type_wanted);
4416 /* Look for a block of saved registers in the traceframe, and get the
4417 requested register from it. */
4420 tfile_fetch_registers (struct target_ops *ops,
4421 struct regcache *regcache, int regno)
4423 struct gdbarch *gdbarch = get_regcache_arch (regcache);
4424 int offset, regn, regsize, pc_regno;
4427 /* An uninitialized reg size says we're not going to be
4428 successful at getting register blocks. */
4429 if (!trace_regblock_size)
4432 set_tfile_traceframe ();
4434 regs = alloca (trace_regblock_size);
4436 if (traceframe_find_block_type ('R', 0) >= 0)
4438 tfile_read (regs, trace_regblock_size);
4440 /* Assume the block is laid out in GDB register number order,
4441 each register with the size that it has in GDB. */
4443 for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++)
4445 regsize = register_size (gdbarch, regn);
4446 /* Make sure we stay within block bounds. */
4447 if (offset + regsize >= trace_regblock_size)
4449 if (regcache_register_status (regcache, regn) == REG_UNKNOWN)
4453 regcache_raw_supply (regcache, regno, regs + offset);
4456 else if (regno == -1)
4458 regcache_raw_supply (regcache, regn, regs + offset);
4466 /* We get here if no register data has been found. Mark registers
4468 for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++)
4469 regcache_raw_supply (regcache, regn, NULL);
4471 /* We can often usefully guess that the PC is going to be the same
4472 as the address of the tracepoint. */
4473 pc_regno = gdbarch_pc_regnum (gdbarch);
4474 if (pc_regno >= 0 && (regno == -1 || regno == pc_regno))
4476 struct tracepoint *tp = get_tracepoint (tracepoint_number);
4478 if (tp && tp->base.loc)
4480 /* But don't try to guess if tracepoint is multi-location... */
4481 if (tp->base.loc->next)
4483 warning (_("Tracepoint %d has multiple "
4484 "locations, cannot infer $pc"),
4488 /* ... or does while-stepping. */
4489 if (tp->step_count > 0)
4491 warning (_("Tracepoint %d does while-stepping, "
4492 "cannot infer $pc"),
4497 store_unsigned_integer (regs, register_size (gdbarch, pc_regno),
4498 gdbarch_byte_order (gdbarch),
4499 tp->base.loc->address);
4500 regcache_raw_supply (regcache, pc_regno, regs);
4506 tfile_xfer_partial (struct target_ops *ops, enum target_object object,
4507 const char *annex, gdb_byte *readbuf,
4508 const gdb_byte *writebuf, ULONGEST offset, LONGEST len)
4510 /* We're only doing regular memory for now. */
4511 if (object != TARGET_OBJECT_MEMORY)
4514 if (readbuf == NULL)
4515 error (_("tfile_xfer_partial: trace file is read-only"));
4517 set_tfile_traceframe ();
4519 if (traceframe_number != -1)
4523 /* Iterate through the traceframe's blocks, looking for
4525 while ((pos = traceframe_find_block_type ('M', pos)) >= 0)
4527 ULONGEST maddr, amt;
4528 unsigned short mlen;
4529 enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch);
4531 tfile_read ((gdb_byte *) &maddr, 8);
4532 maddr = extract_unsigned_integer ((gdb_byte *) &maddr, 8,
4534 tfile_read ((gdb_byte *) &mlen, 2);
4535 mlen = (unsigned short)
4536 extract_unsigned_integer ((gdb_byte *) &mlen, 2, byte_order);
4538 /* If the block includes the first part of the desired
4539 range, return as much it has; GDB will re-request the
4540 remainder, which might be in a different block of this
4542 if (maddr <= offset && offset < (maddr + mlen))
4544 amt = (maddr + mlen) - offset;
4548 tfile_read (readbuf, amt);
4552 /* Skip over this block. */
4553 pos += (8 + 2 + mlen);
4557 /* It's unduly pedantic to refuse to look at the executable for
4558 read-only pieces; so do the equivalent of readonly regions aka
4560 /* FIXME account for relocation at some point. */
4567 for (s = exec_bfd->sections; s; s = s->next)
4569 if ((s->flags & SEC_LOAD) == 0
4570 || (s->flags & SEC_READONLY) == 0)
4574 size = bfd_get_section_size (s);
4575 if (vma <= offset && offset < (vma + size))
4579 amt = (vma + size) - offset;
4583 amt = bfd_get_section_contents (exec_bfd, s,
4584 readbuf, offset - vma, amt);
4590 /* Indicate failure to find the requested memory block. */
4594 /* Iterate through the blocks of a trace frame, looking for a 'V'
4595 block with a matching tsv number. */
4598 tfile_get_trace_state_variable_value (int tsvnum, LONGEST *val)
4602 set_tfile_traceframe ();
4605 while ((pos = traceframe_find_block_type ('V', pos)) >= 0)
4609 tfile_read ((gdb_byte *) &vnum, 4);
4610 vnum = (int) extract_signed_integer ((gdb_byte *) &vnum, 4,
4615 tfile_read ((gdb_byte *) val, 8);
4616 *val = extract_signed_integer ((gdb_byte *) val, 8,
4624 /* Didn't find anything. */
4629 tfile_has_all_memory (struct target_ops *ops)
4635 tfile_has_memory (struct target_ops *ops)
4641 tfile_has_stack (struct target_ops *ops)
4643 return traceframe_number != -1;
4647 tfile_has_registers (struct target_ops *ops)
4649 return traceframe_number != -1;
4653 tfile_thread_alive (struct target_ops *ops, ptid_t ptid)
4658 /* Callback for traceframe_walk_blocks. Builds a traceframe_info
4659 object for the tfile target's current traceframe. */
4662 build_traceframe_info (char blocktype, void *data)
4664 struct traceframe_info *info = data;
4670 struct mem_range *r;
4672 unsigned short mlen;
4674 tfile_read ((gdb_byte *) &maddr, 8);
4675 tfile_read ((gdb_byte *) &mlen, 2);
4677 r = VEC_safe_push (mem_range_s, info->memory, NULL);
4690 warning (_("Unhandled trace block type (%d) '%c ' "
4691 "while building trace frame info."),
4692 blocktype, blocktype);
4699 static struct traceframe_info *
4700 tfile_traceframe_info (void)
4702 struct traceframe_info *info = XCNEW (struct traceframe_info);
4704 traceframe_walk_blocks (build_traceframe_info, 0, info);
4709 init_tfile_ops (void)
4711 tfile_ops.to_shortname = "tfile";
4712 tfile_ops.to_longname = "Local trace dump file";
4714 = "Use a trace file as a target. Specify the filename of the trace file.";
4715 tfile_ops.to_open = tfile_open;
4716 tfile_ops.to_close = tfile_close;
4717 tfile_ops.to_fetch_registers = tfile_fetch_registers;
4718 tfile_ops.to_xfer_partial = tfile_xfer_partial;
4719 tfile_ops.to_files_info = tfile_files_info;
4720 tfile_ops.to_get_trace_status = tfile_get_trace_status;
4721 tfile_ops.to_get_tracepoint_status = tfile_get_tracepoint_status;
4722 tfile_ops.to_trace_find = tfile_trace_find;
4723 tfile_ops.to_get_trace_state_variable_value
4724 = tfile_get_trace_state_variable_value;
4725 tfile_ops.to_stratum = process_stratum;
4726 tfile_ops.to_has_all_memory = tfile_has_all_memory;
4727 tfile_ops.to_has_memory = tfile_has_memory;
4728 tfile_ops.to_has_stack = tfile_has_stack;
4729 tfile_ops.to_has_registers = tfile_has_registers;
4730 tfile_ops.to_traceframe_info = tfile_traceframe_info;
4731 tfile_ops.to_thread_alive = tfile_thread_alive;
4732 tfile_ops.to_magic = OPS_MAGIC;
4736 free_current_marker (void *arg)
4738 struct static_tracepoint_marker **marker_p = arg;
4740 if (*marker_p != NULL)
4742 release_static_tracepoint_marker (*marker_p);
4749 /* Given a line of text defining a static tracepoint marker, parse it
4750 into a "static tracepoint marker" object. Throws an error is
4751 parsing fails. If PP is non-null, it points to one past the end of
4752 the parsed marker definition. */
4755 parse_static_tracepoint_marker_definition (char *line, char **pp,
4756 struct static_tracepoint_marker *marker)
4763 p = unpack_varlen_hex (p, &addr);
4764 p++; /* skip a colon */
4766 marker->gdbarch = target_gdbarch;
4767 marker->address = (CORE_ADDR) addr;
4769 endp = strchr (p, ':');
4771 error (_("bad marker definition: %s"), line);
4773 marker->str_id = xmalloc (endp - p + 1);
4774 end = hex2bin (p, (gdb_byte *) marker->str_id, (endp - p + 1) / 2);
4775 marker->str_id[end] = '\0';
4778 p++; /* skip a colon */
4780 marker->extra = xmalloc (strlen (p) + 1);
4781 end = hex2bin (p, (gdb_byte *) marker->extra, strlen (p) / 2);
4782 marker->extra[end] = '\0';
4788 /* Release a static tracepoint marker's contents. Note that the
4789 object itself isn't released here. There objects are usually on
4793 release_static_tracepoint_marker (struct static_tracepoint_marker *marker)
4795 xfree (marker->str_id);
4796 marker->str_id = NULL;
4799 /* Print MARKER to gdb_stdout. */
4802 print_one_static_tracepoint_marker (int count,
4803 struct static_tracepoint_marker *marker)
4805 struct command_line *l;
4808 char wrap_indent[80];
4809 char extra_field_indent[80];
4810 struct ui_out *uiout = current_uiout;
4811 struct cleanup *bkpt_chain;
4812 VEC(breakpoint_p) *tracepoints;
4814 struct symtab_and_line sal;
4818 sal.pc = marker->address;
4820 tracepoints = static_tracepoints_here (marker->address);
4822 bkpt_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "marker");
4824 /* A counter field to help readability. This is not a stable
4826 ui_out_field_int (uiout, "count", count);
4828 ui_out_field_string (uiout, "marker-id", marker->str_id);
4830 ui_out_field_fmt (uiout, "enabled", "%c",
4831 !VEC_empty (breakpoint_p, tracepoints) ? 'y' : 'n');
4832 ui_out_spaces (uiout, 2);
4834 strcpy (wrap_indent, " ");
4836 if (gdbarch_addr_bit (marker->gdbarch) <= 32)
4837 strcat (wrap_indent, " ");
4839 strcat (wrap_indent, " ");
4841 strcpy (extra_field_indent, " ");
4843 ui_out_field_core_addr (uiout, "addr", marker->gdbarch, marker->address);
4845 sal = find_pc_line (marker->address, 0);
4846 sym = find_pc_sect_function (marker->address, NULL);
4849 ui_out_text (uiout, "in ");
4850 ui_out_field_string (uiout, "func",
4851 SYMBOL_PRINT_NAME (sym));
4852 ui_out_wrap_hint (uiout, wrap_indent);
4853 ui_out_text (uiout, " at ");
4856 ui_out_field_skip (uiout, "func");
4858 if (sal.symtab != NULL)
4860 ui_out_field_string (uiout, "file", sal.symtab->filename);
4861 ui_out_text (uiout, ":");
4863 if (ui_out_is_mi_like_p (uiout))
4865 char *fullname = symtab_to_fullname (sal.symtab);
4868 ui_out_field_string (uiout, "fullname", fullname);
4871 ui_out_field_skip (uiout, "fullname");
4873 ui_out_field_int (uiout, "line", sal.line);
4877 ui_out_field_skip (uiout, "fullname");
4878 ui_out_field_skip (uiout, "line");
4881 ui_out_text (uiout, "\n");
4882 ui_out_text (uiout, extra_field_indent);
4883 ui_out_text (uiout, _("Data: \""));
4884 ui_out_field_string (uiout, "extra-data", marker->extra);
4885 ui_out_text (uiout, "\"\n");
4887 if (!VEC_empty (breakpoint_p, tracepoints))
4889 struct cleanup *cleanup_chain;
4891 struct breakpoint *b;
4893 cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout,
4896 ui_out_text (uiout, extra_field_indent);
4897 ui_out_text (uiout, _("Probed by static tracepoints: "));
4898 for (ix = 0; VEC_iterate(breakpoint_p, tracepoints, ix, b); ix++)
4901 ui_out_text (uiout, ", ");
4902 ui_out_text (uiout, "#");
4903 ui_out_field_int (uiout, "tracepoint-id", b->number);
4906 do_cleanups (cleanup_chain);
4908 if (ui_out_is_mi_like_p (uiout))
4909 ui_out_field_int (uiout, "number-of-tracepoints",
4910 VEC_length(breakpoint_p, tracepoints));
4912 ui_out_text (uiout, "\n");
4914 VEC_free (breakpoint_p, tracepoints);
4916 do_cleanups (bkpt_chain);
4920 info_static_tracepoint_markers_command (char *arg, int from_tty)
4922 VEC(static_tracepoint_marker_p) *markers;
4923 struct cleanup *old_chain;
4924 struct static_tracepoint_marker *marker;
4925 struct ui_out *uiout = current_uiout;
4928 /* We don't have to check target_can_use_agent and agent's capability on
4929 static tracepoint here, in order to be compatible with older GDBserver.
4930 We don't check USE_AGENT is true or not, because static tracepoints
4931 don't work without in-process agent, so we don't bother users to type
4932 `set agent on' when to use static tracepoint. */
4935 = make_cleanup_ui_out_table_begin_end (uiout, 5, -1,
4936 "StaticTracepointMarkersTable");
4938 ui_out_table_header (uiout, 7, ui_left, "counter", "Cnt");
4940 ui_out_table_header (uiout, 40, ui_left, "marker-id", "ID");
4942 ui_out_table_header (uiout, 3, ui_left, "enabled", "Enb");
4943 if (gdbarch_addr_bit (target_gdbarch) <= 32)
4944 ui_out_table_header (uiout, 10, ui_left, "addr", "Address");
4946 ui_out_table_header (uiout, 18, ui_left, "addr", "Address");
4947 ui_out_table_header (uiout, 40, ui_noalign, "what", "What");
4949 ui_out_table_body (uiout);
4951 markers = target_static_tracepoint_markers_by_strid (NULL);
4952 make_cleanup (VEC_cleanup (static_tracepoint_marker_p), &markers);
4955 VEC_iterate (static_tracepoint_marker_p,
4956 markers, i, marker);
4959 print_one_static_tracepoint_marker (i + 1, marker);
4960 release_static_tracepoint_marker (marker);
4963 do_cleanups (old_chain);
4966 /* The $_sdata convenience variable is a bit special. We don't know
4967 for sure type of the value until we actually have a chance to fetch
4968 the data --- the size of the object depends on what has been
4969 collected. We solve this by making $_sdata be an internalvar that
4970 creates a new value on access. */
4972 /* Return a new value with the correct type for the sdata object of
4973 the current trace frame. Return a void value if there's no object
4976 static struct value *
4977 sdata_make_value (struct gdbarch *gdbarch, struct internalvar *var,
4983 /* We need to read the whole object before we know its size. */
4984 size = target_read_alloc (¤t_target,
4985 TARGET_OBJECT_STATIC_TRACE_DATA,
4992 type = init_vector_type (builtin_type (gdbarch)->builtin_true_char,
4994 v = allocate_value (type);
4995 memcpy (value_contents_raw (v), buf, size);
5000 return allocate_value (builtin_type (gdbarch)->builtin_void);
5003 #if !defined(HAVE_LIBEXPAT)
5005 struct traceframe_info *
5006 parse_traceframe_info (const char *tframe_info)
5008 static int have_warned;
5013 warning (_("Can not parse XML trace frame info; XML support "
5014 "was disabled at compile time"));
5020 #else /* HAVE_LIBEXPAT */
5022 #include "xml-support.h"
5024 /* Handle the start of a <memory> element. */
5027 traceframe_info_start_memory (struct gdb_xml_parser *parser,
5028 const struct gdb_xml_element *element,
5029 void *user_data, VEC(gdb_xml_value_s) *attributes)
5031 struct traceframe_info *info = user_data;
5032 struct mem_range *r = VEC_safe_push (mem_range_s, info->memory, NULL);
5033 ULONGEST *start_p, *length_p;
5035 start_p = xml_find_attribute (attributes, "start")->value;
5036 length_p = xml_find_attribute (attributes, "length")->value;
5038 r->start = *start_p;
5039 r->length = *length_p;
5042 /* Discard the constructed trace frame info (if an error occurs). */
5045 free_result (void *p)
5047 struct traceframe_info *result = p;
5049 free_traceframe_info (result);
5052 /* The allowed elements and attributes for an XML memory map. */
5054 static const struct gdb_xml_attribute memory_attributes[] = {
5055 { "start", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
5056 { "length", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
5057 { NULL, GDB_XML_AF_NONE, NULL, NULL }
5060 static const struct gdb_xml_element traceframe_info_children[] = {
5061 { "memory", memory_attributes, NULL,
5062 GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL,
5063 traceframe_info_start_memory, NULL },
5064 { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
5067 static const struct gdb_xml_element traceframe_info_elements[] = {
5068 { "traceframe-info", NULL, traceframe_info_children, GDB_XML_EF_NONE,
5070 { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
5073 /* Parse a traceframe-info XML document. */
5075 struct traceframe_info *
5076 parse_traceframe_info (const char *tframe_info)
5078 struct traceframe_info *result;
5079 struct cleanup *back_to;
5081 result = XCNEW (struct traceframe_info);
5082 back_to = make_cleanup (free_result, result);
5084 if (gdb_xml_parse_quick (_("trace frame info"),
5085 "traceframe-info.dtd", traceframe_info_elements,
5086 tframe_info, result) == 0)
5088 /* Parsed successfully, keep the result. */
5089 discard_cleanups (back_to);
5094 do_cleanups (back_to);
5098 #endif /* HAVE_LIBEXPAT */
5100 /* Returns the traceframe_info object for the current traceframe.
5101 This is where we avoid re-fetching the object from the target if we
5102 already have it cached. */
5104 static struct traceframe_info *
5105 get_traceframe_info (void)
5107 if (traceframe_info == NULL)
5108 traceframe_info = target_traceframe_info ();
5110 return traceframe_info;
5113 /* If the target supports the query, return in RESULT the set of
5114 collected memory in the current traceframe, found within the LEN
5115 bytes range starting at MEMADDR. Returns true if the target
5116 supports the query, otherwise returns false, and RESULT is left
5120 traceframe_available_memory (VEC(mem_range_s) **result,
5121 CORE_ADDR memaddr, ULONGEST len)
5123 struct traceframe_info *info = get_traceframe_info ();
5127 struct mem_range *r;
5132 for (i = 0; VEC_iterate (mem_range_s, info->memory, i, r); i++)
5133 if (mem_ranges_overlap (r->start, r->length, memaddr, len))
5135 ULONGEST lo1, hi1, lo2, hi2;
5136 struct mem_range *nr;
5139 hi1 = memaddr + len;
5142 hi2 = r->start + r->length;
5144 nr = VEC_safe_push (mem_range_s, *result, NULL);
5146 nr->start = max (lo1, lo2);
5147 nr->length = min (hi1, hi2) - nr->start;
5150 normalize_mem_ranges (*result);
5157 /* Implementation of `sdata' variable. */
5159 static const struct internalvar_funcs sdata_funcs =
5166 /* module initialization */
5168 _initialize_tracepoint (void)
5170 struct cmd_list_element *c;
5172 /* Explicitly create without lookup, since that tries to create a
5173 value with a void typed value, and when we get here, gdbarch
5174 isn't initialized yet. At this point, we're quite sure there
5175 isn't another convenience variable of the same name. */
5176 create_internalvar_type_lazy ("_sdata", &sdata_funcs, NULL);
5178 traceframe_number = -1;
5179 tracepoint_number = -1;
5181 if (tracepoint_list.list == NULL)
5183 tracepoint_list.listsize = 128;
5184 tracepoint_list.list = xmalloc
5185 (tracepoint_list.listsize * sizeof (struct memrange));
5187 if (tracepoint_list.aexpr_list == NULL)
5189 tracepoint_list.aexpr_listsize = 128;
5190 tracepoint_list.aexpr_list = xmalloc
5191 (tracepoint_list.aexpr_listsize * sizeof (struct agent_expr *));
5194 if (stepping_list.list == NULL)
5196 stepping_list.listsize = 128;
5197 stepping_list.list = xmalloc
5198 (stepping_list.listsize * sizeof (struct memrange));
5201 if (stepping_list.aexpr_list == NULL)
5203 stepping_list.aexpr_listsize = 128;
5204 stepping_list.aexpr_list = xmalloc
5205 (stepping_list.aexpr_listsize * sizeof (struct agent_expr *));
5208 add_info ("scope", scope_info,
5209 _("List the variables local to a scope"));
5211 add_cmd ("tracepoints", class_trace, NULL,
5212 _("Tracing of program execution without stopping the program."),
5215 add_com ("tdump", class_trace, trace_dump_command,
5216 _("Print everything collected at the current tracepoint."));
5218 add_com ("tsave", class_trace, trace_save_command, _("\
5219 Save the trace data to a file.\n\
5220 Use the '-r' option to direct the target to save directly to the file,\n\
5221 using its own filesystem."));
5223 c = add_com ("tvariable", class_trace, trace_variable_command,_("\
5224 Define a trace state variable.\n\
5225 Argument is a $-prefixed name, optionally followed\n\
5226 by '=' and an expression that sets the initial value\n\
5227 at the start of tracing."));
5228 set_cmd_completer (c, expression_completer);
5230 add_cmd ("tvariable", class_trace, delete_trace_variable_command, _("\
5231 Delete one or more trace state variables.\n\
5232 Arguments are the names of the variables to delete.\n\
5233 If no arguments are supplied, delete all variables."), &deletelist);
5234 /* FIXME add a trace variable completer. */
5236 add_info ("tvariables", tvariables_info, _("\
5237 Status of trace state variables and their values.\n\
5240 add_info ("static-tracepoint-markers",
5241 info_static_tracepoint_markers_command, _("\
5242 List target static tracepoints markers.\n\
5245 add_prefix_cmd ("tfind", class_trace, trace_find_command, _("\
5246 Select a trace frame;\n\
5247 No argument means forward by one frame; '-' means backward by one frame."),
5248 &tfindlist, "tfind ", 1, &cmdlist);
5250 add_cmd ("outside", class_trace, trace_find_outside_command, _("\
5251 Select a trace frame whose PC is outside the given range (exclusive).\n\
5252 Usage: tfind outside addr1, addr2"),
5255 add_cmd ("range", class_trace, trace_find_range_command, _("\
5256 Select a trace frame whose PC is in the given range (inclusive).\n\
5257 Usage: tfind range addr1,addr2"),
5260 add_cmd ("line", class_trace, trace_find_line_command, _("\
5261 Select a trace frame by source line.\n\
5262 Argument can be a line number (with optional source file),\n\
5263 a function name, or '*' followed by an address.\n\
5264 Default argument is 'the next source line that was traced'."),
5267 add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, _("\
5268 Select a trace frame by tracepoint number.\n\
5269 Default is the tracepoint for the current trace frame."),
5272 add_cmd ("pc", class_trace, trace_find_pc_command, _("\
5273 Select a trace frame by PC.\n\
5274 Default is the current PC, or the PC of the current trace frame."),
5277 add_cmd ("end", class_trace, trace_find_end_command, _("\
5278 Synonym for 'none'.\n\
5279 De-select any trace frame and resume 'live' debugging."),
5282 add_cmd ("none", class_trace, trace_find_none_command,
5283 _("De-select any trace frame and resume 'live' debugging."),
5286 add_cmd ("start", class_trace, trace_find_start_command,
5287 _("Select the first trace frame in the trace buffer."),
5290 add_com ("tstatus", class_trace, trace_status_command,
5291 _("Display the status of the current trace data collection."));
5293 add_com ("tstop", class_trace, trace_stop_command, _("\
5294 Stop trace data collection.\n\
5295 Usage: tstop [ <notes> ... ]\n\
5296 Any arguments supplied are recorded with the trace as a stop reason and\n\
5297 reported by tstatus (if the target supports trace notes)."));
5299 add_com ("tstart", class_trace, trace_start_command, _("\
5300 Start trace data collection.\n\
5301 Usage: tstart [ <notes> ... ]\n\
5302 Any arguments supplied are recorded with the trace as a note and\n\
5303 reported by tstatus (if the target supports trace notes)."));
5305 add_com ("end", class_trace, end_actions_pseudocommand, _("\
5306 Ends a list of commands or actions.\n\
5307 Several GDB commands allow you to enter a list of commands or actions.\n\
5308 Entering \"end\" on a line by itself is the normal way to terminate\n\
5310 Note: the \"end\" command cannot be used at the gdb prompt."));
5312 add_com ("while-stepping", class_trace, while_stepping_pseudocommand, _("\
5313 Specify single-stepping behavior at a tracepoint.\n\
5314 Argument is number of instructions to trace in single-step mode\n\
5315 following the tracepoint. This command is normally followed by\n\
5316 one or more \"collect\" commands, to specify what to collect\n\
5317 while single-stepping.\n\n\
5318 Note: this command can only be used in a tracepoint \"actions\" list."));
5320 add_com_alias ("ws", "while-stepping", class_alias, 0);
5321 add_com_alias ("stepping", "while-stepping", class_alias, 0);
5323 add_com ("collect", class_trace, collect_pseudocommand, _("\
5324 Specify one or more data items to be collected at a tracepoint.\n\
5325 Accepts a comma-separated list of (one or more) expressions. GDB will\n\
5326 collect all data (variables, registers) referenced by that expression.\n\
5327 Also accepts the following special arguments:\n\
5328 $regs -- all registers.\n\
5329 $args -- all function arguments.\n\
5330 $locals -- all variables local to the block/function scope.\n\
5331 $_sdata -- static tracepoint data (ignored for non-static tracepoints).\n\
5332 Note: this command can only be used in a tracepoint \"actions\" list."));
5334 add_com ("teval", class_trace, teval_pseudocommand, _("\
5335 Specify one or more expressions to be evaluated at a tracepoint.\n\
5336 Accepts a comma-separated list of (one or more) expressions.\n\
5337 The result of each evaluation will be discarded.\n\
5338 Note: this command can only be used in a tracepoint \"actions\" list."));
5340 add_com ("actions", class_trace, trace_actions_command, _("\
5341 Specify the actions to be taken at a tracepoint.\n\
5342 Tracepoint actions may include collecting of specified data,\n\
5343 single-stepping, or enabling/disabling other tracepoints,\n\
5344 depending on target's capabilities."));
5346 default_collect = xstrdup ("");
5347 add_setshow_string_cmd ("default-collect", class_trace,
5348 &default_collect, _("\
5349 Set the list of expressions to collect by default"), _("\
5350 Show the list of expressions to collect by default"), NULL,
5352 &setlist, &showlist);
5354 add_setshow_boolean_cmd ("disconnected-tracing", no_class,
5355 &disconnected_tracing, _("\
5356 Set whether tracing continues after GDB disconnects."), _("\
5357 Show whether tracing continues after GDB disconnects."), _("\
5358 Use this to continue a tracing run even if GDB disconnects\n\
5359 or detaches from the target. You can reconnect later and look at\n\
5360 trace data collected in the meantime."),
5361 set_disconnected_tracing,
5366 add_setshow_boolean_cmd ("circular-trace-buffer", no_class,
5367 &circular_trace_buffer, _("\
5368 Set target's use of circular trace buffer."), _("\
5369 Show target's use of circular trace buffer."), _("\
5370 Use this to make the trace buffer into a circular buffer,\n\
5371 which will discard traceframes (oldest first) instead of filling\n\
5372 up and stopping the trace run."),
5373 set_circular_trace_buffer,
5378 add_setshow_string_cmd ("trace-user", class_trace,
5380 Set the user name to use for current and future trace runs"), _("\
5381 Show the user name to use for current and future trace runs"), NULL,
5382 set_trace_user, NULL,
5383 &setlist, &showlist);
5385 add_setshow_string_cmd ("trace-notes", class_trace,
5387 Set notes string to use for current and future trace runs"), _("\
5388 Show the notes string to use for current and future trace runs"), NULL,
5389 set_trace_notes, NULL,
5390 &setlist, &showlist);
5392 add_setshow_string_cmd ("trace-stop-notes", class_trace,
5393 &trace_stop_notes, _("\
5394 Set notes string to use for future tstop commands"), _("\
5395 Show the notes string to use for future tstop commands"), NULL,
5396 set_trace_stop_notes, NULL,
5397 &setlist, &showlist);
5401 add_target (&tfile_ops);