/* Tracing functionality for remote targets in custom GDB protocol
- Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
- 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+ Copyright (C) 1997-2012 Free Software Foundation, Inc.
This file is part of GDB.
#include "source.h"
#include "ax.h"
#include "ax-gdb.h"
+#include "memrange.h"
+#include "exceptions.h"
+#include "cli/cli-utils.h"
+#include "probe.h"
/* readline include files */
#include "readline/readline.h"
extern int hex2bin (const char *hex, gdb_byte *bin, int count);
extern int bin2hex (const gdb_byte *bin, char *hex, int count);
-extern void stop_tracing ();
-
/* Maximum length of an agent aexpression.
This accounts for the fact that packets are limited to 400 bytes
(which includes everything -- including the checksum), and assumes
large. (400 - 31)/2 == 184 */
#define MAX_AGENT_EXPR_LEN 184
+#define TFILE_PID (1)
+
/* A hook used to notify the UI of tracepoint operations. */
void (*deprecated_trace_find_hook) (char *arg, int from_tty);
typedef struct trace_state_variable tsv_s;
DEF_VEC_O(tsv_s);
+/* An object describing the contents of a traceframe. */
+
+struct traceframe_info
+{
+ /* Collected memory. */
+ VEC(mem_range_s) *memory;
+};
+
static VEC(tsv_s) *tvariables;
/* The next integer to assign to a variable. */
/* Symtab and line for last traceframe collected. */
static struct symtab_and_line traceframe_sal;
+/* The traceframe info of the current traceframe. NULL if we haven't
+ yet attempted to fetch it, or if the target does not support
+ fetching this object, or if we're not inspecting a traceframe
+ presently. */
+static struct traceframe_info *traceframe_info;
+
/* Tracing command lists. */
static struct cmd_list_element *tfindlist;
static int circular_trace_buffer;
+/* Textual notes applying to the current and/or future trace runs. */
+
+char *trace_user = NULL;
+
+/* Textual notes applying to the current and/or future trace runs. */
+
+char *trace_notes = NULL;
+
+/* Textual notes applying to the stopping of a trace. */
+
+char *trace_stop_notes = NULL;
+
/* ======= Important command functions: ======= */
static void trace_actions_command (char *, int);
static void trace_start_command (char *, int);
static void add_register (struct collection_list *collection,
unsigned int regno);
-extern void send_disconnected_tracing_value (int value);
-
static void free_uploaded_tps (struct uploaded_tp **utpp);
static void free_uploaded_tsvs (struct uploaded_tsv **utsvp);
};
struct trace_status *
-current_trace_status ()
+current_trace_status (void)
{
return &trace_status;
}
+/* Destroy INFO. */
+
+static void
+free_traceframe_info (struct traceframe_info *info)
+{
+ if (info != NULL)
+ {
+ VEC_free (mem_range_s, info->memory);
+
+ xfree (info);
+ }
+}
+
+/* Free and clear the traceframe info cache of the current
+ traceframe. */
+
+static void
+clear_traceframe_info (void)
+{
+ free_traceframe_info (traceframe_info);
+ traceframe_info = NULL;
+}
+
/* Set traceframe number to NUM. */
static void
set_traceframe_num (int num)
{
CORE_ADDR trace_pc;
- if (trace_frame == NULL) /* Cease debugging any trace buffers. */
+ /* Save as globals for internal use. */
+ if (trace_frame != NULL
+ && get_frame_pc_if_available (trace_frame, &trace_pc))
+ {
+ traceframe_sal = find_pc_line (trace_pc, 0);
+ traceframe_fun = find_pc_function (trace_pc);
+
+ /* Save linenumber as "$trace_line", a debugger variable visible to
+ users. */
+ set_internalvar_integer (lookup_internalvar ("trace_line"),
+ traceframe_sal.line);
+ }
+ else
{
- traceframe_fun = 0;
- traceframe_sal.pc = traceframe_sal.line = 0;
- traceframe_sal.symtab = NULL;
- clear_internalvar (lookup_internalvar ("trace_func"));
- clear_internalvar (lookup_internalvar ("trace_file"));
+ init_sal (&traceframe_sal);
+ traceframe_fun = NULL;
set_internalvar_integer (lookup_internalvar ("trace_line"), -1);
- return;
}
- /* Save as globals for internal use. */
- trace_pc = get_frame_pc (trace_frame);
- traceframe_sal = find_pc_line (trace_pc, 0);
- traceframe_fun = find_pc_function (trace_pc);
-
- /* Save linenumber as "$trace_line", a debugger variable visible to
- users. */
- set_internalvar_integer (lookup_internalvar ("trace_line"),
- traceframe_sal.line);
-
/* Save func name as "$trace_func", a debugger variable visible to
users. */
if (traceframe_fun == NULL
return NULL;
}
-void
+static void
delete_trace_state_variable (const char *name)
{
struct trace_state_variable *tsv;
/* The 'tvariable' command collects a name and optional expression to
evaluate into an initial value. */
-void
+static void
trace_variable_command (char *args, int from_tty)
{
struct expression *expr;
do_cleanups (old_chain);
}
-void
+static void
delete_trace_variable_command (char *args, int from_tty)
{
int ix;
int ix;
int count = 0;
struct cleanup *back_to;
+ struct ui_out *uiout = current_uiout;
if (VEC_length (tsv_s, tvariables) == 0 && !ui_out_is_mi_like_p (uiout))
{
error (_("This command can only be used in a tracepoint actions list."));
}
+/* Parse any collection options, such as /s for strings. */
+
+char *
+decode_agent_options (char *exp)
+{
+ struct value_print_options opts;
+
+ if (*exp != '/')
+ return exp;
+
+ /* Call this to borrow the print elements default for collection
+ size. */
+ get_user_print_options (&opts);
+
+ exp++;
+ if (*exp == 's')
+ {
+ if (target_supports_string_tracing ())
+ {
+ /* Allow an optional decimal number giving an explicit maximum
+ string length, defaulting it to the "print elements" value;
+ so "collect/s80 mystr" gets at most 80 bytes of string. */
+ trace_string_kludge = opts.print_max;
+ exp++;
+ if (*exp >= '0' && *exp <= '9')
+ trace_string_kludge = atoi (exp);
+ while (*exp >= '0' && *exp <= '9')
+ exp++;
+ }
+ else
+ error (_("Target does not support \"/s\" option for string tracing."));
+ }
+ else
+ error (_("Undefined collection format \"%c\"."), *exp);
+
+ exp = skip_spaces (exp);
+
+ return exp;
+}
+
/* Enter a list of actions for a tracepoint. */
static void
trace_actions_command (char *args, int from_tty)
{
- struct breakpoint *t;
+ struct tracepoint *t;
struct command_line *l;
- t = get_tracepoint_by_number (&args, 0, 1);
+ t = get_tracepoint_by_number (&args, NULL, 1);
if (t)
{
char *tmpbuf =
xstrprintf ("Enter actions for tracepoint %d, one per line.",
- t->number);
+ t->base.number);
struct cleanup *cleanups = make_cleanup (xfree, tmpbuf);
l = read_command_lines (tmpbuf, from_tty, 1,
check_tracepoint_command, t);
do_cleanups (cleanups);
- breakpoint_set_commands (t, l);
+ breakpoint_set_commands (&t->base, l);
}
/* else just return */
}
/* worker function */
void
-validate_actionline (char **line, struct breakpoint *t)
+validate_actionline (char **line, struct breakpoint *b)
{
struct cmd_list_element *c;
struct expression *exp = NULL;
char *p, *tmp_p;
struct bp_location *loc;
struct agent_expr *aexpr;
+ struct tracepoint *t = (struct tracepoint *) b;
/* If EOF is typed, *line is NULL. */
if (*line == NULL)
if (cmd_cfunc_eq (c, collect_pseudocommand))
{
+ trace_string_kludge = 0;
+ if (*p == '/')
+ p = decode_agent_options (p);
+
do
{ /* Repeat over a comma-separated list. */
QUIT; /* Allow user to bail out with ^C. */
if (0 == strncasecmp ("reg", p + 1, 3)
|| 0 == strncasecmp ("arg", p + 1, 3)
|| 0 == strncasecmp ("loc", p + 1, 3)
+ || 0 == strncasecmp ("_ret", p + 1, 4)
|| 0 == strncasecmp ("_sdata", p + 1, 6))
{
p = strchr (p, ',');
/* else fall thru, treat p as an expression and parse it! */
}
tmp_p = p;
- for (loc = t->loc; loc; loc = loc->next)
+ for (loc = t->base.loc; loc; loc = loc->next)
{
p = tmp_p;
exp = parse_exp_1 (&p, block_for_pc (loc->address), 1);
{
if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST)
{
- error (_("constant `%s' (value %ld) "
+ error (_("constant `%s' (value %s) "
"will not be collected."),
SYMBOL_PRINT_NAME (exp->elts[2].symbol),
- SYMBOL_VALUE (exp->elts[2].symbol));
+ plongest (SYMBOL_VALUE (exp->elts[2].symbol)));
}
else if (SYMBOL_CLASS (exp->elts[2].symbol)
== LOC_OPTIMIZED_OUT)
p++;
tmp_p = p;
- for (loc = t->loc; loc; loc = loc->next)
+ for (loc = t->base.loc; loc; loc = loc->next)
{
p = tmp_p;
/* Only expressions are allowed for this action. */
{
for (a = 0, b = 1; b < memranges->next_memrange; b++)
{
- if (memranges->list[a].type == memranges->list[b].type &&
- memranges->list[b].start - memranges->list[a].end <=
- MAX_REGISTER_SIZE)
+ /* If memrange b overlaps or is adjacent to memrange a,
+ merge them. */
+ if (memranges->list[a].type == memranges->list[b].type
+ && memranges->list[b].start <= memranges->list[a].end)
{
- /* memrange b starts before memrange a ends; merge them. */
if (memranges->list[b].end > memranges->list[a].end)
memranges->list[a].end = memranges->list[b].end;
continue; /* next b, same a */
SYMBOL_CLASS (sym));
break;
case LOC_CONST:
- printf_filtered ("constant %s (value %ld) will not be collected.\n",
- SYMBOL_PRINT_NAME (sym), SYMBOL_VALUE (sym));
+ printf_filtered ("constant %s (value %s) will not be collected.\n",
+ SYMBOL_PRINT_NAME (sym), plongest (SYMBOL_VALUE (sym)));
break;
case LOC_STATIC:
offset = SYMBOL_VALUE_ADDRESS (sym);
block = block_for_pc (pc);
if (block == NULL)
{
- warning (_("Can't collect args; no symbol table info available.\n"));
+ warning (_("Can't collect args; no symbol table info available."));
return;
}
if (cmd_cfunc_eq (cmd, collect_pseudocommand))
{
+ trace_string_kludge = 0;
+ if (*action_exp == '/')
+ action_exp = decode_agent_options (action_exp);
+
do
{ /* Repeat over a comma-separated list. */
QUIT; /* Allow user to bail out with ^C. */
if (0 == strncasecmp ("$reg", action_exp, 4))
{
- for (i = 0; i < gdbarch_num_regs (t->gdbarch); i++)
+ for (i = 0; i < gdbarch_num_regs (tloc->gdbarch); i++)
add_register (collect, i);
action_exp = strchr (action_exp, ','); /* more? */
}
else if (0 == strncasecmp ("$arg", action_exp, 4))
{
add_local_symbols (collect,
- t->gdbarch,
+ tloc->gdbarch,
tloc->address,
frame_reg,
frame_offset,
else if (0 == strncasecmp ("$loc", action_exp, 4))
{
add_local_symbols (collect,
- t->gdbarch,
+ tloc->gdbarch,
tloc->address,
frame_reg,
frame_offset,
'L');
action_exp = strchr (action_exp, ','); /* more? */
}
+ else if (0 == strncasecmp ("$_ret", action_exp, 5))
+ {
+ struct cleanup *old_chain1 = NULL;
+
+ aexpr = gen_trace_for_return_address (tloc->address,
+ tloc->gdbarch);
+
+ old_chain1 = make_cleanup_free_agent_expr (aexpr);
+
+ ax_reqs (aexpr);
+ report_agent_reqs_errors (aexpr);
+
+ discard_cleanups (old_chain1);
+ add_aexpr (collect, aexpr);
+
+ /* take care of the registers */
+ if (aexpr->reg_mask_len > 0)
+ {
+ int ndx1, ndx2;
+
+ for (ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++)
+ {
+ QUIT; /* allow user to bail out with ^C */
+ if (aexpr->reg_mask[ndx1] != 0)
+ {
+ /* assume chars have 8 bits */
+ for (ndx2 = 0; ndx2 < 8; ndx2++)
+ if (aexpr->reg_mask[ndx1] & (1 << ndx2))
+ /* it's used -- record it */
+ add_register (collect,
+ ndx1 * 8 + ndx2);
+ }
+ }
+ }
+
+ action_exp = strchr (action_exp, ','); /* more? */
+ }
else if (0 == strncasecmp ("$_sdata", action_exp, 7))
{
add_static_trace_data (collect);
{
const char *name = &exp->elts[2].string;
- i = user_reg_map_name_to_regnum (t->gdbarch,
+ i = user_reg_map_name_to_regnum (tloc->gdbarch,
name, strlen (name));
if (i == -1)
internal_error (__FILE__, __LINE__,
case OP_VAR_VALUE:
collect_symbol (collect,
exp->elts[2].symbol,
- t->gdbarch,
+ tloc->gdbarch,
frame_reg,
frame_offset,
tloc->address);
}
/* Render all actions into gdb protocol. */
-/*static*/ void
+
+void
encode_actions (struct breakpoint *t, struct bp_location *tloc,
char ***tdp_actions, char ***stepping_actions)
{
*tdp_actions = NULL;
*stepping_actions = NULL;
- gdbarch_virtual_frame_pointer (t->gdbarch,
- t->loc->address, &frame_reg, &frame_offset);
+ gdbarch_virtual_frame_pointer (tloc->gdbarch,
+ tloc->address, &frame_reg, &frame_offset);
actions = breakpoint_commands (t);
collect->next_aexpr_elt++;
}
+static void
+process_tracepoint_on_disconnect (void)
+{
+ VEC(breakpoint_p) *tp_vec = NULL;
+ int ix;
+ struct breakpoint *b;
+ int has_pending_p = 0;
+
+ /* Check whether we still have pending tracepoint. If we have, warn the
+ user that pending tracepoint will no longer work. */
+ tp_vec = all_tracepoints ();
+ for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, b); ix++)
+ {
+ if (b->loc == NULL)
+ {
+ has_pending_p = 1;
+ break;
+ }
+ else
+ {
+ struct bp_location *loc1;
+
+ for (loc1 = b->loc; loc1; loc1 = loc1->next)
+ {
+ if (loc1->shlib_disabled)
+ {
+ has_pending_p = 1;
+ break;
+ }
+ }
+
+ if (has_pending_p)
+ break;
+ }
+ }
+ VEC_free (breakpoint_p, tp_vec);
+
+ if (has_pending_p)
+ warning (_("Pending tracepoints will not be resolved while"
+ " GDB is disconnected\n"));
+}
+
void
-start_tracing (void)
+start_tracing (char *notes)
{
VEC(breakpoint_p) *tp_vec = NULL;
int ix;
- struct breakpoint *t;
+ struct breakpoint *b;
struct trace_state_variable *tsv;
int any_enabled = 0, num_to_download = 0;
-
+ int ret;
+
tp_vec = all_tracepoints ();
/* No point in tracing without any tracepoints... */
error (_("No tracepoints defined, not starting trace"));
}
- for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++)
+ for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, b); ix++)
{
- if (t->enable_state == bp_enabled)
+ struct tracepoint *t = (struct tracepoint *) b;
+ struct bp_location *loc;
+
+ if (b->enable_state == bp_enabled)
any_enabled = 1;
- if ((t->type == bp_fast_tracepoint
+ if ((b->type == bp_fast_tracepoint
? may_insert_fast_tracepoints
: may_insert_tracepoints))
++num_to_download;
else
warning (_("May not insert %stracepoints, skipping tracepoint %d"),
- (t->type == bp_fast_tracepoint ? "fast " : ""), t->number);
+ (b->type == bp_fast_tracepoint ? "fast " : ""), b->number);
}
- /* No point in tracing with only disabled tracepoints. */
if (!any_enabled)
{
- VEC_free (breakpoint_p, tp_vec);
- error (_("No tracepoints enabled, not starting trace"));
+ if (target_supports_enable_disable_tracepoint ())
+ warning (_("No tracepoints enabled"));
+ else
+ {
+ /* No point in tracing with only disabled tracepoints that
+ cannot be re-enabled. */
+ VEC_free (breakpoint_p, tp_vec);
+ error (_("No tracepoints enabled, not starting trace"));
+ }
}
if (num_to_download <= 0)
target_trace_init ();
- for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++)
+ for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, b); ix++)
{
- if ((t->type == bp_fast_tracepoint
+ struct tracepoint *t = (struct tracepoint *) b;
+ struct bp_location *loc;
+
+ /* Clear `inserted' flag. */
+ for (loc = b->loc; loc; loc = loc->next)
+ loc->inserted = 0;
+
+ if ((b->type == bp_fast_tracepoint
? !may_insert_fast_tracepoints
: !may_insert_tracepoints))
continue;
t->number_on_target = 0;
- target_download_tracepoint (t);
- t->number_on_target = t->number;
+
+ for (loc = b->loc; loc; loc = loc->next)
+ {
+ /* Since tracepoint locations are never duplicated, `inserted'
+ flag should be zero. */
+ gdb_assert (!loc->inserted);
+
+ target_download_tracepoint (loc);
+
+ loc->inserted = 1;
+ }
+
+ t->number_on_target = b->number;
+
+ for (loc = b->loc; loc; loc = loc->next)
+ if (loc->probe != NULL)
+ loc->probe->pops->set_semaphore (loc->probe, loc->gdbarch);
}
VEC_free (breakpoint_p, tp_vec);
target_set_disconnected_tracing (disconnected_tracing);
target_set_circular_trace_buffer (circular_trace_buffer);
+ if (!notes)
+ notes = trace_notes;
+ ret = target_set_trace_notes (trace_user, notes, NULL);
+
+ if (!ret && (trace_user || notes))
+ warning ("Target does not support trace user/notes, info ignored");
+
/* Now insert traps and begin collecting data. */
target_trace_start ();
set_tracepoint_num (-1);
set_traceframe_context (NULL);
current_trace_status()->running = 1;
+ clear_traceframe_info ();
}
-/* tstart command:
-
- Tell target to clear any previous trace experiment.
- Walk the list of tracepoints, and send them (and their actions)
- to the target. If no errors,
- Tell target to start a new trace experiment. */
+/* The tstart command requests the target to start a new trace run.
+ The command passes any arguments it has to the target verbatim, as
+ an optional "trace note". This is useful as for instance a warning
+ to other users if the trace runs disconnected, and you don't want
+ anybody else messing with the target. */
static void
trace_start_command (char *args, int from_tty)
error (_("New trace run not started."));
}
- start_tracing ();
+ start_tracing (args);
}
-/* tstop command */
+/* The tstop command stops the tracing run. The command passes any
+ supplied arguments to the target verbatim as a "stop note"; if the
+ target supports trace notes, then it will be reported back as part
+ of the trace run's status. */
+
static void
trace_stop_command (char *args, int from_tty)
{
if (!current_trace_status ()->running)
error (_("Trace is not running."));
- stop_tracing ();
+ stop_tracing (args);
}
void
-stop_tracing (void)
+stop_tracing (char *note)
{
+ int ret;
+ VEC(breakpoint_p) *tp_vec = NULL;
+ int ix;
+ struct breakpoint *t;
+
target_trace_stop ();
+
+ tp_vec = all_tracepoints ();
+ for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++)
+ {
+ struct bp_location *loc;
+
+ if ((t->type == bp_fast_tracepoint
+ ? !may_insert_fast_tracepoints
+ : !may_insert_tracepoints))
+ continue;
+
+ for (loc = t->loc; loc; loc = loc->next)
+ {
+ /* GDB can be totally absent in some disconnected trace scenarios,
+ but we don't really care if this semaphore goes out of sync.
+ That's why we are decrementing it here, but not taking care
+ in other places. */
+ if (loc->probe != NULL)
+ loc->probe->pops->clear_semaphore (loc->probe, loc->gdbarch);
+ }
+ }
+
+ VEC_free (breakpoint_p, tp_vec);
+
+ if (!note)
+ note = trace_stop_notes;
+ ret = target_set_trace_notes (NULL, NULL, note);
+
+ if (!ret && note)
+ warning ("Target does not support trace notes, note ignored");
+
/* Should change in response to reply? */
current_trace_status ()->running = 0;
}
trace_status_command (char *args, int from_tty)
{
struct trace_status *ts = current_trace_status ();
- int status;
+ int status, ix;
+ VEC(breakpoint_p) *tp_vec = NULL;
+ struct breakpoint *t;
status = target_get_trace_status (ts);
printf_filtered (_("No trace has been run on the target.\n"));
break;
case tstop_command:
- printf_filtered (_("Trace stopped by a tstop command.\n"));
+ if (ts->stop_desc)
+ printf_filtered (_("Trace stopped by a tstop command (%s).\n"),
+ ts->stop_desc);
+ else
+ printf_filtered (_("Trace stopped by a tstop command.\n"));
break;
case trace_buffer_full:
printf_filtered (_("Trace stopped because the buffer was full.\n"));
if (ts->stopping_tracepoint)
printf_filtered (_("Trace stopped by an "
"error (%s, tracepoint %d).\n"),
- ts->error_desc, ts->stopping_tracepoint);
+ ts->stop_desc, ts->stopping_tracepoint);
else
printf_filtered (_("Trace stopped by an error (%s).\n"),
- ts->error_desc);
+ ts->stop_desc);
break;
case trace_stop_reason_unknown:
printf_filtered (_("Trace stopped for an unknown reason.\n"));
if (ts->circular_buffer)
printf_filtered (_("Trace buffer is circular.\n"));
+ if (ts->user_name && strlen (ts->user_name) > 0)
+ printf_filtered (_("Trace user is %s.\n"), ts->user_name);
+
+ if (ts->notes && strlen (ts->notes) > 0)
+ printf_filtered (_("Trace notes: %s.\n"), ts->notes);
+
/* Now report on what we're doing with tfind. */
if (traceframe_number >= 0)
printf_filtered (_("Looking at trace frame %d, tracepoint %d.\n"),
traceframe_number, tracepoint_number);
else
printf_filtered (_("Not looking at any trace frame.\n"));
+
+ /* Report start/stop times if supplied. */
+ if (ts->start_time)
+ {
+ if (ts->stop_time)
+ {
+ LONGEST run_time = ts->stop_time - ts->start_time;
+
+ /* Reporting a run time is more readable than two long numbers. */
+ printf_filtered (_("Trace started at %ld.%06ld secs, stopped %ld.%06ld secs later.\n"),
+ (long int) ts->start_time / 1000000,
+ (long int) ts->start_time % 1000000,
+ (long int) run_time / 1000000,
+ (long int) run_time % 1000000);
+ }
+ else
+ printf_filtered (_("Trace started at %ld.%06ld secs.\n"),
+ (long int) ts->start_time / 1000000,
+ (long int) ts->start_time % 1000000);
+ }
+ else if (ts->stop_time)
+ printf_filtered (_("Trace stopped at %ld.%06ld secs.\n"),
+ (long int) ts->stop_time / 1000000,
+ (long int) ts->stop_time % 1000000);
+
+ /* Now report any per-tracepoint status available. */
+ tp_vec = all_tracepoints ();
+
+ for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++)
+ target_get_tracepoint_status (t, NULL);
+
+ VEC_free (breakpoint_p, tp_vec);
}
/* Report the trace status to uiout, in a way suitable for MI, and not
void
trace_status_mi (int on_stop)
{
+ struct ui_out *uiout = current_uiout;
struct trace_status *ts = current_trace_status ();
int status;
stopping_tracepoint);
if (ts->stop_reason == tracepoint_error)
ui_out_field_string (uiout, "error-description",
- ts->error_desc);
+ ts->stop_desc);
}
}
}
ui_out_field_int (uiout, "disconnected", ts->disconnected_tracing);
ui_out_field_int (uiout, "circular", ts->circular_buffer);
+
+ ui_out_field_string (uiout, "user-name", ts->user_name);
+ ui_out_field_string (uiout, "notes", ts->notes);
+
+ {
+ char buf[100];
+
+ xsnprintf (buf, sizeof buf, "%ld.%06ld",
+ (long int) ts->start_time / 1000000,
+ (long int) ts->start_time % 1000000);
+ ui_out_field_string (uiout, "start-time", buf);
+ xsnprintf (buf, sizeof buf, "%ld.%06ld",
+ (long int) ts->stop_time / 1000000,
+ (long int) ts->stop_time % 1000000);
+ ui_out_field_string (uiout, "stop-time", buf);
+ }
}
/* This function handles the details of what to do about an ongoing
disconnected-tracing. */
if (current_trace_status ()->running && from_tty)
{
+ process_tracepoint_on_disconnect ();
+
if (current_trace_status ()->disconnected_tracing)
{
if (!query (_("Trace is running and will "
confusing upon reconnection. Just use these calls instead of
full tfind_1 behavior because we're in the middle of detaching,
and there's no point to updating current stack frame etc. */
- set_traceframe_number (-1);
+ set_current_traceframe (-1);
set_traceframe_context (NULL);
}
{
int target_frameno = -1, target_tracept = -1;
struct frame_id old_frame_id = null_frame_id;
- struct breakpoint *tp;
+ struct tracepoint *tp;
+ struct ui_out *uiout = current_uiout;
/* Only try to get the current stack frame if we have a chance of
succeeding. In particular, if we're trying to get a first trace
registers_changed ();
target_dcache_invalidate ();
set_traceframe_num (target_frameno);
- set_tracepoint_num (tp ? tp->number : target_tracept);
+ clear_traceframe_info ();
+ set_tracepoint_num (tp ? tp->base.number : target_tracept);
if (target_frameno == -1)
set_traceframe_context (NULL);
else
trace_find_tracepoint_command (char *args, int from_tty)
{
int tdp;
- struct breakpoint *tp;
+ struct tracepoint *tp;
if (current_trace_status ()->running && !current_trace_status ()->from_file)
error (_("May not look at trace frames while trace is running."));
}
else
{
- sals = decode_line_spec (args, 1);
+ sals = decode_line_spec (args, DECODE_LINE_FUNFIRSTLINE);
sal = sals.sals[0];
}
struct symbol *sym;
struct minimal_symbol *msym;
struct block *block;
- char **canonical, *symname, *save_args = args;
- struct dict_iterator iter;
+ const char *symname;
+ char *save_args = args;
+ struct block_iterator iter;
int j, count = 0;
struct gdbarch *gdbarch;
int regno;
error (_("requires an argument (function, "
"line or *addr) to define a scope"));
- sals = decode_line_1 (&args, 1, NULL, 0, &canonical, NULL);
+ sals = decode_line_1 (&args, DECODE_LINE_FUNFIRSTLINE, NULL, 0);
if (sals.nelts == 0)
return; /* Presumably decode_line_1 has already warned. */
count--; /* Don't count this one. */
continue;
case LOC_CONST:
- printf_filtered ("a constant with value %ld (0x%lx)",
- SYMBOL_VALUE (sym), SYMBOL_VALUE (sym));
+ printf_filtered ("a constant with value %s (%s)",
+ plongest (SYMBOL_VALUE (sym)),
+ hex_string (SYMBOL_VALUE (sym)));
break;
case LOC_CONST_BYTES:
printf_filtered ("constant bytes: ");
gdbarch_register_name (gdbarch, regno));
break;
case LOC_ARG:
- printf_filtered ("an argument at stack/frame offset %ld",
- SYMBOL_VALUE (sym));
+ printf_filtered ("an argument at stack/frame offset %s",
+ plongest (SYMBOL_VALUE (sym)));
break;
case LOC_LOCAL:
- printf_filtered ("a local variable at frame offset %ld",
- SYMBOL_VALUE (sym));
+ printf_filtered ("a local variable at frame offset %s",
+ plongest (SYMBOL_VALUE (sym)));
break;
case LOC_REF_ARG:
- printf_filtered ("a reference argument at offset %ld",
- SYMBOL_VALUE (sym));
+ printf_filtered ("a reference argument at offset %s",
+ plongest (SYMBOL_VALUE (sym)));
break;
case LOC_REGPARM_ADDR:
/* Note comment at LOC_REGISTER. */
STEPPING_ACTIONS should be equal. */
if (stepping_frame == stepping_actions)
{
+ if (*action_exp == '/')
+ action_exp = decode_agent_options (action_exp);
+
do
{ /* Repeat over a comma-separated list. */
QUIT; /* Allow user to bail out with ^C. */
if (0 == strncasecmp (action_exp, "$reg", 4))
registers_info (NULL, from_tty);
+ else if (0 == strncasecmp (action_exp, "$_ret", 5))
+ ;
else if (0 == strncasecmp (action_exp, "$loc", 4))
locals_info (NULL, from_tty);
else if (0 == strncasecmp (action_exp, "$arg", 4))
trace_dump_command (char *args, int from_tty)
{
struct regcache *regcache;
- struct breakpoint *t;
+ struct tracepoint *t;
int stepping_frame = 0;
struct bp_location *loc;
char *line, *default_collect_line = NULL;
frame. (FIXME this is not reliable, should record each frame's
type.) */
stepping_frame = 1;
- for (loc = t->loc; loc; loc = loc->next)
+ for (loc = t->base.loc; loc; loc = loc->next)
if (loc->address == regcache_read_pc (regcache))
stepping_frame = 0;
- actions = breakpoint_commands (t);
+ actions = breakpoint_commands (&t->base);
/* If there is a default-collect list, make up a collect command,
prepend to the tracepoint's commands, and pass the whole mess to
default_collect_line = xstrprintf ("collect %s", default_collect);
old_chain = make_cleanup (xfree, default_collect_line);
line = default_collect_line;
- validate_actionline (&line, t);
+ validate_actionline (&line, &t->base);
default_collect_action = xmalloc (sizeof (struct command_line));
make_cleanup (xfree, default_collect_action);
default_collect_action->next = actions;
(ts->running ? '1' : '0'), stop_reason_names[ts->stop_reason]);
if (ts->stop_reason == tracepoint_error)
{
- char *buf = (char *) alloca (strlen (ts->error_desc) * 2 + 1);
+ char *buf = (char *) alloca (strlen (ts->stop_desc) * 2 + 1);
- bin2hex ((gdb_byte *) ts->error_desc, buf, 0);
+ bin2hex ((gdb_byte *) ts->stop_desc, buf, 0);
fprintf (fp, ":%s", buf);
}
fprintf (fp, ":%x", ts->stopping_tracepoint);
target_upload_tracepoints (&uploaded_tps);
+ for (utp = uploaded_tps; utp; utp = utp->next)
+ target_get_tracepoint_status (NULL, utp);
+
for (utp = uploaded_tps; utp; utp = utp->next)
{
fprintf (fp, "tp T%x:%s:%c:%x:%x",
buf, MAX_TRACE_UPLOAD);
fprintf (fp, "tp Z%s\n", buf);
}
+ fprintf (fp, "tp V%x:%s:%x:%s\n",
+ utp->number, phex_nz (utp->addr, sizeof (utp->addr)),
+ utp->hit_count,
+ phex_nz (utp->traceframe_usage,
+ sizeof (utp->traceframe_usage)));
}
free_uploaded_tps (&uploaded_tps);
trace_save (filename, target_does_save);
if (from_tty)
- printf_filtered (_("Trace data saved to file '%s'.\n"), args);
+ printf_filtered (_("Trace data saved to file '%s'.\n"), filename);
do_cleanups (back_to);
}
/* Tell the target what to do with an ongoing tracing run if GDB
disconnects for some reason. */
-void
-send_disconnected_tracing_value (int value)
-{
- target_set_disconnected_tracing (value);
-}
-
static void
set_disconnected_tracing (char *args, int from_tty,
struct cmd_list_element *c)
{
- send_disconnected_tracing_value (disconnected_tracing);
+ target_set_disconnected_tracing (disconnected_tracing);
}
static void
target_set_circular_trace_buffer (circular_trace_buffer);
}
+static void
+set_trace_user (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ int ret;
+
+ ret = target_set_trace_notes (trace_user, NULL, NULL);
+
+ if (!ret)
+ warning ("Target does not support trace notes, user ignored");
+}
+
+static void
+set_trace_notes (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ int ret;
+
+ ret = target_set_trace_notes (NULL, trace_notes, NULL);
+
+ if (!ret)
+ warning ("Target does not support trace notes, note ignored");
+}
+
+static void
+set_trace_stop_notes (char *args, int from_tty,
+ struct cmd_list_element *c)
+{
+ int ret;
+
+ ret = target_set_trace_notes (NULL, NULL, trace_stop_notes);
+
+ if (!ret)
+ warning ("Target does not support trace notes, stop note ignored");
+}
+
/* Convert the memory pointed to by mem into hex, placing result in buf.
* Return a pointer to the last char put in buf (null)
* "stolen" from sparc-stub.c
if NUM is already current. */
void
-set_traceframe_number (int num)
+set_current_traceframe (int num)
{
int newnum;
/* Changing the traceframe changes our view of registers and of the
frame chain. */
registers_changed ();
+
+ clear_traceframe_info ();
+}
+
+/* Make the traceframe NUM be the current trace frame, and do nothing
+ more. */
+
+void
+set_traceframe_number (int num)
+{
+ traceframe_number = num;
}
/* A cleanup used when switching away and back from tfind mode. */
{
struct current_traceframe_cleanup *old = arg;
- set_traceframe_number (old->traceframe_number);
+ set_current_traceframe (old->traceframe_number);
}
static void
restore_current_traceframe_cleanup_dtor);
}
+struct cleanup *
+make_cleanup_restore_traceframe_number (void)
+{
+ return make_cleanup_restore_integer (&traceframe_number);
+}
+
/* Given a number and address, return an uploaded tracepoint with that
number, creating if necessary. */
/* Given a number and address, return an uploaded tracepoint with that
number, creating if necessary. */
-struct uploaded_tsv *
+static struct uploaded_tsv *
get_uploaded_tsv (int num, struct uploaded_tsv **utsvp)
{
struct uploaded_tsv *utsv;
}
}
+/* FIXME this function is heuristic and will miss the cases where the
+ conditional is semantically identical but differs in whitespace,
+ such as "x == 0" vs "x==0". */
+
+static int
+cond_string_is_same (char *str1, char *str2)
+{
+ if (str1 == NULL || str2 == NULL)
+ return (str1 == str2);
+
+ return (strcmp (str1, str2) == 0);
+}
+
/* Look for an existing tracepoint that seems similar enough to the
uploaded one. Enablement isn't compared, because the user can
toggle that freely, and may have done so in anticipation of the
- next trace run. */
+ next trace run. Return the location of matched tracepoint. */
-struct breakpoint *
-find_matching_tracepoint (struct uploaded_tp *utp)
+static struct bp_location *
+find_matching_tracepoint_location (struct uploaded_tp *utp)
{
VEC(breakpoint_p) *tp_vec = all_tracepoints ();
int ix;
- struct breakpoint *t;
+ struct breakpoint *b;
struct bp_location *loc;
- for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++)
+ for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, b); ix++)
{
- if (t->type == utp->type
+ struct tracepoint *t = (struct tracepoint *) b;
+
+ if (b->type == utp->type
&& t->step_count == utp->step
&& t->pass_count == utp->pass
- /* FIXME also test conditionals and actions. */
+ && cond_string_is_same (t->base.cond_string, utp->cond_string)
+ /* FIXME also test actions. */
)
{
/* Scan the locations for an address match. */
- for (loc = t->loc; loc; loc = loc->next)
+ for (loc = b->loc; loc; loc = loc->next)
{
if (loc->address == utp->addr)
- return t;
+ return loc;
}
}
}
merge_uploaded_tracepoints (struct uploaded_tp **uploaded_tps)
{
struct uploaded_tp *utp;
- struct breakpoint *t;
/* Look for GDB tracepoints that match up with our uploaded versions. */
for (utp = *uploaded_tps; utp; utp = utp->next)
{
- t = find_matching_tracepoint (utp);
- if (t)
- printf_filtered (_("Assuming tracepoint %d is same "
- "as target's tracepoint %d at %s.\n"),
- t->number, utp->number,
- paddress (get_current_arch (), utp->addr));
+ struct bp_location *loc;
+ struct tracepoint *t;
+
+ loc = find_matching_tracepoint_location (utp);
+ if (loc)
+ {
+ /* Mark this location as already inserted. */
+ loc->inserted = 1;
+ t = (struct tracepoint *) loc->owner;
+ printf_filtered (_("Assuming tracepoint %d is same "
+ "as target's tracepoint %d at %s.\n"),
+ loc->owner->number, utp->number,
+ paddress (loc->gdbarch, utp->addr));
+ }
else
{
t = create_tracepoint_from_upload (utp);
if (t)
printf_filtered (_("Created tracepoint %d for "
"target's tracepoint %d at %s.\n"),
- t->number, utp->number,
+ t->base.number, utp->number,
paddress (get_current_arch (), utp->addr));
else
printf_filtered (_("Failed to create tracepoint for target's "
/* Trace state variables don't have much to identify them beyond their
name, so just use that to detect matches. */
-struct trace_state_variable *
+static struct trace_state_variable *
find_matching_tsv (struct uploaded_tsv *utsv)
{
if (!utsv->name)
return find_trace_state_variable (utsv->name);
}
-struct trace_state_variable *
+static struct trace_state_variable *
create_tsv_from_upload (struct uploaded_tsv *utsv)
{
const char *namebase;
- char buf[20];
+ char *buf;
int try_num = 0;
struct trace_state_variable *tsv;
+ struct cleanup *old_chain;
if (utsv->name)
{
namebase = utsv->name;
- sprintf (buf, "%s", namebase);
+ buf = xstrprintf ("%s", namebase);
}
else
{
namebase = "__tsv";
- sprintf (buf, "%s_%d", namebase, try_num++);
+ buf = xstrprintf ("%s_%d", namebase, try_num++);
}
/* Fish for a name that is not in use. */
/* (should check against all internal vars?) */
while (find_trace_state_variable (buf))
- sprintf (buf, "%s_%d", namebase, try_num++);
+ {
+ xfree (buf);
+ buf = xstrprintf ("%s_%d", namebase, try_num++);
+ }
+
+ old_chain = make_cleanup (xfree, buf);
/* We have an available name, create the variable. */
- tsv = create_trace_state_variable (xstrdup (buf));
+ tsv = create_trace_state_variable (buf);
tsv->initial_value = utsv->initial_value;
tsv->builtin = utsv->builtin;
+ do_cleanups (old_chain);
+
return tsv;
}
int trace_fd = -1;
off_t trace_frames_offset;
off_t cur_offset;
+int cur_traceframe_number;
int cur_data_size;
int trace_regblock_size;
struct uploaded_tp **utpp,
struct uploaded_tsv **utsvp);
+/* Read SIZE bytes into READBUF from the trace frame, starting at
+ TRACE_FD's current position. Note that this call `read'
+ underneath, hence it advances the file's seek position. Throws an
+ error if the `read' syscall fails, or less than SIZE bytes are
+ read. */
+
static void
-tfile_open (char *filename, int from_tty)
+tfile_read (gdb_byte *readbuf, int size)
{
- char *temp;
- struct cleanup *old_chain;
- int flags;
- int scratch_chan;
- char header[TRACE_HEADER_SIZE];
- char linebuf[1000]; /* Should be max remote packet size or so. */
+ int gotten;
+
+ gotten = read (trace_fd, readbuf, size);
+ if (gotten < 0)
+ perror_with_name (trace_filename);
+ else if (gotten < size)
+ error (_("Premature end of file while reading trace file"));
+}
+
+static void
+tfile_open (char *filename, int from_tty)
+{
+ volatile struct gdb_exception ex;
+ char *temp;
+ struct cleanup *old_chain;
+ int flags;
+ int scratch_chan;
+ char header[TRACE_HEADER_SIZE];
+ char linebuf[1000]; /* Should be max remote packet size or so. */
char byte;
- int bytes, i, gotten;
+ int bytes, i;
struct trace_status *ts;
struct uploaded_tp *uploaded_tps = NULL;
struct uploaded_tsv *uploaded_tsvs = NULL;
discard_cleanups (old_chain); /* Don't free filename any more. */
unpush_target (&tfile_ops);
- push_target (&tfile_ops);
-
trace_filename = xstrdup (filename);
trace_fd = scratch_chan;
bytes = 0;
/* Read the file header and test for validity. */
- gotten = read (trace_fd, &header, TRACE_HEADER_SIZE);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < TRACE_HEADER_SIZE)
- error (_("Premature end of file while reading trace file"));
+ tfile_read ((gdb_byte *) &header, TRACE_HEADER_SIZE);
bytes += TRACE_HEADER_SIZE;
if (!(header[0] == 0x7f
&& (strncmp (header + 1, "TRACE0\n", 7) == 0)))
error (_("File is not a valid trace file."));
+ push_target (&tfile_ops);
+
trace_regblock_size = 0;
ts = current_trace_status ();
/* We know we're working with a file. */
ts->disconnected_tracing = 0;
ts->circular_buffer = 0;
- /* Read through a section of newline-terminated lines that
- define things like tracepoints. */
- i = 0;
- while (1)
- {
- gotten = read (trace_fd, &byte, 1);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 1)
- error (_("Premature end of file while reading trace file"));
+ cur_traceframe_number = -1;
- ++bytes;
- if (byte == '\n')
+ TRY_CATCH (ex, RETURN_MASK_ALL)
+ {
+ /* Read through a section of newline-terminated lines that
+ define things like tracepoints. */
+ i = 0;
+ while (1)
{
- /* Empty line marks end of the definition section. */
- if (i == 0)
- break;
- linebuf[i] = '\0';
- i = 0;
- tfile_interp_line (linebuf, &uploaded_tps, &uploaded_tsvs);
+ tfile_read (&byte, 1);
+
+ ++bytes;
+ if (byte == '\n')
+ {
+ /* Empty line marks end of the definition section. */
+ if (i == 0)
+ break;
+ linebuf[i] = '\0';
+ i = 0;
+ tfile_interp_line (linebuf, &uploaded_tps, &uploaded_tsvs);
+ }
+ else
+ linebuf[i++] = byte;
+ if (i >= 1000)
+ error (_("Excessively long lines in trace file"));
}
- else
- linebuf[i++] = byte;
- if (i >= 1000)
- error (_("Excessively long lines in trace file"));
+
+ /* Record the starting offset of the binary trace data. */
+ trace_frames_offset = bytes;
+
+ /* If we don't have a blocksize, we can't interpret the
+ traceframes. */
+ if (trace_regblock_size == 0)
+ error (_("No register block size recorded in trace file"));
}
+ if (ex.reason < 0)
+ {
+ /* Pop the partially set up target. */
+ pop_target ();
+ throw_exception (ex);
+ }
+
+ inferior_appeared (current_inferior (), TFILE_PID);
+ inferior_ptid = pid_to_ptid (TFILE_PID);
+ add_thread_silent (inferior_ptid);
+
+ if (ts->traceframe_count <= 0)
+ warning (_("No traceframes present in this file."));
/* Add the file's tracepoints and variables into the current mix. */
merge_uploaded_tracepoints (&uploaded_tps);
- /* Record the starting offset of the binary trace data. */
- trace_frames_offset = bytes;
-
- /* If we don't have a blocksize, we can't interpret the
- traceframes. */
- if (trace_regblock_size == 0)
- error (_("No register block size recorded in trace file"));
- if (ts->traceframe_count <= 0)
- {
- warning (_("No traceframes present in this file."));
- return;
- }
-
-#define TFILE_PID (1)
- inferior_appeared (current_inferior (), TFILE_PID);
- inferior_ptid = pid_to_ptid (TFILE_PID);
- add_thread_silent (inferior_ptid);
-
post_create_inferior (&tfile_ops, from_tty);
-
-#if 0
- /* FIXME this will get defined in MI patch submission. */
- tfind_1 (tfind_number, 0, 0, 0, 0);
-#endif
}
/* Interpret the given line from the definitions part of the trace
void
parse_trace_status (char *line, struct trace_status *ts)
{
- char *p = line, *p1, *p2, *p_temp;
+ char *p = line, *p1, *p2, *p3, *p_temp;
+ int end;
ULONGEST val;
ts->running_known = 1;
ts->running = (*p++ == '1');
ts->stop_reason = trace_stop_reason_unknown;
- xfree (ts->error_desc);
- ts->error_desc = NULL;
+ xfree (ts->stop_desc);
+ ts->stop_desc = NULL;
ts->traceframe_count = -1;
ts->traceframes_created = -1;
ts->buffer_free = -1;
ts->buffer_size = -1;
ts->disconnected_tracing = 0;
ts->circular_buffer = 0;
+ xfree (ts->user_name);
+ ts->user_name = NULL;
+ xfree (ts->notes);
+ ts->notes = NULL;
+ ts->start_time = ts->stop_time = 0;
while (*p++)
{
if (p1 == NULL)
error (_("Malformed trace status, at %s\n\
Status line: '%s'\n"), p, line);
+ p3 = strchr (p, ';');
+ if (p3 == NULL)
+ p3 = p + strlen (p);
if (strncmp (p, stop_reason_names[trace_buffer_full], p1 - p) == 0)
{
p = unpack_varlen_hex (++p1, &val);
}
else if (strncmp (p, stop_reason_names[tstop_command], p1 - p) == 0)
{
- p = unpack_varlen_hex (++p1, &val);
+ p2 = strchr (++p1, ':');
+ if (!p2 || p2 > p3)
+ {
+ /*older style*/
+ p2 = p1;
+ }
+ else if (p2 != p1)
+ {
+ ts->stop_desc = xmalloc (strlen (line));
+ end = hex2bin (p1, ts->stop_desc, (p2 - p1) / 2);
+ ts->stop_desc[end] = '\0';
+ }
+ else
+ ts->stop_desc = xstrdup ("");
+
+ p = unpack_varlen_hex (++p2, &val);
ts->stop_reason = tstop_command;
}
else if (strncmp (p, stop_reason_names[trace_disconnected], p1 - p) == 0)
p2 = strchr (++p1, ':');
if (p2 != p1)
{
- int end;
-
- ts->error_desc = xmalloc ((p2 - p1) / 2 + 1);
- end = hex2bin (p1, ts->error_desc, (p2 - p1) / 2);
- ts->error_desc[end] = '\0';
+ ts->stop_desc = xmalloc ((p2 - p1) / 2 + 1);
+ end = hex2bin (p1, ts->stop_desc, (p2 - p1) / 2);
+ ts->stop_desc[end] = '\0';
}
else
- ts->error_desc = xstrdup ("");
+ ts->stop_desc = xstrdup ("");
p = unpack_varlen_hex (++p2, &val);
ts->stopping_tracepoint = val;
p = unpack_varlen_hex (++p1, &val);
ts->circular_buffer = val;
}
+ else if (strncmp (p, "starttime", p1 - p) == 0)
+ {
+ p = unpack_varlen_hex (++p1, &val);
+ ts->start_time = val;
+ }
+ else if (strncmp (p, "stoptime", p1 - p) == 0)
+ {
+ p = unpack_varlen_hex (++p1, &val);
+ ts->stop_time = val;
+ }
+ else if (strncmp (p, "username", p1 - p) == 0)
+ {
+ ++p1;
+ ts->user_name = xmalloc (strlen (p) / 2);
+ end = hex2bin (p1, ts->user_name, (p3 - p1) / 2);
+ ts->user_name[end] = '\0';
+ p = p3;
+ }
+ else if (strncmp (p, "notes", p1 - p) == 0)
+ {
+ ++p1;
+ ts->notes = xmalloc (strlen (p) / 2);
+ end = hex2bin (p1, ts->notes, (p3 - p1) / 2);
+ ts->notes[end] = '\0';
+ p = p3;
+ }
else
{
/* Silently skip unknown optional info. */
}
}
+void
+parse_tracepoint_status (char *p, struct breakpoint *bp,
+ struct uploaded_tp *utp)
+{
+ ULONGEST uval;
+ struct tracepoint *tp = (struct tracepoint *) bp;
+
+ p = unpack_varlen_hex (p, &uval);
+ if (tp)
+ tp->base.hit_count += uval;
+ else
+ utp->hit_count += uval;
+ p = unpack_varlen_hex (p + 1, &uval);
+ if (tp)
+ tp->traceframe_usage += uval;
+ else
+ utp->traceframe_usage += uval;
+ /* Ignore any extra, allowing for future extensions. */
+}
+
/* Given a line of text defining a part of a tracepoint, parse it into
an "uploaded tracepoint". */
else if (strncmp (srctype, "cmd:", strlen ("cmd:")) == 0)
VEC_safe_push (char_ptr, utp->cmd_strings, xstrdup (buf));
}
+ else if (piece == 'V')
+ {
+ utp = get_uploaded_tp (num, addr, utpp);
+
+ parse_tracepoint_status (p, NULL, utp);
+ }
else
{
/* Don't error out, the target might be sending us optional
close (trace_fd);
trace_fd = -1;
- if (trace_filename)
- xfree (trace_filename);
+ xfree (trace_filename);
+ trace_filename = NULL;
}
static void
return -1;
}
+static void
+tfile_get_tracepoint_status (struct breakpoint *tp, struct uploaded_tp *utp)
+{
+ /* Other bits of trace status were collected as part of opening the
+ trace files, so nothing to do here. */
+}
+
/* Given the position of a traceframe in the file, figure out what
address the frame was collected at. This would normally be the
value of a collected PC register, but if not available, we
{
ULONGEST addr = 0;
short tpnum;
- struct breakpoint *tp;
+ struct tracepoint *tp;
off_t saved_offset = cur_offset;
- int gotten;
/* FIXME dig pc out of collected registers. */
/* Fall back to using tracepoint address. */
lseek (trace_fd, tframe_offset, SEEK_SET);
- gotten = read (trace_fd, &tpnum, 2);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 2)
- error (_("Premature end of file while reading trace file"));
+ tfile_read ((gdb_byte *) &tpnum, 2);
tpnum = (short) extract_signed_integer ((gdb_byte *) &tpnum, 2,
gdbarch_byte_order
(target_gdbarch));
tp = get_tracepoint_by_number_on_target (tpnum);
/* FIXME this is a poor heuristic if multiple locations. */
- if (tp && tp->loc)
- addr = tp->loc->address;
+ if (tp && tp->base.loc)
+ addr = tp->base.loc->address;
/* Restore our seek position. */
cur_offset = saved_offset;
return addr;
}
+/* Make tfile's selected traceframe match GDB's selected
+ traceframe. */
+
+static void
+set_tfile_traceframe (void)
+{
+ int newnum;
+
+ if (cur_traceframe_number == get_traceframe_number ())
+ return;
+
+ /* Avoid recursion, tfile_trace_find calls us again. */
+ cur_traceframe_number = get_traceframe_number ();
+
+ newnum = target_trace_find (tfind_number,
+ get_traceframe_number (), 0, 0, NULL);
+
+ /* Should not happen. If it does, all bets are off. */
+ if (newnum != get_traceframe_number ())
+ warning (_("could not set tfile's traceframe"));
+}
+
/* Given a type of search and some parameters, scan the collection of
traceframes in the file looking for a match. When found, return
both the traceframe and tracepoint number, otherwise -1 for
ULONGEST addr1, ULONGEST addr2, int *tpp)
{
short tpnum;
- int tfnum = 0, found = 0, gotten;
+ int tfnum = 0, found = 0;
unsigned int data_size;
- struct breakpoint *tp;
+ struct tracepoint *tp;
off_t offset, tframe_offset;
ULONGEST tfaddr;
+ /* Lookups other than by absolute frame number depend on the current
+ trace selected, so make sure it is correct on the tfile end
+ first. */
+ if (type != tfind_number)
+ set_tfile_traceframe ();
+ else if (num == -1)
+ {
+ if (tpp)
+ *tpp = -1;
+ return -1;
+ }
+
lseek (trace_fd, trace_frames_offset, SEEK_SET);
offset = trace_frames_offset;
while (1)
{
tframe_offset = offset;
- gotten = read (trace_fd, &tpnum, 2);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 2)
- error (_("Premature end of file while reading trace file"));
+ tfile_read ((gdb_byte *) &tpnum, 2);
tpnum = (short) extract_signed_integer ((gdb_byte *) &tpnum, 2,
gdbarch_byte_order
(target_gdbarch));
offset += 2;
if (tpnum == 0)
break;
- gotten = read (trace_fd, &data_size, 4);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 4)
- error (_("Premature end of file while reading trace file"));
+ tfile_read ((gdb_byte *) &data_size, 4);
data_size = (unsigned int) extract_unsigned_integer
((gdb_byte *) &data_size, 4,
gdbarch_byte_order (target_gdbarch));
*tpp = tpnum;
cur_offset = offset;
cur_data_size = data_size;
+ cur_traceframe_number = tfnum;
return tfnum;
}
/* Skip past the traceframe's data. */
return -1;
}
-/* Look for a block of saved registers in the traceframe, and get the
- requested register from it. */
+/* Prototype of the callback passed to tframe_walk_blocks. */
+typedef int (*walk_blocks_callback_func) (char blocktype, void *data);
-static void
-tfile_fetch_registers (struct target_ops *ops,
- struct regcache *regcache, int regno)
+/* Callback for traceframe_walk_blocks, used to find a given block
+ type in a traceframe. */
+
+static int
+match_blocktype (char blocktype, void *data)
{
- struct gdbarch *gdbarch = get_regcache_arch (regcache);
- char block_type;
- int pos, offset, regn, regsize, gotten, pc_regno;
- unsigned short mlen;
- char *regs;
+ char *wantedp = data;
- /* An uninitialized reg size says we're not going to be
- successful at getting register blocks. */
- if (!trace_regblock_size)
- return;
+ if (*wantedp == blocktype)
+ return 1;
- regs = alloca (trace_regblock_size);
+ return 0;
+}
- lseek (trace_fd, cur_offset, SEEK_SET);
- pos = 0;
+/* Walk over all traceframe block starting at POS offset from
+ CUR_OFFSET, and call CALLBACK for each block found, passing in DATA
+ unmodified. If CALLBACK returns true, this returns the position in
+ the traceframe where the block is found, relative to the start of
+ the traceframe (cur_offset). Returns -1 if no callback call
+ returned true, indicating that all blocks have been walked. */
+
+static int
+traceframe_walk_blocks (walk_blocks_callback_func callback,
+ int pos, void *data)
+{
+ /* Iterate through a traceframe's blocks, looking for a block of the
+ requested type. */
+
+ lseek (trace_fd, cur_offset + pos, SEEK_SET);
while (pos < cur_data_size)
{
- gotten = read (trace_fd, &block_type, 1);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 1)
- error (_("Premature end of file while reading trace file"));
+ unsigned short mlen;
+ char block_type;
+
+ tfile_read (&block_type, 1);
++pos;
+
+ if ((*callback) (block_type, data))
+ return pos;
+
switch (block_type)
{
case 'R':
- gotten = read (trace_fd, regs, trace_regblock_size);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < trace_regblock_size)
- error (_("Premature end of file while reading trace file"));
-
- /* Assume the block is laid out in GDB register number order,
- each register with the size that it has in GDB. */
- offset = 0;
- for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++)
- {
- regsize = register_size (gdbarch, regn);
- /* Make sure we stay within block bounds. */
- if (offset + regsize >= trace_regblock_size)
- break;
- if (!regcache_valid_p (regcache, regn))
- {
- if (regno == regn)
- {
- regcache_raw_supply (regcache, regno, regs + offset);
- break;
- }
- else if (regno == -1)
- {
- regcache_raw_supply (regcache, regn, regs + offset);
- }
- }
- offset += regsize;
- }
- return;
+ lseek (trace_fd, cur_offset + pos + trace_regblock_size, SEEK_SET);
+ pos += trace_regblock_size;
+ break;
case 'M':
- lseek (trace_fd, 8, SEEK_CUR);
- gotten = read (trace_fd, &mlen, 2);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 2)
- error (_("Premature end of file while reading trace file"));
+ lseek (trace_fd, cur_offset + pos + 8, SEEK_SET);
+ tfile_read ((gdb_byte *) &mlen, 2);
mlen = (unsigned short)
- extract_unsigned_integer ((gdb_byte *) &mlen, 2,
- gdbarch_byte_order
- (target_gdbarch));
+ extract_unsigned_integer ((gdb_byte *) &mlen, 2,
+ gdbarch_byte_order
+ (target_gdbarch));
lseek (trace_fd, mlen, SEEK_CUR);
pos += (8 + 2 + mlen);
break;
case 'V':
- lseek (trace_fd, 4 + 8, SEEK_CUR);
+ lseek (trace_fd, cur_offset + pos + 4 + 8, SEEK_SET);
pos += (4 + 8);
break;
default:
}
}
- /* We get here if no register data has been found. Although we
- don't like making up numbers, GDB has all manner of troubles when
- the target says some register is not available. Filling in with
- zeroes is a reasonable fallback. */
+ return -1;
+}
+
+/* Convenience wrapper around traceframe_walk_blocks. Looks for the
+ position offset of a block of type TYPE_WANTED in the current trace
+ frame, starting at POS. Returns -1 if no such block was found. */
+
+static int
+traceframe_find_block_type (char type_wanted, int pos)
+{
+ return traceframe_walk_blocks (match_blocktype, pos, &type_wanted);
+}
+
+/* Look for a block of saved registers in the traceframe, and get the
+ requested register from it. */
+
+static void
+tfile_fetch_registers (struct target_ops *ops,
+ struct regcache *regcache, int regno)
+{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ int offset, regn, regsize, pc_regno;
+ char *regs;
+
+ /* An uninitialized reg size says we're not going to be
+ successful at getting register blocks. */
+ if (!trace_regblock_size)
+ return;
+
+ set_tfile_traceframe ();
+
+ regs = alloca (trace_regblock_size);
+
+ if (traceframe_find_block_type ('R', 0) >= 0)
+ {
+ tfile_read (regs, trace_regblock_size);
+
+ /* Assume the block is laid out in GDB register number order,
+ each register with the size that it has in GDB. */
+ offset = 0;
+ for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++)
+ {
+ regsize = register_size (gdbarch, regn);
+ /* Make sure we stay within block bounds. */
+ if (offset + regsize >= trace_regblock_size)
+ break;
+ if (regcache_register_status (regcache, regn) == REG_UNKNOWN)
+ {
+ if (regno == regn)
+ {
+ regcache_raw_supply (regcache, regno, regs + offset);
+ break;
+ }
+ else if (regno == -1)
+ {
+ regcache_raw_supply (regcache, regn, regs + offset);
+ }
+ }
+ offset += regsize;
+ }
+ return;
+ }
+
+ /* We get here if no register data has been found. Mark registers
+ as unavailable. */
for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++)
regcache_raw_supply (regcache, regn, NULL);
pc_regno = gdbarch_pc_regnum (gdbarch);
if (pc_regno >= 0 && (regno == -1 || regno == pc_regno))
{
- struct breakpoint *tp = get_tracepoint (tracepoint_number);
+ struct tracepoint *tp = get_tracepoint (tracepoint_number);
- if (tp && tp->loc)
+ if (tp && tp->base.loc)
{
/* But don't try to guess if tracepoint is multi-location... */
- if (tp->loc->next)
+ if (tp->base.loc->next)
{
warning (_("Tracepoint %d has multiple "
"locations, cannot infer $pc"),
- tp->number);
+ tp->base.number);
return;
}
/* ... or does while-stepping. */
{
warning (_("Tracepoint %d does while-stepping, "
"cannot infer $pc"),
- tp->number);
+ tp->base.number);
return;
}
store_unsigned_integer (regs, register_size (gdbarch, pc_regno),
gdbarch_byte_order (gdbarch),
- tp->loc->address);
+ tp->base.loc->address);
regcache_raw_supply (regcache, pc_regno, regs);
}
}
const char *annex, gdb_byte *readbuf,
const gdb_byte *writebuf, ULONGEST offset, LONGEST len)
{
- char block_type;
- int pos, gotten;
- ULONGEST maddr, amt;
- unsigned short mlen;
-
/* We're only doing regular memory for now. */
if (object != TARGET_OBJECT_MEMORY)
return -1;
if (readbuf == NULL)
error (_("tfile_xfer_partial: trace file is read-only"));
- lseek (trace_fd, cur_offset, SEEK_SET);
- pos = 0;
- while (pos < cur_data_size)
+ set_tfile_traceframe ();
+
+ if (traceframe_number != -1)
{
- gotten = read (trace_fd, &block_type, 1);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 1)
- error (_("Premature end of file while reading trace file"));
- ++pos;
- switch (block_type)
+ int pos = 0;
+
+ /* Iterate through the traceframe's blocks, looking for
+ memory. */
+ while ((pos = traceframe_find_block_type ('M', pos)) >= 0)
{
- case 'R':
- lseek (trace_fd, trace_regblock_size, SEEK_CUR);
- pos += trace_regblock_size;
- break;
- case 'M':
- gotten = read (trace_fd, &maddr, 8);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 8)
- error (_("Premature end of file while reading trace file"));
- maddr = extract_unsigned_integer ((gdb_byte *) &maddr, 8,
- gdbarch_byte_order
- (target_gdbarch));
- gotten = read (trace_fd, &mlen, 2);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 2)
- error (_("Premature end of file while reading trace file"));
- mlen = (unsigned short)
- extract_unsigned_integer ((gdb_byte *) &mlen, 2,
- gdbarch_byte_order
- (target_gdbarch));
+ ULONGEST maddr, amt;
+ unsigned short mlen;
+ enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch);
+
+ tfile_read ((gdb_byte *) &maddr, 8);
+ maddr = extract_unsigned_integer ((gdb_byte *) &maddr, 8,
+ byte_order);
+ tfile_read ((gdb_byte *) &mlen, 2);
+ mlen = (unsigned short)
+ extract_unsigned_integer ((gdb_byte *) &mlen, 2, byte_order);
+
/* If the block includes the first part of the desired
range, return as much it has; GDB will re-request the
remainder, which might be in a different block of this
trace frame. */
if (maddr <= offset && offset < (maddr + mlen))
- {
+ {
amt = (maddr + mlen) - offset;
if (amt > len)
amt = len;
- gotten = read (trace_fd, readbuf, amt);
- if (gotten < 0)
- perror_with_name (trace_filename);
- /* While it's acceptable to return less than was
- originally asked for, it's not acceptable to return
- less than what this block claims to contain. */
- else if (gotten < amt)
- error (_("Premature end of file while reading trace file"));
+ tfile_read (readbuf, amt);
return amt;
- }
- lseek (trace_fd, mlen, SEEK_CUR);
+ }
+
+ /* Skip over this block. */
pos += (8 + 2 + mlen);
- break;
- case 'V':
- lseek (trace_fd, 4 + 8, SEEK_CUR);
- pos += (4 + 8);
- break;
- default:
- error (_("Unknown block type '%c' (0x%x) in traceframe"),
- block_type, block_type);
- break;
}
}
for (s = exec_bfd->sections; s; s = s->next)
{
- if ((s->flags & SEC_LOAD) == 0 ||
- (s->flags & SEC_READONLY) == 0)
+ if ((s->flags & SEC_LOAD) == 0
+ || (s->flags & SEC_READONLY) == 0)
continue;
vma = s->vma;
size = bfd_get_section_size (s);
if (vma <= offset && offset < (vma + size))
{
+ ULONGEST amt;
+
amt = (vma + size) - offset;
if (amt > len)
amt = len;
static int
tfile_get_trace_state_variable_value (int tsvnum, LONGEST *val)
{
- char block_type;
- int pos, vnum, gotten;
- unsigned short mlen;
+ int pos;
+
+ set_tfile_traceframe ();
- lseek (trace_fd, cur_offset, SEEK_SET);
pos = 0;
- while (pos < cur_data_size)
+ while ((pos = traceframe_find_block_type ('V', pos)) >= 0)
{
- gotten = read (trace_fd, &block_type, 1);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 1)
- error (_("Premature end of file while reading trace file"));
- ++pos;
- switch (block_type)
- {
- case 'R':
- lseek (trace_fd, trace_regblock_size, SEEK_CUR);
- pos += trace_regblock_size;
- break;
- case 'M':
- lseek (trace_fd, 8, SEEK_CUR);
- gotten = read (trace_fd, &mlen, 2);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 2)
- error (_("Premature end of file while reading trace file"));
- mlen = (unsigned short)
- extract_unsigned_integer ((gdb_byte *) &mlen, 2,
+ int vnum;
+
+ tfile_read ((gdb_byte *) &vnum, 4);
+ vnum = (int) extract_signed_integer ((gdb_byte *) &vnum, 4,
gdbarch_byte_order
- (target_gdbarch));
- lseek (trace_fd, mlen, SEEK_CUR);
- pos += (8 + 2 + mlen);
- break;
- case 'V':
- gotten = read (trace_fd, &vnum, 4);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 4)
- error (_("Premature end of file while reading trace file"));
- vnum = (int) extract_signed_integer ((gdb_byte *) &vnum, 4,
- gdbarch_byte_order
- (target_gdbarch));
- if (tsvnum == vnum)
- {
- gotten = read (trace_fd, val, 8);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 8)
- error (_("Premature end of file while reading trace file"));
- *val = extract_signed_integer ((gdb_byte *)val, 8,
- gdbarch_byte_order
- (target_gdbarch));
- return 1;
- }
- lseek (trace_fd, 8, SEEK_CUR);
- pos += (4 + 8);
- break;
- default:
- error (_("Unknown block type '%c' (0x%x) in traceframe"),
- block_type, block_type);
- break;
+ (target_gdbarch));
+ if (tsvnum == vnum)
+ {
+ tfile_read ((gdb_byte *) val, 8);
+ *val = extract_signed_integer ((gdb_byte *) val, 8,
+ gdbarch_byte_order
+ (target_gdbarch));
+ return 1;
}
+ pos += (4 + 8);
}
+
/* Didn't find anything. */
return 0;
}
static int
tfile_has_stack (struct target_ops *ops)
{
- return 1;
+ return traceframe_number != -1;
}
static int
tfile_has_registers (struct target_ops *ops)
+{
+ return traceframe_number != -1;
+}
+
+static int
+tfile_thread_alive (struct target_ops *ops, ptid_t ptid)
{
return 1;
}
+/* Callback for traceframe_walk_blocks. Builds a traceframe_info
+ object for the tfile target's current traceframe. */
+
+static int
+build_traceframe_info (char blocktype, void *data)
+{
+ struct traceframe_info *info = data;
+
+ switch (blocktype)
+ {
+ case 'M':
+ {
+ struct mem_range *r;
+ ULONGEST maddr;
+ unsigned short mlen;
+
+ tfile_read ((gdb_byte *) &maddr, 8);
+ tfile_read ((gdb_byte *) &mlen, 2);
+
+ r = VEC_safe_push (mem_range_s, info->memory, NULL);
+
+ r->start = maddr;
+ r->length = mlen;
+ break;
+ }
+ case 'V':
+ case 'R':
+ case 'S':
+ {
+ break;
+ }
+ default:
+ warning (_("Unhandled trace block type (%d) '%c ' "
+ "while building trace frame info."),
+ blocktype, blocktype);
+ break;
+ }
+
+ return 0;
+}
+
+static struct traceframe_info *
+tfile_traceframe_info (void)
+{
+ struct traceframe_info *info = XCNEW (struct traceframe_info);
+
+ traceframe_walk_blocks (build_traceframe_info, 0, info);
+ return info;
+}
+
static void
init_tfile_ops (void)
{
tfile_ops.to_xfer_partial = tfile_xfer_partial;
tfile_ops.to_files_info = tfile_files_info;
tfile_ops.to_get_trace_status = tfile_get_trace_status;
+ tfile_ops.to_get_tracepoint_status = tfile_get_tracepoint_status;
tfile_ops.to_trace_find = tfile_trace_find;
tfile_ops.to_get_trace_state_variable_value
= tfile_get_trace_state_variable_value;
tfile_ops.to_has_memory = tfile_has_memory;
tfile_ops.to_has_stack = tfile_has_stack;
tfile_ops.to_has_registers = tfile_has_registers;
+ tfile_ops.to_traceframe_info = tfile_traceframe_info;
+ tfile_ops.to_thread_alive = tfile_thread_alive;
tfile_ops.to_magic = OPS_MAGIC;
}
+void
+free_current_marker (void *arg)
+{
+ struct static_tracepoint_marker **marker_p = arg;
+
+ if (*marker_p != NULL)
+ {
+ release_static_tracepoint_marker (*marker_p);
+ xfree (*marker_p);
+ }
+ else
+ *marker_p = NULL;
+}
+
/* Given a line of text defining a static tracepoint marker, parse it
into a "static tracepoint marker" object. Throws an error is
parsing fails. If PP is non-null, it points to one past the end of
char wrap_indent[80];
char extra_field_indent[80];
- struct ui_stream *stb = ui_out_stream_new (uiout);
- struct cleanup *old_chain = make_cleanup_ui_out_stream_delete (stb);
+ struct ui_out *uiout = current_uiout;
struct cleanup *bkpt_chain;
VEC(breakpoint_p) *tracepoints;
VEC_free (breakpoint_p, tracepoints);
do_cleanups (bkpt_chain);
- do_cleanups (old_chain);
}
static void
VEC(static_tracepoint_marker_p) *markers;
struct cleanup *old_chain;
struct static_tracepoint_marker *marker;
+ struct ui_out *uiout = current_uiout;
int i;
+ /* We don't have to check target_can_use_agent and agent's capability on
+ static tracepoint here, in order to be compatible with older GDBserver.
+ We don't check USE_AGENT is true or not, because static tracepoints
+ don't work without in-process agent, so we don't bother users to type
+ `set agent on' when to use static tracepoint. */
+
old_chain
= make_cleanup_ui_out_table_begin_end (uiout, 5, -1,
"StaticTracepointMarkersTable");
available. */
static struct value *
-sdata_make_value (struct gdbarch *gdbarch, struct internalvar *var)
+sdata_make_value (struct gdbarch *gdbarch, struct internalvar *var,
+ void *ignore)
{
LONGEST size;
gdb_byte *buf;
return allocate_value (builtin_type (gdbarch)->builtin_void);
}
+#if !defined(HAVE_LIBEXPAT)
+
+struct traceframe_info *
+parse_traceframe_info (const char *tframe_info)
+{
+ static int have_warned;
+
+ if (!have_warned)
+ {
+ have_warned = 1;
+ warning (_("Can not parse XML trace frame info; XML support "
+ "was disabled at compile time"));
+ }
+
+ return NULL;
+}
+
+#else /* HAVE_LIBEXPAT */
+
+#include "xml-support.h"
+
+/* Handle the start of a <memory> element. */
+
+static void
+traceframe_info_start_memory (struct gdb_xml_parser *parser,
+ const struct gdb_xml_element *element,
+ void *user_data, VEC(gdb_xml_value_s) *attributes)
+{
+ struct traceframe_info *info = user_data;
+ struct mem_range *r = VEC_safe_push (mem_range_s, info->memory, NULL);
+ ULONGEST *start_p, *length_p;
+
+ start_p = xml_find_attribute (attributes, "start")->value;
+ length_p = xml_find_attribute (attributes, "length")->value;
+
+ r->start = *start_p;
+ r->length = *length_p;
+}
+
+/* Discard the constructed trace frame info (if an error occurs). */
+
+static void
+free_result (void *p)
+{
+ struct traceframe_info *result = p;
+
+ free_traceframe_info (result);
+}
+
+/* The allowed elements and attributes for an XML memory map. */
+
+static const struct gdb_xml_attribute memory_attributes[] = {
+ { "start", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
+ { "length", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
+ { NULL, GDB_XML_AF_NONE, NULL, NULL }
+};
+
+static const struct gdb_xml_element traceframe_info_children[] = {
+ { "memory", memory_attributes, NULL,
+ GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL,
+ traceframe_info_start_memory, NULL },
+ { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
+};
+
+static const struct gdb_xml_element traceframe_info_elements[] = {
+ { "traceframe-info", NULL, traceframe_info_children, GDB_XML_EF_NONE,
+ NULL, NULL },
+ { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
+};
+
+/* Parse a traceframe-info XML document. */
+
+struct traceframe_info *
+parse_traceframe_info (const char *tframe_info)
+{
+ struct traceframe_info *result;
+ struct cleanup *back_to;
+
+ result = XCNEW (struct traceframe_info);
+ back_to = make_cleanup (free_result, result);
+
+ if (gdb_xml_parse_quick (_("trace frame info"),
+ "traceframe-info.dtd", traceframe_info_elements,
+ tframe_info, result) == 0)
+ {
+ /* Parsed successfully, keep the result. */
+ discard_cleanups (back_to);
+
+ return result;
+ }
+
+ do_cleanups (back_to);
+ return NULL;
+}
+
+#endif /* HAVE_LIBEXPAT */
+
+/* Returns the traceframe_info object for the current traceframe.
+ This is where we avoid re-fetching the object from the target if we
+ already have it cached. */
+
+static struct traceframe_info *
+get_traceframe_info (void)
+{
+ if (traceframe_info == NULL)
+ traceframe_info = target_traceframe_info ();
+
+ return traceframe_info;
+}
+
+/* If the target supports the query, return in RESULT the set of
+ collected memory in the current traceframe, found within the LEN
+ bytes range starting at MEMADDR. Returns true if the target
+ supports the query, otherwise returns false, and RESULT is left
+ undefined. */
+
+int
+traceframe_available_memory (VEC(mem_range_s) **result,
+ CORE_ADDR memaddr, ULONGEST len)
+{
+ struct traceframe_info *info = get_traceframe_info ();
+
+ if (info != NULL)
+ {
+ struct mem_range *r;
+ int i;
+
+ *result = NULL;
+
+ for (i = 0; VEC_iterate (mem_range_s, info->memory, i, r); i++)
+ if (mem_ranges_overlap (r->start, r->length, memaddr, len))
+ {
+ ULONGEST lo1, hi1, lo2, hi2;
+ struct mem_range *nr;
+
+ lo1 = memaddr;
+ hi1 = memaddr + len;
+
+ lo2 = r->start;
+ hi2 = r->start + r->length;
+
+ nr = VEC_safe_push (mem_range_s, *result, NULL);
+
+ nr->start = max (lo1, lo2);
+ nr->length = min (hi1, hi2) - nr->start;
+ }
+
+ normalize_mem_ranges (*result);
+ return 1;
+ }
+
+ return 0;
+}
+
+/* Implementation of `sdata' variable. */
+
+static const struct internalvar_funcs sdata_funcs =
+{
+ sdata_make_value,
+ NULL,
+ NULL
+};
+
/* module initialization */
void
_initialize_tracepoint (void)
value with a void typed value, and when we get here, gdbarch
isn't initialized yet. At this point, we're quite sure there
isn't another convenience variable of the same name. */
- create_internalvar_type_lazy ("_sdata", sdata_make_value);
+ create_internalvar_type_lazy ("_sdata", &sdata_funcs, NULL);
traceframe_number = -1;
tracepoint_number = -1;
add_com ("tstatus", class_trace, trace_status_command,
_("Display the status of the current trace data collection."));
- add_com ("tstop", class_trace, trace_stop_command,
- _("Stop trace data collection."));
+ add_com ("tstop", class_trace, trace_stop_command, _("\
+Stop trace data collection.\n\
+Usage: tstop [ <notes> ... ]\n\
+Any arguments supplied are recorded with the trace as a stop reason and\n\
+reported by tstatus (if the target supports trace notes)."));
- add_com ("tstart", class_trace, trace_start_command,
- _("Start trace data collection."));
+ add_com ("tstart", class_trace, trace_start_command, _("\
+Start trace data collection.\n\
+Usage: tstart [ <notes> ... ]\n\
+Any arguments supplied are recorded with the trace as a note and\n\
+reported by tstatus (if the target supports trace notes)."));
add_com ("end", class_trace, end_actions_pseudocommand, _("\
Ends a list of commands or actions.\n\
&setlist,
&showlist);
+ add_setshow_string_cmd ("trace-user", class_trace,
+ &trace_user, _("\
+Set the user name to use for current and future trace runs"), _("\
+Show the user name to use for current and future trace runs"), NULL,
+ set_trace_user, NULL,
+ &setlist, &showlist);
+
+ add_setshow_string_cmd ("trace-notes", class_trace,
+ &trace_notes, _("\
+Set notes string to use for current and future trace runs"), _("\
+Show the notes string to use for current and future trace runs"), NULL,
+ set_trace_notes, NULL,
+ &setlist, &showlist);
+
+ add_setshow_string_cmd ("trace-stop-notes", class_trace,
+ &trace_stop_notes, _("\
+Set notes string to use for future tstop commands"), _("\
+Show the notes string to use for future tstop commands"), NULL,
+ set_trace_stop_notes, NULL,
+ &setlist, &showlist);
+
init_tfile_ops ();
add_target (&tfile_ops);
projects / deliverable / binutils-gdb.git / blobdiff