/* Everything about breakpoints, for GDB.
- Copyright (C) 1986-2019 Free Software Foundation, Inc.
+ Copyright (C) 1986-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "gdb_regex.h"
#include "probe.h"
#include "cli/cli-utils.h"
-#include "continuations.h"
#include "stack.h"
-#include "skip.h"
#include "ax-gdb.h"
#include "dummy-frame.h"
#include "interps.h"
-#include "common/format.h"
+#include "gdbsupport/format.h"
#include "thread-fsm.h"
#include "tid-parse.h"
#include "cli/cli-style.h"
-#include "mi/mi-main.h"
/* readline include files */
-#include "readline/readline.h"
-#include "readline/history.h"
+#include "readline/tilde.h"
/* readline defines this. */
#undef savestring
#include "extension.h"
#include <algorithm>
#include "progspace-and-thread.h"
-#include "common/array-view.h"
-#include "common/gdb_optional.h"
-
-/* Enums for exception-handling support. */
-enum exception_event_kind
-{
- EX_EVENT_THROW,
- EX_EVENT_RETHROW,
- EX_EVENT_CATCH
-};
+#include "gdbsupport/array-view.h"
+#include "gdbsupport/gdb_optional.h"
/* Prototypes for local functions. */
static void update_global_location_list_nothrow (enum ugll_insert_mode);
-static int is_hardware_watchpoint (const struct breakpoint *bpt);
-
static void insert_breakpoint_locations (void);
static void trace_pass_command (const char *, int);
static void set_tracepoint_count (int num);
-static int is_masked_watchpoint (const struct breakpoint *b);
+static bool is_masked_watchpoint (const struct breakpoint *b);
static struct bp_location **get_first_locp_gte_addr (CORE_ADDR address);
/* Breakpoints set on probes. */
static struct breakpoint_ops bkpt_probe_breakpoint_ops;
+/* Tracepoints set on probes. */
+static struct breakpoint_ops tracepoint_probe_breakpoint_ops;
+
/* Dynamic printf class type. */
struct breakpoint_ops dprintf_breakpoint_ops;
/* True if dprintf commands should continue to operate even if GDB
has disconnected. */
-static int disconnected_dprintf = 1;
+static bool disconnected_dprintf = true;
struct command_line *
breakpoint_commands (struct breakpoint *b)
/* Flag indicating that a command has proceeded the inferior past the
current breakpoint. */
-static int breakpoint_proceeded;
+static bool breakpoint_proceeded;
const char *
bpdisp_text (enum bpdisp disp)
value);
}
-/* If 1, gdb will automatically use hardware breakpoints for breakpoints
+/* If true, gdb will automatically use hardware breakpoints for breakpoints
set with "break" but falling in read-only memory.
- If 0, gdb will warn about such breakpoints, but won't automatically
+ If false, gdb will warn about such breakpoints, but won't automatically
use hardware breakpoints. */
-static int automatic_hardware_breakpoints;
+static bool automatic_hardware_breakpoints;
static void
show_automatic_hardware_breakpoints (struct ui_file *file, int from_tty,
struct cmd_list_element *c,
breakpoints until the next resume, and removes them again when the
target fully stops. This is a bit safer in case GDB crashes while
processing user input. */
-static int always_inserted_mode = 0;
+static bool always_inserted_mode = false;
static void
show_always_inserted_mode (struct ui_file *file, int from_tty,
no threads under GDB's control yet. */
return 1;
}
- else if (target_has_execution)
+ else
{
if (always_inserted_mode)
{
return 1;
}
- if (threads_are_executing ())
- return 1;
+ for (inferior *inf : all_inferiors ())
+ if (inf->has_execution ()
+ && threads_are_executing (inf->process_target ()))
+ return 1;
/* Don't remove breakpoints yet if, even though all threads are
stopped, we still have events to process. */
static int overlay_events_enabled;
/* See description in breakpoint.h. */
-int target_exact_watchpoints = 0;
+bool target_exact_watchpoints = false;
/* Walk the following statement or block through all breakpoints.
ALL_BREAKPOINTS_SAFE does so even if the statement deletes the
/* Chains of all breakpoints defined. */
-struct breakpoint *breakpoint_chain;
+static struct breakpoint *breakpoint_chain;
-/* Array is sorted by bp_locations_compare - primarily by the ADDRESS. */
+/* Array is sorted by bp_location_is_less_than - primarily by the ADDRESS. */
static struct bp_location **bp_locations;
/* A comparison function for bp_location AP and BP that is used by
bsearch. This comparison function only cares about addresses, unlike
- the more general bp_locations_compare function. */
+ the more general bp_location_is_less_than function. */
static int
bp_locations_compare_addrs (const void *ap, const void *bp)
xsnprintf (number, sizeof (number), "%d", b->number);
if (strncmp (number, text, len) == 0)
- {
- gdb::unique_xmalloc_ptr<char> copy (xstrdup (number));
- tracker.add_completion (std::move (copy));
- }
+ tracker.add_completion (make_unique_xstrdup (number));
}
return;
return type == bp_longjmp || type == bp_exception;
}
-int
+/* See breakpoint.h. */
+
+bool
is_tracepoint (const struct breakpoint *b)
{
return is_tracepoint_type (b->type);
}
}
-\f
-
-/* Return true if BPT is either a software breakpoint or a hardware
- breakpoint. */
+/* See breakpoint.h. */
-int
+bool
is_breakpoint (const struct breakpoint *bpt)
{
return (bpt->type == bp_breakpoint
/* Return true if BPT is of any hardware watchpoint kind. */
-static int
+static bool
is_hardware_watchpoint (const struct breakpoint *bpt)
{
return (bpt->type == bp_hardware_watchpoint
|| bpt->type == bp_access_watchpoint);
}
-/* Return true if BPT is of any watchpoint kind, hardware or
- software. */
+/* See breakpoint.h. */
-int
+bool
is_watchpoint (const struct breakpoint *bpt)
{
return (is_hardware_watchpoint (bpt)
/* Returns true if B is a software watchpoint that is not watching any
memory (e.g., "watch $pc"). */
-static int
+static bool
is_no_memory_software_watchpoint (struct breakpoint *b)
{
return (b->type == bp_watchpoint
to the user when the old value and the new value may actually
be completely different objects. */
b->val = NULL;
- b->val_valid = 0;
+ b->val_valid = false;
/* Note that unlike with breakpoints, the watchpoint's condition
expression is stored in the breakpoint object, not in the
if (b->val_bitsize != 0)
v = extract_bitfield_from_watchpoint_value (b, v);
b->val = release_value (v);
- b->val_valid = 1;
+ b->val_valid = true;
}
frame_pspace = get_frame_program_space (get_selected_frame (NULL));
if we aren't attached to any process yet, we should still
insert breakpoints. */
if (!gdbarch_has_global_breakpoints (target_gdbarch ())
- && inferior_ptid == null_ptid)
+ && (inferior_ptid == null_ptid || !target_has_execution))
continue;
val = insert_bp_location (bl, &tmp_error_stream, &disabled_breaks,
if we aren't attached to any process yet, we should still
insert breakpoints. */
if (!gdbarch_has_global_breakpoints (target_gdbarch ())
- && inferior_ptid == null_ptid)
+ && (inferior_ptid == null_ptid || !target_has_execution))
continue;
val = insert_bp_location (bl, &tmp_error_stream, &disabled_breaks,
}
}
-/* Remove breakpoints of inferior INF. */
+/* See breakpoint.h. */
-int
+void
remove_breakpoints_inf (inferior *inf)
{
struct bp_location *bl, **blp_tmp;
{
val = remove_breakpoint (bl);
if (val != 0)
- return val;
+ return;
}
}
- return 0;
}
static int internal_breakpoint_number = -1;
/* Reset val field to force reread of starting value in
insert_breakpoints. */
w->val.reset (nullptr);
- w->val_valid = 0;
+ w->val_valid = false;
}
}
}
}
return 0;
}
-\f
-/* bpstat stuff. External routines' interfaces are documented
- in breakpoint.h. */
+/* See breakpoint.h. */
-int
-is_catchpoint (struct breakpoint *ep)
+bool
+is_catchpoint (struct breakpoint *b)
{
- return (ep->type == bp_catchpoint);
+ return (b->type == bp_catchpoint);
}
/* Frees any storage that is part of a bpstat. Does not walk the
/* See breakpoint.h. */
-int
+bool
bpstat_explains_signal (bpstat bsp, enum gdb_signal sig)
{
for (; bsp != NULL; bsp = bsp->next)
/* A moribund location can never explain a signal other than
GDB_SIGNAL_TRAP. */
if (sig == GDB_SIGNAL_TRAP)
- return 1;
+ return true;
}
else
{
if (bsp->breakpoint_at->ops->explains_signal (bsp->breakpoint_at,
sig))
- return 1;
+ return true;
}
}
- return 0;
+ return false;
}
/* Put in *NUM the breakpoint number of the first breakpoint we are
watchpoint_value_print (struct value *val, struct ui_file *stream)
{
if (val == NULL)
- fprintf_unfiltered (stream, _("<unreadable>"));
+ fprintf_styled (stream, metadata_style.style (), _("<unreadable>"));
else
{
struct value_print_options opts;
struct thread_info *thr = inferior_thread ();
uiout->text ("Thread ");
- uiout->field_fmt ("thread-id", "%s", print_thread_id (thr));
+ uiout->field_string ("thread-id", print_thread_id (thr));
name = thr->name != NULL ? thr->name : target_thread_name (thr);
if (name != NULL)
{
uiout->text (" \"");
- uiout->field_fmt ("name", "%s", name);
+ uiout->field_string ("name", name);
uiout->text ("\"");
}
{
bs->old_val = b->val;
b->val = release_value (new_val);
- b->val_valid = 1;
+ b->val_valid = true;
if (new_val != NULL)
value_free_to_mark (mark);
return WP_VALUE_CHANGED;
if (uiout->is_mi_like_p ())
uiout->field_string
("reason", async_reason_lookup (EXEC_ASYNC_WATCHPOINT_SCOPE));
- uiout->text ("\nWatchpoint ");
- uiout->field_int ("wpnum", b->number);
- uiout->text (" deleted because the program has left the block in\n"
- "which its expression is valid.\n");
+ uiout->message ("\nWatchpoint %pF deleted because the program has "
+ "left the block in\n"
+ "which its expression is valid.\n",
+ signed_field ("wpnum", b->number));
}
/* Make sure the watchpoint's commands aren't executed. */
retval.main_action = BPSTAT_WHAT_KEEP_CHECKING;
retval.call_dummy = STOP_NONE;
- retval.is_longjmp = 0;
+ retval.is_longjmp = false;
for (bs = bs_head; bs != NULL; bs = bs->next)
{
}
else
{
- /* There was a catchpoint, but we're not stopping.
- This requires no further action. */
+ /* Some catchpoints are implemented with breakpoints.
+ For those, we need to step over the breakpoint. */
+ if (bs->bp_location_at->loc_type != bp_loc_other)
+ this_action = BPSTAT_WHAT_SINGLE;
}
break;
case bp_jit_event:
}
}
-/* Nonzero if we should step constantly (e.g. watchpoints on machines
- without hardware support). This isn't related to a specific bpstat,
- just to things like whether watchpoints are set. */
+/* See breakpoint.h. */
-int
-bpstat_should_step (void)
+bool
+bpstat_should_step ()
{
struct breakpoint *b;
ALL_BREAKPOINTS (b)
if (breakpoint_enabled (b) && b->type == bp_watchpoint && b->loc != NULL)
- return 1;
- return 0;
+ return true;
+ return false;
}
-int
+/* See breakpoint.h. */
+
+bool
bpstat_causes_stop (bpstat bs)
{
for (; bs != NULL; bs = bs->next)
if (bs->stop)
- return 1;
+ return true;
- return 0;
+ return false;
}
\f
if (sym)
{
uiout->text ("in ");
- uiout->field_string ("func", SYMBOL_PRINT_NAME (sym),
- ui_out_style_kind::FUNCTION);
+ uiout->field_string ("func", sym->print_name (),
+ function_name_style.style ());
uiout->text (" ");
uiout->wrap_hint (wrap_indent_at_field (uiout, "what"));
uiout->text ("at ");
}
uiout->field_string ("file",
symtab_to_filename_for_display (loc->symtab),
- ui_out_style_kind::FILE);
+ file_name_style.style ());
uiout->text (":");
if (uiout->is_mi_like_p ())
uiout->field_string ("fullname", symtab_to_fullname (loc->symtab));
- uiout->field_int ("line", loc->line_number);
+ uiout->field_signed ("line", loc->line_number);
}
else if (loc)
{
}
}
-/* Print B to gdb_stdout. */
+/* Print B to gdb_stdout. If RAW_LOC, print raw breakpoint locations
+ instead of going via breakpoint_ops::print_one. This makes "maint
+ info breakpoints" show the software breakpoint locations of
+ catchpoints, which are considered internal implementation
+ detail. */
static void
print_one_breakpoint_location (struct breakpoint *b,
struct bp_location *loc,
int loc_number,
struct bp_location **last_loc,
- int allflag)
+ int allflag, bool raw_loc)
{
struct command_line *l;
static char bpenables[] = "nynny";
if (part_of_multiple)
uiout->field_fmt ("number", "%d.%d", b->number, loc_number);
else
- uiout->field_int ("number", b->number);
+ uiout->field_signed ("number", b->number);
/* 2 */
annotate_field (1);
uiout->field_fmt ("enabled", "%c", bpenables[(int) b->enable_state]);
/* 5 and 6 */
- if (b->ops != NULL && b->ops->print_one != NULL)
- {
- /* Although the print_one can possibly print all locations,
- calling it here is not likely to get any nice result. So,
- make sure there's just one location. */
- gdb_assert (b->loc == NULL || b->loc->next == NULL);
- b->ops->print_one (b, last_loc);
- }
+ if (!raw_loc && b->ops != NULL && b->ops->print_one != NULL)
+ b->ops->print_one (b, last_loc);
else
- switch (b->type)
- {
- case bp_none:
- internal_error (__FILE__, __LINE__,
- _("print_one_breakpoint: bp_none encountered\n"));
- break;
-
- case bp_watchpoint:
- case bp_hardware_watchpoint:
- case bp_read_watchpoint:
- case bp_access_watchpoint:
+ {
+ if (is_watchpoint (b))
{
struct watchpoint *w = (struct watchpoint *) b;
annotate_field (5);
uiout->field_string ("what", w->exp_string);
}
- break;
-
- case bp_breakpoint:
- case bp_hardware_breakpoint:
- case bp_single_step:
- case bp_until:
- case bp_finish:
- case bp_longjmp:
- case bp_longjmp_resume:
- case bp_longjmp_call_dummy:
- case bp_exception:
- case bp_exception_resume:
- case bp_step_resume:
- case bp_hp_step_resume:
- case bp_watchpoint_scope:
- case bp_call_dummy:
- case bp_std_terminate:
- case bp_shlib_event:
- case bp_thread_event:
- case bp_overlay_event:
- case bp_longjmp_master:
- case bp_std_terminate_master:
- case bp_exception_master:
- case bp_tracepoint:
- case bp_fast_tracepoint:
- case bp_static_tracepoint:
- case bp_dprintf:
- case bp_jit_event:
- case bp_gnu_ifunc_resolver:
- case bp_gnu_ifunc_resolver_return:
- if (opts.addressprint)
- {
- annotate_field (4);
- if (header_of_multiple)
- uiout->field_string ("addr", "<MULTIPLE>");
- else if (b->loc == NULL || loc->shlib_disabled)
- uiout->field_string ("addr", "<PENDING>");
- else
- uiout->field_core_addr ("addr",
- loc->gdbarch, loc->address);
- }
- annotate_field (5);
- if (!header_of_multiple)
- print_breakpoint_location (b, loc);
- if (b->loc)
- *last_loc = b->loc;
- break;
- }
-
+ else if (!is_catchpoint (b) || is_exception_catchpoint (b)
+ || is_ada_exception_catchpoint (b))
+ {
+ if (opts.addressprint)
+ {
+ annotate_field (4);
+ if (header_of_multiple)
+ uiout->field_string ("addr", "<MULTIPLE>",
+ metadata_style.style ());
+ else if (b->loc == NULL || loc->shlib_disabled)
+ uiout->field_string ("addr", "<PENDING>",
+ metadata_style.style ());
+ else
+ uiout->field_core_addr ("addr",
+ loc->gdbarch, loc->address);
+ }
+ annotate_field (5);
+ if (!header_of_multiple)
+ print_breakpoint_location (b, loc);
+ if (b->loc)
+ *last_loc = b->loc;
+ }
+ }
if (loc != NULL && !header_of_multiple)
{
/* FIXME: This seems to be redundant and lost here; see the
"stop only in" line a little further down. */
uiout->text (" thread ");
- uiout->field_int ("thread", b->thread);
+ uiout->field_signed ("thread", b->thread);
}
else if (b->task != 0)
{
uiout->text (" task ");
- uiout->field_int ("task", b->task);
+ uiout->field_signed ("task", b->task);
}
}
&& breakpoint_condition_evaluation_mode ()
== condition_evaluation_target)
{
- uiout->text (" (");
- uiout->field_string ("evaluated-by",
- bp_condition_evaluator (b));
- uiout->text (" evals)");
+ uiout->message (" (%pF evals)",
+ string_field ("evaluated-by",
+ bp_condition_evaluator (b)));
}
uiout->text ("\n");
}
/* FIXME should make an annotation for this. */
uiout->text ("\tstop only in thread ");
if (uiout->is_mi_like_p ())
- uiout->field_int ("thread", b->thread);
+ uiout->field_signed ("thread", b->thread);
else
{
struct thread_info *thr = find_thread_global_id (b->thread);
else
uiout->text ("\tbreakpoint");
uiout->text (" already hit ");
- uiout->field_int ("times", b->hit_count);
+ uiout->field_signed ("times", b->hit_count);
if (b->hit_count == 1)
uiout->text (" time\n");
else
{
/* Output the count also if it is zero, but only if this is mi. */
if (uiout->is_mi_like_p ())
- uiout->field_int ("times", b->hit_count);
+ uiout->field_signed ("times", b->hit_count);
}
}
if (!part_of_multiple && b->ignore_count)
{
annotate_field (8);
- uiout->text ("\tignore next ");
- uiout->field_int ("ignore", b->ignore_count);
- uiout->text (" hits\n");
+ uiout->message ("\tignore next %pF hits\n",
+ signed_field ("ignore", b->ignore_count));
}
/* Note that an enable count of 1 corresponds to "enable once"
uiout->text ("additional ");
else
uiout->text ("next ");
- uiout->field_int ("enable", b->enable_count);
+ uiout->field_signed ("enable", b->enable_count);
uiout->text (" hits\n");
}
if (tp->traceframe_usage)
{
uiout->text ("\ttrace buffer usage ");
- uiout->field_int ("traceframe-usage", tp->traceframe_usage);
+ uiout->field_signed ("traceframe-usage", tp->traceframe_usage);
uiout->text (" bytes\n");
}
}
{
annotate_field (10);
uiout->text ("\tpass count ");
- uiout->field_int ("pass", t->pass_count);
+ uiout->field_signed ("pass", t->pass_count);
uiout->text (" \n");
}
|| fix_multi_location_breakpoint_output_globally);
gdb::optional<ui_out_emit_tuple> bkpt_tuple_emitter (gdb::in_place, uiout, "bkpt");
- print_one_breakpoint_location (b, NULL, 0, last_loc, allflag);
+ print_one_breakpoint_location (b, NULL, 0, last_loc, allflag, false);
/* The mi2 broken format: the main breakpoint tuple ends here, the locations
are outside. */
/* If this breakpoint has custom print function,
it's already printed. Otherwise, print individual
locations, if any. */
- if (b->ops == NULL || b->ops->print_one == NULL)
+ if (b->ops == NULL
+ || b->ops->print_one == NULL
+ || allflag)
{
/* If breakpoint has a single location that is disabled, we
print it as if it had several locations, since otherwise it's
situation.
Note that while hardware watchpoints have several locations
- internally, that's not a property exposed to user. */
- if (b->loc
- && !is_hardware_watchpoint (b)
- && (b->loc->next || !b->loc->enabled))
+ internally, that's not a property exposed to users.
+
+ Likewise, while catchpoints may be implemented with
+ breakpoints (e.g., catch throw), that's not a property
+ exposed to users. We do however display the internal
+ breakpoint locations with "maint info breakpoints". */
+ if (!is_hardware_watchpoint (b)
+ && (!is_catchpoint (b) || is_exception_catchpoint (b)
+ || is_ada_exception_catchpoint (b))
+ && (allflag
+ || (b->loc && (b->loc->next || !b->loc->enabled))))
{
gdb::optional<ui_out_emit_list> locations_list;
for (bp_location *loc = b->loc; loc != NULL; loc = loc->next, ++n)
{
ui_out_emit_tuple loc_tuple_emitter (uiout, NULL);
- print_one_breakpoint_location (b, loc, n, last_loc, allflag);
+ print_one_breakpoint_location (b, loc, n, last_loc,
+ allflag, allflag);
}
}
}
return b->loc == NULL;
}
-/* Print information on user settable breakpoint (watchpoint, etc)
- number BNUM. If BNUM is -1 print all user-settable breakpoints.
- If ALLFLAG is non-zero, include non-user-settable breakpoints. If
- FILTER is non-NULL, call it on each breakpoint and only include the
- ones for which it returns non-zero. Return the total number of
- breakpoints listed. */
+/* Print information on breakpoints (including watchpoints and tracepoints).
+
+ If non-NULL, BP_NUM_LIST is a list of numbers and number ranges as
+ understood by number_or_range_parser. Only breakpoints included in this
+ list are then printed.
+
+ If SHOW_INTERNAL is true, print internal breakpoints.
+
+ If FILTER is non-NULL, call it on each breakpoint and only include the
+ ones for which it returns true.
+
+ Return the total number of breakpoints listed. */
static int
-breakpoint_1 (const char *args, int allflag,
- int (*filter) (const struct breakpoint *))
+breakpoint_1 (const char *bp_num_list, bool show_internal,
+ bool (*filter) (const struct breakpoint *))
{
struct breakpoint *b;
struct bp_location *last_loc = NULL;
if (filter && !filter (b))
continue;
- /* If we have an "args" string, it is a list of breakpoints to
+ /* If we have a BP_NUM_LIST string, it is a list of breakpoints to
accept. Skip the others. */
- if (args != NULL && *args != '\0')
+ if (bp_num_list != NULL && *bp_num_list != '\0')
{
- if (allflag && parse_and_eval_long (args) != b->number)
+ if (show_internal && parse_and_eval_long (bp_num_list) != b->number)
continue;
- if (!allflag && !number_is_in_list (args, b->number))
+ if (!show_internal && !number_is_in_list (bp_num_list, b->number))
continue;
}
- if (allflag || user_breakpoint_p (b))
+ if (show_internal || user_breakpoint_p (b))
{
int addr_bit, type_len;
if (filter && !filter (b))
continue;
- /* If we have an "args" string, it is a list of breakpoints to
+ /* If we have a BP_NUM_LIST string, it is a list of breakpoints to
accept. Skip the others. */
- if (args != NULL && *args != '\0')
+ if (bp_num_list != NULL && *bp_num_list != '\0')
{
- if (allflag) /* maintenance info breakpoint */
+ if (show_internal) /* maintenance info breakpoint */
{
- if (parse_and_eval_long (args) != b->number)
+ if (parse_and_eval_long (bp_num_list) != b->number)
continue;
}
else /* all others */
{
- if (!number_is_in_list (args, b->number))
+ if (!number_is_in_list (bp_num_list, b->number))
continue;
}
}
/* We only print out user settable breakpoints unless the
- allflag is set. */
- if (allflag || user_breakpoint_p (b))
- print_one_breakpoint (b, &last_loc, allflag);
+ show_internal is set. */
+ if (show_internal || user_breakpoint_p (b))
+ print_one_breakpoint (b, &last_loc, show_internal);
}
}
empty list. */
if (!filter)
{
- if (args == NULL || *args == '\0')
+ if (bp_num_list == NULL || *bp_num_list == '\0')
uiout->message ("No breakpoints or watchpoints.\n");
else
uiout->message ("No breakpoint or watchpoint matching '%s'.\n",
- args);
+ bp_num_list);
}
}
else
static void
info_breakpoints_command (const char *args, int from_tty)
{
- breakpoint_1 (args, 0, NULL);
+ breakpoint_1 (args, false, NULL);
default_collect_info ();
}
static void
info_watchpoints_command (const char *args, int from_tty)
{
- int num_printed = breakpoint_1 (args, 0, is_watchpoint);
+ int num_printed = breakpoint_1 (args, false, is_watchpoint);
struct ui_out *uiout = current_uiout;
if (num_printed == 0)
static void
maintenance_info_breakpoints (const char *args, int from_tty)
{
- breakpoint_1 (args, 1, NULL);
+ breakpoint_1 (args, true, NULL);
default_collect_info ();
}
(others > 1) ? ","
: ((others == 1) ? " and" : ""));
}
- printf_filtered (_("also set at pc "));
- fputs_styled (paddress (gdbarch, pc), address_style.style (), gdb_stdout);
- printf_filtered (".\n");
+ current_uiout->message (_("also set at pc %ps.\n"),
+ styled_string (address_style.style (),
+ paddress (gdbarch, pc)));
}
}
\f
-/* Return true iff it is meaningful to use the address member of
- BPT locations. For some breakpoint types, the locations' address members
- are irrelevant and it makes no sense to attempt to compare them to other
- addresses (or use them for any other purpose either).
-
- More specifically, each of the following breakpoint types will
- always have a zero valued location address and we don't want to mark
- breakpoints of any of these types to be a duplicate of an actual
- breakpoint location at address zero:
-
- bp_watchpoint
- bp_catchpoint
+/* Return true iff it is meaningful to use the address member of LOC.
+ For some breakpoint types, the locations' address members are
+ irrelevant and it makes no sense to attempt to compare them to
+ other addresses (or use them for any other purpose either).
-*/
+ More specifically, software watchpoints and catchpoints that are
+ not backed by breakpoints always have a zero valued location
+ address and we don't want to mark breakpoints of any of these types
+ to be a duplicate of an actual breakpoint location at address
+ zero. */
-static int
-breakpoint_address_is_meaningful (struct breakpoint *bpt)
+static bool
+bl_address_is_meaningful (bp_location *loc)
{
- enum bptype type = bpt->type;
-
- return (type != bp_watchpoint && type != bp_catchpoint);
+ return loc->loc_type != bp_loc_other;
}
/* Assuming LOC1 and LOC2's owners are hardware watchpoints, returns
}
/* Assuming LOC1 and LOC2's types' have meaningful target addresses
- (breakpoint_address_is_meaningful), returns true if LOC1 and LOC2
- represent the same location. */
+ (bl_address_is_meaningful), returns true if LOC1 and LOC2 represent
+ the same location. */
static int
breakpoint_locations_match (struct bp_location *loc1,
}
}
-bp_location::bp_location (breakpoint *owner)
+static bp_loc_type
+bp_location_from_bp_type (bptype type)
{
- bp_location *loc = this;
-
- loc->owner = owner;
- loc->cond_bytecode = NULL;
- loc->shlib_disabled = 0;
- loc->enabled = 1;
-
- switch (owner->type)
+ switch (type)
{
case bp_breakpoint:
case bp_single_step:
case bp_gnu_ifunc_resolver:
case bp_gnu_ifunc_resolver_return:
case bp_dprintf:
- loc->loc_type = bp_loc_software_breakpoint;
- mark_breakpoint_location_modified (loc);
- break;
+ return bp_loc_software_breakpoint;
case bp_hardware_breakpoint:
- loc->loc_type = bp_loc_hardware_breakpoint;
- mark_breakpoint_location_modified (loc);
- break;
+ return bp_loc_hardware_breakpoint;
case bp_hardware_watchpoint:
case bp_read_watchpoint:
case bp_access_watchpoint:
- loc->loc_type = bp_loc_hardware_watchpoint;
- break;
+ return bp_loc_hardware_watchpoint;
case bp_watchpoint:
case bp_catchpoint:
case bp_tracepoint:
case bp_fast_tracepoint:
case bp_static_tracepoint:
- loc->loc_type = bp_loc_other;
- break;
+ return bp_loc_other;
default:
internal_error (__FILE__, __LINE__, _("unknown breakpoint type"));
}
+}
+
+bp_location::bp_location (breakpoint *owner, bp_loc_type type)
+{
+ this->owner = owner;
+ this->cond_bytecode = NULL;
+ this->shlib_disabled = 0;
+ this->enabled = 1;
+
+ this->loc_type = type;
- loc->refc = 1;
+ if (this->loc_type == bp_loc_software_breakpoint
+ || this->loc_type == bp_loc_hardware_breakpoint)
+ mark_breakpoint_location_modified (this);
+
+ this->refc = 1;
+}
+
+bp_location::bp_location (breakpoint *owner)
+ : bp_location::bp_location (owner,
+ bp_location_from_bp_type (owner->type))
+{
}
/* Allocate a struct bp_location. */
return add_to_breakpoint_chain (std::move (b));
}
-/* Initialize loc->function_name. EXPLICIT_LOC says no indirect function
- resolutions should be made as the user specified the location explicitly
- enough. */
+/* Initialize loc->function_name. */
static void
-set_breakpoint_location_function (struct bp_location *loc, int explicit_loc)
+set_breakpoint_location_function (struct bp_location *loc)
{
gdb_assert (loc->owner != NULL);
if (loc->msymbol != NULL
&& (MSYMBOL_TYPE (loc->msymbol) == mst_text_gnu_ifunc
- || MSYMBOL_TYPE (loc->msymbol) == mst_data_gnu_ifunc)
- && !explicit_loc)
+ || MSYMBOL_TYPE (loc->msymbol) == mst_data_gnu_ifunc))
{
struct breakpoint *b = loc->owner;
- function_name = MSYMBOL_LINKAGE_NAME (loc->msymbol);
+ function_name = loc->msymbol->linkage_name ();
if (b->type == bp_breakpoint && b->loc == loc
&& loc->next == NULL && b->related_breakpoint == b)
uiout->field_string ("reason", async_reason_lookup (EXEC_ASYNC_FORK));
uiout->field_string ("disp", bpdisp_text (b->disposition));
}
- uiout->field_int ("bkptno", b->number);
+ uiout->field_signed ("bkptno", b->number);
uiout->text (" (forked process ");
- uiout->field_int ("newpid", c->forked_inferior_pid.pid ());
+ uiout->field_signed ("newpid", c->forked_inferior_pid.pid ());
uiout->text ("), ");
return PRINT_SRC_AND_LOC;
}
if (c->forked_inferior_pid != null_ptid)
{
uiout->text (", process ");
- uiout->field_int ("what", c->forked_inferior_pid.pid ());
+ uiout->field_signed ("what", c->forked_inferior_pid.pid ());
uiout->spaces (1);
}
uiout->field_string ("reason", async_reason_lookup (EXEC_ASYNC_VFORK));
uiout->field_string ("disp", bpdisp_text (b->disposition));
}
- uiout->field_int ("bkptno", b->number);
+ uiout->field_signed ("bkptno", b->number);
uiout->text (" (vforked process ");
- uiout->field_int ("newpid", c->forked_inferior_pid.pid ());
+ uiout->field_signed ("newpid", c->forked_inferior_pid.pid ());
uiout->text ("), ");
return PRINT_SRC_AND_LOC;
}
if (c->forked_inferior_pid != null_ptid)
{
uiout->text (", process ");
- uiout->field_int ("what", c->forked_inferior_pid.pid ());
+ uiout->field_signed ("what", c->forked_inferior_pid.pid ());
uiout->spaces (1);
}
uiout->text ("Temporary catchpoint ");
else
uiout->text ("Catchpoint ");
- uiout->field_int ("bkptno", b->number);
+ uiout->field_signed ("bkptno", b->number);
uiout->text ("\n");
if (uiout->is_mi_like_p ())
uiout->field_string ("disp", bpdisp_text (b->disposition));
uiout->field_string ("reason", async_reason_lookup (EXEC_ASYNC_EXEC));
uiout->field_string ("disp", bpdisp_text (b->disposition));
}
- uiout->field_int ("bkptno", b->number);
+ uiout->field_signed ("bkptno", b->number);
uiout->text (" (exec'd ");
uiout->field_string ("new-exec", c->exec_pathname);
uiout->text ("), ");
copy = set_raw_breakpoint_without_location (orig->gdbarch, type, ops);
copy->loc = allocate_bp_location (copy);
- set_breakpoint_location_function (copy->loc, 1);
+ set_breakpoint_location_function (copy->loc);
copy->loc->gdbarch = orig->loc->gdbarch;
copy->loc->requested_address = orig->loc->requested_address;
loc->msymbol = sal->msymbol;
loc->objfile = sal->objfile;
- set_breakpoint_location_function (loc,
- sal->explicit_pc || sal->explicit_line);
+ set_breakpoint_location_function (loc);
/* While by definition, permanent breakpoints are already present in the
code, we don't mark the location as inserted. Normally one would expect
{
gdb_assert (loc != NULL);
- /* If we have a catchpoint or a watchpoint, just return 0. We should not
- attempt to read from the addresses the locations of these breakpoint types
- point to. program_breakpoint_here_p, below, will attempt to read
+ /* If we have a non-breakpoint-backed catchpoint or a software
+ watchpoint, just return 0. We should not attempt to read from
+ the addresses the locations of these breakpoint types point to.
+ program_breakpoint_here_p, below, will attempt to read
memory. */
- if (!breakpoint_address_is_meaningful (loc->owner))
+ if (!bl_address_is_meaningful (loc))
return 0;
scoped_restore_current_pspace_and_thread restore_pspace_thread;
b->location = std::move (location);
else
b->location = new_address_location (b->loc->address, NULL, 0);
- b->filter = filter.release ();
+ b->filter = std::move (filter);
}
static void
return sals;
}
+/* Returns the breakpoint ops appropriate for use with with LOCATION_TYPE and
+ according to IS_TRACEPOINT. */
+
+static const struct breakpoint_ops *
+breakpoint_ops_for_event_location_type (enum event_location_type location_type,
+ bool is_tracepoint)
+{
+ if (is_tracepoint)
+ {
+ if (location_type == PROBE_LOCATION)
+ return &tracepoint_probe_breakpoint_ops;
+ else
+ return &tracepoint_breakpoint_ops;
+ }
+ else
+ {
+ if (location_type == PROBE_LOCATION)
+ return &bkpt_probe_breakpoint_ops;
+ else
+ return &bkpt_breakpoint_ops;
+ }
+}
+
+/* See breakpoint.h. */
+
+const struct breakpoint_ops *
+breakpoint_ops_for_event_location (const struct event_location *location,
+ bool is_tracepoint)
+{
+ if (location != nullptr)
+ return breakpoint_ops_for_event_location_type
+ (event_location_type (location), is_tracepoint);
+ return is_tracepoint ? &tracepoint_breakpoint_ops : &bkpt_breakpoint_ops;
+}
+
/* See breakpoint.h. */
int
enum bptype type_wanted = (flag & BP_HARDWAREFLAG
? bp_hardware_breakpoint
: bp_breakpoint);
- struct breakpoint_ops *ops;
event_location_up location = string_to_event_location (&arg, current_language);
-
- /* Matching breakpoints on probes. */
- if (location != NULL
- && event_location_type (location.get ()) == PROBE_LOCATION)
- ops = &bkpt_probe_breakpoint_ops;
- else
- ops = &bkpt_breakpoint_ops;
+ const struct breakpoint_ops *ops = breakpoint_ops_for_event_location
+ (location.get (), false /* is_tracepoint */);
create_breakpoint (get_current_arch (),
location.get (),
{
int badInput = 0;
- if (arg == (char *) NULL)
+ if (arg == NULL)
badInput = 1;
else if (*arg != '*')
{
{
int badInput = 0;
- if (arg == (char *) NULL || *arg == '*') /* no line number */
+ if (arg == NULL || *arg == '*') /* no line number */
badInput = 1;
else
{
async_reason_lookup (EXEC_ASYNC_BREAKPOINT_HIT));
uiout->field_string ("disp", bpdisp_text (b->disposition));
}
- uiout->field_int ("bkptno", b->number);
+ uiout->field_signed ("bkptno", b->number);
uiout->text (", ");
return PRINT_SRC_AND_LOC;
}
ui_out_emit_tuple tuple_emitter (uiout, tuple_name);
- uiout->field_int ("number", b->number);
+ uiout->field_signed ("number", b->number);
uiout->text (": ");
uiout->field_string ("exp", w->exp_string);
}
}
ui_out_emit_tuple tuple_emitter (uiout, tuple_name);
- uiout->field_int ("number", b->number);
+ uiout->field_signed ("number", b->number);
uiout->text (": ");
uiout->field_string ("exp", w->exp_string);
}
/* Tell whether the given watchpoint is a masked hardware watchpoint. */
-static int
+static bool
is_masked_watchpoint (const struct breakpoint *b)
{
return b->ops == &masked_watchpoint_breakpoint_ops;
w->val = val;
w->val_bitpos = saved_bitpos;
w->val_bitsize = saved_bitsize;
- w->val_valid = 1;
+ w->val_valid = true;
}
if (cond_start)
if (arg
&& (check_for_argument (&arg, "-location", sizeof ("-location") - 1)
|| check_for_argument (&arg, "-l", sizeof ("-l") - 1)))
- {
- arg = skip_spaces (arg);
- just_location = 1;
- }
+ just_location = 1;
watch_command_1 (arg, accessflag, from_tty, just_location, 0);
}
get_last_displayed_symtab (),
get_last_displayed_line ())
: decode_line_1 (location.get (), DECODE_LINE_FUNFIRSTLINE,
- NULL, (struct symtab *) NULL, 0));
+ NULL, NULL, 0));
if (sals.size () != 1)
error (_("Couldn't get information on specified line."));
enough for now, though. */
}
- init_raw_breakpoint (b, gdbarch, sal, bp_breakpoint, ops);
+ init_raw_breakpoint (b, gdbarch, sal, bp_catchpoint, ops);
b->enable_state = enabled ? bp_enabled : bp_disabled;
b->disposition = tempflag ? disp_del : disp_donttouch;
}
/* A comparison function for bp_location AP and BP being interfaced to
- qsort. Sort elements primarily by their ADDRESS (no matter what
- does breakpoint_address_is_meaningful say for its OWNER),
- secondarily by ordering first permanent elements and
- terciarily just ensuring the array is sorted stable way despite
- qsort being an unstable algorithm. */
+ std::sort. Sort elements primarily by their ADDRESS (no matter what
+ bl_address_is_meaningful says), secondarily by ordering first
+ permanent elements and terciarily just ensuring the array is sorted
+ stable way despite std::sort being an unstable algorithm. */
static int
-bp_locations_compare (const void *ap, const void *bp)
+bp_location_is_less_than (const bp_location *a, const bp_location *b)
{
- const struct bp_location *a = *(const struct bp_location **) ap;
- const struct bp_location *b = *(const struct bp_location **) bp;
-
if (a->address != b->address)
- return (a->address > b->address) - (a->address < b->address);
+ return a->address < b->address;
/* Sort locations at the same address by their pspace number, keeping
locations of the same inferior (in a multi-inferior environment)
grouped. */
if (a->pspace->num != b->pspace->num)
- return ((a->pspace->num > b->pspace->num)
- - (a->pspace->num < b->pspace->num));
+ return a->pspace->num < b->pspace->num;
/* Sort permanent breakpoints first. */
if (a->permanent != b->permanent)
- return (a->permanent < b->permanent) - (a->permanent > b->permanent);
+ return a->permanent > b->permanent;
/* Make the internal GDB representation stable across GDB runs
where A and B memory inside GDB can differ. Breakpoint locations of
the same type at the same address can be sorted in arbitrary order. */
if (a->owner->number != b->owner->number)
- return ((a->owner->number > b->owner->number)
- - (a->owner->number < b->owner->number));
+ return a->owner->number < b->owner->number;
- return (a > b) - (a < b);
+ return a < b;
}
/* Set bp_locations_placed_address_before_address_max and
ALL_BREAKPOINTS (b)
for (loc = b->loc; loc; loc = loc->next)
*locp++ = loc;
- qsort (bp_locations, bp_locations_count, sizeof (*bp_locations),
- bp_locations_compare);
+ std::sort (bp_locations, bp_locations + bp_locations_count,
+ bp_location_is_less_than);
bp_locations_target_extensions_update ();
this one from the target. */
/* OLD_LOC comes from existing struct breakpoint. */
- if (breakpoint_address_is_meaningful (old_loc->owner))
+ if (bl_address_is_meaningful (old_loc))
{
for (loc2p = locp;
(loc2p < bp_locations + bp_locations_count
around. We simply always ignore hardware watchpoint
traps we can no longer explain. */
- old_loc->events_till_retirement = 3 * (thread_count () + 1);
+ process_stratum_target *proc_target = nullptr;
+ for (inferior *inf : all_inferiors ())
+ if (inf->pspace == old_loc->pspace)
+ {
+ proc_target = inf->process_target ();
+ break;
+ }
+ if (proc_target != nullptr)
+ old_loc->events_till_retirement
+ = 3 * (thread_count (proc_target) + 1);
+ else
+ old_loc->events_till_retirement = 1;
old_loc->owner = NULL;
moribund_locations.push_back (old_loc);
b = loc->owner;
if (!unduplicated_should_be_inserted (loc)
- || !breakpoint_address_is_meaningful (b)
+ || !bl_address_is_meaningful (loc)
/* Don't detect duplicate for tracepoint locations because they are
never duplicated. See the comments in field `duplicate' of
`struct bp_location'. */
else
{
if (opts.addressprint || b->loc->symtab == NULL)
- {
- printf_filtered (" at ");
- fputs_styled (paddress (b->loc->gdbarch, b->loc->address),
- address_style.style (),
- gdb_stdout);
- }
+ printf_filtered (" at %ps",
+ styled_string (address_style.style (),
+ paddress (b->loc->gdbarch,
+ b->loc->address)));
if (b->loc->symtab != NULL)
{
/* If there is a single location, we can print the location
more nicely. */
if (b->loc->next == NULL)
{
- puts_filtered (": file ");
- fputs_styled (symtab_to_filename_for_display (b->loc->symtab),
- file_name_style.style (),
- gdb_stdout);
- printf_filtered (", line %d.",
+ const char *filename
+ = symtab_to_filename_for_display (b->loc->symtab);
+ printf_filtered (": file %ps, line %d.",
+ styled_string (file_name_style.style (),
+ filename),
b->loc->line_number);
}
else
{
xfree (this->cond_string);
xfree (this->extra_string);
- xfree (this->filter);
}
static struct bp_location *
annotate_breakpoint (b->number);
maybe_print_thread_hit_breakpoint (uiout);
- if (bp_temp)
- uiout->text ("Temporary breakpoint ");
- else
- uiout->text ("Breakpoint ");
if (uiout->is_mi_like_p ())
{
uiout->field_string ("reason",
async_reason_lookup (EXEC_ASYNC_BREAKPOINT_HIT));
uiout->field_string ("disp", bpdisp_text (b->disposition));
}
- uiout->field_int ("bkptno", b->number);
- uiout->text (", ");
+ if (bp_temp)
+ uiout->message ("Temporary breakpoint %pF, ",
+ signed_field ("bkptno", b->number));
+ else
+ uiout->message ("Breakpoint %pF, ",
+ signed_field ("bkptno", b->number));
return PRINT_SRC_AND_LOC;
}
{
gdb_assert (self->type == bp_static_tracepoint);
- uiout->text ("\tmarker id is ");
- uiout->field_string ("static-tracepoint-marker-string-id",
- tp->static_trace_marker_id);
- uiout->text ("\n");
+ uiout->message ("\tmarker id is %pF\n",
+ string_field ("static-tracepoint-marker-string-id",
+ tp->static_trace_marker_id.c_str ()));
}
}
struct breakpoint_ops tracepoint_breakpoint_ops;
-/* The breakpoint_ops structure to be use on tracepoints placed in a
- static probe. */
+/* Virtual table for tracepoints on static probes. */
static void
tracepoint_probe_create_sals_from_location
return bkpt_probe_decode_location (b, location, search_pspace);
}
-static struct breakpoint_ops tracepoint_probe_breakpoint_ops;
-
/* Dprintf breakpoint_ops methods. */
static void
uiout->text ("Now in ");
if (sym)
{
- uiout->field_string ("func", SYMBOL_PRINT_NAME (sym),
- ui_out_style_kind::FUNCTION);
+ uiout->field_string ("func", sym->print_name (),
+ function_name_style.style ());
uiout->text (" at ");
}
uiout->field_string ("file",
symtab_to_filename_for_display (sal2.symtab),
- ui_out_style_kind::FILE);
+ file_name_style.style ());
uiout->text (":");
if (uiout->is_mi_like_p ())
uiout->field_string ("fullname", fullname);
}
- uiout->field_int ("line", sal2.line);
+ uiout->field_signed ("line", sal2.line);
uiout->text ("\n");
b->loc->line_number = sal2.line;
struct linespec_result canonical;
decode_line_full (location, DECODE_LINE_FUNFIRSTLINE, search_pspace,
- (struct symtab *) NULL, 0,
- &canonical, multiple_symbols_all,
- b->filter);
+ NULL, 0, &canonical, multiple_symbols_all,
+ b->filter.get ());
/* We should get 0 or 1 resulting SALs. */
gdb_assert (canonical.lsals.size () < 2);
&& addr + len > loc->address)
{
wp->val = NULL;
- wp->val_valid = 0;
+ wp->val_valid = false;
}
}
}
static void
trace_command (const char *arg, int from_tty)
{
- struct breakpoint_ops *ops;
-
event_location_up location = string_to_event_location (&arg,
current_language);
- if (location != NULL
- && event_location_type (location.get ()) == PROBE_LOCATION)
- ops = &tracepoint_probe_breakpoint_ops;
- else
- ops = &tracepoint_breakpoint_ops;
+ const struct breakpoint_ops *ops = breakpoint_ops_for_event_location
+ (location.get (), true /* is_tracepoint */);
create_breakpoint (get_current_arch (),
location.get (),
struct ui_out *uiout = current_uiout;
int num_printed;
- num_printed = breakpoint_1 (args, 0, is_tracepoint);
+ num_printed = breakpoint_1 (args, false, is_tracepoint);
if (num_printed == 0)
{
/* Save information on user settable breakpoints (watchpoints, etc) to
a new script file named FILENAME. If FILTER is non-NULL, call it
on each breakpoint and only include the ones for which it returns
- non-zero. */
+ true. */
static void
save_breakpoints (const char *filename, int from_tty,
- int (*filter) (const struct breakpoint *))
+ bool (*filter) (const struct breakpoint *))
{
struct breakpoint *tp;
int any = 0;
classes. For Ada, this means in all packages. E.g., in C++,\n\
\"func()\" matches \"A::func()\", \"A::B::func()\", etc. The\n\
\"-qualified\" flag overrides this behavior, making GDB interpret the\n\
-specified name as a complete fully-qualified name instead.\n"
+specified name as a complete fully-qualified name instead."
/* This help string is used for the break, hbreak, tbreak and thbreak
commands. It is defined as a macro to prevent duplication.
\n\
THREADNUM is the number from \"info threads\".\n\
CONDITION is a boolean expression.\n\
-\n" LOCATION_HELP_STRING "\n\
+\n" LOCATION_HELP_STRING "\n\n\
Multiple breakpoints at one place are permitted, and useful if their\n\
conditions are different.\n\
\n\
}
struct breakpoint *
-iterate_over_breakpoints (int (*callback) (struct breakpoint *, void *),
- void *data)
+iterate_over_breakpoints (gdb::function_view<bool (breakpoint *)> callback)
{
struct breakpoint *b, *b_tmp;
ALL_BREAKPOINTS_SAFE (b, b_tmp)
{
- if ((*callback) (b, data))
+ if (callback (b))
return b;
}
set_cmd_completer (c, location_completer);
add_prefix_cmd ("enable", class_breakpoint, enable_command, _("\
-Enable some breakpoints.\n\
+Enable all or some breakpoints.\n\
+Usage: enable [BREAKPOINTNUM]...\n\
Give breakpoint numbers (separated by spaces) as arguments.\n\
With no subcommand, breakpoints are enabled until you command otherwise.\n\
This is used to cancel the effect of the \"disable\" command.\n\
add_com_alias ("en", "enable", class_breakpoint, 1);
add_prefix_cmd ("breakpoints", class_breakpoint, enable_command, _("\
-Enable some breakpoints.\n\
+Enable all or some breakpoints.\n\
+Usage: enable breakpoints [BREAKPOINTNUM]...\n\
Give breakpoint numbers (separated by spaces) as arguments.\n\
This is used to cancel the effect of the \"disable\" command.\n\
-May be abbreviated to simply \"enable\".\n"),
+May be abbreviated to simply \"enable\"."),
&enablebreaklist, "enable breakpoints ", 1, &enablelist);
add_cmd ("once", no_class, enable_once_command, _("\
-Enable breakpoints for one hit. Give breakpoint numbers.\n\
+Enable some breakpoints for one hit.\n\
+Usage: enable breakpoints once BREAKPOINTNUM...\n\
If a breakpoint is hit while enabled in this fashion, it becomes disabled."),
&enablebreaklist);
add_cmd ("delete", no_class, enable_delete_command, _("\
-Enable breakpoints and delete when hit. Give breakpoint numbers.\n\
+Enable some breakpoints and delete when hit.\n\
+Usage: enable breakpoints delete BREAKPOINTNUM...\n\
If a breakpoint is hit while enabled in this fashion, it is deleted."),
&enablebreaklist);
add_cmd ("count", no_class, enable_count_command, _("\
-Enable breakpoints for COUNT hits. Give count and then breakpoint numbers.\n\
+Enable some breakpoints for COUNT hits.\n\
+Usage: enable breakpoints count COUNT BREAKPOINTNUM...\n\
If a breakpoint is hit while enabled in this fashion,\n\
the count is decremented; when it reaches zero, the breakpoint is disabled."),
&enablebreaklist);
add_cmd ("delete", no_class, enable_delete_command, _("\
-Enable breakpoints and delete when hit. Give breakpoint numbers.\n\
+Enable some breakpoints and delete when hit.\n\
+Usage: enable delete BREAKPOINTNUM...\n\
If a breakpoint is hit while enabled in this fashion, it is deleted."),
&enablelist);
add_cmd ("once", no_class, enable_once_command, _("\
-Enable breakpoints for one hit. Give breakpoint numbers.\n\
+Enable some breakpoints for one hit.\n\
+Usage: enable once BREAKPOINTNUM...\n\
If a breakpoint is hit while enabled in this fashion, it becomes disabled."),
&enablelist);
add_cmd ("count", no_class, enable_count_command, _("\
-Enable breakpoints for COUNT hits. Give count and then breakpoint numbers.\n\
+Enable some breakpoints for COUNT hits.\n\
+Usage: enable count COUNT BREAKPOINTNUM...\n\
If a breakpoint is hit while enabled in this fashion,\n\
the count is decremented; when it reaches zero, the breakpoint is disabled."),
&enablelist);
add_prefix_cmd ("disable", class_breakpoint, disable_command, _("\
-Disable some breakpoints.\n\
+Disable all or some breakpoints.\n\
+Usage: disable [BREAKPOINTNUM]...\n\
Arguments are breakpoint numbers with spaces in between.\n\
To disable all breakpoints, give no argument.\n\
A disabled breakpoint is not forgotten, but has no effect until re-enabled."),
add_com_alias ("disa", "disable", class_breakpoint, 1);
add_cmd ("breakpoints", class_alias, disable_command, _("\
-Disable some breakpoints.\n\
+Disable all or some breakpoints.\n\
+Usage: disable breakpoints [BREAKPOINTNUM]...\n\
Arguments are breakpoint numbers with spaces in between.\n\
To disable all breakpoints, give no argument.\n\
A disabled breakpoint is not forgotten, but has no effect until re-enabled.\n\
&disablelist);
add_prefix_cmd ("delete", class_breakpoint, delete_command, _("\
-Delete some breakpoints or auto-display expressions.\n\
+Delete all or some breakpoints.\n\
+Usage: delete [BREAKPOINTNUM]...\n\
Arguments are breakpoint numbers with spaces in between.\n\
To delete all breakpoints, give no argument.\n\
\n\
-Also a prefix command for deletion of other GDB objects.\n\
-The \"unset\" command is also an alias for \"delete\"."),
+Also a prefix command for deletion of other GDB objects."),
&deletelist, "delete ", 1, &cmdlist);
add_com_alias ("d", "delete", class_breakpoint, 1);
add_com_alias ("del", "delete", class_breakpoint, 1);
add_cmd ("breakpoints", class_alias, delete_command, _("\
-Delete some breakpoints or auto-display expressions.\n\
+Delete all or some breakpoints or auto-display expressions.\n\
+Usage: delete breakpoints [BREAKPOINTNUM]...\n\
Arguments are breakpoint numbers with spaces in between.\n\
To delete all breakpoints, give no argument.\n\
This command may be abbreviated \"delete\"."),
\n\
With no argument, clears all breakpoints in the line that the selected frame\n\
is executing in.\n"
-"\n" LOCATION_HELP_STRING "\n\
+"\n" LOCATION_HELP_STRING "\n\n\
See also the \"delete\" command which clears breakpoints by number."));
add_com_alias ("cl", "clear", class_breakpoint, 1);
by printing the $_sdata variable like any other convenience variable.\n\
\n\
CONDITION is a boolean expression.\n\
-\n" LOCATION_HELP_STRING "\n\
+\n" LOCATION_HELP_STRING "\n\n\
Multiple tracepoints at one place are permitted, and useful if their\n\
conditions are different.\n\
\n\
deprecate_cmd (c, "save tracepoints");
add_prefix_cmd ("breakpoint", class_maintenance, set_breakpoint_cmd, _("\
-Breakpoint specific settings\n\
+Breakpoint specific settings.\n\
Configure various breakpoint-specific variables such as\n\
-pending breakpoint behavior"),
+pending breakpoint behavior."),
&breakpoint_set_cmdlist, "set breakpoint ",
0/*allow-unknown*/, &setlist);
add_prefix_cmd ("breakpoint", class_maintenance, show_breakpoint_cmd, _("\
-Breakpoint specific settings\n\
+Breakpoint specific settings.\n\
Configure various breakpoint-specific variables such as\n\
-pending breakpoint behavior"),
+pending breakpoint behavior."),
&breakpoint_show_cmdlist, "show breakpoint ",
0/*allow-unknown*/, &showlist);
dprintf_function = xstrdup ("printf");
add_setshow_string_cmd ("dprintf-function", class_support,
&dprintf_function, _("\
-Set the function to use for dynamic printf"), _("\
-Show the function to use for dynamic printf"), NULL,
+Set the function to use for dynamic printf."), _("\
+Show the function to use for dynamic printf."), NULL,
update_dprintf_commands, NULL,
&setlist, &showlist);
dprintf_channel = xstrdup ("");
add_setshow_string_cmd ("dprintf-channel", class_support,
&dprintf_channel, _("\
-Set the channel to use for dynamic printf"), _("\
-Show the channel to use for dynamic printf"), NULL,
+Set the channel to use for dynamic printf."), _("\
+Show the channel to use for dynamic printf."), NULL,
update_dprintf_commands, NULL,
&setlist, &showlist);
&setlist, &showlist);
add_com ("agent-printf", class_vars, agent_printf_command, _("\
-agent-printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\
-(target agent only) This is useful for formatted output in user-defined commands."));
+Target agent only formatted printing, like the C \"printf\" function.\n\
+Usage: agent-printf \"format string\", ARG1, ARG2, ARG3, ..., ARGN\n\
+This supports most C printf format specifications, like %s, %d, etc.\n\
+This is useful for formatted output in user-defined commands."));
- automatic_hardware_breakpoints = 1;
+ automatic_hardware_breakpoints = true;
gdb::observers::about_to_proceed.attach (breakpoint_about_to_proceed);
gdb::observers::thread_exit.attach (remove_threaded_breakpoints);
projects / deliverable / binutils-gdb.git / blobdiff