Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
- 2008, 2009, 2010 Free Software Foundation, Inc.
+ 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
This file is part of GDB.
static void catch_command (char *, int);
-static int can_use_hardware_watchpoint (struct value *);
+static int can_use_hardware_watchpoint (struct value *, int);
static void break_command_1 (char *, int, int);
struct cmd_list_element *c,
const char *value)
{
- fprintf_filtered (file, _("\
-Debugger's willingness to use watchpoint hardware is %s.\n"),
+ fprintf_filtered (file,
+ _("Debugger's willingness to use "
+ "watchpoint hardware is %s.\n"),
value);
}
struct cmd_list_element *c,
const char *value)
{
- fprintf_filtered (file, _("\
-Debugger's behavior regarding pending breakpoints is %s.\n"),
+ fprintf_filtered (file,
+ _("Debugger's behavior regarding "
+ "pending breakpoints is %s.\n"),
value);
}
struct cmd_list_element *c,
const char *value)
{
- fprintf_filtered (file, _("\
-Automatic usage of hardware breakpoints is %s.\n"),
+ fprintf_filtered (file,
+ _("Automatic usage of hardware breakpoints is %s.\n"),
value);
}
struct cmd_list_element *c, const char *value)
{
if (always_inserted_mode == always_inserted_auto)
- fprintf_filtered (file, _("\
-Always inserted breakpoint mode is %s (currently %s).\n"),
+ fprintf_filtered (file,
+ _("Always inserted breakpoint "
+ "mode is %s (currently %s).\n"),
value,
breakpoints_always_inserted_mode () ? "on" : "off");
else
- fprintf_filtered (file, _("Always inserted breakpoint mode is %s.\n"), value);
+ fprintf_filtered (file, _("Always inserted breakpoint mode is %s.\n"),
+ value);
}
int
/* Are overlay event breakpoints enabled? */
static int overlay_events_enabled;
+/* See description in breakpoint.h. */
+int target_exact_watchpoints = 0;
+
/* Walk the following statement or block through all breakpoints.
ALL_BREAKPOINTS_SAFE does so even if the statment deletes the
current breakpoint. */
retval = (int) val;
else
{
- printf_filtered (_("Convenience variable must have integer value.\n"));
+ printf_filtered (_("Convenience variable must "
+ "have integer value.\n"));
retval = 0;
}
}
int i;
if (c->control_type == while_stepping_control)
- error (_("The 'while-stepping' command can only be used for tracepoints"));
+ error (_("The 'while-stepping' command can "
+ "only be used for tracepoints"));
for (i = 0; i < c->body_count; ++i)
check_no_tracepoint_commands ((c->body_list)[i]);
if (c->control_type == while_stepping_control)
{
if (b->type == bp_fast_tracepoint)
- error (_("\
-The 'while-stepping' command cannot be used for fast tracepoint"));
+ error (_("The 'while-stepping' command "
+ "cannot be used for fast tracepoint"));
else if (b->type == bp_static_tracepoint)
- error (_("\
-The 'while-stepping' command cannot be used for static tracepoint"));
+ error (_("The 'while-stepping' command "
+ "cannot be used for static tracepoint"));
if (while_stepping)
- error (_("The 'while-stepping' command can be used only once"));
+ error (_("The 'while-stepping' command "
+ "can be used only once"));
else
while_stepping = c;
}
observer_notify_breakpoint_modified (b->number);
}
+/* Set the internal `silent' flag on the breakpoint. Note that this
+ is not the same as the "silent" that may appear in the breakpoint's
+ commands. */
+
+void
+breakpoint_set_silent (struct breakpoint *b, int silent)
+{
+ int old_silent = b->silent;
+
+ b->silent = silent;
+ if (old_silent != silent)
+ observer_notify_breakpoint_modified (b->number);
+}
+
+/* Set the thread for this breakpoint. If THREAD is -1, make the
+ breakpoint work for any thread. */
+
+void
+breakpoint_set_thread (struct breakpoint *b, int thread)
+{
+ int old_thread = b->thread;
+
+ b->thread = thread;
+ if (old_thread != thread)
+ observer_notify_breakpoint_modified (b->number);
+}
+
+/* Set the task for this breakpoint. If TASK is 0, make the
+ breakpoint work for any task. */
+
+void
+breakpoint_set_task (struct breakpoint *b, int task)
+{
+ int old_task = b->task;
+
+ b->task = task;
+ if (old_task != task)
+ observer_notify_breakpoint_modified (b->number);
+}
+
void
check_tracepoint_command (char *line, void *closure)
{
struct cleanup *old_chain;
char *str;
- str = xstrprintf (_("Type commands for breakpoint(s) %s, one per line."),
+ str = xstrprintf (_("Type commands for breakpoint(s) "
+ "%s, one per line."),
info->arg);
old_chain = make_cleanup (xfree, str);
}
\f
-/* A wrapper function for inserting catchpoints. */
-static void
-insert_catchpoint (struct ui_out *uo, void *args)
-{
- struct breakpoint *b = (struct breakpoint *) args;
-
- gdb_assert (b->type == bp_catchpoint);
- gdb_assert (b->ops != NULL && b->ops->insert != NULL);
-
- b->ops->insert (b);
-}
-
/* Return true if BPT is of any hardware watchpoint kind. */
static int
b->val_valid = 1;
}
- /* Change the type of breakpoint between hardware assisted or
- an ordinary watchpoint depending on the hardware support
- and free hardware slots. REPARSE is set when the inferior
- is started. */
- if ((b->type == bp_watchpoint || b->type == bp_hardware_watchpoint)
- && reparse)
- {
- int i, mem_cnt, other_type_used;
-
- /* We need to determine how many resources are already
- used for all other hardware watchpoints to see if we
- still have enough resources to also fit this watchpoint
- in as well. To avoid the hw_watchpoint_used_count call
- below from counting this watchpoint, make sure that it
- is marked as a software watchpoint. */
- b->type = bp_watchpoint;
- i = hw_watchpoint_used_count (bp_hardware_watchpoint,
- &other_type_used);
- mem_cnt = can_use_hardware_watchpoint (val_chain);
-
- if (!mem_cnt)
- b->type = bp_watchpoint;
- else
- {
- int target_resources_ok = target_can_use_hardware_watchpoint
- (bp_hardware_watchpoint, i + mem_cnt, other_type_used);
- if (target_resources_ok <= 0)
- b->type = bp_watchpoint;
- else
- b->type = bp_hardware_watchpoint;
- }
- }
-
frame_pspace = get_frame_program_space (get_selected_frame (NULL));
/* Look at each value on the value chain. */
- for (v = val_chain; v; v = next)
+ for (v = val_chain; v; v = value_next (v))
{
/* If it's a memory location, and GDB actually needed
its contents to evaluate the expression, then we
loc->watchpoint_type = type;
}
}
+ }
+ /* Change the type of breakpoint between hardware assisted or
+ an ordinary watchpoint depending on the hardware support
+ and free hardware slots. REPARSE is set when the inferior
+ is started. */
+ if ((b->type == bp_watchpoint || b->type == bp_hardware_watchpoint)
+ && reparse)
+ {
+ int reg_cnt;
+ enum bp_loc_type loc_type;
+ struct bp_location *bl;
+
+ reg_cnt = can_use_hardware_watchpoint (val_chain, b->exact);
+
+ if (reg_cnt)
+ {
+ int i, target_resources_ok, other_type_used;
+ enum enable_state orig_enable_state;
+
+ /* We need to determine how many resources are already
+ used for all other hardware watchpoints plus this one
+ to see if we still have enough resources to also fit
+ this watchpoint in as well. To guarantee the
+ hw_watchpoint_used_count call below counts this
+ watchpoint, make sure that it is marked as a hardware
+ watchpoint. */
+ b->type = bp_hardware_watchpoint;
+
+ /* hw_watchpoint_used_count ignores disabled watchpoints,
+ and b might be disabled if we're being called from
+ do_enable_breakpoint. */
+ orig_enable_state = b->enable_state;
+ b->enable_state = bp_enabled;
+
+ i = hw_watchpoint_used_count (bp_hardware_watchpoint,
+ &other_type_used);
+
+ b->enable_state = orig_enable_state;
+
+ target_resources_ok = target_can_use_hardware_watchpoint
+ (bp_hardware_watchpoint, i, other_type_used);
+ if (target_resources_ok <= 0)
+ b->type = bp_watchpoint;
+ }
+ else
+ b->type = bp_watchpoint;
+
+ loc_type = (b->type == bp_watchpoint? bp_loc_other
+ : bp_loc_hardware_watchpoint);
+ for (bl = b->loc; bl; bl = bl->next)
+ bl->loc_type = loc_type;
+ }
+
+ for (v = val_chain; v; v = next)
+ {
next = value_next (v);
if (v != b->val)
value_free (v);
bl->loc_type = new_type;
if (!said)
{
- fprintf_filtered (gdb_stdout, _("\
-Note: automatically using hardware breakpoints for read-only addresses.\n"));
+ fprintf_filtered (gdb_stdout,
+ _("Note: automatically using "
+ "hardware breakpoints for "
+ "read-only addresses.\n"));
said = 1;
}
}
}
else if (bl->loc_type == bp_loc_software_breakpoint
&& mr->attrib.mode != MEM_RW)
- warning (_("cannot set software breakpoint at readonly address %s"),
+ warning (_("cannot set software breakpoint "
+ "at readonly address %s"),
paddress (bl->gdbarch, bl->address));
}
}
&bl->overlay_target_info);
if (val != 0)
fprintf_unfiltered (tmp_error_stream,
- "Overlay breakpoint %d failed: in ROM?\n",
+ "Overlay breakpoint %d "
+ "failed: in ROM?\n",
bl->owner->number);
}
}
"Cannot insert breakpoint %d.\n",
bl->owner->number);
fprintf_unfiltered (tmp_error_stream,
- "Temporarily disabling shared library breakpoints:\n");
+ "Temporarily disabling shared "
+ "library breakpoints:\n");
}
*disabled_breaks = 1;
fprintf_unfiltered (tmp_error_stream,
if (bl->loc_type == bp_loc_hardware_breakpoint)
{
*hw_breakpoint_error = 1;
- fprintf_unfiltered (tmp_error_stream,
- "Cannot insert hardware breakpoint %d.\n",
+ fprintf_unfiltered (tmp_error_stream,
+ "Cannot insert hardware "
+ "breakpoint %d.\n",
bl->owner->number);
}
else
watchpoints. It's not clear that it's necessary... */
&& bl->owner->disposition != disp_del_at_next_stop)
{
- val = target_insert_watchpoint (bl->address,
- bl->length,
- bl->watchpoint_type,
- bl->owner->cond_exp);
+ gdb_assert (bl->owner->ops != NULL
+ && bl->owner->ops->insert_location != NULL);
+
+ val = bl->owner->ops->insert_location (bl);
/* If trying to set a read-watchpoint, and it turns out it's not
supported, try emulating one with an access watchpoint. */
if (val == 1)
{
- val = target_insert_watchpoint (bl->address,
- bl->length,
- hw_access,
- bl->owner->cond_exp);
- if (val == 0)
- bl->watchpoint_type = hw_access;
+ bl->watchpoint_type = hw_access;
+ val = bl->owner->ops->insert_location (bl);
+
+ if (val)
+ /* Back to the original value. */
+ bl->watchpoint_type = hw_read;
}
}
else if (bl->owner->type == bp_catchpoint)
{
- struct gdb_exception e = catch_exception (uiout, insert_catchpoint,
- bl->owner, RETURN_MASK_ERROR);
- exception_fprintf (gdb_stderr, e, "warning: inserting catchpoint %d: ",
- bl->owner->number);
- if (e.reason < 0)
- bl->owner->enable_state = bp_disabled;
- else
- bl->inserted = 1;
+ gdb_assert (bl->owner->ops != NULL
+ && bl->owner->ops->insert_location != NULL);
+
+ val = bl->owner->ops->insert_location (bl);
+ if (val)
+ {
+ bl->owner->enable_state = bp_disabled;
+
+ if (val == 1)
+ warning (_("\
+Error inserting catchpoint %d: Your system does not support this type\n\
+of catchpoint."), bl->owner->number);
+ else
+ warning (_("Error inserting catchpoint %d."), bl->owner->number);
+ }
+
+ bl->inserted = (val == 0);
/* We've already printed an error message if there was a problem
inserting this catchpoint, and we've disabled the catchpoint,
}
else if (bl->loc_type == bp_loc_hardware_watchpoint)
{
+ gdb_assert (bl->owner->ops != NULL
+ && bl->owner->ops->remove_location != NULL);
+
bl->inserted = (is == mark_inserted);
- val = target_remove_watchpoint (bl->address, bl->length,
- bl->watchpoint_type,
- bl->owner->cond_exp);
+ bl->owner->ops->remove_location (bl);
/* Failure to remove any of the hardware watchpoints comes here. */
if ((is == mark_uninserted) && (bl->inserted))
&& breakpoint_enabled (bl->owner)
&& !bl->duplicate)
{
- gdb_assert (bl->owner->ops != NULL && bl->owner->ops->remove != NULL);
+ gdb_assert (bl->owner->ops != NULL
+ && bl->owner->ops->remove_location != NULL);
- val = bl->owner->ops->remove (bl->owner);
+ val = bl->owner->ops->remove_location (bl);
if (val)
return val;
+
bl->inserted = (is == mark_inserted);
}
inserted at PC. */
int
-software_breakpoint_inserted_here_p (struct address_space *aspace, CORE_ADDR pc)
+software_breakpoint_inserted_here_p (struct address_space *aspace,
+ CORE_ADDR pc)
{
struct bp_location *bl, **blp_tmp;
case bp_std_terminate_master:
/* These should never be enabled. */
- printf_filtered (_("std::terminate Master Breakpoint: gdb should not stop!\n"));
+ printf_filtered (_("std::terminate Master Breakpoint: "
+ "gdb should not stop!\n"));
result = PRINT_NOTHING;
break;
case bp_exception_master:
/* These should never be enabled. */
- printf_filtered (_("Exception Master Breakpoint: gdb should not stop!\n"));
+ printf_filtered (_("Exception Master Breakpoint: "
+ "gdb should not stop!\n"));
result = PRINT_NOTHING;
break;
(uiout, "reason", async_reason_lookup (EXEC_ASYNC_WATCHPOINT_SCOPE));
ui_out_text (uiout, "\nWatchpoint ");
ui_out_field_int (uiout, "wpnum", b->number);
- ui_out_text (uiout, " deleted because the program has left the block in\n\
+ ui_out_text (uiout,
+ " deleted because the program has left the block in\n\
which its expression is valid.\n");
if (b->related_breakpoint)
if (must_check_value)
{
- char *message = xstrprintf ("Error evaluating expression for watchpoint %d\n",
- b->number);
+ char *message
+ = xstrprintf ("Error evaluating expression for watchpoint %d\n",
+ b->number);
struct cleanup *cleanups = make_cleanup (xfree, message);
int e = catch_errors (watchpoint_check, bs, message,
RETURN_MASK_ALL);
|| is_watchpoint (b));
}
+/* Return true if this breakpoint was set by the user, false if it is
+ internal or momentary. */
+
+int
+user_breakpoint_p (struct breakpoint *b)
+{
+ return user_settable_breakpoint (b) && b->number > 0;
+}
+
/* 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
if (filter && !filter (b))
continue;
- if (allflag || (user_settable_breakpoint (b)
- && b->number > 0))
+ if (allflag || user_breakpoint_p (b))
{
int addr_bit, type_len;
if (opts.addressprint)
bkpttbl_chain
- = make_cleanup_ui_out_table_begin_end (uiout, 6, nr_printable_breakpoints,
+ = make_cleanup_ui_out_table_begin_end (uiout, 6,
+ nr_printable_breakpoints,
"BreakpointTable");
else
bkpttbl_chain
- = make_cleanup_ui_out_table_begin_end (uiout, 5, nr_printable_breakpoints,
+ = make_cleanup_ui_out_table_begin_end (uiout, 5,
+ nr_printable_breakpoints,
"BreakpointTable");
if (nr_printable_breakpoints > 0)
/* We only print out user settable breakpoints unless the
allflag is set. */
- if (allflag || (user_settable_breakpoint (b)
- && b->number > 0))
+ if (allflag || user_breakpoint_p (b))
print_one_breakpoint (b, &last_loc, print_address_bits, allflag);
}
}
return b;
}
+/* Remove JIT code registration and unregistration breakpoint(s). */
+
+void
+remove_jit_event_breakpoints (void)
+{
+ struct breakpoint *b, *b_tmp;
+
+ ALL_BREAKPOINTS_SAFE (b, b_tmp)
+ if (b->type == bp_jit_event
+ && b->loc->pspace == current_program_space)
+ delete_breakpoint (b);
+}
+
void
remove_solib_event_breakpoints (void)
{
if (!disabled_shlib_breaks)
{
target_terminal_ours_for_output ();
- warning (_("Temporarily disabling breakpoints for unloaded shared library \"%s\""),
+ warning (_("Temporarily disabling breakpoints "
+ "for unloaded shared library \"%s\""),
solib->so_name);
}
disabled_shlib_breaks = 1;
/* Implement the "insert" breakpoint_ops method for fork
catchpoints. */
-static void
-insert_catch_fork (struct breakpoint *b)
+static int
+insert_catch_fork (struct bp_location *bl)
{
- target_insert_fork_catchpoint (PIDGET (inferior_ptid));
+ return target_insert_fork_catchpoint (PIDGET (inferior_ptid));
}
/* Implement the "remove" breakpoint_ops method for fork
catchpoints. */
static int
-remove_catch_fork (struct breakpoint *b)
+remove_catch_fork (struct bp_location *bl)
{
return target_remove_fork_catchpoint (PIDGET (inferior_ptid));
}
insert_catch_fork,
remove_catch_fork,
breakpoint_hit_catch_fork,
+ NULL, /* resources_needed */
print_it_catch_fork,
print_one_catch_fork,
print_mention_catch_fork,
/* Implement the "insert" breakpoint_ops method for vfork
catchpoints. */
-static void
-insert_catch_vfork (struct breakpoint *b)
+static int
+insert_catch_vfork (struct bp_location *bl)
{
- target_insert_vfork_catchpoint (PIDGET (inferior_ptid));
+ return target_insert_vfork_catchpoint (PIDGET (inferior_ptid));
}
/* Implement the "remove" breakpoint_ops method for vfork
catchpoints. */
static int
-remove_catch_vfork (struct breakpoint *b)
+remove_catch_vfork (struct bp_location *bl)
{
return target_remove_vfork_catchpoint (PIDGET (inferior_ptid));
}
insert_catch_vfork,
remove_catch_vfork,
breakpoint_hit_catch_vfork,
+ NULL, /* resources_needed */
print_it_catch_vfork,
print_one_catch_vfork,
print_mention_catch_vfork,
/* Implement the "insert" breakpoint_ops method for syscall
catchpoints. */
-static void
-insert_catch_syscall (struct breakpoint *b)
+static int
+insert_catch_syscall (struct bp_location *bl)
{
struct inferior *inf = current_inferior ();
++inf->total_syscalls_count;
- if (!b->syscalls_to_be_caught)
+ if (!bl->owner->syscalls_to_be_caught)
++inf->any_syscall_count;
else
{
int i, iter;
for (i = 0;
- VEC_iterate (int, b->syscalls_to_be_caught, i, iter);
+ VEC_iterate (int, bl->owner->syscalls_to_be_caught, i, iter);
i++)
{
int elem;
if (iter >= VEC_length (int, inf->syscalls_counts))
{
int old_size = VEC_length (int, inf->syscalls_counts);
- uintptr_t vec_addr_offset = old_size * ((uintptr_t) sizeof (int));
+ uintptr_t vec_addr_offset
+ = old_size * ((uintptr_t) sizeof (int));
uintptr_t vec_addr;
VEC_safe_grow (int, inf->syscalls_counts, iter + 1);
vec_addr = (uintptr_t) VEC_address (int, inf->syscalls_counts) +
}
}
- target_set_syscall_catchpoint (PIDGET (inferior_ptid),
- inf->total_syscalls_count != 0,
- inf->any_syscall_count,
- VEC_length (int, inf->syscalls_counts),
- VEC_address (int, inf->syscalls_counts));
+ return target_set_syscall_catchpoint (PIDGET (inferior_ptid),
+ inf->total_syscalls_count != 0,
+ inf->any_syscall_count,
+ VEC_length (int, inf->syscalls_counts),
+ VEC_address (int, inf->syscalls_counts));
}
/* Implement the "remove" breakpoint_ops method for syscall
catchpoints. */
static int
-remove_catch_syscall (struct breakpoint *b)
+remove_catch_syscall (struct bp_location *bl)
{
struct inferior *inf = current_inferior ();
--inf->total_syscalls_count;
- if (!b->syscalls_to_be_caught)
+ if (!bl->owner->syscalls_to_be_caught)
--inf->any_syscall_count;
else
{
int i, iter;
for (i = 0;
- VEC_iterate (int, b->syscalls_to_be_caught, i, iter);
+ VEC_iterate (int, bl->owner->syscalls_to_be_caught, i, iter);
i++)
{
int elem;
inf->total_syscalls_count != 0,
inf->any_syscall_count,
VEC_length (int, inf->syscalls_counts),
- VEC_address (int, inf->syscalls_counts));
+ VEC_address (int,
+ inf->syscalls_counts));
}
/* Implement the "breakpoint_hit" breakpoint_ops method for syscall
insert_catch_syscall,
remove_catch_syscall,
breakpoint_hit_catch_syscall,
+ NULL, /* resources_needed */
print_it_catch_syscall,
print_one_catch_syscall,
print_mention_catch_syscall,
/* Exec catchpoints. */
-static void
-insert_catch_exec (struct breakpoint *b)
+static int
+insert_catch_exec (struct bp_location *bl)
{
- target_insert_exec_catchpoint (PIDGET (inferior_ptid));
+ return target_insert_exec_catchpoint (PIDGET (inferior_ptid));
}
static int
-remove_catch_exec (struct breakpoint *b)
+remove_catch_exec (struct bp_location *bl)
{
return target_remove_exec_catchpoint (PIDGET (inferior_ptid));
}
insert_catch_exec,
remove_catch_exec,
breakpoint_hit_catch_exec,
+ NULL, /* resources_needed */
print_it_catch_exec,
print_one_catch_exec,
print_mention_catch_exec,
static int
hw_watchpoint_used_count (enum bptype type, int *other_type_used)
{
- struct breakpoint *b;
int i = 0;
+ struct breakpoint *b;
+ struct bp_location *bl;
*other_type_used = 0;
ALL_BREAKPOINTS (b)
- {
- if (breakpoint_enabled (b))
- {
+ {
+ if (!breakpoint_enabled (b))
+ continue;
+
if (b->type == type)
- i++;
+ for (bl = b->loc; bl; bl = bl->next)
+ {
+ /* Special types of hardware watchpoints may use more than
+ one register. */
+ if (b->ops && b->ops->resources_needed)
+ i += b->ops->resources_needed (bl);
+ else
+ i++;
+ }
else if (is_hardware_watchpoint (b))
*other_type_used = 1;
- }
- }
+ }
+
return i;
}
switch (b->type)
{
case bp_none:
- printf_filtered (_("(apparently deleted?) Eventpoint %d: "), b->number);
+ printf_filtered (_("(apparently deleted?) Eventpoint %d: "),
+ b->number);
break;
case bp_watchpoint:
ui_out_text (uiout, "Watchpoint ");
marker_str = savestring (p, endp - p);
b->static_trace_marker_id = marker_str;
- printf_filtered (_("Probed static tracepoint marker \"%s\"\n"),
+ printf_filtered (_("Probed static tracepoint "
+ "marker \"%s\"\n"),
b->static_trace_marker_id);
}
else if (target_static_tracepoint_marker_at (sal.pc, &marker))
b->static_trace_marker_id = xstrdup (marker.str_id);
release_static_tracepoint_marker (&marker);
- printf_filtered (_("Probed static tracepoint marker \"%s\"\n"),
+ printf_filtered (_("Probed static tracepoint "
+ "marker \"%s\"\n"),
b->static_trace_marker_id);
}
else
- warning (_("\
-Couldn't determine the static tracepoint marker to probe"));
+ warning (_("Couldn't determine the static "
+ "tracepoint marker to probe"));
}
if (enabled && b->pspace->executing_startup
/* If pending breakpoint support is auto query and the user
selects no, then simply return the error code. */
if (pending_break_support == AUTO_BOOLEAN_AUTO
- && !nquery (_("Make breakpoint pending on future shared library load? ")))
+ && !nquery (_("Make breakpoint pending on "
+ "future shared library load? ")))
return 0;
/* At this point, either the user was queried about setting
}
else
create_breakpoints_sal (gdbarch, sals, addr_string, cond_string,
- type_wanted, tempflag ? disp_del : disp_donttouch,
+ type_wanted,
+ tempflag ? disp_del : disp_donttouch,
thread, task, ignore_count, ops, from_tty,
enabled, internal);
}
if (sals.nelts > 1)
{
- warning (_("Multiple breakpoints were set.\n"
- "Use the \"delete\" command to delete unwanted breakpoints."));
+ warning (_("Multiple breakpoints were set.\nUse the "
+ "\"delete\" command to delete unwanted breakpoints."));
prev_breakpoint_count = prev_bkpt_count;
}
return 1;
}
+/* Implement the "insert" breakpoint_ops method for hardware watchpoints. */
+
+static int
+insert_watchpoint (struct bp_location *bl)
+{
+ int length = bl->owner->exact? 1 : bl->length;
+
+ return target_insert_watchpoint (bl->address, length, bl->watchpoint_type,
+ bl->owner->cond_exp);
+}
+
+/* Implement the "remove" breakpoint_ops method for hardware watchpoints. */
+
+static int
+remove_watchpoint (struct bp_location *bl)
+{
+ int length = bl->owner->exact? 1 : bl->length;
+
+ return target_remove_watchpoint (bl->address, length, bl->watchpoint_type,
+ bl->owner->cond_exp);
+}
+
+/* Implement the "resources_needed" breakpoint_ops method for
+ hardware watchpoints. */
+
+static int
+resources_needed_watchpoint (const struct bp_location *bl)
+{
+ int length = bl->owner->exact? 1 : bl->length;
+
+ return target_region_ok_for_hw_watchpoint (bl->address, length);
+}
+
+/* The breakpoint_ops structure to be used in hardware watchpoints. */
+
+static struct breakpoint_ops watchpoint_breakpoint_ops =
+{
+ insert_watchpoint,
+ remove_watchpoint,
+ NULL, /* breakpoint_hit */
+ resources_needed_watchpoint,
+ NULL, /* print_it */
+ NULL, /* print_one */
+ NULL, /* print_mention */
+ NULL /* print_recreate */
+};
+
/* accessflag: hw_write: watch write,
hw_read: watch read,
hw_access: watch access (read or write) */
char *cond_end = NULL;
int i, other_type_used, target_resources_ok = 0;
enum bptype bp_type;
- int mem_cnt = 0;
+ int reg_cnt = 0;
int thread = -1;
int pc = 0;
else
bp_type = bp_hardware_watchpoint;
- mem_cnt = can_use_hardware_watchpoint (val);
- if (mem_cnt == 0 && bp_type != bp_hardware_watchpoint)
+ reg_cnt = can_use_hardware_watchpoint (val, target_exact_watchpoints);
+ if (reg_cnt == 0 && bp_type != bp_hardware_watchpoint)
error (_("Expression cannot be implemented with read/access watchpoint."));
- if (mem_cnt != 0)
+ if (reg_cnt != 0)
{
i = hw_watchpoint_used_count (bp_type, &other_type_used);
target_resources_ok =
- target_can_use_hardware_watchpoint (bp_type, i + mem_cnt,
+ target_can_use_hardware_watchpoint (bp_type, i + reg_cnt,
other_type_used);
if (target_resources_ok == 0 && bp_type != bp_hardware_watchpoint)
error (_("Target does not support this type of hardware watchpoint."));
if (target_resources_ok < 0 && bp_type != bp_hardware_watchpoint)
- error (_("Target can only support one kind of HW watchpoint at a time."));
+ error (_("Target can only support one kind "
+ "of HW watchpoint at a time."));
}
/* Change the type of breakpoint to an ordinary watchpoint if a
hardware watchpoint could not be set. */
- if (!mem_cnt || target_resources_ok <= 0)
+ if (!reg_cnt || target_resources_ok <= 0)
bp_type = bp_watchpoint;
frame = block_innermost_frame (exp_valid_block);
b->exp_string = savestring (exp_start, exp_end - exp_start);
b->val = val;
b->val_valid = 1;
+ b->ops = &watchpoint_breakpoint_ops;
+
+ /* Use an exact watchpoint when there's only one memory region to be
+ watched, and only one debug register is needed to watch it. */
+ b->exact = target_exact_watchpoints && reg_cnt == 1;
+
if (cond_start)
b->cond_string = savestring (cond_start, cond_end - cond_start);
else
update_global_location_list (1);
}
-/* Return count of locations need to be watched and can be handled in
- hardware. If the watchpoint can not be handled in hardware return
- zero. */
+/* Return count of debug registers needed to watch the given expression.
+ If EXACT_WATCHPOINTS is 1, then consider that only the address of
+ the start of the watched region will be monitored (i.e., all accesses
+ will be aligned). This uses less debug registers on some targets.
+
+ If the watchpoint cannot be handled in hardware return zero. */
static int
-can_use_hardware_watchpoint (struct value *v)
+can_use_hardware_watchpoint (struct value *v, int exact_watchpoints)
{
int found_memory_cnt = 0;
struct value *head = v;
&& TYPE_CODE (vtype) != TYPE_CODE_ARRAY))
{
CORE_ADDR vaddr = value_address (v);
- int len = TYPE_LENGTH (value_type (v));
+ int len;
+ int num_regs;
- if (!target_region_ok_for_hw_watchpoint (vaddr, len))
+ len = (exact_watchpoints
+ && is_scalar_type_recursive (vtype))?
+ 1 : TYPE_LENGTH (value_type (v));
+
+ num_regs = target_region_ok_for_hw_watchpoint (vaddr, len);
+ if (!num_regs)
return 0;
else
- found_memory_cnt++;
+ found_memory_cnt += num_regs;
}
}
}
NULL, /* insert */
NULL, /* remove */
NULL, /* breakpoint_hit */
+ NULL, /* resources_needed */
print_exception_catchpoint,
print_one_exception_catchpoint,
print_mention_exception_catchpoint,
/* Implement the "catch assert" command. */
static void
-catch_assert_command (char *arg, int from_tty, struct cmd_list_element *command)
+catch_assert_command (char *arg, int from_tty,
+ struct cmd_list_element *command)
{
struct gdbarch *gdbarch = get_current_arch ();
int tempflag;
&& b->source_file != NULL
&& sal.symtab != NULL
&& sal.pspace == loc->pspace
- && strcmp (b->source_file, sal.symtab->filename) == 0
+ && strcmp (b->source_file,
+ sal.symtab->filename) == 0
&& b->line_number == sal.line);
if (pc_match || line_match)
{
Note that at this point, old_loc->owner is still
valid, as delete_breakpoint frees the breakpoint
only after calling us. */
- printf_filtered (_("warning: Error removing breakpoint %d\n"),
+ printf_filtered (_("warning: Error removing "
+ "breakpoint %d\n"),
old_loc->owner->number);
}
removed = 1;
}
if (e.reason < 0)
{
- warning (_("failed to reevaluate condition for breakpoint %d: %s"),
+ warning (_("failed to reevaluate condition "
+ "for breakpoint %d: %s"),
b->number, e.message);
new_loc->enabled = 0;
}
error (_("marker %s not found"), b->static_trace_marker_id);
}
else
- sals = decode_line_1 (&s, 1, (struct symtab *) NULL, 0, (char ***) NULL,
- not_found_ptr);
+ sals = decode_line_1 (&s, 1, (struct symtab *) NULL, 0,
+ (char ***) NULL, not_found_ptr);
}
if (e.reason < 0)
{
if (from_tty)
{
if (count == 0)
- printf_filtered (_("Will stop next time breakpoint %d is reached."),
+ printf_filtered (_("Will stop next time "
+ "breakpoint %d is reached."),
bptnum);
else if (count == 1)
printf_filtered (_("Will ignore next crossing of breakpoint %d."),
bptnum);
else
- printf_filtered (_("Will ignore next %d crossings of breakpoint %d."),
+ printf_filtered (_("Will ignore next %d "
+ "crossings of breakpoint %d."),
count, bptnum);
}
breakpoints_changed ();
error (_("No breakpoint number %d."), bptnum);
}
-void
-make_breakpoint_silent (struct breakpoint *b)
-{
- /* Silence the breakpoint. */
- b->silent = 1;
-}
-
/* Command to set ignore-count of breakpoint N to COUNT. */
static void
address. Since there is no way to confirm that the address
means the same thing as when the trace was started, warn the
user. */
- warning (_("Uploaded tracepoint %d has no source location, using raw address"),
+ warning (_("Uploaded tracepoint %d has no "
+ "source location, using raw address"),
utp->number);
sprintf (small_buf, "*%s", hex_string (utp->addr));
addr_str = small_buf;
/* There's not much we can do with a sequence of bytecodes. */
if (utp->cond && !utp->cond_string)
- warning (_("Uploaded tracepoint %d condition has no source form, ignoring it"),
+ warning (_("Uploaded tracepoint %d condition "
+ "has no source form, ignoring it"),
utp->number);
if (!create_breakpoint (get_current_arch (),
}
else if (!VEC_empty (char_ptr, utp->actions)
|| !VEC_empty (char_ptr, utp->step_actions))
- warning (_("Uploaded tracepoint %d actions have no source form, ignoring them"),
+ warning (_("Uploaded tracepoint %d actions "
+ "have no source form, ignoring them"),
utp->number);
return tp;
int all = 0;
if (args == 0 || *args == 0)
- error (_("passcount command requires an argument (count + optional TP num)"));
+ error (_("passcount command requires an "
+ "argument (count + optional TP num)"));
count = strtoul (args, &args, 10); /* Count comes first, then TP num. */
t2->pass_count = count;
observer_notify_tracepoint_modified (t2->number);
if (from_tty)
- printf_filtered (_("Setting tracepoint %d's passcount to %d\n"),
+ printf_filtered (_("Setting tracepoint %d's "
+ "passcount to %d\n"),
t2->number, count);
}
if (! all && *args)
printf_filtered (_("bad tracepoint number at or near '%s'\n"),
instring);
else
- printf_filtered (_("Tracepoint argument missing and no previous tracepoint\n"));
+ printf_filtered (_("Tracepoint argument missing "
+ "and no previous tracepoint\n"));
return NULL;
}
ALL_BREAKPOINTS (tp)
{
/* Skip internal and momentary breakpoints. */
- if (!user_settable_breakpoint (tp) || tp->number < 0)
+ if (!user_breakpoint_p (tp))
continue;
/* If we have a filter, only save the breakpoints it accepts. */
ALL_BREAKPOINTS (tp)
{
/* Skip internal and momentary breakpoints. */
- if (!user_settable_breakpoint (tp) || tp->number < 0)
+ if (!user_breakpoint_p (tp))
continue;
/* If we have a filter, only save the breakpoints it accepts. */
static void
save_command (char *arg, int from_tty)
{
- printf_unfiltered (_("\
-\"save\" must be followed by the name of a save subcommand.\n"));
+ printf_unfiltered (_("\"save\" must be followed by "
+ "the name of a save subcommand.\n"));
help_list (save_cmdlist, "save ", -1, gdb_stdout);
}
projects / deliverable / binutils-gdb.git / blobdiff