static void create_breakpoints_sal_default (struct gdbarch *,
struct linespec_result *,
- struct linespec_sals *,
char *, char *, enum bptype,
enum bpdisp, int, int,
int,
if (!bp_objfile_data->longjmp_searched)
{
- bp_objfile_data->longjmp_probes
- = find_probes_in_objfile (objfile, "libc", "longjmp");
+ VEC (probe_p) *ret;
+
+ ret = find_probes_in_objfile (objfile, "libc", "longjmp");
+ if (ret != NULL)
+ {
+ /* We are only interested in checking one element. */
+ struct probe *p = VEC_index (probe_p, ret, 0);
+
+ if (!can_evaluate_probe_arguments (p))
+ {
+ /* We cannot use the probe interface here, because it does
+ not know how to evaluate arguments. */
+ VEC_free (probe_p, ret);
+ ret = NULL;
+ }
+ }
+ bp_objfile_data->longjmp_probes = ret;
bp_objfile_data->longjmp_searched = 1;
}
/* We prefer the SystemTap probe point if it exists. */
if (!bp_objfile_data->exception_searched)
{
- bp_objfile_data->exception_probes
- = find_probes_in_objfile (objfile, "libgcc", "unwind");
+ VEC (probe_p) *ret;
+
+ ret = find_probes_in_objfile (objfile, "libgcc", "unwind");
+
+ if (ret != NULL)
+ {
+ /* We are only interested in checking one element. */
+ struct probe *p = VEC_index (probe_p, ret, 0);
+
+ if (!can_evaluate_probe_arguments (p))
+ {
+ /* We cannot use the probe interface here, because it does
+ not know how to evaluate arguments. */
+ VEC_free (probe_p, ret);
+ ret = NULL;
+ }
+ }
+ bp_objfile_data->exception_probes = ret;
bp_objfile_data->exception_searched = 1;
}
/* See breakpoint.h. */
enum bpstat_signal_value
-bpstat_explains_signal (bpstat bsp)
+bpstat_explains_signal (bpstat bsp, enum gdb_signal sig)
{
enum bpstat_signal_value result = BPSTAT_SIGNAL_NO;
{
/* Ensure that, if we ever entered this loop, then we at least
return BPSTAT_SIGNAL_HIDE. */
- enum bpstat_signal_value newval = BPSTAT_SIGNAL_HIDE;
+ enum bpstat_signal_value newval;
- if (bsp->breakpoint_at != NULL)
- newval = bsp->breakpoint_at->ops->explains_signal (bsp->breakpoint_at);
+ if (bsp->breakpoint_at == NULL)
+ {
+ /* A moribund location can never explain a signal other than
+ GDB_SIGNAL_TRAP. */
+ if (sig == GDB_SIGNAL_TRAP)
+ newval = BPSTAT_SIGNAL_HIDE;
+ else
+ newval = BPSTAT_SIGNAL_NO;
+ }
+ else
+ newval = bsp->breakpoint_at->ops->explains_signal (bsp->breakpoint_at,
+ sig);
if (newval > result)
result = newval;
if (command_line_is_silent (bs->commands
? bs->commands->commands : NULL))
bs->print = 0;
+
+ b->ops->after_condition_true (bs);
}
}
return bptypes[(int) type].description;
}
-DEF_VEC_I(int);
-
/* For MI, output a field named 'thread-groups' with a list as the value.
For CLI, prefix the list with the string 'inf'. */
_("Invalid dprintf style."));
gdb_assert (printf_line != NULL);
- /* Manufacture a printf/continue sequence. */
+ /* Manufacture a printf sequence. */
{
- struct command_line *printf_cmd_line, *cont_cmd_line = NULL;
-
- if (strcmp (dprintf_style, dprintf_style_agent) != 0)
- {
- cont_cmd_line = xmalloc (sizeof (struct command_line));
- cont_cmd_line->control_type = simple_control;
- cont_cmd_line->body_count = 0;
- cont_cmd_line->body_list = NULL;
- cont_cmd_line->next = NULL;
- cont_cmd_line->line = xstrdup ("continue");
- }
+ struct command_line *printf_cmd_line
+ = xmalloc (sizeof (struct command_line));
printf_cmd_line = xmalloc (sizeof (struct command_line));
printf_cmd_line->control_type = simple_control;
printf_cmd_line->body_count = 0;
printf_cmd_line->body_list = NULL;
- printf_cmd_line->next = cont_cmd_line;
+ printf_cmd_line->next = NULL;
printf_cmd_line->line = printf_line;
breakpoint_set_commands (b, printf_cmd_line);
breakpoint. */
if (!pending)
{
- struct linespec_sals *lsal;
-
- lsal = VEC_index (linespec_sals, canonical.sals, 0);
-
if (parse_arg)
{
- char *rest;
- /* Here we only parse 'arg' to separate condition
- from thread number, so parsing in context of first
- sal is OK. When setting the breakpoint we'll
- re-parse it in context of each sal. */
-
- find_condition_and_thread (arg, lsal->sals.sals[0].pc, &cond_string,
- &thread, &task, &rest);
- if (cond_string)
- make_cleanup (xfree, cond_string);
- if (rest)
- make_cleanup (xfree, rest);
- if (rest)
- extra_string = rest;
+ char *rest;
+ struct linespec_sals *lsal;
+
+ lsal = VEC_index (linespec_sals, canonical.sals, 0);
+
+ /* Here we only parse 'arg' to separate condition
+ from thread number, so parsing in context of first
+ sal is OK. When setting the breakpoint we'll
+ re-parse it in context of each sal. */
+
+ find_condition_and_thread (arg, lsal->sals.sals[0].pc, &cond_string,
+ &thread, &task, &rest);
+ if (cond_string)
+ make_cleanup (xfree, cond_string);
+ if (rest)
+ make_cleanup (xfree, rest);
+ if (rest)
+ extra_string = rest;
}
else
{
- if (*arg != '\0')
- error (_("Garbage '%s' at end of location"), arg);
-
- /* Create a private copy of condition string. */
- if (cond_string)
- {
- cond_string = xstrdup (cond_string);
- make_cleanup (xfree, cond_string);
- }
- /* Create a private copy of any extra string. */
- if (extra_string)
- {
- extra_string = xstrdup (extra_string);
- make_cleanup (xfree, extra_string);
- }
+ if (*arg != '\0')
+ error (_("Garbage '%s' at end of location"), arg);
+
+ /* Create a private copy of condition string. */
+ if (cond_string)
+ {
+ cond_string = xstrdup (cond_string);
+ make_cleanup (xfree, cond_string);
+ }
+ /* Create a private copy of any extra string. */
+ if (extra_string)
+ {
+ extra_string = xstrdup (extra_string);
+ make_cleanup (xfree, extra_string);
+ }
}
- ops->create_breakpoints_sal (gdbarch, &canonical, lsal,
+ ops->create_breakpoints_sal (gdbarch, &canonical,
cond_string, extra_string, type_wanted,
tempflag ? disp_del : disp_donttouch,
thread, task, ignore_count, ops,
print_recreate_thread (b, fp);
}
+/* Implement the "explains_signal" breakpoint_ops method for
+ watchpoints. */
+
+static enum bpstat_signal_value
+explains_signal_watchpoint (struct breakpoint *b, enum gdb_signal sig)
+{
+ /* A software watchpoint cannot cause a signal other than
+ GDB_SIGNAL_TRAP. */
+ if (b->type == bp_watchpoint && sig != GDB_SIGNAL_TRAP)
+ return BPSTAT_SIGNAL_NO;
+
+ return BPSTAT_SIGNAL_HIDE;
+}
+
/* The breakpoint_ops structure to be used in hardware watchpoints. */
static struct breakpoint_ops watchpoint_breakpoint_ops;
static void
base_breakpoint_create_breakpoints_sal (struct gdbarch *gdbarch,
struct linespec_result *c,
- struct linespec_sals *lsal,
char *cond_string,
char *extra_string,
enum bptype type_wanted,
/* The default 'explains_signal' method. */
static enum bpstat_signal_value
-base_breakpoint_explains_signal (struct breakpoint *b)
+base_breakpoint_explains_signal (struct breakpoint *b, enum gdb_signal sig)
{
return BPSTAT_SIGNAL_HIDE;
}
+/* The default "after_condition_true" method. */
+
+static void
+base_breakpoint_after_condition_true (struct bpstats *bs)
+{
+ /* Nothing to do. */
+}
+
struct breakpoint_ops base_breakpoint_ops =
{
base_breakpoint_dtor,
base_breakpoint_create_sals_from_address,
base_breakpoint_create_breakpoints_sal,
base_breakpoint_decode_linespec,
- base_breakpoint_explains_signal
+ base_breakpoint_explains_signal,
+ base_breakpoint_after_condition_true,
};
/* Default breakpoint_ops methods. */
static void
bkpt_create_breakpoints_sal (struct gdbarch *gdbarch,
struct linespec_result *canonical,
- struct linespec_sals *lsal,
char *cond_string,
char *extra_string,
enum bptype type_wanted,
int from_tty, int enabled,
int internal, unsigned flags)
{
- create_breakpoints_sal_default (gdbarch, canonical, lsal,
+ create_breakpoints_sal_default (gdbarch, canonical,
cond_string, extra_string,
type_wanted,
disposition, thread, task,
static void
tracepoint_create_breakpoints_sal (struct gdbarch *gdbarch,
struct linespec_result *canonical,
- struct linespec_sals *lsal,
char *cond_string,
char *extra_string,
enum bptype type_wanted,
int from_tty, int enabled,
int internal, unsigned flags)
{
- create_breakpoints_sal_default (gdbarch, canonical, lsal,
+ create_breakpoints_sal_default (gdbarch, canonical,
cond_string, extra_string,
type_wanted,
disposition, thread, task,
print_recreate_thread (tp, fp);
}
+/* Implement the "after_condition_true" breakpoint_ops method for
+ dprintf.
+
+ dprintf's are implemented with regular commands in their command
+ list, but we run the commands here instead of before presenting the
+ stop to the user, as dprintf's don't actually cause a stop. This
+ also makes it so that the commands of multiple dprintfs at the same
+ address are all handled. */
+
+static void
+dprintf_after_condition_true (struct bpstats *bs)
+{
+ struct cleanup *old_chain;
+ struct bpstats tmp_bs = { NULL };
+ struct bpstats *tmp_bs_p = &tmp_bs;
+
+ /* dprintf's never cause a stop. This wasn't set in the
+ check_status hook instead because that would make the dprintf's
+ condition not be evaluated. */
+ bs->stop = 0;
+
+ /* Run the command list here. Take ownership of it instead of
+ copying. We never want these commands to run later in
+ bpstat_do_actions, if a breakpoint that causes a stop happens to
+ be set at same address as this dprintf, or even if running the
+ commands here throws. */
+ tmp_bs.commands = bs->commands;
+ bs->commands = NULL;
+ old_chain = make_cleanup_decref_counted_command_line (&tmp_bs.commands);
+
+ bpstat_do_actions_1 (&tmp_bs_p);
+
+ /* 'tmp_bs.commands' will usually be NULL by now, but
+ bpstat_do_actions_1 may return early without processing the whole
+ list. */
+ do_cleanups (old_chain);
+}
+
/* The breakpoint_ops structure to be used on static tracepoints with
markers (`-m'). */
static void
strace_marker_create_breakpoints_sal (struct gdbarch *gdbarch,
struct linespec_result *canonical,
- struct linespec_sals *lsal,
char *cond_string,
char *extra_string,
enum bptype type_wanted,
int internal, unsigned flags)
{
int i;
+ struct linespec_sals *lsal = VEC_index (linespec_sals,
+ canonical->sals, 0);
/* If the user is creating a static tracepoint by marker id
(strace -m MARKER_ID), then store the sals index, so that
static void
create_breakpoints_sal_default (struct gdbarch *gdbarch,
struct linespec_result *canonical,
- struct linespec_sals *lsal,
char *cond_string,
char *extra_string,
enum bptype type_wanted,
ops->print_it = print_it_watchpoint;
ops->print_mention = print_mention_watchpoint;
ops->print_recreate = print_recreate_watchpoint;
+ ops->explains_signal = explains_signal_watchpoint;
/* Masked watchpoints. */
ops = &masked_watchpoint_breakpoint_ops;
ops->print_it = bkpt_print_it;
ops->print_mention = bkpt_print_mention;
ops->print_recreate = dprintf_print_recreate;
+ ops->after_condition_true = dprintf_after_condition_true;
}
/* Chain containing all defined "enable breakpoint" subcommands. */
dprintf location,format string,arg1,arg2,...\n\
location may be a line number, function name, or \"*\" and an address.\n\
If a line number is specified, break at start of code for that line.\n\
-If a function is specified, break at start of code for that function.\n\
-"));
+If a function is specified, break at start of code for that function."));
set_cmd_completer (c, location_completer);
add_setshow_enum_cmd ("dprintf-style", class_support,
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