enum exception_event_kind
{
EX_EVENT_THROW,
+ EX_EVENT_RETHROW,
EX_EVENT_CATCH
};
static void create_breakpoints_sal_default (struct gdbarch *,
struct linespec_result *,
- struct linespec_sals *,
char *, char *, enum bptype,
enum bpdisp, int, int,
int,
static void stopat_command (char *arg, int from_tty);
-static char *ep_parse_optional_if_clause (char **arg);
-
-static void catch_exception_command_1 (enum exception_event_kind ex_event,
- char *arg, int tempflag, int from_tty);
-
static void tcatch_command (char *arg, int from_tty);
static void detach_single_step_breakpoints (void);
static struct breakpoint_ops bkpt_probe_breakpoint_ops;
/* Dynamic printf class type. */
-static struct breakpoint_ops dprintf_breakpoint_ops;
+struct breakpoint_ops dprintf_breakpoint_ops;
/* The style in which to perform a dynamic printf. This is a user
option because different output options have different tradeoffs;
}
else
{
- char *arg = exp;
+ const char *arg = exp;
/* I don't know if it matters whether this is the string the user
typed in or the decompiled expression. */
/* Completion for the "condition" command. */
static VEC (char_ptr) *
-condition_completer (struct cmd_list_element *cmd, char *text, char *word)
+condition_completer (struct cmd_list_element *cmd,
+ const char *text, const char *word)
{
- char *space;
+ const char *space;
- text = skip_spaces (text);
- space = skip_to_space (text);
+ text = skip_spaces_const (text);
+ space = skip_to_space_const (text);
if (*space == '\0')
{
int len;
len = strlen (text);
ALL_BREAKPOINTS (b)
- {
- int single = b->loc->next == NULL;
- struct bp_location *loc;
- int count = 1;
-
- for (loc = b->loc; loc; loc = loc->next)
- {
- char location[50];
-
- if (single)
- xsnprintf (location, sizeof (location), "%d", b->number);
- else
- xsnprintf (location, sizeof (location), "%d.%d", b->number,
- count);
+ {
+ char number[50];
- if (strncmp (location, text, len) == 0)
- VEC_safe_push (char_ptr, result, xstrdup (location));
+ xsnprintf (number, sizeof (number), "%d", b->number);
- ++count;
- }
- }
+ if (strncmp (number, text, len) == 0)
+ VEC_safe_push (char_ptr, result, xstrdup (number));
+ }
return result;
}
/* We're completing the expression part. */
- text = skip_spaces (space);
+ text = skip_spaces_const (space);
return expression_completer (cmd, text, word);
}
{
if (is_tracepoint (b))
{
- /* We need to verify that each top-level element of commands is
- valid for tracepoints, that there's at most one
- while-stepping element, and that while-stepping's body has
- valid tracing commands excluding nested while-stepping. */
+ struct tracepoint *t = (struct tracepoint *) b;
struct command_line *c;
struct command_line *while_stepping = 0;
+
+ /* Reset the while-stepping step count. The previous commands
+ might have included a while-stepping action, while the new
+ ones might not. */
+ t->step_count = 0;
+
+ /* We need to verify that each top-level element of commands is
+ valid for tracepoints, that there's at most one
+ while-stepping element, and that the while-stepping's body
+ has valid tracing commands excluding nested while-stepping.
+ We also need to validate the tracepoint action line in the
+ context of the tracepoint --- validate_actionline actually
+ has side effects, like setting the tracepoint's
+ while-stepping STEP_COUNT, in addition to checking if the
+ collect/teval actions parse and make sense in the
+ tracepoint's context. */
for (c = commands; c; c = c->next)
{
if (c->control_type == while_stepping_control)
else
while_stepping = c;
}
+
+ validate_actionline (c->line, b);
}
if (while_stepping)
{
{
struct breakpoint *b = closure;
- validate_actionline (&line, b);
+ validate_actionline (line, b);
}
/* A structure used to pass information through
if (within_current_scope && reparse)
{
- char *s;
+ const char *s;
if (b->exp)
{
struct value *val_chain, *v, *result, *next;
struct program_space *frame_pspace;
- fetch_subexp_value (b->exp, &pc, &v, &result, &val_chain);
+ fetch_subexp_value (b->exp, &pc, &v, &result, &val_chain, 0);
/* Avoid setting b->val if it's already set. The meaning of
b->val is 'the last value' user saw, and we should update
parse_cond_to_aexpr (CORE_ADDR scope, struct expression *cond)
{
struct agent_expr *aexpr = NULL;
- struct cleanup *old_chain = NULL;
volatile struct gdb_exception ex;
if (!cond)
struct cleanup *old_cleanups = 0;
struct expression *expr, **argvec;
struct agent_expr *aexpr = NULL;
- struct cleanup *old_chain = NULL;
volatile struct gdb_exception ex;
- char *cmdrest;
- char *format_start, *format_end;
+ const char *cmdrest;
+ const char *format_start, *format_end;
struct format_piece *fpieces;
int nargs;
struct gdbarch *gdbarch = get_current_arch ();
if (*cmdrest == ',')
++cmdrest;
- cmdrest = skip_spaces (cmdrest);
+ cmdrest = skip_spaces_const (cmdrest);
if (*cmdrest++ != '"')
error (_("No format string following the location"));
if (*cmdrest++ != '"')
error (_("Bad format string, non-terminated '\"'."));
- cmdrest = skip_spaces (cmdrest);
+ cmdrest = skip_spaces_const (cmdrest);
if (!(*cmdrest == ',' || *cmdrest == '\0'))
error (_("Invalid argument syntax"));
if (*cmdrest == ',')
cmdrest++;
- cmdrest = skip_spaces (cmdrest);
+ cmdrest = skip_spaces_const (cmdrest);
/* For each argument, make an expression. */
nargs = 0;
while (*cmdrest != '\0')
{
- char *cmd1;
+ const char *cmd1;
cmd1 = cmdrest;
expr = parse_exp_1 (&cmd1, scope, block_for_pc (scope), 1);
fpieces, nargs, argvec);
}
+ do_cleanups (old_cleanups);
+
if (ex.reason < 0)
{
/* If we got here, it means the command could not be parsed to a valid
return NULL;
}
- do_cleanups (old_cleanups);
-
/* We have a valid agent expression, return it. */
return aexpr;
}
{
/* Only go as far as the first NULL bytecode is
located. */
- if (!loc->cond_bytecode)
+ if (loc->cmd_bytecode == NULL)
return;
- free_agent_expr (loc->cond_bytecode);
- loc->cond_bytecode = NULL;
+ free_agent_expr (loc->cmd_bytecode);
+ loc->cmd_bytecode = NULL;
}
}
}
}
else
{
+ char *message = memory_error_message (TARGET_XFER_E_IO,
+ bl->gdbarch, bl->address);
+ struct cleanup *old_chain = make_cleanup (xfree, message);
+
fprintf_unfiltered (tmp_error_stream,
- "Cannot insert breakpoint %d.\n",
- bl->owner->number);
- fprintf_filtered (tmp_error_stream,
- "Error accessing memory address ");
- fputs_filtered (paddress (bl->gdbarch, bl->address),
- tmp_error_stream);
- fprintf_filtered (tmp_error_stream, ": %s.\n",
- safe_strerror (val));
+ "Cannot insert breakpoint %d.\n"
+ "%s\n",
+ bl->owner->number, message);
+
+ do_cleanups (old_chain);
}
}
return val;
}
+/* When a thread exits, remove breakpoints that are related to
+ that thread. */
+
+static void
+remove_threaded_breakpoints (struct thread_info *tp, int silent)
+{
+ struct breakpoint *b, *b_tmp;
+
+ ALL_BREAKPOINTS_SAFE (b, b_tmp)
+ {
+ if (b->thread == tp->num && user_breakpoint_p (b))
+ {
+ b->disposition = disp_del_at_next_stop;
+
+ printf_filtered (_("\
+Thread-specific breakpoint %d deleted - thread %d no longer in the thread list.\n"),
+ b->number, tp->num);
+
+ /* Hide it from the user. */
+ b->number = 0;
+ }
+ }
+}
+
/* Remove breakpoints of process PID. */
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;
}
struct cleanup *old_chain = save_inferior_ptid ();
struct inferior *inf = current_inferior ();
- if (PIDGET (ptid) == PIDGET (inferior_ptid))
+ if (ptid_get_pid (ptid) == ptid_get_pid (inferior_ptid))
error (_("Cannot detach breakpoints of inferior_ptid"));
/* Set inferior_ptid; remove_breakpoint_1 uses this global. */
if (bl->pspace != inf->pspace)
continue;
+ /* This function must physically remove breakpoints locations
+ from the specified ptid, without modifying the breakpoint
+ package's state. Locations of type bp_loc_other are only
+ maintained at GDB side. So, there is no need to remove
+ these bp_loc_other locations. Moreover, removing these
+ would modify the breakpoint package's state. */
+ if (bl->loc_type == bp_loc_other)
+ continue;
+
if (bl->inserted)
val |= remove_breakpoint_1 (bl, mark_inserted);
}
/* 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;
return WP_VALUE_CHANGED;
mark = value_mark ();
- fetch_subexp_value (b->exp, &pc, &new_val, NULL, NULL);
+ fetch_subexp_value (b->exp, &pc, &new_val, NULL, NULL, 0);
/* We use value_equal_contents instead of value_equal because
the latter coerces an array to a pointer, thus comparing just
if (command_line_is_silent (bs->commands
? bs->commands->commands : NULL))
bs->print = 0;
+
+ b->ops->after_condition_true (bs);
}
}
target_terminal_inferior ();
}
-/* Handle an solib event by calling solib_add. */
-
-void
-handle_solib_event (void)
-{
- clear_program_space_solib_cache (current_inferior ()->pspace);
-
- /* Check for any newly added shared libraries if we're supposed to
- be adding them automatically. Switch terminal for any messages
- produced by breakpoint_re_set. */
- target_terminal_ours_for_output ();
-#ifdef SOLIB_ADD
- SOLIB_ADD (NULL, 0, ¤t_target, auto_solib_add);
-#else
- solib_add (NULL, 0, ¤t_target, auto_solib_add);
-#endif
- target_terminal_inferior ();
-}
-
/* Prepare WHAT final decision for infrun. */
/* Decide what infrun needs to do with this bpstat. */
break;
case bp_dprintf:
- this_action = BPSTAT_WHAT_STOP_SILENT;
+ if (bs->stop)
+ this_action = BPSTAT_WHAT_STOP_SILENT;
+ else
+ this_action = BPSTAT_WHAT_SINGLE;
break;
default:
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'. */
VEC(int) *inf_num,
int mi_only)
{
- struct cleanup *back_to = make_cleanup_ui_out_list_begin_end (uiout,
- field_name);
+ struct cleanup *back_to;
int is_mi = ui_out_is_mi_like_p (uiout);
int inf;
int i;
if (!is_mi && mi_only)
return;
+ back_to = make_cleanup_ui_out_list_begin_end (uiout, field_name);
+
for (i = 0; VEC_iterate (int, inf_num, i, inf); ++i)
{
if (is_mi)
|| (is_tracepoint (b)))
&& loc->pspace == current_program_space
&& !loc->shlib_disabled
-#ifdef PC_SOLIB
- && PC_SOLIB (loc->address)
-#else
&& solib_name_from_address (loc->pspace, loc->address)
-#endif
)
{
loc->shlib_disabled = 1;
static int
insert_catch_fork (struct bp_location *bl)
{
- return target_insert_fork_catchpoint (PIDGET (inferior_ptid));
+ return target_insert_fork_catchpoint (ptid_get_pid (inferior_ptid));
}
/* Implement the "remove" breakpoint_ops method for fork
static int
remove_catch_fork (struct bp_location *bl)
{
- return target_remove_fork_catchpoint (PIDGET (inferior_ptid));
+ return target_remove_fork_catchpoint (ptid_get_pid (inferior_ptid));
}
/* Implement the "breakpoint_hit" breakpoint_ops method for fork
static int
insert_catch_vfork (struct bp_location *bl)
{
- return target_insert_vfork_catchpoint (PIDGET (inferior_ptid));
+ return target_insert_vfork_catchpoint (ptid_get_pid (inferior_ptid));
}
/* Implement the "remove" breakpoint_ops method for vfork
static int
remove_catch_vfork (struct bp_location *bl)
{
- return target_remove_vfork_catchpoint (PIDGET (inferior_ptid));
+ return target_remove_vfork_catchpoint (ptid_get_pid (inferior_ptid));
}
/* Implement the "breakpoint_hit" breakpoint_ops method for vfork
}
}
- return target_set_syscall_catchpoint (PIDGET (inferior_ptid),
+ return target_set_syscall_catchpoint (ptid_get_pid (inferior_ptid),
inf_data->total_syscalls_count != 0,
inf_data->any_syscall_count,
VEC_length (int,
}
}
- return target_set_syscall_catchpoint (PIDGET (inferior_ptid),
+ return target_set_syscall_catchpoint (ptid_get_pid (inferior_ptid),
inf_data->total_syscalls_count != 0,
inf_data->any_syscall_count,
VEC_length (int,
static int
insert_catch_exec (struct bp_location *bl)
{
- return target_insert_exec_catchpoint (PIDGET (inferior_ptid));
+ return target_insert_exec_catchpoint (ptid_get_pid (inferior_ptid));
}
static int
remove_catch_exec (struct bp_location *bl)
{
- return target_remove_exec_catchpoint (PIDGET (inferior_ptid));
+ return target_remove_exec_catchpoint (ptid_get_pid (inferior_ptid));
}
static int
_("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);
if (b->cond_string)
{
- char *arg = b->cond_string;
+ const char *arg = b->cond_string;
+
loc->cond = parse_exp_1 (&arg, loc->address,
block_for_pc (loc->address), 0);
if (*arg)
If no thread is found, *THREAD is set to -1. */
static void
-find_condition_and_thread (char *tok, CORE_ADDR pc,
+find_condition_and_thread (const char *tok, CORE_ADDR pc,
char **cond_string, int *thread, int *task,
char **rest)
{
while (tok && *tok)
{
- char *end_tok;
+ const char *end_tok;
int toklen;
- char *cond_start = NULL;
- char *cond_end = NULL;
+ const char *cond_start = NULL;
+ const char *cond_end = NULL;
- tok = skip_spaces (tok);
+ tok = skip_spaces_const (tok);
if ((*tok == '"' || *tok == ',') && rest)
{
return;
}
- end_tok = skip_to_space (tok);
+ end_tok = skip_to_space_const (tok);
toklen = end_tok - tok;
char *tmptok;
tok = end_tok + 1;
- tmptok = tok;
- *thread = strtol (tok, &tok, 0);
+ *thread = strtol (tok, &tmptok, 0);
if (tok == tmptok)
error (_("Junk after thread keyword."));
if (!valid_thread_id (*thread))
invalid_thread_id_error (*thread);
+ tok = tmptok;
}
else if (toklen >= 1 && strncmp (tok, "task", toklen) == 0)
{
char *tmptok;
tok = end_tok + 1;
- tmptok = tok;
- *task = strtol (tok, &tok, 0);
+ *task = strtol (tok, &tmptok, 0);
if (tok == tmptok)
error (_("Junk after task keyword."));
if (!valid_task_id (*task))
error (_("Unknown task %d."), *task);
+ tok = tmptok;
}
else if (rest)
{
/* Set a breakpoint. This function is shared between CLI and MI
functions for setting a breakpoint. This function has two major
- modes of operations, selected by the PARSE_CONDITION_AND_THREAD
- parameter. If non-zero, the function will parse arg, extracting
- breakpoint location, address and thread. Otherwise, ARG is just
- the location of breakpoint, with condition and thread specified by
- the COND_STRING and THREAD parameters. If INTERNAL is non-zero,
- the breakpoint number will be allocated from the internal
- breakpoint count. Returns true if any breakpoint was created;
- false otherwise. */
+ modes of operations, selected by the PARSE_ARG parameter. If
+ non-zero, the function will parse ARG, extracting location,
+ condition, thread and extra string. Otherwise, ARG is just the
+ breakpoint's location, with condition, thread, and extra string
+ specified by the COND_STRING, THREAD and EXTRA_STRING parameters.
+ If INTERNAL is non-zero, the breakpoint number will be allocated
+ from the internal breakpoint count. Returns true if any breakpoint
+ was created; false otherwise. */
int
create_breakpoint (struct gdbarch *gdbarch,
char *arg, char *cond_string,
int thread, char *extra_string,
- int parse_condition_and_thread,
+ int parse_arg,
int tempflag, enum bptype type_wanted,
int ignore_count,
enum auto_boolean pending_break_support,
breakpoint. */
if (!pending)
{
- struct linespec_sals *lsal;
+ if (parse_arg)
+ {
+ char *rest;
+ struct linespec_sals *lsal;
- lsal = VEC_index (linespec_sals, canonical.sals, 0);
+ lsal = VEC_index (linespec_sals, canonical.sals, 0);
- if (parse_condition_and_thread)
- {
- 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;
+ /* 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
{
- /* 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,
init_raw_breakpoint_without_location (b, gdbarch, type_wanted, ops);
b->addr_string = copy_arg;
- if (parse_condition_and_thread)
+ if (parse_arg)
b->cond_string = NULL;
else
{
if (sym != NULL)
{
fixup_symbol_section (sym, sal->symtab->objfile);
- sal->section = SYMBOL_OBJ_SECTION (sym);
+ sal->section = SYMBOL_OBJ_SECTION (sal->symtab->objfile, sym);
}
else
{
if we have line numbers but no functions (as can
happen in assembly source). */
- struct minimal_symbol *msym;
+ struct bound_minimal_symbol msym;
struct cleanup *old_chain = save_current_space_and_thread ();
switch_to_program_space_and_thread (sal->pspace);
msym = lookup_minimal_symbol_by_pc (sal->pc);
- if (msym)
- sal->section = SYMBOL_OBJ_SECTION (msym);
+ if (msym.minsym)
+ sal->section = SYMBOL_OBJ_SECTION (msym.objfile, msym.minsym);
do_cleanups (old_chain);
}
case OP_TYPE:
case OP_TYPEOF:
case OP_DECLTYPE:
+ case OP_TYPEID:
case OP_NAME:
case OP_OBJC_NSSTRING:
{
struct cleanup *old_chain;
struct breakpoint *b;
- const struct bp_location *bl;
struct ui_file *stb;
enum print_stop_action result;
struct watchpoint *w;
gdb_assert (bs->bp_location_at != NULL);
- bl = bs->bp_location_at;
b = bs->breakpoint_at;
w = (struct watchpoint *) b;
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;
hw_read: watch read,
hw_access: watch access (read or write) */
static void
-watch_command_1 (char *arg, int accessflag, int from_tty,
+watch_command_1 (const char *arg, int accessflag, int from_tty,
int just_location, int internal)
{
volatile struct gdb_exception e;
const struct block *exp_valid_block = NULL, *cond_exp_valid_block = NULL;
struct value *val, *mark, *result;
struct frame_info *frame;
- char *exp_start = NULL;
- char *exp_end = NULL;
- char *tok, *end_tok;
+ const char *exp_start = NULL;
+ const char *exp_end = NULL;
+ const char *tok, *end_tok;
int toklen = -1;
- char *cond_start = NULL;
- char *cond_end = NULL;
+ const char *cond_start = NULL;
+ const char *cond_end = NULL;
enum bptype bp_type;
int thread = -1;
int pc = 0;
int use_mask = 0;
CORE_ADDR mask = 0;
struct watchpoint *w;
+ char *expression;
+ struct cleanup *back_to;
/* Make sure that we actually have parameters to parse. */
if (arg != NULL && arg[0] != '\0')
{
- char *value_start;
+ const char *value_start;
+
+ exp_end = arg + strlen (arg);
/* Look for "parameter value" pairs at the end
of the arguments string. */
- for (tok = arg + strlen (arg) - 1; tok > arg; tok--)
+ for (tok = exp_end - 1; tok > arg; tok--)
{
/* Skip whitespace at the end of the argument list. */
while (tok > arg && (*tok == ' ' || *tok == '\t'))
/* Truncate the string and get rid of the "parameter value" pair before
the arguments string is parsed by the parse_exp_1 function. */
- *tok = '\0';
+ exp_end = tok;
}
}
+ else
+ exp_end = arg;
- /* Parse the rest of the arguments. */
+ /* Parse the rest of the arguments. From here on out, everything
+ is in terms of a newly allocated string instead of the original
+ ARG. */
innermost_block = NULL;
- exp_start = arg;
+ expression = savestring (arg, exp_end - arg);
+ back_to = make_cleanup (xfree, expression);
+ exp_start = arg = expression;
exp = parse_exp_1 (&arg, 0, 0, 0);
exp_end = arg;
/* Remove trailing whitespace from the expression before saving it.
exp_valid_block = innermost_block;
mark = value_mark ();
- fetch_subexp_value (exp, &pc, &val, &result, NULL);
+ fetch_subexp_value (exp, &pc, &val, &result, NULL, just_location);
if (just_location)
{
else if (val != NULL)
release_value (val);
- tok = skip_spaces (arg);
- end_tok = skip_to_space (tok);
+ tok = skip_spaces_const (arg);
+ end_tok = skip_to_space_const (tok);
toklen = end_tok - tok;
if (toklen >= 1 && strncmp (tok, "if", toklen) == 0)
}
install_breakpoint (internal, b, 1);
+ do_cleanups (back_to);
}
/* Return count of debug registers needed to watch the given expression.
it updates arg to point to the first character following the parsed
if clause in the arg string. */
-static char *
+char *
ep_parse_optional_if_clause (char **arg)
{
char *cond_string;
install_breakpoint (0, &c->base, 1);
}
-static enum print_stop_action
-print_it_exception_catchpoint (bpstat bs)
-{
- struct ui_out *uiout = current_uiout;
- struct breakpoint *b = bs->breakpoint_at;
- int bp_temp, bp_throw;
-
- annotate_catchpoint (b->number);
-
- bp_throw = strstr (b->addr_string, "throw") != NULL;
- if (b->loc->address != b->loc->requested_address)
- breakpoint_adjustment_warning (b->loc->requested_address,
- b->loc->address,
- b->number, 1);
- bp_temp = b->disposition == disp_del;
- ui_out_text (uiout,
- bp_temp ? "Temporary catchpoint "
- : "Catchpoint ");
- if (!ui_out_is_mi_like_p (uiout))
- ui_out_field_int (uiout, "bkptno", b->number);
- ui_out_text (uiout,
- bp_throw ? " (exception thrown), "
- : " (exception caught), ");
- if (ui_out_is_mi_like_p (uiout))
- {
- ui_out_field_string (uiout, "reason",
- async_reason_lookup (EXEC_ASYNC_BREAKPOINT_HIT));
- ui_out_field_string (uiout, "disp", bpdisp_text (b->disposition));
- ui_out_field_int (uiout, "bkptno", b->number);
- }
- return PRINT_SRC_AND_LOC;
-}
-
-static void
-print_one_exception_catchpoint (struct breakpoint *b,
- struct bp_location **last_loc)
-{
- struct value_print_options opts;
- struct ui_out *uiout = current_uiout;
-
- get_user_print_options (&opts);
- if (opts.addressprint)
- {
- annotate_field (4);
- if (b->loc == NULL || b->loc->shlib_disabled)
- ui_out_field_string (uiout, "addr", "<PENDING>");
- else
- ui_out_field_core_addr (uiout, "addr",
- b->loc->gdbarch, b->loc->address);
- }
- annotate_field (5);
- if (b->loc)
- *last_loc = b->loc;
- if (strstr (b->addr_string, "throw") != NULL)
- {
- ui_out_field_string (uiout, "what", "exception throw");
- if (ui_out_is_mi_like_p (uiout))
- ui_out_field_string (uiout, "catch-type", "throw");
- }
- else
- {
- ui_out_field_string (uiout, "what", "exception catch");
- if (ui_out_is_mi_like_p (uiout))
- ui_out_field_string (uiout, "catch-type", "catch");
- }
-}
-
-static void
-print_mention_exception_catchpoint (struct breakpoint *b)
-{
- struct ui_out *uiout = current_uiout;
- int bp_temp;
- int bp_throw;
-
- bp_temp = b->disposition == disp_del;
- bp_throw = strstr (b->addr_string, "throw") != NULL;
- ui_out_text (uiout, bp_temp ? _("Temporary catchpoint ")
- : _("Catchpoint "));
- ui_out_field_int (uiout, "bkptno", b->number);
- ui_out_text (uiout, bp_throw ? _(" (throw)")
- : _(" (catch)"));
-}
-
-/* Implement the "print_recreate" breakpoint_ops method for throw and
- catch catchpoints. */
-
-static void
-print_recreate_exception_catchpoint (struct breakpoint *b,
- struct ui_file *fp)
-{
- int bp_temp;
- int bp_throw;
-
- bp_temp = b->disposition == disp_del;
- bp_throw = strstr (b->addr_string, "throw") != NULL;
- fprintf_unfiltered (fp, bp_temp ? "tcatch " : "catch ");
- fprintf_unfiltered (fp, bp_throw ? "throw" : "catch");
- print_recreate_thread (b, fp);
-}
-
-static struct breakpoint_ops gnu_v3_exception_catchpoint_ops;
-
-static int
-handle_gnu_v3_exceptions (int tempflag, char *cond_string,
- enum exception_event_kind ex_event, int from_tty)
-{
- char *trigger_func_name;
-
- if (ex_event == EX_EVENT_CATCH)
- trigger_func_name = "__cxa_begin_catch";
- else
- trigger_func_name = "__cxa_throw";
-
- create_breakpoint (get_current_arch (),
- trigger_func_name, cond_string, -1, NULL,
- 0 /* condition and thread are valid. */,
- tempflag, bp_breakpoint,
- 0,
- AUTO_BOOLEAN_TRUE /* pending */,
- &gnu_v3_exception_catchpoint_ops, from_tty,
- 1 /* enabled */,
- 0 /* internal */,
- 0);
-
- return 1;
-}
-
-/* Deal with "catch catch" and "catch throw" commands. */
-
-static void
-catch_exception_command_1 (enum exception_event_kind ex_event, char *arg,
- int tempflag, int from_tty)
-{
- char *cond_string = NULL;
-
- if (!arg)
- arg = "";
- arg = skip_spaces (arg);
-
- cond_string = ep_parse_optional_if_clause (&arg);
-
- if ((*arg != '\0') && !isspace (*arg))
- error (_("Junk at end of arguments."));
-
- if (ex_event != EX_EVENT_THROW
- && ex_event != EX_EVENT_CATCH)
- error (_("Unsupported or unknown exception event; cannot catch it"));
-
- if (handle_gnu_v3_exceptions (tempflag, cond_string, ex_event, from_tty))
- return;
-
- warning (_("Unsupported with this platform/compiler combination."));
-}
-
-/* Implementation of "catch catch" command. */
-
-static void
-catch_catch_command (char *arg, int from_tty, struct cmd_list_element *command)
-{
- int tempflag = get_cmd_context (command) == CATCH_TEMPORARY;
-
- catch_exception_command_1 (EX_EVENT_CATCH, arg, tempflag, from_tty);
-}
-
-/* Implementation of "catch throw" command. */
-
-static void
-catch_throw_command (char *arg, int from_tty, struct cmd_list_element *command)
-{
- int tempflag = get_cmd_context (command) == CATCH_TEMPORARY;
-
- catch_exception_command_1 (EX_EVENT_THROW, arg, tempflag, from_tty);
-}
-
void
init_ada_exception_breakpoint (struct breakpoint *b,
struct gdbarch *gdbarch,
static void
say_where (struct breakpoint *b)
{
- struct ui_out *uiout = current_uiout;
struct value_print_options opts;
get_user_print_options (&opts);
{
decref_counted_command_line (&self->commands);
xfree (self->cond_string);
+ xfree (self->extra_string);
xfree (self->addr_string);
xfree (self->filter);
xfree (self->addr_string_range_end);
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. */
struct address_space *aspace, CORE_ADDR bp_addr,
const struct target_waitstatus *ws)
{
- struct breakpoint *b = bl->owner;
-
if (ws->kind != TARGET_WAITKIND_STOPPED
|| ws->value.sig != GDB_SIGNAL_TRAP)
return 0;
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 enum print_stop_action
internal_bkpt_print_it (bpstat bs)
{
- struct ui_out *uiout = current_uiout;
struct breakpoint *b;
b = bs->breakpoint_at;
momentary_bkpt_re_set (struct breakpoint *b)
{
/* Keep temporary breakpoints, which can be encountered when we step
- over a dlopen call and SOLIB_ADD is resetting the breakpoints.
+ over a dlopen call and solib_add is resetting the breakpoints.
Otherwise these should have been blown away via the cleanup chain
or by breakpoint_init_inferior when we rerun the executable. */
}
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,
static struct breakpoint_ops tracepoint_probe_breakpoint_ops;
+/* Dprintf breakpoint_ops methods. */
+
+static void
+dprintf_re_set (struct breakpoint *b)
+{
+ breakpoint_re_set_default (b);
+
+ /* This breakpoint could have been pending, and be resolved now, and
+ if so, we should now have the extra string. If we don't, the
+ dprintf was malformed when created, but we couldn't tell because
+ we can't extract the extra string until the location is
+ resolved. */
+ if (b->loc != NULL && b->extra_string == NULL)
+ error (_("Format string required"));
+
+ /* 1 - connect to target 1, that can run breakpoint commands.
+ 2 - create a dprintf, which resolves fine.
+ 3 - disconnect from target 1
+ 4 - connect to target 2, that can NOT run breakpoint commands.
+
+ After steps #3/#4, you'll want the dprintf command list to
+ be updated, because target 1 and 2 may well return different
+ answers for target_can_run_breakpoint_commands().
+ Given absence of finer grained resetting, we get to do
+ it all the time. */
+ if (b->extra_string != NULL)
+ update_dprintf_command_list (b);
+}
+
+/* Implement the "print_recreate" breakpoint_ops method for dprintf. */
+
+static void
+dprintf_print_recreate (struct breakpoint *tp, struct ui_file *fp)
+{
+ fprintf_unfiltered (fp, "dprintf %s%s", tp->addr_string,
+ tp->extra_string);
+ 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
old symtab. */
if (b->cond_string != NULL)
{
- char *s;
+ const char *s;
volatile struct gdb_exception e;
s = b->cond_string;
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,
if (user_breakpoint_p (bpt))
disable_breakpoint (bpt);
}
- else if (strchr (args, '.'))
+ else
{
- struct bp_location *loc = find_location_by_number (args);
- if (loc)
+ char *num = extract_arg (&args);
+
+ while (num)
{
- if (loc->enabled)
+ if (strchr (num, '.'))
{
- loc->enabled = 0;
- mark_breakpoint_location_modified (loc);
+ struct bp_location *loc = find_location_by_number (num);
+
+ if (loc)
+ {
+ if (loc->enabled)
+ {
+ loc->enabled = 0;
+ mark_breakpoint_location_modified (loc);
+ }
+ if (target_supports_enable_disable_tracepoint ()
+ && current_trace_status ()->running && loc->owner
+ && is_tracepoint (loc->owner))
+ target_disable_tracepoint (loc);
+ }
+ update_global_location_list (0);
}
- if (target_supports_enable_disable_tracepoint ()
- && current_trace_status ()->running && loc->owner
- && is_tracepoint (loc->owner))
- target_disable_tracepoint (loc);
+ else
+ map_breakpoint_numbers (num, do_map_disable_breakpoint, NULL);
+ num = extract_arg (&args);
}
- update_global_location_list (0);
}
- else
- map_breakpoint_numbers (args, do_map_disable_breakpoint, NULL);
}
static void
if (user_breakpoint_p (bpt))
enable_breakpoint (bpt);
}
- else if (strchr (args, '.'))
+ else
{
- struct bp_location *loc = find_location_by_number (args);
- if (loc)
+ char *num = extract_arg (&args);
+
+ while (num)
{
- if (!loc->enabled)
+ if (strchr (num, '.'))
{
- loc->enabled = 1;
- mark_breakpoint_location_modified (loc);
+ struct bp_location *loc = find_location_by_number (num);
+
+ if (loc)
+ {
+ if (!loc->enabled)
+ {
+ loc->enabled = 1;
+ mark_breakpoint_location_modified (loc);
+ }
+ if (target_supports_enable_disable_tracepoint ()
+ && current_trace_status ()->running && loc->owner
+ && is_tracepoint (loc->owner))
+ target_enable_tracepoint (loc);
+ }
+ update_global_location_list (1);
}
- if (target_supports_enable_disable_tracepoint ()
- && current_trace_status ()->running && loc->owner
- && is_tracepoint (loc->owner))
- target_enable_tracepoint (loc);
+ else
+ map_breakpoint_numbers (num, do_map_enable_breakpoint, NULL);
+ num = extract_arg (&args);
}
- update_global_location_list (1);
}
- else
- map_breakpoint_numbers (args, do_map_enable_breakpoint, NULL);
}
/* This struct packages up disposition data for application to multiple
/* Complete syscall names. Used by "catch syscall". */
static VEC (char_ptr) *
catch_syscall_completer (struct cmd_list_element *cmd,
- char *text, char *word)
+ const char *text, const char *word)
{
const char **list = get_syscall_names ();
VEC (char_ptr) *retlist
{
struct breakpoint *tp;
int any = 0;
- char *pathname;
struct cleanup *cleanup;
struct ui_file *fp;
int extra_trace_bits = 0;
return;
}
- pathname = tilde_expand (filename);
- cleanup = make_cleanup (xfree, pathname);
- fp = gdb_fopen (pathname, "w");
+ filename = tilde_expand (filename);
+ cleanup = make_cleanup (xfree, filename);
+ fp = gdb_fopen (filename, "w");
if (!fp)
error (_("Unable to open file '%s' for saving (%s)"),
filename, safe_strerror (errno));
if (tp->ignore_count)
fprintf_unfiltered (fp, " ignore $bpnum %d\n", tp->ignore_count);
- if (tp->commands)
+ if (tp->type != bp_dprintf && tp->commands)
{
volatile struct gdb_exception ex;
if (extra_trace_bits && *default_collect)
fprintf_unfiltered (fp, "set default-collect %s\n", default_collect);
- do_cleanups (cleanup);
if (from_tty)
printf_filtered (_("Saved to file '%s'.\n"), filename);
+ do_cleanups (cleanup);
}
/* The `save breakpoints' command. */
ops->create_sals_from_address = bkpt_probe_create_sals_from_address;
ops->decode_linespec = bkpt_probe_decode_linespec;
- /* GNU v3 exception catchpoints. */
- ops = &gnu_v3_exception_catchpoint_ops;
- *ops = bkpt_breakpoint_ops;
- ops->print_it = print_it_exception_catchpoint;
- ops->print_one = print_one_exception_catchpoint;
- ops->print_mention = print_mention_exception_catchpoint;
- ops->print_recreate = print_recreate_exception_catchpoint;
-
/* Watchpoints. */
ops = &watchpoint_breakpoint_ops;
*ops = base_breakpoint_ops;
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 = &dprintf_breakpoint_ops;
*ops = bkpt_base_breakpoint_ops;
- ops->re_set = bkpt_re_set;
+ ops->re_set = dprintf_re_set;
ops->resources_needed = bkpt_resources_needed;
ops->print_it = bkpt_print_it;
ops->print_mention = bkpt_print_mention;
- ops->print_recreate = bkpt_print_recreate;
+ ops->print_recreate = dprintf_print_recreate;
+ ops->after_condition_true = dprintf_after_condition_true;
}
/* Chain containing all defined "enable breakpoint" subcommands. */
&tcatch_cmdlist, "tcatch ",
0/*allow-unknown*/, &cmdlist);
- /* Add catch and tcatch sub-commands. */
- add_catch_command ("catch", _("\
-Catch an exception, when caught."),
- catch_catch_command,
- NULL,
- CATCH_PERMANENT,
- CATCH_TEMPORARY);
- add_catch_command ("throw", _("\
-Catch an exception, when thrown."),
- catch_throw_command,
- NULL,
- CATCH_PERMANENT,
- CATCH_TEMPORARY);
add_catch_command ("fork", _("Catch calls to fork."),
catch_fork_command_1,
NULL,
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,
automatic_hardware_breakpoints = 1;
observer_attach_about_to_proceed (breakpoint_about_to_proceed);
+ observer_attach_thread_exit (remove_threaded_breakpoints);
}
projects / binutils.git / blobdiff