MR_bool
MR_trace_proc_layout_is_builtin_catch(const MR_ProcLayout *layout)
{
const MR_UserProcId *user;
if (MR_PROC_LAYOUT_HAS_PROC_ID(layout)) {
if (! MR_PROC_LAYOUT_IS_UCI(layout)) {
user = &layout->MR_sle_user;
if (MR_streq(user->MR_user_decl_module, "exception") &&
MR_streq(user->MR_user_name, "builtin_catch") &&
(user->MR_user_arity == 3))
{
return MR_TRUE;
}
}
}
return MR_FALSE;
}
MR_Next
MR_trace_cmd_level(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
MR_Unsigned n;
MR_bool detailed;
MR_Level selected_level;
detailed = MR_FALSE;
if (! MR_trace_options_detailed(&detailed, &words, &word_count)) {
; /* the usage message has already been printed */
} else if (word_count == 2 &&
( MR_streq(words[1], "clique") || MR_streq(words[1], "clentry") ))
{
if (MR_find_clique_entry_mdb(event_info, MR_CLIQUE_ENTRY_FRAME,
&selected_level))
{
/* the error message has already been printed */
return KEEP_INTERACTING;
}
} else if (word_count == 2 && MR_streq(words[1], "clparent")) {
if (MR_find_clique_entry_mdb(event_info, MR_CLIQUE_ENTRY_PARENT_FRAME,
&selected_level))
{
/* the error message has already been printed */
return KEEP_INTERACTING;
}
} else if (word_count == 2 && MR_trace_is_natural_number(words[1], &n)) {
selected_level = n;
} else {
MR_trace_usage_cur_cmd();
return KEEP_INTERACTING;
}
MR_trace_set_level_and_report(selected_level, detailed,
MR_print_optionals);
return KEEP_INTERACTING;
}
static MR_bool
MR_proc_matches_name(const MR_Code *proc, const char *name)
{
#ifdef MR_NEED_ENTRY_LABEL_ARRAY
MR_Entry *entry;
entry = MR_prev_entry_by_addr(proc);
if (entry != NULL && entry->MR_entry_addr == proc
&& entry->MR_entry_name != NULL)
{
if (MR_streq(entry->MR_entry_name, name)) {
return MR_TRUE;
}
}
#endif // MR_NEED_ENTRY_LABEL_ARRAY
return MR_FALSE;
}
MR_Next
MR_trace_cmd_trust(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
MR_ProcSpec spec;
MR_MatchesInfo matches;
if (word_count == 2) {
spec.MR_proc_module = NULL;
spec.MR_proc_name = NULL;
spec.MR_proc_arity = -1;
spec.MR_proc_mode = -1;
spec.MR_proc_prefix = (MR_ProcPrefix) -1;
MR_register_all_modules_and_procs(MR_mdb_out, MR_TRUE);
/* First see if the argument is a module name */
spec.MR_proc_module = words[1];
matches = MR_search_for_matching_procedures(&spec);
if (matches.match_proc_next > 0) {
MR_decl_add_trusted_module(words[1]);
fprintf(MR_mdb_out, "Trusting module %s\n", words[1]);
} else if (MR_parse_proc_spec(words[1], &spec)) {
/* Check to see if the argument is a pred/func */
matches = MR_search_for_matching_procedures(&spec);
MR_filter_user_preds(&matches);
if (matches.match_proc_next == 0) {
fprintf(MR_mdb_err,
"mdb: there is no such module, predicate or function.\n");
} else if (matches.match_proc_next == 1) {
MR_decl_add_trusted_pred_or_func(matches.match_procs[0]);
fprintf(MR_mdb_out, "Trusting ");
MR_print_pred_id_and_nl(MR_mdb_out, matches.match_procs[0]);
} else {
MR_Unsigned i;
char buf[80];
char *line2;
fprintf(MR_mdb_out, "Ambiguous predicate or function"
" specification. The matches are:\n");
for (i = 0; i < matches.match_proc_next; i++) {
fprintf(MR_mdb_out, "%" MR_INTEGER_LENGTH_MODIFIER "u: ",
i);
MR_print_pred_id_and_nl(MR_mdb_out,
matches.match_procs[i]);
}
sprintf(buf, "\nWhich predicate or function "
"do you want to trust (0-%" MR_INTEGER_LENGTH_MODIFIER
"u or *)? ",
matches.match_proc_next - 1);
line2 = MR_trace_getline(buf, MR_mdb_in, MR_mdb_out);
if (line2 == NULL) {
/* This means the user input EOF. */
fprintf(MR_mdb_out, "none of them\n");
} else if (MR_streq(line2, "*")) {
for (i = 0; i < matches.match_proc_next; i++) {
MR_decl_add_trusted_pred_or_func(
matches.match_procs[i]);
fprintf(MR_mdb_out, "Trusting ");
MR_print_pred_id_and_nl(MR_mdb_out,
matches.match_procs[i]);
}
MR_free(line2);
} else if(MR_trace_is_natural_number(line2, &i)) {
if (0 <= i && i < matches.match_proc_next) {
MR_decl_add_trusted_pred_or_func(
matches.match_procs[i]);
fprintf(MR_mdb_out, "Trusting ");
MR_print_pred_id_and_nl(MR_mdb_out,
matches.match_procs[i]);
} else {
fprintf(MR_mdb_out, "no such match\n");
}
MR_free(line2);
} else {
fprintf(MR_mdb_out, "none of them\n");
MR_free(line2);
}
}
}
} else if (word_count == 3 &&
((MR_streq(words[1], "std") && MR_streq(words[2], "lib"))
|| (MR_streq(words[1], "standard") && MR_streq(words[2], "library"))))
{
MR_decl_trust_standard_library();
fprintf(MR_mdb_out, "Trusting the Mercury standard library\n");
} else {
MR_trace_usage_cur_cmd();
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_finish(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
const MR_ProcLayout *proc_layout;
const MR_LabelLayout *ancestor_layout;
MR_Unsigned depth;
MR_Unsigned stop_depth;
MR_Unsigned n;
MR_Level ancestor_level;
MR_TracePort port;
MR_Word *base_sp;
MR_Word *base_curfr;
MR_Unsigned reused_frames;
MR_Level actual_level;
const char *problem; // Not used.
depth = event_info->MR_call_depth;
cmd->MR_trace_strict = MR_TRUE;
cmd->MR_trace_print_level_specified = MR_FALSE;
cmd->MR_trace_print_level = MR_default_print_level;
MR_init_trace_check_integrity(cmd);
if (! MR_trace_options_movement_cmd(cmd, &words, &word_count)) {
// The usage message has already been printed.
;
return KEEP_INTERACTING;
} else if (word_count == 2 &&
( MR_streq(words[1], "entry") || MR_streq(words[1], "clentry")))
{
if (MR_find_clique_entry_mdb(event_info, MR_CLIQUE_ENTRY_FRAME,
&ancestor_level))
{
// The error message has already been printed.
return KEEP_INTERACTING;
}
} else if (word_count == 2 && MR_streq(words[1], "clparent"))
{
if (MR_find_clique_entry_mdb(event_info, MR_CLIQUE_ENTRY_PARENT_FRAME,
&ancestor_level))
{
// The error message has already been printed.
return KEEP_INTERACTING;
}
} else if (word_count == 2 && MR_trace_is_natural_number(words[1], &n)) {
ancestor_level = n;
} else if (word_count == 1) {
ancestor_level = 0;
} else {
MR_trace_usage_cur_cmd();
return KEEP_INTERACTING;
}
base_sp = MR_saved_sp(event_info->MR_saved_regs);
base_curfr = MR_saved_curfr(event_info->MR_saved_regs);
proc_layout = event_info->MR_event_sll->MR_sll_entry;
MR_trace_find_reused_frames(proc_layout, base_sp, reused_frames);
port = event_info->MR_trace_port;
stop_depth = depth - ancestor_level;
if (MR_port_is_final(port) && depth == stop_depth) {
MR_trace_do_noop();
} else if (MR_port_is_final(port) &&
depth - reused_frames <= stop_depth && stop_depth < depth)
{
MR_trace_do_noop_tail_rec();
} else {
ancestor_layout = MR_find_nth_ancestor(event_info->MR_event_sll,
ancestor_level, &base_sp, &base_curfr, &actual_level, &problem);
if (ancestor_layout == NULL) {
fflush(MR_mdb_out);
if (problem != NULL) {
fprintf(MR_mdb_err, "mdb: %s\n", problem);
} else {
fprintf(MR_mdb_err, "mdb: not that many ancestors.\n");
}
return KEEP_INTERACTING;
} else if (actual_level != ancestor_level) {
fflush(MR_mdb_out);
fprintf(MR_mdb_err, "%d %d\n",
(int) ancestor_level, (int) actual_level);
fprintf(MR_mdb_err,
"mdb: that stack frame has been reused, "
"will stop at finish of reusing call.\n");
} else {
cmd->MR_trace_cmd = MR_CMD_FINISH;
cmd->MR_trace_stop_depth = stop_depth;
return STOP_INTERACTING;
}
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_browse(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
MR_BrowseFormat format;
MR_bool xml;
MR_IoActionNum action;
MR_GoalBrowser goal_browser;
MR_Browser browser;
const char *problem;
if (! MR_trace_options_format(&format, &xml, &words, &word_count)) {
; /* the usage message has already been printed */
} else {
if (xml) {
goal_browser = MR_trace_browse_goal_xml;
browser = MR_trace_browse_xml;
} else {
goal_browser = MR_trace_browse_goal_internal;
browser = MR_trace_browse_internal;
}
if (word_count == 1) {
problem = MR_trace_browse_one_goal(MR_mdb_out, goal_browser,
MR_BROWSE_CALLER_BROWSE, format);
if (problem != NULL) {
fflush(MR_mdb_out);
fprintf(MR_mdb_err, "mdb: %s.\n", problem);
}
} else if (word_count == 2) {
if (MR_streq(words[1], "goal")) {
problem = MR_trace_browse_one_goal(MR_mdb_out, goal_browser,
MR_BROWSE_CALLER_BROWSE, format);
} else if (MR_streq(words[1], "exception")) {
problem = MR_trace_browse_exception(event_info, browser,
MR_BROWSE_CALLER_BROWSE, format);
} else if (MR_streq(words[1], "proc_body")) {
problem = MR_trace_browse_proc_body(event_info, browser,
MR_BROWSE_CALLER_BROWSE, format);
} else {
problem = MR_trace_parse_browse_one(MR_mdb_out, MR_FALSE,
words[1], browser, MR_BROWSE_CALLER_BROWSE, format,
MR_TRUE);
}
if (problem != NULL) {
fflush(MR_mdb_out);
fprintf(MR_mdb_err, "mdb: %s.\n", problem);
}
} else if (word_count == 3 &&
(MR_streq(words[1], "io") || MR_streq(words[1], "action"))
&& MR_trace_is_natural_number(words[2], &action))
{
problem = MR_trace_browse_action(MR_mdb_out, action, goal_browser,
MR_BROWSE_CALLER_BROWSE, format);
if (problem != NULL) {
fflush(MR_mdb_out);
fprintf(MR_mdb_err, "mdb: %s.\n", problem);
}
} else {
MR_trace_usage_cur_cmd();
}
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_print(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
MR_BrowseFormat format;
MR_bool xml;
const char *problem;
MR_Unsigned action;
MR_Unsigned lo_action;
MR_Unsigned hi_action;
static MR_bool have_next_io_action = MR_FALSE;
static MR_Unsigned next_io_action = 0;
if (! MR_trace_options_format(&format, &xml, &words, &word_count)) {
; /* the usage message has already been printed */
} else if (xml) {
/* the --xml option is not valid for print */
MR_trace_usage_cur_cmd();
} else if (word_count == 1) {
problem = MR_trace_browse_one_goal(MR_mdb_out,
MR_trace_browse_goal_internal, MR_BROWSE_CALLER_PRINT, format);
if (problem != NULL) {
fflush(MR_mdb_out);
fprintf(MR_mdb_err, "mdb: %s.\n", problem);
}
} else if (word_count == 2) {
if (MR_streq(words[1], "*")) {
problem = MR_trace_browse_all(MR_mdb_out,
MR_trace_browse_internal, format);
} else if (MR_streq(words[1], "goal")) {
problem = MR_trace_browse_one_goal(MR_mdb_out,
MR_trace_browse_goal_internal, MR_BROWSE_CALLER_PRINT, format);
} else if (MR_streq(words[1], "exception")) {
problem = MR_trace_browse_exception(event_info,
MR_trace_browse_internal, MR_BROWSE_CALLER_PRINT, format);
} else if (MR_streq(words[1], "proc_body")) {
problem = MR_trace_browse_proc_body(event_info,
MR_trace_browse_internal, MR_BROWSE_CALLER_PRINT, format);
} else if ((MR_streq(words[1], "io") || MR_streq(words[1], "action")))
{
MR_Unsigned num_printed_actions;
if (MR_io_tabling_phase == MR_IO_TABLING_BEFORE) {
fflush(MR_mdb_out);
fprintf(MR_mdb_err,
"mdb: I/O tabling has not yet started.\n");
return KEEP_INTERACTING;
}
if (MR_io_tabling_counter_hwm == 0) {
fflush(MR_mdb_out);
fprintf(MR_mdb_err,
"mdb: There are no tabled I/O actions yet.\n");
return KEEP_INTERACTING;
}
if (have_next_io_action && (!
(MR_io_tabling_start <= next_io_action
&& next_io_action < MR_io_tabling_counter_hwm)))
{
have_next_io_action = MR_FALSE;
}
if (have_next_io_action) {
lo_action = next_io_action;
} else {
lo_action = MR_io_tabling_start;
}
hi_action = lo_action + MR_MAX_NUM_IO_ACTIONS_TO_PRINT;
if (hi_action >= MR_io_tabling_counter_hwm) {
hi_action = MR_io_tabling_counter_hwm - 1;
}
num_printed_actions = hi_action - lo_action + 1;
if (num_printed_actions <= 0) {
fprintf(MR_mdb_out, "There are no I/O actions to print\n");
have_next_io_action = MR_FALSE;
} else {
for (action = lo_action; action <= hi_action; action++) {
fprintf(MR_mdb_out,
"action %" MR_INTEGER_LENGTH_MODIFIER "u: ", action);
problem = MR_trace_browse_action(MR_mdb_out, action,
MR_trace_browse_goal_internal,
MR_BROWSE_CALLER_PRINT, format);
if (problem != NULL) {
fflush(MR_mdb_out);
fprintf(MR_mdb_err, "mdb: %s.\n", problem);
return KEEP_INTERACTING;
}
}
if (hi_action == MR_io_tabling_counter_hwm - 1) {
fprintf(MR_mdb_out,
"there are no more actions (yet)\n");
} else {
fprintf(MR_mdb_out,
"there are more actions, up to action "
"%" MR_INTEGER_LENGTH_MODIFIER "u\n",
MR_io_tabling_counter_hwm - 1);
}
next_io_action = hi_action + 1;
have_next_io_action = MR_TRUE;
}
} else {
problem = MR_trace_parse_browse_one(MR_mdb_out, MR_TRUE, words[1],
MR_trace_browse_internal, MR_BROWSE_CALLER_PRINT, format,
MR_FALSE);
}
if (problem != NULL) {
fflush(MR_mdb_out);
fprintf(MR_mdb_err, "mdb: %s.\n", problem);
}
} else if (word_count == 3 &&
(MR_streq(words[1], "io") || MR_streq(words[1], "action")))
{
if (MR_io_tabling_phase == MR_IO_TABLING_BEFORE) {
fflush(MR_mdb_out);
fprintf(MR_mdb_err,
"mdb: I/O tabling has not yet started.\n");
return KEEP_INTERACTING;
}
if (MR_io_tabling_counter_hwm == 0) {
fflush(MR_mdb_out);
fprintf(MR_mdb_err,
"mdb: There are no tabled I/O actions yet.\n");
return KEEP_INTERACTING;
}
if (MR_streq(words[2], "limits")) {
fprintf(MR_mdb_out,
"I/O tabling has recorded actions "
"%" MR_INTEGER_LENGTH_MODIFIER "u to "
"%" MR_INTEGER_LENGTH_MODIFIER "u.\n",
MR_io_tabling_start, MR_io_tabling_counter_hwm - 1);
fflush(MR_mdb_out);
} else if (MR_trace_is_natural_number(words[2], &action)) {
problem = MR_trace_browse_action(MR_mdb_out, action,
MR_trace_browse_goal_internal,
MR_BROWSE_CALLER_PRINT, format);
if (problem != NULL) {
fflush(MR_mdb_out);
fprintf(MR_mdb_err, "mdb: %s.\n", problem);
have_next_io_action = MR_FALSE;
}
next_io_action = action + 1;
have_next_io_action = MR_TRUE;
} else if (MR_trace_is_natural_number_pair(words[2],
&lo_action, &hi_action))
{
if (lo_action >= hi_action) {
/* swap lo_action and hi_action */
MR_Unsigned tmp;
tmp = lo_action;
lo_action = hi_action;
hi_action = tmp;
}
if (! (MR_io_tabling_start <= lo_action
&& hi_action < MR_io_tabling_counter_hwm))
{
fflush(MR_mdb_out);
fprintf(MR_mdb_err,
"I/O tabling has only recorded actions "
"%" MR_INTEGER_LENGTH_MODIFIER "u to "
"%" MR_INTEGER_LENGTH_MODIFIER "u.\n",
MR_io_tabling_start, MR_io_tabling_counter_hwm - 1);
have_next_io_action = MR_FALSE;
return KEEP_INTERACTING;
}
for (action = lo_action; action <= hi_action; action++) {
fprintf(MR_mdb_out,
"action %" MR_INTEGER_LENGTH_MODIFIER "u: ", action);
problem = MR_trace_browse_action(MR_mdb_out, action,
MR_trace_browse_goal_internal,
MR_BROWSE_CALLER_PRINT, format);
if (problem != NULL) {
fflush(MR_mdb_out);
fprintf(MR_mdb_err, "mdb: %s.\n", problem);
return KEEP_INTERACTING;
}
}
next_io_action = hi_action + 1;
have_next_io_action = MR_TRUE;
} else {
MR_trace_usage_cur_cmd();
}
} else {
MR_trace_usage_cur_cmd();
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_table_io(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
if (word_count == 1) {
if (! MR_io_tabling_allowed) {
fprintf(MR_mdb_err,
"This executable wasn't prepared for I/O tabling.\n");
return KEEP_INTERACTING;
}
if (MR_io_tabling_phase == MR_IO_TABLING_BEFORE) {
fprintf(MR_mdb_out, "I/O tabling has not yet started.\n");
} else if (MR_io_tabling_phase == MR_IO_TABLING_DURING) {
fprintf(MR_mdb_out, "I/O tabling has started.\n");
} else if (MR_io_tabling_phase == MR_IO_TABLING_AFTER) {
fprintf(MR_mdb_out, "I/O tabling has stopped.\n");
} else {
MR_fatal_error("I/O tabling in impossible phase.\n");
}
} else if (word_count == 2 &&
(MR_streq(words[1], "start") || MR_streq(words[1], "begin")))
{
if (! MR_io_tabling_allowed) {
fprintf(MR_mdb_err,
"This executable wasn't prepared for I/O tabling.\n");
return KEEP_INTERACTING;
}
if (MR_io_tabling_phase == MR_IO_TABLING_BEFORE) {
MR_io_tabling_phase = MR_IO_TABLING_DURING;
MR_io_tabling_start = MR_io_tabling_counter;
MR_io_tabling_end = MR_IO_ACTION_MAX;
MR_io_tabling_start_event_num = event_info->MR_event_number;
#ifdef MR_DEBUG_RETRY
MR_io_tabling_debug = MR_TRUE;
#endif
fprintf(MR_mdb_out, "I/O tabling started.\n");
} else if (MR_io_tabling_phase == MR_IO_TABLING_DURING) {
fprintf(MR_mdb_out, "I/O tabling has already started.\n");
} else if (MR_io_tabling_phase == MR_IO_TABLING_AFTER) {
fprintf(MR_mdb_out, "I/O tabling has already stopped.\n");
} else {
MR_fatal_error("I/O tabling in impossible phase.\n");
}
} else if (word_count == 2 &&
(MR_streq(words[1], "stop") || MR_streq(words[1], "end")))
{
if (! MR_io_tabling_allowed) {
fprintf(MR_mdb_err,
"This executable wasn't prepared for I/O tabling.\n");
return KEEP_INTERACTING;
}
if (MR_io_tabling_phase == MR_IO_TABLING_BEFORE) {
fprintf(MR_mdb_out, "I/O tabling has not yet started.\n");
} else if (MR_io_tabling_phase == MR_IO_TABLING_DURING) {
MR_io_tabling_phase = MR_IO_TABLING_AFTER;
MR_io_tabling_end = MR_io_tabling_counter_hwm;
MR_io_tabling_stop_event_num = event_info->MR_event_number;
fprintf(MR_mdb_out, "I/O tabling stopped.\n");
} else if (MR_io_tabling_phase == MR_IO_TABLING_AFTER) {
fprintf(MR_mdb_out, "I/O tabling has already stopped.\n");
} else {
MR_fatal_error("I/O tabling in impossible phase.\n");
}
} else if (word_count == 2 && MR_streq(words[1], "stats")) {
if (! MR_io_tabling_allowed) {
fprintf(MR_mdb_err,
"This executable wasn't prepared for I/O tabling.\n");
return KEEP_INTERACTING;
}
fprintf(MR_mdb_out, "phase = %d\n", MR_io_tabling_phase);
MR_print_unsigned_var(MR_mdb_out, "counter", MR_io_tabling_counter);
MR_print_unsigned_var(MR_mdb_out, "hwm", MR_io_tabling_counter_hwm);
MR_print_unsigned_var(MR_mdb_out, "start", MR_io_tabling_start);
MR_print_unsigned_var(MR_mdb_out, "end", MR_io_tabling_end);
} else if (word_count == 2 && MR_streq(words[1], "allow")) {
/*
** The "table_io allow" command allows the programmer to give
** the command "table_io start" even in grades in which there
** is no guarantee that all I/O primitives are tabled. It is
** for developers only, because if it is used on programs in
** which some but not all I/O primitives are tabled, the
** results of turning on I/O tabling can be weird.
*/
MR_io_tabling_allowed = MR_TRUE;
} else {
MR_trace_usage_cur_cmd();
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_retry(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
MR_Level n;
MR_Level ancestor_level;
MR_RetryAcrossIo across_io;
const char *problem;
MR_RetryResult result;
MR_bool assume_all_io_is_tabled;
MR_bool unsafe_retry;
ancestor_level = 0;
across_io = MR_RETRY_IO_INTERACTIVE;
assume_all_io_is_tabled = MR_FALSE;
if (! MR_trace_options_retry(&across_io, &assume_all_io_is_tabled,
&words, &word_count))
{
; /* the usage message has already been printed */
} else if (word_count == 2 &&
( MR_streq(words[1], "clique") || MR_streq(words[1], "clentry")))
{
if (MR_find_clique_entry_mdb(event_info, MR_CLIQUE_ENTRY_FRAME,
&ancestor_level))
{
/* the error message has already been printed */
return KEEP_INTERACTING;
}
} else if (word_count == 2 && MR_streq(words[1], "clparent")) {
if (MR_find_clique_entry_mdb(event_info, MR_CLIQUE_ENTRY_PARENT_FRAME,
&ancestor_level))
{
/* the error message has already been printed */
return KEEP_INTERACTING;
}
} else if (word_count == 2 && MR_trace_is_natural_number(words[1], &n)) {
ancestor_level = n;
} else if (word_count == 1) {
ancestor_level = 0;
} else {
MR_trace_usage_cur_cmd();
return KEEP_INTERACTING;
}
if (ancestor_level == 0 && MR_port_is_entry(event_info->MR_trace_port)) {
MR_trace_do_noop();
return KEEP_INTERACTING;
}
result = MR_trace_retry(event_info, ancestor_level,
across_io, assume_all_io_is_tabled, MR_UNTABLED_IO_RETRY_MESSAGE,
&unsafe_retry, &problem, MR_mdb_in, MR_mdb_out, jumpaddr);
switch (result) {
case MR_RETRY_OK_DIRECT:
cmd->MR_trace_cmd = MR_CMD_GOTO;
cmd->MR_trace_stop_event = MR_trace_event_number + 1;
cmd->MR_trace_strict = MR_FALSE;
cmd->MR_trace_print_level = MR_default_print_level;
return STOP_INTERACTING;
case MR_RETRY_OK_FINISH_FIRST:
cmd->MR_trace_cmd = MR_CMD_FINISH;
cmd->MR_trace_stop_depth = event_info->MR_call_depth - ancestor_level;
cmd->MR_trace_strict = MR_TRUE;
cmd->MR_trace_print_level = MR_PRINT_LEVEL_NONE;
/* Arrange to retry the call once it is finished. */
/* XXX we should use the same options as the original retry */
MR_insert_command_line_at_head("retry -o");
return STOP_INTERACTING;
case MR_RETRY_OK_FAIL_FIRST:
cmd->MR_trace_cmd = MR_CMD_FAIL;
cmd->MR_trace_stop_depth = event_info->MR_call_depth - ancestor_level;
cmd->MR_trace_strict = MR_TRUE;
cmd->MR_trace_print_level = MR_PRINT_LEVEL_NONE;
/* Arrange to retry the call once it is finished. */
/* XXX we should use the same options as the original retry */
MR_insert_command_line_at_head("retry -o");
return STOP_INTERACTING;
case MR_RETRY_ERROR:
fflush(MR_mdb_out);
fprintf(MR_mdb_err, "%s\n", problem);
return KEEP_INTERACTING;
}
MR_fatal_error("unrecognized retry result");
}
MR_bool
MR_event_matches_spy_point(const MR_LabelLayout *layout,
MR_TracePort port, MR_SpyAction *action_ptr,
MR_SpyPrintList *print_list_ptr)
{
int slot;
MR_bool enabled;
MR_SpyPoint *point;
MR_SpyAction action;
MR_SpyPrintList print_list;
const MR_LabelLayout *parent;
const MR_UserEvent *user_event;
const MR_UserEventSpec *user_event_spec;
const char *user_event_set;
const char *user_event_name;
const char *problem;
MR_Word *base_sp;
MR_Word *base_curfr;
MR_Level actual_level;
enabled = MR_FALSE;
action = MR_SPY_PRINT;
print_list = NULL;
if (MR_spied_label_next > 0) {
slot = MR_search_spy_table_for_label(layout);
if (slot >= 0) {
point = MR_spy_points[MR_spied_labels[slot].MR_sl_point_num];
if (point->MR_spy_when != MR_SPY_LINENO) {
MR_fatal_error("non-lineno spy point in spied labels array");
}
MR_update_enabled_action(point, layout, port,
&enabled, &action, &print_list);
}
if (MR_port_is_interface(port)) {
MR_restore_transient_registers();
base_sp = MR_sp;
base_curfr = MR_curfr;
parent = MR_find_nth_ancestor(layout, 1, &base_sp, &base_curfr,
&actual_level, &problem);
if (parent != NULL && actual_level == 1 &&
0 <= (slot = MR_search_spy_table_for_label(parent)))
{
point = MR_spy_points[MR_spied_labels[slot].MR_sl_point_num];
if (point->MR_spy_when != MR_SPY_LINENO) {
MR_fatal_error("non-lineno spy point in "
"spied labels array");
}
MR_update_enabled_action(point, layout, port,
&enabled, &action, &print_list);
}
}
}
user_event = layout->MR_sll_user_event;
if (user_event != NULL) {
user_event_spec = &MR_user_event_spec(layout);
user_event_name = user_event_spec->MR_ues_event_name;
user_event_set = MR_user_event_set_name(layout);
/*
** Check for breakpoints that specify an event name, and possibly
** and event set.
*/
slot = MR_search_spy_table_for_user_event_name(user_event_name);
if (slot >= 0) {
for (point = MR_spied_user_events[slot].MR_sue_points;
point != NULL; point = point->MR_spy_next)
{
if (point->MR_spy_when != MR_SPY_USER_EVENT) {
MR_fatal_error("non-named-user-event spy point "
"in named user event array");
}
if (point->MR_spy_user_event_set == NULL ||
MR_streq(user_event_set, point->MR_spy_user_event_set))
{
MR_update_enabled_action(point, layout, port,
&enabled, &action, &print_list);
}
}
}
/*
** Check for breakpoints that specify just an event set.
*/
slot = MR_search_spy_table_for_user_event_set(user_event_set);
if (slot >= 0) {
for (point = MR_spied_user_event_sets[slot].MR_sues_points;
point != NULL; point = point->MR_spy_next)
{
if (point->MR_spy_when != MR_SPY_USER_EVENT_SET) {
MR_fatal_error("non-named-user-event spy point "
"in named user event array");
}
MR_update_enabled_action(point, layout, port,
&enabled, &action, &print_list);
}
}
/*
** Check for breakpoints that specify neither event name nor event set.
*/
for (point = MR_spied_universal_user_events; point != NULL;
point = point->MR_spy_next)
{
if (point->MR_spy_when != MR_SPY_USER_EVENT_SET) {
MR_fatal_error("non-unnamed-user-event spy point "
"in unnamed user event list");
}
MR_update_enabled_action(point, layout, port,
&enabled, &action, &print_list);
}
}
slot = MR_search_spy_table_for_proc(layout->MR_sll_entry);
if (slot >= 0) {
for (point = MR_spied_procs[slot].MR_sp_points; point != NULL;
point = point->MR_spy_next)
{
switch (point->MR_spy_when) {
case MR_SPY_ALL:
MR_update_enabled_action(point, layout, port,
&enabled, &action, &print_list);
break;
case MR_SPY_ENTRY:
if (MR_port_is_entry(port)) {
MR_update_enabled_action(point, layout, port,
&enabled, &action, &print_list);
} else {
continue;
}
break;
case MR_SPY_INTERFACE:
if (MR_port_is_interface(port)) {
MR_update_enabled_action(point, layout, port,
&enabled, &action, &print_list);
} else {
continue;
}
break;
case MR_SPY_SPECIFIC:
if (layout == point->MR_spy_label) {
MR_update_enabled_action(point, layout, port,
&enabled, &action, &print_list);
} else {
continue;
}
break;
case MR_SPY_LINENO:
MR_fatal_error("lineno spy point in spied procs array");
break;
case MR_SPY_USER_EVENT:
MR_fatal_error("user_event spy point "
"in spied procs array");
break;
case MR_SPY_USER_EVENT_SET:
MR_fatal_error("user_event_set spy point "
"in spied procs array");
break;
default:
MR_fatal_error("bad spy point when in "
"MR_event_matches_spy_point");
}
}
}
if (enabled) {
*action_ptr = action;
*print_list_ptr = print_list;
return MR_TRUE;
} else {
return MR_FALSE;
}
}
