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mercury/trace/mercury_trace_cmd_developer.c
Zoltan Somogyi d27185c6d2 Fix a minor bug: don't go on to try to print statistics if users invoke 
Estimated hours taken: 1
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trace/mercury_trace_cmd_developer.c:
	Fix a minor bug: don't go on to try to print statistics if users invoke
	the "stats" command without saying *which* statistics they want, since
	it just leads to the printing of the same error message.

trace/mercury_trace_cmd_developer.c:
	Fix a core-dump level bug: since the pointer to the table of variable
	names in a procedure may be NULL if the procedure has no named Mercury
	variables (which can happen for procedures defined in foreign
	languages), test it for NULL before deferencing it.
2011-09-21 08:46:27 +00:00

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/*
** vim: ts=4 sw=4 expandtab
*/
/*
** Copyright (C) 1998-2008, 2011 The University of Melbourne.
** This file may only be copied under the terms of the GNU Library General
** Public License - see the file COPYING.LIB in the Mercury distribution.
*/
/*
** This module implements the mdb commands in the "developer" category.
**
** The structure of these files is:
**
** - all the #includes
** - local macros and declarations of local static functions
** - one function for each command in the category
** - any auxiliary functions
** - any command argument strings
** - option processing functions.
*/
#include "mercury_std.h"
#include "mercury_getopt.h"
#include "mercury_types.h"
#include "mercury_tabling.h"
#include "mercury_trace_base.h"
#include "mercury_regs.h"
#include "mercury_trace_internal.h"
#include "mercury_trace_cmds.h"
#include "mercury_trace_cmd_developer.h"
#include "mercury_trace_cmd_parameter.h"
#include "mercury_trace_tables.h"
#include "mercury_trace_util.h"
#include <stdio.h>
/****************************************************************************/
static void MR_trace_cmd_nondet_stack_2(MR_EventInfo *event_info,
MR_bool detailed, MR_FrameLimit frame_limit,
MR_SpecLineLimit line_limit);
static const MR_ProcLayout
*MR_find_single_matching_proc(MR_ProcSpec *spec,
MR_bool verbose);
/*
** The following data structures describe the information we have about the
** input arguments of tabled procedures. We use them to decode the call tables
** of such procedures.
**
** We use one MR_CallTableArg structure for each input argument.
**
** The step field specifies what data structure the tabling system uses to
** implement the trie nodes at the level of the call table corresponding to
** the relevant argument. At the moment, we support only four values of this
** field, MR_TABLE_STEP_INT, MR_TABLE_STEP_FLOAT, MR_TABLE_STEP_STRING and
** MR_TABLE_STEP_PROMISE_IMPLIED. The first three of these implicitly select
** the corresponding alternative in the arg_values union; the last one
** indicates the absence of a step.
**
** The start_node field specifies the start node of the relevant trie. For the
** first input argument, this will be the tabling pointer variable for the
** given procedure. For later input arguments, it will be the trie node you
** reach after following the current values of the previous arguments through
** the call table.
**
** The MR_{Int,Float,String}TableArgValues structs have the same fields and
** the same meanings, differing only in the types of the values they store.
** Each struct is used for one of two things.
**
** 1. To describe a value supplied by the user on the mdb command line.
** In this case, the only field that matters is the cur_value field.
**
** 2. To describe the set of values you can find in a trie node, the one given
** by the start_node field, and to specify which is the current one.
** In this case, all the fields matter.
**
** The code that manipulates these structures distinguishes between the two
** uses based on argument number.
**
** The values array is managed with the macros in mercury_array_macros.h,
** so its size is given by the value_next field. The cur_index field gives the
** index of the current value, while the cur_value field gives the current
** value itself. (The contents of the cur_value field can be deduced from the
** contents of the other fields with use 2, but not with use 1.)
**
** The valid field in the MR_CallTableArg structure gives the validity
** of the values subfield of its arg_values field; if it is false, then the
** array is logically considered empty.
*/
typedef struct {
MR_Integer *MR_ctai_values;
int MR_ctai_value_next;
int MR_ctai_cur_index;
MR_Integer MR_ctai_cur_value;
} MR_IntTableArgValues;
typedef struct {
MR_Float *MR_ctaf_values;
int MR_ctaf_value_next;
int MR_ctaf_cur_index;
MR_Float MR_ctaf_cur_value;
} MR_FloatTableArgValues;
typedef struct {
MR_ConstString *MR_ctas_values;
int MR_ctas_value_next;
int MR_ctas_cur_index;
MR_ConstString MR_ctas_cur_value;
} MR_StringTableArgValues;
typedef union {
MR_IntTableArgValues MR_cta_values_int;
MR_FloatTableArgValues MR_cta_values_float;
MR_StringTableArgValues MR_cta_values_string;
} MR_TableArgValues;
typedef struct {
MR_TableTrieStep MR_cta_step;
int MR_cta_unfiltered_arg_num;
MR_TrieNode MR_cta_start_node;
MR_bool MR_cta_valid;
MR_TableArgValues MR_cta_arg_values;
} MR_CallTableArg;
#define MR_cta_int_values MR_cta_arg_values.MR_cta_values_int.\
MR_ctai_values
#define MR_cta_int_value_next MR_cta_arg_values.MR_cta_values_int.\
MR_ctai_value_next
#define MR_cta_int_cur_index MR_cta_arg_values.MR_cta_values_int.\
MR_ctai_cur_index
#define MR_cta_int_cur_value MR_cta_arg_values.MR_cta_values_int.\
MR_ctai_cur_value
#define MR_cta_float_values MR_cta_arg_values.MR_cta_values_float.\
MR_ctaf_values
#define MR_cta_float_value_next MR_cta_arg_values.MR_cta_values_float.\
MR_ctaf_value_next
#define MR_cta_float_cur_index MR_cta_arg_values.MR_cta_values_float.\
MR_ctaf_cur_index
#define MR_cta_float_cur_value MR_cta_arg_values.MR_cta_values_float.\
MR_ctaf_cur_value
#define MR_cta_string_values MR_cta_arg_values.MR_cta_values_string.\
MR_ctas_values
#define MR_cta_string_value_next MR_cta_arg_values.MR_cta_values_string.\
MR_ctas_value_next
#define MR_cta_string_cur_index MR_cta_arg_values.MR_cta_values_string.\
MR_ctas_cur_index
#define MR_cta_string_cur_value MR_cta_arg_values.MR_cta_values_string.\
MR_ctas_cur_value
/*
** These functions fill in the data structure describing one input argument
** of a tabled procedure with a constant value given on the mdb command line.
** They return true if they succeed, and false if they fail (e.g. because the
** string given on the mdb command line does not describe a value of the
** required type).
*/
static MR_bool MR_trace_fill_in_int_table_arg_slot(
MR_TrieNode *table_cur_ptr,
int arg_num, MR_ConstString given_arg,
MR_CallTableArg *call_table_arg_ptr);
static MR_bool MR_trace_fill_in_float_table_arg_slot(
MR_TrieNode *table_cur_ptr,
int arg_num, MR_ConstString given_arg,
MR_CallTableArg *call_table_arg_ptr);
static MR_bool MR_trace_fill_in_string_table_arg_slot(
MR_TrieNode *table_cur_ptr,
int arg_num, MR_ConstString given_arg,
MR_CallTableArg *call_table_arg_ptr);
/*
** These functions fill in the data structure describing one input argument
** of a tabled procedure with the next value taken from the given trie node.
** They return true if there are no more values in the trie node, and false
** otherwise.
*/
static MR_bool MR_update_int_table_arg_slot(MR_TrieNode *table_cur_ptr,
MR_CallTableArg *call_table_arg_ptr);
static MR_bool MR_update_float_table_arg_slot(MR_TrieNode *table_cur_ptr,
MR_CallTableArg *call_table_arg_ptr);
static MR_bool MR_update_string_table_arg_slot(MR_TrieNode *table_cur_ptr,
MR_CallTableArg *call_table_arg_ptr);
/* Prints the given subgoal of the given procedure to MR_mdb_out. */
static void MR_trace_cmd_table_print_tip(const MR_ProcLayout *proc,
int filtered_num_inputs,
MR_CallTableArg *call_table_args, MR_TrieNode table);
/* Prints the given subgoal of the given procedure to MR_mdb_out. */
static void MR_trace_print_subgoal(const MR_ProcLayout *proc,
MR_Subgoal *subgoal);
static void MR_trace_print_subgoal_debug(const MR_ProcLayout *proc,
MR_SubgoalDebug *subgoal_debug);
/* Prints the given generator of the given procedure to MR_mdb_out. */
static void MR_trace_print_generator(const MR_ProcLayout *proc,
MR_Generator *generator);
static void MR_trace_print_generator_debug(const MR_ProcLayout *proc,
MR_GenDebug *generator_debug);
/* Prints the given consumer of the given procedure to MR_mdb_out. */
static void MR_trace_print_consumer(const MR_ProcLayout *proc,
MR_Consumer *consumer);
static void MR_trace_print_consumer_debug(const MR_ProcLayout *proc,
MR_ConsumerDebug *consumer_debug);
/* Prints the requested information inside the given MR_TypeCtorInfo. */
static void MR_print_type_ctor_info(FILE *fp,
MR_TypeCtorInfo type_ctor_info,
MR_bool print_rep, MR_bool print_functors);
/* Prints the requested information inside the given MR_TypeClassDeclInfo. */
static void MR_print_class_decl_info(FILE *fp,
MR_TypeClassDeclInfo *type_class_decl_info,
MR_bool print_methods, MR_bool print_instances);
/* Print the given pseudo-typeinfo. */
static void MR_print_pseudo_type_info(FILE *fp,
MR_PseudoTypeInfo pseudo);
/****************************************************************************/
static MR_bool MR_trace_options_nondet_stack(MR_bool *detailed,
MR_FrameLimit *frame_limit, char ***words,
int *word_count);
static MR_bool MR_trace_options_stats(char **filename, char ***words,
int *word_count);
static MR_bool MR_trace_options_type_ctor(MR_bool *print_rep,
MR_bool *print_functors, char ***words,
int *word_count);
static MR_bool MR_trace_options_class_decl(MR_bool *print_methods,
MR_bool *print_instances, char ***words,
int *word_count);
static MR_bool MR_trace_options_all_procedures(MR_bool *separate,
MR_bool *uci, char **module, char ***words,
int *word_count);
static MR_bool MR_trace_options_ambiguity(const char **outfile,
MR_bool *print_procs, MR_bool *print_types,
MR_bool *print_functors, char ***words,
int *word_count);
/****************************************************************************/
MR_Next
MR_trace_cmd_var_details(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
int n;
if (word_count == 1) {
const char *problem;
problem = MR_trace_list_var_details(MR_mdb_out);
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_term_size(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
int n;
if (word_count == 2) {
const char *problem;
if (MR_streq(words[1], "*")) {
problem = MR_trace_print_size_all(MR_mdb_out);
} else {
problem = MR_trace_print_size_one(MR_mdb_out, words[1]);
}
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_flag(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
const char *name;
MR_bool *flagptr;
int i;
MR_bool found;
const char *set_word;
/* Set this to NULL to avoid uninitialization warnings. */
flagptr = NULL;
if (word_count == 1) {
for (i = 0; i < MR_MAXFLAG; i++) {
/*
** The true values of the debugging flags are stored in
** MR_saved_debug_state inside the call tree of MR_trace_event.
*/
flagptr = &MR_saved_debug_state.MR_sds_debugflags[
MR_debug_flag_info[i].MR_debug_flag_index];
name = MR_debug_flag_info[i].MR_debug_flag_name;
if (*flagptr) {
fprintf(MR_mdb_out, "Flag %s is set.\n", name);
} else {
fprintf(MR_mdb_out, "Flag %s is clear.\n", name);
}
}
return KEEP_INTERACTING;
} else if (word_count == 2) {
name = words[1];
set_word = NULL;
} else if (word_count == 3) {
name = words[1];
set_word = words[2];
} else {
MR_trace_usage_cur_cmd();
return KEEP_INTERACTING;
}
found = MR_FALSE;
for (i = 0; i < MR_MAXFLAG; i++) {
if (MR_streq(MR_debug_flag_info[i].MR_debug_flag_name, name)) {
/*
** The true values of the debugging flags are stored in
** MR_saved_debug_state inside the call tree of MR_trace_event.
*/
flagptr = &MR_saved_debug_state.MR_sds_debugflags[
MR_debug_flag_info[i].MR_debug_flag_index];
found = MR_TRUE;
break;
}
}
if (!found) {
fprintf(MR_mdb_out, "There is no flag named %s.\n", name);
return KEEP_INTERACTING;
}
if (set_word != NULL) {
if (MR_streq(set_word, "on")) {
*flagptr = MR_TRUE;
fprintf(MR_mdb_out, "Flag %s is now set.\n", name);
} else if (MR_streq(set_word, "off")) {
*flagptr = MR_FALSE;
fprintf(MR_mdb_out, "Flag %s is now clear.\n", name);
} else {
MR_trace_usage_cur_cmd();
}
} else {
if (*flagptr) {
fprintf(MR_mdb_out, "Flag %s is set.\n", name);
} else {
fprintf(MR_mdb_out, "Flag %s is clear.\n", name);
}
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_subgoal(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
#ifdef MR_USE_MINIMAL_MODEL_STACK_COPY
MR_SubgoalDebug *subgoal_debug;
MR_Subgoal *subgoal;
int n;
if (word_count == 2 && MR_trace_is_natural_number(words[1], &n)) {
MR_trace_init_modules();
subgoal_debug = MR_lookup_subgoal_debug_num(n);
if (subgoal_debug == NULL) {
fprintf(MR_mdb_out, "no such subgoal\n");
} else {
MR_trace_print_subgoal_debug(NULL, subgoal_debug);
}
} else {
MR_trace_usage_cur_cmd();
}
#else /* MR_USE_MINIMAL_MODEL_STACK_COPY */
fprintf(MR_mdb_out, "mdb: the `subgoal' command is available "
"only in stack copy minimal model tabling grades.\n");
#endif /* MR_USE_MINIMAL_MODEL_STACK_COPY */
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_consumer(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
#ifdef MR_USE_MINIMAL_MODEL_STACK_COPY
MR_ConsumerDebug *consumer_debug;
MR_Consumer *consumer;
int n;
if (word_count == 2 && MR_trace_is_natural_number(words[1], &n)) {
MR_trace_init_modules();
consumer_debug = MR_lookup_consumer_debug_num(n);
if (consumer_debug == NULL) {
fprintf(MR_mdb_out, "no such consumer\n");
} else {
MR_trace_print_consumer_debug(NULL, consumer_debug);
}
} else {
MR_trace_usage_cur_cmd();
}
#else /* MR_USE_MINIMAL_MODEL_STACK_COPY */
fprintf(MR_mdb_out, "mdb: the `consumer' command is available "
"only in stack copy minimal model tabling grades.\n");
#endif /* MR_USE_MINIMAL_MODEL_STACK_COPY */
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_gen_stack(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
#ifdef MR_USE_MINIMAL_MODEL_STACK_COPY
if (word_count == 1) {
MR_bool saved_tabledebug;
MR_trace_init_modules();
saved_tabledebug = MR_tabledebug;
MR_tabledebug = MR_TRUE;
MR_print_gen_stack(MR_mdb_out);
MR_tabledebug = saved_tabledebug;
} else {
MR_trace_usage_cur_cmd();
}
#else /* MR_USE_MINIMAL_MODEL_STACK_COPY */
fprintf(MR_mdb_out, "mdb: the `gen_stack' command is available "
"only in stack copy minimal model tabling grades.\n");
#endif /* MR_USE_MINIMAL_MODEL_STACK_COPY */
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_cut_stack(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
#ifdef MR_USE_MINIMAL_MODEL_STACK_COPY
if (word_count == 1) {
MR_bool saved_tabledebug;
MR_trace_init_modules();
saved_tabledebug = MR_tabledebug;
MR_tabledebug = MR_TRUE;
MR_print_cut_stack(MR_mdb_out);
MR_tabledebug = saved_tabledebug;
} else {
MR_trace_usage_cur_cmd();
}
#else /* MR_USE_MINIMAL_MODEL_STACK_COPY */
fprintf(MR_mdb_out, "mdb: the `cut_stack' command is available "
"only in stack copy minimal model tabling grades.\n");
#endif /* MR_USE_MINIMAL_MODEL_STACK_COPY */
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_pneg_stack(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
#ifdef MR_USE_MINIMAL_MODEL_STACK_COPY
if (word_count == 1) {
MR_bool saved_tabledebug;
MR_trace_init_modules();
saved_tabledebug = MR_tabledebug;
MR_tabledebug = MR_TRUE;
MR_print_pneg_stack(MR_mdb_out);
MR_tabledebug = saved_tabledebug;
} else {
MR_trace_usage_cur_cmd();
}
#else /* MR_USE_MINIMAL_MODEL_STACK_COPY */
fprintf(MR_mdb_out, "mdb: the `pneg_stack' command is available "
"only in stack copy minimal model tabling grades.\n");
#endif /* MR_USE_MINIMAL_MODEL_STACK_COPY */
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_mm_stacks(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
#ifdef MR_USE_MINIMAL_MODEL_STACK_COPY
if (word_count == 1) {
MR_bool saved_tabledebug;
MR_trace_init_modules();
saved_tabledebug = MR_tabledebug;
MR_tabledebug = MR_TRUE;
MR_print_gen_stack(MR_mdb_out);
fprintf(MR_mdb_out, "\n");
MR_print_cut_stack(MR_mdb_out);
fprintf(MR_mdb_out, "\n");
MR_print_pneg_stack(MR_mdb_out);
MR_tabledebug = saved_tabledebug;
} else {
MR_trace_usage_cur_cmd();
}
#else /* MR_USE_MINIMAL_MODEL_STACK_COPY */
fprintf(MR_mdb_out, "mdb: the `pneg_stack' command is available "
"only in stack copy minimal model tabling grades.\n");
#endif /* MR_USE_MINIMAL_MODEL_STACK_COPY */
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_nondet_stack(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
MR_bool detailed;
MR_FrameLimit frame_limit = 0;
int line_limit = MR_stack_default_line_limit;
MR_SpecLineLimit spec_line_limit;
detailed = MR_FALSE;
if (! MR_trace_options_nondet_stack(&detailed, &frame_limit,
&words, &word_count))
{
; /* the usage message has already been printed */
} else if (word_count == 1) {
MR_trace_cmd_nondet_stack_2(event_info, detailed, frame_limit,
line_limit);
} else if (word_count == 2 &&
MR_trace_is_natural_number(words[1], &spec_line_limit))
{
MR_trace_cmd_nondet_stack_2(event_info, detailed, frame_limit,
spec_line_limit);
} else {
MR_trace_usage_cur_cmd();
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_stack_regs(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
MR_Word *saved_regs;
saved_regs = event_info->MR_saved_regs;
if (word_count == 1) {
MR_print_stack_regs(MR_mdb_out, saved_regs);
} else {
MR_trace_usage_cur_cmd();
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_all_regs(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
MR_Word *saved_regs;
saved_regs = event_info->MR_saved_regs;
if (word_count == 1) {
MR_print_stack_regs(MR_mdb_out, saved_regs);
MR_print_heap_regs(MR_mdb_out, saved_regs);
MR_print_tabling_regs(MR_mdb_out, saved_regs);
MR_print_succip_reg(MR_mdb_out, saved_regs);
MR_print_r_regs(MR_mdb_out, saved_regs);
#ifdef MR_DEEP_PROFILING
MR_print_deep_prof_vars(MR_mdb_out, "mdb all_regs");
#endif
} else {
MR_trace_usage_cur_cmd();
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_debug_vars(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
if (word_count == 1) {
MR_print_debug_vars(MR_mdb_out, event_info);
} else {
MR_trace_usage_cur_cmd();
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_stats(char **words, int word_count, MR_TraceCmdInfo *cmd,
MR_EventInfo *event_info, MR_Code **jumpaddr)
{
char *filename;
FILE *fp;
MR_bool should_close;
filename = NULL;
if (! MR_trace_options_stats(&filename, &words, &word_count)) {
/* the usage message has already been printed */
return KEEP_INTERACTING;
}
if (word_count != 2) {
MR_trace_usage_cur_cmd();
return KEEP_INTERACTING;
}
if (filename != NULL) {
fp = fopen(filename, "w");
if (fp == NULL) {
fflush(MR_mdb_out);
fprintf(MR_mdb_err, "mdb: error opening `%s': %s.\n",
filename, strerror(errno));
return KEEP_INTERACTING;
}
should_close = MR_TRUE;
} else {
fp = MR_mdb_out;
should_close = MR_FALSE;
}
if (MR_streq(words[1], "procs")) {
MR_proc_layout_stats(fp);
} else if (MR_streq(words[1], "labels")) {
MR_label_layout_stats(fp);
} else if (MR_streq(words[1], "var_names")) {
MR_var_name_stats(fp);
} else if (MR_streq(words[1], "io_tabling")) {
MR_io_tabling_stats(fp);
} else {
MR_trace_usage_cur_cmd();
}
if (should_close) {
(void) fclose(fp);
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_print_optionals(char **words, int word_count,
MR_TraceCmdInfo *cmd, MR_EventInfo *event_info, MR_Code **jumpaddr)
{
if (word_count == 2 && MR_streq(words[1], "off")) {
MR_print_optionals = MR_FALSE;
MR_trace_set_level(MR_trace_current_level(), MR_print_optionals);
} else if (word_count == 2 && MR_streq(words[1], "on")) {
MR_print_optionals = MR_TRUE;
MR_trace_set_level(MR_trace_current_level(), MR_print_optionals);
} else if (word_count == 1) {
fprintf(MR_mdb_out, "optional values are %sbeing printed\n",
MR_print_optionals? "" : "not ");
} else {
MR_trace_usage_cur_cmd();
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_unhide_events(char **words, int word_count,
MR_TraceCmdInfo *cmd, MR_EventInfo *event_info, MR_Code **jumpaddr)
{
if (word_count == 2 && MR_streq(words[1], "off")) {
MR_trace_unhide_events = MR_FALSE;
fprintf(MR_mdb_out, "Hidden events are hidden.\n");
} else if (word_count == 2 && MR_streq(words[1], "on")) {
MR_trace_unhide_events = MR_TRUE;
MR_trace_have_unhid_events = MR_TRUE;
fprintf(MR_mdb_out, "Hidden events are exposed.\n");
} else if (word_count == 1) {
fprintf(MR_mdb_out, "Hidden events are %s.\n",
MR_trace_unhide_events? "exposed" : "hidden");
} else {
MR_trace_usage_cur_cmd();
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_table(char **words, int word_count,
MR_TraceCmdInfo *cmd, MR_EventInfo *event_info, MR_Code **jumpaddr)
{
MR_CallTableArg *call_table_args;
const MR_ProcLayout *proc;
MR_ProcSpec spec;
MR_ProcTableInfo *pt;
MR_TrieNode table_cur;
const MR_TableStepDesc *input_step_descs;
int num_inputs;
int filtered_num_inputs;
int cur_arg;
int filtered_cur_arg;
int num_tips;
if (word_count < 2) {
MR_trace_usage_cur_cmd();
return KEEP_INTERACTING;
}
if (! MR_parse_proc_spec(words[1], &spec)) {
fflush(MR_mdb_out);
fprintf(MR_mdb_err, "mdb: invalid procedure specification.\n");
return KEEP_INTERACTING;
}
proc = MR_find_single_matching_proc(&spec, MR_TRUE);
if (proc == NULL) {
return KEEP_INTERACTING;
}
switch (MR_sle_eval_method(proc)) {
case MR_EVAL_METHOD_NORMAL:
MR_print_proc_id(MR_mdb_out, proc);
fprintf(MR_mdb_out, " isn't tabled.\n");
return KEEP_INTERACTING;
case MR_EVAL_METHOD_LOOP_CHECK:
case MR_EVAL_METHOD_MEMO:
case MR_EVAL_METHOD_MINIMAL_STACK_COPY:
case MR_EVAL_METHOD_MINIMAL_OWN_STACKS_GENERATOR:
break;
case MR_EVAL_METHOD_MINIMAL_OWN_STACKS_CONSUMER:
MR_print_proc_id(MR_mdb_out, proc);
fprintf(MR_mdb_out,
" is the consumer; the generator has the table.\n");
return KEEP_INTERACTING;
case MR_EVAL_METHOD_TABLE_IO:
case MR_EVAL_METHOD_TABLE_IO_DECL:
case MR_EVAL_METHOD_TABLE_IO_UNITIZE:
case MR_EVAL_METHOD_TABLE_IO_UNITIZE_DECL:
fprintf(MR_mdb_out,
"IO tabled predicates do not have their own tables.\n");
return KEEP_INTERACTING;
}
/*
** words[0] is the command, words[1] is the procedure spec;
** words[2] is the first argument. We step over the command and the
** procedure spec, to leave words[] containing only the argument values.
*/
words += 2;
word_count -= 2;
pt = proc->MR_sle_table_info.MR_table_proc;
num_inputs = pt->MR_pt_num_inputs;
if (word_count > num_inputs) {
fprintf(MR_mdb_out, "There are only %d input arguments.\n",
num_inputs);
return KEEP_INTERACTING;
}
call_table_args = MR_GC_NEW_ARRAY(MR_CallTableArg, num_inputs);
if (call_table_args == NULL) {
MR_fatal_error("MR_trace_cmd_table: "
"couldn't allocate call_table_args");
}
table_cur = &pt->MR_pt_tablenode;
input_step_descs = pt->MR_pt_steps_desc[MR_TABLE_CALL_TABLE];
for (cur_arg = 0, filtered_cur_arg = 0; cur_arg < num_inputs; cur_arg++) {
switch (input_step_descs[cur_arg].MR_tsd_trie_step) {
case MR_TABLE_STEP_INT:
case MR_TABLE_STEP_FLOAT:
case MR_TABLE_STEP_STRING:
/* These are OK. */
call_table_args[filtered_cur_arg].MR_cta_step =
input_step_descs[cur_arg].MR_tsd_trie_step;
call_table_args[filtered_cur_arg].MR_cta_valid = MR_FALSE;
call_table_args[filtered_cur_arg].MR_cta_unfiltered_arg_num =
cur_arg;
filtered_cur_arg++;
case MR_TABLE_STEP_PROMISE_IMPLIED:
/* This argument doesn't exist in the table. */
break;
default:
fprintf(MR_mdb_out, "Sorry, can handle only "
"integer, float and string arguments for now.\n");
MR_GC_free(call_table_args);
return KEEP_INTERACTING;
}
}
filtered_num_inputs = filtered_cur_arg;
if (word_count > filtered_num_inputs) {
fprintf(MR_mdb_out,
"Sorry, this procedure has only %d tabled arguments\n",
filtered_num_inputs);
MR_GC_free(call_table_args);
return KEEP_INTERACTING;
}
/*
** Set up the values of the input arguments supplied on the command line,
** to enable us to print them out in each call table entry.
*/
for (filtered_cur_arg = 0;
filtered_cur_arg < word_count;
filtered_cur_arg++)
{
MR_bool success;
switch (call_table_args[filtered_cur_arg].MR_cta_step) {
case MR_TABLE_STEP_INT:
success = MR_trace_fill_in_int_table_arg_slot(&table_cur,
filtered_cur_arg + 1, words[filtered_cur_arg],
&call_table_args[filtered_cur_arg]);
break;
case MR_TABLE_STEP_FLOAT:
success = MR_trace_fill_in_float_table_arg_slot(&table_cur,
filtered_cur_arg + 1, words[filtered_cur_arg],
&call_table_args[filtered_cur_arg]);
break;
case MR_TABLE_STEP_STRING:
success = MR_trace_fill_in_string_table_arg_slot(&table_cur,
filtered_cur_arg + 1, words[filtered_cur_arg],
&call_table_args[filtered_cur_arg]);
break;
default:
MR_fatal_error("arg not int, float or string after check");
}
if (! success) {
/* the error message has already been printed */
MR_GC_free(call_table_args);
return KEEP_INTERACTING;
}
}
if (word_count == filtered_num_inputs) {
/*
** The user specified values for all the input arguments,
** so what we print is a single entry, not a table of entries,
** and we don't need to loop over all the entries.
*/
MR_trace_cmd_table_print_tip(proc, filtered_num_inputs,
call_table_args, table_cur);
MR_GC_free(call_table_args);
return KEEP_INTERACTING;
}
/*
** The user left the values of some input arguments unspecified,
** so we print a table of entries. Here we print the header.
*/
switch (MR_sle_eval_method(proc)) {
case MR_EVAL_METHOD_LOOP_CHECK:
fprintf(MR_mdb_out, "loopcheck table for ");
MR_print_proc_id(MR_mdb_out, proc);
fprintf(MR_mdb_out, ":\n");
break;
case MR_EVAL_METHOD_MEMO:
fprintf(MR_mdb_out, "memo table for ");
MR_print_proc_id(MR_mdb_out, proc);
fprintf(MR_mdb_out, ":\n");
break;
case MR_EVAL_METHOD_MINIMAL_STACK_COPY:
case MR_EVAL_METHOD_MINIMAL_OWN_STACKS_GENERATOR:
fprintf(MR_mdb_out, "minimal model table for ");
MR_print_proc_id(MR_mdb_out, proc);
fprintf(MR_mdb_out, ":\n");
break;
case MR_EVAL_METHOD_NORMAL:
case MR_EVAL_METHOD_TABLE_IO:
case MR_EVAL_METHOD_TABLE_IO_DECL:
case MR_EVAL_METHOD_TABLE_IO_UNITIZE:
case MR_EVAL_METHOD_TABLE_IO_UNITIZE_DECL:
case MR_EVAL_METHOD_MINIMAL_OWN_STACKS_CONSUMER:
MR_fatal_error("MR_trace_cmd_table: bad eval method");
}
/*
** This loop prints the entries in the table.
**
** If we knew in advance that the user left (say) two input argument
** positions unspecified, we could use a loop structure such as:
**
** for value1 in <values in the trie at node start_node[0]>
** cur_value[1] = value1
** start_node[1] = follow value1 in start_node[0]
** for value2 in <values in the trie at node start_node[1]>
** cur_value[2] = value2
** start_node[2] = follow value2 in start_node[1]
** print <fixed args>, cur_value[1], cur_value[2]
** end for
** end for
**
** However, we don't know in advance how many input arguments the user
** left unspecified. We therefore simulate the above with a single
** loop, which can function as any one of the above nested loops.
**
** The value of cur_arg controls which one it is simulating at any
** given time. Initially, cur_arg grows as we enter each of the above
** loops one after another, at each stage recording the set of values
** in the current trie node in the values array of the relevant
** argument.
**
** We number the input arguments from 0 to filtered_num_inputs-1.
** When cur_arg becomes equal to filtered_num_inputs, this means that
** we have values for all the tabled input arguments, so we print the
** corresponding call table entry. We then initiate backtracking:
** we decrement cur_arg to get the next value of the last argument.
** We also do this whenever we run out of values in any trie.
**
** We stop when we are about to backtrack out of the outermost loop.
*/
cur_arg = word_count;
num_tips = 0;
for (;;) {
MR_bool no_more;
MR_bool start_backtrack;
switch (call_table_args[cur_arg].MR_cta_step) {
case MR_TABLE_STEP_INT:
no_more = MR_update_int_table_arg_slot(&table_cur,
&call_table_args[cur_arg]);
break;
case MR_TABLE_STEP_FLOAT:
no_more = MR_update_float_table_arg_slot(&table_cur,
&call_table_args[cur_arg]);
break;
case MR_TABLE_STEP_STRING:
no_more = MR_update_string_table_arg_slot(&table_cur,
&call_table_args[cur_arg]);
break;
default:
MR_fatal_error("arg not int, float or string after check");
}
if (no_more) {
/*
** There aren't any more values in the current trie
** of input argument cur_arg.
*/
start_backtrack = MR_TRUE;
} else {
/*
** There is at least one more value in the current trie
** of input argument cur_arg, so go on to the next trie
** (if there is one).
*/
cur_arg++;
if (cur_arg >= filtered_num_inputs) {
MR_trace_cmd_table_print_tip(proc, filtered_num_inputs,
call_table_args, table_cur);
num_tips++;
start_backtrack = MR_TRUE;
} else {
start_backtrack = MR_FALSE;
}
}
if (start_backtrack) {
cur_arg--;
table_cur = call_table_args[cur_arg].MR_cta_start_node;
if (cur_arg < word_count) {
break;
}
}
}
fprintf(MR_mdb_out, "end of table (%d %s)\n",
num_tips, (num_tips == 1 ? "entry" : "entries"));
MR_GC_free(call_table_args);
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_type_ctor(char **words, int word_count,
MR_TraceCmdInfo *cmd, MR_EventInfo *event_info, MR_Code **jumpaddr)
{
const char *module_name;
const char *name;
MR_Unsigned arity;
MR_bool print_rep;
MR_bool print_functors;
MR_TypeCtorInfo type_ctor_info;
MR_do_init_modules_type_tables();
print_rep = MR_FALSE;
print_functors = MR_FALSE;
if (! MR_trace_options_type_ctor(&print_rep, &print_functors,
&words, &word_count))
{
; /* the usage message has already been printed */
} else if (word_count == 4 &&
MR_trace_is_natural_number(words[3], &arity))
{
module_name = words[1];
name = words[2];
type_ctor_info = MR_lookup_type_ctor_info(module_name, name, arity);
if (type_ctor_info != NULL) {
MR_print_type_ctor_info(MR_mdb_out, type_ctor_info, print_rep,
print_functors);
} else {
fprintf(MR_mdb_out, "there is no such type constructor\n");
}
} else {
MR_trace_usage_cur_cmd();
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_class_decl(char **words, int word_count,
MR_TraceCmdInfo *cmd, MR_EventInfo *event_info, MR_Code **jumpaddr)
{
const char *module_name;
const char *name;
MR_Unsigned arity;
MR_bool print_methods;
MR_bool print_instances;
MR_TypeClassDeclInfo *type_class_decl_info;
MR_do_init_modules_type_tables();
print_methods = MR_FALSE;
print_instances = MR_FALSE;
if (! MR_trace_options_class_decl(&print_methods, &print_instances,
&words, &word_count))
{
; /* the usage message has already been printed */
} else if (word_count == 4 &&
MR_trace_is_natural_number(words[3], &arity))
{
module_name = words[1];
name = words[2];
type_class_decl_info = MR_lookup_type_class_decl_info(module_name,
name, arity);
if (type_class_decl_info != NULL) {
MR_print_class_decl_info(MR_mdb_out, type_class_decl_info,
print_methods, print_instances);
} else {
fprintf(MR_mdb_out, "there is no such type class\n");
}
} else {
MR_trace_usage_cur_cmd();
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_all_type_ctors(char **words, int word_count,
MR_TraceCmdInfo *cmd, MR_EventInfo *event_info, MR_Code **jumpaddr)
{
MR_bool print_rep;
MR_bool print_functors;
MR_Dlist *list;
MR_Dlist *element_ptr;
MR_TypeCtorInfo type_ctor_info;
const char *module_name;
int count;
MR_do_init_modules_type_tables();
print_rep = MR_FALSE;
print_functors = MR_FALSE;
if (! MR_trace_options_type_ctor(&print_rep, &print_functors,
&words, &word_count))
{
; /* the usage message has already been printed */
} else if (word_count == 1 || word_count == 2) {
if (word_count == 2) {
module_name = words[1];
} else {
module_name = NULL;
}
list = MR_all_type_ctor_infos(NULL);
count = 0;
MR_for_dlist(element_ptr, list) {
type_ctor_info = (MR_TypeCtorInfo) MR_dlist_data(element_ptr);
if (module_name != NULL && strcmp(module_name,
type_ctor_info->MR_type_ctor_module_name) != 0)
{
continue;
}
if (count > 0) {
fprintf(MR_mdb_out, "\n");
}
MR_print_type_ctor_info(MR_mdb_out, type_ctor_info, print_rep,
print_functors);
count++;
}
fprintf(MR_mdb_out, "\nnumber of type constructors ");
if (module_name == NULL) {
fprintf(MR_mdb_out, "in the program: %d\n", count);
} else {
fprintf(MR_mdb_out, "in module %s: %d\n", module_name, count);
}
} else {
MR_trace_usage_cur_cmd();
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_all_class_decls(char **words, int word_count,
MR_TraceCmdInfo *cmd, MR_EventInfo *event_info, MR_Code **jumpaddr)
{
MR_bool print_methods;
MR_bool print_instances;
MR_Dlist *list;
MR_Dlist *element_ptr;
MR_TypeClassDeclInfo *type_class_decl_info;
const char *module_name;
int count;
MR_do_init_modules_type_tables();
print_methods = MR_FALSE;
print_instances = MR_FALSE;
if (! MR_trace_options_class_decl(&print_methods, &print_instances,
&words, &word_count))
{
; /* the usage message has already been printed */
} else if (word_count == 1 || word_count == 2) {
if (word_count == 2) {
module_name = words[1];
} else {
module_name = NULL;
}
list = MR_all_type_class_decl_infos(NULL);
count = 0;
MR_for_dlist(element_ptr, list) {
type_class_decl_info = (MR_TypeClassDeclInfo *)
MR_dlist_data(element_ptr);
if (module_name != NULL && strcmp(module_name,
type_class_decl_info->MR_tcd_info_decl->
MR_tc_decl_id->MR_tc_id_module_name) != 0)
{
continue;
}
if (count > 0) {
fprintf(MR_mdb_out, "\n");
}
MR_print_class_decl_info(MR_mdb_out, type_class_decl_info,
print_methods, print_instances);
count++;
}
fprintf(MR_mdb_out, "\nnumber of type classes ");
if (module_name == NULL) {
fprintf(MR_mdb_out, "in the program: %d\n", count);
} else {
fprintf(MR_mdb_out, "in module %s: %d\n", module_name, count);
}
} else {
MR_trace_usage_cur_cmd();
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_all_procedures(char **words, int word_count,
MR_TraceCmdInfo *cmd, MR_EventInfo *event_info, MR_Code **jumpaddr)
{
const char *filename;
MR_bool separate;
MR_bool uci;
FILE *fp;
char *module;
MR_register_all_modules_and_procs(MR_mdb_out, MR_TRUE);
separate = MR_FALSE;
uci = MR_FALSE;
module = NULL;
if (! MR_trace_options_all_procedures(&separate, &uci, &module,
&words, &word_count))
{
; /* the usage message has already been printed */
} else if (word_count == 2) {
filename = words[1];
fp = fopen(filename, "w");
if (fp == NULL) {
fflush(MR_mdb_out);
fprintf(MR_mdb_err, "mdb: error opening `%s': %s.\n",
filename, strerror(errno));
return KEEP_INTERACTING;
}
MR_dump_module_tables(fp, separate, uci, module);
if (fclose(fp) != 0) {
fprintf(MR_mdb_err, "mdb: error writing to `%s': %s.\n",
filename, strerror(errno));
return KEEP_INTERACTING;
} else {
fprintf(MR_mdb_out, "mdb: wrote table to `%s'.\n", filename);
}
} else {
MR_trace_usage_cur_cmd();
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_ambiguity(char **words, int word_count,
MR_TraceCmdInfo *cmd, MR_EventInfo *event_info, MR_Code **jumpaddr)
{
const char *filename;
MR_bool print_procs;
MR_bool print_types;
MR_bool print_functors;
FILE *fp;
int i;
filename = NULL;
print_procs = MR_FALSE;
print_types = MR_FALSE;
print_functors = MR_FALSE;
if (! MR_trace_options_ambiguity(&filename, &print_procs, &print_types,
&print_functors, &words, &word_count))
{
; /* the usage message has already been printed */
} else {
if (!print_procs && !print_types && !print_functors) {
print_procs = MR_TRUE;
print_types = MR_TRUE;
print_functors = MR_TRUE;
}
MR_register_all_modules_and_procs(MR_mdb_out, MR_TRUE);
if (filename == NULL) {
fp = MR_mdb_out;
} else {
fp = fopen(filename, "w");
if (fp == NULL) {
fflush(MR_mdb_out);
fprintf(MR_mdb_err, "mdb: error opening `%s': %s.\n",
filename, strerror(errno));
return KEEP_INTERACTING;
}
}
/*
** The words on the command line after the command name and the already
** processed options are a list of modules names. If this list is not
** empty, then we consider only the modules named here when looking for
** ambiguities.
*/
MR_print_ambiguities(fp, print_procs, print_types, print_functors,
&words[1], word_count - 1);
if (filename != NULL) {
fprintf(MR_mdb_out, "mdb: wrote report to `%s'.\n", filename);
fclose(fp);
}
}
return KEEP_INTERACTING;
}
MR_Next
MR_trace_cmd_trail_details(char **words, int word_count,
MR_TraceCmdInfo *cmd, MR_EventInfo *event_info, MR_Code **jumpaddr)
{
#if defined(MR_USE_TRAIL)
MR_Word *saved_regs;
saved_regs = event_info->MR_saved_regs;
fprintf(MR_mdb_out, "trail pointer : %ld (%lx)\n",
(long) MR_saved_trail_ptr(saved_regs),
(long) MR_saved_trail_ptr(saved_regs));
fprintf(MR_mdb_out, "ticket counter : %lu\n",
(unsigned long) MR_saved_ticket_counter(saved_regs));
fprintf(MR_mdb_out, "ticket high water: %lu\n",
(unsigned long) MR_saved_ticket_high_water(saved_regs));
fprintf(MR_mdb_out, "number of trail entries: %lu\n",
(unsigned long) MR_num_trail_entries());
#if defined(MR_TRAIL_SEGMENTS)
fprintf(MR_mdb_out, "number of trail segments: %lu\n",
(unsigned long) MR_num_trail_segments());
#endif
#else /* ! MR_USE_TRAIL */
fprintf(MR_mdb_out, "mdb: the `trail_details' command is available "
"only in trailing grades.\n");
#endif /* ! MR_USE_TRAIL */
return KEEP_INTERACTING;
}
/****************************************************************************/
static void
MR_trace_cmd_nondet_stack_2(MR_EventInfo *event_info, MR_bool detailed,
MR_FrameLimit frame_limit, MR_SpecLineLimit line_limit)
{
const MR_LabelLayout *layout;
MR_Word *saved_regs;
layout = event_info->MR_event_sll;
saved_regs = event_info->MR_saved_regs;
MR_trace_init_modules();
if (detailed) {
int saved_level;
saved_level = MR_trace_current_level();
MR_dump_nondet_stack_from_layout(MR_mdb_out, NULL, frame_limit,
line_limit, MR_saved_maxfr(saved_regs), layout,
MR_saved_sp(saved_regs), MR_saved_curfr(saved_regs));
MR_trace_set_level(saved_level, MR_print_optionals);
} else {
MR_dump_nondet_stack(MR_mdb_out, NULL, frame_limit, line_limit,
MR_saved_maxfr(saved_regs));
}
}
static const MR_ProcLayout *
MR_find_single_matching_proc(MR_ProcSpec *spec, MR_bool verbose)
{
MR_MatchesInfo matches;
MR_Unsigned n;
int i;
MR_register_all_modules_and_procs(MR_mdb_out, verbose);
matches = MR_search_for_matching_procedures(spec);
if (matches.match_proc_next == 0) {
fflush(MR_mdb_out);
fprintf(MR_mdb_err, "mdb: there is no such procedure.\n");
return NULL;
} else if (matches.match_proc_next == 1) {
return matches.match_procs[0];
} else {
char buf[100];
char *line2;
fflush(MR_mdb_out);
fprintf(MR_mdb_err, "Ambiguous procedure specification. "
"The matches are:\n");
for (i = 0; i < matches.match_proc_next; i++) {
fprintf(MR_mdb_out, "%d: ", i);
MR_print_proc_id_and_nl(MR_mdb_out, matches.match_procs[i]);
}
sprintf(buf,
"\nWhich procedure's table do you want to print (0-%"
MR_INTEGER_LENGTH_MODIFIER "d)? ",
matches.match_proc_next - 1);
line2 = MR_trace_getline(buf, MR_mdb_in, MR_mdb_out);
if (line2 == NULL || !MR_trace_is_natural_number(line2, &n)) {
fprintf(MR_mdb_out, "none of them\n");
return NULL;
} else if (n >= matches.match_proc_next) {
fprintf(MR_mdb_out, "invalid choice\n");
return NULL;
} else {
if (line2 != NULL) {
MR_free(line2);
}
return matches.match_procs[n];
}
}
}
static MR_bool
MR_trace_fill_in_int_table_arg_slot(MR_TrieNode *table_cur_ptr,
int arg_num, MR_ConstString given_arg,
MR_CallTableArg *call_table_arg_ptr)
{
MR_Integer n;
MR_TrieNode table_next;
if (! MR_trace_is_integer(given_arg, &n)) {
fprintf(MR_mdb_out, "argument %d is not an integer.\n", arg_num);
return MR_FALSE;
}
table_next = MR_int_hash_lookup(*table_cur_ptr, n);
if (table_next == NULL) {
fprintf(MR_mdb_out,
"call table does not contain %" MR_INTEGER_LENGTH_MODIFIER "d"
" in argument position %d.\n", n, arg_num);
return MR_FALSE;
}
call_table_arg_ptr->MR_cta_start_node = *table_cur_ptr;
call_table_arg_ptr->MR_cta_valid = MR_TRUE;
call_table_arg_ptr->MR_cta_int_values = NULL;
call_table_arg_ptr->MR_cta_int_value_next = -1;
call_table_arg_ptr->MR_cta_int_cur_index = -1;
call_table_arg_ptr->MR_cta_int_cur_value = n;
*table_cur_ptr = table_next;
return MR_TRUE;
}
static MR_bool
MR_trace_fill_in_float_table_arg_slot(MR_TrieNode *table_cur_ptr,
int arg_num, MR_ConstString given_arg,
MR_CallTableArg *call_table_arg_ptr)
{
MR_Float f;
MR_TrieNode table_next;
if (! MR_trace_is_float(given_arg, &f)) {
fprintf(MR_mdb_out, "argument %d is not a float.\n", arg_num);
return MR_FALSE;
}
table_next = MR_float_hash_lookup(*table_cur_ptr, f);
if (table_next == NULL) {
fprintf(MR_mdb_out,
"call table does not contain %f in argument position %d.\n",
f, arg_num);
return MR_FALSE;
}
call_table_arg_ptr->MR_cta_start_node = *table_cur_ptr;
call_table_arg_ptr->MR_cta_valid = MR_TRUE;
call_table_arg_ptr->MR_cta_float_values = NULL;
call_table_arg_ptr->MR_cta_float_value_next = -1;
call_table_arg_ptr->MR_cta_float_cur_index = -1;
call_table_arg_ptr->MR_cta_float_cur_value = f;
*table_cur_ptr = table_next;
return MR_TRUE;
}
static MR_bool
MR_trace_fill_in_string_table_arg_slot(MR_TrieNode *table_cur_ptr,
int arg_num, MR_ConstString given_arg,
MR_CallTableArg *call_table_arg_ptr)
{
MR_ConstString s;
MR_TrieNode table_next;
s = given_arg;
table_next = MR_string_hash_lookup(*table_cur_ptr, s);
if (table_next == NULL) {
fprintf(MR_mdb_out,
"call table does not contain %s in argument position %d.\n",
s, arg_num);
return MR_FALSE;
}
call_table_arg_ptr->MR_cta_start_node = *table_cur_ptr;
call_table_arg_ptr->MR_cta_valid = MR_TRUE;
call_table_arg_ptr->MR_cta_string_values = NULL;
call_table_arg_ptr->MR_cta_string_value_next = -1;
call_table_arg_ptr->MR_cta_string_cur_index = -1;
call_table_arg_ptr->MR_cta_string_cur_value = s;
*table_cur_ptr = table_next;
return MR_TRUE;
}
static MR_bool
MR_update_int_table_arg_slot(MR_TrieNode *table_cur_ptr,
MR_CallTableArg *call_table_arg_ptr)
{
MR_TrieNode table_next;
MR_Integer *values;
int value_next;
if (call_table_arg_ptr->MR_cta_valid
&& call_table_arg_ptr->MR_cta_int_values != NULL)
{
call_table_arg_ptr->MR_cta_int_cur_index++;
} else {
if (! MR_get_int_hash_table_contents(*table_cur_ptr,
&values, &value_next))
{
/* there are no values in this trie node */
call_table_arg_ptr->MR_cta_valid = MR_FALSE;
return MR_TRUE;
}
call_table_arg_ptr->MR_cta_start_node = *table_cur_ptr;
call_table_arg_ptr->MR_cta_valid = MR_TRUE;
call_table_arg_ptr->MR_cta_int_values = values;
call_table_arg_ptr->MR_cta_int_value_next = value_next;
call_table_arg_ptr->MR_cta_int_cur_index = 0;
}
if (call_table_arg_ptr->MR_cta_int_cur_index
>= call_table_arg_ptr->MR_cta_int_value_next)
{
/* we have already returned all the values in this trie node */
call_table_arg_ptr->MR_cta_valid = MR_FALSE;
return MR_TRUE;
}
call_table_arg_ptr->MR_cta_int_cur_value =
call_table_arg_ptr->MR_cta_int_values[
call_table_arg_ptr->MR_cta_int_cur_index];
table_next = MR_int_hash_lookup(call_table_arg_ptr->MR_cta_start_node,
call_table_arg_ptr->MR_cta_int_cur_value);
if (table_next == NULL) {
MR_fatal_error("MR_update_int_table_arg_slot: bad lookup");
}
*table_cur_ptr = table_next;
return MR_FALSE;
}
static MR_bool
MR_update_float_table_arg_slot(MR_TrieNode *table_cur_ptr,
MR_CallTableArg *call_table_arg_ptr)
{
MR_TrieNode table_next;
MR_Float *values;
int value_next;
if (call_table_arg_ptr->MR_cta_valid
&& call_table_arg_ptr->MR_cta_float_values != NULL)
{
call_table_arg_ptr->MR_cta_float_cur_index++;
} else {
if (! MR_get_float_hash_table_contents(*table_cur_ptr,
&values, &value_next))
{
/* there are no values in this trie node */
call_table_arg_ptr->MR_cta_valid = MR_FALSE;
return MR_TRUE;
}
call_table_arg_ptr->MR_cta_start_node = *table_cur_ptr;
call_table_arg_ptr->MR_cta_valid = MR_TRUE;
call_table_arg_ptr->MR_cta_float_values = values;
call_table_arg_ptr->MR_cta_float_value_next = value_next;
call_table_arg_ptr->MR_cta_float_cur_index = 0;
}
if (call_table_arg_ptr->MR_cta_float_cur_index
>= call_table_arg_ptr->MR_cta_float_value_next)
{
/* we have already returned all the values in this trie node */
call_table_arg_ptr->MR_cta_valid = MR_FALSE;
return MR_TRUE;
}
call_table_arg_ptr->MR_cta_float_cur_value =
call_table_arg_ptr->MR_cta_float_values[
call_table_arg_ptr->MR_cta_float_cur_index];
table_next = MR_float_hash_lookup(call_table_arg_ptr->MR_cta_start_node,
call_table_arg_ptr->MR_cta_float_cur_value);
if (table_next == NULL) {
MR_fatal_error("MR_update_float_table_arg_slot: bad lookup");
}
*table_cur_ptr = table_next;
return MR_FALSE;
}
static MR_bool
MR_update_string_table_arg_slot(MR_TrieNode *table_cur_ptr,
MR_CallTableArg *call_table_arg_ptr)
{
MR_TrieNode table_next;
MR_ConstString *values;
int value_next;
if (call_table_arg_ptr->MR_cta_valid
&& call_table_arg_ptr->MR_cta_string_values != NULL)
{
call_table_arg_ptr->MR_cta_string_cur_index++;
} else {
if (! MR_get_string_hash_table_contents(*table_cur_ptr,
&values, &value_next))
{
/* there are no values in this trie node */
call_table_arg_ptr->MR_cta_valid = MR_FALSE;
return MR_TRUE;
}
call_table_arg_ptr->MR_cta_start_node = *table_cur_ptr;
call_table_arg_ptr->MR_cta_valid = MR_TRUE;
call_table_arg_ptr->MR_cta_string_values = values;
call_table_arg_ptr->MR_cta_string_value_next = value_next;
call_table_arg_ptr->MR_cta_string_cur_index = 0;
}
if (call_table_arg_ptr->MR_cta_string_cur_index
>= call_table_arg_ptr->MR_cta_string_value_next)
{
/* we have already returned all the values in this trie node */
call_table_arg_ptr->MR_cta_valid = MR_FALSE;
return MR_TRUE;
}
call_table_arg_ptr->MR_cta_string_cur_value =
call_table_arg_ptr->MR_cta_string_values[
call_table_arg_ptr->MR_cta_string_cur_index];
table_next = MR_string_hash_lookup(
call_table_arg_ptr->MR_cta_start_node,
call_table_arg_ptr->MR_cta_string_cur_value);
if (table_next == NULL) {
MR_fatal_error("MR_update_string_table_arg_slot: bad lookup");
}
*table_cur_ptr = table_next;
return MR_FALSE;
}
static void
MR_trace_cmd_table_print_tip(const MR_ProcLayout *proc,
int num_filtered_inputs, MR_CallTableArg *call_table_args,
MR_TrieNode table)
{
int i;
MR_EvalMethod eval_method;
fprintf(MR_mdb_out, "<");
for (i = 0; i < num_filtered_inputs; i++) {
if (i > 0) {
fprintf(MR_mdb_out, ", ");
}
switch (call_table_args[i].MR_cta_step) {
case MR_TABLE_STEP_INT:
fprintf(MR_mdb_out, "%" MR_INTEGER_LENGTH_MODIFIER "d",
call_table_args[i].MR_cta_int_cur_value);
break;
case MR_TABLE_STEP_FLOAT:
fprintf(MR_mdb_out, "%f",
call_table_args[i].MR_cta_float_cur_value);
break;
case MR_TABLE_STEP_STRING:
fprintf(MR_mdb_out, "\"%s\"",
call_table_args[i].MR_cta_string_cur_value);
break;
default:
MR_fatal_error("arg not int, float or string after check");
}
}
fprintf(MR_mdb_out, ">: ");
eval_method = MR_sle_eval_method(proc);
switch (eval_method) {
case MR_EVAL_METHOD_MINIMAL_STACK_COPY:
{
MR_Subgoal *subgoal;
int subgoal_num;
fprintf(MR_mdb_out, "trie node %p\n", table);
subgoal = table->MR_subgoal;
if (subgoal == NULL) {
fprintf(MR_mdb_out, "uninitialized\n");
} else {
MR_trace_print_subgoal(proc, subgoal);
}
}
break;
case MR_EVAL_METHOD_MINIMAL_OWN_STACKS_GENERATOR:
{
MR_GeneratorPtr generator;
fprintf(MR_mdb_out, "trie node %p\n", table);
generator = table->MR_generator;
if (generator == NULL) {
fprintf(MR_mdb_out, "uninitialized\n");
} else {
MR_trace_print_generator(proc, generator);
}
}
break;
case MR_EVAL_METHOD_MEMO:
{
MR_Determinism detism;
detism = proc->MR_sle_detism;
if (MR_DETISM_DET_STACK(detism)) {
MR_print_memo_tip(MR_mdb_out, proc, table);
} else {
MR_MemoNonRecordPtr record;
record = table->MR_memo_non_record;
MR_print_memo_non_record(MR_mdb_out, proc, record);
}
}
break;
case MR_EVAL_METHOD_LOOP_CHECK:
MR_print_loopcheck_tip(MR_mdb_out, proc, table);
break;
case MR_EVAL_METHOD_NORMAL:
case MR_EVAL_METHOD_TABLE_IO:
case MR_EVAL_METHOD_TABLE_IO_DECL:
case MR_EVAL_METHOD_TABLE_IO_UNITIZE:
case MR_EVAL_METHOD_TABLE_IO_UNITIZE_DECL:
case MR_EVAL_METHOD_MINIMAL_OWN_STACKS_CONSUMER:
MR_fatal_error("MR_trace_cmd_table_print_tip: bad eval method");
break;
}
}
static void
MR_trace_print_subgoal(const MR_ProcLayout *proc, MR_Subgoal *subgoal)
{
#ifdef MR_USE_MINIMAL_MODEL_STACK_COPY
MR_print_subgoal(MR_mdb_out, proc, subgoal);
#else
fprintf(MR_mdb_out, "minimal model tabling is not enabled\n");
#endif
}
static void
MR_trace_print_subgoal_debug(const MR_ProcLayout *proc,
MR_SubgoalDebug *subgoal_debug)
{
#ifdef MR_USE_MINIMAL_MODEL_STACK_COPY
MR_print_subgoal_debug(MR_mdb_out, proc, subgoal_debug);
#else
fprintf(MR_mdb_out, "minimal model tabling is not enabled\n");
#endif
}
static void
MR_trace_print_generator(const MR_ProcLayout *proc, MR_Generator *generator)
{
#ifdef MR_USE_MINIMAL_MODEL_OWN_STACKS
MR_print_generator(MR_mdb_out, proc, generator);
#else
fprintf(MR_mdb_out, "minimal model tabling is not enabled\n");
#endif
}
static void
MR_trace_print_generator_debug(const MR_ProcLayout *proc,
MR_GenDebug *generator_debug)
{
#ifdef MR_USE_MINIMAL_MODEL_OWN_STACKS
MR_print_gen_debug(MR_mdb_out, proc, generator_debug);
#else
fprintf(MR_mdb_out, "minimal model tabling is not enabled\n");
#endif
}
static void
MR_trace_print_consumer(const MR_ProcLayout *proc, MR_Consumer *consumer)
{
#if defined(MR_USE_MINIMAL_MODEL_STACK_COPY) \
|| defined(MR_USE_MINIMAL_MODEL_OWN_STACKS)
MR_print_consumer(MR_mdb_out, proc, consumer);
#else
fprintf(MR_mdb_out, "minimal model tabling is not enabled\n");
#endif
}
static void
MR_trace_print_consumer_debug(const MR_ProcLayout *proc,
MR_ConsumerDebug *consumer_debug)
{
#if defined(MR_USE_MINIMAL_MODEL_STACK_COPY)
MR_print_consumer_debug(MR_mdb_out, proc, consumer_debug);
#elif defined(MR_USE_MINIMAL_MODEL_STACK_COPY)
MR_print_cons_debug(MR_mdb_out, proc, consumer_debug);
#else
fprintf(MR_mdb_out, "minimal model tabling is not enabled\n");
#endif
}
static void
MR_print_type_ctor_info(FILE *fp, MR_TypeCtorInfo type_ctor_info,
MR_bool print_rep, MR_bool print_functors)
{
MR_TypeCtorRep rep;
MR_EnumFunctorDesc *enum_functor;
MR_DuFunctorDesc *du_functor;
MR_MaybeResAddrFunctorDesc *maybe_res_functor;
MR_NotagFunctorDesc *notag_functor;
int num_functors;
int i;
fprintf(fp, "type constructor %s.%s/%d",
type_ctor_info->MR_type_ctor_module_name,
type_ctor_info->MR_type_ctor_name,
(int) type_ctor_info->MR_type_ctor_arity);
rep = MR_type_ctor_rep(type_ctor_info);
if (print_rep) {
fprintf(fp, ": %s\n", MR_ctor_rep_name[MR_GET_ENUM_VALUE(rep)]);
} else {
fprintf(fp, "\n");
}
if (print_functors) {
num_functors = type_ctor_info->MR_type_ctor_num_functors;
switch (rep) {
case MR_TYPECTOR_REP_ENUM:
case MR_TYPECTOR_REP_ENUM_USEREQ:
for (i = 0; i < num_functors; i++) {
enum_functor = type_ctor_info->MR_type_ctor_functors.
MR_functors_enum[i];
if (i > 0) {
fprintf(fp, ", ");
}
fprintf(fp, "%s/0", enum_functor->MR_enum_functor_name);
}
fprintf(fp, "\n");
break;
case MR_TYPECTOR_REP_DU:
case MR_TYPECTOR_REP_DU_USEREQ:
for (i = 0; i < num_functors; i++) {
du_functor = type_ctor_info->MR_type_ctor_functors.
MR_functors_du[i];
if (i > 0) {
fprintf(fp, ", ");
}
fprintf(fp, "%s/%d", du_functor->MR_du_functor_name,
du_functor-> MR_du_functor_orig_arity);
}
fprintf(fp, "\n");
break;
case MR_TYPECTOR_REP_RESERVED_ADDR:
case MR_TYPECTOR_REP_RESERVED_ADDR_USEREQ:
for (i = 0; i < num_functors; i++) {
maybe_res_functor = &type_ctor_info->MR_type_ctor_functors.
MR_functors_res[i];
if (i > 0) {
fprintf(fp, ", ");
}
fprintf(fp, "%s/%d", maybe_res_functor->MR_maybe_res_name,
(int) maybe_res_functor-> MR_maybe_res_arity);
}
fprintf(fp, "\n");
break;
case MR_TYPECTOR_REP_NOTAG:
case MR_TYPECTOR_REP_NOTAG_USEREQ:
case MR_TYPECTOR_REP_NOTAG_GROUND:
case MR_TYPECTOR_REP_NOTAG_GROUND_USEREQ:
notag_functor = type_ctor_info->MR_type_ctor_functors.
MR_functors_notag;
fprintf(fp, "%s/1\n", notag_functor->MR_notag_functor_name);
break;
default:
break;
}
}
}
static void
MR_print_class_decl_info(FILE *fp, MR_TypeClassDeclInfo *type_class_decl_info,
MR_bool print_methods, MR_bool print_instances)
{
MR_TypeClassDecl type_class_decl;
const MR_TypeClassId *type_class_id;
const MR_TypeClassMethod *method;
MR_Instance instance;
MR_Dlist *list;
MR_Dlist *element_ptr;
int num_methods;
int i;
type_class_decl = type_class_decl_info->MR_tcd_info_decl;
type_class_id = type_class_decl->MR_tc_decl_id;
fprintf(fp, "type class %s.%s/%d\n",
type_class_id->MR_tc_id_module_name,
type_class_id->MR_tc_id_name,
type_class_id->MR_tc_id_arity);
if (print_methods) {
num_methods = type_class_id->MR_tc_id_num_methods;
fprintf(fp, "methods: ");
for (i = 0; i < num_methods; i++) {
if (i > 0) {
fprintf(fp, ", ");
}
method = &type_class_id->MR_tc_id_methods[i];
if (method->MR_tc_method_pred_func == MR_FUNCTION) {
fprintf(fp, "func ");
} else {
fprintf(fp, "pred ");
}
fprintf(fp, "%s/%d", method->MR_tc_method_name,
method->MR_tc_method_arity);
}
fprintf(fp, "\n");
}
if (print_instances) {
list = type_class_decl_info->MR_tcd_info_instances;
MR_for_dlist (element_ptr, list) {
instance = (MR_Instance) MR_dlist_data(element_ptr);
if (instance->MR_tc_inst_type_class != type_class_decl) {
MR_fatal_error("instance/type class mismatch");
}
fprintf(fp, "instance ");
for (i = 0; i < type_class_id->MR_tc_id_arity; i++) {
if (i > 0) {
fprintf(fp, ", ");
}
MR_print_pseudo_type_info(fp,
instance->MR_tc_inst_type_args[i]);
}
fprintf(fp, "\n");
}
}
}
static void
MR_print_pseudo_type_info(FILE *fp, MR_PseudoTypeInfo pseudo)
{
MR_TypeCtorInfo type_ctor_info;
MR_PseudoTypeInfo *pseudo_args;
MR_Integer tvar_num;
int arity;
int i;
if (MR_PSEUDO_TYPEINFO_IS_VARIABLE(pseudo)) {
tvar_num = (MR_Integer) pseudo;
fprintf(fp, "T%d", (int) tvar_num);
} else {
type_ctor_info = MR_PSEUDO_TYPEINFO_GET_TYPE_CTOR_INFO(pseudo);
fprintf(fp, "%s.%s",
type_ctor_info->MR_type_ctor_module_name,
type_ctor_info->MR_type_ctor_name);
if (MR_type_ctor_has_variable_arity(type_ctor_info)) {
arity = MR_PSEUDO_TYPEINFO_GET_VAR_ARITY_ARITY(pseudo);
pseudo_args = (MR_PseudoTypeInfo *)
&pseudo->MR_pti_var_arity_arity;
} else {
arity = type_ctor_info->MR_type_ctor_arity;
pseudo_args = (MR_PseudoTypeInfo *) &pseudo->MR_pti_type_ctor_info;
}
if (type_ctor_info->MR_type_ctor_arity > 0) {
fprintf(fp, "(");
for (i = 1; i <= arity; i++) {
if (i > 1) {
fprintf(fp, ", ");
}
MR_print_pseudo_type_info(fp, pseudo_args[i]);
}
fprintf(fp, ")");
}
}
}
/****************************************************************************/
/*
** It is better to have a single completion where possible,
** so don't include `-d' here.
*/
const char *const MR_trace_nondet_stack_cmd_args[] =
{ "--detailed", NULL };
const char *const MR_trace_stats_cmd_args[] =
{ "procs", "labels", "var_names", "io_tabling", NULL };
/****************************************************************************/
static struct MR_option MR_trace_nondet_stack_opts[] =
{
{ "detailed", MR_no_argument, NULL, 'd' },
{ "frame-limit", MR_required_argument, NULL, 'f' },
{ NULL, MR_no_argument, NULL, 0 }
};
static MR_bool
MR_trace_options_nondet_stack(MR_bool *detailed, MR_FrameLimit *frame_limit,
char ***words, int *word_count)
{
int c;
MR_optind = 0;
while ((c = MR_getopt_long(*word_count, *words, "df:",
MR_trace_nondet_stack_opts, NULL)) != EOF)
{
switch (c) {
case 'd':
*detailed = MR_TRUE;
break;
case 'f':
if (! MR_trace_is_natural_number(MR_optarg, frame_limit)) {
MR_trace_usage_cur_cmd();
return MR_FALSE;
}
break;
default:
MR_trace_usage_cur_cmd();
return MR_FALSE;
}
}
*words = *words + MR_optind - 1;
*word_count = *word_count - MR_optind + 1;
return MR_TRUE;
}
static struct MR_option MR_trace_stats_opts[] =
{
{ "file", MR_required_argument, NULL, 'f' },
{ NULL, MR_no_argument, NULL, 0 }
};
static MR_bool
MR_trace_options_stats(char **filename, char ***words, int *word_count)
{
int c;
MR_optind = 0;
while ((c = MR_getopt_long(*word_count, *words, "f:",
MR_trace_stats_opts, NULL)) != EOF)
{
switch (c) {
case 'f':
*filename = MR_optarg;
break;
default:
MR_trace_usage_cur_cmd();
return MR_FALSE;
}
}
*words = *words + MR_optind - 1;
*word_count = *word_count - MR_optind + 1;
return MR_TRUE;
}
static struct MR_option MR_trace_type_ctor_opts[] =
{
{ "print-rep", MR_no_argument, NULL, 'r' },
{ "print-functors", MR_no_argument, NULL, 'f' },
{ NULL, MR_no_argument, NULL, 0 }
};
static MR_bool
MR_trace_options_type_ctor(MR_bool *print_rep, MR_bool *print_functors,
char ***words, int *word_count)
{
int c;
MR_optind = 0;
while ((c = MR_getopt_long(*word_count, *words, "rf",
MR_trace_type_ctor_opts, NULL)) != EOF)
{
switch (c) {
case 'f':
*print_functors = MR_TRUE;
break;
case 'r':
*print_rep = MR_TRUE;
break;
default:
MR_trace_usage_cur_cmd();
return MR_FALSE;
}
}
*words = *words + MR_optind - 1;
*word_count = *word_count - MR_optind + 1;
return MR_TRUE;
}
static struct MR_option MR_trace_class_decl_opts[] =
{
{ "print-methods", MR_no_argument, NULL, 'm' },
{ "print-instances", MR_no_argument, NULL, 'i' },
{ NULL, MR_no_argument, NULL, 0 }
};
static MR_bool
MR_trace_options_class_decl(MR_bool *print_methods, MR_bool *print_instances,
char ***words, int *word_count)
{
int c;
MR_optind = 0;
while ((c = MR_getopt_long(*word_count, *words, "mi",
MR_trace_class_decl_opts, NULL)) != EOF)
{
switch (c) {
case 'm':
*print_methods = MR_TRUE;
break;
case 'i':
*print_instances = MR_TRUE;
break;
default:
MR_trace_usage_cur_cmd();
return MR_FALSE;
}
}
*words = *words + MR_optind - 1;
*word_count = *word_count - MR_optind + 1;
return MR_TRUE;
}
static struct MR_option MR_trace_all_procedures_opts[] =
{
{ "separate", MR_no_argument, NULL, 's' },
{ "uci", MR_no_argument, NULL, 'u' },
{ "module", MR_required_argument, NULL, 'm' },
{ NULL, MR_no_argument, NULL, 0 }
};
static MR_bool
MR_trace_options_all_procedures(MR_bool *separate, MR_bool *uci, char **module,
char ***words, int *word_count)
{
int c;
MR_optind = 0;
while ((c = MR_getopt_long(*word_count, *words, "sum:",
MR_trace_all_procedures_opts, NULL)) != EOF)
{
switch (c) {
case 's':
*separate = MR_TRUE;
break;
case 'u':
*uci = MR_TRUE;
break;
case 'm':
*module = MR_optarg;
break;
default:
MR_trace_usage_cur_cmd();
return MR_FALSE;
}
}
*words = *words + MR_optind - 1;
*word_count = *word_count - MR_optind + 1;
return MR_TRUE;
}
static struct MR_option MR_trace_ambiguity_opts[] =
{
{ "outputfile", MR_required_argument, NULL, 'o' },
{ "procedures", MR_no_argument, NULL, 'p' },
{ "types", MR_no_argument, NULL, 't' },
{ "functors", MR_no_argument, NULL, 'f' },
{ NULL, MR_no_argument, NULL, 0 }
};
static MR_bool
MR_trace_options_ambiguity(const char **outfile, MR_bool *print_procs,
MR_bool *print_types, MR_bool *print_functors, char ***words,
int *word_count)
{
int c;
MR_optind = 0;
while ((c = MR_getopt_long(*word_count, *words, "o:ptf",
MR_trace_ambiguity_opts, NULL)) != EOF)
{
switch (c) {
case 'o':
*outfile = MR_optarg;
break;
case 'p':
*print_procs = MR_TRUE;
break;
case 't':
*print_types = MR_TRUE;
break;
case 'f':
*print_functors = MR_TRUE;
break;
default:
MR_trace_usage_cur_cmd();
return MR_FALSE;
}
}
*words = *words + MR_optind - 1;
*word_count = *word_count - MR_optind + 1;
return MR_TRUE;
}
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