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acrn-kernel/tools/perf/pmu-events/jevents.c

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#define _XOPEN_SOURCE 500 /* needed for nftw() */
#define _GNU_SOURCE /* needed for asprintf() */
/* Parse event JSON files */
/*
* Copyright (c) 2014, Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <ctype.h>
#include <unistd.h>
#include <stdarg.h>
#include <libgen.h>
#include <dirent.h>
#include <sys/time.h> /* getrlimit */
#include <sys/resource.h> /* getrlimit */
#include <ftw.h>
#include <sys/stat.h>
#include "jsmn.h"
#include "json.h"
#include "jevents.h"
int verbose;
char *prog;
int eprintf(int level, int var, const char *fmt, ...)
{
int ret;
va_list args;
if (var < level)
return 0;
va_start(args, fmt);
ret = vfprintf(stderr, fmt, args);
va_end(args);
return ret;
}
__attribute__((weak)) char *get_cpu_str(void)
{
return NULL;
}
static void addfield(char *map, char **dst, const char *sep,
const char *a, jsmntok_t *bt)
{
unsigned int len = strlen(a) + 1 + strlen(sep);
int olen = *dst ? strlen(*dst) : 0;
int blen = bt ? json_len(bt) : 0;
char *out;
out = realloc(*dst, len + olen + blen);
if (!out) {
/* Don't add field in this case */
return;
}
*dst = out;
if (!olen)
*(*dst) = 0;
else
strcat(*dst, sep);
strcat(*dst, a);
if (bt)
strncat(*dst, map + bt->start, blen);
}
static void fixname(char *s)
{
for (; *s; s++)
*s = tolower(*s);
}
static void fixdesc(char *s)
{
char *e = s + strlen(s);
/* Remove trailing dots that look ugly in perf list */
--e;
while (e >= s && isspace(*e))
--e;
if (*e == '.')
*e = 0;
}
static struct msrmap {
const char *num;
const char *pname;
} msrmap[] = {
{ "0x3F6", "ldlat=" },
{ "0x1A6", "offcore_rsp=" },
{ "0x1A7", "offcore_rsp=" },
{ "0x3F7", "frontend=" },
{ NULL, NULL }
};
static struct field {
const char *field;
const char *kernel;
} fields[] = {
{ "UMask", "umask=" },
{ "CounterMask", "cmask=" },
{ "Invert", "inv=" },
{ "AnyThread", "any=" },
{ "EdgeDetect", "edge=" },
{ "SampleAfterValue", "period=" },
{ "FCMask", "fc_mask=" },
{ "PortMask", "ch_mask=" },
{ NULL, NULL }
};
static void cut_comma(char *map, jsmntok_t *newval)
{
int i;
/* Cut off everything after comma */
for (i = newval->start; i < newval->end; i++) {
if (map[i] == ',')
newval->end = i;
}
}
static int match_field(char *map, jsmntok_t *field, int nz,
char **event, jsmntok_t *val)
{
struct field *f;
jsmntok_t newval = *val;
for (f = fields; f->field; f++)
if (json_streq(map, field, f->field) && nz) {
cut_comma(map, &newval);
addfield(map, event, ",", f->kernel, &newval);
return 1;
}
return 0;
}
static struct msrmap *lookup_msr(char *map, jsmntok_t *val)
{
jsmntok_t newval = *val;
static bool warned;
int i;
cut_comma(map, &newval);
for (i = 0; msrmap[i].num; i++)
if (json_streq(map, &newval, msrmap[i].num))
return &msrmap[i];
if (!warned) {
warned = true;
pr_err("%s: Unknown MSR in event file %.*s\n", prog,
json_len(val), map + val->start);
}
return NULL;
}
static struct map {
const char *json;
const char *perf;
} unit_to_pmu[] = {
{ "CBO", "uncore_cbox" },
{ "QPI LL", "uncore_qpi" },
{ "SBO", "uncore_sbox" },
{ "iMPH-U", "uncore_arb" },
{}
};
static const char *field_to_perf(struct map *table, char *map, jsmntok_t *val)
{
int i;
for (i = 0; table[i].json; i++) {
if (json_streq(map, val, table[i].json))
return table[i].perf;
}
return NULL;
}
#define EXPECT(e, t, m) do { if (!(e)) { \
jsmntok_t *loc = (t); \
if (!(t)->start && (t) > tokens) \
loc = (t) - 1; \
pr_err("%s:%d: " m ", got %s\n", fn, \
json_line(map, loc), \
json_name(t)); \
goto out_free; \
} } while (0)
#define TOPIC_DEPTH 256
static char *topic_array[TOPIC_DEPTH];
static int topic_level;
static char *get_topic(void)
{
char *tp_old, *tp = NULL;
int i;
for (i = 0; i < topic_level + 1; i++) {
int n;
tp_old = tp;
n = asprintf(&tp, "%s%s", tp ?: "", topic_array[i]);
if (n < 0) {
pr_info("%s: asprintf() error %s\n", prog);
return NULL;
}
free(tp_old);
}
for (i = 0; i < (int) strlen(tp); i++) {
char c = tp[i];
if (c == '-')
tp[i] = ' ';
else if (c == '.') {
tp[i] = '\0';
break;
}
}
return tp;
}
static int add_topic(int level, char *bname)
{
char *topic;
level -= 2;
if (level >= TOPIC_DEPTH)
return -EINVAL;
topic = strdup(bname);
if (!topic) {
pr_info("%s: strdup() error %s for file %s\n", prog,
strerror(errno), bname);
return -ENOMEM;
}
free(topic_array[topic_level]);
topic_array[topic_level] = topic;
topic_level = level;
return 0;
}
struct perf_entry_data {
FILE *outfp;
char *topic;
};
static int close_table;
static void print_events_table_prefix(FILE *fp, const char *tblname)
{
fprintf(fp, "struct pmu_event %s[] = {\n", tblname);
close_table = 1;
}
static int print_events_table_entry(void *data, char *name, char *event,
char *desc, char *long_desc,
char *pmu, char *unit, char *perpkg,
char *metric_expr,
char *metric_name)
{
struct perf_entry_data *pd = data;
FILE *outfp = pd->outfp;
char *topic = pd->topic;
/*
* TODO: Remove formatting chars after debugging to reduce
* string lengths.
*/
fprintf(outfp, "{\n");
fprintf(outfp, "\t.name = \"%s\",\n", name);
fprintf(outfp, "\t.event = \"%s\",\n", event);
fprintf(outfp, "\t.desc = \"%s\",\n", desc);
fprintf(outfp, "\t.topic = \"%s\",\n", topic);
if (long_desc && long_desc[0])
fprintf(outfp, "\t.long_desc = \"%s\",\n", long_desc);
if (pmu)
fprintf(outfp, "\t.pmu = \"%s\",\n", pmu);
if (unit)
fprintf(outfp, "\t.unit = \"%s\",\n", unit);
if (perpkg)
fprintf(outfp, "\t.perpkg = \"%s\",\n", perpkg);
if (metric_expr)
fprintf(outfp, "\t.metric_expr = \"%s\",\n", metric_expr);
if (metric_name)
fprintf(outfp, "\t.metric_name = \"%s\",\n", metric_name);
fprintf(outfp, "},\n");
return 0;
}
static void print_events_table_suffix(FILE *outfp)
{
fprintf(outfp, "{\n");
fprintf(outfp, "\t.name = 0,\n");
fprintf(outfp, "\t.event = 0,\n");
fprintf(outfp, "\t.desc = 0,\n");
fprintf(outfp, "},\n");
fprintf(outfp, "};\n");
close_table = 0;
}
static struct fixed {
const char *name;
const char *event;
} fixed[] = {
{ "inst_retired.any", "event=0xc0" },
{ "inst_retired.any_p", "event=0xc0" },
{ "cpu_clk_unhalted.ref", "event=0x0,umask=0x03" },
{ "cpu_clk_unhalted.thread", "event=0x3c" },
{ "cpu_clk_unhalted.thread_any", "event=0x3c,any=1" },
{ NULL, NULL},
};
/*
* Handle different fixed counter encodings between JSON and perf.
*/
static char *real_event(const char *name, char *event)
{
int i;
for (i = 0; fixed[i].name; i++)
if (!strcasecmp(name, fixed[i].name))
return (char *)fixed[i].event;
return event;
}
/* Call func with each event in the json file */
int json_events(const char *fn,
int (*func)(void *data, char *name, char *event, char *desc,
char *long_desc,
char *pmu, char *unit, char *perpkg,
char *metric_expr,
char *metric_name),
void *data)
{
int err = -EIO;
size_t size;
jsmntok_t *tokens, *tok;
int i, j, len;
char *map;
char buf[128];
if (!fn)
return -ENOENT;
tokens = parse_json(fn, &map, &size, &len);
if (!tokens)
return -EIO;
EXPECT(tokens->type == JSMN_ARRAY, tokens, "expected top level array");
tok = tokens + 1;
for (i = 0; i < tokens->size; i++) {
char *event = NULL, *desc = NULL, *name = NULL;
char *long_desc = NULL;
char *extra_desc = NULL;
char *pmu = NULL;
char *filter = NULL;
char *perpkg = NULL;
char *unit = NULL;
char *metric_expr = NULL;
char *metric_name = NULL;
unsigned long long eventcode = 0;
struct msrmap *msr = NULL;
jsmntok_t *msrval = NULL;
jsmntok_t *precise = NULL;
jsmntok_t *obj = tok++;
EXPECT(obj->type == JSMN_OBJECT, obj, "expected object");
for (j = 0; j < obj->size; j += 2) {
jsmntok_t *field, *val;
int nz;
char *s;
field = tok + j;
EXPECT(field->type == JSMN_STRING, tok + j,
"Expected field name");
val = tok + j + 1;
EXPECT(val->type == JSMN_STRING, tok + j + 1,
"Expected string value");
nz = !json_streq(map, val, "0");
if (match_field(map, field, nz, &event, val)) {
/* ok */
} else if (json_streq(map, field, "EventCode")) {
char *code = NULL;
addfield(map, &code, "", "", val);
eventcode |= strtoul(code, NULL, 0);
free(code);
} else if (json_streq(map, field, "ExtSel")) {
char *code = NULL;
addfield(map, &code, "", "", val);
eventcode |= strtoul(code, NULL, 0) << 21;
free(code);
} else if (json_streq(map, field, "EventName")) {
addfield(map, &name, "", "", val);
} else if (json_streq(map, field, "BriefDescription")) {
addfield(map, &desc, "", "", val);
fixdesc(desc);
} else if (json_streq(map, field,
"PublicDescription")) {
addfield(map, &long_desc, "", "", val);
fixdesc(long_desc);
} else if (json_streq(map, field, "PEBS") && nz) {
precise = val;
} else if (json_streq(map, field, "MSRIndex") && nz) {
msr = lookup_msr(map, val);
} else if (json_streq(map, field, "MSRValue")) {
msrval = val;
} else if (json_streq(map, field, "Errata") &&
!json_streq(map, val, "null")) {
addfield(map, &extra_desc, ". ",
" Spec update: ", val);
} else if (json_streq(map, field, "Data_LA") && nz) {
addfield(map, &extra_desc, ". ",
" Supports address when precise",
NULL);
} else if (json_streq(map, field, "Unit")) {
const char *ppmu;
ppmu = field_to_perf(unit_to_pmu, map, val);
if (ppmu) {
pmu = strdup(ppmu);
} else {
if (!pmu)
pmu = strdup("uncore_");
addfield(map, &pmu, "", "", val);
for (s = pmu; *s; s++)
*s = tolower(*s);
}
addfield(map, &desc, ". ", "Unit: ", NULL);
addfield(map, &desc, "", pmu, NULL);
addfield(map, &desc, "", " ", NULL);
} else if (json_streq(map, field, "Filter")) {
addfield(map, &filter, "", "", val);
} else if (json_streq(map, field, "ScaleUnit")) {
addfield(map, &unit, "", "", val);
} else if (json_streq(map, field, "PerPkg")) {
addfield(map, &perpkg, "", "", val);
} else if (json_streq(map, field, "MetricName")) {
addfield(map, &metric_name, "", "", val);
} else if (json_streq(map, field, "MetricExpr")) {
addfield(map, &metric_expr, "", "", val);
for (s = metric_expr; *s; s++)
*s = tolower(*s);
}
/* ignore unknown fields */
}
if (precise && desc && !strstr(desc, "(Precise Event)")) {
if (json_streq(map, precise, "2"))
addfield(map, &extra_desc, " ",
"(Must be precise)", NULL);
else
addfield(map, &extra_desc, " ",
"(Precise event)", NULL);
}
snprintf(buf, sizeof buf, "event=%#llx", eventcode);
addfield(map, &event, ",", buf, NULL);
if (desc && extra_desc)
addfield(map, &desc, " ", extra_desc, NULL);
if (long_desc && extra_desc)
addfield(map, &long_desc, " ", extra_desc, NULL);
if (filter)
addfield(map, &event, ",", filter, NULL);
if (msr != NULL)
addfield(map, &event, ",", msr->pname, msrval);
fixname(name);
err = func(data, name, real_event(name, event), desc, long_desc,
pmu, unit, perpkg, metric_expr, metric_name);
free(event);
free(desc);
free(name);
free(long_desc);
free(extra_desc);
free(pmu);
free(filter);
free(perpkg);
free(unit);
free(metric_expr);
free(metric_name);
if (err)
break;
tok += j;
}
EXPECT(tok - tokens == len, tok, "unexpected objects at end");
err = 0;
out_free:
free_json(map, size, tokens);
return err;
}
static char *file_name_to_table_name(char *fname)
{
unsigned int i;
int n;
int c;
char *tblname;
/*
* Ensure tablename starts with alphabetic character.
* Derive rest of table name from basename of the JSON file,
* replacing hyphens and stripping out .json suffix.
*/
n = asprintf(&tblname, "pme_%s", basename(fname));
if (n < 0) {
pr_info("%s: asprintf() error %s for file %s\n", prog,
strerror(errno), fname);
return NULL;
}
for (i = 0; i < strlen(tblname); i++) {
c = tblname[i];
if (c == '-')
tblname[i] = '_';
else if (c == '.') {
tblname[i] = '\0';
break;
} else if (!isalnum(c) && c != '_') {
pr_err("%s: Invalid character '%c' in file name %s\n",
prog, c, basename(fname));
free(tblname);
tblname = NULL;
break;
}
}
return tblname;
}
static void print_mapping_table_prefix(FILE *outfp)
{
fprintf(outfp, "struct pmu_events_map pmu_events_map[] = {\n");
}
static void print_mapping_table_suffix(FILE *outfp)
{
/*
* Print the terminating, NULL entry.
*/
fprintf(outfp, "{\n");
fprintf(outfp, "\t.cpuid = 0,\n");
fprintf(outfp, "\t.version = 0,\n");
fprintf(outfp, "\t.type = 0,\n");
fprintf(outfp, "\t.table = 0,\n");
fprintf(outfp, "},\n");
/* and finally, the closing curly bracket for the struct */
fprintf(outfp, "};\n");
}
static int process_mapfile(FILE *outfp, char *fpath)
{
int n = 16384;
FILE *mapfp;
char *save = NULL;
char *line, *p;
int line_num;
char *tblname;
pr_info("%s: Processing mapfile %s\n", prog, fpath);
line = malloc(n);
if (!line)
return -1;
mapfp = fopen(fpath, "r");
if (!mapfp) {
pr_info("%s: Error %s opening %s\n", prog, strerror(errno),
fpath);
return -1;
}
print_mapping_table_prefix(outfp);
/* Skip first line (header) */
p = fgets(line, n, mapfp);
if (!p)
goto out;
line_num = 1;
while (1) {
char *cpuid, *version, *type, *fname;
line_num++;
p = fgets(line, n, mapfp);
if (!p)
break;
if (line[0] == '#' || line[0] == '\n')
continue;
if (line[strlen(line)-1] != '\n') {
/* TODO Deal with lines longer than 16K */
pr_info("%s: Mapfile %s: line %d too long, aborting\n",
prog, fpath, line_num);
return -1;
}
line[strlen(line)-1] = '\0';
cpuid = strtok_r(p, ",", &save);
version = strtok_r(NULL, ",", &save);
fname = strtok_r(NULL, ",", &save);
type = strtok_r(NULL, ",", &save);
tblname = file_name_to_table_name(fname);
fprintf(outfp, "{\n");
fprintf(outfp, "\t.cpuid = \"%s\",\n", cpuid);
fprintf(outfp, "\t.version = \"%s\",\n", version);
fprintf(outfp, "\t.type = \"%s\",\n", type);
/*
* CHECK: We can't use the type (eg "core") field in the
* table name. For us to do that, we need to somehow tweak
* the other caller of file_name_to_table(), process_json()
* to determine the type. process_json() file has no way
* of knowing these are "core" events unless file name has
* core in it. If filename has core in it, we can safely
* ignore the type field here also.
*/
fprintf(outfp, "\t.table = %s\n", tblname);
fprintf(outfp, "},\n");
}
out:
print_mapping_table_suffix(outfp);
return 0;
}
/*
* If we fail to locate/process JSON and map files, create a NULL mapping
* table. This would at least allow perf to build even if we can't find/use
* the aliases.
*/
static void create_empty_mapping(const char *output_file)
{
FILE *outfp;
pr_info("%s: Creating empty pmu_events_map[] table\n", prog);
/* Truncate file to clear any partial writes to it */
outfp = fopen(output_file, "w");
if (!outfp) {
perror("fopen()");
_Exit(1);
}
fprintf(outfp, "#include \"../../pmu-events/pmu-events.h\"\n");
print_mapping_table_prefix(outfp);
print_mapping_table_suffix(outfp);
fclose(outfp);
}
static int get_maxfds(void)
{
struct rlimit rlim;
if (getrlimit(RLIMIT_NOFILE, &rlim) == 0)
return min((int)rlim.rlim_max / 2, 512);
return 512;
}
/*
* nftw() doesn't let us pass an argument to the processing function,
* so use a global variables.
*/
static FILE *eventsfp;
static char *mapfile;
static int process_one_file(const char *fpath, const struct stat *sb,
int typeflag, struct FTW *ftwbuf)
{
char *tblname, *bname = (char *) fpath + ftwbuf->base;
int is_dir = typeflag == FTW_D;
int is_file = typeflag == FTW_F;
int level = ftwbuf->level;
int err = 0;
pr_debug("%s %d %7jd %-20s %s\n",
is_file ? "f" : is_dir ? "d" : "x",
level, sb->st_size, bname, fpath);
/* base dir */
if (level == 0)
return 0;
/* model directory, reset topic */
if (level == 1 && is_dir) {
if (close_table)
print_events_table_suffix(eventsfp);
/*
* Drop file name suffix. Replace hyphens with underscores.
* Fail if file name contains any alphanum characters besides
* underscores.
*/
tblname = file_name_to_table_name(bname);
if (!tblname) {
pr_info("%s: Error determining table name for %s\n", prog,
bname);
return -1;
}
print_events_table_prefix(eventsfp, tblname);
return 0;
}
/*
* Save the mapfile name for now. We will process mapfile
* after processing all JSON files (so we can write out the
* mapping table after all PMU events tables).
*
* TODO: Allow for multiple mapfiles? Punt for now.
*/
if (level == 1 && is_file) {
if (!strncmp(bname, "mapfile.csv", 11)) {
if (mapfile) {
pr_info("%s: Many mapfiles? Using %s, ignoring %s\n",
prog, mapfile, fpath);
} else {
mapfile = strdup(fpath);
}
return 0;
}
pr_info("%s: Ignoring file %s\n", prog, fpath);
return 0;
}
/*
* If the file name does not have a .json extension,
* ignore it. It could be a readme.txt for instance.
*/
if (is_file) {
char *suffix = bname + strlen(bname) - 5;
if (strncmp(suffix, ".json", 5)) {
pr_info("%s: Ignoring file without .json suffix %s\n", prog,
fpath);
return 0;
}
}
if (level > 1 && add_topic(level, bname))
return -ENOMEM;
/*
* Assume all other files are JSON files.
*
* If mapfile refers to 'power7_core.json', we create a table
* named 'power7_core'. Any inconsistencies between the mapfile
* and directory tree could result in build failure due to table
* names not being found.
*
* Atleast for now, be strict with processing JSON file names.
* i.e. if JSON file name cannot be mapped to C-style table name,
* fail.
*/
if (is_file) {
struct perf_entry_data data = {
.topic = get_topic(),
.outfp = eventsfp,
};
err = json_events(fpath, print_events_table_entry, &data);
free(data.topic);
}
return err;
}
#ifndef PATH_MAX
#define PATH_MAX 4096
#endif
/*
* Starting in directory 'start_dirname', find the "mapfile.csv" and
* the set of JSON files for the architecture 'arch'.
*
* From each JSON file, create a C-style "PMU events table" from the
* JSON file (see struct pmu_event).
*
* From the mapfile, create a mapping between the CPU revisions and
* PMU event tables (see struct pmu_events_map).
*
* Write out the PMU events tables and the mapping table to pmu-event.c.
*/
int main(int argc, char *argv[])
{
int rc;
int maxfds;
char ldirname[PATH_MAX];
const char *arch;
const char *output_file;
const char *start_dirname;
struct stat stbuf;
prog = basename(argv[0]);
if (argc < 4) {
pr_err("Usage: %s <arch> <starting_dir> <output_file>\n", prog);
return 1;
}
arch = argv[1];
start_dirname = argv[2];
output_file = argv[3];
if (argc > 4)
verbose = atoi(argv[4]);
eventsfp = fopen(output_file, "w");
if (!eventsfp) {
pr_err("%s Unable to create required file %s (%s)\n",
prog, output_file, strerror(errno));
return 2;
}
sprintf(ldirname, "%s/%s", start_dirname, arch);
/* If architecture does not have any event lists, bail out */
if (stat(ldirname, &stbuf) < 0) {
pr_info("%s: Arch %s has no PMU event lists\n", prog, arch);
goto empty_map;
}
/* Include pmu-events.h first */
fprintf(eventsfp, "#include \"../../pmu-events/pmu-events.h\"\n");
/*
* The mapfile allows multiple CPUids to point to the same JSON file,
* so, not sure if there is a need for symlinks within the pmu-events
* directory.
*
* For now, treat symlinks of JSON files as regular files and create
* separate tables for each symlink (presumably, each symlink refers
* to specific version of the CPU).
*/
maxfds = get_maxfds();
mapfile = NULL;
rc = nftw(ldirname, process_one_file, maxfds, 0);
if (rc && verbose) {
pr_info("%s: Error walking file tree %s\n", prog, ldirname);
goto empty_map;
} else if (rc < 0) {
/* Make build fail */
return 1;
} else if (rc) {
goto empty_map;
}
if (close_table)
print_events_table_suffix(eventsfp);
if (!mapfile) {
pr_info("%s: No CPU->JSON mapping?\n", prog);
goto empty_map;
}
if (process_mapfile(eventsfp, mapfile)) {
pr_info("%s: Error processing mapfile %s\n", prog, mapfile);
/* Make build fail */
return 1;
}
return 0;
empty_map:
fclose(eventsfp);
create_empty_mapping(output_file);
return 0;
}
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