1 #define _XOPEN_SOURCE 500 /* needed for nftw() */
2 #define _GNU_SOURCE /* needed for asprintf() */
4 /* Parse event JSON files */
7 * Copyright (c) 2014, Intel Corporation
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions are met:
13 * 1. Redistributions of source code must retain the above copyright notice,
14 * this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
29 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
31 * OF THE POSSIBILITY OF SUCH DAMAGE.
44 #include <sys/time.h> /* getrlimit */
45 #include <sys/resource.h> /* getrlimit */
48 #include <linux/list.h>
56 int eprintf(int level, int var, const char *fmt, ...)
67 ret = vfprintf(stderr, fmt, args);
74 __attribute__((weak)) char *get_cpu_str(void)
79 static void addfield(char *map, char **dst, const char *sep,
80 const char *a, jsmntok_t *bt)
82 unsigned int len = strlen(a) + 1 + strlen(sep);
83 int olen = *dst ? strlen(*dst) : 0;
84 int blen = bt ? json_len(bt) : 0;
87 out = realloc(*dst, len + olen + blen);
89 /* Don't add field in this case */
100 strncat(*dst, map + bt->start, blen);
103 static void fixname(char *s)
109 static void fixdesc(char *s)
111 char *e = s + strlen(s);
113 /* Remove trailing dots that look ugly in perf list */
115 while (e >= s && isspace(*e))
121 /* Add escapes for '\' so they are proper C strings. */
122 static char *fixregex(char *s)
129 /* Count the number of '\' in string */
130 for (p = s; *p; p++) {
139 /* allocate space for a new string */
140 fixed = (char *) malloc(len + 1);
144 /* copy over the characters */
146 for (p = s; *p; p++) {
158 static struct msrmap {
162 { "0x3F6", "ldlat=" },
163 { "0x1A6", "offcore_rsp=" },
164 { "0x1A7", "offcore_rsp=" },
165 { "0x3F7", "frontend=" },
169 static struct field {
173 { "UMask", "umask=" },
174 { "CounterMask", "cmask=" },
175 { "Invert", "inv=" },
176 { "AnyThread", "any=" },
177 { "EdgeDetect", "edge=" },
178 { "SampleAfterValue", "period=" },
179 { "FCMask", "fc_mask=" },
180 { "PortMask", "ch_mask=" },
184 static void cut_comma(char *map, jsmntok_t *newval)
188 /* Cut off everything after comma */
189 for (i = newval->start; i < newval->end; i++) {
195 static int match_field(char *map, jsmntok_t *field, int nz,
196 char **event, jsmntok_t *val)
199 jsmntok_t newval = *val;
201 for (f = fields; f->field; f++)
202 if (json_streq(map, field, f->field) && nz) {
203 cut_comma(map, &newval);
204 addfield(map, event, ",", f->kernel, &newval);
210 static struct msrmap *lookup_msr(char *map, jsmntok_t *val)
212 jsmntok_t newval = *val;
216 cut_comma(map, &newval);
217 for (i = 0; msrmap[i].num; i++)
218 if (json_streq(map, &newval, msrmap[i].num))
222 pr_err("%s: Unknown MSR in event file %.*s\n", prog,
223 json_len(val), map + val->start);
232 { "CBO", "uncore_cbox" },
233 { "QPI LL", "uncore_qpi" },
234 { "SBO", "uncore_sbox" },
235 { "iMPH-U", "uncore_arb" },
236 { "CPU-M-CF", "cpum_cf" },
237 { "CPU-M-SF", "cpum_sf" },
238 { "UPI LL", "uncore_upi" },
239 { "hisi_sccl,ddrc", "hisi_sccl,ddrc" },
240 { "hisi_sccl,hha", "hisi_sccl,hha" },
241 { "hisi_sccl,l3c", "hisi_sccl,l3c" },
242 { "L3PMC", "amd_l3" },
246 static const char *field_to_perf(struct map *table, char *map, jsmntok_t *val)
250 for (i = 0; table[i].json; i++) {
251 if (json_streq(map, val, table[i].json))
252 return table[i].perf;
257 #define EXPECT(e, t, m) do { if (!(e)) { \
258 jsmntok_t *loc = (t); \
259 if (!(t)->start && (t) > tokens) \
261 pr_err("%s:%d: " m ", got %s\n", fn, \
262 json_line(map, loc), \
270 static char *get_topic(void)
275 /* tp is free'd in process_one_file() */
276 i = asprintf(&tp, "%s", topic);
278 pr_info("%s: asprintf() error %s\n", prog);
282 for (i = 0; i < (int) strlen(tp); i++) {
296 static int add_topic(char *bname)
299 topic = strdup(bname);
301 pr_info("%s: strdup() error %s for file %s\n", prog,
302 strerror(errno), bname);
308 struct perf_entry_data {
313 static int close_table;
315 static void print_events_table_prefix(FILE *fp, const char *tblname)
317 fprintf(fp, "struct pmu_event %s[] = {\n", tblname);
321 static int print_events_table_entry(void *data, char *name, char *event,
322 char *desc, char *long_desc,
323 char *pmu, char *unit, char *perpkg,
325 char *metric_name, char *metric_group,
328 struct perf_entry_data *pd = data;
329 FILE *outfp = pd->outfp;
330 char *topic = pd->topic;
333 * TODO: Remove formatting chars after debugging to reduce
336 fprintf(outfp, "{\n");
339 fprintf(outfp, "\t.name = \"%s\",\n", name);
341 fprintf(outfp, "\t.event = \"%s\",\n", event);
342 fprintf(outfp, "\t.desc = \"%s\",\n", desc);
343 fprintf(outfp, "\t.topic = \"%s\",\n", topic);
344 if (long_desc && long_desc[0])
345 fprintf(outfp, "\t.long_desc = \"%s\",\n", long_desc);
347 fprintf(outfp, "\t.pmu = \"%s\",\n", pmu);
349 fprintf(outfp, "\t.unit = \"%s\",\n", unit);
351 fprintf(outfp, "\t.perpkg = \"%s\",\n", perpkg);
353 fprintf(outfp, "\t.metric_expr = \"%s\",\n", metric_expr);
355 fprintf(outfp, "\t.metric_name = \"%s\",\n", metric_name);
357 fprintf(outfp, "\t.metric_group = \"%s\",\n", metric_group);
359 fprintf(outfp, "\t.deprecated = \"%s\",\n", deprecated);
360 fprintf(outfp, "},\n");
365 struct event_struct {
366 struct list_head list;
380 #define ADD_EVENT_FIELD(field) do { if (field) { \
381 es->field = strdup(field); \
386 #define FREE_EVENT_FIELD(field) free(es->field)
388 #define TRY_FIXUP_FIELD(field) do { if (es->field && !*field) {\
389 *field = strdup(es->field); \
394 #define FOR_ALL_EVENT_STRUCT_FIELDS(op) do { \
408 static LIST_HEAD(arch_std_events);
410 static void free_arch_std_events(void)
412 struct event_struct *es, *next;
414 list_for_each_entry_safe(es, next, &arch_std_events, list) {
415 FOR_ALL_EVENT_STRUCT_FIELDS(FREE_EVENT_FIELD);
416 list_del_init(&es->list);
421 static int save_arch_std_events(void *data, char *name, char *event,
422 char *desc, char *long_desc, char *pmu,
423 char *unit, char *perpkg, char *metric_expr,
424 char *metric_name, char *metric_group,
427 struct event_struct *es;
429 es = malloc(sizeof(*es));
432 memset(es, 0, sizeof(*es));
433 FOR_ALL_EVENT_STRUCT_FIELDS(ADD_EVENT_FIELD);
434 list_add_tail(&es->list, &arch_std_events);
437 FOR_ALL_EVENT_STRUCT_FIELDS(FREE_EVENT_FIELD);
442 static void print_events_table_suffix(FILE *outfp)
444 fprintf(outfp, "{\n");
446 fprintf(outfp, "\t.name = 0,\n");
447 fprintf(outfp, "\t.event = 0,\n");
448 fprintf(outfp, "\t.desc = 0,\n");
450 fprintf(outfp, "},\n");
451 fprintf(outfp, "};\n");
455 static struct fixed {
459 { "inst_retired.any", "event=0xc0,period=2000003" },
460 { "inst_retired.any_p", "event=0xc0,period=2000003" },
461 { "cpu_clk_unhalted.ref", "event=0x0,umask=0x03,period=2000003" },
462 { "cpu_clk_unhalted.thread", "event=0x3c,period=2000003" },
463 { "cpu_clk_unhalted.core", "event=0x3c,period=2000003" },
464 { "cpu_clk_unhalted.thread_any", "event=0x3c,any=1,period=2000003" },
469 * Handle different fixed counter encodings between JSON and perf.
471 static char *real_event(const char *name, char *event)
478 for (i = 0; fixed[i].name; i++)
479 if (!strcasecmp(name, fixed[i].name))
480 return (char *)fixed[i].event;
485 try_fixup(const char *fn, char *arch_std, char **event, char **desc,
486 char **name, char **long_desc, char **pmu, char **filter,
487 char **perpkg, char **unit, char **metric_expr, char **metric_name,
488 char **metric_group, unsigned long long eventcode,
491 /* try to find matching event from arch standard values */
492 struct event_struct *es;
494 list_for_each_entry(es, &arch_std_events, list) {
495 if (!strcmp(arch_std, es->name)) {
496 if (!eventcode && es->event) {
497 /* allow EventCode to be overridden */
501 FOR_ALL_EVENT_STRUCT_FIELDS(TRY_FIXUP_FIELD);
506 pr_err("%s: could not find matching %s for %s\n",
511 /* Call func with each event in the json file */
512 int json_events(const char *fn,
513 int (*func)(void *data, char *name, char *event, char *desc,
515 char *pmu, char *unit, char *perpkg,
517 char *metric_name, char *metric_group,
523 jsmntok_t *tokens, *tok;
531 tokens = parse_json(fn, &map, &size, &len);
534 EXPECT(tokens->type == JSMN_ARRAY, tokens, "expected top level array");
536 for (i = 0; i < tokens->size; i++) {
537 char *event = NULL, *desc = NULL, *name = NULL;
538 char *long_desc = NULL;
539 char *extra_desc = NULL;
544 char *metric_expr = NULL;
545 char *metric_name = NULL;
546 char *metric_group = NULL;
547 char *deprecated = NULL;
548 char *arch_std = NULL;
549 unsigned long long eventcode = 0;
550 struct msrmap *msr = NULL;
551 jsmntok_t *msrval = NULL;
552 jsmntok_t *precise = NULL;
553 jsmntok_t *obj = tok++;
555 EXPECT(obj->type == JSMN_OBJECT, obj, "expected object");
556 for (j = 0; j < obj->size; j += 2) {
557 jsmntok_t *field, *val;
562 EXPECT(field->type == JSMN_STRING, tok + j,
563 "Expected field name");
565 EXPECT(val->type == JSMN_STRING, tok + j + 1,
566 "Expected string value");
568 nz = !json_streq(map, val, "0");
569 if (match_field(map, field, nz, &event, val)) {
571 } else if (json_streq(map, field, "EventCode")) {
573 addfield(map, &code, "", "", val);
574 eventcode |= strtoul(code, NULL, 0);
576 } else if (json_streq(map, field, "ExtSel")) {
578 addfield(map, &code, "", "", val);
579 eventcode |= strtoul(code, NULL, 0) << 21;
581 } else if (json_streq(map, field, "EventName")) {
582 addfield(map, &name, "", "", val);
583 } else if (json_streq(map, field, "BriefDescription")) {
584 addfield(map, &desc, "", "", val);
586 } else if (json_streq(map, field,
587 "PublicDescription")) {
588 addfield(map, &long_desc, "", "", val);
590 } else if (json_streq(map, field, "PEBS") && nz) {
592 } else if (json_streq(map, field, "MSRIndex") && nz) {
593 msr = lookup_msr(map, val);
594 } else if (json_streq(map, field, "MSRValue")) {
596 } else if (json_streq(map, field, "Errata") &&
597 !json_streq(map, val, "null")) {
598 addfield(map, &extra_desc, ". ",
599 " Spec update: ", val);
600 } else if (json_streq(map, field, "Data_LA") && nz) {
601 addfield(map, &extra_desc, ". ",
602 " Supports address when precise",
604 } else if (json_streq(map, field, "Unit")) {
607 ppmu = field_to_perf(unit_to_pmu, map, val);
612 pmu = strdup("uncore_");
613 addfield(map, &pmu, "", "", val);
614 for (s = pmu; *s; s++)
617 addfield(map, &desc, ". ", "Unit: ", NULL);
618 addfield(map, &desc, "", pmu, NULL);
619 addfield(map, &desc, "", " ", NULL);
620 } else if (json_streq(map, field, "Filter")) {
621 addfield(map, &filter, "", "", val);
622 } else if (json_streq(map, field, "ScaleUnit")) {
623 addfield(map, &unit, "", "", val);
624 } else if (json_streq(map, field, "PerPkg")) {
625 addfield(map, &perpkg, "", "", val);
626 } else if (json_streq(map, field, "Deprecated")) {
627 addfield(map, &deprecated, "", "", val);
628 } else if (json_streq(map, field, "MetricName")) {
629 addfield(map, &metric_name, "", "", val);
630 } else if (json_streq(map, field, "MetricGroup")) {
631 addfield(map, &metric_group, "", "", val);
632 } else if (json_streq(map, field, "MetricExpr")) {
633 addfield(map, &metric_expr, "", "", val);
634 for (s = metric_expr; *s; s++)
636 } else if (json_streq(map, field, "ArchStdEvent")) {
637 addfield(map, &arch_std, "", "", val);
638 for (s = arch_std; *s; s++)
641 /* ignore unknown fields */
643 if (precise && desc && !strstr(desc, "(Precise Event)")) {
644 if (json_streq(map, precise, "2"))
645 addfield(map, &extra_desc, " ",
646 "(Must be precise)", NULL);
648 addfield(map, &extra_desc, " ",
649 "(Precise event)", NULL);
651 snprintf(buf, sizeof buf, "event=%#llx", eventcode);
652 addfield(map, &event, ",", buf, NULL);
653 if (desc && extra_desc)
654 addfield(map, &desc, " ", extra_desc, NULL);
655 if (long_desc && extra_desc)
656 addfield(map, &long_desc, " ", extra_desc, NULL);
658 addfield(map, &event, ",", filter, NULL);
660 addfield(map, &event, ",", msr->pname, msrval);
666 * An arch standard event is referenced, so try to
667 * fixup any unassigned values.
669 err = try_fixup(fn, arch_std, &event, &desc, &name,
670 &long_desc, &pmu, &filter, &perpkg,
671 &unit, &metric_expr, &metric_name,
672 &metric_group, eventcode,
677 err = func(data, name, real_event(name, event), desc, long_desc,
678 pmu, unit, perpkg, metric_expr, metric_name,
679 metric_group, deprecated);
700 EXPECT(tok - tokens == len, tok, "unexpected objects at end");
703 free_json(map, size, tokens);
707 static char *file_name_to_table_name(char *fname)
715 * Ensure tablename starts with alphabetic character.
716 * Derive rest of table name from basename of the JSON file,
717 * replacing hyphens and stripping out .json suffix.
719 n = asprintf(&tblname, "pme_%s", fname);
721 pr_info("%s: asprintf() error %s for file %s\n", prog,
722 strerror(errno), fname);
726 for (i = 0; i < strlen(tblname); i++) {
729 if (c == '-' || c == '/')
734 } else if (!isalnum(c) && c != '_') {
735 pr_err("%s: Invalid character '%c' in file name %s\n",
736 prog, c, basename(fname));
746 static void print_mapping_table_prefix(FILE *outfp)
748 fprintf(outfp, "struct pmu_events_map pmu_events_map[] = {\n");
751 static void print_mapping_table_suffix(FILE *outfp)
754 * Print the terminating, NULL entry.
756 fprintf(outfp, "{\n");
757 fprintf(outfp, "\t.cpuid = 0,\n");
758 fprintf(outfp, "\t.version = 0,\n");
759 fprintf(outfp, "\t.type = 0,\n");
760 fprintf(outfp, "\t.table = 0,\n");
761 fprintf(outfp, "},\n");
763 /* and finally, the closing curly bracket for the struct */
764 fprintf(outfp, "};\n");
767 static int process_mapfile(FILE *outfp, char *fpath)
777 pr_info("%s: Processing mapfile %s\n", prog, fpath);
783 mapfp = fopen(fpath, "r");
785 pr_info("%s: Error %s opening %s\n", prog, strerror(errno),
791 print_mapping_table_prefix(outfp);
793 /* Skip first line (header) */
794 p = fgets(line, n, mapfp);
800 char *cpuid, *version, *type, *fname;
803 p = fgets(line, n, mapfp);
807 if (line[0] == '#' || line[0] == '\n')
810 if (line[strlen(line)-1] != '\n') {
811 /* TODO Deal with lines longer than 16K */
812 pr_info("%s: Mapfile %s: line %d too long, aborting\n",
813 prog, fpath, line_num);
817 line[strlen(line)-1] = '\0';
819 cpuid = fixregex(strtok_r(p, ",", &save));
820 version = strtok_r(NULL, ",", &save);
821 fname = strtok_r(NULL, ",", &save);
822 type = strtok_r(NULL, ",", &save);
824 tblname = file_name_to_table_name(fname);
825 fprintf(outfp, "{\n");
826 fprintf(outfp, "\t.cpuid = \"%s\",\n", cpuid);
827 fprintf(outfp, "\t.version = \"%s\",\n", version);
828 fprintf(outfp, "\t.type = \"%s\",\n", type);
831 * CHECK: We can't use the type (eg "core") field in the
832 * table name. For us to do that, we need to somehow tweak
833 * the other caller of file_name_to_table(), process_json()
834 * to determine the type. process_json() file has no way
835 * of knowing these are "core" events unless file name has
836 * core in it. If filename has core in it, we can safely
837 * ignore the type field here also.
839 fprintf(outfp, "\t.table = %s\n", tblname);
840 fprintf(outfp, "},\n");
844 print_mapping_table_suffix(outfp);
851 * If we fail to locate/process JSON and map files, create a NULL mapping
852 * table. This would at least allow perf to build even if we can't find/use
855 static void create_empty_mapping(const char *output_file)
859 pr_info("%s: Creating empty pmu_events_map[] table\n", prog);
861 /* Truncate file to clear any partial writes to it */
862 outfp = fopen(output_file, "w");
868 fprintf(outfp, "#include \"pmu-events/pmu-events.h\"\n");
869 print_mapping_table_prefix(outfp);
870 print_mapping_table_suffix(outfp);
874 static int get_maxfds(void)
878 if (getrlimit(RLIMIT_NOFILE, &rlim) == 0)
879 return min((int)rlim.rlim_max / 2, 512);
885 * nftw() doesn't let us pass an argument to the processing function,
886 * so use a global variables.
888 static FILE *eventsfp;
889 static char *mapfile;
891 static int is_leaf_dir(const char *fpath)
901 while ((dir = readdir(d)) != NULL) {
902 if (!strcmp(dir->d_name, ".") || !strcmp(dir->d_name, ".."))
905 if (dir->d_type == DT_DIR) {
908 } else if (dir->d_type == DT_UNKNOWN) {
912 sprintf(path, "%s/%s", fpath, dir->d_name);
916 if (S_ISDIR(st.st_mode)) {
928 static int is_json_file(const char *name)
932 if (strlen(name) < 5)
935 suffix = name + strlen(name) - 5;
937 if (strncmp(suffix, ".json", 5) == 0)
942 static int preprocess_arch_std_files(const char *fpath, const struct stat *sb,
943 int typeflag, struct FTW *ftwbuf)
945 int level = ftwbuf->level;
946 int is_file = typeflag == FTW_F;
948 if (level == 1 && is_file && is_json_file(fpath))
949 return json_events(fpath, save_arch_std_events, (void *)sb);
954 static int process_one_file(const char *fpath, const struct stat *sb,
955 int typeflag, struct FTW *ftwbuf)
957 char *tblname, *bname;
958 int is_dir = typeflag == FTW_D;
959 int is_file = typeflag == FTW_F;
960 int level = ftwbuf->level;
963 if (level == 2 && is_dir) {
965 * For level 2 directory, bname will include parent name,
966 * like vendor/platform. So search back from platform dir
969 bname = (char *) fpath + ftwbuf->base - 2;
977 bname = (char *) fpath + ftwbuf->base;
979 pr_debug("%s %d %7jd %-20s %s\n",
980 is_file ? "f" : is_dir ? "d" : "x",
981 level, sb->st_size, bname, fpath);
983 /* base dir or too deep */
984 if (level == 0 || level > 3)
988 /* model directory, reset topic */
989 if ((level == 1 && is_dir && is_leaf_dir(fpath)) ||
990 (level == 2 && is_dir)) {
992 print_events_table_suffix(eventsfp);
995 * Drop file name suffix. Replace hyphens with underscores.
996 * Fail if file name contains any alphanum characters besides
999 tblname = file_name_to_table_name(bname);
1001 pr_info("%s: Error determining table name for %s\n", prog,
1006 print_events_table_prefix(eventsfp, tblname);
1011 * Save the mapfile name for now. We will process mapfile
1012 * after processing all JSON files (so we can write out the
1013 * mapping table after all PMU events tables).
1016 if (level == 1 && is_file) {
1017 if (!strcmp(bname, "mapfile.csv")) {
1018 mapfile = strdup(fpath);
1022 pr_info("%s: Ignoring file %s\n", prog, fpath);
1027 * If the file name does not have a .json extension,
1028 * ignore it. It could be a readme.txt for instance.
1031 if (!is_json_file(bname)) {
1032 pr_info("%s: Ignoring file without .json suffix %s\n", prog,
1038 if (level > 1 && add_topic(bname))
1042 * Assume all other files are JSON files.
1044 * If mapfile refers to 'power7_core.json', we create a table
1045 * named 'power7_core'. Any inconsistencies between the mapfile
1046 * and directory tree could result in build failure due to table
1047 * names not being found.
1049 * Atleast for now, be strict with processing JSON file names.
1050 * i.e. if JSON file name cannot be mapped to C-style table name,
1054 struct perf_entry_data data = {
1055 .topic = get_topic(),
1059 err = json_events(fpath, print_events_table_entry, &data);
1068 #define PATH_MAX 4096
1072 * Starting in directory 'start_dirname', find the "mapfile.csv" and
1073 * the set of JSON files for the architecture 'arch'.
1075 * From each JSON file, create a C-style "PMU events table" from the
1076 * JSON file (see struct pmu_event).
1078 * From the mapfile, create a mapping between the CPU revisions and
1079 * PMU event tables (see struct pmu_events_map).
1081 * Write out the PMU events tables and the mapping table to pmu-event.c.
1083 int main(int argc, char *argv[])
1087 char ldirname[PATH_MAX];
1090 const char *output_file;
1091 const char *start_dirname;
1094 prog = basename(argv[0]);
1096 pr_err("Usage: %s <arch> <starting_dir> <output_file>\n", prog);
1101 start_dirname = argv[2];
1102 output_file = argv[3];
1105 verbose = atoi(argv[4]);
1107 eventsfp = fopen(output_file, "w");
1109 pr_err("%s Unable to create required file %s (%s)\n",
1110 prog, output_file, strerror(errno));
1114 sprintf(ldirname, "%s/%s", start_dirname, arch);
1116 /* If architecture does not have any event lists, bail out */
1117 if (stat(ldirname, &stbuf) < 0) {
1118 pr_info("%s: Arch %s has no PMU event lists\n", prog, arch);
1122 /* Include pmu-events.h first */
1123 fprintf(eventsfp, "#include \"pmu-events/pmu-events.h\"\n");
1126 * The mapfile allows multiple CPUids to point to the same JSON file,
1127 * so, not sure if there is a need for symlinks within the pmu-events
1130 * For now, treat symlinks of JSON files as regular files and create
1131 * separate tables for each symlink (presumably, each symlink refers
1132 * to specific version of the CPU).
1135 maxfds = get_maxfds();
1137 rc = nftw(ldirname, preprocess_arch_std_files, maxfds, 0);
1138 if (rc && verbose) {
1139 pr_info("%s: Error preprocessing arch standard files %s\n",
1142 } else if (rc < 0) {
1143 /* Make build fail */
1145 free_arch_std_events();
1151 rc = nftw(ldirname, process_one_file, maxfds, 0);
1152 if (rc && verbose) {
1153 pr_info("%s: Error walking file tree %s\n", prog, ldirname);
1155 } else if (rc < 0) {
1156 /* Make build fail */
1158 free_arch_std_events();
1165 print_events_table_suffix(eventsfp);
1168 pr_info("%s: No CPU->JSON mapping?\n", prog);
1172 if (process_mapfile(eventsfp, mapfile)) {
1173 pr_info("%s: Error processing mapfile %s\n", prog, mapfile);
1174 /* Make build fail */
1176 free_arch_std_events();
1184 create_empty_mapping(output_file);
1185 free_arch_std_events();