Commit | Line | Data |
---|---|---|
07800601 | 1 | /* |
5f9273d6 NK |
2 | * config.c |
3 | * | |
4 | * Helper functions for parsing config items. | |
5 | * Originally copied from GIT source. | |
07800601 IM |
6 | * |
7 | * Copyright (C) Linus Torvalds, 2005 | |
8 | * Copyright (C) Johannes Schindelin, 2005 | |
9 | * | |
10 | */ | |
11 | #include "util.h" | |
12 | #include "cache.h" | |
4b6ab94e | 13 | #include <subcmd/exec-cmd.h> |
0b93da17 | 14 | #include "util/hist.h" /* perf_hist_config */ |
aa61fd05 | 15 | #include "util/llvm-utils.h" /* perf_llvm_config */ |
20105ca1 | 16 | #include "config.h" |
07800601 IM |
17 | |
18 | #define MAXNAME (256) | |
19 | ||
45de34bb SE |
20 | #define DEBUG_CACHE_DIR ".debug" |
21 | ||
22 | ||
23 | char buildid_dir[MAXPATHLEN]; /* root dir for buildid, binary cache */ | |
24 | ||
07800601 IM |
25 | static FILE *config_file; |
26 | static const char *config_file_name; | |
27 | static int config_linenr; | |
28 | static int config_file_eof; | |
8a0a9c7e | 29 | static struct perf_config_set *config_set; |
07800601 | 30 | |
c7ac2417 | 31 | const char *config_exclusive_filename; |
07800601 IM |
32 | |
33 | static int get_next_char(void) | |
34 | { | |
35 | int c; | |
36 | FILE *f; | |
37 | ||
38 | c = '\n'; | |
39 | if ((f = config_file) != NULL) { | |
40 | c = fgetc(f); | |
41 | if (c == '\r') { | |
42 | /* DOS like systems */ | |
43 | c = fgetc(f); | |
44 | if (c != '\n') { | |
45 | ungetc(c, f); | |
46 | c = '\r'; | |
47 | } | |
48 | } | |
49 | if (c == '\n') | |
50 | config_linenr++; | |
51 | if (c == EOF) { | |
52 | config_file_eof = 1; | |
53 | c = '\n'; | |
54 | } | |
55 | } | |
56 | return c; | |
57 | } | |
58 | ||
59 | static char *parse_value(void) | |
60 | { | |
61 | static char value[1024]; | |
f37a291c IM |
62 | int quote = 0, comment = 0, space = 0; |
63 | size_t len = 0; | |
07800601 IM |
64 | |
65 | for (;;) { | |
66 | int c = get_next_char(); | |
f37a291c | 67 | |
07800601 IM |
68 | if (len >= sizeof(value) - 1) |
69 | return NULL; | |
70 | if (c == '\n') { | |
71 | if (quote) | |
72 | return NULL; | |
73 | value[len] = 0; | |
74 | return value; | |
75 | } | |
76 | if (comment) | |
77 | continue; | |
78 | if (isspace(c) && !quote) { | |
79 | space = 1; | |
80 | continue; | |
81 | } | |
82 | if (!quote) { | |
83 | if (c == ';' || c == '#') { | |
84 | comment = 1; | |
85 | continue; | |
86 | } | |
87 | } | |
88 | if (space) { | |
89 | if (len) | |
90 | value[len++] = ' '; | |
91 | space = 0; | |
92 | } | |
93 | if (c == '\\') { | |
94 | c = get_next_char(); | |
95 | switch (c) { | |
96 | case '\n': | |
97 | continue; | |
98 | case 't': | |
99 | c = '\t'; | |
100 | break; | |
101 | case 'b': | |
102 | c = '\b'; | |
103 | break; | |
104 | case 'n': | |
105 | c = '\n'; | |
106 | break; | |
107 | /* Some characters escape as themselves */ | |
108 | case '\\': case '"': | |
109 | break; | |
110 | /* Reject unknown escape sequences */ | |
111 | default: | |
112 | return NULL; | |
113 | } | |
114 | value[len++] = c; | |
115 | continue; | |
116 | } | |
117 | if (c == '"') { | |
118 | quote = 1-quote; | |
119 | continue; | |
120 | } | |
121 | value[len++] = c; | |
122 | } | |
123 | } | |
124 | ||
125 | static inline int iskeychar(int c) | |
126 | { | |
8dc7c651 | 127 | return isalnum(c) || c == '-' || c == '_'; |
07800601 IM |
128 | } |
129 | ||
130 | static int get_value(config_fn_t fn, void *data, char *name, unsigned int len) | |
131 | { | |
132 | int c; | |
133 | char *value; | |
134 | ||
135 | /* Get the full name */ | |
136 | for (;;) { | |
137 | c = get_next_char(); | |
138 | if (config_file_eof) | |
139 | break; | |
140 | if (!iskeychar(c)) | |
141 | break; | |
45de34bb | 142 | name[len++] = c; |
07800601 IM |
143 | if (len >= MAXNAME) |
144 | return -1; | |
145 | } | |
146 | name[len] = 0; | |
147 | while (c == ' ' || c == '\t') | |
148 | c = get_next_char(); | |
149 | ||
150 | value = NULL; | |
151 | if (c != '\n') { | |
152 | if (c != '=') | |
153 | return -1; | |
154 | value = parse_value(); | |
155 | if (!value) | |
156 | return -1; | |
157 | } | |
158 | return fn(name, value, data); | |
159 | } | |
160 | ||
161 | static int get_extended_base_var(char *name, int baselen, int c) | |
162 | { | |
163 | do { | |
164 | if (c == '\n') | |
165 | return -1; | |
166 | c = get_next_char(); | |
167 | } while (isspace(c)); | |
168 | ||
169 | /* We require the format to be '[base "extension"]' */ | |
170 | if (c != '"') | |
171 | return -1; | |
172 | name[baselen++] = '.'; | |
173 | ||
174 | for (;;) { | |
83a0944f IM |
175 | int ch = get_next_char(); |
176 | ||
177 | if (ch == '\n') | |
07800601 | 178 | return -1; |
83a0944f | 179 | if (ch == '"') |
07800601 | 180 | break; |
83a0944f IM |
181 | if (ch == '\\') { |
182 | ch = get_next_char(); | |
183 | if (ch == '\n') | |
07800601 IM |
184 | return -1; |
185 | } | |
83a0944f | 186 | name[baselen++] = ch; |
07800601 IM |
187 | if (baselen > MAXNAME / 2) |
188 | return -1; | |
189 | } | |
190 | ||
191 | /* Final ']' */ | |
192 | if (get_next_char() != ']') | |
193 | return -1; | |
194 | return baselen; | |
195 | } | |
196 | ||
197 | static int get_base_var(char *name) | |
198 | { | |
199 | int baselen = 0; | |
200 | ||
201 | for (;;) { | |
202 | int c = get_next_char(); | |
203 | if (config_file_eof) | |
204 | return -1; | |
205 | if (c == ']') | |
206 | return baselen; | |
207 | if (isspace(c)) | |
208 | return get_extended_base_var(name, baselen, c); | |
209 | if (!iskeychar(c) && c != '.') | |
210 | return -1; | |
211 | if (baselen > MAXNAME / 2) | |
212 | return -1; | |
213 | name[baselen++] = tolower(c); | |
214 | } | |
215 | } | |
216 | ||
217 | static int perf_parse_file(config_fn_t fn, void *data) | |
218 | { | |
219 | int comment = 0; | |
220 | int baselen = 0; | |
221 | static char var[MAXNAME]; | |
222 | ||
223 | /* U+FEFF Byte Order Mark in UTF8 */ | |
224 | static const unsigned char *utf8_bom = (unsigned char *) "\xef\xbb\xbf"; | |
225 | const unsigned char *bomptr = utf8_bom; | |
226 | ||
227 | for (;;) { | |
49757c9c JO |
228 | int line, c = get_next_char(); |
229 | ||
07800601 IM |
230 | if (bomptr && *bomptr) { |
231 | /* We are at the file beginning; skip UTF8-encoded BOM | |
232 | * if present. Sane editors won't put this in on their | |
233 | * own, but e.g. Windows Notepad will do it happily. */ | |
234 | if ((unsigned char) c == *bomptr) { | |
235 | bomptr++; | |
236 | continue; | |
237 | } else { | |
238 | /* Do not tolerate partial BOM. */ | |
239 | if (bomptr != utf8_bom) | |
240 | break; | |
241 | /* No BOM at file beginning. Cool. */ | |
242 | bomptr = NULL; | |
243 | } | |
244 | } | |
245 | if (c == '\n') { | |
246 | if (config_file_eof) | |
247 | return 0; | |
248 | comment = 0; | |
249 | continue; | |
250 | } | |
251 | if (comment || isspace(c)) | |
252 | continue; | |
253 | if (c == '#' || c == ';') { | |
254 | comment = 1; | |
255 | continue; | |
256 | } | |
257 | if (c == '[') { | |
258 | baselen = get_base_var(var); | |
259 | if (baselen <= 0) | |
260 | break; | |
261 | var[baselen++] = '.'; | |
262 | var[baselen] = 0; | |
263 | continue; | |
264 | } | |
265 | if (!isalpha(c)) | |
266 | break; | |
267 | var[baselen] = tolower(c); | |
49757c9c JO |
268 | |
269 | /* | |
270 | * The get_value function might or might not reach the '\n', | |
271 | * so saving the current line number for error reporting. | |
272 | */ | |
273 | line = config_linenr; | |
274 | if (get_value(fn, data, var, baselen+1) < 0) { | |
275 | config_linenr = line; | |
07800601 | 276 | break; |
49757c9c | 277 | } |
07800601 | 278 | } |
78f71c99 TS |
279 | pr_err("bad config file line %d in %s\n", config_linenr, config_file_name); |
280 | return -1; | |
07800601 IM |
281 | } |
282 | ||
283 | static int parse_unit_factor(const char *end, unsigned long *val) | |
284 | { | |
285 | if (!*end) | |
286 | return 1; | |
287 | else if (!strcasecmp(end, "k")) { | |
288 | *val *= 1024; | |
289 | return 1; | |
290 | } | |
291 | else if (!strcasecmp(end, "m")) { | |
292 | *val *= 1024 * 1024; | |
293 | return 1; | |
294 | } | |
295 | else if (!strcasecmp(end, "g")) { | |
296 | *val *= 1024 * 1024 * 1024; | |
297 | return 1; | |
298 | } | |
299 | return 0; | |
300 | } | |
301 | ||
94c0655f JO |
302 | static int perf_parse_llong(const char *value, long long *ret) |
303 | { | |
304 | if (value && *value) { | |
305 | char *end; | |
306 | long long val = strtoll(value, &end, 0); | |
307 | unsigned long factor = 1; | |
308 | ||
309 | if (!parse_unit_factor(end, &factor)) | |
310 | return 0; | |
311 | *ret = val * factor; | |
312 | return 1; | |
313 | } | |
314 | return 0; | |
315 | } | |
316 | ||
07800601 IM |
317 | static int perf_parse_long(const char *value, long *ret) |
318 | { | |
319 | if (value && *value) { | |
320 | char *end; | |
321 | long val = strtol(value, &end, 0); | |
322 | unsigned long factor = 1; | |
323 | if (!parse_unit_factor(end, &factor)) | |
324 | return 0; | |
325 | *ret = val * factor; | |
326 | return 1; | |
327 | } | |
328 | return 0; | |
329 | } | |
330 | ||
07800601 IM |
331 | static void die_bad_config(const char *name) |
332 | { | |
333 | if (config_file_name) | |
334 | die("bad config value for '%s' in %s", name, config_file_name); | |
335 | die("bad config value for '%s'", name); | |
336 | } | |
337 | ||
94c0655f JO |
338 | u64 perf_config_u64(const char *name, const char *value) |
339 | { | |
340 | long long ret = 0; | |
341 | ||
342 | if (!perf_parse_llong(value, &ret)) | |
343 | die_bad_config(name); | |
344 | return (u64) ret; | |
345 | } | |
346 | ||
07800601 IM |
347 | int perf_config_int(const char *name, const char *value) |
348 | { | |
349 | long ret = 0; | |
350 | if (!perf_parse_long(value, &ret)) | |
351 | die_bad_config(name); | |
352 | return ret; | |
353 | } | |
354 | ||
a41794cd | 355 | static int perf_config_bool_or_int(const char *name, const char *value, int *is_bool) |
07800601 IM |
356 | { |
357 | *is_bool = 1; | |
358 | if (!value) | |
359 | return 1; | |
360 | if (!*value) | |
361 | return 0; | |
362 | if (!strcasecmp(value, "true") || !strcasecmp(value, "yes") || !strcasecmp(value, "on")) | |
363 | return 1; | |
364 | if (!strcasecmp(value, "false") || !strcasecmp(value, "no") || !strcasecmp(value, "off")) | |
365 | return 0; | |
366 | *is_bool = 0; | |
367 | return perf_config_int(name, value); | |
368 | } | |
369 | ||
370 | int perf_config_bool(const char *name, const char *value) | |
371 | { | |
372 | int discard; | |
373 | return !!perf_config_bool_or_int(name, value, &discard); | |
374 | } | |
375 | ||
814b3f51 | 376 | static const char *perf_config_dirname(const char *name, const char *value) |
45de34bb SE |
377 | { |
378 | if (!name) | |
379 | return NULL; | |
380 | return value; | |
381 | } | |
382 | ||
9cb5987c TS |
383 | static int perf_buildid_config(const char *var, const char *value) |
384 | { | |
385 | /* same dir for all commands */ | |
386 | if (!strcmp(var, "buildid.dir")) { | |
d8e28654 | 387 | const char *dir = perf_config_dirname(var, value); |
9cb5987c | 388 | |
d8e28654 | 389 | if (!dir) |
9cb5987c | 390 | return -1; |
d8e28654 | 391 | strncpy(buildid_dir, dir, MAXPATHLEN-1); |
9cb5987c TS |
392 | buildid_dir[MAXPATHLEN-1] = '\0'; |
393 | } | |
394 | ||
395 | return 0; | |
396 | } | |
397 | ||
1d037ca1 IT |
398 | static int perf_default_core_config(const char *var __maybe_unused, |
399 | const char *value __maybe_unused) | |
07800601 | 400 | { |
395cf969 | 401 | /* Add other config variables here. */ |
07800601 IM |
402 | return 0; |
403 | } | |
404 | ||
c8302367 JO |
405 | static int perf_ui_config(const char *var, const char *value) |
406 | { | |
407 | /* Add other config variables here. */ | |
408 | if (!strcmp(var, "ui.show-headers")) { | |
409 | symbol_conf.show_hist_headers = perf_config_bool(var, value); | |
410 | return 0; | |
411 | } | |
412 | return 0; | |
413 | } | |
414 | ||
1d037ca1 IT |
415 | int perf_default_config(const char *var, const char *value, |
416 | void *dummy __maybe_unused) | |
07800601 IM |
417 | { |
418 | if (!prefixcmp(var, "core.")) | |
419 | return perf_default_core_config(var, value); | |
420 | ||
0b93da17 NK |
421 | if (!prefixcmp(var, "hist.")) |
422 | return perf_hist_config(var, value); | |
423 | ||
c8302367 JO |
424 | if (!prefixcmp(var, "ui.")) |
425 | return perf_ui_config(var, value); | |
426 | ||
2b9240ca NK |
427 | if (!prefixcmp(var, "call-graph.")) |
428 | return perf_callchain_config(var, value); | |
429 | ||
aa61fd05 WN |
430 | if (!prefixcmp(var, "llvm.")) |
431 | return perf_llvm_config(var, value); | |
432 | ||
9cb5987c TS |
433 | if (!prefixcmp(var, "buildid.")) |
434 | return perf_buildid_config(var, value); | |
435 | ||
395cf969 | 436 | /* Add other config variables here. */ |
07800601 IM |
437 | return 0; |
438 | } | |
439 | ||
a41794cd | 440 | static int perf_config_from_file(config_fn_t fn, const char *filename, void *data) |
07800601 IM |
441 | { |
442 | int ret; | |
443 | FILE *f = fopen(filename, "r"); | |
444 | ||
445 | ret = -1; | |
446 | if (f) { | |
447 | config_file = f; | |
448 | config_file_name = filename; | |
449 | config_linenr = 1; | |
450 | config_file_eof = 0; | |
451 | ret = perf_parse_file(fn, data); | |
452 | fclose(f); | |
453 | config_file_name = NULL; | |
454 | } | |
455 | return ret; | |
456 | } | |
457 | ||
c7ac2417 | 458 | const char *perf_etc_perfconfig(void) |
07800601 IM |
459 | { |
460 | static const char *system_wide; | |
461 | if (!system_wide) | |
462 | system_wide = system_path(ETC_PERFCONFIG); | |
463 | return system_wide; | |
464 | } | |
465 | ||
466 | static int perf_env_bool(const char *k, int def) | |
467 | { | |
468 | const char *v = getenv(k); | |
469 | return v ? perf_config_bool(k, v) : def; | |
470 | } | |
471 | ||
a41794cd | 472 | static int perf_config_system(void) |
07800601 IM |
473 | { |
474 | return !perf_env_bool("PERF_CONFIG_NOSYSTEM", 0); | |
475 | } | |
476 | ||
a41794cd | 477 | static int perf_config_global(void) |
07800601 IM |
478 | { |
479 | return !perf_env_bool("PERF_CONFIG_NOGLOBAL", 0); | |
480 | } | |
481 | ||
20105ca1 TS |
482 | static struct perf_config_section *find_section(struct list_head *sections, |
483 | const char *section_name) | |
484 | { | |
485 | struct perf_config_section *section; | |
486 | ||
487 | list_for_each_entry(section, sections, node) | |
488 | if (!strcmp(section->name, section_name)) | |
489 | return section; | |
490 | ||
491 | return NULL; | |
492 | } | |
493 | ||
494 | static struct perf_config_item *find_config_item(const char *name, | |
495 | struct perf_config_section *section) | |
496 | { | |
497 | struct perf_config_item *item; | |
498 | ||
499 | list_for_each_entry(item, §ion->items, node) | |
500 | if (!strcmp(item->name, name)) | |
501 | return item; | |
502 | ||
503 | return NULL; | |
504 | } | |
505 | ||
506 | static struct perf_config_section *add_section(struct list_head *sections, | |
507 | const char *section_name) | |
508 | { | |
509 | struct perf_config_section *section = zalloc(sizeof(*section)); | |
510 | ||
511 | if (!section) | |
512 | return NULL; | |
513 | ||
514 | INIT_LIST_HEAD(§ion->items); | |
515 | section->name = strdup(section_name); | |
516 | if (!section->name) { | |
517 | pr_debug("%s: strdup failed\n", __func__); | |
518 | free(section); | |
519 | return NULL; | |
520 | } | |
521 | ||
522 | list_add_tail(§ion->node, sections); | |
523 | return section; | |
524 | } | |
525 | ||
526 | static struct perf_config_item *add_config_item(struct perf_config_section *section, | |
527 | const char *name) | |
528 | { | |
529 | struct perf_config_item *item = zalloc(sizeof(*item)); | |
530 | ||
531 | if (!item) | |
532 | return NULL; | |
533 | ||
534 | item->name = strdup(name); | |
535 | if (!item->name) { | |
536 | pr_debug("%s: strdup failed\n", __func__); | |
537 | free(item); | |
538 | return NULL; | |
539 | } | |
540 | ||
541 | list_add_tail(&item->node, §ion->items); | |
542 | return item; | |
543 | } | |
544 | ||
545 | static int set_value(struct perf_config_item *item, const char *value) | |
546 | { | |
547 | char *val = strdup(value); | |
548 | ||
549 | if (!val) | |
550 | return -1; | |
551 | ||
552 | zfree(&item->value); | |
553 | item->value = val; | |
554 | return 0; | |
555 | } | |
556 | ||
557 | static int collect_config(const char *var, const char *value, | |
558 | void *perf_config_set) | |
559 | { | |
560 | int ret = -1; | |
561 | char *ptr, *key; | |
562 | char *section_name, *name; | |
563 | struct perf_config_section *section = NULL; | |
564 | struct perf_config_item *item = NULL; | |
565 | struct perf_config_set *set = perf_config_set; | |
7db91f25 | 566 | struct list_head *sections; |
20105ca1 | 567 | |
7db91f25 TS |
568 | if (set == NULL) |
569 | return -1; | |
570 | ||
571 | sections = &set->sections; | |
20105ca1 TS |
572 | key = ptr = strdup(var); |
573 | if (!key) { | |
574 | pr_debug("%s: strdup failed\n", __func__); | |
575 | return -1; | |
576 | } | |
577 | ||
578 | section_name = strsep(&ptr, "."); | |
579 | name = ptr; | |
580 | if (name == NULL || value == NULL) | |
581 | goto out_free; | |
582 | ||
583 | section = find_section(sections, section_name); | |
584 | if (!section) { | |
585 | section = add_section(sections, section_name); | |
586 | if (!section) | |
587 | goto out_free; | |
588 | } | |
589 | ||
590 | item = find_config_item(name, section); | |
591 | if (!item) { | |
592 | item = add_config_item(section, name); | |
593 | if (!item) | |
594 | goto out_free; | |
595 | } | |
596 | ||
597 | ret = set_value(item, value); | |
598 | return ret; | |
599 | ||
600 | out_free: | |
601 | free(key); | |
20105ca1 TS |
602 | return -1; |
603 | } | |
604 | ||
8beeb00f TS |
605 | static int perf_config_set__init(struct perf_config_set *set) |
606 | { | |
607 | int ret = -1; | |
608 | const char *home = NULL; | |
609 | ||
610 | /* Setting $PERF_CONFIG makes perf read _only_ the given config file. */ | |
611 | if (config_exclusive_filename) | |
612 | return perf_config_from_file(collect_config, config_exclusive_filename, set); | |
613 | if (perf_config_system() && !access(perf_etc_perfconfig(), R_OK)) { | |
614 | if (perf_config_from_file(collect_config, perf_etc_perfconfig(), set) < 0) | |
615 | goto out; | |
616 | } | |
617 | ||
618 | home = getenv("HOME"); | |
619 | if (perf_config_global() && home) { | |
620 | char *user_config = strdup(mkpath("%s/.perfconfig", home)); | |
621 | struct stat st; | |
622 | ||
623 | if (user_config == NULL) { | |
624 | warning("Not enough memory to process %s/.perfconfig, " | |
625 | "ignoring it.", home); | |
626 | goto out; | |
627 | } | |
628 | ||
629 | if (stat(user_config, &st) < 0) | |
630 | goto out_free; | |
631 | ||
632 | if (st.st_uid && (st.st_uid != geteuid())) { | |
633 | warning("File %s not owned by current user or root, " | |
634 | "ignoring it.", user_config); | |
635 | goto out_free; | |
636 | } | |
637 | ||
638 | if (!st.st_size) | |
639 | goto out_free; | |
640 | ||
641 | ret = perf_config_from_file(collect_config, user_config, set); | |
642 | ||
643 | out_free: | |
644 | free(user_config); | |
645 | } | |
646 | out: | |
647 | return ret; | |
648 | } | |
649 | ||
20105ca1 TS |
650 | struct perf_config_set *perf_config_set__new(void) |
651 | { | |
652 | struct perf_config_set *set = zalloc(sizeof(*set)); | |
653 | ||
654 | if (set) { | |
655 | INIT_LIST_HEAD(&set->sections); | |
8beeb00f | 656 | if (perf_config_set__init(set) < 0) { |
25d8f48f TS |
657 | perf_config_set__delete(set); |
658 | set = NULL; | |
659 | } | |
20105ca1 TS |
660 | } |
661 | ||
662 | return set; | |
663 | } | |
664 | ||
8a0a9c7e TS |
665 | int perf_config(config_fn_t fn, void *data) |
666 | { | |
667 | int ret = 0; | |
668 | char key[BUFSIZ]; | |
669 | struct perf_config_section *section; | |
670 | struct perf_config_item *item; | |
671 | ||
672 | if (config_set == NULL) | |
673 | return -1; | |
674 | ||
675 | perf_config_set__for_each_entry(config_set, section, item) { | |
676 | char *value = item->value; | |
677 | ||
678 | if (value) { | |
679 | scnprintf(key, sizeof(key), "%s.%s", | |
680 | section->name, item->name); | |
681 | ret = fn(key, value, data); | |
682 | if (ret < 0) { | |
683 | pr_err("Error: wrong config key-value pair %s=%s\n", | |
684 | key, value); | |
685 | break; | |
686 | } | |
687 | } | |
688 | } | |
689 | ||
690 | return ret; | |
691 | } | |
692 | ||
693 | void perf_config__init(void) | |
694 | { | |
695 | if (config_set == NULL) | |
696 | config_set = perf_config_set__new(); | |
697 | } | |
698 | ||
699 | void perf_config__exit(void) | |
700 | { | |
701 | perf_config_set__delete(config_set); | |
702 | config_set = NULL; | |
703 | } | |
704 | ||
705 | void perf_config__refresh(void) | |
706 | { | |
707 | perf_config__exit(); | |
708 | perf_config__init(); | |
709 | } | |
710 | ||
20105ca1 TS |
711 | static void perf_config_item__delete(struct perf_config_item *item) |
712 | { | |
713 | zfree(&item->name); | |
714 | zfree(&item->value); | |
715 | free(item); | |
716 | } | |
717 | ||
718 | static void perf_config_section__purge(struct perf_config_section *section) | |
719 | { | |
720 | struct perf_config_item *item, *tmp; | |
721 | ||
722 | list_for_each_entry_safe(item, tmp, §ion->items, node) { | |
723 | list_del_init(&item->node); | |
724 | perf_config_item__delete(item); | |
725 | } | |
726 | } | |
727 | ||
728 | static void perf_config_section__delete(struct perf_config_section *section) | |
729 | { | |
730 | perf_config_section__purge(section); | |
731 | zfree(§ion->name); | |
732 | free(section); | |
733 | } | |
734 | ||
735 | static void perf_config_set__purge(struct perf_config_set *set) | |
736 | { | |
737 | struct perf_config_section *section, *tmp; | |
738 | ||
739 | list_for_each_entry_safe(section, tmp, &set->sections, node) { | |
740 | list_del_init(§ion->node); | |
741 | perf_config_section__delete(section); | |
742 | } | |
743 | } | |
744 | ||
745 | void perf_config_set__delete(struct perf_config_set *set) | |
746 | { | |
826424cc TS |
747 | if (set == NULL) |
748 | return; | |
749 | ||
20105ca1 TS |
750 | perf_config_set__purge(set); |
751 | free(set); | |
752 | } | |
753 | ||
07800601 IM |
754 | /* |
755 | * Call this to report error for your variable that should not | |
756 | * get a boolean value (i.e. "[my] var" means "true"). | |
757 | */ | |
758 | int config_error_nonbool(const char *var) | |
759 | { | |
760 | return error("Missing value for '%s'", var); | |
761 | } | |
45de34bb | 762 | |
99ce8e9f | 763 | void set_buildid_dir(const char *dir) |
45de34bb | 764 | { |
99ce8e9f JO |
765 | if (dir) |
766 | scnprintf(buildid_dir, MAXPATHLEN-1, "%s", dir); | |
45de34bb | 767 | |
45de34bb SE |
768 | /* default to $HOME/.debug */ |
769 | if (buildid_dir[0] == '\0') { | |
37194f44 TS |
770 | char *home = getenv("HOME"); |
771 | ||
772 | if (home) { | |
45de34bb | 773 | snprintf(buildid_dir, MAXPATHLEN-1, "%s/%s", |
37194f44 | 774 | home, DEBUG_CACHE_DIR); |
45de34bb SE |
775 | } else { |
776 | strncpy(buildid_dir, DEBUG_CACHE_DIR, MAXPATHLEN-1); | |
777 | } | |
778 | buildid_dir[MAXPATHLEN-1] = '\0'; | |
779 | } | |
780 | /* for communicating with external commands */ | |
781 | setenv("PERF_BUILDID_DIR", buildid_dir, 1); | |
782 | } |