]> git.proxmox.com Git - rustc.git/blob - src/jemalloc/src/ctl.c
projects / rustc.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Imported Upstream version 1.9.0+dfsg1
[rustc.git] / src / jemalloc / src / ctl.c
1 #define JEMALLOC_CTL_C_
2 #include "jemalloc/internal/jemalloc_internal.h"
3
4 /******************************************************************************/
5 /* Data. */
6
7 /*
8 * ctl_mtx protects the following:
9 * - ctl_stats.*
10 */
11 static malloc_mutex_t ctl_mtx;
12 static bool ctl_initialized;
13 static uint64_t ctl_epoch;
14 static ctl_stats_t ctl_stats;
15
16 /******************************************************************************/
17 /* Helpers for named and indexed nodes. */
18
19 JEMALLOC_INLINE_C const ctl_named_node_t *
20 ctl_named_node(const ctl_node_t *node)
21 {
22
23 return ((node->named) ? (const ctl_named_node_t *)node : NULL);
24 }
25
26 JEMALLOC_INLINE_C const ctl_named_node_t *
27 ctl_named_children(const ctl_named_node_t *node, size_t index)
28 {
29 const ctl_named_node_t *children = ctl_named_node(node->children);
30
31 return (children ? &children[index] : NULL);
32 }
33
34 JEMALLOC_INLINE_C const ctl_indexed_node_t *
35 ctl_indexed_node(const ctl_node_t *node)
36 {
37
38 return (!node->named ? (const ctl_indexed_node_t *)node : NULL);
39 }
40
41 /******************************************************************************/
42 /* Function prototypes for non-inline static functions. */
43
44 #define CTL_PROTO(n) \
45 static int n##_ctl(const size_t *mib, size_t miblen, void *oldp, \
46 size_t *oldlenp, void *newp, size_t newlen);
47
48 #define INDEX_PROTO(n) \
49 static const ctl_named_node_t *n##_index(const size_t *mib, \
50 size_t miblen, size_t i);
51
52 static bool ctl_arena_init(ctl_arena_stats_t *astats);
53 static void ctl_arena_clear(ctl_arena_stats_t *astats);
54 static void ctl_arena_stats_amerge(ctl_arena_stats_t *cstats,
55 arena_t *arena);
56 static void ctl_arena_stats_smerge(ctl_arena_stats_t *sstats,
57 ctl_arena_stats_t *astats);
58 static void ctl_arena_refresh(arena_t *arena, unsigned i);
59 static bool ctl_grow(void);
60 static void ctl_refresh(void);
61 static bool ctl_init(void);
62 static int ctl_lookup(const char *name, ctl_node_t const **nodesp,
63 size_t *mibp, size_t *depthp);
64
65 CTL_PROTO(version)
66 CTL_PROTO(epoch)
67 CTL_PROTO(thread_tcache_enabled)
68 CTL_PROTO(thread_tcache_flush)
69 CTL_PROTO(thread_prof_name)
70 CTL_PROTO(thread_prof_active)
71 CTL_PROTO(thread_arena)
72 CTL_PROTO(thread_allocated)
73 CTL_PROTO(thread_allocatedp)
74 CTL_PROTO(thread_deallocated)
75 CTL_PROTO(thread_deallocatedp)
76 CTL_PROTO(config_cache_oblivious)
77 CTL_PROTO(config_debug)
78 CTL_PROTO(config_fill)
79 CTL_PROTO(config_lazy_lock)
80 CTL_PROTO(config_malloc_conf)
81 CTL_PROTO(config_munmap)
82 CTL_PROTO(config_prof)
83 CTL_PROTO(config_prof_libgcc)
84 CTL_PROTO(config_prof_libunwind)
85 CTL_PROTO(config_stats)
86 CTL_PROTO(config_tcache)
87 CTL_PROTO(config_tls)
88 CTL_PROTO(config_utrace)
89 CTL_PROTO(config_valgrind)
90 CTL_PROTO(config_xmalloc)
91 CTL_PROTO(opt_abort)
92 CTL_PROTO(opt_dss)
93 CTL_PROTO(opt_lg_chunk)
94 CTL_PROTO(opt_narenas)
95 CTL_PROTO(opt_purge)
96 CTL_PROTO(opt_lg_dirty_mult)
97 CTL_PROTO(opt_decay_time)
98 CTL_PROTO(opt_stats_print)
99 CTL_PROTO(opt_junk)
100 CTL_PROTO(opt_zero)
101 CTL_PROTO(opt_quarantine)
102 CTL_PROTO(opt_redzone)
103 CTL_PROTO(opt_utrace)
104 CTL_PROTO(opt_xmalloc)
105 CTL_PROTO(opt_tcache)
106 CTL_PROTO(opt_lg_tcache_max)
107 CTL_PROTO(opt_prof)
108 CTL_PROTO(opt_prof_prefix)
109 CTL_PROTO(opt_prof_active)
110 CTL_PROTO(opt_prof_thread_active_init)
111 CTL_PROTO(opt_lg_prof_sample)
112 CTL_PROTO(opt_lg_prof_interval)
113 CTL_PROTO(opt_prof_gdump)
114 CTL_PROTO(opt_prof_final)
115 CTL_PROTO(opt_prof_leak)
116 CTL_PROTO(opt_prof_accum)
117 CTL_PROTO(tcache_create)
118 CTL_PROTO(tcache_flush)
119 CTL_PROTO(tcache_destroy)
120 static void arena_i_purge(unsigned arena_ind, bool all);
121 CTL_PROTO(arena_i_purge)
122 CTL_PROTO(arena_i_decay)
123 CTL_PROTO(arena_i_dss)
124 CTL_PROTO(arena_i_lg_dirty_mult)
125 CTL_PROTO(arena_i_decay_time)
126 CTL_PROTO(arena_i_chunk_hooks)
127 INDEX_PROTO(arena_i)
128 CTL_PROTO(arenas_bin_i_size)
129 CTL_PROTO(arenas_bin_i_nregs)
130 CTL_PROTO(arenas_bin_i_run_size)
131 INDEX_PROTO(arenas_bin_i)
132 CTL_PROTO(arenas_lrun_i_size)
133 INDEX_PROTO(arenas_lrun_i)
134 CTL_PROTO(arenas_hchunk_i_size)
135 INDEX_PROTO(arenas_hchunk_i)
136 CTL_PROTO(arenas_narenas)
137 CTL_PROTO(arenas_initialized)
138 CTL_PROTO(arenas_lg_dirty_mult)
139 CTL_PROTO(arenas_decay_time)
140 CTL_PROTO(arenas_quantum)
141 CTL_PROTO(arenas_page)
142 CTL_PROTO(arenas_tcache_max)
143 CTL_PROTO(arenas_nbins)
144 CTL_PROTO(arenas_nhbins)
145 CTL_PROTO(arenas_nlruns)
146 CTL_PROTO(arenas_nhchunks)
147 CTL_PROTO(arenas_extend)
148 CTL_PROTO(prof_thread_active_init)
149 CTL_PROTO(prof_active)
150 CTL_PROTO(prof_dump)
151 CTL_PROTO(prof_gdump)
152 CTL_PROTO(prof_reset)
153 CTL_PROTO(prof_interval)
154 CTL_PROTO(lg_prof_sample)
155 CTL_PROTO(stats_arenas_i_small_allocated)
156 CTL_PROTO(stats_arenas_i_small_nmalloc)
157 CTL_PROTO(stats_arenas_i_small_ndalloc)
158 CTL_PROTO(stats_arenas_i_small_nrequests)
159 CTL_PROTO(stats_arenas_i_large_allocated)
160 CTL_PROTO(stats_arenas_i_large_nmalloc)
161 CTL_PROTO(stats_arenas_i_large_ndalloc)
162 CTL_PROTO(stats_arenas_i_large_nrequests)
163 CTL_PROTO(stats_arenas_i_huge_allocated)
164 CTL_PROTO(stats_arenas_i_huge_nmalloc)
165 CTL_PROTO(stats_arenas_i_huge_ndalloc)
166 CTL_PROTO(stats_arenas_i_huge_nrequests)
167 CTL_PROTO(stats_arenas_i_bins_j_nmalloc)
168 CTL_PROTO(stats_arenas_i_bins_j_ndalloc)
169 CTL_PROTO(stats_arenas_i_bins_j_nrequests)
170 CTL_PROTO(stats_arenas_i_bins_j_curregs)
171 CTL_PROTO(stats_arenas_i_bins_j_nfills)
172 CTL_PROTO(stats_arenas_i_bins_j_nflushes)
173 CTL_PROTO(stats_arenas_i_bins_j_nruns)
174 CTL_PROTO(stats_arenas_i_bins_j_nreruns)
175 CTL_PROTO(stats_arenas_i_bins_j_curruns)
176 INDEX_PROTO(stats_arenas_i_bins_j)
177 CTL_PROTO(stats_arenas_i_lruns_j_nmalloc)
178 CTL_PROTO(stats_arenas_i_lruns_j_ndalloc)
179 CTL_PROTO(stats_arenas_i_lruns_j_nrequests)
180 CTL_PROTO(stats_arenas_i_lruns_j_curruns)
181 INDEX_PROTO(stats_arenas_i_lruns_j)
182 CTL_PROTO(stats_arenas_i_hchunks_j_nmalloc)
183 CTL_PROTO(stats_arenas_i_hchunks_j_ndalloc)
184 CTL_PROTO(stats_arenas_i_hchunks_j_nrequests)
185 CTL_PROTO(stats_arenas_i_hchunks_j_curhchunks)
186 INDEX_PROTO(stats_arenas_i_hchunks_j)
187 CTL_PROTO(stats_arenas_i_nthreads)
188 CTL_PROTO(stats_arenas_i_dss)
189 CTL_PROTO(stats_arenas_i_lg_dirty_mult)
190 CTL_PROTO(stats_arenas_i_decay_time)
191 CTL_PROTO(stats_arenas_i_pactive)
192 CTL_PROTO(stats_arenas_i_pdirty)
193 CTL_PROTO(stats_arenas_i_mapped)
194 CTL_PROTO(stats_arenas_i_npurge)
195 CTL_PROTO(stats_arenas_i_nmadvise)
196 CTL_PROTO(stats_arenas_i_purged)
197 CTL_PROTO(stats_arenas_i_metadata_mapped)
198 CTL_PROTO(stats_arenas_i_metadata_allocated)
199 INDEX_PROTO(stats_arenas_i)
200 CTL_PROTO(stats_cactive)
201 CTL_PROTO(stats_allocated)
202 CTL_PROTO(stats_active)
203 CTL_PROTO(stats_metadata)
204 CTL_PROTO(stats_resident)
205 CTL_PROTO(stats_mapped)
206
207 /******************************************************************************/
208 /* mallctl tree. */
209
210 /* Maximum tree depth. */
211 #define CTL_MAX_DEPTH 6
212
213 #define NAME(n) {true}, n
214 #define CHILD(t, c) \
215 sizeof(c##_node) / sizeof(ctl_##t##_node_t), \
216 (ctl_node_t *)c##_node, \
217 NULL
218 #define CTL(c) 0, NULL, c##_ctl
219
220 /*
221 * Only handles internal indexed nodes, since there are currently no external
222 * ones.
223 */
224 #define INDEX(i) {false}, i##_index
225
226 static const ctl_named_node_t thread_tcache_node[] = {
227 {NAME("enabled"), CTL(thread_tcache_enabled)},
228 {NAME("flush"), CTL(thread_tcache_flush)}
229 };
230
231 static const ctl_named_node_t thread_prof_node[] = {
232 {NAME("name"), CTL(thread_prof_name)},
233 {NAME("active"), CTL(thread_prof_active)}
234 };
235
236 static const ctl_named_node_t thread_node[] = {
237 {NAME("arena"), CTL(thread_arena)},
238 {NAME("allocated"), CTL(thread_allocated)},
239 {NAME("allocatedp"), CTL(thread_allocatedp)},
240 {NAME("deallocated"), CTL(thread_deallocated)},
241 {NAME("deallocatedp"), CTL(thread_deallocatedp)},
242 {NAME("tcache"), CHILD(named, thread_tcache)},
243 {NAME("prof"), CHILD(named, thread_prof)}
244 };
245
246 static const ctl_named_node_t config_node[] = {
247 {NAME("cache_oblivious"), CTL(config_cache_oblivious)},
248 {NAME("debug"), CTL(config_debug)},
249 {NAME("fill"), CTL(config_fill)},
250 {NAME("lazy_lock"), CTL(config_lazy_lock)},
251 {NAME("malloc_conf"), CTL(config_malloc_conf)},
252 {NAME("munmap"), CTL(config_munmap)},
253 {NAME("prof"), CTL(config_prof)},
254 {NAME("prof_libgcc"), CTL(config_prof_libgcc)},
255 {NAME("prof_libunwind"), CTL(config_prof_libunwind)},
256 {NAME("stats"), CTL(config_stats)},
257 {NAME("tcache"), CTL(config_tcache)},
258 {NAME("tls"), CTL(config_tls)},
259 {NAME("utrace"), CTL(config_utrace)},
260 {NAME("valgrind"), CTL(config_valgrind)},
261 {NAME("xmalloc"), CTL(config_xmalloc)}
262 };
263
264 static const ctl_named_node_t opt_node[] = {
265 {NAME("abort"), CTL(opt_abort)},
266 {NAME("dss"), CTL(opt_dss)},
267 {NAME("lg_chunk"), CTL(opt_lg_chunk)},
268 {NAME("narenas"), CTL(opt_narenas)},
269 {NAME("purge"), CTL(opt_purge)},
270 {NAME("lg_dirty_mult"), CTL(opt_lg_dirty_mult)},
271 {NAME("decay_time"), CTL(opt_decay_time)},
272 {NAME("stats_print"), CTL(opt_stats_print)},
273 {NAME("junk"), CTL(opt_junk)},
274 {NAME("zero"), CTL(opt_zero)},
275 {NAME("quarantine"), CTL(opt_quarantine)},
276 {NAME("redzone"), CTL(opt_redzone)},
277 {NAME("utrace"), CTL(opt_utrace)},
278 {NAME("xmalloc"), CTL(opt_xmalloc)},
279 {NAME("tcache"), CTL(opt_tcache)},
280 {NAME("lg_tcache_max"), CTL(opt_lg_tcache_max)},
281 {NAME("prof"), CTL(opt_prof)},
282 {NAME("prof_prefix"), CTL(opt_prof_prefix)},
283 {NAME("prof_active"), CTL(opt_prof_active)},
284 {NAME("prof_thread_active_init"), CTL(opt_prof_thread_active_init)},
285 {NAME("lg_prof_sample"), CTL(opt_lg_prof_sample)},
286 {NAME("lg_prof_interval"), CTL(opt_lg_prof_interval)},
287 {NAME("prof_gdump"), CTL(opt_prof_gdump)},
288 {NAME("prof_final"), CTL(opt_prof_final)},
289 {NAME("prof_leak"), CTL(opt_prof_leak)},
290 {NAME("prof_accum"), CTL(opt_prof_accum)}
291 };
292
293 static const ctl_named_node_t tcache_node[] = {
294 {NAME("create"), CTL(tcache_create)},
295 {NAME("flush"), CTL(tcache_flush)},
296 {NAME("destroy"), CTL(tcache_destroy)}
297 };
298
299 static const ctl_named_node_t arena_i_node[] = {
300 {NAME("purge"), CTL(arena_i_purge)},
301 {NAME("decay"), CTL(arena_i_decay)},
302 {NAME("dss"), CTL(arena_i_dss)},
303 {NAME("lg_dirty_mult"), CTL(arena_i_lg_dirty_mult)},
304 {NAME("decay_time"), CTL(arena_i_decay_time)},
305 {NAME("chunk_hooks"), CTL(arena_i_chunk_hooks)}
306 };
307 static const ctl_named_node_t super_arena_i_node[] = {
308 {NAME(""), CHILD(named, arena_i)}
309 };
310
311 static const ctl_indexed_node_t arena_node[] = {
312 {INDEX(arena_i)}
313 };
314
315 static const ctl_named_node_t arenas_bin_i_node[] = {
316 {NAME("size"), CTL(arenas_bin_i_size)},
317 {NAME("nregs"), CTL(arenas_bin_i_nregs)},
318 {NAME("run_size"), CTL(arenas_bin_i_run_size)}
319 };
320 static const ctl_named_node_t super_arenas_bin_i_node[] = {
321 {NAME(""), CHILD(named, arenas_bin_i)}
322 };
323
324 static const ctl_indexed_node_t arenas_bin_node[] = {
325 {INDEX(arenas_bin_i)}
326 };
327
328 static const ctl_named_node_t arenas_lrun_i_node[] = {
329 {NAME("size"), CTL(arenas_lrun_i_size)}
330 };
331 static const ctl_named_node_t super_arenas_lrun_i_node[] = {
332 {NAME(""), CHILD(named, arenas_lrun_i)}
333 };
334
335 static const ctl_indexed_node_t arenas_lrun_node[] = {
336 {INDEX(arenas_lrun_i)}
337 };
338
339 static const ctl_named_node_t arenas_hchunk_i_node[] = {
340 {NAME("size"), CTL(arenas_hchunk_i_size)}
341 };
342 static const ctl_named_node_t super_arenas_hchunk_i_node[] = {
343 {NAME(""), CHILD(named, arenas_hchunk_i)}
344 };
345
346 static const ctl_indexed_node_t arenas_hchunk_node[] = {
347 {INDEX(arenas_hchunk_i)}
348 };
349
350 static const ctl_named_node_t arenas_node[] = {
351 {NAME("narenas"), CTL(arenas_narenas)},
352 {NAME("initialized"), CTL(arenas_initialized)},
353 {NAME("lg_dirty_mult"), CTL(arenas_lg_dirty_mult)},
354 {NAME("decay_time"), CTL(arenas_decay_time)},
355 {NAME("quantum"), CTL(arenas_quantum)},
356 {NAME("page"), CTL(arenas_page)},
357 {NAME("tcache_max"), CTL(arenas_tcache_max)},
358 {NAME("nbins"), CTL(arenas_nbins)},
359 {NAME("nhbins"), CTL(arenas_nhbins)},
360 {NAME("bin"), CHILD(indexed, arenas_bin)},
361 {NAME("nlruns"), CTL(arenas_nlruns)},
362 {NAME("lrun"), CHILD(indexed, arenas_lrun)},
363 {NAME("nhchunks"), CTL(arenas_nhchunks)},
364 {NAME("hchunk"), CHILD(indexed, arenas_hchunk)},
365 {NAME("extend"), CTL(arenas_extend)}
366 };
367
368 static const ctl_named_node_t prof_node[] = {
369 {NAME("thread_active_init"), CTL(prof_thread_active_init)},
370 {NAME("active"), CTL(prof_active)},
371 {NAME("dump"), CTL(prof_dump)},
372 {NAME("gdump"), CTL(prof_gdump)},
373 {NAME("reset"), CTL(prof_reset)},
374 {NAME("interval"), CTL(prof_interval)},
375 {NAME("lg_sample"), CTL(lg_prof_sample)}
376 };
377
378 static const ctl_named_node_t stats_arenas_i_metadata_node[] = {
379 {NAME("mapped"), CTL(stats_arenas_i_metadata_mapped)},
380 {NAME("allocated"), CTL(stats_arenas_i_metadata_allocated)}
381 };
382
383 static const ctl_named_node_t stats_arenas_i_small_node[] = {
384 {NAME("allocated"), CTL(stats_arenas_i_small_allocated)},
385 {NAME("nmalloc"), CTL(stats_arenas_i_small_nmalloc)},
386 {NAME("ndalloc"), CTL(stats_arenas_i_small_ndalloc)},
387 {NAME("nrequests"), CTL(stats_arenas_i_small_nrequests)}
388 };
389
390 static const ctl_named_node_t stats_arenas_i_large_node[] = {
391 {NAME("allocated"), CTL(stats_arenas_i_large_allocated)},
392 {NAME("nmalloc"), CTL(stats_arenas_i_large_nmalloc)},
393 {NAME("ndalloc"), CTL(stats_arenas_i_large_ndalloc)},
394 {NAME("nrequests"), CTL(stats_arenas_i_large_nrequests)}
395 };
396
397 static const ctl_named_node_t stats_arenas_i_huge_node[] = {
398 {NAME("allocated"), CTL(stats_arenas_i_huge_allocated)},
399 {NAME("nmalloc"), CTL(stats_arenas_i_huge_nmalloc)},
400 {NAME("ndalloc"), CTL(stats_arenas_i_huge_ndalloc)},
401 {NAME("nrequests"), CTL(stats_arenas_i_huge_nrequests)}
402 };
403
404 static const ctl_named_node_t stats_arenas_i_bins_j_node[] = {
405 {NAME("nmalloc"), CTL(stats_arenas_i_bins_j_nmalloc)},
406 {NAME("ndalloc"), CTL(stats_arenas_i_bins_j_ndalloc)},
407 {NAME("nrequests"), CTL(stats_arenas_i_bins_j_nrequests)},
408 {NAME("curregs"), CTL(stats_arenas_i_bins_j_curregs)},
409 {NAME("nfills"), CTL(stats_arenas_i_bins_j_nfills)},
410 {NAME("nflushes"), CTL(stats_arenas_i_bins_j_nflushes)},
411 {NAME("nruns"), CTL(stats_arenas_i_bins_j_nruns)},
412 {NAME("nreruns"), CTL(stats_arenas_i_bins_j_nreruns)},
413 {NAME("curruns"), CTL(stats_arenas_i_bins_j_curruns)}
414 };
415 static const ctl_named_node_t super_stats_arenas_i_bins_j_node[] = {
416 {NAME(""), CHILD(named, stats_arenas_i_bins_j)}
417 };
418
419 static const ctl_indexed_node_t stats_arenas_i_bins_node[] = {
420 {INDEX(stats_arenas_i_bins_j)}
421 };
422
423 static const ctl_named_node_t stats_arenas_i_lruns_j_node[] = {
424 {NAME("nmalloc"), CTL(stats_arenas_i_lruns_j_nmalloc)},
425 {NAME("ndalloc"), CTL(stats_arenas_i_lruns_j_ndalloc)},
426 {NAME("nrequests"), CTL(stats_arenas_i_lruns_j_nrequests)},
427 {NAME("curruns"), CTL(stats_arenas_i_lruns_j_curruns)}
428 };
429 static const ctl_named_node_t super_stats_arenas_i_lruns_j_node[] = {
430 {NAME(""), CHILD(named, stats_arenas_i_lruns_j)}
431 };
432
433 static const ctl_indexed_node_t stats_arenas_i_lruns_node[] = {
434 {INDEX(stats_arenas_i_lruns_j)}
435 };
436
437 static const ctl_named_node_t stats_arenas_i_hchunks_j_node[] = {
438 {NAME("nmalloc"), CTL(stats_arenas_i_hchunks_j_nmalloc)},
439 {NAME("ndalloc"), CTL(stats_arenas_i_hchunks_j_ndalloc)},
440 {NAME("nrequests"), CTL(stats_arenas_i_hchunks_j_nrequests)},
441 {NAME("curhchunks"), CTL(stats_arenas_i_hchunks_j_curhchunks)}
442 };
443 static const ctl_named_node_t super_stats_arenas_i_hchunks_j_node[] = {
444 {NAME(""), CHILD(named, stats_arenas_i_hchunks_j)}
445 };
446
447 static const ctl_indexed_node_t stats_arenas_i_hchunks_node[] = {
448 {INDEX(stats_arenas_i_hchunks_j)}
449 };
450
451 static const ctl_named_node_t stats_arenas_i_node[] = {
452 {NAME("nthreads"), CTL(stats_arenas_i_nthreads)},
453 {NAME("dss"), CTL(stats_arenas_i_dss)},
454 {NAME("lg_dirty_mult"), CTL(stats_arenas_i_lg_dirty_mult)},
455 {NAME("decay_time"), CTL(stats_arenas_i_decay_time)},
456 {NAME("pactive"), CTL(stats_arenas_i_pactive)},
457 {NAME("pdirty"), CTL(stats_arenas_i_pdirty)},
458 {NAME("mapped"), CTL(stats_arenas_i_mapped)},
459 {NAME("npurge"), CTL(stats_arenas_i_npurge)},
460 {NAME("nmadvise"), CTL(stats_arenas_i_nmadvise)},
461 {NAME("purged"), CTL(stats_arenas_i_purged)},
462 {NAME("metadata"), CHILD(named, stats_arenas_i_metadata)},
463 {NAME("small"), CHILD(named, stats_arenas_i_small)},
464 {NAME("large"), CHILD(named, stats_arenas_i_large)},
465 {NAME("huge"), CHILD(named, stats_arenas_i_huge)},
466 {NAME("bins"), CHILD(indexed, stats_arenas_i_bins)},
467 {NAME("lruns"), CHILD(indexed, stats_arenas_i_lruns)},
468 {NAME("hchunks"), CHILD(indexed, stats_arenas_i_hchunks)}
469 };
470 static const ctl_named_node_t super_stats_arenas_i_node[] = {
471 {NAME(""), CHILD(named, stats_arenas_i)}
472 };
473
474 static const ctl_indexed_node_t stats_arenas_node[] = {
475 {INDEX(stats_arenas_i)}
476 };
477
478 static const ctl_named_node_t stats_node[] = {
479 {NAME("cactive"), CTL(stats_cactive)},
480 {NAME("allocated"), CTL(stats_allocated)},
481 {NAME("active"), CTL(stats_active)},
482 {NAME("metadata"), CTL(stats_metadata)},
483 {NAME("resident"), CTL(stats_resident)},
484 {NAME("mapped"), CTL(stats_mapped)},
485 {NAME("arenas"), CHILD(indexed, stats_arenas)}
486 };
487
488 static const ctl_named_node_t root_node[] = {
489 {NAME("version"), CTL(version)},
490 {NAME("epoch"), CTL(epoch)},
491 {NAME("thread"), CHILD(named, thread)},
492 {NAME("config"), CHILD(named, config)},
493 {NAME("opt"), CHILD(named, opt)},
494 {NAME("tcache"), CHILD(named, tcache)},
495 {NAME("arena"), CHILD(indexed, arena)},
496 {NAME("arenas"), CHILD(named, arenas)},
497 {NAME("prof"), CHILD(named, prof)},
498 {NAME("stats"), CHILD(named, stats)}
499 };
500 static const ctl_named_node_t super_root_node[] = {
501 {NAME(""), CHILD(named, root)}
502 };
503
504 #undef NAME
505 #undef CHILD
506 #undef CTL
507 #undef INDEX
508
509 /******************************************************************************/
510
511 static bool
512 ctl_arena_init(ctl_arena_stats_t *astats)
513 {
514
515 if (astats->lstats == NULL) {
516 astats->lstats = (malloc_large_stats_t *)a0malloc(nlclasses *
517 sizeof(malloc_large_stats_t));
518 if (astats->lstats == NULL)
519 return (true);
520 }
521
522 if (astats->hstats == NULL) {
523 astats->hstats = (malloc_huge_stats_t *)a0malloc(nhclasses *
524 sizeof(malloc_huge_stats_t));
525 if (astats->hstats == NULL)
526 return (true);
527 }
528
529 return (false);
530 }
531
532 static void
533 ctl_arena_clear(ctl_arena_stats_t *astats)
534 {
535
536 astats->nthreads = 0;
537 astats->dss = dss_prec_names[dss_prec_limit];
538 astats->lg_dirty_mult = -1;
539 astats->decay_time = -1;
540 astats->pactive = 0;
541 astats->pdirty = 0;
542 if (config_stats) {
543 memset(&astats->astats, 0, sizeof(arena_stats_t));
544 astats->allocated_small = 0;
545 astats->nmalloc_small = 0;
546 astats->ndalloc_small = 0;
547 astats->nrequests_small = 0;
548 memset(astats->bstats, 0, NBINS * sizeof(malloc_bin_stats_t));
549 memset(astats->lstats, 0, nlclasses *
550 sizeof(malloc_large_stats_t));
551 memset(astats->hstats, 0, nhclasses *
552 sizeof(malloc_huge_stats_t));
553 }
554 }
555
556 static void
557 ctl_arena_stats_amerge(ctl_arena_stats_t *cstats, arena_t *arena)
558 {
559 unsigned i;
560
561 if (config_stats) {
562 arena_stats_merge(arena, &cstats->nthreads, &cstats->dss,
563 &cstats->lg_dirty_mult, &cstats->decay_time,
564 &cstats->pactive, &cstats->pdirty, &cstats->astats,
565 cstats->bstats, cstats->lstats, cstats->hstats);
566
567 for (i = 0; i < NBINS; i++) {
568 cstats->allocated_small += cstats->bstats[i].curregs *
569 index2size(i);
570 cstats->nmalloc_small += cstats->bstats[i].nmalloc;
571 cstats->ndalloc_small += cstats->bstats[i].ndalloc;
572 cstats->nrequests_small += cstats->bstats[i].nrequests;
573 }
574 } else {
575 arena_basic_stats_merge(arena, &cstats->nthreads, &cstats->dss,
576 &cstats->lg_dirty_mult, &cstats->decay_time,
577 &cstats->pactive, &cstats->pdirty);
578 }
579 }
580
581 static void
582 ctl_arena_stats_smerge(ctl_arena_stats_t *sstats, ctl_arena_stats_t *astats)
583 {
584 unsigned i;
585
586 sstats->nthreads += astats->nthreads;
587 sstats->pactive += astats->pactive;
588 sstats->pdirty += astats->pdirty;
589
590 if (config_stats) {
591 sstats->astats.mapped += astats->astats.mapped;
592 sstats->astats.npurge += astats->astats.npurge;
593 sstats->astats.nmadvise += astats->astats.nmadvise;
594 sstats->astats.purged += astats->astats.purged;
595
596 sstats->astats.metadata_mapped +=
597 astats->astats.metadata_mapped;
598 sstats->astats.metadata_allocated +=
599 astats->astats.metadata_allocated;
600
601 sstats->allocated_small += astats->allocated_small;
602 sstats->nmalloc_small += astats->nmalloc_small;
603 sstats->ndalloc_small += astats->ndalloc_small;
604 sstats->nrequests_small += astats->nrequests_small;
605
606 sstats->astats.allocated_large +=
607 astats->astats.allocated_large;
608 sstats->astats.nmalloc_large += astats->astats.nmalloc_large;
609 sstats->astats.ndalloc_large += astats->astats.ndalloc_large;
610 sstats->astats.nrequests_large +=
611 astats->astats.nrequests_large;
612
613 sstats->astats.allocated_huge += astats->astats.allocated_huge;
614 sstats->astats.nmalloc_huge += astats->astats.nmalloc_huge;
615 sstats->astats.ndalloc_huge += astats->astats.ndalloc_huge;
616
617 for (i = 0; i < NBINS; i++) {
618 sstats->bstats[i].nmalloc += astats->bstats[i].nmalloc;
619 sstats->bstats[i].ndalloc += astats->bstats[i].ndalloc;
620 sstats->bstats[i].nrequests +=
621 astats->bstats[i].nrequests;
622 sstats->bstats[i].curregs += astats->bstats[i].curregs;
623 if (config_tcache) {
624 sstats->bstats[i].nfills +=
625 astats->bstats[i].nfills;
626 sstats->bstats[i].nflushes +=
627 astats->bstats[i].nflushes;
628 }
629 sstats->bstats[i].nruns += astats->bstats[i].nruns;
630 sstats->bstats[i].reruns += astats->bstats[i].reruns;
631 sstats->bstats[i].curruns += astats->bstats[i].curruns;
632 }
633
634 for (i = 0; i < nlclasses; i++) {
635 sstats->lstats[i].nmalloc += astats->lstats[i].nmalloc;
636 sstats->lstats[i].ndalloc += astats->lstats[i].ndalloc;
637 sstats->lstats[i].nrequests +=
638 astats->lstats[i].nrequests;
639 sstats->lstats[i].curruns += astats->lstats[i].curruns;
640 }
641
642 for (i = 0; i < nhclasses; i++) {
643 sstats->hstats[i].nmalloc += astats->hstats[i].nmalloc;
644 sstats->hstats[i].ndalloc += astats->hstats[i].ndalloc;
645 sstats->hstats[i].curhchunks +=
646 astats->hstats[i].curhchunks;
647 }
648 }
649 }
650
651 static void
652 ctl_arena_refresh(arena_t *arena, unsigned i)
653 {
654 ctl_arena_stats_t *astats = &ctl_stats.arenas[i];
655 ctl_arena_stats_t *sstats = &ctl_stats.arenas[ctl_stats.narenas];
656
657 ctl_arena_clear(astats);
658 ctl_arena_stats_amerge(astats, arena);
659 /* Merge into sum stats as well. */
660 ctl_arena_stats_smerge(sstats, astats);
661 }
662
663 static bool
664 ctl_grow(void)
665 {
666 ctl_arena_stats_t *astats;
667
668 /* Initialize new arena. */
669 if (arena_init(ctl_stats.narenas) == NULL)
670 return (true);
671
672 /* Allocate extended arena stats. */
673 astats = (ctl_arena_stats_t *)a0malloc((ctl_stats.narenas + 2) *
674 sizeof(ctl_arena_stats_t));
675 if (astats == NULL)
676 return (true);
677
678 /* Initialize the new astats element. */
679 memcpy(astats, ctl_stats.arenas, (ctl_stats.narenas + 1) *
680 sizeof(ctl_arena_stats_t));
681 memset(&astats[ctl_stats.narenas + 1], 0, sizeof(ctl_arena_stats_t));
682 if (ctl_arena_init(&astats[ctl_stats.narenas + 1])) {
683 a0dalloc(astats);
684 return (true);
685 }
686 /* Swap merged stats to their new location. */
687 {
688 ctl_arena_stats_t tstats;
689 memcpy(&tstats, &astats[ctl_stats.narenas],
690 sizeof(ctl_arena_stats_t));
691 memcpy(&astats[ctl_stats.narenas],
692 &astats[ctl_stats.narenas + 1], sizeof(ctl_arena_stats_t));
693 memcpy(&astats[ctl_stats.narenas + 1], &tstats,
694 sizeof(ctl_arena_stats_t));
695 }
696 a0dalloc(ctl_stats.arenas);
697 ctl_stats.arenas = astats;
698 ctl_stats.narenas++;
699
700 return (false);
701 }
702
703 static void
704 ctl_refresh(void)
705 {
706 unsigned i;
707 VARIABLE_ARRAY(arena_t *, tarenas, ctl_stats.narenas);
708
709 /*
710 * Clear sum stats, since they will be merged into by
711 * ctl_arena_refresh().
712 */
713 ctl_arena_clear(&ctl_stats.arenas[ctl_stats.narenas]);
714
715 for (i = 0; i < ctl_stats.narenas; i++)
716 tarenas[i] = arena_get(i, false);
717
718 for (i = 0; i < ctl_stats.narenas; i++) {
719 bool initialized = (tarenas[i] != NULL);
720
721 ctl_stats.arenas[i].initialized = initialized;
722 if (initialized)
723 ctl_arena_refresh(tarenas[i], i);
724 }
725
726 if (config_stats) {
727 size_t base_allocated, base_resident, base_mapped;
728 base_stats_get(&base_allocated, &base_resident, &base_mapped);
729 ctl_stats.allocated =
730 ctl_stats.arenas[ctl_stats.narenas].allocated_small +
731 ctl_stats.arenas[ctl_stats.narenas].astats.allocated_large +
732 ctl_stats.arenas[ctl_stats.narenas].astats.allocated_huge;
733 ctl_stats.active =
734 (ctl_stats.arenas[ctl_stats.narenas].pactive << LG_PAGE);
735 ctl_stats.metadata = base_allocated +
736 ctl_stats.arenas[ctl_stats.narenas].astats.metadata_mapped +
737 ctl_stats.arenas[ctl_stats.narenas].astats
738 .metadata_allocated;
739 ctl_stats.resident = base_resident +
740 ctl_stats.arenas[ctl_stats.narenas].astats.metadata_mapped +
741 ((ctl_stats.arenas[ctl_stats.narenas].pactive +
742 ctl_stats.arenas[ctl_stats.narenas].pdirty) << LG_PAGE);
743 ctl_stats.mapped = base_mapped +
744 ctl_stats.arenas[ctl_stats.narenas].astats.mapped;
745 }
746
747 ctl_epoch++;
748 }
749
750 static bool
751 ctl_init(void)
752 {
753 bool ret;
754
755 malloc_mutex_lock(&ctl_mtx);
756 if (!ctl_initialized) {
757 /*
758 * Allocate space for one extra arena stats element, which
759 * contains summed stats across all arenas.
760 */
761 ctl_stats.narenas = narenas_total_get();
762 ctl_stats.arenas = (ctl_arena_stats_t *)a0malloc(
763 (ctl_stats.narenas + 1) * sizeof(ctl_arena_stats_t));
764 if (ctl_stats.arenas == NULL) {
765 ret = true;
766 goto label_return;
767 }
768 memset(ctl_stats.arenas, 0, (ctl_stats.narenas + 1) *
769 sizeof(ctl_arena_stats_t));
770
771 /*
772 * Initialize all stats structures, regardless of whether they
773 * ever get used. Lazy initialization would allow errors to
774 * cause inconsistent state to be viewable by the application.
775 */
776 if (config_stats) {
777 unsigned i;
778 for (i = 0; i <= ctl_stats.narenas; i++) {
779 if (ctl_arena_init(&ctl_stats.arenas[i])) {
780 unsigned j;
781 for (j = 0; j < i; j++) {
782 a0dalloc(
783 ctl_stats.arenas[j].lstats);
784 a0dalloc(
785 ctl_stats.arenas[j].hstats);
786 }
787 a0dalloc(ctl_stats.arenas);
788 ctl_stats.arenas = NULL;
789 ret = true;
790 goto label_return;
791 }
792 }
793 }
794 ctl_stats.arenas[ctl_stats.narenas].initialized = true;
795
796 ctl_epoch = 0;
797 ctl_refresh();
798 ctl_initialized = true;
799 }
800
801 ret = false;
802 label_return:
803 malloc_mutex_unlock(&ctl_mtx);
804 return (ret);
805 }
806
807 static int
808 ctl_lookup(const char *name, ctl_node_t const **nodesp, size_t *mibp,
809 size_t *depthp)
810 {
811 int ret;
812 const char *elm, *tdot, *dot;
813 size_t elen, i, j;
814 const ctl_named_node_t *node;
815
816 elm = name;
817 /* Equivalent to strchrnul(). */
818 dot = ((tdot = strchr(elm, '.')) != NULL) ? tdot : strchr(elm, '\0');
819 elen = (size_t)((uintptr_t)dot - (uintptr_t)elm);
820 if (elen == 0) {
821 ret = ENOENT;
822 goto label_return;
823 }
824 node = super_root_node;
825 for (i = 0; i < *depthp; i++) {
826 assert(node);
827 assert(node->nchildren > 0);
828 if (ctl_named_node(node->children) != NULL) {
829 const ctl_named_node_t *pnode = node;
830
831 /* Children are named. */
832 for (j = 0; j < node->nchildren; j++) {
833 const ctl_named_node_t *child =
834 ctl_named_children(node, j);
835 if (strlen(child->name) == elen &&
836 strncmp(elm, child->name, elen) == 0) {
837 node = child;
838 if (nodesp != NULL)
839 nodesp[i] =
840 (const ctl_node_t *)node;
841 mibp[i] = j;
842 break;
843 }
844 }
845 if (node == pnode) {
846 ret = ENOENT;
847 goto label_return;
848 }
849 } else {
850 uintmax_t index;
851 const ctl_indexed_node_t *inode;
852
853 /* Children are indexed. */
854 index = malloc_strtoumax(elm, NULL, 10);
855 if (index == UINTMAX_MAX || index > SIZE_T_MAX) {
856 ret = ENOENT;
857 goto label_return;
858 }
859
860 inode = ctl_indexed_node(node->children);
861 node = inode->index(mibp, *depthp, (size_t)index);
862 if (node == NULL) {
863 ret = ENOENT;
864 goto label_return;
865 }
866
867 if (nodesp != NULL)
868 nodesp[i] = (const ctl_node_t *)node;
869 mibp[i] = (size_t)index;
870 }
871
872 if (node->ctl != NULL) {
873 /* Terminal node. */
874 if (*dot != '\0') {
875 /*
876 * The name contains more elements than are
877 * in this path through the tree.
878 */
879 ret = ENOENT;
880 goto label_return;
881 }
882 /* Complete lookup successful. */
883 *depthp = i + 1;
884 break;
885 }
886
887 /* Update elm. */
888 if (*dot == '\0') {
889 /* No more elements. */
890 ret = ENOENT;
891 goto label_return;
892 }
893 elm = &dot[1];
894 dot = ((tdot = strchr(elm, '.')) != NULL) ? tdot :
895 strchr(elm, '\0');
896 elen = (size_t)((uintptr_t)dot - (uintptr_t)elm);
897 }
898
899 ret = 0;
900 label_return:
901 return (ret);
902 }
903
904 int
905 ctl_byname(const char *name, void *oldp, size_t *oldlenp, void *newp,
906 size_t newlen)
907 {
908 int ret;
909 size_t depth;
910 ctl_node_t const *nodes[CTL_MAX_DEPTH];
911 size_t mib[CTL_MAX_DEPTH];
912 const ctl_named_node_t *node;
913
914 if (!ctl_initialized && ctl_init()) {
915 ret = EAGAIN;
916 goto label_return;
917 }
918
919 depth = CTL_MAX_DEPTH;
920 ret = ctl_lookup(name, nodes, mib, &depth);
921 if (ret != 0)
922 goto label_return;
923
924 node = ctl_named_node(nodes[depth-1]);
925 if (node != NULL && node->ctl)
926 ret = node->ctl(mib, depth, oldp, oldlenp, newp, newlen);
927 else {
928 /* The name refers to a partial path through the ctl tree. */
929 ret = ENOENT;
930 }
931
932 label_return:
933 return(ret);
934 }
935
936 int
937 ctl_nametomib(const char *name, size_t *mibp, size_t *miblenp)
938 {
939 int ret;
940
941 if (!ctl_initialized && ctl_init()) {
942 ret = EAGAIN;
943 goto label_return;
944 }
945
946 ret = ctl_lookup(name, NULL, mibp, miblenp);
947 label_return:
948 return(ret);
949 }
950
951 int
952 ctl_bymib(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
953 void *newp, size_t newlen)
954 {
955 int ret;
956 const ctl_named_node_t *node;
957 size_t i;
958
959 if (!ctl_initialized && ctl_init()) {
960 ret = EAGAIN;
961 goto label_return;
962 }
963
964 /* Iterate down the tree. */
965 node = super_root_node;
966 for (i = 0; i < miblen; i++) {
967 assert(node);
968 assert(node->nchildren > 0);
969 if (ctl_named_node(node->children) != NULL) {
970 /* Children are named. */
971 if (node->nchildren <= (unsigned)mib[i]) {
972 ret = ENOENT;
973 goto label_return;
974 }
975 node = ctl_named_children(node, mib[i]);
976 } else {
977 const ctl_indexed_node_t *inode;
978
979 /* Indexed element. */
980 inode = ctl_indexed_node(node->children);
981 node = inode->index(mib, miblen, mib[i]);
982 if (node == NULL) {
983 ret = ENOENT;
984 goto label_return;
985 }
986 }
987 }
988
989 /* Call the ctl function. */
990 if (node && node->ctl)
991 ret = node->ctl(mib, miblen, oldp, oldlenp, newp, newlen);
992 else {
993 /* Partial MIB. */
994 ret = ENOENT;
995 }
996
997 label_return:
998 return(ret);
999 }
1000
1001 bool
1002 ctl_boot(void)
1003 {
1004
1005 if (malloc_mutex_init(&ctl_mtx))
1006 return (true);
1007
1008 ctl_initialized = false;
1009
1010 return (false);
1011 }
1012
1013 void
1014 ctl_prefork(void)
1015 {
1016
1017 malloc_mutex_prefork(&ctl_mtx);
1018 }
1019
1020 void
1021 ctl_postfork_parent(void)
1022 {
1023
1024 malloc_mutex_postfork_parent(&ctl_mtx);
1025 }
1026
1027 void
1028 ctl_postfork_child(void)
1029 {
1030
1031 malloc_mutex_postfork_child(&ctl_mtx);
1032 }
1033
1034 /******************************************************************************/
1035 /* *_ctl() functions. */
1036
1037 #define READONLY() do { \
1038 if (newp != NULL || newlen != 0) { \
1039 ret = EPERM; \
1040 goto label_return; \
1041 } \
1042 } while (0)
1043
1044 #define WRITEONLY() do { \
1045 if (oldp != NULL || oldlenp != NULL) { \
1046 ret = EPERM; \
1047 goto label_return; \
1048 } \
1049 } while (0)
1050
1051 #define READ_XOR_WRITE() do { \
1052 if ((oldp != NULL && oldlenp != NULL) && (newp != NULL || \
1053 newlen != 0)) { \
1054 ret = EPERM; \
1055 goto label_return; \
1056 } \
1057 } while (0)
1058
1059 #define READ(v, t) do { \
1060 if (oldp != NULL && oldlenp != NULL) { \
1061 if (*oldlenp != sizeof(t)) { \
1062 size_t copylen = (sizeof(t) <= *oldlenp) \
1063 ? sizeof(t) : *oldlenp; \
1064 memcpy(oldp, (void *)&(v), copylen); \
1065 ret = EINVAL; \
1066 goto label_return; \
1067 } \
1068 *(t *)oldp = (v); \
1069 } \
1070 } while (0)
1071
1072 #define WRITE(v, t) do { \
1073 if (newp != NULL) { \
1074 if (newlen != sizeof(t)) { \
1075 ret = EINVAL; \
1076 goto label_return; \
1077 } \
1078 (v) = *(t *)newp; \
1079 } \
1080 } while (0)
1081
1082 /*
1083 * There's a lot of code duplication in the following macros due to limitations
1084 * in how nested cpp macros are expanded.
1085 */
1086 #define CTL_RO_CLGEN(c, l, n, v, t) \
1087 static int \
1088 n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \
1089 void *newp, size_t newlen) \
1090 { \
1091 int ret; \
1092 t oldval; \
1093 \
1094 if (!(c)) \
1095 return (ENOENT); \
1096 if (l) \
1097 malloc_mutex_lock(&ctl_mtx); \
1098 READONLY(); \
1099 oldval = (v); \
1100 READ(oldval, t); \
1101 \
1102 ret = 0; \
1103 label_return: \
1104 if (l) \
1105 malloc_mutex_unlock(&ctl_mtx); \
1106 return (ret); \
1107 }
1108
1109 #define CTL_RO_CGEN(c, n, v, t) \
1110 static int \
1111 n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \
1112 void *newp, size_t newlen) \
1113 { \
1114 int ret; \
1115 t oldval; \
1116 \
1117 if (!(c)) \
1118 return (ENOENT); \
1119 malloc_mutex_lock(&ctl_mtx); \
1120 READONLY(); \
1121 oldval = (v); \
1122 READ(oldval, t); \
1123 \
1124 ret = 0; \
1125 label_return: \
1126 malloc_mutex_unlock(&ctl_mtx); \
1127 return (ret); \
1128 }
1129
1130 #define CTL_RO_GEN(n, v, t) \
1131 static int \
1132 n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \
1133 void *newp, size_t newlen) \
1134 { \
1135 int ret; \
1136 t oldval; \
1137 \
1138 malloc_mutex_lock(&ctl_mtx); \
1139 READONLY(); \
1140 oldval = (v); \
1141 READ(oldval, t); \
1142 \
1143 ret = 0; \
1144 label_return: \
1145 malloc_mutex_unlock(&ctl_mtx); \
1146 return (ret); \
1147 }
1148
1149 /*
1150 * ctl_mtx is not acquired, under the assumption that no pertinent data will
1151 * mutate during the call.
1152 */
1153 #define CTL_RO_NL_CGEN(c, n, v, t) \
1154 static int \
1155 n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \
1156 void *newp, size_t newlen) \
1157 { \
1158 int ret; \
1159 t oldval; \
1160 \
1161 if (!(c)) \
1162 return (ENOENT); \
1163 READONLY(); \
1164 oldval = (v); \
1165 READ(oldval, t); \
1166 \
1167 ret = 0; \
1168 label_return: \
1169 return (ret); \
1170 }
1171
1172 #define CTL_RO_NL_GEN(n, v, t) \
1173 static int \
1174 n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \
1175 void *newp, size_t newlen) \
1176 { \
1177 int ret; \
1178 t oldval; \
1179 \
1180 READONLY(); \
1181 oldval = (v); \
1182 READ(oldval, t); \
1183 \
1184 ret = 0; \
1185 label_return: \
1186 return (ret); \
1187 }
1188
1189 #define CTL_TSD_RO_NL_CGEN(c, n, m, t) \
1190 static int \
1191 n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \
1192 void *newp, size_t newlen) \
1193 { \
1194 int ret; \
1195 t oldval; \
1196 tsd_t *tsd; \
1197 \
1198 if (!(c)) \
1199 return (ENOENT); \
1200 READONLY(); \
1201 tsd = tsd_fetch(); \
1202 oldval = (m(tsd)); \
1203 READ(oldval, t); \
1204 \
1205 ret = 0; \
1206 label_return: \
1207 return (ret); \
1208 }
1209
1210 #define CTL_RO_CONFIG_GEN(n, t) \
1211 static int \
1212 n##_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp, \
1213 void *newp, size_t newlen) \
1214 { \
1215 int ret; \
1216 t oldval; \
1217 \
1218 READONLY(); \
1219 oldval = n; \
1220 READ(oldval, t); \
1221 \
1222 ret = 0; \
1223 label_return: \
1224 return (ret); \
1225 }
1226
1227 /******************************************************************************/
1228
1229 CTL_RO_NL_GEN(version, JEMALLOC_VERSION, const char *)
1230
1231 static int
1232 epoch_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
1233 void *newp, size_t newlen)
1234 {
1235 int ret;
1236 UNUSED uint64_t newval;
1237
1238 malloc_mutex_lock(&ctl_mtx);
1239 WRITE(newval, uint64_t);
1240 if (newp != NULL)
1241 ctl_refresh();
1242 READ(ctl_epoch, uint64_t);
1243
1244 ret = 0;
1245 label_return:
1246 malloc_mutex_unlock(&ctl_mtx);
1247 return (ret);
1248 }
1249
1250 /******************************************************************************/
1251
1252 CTL_RO_CONFIG_GEN(config_cache_oblivious, bool)
1253 CTL_RO_CONFIG_GEN(config_debug, bool)
1254 CTL_RO_CONFIG_GEN(config_fill, bool)
1255 CTL_RO_CONFIG_GEN(config_lazy_lock, bool)
1256 CTL_RO_CONFIG_GEN(config_malloc_conf, const char *)
1257 CTL_RO_CONFIG_GEN(config_munmap, bool)
1258 CTL_RO_CONFIG_GEN(config_prof, bool)
1259 CTL_RO_CONFIG_GEN(config_prof_libgcc, bool)
1260 CTL_RO_CONFIG_GEN(config_prof_libunwind, bool)
1261 CTL_RO_CONFIG_GEN(config_stats, bool)
1262 CTL_RO_CONFIG_GEN(config_tcache, bool)
1263 CTL_RO_CONFIG_GEN(config_tls, bool)
1264 CTL_RO_CONFIG_GEN(config_utrace, bool)
1265 CTL_RO_CONFIG_GEN(config_valgrind, bool)
1266 CTL_RO_CONFIG_GEN(config_xmalloc, bool)
1267
1268 /******************************************************************************/
1269
1270 CTL_RO_NL_GEN(opt_abort, opt_abort, bool)
1271 CTL_RO_NL_GEN(opt_dss, opt_dss, const char *)
1272 CTL_RO_NL_GEN(opt_lg_chunk, opt_lg_chunk, size_t)
1273 CTL_RO_NL_GEN(opt_narenas, opt_narenas, unsigned)
1274 CTL_RO_NL_GEN(opt_purge, purge_mode_names[opt_purge], const char *)
1275 CTL_RO_NL_GEN(opt_lg_dirty_mult, opt_lg_dirty_mult, ssize_t)
1276 CTL_RO_NL_GEN(opt_decay_time, opt_decay_time, ssize_t)
1277 CTL_RO_NL_GEN(opt_stats_print, opt_stats_print, bool)
1278 CTL_RO_NL_CGEN(config_fill, opt_junk, opt_junk, const char *)
1279 CTL_RO_NL_CGEN(config_fill, opt_quarantine, opt_quarantine, size_t)
1280 CTL_RO_NL_CGEN(config_fill, opt_redzone, opt_redzone, bool)
1281 CTL_RO_NL_CGEN(config_fill, opt_zero, opt_zero, bool)
1282 CTL_RO_NL_CGEN(config_utrace, opt_utrace, opt_utrace, bool)
1283 CTL_RO_NL_CGEN(config_xmalloc, opt_xmalloc, opt_xmalloc, bool)
1284 CTL_RO_NL_CGEN(config_tcache, opt_tcache, opt_tcache, bool)
1285 CTL_RO_NL_CGEN(config_tcache, opt_lg_tcache_max, opt_lg_tcache_max, ssize_t)
1286 CTL_RO_NL_CGEN(config_prof, opt_prof, opt_prof, bool)
1287 CTL_RO_NL_CGEN(config_prof, opt_prof_prefix, opt_prof_prefix, const char *)
1288 CTL_RO_NL_CGEN(config_prof, opt_prof_active, opt_prof_active, bool)
1289 CTL_RO_NL_CGEN(config_prof, opt_prof_thread_active_init,
1290 opt_prof_thread_active_init, bool)
1291 CTL_RO_NL_CGEN(config_prof, opt_lg_prof_sample, opt_lg_prof_sample, size_t)
1292 CTL_RO_NL_CGEN(config_prof, opt_prof_accum, opt_prof_accum, bool)
1293 CTL_RO_NL_CGEN(config_prof, opt_lg_prof_interval, opt_lg_prof_interval, ssize_t)
1294 CTL_RO_NL_CGEN(config_prof, opt_prof_gdump, opt_prof_gdump, bool)
1295 CTL_RO_NL_CGEN(config_prof, opt_prof_final, opt_prof_final, bool)
1296 CTL_RO_NL_CGEN(config_prof, opt_prof_leak, opt_prof_leak, bool)
1297
1298 /******************************************************************************/
1299
1300 static int
1301 thread_arena_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
1302 void *newp, size_t newlen)
1303 {
1304 int ret;
1305 tsd_t *tsd;
1306 arena_t *oldarena;
1307 unsigned newind, oldind;
1308
1309 tsd = tsd_fetch();
1310 oldarena = arena_choose(tsd, NULL);
1311 if (oldarena == NULL)
1312 return (EAGAIN);
1313
1314 malloc_mutex_lock(&ctl_mtx);
1315 newind = oldind = oldarena->ind;
1316 WRITE(newind, unsigned);
1317 READ(oldind, unsigned);
1318 if (newind != oldind) {
1319 arena_t *newarena;
1320
1321 if (newind >= ctl_stats.narenas) {
1322 /* New arena index is out of range. */
1323 ret = EFAULT;
1324 goto label_return;
1325 }
1326
1327 /* Initialize arena if necessary. */
1328 newarena = arena_get(newind, true);
1329 if (newarena == NULL) {
1330 ret = EAGAIN;
1331 goto label_return;
1332 }
1333 /* Set new arena/tcache associations. */
1334 arena_migrate(tsd, oldind, newind);
1335 if (config_tcache) {
1336 tcache_t *tcache = tsd_tcache_get(tsd);
1337 if (tcache != NULL) {
1338 tcache_arena_reassociate(tcache, oldarena,
1339 newarena);
1340 }
1341 }
1342 }
1343
1344 ret = 0;
1345 label_return:
1346 malloc_mutex_unlock(&ctl_mtx);
1347 return (ret);
1348 }
1349
1350 CTL_TSD_RO_NL_CGEN(config_stats, thread_allocated, tsd_thread_allocated_get,
1351 uint64_t)
1352 CTL_TSD_RO_NL_CGEN(config_stats, thread_allocatedp, tsd_thread_allocatedp_get,
1353 uint64_t *)
1354 CTL_TSD_RO_NL_CGEN(config_stats, thread_deallocated, tsd_thread_deallocated_get,
1355 uint64_t)
1356 CTL_TSD_RO_NL_CGEN(config_stats, thread_deallocatedp,
1357 tsd_thread_deallocatedp_get, uint64_t *)
1358
1359 static int
1360 thread_tcache_enabled_ctl(const size_t *mib, size_t miblen, void *oldp,
1361 size_t *oldlenp, void *newp, size_t newlen)
1362 {
1363 int ret;
1364 bool oldval;
1365
1366 if (!config_tcache)
1367 return (ENOENT);
1368
1369 oldval = tcache_enabled_get();
1370 if (newp != NULL) {
1371 if (newlen != sizeof(bool)) {
1372 ret = EINVAL;
1373 goto label_return;
1374 }
1375 tcache_enabled_set(*(bool *)newp);
1376 }
1377 READ(oldval, bool);
1378
1379 ret = 0;
1380 label_return:
1381 return (ret);
1382 }
1383
1384 static int
1385 thread_tcache_flush_ctl(const size_t *mib, size_t miblen, void *oldp,
1386 size_t *oldlenp, void *newp, size_t newlen)
1387 {
1388 int ret;
1389
1390 if (!config_tcache)
1391 return (ENOENT);
1392
1393 READONLY();
1394 WRITEONLY();
1395
1396 tcache_flush();
1397
1398 ret = 0;
1399 label_return:
1400 return (ret);
1401 }
1402
1403 static int
1404 thread_prof_name_ctl(const size_t *mib, size_t miblen, void *oldp,
1405 size_t *oldlenp, void *newp, size_t newlen)
1406 {
1407 int ret;
1408
1409 if (!config_prof)
1410 return (ENOENT);
1411
1412 READ_XOR_WRITE();
1413
1414 if (newp != NULL) {
1415 tsd_t *tsd;
1416
1417 if (newlen != sizeof(const char *)) {
1418 ret = EINVAL;
1419 goto label_return;
1420 }
1421
1422 tsd = tsd_fetch();
1423
1424 if ((ret = prof_thread_name_set(tsd, *(const char **)newp)) !=
1425 0)
1426 goto label_return;
1427 } else {
1428 const char *oldname = prof_thread_name_get();
1429 READ(oldname, const char *);
1430 }
1431
1432 ret = 0;
1433 label_return:
1434 return (ret);
1435 }
1436
1437 static int
1438 thread_prof_active_ctl(const size_t *mib, size_t miblen, void *oldp,
1439 size_t *oldlenp, void *newp, size_t newlen)
1440 {
1441 int ret;
1442 bool oldval;
1443
1444 if (!config_prof)
1445 return (ENOENT);
1446
1447 oldval = prof_thread_active_get();
1448 if (newp != NULL) {
1449 if (newlen != sizeof(bool)) {
1450 ret = EINVAL;
1451 goto label_return;
1452 }
1453 if (prof_thread_active_set(*(bool *)newp)) {
1454 ret = EAGAIN;
1455 goto label_return;
1456 }
1457 }
1458 READ(oldval, bool);
1459
1460 ret = 0;
1461 label_return:
1462 return (ret);
1463 }
1464
1465 /******************************************************************************/
1466
1467 static int
1468 tcache_create_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
1469 void *newp, size_t newlen)
1470 {
1471 int ret;
1472 tsd_t *tsd;
1473 unsigned tcache_ind;
1474
1475 if (!config_tcache)
1476 return (ENOENT);
1477
1478 tsd = tsd_fetch();
1479
1480 malloc_mutex_lock(&ctl_mtx);
1481 READONLY();
1482 if (tcaches_create(tsd, &tcache_ind)) {
1483 ret = EFAULT;
1484 goto label_return;
1485 }
1486 READ(tcache_ind, unsigned);
1487
1488 ret = 0;
1489 label_return:
1490 malloc_mutex_unlock(&ctl_mtx);
1491 return (ret);
1492 }
1493
1494 static int
1495 tcache_flush_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
1496 void *newp, size_t newlen)
1497 {
1498 int ret;
1499 tsd_t *tsd;
1500 unsigned tcache_ind;
1501
1502 if (!config_tcache)
1503 return (ENOENT);
1504
1505 tsd = tsd_fetch();
1506
1507 WRITEONLY();
1508 tcache_ind = UINT_MAX;
1509 WRITE(tcache_ind, unsigned);
1510 if (tcache_ind == UINT_MAX) {
1511 ret = EFAULT;
1512 goto label_return;
1513 }
1514 tcaches_flush(tsd, tcache_ind);
1515
1516 ret = 0;
1517 label_return:
1518 return (ret);
1519 }
1520
1521 static int
1522 tcache_destroy_ctl(const size_t *mib, size_t miblen, void *oldp,
1523 size_t *oldlenp, void *newp, size_t newlen)
1524 {
1525 int ret;
1526 tsd_t *tsd;
1527 unsigned tcache_ind;
1528
1529 if (!config_tcache)
1530 return (ENOENT);
1531
1532 tsd = tsd_fetch();
1533
1534 WRITEONLY();
1535 tcache_ind = UINT_MAX;
1536 WRITE(tcache_ind, unsigned);
1537 if (tcache_ind == UINT_MAX) {
1538 ret = EFAULT;
1539 goto label_return;
1540 }
1541 tcaches_destroy(tsd, tcache_ind);
1542
1543 ret = 0;
1544 label_return:
1545 return (ret);
1546 }
1547
1548 /******************************************************************************/
1549
1550 static void
1551 arena_i_purge(unsigned arena_ind, bool all)
1552 {
1553
1554 malloc_mutex_lock(&ctl_mtx);
1555 {
1556 unsigned narenas = ctl_stats.narenas;
1557
1558 if (arena_ind == narenas) {
1559 unsigned i;
1560 VARIABLE_ARRAY(arena_t *, tarenas, narenas);
1561
1562 for (i = 0; i < narenas; i++)
1563 tarenas[i] = arena_get(i, false);
1564
1565 /*
1566 * No further need to hold ctl_mtx, since narenas and
1567 * tarenas contain everything needed below.
1568 */
1569 malloc_mutex_unlock(&ctl_mtx);
1570
1571 for (i = 0; i < narenas; i++) {
1572 if (tarenas[i] != NULL)
1573 arena_purge(tarenas[i], all);
1574 }
1575 } else {
1576 arena_t *tarena;
1577
1578 assert(arena_ind < narenas);
1579
1580 tarena = arena_get(arena_ind, false);
1581
1582 /* No further need to hold ctl_mtx. */
1583 malloc_mutex_unlock(&ctl_mtx);
1584
1585 if (tarena != NULL)
1586 arena_purge(tarena, all);
1587 }
1588 }
1589 }
1590
1591 static int
1592 arena_i_purge_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
1593 void *newp, size_t newlen)
1594 {
1595 int ret;
1596
1597 READONLY();
1598 WRITEONLY();
1599 arena_i_purge((unsigned)mib[1], true);
1600
1601 ret = 0;
1602 label_return:
1603 return (ret);
1604 }
1605
1606 static int
1607 arena_i_decay_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
1608 void *newp, size_t newlen)
1609 {
1610 int ret;
1611
1612 READONLY();
1613 WRITEONLY();
1614 arena_i_purge((unsigned)mib[1], false);
1615
1616 ret = 0;
1617 label_return:
1618 return (ret);
1619 }
1620
1621 static int
1622 arena_i_dss_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
1623 void *newp, size_t newlen)
1624 {
1625 int ret;
1626 const char *dss = NULL;
1627 unsigned arena_ind = (unsigned)mib[1];
1628 dss_prec_t dss_prec_old = dss_prec_limit;
1629 dss_prec_t dss_prec = dss_prec_limit;
1630
1631 malloc_mutex_lock(&ctl_mtx);
1632 WRITE(dss, const char *);
1633 if (dss != NULL) {
1634 int i;
1635 bool match = false;
1636
1637 for (i = 0; i < dss_prec_limit; i++) {
1638 if (strcmp(dss_prec_names[i], dss) == 0) {
1639 dss_prec = i;
1640 match = true;
1641 break;
1642 }
1643 }
1644
1645 if (!match) {
1646 ret = EINVAL;
1647 goto label_return;
1648 }
1649 }
1650
1651 if (arena_ind < ctl_stats.narenas) {
1652 arena_t *arena = arena_get(arena_ind, false);
1653 if (arena == NULL || (dss_prec != dss_prec_limit &&
1654 arena_dss_prec_set(arena, dss_prec))) {
1655 ret = EFAULT;
1656 goto label_return;
1657 }
1658 dss_prec_old = arena_dss_prec_get(arena);
1659 } else {
1660 if (dss_prec != dss_prec_limit &&
1661 chunk_dss_prec_set(dss_prec)) {
1662 ret = EFAULT;
1663 goto label_return;
1664 }
1665 dss_prec_old = chunk_dss_prec_get();
1666 }
1667
1668 dss = dss_prec_names[dss_prec_old];
1669 READ(dss, const char *);
1670
1671 ret = 0;
1672 label_return:
1673 malloc_mutex_unlock(&ctl_mtx);
1674 return (ret);
1675 }
1676
1677 static int
1678 arena_i_lg_dirty_mult_ctl(const size_t *mib, size_t miblen, void *oldp,
1679 size_t *oldlenp, void *newp, size_t newlen)
1680 {
1681 int ret;
1682 unsigned arena_ind = (unsigned)mib[1];
1683 arena_t *arena;
1684
1685 arena = arena_get(arena_ind, false);
1686 if (arena == NULL) {
1687 ret = EFAULT;
1688 goto label_return;
1689 }
1690
1691 if (oldp != NULL && oldlenp != NULL) {
1692 size_t oldval = arena_lg_dirty_mult_get(arena);
1693 READ(oldval, ssize_t);
1694 }
1695 if (newp != NULL) {
1696 if (newlen != sizeof(ssize_t)) {
1697 ret = EINVAL;
1698 goto label_return;
1699 }
1700 if (arena_lg_dirty_mult_set(arena, *(ssize_t *)newp)) {
1701 ret = EFAULT;
1702 goto label_return;
1703 }
1704 }
1705
1706 ret = 0;
1707 label_return:
1708 return (ret);
1709 }
1710
1711 static int
1712 arena_i_decay_time_ctl(const size_t *mib, size_t miblen, void *oldp,
1713 size_t *oldlenp, void *newp, size_t newlen)
1714 {
1715 int ret;
1716 unsigned arena_ind = (unsigned)mib[1];
1717 arena_t *arena;
1718
1719 arena = arena_get(arena_ind, false);
1720 if (arena == NULL) {
1721 ret = EFAULT;
1722 goto label_return;
1723 }
1724
1725 if (oldp != NULL && oldlenp != NULL) {
1726 size_t oldval = arena_decay_time_get(arena);
1727 READ(oldval, ssize_t);
1728 }
1729 if (newp != NULL) {
1730 if (newlen != sizeof(ssize_t)) {
1731 ret = EINVAL;
1732 goto label_return;
1733 }
1734 if (arena_decay_time_set(arena, *(ssize_t *)newp)) {
1735 ret = EFAULT;
1736 goto label_return;
1737 }
1738 }
1739
1740 ret = 0;
1741 label_return:
1742 return (ret);
1743 }
1744
1745 static int
1746 arena_i_chunk_hooks_ctl(const size_t *mib, size_t miblen, void *oldp,
1747 size_t *oldlenp, void *newp, size_t newlen)
1748 {
1749 int ret;
1750 unsigned arena_ind = (unsigned)mib[1];
1751 arena_t *arena;
1752
1753 malloc_mutex_lock(&ctl_mtx);
1754 if (arena_ind < narenas_total_get() && (arena =
1755 arena_get(arena_ind, false)) != NULL) {
1756 if (newp != NULL) {
1757 chunk_hooks_t old_chunk_hooks, new_chunk_hooks;
1758 WRITE(new_chunk_hooks, chunk_hooks_t);
1759 old_chunk_hooks = chunk_hooks_set(arena,
1760 &new_chunk_hooks);
1761 READ(old_chunk_hooks, chunk_hooks_t);
1762 } else {
1763 chunk_hooks_t old_chunk_hooks = chunk_hooks_get(arena);
1764 READ(old_chunk_hooks, chunk_hooks_t);
1765 }
1766 } else {
1767 ret = EFAULT;
1768 goto label_return;
1769 }
1770 ret = 0;
1771 label_return:
1772 malloc_mutex_unlock(&ctl_mtx);
1773 return (ret);
1774 }
1775
1776 static const ctl_named_node_t *
1777 arena_i_index(const size_t *mib, size_t miblen, size_t i)
1778 {
1779 const ctl_named_node_t * ret;
1780
1781 malloc_mutex_lock(&ctl_mtx);
1782 if (i > ctl_stats.narenas) {
1783 ret = NULL;
1784 goto label_return;
1785 }
1786
1787 ret = super_arena_i_node;
1788 label_return:
1789 malloc_mutex_unlock(&ctl_mtx);
1790 return (ret);
1791 }
1792
1793 /******************************************************************************/
1794
1795 static int
1796 arenas_narenas_ctl(const size_t *mib, size_t miblen, void *oldp,
1797 size_t *oldlenp, void *newp, size_t newlen)
1798 {
1799 int ret;
1800 unsigned narenas;
1801
1802 malloc_mutex_lock(&ctl_mtx);
1803 READONLY();
1804 if (*oldlenp != sizeof(unsigned)) {
1805 ret = EINVAL;
1806 goto label_return;
1807 }
1808 narenas = ctl_stats.narenas;
1809 READ(narenas, unsigned);
1810
1811 ret = 0;
1812 label_return:
1813 malloc_mutex_unlock(&ctl_mtx);
1814 return (ret);
1815 }
1816
1817 static int
1818 arenas_initialized_ctl(const size_t *mib, size_t miblen, void *oldp,
1819 size_t *oldlenp, void *newp, size_t newlen)
1820 {
1821 int ret;
1822 unsigned nread, i;
1823
1824 malloc_mutex_lock(&ctl_mtx);
1825 READONLY();
1826 if (*oldlenp != ctl_stats.narenas * sizeof(bool)) {
1827 ret = EINVAL;
1828 nread = (*oldlenp < ctl_stats.narenas * sizeof(bool))
1829 ? (unsigned)(*oldlenp / sizeof(bool)) : ctl_stats.narenas;
1830 } else {
1831 ret = 0;
1832 nread = ctl_stats.narenas;
1833 }
1834
1835 for (i = 0; i < nread; i++)
1836 ((bool *)oldp)[i] = ctl_stats.arenas[i].initialized;
1837
1838 label_return:
1839 malloc_mutex_unlock(&ctl_mtx);
1840 return (ret);
1841 }
1842
1843 static int
1844 arenas_lg_dirty_mult_ctl(const size_t *mib, size_t miblen, void *oldp,
1845 size_t *oldlenp, void *newp, size_t newlen)
1846 {
1847 int ret;
1848
1849 if (oldp != NULL && oldlenp != NULL) {
1850 size_t oldval = arena_lg_dirty_mult_default_get();
1851 READ(oldval, ssize_t);
1852 }
1853 if (newp != NULL) {
1854 if (newlen != sizeof(ssize_t)) {
1855 ret = EINVAL;
1856 goto label_return;
1857 }
1858 if (arena_lg_dirty_mult_default_set(*(ssize_t *)newp)) {
1859 ret = EFAULT;
1860 goto label_return;
1861 }
1862 }
1863
1864 ret = 0;
1865 label_return:
1866 return (ret);
1867 }
1868
1869 static int
1870 arenas_decay_time_ctl(const size_t *mib, size_t miblen, void *oldp,
1871 size_t *oldlenp, void *newp, size_t newlen)
1872 {
1873 int ret;
1874
1875 if (oldp != NULL && oldlenp != NULL) {
1876 size_t oldval = arena_decay_time_default_get();
1877 READ(oldval, ssize_t);
1878 }
1879 if (newp != NULL) {
1880 if (newlen != sizeof(ssize_t)) {
1881 ret = EINVAL;
1882 goto label_return;
1883 }
1884 if (arena_decay_time_default_set(*(ssize_t *)newp)) {
1885 ret = EFAULT;
1886 goto label_return;
1887 }
1888 }
1889
1890 ret = 0;
1891 label_return:
1892 return (ret);
1893 }
1894
1895 CTL_RO_NL_GEN(arenas_quantum, QUANTUM, size_t)
1896 CTL_RO_NL_GEN(arenas_page, PAGE, size_t)
1897 CTL_RO_NL_CGEN(config_tcache, arenas_tcache_max, tcache_maxclass, size_t)
1898 CTL_RO_NL_GEN(arenas_nbins, NBINS, unsigned)
1899 CTL_RO_NL_CGEN(config_tcache, arenas_nhbins, nhbins, unsigned)
1900 CTL_RO_NL_GEN(arenas_bin_i_size, arena_bin_info[mib[2]].reg_size, size_t)
1901 CTL_RO_NL_GEN(arenas_bin_i_nregs, arena_bin_info[mib[2]].nregs, uint32_t)
1902 CTL_RO_NL_GEN(arenas_bin_i_run_size, arena_bin_info[mib[2]].run_size, size_t)
1903 static const ctl_named_node_t *
1904 arenas_bin_i_index(const size_t *mib, size_t miblen, size_t i)
1905 {
1906
1907 if (i > NBINS)
1908 return (NULL);
1909 return (super_arenas_bin_i_node);
1910 }
1911
1912 CTL_RO_NL_GEN(arenas_nlruns, nlclasses, unsigned)
1913 CTL_RO_NL_GEN(arenas_lrun_i_size, index2size(NBINS+(szind_t)mib[2]), size_t)
1914 static const ctl_named_node_t *
1915 arenas_lrun_i_index(const size_t *mib, size_t miblen, size_t i)
1916 {
1917
1918 if (i > nlclasses)
1919 return (NULL);
1920 return (super_arenas_lrun_i_node);
1921 }
1922
1923 CTL_RO_NL_GEN(arenas_nhchunks, nhclasses, unsigned)
1924 CTL_RO_NL_GEN(arenas_hchunk_i_size, index2size(NBINS+nlclasses+(szind_t)mib[2]),
1925 size_t)
1926 static const ctl_named_node_t *
1927 arenas_hchunk_i_index(const size_t *mib, size_t miblen, size_t i)
1928 {
1929
1930 if (i > nhclasses)
1931 return (NULL);
1932 return (super_arenas_hchunk_i_node);
1933 }
1934
1935 static int
1936 arenas_extend_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
1937 void *newp, size_t newlen)
1938 {
1939 int ret;
1940 unsigned narenas;
1941
1942 malloc_mutex_lock(&ctl_mtx);
1943 READONLY();
1944 if (ctl_grow()) {
1945 ret = EAGAIN;
1946 goto label_return;
1947 }
1948 narenas = ctl_stats.narenas - 1;
1949 READ(narenas, unsigned);
1950
1951 ret = 0;
1952 label_return:
1953 malloc_mutex_unlock(&ctl_mtx);
1954 return (ret);
1955 }
1956
1957 /******************************************************************************/
1958
1959 static int
1960 prof_thread_active_init_ctl(const size_t *mib, size_t miblen, void *oldp,
1961 size_t *oldlenp, void *newp, size_t newlen)
1962 {
1963 int ret;
1964 bool oldval;
1965
1966 if (!config_prof)
1967 return (ENOENT);
1968
1969 if (newp != NULL) {
1970 if (newlen != sizeof(bool)) {
1971 ret = EINVAL;
1972 goto label_return;
1973 }
1974 oldval = prof_thread_active_init_set(*(bool *)newp);
1975 } else
1976 oldval = prof_thread_active_init_get();
1977 READ(oldval, bool);
1978
1979 ret = 0;
1980 label_return:
1981 return (ret);
1982 }
1983
1984 static int
1985 prof_active_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
1986 void *newp, size_t newlen)
1987 {
1988 int ret;
1989 bool oldval;
1990
1991 if (!config_prof)
1992 return (ENOENT);
1993
1994 if (newp != NULL) {
1995 if (newlen != sizeof(bool)) {
1996 ret = EINVAL;
1997 goto label_return;
1998 }
1999 oldval = prof_active_set(*(bool *)newp);
2000 } else
2001 oldval = prof_active_get();
2002 READ(oldval, bool);
2003
2004 ret = 0;
2005 label_return:
2006 return (ret);
2007 }
2008
2009 static int
2010 prof_dump_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
2011 void *newp, size_t newlen)
2012 {
2013 int ret;
2014 const char *filename = NULL;
2015
2016 if (!config_prof)
2017 return (ENOENT);
2018
2019 WRITEONLY();
2020 WRITE(filename, const char *);
2021
2022 if (prof_mdump(filename)) {
2023 ret = EFAULT;
2024 goto label_return;
2025 }
2026
2027 ret = 0;
2028 label_return:
2029 return (ret);
2030 }
2031
2032 static int
2033 prof_gdump_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
2034 void *newp, size_t newlen)
2035 {
2036 int ret;
2037 bool oldval;
2038
2039 if (!config_prof)
2040 return (ENOENT);
2041
2042 if (newp != NULL) {
2043 if (newlen != sizeof(bool)) {
2044 ret = EINVAL;
2045 goto label_return;
2046 }
2047 oldval = prof_gdump_set(*(bool *)newp);
2048 } else
2049 oldval = prof_gdump_get();
2050 READ(oldval, bool);
2051
2052 ret = 0;
2053 label_return:
2054 return (ret);
2055 }
2056
2057 static int
2058 prof_reset_ctl(const size_t *mib, size_t miblen, void *oldp, size_t *oldlenp,
2059 void *newp, size_t newlen)
2060 {
2061 int ret;
2062 size_t lg_sample = lg_prof_sample;
2063 tsd_t *tsd;
2064
2065 if (!config_prof)
2066 return (ENOENT);
2067
2068 WRITEONLY();
2069 WRITE(lg_sample, size_t);
2070 if (lg_sample >= (sizeof(uint64_t) << 3))
2071 lg_sample = (sizeof(uint64_t) << 3) - 1;
2072
2073 tsd = tsd_fetch();
2074
2075 prof_reset(tsd, lg_sample);
2076
2077 ret = 0;
2078 label_return:
2079 return (ret);
2080 }
2081
2082 CTL_RO_NL_CGEN(config_prof, prof_interval, prof_interval, uint64_t)
2083 CTL_RO_NL_CGEN(config_prof, lg_prof_sample, lg_prof_sample, size_t)
2084
2085 /******************************************************************************/
2086
2087 CTL_RO_CGEN(config_stats, stats_cactive, &stats_cactive, size_t *)
2088 CTL_RO_CGEN(config_stats, stats_allocated, ctl_stats.allocated, size_t)
2089 CTL_RO_CGEN(config_stats, stats_active, ctl_stats.active, size_t)
2090 CTL_RO_CGEN(config_stats, stats_metadata, ctl_stats.metadata, size_t)
2091 CTL_RO_CGEN(config_stats, stats_resident, ctl_stats.resident, size_t)
2092 CTL_RO_CGEN(config_stats, stats_mapped, ctl_stats.mapped, size_t)
2093
2094 CTL_RO_GEN(stats_arenas_i_dss, ctl_stats.arenas[mib[2]].dss, const char *)
2095 CTL_RO_GEN(stats_arenas_i_lg_dirty_mult, ctl_stats.arenas[mib[2]].lg_dirty_mult,
2096 ssize_t)
2097 CTL_RO_GEN(stats_arenas_i_decay_time, ctl_stats.arenas[mib[2]].decay_time,
2098 ssize_t)
2099 CTL_RO_GEN(stats_arenas_i_nthreads, ctl_stats.arenas[mib[2]].nthreads, unsigned)
2100 CTL_RO_GEN(stats_arenas_i_pactive, ctl_stats.arenas[mib[2]].pactive, size_t)
2101 CTL_RO_GEN(stats_arenas_i_pdirty, ctl_stats.arenas[mib[2]].pdirty, size_t)
2102 CTL_RO_CGEN(config_stats, stats_arenas_i_mapped,
2103 ctl_stats.arenas[mib[2]].astats.mapped, size_t)
2104 CTL_RO_CGEN(config_stats, stats_arenas_i_npurge,
2105 ctl_stats.arenas[mib[2]].astats.npurge, uint64_t)
2106 CTL_RO_CGEN(config_stats, stats_arenas_i_nmadvise,
2107 ctl_stats.arenas[mib[2]].astats.nmadvise, uint64_t)
2108 CTL_RO_CGEN(config_stats, stats_arenas_i_purged,
2109 ctl_stats.arenas[mib[2]].astats.purged, uint64_t)
2110 CTL_RO_CGEN(config_stats, stats_arenas_i_metadata_mapped,
2111 ctl_stats.arenas[mib[2]].astats.metadata_mapped, size_t)
2112 CTL_RO_CGEN(config_stats, stats_arenas_i_metadata_allocated,
2113 ctl_stats.arenas[mib[2]].astats.metadata_allocated, size_t)
2114
2115 CTL_RO_CGEN(config_stats, stats_arenas_i_small_allocated,
2116 ctl_stats.arenas[mib[2]].allocated_small, size_t)
2117 CTL_RO_CGEN(config_stats, stats_arenas_i_small_nmalloc,
2118 ctl_stats.arenas[mib[2]].nmalloc_small, uint64_t)
2119 CTL_RO_CGEN(config_stats, stats_arenas_i_small_ndalloc,
2120 ctl_stats.arenas[mib[2]].ndalloc_small, uint64_t)
2121 CTL_RO_CGEN(config_stats, stats_arenas_i_small_nrequests,
2122 ctl_stats.arenas[mib[2]].nrequests_small, uint64_t)
2123 CTL_RO_CGEN(config_stats, stats_arenas_i_large_allocated,
2124 ctl_stats.arenas[mib[2]].astats.allocated_large, size_t)
2125 CTL_RO_CGEN(config_stats, stats_arenas_i_large_nmalloc,
2126 ctl_stats.arenas[mib[2]].astats.nmalloc_large, uint64_t)
2127 CTL_RO_CGEN(config_stats, stats_arenas_i_large_ndalloc,
2128 ctl_stats.arenas[mib[2]].astats.ndalloc_large, uint64_t)
2129 CTL_RO_CGEN(config_stats, stats_arenas_i_large_nrequests,
2130 ctl_stats.arenas[mib[2]].astats.nrequests_large, uint64_t)
2131 CTL_RO_CGEN(config_stats, stats_arenas_i_huge_allocated,
2132 ctl_stats.arenas[mib[2]].astats.allocated_huge, size_t)
2133 CTL_RO_CGEN(config_stats, stats_arenas_i_huge_nmalloc,
2134 ctl_stats.arenas[mib[2]].astats.nmalloc_huge, uint64_t)
2135 CTL_RO_CGEN(config_stats, stats_arenas_i_huge_ndalloc,
2136 ctl_stats.arenas[mib[2]].astats.ndalloc_huge, uint64_t)
2137 CTL_RO_CGEN(config_stats, stats_arenas_i_huge_nrequests,
2138 ctl_stats.arenas[mib[2]].astats.nmalloc_huge, uint64_t) /* Intentional. */
2139
2140 CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_nmalloc,
2141 ctl_stats.arenas[mib[2]].bstats[mib[4]].nmalloc, uint64_t)
2142 CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_ndalloc,
2143 ctl_stats.arenas[mib[2]].bstats[mib[4]].ndalloc, uint64_t)
2144 CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_nrequests,
2145 ctl_stats.arenas[mib[2]].bstats[mib[4]].nrequests, uint64_t)
2146 CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_curregs,
2147 ctl_stats.arenas[mib[2]].bstats[mib[4]].curregs, size_t)
2148 CTL_RO_CGEN(config_stats && config_tcache, stats_arenas_i_bins_j_nfills,
2149 ctl_stats.arenas[mib[2]].bstats[mib[4]].nfills, uint64_t)
2150 CTL_RO_CGEN(config_stats && config_tcache, stats_arenas_i_bins_j_nflushes,
2151 ctl_stats.arenas[mib[2]].bstats[mib[4]].nflushes, uint64_t)
2152 CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_nruns,
2153 ctl_stats.arenas[mib[2]].bstats[mib[4]].nruns, uint64_t)
2154 CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_nreruns,
2155 ctl_stats.arenas[mib[2]].bstats[mib[4]].reruns, uint64_t)
2156 CTL_RO_CGEN(config_stats, stats_arenas_i_bins_j_curruns,
2157 ctl_stats.arenas[mib[2]].bstats[mib[4]].curruns, size_t)
2158
2159 static const ctl_named_node_t *
2160 stats_arenas_i_bins_j_index(const size_t *mib, size_t miblen, size_t j)
2161 {
2162
2163 if (j > NBINS)
2164 return (NULL);
2165 return (super_stats_arenas_i_bins_j_node);
2166 }
2167
2168 CTL_RO_CGEN(config_stats, stats_arenas_i_lruns_j_nmalloc,
2169 ctl_stats.arenas[mib[2]].lstats[mib[4]].nmalloc, uint64_t)
2170 CTL_RO_CGEN(config_stats, stats_arenas_i_lruns_j_ndalloc,
2171 ctl_stats.arenas[mib[2]].lstats[mib[4]].ndalloc, uint64_t)
2172 CTL_RO_CGEN(config_stats, stats_arenas_i_lruns_j_nrequests,
2173 ctl_stats.arenas[mib[2]].lstats[mib[4]].nrequests, uint64_t)
2174 CTL_RO_CGEN(config_stats, stats_arenas_i_lruns_j_curruns,
2175 ctl_stats.arenas[mib[2]].lstats[mib[4]].curruns, size_t)
2176
2177 static const ctl_named_node_t *
2178 stats_arenas_i_lruns_j_index(const size_t *mib, size_t miblen, size_t j)
2179 {
2180
2181 if (j > nlclasses)
2182 return (NULL);
2183 return (super_stats_arenas_i_lruns_j_node);
2184 }
2185
2186 CTL_RO_CGEN(config_stats, stats_arenas_i_hchunks_j_nmalloc,
2187 ctl_stats.arenas[mib[2]].hstats[mib[4]].nmalloc, uint64_t)
2188 CTL_RO_CGEN(config_stats, stats_arenas_i_hchunks_j_ndalloc,
2189 ctl_stats.arenas[mib[2]].hstats[mib[4]].ndalloc, uint64_t)
2190 CTL_RO_CGEN(config_stats, stats_arenas_i_hchunks_j_nrequests,
2191 ctl_stats.arenas[mib[2]].hstats[mib[4]].nmalloc, /* Intentional. */
2192 uint64_t)
2193 CTL_RO_CGEN(config_stats, stats_arenas_i_hchunks_j_curhchunks,
2194 ctl_stats.arenas[mib[2]].hstats[mib[4]].curhchunks, size_t)
2195
2196 static const ctl_named_node_t *
2197 stats_arenas_i_hchunks_j_index(const size_t *mib, size_t miblen, size_t j)
2198 {
2199
2200 if (j > nhclasses)
2201 return (NULL);
2202 return (super_stats_arenas_i_hchunks_j_node);
2203 }
2204
2205 static const ctl_named_node_t *
2206 stats_arenas_i_index(const size_t *mib, size_t miblen, size_t i)
2207 {
2208 const ctl_named_node_t * ret;
2209
2210 malloc_mutex_lock(&ctl_mtx);
2211 if (i > ctl_stats.narenas || !ctl_stats.arenas[i].initialized) {
2212 ret = NULL;
2213 goto label_return;
2214 }
2215
2216 ret = super_stats_arenas_i_node;
2217 label_return:
2218 malloc_mutex_unlock(&ctl_mtx);
2219 return (ret);
2220 }
backport for Debian buster