1#ifndef JEMALLOC_INTERNAL_H 2#define JEMALLOC_INTERNAL_H 3 4#include "jemalloc_internal_defs.h" 5#include "jemalloc/internal/jemalloc_internal_decls.h" 6 7#ifdef JEMALLOC_UTRACE 8#include <sys/ktrace.h> 9#endif 10 11#define JEMALLOC_NO_DEMANGLE 12#ifdef JEMALLOC_JET 13# define JEMALLOC_N(n) jet_##n 14# include "jemalloc/internal/public_namespace.h" 15# define JEMALLOC_NO_RENAME 16# include "../jemalloc.h" 17# undef JEMALLOC_NO_RENAME 18#else 19# define JEMALLOC_N(n) je_##n 20# include "../jemalloc.h" 21#endif 22#include "jemalloc/internal/private_namespace.h" 23 24static const bool config_debug = 25#ifdef JEMALLOC_DEBUG 26 true 27#else 28 false 29#endif 30 ; 31static const bool have_dss = 32#ifdef JEMALLOC_DSS 33 true 34#else 35 false 36#endif 37 ; 38static const bool config_fill = 39#ifdef JEMALLOC_FILL 40 true 41#else 42 false 43#endif 44 ; 45static const bool config_lazy_lock = 46#ifdef JEMALLOC_LAZY_LOCK 47 true 48#else 49 false 50#endif 51 ; 52static const bool config_prof = 53#ifdef JEMALLOC_PROF 54 true 55#else 56 false 57#endif 58 ; 59static const bool config_prof_libgcc = 60#ifdef JEMALLOC_PROF_LIBGCC 61 true 62#else 63 false 64#endif 65 ; 66static const bool config_prof_libunwind = 67#ifdef JEMALLOC_PROF_LIBUNWIND 68 true 69#else 70 false 71#endif 72 ; 73static const bool config_munmap = 74#ifdef JEMALLOC_MUNMAP 75 true 76#else 77 false 78#endif 79 ; 80static const bool config_stats = 81#ifdef JEMALLOC_STATS 82 true 83#else 84 false 85#endif 86 ; 87static const bool config_tcache = 88#ifdef JEMALLOC_TCACHE 89 true 90#else 91 false 92#endif 93 ; 94static const bool config_tls = 95#ifdef JEMALLOC_TLS 96 true 97#else 98 false 99#endif 100 ; 101static const bool config_utrace = 102#ifdef JEMALLOC_UTRACE 103 true 104#else 105 false 106#endif 107 ; 108static const bool config_valgrind = 109#ifdef JEMALLOC_VALGRIND 110 true 111#else 112 false 113#endif 114 ; 115static const bool config_xmalloc = 116#ifdef JEMALLOC_XMALLOC 117 true 118#else 119 false 120#endif 121 ; 122static const bool config_ivsalloc = 123#ifdef JEMALLOC_IVSALLOC 124 true 125#else 126 false 127#endif 128 ; 129 130#ifdef JEMALLOC_ATOMIC9 131#include <machine/atomic.h> 132#endif 133 134#if (defined(JEMALLOC_OSATOMIC) || defined(JEMALLOC_OSSPIN)) 135#include <libkern/OSAtomic.h> 136#endif 137 138#ifdef JEMALLOC_ZONE 139#include <mach/mach_error.h> 140#include <mach/mach_init.h> 141#include <mach/vm_map.h> 142#include <malloc/malloc.h> 143#endif 144 145#define RB_COMPACT 146#include "jemalloc/internal/rb.h" 147#include "jemalloc/internal/qr.h" 148#include "jemalloc/internal/ql.h" 149 150/* 151 * jemalloc can conceptually be broken into components (arena, tcache, etc.), 152 * but there are circular dependencies that cannot be broken without 153 * substantial performance degradation. In order to reduce the effect on 154 * visual code flow, read the header files in multiple passes, with one of the 155 * following cpp variables defined during each pass: 156 * 157 * JEMALLOC_H_TYPES : Preprocessor-defined constants and psuedo-opaque data 158 * types. 159 * JEMALLOC_H_STRUCTS : Data structures. 160 * JEMALLOC_H_EXTERNS : Extern data declarations and function prototypes. 161 * JEMALLOC_H_INLINES : Inline functions. 162 */ 163/******************************************************************************/ 164#define JEMALLOC_H_TYPES 165 166#include "jemalloc/internal/jemalloc_internal_macros.h" 167 168#define MALLOCX_LG_ALIGN_MASK ((int)0x3f) 169 170/* Smallest size class to support. */ 171#define LG_TINY_MIN 3 172#define TINY_MIN (1U << LG_TINY_MIN) 173 174/* 175 * Minimum alignment of allocations is 2^LG_QUANTUM bytes (ignoring tiny size 176 * classes). 177 */ 178#ifndef LG_QUANTUM 179# if (defined(__i386__) || defined(_M_IX86)) 180# define LG_QUANTUM 4 181# endif 182# ifdef __ia64__ 183# define LG_QUANTUM 4 184# endif 185# ifdef __alpha__ 186# define LG_QUANTUM 4 187# endif 188# ifdef __sparc64__ 189# define LG_QUANTUM 4 190# endif 191# if (defined(__amd64__) || defined(__x86_64__) || defined(_M_X64)) 192# define LG_QUANTUM 4 193# endif 194# ifdef __arm__ 195# define LG_QUANTUM 3 196# endif 197# ifdef __aarch64__ 198# define LG_QUANTUM 4 199# endif 200# ifdef __hppa__ 201# define LG_QUANTUM 4 202# endif 203# ifdef __mips__ 204# define LG_QUANTUM 3 205# endif 206# ifdef __powerpc__ 207# define LG_QUANTUM 4 208# endif 209# ifdef __s390__ 210# define LG_QUANTUM 4 211# endif 212# ifdef __SH4__ 213# define LG_QUANTUM 4 214# endif 215# ifdef __tile__ 216# define LG_QUANTUM 4 217# endif 218# ifdef __le32__ 219# define LG_QUANTUM 4 220# endif 221# ifndef LG_QUANTUM 222# error "No LG_QUANTUM definition for architecture; specify via CPPFLAGS" 223# endif 224#endif 225 226#define QUANTUM ((size_t)(1U << LG_QUANTUM)) 227#define QUANTUM_MASK (QUANTUM - 1) 228 229/* Return the smallest quantum multiple that is >= a. */ 230#define QUANTUM_CEILING(a) \ 231 (((a) + QUANTUM_MASK) & ~QUANTUM_MASK) 232 233#define LONG ((size_t)(1U << LG_SIZEOF_LONG)) 234#define LONG_MASK (LONG - 1) 235 236/* Return the smallest long multiple that is >= a. */ 237#define LONG_CEILING(a) \ 238 (((a) + LONG_MASK) & ~LONG_MASK) 239 240#define SIZEOF_PTR (1U << LG_SIZEOF_PTR) 241#define PTR_MASK (SIZEOF_PTR - 1) 242 243/* Return the smallest (void *) multiple that is >= a. */ 244#define PTR_CEILING(a) \ 245 (((a) + PTR_MASK) & ~PTR_MASK) 246 247/* 248 * Maximum size of L1 cache line. This is used to avoid cache line aliasing. 249 * In addition, this controls the spacing of cacheline-spaced size classes. 250 * 251 * CACHELINE cannot be based on LG_CACHELINE because __declspec(align()) can 252 * only handle raw constants. 253 */ 254#define LG_CACHELINE 6 255#define CACHELINE 64 256#define CACHELINE_MASK (CACHELINE - 1) 257 258/* Return the smallest cacheline multiple that is >= s. */ 259#define CACHELINE_CEILING(s) \ 260 (((s) + CACHELINE_MASK) & ~CACHELINE_MASK) 261 262/* Page size. STATIC_PAGE_SHIFT is determined by the configure script. */ 263#ifdef PAGE_MASK 264# undef PAGE_MASK 265#endif 266#define LG_PAGE STATIC_PAGE_SHIFT 267#define PAGE ((size_t)(1U << STATIC_PAGE_SHIFT)) 268#define PAGE_MASK ((size_t)(PAGE - 1)) 269 270/* Return the smallest pagesize multiple that is >= s. */ 271#define PAGE_CEILING(s) \ 272 (((s) + PAGE_MASK) & ~PAGE_MASK) 273 274/* Return the nearest aligned address at or below a. */ 275#define ALIGNMENT_ADDR2BASE(a, alignment) \ 276 ((void *)((uintptr_t)(a) & (-(alignment)))) 277 278/* Return the offset between a and the nearest aligned address at or below a. */ 279#define ALIGNMENT_ADDR2OFFSET(a, alignment) \ 280 ((size_t)((uintptr_t)(a) & (alignment - 1))) 281 282/* Return the smallest alignment multiple that is >= s. */ 283#define ALIGNMENT_CEILING(s, alignment) \ 284 (((s) + (alignment - 1)) & (-(alignment))) 285 286/* Declare a variable length array */ 287#if __STDC_VERSION__ < 199901L 288# ifdef _MSC_VER 289# include <malloc.h> 290# define alloca _alloca 291# else 292# ifdef JEMALLOC_HAS_ALLOCA_H 293# include <alloca.h> 294# else 295# include <stdlib.h> 296# endif 297# endif 298# define VARIABLE_ARRAY(type, name, count) \ 299 type *name = alloca(sizeof(type) * (count)) 300#else 301# define VARIABLE_ARRAY(type, name, count) type name[(count)] 302#endif 303 304#include "jemalloc/internal/valgrind.h" 305#include "jemalloc/internal/util.h" 306#include "jemalloc/internal/atomic.h" 307#include "jemalloc/internal/prng.h" 308#include "jemalloc/internal/ckh.h" 309#include "jemalloc/internal/size_classes.h" 310#include "jemalloc/internal/stats.h" 311#include "jemalloc/internal/ctl.h" 312#include "jemalloc/internal/mutex.h" 313#include "jemalloc/internal/tsd.h" 314#include "jemalloc/internal/mb.h" 315#include "jemalloc/internal/extent.h" 316#include "jemalloc/internal/arena.h" 317#include "jemalloc/internal/bitmap.h" 318#include "jemalloc/internal/base.h" 319#include "jemalloc/internal/chunk.h" 320#include "jemalloc/internal/huge.h" 321#include "jemalloc/internal/rtree.h" 322#include "jemalloc/internal/tcache.h" 323#include "jemalloc/internal/hash.h" 324#include "jemalloc/internal/quarantine.h" 325#include "jemalloc/internal/prof.h" 326 327#undef JEMALLOC_H_TYPES 328/******************************************************************************/ 329#define JEMALLOC_H_STRUCTS 330 331#include "jemalloc/internal/valgrind.h" 332#include "jemalloc/internal/util.h" 333#include "jemalloc/internal/atomic.h" 334#include "jemalloc/internal/prng.h" 335#include "jemalloc/internal/ckh.h" 336#include "jemalloc/internal/size_classes.h" 337#include "jemalloc/internal/stats.h" 338#include "jemalloc/internal/ctl.h" 339#include "jemalloc/internal/mutex.h" 340#include "jemalloc/internal/tsd.h" 341#include "jemalloc/internal/mb.h" 342#include "jemalloc/internal/bitmap.h" 343#include "jemalloc/internal/extent.h" 344#include "jemalloc/internal/arena.h" 345#include "jemalloc/internal/base.h" 346#include "jemalloc/internal/chunk.h" 347#include "jemalloc/internal/huge.h" 348#include "jemalloc/internal/rtree.h" 349#include "jemalloc/internal/tcache.h" 350#include "jemalloc/internal/hash.h" 351#include "jemalloc/internal/quarantine.h" 352#include "jemalloc/internal/prof.h" 353 354typedef struct { 355 uint64_t allocated; 356 uint64_t deallocated; 357} thread_allocated_t; 358/* 359 * The JEMALLOC_ARG_CONCAT() wrapper is necessary to pass {0, 0} via a cpp macro 360 * argument. 361 */ 362#define THREAD_ALLOCATED_INITIALIZER JEMALLOC_ARG_CONCAT({0, 0}) 363 364#undef JEMALLOC_H_STRUCTS 365/******************************************************************************/ 366#define JEMALLOC_H_EXTERNS 367 368extern bool opt_abort; 369extern bool opt_junk; 370extern size_t opt_quarantine; 371extern bool opt_redzone; 372extern bool opt_utrace; 373extern bool opt_xmalloc; 374extern bool opt_zero; 375extern size_t opt_narenas; 376 377extern bool in_valgrind; 378 379/* Number of CPUs. */ 380extern unsigned ncpus; 381 382/* Protects arenas initialization (arenas, arenas_total). */ 383extern malloc_mutex_t arenas_lock; 384/* 385 * Arenas that are used to service external requests. Not all elements of the 386 * arenas array are necessarily used; arenas are created lazily as needed. 387 * 388 * arenas[0..narenas_auto) are used for automatic multiplexing of threads and 389 * arenas. arenas[narenas_auto..narenas_total) are only used if the application 390 * takes some action to create them and allocate from them. 391 */ 392extern arena_t **arenas; 393extern unsigned narenas_total; 394extern unsigned narenas_auto; /* Read-only after initialization. */ 395 396arena_t *arenas_extend(unsigned ind); 397void arenas_cleanup(void *arg); 398arena_t *choose_arena_hard(void); 399void jemalloc_prefork(void); 400void jemalloc_postfork_parent(void); 401void jemalloc_postfork_child(void); 402 403#include "jemalloc/internal/valgrind.h" 404#include "jemalloc/internal/util.h" 405#include "jemalloc/internal/atomic.h" 406#include "jemalloc/internal/prng.h" 407#include "jemalloc/internal/ckh.h" 408#include "jemalloc/internal/size_classes.h" 409#include "jemalloc/internal/stats.h" 410#include "jemalloc/internal/ctl.h" 411#include "jemalloc/internal/mutex.h" 412#include "jemalloc/internal/tsd.h" 413#include "jemalloc/internal/mb.h" 414#include "jemalloc/internal/bitmap.h" 415#include "jemalloc/internal/extent.h" 416#include "jemalloc/internal/arena.h" 417#include "jemalloc/internal/base.h" 418#include "jemalloc/internal/chunk.h" 419#include "jemalloc/internal/huge.h" 420#include "jemalloc/internal/rtree.h" 421#include "jemalloc/internal/tcache.h" 422#include "jemalloc/internal/hash.h" 423#include "jemalloc/internal/quarantine.h" 424#include "jemalloc/internal/prof.h" 425 426#undef JEMALLOC_H_EXTERNS 427/******************************************************************************/ 428#define JEMALLOC_H_INLINES 429 430#include "jemalloc/internal/valgrind.h" 431#include "jemalloc/internal/util.h" 432#include "jemalloc/internal/atomic.h" 433#include "jemalloc/internal/prng.h" 434#include "jemalloc/internal/ckh.h" 435#include "jemalloc/internal/size_classes.h" 436#include "jemalloc/internal/stats.h" 437#include "jemalloc/internal/ctl.h" 438#include "jemalloc/internal/mutex.h" 439#include "jemalloc/internal/tsd.h" 440#include "jemalloc/internal/mb.h" 441#include "jemalloc/internal/extent.h" 442#include "jemalloc/internal/base.h" 443#include "jemalloc/internal/chunk.h" 444#include "jemalloc/internal/huge.h" 445 446/* 447 * Include arena.h the first time in order to provide inline functions for this 448 * header's inlines. 449 */ 450#define JEMALLOC_ARENA_INLINE_A 451#include "jemalloc/internal/arena.h" 452#undef JEMALLOC_ARENA_INLINE_A 453 454#ifndef JEMALLOC_ENABLE_INLINE 455malloc_tsd_protos(JEMALLOC_ATTR(unused), arenas, arena_t *) 456 457size_t s2u(size_t size); 458size_t sa2u(size_t size, size_t alignment); 459unsigned narenas_total_get(void); 460arena_t *choose_arena(arena_t *arena); 461#endif 462 463#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_C_)) 464/* 465 * Map of pthread_self() --> arenas[???], used for selecting an arena to use 466 * for allocations. 467 */ 468malloc_tsd_externs(arenas, arena_t *) 469malloc_tsd_funcs(JEMALLOC_ALWAYS_INLINE, arenas, arena_t *, NULL, 470 arenas_cleanup) 471 472/* 473 * Compute usable size that would result from allocating an object with the 474 * specified size. 475 */ 476JEMALLOC_ALWAYS_INLINE size_t 477s2u(size_t size) 478{ 479 480 if (size <= SMALL_MAXCLASS) 481 return (small_s2u(size)); 482 if (size <= arena_maxclass) 483 return (PAGE_CEILING(size)); 484 return (CHUNK_CEILING(size)); 485} 486 487/* 488 * Compute usable size that would result from allocating an object with the 489 * specified size and alignment. 490 */ 491JEMALLOC_ALWAYS_INLINE size_t 492sa2u(size_t size, size_t alignment) 493{ 494 size_t usize; 495 496 assert(alignment != 0 && ((alignment - 1) & alignment) == 0); 497 498 /* 499 * Round size up to the nearest multiple of alignment. 500 * 501 * This done, we can take advantage of the fact that for each small 502 * size class, every object is aligned at the smallest power of two 503 * that is non-zero in the base two representation of the size. For 504 * example: 505 * 506 * Size | Base 2 | Minimum alignment 507 * -----+----------+------------------ 508 * 96 | 1100000 | 32 509 * 144 | 10100000 | 32 510 * 192 | 11000000 | 64 511 */ 512 usize = ALIGNMENT_CEILING(size, alignment); 513 /* 514 * (usize < size) protects against the combination of maximal 515 * alignment and size greater than maximal alignment. 516 */ 517 if (usize < size) { 518 /* size_t overflow. */ 519 return (0); 520 } 521 522 if (usize <= arena_maxclass && alignment <= PAGE) { 523 if (usize <= SMALL_MAXCLASS) 524 return (small_s2u(usize)); 525 return (PAGE_CEILING(usize)); 526 } else { 527 size_t run_size; 528 529 /* 530 * We can't achieve subpage alignment, so round up alignment 531 * permanently; it makes later calculations simpler. 532 */ 533 alignment = PAGE_CEILING(alignment); 534 usize = PAGE_CEILING(size); 535 /* 536 * (usize < size) protects against very large sizes within 537 * PAGE of SIZE_T_MAX. 538 * 539 * (usize + alignment < usize) protects against the 540 * combination of maximal alignment and usize large enough 541 * to cause overflow. This is similar to the first overflow 542 * check above, but it needs to be repeated due to the new 543 * usize value, which may now be *equal* to maximal 544 * alignment, whereas before we only detected overflow if the 545 * original size was *greater* than maximal alignment. 546 */ 547 if (usize < size || usize + alignment < usize) { 548 /* size_t overflow. */ 549 return (0); 550 } 551 552 /* 553 * Calculate the size of the over-size run that arena_palloc() 554 * would need to allocate in order to guarantee the alignment. 555 * If the run wouldn't fit within a chunk, round up to a huge 556 * allocation size. 557 */ 558 run_size = usize + alignment - PAGE; 559 if (run_size <= arena_maxclass) 560 return (PAGE_CEILING(usize)); 561 return (CHUNK_CEILING(usize)); 562 } 563} 564 565JEMALLOC_INLINE unsigned 566narenas_total_get(void) 567{ 568 unsigned narenas; 569 570 malloc_mutex_lock(&arenas_lock); 571 narenas = narenas_total; 572 malloc_mutex_unlock(&arenas_lock); 573 574 return (narenas); 575} 576 577/* Choose an arena based on a per-thread value. */ 578JEMALLOC_INLINE arena_t * 579choose_arena(arena_t *arena) 580{ 581 arena_t *ret; 582 583 if (arena != NULL) 584 return (arena); 585 586 if ((ret = *arenas_tsd_get()) == NULL) { 587 ret = choose_arena_hard(); 588 assert(ret != NULL); 589 } 590 591 return (ret); 592} 593#endif 594 595#include "jemalloc/internal/bitmap.h" 596#include "jemalloc/internal/rtree.h" 597/* 598 * Include arena.h the second and third times in order to resolve circular 599 * dependencies with tcache.h. 600 */ 601#define JEMALLOC_ARENA_INLINE_B 602#include "jemalloc/internal/arena.h" 603#undef JEMALLOC_ARENA_INLINE_B 604#include "jemalloc/internal/tcache.h" 605#define JEMALLOC_ARENA_INLINE_C 606#include "jemalloc/internal/arena.h" 607#undef JEMALLOC_ARENA_INLINE_C 608#include "jemalloc/internal/hash.h" 609#include "jemalloc/internal/quarantine.h" 610 611#ifndef JEMALLOC_ENABLE_INLINE 612void *imalloct(size_t size, bool try_tcache, arena_t *arena); 613void *imalloc(size_t size); 614void *icalloct(size_t size, bool try_tcache, arena_t *arena); 615void *icalloc(size_t size); 616void *ipalloct(size_t usize, size_t alignment, bool zero, bool try_tcache, 617 arena_t *arena); 618void *ipalloc(size_t usize, size_t alignment, bool zero); 619size_t isalloc(const void *ptr, bool demote); 620size_t ivsalloc(const void *ptr, bool demote); 621size_t u2rz(size_t usize); 622size_t p2rz(const void *ptr); 623void idalloct(void *ptr, bool try_tcache); 624void idalloc(void *ptr); 625void iqalloct(void *ptr, bool try_tcache); 626void iqalloc(void *ptr); 627void *iralloct_realign(void *ptr, size_t oldsize, size_t size, size_t extra, 628 size_t alignment, bool zero, bool try_tcache_alloc, bool try_tcache_dalloc, 629 arena_t *arena); 630void *iralloct(void *ptr, size_t size, size_t extra, size_t alignment, 631 bool zero, bool try_tcache_alloc, bool try_tcache_dalloc, arena_t *arena); 632void *iralloc(void *ptr, size_t size, size_t extra, size_t alignment, 633 bool zero); 634bool ixalloc(void *ptr, size_t size, size_t extra, size_t alignment, 635 bool zero); 636malloc_tsd_protos(JEMALLOC_ATTR(unused), thread_allocated, thread_allocated_t) 637#endif 638 639#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_C_)) 640JEMALLOC_ALWAYS_INLINE void * 641imalloct(size_t size, bool try_tcache, arena_t *arena) 642{ 643 644 assert(size != 0); 645 646 if (size <= arena_maxclass) 647 return (arena_malloc(arena, size, false, try_tcache)); 648 else 649 return (huge_malloc(arena, size, false)); 650} 651 652JEMALLOC_ALWAYS_INLINE void * 653imalloc(size_t size) 654{ 655 656 return (imalloct(size, true, NULL)); 657} 658 659JEMALLOC_ALWAYS_INLINE void * 660icalloct(size_t size, bool try_tcache, arena_t *arena) 661{ 662 663 if (size <= arena_maxclass) 664 return (arena_malloc(arena, size, true, try_tcache)); 665 else 666 return (huge_malloc(arena, size, true)); 667} 668 669JEMALLOC_ALWAYS_INLINE void * 670icalloc(size_t size) 671{ 672 673 return (icalloct(size, true, NULL)); 674} 675 676JEMALLOC_ALWAYS_INLINE void * 677ipalloct(size_t usize, size_t alignment, bool zero, bool try_tcache, 678 arena_t *arena) 679{ 680 void *ret; 681 682 assert(usize != 0); 683 assert(usize == sa2u(usize, alignment)); 684 685 if (usize <= arena_maxclass && alignment <= PAGE) 686 ret = arena_malloc(arena, usize, zero, try_tcache); 687 else { 688 if (usize <= arena_maxclass) { 689 ret = arena_palloc(choose_arena(arena), usize, 690 alignment, zero); 691 } else if (alignment <= chunksize) 692 ret = huge_malloc(arena, usize, zero); 693 else 694 ret = huge_palloc(arena, usize, alignment, zero); 695 } 696 697 assert(ALIGNMENT_ADDR2BASE(ret, alignment) == ret); 698 return (ret); 699} 700 701JEMALLOC_ALWAYS_INLINE void * 702ipalloc(size_t usize, size_t alignment, bool zero) 703{ 704 705 return (ipalloct(usize, alignment, zero, true, NULL)); 706} 707 708/* 709 * Typical usage: 710 * void *ptr = [...] 711 * size_t sz = isalloc(ptr, config_prof); 712 */ 713JEMALLOC_ALWAYS_INLINE size_t 714isalloc(const void *ptr, bool demote) 715{ 716 size_t ret; 717 arena_chunk_t *chunk; 718 719 assert(ptr != NULL); 720 /* Demotion only makes sense if config_prof is true. */ 721 assert(config_prof || demote == false); 722 723 chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr); 724 if (chunk != ptr) 725 ret = arena_salloc(ptr, demote); 726 else 727 ret = huge_salloc(ptr); 728 729 return (ret); 730} 731 732JEMALLOC_ALWAYS_INLINE size_t 733ivsalloc(const void *ptr, bool demote) 734{ 735 736 /* Return 0 if ptr is not within a chunk managed by jemalloc. */ 737 if (rtree_get(chunks_rtree, (uintptr_t)CHUNK_ADDR2BASE(ptr)) == 0) 738 return (0); 739 740 return (isalloc(ptr, demote)); 741} 742 743JEMALLOC_INLINE size_t 744u2rz(size_t usize) 745{ 746 size_t ret; 747 748 if (usize <= SMALL_MAXCLASS) { 749 size_t binind = small_size2bin(usize); 750 ret = arena_bin_info[binind].redzone_size; 751 } else 752 ret = 0; 753 754 return (ret); 755} 756 757JEMALLOC_INLINE size_t 758p2rz(const void *ptr) 759{ 760 size_t usize = isalloc(ptr, false); 761 762 return (u2rz(usize)); 763} 764 765JEMALLOC_ALWAYS_INLINE void 766idalloct(void *ptr, bool try_tcache) 767{ 768 arena_chunk_t *chunk; 769 770 assert(ptr != NULL); 771 772 chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr); 773 if (chunk != ptr) 774 arena_dalloc(chunk, ptr, try_tcache); 775 else 776 huge_dalloc(ptr); 777} 778 779JEMALLOC_ALWAYS_INLINE void 780idalloc(void *ptr) 781{ 782 783 idalloct(ptr, true); 784} 785 786JEMALLOC_ALWAYS_INLINE void 787iqalloct(void *ptr, bool try_tcache) 788{ 789 790 if (config_fill && opt_quarantine) 791 quarantine(ptr); 792 else 793 idalloct(ptr, try_tcache); 794} 795 796JEMALLOC_ALWAYS_INLINE void 797iqalloc(void *ptr) 798{ 799 800 iqalloct(ptr, true); 801} 802 803JEMALLOC_ALWAYS_INLINE void * 804iralloct_realign(void *ptr, size_t oldsize, size_t size, size_t extra, 805 size_t alignment, bool zero, bool try_tcache_alloc, bool try_tcache_dalloc, 806 arena_t *arena) 807{ 808 void *p; 809 size_t usize, copysize; 810 811 usize = sa2u(size + extra, alignment); 812 if (usize == 0) 813 return (NULL); 814 p = ipalloct(usize, alignment, zero, try_tcache_alloc, arena); 815 if (p == NULL) { 816 if (extra == 0) 817 return (NULL); 818 /* Try again, without extra this time. */ 819 usize = sa2u(size, alignment); 820 if (usize == 0) 821 return (NULL); 822 p = ipalloct(usize, alignment, zero, try_tcache_alloc, arena); 823 if (p == NULL) 824 return (NULL); 825 } 826 /* 827 * Copy at most size bytes (not size+extra), since the caller has no 828 * expectation that the extra bytes will be reliably preserved. 829 */ 830 copysize = (size < oldsize) ? size : oldsize; 831 memcpy(p, ptr, copysize); 832 iqalloct(ptr, try_tcache_dalloc); 833 return (p); 834} 835 836JEMALLOC_ALWAYS_INLINE void * 837iralloct(void *ptr, size_t size, size_t extra, size_t alignment, bool zero, 838 bool try_tcache_alloc, bool try_tcache_dalloc, arena_t *arena) 839{ 840 size_t oldsize; 841 842 assert(ptr != NULL); 843 assert(size != 0); 844 845 oldsize = isalloc(ptr, config_prof); 846 847 if (alignment != 0 && ((uintptr_t)ptr & ((uintptr_t)alignment-1)) 848 != 0) { 849 /* 850 * Existing object alignment is inadequate; allocate new space 851 * and copy. 852 */ 853 return (iralloct_realign(ptr, oldsize, size, extra, alignment, 854 zero, try_tcache_alloc, try_tcache_dalloc, arena)); 855 } 856 857 if (size + extra <= arena_maxclass) { 858 return (arena_ralloc(arena, ptr, oldsize, size, extra, 859 alignment, zero, try_tcache_alloc, 860 try_tcache_dalloc)); 861 } else { 862 return (huge_ralloc(arena, ptr, oldsize, size, extra, 863 alignment, zero, try_tcache_dalloc)); 864 } 865} 866 867JEMALLOC_ALWAYS_INLINE void * 868iralloc(void *ptr, size_t size, size_t extra, size_t alignment, bool zero) 869{ 870 871 return (iralloct(ptr, size, extra, alignment, zero, true, true, NULL)); 872} 873 874JEMALLOC_ALWAYS_INLINE bool 875ixalloc(void *ptr, size_t size, size_t extra, size_t alignment, bool zero) 876{ 877 size_t oldsize; 878 879 assert(ptr != NULL); 880 assert(size != 0); 881 882 oldsize = isalloc(ptr, config_prof); 883 if (alignment != 0 && ((uintptr_t)ptr & ((uintptr_t)alignment-1)) 884 != 0) { 885 /* Existing object alignment is inadequate. */ 886 return (true); 887 } 888 889 if (size <= arena_maxclass) 890 return (arena_ralloc_no_move(ptr, oldsize, size, extra, zero)); 891 else 892 return (huge_ralloc_no_move(ptr, oldsize, size, extra)); 893} 894 895malloc_tsd_externs(thread_allocated, thread_allocated_t) 896malloc_tsd_funcs(JEMALLOC_ALWAYS_INLINE, thread_allocated, thread_allocated_t, 897 THREAD_ALLOCATED_INITIALIZER, malloc_tsd_no_cleanup) 898#endif 899 900#include "jemalloc/internal/prof.h" 901 902#undef JEMALLOC_H_INLINES 903/******************************************************************************/ 904#endif /* JEMALLOC_INTERNAL_H */ 905