1#ifndef JEMALLOC_INTERNAL_DEFS_H_ 2#define JEMALLOC_INTERNAL_DEFS_H_ 3/* 4 * If JEMALLOC_PREFIX is defined via --with-jemalloc-prefix, it will cause all 5 * public APIs to be prefixed. This makes it possible, with some care, to use 6 * multiple allocators simultaneously. 7 */ 8#undef JEMALLOC_PREFIX 9#undef JEMALLOC_CPREFIX 10 11/* 12 * JEMALLOC_PRIVATE_NAMESPACE is used as a prefix for all library-private APIs. 13 * For shared libraries, symbol visibility mechanisms prevent these symbols 14 * from being exported, but for static libraries, naming collisions are a real 15 * possibility. 16 */ 17#undef JEMALLOC_PRIVATE_NAMESPACE 18 19/* 20 * Hyper-threaded CPUs may need a special instruction inside spin loops in 21 * order to yield to another virtual CPU. 22 */ 23#undef CPU_SPINWAIT 24 25/* Defined if C11 atomics are available. */ 26#undef JEMALLOC_C11ATOMICS 27 28/* Defined if the equivalent of FreeBSD's atomic(9) functions are available. */ 29#undef JEMALLOC_ATOMIC9 30 31/* 32 * Defined if OSAtomic*() functions are available, as provided by Darwin, and 33 * documented in the atomic(3) manual page. 34 */ 35#undef JEMALLOC_OSATOMIC 36 37/* 38 * Defined if __sync_add_and_fetch(uint32_t *, uint32_t) and 39 * __sync_sub_and_fetch(uint32_t *, uint32_t) are available, despite 40 * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 not being defined (which means the 41 * functions are defined in libgcc instead of being inlines). 42 */ 43#undef JE_FORCE_SYNC_COMPARE_AND_SWAP_4 44 45/* 46 * Defined if __sync_add_and_fetch(uint64_t *, uint64_t) and 47 * __sync_sub_and_fetch(uint64_t *, uint64_t) are available, despite 48 * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 not being defined (which means the 49 * functions are defined in libgcc instead of being inlines). 50 */ 51#undef JE_FORCE_SYNC_COMPARE_AND_SWAP_8 52 53/* 54 * Defined if __builtin_clz() and __builtin_clzl() are available. 55 */ 56#undef JEMALLOC_HAVE_BUILTIN_CLZ 57 58/* 59 * Defined if madvise(2) is available. 60 */ 61#undef JEMALLOC_HAVE_MADVISE 62 63/* 64 * Defined if OSSpin*() functions are available, as provided by Darwin, and 65 * documented in the spinlock(3) manual page. 66 */ 67#undef JEMALLOC_OSSPIN 68 69/* 70 * Defined if secure_getenv(3) is available. 71 */ 72#undef JEMALLOC_HAVE_SECURE_GETENV 73 74/* 75 * Defined if issetugid(2) is available. 76 */ 77#undef JEMALLOC_HAVE_ISSETUGID 78 79/* 80 * Defined if _malloc_thread_cleanup() exists. At least in the case of 81 * FreeBSD, pthread_key_create() allocates, which if used during malloc 82 * bootstrapping will cause recursion into the pthreads library. Therefore, if 83 * _malloc_thread_cleanup() exists, use it as the basis for thread cleanup in 84 * malloc_tsd. 85 */ 86#undef JEMALLOC_MALLOC_THREAD_CLEANUP 87 88/* 89 * Defined if threaded initialization is known to be safe on this platform. 90 * Among other things, it must be possible to initialize a mutex without 91 * triggering allocation in order for threaded allocation to be safe. 92 */ 93#undef JEMALLOC_THREADED_INIT 94 95/* 96 * Defined if the pthreads implementation defines 97 * _pthread_mutex_init_calloc_cb(), in which case the function is used in order 98 * to avoid recursive allocation during mutex initialization. 99 */ 100#undef JEMALLOC_MUTEX_INIT_CB 101 102/* Non-empty if the tls_model attribute is supported. */ 103#undef JEMALLOC_TLS_MODEL 104 105/* JEMALLOC_CC_SILENCE enables code that silences unuseful compiler warnings. */ 106#undef JEMALLOC_CC_SILENCE 107 108/* JEMALLOC_CODE_COVERAGE enables test code coverage analysis. */ 109#undef JEMALLOC_CODE_COVERAGE 110 111/* 112 * JEMALLOC_DEBUG enables assertions and other sanity checks, and disables 113 * inline functions. 114 */ 115#undef JEMALLOC_DEBUG 116 117/* JEMALLOC_STATS enables statistics calculation. */ 118#undef JEMALLOC_STATS 119 120/* JEMALLOC_PROF enables allocation profiling. */ 121#undef JEMALLOC_PROF 122 123/* Use libunwind for profile backtracing if defined. */ 124#undef JEMALLOC_PROF_LIBUNWIND 125 126/* Use libgcc for profile backtracing if defined. */ 127#undef JEMALLOC_PROF_LIBGCC 128 129/* Use gcc intrinsics for profile backtracing if defined. */ 130#undef JEMALLOC_PROF_GCC 131 132/* 133 * JEMALLOC_TCACHE enables a thread-specific caching layer for small objects. 134 * This makes it possible to allocate/deallocate objects without any locking 135 * when the cache is in the steady state. 136 */ 137#undef JEMALLOC_TCACHE 138 139/* 140 * JEMALLOC_DSS enables use of sbrk(2) to allocate chunks from the data storage 141 * segment (DSS). 142 */ 143#undef JEMALLOC_DSS 144 145/* Support memory filling (junk/zero/quarantine/redzone). */ 146#undef JEMALLOC_FILL 147 148/* Support utrace(2)-based tracing. */ 149#undef JEMALLOC_UTRACE 150 151/* Support Valgrind. */ 152#undef JEMALLOC_VALGRIND 153 154/* Support optional abort() on OOM. */ 155#undef JEMALLOC_XMALLOC 156 157/* Support lazy locking (avoid locking unless a second thread is launched). */ 158#undef JEMALLOC_LAZY_LOCK 159 160/* Minimum size class to support is 2^LG_TINY_MIN bytes. */ 161#undef LG_TINY_MIN 162 163/* 164 * Minimum allocation alignment is 2^LG_QUANTUM bytes (ignoring tiny size 165 * classes). 166 */ 167#undef LG_QUANTUM 168 169/* One page is 2^LG_PAGE bytes. */ 170#undef LG_PAGE 171 172/* 173 * If defined, adjacent virtual memory mappings with identical attributes 174 * automatically coalesce, and they fragment when changes are made to subranges. 175 * This is the normal order of things for mmap()/munmap(), but on Windows 176 * VirtualAlloc()/VirtualFree() operations must be precisely matched, i.e. 177 * mappings do *not* coalesce/fragment. 178 */ 179#undef JEMALLOC_MAPS_COALESCE 180 181/* 182 * If defined, use munmap() to unmap freed chunks, rather than storing them for 183 * later reuse. This is disabled by default on Linux because common sequences 184 * of mmap()/munmap() calls will cause virtual memory map holes. 185 */ 186#undef JEMALLOC_MUNMAP 187 188/* TLS is used to map arenas and magazine caches to threads. */ 189#undef JEMALLOC_TLS 190 191/* 192 * ffs*() functions to use for bitmapping. Don't use these directly; instead, 193 * use ffs_*() from util.h. 194 */ 195#undef JEMALLOC_INTERNAL_FFSLL 196#undef JEMALLOC_INTERNAL_FFSL 197#undef JEMALLOC_INTERNAL_FFS 198 199/* 200 * JEMALLOC_IVSALLOC enables ivsalloc(), which verifies that pointers reside 201 * within jemalloc-owned chunks before dereferencing them. 202 */ 203#undef JEMALLOC_IVSALLOC 204 205/* 206 * If defined, explicitly attempt to more uniformly distribute large allocation 207 * pointer alignments across all cache indices. 208 */ 209#undef JEMALLOC_CACHE_OBLIVIOUS 210 211/* 212 * Darwin (OS X) uses zones to work around Mach-O symbol override shortcomings. 213 */ 214#undef JEMALLOC_ZONE 215#undef JEMALLOC_ZONE_VERSION 216 217/* 218 * Methods for purging unused pages differ between operating systems. 219 * 220 * madvise(..., MADV_DONTNEED) : On Linux, this immediately discards pages, 221 * such that new pages will be demand-zeroed if 222 * the address region is later touched. 223 * madvise(..., MADV_FREE) : On FreeBSD and Darwin, this marks pages as being 224 * unused, such that they will be discarded rather 225 * than swapped out. 226 */ 227#undef JEMALLOC_PURGE_MADVISE_DONTNEED 228#undef JEMALLOC_PURGE_MADVISE_FREE 229 230/* Define if operating system has alloca.h header. */ 231#undef JEMALLOC_HAS_ALLOCA_H 232 233/* C99 restrict keyword supported. */ 234#undef JEMALLOC_HAS_RESTRICT 235 236/* For use by hash code. */ 237#undef JEMALLOC_BIG_ENDIAN 238 239/* sizeof(int) == 2^LG_SIZEOF_INT. */ 240#undef LG_SIZEOF_INT 241 242/* sizeof(long) == 2^LG_SIZEOF_LONG. */ 243#undef LG_SIZEOF_LONG 244 245/* sizeof(long long) == 2^LG_SIZEOF_LONG_LONG. */ 246#undef LG_SIZEOF_LONG_LONG 247 248/* sizeof(intmax_t) == 2^LG_SIZEOF_INTMAX_T. */ 249#undef LG_SIZEOF_INTMAX_T 250 251/* glibc malloc hooks (__malloc_hook, __realloc_hook, __free_hook). */ 252#undef JEMALLOC_GLIBC_MALLOC_HOOK 253 254/* glibc memalign hook. */ 255#undef JEMALLOC_GLIBC_MEMALIGN_HOOK 256 257/* Adaptive mutex support in pthreads. */ 258#undef JEMALLOC_HAVE_PTHREAD_MUTEX_ADAPTIVE_NP 259 260/* 261 * If defined, jemalloc symbols are not exported (doesn't work when 262 * JEMALLOC_PREFIX is not defined). 263 */ 264#undef JEMALLOC_EXPORT 265 266/* config.malloc_conf options string. */ 267#undef JEMALLOC_CONFIG_MALLOC_CONF 268 269#endif /* JEMALLOC_INTERNAL_DEFS_H_ */ 270