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 the equivalent of FreeBSD's atomic(9) functions are available. */ 26#undef JEMALLOC_ATOMIC9 27 28/* 29 * Defined if OSAtomic*() functions are available, as provided by Darwin, and 30 * documented in the atomic(3) manual page. 31 */ 32#undef JEMALLOC_OSATOMIC 33 34/* 35 * Defined if __sync_add_and_fetch(uint32_t *, uint32_t) and 36 * __sync_sub_and_fetch(uint32_t *, uint32_t) are available, despite 37 * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 not being defined (which means the 38 * functions are defined in libgcc instead of being inlines) 39 */ 40#undef JE_FORCE_SYNC_COMPARE_AND_SWAP_4 41 42/* 43 * Defined if __sync_add_and_fetch(uint64_t *, uint64_t) and 44 * __sync_sub_and_fetch(uint64_t *, uint64_t) are available, despite 45 * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 not being defined (which means the 46 * functions are defined in libgcc instead of being inlines) 47 */ 48#undef JE_FORCE_SYNC_COMPARE_AND_SWAP_8 49 50/* 51 * Defined if __builtin_clz() and __builtin_clzl() are available. 52 */ 53#undef JEMALLOC_HAVE_BUILTIN_CLZ 54 55/* 56 * Defined if madvise(2) is available. 57 */ 58#undef JEMALLOC_HAVE_MADVISE 59 60/* 61 * Defined if OSSpin*() functions are available, as provided by Darwin, and 62 * documented in the spinlock(3) manual page. 63 */ 64#undef JEMALLOC_OSSPIN 65 66/* 67 * Defined if _malloc_thread_cleanup() exists. At least in the case of 68 * FreeBSD, pthread_key_create() allocates, which if used during malloc 69 * bootstrapping will cause recursion into the pthreads library. Therefore, if 70 * _malloc_thread_cleanup() exists, use it as the basis for thread cleanup in 71 * malloc_tsd. 72 */ 73#undef JEMALLOC_MALLOC_THREAD_CLEANUP 74 75/* 76 * Defined if threaded initialization is known to be safe on this platform. 77 * Among other things, it must be possible to initialize a mutex without 78 * triggering allocation in order for threaded allocation to be safe. 79 */ 80#undef JEMALLOC_THREADED_INIT 81 82/* 83 * Defined if the pthreads implementation defines 84 * _pthread_mutex_init_calloc_cb(), in which case the function is used in order 85 * to avoid recursive allocation during mutex initialization. 86 */ 87#undef JEMALLOC_MUTEX_INIT_CB 88 89/* Non-empty if the tls_model attribute is supported. */ 90#undef JEMALLOC_TLS_MODEL 91 92/* JEMALLOC_CC_SILENCE enables code that silences unuseful compiler warnings. */ 93#undef JEMALLOC_CC_SILENCE 94 95/* JEMALLOC_CODE_COVERAGE enables test code coverage analysis. */ 96#undef JEMALLOC_CODE_COVERAGE 97 98/* 99 * JEMALLOC_DEBUG enables assertions and other sanity checks, and disables 100 * inline functions. 101 */ 102#undef JEMALLOC_DEBUG 103 104/* JEMALLOC_STATS enables statistics calculation. */ 105#undef JEMALLOC_STATS 106 107/* JEMALLOC_PROF enables allocation profiling. */ 108#undef JEMALLOC_PROF 109 110/* Use libunwind for profile backtracing if defined. */ 111#undef JEMALLOC_PROF_LIBUNWIND 112 113/* Use libgcc for profile backtracing if defined. */ 114#undef JEMALLOC_PROF_LIBGCC 115 116/* Use gcc intrinsics for profile backtracing if defined. */ 117#undef JEMALLOC_PROF_GCC 118 119/* 120 * JEMALLOC_TCACHE enables a thread-specific caching layer for small objects. 121 * This makes it possible to allocate/deallocate objects without any locking 122 * when the cache is in the steady state. 123 */ 124#undef JEMALLOC_TCACHE 125 126/* 127 * JEMALLOC_DSS enables use of sbrk(2) to allocate chunks from the data storage 128 * segment (DSS). 129 */ 130#undef JEMALLOC_DSS 131 132/* Support memory filling (junk/zero/quarantine/redzone). */ 133#undef JEMALLOC_FILL 134 135/* Support utrace(2)-based tracing. */ 136#undef JEMALLOC_UTRACE 137 138/* Support Valgrind. */ 139#undef JEMALLOC_VALGRIND 140 141/* Support optional abort() on OOM. */ 142#undef JEMALLOC_XMALLOC 143 144/* Support lazy locking (avoid locking unless a second thread is launched). */ 145#undef JEMALLOC_LAZY_LOCK 146 147/* One page is 2^STATIC_PAGE_SHIFT bytes. */ 148#undef STATIC_PAGE_SHIFT 149 150/* 151 * If defined, use munmap() to unmap freed chunks, rather than storing them for 152 * later reuse. This is disabled by default on Linux because common sequences 153 * of mmap()/munmap() calls will cause virtual memory map holes. 154 */ 155#undef JEMALLOC_MUNMAP 156 157/* TLS is used to map arenas and magazine caches to threads. */ 158#undef JEMALLOC_TLS 159 160/* 161 * ffs()/ffsl() functions to use for bitmapping. Don't use these directly; 162 * instead, use jemalloc_ffs() or jemalloc_ffsl() from util.h. 163 */ 164#undef JEMALLOC_INTERNAL_FFSL 165#undef JEMALLOC_INTERNAL_FFS 166 167/* 168 * JEMALLOC_IVSALLOC enables ivsalloc(), which verifies that pointers reside 169 * within jemalloc-owned chunks before dereferencing them. 170 */ 171#undef JEMALLOC_IVSALLOC 172 173/* 174 * Darwin (OS X) uses zones to work around Mach-O symbol override shortcomings. 175 */ 176#undef JEMALLOC_ZONE 177#undef JEMALLOC_ZONE_VERSION 178 179/* 180 * Methods for purging unused pages differ between operating systems. 181 * 182 * madvise(..., MADV_DONTNEED) : On Linux, this immediately discards pages, 183 * such that new pages will be demand-zeroed if 184 * the address region is later touched. 185 * madvise(..., MADV_FREE) : On FreeBSD and Darwin, this marks pages as being 186 * unused, such that they will be discarded rather 187 * than swapped out. 188 */ 189#undef JEMALLOC_PURGE_MADVISE_DONTNEED 190#undef JEMALLOC_PURGE_MADVISE_FREE 191 192/* 193 * Define if operating system has alloca.h header. 194 */ 195#undef JEMALLOC_HAS_ALLOCA_H 196 197/* C99 restrict keyword supported. */ 198#undef JEMALLOC_HAS_RESTRICT 199 200/* For use by hash code. */ 201#undef JEMALLOC_BIG_ENDIAN 202 203/* sizeof(int) == 2^LG_SIZEOF_INT. */ 204#undef LG_SIZEOF_INT 205 206/* sizeof(long) == 2^LG_SIZEOF_LONG. */ 207#undef LG_SIZEOF_LONG 208 209/* sizeof(intmax_t) == 2^LG_SIZEOF_INTMAX_T. */ 210#undef LG_SIZEOF_INTMAX_T 211 212#endif /* JEMALLOC_INTERNAL_DEFS_H_ */ 213