#ifndef JEMALLOC_INTERNAL_DEFS_H_ #define JEMALLOC_INTERNAL_DEFS_H_ /* * If JEMALLOC_PREFIX is defined via --with-jemalloc-prefix, it will cause all * public APIs to be prefixed. This makes it possible, with some care, to use * multiple allocators simultaneously. */ #undef JEMALLOC_PREFIX #undef JEMALLOC_CPREFIX /* * JEMALLOC_PRIVATE_NAMESPACE is used as a prefix for all library-private APIs. * For shared libraries, symbol visibility mechanisms prevent these symbols * from being exported, but for static libraries, naming collisions are a real * possibility. */ #undef JEMALLOC_PRIVATE_NAMESPACE /* * Hyper-threaded CPUs may need a special instruction inside spin loops in * order to yield to another virtual CPU. */ #undef CPU_SPINWAIT /* Defined if C11 atomics are available. */ #undef JEMALLOC_C11ATOMICS /* Defined if the equivalent of FreeBSD's atomic(9) functions are available. */ #undef JEMALLOC_ATOMIC9 /* * Defined if OSAtomic*() functions are available, as provided by Darwin, and * documented in the atomic(3) manual page. */ #undef JEMALLOC_OSATOMIC /* * Defined if __sync_add_and_fetch(uint32_t *, uint32_t) and * __sync_sub_and_fetch(uint32_t *, uint32_t) are available, despite * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 not being defined (which means the * functions are defined in libgcc instead of being inlines). */ #undef JE_FORCE_SYNC_COMPARE_AND_SWAP_4 /* * Defined if __sync_add_and_fetch(uint64_t *, uint64_t) and * __sync_sub_and_fetch(uint64_t *, uint64_t) are available, despite * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 not being defined (which means the * functions are defined in libgcc instead of being inlines). */ #undef JE_FORCE_SYNC_COMPARE_AND_SWAP_8 /* * Defined if __builtin_clz() and __builtin_clzl() are available. */ #undef JEMALLOC_HAVE_BUILTIN_CLZ /* * Defined if madvise(2) is available. */ #undef JEMALLOC_HAVE_MADVISE /* * Defined if OSSpin*() functions are available, as provided by Darwin, and * documented in the spinlock(3) manual page. */ #undef JEMALLOC_OSSPIN /* * Defined if secure_getenv(3) is available. */ #undef JEMALLOC_HAVE_SECURE_GETENV /* * Defined if issetugid(2) is available. */ #undef JEMALLOC_HAVE_ISSETUGID /* * Defined if clock_gettime(CLOCK_MONOTONIC_COARSE, ...) is available. */ #undef JEMALLOC_HAVE_CLOCK_MONOTONIC_COARSE /* * Defined if clock_gettime(CLOCK_MONOTONIC, ...) is available. */ #undef JEMALLOC_HAVE_CLOCK_MONOTONIC /* * Defined if mach_absolute_time() is available. */ #undef JEMALLOC_HAVE_MACH_ABSOLUTE_TIME /* * Defined if _malloc_thread_cleanup() exists. At least in the case of * FreeBSD, pthread_key_create() allocates, which if used during malloc * bootstrapping will cause recursion into the pthreads library. Therefore, if * _malloc_thread_cleanup() exists, use it as the basis for thread cleanup in * malloc_tsd. */ #undef JEMALLOC_MALLOC_THREAD_CLEANUP /* * Defined if threaded initialization is known to be safe on this platform. * Among other things, it must be possible to initialize a mutex without * triggering allocation in order for threaded allocation to be safe. */ #undef JEMALLOC_THREADED_INIT /* * Defined if the pthreads implementation defines * _pthread_mutex_init_calloc_cb(), in which case the function is used in order * to avoid recursive allocation during mutex initialization. */ #undef JEMALLOC_MUTEX_INIT_CB /* Non-empty if the tls_model attribute is supported. */ #undef JEMALLOC_TLS_MODEL /* JEMALLOC_CC_SILENCE enables code that silences unuseful compiler warnings. */ #undef JEMALLOC_CC_SILENCE /* JEMALLOC_CODE_COVERAGE enables test code coverage analysis. */ #undef JEMALLOC_CODE_COVERAGE /* * JEMALLOC_DEBUG enables assertions and other sanity checks, and disables * inline functions. */ #undef JEMALLOC_DEBUG /* JEMALLOC_STATS enables statistics calculation. */ #undef JEMALLOC_STATS /* JEMALLOC_PROF enables allocation profiling. */ #undef JEMALLOC_PROF /* Use libunwind for profile backtracing if defined. */ #undef JEMALLOC_PROF_LIBUNWIND /* Use libgcc for profile backtracing if defined. */ #undef JEMALLOC_PROF_LIBGCC /* Use gcc intrinsics for profile backtracing if defined. */ #undef JEMALLOC_PROF_GCC /* * JEMALLOC_TCACHE enables a thread-specific caching layer for small objects. * This makes it possible to allocate/deallocate objects without any locking * when the cache is in the steady state. */ #undef JEMALLOC_TCACHE /* * JEMALLOC_DSS enables use of sbrk(2) to allocate chunks from the data storage * segment (DSS). */ #undef JEMALLOC_DSS /* Support memory filling (junk/zero/quarantine/redzone). */ #undef JEMALLOC_FILL /* Support utrace(2)-based tracing. */ #undef JEMALLOC_UTRACE /* Support Valgrind. */ #undef JEMALLOC_VALGRIND /* Support optional abort() on OOM. */ #undef JEMALLOC_XMALLOC /* Support lazy locking (avoid locking unless a second thread is launched). */ #undef JEMALLOC_LAZY_LOCK /* Minimum size class to support is 2^LG_TINY_MIN bytes. */ #undef LG_TINY_MIN /* * Minimum allocation alignment is 2^LG_QUANTUM bytes (ignoring tiny size * classes). */ #undef LG_QUANTUM /* One page is 2^LG_PAGE bytes. */ #undef LG_PAGE /* * If defined, adjacent virtual memory mappings with identical attributes * automatically coalesce, and they fragment when changes are made to subranges. * This is the normal order of things for mmap()/munmap(), but on Windows * VirtualAlloc()/VirtualFree() operations must be precisely matched, i.e. * mappings do *not* coalesce/fragment. */ #undef JEMALLOC_MAPS_COALESCE /* * If defined, use munmap() to unmap freed chunks, rather than storing them for * later reuse. This is disabled by default on Linux because common sequences * of mmap()/munmap() calls will cause virtual memory map holes. */ #undef JEMALLOC_MUNMAP /* TLS is used to map arenas and magazine caches to threads. */ #undef JEMALLOC_TLS /* * Used to mark unreachable code to quiet "end of non-void" compiler warnings. * Don't use this directly; instead use unreachable() from util.h */ #undef JEMALLOC_INTERNAL_UNREACHABLE /* * ffs*() functions to use for bitmapping. Don't use these directly; instead, * use ffs_*() from util.h. */ #undef JEMALLOC_INTERNAL_FFSLL #undef JEMALLOC_INTERNAL_FFSL #undef JEMALLOC_INTERNAL_FFS /* * JEMALLOC_IVSALLOC enables ivsalloc(), which verifies that pointers reside * within jemalloc-owned chunks before dereferencing them. */ #undef JEMALLOC_IVSALLOC /* * If defined, explicitly attempt to more uniformly distribute large allocation * pointer alignments across all cache indices. */ #undef JEMALLOC_CACHE_OBLIVIOUS /* * Darwin (OS X) uses zones to work around Mach-O symbol override shortcomings. */ #undef JEMALLOC_ZONE #undef JEMALLOC_ZONE_VERSION /* * Methods for determining whether the OS overcommits. * JEMALLOC_PROC_SYS_VM_OVERCOMMIT_MEMORY: Linux's * /proc/sys/vm.overcommit_memory file. * JEMALLOC_SYSCTL_VM_OVERCOMMIT: FreeBSD's vm.overcommit sysctl. */ #undef JEMALLOC_SYSCTL_VM_OVERCOMMIT #undef JEMALLOC_PROC_SYS_VM_OVERCOMMIT_MEMORY /* * Methods for purging unused pages differ between operating systems. * * madvise(..., MADV_DONTNEED) : On Linux, this immediately discards pages, * such that new pages will be demand-zeroed if * the address region is later touched. * madvise(..., MADV_FREE) : On FreeBSD and Darwin, this marks pages as being * unused, such that they will be discarded rather * than swapped out. */ #undef JEMALLOC_PURGE_MADVISE_DONTNEED #undef JEMALLOC_PURGE_MADVISE_FREE /* Define if operating system has alloca.h header. */ #undef JEMALLOC_HAS_ALLOCA_H /* C99 restrict keyword supported. */ #undef JEMALLOC_HAS_RESTRICT /* For use by hash code. */ #undef JEMALLOC_BIG_ENDIAN /* sizeof(int) == 2^LG_SIZEOF_INT. */ #undef LG_SIZEOF_INT /* sizeof(long) == 2^LG_SIZEOF_LONG. */ #undef LG_SIZEOF_LONG /* sizeof(long long) == 2^LG_SIZEOF_LONG_LONG. */ #undef LG_SIZEOF_LONG_LONG /* sizeof(intmax_t) == 2^LG_SIZEOF_INTMAX_T. */ #undef LG_SIZEOF_INTMAX_T /* glibc malloc hooks (__malloc_hook, __realloc_hook, __free_hook). */ #undef JEMALLOC_GLIBC_MALLOC_HOOK /* glibc memalign hook. */ #undef JEMALLOC_GLIBC_MEMALIGN_HOOK /* Adaptive mutex support in pthreads. */ #undef JEMALLOC_HAVE_PTHREAD_MUTEX_ADAPTIVE_NP /* * If defined, jemalloc symbols are not exported (doesn't work when * JEMALLOC_PREFIX is not defined). */ #undef JEMALLOC_EXPORT /* config.malloc_conf options string. */ #undef JEMALLOC_CONFIG_MALLOC_CONF #endif /* JEMALLOC_INTERNAL_DEFS_H_ */