include/jemalloc/internal/jemalloc_internal_defs.h.in - third_party/jemalloc - Git at Google

 #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 os_unfair_lock_*() functions are available, as provided by Darwin.
  */
 #undef JEMALLOC_OS_UNFAIR_LOCK

 /*
  * Defined if OSSpin*() functions are available, as provided by Darwin, and
  * documented in the spinlock(3) manual page.
  */
 #undef JEMALLOC_OSSPIN

 /* Defined if syscall(2) is available. */
 #undef JEMALLOC_HAVE_SYSCALL

 /*
  * 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 extents from the data storage
  * segment (DSS).
  */
 #undef JEMALLOC_DSS

 /* Support memory filling (junk/zero). */
 #undef JEMALLOC_FILL

 /* Support utrace(2)-based tracing. */
 #undef JEMALLOC_UTRACE

 /* 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 extents, 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 extents 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

 /* Defined if madvise(2) is available. */
 #undef JEMALLOC_HAVE_MADVISE

 /*
  * Methods for purging unused pages differ between operating systems.
  *
  *   madvise(..., MADV_FREE) : This marks pages as being unused, such that they
  *                             will be discarded rather than swapped out.
  *   madvise(..., MADV_DONTNEED) : This immediately discards pages, such that
  *                                 new pages will be demand-zeroed if the
  *                                 address region is later touched.
  */
 #undef JEMALLOC_PURGE_MADVISE_FREE
 #undef JEMALLOC_PURGE_MADVISE_DONTNEED

 /* 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_ */
	#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 os_unfair_lock_*() functions are available, as provided by Darwin.
	*/
	#undef JEMALLOC_OS_UNFAIR_LOCK

	/*
	* Defined if OSSpin*() functions are available, as provided by Darwin, and
	* documented in the spinlock(3) manual page.
	*/
	#undef JEMALLOC_OSSPIN

	/* Defined if syscall(2) is available. */
	#undef JEMALLOC_HAVE_SYSCALL

	/*
	* 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 extents from the data storage
	* segment (DSS).
	*/
	#undef JEMALLOC_DSS

	/* Support memory filling (junk/zero). */
	#undef JEMALLOC_FILL

	/* Support utrace(2)-based tracing. */
	#undef JEMALLOC_UTRACE

	/* 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 extents, 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 extents 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

	/* Defined if madvise(2) is available. */
	#undef JEMALLOC_HAVE_MADVISE

	/*
	* Methods for purging unused pages differ between operating systems.
	*
	* madvise(..., MADV_FREE) : This marks pages as being unused, such that they
	* will be discarded rather than swapped out.
	* madvise(..., MADV_DONTNEED) : This immediately discards pages, such that
	* new pages will be demand-zeroed if the
	* address region is later touched.
	*/
	#undef JEMALLOC_PURGE_MADVISE_FREE
	#undef JEMALLOC_PURGE_MADVISE_DONTNEED

	/* 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_ */