155 lines
4.4 KiB
C
155 lines
4.4 KiB
C
#ifndef JEMALLOC_DEFS_H_
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#define JEMALLOC_DEFS_H_
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/*
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* If JEMALLOC_PREFIX is defined, it will cause all public APIs to be prefixed.
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* This makes it possible, with some care, to use multiple allocators
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* simultaneously.
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*
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* In many cases it is more convenient to manually prefix allocator function
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* calls than to let macros do it automatically, particularly when using
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* multiple allocators simultaneously. Define JEMALLOC_MANGLE before
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* #include'ing jemalloc.h in order to cause name mangling that corresponds to
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* the API prefixing.
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*/
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#undef JEMALLOC_PREFIX
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#undef JEMALLOC_CPREFIX
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#if (defined(JEMALLOC_PREFIX) && defined(JEMALLOC_MANGLE))
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#undef JEMALLOC_P
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#endif
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/*
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* JEMALLOC_PRIVATE_NAMESPACE is used as a prefix for all library-private APIs.
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* For shared libraries, symbol visibility mechanisms prevent these symbols
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* from being exported, but for static libraries, naming collisions are a real
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* possibility.
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*/
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#undef JEMALLOC_PRIVATE_NAMESPACE
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#undef JEMALLOC_N
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/*
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* Hyper-threaded CPUs may need a special instruction inside spin loops in
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* order to yield to another virtual CPU.
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*/
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#undef CPU_SPINWAIT
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/*
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* Defined if OSAtomic*() functions are available, as provided by Darwin, and
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* documented in the atomic(3) manual page.
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*/
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#undef JEMALLOC_OSATOMIC
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/*
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* Defined if OSSpin*() functions are available, as provided by Darwin, and
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* documented in the spinlock(3) manual page.
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*/
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#undef JEMALLOC_OSSPIN
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/* Defined if __attribute__((...)) syntax is supported. */
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#undef JEMALLOC_HAVE_ATTR
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#ifdef JEMALLOC_HAVE_ATTR
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# define JEMALLOC_CATTR(s, a) __attribute__((s))
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# define JEMALLOC_ATTR(s) JEMALLOC_CATTR(s,)
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#else
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# define JEMALLOC_CATTR(s, a) a
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# define JEMALLOC_ATTR(s) JEMALLOC_CATTR(s,)
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#endif
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/* JEMALLOC_CC_SILENCE enables code that silences unuseful compiler warnings. */
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#undef JEMALLOC_CC_SILENCE
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/*
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* JEMALLOC_DEBUG enables assertions and other sanity checks, and disables
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* inline functions.
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*/
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#undef JEMALLOC_DEBUG
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/* JEMALLOC_STATS enables statistics calculation. */
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#undef JEMALLOC_STATS
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/* JEMALLOC_PROF enables allocation profiling. */
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#undef JEMALLOC_PROF
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/* Use libunwind for profile backtracing if defined. */
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#undef JEMALLOC_PROF_LIBUNWIND
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/* Use libgcc for profile backtracing if defined. */
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#undef JEMALLOC_PROF_LIBGCC
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/* Use gcc intrinsics for profile backtracing if defined. */
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#undef JEMALLOC_PROF_GCC
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/*
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* JEMALLOC_TCACHE enables a thread-specific caching layer for small objects.
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* This makes it possible to allocate/deallocate objects without any locking
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* when the cache is in the steady state.
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*/
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#undef JEMALLOC_TCACHE
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/*
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* JEMALLOC_DSS enables use of sbrk(2) to allocate chunks from the data storage
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* segment (DSS).
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*/
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#undef JEMALLOC_DSS
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/* Support memory filling (junk/zero). */
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#undef JEMALLOC_FILL
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/* Support optional abort() on OOM. */
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#undef JEMALLOC_XMALLOC
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/* Support lazy locking (avoid locking unless a second thread is launched). */
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#undef JEMALLOC_LAZY_LOCK
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/* One page is 2^STATIC_PAGE_SHIFT bytes. */
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#undef STATIC_PAGE_SHIFT
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/* TLS is used to map arenas and magazine caches to threads. */
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#undef NO_TLS
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/*
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* JEMALLOC_IVSALLOC enables ivsalloc(), which verifies that pointers reside
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* within jemalloc-owned chunks before dereferencing them.
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*/
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#undef JEMALLOC_IVSALLOC
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/*
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* Define overrides for non-standard allocator-related functions if they
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* are present on the system.
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*/
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#undef JEMALLOC_OVERRIDE_MEMALIGN
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#undef JEMALLOC_OVERRIDE_VALLOC
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/*
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* Darwin (OS X) uses zones to work around Mach-O symbol override shortcomings.
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*/
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#undef JEMALLOC_ZONE
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#undef JEMALLOC_ZONE_VERSION
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/* If defined, use mremap(...MREMAP_FIXED...) for huge realloc(). */
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#undef JEMALLOC_MREMAP_FIXED
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/*
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* Methods for purging unused pages differ between operating systems.
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*
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* madvise(..., MADV_DONTNEED) : On Linux, this immediately discards pages,
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* such that new pages will be demand-zeroed if
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* the address region is later touched.
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* madvise(..., MADV_FREE) : On FreeBSD and Darwin, this marks pages as being
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* unused, such that they will be discarded rather
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* than swapped out.
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*/
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#undef JEMALLOC_PURGE_MADVISE_DONTNEED
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#undef JEMALLOC_PURGE_MADVISE_FREE
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/* sizeof(void *) == 2^LG_SIZEOF_PTR. */
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#undef LG_SIZEOF_PTR
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/* sizeof(int) == 2^LG_SIZEOF_INT. */
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#undef LG_SIZEOF_INT
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/* sizeof(long) == 2^LG_SIZEOF_LONG. */
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#undef LG_SIZEOF_LONG
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#endif /* JEMALLOC_DEFS_H_ */
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