902 lines
23 KiB
C
902 lines
23 KiB
C
#ifndef JEMALLOC_INTERNAL_H
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#define JEMALLOC_INTERNAL_H
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#include "jemalloc_internal_defs.h"
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#include "jemalloc/internal/jemalloc_internal_decls.h"
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#ifdef JEMALLOC_UTRACE
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#include <sys/ktrace.h>
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#endif
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#define JEMALLOC_NO_DEMANGLE
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#ifdef JEMALLOC_JET
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# define JEMALLOC_N(n) jet_##n
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# include "jemalloc/internal/public_namespace.h"
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# define JEMALLOC_NO_RENAME
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# include "../jemalloc@install_suffix@.h"
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# undef JEMALLOC_NO_RENAME
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#else
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# define JEMALLOC_N(n) @private_namespace@##n
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# include "../jemalloc@install_suffix@.h"
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#endif
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#include "jemalloc/internal/private_namespace.h"
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static const bool config_debug =
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#ifdef JEMALLOC_DEBUG
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true
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#else
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false
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#endif
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;
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static const bool have_dss =
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#ifdef JEMALLOC_DSS
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true
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#else
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false
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#endif
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;
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static const bool config_fill =
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#ifdef JEMALLOC_FILL
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true
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#else
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false
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#endif
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;
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static const bool config_lazy_lock =
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#ifdef JEMALLOC_LAZY_LOCK
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true
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#else
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false
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#endif
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;
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static const bool config_prof =
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#ifdef JEMALLOC_PROF
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true
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#else
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false
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#endif
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;
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static const bool config_prof_libgcc =
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#ifdef JEMALLOC_PROF_LIBGCC
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true
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#else
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false
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#endif
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;
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static const bool config_prof_libunwind =
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#ifdef JEMALLOC_PROF_LIBUNWIND
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true
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#else
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false
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#endif
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;
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static const bool config_munmap =
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#ifdef JEMALLOC_MUNMAP
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true
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#else
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false
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#endif
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;
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static const bool config_stats =
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#ifdef JEMALLOC_STATS
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true
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#else
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false
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#endif
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;
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static const bool config_tcache =
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#ifdef JEMALLOC_TCACHE
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true
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#else
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false
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#endif
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;
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static const bool config_tls =
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#ifdef JEMALLOC_TLS
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true
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#else
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false
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#endif
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;
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static const bool config_utrace =
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#ifdef JEMALLOC_UTRACE
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true
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#else
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false
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#endif
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;
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static const bool config_valgrind =
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#ifdef JEMALLOC_VALGRIND
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true
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#else
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false
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#endif
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;
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static const bool config_xmalloc =
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#ifdef JEMALLOC_XMALLOC
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true
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#else
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false
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#endif
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;
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static const bool config_ivsalloc =
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#ifdef JEMALLOC_IVSALLOC
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true
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#else
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false
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#endif
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;
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#ifdef JEMALLOC_ATOMIC9
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#include <machine/atomic.h>
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#endif
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#if (defined(JEMALLOC_OSATOMIC) || defined(JEMALLOC_OSSPIN))
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#include <libkern/OSAtomic.h>
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#endif
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#ifdef JEMALLOC_ZONE
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#include <mach/mach_error.h>
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#include <mach/mach_init.h>
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#include <mach/vm_map.h>
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#include <malloc/malloc.h>
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#endif
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#define RB_COMPACT
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#include "jemalloc/internal/rb.h"
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#include "jemalloc/internal/qr.h"
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#include "jemalloc/internal/ql.h"
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/*
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* jemalloc can conceptually be broken into components (arena, tcache, etc.),
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* but there are circular dependencies that cannot be broken without
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* substantial performance degradation. In order to reduce the effect on
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* visual code flow, read the header files in multiple passes, with one of the
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* following cpp variables defined during each pass:
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*
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* JEMALLOC_H_TYPES : Preprocessor-defined constants and psuedo-opaque data
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* types.
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* JEMALLOC_H_STRUCTS : Data structures.
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* JEMALLOC_H_EXTERNS : Extern data declarations and function prototypes.
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* JEMALLOC_H_INLINES : Inline functions.
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*/
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/******************************************************************************/
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#define JEMALLOC_H_TYPES
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#include "jemalloc/internal/jemalloc_internal_macros.h"
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#define MALLOCX_LG_ALIGN_MASK ((int)0x3f)
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/* Smallest size class to support. */
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#define LG_TINY_MIN 3
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#define TINY_MIN (1U << LG_TINY_MIN)
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/*
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* Minimum alignment of allocations is 2^LG_QUANTUM bytes (ignoring tiny size
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* classes).
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*/
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#ifndef LG_QUANTUM
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# if (defined(__i386__) || defined(_M_IX86))
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# define LG_QUANTUM 4
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# endif
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# ifdef __ia64__
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# define LG_QUANTUM 4
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# endif
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# ifdef __alpha__
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# define LG_QUANTUM 4
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# endif
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# ifdef __sparc64__
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# define LG_QUANTUM 4
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# endif
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# if (defined(__amd64__) || defined(__x86_64__) || defined(_M_X64))
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# define LG_QUANTUM 4
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# endif
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# ifdef __arm__
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# define LG_QUANTUM 3
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# endif
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# ifdef __aarch64__
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# define LG_QUANTUM 4
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# endif
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# ifdef __hppa__
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# define LG_QUANTUM 4
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# endif
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# ifdef __mips__
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# define LG_QUANTUM 3
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# endif
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# ifdef __powerpc__
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# define LG_QUANTUM 4
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# endif
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# ifdef __s390__
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# define LG_QUANTUM 4
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# endif
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# ifdef __SH4__
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# define LG_QUANTUM 4
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# endif
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# ifdef __tile__
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# define LG_QUANTUM 4
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# endif
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# ifndef LG_QUANTUM
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# error "No LG_QUANTUM definition for architecture; specify via CPPFLAGS"
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# endif
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#endif
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#define QUANTUM ((size_t)(1U << LG_QUANTUM))
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#define QUANTUM_MASK (QUANTUM - 1)
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/* Return the smallest quantum multiple that is >= a. */
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#define QUANTUM_CEILING(a) \
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(((a) + QUANTUM_MASK) & ~QUANTUM_MASK)
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#define LONG ((size_t)(1U << LG_SIZEOF_LONG))
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#define LONG_MASK (LONG - 1)
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/* Return the smallest long multiple that is >= a. */
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#define LONG_CEILING(a) \
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(((a) + LONG_MASK) & ~LONG_MASK)
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#define SIZEOF_PTR (1U << LG_SIZEOF_PTR)
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#define PTR_MASK (SIZEOF_PTR - 1)
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/* Return the smallest (void *) multiple that is >= a. */
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#define PTR_CEILING(a) \
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(((a) + PTR_MASK) & ~PTR_MASK)
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/*
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* Maximum size of L1 cache line. This is used to avoid cache line aliasing.
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* In addition, this controls the spacing of cacheline-spaced size classes.
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*
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* CACHELINE cannot be based on LG_CACHELINE because __declspec(align()) can
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* only handle raw constants.
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*/
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#define LG_CACHELINE 6
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#define CACHELINE 64
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#define CACHELINE_MASK (CACHELINE - 1)
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/* Return the smallest cacheline multiple that is >= s. */
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#define CACHELINE_CEILING(s) \
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(((s) + CACHELINE_MASK) & ~CACHELINE_MASK)
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/* Page size. STATIC_PAGE_SHIFT is determined by the configure script. */
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#ifdef PAGE_MASK
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# undef PAGE_MASK
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#endif
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#define LG_PAGE STATIC_PAGE_SHIFT
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#define PAGE ((size_t)(1U << STATIC_PAGE_SHIFT))
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#define PAGE_MASK ((size_t)(PAGE - 1))
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/* Return the smallest pagesize multiple that is >= s. */
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#define PAGE_CEILING(s) \
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(((s) + PAGE_MASK) & ~PAGE_MASK)
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/* Return the nearest aligned address at or below a. */
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#define ALIGNMENT_ADDR2BASE(a, alignment) \
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((void *)((uintptr_t)(a) & (-(alignment))))
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/* Return the offset between a and the nearest aligned address at or below a. */
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#define ALIGNMENT_ADDR2OFFSET(a, alignment) \
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((size_t)((uintptr_t)(a) & (alignment - 1)))
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/* Return the smallest alignment multiple that is >= s. */
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#define ALIGNMENT_CEILING(s, alignment) \
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(((s) + (alignment - 1)) & (-(alignment)))
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/* Declare a variable length array */
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#if __STDC_VERSION__ < 199901L
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# ifdef _MSC_VER
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# include <malloc.h>
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# define alloca _alloca
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# else
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# ifdef JEMALLOC_HAS_ALLOCA_H
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# include <alloca.h>
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# else
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# include <stdlib.h>
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# endif
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# endif
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# define VARIABLE_ARRAY(type, name, count) \
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type *name = alloca(sizeof(type) * (count))
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#else
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# define VARIABLE_ARRAY(type, name, count) type name[(count)]
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#endif
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#include "jemalloc/internal/valgrind.h"
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#include "jemalloc/internal/util.h"
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#include "jemalloc/internal/atomic.h"
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#include "jemalloc/internal/prng.h"
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#include "jemalloc/internal/ckh.h"
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#include "jemalloc/internal/size_classes.h"
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#include "jemalloc/internal/stats.h"
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#include "jemalloc/internal/ctl.h"
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#include "jemalloc/internal/mutex.h"
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#include "jemalloc/internal/tsd.h"
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#include "jemalloc/internal/mb.h"
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#include "jemalloc/internal/extent.h"
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#include "jemalloc/internal/arena.h"
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#include "jemalloc/internal/bitmap.h"
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#include "jemalloc/internal/base.h"
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#include "jemalloc/internal/chunk.h"
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#include "jemalloc/internal/huge.h"
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#include "jemalloc/internal/rtree.h"
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#include "jemalloc/internal/tcache.h"
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#include "jemalloc/internal/hash.h"
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#include "jemalloc/internal/quarantine.h"
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#include "jemalloc/internal/prof.h"
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#undef JEMALLOC_H_TYPES
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/******************************************************************************/
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#define JEMALLOC_H_STRUCTS
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#include "jemalloc/internal/valgrind.h"
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#include "jemalloc/internal/util.h"
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#include "jemalloc/internal/atomic.h"
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#include "jemalloc/internal/prng.h"
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#include "jemalloc/internal/ckh.h"
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#include "jemalloc/internal/size_classes.h"
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#include "jemalloc/internal/stats.h"
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#include "jemalloc/internal/ctl.h"
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#include "jemalloc/internal/mutex.h"
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#include "jemalloc/internal/tsd.h"
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#include "jemalloc/internal/mb.h"
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#include "jemalloc/internal/bitmap.h"
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#include "jemalloc/internal/extent.h"
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#include "jemalloc/internal/arena.h"
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#include "jemalloc/internal/base.h"
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#include "jemalloc/internal/chunk.h"
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#include "jemalloc/internal/huge.h"
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#include "jemalloc/internal/rtree.h"
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#include "jemalloc/internal/tcache.h"
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#include "jemalloc/internal/hash.h"
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#include "jemalloc/internal/quarantine.h"
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#include "jemalloc/internal/prof.h"
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typedef struct {
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uint64_t allocated;
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uint64_t deallocated;
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} thread_allocated_t;
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/*
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* The JEMALLOC_ARG_CONCAT() wrapper is necessary to pass {0, 0} via a cpp macro
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* argument.
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*/
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#define THREAD_ALLOCATED_INITIALIZER JEMALLOC_ARG_CONCAT({0, 0})
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#undef JEMALLOC_H_STRUCTS
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/******************************************************************************/
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#define JEMALLOC_H_EXTERNS
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extern bool opt_abort;
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extern bool opt_junk;
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extern size_t opt_quarantine;
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extern bool opt_redzone;
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extern bool opt_utrace;
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extern bool opt_xmalloc;
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extern bool opt_zero;
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extern size_t opt_narenas;
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extern bool in_valgrind;
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/* Number of CPUs. */
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extern unsigned ncpus;
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/* Protects arenas initialization (arenas, arenas_total). */
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extern malloc_mutex_t arenas_lock;
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/*
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* Arenas that are used to service external requests. Not all elements of the
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* arenas array are necessarily used; arenas are created lazily as needed.
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*
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* arenas[0..narenas_auto) are used for automatic multiplexing of threads and
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* arenas. arenas[narenas_auto..narenas_total) are only used if the application
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* takes some action to create them and allocate from them.
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*/
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extern arena_t **arenas;
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extern unsigned narenas_total;
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extern unsigned narenas_auto; /* Read-only after initialization. */
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arena_t *arenas_extend(unsigned ind);
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void arenas_cleanup(void *arg);
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arena_t *choose_arena_hard(void);
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void jemalloc_prefork(void);
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void jemalloc_postfork_parent(void);
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void jemalloc_postfork_child(void);
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#include "jemalloc/internal/valgrind.h"
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#include "jemalloc/internal/util.h"
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#include "jemalloc/internal/atomic.h"
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#include "jemalloc/internal/prng.h"
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#include "jemalloc/internal/ckh.h"
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#include "jemalloc/internal/size_classes.h"
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#include "jemalloc/internal/stats.h"
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#include "jemalloc/internal/ctl.h"
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#include "jemalloc/internal/mutex.h"
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#include "jemalloc/internal/tsd.h"
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#include "jemalloc/internal/mb.h"
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#include "jemalloc/internal/bitmap.h"
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#include "jemalloc/internal/extent.h"
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#include "jemalloc/internal/arena.h"
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#include "jemalloc/internal/base.h"
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#include "jemalloc/internal/chunk.h"
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#include "jemalloc/internal/huge.h"
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#include "jemalloc/internal/rtree.h"
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#include "jemalloc/internal/tcache.h"
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#include "jemalloc/internal/hash.h"
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#include "jemalloc/internal/quarantine.h"
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#include "jemalloc/internal/prof.h"
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#undef JEMALLOC_H_EXTERNS
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/******************************************************************************/
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#define JEMALLOC_H_INLINES
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#include "jemalloc/internal/valgrind.h"
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#include "jemalloc/internal/util.h"
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#include "jemalloc/internal/atomic.h"
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#include "jemalloc/internal/prng.h"
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#include "jemalloc/internal/ckh.h"
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#include "jemalloc/internal/size_classes.h"
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#include "jemalloc/internal/stats.h"
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#include "jemalloc/internal/ctl.h"
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#include "jemalloc/internal/mutex.h"
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#include "jemalloc/internal/tsd.h"
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#include "jemalloc/internal/mb.h"
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#include "jemalloc/internal/extent.h"
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#include "jemalloc/internal/base.h"
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#include "jemalloc/internal/chunk.h"
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#include "jemalloc/internal/huge.h"
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/*
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* Include arena.h the first time in order to provide inline functions for this
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* header's inlines.
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*/
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#define JEMALLOC_ARENA_INLINE_A
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#include "jemalloc/internal/arena.h"
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#undef JEMALLOC_ARENA_INLINE_A
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#ifndef JEMALLOC_ENABLE_INLINE
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malloc_tsd_protos(JEMALLOC_ATTR(unused), arenas, arena_t *)
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size_t s2u(size_t size);
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size_t sa2u(size_t size, size_t alignment);
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unsigned narenas_total_get(void);
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arena_t *choose_arena(arena_t *arena);
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#endif
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#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_C_))
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/*
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* Map of pthread_self() --> arenas[???], used for selecting an arena to use
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* for allocations.
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*/
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malloc_tsd_externs(arenas, arena_t *)
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malloc_tsd_funcs(JEMALLOC_ALWAYS_INLINE, arenas, arena_t *, NULL,
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arenas_cleanup)
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/*
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* Compute usable size that would result from allocating an object with the
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* specified size.
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*/
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JEMALLOC_ALWAYS_INLINE size_t
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s2u(size_t size)
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{
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if (size <= SMALL_MAXCLASS)
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return (small_bin2size(small_size2bin(size)));
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if (size <= arena_maxclass)
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return (PAGE_CEILING(size));
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return (CHUNK_CEILING(size));
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}
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/*
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* Compute usable size that would result from allocating an object with the
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* specified size and alignment.
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*/
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JEMALLOC_ALWAYS_INLINE size_t
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sa2u(size_t size, size_t alignment)
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{
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size_t usize;
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assert(alignment != 0 && ((alignment - 1) & alignment) == 0);
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/*
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* Round size up to the nearest multiple of alignment.
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*
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* This done, we can take advantage of the fact that for each small
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* size class, every object is aligned at the smallest power of two
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* that is non-zero in the base two representation of the size. For
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* example:
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*
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* Size | Base 2 | Minimum alignment
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* -----+----------+------------------
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* 96 | 1100000 | 32
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* 144 | 10100000 | 32
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* 192 | 11000000 | 64
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*/
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usize = ALIGNMENT_CEILING(size, alignment);
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/*
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* (usize < size) protects against the combination of maximal
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* alignment and size greater than maximal alignment.
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*/
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if (usize < size) {
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/* size_t overflow. */
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return (0);
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}
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if (usize <= arena_maxclass && alignment <= PAGE) {
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if (usize <= SMALL_MAXCLASS)
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return (small_bin2size(small_size2bin(usize)));
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return (PAGE_CEILING(usize));
|
|
} else {
|
|
size_t run_size;
|
|
|
|
/*
|
|
* We can't achieve subpage alignment, so round up alignment
|
|
* permanently; it makes later calculations simpler.
|
|
*/
|
|
alignment = PAGE_CEILING(alignment);
|
|
usize = PAGE_CEILING(size);
|
|
/*
|
|
* (usize < size) protects against very large sizes within
|
|
* PAGE of SIZE_T_MAX.
|
|
*
|
|
* (usize + alignment < usize) protects against the
|
|
* combination of maximal alignment and usize large enough
|
|
* to cause overflow. This is similar to the first overflow
|
|
* check above, but it needs to be repeated due to the new
|
|
* usize value, which may now be *equal* to maximal
|
|
* alignment, whereas before we only detected overflow if the
|
|
* original size was *greater* than maximal alignment.
|
|
*/
|
|
if (usize < size || usize + alignment < usize) {
|
|
/* size_t overflow. */
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Calculate the size of the over-size run that arena_palloc()
|
|
* would need to allocate in order to guarantee the alignment.
|
|
* If the run wouldn't fit within a chunk, round up to a huge
|
|
* allocation size.
|
|
*/
|
|
run_size = usize + alignment - PAGE;
|
|
if (run_size <= arena_maxclass)
|
|
return (PAGE_CEILING(usize));
|
|
return (CHUNK_CEILING(usize));
|
|
}
|
|
}
|
|
|
|
JEMALLOC_INLINE unsigned
|
|
narenas_total_get(void)
|
|
{
|
|
unsigned narenas;
|
|
|
|
malloc_mutex_lock(&arenas_lock);
|
|
narenas = narenas_total;
|
|
malloc_mutex_unlock(&arenas_lock);
|
|
|
|
return (narenas);
|
|
}
|
|
|
|
/* Choose an arena based on a per-thread value. */
|
|
JEMALLOC_INLINE arena_t *
|
|
choose_arena(arena_t *arena)
|
|
{
|
|
arena_t *ret;
|
|
|
|
if (arena != NULL)
|
|
return (arena);
|
|
|
|
if ((ret = *arenas_tsd_get()) == NULL) {
|
|
ret = choose_arena_hard();
|
|
assert(ret != NULL);
|
|
}
|
|
|
|
return (ret);
|
|
}
|
|
#endif
|
|
|
|
#include "jemalloc/internal/bitmap.h"
|
|
#include "jemalloc/internal/rtree.h"
|
|
/*
|
|
* Include arena.h the second and third times in order to resolve circular
|
|
* dependencies with tcache.h.
|
|
*/
|
|
#define JEMALLOC_ARENA_INLINE_B
|
|
#include "jemalloc/internal/arena.h"
|
|
#undef JEMALLOC_ARENA_INLINE_B
|
|
#include "jemalloc/internal/tcache.h"
|
|
#define JEMALLOC_ARENA_INLINE_C
|
|
#include "jemalloc/internal/arena.h"
|
|
#undef JEMALLOC_ARENA_INLINE_C
|
|
#include "jemalloc/internal/hash.h"
|
|
#include "jemalloc/internal/quarantine.h"
|
|
|
|
#ifndef JEMALLOC_ENABLE_INLINE
|
|
void *imalloct(size_t size, bool try_tcache, arena_t *arena);
|
|
void *imalloc(size_t size);
|
|
void *icalloct(size_t size, bool try_tcache, arena_t *arena);
|
|
void *icalloc(size_t size);
|
|
void *ipalloct(size_t usize, size_t alignment, bool zero, bool try_tcache,
|
|
arena_t *arena);
|
|
void *ipalloc(size_t usize, size_t alignment, bool zero);
|
|
size_t isalloc(const void *ptr, bool demote);
|
|
size_t ivsalloc(const void *ptr, bool demote);
|
|
size_t u2rz(size_t usize);
|
|
size_t p2rz(const void *ptr);
|
|
void idalloct(void *ptr, bool try_tcache);
|
|
void idalloc(void *ptr);
|
|
void iqalloct(void *ptr, bool try_tcache);
|
|
void iqalloc(void *ptr);
|
|
void *iralloct_realign(void *ptr, size_t oldsize, size_t size, size_t extra,
|
|
size_t alignment, bool zero, bool try_tcache_alloc, bool try_tcache_dalloc,
|
|
arena_t *arena);
|
|
void *iralloct(void *ptr, size_t size, size_t extra, size_t alignment,
|
|
bool zero, bool try_tcache_alloc, bool try_tcache_dalloc, arena_t *arena);
|
|
void *iralloc(void *ptr, size_t size, size_t extra, size_t alignment,
|
|
bool zero);
|
|
bool ixalloc(void *ptr, size_t size, size_t extra, size_t alignment,
|
|
bool zero);
|
|
malloc_tsd_protos(JEMALLOC_ATTR(unused), thread_allocated, thread_allocated_t)
|
|
#endif
|
|
|
|
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_C_))
|
|
JEMALLOC_ALWAYS_INLINE void *
|
|
imalloct(size_t size, bool try_tcache, arena_t *arena)
|
|
{
|
|
|
|
assert(size != 0);
|
|
|
|
if (size <= arena_maxclass)
|
|
return (arena_malloc(arena, size, false, try_tcache));
|
|
else
|
|
return (huge_malloc(arena, size, false));
|
|
}
|
|
|
|
JEMALLOC_ALWAYS_INLINE void *
|
|
imalloc(size_t size)
|
|
{
|
|
|
|
return (imalloct(size, true, NULL));
|
|
}
|
|
|
|
JEMALLOC_ALWAYS_INLINE void *
|
|
icalloct(size_t size, bool try_tcache, arena_t *arena)
|
|
{
|
|
|
|
if (size <= arena_maxclass)
|
|
return (arena_malloc(arena, size, true, try_tcache));
|
|
else
|
|
return (huge_malloc(arena, size, true));
|
|
}
|
|
|
|
JEMALLOC_ALWAYS_INLINE void *
|
|
icalloc(size_t size)
|
|
{
|
|
|
|
return (icalloct(size, true, NULL));
|
|
}
|
|
|
|
JEMALLOC_ALWAYS_INLINE void *
|
|
ipalloct(size_t usize, size_t alignment, bool zero, bool try_tcache,
|
|
arena_t *arena)
|
|
{
|
|
void *ret;
|
|
|
|
assert(usize != 0);
|
|
assert(usize == sa2u(usize, alignment));
|
|
|
|
if (usize <= arena_maxclass && alignment <= PAGE)
|
|
ret = arena_malloc(arena, usize, zero, try_tcache);
|
|
else {
|
|
if (usize <= arena_maxclass) {
|
|
ret = arena_palloc(choose_arena(arena), usize,
|
|
alignment, zero);
|
|
} else if (alignment <= chunksize)
|
|
ret = huge_malloc(arena, usize, zero);
|
|
else
|
|
ret = huge_palloc(arena, usize, alignment, zero);
|
|
}
|
|
|
|
assert(ALIGNMENT_ADDR2BASE(ret, alignment) == ret);
|
|
return (ret);
|
|
}
|
|
|
|
JEMALLOC_ALWAYS_INLINE void *
|
|
ipalloc(size_t usize, size_t alignment, bool zero)
|
|
{
|
|
|
|
return (ipalloct(usize, alignment, zero, true, NULL));
|
|
}
|
|
|
|
/*
|
|
* Typical usage:
|
|
* void *ptr = [...]
|
|
* size_t sz = isalloc(ptr, config_prof);
|
|
*/
|
|
JEMALLOC_ALWAYS_INLINE size_t
|
|
isalloc(const void *ptr, bool demote)
|
|
{
|
|
size_t ret;
|
|
arena_chunk_t *chunk;
|
|
|
|
assert(ptr != NULL);
|
|
/* Demotion only makes sense if config_prof is true. */
|
|
assert(config_prof || demote == false);
|
|
|
|
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
|
|
if (chunk != ptr)
|
|
ret = arena_salloc(ptr, demote);
|
|
else
|
|
ret = huge_salloc(ptr);
|
|
|
|
return (ret);
|
|
}
|
|
|
|
JEMALLOC_ALWAYS_INLINE size_t
|
|
ivsalloc(const void *ptr, bool demote)
|
|
{
|
|
|
|
/* Return 0 if ptr is not within a chunk managed by jemalloc. */
|
|
if (rtree_get(chunks_rtree, (uintptr_t)CHUNK_ADDR2BASE(ptr)) == 0)
|
|
return (0);
|
|
|
|
return (isalloc(ptr, demote));
|
|
}
|
|
|
|
JEMALLOC_INLINE size_t
|
|
u2rz(size_t usize)
|
|
{
|
|
size_t ret;
|
|
|
|
if (usize <= SMALL_MAXCLASS) {
|
|
size_t binind = small_size2bin(usize);
|
|
ret = arena_bin_info[binind].redzone_size;
|
|
} else
|
|
ret = 0;
|
|
|
|
return (ret);
|
|
}
|
|
|
|
JEMALLOC_INLINE size_t
|
|
p2rz(const void *ptr)
|
|
{
|
|
size_t usize = isalloc(ptr, false);
|
|
|
|
return (u2rz(usize));
|
|
}
|
|
|
|
JEMALLOC_ALWAYS_INLINE void
|
|
idalloct(void *ptr, bool try_tcache)
|
|
{
|
|
arena_chunk_t *chunk;
|
|
|
|
assert(ptr != NULL);
|
|
|
|
chunk = (arena_chunk_t *)CHUNK_ADDR2BASE(ptr);
|
|
if (chunk != ptr)
|
|
arena_dalloc(chunk, ptr, try_tcache);
|
|
else
|
|
huge_dalloc(ptr);
|
|
}
|
|
|
|
JEMALLOC_ALWAYS_INLINE void
|
|
idalloc(void *ptr)
|
|
{
|
|
|
|
idalloct(ptr, true);
|
|
}
|
|
|
|
JEMALLOC_ALWAYS_INLINE void
|
|
iqalloct(void *ptr, bool try_tcache)
|
|
{
|
|
|
|
if (config_fill && opt_quarantine)
|
|
quarantine(ptr);
|
|
else
|
|
idalloct(ptr, try_tcache);
|
|
}
|
|
|
|
JEMALLOC_ALWAYS_INLINE void
|
|
iqalloc(void *ptr)
|
|
{
|
|
|
|
iqalloct(ptr, true);
|
|
}
|
|
|
|
JEMALLOC_ALWAYS_INLINE void *
|
|
iralloct_realign(void *ptr, size_t oldsize, size_t size, size_t extra,
|
|
size_t alignment, bool zero, bool try_tcache_alloc, bool try_tcache_dalloc,
|
|
arena_t *arena)
|
|
{
|
|
void *p;
|
|
size_t usize, copysize;
|
|
|
|
usize = sa2u(size + extra, alignment);
|
|
if (usize == 0)
|
|
return (NULL);
|
|
p = ipalloct(usize, alignment, zero, try_tcache_alloc, arena);
|
|
if (p == NULL) {
|
|
if (extra == 0)
|
|
return (NULL);
|
|
/* Try again, without extra this time. */
|
|
usize = sa2u(size, alignment);
|
|
if (usize == 0)
|
|
return (NULL);
|
|
p = ipalloct(usize, alignment, zero, try_tcache_alloc, arena);
|
|
if (p == NULL)
|
|
return (NULL);
|
|
}
|
|
/*
|
|
* Copy at most size bytes (not size+extra), since the caller has no
|
|
* expectation that the extra bytes will be reliably preserved.
|
|
*/
|
|
copysize = (size < oldsize) ? size : oldsize;
|
|
memcpy(p, ptr, copysize);
|
|
iqalloct(ptr, try_tcache_dalloc);
|
|
return (p);
|
|
}
|
|
|
|
JEMALLOC_ALWAYS_INLINE void *
|
|
iralloct(void *ptr, size_t size, size_t extra, size_t alignment, bool zero,
|
|
bool try_tcache_alloc, bool try_tcache_dalloc, arena_t *arena)
|
|
{
|
|
size_t oldsize;
|
|
|
|
assert(ptr != NULL);
|
|
assert(size != 0);
|
|
|
|
oldsize = isalloc(ptr, config_prof);
|
|
|
|
if (alignment != 0 && ((uintptr_t)ptr & ((uintptr_t)alignment-1))
|
|
!= 0) {
|
|
/*
|
|
* Existing object alignment is inadequate; allocate new space
|
|
* and copy.
|
|
*/
|
|
return (iralloct_realign(ptr, oldsize, size, extra, alignment,
|
|
zero, try_tcache_alloc, try_tcache_dalloc, arena));
|
|
}
|
|
|
|
if (size + extra <= arena_maxclass) {
|
|
return (arena_ralloc(arena, ptr, oldsize, size, extra,
|
|
alignment, zero, try_tcache_alloc,
|
|
try_tcache_dalloc));
|
|
} else {
|
|
return (huge_ralloc(arena, ptr, oldsize, size, extra,
|
|
alignment, zero, try_tcache_dalloc));
|
|
}
|
|
}
|
|
|
|
JEMALLOC_ALWAYS_INLINE void *
|
|
iralloc(void *ptr, size_t size, size_t extra, size_t alignment, bool zero)
|
|
{
|
|
|
|
return (iralloct(ptr, size, extra, alignment, zero, true, true, NULL));
|
|
}
|
|
|
|
JEMALLOC_ALWAYS_INLINE bool
|
|
ixalloc(void *ptr, size_t size, size_t extra, size_t alignment, bool zero)
|
|
{
|
|
size_t oldsize;
|
|
|
|
assert(ptr != NULL);
|
|
assert(size != 0);
|
|
|
|
oldsize = isalloc(ptr, config_prof);
|
|
if (alignment != 0 && ((uintptr_t)ptr & ((uintptr_t)alignment-1))
|
|
!= 0) {
|
|
/* Existing object alignment is inadequate. */
|
|
return (true);
|
|
}
|
|
|
|
if (size <= arena_maxclass)
|
|
return (arena_ralloc_no_move(ptr, oldsize, size, extra, zero));
|
|
else
|
|
return (huge_ralloc_no_move(ptr, oldsize, size, extra));
|
|
}
|
|
|
|
malloc_tsd_externs(thread_allocated, thread_allocated_t)
|
|
malloc_tsd_funcs(JEMALLOC_ALWAYS_INLINE, thread_allocated, thread_allocated_t,
|
|
THREAD_ALLOCATED_INITIALIZER, malloc_tsd_no_cleanup)
|
|
#endif
|
|
|
|
#include "jemalloc/internal/prof.h"
|
|
|
|
#undef JEMALLOC_H_INLINES
|
|
/******************************************************************************/
|
|
#endif /* JEMALLOC_INTERNAL_H */
|