1 files changed, 0 insertions, 469 deletions
diff --git a/deps/jemalloc/src/zone.c b/deps/jemalloc/src/zone.c
deleted file mode 100644
index 23dfdd04a..000000000
--- a/deps/jemalloc/src/zone.c
+++ /dev/null
@@ -1,469 +0,0 @@
-#include "jemalloc/internal/jemalloc_preamble.h"
-#include "jemalloc/internal/jemalloc_internal_includes.h"
-
-#include "jemalloc/internal/assert.h"
-
-#ifndef JEMALLOC_ZONE
-#  error "This source file is for zones on Darwin (OS X)."
-#endif
-
-/* Definitions of the following structs in malloc/malloc.h might be too old
- * for the built binary to run on newer versions of OSX. So use the newest
- * possible version of those structs.
- */
-typedef struct _malloc_zone_t {
-	void *reserved1;
-	void *reserved2;
-	size_t (*size)(struct _malloc_zone_t *, const void *);
-	void *(*malloc)(struct _malloc_zone_t *, size_t);
-	void *(*calloc)(struct _malloc_zone_t *, size_t, size_t);
-	void *(*valloc)(struct _malloc_zone_t *, size_t);
-	void (*free)(struct _malloc_zone_t *, void *);
-	void *(*realloc)(struct _malloc_zone_t *, void *, size_t);
-	void (*destroy)(struct _malloc_zone_t *);
-	const char *zone_name;
-	unsigned (*batch_malloc)(struct _malloc_zone_t *, size_t, void **, unsigned);
-	void (*batch_free)(struct _malloc_zone_t *, void **, unsigned);
-	struct malloc_introspection_t *introspect;
-	unsigned version;
-	void *(*memalign)(struct _malloc_zone_t *, size_t, size_t);
-	void (*free_definite_size)(struct _malloc_zone_t *, void *, size_t);
-	size_t (*pressure_relief)(struct _malloc_zone_t *, size_t);
-} malloc_zone_t;
-
-typedef struct {
-	vm_address_t address;
-	vm_size_t size;
-} vm_range_t;
-
-typedef struct malloc_statistics_t {
-	unsigned blocks_in_use;
-	size_t size_in_use;
-	size_t max_size_in_use;
-	size_t size_allocated;
-} malloc_statistics_t;
-
-typedef kern_return_t memory_reader_t(task_t, vm_address_t, vm_size_t, void **);
-
-typedef void vm_range_recorder_t(task_t, void *, unsigned type, vm_range_t *, unsigned);
-
-typedef struct malloc_introspection_t {
-	kern_return_t (*enumerator)(task_t, void *, unsigned, vm_address_t, memory_reader_t, vm_range_recorder_t);
-	size_t (*good_size)(malloc_zone_t *, size_t);
-	boolean_t (*check)(malloc_zone_t *);
-	void (*print)(malloc_zone_t *, boolean_t);
-	void (*log)(malloc_zone_t *, void *);
-	void (*force_lock)(malloc_zone_t *);
-	void (*force_unlock)(malloc_zone_t *);
-	void (*statistics)(malloc_zone_t *, malloc_statistics_t *);
-	boolean_t (*zone_locked)(malloc_zone_t *);
-	boolean_t (*enable_discharge_checking)(malloc_zone_t *);
-	boolean_t (*disable_discharge_checking)(malloc_zone_t *);
-	void (*discharge)(malloc_zone_t *, void *);
-#ifdef __BLOCKS__
-	void (*enumerate_discharged_pointers)(malloc_zone_t *, void (^)(void *, void *));
-#else
-	void *enumerate_unavailable_without_blocks;
-#endif
-	void (*reinit_lock)(malloc_zone_t *);
-} malloc_introspection_t;
-
-extern kern_return_t malloc_get_all_zones(task_t, memory_reader_t, vm_address_t **, unsigned *);
-
-extern malloc_zone_t *malloc_default_zone(void);
-
-extern void malloc_zone_register(malloc_zone_t *zone);
-
-extern void malloc_zone_unregister(malloc_zone_t *zone);
-
-/*
- * The malloc_default_purgeable_zone() function is only available on >= 10.6.
- * We need to check whether it is present at runtime, thus the weak_import.
- */
-extern malloc_zone_t *malloc_default_purgeable_zone(void)
-JEMALLOC_ATTR(weak_import);
-
-/******************************************************************************/
-/* Data. */
-
-static malloc_zone_t *default_zone, *purgeable_zone;
-static malloc_zone_t jemalloc_zone;
-static struct malloc_introspection_t jemalloc_zone_introspect;
-static pid_t zone_force_lock_pid = -1;
-
-/******************************************************************************/
-/* Function prototypes for non-inline static functions. */
-
-static size_t	zone_size(malloc_zone_t *zone, const void *ptr);
-static void	*zone_malloc(malloc_zone_t *zone, size_t size);
-static void	*zone_calloc(malloc_zone_t *zone, size_t num, size_t size);
-static void	*zone_valloc(malloc_zone_t *zone, size_t size);
-static void	zone_free(malloc_zone_t *zone, void *ptr);
-static void	*zone_realloc(malloc_zone_t *zone, void *ptr, size_t size);
-static void	*zone_memalign(malloc_zone_t *zone, size_t alignment,
-    size_t size);
-static void	zone_free_definite_size(malloc_zone_t *zone, void *ptr,
-    size_t size);
-static void	zone_destroy(malloc_zone_t *zone);
-static unsigned	zone_batch_malloc(struct _malloc_zone_t *zone, size_t size,
-    void **results, unsigned num_requested);
-static void	zone_batch_free(struct _malloc_zone_t *zone,
-    void **to_be_freed, unsigned num_to_be_freed);
-static size_t	zone_pressure_relief(struct _malloc_zone_t *zone, size_t goal);
-static size_t	zone_good_size(malloc_zone_t *zone, size_t size);
-static kern_return_t	zone_enumerator(task_t task, void *data, unsigned type_mask,
-    vm_address_t zone_address, memory_reader_t reader,
-    vm_range_recorder_t recorder);
-static boolean_t	zone_check(malloc_zone_t *zone);
-static void	zone_print(malloc_zone_t *zone, boolean_t verbose);
-static void	zone_log(malloc_zone_t *zone, void *address);
-static void	zone_force_lock(malloc_zone_t *zone);
-static void	zone_force_unlock(malloc_zone_t *zone);
-static void	zone_statistics(malloc_zone_t *zone,
-    malloc_statistics_t *stats);
-static boolean_t	zone_locked(malloc_zone_t *zone);
-static void	zone_reinit_lock(malloc_zone_t *zone);
-
-/******************************************************************************/
-/*
- * Functions.
- */
-
-static size_t
-zone_size(malloc_zone_t *zone, const void *ptr) {
-	/*
-	 * There appear to be places within Darwin (such as setenv(3)) that
-	 * cause calls to this function with pointers that *no* zone owns.  If
-	 * we knew that all pointers were owned by *some* zone, we could split
-	 * our zone into two parts, and use one as the default allocator and
-	 * the other as the default deallocator/reallocator.  Since that will
-	 * not work in practice, we must check all pointers to assure that they
-	 * reside within a mapped extent before determining size.
-	 */
-	return ivsalloc(tsdn_fetch(), ptr);
-}
-
-static void *
-zone_malloc(malloc_zone_t *zone, size_t size) {
-	return je_malloc(size);
-}
-
-static void *
-zone_calloc(malloc_zone_t *zone, size_t num, size_t size) {
-	return je_calloc(num, size);
-}
-
-static void *
-zone_valloc(malloc_zone_t *zone, size_t size) {
-	void *ret = NULL; /* Assignment avoids useless compiler warning. */
-
-	je_posix_memalign(&ret, PAGE, size);
-
-	return ret;
-}
-
-static void
-zone_free(malloc_zone_t *zone, void *ptr) {
-	if (ivsalloc(tsdn_fetch(), ptr) != 0) {
-		je_free(ptr);
-		return;
-	}
-
-	free(ptr);
-}
-
-static void *
-zone_realloc(malloc_zone_t *zone, void *ptr, size_t size) {
-	if (ivsalloc(tsdn_fetch(), ptr) != 0) {
-		return je_realloc(ptr, size);
-	}
-
-	return realloc(ptr, size);
-}
-
-static void *
-zone_memalign(malloc_zone_t *zone, size_t alignment, size_t size) {
-	void *ret = NULL; /* Assignment avoids useless compiler warning. */
-
-	je_posix_memalign(&ret, alignment, size);
-
-	return ret;
-}
-
-static void
-zone_free_definite_size(malloc_zone_t *zone, void *ptr, size_t size) {
-	size_t alloc_size;
-
-	alloc_size = ivsalloc(tsdn_fetch(), ptr);
-	if (alloc_size != 0) {
-		assert(alloc_size == size);
-		je_free(ptr);
-		return;
-	}
-
-	free(ptr);
-}
-
-static void
-zone_destroy(malloc_zone_t *zone) {
-	/* This function should never be called. */
-	not_reached();
-}
-
-static unsigned
-zone_batch_malloc(struct _malloc_zone_t *zone, size_t size, void **results,
-    unsigned num_requested) {
-	unsigned i;
-
-	for (i = 0; i < num_requested; i++) {
-		results[i] = je_malloc(size);
-		if (!results[i])
-			break;
-	}
-
-	return i;
-}
-
-static void
-zone_batch_free(struct _malloc_zone_t *zone, void **to_be_freed,
-    unsigned num_to_be_freed) {
-	unsigned i;
-
-	for (i = 0; i < num_to_be_freed; i++) {
-		zone_free(zone, to_be_freed[i]);
-		to_be_freed[i] = NULL;
-	}
-}
-
-static size_t
-zone_pressure_relief(struct _malloc_zone_t *zone, size_t goal) {
-	return 0;
-}
-
-static size_t
-zone_good_size(malloc_zone_t *zone, size_t size) {
-	if (size == 0) {
-		size = 1;
-	}
-	return sz_s2u(size);
-}
-
-static kern_return_t
-zone_enumerator(task_t task, void *data, unsigned type_mask,
-    vm_address_t zone_address, memory_reader_t reader,
-    vm_range_recorder_t recorder) {
-	return KERN_SUCCESS;
-}
-
-static boolean_t
-zone_check(malloc_zone_t *zone) {
-	return true;
-}
-
-static void
-zone_print(malloc_zone_t *zone, boolean_t verbose) {
-}
-
-static void
-zone_log(malloc_zone_t *zone, void *address) {
-}
-
-static void
-zone_force_lock(malloc_zone_t *zone) {
-	if (isthreaded) {
-		/*
-		 * See the note in zone_force_unlock, below, to see why we need
-		 * this.
-		 */
-		assert(zone_force_lock_pid == -1);
-		zone_force_lock_pid = getpid();
-		jemalloc_prefork();
-	}
-}
-
-static void
-zone_force_unlock(malloc_zone_t *zone) {
-	/*
-	 * zone_force_lock and zone_force_unlock are the entry points to the
-	 * forking machinery on OS X.  The tricky thing is, the child is not
-	 * allowed to unlock mutexes locked in the parent, even if owned by the
-	 * forking thread (and the mutex type we use in OS X will fail an assert
-	 * if we try).  In the child, we can get away with reinitializing all
-	 * the mutexes, which has the effect of unlocking them.  In the parent,
-	 * doing this would mean we wouldn't wake any waiters blocked on the
-	 * mutexes we unlock.  So, we record the pid of the current thread in
-	 * zone_force_lock, and use that to detect if we're in the parent or
-	 * child here, to decide which unlock logic we need.
-	 */
-	if (isthreaded) {
-		assert(zone_force_lock_pid != -1);
-		if (getpid() == zone_force_lock_pid) {
-			jemalloc_postfork_parent();
-		} else {
-			jemalloc_postfork_child();
-		}
-		zone_force_lock_pid = -1;
-	}
-}
-
-static void
-zone_statistics(malloc_zone_t *zone, malloc_statistics_t *stats) {
-	/* We make no effort to actually fill the values */
-	stats->blocks_in_use = 0;
-	stats->size_in_use = 0;
-	stats->max_size_in_use = 0;
-	stats->size_allocated = 0;
-}
-
-static boolean_t
-zone_locked(malloc_zone_t *zone) {
-	/* Pretend no lock is being held */
-	return false;
-}
-
-static void
-zone_reinit_lock(malloc_zone_t *zone) {
-	/* As of OSX 10.12, this function is only used when force_unlock would
-	 * be used if the zone version were < 9. So just use force_unlock. */
-	zone_force_unlock(zone);
-}
-
-static void
-zone_init(void) {
-	jemalloc_zone.size = zone_size;
-	jemalloc_zone.malloc = zone_malloc;
-	jemalloc_zone.calloc = zone_calloc;
-	jemalloc_zone.valloc = zone_valloc;
-	jemalloc_zone.free = zone_free;
-	jemalloc_zone.realloc = zone_realloc;
-	jemalloc_zone.destroy = zone_destroy;
-	jemalloc_zone.zone_name = "jemalloc_zone";
-	jemalloc_zone.batch_malloc = zone_batch_malloc;
-	jemalloc_zone.batch_free = zone_batch_free;
-	jemalloc_zone.introspect = &jemalloc_zone_introspect;
-	jemalloc_zone.version = 9;
-	jemalloc_zone.memalign = zone_memalign;
-	jemalloc_zone.free_definite_size = zone_free_definite_size;
-	jemalloc_zone.pressure_relief = zone_pressure_relief;
-
-	jemalloc_zone_introspect.enumerator = zone_enumerator;
-	jemalloc_zone_introspect.good_size = zone_good_size;
-	jemalloc_zone_introspect.check = zone_check;
-	jemalloc_zone_introspect.print = zone_print;
-	jemalloc_zone_introspect.log = zone_log;
-	jemalloc_zone_introspect.force_lock = zone_force_lock;
-	jemalloc_zone_introspect.force_unlock = zone_force_unlock;
-	jemalloc_zone_introspect.statistics = zone_statistics;
-	jemalloc_zone_introspect.zone_locked = zone_locked;
-	jemalloc_zone_introspect.enable_discharge_checking = NULL;
-	jemalloc_zone_introspect.disable_discharge_checking = NULL;
-	jemalloc_zone_introspect.discharge = NULL;
-#ifdef __BLOCKS__
-	jemalloc_zone_introspect.enumerate_discharged_pointers = NULL;
-#else
-	jemalloc_zone_introspect.enumerate_unavailable_without_blocks = NULL;
-#endif
-	jemalloc_zone_introspect.reinit_lock = zone_reinit_lock;
-}
-
-static malloc_zone_t *
-zone_default_get(void) {
-	malloc_zone_t **zones = NULL;
-	unsigned int num_zones = 0;
-
-	/*
-	 * On OSX 10.12, malloc_default_zone returns a special zone that is not
-	 * present in the list of registered zones. That zone uses a "lite zone"
-	 * if one is present (apparently enabled when malloc stack logging is
-	 * enabled), or the first registered zone otherwise. In practice this
-	 * means unless malloc stack logging is enabled, the first registered
-	 * zone is the default.  So get the list of zones to get the first one,
-	 * instead of relying on malloc_default_zone.
-	 */
-	if (KERN_SUCCESS != malloc_get_all_zones(0, NULL,
-	    (vm_address_t**)&zones, &num_zones)) {
-		/*
-		 * Reset the value in case the failure happened after it was
-		 * set.
-		 */
-		num_zones = 0;
-	}
-
-	if (num_zones) {
-		return zones[0];
-	}
-
-	return malloc_default_zone();
-}
-
-/* As written, this function can only promote jemalloc_zone. */
-static void
-zone_promote(void) {
-	malloc_zone_t *zone;
-
-	do {
-		/*
-		 * Unregister and reregister the default zone.  On OSX >= 10.6,
-		 * unregistering takes the last registered zone and places it
-		 * at the location of the specified zone.  Unregistering the
-		 * default zone thus makes the last registered one the default.
-		 * On OSX < 10.6, unregistering shifts all registered zones.
-		 * The first registered zone then becomes the default.
-		 */
-		malloc_zone_unregister(default_zone);
-		malloc_zone_register(default_zone);
-
-		/*
-		 * On OSX 10.6, having the default purgeable zone appear before
-		 * the default zone makes some things crash because it thinks it
-		 * owns the default zone allocated pointers.  We thus
-		 * unregister/re-register it in order to ensure it's always
-		 * after the default zone.  On OSX < 10.6, there is no purgeable
-		 * zone, so this does nothing.  On OSX >= 10.6, unregistering
-		 * replaces the purgeable zone with the last registered zone
-		 * above, i.e. the default zone.  Registering it again then puts
-		 * it at the end, obviously after the default zone.
-		 */
-		if (purgeable_zone != NULL) {
-			malloc_zone_unregister(purgeable_zone);
-			malloc_zone_register(purgeable_zone);
-		}
-
-		zone = zone_default_get();
-	} while (zone != &jemalloc_zone);
-}
-
-JEMALLOC_ATTR(constructor)
-void
-zone_register(void) {
-	/*
-	 * If something else replaced the system default zone allocator, don't
-	 * register jemalloc's.
-	 */
-	default_zone = zone_default_get();
-	if (!default_zone->zone_name || strcmp(default_zone->zone_name,
-	    "DefaultMallocZone") != 0) {
-		return;
-	}
-
-	/*
-	 * The default purgeable zone is created lazily by OSX's libc.  It uses
-	 * the default zone when it is created for "small" allocations
-	 * (< 15 KiB), but assumes the default zone is a scalable_zone.  This
-	 * obviously fails when the default zone is the jemalloc zone, so
-	 * malloc_default_purgeable_zone() is called beforehand so that the
-	 * default purgeable zone is created when the default zone is still
-	 * a scalable_zone.  As purgeable zones only exist on >= 10.6, we need
-	 * to check for the existence of malloc_default_purgeable_zone() at
-	 * run time.
-	 */
-	purgeable_zone = (malloc_default_purgeable_zone == NULL) ? NULL :
-	    malloc_default_purgeable_zone();
-
-	/* Register the custom zone.  At this point it won't be the default. */
-	zone_init();
-	malloc_zone_register(&jemalloc_zone);
-
-	/* Promote the custom zone to be default. */
-	zone_promote();
-}