Update to jemalloc 2.2.5

6 files changed, 267 insertions, 71 deletions

diff --git a/deps/jemalloc/include/jemalloc/internal/chunk.h b/deps/jemalloc/include/jemalloc/internal/chunk.h
index a60f0ad74..54b6a3ec8 100644
--- a/deps/jemalloc/include/jemalloc/internal/chunk.h
+++ b/deps/jemalloc/include/jemalloc/internal/chunk.h
@@ -50,7 +50,7 @@ extern size_t		map_bias; /* Number of arena chunk header pages. */
 extern size_t		arena_maxclass; /* Max size class for arenas. */
 
 void	*chunk_alloc(size_t size, bool base, bool *zero);
-void	chunk_dealloc(void *chunk, size_t size);
+void	chunk_dealloc(void *chunk, size_t size, bool unmap);
 bool	chunk_boot(void);
 
 #endif /* JEMALLOC_H_EXTERNS */
diff --git a/deps/jemalloc/include/jemalloc/internal/hash.h b/deps/jemalloc/include/jemalloc/internal/hash.h
index 93905bf8d..8a46ce308 100644
--- a/deps/jemalloc/include/jemalloc/internal/hash.h
+++ b/deps/jemalloc/include/jemalloc/internal/hash.h
@@ -26,7 +26,7 @@ uint64_t	hash(const void *key, size_t len, uint64_t seed);
 JEMALLOC_INLINE uint64_t
 hash(const void *key, size_t len, uint64_t seed)
 {
-	const uint64_t m = 0xc6a4a7935bd1e995;
+	const uint64_t m = 0xc6a4a7935bd1e995LLU;
 	const int r = 47;
 	uint64_t h = seed ^ (len * m);
 	const uint64_t *data = (const uint64_t *)key;
diff --git a/deps/jemalloc/include/jemalloc/internal/jemalloc_internal.h.in b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal.h.in
index 0dd9995cf..a44f0978a 100644
--- a/deps/jemalloc/include/jemalloc/internal/jemalloc_internal.h.in
+++ b/deps/jemalloc/include/jemalloc/internal/jemalloc_internal.h.in
@@ -33,6 +33,8 @@
 #define	JEMALLOC_MANGLE
 #include "../jemalloc@install_suffix@.h"
 
+#include "jemalloc/internal/private_namespace.h"
+
 #if (defined(JEMALLOC_OSATOMIC) || defined(JEMALLOC_OSSPIN))
 #include <libkern/OSAtomic.h>
 #endif
@@ -633,7 +635,11 @@ ipalloc(size_t usize, size_t alignment, bool zero)
 	if (usize <= arena_maxclass && alignment <= PAGE_SIZE)
 		ret = arena_malloc(usize, zero);
 	else {
-		size_t run_size = 0;
+		size_t run_size
+#ifdef JEMALLOC_CC_SILENCE
+		    = 0
+#endif
+		    ;
 
 		/*
 		 * Ideally we would only ever call sa2u() once per aligned
diff --git a/deps/jemalloc/include/jemalloc/internal/private_namespace.h b/deps/jemalloc/include/jemalloc/internal/private_namespace.h
new file mode 100644
index 000000000..d4f5f96d7
--- /dev/null
+++ b/deps/jemalloc/include/jemalloc/internal/private_namespace.h
@@ -0,0 +1,195 @@
+#define	arena_bin_index JEMALLOC_N(arena_bin_index)
+#define	arena_boot JEMALLOC_N(arena_boot)
+#define	arena_dalloc JEMALLOC_N(arena_dalloc)
+#define	arena_dalloc_bin JEMALLOC_N(arena_dalloc_bin)
+#define	arena_dalloc_large JEMALLOC_N(arena_dalloc_large)
+#define	arena_malloc JEMALLOC_N(arena_malloc)
+#define	arena_malloc_large JEMALLOC_N(arena_malloc_large)
+#define	arena_malloc_small JEMALLOC_N(arena_malloc_small)
+#define	arena_new JEMALLOC_N(arena_new)
+#define	arena_palloc JEMALLOC_N(arena_palloc)
+#define	arena_prof_accum JEMALLOC_N(arena_prof_accum)
+#define	arena_prof_ctx_get JEMALLOC_N(arena_prof_ctx_get)
+#define	arena_prof_ctx_set JEMALLOC_N(arena_prof_ctx_set)
+#define	arena_prof_promoted JEMALLOC_N(arena_prof_promoted)
+#define	arena_purge_all JEMALLOC_N(arena_purge_all)
+#define	arena_ralloc JEMALLOC_N(arena_ralloc)
+#define	arena_ralloc_no_move JEMALLOC_N(arena_ralloc_no_move)
+#define	arena_run_regind JEMALLOC_N(arena_run_regind)
+#define	arena_salloc JEMALLOC_N(arena_salloc)
+#define	arena_salloc_demote JEMALLOC_N(arena_salloc_demote)
+#define	arena_stats_merge JEMALLOC_N(arena_stats_merge)
+#define	arena_tcache_fill_small JEMALLOC_N(arena_tcache_fill_small)
+#define	arenas_bin_i_index JEMALLOC_N(arenas_bin_i_index)
+#define	arenas_extend JEMALLOC_N(arenas_extend)
+#define	arenas_lrun_i_index JEMALLOC_N(arenas_lrun_i_index)
+#define	atomic_add_uint32 JEMALLOC_N(atomic_add_uint32)
+#define	atomic_add_uint64 JEMALLOC_N(atomic_add_uint64)
+#define	atomic_sub_uint32 JEMALLOC_N(atomic_sub_uint32)
+#define	atomic_sub_uint64 JEMALLOC_N(atomic_sub_uint64)
+#define	base_alloc JEMALLOC_N(base_alloc)
+#define	base_boot JEMALLOC_N(base_boot)
+#define	base_node_alloc JEMALLOC_N(base_node_alloc)
+#define	base_node_dealloc JEMALLOC_N(base_node_dealloc)
+#define	bitmap_full JEMALLOC_N(bitmap_full)
+#define	bitmap_get JEMALLOC_N(bitmap_get)
+#define	bitmap_info_init JEMALLOC_N(bitmap_info_init)
+#define	bitmap_info_ngroups JEMALLOC_N(bitmap_info_ngroups)
+#define	bitmap_init JEMALLOC_N(bitmap_init)
+#define	bitmap_set JEMALLOC_N(bitmap_set)
+#define	bitmap_sfu JEMALLOC_N(bitmap_sfu)
+#define	bitmap_size JEMALLOC_N(bitmap_size)
+#define	bitmap_unset JEMALLOC_N(bitmap_unset)
+#define	bt_init JEMALLOC_N(bt_init)
+#define	buferror JEMALLOC_N(buferror)
+#define	choose_arena JEMALLOC_N(choose_arena)
+#define	choose_arena_hard JEMALLOC_N(choose_arena_hard)
+#define	chunk_alloc JEMALLOC_N(chunk_alloc)
+#define	chunk_alloc_dss JEMALLOC_N(chunk_alloc_dss)
+#define	chunk_alloc_mmap JEMALLOC_N(chunk_alloc_mmap)
+#define	chunk_alloc_mmap_noreserve JEMALLOC_N(chunk_alloc_mmap_noreserve)
+#define	chunk_alloc_swap JEMALLOC_N(chunk_alloc_swap)
+#define	chunk_boot JEMALLOC_N(chunk_boot)
+#define	chunk_dealloc JEMALLOC_N(chunk_dealloc)
+#define	chunk_dealloc_dss JEMALLOC_N(chunk_dealloc_dss)
+#define	chunk_dealloc_mmap JEMALLOC_N(chunk_dealloc_mmap)
+#define	chunk_dealloc_swap JEMALLOC_N(chunk_dealloc_swap)
+#define	chunk_dss_boot JEMALLOC_N(chunk_dss_boot)
+#define	chunk_in_dss JEMALLOC_N(chunk_in_dss)
+#define	chunk_in_swap JEMALLOC_N(chunk_in_swap)
+#define	chunk_mmap_boot JEMALLOC_N(chunk_mmap_boot)
+#define	chunk_swap_boot JEMALLOC_N(chunk_swap_boot)
+#define	chunk_swap_enable JEMALLOC_N(chunk_swap_enable)
+#define	ckh_bucket_search JEMALLOC_N(ckh_bucket_search)
+#define	ckh_count JEMALLOC_N(ckh_count)
+#define	ckh_delete JEMALLOC_N(ckh_delete)
+#define	ckh_evict_reloc_insert JEMALLOC_N(ckh_evict_reloc_insert)
+#define	ckh_insert JEMALLOC_N(ckh_insert)
+#define	ckh_isearch JEMALLOC_N(ckh_isearch)
+#define	ckh_iter JEMALLOC_N(ckh_iter)
+#define	ckh_new JEMALLOC_N(ckh_new)
+#define	ckh_pointer_hash JEMALLOC_N(ckh_pointer_hash)
+#define	ckh_pointer_keycomp JEMALLOC_N(ckh_pointer_keycomp)
+#define	ckh_rebuild JEMALLOC_N(ckh_rebuild)
+#define	ckh_remove JEMALLOC_N(ckh_remove)
+#define	ckh_search JEMALLOC_N(ckh_search)
+#define	ckh_string_hash JEMALLOC_N(ckh_string_hash)
+#define	ckh_string_keycomp JEMALLOC_N(ckh_string_keycomp)
+#define	ckh_try_bucket_insert JEMALLOC_N(ckh_try_bucket_insert)
+#define	ckh_try_insert JEMALLOC_N(ckh_try_insert)
+#define	create_zone JEMALLOC_N(create_zone)
+#define	ctl_boot JEMALLOC_N(ctl_boot)
+#define	ctl_bymib JEMALLOC_N(ctl_bymib)
+#define	ctl_byname JEMALLOC_N(ctl_byname)
+#define	ctl_nametomib JEMALLOC_N(ctl_nametomib)
+#define	extent_tree_ad_first JEMALLOC_N(extent_tree_ad_first)
+#define	extent_tree_ad_insert JEMALLOC_N(extent_tree_ad_insert)
+#define	extent_tree_ad_iter JEMALLOC_N(extent_tree_ad_iter)
+#define	extent_tree_ad_iter_recurse JEMALLOC_N(extent_tree_ad_iter_recurse)
+#define	extent_tree_ad_iter_start JEMALLOC_N(extent_tree_ad_iter_start)
+#define	extent_tree_ad_last JEMALLOC_N(extent_tree_ad_last)
+#define	extent_tree_ad_new JEMALLOC_N(extent_tree_ad_new)
+#define	extent_tree_ad_next JEMALLOC_N(extent_tree_ad_next)
+#define	extent_tree_ad_nsearch JEMALLOC_N(extent_tree_ad_nsearch)
+#define	extent_tree_ad_prev JEMALLOC_N(extent_tree_ad_prev)
+#define	extent_tree_ad_psearch JEMALLOC_N(extent_tree_ad_psearch)
+#define	extent_tree_ad_remove JEMALLOC_N(extent_tree_ad_remove)
+#define	extent_tree_ad_reverse_iter JEMALLOC_N(extent_tree_ad_reverse_iter)
+#define	extent_tree_ad_reverse_iter_recurse JEMALLOC_N(extent_tree_ad_reverse_iter_recurse)
+#define	extent_tree_ad_reverse_iter_start JEMALLOC_N(extent_tree_ad_reverse_iter_start)
+#define	extent_tree_ad_search JEMALLOC_N(extent_tree_ad_search)
+#define	extent_tree_szad_first JEMALLOC_N(extent_tree_szad_first)
+#define	extent_tree_szad_insert JEMALLOC_N(extent_tree_szad_insert)
+#define	extent_tree_szad_iter JEMALLOC_N(extent_tree_szad_iter)
+#define	extent_tree_szad_iter_recurse JEMALLOC_N(extent_tree_szad_iter_recurse)
+#define	extent_tree_szad_iter_start JEMALLOC_N(extent_tree_szad_iter_start)
+#define	extent_tree_szad_last JEMALLOC_N(extent_tree_szad_last)
+#define	extent_tree_szad_new JEMALLOC_N(extent_tree_szad_new)
+#define	extent_tree_szad_next JEMALLOC_N(extent_tree_szad_next)
+#define	extent_tree_szad_nsearch JEMALLOC_N(extent_tree_szad_nsearch)
+#define	extent_tree_szad_prev JEMALLOC_N(extent_tree_szad_prev)
+#define	extent_tree_szad_psearch JEMALLOC_N(extent_tree_szad_psearch)
+#define	extent_tree_szad_remove JEMALLOC_N(extent_tree_szad_remove)
+#define	extent_tree_szad_reverse_iter JEMALLOC_N(extent_tree_szad_reverse_iter)
+#define	extent_tree_szad_reverse_iter_recurse JEMALLOC_N(extent_tree_szad_reverse_iter_recurse)
+#define	extent_tree_szad_reverse_iter_start JEMALLOC_N(extent_tree_szad_reverse_iter_start)
+#define	extent_tree_szad_search JEMALLOC_N(extent_tree_szad_search)
+#define	hash JEMALLOC_N(hash)
+#define	huge_boot JEMALLOC_N(huge_boot)
+#define	huge_dalloc JEMALLOC_N(huge_dalloc)
+#define	huge_malloc JEMALLOC_N(huge_malloc)
+#define	huge_palloc JEMALLOC_N(huge_palloc)
+#define	huge_prof_ctx_get JEMALLOC_N(huge_prof_ctx_get)
+#define	huge_prof_ctx_set JEMALLOC_N(huge_prof_ctx_set)
+#define	huge_ralloc JEMALLOC_N(huge_ralloc)
+#define	huge_ralloc_no_move JEMALLOC_N(huge_ralloc_no_move)
+#define	huge_salloc JEMALLOC_N(huge_salloc)
+#define	iallocm JEMALLOC_N(iallocm)
+#define	icalloc JEMALLOC_N(icalloc)
+#define	idalloc JEMALLOC_N(idalloc)
+#define	imalloc JEMALLOC_N(imalloc)
+#define	ipalloc JEMALLOC_N(ipalloc)
+#define	iralloc JEMALLOC_N(iralloc)
+#define	isalloc JEMALLOC_N(isalloc)
+#define	ivsalloc JEMALLOC_N(ivsalloc)
+#define	jemalloc_darwin_init JEMALLOC_N(jemalloc_darwin_init)
+#define	jemalloc_postfork JEMALLOC_N(jemalloc_postfork)
+#define	jemalloc_prefork JEMALLOC_N(jemalloc_prefork)
+#define	malloc_cprintf JEMALLOC_N(malloc_cprintf)
+#define	malloc_mutex_destroy JEMALLOC_N(malloc_mutex_destroy)
+#define	malloc_mutex_init JEMALLOC_N(malloc_mutex_init)
+#define	malloc_mutex_lock JEMALLOC_N(malloc_mutex_lock)
+#define	malloc_mutex_trylock JEMALLOC_N(malloc_mutex_trylock)
+#define	malloc_mutex_unlock JEMALLOC_N(malloc_mutex_unlock)
+#define	malloc_printf JEMALLOC_N(malloc_printf)
+#define	malloc_write JEMALLOC_N(malloc_write)
+#define	mb_write JEMALLOC_N(mb_write)
+#define	pow2_ceil JEMALLOC_N(pow2_ceil)
+#define	prof_backtrace JEMALLOC_N(prof_backtrace)
+#define	prof_boot0 JEMALLOC_N(prof_boot0)
+#define	prof_boot1 JEMALLOC_N(prof_boot1)
+#define	prof_boot2 JEMALLOC_N(prof_boot2)
+#define	prof_ctx_get JEMALLOC_N(prof_ctx_get)
+#define	prof_ctx_set JEMALLOC_N(prof_ctx_set)
+#define	prof_free JEMALLOC_N(prof_free)
+#define	prof_gdump JEMALLOC_N(prof_gdump)
+#define	prof_idump JEMALLOC_N(prof_idump)
+#define	prof_lookup JEMALLOC_N(prof_lookup)
+#define	prof_malloc JEMALLOC_N(prof_malloc)
+#define	prof_mdump JEMALLOC_N(prof_mdump)
+#define	prof_realloc JEMALLOC_N(prof_realloc)
+#define	prof_sample_accum_update JEMALLOC_N(prof_sample_accum_update)
+#define	prof_sample_threshold_update JEMALLOC_N(prof_sample_threshold_update)
+#define	prof_tdata_init JEMALLOC_N(prof_tdata_init)
+#define	pthread_create JEMALLOC_N(pthread_create)
+#define	rtree_get JEMALLOC_N(rtree_get)
+#define	rtree_get_locked JEMALLOC_N(rtree_get_locked)
+#define	rtree_new JEMALLOC_N(rtree_new)
+#define	rtree_set JEMALLOC_N(rtree_set)
+#define	s2u JEMALLOC_N(s2u)
+#define	sa2u JEMALLOC_N(sa2u)
+#define	stats_arenas_i_bins_j_index JEMALLOC_N(stats_arenas_i_bins_j_index)
+#define	stats_arenas_i_index JEMALLOC_N(stats_arenas_i_index)
+#define	stats_arenas_i_lruns_j_index JEMALLOC_N(stats_arenas_i_lruns_j_index)
+#define	stats_cactive_add JEMALLOC_N(stats_cactive_add)
+#define	stats_cactive_get JEMALLOC_N(stats_cactive_get)
+#define	stats_cactive_sub JEMALLOC_N(stats_cactive_sub)
+#define	stats_print JEMALLOC_N(stats_print)
+#define	szone2ozone JEMALLOC_N(szone2ozone)
+#define	tcache_alloc_easy JEMALLOC_N(tcache_alloc_easy)
+#define	tcache_alloc_large JEMALLOC_N(tcache_alloc_large)
+#define	tcache_alloc_small JEMALLOC_N(tcache_alloc_small)
+#define	tcache_alloc_small_hard JEMALLOC_N(tcache_alloc_small_hard)
+#define	tcache_bin_flush_large JEMALLOC_N(tcache_bin_flush_large)
+#define	tcache_bin_flush_small JEMALLOC_N(tcache_bin_flush_small)
+#define	tcache_boot JEMALLOC_N(tcache_boot)
+#define	tcache_create JEMALLOC_N(tcache_create)
+#define	tcache_dalloc_large JEMALLOC_N(tcache_dalloc_large)
+#define	tcache_dalloc_small JEMALLOC_N(tcache_dalloc_small)
+#define	tcache_destroy JEMALLOC_N(tcache_destroy)
+#define	tcache_event JEMALLOC_N(tcache_event)
+#define	tcache_get JEMALLOC_N(tcache_get)
+#define	tcache_stats_merge JEMALLOC_N(tcache_stats_merge)
+#define	thread_allocated_get JEMALLOC_N(thread_allocated_get)
+#define	thread_allocated_get_hard JEMALLOC_N(thread_allocated_get_hard)
+#define	u2s JEMALLOC_N(u2s)
diff --git a/deps/jemalloc/include/jemalloc/internal/prof.h b/deps/jemalloc/include/jemalloc/internal/prof.h
index f94387350..e9064ba6e 100644
--- a/deps/jemalloc/include/jemalloc/internal/prof.h
+++ b/deps/jemalloc/include/jemalloc/internal/prof.h
@@ -227,9 +227,60 @@ bool	prof_boot2(void);
 /******************************************************************************/
 #ifdef JEMALLOC_H_INLINES
 
+#define	PROF_ALLOC_PREP(nignore, size, ret) do {			\
+	prof_tdata_t *prof_tdata;					\
+	prof_bt_t bt;							\
+									\
+	assert(size == s2u(size));					\
+									\
+	prof_tdata = PROF_TCACHE_GET();					\
+	if (prof_tdata == NULL) {					\
+		prof_tdata = prof_tdata_init();				\
+		if (prof_tdata == NULL) {				\
+			ret = NULL;					\
+			break;						\
+		}							\
+	}								\
+									\
+	if (opt_prof_active == false) {					\
+		/* Sampling is currently inactive, so avoid sampling. */\
+		ret = (prof_thr_cnt_t *)(uintptr_t)1U;			\
+	} else if (opt_lg_prof_sample == 0) {				\
+		/* Don't bother with sampling logic, since sampling   */\
+		/* interval is 1.                                     */\
+		bt_init(&bt, prof_tdata->vec);				\
+		prof_backtrace(&bt, nignore, prof_bt_max);		\
+		ret = prof_lookup(&bt);					\
+	} else {							\
+		if (prof_tdata->threshold == 0) {			\
+			/* Initialize.  Seed the prng differently for */\
+			/* each thread.                               */\
+			prof_tdata->prn_state =				\
+			    (uint64_t)(uintptr_t)&size;			\
+			prof_sample_threshold_update(prof_tdata);	\
+		}							\
+									\
+		/* Determine whether to capture a backtrace based on  */\
+		/* whether size is enough for prof_accum to reach     */\
+		/* prof_tdata->threshold.  However, delay updating    */\
+		/* these variables until prof_{m,re}alloc(), because  */\
+		/* we don't know for sure that the allocation will    */\
+		/* succeed.                                           */\
+		/*                                                    */\
+		/* Use subtraction rather than addition to avoid      */\
+		/* potential integer overflow.                        */\
+		if (size >= prof_tdata->threshold -			\
+		    prof_tdata->accum) {				\
+			bt_init(&bt, prof_tdata->vec);			\
+			prof_backtrace(&bt, nignore, prof_bt_max);	\
+			ret = prof_lookup(&bt);				\
+		} else							\
+			ret = (prof_thr_cnt_t *)(uintptr_t)1U;		\
+	}								\
+} while (0)
+
 #ifndef JEMALLOC_ENABLE_INLINE
 void	prof_sample_threshold_update(prof_tdata_t *prof_tdata);
-prof_thr_cnt_t	*prof_alloc_prep(size_t size);
 prof_ctx_t	*prof_ctx_get(const void *ptr);
 void	prof_ctx_set(const void *ptr, prof_ctx_t *ctx);
 bool	prof_sample_accum_update(size_t size);
@@ -272,71 +323,6 @@ prof_sample_threshold_update(prof_tdata_t *prof_tdata)
 	    + (uint64_t)1U;
 }
 
-JEMALLOC_INLINE prof_thr_cnt_t *
-prof_alloc_prep(size_t size)
-{
-#ifdef JEMALLOC_ENABLE_INLINE
-   /* This function does not have its own stack frame, because it is inlined. */
-#  define NIGNORE 1
-#else
-#  define NIGNORE 2
-#endif
-	prof_thr_cnt_t *ret;
-	prof_tdata_t *prof_tdata;
-	prof_bt_t bt;
-
-	assert(size == s2u(size));
-
-	prof_tdata = PROF_TCACHE_GET();
-	if (prof_tdata == NULL) {
-		prof_tdata = prof_tdata_init();
-		if (prof_tdata == NULL)
-			return (NULL);
-	}
-
-	if (opt_prof_active == false) {
-		/* Sampling is currently inactive, so avoid sampling. */
-		ret = (prof_thr_cnt_t *)(uintptr_t)1U;
-	} else if (opt_lg_prof_sample == 0) {
-		/*
-		 * Don't bother with sampling logic, since sampling interval is
-		 * 1.
-		 */
-		bt_init(&bt, prof_tdata->vec);
-		prof_backtrace(&bt, NIGNORE, prof_bt_max);
-		ret = prof_lookup(&bt);
-	} else {
-		if (prof_tdata->threshold == 0) {
-			/*
-			 * Initialize.  Seed the prng differently for each
-			 * thread.
-			 */
-			prof_tdata->prn_state = (uint64_t)(uintptr_t)&size;
-			prof_sample_threshold_update(prof_tdata);
-		}
-
-		/*
-		 * Determine whether to capture a backtrace based on whether
-		 * size is enough for prof_accum to reach
-		 * prof_tdata->threshold.  However, delay updating these
-		 * variables until prof_{m,re}alloc(), because we don't know
-		 * for sure that the allocation will succeed.
-		 *
-		 * Use subtraction rather than addition to avoid potential
-		 * integer overflow.
-		 */
-		if (size >= prof_tdata->threshold - prof_tdata->accum) {
-			bt_init(&bt, prof_tdata->vec);
-			prof_backtrace(&bt, NIGNORE, prof_bt_max);
-			ret = prof_lookup(&bt);
-		} else
-			ret = (prof_thr_cnt_t *)(uintptr_t)1U;
-	}
-
-	return (ret);
-#undef NIGNORE
-}
-
 JEMALLOC_INLINE prof_ctx_t *
 prof_ctx_get(const void *ptr)
 {
@@ -415,7 +401,7 @@ prof_malloc(const void *ptr, size_t size, prof_thr_cnt_t *cnt)
 			 * always possible to tell in advance how large an
 			 * object's usable size will be, so there should never
 			 * be a difference between the size passed to
-			 * prof_alloc_prep() and prof_malloc().
+			 * PROF_ALLOC_PREP() and prof_malloc().
 			 */
 			assert((uintptr_t)cnt == (uintptr_t)1U);
 		}
@@ -459,7 +445,7 @@ prof_realloc(const void *ptr, size_t size, prof_thr_cnt_t *cnt,
 			if (prof_sample_accum_update(size)) {
 				/*
 				 * Don't sample.  The size passed to
-				 * prof_alloc_prep() was larger than what
+				 * PROF_ALLOC_PREP() was larger than what
 				 * actually got allocated, so a backtrace was
 				 * captured for this allocation, even though
 				 * its actual size was insufficient to cross
diff --git a/deps/jemalloc/include/jemalloc/jemalloc_defs.h.in b/deps/jemalloc/include/jemalloc/jemalloc_defs.h.in
index d8c81d7cb..9ac7e1c20 100644
--- a/deps/jemalloc/include/jemalloc/jemalloc_defs.h.in
+++ b/deps/jemalloc/include/jemalloc/jemalloc_defs.h.in
@@ -19,6 +19,15 @@
 #endif
 
 /*
+ * 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
+#undef JEMALLOC_N
+
+/*
  * Hyper-threaded CPUs may need a special instruction inside spin loops in
  * order to yield to another virtual CPU.
  */