Merge ^/head r320573 through r320970.

svn path=/projects/clang500-import/; revision=320971
2017-07-13 22:01:38 +00:00 · 2017-07-13 22:01:38 +00:00 · d2043ca373 · 2020-12-20 02:59:44 +00:00
commit d2043ca373
parent c439438675 27c8e6b81e
836 changed files with 40016 additions and 14815 deletions
--- a/Makefile.inc1
+++ b/Makefile.inc1
@ -655,7 +655,8 @@ LIBCOMPAT= SOFT
 # when the ABI breaks though that we want to force rebuilding WORLDTMP
 # to get updated host tools.
 .if ${MK_META_MODE} == "yes" && defined(NO_CLEAN) && \
-    !defined(NO_META_IGNORE_HOST) && !defined(NO_META_IGNORE_HOST_HEADERS)
+    !defined(NO_META_IGNORE_HOST) && !defined(NO_META_IGNORE_HOST_HEADERS) && \
+    !make(showconfig)
 # r318736 - ino64 major ABI breakage
 META_MODE_BAD_ABI_VERS+=	1200031

@ -761,7 +762,15 @@ _worldtmp: .PHONY
 .endif
 .else
 	rm -rf ${WORLDTMP}/legacy/usr/include
-.endif
+.if ${USING_SYSTEM_COMPILER} == "yes"
+.for cc in cc c++
+	if [ -x ${WORLDTMP}/usr/bin/${cc} ]; then \
+		inum=$$(stat -f %i ${WORLDTMP}/usr/bin/${cc}); \
+		find ${WORLDTMP}/usr/bin -inum $${inum} -delete; \
+	fi
+.endfor
+.endif	# ${USING_SYSTEM_COMPILER} == "yes"
+.endif	# !defined(NO_CLEAN)

 # Our current approach to dependency tracking cannot cope with certain source
 # tree changes, particularly with respect to removing source files and
@ -1641,8 +1650,8 @@ create-kernel-packages-flavor${flavor:C,^""$,${_default_flavor},}: _pkgbootstrap
 .for _kernel in ${BUILDKERNELS:[2..-1]}
 .if exists(${KSTAGEDIR}/kernel.${_kernel}.meta)
 .for flavor in "" -debug
-create-kernel-packages: create-kernel-packages-extra-flavor${flavor:C,^""$,${_default_flavor},}
-create-kernel-packages-extra-flavor${flavor:C,^""$,${_default_flavor},}: _pkgbootstrap .PHONY
+create-kernel-packages: create-kernel-packages-extra-flavor${flavor:C,^""$,${_default_flavor},}-${_kernel}
+create-kernel-packages-extra-flavor${flavor:C,^""$,${_default_flavor},}-${_kernel}: _pkgbootstrap .PHONY
 	@cd ${KSTAGEDIR}/kernel.${_kernel} ; \
 	awk -f ${SRCDIR}/release/scripts/mtree-to-plist.awk \
 		-v kernel=yes -v _kernconf=${_kernel} \
--- a/bin/Makefile
+++ b/bin/Makefile
@ -47,8 +47,6 @@ SUBDIR.${MK_TESTS}+=	tests

 .include <bsd.arch.inc.mk>

-SUBDIR:=	${SUBDIR:O}
-
 SUBDIR_PARALLEL=

 .include <bsd.subdir.mk>
--- a/bin/ed/main.c
+++ b/bin/ed/main.c
@ -350,7 +350,8 @@ next_addr(void)
 				ibufp++;
 				addr_cnt++;
 				second_addr = (c == ';') ? current_addr : 1;
-				addr = addr_last;
+				if ((addr = next_addr()) < 0)
+					addr = addr_last;
 				break;
 			}
 			/* FALLTHROUGH */
@ -809,7 +810,7 @@ exec_command(void)
 		if ((addr = write_file(*fnp ? fnp : old_filename,
 		    (c == 'W') ? "a" : "w", first_addr, second_addr)) < 0)
 			return ERR;
-		else if (addr == addr_last)
+		else if (addr == addr_last && *fnp != '!')
 			modified = 0;
 		else if (modified && !scripted && n == 'q')
 			gflag = EMOD;
--- a/bin/rcp/rcp.1
+++ b/bin/rcp/rcp.1
@ -29,7 +29,7 @@
 .\"	@(#)rcp.1	8.1 (Berkeley) 5/31/93
 .\" $FreeBSD$
 .\"
-.Dd October 16, 2002
+.Dd July 3, 2017
 .Dt RCP 1
 .Os
 .Sh NAME
@ -43,6 +43,15 @@
 .Op Fl 46pr
 .Ar
 .Ar directory
+.Sh DEPRECATION NOTICE
+.Nm
+is deprecated and will be removed from future versions of the
+.Fx
+base system.
+If
+.Nm
+is still required, it can be installed from ports or packages
+(net/bsdrcmds).
 .Sh DESCRIPTION
 The
 .Nm
--- a/contrib/ipfilter/man/ippool.8
+++ b/contrib/ipfilter/man/ippool.8
@ -18,7 +18,7 @@ ippool \- user interface to the IPFilter pools
 -F [-dv] [-o <role>] [-t <type>]
 .br
 .B ippool
-l [-dv] [-m <name>] [-t <type>]
+-l [-dv] [-m <name>] [-t <type>] [-o <role>] [-M <core>] [-N <namelist>]
 .br
 .B ippool
 -r [-dnv] [-m <name>] [-o <role>] [-t <type>] -i <ipaddr>[/<netmask>]
--- a/contrib/ipfilter/tools/ippool.c
+++ b/contrib/ipfilter/tools/ippool.c
@ -79,7 +79,7 @@ usage(prog)
 	fprintf(stderr, "\t-A [-dnv] [-m <name>] [-o <role>] [-S <seed>] [-t <type>]\n");
 	fprintf(stderr, "\t-f <file> [-dnuv]\n");
 	fprintf(stderr, "\t-F [-dv] [-o <role>] [-t <type>]\n");
-	fprintf(stderr, "\t-l [-dv] [-m <name>] [-t <type>]\n");
+	fprintf(stderr, "\t-l [-dv] [-m <name>] [-t <type>] [-o <role>] [-M <core>] [-N <namelist>]\n");
 	fprintf(stderr, "\t-r [-dnv] [-m <name>] [-o <role>] [-t type] -i <ipaddr>[/netmask]\n");
 	fprintf(stderr, "\t-R [-dnv] [-m <name>] [-o <role>] [-t <type>]\n");
 	fprintf(stderr, "\t-s [-dtv] [-M <core>] [-N <namelist>]\n");
--- a/contrib/jemalloc/ChangeLog
+++ b/contrib/jemalloc/ChangeLog
@ -4,6 +4,41 @@ brevity.  Much more detail can be found in the git revision history:

    https://github.com/jemalloc/jemalloc

+* 5.0.1 (July 1, 2017)
+
+  This bugfix release fixes several issues, most of which are obscure enough
+  that typical applications are not impacted.
+
+  Bug fixes:
+  - Update decay->nunpurged before purging, in order to avoid potential update
+    races and subsequent incorrect purging volume.  (@interwq)
+  - Only abort on dlsym(3) error if the failure impacts an enabled feature (lazy
+    locking and/or background threads).  This mitigates an initialization
+    failure bug for which we still do not have a clear reproduction test case.
+    (@interwq)
+  - Modify tsd management so that it neither crashes nor leaks if a thread's
+    only allocation activity is to call free() after TLS destructors have been
+    executed.  This behavior was observed when operating with GNU libc, and is
+    unlikely to be an issue with other libc implementations.  (@interwq)
+  - Mask signals during background thread creation.  This prevents signals from
+    being inadvertently delivered to background threads.  (@jasone,
+    @davidtgoldblatt, @interwq)
+  - Avoid inactivity checks within background threads, in order to prevent
+    recursive mutex acquisition.  (@interwq)
+  - Fix extent_grow_retained() to use the specified hooks when the
+    arena.<i>.extent_hooks mallctl is used to override the default hooks.
+    (@interwq)
+  - Add missing reentrancy support for custom extent hooks which allocate.
+    (@interwq)
+  - Post-fork(2), re-initialize the list of tcaches associated with each arena
+    to contain no tcaches except the forking thread's.  (@interwq)
+  - Add missing post-fork(2) mutex reinitialization for extent_grow_mtx.  This
+    fixes potential deadlocks after fork(2).  (@interwq)
+  - Enforce minimum autoconf version (currently 2.68), since 2.63 is known to
+    generate corrupt configure scripts.  (@jasone)
+  - Ensure that the configured page size (--with-lg-page) is no larger than the
+    configured huge page size (--with-lg-hugepage).  (@jasone)
+
 * 5.0.0 (June 13, 2017)

  Unlike all previous jemalloc releases, this release does not use naturally
--- a/contrib/jemalloc/VERSION
+++ b/contrib/jemalloc/VERSION
@ -1 +1 @@
-5.0.0-4-g84f6c2cae0fb1399377ef6aea9368444c4987cc6
+5.0.1-0-g896ed3a8b3f41998d4fb4d625d30ac63ef2d51fb
--- a/contrib/jemalloc/doc/jemalloc.3
+++ b/contrib/jemalloc/doc/jemalloc.3
@ -2,12 +2,12 @@
 .\"     Title: JEMALLOC
 .\"    Author: Jason Evans
 .\" Generator: DocBook XSL Stylesheets v1.76.1 <http://docbook.sf.net/>
-.\"      Date: 06/29/2017
+.\"      Date: 07/01/2017
 .\"    Manual: User Manual
-.\"    Source: jemalloc 5.0.0-4-g84f6c2cae0fb1399377ef6aea9368444c4987cc6
+.\"    Source: jemalloc 5.0.1-0-g896ed3a8b3f41998d4fb4d625d30ac63ef2d51fb
 .\"  Language: English
 .\"
-.TH "JEMALLOC" "3" "06/29/2017" "jemalloc 5.0.0-4-g84f6c2cae0fb" "User Manual"
+.TH "JEMALLOC" "3" "07/01/2017" "jemalloc 5.0.1-0-g896ed3a8b3f4" "User Manual"
 .\" -----------------------------------------------------------------
 .\" * Define some portability stuff
 .\" -----------------------------------------------------------------
@ -31,7 +31,7 @@
 jemalloc \- general purpose memory allocation functions
 .SH "LIBRARY"
 .PP
-This manual describes jemalloc 5\&.0\&.0\-4\-g84f6c2cae0fb1399377ef6aea9368444c4987cc6\&. More information can be found at the
+This manual describes jemalloc 5\&.0\&.1\-0\-g896ed3a8b3f41998d4fb4d625d30ac63ef2d51fb\&. More information can be found at the
 \m[blue]\fBjemalloc website\fR\m[]\&\s-2\u[1]\d\s+2\&.
 .PP
 The following configuration options are enabled in libc\*(Aqs built\-in jemalloc:
--- a/contrib/jemalloc/include/jemalloc/internal/arena_externs.h
+++ b/contrib/jemalloc/include/jemalloc/internal/arena_externs.h
@ -90,6 +90,7 @@ void arena_prefork3(tsdn_t *tsdn, arena_t *arena);
 void arena_prefork4(tsdn_t *tsdn, arena_t *arena);
 void arena_prefork5(tsdn_t *tsdn, arena_t *arena);
 void arena_prefork6(tsdn_t *tsdn, arena_t *arena);
+void arena_prefork7(tsdn_t *tsdn, arena_t *arena);
 void arena_postfork_parent(tsdn_t *tsdn, arena_t *arena);
 void arena_postfork_child(tsdn_t *tsdn, arena_t *arena);

--- a/contrib/jemalloc/include/jemalloc/internal/background_thread_inlines.h
+++ b/contrib/jemalloc/include/jemalloc/internal/background_thread_inlines.h
@ -41,8 +41,9 @@ background_thread_indefinite_sleep(background_thread_info_t *info) {
 }

 JEMALLOC_ALWAYS_INLINE void
-arena_background_thread_inactivity_check(tsdn_t *tsdn, arena_t *arena) {
-	if (!background_thread_enabled()) {
+arena_background_thread_inactivity_check(tsdn_t *tsdn, arena_t *arena,
+    bool is_background_thread) {
+	if (!background_thread_enabled() || is_background_thread) {
 		return;
 	}
 	background_thread_info_t *info =
--- a/contrib/jemalloc/include/jemalloc/internal/base_externs.h
+++ b/contrib/jemalloc/include/jemalloc/internal/base_externs.h
@ -3,7 +3,7 @@

 base_t *b0get(void);
 base_t *base_new(tsdn_t *tsdn, unsigned ind, extent_hooks_t *extent_hooks);
-void base_delete(base_t *base);
+void base_delete(tsdn_t *tsdn, base_t *base);
 extent_hooks_t *base_extent_hooks_get(base_t *base);
 extent_hooks_t *base_extent_hooks_set(base_t *base,
    extent_hooks_t *extent_hooks);
--- a/contrib/jemalloc/include/jemalloc/internal/ctl.h
+++ b/contrib/jemalloc/include/jemalloc/internal/ctl.h
@ -91,8 +91,7 @@ typedef struct ctl_arenas_s {

 int ctl_byname(tsd_t *tsd, const char *name, void *oldp, size_t *oldlenp,
    void *newp, size_t newlen);
-int ctl_nametomib(tsdn_t *tsdn, const char *name, size_t *mibp,
-    size_t *miblenp);
+int ctl_nametomib(tsd_t *tsd, const char *name, size_t *mibp, size_t *miblenp);

 int ctl_bymib(tsd_t *tsd, const size_t *mib, size_t miblen, void *oldp,
    size_t *oldlenp, void *newp, size_t newlen);
--- a/contrib/jemalloc/include/jemalloc/internal/jemalloc_internal_decls.h
+++ b/contrib/jemalloc/include/jemalloc/internal/jemalloc_internal_decls.h
@ -25,6 +25,7 @@
 #    include <sys/uio.h>
 #  endif
 #  include <pthread.h>
+#  include <signal.h>
 #  ifdef JEMALLOC_OS_UNFAIR_LOCK
 #    include <os/lock.h>
 #  endif
--- a/contrib/jemalloc/include/jemalloc/internal/jemalloc_internal_defs.h
+++ b/contrib/jemalloc/include/jemalloc/internal/jemalloc_internal_defs.h
@ -99,6 +99,9 @@
 /* Defined if pthread_atfork(3) is available. */
 #define JEMALLOC_HAVE_PTHREAD_ATFORK 

+/* Defined if pthread_setname_np(3) is available. */
+/* #undef JEMALLOC_HAVE_PTHREAD_SETNAME_NP */
+
 /*
 * Defined if clock_gettime(CLOCK_MONOTONIC_COARSE, ...) is available.
 */
--- a/contrib/jemalloc/include/jemalloc/internal/jemalloc_internal_inlines_a.h
+++ b/contrib/jemalloc/include/jemalloc/internal/jemalloc_internal_inlines_a.h
@ -146,7 +146,10 @@ tcache_get(tsd_t *tsd) {
 }

 static inline void
-pre_reentrancy(tsd_t *tsd) {
+pre_reentrancy(tsd_t *tsd, arena_t *arena) {
+	/* arena is the current context.  Reentry from a0 is not allowed. */
+	assert(arena != arena_get(tsd_tsdn(tsd), 0, false));
+
 	bool fast = tsd_fast(tsd);
 	++*tsd_reentrancy_levelp_get(tsd);
 	if (fast) {
--- a/contrib/jemalloc/include/jemalloc/internal/private_namespace.h
+++ b/contrib/jemalloc/include/jemalloc/internal/private_namespace.h
@ -69,6 +69,7 @@
 #define arena_prefork4 JEMALLOC_N(arena_prefork4)
 #define arena_prefork5 JEMALLOC_N(arena_prefork5)
 #define arena_prefork6 JEMALLOC_N(arena_prefork6)
+#define arena_prefork7 JEMALLOC_N(arena_prefork7)
 #define arena_prof_promote JEMALLOC_N(arena_prof_promote)
 #define arena_ralloc JEMALLOC_N(arena_ralloc)
 #define arena_ralloc_no_move JEMALLOC_N(arena_ralloc_no_move)
--- a/contrib/jemalloc/include/jemalloc/internal/tcache_externs.h
+++ b/contrib/jemalloc/include/jemalloc/internal/tcache_externs.h
@ -48,7 +48,7 @@ void tcache_arena_associate(tsdn_t *tsdn, tcache_t *tcache, arena_t *arena);
 void tcache_prefork(tsdn_t *tsdn);
 void tcache_postfork_parent(tsdn_t *tsdn);
 void tcache_postfork_child(tsdn_t *tsdn);
-void tcache_flush(void);
+void tcache_flush(tsd_t *tsd);
 bool tsd_tcache_data_init(tsd_t *tsd);
 bool tsd_tcache_enabled_data_init(tsd_t *tsd);

--- a/contrib/jemalloc/include/jemalloc/internal/tsd.h
+++ b/contrib/jemalloc/include/jemalloc/internal/tsd.h
@ -99,9 +99,10 @@ enum {
 	tsd_state_nominal_slow = 1, /* Initialized but on slow path. */
 	/* the above 2 nominal states should be lower values. */
 	tsd_state_nominal_max = 1, /* used for comparison only. */
-	tsd_state_purgatory = 2,
-	tsd_state_reincarnated = 3,
-	tsd_state_uninitialized = 4
+	tsd_state_minimal_initialized = 2,
+	tsd_state_purgatory = 3,
+	tsd_state_reincarnated = 4,
+	tsd_state_uninitialized = 5
 };

 /* Manually limit tsd_state_t to a single byte. */
@ -190,7 +191,8 @@ JEMALLOC_ALWAYS_INLINE t *						\
 tsd_##n##p_get(tsd_t *tsd) {						\
 	assert(tsd->state == tsd_state_nominal ||			\
 	    tsd->state == tsd_state_nominal_slow ||			\
-	    tsd->state == tsd_state_reincarnated);			\
+	    tsd->state == tsd_state_reincarnated ||			\
+	    tsd->state == tsd_state_minimal_initialized);		\
 	return tsd_##n##p_get_unsafe(tsd);				\
 }
 MALLOC_TSD
@ -225,7 +227,8 @@ MALLOC_TSD
 #define O(n, t, nt)							\
 JEMALLOC_ALWAYS_INLINE void						\
 tsd_##n##_set(tsd_t *tsd, t val) {					\
-	assert(tsd->state != tsd_state_reincarnated);			\
+	assert(tsd->state != tsd_state_reincarnated &&			\
+	    tsd->state != tsd_state_minimal_initialized);		\
 	*tsd_##n##p_get(tsd) = val;					\
 }
 MALLOC_TSD
@ -248,7 +251,7 @@ tsd_fast(tsd_t *tsd) {
 }

 JEMALLOC_ALWAYS_INLINE tsd_t *
-tsd_fetch_impl(bool init, bool internal) {
+tsd_fetch_impl(bool init, bool minimal) {
 	tsd_t *tsd = tsd_get(init);

 	if (!init && tsd_get_allocates() && tsd == NULL) {
@ -257,7 +260,7 @@ tsd_fetch_impl(bool init, bool internal) {
 	assert(tsd != NULL);

 	if (unlikely(tsd->state != tsd_state_nominal)) {
-		return tsd_fetch_slow(tsd, internal);
+		return tsd_fetch_slow(tsd, minimal);
 	}
 	assert(tsd_fast(tsd));
 	tsd_assert_fast(tsd);
@ -265,9 +268,20 @@ tsd_fetch_impl(bool init, bool internal) {
 	return tsd;
 }

+/* Get a minimal TSD that requires no cleanup.  See comments in free(). */
+JEMALLOC_ALWAYS_INLINE tsd_t *
+tsd_fetch_min(void) {
+	return tsd_fetch_impl(true, true);
+}
+
+/* For internal background threads use only. */
 JEMALLOC_ALWAYS_INLINE tsd_t *
 tsd_internal_fetch(void) {
-	return tsd_fetch_impl(true, true);
+	tsd_t *tsd = tsd_fetch_min();
+	/* Use reincarnated state to prevent full initialization. */
+	tsd->state = tsd_state_reincarnated;
+
+	return tsd;
 }

 JEMALLOC_ALWAYS_INLINE tsd_t *
--- a/contrib/jemalloc/include/jemalloc/jemalloc.h
+++ b/contrib/jemalloc/include/jemalloc/jemalloc.h
@ -87,12 +87,12 @@ extern "C" {
 #include <limits.h>
 #include <strings.h>

-#define JEMALLOC_VERSION "5.0.0-4-g84f6c2cae0fb1399377ef6aea9368444c4987cc6"
+#define JEMALLOC_VERSION "5.0.1-0-g896ed3a8b3f41998d4fb4d625d30ac63ef2d51fb"
 #define JEMALLOC_VERSION_MAJOR 5
 #define JEMALLOC_VERSION_MINOR 0
-#define JEMALLOC_VERSION_BUGFIX 0
-#define JEMALLOC_VERSION_NREV 4
-#define JEMALLOC_VERSION_GID "84f6c2cae0fb1399377ef6aea9368444c4987cc6"
+#define JEMALLOC_VERSION_BUGFIX 1
+#define JEMALLOC_VERSION_NREV 0
+#define JEMALLOC_VERSION_GID "896ed3a8b3f41998d4fb4d625d30ac63ef2d51fb"

 #define MALLOCX_LG_ALIGN(la)	((int)(la))
 #if LG_SIZEOF_PTR == 2
--- a/contrib/jemalloc/src/arena.c
+++ b/contrib/jemalloc/src/arena.c
@ -61,7 +61,8 @@ const uint64_t h_steps[SMOOTHSTEP_NSTEPS] = {
 */

 static void arena_decay_to_limit(tsdn_t *tsdn, arena_t *arena,
-    arena_decay_t *decay, extents_t *extents, bool all, size_t npages_limit);
+    arena_decay_t *decay, extents_t *extents, bool all, size_t npages_limit,
+    bool is_background_thread);
 static bool arena_decay_dirty(tsdn_t *tsdn, arena_t *arena,
    bool is_background_thread, bool all);
 static void arena_dalloc_bin_slab(tsdn_t *tsdn, arena_t *arena, extent_t *slab,
@ -378,7 +379,7 @@ arena_extents_dirty_dalloc(tsdn_t *tsdn, arena_t *arena,
 	if (arena_dirty_decay_ms_get(arena) == 0) {
 		arena_decay_dirty(tsdn, arena, false, true);
 	} else {
-		arena_background_thread_inactivity_check(tsdn, arena);
+		arena_background_thread_inactivity_check(tsdn, arena, false);
 	}
 }

@ -687,10 +688,11 @@ arena_decay_backlog_update(arena_decay_t *decay, uint64_t nadvance_u64,

 static void
 arena_decay_try_purge(tsdn_t *tsdn, arena_t *arena, arena_decay_t *decay,
-    extents_t *extents, size_t current_npages, size_t npages_limit) {
+    extents_t *extents, size_t current_npages, size_t npages_limit,
+    bool is_background_thread) {
 	if (current_npages > npages_limit) {
 		arena_decay_to_limit(tsdn, arena, decay, extents, false,
-		    npages_limit);
+		    npages_limit, is_background_thread);
 	}
 }

@ -720,7 +722,7 @@ arena_decay_epoch_advance_helper(arena_decay_t *decay, const nstime_t *time,

 static void
 arena_decay_epoch_advance(tsdn_t *tsdn, arena_t *arena, arena_decay_t *decay,
-    extents_t *extents, const nstime_t *time, bool purge) {
+    extents_t *extents, const nstime_t *time, bool is_background_thread) {
 	size_t current_npages = extents_npages_get(extents);
 	arena_decay_epoch_advance_helper(decay, time, current_npages);

@ -728,9 +730,10 @@ arena_decay_epoch_advance(tsdn_t *tsdn, arena_t *arena, arena_decay_t *decay,
 	/* We may unlock decay->mtx when try_purge(). Finish logging first. */
 	decay->nunpurged = (npages_limit > current_npages) ? npages_limit :
 	    current_npages;
-	if (purge) {
+
+	if (!background_thread_enabled() || is_background_thread) {
 		arena_decay_try_purge(tsdn, arena, decay, extents,
-		    current_npages, npages_limit);
+		    current_npages, npages_limit, is_background_thread);
 	}
 }

@ -795,7 +798,7 @@ arena_maybe_decay(tsdn_t *tsdn, arena_t *arena, arena_decay_t *decay,
 	if (decay_ms <= 0) {
 		if (decay_ms == 0) {
 			arena_decay_to_limit(tsdn, arena, decay, extents, false,
-			    0);
+			    0, is_background_thread);
 		}
 		return false;
 	}
@ -830,14 +833,13 @@ arena_maybe_decay(tsdn_t *tsdn, arena_t *arena, arena_decay_t *decay,
 	 */
 	bool advance_epoch = arena_decay_deadline_reached(decay, &time);
 	if (advance_epoch) {
-		bool should_purge = is_background_thread ||
-		    !background_thread_enabled();
 		arena_decay_epoch_advance(tsdn, arena, decay, extents, &time,
-		    should_purge);
+		    is_background_thread);
 	} else if (is_background_thread) {
 		arena_decay_try_purge(tsdn, arena, decay, extents,
 		    extents_npages_get(extents),
-		    arena_decay_backlog_npages_limit(decay));
+		    arena_decay_backlog_npages_limit(decay),
+		    is_background_thread);
 	}

 	return advance_epoch;
@ -916,7 +918,7 @@ arena_stash_decayed(tsdn_t *tsdn, arena_t *arena,
 static size_t
 arena_decay_stashed(tsdn_t *tsdn, arena_t *arena,
    extent_hooks_t **r_extent_hooks, arena_decay_t *decay, extents_t *extents,
-    bool all, extent_list_t *decay_extents) {
+    bool all, extent_list_t *decay_extents, bool is_background_thread) {
 	UNUSED size_t nmadvise, nunmapped;
 	size_t npurged;

@ -946,7 +948,7 @@ arena_decay_stashed(tsdn_t *tsdn, arena_t *arena,
 				extents_dalloc(tsdn, arena, r_extent_hooks,
 				    &arena->extents_muzzy, extent);
 				arena_background_thread_inactivity_check(tsdn,
-				    arena);
+				    arena, is_background_thread);
 				break;
 			}
 			/* Fall through. */
@ -985,7 +987,8 @@ arena_decay_stashed(tsdn_t *tsdn, arena_t *arena,
 */
 static void
 arena_decay_to_limit(tsdn_t *tsdn, arena_t *arena, arena_decay_t *decay,
-    extents_t *extents, bool all, size_t npages_limit) {
+    extents_t *extents, bool all, size_t npages_limit,
+    bool is_background_thread) {
 	witness_assert_depth_to_rank(tsdn_witness_tsdp_get(tsdn),
 	    WITNESS_RANK_CORE, 1);
 	malloc_mutex_assert_owner(tsdn, &decay->mtx);
@ -1005,7 +1008,8 @@ arena_decay_to_limit(tsdn_t *tsdn, arena_t *arena, arena_decay_t *decay,
 	    npages_limit, &decay_extents);
 	if (npurge != 0) {
 		UNUSED size_t npurged = arena_decay_stashed(tsdn, arena,
-		    &extent_hooks, decay, extents, all, &decay_extents);
+		    &extent_hooks, decay, extents, all, &decay_extents,
+		    is_background_thread);
 		assert(npurged == npurge);
 	}

@ -1018,7 +1022,8 @@ arena_decay_impl(tsdn_t *tsdn, arena_t *arena, arena_decay_t *decay,
    extents_t *extents, bool is_background_thread, bool all) {
 	if (all) {
 		malloc_mutex_lock(tsdn, &decay->mtx);
-		arena_decay_to_limit(tsdn, arena, decay, extents, all, 0);
+		arena_decay_to_limit(tsdn, arena, decay, extents, all, 0,
+		    is_background_thread);
 		malloc_mutex_unlock(tsdn, &decay->mtx);

 		return false;
@ -1252,7 +1257,7 @@ arena_destroy(tsd_t *tsd, arena_t *arena) {
 	 * Destroy the base allocator, which manages all metadata ever mapped by
 	 * this arena.
 	 */
-	base_delete(arena->base);
+	base_delete(tsd_tsdn(tsd), arena->base);
 }

 static extent_t *
@ -2046,7 +2051,7 @@ arena_new(tsdn_t *tsdn, unsigned ind, extent_hooks_t *extent_hooks) {
 		 * is done enough that we should have tsd.
 		 */
 		assert(!tsdn_null(tsdn));
-		pre_reentrancy(tsdn_tsd(tsdn));
+		pre_reentrancy(tsdn_tsd(tsdn), arena);
 		if (hooks_arena_new_hook) {
 			hooks_arena_new_hook();
 		}
@ -2056,7 +2061,7 @@ arena_new(tsdn_t *tsdn, unsigned ind, extent_hooks_t *extent_hooks) {
 	return arena;
 label_error:
 	if (ind != 0) {
-		base_delete(base);
+		base_delete(tsdn, base);
 	}
 	return NULL;
 }
@ -2082,28 +2087,33 @@ arena_prefork1(tsdn_t *tsdn, arena_t *arena) {

 void
 arena_prefork2(tsdn_t *tsdn, arena_t *arena) {
+	malloc_mutex_prefork(tsdn, &arena->extent_grow_mtx);
+}
+
+void
+arena_prefork3(tsdn_t *tsdn, arena_t *arena) {
 	extents_prefork(tsdn, &arena->extents_dirty);
 	extents_prefork(tsdn, &arena->extents_muzzy);
 	extents_prefork(tsdn, &arena->extents_retained);
 }

 void
-arena_prefork3(tsdn_t *tsdn, arena_t *arena) {
+arena_prefork4(tsdn_t *tsdn, arena_t *arena) {
 	malloc_mutex_prefork(tsdn, &arena->extent_avail_mtx);
 }

 void
-arena_prefork4(tsdn_t *tsdn, arena_t *arena) {
+arena_prefork5(tsdn_t *tsdn, arena_t *arena) {
 	base_prefork(tsdn, arena->base);
 }

 void
-arena_prefork5(tsdn_t *tsdn, arena_t *arena) {
+arena_prefork6(tsdn_t *tsdn, arena_t *arena) {
 	malloc_mutex_prefork(tsdn, &arena->large_mtx);
 }

 void
-arena_prefork6(tsdn_t *tsdn, arena_t *arena) {
+arena_prefork7(tsdn_t *tsdn, arena_t *arena) {
 	for (unsigned i = 0; i < NBINS; i++) {
 		malloc_mutex_prefork(tsdn, &arena->bins[i].lock);
 	}
@ -2122,6 +2132,7 @@ arena_postfork_parent(tsdn_t *tsdn, arena_t *arena) {
 	extents_postfork_parent(tsdn, &arena->extents_dirty);
 	extents_postfork_parent(tsdn, &arena->extents_muzzy);
 	extents_postfork_parent(tsdn, &arena->extents_retained);
+	malloc_mutex_postfork_parent(tsdn, &arena->extent_grow_mtx);
 	malloc_mutex_postfork_parent(tsdn, &arena->decay_dirty.mtx);
 	malloc_mutex_postfork_parent(tsdn, &arena->decay_muzzy.mtx);
 	if (config_stats) {
@ -2133,6 +2144,23 @@ void
 arena_postfork_child(tsdn_t *tsdn, arena_t *arena) {
 	unsigned i;

+	atomic_store_u(&arena->nthreads[0], 0, ATOMIC_RELAXED);
+	atomic_store_u(&arena->nthreads[1], 0, ATOMIC_RELAXED);
+	if (tsd_arena_get(tsdn_tsd(tsdn)) == arena) {
+		arena_nthreads_inc(arena, false);
+	}
+	if (tsd_iarena_get(tsdn_tsd(tsdn)) == arena) {
+		arena_nthreads_inc(arena, true);
+	}
+	if (config_stats) {
+		ql_new(&arena->tcache_ql);
+		tcache_t *tcache = tcache_get(tsdn_tsd(tsdn));
+		if (tcache != NULL && tcache->arena == arena) {
+			ql_elm_new(tcache, link);
+			ql_tail_insert(&arena->tcache_ql, tcache, link);
+		}
+	}
+
 	for (i = 0; i < NBINS; i++) {
 		malloc_mutex_postfork_child(tsdn, &arena->bins[i].lock);
 	}
@ -2142,6 +2170,7 @@ arena_postfork_child(tsdn_t *tsdn, arena_t *arena) {
 	extents_postfork_child(tsdn, &arena->extents_dirty);
 	extents_postfork_child(tsdn, &arena->extents_muzzy);
 	extents_postfork_child(tsdn, &arena->extents_retained);
+	malloc_mutex_postfork_child(tsdn, &arena->extent_grow_mtx);
 	malloc_mutex_postfork_child(tsdn, &arena->decay_dirty.mtx);
 	malloc_mutex_postfork_child(tsdn, &arena->decay_muzzy.mtx);
 	if (config_stats) {
--- a/contrib/jemalloc/src/background_thread.c
+++ b/contrib/jemalloc/src/background_thread.c
@ -316,7 +316,7 @@ background_threads_disable_single(tsd_t *tsd, background_thread_info_t *info) {
 		    &background_thread_lock);
 	}

-	pre_reentrancy(tsd);
+	pre_reentrancy(tsd, NULL);
 	malloc_mutex_lock(tsd_tsdn(tsd), &info->mtx);
 	bool has_thread;
 	assert(info->state != background_thread_paused);
@ -347,6 +347,38 @@ background_threads_disable_single(tsd_t *tsd, background_thread_info_t *info) {

 static void *background_thread_entry(void *ind_arg);

+static int
+background_thread_create_signals_masked(pthread_t *thread,
+    const pthread_attr_t *attr, void *(*start_routine)(void *), void *arg) {
+	/*
+	 * Mask signals during thread creation so that the thread inherits
+	 * an empty signal set.
+	 */
+	sigset_t set;
+	sigfillset(&set);
+	sigset_t oldset;
+	int mask_err = pthread_sigmask(SIG_SETMASK, &set, &oldset);
+	if (mask_err != 0) {
+		return mask_err;
+	}
+	int create_err = pthread_create_wrapper(thread, attr, start_routine,
+	    arg);
+	/*
+	 * Restore the signal mask.  Failure to restore the signal mask here
+	 * changes program behavior.
+	 */
+	int restore_err = pthread_sigmask(SIG_SETMASK, &oldset, NULL);
+	if (restore_err != 0) {
+		malloc_printf("<jemalloc>: background thread creation "
+		    "failed (%d), and signal mask restoration failed "
+		    "(%d)\n", create_err, restore_err);
+		if (opt_abort) {
+			abort();
+		}
+	}
+	return create_err;
+}
+
 static void
 check_background_thread_creation(tsd_t *tsd, unsigned *n_created,
    bool *created_threads) {
@ -376,9 +408,9 @@ check_background_thread_creation(tsd_t *tsd, unsigned *n_created,
 		 */
 		malloc_mutex_unlock(tsd_tsdn(tsd), &background_thread_lock);

-		pre_reentrancy(tsd);
-		int err = pthread_create_wrapper(&info->thread, NULL,
-		    background_thread_entry, (void *)(uintptr_t)i);
+		pre_reentrancy(tsd, NULL);
+		int err = background_thread_create_signals_masked(&info->thread,
+		    NULL, background_thread_entry, (void *)(uintptr_t)i);
 		post_reentrancy(tsd);

 		if (err == 0) {
@ -467,7 +499,9 @@ static void *
 background_thread_entry(void *ind_arg) {
 	unsigned thread_ind = (unsigned)(uintptr_t)ind_arg;
 	assert(thread_ind < ncpus);
-
+#ifdef JEMALLOC_HAVE_PTHREAD_SETNAME_NP
+	pthread_setname_np(pthread_self(), "jemalloc_bg_thd");
+#endif
 	if (opt_percpu_arena != percpu_arena_disabled) {
 		set_current_thread_affinity((int)thread_ind);
 	}
@ -523,12 +557,12 @@ background_thread_create(tsd_t *tsd, unsigned arena_ind) {
 		return false;
 	}

-	pre_reentrancy(tsd);
+	pre_reentrancy(tsd, NULL);
 	/*
 	 * To avoid complications (besides reentrancy), create internal
 	 * background threads with the underlying pthread_create.
 	 */
-	int err = pthread_create_wrapper(&info->thread, NULL,
+	int err = background_thread_create_signals_masked(&info->thread, NULL,
 	    background_thread_entry, (void *)thread_ind);
 	post_reentrancy(tsd);

--- a/contrib/jemalloc/src/base.c
+++ b/contrib/jemalloc/src/base.c
@ -15,7 +15,7 @@ static base_t	*b0;
 /******************************************************************************/

 static void *
-base_map(extent_hooks_t *extent_hooks, unsigned ind, size_t size) {
+base_map(tsdn_t *tsdn, extent_hooks_t *extent_hooks, unsigned ind, size_t size) {
 	void *addr;
 	bool zero = true;
 	bool commit = true;
@ -25,15 +25,19 @@ base_map(extent_hooks_t *extent_hooks, unsigned ind, size_t size) {
 	if (extent_hooks == &extent_hooks_default) {
 		addr = extent_alloc_mmap(NULL, size, PAGE, &zero, &commit);
 	} else {
+		/* No arena context as we are creating new arenas. */
+		tsd_t *tsd = tsdn_null(tsdn) ? tsd_fetch() : tsdn_tsd(tsdn);
+		pre_reentrancy(tsd, NULL);
 		addr = extent_hooks->alloc(extent_hooks, NULL, size, PAGE,
 		    &zero, &commit, ind);
+		post_reentrancy(tsd);
 	}

 	return addr;
 }

 static void
-base_unmap(extent_hooks_t *extent_hooks, unsigned ind, void *addr,
+base_unmap(tsdn_t *tsdn, extent_hooks_t *extent_hooks, unsigned ind, void *addr,
    size_t size) {
 	/*
 	 * Cascade through dalloc, decommit, purge_forced, and purge_lazy,
@ -61,27 +65,32 @@ base_unmap(extent_hooks_t *extent_hooks, unsigned ind, void *addr,
 		/* Nothing worked.  This should never happen. */
 		not_reached();
 	} else {
+		tsd_t *tsd = tsdn_null(tsdn) ? tsd_fetch() : tsdn_tsd(tsdn);
+		pre_reentrancy(tsd, NULL);
 		if (extent_hooks->dalloc != NULL &&
 		    !extent_hooks->dalloc(extent_hooks, addr, size, true,
 		    ind)) {
-			return;
+			goto label_done;
 		}
 		if (extent_hooks->decommit != NULL &&
 		    !extent_hooks->decommit(extent_hooks, addr, size, 0, size,
 		    ind)) {
-			return;
+			goto label_done;
 		}
 		if (extent_hooks->purge_forced != NULL &&
 		    !extent_hooks->purge_forced(extent_hooks, addr, size, 0,
 		    size, ind)) {
-			return;
+			goto label_done;
 		}
 		if (extent_hooks->purge_lazy != NULL &&
 		    !extent_hooks->purge_lazy(extent_hooks, addr, size, 0, size,
 		    ind)) {
-			return;
+			goto label_done;
 		}
 		/* Nothing worked.  That's the application's problem. */
+	label_done:
+		post_reentrancy(tsd);
+		return;
 	}
 }

@ -157,7 +166,7 @@ base_extent_bump_alloc(tsdn_t *tsdn, base_t *base, extent_t *extent,
 * On success a pointer to the initialized base_block_t header is returned.
 */
 static base_block_t *
-base_block_alloc(extent_hooks_t *extent_hooks, unsigned ind,
+base_block_alloc(tsdn_t *tsdn, extent_hooks_t *extent_hooks, unsigned ind,
    pszind_t *pind_last, size_t *extent_sn_next, size_t size,
    size_t alignment) {
 	alignment = ALIGNMENT_CEILING(alignment, QUANTUM);
@ -179,7 +188,7 @@ base_block_alloc(extent_hooks_t *extent_hooks, unsigned ind,
 	size_t next_block_size = HUGEPAGE_CEILING(sz_pind2sz(pind_next));
 	size_t block_size = (min_block_size > next_block_size) ? min_block_size
 	    : next_block_size;
-	base_block_t *block = (base_block_t *)base_map(extent_hooks, ind,
+	base_block_t *block = (base_block_t *)base_map(tsdn, extent_hooks, ind,
 	    block_size);
 	if (block == NULL) {
 		return NULL;
@ -207,8 +216,9 @@ base_extent_alloc(tsdn_t *tsdn, base_t *base, size_t size, size_t alignment) {
 	 * called.
 	 */
 	malloc_mutex_unlock(tsdn, &base->mtx);
-	base_block_t *block = base_block_alloc(extent_hooks, base_ind_get(base),
-	    &base->pind_last, &base->extent_sn_next, size, alignment);
+	base_block_t *block = base_block_alloc(tsdn, extent_hooks,
+	    base_ind_get(base), &base->pind_last, &base->extent_sn_next, size,
+	    alignment);
 	malloc_mutex_lock(tsdn, &base->mtx);
 	if (block == NULL) {
 		return NULL;
@ -234,8 +244,8 @@ base_t *
 base_new(tsdn_t *tsdn, unsigned ind, extent_hooks_t *extent_hooks) {
 	pszind_t pind_last = 0;
 	size_t extent_sn_next = 0;
-	base_block_t *block = base_block_alloc(extent_hooks, ind, &pind_last,
-	    &extent_sn_next, sizeof(base_t), QUANTUM);
+	base_block_t *block = base_block_alloc(tsdn, extent_hooks, ind,
+	    &pind_last, &extent_sn_next, sizeof(base_t), QUANTUM);
 	if (block == NULL) {
 		return NULL;
 	}
@ -249,7 +259,7 @@ base_new(tsdn_t *tsdn, unsigned ind, extent_hooks_t *extent_hooks) {
 	atomic_store_p(&base->extent_hooks, extent_hooks, ATOMIC_RELAXED);
 	if (malloc_mutex_init(&base->mtx, "base", WITNESS_RANK_BASE,
 	    malloc_mutex_rank_exclusive)) {
-		base_unmap(extent_hooks, ind, block, block->size);
+		base_unmap(tsdn, extent_hooks, ind, block, block->size);
 		return NULL;
 	}
 	base->pind_last = pind_last;
@ -272,13 +282,13 @@ base_new(tsdn_t *tsdn, unsigned ind, extent_hooks_t *extent_hooks) {
 }

 void
-base_delete(base_t *base) {
+base_delete(tsdn_t *tsdn, base_t *base) {
 	extent_hooks_t *extent_hooks = base_extent_hooks_get(base);
 	base_block_t *next = base->blocks;
 	do {
 		base_block_t *block = next;
 		next = block->next;
-		base_unmap(extent_hooks, base_ind_get(base), block,
+		base_unmap(tsdn, extent_hooks, base_ind_get(base), block,
 		    block->size);
 	} while (next != NULL);
 }
--- a/contrib/jemalloc/src/ctl.c
+++ b/contrib/jemalloc/src/ctl.c
@ -622,7 +622,7 @@ arenas_i2a(size_t i) {
 }

 static ctl_arena_t *
-arenas_i_impl(tsdn_t *tsdn, size_t i, bool compat, bool init) {
+arenas_i_impl(tsd_t *tsd, size_t i, bool compat, bool init) {
 	ctl_arena_t *ret;

 	assert(!compat || !init);
@ -635,15 +635,15 @@ arenas_i_impl(tsdn_t *tsdn, size_t i, bool compat, bool init) {
 				ctl_arena_stats_t	astats;
 			};
 			struct container_s *cont =
-			    (struct container_s *)base_alloc(tsdn, b0get(),
-			    sizeof(struct container_s), QUANTUM);
+			    (struct container_s *)base_alloc(tsd_tsdn(tsd),
+			    b0get(), sizeof(struct container_s), QUANTUM);
 			if (cont == NULL) {
 				return NULL;
 			}
 			ret = &cont->ctl_arena;
 			ret->astats = &cont->astats;
 		} else {
-			ret = (ctl_arena_t *)base_alloc(tsdn, b0get(),
+			ret = (ctl_arena_t *)base_alloc(tsd_tsdn(tsd), b0get(),
 			    sizeof(ctl_arena_t), QUANTUM);
 			if (ret == NULL) {
 				return NULL;
@ -659,7 +659,7 @@ arenas_i_impl(tsdn_t *tsdn, size_t i, bool compat, bool init) {

 static ctl_arena_t *
 arenas_i(size_t i) {
-	ctl_arena_t *ret = arenas_i_impl(TSDN_NULL, i, true, false);
+	ctl_arena_t *ret = arenas_i_impl(tsd_fetch(), i, true, false);
 	assert(ret != NULL);
 	return ret;
 }
@ -863,7 +863,7 @@ ctl_arena_refresh(tsdn_t *tsdn, arena_t *arena, ctl_arena_t *ctl_sdarena,
 }

 static unsigned
-ctl_arena_init(tsdn_t *tsdn, extent_hooks_t *extent_hooks) {
+ctl_arena_init(tsd_t *tsd, extent_hooks_t *extent_hooks) {
 	unsigned arena_ind;
 	ctl_arena_t *ctl_arena;

@ -876,12 +876,12 @@ ctl_arena_init(tsdn_t *tsdn, extent_hooks_t *extent_hooks) {
 	}

 	/* Trigger stats allocation. */
-	if (arenas_i_impl(tsdn, arena_ind, false, true) == NULL) {
+	if (arenas_i_impl(tsd, arena_ind, false, true) == NULL) {
 		return UINT_MAX;
 	}

 	/* Initialize new arena. */
-	if (arena_init(tsdn, arena_ind, extent_hooks) == NULL) {
+	if (arena_init(tsd_tsdn(tsd), arena_ind, extent_hooks) == NULL) {
 		return UINT_MAX;
 	}

@ -975,8 +975,9 @@ ctl_refresh(tsdn_t *tsdn) {
 }

 static bool
-ctl_init(tsdn_t *tsdn) {
+ctl_init(tsd_t *tsd) {
 	bool ret;
+	tsdn_t *tsdn = tsd_tsdn(tsd);

 	malloc_mutex_lock(tsdn, &ctl_mtx);
 	if (!ctl_initialized) {
@ -1010,14 +1011,14 @@ ctl_init(tsdn_t *tsdn) {
 		 * here rather than doing it lazily elsewhere, in order
 		 * to limit when OOM-caused errors can occur.
 		 */
-		if ((ctl_sarena = arenas_i_impl(tsdn, MALLCTL_ARENAS_ALL, false,
+		if ((ctl_sarena = arenas_i_impl(tsd, MALLCTL_ARENAS_ALL, false,
 		    true)) == NULL) {
 			ret = true;
 			goto label_return;
 		}
 		ctl_sarena->initialized = true;

-		if ((ctl_darena = arenas_i_impl(tsdn, MALLCTL_ARENAS_DESTROYED,
+		if ((ctl_darena = arenas_i_impl(tsd, MALLCTL_ARENAS_DESTROYED,
 		    false, true)) == NULL) {
 			ret = true;
 			goto label_return;
@ -1031,7 +1032,7 @@ ctl_init(tsdn_t *tsdn) {

 		ctl_arenas->narenas = narenas_total_get();
 		for (i = 0; i < ctl_arenas->narenas; i++) {
-			if (arenas_i_impl(tsdn, i, false, true) == NULL) {
+			if (arenas_i_impl(tsd, i, false, true) == NULL) {
 				ret = true;
 				goto label_return;
 			}
@ -1156,7 +1157,7 @@ ctl_byname(tsd_t *tsd, const char *name, void *oldp, size_t *oldlenp,
 	size_t mib[CTL_MAX_DEPTH];
 	const ctl_named_node_t *node;

-	if (!ctl_initialized && ctl_init(tsd_tsdn(tsd))) {
+	if (!ctl_initialized && ctl_init(tsd)) {
 		ret = EAGAIN;
 		goto label_return;
 	}
@ -1180,15 +1181,15 @@ ctl_byname(tsd_t *tsd, const char *name, void *oldp, size_t *oldlenp,
 }

 int
-ctl_nametomib(tsdn_t *tsdn, const char *name, size_t *mibp, size_t *miblenp) {
+ctl_nametomib(tsd_t *tsd, const char *name, size_t *mibp, size_t *miblenp) {
 	int ret;

-	if (!ctl_initialized && ctl_init(tsdn)) {
+	if (!ctl_initialized && ctl_init(tsd)) {
 		ret = EAGAIN;
 		goto label_return;
 	}

-	ret = ctl_lookup(tsdn, name, NULL, mibp, miblenp);
+	ret = ctl_lookup(tsd_tsdn(tsd), name, NULL, mibp, miblenp);
 label_return:
 	return(ret);
 }
@ -1200,7 +1201,7 @@ ctl_bymib(tsd_t *tsd, const size_t *mib, size_t miblen, void *oldp,
 	const ctl_named_node_t *node;
 	size_t i;

-	if (!ctl_initialized && ctl_init(tsd_tsdn(tsd))) {
+	if (!ctl_initialized && ctl_init(tsd)) {
 		ret = EAGAIN;
 		goto label_return;
 	}
@ -1696,7 +1697,7 @@ thread_tcache_flush_ctl(tsd_t *tsd, const size_t *mib, size_t miblen,
 	READONLY();
 	WRITEONLY();

-	tcache_flush();
+	tcache_flush(tsd);

 	ret = 0;
 label_return:
@ -1970,7 +1971,7 @@ arena_reset_finish_background_thread(tsd_t *tsd, unsigned arena_ind) {
 			unsigned ind = arena_ind % ncpus;
 			background_thread_info_t *info =
 			    &background_thread_info[ind];
-			assert(info->state = background_thread_paused);
+			assert(info->state == background_thread_paused);
 			malloc_mutex_lock(tsd_tsdn(tsd), &info->mtx);
 			info->state = background_thread_started;
 			malloc_mutex_unlock(tsd_tsdn(tsd), &info->mtx);
@ -2312,8 +2313,7 @@ arenas_create_ctl(tsd_t *tsd, const size_t *mib, size_t miblen, void *oldp,

 	extent_hooks = (extent_hooks_t *)&extent_hooks_default;
 	WRITE(extent_hooks, extent_hooks_t *);
-	if ((arena_ind = ctl_arena_init(tsd_tsdn(tsd), extent_hooks)) ==
-	    UINT_MAX) {
+	if ((arena_ind = ctl_arena_init(tsd, extent_hooks)) == UINT_MAX) {
 		ret = EAGAIN;
 		goto label_return;
 	}
--- a/contrib/jemalloc/src/extent.c
+++ b/contrib/jemalloc/src/extent.c
@ -1025,6 +1025,18 @@ extent_alloc_default(extent_hooks_t *extent_hooks, void *new_addr, size_t size,
 	    alignment, zero, commit);
 }

+static void
+extent_hook_pre_reentrancy(tsdn_t *tsdn, arena_t *arena) {
+	tsd_t *tsd = tsdn_null(tsdn) ? tsd_fetch() : tsdn_tsd(tsdn);
+	pre_reentrancy(tsd, arena);
+}
+
+static void
+extent_hook_post_reentrancy(tsdn_t *tsdn) {
+	tsd_t *tsd = tsdn_null(tsdn) ? tsd_fetch() : tsdn_tsd(tsdn);
+	post_reentrancy(tsd);
+}
+
 /*
 * If virtual memory is retained, create increasingly larger extents from which
 * to split requested extents in order to limit the total number of disjoint
@ -1073,9 +1085,11 @@ extent_grow_retained(tsdn_t *tsdn, arena_t *arena,
 		    &zeroed, &committed, (dss_prec_t)atomic_load_u(
 		    &arena->dss_prec, ATOMIC_RELAXED));
 	} else {
+		extent_hook_pre_reentrancy(tsdn, arena);
 		ptr = (*r_extent_hooks)->alloc(*r_extent_hooks, NULL,
 		    alloc_size, PAGE, &zeroed, &committed,
 		    arena_ind_get(arena));
+		extent_hook_post_reentrancy(tsdn);
 	}

 	extent_init(extent, arena, ptr, alloc_size, false, NSIZES,
@ -1247,8 +1261,10 @@ extent_alloc_wrapper_hard(tsdn_t *tsdn, arena_t *arena,
 		addr = extent_alloc_default_impl(tsdn, arena, new_addr, esize,
 		    alignment, zero, commit);
 	} else {
+		extent_hook_pre_reentrancy(tsdn, arena);
 		addr = (*r_extent_hooks)->alloc(*r_extent_hooks, new_addr,
 		    esize, alignment, zero, commit, arena_ind_get(arena));
+		extent_hook_post_reentrancy(tsdn);
 	}
 	if (addr == NULL) {
 		extent_dalloc(tsdn, arena, extent);
@ -1486,10 +1502,12 @@ extent_dalloc_wrapper_try(tsdn_t *tsdn, arena_t *arena,
 		err = extent_dalloc_default_impl(extent_base_get(extent),
 		    extent_size_get(extent));
 	} else {
+		extent_hook_pre_reentrancy(tsdn, arena);
 		err = ((*r_extent_hooks)->dalloc == NULL ||
 		    (*r_extent_hooks)->dalloc(*r_extent_hooks,
 		    extent_base_get(extent), extent_size_get(extent),
 		    extent_committed_get(extent), arena_ind_get(arena)));
+		extent_hook_post_reentrancy(tsdn);
 	}

 	if (!err) {
@ -1515,6 +1533,9 @@ extent_dalloc_wrapper(tsdn_t *tsdn, arena_t *arena,
 	}

 	extent_reregister(tsdn, extent);
+	if (*r_extent_hooks != &extent_hooks_default) {
+		extent_hook_pre_reentrancy(tsdn, arena);
+	}
 	/* Try to decommit; purge if that fails. */
 	bool zeroed;
 	if (!extent_committed_get(extent)) {
@ -1536,6 +1557,9 @@ extent_dalloc_wrapper(tsdn_t *tsdn, arena_t *arena,
 	} else {
 		zeroed = false;
 	}
+	if (*r_extent_hooks != &extent_hooks_default) {
+		extent_hook_post_reentrancy(tsdn);
+	}
 	extent_zeroed_set(extent, zeroed);

 	if (config_prof) {
@ -1579,9 +1603,11 @@ extent_destroy_wrapper(tsdn_t *tsdn, arena_t *arena,
 		extent_destroy_default_impl(extent_base_get(extent),
 		    extent_size_get(extent));
 	} else if ((*r_extent_hooks)->destroy != NULL) {
+		extent_hook_pre_reentrancy(tsdn, arena);
 		(*r_extent_hooks)->destroy(*r_extent_hooks,
 		    extent_base_get(extent), extent_size_get(extent),
 		    extent_committed_get(extent), arena_ind_get(arena));
+		extent_hook_post_reentrancy(tsdn);
 	}

 	extent_dalloc(tsdn, arena, extent);
@ -1602,9 +1628,15 @@ extent_commit_impl(tsdn_t *tsdn, arena_t *arena,
 	    WITNESS_RANK_CORE, growing_retained ? 1 : 0);

 	extent_hooks_assure_initialized(arena, r_extent_hooks);
+	if (*r_extent_hooks != &extent_hooks_default) {
+		extent_hook_pre_reentrancy(tsdn, arena);
+	}
 	bool err = ((*r_extent_hooks)->commit == NULL ||
 	    (*r_extent_hooks)->commit(*r_extent_hooks, extent_base_get(extent),
 	    extent_size_get(extent), offset, length, arena_ind_get(arena)));
+	if (*r_extent_hooks != &extent_hooks_default) {
+		extent_hook_post_reentrancy(tsdn);
+	}
 	extent_committed_set(extent, extent_committed_get(extent) || !err);
 	return err;
 }
@ -1633,10 +1665,16 @@ extent_decommit_wrapper(tsdn_t *tsdn, arena_t *arena,

 	extent_hooks_assure_initialized(arena, r_extent_hooks);

+	if (*r_extent_hooks != &extent_hooks_default) {
+		extent_hook_pre_reentrancy(tsdn, arena);
+	}
 	bool err = ((*r_extent_hooks)->decommit == NULL ||
 	    (*r_extent_hooks)->decommit(*r_extent_hooks,
 	    extent_base_get(extent), extent_size_get(extent), offset, length,
 	    arena_ind_get(arena)));
+	if (*r_extent_hooks != &extent_hooks_default) {
+		extent_hook_post_reentrancy(tsdn);
+	}
 	extent_committed_set(extent, extent_committed_get(extent) && err);
 	return err;
 }
@ -1663,10 +1701,21 @@ extent_purge_lazy_impl(tsdn_t *tsdn, arena_t *arena,
 	    WITNESS_RANK_CORE, growing_retained ? 1 : 0);

 	extent_hooks_assure_initialized(arena, r_extent_hooks);
-	return ((*r_extent_hooks)->purge_lazy == NULL ||
-	    (*r_extent_hooks)->purge_lazy(*r_extent_hooks,
+
+	if ((*r_extent_hooks)->purge_lazy == NULL) {
+		return true;
+	}
+	if (*r_extent_hooks != &extent_hooks_default) {
+		extent_hook_pre_reentrancy(tsdn, arena);
+	}
+	bool err = (*r_extent_hooks)->purge_lazy(*r_extent_hooks,
 	    extent_base_get(extent), extent_size_get(extent), offset, length,
-	    arena_ind_get(arena)));
+	    arena_ind_get(arena));
+	if (*r_extent_hooks != &extent_hooks_default) {
+		extent_hook_post_reentrancy(tsdn);
+	}
+
+	return err;
 }

 bool
@ -1699,10 +1748,20 @@ extent_purge_forced_impl(tsdn_t *tsdn, arena_t *arena,
 	    WITNESS_RANK_CORE, growing_retained ? 1 : 0);

 	extent_hooks_assure_initialized(arena, r_extent_hooks);
-	return ((*r_extent_hooks)->purge_forced == NULL ||
-	    (*r_extent_hooks)->purge_forced(*r_extent_hooks,
+
+	if ((*r_extent_hooks)->purge_forced == NULL) {
+		return true;
+	}
+	if (*r_extent_hooks != &extent_hooks_default) {
+		extent_hook_pre_reentrancy(tsdn, arena);
+	}
+	bool err = (*r_extent_hooks)->purge_forced(*r_extent_hooks,
 	    extent_base_get(extent), extent_size_get(extent), offset, length,
-	    arena_ind_get(arena)));
+	    arena_ind_get(arena));
+	if (*r_extent_hooks != &extent_hooks_default) {
+		extent_hook_post_reentrancy(tsdn);
+	}
+	return err;
 }

 bool
@ -1771,9 +1830,16 @@ extent_split_impl(tsdn_t *tsdn, arena_t *arena,

 	extent_lock2(tsdn, extent, trail);

-	if ((*r_extent_hooks)->split(*r_extent_hooks, extent_base_get(extent),
+	if (*r_extent_hooks != &extent_hooks_default) {
+		extent_hook_pre_reentrancy(tsdn, arena);
+	}
+	bool err = (*r_extent_hooks)->split(*r_extent_hooks, extent_base_get(extent),
 	    size_a + size_b, size_a, size_b, extent_committed_get(extent),
-	    arena_ind_get(arena))) {
+	    arena_ind_get(arena));
+	if (*r_extent_hooks != &extent_hooks_default) {
+		extent_hook_post_reentrancy(tsdn);
+	}
+	if (err) {
 		goto label_error_c;
 	}

@ -1843,10 +1909,12 @@ extent_merge_impl(tsdn_t *tsdn, arena_t *arena,
 		err = extent_merge_default_impl(extent_base_get(a),
 		    extent_base_get(b));
 	} else {
+		extent_hook_pre_reentrancy(tsdn, arena);
 		err = (*r_extent_hooks)->merge(*r_extent_hooks,
 		    extent_base_get(a), extent_size_get(a), extent_base_get(b),
 		    extent_size_get(b), extent_committed_get(a),
 		    arena_ind_get(arena));
+		extent_hook_post_reentrancy(tsdn);
 	}

 	if (err) {
--- a/contrib/jemalloc/src/jemalloc.c
+++ b/contrib/jemalloc/src/jemalloc.c
@ -1480,7 +1480,7 @@ malloc_init_hard(void) {

 	malloc_mutex_lock(tsd_tsdn(tsd), &init_lock);
 	/* Set reentrancy level to 1 during init. */
-	pre_reentrancy(tsd);
+	pre_reentrancy(tsd, NULL);
 	/* Initialize narenas before prof_boot2 (for allocation). */
 	if (malloc_init_narenas() || background_thread_boot1(tsd_tsdn(tsd))) {
 		UNLOCK_RETURN(tsd_tsdn(tsd), true, true)
@ -1803,7 +1803,7 @@ imalloc_body(static_opts_t *sopts, dynamic_opts_t *dopts, tsd_t *tsd) {
 		 */
 		assert(dopts->tcache_ind == TCACHE_IND_AUTOMATIC ||
 		    dopts->tcache_ind == TCACHE_IND_NONE);
-		assert(dopts->arena_ind = ARENA_IND_AUTOMATIC);
+		assert(dopts->arena_ind == ARENA_IND_AUTOMATIC);
 		dopts->tcache_ind = TCACHE_IND_NONE;
 		/* We know that arena 0 has already been initialized. */
 		dopts->arena_ind = 0;
@ -2268,7 +2268,15 @@ JEMALLOC_EXPORT void JEMALLOC_NOTHROW
 je_free(void *ptr) {
 	UTRACE(ptr, 0, 0);
 	if (likely(ptr != NULL)) {
-		tsd_t *tsd = tsd_fetch();
+		/*
+		 * We avoid setting up tsd fully (e.g. tcache, arena binding)
+		 * based on only free() calls -- other activities trigger the
+		 * minimal to full transition.  This is because free() may
+		 * happen during thread shutdown after tls deallocation: if a
+		 * thread never had any malloc activities until then, a
+		 * fully-setup tsd won't be destructed properly.
+		 */
+		tsd_t *tsd = tsd_fetch_min();
 		check_entry_exit_locking(tsd_tsdn(tsd));

 		tcache_t *tcache;
@ -2914,16 +2922,15 @@ je_mallctl(const char *name, void *oldp, size_t *oldlenp, void *newp,
 JEMALLOC_EXPORT int JEMALLOC_NOTHROW
 je_mallctlnametomib(const char *name, size_t *mibp, size_t *miblenp) {
 	int ret;
-	tsdn_t *tsdn;

 	if (unlikely(malloc_init())) {
 		return EAGAIN;
 	}

-	tsdn = tsdn_fetch();
-	check_entry_exit_locking(tsdn);
-	ret = ctl_nametomib(tsdn, name, mibp, miblenp);
-	check_entry_exit_locking(tsdn);
+	tsd_t *tsd = tsd_fetch();
+	check_entry_exit_locking(tsd_tsdn(tsd));
+	ret = ctl_nametomib(tsd, name, mibp, miblenp);
+	check_entry_exit_locking(tsd_tsdn(tsd));
 	return ret;
 }

@ -3143,7 +3150,7 @@ _malloc_prefork(void)
 		background_thread_prefork1(tsd_tsdn(tsd));
 	}
 	/* Break arena prefork into stages to preserve lock order. */
-	for (i = 0; i < 7; i++) {
+	for (i = 0; i < 8; i++) {
 		for (j = 0; j < narenas; j++) {
 			if ((arena = arena_get(tsd_tsdn(tsd), j, false)) !=
 			    NULL) {
@ -3169,6 +3176,9 @@ _malloc_prefork(void)
 				case 6:
 					arena_prefork6(tsd_tsdn(tsd), arena);
 					break;
+				case 7:
+					arena_prefork7(tsd_tsdn(tsd), arena);
+					break;
 				default: not_reached();
 				}
 			}
--- a/contrib/jemalloc/src/prof.c
+++ b/contrib/jemalloc/src/prof.c
@ -1633,7 +1633,7 @@ prof_dump(tsd_t *tsd, bool propagate_err, const char *filename,
 		return true;
 	}

-	pre_reentrancy(tsd);
+	pre_reentrancy(tsd, NULL);
 	malloc_mutex_lock(tsd_tsdn(tsd), &prof_dump_mtx);

 	prof_gctx_tree_t gctxs;
--- a/contrib/jemalloc/src/tcache.c
+++ b/contrib/jemalloc/src/tcache.c
@ -474,8 +474,7 @@ tcache_flush_cache(tsd_t *tsd, tcache_t *tcache) {
 }

 void
-tcache_flush(void) {
-	tsd_t *tsd = tsd_fetch();
+tcache_flush(tsd_t *tsd) {
 	assert(tcache_available(tsd));
 	tcache_flush_cache(tsd, tsd_tcachep_get(tsd));
 }
--- a/contrib/jemalloc/src/tsd.c
+++ b/contrib/jemalloc/src/tsd.c
@ -87,7 +87,8 @@ assert_tsd_data_cleanup_done(tsd_t *tsd) {

 static bool
 tsd_data_init_nocleanup(tsd_t *tsd) {
-	assert(tsd->state == tsd_state_reincarnated);
+	assert(tsd->state == tsd_state_reincarnated ||
+	    tsd->state == tsd_state_minimal_initialized);
 	/*
 	 * During reincarnation, there is no guarantee that the cleanup function
 	 * will be called (deallocation may happen after all tsd destructors).
@ -103,15 +104,8 @@ tsd_data_init_nocleanup(tsd_t *tsd) {
 }

 tsd_t *
-tsd_fetch_slow(tsd_t *tsd, bool internal) {
-	if (internal) {
-		/* For internal background threads use only. */
-		assert(tsd->state == tsd_state_uninitialized);
-		tsd->state = tsd_state_reincarnated;
-		tsd_set(tsd);
-		tsd_data_init_nocleanup(tsd);
-		return tsd;
-	}
+tsd_fetch_slow(tsd_t *tsd, bool minimal) {
+	assert(!tsd_fast(tsd));

 	if (tsd->state == tsd_state_nominal_slow) {
 		/* On slow path but no work needed. */
@ -119,11 +113,28 @@ tsd_fetch_slow(tsd_t *tsd, bool internal) {
 		    tsd_reentrancy_level_get(tsd) > 0 ||
 		    *tsd_arenas_tdata_bypassp_get(tsd));
 	} else if (tsd->state == tsd_state_uninitialized) {
-		tsd->state = tsd_state_nominal;
-		tsd_slow_update(tsd);
-		/* Trigger cleanup handler registration. */
-		tsd_set(tsd);
-		tsd_data_init(tsd);
+		if (!minimal) {
+			tsd->state = tsd_state_nominal;
+			tsd_slow_update(tsd);
+			/* Trigger cleanup handler registration. */
+			tsd_set(tsd);
+			tsd_data_init(tsd);
+		} else {
+			tsd->state = tsd_state_minimal_initialized;
+			tsd_set(tsd);
+			tsd_data_init_nocleanup(tsd);
+		}
+	} else if (tsd->state == tsd_state_minimal_initialized) {
+		if (!minimal) {
+			/* Switch to fully initialized. */
+			tsd->state = tsd_state_nominal;
+			assert(*tsd_reentrancy_levelp_get(tsd) >= 1);
+			(*tsd_reentrancy_levelp_get(tsd))--;
+			tsd_slow_update(tsd);
+			tsd_data_init(tsd);
+		} else {
+			assert_tsd_data_cleanup_done(tsd);
+		}
 	} else if (tsd->state == tsd_state_purgatory) {
 		tsd->state = tsd_state_reincarnated;
 		tsd_set(tsd);
@ -197,6 +208,9 @@ tsd_cleanup(void *arg) {
 	case tsd_state_uninitialized:
 		/* Do nothing. */
 		break;
+	case tsd_state_minimal_initialized:
+		/* This implies the thread only did free() in its life time. */
+		/* Fall through. */
 	case tsd_state_reincarnated:
 		/*
 		 * Reincarnated means another destructor deallocated memory
--- a/contrib/libarchive/NEWS
+++ b/contrib/libarchive/NEWS
@ -1,3 +1,5 @@
+Jul 09, 2017: libarchive 3.3.2 released
+
 Mar 16, 2017: NFSv4 ACL support for Linux (librichacl)

 Feb 26, 2017: libarchive 3.3.1 released
--- a/contrib/libarchive/libarchive/archive.h
+++ b/contrib/libarchive/libarchive/archive.h
@ -36,7 +36,7 @@
 * assert that ARCHIVE_VERSION_NUMBER >= 2012108.
 */
 /* Note: Compiler will complain if this does not match archive_entry.h! */
-#define	ARCHIVE_VERSION_NUMBER 3003001
+#define	ARCHIVE_VERSION_NUMBER 3003002

 #include <sys/stat.h>
 #include <stddef.h>  /* for wchar_t */
@ -155,7 +155,7 @@ __LA_DECL int		archive_version_number(void);
 /*
 * Textual name/version of the library, useful for version displays.
 */
-#define	ARCHIVE_VERSION_ONLY_STRING "3.3.1"
+#define	ARCHIVE_VERSION_ONLY_STRING "3.3.2"
 #define	ARCHIVE_VERSION_STRING "libarchive " ARCHIVE_VERSION_ONLY_STRING
 __LA_DECL const char *	archive_version_string(void);

--- a/contrib/libarchive/libarchive/archive_entry.h
+++ b/contrib/libarchive/libarchive/archive_entry.h
@ -30,7 +30,7 @@
 #define	ARCHIVE_ENTRY_H_INCLUDED

 /* Note: Compiler will complain if this does not match archive.h! */
-#define	ARCHIVE_VERSION_NUMBER 3003001
+#define	ARCHIVE_VERSION_NUMBER 3003002

 /*
 * Note: archive_entry.h is for use outside of libarchive; the
--- a/contrib/libarchive/libarchive/test/test_archive_read_close_twice_open_filename.c
+++ b/contrib/libarchive/libarchive/test/test_archive_read_close_twice_open_filename.c
@ -28,10 +28,12 @@ __FBSDID("$FreeBSD$");

 DEFINE_TEST(test_archive_read_close_twice_open_filename)
 {
+	const char *filename = "empty.file";
 	struct archive* a = archive_read_new();

+	assertMakeFile(filename, 0644, "");
 	assertEqualInt(ARCHIVE_OK, archive_read_support_format_empty(a));
-	assertEqualInt(ARCHIVE_OK, archive_read_open_filename(a, 0, 0));
+	assertEqualInt(ARCHIVE_OK, archive_read_open_filename(a, filename, 0));
 	assertEqualInt(0, archive_errno(a));
 	assertEqualString(NULL, archive_error_string(a));

--- a/contrib/libpcap/bpf/net/bpf_filter.c
+++ b/contrib/libpcap/bpf/net/bpf_filter.c
@ -61,7 +61,12 @@
 #include <sys/types.h>
 #include <sys/time.h>

-#define	SOLARIS	(defined(sun) && (defined(__SVR4) || defined(__svr4__)))
+#if (defined(sun) && (defined(__SVR4) || defined(__svr4__)))
+#define	SOLARIS 1
+#else
+#define SOLARIS 0
+#endif
+
 #if defined(__hpux) || SOLARIS
 # include <sys/sysmacros.h>
 # include <sys/stream.h>
--- a/contrib/mdocml/lib.in
+++ b/contrib/mdocml/lib.in
@ -46,6 +46,7 @@ LINE("libdevctl",	"Device Control Library (libdevctl, \\-ldevctl)")
 LINE("libdevinfo",	"Device and Resource Information Utility Library (libdevinfo, \\-ldevinfo)")
 LINE("libdevstat",	"Device Statistics Library (libdevstat, \\-ldevstat)")
 LINE("libdisk",		"Interface to Slice and Partition Labels Library (libdisk, \\-ldisk)")
+LINE("libdl",		"Dynamic Linker Services Filter (libdl, \\-ldl)")
 LINE("libdm",		"Device Mapper Library (libdm, \\-ldm)")
 LINE("libdwarf",	"DWARF Access Library (libdwarf, \\-ldwarf)")
 LINE("libedit",		"Command Line Editor Library (libedit, \\-ledit)")
--- a/contrib/netbsd-tests/lib/libc/gen/t_setdomainname.c
+++ b/contrib/netbsd-tests/lib/libc/gen/t_setdomainname.c
@ -34,11 +34,13 @@ __RCSID("$NetBSD: t_setdomainname.c,v 1.2 2012/03/25 08:17:54 joerg Exp $");
 #include <sys/param.h>

 #include <atf-c.h>
+#include <err.h>
 #include <errno.h>
+#include <fcntl.h>
 #include <string.h>
 #include <unistd.h>

-static char domain[MAXHOSTNAMELEN];
+#define	DOMAIN_BACKUP_FILE "domain.bak"

 static const char domains[][MAXHOSTNAMELEN] = {
 	"1234567890",
@ -47,6 +49,45 @@ static const char domains[][MAXHOSTNAMELEN] = {
 	"--------------------------------------------------------------------"
 };

+static void
+backup_domain(void)
+{
+	char domain[MAXHOSTNAMELEN];
+	int fd;
+	size_t l;
+	ssize_t r,n = 0;
+
+	memset(domain, 0, sizeof(domain));
+
+	ATF_REQUIRE_EQ(0, getdomainname(domain, sizeof(domain)));
+	l = strnlen(domain, MAXHOSTNAMELEN);
+	fd = open(DOMAIN_BACKUP_FILE, O_WRONLY | O_CREAT | O_EXCL, 0644);
+	ATF_REQUIRE(fd >= 0);
+	while ((r = write(fd, domain + n, l - n)) > 0)
+		n += r;
+	ATF_REQUIRE_EQ(0, r);
+	close(fd);
+}
+
+static void
+restore_domain(void)
+{
+	char domain[MAXHOSTNAMELEN];
+	int fd;
+	ssize_t r, n = 0;
+
+	memset(domain, 0, sizeof(domain));
+	if ((fd = open(DOMAIN_BACKUP_FILE, O_RDONLY)) < 0)
+		err(1, "open");
+	while ((r = read(fd, domain + n, sizeof(domain) - n)) > 0)
+		n += r;
+	if (r < 0)
+		err(1, "read");
+	if (setdomainname(domain, n) != 0)
+		err(1, "setdomainname");
+	close(fd);
+}
+
 ATF_TC_WITH_CLEANUP(setdomainname_basic);
 ATF_TC_HEAD(setdomainname_basic, tc)
 {
@ -59,6 +100,7 @@ ATF_TC_BODY(setdomainname_basic, tc)
 	char name[MAXHOSTNAMELEN];
 	size_t i;

+	backup_domain();
 	for (i = 0; i < __arraycount(domains); i++) {

 		(void)memset(name, 0, sizeof(name));
@ -80,12 +122,11 @@ ATF_TC_BODY(setdomainname_basic, tc)
 		ATF_REQUIRE(strcmp(domains[i], name) == 0);
 	}

-	(void)setdomainname(domain, sizeof(domain));
 }

 ATF_TC_CLEANUP(setdomainname_basic, tc)
 {
-	(void)setdomainname(domain, sizeof(domain));
+	restore_domain();
 }

 ATF_TC_WITH_CLEANUP(setdomainname_limit);
@ -100,6 +141,7 @@ ATF_TC_BODY(setdomainname_limit, tc)
 	char name[MAXHOSTNAMELEN + 1];

 	(void)memset(name, 0, sizeof(name));
+	backup_domain();

 #ifdef __FreeBSD__
 	ATF_REQUIRE(setdomainname(name, MAXHOSTNAMELEN - 1 ) == 0);
@ -110,10 +152,10 @@ ATF_TC_BODY(setdomainname_limit, tc)

 ATF_TC_CLEANUP(setdomainname_limit, tc)
 {
-	(void)setdomainname(domain, sizeof(domain));
+	restore_domain();
 }

-ATF_TC_WITH_CLEANUP(setdomainname_perm);
+ATF_TC(setdomainname_perm);
 ATF_TC_HEAD(setdomainname_perm, tc)
 {
 	atf_tc_set_md_var(tc, "descr", "Can normal user set the domain name?");
@ -122,24 +164,16 @@ ATF_TC_HEAD(setdomainname_perm, tc)

 ATF_TC_BODY(setdomainname_perm, tc)
 {
+	char domain[MAXHOSTNAMELEN];
+
+	memset(domain, 0, sizeof(domain));

 	errno = 0;
-
 	ATF_REQUIRE_ERRNO(EPERM, setdomainname(domain, sizeof(domain)) == -1);
 }

-ATF_TC_CLEANUP(setdomainname_perm, tc)
-{
-	(void)setdomainname(domain, sizeof(domain));
-}
-
 ATF_TP_ADD_TCS(tp)
 {
-
-	(void)memset(domain, 0, sizeof(domain));
-
-	ATF_REQUIRE(getdomainname(domain, sizeof(domain)) == 0);
-
 	ATF_TP_ADD_TC(tp, setdomainname_basic);
 	ATF_TP_ADD_TC(tp, setdomainname_limit);
 	ATF_TP_ADD_TC(tp, setdomainname_perm);
--- a/contrib/netbsd-tests/lib/libc/stdio/t_printf.c
+++ b/contrib/netbsd-tests/lib/libc/stdio/t_printf.c
@ -127,6 +127,10 @@ ATF_TC_HEAD(snprintf_float, tc)

 	atf_tc_set_md_var(tc, "descr", "test that floating conversions don't"
 	    " leak memory");
+#ifdef	__FreeBSD__
+	atf_tc_set_md_var(tc, "require.memory", "64m");
+	atf_tc_set_md_var(tc, "require.user", "root");
+#endif
 }

 ATF_TC_BODY(snprintf_float, tc)
@ -140,10 +144,17 @@ ATF_TC_BODY(snprintf_float, tc)
 	char buf[1000];
 	struct rlimit rl;

+#ifdef	__FreeBSD__
+	rl.rlim_cur = rl.rlim_max = 32 * 1024 * 1024;
+	ATF_CHECK(setrlimit(RLIMIT_AS, &rl) != -1);
+	rl.rlim_cur = rl.rlim_max = 32 * 1024 * 1024;
+	ATF_CHECK(setrlimit(RLIMIT_DATA, &rl) != -1);
+#else
 	rl.rlim_cur = rl.rlim_max = 1 * 1024 * 1024;
 	ATF_CHECK(setrlimit(RLIMIT_AS, &rl) != -1);
 	rl.rlim_cur = rl.rlim_max = 1 * 1024 * 1024;
 	ATF_CHECK(setrlimit(RLIMIT_DATA, &rl) != -1);
+#endif

 	time(&now);
 	srand(now);
--- a/crypto/heimdal/lib/krb5/ticket.c
+++ b/crypto/heimdal/lib/krb5/ticket.c
@ -713,8 +713,8 @@ _krb5_extract_ticket(krb5_context context,
    /* check server referral and save principal */
    ret = _krb5_principalname2krb5_principal (context,
 					      &tmp_principal,
-					      rep->kdc_rep.ticket.sname,
-					      rep->kdc_rep.ticket.realm);
+					      rep->enc_part.sname,
+					      rep->enc_part.srealm);
    if (ret)
 	goto out;
    if((flags & EXTRACT_TICKET_ALLOW_SERVER_MISMATCH) == 0){
--- a/etc/Makefile
+++ b/etc/Makefile
@ -342,19 +342,6 @@ distribution:

 MTREE_CMD?=	mtree

-.if ${MK_INSTALL_AS_USER} == "yes" && ${_uid} != 0
-MTREE_FILTER= sed -e 's,\([gu]\)name=,\1id=,g' \
-	-e 's,\(uid=\)[^ ]* ,\1${_uid} ,' \
-	-e 's,\(gid=\)[^ ]* ,\1${_gid} ,' \
-	-e 's,\(uid=\)[^ ]*$$,\1${_uid},' \
-	-e 's,\(gid=\)[^ ]*$$,\1${_gid},' 
-.else
-MTREE_FILTER= cat
-.if !defined(NO_FSCHG)
-MTREE_FSCHG=	-i
-.endif
-.endif
-
 MTREES=		mtree/BSD.root.dist		/		\
 		mtree/BSD.var.dist		/var		\
 		mtree/BSD.usr.dist		/usr		\
@ -467,3 +454,16 @@ etc-examples: etc-examples-install
 	    DESTDIR=${DESTDIR}${SHAREDIR}/examples

 .include <bsd.prog.mk>
+
+.if ${MK_INSTALL_AS_USER} == "yes" && ${_uid} != 0
+MTREE_FILTER= sed -e 's,\([gu]\)name=,\1id=,g' \
+	-e 's,\(uid=\)[^ ]* ,\1${_uid} ,' \
+	-e 's,\(gid=\)[^ ]* ,\1${_gid} ,' \
+	-e 's,\(uid=\)[^ ]*$$,\1${_uid},' \
+	-e 's,\(gid=\)[^ ]*$$,\1${_gid},'
+.else
+MTREE_FILTER= cat
+.if !defined(NO_FSCHG)
+MTREE_FSCHG=	-i
+.endif
+.endif
--- a/etc/defaults/rc.conf
+++ b/etc/defaults/rc.conf
@ -92,7 +92,7 @@ geli_autodetach="YES"	# Automatically detach on last close.
 root_rw_mount="YES"	# Set to NO to inhibit remounting root read-write.
 root_hold_delay="30"	# Time to wait for root mount hold release.
 fsck_y_enable="NO"	# Set to YES to do fsck -y if the initial preen fails.
-fsck_y_flags=""		# Additional flags for fsck -y
+fsck_y_flags="-T ffs:-R -T ufs:-R"	# Additional flags for fsck -y
 background_fsck="YES"	# Attempt to run fsck in the background where possible.
 background_fsck_delay="60" # Time to wait (seconds) before starting the fsck.
 netfs_types="nfs:NFS smbfs:SMB" # Net filesystems.
--- a/etc/mtree/BSD.include.dist
+++ b/etc/mtree/BSD.include.dist
@ -90,6 +90,8 @@
    cam
        ata
        ..
+        mmc
+        ..
        nvme
        ..
        scsi
@ -234,7 +236,7 @@
    gssapi
    ..
    infiniband
-        complib 
+        complib
        ..
        iba
        ..
--- a/etc/mtree/BSD.tests.dist
+++ b/etc/mtree/BSD.tests.dist
@ -400,6 +400,8 @@
                ..
            ..
        ..
+        zoneinfo
+        ..
    ..
    sys
        acl
@ -642,6 +644,8 @@
        ..
        gzip
        ..
+        hexdump
+        ..
        ident
        ..
        indent
--- a/etc/rc.d/bsnmpd
+++ b/etc/rc.d/bsnmpd
@ -5,7 +5,7 @@

 # PROVIDE: bsnmpd
 # REQUIRE: NETWORKING syslogd
-# KEYWORD: nojail shutdown
+# KEYWORD: nojailvnet shutdown

 . /etc/rc.subr

--- a/etc/rc.d/defaultroute
+++ b/etc/rc.d/defaultroute
@ -7,7 +7,7 @@

 # PROVIDE: defaultroute
 # REQUIRE: devd netif stf
-# KEYWORD: nojail
+# KEYWORD: nojailvnet

 . /etc/rc.subr
 . /etc/network.subr
--- a/etc/rc.d/dhclient
+++ b/etc/rc.d/dhclient
@ -4,7 +4,7 @@
 #

 # PROVIDE: dhclient
-# KEYWORD: nojail nostart
+# KEYWORD: nojailvnet nostart

 . /etc/rc.subr
 . /etc/network.subr
--- a/etc/rc.d/ip6addrctl
+++ b/etc/rc.d/ip6addrctl
@ -6,7 +6,7 @@
 # PROVIDE: ip6addrctl
 # REQUIRE: FILESYSTEMS
 # BEFORE: netif
-# KEYWORD: nojail
+# KEYWORD: nojailvnet

 . /etc/rc.subr
 . /etc/network.subr
--- a/etc/rc.d/ipfw
+++ b/etc/rc.d/ipfw
@ -17,7 +17,9 @@ start_cmd="ipfw_start"
 start_precmd="ipfw_prestart"
 start_postcmd="ipfw_poststart"
 stop_cmd="ipfw_stop"
+status_cmd="ipfw_status"
 required_modules="ipfw"
+extra_commands="status"

 set_rcvar_obsolete ipv6_firewall_enable

@ -109,6 +111,18 @@ ipfw_stop()
 	done
 }

+ipfw_status()
+{
+    status=$(sysctl -n net.inet.ip.fw.enable)
+    if [ ${status} -eq 0 ]; then
+	echo "ipfw is not enabled"
+	exit 1
+    else
+	echo "ipfw is enabled"
+	exit 0
+    fi
+}
+
 load_rc_config $name
 firewall_coscripts="/etc/rc.d/natd ${firewall_coscripts}"

--- a/etc/rc.d/ipfw_netflow
+++ b/etc/rc.d/ipfw_netflow
@ -0,0 +1,77 @@
+#!/bin/sh
+#
+# $FreeBSD$
+#
+
+# PROVIDE: ipfw_netflow
+# REQUIRE: ipfw
+# KEYWORD: nojailvnet
+
+. /etc/rc.subr
+. /etc/network.subr
+
+name="ipfw_netflow"
+desc="firewall, ipfw, netflow"
+rcvar="${name}_enable"
+start_cmd="${name}_start"
+stop_cmd="${name}_stop"
+start_precmd="${name}_test"
+status_cmd="${name}_status"
+required_modules="ipfw ng_netflow ng_ipfw"
+extra_commands="status"
+
+: ${ipfw_netflow_hook:=9995}
+: ${ipfw_netflow_rule:=01000}
+: ${ipfw_netflow_ip:=127.0.0.1}
+: ${ipfw_netflow_port:=9995}
+: ${ipfw_netflow_version:=}
+
+ipfw_netflow_test()
+{
+    if [ "${ipfw_netflow_version}" != "" ] && [ "${ipfw_netflow_version}" != 9 ]; then
+	err 1 "Unknown netflow version \'${ipfw_netflow_version}\'"
+    fi
+    case "${ipfw_netflow_hook}" in
+	[!0-9]*)
+	    err 1 "Bad value \"${ipfw_netflow_hook}\": Hook must be numerical"
+    esac
+    case "${ipfw_netflow_rule}" in
+	[!0-9]*)
+	    err 1 "Bad value \"${ipfw_netflow_rule}\": Rule number must be numerical"
+    esac
+}
+
+ipfw_netflow_is_running()
+{
+	ngctl show netflow: > /dev/null 2>&1 && return 0 || return 1
+}
+
+ipfw_netflow_status()
+{
+	ipfw_netflow_is_running && echo "ipfw_netflow is active" || echo "ipfw_netflow is not active"
+}
+
+ipfw_netflow_start()
+{
+	ipfw_netflow_is_running && err 1 "ipfw_netflow is already active"
+	ipfw add ${ipfw_netflow_rule} ngtee ${ipfw_netflow_hook} ip from any to any
+	ngctl -f - <<-EOF
+	mkpeer ipfw: netflow ${ipfw_netflow_hook} iface0
+	name ipfw:${ipfw_netflow_hook} netflow
+	mkpeer netflow: ksocket export${ipfw_netflow_version} inet/dgram/udp
+	msg netflow: setdlt {iface=0 dlt=12}
+	name netflow:export${ipfw_netflow_version} netflow_export
+	msg netflow:export${ipfw_netflow_version} connect inet/${ipfw_netflow_ip}:${ipfw_netflow_port}
+EOF
+}
+
+ipfw_netflow_stop()
+{
+    ipfw_netflow_is_running || err 1 "ipfw_netflow is not active"
+    ngctl shutdown netflow:
+    ipfw delete ${ipfw_netflow_rule}
+}
+
+load_rc_config $name
+
+run_rc_command $*
--- a/etc/rc.d/ipsec
+++ b/etc/rc.d/ipsec
@ -6,7 +6,7 @@
 # PROVIDE: ipsec
 # REQUIRE: FILESYSTEMS
 # BEFORE:  DAEMON mountcritremote
-# KEYWORD: nojail
+# KEYWORD: nojailvnet

 . /etc/rc.subr

--- a/etc/rc.d/natd
+++ b/etc/rc.d/natd
@ -4,7 +4,7 @@
 #

 # PROVIDE: natd
-# KEYWORD: nostart nojail
+# KEYWORD: nostart nojailvnet

 . /etc/rc.subr
 . /etc/network.subr
--- a/etc/rc.d/pf
+++ b/etc/rc.d/pf
@ -6,7 +6,7 @@
 # PROVIDE: pf
 # REQUIRE: FILESYSTEMS netif pflog pfsync
 # BEFORE:  routing
-# KEYWORD: nojail
+# KEYWORD: nojailvnet

 . /etc/rc.subr

--- a/etc/rc.d/pflog
+++ b/etc/rc.d/pflog
@ -5,7 +5,7 @@

 # PROVIDE: pflog
 # REQUIRE: FILESYSTEMS netif
-# KEYWORD: nojail
+# KEYWORD: nojailvnet

 . /etc/rc.subr

--- a/etc/rc.d/pfsync
+++ b/etc/rc.d/pfsync
@ -5,7 +5,7 @@

 # PROVIDE: pfsync
 # REQUIRE: FILESYSTEMS netif
-# KEYWORD: nojail
+# KEYWORD: nojailvnet

 . /etc/rc.subr

@ -15,7 +15,7 @@ rcvar="pfsync_enable"
 start_precmd="pfsync_prestart"
 start_cmd="pfsync_start"
 stop_cmd="pfsync_stop"
-required_modules="pf"
+required_modules="pf pfsync"

 pfsync_prestart()
 {
@ -36,7 +36,6 @@ pfsync_start()
 	if [ -n "${pfsync_syncpeer}" ]; then
 		_syncpeer="syncpeer ${pfsync_syncpeer}"
 	fi
-	load_kld pfsync
 	ifconfig pfsync0 $_syncpeer syncdev $pfsync_syncdev $pfsync_ifconfig up
 }

--- a/etc/rc.d/rarpd
+++ b/etc/rc.d/rarpd
@ -6,7 +6,7 @@
 # PROVIDE: rarpd
 # REQUIRE: DAEMON FILESYSTEMS
 # BEFORE:  LOGIN
-# KEYWORD: nojail
+# KEYWORD: nojailvnet

 . /etc/rc.subr

--- a/etc/rc.d/route6d
+++ b/etc/rc.d/route6d
@ -5,7 +5,7 @@

 # PROVIDE: route6d
 # REQUIRE: netif routing
-# KEYWORD: nojail
+# KEYWORD: nojailvnet

 . /etc/rc.subr

--- a/etc/rc.d/routed
+++ b/etc/rc.d/routed
@ -6,7 +6,7 @@
 # PROVIDE: routed
 # REQUIRE: netif routing
 # BEFORE: NETWORK
-# KEYWORD: nojail
+# KEYWORD: nojailvnet

 . /etc/rc.subr

--- a/etc/rc.d/rtadvd
+++ b/etc/rc.d/rtadvd
@ -6,7 +6,7 @@
 # PROVIDE: rtadvd
 # REQUIRE: DAEMON
 # BEFORE:  LOGIN
-# KEYWORD: nojail shutdown
+# KEYWORD: nojailvnet shutdown

 . /etc/rc.subr
 . /etc/network.subr
--- a/etc/rc.d/rtsold
+++ b/etc/rc.d/rtsold
@ -6,7 +6,7 @@
 # PROVIDE: rtsold
 # REQUIRE: netif
 # BEFORE: NETWORKING
-# KEYWORD: nojail shutdown
+# KEYWORD: nojailvnet shutdown

 . /etc/rc.subr

--- a/etc/rc.d/static_arp
+++ b/etc/rc.d/static_arp
@ -31,7 +31,7 @@

 # PROVIDE: static_arp
 # REQUIRE: netif
-# KEYWORD: nojail
+# KEYWORD: nojailvnet

 . /etc/rc.subr
 . /etc/network.subr
--- a/etc/rc.d/static_ndp
+++ b/etc/rc.d/static_ndp
@ -31,7 +31,7 @@

 # PROVIDE: static_ndp
 # REQUIRE: netif
-# KEYWORD: nojail
+# KEYWORD: nojailvnet

 . /etc/rc.subr
 . /etc/network.subr
--- a/etc/root/dot.login
+++ b/etc/root/dot.login
@ -2,8 +2,11 @@
 #
 # .login - csh login script, read by login shell, after `.cshrc' at login.
 #
-# see also csh(1), environ(7).
+# See also csh(1), environ(7).
 #

-# Uncomment to display a random cookie each login:
+# Query terminal size; useful for serial lines.
+if ( -x /usr/bin/resizewin ) /usr/bin/resizewin -z
+
+# Uncomment to display a random cookie on each login.
 # if ( -x /usr/bin/fortune ) /usr/bin/fortune -s
--- a/etc/root/dot.profile
+++ b/etc/root/dot.profile
@ -8,3 +8,9 @@ TERM=${TERM:-xterm}
 export TERM
 PAGER=more
 export PAGER
+
+# Query terminal size; useful for serial lines.
+if [ -x /usr/bin/resizewin ] ; then /usr/bin/resizewin -z ; fi
+
+# Uncomment to display a random cookie on each login.
+# if [ -x /usr/bin/fortune ] ; then /usr/bin/fortune -s ; fi
--- a/gnu/usr.bin/gdb/gdb/gdb.1
+++ b/gnu/usr.bin/gdb/gdb/gdb.1
@ -44,6 +44,11 @@ gdb \- The GNU Debugger
 .IR core \||\| procID\c
 \&\|]\&\|]
 .ad b
+.SH DEPRECATION NOTICE
+This version of gdb is deprecated and will be removed from future versions
+of the FreeBSD base system.
+A newer version of gdb is available from ports or packages
+(devel/gdb).
 .SH DESCRIPTION
 The purpose of a debugger such as GDB is to allow you to see what is
 going on ``inside'' another program while it executes\(em\&or what another
--- a/gnu/usr.bin/gdb/kgdb/kgdb.1
+++ b/gnu/usr.bin/gdb/kgdb/kgdb.1
@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd October 11, 2006
+.Dd July 5, 2017
 .Dt KGDB 1
 .Os
 .Sh NAME
@ -40,6 +40,16 @@
 .Op Fl d Ar crashdir
 .Op Fl c Ar core | Fl n Ar dumpnr | Fl r Ar device
 .Op Ar kernel Op Ar core
+.Sh DEPRECATION NOTICE
+This version of
+.Nm
+is deprecated and will be removed from future versions of the
+.Fx
+base system.
+A newer version of
+.Nm
+is available from ports or packages
+(devel/gdb).
 .Sh DESCRIPTION
 The
 .Nm
--- a/include/Makefile
+++ b/include/Makefile
@ -42,7 +42,7 @@ LHDRS=	aio.h errno.h fcntl.h linker_set.h poll.h stdatomic.h stdint.h \
 LDIRS=	bsm cam geom net net80211 netgraph netinet netinet6 \
 	netipsec netsmb nfs nfsclient nfsserver sys vm

-LSUBDIRS=	cam/ata cam/nvme cam/scsi \
+LSUBDIRS=	cam/ata cam/mmc cam/nvme cam/scsi \
 	dev/acpica dev/agp dev/an dev/bktr dev/ciss dev/filemon dev/firewire \
 	dev/hwpmc dev/hyperv \
 	dev/ic dev/iicbus dev/io dev/lmc dev/mfi dev/mmc dev/nvme \
--- a/lib/Makefile
+++ b/lib/Makefile
@ -40,6 +40,7 @@ SUBDIR=	${SUBDIR_BOOTSTRAP} \
 	libdevctl \
 	libdevinfo \
 	libdevstat \
+	${_libdl} \
 	libdwarf \
 	libedit \
 	libevent \
@ -183,6 +184,10 @@ _libproc=	libproc
 _librtld_db=	librtld_db
 .endif

+.if defined(LINKER_FEATURES) && ${LINKER_FEATURES:Mfilter}
+_libdl=		libdl
+.endif
+
 SUBDIR.${MK_OPENSSL}+=	libmp
 SUBDIR.${MK_PMC}+=	libpmc
 SUBDIR.${MK_RADIUS_SUPPORT}+=	libradius
--- a/lib/libc++experimental/Makefile.depend
+++ b/lib/libc++experimental/Makefile.depend
@ -0,0 +1,14 @@
+# $FreeBSD$
+# Autogenerated - do NOT edit!
+
+DIRDEPS = \
+	include \
+	include/xlocale \
+	lib/msun \
+
+
+.include <dirdeps.mk>
+
+.if ${DEP_RELDIR} == ${_DEP_RELDIR}
+# local dependencies - needed for -jN in clean tree
+.endif
--- a/lib/libc/gen/dlfcn.c
+++ b/lib/libc/gen/dlfcn.c
@ -27,6 +27,8 @@
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");

+#if !defined(IN_LIBDL) || defined(PIC)
+
 /*
 * Linkage to services provided by the dynamic linker.
 */
@ -57,95 +59,107 @@ void _rtld_atfork_post(int *);

 #pragma weak _rtld_error
 void
-_rtld_error(const char *fmt, ...)
+_rtld_error(const char *fmt __unused, ...)
 {
 }

 #pragma weak dladdr
 int
-dladdr(const void *addr, Dl_info *dlip)
+dladdr(const void *addr __unused, Dl_info *dlip __unused)
 {
+
 	_rtld_error(sorry);
-	return 0;
+	return (0);
 }

 #pragma weak dlclose
 int
-dlclose(void *handle)
+dlclose(void *handle __unused)
 {
+
 	_rtld_error(sorry);
-	return -1;
+	return (-1);
 }

 #pragma weak dlerror
 char *
 dlerror(void)
 {
-	return sorry;
+
+	return (sorry);
 }

 #pragma weak dllockinit
 void
 dllockinit(void *context,
-	   void *(*lock_create)(void *context),
-	   void (*rlock_acquire)(void *lock),
-	   void (*wlock_acquire)(void *lock),
-	   void (*lock_release)(void *lock),
-	   void (*lock_destroy)(void *lock),
-	   void (*context_destroy)(void *context))
+    void *(*lock_create)(void *context) __unused,
+    void (*rlock_acquire)(void *lock) __unused,
+    void (*wlock_acquire)(void *lock) __unused,
+    void (*lock_release)(void *lock) __unused,
+    void (*lock_destroy)(void *lock) __unused,
+    void (*context_destroy)(void *context) __unused)
 {
+
 	if (context_destroy != NULL)
 		context_destroy(context);
 }

 #pragma weak dlopen
 void *
-dlopen(const char *name, int mode)
+dlopen(const char *name __unused, int mode __unused)
 {
+
 	_rtld_error(sorry);
-	return NULL;
+	return (NULL);
 }

 #pragma weak dlsym
 void *
-dlsym(void * __restrict handle, const char * __restrict name)
+dlsym(void * __restrict handle __unused, const char * __restrict name __unused)
 {
+
 	_rtld_error(sorry);
-	return NULL;
+	return (NULL);
 }

 #pragma weak dlfunc
 dlfunc_t
-dlfunc(void * __restrict handle, const char * __restrict name)
+dlfunc(void * __restrict handle __unused, const char * __restrict name __unused)
 {
+
 	_rtld_error(sorry);
-	return NULL;
+	return (NULL);
 }

 #pragma weak dlvsym
 void *
-dlvsym(void * __restrict handle, const char * __restrict name,
-    const char * __restrict version)
+dlvsym(void * __restrict handle __unused, const char * __restrict name __unused,
+    const char * __restrict version __unused)
 {
+
 	_rtld_error(sorry);
-	return NULL;
+	return (NULL);
 }

 #pragma weak dlinfo
 int
-dlinfo(void * __restrict handle, int request, void * __restrict p)
+dlinfo(void * __restrict handle __unused, int request __unused,
+    void * __restrict p __unused)
 {
+
 	_rtld_error(sorry);
-	return 0;
+	return (0);
 }

 #pragma weak _rtld_thread_init
 void
-_rtld_thread_init(void * li)
+_rtld_thread_init(void *li __unused)
 {
+
 	_rtld_error(sorry);
 }

+#ifndef IN_LIBDL
 static pthread_once_t dl_phdr_info_once = PTHREAD_ONCE_INIT;
 static struct dl_phdr_info phdr_info;

@ -181,44 +195,50 @@ dl_init_phdr_info(void)
 	}
 	phdr_info.dlpi_adds = 1;
 }
+#endif

 #pragma weak dl_iterate_phdr
 int
-dl_iterate_phdr(int (*callback)(struct dl_phdr_info *, size_t, void *),
-    void *data)
+dl_iterate_phdr(int (*callback)(struct dl_phdr_info *, size_t, void *) __unused,
+    void *data __unused)
 {

+#ifndef IN_LIBDL
 	__init_elf_aux_vector();
 	if (__elf_aux_vector == NULL)
 		return (1);
 	_once(&dl_phdr_info_once, dl_init_phdr_info);
 	return (callback(&phdr_info, sizeof(phdr_info), data));
+#else
+	return (0);
+#endif
 }

 #pragma weak fdlopen
 void *
-fdlopen(int fd, int mode)
+fdlopen(int fd __unused, int mode __unused)
 {

 	_rtld_error(sorry);
-	return NULL;
+	return (NULL);
 }

 #pragma weak _rtld_atfork_pre
 void
-_rtld_atfork_pre(int *locks)
+_rtld_atfork_pre(int *locks __unused)
 {
 }

 #pragma weak _rtld_atfork_post
 void
-_rtld_atfork_post(int *locks)
+_rtld_atfork_post(int *locks __unused)
 {
 }

 #pragma weak _rtld_addr_phdr
 int
-_rtld_addr_phdr(const void *addr, struct dl_phdr_info *phdr_info)
+_rtld_addr_phdr(const void *addr __unused,
+    struct dl_phdr_info *phdr_info_a __unused)
 {

 	return (0);
@ -234,8 +254,10 @@ _rtld_get_stack_prot(void)

 #pragma weak _rtld_is_dlopened
 int
-_rtld_is_dlopened(void *arg)
+_rtld_is_dlopened(void *arg __unused)
 {

 	return (0);
 }
+
+#endif /* !defined(IN_LIBDL) || defined(PIC) */
--- a/lib/libc/gen/dlopen.3
+++ b/lib/libc/gen/dlopen.3
@ -32,7 +32,7 @@
 .\" @(#) dlopen.3 1.6 90/01/31 SMI
 .\" $FreeBSD$
 .\"
-.Dd February 14, 2015
+.Dd July 7, 2017
 .Dt DLOPEN 3
 .Os
 .Sh NAME
@ -377,6 +377,14 @@ option to
 for symbols defined in the executable to become visible to
 .Fn dlsym .
 .Pp
+Other ELF platforms require linking with
+.Lb libdl
+to provide
+.Fn dlopen
+and other functions.
+.Fx
+does not require linking with the library, but supports it for compatibility.
+.Pp
 In previous implementations, it was necessary to prepend an underscore
 to all external symbols in order to gain symbol
 compatibility with object code compiled from the C language.
--- a/lib/libc/net/nsdispatch.c
+++ b/lib/libc/net/nsdispatch.c
@ -525,7 +525,7 @@ nss_load_module(const char *source, nss_module_register_fn reg_fn)
 	vector_sort(_nsmod, _nsmodsize, sizeof(*_nsmod), string_compare);
 }

-
+static int exiting = 0;

 static void
 ns_mod_free(ns_mod *mod)
@ -536,12 +536,10 @@ ns_mod_free(ns_mod *mod)
 		return;
 	if (mod->unregister != NULL)
 		mod->unregister(mod->mtab, mod->mtabsize);
-	if (mod->handle != nss_builtin_handle)
+	if (mod->handle != nss_builtin_handle && !exiting)
 		(void)dlclose(mod->handle);
 }

-
-
 /*
 * Cleanup
 */
@ -550,6 +548,7 @@ nss_atexit(void)
 {
 	int isthreaded;

+	exiting = 1;
 	isthreaded = __isthreaded;
 	if (isthreaded)
 		(void)_pthread_rwlock_wrlock(&nss_lock);
@ -561,8 +560,6 @@ nss_atexit(void)
 		(void)_pthread_rwlock_unlock(&nss_lock);
 }

-
-
 /*
 * Finally, the actual implementation.
 */
--- a/lib/libc/regex/regcomp.c
+++ b/lib/libc/regex/regcomp.c
@ -51,6 +51,7 @@ __FBSDID("$FreeBSD$");
 #include <limits.h>
 #include <stdlib.h>
 #include <regex.h>
+#include <stdbool.h>
 #include <wchar.h>
 #include <wctype.h>

@ -61,6 +62,24 @@ __FBSDID("$FreeBSD$");

 #include "cname.h"

+/*
+ * Branching context, used to keep track of branch state for all of the branch-
+ * aware functions. In addition to keeping track of branch positions for the
+ * p_branch_* functions, we use this to simplify some clumsiness in BREs for
+ * detection of whether ^ is acting as an anchor or being used erroneously and
+ * also for whether we're in a sub-expression or not.
+ */
+struct branchc {
+	sopno start;
+	sopno back;
+	sopno fwd;
+
+	int nbranch;
+	int nchain;
+	bool outer;
+	bool terminate;
+};
+
 /*
 * parse structure, passed up and down to avoid global variables and
 * other clumsinesses
@ -77,6 +96,11 @@ struct parse {
 #	define	NPAREN	10	/* we need to remember () 1-9 for back refs */
 	sopno pbegin[NPAREN];	/* -> ( ([0] unused) */
 	sopno pend[NPAREN];	/* -> ) ([0] unused) */
+	bool allowbranch;	/* can this expression branch? */
+	bool bre;		/* convenience; is this a BRE? */
+	bool (*parse_expr)(struct parse *, struct branchc *);
+	void (*pre_parse)(struct parse *, struct branchc *);
+	void (*post_parse)(struct parse *, struct branchc *);
 };

 /* ========= begin header generated by ./mkh ========= */
@ -85,11 +109,17 @@ extern "C" {
 #endif

 /* === regcomp.c === */
-static void p_ere(struct parse *p, int stop);
-static void p_ere_exp(struct parse *p);
+static bool p_ere_exp(struct parse *p, struct branchc *bc);
 static void p_str(struct parse *p);
-static void p_bre(struct parse *p, int end1, int end2);
-static int p_simp_re(struct parse *p, int starordinary);
+static int p_branch_eat_delim(struct parse *p, struct branchc *bc);
+static void p_branch_ins_offset(struct parse *p, struct branchc *bc);
+static void p_branch_fix_tail(struct parse *p, struct branchc *bc);
+static bool p_branch_empty(struct parse *p, struct branchc *bc);
+static bool p_branch_do(struct parse *p, struct branchc *bc);
+static void p_bre_pre_parse(struct parse *p, struct branchc *bc);
+static void p_bre_post_parse(struct parse *p, struct branchc *bc);
+static void p_re(struct parse *p, int end1, int end2);
+static bool p_simp_re(struct parse *p, struct branchc *bc);
 static int p_count(struct parse *p);
 static void p_bracket(struct parse *p);
 static void p_b_term(struct parse *p, cset *cs);
@ -139,6 +169,7 @@ static char nuls[10];		/* place to point scanner in event of error */
 #define	MORE2()	(p->next+1 < p->end)
 #define	SEE(c)	(MORE() && PEEK() == (c))
 #define	SEETWO(a, b)	(MORE() && MORE2() && PEEK() == (a) && PEEK2() == (b))
+#define	SEESPEC(a)	(p->bre ? SEETWO('\\', a) : SEE(a))
 #define	EAT(c)	((SEE(c)) ? (NEXT(), 1) : 0)
 #define	EATTWO(a, b)	((SEETWO(a, b)) ? (NEXT2(), 1) : 0)
 #define	NEXT()	(p->next++)
@ -247,6 +278,19 @@ regcomp(regex_t * __restrict preg,
 		p->pbegin[i] = 0;
 		p->pend[i] = 0;
 	}
+	if (cflags & REG_EXTENDED) {
+		p->allowbranch = true;
+		p->bre = false;
+		p->parse_expr = p_ere_exp;
+		p->pre_parse = NULL;
+		p->post_parse = NULL;
+	} else {
+		p->allowbranch = false;
+		p->bre = true;
+		p->parse_expr = p_simp_re;
+		p->pre_parse = p_bre_pre_parse;
+		p->post_parse = p_bre_post_parse;
+	}
 	g->sets = NULL;
 	g->ncsets = 0;
 	g->cflags = cflags;
@ -264,12 +308,10 @@ regcomp(regex_t * __restrict preg,
 	/* do it */
 	EMIT(OEND, 0);
 	g->firststate = THERE();
-	if (cflags&REG_EXTENDED)
-		p_ere(p, OUT);
-	else if (cflags&REG_NOSPEC)
+	if (cflags & REG_NOSPEC)
 		p_str(p);
 	else
-		p_bre(p, OUT, OUT);
+		p_re(p, OUT, OUT);
 	EMIT(OEND, 0);
 	g->laststate = THERE();

@ -305,56 +347,12 @@ regcomp(regex_t * __restrict preg,
 }

 /*
- - p_ere - ERE parser top level, concatenation and alternation
- == static void p_ere(struct parse *p, int_t stop);
+ - p_ere_exp - parse one subERE, an atom possibly followed by a repetition op,
+ - return whether we should terminate or not
+ == static bool p_ere_exp(struct parse *p);
 */
-static void
-p_ere(struct parse *p,
-	int stop)		/* character this ERE should end at */
-{
-	char c;
-	sopno prevback;
-	sopno prevfwd;
-	sopno conc;
-	int first = 1;		/* is this the first alternative? */
-
-	for (;;) {
-		/* do a bunch of concatenated expressions */
-		conc = HERE();
-		while (MORE() && (c = PEEK()) != '|' && c != stop)
-			p_ere_exp(p);
-		(void)REQUIRE(HERE() != conc, REG_EMPTY);	/* require nonempty */
-
-		if (!EAT('|'))
-			break;		/* NOTE BREAK OUT */
-
-		if (first) {
-			INSERT(OCH_, conc);	/* offset is wrong */
-			prevfwd = conc;
-			prevback = conc;
-			first = 0;
-		}
-		ASTERN(OOR1, prevback);
-		prevback = THERE();
-		AHEAD(prevfwd);			/* fix previous offset */
-		prevfwd = HERE();
-		EMIT(OOR2, 0);			/* offset is very wrong */
-	}
-
-	if (!first) {		/* tail-end fixups */
-		AHEAD(prevfwd);
-		ASTERN(O_CH, prevback);
-	}
-
-	assert(!MORE() || SEE(stop));
-}
-
-/*
- - p_ere_exp - parse one subERE, an atom possibly followed by a repetition op
- == static void p_ere_exp(struct parse *p);
- */
-static void
-p_ere_exp(struct parse *p)
+static bool
+p_ere_exp(struct parse *p, struct branchc *bc)
 {
 	char c;
 	wint_t wc;
@ -377,7 +375,7 @@ p_ere_exp(struct parse *p)
 			p->pbegin[subno] = HERE();
 		EMIT(OLPAREN, subno);
 		if (!SEE(')'))
-			p_ere(p, ')');
+			p_re(p, ')', IGN);
 		if (subno < NPAREN) {
 			p->pend[subno] = HERE();
 			assert(p->pend[subno] != 0);
@ -445,7 +443,7 @@ p_ere_exp(struct parse *p)
 		/* FALLTHROUGH */
 	default:
 		if (p->error != 0)
-			return;
+			return (false);
 		p->next--;
 		wc = WGETNEXT();
 		ordinary(p, wc);
@ -453,12 +451,12 @@ p_ere_exp(struct parse *p)
 	}

 	if (!MORE())
-		return;
+		return (false);
 	c = PEEK();
 	/* we call { a repetition if followed by a digit */
 	if (!( c == '*' || c == '+' || c == '?' ||
 				(c == '{' && MORE2() && isdigit((uch)PEEK2())) ))
-		return;		/* no repetition, we're done */
+		return (false);		/* no repetition, we're done */
 	NEXT();

 	(void)REQUIRE(!wascaret, REG_BADRPT);
@ -504,12 +502,13 @@ p_ere_exp(struct parse *p)
 	}

 	if (!MORE())
-		return;
+		return (false);
 	c = PEEK();
 	if (!( c == '*' || c == '+' || c == '?' ||
 				(c == '{' && MORE2() && isdigit((uch)PEEK2())) ) )
-		return;
+		return (false);
 	SETERROR(REG_BADRPT);
+	return (false);
 }

 /*
@ -525,9 +524,129 @@ p_str(struct parse *p)
 }

 /*
- - p_bre - BRE parser top level, anchoring and concatenation
- == static void p_bre(struct parse *p,  int end1, \
- ==	int end2);
+ * Eat consecutive branch delimiters for the kind of expression that we are
+ * parsing, return the number of delimiters that we ate.
+ */
+static int
+p_branch_eat_delim(struct parse *p, struct branchc *bc)
+{
+	int nskip;
+
+	nskip = 0;
+	while (EAT('|'))
+		++nskip;
+	return (nskip);
+}
+
+/*
+ * Insert necessary branch book-keeping operations. This emits a
+ * bogus 'next' offset, since we still have more to parse
+ */
+static void
+p_branch_ins_offset(struct parse *p, struct branchc *bc)
+{
+
+	if (bc->nbranch == 0) {
+		INSERT(OCH_, bc->start);	/* offset is wrong */
+		bc->fwd = bc->start;
+		bc->back = bc->start;
+	}
+
+	ASTERN(OOR1, bc->back);
+	bc->back = THERE();
+	AHEAD(bc->fwd);			/* fix previous offset */
+	bc->fwd = HERE();
+	EMIT(OOR2, 0);			/* offset is very wrong */
+	++bc->nbranch;
+}
+
+/*
+ * Fix the offset of the tail branch, if we actually had any branches.
+ * This is to correct the bogus placeholder offset that we use.
+ */
+static void
+p_branch_fix_tail(struct parse *p, struct branchc *bc)
+{
+
+	/* Fix bogus offset at the tail if we actually have branches */
+	if (bc->nbranch > 0) {
+		AHEAD(bc->fwd);
+		ASTERN(O_CH, bc->back);
+	}
+}
+
+/*
+ * Signal to the parser that an empty branch has been encountered; this will,
+ * in the future, be used to allow for more permissive behavior with empty
+ * branches. The return value should indicate whether parsing may continue
+ * or not.
+ */
+static bool
+p_branch_empty(struct parse *p, struct branchc *bc)
+{
+
+	SETERROR(REG_EMPTY);
+	return (false);
+}
+
+/*
+ * Take care of any branching requirements. This includes inserting the
+ * appropriate branching instructions as well as eating all of the branch
+ * delimiters until we either run out of pattern or need to parse more pattern.
+ */
+static bool
+p_branch_do(struct parse *p, struct branchc *bc)
+{
+	int ate = 0;
+
+	ate = p_branch_eat_delim(p, bc);
+	if (ate == 0)
+		return (false);
+	else if ((ate > 1 || (bc->outer && !MORE())) && !p_branch_empty(p, bc))
+		/*
+		 * Halt parsing only if we have an empty branch and p_branch_empty
+		 * indicates that we must not continue. In the future, this will not
+		 * necessarily be an error.
+		 */
+		return (false);
+	p_branch_ins_offset(p, bc);
+
+	return (true);
+}
+
+static void
+p_bre_pre_parse(struct parse *p, struct branchc *bc)
+{
+
+	(void) bc;
+	/*
+	 * Does not move cleanly into expression parser because of
+	 * ordinary interpration of * at the beginning position of
+	 * an expression.
+	 */
+	if (EAT('^')) {
+		EMIT(OBOL, 0);
+		p->g->iflags |= USEBOL;
+		p->g->nbol++;
+	}
+}
+
+static void
+p_bre_post_parse(struct parse *p, struct branchc *bc)
+{
+
+	/* Expression is terminating due to EOL token */
+	if (bc->terminate) {
+		DROP(1);
+		EMIT(OEOL, 0);
+		p->g->iflags |= USEEOL;
+		p->g->neol++;
+	}
+}
+
+/*
+ - p_re - Top level parser, concatenation and BRE anchoring
+ == static void p_re(struct parse *p, int end1, int end2);
 * Giving end1 as OUT essentially eliminates the end1/end2 check.
 *
 * This implementation is a bit of a kludge, in that a trailing $ is first
@ -535,40 +654,55 @@ p_str(struct parse *p)
 * The amount of lookahead needed to avoid this kludge is excessive.
 */
 static void
-p_bre(struct parse *p,
-	int end1,		/* first terminating character */
-	int end2)		/* second terminating character */
+p_re(struct parse *p,
+	int end1,	/* first terminating character */
+	int end2)	/* second terminating character; ignored for EREs */
 {
-	sopno start = HERE();
-	int first = 1;			/* first subexpression? */
-	int wasdollar = 0;
+	struct branchc bc;

-	if (EAT('^')) {
-		EMIT(OBOL, 0);
-		p->g->iflags |= USEBOL;
-		p->g->nbol++;
+	bc.nbranch = 0;
+	if (end1 == OUT && end2 == OUT)
+		bc.outer = true;
+	else
+		bc.outer = false;
+#define	SEEEND()	(!p->bre ? SEE(end1) : SEETWO(end1, end2))
+	for (;;) {
+		bc.start = HERE();
+		bc.nchain = 0;
+		bc.terminate = false;
+		if (p->pre_parse != NULL)
+			p->pre_parse(p, &bc);
+		while (MORE() && (!p->allowbranch || !SEESPEC('|')) && !SEEEND()) {
+			bc.terminate = p->parse_expr(p, &bc);
+			++bc.nchain;
+		}
+		if (p->post_parse != NULL)
+			p->post_parse(p, &bc);
+		(void) REQUIRE(HERE() != bc.start, REG_EMPTY);
+		if (!p->allowbranch)
+			break;
+		/*
+		 * p_branch_do's return value indicates whether we should
+		 * continue parsing or not. This is both for correctness and
+		 * a slight optimization, because it will check if we've
+		 * encountered an empty branch or the end of the string
+		 * immediately following a branch delimiter.
+		 */
+		if (!p_branch_do(p, &bc))
+			break;
 	}
-	while (MORE() && !SEETWO(end1, end2)) {
-		wasdollar = p_simp_re(p, first);
-		first = 0;
-	}
-	if (wasdollar) {	/* oops, that was a trailing anchor */
-		DROP(1);
-		EMIT(OEOL, 0);
-		p->g->iflags |= USEEOL;
-		p->g->neol++;
-	}
-
-	(void)REQUIRE(HERE() != start, REG_EMPTY);	/* require nonempty */
+#undef SEE_END
+	if (p->allowbranch)
+		p_branch_fix_tail(p, &bc);
+	assert(!MORE() || SEE(end1));
 }

 /*
 - p_simp_re - parse a simple RE, an atom possibly followed by a repetition
- == static int p_simp_re(struct parse *p, int starordinary);
+ == static bool p_simp_re(struct parse *p, struct branchc *bc);
 */
-static int			/* was the simple RE an unbackslashed $? */
-p_simp_re(struct parse *p,
-	int starordinary)	/* is a leading * an ordinary character? */
+static bool			/* was the simple RE an unbackslashed $? */
+p_simp_re(struct parse *p, struct branchc *bc)
 {
 	int c;
 	int count;
@ -614,7 +748,7 @@ p_simp_re(struct parse *p,
 		EMIT(OLPAREN, subno);
 		/* the MORE here is an error heuristic */
 		if (MORE() && !SEETWO('\\', ')'))
-			p_bre(p, '\\', ')');
+			p_re(p, '\\', ')');
 		if (subno < NPAREN) {
 			p->pend[subno] = HERE();
 			assert(p->pend[subno] != 0);
@ -650,11 +784,16 @@ p_simp_re(struct parse *p,
 		p->g->backrefs = 1;
 		break;
 	case '*':
-		(void)REQUIRE(starordinary, REG_BADRPT);
+		/*
+		 * Ordinary if used as the first character beyond BOL anchor of
+		 * a (sub-)expression, counts as a bad repetition operator if it
+		 * appears otherwise.
+		 */
+		(void)REQUIRE(bc->nchain == 0, REG_BADRPT);
 		/* FALLTHROUGH */
 	default:
 		if (p->error != 0)
-			return(0);	/* Definitely not $... */
+			return (false);	/* Definitely not $... */
 		p->next--;
 		wc = WGETNEXT();
 		ordinary(p, wc);
@ -685,9 +824,9 @@ p_simp_re(struct parse *p,
 			SETERROR(REG_BADBR);
 		}
 	} else if (c == '$')     /* $ (but not \$) ends it */
-		return(1);
+		return (true);

-	return(0);
+	return (false);
 }

 /*
--- a/lib/libc/regex/regex2.h
+++ b/lib/libc/regex/regex2.h
@ -189,4 +189,5 @@ struct re_guts {

 /* misc utilities */
 #define	OUT	(CHAR_MIN - 1)	/* a non-character value */
+#define	IGN	(CHAR_MIN - 2)
 #define ISWORD(c)       (iswalnum((uch)(c)) || (c) == '_')
--- a/lib/libc/sys/mmap.2
+++ b/lib/libc/sys/mmap.2
@ -329,10 +329,12 @@ stack top is the starting address returned by the call, plus
 bytes.
 The bottom of the stack at maximum growth is the starting
 address returned by the call.
-The system uses guards to prevent the inadvertent use of
-regions into which stacks created with
+.Pp
+Stacks created with
 .Dv MAP_STACK
-will automatically grow, without mapping the whole stack in advance.
+automatically grow.
+Guards prevent inadvertent use of the regions into which those
+stacks can grow without requiring mapping the whole stack in advance.
 .El
 .Pp
 The
--- a/lib/libc/tests/gen/Makefile
+++ b/lib/libc/tests/gen/Makefile
@ -72,6 +72,7 @@ CFLAGS+=		-I${.CURDIR}
 SRCS.fmtcheck2_test=	fmtcheck_test.c
 SRCS.fnmatch2_test=	fnmatch_test.c

+TEST_METADATA.setdomainname_test+=	is_exclusive=true
 TESTS_SUBDIRS=	execve
 TESTS_SUBDIRS+=	posix_spawn

--- a/lib/libcam/Makefile
+++ b/lib/libcam/Makefile
@ -36,8 +36,10 @@ MLINKS+=	cam.3 cam_open_device.3 \
 		cam_cdbparse.3 csio_encode_visit.3 \
 		cam_cdbparse.3 buff_encode_visit.3

-.PATH:		${SRCTOP}/sys/cam/scsi ${SRCTOP}/sys/cam/ata \
-		${SRCTOP}/sys/cam
+.PATH:		${SRCTOP}/sys/cam \
+		${SRCTOP}/sys/cam/ata \
+		${SRCTOP}/sys/cam/mmc \
+		${SRCTOP}/sys/cam/scsi

 CFLAGS+=	-I${.CURDIR} -I${SRCTOP}/sys

--- a/lib/libclang_rt/stats/Makefile.depend
+++ b/lib/libclang_rt/stats/Makefile.depend
@ -0,0 +1,16 @@
+# $FreeBSD$
+# Autogenerated - do NOT edit!
+
+DIRDEPS = \
+	include \
+	include/arpa \
+	include/xlocale \
+	lib/libc++ \
+	lib/ncurses/ncursesw \
+
+
+.include <dirdeps.mk>
+
+.if ${DEP_RELDIR} == ${_DEP_RELDIR}
+# local dependencies - needed for -jN in clean tree
+.endif
--- a/lib/libclang_rt/stats_client/Makefile.depend
+++ b/lib/libclang_rt/stats_client/Makefile.depend
@ -0,0 +1,13 @@
+# $FreeBSD$
+# Autogenerated - do NOT edit!
+
+DIRDEPS = \
+	include \
+	lib/libc++ \
+
+
+.include <dirdeps.mk>
+
+.if ${DEP_RELDIR} == ${_DEP_RELDIR}
+# local dependencies - needed for -jN in clean tree
+.endif
--- a/lib/libcompiler_rt/Makefile.inc
+++ b/lib/libcompiler_rt/Makefile.inc
@ -225,9 +225,8 @@ SRCS+=		switchu8.S
 SRCS+=		sync_synchronize.S
 .endif

-# GCC-6.3 on mips32 requires bswap32 built-in.
-.if ${MACHINE_CPUARCH} == "mips"
+# On some archs GCC-6.3 requires bswap32 built-in.
+.if ${MACHINE_CPUARCH} == "mips" || ${MACHINE_CPUARCH} == "sparc64"
 SRCS+=		bswapdi2.c
 SRCS+=		bswapsi2.c
 .endif
-
--- a/lib/libdl/Makefile
+++ b/lib/libdl/Makefile
@ -0,0 +1,15 @@
+# $FreeBSD$
+
+LIB=dl
+SHLIB_MAJOR=1
+
+.PATH:	${SRCTOP}/lib/libc/gen
+CFLAGS+=-I${SRCTOP}/lib/libc/include
+CFLAGS+=-DIN_LIBDL
+LDFLAGS+=-Wl,-F,libc.so.7
+VERSION_DEF=${SRCTOP}/lib/libc/Versions.def
+SYMBOL_MAPS=${.CURDIR}/Symbol.map
+
+SRCS =	dlfcn.c
+
+.include <bsd.lib.mk>
--- a/lib/libdl/Makefile.depend
+++ b/lib/libdl/Makefile.depend
@ -0,0 +1,18 @@
+# $FreeBSD$
+# Autogenerated - do NOT edit!
+
+DIRDEPS = \
+	gnu/lib/csu \
+	gnu/lib/libgcc \
+	include \
+	include/xlocale \
+	lib/${CSU_DIR} \
+	lib/libc \
+	lib/libcompiler_rt \
+
+
+.include <dirdeps.mk>
+
+.if ${DEP_RELDIR} == ${_DEP_RELDIR}
+# local dependencies - needed for -jN in clean tree
+.endif
--- a/lib/libdl/Symbol.map
+++ b/lib/libdl/Symbol.map
@ -0,0 +1,20 @@
+/*
+ * $FreeBSD$
+ */
+
+FBSD_1.0 {
+	dladdr;
+	dlclose;
+	dlerror;
+	dlfunc;
+	dlopen;
+	dlsym;
+	dlvsym;
+	dlinfo;
+	dl_iterate_phdr;
+};
+
+
+FBSD_1.3 {
+	fdlopen;
+};
--- a/lib/libelftc/elftc_version.c
+++ b/lib/libelftc/elftc_version.c
@ -6,5 +6,5 @@
 const char *
 elftc_version(void)
 {
-	return "elftoolchain r3520M";
+	return "elftoolchain r3561M";
 }
--- a/lib/libgcc_s/Version.map
+++ b/lib/libgcc_s/Version.map
@ -48,9 +48,9 @@ global:
 	__moddi3;
 	__modti3;
 	__muldi3;
+	__multi3;
 	__mulvdi3;
 	__mulvsi3;
-	__multi3;
 	__negdi2;
 	__negti2;
 	__negvdi2;
--- a/lib/libifconfig/Makefile.depend
+++ b/lib/libifconfig/Makefile.depend
@ -0,0 +1,13 @@
+# $FreeBSD$
+# Autogenerated - do NOT edit!
+
+DIRDEPS = \
+	include \
+	include/xlocale \
+
+
+.include <dirdeps.mk>
+
+.if ${DEP_RELDIR} == ${_DEP_RELDIR}
+# local dependencies - needed for -jN in clean tree
+.endif
--- a/lib/librss/Makefile.depend
+++ b/lib/librss/Makefile.depend
@ -0,0 +1,18 @@
+# $FreeBSD$
+# Autogenerated - do NOT edit!
+
+DIRDEPS = \
+	gnu/lib/csu \
+	gnu/lib/libgcc \
+	include \
+	include/xlocale \
+	lib/${CSU_DIR} \
+	lib/libc \
+	lib/libcompiler_rt \
+
+
+.include <dirdeps.mk>
+
+.if ${DEP_RELDIR} == ${_DEP_RELDIR}
+# local dependencies - needed for -jN in clean tree
+.endif
--- a/lib/libsysdecode/Makefile.depend
+++ b/lib/libsysdecode/Makefile.depend
@ -74,6 +74,7 @@ DIRDEPS = \
 	lib/libfigpar \
 	lib/libgeom \
 	lib/libgpio \
+	lib/libifconfig \
 	lib/libjail \
 	lib/libkvm \
 	lib/liblzma \
@ -92,6 +93,7 @@ DIRDEPS = \
 	lib/libproc \
 	lib/libprocstat \
 	lib/libradius \
+	lib/librss \
 	lib/librtld_db \
 	lib/libsdp \
 	lib/libsqlite3 \
--- a/libexec/rlogind/rlogind.8
+++ b/libexec/rlogind/rlogind.8
@ -28,7 +28,7 @@
 .\"     @(#)rlogind.8	8.1 (Berkeley) 6/4/93
 .\" $FreeBSD$
 .\"
-.Dd February 9, 2005
+.Dd July 3, 2017
 .Dt RLOGIND 8
 .Os
 .Sh NAME
@ -37,6 +37,15 @@
 .Sh SYNOPSIS
 .Nm
 .Op Fl Daln
+.Sh DEPRECATION NOTICE
+.Nm
+is deprecated and will be removed from future versions of the
+.Fx
+base system.
+If
+.Nm
+is still required, it can be installed from ports or packages
+(net/bsdrcmds).
 .Sh DESCRIPTION
 The
 .Nm
--- a/libexec/rshd/rshd.8
+++ b/libexec/rshd/rshd.8
@ -28,7 +28,7 @@
 .\"     @(#)rshd.8	8.1 (Berkeley) 6/4/93
 .\" $FreeBSD$
 .\"
-.Dd June 4, 1993
+.Dd July 3, 2017
 .Dt RSHD 8
 .Os
 .Sh NAME
@ -37,6 +37,15 @@
 .Sh SYNOPSIS
 .Nm
 .Op Fl aDLln
+.Sh DEPRECATION NOTICE
+.Nm
+is deprecated and will be removed from future versions of the
+.Fx
+base system.
+If
+.Nm
+is still required, it can be installed from ports or packages
+(net/bsdrcmds).
 .Sh DESCRIPTION
 The
 .Nm
--- a/libexec/rtld-elf/rtld.c
+++ b/libexec/rtld-elf/rtld.c
@ -1659,6 +1659,7 @@ find_symdef(unsigned long symnum, const Obj_Entry *refobj,
    const Elf_Sym *ref;
    const Elf_Sym *def;
    const Obj_Entry *defobj;
+    const Ver_Entry *ve;
    SymLook req;
    const char *name;
    int res;
@ -1678,6 +1679,7 @@ find_symdef(unsigned long symnum, const Obj_Entry *refobj,
    name = refobj->strtab + ref->st_name;
    def = NULL;
    defobj = NULL;
+    ve = NULL;

    /*
     * We don't have to do a full scale lookup if the symbol is local.
@ -1694,7 +1696,7 @@ find_symdef(unsigned long symnum, const Obj_Entry *refobj,
 	}
 	symlook_init(&req, name);
 	req.flags = flags;
-	req.ventry = fetch_ventry(refobj, symnum);
+	ve = req.ventry = fetch_ventry(refobj, symnum);
 	req.lockstate = lockstate;
 	res = symlook_default(&req, refobj);
 	if (res == 0) {
@ -1724,7 +1726,8 @@ find_symdef(unsigned long symnum, const Obj_Entry *refobj,
 	}
    } else {
 	if (refobj != &obj_rtld)
-	    _rtld_error("%s: Undefined symbol \"%s\"", refobj->path, name);
+	    _rtld_error("%s: Undefined symbol \"%s%s%s\"", refobj->path, name,
+	      ve != NULL ? "@" : "", ve != NULL ? ve->name : "");
    }
    return def;
 }
@ -3489,7 +3492,8 @@ do_dlsym(void *handle, const char *name, void *retaddr, const Ver_Entry *ve,
 	return (sym);
    }

-    _rtld_error("Undefined symbol \"%s\"", name);
+    _rtld_error("Undefined symbol \"%s%s%s\"", name, ve != NULL ? "@" : "",
+      ve != NULL ? ve->name : "");
    lock_release(rtld_bind_lock, &lockstate);
    LD_UTRACE(UTRACE_DLSYM_STOP, handle, NULL, 0, 0, name);
    return NULL;
@ -5296,14 +5300,14 @@ open_binary_fd(const char *argv0, bool search_in_path)
 		fd = -1;
 		errno = ENOENT;
 		while ((pe = strsep(&pathenv, ":")) != NULL) {
-			if (strlcpy(binpath, pe, sizeof(binpath)) >
+			if (strlcpy(binpath, pe, sizeof(binpath)) >=
 			    sizeof(binpath))
 				continue;
 			if (binpath[0] != '\0' &&
-			    strlcat(binpath, "/", sizeof(binpath)) >
+			    strlcat(binpath, "/", sizeof(binpath)) >=
 			    sizeof(binpath))
 				continue;
-			if (strlcat(binpath, argv0, sizeof(binpath)) >
+			if (strlcat(binpath, argv0, sizeof(binpath)) >=
 			    sizeof(binpath))
 				continue;
 			fd = open(binpath, O_RDONLY | O_CLOEXEC | O_VERIFY);
--- a/release/Makefile
+++ b/release/Makefile
@ -269,7 +269,7 @@ packagesystem: base.txz kernel.txz ${EXTRA_PACKAGES}
 	touch ${.TARGET}

 pkg-stage:
-.if !defined(NOPKG)
+.if !defined(NOPKG) || empty(NOPKG)
 	env PORTSDIR=${PORTSDIR} REPOS_DIR=${.CURDIR}/pkg_repos/ \
 		sh ${.CURDIR}/scripts/pkg-stage.sh
 	mkdir -p ${.OBJDIR}/dvd/packages/repos/
--- a/release/Makefile.mirrors
+++ b/release/Makefile.mirrors
@ -21,7 +21,7 @@ STAGE_TARGETS?=		iso-images-stage
 .endif

 .if (defined(EMBEDDED_TARGET) && !empty(EMBEDDED_TARGET)) || (defined(EMBEDDEDBUILD) && !empty(EMBEDDEDBUILD))
-. if ${TARGET} == "arm" || ${EMBEDDED_TARGET} == "arm"
+. if ${TARGET:Marm*} != "" || ${EMBEDDED_TARGET:Marm*} != ""
 EMBEDDED=		1
 . endif
 .endif
@ -57,7 +57,7 @@ TLD?=			${FTPDIR}/releases
 .endif

 .if defined(EMBEDDED) && !empty(EMBEDDED)
-. if ${TARGET} == "arm" && ${TARGET_ARCH} == "armv6"
+. if ${TARGET:Marm*} != "" && (${TARGET_ARCH} == "armv6" || ${TARGET_ARCH} == "aarch64")
 .  if !defined(BOARDNAME) && empty(BOARDNAME)
 BOARDNAME:=		${KERNCONF}
 .  else
--- a/release/scripts/atlas-upload.sh
+++ b/release/scripts/atlas-upload.sh
@ -27,7 +27,7 @@
 #

 ATLAS_API_URL=''
-ATLAS_UPLOAD_URL='https://binstore.hashicorp.com'
+ATLAS_UPLOAD_URL='https://app.vagrantup.com'
 DESCRIPTION="FreeBSD Snapshot Build"

 usage() {
@ -76,7 +76,7 @@ main () {
 	fi

 	# Check to see if the box exists or create it
-	BOXRESULT=$(/usr/local/bin/curl -s "https://atlas.hashicorp.com/api/v1/box/${USERNAME}/${BOX}?access_token=${KEY}")
+	BOXRESULT=$(/usr/local/bin/curl -s "${ATLAS_UPLOAD_URL}/api/v1/box/${USERNAME}/${BOX}?access_token=${KEY}")
 	if [ $? != 0 ]; then
 		echo "Failed to connect to the API"
 		exit 2;
@ -84,26 +84,26 @@ main () {
 	echo $BOXRESULT | grep "\"name\":\"${BOX}\"" > /dev/null
 	if [ $? != 0 ]; then
 		echo "Creating box: ${BOX}"
-		/usr/local/bin/curl -s https://atlas.hashicorp.com/api/v1/boxes -X POST -d "box[name]=${BOX}" -d "access_token=${KEY}" > /dev/null
-		/usr/local/bin/curl -s https://atlas.hashicorp.com/api/v1/box/${USERNAME}/${BOX} -X PUT -d "box[is_private]=false" -d "access_token=${KEY}" > /dev/null
-		/usr/local/bin/curl -s https://atlas.hashicorp.com/api/v1/box/${USERNAME}/${BOX} -X PUT -d "box[description]='${DESCRIPTION}'" -d "access_token=${KEY}" > /dev/null
+		/usr/local/bin/curl -s ${ATLAS_UPLOAD_URL}/api/v1/boxes -X POST -d "box[name]=${BOX}" -d "access_token=${KEY}" > /dev/null
+		/usr/local/bin/curl -s ${ATLAS_UPLOAD_URL}/api/v1/box/${USERNAME}/${BOX} -X PUT -d "box[is_private]=false" -d "access_token=${KEY}" > /dev/null
+		/usr/local/bin/curl -s ${ATLAS_UPLOAD_URL}/api/v1/box/${USERNAME}/${BOX} -X PUT -d "box[description]='${DESCRIPTION}'" -d "access_token=${KEY}" > /dev/null
 	else
 		echo "Box already exists"
 	fi

 	# Check to see if the version exists or create it
-	VERSIONRESULT=$(/usr/local/bin/curl -s "https://atlas.hashicorp.com/api/v1/box/${USERNAME}/${BOX}/version/${VERSION}?access_token=${KEY}")
+	VERSIONRESULT=$(/usr/local/bin/curl -s "${ATLAS_UPLOAD_URL}/api/v1/box/${USERNAME}/${BOX}/version/${VERSION}?access_token=${KEY}")
 	if [ $? != 0 ]; then
 		echo "Failed to connect to the API"
 		exit 2;
 	fi
-	echo $VERSIONRESULT | grep "\"version\":\"${VERSION}\"" > /dev/null
+	echo $VERSIONRESULT | grep "version/${VERSION}" > /dev/null
 	if [ $? != 0 ]; then
 		echo "Creating version: ${VERSION}"
-		/usr/local/bin/curl -s https://atlas.hashicorp.com/api/v1/box/${USERNAME}/${BOX}/versions -X POST -d "version[version]=${VERSION}" -d "access_token=${KEY}" > /dev/null
-		/usr/local/bin/curl -s https://atlas.hashicorp.com/api/v1/box/${USERNAME}/${BOX}/version/${VERSION} -X PUT -d "version[description]=${DESCRIPTION}" -d "access_token=${KEY}" > /dev/null
-		VERSIONRESULT=$(/usr/local/bin/curl -s "https://atlas.hashicorp.com/api/v1/box/${USERNAME}/${BOX}/version/${VERSION}?access_token=${KEY}")
-		echo $VERSIONRESULT | grep "\"version\":\"${VERSION}\"" > /dev/null
+		/usr/local/bin/curl -s ${ATLAS_UPLOAD_URL}/api/v1/box/${USERNAME}/${BOX}/versions -X POST -d "version[version]=${VERSION}" -d "access_token=${KEY}" > /dev/null
+		/usr/local/bin/curl -s ${ATLAS_UPLOAD_URL}/api/v1/box/${USERNAME}/${BOX}/version/${VERSION} -X PUT -d "version[description]=${DESCRIPTION}" -d "access_token=${KEY}" > /dev/null
+		VERSIONRESULT=$(/usr/local/bin/curl -s "${ATLAS_UPLOAD_URL}/api/v1/box/${USERNAME}/${BOX}/version/${VERSION}?access_token=${KEY}")
+		echo $VERSIONRESULT | grep "version/${VERSION}" > /dev/null
 		if [ $? != 0 ]; then
 			echo "Failed to create version"
 			exit 2
@ -113,37 +113,37 @@ main () {
 	fi

 	# Check to see if the provider exists or create it
-	PROVIDERRESULT=$(/usr/local/bin/curl -s "https://atlas.hashicorp.com/api/v1/box/${USERNAME}/${BOX}/version/${VERSION}/provider/${PROVIDER}?access_token=${KEY}")
+	PROVIDERRESULT=$(/usr/local/bin/curl -s "${ATLAS_UPLOAD_URL}/api/v1/box/${USERNAME}/${BOX}/version/${VERSION}/provider/${PROVIDER}?access_token=${KEY}")
 	if [ $? != 0 ]; then
 		echo "Failed to connect to the API"
 		exit 2;
 	fi
-	echo $PROVIDERRESULT | grep "\"name\":\"${PROVIDER}\"" > /dev/null
+	echo $PROVIDERRESULT | grep "provider/${PROVIDER}" > /dev/null
 	if [ $? != 0 ]; then
 		echo "Creating provider: ${PROVIDER}"
-		/usr/local/bin/curl -s https://atlas.hashicorp.com/api/v1/box/${USERNAME}/${BOX}/version/${VERSION}/providers -X POST -d "provider[name]=${PROVIDER}" -d "access_token=${KEY}" > /dev/null
+		/usr/local/bin/curl -s ${ATLAS_UPLOAD_URL}/api/v1/box/${USERNAME}/${BOX}/version/${VERSION}/providers -X POST -d "provider[name]=${PROVIDER}" -d "access_token=${KEY}" > /dev/null
 	else
 		echo "Provider already exists"
 	fi

 	# Request an upload token
-	TOKENRESULT=$(/usr/local/bin/curl -s "https://atlas.hashicorp.com/api/v1/box/${USERNAME}/${BOX}/version/${VERSION}/provider/${PROVIDER}/upload?access_token=${KEY}")
+	TOKENRESULT=$(/usr/local/bin/curl -s "${ATLAS_UPLOAD_URL}/api/v1/box/${USERNAME}/${BOX}/version/${VERSION}/provider/${PROVIDER}/upload?access_token=${KEY}")
 	if [ $? != 0 ]; then
 		echo "Failed to get the token from the API"
 		exit 2;
 	fi
-	echo ${TOKENRESULT} | grep -E "\"(token|upload_path)\":" > /dev/null
+	echo ${TOKENRESULT} | grep -E "upload_path" > /dev/null
 	if [ $? != 0 ]; then
 		echo "No token found from the API"
 		exit 2
 	else
 		TOKEN=$(echo $TOKENRESULT | sed -e 's/.*token":"//' -e 's/.*upload_path":"//' -e 's/}$//g' -e 's/"//g')
 		echo "Uploading to Atlas"
-		UPLOADRESULT=$(/usr/local/bin/curl -s -X PUT --upload-file ${FILE} ${TOKEN})
+		UPLOADRESULT=$(/usr/local/bin/curl -s -X PUT --upload-file ${FILE} "${TOKEN}")

 		# Validate the Upload
 		echo "Validating"
-		VALIDRESULT=$(/usr/local/bin/curl -s "https://atlas.hashicorp.com/api/v1/box/${USERNAME}/${BOX}/version/${VERSION}/provider/${PROVIDER}?access_token=${KEY}")
+		VALIDRESULT=$(/usr/local/bin/curl -s "${ATLAS_UPLOAD_URL}/api/v1/box/${USERNAME}/${BOX}/version/${VERSION}/provider/${PROVIDER}?access_token=${KEY}")
 		HOSTED_TOKEN=$(echo $VALIDRESULT | sed -e 's/.*"hosted"://' -e 's/,.*$//')
 		if [ ! -z ${TOKEN} -a "${HOSTED_TOKEN}" != "true" ]; then
 			echo "Upload failed, try again."
@ -152,7 +152,7 @@ main () {

 		# Release the version
 		echo "Releasing ${VERSION} of ${BOX} in Atlas"
-		/usr/local/bin/curl -s https://atlas.hashicorp.com/api/v1/box/${USERNAME}/${BOX}/version/${VERSION}/release -X PUT -d "access_token=${KEY}" > /dev/null
+		/usr/local/bin/curl -s ${ATLAS_UPLOAD_URL}/api/v1/box/${USERNAME}/${BOX}/version/${VERSION}/release -X PUT -d "access_token=${KEY}" > /dev/null
 	fi
 }

--- a/sbin/Makefile
+++ b/sbin/Makefile
@ -93,8 +93,6 @@ SUBDIR.${MK_TESTS}+=	tests

 .include <bsd.arch.inc.mk>

-SUBDIR:=	${SUBDIR:O}
-
 SUBDIR_PARALLEL=

 .include <bsd.subdir.mk>
--- a/sbin/camcontrol/camcontrol.c
+++ b/sbin/camcontrol/camcontrol.c
--- a/sbin/init/init.c
+++ b/sbin/init/init.c
@ -1271,8 +1271,8 @@ new_session(session_t *sprev, struct ttyent *typ)

 	sp->se_flags |= SE_PRESENT;

-	sp->se_device = malloc(sizeof(_PATH_DEV) + strlen(typ->ty_name));
-	sprintf(sp->se_device, "%s%s", _PATH_DEV, typ->ty_name);
+	if (asprintf(&sp->se_device, "%s%s", _PATH_DEV, typ->ty_name) < 0)
+		err(1, "asprintf");

 	/*
 	 * Attempt to open the device, if we get "device not configured"
@ -1315,8 +1315,8 @@ setupargv(session_t *sp, struct ttyent *typ)
 		free(sp->se_getty_argv_space);
 		free(sp->se_getty_argv);
 	}
-	sp->se_getty = malloc(strlen(typ->ty_getty) + strlen(typ->ty_name) + 2);
-	sprintf(sp->se_getty, "%s %s", typ->ty_getty, typ->ty_name);
+	if (asprintf(&sp->se_getty, "%s %s", typ->ty_getty, typ->ty_name) < 0)
+		err(1, "asprintf");
 	sp->se_getty_argv_space = strdup(sp->se_getty);
 	sp->se_getty_argv = construct_argv(sp->se_getty_argv_space);
 	if (sp->se_getty_argv == NULL) {
@ -1429,7 +1429,7 @@ start_window_system(session_t *sp)
 	if (sp->se_type) {
 		/* Don't use malloc after fork */
 		strcpy(term, "TERM=");
-		strncat(term, sp->se_type, sizeof(term) - 6);
+		strlcat(term, sp->se_type, sizeof(term));
 		env[0] = term;
 		env[1] = 0;
 	}
@ -1493,7 +1493,7 @@ start_getty(session_t *sp)
 	if (sp->se_type) {
 		/* Don't use malloc after fork */
 		strcpy(term, "TERM=");
-		strncat(term, sp->se_type, sizeof(term) - 6);
+		strlcat(term, sp->se_type, sizeof(term));
 		env[0] = term;
 		env[1] = 0;
 	} else
--- a/sbin/mount/mount.c
+++ b/sbin/mount/mount.c
@ -398,7 +398,9 @@ main(int argc, char *argv[])
 					have_fstab = 1;
 					mntfromname = mntbuf->f_mntfromname;
 				} else if (argv[0][0] == '/' &&
-				    argv[0][1] == '\0') {
+				    argv[0][1] == '\0' &&
+				    strcmp(fs->fs_vfstype,
+				    mntbuf->f_fstypename) == 0) {
 					fs = getfsfile("/");
 					have_fstab = 1;
 					mntfromname = fs->fs_spec;
--- a/sbin/newfs/newfs.8
+++ b/sbin/newfs/newfs.8
@ -28,7 +28,7 @@
 .\"     @(#)newfs.8	8.6 (Berkeley) 5/3/95
 .\" $FreeBSD$
 .\"
-.Dd July 15, 2015
+.Dd July 7, 2017
 .Dt NEWFS 8
 .Os
 .Sh NAME
@ -79,11 +79,9 @@ The following options define the general layout policies:
 .It Fl E
 Erase the content of the disk before making the filesystem.
 The reserved area in front of the superblock (for bootcode) will not be erased.
-.Pp
-This option is only relevant for flash based storage devices that use
-wear-leveling algorithms.
-.Pp
-Erasing may take a long time as it writes to every sector on the disk.
+Erasing is only relevant to flash-memory or thinly provisioned devices.
+Erasing may take a long time.
+If the device does not support BIO_DELETE, the command will fail.
 .It Fl J
 Enable journaling on the new file system via gjournal.
 See
@ -264,9 +262,11 @@ Turn on the TRIM enable flag.
 If enabled, and if the underlying device supports the BIO_DELETE
 command, the file system will send a delete request to the underlying
 device for each freed block.
-The trim enable flag is typically set when the underlying device
-uses flash-memory as the device can use the delete command to
-pre-zero or at least avoid copying blocks that have been deleted.
+The trim enable flag is typically set for flash-memory devices to
+reduce write amplification which reduces wear on write-limited
+flash-memory and often improves long-term performance.
+Thinly provisioned storage also benefits by returning unused blocks to
+the global pool.
 .El
 .Pp
 The following options override the standard sizes for the disk geometry.
--- a/sbin/savecore/savecore.c
+++ b/sbin/savecore/savecore.c
@ -119,7 +119,7 @@ printheader(xo_handle_t *xo, const struct kerneldumpheader *h, const char *devic
 	xo_emit_h(xo, "{P:  }{Lwc:Dumptime}{:dumptime/%s}", ctime(&t));
 	xo_emit_h(xo, "{P:  }{Lwc:Hostname}{:hostname/%s}\n", h->hostname);
 	xo_emit_h(xo, "{P:  }{Lwc:Magic}{:magic/%s}\n", h->magic);
-	xo_emit_h(xo, "{P:  }{Lwc:Version String}{:version_string/%s}", h->versionstring);
+	xo_emit_h(xo, "{P:  }{Lwc:Version String}{:version_string/%s}\n", h->versionstring);
 	xo_emit_h(xo, "{P:  }{Lwc:Panic String}{:panic_string/%s}\n", h->panicstring);
 	xo_emit_h(xo, "{P:  }{Lwc:Dump Parity}{:dump_parity/%u}\n", h->parity);
 	xo_emit_h(xo, "{P:  }{Lwc:Bounds}{:bounds/%d}\n", bounds);
@ -334,6 +334,13 @@ check_space(const char *savedir, off_t dumpsize, int bounds)
 	return (1);
 }

+static bool
+compare_magic(const struct kerneldumpheader *kdh, const char *magic)
+{
+
+	return (strncmp(kdh->magic, magic, sizeof(kdh->magic)) == 0);
+}
+
 #define BLOCKSIZE (1<<12)
 #define BLOCKMASK (~(BLOCKSIZE-1))

@ -564,7 +571,7 @@ DoFile(const char *savedir, const char *device)
 	}
 	memcpy(&kdhl, temp, sizeof(kdhl));
 	istextdump = 0;
-	if (strncmp(kdhl.magic, TEXTDUMPMAGIC, sizeof kdhl) == 0) {
+	if (compare_magic(&kdhl, TEXTDUMPMAGIC)) {
 		if (verbose)
 			printf("textdump magic on last dump header on %s\n",
 			    device);
@ -578,8 +585,7 @@ DoFile(const char *savedir, const char *device)
 			if (force == 0)
 				goto closefd;
 		}
-	} else if (memcmp(kdhl.magic, KERNELDUMPMAGIC, sizeof kdhl.magic) ==
-	    0) {
+	} else if (compare_magic(&kdhl, KERNELDUMPMAGIC)) {
 		if (dtoh32(kdhl.version) != KERNELDUMPVERSION) {
 			syslog(LOG_ERR,
 			    "unknown version (%d) in last dump header on %s",
@ -598,8 +604,7 @@ DoFile(const char *savedir, const char *device)
 		if (force == 0)
 			goto closefd;

-		if (memcmp(kdhl.magic, KERNELDUMPMAGIC_CLEARED,
-			    sizeof kdhl.magic) == 0) {
+		if (compare_magic(&kdhl, KERNELDUMPMAGIC_CLEARED)) {
 			if (verbose)
 				printf("forcing magic on %s\n", device);
 			memcpy(kdhl.magic, KERNELDUMPMAGIC,
--- a/share/man/man4/Makefile
+++ b/share/man/man4/Makefile
@ -141,6 +141,7 @@ MAN=	aac.4 \
 	edsc.4 \
 	ehci.4 \
 	em.4 \
+	ena.4 \
 	enc.4 \
 	epair.4 \
 	esp.4 \
--- a/share/man/man4/dtrace_lockstat.4
+++ b/share/man/man4/dtrace_lockstat.4
@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd June 11, 2017
+.Dd July 3, 2017
 .Dt DTRACE_LOCKSTAT 4
 .Os
 .Sh NAME
@ -54,198 +54,247 @@
 .Sh DESCRIPTION
 The DTrace
 .Nm lockstat
-provider allows the tracing of events related to locking on FreeBSD.
+provider allows the tracing of events related to locking on
+.Fx .
 .Pp
 The
 .Nm lockstat
-provider contains DTrace probe for inspecting the kernel's lock
+provider contains DTrace probes for inspecting the kernel's lock
 state transitions.
-Tracepoints exist for several types of kernel
-locking primitives, including mutexes, spin, reader-writer,
-and shared exclusive locks.
-An attempt has been made to provide a regular and easy to understand
-interface to the
+Probes exist for the
+.Xr mutex 9 ,
+.Xr rwlock 9
+and
+.Xr sx 9
+lock types.
+The
+.Xr lockstat 1
+utility can be used to collect and display data collected from the
 .Nm lockstat
 provider.
-Each type of lock has an
+Each type of lock has
 .Fn acquire
 and
 .Fn release
-probe which exposes the lock structure that is being operated upon.
-.Pp
-Whenever an MTX_DEF mutex is acquired the
-.Fn lockstat:::adaptive-acquire
-probe fires.
-The only argument is a pointer to the lock structure which describes
-the lock that is being acquired.
+probes which expose the lock structure being operated upon,
+as well as probes which fire when a thread contends with other threads
+for ownership of a lock.
 .Pp
 The
+.Fn lockstat:::adaptive-acquire
+and
 .Fn lockstat:::adaptive-release
-probe fires whenever an adaptive lock is released.
+probes fire when an
+.Dv MTX_DEF
+.Xr mutex 9
+is acquired and released, respectively.
 The only argument is a pointer to the lock structure which describes
-the lock that is being released.
+the lock being acquired or released.
 .Pp
 The
 .Fn lockstat:::adaptive-spin
-probe fires when an adaptive lock is acquired.
+probe fires when a thread spins while waiting for a
+.Dv MTX_DEF
+.Xr mutex 9
+to be released by another thread.
 The first argument is a pointer to the lock structure that describes
 the lock and the second argument is the amount of time,
-in nanoseconds,
-that the mutex spent spinning.
-.Pp
+in nanoseconds, that the mutex spent spinning.
 The
 .Fn lockstat:::adaptive-block
-probe fires whenever thread takes itself off of the CPU
-while trying to acquire the lock.
+probe fires when a thread takes itself off the CPU while trying to acquire an
+.Dv MTX_DEF
+.Xr mutex 9
+that is owned by another thread.
 The first argument is a pointer to the lock structure that describes
 the lock and the second argument is the length of time,
-in nanoseconds,
-that the waiting thread was blocked.
+in nanoseconds, that the waiting thread was blocked.
 The
 .Fn lockstat:::adaptive-block
-probe fires only after the lock has been successfully acquired,
-after the adaptive-acquire probe fires.
-.Pp
-Whenever a spin mutex is acquired the
-.Fn lockstat:::spin-acquire
+and
+.Fn lockstat:::adaptive-spin
+probes fire only after the lock has been successfully acquired,
+and in particular, after the
+.Fn lockstat:::adaptive-acquire
 probe fires.
-The only argument is a pointer to the lock structure which describes
-the lock that is being acquired.
 .Pp
 The
+.Fn lockstat:::spin-acquire
+and
 .Fn lockstat:::spin-release
-probe fires whenever a spin mutex is released.
+probes fire when a
+.Dv MTX_SPIN
+.Xr mutex 9
+is acquired and released, respectively.
 The only argument is a pointer to the lock structure which describes
-the lock that is being released.
+the lock being acquired or released.
 .Pp
 The
 .Fn lockstat:::spin-spin
-probe fires when a thread stops spinning waiting for a spin mutex.
+probe fires when a thread spins while waiting for a
+.Dv MTX_SPIN
+.Xr mutex 9
+to be released by another thread.
 The first argument is a pointer to the lock structure that describes
 the lock and the second argument is the length of the time
 spent spinning, in nanoseconds.
-.Pp
-Whenever a reader-writer lock is acquired the
-.Fn lockstat:::rw-acquire
+The
+.Fn lockstat:::spin-spin
+probe fires only after the lock has been successfully acquired,
+and in particular, after the
+.Fn lockstat:::spin-acquire
 probe fires.
-The only argument is a pointer to the structure which describes
-the lock that is being acquired.
 .Pp
 The
+.Fn lockstat:::rw-acquire
+and
 .Fn lockstat:::rw-release
-probe fires whenever a reader-writer lock is released.
+probes fire when a
+.Xr rwlock 9
+is acquired and released, respectively.
+The first argument is a pointer to the structure which describes
+the lock being acquired.
+The second argument is
+.Dv 0
+if the lock is being acquired or released as a writer, and
+.Dv 1
+if it is being acquired or released as a reader.
 .Pp
 The
 .Fn lockstat:::rw-block
-probe fires whenever a thread removes itself from the CPU while
-waiting to acquire the lock.
-The first argument is a pointer to the lock structure that describes
-the lock and the second argument is the length of time,
-in nanoseconds,
-that the waiting thread was blocked.
-The third argument is 1 if the thread was were spinning while
-trying to acquire a read lock,
-otherwise it will be 0 indicating that we were spinning for the write lock.
-The fourth argument is 1 if we were waiting for a reader to release the lock,
-otherwise it will be 0 indicating that we were waiting for a writer
-to release the lock.
-The fifth argument is the number of readers that held the lock when
-we started spinning; in particular, argument 5 is non-zero only
-if the fourth argument is 1.
-.Pp
+probe fires when a thread removes itself from the CPU while
+waiting to acquire a
+.Xr rwlock 9 .
 The
 .Fn lockstat:::rw-spin
-probe fires when a reader-writer lock takes itself off the CPU
-while waiting for the lock.
+probe fires when a thread spins while waiting to acquire a
+.Xr rwlock 9 .
+Both probes take the same set of arguments.
 The first argument is a pointer to the lock structure that describes
-the lock and the second argument returns an integer count of the
-number of spins that were completed.
+the lock.
+The second argument is the length of time, in nanoseconds,
+that the waiting thread was off the CPU or spinning for the lock.
+The third argument is
+.Dv 0
+if the thread is attempting to acquire the lock as a writer, and
+.Dv 1
+if the thread is attempting to acquire the lock as a reader.
+The fourth argument is
+.Dv 0
+if the thread is waiting for a writer to release the lock, and
+.Dv 1
+if the thread is waiting for a reader to release the lock.
+The fifth argument is the number of readers that held the lock when
+the thread first attempted to acquire the lock.
+This argument will be
+.Dv 0
+if the fourth argument is
+.Dv 0 .
 .Pp
 The
 .Fn lockstat:::rw-upgrade
-probe fires whenever a thread tries to upgrade a lock from a
+probe fires when a thread successfully upgrades a held
+.Xr rwlock 9
 read lock to a write lock.
-The only argument is a pointer to the structure which describes
-the lock that is being acquired.
-.Pp
+The
 .Fn lockstat:::rw-downgrade
-probe fires whenever a thread tries downgrades a lock from a
-read and write lock to a read lock.
+probe first when a thread downgrades a held
+.Xr rwlock 9
+write lock to a read lock.
 The only argument is a pointer to the structure which describes
-the lock that is being acquired.
-.Pp
-Whenever a shared-exclusive lock is acquired the
-.Fn lockstat:::sx-acquire
-probe fires.
-The only argument is a pointer to the structure which describes
-the lock that is being acquired.
+the lock being acquired.
 .Pp
 The
+.Fn lockstat:::sx-acquire
+and
 .Fn lockstat:::sx-release
-probe fires whenever an adaptive lock is released.
-The only argument is a pointer to the lock structure which describes
-the lock that is being released.
+probes fire when a
+.Xr sx 9
+is acquired and released, respectively.
+The first argument is a pointer to the structure which describes
+the lock being acquired.
+The second argument is
+.Dv 0
+if the shared lock is being acquired or released, and
+.Dv 1
+if the exclusive lock is being acquired or released.
 .Pp
 The
 .Fn lockstat:::sx-block
-probe fires whenever a thread takes itself off the CPU while
-waiting for the lock.
-The first argument is a pointer to the structure that describes
-the lock and the second argument is the length of time,
-in nanoseconds,
-that the waiting thread was blocked.
-The third argument is 1 if the thread was were spinning while
-trying to acquire a read lock,
-otherwise it will be 0 indicating that we were spinning for the write lock.
-The fourth argument is 1 if we were waiting for a reader to release the lock,
-otherwise it will be 0 indicating that we were waiting for a writer
-to release the lock.
-The fifth argument is the number of readers that held the lock when
-we started spinning; in particular, argument 5 is non-zero only
-if the fourth argument is 1.
-.Pp
+probe fires when a thread takes itself off the CPU while
+waiting to acquire a
+.Xr sx 9 .
 The
 .Fn lockstat:::sx-spin
-probe fires when a thread takes itself off of the CPU while
-waiting for the lock.
-The first argument is a pointer to the structure that describes
-the lock and the second argument returns an integer count of the
-number of spins that were completed.
+probe first when a thread spins while waiting to acquire a
+.Xr sx 9 .
+Both probes take the same set of arguments.
+The first argument is a pointer to the lock structure that describes
+the lock.
+The second argument is the length of time, in nanoseconds,
+that the waiting thread was off the CPU or spinning for the lock.
+The third argument is
+.Dv 0
+if the thread is attempting to acquire the lock as a writer, and
+.Dv 1
+if the thread is attempting to acquire the lock as a reader.
+The fourth argument is
+.Dv 0
+if the thread is waiting for a writer to release the lock, and
+.Dv 1
+if the thread is waiting for a reader to release the lock.
+The fifth argument is the number of readers that held the lock when
+the thread first attempted to acquire the lock.
+This argument will be
+.Dv 0
+if the fourth argument is
+.Dv 0 .
 .Pp
 The
 .Fn lockstat:::sx-upgrade
-probe fires whenever a thread tries to upgrade a lock from a
-shared lock to a shared-exclusive lock.
+probe fires when a thread successfully upgrades a held
+.Xr sx 9
+shared lock to an exclusive lock.
 The only argument is a pointer to the structure which describes
-the lock that is being upgraded.
-.Pp
+the lock being acquired.
 The
 .Fn lockstat:::sx-downgrade
-probe fires whenever a thread downgrades a lock from a
-shared-exclusive lock to a shared lock.
-The only argument is a pointer to the structure which describes
-the lock that is being downgraded.
+probe fires when a thread downgrades a held
+.Xr sx 9
+exclusive lock to a shared lock.
 .Pp
 The
 .Fn lockstat:::thread-spin
-probe fires whenever a thread spins on a spin lock.
+probe fires when a thread spins on a thread lock, which is a specialized
+.Dv MTX_SPIN
+.Xr mutex 9 .
 The first argument is a pointer to the structure that describes
 the lock and the second argument is the length of time,
-in nanoseconds,
-that the thread was spinning.
+in nanoseconds, that the thread was spinning.
 .Sh SEE ALSO
 .Xr dtrace 1 ,
 .Xr lockstat 1 ,
 .Xr locking 9 ,
-.Xr SDT 9
+.Xr mutex 9 ,
+.Xr rwlock 9 ,
+.Xr SDT 9 ,
+.Xr sx 9
 .Sh HISTORY
 The
 .Nm lockstat
-provider first appeared in OpenSolaris.
-The FreeBSD implementation of the
+provider first appeared in Solaris.
+The
+.Fx
+implementation of the
 .Nm lockstat
 provider first appeared in
 .Fx 9.
 .Sh AUTHORS
 This manual page was written by
 .An George V. Neville-Neil Aq Mt gnn@FreeBSD.org .
+.Sh BUGS
+Probes for
+.Xr lockmgr 9
+and
+.Xr rmlock 9
+locks have not yet been added.
--- a/Show More
+++ b/Show More