19 files changed, 544 insertions, 34 deletions

diff --git a/usr/src/lib/libc/amd64/Makefile b/usr/src/lib/libc/amd64/Makefile
index f4b79eedb6..d9f4e5ddc2 100644
--- a/usr/src/lib/libc/amd64/Makefile
+++ b/usr/src/lib/libc/amd64/Makefile
@@ -855,13 +855,16 @@ PORTSYS=			\
 	chmod.o			\
 	chown.o			\
 	corectl.o		\
+	epoll.o			\
 	exacctsys.o		\
 	execl.o			\
 	execle.o		\
 	execv.o			\
+	eventfd.o		\
 	fcntl.o			\
 	getpagesizes.o		\
 	getpeerucred.o		\
+	inotify.o		\
 	inst_sync.o		\
 	issetugid.o		\
 	label.o			\
diff --git a/usr/src/lib/libc/i386/Makefile.com b/usr/src/lib/libc/i386/Makefile.com
index bf9a9f5536..0c7b9b2c1b 100644
--- a/usr/src/lib/libc/i386/Makefile.com
+++ b/usr/src/lib/libc/i386/Makefile.com
@@ -895,6 +895,8 @@ PORTSYS=			\
 	chmod.o			\
 	chown.o			\
 	corectl.o		\
+	epoll.o			\
+	eventfd.o		\
 	exacctsys.o		\
 	execl.o			\
 	execle.o		\
@@ -902,6 +904,7 @@ PORTSYS=			\
 	fcntl.o			\
 	getpagesizes.o		\
 	getpeerucred.o		\
+	inotify.o		\
 	inst_sync.o		\
 	issetugid.o		\
 	label.o			\
diff --git a/usr/src/lib/libc/inc/thr_inlines.h b/usr/src/lib/libc/inc/thr_inlines.h
index f7cdc6a6bd..66d811f25b 100644
--- a/usr/src/lib/libc/inc/thr_inlines.h
+++ b/usr/src/lib/libc/inc/thr_inlines.h
@@ -47,17 +47,19 @@
 extern __GNU_INLINE ulwp_t *
 _curthread(void)
 {
-#if defined(__amd64)
 	ulwp_t *__value;
-	__asm__ __volatile__("movq %%fs:0, %0" : "=r" (__value));
+	__asm__ __volatile__(
+#if defined(__amd64)
+	    "movq %%fs:0, %0\n\t"
 #elif defined(__i386)
-	ulwp_t *__value;
-	__asm__ __volatile__("movl %%gs:0, %0" : "=r" (__value));
+	    "movl %%gs:0, %0\n\t"
 #elif defined(__sparc)
-	register ulwp_t *__value __asm__("g7");
+	    ".register %%g7, #scratch\n\t"
+	    "mov %%g7, %0\n\t"
 #else
 #error	"port me"
 #endif
+	    : "=r" (__value));
 	return (__value);
 }
 
diff --git a/usr/src/lib/libc/inc/thr_uberdata.h b/usr/src/lib/libc/inc/thr_uberdata.h
index de0d4a6b05..a58eaf915f 100644
--- a/usr/src/lib/libc/inc/thr_uberdata.h
+++ b/usr/src/lib/libc/inc/thr_uberdata.h
@@ -932,6 +932,7 @@ typedef struct uberdata {
 	int	ndaemons;	/* total number of THR_DAEMON threads/lwps */
 	pid_t	pid;		/* the current process's pid */
 	void	(*sigacthandler)(int, siginfo_t *, void *);
+	int	(*setctxt)(const ucontext_t *);
 	ulwp_t	*lwp_stacks;
 	ulwp_t	*lwp_laststack;
 	int	nfreestack;
@@ -944,6 +945,7 @@ typedef struct uberdata {
 	robust_t	**robustlocks;	/* table of registered robust locks */
 	robust_t	*robustlist;	/* list of registered robust locks */
 	char	*progname;	/* the basename of the program, from argv[0] */
+	char	*ub_broot;	/* the root of the native code in the brand */
 	struct uberdata **tdb_bootstrap;
 	tdb_t	tdb;		/* thread debug interfaces (for libc_db) */
 } uberdata_t;
@@ -1144,6 +1146,7 @@ typedef struct uberdata32 {
 	int		ndaemons;
 	int		pid;
 	caddr32_t	sigacthandler;
+	caddr32_t	setctxt;
 	caddr32_t	lwp_stacks;
 	caddr32_t	lwp_laststack;
 	int		nfreestack;
@@ -1243,6 +1246,7 @@ extern	void	rwl_free(ulwp_t *);
 extern	void	heldlock_exit(void);
 extern	void	heldlock_free(ulwp_t *);
 extern	void	sigacthandler(int, siginfo_t *, void *);
+extern	int	setctxt(const ucontext_t *);
 extern	void	signal_init(void);
 extern	int	sigequalset(const sigset_t *, const sigset_t *);
 extern	void	mutex_setup(void);
diff --git a/usr/src/lib/libc/port/gen/getauxv.c b/usr/src/lib/libc/port/gen/getauxv.c
index 500675719c..4356a01392 100644
--- a/usr/src/lib/libc/port/gen/getauxv.c
+++ b/usr/src/lib/libc/port/gen/getauxv.c
@@ -24,9 +24,8 @@
  * Use is subject to license terms.
  */
 
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
-
 #include "lint.h"
+#include "thr_uberdata.h"
 #include <libc.h>
 #include <fcntl.h>
 #include <stdlib.h>
@@ -38,6 +37,7 @@
 #include <thread.h>
 #include <synch.h>
 #include <atomic.h>
+#include <limits.h>
 
 static mutex_t auxlock = DEFAULTMUTEX;
 
@@ -59,11 +59,20 @@ _getaux(int type)
 	if (auxb == NULL) {
 		lmutex_lock(&auxlock);
 		if (auxb == NULL) {
+			uberdata_t *udp = curthread->ul_uberdata;
 			struct stat statb;
 			auxv_t *buf = NULL;
+			char *path = "/proc/self/auxv";
+			char pbuf[PATH_MAX];
 			int fd;
 
-			if ((fd = open("/proc/self/auxv", O_RDONLY)) != -1 &&
+			if (udp->ub_broot != NULL) {
+				(void) snprintf(pbuf, sizeof (pbuf),
+				    "%s/proc/self/auxv", udp->ub_broot);
+				path = pbuf;
+			}
+
+			if ((fd = open(path, O_RDONLY)) != -1 &&
 			    fstat(fd, &statb) != -1)
 				buf = libc_malloc(
 				    statb.st_size + sizeof (auxv_t));
diff --git a/usr/src/lib/libc/port/gen/getlogin.c b/usr/src/lib/libc/port/gen/getlogin.c
index fadf3e055b..e4b2f62dc3 100644
--- a/usr/src/lib/libc/port/gen/getlogin.c
+++ b/usr/src/lib/libc/port/gen/getlogin.c
@@ -35,6 +35,7 @@
 #include "lint.h"
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <sys/sysmacros.h>
 #include <fcntl.h>
 #include <string.h>
 #include <stdlib.h>
diff --git a/usr/src/lib/libc/port/gen/psiginfo.c b/usr/src/lib/libc/port/gen/psiginfo.c
index 1675db36ee..6775fef969 100644
--- a/usr/src/lib/libc/port/gen/psiginfo.c
+++ b/usr/src/lib/libc/port/gen/psiginfo.c
@@ -27,8 +27,6 @@
 /*	Copyright (c) 1988 AT&T	*/
 /*	  All Rights Reserved  	*/
 
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
-
 /*
  * Print the name of the siginfo indicated by "sig", along with the
  * supplied message
@@ -50,16 +48,23 @@ psiginfo(siginfo_t *sip, char *s)
 {
 	char buf[256];
 	char *c;
+	size_t l = 0;
 	const struct siginfolist *listp;
 
-	if (sip == 0)
+	if (sip == NULL)
 		return;
 
+	if (s != NULL && *s != '\0') {
+		l = snprintf(buf, sizeof (buf), _libc_gettext("%s : "), s);
+		if (l > sizeof (buf))
+			l = sizeof (buf);
+	}
+
 
 	if (sip->si_code <= 0) {
-		(void) snprintf(buf, sizeof (buf),
-		    _libc_gettext("%s : %s ( from process  %d )\n"),
-		    s, strsignal(sip->si_signo), sip->si_pid);
+		(void) snprintf(buf + l, sizeof (buf) - l,
+		    _libc_gettext("%s ( from process  %d )\n"),
+		    strsignal(sip->si_signo), sip->si_pid);
 	} else if (((listp = &_sys_siginfolist[sip->si_signo-1]) != NULL) &&
 	    sip->si_code <= listp->nsiginfo) {
 		c = _libc_gettext(listp->vsiginfo[sip->si_code-1]);
@@ -68,21 +73,20 @@ psiginfo(siginfo_t *sip, char *s)
 		case SIGBUS:
 		case SIGILL:
 		case SIGFPE:
-			(void) snprintf(buf, sizeof (buf),
-			    _libc_gettext("%s : %s ( [%p] %s)\n"),
-			    s, strsignal(sip->si_signo),
+			(void) snprintf(buf + l, sizeof (buf) - l,
+			    _libc_gettext("%s ( [%p] %s)\n"),
+			    strsignal(sip->si_signo),
 			    sip->si_addr, c);
 			break;
 		default:
-			(void) snprintf(buf, sizeof (buf),
-			    _libc_gettext("%s : %s (%s)\n"),
-			    s, strsignal(sip->si_signo), c);
+			(void) snprintf(buf + l, sizeof (buf) - l,
+			    _libc_gettext("%s (%s)\n"),
+			    strsignal(sip->si_signo), c);
 			break;
 		}
 	} else {
-		(void) snprintf(buf, sizeof (buf),
-		    _libc_gettext("%s : %s\n"),
-		    s, strsignal(sip->si_signo));
+		(void) snprintf(buf + l, sizeof (buf) - l,
+		    _libc_gettext("%s\n"), strsignal(sip->si_signo));
 	}
 	(void) write(2, buf, strlen(buf));
 }
diff --git a/usr/src/lib/libc/port/gen/psignal.c b/usr/src/lib/libc/port/gen/psignal.c
index 201beaacd7..2a61cd9610 100644
--- a/usr/src/lib/libc/port/gen/psignal.c
+++ b/usr/src/lib/libc/port/gen/psignal.c
@@ -37,8 +37,6 @@
  * contributors.
  */
 
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
-
 /*
  * Print the name of the signal indicated by "sig", along with the
  * supplied message
@@ -61,14 +59,15 @@ void
 psignal(int sig, const char *s)
 {
 	char *c;
-	size_t n;
+	size_t n = 0;
 	char buf[256];
 
 	if (sig < 0 || sig >= NSIG)
 		sig = 0;
 	c = strsignal(sig);
-	n = strlen(s);
-	if (n) {
+	if (s != NULL)
+		n = strlen(s);
+	if (n != 0) {
 		(void) snprintf(buf, sizeof (buf), "%s: %s\n", s, c);
 	} else {
 		(void) snprintf(buf, sizeof (buf), "%s\n", c);
diff --git a/usr/src/lib/libc/port/mapfile-vers b/usr/src/lib/libc/port/mapfile-vers
index 8b1fe1363b..68eedf25b0 100644
--- a/usr/src/lib/libc/port/mapfile-vers
+++ b/usr/src/lib/libc/port/mapfile-vers
@@ -2819,8 +2819,16 @@ $endif
 	_dgettext;
 	_doprnt;
 	_doscan;
+	epoll_create;
+	epoll_create1;
+	epoll_ctl;
+	epoll_wait;
+	epoll_pwait;
 	_errfp;
 	_errxfp;
+	eventfd;
+	eventfd_read;
+	eventfd_write;
 	exportfs;
 	_F_cplx_div;
 	_F_cplx_div_ix;
@@ -2864,6 +2872,10 @@ $endif
 	__idmap_unreg;
 	__init_daemon_priv;
 	__init_suid_priv;
+	inotify_init;
+	inotify_init1;
+	inotify_add_watch;
+	inotify_rm_watch;
 	_insert;
 	inst_sync;
 	_iswctype;
@@ -3057,6 +3069,7 @@ $endif
 	zone_list;
 	zone_list_datalink;
 	zonept;
+	zone_get_nroot;
 	zone_remove_datalink;
 	zone_setattr;
 	zone_shutdown;
diff --git a/usr/src/lib/libc/port/sys/epoll.c b/usr/src/lib/libc/port/sys/epoll.c
new file mode 100644
index 0000000000..93379b583e
--- /dev/null
+++ b/usr/src/lib/libc/port/sys/epoll.c
@@ -0,0 +1,207 @@
+/*
+ * This file and its contents are supplied under the terms of the
+ * Common Development and Distribution License ("CDDL"), version 1.0.
+ * You may only use this file in accordance with the terms of version
+ * 1.0 of the CDDL.
+ *
+ * A full copy of the text of the CDDL should have accompanied this
+ * source.  A copy of the CDDL is also available via the Internet at
+ * http://www.illumos.org/license/CDDL.
+ */
+
+/*
+ * Copyright (c) 2014, Joyent, Inc.  All rights reserved.
+ */
+
+#include <sys/types.h>
+#include <sys/epoll.h>
+#include <sys/devpoll.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <poll.h>
+
+/*
+ * Events that match their epoll(7) equivalents.
+ */
+#if EPOLLIN != POLLIN
+#error value of EPOLLIN does not match value of POLLIN
+#endif
+
+#if EPOLLPRI != POLLPRI
+#error value of EPOLLPRI does not match value of POLLPRI
+#endif
+
+#if EPOLLOUT != POLLOUT
+#error value of EPOLLOUT does not match value of POLLOUT
+#endif
+
+#if EPOLLRDNORM != POLLRDNORM
+#error value of EPOLLRDNORM does not match value of POLLRDNORM
+#endif
+
+#if EPOLLRDBAND != POLLRDBAND
+#error value of EPOLLRDBAND does not match value of POLLRDBAND
+#endif
+
+#if EPOLLERR != POLLERR
+#error value of EPOLLERR does not match value of POLLERR
+#endif
+
+#if EPOLLHUP != POLLHUP
+#error value of EPOLLHUP does not match value of POLLHUP
+#endif
+
+/*
+ * Events that we ignore entirely.  They can be set in events, but they will
+ * never be returned.
+ */
+#define	EPOLLIGNORED 	(EPOLLMSG | EPOLLWAKEUP)
+
+/*
+ * Events that we swizzle into other bit positions.
+ */
+#define	EPOLLSWIZZLED	\
+	(EPOLLRDHUP | EPOLLONESHOT | EPOLLET | EPOLLWRBAND | EPOLLWRNORM)
+
+int
+epoll_create(int size)
+{
+	int fd;
+
+	/*
+	 * From the epoll_create() man page:  "Since Linux 2.6.8, the size
+	 * argument is ignored, but must be greater than zero."  You keep using
+	 * that word "ignored"...
+	 */
+	if (size <= 0) {
+		errno = EINVAL;
+		return (-1);
+	}
+
+	if ((fd = open("/dev/poll", O_RDWR)) == -1)
+		return (-1);
+
+	if (ioctl(fd, DP_EPOLLCOMPAT, 0) == -1) {
+		(void) close(fd);
+		return (-1);
+	}
+
+	return (fd);
+}
+
+int
+epoll_create1(int flags)
+{
+	int fd, oflags = O_RDWR;
+
+	if (flags & EPOLL_CLOEXEC)
+		oflags |= O_CLOEXEC;
+
+	if ((fd = open("/dev/poll", oflags)) == -1)
+		return (-1);
+
+	if (ioctl(fd, DP_EPOLLCOMPAT, 0) == -1) {
+		(void) close(fd);
+		return (-1);
+	}
+
+	return (fd);
+}
+
+int
+epoll_ctl(int epfd, int op, int fd, struct epoll_event *event)
+{
+	dvpoll_epollfd_t epoll[2];
+	uint32_t events, ev = 0;
+	int i = 0;
+
+	epoll[i].dpep_pollfd.fd = fd;
+
+	switch (op) {
+	case EPOLL_CTL_DEL:
+		ev = POLLREMOVE;
+		break;
+
+	case EPOLL_CTL_MOD:
+		/*
+		 * In the modify case, we pass down two events:  one to
+		 * remove the event and another to add it back.
+		 */
+		epoll[i++].dpep_pollfd.events = POLLREMOVE;
+		epoll[i].dpep_pollfd.fd = fd;
+		/* FALLTHROUGH */
+
+	case EPOLL_CTL_ADD:
+		/*
+		 * Mask off the events that we ignore, and then swizzle the
+		 * events for which our values differ from their epoll(7)
+		 * equivalents.
+		 */
+		events = event->events;
+		ev = events & ~(EPOLLIGNORED | EPOLLSWIZZLED);
+
+		if (events & EPOLLRDHUP)
+			ev |= POLLRDHUP;
+
+		if (events & EPOLLET)
+			ev |= POLLET;
+
+		if (events & EPOLLONESHOT)
+			ev |= POLLONESHOT;
+
+		if (events & EPOLLWRNORM)
+			ev |= POLLWRNORM;
+
+		if (events & EPOLLWRBAND)
+			ev |= POLLWRBAND;
+
+		epoll[i].dpep_data = event->data.u64;
+		break;
+
+	default:
+		errno = EOPNOTSUPP;
+		return (-1);
+	}
+
+	epoll[i].dpep_pollfd.events = ev;
+
+	return (write(epfd, epoll, sizeof (epoll[0]) * (i + 1)) == -1 ? -1 : 0);
+}
+
+int
+epoll_wait(int epfd, struct epoll_event *events,
+    int maxevents, int timeout)
+{
+	struct dvpoll arg;
+
+	if (maxevents <= 0) {
+		errno = EINVAL;
+		return (-1);
+	}
+
+	arg.dp_nfds = maxevents;
+	arg.dp_timeout = timeout;
+	arg.dp_fds = (pollfd_t *)events;
+
+	return (ioctl(epfd, DP_POLL, &arg));
+}
+
+int
+epoll_pwait(int epfd, struct epoll_event *events,
+    int maxevents, int timeout, const sigset_t *sigmask)
+{
+	struct dvpoll arg;
+
+	if (maxevents <= 0) {
+		errno = EINVAL;
+		return (-1);
+	}
+
+	arg.dp_nfds = maxevents;
+	arg.dp_timeout = timeout;
+	arg.dp_fds = (pollfd_t *)events;
+	arg.dp_setp = (sigset_t *)sigmask;
+
+	return (ioctl(epfd, DP_PPOLL, &arg));
+}
diff --git a/usr/src/lib/libc/port/sys/eventfd.c b/usr/src/lib/libc/port/sys/eventfd.c
new file mode 100644
index 0000000000..bd2eba4efa
--- /dev/null
+++ b/usr/src/lib/libc/port/sys/eventfd.c
@@ -0,0 +1,65 @@
+/*
+ * This file and its contents are supplied under the terms of the
+ * Common Development and Distribution License ("CDDL"), version 1.0.
+ * You may only use this file in accordance with the terms of version
+ * 1.0 of the CDDL.
+ *
+ * A full copy of the text of the CDDL should have accompanied this
+ * source.  A copy of the CDDL is also available via the Internet at
+ * http://www.illumos.org/license/CDDL.
+ */
+
+/*
+ * Copyright (c) 2014, Joyent, Inc.  All rights reserved.
+ */
+
+#include <sys/eventfd.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+
+int
+eventfd(unsigned int initval, int flags)
+{
+	int oflags = O_RDWR;
+	uint64_t val = initval;
+	int fd;
+
+	if (flags & ~(EFD_NONBLOCK | EFD_CLOEXEC | EFD_SEMAPHORE))
+		return (EINVAL);
+
+	if (flags & EFD_NONBLOCK)
+		oflags |= O_NONBLOCK;
+
+	if (flags & EFD_CLOEXEC)
+		oflags |= O_CLOEXEC;
+
+	if ((fd = open("/dev/eventfd", oflags)) < 0)
+		return (-1);
+
+	if ((flags & EFD_SEMAPHORE) &&
+	    ioctl(fd, EVENTFDIOC_SEMAPHORE, 0) != 0) {
+		(void) close(fd);
+		return (-1);
+	}
+
+	if (write(fd, &val, sizeof (val)) < sizeof (val)) {
+		(void) close(fd);
+		return (-1);
+	}
+
+	return (fd);
+}
+
+int
+eventfd_read(int fd, eventfd_t *valp)
+{
+	return (read(fd, valp, sizeof (*valp)) < sizeof (*valp) ? -1 : 0);
+}
+
+int
+eventfd_write(int fd, eventfd_t val)
+{
+	return (write(fd, &val, sizeof (val)) < sizeof (val) ? -1 : 0);
+}
diff --git a/usr/src/lib/libc/port/sys/inotify.c b/usr/src/lib/libc/port/sys/inotify.c
new file mode 100644
index 0000000000..5d637eaee1
--- /dev/null
+++ b/usr/src/lib/libc/port/sys/inotify.c
@@ -0,0 +1,142 @@
+/*
+ * This file and its contents are supplied under the terms of the
+ * Common Development and Distribution License ("CDDL"), version 1.0.
+ * You may only use this file in accordance with the terms of version
+ * 1.0 of the CDDL.
+ *
+ * A full copy of the text of the CDDL should have accompanied this
+ * source.  A copy of the CDDL is also available via the Internet at
+ * http://www.illumos.org/license/CDDL.
+ */
+
+/*
+ * Copyright (c) 2014, Joyent, Inc.  All rights reserved.
+ */
+
+#include <sys/inotify.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <strings.h>
+#include <dirent.h>
+
+int
+inotify_init()
+{
+	return (open("/dev/inotify", O_RDWR));
+}
+
+int
+inotify_init1(int flags)
+{
+	int oflags = O_RDWR;
+
+	if (flags & IN_NONBLOCK)
+		oflags |= O_NONBLOCK;
+
+	if (flags & IN_CLOEXEC)
+		oflags |= O_CLOEXEC;
+
+	return (open("/dev/inotify", oflags));
+}
+
+int
+inotify_add_watch(int fd, const char *pathname, uint32_t mask)
+{
+	inotify_addwatch_t ioc;
+	inotify_addchild_t cioc;
+	struct stat buf;
+	int dirfd, wd;
+	DIR *dir;
+	struct dirent *dp;
+	int oflags = O_RDONLY;
+
+	if (mask & IN_DONT_FOLLOW)
+		oflags |= O_NOFOLLOW;
+
+	if ((dirfd = open(pathname, oflags)) < 0)
+		return (-1);
+
+	if (fstat(dirfd, &buf) != 0) {
+		(void) close(dirfd);
+		return (-1);
+	}
+
+	if ((mask & IN_ONLYDIR) && !(buf.st_mode & S_IFDIR)) {
+		(void) close(dirfd);
+		errno = ENOTDIR;
+		return (-1);
+	}
+
+	bzero(&ioc, sizeof (ioc));
+	ioc.inaw_fd = dirfd;
+	ioc.inaw_mask = mask;
+
+	if ((wd = ioctl(fd, INOTIFYIOC_ADD_WATCH, &ioc)) < 0) {
+		(void) close(dirfd);
+		return (-1);
+	}
+
+	if (!(buf.st_mode & S_IFDIR) || !(mask & IN_CHILD_EVENTS)) {
+		(void) close(dirfd);
+		(void) ioctl(fd, INOTIFYIOC_ACTIVATE, wd);
+		return (wd);
+	}
+
+	/*
+	 * If we have a directory and we have a mask that denotes child events,
+	 * we need to manually add a child watch to every directory entry.
+	 * (Because our watch is in place, it will automatically be added to
+	 * files that are newly created after this point.)
+	 */
+	if ((dir = fdopendir(dirfd)) == NULL) {
+		(void) inotify_rm_watch(fd, wd);
+		(void) close(dirfd);
+		return (-1);
+	}
+
+	bzero(&cioc, sizeof (cioc));
+	cioc.inac_fd = dirfd;
+
+	while ((dp = readdir(dir)) != NULL) {
+		if (strcmp(dp->d_name, ".") == 0)
+			continue;
+
+		if (strcmp(dp->d_name, "..") == 0)
+			continue;
+
+		cioc.inac_name = dp->d_name;
+
+		if (ioctl(fd, INOTIFYIOC_ADD_CHILD, &cioc) != 0) {
+			/*
+			 * If we get an error that indicates clear internal
+			 * malfunctioning, we propagate the error.  Otherwise
+			 * we eat it:  this could be a file that no longer
+			 * exists or a symlink or something else that we
+			 * can't lookup.
+			 */
+			switch (errno) {
+			case ENXIO:
+			case EFAULT:
+			case EBADF:
+				(void) closedir(dir);
+				inotify_rm_watch(fd, wd);
+				return (-1);
+			default:
+				break;
+			}
+		}
+	}
+
+	(void) closedir(dir);
+	(void) ioctl(fd, INOTIFYIOC_ACTIVATE, wd);
+
+	return (wd);
+}
+
+int
+inotify_rm_watch(int fd, int wd)
+{
+	return (ioctl(fd, INOTIFYIOC_RM_WATCH, wd));
+}
diff --git a/usr/src/lib/libc/port/sys/zone.c b/usr/src/lib/libc/port/sys/zone.c
index 4a4c70043d..8cf28c3ccf 100644
--- a/usr/src/lib/libc/port/sys/zone.c
+++ b/usr/src/lib/libc/port/sys/zone.c
@@ -22,9 +22,11 @@
 /*
  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
+ * Copyright 2011 Joyent Inc.  All rights reserved.
  */
 
 #include "lint.h"
+#include "thr_uberdata.h"
 #include <sys/types.h>
 #include <sys/syscall.h>
 #include <sys/zone.h>
@@ -39,7 +41,8 @@
 zoneid_t
 zone_create(const char *name, const char *root, const struct priv_set *privs,
     const char *rctls, size_t rctlsz, const char *zfs, size_t zfssz,
-    int *extended_error, int match, int doi, const bslabel_t *label, int flags)
+    int *extended_error, int match, int doi, const bslabel_t *label, int flags,
+    zoneid_t req_zoneid)
 {
 	zone_def  zd;
 	priv_data_t *d;
@@ -59,6 +62,7 @@ zone_create(const char *name, const char *root, const struct priv_set *privs,
 	zd.doi = doi;
 	zd.label = label;
 	zd.flags = flags;
+	zd.zoneid = req_zoneid;
 
 	return ((zoneid_t)syscall(SYS_zone, ZONE_CREATE, &zd));
 }
@@ -241,3 +245,10 @@ zone_list_datalink(zoneid_t zoneid, int *dlnump, datalink_id_t *linkids)
 {
 	return (syscall(SYS_zone, ZONE_LIST_DATALINK, zoneid, dlnump, linkids));
 }
+
+const char *
+zone_get_nroot()
+{
+	uberdata_t *udp = curthread->ul_uberdata;
+	return (udp->ub_broot);
+}
diff --git a/usr/src/lib/libc/port/threads/alloc.c b/usr/src/lib/libc/port/threads/alloc.c
index 5851212ad4..99f68000d2 100644
--- a/usr/src/lib/libc/port/threads/alloc.c
+++ b/usr/src/lib/libc/port/threads/alloc.c
@@ -21,13 +21,14 @@
 
 /*
  * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, Joyent, Inc.  All rights reserved.
  */
 
 #include "lint.h"
 #include "thr_uberdata.h"
 #include <sys/syscall.h>
 
-extern int __systemcall6(sysret_t *, int, ...);
+extern long __systemcall6(sysret_t *, int, ...);
 
 /*
  * This is a small and simple power of two memory allocator that is
diff --git a/usr/src/lib/libc/port/threads/sigaction.c b/usr/src/lib/libc/port/threads/sigaction.c
index 8e9df7ab60..dd7e6159fb 100644
--- a/usr/src/lib/libc/port/threads/sigaction.c
+++ b/usr/src/lib/libc/port/threads/sigaction.c
@@ -22,6 +22,7 @@
 /*
  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
+ * Copyright 2014 Joyent, Inc.  All rights reserved.
  */
 
 #include "lint.h"
@@ -458,11 +459,12 @@ sigaction(int sig, const struct sigaction *nact, struct sigaction *oact)
 }
 
 /*
- * This is a private interface for the linux brand interface.
+ * This is a private interface for the lx brand.
  */
 void
 setsigacthandler(void (*nsigacthandler)(int, siginfo_t *, void *),
-    void (**osigacthandler)(int, siginfo_t *, void *))
+    void (**osigacthandler)(int, siginfo_t *, void *),
+    int (*brsetctxt)(const ucontext_t *))
 {
 	ulwp_t *self = curthread;
 	uberdata_t *udp = self->ul_uberdata;
@@ -471,6 +473,9 @@ setsigacthandler(void (*nsigacthandler)(int, siginfo_t *, void *),
 		*osigacthandler = udp->sigacthandler;
 
 	udp->sigacthandler = nsigacthandler;
+
+	if (brsetctxt != NULL)
+		udp->setctxt = brsetctxt;
 }
 
 /*
@@ -522,6 +527,7 @@ int
 setcontext(const ucontext_t *ucp)
 {
 	ulwp_t *self = curthread;
+	uberdata_t *udp = self->ul_uberdata;
 	int ret;
 	ucontext_t uc;
 
@@ -578,7 +584,7 @@ setcontext(const ucontext_t *ucp)
 	 */
 	set_parking_flag(self, 0);
 	self->ul_sp = 0;
-	ret = __setcontext(&uc);
+	ret = udp->setctxt(&uc);
 
 	/*
 	 * It is OK for setcontext() to return if the user has not specified
diff --git a/usr/src/lib/libc/port/threads/thr.c b/usr/src/lib/libc/port/threads/thr.c
index b5d848449d..485d7f8edf 100644
--- a/usr/src/lib/libc/port/threads/thr.c
+++ b/usr/src/lib/libc/port/threads/thr.c
@@ -23,7 +23,7 @@
  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
  */
 /*
- * Copyright (c) 2012, Joyent, Inc. All rights reserved.
+ * Copyright 2014 Joyent, Inc. All rights reserved.
  */
 
 #include "lint.h"
@@ -124,6 +124,7 @@ uberdata_t __uberdata = {
 	0,			/* ndaemons */
 	0,			/* pid */
 	sigacthandler,		/* sigacthandler */
+	__setcontext,		/* setctxt */
 	NULL,			/* lwp_stacks */
 	NULL,			/* lwp_laststack */
 	0,			/* nfreestack */
@@ -136,6 +137,7 @@ uberdata_t __uberdata = {
 	NULL,			/* robustlocks */
 	NULL,			/* robustlist */
 	NULL,			/* progname */
+	NULL,			/* ub_broot */
 	NULL,			/* __tdb_bootstrap */
 	{			/* tdb */
 		NULL,		/* tdb_sync_addr_hash */
@@ -1219,6 +1221,24 @@ extern void atfork_init(void);
 extern void __proc64id(void);
 #endif
 
+static void
+init_brandroot(uberdata_t *udp)
+{
+	Dl_argsinfo_t args;
+
+	udp->ub_broot = NULL;
+	if (dlinfo(RTLD_SELF, RTLD_DI_ARGSINFO, &args) < 0)
+		return;
+
+	while (args.dla_auxv->a_type != AT_NULL) {
+		if (args.dla_auxv->a_type == AT_SUN_BRAND_NROOT) {
+			udp->ub_broot = args.dla_auxv->a_un.a_ptr;
+			return;
+		}
+		args.dla_auxv++;
+	}
+}
+
 /*
  * libc_init() is called by ld.so.1 for library initialization.
  * We perform minimal initialization; enough to work with the main thread.
@@ -1255,6 +1275,13 @@ libc_init(void)
 	(void) _atexit(__cleanup);
 
 	/*
+	 * Every libc, regardless of link map, needs to go through and check its
+	 * aux vectors so as to indicate whether or not this has been given a
+	 * brand root with which we use to qualify various other data.
+	 */
+	init_brandroot(udp);
+
+	/*
 	 * We keep our uberdata on one of (a) the first alternate link map
 	 * or (b) the primary link map.  We switch to the primary link map
 	 * and stay there once we see it.  All intermediate link maps are
diff --git a/usr/src/lib/libc/sparc/Makefile.com b/usr/src/lib/libc/sparc/Makefile.com
index fdeaaf757f..71867bf07d 100644
--- a/usr/src/lib/libc/sparc/Makefile.com
+++ b/usr/src/lib/libc/sparc/Makefile.com
@@ -929,6 +929,8 @@ PORTSYS=			\
 	chmod.o			\
 	chown.o			\
 	corectl.o		\
+	epoll.o			\
+	eventfd.o		\
 	exacctsys.o		\
 	execl.o			\
 	execle.o		\
@@ -936,6 +938,7 @@ PORTSYS=			\
 	fcntl.o			\
 	getpagesizes.o		\
 	getpeerucred.o		\
+	inotify.o		\
 	inst_sync.o		\
 	issetugid.o		\
 	label.o			\
diff --git a/usr/src/lib/libc/sparc/crt/_rtld.c b/usr/src/lib/libc/sparc/crt/_rtld.c
index a9e9c6d98a..843cfe03a5 100644
--- a/usr/src/lib/libc/sparc/crt/_rtld.c
+++ b/usr/src/lib/libc/sparc/crt/_rtld.c
@@ -62,6 +62,15 @@
 #define	SYSCONFIG (*(funcs[SYSCONFIG_F]))
 
 /*
+ * GCC will not emit unused static functions unless specifically told it must
+ */
+#ifdef __GNUC__
+#define	__USED	__attribute__((used))
+#else
+#define	__USED
+#endif
+
+/*
  * Alias ld.so entry point -- receives a bootstrap structure and a vector
  * of strings.  The vector is "well-known" to us, and consists of pointers
  * to string constants.  This aliasing bootstrap requires no relocation in
diff --git a/usr/src/lib/libc/sparcv9/Makefile.com b/usr/src/lib/libc/sparcv9/Makefile.com
index 39fa3d2c9f..f6628f8899 100644
--- a/usr/src/lib/libc/sparcv9/Makefile.com
+++ b/usr/src/lib/libc/sparcv9/Makefile.com
@@ -873,6 +873,7 @@ PORTSYS=			\
 	chmod.o			\
 	chown.o			\
 	corectl.o		\
+	epoll.o			\
 	exacctsys.o		\
 	execl.o			\
 	execle.o		\