MFhead@r325422

9 files changed, 33 insertions, 15 deletions

diff --git a/lib/libc/stdlib/quick_exit.3 b/lib/libc/stdlib/quick_exit.3
index fb1e346bb106..9d316c7e46ea 100644
--- a/lib/libc/stdlib/quick_exit.3
+++ b/lib/libc/stdlib/quick_exit.3
@@ -24,7 +24,7 @@
 .\"
 .\"  $FreeBSD$
 .\"
-.Dd December 13, 2014
+.Dd November 4, 2017
 .Dt QUICK_EXIT 3
 .Os
 .Sh NAME
@@ -44,6 +44,17 @@ with
 .Xr at_quick_exit 3
 but not any C++ destructors or cleanup code registered with
 .Xr atexit 3 .
+The
+.Xr stdio 3
+file buffers are not flushed.
+.Pp
+The function
+.Fn quick_exit
+is
+.Em async-signal safe
+when the functions registered with
+.Xr at_quick_exit 3
+are.
 .Sh RETURN VALUES
 The
 .Fn quick_exit
diff --git a/lib/libc/stdlib/quick_exit.c b/lib/libc/stdlib/quick_exit.c
index ef8cdb1b401a..4d81a35f5375 100644
--- a/lib/libc/stdlib/quick_exit.c
+++ b/lib/libc/stdlib/quick_exit.c
@@ -26,6 +26,8 @@
  * $FreeBSD$
  */
 
+#include <sys/types.h>
+#include <machine/atomic.h>
 #include <stdlib.h>
 #include <pthread.h>
 
@@ -60,6 +62,7 @@ at_quick_exit(void (*func)(void))
 	h->cleanup = func;
 	pthread_mutex_lock(&atexit_mutex);
 	h->next = handlers;
+	__compiler_membar();
 	handlers = h;
 	pthread_mutex_unlock(&atexit_mutex);
 	return (0);
@@ -74,7 +77,9 @@ quick_exit(int status)
 	 * XXX: The C++ spec requires us to call std::terminate if there is an
 	 * exception here.
 	 */
-	for (h = handlers; NULL != h; h = h->next)
+	for (h = handlers; NULL != h; h = h->next) {
+		__compiler_membar();
 		h->cleanup();
+	}
 	_Exit(status);
 }
diff --git a/lib/libc/sys/posix_fallocate.2 b/lib/libc/sys/posix_fallocate.2
index 1bc59caf7239..4fba3dd87611 100644
--- a/lib/libc/sys/posix_fallocate.2
+++ b/lib/libc/sys/posix_fallocate.2
@@ -28,7 +28,7 @@
 .\"     @(#)open.2	8.2 (Berkeley) 11/16/93
 .\" $FreeBSD$
 .\"
-.Dd October 12, 2017
+.Dd November 4, 2017
 .Dt POSIX_FALLOCATE 2
 .Os
 .Sh NAME
@@ -106,9 +106,10 @@ A signal was caught during execution.
 .It Bq Er EINVAL
 The
 .Fa len
-argument was less than or equal to zero or the
+argument was less than or equal to zero, the
 .Fa offset
-argument was less than zero.
+argument was less than zero,
+or the operation is not supported by the file system.
 .It Bq Er EIO
 An I/O error occurred while reading from or writing to a file system.
 .It Bq Er ENODEV
diff --git a/lib/libcasper/libcasper/Makefile b/lib/libcasper/libcasper/Makefile
index 75ac69bf55e8..729bf071846a 100644
--- a/lib/libcasper/libcasper/Makefile
+++ b/lib/libcasper/libcasper/Makefile
@@ -1,14 +1,14 @@
 # $FreeBSD$
 
+SHLIBDIR?=	/lib
+
 .include <src.opts.mk>
 
 PACKAGE=${LIB}
 
-SHLIB_MAJOR=	0
-SHLIBDIR?=	/lib
-
 .if ${MK_CASPER} != "no"
-LIB=	casper
+SHLIB=	casper
+SHLIB_MAJOR=	0
 
 SRCS=	libcasper.c
 SRCS+=	libcasper_impl.c
diff --git a/lib/libcasper/services/cap_dns/Makefile b/lib/libcasper/services/cap_dns/Makefile
index 3e2daa2cfaaa..e89be7f5396d 100644
--- a/lib/libcasper/services/cap_dns/Makefile
+++ b/lib/libcasper/services/cap_dns/Makefile
@@ -10,7 +10,7 @@ SHLIB_MAJOR=	0
 INCSDIR?=	${INCLUDEDIR}/casper
 
 .if ${MK_CASPER} != "no"
-LIB=	cap_dns
+SHLIB=	cap_dns
 
 SRCS=	cap_dns.c
 .endif
diff --git a/lib/libcasper/services/cap_grp/Makefile b/lib/libcasper/services/cap_grp/Makefile
index d15cd72c20ce..5b464774f9f5 100644
--- a/lib/libcasper/services/cap_grp/Makefile
+++ b/lib/libcasper/services/cap_grp/Makefile
@@ -10,7 +10,7 @@ SHLIB_MAJOR=	0
 INCSDIR?=	${INCLUDEDIR}/casper
 
 .if ${MK_CASPER} != "no"
-LIB=	cap_grp
+SHLIB=	cap_grp
 
 SRCS=	cap_grp.c
 .endif
diff --git a/lib/libcasper/services/cap_pwd/Makefile b/lib/libcasper/services/cap_pwd/Makefile
index fc2a32850f79..be4ae89181c7 100644
--- a/lib/libcasper/services/cap_pwd/Makefile
+++ b/lib/libcasper/services/cap_pwd/Makefile
@@ -10,7 +10,7 @@ SHLIB_MAJOR=	0
 INCSDIR?=	${INCLUDEDIR}/casper
 
 .if ${MK_CASPER} != "no"
-LIB=	cap_pwd
+SHLIB=	cap_pwd
 
 SRCS=	cap_pwd.c
 .endif
diff --git a/lib/libcasper/services/cap_random/Makefile b/lib/libcasper/services/cap_random/Makefile
index d29cd147aeb0..fad8e3f9cdb7 100644
--- a/lib/libcasper/services/cap_random/Makefile
+++ b/lib/libcasper/services/cap_random/Makefile
@@ -1,15 +1,16 @@
 # $FreeBSD$
 
+SHLIBDIR?=	/lib/casper
+
 .include <src.opts.mk>
 
 PACKAGE=libcasper
 
 SHLIB_MAJOR=	0
-SHLIBDIR?=	/lib/casper
 INCSDIR?=	${INCLUDEDIR}/casper
 
 .if ${MK_CASPER} != "no"
-LIB=	cap_random
+SHLIB=	cap_random
 
 SRCS=	cap_random.c
 .endif
diff --git a/lib/libcasper/services/cap_sysctl/Makefile b/lib/libcasper/services/cap_sysctl/Makefile
index cd5c4b238724..14f2bd60cf97 100644
--- a/lib/libcasper/services/cap_sysctl/Makefile
+++ b/lib/libcasper/services/cap_sysctl/Makefile
@@ -10,7 +10,7 @@ SHLIB_MAJOR=	0
 INCSDIR?=	${INCLUDEDIR}/casper
 
 .if ${MK_CASPER} != "no"
-LIB=	cap_sysctl
+SHLIB=	cap_sysctl
 
 SRCS=	cap_sysctl.c
 .endif