Add native implementations of eventfd(2) and timerfd(2), compatible with

the Linux interfaces of the same name.

Author: thorpej

distrib/sets/lists/base/shl.mi

@@ -1,4 +1,4 @@
-# $NetBSD: shl.mi,v 1.925 2021/09/02 11:28:45 christos Exp $
+# $NetBSD: shl.mi,v 1.926 2021/09/19 15:51:27 thorpej Exp $
 #
 # Note:	Don't delete entries from here - mark them as "obsolete" instead,
 #	unless otherwise stated below.
@@ -24,7 +24,7 @@
 ./lib/libblocklist.so.0.0			base-sys-shlib		dynamicroot
 ./lib/libc.so					base-sys-shlib		dynamicroot
 ./lib/libc.so.12				base-sys-shlib		dynamicroot
-./lib/libc.so.12.218				base-sys-shlib		dynamicroot
+./lib/libc.so.12.219				base-sys-shlib		dynamicroot
 ./lib/libcrypt.so				base-sys-shlib		dynamicroot
 ./lib/libcrypt.so.1				base-sys-shlib		dynamicroot
 ./lib/libcrypt.so.1.0				base-sys-shlib		dynamicroot
@@ -251,7 +251,7 @@
 ./usr/lib/libc++.so.1.0				base-sys-shlib		compatfile,libcxx
 ./usr/lib/libc.so				base-sys-shlib		compatfile
 ./usr/lib/libc.so.12				base-sys-shlib		compatfile
-./usr/lib/libc.so.12.218			base-sys-shlib		compatfile
+./usr/lib/libc.so.12.219			base-sys-shlib		compatfile
 ./usr/lib/libcbor.so				base-sys-shlib		compatfile
 ./usr/lib/libcbor.so.0				base-sys-shlib		compatfile
 ./usr/lib/libcbor.so.0.5			base-sys-shlib		compatfile

distrib/sets/lists/comp/mi

@@ -1,4 +1,4 @@
-#	$NetBSD: mi,v 1.2392 2021/09/16 23:32:49 christos Exp $
+#	$NetBSD: mi,v 1.2393 2021/09/19 15:51:27 thorpej Exp $
 #
 # Note: don't delete entries from here - mark them as "obsolete" instead.
 ./etc/mtree/set.comp				comp-sys-root
@@ -3279,6 +3279,7 @@
 ./usr/include/sys/errno.h			comp-c-include
 ./usr/include/sys/evcnt.h			comp-c-include
 ./usr/include/sys/event.h			comp-c-include
+./usr/include/sys/eventfd.h			comp-c-include
 ./usr/include/sys/exec.h			comp-c-include
 ./usr/include/sys/exec_aout.h			comp-c-include
 ./usr/include/sys/exec_coff.h			comp-c-include
@@ -3430,6 +3431,7 @@
 ./usr/include/sys/time.h			comp-c-include
 ./usr/include/sys/timeb.h			comp-c-include
 ./usr/include/sys/timepps.h			comp-c-include
+./usr/include/sys/timerfd.h			comp-c-include
 ./usr/include/sys/times.h			comp-c-include
 ./usr/include/sys/timespec.h			comp-c-include
 ./usr/include/sys/timex.h			comp-c-include
@@ -4659,6 +4661,9 @@
 ./usr/share/man/cat2/dup2.0			comp-c-catman		.cat
 ./usr/share/man/cat2/dup3.0			comp-c-catman		.cat
 ./usr/share/man/cat2/errno.0			comp-c-catman		.cat
+./usr/share/man/cat2/eventfd.0			comp-c-catman		.cat
+./usr/share/man/cat2/eventfd_read.0		comp-c-catman		.cat
+./usr/share/man/cat2/eventfd_write.0		comp-c-catman		.cat
 ./usr/share/man/cat2/execve.0			comp-c-catman		.cat
 ./usr/share/man/cat2/extattr_delete_fd.0	comp-c-catman		.cat
 ./usr/share/man/cat2/extattr_delete_file.0	comp-c-catman		.cat
@@ -4897,6 +4902,10 @@
 ./usr/share/man/cat2/timer_getoverrun.0		comp-c-catman		.cat
 ./usr/share/man/cat2/timer_gettime.0		comp-c-catman		.cat
 ./usr/share/man/cat2/timer_settime.0		comp-c-catman		.cat
+./usr/share/man/cat2/timerfd.0			comp-c-catman		.cat
+./usr/share/man/cat2/timerfd_create.0		comp-c-catman		.cat
+./usr/share/man/cat2/timerfd_gettime.0		comp-c-catman		.cat
+./usr/share/man/cat2/timerfd_settime.0		comp-c-catman		.cat
 ./usr/share/man/cat2/truncate.0			comp-c-catman		.cat
 ./usr/share/man/cat2/ucontext.0			comp-c-catman		.cat
 ./usr/share/man/cat2/umask.0			comp-c-catman		.cat
@@ -12994,6 +13003,9 @@
 ./usr/share/man/html2/dup2.html			comp-c-htmlman		html
 ./usr/share/man/html2/dup3.html			comp-c-htmlman		html
 ./usr/share/man/html2/errno.html		comp-c-htmlman		html
+./usr/share/man/html2/eventfd.html		comp-c-htmlman		html
+./usr/share/man/html2/eventfd_read.html		comp-c-htmlman		html
+./usr/share/man/html2/eventfd_write.html	comp-c-htmlman		html
 ./usr/share/man/html2/execve.html		comp-c-htmlman		html
 ./usr/share/man/html2/extattr_delete_fd.html	comp-c-htmlman		html
 ./usr/share/man/html2/extattr_delete_file.html	comp-c-htmlman		html
@@ -13218,6 +13230,10 @@
 ./usr/share/man/html2/timer_getoverrun.html	comp-c-htmlman		html
 ./usr/share/man/html2/timer_gettime.html	comp-c-htmlman		html
 ./usr/share/man/html2/timer_settime.html	comp-c-htmlman		html
+./usr/share/man/html2/timerfd.html		comp-c-htmlman		html
+./usr/share/man/html2/timerfd_create.html	comp-c-htmlman		html
+./usr/share/man/html2/timerfd_gettime.html	comp-c-htmlman		html
+./usr/share/man/html2/timerfd_settime.html	comp-c-htmlman		html
 ./usr/share/man/html2/truncate.html		comp-c-htmlman		html
 ./usr/share/man/html2/ucontext.html		comp-c-htmlman		html
 ./usr/share/man/html2/umask.html		comp-c-htmlman		html
@@ -21146,6 +21162,9 @@
 ./usr/share/man/man2/dup2.2			comp-c-man		.man
 ./usr/share/man/man2/dup3.2			comp-c-man		.man
 ./usr/share/man/man2/errno.2			comp-c-man		.man
+./usr/share/man/man2/eventfd.2			comp-c-man		.man
+./usr/share/man/man2/eventfd_read.2		comp-c-man		.man
+./usr/share/man/man2/eventfd_write.2		comp-c-man		.man
 ./usr/share/man/man2/execve.2			comp-c-man		.man
 ./usr/share/man/man2/extattr_delete_fd.2	comp-c-man		.man
 ./usr/share/man/man2/extattr_delete_file.2	comp-c-man		.man
@@ -21382,6 +21401,10 @@
 ./usr/share/man/man2/timer_getoverrun.2		comp-c-man		.man
 ./usr/share/man/man2/timer_gettime.2		comp-c-man		.man
 ./usr/share/man/man2/timer_settime.2		comp-c-man		.man
+./usr/share/man/man2/timerfd.2			comp-c-man		.man
+./usr/share/man/man2/timerfd_create.2		comp-c-man		.man
+./usr/share/man/man2/timerfd_gettime.2		comp-c-man		.man
+./usr/share/man/man2/timerfd_settime.2		comp-c-man		.man
 ./usr/share/man/man2/truncate.2			comp-c-man		.man
 ./usr/share/man/man2/ucontext.2			comp-c-man		.man
 ./usr/share/man/man2/umask.2			comp-c-man		.man

distrib/sets/lists/debug/mi

@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.360 2021/08/29 09:54:18 christos Exp $
+# $NetBSD: mi,v 1.361 2021/09/19 15:51:28 thorpej Exp $
 ./etc/mtree/set.debug                           comp-sys-root
 ./usr/lib					comp-sys-usr		compatdir
 ./usr/lib/i18n/libBIG5_g.a			comp-c-debuglib		debuglib,compatfile
@@ -2157,6 +2157,7 @@
 ./usr/libdata/debug/usr/tests/lib/libc/sys/t_connect.debug		tests-lib-debug		debug,atf,compattestfile
 ./usr/libdata/debug/usr/tests/lib/libc/sys/t_context.debug		tests-obsolete		obsolete,compattestfile
 ./usr/libdata/debug/usr/tests/lib/libc/sys/t_dup.debug			tests-lib-debug		debug,atf,compattestfile
+./usr/libdata/debug/usr/tests/lib/libc/sys/t_eventfd.debug		tests-lib-debug		debug,atf,compattestfile
 ./usr/libdata/debug/usr/tests/lib/libc/sys/t_fork.debug			tests-lib-debug		debug,atf,compattestfile
 ./usr/libdata/debug/usr/tests/lib/libc/sys/t_fsync.debug		tests-lib-debug		debug,atf,compattestfile
 ./usr/libdata/debug/usr/tests/lib/libc/sys/t_futex_ops.debug           	tests-lib-tests         debug,atf,compattestfile
@@ -2224,6 +2225,7 @@
 ./usr/libdata/debug/usr/tests/lib/libc/sys/t_swapcontext.debug		tests-lib-debug		debug,atf,compattestfile
 ./usr/libdata/debug/usr/tests/lib/libc/sys/t_syscall.debug		tests-lib-debug		debug,atf,compattestfile
 ./usr/libdata/debug/usr/tests/lib/libc/sys/t_timer_create.debug		tests-lib-debug		debug,atf,compattestfile
+./usr/libdata/debug/usr/tests/lib/libc/sys/t_timerfd.debug		tests-lib-debug		debug,atf,compattestfile
 ./usr/libdata/debug/usr/tests/lib/libc/sys/t_truncate.debug		tests-lib-debug		debug,atf,compattestfile
 ./usr/libdata/debug/usr/tests/lib/libc/sys/t_ucontext.debug		tests-lib-debug		debug,atf,compattestfile
 ./usr/libdata/debug/usr/tests/lib/libc/sys/t_umask.debug		tests-lib-debug		debug,atf,compattestfile

distrib/sets/lists/debug/shl.mi

@@ -1,10 +1,10 @@
-# $NetBSD: shl.mi,v 1.282 2021/09/02 11:28:45 christos Exp $
+# $NetBSD: shl.mi,v 1.283 2021/09/19 15:51:28 thorpej Exp $
 ./usr/lib/libbfd_g.a						comp-c-debuglib	debuglib,compatfile,binutils
 ./usr/libdata/debug/lib						base-sys-usr	debug,dynamicroot,compatdir
 ./usr/libdata/debug/lib/libavl.so.0.0.debug			comp-zfs-debug	debug,dynamicroot,zfs
 ./usr/libdata/debug/lib/libblacklist.so.0.0.debug		comp-obsolete	obsolete,compatfile
 ./usr/libdata/debug/lib/libblocklist.so.0.0.debug		comp-sys-debug	debug,dynamicroot
-./usr/libdata/debug/lib/libc.so.12.218.debug			comp-sys-debug	debug,dynamicroot
+./usr/libdata/debug/lib/libc.so.12.219.debug			comp-sys-debug	debug,dynamicroot
 ./usr/libdata/debug/lib/libcrypt.so.1.0.debug			comp-sys-debug	debug,dynamicroot
 ./usr/libdata/debug/lib/libcrypto.so.12.0.debug			comp-sys-debug	debug,dynamicroot,openssl=10
 ./usr/libdata/debug/lib/libcrypto.so.14.0.debug			comp-sys-debug	debug,dynamicroot,openssl=11
@@ -84,7 +84,7 @@
 ./usr/libdata/debug/usr/lib/libbsdmalloc.so.0.0.debug		comp-sys-debug	debug,compatfile
 ./usr/libdata/debug/usr/lib/libbz2.so.1.1.debug			comp-sys-debug	debug,compatfile
 ./usr/libdata/debug/usr/lib/libc++.so.1.0.debug			comp-sys-debug	debug,compatfile,libcxx
-./usr/libdata/debug/usr/lib/libc.so.12.218.debug		comp-sys-debug	debug,compatfile
+./usr/libdata/debug/usr/lib/libc.so.12.219.debug		comp-sys-debug	debug,compatfile
 ./usr/libdata/debug/usr/lib/libcbor.so.0.5.debug		comp-sys-debug	debug,compatfile
 ./usr/libdata/debug/usr/lib/libcom_err.so.8.0.debug		comp-krb5-debug	debug,compatfile,kerberos
 ./usr/libdata/debug/usr/lib/libcrypt.so.1.0.debug		comp-sys-debug	debug,compatfile

distrib/sets/lists/tests/mi

@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.1125 2021/09/13 22:09:06 rillig Exp $
+# $NetBSD: mi,v 1.1126 2021/09/19 15:51:28 thorpej Exp $
 #
 # Note: don't delete entries from here - mark them as "obsolete" instead.
 #
@@ -3145,6 +3145,7 @@
 ./usr/tests/lib/libc/sys/t_connect			tests-lib-tests		compattestfile,atf
 ./usr/tests/lib/libc/sys/t_context			tests-obsolete		obsolete
 ./usr/tests/lib/libc/sys/t_dup				tests-lib-tests		compattestfile,atf
+./usr/tests/lib/libc/sys/t_eventfd			tests-lib-tests		compattestfile,atf
 ./usr/tests/lib/libc/sys/t_fork				tests-lib-tests		compattestfile,atf
 ./usr/tests/lib/libc/sys/t_fsync			tests-lib-tests		compattestfile,atf
 ./usr/tests/lib/libc/sys/t_futex_ops			tests-lib-tests		compattestfile,atf
@@ -3212,6 +3213,7 @@
 ./usr/tests/lib/libc/sys/t_swapcontext			tests-lib-tests		compattestfile,atf
 ./usr/tests/lib/libc/sys/t_syscall			tests-lib-tests		compattestfile,atf
 ./usr/tests/lib/libc/sys/t_timer_create			tests-lib-tests		compattestfile,atf
+./usr/tests/lib/libc/sys/t_timerfd			tests-lib-tests		compattestfile,atf
 ./usr/tests/lib/libc/sys/t_truncate			tests-lib-tests		compattestfile,atf
 ./usr/tests/lib/libc/sys/t_ucontext			tests-lib-tests		compattestfile,atf
 ./usr/tests/lib/libc/sys/t_umask			tests-lib-tests		compattestfile,atf

lib/libc/shlib_version

@@ -1,4 +1,4 @@
-#	$NetBSD: shlib_version,v 1.291 2020/10/09 18:38:48 christos Exp $
+#	$NetBSD: shlib_version,v 1.292 2021/09/19 15:51:28 thorpej Exp $
 #	Remember to update distrib/sets/lists/base/shl.* when changing
 #
 # things we wish to do on next major version bump:
@@ -54,4 +54,4 @@
 # - the syscall stubs for the (obsolete) lfs syscalls should be removed
 # - remove tzsetwall(3), upstream has removed it
 major=12
-minor=218
+minor=219

lib/libc/sys/Makefile.inc

@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile.inc,v 1.245 2020/08/14 00:53:16 riastradh Exp $
+#	$NetBSD: Makefile.inc,v 1.246 2021/09/19 15:51:28 thorpej Exp $
 #	@(#)Makefile.inc	8.3 (Berkeley) 10/24/94
 
 # sys sources
@@ -7,9 +7,10 @@
 # other sources shared with the kernel, used in syscalls
 SRCS+=	cpuset.c
 # glue to offer userland wrappers for some syscalls
-SRCS+=	accept4.c clock_getcpuclockid.c posix_fadvise.c posix_madvise.c \
-	ppoll.c sched.c sigqueue.c sigtimedwait.c sigwait.c sigwaitinfo.c \
-	statvfs.c swapon.c semctl.c vadvise.c
+SRCS+=	accept4.c clock_getcpuclockid.c eventfd_read.c eventfd_write.c \
+	posix_fadvise.c posix_madvise.c ppoll.c sched.c sigqueue.c \
+	sigtimedwait.c sigwait.c sigwaitinfo.c statvfs.c swapon.c semctl.c \
+	vadvise.c
 
 .if ${RUMPRUN} != "yes"
 # modules with non-default implementations on at least one architecture:
@@ -100,6 +101,7 @@ ASM=\
 		clock_getcpuclockid2.S \
 		__clock_getres50.S __clock_gettime50.S \
 	dup.S dup2.S dup3.S \
+	eventfd.S \
 	extattrctl.S \
 		extattr_delete_fd.S extattr_delete_file.S \
 		extattr_delete_link.S extattr_get_fd.S extattr_get_file.S \
@@ -154,6 +156,7 @@ ASM=\
 		__statvfs190.S swapctl.S symlink.S symlinkat.S __sysctl.S \
 	timer_create.S timer_delete.S __timer_gettime50.S timer_getoverrun.S \
 		____semctl50.S __timer_settime50.S \
+	timerfd_create.S timerfd_gettime.S timerfd_settime.S \
 	umask.S undelete.S unlink.S unlinkat.S unmount.S __utimes50.S \
 		utimensat.S utrace.S uuidgen.S
 
@@ -251,7 +254,7 @@ LintSysPseudoNoerr.c: ${LIBCDIR}/sys/makelintstub \
 MAN+=	accept.2 access.2 acct.2 adjtime.2 bind.2 brk.2 chdir.2 \
 	chflags.2 chmod.2 chown.2 chroot.2 clock_getcpuclockid2.2 \
 	clock_settime.2 clone.2 close.2 \
-	connect.2 dup.2 execve.2 _exit.2 extattr_get_file.2 \
+	connect.2 dup.2 eventfd.2 execve.2 _exit.2 extattr_get_file.2 \
 	fcntl.2 fdatasync.2 fdiscard.2 fhopen.2 \
 	flock.2 fork.2 fsync.2 getcontext.2 getdents.2 \
 	getfh.2 getvfsstat.2 getgid.2 getgroups.2 \
@@ -284,7 +287,7 @@ MAN+=	accept.2 access.2 acct.2 adjtime.2 bind.2 brk.2 chdir.2 \
 	socket.2 \
 	socketpair.2 stat.2 statvfs.2 swapctl.2 swapon.3 symlink.2 \
 	sync.2 sysarch.2 syscall.2 timer_create.2 timer_delete.2 \
-	timer_settime.2 truncate.2 umask.2 undelete.2 \
+	timer_settime.2 timerfd.2 truncate.2 umask.2 undelete.2 \
 	unlink.2 utimes.2 utrace.2 uuidgen.2 vfork.2 wait.2 write.2
 
 MLINKS+=_exit.2 _Exit.2
@@ -299,6 +302,8 @@ MLINKS+=chown.2 fchown.2 chown.2 lchown.2
 MLINKS+=chroot.2 fchroot.2
 MLINKS+=clock_settime.2 clock_gettime.2
 MLINKS+=clock_settime.2 clock_getres.2
+MLINKS+=eventfd.2 eventfd_read.2 \
+	eventfd.2 eventfd_write.2
 MLINKS+=extattr_get_file.2 extattr_set_file.2 \
 	extattr_get_file.2 extattr_delete_file.2 \
 	extattr_get_file.2 extattr_list_file.2 \
@@ -380,6 +385,9 @@ MLINKS+=statvfs.2 fstatvfs.2
 MLINKS+=statvfs.2 statvfs1.2
 MLINKS+=statvfs.2 fstatvfs1.2
 MLINKS+=syscall.2 __syscall.2
+MLINKS+=timerfd.2 timerfd_create.2 \
+	timerfd.2 timerfd_gettime.2 \
+	timerfd.2 timerfd_settime.2
 MLINKS+=truncate.2 ftruncate.2
 MLINKS+=unlink.2 unlinkat.2
 MLINKS+=utimes.2 futimes.2 utimes.2 lutimes.2