Add waitid(2) syscall stub.

Minor bump to both libc and libpthread: make sure you install a new kernel!

ok millert@, deraadt@

6 files changed, 39 insertions, 5 deletions

diff --git a/lib/libc/Symbols.list b/lib/libc/Symbols.list
index d95c3f5c769..58c747697a9 100644
--- a/lib/libc/Symbols.list
+++ b/lib/libc/Symbols.list
@@ -240,6 +240,7 @@ _thread_sys_utimes
 _thread_sys_utrace
 _thread_sys_vfork
 _thread_sys_wait4
+_thread_sys_waitid
 _thread_sys_write
 _thread_sys_writev
 accept4
@@ -448,6 +449,7 @@ utimes
 utrace
 vfork
 wait4
+waitid
 write
 writev
 
diff --git a/lib/libc/hidden/sys/wait.h b/lib/libc/hidden/sys/wait.h
index b73d383220b..a8323d3c227 100644
--- a/lib/libc/hidden/sys/wait.h
+++ b/lib/libc/hidden/sys/wait.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: wait.h,v 1.2 2016/05/07 19:05:22 guenther Exp $	*/
+/*	$OpenBSD: wait.h,v 1.3 2022/10/26 23:16:24 kettenis Exp $	*/
 /*
  * Copyright (c) 2015 Philip Guenther <guenther@openbsd.org>
  *
@@ -24,5 +24,6 @@ PROTO_DEPRECATED(wait);
 PROTO_NORMAL(waitpid);
 PROTO_DEPRECATED(wait3);
 PROTO_CANCEL(wait4);
+PROTO_CANCEL(waitid);
 
 #endif /* !_LIBC_SYS_WAIT_H_ */
diff --git a/lib/libc/shlib_version b/lib/libc/shlib_version
index 7a1bc8e113e..9da1fafdd94 100644
--- a/lib/libc/shlib_version
+++ b/lib/libc/shlib_version
@@ -1,4 +1,4 @@
 major=96
-minor=3
+minor=4
 # note: If changes were made to include/thread_private.h or if system calls
 # were added/changed then librthread/shlib_version must also be updated.
diff --git a/lib/libc/sys/Makefile.inc b/lib/libc/sys/Makefile.inc
index 16817039ee6..3a7faf2bda0 100644
--- a/lib/libc/sys/Makefile.inc
+++ b/lib/libc/sys/Makefile.inc
@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile.inc,v 1.165 2022/10/07 15:21:04 deraadt Exp $
+#	$OpenBSD: Makefile.inc,v 1.166 2022/10/26 23:16:24 kettenis Exp $
 #	$NetBSD: Makefile.inc,v 1.35 1995/10/16 23:49:07 jtc Exp $
 #	@(#)Makefile.inc	8.1 (Berkeley) 6/17/93
 
@@ -36,7 +36,7 @@ CANCEL=	accept accept4 \
 	poll ppoll pread preadv pselect pwrite pwritev \
 	read readv recvfrom recvmmsg recvmsg \
 	select sendmmsg sendmsg sendto \
-	wait4 write writev
+	wait4 waitid write writev
 SRCS+=	${CANCEL:%=w_%.c}
 
 # modules with default implementations on all architectures, unless overridden
diff --git a/lib/libc/sys/w_waitid.c b/lib/libc/sys/w_waitid.c
new file mode 100644
index 00000000000..5aebd3ff36d
--- /dev/null
+++ b/lib/libc/sys/w_waitid.c
@@ -0,0 +1,31 @@
+/*	$OpenBSD: w_waitid.c,v 1.1 2022/10/26 23:16:24 kettenis Exp $ */
+/*
+ * Copyright (c) 2015 Philip Guenther <guenther@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/wait.h>
+#include "cancel.h"
+
+int
+waitid(idtype_t idtype, id_t id, siginfo_t *info, int options)
+{
+	int ret;
+
+	ENTER_CANCEL_POINT(1);
+	ret = HIDDEN(waitid)(idtype, id, info, options);
+	LEAVE_CANCEL_POINT(ret <= 0);
+	return (ret);
+}
+DEF_CANCEL(waitid);
diff --git a/lib/librthread/shlib_version b/lib/librthread/shlib_version
index 34aa186fe47..68cb9e8a964 100644
--- a/lib/librthread/shlib_version
+++ b/lib/librthread/shlib_version
@@ -1,2 +1,2 @@
 major=26
-minor=2
+minor=3