The branch main has been updated by kib:
URL:
https://cgit.FreeBSD.org/src/commit/?id=43736b71dd051212d5c55be9fa21c45993017fbb
commit 43736b71dd051212d5c55be9fa21c45993017fbb
Author: Konstantin Belousov <k...@freebsd.org>
AuthorDate: 2021-10-22 15:21:33 +0000
Commit: Konstantin Belousov <k...@freebsd.org>
CommitDate: 2021-11-10 19:18:54 +0000
Add sched_get/setaffinity(3)
for compatibility with Linux.
Reviewed by: jhb
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D32901
---
include/sched.h | 7 +++++++
lib/libc/gen/Makefile.inc | 2 ++
lib/libc/gen/Symbol.map | 5 +++++
lib/libc/gen/sched_getaffinity.c | 36 ++++++++++++++++++++++++++++++++++++
lib/libc/gen/sched_setaffinity.c | 36 ++++++++++++++++++++++++++++++++++++
5 files changed, 86 insertions(+)
diff --git a/include/sched.h b/include/sched.h
index 1a8eac18109c..531ecb1bb9a3 100644
--- a/include/sched.h
+++ b/include/sched.h
@@ -43,4 +43,11 @@ typedef struct _cpuset cpu_set_t;
#endif /* _WITH_CPU_SET_T */
#endif /* __BSD_VISIBLE */
+__BEGIN_DECLS
+#if __BSD_VISIBLE
+int sched_getaffinity(pid_t pid, size_t cpusetsz, cpuset_t *cpuset);
+int sched_setaffinity(int pid, size_t cpusetsz, const cpuset_t *cpuset);
+#endif /* __BSD_VISIBLE */
+__END_DECLS
+
#endif /* __SCHED_H__ */
diff --git a/lib/libc/gen/Makefile.inc b/lib/libc/gen/Makefile.inc
index aa9a4c0cbf67..75bc30d70976 100644
--- a/lib/libc/gen/Makefile.inc
+++ b/lib/libc/gen/Makefile.inc
@@ -123,6 +123,8 @@ SRCS+= __getosreldate.c \
scandir.c \
scandir_b.c \
scandir-compat11.c \
+ sched_getaffinity.c \
+ sched_setaffinity.c \
seed48.c \
seekdir.c \
semctl.c \
diff --git a/lib/libc/gen/Symbol.map b/lib/libc/gen/Symbol.map
index c89eb63caada..a4630749ae7e 100644
--- a/lib/libc/gen/Symbol.map
+++ b/lib/libc/gen/Symbol.map
@@ -435,6 +435,11 @@ FBSD_1.6 {
tcsetwinsize;
};
+FBSD_1.7 {
+ sched_getaffinity;
+ sched_setaffinity;
+};
+
FBSDprivate_1.0 {
/* needed by thread libraries */
__thr_jtable;
diff --git a/lib/libc/gen/sched_getaffinity.c b/lib/libc/gen/sched_getaffinity.c
new file mode 100644
index 000000000000..191374a3c5e3
--- /dev/null
+++ b/lib/libc/gen/sched_getaffinity.c
@@ -0,0 +1,36 @@
+/*-
+ * Copyright (c) 2021 The FreeBSD Foundation
+ *
+ * This software were developed by Konstantin Belousov <k...@freebsd.org>
+ * under sponsorship from the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sched.h>
+
+int
+sched_getaffinity(pid_t pid, size_t cpusetsz, cpuset_t *cpuset)
+{
+ return (cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, pid,
+ cpusetsz, cpuset));
+}
diff --git a/lib/libc/gen/sched_setaffinity.c b/lib/libc/gen/sched_setaffinity.c
new file mode 100644
index 000000000000..9368b1752b74
--- /dev/null
+++ b/lib/libc/gen/sched_setaffinity.c
@@ -0,0 +1,36 @@
+/*-
+ * Copyright (c) 2021 The FreeBSD Foundation
+ *
+ * This software were developed by Konstantin Belousov <k...@freebsd.org>
+ * under sponsorship from the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sched.h>
+
+int
+sched_setaffinity(pid_t pid, size_t cpusetsz, const cpuset_t *cpuset)
+{
+ return (cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, pid,
+ cpusetsz, cpuset));
+}
