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Add sched_getcpu()
for compatibility with Linux. Reviewed by: jhb Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D32901
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@ -47,6 +47,7 @@ __BEGIN_DECLS
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#if __BSD_VISIBLE
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#if __BSD_VISIBLE
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int sched_getaffinity(pid_t pid, size_t cpusetsz, cpuset_t *cpuset);
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int sched_getaffinity(pid_t pid, size_t cpusetsz, cpuset_t *cpuset);
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int sched_setaffinity(int pid, size_t cpusetsz, const cpuset_t *cpuset);
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int sched_setaffinity(int pid, size_t cpusetsz, const cpuset_t *cpuset);
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int sched_getcpu(void);
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#endif /* __BSD_VISIBLE */
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#endif /* __BSD_VISIBLE */
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__END_DECLS
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__END_DECLS
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@ -2,7 +2,8 @@
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MIASM:= ${MIASM:Nfreebsd[467]_*}
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MIASM:= ${MIASM:Nfreebsd[467]_*}
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SRCS+= __vdso_gettc.c
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SRCS+= __vdso_gettc.c \
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sched_getcpu_gen.c
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MDASM= cerror.S \
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MDASM= cerror.S \
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syscall.S \
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syscall.S \
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@ -1,6 +1,7 @@
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# $FreeBSD$
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# $FreeBSD$
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SRCS+= __vdso_gettc.c
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SRCS+= __vdso_gettc.c \
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sched_getcpu_gen.c
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MDASM= Ovfork.S cerror.S syscall.S
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MDASM= Ovfork.S cerror.S syscall.S
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@ -438,6 +438,7 @@ FBSD_1.6 {
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FBSD_1.7 {
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FBSD_1.7 {
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sched_getaffinity;
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sched_getaffinity;
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sched_setaffinity;
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sched_setaffinity;
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sched_getcpu;
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};
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};
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FBSDprivate_1.0 {
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FBSDprivate_1.0 {
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36
lib/libc/gen/sched_getcpu_gen.c
Normal file
36
lib/libc/gen/sched_getcpu_gen.c
Normal file
@ -0,0 +1,36 @@
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/*-
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* Copyright (c) 2021 The FreeBSD Foundation
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*
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* This software were developed by Konstantin Belousov <kib@FreeBSD.org>
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* under sponsorship from the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sched.h>
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#include "libc_private.h"
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int
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sched_getcpu(void)
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{
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return (__sys_sched_getcpu());
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}
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@ -371,6 +371,7 @@ __ssize_t __sys_recv(int, void *, __size_t, int);
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__ssize_t __sys_recvfrom(int, void *, __size_t, int, struct sockaddr *,
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__ssize_t __sys_recvfrom(int, void *, __size_t, int, struct sockaddr *,
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__socklen_t *);
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__socklen_t *);
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__ssize_t __sys_recvmsg(int, struct msghdr *, int);
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__ssize_t __sys_recvmsg(int, struct msghdr *, int);
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int __sys_sched_getcpu(void);
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int __sys_select(int, struct fd_set *, struct fd_set *,
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int __sys_select(int, struct fd_set *, struct fd_set *,
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struct fd_set *, struct timeval *);
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struct fd_set *, struct timeval *);
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__ssize_t __sys_sendmsg(int, const struct msghdr *, int);
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__ssize_t __sys_sendmsg(int, const struct msghdr *, int);
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@ -1,6 +1,7 @@
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# $FreeBSD$
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# $FreeBSD$
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SRCS+= trivial-vdso_tc.c
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SRCS+= trivial-vdso_tc.c \
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sched_getcpu_gen.c
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MDASM= Ovfork.S cerror.S syscall.S
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MDASM= Ovfork.S cerror.S syscall.S
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@ -1,4 +1,6 @@
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# $FreeBSD$
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# $FreeBSD$
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SRCS+= __vdso_gettc.c
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SRCS+= __vdso_gettc.c \
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sched_getcpu_gen.c
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MDASM+= cerror.S
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MDASM+= cerror.S
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@ -1,4 +1,6 @@
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# $FreeBSD$
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# $FreeBSD$
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SRCS+= __vdso_gettc.c
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SRCS+= __vdso_gettc.c \
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sched_getcpu_gen.c
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MDASM+= cerror.S
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MDASM+= cerror.S
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@ -1,6 +1,7 @@
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# $FreeBSD$
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# $FreeBSD$
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SRCS+= __vdso_gettc.c
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SRCS+= __vdso_gettc.c \
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sched_getcpu_gen.c
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MDASM= cerror.S \
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MDASM= cerror.S \
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syscall.S \
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syscall.S \
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@ -36,6 +36,9 @@ SRCS+= \
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SRCS+= getdents.c lstat.c mknod.c stat.c
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SRCS+= getdents.c lstat.c mknod.c stat.c
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NOASM+= sched_getcpu.o
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PSEUDO+= _sched_getcpu.o
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SRCS+= fstat.c fstatat.c fstatfs.c getfsstat.c statfs.c
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SRCS+= fstat.c fstatat.c fstatfs.c getfsstat.c statfs.c
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NOASM+= fstat.o fstatat.o fstatfs.o getfsstat.o statfs.o
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NOASM+= fstat.o fstatat.o fstatfs.o getfsstat.o statfs.o
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PSEUDO+= _fstat.o _fstatat.o _fstatfs.o _getfsstat.o _statfs.o
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PSEUDO+= _fstat.o _fstatat.o _fstatfs.o _getfsstat.o _statfs.o
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@ -4,7 +4,8 @@
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SRCS+= \
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SRCS+= \
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__vdso_gettc.c \
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__vdso_gettc.c \
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pkru.c
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pkru.c \
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sched_getcpu_gen.c
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MAN+= \
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MAN+= \
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pkru.3
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pkru.3
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@ -567,6 +567,7 @@ sbrk
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##
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##
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sched_get_priority_max
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sched_get_priority_max
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sched_get_priority_min
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sched_get_priority_min
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sched_getcpu
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##
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##
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## Allow various thread/process scheduler operations.
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## Allow various thread/process scheduler operations.
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@ -1181,5 +1181,5 @@
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const struct spacectl_range32 *rqsr, \
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const struct spacectl_range32 *rqsr, \
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int flags, \
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int flags, \
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struct spacectl_range32 *rmsr); }
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struct spacectl_range32 *rmsr); }
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581 AUE_NULL NOPROTO { int sched_getcpu(void); }
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; vim: syntax=off
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; vim: syntax=off
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@ -686,3 +686,10 @@ sys_yield(struct thread *td, struct yield_args *uap)
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td->td_retval[0] = 0;
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td->td_retval[0] = 0;
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return (0);
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return (0);
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}
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}
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int
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sys_sched_getcpu(struct thread *td, struct sched_getcpu_args *uap)
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{
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td->td_retval[0] = td->td_oncpu;
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return (0);
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}
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@ -3261,6 +3261,9 @@
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_Out_opt_ struct spacectl_range *rmsr,
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_Out_opt_ struct spacectl_range *rmsr,
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);
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);
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}
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}
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581 AUE_NULL STD|CAPENABLED {
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int sched_getcpu(void);
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}
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; Please copy any additions and changes to the following compatability tables:
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; Please copy any additions and changes to the following compatability tables:
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; sys/compat/freebsd32/syscalls.master
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; sys/compat/freebsd32/syscalls.master
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