/* $NetBSD: linux_sched.h,v 1.12 2025/09/19 18:41:58 christos Exp $ */ /*- * Copyright (c) 1999 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, * NASA Ames Research Center. * * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ #ifndef _LINUX_SCHED_H #define _LINUX_SCHED_H /* * Flags passed to the Linux __clone(2) system call. */ #define LINUX_CLONE_CSIGNAL 0x000000ff /* signal to be sent at exit */ #define LINUX_CLONE_VM 0x00000100 /* share address space */ #define LINUX_CLONE_FS 0x00000200 /* share "file system" info */ #define LINUX_CLONE_FILES 0x00000400 /* share file descriptors */ #define LINUX_CLONE_SIGHAND 0x00000800 /* share signal actions */ #define LINUX_CLONE_PID 0x00001000 /* share process ID */ #define LINUX_CLONE_PTRACE 0x00002000 /* ptrace(2) continues on child */ #define LINUX_CLONE_VFORK 0x00004000 /* parent blocks until child exits */ #define LINUX_CLONE_PARENT 0x00008000 /* want same parent as cloner */ #define LINUX_CLONE_THREAD 0x00010000 /* same thread group */ #define LINUX_CLONE_NEWNS 0x00020000 /* new namespace group */ #define LINUX_CLONE_SYSVSEM 0x00040000 /* share SysV SEM_UNDO */ #define LINUX_CLONE_SETTLS 0x00080000 /* create new TLS for child */ #define LINUX_CLONE_PARENT_SETTID \ 0x00100000 /* set TID in the parent */ #define LINUX_CLONE_CHILD_CLEARTID \ 0x00200000 /* clear TID in the child */ #define LINUX_CLONE_DETACHED 0x00400000 /* unused */ #define LINUX_CLONE_UNTRACED 0x00800000 /* set if parent cannot force CLONE_PTRACE */ #define LINUX_CLONE_CHILD_SETTID \ 0x01000000 /* set TID in the child */ #define LINUX_CLONE_STOPPED 0x02000000 /* start in stopped state */ /* * Flags that clone supports but are yet to be supported in NetBSD */ #define LINUX_CLONE_PIDFD 0x00001000 /* since Linux 5.2 */ #define LINUX_CLONE_NEWCGROUP 0x02000000 /* New cgroup NS */ #define LINUX_CLONE_NEWUTS 0x04000000 #define LINUX_CLONE_NEWIPC 0x08000000 #define LINUX_CLONE_NEWUSER 0x10000000 #define LINUX_CLONE_NEWPID 0x20000000 #define LINUX_CLONE_NEWNET 0x40000000 #define LINUX_CLONE_IO 0x80000000 /* Flags for the clone3() syscall. */ #define LINUX_CLONE_CLEAR_SIGHAND 0x100000000ULL #define LINUX_CLONE_INTO_CGROUP 0x200000000ULL #define LINUX_CLONE_NEWTIME 0x00000080 #define LINUX_CLONE_LEGACY_FLAGS 0xffffffffULL #define LINUX_CLONE_ALLOWED_FLAGS ( \ LINUX_CLONE_VM | LINUX_CLONE_FS | LINUX_CLONE_FILES | \ LINUX_CLONE_SIGHAND | LINUX_CLONE_THREAD | LINUX_CLONE_VFORK | \ LINUX_CLONE_PARENT_SETTID | LINUX_CLONE_CHILD_CLEARTID | \ LINUX_CLONE_CHILD_SETTID | LINUX_CLONE_SETTLS | LINUX_CLONE_SYSVSEM) #define LINUX_CLONE_UNIMPLEMENTED_FLAGS ( \ LINUX_CLONE_NEWNS | LINUX_CLONE_NEWUTS | LINUX_CLONE_NEWIPC | \ LINUX_CLONE_NEWUSER | LINUX_CLONE_NEWPID | LINUX_CLONE_NEWNET | \ LINUX_CLONE_PIDFD) #define LINUX_CSIGNAL 0x000000ff struct linux_sched_param { int sched_priority; }; #define LINUX_SCHED_OTHER 0 #define LINUX_SCHED_FIFO 1 #define LINUX_SCHED_RR 2 struct linux_timespec { linux_time_t tv_sec; /* seconds */ long tv_nsec; /* nanoseconds */ }; struct linux_itimerspec { struct linux_timespec it_interval; struct linux_timespec it_value; }; struct linux_user_clone3_args { uint64_t flags; /* Flags bit mask */ uint64_t pidfd; /* Where to store PID file descriptor (int *) */ uint64_t child_tid; /* Where to store child TID, in child's memory (pid_t *) */ uint64_t parent_tid; /* Where to store child TID, in parent's memory (pid_t *) */ uint64_t exit_signal; /* Signal to deliver to parent on child termination */ uint64_t stack; /* Pointer to lowest byte of stack */ uint64_t stack_size; /* Size of stack */ uint64_t tls; /* Location of new TLS */ uint64_t set_tid; /* Pointer to a pid_t array (since Linux 5.5) */ uint64_t set_tid_size; /* Number of elements in set_tid (since Linux 5.5) */ uint64_t cgroup; /* File descriptor for target cgroup of child (since Linux 5.7) */ }; #define LINUX_CLOCK_REALTIME 0 #define LINUX_CLOCK_MONOTONIC 1 #define LINUX_CLOCK_PROCESS_CPUTIME_ID 2 #define LINUX_CLOCK_THREAD_CPUTIME_ID 3 #define LINUX_CLOCK_MONOTONIC_RAW 4 #define LINUX_CLOCK_REALTIME_COARSE 5 #define LINUX_CLOCK_MONOTONIC_COARSE 6 #define LINUX_CLOCK_BOOTTIME 7 #define LINUX_CLOCK_BOOTTIME_ALARM 8 #define LINUX_CLOCK_REALTIME_ALARM 9 #define LINUX_TIMER_ABSTIME 0x01 int linux_to_native_clockid(clockid_t *, clockid_t); void native_to_linux_timespec(struct linux_timespec *, const struct timespec *); void linux_to_native_timespec(struct timespec *, const struct linux_timespec *); void native_to_linux_itimerspec(struct linux_itimerspec *, const struct itimerspec *); void linux_to_native_itimerspec(struct itimerspec *, const struct linux_itimerspec *); int linux_to_native_timer_create_clockid(clockid_t *, clockid_t); int linux_to_native_timerfd_settime_flags(int *, int); #endif /* _LINUX_SCHED_H */